JPH0612140Y2 - Magnetic locking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a device for closing an opening of a box, which is locked and unlocked by a magnet.

[Prior Art] A conventional locking device that locks a lid of a box body or the like in which important devices and operation members are provided inside has a key hole in the lid, and a key is inserted into the lid to lock and unlock. Since it is configured as described above, it can be seen that there are important members, devices, etc. inside by looking at the key hole opened in the lid, and there is a risk that the key may be unlocked illegally by a duplicate key or wire. For this reason, in the past, unauthorized unlocking was prevented by attaching a blind cover to the key hole or using a complicated locking mechanism.

[Problems to be Solved by the Invention] In the conventional key-insertion type locking device as described above, it is not preferable to secure safety because it is not possible to hide the presence of the locking device even if a blindfold lid is attached. There was a point.

Therefore, the present invention provides a magnetic locking device that does not require a key hole.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the magnetic locking and closing device of the present invention uses a magnetic keyboard instead of an insertion key, and the magnetic locking closing member A is made of a non-magnetic material. It is composed of a screw closing portion 1 and a rotary lid portion 2. The screw closing portion 1 loosely fits a movable iron rod 15 into an eccentric loose fitting hole 14 and a screw disk portion 12 is provided at a lower end thereof. The portion 2 is provided with an eccentric fitting recess 25 on the lower surface and an engaging portion 22 on the upper surface, and the rotary lid portion 2 is rotatably attached to the upper end portion of the screw closing portion 1 to form a magnetic lock closing body A. The magnet keyboard B has a magnet 41 embedded in the lower surface of the disk 4 and an engaging portion 42. The magnet keyboard B is movable according to the rotary lid portion 2 of the magnetic lock closing body A. Magnetically attracting the tip of the iron rod 15 with magnetic force to insert recess 25
Screwing closed portion 1 of magnetic lock closing body A
Is configured to be rotatable and to be locked and unlocked.

[Operation] The above-mentioned magnetic lock closing body A is for closing the screwing disc portion 12 at the lower end of the screwing closing portion 1 by screwing it into the opening of the box body to be closed so as to close like a lid. As described above, the magnetic lock closing body A mounted in the box opening cannot be removed from the box opening because the screwing closing section 1 does not rotate even if the rotary lid section 2 is rotated and the screwing closing section 1 does not rotate. It has been locked in a disabled state.

Movable iron rod 15 eccentrically provided on the screw closing portion 1
When the magnetic keyboard B is applied to the rotary lid 2, the magnetic iron of the magnetic keyboard B is attracted and the tip of the movable iron rod is rotated.
It is fitted into a fitting recess 25 provided eccentrically on the lower surface of the.

The rotary lid portion 2 rotatably attached to the upper end portion of the screw closing portion 1 moves the screw closing portion 1 and the rotary lid portion 2 when the movable iron rod tip portion is fitted into the fitting recess 25 as described above. When the rotary lid 2 is rotated together with the magnetic key board B, the screwing closing portion 1 is also rotated, so that it can be removed from the box opening, that is, the removal. Magnetic lock closure A that was mounted in the box opening in an impossible locked state
Will be removed and unlocked.

The engagement portion 22 on the upper surface of the rotary lid portion 2 and the engagement portion 42 on the lower surface of the magnet keyboard B are engaged with each other when the magnet keyboard B is applied to the rotation lid portion 2 as described above. Therefore, if the magnetic keyboard B is rotated as described above, the screw closing portion 1 is also rotated.

The magnetic locking / closing device of the present invention does not require a key hole for locking / unlocking by rotating the magnetic locking / closing member A screwed into the box opening as described above to attach / detach. Is performed using.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows the magnetic locking and closing device of the present invention. Fig. 1 shows the front of the magnetic locking and closing device, Fig. 2 shows its longitudinal section, and Fig. 3 is an exploded perspective view of each member. FIG. 4 shows the upper surface of the rotary lid, FIG. 5 shows a tubular box to which this magnetic locking and closing device is applied, and FIG. 6 shows a magnetic lock closed at the open end of the tubular box. FIG. 7 shows a state in which the device is mounted, and FIG. 7 is a sectional view showing a state in which the magnetic key board B is applied to the magnetic lock closing body A for explaining the operation.

First, the magnetic locking device of the present invention comprises a magnetic lock closure A and a magnetic keyboard B for locking and unlocking the magnetic lock closure A as shown in FIGS. 1, 2 and 3.

The magnetic lock closing body A is composed of a screw closing portion 1 made of a non-magnetic material such as brass and a rotary lid portion 2.

The threaded closing part 1 is formed by projecting the upper end of the cylinder to the outer peripheral edge to form a locking edge 11 and forming a screw 13 on the outer peripheral surface of the threaded disk 12 at the lower end, to form the center of the threaded closing part 1. A loose fitting hole 14 is vertically provided at a position eccentric to and a rod-shaped movable iron rod 15 is loosely fitted in the loose fitting hole 14. The length of the movable iron rod 15 is formed so that the upper end of the movable iron rod is located at the upper edge of the loose fitting hole 14 when the lower end of the movable iron rod 15 is fitted into the bottom of the loose fitting hole 14.

As shown in FIG. 4 showing the upper surface of the circular lid plate 21, the rotary lid portion 2 is formed on the upper surface of the lid plate 21 so as to engage with the magnetic keyboard in a recess or the like on the diametrical line. Part 22 is provided and the lid plate
A short tubular fitting portion 23 is provided on the lower side of the protruding portion 21, a circumferential groove 24 (third shown in the figure) for fitting a C ring is provided on the inner peripheral surface of the fitting portion 23, and a lower surface of the lid plate 21 is provided. Is provided with a fitting recess 25 into which the upper end of the movable iron rod 15 is fitted at a position eccentric from the center.

The fitting portion 23 of the rotary lid portion 2 is loosely fitted to the upper end of the threaded closing portion 1 and the C ring 26 is fitted in the circumferential groove 24 on the inner peripheral surface of the fitting portion 23 to fit the threaded closing portion 1. Attach the lower surface of the locking edge 11 at the upper end of the C ring 26
By pressing down with, the fitting portion 23 of the rotary lid portion 2 is loosely fitted to the upper end of the screw closing portion 1 and the rotary lid portion 2
Is rotatably attached to the upper end of the threaded closing portion 1, and the magnetic lock closing body A is constructed in this manner.

In the magnet keyboard B, a magnet 41 is embedded in the lower surface of the disk 4, and an engaging portion 42 formed in a convex portion or the like is provided so as to face the diameter line. The engaging portion 42 is an engaging portion on the upper surface of the rotary lid portion 2.
It is formed in such a position and size that it can be fitted into 22.

The magnetic lock closure A is a cylindrical box C as shown in FIG.
It is used as a lid to be attached to and detached from the upper end opening 5 of this, and this attachment and detachment is performed by screwing the screw 13 of the screwing disk 12 at the lower end of the screwing closing portion 1 into the female screw 51 on the inner circumference of the box as shown in FIG. Attach it, and turn the screwing closed part 1 to remove it. The magnetic key board B is used to rotate the screw closing portion 1 to be attached to and detached from the box C as described above, and the magnet key board B is placed on the lid plate 21 of the rotary lid portion 2 as follows. To rotate.

First, when the magnetic keyboard B is not in contact with the cover plate 21 as shown in the second drawing, the upper end of the movable iron rod 15 loosely fitted in the loose fitting hole 14 of the threaded closing portion 1 has a loose fitting hole. It does not project from the upper edge of 14, and the rotary lid portion 2 is loosely fitted to the upper end of the threaded closing portion 1 and is free to idle. In this state, even if the rotary lid portion 2 is rotated, it will idle. The screwing closing part 1 does not rotate due to the force.

Therefore, the magnetic lock closing body A is attached to the upper opening 5 of the box C as shown in FIG. 6, and the screw 13 of the screwing disk portion 12 at the lower end of the screwing closing portion 1 is screwed into the female screw 51 on the inside of the box. In the engaged state, the threaded closing portion 1 does not rotate even if the rotary lid portion 2 is rotated, so that it cannot be removed from the box opening, and the box opening is closed by the magnetic lock closing body A. It is locked and locked so that it cannot be removed.

As shown in FIG. 7, first, the magnetic key board B is placed on the rotary lid portion 2 to remove the magnetic lock closing body A which is thus locked and locked from the box opening. The engaging portion 42 on the lower surface of the board is fitted into the engaging portion 22 on the upper surface of the lid plate 21. When the lower surface of the magnetic key board B is brought into contact with the upper surface of the lid plate 21 in this manner, the magnet 41 embedded in the lower surface of the magnetic key board is loosely fitted into the loose fitting hole 14 of the threaded closing portion 1 of the magnetic lock closing body A. This movable iron rod 15 is attracted by magnetic force and pulled up.
The upper end of 15 rises over the upper edge of the loose fitting hole 14 and the rotating lid 2
Fit into the fitting recess 25 on the lower surface of the. In this way, the lower half part of the movable iron rod 15 is a loose fitting hole at the eccentric position of the threaded closing part 1.
When the upper end of the movable iron rod is fitted into the fitting recessed portion 25 at the eccentric position of the rotary lid portion 2 while being fitted into 14, the threaded closing portion 1 and the rotary lid portion 2 are mutually moved by the movable iron rod 15 in the eccentric position. It is in a state of being connected and locked so as not to rotate, so that when the rotary lid portion 2 is rotated, the screw closing portion 1 also rotates.

Then, the magnet keyboard B is rotated on the rotating lid portion 2 and the engaging portion 42 on the lower surface of the magnet keyboard is fitted and engaged with the engaging portion 22 on the upper surface of the lid plate 21 to rotate the magnet keyboard B. By doing so, the screw 13 of the screwed disc portion 12 screwed into the female screw 51 of the box C is reversely rotated to remove the magnetic lock A from the box opening.

When the magnetic lock closing body A is attached to the open end of the box as described above and the lid is closed, it is not known that there is a locking device because the lid does not have a key hole. This is done by the magnetic keyboard B which does not require holes.

In the above-mentioned embodiment, the case where the magnetic lock closing body A is mounted in the state where the box C is opened upward is explained, but when the opening of the box C is placed sideways or downward, the box C is opened.
May be placed in a vertical position with the opening facing upward, and the magnetic lock closure A may be attached and detached as described above.

Further, when the box C cannot be vertically arranged as such, when the opening faces downward, the magnetic lock closing body A is installed upside down, so that the movable iron rod 15 is inserted by gravity into the rotary lid 2. It is necessary to prevent it from falling into the recess 25, and when the opening is sideways, the magnetic lock closing body A is to be mounted sideways, so the magnetic attraction force of the magnetic keyboard B causes the tip to rotate. It is necessary to return the movable iron rod 15 fitted in the fitting recess 25 of the second member 2 to the free fitting hole 14 in the lateral direction of the threaded closing part 1 when the magnetic key board B is removed. The movable iron rod 15 which is loosely fitted in the loose fitting hole 14 of the joint closing portion 1 is temporarily held in the loose fitting hole 14 by a weak spring, and the holding force of the spring is inserted by the movable iron rod 15 by gravity. A spring retainer that does not fall into the recess 25 but is fitted into the fitting recess 25 by the magnetic attraction force of the magnetic keyboard B. When the magnetic lock closing body A is mounted sideways on a box body having a horizontal opening, the movable iron rod 15 is loosely fitted in the screw closing portion 1 when the magnetic key board B is removed. The spring holding force may be such that it is pulled back into the hole 14.

The magnetic lock closing body A of the present invention closes the opening of the box C like a lid, and the box C is not limited to the one having the entire outer shape as described above, but may be any suitable one. The cover plate 21 may be shaped, and the shape of the cover plate 21 is formed in conformity with the shape of the opening end of the box body.

Further, in the illustrated embodiment, in order to rotatably fit the rotary lid portion 2 onto the upper end of the screw-in closing portion 1, the fitting portion 23 protruding below the lid plate 21 of the rotary lid portion 2 has a short tubular shape. Although the fitting portion 23 is formed in a shaft shape, it may be loosely fitted around the upper end of the threaded closing portion 1 in a freely rotatable manner. Further, the engaging portions 22 and 42 provided on the upper surface of the lid plate 21 and the lower surface of the magnet keyboard, respectively, may be formed in an appropriate shape that engages with each other, instead of forming concave grooves or ridges as shown in the drawing. It's good.

[Advantages of the Invention] As described above, the present invention has a magnetic lock closing body in which a rotary lid portion having a fitting recessed portion is rotatably attached to an upper end portion of a screwing closing portion in which a movable iron rod is loosely fitted, and a magnetic keyboard. And the magnetic key board is applied to the rotary lid of the magnetic lock closing body to rotate the magnetic lock closing body and attach it to the open end of the box for locking and unlocking. Since it is not known that there is a locking device, there is no danger of being unlocked improperly, and safety can be ensured.

[Brief description of drawings]

1 is a front view of the magnetic locking and closing device, FIG. 2 is a longitudinal sectional view thereof, FIG. 3 is an exploded perspective view, FIG. 4 is a top view of a rotary lid portion, FIG. 5 is a perspective view of a box, FIG. 6 is a usage state diagram, FIG.
The figure is a sectional view for explaining the operation. A: magnetic lock closing body 1: screwing closing portion 12: screwing disc portion 15: movable iron rod 2: rotating lid portion 22: engaging portion 25: fitting recess B: magnet key board 4: disc 41: magnet 42: Engagement part

Claims (1)

[Scope of utility model registration request] 1. A magnetic lock closure A and a magnetic keyboard B are provided.
The magnetic lock closing body A is an eccentric fitting recess 25 on the lower surface of the upper end portion of the non-magnetic material screwing closing portion 1 in which the movable iron rod 15 is eccentrically loosely fitted and the screwing disk portion 12 is provided at the lower end. And a rotation lid portion 2 made of a non-magnetic material having an engagement portion 22 on the upper surface thereof is rotatably attached.
And the engaging portion 42 is provided, and the magnetic key board B is brought into contact with the rotary lid portion 2 of the magnetic lock closing body A to move the movable iron rod 15.
A magnetic locking and closing device, characterized in that the front end of the magnetic lock closing member is fitted into the fitting concave portion 25 by magnetic attraction to rotate and lock and unlock the magnetic lock closing member A.