JPH03115674A - Locking device for door - Google Patents

Abstract

PURPOSE:To prevent the forcing of a door by providing a locking part for retraining the longitudinal, lateral, and vertical directions of the door. CONSTITUTION:One end of a lock shaft 3 is connected to a key 5 and links 5a, 5b mounted on a door 2, and it is laterally movable by the guide of a shaft guide 3b. A lock pin 4 is mounted on the door 2, and inserted into the hole of a pin receiver mounted on a body 1. When a longitudinal breaking force is added to the locking device part, this is resisted by the lock shaft 3, and when a lateral breaking force is added, it is resisted by the lock pin 4. Further, when a longitudinal breading force is added, it is resisted by the lock shaft 3 and the lock pin 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spit locking device, and more particularly to a locking device that is effective in preventing a door from being forced open.

[1 cup 1 from J] In the conventional locking device, as described in Utility Model Application Publication No. 59-92973, the restraint direction of the locking station is only one of the front and back direction and the left and right direction. Other directions in the left direction and up and down directions were not constrained.

[Problem to be solved by the invention]

In the locking device of the place, bb can be opened by prying open from the outside.
External forces act on the lock in all directions, or external forces can be basically broken down into three directional components: front and back, left and right, and up and down. Therefore, in order to force open a door, a structure and strength that can withstand external forces in the three directions mentioned above are required.

” 2. In the previous technology, as mentioned above, there is leakage in the binding direction of the door when it is locked, so if the side-opening cabinet is pushed to the left, or if it is pushed 1 inch to the top and bottom, the key loft will not close to the key loft claw. There was a possibility that it would come off and cause the side-opening cabinet to become spaced apart.

As in this example, if one of the three door restraining directions is missing, or - the locking parts that restrain each direction are not arranged so as to complement each other's restraining directions. , There was a problem that it was difficult to force the door open.In other words, if one locking part opens first by forcefully opening the door, the locking part with the restraining force in the other direction will not move in that direction. Even if the door had sufficient strength against the door, there was no resistance against the restraining force in the direction in which it opened first, so there was a problem that the door would open.

An object of the present invention is to provide a locking device that has sufficient resistance against external forces in the three directions mentioned above due to the opening of a door.

[Means to solve the problem]

In order to achieve the above purpose, the locking part of the door should be
A locking section that has a restraining force against external forces in three directions (up and down) is provided, and each locking section is located close to each other or at the same position so as to complement each other's restraint directions. It was placed in In other words, by providing a protrusion on the door,
When the door is closed, a locking part whose protruding part fits into a hole in the main body and a movable part interlocked with the lock are provided on the door, and after the door is closed, the movable parts of the door are activated by operating the lock with the key. A locking part that fits into a hole in the main body is provided, and these locking parts are arranged close to each other or at the same position.

Depending on the size of the door and the strength of the door, one or more locking points may be provided.

[Effect]

The function of the locking portion will be explained when the rotation axis of the door is vertical, that is, when the door opens to the left or to the base.

The former locking portion restricts the vertical and horizontal directions of the door when the door is closed. The latter locking section locks the door in the vertical and longitudinal directions by inserting the movable part into the hole in the main body using a key. Therefore, these locking portions restrict the vehicle in three directions: front and back, left and right, and up and down.

Next, if these locking parts are located far apart from each other, the former locking part has no binding force in the front-back direction, so if force is applied to this locking part in the front-back direction, the door will deform, causing the door to deform.
The amount of catching between the protruding part of the door and the hole in the main body is reduced,
There is a possibility that this lock may become unlocked. When this locking part is unlocked, if force is applied to the latter locking part in the left-right direction, this locking part has no binding force in the left-right direction, so the main body deforms, causing the movable part of the door to There is a possibility that the hole will get caught in the hole and the lock will become unlocked in the same way, and the door may open after all.

However, according to the present invention, since the locking portions are located close to each other or in the same position, even if force is applied to the former locking portion in the front and back direction, the latter locking portion resists the force, making it difficult to easily open the lock. I can't open it.

On the other hand, even if you apply force to the latter locking part in the left and right direction,
The former lock part resists this, so it cannot be opened easily.

Furthermore, when the door and main body are large or the strength of the door and main body is weak, if the number of locking devices is small,
Since the span between the locking devices becomes long, if an external force is applied to the center of the span, the deformation of the door and main body becomes abnormally large, and the deformation also affects the locking device. Therefore, the amount of engagement between the protruding part of the shield of the locking part and the hole in the main body, and the amount of engagement between the movable parts of the door and the hole of the main body of the latter locking part are reduced, and there is a possibility that the shield may come off. The present invention is equipped with an appropriate number of locking devices depending on the size and strength of the door and main body, and the above-mentioned catch allowance, so that it cannot be opened easily.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 9. Figure 1 is an overall view of the present invention, Figures 2 and 3 are
Cross sections AA and BB are shown in the figures, respectively. In the figure,
1 is a main body, 2 is a door, the door 2 is supported by the main body by a hinge 6, and rotates to open to the right. Reference numeral 3 denotes a lock shaft attached to the door, which is guided by a shaft guide 3b, and is connected to a lock 5, links 5a, 51], and is rotated by rotating the lock 5 with a key (not shown), as shown in the figure. Move left and right. Reference numeral 3a denotes a shaft holder attached to the main body, and the lock shaft 3 enters a hole in the shaft holder 3a to restrain the shield vertically and in the front-rear direction. A lock bin 4 is attached to the door, and when the door is closed, it enters a hole in a bin holder 4a attached to the main body, and locks the door in the vertical and horizontal directions.

Catch allowance l between lock shaft 3 and shaft uke 3a
x, and the hooking distance +y between the cockbin 4 and the bottle holder 4a are determined to be appropriate dimensions depending on the magnitude of the external force used to force the opening and the strength of the door and main body. Further, the distance ev between the lock shaft 3 and the lock bin 11 is made as close as possible for mounting purposes, and the horizontal distance eH of the lock bin 4 from the left end of the door is also made as small as possible. In this example, lock shirt l = (XφI6 or more, lock bin diameter φ1G or more, ev = 50 or less, e H = 10
It is as follows.

Moreover, although this embodiment is a case in which two locking devices are used as described above, it is also possible to add more if necessary. Furthermore, in this embodiment, the locking device is equipped with a lock 5, but it is also possible to use only one lock 5 and connect the aforementioned links 5a and 5b to each locking part, so that each locking device can be linked with one lock. It is.

According to this embodiment, for example, when a force is applied in the front and back direction to the two-part locking section shown in FIG. do not have. Furthermore, if force is applied to force the door open in the left and right direction, the lock bin 4 will resist this force, so the door will not open smoothly. Furthermore, when a force is applied to force the opening in the vertical direction, the lock shaft 3 and the lock bin 1 resist this force, so the shield is not easily separated. If lock shaft 3 and lock bin 4
When the distance 2 v is large, if force is applied to the front i (direction) near the upper lock bin tl, the lock bin 11 will not have a restraining force in the front 1 (direction), so the door will move forward with the lock shaft: When the amount of deformation becomes larger than the catching distance 1y between the cockbin 4 and the bottle holder 4a, the lock bottle 4 comes off from the bottle holder 4d.In this state, a force is applied to the lock shirt l-3 in the vicinity of the lock shirt l-3 to force it open in the left and right direction. Since there is no binding force in the left and right direction on the lock shaft and the lock shaft; When the size becomes larger than IX, the lock shaft 3 comes off from the shirt I/uke 3a.Therefore, the two locking parts are completely unlocked. There is a possibility that it will come off if you apply force to the opening. 1iev between the opening and link shaft 3 and lock bin 4 is 21
8, the amount of deformation of the door in the front and back direction is simply 8.
18 (proportional to the cube of ev), so it is important to reduce this interval ev. In other words, the rigidity of the door,
If the catching distance 1y is the same, if the opening distance ey is set to 172, the force of the opening resistance will be eight times greater, and the effect will be tremendous.

Furthermore, the smaller the left-right dimension eH of the lock bin 1 from the left end of the door, the stronger the lock bin 1a will be.
Resistance to opening is strong and effective. In this embodiment, the lock bin 4 or the lock shaft 3 is located in the north of the two, but even if it is located at the bottom, it has the same locking ability.

In this structure, even if the hinge part on the right side in Figure 1 is destroyed, the locking part on the left side in Figure 1 is restrained in the front and rear, left and right, and up and down directions, so it will not be possible to open rR. However, it cannot be opened easily. Further, in this embodiment, the hinge part is provided on the right side and the locking part is provided on the left side, but it goes without saying that the same locking ability is obtained even when the hinge part is provided on the left side and the locking part is provided on the right side.

In Fig. 1, the gap between the lock shirt l-3 and the lock bin t1 in Fig. 1 is ev = o, that is, the same 1 vertical position.
L″ii, and the components are the same as No. 1 I71.
− is. Since ev:=o, the locking ability is stronger than in the case of FIG.

5 and 6 show the case where the locking portions of the lock shaft 3 and lock bin 11 in FIG. 1 are also attached to the hinge 6 side, and the locking ability is stronger than that in FIG. 1.

Figures 7 to 9 show the locking device when the structure is changed so that the gap between the door 2 and the main body 1 is located on both sides (in Figures 1 to 6, the clearance is located at the front). The parts are the same as in FIG.

〔Effect of the invention〕

As explained above, the present invention has 10.
It has a locking device that restricts the lower part of the L in three directions.
In addition, the locking parts with different binding directions are arranged close to each other or in the same position so as to complement each other in binding directions, and the locking device is arranged in an appropriate manner depending on the size and strength of the door and main body. Because of the large number of pieces, it has a sufficient resistance against force in any direction, and has the effect that it cannot be easily pried open.

[Brief explanation of drawings]

FIG. 1 is an overall view showing the door locking device of the present invention, and FIG.
The figures are a cross-sectional view taken along line A-A in Figure 1, Figure 3 is a cross-sectional view taken along line B-B in Figure 1, Figure 4 is a cross-sectional view of the second embodiment, Figure 5,
FIG. 6 is a sectional view of the third embodiment. Fig. 7 is a perspective view of the third embodiment, and Fig. 8 is A- of Fig. 7.
9 is a sectional view taken along line A, and FIG. 9 is a sectional view taken along line BB in FIG. l...Main body, 2...Door, 3...Lock shaft,
3a...Shaft uke, 4...Lock pin, 4a.
...Binuke, 5...tablets! Concave 4th Concave figure 1st surface

Claims (1)

[Scope of Claims] 1. A door locking device having a locking portion that restrains the door in the front-rear direction, left-right direction, and up-down direction in a device including a main body and a door on the opening/closing portion thereof. 2. The door locking device according to claim 1, wherein a locking portion that restricts one direction and a locking portion that restricts a different direction are arranged close to each other. 3. The door locking device according to claim 1, comprising one or more door locking devices.