JP2590972Y2 - 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 lock device of a key operation type used for a lid for opening and closing a glove box of an automobile and the like.

[0002]

2. Description of the Related Art As a conventional lock device of this type, there is, for example, one disclosed in Japanese Utility Model Publication No. 4-8205. Although not specifically shown, the conventional locking device includes a frame with a cylinder lock fixed to a lid of a glove box, and an opening / closing knob is pivotally supported on the front side of the frame so as to be rotatable. A storage recess for storing a striker provided on the box side is formed on the rear surface side, and a lock member for opening and closing the opening of the storage recess is provided so as to be movable up and down, while an operation lever for promoting downward movement of the lock member is provided. Connect the base end side to the eccentric shaft provided at the rear end of the cylinder lock,
By operating the operating lever in conjunction with the rotation of the cylinder lock, the operating end of the operating lever can be moved to a position where it interferes with a joint pin provided on the lock member 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 working end of the operating lever to a position where it can interfere with the joint pin of the lock member, and then open and close the lock. When the knob is pulled up against the spring pressure of the return spring, and the operating lever is pressed downward by the pressing claw portion provided on the rear surface of the knob, the locking end is pressed by the working end of the operating lever against the joint pin. Since the member moves downward in the direction of opening the opening of the storage recess and automatically releases the locked state of the striker in the storage recess, the opening of the lid is ensured. Also, when the cylinder lock is rotated in the opposite locking direction, the working end of the operating lever moves to a position where it does not interfere with the joint pin of the lock member. Even if the working end is pressed downward, the lock member does not move downward due to the non-interference state, whereby the closed and locked state of the lid is ensured.

[0004]

However, in the conventional lock device, when unlocking, the joint pin of the lock member which receives the pressing force of the operating lever is placed on the rear surface of the lock member in a state perpendicular to the frame. The rear end is inevitably bulged by the joint pin and the operating lever, because the joint end and the operating lever are acted on the joint pin extending backward. However, there is a structural problem that the size increases in the depth direction. It goes without saying that the same problem is caused even if the joint pin is protruded from the front surface of the lock member. Furthermore, the engagement relationship between the working end of the operating lever and the joint pin of the lock member becomes complicated and cannot be assembled with simple mounting means.

[0005]

SUMMARY OF THE INVENTION The present invention has been developed to effectively solve the problems of the conventional lock device, and includes a frame with a cylinder lock fixed to a lid side,
An opening / closing knob rotatably attached to the frame;
A vertically movable lock member for locking the striker provided on the box side, and a base end portion connected to the eccentric shaft of the cylinder lock, and the working end portion interferes with the pressing claw portion of the opening / closing knob at the time of unlocking. Assuming a lid locking device including an operating lever for releasing a locked state of the lock member, a joint pin parallel to the frame is protruded from a side surface of the lock member, and the joint pin extending to the side is provided with the operating member. A configuration is employed in which the working end of the lever is engaged from the rear.

[0006]

[Function] Therefore, in the present invention, by key operation,
When the cylinder lock is rotated in the unlocking direction and the locking device is unlocked, the working end of the operating lever moves to a position where it interferes with the pressing claw of the opening / closing knob in conjunction with the rotation of the cylinder lock. I do. Then, after that, the opening / closing knob is pulled up and the operating end of the operating lever is pressed downward by the pressing claw portion of the knob, and at the same time, the operating end of the operating lever presses the joint pin downward. Since the locked state of the lock member with respect to the striker is released, the opening of the lid is reliably ensured. If the cylinder lock is rotated in the opposite locking direction, the working end of the operating lever moves to a position where it does not interfere with the pressing claw of the opening / closing knob in conjunction with the rotation of the cylinder lock. Therefore, in this state, the operating end of the operating lever cannot be pressed downward no matter how much the opening / closing knob is pulled up, thereby ensuring the locked state of the locking device.

In the present invention, the joint pin of the lock member receiving the pressing force of the operating lever in the unlocked state is protruded from the side surface of the lock member in a state parallel to the frame. The structure that the working end of the operating lever is engaged with the joint pin extending toward the rear from the rear is adopted, so that the rear side or the front side of the lock member does not swell due to the presence of the joint pin and the operating lever as in the related art. Thus, it is possible to sufficiently reduce the size of the apparatus itself in the depth direction. Since the size of the device itself can be reduced, the thickness of the glove box lid and the like can be reduced. Further, simply by engaging the operating lever from the back side to the frame side, the operating lever is mounted on the frame, so that simple mounting can be sufficiently performed.

[0008]

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 includes a synthetic resin frame 1 fixed to a lid (not shown), and a tubular holding portion 2 is integrally extended on one side of the frame 1. A cylinder lock 3 is rotatably fitted in the cylindrical holding portion 2, and an opening / closing knob 4 is provided on the front side of the frame 1.
Is rotatably mounted, and a U-shaped storage recess 5 for storing a striker provided on a glove box (not shown) side is formed on the rear surface side of the frame 1, and a guide is provided below the storage recess 5. A cylindrical member 6 is formed, and a lock member 7 for opening and closing the opening of the storage recess 5 is supported in the guide cylinder 6 so as to be vertically movable, and the lock member 7 is always held by the spring pressure of the coil spring 9. Is configured to be urged in a direction to close the opening.

In this embodiment, on the premise of such a basic structure, a joint pin 8 parallel to the frame 1 is integrally protruded from a side surface of the lock member 7, unlike the conventional one, in contrast to the conventional one. On the other hand, with respect to the operating lever 10 that promotes the downward movement of the lock member 7,
A connecting hole 11 for loosely fitting an eccentric shaft 3a provided at the rear end of the cylinder lock 3 is opened, and an elastic locking piece 12 having a pin 12a at a lower portion of the base end 10a is integrally formed through a slit 13. An interference portion 14 formed on the working end portion 10b and interfering with the pressing claw portion 4a protruding from the rear surface of the opening / closing knob 4, and an escape portion 15 capable of avoiding interference with the pressing claw portion 4a The operating end 10b of the operating lever 10 is always engaged with the joint pin 8 provided on the side surface of the lock member 7 from above. For this reason, the lock member 7 itself is prevented from being unnecessarily swelling on the rear surface side or the front surface side due to the presence of the joint pin 8 and the operation lever 10.

In addition, in this embodiment, as shown in the drawing, upper and lower guide walls 16 and 17 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. A stopper wall having a configuration in which the base end portion 10a of the operating lever 10 is movably pushed between the upper and lower guide walls 16 and 17, and a mountain-shaped switching sliding surface 18a at the distal end portion of the lower guide wall 17. The elastic locking piece 12 of the operating lever 10 is elastically locked inside the stopper wall 18, and the pin 12 a of the elastic locking piece 12 is switched to the switching wall of the stopper wall 18. A configuration in which switching movement is performed on the moving surface 18a is employed.

Therefore, in the lock device of the present embodiment, the coil spring 9 and the lock member 7 are supported in the guide tube portion 6 of the frame 1, and the guide member 6 is laterally inserted from the notch 6a. Operating lever 10 to joint pin 8 facing
Of the cylindrical holding part 2 while the eccentric shaft 3a is loosely fitted in the connecting hole 11 formed in the base end 10a of the operating lever 10 in a state where the working end 10b is engaged from behind. If the proximal end 10a of the operating lever 10 is simply pushed in between the walls 16 and 17, the elastic locking piece 12 of the proximal end 10a bends inward through the slit 13 and rides over the stopper wall 18 so that the stopper wall 18 As shown in FIGS. 2 and 3, the base end 10a of the operation lever 10 can be assembled into the cylinder lock 3 and the holding portion 2 thereof by one-touch operation.

In actual use, the cylinder lock 3 is rotated in the unlocking direction by a key operation, and the lock device is unlocked, as shown in FIG.
In conjunction with the rotation of the lever, the operating lever 10 moves leftward in the figure, and the interference portion 14 of the operating lever 10 moves below the pressing claw portion 4a of the opening / closing knob 4, as shown in FIG. It will be. Therefore, after that, as shown in FIG.
Is raised against the spring pressure of the return spring 19,
An interference portion 14 of the operating lever 10 is
Is pressed downward, at the same time, on the side of the lock member 7, the operating end 10b of the operating lever 10 presses the joint pin 8 extending laterally downward. Therefore, thereafter, as in the conventional case, the lock member 7 moves down against the spring pressure of the coil spring 9 to automatically release the locked state with respect to the striker 20 in the storage recess 5. , 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 20 forcibly lowers the lock member 7 and the opened opening is opened. Then, the striker 20 is again locked in the storage recess 5 by the lock member 7, whereby the closed state of the lid can be easily obtained.

When the lock device is locked to prevent theft, the cylinder lock 3 can be rotated in the opposite locking direction by a key operation, as shown in FIG.
In conjunction with the rotation of, the operating lever 10 moves rightward in the drawing, and the relief portion 15 of the operating lever 10 is located below the pressing claw portion 4a of the opening / closing knob 4 this time. In this state, as shown in FIG. 7, the operating end 10b of the operating lever 10 cannot be pressed downward no matter how much the opening / closing knob 4 is pulled up, thereby ensuring the locked state of the locking device. There is no worry about the lid being accidentally opened.

Further, in this embodiment, the cylinder lock 3
When the operating lever 10 is moved in the left-right direction via the eccentric shaft 3a with the rotation of the shaft, the pin 12a of the elastic locking piece 12 must be
Therefore, when moving over the mountain-shaped switching sliding surface 18a, a clear sense of moderation is obtained, and it is easy to confirm the locked state and the unlocked state.

[0016]

[Effects of the Invention] As described above, the present invention provides
A joint pin of a lock member that receives the pressing force of the operation lever is protruded from a side surface of the lock member in a state parallel to the frame, and a working end of the operation lever is engaged with the joint pin extending laterally from behind. Since it is characterized by making it possible to effectively prevent the rear side or the front side of the lock member from swelling due to the presence of the joint pin and the operating lever, as in the related art,
The miniaturization of the apparatus itself in the depth direction 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 shown from the rear side.

FIG. 2 is a front view showing the assembled state of the lock device, partially cut away, as viewed from the rear side.

FIG. 3 is a perspective view showing the assembled state of the lock device, partially cut away, as viewed from the rear side.

FIG. 4 is a plan view showing the unlocked state of the lock device with a part cut away.

FIG. 5 is a cross-sectional view showing a state where an opening / closing knob is pulled up in an unlocked state.

FIG. 6 is a plan view showing a locked state of the lock device with a part cut away.

FIG. 7 is a sectional view showing a state in which the opening / closing knob is pulled up in a locked state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 3 Cylinder lock 3a Eccentric shaft 4 Opening / closing knob 4a Pressing pawl 7 Lock member 8 Joint pin 10 Operating lever 10a Base end of operating lever 10b Operating end of operating lever 20 Striker

Continued on the front page (72) Inventor Minoru Mitano 2 Takaracho, Kanagawa-ku, Yokohama, Kanagawa Prefecture Nissan Motor Co., Ltd. (58) Field surveyed (Int.Cl. ⁶ , DB name) E05B 65/19

Claims (1)

(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 attached to the frame, and a vertically movable lock member provided on a box side for locking a striker, A lid locking device comprising: a base end connected to an eccentric shaft of the cylinder lock; and an operating end which interferes with a pressing claw of an opening / closing knob when unlocked to release a locked state of the lock member. A joint pin parallel to the frame protrudes from a side surface of the lock member, and a working end of the operating lever is engaged with the joint pin extending laterally from the rear. Lid locking device.