JPH0719605U - Seat tension structure - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a seat tensioning structure that makes it easy to attach and detach the seat and stabilizes the tensioning of the seat. [Structure] A bolt 4 which penetrates an eyelet hole 3a provided in a seat 2 is attached to a side surface of a frame 1 in advance. Bolt 4
An elastically deformable sheet pressing member 5 having a hole 7 with a split groove that is attachable to and detachable from the bolt shaft 4b is attached between the head 4a of the sheet and the seat 2. Thus, after the seat 2 is brought into contact with the frame 1 via the bolt 4 attached to the frame 1, the sheet pressing member 5 can be attached to the bolt 4 to stretch the seat 2. Further, the seat 2 can be removed from the frame 1 after the seat pressing member 5 is removed from the bolt 4.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet tensioning structure for tensioning a sheet such as a tent sheet or a vinyl sheet, and more specifically to a sheet tensioning structure for improving workability and reliability. is there.

[0002]

[Prior art]

 Generally, when constructing or renovating a house or performing exterior coating work, a scaffold is built around the house, and a curing sheet is attached to the frame that is integrated with the scaffold, and then disassembled and painted. ing. For temporary tents used for events such as sports festivals and vinyl greenhouses used for greenhouse cultivation, tent sheets and vinyl sheets are stretched over a framed frame to assemble the tent.

As a conventional seat tension structure of this type, as shown in FIG. 6, for example, the hole 3a of the eyelet 3 attached to the seat 2 and the frame 1 are tightened with a rope 10 to stretch the seat 2. 7A or 7B, or as shown in FIGS. 7 (a) and 7 (b), the mounting bolts 12 penetrating the holes 3a of the eyelets 3 mounted on the seat 2 are fastened to the frame 1 to directly mount the seat 2 thereon. The thing of the structure is known.

[0004]

[Problems to be solved by the device]

 However, in the former case, that is, in the structure in which the seat 2 is fastened around the frame 1 by the rope 10, the rope 10 is stretched while alternately hanging the rope 10 in the eyelet holes 3a arranged in line at the edge of the seat 2. There is a problem that it takes a lot of labor and time to fasten it around the frame 1. Further, when removing the seat 2, the seat can be easily removed by cutting the rope 10, but there is a problem that the rope 10 becomes useless. On the other hand, in the latter case, that is, in the structure in which the seat 2 is stretched by using the mounting bolts 12, the mounting bolts 12 can be removed and reused. Since the seat 2 is tensioned by using the seat 2 as described above, there is a problem in that it requires a lot of labor and time for mounting and also requires a lot of labor and time for removal.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a seat tension structure in which the seat can be easily attached and detached and the seat tension can be stabilized. To do.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the seat tension structure of the present invention is such that a bolt that penetrates a mounting hole provided in a seat is attached to a frame, and is attached to and detached from a bolt shaft between the head of the bolt and the seat. It is characterized in that an elastically deformable sheet pressing member having a possible slotted hole is interposed.

In the present invention, the sheet pressing member may be made of any material as long as it is elastically deformable and has a slotted groove that can be attached to and detached from the bolt shaft, for example, hard rubber or synthetic resin. Can be formed in.

[0008]

[Action]

 According to the seat tension structure of the present invention configured as described above, after the seat is attached to the frame through the mounting holes provided in the seat to the bolts that are previously attached to the frame, the seat pressing member is split. The seat can be stretched on the frame by elastically deforming the grooved hole and attaching it to the bolt shaft between the head of the bolt and the seat and then releasing the deformation. Further, the sheet holding member attached to the bolt can be deformed to remove the sheet holding member from the bolt, and then the sheet can be removed from the frame via the bolt. Therefore, the seat can be easily attached to and detached from the frame, and the seat pressing member can be repeatedly used, so that the member can be effectively used.

[0009]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Here, the same parts as in the conventional case will be described with the same reference numerals.

FIG. 1 is an exploded perspective view of a seat tension structure of the present invention, and FIG. 2 is a sectional view of the seat tension state.

In the figure, reference numeral 1 is a frame constituting, for example, a scaffold, etc., and screw holes 1a are formed on the side surface of the frame 1 at appropriate intervals, and the bolts 4 are inserted in the screw holes 1a. Has been installed in the factory beforehand. Eyelets 3 as attachment holes are attached to the edge of the sheet 2 stretched over the frame 1 at positions equidistant from the screw holes 1a. The diameter L1 of the hole 3a of the eyelet 3 is slightly larger than the diameter L2 of the head 4a of the bolt 4. Therefore, the seat 2 can be brought into contact with the frame 1 by inserting the eyelet holes 3a into the bolts 4 attached to the frame 1. In the figure, reference numeral 5 is a sheet pressing member which is attached to the bolt shaft 4b between the head 4a of the bolt 4 and the sheet 2 to prevent the sheet 2 from coming off. As shown in FIGS. 1 to 3, the sheet pressing member 5 is provided with a hole 7 having a diameter slightly larger than that of the bolt shaft 4b in the central portion of the rectangular plate-shaped main body 6 and extending from the hole 7 to the outer side. A split groove 8 is provided. The sheet pressing member 5 thus configured is formed of an elastically deformable member such as a hard rubber or a synthetic resin member. Therefore, as shown by an imaginary line in FIG. 3, by bending both side pieces 9, 9 of the split groove 8 of the sheet pressing member 5 in mutually opposite directions, the split groove 8 portion is expanded and crossed direction of the bolt shaft 4b. The sheet pressing member 5 can be attached to or removed from the bolt 4.

In the above-described embodiment, the case where the bolt 4 is screwed into the screw hole 1a provided in the frame 1 having a solid cross-section to be mounted, but the bolt 4 is not necessarily provided in the screw hole 1a provided in the frame 1. It is not necessary to screw the bolts 4 together. For example, the hollow frame 1 may be provided with a through hole, and the bolt 4 may be screwed into a nut provided in series with the through hole. Further, in the above embodiment, the case where the bolt head 4a has a circular shape has been described, but the bolt head 4a may have any shape other than a circular shape, such as a hexagon or a square. Further, the shape of the sheet pressing member 5 may be any shape such as a circle other than the rectangle.

Next, a procedure for attaching the seat will be described with reference to FIGS. 4 and 5. First, in a factory or the like, screw holes 1a are previously formed in the side surface of the frame 1 at appropriate intervals, and eyelets 3 are attached to the edges of the seat 2 at the same pitch as the screw holes 1a. Then, the bolt 4 is planted in the screw hole 1a. The frame 1 with the bolts 4 planted therein and the sheet 2 are transported to the site, the frame 1 is framed, and the folded sheet 2 is unfolded. Then, as shown in FIG. The seat 2 is brought into contact with the frame 1 by inserting the bolt 2 into the bolt 4. Next, as shown in FIG. 5, both side pieces 9, 9 of the split groove 8 of the sheet pressing member 5 are bent and deformed in mutually opposite directions to attach the bolt shaft 4b after expanding the split groove portion. When the deformation is released, the seat pressing member 5 is fixed to the bolt shaft 4b and the seat 2 can be prevented from coming off the frame 1.

When the seat 2 is detached from the frame 1, both side pieces 9, 9 of the split groove 8 of the seat pressing member 5 attached to the bolt shaft 4b are bent and deformed as described above to obtain the sheet pressing member. After removing 5 from the bolt shaft 4b, the seat 2 can be removed from the frame 1 by pulling out the eyelet holes 3a of the seat 2 from the bolts 4.

Therefore, since the seat pressing member 5 can be deformed to be attached to and removed from the bolt 4, the seat 2 can be easily attached and detached, and the seat tension can be ensured. it can.

[0016]

[Effect of device]

 As described above, according to the seat tensioning structure of the present invention, since the seat is constructed as described above, the seat can be easily attached to and detached from the frame, and the seat pressing member is repeatedly used. Since it can be used, the members can be effectively used.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a seat tension structure of the present invention.

FIG. 2 is a cross-sectional view showing a seat adjustment state.

FIG. 3 is a perspective view showing a sheet pressing member according to the present invention.

FIG. 4 is a cross-sectional view showing a state before a sheet is attached to the frame.

FIG. 5 is a cross-sectional view of a state in which the seat is fixed.

FIG. 6 is a side view showing a conventional seat tension structure.

7A and 7B are a side view and a cross-sectional view taken along line AA of another conventional seat tension structure.

[Explanation of symbols]

 1 frame 2 seat 3 eyelet (mounting hole) 3a eyelet hole 4 bolt 5 sheet pressing member 7 hole 8 split groove

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Noboru Ueno 20-1 Shimoda-cho, Sakai-shi, Osaka Inside Nippon Light Metal Co., Ltd. (72) Inventor Yasuo Sawada 20-1 Shimoda-cho, Sakai-shi, Osaka Nippon Light Metal Co., Ltd. Inside the Osaka Plant (72) Inventor Takeo Kita Nobu 20-1 Shimoda-cho, Sakai City, Osaka Prefecture Nippon Light Metal Co., Ltd. Osaka Plant

Claims (1)

[Scope of utility model registration request] 1. An elastically deformable bolt having a split groove, which is attached to a bolt shaft, is mounted between a head of the bolt and a seat, the bolt penetrating a mounting hole provided in the seat. Seat tension structure characterized by interposing a different sheet pressing member.