JP6397097B2 - Vehicle seat - Google Patents

Description

  The present invention relates to a vehicle seat including a seat cushion and a seat back.

  2. Description of the Related Art Conventionally, there is known a vehicle seat that includes a pressure receiving member (pressure receiving portion) that is disposed behind an occupant between left and right side frames and is provided to be movable rearward with respect to the left and right side frames ( Patent Document 1). Such a pressure receiving part supports the upper body of the occupant from behind via a cushioning material during normal seating, and is moved backward by being pushed by the upper body of the occupant moving backward in a rear collision. The body can sink into the seat back. Since the occupant's upper body sinks into the seat back, the occupant's head is supported close to the headrest, so that the impact applied to the occupant's neck during a rear-end collision can be reduced.

JP 2010-83268 A

  By the way, even in a seat having a configuration in which the occupant's upper body can sink into the seat back at the time of a rear collision, it is naturally required that the occupant's upper body can be stably supported during normal seating.

  Then, an object of this invention is to provide the vehicle seat which can support a passenger | crew's upper body stably at the time of normal seating.

In order to achieve the above-described object, a vehicle seat according to the present invention includes a seat frame having left and right side frames disposed to face in the left-right direction, and a pressure receiving member disposed between the left and right side frames, A wire supported by the seat frame, and the pressure receiving member is inclined obliquely toward the occupant side with respect to the pressure receiving portion from the pressure receiving portion and at least a part of the left and right end portions of the pressure receiving portion. And the wire has a portion extending obliquely outward in the left-right direction and toward the occupant side with respect to the pressure receiving portion along the support portion, and supports the support portion. It is characterized by doing.

  According to such a configuration, the upper body of the occupant can be supported from behind by the pressure receiving portion, and the upper body of the occupant can be supported from the side by the support portion, so that the upper body of the occupant can be stabilized during normal seating. Can be supported.

In a vehicle seat noted before, the wire can be extended to the left and right, and configure you support the pressure receiving portion and the support portion.

In the vehicle seat described above, the wire is viewed from the occupant side, have a bent portion that is bent in a U shape, the left-right direction outer end of the bent portion than the lateral direction outer ends of the support portion It can be set as the structure arrange | positioned inside the left-right direction.
In the vehicle seat described above, the bent portion may be arranged at a position overlapping the support portion when viewed from the occupant side.

In the vehicle seat described above, the support portion is, as viewed from the occupant side, a first edge located on one of the directions orthogonal to the left-right direction and a second edge located on the other of the directions orthogonal to the left-right direction. And the length of the first end edge in the left-right direction can be longer than the length of the second end edge in the left-right direction.
In the vehicle seat described above, the pressure receiving member has a boundary portion between the pressure receiving portion and the support portion, and the wire extends from the pressure receiving portion to the support portion when viewed from the occupant side. it can be a configuration you support the support portion arranged to so as to straddle.

In the vehicle seat described above, the wire is a portion that is disposed at a position that overlaps the support portion and a first portion that extends from side to side and straddles the boundary portion when viewed from the occupant side. It can be set as the structure which has the 2nd part extended in the direction orthogonal to the left-right direction from an end.
In the vehicle seat described above, the pressure receiving member may have a through hole, and the through hole may be disposed on the inner side in the left-right direction than the outer end in the left-right direction of the bent portion.

In the vehicle seat described above, the pressure-receiving member has a boundary portion between the support portion and the pressure receiving portion, the boundary portion, as viewed from the occupant side, inclined with respect to a direction perpendicular to the lateral direction It can be set as the structure which has.
In the vehicle seat described above, the seat frame includes a lower frame that constitutes a lower frame of the seat back, and the support portion is located in one of the directions orthogonal to the left-right direction when viewed from the occupant side. A first end edge and a second end edge located at the other of the directions orthogonal to the left-right direction, wherein the first end edge is lower than the second end edge in the direction orthogonal to the left-right direction. The bent portion may be disposed closer to the first end edge than the second end edge.

In the vehicle seat described above, the support portion may be configured to be curved so as to be convex toward the occupant side .

  In the vehicle seat described above, the support portion may be configured to extend forward with respect to the pressure receiving portion.

According to such a configuration, since the support portion extends forward with respect to the pressure receiving portion, the thickness of the pad material between the support portion and the occupant can be reduced. Thereby, at the time of normal seating, a passenger | crew's upper body side part can be supported more stably by a support part compared with the case where a pad material is thick. In addition, since the pad material is easily deformed as the pad material becomes thin, the upper body of the occupant can be quickly and deeply submerged in the seat back at the time of a rear collision. As a result, the occupant's head quickly approaches the headrest and is supported, so that the impact applied to the neck can be further reduced.
If the pad material between the support portion and the occupant is thick, the upper body of the occupant is less likely to sink into the seat back. However, according to the above configuration, the pad material can be made thinner. The body can be sunk quickly and deeply into the seat back.

  In each of the vehicle seats described above, the support portion may be configured to be provided at a position corresponding to at least the height of the occupant's waist.

  According to such a configuration, at the time of normal seating, the occupant's waist can be stably supported by the support portion, so that the seating posture of the occupant can be stabilized. In addition, by configuring the support portion to extend forward with respect to the pressure receiving portion, the thickness of the pad material at the waist can be reduced, so that at the time of a rear impact, the occupant's waist can be quickly placed on the seat back, and You can sink deeply.

  In each of the vehicle seats described above, the support portion may be formed integrally with the pressure receiving portion.

According to such a configuration, the structure can be simplified and an increase in the number of components can be suppressed as compared with a configuration in which the support portion and the pressure receiving portion are formed as separate components. Further, in the configuration in which the support portion extends forward with respect to the pressure receiving portion, the rigidity of the support portion and the pressure receiving portion is improved, so that the upper body of the occupant can be supported more stably.
If the support part and the pressure receiving part are formed as separate parts, there is a possibility that the structure becomes complicated and the number of parts increases. However, the above configuration can solve the problem.

  The vehicle seat provided at the position where the support portion corresponds to the height of the waist of the occupant includes a first connection wire that extends in the left-right direction and connects the left and right side frames and the pressure receiving portion, One connecting wire may be arranged so as to pass behind the support portion at a position corresponding to the height of the waist of the occupant.

  According to such a configuration, the first connecting wire is disposed so as to pass behind the support portion provided at a position corresponding to the height of the occupant's waist, so that the load applied to the support portion is the first. It can also be supported by a connecting wire. Thereby, a passenger | crew's upper body (waist part) can be supported more stably.

  In the vehicle seat described above, the first connection wire may have a bent portion that protrudes toward at least one of the upper and lower sides behind the support portion.

  According to such a structure, since the area of the 1st connection wire arrange | positioned behind a support part becomes large, the load concerning the support part can be stably supported by a 1st connection wire. Thereby, a passenger | crew's upper body (waist part) can be supported more stably.

  In each of the vehicle seats described above, the support portion may be provided at a position corresponding to the height of the occupant's waist and a position corresponding to the height of the occupant's chest.

  According to such a configuration, the support portion has a larger area than the configuration in which the support portion is provided only at a position corresponding to the height of the waist or chest of the occupant. The upper body side portion of the occupant can be supported more stably by the portion. In addition, since the thickness of the pad material on the waist and chest can be reduced by configuring the support part to extend forward with respect to the pressure receiving part, the entire upper body of the occupant can be quickly seated during a rear impact. It can be sunk quickly and deeply into the bag.

  The vehicle seat described above includes a second connection wire that extends in the left-right direction and connects the left and right side frames and the pressure receiving portion, and the second connection wire corresponds to the height of the chest of the occupant. It can be set as the structure arrange | positioned so that it may pass behind the said support part.

  According to such a configuration, the second connecting wire is disposed so as to pass behind the support portion provided at a position corresponding to the height of the chest of the occupant, whereby the load applied to the support portion is second. It can also be supported by a connecting wire. Thereby, a passenger | crew's upper body (chest part) can be supported more stably.

  In the vehicle seat described above, the second connection wire may have a bent portion that protrudes toward at least one of the upper and lower sides behind the support portion.

  According to such a structure, since the area of the 2nd connection wire arrange | positioned behind a support part becomes large, the load concerning the support part can be stably supported by a 2nd connection wire. Thereby, a passenger | crew's upper body (chest part) can be supported more stably.

  In the vehicle seat provided at the position corresponding to the height of the occupant's waist and the position corresponding to the height of the occupant's chest, the support portion at a position corresponding to the height of the occupant's waist, It can be set as the structure mutually connected with the support part of the position corresponding to the height of the passenger | crew's chest provided above the said support part.

  According to such a configuration, compared with a configuration in which the support portion at a position corresponding to the height of the occupant's waist and the support portion at a position corresponding to the height of the chest of the occupant are provided independently. Since the area of the support portion is increased, the upper body side portion of the occupant can be more stably supported by the support portion during normal seating.

  According to the present invention, since the pressure receiving portion and the support portion extending from the left and right end portions of the pressure receiving portion toward the outside in the left-right direction are provided, the upper body of the occupant can be stably supported during normal sitting.

  Moreover, the thickness of the pad material between a support part and a passenger | crew can be made thin by setting it as the structure which extends a support part toward the front with respect to a pressure receiving part. Accordingly, the upper body side of the occupant can be supported more stably during normal sitting, and the upper body of the occupant can be quickly and deeply depressed into the seat back during a rear collision. .

  Further, by providing the support portion at a position corresponding to at least the height of the occupant's waist, the occupant's waist can be stably supported during normal seating, so that the seating posture of the occupant can be stabilized.

  Further, by forming the support part integrally with the pressure receiving part, the structure can be simplified and an increase in the number of parts can be suppressed.

  In addition, by placing the first connecting wire so as to pass behind the support portion at a position corresponding to the height of the waist of the occupant, the load applied to the support portion can be supported by the first connecting wire. The upper body (waist) can be supported more stably.

  In addition, by providing a bent portion that protrudes upward or downward on the first connection wire behind the support portion, the load applied to the support portion can be stably supported by the first connection wire. The upper body (waist) of the occupant can be supported more stably.

  In addition, by providing the support portion at a position corresponding to the height of the waist and chest of the occupant, the area of the support portion is increased, so that the upper body side of the occupant can be supported more stably during normal sitting. it can.

  In addition, since the second connecting wire is disposed so as to pass behind the support portion at a position corresponding to the height of the chest of the occupant, the load applied to the support portion can be supported by the second connecting wire. The upper body (chest) can be supported more stably.

  In addition, by providing a bent portion that protrudes upward or downward on the second connection wire behind the support portion, the load applied to the support portion can be stably supported by the second connection wire. The upper body (chest) of the occupant can be supported more stably.

  In addition, since the area of the support part is increased by connecting the support part corresponding to the waist and the support part corresponding to the chest part, the upper body side part of the occupant can be supported more stably during normal sitting. Can do.

1 is a perspective view of a vehicle seat as a vehicle seat according to an embodiment. It is a perspective view of a seat frame built in a vehicle seat. It is a front view of the seat back frame which comprises a seat frame. It is XX sectional drawing of FIG. It is a perspective view of the pressure receiving member arrange | positioned inside a seat back frame. It is sectional drawing of a seat back when a backward movement load acts on a seat back, (a) showing an embodiment in which a support part was formed in a pressure receiving member, and a figure showing a comparative example in which a support part is not formed (B). It is a perspective view of the pressure receiving member which concerns on a modification.

Next, an embodiment of the present invention will be described in detail with reference to the drawings as appropriate.
As shown in FIG. 1, a vehicle seat according to an embodiment is configured as a vehicle seat S used for a driver's seat of an automobile, a seat cushion S1 on which an occupant is seated, a seat back S2 that is a backrest, The headrest S3 is mainly provided. As will be described in detail later, the vehicle seat S is configured so that the other vehicle collides with the rear portion of the own vehicle or the rear portion of the retreating vehicle collides with the other vehicle or the structure. When the backward movement load acts on the seat back S2, the upper body of the occupant is sunk into the seat back S2.

  A seat frame F as shown in FIG. 2 is built in the seat cushion S1 and the seat back S2. The seat frame F is mainly composed of a seat cushion frame F1 constituting a frame of the seat cushion S1 and a seat back frame F2 constituting a frame of the seat back S2. The seat cushion S1 is configured by covering a seat cushion frame F1 with a seat cushion pad made of a cushion material such as urethane foam and a skin material made of synthetic leather or fabric, and the seat back S2 is placed on the seat back frame F2. The seat back pad 50 made of a cushion material and the skin material 60 are covered (see FIG. 4).

The seat cushion frame F1 is installed on the floor of the automobile so as to be slidable back and forth via the slide rail SL. Further, the lower portion of the seat back frame F2 is connected to the rear portion of the seat cushion frame F1 via a reclining mechanism RL so as to be tiltable back and forth.
In this specification, front and rear, left and right, and top and bottom are based on an occupant seated on the vehicle seat S in a state where the seat back S2 is not tilted by the reclining mechanism RL.

  The seat back frame F2 mainly includes an upper frame 10, left and right side frames 20, and a lower frame 30, and the upper frame 10, the left and right side frames 20, and the lower frame 30 are integrally formed by welding or the like. It is formed in a combined frame shape. Between the left and right side frames 20, a pressure receiving member 40 that supports the upper body of the occupant so as to move backward is disposed.

  The upper frame 10 is made of a pipe material bent in a substantially U shape, and a pair of left and right support brackets 12 for attaching the headrest S3 are fixed to the front side of the horizontal pipe portion 11 extending in the left-right direction by welding. Yes. The left and right vertical pipe portions 13 extending in the vertical direction of the upper frame 10 are respectively integrated with left and right side frame body portions 21 coupled to the lower portion thereof, and the left and right frames (left and right side frames) of the seat back S2. 20).

  The left and right side frame main body portions 21 are formed in a substantially U shape in sectional view by pressing a metal plate or the like, and are arranged to face in the left-right direction. The side frame main body portion 21 is coupled to the vertical pipe portion 13 while holding the vertical pipe portion 13 at the upper portion thereof, and has a protruding portion 22 whose lower portion projects forward from the upper portion. Is formed.

  The pressure receiving member 40 is a plate-like member made of resin or the like. As shown in FIG. 3, as shown in FIG. 3, the pressure receiving member 40 is an example of a lower connection wire W1 as an example of a first connection wire and an example of a second connection wire. The upper connecting wire W2 is provided so as to be movable backward with respect to the left and right side frames 20. More specifically, the upper connecting wire W2 is locked to a locking portion 45 formed at the upper part on the back side of the pressure receiving member 40, and the left and right end portions are locked to the support tongue 14 fixed to the vertical pipe portion 13. By doing so, the upper part of the pressure receiving member 40 and the left and right side frames 20 are connected. Further, the lower connecting wire W1 is locked to a locking portion 46 formed on the lower portion on the back side of the pressure receiving member 40, and the left and right end portions can be rotated rearwardly fixed to the inner side surface of the side frame main body portion 21. The lower part of the pressure receiving member 40 is connected to the left and right side frames 20 by being locked to the link member 23.

  In such a pressure receiving member 40, when a backward movement load is applied, the bent portions at the left and right ends of the upper connecting wire W2 are bent, or the left and right ends of the lower connecting wire W1 are rearward by the rotation of the link member 23. Or move backward to the left and right side frames 20. The link member 23 is configured to swing backward by a known mechanism using a tension coil spring (reference numeral omitted) when a backward movement load of a predetermined value or more is applied.

  The pressure receiving member 40 mainly includes a pressure receiving portion 41 that is located behind the occupant seated on the seat cushion S1, and support portions 42 that are integrally formed with the pressure receiving portion 41 on both the left and right sides of the pressure receiving portion 41. ing.

  As shown in FIG. 4, the support portion 42 supports the upper body side portion of the occupant, more specifically, the rear portion of the upper body side portion, through the side portion 52 of the seat back pad 50 in the seat back S2. It is a part, and is provided so as to extend from the left and right end portions of the pressure receiving portion 41 toward the diagonally forward side in the left and right direction. As shown in FIG. 5, the left and right support portions 42 are respectively provided with a waist support portion 42A provided at a position corresponding to the height of the occupant's waist, and the height of the chest of the occupant above the waist support portion 42A. It includes a chest support portion 42B provided at a corresponding position, and a connecting portion 42C that connects the waist support portion 42A and the chest support portion 42B to each other. The waist support part 42A mainly supports the rear side part of the side of the occupant's waist via the side part 52 of the seat back pad 50, and the chest support part 42B via the side part 52 of the seat back pad 50. Mainly supports the rear part of the side of the occupant's upper body corresponding to the chest height.

  As shown in FIG. 4, the front surfaces of the left and right support portions 42 are disposed in contact with the side portions 52 of the seat back pad 50 in the seat back S2. When the occupant is seated on the seat cushion S1 and leans against the seat back S2, the side portion 52 of the seat back pad 50 bends, and the support portion 42 passes through the side portion 52 of the seat back pad 50 from the inside. To support the upper body side of the occupant. Moreover, the support part 42 can be elastically deformed back and forth with respect to the pressure receiving part 41, and when a load is input from the front, the support part 42 bends backward while supporting the upper body side part of the occupant.

  A lower connecting wire W1 and an upper connecting wire W2 (not shown in FIG. 4) that connect the pressure receiving member 40 and the left and right side frames 20 are disposed so as to pass behind the support portion. Specifically, the lower connecting wire W1 is bent from the left and right ends of the portion extending along the rear surface of the pressure receiving portion 41 toward the diagonally forward side outward in the left-right direction, and is supported along the rear surface of the waist support portion 42A. It is arranged behind the part 42A. Although not shown, the upper connecting wire W2 is also directed obliquely forward to the outside in the left-right direction from the left and right ends of the portion extending along the rear surface of the pressure receiving portion 41, similarly to the lower connecting wire W1 (see FIG. 4). And is disposed behind the chest support portion 42B so as to be along the rear surface of the chest support portion 42B. The left and right ends of the lower connecting wire W1 are bent toward the link member 23 of the side frame 20, and then locked to the link member 23. The left and right ends of the upper connecting wire W2 are supported by the support tongues 14 of the side frame 20. After being bent toward the front, the support tongue 14 is locked. Further, as shown in FIG. 3, the lower connecting wire W1 has a bent portion W11 that is bent so as to protrude downward at a portion disposed behind the waist support portion 42A. W2 has a bent portion W21 that is bent so as to protrude upward at a portion disposed behind the chest support portion 42B.

  As shown in FIG. 4, the seat back pad 50 that covers the seat back frame F <b> 2 includes a central portion 51 that faces the pressure receiving portion 41, and left and right sides that are provided on both the left and right sides of the central portion 51 and project forward from the central portion 51. Side portion 52. In the present embodiment, since the support portions 42 that extend obliquely forward are provided on the left and right sides of the pressure receiving member 40, for example, compared with a configuration in which the support portion 42 extends outward in the left-right direction. Thus, the distance between the support portion 42 and the occupant is narrow. Therefore, of the left and right side portions 52, the portion closer to the central portion 51 is thinner in the front-rear direction than the conventional seat structure (see the two-dot chain line) that does not have the support portion 42.

Next, the effect of the vehicle seat S configured as described above will be described.
Since the vehicle seat S is provided with the support portion 42 on the pressure receiving member 40, during normal seating, the upper body (back) of the occupant is supported from the rear by the pressure receiving portion 41 via the seat back pad 50, The upper body side portion of the occupant can be supported obliquely from behind by the support portion 42. Thereby, compared with the conventional seat structure which does not have the support part 42, a passenger | crew's upper body can be supported stably.

  In the present embodiment, as described above, the thickness of the seat back pad 50 (side part 52) between the support part 42 and the occupant is ensured by the support part 42 extending forward with respect to the pressure receiving part 41. Since the thickness can be reduced, the upper body side portion of the occupant can be more stably supported by the support portion 42 than when the side portion 52 is thick. Moreover, since the support part 42 has both the waist | hip | lumbar part support part 42A and the chest support part 42B, since the area of the support part 42 becomes large compared with the structure which has only one, a passenger | crew's upper body side part is made. It can be supported more stably. In particular, in this embodiment, since the waist support part 42A and the chest support part 42B are connected to each other by the connection part 42C, the area of the support part 42 becomes larger, and the upper body side part of the occupant is supported more stably. can do. Moreover, since the support part 42 has the waist | hip | lumbar part support part 42A, since a passenger | crew's waist | hip | lumbar part, ie, the lower part of a passenger | crew's upper body, can be supported stably, a passenger | crew's seating attitude | position can be stabilized.

  Further, in the present embodiment, the support portion 42 is formed integrally with the pressure receiving portion 41 and extends forward with respect to the pressure receiving portion 41, so that the pressure receiving member 40 has a substantially U shape in plan view. Will be done. Thereby, since the rigidity of the pressure receiving member 40 which has the support part 42 can be improved, a passenger | crew's upper body can be supported more stably. In addition, since the support part 42 is formed integrally with the pressure receiving part 41, the structure can be simplified and the increase in the number of parts can be suppressed as compared with a structure in which each is formed as a separate part. You can also.

  Furthermore, in this embodiment, since the lower connecting wire W1 is disposed so as to pass behind the waist support part 42A, the load applied to the waist support part 42A can also be supported by the lower connection wire W1. In particular, in the present embodiment, since the lower connecting wire W1 has the bent portion W11 behind the waist support portion 42A, the area of the portion arranged behind the waist support portion 42A of the lower connection wire W1 increases. The load applied to the waist support portion 42A can be stably supported by the lower connecting wire W1. As a result, the occupant's lower back can be supported more stably. Similarly, the upper connecting wire W2 is disposed so as to pass behind the chest support portion 42B, and further has the bent portion W21 behind the chest support portion 42B, so that the chest of the occupant can be supported more stably. it can.

  As shown in FIG. 5, the support portion 42 has a substantially inverted triangular shape (from top to bottom that is inclined so that the end portion 42D on the outer side in the left-right direction approaches the left and right end portions of the pressure receiving portion 41 from top to bottom. Therefore, it can be arranged along the body shape of the occupant in the seat back S2. Thereby, a passenger | crew's upper body side part can be supported more stably.

  Next, see FIG. 6 for the effects of the vehicle seat S when another vehicle collides with the rear part of the host vehicle or when the rear part of the host vehicle that is moving back collides with another vehicle or the like (during rear collision). While explaining. Here, FIG. 6A is a diagram showing the vehicle seat S of the present embodiment, and FIG. 6B is a comparative example (conventional) vehicle in which the pressure receiving member 140 is not provided with a support portion. It is a figure which shows a sheet | seat. Supplementally, in the vehicle seat S of the present embodiment, the thickness in the front-rear direction near the central portion 51 of the left and right side portions 52 of the seat back pad 50 is the same as that of the left and right side portions 152 of the seat back pad 150 of the comparative example. It is thinner than the thickness near the central portion 151.

  When a backward movement load acts on the seat back S2 from the occupant at the time of a rear collision, as shown in FIG. 6A, the seat back pad 50 moves backward while being bent from the position before the load input indicated by a two-dot chain line, The pressure receiving member 40 is moved backward by being pushed by the seat back pad 50. At this time, the left and right side portions 52 of the seat back pad 50 of the present embodiment shown in FIG. 6A are more longitudinal than the left and right side portions 152 of the seat back pad 150 of the comparative example shown in FIG. Since it is easy to bend because it is thin, it is bent more quickly and largely than the left and right side portions 152 of the comparative example by inputting the backward movement load. As a result, the entire body of the occupant sinks quickly and deeply into the seat back pad 50. As a result, the occupant's head quickly approaches the headrest S3, so that the impact applied to the neck by the rear impact can be further reduced.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment. About a concrete structure, it can change suitably in the range which does not deviate from the meaning of this invention.

  The specific configuration of the support portion 42 shown in the embodiment is an example, and the present invention is not limited to the configuration of the embodiment. For example, in the above-described embodiment, the waist support part 42A and the chest support part 42B are connected to each other by the connection part 42C. However, the present invention is not limited to this, and the waist support part 42A and the chest support part 42B are independently (Not connected). Moreover, although the structure which has both the waist | hip | lumbar part support part 42A and the chest support part 42B was shown in the said embodiment, it is not limited to this, For example, a support part is only in the position corresponding to the height of a passenger | crew's waist | hip | lumbar part. It may be provided, or may be provided only at a position corresponding to the height of the chest of the occupant.

  Moreover, in the said embodiment, although the support part 42 was integrally formed with the pressure receiving part 41, it is not limited to this, For example, the support part may be formed separately from the pressure receiving part. According to this, since a support part and a pressure receiving part can be manufactured separately, variations, such as a size and a shape which can manufacture a pressure receiving part and a support part, can be increased. Specifically, for example, when the pressure receiving part and the support part are manufactured by injection molding, a mold for manufacturing a member in which the pressure receiving part and the support part are integrally formed is for manufacturing only the support part. Compared to conventional molds, the shape of the cavity is larger and more complicated, so the size and shape of the support part are limited in consideration of resin flowability, resin curing, and removal of molded products. May occur. However, since the pressure receiving portion and the support portion can be manufactured separately, such a restriction is reduced, and thus variations in size and shape that can be manufactured increase. Thereby, the design freedom of a support part or a pressure receiving part can be improved.

  In the embodiment, as shown in FIG. 3, the lower connecting wire W1 (first connecting wire) has a bent portion W11 that protrudes downward behind the waist supporting portion 42A (supporting portion 42). Although illustrated, this invention is not limited to this. For example, the 1st connection wire may be the composition which has the bent part which becomes convex toward the back behind a support part. Moreover, the structure which has both the bending part which becomes convex toward the upper part, and the bending part which becomes convex toward the downward direction may be sufficient as the 1st connection wire behind the support part. Moreover, the structure which does not have a bending part in the back of a support part may be sufficient as a 1st connection wire. The same applies to the second connecting wire.

  In the embodiment, as shown in FIG. 4, the left and right ends of the lower connecting wire W1 (first connecting wire) are arranged along the rear surface of the waist support portion 42A (support portion 42). The invention is not limited to this, and for example, the first connecting wire may be disposed at a position away from the support portion. The same applies to the second connecting wire. In the above-described embodiment, wire-like members (the lower connecting wire W1 and the upper connecting wire W2) are exemplified as members that connect the left and right side frames 20 and the pressure receiving member 40 (pressure receiving portion 41). It is not limited to this. For example, the member that connects the left and right side frames and the pressure receiving portion may be a coil spring-like member or a belt-like (band-like) member.

  The specific configuration of the pressure receiving portion 41 shown in the embodiment is an example, and the present invention is not limited to the configuration of the embodiment. For example, as shown in FIG. 7, the pressure receiving part 41 may have a configuration having a through hole 41A (slit). According to this, it is possible to reduce the weight of the pressure receiving portion 41 (pressure receiving member 40). Moreover, in the said embodiment, although the pressure receiving part 41 and the support part 42 were formed in plate shape, it is not limited to this, It does not need to be plate shape.

  The specific configuration of the seat frame F (the seat cushion frame F1 and the seat back frame F2) shown in the embodiment is an example, and the present invention is not limited to the configuration of the embodiment. For example, in the above-described embodiment, the left and right side frames 20 of the seat back frame F2 are configured by the pipe-shaped vertical pipe portion 13 and the plate-shaped side frame main body portion 21, but are not limited thereto. The side frame may be composed of only a pipe-shaped frame or may be composed of only a plate-shaped frame.

  In the said embodiment, although the vehicle seat S used by a motor vehicle was illustrated as a vehicle seat, this invention is not limited to this, For example, the sheet | seat used for a ship, an aircraft, etc. It can also be applied to.

20 Side frame 40 Pressure receiving member 41 Pressure receiving portion 42 Support portion 42A Lumbar support portion 42B Chest support portion 42C Connection portion S Vehicle seat S1 Seat cushion S2 Seat back W1 Lower connection wire W2 Upper connection wire W11 Bending portion W21 Bending portion

Claims (11)

A seat frame having left and right side frames disposed facing each other in the left-right direction;
A pressure receiving member disposed between the left and right side frames;
A wire supported by the seat frame,
The pressure receiving member includes a pressure receiving portion, and a support portion that extends obliquely toward the occupant side with respect to the pressure receiving portion from the left and right ends from at least a part of the left and right end portions of the pressure receiving portion,
The vehicle seat according to claim 1, wherein the wire has a portion extending obliquely toward the occupant side in the left-right direction with respect to the pressure receiving portion along the support portion, and supports the support portion. The wire extends to the right and left, the vehicle seat according to claim 1, wherein the benzalkonium to support the pressure receiving portion and the support portion. The wire, as viewed from the occupant side, have a bent portion that is bent in a U shape,
The vehicle seat according to claim 1 or 2 , wherein an end on the outer side in the left-right direction of the bent portion is disposed on an inner side in the left-right direction with respect to an end on the outer side in the left-right direction of the support portion. The vehicle seat according to claim 3 , wherein the bent portion is disposed at a position overlapping the support portion when viewed from the occupant side. The support part has a first end edge located on one side in a direction orthogonal to the left-right direction and a second end edge located on the other side in a direction orthogonal to the left-right direction when viewed from the passenger side,
The vehicle seat according to any one of claims 1 to 4 , wherein a length of the first end edge in the left-right direction is longer than a length of the second end edge in the left-right direction. The pressure receiving member has a boundary portion between the pressure receiving portion and the support portion,
The wire, as viewed from the occupant side, one of claims 1 to 5, wherein is disposed so as to straddle the boundary portion to the supporting portion from the pressure receiving portion, wherein the benzalkonium to support the supporting part The vehicle seat according to claim 1. The wire is a first portion that extends from side to side and straddles the boundary portion as viewed from the occupant side, and a portion that is disposed at a position overlapping the support portion, and is orthogonal to the left and right directions from the end of the first portion. The vehicle seat according to claim 6 , further comprising a second portion extending in a direction. The pressure receiving member has a through hole;
The through hole, the vehicle seat according to claim 3 or claim 4, characterized in that it is arranged in the left-right direction inner side than the left-right direction outer end of the bent portion. The pressure receiving member has a boundary portion between the pressure receiving portion and the support portion,
The vehicle seat according to any one of claims 1 to 8 , wherein the boundary portion is inclined with respect to a direction orthogonal to the left-right direction when viewed from the occupant side. The seat frame has a lower frame constituting a lower frame of a seat back,
The support part has a first end edge located on one side in a direction orthogonal to the left-right direction and a second end edge located on the other side in a direction orthogonal to the left-right direction when viewed from the passenger side,
The first edge is located farther from the lower frame than the second edge in a direction perpendicular to the left-right direction;
The bent portion includes a second claim than the edge, characterized in that it is disposed adjacent to the first end edge 3, a vehicle according to any one of claims 4 and 8 Sheet. The vehicle seat according to any one of claims 1 to 10 , wherein the support portion is curved so as to be convex toward the occupant side.

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