JPS628587B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a knob lock provided on an opening/closing lid of a glow box or the like in a driver's seat of an automobile.

As a conventional lock structure, for example, U.S. Patent No.
There is a structure such as No. 3003348, in which the locking member is released from the lid by pressing the cylinder part with a finger to open the lid, and the lid is locked with a lock.

However, the above conventional structure had the problem that it was difficult to open and difficult to operate.

In conventional knob locks of this type, the knob is allowed to move both when unlocking and when locking, so in order to check whether the lock is locked or not, the lid must be opened at the same time as the knob is operated. I was pulling it in the direction I wanted to go.

Frequently pulling the opening/closing lid when locking the lock not only may lead to destruction of the locking member, but also has the disadvantage that the two-movement operation required to confirm the lock is cumbersome.

The present invention has been made in view of the drawbacks of the prior art, and the knob does not move in the locked state.

An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a cylinder lock body, which has a rotor 2 therein. As is well known, the rotor 2 is provided with a key insertion hole 2a in the axial direction, and a plate tumbler 2b protruding from the circumferential surface in the vertical direction.

In the rotation locus partial space 1s of the plate tumbler 2b in the cylinder lock body 1, rotation restraining protrusions 1a and rotation permissible spaces 1b are formed to face each other alternately. Since the rotation restraining protrusion 1a is located in contact with the needle rotation direction side, insert the key and press the plate tumbler 2.
Unless b is drawn into the rotor 2, the rotor 2 cannot be rotated clockwise for locking operation.

On the other hand, on the counterclockwise rotation direction side of the plate tumbler 2b, the wide rotation permissible space 1b is continuous, so that the rotor 2 can be moved in the left-right direction on the front surface of the cylinder lock body 1 without using a key. By pressing both knobs 3, which are slidably provided on both sides, inwardly, it is possible to rotate the handle counterclockwise to release the lock.

That is, a driven protrusion 2c is formed at the front end of the rotor 2 to protrude in the vertical direction, and is constantly urged inward by a coil spring 4 provided between the locking protrusion 1c of the cylinder lock body 1. Driven protrusion 2
The rotor 2 is rotated counterclockwise as shown in FIG. 3 by pushing inward the pair of opposing knobs 3, 3 that are abutting against each other.

On the other hand, when the plate tumbler 2b is rotated clockwise by operating the key with the key so that the plate tumbler 2b overcomes the rotation restraining protrusion 1a, as shown in FIG. A knob 3 abuts against a movement restraining protrusion 2c' that is continuous with the driving protrusion 2c,
Even if the knob 3 is pressed, the rotor 2 does not rotate, so the knob 3 does not move.

A locking protrusion 5a is provided on the back side of the cylinder lock body 1.
A pair of locking members 5, 5 with the locking members 5a protruding outward are provided in such a state that they are constantly biased outward by a coil spring 6 provided between the two locking members 5, 5. are provided with driven protrusions 5b, 5b, and a driving portion 2d provided to protrude rearward of the rotor 2 is engaged with the driven protrusions 5b, 5b.

When the rotor 2 rotates in the counterclockwise direction, the driving portion 2d rotates in the direction of the arrow in FIG. the locking protrusions 5a,
5a from the engaging member (not shown). The rotor 2 returns to its original position due to the force of the coil spring 6 which attempts to return the locking members 5, 5 to their original positions.

When the rotor 2 rotates in the clockwise direction, that is, in the locked state, the driving portion 2d only rotates in the opposite direction through the space, and the locking members 5 do not operate.

A lid 7 for supporting the knob 3 is provided on the front surface of the cylinder lock body 1, and the rotor 2 faces the outside through a hole 7a of the lid 7.

Note that 1g in FIGS. 6 and 7 is a claw provided on the cylinder lock body 1, which can be attached to the cylinder lock body 1 by a single touch such as a glow box (not shown).

Since the present invention is constructed as described above,
By operating the knob on the lock part, the door can be opened in the unlocked state.

Further, when the knob is operated in the locked state, the knob does not move, so the locked state can be immediately confirmed.

[Brief explanation of the drawing]

Fig. 1 is a front view of the knob lock according to the present invention, Fig. 2 is a front view with the front cover removed, Fig. 3 is a front view of the same as above with the unlocking operation performed, and Fig. 4 is a front view of the knob lock according to the present invention. Figure 5 is a partially cutaway rear view, Figure 6 is a sectional view taken along the - line in Figure 1, Figure 7 is a front view when the same as above is locked,
The figure is an exploded perspective view, and FIGS. 8A and 8B are operation explanatory views of the main parts. 1... Cylinder lock body, 2... Rotor, 3...
Knob, 5...Locking member.

Claims (1)

[Claims] 1 A rotor is rotatably provided in the cylinder lock body, a knob is provided on the front face of the cylinder lock body so as to be movable in a direction intersecting the rotor, and when the rotor is in the unlocked position, the knob is inside. When the rotor is in the locked position, the knob is prevented from moving inward by the rotor, and a locking member is provided on the back side of the cylinder lock body, and the knob is A knob lock characterized in that the locking member is driven when the rotor is rotated by the rotation of the rotor.