CA1122787A - Securement of a flexible sheet to a supporting rod - Google Patents
Securement of a flexible sheet to a supporting rodInfo
- Publication number
- CA1122787A CA1122787A CA384,863A CA384863A CA1122787A CA 1122787 A CA1122787 A CA 1122787A CA 384863 A CA384863 A CA 384863A CA 1122787 A CA1122787 A CA 1122787A
- Authority
- CA
- Canada
- Prior art keywords
- section
- base plate
- tarpaulin
- plate
- securement
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D39/00—Wagon or like covers; Tarpaulins; Movable or foldable roofs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/02—Covering of load
- B60P7/04—Covering of load by tarpaulins or like flexible members
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A tarpaulin securement member is disclosed for securing a tarpaulin sheet to a supporting rod. The member comprises a base member integral with a concave seat, a top plate being fixedly secured to the base plate member and sandwiching the tarpaulin therebetween. In the preferred embodiment, the top plate member is provided with a cavity or recess which facilitates the threading of strap fasteners between the tarpaulin and the base mamber, the strap members being preferred as clamping means for securement of the seat section of the base member to a supporting rod. In another preferred embodiment the base member is cast from malleable material as an integral single-piece unit inclusive protrusions having the shape of rivet stems. The invention simplifies the manufacture while reducing susceptibility of the tar-paulin to leak at its joints with the supporting rod. By the same token, the securement is strong and reliable in operation.
A tarpaulin securement member is disclosed for securing a tarpaulin sheet to a supporting rod. The member comprises a base member integral with a concave seat, a top plate being fixedly secured to the base plate member and sandwiching the tarpaulin therebetween. In the preferred embodiment, the top plate member is provided with a cavity or recess which facilitates the threading of strap fasteners between the tarpaulin and the base mamber, the strap members being preferred as clamping means for securement of the seat section of the base member to a supporting rod. In another preferred embodiment the base member is cast from malleable material as an integral single-piece unit inclusive protrusions having the shape of rivet stems. The invention simplifies the manufacture while reducing susceptibility of the tar-paulin to leak at its joints with the supporting rod. By the same token, the securement is strong and reliable in operation.
Description
l~ZZ787 The present invention relates to securement members or fasteners for securing a normally flat and flexible sheet, such as a truck box tarpaulin, to a supporting rod.
Tarpaulin cover systems used in trucks or the like are known to be comprised of a heavy tarpaulin and a supporting structure, usually formed by a system of tubular rods to which the tarpaulin sheet is permanently secured. The most usual way of securing a tarpaulin to a supporting rod is by way of a cloth tube made from the same material as the tarpaulin sheet, through which the respective supporting rod is threaded.
The arrangement is cumbersome to produce since the production of the tube itself is relatively time consuming and the stitching to the tarpaulin sheet is a relatively lengthy operation. Moreover, the stitch itself usually reduces the waterproof quality of the tarpaulin along the stitch line.
Another known embodiment is that of securement of the tarpaulin to the supporting rod by rings or by hooks, an arrangement which is not too reliable and which, moreover, subjects the tarpaulin to undue local stresses. Examples of this arrangement can be seen in U.S. patents 4,189,178 issued February 19, 1980 (Cramaro); 3,664,539 issued May 23, 1972, or 4,162,100 (Muscillo) issued July 24, 1979.
It is an object of the present invention to provide an improvement in the art of securement of a flat sheet such as a tarpaulin or another pliable sheet to a supporting structure in a fast and efficient way. AnOther object of the present in-vention is to retain, on securement of the connecting member to a tarpaulin or the like, a vitually unhindered waterproof quality of the tarpaulin.
In general terms, the present inventions provides, for use in a securement member for securing a normally flat and flexible sheet to a rod; a base plate member having a first flat surface section normally facing a sheet and a second flat surfac section opposite to said first flat surface section; concavely shaped seat means projecting from the second surface section and rigidly secured to the base plate member, said seat means having cross-sectional configuration complementary with that of a rod to which the sheet is to be secured; fastening means for fastening a sheet to said first flat surface section to `- llZZ787 render said first flat surface coincident with a part of one surface of the sheet; and clamping means for fixedly securing the seat means to a rod to thus fixedly secure said base plate ' to a respective rod.
- The present invention can also be broadly defined as a combination of a tarpaulin for covering a truck box, a plurality of securement members fixedly attached to said tarpaulin and each adapted to secure a respective section of the tarpaulin to a supporting rod, each of said secure~ent members comprising: a relatively rigid first plate-like member having a first surface facing one surface of the respective section of the tarpaulin and being generally coincident with same; fastening means fixedly securing said first plate-like member to said tarpaulin; seat means protruding from a second surface of said first plate-like member, generally integral with same and including a concavely shaped portion complementary with a respective supporting rod; clamping member engagement means adapted to be engaged by a clamping member to clanp the securement member to a respective supporting rod by firmly pressing said concavely shaped portion against the surface of a respective rod.
The invention will now be described with reference to the accompanying drawings whereing:
Fig. 1 is an exploded view of one embodiment of the present invention, partly broken away;
Fig. 2 is a perspective view showing the arrangement of Fig. 1 in assembled state;
Fig. 3 is section III-III of Fig. 2;
Fig. 4 is a perspective view showing a modification of the base plate of the assembly as shown in Fig. l; and Fig. 5 is an exploded view similar to that of Fig. 1 but showing a still further embodiment of the invention.
; Reference numeral _ in Fig. 1 designates a support-ing tubular rod to which a section o~ a flexible tarpaulin sheet 11 is to be secured. The securement is effected by a securement member, the structure and function of which will be readily apparent from Figs. 1 and 2. The securement member 7~7 f the embodiment shown in Figs. 1 and 2 is comprised of a Dase plate member 12 the structural configuration of which can also be understood by comparing the arrangement of Fig.
1 with that of Fig. 4.
The base plate member is stamped out of a metal sheet having the thickness of approximately 2 mm. It may also be produced by casting from an appropriate material or by molding.
It has a first flat surface section 13 facing the sheet 11 and a second surface section 14 facing the rod 10. The rectangular plate from which the base plate member 12 is made is provided with four transverse cuts 15, 16, 17 and 18. The transverse cuts 15 - 18 allow the bending of intermediate portions 19, 20 downwardly to form two seat members whose concave surface, together with a central portion 21 combine to form a concave seat complementary with the surface of the rod 10. When shaped as in Fig. 1, it can be seen that the first surface section 13, when viewed in plan, has the shape of "I" comprised of a stem section which is coincident with the central portion 21 and of two flange sections 22, 23.
A rectangular recess is thus formed at each side of the plate, each recess being limited by the respective side edge of the central portion 21 and by the respective pair of transverse cuts 15 - 16; 17 - 18.
Turning now briefly to Fig. 4 showing an obvious modification of the base plate member 12 of Fig. 1, the same reference numerals are used to designate the corresponding parts. The base plate member of Fig. 2 also has a first surface section 13, a second surface section 14, an intermediate portion 19 and flange sections 22, 23. The shape of "I", however, is distorted in the embodiment of Fig. 4 since there is a total of four transverse cuts 24 - 25 - 26 - 27; 29, 30, 31, 32; at each side of the plate, resulting in two cutouts 32 - 33; 34 - 35 at each side of the base plate member resulting in four downwardly bent intermediate portions 36 - 37; 38 - 39; forming a function-al counterpart of the intermediate portion 19, 20 of Fig. 1.
As in the embodiment of Fig. 1, the intermediate portions 36 - 39 combine with the central portion 21 to form a seat complementary with a rod member such as rod 10 (not shown in Fig. 4).
Both the embodiment of Fig. 1 and that of Fig. 4 can be thus defined also as including two opposite margin portions extending along the plate and each interrupted by transverse cuts. The "margin portions" are not referred to with a partic-ular reference number but are shown by shading in broken lines in the embodiment of Fig. 4.
llZZ787 In the shown embodiment, such fastening means is formed by a top plate 46, whose contour in plan is preferably identical with the rectangular layout of the base plate member 12. The plate ~6 is rivetted to the base plate 12 by rivets 47, 48, 49, 50, with the tarpaulin 11 sandwiched therebetween (see Fig. 2).
If the "clamping means" is of the type of straps as shown in the embodiments of Figs. 1 and 4, the top plate 46 has to be provided with a depression which in the embodiment of Fig. 1 is shown by way of a dome-shaped projection 51 it being understood that the corresponding protrusion is in the bottom face of the plate 46 and being marked with reference numeral 52. As will be appreciated from Fig. 2, the depression 52 generally overlaps the area of the central portion 21 thus allowing the threading of the fastener straps 40, 41 between the central portion 21 and the tarpaulin 11 which is sandwiched between the two plates.
It is obvious that if the "clamping means"iis of the type different from the straps 40, 41, for instance a locking clamp or lever secured to the free ends of intermediate portions 19, 20, then no space is required between the top surface of the base plate member 12 and the bottom surface of the top plate 46 and the top plate 46 can, accordingly, be flat.
In production, the base plate member 12 is first secured to the tarpaulin 11 by sandwiching the tarpaulin between the two plates and by rivetting same together at strategic locations of a tarpaulin. The fixed securement of the thus arranged secure-ment member to the rod 10 can then be effected by unskilled labour, simply by threading the respective strap fasteners 40, 41 over the convex surface of the seat forming elements, such convex portions therefore forming a preferred embodiment of what is also referred to in general terms as "clamping member engage-ment means".
It was found out that with the rivetting as proposed, the waterproof capability of the tarpaulin is virtually unchanged.
The present invention, therefore, provides not only a simplified production of the overall arrangement, but also improves the quality of the final product of a tarpaulin secured to a rod.
27~
The embodiment shown in Fig. 5 differs from that of Fig. 1 in several details. First, both the top plate 53 and the base 54 are produced by casting from a malleable material, in the shown embodiment, from an alloy of aluminum and zinc known under the name of KORLOY 2570 (TM).
The arrangement of Fig. 5 is designed to be provided with merely a single securement strap 55. The embodiment - shown in Fig. 5 has the top plate 53 provided with two openings or passages 56 while the top surface of the base 54 has two protrusions 57 cast integral with the base 54 and having the cylindric shape of a rivet stem, the protrusions 57 are of the size and mutual spacing enabling the inserting of the protrusions 57 through the respective passages 56. The length of the protrusions 57 is in excess of the thickness of the top plate 53. The shown arrangement thus facilitates the manufacture and reduces manufacturing costs by avoiding the need for place-ment of separate rivets which would have to be passed through the respective holes as shown in Fig. 1.
The lower surface 58 of the top plate 53 is provided with a shallow groove or recess 59 extending ~
transversely of the top plate 53. ~n an assembled state, the recess 59 is above and in register with a convex top face portion 60 of the base 54 which is slightly below the plane of the rest of the top face of the base 54, to enable the passage of the securement strap 55 when the base 54 with the sheet 11 sandwiched between the base and the top plate 53 is to be secured to the rod 10. The recess 59, and the portion therefore, present a functional counterpart of the cavity formed by the dome-shaped projection 51 of Fig. 1.
The embodiment having the protrusions 57 integral with the base 54 is preferred even though it will be readily appreciated that a reversed arrangement whereby the protrusions would be integral with the top plate 53 is readily convceivable. Similarly, it may not be necessary to produce both the top plate 53 and the base 54 from malleable metallic material. For instance, the producing J
.` llZ2787 of the top plate 53 in Fig. 5 from a suitable plastic material is readily conceivable. Furthermore, the pro-duction of the base 54 in the shape generally identical with that of the base in Fig. 1 is believed to be the best solution from the standpoint of the need of the respective material from which the base is formed, which is not to say that the base could not be shaped otherwise, for instance by way of a block merely having a top surface facing the tarpaulin 11 and a continuous concave surface at the bottom.
The above embodiments are indicative of just a few of many modifications of the present invention. Many other changes, both in structure and in material, may be effected, departing to a greater or lesser degree, from the embodiments described above without departing from the scope of the present invention as recited in the accompanying claims.
Also, it will be appreciated that the present invention, while particularly useful in the art of truck tarpaulins, can be applied in many different fields, for instance, in the art of tarpaulin covered shelters or plastic sheets supported by rigid structures, in the art of tents, of greenhouse wall structures or the like.
Tarpaulin cover systems used in trucks or the like are known to be comprised of a heavy tarpaulin and a supporting structure, usually formed by a system of tubular rods to which the tarpaulin sheet is permanently secured. The most usual way of securing a tarpaulin to a supporting rod is by way of a cloth tube made from the same material as the tarpaulin sheet, through which the respective supporting rod is threaded.
The arrangement is cumbersome to produce since the production of the tube itself is relatively time consuming and the stitching to the tarpaulin sheet is a relatively lengthy operation. Moreover, the stitch itself usually reduces the waterproof quality of the tarpaulin along the stitch line.
Another known embodiment is that of securement of the tarpaulin to the supporting rod by rings or by hooks, an arrangement which is not too reliable and which, moreover, subjects the tarpaulin to undue local stresses. Examples of this arrangement can be seen in U.S. patents 4,189,178 issued February 19, 1980 (Cramaro); 3,664,539 issued May 23, 1972, or 4,162,100 (Muscillo) issued July 24, 1979.
It is an object of the present invention to provide an improvement in the art of securement of a flat sheet such as a tarpaulin or another pliable sheet to a supporting structure in a fast and efficient way. AnOther object of the present in-vention is to retain, on securement of the connecting member to a tarpaulin or the like, a vitually unhindered waterproof quality of the tarpaulin.
In general terms, the present inventions provides, for use in a securement member for securing a normally flat and flexible sheet to a rod; a base plate member having a first flat surface section normally facing a sheet and a second flat surfac section opposite to said first flat surface section; concavely shaped seat means projecting from the second surface section and rigidly secured to the base plate member, said seat means having cross-sectional configuration complementary with that of a rod to which the sheet is to be secured; fastening means for fastening a sheet to said first flat surface section to `- llZZ787 render said first flat surface coincident with a part of one surface of the sheet; and clamping means for fixedly securing the seat means to a rod to thus fixedly secure said base plate ' to a respective rod.
- The present invention can also be broadly defined as a combination of a tarpaulin for covering a truck box, a plurality of securement members fixedly attached to said tarpaulin and each adapted to secure a respective section of the tarpaulin to a supporting rod, each of said secure~ent members comprising: a relatively rigid first plate-like member having a first surface facing one surface of the respective section of the tarpaulin and being generally coincident with same; fastening means fixedly securing said first plate-like member to said tarpaulin; seat means protruding from a second surface of said first plate-like member, generally integral with same and including a concavely shaped portion complementary with a respective supporting rod; clamping member engagement means adapted to be engaged by a clamping member to clanp the securement member to a respective supporting rod by firmly pressing said concavely shaped portion against the surface of a respective rod.
The invention will now be described with reference to the accompanying drawings whereing:
Fig. 1 is an exploded view of one embodiment of the present invention, partly broken away;
Fig. 2 is a perspective view showing the arrangement of Fig. 1 in assembled state;
Fig. 3 is section III-III of Fig. 2;
Fig. 4 is a perspective view showing a modification of the base plate of the assembly as shown in Fig. l; and Fig. 5 is an exploded view similar to that of Fig. 1 but showing a still further embodiment of the invention.
; Reference numeral _ in Fig. 1 designates a support-ing tubular rod to which a section o~ a flexible tarpaulin sheet 11 is to be secured. The securement is effected by a securement member, the structure and function of which will be readily apparent from Figs. 1 and 2. The securement member 7~7 f the embodiment shown in Figs. 1 and 2 is comprised of a Dase plate member 12 the structural configuration of which can also be understood by comparing the arrangement of Fig.
1 with that of Fig. 4.
The base plate member is stamped out of a metal sheet having the thickness of approximately 2 mm. It may also be produced by casting from an appropriate material or by molding.
It has a first flat surface section 13 facing the sheet 11 and a second surface section 14 facing the rod 10. The rectangular plate from which the base plate member 12 is made is provided with four transverse cuts 15, 16, 17 and 18. The transverse cuts 15 - 18 allow the bending of intermediate portions 19, 20 downwardly to form two seat members whose concave surface, together with a central portion 21 combine to form a concave seat complementary with the surface of the rod 10. When shaped as in Fig. 1, it can be seen that the first surface section 13, when viewed in plan, has the shape of "I" comprised of a stem section which is coincident with the central portion 21 and of two flange sections 22, 23.
A rectangular recess is thus formed at each side of the plate, each recess being limited by the respective side edge of the central portion 21 and by the respective pair of transverse cuts 15 - 16; 17 - 18.
Turning now briefly to Fig. 4 showing an obvious modification of the base plate member 12 of Fig. 1, the same reference numerals are used to designate the corresponding parts. The base plate member of Fig. 2 also has a first surface section 13, a second surface section 14, an intermediate portion 19 and flange sections 22, 23. The shape of "I", however, is distorted in the embodiment of Fig. 4 since there is a total of four transverse cuts 24 - 25 - 26 - 27; 29, 30, 31, 32; at each side of the plate, resulting in two cutouts 32 - 33; 34 - 35 at each side of the base plate member resulting in four downwardly bent intermediate portions 36 - 37; 38 - 39; forming a function-al counterpart of the intermediate portion 19, 20 of Fig. 1.
As in the embodiment of Fig. 1, the intermediate portions 36 - 39 combine with the central portion 21 to form a seat complementary with a rod member such as rod 10 (not shown in Fig. 4).
Both the embodiment of Fig. 1 and that of Fig. 4 can be thus defined also as including two opposite margin portions extending along the plate and each interrupted by transverse cuts. The "margin portions" are not referred to with a partic-ular reference number but are shown by shading in broken lines in the embodiment of Fig. 4.
llZZ787 In the shown embodiment, such fastening means is formed by a top plate 46, whose contour in plan is preferably identical with the rectangular layout of the base plate member 12. The plate ~6 is rivetted to the base plate 12 by rivets 47, 48, 49, 50, with the tarpaulin 11 sandwiched therebetween (see Fig. 2).
If the "clamping means" is of the type of straps as shown in the embodiments of Figs. 1 and 4, the top plate 46 has to be provided with a depression which in the embodiment of Fig. 1 is shown by way of a dome-shaped projection 51 it being understood that the corresponding protrusion is in the bottom face of the plate 46 and being marked with reference numeral 52. As will be appreciated from Fig. 2, the depression 52 generally overlaps the area of the central portion 21 thus allowing the threading of the fastener straps 40, 41 between the central portion 21 and the tarpaulin 11 which is sandwiched between the two plates.
It is obvious that if the "clamping means"iis of the type different from the straps 40, 41, for instance a locking clamp or lever secured to the free ends of intermediate portions 19, 20, then no space is required between the top surface of the base plate member 12 and the bottom surface of the top plate 46 and the top plate 46 can, accordingly, be flat.
In production, the base plate member 12 is first secured to the tarpaulin 11 by sandwiching the tarpaulin between the two plates and by rivetting same together at strategic locations of a tarpaulin. The fixed securement of the thus arranged secure-ment member to the rod 10 can then be effected by unskilled labour, simply by threading the respective strap fasteners 40, 41 over the convex surface of the seat forming elements, such convex portions therefore forming a preferred embodiment of what is also referred to in general terms as "clamping member engage-ment means".
It was found out that with the rivetting as proposed, the waterproof capability of the tarpaulin is virtually unchanged.
The present invention, therefore, provides not only a simplified production of the overall arrangement, but also improves the quality of the final product of a tarpaulin secured to a rod.
27~
The embodiment shown in Fig. 5 differs from that of Fig. 1 in several details. First, both the top plate 53 and the base 54 are produced by casting from a malleable material, in the shown embodiment, from an alloy of aluminum and zinc known under the name of KORLOY 2570 (TM).
The arrangement of Fig. 5 is designed to be provided with merely a single securement strap 55. The embodiment - shown in Fig. 5 has the top plate 53 provided with two openings or passages 56 while the top surface of the base 54 has two protrusions 57 cast integral with the base 54 and having the cylindric shape of a rivet stem, the protrusions 57 are of the size and mutual spacing enabling the inserting of the protrusions 57 through the respective passages 56. The length of the protrusions 57 is in excess of the thickness of the top plate 53. The shown arrangement thus facilitates the manufacture and reduces manufacturing costs by avoiding the need for place-ment of separate rivets which would have to be passed through the respective holes as shown in Fig. 1.
The lower surface 58 of the top plate 53 is provided with a shallow groove or recess 59 extending ~
transversely of the top plate 53. ~n an assembled state, the recess 59 is above and in register with a convex top face portion 60 of the base 54 which is slightly below the plane of the rest of the top face of the base 54, to enable the passage of the securement strap 55 when the base 54 with the sheet 11 sandwiched between the base and the top plate 53 is to be secured to the rod 10. The recess 59, and the portion therefore, present a functional counterpart of the cavity formed by the dome-shaped projection 51 of Fig. 1.
The embodiment having the protrusions 57 integral with the base 54 is preferred even though it will be readily appreciated that a reversed arrangement whereby the protrusions would be integral with the top plate 53 is readily convceivable. Similarly, it may not be necessary to produce both the top plate 53 and the base 54 from malleable metallic material. For instance, the producing J
.` llZ2787 of the top plate 53 in Fig. 5 from a suitable plastic material is readily conceivable. Furthermore, the pro-duction of the base 54 in the shape generally identical with that of the base in Fig. 1 is believed to be the best solution from the standpoint of the need of the respective material from which the base is formed, which is not to say that the base could not be shaped otherwise, for instance by way of a block merely having a top surface facing the tarpaulin 11 and a continuous concave surface at the bottom.
The above embodiments are indicative of just a few of many modifications of the present invention. Many other changes, both in structure and in material, may be effected, departing to a greater or lesser degree, from the embodiments described above without departing from the scope of the present invention as recited in the accompanying claims.
Also, it will be appreciated that the present invention, while particularly useful in the art of truck tarpaulins, can be applied in many different fields, for instance, in the art of tarpaulin covered shelters or plastic sheets supported by rigid structures, in the art of tents, of greenhouse wall structures or the like.
Claims (20)
1. For use in a securement member for securing a normally flat and flexible sheet to a rod:
a) a base plate member having a first flat surface section normally facing a sheet and a second flat surface section opposite to said first flat surface section;
b) concavely shaped seat means projecting from the second surface section and rigidly secured to the base plate member, said seat means having cross-sectional configuration complementary with that of a rod to which the sheet is to be secured;
c) fastening means for fastening a sheet to said first flat surface section to render said first flat surface section coincident with a part of one surface of the sheet; and d) clamping means for fixedly securing the seat means to a rod to thus fixedly secure said base plate to a respective rod.
a) a base plate member having a first flat surface section normally facing a sheet and a second flat surface section opposite to said first flat surface section;
b) concavely shaped seat means projecting from the second surface section and rigidly secured to the base plate member, said seat means having cross-sectional configuration complementary with that of a rod to which the sheet is to be secured;
c) fastening means for fastening a sheet to said first flat surface section to render said first flat surface section coincident with a part of one surface of the sheet; and d) clamping means for fixedly securing the seat means to a rod to thus fixedly secure said base plate to a respective rod.
2. The invention as claimed in claim 1, wherein the first flat surface of the base plate member has the contour of a flat "I" having two flange sections and a central stem section, the latter having side margin sections extending between the respective flange sections, there being a rectangular recess at each side of the stem section, each side margin section of the stem section being integral with a seat section bent away from the second surface section of said base plate member, to combine with the seat section at the other margin section of the stem section and with said stem section to form said seat means of a generally U-shaped cross-sectional configuration when viewed in a cross-section within a plane perpendicular and transverse to the stem section.
3. The invention of claim 2, wherein said base plate member and said seat means are stamped from a single, generally rectangular, metallic plate, whereby the side of surface area of each seat section corresponds to that of the respective recess.
4. The invention of claims 1 to 3, wherein said fastening means includes a plate-like top member and fasteners for fixedly securing the top member to said base plate member with a flexible sheet sandwiched therebetween.
5. The invention of claims 2 or 3, wherein said fasten-ing means is a plate-like top member and fasteners for fixedly securing the top member to said base plate member with a flexible sheet sandwiched therebetween, said top member being provided with a depression adapted to provide, on securement of the top member to said base plate member, a cavity disposed at a location proximate to said stem section.
6. The invention of claims 2 or 3, wherein said fastening means is a plate-like top member and fasteners for fixedly securing the top member to said base plate member with a flex-ible sheet sandwiched therebetween, said top member being provided with a depression adapted to provide, on securement of the top member to said base plate member, a cavity dis-posed at a location proximate to said stem section, said clamping means being strap fastener means adapted to surround a part of a respective rod, a convex exterior surface portion of a first one of the seat sections, a part of the step portion facing said cavity and a convex exterior surface portion of a second one of said seat sections, whereby the strap fastener is capable, on tightening, to effect a firm clamping of the base plate to a respective rod.
7. In combination, a tarpaulin for covering a truck box, a plurality of securement members fixedly attached to said tarpaulin and each adapted to secure a respective section of the tarpaulin to a supporting rod, each of said securement members comprising:
a) a relatively rigid first plate-like member having a first surface facing one surface of the respective section of the tarpaulin and being generally coincident with same;
b) fastening means fixedly securing said first plate-like member to said tarpaulin;
c) seat means protruding from a second surface of said first plate-like member, generally integral with same and including a concavely shaped portion complementary with a respective supporting rod;
d) clamping member engagement means adapted to be engaged by a clamping member to clamp the securement member to a respective supporting rod by firmly pressing said concavely shaped portion against the surface of a respective rod.
a) a relatively rigid first plate-like member having a first surface facing one surface of the respective section of the tarpaulin and being generally coincident with same;
b) fastening means fixedly securing said first plate-like member to said tarpaulin;
c) seat means protruding from a second surface of said first plate-like member, generally integral with same and including a concavely shaped portion complementary with a respective supporting rod;
d) clamping member engagement means adapted to be engaged by a clamping member to clamp the securement member to a respective supporting rod by firmly pressing said concavely shaped portion against the surface of a respective rod.
8. The combination of claim 7, wherein said first plate-like member is a plate member including two opposite margin portions extending along the plate, and each interrupted by transverse cuts, the part of the plate between adjacent cuts at each margin portion being a bent-away section protruding from said second surface to form a part of said seat means, whereby the first plate-like member and the seat means is an integral element including a generally planar section engaging the tarpaulin and a curved surface section forming a part of said seat means.
9. The combination of claim 8 wherein there is a pair of said cuts at each marginal portion, each cut of each pair being equidistantly spaced from a respective end of the plate, the cuts and the seat means being so disposed that a partial cutout is provided centrally of each of the margin portions, and a generally planar end section and a coplanar central section form said first flate surface.
10. The combination as claimed in claim 7, 8 or 9, wherein said fastening means is a second plate-like member fixedly secured to said first plate-like member with said section of the tarpaulin sandwiched therebetween.
11. The combination as claimed in claim 8 or 9, wherein said fastening means is a second plate-like member fixedly secured to said first plate-like member with said section of the tarpaulin sandwiched therebetween, said second plate-like member has a depression in a surface thereof facing the tar-paulin, said depression being disposed at an area overlapping said central section of said first flat surface, whereby a strap fastener can be threaded transversely between said central section and the tarpaulin and over said curved surface sections forming said seat means.
12. The invention of claim 2, wherein said base plate member and said seat means form respective parts of a single-piece product produced by casting or molding.
13. The invention of claim 12, wherein said single-piece product is made of a malleable metallic material.
14. The invention of claim 13, wherein said single-piece product includes protrusions extending from said first flat surface and having each the shape of a rivet stem.
15. The invention of claim 14, wherein said fastening means includes a plate-like top member with passages com-plementary with said protrusions, the length of said pro-trusions being in excess of the length of the respective passages, whereby the free ends of the protrusions can be passed through the passage and spread in rivet-like fashion to secure the top member to the single-piece product with a flexible sheet sandwiched therebetween.
16. The invention as claimed in claim 12, wherein said fastening means includes a plate-like top member having an inner, generally planar surface normally facing said first flat surface of the base plate member, and a depression in said inner surface having the shape of a groove extending transversely of the inner surface and providing, on secure-ment of the top member to said base plate member, a recess disposed at a location proximate to said stem section of the base plate member.
17. The invention as claimed in claim 12, wherein said fastening means includes a plate-like top member made from malleable material and having an inner, generally planar surface normally facing said first flat surface of the base plate member, a plurality of protrusions integral with and extending from said inner surface and having each the shape of a rivet stem.
18. The invention as claimed in claim 17, wherein said first flat surface section of the base plate member is pro-vided with passages complementary with said protrusions, the length of said protrusions being in excess of the length of the respective passages whereby the free ends of the protrusions can be passed through the passages and spread in rivet-like fashion to secure the top member to the base plate member with a flexible sheet sandwiched therebetween.
19. The invention as claimed in claim 18, wherein said plate-like top member has an inner, generally planar surface normally facing said first flat surface of the base plate member, and a depression in said inner surface having the shape of a groove extending transversely of the inner surface and providing, on securement of the top member to said base plate member, a recess disposed at a location proximate to said stem section of the base plate member.
20. For use in a securement member for securing a normally flat and flexible sheet to a rod:
(a) a base member having a first flat surface section normally facing the sheet; and a concavely shaped second surface section having cross-sectional configuration complementary with that of a part of a rod to which the sheet is to be secured;
(b) fastening means for fastening the sheet to said flat surface section to render said first flat surface section coincident with a part of one surface of the sheet; and (c) securement means for securing the second surface section to a rod to thus fixedly secure said base member to a respective rod.
(a) a base member having a first flat surface section normally facing the sheet; and a concavely shaped second surface section having cross-sectional configuration complementary with that of a part of a rod to which the sheet is to be secured;
(b) fastening means for fastening the sheet to said flat surface section to render said first flat surface section coincident with a part of one surface of the sheet; and (c) securement means for securing the second surface section to a rod to thus fixedly secure said base member to a respective rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA384,863A CA1122787A (en) | 1981-08-31 | 1981-08-31 | Securement of a flexible sheet to a supporting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA384,863A CA1122787A (en) | 1981-08-31 | 1981-08-31 | Securement of a flexible sheet to a supporting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1122787A true CA1122787A (en) | 1982-05-04 |
Family
ID=4120832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA384,863A Expired CA1122787A (en) | 1981-08-31 | 1981-08-31 | Securement of a flexible sheet to a supporting rod |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1122787A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466030A (en) * | 1993-11-09 | 1995-11-14 | Tuff Boy Holding, Inc. | Side loading vehicle: apparatus and method |
-
1981
- 1981-08-31 CA CA384,863A patent/CA1122787A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5466030A (en) * | 1993-11-09 | 1995-11-14 | Tuff Boy Holding, Inc. | Side loading vehicle: apparatus and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5415915A (en) | Corner reinforcement with eyelet for cloth | |
| CA1122787A (en) | Securement of a flexible sheet to a supporting rod | |
| US4275919A (en) | Suspension-type head lining arrangement for automotive vehicle and clip element for use therein | |
| US3938630A (en) | Fabricated case | |
| JPH10127310A (en) | Belt buckle for seat belt | |
| US4516297A (en) | Cloth fastener | |
| JP3056999U (en) | rucksack | |
| JPH11342278A (en) | Structure of sheet terminal treatment | |
| CA2096606C (en) | Elastic cushioning band for motor-vehicle seats | |
| JPS6212399Y2 (en) | ||
| JP3670514B2 (en) | Net pocket | |
| JP3260128B2 (en) | Grating | |
| JPH0531982Y2 (en) | ||
| JP3642091B2 (en) | Hatome | |
| JPH068796Y2 (en) | Vehicle headrest | |
| JPH0440549Y2 (en) | ||
| JPH0437520Y2 (en) | ||
| JPH034707U (en) | ||
| JPH0220180Y2 (en) | ||
| CA1052543A (en) | Clasping device | |
| JPH0749848Y2 (en) | Planar antenna | |
| JP3053232U (en) | Sun visor | |
| JP2515456Y2 (en) | Roof joint | |
| JPS5927140Y2 (en) | watch band | |
| JPS5810803Y2 (en) | panel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |