JPH06313381A - Structure made by extending sheet form material - Google Patents

Abstract

PURPOSE:To obtain a large connecting force and an airtightness, and to make the connecting work in the field processing easier when the end of a sheet is connected to a frame and the like, in case of assembling an air dome, a tent, or the like. CONSTITUTION:An insertion groove 4 to which a locking part 2 with the swelling section provided to the end of a sheet 1 is inserted; and a demountable stopper member 5 to prevent the removal of the locking part 2 from an inlet 41 by narrowing the inlet 41 of the insertion groove 4; are provided. The form of the insertion groove 4 is made in L-shape or V-shape from the inlet 41 to the bottom 42, in order to separate the bottom 41 from the stopper member 5 under the installing condition 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 "sheet") such as an air dome or a tent, and the end portion of the seat is a frame structure material ( It relates to a structure in which a sheet-like material connected to a frame is stretched.

[0002]

2. Description of the Related Art Conventionally, when assembling a tent or the like, when the end portions of the seats are connected to the frame, eyelet holes are provided at the end portions of the respective seats to secure them. For example, as shown in FIG. 21, two sheets 10
Eyelet holes 103 and 104 are provided at the ends of the eyelets 1 and 102, respectively, and a string 105 inserted through the eyelet holes 103 and 104.
By connecting the sheet to the frame 3,
The ends of 01 and 102 are connected to the frame 3.

[0003]

However, in the above-described conventional seat connecting structure, a large connecting force cannot be obtained, or the construction work is difficult when performing on-site construction such as assembly or disassembly, There was a problem such as taking time. In addition, it is necessary to provide a separate seal structure for a structure that requires sealing property such as waterproof, soundproof, fireproof, and dustproof.

The present invention has been made in view of the above problems, and an object thereof is to obtain a large connecting force when connecting the ends of a sheet such as an air dome or a tent to a frame. In addition, it is possible to perform the construction work easily at the time of on-site construction, and the seat replacement work can be performed easily. In addition, the seat connection can be airtight. The purpose is to provide the constructed structure.

[0005]

In order to achieve the above object, a structure according to the present invention is formed in a frame of the structure in the axial direction thereof and has a bulging cross section provided at an end portion of a seat. The engaging portion of the insertion groove is inserted from the inlet portion to the inner portion, and the engaging portion that is detachably attached to the insertion groove to narrow the inlet portion of the insertion groove to insert the engaging portion into the inner portion. A detachable stopper member for preventing the portion from coming off the inlet portion, and the insertion groove so that the inner portion is separated from the stopper member with the stopper member attached, The cross section is formed into a substantially L-shape or a letter-shape. The insertion groove may be formed in the frame of the structure as described above, or may be formed in the connecting member body fixed to the frame.

[0006]

According to the structure of the present invention, the locking portion provided at the end portion of the seat is inserted from the entrance portion of the insertion groove to the back portion, and the stopper member mounted on the entrance portion side of the insertion groove is used. The inlet portion is narrowed by the stopper member to prevent the locking portion from coming off from the inlet portion, and the seat is securely and firmly connected to the frame or the connecting member body to obtain a large connecting force.

Since the insertion groove has a substantially L-shaped cross section from the entrance to the back, even if a tensile force is applied to the connected sheets, most of the tensile force is applied. Acts on the frame or the connecting member body, the force acting in the direction of dropping the stopper member becomes extremely small. Therefore, the stopper member does not fall off easily, and reliable connection of the sheets is guaranteed.

Further, at the time of connecting the seats, the seats are connected to the insertion grooves by a simple operation such as inserting the locking portion into the insertion groove and mounting a stopper member, so that the connection work at the site is easy. become. Further, by attaching and detaching the stopper member, the replacement work of the sheet can be easily performed.

Further, when the sheet is stretched, the tensile force applied to the sheet presses the sheet edge portion located near the entrance of the insertion groove near the entrance, so that the insertion groove is seated at the sheet end. It is also possible to provide the function of keeping the inside of the seat in an airtight state by providing it continuously along the section, if necessary.

When the seat is directly connected to the frame by forming the insertion groove in the frame, the number of parts is reduced, which has the advantage of simplifying the structure of the structure.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are perspective views of a structure in which the seat of the present invention is stretched, and the seat 1 is attached to the frame 3 respectively.
Shows the seat house and the simple port (light-shielding, rain-shielding). The seat 1 is connected and stretched to a necessary portion of the frame 3 as described below. Figure 3
Shows an example of the connecting structure of the sheet 1 according to the present invention. In the figure, the seat 1 has a locking portion 2 having a bulged cross section at its end. 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 fastening means such as a surface fastener and a slide fastener. Combined with 11
By doing so, it has a bag-like shape, and is formed by inserting the core material 21 therein.

Here, the folded-back end portion 1a of the sheet 1
In the case where the overlapped contact portion of the sheet does not slip or the pressure contact portion between the seat 1 and the frame 3 is difficult to slip, the sheet coupling 11
May be omitted as appropriate.

The frame 3 is provided with an insertion groove 4 extending along the axial direction (direction orthogonal to the plane of the drawing). The insertion groove 4 has a size such that the bulging locking portion 2 can be inserted therein, and the inlet portion 4 is opened to the upper side of the frame 3.
1 and an inner part 42 extending continuously in a direction orthogonal to or intersecting the inlet part 41.

A stopper member mounting portion 43 is formed on the opposite side of the inner portion 42 of the insertion groove 4 and is continuous with the inlet portion 41. In the insertion groove 4, the stopper member 5 is mounted on the stopper member 5. It is formed to have an L-shaped cross section or a letter-shaped cross section when mounted on the portion 43.

The stopper member 5 has a fixing portion 51 for fixing it to the stopper member mounting portion 43, and an inlet portion 4 of the insertion groove 4 when the fixing portion 51 is attached to the frame 3.
And an intervention section 52 to be intervened in the
By interposing the inside of the inlet portion 41 and narrowing the interval of the inlet portion 41, the locking portion 2 inserted into the inner portion 42 is inserted.
Are separated from the entrance portion 41 to the outside. In this embodiment, the fixing portion 51 of the stopper member 5 is engaged with the engaging convex portion 31 of the frame 3 in the insertion direction D of the stopper member 5. The stopper member 5 and the frame 3
In order to facilitate the removal of the stopper member 5, a withdrawal gap 44 for inserting the claw is formed between and.

Although the interval of the inlet part 41 is normally narrowed by the intervention part 52, it is preferable to further narrow the gap in order to prevent foreign matter from entering the insertion groove 4 or to enhance the sealing effect. For example, the stopper member 5 has a substantially U-shaped cross section and has a hinge 53 at the deepest portion.
Numeral 3 presses the intervention portion 52 against the locking portion 2 by the elastic force.
Alternatively, an ear-shaped or protruding seal piece used in a commercially available seal member may be added, or a sealant may be applied to fill the gap in the inlet portion 41.

If the sheet 1 is a bendable sheet,
Leather, cloth-like material, mat, tape-like material, belt-like material, canvas-like material, film-like material, net-like material, metal film, and anything can be used. For example, when a tent sheet or a caravan sheet is used, the sheet 1 having a thickness of about 0.01 to 5 mm is preferably used. Further, the tension applied to the sheet 1 is generally
Although it is in the range of 0 to 200 kg / cm, in general general-purpose sheet structure, 0 to 20 kg / cm is often used. The material of the sheet 1 is not particularly limited, and a metal-like or non-metal sheet-like material or a net-like material is also used, but normally,
Polyvinyl alcohol, polyethylene terephthalate,
Various resin sheets such as polyolefin, EVA (EVOH), polyurethane (PU), nylon (Ny) and natural fiber, foam sheet, non-woven material, paper, cloth, net, laminating material or composite It may be a body or the like, and may be coated or injected with a sealing agent, or may be used in combination with a packing sheet or a non-slip sheet.

As the core material 21 which is a constituent material of the locking portion 2 provided at the end portion of the sheet 1, a continuous rod body made of metal, synthetic resin or the like, a string / rope-shaped material, etc. Hollow circular shapes such as pipes and rubber hoses are used. These core materials 21 more preferably have at least some flexibility and have a diameter of about 3 to 50 times the thickness of the sheet 1 and about 3 to 50 mm. Normally, the locking portion 2 is a sheet 1.
By using a continuous one along the end part of the above, it also serves to reinforce the end part fixed to the frame 3, and further,
When a rope-shaped material is used as the locking portion 2, the sheet 1 can be attached along the axial direction of the frame 3 by pulling the rope-shaped material. However, the locking portions 2 may be partially used as a short length and attached at appropriate intervals.

As the frame 3, in addition to metal and resin, those usually used for structural members can be used. Preferably, extrusion molding of aluminum or its alloy or resin or metal plate is pressure-molded. Use the one that you made. In addition to the round pipe shape shown in FIG. 3, the square pipe shape shown in FIG. 4 and the chevron shaped steels shown in FIG. 7 can be used as the schematic sectional shape.

Similar to the frame 3, the stopper member 5 is made of various metals or resins, as well as rubber. This stopper member 5 is in the longitudinal direction (direction orthogonal to the paper surface).
May be formed into a continuous long shape and used, or may be arranged as a short piece continuously in the longitudinal direction or arranged at an appropriate pitch.

FIG. 20 shows a combination of the long part and the short part of the engaging portion 2, the frame 3 and the stopper member 5.
Shown in (A) and (B) (plan view). In FIG. 20 (A),
The locking portion 2, the frame 3 and the stopper member 5 are all
It is a long object extending along the end (left end) of the sheet 1. In FIG. 20B, the locking portion 2 and the frame 3 are long objects, and the stopper member 5 is a short object. It should be noted that not all fixing portions of the sheet 1 need to have the connection structure according to the present invention, and connection of a part of the edges of the sheet 1 may be performed by a conventional method using an adhesive or a fixing metal fitting. .

Next, the operation of the above configuration will be described. When the seat 1 is connected to the frame 3 in FIG. 3, for example, first, as shown by the chain double-dashed line in the figure, the locking portion 2 provided at the end of the seat 1 is provided in the frame 3. The stopper member 5 may be attached to the insertion groove 4 after the insertion portion 4 is inserted from the inlet portion 41 of the insertion groove 4 to the inner portion 42. The work of connecting the seat 1 to the frame 3 may be performed. If the surface of the insertion groove 4, the engaging portion 2 or the stopper member 5 of the frame 3 has a large frictional force and the inserting operation of the engaging portion 2 is not easy, it is preferable to use a slip agent or the like.

After the work of connecting the seat 1 to the frame 3 is completed as described above, the engaging portion 2 is moved by the tensile force F applied to the seat 1 as shown by the solid line in FIG. Although it moves to the inlet 41 side of the insertion groove 4, the intervening portion 52 of the stopper member 5 intervenes in the inlet 41, and the inlet 41 is narrowed by the intervening portion 52. The stopper 2 can be prevented from slipping out of the inlet 41, and the seat 1 is securely and firmly connected to the frame 3.

Further, as described above, the seats 1 are connected by a simple operation of inserting the locking portion 2 of the seat 1 into the insertion groove 4 and mounting the stopper member 5 on the frame 3. , Connection work on site becomes easy.

Further, the insertion groove 4 provided in the frame 3
Has an L-shaped or L-shaped cross section from the inlet portion 41 to the inner portion 42, so that most of the tensile force F applied to the sheet 1 comes into contact with the end portion of the sheet 1. The reaction force F1 from the wall 7, the frictional force F2 with the contact surface of the contact wall 7, and the pressing force F3 from the intervention portion 52 of the stopper member 5 are shared and received by the friction force of the surface of the intervention portion 52. The force F4, that is, the pull-out force F4 for pushing the stopper member 5 in the pull-out direction is small. Therefore, the stopper member 5 can be prevented from slipping out only by locking the stopper member 5 to the small engaging convex portion 31 of the frame 3.

Further, since the frame 3 has a simple structure, 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, the attaching and replacing work of the seat 1 can be easily performed by attaching and detaching the stopper member 5. .

Further, when the seat 1 is connected to the frame 3, the seat 1 is pressed against the contact wall 7 by the tensile force F applied to the seat 1, so that the seat I is located on the indoor side I.
It is also possible to keep airtight between N and the outdoor side OUT. Therefore, it becomes more convenient especially when it is used when assembling a sheet structure such as an air dome that is required to be airtight and waterproof. To further improve air tightness,
Other sealing members 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.

Further, in this embodiment, since the insertion groove 4 is formed in the frame 3 and the sheet 1 is directly connected to the frame 3, it is not necessary to provide a separate connecting member.
There is an advantage that the number of parts is reduced.

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 portion 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 portion side 1a is the upper side
And the contact wall 7 are sandwiched between these sheet end side 1a
A frictional force also acts between the seat body 1b and the seat body 1b, and this frictional force becomes a part of the force that resists the tensile force F. The locking effect, the airtight effect and the damage preventing effect of the portion 11 are enhanced. Therefore, a simple material such as an anti-slip material can be used in place of the above-mentioned sewn joint portion 11 and can be sufficiently fixed.

FIG. 4 shows a second embodiment. In the figure,
A spring portion 54 is provided at the deepest portion of the stopper member 5. The spring portion 54 presses the fixing portion 51 of the stopper member 5 against the engaging convex portion 31. Stopper member 5
Has a joint surface 55 that is joined to the concave portion 32 on the outer surface of the frame 3 with an adhesive or a surface fastener, and this portion also serves as an arm when the stopper member 5 is removed. The stopper member 5 is inserted into the insertion groove 4 by the spring force of the spring portion 54.
Is securely locked to the joint surface 5 of the stopper member 5.
The adhesive force of 5 and the joining force by the hook-and-loop fastener may be simply for preventing the stopper member 5 itself from falling off. In addition to the adhesive stopper and the hook-and-loop fastener, use a simple one such as a magnet stopper, a fastening member that can be easily attached and detached. Can cope well.

FIGS. 5A and 5B show a third embodiment. The connecting structure in this figure is symmetrical about the center line C. The frame 3 has a projecting wall 33 projecting along the center line C, and the projecting wall 33 defines a pair of insertion grooves 4 and 4. Engagement protrusions 31 are formed on the left and right sides of the tip of the protruding wall 33, and the fixing portions 51 of the stopper member 5 engage with the engagement protrusions 31.
As shown in FIG. 5 (B), the stopper member 5 narrows the inlet portions 41 of the two insertion grooves 4 so that the inner portion 42 of each of these insertion grooves 4 is narrowed.
The locking portion 2 of each seat 1 inserted in the
It prevents you from going outside.

When connecting the ends of the seats 1 to the frame 3, the engaging portions 2 provided at the ends of the seats 1 of FIG. It is inserted from the inlet portion 41 into the inner portion 42, and then the stopper member 5 of FIG. 5B is attached to the protruding wall 33. As a result, one stopper member 5 prevents the two locking portions 2 inserted into the insertion groove 4 from coming off.

FIG. 6 shows a fourth embodiment. In the figure,
This connecting structure is symmetrical with respect to a center line C set in the diagonal direction of 45 ° in FIG. This connecting structure can be used to stretch the corners of the structure as shown by the solid line, but can also be used to stretch the flat portion as shown by the chain double-dashed line.

FIG. 7 shows a fifth embodiment. In the figure,
The sheet 1 is connected to the edge of the frame 3 having a chevron-shaped cross section. One seat 1 is stretched outside the frame 3, and the other seat 1 is stretched inside the frame 3. The stopper member 5 is made of semi-hard rubber, has a tapered surface 55, and is pushed into the insertion groove 4,
The taper surface 55 pushes the locking portion 2 into the inner portion 42, and the fixing portion 51 engages with the engaging convex portion 31 and is fixed.

FIG. 8 shows a sixth embodiment. In the figure,
The stopper member 5 is fixed to the wall surface of the protruding wall 33 on the insertion groove 4 side by adhesion and does not engage with the frame 3. Therefore, the fixing portion 51 is composed of the adhesive surface. Of course, it is also possible to fix the stopper member 5 and the frame 3 at the fixing portion 51 with screws or the like.

FIG. 9 shows a seat tension structure used with the seat connection structure of the present invention. In the figure, the insertion groove 4 of the frame 3 is formed with a push-in portion 45 of the locking portion 2 and a stopper accommodating recess 43A. The stopper member 5 has a bolt 6 as shown in FIG.
As shown in (B), the structure is such that it engages and disengages with the locking portion 2 by moving forward and backward. Tip 6a of the bolt 6
Are rotatably engaged with the stopper member 5. In addition,
The locking portion 2 is applied not to the end portion of the seat 1 but to the intermediate portion.

Before the seat 1 is stretched, it is necessary to prepare the sheet shown in FIG.
The stopper member 5 is attached to the tip 6a of the bolt 6 shown in FIG. Then, at the time of construction at the site, the locking portion 2 is pushed into the pushing portion 45 of the insertion groove 4. After that, as shown in FIG. 9B, the bolt 6 is advanced to lock the stopper member 5 to the locking portion 2. This makes it possible to easily apply tension to the sheet 1 on site.

FIG. 10 shows a seventh embodiment. The seat connecting structure of FIG. 10 is obtained by applying the seat tension structure of FIG. 9 to the connecting structure. That is, the insertion groove 4 of FIG.
An inner part 42 for pushing the locking part 2 is provided in the.

By the way, in the structures shown in FIGS.
Air dome, tent, construction frame, building, various membranes,
An insertion groove 4 was formed in a frame 3 such as a fence or a sheet house. However, in the present invention, as shown in the embodiments of FIGS. 11 to 19, a connecting member main body that is fixed to the frame 3 may be provided, and the above-mentioned insertion groove 4 and the like may be formed in this connecting member.

FIG. 11 shows an eighth embodiment. In this figure, the connecting member main body 30 is fixed to the frame 3 of the structure at a semi-annular seat 34. The connecting member body 30 is provided with an insertion groove 4 extending along the axial direction of the frame 3. A protruding wall 33 is integrally formed with the connecting member body 30, and the stopper member 5 engages with the engaging protrusion 31 at the tip of the protruding wall 33. As a method of fixing the connecting member main body 30 to the frame 3, in addition to adhesion, adhesion, welding, soldering, surface fasteners, bands,
It may be joined using a wire or a rope for binding, or the joining member main body 30 may be joined to the frame 3 at the seat 34 by screws. Other structures are the same as those in FIGS. 3 to 8 described above, and the same portions or corresponding portions will be denoted by the same reference numerals and detailed description thereof will be omitted.

FIG. 12 shows a ninth embodiment. In the connecting structure of this figure, the insertion groove 4 formed in the frame 3 of the connecting structure of FIG. 5 is formed in the connecting member main body 30.

FIG. 13 shows a tenth embodiment. The connecting structure in this figure is similar to the connecting structure in FIG. 7, in which the connecting member main body 30 projects laterally from the frame 3, and the seat is stretched along the surface of the pipe frame.

FIG. 14 shows an eleventh embodiment. In this figure, the outer surface of the frame 3 is a pipe made of vinyl chloride or ABS, while the connecting member body 30 having the side groove 38 is provided.
Consists of vinyl chloride and ABS. The connecting member body 30 is
The seat 34 is provided over a range of an angle θ wider than 180 °, and the seat 34 is fitted into the frame 3 by the elastic force of the resin, and the connecting member main body 30 and the frame 3 are welded to each other at the end 34a of the seat 34. . In this embodiment, since the seat 34 fits into the frame 3 and is hard to come off, the end portion 3 of the seat 34
The connecting member main body 30 can be fixed to the frame 3 by a simple method in which the solvent 4a and the frame 3 are thawed and welded.

FIG. 15 shows a twelfth embodiment. Figure 15
As shown in (A), the connecting member body 30 has an insertion groove 4
Besides, a frame mounting groove 8 is formed. The frame mounting groove 8 is mounted on the frame 3 of FIG. 15 (B), and half of the stopper member 5 is inserted as shown in FIG. 15 (C). To connect the sheets 1, first, refer to FIG.
As shown in (B), the connecting member body 30 is hooked on the frame 3. Subsequently, the locking portion 2 of the seat 1 is inserted into the inner portion 42 of the insertion groove 4. Then, as shown in FIG. 15C, the stopper member 5 is fitted into the protruding wall 33 to fix the stopper member 5. This can prevent the connecting member main body 30 from coming off from the frame 3 and prevent the locking portion 2 from coming off from the insertion groove 4 of the connecting member main body 30.

FIG. 16 shows a thirteenth embodiment. In this embodiment, the connecting member body 30 is bound to the frame 3 by the lashing belt 13. The connecting member body 30 is
It has a belt loop 39 through which the lashing belt 13 is inserted.

FIG. 17 shows a fourteenth embodiment. In this figure, the connecting member main body 30 has a band portion 35 mounted on a pipe-shaped frame (not shown). A hinge portion 36 is formed at the center of the band portion 35, while flanges 37 are provided at both ends. The connecting member body 30 is fixed to the pipe frame by being tightened by the bolts and nuts 9 at the flange portion 37.

FIG. 18 shows a fifteenth embodiment. In this figure, the connecting member main body 30 has an annular portion 38 that is mounted on the pipe-shaped frame 3. The set screw 10 is screwed into the annular portion 38, and the annular portion 38 is fixed to the frame 3 as shown in FIG. To connect the seats 1, first, as shown in FIG. 18A, the annular portion 38 is attached to the frame 3, and then the locking portion 2 and the stopper member 5 are attached to the connecting member body 30. Continuing,
While the entire connecting member body 30 is rotated in the direction A in which the seat 1 is stretched to apply tension to the seat 1, as shown in FIG. 18B, the set screw 10 is screwed in to fix the connecting member body 30 to the frame 3. .

FIG. 19 shows a sixteenth embodiment. FIG. 19
In (A), the connecting member main body 30 has a semicircular seat 34 extending along the axial direction B of the pipe-shaped frame 3, and a plurality of seats provided in the axial direction B at a predetermined pitch. It has a band insertion hole 39. In this band insertion hole 39, as shown in FIG. 19 (B), the band 1 for fastening the seat 34 to fix the connecting member main body 30 to the frame 3.
2 is inserted.

When the connecting member main body 30 is provided, the connecting member main body 30 may be a long one as shown in this figure or a short one as shown in FIGS. 20 (C) and (D). 20C shows the case where the locking portion 2 is a long object and the connecting member main body 30 and the stopper member 5 are short objects, while FIG. 20D shows the locking portion 2, The case where the connecting member main body 30 and the stopper member 5 are short objects is shown.

The connecting member body 30 may be made of any material and / or processing method capable of forming a groove, and may be a resin-made plate-bending product, a sheet-metal processed rail-shaped product, 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 connecting structure according to the present invention may be used in combination with other connecting methods. For example, both ends or one end of the sheet has a connecting structure according to the present invention, and the middle portion is joined, or one end and the other sheet are connected with a string passing through an eyelet hole to tighten the string. It is also possible to adjust the tension of the sheet by adjusting the condition.

Furthermore, the connecting structure according to the present invention is used for various membrane structures (tents, sheet houses, construction nets, sheet roofs, blinds, exhibition membranes, hoods, etc.). It can also be used as a curtain stopper, a cold weather stopper used as a heat-retaining or light-shielding material for agriculture, a fishing net stopper, a fence stopper, a belt stopper, various suspenders and stoppers.

[0054]

As described above, according to the structure in which the seat is stretched according to the present invention, when the end portion of the seat such as the air dome or the tent is connected to the frame, the seat is securely and firmly attached to the frame side. It is possible to obtain a large connecting force, and the connecting work on site becomes easy.

Further, since the insertion groove is formed in an L-shaped or L-shaped cross section from the entrance portion to the inner portion, the engaging portion provided at the end of the seat is inserted into the inner portion, and the inlet portion side is formed. Even if a tensile force is applied to the sheets when a stopper member is attached to the sheet and the sheets are connected, most of the tensile force is received by the frame or the connecting member body and applied to the removable stopper member. Since the force applied can be reduced, the stopper member can be prevented from falling off with a simple structure, and the sheets can be reliably connected.

Further, since the stopper member can be attached to and detached from the insertion groove, the sheet replacement work can be easily performed. Moreover, since the frame or the connecting member main body has a simple structure, it is excellent in productivity and can be easily downsized.

When the sheet is connected to the frame or the connecting member body, the tensile force applied to the sheet causes
Since the seat edge portion located near the inlet portion is pressed against the inlet portion, the airtightness of the connecting portion of the seat can be enhanced, which is extremely convenient especially when assembling an air dome or the like.

When the seat is directly connected to the frame by forming the insertion groove in the frame, the number of parts is reduced, which has the advantage of simplifying the structure.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an example of a structure to which the present invention is applied.

FIG. 2 is a schematic perspective view showing another example of a structure to which the present invention is applied.

FIG. 3 is a sectional view showing a seat connecting structure according to a first embodiment of the present invention.

FIG. 4 is a sectional view showing a seat connecting structure according to a second embodiment.

FIG. 5 is a sectional view showing a seat connecting structure according to a third embodiment.

FIG. 6 is a sectional view showing a seat connecting structure according to a fourth embodiment.

FIG. 7 is a sectional view showing a seat connecting structure according to a fifth embodiment.

FIG. 8 is a sectional view showing a seat connecting structure according to a sixth embodiment.

FIG. 9 is a cross-sectional view showing an example of a seat tension structure that can be used together with the seat connection structure according to the present invention.

FIG. 10 is a sectional view showing a seat connecting structure according to a seventh embodiment.

FIG. 11 is a sectional view showing a seat connecting structure according to an eighth embodiment.

FIG. 12 is a sectional view showing a seat connecting structure according to a ninth embodiment.

FIG. 13 is a sectional view showing a seat connection structure according to a tenth embodiment.

FIG. 14 is a sectional view showing a seat connection structure according to an eleventh embodiment.

FIG. 15 is a sectional view showing a seat connecting structure according to a twelfth embodiment.

FIG. 16 is a sectional view showing a seat connecting structure according to a thirteenth embodiment.

FIG. 17 is a sectional view showing a seat connecting structure according to a fourteenth embodiment.

FIG. 18 is a sectional view showing a seat connection structure according to a fifteenth embodiment.

19A is a perspective view showing a seat connecting structure according to a sixteenth embodiment, and FIG. 19B is a sectional view thereof.

FIG. 20 is a plan view showing the relationship between the sheet and the length of the frame or the connecting member main body.

FIG. 21 is a cross-sectional view showing a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Sheet, 2 ... Locking part, 3 ... Frame, 30 ... Connection member main body, 4 ... Insertion groove, 41 ... Entrance part, 42 ... Back part, 5 ...
Stopper member.

Claims (2)

[Claims] 1. An insertion groove formed in a frame of a structure along an axial direction thereof, and a locking portion having a bulging cross-section provided at an end of a sheet-like object is inserted from an inlet portion to a rear portion. And a stopper member that is detachably attached to the insertion groove of the frame and narrows the entrance portion of the insertion groove to prevent the locking portion inserted in the back portion from coming off the entrance portion. The insertion groove, with the stopper member mounted,
A structure in which a sheet-like object is stretched, characterized in that a cross section from the inlet part to the inner part has a substantially L-shape or a character shape such that the inner part separates from the stopper member. 2. A frame of a structure and a connecting member body fixed to the frame,
An insertion groove into which a locking portion having a bulging cross-section provided at an end portion of the sheet-shaped article is inserted from an inlet portion to a back portion, and the insertion groove is detachably attached to the insertion groove of the connecting member body. And a stopper member for preventing the locking portion inserted into the inner part from coming off the inlet portion by narrowing the inlet portion of the insertion groove, and the insertion groove in a state where the stopper member is mounted,
A structure in which a sheet-like object is stretched, characterized in that a cross section from the inlet part to the inner part has a substantially L-shape or a character shape such that the inner part separates from the stopper member.