JP2007112190A - Vehicle seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seat for a vehicle fitted on an automobile and the like for providing a relaxed state by simple operation. <P>SOLUTION: A front seat back 10a and a front seat cushion 10b are provided at a front seat 10, and a posture change means for changing a posture of a rear seat, and a canopy 60 covering the head of an occupant are provided to a rear seat 20. When the rear seat 20 is operated into a relaxed state, the front seat 10 is brought into a state corresponding to the relaxed state, and then the posture change means and the canopy 60 are actuated into the relaxed state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a vehicle seat used for an automobile or the like, and more particularly to a vehicle seat that is in a relaxed state.

  Conventionally, automobiles have a front seat and a rear seat, and the rear seat has a ottoman that lifts the legs to relax, a folding mechanism to match the shape of the back, and a canopy that creates a private space for the seated person It has. For example, Japanese Patent Application Laid-Open No. 2005-96644 discloses a vehicle equipped with an ottoman.

Further, an operation box for operating an ottoman, a folding mechanism, and a canopy is provided at the front portion of the rear seat, and an ottoman button, a folding mechanism button, and a canopy button are provided on the operation box.
When the seated person sitting on the rear seat presses the ottoman button to relax, the ottoman lifts and lifts his / her foot. In addition, when the folding mechanism button is pressed, the folding mechanism of the rear seat is activated, the middle of the rear seat bends to match the bending of the back, and when the canopy button is pressed, the canopy covers the head of the seated person and relaxes. it can.

JP 2005-96644 A

As described above, in order to operate the ottoman, the folding mechanism, and the canopy, it is necessary to operate each operation button provided in the operation box, so that the seated person is troublesome to operate.
Therefore, the present invention provides a vehicle seat that can be brought into a relaxed state by a simple operation when a vehicle occupant enters the relaxed state.

The vehicle seat according to claim 1 includes a front seat and a rear seat, the front seat is provided with a front seat back and a front seat cushion, and the rear seat has posture changing means for changing the posture of the rear seat and a seated person's seat. It has a canopy that covers the head.
When the rear seat is operated to be in a relaxed state, the posture changing means and the canopy are actuated in a relaxed state after the front seat is brought into a state corresponding to the relaxed state.
According to a second aspect of the present invention, the vehicle seat is a middle folding mechanism, an ottoman mechanism, a rear seat cushion, or a combination thereof as the posture changing means.
According to a third aspect of the present invention, in the vehicle seat, when the rear seat is operated to be in a relaxed state, the posture changing means is operated, then the canopy is operated, and when the operation for releasing the relaxed state is performed, the canopy is operated and the posture changing means is Is activated.

The invention of the vehicle seat according to claim 1 can be performed from a normal state to a relaxed state by so-called one-touch.
In addition, since the invention of the vehicle seat of claim 2 can be constituted by a middle folding mechanism, an ottoman mechanism, a rear seat cushion, or a combination thereof as the posture changing means, various relaxed postures can be taken depending on which one is selected. Can do.
The vehicle seat according to claim 3 does not prevent the seated person from getting on and off by the operation of the posture changing means and the canopy.

The invention of the present application will be described with reference to the accompanying drawings.
1 and 2 show a front seat 10 and a rear seat 20 arranged in a vehicle interior, FIG. 1 is a view of a seated person in a relaxed state, and FIG. 2 is a view of a normal state.
The front seat 10 includes a front seat back 10a and a front seat cushion 10b. The front seat cushion 10b is attached to a front slider 12 that can move back and forth with respect to the floor of the vehicle. The front slider 12 moves back and forth via a front slide motor 12a.
The front slide motor 12a counts the number of forward and reverse rotations, and it is possible to determine which position the front seat cushion 10b is on the front slider 12. That is, the forward / reverse rotation speed of the front slide motor 12a indicates the position of the front seat cushion 10b with respect to the vehicle floor, and constitutes a front seat cushion position detector.

A seating detector 14 is attached to the front seat cushion 10b to detect whether a seated person is sitting. As will be described in detail later, this seating detector 14 is an element for safety.
The front seat back 10a includes a mechanism that tilts forward and backward with reference to the right end (rear end) of the front seat cushion 10b. The forward / backward tilt mechanism is operated via a feed screw (not shown) by rotation of the front reclining motor 13.
The front reclining motor 13 counts the number of forward and reverse rotations so that the tilting position (angle) of the front seat back 10a can be known, and the front seat back detector detects the position of the front seat back 10a. Is configured.

Next, the rear seat 20 on which the seated person 100 is seated in a relaxed state will be described with reference to FIG. The rear seat 20 includes a rear seat back 20a and a rear seat cushion 20b.
Further, as the posture changing means for changing the rear seat 20 to relax, the rear seat cushion, the ottoman mechanism, and the middle folding mechanism may be configured independently, or may be configured in an appropriate combination.
Further, a well-known ottoman 21 is attached to the end portion of the rear seat cushion 20b, which is in a normal state perpendicular to a horizontal use state where a foot can be placed, and the ottoman 21 is interposed via an ottoman motor 21a. It can be turned by a turning mechanism.
This rotation mechanism is constituted by a link, and a main link 26 that is pin-coupled to the support shaft 25 and a pin-link between the main link 26 and the support frame 28 of the ottoman main body 27 constitute a four-bar link. There are provided swing links 29a and 29b and an operation link 30 that is pin-coupled to one swing link 29b and swings the swing links 29a and 29b. Further, the end of the operation link 30 is pin-coupled to the base member 31, and the end of the base member 31 is coupled to the support shaft 25 so as to be rotatable.

When the ottoman motor 21a is rotated in the forward direction, the main link 26 rotates counterclockwise around the support shaft 25, and the swing links 29a and 29b, the operation link 30 and the base member 31 rotate by pin coupling. Move and put the ottoman 21 as shown in FIG.
On the other hand, when the ottoman motor 21a is rotated in the reverse direction, the main link 26 rotates clockwise around the support shaft 25, and the swing links 29a and 29b, the operation link 30 and the base member 31 rotate by pin connection. Then, the normal state is established (FIG. 2).
Note that an ottoman detector that detects the position (state) of the ottoman 21 in use or in a normal state is configured by counting the number of rotations of the ottoman motor 21a. The ottoman 21, the ottoman motor 21a, and the link mechanism constitute an ottoman mechanism.

The rear seat cushion 20b is attached to a rear slider 35 that can move back and forth with respect to the floor of the vehicle. The rear slider 35 moves back and forth via a rear slide motor 35a. Accordingly, the rear seat cushion 20b moves back and forth by the rotation of the rear slide motor 35a.
Further, a front connecting rod 40 that operates in response to the longitudinal movement of the rear seat cushion 20b, and a rear connecting rod 41 that is connected to the front connecting rod 40 by a connecting member 43 are attached. The front connecting rod 40 is provided on the rear seat cushion 20b side, the rear connecting rod 41 is provided on the rear seat back 20a side, and a fixed rotating shaft 42 is formed at the lower end of the rear connecting rod 41. A guide groove 45 is formed at the other end.

When the rear seat cushion 20b moves back and forth, the front connecting rod 40 moves in conjunction with it, and the connecting member 43 rotates about the fixed rotation shaft 42 as the front connecting rod 40 moves. With this rotation, the rear connecting rod 41 rotates while being guided by the guide groove 45, and the rear seat back 20a is inclined (FIG. 1).
The position of the rear seat cushion 20b relative to the floor can be determined by the number of rotations of the rear slide motor 35a, thereby constituting a rear seat cushion detector that detects the position of the rear seat cushion 20b.

Next, the middle folding mechanism of the rear seat back 20a will be described.
The rear seat back 20 a is provided with a lower connecting rod 50 and an upper connecting rod 51, which are rotatably connected by a rotating shaft 52. Therefore, the lower connecting rod 50 can be freely rotated by the rotation shaft 52.
Further, a feed screw 54 is provided via a folding motor 53, and the upper connecting rod 51 is rotated by the rotation shaft 52 by the feed screw 54.
Accordingly, depending on the position of the upper connecting rod 51, the rear seat back 20a is in a predetermined inclined state around the rotation shaft 52 (FIG. 1), and when the folding motor 53 is rotated in reverse, as shown in FIG. In addition, the rear seat back 20a is in a position where the seated person is seated in a normal state.
Note that, by counting the number of rotations of the middle folding motor 53, a middle folding detector is configured to determine whether or not the rear seat back 20a is in the middle folding state.

A canopy 60 is attached to the top of the rear seat back 20a, and the canopy 60 covers the seated person's head so that it can be relaxed or can be stored behind the rear seat back 20a.
A canopy motor 61 is attached to the center of the rear seat back 20a, and the rotational force is transmitted via the lower pulley 62 to the upper pulley 63 installed on the lower pulley 62 via the belt 64. A first guide rod 66 is attached to the rotating shaft 65 of the upper pulley 63, and the other end is fixed to the canopy 60. A second guide rod 68 is rotatably attached to a support plate 67 fixed to the rotary shaft 65, and the other end is fixed to the canopy 60.

When the canopy motor 61 is rotated in the reverse direction, the lower pulley and the upper pulley are rotated, the first guide rod 66 is rotated in the clockwise direction, and the second guide rod 68 is also rotated in the clockwise direction. Is stored behind the rear seat back 20a from above the head. Further, when the canopy motor 61 is rotated in the forward direction, the operation is opposite to that described above, and the canopy 60 reaches the seated person's head from the rear side of the rear seat back 20a.
It should be noted that a canopy detector that detects whether the canopy 60 is in the storage position or in use according to the rotation speed of the canopy motor 61 is configured.

Next, the operation of the ottoman, the folding mechanism, and the canopy for achieving a relaxed state in the above configuration will be described.
As shown in FIG. 3A, an operation box 98 for operating an ottoman, a folding mechanism, and a canopy is provided at the front portion of the rear seat. The operation box 98 includes an ottoman button 90 for manual operation (single operation), a folding mechanism button 91, a canopy button 92, an automatically changing relax button 93, and an emergency stop button 95.

Each of the buttons 90, 91, 92, 93 is configured to rotate in the opposite direction when the motor rotation is started first, and to change the state each time it is pressed. When pressed, all of the motors that are currently moving and the motors that run thereafter are stopped.
When each button 90, 91, 92, 93 is pressed, the rotation speed of each motor is determined in advance, and is controlled to stop when the rotation speed reaches a predetermined rotation speed.

FIG. 3B shows a control block. A control device (comprising a CPU, RAM, ROM, etc.) includes a front seat cushion position detector, a front seat back detector, a seating detector 14, and an ottoman detector. , A signal from the rear seat cushion detector, the folding detector, and the canopy detector is input, and the front slide motor 12a, the front reclining motor 13, the ottoman motor 21a, the rear slide motor 35a, and the folding motor 53 are input in accordance with a control flow described later. , And the canopy motor 61 is controlled.
Although each detector is performed at the number of rotations of the motor, it may be configured to detect each position (angle) with a limit switch, a phototube or the like.

(Single operation)
This single operation is abbreviated to indicate a control flow.
(1) Ottoman operation When a seated person sitting on the rear seat presses the ottoman button 90 to relax, the ottoman motor 21a rotates forward, and the ottoman 21 shown in FIG. .
When the ottoman button 90 is pressed again, the ottoman motor 21a rotates in the reverse direction, and the ottoman 21 enters the normal state shown in FIG.
Incidentally, when the ottoman button 90 is pressed, it operates independently of the position of the front seat cushion 10b, unlike a later-described relax button 93.

(2) Middle folding mechanism When the middle folding button 91 is operated, the middle folding mechanism of the rear seat back 20a is activated along with the movement of the rear seat cushion 20b.
Specifically, first, the rear slide motor 35a rotates forward to move the rear seat cushion 20b. Thereafter, the folding motor 53 is rotated forward, the upper connecting rod 51 is rotated by the rotation shaft 52, and the rear seat back 20a is inclined in a predetermined state.
Next, when the folding button 91 is operated again, the folding motor 53 rotates in the reverse direction, and the reverse operation is performed, and the rear seat back 20a is inclined to another predetermined state. The rear slide motor 35a rotates in reverse to return the rear seat cushion 20b to its original state.
Incidentally, when the folding button 91 is pressed, unlike the later-described relax button 93, the button is operated regardless of the position of the front seat cushion 10b.

(3) Canopy When the canopy button 92 is pressed, the canopy motor 61 rotates in the reverse direction, and the canopy 60 is stored from the seated person's head to the back side of the seat back 20a.
Further, when the canopy button 92 is pressed, the canopy motor 61 rotates forward, and the canopy 60 reaches the seated person's head from the rear side of the rear seat back 20a and covers the head.

(4) Relax Button FIG. 4 shows a control flow when the relax button 93 is pressed.
First, it is determined whether or not the relax button 93 has been pressed (S1). When the relax button 93 is pressed, the seat detector 14 determines whether or not a seated person is sitting on the front seat 10 (S2). When the seated person is sitting, an alarm is sounded ( S3) Either control is performed to stop the operation in order to ensure safety, or each device to be in a relaxed state is operated after confirming the safety.
In this embodiment, the process proceeds to S4 after an alarm is sounded to confirm safety.
In S4, it is determined whether F = 0. When F = 0, it indicates that the current state is normal, and when F = 1, it indicates that the current state is the rack state.

In S4, when F = 0, since the normal state is changed to the relaxed state, it is determined from the front seat cushion position detector and the front seat back detector whether the front seat is in the relaxed state (S5).
In the normal state shown in FIG. 2 (normal state), when the position of the front seat cushion 10b is inclined to the rear side and the front seat back 10a is also inclined to the rear side, the front slide motor 12a and the front reclining motor 13 are moved. Start up (S6), enter the relaxed state shown in FIG. 1, and return to S5.

On the other hand, when the front seat cushion 10b and the front seat back 10a are already in the relaxed state, the process proceeds to S7.
In S7, it is determined whether or not the rear seat 20 is in a relaxed state from the rear seat cushion detector, the middle break detector, and the ottoman motor 21a.
When not in the relaxed state, the rear slide motor 35a is started, then the half-turn motor 53 is started, then the ottoman motor 21a is started (S6A), and after returning to the relaxed state, the process returns to S7.

On the other hand, when in the relaxed state in S7, the canopy motor 61 is activated (S8).
Then, when the canopy motor 61 reaches a predetermined number of revolutions, it stops, and F = 1 is set and the process ends (S9). Since F = 1 is set at the end, when the relax button 93 is pressed next time, the process starts from S10.

After S10, the control returns from the relaxed state to the normal state. In S10, it is determined whether or not the canopy 60 is in the relaxed state.
When the canopy 60 is in a relaxed state, the canopy motor 61 is activated to bring the canopy 60 into a normal state (S11). On the other hand, when the canopy 60 is in the normal state, the process proceeds to S12.

Next, it is determined whether or not the rear seat 20 is in a relaxed state (S12). If the rear seat 20 is in a normal state, the process proceeds to S14. On the other hand, when in the relaxed state, the folding motor 53 is activated to the normal state, and thereafter (or simultaneously) the rear slide motor 35a is activated to the normal state (S13).
Next, it is determined whether or not the front seat 10 is in a relaxed state (S14). If the front seat 10 is in a normal state, the process proceeds to S16. On the other hand, when the vehicle is in the relaxed state, the front slide motor 12a is activated to return the front seat cushion 10b to the normal state, and thereafter (or simultaneously) the front reclining motor 13 is activated to bring the front seat back 10a to the normal state. (S15). Then, F = 0 is set and the process ends (S16).

As described above, every time the relaxation button 93 is pressed, the state can be changed alternately between the relaxed state and the normal state, which is convenient.
For example, when changing from the normal state to the relaxed state, the following operations are performed after determining the position (state) of the front seat back 10a and the like. In consideration of the configuration and the like, it is selected as appropriate. That is, since which device is operated and then which other device is operated differs depending on the component device, conditions are set according to the configuration of those devices.

It is a relaxed state figure of the front seat and rear seat which are arranged in the room of a vehicle. It is a normal state figure of the front seat and rear seat which are arranged in the room of a vehicle. (A) is an operation box, (B) is a control block diagram. It is a control flowchart.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Front seat 12a Front slide motor 13 Front reclining motor 14 Seat detector 20 Rear seat 21a Ottoman motor 35a Rear slide motor 53 Middle folding motor 61 Canopy motor

Claims (3)

Place the front seat and rear seat,
The front seat is provided with a front seat back and a front seat cushion,
The rear seat is a vehicle seat comprising posture changing means for changing the posture of the rear seat and a canopy covering the head of the seated person,
If you operate the rear seat in a relaxed state,
A vehicle seat characterized in that after the front seat is brought into a state corresponding to a relaxed state, the posture changing means and the canopy are operated in a relaxed state.   2. The vehicle seat according to claim 1, wherein the posture changing means is a folding mechanism, an ottoman mechanism, a rear seat cushion, or a combination thereof. The operation of bringing the rear seat into a relaxed state activates the posture changing means and then actuates the canopy, and the operation of releasing the relaxed state activates the canopy and subsequently activates the posture changing means. The vehicle seat according to claim 1 or 2.

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