JP7410436B2 - vehicle seat - Google Patents

Description

The present invention relates to a vehicle seat equipped with a support member that receives a load from a seated person.

As a vehicle seat, for example, Patent Document 1 discloses a cushion frame, two front and rear wires installed between a front panel and a rear pipe of the cushion frame, and a seat arranged to intersect with the two front and rear wires. A central wire and a bridging wire are disclosed. In this technique, a wire (wire rod) placed inside a cushion frame functions as a member that receives a load from a seated person via a cushion pad.

JP2014-162431A

Incidentally, it is desired that a member that receives a load from a seated person (hereinafter referred to as a "support member") has a configuration that can improve the sitting comfort of a vehicle seat.

Therefore , an object of the present invention is to provide a vehicle seat that can improve sitting comfort.
Another purpose is to suppress damage to the pad material.

The vehicle seat includes a pair of opposing frames spaced apart in a first direction, and a pair of connecting frames spaced apart in a second direction perpendicular to the first direction and connecting the pair of opposing frames. , a first construction wire rod and a second construction wire rod installed on the pair of connection frames, a reinforcing wire rod arranged to intersect at least the second construction wire rod when viewed from the seated person's side, and a part of the first construction wire rod. A plate-shaped first resin member connects the first erection wire and the reinforcing wire with a part of the reinforcing wire covered, and a second erection with a part of the second erection wire covered and a part of the reinforcing wire. A plate-shaped second resin member that connects the wire rod and the reinforcing wire rod is provided. The first resin member and the second resin member are spaced apart from each other.

According to such a configuration, the support member that receives the load from the seated person can be configured by the first construction wire, the second construction wire, the reinforcing wire, the first resin member, and the second resin member. Since the first resin member and the second resin member are plate-shaped, the load from the seated person can be received on the surface. Furthermore, by arranging the first resin member and the second resin member apart from each other, the support member can have appropriate flexibility. Thereby, the comfort of the vehicle seat can be improved.

In the vehicle seat described above, the first construction wire rod and the first resin member may be provided on both sides of the second construction wire rod and the second resin member in the first direction. In this case, the second resin member may include a third resin member having a pair of connecting portions connected to the reinforcing wire. The pair of connecting portions may be arranged at the same position in the second direction.

According to this, the seated person can be stably supported by the second resin member including the third resin member and the first resin members provided on both sides of the second resin member. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the reinforcing wire has a first extending portion extending in the first direction and a pair of second extending portions bent and extending from both ends of the first extending portion in one of the second directions. The third resin member is disposed between the pair of second extending parts when viewed from the seated person's side, and the pair of connecting parts includes a first reinforcing part having one of the second extending parts. The second extension part may be connected to the other of the pair of second extension parts.

According to this, since the seated person can be firmly supported by the third resin member, the seated person can be supported more stably by the support member. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the first resin member includes a first portion extending in the first direction, and a second portion extending from a part of the end of the first portion on the second construction wire toward the second construction wire. The reinforcing wire has at least a portion of the second extending portion disposed at a corner between the first portion and the second portion, and portions on both sides of the portion disposed at the corner of the second extending portion. may be covered and held by the first part and the second part.

According to this, the mounting rigidity of the third resin member can be improved, so that the third resin member can support the seated person more firmly, and the support member can support the seated person more stably. can. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the reinforcing wire extends in the first direction and includes a second reinforcing part disposed in line with the first reinforcing part in the second direction, and the second reinforcing part is located at the end in the first direction. may be covered and held by the first resin member.

According to this, the supporting member can be strongly reinforced by the first reinforcing portion and the second reinforcing portion, so that the seated person can be supported even more stably by the supporting member. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the first reinforcing portion and the second reinforcing portion may be made of one wire rod.

According to this, since the support member can be more strongly reinforced, the seated person can be supported more stably by the support member. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the first direction is the left-right direction, and the first resin members each have a support portion including a support surface that slopes toward the seated person as it goes outward in the left-right direction, The third resin member may be arranged between the left and right support parts when viewed from the seated person's side.

According to this, since the surface of the support member that supports the seated person can be made to follow the shape of the human body, the seated person can be supported by the support member in a well-balanced manner. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, at least one of the first resin member and the second resin member may have a thick reinforcing portion.

According to this, the rigidity of the first resin member and the second resin member can be improved, so that the seated person can be stably supported by the first resin member and the second resin member. Thereby, the comfort of sitting on the vehicle seat can be further improved.

In the vehicle seat described above, the reinforcing portion may include a rib that is convex on the side opposite to the seated person side.

According to this, the edges of the ribs do not come into contact with the pad material disposed on the seated person side of the first resin member or the second resin member, so that damage to the pad material can be suppressed.

The vehicle seat described above is made of resin and includes a first covering member that covers a portion of the first erection wire that is hooked to the connection frame, and the first resin member and the first covering member are arranged at a distance from each other. , a part of the first construction wire may be exposed between the first resin member and the first covering member.

The vehicle seat described above is made of resin and includes a second covering member that covers a portion of the second erection wire that is hooked to the connection frame, and the second resin member and the second covering member are arranged apart from each other. , a part of the second construction wire may be exposed between the second resin member and the second covering member.

The comfort of a vehicle seat can be improved.

Further , the first construction wire rod and the first resin member are provided on both sides of the second construction wire rod and the second resin member, and the pair of connecting portions of the third resin member constituting the second resin member are placed at the same position in the second direction. With this arrangement, the comfort of the vehicle seat can be further improved.

Further , the third resin member is arranged between the pair of second extending parts of the first reinforcing part, one of the pair of connecting parts is connected to one of the second extending parts, and the other is connected to the second extending part. By connecting it to the other side, the comfort of the vehicle seat can be further improved.

Further , at least a part of the second extending part is arranged at a corner between the first part and the second part of the first resin member, and both side parts of the corner arrangement part of the second extending part are arranged in the first part. By covering and holding the vehicle seat with the second portion, the seating comfort of the vehicle seat can be further improved.

Further , by covering and holding the end portion of the second reinforcing portion arranged in parallel with the first reinforcing portion with the first resin member, the comfort of sitting on the vehicle seat can be further improved.

Further , by forming the first reinforcing portion and the second reinforcing portion from one wire rod, it is possible to further improve the comfort of the vehicle seat.

Further , by arranging the third resin member between the left and right support portions of the first resin member, the comfort of sitting on the vehicle seat can be further improved.

Further , by providing a reinforcing portion in at least one of the first resin member and the second resin member, the comfort of sitting on the vehicle seat can be further improved.

Further , since the reinforcing portion includes a rib that is convex on the side opposite to the seated person side, damage to the pad material can be suppressed.

FIG. 1 is a diagram showing a vehicle seat according to an embodiment. It is a figure which shows a cushion frame and a support member. It is a figure showing an erection wire rod and a reinforcing wire rod. It is a figure which shows a support member. FIG. 3 is a view of the support member viewed from above. FIG. 3 is a view of the rear end of the support member viewed from above. FIG. 3 is a view of the support member viewed from below. FIG. 7 is a view of the rear end portion of the support member according to the first modified example, viewed from above. FIG. 7 is a view of the rear end portion of a support member according to a second modified example, viewed from above. It is a figure (a), (b) which shows the connection part based on a modification.

Embodiments of the invention will be described below with reference to the accompanying drawings. Note that in this specification, front and back, left and right, and up and down are based on front and back, left and right, and up and down as seen from a person sitting on the seat (seated person).
As shown in FIG. 1, the vehicle seat of this embodiment is configured as a vehicle seat S used in a driver's seat, a passenger seat, etc. of an automobile, and includes a seat cushion S1 and a seat back S2.

A cushion frame F1 as shown in FIG. 2, which constitutes a frame of the seat cushion S1, is built inside the seat cushion S1. The seat cushion S1 is constructed by covering a cushion frame F1 with a padding material made of urethane foam or the like and a skin material made of cloth, leather, or the like. Further, although not shown in the drawings, the seat back S2 is constructed by covering a back frame that constitutes the frame of the seat back S2 with a pad material and a skin material.

The cushion frame F1 includes left and right side frames 11 as an example of a pair of opposing frames, a front frame 12 and a rear frame 13 as an example of a pair of connecting frames, and a pan frame 14. In this embodiment, the left-right direction corresponds to a "first direction" and the front-back direction corresponds to a "second direction perpendicular to the first direction." Further, in this embodiment, the upper side corresponds to the "seated person side", and the lower side corresponds to the "side opposite to the seated person side".

The left and right side frames 11 are elongated frames that are long in the front and back, and are arranged to face each other in the left-right direction and to be spaced apart from each other. Each side frame 11 is made of sheet metal.
The front frame 12 and the rear frame 13 are arranged apart from each other in the front-rear direction. The front frame 12 and the rear frame 13 are made of metal pipes extending left and right. The front frame 12 connects the front parts of the left and right side frames 11, and the rear frame 13 connects the rear parts of the left and right side frames 11. are connected to each other.
The pan frame 14 is arranged to connect the front ends of the left and right side frames 11 to each other. The pan frame 14 is made of sheet metal.

A support member 20 is arranged between the left and right side frames 11. The support member 20 is a member that receives a load from a seated person via a padding material (not shown) of the seat cushion S1, and includes an erection wire 100, a reinforcing wire 200, a plate-shaped resin member 300, and a covering member 400. Configured with the necessary features. Although details will be described later, the construction wire rod 100 and the reinforcing wire rod 200 are made of metal wire rods. Further, the resin member 300 is made of resin, and is formed integrally with the construction wire 100 and the reinforcement wire 200 by insert molding or the like so as to cover a part of the construction wire 100 and a part of the reinforcement wire 200. Further, the covering member 400 is made of resin and is formed integrally with the construction wire 100 by insert molding or the like so as to cover the rear end portion of the construction wire 100.

As shown in FIG. 3, the construction wire 100 is installed between the front frame 12 and the rear frame 13. A plurality of construction wire rods 100 are provided side by side. Specifically, the construction wire 100 includes left and right first vertical wires 110 as first construction wires, and second vertical wires 120 as second construction wires.
The first vertical wire 110 is spaced apart from side to side, and includes a first extending part 111, a second extending part 112, a bent part 113, a first inclined part 114, and a first hook part 115. It has a second inclined part 116 and a second hook part 117.

The first extending portion 111 and the second extending portion 112 extend back and forth.
The bent portion 113 is located between the first extending portion 111 and the second extending portion 112, and protrudes obliquely upward and outward in the left-right direction with respect to the extending portions 111 and 112 in a substantially U-shape. .
The first inclined part 114 extends diagonally upward and forward from the front end of the first extending part 111, and the second inclined part 116 extends diagonally upward and rearward from the rear end of the second extending part 112. .
The first hook portion 115 extends from the front end of the first inclined portion 114 and is formed in a substantially arc shape convex upward, and the second hook portion 117 extends from the upper end of the second inclined portion 116. It is formed in a substantially arc shape.

The second vertical wire 120 is arranged between the left and right first vertical wires 110, and includes an extension part 121, a first slope part 124, a first hook part 125, a second slope part 126, and a second hook. 127.
The extending portion 121 extends back and forth and is arranged substantially parallel to the extending portions 111 and 112 of the left and right first vertical wires 110. Further, the first inclined part 124 and the first hook part 125 are formed in substantially the same shape as the first inclined part 114 and the first hook part 115 of the first vertical wire 110, and the second inclined part 126 and the second hook part 127 is formed in substantially the same shape as the second inclined portion 116 and second hook portion 117 of the first vertical wire 110.

The reinforcing wire 200 is arranged to intersect at least the second vertical wire 120 when viewed from above. A plurality of reinforcing wire rods 200 are provided side by side. Specifically, the reinforcing wire 200 includes a first horizontal wire 210, a second horizontal wire 220, and a third horizontal wire 230.
The first horizontal wire 210 is formed by bending one wire rod into an annular shape, and includes a first reinforcing part 211, a second reinforcing part 212, a connecting part 213, a first end part 215, and a second end part. 216.

The first reinforcing portion 211 includes a first extending portion 211A extending in the left-right direction, and a pair of second extending portions 211B bent and extending forward, which is one of the front-back directions, from both left and right ends of the first extending portion 211A. have. The second extending portion 211B extends from the end of the first extending portion 211A toward the outer side in the left-right direction and obliquely forward, and is connected to the front end of the connecting portion 213 or the first end portion 215. The first reinforcing portion 211 is disposed above the extending portion 121 of the second longitudinal wire 120 so as to intersect with the central portion of the extending portion 121 in the front-rear direction.

The second reinforcing portion 212 extends in the left-right direction and is arranged in line with the first reinforcing portion 211 in the front-back direction. Specifically, the second reinforcing part 212 is arranged behind the first reinforcing part 211. The second reinforcing portion 212 is disposed above the extending portion 121 of the second vertical wire 120 so as to intersect with the extending portion 121 .

The connecting portion 213 extends back and forth and connects the right ends of the first reinforcing portion 211 and the second reinforcing portion 212.
The first end portion 215 is bent from the left end of the first reinforcing portion 211 and extends toward the rear side, and the second end portion 216 is bent from the left end of the second reinforcing portion 212 and extends toward the front side. . The first end portion 215 and the second end portion 216 are arranged in front of each other, and the rear end surface of the first end portion 215 and the front end surface of the second end portion 216 are close to each other and face each other in the front and back directions.

The front and rear ends of the connecting portion 213 are arranged below the extending portions 111 and 112. Further, the first end portion 215 is disposed below the first extending portion 111 of the first longitudinal wire 110 whose front end portion is on the left, and the second end portion 216 is arranged below the first longitudinal wire 110 whose rear end portion is on the left. 110 is disposed below the second extending portion 112 of the second extending portion 110 . Thereby, the first horizontal wire 210 supports the extending portions 111 and 112 and the bent portion 113 of the first vertical wire 110 from below through the resin constituting the resin member 300.

The second horizontal wire 220 is arranged in front of the first horizontal wire 210 and has a crossing portion 221 and an end portion 222 .
The intersection 221 extends left and right. The intersection portion 221 is disposed above the first inclined portion 124 such that its center portion in the left-right direction intersects with the first inclined portion 124 of the second longitudinal wire 120 , and its end portion is located above the first inclined portion 124 of the first longitudinal wire 110 . The first extending portion 111 is disposed above the first extending portion 111 so as to intersect with the first extending portion 111 .
The end portions 222 are bent from the left and right ends of the intersection portion 221 and extend toward the rear side.

The third horizontal wire 230 is arranged in front of the second horizontal wire 220 and has a central portion 231 , a first intermediate portion 232 , a second intermediate portion 233 , and an end portion 234 .
The central portion 231 extends left and right, intersects with the first inclined portion 124 of the second vertical wire 120, and is disposed above the first inclined portion 124.
The first intermediate portion 232 is bent from the left and right ends of the central portion 231 and extends toward the rear side.
The second intermediate portion 233 is bent from the rear end of the first intermediate portion 232 and extends outward in the left-right direction. The outer end in the left-right direction of the second intermediate portion 233 is disposed above the first inclined portion 114 so as to intersect with the first inclined portion 114 of the first vertical wire 110 .
The end portion 234 is bent from the outer end in the left-right direction of the second intermediate portion 233 and extends toward the front side.

As shown in FIG. 2, the resin member 300 includes a first resin member 310 and a second resin member 320. The first resin member 310 connects the first longitudinal wire 110 and the reinforcing wire 200 while covering a part of the first longitudinal wire 110 and a part of the reinforcing wire 200. Further, the second resin member 320 connects the second longitudinal wire 120 and the reinforcing wire 200 while covering a part of the second longitudinal wire 120 and a part of the reinforcing wire 200. The construction wire rod 100 and the reinforcement wire rod 200 are arranged at a predetermined interval so that the overlapping parts do not contact each other when viewed from above, and the resin member 300 covers the construction wire rod 100 and the reinforcement wire rod 200 in this state. are connected. Therefore, the resin member 300, more specifically, the resin constituting the resin member 300, enters the gap between the portion of the construction wire rod 100 that overlaps with the reinforcement wire rod 200 and the portion of the reinforcement wire rod 200 that overlaps with the construction wire rod 100. are doing.

As shown in FIG. 4, one first resin member 310 is provided along with the first vertical wire 110 on both sides of the second vertical wire 120 and the second resin member 320 in the left-right direction. The left and right first resin members 310 each have a main body portion 311 as a first portion, an extending portion 312 as a second portion, and a hook portion 315.

As shown in FIG. 5, the main body portion 311 extends in the front-rear direction. The main body portion 311 includes the lower ends of the extending portions 111 and 112, the bent portion 113, the first inclined portion 114, and the second inclined portion 116 of the first vertical wire 110, and the connecting portion 213 or the end of the first horizontal wire 210. 215, 216, the end portion 222 of the second horizontal wire 220, and a part of the second intermediate portion 233 and the end portion 234 of the third horizontal wire 230. Further, the main body portion 311 has a support portion 313. The support portion 313 is a plate-shaped portion that covers the bent portion 113 and extends diagonally upward toward the outside in the left-right direction, and is provided at the rear of the main body portion 311 . The upper surface of the support portion 313 is a support surface 313A that slopes upward toward the outside in the left-right direction (see also FIG. 4).

The extending portion 312 extends from a part of the end of the main body portion 311 on the second vertical wire 120 side toward the second vertical wire 120 . Specifically, the extending portion 312 extends inward in the left-right direction from the rear portion of the main body portion 311 . To explain further, the extending portion 312 extends inward in the left-right direction from the rear portion of the supporting portion 313. The extending portion 312 covers the left and right ends of the first extending portion 211A of the first reinforcing portion 211, the rear end of the second extending portion 211B, and the left and right ends of the second reinforcing portion 212. There is.

As shown in an enlarged view in FIG. 6, the first resin member 310 has a corner 314 between the front end of the extending portion 312 and the inner end in the left-right direction of the main body portion 311 (support portion 313). There is.
In the first horizontal wire 210, the front end of the second extending portion 211B is arranged at the corner 314. Further, the first horizontal wire 210 has a portion disposed at the corner 314 of the second extending portion 211B, that is, a portion on both sides of the front end portion of the second extending portion 211B is covered by the main body portion 311 and the extending portion 312. is maintained. Specifically, in the first horizontal wire 210, the connecting portion 213 or the first end portion 215, which is one side of the front end portion of the second extending portion 211B, is covered by the main body portion 311, and the first horizontal wire 210 is covered with the main body portion 311. The rear end portion of the second extending portion 211B, which is the other side of the front end portion, is covered by the extending portion 312. Further, the second reinforcing portion 212 of the first horizontal wire 210 is held with its left and right ends covered by the extending portion 312 of the first resin member 310 .

Returning to FIG. 5, the second resin member 320 is provided within the front and rear widths of the vertical wires 110, 120, specifically, between the front and rear ends of the vertical wires 110, 120 in the front-back direction. Further, a plurality of second resin members 320 are provided in a line in front and back. Specifically, the second resin member 320 includes a third resin member 330, a fourth resin member 340, and a fifth resin member 350.

The fourth resin member 340 includes a portion of the extending portion 121 of the second vertical wire 120 and the lower end portion of the second inclined portion 126, and the first reinforcing portion 211 (first extending portion 211A) of the first horizontal wire 210. and the center portion of the second reinforcing portion 212 in the left-right direction.
The fourth resin member 340 and the left and right first resin members 310 are spaced apart from each other. Specifically, the fourth resin member 340 is disposed between the left and right first resin members 310 when viewed from above, more specifically, between the left and right extensions 312; The extension portion 312 is spaced apart from the extension portion 312 inward in the left-right direction so as to form a slit-like gap therebetween. The left and right first resin members 310 and fourth resin members 340 are connected by a first horizontal wire 210. Parts of the front and rear reinforcing parts 211 and 212 of the first horizontal wire 210 are exposed between the first resin member 310 and the fourth resin member 340.

As shown in FIG. 6, the third resin member 330 is disposed in front of the fourth resin member 340, and includes a main body portion 331 and a pair of left and right connecting portions 332.
The main body portion 331 extends left and right. The center portion of the main body portion 331 in the left-right direction covers a part of the extending portion 121 of the second vertical wire 120.
The connecting part 332 is a part connected to the first horizontal wire 210. Specifically, the connecting portion 332 is connected to the first horizontal wire 210 while covering the front end of the second extending portion 211B of the first horizontal wire 210. The third resin member 330 is formed substantially symmetrically, and the pair of connecting portions 332 are arranged at the same position in the front-rear direction. Further, the third resin member 330 is arranged between the pair of second extending portions 211B when viewed from above, and one of the pair of connecting portions 332 is connected to one of the pair of second extending portions 211B. and the other is connected to the other of the pair of second extension parts 211B. Specifically, the right connecting portion 332 is connected to the right second extending portion 211B, and the left connecting portion 332 is connected to the left second extending portion 211B.

The third resin member 330 and the left and right first resin members 310 are spaced apart from each other. Specifically, the third resin member 330 is disposed between the left and right first resin members 310 when viewed from above, more specifically between the left and right support sections 313, and extends inward from the support section 313 in the left and right direction. They are set apart. Further, the left and right end portions of the third resin member 330 including the connecting portion 332 are arranged in front of the extending portion 312 when viewed from above, and are spaced apart from the extending portion 312 to the front side. The left and right first resin members 310 and third resin members 330 are connected by a first horizontal wire 210. In the first horizontal wire 210, a part of the first reinforcing portion 211 is exposed between the first resin member 310 and the third resin member 330. Further, the third resin member 330 and the fourth resin member 340 are arranged apart from each other in the front-back direction, and the second vertical wire 120 has a part of the extending portion 121 connected to the third resin member 330 and the fourth resin member 340. It is exposed between the resin members 340.

As shown in FIG. 5 , the fifth resin member 350 is disposed in front of the third resin member 330 and includes a main body portion 351 and a hook portion 355 .
The main body part 351 covers a part of the first inclined part 124 of the second vertical wire 120 and mainly the central part 231 and the left and right first intermediate parts 232 of the third horizontal wire 230.
The fifth resin member 350 and the left and right first resin members 310 are spaced apart from each other. Specifically, the fifth resin member 350 is disposed between the left and right first resin members 310 when viewed from above, more specifically, between the front part of the main body part 311, and is located inside from the main body part 311 in the left and right direction. are located at a distance from each other. The left and right first resin members 310 and fifth resin members 350 are connected by a third horizontal wire 230. A portion of the second intermediate portion 233 of the third horizontal wire 230 is exposed between the first resin member 310 and the fifth resin member 350. Further, the fifth resin member 350 and the third resin member 330 are arranged apart from each other in the front-rear direction, and the second vertical wire 120 has a part of the first inclined part 124 connected to the third resin member 330. It is exposed between the five resin members 350.

As shown in FIG. 4, the hooking portion 355 and the hooking portion 315 of the first resin member 310 are portions that are hooked to the front frame 12 (see FIG. 2) of the support member 20, and are made of pipe material. It is formed in a substantially arc shape in cross section along the shape of the outer peripheral surface of the frame 12 . The hook portion 315 covers the first hook portion 115 which is a portion of the first vertical wire 110 that is hooked to the front frame 12, and the hook portion 355 is a portion of the second vertical wire 120 that is hooked to the front frame 12. It covers the first hook part 125, which is the part to be stopped.

As shown in FIGS. 4 and 7, the first resin member 310, the third resin member 330, the fourth resin member 340, and the fifth resin member 350 have ribs 316, 317A, 317B, 336, 346, 357A, and 357B. The first resin member 310, the third resin member 330, the fourth resin member 340, and the fifth resin member 350 are arranged so that the portions where the ribs 316, 317A, 317B, 336, 346, 357A, and 357B are provided are different from other portions (ribs). The wall is thicker than the part without a

As shown in FIG. 6, the ribs 316, 346 are located on the upper surface of the extending portion 312 of the first resin member 310 or the fourth resin member 340 at positions before and after the second reinforcing portion 212 of the first horizontal wire 210. It is formed so as to be convex upward from the top (see also FIG. 4). The ribs 316, 346 extend back and forth, and are provided in plural numbers side by side from side to side.

Further, the rib 336 is formed to protrude upward from the upper surface of the main body portion 331 of the third resin member 330 (see FIG. 4). The ribs 336 include a pair of ribs 336A that protrude from the front and rear ends of the main body portion 331 and extend left and right, and ribs 336B, 336C, and 336D that are arranged between the pair of ribs 336A in the front and rear direction. The ribs 336B extend back and forth and are provided one each at the left and right ends of the main body portion 331. The ribs 336C and 336D are arranged between the pair of ribs 336B in the left-right direction. The rib 336C extends obliquely away from the second longitudinal wire 120 (the center of the support member 20) as it goes forward. Further, the rib 336D extends obliquely toward the second vertical wire 120 as it goes forward, and intersects with the corresponding one rib 336C in a cross shape.

As shown in FIG. 7, the ribs 317A and 317B are provided to protrude downward from the lower surface of the support portion 313 of the first resin member 310. As shown in FIG. Further, the ribs 357A and 357B are provided so as to protrude downward from the lower surface of the main body portion 351 of the fifth resin member 350. The ribs 317A, 357A extend back and forth, and are provided in plural numbers side by side from side to side. Moreover, the ribs 317B, 357B extend left and right, and are provided in plural numbers in front and back. The ribs 317A, 317B intersect with each other. Moreover, the ribs 357A and 357B intersect with each other.

As shown in FIG. 4, the covering member 400 includes a first covering member 410 and a second covering member 420.
The first covering member 410 and the second covering member 420 are parts of the support member 20 that are hooked to the rear frame 13 (see FIG. 2), and have cross sections that follow the shape of the outer peripheral surface of the rear frame 13 made of pipe material. It is formed into a substantially arc shape when viewed. The first covering member 410 covers the second hook portion 117, which is a portion of the first vertical wire 110 that is hooked to the rear frame 13, and the second covering member 420 covers the rear frame 13 of the second vertical wire 120. It covers the second hook part 127, which is the part to be hooked to. In this embodiment, the front and rear hook parts 115, 117, 125, 127 of the vertical wires 110, 120 are covered with resin (resin member 300 or covering member 400), so that the metal members directly contact each other. This makes it possible to suppress the generation of sound compared to the conventional case.

The first resin member 310 and the first covering member 410 are arranged apart from each other and are not directly connected. As a result, a portion of the first vertical wire 110, specifically, the upper end of the second inclined portion 116, is exposed between the first resin member 310 and the first covering member 410. Similarly, the second resin member 320 and the second covering member 420 are spaced apart from each other and are not directly connected. As a result, a portion of the second vertical wire 120, specifically, the upper end portion of the second inclined portion 126, is exposed between the second resin member 320 and the second covering member 420.

According to the embodiment described above, the support member 20 that receives the load from the seated person can be configured by the construction wire 100, the reinforcing wire 200, the first resin member 310, and the second resin member 320. Since the first resin member 310 and the second resin member 320 are plate-shaped, the load from the seated person can be received on the surface. In addition, since the first resin member 310 and the second resin member 320 are arranged apart from each other and are not directly connected, it is compared to, for example, a case where the entire construction wire rod 100 and reinforcing wire rod 200 are covered with a plate-shaped resin. This allows the support member 20 to have appropriate flexibility. Thereby, the comfort of sitting on the vehicle seat S can be improved.

Further, the first vertical wire 110 and the first resin member 310 are provided on both sides of the second vertical wire 120 and the second resin member 320 in the left-right direction, and the pair of connecting parts 332 of the third resin member 330 are the same in the front-back direction. Therefore, the seated person can be stably supported by the second resin member 320 including the third resin member 330 and the left and right first resin members 310. Thereby, the comfort of sitting on the vehicle seat S can be further improved.

Further, the third resin member 330 is arranged between the pair of left and right second extending parts 211B of the first reinforcing part 211, the right connecting part 332 is connected to the right second extending part 211B, and the left connecting part 332 is connected to the right second extending part 211B. Since the portion 332 is connected to the left second extension portion 211B, the third resin member 330 can firmly support the seated person. Thereby, the seated person can be more stably supported by the support member 20, so that the comfort of sitting on the vehicle seat S can be further improved.

Further, the first horizontal wire 210 has a front end portion of the second extending portion 211B disposed at the corner portion 314 of the first resin member 310, and portions on both sides of the front end portion of the second extending portion 211B extending with the main body portion 311. Since the third resin member 330 is covered and held by the protruding portion 312, the mounting rigidity of the third resin member 330 can be improved. As a result, the third resin member 330 can support the seated person even more firmly, so the support member 20 can support the seated person more stably, and the comfort of sitting on the vehicle seat S can be further improved. I can do it.

Further, the first horizontal wire 210 has a second reinforcing part 212 arranged in line with the first reinforcing part 211 behind the first reinforcing part 211, and the left and right ends of the second reinforcing part 212 are Since the supporting member 20 is covered and held by the extending portion 312 of the first resin member 310, the supporting member 20 can be strongly reinforced by the first reinforcing portion 211 and the second reinforcing portion 212. Thereby, the seated person can be supported more stably by the support member 20, so that the sitting comfort of the vehicle seat S can be further improved.

Moreover, since the first reinforcing part 211 and the second reinforcing part 212 are made of one wire, the supporting member 20 can be more strongly reinforced by the first reinforcing part 211 and the second reinforcing part 212. Thereby, the seated person can be more stably supported by the support member 20, so that the sitting comfort of the vehicle seat S can be further improved.

Furthermore, since the third resin member 330 is disposed between the left and right support parts 313, the surface of the support member 20 that supports the seated person can be made to follow the shape of the human body, and the support member 20 supports the seated person. It can be supported in a well-balanced manner. Thereby, the comfort of sitting on the vehicle seat S can be further improved.

Moreover, since the first resin member 310 and the second resin member 320 have ribs 316, 317A, 317B, 336, 346, 357A, and 357B as thick reinforcement parts, the first resin member 310 and the second resin member 320 Rigidity can be improved. Thereby, the seated person can be stably supported by the first resin member 310 and the second resin member 320, so that the sitting comfort of the vehicle seat S can be further improved.

Further, since the ribs 317A, 317B, 357A, and 357B are convex downward, the edges of the ribs 317A, 317B, 357A, and 357B are arranged above the first resin member 310 and the second resin member 320, as shown in the figure. Since the pad material does not come into contact with the pad material, damage to the pad material can be suppressed.

Although one embodiment of the invention has been described above, the invention is not limited to the above embodiment. The specific configuration can be modified as appropriate without departing from the spirit of the invention, as described below. In addition, below, the same code|symbol is attached|subjected about the structure similar to the said embodiment, a description is abbreviate|omitted suitably, and a different point from the said embodiment is demonstrated in detail.

For example, as shown in FIG. 8, one and the other of the pair of connecting portions 332 of the third resin member 330 may each have a plurality of portions connected to the first horizontal wire 210. Specifically, the right connecting portion 332, which is one of the pair of connecting portions 332, has two connecting portions 332A and 332B connected to the right second extending portion 211B of the first horizontal wire 210, The left connecting portion 332, which is the other of the pair of connecting portions 332, has two connecting portions 332C and 332D connected to the left second extending portion 211B of the first horizontal wire 210. Note that the left and right connecting portions 332 may each have a configuration having three or more connecting portions.

Further, for example, as shown in FIG. 9, the third resin member 330 may include a pair of second connecting portions 333 in addition to the pair of connecting portions (first connecting portions) 332. The second connecting portions 333 each extend rearward from the rear end of the main body portion 331 so as to fit into the gap between the extending portion 312 of the first resin member 310 and the fourth resin member 340. The first horizontal wire 210 has a connecting extension portion 211C extending left and right between the extending portion 312 and the fourth resin member 340 so as to connect the extending portion 312 and the fourth resin member 340. The connecting extension portion 211C is a part of the first extension portion 211A. The rear end portion of the second connecting portion 333 is connected to the connecting extending portion 211C while covering the connecting extending portion 211C.

Note that the connecting portion 332 and the second connecting portion 333 are not limited to a configuration in which they are connected while covering the first horizontal wire 210. For example, as shown in FIGS. 10(a) and 10(b), the distal end of the connecting portion 332 is formed in a substantially arc shape in cross section along the shape of the outer peripheral surface of the first lateral wire 210, and The structure may be such that the wire 210 is engaged with and connected to the wire 210. Note that if the connection configuration shown in FIG. 10 is applied to each of the connection parts 332A to 332D shown in FIG. 8, the attachment load to the first horizontal wire 210 per connection part can be reduced.

Furthermore, the configurations of the first resin member 310 and the second resin member 320 are not limited to the configurations described above. For example, in the embodiment described above, a rib is exemplified as a thick reinforcing part, but the reinforcing part is not limited to this, and the reinforcing part may be a boss or the like. Furthermore, the reinforcing portion may be configured as a portion that is thicker than other portions, instead of being rib-shaped or boss-shaped. Further, in the embodiment, both the first resin member 310 and the second resin member 320 had the reinforcing portion, but the invention is not limited to this, and only one of the first resin member and the second resin member has the reinforcing portion. The configuration may include a section. Further, as long as the first resin member and the second resin member have sufficient rigidity, a structure may be adopted in which no reinforcing portion is provided. Further, the first resin member may be configured without the support portion 313, for example. Further, the second resin member may be configured to include, for example, a member in which the third resin member 330 and the fourth resin member 340 of the embodiment described above are directly connected back and forth. Further, the second resin member may be configured as one member in which the third resin member 330, the fourth resin member 340, and the fifth resin member 350 are directly connected in the front and rear.

Further, in the embodiment, the first resin member 310 and the first covering member 410 are not directly connected, but the present invention is not limited to this. For example, referring to FIG. 4, the first covering member 410 is formed integrally with the first resin member 310 as a part of the first resin member 310, and is directly connected to the first resin member 310. It's okay. In other words, the second inclined portion 116 (a part of the first construction wire) of the first vertical wire 110 may not be exposed and may be covered with resin. The same applies to the second resin member, the second covering member, and the second construction wire.

Further, in the embodiment, only the front end (part) of the second extending portion 211B of the first horizontal wire 210 is disposed at the corner 314 between the main body portion 311 and the extending portion 312; The present invention is not limited to this, and for example, the entire second extending portion 211B may be disposed at the corner portion 314.

Further, the configurations of the construction wire rod 100 and the reinforcing wire rod 200 described in the embodiment are merely examples, and the present invention is not limited to the embodiment. For example, the number of construction wire rods and reinforcing wire rods may be greater or less than the configuration described in the embodiment. Furthermore, the construction wire may be, for example, an S spring. Further, referring to FIG. 3, the first horizontal wire 210 has a structure in which, for example, the right side portion (213) is divided into front and rear portions (215 and 216) like the left side portion. The first reinforcing part 211 and the second reinforcing part 212 may be made of two wires.

Furthermore, in the embodiment described above, the pair of connecting frames on which the construction wire is constructed are the front frame 12 and the rear frame 13, but the present invention is not limited to this. For example, the pair of connected frames may be the pan frame 14 and the rear frame 13.

Further, in the above embodiment, the left and right side frames 11 of the seat cushion S1 are illustrated as a pair of opposing frames, and the front frame 12 and rear frame 13 of the seat cushion S1 are illustrated as a pair of connecting frames, but the invention is not limited to this. . For example, the pair of opposing frames may be the left and right frames of the seat back S2, and the pair of connecting frames may be the upper and lower frames of the seat back S2. In this case, the up-down direction corresponds to "a second direction perpendicular to the first direction," the front side corresponds to "the seated person's side," and the rear side corresponds to "the side opposite to the seated person's side."

Further, the pair of opposing frames may be the front frame 12 and the rear frame 13 of the seat cushion S1, and the pair of connecting frames may be the left and right side frames 11. In this case, the front-rear direction corresponds to a "first direction" and the left-right direction corresponds to a "second direction perpendicular to the first direction." Alternatively, the pair of opposing frames may be the upper and lower frames of the seat back S2, and the pair of connecting frames may be the left and right frames of the seat back S2. In this case, the up-down direction corresponds to the "first direction".

Further, in the embodiment, the first construction wire rod and the first resin member were provided on both sides of the second construction wire rod and the second resin member in the first direction, but the present invention is not limited to this. The structure may be such that it is provided only on one side of the second construction wire and the second resin member in the direction.

Further, in the above embodiment, a vehicle seat S mounted on an automobile is illustrated as a vehicle seat, but the present invention is not limited to this, and a seat mounted on a vehicle other than an automobile, such as a railway vehicle, a ship, an aircraft, etc. It may be.

Furthermore, the elements described in the embodiments and modified examples described above may be implemented in any combination.

11 Side frame 12 Front frame 13 Rear frame 110 First vertical wire 120 Second vertical wire 200 Reinforcement wire 210 First horizontal wire 211 First reinforcing section 211A First extending section 211B Second extending section 212 Second reinforcing section 310 First resin member 311 Main body part 312 Extension part 313 Support part 313A Support surface 314 Corner part 316, 317A, 317B, 336, 346, 357A, 357B Rib 320 Second resin member 330 Third resin member 332 Connection part 410 First Covering member 420 Second covering member S Vehicle seat

Claims (10)

a pair of opposing frames spaced apart in a first direction;
a pair of connecting frames that are spaced apart in a second direction orthogonal to the first direction and connect the pair of opposing frames;
a first construction wire rod and a second construction wire rod installed on the pair of connection frames;
A reinforcing wire rod disposed intersecting at least the second construction wire rod when viewed from the seated person's side;
a plate-shaped first resin member that connects the first construction wire and the reinforcing wire while covering a part of the first construction wire and a part of the reinforcing wire;
a plate-shaped second resin member that connects the second construction wire and the reinforcing wire while covering a part of the second construction wire and a part of the reinforcing wire;
the first resin member and the second resin member are arranged apart from each other,
The vehicle seat, wherein the first construction wire and the first resin member are provided on both sides of the second construction wire and the second resin member in the first direction. The first resin member is
an extending portion extending in the first direction;
A support portion extending from an outer end of the extending portion in the first direction toward the outer side in the first direction, the support portion being inclined so as to be located toward the seated person as it goes outward in the first direction. The vehicle seat according to claim 1, further comprising a portion. The first resin member is
a first resin slope extending from an outer end of the extending portion in the second direction toward the outer side in the second direction, the first resin inclined portion being positioned toward the seated person as it goes outward in the second direction; a first inclined resin inclined part;
a second resin slope extending from an outer end in the second direction of the support portion toward the outer side in the second direction, the second resin slope being inclined so as to be located toward the seated person as it goes outside in the second direction; a second resin slope portion,
The vehicle seat according to claim 2, wherein the angle of inclination of the first resin slope with respect to the extension part and the angle of inclination of the second resin slope with respect to the extension part are the same. . The first resin member is a first resin slope extending from an outer end of the extending portion in the second direction toward the outer side in the second direction, and the first resin member is seated as it goes outward in the second direction. a first resin inclined part inclined so as to be located on the person's side;
The second resin member includes a fourth resin member disposed between the extending portion of one of the first resin members and the extending portion of the other first resin member,
The fourth resin member is
a second extending portion extending in the first direction;
a third resin slope extending from an outer end in the second direction of the second extending portion toward the outer side in the second direction, the third resin slope being located closer to the seated person as it goes outward in the second direction; and a third resin slope inclined as shown in FIG.
The vehicle seat according to claim 2, wherein the angle of inclination of the first resin slope with respect to the extension part and the angle of inclination of the third resin slope with respect to the extension part are the same. . The first construction wire has an extension portion extending in the second direction,
The vehicle seat according to any one of claims 2 to 4, wherein the extending portion is disposed at a connecting portion between the extending portion and the support portion. The reinforcing wire includes a second direction extending portion extending in the second direction,
The vehicle seat according to any one of claims 2 to 5, wherein the second direction extending portion is disposed at a connecting portion between the extending portion and the support portion. a first covering member made of resin and covering one end of the first construction wire in the second direction;
The vehicle according to any one of claims 2 to 6, further comprising a second covering member made of resin and covering one end of the second construction wire in the second direction. Sheet for use. 8. The vehicle seat according to claim 7, wherein a position of the first covering member in the first direction overlaps with a connecting portion between the extending portion and the supporting portion. 9. The vehicle seat according to claim 1, wherein the first resin member is disposed between the pair of opposing frames in the first direction. The reinforcing wire includes a second reinforcing wire whose portion intersects with the second construction wire is covered with the second resin member,
According to any one of claims 1 to 9, a portion of the second reinforcing wire that intersects with the second construction wire is arranged on a side of the second construction wire on the side of the seated person. vehicle seat.

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