JP2001130295A - Seat locking device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To ensure the locking, to simplify the constitution, and to improve the operability. SOLUTION: This seat locking device for a vehicle comprises a striker 2 fixed to a vehicle body side, and an engagement member 4 with a plurality of engagement grooves to be turnably pivotably attached to a body 1 on a seat side and engaged with the striker 2 continuously arranged in the longitudinal direction, and the engagement member 4 is provided with an engagement body 10 with a detachment preventive body 15 which is turnably and pivotably attached to the body engaged therewith.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lock device called a reclining adjust or the like for changing and holding an inclination angle of a vehicle backrest sheet.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Utility Model Publication No. Sho 56-63634 discloses a striker fixed to a vehicle body and a plurality of engagement grooves which are rotatably mounted on a seat body and are engaged with the striker. A vehicle seat lock device including an engaging member arranged in a longitudinal direction is described.

[0003]

The above-mentioned known example has a problem that the lock may be released when a load or impact is applied since the engaging body is only engaged with the striker by the elastic force of the spring. is there. In addition, there is a problem that the engagement member must be operated to lock the seat, and the operability is low. However, if devised, locking is ensured and operability is improved.

[0004]

The object of the present invention is to secure the lock, simplify the structure, and improve the operability.

[0005]

According to the present invention, a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on a body 1 on a seat side and engaged with the striker 2 are provided. And engaging members 4 arranged side by side in the direction.
Is a vehicle seat lock device provided with an engagement body 10 which is engaged with a disengagement prevention body 15 rotatably mounted on the body 1. In the present invention, the engaging body 10 is formed in a protruding shape protruding laterally on the side surface of the engaging member 4, and a cam surface 18 formed on the outer peripheral surface of the disengagement prevention body 15 is provided on the upper surface of the engaging body 10. This is a vehicle seat lock device in contact with the vehicle. The present invention relates to an engaging member 4 having a plurality of engaging grooves rotatably mounted on the body 1 on the seat side and being engaged with the striker 2 on the vehicle body, and a rotatably mounted on the body 1. A disengagement preventive body 15 for preventing the reverse rotation of the engaging member 4 and an opening and rotating operation of the engaging member 4 connected to an operation rod 13 locked to an operation member such as an arbitrary knob; This is a vehicle seat lock device constituted by an opening lever 11 for releasing the pressing. According to the present invention, the release prevention member 15 includes an opening lever 1.
1 attached thereto and formed on the release lever 11
The engaging member 10 is inserted into and engaged with the guide hole 12 which is long in the moving direction, so that the release lever 11 is configured to rotate the release member 15 to open and then rotate the engaging member 4 to rotate. This is a vehicle seat lock device. The present invention relates to an engaging member 4 having a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on a body 1 on a seat side and engaging with the striker 2 in the longitudinal direction. At the tip of the engaging member 4, an inclined guide surface 6 is formed at the tip end of the engaging member 4 to make the striker 2 abut and rotate the engaging member 4 upward. This is a vehicle seat lock device provided with a holding body 20 held at an initial standby position where the inclined guide surface 6 acts. In the present invention, the engaging member 4 is provided with an engaging body 10 which engages with a disengagement prevention body 15 rotatably mounted on the body 1, and the holding body 20 is provided on the inclined guide surface 6 with the striker 2. The vehicle seat lock device is configured to be held at an initial standby position where the restriction of the disengagement prevention member 15 is released so that the engagement member 4 rotates upward by contact with the vehicle. According to the present invention, the holding body 20 is formed in a substantially L-shape in a side view, and an intermediate portion is attached to the body 1 by an attaching shaft 21.
The one end 22 has a retracted position located below the striker entrance groove 3 and a holding member that enters the striker entrance groove 3 and engages with a holding projection 25 provided on a side surface of the engaging member 4 from below. This is a vehicle seat lock device configured to be rotatably mounted around the mounting shaft 21 between positions.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a body of the lock device, and a striker entry groove 3 into which a striker 2 fixed to the vehicle body enters at an upper and lower intermediate portion thereof.
To form A hook-shaped engaging member 4 is attached to the body 1 by an engaging member attaching shaft 5. The engaging member 4 forms an inclined guide surface 6 having an inclination that becomes higher toward the distal end on the lower surface side of the distal end. The inclined guide surface 6 is formed as an inclined surface that acts to rotate the engaging member 4 upward when the striker 2 enters and abuts. Engaging member mounting shaft 5 of inclined guide surface 6
A first-stage engagement groove 7 with which the striker 2 is engaged is formed in the engagement member 4 on the side, and the striker 2 is engaged between the first-stage engagement groove 7 and the engagement member mounting shaft 5. Second stage engaging groove 8
To form An abutment surface 9 against which the striker 2 abuts is formed in the engagement member 4 on the inner side of the second-stage engagement groove 8, and the second-stage engagement groove 8 is provided in a state where the striker 2 abuts against the abutment surface 9.
Engage. Note that a plurality of engagement grooves with which the striker 2 engages may be formed between the first-stage engagement groove 7 and the second-stage engagement groove 8.

A shaft-shaped engaging body 10 protruding to the front side is provided on a side surface of the engaging member 4, and a guide hole 12 of an opening lever 11 is inserted into and engaged with the engaging body 10. One end of the operating rod 13 is attached to the shaft 19 above the opening lever 11.
The other end of the operation rod 13 is locked to an operation member 18 such as an arbitrary knob. When the striker 2 enters the striker entrance groove 3, the engagement member 4 is initially guided by the inclined guide surface 6 to move upward, and engages when the striker 2 reaches below the first-stage engagement groove 7. Next, the operating rod 1
When the engaging member 4 is moved upward by the lever 3, the striker 2 becomes movable.
Engages. Reference numeral 14 denotes a spring provided between the operation rod 13 and the fixed portion, which always lowers the operation rod 13 and urges the engagement member 4 to rotate in the locking direction.

[0010] At the position above the striker entrance groove 3, there is provided a disengagement prevention member 15 for pressing the engagement member 10 of the engagement member 4 from above. The detachment prevention body 15 is rotatably attached to the body 1 by an prevention body attachment shaft 16, and the opening lever 11 is attached to the detachment prevention body 15 by a pin 17. A cam surface 18 is formed on the lower surface of the detachment prevention body 15,
The cam surface 18 is configured to abut against the engaging body 10 from above and press it to restrict the upward rotation of the engaging member 4 due to an impact or a load. When the release lever 11 is moved upward to release the striker 2, the release prevention body 15 is also pulled by the release lever 11 and pivots upward to separate from the upper surface of the engagement body 10. In this case, The guide hole 12 of the opening lever 11 is formed with a margin in the moving direction of the opening lever 11, and when the opening lever 11 is moved upward, the disengagement prevention body 15 is immediately rotated upward to disengage from the engagement body 10. However, the upward pulling of the engagement body 10 by the release lever 11 is performed after the disengagement prevention body 15 is disengaged, thereby preventing mechanical lock.

Thus, a holder 20 for holding the engaging member 4 at the initial standby position is provided at a position below the distal end of the striker entrance groove 3. That is, the engaging member 4 is suppressed from above by the disengagement prevention body 15 at the position where the striker 2 is engaged with the engaging groove (first-step engaging groove 7), and the striker 2 enters temporarily at this position. Even if the engagement member 4 comes into contact with the inclined guide surface 6 of the engagement member 4
Therefore, before the striker 2 enters, the engaging member 4 is held (standby) by the holding member 20 at a position where the inclined guide surface 6 operates but the disengagement prevention member 15 does not operate. The holding body 20 is formed in a substantially L-shape when viewed from the side, and an intermediate portion is attached to the body 1 by an attachment shaft 21, and one end 22 thereof is engaged with a holding projection 25 provided on a side surface of the engagement member 4 from below. Around the mounting shaft 21 between the holding position where the striker 2 is engaged and the retreat position located below the striker entrance groove 3 when the striker 2 is engaged with another engagement groove (second stage engagement groove 8). Mount freely. A spring 27 is attached to the other end 26 of the holding body 20, and the holding body 20 is configured to be over a so-called dead center so as to be located at any of the retracted position and the holding position.

When the striker 2 enters the striker entrance groove 3, the striker 2 pivots one end 22 to be disengaged from the holding projection 25, and the engaging member 4 pivots downward to engage the striker 2. The striker 2 stops at this position and is not rotated by the movement of the striker 2 in this state. Further, the engagement member 4 is operated by the operation rod 13.
When the striker 2 is disengaged from the striker entrance groove 3 by rotating the striker 2 upward, the other end 26 is pushed by the striker 2 that moves outward (extracts), and the holding body 20 rotates to return to the original position, and the operating rod 13 Is returned, the holding projection 25 of the engaging member 4 rests on the upper surface of the one end 22 of the holding body 20. Reference numeral 28 denotes a stopper for stopping the rotation of the holder 20.

A cover 30 is mounted on the back side of the body 1, a mounting plate 31 is provided on the front side of the body 1, and the vehicle seat 3 having the mounting plate 31 provided on the vehicle body.
The second backrest seat 33 is attached to the side surface, and the backrest seat 33 is rotatably attached to the seat 34. In the embodiment, the vehicle seat 32 is configured as a seat in the second and subsequent rows, and the inclination angle of the backrest seat 33 is changed in two stages. Reference numeral 35 denotes a backrest frame of the backrest sheet 33, and reference numeral 36 denotes a fixing bracket fixed to the vehicle body side.

[0012]

[Operation] The backrest sheet 3 having the above-described configuration and in the forwardly inclined state.
When the striker 3 is raised, the striker 2 enters the striker entrance groove 3 of the body 1, the striker 2 comes into contact with the inclined guide surface 6 of the engaging member 4, and the inclined guide surface 6 connects the engaging member 4 to the engaging member mounting shaft. When the striker 2 passes through the inclined guide surface 6 and reaches below the first-step engagement groove 7, it is engaged. In this case, an engagement body 10 protruding to the front side is provided on the side surface of the engagement member 4, and a disengagement prevention body 15 for pressing the engagement body 10 of the engagement member 4 from above is provided above the striker entry groove 3. Therefore, when the striker 2 engages with the first-step engagement groove 7 of the engagement member 4, the disengagement prevention body 15 presses the engagement body 10 from above, so that even if there is vertical vibration or impact, The upward rotation of the member 4 is prevented, and the locked state of the striker 2 and the engagement member 4 is maintained.

Therefore, since there is the detachment prevention body 15,
In the normal position, even if the striker 2 hits the inclined guide surface 6 of the engaging member 4, the engaging member 4 does not rotate upward. A holding body 20 for holding the member 4 at the initial standby position is provided, and the holding projection 25 on the side surface of the engaging member 4 is placed on the upper end of one end 22 of the holding body 20 and held at the initial standby position.
Therefore, when the backrest sheet 33 is erected, the engaging member 4 is engaged with the striker 2 just by erecting the backrest sheet 33 without any operation, thereby improving the operability. Then
When the striker 2 enters the striker entrance groove 3, the holding body 20 rotates and one end 22 is disengaged from the holding projection 25, whereby the engagement member 4 that has lost support is rotated downward to engage the striker 2. The striker 2 stops at this position and is not rotated by the movement of the striker 2 in this state.

Thus, another second-stage engaging groove 8 is formed on the engaging member mounting shaft 5 side of the first-stage engaging groove 7 of the engaging member 4, and the engaging member 10 of the engaging member 4 is formed on the engaging member 10. Is a guide hole 1 of an opening lever 11 whose other end is locked to an operating member such as an arbitrary sill knob.
When the release lever 11 is moved upward by the operation rod 13, the guide hole 12 of the release lever 11 pulls the engagement body 10 upward, and the engagement member 4 is engaged. The striker 2 is pivoted upward about the member mounting shaft 5 to disengage the striker 2 from the first-step engagement groove 7. Next, in this state, when the backrest sheet 33 is tilted rearward, the striker 2 enters the innermost position of the striker entrance groove 3 and the abutting surface of the second stage engagement groove 8 of the engagement member 4. 9 and then the release lever 11 is released, the second-step engaging groove 8 of the engaging member 4 engages with the striker 2, and the backrest sheet 3 at the position of the second step.
Lock 3

In the above case, the disengagement prevention member 15 is
Is mounted by the prevention member mounting shaft 16 parallel to the engaging member mounting shaft 5 of the engaging member 4 so that the direction of the rotation axis is parallel to the upper position. The release prevention member 15 is coincident with the release prevention member 15, and the release operation of the release lever 11 releases the restriction of the release prevention member 15, and then the lock of the engaging member 4 is released, and only the release operation of the release lever 11 is performed. Therefore, not only the operability is improved, but also a rational configuration is obtained. Also, the cam surface 1 of the disengagement prevention body 15 is provided on the engagement body 10.
8 and the cam surface 18 is formed in a shape that keeps holding the engagement body 10 when the engagement member 4 is rotated upward in the unlock direction, but the disengagement prevention body 15 is rotated in the restriction release direction. When the opening lever 11 is opened, the restriction is reliably released by the opening operation of the opening lever 11.

Also, as described above, the release lever 11
Guide hole 12 is formed with a little margin in the movement direction of the opening lever 11, so that when the opening lever 11 is moved upward, the disengagement prevention body 15 is first turned upward to be disengaged, and The lock of the joint member 4 is released to prevent mechanical lock. Thus, the spring 14 is provided between the operation rod 13 and the fixed portion (the cover 30), and the spring 14 constantly urges the operation rod 13 to move downward.
When the striker 2 reaches the first-stage engagement groove 7, the engagement member 4 immediately rotates and engages in the locking direction, and operates when the striker 2 reaches the second-stage engagement groove 8. When the striker 2 engages with the first-stage engagement groove 7 or the second-stage engagement groove 8 when the hand is released from the rod 13, the disengagement prevention body 15 also moves the release lever 11 by the elastic force of the spring 14. It moves down and comes into contact with the engagement body 10.

However, as described above, the guide hole 12 of the opening lever 11 engaged with the operating member such as an arbitrary sill knob is engaged with the engaging body 10 of the engaging member 4 at the other end. When the release lever 11 is moved upward by the operating rod 13, the guide hole 12 of the release lever 11
Is pulled upward, whereby the engaging member 4 is pivoted upward about the engaging member mounting shaft 5 to disengage the striker 2 from the first-step engaging groove 7. When the backrest sheet 33 is lowered in this state, the striker 2 comes out of the striker entrance groove 3 of the body 1, and when the striker 2 comes off, the other end 2 of the holding body 20
6 is pushed and rotated, and one end 22 of the holding body 20 is positioned below the holding projection 25 on the side surface of the engaging member 4. Next, when the hand is released from the operating member, the holding projection 25 on the side surface of the engaging member 4 is placed on the upper end of the one end 22 of the holding body 20 and is held at the initial standby position.

The backrest sheet 33 is lying down while the engaging member 4 is rotatable. When the backrest sheet 33 is raised as described above, locking and unlocking are repeated. Therefore, not only does the lock operation not necessary when raised from the falling body, but also when the member is lowered from the standing state, the engaging member 4 automatically returns to the initial state, and the lock standby operation is not required.

[0019]

According to the present invention, a striker 2 fixed to a vehicle body is provided.
And an engaging member 4 which is rotatably mounted on the body 1 on the seat side and has a plurality of engaging grooves which are engaged with the striker 2 and are arranged in the longitudinal direction. Since the vehicle seat lock device is provided with the engagement body 10 which is engaged with the disengagement prevention body 15 rotatably mounted on the body 1, the disengagement prevention body 15 is engaged with the engagement body 10. Even if there is vibration or impact, the upward rotation of the engagement member 4 is prevented, and the locked state of the striker 2 and the engagement member 4 is maintained.
Lock securely. In the present invention, the engaging body 10 is formed in a protruding shape protruding laterally on the side surface of the engaging member 4, and a cam surface 18 formed on the outer peripheral surface of the disengagement prevention body 15 is provided on the upper surface of the engaging body 10. Since the vehicle seat lock device is brought into contact with the vehicle, the locking member 4 is kept pressed in the unlocking direction of the engagement member 4 to be securely locked. It is immediately away from 10 and works reliably with a simple configuration. The present invention relates to an engaging member 4 having a plurality of engaging grooves rotatably mounted on the body 1 on the seat side and being engaged with the striker 2 on the vehicle body, and a rotatably mounted on the body 1. A disengagement preventive body 15 for preventing the reverse rotation of the engaging member 4 and an opening and rotating operation of the engaging member 4 connected to an operation rod 13 locked to an operation member such as an arbitrary knob; The release prevention member 15 is engaged with the engaging member 4 so as to be engaged even if there is a vibration or an impact. The upward rotation of the member 4 is prevented, the locked state of the striker 2 and the engagement member 4 is maintained, the lock is securely performed, and the release rotation operation of the engagement member 4 and the release of the release prevention member 15 are released. Since the operation can be performed by the opening lever 11, the operability is improved. To above. According to the present invention, the release prevention member 15 includes an opening lever 1.
1 attached thereto and formed on the release lever 11
The engaging member 10 is inserted into and engaged with the guide hole 12 which is long in the moving direction, so that the release lever 11 is configured to rotate the release member 15 to open and then rotate the engaging member 4 to rotate. Because it is a vehicle seat lock device,
The occurrence of mechanical lock of the disengagement prevention body 15 during the unlock operation is prevented. The present invention relates to a striker 2 fixed to the vehicle body side.
And an engaging member 4 which is rotatably mounted on the body 1 on the seat side and has a plurality of engaging grooves which are engaged with the striker 2 and are arranged side by side in the longitudinal direction. In addition, an inclined guide surface 6 for rotating the engaging member 4 upward by contacting the striker 2 is formed, and an initial standby position where the inclined guide surface 6 of the engaging member 4 acts on the body 1. The vehicle seat lock device is provided with the holding member 20 for holding the vehicle. Therefore, only by raising the backrest sheet 33 in the forward tilted state, the engaging member 4 is formed by the holding member 20 and the inclined guide surface 6.
Engages and locks the striker 2 to improve operability. In the present invention, the engaging member 4 is provided with an engaging body 10 which engages with a disengagement prevention body 15 rotatably mounted on the body 1, and the holding body 20 is provided on the inclined guide surface 6 with the striker 2. Is held at an initial standby position where the restriction of the disengagement prevention body 15 is released so that the engagement member 4 is rotated upward by contact. Since the detachment prevention body 15 is located at the non-operation position and the engagement member 4 is held so as to be at the initial standby position, the engagement member 4 is surely once rotated upward and then locked, and the operation is started. to be certain. In the present invention, the holding body 20 is formed in a substantially L-shape when viewed from the side, and an intermediate portion is attached to the body 1 by an attaching shaft 21, and one end 22 of the holding body 20 is located at a retracted position located below the striker entrance groove 3. And a rotatable mount around the center of the mounting shaft 21 between a holding position where it enters into the striker entering groove 3 and engages from below with a holding projection 25 provided on a side surface of the engaging member 4. With this configuration, the engagement member 4 can be held at the initial standby position and the holding at the initial standby position can be mechanically automated with a simple configuration. Since the body 1 of the lock device and the striker 2 only need to move relatively, the configuration such as the mounting position is not limited by the expression. The body 1 of the lock device is placed on the vehicle body side, and the striker 2 is placed on the seat. It may be provided on the side.

[Brief description of the drawings]

FIG. 1 is an assembled perspective view of a lock device.

FIG. 2 is a partially omitted side view of the lock device in an initial standby state.

FIG. 3 is a partially omitted side view of the lock device in a state where the striker has come into contact with the inclined surface and has started to rotate upward.

FIG. 4 is a partially omitted side view of the lock device in a state where the striker is engaged.

FIG. 5 is a partially omitted side view of the lock device in an unlock operation initial state.

FIG. 6 is a partially omitted side view of the lock device in a state where the striker has entered all the way.

FIG. 7 is a partially omitted side view of the lock device in a state where the striker is engaged in the second stage.

FIG. 8 is a schematic perspective view of a lock device.

FIG. 9 is a perspective view of a seat.

FIG. 10 is a perspective view showing an example of a frame on which a lock device is mounted.

[Explanation of symbols] 1 ... body, 2 ... striker, 3 ... striker entrance groove,
4 ... engagement member, 5 ... engagement member mounting shaft, 6 ... inclined guide surface,
7: first-stage engagement groove, 8: second-stage engagement groove, 9: abutting surface, 1
0: engagement body, 11: release lever, 12: guide hole, 13
... operation rod, 14 ... spring, 15 ... preventing body, 16 ...
Prevention body mounting shaft, 17 ... pin, 20 ... holding body, 21 ... mounting shaft, 22 ... one end, 25 ... holding projection, 26 ... other end, 27
... Spring, 30 ... Cover, 31 ... Mounting plate, 32 ... Vehicle seat, 33 ... Backrest seat, 34 ... Seat seat.

Claims (7)

[Claims] 1. An engaging member having a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on a body 1 on a seat side and engaged with the striker 2 in a longitudinal direction. 4
A seat lock device for a vehicle, wherein an engagement member 10 is provided on the engagement member 4 to be engaged with a disengagement prevention member 15 rotatably mounted on the body 1. 2. The engaging member 10 according to claim 1, wherein the engaging member 10 is formed in a projecting shape protruding laterally on a side surface of the engaging member 4, and is formed on an upper surface of the engaging member 10 and on an outer peripheral surface of the disengagement preventing member 15. A vehicle seat lock device in which the formed cam surface 18 is brought into contact. 3. An engaging member 4 having a plurality of engaging grooves rotatably mounted on the body 1 on the seat side and engaging with the striker 2 on the vehicle body, and rotatably mounted on the body 1. A stopper 15 for preventing reverse rotation of the engaging member 4 and an opening / rotating operation of the engaging member 4 connected to an operating rod 13 locked to an operating member such as an arbitrary knob. A seat lock device for a vehicle, comprising: an opening lever for releasing the pressing of the seat. 4. The detachment prevention member 15 according to claim 3,
, A release lever 11 is attached thereto, and the engaging body 10 is inserted into and engaged with a guide hole 12 formed in the release lever 11 and extending in the moving direction of the lever 11.
A vehicle seat lock device configured to open and rotate the engagement member 4 after opening and releasing the detachment prevention body 15. 5. An engaging member in which a striker 2 fixed to a vehicle body and a plurality of engaging grooves rotatably mounted on the body 1 on a seat side and engaged with the striker 2 are arranged in the longitudinal direction. 4
The striker 2 comes in contact with the tip of the engaging member 4 and the inclined guide surface 6 rotates the engaging member 4 upward.
And the body 1 is provided with the engaging member 4.
A vehicle seat lock device provided with a holding body 20 that is held at an initial standby position where the inclined guide surface 6 acts. 6. An engaging member according to claim 5, wherein said engaging member is provided with an engaging member engaged with a disengagement preventing member rotatably mounted on said body, said holding member being provided on said inclined guide. A vehicle seat lock device configured to hold the striker 2 at an initial standby position where the restriction of the disengagement prevention body 15 is released so that the striker 2 abuts on the surface 6 to rotate the engagement member 4 upward. 7. The holding device according to claim 6, wherein
It is formed in a substantially L-shape when viewed from the side, and an intermediate portion is attached to the body 1 by an attachment shaft 21, and one end 22 of the intermediate portion enters the retreat position located below the striker entry groove 3 and the striker entry groove 3. A vehicle seat lock device configured to be rotatably mounted around the mounting shaft 21 between a holding position where the holding protrusion 25 is provided on a side surface of the engaging member 4 and a holding position for engaging the holding protrusion 25 from below.