JPH04792Y2 - - Google Patents

Description

[Detailed Description of the Invention] <<Industrial Application Field>> The present invention relates to a trim cover end processing structure for a vehicle seat that fixes the end portion of a trim cover that covers a pad material of a vehicle seat.

<<Prior Art>> In a vehicle seat such as an automobile, force is applied to the seat cushion or seat back in a direction along its surface as the seat accelerates, decelerates, changes direction, etc. Therefore, in order to prevent the trim cover covering the surface of the seat pad material from being peeled off by any force, it is necessary to fix the end portion of the trim cover to the seat frame or the like.

Therefore, various methods have been used to fix the end portion of the trim cover. One of the well-known structures for this means is a structure in which the four side end portions of the trim cover are folded into the bottom side of the seat frame, and these end portions are hooked to the seat frame with hog rings. In this structure, the end portions of each of the four sides of the trim cover are folded back and sewn together to form a long bag-like shape, and a metal wire is housed in this bag-like shape. Then, a plurality of locking holes are provided on the bottom periphery of the seat frame to which the end portion of the trim cover is fixed by cutting and raising a part of the frame, and the wires of the end portion folded into the bottom side and the seat frame are connected to each other. The locking hole is locked with a hog ring.

[Problems to be solved by the invention] However, with this structure, the wire must be stored inside the bag before the terminal is fixed, and a special attachment device (called a hog ringer) is required to attach the hog ring. This is necessary, and there is concern that the vibration or impact of the hog ringer may have an adverse effect on the body of the worker, such as tendonitis or injury.
Furthermore, the hog ringer is relatively heavy to hold by hand, making it difficult to work with. In addition, since it is hung with a thin hog ring, the position may not be fixed and the fixing part may not be pulled evenly, which results in wrinkles that impair the appearance.

The present invention was developed in view of the above-mentioned problems, and it is possible to securely and easily fix the end portion of the trim cover, improve work efficiency, reduce the number of parts and reduce costs, and at the same time. An object of the present invention is to provide a trim cover terminal processing structure for a vehicle seat that improves the appearance of a fixed part.

<Means for Solving the Problems> In order to achieve the above object, the present invention provides a trim cover end processing structure for a vehicle seat that fixes the end portion of a trim cover covering a pad material, and a A plate-shaped elastic locking piece having a locking part of the shape is provided on the terminal part, and the locking piece is inserted in a torsionally deformed state into the member that fixes the terminal part, and after insertion, the deformation is prevented. The structure is such that a long through hole is provided on the periphery when the locking member returns to engage with the locking portion.

<<Operation>> According to the present invention, engagement and fixation can be easily achieved by inserting the elastic locking piece on the terminal side in a torsionally deformed state into the elongated through hole of the member that fixes the terminal section. Furthermore, since the plate-shaped locking piece is inserted into a long through hole formed at a predetermined position, the attachment position is inevitably determined. Further, the locking piece has a plate shape, and the width at which the locking piece and the end portion connect with each other is also wide. Therefore, the force of attraction between the locking piece and the end portion is also dispersed at the connecting portion, and since no local force is applied, wrinkles do not occur at the end portion.

<<Example>> Hereinafter, an example of the present invention will be described in detail based on the drawings.

1 to 5 show essential parts of a seat cushion to which a trim cover end processing structure for a vehicle seat according to an embodiment of the present invention is applied.

In FIGS. 1 to 5, the seat cushion 1 includes a metal seat frame 2 to which a cushion spring 13 is attached, a pad material 3 made of foamed urethane or the like supported on the frame 2, A trim cover 4 is provided to cover the outer surface of the pad material 3.

The frame 2 has a square frame shape with an opening 5 formed in the center, and has a side wall 6, an upper wall 7 and a bottom wall that are bent inward from the upper and lower ends of the side wall 6. 8 (see Figure 2).
The bottom wall portion 8 is provided with a plurality of elongated through holes 9 which are formed at multiple points along the left and right side walls 6, and each of the through holes 9 is formed at a predetermined inclination with respect to the side wall portions 6. It is formed.

The trim cover 4 is attached to cover the pad material 3 from above, and the end portions 10 on each side that cover the four sides of the pad material 3 can be pulled into the lower surface of the bottom wall portion 7. ing. A plurality of locking pieces 11 are attached to end portions 10 located on the left and right sides of the pad material 3 in correspondence with the elongated through holes 9. As shown in FIG. 5, the locking piece 11 is made of synthetic resin and has elasticity, and is bent inward at a substantially right angle in the middle to form a substantially L-shape. One bent plate part 12 is fixed by sewing or the like in a state in which its surface is in contact with the inner surface of the terminal part 10, and the other bent plate part 14 is inserted into the long through hole 9.
A locking portion 15 is formed at the tip of the bending plate portion 14 and protrudes to both left and right sides.

Further, the pad material 3 covered with the trim cover is placed on the upper wall portion 7 of the frame 2, and each end portion 10 is fixed to the frame 2 in this state.

The left and right terminal portions 10 are fixed to the frame 2 in the following manner. First, the outer peripheral part of the upper surface of the pad material 3 is pressed downward and compressed, and each terminal part 10 is pulled toward the lower surface side of the bottom wall part 8, and the bent plate part 14 of each locking piece 11 is inserted into the elongated through hole 9. have it inserted. At this time, since there is an angle between the width direction of the bent plate part 14 and the direction in which the through hole 9 extends, the bent plate part 14 is twisted to match the direction of the long through hole 9. It is inserted in an elastically deformed state (the state shown by the dashed line in FIG. 3). When the locking part 15 of the bent plate part 14 passes through the long through hole 9, the bent plate part 14 after passing is formed to be sufficiently smaller than the width of the locking part 15, so that the bent plate part 14 is inside the long through hole 9. It rotates and elastically returns to the state before twisting. With this return, the locking portion 15
is engaged with the periphery of the elongated through hole 9 on the back side of the frame 2, as shown by the solid line in FIG. Therefore, with this engagement, the locking piece for the frame 2 has 11
By sequentially performing this fixing for each locking piece 11, the terminal portion 10 can be reliably fixed to the frame 2.

Further, the front and rear terminal sections 10 may be fixed with a structure different from this structure, or may be fixed in the same manner as the left and right terminal sections 10.

Therefore, with this structure, the left and right end portions 10 can be connected to the frame 2 by simply pulling each end portion 10 against the frame 2 and inserting the locking piece 11 into the through hole 9 with the locking piece 11 twisted and deformed. It can be easily and securely fixed without using wires or wires. Also, the number of parts can be reduced. Furthermore, when it is desired to unfix the terminal portion 10 again, it can be easily removed by elastically deforming the locking piece 11 in the same direction as when it was attached. Further, since the locking piece 11 is inserted into the elongated through hole 9 formed in advance at a predetermined position in the frame 2, the mounting position is determined and the product accuracy is also stabilized. Furthermore, the locking piece 11 is connected to the terminal portion 1.
Since it is formed in a plate shape along the lower side of the wire and is widely connected to the terminal portion 10, the pulling force at each connecting portion is dispersed, and no local force is applied. As a result, the terminal portion 10 is not wrinkled.

In the above embodiment, the through hole 9 is connected to the frame 2.
Although the structure is shown in which it is formed on the bottom wall portion 8 of the present invention, it is not necessarily necessary to provide it on the bottom wall portion 8, and it may be provided at any position where the terminal portion 10 is planned to be fixed. Further, it does not necessarily have to be the frame 2, but may be provided on another fixing member to which the terminal portion 10 is planned to be fixed.

<<Effects of the invention>> As is clear from the above explanation, according to the trim cover end processing structure of the present invention, the end portion of the trim cover can be easily and reliably fixed without using a hog ring attached with a hog ringer. At the same time, the number of parts can be reduced, improving work efficiency and reducing costs. Furthermore, since wrinkles and the like do not occur at the terminal portion, the appearance of the fixed portion is also improved.

[Brief explanation of the drawing]

FIG. 1 is a partially exploded schematic configuration diagram showing a seat cushion to which the vehicle seat trim cover end processing structure according to the present invention is applied, and FIG.
FIG. 3 is a partially enlarged view taken along line A-A in FIG. 2; FIG. 4 is a perspective view of essential parts of the seat cushion shown in the figure; FIG. 5 is a perspective view showing essential parts of the trim cover in the seat cushion. 1... Seat cushion, 2... Frame, 3
... Pad material, 4 ... Trim cover, 9 ... Long through hole, 10 ... End portion, 11 ... Locking piece.

Claims (1)

[Scope of utility model registration request] A trim cover end processing structure for a vehicle seat that fixes an end portion of a trim cover covering a pad material, wherein a plate-shaped elastic locking piece having a hook-shaped locking portion at the tip is provided at the end portion; , the locking piece is inserted in a torsionally deformed state into the member on the side that fixes the terminal portion, and after insertion, the deformation is restored and a through hole is provided on the periphery in which the locking portion engages. A vehicle seat trim cover terminal processing structure featuring: