JP4429480B2 - Vehicle seat lock device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a locking device called a reclining adjust or the like that changes and holds the inclination angle of a vehicle backrest seat.
[0002]
[Prior art]
Japanese Unexamined Patent Application Publication No. 56-63634 discloses a striker fixed to the vehicle body side and a plurality of engaging grooves that are pivotally attached to the body on the seat side and engage with the striker in the length direction. A vehicular seat lock device including an engaging member arranged in parallel is described.
[0003]
[Problems to be solved by the invention]
The known example has a problem that the lock may be released when a load or an impact is applied because the engaging body is only engaged with the striker by the elasticity of the spring.
Further, in order to lock the seat, the engaging body must be operated, and there is a problem that the operability is low.
Further, the striker has a problem that the operability is low, such as passing through the first engagement groove and engaging with the engagement groove on the back side.
In addition, there is a problem that even if the striker enters, the striker may return due to a reaction that hits the inner periphery of the engagement groove, resulting in an idle swing.
However, if devised, the lock is ensured and the operability is improved.
[0004]
OBJECT OF THE INVENTION
Ensuring locking, simplifying configuration, and improving operability.
[0005]
  The present invention includes a striker 2 fixed on the vehicle body side, and an engagement member 4 in which a plurality of engagement grooves that are pivotally attached to the body 1 on the seat side and engage with the striker 2 are arranged in parallel in the length direction. The first stage engagement groove 7 with which the striker 2 first engages among the engagement grooves of the engagement member 4 is:The engagement groove 7 of the engagement member 4 with which the striker 2 is engaged isStriker 2 sideForward againstA front inner circumferential surface 35 located;Located behind the striker 2 sideA rear inner peripheral surface 36,Front inner peripheral surface 35Bottom edge ofLower end of the rear inner peripheral surface 36 further downwardWas positionedA part of the lower portion of the rear inner peripheral surface 36 of the engagement groove is the engagement groove, and the striker 2 that locks the engagement member 4 and a position behind the engagement position of the engagement groove are partly viewed. Formed on the receding surface 37 locatedThis is a vehicle seat lock device.
  The present invention is a vehicle seat lock device in which the receding surface 37 is formed in an arc shape so as to be rearward as it goes downward.
  The present inventionA striker 2 fixed to the vehicle body side and an engagement member 4 that is pivotally attached to the body 1 on the seat side and engages with the striker 2, and the engagement member 4 with which the striker 2 engages. The engagement groove 7 has a front inner peripheral surface 35 positioned forward with respect to the striker 2 side and a rear inner peripheral surface 36 positioned rearward with respect to the striker 2 side, and a lower end of the front inner peripheral surface 35. The engagement groove in which the lower end of the rear inner peripheral surface 36 is positioned further downward,An inclined guide surface 6 is formed at the distal end of the engaging member 4 to contact the striker 2 and rotate the engaging member 4 upward, and the body 1 has an inclined guide surface of the engaging member 4. The vehicle seat lock device is provided with a holding body 20 that is held at an initial standby position where 6 acts.
  According to the present invention, the engagement member 4 is provided with an engagement body 10 that engages with a disengagement prevention body 15 pivotally attached to 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 the initial standby position where the restriction of the disengagement prevention body 15 is released so that the engagement member 4 is pivoted upward by contact.
  In 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 a mounting shaft 21, and one end 22 thereof is a retracted position located below the striker entry groove 3. Attached so as to be rotatable about the attachment shaft 21 between the holding position where the striker entering groove 3 is engaged with the holding projection 25 provided on the side surface of the engaging member 4 from the lower side. The vehicle seat lock device is configured.
[0006]
【Example】
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a body of a locking device, and a striker entry groove 3 into which a striker 2 fixed to a vehicle body enters is formed at an upper and lower intermediate portion thereof.
A hook-shaped engagement member 4 is attached to the body 1 by an engagement member attachment shaft 5. The engaging member 4 forms an inclined guide surface 6 having an inclination that becomes higher as it reaches the distal end lower surface side. 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 contacts.
The engaging member 4 on the side of the engaging member mounting shaft 5 of the inclined guide surface 6 is formed with a first-stage engaging groove 7 to which the striker 2 is engaged, and the first-stage engaging groove 7 and the engaging member mounting A second stage engaging groove 8 is formed between the shafts 5 to engage the striker 2. An abutting surface 9 against which the striker 2 abuts is formed on the engaging member 4 on the back side of the second stage engaging groove 8, and the second-stage engaging groove 8 is engaged with the striker 2 abutting against the abutting surface 9. To do. A plurality of engagement grooves with which the striker 2 is engaged may be formed between the first-stage engagement groove 7 and the second-stage engagement groove 8.
In this case, the first stage engaging groove 7 has a front inner peripheral surface 35 and a rear inner peripheral surface 36 located on the striker 2 side, and the lower end of the rear inner peripheral surface 36 is defined as the front inner peripheral surface. It is formed so as to be positioned below the lower end of 35 (FIG. 11), and when the striker 2 passes through the inclined guide surface 6 and the lower end of the front inner peripheral surface 35, it always contacts the rear inner peripheral surface 36. .
Further, when the rear inner peripheral surface 36 is in a locked state, the rear inner peripheral surface 36 is inclined in a straight line or an arc shape so as to become the rear side as it goes downward, and the front-rear width of the front inner peripheral surface 35 and the rear inner peripheral surface 36 is The striker 2 is formed narrow so as to extend upward, and the striker 2 is formed so as to be in contact with and lock against both the front inner peripheral surface 35 and the rear inner peripheral surface 36 while leaving a gap above the first stage engaging groove 7. (FIG. 14).
Thus, a part of the lower part of the rear inner peripheral surface 36 is formed on the receding surface 37 (FIG. 11). The receding surface 37 is formed in the lower part of the rear inner peripheral surface 36 with which the striker 2 abuts when the striker 2 passes through the inclined guide surface 6 and the lower end of the front inner peripheral surface 35. The receding surface 37 is formed below the stepped portion 38 that is recessed on the rear side provided at the upper portion, and is inclined in a straight line or an arc shape so as to become the rear side as it goes downward. That is, the receding surface 37 in a side view is positioned on the back side with respect to the lock position of the striker 2 that locks in the first stage engaging groove 7, and the striker 2 tries to move to the front side when the striker 2 hits the engaging member 4. (FIG. 13), until the striker 2 is once moved to the back side by the retreating surface 37 from the predetermined lock position to be engaged with the first stage engaging groove 7, until the engaging member 4 is rotated downward and locked. Earn time and secure locks.
Further, the rear inner peripheral surface 36 is inclined linearly or arcuately toward the rear as it goes downward, and the receding surface 37 is positioned rearward (back side) from the rear inner peripheral surface 36. The rear inner peripheral surface 36 is configured to be separated from the striker 2 when rotating upward from the engagement locked state with the striker 2 to the unlocked state.
Thus, the lower part of the rear inner peripheral surface 36 (retracted surface 37) is lower than the lower part of the front inner peripheral surface 40 of the second stage engaging groove 8, and the lower part of the rear inner peripheral surface 36 (retracted surface 37) The front inner peripheral surface 40 of the second stage engaging groove 8 is inclined so as to increase as it reaches the rear side.
[0007]
A shaft-shaped engaging body 10 protruding to the front side is provided on the side surface of the engaging member 4, and the engaging body 10 is engaged with the guide hole 12 of the opening lever 11. One end of an operating rod 13 is attached to the upper part of the opening lever 11 by a shaft 19, and the other end of the operating rod 13 is locked to an operating member 18 such as an arbitrary knob.
When the striker 2 enters the striker entry groove 3, the engagement member 4 is first moved up by being guided by the inclined guide surface 6, and is engaged when the striker 2 reaches below the first-stage engagement groove 7. Next, when the engagement member 4 is moved upward by the operation rod 13, the striker 2 becomes movable, and when it is moved to the back side, it engages with the second-stage engagement groove 8.
Reference numeral 14 denotes a spring provided between the operation rod 13 and the fixed portion, which constantly lowers the operation rod 13 and thereby urges the engagement member 4 to rotate in the locking direction.
[0008]
Accordingly, 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. The detachment prevention body 15 is rotatably attached to the body 1 by a prevention body attachment shaft 16, and the release 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 disengagement prevention body 15, and the cam surface 18 is configured to abut against and press against the engagement body 10 from above to restrict upward rotation of the engagement member 4 due to impact or load.
Further, when the release lever 11 is moved upward to release the striker 2, the disengagement prevention body 15 is also pulled by the release lever 11 and pivots upward to disengage from the upper surface of the engagement body 10. The guide hole 12 of the release lever 11 is formed with a slight margin in the moving direction of the release lever 11, and when the release lever 11 is moved upward, the disengagement prevention body 15 is immediately turned upward to be detached 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 detached to prevent the mechanical lock.
[0009]
Thus, a holding body 20 that holds the engaging member 4 at the initial standby position is provided at the lower position on the distal end side of the striker entry groove 3.
That is, the engagement member 4 is restrained from above by the disengagement prevention body 15 at the position where the striker 2 is engaged with the engagement groove (first-stage engagement groove 7), so that the striker 2 enters temporarily at this position. Even if the engaging member 4 comes into contact with the inclined guide surface 6 of the engaging member 4, the engaging member 4 cannot be rotated upward by the disengagement prevention body 15, so that the inclined guide surface 6 acts but is disengaged before the striker 2 enters. The prevention member 15 holds (standby) the engagement member 4 by the holding body 20 at a position where it does not act.
The holding body 20 is formed in a substantially L shape in side view, and an intermediate portion is attached to the body 1 by a mounting shaft 21, and one end 22 of the holding body 20 is engaged with a holding projection 25 provided on the side surface of the engaging member 4 from below. Between the holding position where the striker 2 engages with another engaging groove (second-stage engaging groove 8) and the retracted position located below the striker entry groove 3 when the striker 2 engages with another engaging groove (second-stage engaging 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 so as to exceed the so-called dead point so as to be located at either the retracted position or the holding position.
[0010]
When the striker 2 enters the striker entry groove 3, the holding body 20 is disengaged from the holding projection 25 by rotating the one end 22, and the engagement member 4 is rotated downward to be in the engagement position of the striker 2. In this state, it is stopped by the disengagement prevention body 15 and is not rotated by the movement of the striker 2. Further, when the engaging member 4 is rotated upward by the operating rod 13 and the striker 2 is removed from the striker entry groove 3, the holding body 20 is rotated by the other end 26 being pushed by the striker 2 that moves outward (detaches). When the operating rod 13 is returned to the original position, the holding protrusion 25 of the engaging member 4 is placed 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 holding body 20.
[0011]
Thus, a cover 30 is attached to the back side of the body 1, a mounting plate 31 is provided on the front side of the body 1, and the mounting plate 31 is attached to the side surface of the back seat 33 of the vehicle seat 32 provided on the vehicle body. The saddle seat 33 is pivotally attached to the seat seat 34. In the embodiment, the vehicle seat 32 is formed in the second and subsequent rows, and the inclination angle of the dorsal seat 33 is changed in two stages. 42 is a dorsal skeleton frame of the dorsal seat 33, and 43 is a fixing bracket for fixing to the vehicle body side.
[0012]
[Action]
In the above configuration, when the dorsal seat 33 in the forward-turned state is raised, the striker 2 enters the striker entry groove 3 of the body 1, and the striker 2 comes into contact with the inclined guide surface 6 of the engaging member 4, and the inclined guide surface 6 guides the engaging member 4 to rotate upward about the engaging member mounting shaft 5, and engages when the striker 2 passes through the inclined guide surface 6 and reaches below the first stage engaging groove 7. .
In this case, an engagement body 10 that protrudes to the front side is provided on the side surface of the engagement member 4, and a disengagement prevention body 15 that presses the engagement body 10 of the engagement member 4 from above is provided above the striker entry groove 3. Therefore, when the striker 2 is engaged with the first-stage engagement groove 7 of the engagement member 4, the disengagement prevention body 15 presses the engagement body 10 from above and engages even if there is a vertical vibration or impact. The upward rotation of the member 4 is prevented, and the locked state of the striker 2 and the engaging member 4 is maintained.
[0013]
Therefore, since the disengagement prevention body 15 is present, in the normal position, even if the striker 2 hits the inclined guide surface 6 of the engagement member 4, the engagement member 4 does not rotate upward, but the striker entry groove 3 A holding body 20 that holds the engaging member 4 in the initial standby position is provided at a lower position on the distal end side, and the holding projection 25 on the side surface of the engaging member 4 rests on the upper end of one end 22 of the holding body 20 to It is held at the standby position.
Therefore, when the dorsal seat 33 is erected, the engaging member 4 is engaged with the striker 2 only by erecting without any operation, and the operability is improved.
When the striker 2 enters the striker entry groove 3, the holding body 20 rotates and one end 22 is disengaged from the holding projection 25, and the engaging member 4 that has lost support thereby rotates downward to strike the striker 2. Is stopped by the disengagement prevention body 15 in this state, and is not rotated by the movement of the striker 2.
[0014]
Thus, another second-stage engagement groove 8 is formed on the engagement member mounting shaft 5 side of the first-stage engagement groove 7 of the engagement member 4, and the engagement body 10 of the engagement member 4 has other Since the end engages the guide hole 12 of the release lever 11 locked to an operation member such as an arbitrary sill knob, the guide hole of the release lever 11 is moved when the release lever 11 is moved upward by the operation rod 13. 12 pulls the engaging body 10 upward, whereby the engaging member 4 rotates upward about the engaging member mounting shaft 5, and the striker 2 is detached from the first stage engaging groove 7.
Next, in this state, when the dorsal seat 33 is tilted rearward, the striker 2 enters the deepest position of the striker entry groove 3, and the abutting surface at the back of the second stage engagement groove 8 of the engagement member 4. 9 and then the release lever 11 is released, the second-stage engagement groove 8 of the engagement member 4 engages the striker 2 and locks the dorsal seat 33 at the second-stage position. .
[0015]
In this case, the disengagement prevention body 15 is attached to the upper position of the engagement member 4 by the prevention body attachment shaft 16 parallel to the engagement member attachment shaft 5 of the engagement member 4 so that the rotational axis direction is parallel. Therefore, the rotation direction of the engagement member 4 coincides with the disengagement prevention body 15, and the restriction of the disengagement prevention body 15 is released by opening the release lever 11, and then the engagement member 4 is locked. Since the release operation is only the opening operation of the release lever 11, not only the operability is improved but also a rational configuration is obtained.
Further, the cam body 18 of the disengagement prevention body 15 is brought into contact with the engagement body 10, and the cam surface 18 is formed in a shape that keeps pressing the engagement body 10 when the engagement member 4 is rotated upward in the unlocking direction. However, since the disengagement prevention body 15 is formed so as to be separated from the engagement body 10 when it rotates in the restriction release direction, the release is surely released by the opening operation of the release lever 11.
[0016]
Further, as described above, since the guide hole 12 of the release lever 11 is formed with a slight margin in the movement direction of the release lever 11, when the release lever 11 is moved upward, the disengagement prevention body 15 first. Then, the engagement member 4 is unlocked to prevent it from being mechanically locked.
Accordingly, the spring 14 is provided between the operating rod 13 and the fixed portion (cover 30), and the spring 14 is always biased to move the operating rod 13 downward. 7, the engaging member 4 immediately turns in the locking direction and engages. When the striker 2 reaches the second-stage engaging groove 8, the engaging member 4 is engaged when the hand is released from the operating rod 13. When the striker 2 is engaged with the first-stage engagement groove 7 or the second-stage engagement groove 8, the disengagement prevention body 15 also moves down the release lever 11 by the elasticity of the spring 14 and contacts the engagement body 10. Touch.
[0017]
Thus, as described above, the engagement body 10 of the engagement member 4 is engaged with the guide hole 12 of the release lever 11 which is engaged with an operation member such as an arbitrary sill knob at the other end. When the lever 11 is moved upward by the operating rod 13, the guide hole 12 of the release lever 11 pulls the engaging body 10 upward, and thereby the engaging member 4 rotates upward about the engaging member mounting shaft 5. Thus, the striker 2 is detached from the first stage engaging groove 7.
In this state, when the dorsal seat 33 is tilted, the striker 2 comes out of the striker entry groove 3 of the body 1, and when the striker 2 comes out, the other end 26 of the holding body 20 is pushed and rotated, and one end 22 of the holding body 20 is rotated. Is positioned below the holding projection 25 on the side surface of the engaging member 4.
Next, when the hand is released from the operation member, the holding projection 25 on the side surface of the engagement member 4 is placed on the upper end of the one end 22 of the holding body 20 and held at the initial standby position.
[0018]
Then, the dorsal seat 33 is tilted in a position where the engaging member 4 is rotatable, and when it is raised as described above, the locking and unlocking are repeated.
Therefore, not only is the lock operation unnecessary when waking up from the lying upper body, but the engaging member 4 is automatically returned to the initial state and does not need the lock standby operation when it is lowered from the standing state.
[0019]
Thus, as described above, the engaging member 4 and the striker 2 are engaged and locked, and the engaging member 4 is retracted from the striker 2 to be unlocked. The one-step engagement groove 7 has a front inner peripheral surface 35 and a rear inner peripheral surface 36 positioned on the striker 2 side, but the lower end of the rear inner peripheral surface 36 is set lower than the lower end of the front inner peripheral surface 35. Since the striker 2 abuts against the inclined guide surface 6 and the striker 2 enters and passes the lower end of the front inner peripheral surface 35 while rotating the engagement member 4 upward, the striker 2 is formed. 2 always strikes the rear inner peripheral surface 36.
Accordingly, when the dorsal seat 33 is erected, not only is the locking operation unnecessary, but the back seat 33 is always engaged with the first stage engaging groove 7 of the first stage.
[0020]
Accordingly, the rear inner peripheral surface 36 of the first-stage engaging groove 7 is inclined linearly or in an arc shape so as to be rearward as it goes downward, and the front and rear of the front inner peripheral surface 35 and the rear inner peripheral surface 36 Since the width is so narrow that it extends upward, when the engaging member 4 rotates downward and the first-stage engaging groove 7 is engaged from above the striker 2, the striker 2 becomes the first-stage engaging groove. 7 is left in contact with both the front inner peripheral surface 35 and the rear inner peripheral surface 36 with a gap left therebetween. Therefore, rattling of the engaging member 4 in the locked state is prevented.
Thus, the lower part of the rear inner peripheral surface 36 of the first stage engaging groove 7 is formed on a receding surface 37 located on the back side of the lock position of the striker 2 in a side view. The lock position is ensured by taking time until the engagement member 4 is rotated downward from the lock position and locked by rotating downward.
[0021]
That is, when the striker 2 enters the striker entry groove 3 and hits the engagement member 4, the striker 2 tries to move forward by the reaction, so when the reaction is large, the striker 2 is located below the first-stage engagement groove 7. Although the striker 2 is not positioned at the same time, the striker 2 may be swung, but the striker 2 is once moved deeper than the lock position by the retreating surface 37 behind the predetermined lock position. The first step engagement groove 7 is engaged with the step engagement groove 7 below the step engagement groove 7. Therefore, it takes time until the engaging member 4 is rotated downward and locked by the retreating surface 37, and the locking is ensured.
Thus, the rear inner peripheral surface 36 is inclined in a straight line or an arc shape so as to be rearward as it goes downward, and the receding surface 37 that is a part of the rear inner peripheral surface 36 is located behind the predetermined lock position. The rear inner peripheral surface 36 is separated from the striker 2 when the engagement member 4 is rotated upward from the locked state with the striker 2 to the unlocked state. Accordingly, the striker 2 and the engaging member 4 are separated without changing the relative positions, so that the operation load is not increased during the unlocking operation.
[0022]
That is, when the rear inner peripheral surface 36 is inclined forward, the rear inner peripheral surface 36 is released while pushing the striker 2, so that it moves while pushing the back of the seated person. Therefore, the operation load increases accordingly, but this is solved.
Thus, the lower part of the rear inner peripheral surface 36 (retracted surface 37) is lower than the lower part of the front inner peripheral surface 40 of the second stage engaging groove 8, and the lower part of the rear inner peripheral surface 36 (retracted surface 37) Since the front inner peripheral surface 40 of the second stage engaging groove 8 is inclined so as to increase toward the rear side, even if the engaging member 4 vibrates up and down in a locked state due to an unexpected cause. The second stage engaging groove 8 does not come off from the first stage engaging groove 7. Further, when the striker 2 is disengaged from the second-stage engagement groove 8, the striker 2 is not engaged with the first-stage engagement groove 7, and the striker 2 is brought into a free state in one motion.
[0023]
【The invention's effect】
The present invention includes a striker 2 fixed on the vehicle body side, and an engagement member 4 in which a plurality of engagement grooves that are pivotally attached to the body 1 on the seat side and engage with the striker 2 are arranged in parallel in the length direction. The first-stage engagement groove 7 with which the striker 2 first engages among the engagement grooves of the engagement member 4 is a front inner peripheral surface 35 and a rear inner peripheral surface 36 located on the striker 2 side. And the striker 2 is formed on the rear inner peripheral surface 36. Therefore, the striker 2 is disposed on the rear inner peripheral surface 36. Since it always hits, it always engages with the engaging groove 7 of the first stage.
In the present invention, the rear inner peripheral surface 36 of the engagement groove is inclined in a straight line or an arc shape so as to be rearward as it goes downward, and the front and rear widths of the front inner peripheral surface 35 and the rear inner peripheral surface 36 are as follows. Since the seat lock device for a vehicle is formed so as to be narrow in the upward direction, the front inner peripheral surface 35 and the rear inner peripheral surface 36 are abutted and locked while leaving a clearance above the engagement groove. The engagement member 4 is prevented from rattling in the locked state.
According to the present invention, a part of the lower part of the rear inner peripheral surface 36 of the engagement groove is a rearward position located behind the engagement position of the striker 2 that locks the engagement member 4 and the engagement groove in a side view. Since the vehicle seat lock device is formed on the surface 37, the striker 2 enters once deeper than the original lock position to ensure the lock.
In the present invention, the lower part of the rear inner peripheral surface 36 of the first stage engaging groove 7 is formed on the back side of the first stage engaging groove 7 and the front inner peripheral surface 40 of the second stage engaging groove 8. The lower part of the rear inner peripheral surface 36 and the front inner peripheral surface 40 of the second-stage engaging groove 8 are inclined so as to increase toward the rear side. Therefore, even if the engaging member 4 vibrates up and down in the locked state due to an unexpected cause, it does not come off the first stage engaging groove 7 and engage with the second stage engaging groove 8.
In the present invention, an inclined guide surface 6 is formed at the tip of the engaging member 4 so that the striker 2 abuts to rotate the engaging member 4 upward, and the body 1 includes the engaging member 4. Since the vehicle seat locking device is provided with the holding body 20 that is held at the initial standby position where the inclined guide surface 6 acts, the holding body 20 and the inclined guide can be formed simply by raising the dorsal seat 33 in the forward-turned state. The engaging member 4 is engaged and locked with the striker 2 by the surface 6 to improve operability.
According to the present invention, the engagement member 4 is provided with an engagement body 10 that engages with a disengagement prevention body 15 pivotally attached to the body 1, and the holding body 20 is provided on the inclined guide surface 6 with the striker 2. Is held in the initial standby position for releasing the restriction of the disengagement prevention body 15 so that the engagement member 4 is pivoted upward, so that the holding body 20 is provided. Since the disengagement prevention body 15 is positioned at the non-operating position and the engagement member 4 is held so as to be positioned at the initial standby position, the engagement member 4 is surely rotated once and then locked. to be certain.
In 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 a mounting shaft 21, and one end 22 thereof is a retracted position located below the striker entry groove 3. , And is configured to be pivotally mounted at the center of the mounting shaft 21 between a holding position that enters the striker entering groove 3 and engages with a holding projection 25 provided on a side surface of the engaging member 4 from below. Since the vehicle seat lock device is configured as described above, the engagement member 4 can be held at the initial standby position and mechanically automated at the initial standby position with a simple configuration.
Since the body 1 and the striker 2 of the locking device only need to move relatively, the structure of the mounting position and the like is not limited by the expression. The body 1 of the locking device is on the vehicle body side, and the striker 2 is seated. The striker 2 and the body 1 of the locking device may be moved for convenience of explanation, but one is always provided on the fixed side and the other is on the moving side. Is provided.
[Brief description of the drawings]
FIG. 1 is an assembled perspective view of a locking device.
FIG. 2 is a partially omitted side view of the locking device in an initial standby state.
FIG. 3 is a partially omitted side view of the locking device in a state in which the striker comes into contact with an inclined surface and starts upward rotation.
FIG. 4 is a partially omitted side view of the locking device with the striker engaged.
FIG. 5 is a partially omitted side view of the locking device in an initial unlocking state.
FIG. 6 is a partially omitted side view of the locking device in a state where the striker has entered to the back.
FIG. 7 is a partially omitted side view of the locking device in a state where the striker is engaged in the second stage.
FIG. 8 is a schematic perspective view of the locking device.
FIG. 9 is a perspective view of a seat.
FIG. 10 is a perspective view showing an example of a frame for mounting a lock device.
FIG. 11 is a side view of the engaging member.
FIG. 12 is a side view of a state in which the striker is in contact with the receding surface.
FIG. 13 is a side view showing a state in which the striker enters the engagement groove.
FIG. 14 is a side view showing a state in which a striker is engaged with an engagement groove.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Body, 2 ... Striker, 3 ... Strike entrance groove, 4 ... Engagement member, 5 ... Engagement member attachment shaft, 6 ... Inclination guide surface, 7 ... First stage engagement groove, 8 ... Second stage engagement Groove, 9 ... Abutting surface, 10 ... Engagement body, 11 ... Release lever, 12 ... Guide hole, 13 ... Operation rod, 14 ... Spring, 15 ... Removal prevention body, 16 ... Prevention body mounting shaft, 17 ... Pin, 20 DESCRIPTION OF SYMBOLS ... Holding body, 21 ... Mounting shaft, 22 ... One end, 25 ... Holding protrusion, 26 ... Other end, 27 ... Spring, 30 ... Cover, 31 ... Mounting plate, 32 ... Vehicle seat, 33 ... Back seat, 34 ... seat seat, 35 ... front inner peripheral surface, 36 ... rear inner peripheral surface, 37 ... receding surface, 38 ... step, 40 ... front inner peripheral surface

Claims (5)

  A striker 2 fixed to the vehicle body side, and an engagement member 4 that is pivotally attached to the body 1 on the seat side and is engaged with the striker 2 in parallel with each other in the length direction. Of the engaging grooves of the engaging member 4, the first-stage engaging groove 7 that the striker 2 first engages is the engaging groove 7 of the engaging member 4 that the striker 2 engages. A front inner peripheral surface 35 positioned forward with respect to the side and a rear inner peripheral surface 36 positioned rearward with respect to the striker 2 side, the inner side of the rear side being lower than the lower end of the front inner peripheral surface 35 The engaging groove is located at the lower end of the peripheral surface 36, and a part of the lower part of the rear inner peripheral surface 36 of the engaging groove is a striker 2 and an engaging groove that lock the engaging member 4 in a side view. The vehicle seat lock apparatus formed in the retreating surface 37 located in the back | inner side rather than the engagement position.   2. The vehicle seat lock device according to claim 1, wherein the receding surface 37 is formed in an arc shape so as to be rearward as it extends downward. 3. The striker 2 fixed to the vehicle body side and the engagement member 4 pivotally attached to the body 1 on the seat side and engaged with the striker 2 according to claim 1 or 2 , wherein the striker 2 is The engaging groove 7 of the engaging member 4 to be engaged has a front inner peripheral surface 35 positioned forward with respect to the striker 2 side and a rear inner peripheral surface 36 positioned rearward with respect to the striker 2 side. The engaging groove has the lower end of the rear inner peripheral surface 36 positioned below the lower end of the front inner peripheral surface 35, and the striker 2 is in contact with the front end of the engaging member 4. The vehicle body 1 is provided with an inclined guide surface 6 for rotating the joint member 4 upward, and the body 1 is provided with a holding body 20 that is held at an initial standby position where the inclined guide surface 6 of the engaging member 4 acts. Seat lock device.   In Claim 3, the engagement member 4 is provided with an engagement body 10 that engages with a disengagement prevention body 15 pivotally attached to the body 1, and the holding body 20 is provided on the inclined guide surface 6 with the striker. A vehicle seat lock device configured to be held at an initial standby position in which the restriction of the disengagement prevention body 15 is released so that the engagement member 4 is pivoted upward by contact with the engagement member 4.   In Claim 3 or Claim 4, the said holding body 20 is formed in the side view substantially L shape, and the intermediate part is attached to the said body 1 with the attachment axis | shaft 21, The one end 22 is below the said striker approach groove | channel 3. Rotate about the mounting shaft 21 between the retracted position and the holding position where it enters the striker entry groove 3 and engages the holding projection 25 provided on the side surface of the engaging member 4 from below. A vehicle seat lock device configured to be freely movable.

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