Vehicle seat

Abstract

Provided is a vehicle seat capable of suppressing vibration during operation of an air blower. A vehicle seat is provided with: a seat frame (F) having left and right first side frames (11) disposed so as to be separated from each other in the left-right direction; a first pressure receiving member (30) that supports the seated person and is disposed between the left and right first side frames (11); and a blower (110) attached to the first pressure receiving member (30). The first pressure receiving member (30) includes an elastic member (resin member (31)) having elasticity, and the blower (110) is attached to the elastic member.

Description

Technical Field

[0001] The invention relates to a seat for a vehicle. Background Art

[0002] Previously, there is known a vehicle seat, which includes: left and right side frames; a front frame connected to the front ends of the left and right side frames; a rear frame connected to the rear ends of the left and right side frames; and a support plate for supporting an occupant (for example, Japanese Patent Laid-Open No. 2012-197032). The support plate is formed by bending a metal plate-like member and is installed in a manner of being mounted on the front frame and the rear frame. In addition, a blower is fixed to the back of the support plate. Summary of the invention

[0003] In addition, in a vehicle seat, it is desired that the vibration generated when the blower is in operation is not easily transmitted to the seated person.

[0004] Therefore, the present disclosure provides a vehicle seat that can suppress vibration when a blower is operating.

[0005] The vehicle seat may be constructed such that: a seat frame has left and right side frames separately arranged in the left-right direction; a pressure-bearing member that supports a seated person and is arranged between the left and right side frames; and a blower installed on the pressure-bearing member, the pressure-bearing member including an elastic member having elasticity, and the blower is installed on the elastic member.

[0006] The pressure-receiving member includes an elastic member having elasticity, and the blower is mounted on the elastic member, thereby suppressing vibration of the blower during operation.

[0007] The pressure receiving member may be in a plate shape.

[0008] Since the pressure-receiving member is in a plate shape, it is easy to mount the blower on the pressure-receiving member.

[0009] The elastic member may be configured to include an elastic body.

[0010] By including an elastic body in the elastic member for mounting the blower, vibrations of the blower during operation can be well suppressed.

[0011] The pressure receiving member may be configured to include the elastic member and a wire material covered by the elastic member.

[0012] The pressure receiving member may include a mounting portion for mounting a member different from the air blower on the pressure receiving member, and the air blower may be arranged at a position not overlapping with the mounting portion when viewed from a seated person's side.

[0013] By arranging the blower at a position that does not overlap with the mounting portion when viewed from the seated person's side, the blower is less likely to become an obstruction when a member other than the blower is mounted on the mounting portion.

[0014] The vehicle seat may include a cushion covering the seat frame and having an air path therein; and a duct connecting the blower and the air path, wherein the duct is disposed at a position not overlapping the mounting portion when viewed from a seated person.

[0015] By arranging the duct at a position that does not overlap with the mounting portion when viewed from the seated person's side, the duct is less likely to become an obstruction when a component other than the blower is mounted on the mounting portion.

[0016] The vehicle seat may be constructed such that: a cushion covers the seat frame and has an air path inside; and a duct connects the blower to the air path, the blower is arranged on the side of the pressure-bearing member opposite to the seated person side, the pressure-bearing member has a through hole, and the duct passes through the through hole from the side of the pressure-bearing member opposite to the seated person side and extends toward the seated person side.

[0017] The duct can be arranged compactly by passing through the through hole of the pressure receiving member from the side of the pressure receiving member opposite to the seat occupant side and extending toward the seat occupant side.

[0018] The side frame may be long in a direction perpendicular to the left-right direction, and the air blower may be positioned in a longitudinal direction of the side frame so as to overlap with the through hole.

[0019] By making the position of the blower in the longitudinal direction of the side frame overlap with the through hole of the pressure-receiving member, the distance from the blower to the through hole can be shortened. As a result, the duct can be shortened.

[0020] The side frame can be constructed so that it is long in a direction orthogonal to the left-right direction, and the vehicle seat also includes a side frame cover, which covers at least the left-right inner side of one end portion of the side frame in the long side direction, and the position of the blower in the long side direction is closer to the other end portion of the side frame in the long side direction than the side frame cover.

[0021] By positioning the blower in the longitudinal direction closer to the other end of the side frame in the longitudinal direction than the side frame cover, the blower can be arranged away from the side frame cover.

[0022] The vehicle seat can be constructed as follows: the vehicle seat includes: a cushion covering the seat frame and having an air path inside; and a duct connecting the blower to the air path, the side frame is long in a direction perpendicular to the left and right directions, the vehicle seat also includes a side frame cover, the side frame cover covers at least the left and right inner side of one end portion of the side frame in the long side direction, and the connection portion between the duct and the air path is located in the long side direction closer to the other end portion of the side frame in the long side direction than the side frame cover.

[0023] By positioning the connection portion between the duct and the air path closer to the other end portion of the side frame in the longitudinal direction than the side frame cover, the connection portion between the duct and the air path can be arranged away from the side frame cover.

[0024] The side frame can be constructed so that it is long in a direction orthogonal to the left-right direction, and the vehicle seat also includes a side frame cover, which covers at least the left-right inner side of one end portion in the long side direction of the side frame, and the position of the blower in the long side direction overlaps with the side frame cover.

[0025] By making the position of the blower in the longitudinal direction overlap with the side frame cover, the blower can be arranged within the width of the side frame cover in the longitudinal direction of the side frame.

[0026] The air blower may be directly mounted on the elastic member.

[0027] By directly mounting the blower on the elastic member, the number of parts can be reduced.

[0028] Furthermore, when a sensor for detecting a seated person is provided on a vehicle seat, it is desirable that the sensor and the blower be arranged compactly.

[0029] Therefore, the present disclosure provides a vehicle seat in which a sensor and a blower can be compactly arranged.

[0030] The vehicle seat may be constructed such that it includes: a seat frame having left and right side frames separately arranged in the left-right direction; a pressure-bearing member that supports a seated person and is arranged between the left and right side frames; a sensor for detecting the seated person; and an air blower, wherein the sensor is mounted on a seated person side surface of the pressure-bearing member, and the air blower is mounted on a side surface of the pressure-bearing member opposite to the seated person side.

[0031] By attaching the sensor to the seat occupant side surface of the pressure receiving member and attaching the blower to the side surface of the pressure receiving member opposite to the seat occupant side, the sensor and the blower can be compactly arranged.

[0032] The sensor may be arranged at a position overlapping with the air blower when viewed from a seated person's side.

[0033] By arranging the sensor at a position overlapping with the blower when viewed from the seated person's side, the sensor and the blower can be arranged more compactly.

[0034] The vehicle seat may be constructed such that: a cushion covers the seat frame and has an air path inside; and a duct connects the blower to the air path, wherein the side frame is long in a direction perpendicular to the left-right direction, and a connection portion between the duct and the air path overlaps with the sensor at a position in the long side direction of the side frame.

[0035] By arranging the connection portion between the duct and the air passage to overlap with the sensor in the longitudinal direction of the side frame, the sensor and the connection portion between the duct and the air passage can be compactly arranged in the longitudinal direction of the side frame.

[0036] The connection portion between the duct and the ventilation path may be arranged on one side in the left-right direction relative to the left-right center of the pressure-receiving member, and the sensor may be arranged on the other side in the left-right direction relative to the left-right center of the pressure-receiving member.

[0037] By arranging the connection portion between the duct and the air passage on one side of the left-right center of the pressure-receiving member and arranging the sensor on the other side in the left-right direction, the size of the pressure-receiving member can be suppressed.

[0038] The sensor may be arranged at a position not overlapping with the duct when viewed from the seated person's side.

[0039] By arranging the sensor at a position that does not overlap the duct when viewed from the seated person's side, the duct can be shortened and the duct can be formed into a simpler shape.

[0040] The sensor may be arranged at a position not overlapping with the air blower when viewed from a seated person's side.

[0041] By arranging the sensor at a position that does not overlap with the blower when viewed from the seated person's side, the vibration of the blower during operation is less likely to affect the detection of the sensor.

[0042] The sensor may be configured so that the position of the sensor in the left-right direction does not overlap with the air blower.

[0043] By making the position of the sensor in the left-right direction not overlap with the blower, the sensor can be arranged further away from the blower.

[0044] The side frame can be constructed such that the side frame is long in a direction orthogonal to the left-right direction, the vehicle seat also includes a side frame cover, the side frame cover covers at least the left-right inner side of one end portion in the long side direction of the side frame, the position of the blower in the long side direction overlaps with the side frame cover, and the position of the sensor in the long side direction is closer to the other end portion of the side frame in the long side direction than the side frame cover.

[0045] By overlapping the longitudinal position of the blower with the side frame cover and positioning the sensor closer to the other end of the side frame in the longitudinal direction than the side frame cover, the sensor can be arranged farther away from the blower.

[0046] As an example, the sensor is a pressure sensor.

[0047] In addition, in a vehicle seat, it is desired that a pressure-receiving member that supports a seated person and a blower be arranged compactly.

[0048] Therefore, the present disclosure provides a vehicle seat in which a pressure-receiving member and a blower can be compactly arranged.

[0049] The vehicle seat can be constructed such that it includes: a seat frame having left and right side frames separately arranged in the left-right direction, and a pair of connecting frames connecting the left and right side frames and separately arranged in a direction orthogonal to the left-right direction; a pressure-bearing member that supports a seated person and is arranged between the left and right side frames; and an air blower installed on the pressure-bearing member, the pressure-bearing member having: a resin member in a plate shape; and a first reinforcing wire material that is mounted on the left and right side frames or the pair of connecting frames and covered by the resin member, and the air blower is arranged at a position that does not overlap with the first reinforcing wire material when viewed from the seated person's side.

[0050] By arranging the air blower at a position not overlapping with the first reinforcing wire when viewed from the seated person's side, the pressure-receiving member and the air blower can be compactly arranged in the direction in which the pressure-receiving member and the seated person face each other.

[0051] The first reinforcing wire may have a bent portion, and a position of the air blower in a direction in which the first reinforcing wire is installed may overlap with the bent portion.

[0052] By making the position of the blower in the direction in which the first reinforcing wire is laid overlap with the bent portion, the blower is installed near the bent portion of the first reinforcing wire where rigidity is high. This can improve the installation strength of the blower.

[0053] The vehicle seat may include a control device for controlling the blower and mounted on the pressure-receiving member, wherein a position of the control device in a direction in which the first reinforcing wire is laid overlaps the bent portion.

[0054] By making the position of the control device overlap with the bent portion in the direction in which the first reinforcing wire is laid, the control device is mounted near the bent portion of the first reinforcing wire where rigidity is high. This can improve the mounting strength of the control device.

[0055] The control device may be arranged at a position not overlapping with the first reinforcing wire when viewed from a seated person's side.

[0056] By arranging the control device at a position not overlapping with the first reinforcing wire when viewed from the seated person's side, the pressure-receiving member and the control device can be compactly arranged in the direction in which the pressure-receiving member and the seated person face each other.

[0057] The first reinforcing wire may include a first wire and a second wire, the first wire and the second wire being separately arranged in a direction orthogonal to a direction in which the first reinforcing wire is installed, and the air blower being arranged between the first wire and the second wire when viewed from the seated person's side.

[0058] By arranging the blower between the first wire and the second wire when viewed from the seated person side, the blower is attached to the portion of the pressure receiving member between the first wire and the second wire reinforced by the first wire and the second wire, thereby improving the attachment strength of the blower.

[0059] The vehicle seat may be constructed such that: the cushion covers the seat frame and has an air path inside; and a duct connects the blower to the air path; the pressure-bearing member has a second reinforcing wire, the second reinforcing wire extends in a direction orthogonal to the first reinforcing wire when viewed from the seat occupant's side and is covered by the resin member, and the connection portion between the duct and the air path is arranged at a position closer to the second reinforcing wire than to the blower when viewed from the seat occupant's side.

[0060] By arranging the connection portion between the duct and the air path closer to the second reinforcing wire than the blower when viewed from the seated person's side, the connection portion between the duct and the air path can be arranged near the portion of the pressure receiving member reinforced by the second reinforcing wire.

[0061] It can be constructed as follows: the vehicle seat includes a control device, which is used to control the air blower and is installed on the pressure-bearing member; the first reinforcing wire is erected on the pair of connecting frames, the first reinforcing wire includes a center wire arranged in the center in the left-right direction, the air blower is arranged on one side of the center wire in the left-right direction, and the control device is arranged on the other side of the center wire in the left-right direction.

[0062] By arranging the blower on one side in the left-right direction relative to the center wire and arranging the control device on the other side in the left-right direction, it is easy to ensure the installation positions of the blower and the control device.

[0063] It can be constructed so that the first reinforcing wire includes: a first side wire, which is arranged on one side in the left-right direction relative to the center wire; and a second side wire, which is arranged on the other side in the left-right direction relative to the center wire, when observed from the seated person's side, the air blower is arranged between the center wire and the first side wire, and when observed from the seated person's side, the control device is arranged between the center wire and the second side wire.

[0064] By arranging the blower between the center wire and the first side wire when viewed from the seated person's side, and arranging the control device between the center wire and the second side wire when viewed from the seated person's side, the mounting strength of the blower and the control device can be improved.

[0065] The vehicle seat may be constructed such that the vehicle seat includes: a cushion covering the seat frame and having an air path inside; and a duct connecting the blower to the air path, the blower being arranged on the side of the pressure-bearing member opposite to the seated person side, the resin member having a through hole, the duct passing through the through hole from the side of the pressure-bearing member opposite to the seated person side and extending to the seated person side, the pressure-bearing member having a second reinforcing wire extending in a direction orthogonal to the first reinforcing wire when viewed from the seated person side and covered by the resin member, the second reinforcing wire passing through a portion of an edge of the through hole.

[0066] By passing the second reinforcing wire material through a portion of the edge of the through hole of the resin member, the edge of the through hole of the resin member can be reinforced by the second reinforcing wire material.

[0067] The resin member may be configured to have a mesh portion in a mesh shape.

[0068] The resin member having the mesh portion can improve the cushioning properties of the pressure-receiving member and reduce the weight of the pressure-receiving member.

[0069] The resin member may be configured to include an elastomer.

[0070] By including the elastic body in the resin member, vibration during operation of the blower can be suppressed.

[0071] Furthermore, in a vehicle seat, it is desired that the blower has high mounting strength.

[0072] Therefore, the present disclosure provides a vehicle seat that can improve the mounting strength of a blower.

[0073] The vehicle seat can be constructed such that it includes: a seat frame having left and right side frames separately arranged in the left-right direction; a pressure-bearing member that supports a seated person and is arranged between the left and right side frames; and a blower installed on the pressure-bearing member, the pressure-bearing member having: a plate-shaped blower mounting portion having a first through hole for engaging the blower with a snap-in portion of the pressure-bearing member; and a thick-walled portion that is connected to the blower mounting portion and is arranged at least in a portion around the blower mounting portion, and protrudes at least further toward the seated person than the blower mounting portion.

[0074] By providing a thick wall portion around the fan mounting portion, the strength of the fan mounting portion is improved, thereby improving the mounting strength of the fan. In addition, by providing a thick wall portion around the fan mounting portion, the protrusion amount of the engaging portion engaged with the fan mounting portion toward the seated person side can be relatively reduced.

[0075] It can be constructed that the vehicle seat includes a mounting component, which is used to mount the blower on the pressure-bearing component, and has the engaging portion that engages with the first through hole from the seated occupant side toward the side opposite to the seated occupant side, and the top end of the engaging portion protrudes further toward the side opposite to the seated occupant side than the blower mounting portion.

[0076] By making the tip end of the engaging portion that engages with the blower mounting portion protrude further toward the side opposite to the seated person side than the blower mounting portion, the protrusion amount of the mounting member toward the seated person side can be reduced.

[0077] The thick wall portion may be configured to protrude further toward the seated person than the mounting member.

[0078] By making the thick portion protrude toward the seat occupant more than the mounting member, the mounting member can be prevented from protruding toward the seat occupant more than the thick portion.

[0079] The thick-walled portion may be constructed such that the thick-walled portion includes a first thick-walled portion and a second thick-walled portion, the first thick-walled portion and the second thick-walled portion protrude further toward the side opposite to the seated person than the blower mounting portion, the blower mounting portion is located between the first thick-walled portion and the second thick-walled portion, the blower has a plate-shaped mounted portion, the mounted portion has a second through hole for the engaging portion to engage, the mounted portion is on the side opposite to the seated person relative to the blower mounting portion, and is arranged to be in contact with the first thick-walled portion and the second thick-walled portion.

[0080] By arranging the mounted portion of the blower and the first thick portion and the second thick portion in contact with each other, it is possible to suppress the rattling of the mounted portion.

[0081] The fan may include a convex portion that protrudes from the mounted portion toward the fan mounting portion and is in contact with the fan mounting portion.

[0082] Since the blower has a convex portion in contact with the blower mounting portion, the first thick wall portion, the second thick wall portion, and the convex portion can further suppress the shaking of the mounted portion.

[0083] The fan mounting portion may be arranged on one side in the left-right direction relative to the left-right center of the pressure-receiving member.

[0084] By setting the fan installation part on one side in the left-right direction relative to the left-right center of the pressure-bearing member, the fan can be arranged on one side in the left-right direction relative to the left-right center of the pressure-bearing member, thereby ensuring space for installing a component different from the fan on the other side.

[0085] The pressure receiving member may include a mesh portion in a mesh shape, the blower mounting portion may be provided inside one mesh of the mesh portion so as to block the mesh, and the thick wall portion may be a net portion of the mesh portion.

[0086] Since the pressure-bearing member has a mesh portion for installing the fan installation portion, the fan installation portion can be installed in the pressure-bearing member, and the cushioning property of the pressure-bearing member can be improved by the mesh portion.

[0087] The pressure receiving member may include a frame portion provided so as to surround the mesh portion, and the blower mounting portion may be provided in contact with the frame portion.

[0088] By providing the fan mounting portion in contact with the frame portion, the strength of the fan mounting portion is further improved, thereby further improving the mounting strength of the fan.

[0089] The air blower may be configured to include the engaging portion.

[0090] Since the blower has an engaging portion, the number of parts can be reduced.

[0091] In Japanese Patent Laid-Open No. 2018-161912, a vehicle seat is disclosed, which includes a pressure-bearing member in a seat frame (a frame member in the document) to support a seated person, and the pressure-bearing member has a bridging wire (wire material) inserted into a plate-shaped resin member. Compared with a pressure-bearing member including a metal plate, this pressure-bearing member can have moderate flexibility, and the pressure-bearing member is reinforced by the bridging wire material, etc., so it can have moderate rigidity.

[0092] In recent years, there has been a growing demand for further thinning and weight reduction of vehicle seats. Furthermore, in order to provide cushioning properties not only to the cushion member but also to the pressure-receiving member, soft elastomer resins have been increasingly used for the pressure-receiving member.

[0093] However, when a pressure-receiving member is formed of a soft elastomeric resin, the pressure-receiving member may bend in the acceleration and deceleration direction, such as the front-rear direction of a vehicle seat, due to the acceleration and deceleration behavior of the vehicle. Suppressing such deflection is a problem.

[0094] Therefore, the present disclosure provides a vehicle seat including a pressure receiving member capable of suppressing deflection in a predetermined direction.

[0095] The vehicle seat disclosed in the present invention comprises: a seat frame as a frame; and a pressure-receiving member mounted on the seat frame and supporting a seated person. The pressure-receiving member has a plurality of linear portions formed of an elastic material capable of elastic deformation and forming a mesh-shaped support surface, the plurality of linear portions comprising: a first arc portion formed in an arc shape; and a second arc portion intersecting the first arc portion and formed in an arc shape.

[0096] By providing the first arc portion and the second arc portion formed in an arc shape, the pressure-bearing member can resist the load received from, for example, the direction opposite to the convex direction of the arc, and the deflection of the pressure-bearing member can be suppressed. In addition, by the first arc portion and the second arc portion intersecting, the vicinity of the intersection of the first arc portion and the second arc portion can also resist the load received from multiple directions, thereby becoming a pressure-bearing member capable of suppressing deflection in a specified direction.

[0097] In the above configuration, the plurality of linear portions may include a linear portion extending linearly in the seat front-rear direction or the seat up-down direction.

[0098] By providing the straight portion extending in the front-rear direction or the up-down direction of the vehicle seat, it is possible to reduce the extension (bending) of the pressure receiving member in the front-rear direction or the up-down direction of the seat when the seat occupant is seated.

[0099] That is, when the pressure receiving member is provided on the seat cushion, the extension in the front-rear direction of the vehicle seat is reduced, and when the pressure receiving member is provided on the seat back, the extension in the up-down direction of the vehicle seat is reduced.

[0100] Furthermore, in the above configuration, the straight line portion may intersect the first arc portion.

[0101] The straight portion of the linear portion intersects with the first arc portion, and thus the extension (deflection) of the pressure-receiving member can be more efficiently reduced when the seat occupant sits down.

[0102] Furthermore, in the above configuration, the straight line portion may intersect the second arc portion.

[0103] The straight portion of the linear portion intersects with the second arc portion, and thus the extension (deflection) of the pressure-receiving member can be more efficiently reduced when the seat occupant sits down.

[0104] In the above configuration, a first center point of the arc forming the first arc portion and a second center point of the arc forming the second arc portion may be located outside a region occupied by the pressure receiving member.

[0105] By arranging the first center point of the first arc portion and the second center point of the second arc portion outside the region of the pressure-bearing member, the curvature of the arc can be increased compared to the case where they are arranged within the region. That is, by setting the first arc portion and the second arc portion to a fan-shaped, gentle arc shape, the deflection of the pressure-bearing member can be further suppressed.

[0106] In addition, in the structure, the multiple linear portions may also have a third arc portion, which intersects with the first arc portion and has a third center point different from the second center point of the arc forming the second arc portion, and is formed in an arc shape, and the third arc portion intersects with the straight line portion.

[0107] By including the third arc portion having a third center point different from the second center point of the second arc portion, the directional increase of the load can be counteracted, and the deflection can be further suppressed. In addition, by the third arc portion intersecting with the straight portion, the extension (deflection) of the pressure-receiving member can be more efficiently reduced when the seated person sits down.

[0108] In the above structure, the pressure receiving member may include: a pressure sensor for detecting a seated state of the seated person; and a transverse wire extending in a seat width direction, wherein the transverse wire is disposed near the pressure sensor.

[0109] By arranging the transverse wire near the pressure sensor, it is possible to prevent the pressure sensor from functioning normally when the seat is seated due to excessive bending of the pressure-receiving member near the pressure sensor.

[0110] In the above structure, the pressure receiving member may include a longitudinal wire member that is orthogonal to the transverse wire member and extends in the front-rear direction or the up-down direction of the seat.

[0111] Since the pressure receiving member has the longitudinal wire extending in the front-rear direction or the up-down direction of the vehicle seat, the elongation (deflection) of the seat in the front-rear direction or the up-down direction when the seat occupant sits can be reduced.

[0112] Furthermore, in the above configuration, the pressure sensor may be disposed in the vicinity of an intersection of the transverse wire and the longitudinal wire.

[0113] By arranging the pressure sensor near the intersection of the horizontal wire and the vertical wire, the extension of the pressure-receiving member can be suppressed, thereby reducing malfunction of the pressure sensor when the seat is seated.

[0114] In addition, the structure may also include a duct that sends air from the blower to the seated person side, and the pressure-bearing member has: a transverse wire that extends along the width direction of the seat; and a longitudinal wire that is orthogonal to the transverse wire and extends in the front-to-back direction or the up-down direction, and a through hole for the duct to be inserted is formed in the pressure-bearing member near the intersection of the transverse wire and the longitudinal wire.

[0115] By forming a through hole for the duct to be inserted in the pressure-bearing member, the air supply port of the duct can be arranged on the seated person side. In addition, by forming a through hole near the intersection of the horizontal wire and the vertical wire, the periphery of the through hole can be strengthened. BRIEF DESCRIPTION OF THE DRAWINGS

[0116] [ Figure 1 ] is a three-dimensional view of the vehicle seat of the first embodiment.

[0117] [ Figure 2 ] is a three-dimensional diagram of the seat frame.

[0118] [ Figure 3 ] is a three-dimensional view of the first pressure-bearing member.

[0119] [ Figure 4 ] is a view of the first pressure-bearing member as viewed from above.

[0120] [ Figure 5 ] is a view of the first pressure-bearing member viewed from the left.

[0121] [ Figure 6 ] is a view of the seat cushion frame, the first pressure-bearing member and the side frame cover as viewed from above.

[0122] [ Figure 7 ] is a three-dimensional diagram of the air blower.

[0123] [ Figure 8 ] is a cross-sectional view showing the installation structure of the air blower.

[0124] [ Fig. 9 ] (a) is a view of the first pressure-bearing component, the air blower, the pipe, the ECU and the sensor as viewed from above, and (b) is a view of the first pressure-bearing component, the air blower, the pipe, the ECU and the sensor as viewed from below.

[0125] [ Fig.10 ] is a cross-sectional view of a seat cushion.

[0126] [ Fig.11 ] (a) is a cross-sectional view showing the installation structure of the blower of a modified example of the first embodiment, and (b) is a cross-sectional view showing the installation structure of the blower of a modified example of the first embodiment.

[0127] [ Fig.12 ] is a view showing a seat cushion frame, a first pressure receiving member and a side frame cover of a vehicle seat according to a second embodiment as viewed from above.

[0128] [ Fig.13 ] (a) is a view of the first pressure-bearing component, the air blower, the pipe, the ECU and the sensor as viewed from above, and (b) is a view of the first pressure-bearing component, the air blower, the pipe, the ECU and the sensor as viewed from below.

[0129] [ Fig.14 ] (a) is a view of the first pressure-receiving member of the vehicle seat of the first modified example as viewed from below, and (b) is an AA sectional view of (a).

[0130] [ Fig.15 ] (a) is a view showing a first pressure-receiving member of a vehicle seat according to a second modified example as viewed from below, and (b) is a BB sectional view of (a).

[0131] [ Fig.16 ] is a view showing a seat cushion of a vehicle seat according to a third modified example as viewed from above.

[0132] [ Fig.17 ] (a) is a view of a seat cushion of a vehicle seat according to a fourth modified example as viewed from above, and (b) is a view of a seat cushion of a vehicle seat according to a fifth modified example as viewed from above.

[0133] [ Fig.18 ] (a) is a view of a seat cushion of a vehicle seat according to a sixth modification example as viewed from above, and (b) is a view of a seat cushion of a vehicle seat according to a seventh modification example as viewed from above.

[0134] [ Fig.19 ] is a diagram showing a seat cushion of a vehicle seat according to an eighth modified example as viewed from above.

[0135] [ Fig. 20 ] (a) is a view of a seat cushion of a vehicle seat according to a ninth variant as viewed from above, and (b) is a stereoscopic view showing an ECU, a moving mechanism and a supporting member.

[0136] [ Fig.21 ] is a diagram showing a seat cushion of a vehicle seat according to a tenth variation as viewed from above.

[0137] [ Fig. 22 ] is a three-dimensional view showing the appearance of the vehicle seat of the present invention when viewed from an oblique front.

[0138] [ Fig.23 ] is a three-dimensional view showing a seat frame of a vehicle seat.

[0139] [ Fig.24 ] is a top view of the compression member installed on the seat cushion frame.

[0140] [ Fig.25 ] is a top view showing the linear portion of the pressure-bearing member.

[0141] [ Fig.26 ] is an explanatory diagram showing the concept of the linear portion.

[0142] [ Fig. 27 ] is along Fig.24 Cross-sectional view along line VI-VI.

[0143] [ Fig.28 ] is along Fig.24 Cross-sectional view along line VII-VII.

[0144] [ Fig.29 ] is a diagram showing another example of a wire material provided in a pressure-bearing member.

[0145] [ Fig.30 ] is a diagram showing another example of a wire material provided in a pressure-bearing member. DETAILED DESCRIPTION

[0146] Next, the first embodiment will be described. In addition, in this specification, front and back, left and right, and up and down correspond to the front and back, left and right, and up and down when viewed from a person sitting on the seat (seat occupant).

[0147] like Figure 1 As shown, the vehicle seat of the embodiment is configured as a vehicle seat S mounted on a car as a vehicle. The vehicle seat S includes a seat cushion S1, a seat back S2, and a headrest S3.

[0148] In addition, the vehicle seat S includes a moving mechanism SR that can move the seat cushion S1 relative to the vehicle floor. The moving mechanism SR includes left and right lower rails R1 fixed to the vehicle floor, and left and right upper rails R2 that can be engaged with the lower rails R1 to slide forward and backward. The seat cushion S1 is fixed to the left and right upper rails R2. As a result, the seat cushion S1 (vehicle seat S) can slide forward and backward relative to the vehicle floor.

[0149] like Figure 1 and Figure 2 As shown, the vehicle seat S includes: a seat frame F; a pad P covering the seat frame F; and a skin SK covering the seat frame F and the pad P.

[0150] The seat frame F includes a seat cushion frame F1 which is a frame of the seat cushion S1 and a seat back frame F2 which is a frame of the seat back S2 .

[0151] The pad P includes, for example, a foamed resin such as urethane foam, and includes: a seat cushion pad P1 covering the seat cushion frame F1; and a seat back pad P2 covering the seat back frame F2. The seat cushion pad P1 includes: a first central portion PC1; and left and right first side portions PS1, which are provided on the left and right of the first central portion PC1 and extend upward from the first central portion PC1. In addition, the seat back pad P2 includes: a second central portion PC2; and left and right second side portions PS2, which are provided on the left and right of the second central portion PC2 and extend forward from the second central portion PC2.

[0152] The skin SK includes, for example, leather, cloth, etc., and includes a seat cushion skin SK1 covering a seat cushion frame F1 and a seat cushion pad P1 , and a seat back skin SK2 covering a seat back frame F2 and a seat back pad P2 .

[0153] like Figure 2 As shown, the seat cushion S1 includes a seat cushion frame F1, a first pressure-receiving member 30 as a pressure-receiving member, and left and right side frame covers 40. The seat cushion S1 is formed by covering the seat cushion frame F1, the first pressure-receiving member 30, and the side frame covers 40 with a seat cushion pad P1 and a seat cushion skin SK1. The seat cushion pad P1 covers the seat cushion frame F1, the first pressure-receiving member 30, and the side frame covers 40.

[0154] The seat cushion frame F1 includes a first side frame 11 as left and right side frames, a front frame 12 and a rear frame 13 as a pair of connecting frames, and a disk-shaped frame 14 .

[0155] The first side frame 11 is made of a metal plate and is formed long in the front-rear direction which is perpendicular to the left-right direction. In the embodiment, the front-rear direction corresponds to the “longitudinal direction of the side frame.” The left and right first side frames 11 are arranged apart in the left-right direction.

[0156] The front frame 12 and the rear frame 13 connect the left and right first side frames 11. Specifically, the front frame 12 includes a metal pipe and connects the front portions of the left and right first side frames 11. The rear frame 13 includes a metal pipe and connects the rear portions of the left and right first side frames 11. The front frame 12 and the rear frame 13 are arranged separately in the front-rear direction.

[0157] The disk-shaped frame 14 includes a metal plate, and connects the front portions of the left and right first side frames 11 to each other.

[0158] The seat back S2 includes a seat back frame F2 and a second pressure receiving member 50. The seat back S2 is formed by covering the seat back frame F2 and the second pressure receiving member 50 with a seat back pad P2 and a seat back cover SK2. The seat back pad P2 covers the seat back frame F2 and the second pressure receiving member 50.

[0159] The seat back frame F2 includes left and right lower side frames 22 , a tubular frame 23 , a lower frame 24 , and a bridge frame 25 .

[0160] The lower side frame 22 is made of a metal plate and is formed long in the vertical direction perpendicular to the horizontal direction. The tubular frame 23 is made of a metal pipe and has left and right upper side frames 23A and an upper frame 23B extending left and right in a manner that connects the upper ends of the upper side frames 23A.

[0161] The upper side frame 23A is connected to the upper part of the lower side frame 22, and together with the lower side frame 22, constitutes the left and right frames of the seat back frame F2, namely the second side frame 21. The left and right second side frames 21 are formed long in the vertical direction and are separated in the left and right direction. A pair of brackets 26 for holding the headrest S3 are fixed to the upper frame 23B.

[0162] The lower frame 24 and the bridge frame 25 connect the left and right second side frames 21. Specifically, the lower frame 24 includes a metal pipe or a metal plate, and connects the lower portions of the left and right second side frames 21. The bridge frame 25 includes a metal plate, and connects the upper portions of the left and right second side frames 21. The bridge frame 25 is arranged below the upper frame 23B. The lower frame 24 and the bridge frame 25 are arranged separately in the up-down direction.

[0163] The second pressure-receiving member 50 is a plate-shaped member that supports a seated person, and is disposed between the left and right second side frames 21. The second pressure-receiving member 50 includes a resin member 51 and a mounting wire 52.

[0164] The mounting wire 52 is a metal wire for reinforcing the resin member 51, and a part of it is covered by the resin member 31. The mounting wire 52 is laid across the lower frame 24 and the bridge frame 25.

[0165] The resin member 51 is a portion that supports the seated person from behind, and covers a portion of the mounting wire 52. The resin member 51 is in a plate shape. The resin member 51 has a central support portion 51A and left and right side support portions 51B. The side support portions 51B extend obliquely forward from the left and right ends of the central support portion 51A so as to be located further forward as they go outward in the left-right direction.

[0166] The second pressure receiving member 50 is mounted on the seat back frame F2 by fixing the lower end of the mounting wire 52 to the lower frame 24 and inserting the upper end of the mounting wire 52 into a hole formed in the bridge frame 25 , for example.

[0167] The first pressure-receiving member 30 is a plate-shaped member that supports the seated person and is disposed between the left and right first side frames 11. Figure 3 As shown, the first pressure-receiving member 30 includes a resin member 31 as an elastic member, and longitudinal wires 32 and transverse wires 33 as wires. In the embodiment, the longitudinal wires 32 correspond to "first reinforcing wires" and the transverse wires 33 correspond to "second reinforcing wires".

[0168] The vertical wires 32 and the horizontal wires 33 are metal wires for reinforcing the resin member 31 , and are covered by the resin member 31 .

[0169] like Figure 4 As shown, when viewed from above, the longitudinal wire 32 extends in the front-to-back direction. In the embodiment, the upper side corresponds to the "seat occupant side". In addition, the lower side corresponds to the "side opposite to the seat occupant side". The longitudinal wire 32 is laid across the front frame 12 and the rear frame 13 via the resin member 31. In the embodiment, the front-to-back direction corresponds to the "direction in which the first reinforcing wire is laid".

[0170] The longitudinal wires 32 include a central wire 32A, a first side wire 32B, and a second side wire 32C.

[0171] The center wire 32A is arranged at the left-right center of the first pressure receiving member 30. The center wire 32A is arranged between the first side wire 32B and the second side wire 32C.

[0172] The first side wire 32B is arranged on the right side, which is one side of the center wire 32A in the left-right direction. The center wire 32A and the first side wire 32B are arranged separately in the left-right direction. In the embodiment, the left-right direction corresponds to "a direction orthogonal to the direction in which the first reinforcing wire is laid".

[0173] The second side wire 32C is arranged on the other side, that is, on the left side, in the left-right direction relative to the center wire 32A. The center wire 32A and the second side wire 32C are arranged to be separated in the left-right direction.

[0174] In the embodiment, the center wire 32A, the first side wire 32B and the second side wire 32C are of the same shape. Figure 5 As shown, the center wire 32A, the first side wire 32B and the second side wire 32C respectively have: a wire body 321, a front hook 322, and a rear hook 323. The wire body 321 has: a first extension portion 321A, a second extension portion 321B, a third extension portion 321C, a first bent portion 321D, and a second bent portion 321E as a bent portion.

[0175] The front hook 322 is a portion that engages with the front frame 12 via the resin member 31. The front hook 322 is bent in an arc shape from the front end of the wire body 321 (the first extension portion 321A) and extends forward.

[0176] The rear hook 323 is a portion engaged with the rear frame 13 via the resin member 31. The rear hook 323 extends obliquely upward and rearward from the rear end of the wire body 321 (third extension portion 321C), and is bent in an arc shape at the rear end.

[0177] The first extension portion 321A extends approximately forward and backward. Specifically, the first extension portion 321A extends obliquely rearward and downward. The second extension portion 321B extends obliquely rearward and upward from the rear end of the first extension portion 321A. The first curved portion 321D is formed between the first extension portion 321A and the second extension portion 321B. The third extension portion 321C extends obliquely rearward and downward from the rear end of the second extension portion 321B. The third extension portion 321C extends approximately parallel to the first extension portion 321A. The second curved portion 321E is formed between the second extension portion 321B and the third extension portion 321C.

[0178] like Figure 4 As shown, when viewed from above, the transverse wire 33 extends in a direction orthogonal to the longitudinal wire 32. Specifically, when viewed from above, the transverse wire 33 extends in the left-right direction. The second reinforcing wire is configured to extend in the first extension portion 321A (refer to Figure 5) and is laid over the first side wire 32B, the center wire 32A, and the second side wire 32C. In addition, the lateral wire 33 passes through a portion of the edge of the through hole 351 and the through hole 352 provided in the resin member 31. Specifically, the lateral wire 33 passes through the front edge of the through hole 351 and the through hole 352.

[0179] The resin member 31 has a plate shape and includes a main body 310 , a front hooking and fixing portion 320 , and a rear hooking and fixing portion 330 .

[0180] The front hook fixing portion 320 is a portion hooked on the front frame 12, covering the front hook 322 of the longitudinal wire 32 (see Figure 5 ).

[0181] The rear hook fixing portion 330 is a portion hooked on the rear frame 13 and covers the rear hook 323 of the longitudinal wire 32 (see Figure 5 ).

[0182] The first pressure receiving member 30 is attached to the seat cushion frame F1 by hooking the front hook fixing portion 320 on the front frame 12 and hooking the rear hook fixing portion 330 on the rear frame 13 .

[0183] The main body 310 is a part that supports the seated person from below and covers the wire body 321 of the longitudinal wire 32 (see Figure 5 ), and the horizontal wire 33. The main body 310 has: a central support portion 311, and left and right side support portions 312. The side support portions 312 extend obliquely upward from the left and right ends of the central support portion 311 in a manner that they are located higher as they go outward in the left-right direction (see also Figure 3 ).

[0184] The resin member 31 includes a sensor mounting portion 340 , a through hole 351 , a through hole 352 , a mesh portion 360 , a frame portion 370 , and a mounting portion 380 .

[0185] The sensor mounting portion 340 is provided for the sensor 140 (see Figure 6 The sensor mounting portion 340 is disposed at the center of the first pressure-receiving member 30 in the left-right direction.

[0186] The through hole 351 and the through hole 352 are holes penetrating in the up-down direction and are provided on the left and right of the sensor mounting portion 340. Specifically, the through hole 351 is provided on the right side of the sensor mounting portion 340, and the through hole 352 is provided on the left side of the sensor mounting portion 340.

[0187] The mesh portion 360 is a mesh-shaped portion, and is provided on the central support portion 311. The mesh portion 360 includes a first mesh portion 360A provided on the right relative to the left-right center of the first pressure-receiving member 30, and a second mesh portion 360B provided on the left relative to the left-right center of the first pressure-receiving member 30. The first mesh portion 360A is provided behind the through hole 351, and the second mesh portion 360B is provided behind the through hole 352.

[0188] The frame portion 370 is a frame-shaped portion provided so as to surround the mesh portion 360. The frame portion 370 includes a first frame portion 371, a second frame portion 372, a third frame portion 373, a fourth frame portion 374, and a fifth frame portion 375.

[0189] The first frame portion 371 is a portion located between the first mesh portion 360A and the second mesh portion 360B, and extends in the front-rear direction. The first frame portion 371 covers the wire body 321 of the center wire 32A (see Figure 5 ).

[0190] The second frame portion 372 is a portion located to the right of the first mesh portion 360A and extends in the front-rear direction. The second frame portion 372 covers the wire body 321 of the first side wire 32B.

[0191] The third frame portion 373 is a portion located to the left of the second mesh portion 360B and extends in the front-rear direction. The third frame portion 373 covers the wire body 321 of the second side wire 32C.

[0192] The fourth frame portion 374 is a portion located in front of the mesh portion 360 (360A, 360B). The fourth frame portion 374 extends in the left-right direction and connects the front ends of the first frame portion 371, the second frame portion 372, and the third frame portion 373. The fourth frame portion 374 forms the rear edge of the through holes 351 and 352.

[0193] The fifth frame portion 375 is a portion located behind the mesh portion 360 (360A, 360B) and extends in the left-right direction to connect the rear ends of the first frame portion 371, the second frame portion 372, and the third frame portion 373.

[0194] The mounting portion 380 is used to mount the blower 110 (see FIG. 1 ) on the first pressure-bearing member 30 . Figure 7 ) is a part of a different component. The mounting portion 380 is in the shape of a bottomed cylinder with an upper opening (see Figure 3 ), the bottom wall having a plate shape has an installation hole 381 penetrating in the up-down direction. Components different from the blower 110 are, for example, a harness, a connector, etc. As an example, the harness can be installed on the installation portion 380 via a harness clamp or the like.

[0195] The mounting portion 380 includes a first mounting portion 380A, a second mounting portion 380B, and a third mounting portion 380C.

[0196] The first mounting portion 380A and the second mounting portion 380B are provided on the central support portion 311. Specifically, the first mounting portion 380A is provided at the front end of the central support portion 311, and the second mounting portion 380B is provided at the center of the central support portion 311.

[0197] Three first mounting parts 380A are arranged in the left-right direction at positions in front of the through holes 351 and 352 in the front end of the central support part 311. One second mounting part 380B is provided at positions behind the through holes 351 and 352. The second mounting part 380B is provided in a manner of blocking one mesh of the mesh part 360 on the inner side thereof.

[0198] The third mounting parts 380C are provided on the left and right side support parts 312. Four third mounting parts 380C are arranged along the front-rear direction on each side support part 312. The third mounting part 380C located at the frontmost part has two mounting holes 381.

[0199] The resin member 31 has elasticity. The resin member 31 (elastic member) includes a material having elasticity. Specifically, the resin member 31 includes a resin having elasticity. In the embodiment, the resin member 31 includes an elastomer. As an example, the elastomer is a polyurethane-based thermoplastic elastomer, a polyethylene-based thermoplastic elastomer, a polystyrene-based thermoplastic elastomer, a polyolefin-based thermoplastic elastomer, etc. The first pressure-bearing member 30 is integrally formed by insert molding, etc., in a state where the resin member 31 covers the longitudinal wires 32 and the transverse wires 33.

[0200] like Figure 6 As shown, the side frame cover 40 is a member covering the rear end portion of the first side frame 11. The side frame cover 40 contains resin. The side frame cover 40 integrally includes an upper cover 41 and a side cover 42. In the embodiment, the rear end portion of the first side frame 11 corresponds to "one end portion in the long side direction of the side frame", and the front end portion of the first side frame 11 corresponds to "the other end portion in the long side direction of the side frame".

[0201] The upper cover 41 is a portion that covers the upper side of the rear end portion of the first side frame 11 .

[0202] The side cover 42 is a portion covering the left-right inner side of the rear end of the first side frame 11, and extends downward from the left-right inner end of the upper cover 41. Specifically, the side cover 42 extends obliquely downward from the left-right outer side so as to be located further downward as it goes inward (see also Figure 2 ).

[0203] The vehicle seat S further includes: an air blower 110, a duct 120, an electronic control unit (ECU) 130 as a control device, and a sensor 140. As an example, the air blower 110 is a sirocco fan. The ECU 130 is an electronic control unit for controlling the air blower 110, including: a central processing unit (CPU), a random access memory (RAM), a read only memory (ROM), an input and output circuit, etc. The sensor 140 is a sensor for detecting a seated person sitting on the vehicle seat S. As an example, the sensor 140 is a pressure sensor.

[0204] The blower 110 is arranged below the first pressure-receiving member 30. In addition, the blower 110 is mounted on the first pressure-receiving member 30. In other words, the blower 110 is mounted on the lower surface of the first pressure-receiving member 30, which is the surface on the side opposite to the seated person side. The blower 110 is mounted on the resin member 31 of the first pressure-receiving member 30. In the embodiment, the blower 110 is directly mounted on the resin member 31 without passing through a bracket or the like. The blower 110 is supported by the seat frame F via the resin member 31 (first pressure-receiving member 30). In other words, the blower 110 is not directly supported by the seat frame F.

[0205] like Figure 7 As shown, the blower 110 includes an impeller 111, a motor for rotating the impeller 111, a housing 113 for housing the impeller 111 and the motor, and two mounted portions 114. The mounted portion 114 is a plate-shaped portion protruding from the housing 113 and has a mounting member 150 (see Figure 8 )'s engaging portion 152 engages with the second through hole 115.

[0206] In the embodiment, the mounted portion 114 includes: a first mounted portion 114A and a second mounted portion 114B. The first mounted portion 114A extends from the housing 113 in a direction opposite to the blow-out port 113A of the housing 113. The second mounted portion 114B extends from the housing 113 in a direction different from the first mounted portion 114A. Specifically, the first mounted portion 114A extends rearward from the housing 113, and the second mounted portion 114B extends leftward (to the center of the left-right direction of the first pressure-bearing member 30) from the housing 113 (see also Fig. 9 (b)).

[0207] like Figure 8As shown, the vehicle seat S further includes a mounting member 150. The mounting member 150 is a member for mounting the blower 110 on the first pressure receiving member 30. The mounting member 150 is, for example, a clip, and has a head 151 and an engaging portion 152.

[0208] The first pressure-bearing member 30 has a plate-shaped fan mounting portion 390. The fan mounting portion 390 is a portion for mounting the fan 110 on the first pressure-bearing member 30. The fan mounting portion 390 has a first through hole 391 that penetrates in the up-down direction. The first through hole 391 is a hole for mounting the fan 110 on the first pressure-bearing member 30 and is engaged with the engaging portion 152 of the mounting member 150.

[0209] like Figure 4 As shown, the blower mounting portion 390 is provided on the right side relative to the left-right center of the first pressure-bearing member 30. Specifically, the blower mounting portion 390 is provided to block the mesh of the first mesh portion 360A located on the right side relative to the left-right center of the first pressure-bearing member 30.

[0210] The blower installation part 390 includes: a first blower installation part 390A, and a second blower installation part 390B. The first blower installation part 390A is provided at the right end (the end away from the left-right center of the first pressure-bearing member 30) of the rear end of the first mesh part 360A. The second blower installation part 390B is provided at the rear of the left end (the end close to the left-right center of the first pressure-bearing member 30) of the first mesh part 360A. The second blower installation part 390B is provided further forward than the first blower installation part 390A.

[0211] The blower mounting portion 390 is disposed in contact with the frame portion 370. Specifically, the rear edge of the first blower mounting portion 390A is disposed in contact with the fifth frame portion 375 of the frame portion 370. The left edge (the end close to the center in the left-right direction of the first pressure-bearing member 30) of the second blower mounting portion 390B is disposed in contact with the first frame portion 371 of the frame portion 370. The first frame portion 371 protrudes upward more than the second blower mounting portion 390B. In addition, the first frame portion 371 protrudes downward more than the second blower mounting portion 390B. The fifth frame portion 375 protrudes upward more than the first blower mounting portion 390A. In addition, the fifth frame portion 375 protrudes downward more than the first blower mounting portion 390A.

[0212] A thick-walled portion 361 is provided around the blower mounting portion 390. In the first embodiment, the thick-walled portion 361 is a mesh portion of the first mesh portion 360A. The thick-walled portion 361 is provided in contact with the blower mounting portion 390. Specifically, the front edge of the thick-walled portion 361 and the first blower mounting portion 390A are provided in contact with the left and right edges. In addition, the front and rear edges of the thick-walled portion 361 and the second blower mounting portion 390B are provided in contact with the right edge. The thick-walled portion 361 protrudes further upward than the blower mounting portion 390. In addition, the thick-walled portion 361 protrudes further downward than the blower mounting portion 390. The thick-walled portion 361 includes thick-walled portions 361A to 361F.

[0213] The thick wall portion 361A is connected to the front edge of the first blower mounting portion 390A, the thick wall portion 361B is connected to the right edge of the first blower mounting portion 390A, and the thick wall portion 361C is connected to the left edge of the first blower mounting portion 390A. The first blower mounting portion 390A is located between the thick wall portion 361B and the thick wall portion 361C. The thick wall portion 361A, the thick wall portion 361B, and the thick wall portion 361C protrude upward more than the first blower mounting portion 390A. In addition, the thick wall portion 361A, the thick wall portion 361B, and the thick wall portion 361C protrude downward more than the first blower mounting portion 390A.

[0214] The thick wall portion 361D is connected to the front edge of the second blower mounting portion 390B, the thick wall portion 361E is connected to the rear edge of the second blower mounting portion 390B, and the thick wall portion 361F is connected to the right edge of the second blower mounting portion 390B. The second blower mounting portion 390B is located between the thick wall portion 361D and the thick wall portion 361E. The thick wall portion 361D, the thick wall portion 361E, and the thick wall portion 361F protrude upward more than the second blower mounting portion 390B. In addition, the thick wall portion 361D, the thick wall portion 361E, and the thick wall portion 361F protrude downward more than the second blower mounting portion 390B.

[0215] like Figure 8 As shown, the engaging portion 152 of the mounting member 150 engages from top to bottom with the first through hole 391 of the fan mounting portion 390 of the first pressure-bearing member 30 and the second through hole 115 of the mounted portion 114 of the fan 110. The top end of the engaging portion 152 protrudes further downward than the fan mounting portion 390.

[0216] Thick portion 361 (361A to 361F) protrudes upward from mounting member 150. Specifically, thick portion 361 protrudes upward from head portion 151 of mounting member 150. In other words, head portion 151 of mounting member 150 does not protrude upward from thick portion 361 (see dashed-dotted line).

[0217] The first mounted portion 114A of the blower 110 is arranged at the lower side relative to the first blower mounting portion 390A and in contact with the thick wall portion 361B and the thick wall portion 361C. Here, one of the thick wall portion 361B and the thick wall portion 361C corresponds to the "first thick wall portion", and the other of the thick wall portion 361B and the thick wall portion 361C corresponds to the "second thick wall portion".

[0218] The second mounted portion 114B of the blower 110 is arranged at the lower side relative to the second blower mounting portion 390B and in contact with the thick wall portion 361D and the thick wall portion 361E. Here, one of the thick wall portion 361D and the thick wall portion 361E corresponds to the "first thick wall portion", and the other of the thick wall portion 361D and the thick wall portion 361E corresponds to the "second thick wall portion".

[0219] like Fig. 9 As shown in (a) and (b), when viewed from above, the blower 110 is arranged at a position that does not overlap with the mounting portion 380. Specifically, when viewed from above, the blower 110 is arranged at a position that does not overlap with any of the first mounting portion 380A, the second mounting portion 380B, and the third mounting portion 380C.

[0220] When viewed from above, the air blower 110 is arranged at a position that does not overlap with the longitudinal wire 32. Specifically, when viewed from above, the air blower 110 is arranged at a position that does not overlap with any of the center wire 32A, the first side wire 32B, and the second side wire 32C. In addition, when viewed from above, the air blower 110 is arranged at a position that does not overlap with the transverse wire 33.

[0221] The blower 110 is arranged on the right side relative to the center wire 32A. Specifically, when viewed from above, the blower 110 is arranged between the center wire 32A and the first side wire 32B. In the embodiment, one of the center wire 32A and the first side wire 32B is equivalent to the "first wire", and the other of the center wire 32A and the first side wire 32B is equivalent to the "second wire".

[0222] like Figure 5 As shown, the position of the blower 110 in the front-to-back direction overlaps with the first curved portion 321D and the second curved portion 321E of the longitudinal wire 32. In addition, when viewed from the left-right direction, the blower 110 is arranged at a position overlapping with both the first curved portion 321D and the second curved portion 321E of the longitudinal wire 32. The blower 110 is arranged between the curved portion 321D and the curved portion 321E of the center wire 32A and the curved portion 321D and the curved portion 321E of the first side wire 32B.

[0223] like Figure 6As shown, the position of the blower 110 in the front-rear direction overlaps with the side frame cover 40. Specifically, when viewed from above, the blower 110 is arranged further rearward than the front end of the side frame cover 40 and further forward than the rear end of the side frame cover 40. In the first embodiment, when viewed from above, the blower 110 is arranged between the left and right side frame covers 40.

[0224] like Fig.10 As shown, the duct 120 is a tubular member that connects the blower 110 to the ventilation path 60 provided in the seat cushion pad P1. The seat cushion pad P1 has the ventilation path 60 inside. As an example, the ventilation path 60 includes: a first ventilation path 61, a second ventilation path 62, and a plurality of third ventilation paths 63. The first ventilation path 61 is provided in such a manner that the second ventilation path 62 communicates with the space below the seat cushion pad P1. The third ventilation path 63 is provided in such a manner that the second ventilation path 62 communicates with the space above the seat cushion pad P1.

[0225] One end portion, namely, a first end portion 121, of the duct 120 is connected to the blowout port 113A of the blower 110, and the other end portion, namely, a second end portion 122, is connected to the first air path 61 of the air path 60. The seat cushion S1 is configured such that the air sent from the blower 110 passes through the duct 120 and the air path 60 and is blown toward the seated person from the upper surface of the seat cushion pad P1.

[0226] The duct 120 has an L shape when viewed from the left and right directions, and extends forward from the blower 110 , then bends and extends upward. The duct 120 passes through the through hole 351 from the lower side of the first pressure-receiving member 30 and extends to the upper side of the first pressure-receiving member 30 .

[0227] like Fig. 9 As shown in (a) and (b), when viewed from above, the duct 120 is arranged at a position that does not overlap with the mounting portion 380. Specifically, when viewed from above, the duct 120 is arranged at a position that does not overlap with any of the first mounting portion 380A, the second mounting portion 380B, and the third mounting portion 380C.

[0228] The duct 120 and the ventilation path 60 (see Fig.10 ), that is, the second end 122 of the duct 120 overlaps with the sensor 140 in the front-rear direction. Specifically, when viewed from above, the second end 122 of the duct 120 and the sensor 140 are arranged side by side in the left-right direction. When viewed from above, the second end 122 of the duct 120 is arranged to the right of the sensor 140.

[0229] In addition, the second end 122 of the duct 120 is arranged on the right side relative to the left-right center of the first pressure-bearing member 30. In addition, when viewed from above, the second end 122 of the duct 120 is arranged between the horizontal wire 33 and the blower 110. When viewed from above, the second end 122 of the duct 120 is arranged at a position closer to the horizontal wire 33 than the blower 110.

[0230] like Figure 6 As shown, the second end 122 of the duct 120 is located closer to the front end of the first side frame 11 than the side frame cover 40 in the front-rear direction. In other words, the second end 122 of the duct 120 is arranged further forward than the front end of the side frame cover 40 when viewed from above.

[0231] like Fig. 9 As shown in (a) and (b), the ECU 130 is installed on the first pressure-bearing member 30. When viewed from above, the ECU 130 is arranged at a position that does not overlap with the longitudinal wire 32. Specifically, when viewed from above, the ECU 130 is arranged at a position that does not overlap with any of the center wire 32A, the first side wire 32B, and the second side wire 32C. In addition, when viewed from above, the ECU 130 is arranged at a position that does not overlap with the transverse wire 33.

[0232] The ECU 130 is arranged on the left side relative to the center wire 32A. Specifically, when viewed from above, the ECU 130 is arranged between the center wire 32A and the second side wire 32C. The position of the ECU 130 in the front-rear direction overlaps with the blower 110. In other words, the blower 110 and the ECU 130 are arranged side by side in the left-right direction.

[0233] In addition, if Figure 5 As shown, the position of the ECU 130 in the front-rear direction overlaps with the second bent portion 321E of the longitudinal wire 32. In addition, when viewed from the left-right direction, the ECU 130 may also be arranged at a position overlapping with the second bent portion 321E of the longitudinal wire 32. In addition, when viewed from the left-right direction, the ECU 130 may also be arranged at a position overlapping with the first bent portion 321D of the longitudinal wire 32.

[0234] like Fig. 9 As shown in (a) and (b), the sensor 140 is mounted on the seat occupant side surface of the first pressure-receiving member 30, that is, the upper surface. Specifically, the sensor 140 is mounted on the upper surface of the sensor mounting portion 340. The sensor 140 is arranged on the left side relative to the left-right center of the first pressure-receiving member 30. Specifically, the sensor 140 is arranged on the left part of the sensor mounting portion 340 relative to the left-right center of the first pressure-receiving member 30.

[0235] When viewed from above, the sensor 140 is arranged at a position that does not overlap with the blower 110. Both the position of the sensor 140 in the front-rear direction and the position in the left-right direction do not overlap with the blower 110. Specifically, when viewed from above, the sensor 140 is arranged at a position further forward than the blower 110 and further to the left of the blower 110. When viewed from above, the sensor 140 is arranged at a position obliquely forward and left of the blower 110.

[0236] When viewed from above, the sensor 140 is arranged at a position that does not overlap with the duct 120. Specifically, when viewed from above, the sensor 140 is arranged at a position further to the left of the duct 120. Further, when viewed from above, the sensor 140 is arranged to the left of the second end 122 of the duct 120.

[0237] like Figure 6 As shown, the sensor 140 is located closer to the front end of the first side frame 11 than the side frame cover 40 in the front-rear direction. Specifically, the sensor 140 is arranged further forward than the front end of the side frame cover 40 when viewed from above.

[0238] Next, effects of the vehicle seat S according to the first embodiment will be described.

[0239] Since the first pressure-receiving member 30 includes the resin member 31 having elasticity and the blower 110 is mounted on the resin member 31 , vibration during operation of the blower 110 can be suppressed.

[0240] Since the first pressure-receiving member 30 is in a plate shape, the blower 110 can be easily mounted on the first pressure-receiving member 30 .

[0241] Since the resin member 31 to which the blower 110 is attached contains an elastic body, vibrations during operation of the blower 110 can be well suppressed.

[0242] By arranging the blower 110 at a position that does not overlap with the mounting portion 380 when viewed from above, the blower 110 is less likely to become an obstruction when a component other than the blower 110 , such as a wire harness, is mounted on the mounting portion 380 .

[0243] By arranging the duct 120 at a position that does not overlap with the mounting portion 380 when viewed from above, the duct 120 is less likely to become an obstruction when a component other than the blower 110 , such as a wire harness, is mounted on the mounting portion 380 .

[0244] By passing the duct 120 from the lower side of the first pressure-receiving member 30 through the through hole 351 of the first pressure-receiving member 30 and extending upward, the duct 120 can be arranged more compactly than when, for example, the duct is passed through the front, back, left, and right sides of the first pressure-receiving member and extends upward.

[0245] By positioning the second end portion 122 of the duct 120 closer to the front end portion of the first side frame 11 than the side frame cover 40 in the front-rear direction, the second end portion 122 of the duct 120 can be disposed away from the side frame cover 40 .

[0246] By making the position of the blower 110 overlap with the side frame cover 40 in the front-rear direction, the blower 110 can be arranged within the width of the side frame cover 40 in the front-rear direction.

[0247] By directly attaching the air blower 110 to the resin member 31 , the number of parts can be reduced compared to the case where the air blower is attached to the resin member via a bracket or the like.

[0248] By installing the sensor 140 on the upper surface of the first pressure-bearing member 30 and installing the blower 110 on the lower surface of the first pressure-bearing member 30, the sensor 140 and the blower 110 can be compactly configured compared to a case where both the sensor and the blower are installed on the same side of the first pressure-bearing member.

[0249] In addition, when both the sensor and the blower are installed on the same side of the first pressure-bearing member, in order not to hinder the detection of the sensor, the blower needs to be arranged to be away from the sensor to a certain extent, and it is not easy to arrange the sensor and the blower compactly. In the first embodiment, even if the blower 110 is arranged close to the sensor 140, the detection of the sensor 140 will not be hindered. Therefore, the sensor 140 and the blower 110 can be arranged compactly.

[0250] By making the second end portion 122 of the duct 120 overlap with the sensor 140 in the front-rear direction, the sensor 140 and the second end portion 122 of the duct 120 can be compactly arranged in the front-rear direction.

[0251] By arranging the second end 122 of the duct 120 on the right relative to the left-right center of the first pressure-bearing member 30 and arranging the sensor 140 on the left, the first pressure-bearing member 30 can be prevented from being enlarged compared to, for example, a case where the portion of the duct connected to the ventilation path and the sensor are arranged on the same side on the left and right.

[0252] By arranging the sensor 140 at a position not overlapping with the duct 120 when viewed from above, the duct 120 can be shortened. In addition, the duct 120 can be formed into a simpler shape.

[0253] By arranging the sensor 140 at a position that does not overlap with the blower 110 when viewed from above, the vibration of the blower 110 during operation is less likely to affect the detection of the sensor 140 .

[0254] By making the position of the sensor 140 in the left-right direction not overlap with the blower 110 , the sensor 140 can be arranged further away from the blower 110 .

[0255] The sensor 140 can be arranged farther away from the blower 110 by overlapping the side frame cover 40 in the front-rear direction and positioning the sensor 140 closer to the front end of the first side frame 11 than the side frame cover 40 in the front-rear direction.

[0256] By arranging the blower 110 at a position that does not overlap with the longitudinal wire 32 when viewed from above, the blower 110 can be arranged at a position that overlaps with the longitudinal wire 32 in the direction in which the first pressure-bearing member 30 faces the seated person, that is, in the vertical direction. Thus, the first pressure-bearing member 30 and the blower 110 can be compactly arranged in the vertical direction.

[0257] By making the position of the blower 110 in the front-rear direction overlap with the bent portions 321D and 321E of the longitudinal wire 32, the blower 110 can be installed near the bent portions 321D and 321E of the longitudinal wire 32 with high rigidity. Thus, the installation strength of the blower 110 can be improved.

[0258] By making the position of the ECU 130 in the front-rear direction overlap with the second bent portion 321E of the longitudinal wire 32, the ECU 130 can be mounted near the second bent portion 321E of the longitudinal wire 32 having high rigidity. Thus, the mounting strength of the ECU 130 can be improved.

[0259] By arranging the ECU 130 at a position not overlapping the vertical wires 32 when viewed from above, the ECU 130 can be arranged at a position overlapping the vertical wires 32 in the vertical direction. Thus, the first pressure receiving member 30 and the ECU 130 can be arranged compactly in the vertical direction.

[0260] By disposing the blower 110 between the center wire 32A and the first side wire 32B when viewed from above, the blower 110 is installed in the portion reinforced by the center wire 32A and the first side wire 32B between the center wire 32A and the first side wire 32B of the first pressure-bearing member 30. Thus, the installation strength of the blower 110 can be improved.

[0261] By arranging the second end 122 of the duct 120 closer to the transverse wire 33 than the blower 110 when viewed from above, the second end 122 of the duct 120 can be arranged near the portion of the first pressure member 30 reinforced by the transverse wire 33.

[0262] By arranging the blower 110 on the right and the ECU 130 on the left relative to the center wire 32A, it is easier to secure mounting locations for the blower 110 and the ECU 130 than when, for example, the blower and the control device are arranged on the same left or right side.

[0263] By disposing the blower 110 between the center wire 32A and the first side wire 32B when viewed from above, the blower 110 is installed in the portion between the center wire 32A and the first side wire 32B of the first pressure-receiving member 30 reinforced by the center wire 32A and the first side wire 32B. In addition, by disposing the ECU 130 between the center wire 32A and the second side wire 32C when viewed from above, the ECU 130 is installed in the portion between the center wire 32A and the second side wire 32C of the first pressure-receiving member 30 reinforced by the center wire 32A and the second side wire 32C. Thus, the installation strength of the blower 110 and the ECU 130 can be improved.

[0264] By passing the transverse wires 33 through the front edges of the through holes 351 and 352 of the resin member 31 , the edges of the through holes 351 and 352 of the resin member 31 can be reinforced by the transverse wires 33 .

[0265] Since the resin member 31 has the mesh portion 360, the cushioning property of the first pressure-receiving member 30 can be improved. In addition, the weight of the first pressure-receiving member 30 can be reduced.

[0266] By providing the thick wall portion 361 around the blower mounting portion 390, the strength of the blower mounting portion 390 is improved, thereby improving the mounting strength of the blower 110. In addition, by providing the thick wall portion 361 around the blower mounting portion 390, the upward protrusion of the engaging portion 152 engaged with the blower mounting portion 390 can be relatively reduced.

[0267] By making the top end of the engaging portion 152 that engages with the blower mounting portion 390 protrude further downward than the blower mounting portion 390 , the amount of upward protrusion of the mounting member 150 can be reduced.

[0268] By making the thick wall portion 361 protrude further upward than the mounting member 150 , the mounting member 150 can be prevented from protruding further upward than the thick wall portion 361 .

[0269] By placing the first mounted portion 114A of the blower 110 and the thick portion 361B and the thick portion 361C in contact with each other, the shaking of the first mounted portion 114A can be suppressed. By placing the second mounted portion 114B of the blower 110 and the thick portion 361D and the thick portion 361E in contact with each other, the shaking of the second mounted portion 114B can be suppressed. Thus, the shaking of the blower 110 can be suppressed.

[0270] By arranging the blower mounting portion 390 on the right relative to the left-right center of the first pressure-bearing member 30, the blower 110 can be arranged on the right relative to the left-right center of the first pressure-bearing member 30, thereby ensuring space for installing components different from the blower 110, such as the ECU 130, on the left.

[0271] Since the first pressure-bearing member 30 has the mesh portion 360 for installing the blower installation portion 390 , the blower installation portion 390 can be installed in the first pressure-bearing member 30 , and the cushioning property of the first pressure-bearing member 30 can be improved by the mesh portion 360 .

[0272] By providing the blower mounting portion 390 in contact with the frame portion 370 surrounding the mesh portion 360 , the strength of the blower mounting portion 390 is further improved, and thus the mounting strength of the blower 110 can be further improved.

[0273] Next, a modification of the first embodiment will be described.

[0274] like Fig.11 As shown in (a) and (b), the blower 110 may also have a structure having convex portions 116A and 116B protruding from the mounted portion 114 toward the blower mounting portion 390. For example, Fig.11 As shown in (a), the convex portion 116A may be configured to have a quadrangular prism shape or a cylindrical shape. The convex portion 116A may also have a trapezoidal shape.

[0275] In addition, if Fig.11 As shown in (b), the convex portion 116B may be configured to have a rib shape extending in the front-rear direction, and a plurality of convex portions 116B may be arranged in the left-right direction. The convex portion 116B may also have a rib shape extending in the left-right direction, and a plurality of convex portions 116B may be arranged in the front-rear direction.

[0276] The convex parts 116A and 116B are connected to the fan mounting part 390 from below when the engaging part 152 of the mounting member 150 and the first through hole 391 of the fan mounting part 390 are engaged with the second through hole 115 of the mounted part 114. Since the mounted part 114 is configured to be in contact with the thick wall part 361B, the thick wall part 361C or the thick wall part 361D, the thick wall part 361E, and the fan 110 has the convex parts 116A and 116B connected to the fan mounting part 390, the thick wall part 361B, the thick wall part 361C or the thick wall part 361D, the thick wall part 361E and the convex parts 116A and 116B can further suppress the shaking of the mounted part 114. As a result, the shaking of the fan 110 can be further suppressed.

[0277] Next, the second embodiment will be described. In addition, the following description will focus on the differences from the previously described embodiment. Regarding the same points as the previously described embodiment, the same elements are given the same reference numerals and the description is omitted.

[0278] like Fig.12 and Fig.13 As shown in (a) and (b), in the second embodiment, the blower 110 is mounted on the lower side of the sensor mounting portion 340 provided on the resin member 31 of the first pressure-receiving member 30. The blower 110 is directly mounted on the resin member 31. As an example, the blower 110 has a plate-shaped mounted portion and is fixed to the resin member 31 by screws, rivets, etc.

[0279] The blower 110 is arranged at the center of the first pressure-bearing member 30 in the left-right direction. When viewed from above, the blower 110 is arranged at a position overlapping with the center wire 32A. When viewed from above, the blower 110 is arranged at a position not overlapping with the first side wire 32B and the second side wire 32C. When viewed from above, the blower 110 is arranged between the first side wire 32B and the second side wire 32C. When viewed from above, the blower 110 is arranged at a position overlapping with the horizontal wire 33.

[0280] The position of the blower 110 in the front-rear direction is closer to the front end of the first side frame 11 than the side frame cover 40. Specifically, the blower 110 is arranged forward of the front end of the side frame cover 40 when viewed from above.

[0281] The position of the air blower 110 in the front-rear direction overlaps with the through hole 351 and the through hole 352. Specifically, when viewed from above, the air blower 110 is arranged on the left side of the through hole 351. In addition, when viewed from above, the air blower 110 is arranged on the right side of the through hole 352. In other words, when viewed from above, the air blower 110 is arranged at a position between the through hole 351 and the through hole 352.

[0282] When viewed from above, the air blower 110 is arranged at a position overlapping with the sensor 140. In other words, when viewed from above, the sensor 140 is arranged at a position overlapping with the air blower 110. The position of the sensor 140 in the front-rear direction overlaps with the air blower 110. In addition, the position of the sensor 140 in the left-right direction overlaps with the air blower 110. The sensor 140 is arranged on the upper side of the air blower 110. The air blower 110 and the sensor 140 are arranged facing each other in the up-down direction with the sensor mounting portion 340 interposed therebetween.

[0283] In the second embodiment, the duct 120 extends rightward from the blower 110 , bends, and extends upward. The duct 120 passes through the through hole 351 from the lower side of the first pressure-bearing member 30 and extends to the upper side of the first pressure-bearing member 30 .

[0284] When viewed from above, the duct 120 is disposed at a position that does not overlap with the mounting portion 380. Specifically, when viewed from above, the duct 120 is disposed at a position that does not overlap with any of the first mounting portion 380A, the second mounting portion 380B, and the third mounting portion 380C.

[0285] In the second embodiment, the ECU 130 is mounted on the mounting portion 380 provided on the first pressure-receiving member 30. Specifically, the ECU 130 is mounted on the third mounting portion 380C provided on the left side support portion 312. For example, the ECU 130 is mounted on the first pressure-receiving member 30 by engaging a clamp, a claw provided on the ECU 130 itself, or the like with the mounting hole 381.

[0286] When viewed from above, the ECU 130 is arranged at a position not overlapping the center wire 32A and the first side wire 32B. The ECU 130 is arranged to the left of the center wire 32A. When viewed from above, the ECU 130 is arranged at a position overlapping the second side wire 32C.

[0287] Next, effects of the vehicle seat S according to the second embodiment will be described.

[0288] By making the position of the blower 110 in the front-rear direction overlap with the through hole 351 of the first pressure-receiving member 30, the distance from the blower 110 to the through hole 351 can be shortened. Thus, the duct 120 can be shortened.

[0289] By positioning the blower 110 closer to the front end of the first side frame 11 than the side frame cover 40 in the front-rear direction, the blower 110 can be arranged away from the side frame cover 40 .

[0290] By arranging the sensor 140 at a position overlapping with the blower 110 when viewed from above, the sensor 140 and the blower 110 can be arranged more compactly.

[0291] As mentioned above, although 1st Embodiment and 2nd Embodiment were demonstrated, the vehicle seat can be implemented by deforming suitably as shown below.

[0292] In the above-described embodiment, the vehicle seat S is structured to include the mounting member 150 having the engaging portion 152. However, for example, the vehicle seat S may not include the mounting member 150 but may include a mounting member 152. Fig.14As in the first modification shown in (a) and (b), the fan 110 has a structure with an engaging portion 117. In the first modification, the fan 110 is mounted on the first pressure-receiving member 30 by engaging the engaging portion 117 with the mounting hole 381 of the second mounting portion 380B from below. Since the fan 110 has the engaging portion 117, it is unnecessary to have an installation member having an engaging portion, so the number of parts can be reduced.

[0293] The second mounting portion 380B includes a bottom wall 382 provided with a mounting hole 381, and a side wall 383 protruding upward from the periphery of the bottom wall 382. The upper end of the side wall 383 is connected to the mesh portion 362 of the mesh portion 360 (360A, 360B). In the first modified example, the bottom wall 382 corresponds to the "blower mounting portion", and the mounting hole 381 corresponds to the "first through hole". In addition, the side wall 383 and the mesh portion 362 correspond to the "thick wall portion".

[0294] In the first modification, the side wall 383 and the net portion 362 as the thick wall portion are provided on the entire periphery of the bottom wall 382, ​​rather than being provided on a portion of the periphery of the bottom wall 382. In other words, in the first modification, the bottom wall 382 as the blower mounting portion is not in contact with the frame portion 370 (371 to 375). In addition, in the first modification, the side wall 383 and the net portion 362 as the thick wall portion only protrude upward from the bottom wall 382, ​​rather than protruding downward from the bottom wall 382.

[0295] The top end of the engaging portion 117 protrudes upward further than the bottom wall 382. The side wall 383 and the net portion 362 constituting the thick wall portion protrude upward further than the engaging portion 117. Specifically, the net portion 362 protrudes upward further than the top end of the engaging portion 117. In other words, the engaging portion 117 does not protrude upward further than the net portion 362.

[0296] like Fig.15 As in the second modification shown in (a) and (b), the vehicle seat S may be configured such that the first pressure-receiving member 30 has an engaging portion 384. Specifically, the engaging portion 384 protrudes downward from the resin member 31. In the second modification, the blower 110 is mounted on the first pressure-receiving member 30 by engaging the engaging portion 384 with the second through hole 115 provided in the mounted portion 114 of the blower 110 from above. Since the first pressure-receiving member 30 has the engaging portion 384, a mounting member having an engaging portion is not required, and the number of parts can be reduced.

[0297] The engaging portion 384 may have an installation hole 385 extending vertically at the top end. A component different from the blower 110 may be installed in the installation hole 385. For example, the harness clip 70 for holding the harness is engaged with the installation hole 385, so that the harness can be installed in the first pressure-receiving member 30.

[0298] like Fig.16 As shown in the third modified example, the vehicle seat S may also include a seat cushion airbag 160. The seat cushion airbag 160 expands during a collision to prevent the occupant from sliding off the seat cushion S1 and digging into the space under the feet, which is known as a dive phenomenon. The seat cushion airbag 160 is disposed above the disk-shaped frame 14.

[0299] When viewed from above, the blower 110, the duct 120, the ECU 130, and the sensor 140 are respectively arranged at positions that do not overlap with the pre-inflated seat cushion airbag 160. Specifically, when viewed from above, the blower 110, the duct 120, the ECU 130, and the sensor 140 are respectively arranged at positions further rearward than the pre-inflated seat cushion airbag 160.

[0300] Furthermore, when viewed from above, the second end portion 122 of the duct 120 is disposed at a position not overlapping the seat cushion airbag 160. Specifically, when viewed from above, the second end portion 122 of the duct 120 is disposed rearward of the seat cushion airbag 160 in a pre-inflation state.

[0301] like Fig.17 As shown in (a) and (b), the vehicle seat S may also include a vibration generating device 171 and a vibration generating device 172 for generating vibration. Fig.17 As in the fourth modification shown in (a), the vibration generator 171 includes two eccentric motors 171A. For example, one eccentric motor 171A is disposed in each of left and right recesses formed in the front portion of the first central portion PC1 of the seat cushion pad P1.

[0302] When viewed from above, the blower 110, the duct 120, the ECU 130 and the sensor 140 are respectively arranged at positions not overlapping with the eccentric motor 171A. Specifically, when viewed from above, the blower 110, the duct 120, the ECU 130 and the sensor 140 are respectively arranged at positions further back than the eccentric motor 171A.

[0303] In addition, if Fig.17 As shown in the fifth modification example (b), the vibration generating device 172 includes a vibration transmitting member 172A having a rod shape and a vibration output device 172B that outputs vibration to the vibration transmitting member 172A. The vibration transmitting member 172A is disposed in the seat cushion pad P1.

[0304] When viewed from above, the blower 110, the duct 120, the ECU 130, and the sensor 140 are respectively arranged at positions that do not overlap with the vibration transmission member 172A. When viewed from above, the blower 110, the duct 120, and the ECU 130 are respectively arranged further back than the rear end of the vibration transmission member 172A. When viewed from above, the sensor 140 is arranged at a position between the rear ends of the two vibration transmission members 172A.

[0305] like Fig.18 As shown in (a) and (b), the vehicle seat S may also be a structure including a plurality of air bags 181 and 182. The vehicle seat S including the air bags 181 and 182 can change the support position of the seated person by, for example, adjusting the amount of air in the air bags 181 and 182. In addition, the vehicle seat S including the air bags 181 and 182 can provide a massage effect, a wake-up effect, etc. to the seated person by, for example, repeatedly expanding and contracting the air bags 181 and 182.

[0306] like Fig.18 As shown in the sixth modification example (a), a plurality of air bags 181 are arranged between the first center portion PC1 of the seat cushion pad P1 and the seat cushion surface SK1. Specifically, the air bags 181 include a first air bag 181A, a second air bag 181B arranged behind the first air bag 181A, and a third air bag 181C arranged behind the second air bag 181B.

[0307] When viewed from above, the first air bag 181A and the second air bag 181B are arranged in a manner that the sensor mounting portion 340 and the through holes 351 and 352 are sandwiched from the front and back. When viewed from above, the second end 122 of the duct 120 and the sensor 140 are respectively arranged at positions that do not overlap with the air bag 181. Specifically, when viewed from above, the second end 122 of the duct 120 and the sensor 140 are respectively arranged between the first air bag 181A and the second air bag 181B. In addition, when viewed from above, the blower 110 can be arranged at a position that does not overlap with the air bag 181. In addition, when viewed from above, the duct 120 can be arranged at a position that does not overlap with the air bag 181. In addition, when viewed from above, the ECU 130 can be arranged at a position that does not overlap with the air bag 181.

[0308] In addition, if Fig.18 As shown in the seventh modification example (b), the air bags 182 are respectively arranged between the first side portions PS1 of the seat cushion pad P1 and the seat cushion surface SK1. Specifically, the air bags 182 include: a right air bag 182A arranged at the right first side portion PS1; and a left air bag 182B arranged at the left first side portion PS1.

[0309] When viewed from above, the blower 110, the duct 120, the ECU 130, and the sensor 140 are respectively arranged at positions that do not overlap with the air bag 182. Specifically, when viewed from above, the blower 110, the duct 120, the ECU 130, and the sensor 140 are respectively arranged at positions between the right air bag 182A and the left air bag 182B.

[0310] Furthermore, when viewed from above, second end 122 of duct 120 and sensor 140 are disposed at positions not overlapping air bag 182. Specifically, when viewed from above, second end 122 of duct 120 and sensor 140 are disposed between right air bag 182A and left air bag 182B.

[0311] In the above embodiment, the longitudinal wires 32 spanning the front frame 12 and the rear frame 13 are exemplified as the first reinforcing wires, but the first reinforcing wires may also be wires spanning the left and right first side frames 11. Fig.19 As in the eighth modification shown, the transverse wires 33 as the first reinforcing wires include a front wire 33A and a rear wire 33B.

[0312] The front wire 33A and the rear wire 33B extend in the left-right direction, respectively, and the right end is engaged with the right first side frame 11, and the left end is engaged with the left first side frame 11. The left-right central parts of the front wire 33A and the rear wire 33B are respectively covered by the resin member 31. In addition, the left and right ends of the front wire 33A and the rear wire 33B may also be covered with resin or the like.

[0313] When viewed from above, the blower 110, the duct 120, the ECU 130 and the sensor 140 are respectively arranged at positions that do not overlap with the horizontal wire 33. Specifically, when viewed from above, the blower 110, the duct 120, the ECU 130 and the sensor 140 are respectively arranged between the front wire 33A and the rear wire 33B.

[0314] In addition, in the structure where the transverse wires 33 are laid across the left and right first side frames 11, the longitudinal wires 32 (wires extending in the front-rear direction) may not be laid across the front frame 12 and the rear frame 13. In addition, the first pressure-bearing member may not include wires extending in the front-rear direction.

[0315] In the above embodiment, the ECU 130 is mounted on the first pressure-receiving member 30, but the ECU 130 may be mounted on a member other than the first pressure-receiving member 30. For example, the ECU 130 may be mounted on the seat frame F such as the first side frame 11.

[0316] In addition, if Fig. 20As shown in the ninth modification example of (a) and (b), the vehicle seat S includes a support member 190 installed in a manner of being mounted on the left and right upper rails R2, and the ECU 130 can also be installed on the support member 190. The support member 190 includes, for example, a metal plate, a resin, etc. The ECU 130 is installed on the upper surface of the support member 190. The seat cushion S1, the support member 190, and the ECU 130 can slide forward and backward together with the upper rails R2.

[0317] In the ninth modification, the blower 110 is installed on the first pressure-receiving member 30 in the same manner as in the first embodiment. Fig. 20 As shown in (a), when viewed from above, the blower 110 and the duct 120 are arranged at a position that does not overlap with the ECU 130. In this structure, since the blower 110 and the duct 120 can be arranged so as to overlap with the ECU 130 in the vertical direction, the vehicle seat S can be made compact in the vertical direction. When viewed from above, the sensor 140 is arranged at a position overlapping with the ECU 130. The sensor 140 is arranged on the upper surface of the sensor mounting portion 340, and the ECU 130 is arranged on the lower side of the sensor mounting portion 340.

[0318] exist Fig.21 In the tenth modification shown in FIG. 10 , the blower 110 is installed on the first pressure-receiving member 30 in the same manner as in the second embodiment, and the ECU 130 is similar to the ninth modification (see FIG. 10 ). Fig. 20 (b)) is similarly mounted on the support member 190. In the tenth modification, the blower 110 is arranged at a position overlapping with the ECU 130 when viewed from above. Specifically, the blower 110 is arranged on the upper side of the ECU 130. In such a structure, the wiring connecting the blower 110 and the ECU 130 can be shortened.

[0319] In the above embodiment, the blower mounting portion 390 is provided in the mesh portion 360 of the first pressure-bearing member 30 , but the blower mounting portion may be provided in a portion other than the mesh portion of the first pressure-bearing member such as a side support portion, a sensor mounting portion, or a frame portion.

[0320] In the above embodiment, the entire wires 32 and 33 are covered by the resin member 31 (elastic member), but for example, only a part of the wires may be covered by the resin member (elastic member). In other words, a part of the wires may be exposed from the resin member (elastic member).

[0321] In the above embodiment, the side frame cover 40 covers the upper side and the left-right inner side of the rear end portion of the first side frame 11, but for example, the side frame cover may only cover the left-right inner side of the rear end portion of the first side frame. In addition, the vehicle seat may not include a side frame cover.

[0322] In the above-described embodiment, the blower 110 is directly attached to the resin member 31 (elastic member), but the blower may be attached to the elastic member via a bracket or the like, for example.

[0323] In the above embodiment, the sensor 140 is arranged at a position not overlapping with the duct 120 when viewed from above, but the sensor may be arranged at a position overlapping with the duct when viewed from above, for example.

[0324] In the above embodiment, the second end 122 of the duct 120 (the connection portion between the duct and the ventilation path) overlaps with the sensor 140 in the front-to-back direction, but for example, the connection portion between the duct and the ventilation path may not overlap with the sensor in the front-to-back direction.

[0325] For example, the blower, blower mounting portion, duct, ECU (control unit), sensor, etc. may be arranged bilaterally symmetrically with the above-described embodiment and modified examples.

[0326] In the embodiment, the sensor 140 is a pressure sensor, but the sensor may also be a temperature sensor, a humidity sensor, a sound sensor, a light sensor, a heart rate sensor, a breathing sensor, a sensor for detecting the activity of the seated occupant, a sensor for detecting the amount of sweat of the seated occupant, etc.

[0327] In the above-described embodiment, the vehicle seat S has a structure in which air is blown out from the upper surface of the seat cushion S1 , but the vehicle seat may have a structure in which air is sucked from the upper surface of the seat cushion, for example.

[0328] In the above embodiment, the invention is applied to the seat cushion S1, but it can also be applied to a seat back, for example. When the invention is applied to the seat back, the front corresponds to the "seat occupant side" and the rear corresponds to the "side opposite to the seat occupant side". In addition, when the invention is applied to the seat back, the "side frame" can be configured to be long in the direction perpendicular to the left-right direction, that is, in the up-down direction.

[0329] Next, a third embodiment will be described. In the following description, the material, shape, and size of the components constituting the vehicle seat are merely specific examples and do not limit the present invention.

[0330] In addition, below, a vehicle seat mounted in a vehicle is taken as an example of a vehicle seat, and a configuration example thereof is described.

[0331] In the following description, "seat front-to-back direction" refers to the front-to-back direction of the vehicle seat, which is the direction that coincides with the direction of travel when the vehicle is traveling. In addition, "seat width direction" refers to the lateral width direction of the vehicle seat, which is the direction that coincides with the left-right direction when viewed from an occupant sitting on the vehicle seat. In addition, "up-down direction" refers to the up-down direction of the vehicle seat, which is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane. In addition, the situation referred to as "outside" refers to the situation that is close to the outside in the direction from the center of the vehicle seat unit toward the outside, and the situation referred to as "inside" refers to the situation that is close to the center in the direction from the outside of the vehicle seat unit toward the center.

[0332] In addition, the shapes, positions, postures, etc. of the various parts of the vehicle seat described below are described assuming that the vehicle seat is in a seated state, except for cases where special explanation is given.

[0333] <Vehicle Seat S>

[0334] Reference Fig. 22 and Fig.23 The basic structure of a vehicle seat will be described. Fig. 22 is a perspective view of a vehicle seat S. Fig. 22 , for the convenience of illustration, a portion of the vehicle seat S is illustrated with the cover SK removed. Fig.23 It is a perspective view showing a seat frame F of a vehicle seat S.

[0335] The vehicle seat S is a seat placed on the floor of the vehicle and for the occupants (hereinafter, sometimes referred to as seated persons) of the vehicle to sit. In the present embodiment, the vehicle seat S is used as a front seat equivalent to the front seat of the vehicle. The vehicle seat S is not limited to the front seat of the vehicle, but can also be used as a seat for the rear seat. In addition, the vehicle seat S can also be used as a middle seat of the second row or a rear seat of the third row in a vehicle including three rows of seats in the front-rear direction.

[0336] like Fig. 22 As shown, the vehicle seat S includes the following components as main components: a seat back 401 that supports the back of the seated person; a seat cushion 402 that supports the buttocks of the seated person; and a headrest 403 that is arranged on the upper part of the seat back 401 and supports the head of the seated person. In addition, the seat back 401, the seat cushion 402, and the headrest 403 are sometimes collectively referred to as a seat body.

[0337] The seat back 401 is configured by covering a back frame 410 as a frame with a pad P and further covering the pad P with a skin SK from above. The seat cushion 402 is configured by covering a cushion frame 420 as a frame with a pad P and further covering the pad P with a skin SK from above.

[0338] The headrest 403 is provided above the seat back 401 and is configured such that a pad P is placed on a headrest frame as a core material and is covered with a skin SK.

[0339] The vehicle seat S includes a rail device 404 that supports the seat body so as to be movable in the seat front-rear direction relative to the vehicle body floor (see Fig.23 The track device 404 is a device for sliding the seat body in the front-rear direction and has a known structure (the structure of a general track device). The track device 404 has a lower track 404a fixed to the floor of the vehicle and an upper track 404b that can slide relative to the lower track 404a.

[0340] In addition, the vehicle seat S includes a reclining device 405 that tilts the seat back 401 relative to the seat cushion 402 (see Fig.23 The reclining device 405 is disposed between the seat back 401 and the seat cushion 402. Through the reclining device 405, the seat back 401 can adjust the inclination angle relative to the seat cushion 402.

[0341] <Seat frame F>

[0342] In the vehicle seat S, there is provided Fig.23 The seat frame F shown in FIG. The seat frame F is a member that forms the framework of the vehicle seat S, and mainly includes a backrest frame 410 that forms the framework of the seat back 401 , and a cushion frame 420 that forms the framework of the seat cushion 402 .

[0343] <Backrest frame 410>

[0344] like Fig.23 As shown, the backrest frame 410 is formed in a square frame shape as a whole. The backrest frame 410 includes: a pair of backrest side frames 411, 411 arranged on the left and right, an upper frame 412, and a lower frame 413. The upper frame 412 is arranged between the pair of backrest side frames 411, 411, and connects the upper ends of the pair of backrest side frames 411, 411. The lower frame 413 is arranged between the pair of backrest side frames 411, 411, and connects the lower ends of the pair of backrest side frames 411. In addition, at the upper part of the backrest frame 410, a connecting frame 414 connects the left and right ends of the upper frame 412.

[0345] A pressure member 416 for a seat back is provided below the connecting frame 414. The pressure member 416 is a pressure member for supporting the back of the seated person. The pressure member 416 is connected to the connecting frame 414 via a wire member 415. The pressure member 416 is a flexible plate member that supports the back of the seated person from behind. The pressure member 416 is made of resin, but may also be made of metal.

[0346] The upper frame 412 is provided with a columnar support portion 417 through which the headrest stay of the headrest 403 is inserted. The columnar support portion 417 is preferably made of metal to firmly hold the headrest 403. The columnar support portion 417 is not limited to being made of metal, and may be made of resin.

[0347] As described above, the pair of backrest side frames 411, 411 are disposed on the left and right sides of the backrest frame 410 and are configured to be substantially symmetrical. The pair of backrest side frames 411, 411 are members extending in the seat up-down direction, and the width of each of the pair of backrest side frames 411, 411 in the seat front-back direction is formed in a manner that increases from the upper side of the seat toward the lower side of the seat.

[0348] <Seat frame 420>

[0349] The cushion frame 420 is formed in a square frame shape when viewed from above. The cushion frame 420 has a pair of cushion side frames 421, 421 separated from each other in the left and right directions. The pair of cushion side frames 421, 421 are members extending in the seat front-rear direction and are configured to be substantially symmetrical.

[0350] In addition, the cushion frame 420 includes a disc-shaped frame 422 located at the front end of the cushion frame 420, a front connecting frame 423 connecting a pair of cushion side frames 421, 421 at the front end, and a rear connecting frame 424 connecting a pair of cushion side frames 421, 421 at the rear end. The front connecting frame 423 and the rear connecting frame 424 are formed of round pipes.

[0351] Furthermore, a blower 451 is provided below the disk-shaped frame 422 . A duct 452 is connected to the blower 451 , and the blower 451 can send air to an air outlet 453 formed on a seating surface 402 a of the seat cushion 402 through the duct 452 .

[0352] <Compression member 425>

[0353] The pressure member 425 is a member that supports the seated person. Fig.23As shown in FIG. 1 , the pressure-receiving member 425 is a member formed in a plate shape. Hooks 426 are provided at the front and rear ends of the pressure-receiving member 425. The hooks 426 are formed in a substantially arc shape extending from the front and rear ends of the pressure-receiving member 425 and protruding upward (see FIG. 1 ). Fig.28 ).

[0354] The front hook 426 of the pressure receiving member 425 is hooked and fixed to the front connection frame 423, and the rear hook 426 is hooked and fixed to the rear connection frame 424. The pressure receiving member 425 is formed of a soft elastic resin, and receives the load generated by the seated person from below to support the seated person.

[0355] Conventionally, the pressure-bearing member supporting the seated person is made of metal or hard resin. However, with the electrification of vehicles, the pad is required to be made thinner to reduce the seat height in order to install batteries on the floor of the vehicle. Therefore, in order to make the pressure-bearing member supporting the seated person have cushioning properties, it is ideal to be made of a soft material.

[0356] On the other hand, if the pressure-receiving member is formed of a soft material, there is a possibility that the pressure-receiving member may bend due to the acceleration and deceleration of the vehicle body.

[0357] The pressure receiving member 425 provided in the vehicle seat S of this embodiment is formed of a soft elastomeric resin (elastic material) capable of elastic deformation. Fig.24 As shown, the pressure receiving member 425 is composed of a plurality of linear portions 430 forming a mesh-like supporting surface 425 a.

[0358] use Fig.25 The plurality of linear portions 430 are described below. The plurality of linear portions 430 include: a first arc portion 431 ( Fig.25 Indicated by two dotted lines), formed into an arc shape; and a second arc portion 432 and a third arc portion 433 (in Fig.25 ), intersecting the first arc portion 431 and forming an arc shape. In addition, the plurality of linear portions 430 include: a straight portion 435 (in Fig.25 Indicated by a dotted line), extending in the front-to-rear direction; and the right oblique line portion 436 and the left oblique line portion 437 (in Fig.25 ), extending in a direction inclined relative to the front-rear direction.

[0359] In other words, the first arc portion 431 , the second arc portion 432 , the third arc portion 433 , the straight portion 435 , the right oblique line portion 436 , and the left oblique line portion 437 each include a plurality of linear portions 430 , which intersect to form a mesh-like support surface 425 a .

[0360] <First arc portion 431>

[0361] The first arc portion 431 is arranged so that the convex direction of the arc forming the first arc portion 431 faces forward. The pressure-bearing member 425 can resist the load ( Fig.25 Therefore, when a load is applied from the front during acceleration of the vehicle, for example, the pressure receiving member 425 can be prevented from being bent in the front-rear direction.

[0362] like Fig.25 As shown, the first center point 431a of the arc forming the first arc portion 431 is located outside the area occupied by the pressure-bearing member 425. The first center point 431a is located on the center line of the pressure-bearing member 425 in the left-right direction, and the first arc portion 431 is composed of a plurality of linear portions 430 extending along the arc centered on the first center point 431a.

[0363] <Second arc portion 432>

[0364] The second arc portion 432 is arranged so that the convex direction of the arc forming the second arc portion 432 faces the oblique left front. The pressure-bearing member 425 can resist the load ( Fig.25 Therefore, the pressure receiving member 425 can be prevented from being bent in the left oblique direction.

[0365] like Fig.25 As shown, the second center point 432a of the arc forming the second arc portion 432 is located outside the area of ​​the pressure member 425 and obliquely to the right rear of the pressure member 425. The second arc portion 432 is composed of a plurality of linear portions 430 extending along an arc centered on the second center point 432a, and intersects with the first arc portion 431 at a plurality of intersections (e.g., the first intersection 441). Near the intersection of the second arc portion 432 and the first arc portion 431, the pressure member 425 can resist the load by both the second arc portion 432 and the first arc portion 431, thereby suppressing deflection in multiple directions. In addition, the second arc portion 432 is configured in a manner that intersects with the straight portion 435 at a plurality of intersections (e.g., the second intersection 442).

[0366] <Third arc portion 433>

[0367] The third arc portion 433 is configured so that the convex direction of the arc is toward the right oblique front. The pressure-bearing member 425 can resist the load (arrow H3 direction) received from the right oblique front, for example, through the third arc portion 433. Therefore, the pressure-bearing member 425 can be prevented from bending in the right oblique direction.

[0368] The third arc portion 433 is disposed symmetrically with the second arc portion 432 about the center line in the front-rear direction of the pressure-receiving member 425. By arranging the second arc portion 432 and the third arc portion 433 symmetrically, the pressure-receiving member 425 can be prevented from bending in the left and right oblique directions.

[0369] like Fig.25 As shown, the third center point 433a of the arc forming the third arc portion 433 is located at the left oblique rear of the pressure member 425 outside the area of ​​the pressure member 425. The third arc portion 433 is composed of a plurality of linear portions 430 extending along an arc centered on the third center point 433a, and intersects with the first arc portion 431 at a plurality of intersections (e.g., the third intersection 443). Near the intersection of the third arc portion 433 and the first arc portion 431, the pressure member 425 can resist the load through the third arc portion 433 and the first arc portion 431, thereby suppressing deflection in multiple directions. In addition, the third arc portion 433 is configured in a manner that intersects with the straight portion 435 at a plurality of intersections (e.g., the fourth intersection 444).

[0370] In addition, as described above, the first center point 431a to the third center point 433a of each arc forming the first arc portion 431 to the third arc portion 433 are arranged outside the area occupied by the pressure-bearing member 425. By arranging the first center point 431a to the third center point 433a outside the area, the radius of curvature of the arc can be increased compared to the case where these are located within the area. That is, the linear portion can be set to a fan-shaped relaxed arc. Thus, for example, it can be set to an appropriate shape that can resist the load, and the deflection of the pressure-bearing member 425 can be further suppressed.

[0371] <Straight line portion 435>

[0372] The linear portion 435 is a linear portion 430 extending linearly in the seat longitudinal direction. By providing the linear portion 435 extending in the longitudinal direction of the vehicle seat S, the pressure receiving member 425 can be less likely to be stretched (bent) in the longitudinal direction when the occupant is seated.

[0373] like Fig.25 As shown, the straight line portion 435 intersects with the first arc portion 431 at a plurality of intersection points (eg, the fifth intersection point 445 ).

[0374] In addition, the straight portion 435 disposed on the right side of the center of the pressure receiving member 425 intersects with the second arc portion 432 at a plurality of intersections (for example, the second intersection 442 ).

[0375] The straight portion 435 disposed on the left side of the center intersects with the third arc portion 433 at a plurality of intersections (e.g., the fourth intersection 444). The straight portion 435 intersects with the first arc portion 431 to the third arc portion 433, so that the extension (bending) of the pressure-receiving member 425 can be more efficiently reduced when the seated person sits down.

[0376] <Right oblique line portion 436>

[0377] A right oblique line portion 436 is provided in front of the second arc portion 432, and the right oblique line portion 436 includes a linear portion 430 arranged to extend obliquely relative to the front-rear direction. By providing the right oblique line portion 436 extending from the left oblique front to the right oblique rear, a load input from the left oblique front to the right oblique rear can be resisted, and deflection can be suppressed.

[0378] <Left-side oblique line 437>

[0379] A left oblique line portion 437 is provided in front of the third arc portion 433, and the left oblique line portion 437 includes a linear portion 430 arranged to extend obliquely relative to the front-rear direction. By providing the left oblique line portion 437 extending from the right oblique front to the left oblique rear, a load input from the right oblique front to the left oblique rear can be resisted, and deflection can be suppressed.

[0380] As described above, the support surface 425a of the pressure receiving member 425 is composed of a plurality of linear portions 430 extending in arc or straight lines. By arranging the linear portions 430 in a mesh shape, it is possible to suppress deflection against loads applied from various directions. The arrangement of the linear portions 430 including arc-shaped ones also has the following effects.

[0381] When a seated person sits on the vehicle seat S, the seated person's buttocks come into contact with the seat cushion, and at this time, the buttocks are compressed, which may cause numbness or pain. The cause of the numbness or pain is said to be hypoxia caused by obstruction of blood flow, and it is possible to alleviate the numbness or pain by making the buttocks come into contact with the seat cushion so that blood can flow easily. In this embodiment, an attempt is made to suppress the occurrence of numbness or pain when sitting by making the linear portion 430 forming the support surface 425a of the pressure-receiving member 425 match the shape of muscles or the body.

[0382] For example, the first arc portion 431 is arranged so as to follow the direction of the seat. Fig.26 The second arc portion 432 and the third arc portion 433 are formed in a manner that extends along the piriformis muscle of the seated person as shown by arrows A and B. Fig.26 The gluteus maximus or gluteus medius of the seated person is formed so as to extend as shown by arrows C and D.

[0383] In addition, the straight line portion 435 is arranged along the Fig.26 The hamstrings of the seated person are formed so as to extend as shown by arrows E and G.

[0384] In this way, by matching the mesh of the pressure receiving member 425 with the shape of the muscle fibers of the seated person, numbness or pain when sitting can be reduced. In particular, when the pad P is thinner, the influence of the pressure receiving member 425 is also increased, and the above effect is further exerted.

[0385] <Pressure sensor 450>

[0386] like Fig.24 As shown in FIG. 1 , a pressure sensor 450 for detecting the seated state of the seated person is provided on the pressure receiving member 425. The pressure sensor 450 is arranged at a position which is substantially the center in the left-right direction at the front part of the pressure receiving member 425.

[0387] In addition, the pressure receiving member 425 is provided with a transverse wire 427 arranged to extend in the seat width direction (left-right direction). Fig.24 As shown in FIG. 4 , the transverse wire 427 is arranged near the pressure sensor 450. By arranging the transverse wire 427 near the pressure sensor 450, it is possible to suppress excessive bending of the pressure receiving member 425 when the user is seated, and to suppress the situation where the pressure sensor 450 cannot operate normally. Fig.28 As shown, the transverse wire 427 is embedded in the pressure member 425. In addition, the transverse wire 427 is arranged at the inner side of the side of the pressure member 425, more specifically, at the inner side of the side wire 429. In addition, the transverse wire 427 may also extend beyond the side of the pressure member 425 and to the cushion side frame 421, the cushion side frame 421, and be connected to the cushion side frame 421, the cushion side frame 421.

[0388] A central wire 428 (longitudinal wire) extending in the front-rear direction is provided at the center of the pressure-receiving member 425 in the left-right direction. The transverse wire 427 and the central wire 428 are orthogonal to each other at the sixth intersection 446, thereby effectively reducing the elongation and deflection of the pressure-receiving member 425 when the seated person sits down.

[0389] In addition, in the pressure-receiving member 425, two pressure sensors 450 are arranged near the sixth intersection 446 where the transverse wire 427 and the central wire 428 intersect. By arranging the pressure sensors 450 at a position where the elongation of the pressure-receiving member 425 is effectively reduced by the transverse wire 427 and the central wire 428, it is possible to reduce the occurrence of malfunctions of the pressure sensors 450. In addition, the central wire 428 can be arranged between the two pressure sensors 450.

[0390] In addition, the pressure sensor 450 may be disposed above the transverse wire 427 or the central wire 428. In addition, the transverse wire 427 or the central wire 428 may be bent downward to form a recess, and the pressure sensor 450 may be disposed in the recess.

[0391] The thickness Ta of the pressure-bearing member 425 is about 8 mm in the portion where the transverse wire 427 or the central wire 428 is inserted, and about 6 mm in the other portion where the wire is not inserted. In addition, the pressure-bearing member 425 may be locally thinned at a position that may not have rigidity, and may be formed to have a thickness of about 3 mm, for example.

[0392] In addition, in electric vehicles, batteries are sometimes placed under the floor of the vehicle body, and heat is sometimes generated from the batteries. In order to prevent such heat from below from being easily transferred to the seated person, a heat insulating member (not shown) may be placed above the pressure-receiving member 425, for example, between the pressure-receiving member 425 and the pad P.

[0393] <Blower 451 and duct 452>

[0394] like Fig.24 As shown in FIG. 1 , a blower 451 is provided on the lower surface of the seat cushion 402, and air can be supplied toward the seated person through a duct 452 extending from the blower 451. The blower 451 is provided on the lower surface of the disc-shaped frame 422. The duct 452 extends from the blower 451 and is connected to an air supply port 453 (see FIG. 1 ) provided on the seat surface 402a of the seat cushion 402. Fig. 22 ) are connected.

[0395] In the pressure-bearing member 425, a through hole 438 is formed next to the pressure sensor 450. By inserting the pipe 452 into the through hole 438, the pipe 452 can be connected to the air outlet 453 provided on the seat surface 402a. In addition, through holes 438 are formed on the left and right sides of the pressure sensor 450, so that it can be handled whether the pressure-bearing member 425 is installed on the driver's seat side or the passenger seat. That is, whether the blower 451 is set on the left or right side of the disc-shaped frame 422, the pipe 452 can be inserted into the through hole 438 on the near side, so that the pipe 452 is connected to the air outlet 453. In addition, in order to strengthen the periphery of the through hole 438, the through hole 438 is arranged near the sixth intersection 446 of the transverse wire 427 and the central wire 428. In other words, the transverse wire 427 and the central wire 428 are arranged around the through hole 438.

[0396] <Side wire 429>

[0397] like Fig. 27As shown, wing portions 439 and wing portions 439 are provided on both sides of the pressure receiving member 425 to suppress the displacement of the pad. The wing portions 439 and wing portions 439 are formed by lifting the side portions of the pressure receiving member 425. In addition, side wires 429 and side wires 429 extending in the front-rear direction of the seat are provided below the wing portions 439 and wing portions 439 to reinforce the pressure receiving member 425 and suppress the upward and downward deflection.

[0398] The interval W between a pair of side wires 429, 429 may also be not fixed. Fig.24 As shown, the interval W may be narrowed halfway from the rear to the front and may be formed close to the end of the transverse wire 427 .

[0399] In addition, the shape of the side wire 429 is not limited to this, for example, it can also be as follows Fig.29 As shown in the figure, the interval WA between the pair of side wires 429A and 429A is narrowed near the front connection frame 423 and the rear connection frame 424 to be connected.

[0400] In addition, if Fig.30 As shown, a pair of transverse wires 427B, 427B extending in the seat width direction may be provided, and the ends of these wires may be provided in a manner of engaging with the cushion side frames 421, 421. Even in the case of a seat frame F without the front connecting frame 423 or the rear connecting frame 424, the pressure receiving member 425 may be mounted on the cushion frame 420.

[0401] In addition, in the present embodiment, the pressure-receiving member 425 is engaged with the front connecting frame 423 and the rear connecting frame 424 that connect the cushion side frames 421, but the front side of the pressure-receiving member 425 may be mounted on the disk-shaped frame 422. When the pressure-receiving member 425 is engaged with the disk-shaped frame 422, a portion formed into a tubular shape may be added to the disk-shaped frame 422 so that the end of the pressure-receiving member 425 can be engaged.

[0402] In addition, the depression on the lower side of the disc-shaped frame 422 (the surface on which the harness clamp is installed) may be replaced by the pressure-receiving member 425. The wire may be extended from the front end of the pressure-receiving member 425 and made into a hook shape for installation. In addition, the front end of the pressure-receiving member 425 may be set in an S-spring shape. A part of the disc-shaped frame 422 may be raised, and an engaging portion that engages with the raised portion may be provided on the pressure-receiving member 425. A folding claw may be formed on the engaging portion.

[0403] The present embodiment is described above using the accompanying drawings. In addition, the embodiment described is only an example for facilitating the understanding of the present invention and does not limit the present invention. That is, the shape, size, configuration, etc. of the components described in the present embodiment can be changed and improved without departing from the gist of the present invention, and the present invention naturally includes its equivalents.

[0404] In addition, as a pressure-receiving member having a plurality of linear portions, the pressure-receiving member 425 mounted on the cushion frame 420 is described as an example, but the pressure-receiving member 425 may also be mounted on the backrest frame 410 of the seat back 401 to support the back. In the case, the straight portion 435 forming the support surface 425a is formed so as to extend in the vertical direction. In addition, the central wire 428 (longitudinal wire) passing through the center of the pressure-receiving member 425 is arranged so as to extend in the vertical direction.

[0405] In the above embodiment, the vehicle seat S mounted on a car is exemplified as a vehicle seat, but it may be a vehicle seat mounted on vehicles other than cars, such as railway vehicles, ships, airplanes, etc. In addition, the invention may also be applied to seats used in homes, etc.

[0406] The respective elements described in the above-mentioned embodiment and modified examples can be implemented in any combination.

Claims

1. A seat for a vehicle, characterized in that: include: A seat frame having left and right side frames that are separately arranged in the left-right direction; A pressure-bearing member supports the seated person and is disposed between the left and right side frames; as well as A blower, installed on the pressure member, The pressure-bearing member includes an elastic member having elasticity, The blower is mounted on the elastic member.

2. The vehicle seat according to claim 1, characterized in that: The pressure-bearing member is in a plate shape.

3. The vehicle seat according to claim 2, characterized in that: The elastic member includes an elastomer.

4. The vehicle seat according to claim 3, characterized in that: The pressure receiving member includes the elastic member and a wire material covered by the elastic member.

5. The vehicle seat according to any one of claims 1 to 4, characterized in that: The pressure-receiving member has a mounting portion for mounting a member different from the blower on the pressure-receiving member. The air blower is arranged at a position not overlapping with the mounting portion when viewed from the seated person's side.

6. The vehicle seat according to claim 5, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as A duct connects the blower to the ventilation path, The duct is arranged at a position not overlapping with the mounting portion when viewed from the seated person's side.

7. The vehicle seat according to any one of claims 1 to 4, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as A duct connects the blower to the ventilation path, The blower is arranged on the side of the pressure receiving member opposite to the seated person side. The pressure-bearing member has a through hole, The duct passes through the through hole from the side of the pressure receiving member opposite to the seat occupant side and extends toward the seat occupant side.

8. The vehicle seat according to claim 7, characterized in that: The side frame is long in a direction perpendicular to the left-right direction. The position of the blower in the longitudinal direction of the side frame overlaps with the through hole.

9. The vehicle seat according to any one of claims 1 to 4, characterized in that: The side frame is long in a direction perpendicular to the left-right direction. The vehicle seat further includes a side frame cover that covers at least the left-right inner side of one end portion of the side frame in the longitudinal direction. The position of the blower in the longitudinal direction is closer to the other end of the side frame in the longitudinal direction than the side frame cover.

10. The vehicle seat according to any one of claims 1 to 4, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as A duct connects the blower to the ventilation path, The side frame is long in a direction perpendicular to the left-right direction. The vehicle seat further includes a side frame cover that covers at least the left-right inner side of one end portion of the side frame in the longitudinal direction. A connection portion between the duct and the air passage is located closer to the other end portion of the side frame in the longitudinal direction than the side frame cover in the longitudinal direction.

11. The vehicle seat according to any one of claims 1 to 4, characterized in that: The side frame is long in a direction perpendicular to the left-right direction. The vehicle seat further includes a side frame cover that covers at least the left-right inner side of one end portion of the side frame in the longitudinal direction. The position of the blower in the longitudinal direction overlaps with the side frame cover.

12. The vehicle seat according to any one of claims 1 to 4, characterized in that: The blower is directly mounted on the elastic member.

13. The vehicle seat according to claim 1, characterized in that: It also includes sensors for detecting seated persons. The sensor is mounted on the seat occupant side surface of the pressure receiving member. The blower is attached to a surface of the pressure receiving member on the side opposite to the seated person side.

14. The vehicle seat according to claim 13, characterized in that: The sensor is arranged at a position overlapping with the air blower when viewed from the seated person's side.

15. The vehicle seat according to claim 13, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as A duct connects the blower to the ventilation path, The side frame is long in a direction perpendicular to the left-right direction. The connection portion of the duct and the ventilation path overlaps the sensor at a position in the longitudinal direction of the side frame.

16. The vehicle seat according to claim 15, characterized in that: The connection portion between the duct and the ventilation path is arranged on one side in the left-right direction relative to the left-right center of the pressure-receiving member. The sensor is disposed on the other side in the left-right direction with respect to the left-right center of the pressure receiving member.

17. The vehicle seat according to claim 15, characterized in that: The sensor is disposed at a position not overlapping with the duct when viewed from the seated person's side.

18. The vehicle seat according to claim 13, characterized in that: The sensor is arranged at a position not overlapping with the air blower when viewed from the seated person's side.

19. The vehicle seat according to claim 18, characterized in that: The position of the sensor in the left-right direction does not overlap with the air blower.

20. The vehicle seat according to claim 18, characterized in that: The side frame is long in a direction perpendicular to the left-right direction. The vehicle seat further includes a side frame cover that covers at least the left-right inner side of one end portion of the side frame in the longitudinal direction. The position of the blower in the longitudinal direction overlaps with the side frame cover. The position of the sensor in the longitudinal direction is closer to the other end portion of the side frame in the longitudinal direction than the side frame cover.

21. The vehicle seat according to any one of claims 13 to 20, characterized in that: The sensor is a pressure sensor.

22. The vehicle seat according to claim 1, characterized in that: The seat frame includes a pair of connecting frames that connect the left and right side frames and are arranged to be separated in a direction orthogonal to the left-right direction. The pressure bearing member comprises: a resin member serving as the elastic member and having a plate shape; and The first reinforcing wire is installed on the left and right side frames or the pair of connecting frames and is covered by the resin member. The air blower is arranged at a position not overlapping with the first reinforcing wire when viewed from the seated person's side.

23. The vehicle seat according to claim 22, characterized in that: The first reinforcing wire has a bent portion, The position of the air blower in the direction in which the first reinforcing wire is installed overlaps with the bent portion.

24. The vehicle seat according to claim 23, characterized in that: comprising a control device, the control device being used to control the blower and being installed on the pressure-bearing member, The position of the control device in the direction in which the first reinforcing wire is laid overlaps with the bent portion.

25. The vehicle seat according to claim 24, characterized in that: The control device is arranged at a position not overlapping with the first reinforcing wire when viewed from the seated person's side.

26. The vehicle seat according to claim 22, characterized in that: The first reinforcing wire includes a first wire and a second wire, and the first wire and the second wire are arranged separately in a direction orthogonal to a direction in which the first reinforcing wire is installed. The blower is disposed between the first wire and the second wire when viewed from the seated person side.

27. The vehicle seat according to claim 22, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as a duct connecting the blower to the ventilation path; The pressure receiving member has a second reinforcing wire material that extends in a direction orthogonal to the first reinforcing wire material when viewed from the seated person's side and is covered by the resin member, When viewed from the seated person's side, the connection portion between the duct and the ventilation path is arranged at a position closer to the second reinforcing wire than to the air blower.

28. The vehicle seat according to claim 22, characterized in that: comprising a control device, the control device being used to control the blower and being installed on the pressure-bearing member, The first reinforcing wire is mounted on the pair of connecting frames. The first reinforcing wire includes a central wire arranged in the middle in the left-right direction, The blower is arranged on one side in the left-right direction relative to the central wire. The control device is arranged on the other side in the left-right direction with respect to the center wire.

29. The vehicle seat according to claim 28, characterized in that: The first reinforcing wire includes: a first side wire, which is arranged on one side in the left-right direction relative to the central wire; and a second side wire, which is arranged on the other side in the left-right direction relative to the central wire. When viewed from the seated person side, the blower is arranged between the center wire and the first side wire. The control device is arranged between the center wire and the second side wire when viewed from the seated person side.

30. The vehicle seat according to claim 22, characterized in that: include: a pad covering the seat frame and having a ventilation path therein; as well as A duct connects the blower to the ventilation path, The blower is arranged on the side of the pressure receiving member opposite to the seated person side. The resin member has a through hole, The duct passes through the through hole from the side of the pressure receiving member opposite to the seated person side and extends toward the seated person side. The pressure receiving member has a second reinforcing wire material that extends in a direction orthogonal to the first reinforcing wire material when viewed from the seated person's side and is covered by the resin member, The second reinforcing wire passes through a portion of the edge of the through hole.

31. The vehicle seat according to claim 22, characterized in that: The resin member has a mesh portion in a mesh shape.

32. The vehicle seat according to claim 22, characterized in that: The resin member includes an elastomer.

33. The vehicle seat according to claim 1, characterized in that: The pressure bearing member comprises: A plate-shaped fan mounting portion having a first through hole for engaging the engaging portion for mounting the fan on the pressure-receiving member; and The thick wall portion is in contact with the blower mounting portion and is provided at least in a portion of the periphery of the blower mounting portion, and protrudes toward the seated person side at least further than the blower mounting portion.

34. The vehicle seat according to claim 33, characterized in that: The mounting member includes a mounting member for mounting the blower on the pressure receiving member and having the engaging portion engaging with the first through hole from the seated person side toward the side opposite to the seated person side, The front end portion of the engaging portion protrudes further toward the side opposite to the seated person side than the blower mounting portion.

35. The vehicle seat according to claim 34, characterized in that: The thick wall portion protrudes further toward the seated person than the mounting member.

36. The vehicle seat according to claim 34, characterized in that: The thick-walled portion includes a first thick-walled portion and a second thick-walled portion. The first thick wall portion and the second thick wall portion protrude further toward a side opposite to a seated person side than the blower mounting portion. The fan installation portion is located between the first thick-walled portion and the second thick-walled portion. The blower has a plate-shaped mounted portion, and the mounted portion has a second through hole for the engaging portion to engage with. The mounted portion is disposed on a side of the blower mounting portion opposite to a seated person's side so as to be in contact with the first thick portion and the second thick portion.

37. The vehicle seat according to claim 36, characterized in that: The fan has a convex portion, which protrudes from the mounted portion toward the fan mounting portion and is in contact with the fan mounting portion.

38. The vehicle seat according to claim 33, characterized in that: The blower installation portion is disposed on one side in the left-right direction relative to the left-right center of the pressure-receiving member.

39. The vehicle seat according to claim 33, characterized in that: The pressure-bearing member has a mesh portion in a mesh shape, The blower installation portion is arranged in a manner to block the mesh inside one of the meshes of the mesh portion. The thick wall portion is a mesh portion of the mesh portion.

40. The vehicle seat according to claim 39, characterized in that: The pressure-receiving member includes a frame portion provided so as to surround the mesh portion. The blower installation portion is disposed in contact with the frame portion.

41. The vehicle seat according to claim 33, characterized in that: The air blower includes the engaging portion.

42. The vehicle seat according to claim 1, characterized in that: The pressure receiving member has a plurality of linear portions formed by the elastic member to form a mesh-like supporting surface. The plurality of linear portions include a first arc portion formed in an arc shape, and a second arc portion intersecting the first arc portion and formed in an arc shape.

43. The vehicle seat according to claim 42, characterized in that: The plurality of linear portions include a linear portion extending linearly in the seat front-rear direction or the seat up-down direction.

44. The vehicle seat according to claim 43, characterized in that: The straight line portion intersects the first arc portion.

45. The vehicle seat according to claim 44, characterized in that: The straight line portion intersects with the second arc portion.

46. ​​The vehicle seat according to claim 42, characterized in that: A first center point of the arc forming the first arc portion and a second center point of the arc forming the second arc portion are located outside the region occupied by the pressure receiving member.

47. The vehicle seat according to claim 43, characterized in that: The plurality of linear portions include a third arc portion, the third arc portion intersecting the first arc portion, having a third center point different from a second center point of the arc forming the second arc portion, and being formed in an arc shape, The third arc portion intersects the straight portion.

48. The vehicle seat according to claim 42, characterized in that: The pressure-bearing member comprises: a pressure sensor for detecting the seated state of the seated person; and a transverse wire extending in the width direction of the seat. The transverse wire is arranged near the pressure sensor.

49. The vehicle seat according to claim 48, characterized in that: The pressure receiving member has a longitudinal wire that is orthogonal to the transverse wire and extends in the front-rear direction or the up-down direction of the seat.

50. The vehicle seat according to claim 49, characterized in that: The pressure sensor is arranged near the intersection of the transverse wire and the longitudinal wire.

51. The vehicle seat according to claim 42, characterized in that: Also included is a duct that sends air from the blower to the seated person side, The pressure-bearing member comprises: a transverse wire extending in the width direction of the seat; and a longitudinal wire orthogonal to the transverse wire and extending in the front-rear direction or the up-down direction of the seat, The pressure-receiving member has a through hole formed near an intersection of the horizontal wire and the vertical wire, through which the pipe is inserted.

Images