JP2558305Y2 - 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 a hood of an automobile in a closed state.

[0002]

2. Description of the Related Art As a latch structure of the bonnet,
For example, Japanese Unexamined Utility Model Publication No. 2-43371 discloses a longitudinal groove B provided in a latch base member A on the vehicle body side, as shown in FIG. 10, and a striker C attached to the bonnet when the bonnet is closed. And the striker C is locked to the fork lever in conjunction with the fitting,
In addition, a technique is disclosed in which the hood is latched in a closed state by locking the fork lever with a claw lever, and the hood can be opened by releasing the lock by the lock lever.

In the bonnet latch structure in that case, a hook lever E which rotates around a fulcrum D is attached to a latch base member A as shown in FIG.
Accordingly, the hook lever E is also located at a position where the entrance of the vertical groove B provided in the latch base member A is always closed.

According to this, for example, even when the vehicle is run in the above-mentioned disengaged state of the striker C, the hook lever E once engages with the striker C which tries to escape from the vertical groove B. Can be prevented from being lifted and released.

[0005]

By the way, in the above-described bonnet latch structure, particularly when the bonnet is closed, the hook lever E is pushed away by the striker C which enters the vertical groove B, and the hook lever E is pushed by the stopper g1 on the open side. Then, it comes into contact with the stopper g2 on the close side in the return operation after the rush, so that the hitting sound at the time of the contact becomes considerably loud.

Accordingly, an object of the present invention is to provide a hood latch structure for a vehicle which can reduce the hitting sound when operating the hood.

[0007]

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 vehicle hood latch structure comprising a hook lever biased by a spring member, wherein the hook lever has a stopper lever portion formed therein, and the base member is disposed with the stopper lever portion interposed therebetween. Two stoppers for restricting the rotation range of the hook lever are provided, and a buffer member is attached to at least one of the stopper or the stopper lever. .

[0008] Further, the invention according to claim 2 (hereinafter referred to as a second invention)
The present invention is characterized in that a cylindrical buffer member is externally fitted to the stopper lever portion.

Further, the invention according to claim 3 (hereinafter referred to as the third invention)
The present invention is characterized in that the cushioning member is externally fitted by being bent in a substantially L-shape over a stopper lever portion and a base portion side of a hook lever provided with the stopper lever portion.

The invention according to claim 4 (hereinafter referred to as the fourth invention)
The present invention is characterized in that each stopper is formed by cutting and raising the shape of the stopper so that the stopper lever portion comes into surface contact with the stopper.

The invention according to claim 5 (hereinafter referred to as the fifth invention)
The present invention is characterized in that a spring member is stretched between a base member and a stopper lever portion, and the spring member is hooked on the stopper lever portion with a buffer member interposed therebetween.

Further, the invention according to claim 6 (hereinafter referred to as a sixth embodiment)
The present invention is characterized in that the cushioning member is provided with a cover that covers the spring member hooked on the stopper lever portion and whose inner diameter substantially matches the outer diameter of the spring member.

Further, the invention according to claim 7 (hereinafter referred to as a seventh invention) is to provide a cover of a cushioning member with a lower opening into which a spring member projects, and an upper closing portion for covering the spring member. And characterized in that:

[0014]

According to the first aspect of the present invention, the shock when the stopper lever portion of the hook lever comes into contact with the stopper is absorbed by the cushioning member, and the hitting sound is reduced.

According to the second aspect of the present invention, since the cushioning member is a cylindrical member externally fitted to the stopper lever, the impact of the two stoppers can be suppressed by the cushioning member alone.

According to the third invention, the cushioning member is substantially L
Since the cushioning member is bent and fitted to the outside, the cushioning member can be stably attached, the retention of the cushioning member is improved, and the above-described hitting noise suppression is effectively performed.

Further, according to the fourth invention, the contact between the stopper and the stopper lever portion is performed by surface contact, so that the surface pressure at the time of the contact is reduced and the hitting sound is reduced. Become.

In the above-mentioned spring member for urging the hook lever, at the portion where the spring member and the stopper lever are engaged, sliding contact occurs due to the rotation of the hook lever. When the plating of the metal is peeled off and a foreign metal contact such as iron (stopper lever) and stainless steel (spring member) occurs, an electric contact occurs,
This causes rust. On the other hand, according to the fifth aspect of the present invention, since the spring member is hung on the stopper lever portion with the buffer member interposed therebetween, there is no direct sliding contact between the spring member and the stopper lever portion. Rust due to touch can also be prevented. If a buffer member for reducing the tapping sound is provided on the stopper lever portion side, the spring member can be hooked as described above with the buffer member interposed therebetween. If it is provided only on the side, a cushioning member for hooking a spring member is attached to the stopper lever portion.

According to the sixth aspect of the present invention, the cover is formed so as to have an inner diameter substantially matching the outer diameter of the spring member. Damping can be performed to reduce the impact sound.

Further, according to the seventh invention, the upper part is closed,
Since the lower portion is opened, the spring member is waterproofed by the cover portion even when water is splashed from above, and further, it is possible to prevent moisture from remaining inside the cover.

[0021]

Next, an embodiment of the present invention will be described 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 part of the bonnet 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 disposed, and a latch base member 6 in a bonnet latch structure is attached to the shroud upper 5. In this case, the latch base member 6 has a substantially U-shaped horizontal cross section, and the right and left wing portions 6a, 6a of the member are shrunk by the fasteners 7, 7, such as bolts and nuts.
Fixed to

The above-mentioned latch base member 6 has a vertical groove 8 formed downward from the upper end at the center portion.
When the bonnet 1 is opened and closed, the striker 3 enters and exits the vertical groove 8.

As shown in FIG. 2, fork levers 9 and claw levers 10 are provided on the back side (the rear side of the vehicle body) of the latch base member 6 with the fulcrum pins 11 and 12 interposed therebetween. It is attached so that it can rotate. 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 the latch base member 6 and the fork lever 9 The fork portion 13a is urged to open upward in the vertical groove 8 by the action of the spring member 14 attached between the striker 3 and the striker 3 protrudes into the vertical groove 8 from this state. The striker 3 is fitted on the fork portion 13a, and the fork member 9 is turned downward. That is, the striker 3 is restrained and moves to the hood latch position.

On the other hand, the above-mentioned claw lever 10 is for locking the fork lever 9 engaged with the striker 3, and has a claw 15 formed on the fork lever side, and The pawl 15 is always urged to a position in which it 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, and the fork lever 9 is moved as described above. The pawl 15 is pushed into the lock portion 13b as the push-down lever 3 is pushed down, and the fork lever 9 is locked by the force of the spring member 16 described above.

The unlocking operation by the above-mentioned claw lever 10 is performed by an operation from the vehicle interior side.
An operation member (not shown) in the vehicle compartment and the claw lever 10 are connected by a wire cable 17. In this case, when one end of the outer tube 17a of the wire cable 17 is fixed to the latch base member 6, the distal end of the inner wire 17b is connected to the claw lever 10, thereby pulling the wire cable 17 from the passenger compartment side. Accordingly, the claw lever 10 is rotated clockwise from the position shown in FIG. 2 so that the above-mentioned claw 15 is disengaged from the lock portion 13b.

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

Further, a stopper lever 23 is formed on the hook lever 18 so as to be bent substantially in an L-shape from the neck base 18a toward the front side of the vehicle body. 21 and a hole 23a is formed at the end of the stopper lever portion 23.
Is opened, one end of the above-mentioned spring member 22 is hooked,
The other end of the spring member is hooked on a hook 24 provided on the latch base member 6. Therefore, the stopper lever 23 also serves as a hook for the spring member 22.

Each of the stoppers 20, 21 is cut and raised so that the stopper lever 23 comes into surface contact with the hook lever 18 when the hook lever 18 rotates.
Cylindrical rubber members 25, 25 (see FIG. 4) are fitted and attached to the respective members.

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 shown 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 described above, and enters the bottom of the vertical groove 8 while rotating the fork lever 9. By this, the claw 1 of the claw lever 10
5 protrudes into the lock portion 13b of the fork lever 9, and the fork lever 9 is locked.
The striker 3 is kept in the hood latch state shown in FIG.

On the other hand, when the above-described wire cable 17 is pulled by an operation from the passenger compartment side, the inner wire 1
7b, the claw lever 10 is rotated against the spring member 16, and the claw 15 of the craw lever 10 is
Remove from b. As a result, the hood latch state is released.

When the hood is opened and closed, the hook lever 18 comes into contact with the open-side stopper 20 and the close-side stopper 21, as described above. However, since the rubber member 25 is fitted to each of the stoppers 20 and 21, the contact impact is absorbed by the rubber member 25, and the hitting sound is reduced. In addition, since the stopper lever portion 23 is L-shaped and each of the stoppers 20 and 21 is formed so as to abut the surface thereof, the contact pressure at the time of the contact decreases,
The hitting sound is smaller.

FIGS. 5 to 7 show a second embodiment of the present invention, in which a rubber member 125 is attached to the stopper lever 23, and the spring member 22 is attached to the stopper lever 23 from above the rubber member 125. The hook 22a is hooked. That is, the rubber member 125 has a cylindrical shape as shown in FIG. 7, and the cut 26 is formed on the side surface on one end side. The notch 26 is also formed on the opposing side surface. The rubber member 125 is externally fitted to the stopper lever portion 23 in an L-shape with the hook lever 23, and the hook portion 22a of the spring member 22 is connected to the one notch 26. After passing through the hole 23a of the stopper lever portion 23 and then coming out of the other notch 26, it is attached.

Also in this embodiment, since the stopper lever portion 23 contacts the stopper 121 via the rubber member 125, the impact sound is absorbed by the rubber member 125, so that the hitting sound is reduced.

In addition, since the rubber member 125 is bent and attached in an L-shape to the stopper lever portion 23 as described above, the holding property of the rubber member 23 is improved,
Even if the hook lever 18 is turned by impact, an accurate buffering effect is stably exhibited.

The hook portion 22a of the spring member 22
The rubber member 125 is fixed to the stopper lever portion 23 through a notch 26 provided in the rubber member 125. For this reason, as shown in FIG. 6, on the side where the hook portion 22a enters, a part of the rubber member 125 is cut by the entry.
6 and is drawn into the hole 23a, thereby preventing the hook portion 22a from directly contacting the stopper lever portion 23. Therefore, sliding contact at the time of rotation of the hook lever 18 is eliminated, and occurrence of electric contact is prevented. It is convenient to provide small holes 27, 27 at both ends of the cut 26 to facilitate deformation of the rubber member 125.

FIGS. 8 and 9 show a third embodiment of the present invention, in which a rubber member 225 is fitted into the above-mentioned stopper lever 23 in an L-shape in the same manner as in the second embodiment.
a and a cap-shaped cover portion 225 b that is integral with the tubular portion 225 a and that covers the upper portion of the spring member 22 that is hooked on the stopper lever portion 23. The rubber member 225 is attached by fitting the above-mentioned cylindrical portion 225a to the stopper lever portion 23 from its tip and then covering the cover portion 2
The hook portion 22a of the spring member 22 is hooked on the hole 23a from below the hole 25b. Therefore, in order to facilitate the hooking operation of the hook portion 22a with respect to the stopper lever portion 23, the cut 225 is formed in the cover portion 225b.
c is provided so that the cover portion 225b can be expanded during the hooking operation.

When such a rubber member 225 is used, rainwater or the like flows from the front grill to the stopper lever portion 23.
Even if the spring member 22 is caught, the hook on the spring member 22 is suppressed, and even if the spring member is made of iron, the generation of rust is suppressed. Can be expected.

Furthermore, if the inner diameter of the cover 225b and the outer diameter of the spring member 22 fitted to the cover 225b are made substantially equal, the stopper lever 23
The vibration of the spring member 22 at the time of contact with the first member 1 can be suppressed, and the hitting sound can be reduced.

[0040]

As is apparent from the above description, according to the present invention, the shock when the stopper comes into contact with the stopper is absorbed by the buffer member, the tapping sound is reduced, and the hood is closed quietly. Can be done.

Further, since the cushioning member is a cylindrical member externally fitted to the stopper lever portion, it is possible to suppress the hitting sound when the hood is opened and when the hood is closed by the cushioning member alone.

Further, since the cushioning member is bent into a substantially L-shape and fitted to the stopper lever portion, the holding performance of the cushioning member is improved, the contact with the stopper is ensured, and the above-described hitting noise suppression is suppressed. Is effectively performed.

Further, since the stopper and the stopper lever are brought into surface contact with each other, the contact pressure at the time of the contact is reduced, and the hitting sound is reduced.

Further, since the spring member is hung on the stopper lever with the buffer member interposed therebetween, direct sliding contact between the spring member and the stopper lever portion is eliminated, and rust due to electric contact can be prevented.

Further, since the spring member is covered with the cover portion of the cushioning member, it is possible to suppress the occurrence of rust when the spring member is made of iron, and to suppress the vibration of the spring member at the time of the aforementioned contact. Sound attenuation can be achieved.

[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 stopper portion.

FIG. 5 is a perspective view of a stopper according to a second embodiment of the present invention.

FIG. 6 is a sectional view of FIG. 5;

FIG. 7 is a perspective view of a rubber member used in the second embodiment.

FIG. 8 is a side view of a stopper portion according to a third embodiment of the present invention.

FIG. 9 is a perspective view of a rubber member used in the third embodiment.

FIG. 10 is an explanatory view of a conventional example.

[Explanation of symbols]

 Reference Signs List 1 bonnet 3 striker 6 latch base member 8 vertical groove 18 hook lever 20, 21, 121 stopper 22 spring member 23 stopper lever portion 25, 125 rubber member 225b cover portion

Claims (7)

(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 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 a vertical groove from a side surface. A stopper lever portion is formed, and the base member is provided with two stoppers arranged to sandwich the stopper lever portion and restricting a rotation range of the hook lever,
A hood latch structure for a vehicle, wherein a buffer member is attached to at least one of the stopper or the stopper lever. 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 a vertical groove from a side surface. A stopper lever portion is formed, and the base member is provided with two stoppers arranged to sandwich the stopper lever portion and restricting a rotation range of the hook lever,
A hood latch structure for a vehicle, wherein a cylindrical buffer member is externally fitted to a stopper lever portion. 3. The method according to claim 1, wherein the buffer member includes a stopper lever portion,
3. The hood latch structure for a vehicle according to claim 2, wherein the stopper lever portion is bent substantially in an L-shape over the base side of the hook lever to which the stopper lever portion is continuously provided, and is externally fitted. 4. The bonnet latch structure for a vehicle according to claim 1, wherein each of the stoppers is cut and raised so that the stopper lever portion comes into surface contact with the stopper. 5. The device according to claim 1, wherein the spring member is attached between a base member and a stopper lever portion, and the spring member is hooked on the stopper lever portion with a buffer member interposed therebetween. 5. The bonnet latch structure for a vehicle according to any one of items 4 to 4. 6. The cushioning member according to claim 2, further comprising a cover member that covers a spring member hooked on a stopper lever portion and that has an inner diameter substantially equal to an outer diameter of the spring member.
6. The hood latch structure for a vehicle according to any one of items 5 to 5. 7. The vehicle according to claim 6, wherein the cover of the cushioning member comprises a lower opening into which a spring member protrudes, and an upper closing portion covering the spring member. Bonnet latch structure.