JPH111137A - Vehicle seat lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To quickly and surely fix a seat to a desired location by bringing a fixing part provided on the rear side of an endmost lock location into contact with a lock member and preventing the lock member from further backward moving when a seat is slid from the endmost lock location to the rear side. SOLUTION: A front seat cushion is moved in the direction of an arrow A1, and a lock member 32 passes a fixing part 34 and an endmost lock location P and is arranged on the side of the tip of a contact surface 36 of a fixing side rail member 28. When a holding action of an operating lever 48 is released at this location, the lock member 32 oscillates in the direction of an arrow B via tensile force of a spring 46 and a lock tooth 44 comes into contact with the contact surface 36 of the fixing side rail member 28. In this state, a seat back is inclined backward and is made almost flush with a rear seat cushion. When the lock member 32 surely comes into contact with the fixing part 34 and the front seat cushion is slid at high speed, the lock member 32 does not jump over a desired lock hole 38.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicular seat lock for fixing a seat, which can be moved forward and backward in the vehicle length direction and slidable forward from a frontmost lock position, to an arbitrary position behind the frontmost lock position. Related to the device.

[0002]

2. Description of the Related Art In recent years, there has been a demand for diversified passenger cars. For example, there is a demand for securing a large luggage space continuous from a luggage compartment in a vehicle compartment as needed.
For this reason, a flat surface continuous from the front seat to the rear seat has been formed. Specifically, the front seat back that constitutes the front seat is tilted backward,
A structure is employed in which the front seat back is brought into contact with the front end of a rear seat cushion constituting a rear seat and is disposed substantially on the same plane as the upper surface of the rear seat cushion.

In this case, as described above, in order to form a flat surface that is continuous from the front seat to the rear seat, it is necessary to slide the front seat cushion forward from the frontmost locking position. That is, as shown in FIG. 22, when the front seat back 4 is tilted backward while the front seat cushion 3 is moved to the foremost lock position 2 of the front seat 1, the front seat back 4 becomes A portion 7 that interferes with the front end of the rear seat cushion 6 of the rear seat 5 is generated.

Therefore, as shown in FIG. 23, a contrivance has been adopted in which the slide portion 8 is provided a predetermined distance H forward (in the direction of arrow X) from the foremost lock position 2. Therefore, the front seat 1 slides forward from the foremost lock position 2 along the slide portion 8 to bring the front seat back 4 and the front end of the rear seat cushion 6 into contact with each other so as to be substantially flush with each other. Can be arranged.

[0005]

By the way, a lock device for fixing the front seat 1 at a predetermined lock position is as follows.
Usually, it is provided with a lock member which is pulled by a spring and is movable integrally with the front seat 1, and a plurality of lock holes provided in a fixed rail. Then, by rotating the lock member via the operation lever,
The front seat 1 is locked and unlocked.

However, when the front seat 1 is returned from the fully flat state shown in FIG. 23 to the sitting posture, the front seat 1 may be slid rearward at a higher speed than the normal front / rear fine adjustment. Many. For this reason, it has been pointed out that the lock member is locked at a position shifted from the desired stop position, that is, a so-called "lock tooth jump" is caused. As a result, the operability when sliding the seat is deteriorated, and the lock member and the lock hole are easily damaged.

SUMMARY OF THE INVENTION The present invention solves this kind of problem, and a vehicle seat locking device capable of quickly and reliably fixing a seat to a desired lock position and sliding the seat at a high speed. The purpose is to provide.

[0008]

In the locking device for a vehicle seat according to the present invention, when the seat is slid once forward from the frontmost locked position and then slid backward, the seat is locked from the frontmost locked position. A fixed portion provided at the rear comes into contact with the lock member. Then, at this contact position, the lock member is fixed to the frontmost lock position, so that it is possible to prevent the lock member from moving unnecessarily further beyond the frontmost lock position. Thus, the lock member can be easily and reliably stopped at the desired lock position, and the seat can be slid at high speed. In addition, the configuration of the entire lock device can be effectively simplified.

Further, in the vehicle seat lock device according to the present invention, a fixing mechanism is provided on the rod member for rotating the lock member and the fixed side rail member. The fixing mechanism includes, for example, a fixing member having a bent concave portion at a front end and a tapered surface at a rear end, a stopper member rotatably mounted on a rod member via a spring, and a rod member. And a pressing member fixedly attached to the stopper member to swing the stopper member.

Therefore, when the seat moves from the front to the rear of the foremost locking position, the stopper member comes into contact with the bent concave portion of the fixing member, and the locking member moves immediately before the foremost locking position.
Alternatively, it stops at the frontmost lock position. Next, when the rod member is rotated via the operation lever, the lock member swings, and the stopper member is separated from the bent concave portion of the fixed member via the pressing member. In this state, when the seat is moved rearward to release the operation lever, the lock member is securely fixed at an arbitrary lock position.

Thus, even if the sheet is slid at a high speed, the sheet is reliably stopped at a predetermined position via the fixing mechanism. For this reason, by operating the operation lever from the position where the sheet is stopped by the fixing mechanism, the sheet can be easily and reliably fixed to a desired lock position.

Further, in the vehicle seat locking device according to the present invention, both ends of the spring member are supported by the fixed side rail member, and when the seat moves forward from the foremost locking position, the movable side rail member is moved to the movable side rail member. A provided spring support member supports one end of the spring member and pulls the spring member. Therefore, when the seat is located forward of the frontmost lock position, the tension force of the spring member acts on the seat via the movable rail member, and the seat is pushed rearward. For this reason, the seat is smoothly moved to the foremost lock position, and there is no erroneous recognition that the lock position exists ahead of the foremost lock position.

[0013] Further, a fixing portion is provided rearward of the most distal locking position. Thereby, the fixing member comes into contact with the lock member, so that the lock member can be more reliably fixed to the most distal lock position.

In the locking device for a vehicle seat according to the present invention, a fixing portion is provided at a leading end locking position, and a contact surface of the fixing portion which contacts the locking member is located rearward of the leading end locking position. Are formed so as to protrude from the contact surface provided on the lock member side. Therefore, when the lock member comes into contact with the contact surface of the fixing portion, the lock member is effectively stopped at the most distal end lock position.

Here, the lock member is provided on the swingable operating lever, and the contact surface formed on the fixed portion forms an inclined surface corresponding to the posture of the lock member in the unlocked state. I have. Accordingly, the lock member that moves in the inclined posture surely comes into contact with the contact surface of the fixing portion, and the lock member can be more accurately fixed to the most distal lock position.

[0016]

FIG. 1 is a schematic perspective explanatory view of a vehicle body 12 provided with a lock device 10 according to a first embodiment of the present invention.

A front seat 16 and a rear seat 18 are arranged in a vehicle compartment 14 of the vehicle body 12 in a vehicle length direction (direction of an arrow A). As shown in FIGS. 1 and 2, the front seat 16 provided on the passenger seat side is provided with a front seat cushion 20 for seating which is slidable in the vehicle length direction (the direction of arrow A).
And a front seat back 22 for a backrest that is at least capable of falling back, and a detachable headrest 24 above the front seat back 22, and the front seat 16 includes a locking device 10 according to the first embodiment. Is attached.

As shown in FIGS. 3 and 4, the lock device 10 comprises a fixed rail member 28 fixed to the floor 26 of the vehicle body 12 and a movable rail member fixed to the lower surface of the front seat cushion 20. 30 and the movable side rail member 3
0 and a lock member 32 for integrally fixing the fixed side rail member 28 to prevent the front seat 16 from moving.
A fixing member for fixing the lock member 32 to the frontmost lock position P by contacting the lock member 32 provided behind the frontmost lock position P of the front seat 16 (in the direction of the arrow A2). And a unit 34.

As shown in FIG. 3, the fixed rail member 28 has a contact surface 36 extending in the direction of arrow A, and the contact surface 36 A plurality of lock holes 38 are formed at predetermined intervals in the direction A2). A plate-shaped fixing portion 34 is fixed to the fixed-side rail member 28 at a position rearward of the foremost lock position P. The fixing portion 34 is set to have such a size that it can come in contact with the lock member 32 and can pass over the lock member 32 via an operation lever 48 described later.

A rod member 40 is rotatably supported along the movable rail member 30, and a lock member 32 is fixed to one end of the rod member 40. The lock member 32 has a plurality of lock teeth 44 that are inserted into an arbitrary lock hole 38 formed in the fixed-side rail member 28 through the window 42 of the movable-side rail member 30. The lock member 32 is always pressed in the lock direction (the direction of arrow B) via a pair of springs 46. Rod member 40
Is bent approximately 90 °, and an operation lever 48 is provided at the end.

As shown in FIG. 4, a reclining device 50 is mounted on the front seat cushion 20 and the front seat back 22. The reclining device 50 includes a reclining knob 52 disposed on a side of the front seat cushion 20. A reclining adjuster 54 for adjusting the front seat back 22 to a predetermined inclined posture by operating the reclining knob 52 is attached to the front seat cushion 20 and the front seat back 22.

As shown in FIGS. 1 and 2, the rear seat 18 includes a rear seat cushion 56 for seating, rear seat backs 58a and 58b for backrest, and upper portions of the rear seat backs 58a and 58b. It has detachable headrests 60a and 60b. Rear seat back 58a,
58b is configured to be reclined as needed.

The operation of the lock device 10 according to the first embodiment configured as described above will be described below.

First, in FIG. 2, after the headrest 24 constituting the front seat 16 is detached from the upper part of the front seat back 22, the front seat cushion 20 is moved forward in the vehicle length direction (direction of arrow A1). You. Specifically, as shown in FIG. 3, when the operation lever 48 is swung in the direction of arrow C, the lock member 32 is opposed to the spring 46 via the rod member 40, and the arrow D is opposite to the direction of arrow B. Rocks in the direction. Therefore, the lock teeth 44 of the lock member 32 are disengaged from the lock holes 38 of the fixed-side rail member 28, and the movable-side rail member 30 can freely advance and retreat in the direction of arrow A with respect to the fixed-side rail member 28.

Then, the front seat cushion 20 is moved in the direction of the arrow A1, and the lock member 32 passes through the fixing portion 34 and the foremost lock position P, and the fixed side rail member 28
Is disposed on the tip side of the contact surface 36. In this position, when the holding action of the operation lever 48 is released, the lock member 32 is released.
Swings in the direction of arrow B through the pulling force of the spring 46, and the lock teeth 44 contact the contact surface 36 of the fixed-side rail member 28.
(See FIG. 5A).

In this state, as shown in FIG. 4, the reclining knob 52 constituting the reclining device 50 is operated, and the front seat back 22 is tilted rearward via the reclining adjuster 54. For this reason, the front seat back 22 is supported at a position where it comes into contact with the front end of the rear seat cushion 56 and is located on substantially the same plane as the upper surface of the rear seat cushion 56 (see FIG. 6). .
The rear seat back 58a can be reclined rearward as needed.

Thus, the front seat cushion 20,
Front seat back 22 and rear seat cushion 56
Are arranged on substantially the same plane. Therefore, for example, a wide flat surface for a bed can be obtained, and relatively large loads can be effectively loaded.

Next, when returning the front seat 16 from the flat posture shown in FIG. 6 to the sitting posture shown in FIG. 2, first, the reclining device 50 is operated to move the front seat back 22 upward. Rock it. Further, the front seat cushion 20 is moved rearward in the vehicle length direction (in the direction of arrow A2).
Slide toward.

In this case, in the first embodiment, as shown in FIG. 3, the fixing portion 34 is provided behind the foremost lock position P. For this reason, the front seat cushion 20
Is moved in the direction of arrow A2, as shown in FIG. 5B,
The lock member 32 comes into contact with the fixing portion 34, and the lock teeth 44 of the lock member 32 are inserted into the lock holes 38 provided at the foremost lock position P.

Next, in order to further adjust the front seat cushion 20 in the direction of arrow A2, first,
8 in the direction of arrow C in FIG.
By swinging the lock member 32 in the direction of arrow D, the lock member 32 is separated from the fixing portion 34. In this state, the front seat cushion 20 is moved in the direction of arrow A2 (FIG. 5C).
Operation lever 48 is released when the front seat cushion 20 reaches a predetermined position. As a result, the lock member 32 swings in the direction of arrow B via the tensile force of the spring 46, the lock teeth 44 are inserted into the arbitrary lock holes 38, and the front seat cushion 20 is fixed at a desired position. .

As described above, in the first embodiment, since the lock member 32 reliably contacts the fixing portion 34, even when the front seat cushion 20 is slid in the direction of the arrow A2 at a high speed, the lock member 32 is not used. Can be effectively prevented from jumping over the desired lock hole 38.
Therefore, the operability of the front seat 16 is improved, and
An effect is obtained that the front seat 16 can be easily and reliably fixed to a desired lock position.

Moreover, it is possible to effectively prevent the lock teeth 44 of the lock member 32 from contacting with the boundary portion of the lock hole 38 of the fixed side rail member 28 to cause damage or the like. Further, the lock device 10 only needs to provide the plate-shaped fixing portion 34 substantially corresponding to the rear side from the most distal locking position P of the fixed-side rail member 28. Thus, the configuration of the lock device 10 is simplified, and the manufacturing cost can be effectively reduced.

FIG. 7 is an explanatory perspective view of a lock device 80 according to a second embodiment of the present invention. Note that the same components as those of the lock device 10 according to the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The lock device 80 is connected to the fixed side rail member 28.
And the rod member 40, when the front seat 16 moves in the direction of arrow A2 from the front of the foremost locking position P, the locking member 32 is moved to a position corresponding to the foremost locking position P, for example, The front seat 16 is provided with a fixing mechanism 82 that can be stopped at a position immediately before the front end locking position P and can release the stopped state of the front seat 16 via the operation lever 48.

The fixing mechanism 82 includes a fixing member 84 fixed directly or close to the fixed side rail member 28, and a stopper member 88 swingably mounted on the rod member 40 via a rod-shaped spring 86. A pressing member 90 fixed to the rod member 40 and swinging the stopper member 88
And The fixing member 84 is on the tip side (in the direction of arrow A1).
Has a bent concave portion 92 via a notch at the end, and a tapered surface 94 is formed at the end on the rear end side (in the direction of arrow A2).

The stopper member 88 has a plate-shaped portion 96 fixed to the bent concave portion 92 of the fixed member 84. Both ends of the spring 86 are bridged between the plate-shaped portion 96 and the movable rail member 30. , The stopper member 88 is always moved by the arrow E
Pulling in the direction. The pressing member 90 includes the rod member 4.
The cylindrical portion 98 is integrally formed with a cylindrical portion 98 fixed to the cylindrical portion 98 and a plate-shaped portion 100 protruding from the outer peripheral portion of the cylindrical portion 98. The fixed side rail member 28 has a relief portion 10 extending a predetermined length in the direction of arrow A1 in front of the foremost lock position P.
2 are formed.

Next, the lock device 8 thus configured
The operation of 0 will be described.

First, in the normal locked state, as shown in FIG. 8A, the stopper member 88 constituting the fixing mechanism 82 is separated from the fixing member 84 in the direction of the arrow A2, and as shown in FIG. Is inserted into a predetermined lock hole 38.

When the operation lever 48 is swung in the direction of arrow C, the rod member 40 rotates in the direction of arrow D (see FIGS. 9A and 9B). For this reason, the pressing member 90
Rotates in the direction of arrow D integrally with the rod member 40, and swings the stopper member 88 in the direction of arrow D via the plate-shaped portion 100 against the elastic force of the spring 86, while the locking member 32
Lock teeth 44 are removed from the lock holes 38.

When the front seat 16 is moved in the direction of arrow A1 in this state, the movable rail member 30 moves in the direction of arrow A1, and the stopper member 88 rides on the tapered surface 94 of the fixed member 84. In this position, the operation lever 4
When the holding action of 8 is released, the rod member 40 rotates in the direction of arrow B via the elastic force of the spring 46. Accordingly, while the stopper member 88 is supported by the tapered surface 94 of the fixing member 84, the pressing member 90 rotates in the direction of arrow B, and the lock member 32 swings in the direction of arrow B to move the lock teeth 44 to a predetermined position. Insert into the lock hole 38 (FIG. 10A)
And FIG. 10B).

Further, when the locked state of the movable rail member 30 is released, as shown in FIG. 11A and FIG.
Is rotated in the direction of arrow D, and the lock member 32 is swung in the direction of arrow D integrally with the pressing member 90 to release the lock teeth 44 from the lock holes 38. When the front seat 16 is moved in the direction of the arrow A1, the lock teeth 44 of the lock member 32 are disposed at the escape portions 102 (in front of the foremost lock position P) of the fixed-side rail member 28, and the front seat 16 is moved. You can slide freely.

On the other hand, when the movable rail member 30 is moved in the direction of the arrow A2 from the front from the foremost lock position P, the locking teeth 44 of the lock member 32 move in the escape portion 102 of the fixed side rail member 28 in the direction of the arrow A2. Moving and fixing mechanism 82
Is in contact with the bent concave portion 92 of the fixing member 84 (see FIGS. 12A and 12B).

Next, the rod member 40 is
8, the stopper member 88 is detached from the bent concave portion 92 of the fixing member 84, and the lock member 32 swings largely in the arrow D direction (see FIGS. 13A and 13B). . After moving the front seat 16 to a predetermined position in the direction of arrow A2,
When the holding action of the operation lever 48 is released, the lock member 3 is released.
The second lock teeth 44 are inserted into the predetermined lock holes 38, and the movable side rail member 30 is fixed to the fixed side rail member 28.

In this case, in the second embodiment, when the front seat 16 that has once moved forward from the foremost lock position P is moved in the direction of arrow A2, the stopper member 88 constituting the fixing mechanism 82 is fixed to the fixing member 82. The movement of the front seat 16 is stopped by contacting the bent concave portion 92 at 84. In this stop position, the lock member 32 is located at the edge of the escape portion 102, that is, at the position immediately before the foremost lock position P, and only when the operation lever 48 is operated, the stopper member 88 It is separated from the fixing member 84.

Therefore, in the second embodiment, even if the front seat 16 is slid in the direction of arrow A2 at a high speed, the front seat 1 can be moved through the stopper member 88 and the fixing member 84.
6 is reliably stopped at a predetermined position, and the lock member 32 does not jump over the desired lock hole 38. Thus, the same effect as in the first embodiment can be obtained, for example, the front seat 16 can be securely fixed at a desired lock position.

FIG. 14 is an explanatory perspective view of a lock device 120 according to a third embodiment of the present invention. Note that the same components as those of the lock device 10 according to the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The locking device 120 is provided with the fixed rail member 2.
8 and one end 122a of the spring member 122 provided on the movable side rail member 30 and supporting the one end 122a of the spring member 122 when the lock member 32 moves forward from the foremost lock position P. A spring support member 124 for pulling the member 122.

The fixed side rail member 28 is provided with a pair of fixed plates 126a and 126b.
6a supports one end 122a of the spring member 122 so as to be detachable, and the fixed plate 126b
The other end 122b of 22 is fixed. Spring support member 1
24 has a bent plate shape, and on the tip side,
Claw 128 capable of supporting one end 122a of spring member 122
Is provided.

In the lock device 120 configured as described above, in the normal lock state of the front seat 16, the lock member 32 is arranged at all the lock positions provided in the direction of the arrow A2 from the foremost lock position P. At this time, the spring support member 124 provided on the movable rail member 30 is in a free state from the spring member 122 (see FIG. 15). Then, when the lock member 32 moves further forward (in the direction of the arrow A1) than the foremost lock position P, as shown in FIG. 16, the claw portion 128 of the spring support member 124 provided on the movable rail member 30 becomes the spring member. One end 122a of the base 122 is supported, and this end 122a is pulled in the direction of arrow A1.

Therefore, when the front seat 16 is returned in the direction of the arrow A2, the tension force of the spring member 122 acts on the front seat 16 via the movable rail member 30, and the front seat 16 16 can be smoothly and reliably moved with respect to the frontmost lock position P side. This prevents the front seat 16 from being erroneously recognized as being in the locked state even though the lock member 32 is disposed forward of the frontmost lock position P.
Can be surely returned to the frontmost lock position P.

FIG. 17 is an explanatory perspective view of a lock device 140 according to a fourth embodiment of the present invention. The lock device 140 is different from the lock device 10 according to the first embodiment in the third embodiment.
Of the lock device 120 according to the embodiment, the same components are denoted by the same reference numerals, and detailed description thereof will be omitted.

In the lock device 140, the lock member 3
2 moves forward from the frontmost locking position P, the tension force of the spring member 122 whose one end 122a is supported by the spring support member 124 acts on the movable rail member 30.
Moves easily and smoothly in the direction of arrow A2. Further, at the most advanced locking position P, the locking member 32 is
Touch 4. Thereby, the front seat 16 can be slid at a high speed, and the lock member 32 can be easily and reliably fixed to the foremost lock position P.

FIG. 18 is an explanatory perspective view of a lock device 160 according to a fifth embodiment of the present invention. Note that the same components as those of the lock device 10 according to the first embodiment are denoted by the same reference numerals, and a detailed description thereof will be omitted.

The locking device 160 is provided for the movable rail member 3.
A lock member 162 for integrally fixing the zero and fixed side rail members 28 to prevent the front seat 16 from moving.
And the lock member 1 provided at the foremost lock position P.
The contact surface 164 in contact with the frontmost lock position P
And a fixing portion 168 formed so as to protrude toward the lock member 162 from a contact surface 166 provided further rearward.

The lock member 162 is connected to the movable rail member 3.
Operation lever 17 that can swing freely with support shaft 170 as a fulcrum
2 at one end. The contact surfaces 164 formed on the fixing portion 168 are provided at three places corresponding to the number of the lock teeth 44 of the lock member 162.
Corresponds to the attitude of the lock member 162 in the unlocked state, and sequentially protrudes toward the lock member 162 in the direction of arrow A2 to form an inclined surface 165 as a whole (see FIG. 19). The contact surface 36 of the fixed rail member 28 is formed with a tapered surface 174 for guiding the lock member 162 to the fixed portion 168 side.

In the lock device 160 configured as described above, when the movable rail member 30 is moved in the direction of arrow A2 from the front of the foremost lock position P, the lock member 162 is locked.
Move along the contact surface 36 while maintaining the inclined posture (FIG. 19).
reference). The lock member 162 is moved along the contact surface 36 by an arrow A
When the lock member 162 is moved in two directions to reach the foremost lock position P, the lock member 162 is brought into contact with the contact surface 1 of the fixing portion 168 under the guidance of the tapered surface 174 provided on the contact surface 36.
Touch 64.

Here, the contact surface 164 is different from the other contact surfaces 16.
6, the lock member 162 protrudes more toward the lock member 162 side, the lock member 162 surely contacts the contact surface 164, and the lock member 162 is supported by the fixing portion 168 (see FIG. 20). At this time, the lock member 162 moves in the direction of the arrow A2 while being in contact with the contact surface 36 in the inclined posture, while the contact surface 164 of the fixing portion 168 moves in the inclined surface 165 corresponding to the posture of the lock member 162. Is composed.

As a result, the lock member 162 that moves in the inclined posture surely comes into contact with the contact surface 164 of the fixing portion 168, and the lock member 162 can be securely fixed to the foremost lock position P. Become. Therefore, even if the front seat 16 is slid in the direction of the arrow A2 at a high speed, the same effect as that of the first embodiment is obtained, such that the front seat 16 is reliably stopped at the foremost lock position P.

When the front seat 16 is moved to the predetermined lock position, the operation lever 172 is moved to the position shown in FIG.
By rotating the swing lever 1 in the direction of arrow F,
72 swings on the support shaft 170 as a fulcrum, and the lock member 16
2 is separated from the fixing portion 168 (see FIG. 21). In this state, the front seat 16 may be moved in the direction of the arrow A2, and the front seat 16 may be fixed at a predetermined lock position.

[0060]

As described above, in the vehicle seat locking device according to the present invention, the fixing portion is provided at the rear of the most advanced locking position, and when the seat is slid backward, the locking member is provided. It contacts the fixing portion and is fixed at the most distal locking position. For this reason, especially when the seat is slid at a high speed, the seat can be easily and reliably fixed to a desired lock position.

Further, in the vehicle seat lock device according to the present invention, when the seat moves from the front to the rear of the frontmost lock position, the locking member is stopped corresponding to the frontmost lock position, and the operation lever is operated. And a fixing function that can release the stopped state of the seat through the control unit. Therefore, even if the seat is slid at a high speed, the locking member is always stopped corresponding to the most advanced locking position, so that the seat can be accurately fixed to the desired locking position, and the locking member can jump. No damage due to

Further, in the vehicle seat lock device according to the present invention, the movable rail member supports one end of the spring member when the lock member moves forward from the most distally locked position, so that the spring member is supported. A pulling spring support member is provided. Thereby, in the normal lock state, the movable side rail member can move smoothly without being affected by the spring member, and when the lock member is located forward from the most distal end lock position, It is possible to move easily and smoothly to the frontmost lock position side via a tensile force.

In the locking device for a vehicle seat according to the present invention, the fixing portion is provided at the most distal locking position, and the contact surface of the fixing portion which contacts the locking member is provided behind the most locking position. Protruding from the contact surface to the lock member side. Therefore, the lock member surely comes into contact with the contact surface of the fixing portion, and the lock member is effectively stopped with respect to the frontmost lock position.

[Brief description of the drawings]

FIG. 1 is a schematic perspective explanatory view of a vehicle body in which a lock device according to a first embodiment of the present invention is incorporated.

FIG. 2 is an explanatory side view of a seat to which the lock device is applied.

FIG. 3 is an explanatory perspective view of the lock device.

FIG. 4 is a partial perspective explanatory view of a seat on which the lock device is mounted.

FIG. 5A is an explanatory diagram of a state in which a lock member is disposed forward of a frontmost lock position, and FIG. 5B is an explanatory diagram of a state in which the lock member is supported in contact with a fixed member; FIG. 5C is an explanatory diagram when the lock member jumps over the fixing member.

FIG. 6 is an explanatory side view of a state where the sheet is configured in a flat shape.

FIG. 7 is an explanatory perspective view of a lock device according to a second embodiment of the present invention.

FIG. 8A is a longitudinal sectional view of the fixing mechanism in a normal locked state, and FIG. 8B is a longitudinal sectional view of a lock member at that time.

FIG. 9A is a vertical sectional view of the fixing mechanism in an unlocked state, and FIG. 9B is a vertical sectional view of the lock member at that time.

10A is a longitudinal sectional view of the fixing mechanism in a tapered state, and FIG. 10B is a longitudinal sectional view of the lock member at that time.

FIG. 11A is a longitudinal sectional view of the fixing mechanism that shifts from the tapered riding state to the unlocked state, and FIG. 11B is a longitudinal sectional view of the locking member at that time.

FIG. 12A is a vertical cross-sectional explanatory view of a stopped state by the fixing mechanism, and FIG. 12B is a vertical cross-sectional explanatory view of the lock member at that time.

FIG. 13A is an explanatory longitudinal sectional view of the fixing mechanism when releasing the stop state, and FIG. 13B is an explanatory longitudinal sectional view of the lock member at that time.

FIG. 14 is an explanatory perspective view of a lock device according to a third embodiment of the present invention.

FIG. 15 is an explanatory longitudinal sectional view of the lock device according to the third embodiment when the front seat is in a normal locked state.

FIG. 16 is an explanatory longitudinal sectional view of the lock device according to the third embodiment in a state where a front seat is disposed in front of a frontmost lock position.

FIG. 17 is an explanatory perspective view of a lock device according to a fourth embodiment of the present invention.

FIG. 18 is an explanatory perspective view of a lock device according to a fifth embodiment of the present invention.

FIG. 19 is an explanatory longitudinal sectional view when a lock member constituting the lock device according to the fifth embodiment moves from the frontmost position of the lock position.

FIG. 20 is an explanatory view of a state where the lock member is in contact with a fixing portion provided at the foremost lock position.

FIG. 21 is an explanatory diagram of a state where the lock member is detached from the fixing portion.

FIG. 22 is an explanatory diagram when a conventional sheet is brought into a full flat state.

FIG. 23 is an explanatory diagram of a state in which the conventional seat is configured to be further movable forward.

[Explanation of symbols]

10, 80, 120, 140, 160: Locking device 12: Body 16: Front seat 18: Rear seat 28: Fixed rail member 30: Movable rail member 32, 162: Lock member 34, 168: Fixed portion 40 ... Rod members 48,172 ... Operation lever 82 ... Fixing mechanism 84 ... Fixing member 86 ... Spring 88 ... Stopper member 90 ... Pressing member 92 ... Bent recess 94 ... Tapered surface 100 ... Plate portion 122 ... Spring member 124 ... Spring support member 126a, 126b
... Fixing plate 128 ... Claws 164, 166 ... Contact surface 165 ... Slope surface P ... Cutting edge lock position

Claims (7)

[Claims] 1. A locking device for a vehicle seat for fixing a seat slidable forward and backward from a frontmost lock position at an arbitrary position behind said frontmost lock position while moving forward and backward in a vehicle length direction. A fixed-side rail member mounted on the vehicle side, a movable-side rail member mounted on the seat side, and the movable-side rail member and the fixed-side rail member are integrally fixed to prevent movement of the seat. And a fixing portion provided rearward of the most distal locking position and fixed to the most locking position by contacting the locking member. Locking device for seat. 2. A vehicle seat lock device for fixing a seat which is slidable forward and forward from a frontmost locking position while moving forward and backward in a vehicle length direction, the vehicle seat locking device comprising: A fixed-side rail member mounted on the vehicle side, a movable-side rail member mounted on the seat side, and the movable-side rail member and the fixed-side rail member are integrally fixed to prevent movement of the seat. A lock member, a rod member for rotating the lock member via an operation lever, and the fixed side rail member and the rod member,
When the seat moves from the front to the rear of the foremost lock position, the lock member is stopped corresponding to the foremost lock position, and the stop state of the seat can be released via the operation lever. A locking device for a vehicle seat, comprising: a mechanism. 3. The locking device according to claim 2, wherein the fixing mechanism has a bent concave portion at a front end and a tapered surface at a rear end, and a spring attached to the rod member. A vehicle comprising: a stopper member that is swingably mounted via a fixed member and fixed to a bent concave portion of the fixed member; and a pressing member that is fixed to the rod member and swings the stopper member. Locking device for seat. 4. A locking device for a vehicle seat for fixing a seat slidable forward and backward from a frontmost locking position at an arbitrary position behind said frontmost locking position while moving forward and backward in a vehicle length direction. A fixed-side rail member mounted on the vehicle side, a movable-side rail member mounted on the seat side, and the movable-side rail member and the fixed-side rail member are integrally fixed to prevent movement of the seat. A spring member having both ends supported by the fixed-side rail member; one end of the spring member provided on the movable-side rail member, when the lock member moves forward from the most-most-most locked position. And a spring supporting member for supporting the pulling member and pulling the spring member. 5. A locking device for a vehicle seat for fixing a seat slidable forward and backward from a frontmost lock position to an arbitrary position behind the frontmost lock position while moving forward and backward in a vehicle length direction. A fixed-side rail member mounted on the vehicle side, a movable-side rail member mounted on the seat side, and the movable-side rail member and the fixed-side rail member are integrally fixed to prevent movement of the seat. A lock member, provided at a position rearward of the frontmost lock position, and a fixing portion for fixing the lock member to the frontmost lock position by contacting the lock member; and both ends of the fixed side rail member. A supported spring member, provided on the movable side rail member, for supporting one end of the spring member when the lock member moves forward from the frontmost lock position. Vehicle seat lock device characterized in that it comprises a spring supporting member to pull the spring member Te. 6. A vehicle seat locking device for fixing a seat that is slidable forward and backward from a frontmost lock position while moving forward and backward in a vehicle length direction at an arbitrary position behind the frontmost lock position. A fixed-side rail member mounted on the vehicle side, a movable-side rail member mounted on the seat side, and the movable-side rail member and the fixed-side rail member are integrally fixed to prevent movement of the seat. A lock member provided at the most distal locking position, and a contact surface that comes into contact with the lock member protruding toward the lock member from a contact surface provided behind the most distal locking position. And a locking device for a vehicle seat. 7. The lock device according to claim 6, wherein the lock member is provided on a swingable operation lever, and the contact surface formed on the fixing portion is provided on the lock member in an unlocked state. A locking device for a vehicle seat, wherein an inclined surface is formed corresponding to a posture.