US20130174450A1 - Infant shoe and last used for manufacturing same - Google Patents
Infant shoe and last used for manufacturing same Download PDFInfo
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- US20130174450A1 US20130174450A1 US13/821,232 US201013821232A US2013174450A1 US 20130174450 A1 US20130174450 A1 US 20130174450A1 US 201013821232 A US201013821232 A US 201013821232A US 2013174450 A1 US2013174450 A1 US 2013174450A1
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- Prior art keywords
- footwear
- inner space
- infants
- toe
- room
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B3/00—Footwear characterised by the shape or the use
- A43B3/30—Footwear characterised by the shape or the use specially adapted for babies or small children
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/06—Footwear with health or hygienic arrangements ventilated
- A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
- A43B7/084—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes
- A43B7/087—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures characterised by the location of the holes in the bottom of the sole
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D3/00—Lasts
- A43D3/02—Lasts for making or repairing shoes
-
- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43D—MACHINES, TOOLS, EQUIPMENT OR METHODS FOR MANUFACTURING OR REPAIRING FOOTWEAR
- A43D3/00—Lasts
- A43D3/02—Lasts for making or repairing shoes
- A43D3/021—Lasts for making or repairing shoes for orthopaedic footwear
Definitions
- the present disclosure relates to footwear for infants and toddlers and a last used for manufacturing the same, and more particularly, to footwear for infants and toddlers manufactured according to foot shape characteristics and walking characteristics of infants and toddlers, different from those of adults, and a last used for manufacturing the same.
- Footwear for infants and toddlers is used from the point when infants and toddlers start learning a toddle and plays a role of helping walking of an infant or toddler or protecting the foot of an infant and toddler outdoors.
- Korean Unexamined Patent Publication No. 10-2006-0057303 entitled “indoor and outdoor footwear for infants”
- Korean Unexamined Patent Publication No. 10-2004-0076585 entitled “inner sole set of footwear for infants and toddlers”
- Korean Utility Model Registration No. 20-0281420 entitled “footwear for infants”
- Korean Utility Model Registration No. 20-0447718, entitled “footwear for infants” or the like have been proposed.
- footwear for infants and toddlers is manufactured by just reducing adult footwear to a size suitable for infants and toddlers while maintaining its shape. Therefore, since foot shape characteristics (e.g., a fan-shaped foot sole) and walking characteristics (keeping balance by means of toe movement when walking), different from those of adults, are not considered, the footwear for infants and toddlers may cause side effects when being worn.
- foot shape characteristics e.g., a fan-shaped foot sole
- walking characteristics keeping balance by means of toe movement when walking
- the present disclosure is directed to providing new-type footwear for infants and toddlers, which ensures stable walking of an infant or toddler who is wearing the footwear and promotes cognitive behavior development of the infant or toddler by providing a toe room formed higher than the toe of the infant or toddler, and a last used for manufacturing the footwear.
- the present disclosure is directed to providing new-type footwear for infants and toddlers, which may eliminate an interference between the footwear and the foot when the footwear is worn and thus prevent abnormal growth of the foot of an infant or toddler, by providing an inner space with a bottom surface whose width gradually increases from the rear end to the front end in accordance with the foot sole of the infant or toddler who has a fan-shaped flat foot, and a last used for manufacturing the footwear.
- the present disclosure is directed to providing new-type footwear for infants and toddlers, which may be worn by an infant or toddler in an optimal way, by forming an inner space of the footwear by a last whose dimension is limited in accordance with foot shape characteristics and walking characteristics of the infant or toddler, and a last used for manufacturing the footwear.
- the present disclosure is directed to providing new-type footwear for infants and toddlers, which may prevent an infant or toddler from falling down when walking by decreasing the entire sole thickness of the footwear and thus minimizing the rise of the center of gravity of the infant or toddler who is wearing the footwear, and also promote growth and development of an infant or toddler by using a sole made of soft and flexible material to ensure smooth foot movement, and a last used for manufacturing the footwear.
- the present disclosure provides footwear for infants and toddlers, including: an inner space 10 composed of a toe room 12 in which the toe is disposed; a heel room 14 in which the heel is disposed; and a middle room 16 located between the toe and the heel and in which the foot sole and the foot top are disposed, wherein the inner space 10 has a length L of 110 to 140 mm in accordance with foot sizes of infants and toddlers, wherein a height H of the front end F of the toe room 12 at a point corresponding to 80 to 85% of the length L of the inner space 10 from the back end B of the inner space 10 is 20 to 30 mm so that the toe room 12 is formed higher than the toe, thereby allowing an infant or toddler to walk while minimizing an interference in toe movement, and wherein the footwear is a sock-integrated footwear 100 a formed by injection-molding a sole 120 , prepared in accordance with a flat foot of an infant or toddler, to a sock in a mold
- bottom surfaces of the heel room 14 and the middle room 16 may become gradually broader in a forward direction and connect to a bottom surface of the toe room 12 so that a bottom surface of the inner space 10 has the same shape as a fan-shaped foot sole of the infant or toddler.
- a width W 1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of the inner space 10 from the back end B of the inner space 10 may be 1.6 to 1.7 times of a width W 2 of the bottom surface of the heel room at a point corresponding to 10% of the length L of the inner space 10 from the back end B of the inner space 10 .
- a width W 3 of the bottom surface of the middle room at a point corresponding to 40% of the length L of the inner space 10 from the back end B of the inner space 10 may be 1.0 to 1.4 times of a width W 2 of the bottom surface of the heel room at a point corresponding to 10% of the length L of the inner space 10 from the back end of the inner space 10 .
- an entire thickness T of a sole 20 formed at a lower portion of the inner space 10 may be 5 mm or less.
- a sole 20 formed at a lower portion of the inner space 10 may be made of material having a shore A hardness of 30 to 45, a specific weight of 1 g/cm 3 , tear strength of 20 kg/cm or above, tensile strength of 45 N/m 2 or above, and an elongation of 700% or above.
- a sole 20 formed at a lower portion of the inner space 10 may have a plurality of through holes 22 formed in a vertical direction to improve a sweat emission rate and a footwear dryness factor.
- the present disclosure provides a last used for manufacturing footwear for infants and toddlers, which includes: a bottom surface 2 of a flat foot corresponding to a fan-shaped foot sole of an infant or toddler; and a length L of 110 to 140 mm, wherein a height H of the front end at a point corresponding to 80 to 85% of the length L from the back end of the bottom surface 2 is 20 to 30 mm, wherein a width W 1 of the bottom surface at the point corresponding to 80 to 85% of the length L from the back end of the bottom surface 2 is 1.6 to 1.7 times of a width W 2 of the bottom surface at a point corresponding to 10% of the length L, and wherein a width W 3 of the bottom surface at the point corresponding to 40% of the length L from the back end of the bottom surface 2 is 1.0 to 1.4 times of the width W 2 of the bottom surface at the point corresponding to 10% of the length L.
- balance may be easily kept by means of toe movement since the toe of an infant or toddler may easily move in an expanded toe room.
- the rise of the center of gravity of an infant or toddler wearing the footwear is minimized due to a thin sole, the infant or toddler may walk more stably, and it is possible to prevent the infant or toddler from falling down and being damaged when walking.
- the toe since the toe may freely move even though the footwear of the present disclosure is worn by an infant or toddler, cognitive behavior development of the infant or toddler may be promoted, which gives an educational effect.
- the footwear of the present disclosure includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole of an infant or toddler, even though the footwear is worn by an infant or toddler, there is no interference between the footwear and the foot, which ensures normal growth of the foot of the infant or toddler. Further, since the sole made of soft and flexible material is used, the foot may move smoothly, thereby promoting growth and development of the infant or toddler and allowing a balanced physical figure.
- FIG. 1 is a diagram showing a technical spirit of footwear for infants and toddlers according to the present disclosure, in which a toe room is formed higher than the toe.
- FIG. 2 is a diagram showing a technical spirit of the footwear for infants and toddlers according to the present disclosure, which includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole.
- FIG. 3 is a diagram for illustrating a dimension design condition of footwear for infants and toddlers according to an embodiment of the present disclosure and a last used for manufacturing the same.
- FIG. 4 a is a diagram showing a front end of a general last which has been used for manufacturing footwear for infants and toddlers.
- FIG. 4 b is a diagram showing a front end of a last used for manufacturing the footwear for infants and toddlers according to the present disclosure.
- FIG. 5 a is a diagram showing a bottom surface of a general last which has been used for manufacturing footwear for infants and toddlers.
- FIG. 5 b is a diagram showing a bottom surface of the last used for manufacturing the footwear for infants and toddlers according to the present disclosure.
- FIG. 6 a is a side view showing foot shape characteristics of adults.
- FIG. 6 b is a side view showing foot shape characteristics of infants and toddlers.
- FIG. 7 a is a front view and a bottom view showing foot shape characteristics of adults.
- FIG. 7 b is a front view and a bottom view showing foot shape characteristics of infants and toddlers.
- FIG. 8 is a diagram showing a sole of the footwear for infants and toddlers according to an embodiment of the present disclosure.
- FIG. 9 a shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a sock-integrated footwear.
- FIG. 9 b shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a general shoe.
- FIG. 1 is a diagram showing a technical spirit of footwear for infants and toddlers according to the present disclosure, in which a toe room is formed higher than the toe.
- a toe room 12 in which the toe of an infant or toddler is disposed is formed higher than the toe. Accordingly, a space remains therein so that the infant or toddler may move the toe in all directions while wearing the footwear 100 .
- the footwear 100 for infants and toddlers includes an inner space 10 surrounded by a sole 20 and uppers 40 .
- the inner space 10 is composed of the toe room 12 in which the toe is disposed, a heel room 14 in which the heel is disposed, and a middle room 16 located between the toe and the heel and in which the foot sole and the foot top are disposed.
- the toe room 12 of the inner space 10 is formed higher than the toe of an infant or toddler, disposed in the toe room 12 , as described above. Therefore, if the infant or toddler wriggles the toes, the interference caused by the toe movement of the infant or toddler, composed of folding or spreading, against the footwear is minimized.
- the toe is not restrained nor confined by the footwear 100 . Accordingly, by freely folding or spreading the toes, the infant or toddler may easily keep balance when walking, which ensures stable walking of the infant or toddler who is wearing the footwear 100 . In addition, the free movement of the toes may promote cognitive behavioral development of the infant or toddler.
- FIG. 2 is a diagram showing a technical spirit of the footwear for infants and toddlers according to the present disclosure, which includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole.
- the bottom surfaces of the heel room 14 and the middle room 16 become gradually broader in a forward direction and connect to a bottom surface of the toe room 12 so that a bottom surface of the inner space 10 has the same shape as a fan-shaped foot sole of the infant or toddler.
- the foot of an infant or toddler is a flat foot with a fan-shaped foot sole, different from that of an adult, since it is in a state of growing, and the footwear 100 for infants and toddlers according to the present disclosure is manufactured while considering this. Accordingly, since arch bones are growing along with relevant muscles and ligaments, an arch is formed at the foot. Different from a general shoe for infants and toddlers, manufactured by just decreasing a size of adult footwear in which a central portion of the foot sole is formed narrow, the footwear 100 for infants and toddlers according to the present disclosure prevents the foot from being restrained due to the shape of the footwear 100 . Therefore, even though an infant or toddler wears the footwear 100 , the foot may grow normally.
- FIGS. 3 to 9 an embodiment of the present disclosure will be described in detail with reference to FIGS. 3 to 9 .
- components or operations which may be easily understood from a general shoe, footwear for infants and toddlers, or a last used for manufacturing footwear by those skilled in the art, are depicted or explained in brief or omitted.
- specific technical configurations or operations not directly associated with the technical features of the present disclosure are not explained or depicted in detail, and only technical configurations associated with the present disclosure are depicted or explained in brief.
- FIG. 3 is a diagram for illustrating a dimension design condition of footwear for infants and toddlers according to an embodiment of the present disclosure and a last used for manufacturing the same.
- the inner space 10 is formed by using a footwear-manufacturing last 1 whose dimension is limited in consideration of foot shape characteristics (e.g., a fan-shaped foot sole) of the foot of an infant or toddler and walking characteristics (keeping balance by means of toe movement when walking) of an infant or toddler.
- foot shape characteristics e.g., a fan-shaped foot sole
- walking characteristics keeping balance by means of toe movement when walking
- the inner space 10 formed as above optimizes the height of the toe room 12 in accordance with walking characteristics of an infant or toddler.
- a height H of the front end at a point corresponding to 80 to 85% of the length L of the footwear-manufacturing last 1 from the back end of the bottom surface 2 of the footwear-manufacturing last 1 namely a height H of the front end F of the toe room 12 at a point corresponding to 80 to 85% of the length L of the inner space 10 from the back end B of the inner space 10 , should be 20 to 30 mm.
- This value is limited to the footwear-manufacturing last 1 having a length L of 110 to 140 mm in accordance with a foot size of an infant or toddler.
- the inner space 10 optimizes the shape of the bottom surface in accordance with the foot shape characteristics of the foot of an infant or toddler.
- a width W 1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of the footwear-manufacturing last from the back end of the bottom surface 2 of the footwear-manufacturing last 1 namely a width W 1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of the inner space 10 from the back end B of the inner space 10
- a width W 3 of the bottom surface of the middle room at the point corresponding to 40% of the length L of the footwear-manufacturing last length L from the back end of the bottom surface 2 of the footwear-manufacturing last 1 becomes 1.0 to 1.4 times of the width W 2 of the bottom surface of the heel room at the point corresponding to 10 % of the length L of the footwear-manufacturing last from the back end of the bottom surface 2 of the footwear-manufacturing last 1 , namely the width W 2 of the bottom surface of the heel room at the point corresponding to 10% of the length L of the inner space 10 from the back end of the inner space.
- an entire thickness T of the sole 20 formed at a lower portion of the inner space 10 is 5 mm or less. This is to minimize the rise of the center of gravity of an infant or toddler who wears the footwear 100 , which may prevent an infant or toddler from falling down when walking and allow the infant or toddler to walk while keeping balance more stably.
- the sole 20 is defined as including all of various soles formed at the lower portion of the inner space 10 .
- the sole 20 is made of material having a shore A hardness of 30 to 45, a specific weight of 1 g/cm 3 , tear strength of 20 kg/cm or above, tensile strength of 45 N/m 2 or above, and an elongation of 700% or above.
- a shore A hardness of 30 to 45 a specific weight of 1 g/cm 3
- tear strength of 20 kg/cm or above tensile strength of 45 N/m 2 or above
- an elongation of 700% or above elongation of 700% or above.
- FIG. 4 a is a diagram showing a front end of a general last which has been used for manufacturing footwear for infants and toddlers
- FIG. 4 b is a diagram showing a front end of a last used for manufacturing the footwear for infants and toddlers according to the present disclosure.
- the height H of the front end 3 of the last is higher than the height H of the front end 3 ′ of a general last 1 ′. This difference is caused by the fact whether walking characteristics (keeping balance by means of toe movement when walking) of an infant or toddler are considered or not.
- the height H of the front end is 20 to 30 mm.
- FIG. 5 a is a diagram showing a bottom surface of a general last which has been used for manufacturing footwear for infants and toddlers
- FIG. 5 b is a diagram showing a bottom surface of the last used for manufacturing the footwear for infants and toddlers according to the present disclosure.
- the last 1 according to the present disclosure has a fan shape, different from a general last 1 ′ having a foot sole shape of adults. This difference is caused by the fact whether physical characteristics (e.g., a fan-shaped foot sole) of the foot of an infant or toddler are considered or not.
- a width W 1 of the bottom surface at a point corresponding to 80 to 85% of the length L from the back end of the bottom surface 2 is 1.6 to 1.7 times of a width W 2 of the bottom surface at a point corresponding to 10% of the length L
- a width W 3 of the bottom surface at a point corresponding to 40% of the length L from the back end of the bottom surface 2 is 1.0 to 1.4 times of the width W 2 of the bottom surface at the point corresponding to 10% of the length L.
- FIG. 6 a is a side view showing foot shape characteristics of adults
- FIG. 6 b is a side view showing foot shape characteristics of infants and toddlers
- FIG. 7 a is a front view and a bottom view showing foot shape characteristics of adults
- FIG. 7 b is a front view and a bottom view showing foot shape characteristics of infants and toddlers.
- the foot of an infant or toddler has a shape different from the foot of an adult.
- the foot of an infant or toddler is a flat foot as shown in FIG. 6 b
- the foot sole has a fan shape as shown in FIG. 7 b.
- FIG. 8 is a diagram showing a sole of the footwear for infants and toddlers according to an embodiment of the present disclosure.
- the sole 20 formed at the lower portion of the inner space 10 has a plurality of through holes 22 formed in a vertical direction to improve air permeability.
- the through holes 22 allow the inner space 10 to communicate with the outside so that sweat in the inner space 10 may easily discharge out and the footwear may be easily dried after being washed.
- the number of through holes 22 formed may be 20 or greater.
- a circular pattern and a linear pattern formed at the sole 20 as shown in FIG. 8 increases a friction between the footwear 100 and a bottom surface of a building or the ground, contacted by the footwear contacts 100 , thereby preventing the footwear 100 from slipping.
- FIG. 9 a shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a sock-integrated footwear
- FIG. 9 b shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a general shoe.
- a sock-integrated footwear 100 a manufactured by injection-molding a sole 120 to a sock 110 in a mold or a general shoe 100 b composed of a sole 130 and uppers 40 and made by means of expansion molding
- the footwear 100 for infants and toddlers according to the present disclosure and the last 1 used for manufacturing the same may be applied.
Abstract
The disclosure relates to footwear for infants and toddlers manufactured according to foot shape characteristics and walking characteristics of infants and toddlers, different from those of adults, and a last used for manufacturing the same. The footwear for infants and toddlers includes an inner space composed of a toe room in which the toe is disposed, a heel room in which the heel is disposed, and a middle room located between the toe and the heel and in which the foot sole and the foot top are disposed. In particular, since the toe room is formed higher than the toe, an infant or toddler walks while minimizing interference in toe movement.
Description
- The present disclosure relates to footwear for infants and toddlers and a last used for manufacturing the same, and more particularly, to footwear for infants and toddlers manufactured according to foot shape characteristics and walking characteristics of infants and toddlers, different from those of adults, and a last used for manufacturing the same.
- Footwear for infants and toddlers is used from the point when infants and toddlers start learning a toddle and plays a role of helping walking of an infant or toddler or protecting the foot of an infant and toddler outdoors.
- In relation to such footwear for infants and toddlers, Korean Unexamined Patent Publication No. 10-2006-0057303, entitled “indoor and outdoor footwear for infants”, Korean Unexamined Patent Publication No. 10-2004-0076585, entitled “inner sole set of footwear for infants and toddlers”, Korean Utility Model Registration No. 20-0281420, entitled “footwear for infants”, Korean Utility Model Registration No. 20-0447718, entitled “footwear for infants” or the like have been proposed.
- However, such footwear for infants and toddlers is manufactured by just reducing adult footwear to a size suitable for infants and toddlers while maintaining its shape. Therefore, since foot shape characteristics (e.g., a fan-shaped foot sole) and walking characteristics (keeping balance by means of toe movement when walking), different from those of adults, are not considered, the footwear for infants and toddlers may cause side effects when being worn.
- In other words, during the period of infants and toddlers in which the foot size increases and the foot shape changes, if the foot shape is restrained or confined by wearing inappropriate footwear, the foot of an infant and toddler grows abnormally, which may cause deformity or unbalanced development of the body. In addition, since the foot restrained by the footwear may not normally move, a normal walking pattern may not be learned, resulting in wrong gaits.
- In addition, since the foot is restrained by the footwear, cognitive behavioral development according to various physical behaviors such as foot movement deteriorates, which may be an obstacle in intellectual development of infants and toddlers.
- Accordingly, the development of footwear for infants and toddlers in consideration of foot shape characteristics and walking characteristics of infants and toddlers is being demanded.
- Meanwhile, if infants and toddlers untrained in walking wear footwear, it is difficult to keep balance during walking since the center of gravity moves higher as much as the sole height of the footwear, which should be considered when designing the footwear for infants and toddlers.
- The present disclosure is directed to providing new-type footwear for infants and toddlers, which ensures stable walking of an infant or toddler who is wearing the footwear and promotes cognitive behavior development of the infant or toddler by providing a toe room formed higher than the toe of the infant or toddler, and a last used for manufacturing the footwear.
- In addition, the present disclosure is directed to providing new-type footwear for infants and toddlers, which may eliminate an interference between the footwear and the foot when the footwear is worn and thus prevent abnormal growth of the foot of an infant or toddler, by providing an inner space with a bottom surface whose width gradually increases from the rear end to the front end in accordance with the foot sole of the infant or toddler who has a fan-shaped flat foot, and a last used for manufacturing the footwear.
- In particular, the present disclosure is directed to providing new-type footwear for infants and toddlers, which may be worn by an infant or toddler in an optimal way, by forming an inner space of the footwear by a last whose dimension is limited in accordance with foot shape characteristics and walking characteristics of the infant or toddler, and a last used for manufacturing the footwear.
- Moreover, the present disclosure is directed to providing new-type footwear for infants and toddlers, which may prevent an infant or toddler from falling down when walking by decreasing the entire sole thickness of the footwear and thus minimizing the rise of the center of gravity of the infant or toddler who is wearing the footwear, and also promote growth and development of an infant or toddler by using a sole made of soft and flexible material to ensure smooth foot movement, and a last used for manufacturing the footwear.
- In one general aspect, the present disclosure provides footwear for infants and toddlers, including: an
inner space 10 composed of atoe room 12 in which the toe is disposed; aheel room 14 in which the heel is disposed; and amiddle room 16 located between the toe and the heel and in which the foot sole and the foot top are disposed, wherein theinner space 10 has a length L of 110 to 140 mm in accordance with foot sizes of infants and toddlers, wherein a height H of the front end F of thetoe room 12 at a point corresponding to 80 to 85% of the length L of theinner space 10 from the back end B of theinner space 10 is 20 to 30 mm so that thetoe room 12 is formed higher than the toe, thereby allowing an infant or toddler to walk while minimizing an interference in toe movement, and wherein the footwear is a sock-integratedfootwear 100 a formed by injection-molding a sole 120, prepared in accordance with a flat foot of an infant or toddler, to a sock in a mold. In addition, bottom surfaces of theheel room 14 and themiddle room 16 may become gradually broader in a forward direction and connect to a bottom surface of thetoe room 12 so that a bottom surface of theinner space 10 has the same shape as a fan-shaped foot sole of the infant or toddler. - In addition, a width W1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of the
inner space 10 from the back end B of theinner space 10 may be 1.6 to 1.7 times of a width W2 of the bottom surface of the heel room at a point corresponding to 10% of the length L of theinner space 10 from the back end B of theinner space 10. Moreover, a width W3 of the bottom surface of the middle room at a point corresponding to 40% of the length L of theinner space 10 from the back end B of theinner space 10 may be 1.0 to 1.4 times of a width W2 of the bottom surface of the heel room at a point corresponding to 10% of the length L of theinner space 10 from the back end of theinner space 10. - In addition, an entire thickness T of a sole 20 formed at a lower portion of the
inner space 10 may be 5 mm or less. - In addition, a sole 20 formed at a lower portion of the
inner space 10 may be made of material having a shore A hardness of 30 to 45, a specific weight of 1 g/cm3, tear strength of 20 kg/cm or above, tensile strength of 45 N/m2 or above, and an elongation of 700% or above. - In addition, a sole 20 formed at a lower portion of the
inner space 10 may have a plurality of throughholes 22 formed in a vertical direction to improve a sweat emission rate and a footwear dryness factor. - In another aspect, the present disclosure provides a last used for manufacturing footwear for infants and toddlers, which includes: a
bottom surface 2 of a flat foot corresponding to a fan-shaped foot sole of an infant or toddler; and a length L of 110 to 140 mm, wherein a height H of the front end at a point corresponding to 80 to 85% of the length L from the back end of thebottom surface 2 is 20 to 30 mm, wherein a width W1 of the bottom surface at the point corresponding to 80 to 85% of the length L from the back end of thebottom surface 2 is 1.6 to 1.7 times of a width W2 of the bottom surface at a point corresponding to 10% of the length L, and wherein a width W3 of the bottom surface at the point corresponding to 40% of the length L from the back end of thebottom surface 2 is 1.0 to 1.4 times of the width W2 of the bottom surface at the point corresponding to 10% of the length L. - If the footwear for infants and toddlers according to the present disclosure and the last used for manufacturing the same are used, balance may be easily kept by means of toe movement since the toe of an infant or toddler may easily move in an expanded toe room. In addition, since the rise of the center of gravity of an infant or toddler wearing the footwear is minimized due to a thin sole, the infant or toddler may walk more stably, and it is possible to prevent the infant or toddler from falling down and being damaged when walking.
- In addition, since the toe may freely move even though the footwear of the present disclosure is worn by an infant or toddler, cognitive behavior development of the infant or toddler may be promoted, which gives an educational effect.
- Moreover, since the footwear of the present disclosure includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole of an infant or toddler, even though the footwear is worn by an infant or toddler, there is no interference between the footwear and the foot, which ensures normal growth of the foot of the infant or toddler. Further, since the sole made of soft and flexible material is used, the foot may move smoothly, thereby promoting growth and development of the infant or toddler and allowing a balanced physical figure.
-
FIG. 1 is a diagram showing a technical spirit of footwear for infants and toddlers according to the present disclosure, in which a toe room is formed higher than the toe. -
FIG. 2 is a diagram showing a technical spirit of the footwear for infants and toddlers according to the present disclosure, which includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole. -
FIG. 3 is a diagram for illustrating a dimension design condition of footwear for infants and toddlers according to an embodiment of the present disclosure and a last used for manufacturing the same. -
FIG. 4 a is a diagram showing a front end of a general last which has been used for manufacturing footwear for infants and toddlers. -
FIG. 4 b is a diagram showing a front end of a last used for manufacturing the footwear for infants and toddlers according to the present disclosure. -
FIG. 5 a is a diagram showing a bottom surface of a general last which has been used for manufacturing footwear for infants and toddlers. -
FIG. 5 b is a diagram showing a bottom surface of the last used for manufacturing the footwear for infants and toddlers according to the present disclosure. -
FIG. 6 a is a side view showing foot shape characteristics of adults. -
FIG. 6 b is a side view showing foot shape characteristics of infants and toddlers. -
FIG. 7 a is a front view and a bottom view showing foot shape characteristics of adults. -
FIG. 7 b is a front view and a bottom view showing foot shape characteristics of infants and toddlers. -
FIG. 8 is a diagram showing a sole of the footwear for infants and toddlers according to an embodiment of the present disclosure. -
FIG. 9 a shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a sock-integrated footwear. -
FIG. 9 b shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a general shoe. -
FIG. 1 is a diagram showing a technical spirit of footwear for infants and toddlers according to the present disclosure, in which a toe room is formed higher than the toe. - Referring to
FIG. 1 , in thefootwear 100 for infants and toddlers according to the present disclosure, atoe room 12 in which the toe of an infant or toddler is disposed is formed higher than the toe. Accordingly, a space remains therein so that the infant or toddler may move the toe in all directions while wearing thefootwear 100. - The
footwear 100 for infants and toddlers according to the present disclosure includes aninner space 10 surrounded by a sole 20 anduppers 40. Theinner space 10 is composed of thetoe room 12 in which the toe is disposed, aheel room 14 in which the heel is disposed, and amiddle room 16 located between the toe and the heel and in which the foot sole and the foot top are disposed. Here, thetoe room 12 of theinner space 10 is formed higher than the toe of an infant or toddler, disposed in thetoe room 12, as described above. Therefore, if the infant or toddler wriggles the toes, the interference caused by the toe movement of the infant or toddler, composed of folding or spreading, against the footwear is minimized. Therefore, the toe is not restrained nor confined by thefootwear 100. Accordingly, by freely folding or spreading the toes, the infant or toddler may easily keep balance when walking, which ensures stable walking of the infant or toddler who is wearing thefootwear 100. In addition, the free movement of the toes may promote cognitive behavioral development of the infant or toddler. -
FIG. 2 is a diagram showing a technical spirit of the footwear for infants and toddlers according to the present disclosure, which includes an inner space having a bottom surface with the same shape as a fan-shaped foot sole. - Referring to
FIG. 2 , in thefootwear 100 for infants and toddlers according to the present disclosure, the bottom surfaces of theheel room 14 and themiddle room 16 become gradually broader in a forward direction and connect to a bottom surface of thetoe room 12 so that a bottom surface of theinner space 10 has the same shape as a fan-shaped foot sole of the infant or toddler. - In other words, the foot of an infant or toddler is a flat foot with a fan-shaped foot sole, different from that of an adult, since it is in a state of growing, and the
footwear 100 for infants and toddlers according to the present disclosure is manufactured while considering this. Accordingly, since arch bones are growing along with relevant muscles and ligaments, an arch is formed at the foot. Different from a general shoe for infants and toddlers, manufactured by just decreasing a size of adult footwear in which a central portion of the foot sole is formed narrow, thefootwear 100 for infants and toddlers according to the present disclosure prevents the foot from being restrained due to the shape of thefootwear 100. Therefore, even though an infant or toddler wears thefootwear 100, the foot may grow normally. - Hereinafter, an embodiment of the present disclosure will be described in detail with reference to
FIGS. 3 to 9 . Meanwhile, components or operations, which may be easily understood from a general shoe, footwear for infants and toddlers, or a last used for manufacturing footwear by those skilled in the art, are depicted or explained in brief or omitted. In particular, in the drawings and the detailed description, specific technical configurations or operations not directly associated with the technical features of the present disclosure are not explained or depicted in detail, and only technical configurations associated with the present disclosure are depicted or explained in brief. -
FIG. 3 is a diagram for illustrating a dimension design condition of footwear for infants and toddlers according to an embodiment of the present disclosure and a last used for manufacturing the same. - Referring to
FIG. 3 , in thefootwear 100 for infants and toddlers according to an embodiment of the present disclosure, theinner space 10 is formed by using a footwear-manufacturing last 1 whose dimension is limited in consideration of foot shape characteristics (e.g., a fan-shaped foot sole) of the foot of an infant or toddler and walking characteristics (keeping balance by means of toe movement when walking) of an infant or toddler. - The
inner space 10 formed as above optimizes the height of thetoe room 12 in accordance with walking characteristics of an infant or toddler. A height H of the front end at a point corresponding to 80 to 85% of the length L of the footwear-manufacturing last 1 from the back end of thebottom surface 2 of the footwear-manufacturing last 1, namely a height H of the front end F of thetoe room 12 at a point corresponding to 80 to 85% of the length L of theinner space 10 from the back end B of theinner space 10, should be 20 to 30 mm. This value is limited to the footwear-manufacturing last 1 having a length L of 110 to 140 mm in accordance with a foot size of an infant or toddler. - In addition, the
inner space 10 optimizes the shape of the bottom surface in accordance with the foot shape characteristics of the foot of an infant or toddler. A width W1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of the footwear-manufacturing last from the back end of thebottom surface 2 of the footwear-manufacturing last 1, namely a width W1 of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length L of theinner space 10 from the back end B of theinner space 10, becomes 1.6 to 1.7 times of a width W2 of the bottom surface of the heel room at a point corresponding to 10% of the length L of the footwear-manufacturing last from the back end of thebottom surface 2 of the footwear-manufacturing last 1, namely a width W2 of the bottom surface of the heel room at the point corresponding to 10% of the length L of the inner space from the back end B of theinner space 10. In addition, a width W3 of the bottom surface of the middle room at the point corresponding to 40% of the length L of the footwear-manufacturing last length L from the back end of thebottom surface 2 of the footwear-manufacturing last 1, namely a width W3 of the bottom surface of the middle room at the point corresponding to 40% of the length L of theinner space 10 from the back end B of thebottom surface 2, becomes 1.0 to 1.4 times of the width W2 of the bottom surface of the heel room at the point corresponding to 10% of the length L of the footwear-manufacturing last from the back end of thebottom surface 2 of the footwear-manufacturing last 1, namely the width W2 of the bottom surface of the heel room at the point corresponding to 10% of the length L of theinner space 10 from the back end of the inner space. - Meanwhile, an entire thickness T of the sole 20 formed at a lower portion of the
inner space 10 is 5 mm or less. This is to minimize the rise of the center of gravity of an infant or toddler who wears thefootwear 100, which may prevent an infant or toddler from falling down when walking and allow the infant or toddler to walk while keeping balance more stably. - Here, the sole 20 is defined as including all of various soles formed at the lower portion of the
inner space 10. - In addition, the sole 20 is made of material having a shore A hardness of 30 to 45, a specific weight of 1 g/cm3, tear strength of 20 kg/cm or above, tensile strength of 45 N/m2 or above, and an elongation of 700% or above. In this case, even though the
footwear 100 for infants and toddlers is worn, this gives a state like a bare foot so that an infant or toddler may move foot smoothly. Such foot movement may promote growth and development of the infant or toddler. -
FIG. 4 a is a diagram showing a front end of a general last which has been used for manufacturing footwear for infants and toddlers, andFIG. 4 b is a diagram showing a front end of a last used for manufacturing the footwear for infants and toddlers according to the present disclosure. - Referring to
FIGS. 4 a and 4 b, it may be found that the height H of thefront end 3 of the last according to the present disclosure is higher than the height H of thefront end 3′ of a general last 1′. This difference is caused by the fact whether walking characteristics (keeping balance by means of toe movement when walking) of an infant or toddler are considered or not. In case of the last 1 used for manufacturing the footwear for infants and toddlers according to an embodiment of the present disclosure, the height H of the front end is 20 to 30 mm. -
FIG. 5 a is a diagram showing a bottom surface of a general last which has been used for manufacturing footwear for infants and toddlers, andFIG. 5 b is a diagram showing a bottom surface of the last used for manufacturing the footwear for infants and toddlers according to the present disclosure. - Referring to
FIGS. 5 a and 5 b, it may be found that the last 1 according to the present disclosure has a fan shape, different from a general last 1′ having a foot sole shape of adults. This difference is caused by the fact whether physical characteristics (e.g., a fan-shaped foot sole) of the foot of an infant or toddler are considered or not. In case of the last 1 used for manufacturing the footwear for infants and toddlers according to an embodiment of the present disclosure, a width W1 of the bottom surface at a point corresponding to 80 to 85% of the length L from the back end of thebottom surface 2 is 1.6 to 1.7 times of a width W2 of the bottom surface at a point corresponding to 10% of the length L, and a width W3 of the bottom surface at a point corresponding to 40% of the length L from the back end of thebottom surface 2 is 1.0 to 1.4 times of the width W2 of the bottom surface at the point corresponding to 10% of the length L. -
FIG. 6 a is a side view showing foot shape characteristics of adults,FIG. 6 b is a side view showing foot shape characteristics of infants and toddlers,FIG. 7 a is a front view and a bottom view showing foot shape characteristics of adults, andFIG. 7 b is a front view and a bottom view showing foot shape characteristics of infants and toddlers. - Referring to
FIGS. 6 and 7 , it may be found that the foot of an infant or toddler has a shape different from the foot of an adult. The foot of an infant or toddler is a flat foot as shown inFIG. 6 b, and the foot sole has a fan shape as shown inFIG. 7 b. -
FIG. 8 is a diagram showing a sole of the footwear for infants and toddlers according to an embodiment of the present disclosure. - Referring to
FIG. 8 , the sole 20 formed at the lower portion of theinner space 10 has a plurality of throughholes 22 formed in a vertical direction to improve air permeability. The through holes 22 allow theinner space 10 to communicate with the outside so that sweat in theinner space 10 may easily discharge out and the footwear may be easily dried after being washed. - Here, the number of through
holes 22 formed may be 20 or greater. - Meanwhile, a circular pattern and a linear pattern formed at the sole 20 as shown in
FIG. 8 increases a friction between thefootwear 100 and a bottom surface of a building or the ground, contacted by thefootwear contacts 100, thereby preventing thefootwear 100 from slipping. -
FIG. 9 a shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a sock-integrated footwear, andFIG. 9 b shows an example in which the footwear for infants and toddlers according to the present disclosure is applied to a general shoe. - Referring to
FIGS. 9 a and 9 b, regardless of the kind of footwear or the manufacture method thereof, for example a sock-integratedfootwear 100 a manufactured by injection-molding a sole 120 to asock 110 in a mold or ageneral shoe 100 b composed of a sole 130 anduppers 40 and made by means of expansion molding, thefootwear 100 for infants and toddlers according to the present disclosure and the last 1 used for manufacturing the same may be applied. - Heretofore, the present disclosure has been described in detail by means of detailed embodiments, but the present disclosure is not limited to the embodiments but may be modified in various ways without departing from the spirit and scope of the disclosure by those having ordinary skill in the art.
Claims (8)
1. Footwear for infants and toddlers, comprising:
an inner space composed of:
a toe room in which the toe is disposed;
a heel room in which the heel is disposed; and
a middle room located between the toe and the heel and in which the foot sole and the foot top are disposed,
wherein the inner space has a length of 110 to 140 mm in accordance with foot sizes of infants and toddlers,
wherein a height of the front end of the toe room at a point corresponding to 80 to 85% of the length of the inner space from the back end of the inner space is 20 to 30 mm so that the toe room is formed higher than the toe, thereby allowing an infant or toddler to walk while minimizing an interference in toe movement, and
wherein the footwear is a sock-integrated footwear formed by injection-molding a sole, prepared in accordance with a flat foot of an infant or toddler, to a sock in a mold.
2. The footwear for infants and toddlers according to claim 1 ,
wherein bottom surfaces of the heel room and the middle room become gradually broader in a forward direction and connect to a bottom surface of the toe room so that a bottom surface of the inner space has the same shape as a fan-shaped foot sole of the infant or toddler.
3. The footwear for infants and toddlers according to claim 2 ,
wherein a width of the bottom surface of the toe room at the point corresponding to 80 to 85% of the length of the inner space from the back end of the inner space is 1.6 to 1.7 times of a width of the bottom surface of the heel room at a point corresponding to 10% of the length of the inner space from the back end of the inner space.
4. The footwear for infants and toddlers according to claim 2 ,
wherein a width of the bottom surface of the middle room at a point corresponding to 40% of the length of the inner space from the back end of the inner space is 1.0 to 1.4 times of a width of the bottom surface of the heel room at a point corresponding to 10% of the length of the inner space from the back end of the inner space.
5. The footwear for infants and toddlers according to claim 1 ,
wherein an entire thickness of a sole formed at a lower portion of the inner space is 5 mm or less.
6. The footwear for infants and toddlers according to claim 1 ,
wherein a sole formed at a lower portion of the inner space is made of material having a shore A hardness of 30 to 45, a specific weight of 1 g/cm3, tear strength of 20 kg/cm or above, tensile strength of 45 N/m2 or above, and an elongation of 700% or above.
7. The footwear for infants and toddlers according to claim 1 ,
wherein a sole formed at a lower portion of the inner space has a plurality of through holes formed in a vertical direction to improve a sweat emission rate and a footwear dryness factor.
8. A last used for manufacturing footwear for infants and toddlers, the last comprising:
a bottom surface of a flat foot corresponding to a fan-shaped foot sole of an infant or toddler; and
a length of 110 to 140 mm,
wherein a height of the front end at a point corresponding to 80 to 85% of the length from the back end of the bottom surface is 20 to 30 mm,
wherein a width of the bottom surface at the point corresponding to 80 to 85% of the length from the back end of the bottom surface is 1.6 to 1.7 times of a width of the bottom surface at a point corresponding to 10% of the length, and
wherein a width of the bottom surface at the point corresponding to 40% of the length from the back end of the bottom surface is 1.0 to 1.4 times of the width of the bottom surface at the point corresponding to 10% of the length.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2010-0087374 | 2010-09-07 | ||
KR1020100087374A KR101031972B1 (en) | 2010-09-07 | 2010-09-07 | Shoes for infant |
PCT/KR2010/009410 WO2012033263A1 (en) | 2010-09-07 | 2010-12-28 | Infant shoe and last used for manufacturing same |
Publications (1)
Publication Number | Publication Date |
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US20130174450A1 true US20130174450A1 (en) | 2013-07-11 |
Family
ID=44050725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/821,232 Abandoned US20130174450A1 (en) | 2010-09-07 | 2010-12-28 | Infant shoe and last used for manufacturing same |
Country Status (7)
Country | Link |
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US (1) | US20130174450A1 (en) |
EP (1) | EP2614738B1 (en) |
JP (1) | JP5733542B2 (en) |
KR (1) | KR101031972B1 (en) |
CN (1) | CN103025184A (en) |
ES (1) | ES2746186T3 (en) |
WO (1) | WO2012033263A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101031972B1 (en) * | 2010-09-07 | 2011-04-29 | (주)와일드캣 | Shoes for infant |
KR101345696B1 (en) * | 2012-01-12 | 2013-12-30 | (주)와일드캣 | House shoes for baby |
KR101669247B1 (en) * | 2014-12-26 | 2016-11-09 | 주식회사 새김어페럴 | Socks shoes for infant |
KR101804920B1 (en) | 2017-02-22 | 2017-12-05 | 주식회사 꼬무신 | Socks-typed shoes and manufacturing method therefor |
JP2024005992A (en) * | 2022-06-30 | 2024-01-17 | 株式会社アシックス | Product information providing device for shoes and product information providing method for shoes |
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Publication number | Publication date |
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EP2614738A1 (en) | 2013-07-17 |
EP2614738A4 (en) | 2017-04-12 |
CN103025184A (en) | 2013-04-03 |
KR101031972B1 (en) | 2011-04-29 |
WO2012033263A1 (en) | 2012-03-15 |
ES2746186T3 (en) | 2020-03-05 |
EP2614738B1 (en) | 2019-06-19 |
JP2013536749A (en) | 2013-09-26 |
JP5733542B2 (en) | 2015-06-10 |
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