JPS5846197Y2 - simple lock - Google Patents

Description

[Detailed description of the invention] This invention relates to a simple lock used for the shutter of the ventilation opening formed in the door, the unmatched window, etc. For example, by operating the handle connected to the movable shutter plate of the ventilation opening, The present invention relates to a simple lock that can easily lock and maintain the closed state at the same time as opening and closing the shutter.

In recent years, many doors and the like have vertical ventilation holes.

The structure of this ventilation hole is to attach a louver to the outdoor side of the door,
The door has a movable shutter plate provided with a plurality of ventilation holes and a cover plate that can close the ventilation holes attached to the indoor side of the door.

The handle of the simple lock attached to the cover plate is connected to the movable shutter plate, and the movable shutter plate can be slid by operating the handle.

However, in the case of the above-mentioned vertical ventilation opening, even if the shutter movable plate is opened by lifting the handle upward and sliding the shutter movable plate upward, the movable plate will slide down due to its own weight and become closed. The lock has an internal structure that locks it in the open state.

Various such structures have been proposed in the past, but all of them have drawbacks such as complicated structures and troublesome opening/closing operations.

Thus, the object of this invention is to provide a simple lock that eliminates these drawbacks.

This invention will be explained below based on embodiments shown in the drawings.

FIG. 3 is a perspective view showing the mounting board A, which is a component of the simple lock according to this invention.

A substantially rectangular mounting groove 1 is formed on the front surface of the mounting board A, and a long hole 2 is bored in the mounting groove 1 to penetrate to the back surface.

Furthermore, a locking recess 3 is provided in the center of one groove wall of the mounting groove 1.

The locking recesses 3 are provided on both sides of the elongated hole 2 as shown in FIG.
It doesn't matter if there is more than one place.

Further, on the back surface of the mounting board A, as shown in FIG. 1, a groove 4 substantially similar to the mounting groove 1 is formed.

Figure 1a of the drawings is a perspective view showing a handle B showing other components of the simple lock.

The handle B includes a connecting portion 5 having a female thread, for example, which passes through the long hole 2 of the mounting board A, and a connecting portion 5 that loosely fits into the mounting groove 1 and is locked in a locking recess 3 provided in the wall of the mounting groove. an adjustment plate 7 that is provided with claws 6, 6 at both ends and slides in the length direction of the mounting groove 1;
and an overhanging plate 8 that covers the mounting groove 1.

Further, the operating portion 9 of the handle B is provided to be substantially perpendicular to the projecting plate 8 and protrude in one direction.

When attaching this handle B to the handle board A, make sure that the handle B
The connecting portion 5 is passed through the elongated hole 2, and the locking piece 10.1
0 to the bottom of the groove 4.

Next, a connecting member (not shown) such as a screw attached to the shutter movable plate 11 is connected to the connecting portion 5.

Figures 5a, 1) and 5c are sectional views showing how the simple lock according to this invention is used.

First, as shown in FIG. 5, the operating portion 9 that protrudes in one direction is lifted upward.

Then, the adjustment plate 7 slightly rotates to the left about the connecting portion 5 and slides upward in the mounting groove 1.

The claw 6 then locks into the locking recess 3.

This allows the shutter movable plate 11 to be connected to the handle B.
slides upward and becomes open.

Therefore, although the claw 6 is locked in the locking recess 3, the shutter movable plate 11 does not slide down due to its own weight.

Further, when the shutter movable plate 11 is to be closed, the operating portion 9 is pushed down.

Then, the adjustment plate 7 rotates slightly clockwise, the pawl 6 disengages from the locking recess 3, and the adjustment plate 7 slides downward within the mounting groove 1.

The other claw 6 is then locked into the locking recess 3.

As described above, the simple lock according to this invention allows the movable shutter plate 11 to be opened and closed by simply lifting or pushing down the operating portion 9 of the handle B, and can be easily locked in the open/closed state.

Thus, this idea consists of the above structure.

This invention has the advantage of being simpler in structure and easier to operate than conventional ones.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention. Figure 1a is a perspective view showing the handle, Figure 1 is a perspective view of the mounting board seen from the back, and Figure 2 is a state where the connecting part of the handle is broken. Fig. 3 is a perspective view of the mounting board seen from the surface; Fig. 4 a, l), c is a plan view showing the operating state of the simple lock; Fig. 5 a, l), c are cross-sectional views of Fig. 4 a, b, c,
FIG. 6 is a longitudinal sectional view of the simple lock, FIG. 7 is a perspective view showing the simple lock in use, and FIG. 8 is a perspective view showing another embodiment of the mounting board. A...Mounting board, B...Handle, 1...
...Mounting groove, 2...Long hole, 3...
Locking recess, 4...Groove, 5...Connection part,
6...Claw, 7...Adjustment plate, 8...
・・Protrusion plate, 9・・・Operation unit, 10・・・・
Locking plate, 11... Shutter movable plate.

Claims (1)

[Scope of utility model registration request] A mounting board A is provided with a substantially rectangular mounting groove 1, a long hole 2 is bored in the mounting groove 1, and a locking recess 3 is provided in the groove wall of the mounting groove 1. A connecting portion 5 passing through the elongated hole 2 and a locking recess 3 that loosely fits into the mounting groove 1.
An adjustment plate 7 having claws 6, 6 at both ends to be engaged with the mounting groove 1 and an overhanging plate 8 covering the mounting groove 1 are integrally formed, and an operating portion 9 is provided protruding approximately at right angles to the overhanging plate 8. Attach a certain handle B and press the operating part 9.
A simple lock characterized in that by operating the mounting board A in the longitudinal direction, the pawl 6 can be fitted into and locked in the locking recess 3 and locked.