JPH0545720Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a locker door opening/closing device using an electric lock.

(Prior art) When an electric lock in which a solenoid is combined with a latch (for example, Utility Model Application No. 69,717) is attached to a locker, etc., if the latch hole in the locker body is narrow, the edge of the hole and the latch may touch each other during operation. The receiving hole is generally made considerably larger than the cross section of the latch, since irregular resistance between the surfaces may cause the latch to not fit fully into the receiving hole.

(Problem to be solved by the invention) However, if the receiving hole is made too large, a gap will be created between it and the latch, which may cause the door to rattle within the main body stile when the door is locked.

Furthermore, when a large number of lockers are centrally managed, there is an inconvenience that if the administrator sends an electric signal to each locker, the locks will be unlocked all at once, causing confusion as the doors may be opened inadvertently.

This invention prevents rattling by pressing one side of the latch against a large receiving hole when the lock is locked, and also prevents the latch from moving (retracted) by the electric power alone even if the solenoid is energized. The above-mentioned drawbacks are avoided by allowing the latch to be smoothly removed from the receiving hole only when the latch is pulled away.

(Means for Solving the Problems) The configuration of the present invention to achieve the above object will be explained with reference to the drawings. Figure 1 is a plan view of the locker door opening/closing device of the present invention when it is locked, and Figure 2 is a plan view of the locking door opening/closing device of the present invention. A front view of the interior of the provided lock box, Figures 3 and 4 are views in the direction of arrow A in Figure 1 when it is locked and unlocked, and Figure 5 is a view of the door support ammunition as seen in the direction of arrow B in Figure 2. FIG. 6 is a plan view of an ammunition attachment part using a micro switch with a spring as an ammunition, and FIG. 7 is a schematic front view of a rocker in which the present invention is implemented.

In the drawing, 1 is the Rockcar body, 2 is the door, 3
is a lock box attached to the back of the door, which houses a solenoid 4 that is linked to the door surface or an external key switch, and a latch 7 that operates from the solenoid 4 in the left and right direction via a link 5 and a spring 6. .

11 is a receiving hole provided at a position opposite to the outer end of the latch 7 of the rocker body 1;
3 is pressed against a part of the rocker body 1 for supporting the door, and the repelling force of the bullet 12 causes the front surface a of the latch 7 to touch one edge b of the receiving hole 11 when the door is closed and locked. Apply pressure.

Further, as the ammunition 12, a limit switch-like one as shown in FIG.
In addition to the micro-switch with a spring shown in Figure 6, ordinary leaf springs, springs, etc. may be used, and the ammunition mounting positions may also be located above and below the door, in addition to those shown in the illustration.

In the figure, 21 is a push plate, 22 is a numeric keypad that sends a signal to the solenoid 4, and 23 is a finger press section.

(effect) Explain the following effects.

When closing the door, when the door 2 is pushed into the entrance stile of the main body 1, the latch 7 compresses the spring 6 when it faces the edge corner of the main body 1, and once it leaves, it faces the front of the receiving hole 11. When it is inserted into the hole by the pressure of the spring 6, it is locked with one touch.

At this time, as shown in FIG. 1, one end 13 of the bullet 12 attached to the door 2 comes into pressure contact with the front surface of the rocker body 1, and as shown in FIG. pressed against.

When opening the door, operate the numeric keypad 22 or send a signal from the central control room to act on the solenoid 4, which attempts to move the latch 7 out of the receiving hole 11 via the connecting rod 5, but the As shown in FIGS. 1 and 3, the front surface a of the latch 7 is pressed against one side edge b of the receiving hole 11, so the frictional force at this portion causes only the tensile force of the solenoid 4 (FIG. 2) to be applied. Then latch 7
does not move and remains locked.

When the door is pushed lightly backwards in the above state (it is convenient to place an appropriate mark as the finger push part 23 on or near the push plate 21 in FIG. As well as being pushed back from the first page,
As shown in FIG. 4, the contact parts a and b of the latch 7 and the receiving hole 11 are separated, eliminating external friction, and the latch 7 is smoothly removed from the receiving hole 11 by the force of the solenoid 4 and locked. The door is pushed forward by the force of the bullet 12 and can be opened.

(Effects) As mentioned above, the locker door opening/closing device of the present invention can be opened and closed with one touch, there is no rattling of the door while the door is closed, and when the door is opened, an electric signal is sent from the numeric keypad attached to the locker or from the central control room. Even if the solenoid is activated by the latch, the latch will remain in the closed position, and only when the door is pushed backwards will the frictional resistance between the latch and the hole be released and the door be unlocked. It has the advantage that there is no risk of it opening.

The device of the present invention can be applied not only to ordinary lockers but also to general storage cabinets and other doors.

[Brief explanation of the drawing]

Figure 1 is a plan view of the Locker door opening/closing device of the present invention.
Figure 2 is a front view of the inside of the lock box, Figures 3 and 4 are views in the direction of arrow A in Figure 1 when it is locked and unlocked, Figure 5 is a view of the door support ammunition in Figure 2, arrow B. A directional view, FIG. 6 is a plan view of a bullet attachment part using a micro switch as a door support bullet, and FIG. 7 is a schematic front view of a locker in which the present invention is implemented. 1...Rotscar body, 2...Door, 3...Lock box,
4... Solenoid, 5... Link, 6... Spring, 7... Latch, 11... Receiver, 12... Bullet machine,
13... One end of the bullet, a, b... The opposing parts of the latch and the receiving hole.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A rocker door in which a latch 7 is provided on the back side of the door 2 and is moved forward and backward by a solenoid 4, and a receiving hole 11 is provided in the portion of the rocker body 1 that faces the latch, A bullet 12 is disposed on the back side of the door, and one end 11 engages with the receiving hole 11 of the rocker body 1 when the door is closed, and also acts to press the front surface a of the latch 7 against one side edge b of the receiving hole 11. Locker door opening/closing device consisting of. (2) The locker door opening/closing device according to claim 1, wherein a limit switch 12 having a crimp spring is used as the ammunition 12. (3) The locker door opening/closing device according to claim 1, wherein a micro switch with a spring is used as the ammunition 12.