JPH0223731Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a gun lock used for locking furniture drawers.

(Prior art and its problems) The structure of this type of gun lock will be explained using part of FIGS. 1 to 3 showing an embodiment of the present invention. , a locking tool 2 that holds the lock body 1 in the protruding position and the retracted position, a spring 3 that biases the locking tool 2 from the unlocking position to the locking position, and the tip of the key 4. The case 8 has a key hole 7 extending from the center of the key hole for introducing the key tip 4a into the key guide pin 5. The unlocking piece introduction hole 7a is provided in a direction opposite to the direction in which the lock main body 1 protrudes. Then, the tip 4a of the key 4 is inserted into the key hole 7 and fitted to the key guide pin 5, and in this state, the key 4 is rotated and the unlocking piece 9 is used to unlock and lock the locking tool 2. It is configured so that the main body 1 can be taken in and taken out.

However, the unlocking operation by the unlocking piece 9, that is, the unlocking of the locking tool 2 and the retraction of the lock body 1, is performed when the unlocking piece 9 is in the opposite direction from the state in which the unlocking piece 9 is in the same direction as the protruding direction of the lock body 1. Therefore, in conventional gun locks, when the key tip 4a is inserted into the keyhole 7, the unlocking piece 9 is rotated in the opposite direction to the protruding direction of the lock body 1. Since the direction is the same as the direction at the end of the unlocking operation, the unlocking piece 9 is opened with the key 4.
The lock cannot be unlocked without turning the button once.
Therefore, at the end of the unlocking operation, the unlocking piece 9 has returned to its original orientation, that is, the same orientation as when the key tip 4a was inserted into the keyhole 7, so the key 4 at the end of this unlocking operation is If you try to open the drawer by pulling it, the key 4 will fall out of the keyhole 7.
That is, in the conventional gun lock, when the unlocking operation is completed, the key 4
could not be used as a drawer pull.

In order to eliminate the above-mentioned inconvenience, the unlocking piece introduction hole 7a of the keyhole 7 may be provided in the same direction as the protruding direction of the lock body 1. Normally, the lock body 1 is used for locking by protruding upward from the key hole 7. Therefore, if the unlocking piece introduction hole 7a is formed in the above direction, the lock can be unlocked from the center of the keyhole 7. The single introduction hole 7a extends upward, resulting in a keyhole shape that is opposite to the general keyhole shape, which may reduce the commercial value, which is not practical.

(Means for Solving the Problems) In order to solve the above-mentioned conventional problems, the present invention rotates the auxiliary tool 12 on the key guide pin 5, as shown in FIGS. 1 to 3. Attach it freely,
The auxiliary tool 12 includes an unlocking piece fitting part 10 into which the unlocking piece 9 of the key tip 4a fits, and the unlocking piece 9.
In place of the locking device 2, an unlocking operation piece 11 for unlocking the locking tool 2 and inserting and removing the lock body 1 is provided so as to extend in mutually opposite directions centering on the key guide pin 5. This is a proposal for a gun lock.

(Example) An example of the present invention is shown below in attached Figures 1 to 5.
To explain based on the drawings, as described above, the gun lock according to the present invention includes a lock body 1 that can be moved in and out, a locking tool 2 that holds this lock body 1 in the protruding position and the retracted position, and the lock body 1 that is movable in and out. A spring 3 that urges the stopper 2 from the unlocked position to the locked position, and a tip 4 of the key 4.
The case 8 has a key hole 7 extending from the center of the key hole for introducing the key tip 4a into the key guide pin 5. In a gun lock in which the unlocking piece introduction hole 7a is provided in the opposite direction to the protruding direction of the lock body 1, an auxiliary tool 12 is rotatably mounted on the key guide pin 5, and the auxiliary tool 12 is rotatably mounted on the key guide pin 5. 12 includes an unlocking piece fitting portion 1 into which the unlocking piece 9 of the key tip portion 4a fits.
0, and an unlocking operation piece 11 that replaces the unlocking piece 9 and unlocks the locking tool 2 and inserts and takes out the lock body 1, extend in mutually opposite directions centering on the key guide pin 5. It is designed to do this.

The structure of the lock body 1 and the locking device 2, as well as the unlocking and closing functions, are the same as those known in conventional gun locks of this type.
An approximately V-shaped operated portion 1a is provided on the side adjacent to the key guide pin 5, and the locking tool 2
A locking protrusion 1b that engages with is provided in a protruding manner. 2
A is a pin on which the locking tool 2 is pivotally attached.
The auxiliary tool 12 has one end rotatably fitted into a circular seat 5a formed at the base of the key guide pin 5, and the other end fitted into a circular portion 7b located concentrically with the key guide pin 5 of the key hole 7. A central cylindrical portion 13 is provided between the unlocking piece fitting portion 10 and the unlocking operation piece 11, into which the unlocking piece fitting portion 10 is rotatably fitted.

As shown in FIG. 1, when the lock main body 1 is in an upwardly protruding state, that is, in a locked state, the auxiliary tool 12 is held by gravity in a state in which its unlocking piece fitting portion 10 faces downward. . Of course, auxiliary equipment 1
A spring may also be used to hold 2 in this state. In this state, the unlocking piece fitting portion 10 and the unlocking piece introducing portion 7a of the keyhole 7 are aligned. In this state, the key tip 4a is fitted onto the key guide pin 5, and the unlocking piece 9 is inserted into the unlocking piece introducing portion 7.
Insert the key 4 into the keyhole 7 so that it fits into the unlocking piece fitting part 10 of the auxiliary tool 12 from a, and rotate it 180 degrees clockwise until the unlocking piece 9 faces upward. As shown in , the unlocking operation piece 11 of the auxiliary tool 12 is rotated downward from the upward position, and the locking tool 2 is first swung outward against the spring 3 to release the locked protrusion of the lock body 1. 1b, the lock body 1 is moved downward via the operated portion 1a of the lock body 1 to switch to the retracted state, that is, the unlocked state.

In this unlocked state, the unlocking piece 9 of the key 4 is
Since it is in an upward state together with the unlocking piece fitting part 10 of No. 2, it does not match with the unlocking piece introduction part 7a of the keyhole 7.
Removal of the key 4 from the keyhole 7 is prevented by the contact between the unlocking piece 9 and the case 8. That is, in this unlocked state, the key 4 and the gun lock 6 are integrated, so the key 4 in the unlocked state can be used as a pull of a drawer to which the gun lock 6 is attached.

To return from the unlocked state to the locked state, first turn the key 4 180 degrees in the opposite direction and rotate the unlocking tool 11 of the auxiliary tool 12 facing downward counterclockwise upward. Stop 2 is spring 3
The lock body 1 is swung outward against the force, and the lock body 1 is once disengaged from the locked protrusion 1b, and then the lock body 1 is moved upwardly via the operated portion 1a, and is in the protruding state. , that is, it is returned to the locked state.

In this locked state, the unlocking piece fitting part 10 of the auxiliary tool 12 into which the unlocking piece 9 of the key 4 is fitted faces downward,
Since the direction matches the unlocking piece introduction part 7a of the keyhole 7, the key 4 can be pulled out from the gun lock 6 via the keyhole 7.

(Operations and Effects of the Invention) As described above, according to the drawer gun lock of the present invention, the key tip 4a can be inserted into the keyhole 7, and the unlocking piece 9 can be inserted into the keyhole 7.
is fitted into the unlocking piece fitting part 10 of the auxiliary tool 12, the unlocking operation piece 11 of the auxiliary tool 12 is inserted into the lock main body 1.
It is in the same direction as the protruding direction of the key 4, and is in the same state as in a conventional gun lock when the key 4 is turned half a turn to the unlocking action starting position. Therefore, by simply turning the key 4 half a turn, the unlocking operation piece 11 can immediately perform the unlocking action, and even when closing the lock, the key 4 can be pulled out from the key hole 7 by only turning the key 4 half a turn. Compared to conventional gun locks, which require the key 4 to be rotated once when opening and closing the lock,
Allows you to open and close locks efficiently.

Moreover, when the key 4 is turned half a turn to complete the unlocking action, the unlocking piece 9 of the key 4 is oriented in the direction in which the lock body protrudes, which is exactly opposite to the direction of the unlocking piece introduction hole 7a of the keyhole 7. Therefore, the case 8 can prevent the key 4 from being removed. Therefore, by simply combining the conventionally known gun lock with the auxiliary tool 12, which has a simple structure,
Although the key 4 is a gun lock that can be used in the normal orientation with the unlocking piece 9 facing downward, it has the advantage that the key cannot be removed in the unlocked state and can be used as a drawer pull.

[Brief explanation of the drawing]

Figure 1 is a vertical front view of the locked state, Figure 2 is a vertical front view of the unlocked state, Figure 3 is an external view of the gun lock and key, Figure 4 is a cross-sectional view of the main parts, and Figure 5 is a cross-sectional view of the main parts. It is a perspective view of an auxiliary tool. 1... Lock body, 2... Locking tool, 3... Spring, 4... Key, 5... Key guide pin, 6... Gun lock, 7... Keyhole, 7a... Unlocking piece introduction part , 8...
Case, 9... Unlocking piece, 10... Unlocking piece fitting part,
11...Unlock operation piece, 12...Auxiliary tool.

Claims (1)

[Scope of utility model registration request] A lock main body 1 that can move in and out, a locking tool 2 that holds the lock main body 1 in a protruding position and a retracted position, and a locking tool 2 that urges the locking tool 2 from a unlocking position to a locking position. A case 8 includes a spring 3 and a key guide pin 5 into which a tip 4a of a key 4 is rotatably fitted.
In this case, a keyhole 7 for introducing the key tip 4a into the key guide pin 5 is arranged so that the unlocking piece introduction hole 7a extending from the center of the keyhole is opposite to the direction in which the lock body 1 projects. In a gun lock set to face the
An auxiliary tool 12 is rotatably attached to the key guide pin 5, and the auxiliary tool 12 includes an unlocking piece fitting part 10 into which the unlocking piece 9 of the key tip 4a is fitted, and an unlocking piece fitting part 10 into which the unlocking piece 9 of the key tip 4a is fitted. 9, the drawer is provided with an unlocking operation piece 11 for unlocking the locking tool 2 and inserting and removing the lock body 1, so as to extend in mutually opposite directions centering on the key guide pin 5. Gun lock.