JP3086785B2 - Vehicle seating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle seat in which a backrest is largely tilted rearward so that a backrest surface of the backrest is in a substantially horizontal bed state smoothly connected to a seat surface of a seat portion. Related to the device.

[0002]

2. Description of the Related Art As a conventional vehicle seat apparatus, for example, a seat portion is largely advanced and a backrest is dragged forward so that a seat surface of the seat portion and a backrest surface of the backrest are substantially horizontal. Some have a bed surface.

[0003] In some cases, the backrest is simply tilted farther rearward from the reclining state without moving the seat portion forward, to bring it to a bed state.

[0004]

However, in such a conventional vehicle seat apparatus, in the former case, a large forward space is required in front of the seat because the seat portion largely advances in a bed state. There are significant restrictions when setting up seats.

[0005] Also, in the latter case, there is a problem that a large space is required behind the seat because the backrest falls greatly backward, and the installation of the seat is also greatly restricted.

[0006] Further, in the former case ergonomically, there is a problem in that the entire head and waist are shifted forward when reclining, causing a feeling of instability.
Further, in the latter case, there is a problem in that the player inclines backward greatly from the reclining state and lowers his / her head, causing a feeling of instability during the process.

The present invention has been made in view of such a conventional problem. If a certain amount of space is secured before and after the seat, the seat can be put into a bed state and the seat can be installed. The versatility can be increased without being greatly restricted when doing it.Also, it has a normal reclining seat mechanism, the waist becomes the center of rotation, it can increase the sense of stability, By sliding forward, the head slides as it is, increasing the sense of stability during operation. In addition, it has a sense of stability when moving (during operation) ergonomically, and is more comfortable It is an object of the present invention to provide a vehicle seat device capable of improving vehicle performance.

[0008]

The gist of the present invention for achieving the above object lies in the matters described in the following items.

[1] The backrest (20) is largely tilted backward, and the backrest surface (22) of the backrest (20) is seated (30).
In a vehicle seat device adapted to be in a substantially horizontal bed state smoothly continuous with a seat surface (32) of a vehicle,
0), the backrest (20) is connected to the substantially horizontal bed state from the standing state through the reclining state so as to be able to be moved backward, and the seat is fixed to the fixed portion in front of the backrest (20) in response to the rising operation of the backrest (20). The leaning guide member (4) can be tilted between the upright state and the backward state.
0), and the leaning guide member (40) guides the leaning (20) from the upright state to the reclining state when tilting from the front upright state to the backwardly tilting state, and moves in the backwardly falling state. When the backrest (20) in the reclining state is dragged by the seat (30) and advances forward, the backrest (20)
A guide device (45) for guiding the vehicle from the reclining state to the bed state.

[2] The backrest (20) is largely tilted backward, and the backrest surface (22) of the backrest (20) is seated (30).
In a vehicle seat device adapted to be in a substantially horizontal bed state smoothly continuous with a seat surface (32) of a vehicle,
0), the backrest (20) is connected to the substantially horizontal bed state from the standing state through the reclining state so as to be able to fall back, and the backrest guide member (40) is supported at a fixed portion of the seat; The guide member (40) includes a guide portion (45) for guiding the back slip (20) from the reclining state to the bed state when the back slip (20) in the reclining state is dragged by the seat (30) and advances. A seat device for a vehicle, comprising:

[3] The vehicle seat apparatus according to [1], wherein the leaning guide member (40) is driven by a guide member driving mechanism (50) in a forwardly raised state and a backwardly inclined state. .

[4] The seat is installed on a pallet (10) or a floor reinforcing member provided on the floor of the vehicle,
Arranged on both sides of the seat (30), the pallet (1
0) or a seat fixing portion or an armrest member (15) erected on the floor reinforcing member has a seat portion guide member (16) for guiding the seat portion (30) forward and backward, and the seat portion (30). A seat drive mechanism (60) for driving the rack member (30) includes a rack member (62) extending in the front-rear direction on the pallet (10), and a pinion (64) meshing with the rack member (62). The vehicle seat apparatus according to any one of claims 1 to 3, further comprising a drive motor (66) for rotating the pinion (64) forward and reverse to move the seat forward and backward.

[5] The leg rest main body (70) is rotatable at the front end of the seat (30) between a hanging state and a horizontal state.
And a leg rest drive mechanism (80) that rotates from the hanging state to the horizontal state by interlocking the leg rest main body (70) with the advancing seat (30). 5. The vehicle seat device according to claim 1, 2, 3, or 4.

Next, the operation of the invention described in each of the above items will be described. In the vehicle seat device according to the item [1], the vehicle is slid down (20).
Falls backward from the standing state to the reclining state,
In response to the falling motion, the back guide member (40) tilts from the front up state to the rear down state.

When the seating guide member (40) is in the backward position, when the seat (30) is advanced, the seatback (20) is pulled forward by the seating portion (30), and the seatback guide member (40) is advanced. 4
0) falls backward from the reclining state on the backrest (20).

When the backrest (20) falls greatly backward, the backrest surface (22) of the backrest (20) is moved to the seat (3).
A substantially horizontal bed state smoothly continues to the seating surface (32) of (0).

In the vehicle seat device described in the item [2], the backrest (20) is moved backward from the standing state to the reclining state.

When the seat (30) is advanced, the reclining state (20) is dragged by the seat (30) and advances, and the guide (45) of the back guide member (40).
Guides the skid (20), and the skid (20) falls backward from the reclining state.

When the backrest (20) falls greatly backward, the backrest surface (22) of the backrest (20) is moved to the seat (3).
A substantially horizontal bed state smoothly continues to the seating surface (32) of (0).

In the vehicle seat device described in the item [3], the backrest guide member (40) is driven by the guide member drive mechanism (50) between the upright state and the reclining state.
Thereby, the backrest (20) is also used as the backrest guide member (40).
By the guide member driving mechanism (50), it is tilted into a standing state and a reclining state.

In the vehicle seat apparatus described in the item [4], when the drive motor (66) of the drive mechanism of the seat (30) is started, the pinion (64) rotates forward and backward, and the pallet (10).
Rolls on a rack member (62) extending in the front-rear direction. Thereby, the seat portion (30) is moved to the seat portion guide member (1).
It moves on the pallet (10) while being guided by 6).

In accordance with the movement of the seat portion (30), the backrest (20) is guided by the backrest guide member (40) to be displaced between a bed state and a reclining state.

[5] In the vehicle seat device described in the item [5], when the seat portion (30) moves forward, the leg rest main body (70) rotates from the hanging state to the horizontal state in conjunction with each other, and the bed area in the front-rear direction. Can be automatically extended.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. As shown in FIGS. 1 to 7, the seat according to the present embodiment is developed for an aircraft. A pallet 10 is provided on the floor of the aircraft corresponding to each seat, and a pair of armrest members 15 are fixed to the pallet 10 on both sides of the seat. On the inner wall surfaces of the pair of armrest members 15,
Seat guide members 16 which are guide rails are fixedly provided. The guide groove of each seat guide member 16 extends in the front-back direction, and guided rails fixed on both sides of the seat portion 30 are fitted into the guide grooves of each seat guide member 16 so as to be movable in the front-back direction. I agree. The seat portion 3 is controlled by the seat portion guide member 16.
0 is guided to the retreat position and the forward position.

A drive motor 66 is provided below the center of the seat 30 and the output of the drive motor 66 is transmitted to the pinion 64 via a speed reduction mechanism. The pallet 10 has a rack member 62 extending in the front-rear direction. A pinion 64 meshes with the rack member 62. The rack member 62 to the drive motor 66 constitute the seat drive mechanism 60.

As shown in FIGS. 1, 8 and 9, the lower end of the frame 21 of the backrest 20 is rotatably connected to the rear of both sides of the seat 30. A bracket 23 having a substantially U-shaped cross section is fixed to an intermediate portion in the vertical direction of the frame 21. Followers 24, which are cam followers, are provided on both side edges of the bracket 23. The seat 30 is
The backrest 20 is further largely lowered from a normal standing state to a reclining state in which the backrest is tilted backward, so that the backrest surface 22 becomes a substantially horizontal bed state in which the backrest surface 22 smoothly continues to the seating surface 32 of the seat portion 30. is there.

Behind the backrest 20 is a backside guide member 40.
Are arranged. The backrest guide member 40 is supported by a pair of armrest members 15, which are fixed portions of the seat, by a pivot 41 so as to be tiltable between a forwardly raised state and a backwardly inclined state. The back guide member 40 has a main body 41 in which a plurality of straight pipes 43 are bridged on side shrouds 42 on both sides and is reinforced by a substantially U-shaped pipe 44. A block-shaped guide portion 45 is fixedly provided at a central portion in the both sides of the plurality of bridged straight pipes 43. The guide portion 45 is formed with a guide groove 46 that extends straight forward and diagonally downward. The follower 24 of the backrest 20 is movably fitted in the guide groove 46 of the guide portion 45. Guide 4
The guide groove 46 guides the follower 24 so as to tilt the backrest 20 to the reclining state when the backrest guide member 40 is tilted from the front-raised state to the rearwardly-backed state. When the backrest 20 is in the backward position, the backrest 20 guides the follower 24 so as to move the backrest 20 from the reclining state to the bed state when the seat portion 30 is dragged from the retracted position to the advanced position.

The output rod 52 of the actuator 51 of the guide member drive mechanism 50 is connected to the back guide member 40. The guide member drive mechanism 50 extends and retracts the output rod 52 of the actuator 51, and Is driven between a front up state and a backward state. The guide member drive mechanism 50 includes:
It is covered from behind by a cover member 55.

As shown in FIGS. 1, 2, and 10 to 13, the leg rest main body 70 is rotatably supported on the front end of the seat 30 by a support arm 75 between a hanging state and a horizontal state. Have been. In the leg rest main body 70, a sub-rest body 72 is supported on a main rest body 71 so as to be extendable and contractable, and a slide 74 of the sub-rest body 72 is fitted on a guide rail 73 of the main rest body 71 so as to be movable in the extension and contraction direction. . A drive arm 81 is rotatably supported at the front end of the seat 30. The center of rotation of the support arm 75 and the center of rotation of the drive arm 81 are eccentric to each other, and when the leg rest body 70 rotates from the hanging state to the horizontal state, the distal end portion 82 of the driving arm 81 moves to the leg. The main body of the rest 70 moves rearward relative to the main rest body 71.

One end 84 of the relay link 83 is connected to the distal end 82 of the drive arm 81, and the subrest body 72 is connected to the other end 85 of the relay link 83. An actuator 87 is provided to rotate the leg rest main body 70 from the hanging state to the horizontal state. The main body of the actuator 87 is installed under the seat 30, and the rod 88 of the actuator 87 is attached to the leg rest main body 7.
0 main rest body 71. The drive arm 81, the relay link 83, and the actuator 87 constitute a leg rest drive mechanism 80.

Next, the operation of the embodiment of the present invention will be described. When the output rod 52 of the actuator 51 is retracted by operating the guide member drive mechanism 50, the back guide member 40 is pulled, and the back guide member 40 is moved from the front-raised state (the state shown by a solid line in FIG. 1). Retracted state (Fig. 1
In the state shown by the imaginary line).

When the back guide member 40 is tilted from the front upright state to the rearward down state, the back guide 2 is inserted into the guide groove 46 of the guide section 45.
The zero follower 24 is guided, and the backrest 20 falls back from the upright state to the reclining state. That is,
The reclining operation of the backrest 20 is performed by the guide member drive mechanism 50 through the backrest guide member 40.

If the drive motor 66 of the seat drive mechanism 60 is rotated forward in the case where the backrest guide member 40 is in the backward position and the backrest 20 is in the reclined state, the pinion 64 is applied to each tooth of the rack member 62. One after another,
The seat 30 is guided by the seat guide member 16 and the pallet 1
It moves forward from the retreat position on 0. When the seat 30 moves forward,
The backrest 20 is dragged by the seat 30 and moves forward, and the guide 4
The fifth guide groove 46 guides the follower 24 of the backrest 20, and the backrest 20 falls backward from the reclining state.

Then, when the backrest 20 largely falls rearward, the backrest surface 22 of the backrest 20 becomes a substantially horizontal bed state smoothly continuing to the seat surface 32 of the seat portion 30.

When the actuator 87 of the leg rest drive mechanism 80 is driven in conjunction with the forward movement of the seat 30, and the retractable rod 88 projects from the retracted state, the leg rest main body 70 is turned from the hanging state to the horizontal state. I do.

When the leg rest main body 70 rotates in a horizontal state, the drive arm 81 of the leg rest drive mechanism 80 pulls one end of the relay link 83 backward, whereby the other end of the relay link 83 is moved. Displaced forward, the sub-rest body 72 extends forward with respect to the main rest body 71. Thus, when the seat is in the bed state, the entire leg rest main body 70 is also largely unfolded in the front direction, and the bed area in the front-rear direction can be automatically increased.

To return the seat from the bed state to the reclining state, the seat drive mechanism 60 and the leg rest drive mechanism 80 are driven, the drive motor 66 is reversed, and the seat 3 is returned.
0 is retracted, the retractable rod 88 is retracted from the protruding state, and the leg rest main body 70 is rotated from the horizontal state to the hanging state.

At this time, the drive arm 81 moves forward with respect to the leg rest main body 70, one end of the relay link 83 is pushed in, and the other end of the relay link 83 is connected to the sub-rest body 72.
Is pulled backward, and the sub-rest body 72 shrinks toward the main rest body 71 side. The entire leg rest body 70 is in the initial retracted state in which it is contracted in the front-rear direction.

When the seat portion 30 returns to the initial retracted position, the guide groove 46 of the guide portion 45 guides the follower 24 of the skid 20, and the skid 20 returns from the bed state to the reclining state.

To tilt the backrest 20 from the reclining state to the upright state, the guide member driving mechanism 50 is driven,
What is necessary is just to make the output rod 52 protrude from the immersion state, and to raise the backrest 20 via the backrest guide member 40.

According to the above-described embodiment, since the seat is mounted on the pallet 10, it is not necessary to lay the rack member 62 directly on the floor of the vehicle, and the work of installing the seat is easy. Therefore, the restriction on the installation location of the seat is relaxed, and the versatility can be improved.

When the backrest 20 is in the upright state, the backrest guide member 40 is also in the upright state, so that the user can easily enter and exit the seat behind the seat.

In the above-described embodiment, the back guide member 40 is tilted between the front-raised state and the back-down state. However, the back guide member 40 is not tilted but is fixed in the back-down state. May be provided. In that case, for example,
The zero follower 24 may be fitted into the guide groove 46 of the guide part 45 when the backrest 20 falls from the upright state to the reclining state.

Further, the guide groove 45 is formed in the guide portion 45, and the follower 24 on the backrest 20 side is fitted in the guide groove 46. However, the reverse mode, that is, the guide groove 46 is It may be provided on the shear 20 side and the follower 24 may be provided on the guide part 45 side.

Further, the drive motor 6 of the seat drive mechanism 60
6 and the actuator 87 of the leg rest drive mechanism 80 are separate bodies, and two drive sources are used to move the seat 30 forward and backward and rotate the leg rest main body 70, respectively. It may be performed.

Further, the leg rest body 70 and the backrest 2
Although the description has been given of the case where the 0s are linked, the present invention is not limited to this, and the leg rest main body 70 and the backrest 20 may always operate individually.

Further, the rack member 62 is placed on the pallet 10.
Is shown, and the pinion 64 and the drive motor 66 are provided on the seat 30 side. However, the reverse mode may be adopted.

It is needless to say that the mechanism is not limited to the rack member 62 and the pinion 64 but may be a mechanism using a cylinder.

[0049]

According to the vehicle seat apparatus of the present invention, in order to place the seat in the bed state, the backrest is reclined without reclining the seat portion without moving the seat portion forward.
When the backrest is dragged by the seat portion and moves forward, the backrest is guided by the guide portion of the guide member, largely falls back, and the backrest surface of the backrest smoothly continues to the seat surface of the seat portion. The seat can be placed in a bed state if there is a certain amount of space before and after the seat, so there is no significant restriction when installing the seat, and versatility is improved. Can be enhanced. In addition, ergonomically, it has a sense of stability during movement (during operation), and can further improve comfort.

[Brief description of the drawings]

FIG. 1 is a side view of a vehicle seat device according to an embodiment of the present invention.

FIG. 2 is a plan view of a vehicle seat device showing one embodiment of the present invention.

FIG. 3 is a front view of a vehicle seat device according to an embodiment of the present invention.

FIG. 4 is a plan view of a pallet showing one embodiment of the present invention.

FIG. 5 is a side view of the pallet showing one embodiment of the present invention.

FIG. 6 is a partial front view of a vehicle seat device showing one embodiment of the present invention.

FIG. 7 is a partial side view of a vehicle seat device according to an embodiment of the present invention.

FIG. 8 is a partial front view of a vehicle seat device showing one embodiment of the present invention.

FIG. 9 is a partial side view of a vehicle seat device according to an embodiment of the present invention.

FIG. 10 is a plan view of a legrest showing one embodiment of the present invention.

FIG. 11 is a plan view of a legrest showing one embodiment of the present invention.

FIG. 12 is a plan view of a legrest showing one embodiment of the present invention.

FIG. 13 is a side view of the leg rest showing one embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Pallet 15 ... Armrest member 16 ... Seat guide member 17 ... Caster 20 ... Backward 21 ... Frame 23 ... Bracket 24 ... Follower 30 ... Seat 40 ... Backward guide member 45 ... Guide part 46 ... Guide groove 50 ... Guide member drive mechanism 51 Actuator 52 Output rod 60 Seat drive mechanism 62 Rack member 64 Pinion 66 Drive motor 70 Leg rest body 71 Main rest body 72 Subrest body 80 Leg rest drive mechanism 81 Drive arm 83 ... Relay link 87 ... Actuator 88 ... Protruding rod

Claims (5)

(57) [Claims] 1. A vehicle seat apparatus in which a backrest is largely tilted rearward so that a backrest surface of the backrest is in a substantially horizontal bed state which is smoothly continuous with a seat surface of the seat portion. , From the upright state to the reclined state, and then to the substantially horizontal bed state so that it can be tilted back and forth. The backrest guide member supports the backrest guide member from the upright state to the reclined state when tilted from the front upright state to the rearward state, and the backrest in the reclined state. A seat device for a vehicle, comprising: a guide portion for guiding a backrest from a reclining state to a bed state when being dragged by a seat portion and moving forward. 2. A seating device for a vehicle, wherein a backrest is largely tilted rearward so that a backrest surface of the backrest becomes a substantially horizontal bed state which is smoothly continuous with a seating surface of the seating portion. And connecting the backrest from the standing state to the substantially horizontal bed state via the reclining state, supporting the backrest guide member at a fixed portion of the seat, wherein the backrest guide member is in the reclined reclined state. A seat device for a vehicle, comprising: a guide portion for guiding a backrest from a reclining state to a bed state when the vehicle is dragged by a seat portion and moves forward. 3. The vehicle seat device according to claim 1, wherein the backrest guide member is driven by a guide member drive mechanism between a forwardly raised state and a backwardly inclined state. 4. A seat is provided on a pallet or a floor reinforcing member provided on a floor of a vehicle, and is disposed on both sides of the seat portion, and is provided on the pallet or the floor reinforcing member. The fixing part or armrest member is
A seat driving mechanism for driving the seat; a rack member extending in the front-rear direction on the pallet; and meshing with the rack member. 4. The vehicle seat apparatus according to claim 1, further comprising: a pinion to be rotated; and a drive motor that rotates the pinion forward and backward to move the seat forward and backward. 5. A leg rest body is rotatably supported at a front end portion of the seat portion between a hanging state and a horizontal state, and the leg rest body is interlocked with the advancing seat portion to move the horizontal from the hanging state. 5. The vehicle seat device according to claim 1, further comprising a leg rest drive mechanism that rotates to a state.