JPH05306583A - Coupling member of sheet-like substance - Google Patents

Abstract

PURPOSE:To obtain strong coupling force and air-tightness and to enable the coupling work in field execution when the ends of sheets 1 are connected to each other or when the ends of the sheets 1 are connected to frame structural members, etc., in the case an air-dome or a tent is built up. CONSTITUTION:A coupling member of sheet-like substances is constituted of an insertion-slot 4 into which an interlocking section 2 provided to the end of each of sheets 1 and having a section in an expanded shape is inserted and a detachable stopper member 5 preventing the interlocking section 2 inserted in the deep section 42 from slipping from an inlet section 41 by narrowing the inlet section 41 of the insertion slot 4. The insertion slot 4 having an L- shaped section from the inlet section 41 through the deep section is so formed that the deep section 42 is separated from the stopper member 5 in a loading state of the stopper member 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for assembling a sheet-like material (hereinafter, simply referred to as a sheet) such as an air dome or a tent, and for connecting end portions of sheets to each other. The present invention relates to a seat connecting member used when connecting an end portion of a seat to a frame structure material or the like.

[0002]

2. Description of the Related Art Conventionally, when assembling a tent or the like, when connecting the ends of the sheets, the ends of the sheets are joined and integrated by using an adhesive or the like, and eyelets are provided to secure the ends. Or, as shown in FIG. 14,
The respective end portions of the two sheets A and B are superposed on each other, and the contact plates C and D are respectively applied to the upper and lower parts of the overlapped sheets A and B so as to face each other. Are joined by a fixing metal E so that the ends of the sheets A and B are connected to each other.

[0003]

However, in the conventional sheet connecting means as described above, not only when using an adhesive or the like, but also when each sheet is formed by using the above-mentioned patch plates C and D and the fixing metal fitting E. Even when connecting the ends of A and B, there were problems that a large connecting force could not be obtained and that the construction work was difficult or time-consuming when performing on-site construction such as assembly or disassembly. ..

The present invention has been made in view of the above problems, and an object thereof is to assemble sheets such as an air dome and a tent when connecting end portions of sheets to each other. A large connecting force can be obtained when connecting the end of the seat to the frame structure material, etc., and the construction work is easy to perform when performing on-site construction, and the seat replacement work is also easy. Is possible,
Another object of the present invention is to provide a seat connecting member capable of obtaining the airtightness of the seat connecting portion.

[0005]

In order to achieve the above object, a seat connecting member according to the present invention is formed with a main body, and a locking portion having a bulging cross section provided at an end portion of a seat has an inlet portion. By inserting the insertion groove into the inner part from the inner part to the inner part and by narrowing the inlet part of the insertion groove which is detachably mounted on the main body, the locking part inserted in the inner part is separated from the inlet part. And a detachable stopper member for preventing the insertion of the insertion groove, wherein the insertion groove is formed in an L-shaped cross section from the inlet portion to the inner portion so that the inner portion is separated from the stopper member with the stopper member attached. Is.

[0006]

According to the above-described seat connecting member, the locking portion provided at the end portion of the seat is inserted from the entrance portion of the insertion groove to the inner portion, and the stopper member is provided at the entrance portion side of the insertion groove. By mounting, the inlet portion is narrowed by the stopper member to prevent the locking portion from coming off the inlet portion, and the seat is firmly and firmly connected to the connecting member side, so that a large connecting force is exerted. can get.

Since the above-mentioned insertion groove is formed in an L-shaped cross section from the entrance to the back, even if a tensile force is applied to the connected sheets, most of this tensile force is received by the main body side. Thus, the force acting in the direction of dropping the stopper member becomes extremely small. Therefore, the stopper member is not easily detached, and the reliable connection of the sheets is guaranteed.

Further, when connecting the seat to the connecting member, the seat is connected to the inserting groove by a simple operation of inserting the locking portion into the inserting groove and mounting the stopper member. , Connection work on site becomes easy. Further, by attaching and detaching the stopper member, the work of exchanging the sheet can be easily performed.

The above-mentioned connecting members are arranged along the ends of the sheet continuously or at appropriate intervals, but they are connected between sheets such as tents or attached to a frame structure material. Not only for supporting the sheet to the frame structure material, but the connecting member may be formed linearly or curvedly long to serve also as a frame structure material such as a tent. Moreover, the structure is simple and the miniaturization is easy.

Further, when the sheet is connected to the connecting member, the tensile force applied to the sheet presses the sheet edge portion located near the inlet of the insertion groove into the vicinity of the inlet. It can be attached continuously along the end of the sheet to provide a function of keeping the inside of the seat airtight.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a seat connecting member according to the present invention. In the figure, reference numeral 1 is a sheet, and an engaging portion 2 having a bulged cross section is provided at an end portion thereof. The locking portion 2 is formed by folding back the end portion of the sheet 1 and joining the folded back end portion 1a, adhering, ultrasonic fusion, high frequency fusion, stitching, or other fasteners such as surface fasteners and slide fasteners. It is formed into a bag shape by coupling 11 with a stopper or the like, and a core material 21 is inserted therein.

Here, when the overlapping contact portion at the folded end portion of the sheet 1 does not slip, or when the pressure contact portion between the sheet 1 and the connecting member body 3 is difficult to slip, the sheet coupling 11
May be omitted as appropriate.

The connecting member main body 3 may be a unit product or a short product cut from a long product at an appropriate pitch, but it is usually used as a long product. The main body 3 is symmetrical with respect to the center line C and has two insertion grooves 4 extending along the length direction. The insertion groove 4 has a size such that the bulging locking portion 2 can be inserted therein, and an inlet portion 41 opened to the upper side of the main body 3 and one side in the width direction of the main body 3 from the inlet portion 41. It is formed of a back portion 42 continuously extending toward the orthogonal direction.

Further, the main body 3 is formed with a step portion 31 for mounting a stopper member, which will be described later, in a continuous manner with the inlet portion 41 near the center on the upper side of the insertion groove 4, and the insertion groove is formed. 4 is formed to have an L-shaped cross section in a state where the stopper member is mounted.

Reference numeral 5 denotes a stopper member having an L-shaped cross section. The stopper member 5 has an attaching portion 51 attached to the step portion 31 of the main body 3 and an attaching portion 51 of the attaching portion 51 to the step portion 31. When the mounting portion 51 is attached to the stepped portion 31 with a fixture 6 such as a bolt, the intervention portion 5 is provided.
By interposing 2 in the inlet portion 41 and narrowing the interval of the inlet portion 41, the locking portion 2 inserted in the inner portion 42 is prevented from coming off from the inlet portion 41 to the outside. I have to.

Although the interval of the inlet part 41 is normally narrowed by the intervention part 52, in order to prevent foreign matter from entering the insertion groove 4 or to enhance the sealing effect, the gap is narrowed or as shown by a chain double-dashed line. By adding an ear-shaped or protruding seal piece 8 as used in a commercially available seal member, applying a sealing agent, or pressing (appropriately) the intervention portion 52 to the seat 1. Good.

The sheet 1 used as described above is a flexible sheet material such as leather, cloth-like material, mat, tape-like material, belt-like material, canvas-like material, film-like material, It can be used for anything other than reticulate materials, metal films, etc. For example, when a tent sheet or caravan sheet is used, the sheet 1 preferably has a thickness of 0.1 to 0.1.
The thing of about 5 mm is used. The material of the sheet 1 is not particularly limited, and sheet-like or net-like material of metal or non-metal is used, but usually polyvinyl alcohol, polyethylene terephthalate, polyolefin, EVAL (EVOH), polyurethane ( PU), nylon (N
y), various resin sheets such as natural fibers, foam sheets,
It is a non-woven material, paper, cloth, net, laminating material, composite, or the like, and may be used by applying or injecting a sealing agent, or by overlapping with a packing sheet or a non-slip sheet.

Further, as the core material 21 which is a constituent material of the engaging portion 2 provided at the end portion of the sheet 1, a continuous rod body, a string or a rope-like material formed of metal or synthetic resin is used. Besides, a hollow circular shape such as a pipe or a rubber hose or a shape close thereto is used. These core materials 21
More preferably has at least some flexibility,
About 3 to 50 times the thickness of the sheet 1, and 3 to 50 times.
A diameter of about mm is used. Usually, the locking portion 2 is
By using a continuous one along the end of the sheet 1, the end fixed to the main body 3 is also reinforced, and further, if a rope-like material is used as the locking portion 2, By pulling the rope-shaped material, the sheet 1 can be attached along the longitudinal direction of the connecting member. However, the locking portions 2 may be used as a short length that is partially attached at appropriate intervals.

Further, the connecting member main body 3 may be any material and processing method capable of forming a groove, such as a resin plate bent product, a sheet metal processed rail-shaped product, or injection molding or molding. A unit product such as a cold mold, a short product or the like can be used, but Al, PVC,
Polyolefin, PET, PES, PBT, ABS, N
It is made of y, PU, or rubber, and a resin molded product formed by a profile extrusion molding means, an aluminum extrusion molded product, a thermosetting resin pultruded product, and the like are particularly preferable.

The stopper member 5, like the main body 3, is made of various metals or resins. The stopper member 5 may be formed by using a continuous long dimension in the longitudinal direction (direction orthogonal to the paper surface), or may be formed in a short dimension and arranged continuously or at an appropriate pitch in the longitudinal direction. May be.

FIG. 13 (plan view) shows a combination of long and short parts of the engaging portion 2, the main body 3 and the stopper member 5. In FIG. 13 (A), the locking portion 2, the main body 3 and the stopper member 5 are all long members extending along the end portion (left end portion) of the sheet 1. In FIG. 13 (B),
The locking portion 2 and the main body 3 are long and the stopper member 5 is short. In FIG. 13C, the locking portion 2 is a long object, and the main body 3 and the stopper member 5 are short objects. In FIG. 13D, all the members 2, 3, 5 are short items. The pair of ends of the sheet 1 may be connected by the connecting member of the present invention or by a conventional method using an adhesive or a fixing metal fitting.

Next, the operation of the seat connecting member having the above structure will be described. When the seat 1 is connected to the main body 3 in FIG. 1, first, for example, as shown by the solid line in the drawing, the locking portion 2 provided at the end portion of the seat 1 is used.
Is inserted from the inlet portion 41 of the insertion groove 4 provided in the main body 3 into the inner portion 42, and at the same time, the stopper member 5 is attached to the step portion 31 provided in the main body 3 via the fixture 6. Alternatively, the stopper portion 5 is used to insert the locking portion 2 into the insertion groove 4
The sheet 1 can be attached by pushing it into
The connection work to the main body 3 side is completed. When the frictional force on the surface of the insertion groove 4, the engaging portion 2 or the stopper member 5 of the main body 3 is large and the inserting operation of the engaging portion 2 is not easy, a slip agent or the like may be used.

Then, as described above, the sheet 1
After the connection work to the side of the connecting member body 3 is completed, the engaging portion 2 is pulled by the tensile force F applied to the seat 1, and the inlet portion 41 of the insertion groove 4 is formed as shown by the phantom line in FIG. The stopper member 5 is moved to the inlet portion 41.
Since the intervention section 52 of the above is intervened and the entrance section 41 is narrowed by the intervention section 52, the entrance section 4 of the locking section 2 is
The sheet 1 is prevented from coming off, and the sheet 1 is securely and firmly connected to the main body 3.

Further, as described above, the locking portion 2 of the seat 1 is inserted into the insertion groove 4, and the stopper member 5 is attached to the main body 3 as described above.
Since the seats 1 are connected by a simple work of simply attaching the seats to the seats, the connection work on site becomes easy.

Further, since the insertion groove 4 provided in the main body 3 is formed in an L-shaped cross section from the inlet portion 41 to the inner portion 42, most of the tensile force F applied to the seat 1 is the above. The push-up force F1 acting on the upper wall 7 forming the insertion groove 4, the frictional force F2 with the tip end surface 71 of the upper wall 7, and the pushing force F3 acting on the side wall surface 53 of the stopper member 5 are shared and received. And the frictional force F of the side wall surface 53
4, that is, the pull-out force F4 for pushing the stopper member 5 in the pull-out direction is small. Therefore, since the force for fixing the stopper member 5 is small, the fixture 6 can be simple and small.

Furthermore, since the structure of the connecting member is simple, high strength can be easily obtained, productivity is excellent, and downsizing is easy.

Further, since the stopper member 5 is attachable to and detachable from the insertion groove 4 via the fixing tool 6, by attaching or detaching the stopper member 5, the seat 1 is attached or replaced. Can be done easily.

Furthermore, when the seat 1 is connected to the main body 3, the tensile force F applied to the seat 1 causes
Since the seat 1 is pressed against the tip surface 71 of the upper wall 7,
As shown in FIGS. 3 (A) and 3 (B), when the main body 3 is a continuous long object, the space between the indoor side IN and the outdoor side OUT of the seat 1 can be kept airtight. Therefore, it becomes more convenient especially when used for assembling a sheet structure such as an air dome that is required to be airtight and waterproof. In order to further improve the airtightness, another sealing member may be inserted in the packing portion, the stopper member 5 may have a shield structure, or a coating agent may be used on the sheet surface.

The main body 3 may be attached to a frame structure material such as an air dome, a tent, a construction frame, a building, various film bodies, a fence, a sheet house, or the main body 3 is long in a straight line or a curved line. It may be formed and used also as various frame structure materials.

Further, when the sheet 1 is folded back to form the bag-like locking portion 2, the direction of the folding back of the sheet end is as follows.
It can be arbitrarily decided depending on the connection structure and the convenience of assembly work,
As in this embodiment, when the folded end side (short piece side) 1a of the sheet 1 is polymerized and coupled 11 so as to be downward, when the sheet 1 is subjected to a tensile force F, the sheet 1 is positioned on the lower side. The body 1b of the seat 1 whose end side 1a is the upper side
Since it is sandwiched between the upper end 7 and the upper wall 7, a frictional force also acts between the sheet end side 1a and the sheet main body 1b, and this frictional force becomes a part of the force against the tensile force. Therefore, the force applied to the joint portion 11 of the sheet 1 is reduced by that much, and the locking effect, the airtight effect, and the damage prevention effect of the joint portion 11 are increased. Therefore, instead of the sewn joint portion 11, a simple one such as an adhesive, a non-slip material, or a surface fastener can be used.

FIG. 2 shows a second embodiment, in which FIG.
The engaging concave portion 32 is formed on the surface of the connecting member body 3 opposite to the inner portion 42, and the stopper convex portion 53 is provided on the stopper member 5 to engage with the concave portion 32.
3 is locked in the recess 32, a simple fixture 6
Thus, the stopper member is fixed to the main body 3. By doing so, the stopper member 5 is securely locked in the insertion groove 4, and the extraction force F4 of FIG. Therefore, the fixture 6 is simply the stopper member 5
It may be used to prevent itself from falling off, and in addition to the small screws as shown in the figure, adhesive stop, surface fastener stop, magnet stop,
Even if a simple fastening member such as an easily attachable / detachable member is used, it can be sufficiently dealt with.

FIG. 3 shows a third embodiment, in which the left and right sides of the protrusion 33 at the center of the connecting member body 3 are
Plate-shaped stopper members 5 and 5 are provided, and the respective inlet members 41 of the insertion grooves 4 are narrowed by the stopper members 5, so that the sheets 1 inserted into the inner portions 42 of the insertion grooves 4 are inserted. The locking portion 2 is prevented from slipping outward from each of the inlet portions 41. Each stopper member 5 is provided on the upper side of the protrusion 33.
The backing plate 8 for preventing the above from coming off to the outside is attached by a fixture 6 such as a screw.

When connecting the ends of the seats 1 to the main body 3, the locking portions 2 provided at the ends of the seats 1 are
From the inlet portion 41 of the insertion groove 4 provided in the main body 3 to the inner portion 42
After that, the stopper members 5 are arranged on the left and right sides of the protrusion 33, and the contact plate 8 is applied to the upper side of the protrusion 33 and fixed by the fixture 6. As a result, the stopper plate 5 is prevented from coming off by the contact plate 8, and the locking portion 2 inserted in the insertion groove 4 is prevented from coming off by these stopper members 5.

FIG. 4 shows a fourth embodiment. In FIG. 4, the stopper member 5 is fixed to the central portion of the connecting member body 3 by a screw or the like, which also serves as a protrusion in the middle of the body and both left and right stoppers. This is fixed with a tool 6, and the stopper member 5 narrows the inlet portions 41 of the two insertion grooves 4 and 4 so that the locking portions 2 of the seats 1 inserted into the inner portions 42 of the respective insertion grooves 4 have the inlet portions. It prevents the portion 41 from coming out.

FIG. 5 shows a fifth embodiment, in which a protrusion 33 is provided at the center of the connecting member body 3, and projections and depressions 34 are formed on the left and right side surfaces of the protrusion 33, each of which has a slope for preventing slippage. At the same time, each stopper member 5 provided on both side surfaces of the protrusion 33 is provided with an uneven portion 54 which is engaged with the uneven portion 34, and the uneven portions 34 and 54 can be repeatedly used by a magnet or a light adhesive. Each stopper member 5 can be attached to the main body 3 without using the contact plate 8 and the fixture 6 in the third embodiment of FIG. 3 by engaging with each other by using an agent or the like.

In the embodiment shown in FIG. 1, the end side 1a of the sheet 1 is
6 was folded back and joined 11, but unlike this, as shown in FIG.
In the sixth embodiment of (A), the expansion head 12 having a width larger than the clearance dimension of the inlet portion 41 is formed at the leading end portion of the seat 1 to prevent the seat 1 from coming off from the connecting member body 3. It is carried out. As a result, the folded back joint 1
1 is omitted and the bulging portion 12 comes into contact with the shoulder portion of the stopper member 5, so that the inner side I of the seat 1
The sealing effect between N and the outdoor side OUT is also improved. As a method of forming the bulging portion 12, the tip portion of the sheet 1 may be wound around the outer periphery of the core material 12 such as a rope, or as shown in FIG. The end members 13 having a bulged cross section may be joined by joining means such as bonding. Further, as shown in FIG. 6C, the receiving groove 14 of the expansion head 12 may be provided by notching the shoulder portion of the stopper member 5. The cross-sectional shape of the bulging portion 12 can be selected from various shapes such as a T shape, a quadrangle, and a triangle, in addition to the circular shape.

In the seventh embodiment of FIG. 7, as shown in FIG. 7 (A), one locking step 38 is provided on both left and right sides of the protrusion 33 provided at the central portion of the connecting member body 3, and By using the stopper member 5 having a U-shaped cross section, the engaging portions 56 to be engaged with the engaging step portions 38 are formed on the inner surfaces of both legs of the stopper member 5, respectively. The locking step 38 is engaged. In this case as well, it is preferable that the upper connecting portion of the stopper member 5 is formed so as to be flexible so that the stopper members 5 can be attached / detached to / from the main body 3 with one touch. Further, when it is necessary to prevent the vertical displacement of the both members 3 and 5 with the stopper member 5 set in the main body 3 and the stopper member 5 from falling off from the main body 3 when the stopper member 5 is a short product, As shown in FIG. 7 (B), the protrusion 33 is provided with a notch 71 at an appropriate location along the longitudinal direction L of the main body 3, and the engaging projection 72 is provided at a corresponding location of the stopper member 5, so that both 71 , 72 may be engaged.

FIG. 8 shows an eighth embodiment, in which the inlet portions 41 of the two insertion grooves 4 are opened not to the upper side of the main body 3 but to the left and right. That is, the insertion groove 4 having the inlet portion 41 on the left side is formed on the left side of the partition wall 36 at the center of the connecting member body 3, and the insertion groove 4 having the inlet portion 41 on the right side is formed on the right side. There is. The insertion groove 4 on the left side has an L-shape having a back portion 42 recessed downward, and the insertion groove 4 on the right side has an L-shape having a back portion 42 recessed upward.

From the right and left outer sides of the inlet portions 41, the locking portions 2 provided at the end portions of the seats 1 are inserted into the inner portions 42, and the stopper members 5 are attached to the inlet portions 41, respectively. By inserting and fixing with a simple fixture 6, the inner part 4
The locking portion 2 of each sheet 1 inserted into the sheet 2 is locked so as not to come out from the inlet portion 41 to the outside.

In the ninth embodiment of FIG. 9, two insertion grooves 4 and 4 defined by partition walls 37 are formed on the left and right sides of the connecting member body 3 so that the respective inlet portions 41 are vertically opposite sides. Is formed. Inserting the locking portion 2 provided at the end of each seat 1 into the inner portion 42 from the upper and lower outer sides of each of the inlet portions 41, inserting the stopper member 5 into each of the inlet portions 41, Cushion fixture 61 provided on this
And the step stop of the unevenness 57 to fix the inner part 42
The engaging portion 2 of each sheet 1 inserted into the sheet is prevented from coming out of the inlet portion 41 to the outside, and foreign matter is prevented from entering.

By the way, the seat connecting member of each of the above-described embodiments is used to connect two sheets, but unlike this, the sheet connecting member is used for a frame structure such as a tent. The two sheets may be attached to the frame structure by mounting. In addition, in the connecting member for connecting one sheet to the frame structure material, it goes without saying that only one insertion groove is required. In that case, for example, as in the tenth embodiment of FIG. 10 which is a modification of the first embodiment, the connecting member may have only one half shape of the two insertion groove type.

The sheet connecting member of the present invention can also be applied to the connection of three or more sheets to each other or the connection of three or more sheets to the frame structure. FIG. 11 shows a connecting member for four sheets as an eleventh embodiment. Four insertion grooves 4 are provided in left-right and up-down symmetry. The extending direction of the sheet 1 may be any direction within the range A. According to this, it becomes possible to connect two right and left sheets 1 and 1 having a double film structure.

Further, as shown by the chain double-dashed line in FIG.
A mounting flange 9 is provided on the main body 3 having one insertion groove 4, and one end of the sheet 1 is mounted on the mounting flange 9.
It is also possible to form the engaging portion 2 at the other end of the sheet 1 and engage the engaging portion 2 with the insertion groove 4 of another body 3 to connect the sheets to each other.

Further, as shown in FIG. 12, the engaging portion 2 provided at the end of the seat 1 has a bulging portion 23 provided at one end of a bendable tabular ear member 22. Use
A portion of the flat plate-shaped ear member 22 opposite to the bulging portion 23,
You may make it join 11A to the edge part of the said sheet | seat 1 by means, such as adhesion.

The connecting member of the present invention may be used in combination with other sheet connecting methods. For example, both ends or one end of the sheet are locked by the connecting members of the present invention,
Alternatively, by connecting the other end and the other sheet with a string passing through the eyelet hole, it is possible to adjust the tension of the sheet by adjusting the tightening degree of the string.

Further, the present connecting member is used for various membrane structures (tents, sheet houses, construction nets, sheet roofs, blinds, exhibition membranes, hoods, etc.), as well as cartons. Stop, cold weather stop used as a heat insulating or shading material for agriculture, fishing net stop, fence stop, belt stop,
It can also be used as various suspenders and stoppers.

[0047]

As described above, according to the seat connecting member of the present invention, when assembling an air dome, a tent, or the like, when the end portions of various sheets are connected to each other, or the ends of various sheets are connected. When the portion is connected to the frame structure material or the like, the sheet can be surely and firmly connected to the connecting member side, a large connecting force can be obtained, and the connecting work on site becomes easy.

Further, since the insertion groove is formed in an L-shaped cross section from the entrance portion to the back portion, the locking portion provided at the end portion of the seat is inserted into the depth portion and the stopper is provided on the entrance portion side. Even if a tensile force is applied to the sheets when the members are attached and the sheets are connected, most of the tensile force is received by the main body side, and the force given to the removable stopper member is applied. Since the number can be reduced, the stopper member can be prevented from coming off with a simple structure, and the sheets can be reliably connected.

Furthermore, by making the stopper member attachable / detachable to / from the insertion groove, the replacement work of the seat can be easily performed. In addition, the connecting member,
In addition to being used for supporting the seat by being attached to a frame structure material such as a tent, the connecting member can be used as a frame structure material such as a tent by forming the connecting member to be long in a linear shape or a curved shape.

Moreover, since the seat connecting member has a simple structure, it is excellent in productivity and can be easily downsized.

Further, when the sheet is connected to the connecting member, the tensile force applied to the sheet presses the edge portion of the sheet located near the inlet portion near the inlet portion, so that the connecting portion of the sheet is hermetically sealed. It is also very convenient, especially when assembling an air dome or the like.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a seat connecting member according to a first embodiment of the present invention.

FIG. 2 is a partial sectional view showing a second embodiment.

FIG. 3 is a vertical sectional view showing a third embodiment.

FIG. 4 is a partial sectional view showing a fourth embodiment.

FIG. 5 is a sectional view showing a fifth embodiment.

FIG. 6 is a sectional view showing a sixth embodiment.

FIG. 7 is a vertical sectional view showing a seventh embodiment.

FIG. 8 is a vertical sectional view showing an eighth embodiment.

FIG. 9 is a vertical sectional view showing a ninth embodiment.

FIG. 10 is a vertical sectional view showing a tenth embodiment.

FIG. 11 is a vertical sectional view showing an eleventh embodiment.

FIG. 12 is an oblique cross-sectional view showing another example of a locking portion provided at the end of the seat.

FIG. 13 is a plan view showing the relationship between the sheet and the length of the sheet connecting member.

FIG. 14 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

1 ... Sheet, 2 ... Locking part, 3 ... Main body, 4 ... Insertion groove, 41
... inlet part, 42 ... back part, 5 ... stopper member.

Claims (1)

[Claims] 1. An insertion groove formed in a main body and having a bulging cross-section provided at an end portion of a sheet-like article, the insertion groove being inserted from an inlet portion to a rear portion, and detachable from the main body. A stopper member that is mounted and narrows the entrance portion of the insertion groove to prevent the locking portion inserted into the back portion from coming off the entrance portion,
A sheet-like object connecting member, wherein the insertion groove has an L-shaped cross section from the entrance portion to the back portion so that the back portion is separated from the stopper member when the stopper member is mounted.