JP6926898B2 - Seating seat - Google Patents

Description

The present invention relates to a seat for a vehicle such as an automobile, an airplane, a ship, a train, or a movie theater.

Various techniques have been proposed for adjusting the shape of the seat so as to match the difference in physique and body shape of each seated person. Further, for automobile seats, a technique for adjusting the shape of the seat according to the driving mode of the automobile such as sports mode and normal mode has also been proposed. Patent Document 1 proposes a sheet for dealing with differences in physique. The technique of Patent Document 1 adjusts the position of the side support in the seat cushion or the seat back in the width direction according to the physique of the seated person.

Japanese Unexamined Patent Publication No. 2015-3532

However, the technique of Patent Document 1 only adjusts the position of the side support in the width direction and does not adjust other parts. Therefore, although a part of the difference in the physique of the seated person is adjusted, the difference in the entire physique is adjusted. There is a problem that cannot be adjusted for.

An object of the present invention is to obtain an appropriate seating surface shape according to the usage situation of the seat by making it possible to adjust not only a part of the seating surface but also the entire seating surface having a seating surface for supporting the seated person. There is.

The seating seat of the first invention of the present invention is provided with a plurality of stretchable bodies arranged in a matrix so as to form a seating surface that supports the seated person, and the tip of each stretchable body is along the seating surface. The base end portion is supported by the support member of the seating seat so as to be positioned, and the base end portion and the tip end portion are expanded and contracted.

In the first invention, the seating surface is one or both of the seat cushion forming the seat portion and the seat back forming the backrest. The stretchable body can be configured by a stretchable rod, a link mechanism, or the like. The shape of the seating surface may be changed according to the physique of the seated person, or may be changed according to the preference of the seated person and the driving mode of the automobile.

According to the first invention, a plurality of stretchable bodies forming the seating surface expand and contract, so that the seating surface formed by the tip end portion of the stretchable body has an appropriate shape. Therefore, not only a part of the seating surface but the entire seating surface can be adjusted.

In the second aspect of the present invention, in the first invention, the tip of each stretchable body is covered with a cover body, and the cover body is fixed to the tip of the stretchable body with an elastic body sandwiched between them. ing.

In the second invention, the cover body may be configured to cover the tip portions of the stretchable bodies individually, or may be configured to cover the tip portions of a plurality of stretchable bodies together. In the latter configuration, it is necessary to configure the cover body so as not to interfere with the expansion / contraction operation of each expansion / contraction body.

According to the second invention, the tip end portion of the stretchable body is covered with a cover body accompanied by an elastic body. Therefore, the seating feeling can be softened as compared with the case where the seated person directly touches the tip portion of the stretchable body. Further, the material of the cover body can reduce the frictional resistance with the seated person to make it easier for the seated person to move the body on the seating surface.

In the third invention of the present invention, in the first or second invention, the tip portions of the stretchable bodies are connected to each other by a connecting body.

In the third invention, the connecting body can be configured to be elastically deformable or movable relative to the tip of each expanding and contracting body so that the connecting body does not interfere with the expansion and contraction operation of each expanding and contracting body. .. Further, the connecting bodies may be provided so as to intersect each other at positions corresponding to the tip portions of the respective stretchable bodies, and the tip portions of the respective stretchable bodies may be connected to each of the intersecting connecting bodies. The connecting body may be string-shaped or strip-shaped. Further, various materials such as cloth, resin, and metal can be used for the connecting body.

According to the third invention, even if the tip portions of the stretchable bodies are separated from each other on the seating surface, the gap due to the separation can be connected by the connecting body. Therefore, the seating surface can be made a smooth surface with less unevenness by the combination of the tip end portion of each elastic body and the connecting body. Further, since the tip of each stretchable body is connected by the connecting body, it is possible to prevent the tip of each stretchable body from wobbling without increasing the support strength of the base end of each stretchable body to the support member. be able to.

A fourth aspect of the present invention is arranged adjacent to the tip of each stretchable body so as to fill a gap on the seating surface formed between the tip ends of the stretchable body in the third invention. A support surface body provided along the seating surface is provided, and the support surface body is connected and supported by the connecting body in the same manner as the tip end portion of each of the telescopic bodies.

In the fourth invention, the support facets may be arranged and arranged arbitrarily with respect to the block body.

According to the fourth invention, since the gap between the tip portions of each stretchable body is filled with the support surface body, the seating surface can be made a smooth surface without increasing the number of each stretchable body.

It is a perspective view of one Embodiment of this invention. It is a vertical sectional view of the main part of the seat back in the said embodiment. It is an enlarged perspective view of the main part of the seat back in the said embodiment. It is an exploded perspective view of one stretchable body in the said embodiment. It is an exploded perspective view of one support face body in the said embodiment. It is a block circuit diagram of the control circuit in the said embodiment.

<Overall configuration>
Each figure shows one embodiment of the present invention. This embodiment is an example in which the present invention is applied to an automobile seat (corresponding to a seating seat of the present invention; hereinafter, simply referred to as a seat). In each figure, arrows indicate the directions of each part when the seat is mounted on the automobile. In the following description, the description regarding the direction shall be made with reference to this direction.

As shown in FIG. 1, the seat 1 includes a seat cushion 3 forming a seat portion and a seat back 2 forming a backrest. The upper surface of the seat cushion 3 and the front surface of the seat back 2 are seating surfaces that support the seated person. The seating surface is formed by a plurality of tip portions of the stretchable body 10 provided side by side in a matrix of a plurality of columns and a plurality of rows and a tip portion of a support face body 21 arranged adjacent to the stretchable body 10.

<Structure of elastic body 10>
As shown in FIGS. The base end portion (not shown) of the rod 12 is housed in the case 11, and the block body 14 is configured to be movable in the front-rear direction together with the rod 12 by a motor (not shown) provided in the case 11. ing. That is, the stretchable body 10 is stretchable in the front-rear direction. Further, the joint 13 is a ball joint, and the spherical portion 13a of the joint 13 is slidably fitted in the socket portion 14d of the block body 14.

Further, the cover body 16 is fixed to the tip end portion of the block body 14 with the cushion body 15 (corresponding to the elastic body of the present invention) sandwiched. The cover body 16 has a substantially hexahedral container shape, and with the cushion body 15 inserted inside the container shape, the open edge portion of the container shape forms a groove 14c that goes around the tip portion of the block body 14. It is fitted and fixed to the block body 14. The cover body 16 is deformable so as to be crushed in the front-rear direction by receiving the sitting pressure of the seated person, and gives the seated person a feeling of cushioning by the cushion body 15. The cover body 16 is made of a resin having a small frictional resistance in order to reduce the frictional resistance with the seated person. Of course, the material of the cover body 16 is not limited to this. Further, the cushion body 15 may be directly fixed to the tip of the block body 14 by adhesion or the like without providing the cover body 16.

<Structure of support facepiece 21>
As shown in FIG. 3, the block bodies 14 are arranged on the seating surface at intervals from each other, and the support surface bodies 21 are arranged around the block body 14 in the direction along the seating surface. As shown in FIG. 5, the support surface body 21 is configured such that the cover body 23 is fixed with the cushion body 22 sandwiched between the tip portions thereof. The method of combining the support surface body 21, the cushion body 22, and the cover body 23 is the same as the method of combining the block body 14, the cushion body 15, and the cover body 16. The groove 21c in FIG. 5 corresponds to the groove 14c in FIG. The support surface body 21 is arranged so as to surround the block body 14 so as to fill a gap on the seating surface formed between the block bodies 14. Note that FIG. 3 shows a state in which the cover bodies 16 and 23 are not covered on the tip portions of the block body 14 and the support surface body 21.

<Connected configuration with strips (connectors) 30 and 40>
As shown in FIGS. 2 to 5, each block body 14 and each support surface body 21 are provided with a plurality of strips 30 and 40 stretched vertically and horizontally along the seating surfaces of the seat back 2 and the seat cushion 3. They are connected to each other by (corresponding to the conjugate of the present invention). Although not shown, the ends of the bands 30 and 40 are fixed to the skeleton members of the seat back 2 and the seat cushion 3 without slack. Each of the bands 30 and 40 is composed of a flexible cloth band that can be expanded and contracted in the longitudinal direction. Therefore, the bands 30 and 40 are deformable in the direction facing the seating surface.

As shown in FIGS. 4 and 5, each block body 14 and each support surface body 21 are provided with passages 14a and 21a through which the band 30 penetrates, and passages 14b and 21b through which the band 40 penetrates. The aisles 14a, 21a, 14b, and 21b are located at positions displaced from each other in the front-rear direction, and are configured to be orthogonal to each other in the front view of the seat back 2 and the upward view of the seat cushion 3. Therefore, as shown in FIG. 3, the band bodies 30 and 40 are arranged along the seating surface of the seat back 2 and the seat cushion 3 in a state where the block body 14 and the support surface body 21 are arranged along the seating surfaces of the seat back 2 and the seat cushion 3. When penetrated through 21b, the strips 30 and 40 intersect with each block 14 and each support face 21 at a position corresponding to each block 14, and each block 14 and each support face 21 intersect with each band 30. , 40 are connected to each other.

<Operation explanation>
As shown in FIG. 6, the motor 53 that operates the rod 12 of the telescopic body 10 is connected to the control circuit 51 and operated. On the other hand, a signal for controlling the operation of the control circuit 51 is input to the control circuit 51 from the input operation unit 52. The input operation unit 52 inputs the physique information of the seated person. The input here is, for example, a distinction between large, medium, and small body sizes. Of course, as a method of inputting the physique, it is also possible to adopt another method such as measuring and inputting the physique of the actual seated person.

Based on the input of the input operation unit 52, the control circuit 51 operates each motor 53 to move the position of the block body 14 of each telescopic body 10 to a position according to the physique of the seated person. As a result, the seating surfaces of the seat back 2 and the seat cushion 3 are shaped according to the physique of the seated person.

Since the block body 14 of the telescopic body 10 is swingable by the joint 13, it swings along the body shape of the seated person. At this time, each support surface body 21 is connected to each block body 14 and the adjacent support surface body 21 by the band bodies 30 and 40. Therefore, each support surface body 21 is moved to a position where the adjacent block bodies 14 are smoothly connected to each other. As a result, the seating surfaces of the seat back 2 and the seat cushion 3 are shaped according to the physique of the seated person depending on the position of the block body 14 of the stretchable body 10, and the block body 14 of each stretchable body 10 and each support face body 21. Due to the inclination of, the shape is smoothly continuous along the body shape of the seated person.

<Effect>
According to the above embodiment, a plurality of stretchable bodies 10 arranged in a matrix so as to form a seating surface expands and contracts according to the physique of the seated person. Therefore, it is possible to adjust not only a part of the seating surface but also the entire seating surface according to the difference in the physique of the seated person.

The block body 14 of the stretchable body 10 is covered by the cover body 16 via the cushion body 15. Therefore, the seating feeling can be softened as compared with the case where the seated person directly touches the block body 14 of the stretchable body 10. Further, since the cover body 16 is made of a resin having a small frictional resistance, it is possible to reduce the frictional resistance with the seated person and make it easier for the seated person to move the body on the seating surface.

Even if the block bodies 14 of the stretchable body 10 are separated from each other on the seating surface and a gap is formed due to the separation, the gap is connected by the bands 30 and 40 and the gap is filled by the support surface body 21. Therefore, the seating surface can be made a smooth surface with few irregularities without increasing the number of the stretchable bodies 10. Further, since the block bodies 14 of the stretchable bodies 10 are connected by the strips 30 and 40, the stretchable bodies 10 do not need to be strengthened to support the support member 1a at the base end of the stretchable bodies 10. It is possible to prevent the block body 14 from wobbling.

The seating surface is divided into a plurality of regions by the plurality of stretchable bodies 10, and the block body 14 freely swings in a state where the stretchable bodies 10 are supported by the support member 1a. Therefore, the shape of the seating surface can be adjusted according to the difference in the body shape of the seated person without destabilizing the support of the seated person.

Since the bands 30 and 40 are made of elastic bodies, the expansion and contraction of the bands 30 and 40 makes it easier for each block body 14 and the support surface body 21 to move according to the body shape of the seated person, and the shape of the seating surface is changed to the seated person. It becomes easier to match the body shape of.

The block body 14 and the support surface body 21 are made movable with respect to the band bodies 30 and 40 by the passages 14a, 21a, 14b and 21b. Therefore, each block body 14 and the support surface body 21 can easily move according to the body shape of the seated person, and the shape of the seating surface can be easily matched to the body shape of the seated person.

Each block body 14 and a support surface body 21 are supported by bands 30 and 40 that intersect at positions corresponding to them. Therefore, each block body 14 and the support surface body 21 can form a seating surface that deforms in the crossing direction according to the difference in the body shape of the seated person.

<Other embodiments>
Although the specific embodiments have been described above, the present invention is not limited to their appearance and configuration, and various changes, additions, and deletions can be made. For example, in the above embodiment, the present invention is applied to a seat of an automobile, but it may be applied to a seat mounted on a vehicle such as an airplane, a ship, a train, or a seat used in a movie theater or the like.

In the above embodiment, the cover body 16 at the tip of the telescopic body 10 and the cover body 23 at the tip of the support face body 21 are exposed on the seating surface, but the cover bodies 16 and 23 as a whole are exposed so as not to be exposed. You may cover it with a seat cover. At that time, a pad having a cushioning property may be provided integrally or separately on the back surface side of the seat cover.

1 Automotive seats (seating seats, seats)
1a Support member 2 Seat back 3 Seat cushion 10 Telescopic body 11 Case 12 Rod 13 Joint 13a Spherical part 14 Block body 14a Aisle 14b Passage 14c Groove 14d Socket part 15 Cushion body (elastic body)
16 Cover body 21 Support surface body 21a Passage 21b Passage 21c Groove 22 Cushion body 23 Cover body 30 Band body (connecting body)
40 band (connector)
51 Control circuit 52 Input operation unit 53 Motor

Claims (2)

A plurality of stretchable bodies are provided side by side in a matrix so as to form a seating surface that supports the seated person.
The base end portion of each of the stretchable bodies is supported by the support member of the seating seat so that the tip end portion is located along the seating surface, and the stretchable body is expanded and contracted between the base end portion and the tip end portion.
In each of the stretchable bodies, the tip portions thereof are connected to each other by a connecting body.
A support surface body is provided adjacent to the tip portion of each stretchable body so as to fill a gap on the seating surface formed between the tip portions of the stretchable body, and is provided along the seating surface. The support face body is a seating seat that is connected and supported by the connecting body in the same manner as the tip end portion of each of the stretchable bodies. In claim 1,
The tip of each of the stretchable bodies is covered with a cover body.
The cover body is a seating seat fixed to the tip of the stretchable body with an elastic body sandwiched between them.

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