JP2000054706A - Locking device for vehicle bonnet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To silence the sound of closure of a bonnet. SOLUTION: A striker engagement groove 2 for a striker 10 fitted to a bonnet is formed at the middle position between the right and the left of a base plate 1 made of metal and a latch 3 which rotates in engagement with the striker 10 at the time of closure is fitted axially on either the right or left side of the striker engagement groove 2, while a ratchet 4 being fitted elastically with the latch 3 and preventing reverse rotation of the latch 3 is fitted axially on the other side of the groove. The base plate 1 is provided with a half latch body 14 which prevents a bonnet from opening directly even when the ratchet 4 in the state of closure is separated from the latch 3. In this case, a part of the half latch body 14 is formed to be a steep slope wall 18, which is made to face the striker engagement groove 2 so that it projects thereinto. When closure is made, the striker 10 slides in friction on the slope wall 18, the half latch body 14 is made to rotate and a half latch engagement pawl 16 is displaced to a working position where it closes up the striker engagement groove 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bonnet locking device.

[0002]

2. Description of the Related Art Conventionally, a locking device for a vehicle bonnet has a striker engaging groove C of a striker B attached to a bonnet formed at a left and right intermediate position of a metal base plate A. One of the latches D rotates when the striker B is engaged when the door is closed.
A ratchet E for preventing reverse rotation of the shaft is attached to each shaft, and a half latch body F is provided on the base plate A so that the hood does not directly open even if the ratchet E in the closed state is released from the latch D. It is. G is a half latch engaging claw.

[0003]

In FIG. 1, when the hood is closed, the striker B fixed to the hood collides with the half-latch engaging claw G of the half-latch body F, and the half-latch shown in FIG. The latch body F is opened and the door is closed as shown in FIG. At this time, a considerably loud collision sound is emitted. This collision sound becomes smaller when the angle of the inclined portion H of the half-latch engaging claw G is made steeper. However, since the angle of the inclined portion H cannot be made steeper than the limit, a known one makes a considerably loud noise. .

[0004]

Therefore, according to the present invention, a striker engaging groove 2 of a striker 10 attached to a bonnet is formed at an intermediate position between the left and right of a metal base plate 1, and the left and right of the striker engaging groove 2 are formed. When one of the latches 3 is closed, the striker 10 engages and rotates when the door is closed.
A ratchet 4 which is elastically attached to the latch 3 to prevent reverse rotation of the latch 3 is attached to one of the other, and the ratchet 4 in a closed state is detached from the latch 3 on the base plate 1. The bonnet is provided with a half latch body 14 for preventing the door from directly opening.
A part of the half latch body 14 has a steeply inclined wall 18.
When the door is closed, the striker 10 rubs against the inclined wall 18 so that the half latch body 14 rotates, and the half latch body 14 rotates. The latch engaging claw 16 is a locking device for a vehicle hood that is displaced to a position where the striker engaging groove 2 is closed. Further, a striker engaging groove 2 of a striker 10 attached to a bonnet is formed at a left and right intermediate position of the metal base plate 1, and the striker 10 is engaged when one of the left and right sides of the striker engaging groove 2 is closed. A ratchet 4 for elastically attaching to the latch 3 to prevent reverse rotation of the latch 3 is attached to one of the other sides of the latch 3 which rotates while rotating. The ratchet 4 in a door closed state is attached to the base plate 1 by the latch. A half-latch member 14 is provided to prevent the hood from directly opening even if the hood is detached from the latch member 3. A pin 20 is attached to the latch 3, and the pin 20 faces the back of the half-latch member 14. When the latch 3 is rotated by the striker 10 with the door closed, the pin 20
The half-latch body 14 is pushed and rotated, and the half-latch engagement claw 16 of the half-latch body 14 is displaced to a position where the striker engagement groove 2 is closed. Things.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
Reference numeral 1 denotes a base plate made of metal. A striker engaging groove 2 is formed at an intermediate position between the left and right sides of the striker engaging groove 2, the upper part of which is widened and narrows downward. , The ratchets 4 are respectively mounted on the shafts. 5 is an axis for attaching the latch 3 to the base plate 1,
Reference numeral 6 denotes a shaft for pivotally attaching the ratchet 4 to the base plate 1. To wear.

Reference numeral 10 denotes a striker fixed to the bonnet, 11 denotes a striker engagement groove formed in the latch 3 with which the striker 10 engages when the door is closed, 12 denotes a full latch engagement step formed in the latch 3, and 13 denotes a step. This is an engagement claw formed on the ratchet 4 that engages with the full latch engagement step portion 12. Thus, a half-latch body 14 is secured to the base plate 1 by a shaft 15 so that the hood does not open directly even if the engaging claw 13 of the ratchet 4 is disengaged from the full-latch engaging stepped portion 12. Reference numeral 16 denotes a half-latch engaging claw of the half-latch body 14, and an over-center spring 17
Is switched between the non-operation position in FIG. 4 and the operation position in FIG.

In FIGS. 4, 5 and 6, when the hood is opened, the half-latch engaging claw 16 is retracted to the non-operating position of FIG. 4, and when the hood is closed, the striker 10 is half-latched. It does not come into contact with the engaging claw 16. Accordingly, although there is no abnormal noise caused by the collision between the striker 10 and the half-latch engagement claw 16, it is necessary to rotate the half-latch engagement claw 16 to the operating position (FIG. 5) when the door is closed. Has a steeply inclined wall 18 formed in a part of the half-latch body 14, and this is projected into the striker engagement groove 2 so as to be exposed. The slope of the inclined wall 18 is steep, and almost no sound is generated even when the striker 10 slides. 19 is a lever for opening the hood.

FIGS. 7 and 8 show an embodiment in which the inclined wall 18 is not provided.
, And the pin 20 pushes the back of the half-latch body 14. 21 is a through hole through which the pin 20 passes, 2
2 is a wire.

[0009]

Next, the operation will be described. Referring to the first embodiment shown in FIGS. 4 and 5, the hood opening state is as shown in FIG. 4, and a steeply inclined wall 18 faces the striker engaging groove 2 and the half latch engaging claw 16 Are retracted from the striker engagement groove 2. When the hood is closed in this state, the striker 10 slides against the inclined wall 18 and causes the half latch body 14 to resist the elasticity of the overcenter spring 17 as shown in FIG.
, The half-latch engagement claw 16 of the half-latch body 14 is switched to the operation position for closing the striker engagement groove 2. At the same time, the striker 10 engages with the striker engaging groove 11 of the latch 3 to rotate the latch 3, and the engaging claw 1 of the ratchet 4
3 are engaged and the door is closed. During this time, the collision between the striker 10 and the half-latch body 14 is not a collision between the striker 10 and the half-latch engagement claw 16 as in the conventional one,
It is quiet because only the sliding of the striker 10 and the inclined wall 18 is performed. When opening the hood, pulling the release lever of the driver's seat and pulling the wire 22 causes the engaging claw 13 of the ratchet 4 to be disengaged from the full latch engaging step 12 of the latch 3,
Although the striker 10 is disengaged from the latch 3, the striker engaging groove 2 is closed by the half-latch engaging claw 16, so that the striker 10 can be stopped as in the prior art, which is safe.

Referring to FIG. 7 and subsequent embodiments, when the door is closed, the striker 10 descends, but the half-latch engaging claw 16 of the half-latch body 14 does not protrude into the striker engaging groove 2. Therefore, the striker 10 and the half latch engaging claw 16 do not collide. Therefore, the door can be closed quietly. When the striker 10 is engaged with the striker engaging groove 11 of the latch 3 to rotate the latch 3, the pin 20 protruding from the latch 3 rotates, and the pin 20 pushes the back of the half-latch body 14, and FIG. The half-latch engagement claw 16 protrudes into the striker engagement groove 2 and acts as shown in FIG. 10 to prevent the hood from being opened.

[0011]

As shown in FIG. 1, when the bonnet is closed, the striker B fixed to the bonnet collides with the half-latch engaging claw G of the half-latch body F, and as shown in FIG. It is a structure that opens and closes as shown in FIG. At this time, a considerably loud collision sound is emitted. This collision sound becomes smaller when the angle of the inclined portion H of the half-latch engaging claw G is made steeper. However, since the angle of the inclined portion H cannot be made steeper than the limit, a known one makes a considerably loud noise. . However, according to the present invention, the striker engaging groove 2 of the striker 10 attached to the bonnet is formed at the left and right intermediate position of the metal base plate 1 and the striker engaging groove 2 is closed when one of the left and right sides is closed. 10 engages and rotates the latch 3 on either side.
Ratchet 4 for preventing the latch 3 from rotating in reverse
A half-latch body 14 is provided on the base plate 1 so that the hood does not directly open even if the ratchet 4 in the closed state is released from the latch 3 on the base plate 1. Is formed on a steeply inclined wall 18, which faces the striker engaging groove 2, and when the door is closed, the striker 10 rubs against the inclined wall 18 and The half-latch body 14 rotates, and the half-latch engagement pawl 16
Is a locking device for a vehicle bonnet which is displaced to an operation position for closing the striker engagement groove 2.
Since the steeply inclined wall 18 and the striker 10 are rubbed against each other, an effect of a quiet lock device can be obtained. The present invention also provides a striker engaging groove 2 for a striker 10 attached to a bonnet formed at a middle position between the left and right of a metal base plate 1. A latch 3 which engages and rotates with the other is fitted with a ratchet 4 which is elastically attached to the latch 3 to prevent the latch 3 from reversing, and the base plate 1 is provided with the ratchet in a closed state. A pin 20 is attached to the latch 3 so that the hood does not open directly even when the latch 4 is disengaged from the latch 3. A pin 20 is attached to the back of the half latch 14. When the door is closed and the latch 3 is rotated by the striker 10, the pin 20 pushes and rotates the half latch body 14, Since the half-latch engaging claw 16 of the half-latch body 14 is a locking device for a vehicle bonnet which is displaced to an operation position for closing the striker engaging groove 2, the striker 10 and the half-latch Since the body 14 does not contact at all, there is an effect that the lock device is quiet.

[Brief description of the drawings]

FIG. 1 is a front view of a conventional lock device before a door is closed.

FIG. 2 is a front view of a conventional lock device in the middle of closing a door.

FIG. 3 is a front view of the conventional lock device when the door is completely closed.

FIG. 4 is a front view of the lock device according to the first embodiment of the present invention before the door is closed.

FIG. 5 is a front view of the first embodiment of the lock device of the present invention when the door is closed.

FIG. 6 is a front view of a half latch body.

FIG. 7 is a front view of a lock device according to a second embodiment of the present invention before the door is closed.

FIG. 8 is a front view of the second embodiment of the lock device according to the present invention when the door is completely closed.

9 is a front view in which FIG. 5 is a half latch.

FIG. 10 is a front view in which FIG. 8 is a half latch.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base plate, 2 ... Striker engagement groove, 3 ... Latch, 4 ... Ratchet, 5 ... Shaft, 6 ... Shaft, 7 ... Engaging part, 8
... Engagement part, 9 spring, 10 striker, 11 striker engagement groove, 12 full latch engagement step, 13 engagement claw, 14 half latch body, 15 shaft, 16 half latch engagement Claw, 17: over center spring, 18: inclined wall,
19: lever, 20: pin, 21: through hole, 22: wire.

Claims (2)

[Claims] 1. A striker engaging groove 2 of a striker 10 attached to a bonnet is formed at a middle position between the left and right of a metal base plate 1. When the door is closed on one of the right and left sides of the striker engaging groove 2, the striker 10 is closed. A latch 3 which engages with and rotates on one of the other sides is provided with a ratchet 4 which is elastically attached to the latch 3 to prevent the latch 3 from reversing, and the base plate 1 is provided with the ratchet 4 in a closed state. Is provided with a half-latch body 14 for preventing the hood from directly opening even if the half-latch body 14 is disengaged from the latch 3, and a part of the half-latch body 14 is formed on a steeply inclined wall 18; When the door 18 is closed, the striker 10 rubs against the inclined wall 18 and the half latch 14 rotates. A locking device for a vehicle bonnet, wherein the half-latch engaging claw 16 is displaced to an operation position for closing the striker engaging groove 2. 2. A striker engaging groove 2 of a striker 10 attached to a bonnet is formed at a left and right intermediate position of a metal base plate 1. When the door is closed on one of the right and left of the striker engaging groove 2, the striker 10 is closed. A latch 3 which engages with and rotates on one of the other sides is provided with a ratchet 4 which is elastically attached to the latch 3 to prevent the latch 3 from reversing, and the base plate 1 is provided with the ratchet 4 in a closed state. A half-latch body 14 for preventing the hood from directly opening even if it is disengaged from the latch 3, wherein a pin 20 is attached to the latch 3,
The pin 20 faces the back of the half latch body 14,
When the door is closed and the latch 3 is rotated by the striker 10, the half latch body 14 is pushed and rotated by the pin 20, and the half latch engagement claw 16 of the half latch body 14 engages the striker engagement groove 2. A locking device for a vehicle bonnet which is displaced to a closing position.