JPH0574396U - Center-folded seat back pad structure - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the bendability in the front-rear direction of a foam upper pad constituting an upper seat back in a middle-folded seat back for an automobile seat. [Structure] The upper pad (1) and the lower pad (2) are provided with slits (41) and (42) for separating the upper pad (1) and the lower pad (2) at the center of the seating portion, and It is characterized by improving bendability.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a seat back (back portion) of an automobile seat (seat), and more specifically, to a foam pad for a center-folded seat back in which an upper portion of the seat back is formed to be tiltable in a front-back direction with respect to a lower portion. Regarding the structure.

[0002]

[Prior Art]

 In the conventional center-folded seat back, a lower frame that constitutes the lower seat back is connected to an upper frame that constitutes the upper seat back so as to be tiltable in the front-rear direction, and the upper and lower frames are connected to the upper seat back. In some cases, a foam pad composed of an upper pad that constitutes the upper pad and a lower pad that constitutes the lower seat back integrally with the upper pad is covered with a trim cover.

[0003]

[Problems to be solved by the device]

 In this conventional product, the pad of the upper seat back that tilts forward and backward and the pad of the lower seat back are integrally foam-molded. The upper and lower pads are molded with a foamed material such as urethane foam having a certain rigidity. Therefore, when the upper frame is tilted forward by the reclining device, the upper pad and the lower pad are integrally rigid, so that the upper pad is difficult to move (bend) by the upper frame. Therefore, the operability of the forward leaning operation of the upper seat back is poor, and wrinkles and sagging due to pad deformation occur at the boundary between the seating surfaces of the upper seat back and the lower seat back, and the appearance quality of the seat back is impaired. There was a problem. Therefore, the present invention aims to improve the operability of the upper seat back and prevent wrinkles and slack from occurring in the seat back when the upper seat back is tilted forward.

[0004]

[Means for Solving the Problems]

 The present invention for achieving the above object is a foam pad in which the upper pad of the upper seat back and the lower pad of the lower seat back are integrated, and at the center of the seating portion between the upper pad and the lower pad, A slit for separating the upper pad and the lower pad is provided.

[0005]

[Action]

 Since the center of the seating portion of the upper pad and the lower pad is divided by the slit, the bendability of the upper pad in the front-back direction is improved. Therefore, the upper frame easily tilts the upper pad forward.

[0006]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a center-folded seat back (SB), which is composed of a lower seat back (A) and an upper seat back (B) connected to the lower seat back (B) so as to be tiltable in the arrow direction by a reclining device. The lower seat back (A) is tiltably connected to the seat cushion (SC) by a reclining device. In the figure (HR) shows the headrest attached to the upper seat back (B).

FIG. 2 shows a pad (P) made of a foam body (urethane foam, etc.) of a seat back (SB) according to the present invention, and the pad (P) is an upper part that constitutes the upper seat back (B). It is composed of a pad (1) and a lower pad (2) constituting a lower seat back (A), and the lower pads (1) and (2) are seated portions (2 1) (22) which are front faces. It is separated by the slit (4) at the boundary between the central portions (11) and (21) which is the center of (11) and (12).

The seating portions (21), (22) and (22) of the upper pad (1) and the lower pad (2) project to the left and right with respect to the central portions (11) and (21) and the upper half of the seated person's upper body. Is molded to hold the. In the figure, (12), (12), (22) and (22) indicate raised portions, and (13) and (23) indicate side portions of the pad (P).

As shown in FIGS. 3, 4 and 5, recessed grooves (41) (42) are formed on the left and right sides of the slit (4), and the recessed grooves (41) (42) form the recessed grooves (41) (42). The boundary between the upper pad (1) and the lower pad (2) is formed thin. The slit (4) is provided laterally between the left and right ridges (12) (12), (22) (22) of the upper pad (1) and the lower pad (2). Therefore, the upper pad (1) and the lower pad (2) are separated from each other in the center of the seating portion, and the left and right sides thereof are formed in a thin shape, so that the upper pad (1) is easily bent forward.

FIG. 6 shows a center-folded seat back (SB) using the above pad (P). In the figure, (5) is a lower frame constituting the lower seat back (B), and (6) is a lower flap. An upper frame connected to a frame (5) by a reclining device (not shown) so as to be tiltable in the front-rear direction is shown, and a lower frame (5) (6) is covered with the pad (P). The pad (P) is covered with a trim cover (7) to form a center-folded seat back (SB). The above-mentioned trim cover (7) has a conventionally well-known structure. The upper and lower members (71, 72) are joined to each other, and the suspending member (73) is integrally formed on the back side of the joined portion. It is sewn, and the suspending member (73) is inserted into the slit (4) and is bound to the trim wire (51) by the hoggling (52). The trim wire (51) is welded to the horizontal pipe rod (50) which is horizontally mounted on the upper portion of the lower frame (5).

[0011]

[Effect of the device]

 According to the present invention, since the upper pad and the lower pad are separated from each other by the slit at the center of the seating portion, the bending property of the upper pad in the front-rear direction is excellent. Therefore, the upper frame covered with the upper pad is smoothly rotated in the front-rear direction, which improves the operability of the forward tilting operation of the upper seat back and also when the upper seat back is tilted forward. Since the deformation of the upper pad is absorbed by the slit, no wrinkles or slack are formed between the upper seat back and the lower seat back, which damages the appearance of the seat back. Further, since the trim cover can be hung by inserting the suspending member integrally sewn on the back surface of the trim cover into the slit, the slack of the trim cover can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view of a center-folded seat back using a pad according to the structure of the present invention.

FIG. 2 is a perspective view of a pad having the structure of the present invention.

3 is a sectional view taken along line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

5 is a sectional view taken along line VV of FIG.

6 is a sectional view taken along line VI-VI of FIG.

[Explanation of symbols]

 A Upper seat back B Lower seat back 1 Upper pad 2 Lower pad 4 Slit 5 Lower frame 6 Upper frame

Claims (1)

[Scope of utility model registration request] 1. An upper frame constituting an upper seat back is connected to a lower frame constituting a lower seat back so as to be tiltable in a front-rear direction, and an upper pad constituting the upper seat back is formed on the lower frame. In a middle-folded seat back, which is covered with a foam pad composed of a lower pad that constitutes a lower seat back integrally with the upper pad, and is covered with a trim cover, a seat between the upper pad and the lower pad is seated. A pad structure for a center-folded seat back in which a slit for separating the upper pad and the lower pad is provided in the center of the part to improve the bending property of the upper pad in the front-back direction.