JPH01313084A - Stretch attaching tool for sheet skin and method for stretch attachment thereof using the same - Google Patents

Abstract

PURPOSE:To tense a stretch attached cloth fully without use of a hog ring by installing a detent boss on one of the base boards for restraining them in overlapped condition, and providing a slit on the other base board for inserting the detent boss and fix. CONSTITUTION:When an upper base board 7 is overlapped over a lower base board 8, a detent boss 11 on this upper base board 7 is fitted and fixed in/to a slit 13 formed in a lower base board 8, and thus the two base boards 7, 8 can be restrained and held in closed condition. Thereby the skin 3 can be held in tensed condition. Because the detent boss 11 penetrates fully the slit 13 to provide close contact of the upper base board 7 with the lower one 8, which enables reduction of the thickness of a stretch attaching tool A in the condition the two base boards 7, 8 are overlapped one over the other. This reduces influence of the stretch attaching tool A wherein the tool A might locally bulge the skin 4 in tensed condition.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a tensioning tool used when tensioning fabric such as the skin of an automobile seat, and a method for using the tensioning tool in an automobile seat or the like. The present invention relates to a method for attaching a skin to a sheet that has been heated.

(Prior Art) In the seat back of an automobile seat, as shown in Fig. 4, a cover set wire e is attached to both sides c and d of the skin (upholstery fabric) b covering the seat back body a, which are connected to each other. The two ends of the C-shaped hog ring f are hooked onto the respective cover set wires e, and the two sides C1d of the hog ring are pulled together and the outer skin is kept under tension. Both ends of such a hog ring f are sharply pointed so that they can easily pierce the skin made of a durable material such as leather.

(Problems to be Solved by the Invention) However, in the conventional example described above, it is difficult to sufficiently pull both sides together by simply clamping the hog ring, so both sides must be sufficiently pulled together when clamping. This tensioning work is carried out manually close to the point where the hog ring is to be hung, but since both ends of the hog ring are sharply pointed, there is a problem in that the tensioning work is very dangerous.

In addition, it is necessary to hook the hog ring while keeping both sides of the tensioned fabric drawn together, and the work must be carried out in an unstable state, resulting in the problem of time-consuming work and poor work efficiency. be.

Furthermore, after tensioning, as shown in Fig. 5, the edges C of the skin are partially connected by the hog rings R, which causes wrinkles in the direction of tension, resulting in an unsightly appearance. .

In view of the above-mentioned problems, the present invention provides a tensioning tool that can sufficiently tension the tensioned fabric without using a hog ring, is safe to work with, and does not cause wrinkles in the tensioning direction of the tensioned fabric. It is an object of the present invention to provide a method for tensioning a skin on a sheet using this tensioning tool.

(Means for Solving the Problems) The tensioning tool of the present invention has a set of plate-like substrates that can be fixed to both sides of a tensioning cloth that are connected to each other, and both plate-like substrates can be connected to and detached from each other. A shaft portion and a hook portion are provided which are connected to each other and are movable relative to each other in a direction in which both plate-like substrates are overlapped with each other in a connected state, and the plate-like substrates are placed on one of both plate-like substrates in a superposed state. The latching protrusion to be restrained is characterized in that a slit for engaging and fixing the latching protrusion is provided in the other of both plate-like substrates.

The method for tensioning the skin on a sheet using the above-mentioned tensioning tool of the present invention is to fix the plate-like substrates of IMi to both mutually connected side parts of the skin covering the sheet main body, and to attach both plate-like substrates to the shaft part. After securing and connecting the hook portions, both plate-shaped substrates are rotated relative to each other in the direction in which they are overlapped, and the both side portions are drawn together, and the hook pieces are engaged and fixed in the latching slits to separate both plates. The method is characterized in that the skin is stretched by restraining the shaped substrates in an overlapping state.

(Function) In the above configuration, by connecting the shaft portion and the hook portion of each other with a pair of plate-like substrates fixed to each of the mutually connected side portions of the tension fabric (skin), Both sides of the installation can be connected. At this time, since there is no need to tension the stretched fabric by pulling both sides together, the connection work is easy. Next, both connected plate-like substrates are rotated relative to each other in a direction in which they are superimposed on each other. With this rotation, the sides fixed to the respective plate-like substrates are drawn toward each other, gradually tensioning the stretched fabric. When both plate-shaped substrates are superimposed, both sides are pulled together to the maximum, and the tension state of the stretched fabric can be maximized. Further, at the same time when the drawing board-like substrates are superimposed, the retaining protrusion is inserted into the slit and fixed, thereby restraining both the planar-like substrates in the superimposed state. Thereby, the tensioned cloth can be stretched while reliably maintaining the tensioned state.

In this way, the tensioning work of the tensioned fabric can be performed without using hog rings, so the danger of work caused by hog rings can be eliminated.

In addition, after connecting a pair of plate-shaped substrates, it is possible to continuously pull both sides together and maintain tension by simply rotating the two plate-shaped substrates relative to each other, which saves time and effort during the tensioning process. It does not take much time and can improve work efficiency.

Furthermore, after tensioning, the sides are fixed to the plate-like substrate and the tensioned fabric can be tensioned uniformly, so wrinkles in the tensioning direction occur in the tensioned fabric due to partial connections between both sides. This problem of the conventional example can be solved.

(Example) FIGS. 1 to 3 show an example in which the present invention is applied to a method for tensioning a skin on a seat back of an automobile seat.

The seat back body (seat body) l includes a seat back frame (not shown) covered with a seat back pad 2. As shown in FIG. 3, the leather skin (upholstery fabric) 3 that covers the seat back body 1 has a front side part 3a that covers the front side of the seat back body 1, a back side part 3b that covers the back side of the seat back body 1, and It includes a lower surface side portion 3C that covers the lower surface. The front side part 3a and the back side part 3b are sewn together at the upper end of the seatback main body 1 with the bead 4 in between. The front side portion 3a and the lower side portion 3c are directly sewn together at the lower end of the seat back body l. And the lower side part (side part) 5 of the back side part 3b and the lower side part 3C
The rear side portion (side portion) 6 of the seat back body 1 is connected to the rear side portion 6 at the lower back surface of the seat back main body l by a tensioning tool A as shown in FIG.

This tensioning equipment A consists of a set of strip-shaped substrates (plate-shaped substrates) 7.8
Consisting of The vehicle width dimension is 5.6 on both sides and - on the road. The upper substrate 8 sewn to the lower side portion 5 has a shaft portion 9 extending in the vehicle width direction at its lower end, and openings 10 are provided above the shaft portion 9 at a plurality of locations. A hook piece 11 is provided at the upper edge of the opening 1O and projects toward the back side.

On the other hand, the lower substrate 8 sewn to the rear side 6 has the opening 10
Inverted U-shaped hook portions 12 are provided protrudingly at several locations on the upper end corresponding to . The tip of the hook portion 12 is bent toward the back side. The hook portions 12 can be engaged with and detached from the shaft portions 9 at corresponding openings 10 of the upper substrate 7, respectively. Then, when the hook portion 12 engages with the shaft portion 9, the upper substrate 7
and the lower substrate 8 are connected to be relatively rotatable about the axis of the shaft portion 9 as a rotation center. Inside the tip of the hook part 12,
A protrusion 13 that prevents the shaft portion 9 in the engaged state from being pulled out.
is provided. Further, a slot 4 is provided below the hook portion 12 of the upper substrate 8, into which the latching protrusion 11 of the upper substrate 7 is fitted and fixed.

Although the substrate 7.8 of this embodiment is made of synthetic resin such as PVC, the portion to be sewn to the side portion 5.6 is formed into a thin piece of soft synthetic resin that can be sewn, and the shaft portion 9, The portions where the hook portion 12, the latching protrusion 11, and the slit 14 are provided are formed into a thick piece of hard synthetic resin with high rigidity to integrate them. Further, in this embodiment, a protruding wall 15 is provided on the front side of the lower portion vi, 8 facing the seatback body 1 to restrict vertical movement of the lower substrate 8 along the seatback pad 2.

In the above configuration, the skin 3 is placed over the seatback main body 1, and the lower side 5 of the back side portion 3b and the rear side 6 of the lower side portion 3c are drawn toward each other at the lower back side of the seatback main body 1. Then, the shaft portion 9 of the upper substrate 7 of the lower side portion 5 and the hook portion 12 of the lower substrate 8 of the rear side portion 6 are engaged, and the upper substrate 7 (imaginary line) and the lower It is connected to the substrate 8 (solid line). At this time, the drawing of the lower side part 5 and the rear side part 6 is for connecting the side substrates 7.8, and there is no need to draw them together with a large tensile force. Also hook part 12
The shaft portion 9 engaged with the hook portion 12 is restrained from detaching from the hook portion 12 by the protrusion 13 .

With the side substrates 7.8 connected, the upper substrate 7 is attached to the shaft portion 9.
It is rotated downward (in the direction of the arrow in Fig. 2) about the axis of rotation. At this time, the protruding wall 15 of the lower substrate 8 is pressed against the seat back pad 2, and the lower substrate 8 is restricted from moving in the vertical direction along the surface of the seat back pad 2.
Since the rotation center is held at a substantially fixed position, the upper substrate 7 can be smoothly rotated downward.

As the upper substrate 7 rotates downward, the lower side 5 of the back side portion 3b
is pulled downward, and the epidermis 3 is gradually tightened. When the upper substrate 7 is rotated to the position where it is overlapped with the lower substrate 8 (solid line in FIG. 2), the lower side portion 5 is attached to the rear side portion 8 of the lower surface side portion 3c.
2, it is pulled downward by the dimension shown in FIG. This allows the epidermis 3 to be tensed by the aforementioned dimensions.

Furthermore, when the upper substrate 7 is superimposed on the lower substrate 8, the latching protrusion 11 of the upper substrate 7 is fitted into the slit 13 of the lower substrate 8 and fixed.
The side substrates 7.8 can be held captive in the closed position. Thereby, the epidermis 3 can be maintained in a tensioned state. In addition, in this embodiment, since the latching protrusion 11 completely penetrates the sulin 13 and allows the upper substrate 7 to be brought into substantially close contact with the lower substrate 8, it is possible to attach the upper substrate 7 and the lower substrate 8 in a state where both substrates 7 and 8 are overlapped. As a result of being able to reduce the thickness of tool A,
It is possible to reduce the influence of the tensioning tool A, which locally raises the skin 4 which is under tension.

The present invention can be configured in various ways other than those shown in the above embodiments.

For example, in the above embodiment, one plate-shaped substrate has a shaft portion and a hook piece, and the other plate-shaped substrate has a hook portion that engages with the shaft portion and a locking slit into which the hook piece is inserted and fixed. However, if the shaft part and the hook part are provided alternately on one plate-shaped substrate, and the hook pieces and the hook slits are provided alternately,
The tensioning tool of the present invention can be constructed using the same substrate.

It should be noted that the tensioning tool of the present invention is not limited to those shown in the above embodiments, and can of course be used for tensioning work of various tensioned fabrics.

(Effects of the Invention) According to the present invention, the tensioned fabric can be sufficiently tensioned without using a hog ring, the work is safe, and the tensioned fabric does not wrinkle in the tensioning direction. It is possible to provide a tool and a method for tensioning a skin on a sheet using the tensioner.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of main parts showing an embodiment of the present invention;
The figure is a longitudinal sectional side view of the main part showing its operation, Fig. 3 is a partially cutaway perspective view seen from the back side, Fig. 4 is a longitudinal sectional side view of the main part of the conventional example, and Fig. 5 is its perspective view. It is.

Claims (2)

[Claims] (1) Both plate-shaped substrates are removably connected to a pair of plate-shaped substrates that can be fixed to each of the mutually connected sides of the tension cloth, and both plate-shaped substrates are stacked on top of each other in a connected state. A hook part and a shaft part that can be rotated relative to each other in the direction of rotation are provided, and a latching protrusion that restrains these plate-shaped substrates in an overlapping state is provided on one of the two plate-shaped substrates. A tensioning tool characterized in that each of the slits is provided with a slit into which the locking protrusion is inserted and fixed. (2) One set of plate-shaped substrates is fixed to both sides of the skin covering the seat body that are connected to each other, and after connecting both plate-shaped substrates by engaging the shaft part and the hook part, both plate-shaped substrates are attached. The substrates are relatively rotated in a direction in which they are overlapped with each other to draw the two side portions together, and the locking protrusions are engaged and fixed in the slits to restrain both plate-like substrates in the overlapped state and stretch the skin. A method for tensioning a skin on a sheet using the tensioning tool according to claim 1.