JP2558304Y2 - Vehicle bonnet latch structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for latching an automobile bonnet.

[0002]

2. Description of the Related Art As a latch structure of the bonnet,
For example, in Japanese Utility Model Laid-Open No. 2-43371, as shown in FIG. 6, a vertical groove B is provided in a latch base member A on the vehicle body side, and a striker C attached to the bonnet when the hood is closed is inserted into the vertical groove E. Along with the fitting, the striker C is locked to a fork lever in conjunction with the fitting, and the fork lever is locked with a claw lever, thereby latching the hood in a closed state,
There has been disclosed a technology that can open a hood by unlocking the claw lever.

In the bonnet latch structure in this case, a hook lever E which rotates around a fulcrum D is attached to a latch base member A as shown in FIG. To strike the striker C.

According to this, even when the vehicle travels with the latch of the bonnet released, for example, the hook lever once engages with the striker C which tries to get out of the vertical groove B, so that the bonnet can be lifted vigorously. It is prevented beforehand.

[0005]

By the way, the above-mentioned hook lever E is rotated between a solid line posture in which the hook portion e1 closes the entrance of the vertical groove B and a chain line posture in which the closure is released. In order to regulate the rotation range in that case, a pair of stoppers g1,
g2 is cut and raised, and these stoppers g
A structure is adopted in which a stopper lever e2 provided on the hook lever E is inserted between the hook levers E and 1g2.

However, since the hook lever E is usually stamped and formed from a sheet metal by press working, providing the stopper lever portion e2 integrally increases the size of the hook lever and accordingly increases the hook lever. The stripping efficiency of E will be reduced.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a hood latch structure for a vehicle in which the shape of a hook lever can be reduced in size and can be extracted from a sheet metal with a high yield.

[0008]

That is, the invention according to claim 1 of the present invention (hereinafter referred to as a first invention) is fixed to a vehicle body, and a striker on a hood side is closed by an operation of closing the hood. A base member having a vertical groove to be fitted, a latch member to be engaged with a striker fitted to the vertical groove, and a rotatable attachment to the base member so as to abut against the striker in the vertical groove from the side. A hook lever biased by a spring member, wherein the hook lever has a hook portion for the spring member and is located on both sides of the hook portion. And two stoppers for regulating the rotation range of the hook lever are provided on the base member.

According to a second aspect of the present invention, a hook portion of a spring member is formed by a bent portion provided on a hook lever, and the hook member is attached to the base member. Two stoppers are cut and raised so as to be located on both sides of the portion, and the cut and raised surfaces of these stoppers are arranged so as to be in surface contact with the engaging portions.

[0010]

According to the first aspect of the present invention, the hook portion, which is the mounting portion of the spring member of the hook lever, also serves as a contact member with the stopper, so that a dedicated contact portion for the stopper becomes unnecessary. .

When the hook lever and the stopper are brought into contact with each other by the rotation of the hook lever, the hook lever is urged by the spring member. In addition, there is a possibility that interference flaws may occur in each of them, and it is conceivable that the plating applied to these members is damaged and rust prevention is impaired. On the other hand, in the second invention, the hook portion of the spring member of the hook lever is formed of a bent portion, and the hook portion contacts the cut-and-raised surface of the stopper. The contact between the hooking part and the stopper is performed by surface contact, and the surface pressure at the time of contact decreases,
Shock will be reduced.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings.

In the bonnet latch structure shown in FIG. 1, a substantially U-shaped striker 3 is attached to the front lower surface of the hood 1 of the vehicle at a position corresponding to the front grill 2 of the vehicle in the longitudinal direction of the vehicle. At this position, a shroud door 5 extending in the vehicle width direction in the upper part of the engine room 4 is arranged, and the latch base member 6 in the bonnet latch structure is attached to the shroud upper 5. In this case, the horizontal cross section of the latch base member 6 has a substantially U-shape, and the left and right wing portions 6a, 6a of the latch base member 6 are fixed to the shroud upper
Fixed to

The latch base member 6 has a vertical groove 8 formed at the center from the upper end to the lower side.
When the bonnet 1 is opened and closed, the striker 3 enters and exits the vertical groove 8.

As shown in FIG. 2, the fork lever 9 and the claw lever 10 are rotated by fulcrum pins 11 and 12 on the back side of the latch base member 6 (rear side of the vehicle body) with the vertical groove 8 interposed therebetween. It is movably mounted. The fork lever 9 has a concave fork portion 13a and a lock portion 13b formed at the distal end of the peripheral surface thereof, and in a state where the striker 3 comes out of the vertical groove 8,
The fork portion 13a is urged by the action of the spring member 14 attached between the latch base member 6 and the fork lever 9 to a state in which the fork portion 13a is opened upward in the vertical groove. 8, the striker 3 fits into the fork portion 13a and rotates the fork lever 9 downward. That is, the fork lever 9 restrains the striker 3 and moves to the hood latch position.

On the other hand, the above-mentioned claw lever 10 locks the fork lever 9 engaged with the striker 3, and the claw lever 9 has a claw 1 on the fork lever side.
5 is formed, and the claw 15 is constantly urged to a position in which the claw 15 comes into contact with the peripheral surface of the fork lever 9 by the action of the spring member 16 attached between the claw lever 10 and the latch base member 6. As the fork lever 9 is pushed down by the force of the striker 3 as described above, the claw 15 enters the lock portion 13b, and the fork lever 9 is locked at the bonnet latch position by the force of the spring member 16 described above. .

The unlocking operation by the claw lever 10 is performed by an operation from the vehicle interior side, and an operation member (not shown) in the vehicle interior is connected to the claw lever 10 by a wire cable 17. In this case, the distal end of the inner wire 17b is connected to the claw lever 10 while one end of the outer tube 17a of the wire cable 17 is fixed to the latch base member 6, whereby the wire cable 17 can be operated from the inside of the vehicle. When towed, the claw lever 10 rotates clockwise from the position shown in FIG. 2 so that the above-mentioned claw 15 comes off the lock portion 13b.

A hook lever 18 is attached to the front side (the front side of the vehicle body) of the latch base member 6 as shown in FIG. The hook lever 18 is rotatable about a shaft 19, and its rotation range is restricted by a pair of closed-side and open-side stoppers 20 and 21 formed by cutting and raising the latch base member 6. The hook lever 18 is urged to the vertical groove 8 in the upright posture by the action of the spring member 22 attached to the latch base member 6. Further, the hook lever 18 is provided on the neck 1 extending upward from the neck base 18 a attached to the shaft 19 along the longitudinal groove 8.
8b, and a hook 18c for closing the entrance of the vertical groove 8 is formed at the tip of the neck 18b.

Further, a hook portion 23 is formed on the hook lever 18 so as to be bent substantially in an L-shape from the neck base portion 18a toward the front side of the vehicle body. And one end of the spring member 22 is hooked into the hole 23 a provided in the hook portion 23, and the other end of the spring member is provided in the latch base member 6. It is hooked on the part 24. Therefore, the hook portion 23 is configured to function as a mounting member for the spring member 22 and to function as a stopper lever portion as a rotation restricting member for the hook lever 18. In this case, the hooks 2 for the stoppers 20 and 21 are provided.
The contact of the stoppers 3 is performed as shown in FIG.
The cut-and-raised surfaces 20a and 21a of 0 and 21 are made to come into contact with the end surface portion 23x of the hook portion 23 by surface contact.

In the bonnet latch structure described above, the striker 3 comes into contact with the hook portion 18c of the hook lever 18 from above by closing the bonnet 1, and the hook lever 18 is pressed against the spring member 22 to the position indicated by the chain line in FIG. And enters the flute 8 while pushing away. Then, the fork lever 9 is fitted into the fork portion 13a of the fork lever 9 as described above, and enters the bottom of the vertical groove 8 while rotating the fork lever 9 as described above. As a result, the claw 15 of the claw lever 10 is
3b, the fork lever 9 is locked, and the striker 3 is maintained in the hood latch state shown in FIGS.

On the other hand, when the above-described wire cable 17 is pulled by an operation from the passenger compartment, the claw lever 10 is rotated by the inner wire 17b against the spring member 16, and the claw 15 of the craw lever 10 is moved. The fork lever 9 is disengaged from the lock portion 13b, whereby the fork lever 9 is rotated upward by the action of the spring member 14, and the engagement of the striker 3 is released.

In the bonnet latch structure described above, a hook 23 to which a spring member 22 for urging the hook lever 18 to the upright position is inserted is projected between the stoppers 20 and 21, and the hook lever 23 is moved by the hook 23. It is configured to function to restrict the rotation of 18. Therefore, it is not necessary to separately provide a stopper lever portion for restricting the rotation as in the related art, so that the shape of the hook lever 18 can be reduced, and the hook lever 1 can be formed from a sheet metal.
The efficiency of stripping when punching 8 is improved.

Further, since the latch base member 6 including the stoppers 20 and 21 and the hook lever 18 are plated with rust for preventing rust, the rotation of the hook lever 18 causes the latching portion 23 to be strong. Contact with 21 causes interference flaws, peels off the plating, and impairs rust prevention. However, the above-mentioned hooking portion 23 is formed of a substantially L-shaped bent portion provided on the neck base 18a, and the cut-and-raised surface 20 of each of the stoppers 20, 21 is formed.
Since the end face portion 23x is brought into surface contact with the a and 21a, the surface pressure at the time of the contact can be reduced and the impact can be reduced.
Therefore, it is possible to prevent the occurrence of the scratches and the decrease in rust prevention.

Incidentally, the hook lever 18 described above has
The handle portion 25 is provided so as to be able to be rotated by inserting a hand from between the front grills 2. If the bonnet latch structure is provided by such a close arrangement with respect to the front grill 2, rainwater from the front grill 2 is provided. It is also conceivable that the penetration of the like causes rust on the spring member 22 of the hook lever 18 located at a position facing the front grill 2 and impairs the operability of the hook lever 18.
On the other hand, as shown in FIG. 5, if the handle portion 125 is formed so as to be folded laterally through the front surface of the spring member 21,
The spring member 21 is covered by the handle portion 125, so that the catch of rainwater or the like can be suppressed, and the malfunction of the hook lever 18 due to rust can be eliminated.

[0025]

As is apparent from the above description, according to the first aspect of the present invention, the hook portion of the hook lever, which is the mounting portion of the spring member, also serves as a contact member with the stopper. In addition, a dedicated contact portion for the stopper is not required, and the shape of the hook lever can be reduced in size, and the efficiency of removing a plate from a sheet metal can be improved.

In the second invention, the hook portion of the spring member of the hook lever is formed of a bent portion, and the hook portion contacts the cut-and-raised surface of the stopper. Since the contact between the engaging portion and the stopper is performed by surface contact, the surface pressure at the time of contact is reduced, the impact is reduced, and the occurrence of interference flaws and rust can be suppressed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a vehicle body showing a use portion of a hood latch structure according to the present invention.

FIG. 2 is a view taken along line AA in FIG.

FIG. 3 is a view taken along line BB in FIG. 2;

FIG. 4 is a perspective view of a main part of the bonnet latch structure.

FIG. 5 is a front view showing a modified structure of the bonnet latch structure.

FIG. 6 is an explanatory view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bonnet 3 Striker 6 Latch base member 8 Vertical groove 18 Hook lever 20, 21 Stopper 22 Spring member 23 Hook

Claims (2)

(57) [Scope of request for utility model registration] A base member fixed to the vehicle body and having a vertical groove into which a striker on the bonnet side is inserted by closing the bonnet; a latch member engaged with the striker inserted into the vertical groove; A hook lever rotatably attached to the base member and urged by a spring member so as to abut against the striker in the vertical groove from a side surface, the vehicle hood latch structure comprising: A hook portion for the spring member, and two hook lever rotation range stoppers are provided on the base member so as to be located on both sides of the hook portion. Construction. 2. A base member fixed to a vehicle body and having a vertical groove into which a striker on the bonnet side is inserted by closing the bonnet; a latch member engaged with the striker inserted into the vertical groove; A hood latch structure for a vehicle, comprising: a hook lever rotatably attached to a base member and urged by a spring member so as to abut against a striker in the vertical groove from a side surface, wherein the spring member Is formed by a bent portion provided on the hook lever, and two stoppers are cut and raised on the base member so as to be located on both sides of the hook portion, and the cut and raised surfaces of these stoppers are formed as described above. A bonnet latch structure for a vehicle, wherein the bonnet latch structure is arranged so as to be in surface contact with a hook portion.