JPS58135273A - Composite lock and apparatus thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention divides a key vertically into two or more parts, and only one half of the key can fully function as a key. It is related to a key that should be able to function as a single key, and its purpose is to open and take out storage containers for important shared items, etc., but not to take them out alone. This is so that the lock cannot be unlocked unless both co-owners are present or with the agreement of both co-owners.

Traditionally, locks for debt vaults that are managed by multiple people, locks for closing doors that are important for crime prevention, locks for chests that store savings accounts shared by couples, and bottles that are shared by two customers. For locks, etc., which require the consent of multiple members to be able to unlock or prevent access, such as the lock of a keep box, etc., with the consent or presence of multiple members. Otherwise, there would be no key with such a unique action that it would be possible to open the lock.In order to satisfy such a desire, it is necessary to equip a plurality of different locks, each with its own unique function. They were left with no choice but to have separate keys to open and close each door.

However, in the present invention, a composite key is provided in a single lock so that the lock cannot be opened without the consent of multiple people, and each part to be composited is Each person involved in locksmiths owns a key, and when opening a lock, the parts of the key that each person has are brought together in the presence of multiple people, and only when they are combined can the lock be opened. , it is not necessary to equip multiple different locks, and it is impossible to easily open the lock by splitting a single lock and a single key without the consent or presence of multiple people. This is the key to satisfying a completely new desire, and the effect is remarkable.

This will now be described in detail with reference to the accompanying drawings showing an example of implementation.

The attached Figures 1 to 8 show the most basic two-piece key, where 1 is one half of a single key divided into two along a longitudinal cut plane parallel to the flat surface. 2 is its other life.

Reference numeral 8 denotes an operating portion provided in one half of the divided portion, which is a recess provided in accordance with the structure of the same portion of the lock. 4 is the working part provided on the other side, which is a recess provided according to the internal structure of the lock. 5
is a part that is cut out at a position facing the concave notch 4 of the other body 2 when the major part of one half 1 is combined so that it does not interfere with the operation of the concave notch 4 of the other body 2. Reference numeral 6 denotes a portion which is removed at a position opposite to the concave notch 3 of the -half when most of the other parts 2 are combined so that it does not interfere with the action of the concave notch 8 of the -half l. 7.7a is a known keyway. 8 is a positioning hole made at the base of one half 1, 9 is the base of other half 2, -
This is a protrusion having a position and size that should fit into the positioning hole 8 of the half.

The present invention has the above-described structure, and combines one half 1 and other half 2 in the correct position to form a single key having a complete working surface. At the same time, it is possible to open the lock, and at the same time, in only one half 1 or only half 2, there is a large part in the part with a sign of 5.6 etc., and there is a concave notch necessary for operation. Since the operating portion 8 or 4 is missing, it is absolutely impossible to open the lock.

In addition, when dividing the key in practice, it is possible to divide the key by a plane parallel to the flat plane of the key as in this embodiment, and it is also possible to divide the key by a plane parallel to the flat plane of the key. It is also possible to divide the key by plane, and to solve the problem of durability of the key, it is possible to increase the thickness of the recessed part 4 of the other half 2 in the main part 5 and fill the core part. 2, large part 6, one-half 1 recessed part B
It is also possible to increase the thickness and fill the core. In addition, when both hands 1.2 are combined, there are cases in which there are recesses that correspond to both hands as described above, and the shape of the recesses etc. can be used to determine the mutual position. In order to be able to do something, I also hooked it up.

In order to be able to adopt and implement any known technique such as Madanet device, dovetail-shaped matching concave missing line portions, etc., stationery devices should be installed not only in one place but in two or more locations. It is also possible to combine the bases in a more accurate position and direction, or to attach a cover that tightly fits over the combined base, and these should be able to be used in the implementation of the present invention.

[Brief explanation of drawings]

The attached drawings show an example of carrying out the present invention, and FIG. 1 is a perspective view when the two hands are combined, FIG. 2 is a plan view with the bases of both hands overlapped and the tips separated, and FIG. In the combined drawings, A is a plan view, B is a side view when viewed from the direction of the tip, and C is a side view. 1...-half, 2...Elongation rate', '8.4...Action part, 5.6...Most part, 7.7a...Keyway, 8.
...Positioning hole, 9...Protrusion. Applicant: Nippon Door Hardware Manufacturing Co., Ltd. Ishikura Metal Co., Ltd. Figure 2 Figure 3 A C 7η

Claims (1)

[Claims] By vertically dividing 11 keys into a plurality of parts, distributing the operating parts of the key in each divided part, and focusing the divided parts. A composite key characterized in that the key is capable of exerting its function for the first time. 2. The function of the key is exerted only by dividing one key vertically into a plurality of parts, distributing the operational parts of the key in each divided part, and combining the divided parts. 1. A compound key characterized in that the compound key includes a device for attaching and compounding the plurality of parts to each other in the correct position during combination.