JP2003127735A - Insert wire for vehicular seat, seat cushion provided with the insert wire and seat back - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicular seat which can be simply assembled at an inexpensive cost, riding and sitting feeling of an occupant are improved and an insert wire. SOLUTION: In the insert wire in which a trim wire is arranged inward of a support wire formed into a shape corresponding to an outer shape of a seat cushion body or a seat back body and which is buried in an inside of the seat cushion body or the seat back body in this state, both ends of the trim wires 25, 43, 61 and 73 are swingably attached to an attaching part of the support wire 17.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an insert wire for a vehicle seat, and a seat cushion and a seat back provided with the insert wire.

[0002]

2. Description of the Related Art A vehicle seat arranged in an automobile or the like is provided with a seat cushion and a seat back, and their outer surfaces are covered with a skin to improve the appearance. As a method of attaching the skin, a hanging (hog ring) type in which the skin of the seat is hung and fixed is conventionally used. In this hog ring type, an insert wire is embedded inside a seat cushion or a seat back, and a skin is supported by the insert wire.

Conventional insert wires 101, 103
As shown in FIGS. 12 and 13, for example, a substantially rectangular support wire 105 and a trim wire 107,
It is composed of 109. According to the insert wire 101 shown in FIG. 12, two trim wires 10 are used.
The insert wires 101 are embedded inside the seat cushion or the seat back by placing 7 and 107 separately from the support wire 105 and arranging them inside the urethane mold and performing urethane molding in this state. However, the trim wire 107 and the support wire 1
If 05 is a separate body, when the seat cushion main body and the seat back main body are molded with urethane, the number of work steps for setting in the urethane mold increases, and the total number of work steps increases.

FIG. 13 shows an insert wire 103 in which two trim wires 109, 109 are joined to a support wire 105 by spot welding. However, if the trim wire 109 is integrated with the support wire 105 by joining, the rigidity becomes too large, so that the amount of deflection of the seat cushion or the seat back when the occupant is seated decreases, and the riding comfort deteriorates. There is a risk.

[0005]

DISCLOSURE OF THE INVENTION The present invention solves the above-mentioned problems and can be easily assembled at a low cost,
An object of the present invention is to provide an insert wire that improves the riding comfort and sitting comfort of an occupant when seated on a seat, and a seat cushion and a seat back including the insert wire.

[0006]

In order to achieve the above object, an insert wire according to the present invention has a trim wire formed inside a support wire formed in a shape corresponding to the outer shape of a seat cushion body or a seat back body. In this state, in the insert wire embedded in the seat cushion main body or the seat back main body, both ends of the trim wire are swingably attached to the attachment portion of the support wire.

An aspect of the insert wire according to the present invention is an insert wire embedded in the seat cushion body, wherein the support wire is arranged on the front side in the vehicle width direction. A wire portion, a rear wire portion disposed along the vehicle width direction on the rear side of the front wire portion, and side wire portions erected on both left and right ends of the front wire portion and the rear wire portion. On the other hand, the trim wire is composed of a main body wire portion and bending wire portions provided at both ends of the main body wire portion, and the bending wire portion and the attachment portion of the support wire are wound by a tubular member. By turning, both ends of the trim wire are swingably attached to the attachment portions of the support wire.

Further, in another aspect of the insert wire according to the present invention, the trim wire includes a main body wire portion extending in the front-rear direction from a front wire portion to a rear wire portion of the support wire, and the main body wire portion of the main body wire portion. The bending wire portions are provided at both front and rear ends along the vehicle width direction, and these bending wire portions are attached to the attachment portion of the front wire portion and the attachment portion of the rear wire portion, respectively. And still another aspect of the insert wire according to the present invention is to arrange a plurality of the trim wires extending in the front-rear direction side by side in the lateral direction, and to lay the lateral wires between the main body wire portions of these trim wires. It is fixed.

Still another aspect of the insert wire according to the present invention is that the trim wire is provided with a main body wire portion extending in the vehicle width direction, and a bend provided in both left and right ends of the main body wire portion along the front-rear direction. The bent wire portion is swingably attached to the side wire portion. Furthermore, still another aspect of the insert wire according to the present invention is that the trim wire has a main body wire portion arranged along the rear wire portion, and is directed forward from both left and right ends of the main body wire portion. A side end wire portion extending to the front wire portion, and a bending wire portion provided along the front wire portion at the front end of the side end wire portion, the bending wire portion and the attachment portion of the front wire portion, and The trim wire is swingably attached to the attachment portion of the support wire by winding the attachment portion of the main body wire portion and the rear wire portion with a tubular member.

Further, in another aspect of the insert wire according to the present invention, the trim wire includes the main body wire portion arranged along the front-rear direction, and the lateral portions from both front and rear ends of the main body wire portion. A side wire portion extending to the wire portion, and a bending wire portion provided along the side wire portion at the tip of the side wire portion, and the bending wire portion and the attaching portion of the side wire portion are tubular. The trim wire is attached to the attachment portion of the side wire portion in a swingable manner by winding the trim wire around the trim wire. Further, a seat cushion according to the present invention includes a seat cushion main body in which a frame member is disposed on a lower surface side, an insert wire embedded in the seat cushion main body at a distance from the frame, and the insert wire. And a skin covering the outer surface of the seat cushion body. The insert wire mentioned above can be used for this insert wire.

The seat back according to the present invention comprises a seat back main body having a frame member on the back side,
Inside the seat back main body, an insert wire embedded at a distance from the frame is provided, and a skin that is supported by the insert wire and covers the outer surface of the seat back main body. The insert wire mentioned above can be used for this insert wire.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a vehicle seat insert wire according to an embodiment of the present invention and a seat cushion provided with the insert wire will be described in detail with reference to the drawings. A vehicle seat usually includes a seat cushion that supports the occupant's buttocks and legs, and a seat back that supports the occupant's back. As shown in FIGS. 1 and 2, the seat cushion 1 is provided with a frame 3 for retaining strength, and a recessed groove 5 provided on the upper portion of the frame 3 and having a substantially H-shaped plan view on the upper surface side. The cushion main body 7 is formed, the insert wire 9 embedded in the cushion main body 7, and the outer skin 11 that covers the outer surface side of the cushion main body 7. The epidermis 11
Is supported by a C-shaped ring 13, as will be described later.

FIG. 3 is a sectional view taken along the line AA of FIG. 1, and FIG. 4 is an enlarged sectional view of a portion B of FIG. As shown in these figures, an insert wire 9 is embedded in the upper part of the inside of the cushion body 7 at a distance from the frame 3 arranged on the lower surface side. Of the insert wires 9, support wires 17 are arranged on both left and right sides of the cushion body 7, and inside the support wires 17 and 17, a trim is formed at a lower portion of the concave groove 5 formed in the cushion body 7. A wire 25 is provided.

On the other hand, the outer skin 11 covering the outer surface of the cushion body 7 has its end portions 19, 19, as shown in FIG.
19 is sewn with a thread 21, a skin holder 23 is attached to the end portion 19 to be housed in the groove 5, and the skin holder 23 is fixed and held to the trim wire 25 by using the C-shaped ring 13. is doing.

As shown in FIG. 5, the insert wire 9 has a substantially rectangular support wire 17 forming a frame body on the outer peripheral side, and is rotatably attached to the inside of the support wire 17, The trim wire 25 extends along the front-rear direction. The support wire 17 is a linear front wire portion 27 that is arranged on the front side of the vehicle and extends in the vehicle width direction.
7, a rear wire portion 29 of a linear shape arranged on the rear side of the vehicle body 7 and extending in the vehicle width direction, and a substantially doglegged shape connecting the front wire portion 27 and the left and right ends of the rear wire portion 29 so as to bridge in the front-rear direction. Two side wire parts 3 bent to
1, 31 are integrally formed.

The trim wire 25 is formed on the main body wire portion 33 extending in the front-rear direction and the front and rear ends of the main body wire portion 33, and the bending wire portion extending along the front wire portion 27 and the rear wire portion 29. 35,
37 and 37 are integrally formed in a substantially U shape. Further, as shown in FIG. 6, the front bending wire portion 35 is pressed against the front wire portion 27, and a clip 39 having a C-shaped cross section is inserted into both the wire portions 35, 27, and then the clip 39 is caulked. By doing so, the trim wire 25 is rotatably attached to the support wire 17. Then, the rear bending wire portion 37 is pressed against the rear wire portion 29, a clip 39 having a C-shaped cross section is inserted into both the wire portions 37, 29, and then the clip 39 is caulked to obtain a trim product. Wire 25
Is rotatably attached to the support wire 17. Furthermore, various forms in which the shape of the trim wire and its mounting position are changed are shown in FIGS. All of the supporting wires shown in these figures are formed in the same rectangular shape as the supporting wire 17 of FIG.

In the insert wire 41 shown in FIG. 7, the trim wire 43 includes a front bent wire portion 45 which is disposed on the front side and extends in the vehicle width direction, and a main body wire portion which is disposed on the rear side and extends in the vehicle width direction. 47 and a side end wire portion 49 that connects the end portions of these wire portions 45, 47 to each other and extends in the front-rear direction is formed in a substantially hat shape as a whole. In addition, the front bending wire portion 4
5. The body wire portion 47 is rotatably attached to the front wire portion 27 and the rear wire portion 29 by the clip 39.

The insert wire 51 shown in FIG.
Is obtained by adding a straight lateral wire 53 for trim to the insert wire 9 of FIG. That is, the transverse wire 5 for trim is provided between the central portions 33a, 33a in the front-rear direction of the two body wire portions 33, 33 extending in the front-rear direction.
3 is bridged, and in this state, the trim horizontal wire 53 and the main body wire portions 33, 33 are joined by spot welding.

Further, as shown in FIG. 9, a trim wire 61 is provided with a main body wire portion 6 extending along the vehicle width direction.
3 and bending wire portions 65, 65 extending forward from both left and right ends of the body wire portion 63, and these bending wire portions 65, 65 are clipped to the side wire portion 31 of the support wire 17. It may be rotatably attached using 39. Then, the insert wire 71 shown in FIG. 10 uses two substantially hat-shaped trim wires 73, and the bending wire portions 75, 75 formed on both front and rear ends of the trim wire 73 are used as the side wire portions 31. They are attached by clips 39, 39, respectively.

The operation of the insert wire having the above structure will be described with reference to FIG. 11 as an example. FIG. 11 is an enlarged cross-sectional view of the caulking portion of the front bending wire portion 35 and the clip 39 of the front wire portion 27 taken along the line D-D in FIG. 5. As shown in FIG. 11, the front bending wire portion 35 is rotatably attached to the front wire portion 27 of the support wire 17 by crimping the clip 39. Therefore, the clip 39 is centered on the front wire portion 27 and is in the X direction of the arrow or Y
In addition to being able to swing in the direction, the front bending wire portion 35 of the trim wire 25 also supports the support wire 1.
It is possible to rotate around the front wire portion 27 of No. 7 (Z direction or W direction of arrow).

Therefore, when the occupant is seated and a load is applied to the seat cushion 1 (see FIG. 1), the insert wire 9 begins to bend downward together with the cushion body 7, and the movement of the support wire 17 is stopped by the frame 3 in due course. Then, as the trim wire 25 further bends, the clip 39 swings in the X direction of the arrow and the front bending wire portion 35 rotates in the Z direction of the arrow in the clip 39 as shown in FIG. To do.

As described above, since the amount of deflection of the seat cushion when the occupant is seated on the seat is larger than that of the insert wire having the conventional structure, the riding comfort felt by the occupant is improved as compared with the conventional one. That is, when the trim wire 109 is joined to the support wire 105 like the conventional insert wire 103 shown in FIG. 13, after the downward movement of the support wire 105 is stopped by the frame, the trim wire 109 is trimmed. Since the wire 109 only bends due to elastic deformation, insert wire 1
The rigidity of the whole 03 becomes too large, and the sitting comfort and riding comfort of the occupant become lower than that of the present invention.

The present invention is not limited to the above-described embodiments of the present invention, and various modifications and changes can be made based on the technical idea of the present invention. For example, the insert wire according to the present invention can be applied to a seat back other than the seat cushion. Further, various shapes are also conceivable for the shape and the number of trim wires, and the position where the trim wires are attached to the support wires.

[0024]

According to the insert wire of the present invention, the trim wire is arranged inside the support wire formed in a shape corresponding to the outer shape of the seat cushion body or the seat back body. Or, in the insert wire embedded inside the seat back main body, since both ends of the trim wire are swingably attached to the attachment portion of the support wire, the occupant is seated and the seat back or the seat cushion is loaded. When the load is added, the amount of bending of the trim wire is increased, so that the riding comfort is improved.

An aspect of the insert wire according to the present invention is an insert wire embedded inside the seat cushion body, wherein the support wire is provided on the front side in the vehicle width direction. A wire portion, a rear wire portion disposed along the vehicle width direction on the rear side of the front wire portion, and side wire portions erected on both left and right ends of the front wire portion and the rear wire portion. On the other hand, the trim wire is composed of a main body wire portion and bending wire portions provided at both ends of the main body wire portion, and the bending wire portion and the attachment portion of the support wire are wound by a tubular member. By turning, both ends of the trim wire are swingably attached to the attachment portion of the support wire,
The tubular member can be easily attached to the support wire, and the workability is good.

Further, in another aspect of the insert wire according to the present invention, the trim wire includes a main body wire portion extending in the front-rear direction from a front wire portion to a rear wire portion of the support wire, and the main body wire portion. It is composed of bending wire portions provided along the vehicle width direction at both front and rear ends, and these bending wire portions are attached to the attachment portion of the front wire portion and the attachment portion of the rear wire portion, respectively, for trimming. Since the wire and the support wire are integrally connected, it is easy to set in the urethane mold and the number of work steps can be reduced. And still another aspect of the insert wire according to the present invention, a plurality of the trim wires are arranged side by side in the vehicle width direction, and transverse wires are erected and fixed to the main body wire portions of these trim wires. Therefore, the trim wire can rotate in the tubular member to increase the vertical bending stroke and increase the surface rigidity of the seating surface of the seat cushion.

Still another aspect of the insert wire according to the present invention is that the trim wire comprises a main body wire portion extending in the vehicle width direction and a bend provided in both left and right ends of the main body wire portion along the front-rear direction. It is formed by the wire part, and this bent wire part is swingably attached to the side wire part, so the trim wire and the support wire are integrally connected, and the setting work in the urethane mold is performed. It is easy to perform, and the number of man-hours can be reduced. Furthermore, still another aspect of the insert wire according to the present invention is that the trim wire has a main body wire portion arranged along the rear wire portion, and is directed forward from both left and right ends of the main body wire portion. A side end wire portion extending to the front wire portion, and a bending wire portion provided along the front wire portion at the front end of the side end wire portion, the bending wire portion and the attachment portion of the front wire portion, and By winding the mounting portion of the main body wire portion and the rear wire portion with a tubular member, the trim wire is swingably attached to the mounting portion of the support wire,
The trim wire can be made into one part, and the setting work for connecting the trim wire to the support wire can be facilitated.

[0028] In still another aspect of the insert wire according to the present invention, the trim wire includes the main body wire portion arranged along the front-rear direction and the lateral portions from both front and rear ends of the main body wire portion. A side wire portion extending to the wire portion, and a bent wire portion provided along the side wire portion at the tip of the side wire portion, and the mounting portion of the bent wire portion and the side wire portion is a cylinder. Since the trim wire is swingably attached to the attachment portion of the side wire portion by being wound with a strip-shaped member, the support wire is vertically moved from the trim wire (depth direction of the seat cushion). It can be flexed easily, improving ride comfort. Further, a seat cushion according to the present invention includes a seat cushion main body in which a frame member is disposed on a lower surface side, an insert wire embedded in the seat cushion main body at a distance from the frame, and the insert wire. And a skin covering the outer surface of the seat cushion body. Since the insert wire described above can be used as this insert wire, riding comfort is improved.

The seat back according to the present invention comprises a seat back main body having a frame member on the back side,
Inside the seat back main body, an insert wire embedded at a distance from the frame is provided, and a skin that is supported by the insert wire and covers the outer surface of the seat back main body. Since the insert wire described above can be used as this insert wire, riding comfort is improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a seat cushion according to the present invention.

FIG. 2 is an exploded perspective view of the seat cushion in FIG.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an enlarged cross-sectional view of portion B of FIG.

FIG. 5 is a plan view showing an insert wire according to the present invention.

FIG. 6 is an exploded perspective view showing a C portion of FIG.

FIG. 7 is a plan view showing a modified example of the insert wire according to the present invention.

FIG. 8 is a plan view showing another modification of the insert wire according to the present invention.

FIG. 9 is a plan view showing still another modified example of the insert wire according to the present invention.

FIG. 10 is a plan view showing still another modified example of the insert wire according to the present invention.

11 is an enlarged cross-sectional view taken along the line DD of FIG.

FIG. 12 is a perspective view showing a conventional insert wire.

FIG. 13 is a perspective view showing another conventional insert wire.

[Explanation of symbols]

1 seat cushion 3 frames 5 groove 7 Cushion body 9,41,51,71 Insert wire 11 epidermis 13 C type ring 17 Support wire 19 edge 21 thread 23 Skin holder 25,43,61,73 Trim wire 27 Front wire part 29 Rear wire part 31 Side wire part 33, 47, 63 Main body wire part 35,45 Front bending wire part 37 Rear bent wire 39 clips 53 Horizontal wire for trim 65,75 Bending wire part

Claims (11)

[Claims] 1. A trim wire is arranged inside a support wire formed in a shape corresponding to the outer shape of a seat cushion body or a seat back body, and in this state, the trim wire is embedded inside the seat cushion body or the seat back body. The insert wire, wherein both ends of the trim wire are swingably attached to attachment portions of the support wire. 2. An insert wire embedded in the interior of the seat cushion body, wherein the support wire is provided on a front side along a vehicle width direction, and a rear side of the front wire section. On the other hand, the rear wire portions arranged along the vehicle width direction, and the side wire portions erected on the left and right ends of the front wire portion and the rear wire portion, while the trim wire is And a bending wire portion provided at both ends of the main body wire portion, and by winding the bending wire portion and the attachment portion of the support wire with a tubular member, both ends of the trim wire. The insert wire according to claim 1, wherein the insert wire is swingably attached to the attachment portion of the support wire. 3. The trim wire is provided on a main body wire portion extending in the front-rear direction from a front wire portion to a rear wire portion of the support wire, and is provided on both front and rear ends of the main body wire portion along a vehicle width direction. The insert wire according to claim 2, wherein the insert wire is configured by a bent wire portion, and these bent wire portions are attached to the attachment portion of the front wire portion and the attachment portion of the rear wire portion, respectively. 4. The trim wires extending in the front-rear direction are arranged side by side in the lateral direction, and the transverse wires are erected and fixed between the main body wire portions of the trim wires. Insert wire described in. 5. The trim wire is formed by a main body wire portion extending in the vehicle width direction and bending wire portions provided on both left and right ends of the main body wire portion along the front-rear direction. The insert wire according to claim 2, wherein the insert wire is swingably attached to the side wire portion. 6. The main body wire portion arranged along the rear wire portion, and the side end wire portion extending forward from the left and right ends of the main body wire portion to the front wire portion. And a bending wire portion provided along the front wire portion at the front end of the side end wire portion, a mounting portion of the bending wire portion and the front wire portion, and a mounting portion of the main body wire portion and the rear wire portion. The insert wire according to claim 2, wherein the trim wire is swingably attached to the attachment portion of the support wire by winding the portion around a tubular member. 7. The main body wire portion arranged along the front-rear direction, the side wire portion extending from the front and rear ends of the main body wire portion to the side wire portion, and the side end portion. The trim wire is formed by a bending wire portion provided along the lateral wire portion at the tip of the wire portion, and the attachment portion of the bending wire portion and the lateral wire portion is wound by a tubular member. The insert wire according to claim 2, wherein the insert wire is swingably attached to the attachment portion of the side wire portion. 8. A seat cushion main body having a frame member on the lower surface side, an insert wire embedded in the seat cushion main body at a distance from the frame, and an insert wire supported by the insert wire. A seat cushion, comprising: an outer skin that covers an outer surface of the seat cushion body. 9. The insert wire according to claim 1.
The seat cushion according to claim 8, which is the insert wire according to any one of claims 7 to 9. 10. A seat back main body having a frame member on the back side, an insert wire embedded in the seat back main body at a distance from the frame, and an insert wire supported by the insert wire. A seat back, comprising: a skin covering the outer surface of the seat back body. 11. The insert wire according to claim 1.
The seat back according to claim 10, which is the insert wire described in (1).