JP2002106238A - Lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain sharp hammering sound generated when a pin member 20 collides with a cam member 10 in a push-open type opening and closing member including the cam member 10 and the pin member 20. SOLUTION: The cam member 10 is provided with an outer edge sliding contact area 11 where the pin member 20 comes into sliding contact, a first pin receiving part 13 where the pin member 20 passing the outer edge sliding contact area 11 collides, a second pin receiving part 15 where the pin member 20 collides following the first pin receiving part 13, a locking part 16 for locking the pin member 20, a third pin receiving part 17 where the pin member 20 moved from the locking part 16 collides, and a guide area 19 for guiding the pin member 20 which has collided with the third pin receiving part 17 to the outside of the cam member 10. The first to third pin receiving parts 13, 15, 17 are provided with a soft member 30 projected from the cam face, whereby the shock in colliding with the pin member 20 is absorbed by the soft member 30 to restrain generation of hammering sound.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-open type lock device for holding a closed state of an opening / closing storage device provided in an instrument panel of an automobile or the like.

[0002]

2. Description of the Related Art As a conventional lock device of this type, there is, for example, a heart cam device disclosed in Japanese Patent Application Laid-Open No. 4-154453. Although not specifically shown, the conventional device includes a cam member called a heart cam and a lock pin. The heart cam is mounted on the storage portion, and the lock pin is mounted on the slider. The slider is a console box or the like which can be moved out of the storage unit, and a lock device is mounted on the slider in order to keep the slider stored in the storage unit.

[0003] The heart cam is rotatably supported,
In addition, it is urged to rotate in one direction. And, with the storage operation of the slider, the lock pin contacts the heart cam,
As the heart cam is rotated, the lock pin slides along the cam surface of the heart cam to reach a lock portion in the cam. In this state, the lock pin is locked to the heart cam, and the stored state of the slider is maintained. When the slider in the housed state is slightly pushed in, the lock pin is disengaged from the lock portion of the heart cam, and when the slider is subsequently pulled out, the lock pin moves together and is automatically released from the heart cam.

[0004]

In the heart cam device (lock device) having the above-described structure, there is a portion where the lock pin collides with the cam surface of the heart cam and a tapping sound is generated.
Conventionally, the heart cam is formed of a hard resin material or a metal plate, while the lock pin is formed of a metal bar, so that the striking sound is high and sometimes gives the user discomfort. In addition, the conventional lock device in which this kind of tapping sound is generated every time the slider is stored and pulled out may give a cheap impression to a mounting target (for example, a glove box), and improvement is desired. Was.

[0005]

SUMMARY OF THE INVENTION The present invention has been developed in order to effectively solve the problems of the conventional locking device, and the invention according to claim 1 has an opening and the opening and closing of the opening. A hard pin member provided on one of the opening side and the opening / closing member, and a rotatable member provided on the opening side or the other of the opening / closing member. A cam member urged to rotate in the direction, the pin member and the cam member engage and relatively move with the opening / closing operation of the opening / closing member, and the pin member moves during the relative movement. A push-open type locking device having a configuration in which it collides with a predetermined portion of a cam surface formed in a member, wherein a soft member is provided in a portion of the cam member where the pin member collides.

According to a second aspect of the present invention, based on the first aspect, an outer edge sliding contact area with which the pin member slides and the pin member exceeding the outer edge sliding contact area collide with the cam member. A first pin receiving portion, a second pin receiving portion against which the pin member collides following the first pin receiving portion, a locking portion for locking the pin member, and a movement from the locking portion A third pin receiving portion against which the pin member has collided, and a guide region for guiding the pin member, which has collided with the third pin receiving portion, to the outside of the cam member, are formed. A soft member is provided on at least one of the third pin receiving portions.

According to a third aspect of the present invention, based on the first or second aspect, the cam member is formed of a hard resin material, and the soft member is provided so as to protrude from a cam surface formed on the cam member. It is characterized by.

According to a fourth aspect of the present invention, in the storage device including an opening and an opening / closing member for opening and closing the opening, a hard pin member provided on one of the opening and the opening / closing member; Or a cam member rotatably provided on the other of the opening / closing members and being urged to rotate in one direction by urging means. The opening and closing operation of the opening / closing member causes the pin member and the cam member to engage. A push-open type locking device having a configuration in which the pin member collides with a predetermined portion of the cam member during the relative movement together with the relative movement of the pin member. , A soft member is provided.

Therefore, according to the first and second aspects of the present invention, the soft member is provided at the position where the pin member collides with the cam surface of the cam member. It absorbs and suppresses the generation of high pitched sounds.

Further, according to the third aspect of the present invention, even when the soft member is worn by long-term use, the cam surface of the cam member made of the hard resin material receives the pin member. Operation is compensated.

On the other hand, according to the fourth aspect of the present invention, even when the soft member is provided on the side of the pin member which collides with the cam member, the impact at the time of the collision is flexibly absorbed by the soft member, and a high pitching sound Can be suppressed.

[0012]

Embodiments of the present invention will be described below in detail with reference to the drawings. Although not specifically shown, the lock device according to the embodiment of the present invention is applied to an opening / closing storage device (for example, a glove box) provided on an instrument panel or the like of an automobile. As shown in the drawing, a cam member 10 and a pin member 20 are included. One member is attached to the opening side of the storage device, and the other member is attached to an opening / closing member 1 such as a lid that opens and closes the opening. The opening / closing member 1 is configured to hold the closed state by engagement. In the present embodiment, the cam member 10 is mounted on the opening side of the storage device, and the pin member 20 moves together with the opening / closing member 1, and the description will be given below.

As shown in FIG. 1, the cam member 10 is made of a hard resin, is pivotally supported on the opening side of the storage device, is rotatable about the support shaft 2 in both a and b directions, and has a torsion spring. By the spring member 3 such as shown in FIG.
Biased in the direction. Also, the cam member 10 is
Is pivotable in the direction perpendicular to the plane of the drawing with the fulcrum as a fulcrum. On the other hand, the pin member 20 moves integrally with the opening / closing member 1 in the direction c (closed direction) or the direction d (opened direction) in FIG. The opening / closing member 1 is always in the d direction (that is, the opening direction) by a spring member (not shown).
Has been energized.

As shown in FIG. 2, the cam member 10 has an outer slidable contact area 11 and a cam groove area 12 which are curved on the side surface of the head, and the side surfaces of these areas form a cam surface. are doing. The entrance 12a of the cam groove area 12 is adjacent to the end 11a of the outer edge sliding contact area 11, and the first pin receiving portion 13 is formed on a side surface facing the end 11a of the outer edge sliding contact area 11.
Is formed. Also, the end 11a of the outer edge sliding contact area 11
The side surface of the continuous cam groove region 12 that is folded back from above forms a locking region 14 that is concavely curved. As described later, a second pin receiving portion 15 colliding with the pin member 20 passing through the first pin receiving portion 13 is formed near the terminal end 14a of the locking region 14. Further, a central portion of the locking region 14 forms a locking portion 16 that regulates movement of the pin member 20 in the opening direction (direction d in FIG. 1) and maintains the closed state of the storage device. . Furthermore, the end 14 of the locking area 14
A third pin receiving portion 17 is formed on the side surface of the cam groove region 12 facing the portion a. The bottom surface 18 of the cam groove region 12 that is in contact with the side surface on which the third pin receiving portion 17 is formed forms an inclined surface that becomes shallower toward the tip of the cam member 10, and the bottom surface 18 and the third pin A guide area 19 for guiding the pin member 20 colliding with the pin receiving portion toward the distal end of the cam member 10 and opening the pin member 20 to the outside of the cam member 10 in cooperation with the side surface on which the receiving portion 17 is formed. Is formed.

Next, the operation of the cam member 10 and the pin member 20 will be described with reference to FIG. When the opening / closing member 1 is pressed in the direction c to close the opening of the storage device,
The pin member 20 moves integrally with the opening / closing member 1 in the direction c (the closing direction), and as shown in FIG.
Abuts on the outer edge sliding contact area 11 of the cam member 10. Thereafter, the pin member 20 slides toward the terminal end 11a of the same area while pushing and opening the cam member 10 in the direction b (FIG. 1B). Then, the pin member 20 is moved to the outer edge sliding contact area 11.
When the cam member 10 exceeds the end 11a, the cam member 10 rotates in the direction a with the urging force of the spring member 3, so that the pin member 20 collides with the first pin receiving portion 13 (FIG. 1C).

When the pin member 20 is in contact with the first pin receiving portion 13, the cam member 10 is
When the pressing force on the opening / closing member 1 is released, the pin member 20 moves in the d direction by the urging force of a spring member (not shown), and the first pin receiving portion 13 is moved. get over. At that moment, the cam member 10 rotates in the direction a. However, the pin member 20 immediately collides with the second pin receiving portion 15 to restrict the rotation of the cam member 10 (FIG. 1).
(D)). After that, the pin member 20 attempts to move in the direction d by the urging force of a spring member (not shown), but only slides slightly along the concavely curved locking region 14 of the cam member 10 to form the locking portion. Stopped at 16. This state is a state where the opening / closing member 1 is locked at the closed position.

Next, when the open / close member 1 in the locked state is pressed, the pin member 20 slightly moves in the direction c together with the open / close member 1 and separates from the locking area 14 of the cam member 10. At this time, the cam member 10 rotates in the direction a because the rotation is not restricted by the pin member 20. This rotation is stopped by the pin member 20 colliding with the third pin receiving portion 17 (FIG. 1E). At this time, the moving distance of the pin member 20 is the longest, so that the pin member 20 collides with the third pin receiving portion 17 most vigorously.

Thereafter, the pin member 20 is moved by the urging force of a spring member (not shown) into the guide region 1 of the cam member 10.
While moving in the direction d along with 9, the inclined bottom surface 18 of the cam member 10 is pushed up and separated from the tip end of the cam member 10 (FIG. 1 (f)). Thus, the engagement state between the cam member 10 and the pin member 20 is released, and the opening / closing member 1 can be opened.

As described above, in the lock device of this embodiment, the member 1 can be opened only by pressing the opening / closing member 1. This type of lock device is called a push-open type lock device.

The above operation is performed by the cam member 10 and the pin member 2.
FIG. 3 shows the relative movement between 0 and FIG. That is, the pin member 20 is connected to the outer edge sliding contact area 11 of the cam member 10.
Slides (), collides with the first pin receiving portion 13 from its end 11 a (), subsequently collides with the second pin receiving portion 15 (), and is locked by the locking portion 16. Form a locked state (). Then, with the pressing operation of the opening / closing member, the pin member 20 collides with the third pin receiving portion 17 (), further moves along the guide area 19 and separates from the cam member 10.

Now, in the above-described structure, the lock device of the present embodiment has the first, second,
The third pin receiving portions 13, 15, 17 are characterized in that the soft member 30 is provided so as to protrude. As the soft member 30, it is preferable to use an elastomer (elastomer) having a high elasticity. For example, synthetic rubber, natural rubber, and a synthetic resin material containing these are used. As described above, the soft member 30 is provided in each of the pin receiving portions 13, 15, 17 so that the soft member 30 elastically receives the colliding pin member 20 and absorbs the impact. Therefore, even in the event of a collision, high-pitched hitting noise is not generated, and quietness is maintained, so that a high-grade appearance can be imparted to a storage device such as a glove box to which the device is applied.

As described above, since the cam member 10 is formed of a hard resin, the cam surfaces formed on the side surfaces of the outer edge sliding contact area 11 or the cam groove area 12 are hardly worn. Although the soft member 30 is provided so as to protrude from the cam surface, even when the soft member 30 is worn by long-term use, the hard cam surface receives the pin member 20 and can ensure smooth operation. It is configured as follows. That is, in the present embodiment, as shown in FIG. 2, about half of the side surface of each of the pin receiving portions 13, 15, 17 is
a, and the soft member 30 is provided so as to protrude alongside the cam surface 10a. Therefore,
When the soft member 30 is worn, each of the pin receiving portions 13, 1
Cam surface 1 formed on the side of 5, 17 with half width
The pin member 20 can be received at 0a. The base of the soft member 30 is harder to drop off from the cam member 10 by being embedded inside the side face of each pin receiving part.

The present invention is not limited to the above embodiment. In the above embodiment, the first to third
All of the pin receiving portions 13, 15, 17 of the
However, if necessary, any one of the pin receiving portions 13, 15, and 17 (collision point of the pin member 20) may be selected, and the soft member 30 may be provided only on the selected pin receiving portion. it can. Even in this case, at the place where the soft member 30 is provided, the impact when the pin member 20 collides is absorbed, and the generation of a high-pitched sound is suppressed. However, it is preferable to provide the soft member 30 in the third pin receiving portion 17 that has a long moving distance until the pin member 20 collides, since the impact is particularly large.

On the other hand, in the cam member 10, the pin member 20
The soft member 30 is provided on the entire portion or any region where
May be provided. However, when the soft member 30 is provided in the portion where the pin member 20 slides, the frictional resistance acting on the sliding pin member 20 increases, and the smooth operation may be slightly hindered. Therefore, the soft member 30
Is preferably provided only at a location where the pin member 20 collides.

The cam member 10 may be provided with a soft member on the peripheral surface of the pin member 20 without providing the soft member 30. Specifically, as shown in FIG. 4, a mounting groove 21 is formed in a portion of the pin member 20 that comes into contact with the cam member 10, and an annular soft member 40 is fitted into the mounting groove 21. If the outer peripheral surface is configured to protrude from the outer peripheral surface of the pin member 20, the soft member 40 absorbs an impact at the time of a collision with the cam member 10, and it is possible to prevent occurrence of a tapping sound. In the case where the soft member 40 is provided in the portion that comes into contact with the cam member 10 as described above, the frictional resistance between the soft member 40 and the cam member 10 increases, and the smooth sliding of the pin member 20 is slightly increased. It may be hindered. In such a case,
The annular soft member 40 may be rotatably and loosely fitted in the mounting groove 21 of the pin member 20, whereby the soft member 40 can move smoothly along the cam surface of the cam member 10 while rotating. Becomes

[0026]

As described above, according to the present invention,
Since the soft member is provided at the position where the pin member collides with the cam member or at the position where the pin member comes into contact with the cam member, the impact when the pin member collides with the cam member is absorbed by the soft member, and the tapping sound is generated. Can be prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a plan view showing the configuration and operation of a lock device according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a cam member of the lock device according to the embodiment of the present invention.

FIG. 3 is a plan view showing a cam member of the lock device according to the embodiment of the present invention.

FIG. 4 is a diagram for explaining another embodiment of the present invention;
(A) is a partial cross-sectional front view, and (b) is a perspective view.

[Explanation of symbols]

 1: Opening / closing member 2: Support shaft 3: Spring member 10: Cam member 10a: Cam surface 11: Outer edge sliding contact area 11a: Termination 12: Cam groove area 12a: Inlet 13: First pin receiving part 14: Locking area 14a: terminal end 15: second pin receiving portion 16: locking portion 17: third pin receiving portion 18: bottom surface 19: guide area 20: pin member 21: mounting groove 30: soft member 40: soft member

Claims (4)

[Claims] 1. A storage device including an opening and an opening / closing member that opens and closes the opening, a hard pin member provided on one of the opening side and the opening / closing member, and the other of the opening side and the opening / closing member. And a cam member which is rotatably provided in one direction and is urged to rotate in one direction by urging means. With the opening / closing operation of the opening / closing member, the pin member and the cam member engage and relatively move. And a push-open locking device having a configuration in which the pin member collides with a predetermined portion of a cam surface formed on the cam member during the relative movement thereof. A lock device provided with a soft member. 2. The lock device according to claim 1, wherein the cam member has an outer edge sliding contact area with which the pin member slides, and a first pin receiving member which strikes the pin member beyond the outer edge sliding contact area. Part, a second pin receiving part against which the pin member collides following the first pin receiving part, a locking part for locking the pin member, and the pin member moved from the locking part And a guide region for guiding the pin member, which has collided with the third pin receiving portion, to the outside of the cam member, is formed, and the first to third pin receiving portions are formed. A lock device, wherein a soft member is provided on at least one of the pin receiving portions. 3. The lock device according to claim 1, wherein the cam member is formed of a hard resin material, and the soft member is provided to protrude from a cam surface formed on the cam member. Locking device. 4. A storage device including an opening and an opening and closing member for opening and closing the opening, wherein a hard pin member provided on one of the opening or the opening and closing member, and the other of the opening or the opening and closing member And a cam member which is rotatably provided in one direction and is urged to rotate in one direction by urging means. With the opening / closing operation of the opening / closing member, the pin member and the cam member engage and relatively move. A push-open locking device having a configuration in which the pin member collides with a predetermined portion of the cam member during the relative movement thereof, wherein a soft member is provided at a portion of the pin member that comes into contact with the cam member. A locking device.