JPH035664Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention mainly relates to equipment storage boxes along railway lines.

Conventional Technology In the past, the doors of equipment storage boxes along railway lines had to be locked to prevent mischief by outsiders. Therefore, since these boxes have a structure that can only be opened with a key, there has been no technology for a box with a structure that allows the door to be opened without a key as in the present invention.

Problems that the invention aims to solve This invention was developed in consideration of the above matters, and its purpose is that in the past, the key to the box mentioned above was often kept only by the person in charge. In the event of an emergency, such as when an accident occurs, the door cannot be unlocked even if there is someone nearby, so it is impossible to immediately open the door and take appropriate action on the stored equipment. At a worksite, the box should be configured so that the person concerned can unlock it with a coin or screwdriver, etc., so that anyone who knows the structure of the box can easily open it without a key and prevent unauthorized persons from entering the box. The purpose is to provide a device that cannot be opened by outsiders.

Means to solve problems Next, the configuration of the present invention will be explained.

As the knob 3 provided on the door 2 rotates, the support rods 5 and 6 move up and down inside the door 2, and the door 2 and the box 1 are locked and unlocked. The lower part of the lower support rod 6 of the support rods 5 and 6 is inserted into the hole 10 of the holding piece 9 provided horizontally protruding from the door 2, and the holding piece 9 of the support rod 6 is inserted through the hole 10 of the holding piece 9. A hanging part 13 having a protrusion 12 at a distance
A lock main body 15 is provided with a bullet 14 interposed between the holding piece 9 and the hook part 13, and a lower plate 16 of the case 1 corresponding to the lower part of the support rod 6 is provided.
A rotary shaft 19 rotatably provided with a locking piece 21 that engages with the hook portion 13 is provided in a cylindrical body 18 having a base portion 17 provided therein, and a groove 22 is provided on the lower surface of the rotary shaft 19.
It further comprises a locking auxiliary part 25 which is provided with a cover piece 23 on the lower surface of the base part 17 that can open and close the lower surface.

Function The present invention has the above-mentioned structure, and when it is used, to unlock the lock, first rotate the cover 23 of the base 17 provided below the box 1 (as shown in Fig. 6). (as shown) expose the bottom surface of the rotating shaft 19, and
If you insert the tip of a coin or a screwdriver into the groove 22 on the bottom surface of 9 and rotate it against the force of the bullet 24,
The locking piece 21 provided at the upper end of the rotating shaft 19 also rotates, and at this time, the engagement with the hook 13 of the support rod 6 is released, and the support rod 6 is also moved upward by the force of the bullet 14. When the locking piece 21 is raised and returned to its original position by the force of the bullet 24, it will be located below the hook 13. When the knob 3 is rotated in this state, both the support rods 5 and 6 move up and down to disengage the box 1 and the door 2, allowing the door to be opened.

When locking the door next time, the above-mentioned operation is reversed.

Embodiment Next, one embodiment of the present invention will be described based on the drawings.

A knob 3 is rotatably provided approximately at the center of one side of a door 2 rotatably provided on the box 1, and a support extending vertically on a disc 4 inside the door 2 of the knob 3. Bars 5 and 6 are provided, and the upper end of the upper support bar 5 is provided with a substantially L-shaped latch part 8 that can engage and unlock the upper edge 7 of the case 1, and the lower end of the lower support bar 6 is provided with a door. There is no possibility that the holding piece 9 provided on the lower inner surface of the case 2 can be inserted into the hole 10 made to protrude horizontally and be engaged with and unlocked from the lower edge 11 of the case 1. A hanging part 1 having a protrusion 12 at a certain distance above the
3 is attached, and a bullet 14 is interposed in the support rod 6 between the hook portion 13 and the holding piece 9 to apply a force to the support rod 6 to constantly raise it upward.
5, and separately, a cylindrical body 18 having a base part 17 is provided on the lower plate 16 of the box 1 corresponding to the lower part of the support rod 6, and the base part 17 is exposed outside the lower plate 16, and the cylinder body 18 is provided with a base part 17. 18 is provided in the case 1, a rotary shaft 19 is rotatably installed in the cylindrical body 18, a base 20 is connected to the upper end thereof, and a hanging portion of the support rod 6 is attached to the upper surface of the base 20. 1
A locking piece 21 is provided which can be engaged with and unlocked from the rotating shaft 1 and whose tip elastically moves in and out.
A groove 22 is provided on the lower end surface of the base part 17, and a cover piece 23 that covers the lower end surface of the base part 17 is rotatably provided at an eccentric position on the lower end surface. Place the base 2 in a position corresponding to the hanging part 13.
0 and a locking auxiliary part 25 provided with an ammunition 24.

In addition, 26 in the figure is a pin indicating the position of the locking auxiliary part 25.

Effects of the invention Since the present invention has the above-mentioned structure, it is simple in structure and easy to manufacture, and can be locked and unlocked very easily by a person who understands the structure of this device. In the case of an emergency such as an accident occurring along a railway line, if there is a person involved at the scene nearby, they can open the equipment storage box and take appropriate measures quickly, even if they do not have the key to the equipment storage box. Furthermore, even if an outsider tries to open the door, he or she will not be able to do so easily unless he or she knows the structure of the device, so it is extremely effective in practical use.

[Brief explanation of the drawing]

Figure 1 is a side view showing one embodiment of the present invention;
The figure is a back view of the lock main body, which is one of the components of the present invention, FIG. 3 is a front view showing the knob, which is one of the components, and FIG. 4 is a chain, which is one of the components. 5 is a side view showing the locking auxiliary part, which is one of the constituent members; FIG. 6 is a bottom view showing the locking auxiliary part, which is one of the constituent members; 7th
The figure is a perspective view showing the state of use of the present invention. 1...Box, 2...Door, 3...Knob, 5, 6...
...Support rod, 9...Holding piece, 10...Hole, 12...
Protruding piece, 13... hanging part, 14... bullet, 15... lock body, 16... lower plate, 17... base part, 18...
Cylindrical body, 19... Rotating shaft, 21... Locking piece, 22...
...Groove, 23...Cover piece, 25...Lock auxiliary part.

Claims (1)

[Scope of utility model registration request] As the knob 3 provided on the door 2 rotates, the support rods 5 and 6 move up and down inside the door 2, and the door 2 and the box 1 are locked and unlocked. The lower part of the lower support rod 6 of the support rods 5 and 6 is inserted into the hole 10 of the holding piece 9 provided horizontally protruding from the door 2, and the holding piece 9 of the support rod 6 is inserted through the hole 10 of the holding piece 9. A hanging part 13 having a protrusion 12 at a distance
A lock main body 15 is provided with a bullet 14 interposed between the holding piece 9 and the hook part 13, and a lock body 15 is separately provided on the lower plate 16 of the case 1 corresponding to the lower part of the support rod 6. The hanging portion 1 is placed inside the cylindrical body 18 having the base portion 17.
A rotary shaft 19 is provided with a rotatable locking piece 21 that engages with the rotary shaft 19, a groove 22 is provided on the lower surface of the rotary shaft 19, and a cover piece 23 that can open and close the lower surface is provided on the lower surface of the base portion 17. A locking device for an equipment storage box, characterized in that it is comprised of a locking auxiliary part 25 provided.