JP3141305B2 - Lid locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a key-operated locking device used for a lid for opening and closing a glove box and the like of an automobile.

[0002]

2. Description of the Related Art A conventional locking device of this type is disclosed in, for example, Japanese Utility Model Laid-Open Publication No. Sho 62-49569 and Japanese Utility Model Laid-Open Publication No. 1-151.
No. 571 exists. Although the conventional locking device has some structural differences, it basically includes a frame with a cylinder lock fixed to the lid of the glove box, and pivots an opening / closing knob on the front side of the frame. A storage recess for supporting the striker is provided on the rear side of the frame for storing the striker provided on the box side, and a lock member for opening and closing the opening of the storage recess is provided to be vertically movable or rotatable. A connecting hole is opened at one end of the operating lever for promoting the movement of the lock member, and an eccentric shaft provided at the rear end of the cylinder lock is loosely fitted into the connecting hole, and the operation is performed with the rotation of the cylinder lock. By interlocking the lever, the other end of the operating lever can be moved to a position where it interferes with a pressing claw provided on the back surface of the opening / closing knob and a position where it does not interfere.

In actual use, the cylinder lock is rotated in the unlocking direction by key operation to move the other end of the operating lever to a position where it can interfere with the pressing claw of the opening / closing knob. When the opening / closing knob is pulled up against the urging spring pressure and the other end of the operating lever is pressed downward by the pressing claw portion of the knob, the locking of the locking lever is performed by the pressing of the other end of the operating lever. Since the member moves in the direction of opening the opening of the storage recess against the biasing spring pressure and automatically releases the locked state of the striker in the storage recess, the opening of the lid is ensured. . When the cylinder lock is rotated in the locking direction, the other end of the operating lever moves to a position where it does not interfere with the pressing claw of the opening / closing knob.
In this state, no matter how much the opening / closing knob is pulled up, the pressing claw portion of the knob swings and the other end of the operating lever is not pressed downward, so that the closed and locked state of the lid is reliably ensured.

[0004]

Therefore, in such a conventional locking device, it is possible to ensure the locked and unlocked state by the operation of the above-mentioned operating lever, and to open and close the locking device. The knob swing-allowing structure has the advantage that the opening / closing knob, the lock member, and the like can be effectively prevented from being damaged by an erroneous operation in the closed and locked state.
For this purpose, in addition to a relatively long operation lever, a lock member for opening and closing the opening of the storage recess, a spring means for constantly urging the lock member in a direction to close the opening of the storage recess, and the like are required. As a result, the number of parts naturally increases, and the assembling work becomes difficult and the cost becomes high.In addition, the operating lever is attached to the rear side of the frame. Since a guide portion that allows forward and reverse movement, a holding portion that integrally holds the lock member and its biasing spring means, and the like must be separately formed, the increase in the number of components described above causes However, there has been a problem in that the size of the device has naturally increased, and it is not possible to meet the demand for miniaturization at present.

[0005]

SUMMARY OF THE INVENTION The present invention has been developed in order to effectively solve the problems of the conventional locking device, and includes a frame with a cylinder lock fixed to a lid of a box, and a frame attached to the frame. On the premise of a lid locking device including a rotatable opening / closing knob and a locking means detachably engaging with the striker, a first locking means is provided on the opening / closing knob side, and a first locking means is provided on the cylinder lock side. While the two-lock means is provided, the striker is integrally formed of a synthetic resin as an independent unit part, and a large U-shaped first striker portion and a small U-shaped second striker portion are temporarily attached to the mounting substrate. The first locking means is formed on the first striker portion of the striker when the cylinder lock is unlocked, and the striker is locked when the cylinder lock is locked. Adopting a configuration in which the action of the second locking means to the secondary striker.

[0006]

Therefore, according to the present invention, the first lock which is interlocked with the opening / closing knob is simply provided on the opening / closing knob side without using an independent operating lever, a lock member and its urging spring means as in the prior art. Means is provided on the cylinder lock side, and second lock means is provided on the cylinder lock side. When the cylinder lock is unlocked, the first lock means is provided on the box side striker in conjunction with the operation of the opening / closing knob. The opening and closing of the normal lid is ensured simply by acting on the lid.In the locked state of the cylinder lock, regardless of the operation of the opening / closing knob, only the second locking means acts on the striker to open the lid. Since the closed and locked state is ensured, the number of components and the number of assembling steps can be reduced, and the device itself can be greatly reduced in size.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to an embodiment shown in the drawings. The lock device according to the embodiment is also developed as a lock device for a lid provided in a glove box of an automobile. The basic structure, as shown in FIG. 1, includes a synthetic resin frame 1 fixed to a lid (not shown), supports a cylinder lock 2 on one side of the frame 1, and has a front surface of the frame 1. It is assumed that the opening / closing knob 3 is rotatably mounted on the side, but is characterized by using an independent operating lever, a lock member and its urging spring means, etc. as in the conventional device. Instead, the first lock claw 4 provided on the opening / closing knob 3 side and the second lock claw 12 provided on the cylinder lock 2 side are made to act organically on the striker 20 described below, Lid sure Lies in the fact that to ensure the lock state and the locked state.

Therefore, first, the opening / closing knob 3 and the frame 1
In the present embodiment, as shown in the figure, a lateral J-shaped first lock claw 4 that engages from below with a first striker portion 22 described below is provided at the center of the back surface of the opening / closing knob 3 as shown in the figure. And a pair of connecting holes 5 are integrally formed on both side edges thereof, and a window 1a is formed in the center of the frame 1 so that the first lock claw 4 faces rearward. Then, as shown in FIG. 2, on the upper front surface of the window 1a,
A pair of connecting shafts 6, 6 rotatably fitted in the respective connecting holes 5 of the knob 3, and a pair of mounting shafts for mounting a torsion spring 7, which constantly urges the first lock claw 4 upward. A lock wall 9 which forms a storage recess of the first striker portion 22 in cooperation with the first lock claw 4 is integrally formed on the upper rear surface of the window portion 1a. In addition, a stopper wall 10 for restricting the downward rotation of the first lock claw 4 is formed on the lower rear surface of the window 1a. As shown in FIG. 3, a damper rubber 11 having a bendable shape is fixed to the lower surface side of the lock wall 9 so as to prevent the generation of an engagement sound with the first striker portion 22 and the rattling. A configuration to prevent this is also adopted. Therefore, the lock device of the present embodiment obtains a state in which the torsion spring 7 is mounted on the pair of mounting shafts 8, 8, and the connection holes 5 of the opening / closing knob 3.
The opening / closing knob 3 can be easily attached to the front side of the frame 1 simply by fitting the pair of connecting shafts 6 to the shaft 1, and the turning operation of the first lock claw 4 interlocked with the operation of the opening / closing knob 3. Locking and unlocking of the first striker unit 22 can be automatically performed only by the user.

Next, the cylinder lock 2 will be described. In this embodiment, the L which engages a second striker portion 23 described below from below with the edge of the rotor rear wall 2a of the cylinder lock 2 is described below.
And a regulating arm 14 colliding with a stopper 13 on the side of the frame 1 is provided integrally with the rear wall 2a at another portion of the rear wall 2a. Guide wall 1 provided on the frame 1 side at the base of
The elastic piece 16 that slides on the switching surface 5 with the depression is formed. Therefore, the lock device of this embodiment is
When the cylinder lock 2 is unlocked, the second lock claw 12 comes into contact with the stopper portion 13 as shown in the figure, but when this is rotated in the locking direction, the regulating arm 14 Until the contact, the second lock claw 12 moves about 90 degrees in the direction of the first lock claw 4 in conjunction with the key operation.
In addition to ensuring rotation, the distal end of the elastic piece 16 moves over the switching surface of the guide wall 15 in accordance with the rotation of the cylinder lock 2 due to the key operation. , A clear sense of moderation is obtained, and the feeling of key operation can be improved.

Finally, the striker 20 fixed to a box (not shown) will be described. In this embodiment, unlike the conventional metal type, the striker 20 itself is connected to one independent unit. A large U-shaped first striker portion 22 for engaging the first lock claw 4 is integrally formed on the front surface side of the mounting board 21 as a component, and the first striker portion 22 U-shaped second striker portion 23 that engages the second lock claw 12 on the side surface of
Are integrally formed, and a pair of temporary fixing legs 24 are integrally provided on the rear surface side of the mounting substrate 21 so that the mounting substrate 21 of the striker 20 is connected via the respective temporary fixing legs 24. Is temporarily fixed to the box side, and then, by using the through holes 25 of the mounting board 21, it is possible to permanently fix the box to the box with a screw member.

Accordingly, the lock device of the present embodiment supports the cylinder lock 2 as shown in FIG. 4 because the independent operating lever, the lock means and the urging spring means are not required as in the prior art. A state in which the torsion spring 7 is mounted on the pair of mounting shafts 8.8 of the frame 1 is obtained.
By merely forcibly fitting the connection shaft portions 6 corresponding to the respective connection holes 5 of the opening / closing knob 3 while facing the inside of the window portion 1a, the assembly on the frame 1 side is quickly completed, and ,
Although not specifically shown, the mounting substrate 2 of the striker 20 is not shown.
Also, when the fixing board 1 is fixed to the box side, the mounting board 21 can be easily fixed to the corresponding portion on the box side by using the above-described temporary fixing legs 24. Then, the assembling work and the fixing work are greatly simplified.

In actual use, when the cylinder lock 2 is rotated in the unlocking direction by key operation and the lock device is unlocked, the rotation of the cylinder lock 2 is interlocked with the rotation of the cylinder lock 2 as shown in FIG. Then, the second lock claw 12 moves to a position where it comes into contact with the stopper 13, and the second striker 23
Then, as shown in FIG. 5A, when the opening / closing knob 3 is pulled up against the spring pressure of the torsion spring 7 as shown in FIG. Since one lock claw 4 rotates downward to release the locked state with respect to the first striker portion 22, the opening of the lid is assured. Also, when the thin lock 2 is rotated in the unlocking direction by a key operation, the above-described distal end of the elastic piece 16 moves over the switching surface of the guide wall portion 15, so that a clear sense of moderation is achieved. However, such a phenomenon is the same even when the cylinder lock 2 is rotated in the locking direction. When closing the lid in such an unlocked state, when the lid is moved in the closing direction, the first striker portion 22 forcibly rotates the first lock claw 4 downward, and As shown in FIG. 5B, the first striker portion 22 is again inserted into the storage recess defined by the first lock claw 4 and the lock wall 9 from the opened opening. Therefore, the closed state of the lid can be easily obtained.

In order to lock the locking device for theft prevention, the cylinder lock 2 is rotated in the opposite locking direction by a key operation, as shown in FIGS. In conjunction with the rotation of the stopper, the regulating arm 14
Until the second lock claw 12 collides with the second striker portion 2.
In this state, the opening / closing knob 3 is pulled up, and the first locking claw 4 of the knob 3 is rotated downward, as shown in FIG. Even if the lock state of the lock device 22 is released, the locking state of the lock device itself is still ensured by the engagement of the second lock claw 12 with the second striker portion 23, so that the lid is accidentally opened. Not at all. Moreover, in the closed and locked state of the lid, even in this embodiment,
Since the swing of the opening / closing knob 3 is guaranteed, it goes without saying that there is no fear that the opening / closing knob 3 or the first lock claw 4 or the like is damaged by an erroneous operation in the closed and locked state.

Further, in the embodiment, the second lock claw 14 is formed integrally with the rotor rear wall 2a of the cylinder lock 2, but the present invention is not limited to this, and the second lock claw is not limited to this. It is also possible to form the cylinder lock 12 separately from the cylinder lock 2 and to fix it to the rotor rear wall 2a of the cylinder lock 2 so that the cylinder lock 2 can be interlocked with the rotation of the cylinder lock 2 later.

[0015]

As described above, according to the present invention, by adopting the above-described structure, the lid can be securely unlocked and locked without using an independent operating lever, a lock member and its urging spring means as in the prior art. Since the condition can be guaranteed, the number of parts and the number of assembling steps associated with it can be reduced as compared with the conventional device, which can contribute to cost reduction, and in particular, the depth of the device itself can be reduced. This can greatly contribute to miniaturization.

[Brief description of the drawings]

FIG. 1 is a partially exploded perspective view of a lid locking device according to an embodiment of the present invention, as viewed from the rear side.

FIG. 2 is a perspective view showing only a frame from the front side.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a perspective view showing an assembled state of the frame side from the back side.

5A is a cross-sectional view showing an unlocked state of the first striker portion, and FIG. 5B is a cross-sectional view showing the locked state.

FIG. 6 is a plan view showing a locked state in which a second lock claw acts on a second striker portion.

FIG. 7 is a sectional view taken along the line BB of FIG. 6;

[Explanation of symbols]

 Reference Signs List 1 frame 2 cylinder lock 3 opening / closing knob 4 first lock claw (first lock means) 12 second lock claw (second lock means) 20 striker 22 first striker section 23 second striker section

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Seiichi Sato 51 Kaori-Hatsujo Co., Ltd., 51 Iwai-cho, Hodogaya-ku, Yokohama-shi, Kanagawa Prefecture -130967 (JP, U) Actual opening 51-65438 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E05B 65/12 B60R 7/06 E05C 21/00

Claims (1)

(57) [Claims] 1. A lock for a lid comprising: a frame with a cylinder lock fixed to a lid of a box; an opening / closing knob rotatably mounted on the frame; and locking means for removably engaging the striker. In the device, the first locking means is provided on the opening / closing knob side, and the second locking means is provided on the cylinder lock side, while the striker is integrally formed of a synthetic resin as an independent unit component, and is attached to the mounting substrate. A U-shaped first striker portion, a small U-shaped second striker portion and a temporary fixing leg are formed, and when the cylinder lock is unlocked, the first lock with respect to the first striker portion of the striker. Wherein the second locking means acts on the second striker portion of the striker when the cylinder lock is locked. Equipment.