JP2591404Y2 - 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 of a key-operated locking device used for a lid for opening and closing various boxes such as an automobile glove box.

[0002]

2. Description of the Related Art As a conventional lock device of this kind, for example, Japanese Utility Model Laid-Open Publication No.
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 portion 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 portion is provided to be vertically movable or rotatable. A connection hole is opened at one end of the operating lever that takes charge of the movement of the lock member, and an eccentric shaft provided on the rear end face of the cylinder lock is loosely fitted in the connection hole, and with rotation of the cylinder lock, By interlocking the operation lever, the other end of the operation 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 and the other end of the operating lever is pressed downward by the pressing claw portion of the knob, the locking member opens the opening of the storage portion by the pressing of the other end of the operating lever. To release the locked state of the striker in the storage portion, thereby opening the lid. Conversely, when the cylinder lock is rotated in the locking direction, the operating lever The other end of the knob moves to a position where it does not interfere with the pressing claw portion of the opening / closing knob.
Since the other end of the operating lever is not pressed downward, the closed and locked state of the lid is ensured.

[0004]

However, in such a conventional locking device, an operating lever for securing the locked / unlocked state is integrally formed of a metal material, and one end of the metal operating lever is provided. The part is simply loosely fitted to the eccentric shaft of the cylinder lock via the connecting hole, so as to prevent the one end side of the operating lever from falling off, a so-called push-on fix or a washer-preventing component such as a washer. , One end of the operating lever had to be connected to the cylinder lock side. For this reason, under the conventional lock device, not only is it difficult to assemble the metal operating lever,
In addition to the problem that the number of parts naturally increases, the metal operating lever must be subjected to a rust-preventive surface treatment, which not only contributes to high costs but also increases the weight of the device itself. There was dislike that it became big. Further, in the conventional lock device, the cylinder lock itself is easily loosened in its own axial direction by the clearance defined between the inner surface of the cylinder lock and the cylinder lock itself, and there is a sufficient risk that the luxury feeling may be impaired. . Accordingly, the present invention is to provide a new lock device that can effectively solve the problems of the conventional device.

[0005]

In order to achieve the above object, the first invention is based on the basic structure of a conventional locking device, in which an operating lever is formed of a synthetic resin material, and the synthetic resin operating lever is formed. The upper locking piece and the lower elastic locking piece are integrally formed at one end of the frame, respectively, and the upper engagement guide wall and the lower engagement guide wall are respectively provided at the rear end side of the cylinder lock holding portion of the frame. Then, the upper engagement piece is slidably engaged with the upper engagement guide wall, and the lower elastic engagement piece is elastically slidably engaged with the lower engagement guide wall. In addition, the second invention adopts a configuration in which a projection that elastically contacts the rear end surface of the cylinder lock is integrally provided on the back surface at one end of the operating lever based on the essential configuration of the first invention.

[0006]

According to the first aspect of the present invention, when the upper locking piece faces the inside of the upper engaging guide wall and one end of the operating lever is pressed against the rear end of the cylinder lock, the lower elastic locking is achieved. At the same time as the piece flexes over the lower engagement guide wall while flexing and automatically elastically engages inside the lower engagement guide wall,
The upper locking piece also automatically engages inside the upper engaging guide wall, so that one end of the operating lever is easily connected to the cylinder lock side. Moreover, in such a connection state, on the upper side, the upper locking piece engages with the upper engagement guide wall, and on the lower side, the lower elastic locking piece engages with the lower engagement guide wall. Prevents one end of the operating lever from falling off, so that one end of the operating lever can be securely attached to the cylinder lock side with a single touch without using any special drop-prevention parts as in the past. Becomes In addition, in particular, in the second invention, in addition to the above, the protrusion provided on the back surface at one end side of the operating lever elastically contacts the rear end surface of the cylinder lock. , The rattling can be effectively prevented even if the cylinder lock itself tries to rattle in its own axial direction.

[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 an automobile glove box. As shown in FIG. 1, the structure is a synthetic resin frame 1 fixed to a lid (not shown).
A cylindrical holding portion 2 also serving as a lock outer case is integrally extended on one side of the frame 1, and a cylinder lock 3 is rotatably fitted in the cylindrical holding portion 2, An opening / closing knob 4 is rotatably supported on the front side of the frame 1, and a U-shaped storage section 1 a for storing a striker provided on a glove box (not shown) side is provided on the rear side of the frame 1. A guide cylinder 1b is formed below the storage section 1a, and a lock member 5 for opening and closing the opening of the storage section 1a is vertically movably supported in the guide cylinder 1b. Is always biased by the spring pressure of the coil spring 6 in a direction to close the opening of the storage portion 1a.

In this embodiment, on the premise of such a basic structure, the operating lever 7 for urging the lock member 5 to move up and down is also integrally formed of a synthetic resin material, and its one end 7a is formed.
The upper end is formed integrally with the side surface of the extension base portion of the one end portion 7a, while the cylinder lock is formed substantially at the center portion of the one end portion 7a. 3, a connecting hole 9 provided in the rear end face of the eccentric shaft 3a for loose fitting.
And a lower elastic locking piece 10 is integrally formed below the one end 7a through a horizontal L-shaped slit 11, and a pin-like projection 12 is formed on a side surface of the lower elastic locking piece 10.
Is provided. Therefore, under the present embodiment, the relationship between the upper locking piece 8 and the lower elastic locking piece 10 is slightly different in the actual formation position, but substantially all of them are on the one end 7a side of the operating lever 7. Are formed in parallel with each other vertically separated from each other.

The other end 7b of the operating lever 7 is connected to the projecting pin 5a of the lock member 5.
At the same time as engaging with the pressing claw 4a protruding from the back side of the opening / closing knob 4, and having the pressing claw 4a of the opening / closing knob 4 closer to the center than the other end 7b.
A configuration is employed in which a concave relief portion 13 that can avoid interference with the airbag is formed. Further, in the present embodiment, as shown in FIG. 2, the bending of the one end portion 7a or the lower elastic locking piece 10 is provided on the back surface near the connection hole 9 and the rear surface at the tip end of the lower elastic locking piece 10. By using small protrusions 14a and 14b as protrusions elastically contacting the rear end surface of the cylinder lock 3, the backlash in the cylindrical holding portion 2 of the cylinder lock 3 is positively reduced.

In addition, in this embodiment, as shown in the figure, upper and lower flange walls 15 and 16 are integrally provided at upper and lower portions of a rear end edge of the cylindrical holding portion 2 into which the cylinder lock 3 is fitted. ,
One end 7a of the operating lever 7 is movably pushed between the upper and lower flange walls 15 and 16, and the upper locking piece 8 is slidably engaged with the upper surface of the upper flange wall 15. Block-shaped upper engagement guide wall 17
The lower elastic locking piece 10 is slidably engaged with the distal end of the lower flange portion 16 integrally with a mountain-shaped lower engagement guide wall 18 which is slidably engaged with the lower flange portion 16. A configuration is employed in which the projection 12 of the lower elastic locking piece 10 is switched and moved on the switching sliding surface 18a of the engagement guide wall 18.

Therefore, in the lock device of the present embodiment, the coil spring 6 and the lock member 5 are supported in the guide tube portion 1b of the frame 1, and the other end 7 of the operating lever 7 is supported.
The notch 19 formed on the side of the guide cylinder 1b on the side b
And the other end 7b is inserted into the protruding pin 5 of the lock member 5.
a, while the upper engaging piece 8 faces the inside of the upper engaging guide wall 17 and the eccentric shaft 3a is loosely fitted into the connecting hole 9 formed in the one end 7a of the operating lever 7. When the one end 7a of the operation lever 7 is pushed between the upper and lower flange walls 15 and 16 of the cylindrical holding portion 2, the lower elastic locking piece 10 of the one end 7a is bent upward through the slit 11 and the lower engagement Overcoming the mating guide wall 18 and automatically elastically engaging the inside of the lower engagement guide wall 18,
Since the upper locking piece 8 also engages with the inside of the corresponding upper engaging guide wall 17, one end 7a of the operating lever 7 is thereby formed.
Can be easily connected to the cylinder lock 3 side.

Further, in such a connected state, as shown in FIG. 3, the upper locking piece 8 is engaged with the upper engaging guide wall 17 on the upper side, and the lower elastic locking is formed on the lower side. Since the piece 10 is engaged with the lower engagement guide wall 18 and the falling off of the one end 7a side of the operating lever 7 is effectively prevented, according to the present embodiment, as in the prior art, a dedicated falling prevention It is possible to securely assemble the one end 7a of the operating lever 7 to the cylinder lock 3 and its holding portion 2 side only by performing a one-touch push-in operation without using any components.

In actual use, when the cylinder lock 3 is rotated in the unlocking direction by a key operation and the lock device is unlocked, as shown in FIGS. In conjunction with this, the operating lever 7 moves to the left in the figure, and the other end 7b of the operating lever 7 is
Then, the opening / closing knob 4 is pulled up against the spring pressure of the return spring 20 from the state shown in FIG. 5 to the state shown in FIG. When the other end 7b of the operating lever 7 is pressed downward by the pressing claw 4a of the knob 4, the lock member 5 descends against the spring pressure of the coil spring 6 in conjunction with the pressing of the other end 7b. Then, since the locked state of the striker 21 in the storage section 1a is released, the opening of the lid is guaranteed. When closing the lid in such an unlocked state, when the lid is moved in the closing direction, the striker 21 lowers the lock member 5 and enters the storage portion 1a from the opened opening. Then, again, as shown in FIG.
Since the striker 21 is locked in the storage portion 1a, the lid can be easily closed in the closed state.

In order to lock the lock device to prevent theft, if the cylinder lock 3 is moved in the opposite locking direction by key operation, as shown in FIGS. In conjunction with the rotation, the operating lever 7 moves rightward in the figure, and this time, the escape portion 13 of the operating lever 7 is located below the pressing claw portion 4a of the opening / closing knob 4, so that In this state, no matter how much the opening / closing knob 4 is pulled up, the pressing claw 4a of the knob 4 merely swings, and the operating lever 7 cannot be pressed downward. Is guaranteed.

Further, in the present embodiment, the cylinder lock 3
When the operating lever 7 is moved in the left-right direction via the eccentric shaft 3a with the rotation of, the upper locking piece 8 and the lower elastic locking piece 10 correspond to the respective engaging guide walls 17 and 18. Since the operation lever 7 slides along the inner side surface, it is possible to ensure a stable movement of the operation lever 7 itself, and in this movement, the projection 12 of the lower elastic locking piece 10 must be surely moved by the lower engagement guide. Since it moves over the mountain-shaped switching sliding surface 18a of the wall 18, a clear sense of moderation is always obtained at the time of climbing over the mountain-shaped switching sliding surface 18a. It is also very easy to check the unlocked state.

In this embodiment, as described above,
Since the small projections 14a and 14b are formed on the back surface near the connection hole 9 and the back surface at the tip end of the lower elastic locking piece 10, the small projection 14a on the connection hole 9 side is attached to the rear end surface of the cylinder lock 3 in the locked state. Be sure to make elastic contact with the lower elastic locking piece 1
Since the small projection 14b on the 0 side is always in elastic contact with the rear end face of the cylinder lock 3, the cylinder lock 3 itself can be formed by the clearance defined between the cylinder lock 3 and the inner surface of the cylindrical holding portion 2, for example. Even if an attempt is made to rattle in the axial direction, this rattling can be effectively prevented.

[0017]

As described above, according to the present invention, by adopting the above-mentioned structure, the upper locking piece and the lower elastic locking piece integrally formed on the operating lever side made of synthetic resin are combined with the cylinder lock holding section side. One end of the operating lever can be securely connected without falling off to the cylinder lock side only by individually engaging the upper engaging guide wall and the lower engaging guide wall provided on the One end of the operating lever can be attached to the cylinder lock with one touch without using any parts. In addition, the fact that the operating lever is formed of a synthetic resin material has the advantage that the upper locking piece and the lower elastic locking piece can be attached by utilizing the flexibility of the shape, as well as the conventional technique. Compared to a metal operating lever, it can greatly contribute to the weight and cost reduction of the lock device itself. Also, regarding the countermeasure against rattling of the cylinder lock, the projection provided on the back surface at one end side of the operating lever resiliently contacts the rear end face of the cylinder lock, so that rattling in the axial direction of the cylinder lock can be effectively prevented. Unlike the conventional case, there is no fear of deteriorating the sense of quality, and improvement in quality can be expected.

[Brief description of the drawings]

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

FIG. 2 is a perspective view of a main part showing a back surface structure on one end side of an operation lever.

FIG. 3 is a perspective view showing the whole assembled state of the lock device from the rear side.

FIG. 4A is a rear view showing an unlocked state of the lock device,
(B) is the same top view.

FIG. 5 is a sectional view showing a closed state of the lid.

FIG. 6 is a cross-sectional view showing an opened state of a lid.

FIG. 7A is a rear view showing the locked state of the lock device,
(B) is the same top view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Holding part of cylinder lock 3 Cylinder lock 3a Eccentric shaft 4 Opening / closing knob 4a Pressing claw part 5 Lock member 7 Operating lever 7a One end of operating lever 7b Other end of operating lever 8 Upper locking piece 10 Lower elastic member Stop piece 14a Small projection (projection) 14b Small projection (projection) 17 Upper engaging guide wall 18 Lower engaging guide wall 21 Striker

Continuing from the front page (72) Nobuo Honda 2-1910 Nisshincho, Omiya City, Saitama Prefecture Kansei Corporation (72) Inventor Seiji Sawatani 51 Iwaicho, Hodogaya-ku, Yokohama, Kanagawa ) Inventor Tomoyuki Hosoya 51 Iwai-cho, Hodogaya-ku, Yokohama-shi, Kanagawa Prefecture Inside Kato Hajo Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) E05B 65/12-65/42

Claims (2)

(57) [Scope of request for utility model registration] 1. A frame with a cylinder lock fixed to a lid side, an opening / closing knob rotatably supported by the frame, and a lock member provided on a box side for locking a striker to the frame side. A lid locking device comprising an operating lever having one end connected to the eccentric shaft of the cylinder lock and the other end interfering with the pressing claw of the opening / closing knob at the time of unlocking to unlock the locking member. The operating lever is formed of a synthetic resin material, and an upper locking piece and a lower elastic locking piece are integrally formed on one end side of the synthetic resin operating lever, respectively, while the cylinder lock holding section of the frame is provided. An upper engagement guide wall and a lower engagement guide wall are respectively provided on the end side, the upper engagement piece is slidably engaged with the upper engagement guide wall, and a lower elastic engagement is provided on the lower engagement guide wall. Elastic to slide pieces A lid locking device configured to be engaged. 2. The lid locking device according to claim 1, wherein a projection elastically contacting the rear end surface of the cylinder lock is provided integrally on the back surface at one end of the operating lever.