JP2023179220A - vehicle seat - Google Patents

Abstract

To provide a slide type vehicle seat which can be arranged at a position having limited installation area.SOLUTION: A vehicle seat includes: a seat cushion; an armrest; a cushion frame which supports the seat cushion; a first slide device which supports the cushion frame; a second slide device which supports the armrest. The first slide device has a first movable rail arranged below the cushion frame and a first fixed rail slidably supporting the first movable rail. The second slide device has a second movable rail stored in the armrest and a second fixed rail slidably supporting the second movable rail.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to vehicle seats.

2. Description of the Related Art A vehicle seat is known that is provided with a slide device for changing its position within the vehicle (see Patent Document 1). The slide device is composed of a movable rail and a fixed rail, which are arranged one each in the seat width direction. The movable rail is attached to the cushion frame and the fixed rail is located on the floor of the vehicle.

JP 2021-172092 Publication

Depending on the internal structure of the vehicle and the position of the seats, there may not be enough space on the floor to place two fixed rails. Under such conditions, a vehicle seat with a conventional sliding device cannot be installed.

One aspect of the present disclosure is to provide a sliding vehicle seat that can be placed in a location where footprint is limited.

One aspect of the present disclosure includes a seat cushion (2), an armrest (5), a cushion frame (6) that supports the seat cushion (2), and a first slide device (8) that supports the cushion frame (6). and a second slide device (9) that supports an armrest (5). The first slide device (8) includes a first movable rail (81) arranged below the cushion frame (6) and a first fixed rail (82) that slidably supports the first movable rail (81). and has. The second slide device (9) includes a second movable rail (91) housed inside the armrest (5), and a second fixed rail (92) that slidably supports the second movable rail (91). has.

According to such a configuration, the second fixed rail (92) can be attached to a location other than the floor of the vehicle. Furthermore, since the second movable rail (91) is housed inside the armrest (5), an increase in the installation space for the vehicle seat (1) is suppressed. As a result, the sliding vehicle seat (1) can be placed in a position where the installation area is limited.

In one aspect of the present disclosure, the first slide device (8) is attached to the first actuator (83) and the first movable rail (81), and is powered by the first actuator (83) to provide the first slide device (8) with the first movable rail (81). 81) relative to the first fixed rail (82). The second slide device (9) is attached to a second actuator (93) and a second movable rail (91), and moves the second movable rail (91) to the second fixed rail by the power of the second actuator (93). It may further include a second sending mechanism (94) configured to move relative to (92). The second actuator (93) and the second sending mechanism (94) may be housed inside the armrest (5). According to such a configuration, the slide can be motorized while suppressing an increase in the installation space of the vehicle seat (1).

In one aspect of the present disclosure, the sliding direction of the first movable rail (81) and the second movable rail (91) may be the seat front-rear direction. The point of action of the second feeding mechanism (94) on the second fixed rail (92) may be located further behind the seat than the point of action of the first feeding mechanism (84) on the first fixed rail (82). . According to such a configuration, the second actuator (93) and the second feeding mechanism (94) can be arranged inside the armrest (5) without making the armrest (5) unnecessarily large.

In one aspect of the disclosure, the second fixed rail (92) may be configured to be attached to a sidewall (W) of the vehicle. According to such a configuration, the installation area of the vehicle seat (1) can be reduced.

Note that the symbols in parentheses above are examples showing correspondences with specific configurations, etc. described in the embodiments described later, and the present disclosure is not limited to the specific configurations, etc. shown in the symbols in parentheses above. It's not something you can do.

FIG. 1 is a schematic perspective view showing a vehicle seat according to an embodiment. FIG. 2 is a schematic perspective view of a cushion frame, a first slide device, and a second slide device in the vehicle seat of FIG. 1. FIG. 3 is a schematic diagram showing the operation of the first feeding mechanism in the first slide device of FIG. 2. FIG. 4A and 4B are schematic perspective views showing the vehicle seat of FIG. 1 installed in a vehicle.

Embodiments to which the present disclosure is applied will be described below with reference to the drawings.
[1. First embodiment]
[1-1. composition]
The vehicle seat 1 shown in FIG. 1 includes a seat body 10, a first slide device 8, a second slide device 9, and a slide connection structure 11.

The vehicle seat 1 is used as a seat for a passenger car. Specifically, the vehicle seat 1 is arranged at a position close to a side wall (specifically, a left wall) of a passenger car. Note that the directions in the following description and in each drawing refer to the directions when the vehicle seat 1 is assembled into a vehicle (that is, a passenger car). In this embodiment, the seat width direction corresponds to the left-right direction of the vehicle, and the front of the seat corresponds to the front of the vehicle.

The seat body 10 includes a seat cushion 2, a seat back 3, a first armrest 4, a second armrest 5, a cushion frame 6, and a back frame 7. The seat cushion 2 is a part for supporting the buttocks of a seated person. The seat back 3 is a part for supporting the back of a seated person. The cushion frame 6 supports the seat cushion 2. The back frame 7 supports the seat back 3.

<Armrest>
The first armrest 4 is a part for supporting the right arm of the seated person. The second armrest 5 is a part for supporting the left arm of the seated person.

The second armrest 5 is arranged close to the side wall of the vehicle. The second armrest 5 has a sliding portion 51 that slides on the side wall of the vehicle when the seat body 10 slides. The sliding portion 51 is made of, for example, an elastic material. The sliding portion 51 closes the gap between the side wall of the vehicle and the second armrest 5. As a result, the appearance of the second armrest 5 is improved, and items can be prevented from falling into the gap between the side wall of the vehicle and the second armrest 5.

The first armrest 4 and the second armrest 5 each include a frame, a cover that covers the frame, and a skin material. The sliding portion 51 of the second armrest 5 is attached to the outer surface of the cover. The first armrest 4 and the second armrest 5 are arranged above the seat cushion 2 and the cushion frame 6.

<Cushion frame>
As shown in FIG. 2, the cushion frame 6 includes a side frame 61, a first rod 62, and a second rod 63.

The side frame 61 extends in the front-rear direction of the seat. The side frame 61 is arranged below the second armrest 5. The first rod 62 and the second rod 63 are each cylindrical members extending in the sheet width direction.

The first rod 62 protrudes from the front end of the side frame 61 toward the first armrest 4 (that is, to the right). In this embodiment, the first rod 62 is integrated with a rod that forms part of the side frame 61. A right end portion of the first rod 62 is connected to the first armrest 4.

The second rod 63 projects from the rear end of the side frame 61 toward the first armrest 4 (that is, to the right). A right end portion of the second rod 63 is connected to the first armrest 4.

<First slide device>
The first slide device 8 supports the cushion frame 6. The first slide device 8 includes a first movable rail 81, a first fixed rail 82, a first actuator 83, and a first sending mechanism 84.

The first movable rail 81 is fixed to the cushion frame 6 via the slide connection structure 11. The first movable rail 81 is arranged below the cushion frame 6. The first movable rail 81 extends in the seat front-back direction (that is, the sliding direction).

The first fixed rail 82 supports the first movable rail 81 so as to be slidable in the seat front and rear directions. The first fixed rail 82 has a plurality of openings 82A provided along the sliding direction. The first fixed rail 82 is attached to the floor of the vehicle.

The first actuator 83 is a power source for sliding the first movable rail 81 with respect to the first fixed rail 82 . The first actuator 83 is attached to the first movable rail 81.

The first sending mechanism 84 is configured to move the first movable rail 81 with respect to the first fixed rail 82 using the power of the first actuator 83 . The first feed mechanism 84 is attached to the first movable rail 81.

The first feeding mechanism 84 includes a rotating body 84A shown in FIG. The rotating body 84A has a plurality of protrusions 84B arranged at equal intervals in the rotational direction (that is, the circumferential direction). The rotating body 84A rotates so that the plurality of protrusions 84B sequentially fit into the plurality of openings 82A of the first fixed rail 82 and separate from the plurality of openings 82A. As the rotating body 84A rotates, the protrusion 84B detachably fits into the opening 82A from the inside in the seat width direction, and then separates from the opening 82A.

The rotating body 84A rotates so that at least one protrusion 84B always comes into contact with the edge of at least one opening 82A. Thereby, the first feeding mechanism 84 receives a reaction force from the first fixed rail 82 via at least one protrusion 84B. As a result, the first movable rail 81 to which the first sending mechanism 84 is attached is sent relative to the first fixed rail 82 by the rotation of the rotating body 84A.

<Second slide device>
The second slide device 9 shown in FIG. 2 supports the second armrest 5. The second slide device 9 is arranged apart from the first slide device 8 in the seat width direction. The second slide device 9 includes a second movable rail 91, a second fixed rail 92, a second actuator 93, and a second sending mechanism 94.

The second movable rail 91 is fixed to the cushion frame 6 via the slide connection structure 11 and is housed inside the second armrest 5. That is, the second movable rail 91, together with a portion of the slide connection structure 11, the second actuator 93, and the second feed mechanism 94, is covered by the cover of the second armrest 5 from the inside in the seat width direction. The second movable rail 91 is arranged above the cushion frame 6 and the first movable rail 81.

The second movable rail 91 extends in the seat front-rear direction (that is, the sliding direction). The second movable rail 91 is arranged apart from the first movable rail 81 in a direction perpendicular to the sliding direction of the first movable rail 81 (that is, in the seat width direction).

The second fixed rail 92 supports the second movable rail 91 so as to be slidable in the seat front and rear directions. The second fixed rail 92 has a plurality of openings 92A provided along the sliding direction.

As shown in FIGS. 4A and 4B, the second fixed rail 92 is attached to the side wall W of the vehicle with the vehicle seat 1 installed in the vehicle. Specifically, the second fixed rail 92 is arranged inside an opening provided in the side wall W. The second fixed rail 92 is fixed to a connected portion (not shown) inside the side wall W by a plurality of brackets 95A, 95B, and 95C.

The second actuator 93 shown in FIG. 2 is a power source for sliding the second movable rail 91 with respect to the second fixed rail 92. The second actuator 93 is attached to the second movable rail 91.

The second sending mechanism 94 is configured to move the second movable rail 91 relative to the second fixed rail 92 by the power of the second actuator 93. The second feed mechanism 94 is attached to the second movable rail 91.

The configuration of the second feeding mechanism 94 is the same as that of the first feeding mechanism 84. That is, the second feed mechanism 94 has a rotating body similar to the first feed mechanism 84. The rotating body of the second feeding mechanism 94 has a plurality of protrusions that are attached to and detached from the plurality of openings 92A of the second fixed rail 92.

The point of action of the second feeding mechanism 94 on the second fixed rail 92 is located further behind the seat than the point of action of the first feeding mechanism 84 on the first fixed rail 82 . The point of action is the position where the protrusion of the rotating body of the feed mechanism fits into the opening of the fixed rail, and if the feed mechanism has multiple rotating bodies, the protrusion of the rotating body located furthest in front of the seat. means the position where it fits into the fixed rail.

The second actuator 93 and the second feed mechanism 94 are housed inside the second armrest 5 together with the second movable rail 91 . Specifically, the second movable rail 91, the second actuator 93, and the second feeding mechanism 94 are covered by the cover of the second armrest 5.

<Slide connection mechanism>
The slide connection structure 11 shown in FIG. 2 includes a first reinforcement part 111, a second reinforcement part 112, and a frame connection part 113.

The first reinforcing portion 111 connects each of the front end portion of the first movable rail 81 and the front end portion of the second movable rail 91 to the cushion frame 6. The first reinforcing portion 111 includes a first lower connecting member 1111 that connects the first movable rail 81 and the cushion frame 6, and a first upper connecting member 1112 that connects the second movable rail 91 and the cushion frame 6. .

The second reinforcing portion 112 connects the rear end portion of the first movable rail 81 and the rear end portion of the second movable rail 91 to the cushion frame 6 . The second reinforcing portion 112 includes a second lower connecting member 1121 that connects the first movable rail 81 and the cushion frame 6, and a second upper connecting member 1122 that connects the second movable rail 91 and the cushion frame 6. .

The frame connecting portion 113 connects the front end of the first movable rail 81 to the first rod 62 of the cushion frame 6. A connecting portion between the frame connecting portion 113 and the first rod 62 overlaps with the first fixed rail 82 in the vertical direction.

[1-2. effect]
According to the embodiment detailed above, the following effects can be obtained.
(1a) The second fixed rail 92 can be attached to a location other than the floor of the vehicle. Furthermore, since the second movable rail 91 is housed inside the second armrest 5, an increase in the installation space for the vehicle seat 1 is suppressed. As a result, the sliding vehicle seat 1 can be placed in a position where the installation area is limited.

(1b) By housing the second actuator 93 and the second feeding mechanism 94 inside the second armrest 5, the slide can be motorized while suppressing an increase in the installation space of the vehicle seat 1.

(1c) The point of action of the second feed mechanism 94 on the second fixed rail 92 is located at the rear of the seat than the point of action of the first feed mechanism 84 on the first fixed rail 82, making the second armrest 5 unnecessary. The second actuator 93 and the second sending mechanism 94 can be arranged inside the second armrest 5 without increasing the size.

(1d) By configuring the second fixed rail 92 to be attached to the side wall of the vehicle, the installation area of the vehicle seat 1 can be reduced.

[2. Other embodiments]
Although the embodiments of the present disclosure have been described above, it goes without saying that the present disclosure is not limited to the above embodiments and can take various forms.

(2a) In the vehicle seat of the above embodiment, the feeding mechanisms of the first slide device and the second slide device do not necessarily have the above-mentioned rotating body. For example, the first slide device and the second slide device may have a feed mechanism including a screw shaft and a feed nut.

(2b) In the vehicle seat of the above embodiment, the first slide device and the second slide device do not necessarily have an actuator. That is, the first slide device and the second slide device may be configured to slide manually.

(2c) The vehicle seat of the above embodiment can also be applied to seats used in automobiles other than passenger cars, and seats used in vehicles other than automobiles, such as railway vehicles, ships, and aircraft.

(2d) The function of one component in the above embodiment may be distributed as multiple components, or the functions of multiple components may be integrated into one component. Further, a part of the configuration of the above embodiment may be omitted. Further, at least a part of the configuration of the above embodiment may be added to, replaced with, etc. in the configuration of other embodiments. Note that all aspects included in the technical idea specified from the words in the claims are embodiments of the present disclosure.

1...Vehicle seat, 2...Seat cushion, 3...Seat back,
4...first armrest, 5...second armrest, 6...cushion frame,
8...First slide device, 9...Second slide device, 10...Seat body,
DESCRIPTION OF SYMBOLS 11...Slide connection structure, 51...Sliding part, 61...Side frame, 62...First rod,
63...Second rod, 81...First movable rail, 82...First fixed rail, 82A...Opening,
83...first actuator, 84...first sending mechanism, 91...second movable rail,
92...Second fixed rail, 92A...Opening, 93...Second actuator,
94...Second feed mechanism, 95A, 95B, 95C...Bracket, 111...First reinforcement part,
112... Second reinforcing part, 113... Frame connecting part, 1111... First lower connecting member,
1112...First upper connecting material, 1121...Second lower connecting material, 1122...Second upper connecting material.

Claims (4)

seat cushion and
armrest and
a cushion frame that supports the seat cushion;
a first slide device that supports the cushion frame;
a second slide device that supports the armrest;
Equipped with
The first slide device includes:
a first movable rail located below the cushion frame;
a first fixed rail that slidably supports the first movable rail;
has
The second slide device includes:
a second movable rail housed inside the armrest;
a second fixed rail that slidably supports the second movable rail;
A vehicle seat having: The vehicle seat according to claim 1,
The first slide device includes:
a first actuator;
a first sending mechanism attached to the first movable rail and configured to move the first movable rail with respect to the first fixed rail by power of the first actuator;
It further has
The second slide device includes:
a second actuator;
a second sending mechanism attached to the second movable rail and configured to move the second movable rail with respect to the second fixed rail by power of the second actuator;
It further has
A vehicle seat, wherein the second actuator and the second feeding mechanism are housed inside the armrest. The vehicle seat according to claim 2,
The sliding direction of the first movable rail and the second movable rail is the seat front and back direction,
The vehicle seat, wherein a point of action of the second feeding mechanism on the second fixed rail is located at a position rearward of the seat relative to a point of action of the first feeding mechanism on the first fixed rail. The vehicle seat according to any one of claims 1 to 3,
A vehicle seat, wherein the second fixed rail is configured to be attached to a side wall of the vehicle.

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