JP3496403B2 - Locking device for opening / closing body of automobile - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for an opening / closing body of an automobile, and more particularly, to a locking device for an opening / closing body such as a trunk lid or a back door, which is provided with an idling function in response to an unlocking operation from the passenger compartment side. . In the following description, a trunk lock device will be described as an example.

[0002]

2. Description of the Related Art FIGS. 9 to 12 show a conventional trunk lock device having an idle function. Reference numeral 1 denotes a lock mechanism fixedly mounted on a trunk lid (not shown), and the lock mechanism 1 is a striker 10 described later. Lock base 2 fastened and fixed to the trunk lid with the entry slit 3, a latch 4 pivotally supported by the lock base 2 by a support shaft 5 to engage / disengage with the striker 10, and a lock base 2 A locking lever 6 that is rotatably supported by a support shaft 7 is engaged with and disengaged from the latch 4, and locks and unlocks the latch 4 and the striker 10, and a tension between the latch 4 and the upper end of the locking lever 6. It is provided with a spring 8 for biasing the turning force in a direction in which the latch 4 and the locking lever 6 are engaged with each other.

On the lower end of the locking lever 6, there is integrally formed a contactor 9 made of a resin material and protruding downward from the lower edge of the lock base 2.

A striker 10 is fastened and fixed to a trunk opening edge (not shown) through a striker base 11, and the striker 10 is integrally formed on an upper edge portion of an end surface 12 bent on a side edge of the striker base 11 so as to project. On the lower side of the end face 12, a bracket 13 for pivotally supporting a lock release lever 15, which will be described later, is bent at a substantially right angle.

Numeral 15 is rotatably supported by a support shaft 14 fixed to the side surface of the bracket 13, and a cable 16 anchored at the lower end is pulled at the cabin side to form an engagement member formed at the upper end. The contact piece 9 of the locking lever 6 is pushed by the joint piece 17 in the unlocking direction to release the engagement between the latch 4 and the locking lever 6 and unlock the latch 4 and the striker 10. The lock release lever 15 is a lever, which is axially supported by the support shaft 14 through a long hole 18 extending in the vertical direction, and is moved downward so that the engagement between the engagement piece 17 and the contactor 9 is lost. Position C
Is slidable to the uncancelled positions U and C where the engaging piece 17 and the contact 9 can be engaged with each other by being moved upward.

At the side edge of the lock release lever 15 near the striker base 11, the end surface 1 of the striker base 11 is located.
2, a stopper 19 is bent and formed, and the stopper 19 comes into contact with the end face 12 to lock release lever 1
The rotation of the initial position I of No. 5 is restricted.

The elongated hole 18 of the lock release lever 15 is formed so as to be substantially vertical at the initial position I of the lock release lever 15 in parallel with the end face 12 and the stopper 19, and at the initial position I, the aforementioned It is adapted to slide in the vertical direction substantially perpendicular to the cancel position C and the uncancel position U · C.

A set spring 20 for rotating and returning the lock release lever 15 to the initial position I is mounted across the striker base 11 and the lock release lever 15. The spring force of the set spring 20 causes the lock release lever 15 to move. The cancel position C and the uncancel position U · C are held, and as the set spring 20, a torsion coil spring that can reduce the installation occupied space is used.

The torsion coil spring 20 has a coil portion 2
0a is the front surface of the lock release lever 15 (front side of the plane of FIG. 9)
Side of the striker base 11 is loosely mounted, one end of which is locked to the upper edge of the base of the bracket 13 of the striker base 11, and the other end of which is bent substantially horizontally. It is inserted and locked in a spring locking hole 22 which is vertically formed in accordance with 18.

The end of the locking portion 21 is bent downward so as not to be disengaged from the spring locking hole 22 when the canceling position C of the lock releasing lever 15 is switched to the uncancel position U · C, and the lock releasing lever is bent. 15 is abutted on the rear surface side.

Further, a front wedge-shaped cam portion 23 is formed on a side edge of the spring engaging hole 22 to which the engaging portion 21 elastically contacts, and is engaged when the lock release lever 15 is in the cancel position C. The portion 21 is elastically contacted with the toe portion of the upper slope of the cam portion 23, and when in the uncanceled position U / C, the engaging portion 21 is elastically contacted with the toe portion of the lower slope of the cam portion 23, The cancel position C and the uncancel position U · C can be maintained.

On the other hand, at the lower edge of the bracket 13 of the striker base 11, when the lock release lever 15 is pulled up from the cancel position C to the uncancel position U · C,
A locking edge 24 that engages and holds the protruding end of the locking portion 21 of the torsion coil spring 20 and restricts its upward movement is formed by notching.

The contactor 9 formed integrally with the lower end of the locking lever 6 of the lock mechanism 1 is safe even if the operator's body interferes with the lower edge of the contactor 9 when the trunk lid is open. Therefore, the contact position P between the contact 9 and the engagement piece 17 of the lock release lever 15 is set to be wide as shown by L in FIG.
It is offset toward the engaging approach direction side of the engaging piece 17 with respect to the contactor 9 with respect to the support shaft 14 serving as the rotation supporting point.

[0014]

DISCLOSURE OF THE INVENTION Lock release lever 15
Since the vertical elongated hole 18 of the lock release lever 15 is formed to be substantially vertical at the initial position I of the lock release lever 15, the lock release lever 15 is in the uncancel position U / C, and the trunk lock release is performed. Therefore, when the cable 16 is pulled from the passenger compartment side and the lock release lever 15 is rotated in the lock release direction, the elongated hole 18 is tilted forward and the sliding contact with the support shaft 14 of the elongated hole 18 is illustrated. As shown in FIG. 12, with respect to the cable pulling force F in the horizontal direction, the component force Fx in the direction perpendicular to the side edge of the elongated hole 18 and the component force Fy in the downward direction perpendicular to this component force Fx come to work.

As shown in FIG. 12, the cable pulling force F becomes maximum at the lock releasing positions U and L where the upper side edges of the lock releasing lever 15 are close to the upper edge of the base of the striker base 11 where the bracket 13 is formed.

On the other hand, the closing reaction force of the trunk lid, that is,
The sealing reaction force of the trunk weather strip (not shown) attached to the opening edge of the trunk is set relatively high in order to secure the lock stability of the trunk lock and the sealing performance of the trunk weather strip. The rotation resistance in the unlocking direction is high, so
The above-mentioned cable pulling force for unlocking is relatively high.

Further, as described above, the contact position P between the contactor 9 at the lower end of the locking lever 6 and the engaging piece 17 of the lock release lever 15 is shown from the rotation fulcrum (support shaft 14) of the lock release lever 15. The engaging piece 17 with the offset amount indicated by L of 11
Is offset in the engagement approaching direction, and the lever length between the pivot fulcrum 14 of the lock release lever 15 and the contact position P is long, the cable pulling force F for releasing the lock is correspondingly increased. Will be even larger.

For this reason, as the cable pulling force F increases, the component force Fy acting downward on the lock releasing lever 15 at the lock releasing positions U and L also increases. Release lever 15
Is gradually displaced downward to engage the engaging piece 17 with the contactor 9.
Cannot be reliably engaged, that is, in the cancel state, and the lock cannot be released from the vehicle interior side.

In addition, the long hole 18 of the lock release lever 15
Since the lock release lever 15 is formed substantially vertically ,
When the trunk lid is abruptly closed in the state of being in the uncanceled position U / C, the inertial force causes frictional force around the support shaft 14 of the lock release lever 15 and the set spring 2.
If the position holding force due to 0 is exceeded, the lock release lever 15 may shift downward and similarly enter the cancel state.

On the other hand, if the lock release lever 15 is set to the cancel position C as shown in FIG. 9, the lock release lever 15 is also shown in FIG. 10 by the cable pulling operation (lock release operation) on the passenger compartment side. As described above, the locking lever 6 is idly actuated, so that the anti-theft property can be enhanced.

However, at the cancel position C, the cable 16 is pulled to the maximum on the passenger compartment side to unlock the lock release lever 15.
10, the upper portion of the side edge of the lock release lever 15 is pressed against the upper edge of the base portion of the bracket 13 of the striker base 11, as shown in FIG. The cable pulling force F acts diagonally upward on the sliding contact between the support shaft 18 and the support shaft 14, and the elongated hole 1 is formed in the sliding contact.
The component force Fx in the direction perpendicular to the side edge of 8 and the component force Fz in the upward direction at right angles to this component force Fx act to repeat the idling operation, whereby the unlocking lever 15 is caused by the force component Fz in the upward direction. May gradually shift upward and become uncancelled.

Therefore, according to the present invention, a malfunction of the unlocking lever from the cancel position to the cancel position and a malfunction from the cancel position to the cancel position do not occur, and the sense of quality and reliability can be further enhanced. A lock device for an opening / closing body of an automobile is provided.

[0023]

According to a first aspect of the present invention, a lock base is provided with a latch, and a locking lever is engaged and disengaged with the latch by mutually biasing rotational forces in a direction of engaging the latch. A lock mechanism that is rotatably provided, is fixed to the trunk lid, and a striker that is fixed to the opening edge of the trunk via a striker base and engages and disengages with the latch.
The support shaft fixed to the striker base is vertically moved to a cancel position where the engagement with the lower end of the locking lever is idle through a longitudinal long hole and an uncancel position where the lower end can be engaged. An unlocking device that is slidably supported and is rotated by a cable pulling operation from the vehicle interior side to engage with the lower end of the locking lever at the uncancel position and rotate in the unlocking direction. A lever, and a set spring that is mounted across the striker base and the lock release lever to return the lock release lever to the initial position, and the engagement between the lower end of the locking lever and the lock release lever. The engagement position is set to be offset from the rotation fulcrum of the lock release lever toward the engagement approach direction of the lock release lever with respect to the lower end of the locking lever. In the above, the longitudinal long hole of the lock release lever is substantially vertical at a position where the lock release lever is in the uncancel position and the lower end of the locking lever is pushed to the lock release position by the lock release lever. In addition, the traction force of the cable is provided with an inclined portion inclined at an angle such that the sliding contact with the support shaft of the elongated hole acts in a substantially horizontal direction.

According to a second aspect of the present invention, the elongated hole of the lock release lever according to the first aspect is formed straight, and the entire elongated hole is an inclined portion.

According to a third aspect of the present invention, the elongated hole of the lock releasing lever according to the first aspect is formed as an upper portion which is substantially vertical at the cancel position of the lock releasing lever and an inclined portion which is continuous with the upper portion. It is characterized in that it is formed in a substantially V shape on the front side with the lower side.

According to a fourth aspect of the present invention, the lock release lever according to the first to third aspects is provided with a stopper at its side edge for slidingly contacting the lower end portion of the end face of the striker base to regulate the rotation of the initial position. The stopper is formed so as to be inclined at substantially the same angle as the inclined portion of the elongated hole so as to be slidably contacted with the end surface of the striker base with an appropriate opening angle.

According to a fifth aspect of the present invention, in the set spring of the lock release lever according to the first to fourth aspects, the coil portion is loosely mounted on the support shaft fixed to the striker base, and one end is locked to the striker base. While using a torsion coil spring with the other end locked to the lock release lever,
The lock release lever is formed with a vertically long spring locking hole into which the bent locking portion is inserted and locked at the other end of the torsion coil spring, and a side edge of the spring locking hole with which the locking portion slides. Is formed with a front wedge-shaped cam part for holding the cancel position and the uncancel position of the lock release lever.On the other hand, the striker base has the upward movement of the protruding end of the locking part of the torsion coil spring. A locking edge for regulation is formed, and the locking edge is set at a position where the side edge does not overlap the side edge on the cam portion side of the spring locking hole at the cancel position and the uncancel position of the lock release lever. It is characterized by having done.

[0028]

According to the first aspect of the present invention, the elongated hole of the lock release lever becomes substantially vertical when the lock release lever is unlocked by the lock release lever in the unlocked position. Since the cable pulling force is provided with an inclined portion that is inclined at an angle such that the pulling force of the cable acts on the sliding contact with the support shaft of the elongated hole in a substantially horizontal direction, the sliding contact with the supporting shaft of the elongated hole is achieved at the time of unlocking operation. Does not generate a downward force component, and therefore, it is possible to prevent a malfunction in which the lock release lever shifts downward and enters a cancel state.

Even when the lock release lever is set in the cancel position and the lock release lever is idled, the lock release lever moves upward due to the presence of the slanted portion of the elongated hole, resulting in an uncancelled state. It is possible to prevent the malfunction.

According to claim 2, in addition to the effect of claim 1, the elongated hole of the lock release lever is formed straight ,
Since the entire long hole is formed as an inclined portion, the long hole can be easily formed, and even when the lock release lever is set to the cancel position and the lock release lever is idly operated, the long hole is not formed. It becomes almost vertical, and the cable pulling force acts on the sliding contact with the support shaft of the long hole in a substantially horizontal direction, so that upward component force is not generated at the sliding contact, and the unlocking lever moves upward. Can be reliably prevented.

According to the third aspect, in addition to the effect of the first aspect, the elongated hole of the lock release lever is formed in a substantially V shape on the front side, and the upper portion thereof is substantially vertical at the cancel position. Therefore, when the lock release lever is switched from the cancel position to the uncancel position, the lock release lever can be moved almost vertically to the middle and the operation can be smoothly performed.

Further, when the lock release lever is switched from the uncancel position to the cancel position, the slidable contact of the elongated hole with respect to the support shaft is switched from the lower inclined part to the substantially vertical upper part to eliminate slack. The rotation operation of the lock release lever due to the pulling force that acts on the cable in which the drawer is in the fixed state can be reduced, and the switching operation from the uncancelled position to the canceled position does not feel uncomfortable.

According to the fourth aspect, in addition to the effects of the first to third aspects, when the lock release lever is pushed down from the uncancelled position to the cancel position, the stopper does not stick to the end face and the stopper can move to the end face. It is possible to smoothly perform the switching operation from the uncancelled position to the canceled position by making a line contact with the lower edge and sliding so as to wrap around the lower edge.

According to the fifth aspect, in addition to the effects of the first to fourth aspects, the engagement of the cam portion of the elongated hole of the lock release lever and the engagement portion of the torsion coil spring causes the lock release lever to move. Not only can the cancel position and the uncancel position be reliably held, but at these cancel and uncancel positions, the locking coil end of the torsion coil spring does not interfere with the side edge of the locking edge of the striker base and is always locked. Since the spring force can be applied to the release lever, rattling of the lock release lever can be prevented.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings, in which the same parts as those of the conventional structure are designated by the same reference numerals, taking a trunk lock device as an example.

1 to 4, reference numeral 1 denotes a lock mechanism fixedly mounted on a trunk lid (not shown). The lock base 2 is provided with a striker entry slit 3 and is fastened and fixed to the trunk lid. A latch 4 pivotally supported rotatably and engaged with and disengaged from the striker 10, and a lock base 2 pivotally rotatably supported by a support shaft 7 and disengaged from the latch 4, locking the latch 4 and the striker 10. A locking lever 6 for unlocking, and a spring 8 stretched between the latch 4 and the upper end portion of the locking lever 6 for urging a turning force in a direction in which the latch 4 and the locking lever 6 are engaged with each other. Is equipped with.

On the lower end of the locking lever 6, there is integrally formed a contactor 9 made of a resin material and protruding downward from the lower edge of the lock base 2.

The contactor 9 is formed wide so that the lower edge of the contactor 9 may be interfered with by the operator's body when the trunk lid is open. The contact position P of the lock release lever 15 with the engagement piece 17 is larger than that of the support shaft 14, which is the pivotal fulcrum of the lock release lever 15, as shown by L in FIG. It is offset to the engaging approach direction side of 17.

The striker 10 is formed by projecting on the upper edge portion of the end surface 12 of the side edge of the striker base 11 fastened and fixed to the trunk opening edge (not shown), and on the lower side portion of the end surface 12 is a lock release lever described later. Bracket 13 that supports 15
Is bent at a substantially right angle.

The lock release lever 15 is the bracket 1
3 is rotatably supported by a support shaft 14 fixed to a side surface of the cable 3, and a cable 16 anchored at the lower end is pulled by an engaging piece 17 formed at the upper end by pulling the cable 16 from the passenger compartment side. The contactor 9 of the lever 6 is pushed in the unlocking direction to disengage the latch 4 from the locking lever 6,
The latch 4 and the striker 10 are unlocked.

The lock release lever 15 is axially supported by the support shaft 14 through a longitudinal elongated hole 18 and is moved downward so that the engagement between the engagement piece 17 and the contact 9 is lost. It is slidable between a cancel position C and an uncancel position U / C which is moved upward so that the engagement piece 17 and the contact 9 can be engaged with each other.

At the side edge of the lock release lever 15 near the striker base 11, the end surface 1 of the striker base 11 is located.
A stopper 19 which is in contact with the lower end of the second lock member 2 to regulate the rotation of the initial position I of the lock release lever 15 is formed by bending.

Set the lock release lever 15 to the initial position I.
In the torsion coil spring 20 as a set spring for rotating and returning to the direction, the coil portion 20a is loosely mounted on the support shaft 14 on the front side (front side of FIG. 1) of the lock release lever 15,
One end is locked to the upper edge of the base portion of the bracket 13 of the striker base 11, while the other end is bent substantially horizontally to form a locking portion 21 on the lock release lever 15 in the long hole 18
It is inserted and locked in a spring locking hole 22 which is vertically long in accordance with the above.

The end of the locking portion 21 is the unlock lever 1
5 is bent downward so as not to be disengaged from the spring locking hole 22 at the time of the switching operation between the cancel position C and the uncancel position U · C, and is brought into contact with the rear surface side of the lock release lever 15.

A front wedge-shaped cam portion 23 is formed on a side edge of the spring locking hole 22 to which the locking portion 21 elastically contacts, and when the lock release lever 15 is in the cancel position C, the locking portion 21 is formed. Is elastically contacted with the toe of the upper slope of the cam portion 23, and when in the cancel position U / C, the engaging portion 21 is elastically contacted with the toe of the lower slope of the cam portion 23 to cancel these. Position C and Uncanceled Position U
C and C can be maintained.

When the lock release lever 15 is pulled up from the cancel position C to the uncancel position U • C, the protruding end of the engaging portion 21 of the torsion coil spring 20 is engaged with the lower edge of the bracket 13 of the striker base 11. Hold,
A locking edge 24 for restricting its upward movement is cut out.

Although the basic structure described above is the same as that of the conventional structure described above, in this embodiment, the longitudinal elongated hole 18 of the lock release lever 15 uncancels the lock release lever 15. At the positions U and C, the lock release lever 15 pushes the lower end of the locking lever 6 to the lock release positions U and L, and the pulling force of the cable 16 is substantially vertical. The sliding contact with 14 is provided with an inclined portion 18a inclined at an angle so as to act in a substantially horizontal direction.

In particular, in the present embodiment, the elongated hole 18 is formed straight at the above-described angle, and the entire elongated hole 18 serves as the inclined portion 18a.

Further, the stopper 19 for restricting the rotation of the initial position I of the lock release lever 15 has an appropriate opening angle upward with respect to the lower side portion of the end surface 12 of the striker base 11, and is, for example, a long hole 18. The lock release lever 15 is formed to be slanted so as to be in sliding contact at substantially the same angle.
As shown in FIG. 1, the stopper 19 does not stick to the end surface 12 when the stopper 19 is pushed down from the uncancelled position U · C to the cancel position C, and the stopper 19 is pushed to the end surface 12 as shown in FIG.
The lower edge is line-contacted and slid so as to wrap around the lower edge so that the switching operation from the uncancelled positions U and C to the canceled position C can be smoothly performed.

Further, the notch edge 24 formed on the lower edge of the bracket 13 pivotally supporting the lock release lever 15 has its side edge 24 a spring-locked at the cancel position C and the uncancel position U · C of the lock release lever 15. Hole 22
It is formed close to the base side of the bracket 13 so as not to overlap the side edge of the cam portion 23 side.

According to the structure of the above embodiment, the lock release lever 15 is set to the uncanceled positions U and C, and the lock release operation is performed by the pulling operation of the cable 16 from the passenger compartment side. When the locking element 6 is pushed to rotate the locking lever 6 to the lock release positions U and L as shown in FIG. 4, the elongated hole 18 having the entire lock release lever 15 as the inclined portion 18a is substantially vertical. Becomes

Therefore, the cable pulling force F acts on the sliding contact of the elongated hole 18 with the support shaft 14 in a substantially horizontal direction, and a downward component force is generated at the sliding contact of the elongated hole 18 with the support shaft 14. As a result, it is possible to surely prevent the erroneous operation in which the lock release lever 15 shifts downward and enters the cancel state.

In particular, in this embodiment, the elongated hole 18 of the lock release lever 15 is formed straight and the elongated hole 18 is formed.
Since the whole is an inclined portion 18a, the elongated hole 18 can be easily formed, and the lock release lever 15 is locked in the state where the lock release lever 18 is in the cancel position C as shown in FIG. Even when the idling operation is performed in the releasing direction, the elongated hole 18 becomes substantially vertical, and the cable traction force F acts substantially horizontally at the sliding contact with the support shaft 14 of the elongated hole 18, and the upward sliding force is applied to the sliding contact. Since no force is generated, even if the lock release lever 15 is repeatedly idled, it is possible to reliably prevent the lock release lever 15 from erroneously moving upward and entering an uncancelled state.

The stopper 19 for restricting the rotation of the initial position I of the lock release lever 15 is substantially the same as the elongated hole 18 (inclined portion 18a) with an appropriate opening angle upward with respect to the end surface 12 of the striker base 11. Since the lock release lever 15 is formed to be inclined at an angle, when the lock release lever 15 is pushed down from the uncancelled position U · C shown by the chain line in FIG. 1 to the cancel position C shown by the solid line in FIG. It is possible to smoothly perform the switching operation from the uncancelled position U / C to the canceled position C by making line contact with the lower edge of the end face 12 and sliding around the lower side without sticking. it can.

Further, the side edge 24 a of the locking edge 24 formed on the lower edge of the bracket 13 of the striker base 11 is formed close to the base side of the bracket 13 to form the cancel position C of the lock release lever 15 and At the cancel position U / C, the side edge 24a has the spring locking hole 2
Since it does not overlap the side edge of the cam portion 23 of the second cam portion 23, the engaging portion 2 of the cam portion 23 and the torsion coil spring 20 is provided.
By engaging with the lock release lever 15, the cancel position C and the uncancel position U · C can be reliably held, and the engagement of the torsion coil spring 20 at the cancel position C and the uncancel position U · C can be achieved. Since the end of the stop portion 21 does not interfere with the side edge 24a of the locking edge 24 and the spring force can be constantly applied to the unlock lever 15, the uncancelled positions U and C, as shown in FIG.
As shown by the solid line, even when the stopper 19 is set to the cancel position C where it slidably contacts the lower edge of the end face 12, the stopper 19 is pressed against the lower edge of the end face 12 and the lock release lever 15 rattles. It does not occur, and the quality and reliability can be improved.

5 to 8 show the long hole 1 of the lock release lever 15.
9 shows eight different embodiments.

In this embodiment, the elongated hole 18 of the lock release lever 15 is connected to the upper part 18b which is substantially vertical at the cancel position C of the lock release lever 15 and the upper part 18b. The lower portion formed as the portion 18a is formed in a substantially V shape on the front.

Therefore, according to the structure of this embodiment, when the lock release lever 15 is switched from the cancel position C shown by the solid line in FIG. 5 to the uncancel position U · C shown by the chain line in FIG. Since the upper portion 18b of the hole 18 is substantially vertical, it can be moved almost vertically to the middle, and the switching operation can be smoothly performed.

When the unlocking lever 15 is switched from the uncancelled position U · C to the canceled position C, the slidable contact of the elongated hole 18 with respect to the support shaft 14 is the lower inclined portion 1.
By switching from 8a to the substantially vertical upper part 18b,
Cable 1 with slack and drawer fixed
It is possible to reduce the rotation operation of the lock release lever 15 due to the pulling force that acts on 6 in reverse, and the switching operation from the uncancelled positions U and C to the canceled position C does not feel uncomfortable.

On the other hand, in addition to the effect of the operability in the switching operation between the cancel position C and the uncancel position U / C of the lock release lever 15, the lock release lever 15 is set to the uncancel position U / C. When the lock release lever 15 is unlocked by pulling the cable 16, the inclined portion 18a below the elongated hole 18
Is slidably engaged with the support shaft 14, the inclined portion 18a is in the unlocked position U / L as in the case of the above embodiment.
As shown in FIG.
The cable pulling force F does not act on the sliding contact with the substantially horizontal direction, and the downward component force is not generated. Therefore, it is sure that the lock release lever 15 shifts downward and malfunctions to the cancel position C. Can be prevented.

On the contrary, when the lock release lever 15 is idled in the lock release direction with the lock release lever 15 in the cancel position C as shown in FIG. Since the upper portion 18b of the upper portion of the upper portion 18b is slidably engaged with the support shaft 14, the sliding contact with the support shaft 14 of the upper portion 18b is the same as in the conventional structure shown in FIG. Although the component force Fz of F acts diagonally upward and the lock release lever 15 tends to move upward, the upper portion 18b of the long hole 18 and the inclined portion 18a are connected in a substantially V shape in front. The elongated hole 18 is hooked on the support shaft 14 at the bent portion to prevent the upward movement of the lock. Therefore, even if the lock release lever 15 is repeatedly idled, the lock release lever 15 moves upward to cause an uncancelled state. Malfunction It can be reliably prevented.

[Brief description of drawings]

FIG. 1 is a front view showing a first embodiment of the present invention.

FIG. 2 is a front view showing the idling operation state of the embodiment.

FIG. 3 is a front view showing an initial state of an unlocking operation of the embodiment.

FIG. 4 is a front view showing the unlocking operation state of the embodiment.

FIG. 5 is a front view showing a second embodiment of the present invention.

FIG. 6 is a front view similar to FIG. 2 of the same embodiment.

FIG. 7 is a front view similar to FIG. 3 of the same embodiment.

FIG. 8 is a front view similar to FIG. 4 of the same embodiment.

FIG. 9 is a front view showing a conventional structure.

10 is a front view similar to FIG. 2 of the same structure.

FIG. 11 is a front view similar to FIG. 3 of the same structure.

FIG. 12 is a front view similar to FIG. 4 of the same structure.

[Explanation of symbols]

1 Lock mechanism 2 lock base 4 latch 6 locking lever 9 Lower end 10 strikers 11 striker base 12 end faces 14 spindle 15 Lock release lever 16 cables 18 long holes 18a inclined part 18b Upper part 19 stopper 20 set spring 21 Locking part 22 Spring locking hole 23 Cam section 24 Locking edge 24a side edge C Cancel position UC uncancelled position I Initial position P engagement position UL lock release position F cable traction force

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-7-26813 (JP, A) JP-A-59-38471 (JP, A) JP-A-62-170684 (JP, A) JP-A 64-- 14483 (JP, A) Actual development 57-196759 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E05B 65/12-65/42

Claims (5)

(57) [Claims] 1. A boot lid is rotatably provided with a latch on a lock base and a locking lever which is engaged with and disengages from the latch when rotational forces are urged in a direction to engage with the latch. Lock mechanism, a striker fixed to the opening edge of the trunk via a striker base to engage and disengage with the latch, and a lower end of the locking lever through a longitudinal hole in a support shaft fixed to the striker base. Is vertically slidably supported between a cancel position where the engagement with the vehicle portion is idle and an uncancel position where the lower end portion is engageable, and is rotated by a cable pulling operation from the vehicle interior side to and unlocking lever to pivot engages the lower end of the locking lever in the unlocking direction by Anne cancellation <br/> Le positions, is mounted across the striker base and the lock release lever, b A set spring for rotating and returning the lock release lever to the initial position, and the engagement position between the lower end of the locking lever and the lock release lever is set to a position closer to the locking lever than the rotation fulcrum of the lock release lever. In the structure in which the lock release lever is offset toward the engagement approaching direction with respect to the lower end portion, the longitudinal long hole of the lock release lever has the lock release lever in the uncancelled position and is locked by the lock release lever. When the lower end of the lever is pushed to the unlocked position, it becomes almost vertical, and the inclined part is inclined at an angle so that the pulling force of the cable acts on the sliding contact with the support shaft of the elongated hole in a substantially horizontal direction. A lock device for an opening / closing body of an automobile, which is characterized by being provided. 2. A lock device for an opening / closing body of an automobile according to claim 1, wherein the elongated hole of the lock release lever is formed straight, and the entire elongated hole is an inclined portion. 3. A front substantially doglegged shape with an upper part of the elongated hole of the lock release lever which is substantially vertical at the cancel position of the lock release lever and a lower part which is formed as an inclined part connected to the upper part. The lock device for an opening / closing body of an automobile according to claim 1, wherein 4. The lock release lever is provided with a stopper at its side edge for slidingly contacting a lower end portion of an end surface of the striker base to restrict rotation of an initial position, and the stopper is directed upward with respect to the end surface of the striker base. The lock device for an opening / closing body of an automobile according to any one of claims 1 to 3, wherein the locking device is formed so as to be slid at an appropriate opening angle so as to be slanted at substantially the same angle as the slanted portion of the elongated hole. 5. The set spring of the lock release lever is a torsion coil in which a coil portion is loosely mounted on a support shaft fixed to a striker base, one end of which is locked to the striker base and the other end of which is locked to the lock release lever. While a spring is used, the lock release lever is formed with a vertically long spring locking hole into which the bent locking portion is inserted and locked at the other end of the torsion coil spring, and the spring locking hole is A front wedge-shaped cam portion is formed on the side edge of the locking portion that is in sliding contact with the lock release lever to hold the cancel position and the uncancel position, while the striker base locks the torsion coil spring. A locking edge for restricting upward movement of the projecting end of the lock portion is formed, and the locking edge has a side edge formed by a spring at the cancel position and the uncancel position of the lock release lever. The lock device for an opening / closing body of an automobile according to any one of claims 1 to 4, wherein the locking hole is set at a position which does not overlap with a side edge of the locking portion on the cam portion side.