JPH076508U - Seat tension device - Google Patents

Abstract

(57) [Summary] [Purpose] A seat that has a small number of parts and is advantageous in terms of management, that allows the seat to be easily fixed, and that the seat will not come off due to wind pressure or cause water leakage. Provide a tensioning device. A protrusion 3 is provided on one side of the opening 2 of the channel-shaped frame 1, and an engaging protrusion 4 that engages with the protrusion 3 from the inside is formed on the other end of the opening 2 at the tip. A plate member 5 having elasticity is provided. Bulging portion 9 on the seat 7 to be stretched
The bulging portion 9 is inserted into the frame 1 from between the protruding portion 3 of the frame 1 and the engaging protruding portion 4 of the plate-like member 5 and locked. As a result, the seat 7 can be easily fixed, and it is possible to prevent the seat 7 from coming off or water leakage due to wind pressure.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sheet tensioning device for tensioning a sheet such as a tent sheet or a vinyl sheet, and more particularly to a sheet tensioning device for improving workability and reliability.

[0002]

[Prior art]

 As this type of sheet tensioning device, various structures have been proposed (Japanese Utility Model Publication No. 55-75255, Japanese Patent Application Publication No. 57-2619, Japanese Utility Model Publication No. 56-90861, Japanese Utility Model Publication No. (See, for example, JP-A-57-203762).

For example, the device disclosed in Japanese Utility Model Laid-Open No. 55-75255 has a channel-shaped frame with a narrow opening and a bulging portion having a substantially inverted triangular shape formed at the tip of the ridge. It is mainly composed of a holding plate having a substantially T-shaped cross section. In this case, the seat is fixed on the frame by pushing the bulging portion of the pressing plate into the opening of the frame through the seat and engaging the bulging portion.

Further, the device disclosed in Japanese Utility Model Laid-Open No. 57-203762 discloses a grooved rail in which both sides are inwardly bent at an acute angle, and an elastic stopper fitted and inserted in the grooved rail. And a pressing plate placed on the stopper via a sheet and a fixing screw for fixing the pressing plate to the stopper. In this case, the seat is fixed on the groove-shaped rail by fixing the holding plate with the stop screw through the seat on the stopper in the groove-shaped rail.

[0005]

[Problems to be solved by the device]

 However, in the former device, the bulging portion of the pressing plate is only engaged with the inside of the opening of the frame by the frame force of the frame, and therefore the bulging portion of the pressing plate due to the wind pressure applied to the seat. However, the sheet may be pulled out from the opening of the frame and the sheet may come off, resulting in a lack of reliability. The latter device does not have such a problem, but it has a large number of parts such as a grooved rail, a holding plate, and a fixing screw, which is not only a problem in terms of management, but also causes a hole in the sheet due to the fixing screw. There was a problem that water leakage or breakage from that part was likely to occur due to the piling, and that the work of screwing the set screw was troublesome and workability was poor.

The present invention has been made in view of the above circumstances. It has a small number of parts and is advantageous in terms of management. The seat can be easily fixed, and the seat may come off due to wind pressure or water leakage may occur. The purpose of the present invention is to provide a seat tensioning device that does not wear.

[0007]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, a seat tensioning device of the present invention comprises a channel-shaped frame having a protrusion on one side of an opening, and a protrusion provided on the other end of the frame on the other side of the opening. An elastic plate-shaped member that forms an engagement protrusion that engages from the inside, and a space between the protrusion of the frame and the engagement protrusion of the plate-shaped member that is formed on the seat to be stretched It is characterized in that it is provided with a bulging portion that is inserted and locked.

In this invention, if the bulging portion is one that is inserted into and locked in the frame between the protruding portion of the frame and the protruding portion of the plate-shaped member, the bulging portion has a bulging shape. The member may be sewn or adhered, but it is more preferable that the sheet is formed by wrapping a rod-shaped body in that a bulged portion can be easily formed at an arbitrary position of the sheet. It is suitable.

[0009]

[Action]

 According to the seat tensioning device of the present invention configured as described above, the bulging portion provided on the seat is elastically repulsed from the plate-shaped member from between the protrusion of the frame and the engaging protrusion of the plate-shaped member. By inserting into the frame against the force, the bulging portion is locked in the frame through the engaging protrusion of the plate-shaped member that returns by elastic force. Then, the pulling force of the bulging portion generated by the wind pressure applied to the seat acts in the direction of engaging the engaging protrusion of the plate member with the protrusion of the frame, so that the bulge engages with the protrusion. It will not be pulled out from between the department. Therefore, the seat can be easily and surely fixed, the seat does not come off due to wind pressure, and workability and reliability can be improved. In addition, the number of parts is small, which is advantageous in terms of management. Moreover, since there are no holes in the seat such as screws, water leakage does not occur.

[0010]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

In FIG. 1 showing a first embodiment of the present invention, reference numeral 1 is a frame having a U-shaped channel in cross section, which is made of a metal shape member or roll forming material of a sheet tensioning device, and one of openings 2 thereof. A rounded protrusion 3 is integrally formed continuously in the longitudinal direction on the side, that is, on the upper end of the inner surface of one side 1a of the frame 1. On the other side of the opening 2, that is, on the upper side of the inner side of the other side 1b of the frame 1, a rounded engagement protrusion 4 that engages with the protrusion 3 from the inside is integrally formed at the tip. The formed elastic plate-like member 5 is continuously and integrally provided in the longitudinal direction. In this case, the base of the plate member 5 is fitted into the groove 6 formed in the upper side of the inner surface of the side portion 1b of the frame 1 and fixed by caulking or welding. It may be integrally formed on the side portion 1b of the first unit.

As shown in FIG. 2, a bulging portion 9 is formed on the sheet 7 to be stretched, such as a tent sheet or a vinyl sheet, by wrapping the rod-shaped body 8 in the sheet 7, and the bulging portion 9 is formed. 9 is inserted into the frame 1 from between the protrusion 3 of the frame 1 and the engaging protrusion 4 of the plate-like member 5 against the elastic force of the plate-like member 5 so that the sheet 7 is inserted into the frame 1. It is designed to be fixed to.

In the sheet tensioning device thus configured, the frames 1 are arranged at appropriate pitch intervals so that the openings 2 thereof face outward in order to form a skeleton such as a tent or a vinyl house. . Then, the sheet 7 is covered on the frame 1, and the bar-shaped body 8 is placed from above the frame 1 and pushed in to form a bulging portion 9 on the sheet 7, and the bulging portion 9 is formed on the projection 3 of the frame 1 and the plate. The plate-shaped member 5 may be inserted into the frame 1 against the elastic force of the plate-shaped member 5 through the space between the plate-shaped member 5 and the engaging protrusion 4.

As a result, the bulging portion 9 is locked in the frame 1 via the engaging projection 4 of the plate-like member 5 that returns by elastic force, and the seat 7 is securely fixed to the frame 1. Stretched. In this case, the pull-out force of the bulging portion 9 generated by the wind pressure applied to the seat 7 acts in the direction of engaging the engaging protrusion 4 of the plate member 5 with the protrusion 3 of the frame 1, so that the bulging portion 9 is not pulled out from between the protrusion 3 and the engaging protrusion 4. Therefore, the sheet 7 can be easily and surely fixed, the seat does not come off due to wind pressure, and workability and reliability can be improved. Further, since the seat 7 is firmly fixed in this way, the pitch interval of the frame 1 can be widened and the workability is further improved.

Further, since this sheet tensioning device is mainly composed of the frame 1 integrally provided with the plate-like member 5 and the rod-shaped body 8 forming the bulging portion 9 on the sheet 7, The number of points is small, which is advantageous in terms of management. Moreover, since the seat 7 does not have holes for fixing screws, water leakage does not occur. Further, when the seat 7 is removed, the plate-like member 5 may be pushed into the frame 1 to separate the engaging protrusion 4 from the protrusion 3 of the frame 1, whereby the seat 7 may be expanded. It can be easily pulled out and removed from the frame 1 together with 9.

As a joining structure of the plate member 5 to the frame 1, as shown in FIGS. 3 to 4, an engaging portion 10 having a dovetail cross section or a circular cross section is provided at the base of the plate member 5. A groove 6 with which the engaging portion 10 engages is formed on the side edge portion 1b of the reference numeral 1 so that the engaging portion 10 is engaged with the groove 6, or the base portion of the plate-like member 5 is the frame 1. It may be simply welded to the side portion 1b.

Further, in the above embodiment, the plate-shaped member 5 is continuously formed in the longitudinal direction of the frame 1, but the plate-shaped member 5 may be divided in the longitudinal direction at appropriate intervals.

Further, as the bulging portion 9 of the sheet 7, as shown in FIG. 5, the bulging portion 9 may be formed by enclosing the large diameter rod-shaped body 8a and the small diameter rod-shaped body 8b in the sheet 7. According to this, even when an external force is applied to the seat 7, even if the small-diameter rod-shaped body 8b may be disengaged from between the projecting portion 3 of the frame 1 and the engaging projecting portion 4 of the plate-shaped member 5. The large-diameter rod-shaped body 8a can prevent the sheet 7 from coming off. The bulging portion 9 of the sheet 7 may be formed by forming a loop on the sheet 7 and inserting a rod-shaped body into the loop, or sewn or bonded a rod-shaped body or a bulging-shaped body. Good.

FIG. 6 shows a second embodiment of the present invention. In the seat tensioning device of this embodiment, the frame 1 is formed in a substantially rectangular cross section so as to have an upper side portion 1c, and an opening is provided between one side side portion 1a of the frame 1 and the upper side portion 1c. The part 2 is formed. A protrusion 3 is formed on the upper end of the inner surface of the side portion 1a, and an engaging protrusion 4 that engages with the protrusion 3 from the inside is provided on the lower end of the upper portion 1c. The plate member 5 is provided vertically. The other structure is the same as that of the first embodiment, and therefore the same reference numerals are given and the description thereof is omitted. FIG. 7 shows a modification of the seat tensioning device of FIG. In the seat tensioning device of this embodiment, the width of the upper side portion 1c of the frame 1 is formed to be short, and the plate member 5 is provided obliquely to the lower surface portion of the upper side portion 1c.

FIG. 8 shows a third embodiment of the present invention. In the seat tensioning device of this embodiment, the seat tensioning device of the first embodiment is formed symmetrically around the side portion 1b of the frame 1. FIG. 9 shows a modification of the seat tensioning device of FIG. In the sheet tensioning device of this embodiment, the sheet tensioning device of FIG. 7 is formed symmetrically around the side portion 1b of the frame 1. In the sheet tensioning device shown in FIGS. 8 and 9, two positions of the sheet 7 can be fixed, but it is also possible to fix the ends of the two sheets respectively. Since the other parts of the third embodiment are the same as those of the first and second embodiments, the same parts are designated by the same reference numerals and the description thereof will be omitted.

[0021]

[Effect of device]

 As described above, according to the seat tensioning device of the present invention, since it is configured as described above, the following excellent effects can be obtained.

1) By inserting the bulging portion provided on the sheet into the frame from between the protruding portion of the frame and the engaging protruding portion of the plate-shaped member against the elastic force of the plate-shaped member. Since the bulging part is locked inside the frame through the engaging protrusion of the plate-shaped member that returns by elastic force, the seat can be easily fixed and workability is improved. Can be achieved.

2) Since the pull-out force of the bulging portion generated by the wind pressure applied to the seat acts in the direction of engaging the engagement protrusion of the plate member with the protrusion of the frame, The seat will not come off and reliability can be improved.

3) The number of parts is small, which is advantageous in terms of management. Moreover, since the seat is not provided with holes such as screws, water leakage does not occur.

[Brief description of drawings]

FIG. 1 is a sectional perspective view of a seat tensioning device according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state in which a seat is fixed in the seat tensioning device of FIG.

FIG. 3 is a cross-sectional view showing a modified example of the joining structure of the plate-like members in the present invention.

FIG. 4 is a cross-sectional view showing another modified example of the plate-like member joining structure.

FIG. 5 is a cross-sectional view showing a modified example of the bulging portion provided on the seat.

FIG. 6 is a sectional view of a seat tensioning device according to a second embodiment of the present invention.

7 is a cross-sectional view showing a modified example of the seat tensioning device of FIG.

FIG. 8 is a sectional view of a seat tensioning device according to a third embodiment of the present invention.

9 is a cross-sectional view showing a modified example of the seat tensioning device of FIG.

[Explanation of symbols]

 1 Frame 2 Opening Part 3 Projection Part 4 Engagement Projection Part 5 Plate Member 7 Sheet 8 Rod-like Body 9 Swelling Part

 ─────────────────────────────────────────────────── ─── 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 (2)

[Scope of utility model registration request] 1. A channel-shaped frame having a protrusion on one side of the opening, and an engagement protrusion provided on the other side of the opening of the frame and engaging the protrusion from the inside at the tip. An elastic plate-like member and a bulge formed on the sheet to be stretched and inserted into and locked in the frame from between the protrusion of the frame and the engaging protrusion of the plate-like member. A seat tensioning device characterized by being provided. 2. The sheet tensioning device according to claim 1, wherein the bulging portion is formed by wrapping a rod-shaped body in the sheet.