JP2001063419A - Jumping-up controller for vehicular seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To regulate unnecessory tilt-up, to secure the tilt-up in a prescribed condition to enhance operability, to simplify constitution, to reduce a cost, to enhance using convenience, and to realize various seat arrangement. SOLUTION: A vehicular seat 2 constituted by attaching turnably a backseat 4 to a seat 3 via a reclining device is attached to a flooe face 1 to be movable longitudinally via a slide rail S. The seat 2 is attached to the floor face 1 by a hinge mechanism 10 to allow a rear part of the slide rail S to be turnale vertically. A lock mechanism 12 for locking the turn of the slide rail S is provided between the rear part of the slide rail S and the floor face 1. The lock mechanism 12 is released in a prescribed position of the seat 2 and in a condition where the backseat 4 is turned down frontwards.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention controls tilting of a vehicle seat in which a backrest seat is tilted forward and a rear portion of the vehicle seat is pivoted upward about a front portion of the vehicle seat. It concerns the device.

[0002]

2. Description of the Related Art Conventionally, a vehicle seat in which a backrest seat is rotatably mounted on a seat seat via a reclining device is provided with an upper rail mounted on the seat seat and a lower rail fitted with the upper rail. The lower rail is attached to the floor surface via a slide rail having a lock device for fixing the upper rail at an arbitrary position so as to be movable back and forth. A configuration in which a lock mechanism for locking the rotation of the lower rail is provided between the rear portion of the lower rail and the floor surface is known.

[0003]

The above-mentioned known example simply comprises:
Since the rear part of the vehicle seat is locked by the lock mechanism, there is a problem that if the lock mechanism is unlocked by mistake, the tilt-up occurs. By devising this lock mechanism, unexpected tilt-up can be restricted.

[0004]

It is an object of the present invention to control unnecessary tilt-up, secure tilt-up in a predetermined state, improve operability, simplify the configuration, reduce costs, improve usability, and realize various seat arrangements.

[0005]

According to the present invention, a seat 3 is provided.
A vehicle seat 2 having a backrest seat 4 rotatably attached thereto via a reclining device, an upper rail 5 attached to the seat seat 3, a lower rail fitted with the upper rail 5, and the upper rail 5 is attached to the floor 1 via a slide rail S having a lock device for fixing the slide rail 5 at an arbitrary position, and the front side of the slide rail S is pivotally moved up and down by a hinge mechanism 10 so that the rear part thereof can be turned up and down. A lock mechanism 12 is mounted on the floor surface 1 and locks the rotation of the slide rail S between the rear of the slide rail S and the floor surface 1. In addition, the vehicle seat flip-up control device is configured so that the backrest seat 4 can be unlocked in a state of falling forward. The present invention is configured such that the lock mechanism 12 can release the lock by detecting that the vehicle seat 2 is located at a predetermined position by a predetermined position detecting means 46 provided between the upper rail 5 and the lower rail 6. This is a vehicle seat flip-up control device. In the present invention, the lock mechanism 12 is configured to be able to release the lock by detecting the forward leaning state of the backrest seat 4 by the forward leaning detection unit 45 provided between the backrest seat 4 and the seat 3. This is a vehicle seat jumping-up control device. In the present invention, at a predetermined position of the lower rail 6, an operation restricting means 28 for restricting the rotation of the latch 16 of the lock mechanism 12 is provided, and the upper rail 5 is released from the restriction for unlocking the operation restricting means 28. Body 4
This is a vehicle seat jumping control device provided with 0. According to the present invention, the backrest sheet 4 is provided with an abutting portion 55 that moves when the backrest sheet 4 is tilted forward, and a forward-moving detection body 53 that is activated when the tilting portion is moved forward is faced on the moving path of the contact portion 55. The lock mechanism 12 is a vehicle seat flip-up control device that is configured to be unlockable by the operation of the forward tilt detection body 53.
The present invention relates to a vehicle seat 2 having a backrest seat 4 rotatably mounted on a seat 3 via a reclining device, and an upper rail 5 mounted on the seat 3.
And a lower rail 6 fitted with the upper rail 5.
And a slide rail S having a lock device for fixing the upper rail 5 at an arbitrary position so as to be movable back and forth on the floor surface 1. The slide rail S is hinged at its front side so that its rear part can be turned up and down. It is attached to the floor 1 by the mechanism 10, and the rear part of the lower rail 6 and the floor 1
And a lock mechanism 12 for locking the rotation of the slide rail S, the lock mechanism 12 engages with a striker 18 provided on the floor surface 1 side, and stops the rotation of the latch 16. Ratchet 20 and regulator 3
1, an operating means for releasing the ratchet 20, and an operation restricting means 28 for restricting and operating the release of the restricting body 31. The operation restricting means 28 is provided when the vehicle seat 2 is at a predetermined position and the This is a vehicle seat flip-up control device configured to be able to release the lock when the backrest seat 4 is tilted forward. In the present invention, the operation restricting means 28 attaches the restricting body 31 to one end of a restricting arm 32 that is supported on the lower rail 6 by a mounting shaft 33, and the restricting body 31 is connected to the restricting step 30 of the latch 16. This is a vehicle seat flip-up control device configured to be detached. According to the present invention, the upper rail 5 is provided with a restriction releasing body 40 that protrudes downward when the backrest sheet 4 is in a forwardly inclined state, and the restriction releasing body 40 is provided when the vehicle seat 2 is located at a predetermined position. The regulation arm 3
This is a vehicle seat flip-up control device that is configured to rotate the rotating body 2 to release the regulating body 31. In the present invention, the seat 3 is provided with a forward leaning detector 53 that rotates when the backrest seat 4 is in a forward leaning state. This is a vehicle seat jumping-up control device connected so as to protrude downward when it falls down. According to the present invention, when the regulation release body 40 faces above the regulation arm 32, the regulation release state is set, so that the vehicle seat 2 is controlled by the regulation release body 40 and the regulation arm 32.
This is a vehicle seat flip-up control device configured to also serve as the predetermined position detecting means 46 for detecting the predetermined position of the vehicle.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
Denotes a vehicle floor, and a vehicle seat 2 is provided on the floor 1. The vehicle seat 2 has a backrest seat 4 attached to a seat 3 via a known reclining device (not shown) so as to be rotatable between a front leaning state and an upright state with a predetermined inclination angle and a rearward inclination state, and a tilt angle. Is adjustable. The seat 3 is a known slide rail S.
The upper rail 5 is slidably fitted to the lower rail 6, and is fixed at a desired position by a lock mechanism (not shown) for stopping the forward / backward movement of the upper rail 5. Then, the lower rail 6
Is attached to the floor 1 by a hinge mechanism 10 at the front side, and the rear part of the lower rail 6 is
1 upward rotation (upward rotation in the front-rear direction,
A person skilled in the art is referred to as “bounce-up” or “tilt-up”. A lock mechanism (tilt-up lock mechanism) is provided between the rear portion of the lower rail 6 and the floor 1.
12 are provided. A lower bracket 15 is provided on a side surface of the lower rail 6, and a latch 16 is rotatably mounted on the lower bracket 15 by a latch shaft 17. The latch 16 is provided with a striker engaging groove 19 for engaging a striker 18 provided on the floor 1, and a ratchet engaging step 21 for engaging a ratchet 20 provided near the latch 16.
Is provided. Reference numeral 22 denotes a spring provided between the latch 16 and the ratchet 20. The spring 22 urges the ratchet 20 so as to always engage with the ratchet engaging step 21, and the ratchet 20 moves from the ratchet engaging step 21 to the ratchet engaging step 21. When detached, the latch 16 is constantly urged to rotate in the opening direction of the striker 18.

The tilt-up lock mechanism 12 prevents the rear portion of the seat 3 from tilting up by locking the striker 18 and the latch 16. Thus, the tilt-up lock mechanism 12 is provided with an operation restricting means (tilt-up operation restricting means) 28 for disabling a tilt-up (bounce-up operation) operation except at a predetermined position. The tilt-up operation restricting means 28 is provided with a restricting step (tilt-up restricting step) 30 on the outer periphery of the latch 16 for preventing the vehicle seat 2 from tilting up at a position other than a predetermined position. Engages the regulating body (tilt-up regulating body) 31 so as to be freely detachable. The tilt-up regulating body 31 is attached to a lower part of a regulating arm (tilt-up regulating arm) 32, and the tilt-up regulating arm 32 is attached to a mounting shaft 33.
To be rotatably attached to the lower bracket 15. A spring 34 is provided between the tilt-up regulating arm 32 and the fixed portion (lower bracket 15), and urges the tilt-up regulating body 31 to always engage with the tilt-up regulating step 30. An arm contact portion 35 is provided above the tilt-up regulating arm 32, and the arm contact portion 35 faces below the tilt-up regulation release body 40. The tilt-up restriction releasing body 40 is rotatably mounted on the upper rail 42 on the upper rail 5 by means of a horizontal axis 41, and the horizontal axis 41 is provided with a spring 43 so that the tilt-up restriction releasing body 4 is provided.
0 always rotates upward and urges it away from the arm contact portion 35. Further, the contact portion 39 on the far side of the tilt-up regulation release body 40 is brought into contact with the bracket 42 to be positioned at a predetermined position.

Since the tilt-up restriction releasing body 40 moves back and forth together with the upper rail 5, the tilt-up restriction releasing body 40 is moved to the front and rear portions of the tilt-up restriction releasing body 40 in order to smoothly contact the arm contact portion 35 with the movement. Form a guide inclined surface 44. That is, when the backrest sheet 4 is turned forward by the tilting detecting unit 45 described later, the tilt-up restriction releasing body 40 rotates downward and comes into contact with the tilt-up restricting arm 32.
And release the lock by the striker 18 from the latch 16.
If the backrest sheet 4 is in the forward tilted state in a state in which is opened, the tilt-up restriction release body 40 contacts the tilt-up restriction arm 32 and engages with the tilt-up restriction step 30 of the latch 16. When the tilt-up restricting body 31 is released, the vehicle seat 2 is tilted up. From this point, the tilt-up restricting release body 40 and the tilt-up restricting arm 32 allow the vehicle seat 2 to be tilted up. The predetermined position detecting means 46 for detecting the predetermined position is also configured. Thus, the lower part of the rod 47 is connected to the tilt-up restriction releasing body 40, and the upper part of the rod 47 is connected to the forward tilting detector 45.
Thus, the tilt-up operation restricting means 28 is configured to release the lock of the tilt-up lock mechanism 12 only when the backrest sheet 4 is in the forward leaning state.

The forward-moving detecting section 45 has a U-shaped mounting section 52 provided on the seat bracket 48, and a shaped forward-moving detecting body 53 is rotatably mounted on the mounting section 52 by a shaft 54. The upper part of the rod 47 is attached to one end of the forward leaning detector 53, and the other end of the forward leaning detector 53 faces the rotation locus position (moving path) of the contact portion 55 provided on the backrest sheet 4. When the seat 4 is moved forward, the contact portion 55 rotates the forward detecting body 53, thereby pulling the rod 47, and the rod 47 moves the tilt-up regulation release body 40 to the arm contact section 35 of the tilt-up regulation arm 32. Rotate to the contact position. Reference numeral 56 designates the forward leaning detection body 53 and the backrest sheet 4 at all times.
Is a spring that urges to rotate in the direction of the detection position at the time of falling forward.

[0010]

Next, the operation will be described. (Sliding back and forth) The vehicle seat 2 has a slide rail S
When the lock device of the lock device is released, the upper rail 5 can be set in a free state with respect to the lower rail 6 and can be moved back and forth. When the operating lever of the lock device is released at a desired position, the upper rail 5 is moved to the lower rail at this position. 6
Fixed to. In this case, the tilt-up lock mechanism 12 is provided with the tilt-up operation restricting means 28 for disabling the tilt-up (bounce-up operation) operation at positions other than the predetermined position. Even if the unlock operation of 20 is performed, the tilt cannot be raised. That is, since the tilt-up restricting body 31 is engaged with the tilt-up restricting stepped portion 30 of the latch 16, even if the ratchet 20 is unlocked, the tilt cannot be raised.

By the movement of the vehicle seat 2, the "temporarily" tilt-up restricting release body 40 comes into contact with the arm contact portion 35 of the tilt-up operation restricting means 28, and the tilt-up restricting body 31 is tilted. Up regulation step 30
The ratchet engaging step 2 of the latch 16 is
Since the ratchet 20 is engaged with 1, the tilt-up lock mechanism 12 is in the locked state because the ratchet 20 is engaged with the ratchet engaging step 21 of the latch 16 unless an unlock operation is performed. In this case, the lower rail 6 does not tilt up (in this case, the state in which the tilt-up restriction canceling body 40 contacts the arm contact portion 35 of the tilt-up operation restricting means 28 will be described later with a reclining device).

When the operating lever of the reclining device is operated to release the locking device of the reclining device, the backrest seat 4 is free to rotate with respect to the seat 3 and is rotated in the front-rear direction. By moving the backrest seat 4, the inclination angle of the backrest seat 4 can be adjusted. When the operation lever is released at a desired position, the backrest seat 4 is fixed to the seat 3 at this inclination angle. In this case, the tilt-up lock mechanism 12 disables the tilt-up (bounce-up operation) operation except at a predetermined position.
8, when the vehicle seat 2 is at a position other than the predetermined position, the backrest seat 4 is tilted forward and the ratchet 20 is
Unable to tilt up by unlocking

That is, the tilt-up regulating body 31 is
6, the ratchet 20 cannot be tilted up even if the ratchet 20 is unlocked. When the backrest sheet 4 falls forward, the contact part 55 of the backrest sheet 4 rotates, and the contact part 55 comes into contact with one end of the forward leaning detection body 53, and rotates the forward leaning detection body 53 about the axis 54. And the forward-moving detection body 53 is rotated to
, The rod 47 rotates the tilt-up restriction releasing body 40 about the horizontal axis 41, and the tilt-up restriction releasing body 4
0 is the arm contact portion 35 of the tilt-up operation restricting means 28
However, when the vehicle seat 2 is not located at the predetermined position where the tilt-up lock mechanism 12 is provided, the tilt-up restriction releasing body 40 swings with respect to the tilt-up operation restricting means 28. From, as before,
The tilt-up restricting body 31 does not engage with the tilt-up restricting step 30 of the latch 16 to tilt up.

(Tilt-up) As described above, even if the vehicle seat 2 is slid or the backrest sheet 4 is tilted forward, the vehicle does not tilt up. When the backrest sheet 4 is tilted forward and the ratchet 20 is unlocked, the tilt can be raised.
That is, when the locking device for the slide rail S is released and the vehicle seat 2 is positioned at a predetermined position, the tilt-up restriction release body 40 provided on the upper rail 5 causes the tilt-up lock mechanism 12 of the lower rail 6 to tilt-up. The tilt-up restriction canceling body 4 faces above the operation restricting means 28.
0 indicates that the tilt-up operation restricting means 28 can be operated. Therefore, the predetermined position detecting means 46 constituted by the tilt-up restriction canceling body 40 and the tilt-up restriction arm 32 has detected that the vehicle seat 2 is located at the predetermined position.

When the backrest sheet 4 is moved forward,
This is detected by the forward tilt detection unit 45, and the tilt-up restriction canceling body 40 is actuated. Therefore, the tilt-up restriction canceling body 40 rotates the tilt-up operation restricting means 28 so that the tilt-up restricting body 31 It is retracted from the tilt-up regulating step 30. Therefore, the regulation of the tilt-up lock mechanism 12 is released, and when the operation lever of the tilt-up lock mechanism 12 is operated in this state, the ratchet 20 is disengaged from the ratchet engagement step 21 of the latch 16 and the latch 16 is rotated. Then, the engagement with the striker 18 is released. Next, when the rear portion of the vehicle seat 2 is lifted, the vehicle seat 2 is rotated by the pivot shaft 1 of the front hinge mechanism 10.
It pivots forward about one center and tilts up. As described above, since the tilt-up lock mechanism 12 locks the latch 16 by the two means of the ratchet 20 and the tilt-up restricting body 31, the tilt-up cannot be performed unless a predetermined operation is performed at a predetermined position. Prevents sudden tilt-up.

Further, as described above, when the tilt-down control release unit 40 detects the state in which the backrest sheet 4 is tilted forward, the tilt-up control release unit 40 pivots downward and comes into contact with the tilt-up control arm 32. Then, if the backrest sheet 4 is in the forward tilted state, the tilt-up regulation release body 4
0 contacts the tilt-up regulating arm 32 and the latch 1
Since the tilt-up restricting body 31 engaged with the tilt-up restricting step 30 of FIG. 6 is disengaged, from this point, the predetermined position of the vehicle seat 2 is moved by the tilt-up restricting releasing body 40 and the tilt-up restricting arm 32. The predetermined position detecting means 46 for detecting is constituted. Therefore, since the predetermined position detecting means 46 also serves as a part of the tilt-up regulating mechanism,
Reduce the number of parts. Thus, the tilt-up operation restricting means 28 releases the restriction by the tilt-up restriction releasing body 40, and the tilt-up restriction releasing body 40
Operates when it detects that the backrest sheet 4 has been moved forward, so that the entire structure can be rationalized.

Thus, even if the backrest sheet 4 is tilted forward at a predetermined position (the movement order of the vehicle seat 2 and the operation of tilting the backrest sheet 4 forward does not matter, as described above), it is consciously tilted. Unless the ratchet 20 of the up-lock mechanism 12 is operated, the lock of the tilt-up lock mechanism 12 is not released, so that the backrest sheet 4 can be used with the seat leaned forward, and the seat arrangement range is expanded. The tilt-up lock mechanism 12 may be provided at a desired position on the lower rail 6, and may be provided on the front side by replacing the hinge mechanism 10 with the front and rear. The position where the tilt-up lock mechanism 12 is provided can be tilted up. A predetermined position. Thus, if the tilt-up lock mechanism 12 is provided at the rear of the lower rail 6, the tilt-up can be made possible when the vehicle seat 2 is moved to the rearmost position. Further, when the tilt-up lock mechanism 12 is provided at a predetermined front side position of the lower rail 6, a configuration in which the tilt-up is enabled when the vehicle seat 2 is moved to the frontmost position can be easily performed. Therefore, it is possible to prevent a problem that occurs when the vehicle seat 2 is tilted up due to contact or interference with the floor surface due to the shape of the floor surface. When the backrest sheet 4 in the forwardly tilted state is raised, the detection body 53
Is urged by the spring 56 to return to the detection position, so that the detection body 53 returns together with the return of the contact portion 55. Further, since the tilt-up regulation releasing body 40 is also released from being pulled by the detecting body 53, the tilt-up regulation releasing body 40 is rotated upward by the elastic force of the spring 43, and the contact portion 39 on the back side of the tilt-up regulation releasing body 40 comes into contact with the bracket 42. Then, the rotation stops. Therefore, since the detection body 53 and the tilt-up regulation release body 40 are always urged by the spring and stopped,
Rattling is prevented.

[0018]

According to the present invention, a vehicle seat 2 comprising a seat back 3 and a backrest seat 4 rotatably mounted via a reclining device is provided with an upper rail 5 mounted on the seat 3 and an upper rail 5. Is mounted on the floor 1 via a slide rail S having a lock device for fixing the lower rail fitted with the lower rail and the upper rail 5 at an arbitrary position, and the rear part of the slide rail S rotates up and down. As described above, a lock mechanism 12 for locking the rotation of the slide rail S between the rear part of the slide rail S and the floor 1 is provided between the rear portion of the slide rail S and the floor surface 1 by attaching the front side to the floor 1 by the hinge mechanism 10. Means that the vehicle seat 2 can be unlocked when the vehicle seat 2 is at a predetermined position and the backrest seat 4 is tilted forward. Since it is obtained by the control device, to prevent the sheet splashing sudden (tilt-up), contact with the floor surface when splashed to prevent problems arising from interference or the like. According to the present invention, the lock mechanism 12 includes a predetermined position detecting means 4 provided between the upper rail 5 and the lower rail 6.
6, the vehicle seat jumping-up control device is configured so that the vehicle seat 2 can be unlocked by detecting that the vehicle seat 2 is located at a predetermined position. To prevent In the present invention, the lock mechanism 12 is configured to be able to release the lock by detecting the forward leaning state of the backrest seat 4 by the forward leaning detection unit 45 provided between the backrest seat 4 and the seat 3. Since the vehicle seat jumping control device is used, the seat back is prevented from jumping up when the backrest sheet 4 is not tilted forward, thereby preventing the occurrence of a problem. The present invention
The lock mechanism 1 is located at a predetermined position of the lower rail 6.
A vehicle seat flip-up control device provided with an operation restricting means for restricting the rotation of the second latch 16 and a restriction releasing body 40 provided on the upper rail 5 for unlocking the operation restricting means 28; Therefore, the sheet jumping up is controlled with a simple configuration. According to the present invention, the backrest sheet 4 is provided with an abutting portion 55 that moves when the backrest sheet 4 is tilted forward, and a forward-moving detection body 53 that is activated when the tilting portion is moved forward is faced on the moving path of the contact portion 55. The lock mechanism 12 is a vehicle seat flip-up control device that is configured to be unlockable by the operation of the forward leaning detection body 53, so that the backrest seat 4 can be leaned forward with a simple configuration. Detects and controls sheet flipping. The present invention relates to a vehicle seat 2 in which a backrest seat 4 is rotatably attached to a seat 3 via a reclining device, and an upper rail 5 attached to the seat 3 and the upper rail 5 are fitted. The lower rail 6 and the upper rail 5 are attached to the floor surface 1 via a slide rail S having a locking device for fixing the upper rail 5 at an arbitrary position. A front portion is attached to the floor surface 1 by a hinge mechanism 10, and a lock mechanism 12 for locking the rotation of the slide rail S is provided between the rear portion of the lower rail 6 and the floor surface 1. A latch 16 engaged with a striker 18 provided on one side;
Ratchet 20 and Regulator 31 for Stopping Rotation of 6
Operating means for releasing the ratchet 20, and operation restricting means 28 for restricting and operating the release of the regulating body 31. The operation restricting means 28
Is a predetermined position and the backrest seat 4 is a vehicle seat jumping-up control device which is configured to be unlockable when the seatback is tilted forward, so that the latch 16 is connected to the ratchet 20 and the regulating body 31. Since the lock is performed by the two means, unless a predetermined operation is performed at a predetermined position, the flip-up cannot be performed, thereby preventing a sudden jump.
In the present invention, the operation restricting means 28 attaches the restricting body 31 to one end of a restricting arm 32 that is supported on the lower rail 6 by a mounting shaft 33, and the restricting body 31
6 is a control device for jumping up and down the vehicle seat which is configured to be connected to and disengaged from the regulating step 30 of FIG. The flip-up of the backrest sheet 4 is controlled.
According to the present invention, the upper rail 5 is provided with a restriction releasing body 40 that projects downward when the backrest sheet 4 is in a forwardly inclined state.
The regulation release body 40 is a vehicle seat flip-up control device configured to rotate the regulation arm 32 to release the regulation body 31 when the vehicle seat 2 is located at a predetermined position. Backrest sheet 4
The forward movement of the backrest sheet 4 and the detachment of the regulating body 31 are linked to control the flip-up of the backrest sheet 4 with a simple configuration. In the present invention, the seat 3 is provided with a forward leaning detector 53 that rotates when the backrest seat 4 is in a forward leaning state. Since the vehicle seat jumping-up control device is connected so as to protrude downward when it falls down, the backrest seat 4
The forward movement of the backrest sheet 4 and the detachment of the regulating body 31 are linked to control the flip-up of the backrest sheet 4 with a simple configuration. According to the present invention, when the regulation release body 40 faces above the regulation arm 32,
A vehicle seat jumping-up control device which is in a configuration in which the restriction is released and the predetermined position detecting means 46 for detecting a predetermined position of the vehicle seat 2 by the restriction releasing body 40 and the restriction arm 32 is used. Therefore, since a part of the flip-up restriction configuration is also used for the position detection configuration,
A rational configuration reduces the number of parts, reduces weight and lowers costs.

[Brief description of the drawings]

FIG. 1 is a schematic side view.

FIG. 2 is an exploded perspective view of an operation restricting unit excluding a forward-moving detection unit.

FIG. 3 is an exploded perspective view of a forward-moving detection unit excluding an operation restricting unit.

FIG. 4 is a side view at a predetermined position.

FIG. 5 is a side view other than a predetermined position.

FIG. 6 is a side elevational view at a predetermined position;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Floor surface, 2 ... Vehicle seat, 3 ... Seat seat, 4 ... Backrest seat, 5 ... Upper rail, 6 ... Lower rail, 1
0: hinge mechanism, 11: rotating shaft, 12: tilt-up lock mechanism, 15: lower bracket, 16: latch, 1
7: latch shaft, 18: striker, 19: striker engagement groove, 20: ratchet, 21: ratchet engagement step,
28: tilt-up operation restricting means, 30: tilt-up restricting step, 31: tilt-up restricting body, 32: tilt-up restricting arm, 33: mounting shaft, 34: spring, 35: arm contact part, 40: tilt-up Restriction release body, 41 ... horizontal axis, 42 ... upper bracket, 43 ... spring, 44 ... guide inclined surface, 45 ... forward detection unit, 47 ... rod, 48 ...
Brackets for seats, 52 mounting part, 53 detection body for forward movement, 54 axis, 55 contact part.

Claims (10)

[Claims] 1. A vehicle seat 2 having a backrest seat 4 rotatably mounted on a seat 3 via a reclining device, and an upper rail 5 mounted on the seat 3 and the upper rail 5 fitted thereto. The combined lower rail and the upper rail 5 are slidably mounted on the floor 1 via a slide rail S having a lock device for fixing the upper rail 5 at an arbitrary position. The front part is hinge mechanism 10
A lock mechanism 12 is provided between the rear surface of the slide rail S and the floor 1 to lock the rotation of the slide rail S. A vehicle seat flip-up control device configured to be able to release the lock when the backrest seat 4 is in a position and the backrest seat 4 is tilted forward. 2. The lock mechanism according to claim 1, wherein
The flip-up of the vehicle seat is configured such that the predetermined position detecting means 46 provided between the upper rail 5 and the lower rail 6 detects that the vehicle seat 2 is located at the predetermined position and can release the lock. Control device. 3. The lock mechanism according to claim 1, wherein
Is a vehicle seat flip-up control device which is configured to detect a forward leaning state of the backrest seat 4 by a forward leaning detection unit 45 provided between the backrest seat 4 and the seat 3 and to be able to release the lock. . 4. The lower rail 6 according to claim 2, wherein
An operation restricting means 28 for restricting the rotation of the latch 16 of the lock mechanism 12 is provided at a predetermined position, and a restriction releasing body 40 for unlocking the operation restricting means 28 is provided on the upper rail 5. Seat jump control device. 5. The backrest sheet 4 according to claim 3, wherein the backrest sheet 4 is provided with a contact portion 55 which is moved by moving the backrest sheet 4 forward. A flip-up control device for a vehicle seat, wherein the lock mechanism 12 is configured to be able to release the lock by the operation of the forward-moving detector 53 when the forward-moving detector 53 is activated. 6. A vehicle seat 2 having a backrest seat 4 rotatably mounted on a seat 3 via a reclining device, and an upper rail 5 mounted on the seat 3 and the upper rail 5 fitted thereto. The combined lower rail 6 and the upper rail 5 are slidably mounted on the floor 1 via a slide rail S having a lock device for fixing the upper rail 5 at an arbitrary position. The front part is hinge mechanism 10
A lock mechanism 12 is provided between the rear of the lower rail 6 and the floor 1 to lock the rotation of the slide rail S, and the lock mechanism 12 is provided on the floor 1 side. A latch 16 that engages with the latch 18; a ratchet 20 and a restricting body 31 that stop the rotation of the latch 16; an operating unit that releases the ratchet 20; and an operating restricting unit 28 that restricts and operates the release of the restricting body 31. The operation restricting means 28 is a vehicle seat flip-up control device which is configured so that the vehicle seat 2 can be unlocked when the vehicle seat 2 is at a predetermined position and the backrest seat 4 is tilted forward. 7. The operation control means 2 according to claim 6, wherein
Reference numeral 8 denotes a vehicle for which the restricting body 31 is attached to one end of a restricting arm 32 that is supported on the lower rail 6 by a mounting shaft 33, and that the restricting body 31 is connected to and disconnected from the restricting step 30 of the latch 16. Seat jump control device. 8. The vehicle seat 2 according to claim 7, wherein the upper rail 5 is provided with a restriction releasing body 40 projecting downward when the backrest sheet 4 is in a forwardly inclined state. A vehicle seat flip-up control device configured to rotate the regulating arm 32 when the is positioned at a predetermined position to release the regulating body 31. 9. The seat according to claim 8, wherein the seat 3 is provided with a forward leaning detector 53 that rotates when the backrest seat 4 is in a forward leaning state. A vehicle seat flip-up control device that is connected so as to protrude downward when the backrest seat 4 is in a forwardly inclined state. 10. The restriction releasing body according to claim 8 or claim 9, wherein when the restriction releasing body 40 faces above the restriction arm 32, the restriction releasing state is established.
And a regulating arm 32 for detecting a predetermined position of the vehicle seat 2.