JPH08112161A - Back face structure of seat back for automobile - Google Patents

Abstract

PURPOSE: To facilitate shaping-up of both side square parts of the rear surface side skin by bringing clips to fasten and install front and back skin surface side parts into contact with an outer peripheral surface of a seat back frame. CONSTITUTION: A pad 19 is put on an opening 20e of the front skin 20 from the front. Left and right side parts 20c and 20d of the front skin 20 are respectively inserted into left and right clips 25 and 26, and the left and right side parts 20c and 20d of the front skin 20 and left and right side parts 21c and 21d of the back skin 21 are respectively fastened and installed. A large number of ohm clips or the like become unnecessary, and installing performance is improved, and since an expensive slide fastener also becomes unnecessary, cost is reduced. On the other hand, respective inserting parts of the left and right clips 25 and 26 are respectively brought into contact with left and right frames (18c and d) of a seat back frame 18, and square parts 20f of the left and right side parts (20c and d) are shaped up in a smooth circular arc shape by elastic pieces. Since molding accuracy of both side square parts 19b of the pad 19 may be low, cost of a metal mold of the pad 19 can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a back structure of an automobile seat back, and more specifically, it is possible to form both side corners (corner parts) of a skin on the rear side of the seat back without increasing the size of the pad. It is designed to be easy and inexpensive.

[0002]

2. Description of the Related Art Generally, an automobile seat is composed of a seat cushion 1 and a seat back 2 as shown in FIG. 6, and a pocket 3 for storing a map or the like is provided on the back surface of the seat back 2. It is provided.

The seat back 2 is shown in FIG.
As in the first conventional technique shown in FIG. 1, the upper and both sides of the front skin 4 are fastened to the upper and both sides of the back skin 5 with binding threads or the like to form a bag. There is one in which the pad 6 is covered from above and the lower portions of the respective outer skins 4 and 5 are fixed to a seat back frame or the like with an ohm clip or the like.

Further, as in the second prior art shown in FIG. 7B, both side portions of the back surface skin 5 are vertically incised to cover the pad 6 from above, and then both sides of the front surface skin 4 are covered. In some cases, the slide fasteners 7 and 7 are used to fasten the portion and both sides of the back surface skin 5, respectively.

Further, as in the third prior art shown in FIG. 8 (A), the pad 6 is covered with an opening 4d surrounded by the upper and lower parts of the front surface skin 4 and both side parts from the front to form the upper and lower parts and both side parts. To
The hardback board 9 or the back cover 10 having the pockets 8 is fastened to the seat back frame or the like with a large number of ohm clips or the like, and the seat back frame or the like is provided with a large number of hooks or the like so as to cover the opening 4d. Some are locked to.

[0006]

However, in the first prior art described above, the workability of covering the outer skins 4 and 5 is poor, and the second
In the conventional technique, the slide fasteners 7 and 7 are very expensive, and in the third conventional technique, the backboard 9 or the back cover 10 is expensive and, as shown in FIG. 8B, a hard backboard 9 or the like. And the knees of the seated person in the rear seat
The knee space where 1 is located becomes narrow. Further, in each of the above-mentioned prior arts, a large number of ohm clips, hooks, etc. are required, resulting in poor assembling performance and high cost, and as shown in FIG. The shape of the parts 4e, 4e is formed by forming the side corners 6a of the pad 6,
6a, the molding accuracy of the both side corners 6a, 6a must be increased, the width of the pad 6 increases, the molding die for the pad 6 becomes expensive, and the seat back 2
However, there is a problem that the width increases and the size increases.

Therefore, an object of the present invention is to form the both side corners of the skin on the rear surface side of the seat back easily and at low cost without increasing the size of the pad, and for automobiles which is easy to assemble. It is to provide the back structure of the seat back.

[0008]

In order to achieve the above object, the present invention provides an opening surrounded by upper and lower portions and both side portions of a front surface of a seat back to form an opening. The opening of the epidermis is covered on the pad from the front, and a back skin having a shape corresponding to the opening of the front skin is provided, and the upper and lower parts of the back skin are fixed to the upper and lower parts of the front skin, respectively, while the back surface is fixed. Both sides of the outer skin of the front are secured to both sides of the front skin by clips that extend in the vertical direction, and each clip is brought into contact with the outer peripheral surface of the seat back frame, and The present invention provides a back structure for a vehicle seat back, which is characterized in that a shape-forming projection is integrally formed.

It is preferable that the projecting portion of each clip is formed on an elastic piece projecting outward so that both side corners of the skin on the rear surface side of the seat back are shaped by the elastic piece. Further, it is preferable that a spring leg portion is formed on the elastic piece of each clip and the spring leg portion is brought into contact with the outer peripheral surface of the seat back frame.

[0010]

According to the present invention, since the opening of the front surface skin can be covered with the pad from the front side, the covering workability is improved. In addition, both sides of the front surface skin and both sides of the back surface skin are respectively fastened with clips extending in the vertical direction, and each clip is brought into contact with the outer peripheral surface of the seat back frame. The cost is reduced because ohm clips and the like are not required, and the assemblability is good, and expensive slide fasteners are not required. Further, since the projections of the clips abutting on the seatback frame can be used to shape the both side corners of the skin on the rear side of the seatback, the forming accuracy of the both side corners of the pad may be low. In addition, it is not necessary to increase the width of the pad, the molding die for the pad becomes cheaper, the width of the seat back is reduced, and the size can be reduced. The knee space where the seated person's knees are located becomes wider.

When the elastic pieces formed on the clip shape the both side corners of the skin on the rear surface side of the seat back, tension is applied to the skin to improve the appearance. Further, if the spring leg portion formed on the elastic piece of the clip is brought into contact with the outer peripheral surface of the seat back frame, a large tension is always applied to the outer skin by the spring force of the spring leg portion, and the appearance is better. become.

[0012]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. As shown in FIG. 5, the vehicle seat includes a seat cushion 15 and a seat back 16, and a pocket 17 for storing a map or the like is provided on the back surface of the seat back 16. As shown in FIG. 1 which is a cross section taken along the line AA of FIG. 5 and FIG. 2 which is a vertical cross section taken along the line BB,
The seat back 16 has a pad 19 applied to the front portion of a seat back frame 18.

Of the skins 20 and 21 to be put on the pad 19, the front skin 20 has an upper portion 20a extending rearward.
A rectangular opening 20e surrounded by the lower portion 20b and both side portions 20c, 20d is formed, and the opening 20e is covered on the pad 19 from the front.

On the other hand, the back skin 21 is formed in a quadrangle shape corresponding to the opening 20e of the front skin 20, and the skin 21 has an upper portion 21a, a lower portion 21b and both side portions 21.
c and 21d are formed.

A large recess 19a is formed on the back surface of the pad 19 so as to match the outer shape of the seatback frame 18, and both side corners 19b, 19 of the pad 19 are formed.
In b, both side corners (Fig.
6a) is not formed, and is cut in the horizontal direction near the axis of the seatback frame 18.

As shown in detail in FIG. 3B, the upper portion 20a of the front surface skin 20 and the upper portion 21 of the rear surface skin 21 are described.
It is sewn with a binding thread 27a together with a, together with an upper clip 23 made of synthetic resin that has a U-shape with an upward cross section and extends in the left-right direction. As shown in FIG. 2, the upper clip 23 is fitted into the plate portion 18e extending downward from the upper frame 18a of the seat back frame 18 from below, thereby the upper portion 2 of the outer skin 20 on the front side.
0a and the upper portion 21a of the back surface skin 21 are fixed to each other.

As shown in detail in FIG. 3C, a lower clip 24 made of synthetic resin and having a U-shaped cross section and extending in the left-right direction is bound to the lower portion 20b of the front surface skin 20 by a binding thread 27b. Is sewn on. Then, the lower portion 21b of the back surface skin 21 is bent and inserted into the lower clip 24 from below, so that the lower portion 20b of the front surface skin 20 and the lower portion 21b of the back surface skin 21 are fixed to each other.
The lower clip 24 has a sewn portion 24a in contact with the outer peripheral surface of the lower frame portion 18b of the seatback frame 18.

On the other hand, as shown in detail in FIG. 3 (A), on the left side portion 21c of the back skin 21 is a synthetic resin left clip 2 which has a U-shape with a rightward section and extends vertically.
5 is sewn with a binding thread 27c. Then, by bending the left side portion 20c of the front surface skin 20 and inserting it into the left clip 25 from the right side, the left side portion 2 of the front surface skin 20 is bent.
0c and the left side portion 21c of the back surface skin 21 are fixed to each other.

The left clip 25 has an insertion portion 25a.
Is the left frame 18c of the seat back frame 18
Is in contact with the outer peripheral surface. The left clip 25 is integrally formed with a ring-shaped elastic piece 25b protruding outward to the left, and an outer surface 25c of the elastic piece 25b has a rear surface of the seat back 16, that is, a front surface in this example. In order to shape the corner portion 20f of the left side portion 20c of the outer skin 20,
It is shaped like a smooth arc.

Further, as shown in FIG. 1, the right side portion 21d of the back surface skin 21 has a U-shaped cross section which is leftward as shown in FIG. A synthetic resin right clip 26 extending in the vertical direction is sewn with a binding thread 27c. Then, by bending the right side portion 20d of the front surface skin 20 and inserting it into the right clip 26 from the left side, the right side portion 20d of the front surface skin 20 and
The right side portion 21d of the back skin 21 is fixedly attached.

The right clip 26 has an insertion portion 26a.
Is the right frame 18d of the seat back frame 18
Is in contact with the outer peripheral surface. The right clip 26 is integrally formed with an elastic piece 26b protruding outward to the right, and an outer surface 26c of the elastic piece 26b has an outer surface on the rear surface side of the seat back 16, in this example, a front surface skin 20. Right side 20
It is formed in a smooth arc shape so that the corner portion 20f of d can be shaped. The right clip 26 has the same shape as the left clip 25, and the left clip 25 is turned upside down to become the right clip 26.

A pocket skin 30 is arranged on the outer surface side of the back skin 21, and an upper portion 30a of the skin 30 is folded back inside and sewn with a binding thread 27f, as shown in FIG. As shown in FIG. 3 (C), 30b is sewn to the lower portion 21b of the back surface skin 21 with a binding thread 27g, and the left side portion 30c and the right side portion 30d are provided on the back side as shown in FIG. 3 (A). On the left side 21c and the right side 21d of the skin 21,
The left and right clips 25, 26 are sewn together with a binding thread 27c.

With the above structure, before covering the pads 19 of the seat back 16 with the skins 20 and 21, the front skin 2
The upper part 20a of 0 and the upper part 21a of the back skin 21 are
It is sewn together with the upper clip 23 with a binding thread 27a. A lower clip 24 is sewn to the lower portion 20b of the front surface skin 20 with a binding thread 27b. Furthermore, the left and right side portions 21c and 21d of the back surface skin 21 are sewn to the left and right side portions 30c and 30d of the pocket skin 30 together with the left and right clips 25 and 26 with binding threads 27c. Furthermore, the lower portion 30b of the pocket skin 30
Is sewn to the lower portion 21b of the back surface skin 21 with a binding thread 27g.

In the above state, the opening 20 of the front surface skin 20
The pad 19 is covered with e from the front. This covering work can be performed from the front of the pad 19 by utilizing the large opening 20e, so that the workability is good.

Then, while pulling each of the outer skins 20 and 21 in an appropriate direction, the upper clip 23 is fitted into the plate portion 18e of the seatback frame 18, and the front skin 2
The upper part 20a of 0 and the upper part 21a of the back skin 21 are fixed. Further, the left and right side portions 20c and 20d of the front surface skin 20 are inserted into the left and right clips 25 and 26, respectively, and the left and right side portions 20c and 20d of the front surface skin 20 and the left and right side portions of the rear surface skin 21 are inserted. 21c and 21d are respectively fastened. Further, on the lower clip 24, the back surface 21
Insert the lower part 21b of the
b and the lower part 21b of the back skin 21 are fixed.

The front surface skin 20 and the rear surface skin 21 can be basically fixed by four clips 23 to 26, so that a large number of ohm clips or the like as in the prior art are not required and assembled. The cost is low because it is easy to use and no expensive slide fastener is required.

On the other hand, the insertion portions 25a and 26a of the left and right clips 25 and 26 are brought into contact with the left and right frames 18c and 18d of the seatback frame 18, respectively. Since the outer surfaces 25c and 26c of the elastic pieces 25b and 26b of 26 contact the outer surface of the back surface of the seat back 16, specifically, the inner surfaces of the left and right side portions 20c and 20d of the front surface skin 20, respectively. By the elastic pieces 25c and 26c, the left and right side portions 20
The corners 20f and 20f of c and 21d are shaped into smooth arcs.

Therefore, it is not necessary to form the both side corners 20f, 20f of the outer skin 20 on the rear surface side of the seat back 16 at the both side corners 19b, 19b of the pad 19 as in the conventional case. Both corners 19b, 1
Since the molding precision of 9b may be low, the molding die for the pad 19 is inexpensive. Moreover, it is not necessary to increase the width of the pad 19, and the pad 19 can be cut to the position shown by the chain double-dashed line a or b in FIG. As the mold becomes cheaper, the width of the seat back 16 can be reduced and the size can be reduced. Moreover, since the recess 19a is formed in the pad 19, as shown by the two-dot chain lines c and d in FIG. As a result, the knee space where the occupant's knees of the rear seat is located can be widened.

On the other hand, as shown in FIG. 3A, the left and right side portions 20 of the front skin 20 are attached to the outer surfaces 25c and 26c of the elastic pieces 25b and 26b of the left and right clips 25 and 26, respectively.
Since the inner surfaces of the c and 20d are in contact with each other, the elastic force of the elastic pieces 25b and 26b causes the left and right side portions 20c and 20d.
The corners 20f, 20f of d are shaped into a smooth arc. Left and right side portions 20 of the front surface skin 20
The corners 20f and 20f of c and 20d are elastic pieces 25b and 2f.
Since it is shaped by the elasticity of 6b, the left and right side portions 20c,
Tension is applied to 20d to improve the appearance.

As shown in FIG. 4, U-shaped curled spring leg portions 25d and 26d are formed on the elastic pieces 25b and 26b of the left and right clips 25 and 26, respectively. 25d, 26d, the insertion portion 2
5a, 26a and the outer peripheral surfaces of the left and right frames 18c, 18d of the seatback frame 18 are respectively brought into contact with each other, the spring force of the spring leg portions 25d, 26d causes the left and right side portions 20c, 20d to move. Corners 20f, 20
A larger tension is always applied to f, and the appearance becomes better.

[0031]

As is apparent from the above description, in the rear structure of the automobile seat back according to the present invention, the opening of the front skin of the seat back is made to cover the pad from the front side, so that the covering workability is good. become. Also, since both sides of the front skin and both sides of the back skin are fastened by clips extending vertically, each clip is brought into contact with the outer peripheral surface of the seat back frame. The cost is reduced because individual ohm clips are not required, and the assemblability is good, and expensive slide fasteners are not required. Further, since the projections of the clips abutting on the seatback frame can be used to shape the both side corners of the skin on the rear side of the seatback, the forming accuracy of the both side corners of the pad may be low. In addition, it is not necessary to increase the width of the pad, the molding die for the pad becomes cheaper, and the width of the seat back can be reduced to reduce the size, while the seat occupant of the rear seat can be compared to the type with a backboard. The knee space where the knees are located becomes wider.

Further, since the elastic pieces formed on the clip can shape the both side corners of the skin on the rear surface side of the seat back, tension is applied to the skin and the appearance is improved. Further, if the spring leg formed on the elastic piece of the clip is brought into contact with the outer peripheral surface of the seat back frame, a large tension is always applied to the outer skin by the spring force of the spring leg, which improves the appearance. Become.

[Brief description of drawings]

FIG. 1 is a sectional view of a seat back according to the present invention, taken along line AA in FIG.

2 is a cross-sectional view of the seat back of FIG. 1 corresponding to line BB in FIG.

FIG. 3A is an enlarged view of a portion indicated by an arrow A in FIG. 1, and FIG.
2 is an enlarged view of an arrow B portion of FIG. 2, (C) is an enlarged view of an arrow C portion of FIG.

FIG. 4 is a sectional view of a modified example of the clip corresponding to FIG.

FIG. 5 is a perspective view of an automobile seat of the present invention.

FIG. 6 is a perspective view of a conventional automobile seat.

FIG. 7 (A) is a perspective view of a seat back of a first related art, and (B) is a perspective view of a seat back of a second related art.

FIG. 8A is a perspective view of a seat back according to a third prior art, and FIG. 8B is a cross-sectional view of FIG.

FIG. 9 is a cross-sectional view of a back structure of a conventional seat back.

[Explanation of symbols]

16 ... Seat back, 17 ... Pocket, 18 ... Seat back frame, 19 ... Pad, 20 ... Front surface skin, 20
a ... upper, 20b ... lower, 20c, 20d ... both sides, 2
0e ... Opening, 20f ... Corner, 21 ... Back surface skin, 21a
... top, 21b ... bottom, 20c, 20d ... both sides, 2
5, 26 ... Clip, 25b, 26b ... Elastic piece, 25
d, 26d ... Spring legs.

Claims (3)

[Claims] 1. An opening surrounded by upper and lower portions and both sides of the front skin is formed in a front skin of a seat back, and an opening of the front skin is covered with a pad from a front side, and the front skin opening is formed. A back skin having a shape corresponding to the above is provided, and the upper and lower parts of the back skin are fastened to the upper and lower parts of the front skin, respectively, while both sides of the back skin are attached to both sides of the front skin. Each clip is fixed to the outer peripheral surface of the seat back frame, and each clip is integrally formed with a protrusion for shaping the skin. The characteristic back structure of the automobile seat back. 2. The projecting portion of each clip is formed on an elastic piece projecting outward, and the elastic piece shapes the both side corners of the outer skin on the rear surface side of the seat back. The back structure of the vehicle seat back according to claim 1. 3. The seat back for an automobile according to claim 2, wherein a spring leg portion is formed on the elastic piece of each clip, and the spring leg portion is brought into contact with the outer peripheral surface of the seat back frame. Back structure.