JPH056823Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a vehicle seat, particularly a device for changing the state of a pressing portion of a seat surface.

[Prior Art] Conventional vehicle seats absorb shock to the occupant and improve ride comfort by supporting the occupant with springs or the like that are horizontally suspended in the frame.

[Problems to be solved by the invention] Conventional vehicle seats are configured as described above, so the position where the passenger contacts the seat surface,
That is, the pressing part of the seat surface against the passenger is always the same, and there is a problem that the riding comfort is not varied and the blood circulation to the buttocks and legs is obstructed.

This idea was made to solve the above problems, and by changing the pressing part of the seat surface,
To obtain a vehicle seat that does not make a passenger feel the same sitting posture.

[Means for Solving the Problems] A vehicle seat according to this invention consists of two frames each having a plurality of receiving members suspended horizontally, and the receiving members of one frame and the receiving member of the other frame are connected to each other. are shifted so that they are arranged alternately,
One end of each frame is rotatably attached to a support shaft, and the other end is connected to a drive mechanism that reciprocates the other end toward the surface of the seat.

[Function] In the vehicle seat according to the present invention, two frames having receiving members arranged alternately are moved in the direction of the seat surface by a drive mechanism, and the receiving members are alternately moved. Or press it on the passenger at the same time and change the part pressed by the passenger.

[Example] An example of this invention will be described below with reference to FIGS. 1 to 3. In the figure, reference numeral 1 denotes a U-shaped first frame in which a plurality of receiving members 1a are horizontally suspended. The other end 1c is connected to a first drive mechanism 5 that reciprocates the other end 1c toward the surface 3a of the seat cushion 3. Reference numeral 2 denotes a U-shaped second frame in which a plurality of receiving members 2a are horizontally suspended. It is rotatably pivoted, and the other end 2c is connected to a second drive mechanism 6 that reciprocates the other end 2c in the direction of the surface 3a of the seat cushion 3. The receiving members 1a and 2a are made of rod-shaped elastic material and are provided parallel to the axis of the support shaft 4. The first frame 1 and the second frame 2 are installed so that their receiving members 1a and 2a alternate and are offset from each other so that they do not intersect with each other. The first drive mechanism 5 and the second drive mechanism 6, as shown in FIG.
b, and gears 5c and 6c rotated by the above output.
and plates 5e and 6e that transmit the outputs of the gears 5c and 6c to opposite sides of the frames 1 and 2 via drive shafts 5d and 6d pivotally mounted on bearings 7 installed on the seat frame (not shown); a link 5f connecting the other ends 1c, 2c of the frames 1, 2 to the gears 5c, 6c and the plates 5e, 6e;
It consists of 6f.

Next, the operation will be explained. The passenger 10 is initially supported by the first frame 1 and pressed against the receiving member 1a. Next, when the passenger 10 feels tired in his buttocks and legs and wants to change the pressing part, he rotates the motors 5a and 6a by operating a switch (not shown) provided near the seat.
Motors 5a, 6a rotate gears 5c, 6c and plates 5e, 6e via gear mechanisms 5b, 6b, and drive links 5f, 6f. The links 5f and 6f cause the first frame 1 to move away from the surface 3a of the seat cushion 3, and the second frame 2 to move closer to the surface 3a of the seat cushion 3, that is, the first frame The frame 2 is moved upward, and the receiving member 2a replaces the receiving member 1a that was initially pressed against the passenger 1.
will be pressed. The passenger 10 does not feel the same sitting posture because the pressing portion of the seat cushion 3 changes. Further, by operating the switch, the first frame 1 and the second frame 2 are moved toward the seat surface 1a side, and the receiving members 1a, 2
A may also press the passenger 10 with both.

In addition, in this embodiment, the above-mentioned receiving member 1
Although the frames a and 2a are made of rod-shaped elastic material, they may be made of a long piece of elastic material, and although the frames 1 and 2 are pivoted on the same support shaft 4, separate support shafts 4 may be provided. You can. Also, the above frame 1,
2 is moved by the links 5f, 6f of the drive mechanisms 5, 6, but the drive mechanisms 5, 6 may have a cam structure or the like to move the frames 1, 2 back and forth in the direction of the surface 3a of the seat cushion 3. Bye.

Further, in this embodiment, the frames 1 and 2 are provided on the seat cushion 3, but they may also be provided on the seat back.

[Effects of the invention] As described above, according to this invention, a vehicle seat is made up of two frames that are alternately aligned and each has a plurality of receiving members horizontally suspended from each other, and each of the above-mentioned frames One end is rotatably pivoted to a support shaft, and the other end is connected to a drive mechanism that reciprocates the other end in the direction of the seat surface, so that the pressing part of the passenger against the seat surface can be changed. , the passengers do not feel the same sitting position and do not get tired.

[Brief explanation of the drawing]

FIG. 1 is an internal perspective view of a vehicle seat which is an embodiment of this invention, FIG. 2 is a partial sectional view, and FIG. 3 is a partial perspective view of the drive mechanism. 1...First frame, 2...Second frame, 1
a, 2a... Receiving member, 3... Seat cushion, 4... Support shaft, 5... First drive mechanism, 6... Second drive mechanism.

Claims (1)

[Scope of utility model registration request] Each frame consists of two frames in which a plurality of receiving members are horizontally suspended, and the receiving members of one frame and the receiving members of the other frame are aligned alternately, and each of the frames has one end attached to a support shaft. What is claimed is: 1. A vehicle seat, characterized in that the vehicle seat is rotatably pivoted to the seat, and the other end is connected to a drive mechanism that reciprocates the other end in a direction toward the surface of the seat.