JP3918127B2 - Automotive seat cushion - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in an automobile seat cushion.
[0002]
[Prior art]
BACKGROUND ART A seat cushion for an automobile is assembled by assembling a cushion pad on a cushion frame, enclosing the cushion pad with a trim cover, and fastening a terminal of the trim cover to the cushion frame.
[0003]
The trim cover is made by stitching the seat, side, and rear pieces from the front to the three-dimensional shape according to the outer shape of the cushion pad, and sewing the bottom piece of the under cover to the end of the rear piece. Is provided.
[0004]
The trim cover covers the cushion and the side piece from the front and the rear piece, winds each end inside the cushion frame and fastens it with a C-ring, and turns the lower piece into the lower part of the cushion frame and turns it into a C-ring. It is attached to the cushion pad.
[0005]
The seat cushion has a trim cover in which each piece of the seating surface, side surface, and rear surface from the front side is sewn in a three-dimensional shape to match the outer shape of the cushion pad, and is assembled by simply covering this trim cover on the cushion pad. Therefore, there is a possibility that the trim cover and the cushion pad may be loosened due to a shape deviation or the trim cover may be displaced due to the seating of the occupant.
[0006]
At the same time, since each terminal of the trim cover is fixed by entanglement using a C-ring, the work of fixing the terminal of the trim cover is extremely troublesome.
[0007]
[Problems to be solved by the invention]
SUMMARY OF THE INVENTION An object of the present invention is to provide an automobile seat cushion that can be closely assembled with a cushion pad and can be easily and securely fastened to the terminal end of the trim cover and can be easily assembled.
[0008]
[Means for Solving the Problems]
The automotive seat cushion according to the present invention is a cushion pad assembled to a pan frame, and the cushion pad is covered with a trim cover, and the end of the trim cover is fastened to the flange portion of the pan frame.
Fold the flange part of the rear frame part downward U-shaped from the inner wall surface that rises from the bottom frame part, and wrap the rear claw on the inner side of the downward U letter with the hooking claw provided near the front of the bottom frame part A trim cover with a J-shaped trim cord that sews the rising base to the winding end of the rear end and directs the latching edge outward, and a retaining hole is provided in the front end side and the rear end side. With a bottom piece sewn to the winding end of the trim cover,
Along with the rising base of the trim cord, the winding end of the trim cover and the rear end of the bottom piece are inserted inside the downward U shape, and the rear end of the trim cover is attached to the flange of the rear frame with the trim cord retaining edge. In addition, the front end is hooked on the hooking pawl of the pan frame with a stop hole, the lower surface piece is turned and fixed to the lower side of the pan frame, and the entire cover is pulled with the lower surface piece from the rear side. The trim cover is attached to the cushion pad.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, referring to the attached drawings, in the illustrated embodiment, as shown in FIG. 1, a pan frame 1 is provided as a cushion frame, and a cushion pad 2 is mounted on the pan frame 1 for assembly. Is assembled with a trim cover 3, and the end of the trim cover 3 is fastened to the flange portion of the pan frame 1 to be assembled as a seat cushion for an automobile.
[0010]
As the pan frame 1, the front frame portion 10, the left and right side frame portions 11, 12 and the rear frame portion 13 are framed in a substantially quadrangular shape from the peripheral flange portion, and the bottom frame portion 14 is replaced with each frame portion 10-13. What was formed indented more inside is provided. In this pan frame 1, the rear frame portion 13 is formed so as to protrude with a narrower width than the front portion on the inner wall surface of the upward slope that continues from the bottom frame portion 14.
[0011]
In the configuration of the pan frame 1, the peripheral flange portions of the front frame portion 10, the left and right side frame portions 11, 12 and the rear frame portion 13 are formed to be bent downwardly in a U shape from the inner wall surface rising from the bottom frame portion 14. ing. Further, the pair of left and right hooking claws 15 and 16 are provided on the bottom frame portion 14 by notching the front portion of the frame surface.
[0012]
As the cushion pad 2, what was foam-molded from foamed resin, such as urethane, to a predetermined three-dimensional shape is provided. The seat surface of the cushion pad 2 has left and right sides raised from the center, and the bottom surface (but hidden in FIG. 1) fits with the bottom frame portion 14 of the pan frame 1 and the circumference is the front surface. The frame 10, the left and right side frame parts 11 and 12, and the rear frame part 13 are formed so as to be mounted on the circumferential flange part.
[0013]
The trim cover 3 forms a seat surface piece 30 from the center surface 30a continuing from the front surface and the left and right bank surfaces 30b, 30c, and sews the left and right side pieces 31 (32) integrally with the seat surface piece 30, The rear piece 33 and the lower piece 34 of another piece are sewn together, and the lower piece 34 is sewn to the rear end of the seat piece 30 from the rear piece 33 so as to be separated from the left and right side pieces 31 (32). .
[0014]
The trim cover 3 is provided with a pair of left and right retaining holes 35 and 36 on the front end side surface of the lower surface piece 34 for engaging with the hooking claws 15 and 16 of the pan frame 1. In addition, a suspension allowance 37 (38) is provided in which a portion close to the rear portion of the side piece 31 (32) is pulled and secured by cutting out the inside of the rear portion of the side piece 31 (32).
[0015]
A trim cord 4 having a J-shape is formed at the winding end of the side piece 31 (32) from the seating piece 30 and the stitching end of the rear piece 33 and the lower piece 34, including the end of the lifting allowance 37 (38). Is provided. The trim cord 4 is exemplified by the front end of the seating piece 30 in FIG. 2, and the rising base 4a is sewn to the winding end of the seating piece 30 and the latching edge 4b is directed outwardly, It is attached inside the seat surface piece 30 so that the terminal of the piece 30 may be wound and held.
[0016]
The trim cord 4 is individually attached to each piece together with the end of the suspension allowance 37 (38) and the stitched ends of the rear piece 33 and the lower piece 34. Further, except for the end of the lifting allowance 37 (38) and the stitched end of the rear piece 33 and the lower piece 34, the seat piece 30 is continuously attached to the winding end of the side piece 31 (32).
[0017]
With the above-described components, the cushion pad 2 is assembled to the pan frame 1 and encased by the trim cover 3, and the end of the trim cover 3 is fastened to the flange portion of the pan frame 1. Assemble the seat cushion. In this assembly process, the front cover of the seat piece 30 shown in FIG. 3 is illustrated as an example. The trim cover 3 holds the trimming edge 4b of the trim cord 4 on the flange portion of the front frame portion 10 and the side piece from the seat piece 30. 31 (32) terminal is fixed.
[0018]
Similarly, the end of the suspension allowance 37 (38) is also hooked on the flange portions of the side frame portions 11, 12 by the trim cord 4. The suspension allowance 37 (38) is formed so that the flange portion of the rear surface frame portion 13 protrudes with a narrower width than the front portion on the inner wall surface of the upward slope that continues from the bottom surface frame portion 14, and thus the rear surface frame portion. 13 is pulled and fixed to the side frame portions 11 and 12.
[0019]
Finally, as shown in FIG. 4, together with the rising base 4 a of the trim cord 4, the winding end of the trim cover 3 and the rear end side of the lower surface piece 34 are inserted inside the downward U-shape so that the rear end of the trim cover 3. Is fastened to the flange portion of the rear frame portion 13 by the latching edge 4b of the trim cord 4, and further, as shown in FIG. The lower surface piece 34 is turned around and fixed to the lower side of the pan frame 1 by being hooked on the hooking claws 15 and 16.
[0020]
The rear piece 33 is separated from the left and right side pieces 31 (32) and is sewn to the rear end of the seat piece 30. Therefore, the rear piece 33 is pulled to tension the entire cover from the seat piece 30 and the flange of the rear frame portion 13 is pulled. It is hooked and fixed to the part. Thereby, the trim cover 3 can be attached in close contact with the cushion pad 2. In addition, since the wrapping terminal of the lower surface piece 34 is hooked to the hooking claws 15 and 16 of the pan frame 1 by the stop holes 35 and 36, the lower surface piece 34 can cooperate with the pulling by the rear surface piece 33 and can prevent the drooping. .
[0021]
Although the above-described embodiment has been described based on the trim cover 3 in which the seat piece 30 is continuously formed from the front surface, the embodiment can also be applied to a case in which the front surface and the seat surface are formed as separate pieces.
[0022]
【The invention's effect】
As described above, according to the automobile seat cushion of the present invention, the trim cover is inserted with the rising base portion of the trim cord, the winding end of the trim cover, and the rear end side of the bottom piece inside the downward U-shape. The trim cover is attached to the cushion pad by fastening the rear end of the rear end to the flange of the rear frame with the retaining edge of the trim cord and pulling the entire cover with the bottom piece from the rear side. It can be attached in close contact with the cushion pad, preventing loosening due to shape deviation between the trim cover and the cushion pad and slippage of the trim cover due to the seating of the occupant.
[0023]
In addition, the bottom end of the lower part of the trim cover is hooked to the catch of the pan frame with a retaining hole, and the lower part of the lower part is turned to the lower side of the pan frame and fastened. The trim cord can be prevented from going out, and the entire cover can be pulled directly to attach it to the cushion pad, preventing drooping.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a seat cushion for an automobile according to the present invention developed in each component.
2 is a partial perspective view mainly showing a trim cord provided in the trim cover of FIG. 1; FIG.
3 is a partial perspective view showing a trim cover that is secured to a terminal by the trim cord of FIG. 2; FIG.
4 is a cross-sectional view showing the rear side of the automobile seat cushion assembled from the components shown in FIG. 1. FIG.
5 is a cross-sectional view showing the rear side from the middle part of the automobile seat cushion assembled from the components shown in FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pan frame 13 Rear frame part 14 Bottom frame part 15,16 Hook nail | claw 2 Cushion pad 3 Trim cover 34 Trim cover bottom piece 35,36 Bottom piece stop hole 4 Trim cord 4a Trim cord rising base 4b Trim cord rise Latching edge

Claims (1)

In the seat cushion for automobiles, the cushion pad is assembled to the pan frame, the cushion pad is covered with the trim cover, and the end of the trim cover is fixed to the flange portion of the pan frame.
Fold the flange part of the rear frame part downward U-shaped from the inner wall surface that rises from the bottom frame part, and wrap the rear claw on the inner side of the downward U letter with the hooking claw provided near the front of the bottom frame part A trim cover with a J-shaped trim cord that sews the rising base to the winding end of the rear end and directs the latching edge outward, and a retaining hole is provided in the front end side and the rear end side. With a bottom piece sewn to the winding end of the trim cover,
Along with the rising base of the trim cord, the winding end of the trim cover and the rear end of the bottom piece are inserted inside the downward U shape, and the rear end of the trim cover is attached to the flange of the rear frame with the trim cord retaining edge. In addition, the front end is hooked on the hooking pawl of the pan frame with a stop hole, the lower surface piece is turned and fixed to the lower side of the pan frame, and the entire cover is pulled with the lower surface piece from the rear side. An automobile seat cushion, wherein a trim cover is attached to a cushion pad.

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