CN104565013B - Torque amplifier for damper - Google Patents
Torque amplifier for damper Download PDFInfo
- Publication number
- CN104565013B CN104565013B CN201310502514.2A CN201310502514A CN104565013B CN 104565013 B CN104565013 B CN 104565013B CN 201310502514 A CN201310502514 A CN 201310502514A CN 104565013 B CN104565013 B CN 104565013B
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- CN
- China
- Prior art keywords
- pedestal
- damper
- rotating shaft
- connecting shaft
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The invention provides a torque amplifier for a damper. A damper and a torque amplifier are positioned in an accommodating space inside a base of a seat body; a rotating shaft penetrates through one side of the accommodating space and is provided with a connection part; at least two accommodating slots which are communicated to the inner accommodating space are formed in the actuation part on the other side of the connection part; an annular tooth part penetrating into the accommodating space is arranged on one side of the connecting shaft of the torque amplifier, and at least two planet gears positioned in the accommodating slots are engaged on the annular tooth part; each planet gear is engaged on an annular tooth slot in the inner wall surface of the base; and an axial rod which is arranged in the perforation of a damping part of the damper in a penetrating manner is arranged in the center, on the opposite side of the annular tooth part, of the connecting shaft. When the rotating shaft rotates, the actuation part can be used for pushing the planet gears to engage and drive the annular tooth part, the connecting shaft can simultaneously rotate according to a preset gear ratio, and the connecting shaft is linked with the damping part, so that the damper can achieve the effect of steppless multiple torque amplification.
Description
Technical field
The invention provides a kind of damper torsional force amplifier, especially the base interior of pedestal for be positioned with antivibrator and
Torsion amplifier, and rotating shaft is equipped with pedestal side, just can be driven in torsion amplifier according to predetermined gear ratio by rotating shaft
Rotate, be aided with antivibrator and may achieve the effect that stepless multiple amplifies torsion.
Background technology
Press, now many electronic installations（Such as computer screen foot rest, notebook computer screen, liquid crystal display）Or day
Regular supplies（Such as garbage can cover, toilet lid）Will be using to rotating assembly（Hinge）, and make electronic installation or articles for daily use in
The rotation that the lid of the rotating assembly institute pivot joint on body is stabilized, and rotating assembly typically all can reduce it using antivibrator
The speed of rotation slowly open and close or the slow effect for dropping to be reached, to avoid directly being struck against on body because lid rotary speed is too fast
Caused moment resilience is hurted sb.'s feelings, the problem of structural deterioration and noise.
Furthermore, the rotating assembly of electronic installation or articles for daily use all can in order to be able to provide the enough structural support strength of lid
The antivibrator exported using big torsion, has preferably structural stability when rotating lid, and the antivibrator of different types is then
Different structure and assembling mode are had, the volume that only antivibrator of existing big torsion output integrally takes is larger with space,
The space for being available for rotating assembly to assemble in electronic installation or articles for daily use is set to be subject to certain restriction, if using the low torsion of tool
The antivibrator of power output, though it can improve occupancy volume and problem derived from space, this kind of antivibrator is confined to size
Require, therefore the torque value of antivibrator is less, and must be in series with multiple antivibrator ability in the case of assembly space deficiency
The output of high torsion is reached, thus the setting quantity for causing antivibrator is improved with cost, really belongs to a fly in the ointment, institute
With how to overcome the damper volume of big torsion output larger and low torsion output the problem that must connect of antivibrator, just for
It is engaged in the key point that this journey dealer desires most ardently redesign.
Therefore, inventor, using upper problem and disappearance, is to collect related data via commenting in many ways in view of known antivibrator
Estimate and consider, and constantly studied and modification using the experience of research and development for many years for engaging in the industry, the beginning designs this kind of antivibrator and turns round
Power amplifier invention patent.
The content of the invention
It is an object of the invention to provide a kind of damper torsional force amplifier, to improve defect present in known technology.
For achieving the above object, damper torsional force amplifier of the invention, includes pedestal, antivibrator and torsion and amplifies
Device, wherein：
The base interior accommodation space that pedestal has is to be positioned with antivibrator and torsion amplifier, and in accommodation space side
Place is equipped with rotating shaft, and is, with connecting portion, and to be provided with least two relative to cuing open on the Actuator Division at the another side of connecting portion in rotating shaft
The individual inside that is communicated to places the storage tank in space, is provided with the connecting shaft side that another torsion amplifier has and penetrates in placing space
Interior circular tooth part, is engaged with least two planetary gears being located in the storage tank of Actuator Division, and each planet tooth on its circular tooth part
Take turns on the ring-type teeth groove to be engaged at base internal wall face, but connecting shaft is provided with relative to the another side centre of circular tooth part and is arranged in resistance
Axostylus axostyle in the damper portion perforation of Buddhist nun's device, when the spindle is rotated, its Actuator Division will promote planetary gear engagement to drive in ring tooth
Portion make connecting shaft according to predetermined gear ratio with while rotate, and damper portion be linked in by connecting shaft be aided with antivibrator and may achieve nothing
Segmentation multiple amplifies the effect of torsion.
The damper torsional force amplifier of the present invention is to can be applicable on computer screen foot rest, and by the supporting band on body
Moving the connecting portion in pedestal makes rotating shaft in a rotation, and its Actuator Division will promote the planetary gear in torsion amplifier, and because of row
Star gear will not be fastened with the curved arc face at the side internal face of storage tank two, just can be by planetary gear along base internal wall face
Ring-type teeth groove in one rotate, and engage drive enable on circular tooth part connecting shaft interlock antivibrator damper portion with while
Rotate, you can by damper portion there is predetermined damping value to reduce the speed of its rotation, and using torsion amplifier according to predetermined tooth
Wheel than amplifying torsion being aided with antivibrator multiple, and then reach stepless slowly open and close or slow drop rotation adjustment effectiveness.
Description of the drawings
Fig. 1 is the stereo appearance figure of the present invention.
Fig. 2 is the three-dimensional exploded view of the present invention.
Fig. 3 is the three-dimensional exploded view at another visual angle of the invention.
Fig. 4 is the sectional axonometric drawing of the present invention.
Fig. 5 is the side cutaway view when present invention is used.
Fig. 6 is the stereo appearance figure of present pre-ferred embodiments.
Primary clustering symbol description in accompanying drawing：
1 pedestal, 10 accommodation spaces, 101 axis holes, 11 pedestals, 111 ring-type teeth groove, 112 caulking grooves, 113 standing block holes, 114 determine
Position portion, 1141 through holes, 115 fixation kits, 12 rotating shafts, 120 place space, 1201 pivoted holes, 121 connecting portions, 122 Actuator Divisions,
1221 supporting surfaces, 123 storage tanks, 1231 curved arc faces, 1232 stop parts, 13 enclosing covers, 131 embedding posts；
2 antivibrators, 20 perforation, 21 axle beds, 211 buckles, 22 damper portions, 23 docking sections, 231 blocked blocks；
3 torsion amplifiers, 31 connecting shafts, 311 circular tooth parts, 3111 locating dowels, 3112 joint surfaces, 312 axostylus axostyles, 313 buckles
Groove, 32 planetary gears, 321 projections；
4 bodies, 41 substrates, 411 axle portions, 412 screws, 42 supports, 421 engaging holes.
Specific embodiment
The technology used in the present invention means and its construction, with reference to draw and presently preferred embodiments of the present invention elaborate its
Construction is as follows with function, is understood completely with profit.
Refer to shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, stereo appearance figure respectively of the invention, three-dimensional exploded view, another regard
The three-dimensional exploded view and sectional axonometric drawing at angle, can be seen that by figure, and the present invention is to include pedestal 1, antivibrator 2 and torsion
Amplifier 3, therefore just the main member and feature of the present invention is described in detail as after, wherein：
The pedestal 1 is, with hollow pedestal 11, and to be internally formed in pedestal 11 and be available for antivibrator 2 and torsion amplifier
The accommodation space 10 of 3 positioning, and it is equipped with the formation activity of rotating shaft 12 in the axis hole 101 formed at the side of accommodation space 10
Pivot joint, and the internal face of accommodation space 10 of pedestal 11 adjacent at rotating shaft 12 to be provided with ring-type teeth groove 111, and in ring-type teeth groove
111 are provided with least one caulking groove 112 relative to inwardly cuing open at the another side opening internal face of axis hole 101, and positioned at the outside of caulking groove 112
Place is provided with plural standing block hole 113, and the location division 114 of tool through hole 1141 is provided with the side of 11 bottom of pedestal two；Separately, pedestal 11
Standing block hole is embedded in relative at the another side opening of axis hole 101 to be combined with an enclosing cover 13, and being provided with the surface of enclosing cover 13
Enclosing cover 13 is set to be covered on the plural embedding post 131 that the combined outside of pedestal 11 is integrally formed in 113.
Furthermore, be at the side of rotating shaft 12 be piercing at the axis hole 101 of pedestal 11 in a vacant state connecting portion
121, and relative to being provided with Actuator Division 122 at the another side of connecting portion 121, and the inside of Actuator Division 122 of rotating shaft 12 is to be axially formed
Space 120 is placed, and be axially arranged with pivoted hole 1201, and start towards connecting portion 121 at the bottom center of space 120 in placing
Portion 122 is held in axis hole 101 adjacent to being to be formed with the supporting surface 1221 of inside turnover at rotating shaft 12 by supporting surface 1221
Block positioning is formed at edge；Additionally, being provided with least two equidistant annular arrangements and being communicated to cut open on the Actuator Division 122 of rotating shaft 12
The storage tank 123 in space 120 is placed, the curved arc face 1231 of recess is formed with its side internal face of storage tank 123 2, and respectively
The stop part 1232 of turnover segment difference shape is all formed with the inner side of curved arc face 1231.
The antivibrator 2 is, with axle bed 21, at least one buckle 211 to be provided with outside its axle bed 21, and inside axle bed 21
The damper portion 22 of centre tool perforation 20 is provided with, and the docking section 23 for being positioned with lid shape is combined at the side of damper portion 22,
The blocked block 231 of at least one protrusion is provided with then at the surface of docking section 23, and antivibrator 2 is preferably implemented to hinder for an oil-filling type
Buddhist nun's device, and have the predetermined fluid of tool damping value in the internal reservoir of antivibrator 2, and the axle bed 21 is provided with plural side with damper portion 22
Wing plate（Not shown in figure）, just by the docking section 23 of antivibrator 2 damper portion 22 can be driven side wing is pushed in interior in a rotation
The predetermined fluid in portion and there is the effect of damping, but when practical application, damper portion 22 also can for torsion spring, complex elastic reed, rub
The group structure such as brush assembly is formed, and the species because of antivibrator 2 is many with pattern, also can set according to actual demand or structure different change
Meter.
The torsion amplifier 3 is to include connecting shaft 31 and at least two planetary gears 32, and at the side of connecting shaft 31
Circular tooth part 311 is provided with, its centre of circular tooth part 311 is axially formed the locating dowel 3111 of protrusion, and circular tooth part 311 adjacent to even
It is formed with longitudinal joint surface 3112 at spindle 31 outwardly, and connecting shaft 31 is court relative to the another side centre of circular tooth part 311
Outer extension is provided with axostylus axostyle 312, and in axostylus axostyle 312 adjacent to being arranged with least one buckle groove 313, and connecting shaft at connecting shaft 31
It is the planetary gear 32 for being engaged with least two equidistant annular arrangements on 31 circular tooth part 311, and in the side of planetary gear 32 2
Projection 321 has all been axially formed at centre.
When the present invention is in assembling, first torsion amplifier 3 is made to be contained in the accommodation space 10 of the pedestal 11 of pedestal 1
Planetary gear 32 is respectively implanted and in corresponding storage tank 123 in rotating shaft 12, and is engaged in the accommodation space 10 of pedestal 11
On ring-type teeth groove 111 at wall, then the circular tooth part 311 of connecting shaft 31 is penetrated and positioned at the Actuator Division of rotating shaft 12 for axial direction
122 place in space 120, and its locating dowel 3111 will axially penetrate the formation activity pivot joint in pivoted hole 1201, and make ring
Teeth portion 311 is intermeshed with two planetary gears 32, and axle to be connected 31 is pushed into positioning, just can be by the side of planetary gear 32 2
Projection 321 is held in respectively at the internal face of storage tank 123 and is formed on the joint surface 3112 of connecting shaft 31 block positioning, while by
The circular tooth part 311 of connecting shaft 31, planetary gear 32 coordinate 111 groups of composition planetary gears of ring-type teeth groove of pedestal 11.
Continuous is to be contained in the accommodation space 10 of pedestal 11 by antivibrator 2, and is assembled with torsion amplifier 3, its company
The axostylus axostyle 312 of spindle 31 will axially be arranged in the perforation 20 of damper portion 22 and be combined into one, and make the card of docking section 23
Hold block 231 to be embedded in connecting shaft 31 in corresponding buckle groove 313, just can be linked in docking section 23 by connecting shaft 31 makes damper portion
22 can with while rotate, and during antivibrator 2 is pushed, the buckle 211 that can make axle bed 21 is axially embedded in pedestal 11
In a positioning in caulking groove 112 at the internal face of accommodation space 10, and coordinate the guiding of caulking groove 112 and spacing work using buckle 211
With making axle bed 21 not produce axial-rotation, then the embedding post 131 of enclosing cover 13 is embedded in into respectively corresponding locator card on pedestal 11
In hole 113, enclosing cover 13 is set to be covered on firm at the another side opening of accommodation space 10 of pedestal 11 being combined into one.
Please refer to shown in Fig. 2, Fig. 3, Fig. 5, Fig. 6, three-dimensional exploded view, the solid at another visual angle respectively of the invention
The stereo appearance figure of exploded view, side cutaway view when using and preferred embodiment, by figure it can be seen that, the resistance of the present invention
Buddhist nun's device torsion amplifier is preferably implemented as being applied on All in One computer screen foot rests, but when practical application, also may be used
Be applied to the upper lid of notebook computer screen, liquid crystal display, scanner, photocopier and multi-function peripheral, garbage can cover or
Other tool throw or spinfunction device or mechanism on use.
If however, when as a example by being applied on All in One computer screen foot rests, its substrate having in body 4
Axle portion 411 at 41 2 sides is all provided with substrate 41 to be articulated with the support 42 of a Jiong shape positioned at the outside of axle portion 411
Plural screw 412, and the end of support 42 2 is provided with relative engaging hole 421, you can two pedestals 1 are respectively positioned in into phase on substrate 41
Adjacent to the position of axle portion 411, and the connecting portion 121 of rotating shaft 12 is set to penetrate the interior formation inlay card of the corresponding engaging hole 421 on support 42
Fixed, pedestal 11 is combined and is positioned on substrate 41 by the fixation kit 115 worn in the through hole 1141 for recycling location division 114,
And fixation kit 115 is preferably implemented be screw, but when practical application, also can be solid for a rivet, fixing bolt or other tools
The component for determining function carrys out equivalence enforcement, just fixation kit 115 can be penetrated in the through hole 1141 of location division 114, then be screwed in
Make pedestal 1 to be combined into one using interlocking fixed form with body 4 in corresponding screw 412 on substrate 41, guaranteed with this
Overall structural stability.
When the present invention is when using, first pull support 42 on the substrate 41 of body 4 using axle portion 411 be in one as axle center
Angle turn, its support 42 will drive the connecting portion 121 in pedestal 1 enable rotating shaft 12 with while rotate, and by start
Portion 122 promotes two planetary gears 32 in torsion amplifier 3, and because planetary gear 32 and storage tank 123 curved arc face 1231 it
Between will not be fastened, so enable planetary gear 32 along the ring-type teeth groove 111 at the internal face of pedestal 11 in a rotation, just
Can engage by planetary gear 32 drive enable on circular tooth part 311 connecting shaft 31 with while rotate, and make connecting shaft
31 buckle groove 313 and the mutual inlay card of blocked block 231 of the docking section 23 of antivibrator 2, then docking section 23 is linked in by connecting shaft 31
Enable damper portion 22 with while rotate, you can through damper portion 22 coordinate axle bed 21 have predetermined damping value come reduce its rotation
The speed for turning, and it is aided with the multiple of antivibrator 2 amplification torsion according to predetermined gear ratio using torsion amplifier 3, and then reach this
The stepless of support 42 of body 4 is slowly opened and closed or the slow effectiveness for dropping rotation adjustment.
The present invention be for pedestal 1 the interior space 10 of pedestal 11 to be positioned with antivibrator 2 and torsion amplifier 3,
And it is equipped with rotating shaft 12 at the side of accommodation space 10, and be with connecting portion 121, and relative to connecting portion 121 in rotating shaft 12
Cut open on Actuator Division 122 at another side and be provided with least two and be communicated to the storage tank 123 that inside places space 120, another torsion amplifies
It is provided with the side of connecting shaft 31 of device 3 and penetrates in the circular tooth part 311 for placing space 120, on its circular tooth part 311 at least two is engaged with
The individual planetary gear 32 in storage tank 123, and each planetary gear 32 is to be engaged in the ring-type teeth groove at the internal face of pedestal 11
On 111, and connecting shaft 31 is provided with relative to the another side centre of circular tooth part 311 and is arranged in the damper portion 22 of antivibrator 2 perforation 20
Axostylus axostyle 312, when the input of rotating shaft 12 connecting portion 121 rotation 1/4 enclose when, the planetary gear 32 of torsion amplifier 3 can be promoted
Engagement drive in circular tooth part 311 enable connecting shaft 31 according to predetermined gear ratio with while rotate, and interlocked by connecting shaft 31
Enclose in the rotation of damper portion 22 1, you can through damper portion 22 there is predetermined damping value to reduce the speed of its rotation, this kind of torsion amplifies
Device 3 can be aided with antivibrator 2 in limited space and reach multiple amplification torsion using planetary gears gear ratio series damped device 2
The effect of power, to reduce setting quantity and cost needed for multiple antivibrators 2 are connected.
Above-mentioned detailed description is to illustrate that only the embodiment is not used for one kind preferably possible embodiments of the invention
With limit the present invention claim, it is all other without departing from completed under disclosed technical spirit equalization become
Change and modification change, in being intended to be limited solely by the scope of the claims that the present invention is covered.
Claims (8)
1. a kind of damper torsional force amplifier, includes pedestal, antivibrator and torsion amplifier, wherein：
The base interior that the pedestal has is to be formed with the accommodation space for being available for antivibrator and torsion amplifier positioning, and in accommodating
It is equipped with rotating shaft at the side of space, and positioned at accommodation space internal face adjacent to being provided with ring-type teeth groove at rotating shaft, and be in rotating shaft
With connecting portion, and relative to being provided with Actuator Division at the another side of connecting portion, and axially it is formed with Actuator Division inside and places space,
And be provided with least two and be communicated to the storage tank placed in space to cut open on Actuator Division；
The antivibrator is, with an axle bed, and to be provided with pertusate damper portion in axle bed；
The torsion amplifier is, with connecting shaft, and the ring tooth placed in space penetrated in rotating shaft to be provided with connecting shaft side
Portion, is engaged with least two and is located in storage tank and is available for Actuator Division promotion to make connecting shaft according to predetermined gear ratio on its circular tooth part
The planetary gear of rotation, and each planetary gear is to be engaged on the ring-type teeth groove of pedestal, and connecting shaft is relative to the another of circular tooth part
Side centre is provided with the perforation for be arranged in damper portion the axostylus axostyle for being aided with damper torsional force amplification.
2. damper torsional force amplifier as claimed in claim 1, wherein, it is located at accommodation space side on the pedestal of the pedestal
To be formed with the axis hole for being available for the connecting portion of rotating shaft to pass, and inwardly transfer adjacent to being formed with rotating shaft in the Actuator Division of rotating shaft
And be held at axis hole inner edge and form the supporting surface of block positioning.
3. damper torsional force amplifier as claimed in claim 2, wherein, the pedestal accommodation space of the pedestal is another relative to axis hole
At least one caulking groove is provided with inwardly to cut open at side opening internal face, and enclosing cover is combined with the another side opening of accommodation space, and
The axle bed outside of antivibrator is to be provided with the buckle being axially embedded in caulking groove.
4. damper torsional force amplifier as claimed in claim 3, wherein, caulking groove outside is located on the pedestal of the pedestal to set
There is plural standing block hole, and the plural embedding post being embedded in standing block hole is provided with outer cap surface.
5. damper torsional force amplifier as claimed in claim 1, wherein, it is logical to be provided with tool at the side of base bottom two of the pedestal
The location division in hole, and fixation kit is all equipped with through hole, and fixation kit is a screw, rivet or fixing bolt.
6. damper torsional force amplifier as claimed in claim 1, wherein, the space bottom centre that places of the pedestal rotating shaft is
Pivoted hole, and the circular tooth part centre of torsion amplifier connecting shaft are axially arranged with towards connecting portion to penetrate in pivot to be axially formed
Connect the locating dowel of formation activity pivot joint in hole, and circular tooth part is adjacent to being formed with outwardly longitudinal joint surface at connecting shaft, then at
The side centre of planetary gear two is axially formed at the storage tank internal face for being held in pedestal respectively and on the joint surface of connecting shaft
Form the projection of block positioning.
7. damper torsional force amplifier as claimed in claim 1, wherein, the side of storage tank two on the Actuator Division of the pedestal rotating shaft
It is the stop part that turnover segment difference shape is all formed with the curved arc face for being formed with recess, and each curved arc face inner side at internal face.
8. damper torsional force amplifier as claimed in claim 1, wherein, it is located at damper portion side on the axle bed of the antivibrator
It is with reference to being positioned with docking section, and to be provided with the blocked block of at least one protrusion in docking section surface, and the axle of torsion amplifier
Bar is adjacent to being to be arranged with to be available for blocked block inlay card buckle groove in the inner at connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502514.2A CN104565013B (en) | 2013-10-23 | 2013-10-23 | Torque amplifier for damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310502514.2A CN104565013B (en) | 2013-10-23 | 2013-10-23 | Torque amplifier for damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104565013A CN104565013A (en) | 2015-04-29 |
| CN104565013B true CN104565013B (en) | 2017-05-10 |
Family
ID=53081841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310502514.2A Expired - Fee Related CN104565013B (en) | 2013-10-23 | 2013-10-23 | Torque amplifier for damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565013B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107815826A (en) * | 2016-09-13 | 2018-03-20 | 青岛海尔洗衣机有限公司 | Gear type damper, cover plate installation structure and washing machine |
| CN113074182B (en) * | 2021-03-04 | 2022-06-24 | 荣耀终端有限公司 | Rotating shaft and equipment provided with same |
| CN114251350B (en) * | 2021-12-14 | 2022-11-01 | 武汉华星光电半导体显示技术有限公司 | Connection structure and foldable terminal device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269733A (en) * | 1992-05-18 | 1993-12-14 | Snap-On Tools Corporation | Power tool plastic gear train |
| JP2005083432A (en) * | 2003-09-05 | 2005-03-31 | Nidec Copal Corp | Electrically-powered hinge unit with motor |
| CN201053443Y (en) * | 2007-06-25 | 2008-04-30 | 浙江玮硕科技有限公司 | Automatic and hand-operated rotation shaft |
| CN202140417U (en) * | 2011-01-17 | 2012-02-08 | 昆山万禾精密电子有限公司 | Hinge structure capable of automatically and slowly opening or closing |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003130111A (en) * | 2001-10-23 | 2003-05-08 | Tok Bearing Co Ltd | Revolution speed controller |
-
2013
- 2013-10-23 CN CN201310502514.2A patent/CN104565013B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5269733A (en) * | 1992-05-18 | 1993-12-14 | Snap-On Tools Corporation | Power tool plastic gear train |
| JP2005083432A (en) * | 2003-09-05 | 2005-03-31 | Nidec Copal Corp | Electrically-powered hinge unit with motor |
| CN201053443Y (en) * | 2007-06-25 | 2008-04-30 | 浙江玮硕科技有限公司 | Automatic and hand-operated rotation shaft |
| CN202140417U (en) * | 2011-01-17 | 2012-02-08 | 昆山万禾精密电子有限公司 | Hinge structure capable of automatically and slowly opening or closing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104565013A (en) | 2015-04-29 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170510 Termination date: 20191023 |
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| CF01 | Termination of patent right due to non-payment of annual fee |