JPH11301317A - Vehicle seat locking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat locking device with which both an occupant sitting in a seat and an occupant in the rear of the seat can easily adjust the seats to an arbitrary position. SOLUTION: This vehicle seat locking device 10R, with which a seat 3 to slide back and forth is locked at an arbitrary position, has both a forward operating lever 21 with which a lock of the seat 3 can be released from a front side of the seat 3 and a backward operating lever 33 with which the lock of the seat 3 can be released from a rear side of the seat 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vehicle seat lock device.

[0002]

2. Description of the Related Art A vehicle seat locking device locks a seat slidable back and forth at an arbitrary position according to the occupant's preference. Japanese Patent Application Publication No. 156403 discloses a "position locking device for a vehicle seat". According to FIGS. 1 to 3 of the publication, the position locking device includes a large number of locking holes 21a for arbitrary locking on the vehicle body front and rear (the numbers are cited in the publication. The same applies hereinafter). ), And a locking claw 27a is attached to the seat 5 side.
The first rotation shaft 16 having the first rotation shaft 16 is attached.

In the neutral state, a lock hole 21a for arbitrary lock is provided.
, The locking claw 27a is locked, so that the seat 5 is in a locked state. When the first rotating shaft 16 is twisted by the operation lever 15 from the front of the seat 5, the locking holes 21a for arbitrary locking are formed.
And the locking claw 27a can be unlocked.

[0004]

The position lock device operates the operation lever 15 from the front of the seat 5. For example, in a vehicle in which the seat back of the seat 5 can be tilted forward and used instead of a table,
The occupant behind the seat needs to rely on the occupant in front of the seat, or the occupant behind the seat needs to go around in front of the seat for adjustment. As described above, conventionally, the occupant behind the seat has not been able to easily adjust the position of the front seat 5.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a technique in which both an occupant sitting on a seat and an occupant behind the seat can easily adjust the seat to an arbitrary position.

[0006]

In order to achieve the above object, a first aspect of the present invention is a vehicle seat lock device for locking a seat slidable back and forth at an arbitrary position. It is characterized by including a front operation lever that can release the lock from the front and a rear operation lever that can release the lock from behind the seat.

An occupant sitting on the seat or an occupant next to the seat can unlock the lock device by operating the front operation lever from the front of the seat. In addition, the occupant behind the seat can release the lock of the lock device by operating the rear operation lever from behind. Once the lock is released, the seat can be slid back and forth to adjust it to any position. For example, when the seat back of the seat is tilted forward and the back is used instead of the table, the occupant behind the seat,
The position of the seat can be freely adjusted to a convenient position as a table.

According to a second aspect of the present invention, the lock device connects the front operation lever and the rear operation lever, and when the front operation lever is operated, the rear operation lever is brought into a stationary state, and the rear operation lever is operated. A transmission mechanism for transmitting the operation to the front operation lever when the operation is performed, thereby interlocking the operation with the front operation lever.

When the front operation lever is operated, the rear operation lever remains stationary. When the rear operation lever is operated, the front operation lever also moves integrally. Therefore, the occupant sitting on the seat can release the lock of the locking device prior to the occupant behind the seat, and can freely adjust the seat to an arbitrary position in accordance with the sitting posture or the like.

According to a third aspect of the present invention, there is provided a vehicle seat lock device for locking a seat slidable back and forth at an arbitrary position, the lock device comprising: a front operation lever operated from the front of the seat; A front rod extending rearward from the operation lever, a lock claw that locks and unlocks a seat rail fixed to the vehicle body by operation of the front rod, a lower arm attached to the front rod, and a lower arm An open arcuate hole, a vertical link extending downwardly slidably connected to the arcuate hole, an upper arm connected to an upper end of the vertical link, a rear rod extending rearward, and a rear rod And a rear operation lever provided at the rear end of the seat and operated from behind the seat.

By operating the front rod with the front operation lever, the lock between the lock claw and the vehicle body can be released. On the other hand, by operating the rear rod with the rear operation lever, the front rod can be operated via the upper arm, the vertical link and the lower arm of the rear rod, and the lock between the lock claw and the vehicle body side can be released. . Therefore, the occupant sitting on the seat or the occupant next to the seat can operate the front operation lever from the front of the seat to unlock the lock device. Also, the occupant behind the seat can operate the rear operation lever from behind the seat to release the lock of the lock device.

Since the rear rod is connected to the front rod via the vertical link, the rear operation lever is at a higher position than the front operation lever. Therefore, even with a seat in which the lock device is embedded in the floor, the rear operation lever is located at a height that is easily accessible, so that the seat can be easily operated from behind the seat.

When the front operation lever is operated, the rear operation lever is kept stationary, and when the rear operation lever is operated, the arc hole formed in the lower arm is moved so that the front operation lever moves integrally. And the lower end of the vertical link is slidably connected, so that the occupant sitting on the seat can unlock the lock device prior to the occupant behind the seat.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that "before", "after",
“Left”, “right”, “up”, and “down” follow directions viewed from the occupant, and Fr indicates the front side, Rr indicates the rear side, L indicates the left side, and R indicates the right side. Also, the drawings should be viewed in the direction of reference numerals.

FIG. 1 is a schematic perspective view of the interior of a vehicle according to the present invention, and shows that the interior of the vehicle 1 includes a front seat (a driver seat 2 and a passenger seat 3) and a rear seat 4. The driver's seat 2 and the passenger's seat 3 are seats that can be slid back and forth, and these seats are respectively left and right locking devices 10L and 10R.
Is locked at an arbitrary position.
The left and right lock devices 10L and 10R are embedded in the floor 5 and covered with covers 6 (... denotes a plurality; the same applies hereinafter). Since the left and right lock devices 10L and 10R are embedded, the foot space for the occupant in the rear seat 4 is wide. The passenger seat 3 (hereinafter referred to as "seat 3") includes a seat cushion 3a and a seat back 3b that can swing back and forth.
Consists of The seat back 3b is placed on the back so that the seat back 3b can be tilted forward and used as a table instead.
c.

FIG. 2 is a perspective view of a seat (passenger seat) locking device according to the present invention. Left and right lock devices 10L, 1
Reference numeral 0R denotes a double lock device that locks the seat 3 in conjunction therewith. The right locking device 10R (hereinafter simply referred to as “locking device 10R”) includes a long front and rear seat rail 13 fixed to a floor (vehicle body) (not shown) via brackets 11 and 12, and It comprises a movable frame 14 having a lower end slidably attached to the front and rear, a front operation lever 21 disposed at a lower front portion of the seat 3, and a rear operation lever 33 disposed at a lower rear portion of the seat 3. The movable frame 14 is a vertical panel-shaped member for mounting the seat cushion 3a on the upper part. The front operation lever 21 is a lever operated from the front of the seat 3, and the rear operation lever 33 is a lever operated from the rear of the seat 3. Hereinafter, the lock device 10R
Will be described in detail.

FIG. 3 is a perspective view of a main part of the right lock device according to the present invention. The lock device 10R includes the front operation lever 2
1, a front rod 22 horizontally extending rearward from the front operation lever 21, a locking claw 23a which locks and unlocks the seat rail 13 on the vehicle body side by a twisting operation of the front rod 22, and a front rod. Lower arm 24 attached to 22
And an arc hole 24a opened in the lower arm 24;
4a, a vertical link 26 having a lower end slidably connected via a pin 25 and extending upward, and an upper arm 31 connected to an upper end of the vertical link 26 by a pin 27, and a rear rod 32 horizontally extending rearward. And a rear operation lever 33 provided at the rear end of the rear rod 32. Among these members, a combination structure of the lower arm 24, the arc hole 24a, the pin 25, the vertical link 26, the pin 27, and the upper arm 31 forms the transmission mechanism 36.

More specifically, the front rod 22
Is a member rotatably supported on the lower inner side surface of the movable frame 14 via front and rear bearings 41 and 42, and has a front end bent into a substantially L-shape to form a front operation lever 21. . Further, the front rod 22 is provided with a lock member 23 having a substantially L-shape in rear view. Lock member 23
Are provided with lock claws 23a at the tip. On the other hand, the seat rail 13 has a large number of lock holes 13b formed on the side wall 13a at a predetermined pitch in a front and rear row. Lock claw 23a ...
Locks and unlocks the lock holes 13b.

The front rod 22 is provided with a torsion spring (return spring) 43 at the rear end. Specifically, one end of the torsion spring 43 was hung on the front rod 22, and the other end was hung on the bearing 42 side. The torsion spring 43 springs in a direction in which the lock claws 23a lock with the lock holes 13b. Accordingly, the front operation lever 21 remains leaning toward the lock side in the neutral state.

The rear rod 32 includes bearings 51, 52, 51
And a member rotatably supported on the upper inner side surface of the movable frame 14 via its rear end. The rear end of the member is bent into a substantially L-shape to form a rear operation lever 33. Further, the rear rod 32 has a torsion bar (return spring) 53 attached thereto. Specifically, one end of the torsion bar 53 was hung on the rear rod 32, and the other end was hung on the bearing 52 side. The torsion bar 53 springs in a direction in which the lock claws 23a lock with the lock holes 13b. Therefore, the rear operation lever 33 remains leaning toward the lock side in the neutral state. This falling angle is restricted by the stopper 54. Details of the stopper 54 will be described later.

Since the rear rod 32 is connected to the front rod 22 via the vertical link 26 (a vertically extending link),
The rear rod 32 is higher than the front rod 22. Therefore, the rear operation lever 33 is arranged at a higher position than the front operation lever 21.

Here, once returning to FIG. 2 and continuing the explanation, only a part of the configuration of the left lock device 10L is shown. The basic configuration of the left lock device 10L is the same as that of the right lock device 10R, and is symmetrical with the right lock device 10R. That is, the left locking device 10L is a member for twisting the front rod 22 with the front and rear operating levers 21 and 33 and the rear operating lever 33 in the right locking device 10R (the lower arm 24, the vertical link 26, the upper arm). 31, a rear rod 32, and members related thereto). The wire cable 45 includes a right lock device 10R and a left lock device 10L.
And the operation of the front and rear operation levers 21 and 33 is also transmitted to the left locking device 10L to lock and unlock the right and left locks at the same time.

FIG. 4 is a view taken in the direction of arrow 4 in FIG. 2. In front view, the lower arm 24 is a fan-shaped member, and the arc hole 24a is an arc hole centered on the front rod 22. Is shown. The present invention is characterized by a connection relationship between the arc hole 24a and the lower end of the vertical link 26, and will be described below.
In the neutral state shown in this figure, the locking operation of the front rod 22 and the lower arm 24 in the locking direction (clockwise direction in the figure) is restricted by the locking claws 23a locking in the locking holes 13b.

The arcuate hole 24a is an arcuate elongated hole having a predetermined angle θ starting from a point which is the end in the unlocking direction Ur (counterclockwise direction in the figure) in the neutral state. That is, the arc hole 24a is an arc-shaped long hole that extends in the clockwise direction in FIG. In this state, the lower end of the vertical link 26 is connected (pin connected) to the starting point O of the arc hole 24a by the pin 25.

Accordingly, when the front operation lever 21 is operated in the unlocking direction U (counterclockwise direction in the figure), the twisting directions of the front rod 22, the lower arm 24 and the arc hole 24a are also in the unlocking direction Ur. Become. As a result,
The arc hole 24a merely causes the starting point O to idle in the unlocking direction Ur, and does not drive the vertical link 26. Thus, the arc hole 24a functions as a relief hole. On the other hand, when the rear rod 32 twists in the unlocking direction Ur, the upper arm 31 lifts the vertical link 26, so that the pin 25 raises the starting point O of the arc hole 24a. As a result, the lower arm 24 and the front rod 22 twist in the unlock direction Ur. The front rod 22
Has an auxiliary arm 44, and the left locking device 10L shown in FIG. 2 can be driven by a wire cable 45 connected to the auxiliary arm 44. Front operation lever 2
1 has a grip 28 at the end.

FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2, and shows the structure of the lock device 10R as viewed from the rear and the direction of the rear operation lever 33 in the neutral state. Further, in this figure, a seat rail 13 composed of a C-shaped channel whose upper side is opened is attached to a bracket 12 indicated by an imaginary line, and a slider 15 of a movable frame 14 is mounted in the seat rail 13.
Indicates that the unit was mounted so as to be slidable back and forth (front and back in the figure). The lock claws 23a are locked in the lock holes 13b. The rear operation lever 33 has a grip 34 at an end.

FIGS. 6A and 6B are sectional views taken along the line 6-6 in FIG. 3, and show the stopper 54 of the rear rod 32. FIG.
As shown in (a), the rear rod 32 is formed by fixing an upper open semicircular stopper 54 by welding or the like. The upper end 54a of the stopper 54 abuts on a flange 55 integral with the bearing 52 (see FIG. 3), thereby regulating the twist angle of the rear rod 32 in the locking direction (counterclockwise direction in the figure) in a neutral state. I do. (B) shows that when the rear rod 32 twists in the unlocking direction Ur (clockwise), the upper end 54a of the stopper 54 separates from the flange 55.

Next, the operation of the lock device 10R having the above configuration will be described with reference to FIGS. FIG. 7 is an operation diagram (part 1) of the lock device according to the present invention. When the front operation lever 21 shown by the imaginary line is twisted by hand in the unlocking direction U, the front rod 22 twists in the unlocking direction Ur to unlock the lock claws 23a from the lock holes 13b. . At this time, the auxiliary arm 44 twists in the unlocking direction Ur, pulls the wire cable, and unlocks the left locking device (not shown).

At the same time, since the lower arm 24 twists in the unlocking direction Ur, the twisting direction of the starting point O of the arc hole 24a also becomes the unlocking direction Ur. As a result, the arc hole 24a simply rotates at the starting point O in the unlocking direction Ur, and does not drive the vertical link 26.
Therefore, when the front operation lever 21 is operated, the vertical link 26, the upper arm 31, the rear rod 32, and the rear operation lever 33 remain stationary.

When the locks of the right lock device 10R and the left lock device are released, the movable frame 1
4 (seat 3 in FIG. 2) can be adjusted to an arbitrary position by sliding it back and forth.

Thereafter, when the hand is released from the front operation lever 21, the front rod 22 automatically returns to the original position by the elastic force of the torsion spring 43, so that the lock claws 23a are locked with the lock holes 13b. At the same time, the left locking device locks. Therefore, the movable frame 14 (seat 3)
Can be set at any position. At the same time, the front operation lever 21 and the lower arm 24 automatically return to their original positions.

FIG. 8 is an operation diagram (part 2) of the lock device according to the present invention. Rear operation lever 33 indicated by imaginary line
Is twisted by hand in the unlocking direction U, the rear rod 32
Is twisted in the unlocking direction Ur, and the upper arm 31
The vertical link 26 is lifted via the. As a result, the pin 25 at the lower end of the vertical link 26 is hooked on the starting point O of the arc hole 24a, and the lower arm 24 is twisted in the unlocking direction Ur. Therefore, the front rod 22 twists in the unlocking direction Ur to unlock the lock claws 23 from the lock holes 13b. In other words, when the rear operation lever 33 is operated, the front rod 22 and the front operation lever 21 are operated.
Move together. Further, the front rod 22 twists the auxiliary arm 44 in the unlocking direction Ur,
The wire cable 45 is pulled to unlock the left locking device (not shown).

When the locks of the right lock device 10R and the left lock device are released, the movable frame 1
4 (seat 3 in FIG. 2) can be adjusted to an arbitrary position by sliding it back and forth.

Thereafter, when the hand is released from the rear operation lever 33, the rear rod 3
2 automatically returns to the original position, so the vertical link 26 is lowered via the upper arm 31. As a result, the torsion spring 43
, The front rod 22 automatically returns to the original position, so that the lock claws 23a are locked with the lock holes 13b and the left lock device is locked. Therefore, the movable frame 14 (seat 3) can be set at an arbitrary position. At the same time, the front operation lever 21 and the lower arm 24 automatically return to their original positions.

Next, the left and right locking devices 10 of the above construction
The operation of the seat 3 provided with L and 10R will be described with reference to FIGS. The occupants are not shown. In FIG. 1, an occupant seated in a seat (passenger seat) 3 or an occupant in an adjacent driver's seat 2 operates a front operation lever 21 from the front of the seat 3, whereby left and right locking devices 10 L, 10R can be unlocked.

The occupant behind the seat 3 (occupant in the rear seat 4) can operate the rear operation lever 33 from behind the seat 3 to unlock the left and right locking devices 10L and 10R. When the lock is released, the seat 3 can be slid back and forth and adjusted to an arbitrary position.

When the front operation lever 21 is operated,
The rear operation lever 33 remains stationary. When the rear operation lever 33 is operated, the front operation lever 21 also moves integrally. Therefore, regardless of whether the rear operation lever 33 is in the locked or unlocked state, the occupant sitting on the seat 3 operates the front operation lever 21 to lock the left and right locking devices 10L and 10R. It can be released freely. Then, the seat 3 can be freely adjusted to any position according to the sitting posture and the like.

FIG. 9 is an operation view of a seat provided with the lock device according to the present invention. When the seat back 3b of the seat 3 is tilted forward and used instead of a table, the occupant of the rear seat 4
The rear operation lever 33 can be operated while sitting in the rear seat 4 without turning around in front of the seat 3. Therefore, the occupant of the rear seat 4 can freely and easily adjust the position of the seat 3 to a convenient position as a table, which is convenient. If the seat back 3b of the seat 3 is tilted forward, the loading section 3c on the back side can be used as a table, and various articles such as a book B and a cup C can be placed, for example. Furthermore, when not sitting on the seat 3, the occupant of the rear seat 4 can freely adjust the position of the seat 3 while sitting, and can stretch his legs and relax.

[0039]

According to the present invention, the following effects are exhibited by the above configuration. According to the first aspect of the present invention, the locking device includes a front operation lever that can release the lock from the front of the seat and a rear operation lever that can release the lock from the rear of the seat. An occupant sitting on the seat or an occupant next to the seat can operate the front operation lever from the front of the seat to unlock the lock device, and (2) the occupant behind the seat can By operating the rear operation lever from behind the seat, the lock of the lock device can be released. Thus, the occupant sitting on the seat and the occupant behind the seat can easily adjust the seat to an arbitrary position.

Therefore, the occupant behind the seat can easily move the seat as desired while sitting in the rear seat. For example, if you use the back of the seat back instead of the table by leaning the seat forward from the rear, instead of turning around in front of the seat, leave the seat in the rear seat and place the seat in a convenient position as a table. Can be adjusted freely and easily, which is convenient. Furthermore, when not sitting on the seat, the occupant in the rear seat can freely adjust the position of the seat while sitting down, and can stretch out his legs and relax.

According to a second aspect of the present invention, the lock device connects the front operation lever and the rear operation lever, and when the front operation lever is operated, the rear operation lever is brought into a stationary state, and the rear operation lever is operated. When the rear operation lever is locked or unlocked, the occupant sitting on the seat can By operating the section operation lever, the lock of the lock device can be released freely. Then, the seat can be freely adjusted to any position according to the sitting posture and the like.

According to a third aspect of the present invention, there is provided a vehicle seat locking device for locking a seat slidable back and forth at an arbitrary position. The locking device includes a front operation lever operated from the front of the seat, and a front operation lever. A front rod extending rearward from the operation lever, a lock claw that locks and unlocks a seat rail fixed to the vehicle body by operation of the front rod, a lower arm attached to the front rod, and a lower arm An open arcuate hole, a vertical link extending downwardly slidably connected to the arcuate hole, an upper arm connected to an upper end of the vertical link, a rear rod extending rearward, and a rear rod The rear operation lever is provided at the rear end of the seat and is operated from the rear of the seat. Therefore, the number of parts is small and the structure is simple. The lock between the lock pawl and the vehicle body can be released by operating the rear rod, and (2) the rear rod is operated with the rear operation lever, and the upper arm, vertical link and lower arm of the rear rod are used. By operating the front rod, the lock between the lock claw and the vehicle body can be released.

Therefore, the occupant sitting on the seat or the occupant next to the seat can operate the front operation lever from the front of the seat to unlock the lock device. Also, the occupant behind the seat can operate the rear operation lever from behind the seat to release the lock of the lock device. Thus, the occupant sitting on the seat and the occupant behind the seat can easily adjust the seat to an arbitrary position. Then, the occupant behind the seat can easily move the seat as desired while sitting in the rear seat.

For example, when the seat is tilted forward from the rear and the back of the seat back is used instead of the table, it is not necessary to turn around in front of the seat, but instead sits in the rear seat and places the table in a convenient position as a table. The position of the seat can be freely and easily adjusted, which is convenient. Furthermore, when not sitting on the seat, the occupant in the rear seat can freely adjust the position of the seat while sitting down, and can stretch out his legs and relax.

Further, since the rear rod is connected to the front rod via the vertical link, the rear operation lever is arranged at a higher position than the front operation lever. Therefore, even with a seat in which the lock device is embedded in the floor, the rear operation lever is located at a height that is easily accessible, so that the seat can be easily operated from behind the seat.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of the interior of a vehicle according to the present invention.

FIG. 2 is a perspective view of a locking device for a seat (passenger seat) according to the present invention.

FIG. 3 is a perspective view of a main part of a right lock device according to the present invention.

FIG. 4 is a view taken in the direction of arrow 4 in FIG. 2;

FIG. 5 is a view taken in the direction of arrow 5 in FIG. 2;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 3;

FIG. 7 is an operational view of the lock device according to the present invention (part 1).

FIG. 8 is an operational view of the lock device according to the present invention (part 2).

FIG. 9 is an operation view of a seat provided with a lock device according to the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 3 ... Seat (passenger seat), 3b ... Seat back, 3c ... Loading table, 10L, 10R ... Left and right locking devices, 13 ... Seat rail (body side), 13b ... Lock hole, 14 ... Movable frame , 21 ... front operation lever, 22
... front rod, 23 ... lock member, 23a ... lock claw,
32 ... rear rod, 33 ... rear operation lever, 36 ... transmission mechanism, 43 ... torsion spring, 53 ... torsion bar, O ...
Starting point of arc hole, U, Ur ... unlocking direction.

Claims (3)

[Claims] A locking device for a vehicle seat for locking a seat slidable back and forth at an arbitrary position, the locking device includes a front operation lever capable of releasing a lock from the front of the seat, and a seat. And a rear operation lever capable of releasing a lock from the rear of the vehicle seat. 2. The lock device connects the front operation lever and the rear operation lever. When the front operation lever is operated, the rear operation lever is set to a stationary state, and the rear operation lever is operated. 2. The vehicle seat lock device according to claim 1, further comprising a transmission mechanism that transmits the operation to the front operation lever when the operation is performed. 3. A vehicle seat lock device for locking a seat slidable back and forth at an arbitrary position, comprising: a front operation lever operated from the front of the seat; and a front operation lever. A front rod extending rearward, a lock claw that locks and unlocks a seat rail fixed to the vehicle body by operation of the front rod, a lower arm attached to the front rod, and a lower arm opened to the lower arm. An arcuate hole, a vertical link having a lower end slidably connected to the arcuate hole and extending upward, a rear rod having an upper arm connected to an upper end of the vertical link and extending rearward, and a rear rod extending rearward. A vehicle seat lock device comprising a rear operation lever provided at an end and operated from the rear of the seat.