JPS6116358Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a simple method that can be used to securely attach the lock to metal furniture such as steel desks, lockers, and bookshelves without using any other parts and even in narrow places. This invention relates to a lock attachment device that allows the lock to be installed.

When attaching a lock to conventional metal furniture,
A method that does not use screws has been adopted as an easy way to do this. For example, as shown in Utility Model Publication No. 43-7823, a lock with a lock mounting plate inserted is inserted with a wedge on the back side of the plate, or as shown in Utility Model Publication No. 49-47351, a wedge is inserted into the lock mounting plate. There is a method in which a cutting edge-shaped engaging portion and a stopper are provided, an ear portion with a protruding lock is hooked onto the engaging portion, and the stopper is bent and locked. However, these known methods are limited to the case where there is at least a space on the back side of the mounting plate where the mounting work can be performed, that is, there is a working space in which to insert fingers or an installation tool other than the lock. It cannot be installed in places with limited space where only a lock can be inserted.

The present invention proposes a device suitable for mounting on a frame or the like where there is extremely little space for the lock mounting position.

That is, the present invention provides a metal furniture with a lock insertion hole in a member at a lock mounting position at a position where the front end surface of the lock is exposed;
A mounting hole for attaching the lock is drilled at a different position from the above, and a hook piece is provided on the edge of the mounting hole, and a tongue piece is provided on the edge of the hole, and a tongue piece is provided on the edge of the hook piece. By inserting the lock toward the lock insertion hole, the hook piece protruding from the side of the top surface of the lock is held by the hook piece, and one side edge of the tongue is brought into contact with the rear edge of the lock piece. This is a summary of what has been accomplished.

The present invention will be explained below based on the illustrated embodiments.

In the figure, 1 is the lock mounting member in a place where it is easy to extract metal furniture or lock the door.
Side stile, and front stile and side stile in lockers, archives, etc. The front stile, front upper stile, and side stile are usually formed by bending an iron plate into a U-shape, and their thickness is 12
It is thin, about 20 mm to 20 mm.

This lock mounting member 1 is attached to the front frame of a desk, etc.
As shown in the figure, a mounting hole 2 is bored in the top surface of this member 1, and a lock insertion hole 3 is bored in the front surface. The mounting hole 2 is formed by bending the opposing hole edges downward and substantially perpendicularly, and further bending the lower end edges inward substantially horizontally to form opposing hook pieces 2a, 2a. It is adapted to hold the engaging pieces 4a, 4a which are protruded from both sides of the top surface. A tongue piece 2b is provided on one edge of the mounting hole 2 in parallel with the hook piece 2a, and the tongue piece 2b is provided in parallel with the hook piece 2a.
After holding the latch of the lock with the handle and locking it, bend this tongue piece 2b downward so that the lock does not separate from the hook piece 2a, and insert the side edge of this tongue piece 2b into the lock. It is brought into contact with the rear end surface of the engaging piece 4a and serves as a stopper. Therefore, the position of the tongue is determined so that when the tongue is bent, the rear end edge of the engaging piece and one side edge of the tongue are in approximate contact with each other at the position where the lock is installed in a predetermined position.

In addition, 3 in the figure shows the front end surface 4b of the lock on the front surface of the lock mounting member.
is exposed, and the step 4c is in contact with the outer peripheral edge of the lock insertion hole on the back side of the lock attachment member.

Furthermore, the tongue piece 2c, which is formed in the mounting hole and serves as a stopper, is arranged parallel to the longitudinal direction of the hook piece as shown in FIG. It can also be bent slightly downward.

To attach the lock 4 to the lock attachment member 1 constructed as described above, first insert the lock 4 into the frame from the back side of the front stile and side stile, which has a narrow space into which only the lock 4 can be inserted, toward the lock insertion hole 3. insert. Then, insert the engaging pieces 4a, 4a of the lock 4 between the hook pieces 2a, 2a, and insert the front end surface 4b of the lock into the lock insertion hole 3 accurately, and at this time, the step 4c is placed on the back side of the outer periphery of the hole 3. Make sure they are touching each other.

After the lock 4 is inserted into position in this way,
Next, by bending the tongue piece 2b slightly downward, the side edge of the tongue piece 2b will face the rear edge of the locking piece and will prevent it from coming off. Then, by fixing the top plate 5 on the front stile or the like with bolts or the like, the mounting hole 2 on the top surface of the lock mounting member is completely covered.

If the tongue piece 2b is slightly bent downward as shown in Fig. 3, the following procedure should be taken when attaching the lock. In other words, when inserting the engaging piece of the lock between the hook pieces 2a, 2a, slide the tip of the tongue by lifting it slightly on the top surface of the lock, and when the engaging piece reaches the fixed position, the tip of the tongue is restored by its elasticity and comes into contact with the rear end edge of the engaging piece.

The tongue piece 2c is formed directly on the front stile, side stile, etc.

According to the present invention, a lock mounting member in a position where there is little installation space, such as a front stile or a side stile of metal furniture, has a hook piece that directly faces each other and a tongue piece that serves as a stopper. mounting hole and
A lock insertion hole is drilled so that the end surface of the lock fits in a position different from this mounting hole and is exposed to the front, and an engaging piece protruding from the top surface of the lock is inserted using the hook piece of the mounting hole. The lock can be held by simply sliding the lock in a straight line toward the lock insertion hole, and the tongue piece is bent to prevent the lock from coming out, making it easy to install the lock in a frame with a narrow space where only a lock can be inserted. It has the advantage of being quick and easy to carry out, as well as having a small number of parts and being inexpensive.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of how the lock is attached to a desk, FIG. 2 is an explanatory diagram of how the lock is also attached to a locker, etc., and FIG. 3 is an illustration of a different embodiment of the lock attachment hole. 1... Lock mounting member, 2... Mounting hole, 2a... Hook piece, 2b... Tongue piece, 2c... Tongue piece, 3... Lock insertion hole, 4... Lock, 4a... Engagement piece.

Claims (1)

[Scope of utility model registration request] A lock insertion hole is drilled at a position where the front end of the lock is fitted and exposed in a frame member with little space at the lock attachment position of metal furniture, and a mounting hole for attaching the lock is drilled at a different position. Two hook pieces facing each other bent to hold engaging pieces protruding from both sides of the top surface of the lock are provided on two opposite side edges of the mounting hole, and facing the end surfaces of the hook pieces, In addition, a tongue piece is formed which acts as a stopper by coming into contact with the rear end surface of the engaging piece of the lock, and when the lock is inserted toward the lock insertion hole, the engaging piece protruding to the side of the top surface of the lock is opposed to the tongue piece. A lock attachment device for metal furniture, which is held by two hook pieces and one side edge of the tongue is brought into contact with the rear edge of the locking piece.