JP2024032394A - seat - Google Patents

Abstract

[Problem] To provide a seat that can satisfactorily transmit vibrations of a vibrator to a seated person without impairing seating comfort due to the vibrator. SOLUTION: A seat 1 incorporating vibrators 4A to 4D, including a support 6, a first buffer section 71 supported by the support 6, and vibrators 4A to 4D supported by the first buffer section 71. 4D, a support 6, a first buffer section 71, and a cover 8 that covers the vibrators 4A to 4D. A bridge portion 62 spanning over 61 is provided. [Selection diagram] Figure 2

Description

The present disclosure relates to seats.

Patent Document 1 discloses a seat with a built-in vibrator. Such a seat can notify the driver of a warning from the vehicle through the vibration of the vibrator.

JP 2017-214007 Publication

However, the seat of Patent Document 1 has room for improvement in terms of seating comfort and ease of transmission of vibrations.

Therefore, an object of the present disclosure is to provide a seat that can satisfactorily transmit vibrations of a vibrator to a seated person without impairing seating comfort due to the vibrator.

In one aspect, the following solution is provided.

A seat (1) with a built-in vibrator (4A to 4D),
a support (6);
a first buffer section (71) supported by the support body (6);
the vibrator (4A to 4D) supported by the first buffer section (71);
a cover (8) that covers the support body (6), the first buffer section (71), and the vibrator (4A to 4D);
The support (6) is
a hole (61) formed at a position corresponding to the vibrator (4A to 4D);
A seat (1) is provided, comprising a bridge portion (62) that straddles the hole (61).

According to the present disclosure, it is possible to provide a seat that can satisfactorily transmit vibrations of a vibrator to a seated person without impairing seating comfort due to the vibrator.

FIG. 2 is a perspective view showing the seat of this embodiment. 1. FIG. 1 is a sectional view taken along line AA in FIG. be. FIG. 3 is a plan view showing the main part of the support body of the seat of the present example, in which (a) is a plan view showing the main part of the support body of the present embodiment, and (b) is a plane view showing the main part of the support body of a first modification. FIG. 3C is a plan view showing the main part of the support of the second modification.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. Note that in the drawings, for ease of viewing, only some of the parts having the same attribute may be labeled with reference numerals.

[seat]
FIG. 1 is a perspective view showing the seat 1 of this embodiment. Note that three orthogonal axes (X-axis, Y-axis, and Z-axis) are defined in FIG. 1. Here, the X-axis corresponds to the longitudinal direction of the vehicle in which the seat 1 is mounted, the Y-axis corresponds to the left-right direction (width direction) of the vehicle, and the Z-axis corresponds to the vertical direction of the vehicle.

The seat 1 includes a seating portion 2, a backrest portion 3, vibrators 4A to 4D, and a control device 5, and constitutes a driver's seat of the vehicle.

The seat portion 2 supports the driver's buttocks and thighs. The backrest portion 3 extends upward from the rear end of the seating portion 2 in a rearwardly inclined manner, and supports the driver's back and head.

The vibrators 4A to 4D are configured using, for example, a voice coil type vibration generating device, and four are built into the seat 1. Among the four vibrators 4A to 4D, vibrators 4A and 4B are built into the seating section 2. The vibrator 4A is arranged offset to one side with respect to the central position of the seating section 2 in the Y direction, and the vibrator 4B is arranged offset to the other side with respect to the central position of the seating section 2 in the Y direction. be done. Further, among the four vibrators 4A to 4D, vibrators 4C and 4D are built into the backrest portion 3. The vibrator 4C is arranged offset to one side with respect to the center position of the backrest part 3 in the Y direction, and the vibrator 4D is arranged offset to the other side with respect to the center position of the backrest part 3 in the Y direction. be done. In this embodiment, the number of vibrators 4A to 4D built into the seat 1 is four, but the number of vibrators 4A to 4D may be three or less, or five or more.

When a vehicle warning occurs, the control device 5 operates the vibrators 4A to 4D, and causes the vibrators 4A to 4D to output notification vibrations. For example, when the control device 5 receives an obstacle detection signal on the left front of the vehicle from the vehicle ECU, it causes the vibrator 4A (on the left side of the seating portion) to output a notification vibration to urge the driver to pay attention to the left front. Further, when the control device 5 receives a right lane deviation detection signal from the vehicle ECU, the control device 5 causes the vibrator 4B (right side of the seat portion) and the vibrator 4D (right side of the backrest portion) to output notification vibrations to prompt the driver to move to the right. Call for attention to.

[Cross-sectional structure of the seat]
FIG. 2 is a sectional view taken along the line AA in FIG. 1, where (a) is a sectional view taken along line AA showing the main part of the seat 1 in the non-seated state, and (b) shows the main part of the seat 1 in the seated state. It is an AA sectional view.

Note that although FIG. 2 shows the cross-sectional structure at the position where the vibrator 4A is built-in, the cross-sectional structures at the positions where the other vibrators 4B to 4D are built-in are also approximately the same.

As shown in FIG. 2, the seat 1 includes a support 6, a buffer section 7, and a cover 8. The support body 6 is a rigid plate made of metal or wood, and is supported by the vehicle body via a seat position adjustment mechanism. The buffer section 7 is configured by laminating a third buffer section 73 along the upper surface side (seat surface side) of the support body 6 and a fourth buffer section 74 along the upper surface side of the third buffer section 73. For example, the third buffer section 73 is a mat material made of lightweight semi-rigid urethane, and the fourth buffer section 74 is a mat material made of low-rebound urethane that has a lower elastic modulus than the third buffer section 73. The cover 8 includes a front cover 81 along the upper surface side of the fourth buffer section 74 and a back cover 82 along the lower surface side of the support body 6. The front cover 81 and the back cover 82 are, for example, sheet materials made of synthetic leather. According to such a cross-sectional structure of the seat 1, good sitting comfort is ensured by appropriate compressive elastic deformation of the third buffer section 73 and the fourth buffer section 74.

[Support structure of vibrator]
As shown in FIG. 2, the seat 1 includes a vibrator housing section 75 formed by cutting out a third buffer section 73 and a fourth buffer section 74. The vibrator 4</b>A is accommodated in the vibrator accommodating part 75 while being supported by the first buffer part 71 , and is supported by the support body 6 via the first buffer part 71 and the second buffer part 72 .

The first buffer section 71 includes a main body section 71a, a vibrator support section 71b, a bottom section 71c, a gap section 71d, and a recess section 71e. The main body portion 71a has a cylindrical shape with a center line extending in the vertical direction. The vibrator support portion 71b extends inward from the upper end of the main body portion 71a, and supports the outer circumference of the vibrator 4A. The bottom portion 71c closes the lower opening of the main body portion 71a and faces the lower surface of the vibrator 4A. The cavity 71d is formed directly below the vibrator 4A. The height dimension of the cavity 71d (the distance between the lower surface of the vibrator 4A and the bottom part 71c) is large when the vibrator 4A is not seated as shown in FIG. It becomes smaller according to compressive elastic deformation. In other words, the gap 71d allows the vibrator 4A to freely move downward during the seating process, thereby suppressing the repulsive force of the vibrator 4A from being transmitted to the seating surface, and reducing the foreign body sensation caused by the vibrator 4A.

The recessed portion 71e is open downward, and a mat-shaped second buffer portion 72 is accommodated therein. Thereby, the vibrator 4A is supported by the support body 6 via the first buffer section 71 and the second buffer section 72. For example, the first buffer portion 71 is a chip urethane having a lower elastic modulus than lightweight semi-rigid urethane, and the second buffer portion 72 is a low-repulsion urethane having a lower elastic modulus than the chip urethane. Therefore, when the vibrator 4A is seated as shown in FIG. By absorbing the repulsive force, it is possible to suppress the repulsive force of the vibrator 4A from being transmitted to the seat surface, and to reduce the feeling of a foreign body caused by the vibrator 4A.

As shown in FIGS. 2 and 3, the support body 6 has a hole 61 formed at a position corresponding to the vibrator 4A (a contact area between the first buffer section 71 and the second buffer section 72); It includes a bridge section 62 that straddles. The bridge portion 62 supports the lower surface portions of the first buffer portion 71 and the second buffer portion 72 while allowing the lower surface portions of the first buffer portion 71 and the second buffer portion 72 to enter the hole 61 when seated. By doing so, compressive deformation of the first buffer section 71 and the second buffer section 72 is promoted. According to the hole 61 and the bridge part 62 of the support body 6, when the person is seated, compressive deformation of the first buffer part 71 and the second buffer part 72 is promoted, and the repulsive force of the vibrator 4A is transmitted to the seat surface. , it is possible to further reduce the foreign body sensation caused by the vibrator 4A. Further, when the vibrator 4A is seated, it is supported by the support body 6 in a contact state via the bottom 71c of the first buffer section 71, the second buffer section 72, and the bridge section 62, so that the gap 71d is The vibrator 4A can be supported more reliably and the vibrations of the vibrator 4A can be better transmitted to the seated person than when the seated person is not seated.

The cross-sectional shape of the bridge portion 62 is preferably a circle (semicircle) or a triangle having an apex. In this way, compression deformation of the first buffer section 71 and the second buffer section 72 can be further promoted. Further, as shown in FIGS. 2(a) and 3(b) and FIG. 3(a), the bridge portion 62 may be configured separately from the support 6 and fixed to the support 6. As shown in FIGS. 3(b) and 3(c), it may be constructed integrally with the support body 6. Furthermore, as shown in FIGS. 3(a) and 3(b), a plurality of bridge parts 62 may be arranged in parallel, but as shown in FIG. It may be placed in

Although each embodiment has been described in detail above, it is not limited to a specific embodiment, and various modifications and changes can be made within the scope of the claims. It is also possible to combine all or a plurality of the components of the embodiments described above.

1 Seat 2 Seat portion 3 Backrest portions 4A to 4D Vibrator 5 Control device 6 Support body 61 Hole 62 Bridge portion 7 Buffer portion 71 First buffer portion 71a Main body portion 71b Vibrator support portion 71c Bottom portion 71d Cavity portion 71e Recess portion 72 Second Buffer section 73 Third buffer section 74 Fourth buffer section 75 Transducer housing section 8 Cover 81 Front cover 82 Back cover

Claims (3)

A seat with a built-in vibrator,
a support and
a first buffer section supported by the support body;
the vibrator supported by the first buffer section;
a cover that covers the support body, the first buffer section, and the vibrator;
The support is
a hole formed at a position corresponding to the vibrator;
A seat comprising: a bridge portion spanning the hole. 2. The seat according to claim 1, wherein the first buffer section has a gap formed directly below the vibrator. A second buffer section is provided between the first buffer section and the support body,
The seat according to claim 2, wherein the second buffer portion has a smaller elastic modulus than the first buffer portion.