JPH0350228Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a door lock key cylinder used in automobiles and the like.

[Conventional technology]

Conventional door lock key cylinders, for example,
As shown in Figures A and B, a flat key cylinder lever 1 is attached to the tip of a key cylinder 11.
A door lock key link 14 is connected to the key cylinder 11 via a snap 13, and a key plate (not shown) is inserted into the key cylinder 11 to move the key cylinder lever 12 in the direction of arrow A (unlock direction) or arrow B (lock direction). The door lock key link 14 is actuated by rotating the door lock in the direction of arrow C to unlock or lock the door lock (not shown) in the direction of arrow C.
Located within a door panel (not shown).

By the way, the key cylinder lever 12 can be rotated by a device other than the key plate. For example, by inserting a foreign object through the gap between the door glass and the door outer panel, the key cylinder lever 12 or the snap 13 and key link 14 connected thereto can be rotated. , as shown by the arrows ○A, ○B, ○C (Fig. 4B) with foreign objects.
By pressing strongly, key cylinder lever 1
2 may rotate in the direction of arrow A and the door lock may be unlocked, which is not desirable from the viewpoint of preventing theft of the automobile.

A method of preventing the door lock from being unlocked due to the pressing of the key cylinder lever etc. by such foreign objects is disclosed in U.S. Pat. No. 57-181865 and U.S. Pat.
Disclosed in No. In the former type, a protector is placed around the key cylinder plate (key cylinder lever) so that even if a foreign object is inserted, the key cylinder plate lever cannot be rotated. The latter is a reinforcing plate bent into a roughly U-shape and interposed between the outside handle and the key cylinder to prevent the key cylinder from swinging up and down, thereby preventing the door lock from unlocking. be.

[The problem that the idea aims to solve]

The conventional techniques described in the above-mentioned publications have the disadvantage that the former requires a new protector and the latter requires a new reinforcing plate, which requires extra cost and man-hours.

An object of the present invention is to provide a door lock key cylinder with a simple structure that prevents the door lock from being unlocked due to foreign objects pressing the key cylinder lever or the like.

[Means to solve the problem]

The door lock key cylinder of the present invention that achieves the above object is a door lock key cylinder in which a plate-shaped key cylinder lever is attached to the tip of the key cylinder, and a door lock key link is connected to the key cylinder lever via a snap. , the key cylinder lever is bent so as to form a dogleg shape when viewed from a direction perpendicular to the axial direction of the key cylinder, and the upper bent part is located above the connecting part between the snap and the door lock key link. It is characterized by

[Effect]

Even if you try to push down the key cylinder lever by inserting a foreign object through the gap between the door glass and the door outer panel, the tip of the foreign object will hit the upper bent part and the foreign object will escape in a direction parallel to the bent part, making it impossible to push down the key cylinder lever. Can not. The reason for this is that the foreign object is a wire or a thin plate, and there is a considerable distance from the gap between the door glass and the door outer panel to the key cylinder lever.
This is because it takes considerable force to push down the key cylinder lever. In addition, since the bent part of the key cylinder lever covers the upper part of the snap and door lock key link, foreign objects will be blocked by the bent part and will not reach the snap and door lock key link. Keylinks are never pressed. Therefore, it is impossible to unlock the door lock by inserting a foreign object, and theft of the automobile is prevented.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

1A and 1B are a front view and a side view of a door lock key cylinder according to a first embodiment of the present invention.

In this door lock key cylinder, a door lock key link 4 is connected via a snap 3 to a plate-shaped key cylinder lever 2 attached to the tip of a key cylinder 1, and a key plate (not shown) is connected to the key cylinder 1. ), and then move the key cylinder lever 2 in the direction of arrow A (unlock direction).
Alternatively, by rotating in direction B (lock direction), the door lock key link 4 is actuated to unlock or lock a door lock (not shown) located in the direction of arrow C.

In this embodiment, the key cylinder lever 2 is bent to form a dogleg shape when viewed from the direction perpendicular to the axial direction of the key cylinder 1, and the upper bent portion 2a connects the snap 3 and the door lock key link 4. It is located above the connecting part.

Therefore, in this embodiment, even if an attempt is made to push down the key cylinder lever 2 by inserting a foreign object through the gap between the door glass and the door outer panel, if the tip of the foreign object hits the bent portion 2a, the foreign object will fall flat as shown by arrow P. The key cylinder lever 2 cannot be pushed down because the key cylinder lever 2 escapes parallel to the key cylinder lever 2. Furthermore, since the bent portion 2a of the key cylinder lever 2 covers the upper part of the snap 3 and the door lock key link 4, foreign objects are blocked by the bent portion 2a and do not reach the snap 3 and the door lock key link 4. This prevents the snap 3 and door lock key link 4 from being pressed. Therefore,
It is impossible to unlock the door lock by inserting a foreign object into the gap between the door glass and the door outer panel.
Auto theft is prevented.

FIG. 2 is a front view of a door lock key cylinder according to a second embodiment of the present invention.

According to the first embodiment, the key cylinder lever 2
Since the bent portion 2a is located above the snap 3, it may be difficult to attach the door lock key link 4 to the snap 3 by hand. Therefore, in this embodiment, a notch 2b is formed in the middle of the bent portion 2a of the key cylinder lever 2. This notch 2b allows the finger of the hand to be easily inserted, making it easier to connect the snap 3 and the door lock key link 4, thereby improving work efficiency. Further, this notch 2b serves to prevent the snap 3 from rotating.

3A and 3B are a front view and a side view of a door lock key cylinder according to a third embodiment of the present invention.

In this embodiment, a resin coating 5 is applied along the upper end of the bent portion 2a of the key cylinder lever 2.

In the case of the embodiment described in FIGS. 1A and 1B, the key cylinder lever 2 is large, so when the key cylinder lever 2 is assembled into the door, it may come into contact with the body and damage the body. According to the resin coating 5, the risk of damage to the body can be avoided.

[Effect of idea]

As explained above, in the present invention, the key cylinder lever is bent into a dogleg shape, and the upper bent part of the key cylinder lever is located above the connecting part between the snap and the door lock key link. This simple structure makes it impossible for the key cylinder lever to be rotated by foreign objects, and has the effect of preventing vehicle theft.

[Brief explanation of the drawing]

1A and 1B are front and side views of a door lock key cylinder according to a first embodiment of the present invention, FIG. 2 is a front view of a door lock key cylinder according to a second embodiment of the present invention, and FIG. Figures A and B are a front view and a side view of a door lock key cylinder according to a third embodiment of the present invention, and Figures 4A and B are a front view and a side view of a conventional door lock key cylinder. DESCRIPTION OF SYMBOLS 1...Key cylinder, 2...Key cylinder lever, 2a...Bent part, 2b...Notch part, 3
...Snap, 4...Door lock key link, 5
...Resin coating.

Claims (1)

[Claims for Utility Model Registration] 1. A door lock key cylinder in which a plate-shaped key cylinder lever is attached to the tip of the key cylinder, and a door lock key link is connected to the key cylinder lever via a snap, comprising: The cylinder lever is bent to form a dogleg shape when viewed from a direction perpendicular to the axial direction of the key cylinder, and the upper bent portion thereof is located above the connection portion between the snap and the door lock key link. A door lock key cylinder featuring: 2. The door lock key cylinder according to claim 1, wherein a notch is formed in the center of the bent portion of the key cylinder lever. 3. The door lock key cylinder according to claim 1 or 2, wherein the upper end of the bent portion of the key cylinder lever is coated with a resin.