Vehicle seats

Abstract

To provide a vehicular seat in which an air passage can be arranged compactly.SOLUTION: The vehicular seat comprises a seat main body on which a person is seated and a temperature regulator that can blow out air whose temperature is regulated, from a surface at the seated person side of the seat main body. The seat main body comprises left and right side frames 11, a pan frame 14 connecting front end parts of the left and right side frames 11 to each other, and a plate-like pressure receiving member 30 that supports a seated person, between the left and right side frames 11. The temperature regulator comprises a first blowing unit that can blow the air whose temperature is regulated, and a ventilation bag 120A that guides the air blown from the first blowing unit to an upper surface of a seat cushion, which has a blow-out port for blowing out the air blown from the first blowing unit. The ventilation bag 120A is formed to pass on an arrangement space SP which is a space surrounded by the side frames 11, the pan frame 14 and the pressure receiving member 30, from the upper side toward the lower side of the pressure receiving member 30.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a vehicle seat.

Background Art

[0002] Conventionally, a vehicle seat configured to blow out temperature-controlled air around the body of a seated person is known. For example, the vehicle seat of Patent Document 1 is configured to blow out air toward the seated person from a pair of left and right air outlets provided on the lower sides of both left and right sides of the seat back. In this technology, a duct having an air outlet is connected to a supply device that supplies air through the rear of the left and right gussets of the pad of the seat back.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the conventional configuration, since the duct passes through the rear of the left and right gussets of the pad of the seat back, the air passage could not be arranged compactly.

[0005] Therefore, an object is to provide a vehicle seat in which the air passage can be arranged compactly.

Means for Solving the Problems

[0006] The vehicle seat comprises a seat body on which a person sits, and a temperature control device that enables temperature-controlled air to be blown out from the seat body on the side facing the occupant, the seat body comprises a seat frame having left and right side frames spaced apart to the left and right, and a connecting frame connecting one end of the left and right side frames in the longitudinal direction, a plate-shaped pressure receiving member that supports the occupant between the left and right side frames, and a seat pad that covers the seat frame and the pressure receiving member, the temperature control device comprises a first air supply unit capable of blowing out temperature-controlled air, and a ventilation passage forming member that guides the air from the first air supply unit to the seat body on the side facing the occupant, and has an outlet for blowing out the air from the first air supply unit, the ventilation passage forming member is characterized in that it passes through an arrangement space which is a space enclosed by one of the left and right side frames, the connecting frame, and the pressure receiving member, from the occupant side of the pressure receiving member to the opposite side from the occupant side.

[0007] This configuration allows for a compact arrangement of the ventilation channel forming member, which serves as an air passage. Furthermore, the side frame, connecting frame, and pressure receiving member can prevent the ventilation channel forming member from moving and protect it.

[0008] Furthermore, the vehicle seat is equipped with an air conditioning device that can blow out or draw in air from the seat side of the seat body, and the air conditioning device comprises a second blower unit that forms an airflow, and a duct that connects the second blower unit and a seat ventilation passage formed in the seat pad, and the duct is connected to the seat ventilation passage through a through hole formed in the pressure receiving member, and the portion of the ventilation passage forming member that passes through the arrangement space may be arranged in a range that overlaps in the longitudinal direction with the portion of the duct that is connected to the seat ventilation passage.

[0009] According to this design, the ventilation channel forming member and the duct can be compactly arranged in the longitudinal direction. Furthermore, since a portion of the pressure receiving member is positioned between the ventilation channel forming member and the duct, interference between the ventilation channel forming member and the duct can be suppressed by the pressure receiving member.

[0010] Furthermore, the vehicle seat may be configured such that the seat body includes an inner cover that covers the left and right inner sides of one of the side frames, and the ventilation passage forming member passes between the connecting frame and the inner cover.

[0011] According to this design, the ventilation channel forming member and the inner cover can be arranged in a longitudinal direction, allowing for a compact arrangement of the ventilation channel forming member and the inner cover in the left-right direction. Furthermore, the inner cover can prevent the ventilation channel forming member from moving and can also protect the ventilation channel forming member.

[0012] Furthermore, the pressure-receiving member may have a metal wire and a non-metallic covering member that covers the metal wire, and the metal wire may have a first extending portion that passes through the edge of the pressure-receiving member, which forms the arrangement space between it and one of the side frames.

[0013] According to this, the edge of the pressure-receiving member, which has high rigidity due to the passage of the first extended portion of the metal wire, can create a space through which the ventilation passage forming member can pass.

[0014] Furthermore, the first extension portion may extend in the longitudinal direction, and the metal wire may have a second extension portion extending from the longitudinal end of the first extension portion in one direction to the left or right, and a bent portion formed between the first extension portion and the second extension portion.

[0015] According to this, the rigidity of the metal wire near the first extended portion can be increased by the bent portion, so the rigidity of the edge of the pressure-receiving member that forms the arrangement space through which the ventilation channel forming member passes can be further increased.

[0016] Furthermore, the vehicle seat may be equipped with a vibration generating device that generates vibrations, wherein the vibration generating device is positioned inside the contour of the pressure receiving member when viewed from the seated person's side, and the portion of the ventilation passage forming member that passes through the arrangement space may be positioned in a range that overlaps with the vibration generating device in the longitudinal direction.

[0017] According to this design, the ventilation channel forming member and the vibration generator can be compactly arranged in the longitudinal direction. Furthermore, since a portion of the pressure receiving member is positioned between the ventilation channel forming member and the vibration generator, interference between the ventilation channel forming member and the vibration generator can be suppressed.

[0018] Furthermore, the portion of the ventilation channel forming member that passes through the arrangement space may be configured to be positioned in the longitudinal direction between one end and the other end of the pressure receiving member in the longitudinal direction.

[0019] According to this, the ventilation channel forming member and the pressure receiving member can be compactly arranged in the longitudinal direction.

[0020] Furthermore, the pressure-receiving member may have a first fastening portion that hooks onto the sheet frame, the first fastening portion formed at one end in the longitudinal direction, and a second fastening portion that hooks onto the sheet frame, the second fastening portion formed at the other end in the longitudinal direction, and the portion of the ventilation passage forming member that passes through the arrangement space may be positioned between the first fastening portion and the second fastening portion in the longitudinal direction.

[0021] According to this, interference between the ventilation channel forming member and the pressure-receiving member of the seat frame and the member to which they are hooked can be suppressed.

[0022] Furthermore, the connecting frame may be a pan frame made of sheet metal.

[0023] Further, the ventilation passage forming member may have a configuration including a filler having air permeability and a bag covering the filler, the bag having one end connected to the first blower unit and the other end formed with the air outlet.

[0024] Further, the seat body includes a seat cushion having the left and right side frames, the connection frame, and the pressure receiving member, a seat back, and a headrest. The vehicle seat may have a configuration including a reclining mechanism that rotatably connects the seat back to the seat cushion and a moving mechanism that enables the seat cushion to move relative to the vehicle floor.

Effects of the Invention

[0025] According to the vehicle seat described above, the ventilation passage forming member can be arranged compactly. Further, movement of the ventilation passage forming member can be suppressed, and the ventilation passage forming member can be protected.

[0026] Further, by connecting the duct to the seat ventilation passage through the through hole of the pressure receiving member and arranging the portion of the ventilation passage forming member passing through the arrangement space to overlap in the longitudinal direction with the portion connected to the seat ventilation passage of the duct, the ventilation passage forming member and the duct can be arranged compactly in the longitudinal direction. Further, interference between the ventilation passage forming member and the duct can be suppressed.

[0027] Further, by passing the ventilation passage forming member between the connection frame and the inner cover, the ventilation passage forming member and the inner cover can be arranged compactly in the left - right direction. Further, movement of the ventilation passage forming member can be suppressed, and the ventilation passage forming member can be protected.

[0028] Further, by having the metal wire member have a first extending portion passing through the edge of the pressure receiving member, an arrangement space through which the ventilation passage forming member passes can be formed by the edge of the highly rigid pressure receiving member.

[0029] Furthermore, by having the metal wire further include a second extended portion and a bent portion, the rigidity of the edge of the pressure-receiving member that forms the arrangement space through which the ventilation channel forming member passes can be further increased.

[0030] Furthermore, by positioning the vibration generator inside the contour of the pressure-receiving member when viewed from the seated person's side, and positioning the portion of the ventilation channel forming member that passes through the arrangement space in a range that overlaps with the vibration generator in the longitudinal direction, the ventilation channel forming member and the vibration generator can be compactly arranged in the longitudinal direction. In addition, interference between the ventilation channel forming member and the vibration generator can be suppressed.

[0031] Furthermore, by positioning the portion of the ventilation channel forming member that passes through the placement space between one end and the other end of the pressure receiving member in the longitudinal direction, the ventilation channel forming member and the pressure receiving member can be compactly arranged in the longitudinal direction.

[0032] Furthermore, by positioning the portion of the ventilation channel forming member that passes through the placement space between the first and second fastening portions in the longitudinal direction, interference between the ventilation channel forming member and the member to which the pressure-receiving member of the sheet frame is hooked can be suppressed. [Brief explanation of the drawing]

[0033] [Figure 1] This is a perspective view showing a vehicle seat according to an embodiment. [Figure 2] This is a perspective view showing the seat frame. [Figure 3] This is a view of the seat cushion frame, seat cushion pressure receiving member, and inner cover from above. [Figure 4] This is a view of the seat cushion pressure-receiving member from above. [Figure 5] This is a view of the seat cushion pad and seat cushion ventilation bag from above. [Figure 6] This is a view of the seat back pad and seat back ventilation bag from the front. [Figure 7] This is a perspective view showing the seat cushion pad and air conditioning unit. [Figure 8] This is a perspective view showing the seat back pad and duct. [Figure 9] This is a view of a vehicle seat from below. [Figure 10] This is a perspective view showing the temperature control device. [Figure 11] This is a cross-sectional view of the seat cushion near the first pad hole. [Figure 12] This is a cross-sectional view of the seatback near the first pad hole. [Figure 13] This is a perspective view showing the seat cushion frame, seat cushion pad, seat cushion pressure receiving member, compression coil spring, plate, and temperature control device of a vehicle seat according to the first modified example. [Figure 14] This is a view of the seat cushion frame and seat cushion pressure receiving member from above. [Figure 15] This is a perspective view showing the seat cushion pad, seat cushion surface, bag member, and hose of a vehicle seat according to the second modified example. [Figure 16] This is a cross-sectional view of the seat cushion near the first pad hole. [Figure 17] This is a view from below of a vehicle seat according to the third modified example. [Modes for carrying out the invention]

[0034] Next, an embodiment of a vehicle seat will be described. In this specification, front-to-back, left-to-right, and up-and-down directions are based on the perspective of a person sitting in the vehicle seat (seatee). As shown in Figure 1, the vehicle seat according to this embodiment is configured as a vehicle seat S to be installed in an automobile as a vehicle. The vehicle seat S comprises a seat body S0 on which a person sits, a temperature control device 100, and an air conditioning device 200.

[0035] The seat body S0 comprises a seat cushion S1, a seat back S2, and a headrest S3. The vehicle seat S further comprises a reclining mechanism RL that rotatably connects the seat back S2 to the seat cushion S1, and a moving mechanism SR that makes the seat cushion S1 movable relative to the floor of the vehicle. In this embodiment, the moving mechanism SR has left and right lower rails R1 fixed to the floor of the vehicle, and left and right upper rails R2 that engage with the lower rails R1 so as to be slidable in the forward and backward directions. The seat cushion S1 has a seat cushion frame F1 (see Figure 2), which will be described later, fixed to the left and right upper rails R2. As a result, the seat cushion S1 (seat body S0) is slidable in the forward and backward directions relative to the floor of the vehicle.

[0036] As shown in Figures 1 and 2, the seat body S0 comprises a seat frame F, a seat pad P that covers the seat frame F, and a surface SK that covers the seat frame F and the seat pad P. The seat frame F includes a seat cushion frame F1 which constitutes the frame of the seat cushion S1, and a seat back frame F2 which constitutes the frame of the seat back S2.

[0037] The seat pad P is made of a foamed resin such as urethane foam, and includes a seat cushion pad P1 that covers the seat cushion frame F1 and a seat back pad P2 that covers the seat back frame F2. The seat cushion pad P1 has a first central part PC1 and left and right first side parts PS1 provided on the left and right sides of the first central part PC1 and extending upward above the first central part PC1. The seat back pad P2 has a second central part PC2 and left and right second side parts PS2 provided on the left and right sides of the second central part PC2 and extending forward above the second central part PC2.

[0038] The surface material SK is made of, for example, leather or fabric, and includes a seat cushion surface material SK1 that covers the seat cushion frame F1 and seat cushion pad P1, and a seat back surface material SK2 that covers the seat back frame F2 and seat back pad P2.

[0039] As shown in Figure 2, the seat cushion S1 comprises a seat cushion frame F1, a seat cushion pressure receiving member 30 which serves as a pressure receiving member and support member, and left and right inner covers 40. The seat cushion S1 is constructed by covering the seat cushion frame F1 and the seat cushion pressure receiving member 30 with a seat cushion pad P1 and a seat cushion surface SK1. The seat cushion pad P1 covers the seat cushion frame F1 which constitutes the seat frame F and the seat cushion pressure receiving member 30.

[0040] The seat cushion frame F1 includes seat cushion side frames 11 as left and right side frames, a front frame 12, a rear frame 13, and a pan frame 14 as a connecting frame. The seat cushion side frame 11 is made of sheet metal and is formed to be long from front to back. The left and right seat cushion side frames 11 are spaced apart from each other. The front frame 12 is made of metal pipes and connects the front ends of the left and right seat cushion side frames 11. The rear frame 13 is made of metal pipe and connects the rear ends of the left and right seat cushion side frames 11. The pan frame 14 is made of sheet metal and connects one end of the left and right seat cushion side frames 11 in the longitudinal direction. More specifically, the pan frame 14 connects the front ends of the left and right seat cushion side frames 11. In the following explanation, the longitudinal direction of the seat cushion side frame 11 will also be simply referred to as the "longitudinal direction".

[0041] As shown in Figure 3, the pan frame 14 has a central pan frame portion 14A and left and right pan frame side portions 14B. The central pan frame portion 14A is positioned in front of the front frame 12. The rear end E2 of the pan frame side portion 14B is positioned behind the rear end E1 of the central pan frame portion 14A. The pan frame side portion 14B has a rear end E2 and inclined ends E3 that extend diagonally from the left and right ends of the rear end E1 of the central pan frame portion 14A toward the rear end E2, with the inclined ends E3 being positioned further outwards to the left and right. When viewed from above the seat cushion frame F1, the inclined ends E3 extend diagonally so as to intersect with the front frame 12, and the rear end E2 of the pan frame side portion 14B is positioned behind the front frame 12.

[0042] The seat cushion pressure-receiving member 30 is a plate-shaped member that supports the occupant and is positioned on the side of the seat pad P opposite to the occupant's side. More specifically, the seat cushion pressure-receiving member 30 is positioned on the side of the seat cushion pad P1 opposite to the occupant's side. With respect to the seat cushion S1, "occupant's side" corresponds to the upper side, and "opposite side of the occupant's side" corresponds to the lower side. That is, the seat cushion pressure-receiving member 30 is positioned on the lower side of the seat cushion pad P1. In this embodiment, the seat cushion pressure-receiving member 30 is positioned between the left and right seat cushion side frames 11 and supports the occupant between the left and right seat cushion side frames 11.

[0043] As shown in Figure 4, the seat cushion pressure receiving member 30 has a main body portion 31, a front fastening portion 32 as a first fastening portion, and a rear fastening portion 33 as a second fastening portion. The main body 31 has a first support portion 31A and left and right second support portions 31B located at the left and right rear ends, and is positioned between the front frame 12 and the rear frame 13. The first support portion 31A has two through holes 34 and two through holes 35. The through holes 34 are roughly rectangular through holes formed in the front part of the main body 31 that penetrate vertically, and the two through holes 34 are arranged side by side. The through holes 35 are through holes formed near the center of the main body 31 that penetrate vertically, and the two through holes 35 are arranged side by side. The through holes 35 are positioned near the position corresponding to the lowest protruding part of the sit bones of a seated person. The second support portions 31B extend diagonally outward and upward from the rear ends of both the left and right ends of the first support portion 31A (see Figure 2).

[0044] The front fastening portion 32 has a hook shape and is the part that hooks onto the front frame 12 of the seat cushion frame F1 which constitutes the seat frame F. The front fastening portion 32 is formed at one end of the seat cushion pressure receiving member 30 in the longitudinal direction. Specifically, the front fastening portion 32 is formed at the front end of the seat cushion pressure receiving member 30. The rear fastening portion 33 has a hook shape and is the part that hooks onto the rear frame 13 of the seat cushion frame F1. The rear fastening portion 33 is formed at the other end of the seat cushion pressure receiving member 30 in the longitudinal direction. Specifically, the rear fastening portion 33 is formed at the rear end of the seat cushion pressure receiving member 30.

[0045] The seat cushion pressure receiving member 30 is attached to the seat cushion frame F1 by the front fastening portion 32 being hooked onto the front frame 12 from above, and the rear fastening portion 33 being hooked onto the rear frame 13 from above.

[0046] The seat cushion pressure receiving member 30 is composed of a metal wire 300 and a non-metallic covering member 350 that covers the metal wire 300. In this embodiment, the covering member 350 is made of resin and is integrally formed with the metal wire 300 by insert molding or the like, covering the metal wire 300.

[0047] The metal wire 300 has left and right side portions 310 that extend approximately front to back, passing through the left and right edges 30A of the seat cushion pressure receiving member 30, and a front portion 330 that connects the front ends of the left and right side portions 310. In this embodiment, the metal wire 300 consists of a single metal wire. Each of the left and right side sections 310 has a first extension section 311, a second extension section 312, a third extension section 313, a fourth extension section 314, a fifth extension section 315, a sixth extension section 316, a seventh extension section 317, a front hook section 321, and a rear hook section 322, respectively.

[0048] The first extended portion 311 extends in the longitudinal direction, and in this embodiment, in the front-to-back direction. The first extended portion 311 is the left and right edge portions 30A of the seat cushion pressure receiving member 30, and is the portion that passes through the edge portion 30A that forms an arrangement space SP (see Figure 3) described later between it and one of the left and right seat cushion side frames 11.

[0049] The second extension portion 312 extends from one end of the first extension portion 311 in the longitudinal direction to one side in the left-right direction. Specifically, the second extension portion 312 bends from the rear end of the first extension portion 311 and extends outward to the left and right. The metal wire 300 has a first bent portion 311A ​​as a bent portion formed between the first extension portion 311 and the second extension portion 312. The third extension 313 extends from the other end of the first extension 311 in the longitudinal direction to one side in the left-right direction. Specifically, the third extension 313 bends from the front end of the first extension 311 and extends inward to the left and right. The metal wire 300 has a second bent portion 311B formed between the first extension 311 and the third extension 313.

[0050] The fourth extension portion 314 bends from the rear end of the second extension portion 312 and extends to the rear, and the fifth extension portion 315 bends from the rear end of the fourth extension portion 314 and extends diagonally upward. The sixth extension portion 316 bends from the rear end of the fifth extension portion 315 and extends to the rear, and the seventh extension portion 317 bends from the rear end of the sixth extension portion 316 and extends inward and diagonally downward as it goes further back. The fifth extension portion 315, the sixth extension portion 316, and the seventh extension portion 317 form the edge of the second support portion 31B of the edge portion 30A of the seat cushion pressure receiving member 30.

[0051] The front hook portion 321 extends forward from the front end of the third extension portion 313 and is curved to form a roughly arc shape. The front hook portion 321 is covered by the covering member 350 and is hooked onto the front frame 12 as part of the front fastening portion 32. The rear hook portion 322 extends rearward from the rear end of the seventh extension portion 317 and is curved to form a roughly arc shape. The rear hook portion 322 is covered by the covering member 350 and is hooked onto the rear frame 13 as part of the rear fastening portion 33.

[0052] The front section 330 has left and right eighth extensions 331, left and right ninth extensions 332, and a tenth extension 333. Each of the eighth extensions 331 bends from the front end of the corresponding front hook portion 321 and extends inward to the left and right.

[0053] Each ninth extension 332 bends and extends to the rear from the left and right inner ends of the corresponding eighth extension 331. The ninth extension 332 has a hook portion 322A at its front end that is curved to form a roughly arc shape. The hook portion 322A is covered by the covering member 350 and, together with the front hook portion 321 of the side portion 310, forms a front hook portion 32 that is hooked onto the front frame 12. The 10th extension 333 extends to the left and right, connecting the rear ends of the left and right 9th extensions 332.

[0054] The seat cushion pressure receiving member 30 has a sensor placement section 36 in the left and right center of the front part. The sensor placement section 36 is the part where a seating sensor SE for detecting seating is placed. The seating sensor SE is placed between the seat cushion pressure receiving member 30 and the seat cushion pad P1. The sensor placement section 36 is formed by the covering member 350 in the part surrounded by the left and right ninth extensions 332 and tenth extensions 333. The sensor placement section 36 is located between the left and right through holes 34. The through holes 34 are located between the corresponding first extension 311 and ninth extension 332.

[0055] As shown in Figure 3, the inner cover 40 is made of resin and covers the left and right inner sides of one of the seat cushion side frames 11. More specifically, the inner cover 40 has an upper cover portion 41 and a side cover portion 42. The upper cover portion 41 is the part that covers the upper rear part of the seat cushion side frame 11. The side cover portion 42 is the part that covers the left and right inner sides of the rear part of the seat cushion side frame 11 and extends downward from the left and right inner ends of the upper cover portion 41 (see Figure 2). The side cover portion 42 is located between the corresponding seat cushion side frame 11 and the seat cushion pressure receiving member 30.

[0056] As shown in Figure 2, the seat back S2 comprises a seat back frame F2 and a seat back pressure receiving member 50. The seat back S2 is constructed by covering the seat back frame F2 and the seat back pressure receiving member 50 with a seat back pad P2 and a seat back surface SK2. The seat back pad P2 covers the seat back frame F2 and the seat back pressure receiving member 50.

[0057] The seat back frame F2 includes left and right lower side frames 22, a pipe frame 23, a lower frame 24, and a bridging frame 25 as a support member. The pipe frame 23 is made of metal pipe and has left and right upper side frames 23A and upper frames 23B that extend to the left and right, connecting the upper ends of the upper side frames 23A. The upper side frames 23A are connected to the lower side frames 22, which are made of sheet metal, and together with the lower side frames 22, they form the seat back side frames 21, which are the left and right frames of the seat back frame F2. A pair of holders 27 that hold the headrest guides 26 are fixed to the upper frame 23B. In addition, a side airbag device SA is fixed to the right seat back side frame 21. The lower frame 24 is made of sheet metal and connects the lower parts of the seat back side frames 21.

[0058] The bridging frame 25 is made of sheet metal and is positioned below the upper frame 23B, connecting the upper parts of the seat back side frames 21. The bridging frame 25 is positioned on the opposite side of the seat pad P from the occupant's side and supports the occupant. More specifically, the bridging frame 25 is positioned on the opposite side of the seat back pad P2 from the occupant's side. Regarding the seat back S2, "occupant's side" corresponds to the front side, and "opposite side from the occupant's side" corresponds to the rear side. In other words, the bridging frame 25 is positioned on the rear side of the seat back pad P2.

[0059] The seatback pressure-receiving member 50 is a plate-shaped member that supports the occupant and is positioned on the rear side of the seatback pad P2. The seatback pressure-receiving member 50 is positioned between the left and right seatback side frames 21, more specifically between the left and right lower side frames 22, and supports the occupant between the left and right seatback side frames 21. The seatback pressure-receiving member 50 has a central support portion 51 and left and right side support portions 52. The side support portions 52 extend diagonally outward and forward from a portion of both the left and right ends of the central support portion 51. The seatback pressure-receiving member 50 is connected to the seatback frame F2 by a connecting wire 59. For example, the lower end of the connecting wire 59 is fixed to the lower frame 24 and the upper end is inserted into a hole (not shown) formed in the bridging frame 25, thereby connecting it to the seatback frame F2, and the seatback pressure-receiving member 50 is connected to the seatback frame F2 via the connecting wire 59 by fastening it to the connecting wire 59 with a cable tie or the like.

[0060] As shown in Figures 5 and 6, the sheet pad P has a suspension groove G and a sheet ventilation passage A. The suspension groove G is a groove for suspending the surface material SK, and includes a first suspension groove G1 formed in the seat cushion pad P1 and a second suspension groove G2 formed in the seat back pad P2.

[0061] As shown in Figure 5, the first suspension groove G1 is a groove for suspending the seat cushion surface SK1, and includes the left and right first longitudinal grooves G11, the first transverse groove G12, and the second transverse groove G13 as the first groove. The first longitudinal grooves G11 are formed between the first central part PC1 and the left and right first side parts PS1, extending in a predetermined direction, which is the front-to-back direction. The first transverse groove G12 and the second transverse groove G13 are formed in the first central part PC1 so as to extend from left to right. The first transverse groove G12 is formed near the center of the first central part PC1 in the front-to-back direction, and the second transverse groove G13 is formed after the first transverse groove G12.

[0062] As shown in Figure 6, the second suspension groove G2 is a groove for suspending the seat back surface SK2, and includes the left and right second longitudinal grooves G21, the third transverse groove G22 as the first groove, and the fourth transverse groove G23. The second longitudinal grooves G21 are formed between the second central part PC2 and the left and right second side parts PS2, extending vertically. The third transverse groove G22 is formed in the second central part PC2 so as to extend in a predetermined left-right direction. The third transverse groove G22 is formed to connect the upper ends of the left and right second longitudinal grooves G21. The fourth transverse groove G23 is formed extending to the left and right in the second central part PC2. The fourth transverse groove G23 is formed below the third transverse groove G22.

[0063] The seat ventilation passage A is formed in the seat pad P. The seat ventilation passage A includes the seat cushion ventilation passage A1 (see Figure 5) formed in the seat cushion pad P1 and the seat back ventilation passage A2 formed in the seat back pad P2.

[0064] As shown in Figure 7, the seat cushion pad P1 is composed of a first pad body 61, a first lower cover 62, and a first upper cover 63. The first pad body 61 has a recess 61A and a vertically penetrating connecting hole 61B in the front part of the first central part PC1 that connects the bottom surface of the recess 61A to the lower side of the seat cushion pad P1. The first lower cover 62 has a vertically penetrating first ventilation channel forming groove 62A. The first upper cover 63 has a plurality of vertically penetrating first ventilation holes 63A.

[0065] The seat cushion pad P1 has a first lower cover 62 positioned in a recess 61A of the first pad body 61, and a first upper cover 63 positioned to cover the first lower cover 62. A seat cushion ventilation passage A1 is formed between the bottom surface of the recess 61A of the first pad body 61 and the first upper cover 63, mainly by the first ventilation passage forming groove 62A of the first lower cover 62. A connecting hole 61B connects the lower side of the seat cushion pad P1 to the seat cushion ventilation passage A1. A first ventilation hole 63A is formed in a position corresponding to the first ventilation passage forming groove 62A when viewed from above, and connects the upper side of the seat cushion pad P1 to the seat cushion ventilation passage A1.

[0066] As shown in Figure 8, the seat back pad P2 is composed of a second pad body 71 and a second cover 72. The second pad body 71 has a recess 71A at the bottom of the second central part PC2, and a bottomed duct engaging portion 71B and a second ventilation channel forming groove 71C formed at the bottom of the recess 71A. The second cover 72 has a plurality of second ventilation holes 72A that penetrate from front to back.

[0067] In the seat back pad P2, the second cover 72 is positioned in the recess 71A of the second pad body 71, so that a seat back ventilation passage A2 is formed between the second pad body 71 and the second cover 72, mainly by the second ventilation passage forming groove 71C. The second ventilation hole 72A is formed in a position corresponding to the second ventilation passage forming groove 71C when viewed from the front, and connects the front side of the seat back pad P2 with the seat back ventilation passage A2.

[0068] Furthermore, the surface material SK covering the seat pad P may have a configuration in which multiple through holes for air passage are located in locations corresponding to the ventilation holes 63A and 72A. Specifically, the seat cushion surface material SK1 covering the seat cushion pad P1 may have multiple through holes in locations facing the first ventilation hole 63A, and the seat back surface material SK2 covering the seat back pad P2 may have multiple through holes in locations facing the second ventilation hole 72A.

[0069] As shown in Figures 5 and 6, the vehicle seat S further includes a vibration generator 80. The vibration generator 80 is a device used to generate vibrations, for example, to inform the seated person of predetermined information or to simulate the feeling of deep bass. In this embodiment, the vibration generator 80 includes a pair of left and right first vibration generators 80A, a pair of left and right second vibration generators 80B, and a pair of left and right third vibration generators 80C.

[0070] As shown in Figure 5, the first vibration generator 80A is positioned in the seat cushion S1. More specifically, the first vibration generator 80A is positioned embedded in the seat cushion pad P1. The first lower cover 62, which constitutes the seat cushion pad P1, has first holes 62B on the left and right sides of its rear end. The first vibration generator 80A is positioned in the first holes 62B and sandwiched between the first pad body 61 and the first upper cover 63. As shown in Figure 4, when viewed from above, the first vibration generator 80A is positioned inside the contour of the seat cushion pressure receiving member 30. When viewed from above, the first vibration generator 80A is positioned between the through hole 34 and the first extended portion 311 of the seat cushion pressure receiving member 30.

[0071] As shown in Figure 6, the vibration generators 80B and 80C are located in the seat back S2. More specifically, the vibration generators 80B and 80C are located embedded in the seat back pad P2. The second pad body 71, which constitutes the seat back pad P2, has a pair of left and right second holes 71D and a pair of left and right third holes 71E at the bottom of the recess 71A. The second holes 71D are formed side by side at the lower end of the second pad body 71, and the third holes 71E are formed side by side near the center in the vertical direction of the second pad body 71. The second vibration generator 80B is located in the second holes 71D, and the third vibration generator 80C is located in the third holes 71E, and is sandwiched between the second pad body 71 and the second cover 72.

[0072] As shown in Figure 1, the air conditioning unit 200 is capable of blowing air out from the seat body S0 on the side facing the seated person. More specifically, the air conditioning unit 200 is capable of blowing air out from the upper surface of the left and right center of the seat cushion S1 through the first ventilation hole 63A, and from the front surface of the left and right center of the seat back S2 through the second ventilation hole 72A. As shown in Figure 7, the air conditioning unit 200 includes a second blower unit 210 and a duct 220.

[0073] The second blower unit 210 is, for example, a sirocco fan and is configured to include an impeller (not shown), a motor for rotating the impeller, and a casing 211 that houses the impeller and motor. The second blower unit 210 rotates the impeller to create an airflow within the duct 220 and the sheet ventilation passages A (A1, A2). Specifically, the second blower unit 210 creates an airflow from the second blower unit 210 through the duct 220 and the sheet ventilation passages A (A1, A2) toward the ventilation holes 63A and 72A.

[0074] As shown in Figure 9, the second blower unit 210 is fixed to the pan frame 14 in a position located below the pan frame 14. The method of fixing the second blower unit 210 is arbitrary. For example, the second blower unit 210 may be fixed to the pan frame 14 directly or via a bracket using screws or the like. Alternatively, it may be fixed by engaging the fixing claws provided on the second blower unit 210 with the pan frame 14. It may also be fixed using cable ties or adhesive.

[0075] The duct 220 connects the second ventilation unit 210 to the sheet ventilation passages A (A1, A2). The duct 220 has a first connecting pipe section 221, a first pipe section 222, a second pipe section 223, a third pipe section 224, a fourth pipe section 225, and a second connecting pipe section 226. The first connecting pipe section 221 is the part that connects to the second ventilation unit 210. The first pipe section 222 extends diagonally backward to the left and right outwards from the rear end of the first connecting pipe section 221, and the second pipe section 223 extends backward from the rear end of the first pipe section 222. The third pipe section 224 extends diagonally backward to the left and right outwards from the rear end of the second pipe section 223, and the fourth pipe section 225 extends backward from the rear end of the third pipe section 224.

[0076] As shown in Figure 7, the second connecting pipe section 226 is the part that connects to the seat cushion ventilation passage A1 and extends upward from the second pipe section 223. The second connecting pipe section 226 is connected to the seat cushion ventilation passage A1 by passing through the right through hole 34 formed in the seat cushion pressure receiving member 30 (see Figure 9) and engaging with the connection hole 61B of the seat cushion pad P1 at its upper end.

[0077] As shown in Figure 8, the duct 220 further comprises a fifth pipe section 227, a sixth pipe section 228, and a third connecting pipe section 229. The fifth pipe section 227 extends upward from the rear end of the fourth pipe section 225. The sixth pipe section 228 is attached to the upper end of the fifth pipe section 227. The sixth pipe section 228 has a flexible section 228A that is pliable. In this embodiment, the flexible section 228A has a bellows shape. The sixth pipe section 228 may be molded integrally with at least one of the fifth pipe section 227 and the third connecting pipe section 229.

[0078] The third connecting pipe section 229 is the part that connects to the seat back ventilation passage A2 and is attached to the upper end of the sixth pipe section 228. As shown in Figures 5 and 6, the duct 220 is connected to the seat back ventilation passage A2 by the third connecting pipe section 229 engaging with the duct engaging section 71B of the seat back pad P2, through a through hole 61C formed in the rear of the seat cushion pad P1 and a groove 71F formed in the lower end of the seat back pad P2.

[0079] As shown in Figure 1, the temperature control device 100 is capable of blowing out temperature-controlled air from the seat body S0 on the side facing the occupant. More specifically, the temperature control device 100 is capable of blowing out temperature-controlled air from the upper surfaces of the left and right sides of the seat cushion S1 through the outlet 121, and also from the front surfaces of the left and right central parts of the seat back S2 through the outlet 121. The surface material SK (SK1, SK2) may have a configuration in which multiple through holes for air passage are located at locations corresponding to the outlet 121. As shown in Figure 10, the temperature control device 100 comprises a first air supply unit 110 and a ventilation bag 120 as a ventilation passage forming member.

[0080] The first ventilation unit 110 is a device capable of blowing temperature-controlled air. The first ventilation unit 110 includes two seat cushion ventilation units 110A and a seat back ventilation unit 110B. Each ventilation unit 110A, 110B is configured, for example, with a blower (not shown), a heat exchanger connected to the blower, and casings 111A, 111B that house the blower and the heat exchanger. The heat exchanger may be a device that has only the function of heating air, or a device that has only the function of cooling air, or a device that has both the function of heating air and the function of cooling air. The heat exchanger can be configured using, for example, a PTC heater or a Peltier element.

[0081] As shown in Figure 9, the seat cushion air blower unit 110A is fixed to the seat cushion pressure receiving member 30 in a position below the seat cushion pressure receiving member 30. The two seat cushion air blower units 110A are arranged side by side. Also, as shown in Figure 12, the seat back air blower unit 110B is fixed to the bridging frame 25 in a position behind the bridging frame 25. The method of fixing the air blower units 110A and 110B is arbitrary. For example, the air blower units 110A and 110B may be fixed to the seat cushion pressure receiving member 30 or the bridging frame 25 directly or via brackets using screws or the like. Alternatively, they may be fixed by engaging the fixing claws provided on the air blower units 110A and 110B with the seat cushion pressure receiving member 30 or the bridging frame 25. They may also be fixed using cable ties or adhesives.

[0082] The ventilation bag 120 is a component that guides air from the first air blowing unit 110 to the seat body S0 on the seated side. As shown in Figure 10, the ventilation bag 120 has an outlet 121 for blowing out air from the first air blowing unit 110. The ventilation bag 120 includes two seat cushion ventilation bags 120A and a seat back ventilation bag 120B.

[0083] Each ventilation bag 120A, 120B has a breathable filler 122 and a bag 123 that covers the filler 122. The filler 122 can be made of, for example, a structure made of fibers that are three-dimensionally woven or intertwined, such as a 3D mesh, or a sponge with open cells. The bag 123 is made of, for example, resin, with one end connected to the first ventilation unit 110 (110A, 110B) and a plurality of air outlets 121 formed at the other end. In the seat cushion ventilation bag 120A, one end of the bag 123 is connected to the corresponding seat cushion ventilation unit 110A below the seat cushion pressure receiving member 30. In the seat back ventilation bag 120B, one end of the bag 123 is connected to the seat back ventilation unit 110B behind the bridging frame 25.

[0084] The seat cushion ventilation bag 120A has multiple outlets 121 and integrally comprises an outlet section 124A that extends approximately front to back and a pipe section 125A that extends from the rear end of the outlet section 124A and is connected to the seat cushion ventilation unit 110A. The seat back ventilation bag 120B also has multiple outlets 121 and integrally comprises an outlet section 124B that is approximately trapezoidal when viewed from the front and a pipe section 125B that extends from the left and right center of the lower end of the outlet section 124B and is connected to the seat back ventilation unit 110B.

[0085] As shown in Figure 11, the left and right first side portions PS1 of the seat cushion pad P1 each have a first recess 64 and a first pad hole 65.

[0086] The first recess 64 is the portion in which the seat cushion ventilation bag 120A is positioned, and is formed on the left and right outer sides of the first longitudinal groove G11 of the first suspension groove G1. As shown in Figure 7, the first recess 64 has a first portion 64A into which the blowing portion 124A of the seat cushion ventilation bag 120A is fitted, and a second portion 64B into which the portion of the tubular portion 125A located on the upper side of the seat cushion pad P1 is fitted. The first portion 64A extends approximately front to back, and the second portion 64B extends downward from the rear end of the first portion 64A. The lower end of the second portion 64B is formed to be recessed outward to the left and right relative to the left and right outer surfaces of the first longitudinal groove G11.

[0087] As shown in Figure 5, the first pad hole 65 is a hole through which the seat cushion ventilation bag 120A passes, and is formed to penetrate from top to bottom. The first pad hole 65 is formed on the same side of the first longitudinal groove G11 as the side where the outlet 121 of the seat cushion ventilation bag 120A is located. More specifically, the first pad hole 65 is formed on the same side of the first longitudinal groove G11 as the side where the first recess 64 is located. Specifically, the first pad hole 65 is formed together with the first recess 64 on the left and right outward relative to the bottom of the first longitudinal groove G11. The first pad hole 65 extends continuously from the lower end of the second portion 64B of the first recess 64 and penetrates towards the bottom of the seat cushion pad P1. When viewed from above, the first pad hole 65 is positioned in a range that overlaps with the first vibration generator 80A in the front-rear direction. In other words, when viewed from above, the first pad hole 65 is positioned to the left and right of the corresponding first vibration generator 80A.

[0088] The tubular portion 125A of the seat cushion ventilation bag 120A passes through the first pad hole 65 from the top to the bottom of the seat cushion pad P1. As shown in Figure 3, the tubular portion 125A that has passed through the first pad hole 65 passes through the placement space SP from the top to the bottom of the seat cushion pressure receiving member 30. The tubular portion 125A that has passed through the first pad hole 65 also passes between the pan frame 14 and the inner cover 40. As shown in Figure 9, the ends of the tubular portion 125A that have passed through the first pad hole 65 and the placement space SP are connected to the corresponding seat cushion ventilation unit 110A on the lower side of the seat cushion pressure receiving member 30.

[0089] As shown in Figure 3, the placement space SP is the space enclosed by one of the left and right seat cushion side frames 11, the pan frame 14, and the seat cushion pressure receiving member 30. More specifically, the placement space SP is the space enclosed by one of the seat cushion side frames 11, the inclined end E3 and rear end E2 of the pan frame side portion 14B of the pan frame 14, and the edge portion 30A of the seat cushion pressure receiving member 30.

[0090] Furthermore, in this embodiment, the placement space SP is surrounded by the seat cushion side frame 11, the pan frame 14, the seat cushion pressure receiving member 30, and the inner cover 40. Specifically, the left placement space SP is surrounded by the left seat cushion side frame 11, the pan frame 14, the left edge 30A of the seat cushion pressure receiving member 30, and the left inner cover 40. The right placement space SP is surrounded by the right seat cushion side frame 11, the pan frame 14, the right edge 30A of the seat cushion pressure receiving member 30, and the right inner cover 40.

[0091] The seat cushion ventilation bag 120A has a penetration portion 120P. The penetration portion 120P is the part of the seat cushion ventilation bag 120A that passes through the placement space SP. The penetration portion 120P is located in a range that overlaps in the longitudinal direction with the portion of the duct 220 that is connected to the seat ventilation passage A. Specifically, the penetration portion 120P is located in a range that overlaps in the front-rear direction with the second connecting pipe portion 226 of the duct 220. In other words, the penetration portion 120P is located so as to be aligned left and right with the second connecting pipe portion 226.

[0092] Furthermore, the through-section 120P is positioned in a range that overlaps with the first vibration generator 80A in the longitudinal direction. Specifically, the through-section 120P is positioned in a range that overlaps with the first vibration generator 80A in the front-to-back direction. In other words, when viewed from above, the through-section 120P is positioned to be aligned left and right with the first vibration generator 80A.

[0093] Furthermore, the through-hole 120P is positioned in the longitudinal direction between one end and the other end of the seat cushion pressure-receiving member 30. Specifically, the through-hole 120P is positioned in the front-rear direction between the front end and the rear end of the seat cushion pressure-receiving member 30. More precisely, the through-hole 120P is positioned behind the front end of the seat cushion pressure-receiving member 30 and in front of the rear end of the seat cushion pressure-receiving member 30.

[0094] Furthermore, the through-section 120P is positioned in the longitudinal direction between the front fastening section 32 and the rear fastening section 33. Specifically, the through-section 120P is positioned in the front-to-rear direction between the front fastening section 32 and the rear fastening section 33. More precisely, the through-section 120P is positioned behind the front fastening section 32 and in front of the rear fastening section 33.

[0095] As shown in Figure 5, the portion of the seat cushion ventilation bag 120A located above the first pad hole 65 is fitted into the first recess 64 and positioned within the first recess 64. The seat cushion ventilation bag 120A forms a part of the inner surface of the first longitudinal groove G11 of the first suspension groove G1. More specifically, the tubular portion 125A of the seat cushion ventilation bag 120A is fitted into the second portion 64B of the first recess 64, and its left and right inner surfaces form a part of the inner surface of the first longitudinal groove G11. Also, as shown in Figure 11, the upper surface of the seat cushion ventilation bag 120A positioned in the first recess 64 is the upper surface of the first side portion PS1 and is flush with the surrounding surface of the first recess 64.

[0096] As shown in Figure 6, the second central portion PC2 of the seat back pad P2 has a second recess 74 and a first pad hole 75.

[0097] The second recess 74 is the portion in which the seat back ventilation bag 120B is positioned, and is formed on the upper side of the third transverse groove G22 of the second suspension groove G2. The second recess 74 has a third portion 74A into which the blowing portion 124B of the seat back ventilation bag 120B is fitted, and a fourth portion 74B into which the portion of the tubular portion 125B located on the front side of the seat back pad P2 is fitted. The third portion 74A is substantially trapezoidal when viewed from the front, and the fourth portion 74B extends downward from the left and right center of the lower end of the third portion 74A, bends, and extends rearward along the upper surface of the third transverse groove G22. The fourth portion 74B is formed to be recessed upward relative to the upper surface of the third transverse groove G22.

[0098] The first pad hole 75 is a hole through which the seat back ventilation bag 120B passes, and is formed to penetrate from the front to the rear. The first pad hole 75 is formed on the same side of the third transverse groove G22 as the side where the air outlet 121 of the seat back ventilation bag 120B is located. More specifically, the first pad hole 75 is formed on the same side of the third transverse groove G22 as the side where the second recess 74 is located. Specifically, the first pad hole 75, together with the second recess 74, is formed on the upper side of the bottom of the third transverse groove G22. The first pad hole 75 extends continuously from the rear end of the fourth portion 74B of the second recess 74 and penetrates toward the rear side of the seat back pad P2.

[0099] As shown in Figure 12, the tubular section 125B of the seat back ventilation bag 120B passes through the first pad hole 75 from the front to the rear of the seat back pad P2. The end of the tubular section 125B that has passed through the first pad hole 75 is connected to the seat back ventilation unit 110B at the rear of the bridging frame 25.

[0100] The portion of the seat back ventilation bag 120B located in front of the first pad hole 75 is fitted into the second recess 74 and positioned within the second recess 74. The seat back ventilation bag 120B forms part of the inner surface of the third transverse groove G22 of the second suspension groove G2. Specifically, the tubular portion 125B of the seat back ventilation bag 120B is fitted into the fourth portion 74B of the second recess 74, and its lower surface forms part of the inner surface of the third transverse groove G22. Furthermore, the front surface of the seat back ventilation bag 120B positioned in the second recess 74 is the front surface of the second central portion PC2 and is flush with the surrounding surface of the second recess 74.

[0101] With the above-described vehicle seat S, the seat cushion ventilation bag 120A passes through the arrangement space SP, which is the space enclosed by the seat cushion side frame 11, the pan frame 14, and the seat cushion pressure receiving member 30. Therefore, compared to, for example, the case where the air passage passes behind the left and right first sides of the seat cushion pad, the seat cushion ventilation bag 120A, which is the air passage, can be arranged more compactly. Furthermore, since the penetration portion 120P of the seat cushion ventilation bag 120A is enclosed by the seat cushion side frame 11, the pan frame 14, and the seat cushion pressure receiving member 30, the seat cushion side frame 11, the pan frame 14, and the seat cushion pressure receiving member 30 can suppress the seat cushion ventilation bag 120A from moving forward or to the sides, and can also protect the seat cushion ventilation bag 120A.

[0102] Furthermore, since the penetration portion 120P of the seat cushion ventilation bag 120A is positioned in a range that overlaps with the second connecting pipe portion 226 of the duct 220 in the front-rear direction, the seat cushion ventilation bag 120A and the duct 220 can be compactly arranged in the front-rear direction. In addition, since the second connecting pipe portion 226 is connected to the seat cushion ventilation passage A1 through the penetration hole 35 of the seat cushion pressure receiving member 30, a part of the seat cushion pressure receiving member 30, specifically the edge portion 30A of the seat cushion pressure receiving member 30, is positioned between the seat cushion ventilation bag 120A and the duct 220. This prevents interference between the seat cushion ventilation bag 120A and the duct 220 due to the seat cushion pressure receiving member 30.

[0103] Furthermore, since the seat cushion ventilation bag 120A passes between the pan frame 14 and the inner cover 40, the seat cushion ventilation bag 120A and the inner cover 40 can be positioned side by side in the front-to-back direction. This allows the seat cushion ventilation bag 120A and the inner cover 40 to be positioned compactly in the left-to-right direction. In addition, the inner cover 40 prevents the seat cushion ventilation bag 120A from moving backward and protects the seat cushion ventilation bag 120A.

[0104] Furthermore, the edge portion 30A of the highly rigid seat cushion pressure receiving member 30, through which the first extended portion 311 of the metal wire 300 passes, can form an arrangement space SP through which the seat cushion ventilation bag 120A passes.

[0105] Furthermore, the bent portions 311A ​​and 311B increase the rigidity of the metal wire 300 near the first extended portion 311, thereby further increasing the rigidity of the edge portion 30A of the seat cushion pressure receiving member 30 that forms the arrangement space SP through which the seat cushion ventilation bag 120A passes.

[0106] Furthermore, since the penetration portion 120P of the seat cushion ventilation bag 120A is positioned in a range that overlaps with the first vibration generating device 80A in the front-to-back direction, the seat cushion ventilation bag 120A and the first vibration generating device 80A can be compactly arranged in the front-to-back direction. Also, since the first vibration generating device 80A is positioned inside the contour of the seat cushion pressure receiving member 30 when viewed from above, the edge portion 30A of the seat cushion pressure receiving member 30 is positioned between the seat cushion ventilation bag 120A and the first vibration generating device 80A. This makes it possible to suppress interference between the seat cushion ventilation bag 120A and the first vibration generating device 80A by the seat cushion pressure receiving member 30.

[0107] Furthermore, since the through-hole 120P is positioned between the front and rear ends of the seat cushion pressure receiving member 30 in the front-rear direction, the seat cushion ventilation bag 120A and the seat cushion pressure receiving member 30 can be compactly arranged in the front-rear direction.

[0108] Furthermore, since the through-hole 120P is positioned between the front fastening portion 32 and the rear fastening portion 33 in the front-rear direction, interference between the seat cushion ventilation bag 120A and the member to which the seat cushion pressure receiving member 30 of the seat cushion frame F1 is hooked can be suppressed. Specifically, interference between the seat cushion ventilation bag 120A and the front frame 12 or the rear frame 13 can be suppressed.

[0109] Furthermore, in the vehicle seat S, the seat cushion ventilation bag 120A passes through the first pad hole 65 from the top to the bottom of the seat cushion pad P1, and the seat back ventilation bag 120B passes through the first pad hole 75 from the front to the rear of the seat back pad P2, allowing the ventilation bags 120, which are air passages, to be compactly arranged. In addition, since the first pad hole 65 of the seat cushion pad P1 is located on the same side as the outlet 121 of the seat cushion ventilation bag 120A with respect to the first vertical groove G11 of the first suspension groove G1, the first vertical groove G11 and the portion of the seat cushion ventilation bag 120A that protrudes from the first pad hole 65 to the top of the seat cushion pad P1 do not intersect, so the seat cushion ventilation bag 120A is less likely to get in the way when the seat cushion surface SK1 is suspended in the first suspension groove G1. Similarly, because the first pad hole 75 of the seat back pad P2 is positioned on the same side as the air outlet 121 of the seat back ventilation bag 120B relative to the third transverse groove G22 of the second suspension groove G2, the third transverse groove G22 and the portion of the seat back ventilation bag 120B that protrudes from the first pad hole 75 to the front of the seat back pad P2 do not intersect. Therefore, when the seat back surface SK2 is suspended in the second suspension groove G2, the seat back ventilation bag 120B is less likely to get in the way.

[0110] Furthermore, since the seat cushion ventilation bag 120A forms part of the inner surface of the first longitudinal groove G11, the seat cushion ventilation bag 120A can be positioned in contact with the first suspension groove G1, allowing the seat cushion ventilation bag 120A to be positioned compactly. Similarly, since the seat back ventilation bag 120B forms part of the inner surface of the third transverse groove G22, the seat back ventilation bag 120B can be positioned in contact with the second suspension groove G2, allowing the seat back ventilation bag 120B to be positioned compactly.

[0111] Furthermore, with respect to the seat cushion S1, a first recess 64 is formed in the first side PS1 of the seat cushion pad P1 where the seat cushion ventilation bag 120A is positioned, so that the seat cushion pad P1 can be made thinner in areas that do not significantly affect the seating feel.

[0112] Furthermore, since the upper surface of the seat cushion ventilation bag 120A positioned in the first recess 64 is the upper surface of the first side portion PS1 and is flush with the surrounding surface of the first recess 64, the shape of the seat cushion ventilation bag 120A is less likely to be visible on the surface of the seat cushion S1. As a result, the seat cushion ventilation bag 120A can be positioned without impairing the design of the vehicle seat S.

[0113] Furthermore, since the first pad hole 65 is positioned in a range that overlaps with the first vibration generating device 80A in the front-rear direction, the portion of the seat cushion ventilation bag 120A that passes through the first pad hole 65 and the first vibration generating device 80A can be compactly arranged in the front-rear direction along which the first longitudinal groove G11 extends.

[0114] Furthermore, with respect to the seat back S2, since the second central part PC2 has a second recess 74 in which the seat back ventilation bag 120B is positioned, temperature-controlled air can be blown out from the left and right central parts of the seat back S2.

[0115] Furthermore, since the front surface of the seat back ventilation bag 120B positioned in the second recess 74 is the front surface of the second side portion PS2 and is flush with the surrounding surface of the second recess 74, the shape of the seat back ventilation bag 120B is less likely to be visible on the surface of the seat back S2. As a result, the seat back ventilation bag 120B can be positioned without compromising the design of the vehicle seat S.

[0116] Furthermore, since the seat cushion air blower unit 110A is fixed to the seat cushion pressure receiving member 30 with the seat cushion air blower unit 110A positioned below the seat cushion pressure receiving member 30, the presence of the seat cushion air blower unit 110A can suppress the feeling of a foreign object in the seat. Similarly, since the seat back air blower unit 110B is fixed to the bridging frame 25 with the seat back air blower unit 110B positioned behind the bridging frame 25, the presence of the seat back air blower unit 110B can suppress the feeling of a foreign object in the seat.

[0117] Although one embodiment has been described above, the vehicle seat can be modified as appropriate, as illustrated below. In the following, the differences from the above embodiment will be described, and for the same points, the same reference numerals will be used for the same components and their descriptions will be omitted as appropriate.

[0118] As shown in Figure 13, the seat cushion S1 of the vehicle seat S according to the first modified example comprises a seat cushion pressure receiving member 130 as a pressure receiving member, four compression coil springs 140 as elastic members, and a plate 150.

[0119] The seat cushion pressure-receiving member 130 is a plate-shaped member that supports the seated person and is positioned below the seat cushion pad P1. The seat cushion pressure-receiving member 130 has a main body portion 131 and left and right extension portions 132. The main body portion 131 is positioned between the left and right seat cushion side frames 11 in the left-right direction. The extension portions 132 extend outward from the left and right ends of the main body portion 131. Specifically, as shown in Figure 14, the extension portions 132 extend to a position where they overlap with the seat cushion side frames 11 when viewed from above. In other words, the extension portions 132 cover a part of the seat cushion side frames 11 from above.

[0120] The seat cushion pressure receiving member 130 further has a through hole 135 that penetrates from the top to the bottom. The through hole 135 is formed in a position that overlaps with the first pad hole 65 formed in the seat cushion pad P1 when viewed from above.

[0121] The plate 150 is a member that elastically supports the seat cushion pressure receiving member 130 via a compression coil spring 140, and is positioned below the seat cushion pressure receiving member 130. The plate 150 is spanned across the left and right seat cushion side frames 11, with its left and right ends fixed to the corresponding seat cushion side frames 11. The left and right ends of the plate 150 may be directly fixed to the seat cushion side frames 11, or they may be fixed via brackets or the like fixed to the seat cushion side frames 11.

[0122] Plate 150 includes a first plate 151 and a second plate 152 positioned behind the first plate 151. The first plate 151 is fixed across the left and right seat cushion side frames 11 near their center in the front-to-back direction. The second plate 152 is fixed across the rear of the left and right seat cushion side frames 11.

[0123] The compression coil spring 140 is positioned between the plate 150 and the seat cushion pressure receiving member 130. The lower end of the compression coil spring 140 is in contact with the plate 150, and the upper end is in contact with the seat cushion pressure receiving member 130.

[0124] The first pad hole 65 formed in the seat cushion pad P1 and the through hole 135 formed in the seat cushion pressure receiving member 130 are positioned differently from the plate 150 (151, 152) when viewed from above. In other words, the first pad hole 65 and the through hole 135 are formed in positions that do not overlap with the plate 150 (151, 152) when viewed from above.

[0125] The seat cushion ventilation bag 120A passes from the top to the bottom of the seat cushion pad P1 through the first pad hole 65 formed in the seat cushion pad P1 and the through hole 135 formed in the seat cushion pressure receiving member 130.

[0126] According to the first modified vehicle seat S, the seat cushion ventilation bag 120A can be arranged even when the plate-shaped seat cushion pressure receiving member 130 that supports the occupant has an extended portion 132.

[0127] Furthermore, since the first pad hole 65 and the through hole 135 are positioned differently from the plate 150 when viewed from above, the seat cushion ventilation bag 120A can be positioned while elastically supporting the seat cushion pressure receiving member 130.

[0128] In the first modified example, a compression coil spring 140 was used as an example of the elastic member, but the elastic member may be a spring other than a compression coil spring, such as a leaf spring. Also, in the second modified example, the plate 150 was configured to include two members, a first plate 151 and a second plate 152, but for example, the plate may be a single member or may be configured to include three or more members.

[0129] As shown in Figure 15, the seat cushion S1 of the vehicle seat S according to the second modified example further comprises a bag member 410, a hose 420, and an intake / exhaust device 430. The bag member 410 can massage the occupant by expanding and contracting, and is positioned between the seat cushion pad P1 and the seat cushion surface SK1. More specifically, the bag member 410 is positioned between the first central part PC1 of the seat cushion pad P1 and the seat cushion surface SK1.

[0130] The bag member 410 is a bag-shaped member formed by overlapping two sheet-like members and bonding their periphery together, for example, by pressing, adhesive, or welding. In this embodiment, the bag member 410 includes a pair of front left and right first bag members 410A and a pair of rear left and right second bag members 410B. The first bag member 410A has a first bag-shaped portion 411 that can expand and contract, and the second bag member 410B has a second bag-shaped portion 412 that can expand and contract.

[0131] The hose 420 is connected to the bag member 410 and allows fluid to flow into and out of the bag member 410. The hose 420 includes a pair of left and right first hoses 421 and a pair of left and right second hoses 422. One end of each first hose 421 is connected to the first bag-shaped portion 411 of the corresponding first bag member 410A, and the other end is connected to the intake and exhaust device 430. One end of each second hose 422 is connected to the second bag-shaped portion 412 of the corresponding second bag member 410B, and the other end is connected to the intake and exhaust device 430.

[0132] The intake and exhaust device 430 is a device that supplies and discharges fluids such as air to the bag member 410, and is configured to include a pump (not shown), a solenoid valve, and a control device that controls the pump and solenoid valve. The intake and exhaust device 430 may be fixed to the pan frame 14 in a position below the pan frame 14, similar to the second blowing unit 210 (see Figure 9), or it may be fixed to the seat cushion pressure receiving member 30 in a position below the seat cushion pressure receiving member 30, similar to the seat cushion blowing unit 110A (see Figure 9).

[0133] The seat cushion pad P1 further includes a bag storage recess 66 and a hose hole 67. The bag storage recess 66 is the portion where the bag member 410 is placed, and is formed to be recessed downward relative to the upper surface of the seat cushion pad P1. The bag storage recess 66 includes a pair of left and right first bag storage recesses 66A where the first bag member 410A is placed, and a pair of left and right second bag storage recesses 66B where the second bag member 410B is placed. The first bag storage recesses 66A are located in front of the first transverse groove G12 of the first suspension groove G1, and are located at both the left and right ends of the upper surface of the first central part PC1. The second bag storage recesses 66B are located between the first transverse groove G12 and the second transverse groove G13 of the first suspension groove G1, and are located at both the left and right ends of the upper surface of the first central part PC1.

[0134] As shown in Figure 16, the hose hole 67 is formed to penetrate from the top to the bottom. The hose hole 67 is formed on the side of the first suspension groove G11 opposite to the side where the first pad hole 65 is located. Specifically, the first pad hole 65 is formed on the left and right outer sides of the first longitudinal groove G11, and the hose hole 67 is formed on the left and right inner sides of the first longitudinal groove G11. Furthermore, the first pad hole 65 is formed in the first side part PS1, and the hose hole 67 is formed in the first central part PC1. The hose hole 67 includes a first hose hole 67A as a second pad hole and a second hose hole 67B (see Figure 15). The first hose hole 67A is formed in a position that sandwiches the first longitudinal groove G11 between it and the first pad hole 65, and is arranged to be aligned left and right with the first pad hole 65 via the first longitudinal groove G11.

[0135] Hose 420 passes through hose hole 67 from the top to the bottom of the seat cushion pad P1. More specifically, the first hose 421 passes through the first hose hole 67A from the top to the bottom of the seat cushion pad P1. Also, the second hose 422 (see Figure 15) passes through the second hose hole 67B from the top to the bottom of the seat cushion pad P1.

[0136] The first bag-shaped portion 411 of the first bag member 410A is positioned on the left and right inner sides, further away from the first longitudinal groove G11 than the first hose hole 67A, when the first bag member 410A is placed in the first bag housing recess 66A. Although not shown in the figures, the second bag-shaped portion 412 of the second bag member 410B is positioned on the left and right inner sides, further away from the first longitudinal groove G11 than the second hose hole 67B, when the second bag member 410B is placed in the second bag housing recess 66B.

[0137] In the second modified vehicle seat S, the seat cushion ventilation bag 120A passes through the first pad hole 65 from the top to the bottom of the seat cushion pad P1, and the first hose 421 passes through the first hose hole 67A. As a result, the seat cushion ventilation bag 120A and the first hose 421 pass through the seat cushion pad P1 with the first longitudinal groove G11 in between. This prevents interference between the seat cushion ventilation bag 120A and the first hose 421.

[0138] Furthermore, since the first bag-shaped portion 411 of the first bag member 410A is positioned further inward and to the left and right from the first longitudinal groove G11 than the first hose hole 67A, interference between the expandable and contractible first bag-shaped portion 411 and the seat cushion ventilation bag 120A, which are positioned on either side of the first longitudinal groove G11, can be suppressed.

[0139] As shown in Figure 17, the vehicle seat S according to the third modified example is equipped with a control unit CU capable of controlling the air conditioning unit 200. The control unit CU has a CPU, ROM, RAM, input / output circuits, etc. (not shown), and controls the second blower unit 210 by executing a pre-stored program. Specifically, the control unit CU controls the rotation and stopping of the impeller (motor) of the second blower unit 210, as well as the rotation speed of the impeller (motor). The control unit CU is fixed to the seat cushion pressure receiving member 30 in a position located below the seat cushion pressure receiving member 30.

[0140] The control unit CU is positioned in the front-to-back direction alongside a portion of the air conditioning unit 200 and the first ventilation unit 110, when viewed from below the vehicle seat S. The front-to-back direction is an example of an orthogonal direction perpendicular to the left-to-right direction. More specifically, the control unit CU is positioned in the front-to-back direction alongside the seat cushion ventilation unit 110A and the second ventilation unit 210, when viewed from below. Furthermore, the control unit CU is positioned between the seat cushion ventilation unit 110A and the second ventilation unit 210, when viewed from below.

[0141] Furthermore, the control unit CU is positioned aligned with the duct 220 in the left-right direction when viewed from below. More specifically, the control unit CU is positioned aligned with the second pipe section 223 of the duct 220 in the left-right direction when viewed from below. In addition, a portion of the control unit CU is positioned aligned with a portion of the duct 220 in the vertical direction. More specifically, the right portion of the front end of the control unit CU is positioned aligned with the first pipe section 222 of the duct 220 in the vertical direction. Moreover, the right portion of the front end of the control unit CU is positioned to overlap with the first pipe section 222 when viewed from below. Furthermore, the control unit CU is positioned above the second pipe section 223.

[0142] In the third modified vehicle seat S, the control unit CU is arranged in a front-to-back direction alongside the first air blower unit 110 and the second air blower unit 210 when viewed from below, so the control unit CU, the air conditioning unit 200, and the seat cushion air blower unit 110A can be compactly arranged in the left-to-right direction.

[0143] Furthermore, since the control unit CU is positioned between the seat cushion air blower unit 110A and the second air blower unit 210, aligned in the front-to-back direction when viewed from below, and aligned with the duct 220 in the left-to-right direction, the control unit CU, the seat cushion air blower unit 110A, and the second air blower unit 210 can be compactly arranged in the left-to-right direction, and the space enclosed by the seat cushion air blower unit 110A, the second air blower unit 210, and the duct 220 can be effectively utilized.

[0144] In the above embodiment, the connecting frame was a pan frame 14 made of sheet metal, but it may also be a frame made of metal pipes, for example.

[0145] In the above embodiment, the seat cushion pressure receiving member 30 was configured such that the second support portion 31B extended outwards to the left and right from a part of both the left and right ends of the first support portion 31A. However, for example, the second support portion may extend outwards to the left and right from the entire left and right ends of the first support portion. Also, the seat cushion pressure receiving member may be a flat plate without the second support portion. Furthermore, in the above embodiment, the seat back pressure receiving member 50 was configured such that the side support portions 52 extended outwards to the left and right from a part of both the left and right ends of the central support portion 51. However, for example, the side support portions may extend outwards to the left and right from the entire left and right ends of the central support portion. Also, the seat back pressure receiving member may be configured without the side support portions.

[0146] In the above embodiment, the seat cushion pressure receiving member 30 served as both a pressure receiving member and a support member, but the pressure receiving member and the support member may be separate members. For example, in the vehicle seat S according to the first modified example shown in Figure 13, the seat cushion air blowing unit 110A may be fixed to the first plate 151 while positioned below the first plate 151. In this case, the first plate 151 is a support member positioned below the seat cushion pad P1 to support the occupant, and is a separate member from the seat cushion pressure receiving member 130, which is a pressure receiving member.

[0147] In the above embodiment, the seat cushion pressure receiving member 30 was configured with a metal wire 300 and a resin covering member 350 that covers the metal wire 300. However, for example, the plate-shaped pressure receiving member may be made of resin only. Alternatively, the plate-shaped pressure receiving member may be made of an elastic material such as an elastomer.

[0148] In the above embodiment, the seat body S0 was configured to include an inner cover 40, but for example, the seat body may be configured not to include an inner cover.

[0149] In the above embodiment, the vehicle seat S was configured to include a vibration generating device 80, but for example, the vehicle seat may be configured not to include a vibration generating device.

[0150] In the above embodiment, the ventilation bag 120 formed a part of the inner surface of the suspension groove G as a ventilation channel forming member. However, for example, a vehicle seat may be configured such that the ventilation channel forming member does not form a part of the inner surface of the suspension groove. That is, the first pad hole through which the ventilation channel forming member passes may be formed at a position away from the first groove when viewed from the seated person's side.

[0151] In the above embodiment, a ventilation bag 120 consisting of a bag 123 containing a breathable filler 122 was exemplified as a ventilation channel forming member. However, for example, the ventilation channel forming member may consist of a discharge unit having an outlet and a duct connecting the discharge unit and the first blower unit, with the duct passing through the first pad hole or the placement space.

[0152] In the above embodiment, the seat cushion had a configuration having left and right side frames, a connecting frame, and a pressure-receiving member that formed an arrangement space through which the ventilation passage forming member passed. However, for example, the seat back may have a configuration having left and right side frames, a connecting frame, and a pressure-receiving member that formed an arrangement space through which the ventilation passage forming member passed. That is, a configuration in which the ventilation passage forming member passes through an arrangement space may be applied to the seat back. Furthermore, a configuration similar to the one applied to the seat cushion S1 in the above embodiment and its modifications may be applied to the seat back, or a configuration similar to the one applied to the seat back S2 in the above embodiment may be applied to the seat cushion.

[0153] In the above embodiment, two seat cushion air blowing units 110A were provided side by side, but for example, a configuration with only one seat cushion air blowing unit may also be provided. Also, in the above embodiment, the first air blowing unit 110 included a seat cushion air blowing unit 110A provided on the seat cushion S1 and a seat back air blowing unit 110B provided on the seat back S2, but for example, the first air blowing unit may be a common unit that blows temperature-controlled air to both the seat cushion and the seat back.

[0154] In the above embodiment, the temperature control device 100 was configured to blow air from both the seat cushion S1 and the seat back S2. However, for example, the temperature control device may be configured to blow air from only the seat cushion, or from only the seat back. The same applies to the air conditioning device.

[0155] In the above embodiment, the air conditioning unit 200 was configured to blow air out from the seat body S0 on the side facing the seated person. However, for example, the air conditioning unit may be configured to draw in air from the seat body on the side facing the seated person. Alternatively, for example, the air conditioning unit may be configured to blow air out from the upper surface of the seat cushion and draw in air from the front surface of the seat back. Conversely, the air conditioning unit may be configured to draw in air from the upper surface of the seat cushion and blow air out from the front surface of the seat back. Furthermore, the vehicle seat may not be equipped with an air conditioning unit.

[0156] In the above embodiment, the moving mechanism SR was configured to allow the seat cushion S1 to move forward and backward relative to the floor of the automobile. However, for example, the moving mechanism may be configured to allow the seat cushion to move left and right relative to the floor of the automobile. Alternatively, for example, the moving mechanism may be configured to allow the seat cushion to move up and down relative to the floor of the automobile. Alternatively, for example, the moving mechanism may be configured to allow the seat cushion to rotate relative to the floor of the automobile. Furthermore, the moving mechanism may include multiple types of moving mechanisms. For example, the moving mechanism may include a first moving mechanism that allows the seat cushion to move forward and backward, and a second moving mechanism that allows the seat cushion to move up and down.

[0157] In the above embodiment, a vehicle seat S installed in an automobile was given as an example of a vehicle seat, but it may also be a vehicle seat installed in vehicles other than automobiles, such as railway cars, ships, aircraft, etc. Furthermore, the above configuration may also be applied to a seat used, for example, in a home.

[0158] The elements described in the above embodiments and modifications may be implemented in any combination. [Explanation of Symbols]

[0159] 11 Seat cushion side frame 14 Pan Frames 30 Seat cushion pressure receiving member 30A edge 32 Front latch 33 Rear latch 34 Through holes 40 Inner Cover 80 Vibration Generator 100 Temperature control device 110 First blower unit 120 ventilated bags 121 Air outlet 122 Filler 123 bags 200 Air conditioning equipment 210 Second blower unit 220 duct 300 Metal wire 311 1st extension part 312 Second extension part 311A 1st bending section 350 Covering member A. Seat ventilation channel F Seat Frame P Seat Pad RL Reclining Mechanism S Vehicle Seat S0 Seat Body S1 Seat Cushion S2 Seatback S3 Headrest SP placement space SR movement mechanism

Claims

1. The seat itself in which a person sits, The seat body is equipped with a temperature control device that allows temperature-controlled air to be blown out from the side facing the occupant, The aforementioned seat body is A seat frame having left and right side frames spaced apart to the left and right, and a connecting frame that connects one end of the left and right side frames in the longitudinal direction, A plate-shaped pressure-receiving member that supports the seated person between the left and right side frames, The aforementioned seat frame and the seat pad covering the pressure-receiving member, Equipped with, The temperature control device is A first blower unit capable of blowing temperature-controlled air, A ventilation channel forming member that guides air from the first air blowing unit to the seat-occupant side surface of the seat body, the ventilation channel forming member having an outlet for blowing out air from the first air blowing unit, Equipped with, The ventilation passage forming member is characterized in that it passes through an arrangement space, which is a space enclosed by one of the left and right side frames, the connecting frame, and the pressure receiving member, from the seated side of the pressure receiving member to the opposite side from the seated side.

2. The seat body is equipped with an air conditioning device that can blow or draw in air from the side facing the seated person, The aforementioned air conditioning system is A second blower unit that forms an airflow, A duct connecting the second air supply unit and the seat ventilation passage formed in the seat pad, Equipped with, The duct is connected to the sheet ventilation passage through a through hole formed in the pressure receiving member. The vehicle seat according to claim 1, characterized in that the portion of the ventilation channel forming member that passes through the arrangement space is arranged in a range that overlaps in the longitudinal direction with the portion of the duct that is connected to the sheet ventilation channel.

3. The seat body is equipped with an inner cover that covers the left and right inner sides of one of the side frames. The seat for a vehicle according to claim 1 or 2, characterized in that the ventilation channel forming member passes between the connecting frame and the inner cover.

4. The pressure-receiving member comprises a metal wire and a non-metallic covering member that covers the metal wire. The vehicle seat according to any one of claims 1 to 3, characterized in that the metal wire has a first extending portion that passes through the edge of the pressure-receiving member, which forms the arrangement space with the one side frame.

5. The first extending portion extends in the longitudinal direction, The vehicle seat according to claim 4, characterized in that the metal wire has a second extending portion extending from the longitudinal end of the first extending portion in one direction to the left or right, and a bent portion formed between the first extending portion and the second extending portion.

6. Equipped with a vibration generating device that generates vibrations, The vibration generating device is positioned inside the contour of the pressure receiving member, as viewed from the seated person's side. The vehicle seat according to any one of claims 1 to 5, characterized in that the portion of the ventilation channel forming member that passes through the arrangement space is arranged in a range that overlaps with the vibration generating device in the longitudinal direction.

7. The portion of the ventilation channel forming member that passes through the arrangement space is positioned in the longitudinal direction between one end and the other end of the pressure receiving member, as described in any one of claims 1 to 6.

8. The pressure-receiving member is A first hooking portion that is hooked onto the seat frame, comprising a first hooking portion formed at one end in the longitudinal direction, A second fastening portion that hooks onto the seat frame, comprising a second fastening portion formed at the other end in the longitudinal direction, It has, The vehicle seat according to claim 7, characterized in that the portion of the ventilation passage forming member that passes through the arrangement space is positioned between the first fastening portion and the second fastening portion in the longitudinal direction.

9. The vehicle seat according to any one of claims 1 to 8, characterized in that the connecting frame is a pan frame made of sheet metal.

10. The ventilation channel forming member is A breathable filler, A bag covering the filler, one end of which is connected to the first air blower unit and the other end of which has the air outlet formed therein, A vehicle seat according to any one of claims 1 to 9, characterized by having the following:

11. The aforementioned seat body is A seat cushion having the left and right side frames, the connecting frame, and the pressure receiving member, The seatback and, Headrest and, Equipped with, Vehicle seats are, A reclining mechanism that rotatably connects the seat back to the seat cushion, A vehicle seat according to any one of claims 1 to 10, further comprising a moving mechanism that makes the seat cushion movable relative to the floor of the vehicle.

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