JP2900331B2 - Keyhole protection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a keyhole protection device,
In particular, the present invention relates to a keyhole protection device that protects a keyhole provided in an elevator car.

[0002]

2. Description of the Related Art A conventional elevator car will be described with reference to the drawings. FIG. 6 is a schematic view showing the inside of a conventional elevator car, and FIG. 7 is an enlarged view of a portion A shown in FIG.

[0003] As shown in FIG. 6, an operation panel 2 for operating the car 1 is provided in the car 1, and as shown in FIG. A cover 3 for concealing the operation panel and a lock 4 of the cover 3 are provided, and the lock 4 has a keyhole 4a. The cover 3 is always locked and concealed, and the lock 4 is exposed.

[0004]

By the way, the above-mentioned conventional elevator is of the self-operating type, but the car 1
In many cases, there is only one passenger inside the car. At this time, the inside of the car 1 becomes a private room and is invisible. There is a problem to be done.
Depending on how the foreign matter is packed, there is a risk that it takes time to remove the foreign matter when unlocking the lock 4 during maintenance and inspection, and that the lock 4 needs to be replaced in the worst case. Was.

The present invention has been made in view of such a situation in the prior art, and an object of the present invention is to provide a keyhole protection device capable of preventing a key hole from being tampered with a foreign substance.

[0006]

In order to achieve this object, the present invention comprises an insert inserted into a keyhole and immersible in the keyhole, and a withdrawal body for extracting the insert buried in the keyhole. It is configured to be combined.

[0007]

Since the present invention is constructed as described above, the insert is inserted into the keyhole and is buried when locking, and the unlocked body is pulled out by the puller when unlocking. It is designed to be unlocked. Thus, it is possible to prevent a passenger from mischievously filling the keyhole with a foreign object.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an embodiment of a keyhole protection device according to the present invention. 1 is a perspective view showing an embodiment of the keyhole protection device of the present invention, FIG. 2 is a perspective view showing a state where an insert is inserted into a keyhole, FIG. 3 is a perspective view showing a state where the insert is buried in a keyhole, FIG. 4 is a perspective view showing a state in which the insert is pulled out by the pull-out body, and FIG. 5 is a perspective view showing another embodiment of the keyhole protection device.

The keyhole protection device of this embodiment shown in FIG. 1 includes an insert 5 inserted into the keyhole 4a and immersible in the keyhole 4a, and a pull-out body 6 for pulling out the insert 5 buried in the keyhole 4a. And the above-mentioned insert 5 has an engaging portion 5a.
A pull-out member 6 is provided with an engaging element 6a which can be engaged with the engaging portion 5a. 2 to 4 are the same as those in FIG.

In this embodiment, after the lock 4 is locked, the insert 5 is inserted into the keyhole 4a as shown in FIG. 2, and then the insert 5 is buried in the keyhole 4a as shown in FIG. Then, at the time of unlocking, as shown in FIG. 4, the engaging element 6a of the extraction member 6 is engaged with the engaging portion 5a of the insert 5 buried in the keyhole 4a. 5
, And then unlocked.

In the keyhole protection device shown in FIG. 5, the insert 5 is formed of a magnetic material, and includes a magnet (not shown) for magnetically attaching the insert 5 to the extraction member 6. Note that the other reference numerals are the same as those shown in FIG.

In another embodiment, at the time of unlocking, the extraction body 6 is sucked by the insertion body 5 buried in the keyhole 4a, and in this state, the insertion body 5 is pulled out from the keyhole 4a. It is supposed to.

In the embodiment constructed as described above, the insertion member is inserted into the keyhole 4a and buried when locking, so that it is impossible to insert a foreign substance such as a toothpick or a match into the keyhole 4a. In addition, it is possible to prevent a passenger from mischievously stuffing a keyhole with a foreign substance.

In the other embodiment described above, the insert 5 is made of a magnetic material, and the drawer 6 is provided with a magnet. However, the present invention is not limited to this. Prepared,
On the other hand, the same effect can be obtained even if the drawing body is formed of a magnetic material.

[0015]

Since the present invention is constructed as described above, it is possible to prevent a passenger from mischievously packing a foreign substance into a keyhole, thereby eliminating the adverse effects of the foreign substance being packed. In addition, since the above-mentioned mischief can be prevented by closing the keyhole with the insert, there is also an effect that it is not necessary to perform any operation on the existing lock.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a keyhole protection device of the present invention.

FIG. 2 is a perspective view showing a state where an insert is inserted into a keyhole.

FIG. 3 is a perspective view showing a state in which an insert is buried in a keyhole.

FIG. 4 is a perspective view showing a state in which the insertion body is pulled out by the pulling body.

FIG. 5 is a perspective view showing another embodiment of the keyhole protection device.

FIG. 6 is a sketch showing the interior of a conventional elevator car.

FIG. 7 is an enlarged view of a portion A shown in FIG. 6;

[Explanation of symbols]

 4 Lock 4a Keyhole 5, 7 Insert 5a Engagement part 6, 8 Pull-out body 6a Engagement element

Claims (3)

(57) [Claims] 1. A keyhole protection device comprising a combination of an insert inserted into a keyhole and immersible in the keyhole and a withdrawal body for pulling out the insert buried in the keyhole. 2. An insertion part is provided on the insert, and
The keyhole protection device according to claim 1, wherein an engaging element engageable with the engaging portion is provided on the drawing body. 3. The keyhole protection device according to claim 1, wherein one of the insertion body and the extraction body is formed of a magnetic material, and the other is provided with a magnet for magnetically attaching the magnetic material.