JP2023106276A - vehicle seat - Google Patents

Abstract

To provide a vehicle seat which can streamline component assembly work in manufacturing of the seat.SOLUTION: A vehicle seat includes a seat frame (a cushion frame 20) serving as a skeleton. The cushion frame 20 comprises: a frame-like body frame; and a support member 30 which spans one portion and the other portion of the body frame in a predetermined direction and supports a seated person. The support member 30 has: a support body part 31 which has a mesh shape and supports the seated person; and a shape retaining member 34 which retains the support body part 31 in an enclosing manner and extends in the predetermined direction to span one portion and the other portion of the body frame. The support member 30 is provided with a planar chuck part 38 for allowing a robot arm to chuck.SELECTED DRAWING: Figure 5

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a seat frame that serves as a skeleton.

Conventionally, a vehicle seat having a cushion frame serving as a skeleton is known.
The cushion frames include, for example, side frames arranged on the left and right sides in the seat width direction, a front connecting frame connecting the front portions of the left and right side frames, and a rear connecting frame connecting the rear portions of the left and right side frames. and a support member (elastic support member) that extends in the seat front-rear direction and is bridged between the front connection frame and the rear connection frame to support the seated occupant from below (see, for example, Patent Document 1). reference).

In the vehicle seat described in Patent Document 1, left and right side frames, a front frame and a rear frame connecting the left and right side frames, and extending in the front-rear direction of the seat and spanning the front frame and the rear frame, the seated person is seated. and a plate-like support member that supports the
The support member includes a plate-shaped resin member having a support surface for supporting a seated person, and a construction member (construction wire) that holds the resin member and is bridged between the front frame and the rear frame. . The bridging member is integrally attached to the bottom surface of the resin member or the inside of the resin member.

JP 2018-161912 A

By the way, in the manufacture of vehicle seats, automation of the assembly work has been demanded in order to improve the efficiency of the assembly work of the component parts.
Then, in the structure of the vehicle seat as disclosed in Patent Document 1, for example, when the support member is assembled to the main body of the cushion frame, a special chuck portion for chucking by the robot arm is not provided, and the assembly work is automated. There was a fear that it would not be possible to deal with

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a vehicle seat capable of streamlining the work of assembling components in manufacturing the seat.
Another object of the present invention is to provide a vehicle seat that is more adaptable to automation of assembly work than conventional ones.

According to the vehicle seat of the present invention, the vehicle seat includes a seat frame that serves as a skeleton, and the seat frame includes a main body frame made of a frame-like body and a seat extending in a predetermined direction in the main body frame. A support member that spans the one portion and the other portion and supports the seated person, the support member has a mesh shape and includes a support body portion that supports the seated person, and the support body portion. a shape-retaining member that is held so as to surround and extends in the predetermined direction and spans the one portion and the other portion of the body frame; is provided with a planar chuck portion for chucking by the robot arm when assembling.
With the above configuration, it is possible to realize a vehicle seat capable of streamlining the work of assembling the components in manufacturing the seat.
Specifically, the support member having a mesh shape is provided with a planar chuck portion for chucking by the robot arm. By doing so, it becomes possible to cope with the automation of the work of assembling the component parts in manufacturing the seat.
If the support member (particularly, the mesh-shaped support member) is chucked as it is, the support member may be deformed. Therefore, unless a chucking portion for chucking by the robot arm is provided, it becomes difficult to automate the assembly work.

At this time, the seat frame includes a cushion frame, and the cushion frame is a front connection that connects front portions of the left and right side frames to side frames that are arranged on the left and right sides in the seat width direction as the main body frame. A frame and a rear connection frame that connects the rear portions of the left and right side frames, the support member is bridged between the front connection frame and the rear connection frame, and the chuck portion has a flat plate shape. and preferably provided on the support surface of the support main body.
With the above configuration, it becomes easy to adapt to the automation of the assembling work by the robot arm in the assembling work of the cushion frame.

At this time, it is preferable that the shape retaining member is a wire-shaped shape retaining wire, and the thickness of the chuck portion is thinner than the thickness of the shape retaining member.
With the above configuration, it is possible to reduce the size of the chuck portion for chucking by the robot arm.

At this time, it is preferable that the chuck portion is arranged at a position adjacent to the shape retaining member on the support body portion.
By arranging the chuck portion at a position adjacent to the shape retaining member as described above, the supporting member can be stably chucked by the robot arm.

At this time, the shape retaining member has an attachment portion attached to the body frame, and the chuck portion is provided on the support body portion and arranged at a position overlapping the attachment portion in the seat width direction. and good.
With the above configuration, when the support member (attachment portion) is attached to the body frame by the robot arm, a load can be efficiently applied to the attachment portion, and the attachment work can be performed efficiently.

At this time, the support body has a mesh shape and has a plurality of mesh-shaped holes penetrating in a direction perpendicular to the support surface of the support body, and the chuck part supports the support member. When viewed from the direction, it is preferably larger than the plurality of mesh-like holes.
Since the chuck portion is formed relatively large as described above, the robot arm can more stably chuck the chuck portion.

At this time, the vehicle seat includes a detection sensor that is attached to the support member and detects the biosignal of the seated person, and the detection sensor does not overlap the chuck portion in the extension direction of the support member. It is good to be placed in the position.
Further, the detection sensor may be arranged at a position not overlapping with the chuck portion in the sheet width direction.
With the above configuration, it is possible to suppress unintentional interference between the robot arm and the detection sensor.

At this time, it is preferable that the chuck portion is mounted on the shape retaining member and extends along the extending direction of the shape retaining member.
With the above configuration, when the support member (shape retaining member) is bridged over the body frame by the robot arm, a load can be efficiently applied to the bridged portion, and the bridge work (assembly work) can be efficiently performed. can be done.

At this time, it is preferable that the chuck portion is attached to the support member and arranged at a position not overlapping the support surface of the support member when viewed from the support direction of the support member.
By arranging the chuck portion at a position that does not overlap with the support surface as described above, it is possible to reduce discomfort when the seated person is seated.

ADVANTAGE OF THE INVENTION According to this invention, the vehicle seat which can improve the efficiency of the assembly|attachment work of component parts in manufacture of a seat is realizable. In addition, it becomes possible to cope with automation of the assembly work of the component parts.
Moreover, according to the present invention, it becomes easy to cope with automation of assembly work by a robot arm.
Further, according to the present invention, the chuck portion for chucking by the robot arm can be made smaller.
Further, according to the present invention, the support member can be stably chucked by the robot arm.
Further, according to the present invention, the mounting work by the robot arm can be efficiently performed.
Moreover, according to the present invention, it is possible to suppress unintentional interference between the robot arm and the detection sensor.
Further, according to the present invention, even if the seat frame is provided with the chuck portion, it is possible to reduce discomfort when the seated person is seated.

1 is an external perspective view of a vehicle seat according to this embodiment; FIG. 1 is a perspective view of a pad material of a vehicle seat; FIG. It is a perspective view of a seat frame. FIG. 10 is a diagram showing a state in which the support member is chucked by the robot arm; It is a top view of a seat frame, a detection sensor, a vibration device, a blower device, and a control device. It is a side view of a seat frame, a detection sensor, a vibration device, a blower device, and a control device. FIG. 4 is a vertical cross-sectional view of the seat frame, showing a state in which the detection sensor is attached to the support member; FIG. 7B is a diagram showing a modification of FIG. 7A; It is a block diagram of a detection sensor, a control device, and a power supply. FIG. 4 is a top view of the seat frame, and is a diagram for explaining the deflection amount when a seating load is applied to the seat frame. FIG. 10 is a top view of the seat frame of the vehicle seat of the second embodiment. It is a vehicle seat of 3rd Embodiment, Comprising: It is a top view of a seat frame and a blower apparatus. It is a figure which shows the state by which the chuck|zipper part was attached to the shape-retaining member. It is a figure which shows the state by which the chuck|zipper part was partially engage|inserted by the shape-retaining member. It is a vehicle seat of 4th Embodiment, Comprising: It is a top view of a seat frame and a blower apparatus.

Embodiments of the present invention will be described below with reference to FIGS. 1 to 13. FIG.
This embodiment is a vehicle seat provided with a seat frame, wherein the seat frame is bridged between a main body frame made of a frame-like body and one part and the other part of the main body frame in a predetermined direction so as to support the seated person. The support member is provided at a position outside the seat width direction from the center support portion for supporting the seated person and the center support portion, and is inclined outward in the seat width direction. The main feature is that it has an extending side support and a shape retaining member extending along the outer edge portion of the side support and spanning one part and the other part of the body frame. It is an invention of a vehicle seat.
The side of the seat back of the vehicle seat on which the occupant sits is the front side of the seat.

<Overall Configuration of Vehicle Seat>
As shown in FIGS. 1 to 8, the vehicle seat S1 of the present embodiment is a vehicle seat, and includes a seat body including a seat back 1 and a seat cushion 2, and a seat body mounted inside the seat body. , a detection sensor 40 for detecting a biological signal of a seated person sitting on the seat body, a vibrating device 45 for imparting vibration to the seated person, a blower device 50 for blowing air toward the seated person, and a detection sensor. and a control device 60 that receives the biomedical signal detected by the device 40 and controls the vibration device 45 and the blower device 50 based on the biomedical signal.
The vehicle seat S1 includes a rail device 70 that supports the seat body so as to be movable back and forth with respect to the vehicle body floor, and a height link device 80 that connects the seat body with the vehicle body floor (rail device 70) so that it can be raised and lowered. , and a reclining device 90 for rotatably connecting the seat back 1 to the seat cushion 2 .
The control device 60 can also control the rail device 70, the height link device 80, and the reclining device 90 based on the biosignals. Also, the biomedical signal can be transmitted to the outside.

As shown in FIG. 1, the seat back 1 is a backrest portion that supports a seated person from behind, and is covered with a skin material 1b by placing a pad material 1a on a back frame 10 shown in FIG. configured as follows.
Inside the seatback 1, as shown in FIG. 2, a vibrating device 45 (an upper vibrating member 45a and a lower vibrating member 45b) and a blower device 50 are arranged.

On the surface of the pad material 1a, as shown in FIG. 2, a first skin hanging groove 1aa for hanging the skin material 1b, a second skin hanging groove 1ab, and an outlet 54 of a blower device 50 are accommodated. An insertion hole 1ac, a concave ventilation hole 1ad through which the air blown from the blowing port 54 passes, and a bag accommodation recess 1ae for accommodating the ventilation bag 58 of the blower device 50 are formed.
In addition, on the surface of the pad material 1a, it is arranged in a region surrounded by the first skin hanging groove 1aa and the second skin hanging groove 1ab, and is formed at intervals in the seat width direction and the vertical direction, and vibrates. A plurality of storage recesses 1af for storing the device 45 are formed.

A plurality of first skin hanging grooves 1aa are formed at intervals in the seat width direction and extend in the vertical direction. A plurality of second skin hanging grooves 1ab are formed at intervals in the vertical direction, extend in the seat width direction, and connect the left and right first skin hanging grooves 1aa.
The insertion hole 1ac is arranged below the side portion of the pad material 1a, and is formed at a position overlapping the first skin hanging groove 1aa.
The ventilation hole 1ad is formed continuously from the insertion hole 1ac and extends while branching upward. Air can be blown out toward the seated occupant over substantially the entire central portion of the seat back 1 through the ventilation hole 1ad.
The bag-accommodating concave portion 1ae is arranged above the pad material 1a. A blowout port (not shown) of the blower device 50 is connected to the bag housing concave portion 1ae.

As shown in FIG. 1, the seat cushion 2 is a seating portion that supports a seated person from below, and is covered with a skin material 2b by placing a pad material 2a on a cushion frame 20 shown in FIG. configured as follows.
Inside the seat cushion 2, as shown in FIGS. 2 and 5, a detection sensor 40, a vibrating device 45 (a front vibrating member 45c and a rear vibrating member 45d), a blower device 50, and a control device 60 are arranged.

As shown in FIG. 2, on the surface of the central portion of the pad material 2a, a first skin hanging groove 2aa, a second skin hanging groove 2ab, a blowout port 53 of a blower device 50, and a circular duct 52 are inserted. through holes 2ac and 2ad, and a concave ventilation hole 2ae for passing the air blown out from the blowing port 53 are formed.
A bag housing recess 2af for housing the ventilation bag 57 of the blower device 50 is formed on the surface of the side portion of the pad material 2a.
In addition, on the surface of the central portion of the pad material 2a, it is arranged in a region surrounded by the first skin hanging groove 2aa and the second skin hanging groove 2ab, and is formed on the left and right sides in the seat width direction, and vibrates. Left and right storage recesses 2ag for storing the device 45 are formed.

A plurality of first skin hanging grooves 2aa are formed at intervals in the seat width direction and extend in the vertical direction. A plurality of second skin hanging grooves 2ab are formed at intervals in the vertical direction, extend in the seat width direction, and connect the left and right first skin hanging grooves 2aa.
The insertion holes 2ac and 2ad are holes that pass through the pad material 2a in the vertical direction. The insertion hole 2ac is arranged in the central portion of the pad material 2a, and the insertion hole 2ad is arranged in the rear position of the side portion of the pad material 2a. Also, the insertion hole 2ad is formed at a position overlapping the first skin hanging groove 2aa.
The ventilation hole 2ae is formed continuously from the insertion hole 2ac and extends while branching toward the front of the seat. Air can be blown out toward the seated occupant over substantially the entire central portion of the seat cushion 2 through the ventilation holes 2ae.
The bag-accommodating concave portion 2af is arranged at the front position of the side portion of the pad material 2a. A blowout port (not shown) of the blower device 50 is connected to the bag housing concave portion 2af.

As shown in FIG. 3, the back frame 10 is composed of a substantially rectangular frame-like body, and has an inverted U shape connecting the back side frames 11 arranged on the left and right sides and the upper end portion of each back side frame 11 . a plate-shaped lower frame 13 that connects the lower end portions of the back side frames 11; member frames 14 that connect the left and right side portions of the upper frame 12; It is mainly composed of a plurality of wire members 15 that are passed over and a plate-like holding member 16 that is held by the plurality of wire members 15 and supports the seated person from behind.
A combination of the left and right back side frames 11, the upper frame 12 and the lower frame 13 corresponds to a "body frame".

The back side frame 11 is a sheet metal member that extends vertically and has a substantially C-shaped cross section.
In the above configuration, the back frame 10 can rotate relative to the cushion frame 20 .

As shown in FIGS. 3 and 5, the cushion frame 20 is formed of a substantially rectangular frame-like body and includes side frames 21 arranged on the left and right sides and extending in the front-rear direction of the seat, and front ends of the side frames 21 . a plate-shaped pan frame 22 that is installed over the parts, a front connection frame 23 that connects the front portions of the side frames 21, a rear connection frame 24 that connects the rear portions of the side frames 21, the front connection frame 23, and It is mainly composed of a plate-like support member 30 that spans the rear connection frame 24 and supports the seated person from below.
A combination of the left and right side frames 21, the pan frame 22, the front connecting frame 23, and the rear connecting frame 24 corresponds to the "body frame".

The side frame 21 is a plate-shaped frame elongated in the seat front-rear direction.
A reclining device 90 is attached to the rear portion of the side frame 21 , and a rail device 70 is attached to the lower portion thereof via a height link device 80 .

The pan frame 22 is a frame that supports the thighs of the seated person, and is composed of a rectangular plate body, and both end portions in the seat width direction are placed and attached to the upper surfaces of the side frames 21 .
A control device 60 is attached to the rear surface of the pan frame 22 .

The front connecting frame 23 and the rear connecting frame 24 are pipe-shaped frames, which connect the left and right side frames 21 and the left and right links of the height link device 80 .
<Support member>
The support member 30, as shown in FIGS. 3 to 5, is a plate-like elastic support member that supports the buttocks of the seated person, and is bridged between the front connection frame 23 and the rear connection frame 24 to support the seated person. It is possible to bend in the vertical direction corresponding to (following) the movement.

The support member 30 has a mesh shape, and has a plurality of mesh-like holes 30a and 30b penetrating in a direction orthogonal to the support surface of the support member 30. As shown in FIG. Specifically, the support member 30 is a mesh-shaped planar body formed of an elastic resin material, and is also called an elastomer panel.
The mesh-like holes 30a and 30b are hexagonal (substantially hexagonal) holes, and the hole 30a is formed to be larger than the hole 30b.
More specifically, the mesh of the support member 30 has a honeycomb shape (honeycomb structure) and is formed so as to partition hexagonal spaces without gaps.
By adopting the honeycomb shape as described above, the support surface of the support member 30 has excellent load distribution and high strength, and is resistant to twisting and torsion and has high rigidity. In addition, since the volume of the mesh is the smallest in three-dimensional space filling with figures of the same volume, weight reduction can be achieved.
The mesh shape of the support member 30 is not particularly limited to the honeycomb shape, and may be, for example, a lattice mesh.

As shown in FIGS. 4 and 5, the support member 30 includes a mesh-like support body portion 31 and a support body portion 31. The support member 30 is held so as to surround the support body portion 31, and extends in the seat front-rear direction to form a front connection frame 23 and a rear connection frame 24. and a planar chuck portion 38 for the robot arm R to chuck.

The support member 30 is integrally formed with a support body portion 31 made of resin and a shape-retaining member 34 made of metal. Although the shape retaining member 34 is attached to the upper surface of the support body 31 , it is not particularly limited, and may be attached to the bottom surface or the side surface of the support body 31 . Alternatively, the shape retaining member 34 may be insert-molded inside the support body portion 31 .

As shown in FIGS. 4 and 5, the support body portion 31 is provided at a position outside the seat width direction of the center support portion 32 that supports the seated person and the center support portion 32, and extends outward in the seat width direction. and a lateral support portion 33 extending obliquely along the edge of the support.
A plurality of through-holes 37 are formed in the support surface of the central support portion 32 so as to extend through the support surface in a direction perpendicular to the support surface.

The central support portion 32 supports the buttocks and thighs of the seated person from below, and the side support portions 33 support the buttocks of the seated person from the sides. Therefore, the support body portion 31 can support the seated person in three dimensions.
The central support portion 32 includes a first central support portion 32a arranged in the central portion of the cushion frame 20, and a position forward of the first central support portion 32a. and left and right second central support portions 32b protruding forward.
The first center support portion 32a supports the buttocks of the seated person, and the left and right second center support portions 32b support the thighs of the seated person.

The side support portions 33 are provided outside the center support portion 32 in the seat width direction, and include a first side support portion 33a extending outward in the seat width direction while being inclined upward, and a first side support portion 33a. It has a second side support portion 33b extending from the portion 33a toward the front side of the seat while being inclined downward and connected to the second central support portion 32b. The first lateral support portion 33a laterally supports the buttocks of the seated person.

As shown in FIG. 4, the central support portion 32 has a mesh-like hole 30a as a whole, and the side support portion 33 has a mesh-like hole 30b as a whole.
The side support portions 33 have a mesh shape that is finer than the mesh shape of the central support portion 32 and are formed to be harder than the central support portion 32 . In other words, the support body 31 is formed to be soft at the position where the load received from the seated person is the largest (lower buttock position), and to be harder at the position (lateral buttock position) where the load is smaller than the lower buttock position. there is
By doing so, the strength of the side support portions 33 can be improved, and the seated person can be stably supported from the sides.
In the present embodiment, the entire support body portion 31 has a mesh shape, but a part of the support body portion 31 may have a mesh shape.

As shown in FIGS. 4 and 5, the shape retaining member 34 is a wire-shaped shape retaining wire, and holds the supporting body 31 so as to surround it. Specifically, it extends along the outer edge portions of the central support portion 32 and the side support portions 33 .
Specifically, the shape retaining member 34 extends forward from the rear end portion of the left side support portion 33 along the outer edge portion of the side support portion 33 to reach the outer edge portion of the left second center support portion 32b. extending along. Then, it extends along the outer edge portion (front end portion) of the first central support portion 32a and along the outer edge portion of the second central support portion 32b on the right side. It extends along the outer edge portion of the right side support portion 33 and extends to the rear end portion of the side support portion 33 .

The shape retaining member 34 has a front attachment portion 35 attached to the front connection frame 23 and a rear attachment portion 36 attached to the rear connection frame 24 .
The front mounting portions 35 are provided on the left and right sides at predetermined intervals in the extending direction of the front connecting frame 23 and are hooked to the front connecting frame 23 from above.
The rear attachment portions 36 are provided on the left and right with a predetermined interval in the extending direction of the rear connection frame 24 and are hooked to the rear connection frame 24 from above.
The front attachment portion 35 and the rear attachment portion 36 are formed as part of the shape retaining member 34 . Therefore, there is no need to newly provide an attachment portion to the support member 30, and an increase in the number of parts can be suppressed.

As shown in FIGS. 4 and 5, the plurality of through holes 37 are provided in a portion of the support surface of the support body portion 31 (central support portion 32) that does not have the hole 30a. penetrates in a perpendicular direction.
The through-holes 37 are provided at two locations on the left and right sides of the central support portion 32, and are provided at positions corresponding to the sit bones of the seated person.
Specifically, the through holes 37 are arranged at positions overlapping the side support portions 33 in the seat front-rear direction, and at positions overlapping the front attachment portions 35 in the left-right direction. In addition, the through hole 37 is arranged behind the front end portion of the first side support portion 33a in the seed front-rear direction.

The through-holes 37 are formed larger than the mesh-like holes 30a of the central support portion 32, as shown in FIG. Generally, the portion of the seat cushion 2 corresponding to the ischial bones of the seated person is subject to the highest seating pressure.
By doing so, the seat pressure of the portion where the seat pressure is the highest in the support member 30 is reduced, and a good seating feeling can be obtained.

As shown in FIGS. 4 and 5 , the chuck portion 38 is a plate-shaped member, and is used for chucking by the robot arm R when the support member 30 is assembled to the cushion frame 20 .
The chuck portion 38 has left and right front chuck portions 38 a provided on the front side of the support surface of the support body portion 31 and left and right rear chuck portions 38 b provided on the rear side of the support surface of the support body portion 31 . ing.

As shown in FIG. 5, the left and right front chuck portions 38a are provided at the front end portions of the left and right second center support portions 32b, respectively, and are arranged at the center positions in the left-right direction.
The front chuck portion 38 a is arranged at a position overlapping the front mounting portion 35 in the left-right direction and at a position adjacent to the shape retaining member 34 .
The left and right rear chuck portions 38b are provided at rear portions of the first center support portion 32a, respectively, and are arranged at outer positions in the left-right direction. In addition, they are arranged at positions close to the left and right side support portions 33, respectively.

As shown in FIGS. 4 and 5 , the chuck portion 38 is formed larger than the plurality of through holes 37 and thinner than the diameter of the shape retaining member 34 .
With the above configuration, the robot arm R can stably chuck the chuck portion 38, and the size of the chuck portion 38 can be reduced.
The chuck part 38 is preferably made of a metal plate having a magnetic material. By doing so, the robot arm R can chuck the support member 30 not by a mechanical chuck or an air chuck, but by an electromagnetic chuck.

In the above configuration, as shown in FIG. 5 , the chuck portion 38 has a flat plate shape and is provided on the support surface of the support body portion 31 .
By doing so, it becomes easy to cope with the automation of the assembly work by the robot arm R in the assembly work of the cushion frame 20 .

In the above configuration, as shown in FIG. 4 , the shape-retaining member 34 is a wire-like shape-retaining wire, and the thickness of the chuck portion 38 is thinner than the thickness of the shape-retaining member 34 .
By doing so, the chuck portion 38 for chucking by the robot arm R can be miniaturized.

In the above configuration, as shown in FIG. 5, the chuck portion 38 is arranged on the support body portion 31 at a position adjacent to the shape retaining member 34 .
By doing so, the support member 30 can be stably chucked by the robot arm R.

In the above configuration, as shown in FIG. 5, the chuck portion 38 is provided on the support body portion 31 and arranged at a position overlapping the front attachment portion 35 in the seat width direction.
By doing so, when the support member 30 (the front attachment portion 35) is attached to the body frame by the robot arm R, a load can be efficiently applied to the front attachment portion 35, and the attachment work can be performed efficiently. .

In the above configuration, as shown in FIG. 5, the chuck portion 38 is larger than the plurality of mesh holes 30a when viewed from the support direction of the support member 30. As shown in FIG.
By doing so, the chuck portion 38 is formed relatively large, so that the robot arm R can chuck the chuck portion 38 more stably.

<Detection sensor>
As shown in FIGS. 5 to 8, the detection sensor 40 is a sheet-like pressure sensor that detects the seating pressure applied to the seating surface of the seat cushion 2 when the occupant sits on the seat. It is attached to the support member 30 via the .
Here, the "seating pressure" is a value that changes periodically according to the physiological activity of the seated person, specifically, breathing, when the seated person is seated on the seat cushion 2, and is detected by a pressure sensor. is the target value. That is, it corresponds to the "biological signal (biological information) of the seated person".
It should be noted that the detection sensor 40 is preferably a seating sensor that turns on or off according to the seating pressure of the seated person. Preferably, it is a push switch type seating sensor. It also detects the seating pressure and outputs a detection signal based on the detection result of the seating pressure.

The detection sensor 40 has a sensor detection section 41 for detecting the seating pressure of the seated person, and a transmission path 42 for outputting a detection signal when the sensor detection section 41 detects the seating pressure.
The sensor detection part 41 is a pressure sensitive switch adhered on the conductive sheet.
The transmission line 42 is formed by bonding a conductive line serving as a transmission line onto a conductive sheet. The transmission path 42 extends forward from the sensor detection portion 41 and is electrically connected to the connection member 43 .
As shown in FIG. 6 , the connection member 43 is a wire harness formed by bundling conductive wires, and connects the detection sensor 40 and the control device 60 .

The detection sensor 40 is attached to the support member 30 (shape retaining member 34 ) via the sensor attachment portion 44 . The sensor mounting portion 44 is a plate-like member and is formed integrally with the shape retaining member 34 .
The sensor attachment portion 44 is arranged in the central support portion 32 at a position forward of the first central support portion 32a and is attached between the left and right second central support portions 32b.

As shown in FIG. 7A, the sensor mounting portion 44 is formed integrally with the shape retaining member 34 at the center portion of the shape retaining member 34 in the vertical direction.
As a modification of the above, the sensor attachment portion 44 may be integrally attached to the upper surface of the shape retaining member 34 as shown in FIG. 7B.

The detection sensor 40 is arranged outside the support member 30 in the area surrounded by the cushion frame 20, as shown in FIGS. Specifically, the detection sensor 40 is arranged between the plurality of through holes 37 in the left-right direction, and is arranged forward of the first central support portion 32a.
Further, the detection sensor 40 is arranged between the left and right front attachment portions 35 and is arranged behind the front attachment portion 35 .

As shown in FIG. 5, the front chuck portions 38a are arranged at the front end portions of the left and right second center support portions 32b, and are arranged at the center side end portions of the seat.
The rear chuck portions 38b are arranged at the rear end portion of the first central support portion 32a and are arranged at positions close to the side support portions 33, respectively.
Therefore, the detection sensor 40 is arranged at a position that does not overlap the chuck portion 38 in the front-rear direction and the left-right direction.

In the above configuration, as shown in FIG. 5 , the detection sensor 40 is arranged at a position not overlapping the chuck portion 38 in the extension direction of the support member 30 .
Further, the detection sensor 40 is preferably arranged at a position not overlapping with the chuck portion 38 in the sheet width direction.
By doing so, unintentional interference between the robot arm R and the detection sensor 40 can be suppressed.

<Vibration device>
The vibrating device 45, as shown in FIGS. 2, 5, and 6, corresponds to a drive unit that applies physical force to the seated person. Specifically, it receives a signal from the control device 60 and starts vibrating. It is a device equipped with a vibrating motor.
The vibrating device 45 has an upper vibrating member 45 a and a lower vibrating member 45 b provided on the back frame 10 and a front vibrating member 45 c and a rear vibrating member 45 d provided on the cushion frame 20 .
The vibrating members 45a and 45b can provide stimulation to the back of the seated person, and the vibrating members 45c and 45d can provide stimulation to the buttocks of the seated person.

As shown in FIG. 5, the front vibrating member 45c is arranged at a position overlapping the second central support portion 32b when viewed from above. The rear vibration member 45 d is arranged at a position close to the rear mounting portion 36 in the rear connection frame 24 .
Note that the detection sensor 40 is arranged between the plurality of through holes 37 in the left-right direction. Therefore, the detection sensor 40 is arranged at a position not overlapping the front vibrating member 45c and the rear vibrating member 45d.

As shown in FIG. 6, the front vibrating member 45c is arranged at a position overlapping the second central support portion 32b in the front-rear direction. The rear vibration member 45d is arranged at a position overlapping the rear mounting portion 36 in the front-rear direction.
The detection sensor 40 is arranged in front of the first central support portion 32a and behind the front attachment portion 35 in the front-rear direction. Therefore, the detection sensor 40 is arranged at a position overlapping with the front vibrating member 45c, but arranged at a position not overlapping with the rear vibrating member 45d.

<Blower device>
The blower device 50 is attached to the cushion frame 20 as shown in FIGS. The blower device 50 includes a blower body 51 for blowing air, a duct 52 for passing air, blowing ports 53 and 54 for blowing air toward the seated person, a heat exchange device 55 for adjusting the temperature of the air, It has a temperature reducing device 56 for reducing heat, vibration and noise, and ventilating bags 57 and 58 for allowing the air whose temperature is adjusted by the heat exchange device 55 to flow in and out.

The blower main body 51 is configured to blow air from the blower main body 51 through the duct 52 toward the seated occupant from outlets 53 and 54 .
The duct 52 is connected to the blower body 51 and allows the air from the blower body 51 to pass therethrough. The duct 52 extends rearward from the blower body 51 along the cushion frame 20 and also extends upward along the back frame 10 .
The air outlets 53 and 54 are air outlets for blowing air toward the seated person, and penetrate through the ventilation holes 1ad and 2ae of the pad materials 1a and 2a.

The heat exchange device 55 is a device that cools or heats the air circulating through the duct 52 and adjusts the temperature of the support surface of the seated person, and is provided below the support member 30 .
The temperature reducing device 56 is a device for reducing high heat, vibration and noise generated by the heat exchanging device 55 and is installed above the heat exchanging device 55 .

The ventilating bags 57 and 58 swell when air is sealed therein, heat or cool the body of the seated person, and are connected to the heat exchange device 55 .
The ventilating bag 57 is housed in the bag housing concave portion 2af provided in the side portion of the pad material 2a, and heats or cools the seated person's buttocks and thighs.
The ventilation bag 58 is housed in a bag housing recess 1ae provided on the surface of the central portion of the pad material 1a, and heats or cools the back of the seated person.

As shown in FIG. 5, the blower body 51 is arranged in front of the first central support portion 32a. The outlet 53 of the duct 52 is arranged at a position overlapping the left second central support portion 32b in top view. The heat exchange device 55 and the temperature reducing device 56 are arranged at positions overlapping the through holes 37 when viewed from above. The ventilation bag 57 is arranged outside the first central support portion 32a.
Note that the detection sensor 40 is arranged between the plurality of through holes 37 in the left-right direction. Therefore, the detection sensor 40 is arranged at a position overlapping the blower main body 51 , the heat exchange device 55 and the temperature reducing device 56 in the left-right direction, but not overlapping the outlet 53 of the duct 52 and the ventilation bag 57 .

As shown in FIG. 6 , the blower body 51 is arranged forward of the front mounting portion 35 . The outlet 53 of the duct 52 is arranged at a position overlapping the second central support portion 32b in the front-rear direction. The heat exchange device 55 and the temperature reducing device 56 are arranged at positions overlapping the side support portions 33 in the front-rear direction. The ventilation bag 57 is arranged at a position overlapping the second central support portion 32b in the front-rear direction.
The detection sensor 40 is arranged in front of the first central support portion 32a and behind the front attachment portion 35 in the front-rear direction. Therefore, the detection sensor 40 is arranged at a position overlapping the outlet 53 of the duct 52 and the ventilation bag 57 in the front-rear direction, but not overlapping the blower main body 51 , the heat exchange device 55 and the temperature reducing device 56 .

<Control device>
The control device 60, as shown in FIGS. 5, 6, and 8, is a device that processes biological signals detected by the detection sensor 40, and is attached to the bottom surface of the pan frame 22 via a holder (not shown). ing. Control device 60 is electrically connected to detection sensor 40 by connection member 43 extending from detection sensor 40 . The connection between the control device 60 and the detection sensor 40 is not limited to wired communication using the connection member 43, and may be wireless communication.
The control device 60 includes a communication section 61 for receiving the biological signal detected by the detection sensor 40 and for wireless transmission to the outside, and a control section 62 for performing processing based on the biological signal detected by the detection sensor 40. ,have.

The communication unit 61 uses wireless communication technology to connect to an external terminal such as a tablet terminal, a smartphone, a computer such as a PC, or an electrical device, and transmits and receives an electrical signal (data signal).
The control unit 62 corresponds to a microcomputer and comprehensively executes electrical control.
The control device 60 is supplied with power from a power source P mounted in the vehicle.
Note that the control device 60 may be attached inside the vehicle seat S or may be attached outside the vehicle seat S.

In the above configuration, the control device 60 is connected to the vibrating device 45 via a network, and vibrates the vibrating device 45 based on the biological signal detected by the detection sensor 40, thereby notifying the seated person of wearing the seatbelt. to control.
In addition, the control device 60 is connected through a network to a safety device such as a seatbelt device (not shown) and a movable device that moves a part or all of the seat body, thereby transmitting an operation signal to these devices. can be done.

In the above configuration, for example, the control device 60 is connected to a known heartbeat measuring device (not shown) through a network, so that the heartbeat measuring device can detect heartbeat signals (heartbeat information) and respiratory signals (breathing information) of the seated person. It is possible to measure the heartbeat of the seated person and quickly notify the seated person when an abnormality occurs in the heartbeat change.

In addition, the "type of detection sensor" can be changed according to the request of the seated person, and the "output function" based on the biological information detected by the detection sensor can also be changed.
Specifically, in addition to the pressure sensor, a capacitance sensor, a temperature sensor, a sound sensor, an optical sensor, an odor sensor, or the like may be employed.
In addition, as an "output function", changes in the heart rate of the seated person are measured to notify the seated person of abnormal heartbeats (drowsiness), as well as to measure the seating posture of the seated person and control the seat movement. It is assumed that a relaxation mode or a skeleton correction mode will be produced, and a game or image will be produced for the seated person based on the biological information of the seated person (e.g., electrocardiogram, blood pressure, body temperature, breathing, etc.).
In that case, the biological information obtained by the detection sensor may be used by a dedicated application downloaded to the portable terminal of the seated person.

As shown in FIG. 9, the magnitude relationship of the deflection amounts of the support areas A1 to A3 when the seating load is applied to the cushion frame 20 is A1>A2>A3. The support member 30 is formed so that each of the support areas A1 to A3 has a different deflection amount, thereby stably supporting the seated person.
Therefore, it is possible to realize a vehicle seat that can favorably receive the load of the seated person.

<Second embodiment>
Next, the vehicle seat S2 of the second embodiment will be described with reference to FIG.
In addition, the description of the content that overlaps with the vehicle seat S1 described above is omitted.
The vehicle seat S2 of the second embodiment differs from the vehicle seat S1 mainly in the configuration of the mounting portions 135 and 136 of the support member 130 and the chuck portion 138. As shown in FIG.

As shown in FIG. 10 , the support member 130 has a mesh-like support body portion 131 and a shape that surrounds and holds the support body portion 131 , extends in the lateral direction of the seat, and spans between the left and right side frames 121 . A holding member 134 and a planar chuck portion 138 for chucking by the robot arm R are provided.

The shape retaining member 134 has a front attachment portion 135 attached to the front connection frame 123 and a rear attachment portion 136 attached to the rear connection frame 124 .
The front attachment portions 135 are provided on the left and right sides of the support body portion 131 , are inserted from above into insertion holes formed on the front side of the upper end flanges of the side frames 121 , and are hooked to the side frames 121 .
The rear attachment portions 136 are provided on the left and right sides of the support body portion 131 , are inserted from above into insertion holes formed in the upper end flanges of the side frames 121 on the rear side, and are hooked to the side frames 121 .

Even in the above-described embodiment, there is no need to separately provide an attachment member for attaching the support member 130 to the side frame 121, and an increase in the number of parts can be suppressed.
In addition, since the support member 130 can be attached to the cushion frame 120 not only in the front-rear direction but also in the left-right direction, it can be attached to various types of cushion frames 120 .

As shown in FIG. 10, the chuck portions 138 are provided on the shape retaining members 134 outside the left and right side support portions 133, respectively, and are arranged at positions overlapping the plurality of through holes 137 in the front-rear direction. .
Even in the above embodiment, the robot arm R can stably chuck the chuck portion 138 .

<Third Embodiment>
Next, the vehicle seat S3 of the third embodiment will be described with reference to FIGS. 11, 12A and 12B.
The description of the content overlapping with the vehicle seats S1 to S2 described above will be omitted.
The vehicle seat S3 of the third embodiment differs from the vehicle seats S1 and S2 mainly in the configuration of the chuck portion 238 and the compression spring 239 of the support member 230 .

As shown in FIG. 11, the chuck portions 238 include left and right front chuck portions 238a provided on the shape retaining member 234 of the support member 230 and left and right rear chuck portions 238b provided on the rear side of the support surface of the support member 230. and a central chuck portion 238 c provided in front of the support surface of the support member 230 .

The front chuck portions 238a are provided on the left and right front mounting portions 235, respectively, as shown in FIG.
The rear chuck portions 238b are provided at the rear end portions of the first central support portion 232a, respectively, and are arranged at positions separated from the left and right side support portions 233 by a predetermined distance.
The central chuck portion 238c is arranged in front of the first central support portion 232a and the detection sensor 240, and is attached between the left and right second central support portions 232b.
The front chuck portion 238a and the central chuck portion 238c are arranged at positions that do not overlap the support surface of the support member 230 in the vertical direction.

As shown in FIG. 12A, the front chuck portion 238a has a flat plate shape that is thinner than the diameter of the shape retaining member 234. As shown in FIG. The front chuck part 238a is arranged to extend along the extending direction of the shape retaining member 234 and attached to both sides of the shape retaining member 234 in the vertical direction.
The central chuck portion 238c has a flat plate shape that is thinner than the diameter of the shape retaining member 234, as shown in FIG. 12B. The central chuck portion 238c is attached while being partially fitted in the shape retaining member 234 .

Even in the above embodiment, the robot arm R can stably chuck the chuck portion 238, and the chuck portion 238 can be miniaturized.

As shown in FIG. 11, the compression springs 239 elastically restrain the horizontal movement of the support surface of the support member 230 and are provided at the front, rear, left, and right corners of the cushion frame 220 .
The compression spring 239 is arranged at a position not overlapping the support member 230 (the shape retaining member 234 and the chuck portion 238), the detection sensor 240 and the blower device 250 in the vertical direction.
The support member 230 is attached to the cushion frame 220 while being elastically supported from below via four compression springs 239 .

By providing a plurality of compression springs 239 as described above, even if a lateral inertial force is applied to the seated person while the vehicle is running, the head of the seated person is prevented from swinging sideways. It is possible to stabilize the line of sight of the seated person.

With the above configuration, the compression spring 239 is arranged at a position avoiding the shape retaining member 234 and abuts against the flat support surface of the support body portion 231 , thereby stably supporting the support member 230 .
In addition, by arranging the compression spring 239 at a position away from the detection sensor 240, malfunction of the detection sensor 240 can be suppressed.

With the above configuration, the compression spring 239 is arranged at a position that avoids the duct 252 , thereby preventing the compression spring 239 from interfering with the duct 252 .
In addition, by arranging the compression spring 239 at a position away from the chuck portion 238, it is possible to prevent the compression spring 239 from interfering with the chuck portion 238 when the robot arm R chucks the support member 230. .

In the above configuration, as shown in FIG. 11, the chuck portion 238 is attached on the shape retaining member 234 and extends along the direction in which the shape retaining member 234 extends.
By doing so, when the support member 230 (shape retaining member 234) is bridged over the body frame by the robot arm R, a load can be efficiently applied to the bridged portion, and the bridge work (assembly work) can be performed. can be done efficiently.

In the above configuration, as shown in FIG. 11, the chuck portion 238 is attached to the support member 230 and arranged at a position not overlapping the support surface of the support member 230 when viewed from the support direction of the support member 230. .
By doing so, the chuck portion 238 is arranged at a position that does not overlap with the support surface, so that discomfort when the seated person is seated can be reduced.

<Fourth Embodiment>
Next, the vehicle seat S4 of the fourth embodiment will be described with reference to FIG.
Descriptions of the same content as those of the vehicle seats S1 to S3 described above will be omitted.
The vehicle seat S4 of the fourth embodiment differs from the vehicle seats S1 to S3 mainly in the configuration of the compression springs 339 .
As shown in FIG. 13, the compression spring 339 is arranged at a position overlapping the support member 330 (shape retaining member 334) in the vertical direction, and arranged at a position not overlapping with the detection sensor 340 and the blower device 350 (duct 352). there is
The support member 330 is attached to the cushion frame 320 while being elastically supported from below via four compression springs 339 .

With the above configuration, the cushion frame 320 is equipped with a plurality of compression springs 339, so that even if a lateral inertial force acts on the seated person while the vehicle is running, the head of the seated person is prevented from moving laterally. Shaking can be appropriately suppressed, and the line of sight of the seated person can be stabilized.

In the above configuration, the compression spring 339 is arranged at a position overlapping the shape retaining member 334 in the vertical direction, and is in contact with the shape retaining member 334 having higher rigidity than the supporting body portion 331 . By doing so, the support member 330 can be stably supported.
Also, the compression spring 339 is arranged at a position away from the detection sensor 340 . By doing so, malfunction of the detection sensor 340 can be suppressed.
Also, the compression spring 339 is arranged at a position avoiding the duct 352 . By doing so, it is possible to prevent the compression spring 339 from interfering with the duct 352 .

<Other alternative embodiments>
In the above embodiment, as shown in FIG. 3, the vehicle seat S1 includes the rail device 70, the height link device 80, and the reclining device 90, but there is no particular limitation.
That is, the vehicle seat S<b>1 does not have to include the rail device 70 , the height link device 80 and the reclining device 90 .

In the above embodiment, the support member 30 is attached to the cushion frame 20 as shown in FIG.

In the above-described embodiment, as shown in FIG. 3, the side support portions 33 extend while being inclined toward the seated person. good. Alternatively, the side support portions 33 may not tilt when the seated person is not seated, but may tilt when the support surface of the support member 30 bends when the seated person is seated.

In the above-described embodiment, as shown in FIG. 5 , the hardness of the peripheral portion of the shape retaining member 34 to which the detection sensor 40 is attached is lower than that of the left and right ends and the front end of the shape retaining member 34 . there is However, there is no particular limitation, and the entire shape retaining member 34 may be formed with the same hardness.

In the above embodiment, as shown in FIG. 6, the outlet 53 of the duct 52 is arranged so as not to protrude upward from the support surface of the support member 30, but is not particularly limited.
For example, the blowout port 53 may protrude upward from the through hole of the support member 30 .

In the above-described embodiment, a vehicle seat used in an automobile was described as a specific example, but the present invention is not particularly limited to a two-wheeled vehicle seat, a vehicle seat for a train or a bus, or a vehicle seat for an airplane, a ship, or the like. In addition, it can be used for various seats such as office chairs for work, wheelchairs, and children's chairs for shopping carts.

In this embodiment, the vehicle seat according to the present invention has been mainly described.
However, the above embodiment is merely an example for facilitating understanding of the present invention, and does not limit the present invention. The present invention can be modified and improved without departing from its spirit, and the present invention includes equivalents thereof.

S1 to S4 Vehicle seat Sa Seat frame 1 Seat back 1a Pad material 1aa First skin hanging groove 1ab Second skin hanging groove 1ac Blower accommodation recess 1ad Ventilation hole 1ae Bag accommodation recess 1af Storage recess 1b Skin material 2 Seat cushion 2a Pad material 2aa First skin hanging groove 2ab Second skin hanging groove 2ac, 2ad Insertion hole 2ae Ventilation hole 2af Bag accommodation recess 2ag Storage recess 2b Skin material 10 Back frame 11 Back side frame (side frame)
12 upper frame 13 lower frame 14 connecting frame 15 wire member 16 holding member 20, 120, 220, 320 cushion frame 21, 121 cushion side frame (side frame)
22 Pan frames 23, 123 Front connecting frames 24, 124 Rear connecting frames 30, 130, 230, 330 Support members 30a, 30b Holes 31, 131, 231, 331 Support main body 32 Central support 32a, 232a First central support 32b, 232b Second central support portions 33, 133 Side support portions 33a First side support portions 33b Second side support portions 34, 134, 234, 334 Shape retaining member (shape retaining wire)
35, 135, 235 Front mounting parts 36, 136 Rear mounting parts 37, 137 Through holes 38, 138, 238 Chuck parts 38a, 238a Front chuck parts 38b, 238b Rear chuck parts 239, 339 Compression springs 40, 240, 340 Detection sensor (seating sensor)
41 sensor detection unit 42 transmission line (conductive line)
43 connection member (harness)
44 sensor mounting portion 45 vibrating device 45a upper vibrating member 45b lower vibrating member 45c front vibrating member 45d rear vibrating member 50, 250, 350 blower device 51 blower main bodies 52, 252, 352 ducts 53, 54 outlet (air outlet)
55 heat exchange device 56 temperature reducer 57, 58 ventilation bag 60 control device 61 control unit 62 communication unit 70 rail device 80 height link device 90 reclining device P power supply R robot arm

Claims (10)

A vehicle seat having a seat frame serving as a skeleton,
The seat frame is
a body frame made up of a frame-like body;
a support member that spans one portion and the other portion in a predetermined direction in the body frame and supports a seated person,
The support member is
a support main body having a mesh shape and supporting the seated person;
a shape-retaining member that surrounds and holds the support main body portion, extends in the predetermined direction, and bridges the one portion and the other portion of the main body frame;
A vehicle seat, wherein the support member is provided with a planar chuck portion for chucking by a robot arm when the support member is assembled to the body frame. The seat frame includes a cushion frame,
The cushion frame includes side frames arranged on left and right sides in the width direction of the seat as the body frame, a front connection frame connecting front portions of the left and right side frames, and rear portions of the left and right side frames. a rear coupling frame for
The support member spans the front connection frame and the rear connection frame,
2. The vehicle seat according to claim 1, wherein the chuck portion has a flat plate shape and is provided on the support surface of the support body portion. The shape-retaining member is a wire-shaped shape-retaining wire,
3. The vehicle seat according to claim 1, wherein the thickness of the chuck portion is thinner than the thickness of the shape retaining member. 4. The vehicle seat according to any one of claims 1 to 3, wherein the chuck portion is arranged on the support body portion at a position adjacent to the shape retaining member. The shape retaining member has an attachment portion attached to the body frame,
The chuck part is
provided on the support body,
The vehicle seat according to any one of claims 1 to 4, wherein the vehicle seat is arranged at a position overlapping with the attachment portion in the seat width direction. The support body has a mesh shape, and has a plurality of mesh-shaped holes penetrating in a direction perpendicular to the support surface of the support body,
The vehicle seat according to any one of claims 1 to 5, wherein the chuck portion is larger than the plurality of mesh holes when viewed from the support direction of the support member. The vehicle seat includes a detection sensor attached to the support member and detecting a biological signal of the seated person,
The vehicle seat according to any one of claims 1 to 6, wherein the detection sensor is arranged at a position not overlapping with the chuck portion in the extending direction of the support member. 8. The vehicle seat according to claim 7, wherein the detection sensor is arranged at a position not overlapping with the chuck portion in the seat width direction. The vehicle seat according to any one of claims 1 to 8, wherein the chuck portion is attached on the shape retaining member and extends along the extending direction of the shape retaining member. The chuck part is
attached to the support member;
10. The vehicle seat according to any one of claims 1 to 9, wherein the seat is arranged at a position not overlapping the support surface of the support member when viewed from the support direction of the support member.