JPS588843Y2 - door lock device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a door lock device suitable for application to a door of a housing of an electronic device or the like.

Conventionally, a door lock device 1 for a door of this type of case
As shown in Fig. 7, because the operating part 2a of the handle 2 protruded between the doors 3° and 3' without any locking means, if an outsider carelessly operated the operating part 2a, , doors 3 and 3' were often opened, as shown by the phantom lines in Figure 1.

Generally, there are many dangerous parts such as high voltage parts and rotating parts inside the housing 6, so when the doors 3 and 3' are opened, these parts may be exposed and an extremely dangerous situation may occur. Ta.

Therefore, the present invention forms a holder on the door and
A knob with a groove in the head end face is screwed between the holder and the operating part of the handle so that the operating part can be fastened and fixed to the door, and the head end face of the knob is always attached to the door. It is an object of the present invention to provide a door lock device that is configured to protrude outward from the surface, thereby eliminating the above-mentioned drawbacks.

Hereinafter, the present invention will be specifically explained based on an embodiment shown in the drawings.

As shown in FIG. 1, the electronic device 5 has a casing 6, and doors 3 and 3' are supported on the front surface of the casing 6 so as to be rotatable in the directions of arrows A and B. There is.

As shown in FIG. 2, the door 3' is formed with a flange 3a', and when the doors 3, 3' are closed, the flange 3a'
a' and the tip of the door 3 come into contact, and the door end surface 3 b , 3
A groove 7 with a constant width is formed between b'.

As shown in FIG. 3, a rectangular hole 3C is formed at approximately the center height position of the door end surface 3b, and a holder 9 with a threaded hole 9a is adjacent to the hole 3C. It is fixed.

On the other hand, inside the door 3, as shown in FIGS. 1 to 3, the handle 2 constituting the door lock device 1 has a bent operating portion 2a projecting from the hole 3C into the groove 7 with an arrow mark. C,
It is provided movably in the D direction, and the operation section 2a includes:
As shown in FIG. 4, a long hole 2b is bored.

As shown in FIG. 3, a knob 11 is provided in the elongated hole 2b through a washer 10 so as to pass through the threaded portion 11a, and the tip of the threaded portion 11a is attached to the washer 10. It is screwed into the threaded hole 9a of the holder 9 via '.

A groove 11C is bored in the head end surface 11b of the knob 11, and the head end surface 11b has, as shown in FIG.
The knob 11 is formed to protrude slightly outward from the door surface 3d when it is screwed all the way to the right in the figure, that is, when it is in the fastened state.

In addition, the handle 2 has, as shown in FIGS. 3 and 6,
Bar-shaped rods 12, 12' are fixed at the top and bottom in the figure, and stoppers 13.
13' is provided.

The stopper 13.13' has a hook-shaped engaging part 13a,
As shown in FIGS. 1 and 6, the housing 6 has bent portions 15a and 15a' formed at the tip facing the stopper 13.13'. A hook 15.15' is provided.

Since the present invention has the above configuration, the electronic device 5
When closing the doors 3, 3' of the housing 6, the door 3' is first rotated in the direction of arrow B, and then the door 3 is rotated in the direction of B, as shown in FIG.

When the door 3 is almost closed, the operating portion 2a of the handle 2 is moved in the direction of arrow C along the hole 3C, as shown in FIG.

At this time, the knob 11 is in a loosened state, and the operating portion 2a is in a shape in which the threaded portion 11a of the knob 11 moves relatively in the direction D within the elongated hole 2b, as shown in FIG. can move freely.

When the handle 2 moves in the direction C, as shown in Fig. 6,
The rods 12 and 12' are also C together with the stoppers 13 and 43'.
move in the direction.

In this state, when the door 3 is completely closed to the housing 6,
The hook 15.15' on the side of the housing 6 has a bent portion 15 at the tip.
a, 15 a' is the engaging part 1 of the stopper 13.13'
3 a, comes directly under 13 a'.

Therefore, the operating part 2a of the handle 2 is moved in the direction of the arrow, and the stopper 13, 13' is inserted through the rods 12, 12'.
move in direction D.

Then, the engaging parts 13a, 13 of the stopper 13.13'
a' and hook 15.15' bent part 15 a, 15
a' are engaged, and the door 3 is fixed to the housing 6.

At this time, as shown in FIG. 2, the door 3' is in abutting engagement with the door 3 via the flange 3a', so movement in the direction of arrow A is prevented, and the door 3 and the casing are prevented from moving in the direction of arrow A. Fixed to 6.

In this state, rotate the knob 11 fitted into the groove 7 between the doors 3 and 3' to release the handle 2 as shown in FIG.
The operating section 2a and the holder 9 are fastened together.

Then, the operation part 2a is fixed to the holder 9 and therefore to the door 3, and will not be moved inadvertently in the direction of arrow C9D.

Note that the head end surface 11b of the knob 11 protrudes outward from the door surface 3d even when the knob 11 is in the fastened state, so when rotating the knob 11, the coil etc. This can be easily done by simply engaging with the groove 11C of b and rotating, and no tools such as a screwdriver are required.

The doors 3, 3' are closed in the above manner, but if you want to open the closed doors 3, 3' next, follow the completely opposite procedure to the above, first turn the knob 11 as shown in Figure 4. Loosen it using a coil or the like, move the operating part 2a in the direction of arrow C, and release the engagement between the stopper 13.13' and the hook 15.15' via the rods 12, 12', as shown in FIG. When the door 3 and then the door 3' are rotated in the direction of arrow A, the doors 3 and 3' are opened.

Note that the tip 11 d of the threaded portion 11 a of the knob 11 is
As shown in FIG. 5, since it is caulked, even if the knob 11 is loosened more than necessary, the threaded part 11a will not be attached to the holder 9.
The knife will not fall from the hole 9a.

As explained above, according to the present invention, since the operating part 2a of the handle 2 can be fastened and fixed by the knob 11, the handle 2 may be moved inadvertently while the knob 11 is being fastened. It is possible to provide a highly secure door lock device 1 that prevents the door from being opened.

In addition, the head end surface 1 in which the groove 11C of the knob 11 is formed.
As shown in Fig. 5, the knob 1b always protrudes outward from the door surface 3d, and the knob 11 can be easily rotated using a coin or the like, so inspections inside the housing can be carried out quickly. The door 3.3' can be opened and closed at any time.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an electronic device to which an embodiment of the door lock device according to the present invention is applied, FIG. 2 is a plan view showing the door portion of the electronic device shown in FIG. 1, and FIG. 1 is an exploded perspective view showing the main parts of the door lock device, FIG. 4 is a front view of the knob, FIG. 5 is a side view of FIG. 4, and FIG.
This figure is a side view showing the overall outline of the door lock device in FIG. 1, and FIG. 7 is a front view showing the conventional door lock device. 1...Door lock device, 2...Handle, 2a...Operation unit, 3...Door, 3
d... Door surface, 6... Housing, 9...
...Holder, 11...Knob, 11 b
・・・・・・Head end face, 11 C・・・・・・Groove, 12
．． 12'...Rod, 13.13'...
・Stopper, 15, 15'...Hook.

Claims (1)

[Scope of utility model registration request] It has a door rotatably supported with respect to the casing, a handle is provided on the door so as to be movable with an operating part of the handle protruding outside the door, and a stopper is attached to the handle via a rod. is installed so that it can be linked with the movement of the handle, and further a hook is provided on the housing so that it can be freely engaged with the stopper,
In the door lock device, the door can be fixed and unfixed with respect to the housing by moving the operating part, and a holder is formed on the door, and the operating part is arranged between the holder and the operating part to lock the door. A door lock device comprising a knob with a groove bored in the end face of the head screwed so that it can be fastened and fixed to the door, and the end face of the head of the knob is always projected outward from the door surface. .