JPH0416860Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a lock that is removably installed in hotel safes, sports club lockers, etc. used by a large number of people.

(Prior art) In conventional locks, the lock body is fixed to the door panel with nuts, the latch plate is fixed to the rotor with bolts, and a key that fits into the keyhole is inserted into the lock body to close the latch plate. By rotating the door panel, the latch plate and the receiving portion of the fixed frame were engaged and disengaged, and the door panel was locked and unlocked with respect to the fixed frame.

(Problem that the invention aims to solve) However, with a lock fixed to the door panel in this way, only a specific key that fits in the keyhole can be used for a specific lock body, so if the key is lost or stolen. There is also a risk of unauthorized unlocking by someone with malicious intent.
There was always a risk of unauthorized copying of the lock for unauthorized use.

Therefore, an object of the present invention is to provide a removable lock that allows the entire lock body to be removed, thereby solving the above-mentioned problems associated with loss, theft, and malicious copying of keys.

(Means for Solving the Problems) The removable lock of the present invention will be explained below using the reference numerals in the attached drawings. A rotor 3 is housed in the rotor 3 and rotates forward and backward between the A position and the B position.
and a latch plate 5 that is fixed to the rotor tip shaft portion 3a protruding from the lock body 2 and that can be inserted into and removed from the insertion hole 4 of the door panel 1. When the rotor 3 is turned to the A position, the latch plate 5 5 into the back side of the door panel 1 through the insertion hole 4 of the door panel, turn the rotor 3 to position B, and fix the fixed frame body that engages the end 5a of the hanging plate 5 with the back side of the door panel. This is to engage with the back surface of the receiving portion 6a of No. 6.

(Function) When locking the door panel, move the lock body 2 to the door panel 1.
and insert the tip shaft portion 3a of the rotor 3 and the retaining plate 5 into the insertion hole 4. The key 7 is inserted into the rotor 3 of the lock body 2, and the rotor 3 is rotated to make the locking plate 5 perpendicular to the insertion hole 4. As a result, the end portion 5a of the latch plate 5 engages with the back surface of the receiving portion 6a of the fixed frame 6, so that the lock body 2 can be fixed to the door panel 1 and the door 1 can be locked to the fixed frame 6. established at the same time.

To unlock the lock, the key 7 is inserted into the lock body 2, the rotor 3 rotates in the opposite direction to rotate the locking plate 5 to a position where it faces the insertion hole 4 in parallel, and the lock body 2 is pulled forward.

(Example) In the illustrated example, the tip shaft portion 3 of the rotor 3
A is formed to have a hexagonal cross section, and a locking plate 5 is fitted in a hexagonal hole 8 so as not to rotate. It is irremovably fixed to the

On the back side of the door panel 1 where the insertion hole 4 is provided,
A guide plate 12 having a circular receiving hole 11 is fixed,
The rotor tip shaft portion 3a can move in and out of the receiving hole 11 and rotate freely within the receiving hole 11.

The guide plate 12 fixed to the back side of the door panel 1 is
By preventing the items inside the fixed frame 6 from being seen from the outside and inserting the rotor tip shaft portion 3a into the receiving hole 11, the locking/unlocking operation of the door is made smoother and more reliable.

With this removable lock, when there are multiple objects to be locked, rather than having a unique lock fixed to each object all the time, the user can use multiple prepared locks each time the object needs to be locked. Give one item from the group,
The user attaches it to the door panel of the object he or she uses, such as a rock car, only when necessary.

In this embodiment, the end shaft portion 3a of the rotor 3 has a regular hexagonal cross section in order to mount the retaining plate 5 in a non-rotatable manner. In addition to the E-ring 10, nuts, bolts, lock pins, etc. can be used as the retainer. In addition, the hanging plate 5
The shape of is also not particularly limited.

In this embodiment, the lock unit 15 incorporated into the lock body 2 is a normal cylinder lock mechanism using a plurality of disc tumblers 16, but this is not limited to other types such as a pin tumbler lock mechanism or an axial pin tumbler lock mechanism. The locking mechanism can be selected and used as appropriate.

As a prerequisite for ensuring that the locking plate 5 locks the fixed frame 6 of the door panel 1, the lock body 2 attached to the door panel 1 must be unable to rotate relative to the door panel 1. be.

In this embodiment, the main portion of the lock body 2 that protrudes toward the front side of the door panel 1 has a circular cross-sectional shape from the rear to the front, and the radius becomes smaller from the rear to the front. There is. That is, the lock body 2
The outer peripheral surface of the main body part is formed into a tapered surface that decreases in diameter toward the front, so even if you try to turn the lock body 2 by placing your fingertips on the outer peripheral surface of the main body part, your fingertips will not slip out to the front. This will result in
The lock body 2 cannot be rotated with respect to the door panel 1.

In order to make the lock body 2 unrotatable relative to the door panel 1, a rotor 3 is attached to the rear surface of the main body of the lock body 2.
A protrusion is provided more eccentrically, and the protrusion is attached to the door panel 1.
It is also possible to select and employ other known rotation stopper structures as appropriate, such as fitting into a receiving hole provided in the rotor.

(Effect of the invention) As described above, in this invention, there is no one-to-one correspondence between multiple objects to be locked and multiple locks, and locks are handed out at random, and objects to be locked are randomly assigned. Since the key is selected, even if the key is lost or maliciously copied, it will take a considerable amount of time to unlock the lock illegally, so it is safe from a security perspective.

In addition, if there is an insertion hole in the door panel, the lock body can be installed and used immediately, so in lockers etc. that are used by a large number of people on a time shift system, multiple people can use one lock instead of one person. can be used together, reducing the cost of locksmith equipment.

[Brief explanation of the drawing]

The drawings show a removable lock according to an embodiment of the present invention, and FIG. 1 is a front view of the lock when applied to multiple lockers. 2 is a sectional view taken along the line AA in FIG. 1, and FIG. 3 is a sectional view taken along the line BB in FIG. 1. FIG. 4 is an exploded perspective view of the removable lock. FIG. 5 is a sectional view taken along the line C-C in FIG.
FIG. 6 is a sectional view taken along the line DD in FIG. 3.
FIG. 7 is a right side view when the lock body is attached to the door panel. 1... Door panel, 2... Lock body, 3... Rotor, 3a... Rotor tip shaft portion, 4... Insertion hole,
5... Hanging plate, 5a... End of the hanging plate, 6... Fixed frame, 6a... Fixed frame receiving part, 7... Key, 8
... Hexagonal hole, 9 ... Fixing groove, 10 ... E-ring, 11 ... Circular receiving hole, 12 ... Guide plate, 13 ...
...Socket plate, 15...Lock unit, 16...Pin tumbler, 17...Hinge.

Claims (1)

[Scope of utility model registration request] Lock body 2 non-rotatably attached to door panel 1
A rotor 3 is housed in the lock body 2 and rotates in forward and reverse directions between positions A and B. The rotor 3 is fixed to the rotor tip shaft portion 3a that protrudes from the lock body 2, and can be inserted into and removed from the insertion hole 4 of the door panel 1. With the rotor 3 turned to the A position, the locking plate 5 is inserted into the back side of the door panel 1 through the insertion hole 4 of the door panel, and the rotor 3 is turned to the B position. A removable lock in which an end 5a of a hanging plate 5 is engaged with the back surface of a receiving portion 6a of a fixed frame 6 that is engaged with the back surface of a door panel.