JPH10156071A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and accurately spread a seat cover along a hollowed part formed on the rear of a cushion body for a seat back. SOLUTION: In this seat, the rear of a cushion body for a seat back is formed as hollowed surface 2 where a part over both side rims from the upper end thereof is left as protruded part 1a for hemming and a bag-shaped seat cover 3 is spread over the rear of the cushion body with a rear cover part 3c threof arranged along the hollowed surface 2. One side rim of a lengthy rectangle rigid band plate with the longitudinal range thereof corresponding to the depth of the hollowed part 2 is sewn on a boundary part of a stile cover part 3b and the rear cover part 3c inside the seat cover 3. The rigid band plate has the upper end thereof engaged with an edge wire which is located at an upper inner part of the hollowed part 2 to draw an upper part of the rear cover part 3c onto the upper rim of the hollowed part 2 while a lower part thereof is drawn holding a tie string onto a lower inner part of the hollowed part 2 to make the rigid band plate along a vertical side of the hollowed part 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seat back cushion body in which at least a portion extending from the upper edge to both side edges thereof is formed as a recessed surface left as an edge projecting portion, and formed into a bag-like shape. The present invention relates to a vehicle seat covered with a seat cover.

[0002]

2. Description of the Related Art Conventionally, a vehicle seat has a flat back surface, but recently, a vehicle seat has been recently developed.
As disclosed in, for example, Japanese Patent No. 56461, there has been proposed an apparatus in which a pocket or the like is attached to the back or a recess is formed on the back of the back except for a fringing projection in order to make the leg space wider.

However, in such a vehicle seat having a concave portion on the back surface, a large number of resin hooks are provided so that the bag-shaped sheet cover covered with the concave portion can be fitted to the concave portion without slack. Means to pull in and fix the seat cover into the recess, or use a different backboard corresponding to the size of the recess to pull in and fix the seat cover into the recess, and as a result, the number of parts is reduced. In addition to being poor in sewing workability and mounting workability,
There was a problem that the production cost also became high.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems, and enables the seat cover to be easily and reliably covered along the concave portion on the back and back, and the number of parts is reduced. The present invention has been completed with the object of providing a vehicle seat capable of exhibiting little and excellent sewing workability and mounting workability, and also capable of reducing production costs.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a vehicle seat according to the present invention has a back surface of a cushion body for a seat back having at least a portion extending from an upper edge to both side edges thereof. A vehicle seat in which a bag-shaped seat cover is formed on the recessed surface left as a protruding portion and covered with a back cover portion along the recessed surface,
On the inside of the bag-shaped seat cover, a rigid strip corresponding to the depth of the recessed portion is sewn on one side edge at the boundary between the camach covering portion and the back back covering portion, and the front and rear width corresponds to the depth of the recessed portion. The upper end of the rigid strip is located at the upper back of the recess, and the upper part of the back cover is engaged with an edge wire that draws into the upper edge of the recess, while the lower part of the rigid strip is below the recess. It is characterized in that the back-and-back covering portion comes into close contact with the concave portion by pulling the rigid band plate along the rising side surface of the concave portion by pulling in the back portion with a binding string.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The drawings show an example in which the present invention is applied to a front back sheet of a front seat for an automobile. In the drawing, reference numeral 1 denotes a cushion body for a back sheet made of polyurethane foam, and the back surface of the cushion body 1 has the entire periphery thereof. Alternatively, the recessed surface 2 is formed while leaving a portion extending from the upper edge to both side edges as the edging protrusion 1a. Reference numeral 3 denotes a bag-shaped seat cover made of a fabric material covering the cushion body 1. The seat cover 3 is made up of a surface covering portion 3a, a gusset covering portion 3b covering a side portion, and a back back covering portion 3c covering a back and back surface. The sheet surface covering portion 3a and the gusset covering portion 3b are sewn by a sewn portion 4a, and the gusset covering portion 3b and the back covering portion 3c.
Is sewn by a sewing portion 4b, and these structures are basically the same as those of a conventional vehicle seat of this type.

In the present invention, the sewn portion 4b, which is the boundary between the gusset covering portion 3b and the back and back covering portion 3c of the seat cover 3, is vertically elongated and has a rigidity corresponding to the depth of the concave portion 2 in the front-rear width. The strip 5 is sewn with one side edge thereof. The rigid plate 5 is made of, for example, a synthetic resin plate such as a hard polyvinyl chloride resin having a thickness of about 0.8 to 2 mm and having a certain degree of elasticity. It has a length of 2/3 or more, and is vertically erected along the vertical side surface 2a of the concave portion 2, so that the back and back cover portion 3c is in close contact with the vertical side surface 2a to form a sharp concave design. It works as follows. And this rigid strip 5
The upper end of the back cover 3 is located at the upper back of the recess 2.
c is engaged with an edge wire 6 drawn into the upper edge of the concave portion 2 and is fixed by being pulled toward the cushion body 1 along the upright side surface 2a of the concave portion 2 by the edge wire 6, while being rigid. As will be described later, the lower end of the band plate 5 is also locked to the seat frame with the strap 7 and is drawn into the lower part of the recess 2 so that the lower portion of the rigid band plate 5 faces the side of the upright side 2a. When the rigid strip 5 is drawn in, the rigid strip 5 is kept in close contact with the upright side 2a of the recess 2 by moving the rigid strip 5 along the upright side 2a of the recess 2, and the back cover 3c of the seat cover 3 is removed. It is close to the recess 2.

That is, in the illustrated example, a hanging bag 8 is sewn together with the sewn portion 4b along the longitudinal direction of the rigid strip 5, and a tying string 7 is inserted into the hanging bag 8, The upper end is locked by the edge wire 6, and the hanging bag 8
The lower part 7a of the binding string 7 hung down from the lower part of the seat back frame 11
The lower part of the rigid strip 5 is made to be along the vertical side surface 2 a of the recess 2 by being locked to the like. The means for pulling and fixing the lower portion 7a of the strap 7 to the lower part of the recess 2 is optional. However, the strap 7 may be an elastic rubber strap or the like using a hog ring or the like to seat the seat back frame. Hooking on a wire is convenient because workability is improved and loosening is less likely to occur.

Next, the procedure for mounting the vehicle seat shown in the drawings will be described.
Is basically turned upside down in a state in which the seat cover 3 is mounted while being repeatedly turned over from the head of the cushion body 1 in the conventional manner. When the edge wire 6 that locks the upper end of the strap 7 is pulled into the cushion body 1 and fixed at the stage where it is put on the head, the rigid strip 5 has only the upper portion of the recess 2 Since the seat cover 3 is rotated by 90 ° to be in close contact with the upright side surface 2a, the seat cover 3 is pulled down to the lower portion of the cushion body 1 while being turned over, and then mounted. Reference numeral 9 in the drawing denotes a hanging bag sewn at a position corresponding to the upper edge of the concave portion 2 on the back surface side of the back and back covering portion 3c so as to hold the edge wire 6.
When the cushion body 1 is temporarily covered with the seat cover 3 in this manner, the suspension that is sewn to the sewn portion of one side edge of the rigid strip 5 with the upper end engaged with the edge wire 6. The hanging portion of the strap 7 that is inserted through the bag 8 and hangs down from below the hanging bag 8 is pulled to exert a force in a direction in which the lower portion of the rigid strip 5 is rotated 90 ° toward the upright side surface 2a. In addition, if this is fixed to the seat back frame, the state in which the rigid strip 5 is completely adhered to the upright side surface 2a of the concave portion 2 is maintained. The concave portion 2 is clearly attached to the inner surface, so that the concave portion 2 is clearly expressed.

As described above, the mounting work of the seat cover 3 of the present invention can be performed very easily without using a large number of resin hooks or special back boards as in the conventional case, and it is efficient. It can be produced. In addition, the number of parts is small and inexpensive. Further, by merely changing the width of the rigid strip 5, it is possible to cope with the recesses 2 of all depths and the degree of freedom of design is large. Since the back and back covering portion 3c can be bent in a very natural state, an excellent three-dimensional feeling can be obtained, and the texture and sufficient softness can be obtained, resulting in high quality.

[0011]

As is clear from the above description, the present invention can easily and reliably cover the seat cover along the concave portion on the back and back, and has excellent sewing workability with a small number of parts. The mounting workability can be exhibited, and various advantages such as reduction in production cost can be achieved. Therefore, the present invention greatly contributes to industrial development as a vehicle seat that has eliminated the conventional problems.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a preferred embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of a main part showing a preferred embodiment of the present invention.

FIG. 3 is a cross-sectional plan view of a main part showing a preferred embodiment of the present invention.

FIG. 4 is an end view of a lower portion in a state where a seat cover is temporarily covered with a cushion body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cushion body 1a Edge protruding part 2 Depression part 2a Erect side surface 3 Bag-shaped seat cover 3b Kamachi covering part 3c Back back covering part 5 Rigid band plate 6 Edge wire 7 Binding strap 8 Hanging bag

Claims (3)

[Claims] 1. A back surface of a seat back cushion body (1) having at least a portion extending from an upper edge to both side edges thereof is formed as a recessed surface (2) which is left as an edge projection (1a). This is a vehicle seat covered with a bag-shaped seat cover (3), and the inside of the bag-shaped seat cover (3) is located at the boundary between the gusset-covered part (3b) and the back-back part (3c). A longitudinally elongated rigid strip (5) corresponding to the depth of the recess (2) is sewn along one side edge, and the upper end of the rigid strip (5) is sewn on the recess (2).
The lower part of the rigid strip (5) is engaged with the edge wire (6), which is located at the upper back of the back strip (3c) and drawn into the upper edge of the recess (2). Pull the rigid strip (5) along the upright side (2a) of the recess (2) by pulling it in with the tying strap (7) below the recess (2).
A vehicle seat characterized in that c) is in close contact with the recess (2). 2. A hanging bag (8) is sewn together on a sewn portion of one side edge of the rigid strip (5), and an upper end of the hanging bag (8) is engaged with an edge wire (6). Insert the strap (7) and insert the hanging bag
The rigid strip (5) is pulled up from the back side of the strap (7) suspended from below (8) and locked to the seat back frame, whereby the rigid strip (5) is raised (2a) The vehicle seat according to claim 1, wherein the vehicle seat is arranged along the direction. 3. The vehicle seat according to claim 1, wherein the binding string is an elastic string.