JPH06522Y2 - Lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a locking device used for locking a back door of an automobile or the like, and more specifically, the insertion groove of the striker is gradually reduced in the entering direction of the striker. As described above, a rattling stop block having an inclined contact surface inclined to the entering direction of the striker is provided, and when the locker is locked, the striker that enters the insertion groove and the vertical pillar engaging portion engages with the latch is locked. The present invention relates to a lock device that is configured to be pressed by using a block so as to remove play between a striker and a lock device body.

(Prior Art) A conventional locking device of this type is shown in FIG. In the figure, reference numeral 1 denotes a base plate of a lock device main body provided on the back door side. The base plate 1 is provided with a striker insertion groove 1a. It is rotatably arranged by using the pin 5 and the pin 5. The latch 2 is provided with a pin 6 projecting toward the base plate 1. The pin 6 is loosely fitted in the arc-shaped elongated hole 1b provided on the base plate 1 to regulate the rotation of the latch 2. . Reference numeral 7 denotes a torsion spring, one end 7a of which is locked to the pin 6 and the other end 7b of which is locked to the base plate 1 to apply a rotational biasing force to the latch 2 in the clockwise direction in FIG. Reference numeral 8 is also a torsion spring, one end 8a of which is locked to the back portion 3a of the pole 6 and the other end 8b of which is locked to the base plate 1 to apply a rotational biasing force to the pole 3 in the counterclockwise direction in FIG. In addition, latch 2
Is a striker guide groove 2a engaged with a striker 9 provided on the vehicle body side, a meshing portion 2b meshing with a claw portion 3b provided on the pole 3 at the time of locking shown in FIG. 3, and a claw portion 3b at the time of unlocking. Has an abutting portion 2c that abuts.
Reference numeral 1c is a holding chamber for receiving and holding the striker 9 that enters along the striker insertion groove 1a. The striker 9 has a substantially U shape as shown in FIG. 4, has a circular cross-sectional shape, and bridges the engaging vertical column 9a, the vertical column 9b, the engaging vertical column 9a, and the vertical column 9b. And a portion 9c. A slide pin 10 is provided in the holding chamber 1c in the striker insertion groove direction, and a slide block 11 is fitted into the slide pin 10 so as to be movable in the longitudinal direction of the slide pin 10. The spring 12 makes contact with the engaging vertical column portion 9a of the striker 9 engaged with the latch 2 at the time of locking, and further presses it to remove the play between the striker 9 and the lock device main body.

(Problems to be Solved by the Invention) In the conventional locking device having the above-described configuration, the pressing portion of the slide block 11 against the engagement vertical column portion 9a of the striker 9 has a circular sectional shape of the engagement vertical column portion 9a. There is a line contact in the axial direction of the engagement column. Therefore, the back door on which the lock device main body is provided is rotatable around the line contact portion as a central axis, and the back door is laterally moved while the vehicle is traveling due to the play between the striker 9 and the lock device main body. There was a problem of swinging.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lock device which can eliminate the looseness between the striker and the lock device main body and which has a simple structure and is inexpensive.

(Means for Solving Problems) The present invention for solving the above problems is inclined with respect to the entering direction of the striker so that the insertion groove of the substantially U-shaped striker is gradually reduced with respect to the entering direction of the striker. A rattling stop block having an inclined contact surface is provided, and at the time of locking, the striker that enters the insertion groove and the vertical column engaging portion engages with the latch is pressed by using the rattling stop block, In a locking device configured to play back with the locking device main body, the locking device main body is such that the width thereof gradually increases with respect to the entering direction of the striker, with respect to the striker. The side outer surface on the side of the backlash prevention block is formed with an inclined contact surface. With respect to the direction, using one having a recumbent contact portion inclined at substantially the same angle as the inclined contact surface of the rattling stop block, the rattling stop block is fixed to the lock device main body, and when locking, An inclined contact surface is used that is in contact with the recumbent contact portion of the striker in the axial direction of the recumbent contact portion, and further, the striker side has elasticity that contacts the inclined contact surface of the lock device body when locking. It is characterized in that a contact member made of a body is arranged.

(Operation) In the lock device of the present invention, the slanted contact surface of the backlash stop block and the slanted contact surface of the lock device body form the contact surface of the wedge-shaped convex portion, and are substantially the same as the slanted contact surface of the backlash stop block. The recumbent abutting portion and the abutting member of the striker inclined by an angle form a wedge-shaped concave portion for receiving the wedge-shaped convex portion. Then, in the locked state in which the wedge-shaped convex portion and the wedge-shaped concave portion are fitted, the lock device body is reliably pressed by the elastic force generated by the elastic deformation of the contact member. That is, at the time of locking, the reclining contact portion of the striker abuts the inclined contact surface of the backlash stop block, and the striker-side abutting member abuts the inclined contact surface of the lock device body.

(Embodiment) Next, an embodiment of the present invention will be described with reference to FIGS. 1 and 2. Incidentally, the same parts as those of FIGS. 3 and 4 showing the conventional example are designated by the same reference numerals, and the description thereof will be omitted. In this embodiment, a hard plastic backlash block 13 is fixed to one side of the striker insertion groove 1a so as to gradually reduce the width of the insertion groove 1a with respect to the entering direction of the striker 15. Further, the outer side surface of the lock device main body on the side of the backlash stop block 13 is an inclined contact surface 14 so that the width of the lock device main body gradually increases in the entering direction of the striker 15. The striker 15 has a circular cross-sectional shape, is bent in a substantially U-shape, and engages the latch 2 with the upright pillar engaging portion 15a, the upright pillar portion 15b, and the upright pillar engaging portion 15a.
Also, the vertical pillar portion 15b is bridged to form a reclining contact portion 15c capable of contacting the inclined contact surface of the play preventing block 13 when locking. The recumbent abutment portion 15c is inclined with respect to the approach direction of the striker 15 by substantially the same angle as the slanted contact surface of the backlash stop block 13, and the recumbent abutment portion 15c extends in the axial direction of the backlash stop block 13. It is possible to contact the inclined contact surface. Further, in this embodiment, the contact portion of the recumbent contact portion 15c with the play preventing block 13 is the contact flat surface 15d. Also, on the striker 15 side,
An abutting member 16 made of an elastic body is provided on the inclined contact surface 14 of the lock device body so as to come into contact with the inclined contact surface 14 during locking.

In the above embodiment, when the back door or the like is closed and the lock device body is moved to the striker 15 side, the striker 1
The backlash contact block 15 of the lock device body abuts on the recumbent abutment portion 15c of FIG.

According to the above configuration, the inclined contact surface of the backlash stop block 13 and the inclined contact surface 14 of the lock device body form a contact surface of the wedge-shaped convex portion, and the recumbent contact portion 15c of the striker 15 is formed.
The contact member 16 and the abutment member 16 form a wedge-shaped concave portion that receives the wedge-shaped convex portion. Then, in a state where the wedge-shaped convex portion and the concave portion are fitted together, the locking device main body is brought into contact with the recumbent contact portion 15c of the striker 15 by the elastic force generated by the elastic deformation of the contact member 16. The contact member 16 securely presses. In this fitted state, the reclining contact portion 15c of the striker 15 and the backlash stop block 13 are in contact with each other to prevent clockwise rotation of the lock device body (back door) in FIG. Due to the contact between the contact member 16 and the inclined contact surface 14 of the lock device body, counterclockwise rotation of the lock device body (back door) in FIG. 1 is prohibited. Therefore, the play between the striker 15 and the lock device main body can be eliminated, and the lateral shake of the back door while the vehicle is traveling can be prevented.

Moreover, in the above configuration, the contact surface of the wedge-shaped convex portion is formed on the inclined contact surface of the backlash stop block 13 and the inclined contact surface 14 of the lock device main body, and the recumbent contact portion 15c of the striker 15 and the contact member 16 are formed. In addition, since the wedge-shaped concave portion that receives the wedge-shaped convex portion is formed, the striker 15 also has the function of the wedge-shaped concave portion, so that the structure is simple and inexpensive. Further, since an elastic body is used as the contact member 16 and the elastic force generated by the elastic deformation of the contact member 16 presses the lock device body securely, the structure of that part is simple and inexpensive. is there. Further, since the lateral load of the back door is received by the surface, wear of the rattling prevention block 13 is small.

The present invention is not limited to the above embodiment. For example,
The cross-sectional shape of the striker 15 is not limited to the circular shape.

(Effect of the Invention) As described above, in the present invention, the contact surface of the wedge-shaped convex portion is formed on the inclined contact surface of the backlash stop block and the inclined contact surface of the lock device main body, and the recumbent contact portion of the striker is formed. Since the wedge-shaped concave portion that receives the wedge-shaped convex portion is formed in the abutment member and the wedge-shaped concave portion and the wedge-shaped concave portion are pressed and fitted to each other, the play can be basically reduced.
Moreover, since the striker also functions as a wedge-shaped recess, the structure is simple and the cost is low. Further, since the elastic member is used as the abutting member and the elastic force generated by elastically deforming the abutting member is used to reliably hold down the lock device main body, the structure of that portion is also simplified. It will be cheaper. That is, according to the present invention, it is possible to eliminate the rattling between the striker and the lock device main body, and to realize an inexpensive lock device having a simple structure.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG.
3 is a perspective view of the striker in the figure, FIG. 3 is a configuration diagram showing a conventional example, and FIG. 4 is a perspective view of the striker in FIG. DESCRIPTION OF SYMBOLS 1 ... Base plate 1a ... Striker insertion groove 1b ... Long hole 1c ... Striker holding chamber 2 ... Latch 2a ... Striker guide groove 2b ... Engagement part 2c, 15c ... Abutment part 3 ... Pole 3a ... Back part 3b ... Claw part 4, 5 , 6 ... pin 7, 8 ... torsion spring 7a, 8a ... one end 7b, 8b ... other end 9, 15 ... striker 9a, 15a ... engaging vertical pillar portion 9b, 15b ... vertical pillar portion 9c ... bridge portion 10 ... slide pin 11 ... Slide block 12 ... Spring 13 ... Backlash blocking block 14 ... Inclined contact surface 15c ... Landing contact portion 15d ... Abutting plane 16 ... Abutting member

Claims (1)

[Scope of utility model registration request] 1. A rattling stop block having an inclined contact surface inclined with respect to the entering direction of the striker so as to gradually reduce the insertion groove of the substantially U-shaped striker with respect to the entering direction of the striker. The striker, which has entered the insertion groove and the vertical column engaging portion of which is engaged with the latch, is pressed by using the rattling stop block, and the rattling between the striker and the lock device main body is taken. In the locking device, as the locking device main body, a side outer surface of the locking device main body on the rattling stop block side with respect to the striker is formed as an inclined contact surface so that the width thereof gradually increases in the entering direction of the striker. As the striker, an inclined contact surface of the rattling stop block with respect to the entering direction of the striker is used. The one having a recumbent contact portion inclined by substantially the same angle is used, and the rattling stop block is fixed to the lock device main body, and when locked, the inclined contact surface thereof is the recumbent contact portion of the striker. The abutting portion is used for abutting in the axial direction, and further, on the side of the striker, an abutting member made of an elastic body that abuts against the inclined contact surface of the lock device main body when locking is arranged. Locking device.