JPS6212049Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a door opening/closing device used, for example, in a control room that houses various regulators of electronic equipment, and in particular provides a simple opening/closing mechanism for opening and closing the door by pushing the door. It is.

The present invention will be explained below according to embodiments shown in the drawings. FIG. 1 is a plan view of an embodiment of the present invention, and FIG. 2 is an exploded perspective view of the same embodiment. Here, 1 is a door whose one end is pivoted to a cabinet body (not shown) by a shaft 2 so as to be openable and closable, and the door 1 is always biased in the direction of opening by a spring 3. A locking projection 4 and a lock release rib 5 are attached to the other end of the door 1, and the locking projection 4 is normally engaged with a locking portion 7 at the tip of a movable member 6 as shown in FIG. and the door 1 is in a closed state.

The bottom surface 5a of the distal end of the unlocking rib 5 is formed with a curved surface having an appropriate radius (curvature) as shown in FIG. As shown in FIG. 2, the movable member 6 has a double plate structure connected at one end, and the movable member 6 is rotatable about a pin 9 on a mounting base 8 fixed to the cabinet body. It is placed on. Here, the upper plate 6' and lower plate 6'' of the movable member 6 have through holes 10 and 11, respectively.
A pin 9 is inserted into the through holes 10 and 11, and the movable member 6 is rotated about the pin 9. A spring 12 is further inserted through the pin 9 between the upper plate 6' and the lower plate 6'', and one end of the spring 12 is engaged with a locking pawl 13 provided on the mounting base 8, and the other end is engaged with a locking pawl 13 provided on the mounting base 8. The movable member 6 is locked by a locking pawl 14 provided on the lower plate 6'', thereby causing the movable member 6 to engage the spring 12.
It is constantly energized in the counterclockwise direction. However, since a stopper 15 is provided at the end of the mounting base 8, the rotation of the movable member 6 is stopped in the state shown in FIG. Further, the movable member 6 has an elastic thin release plate 16 integrally formed on the upper plate 6'. A contact plate 18 is integrally provided on the upper surface of the upper plate 6'. In FIG. 1, reference numeral 19 denotes a panel that covers the inside of the cabinet main body and forms the adjustment chamber 19.

To explain the opening/closing operation of the door, first, from the open state of the door 1, move the door 1 in the direction of the arrow shown in FIG.
When the door is pushed in and closed, the lower end surface 5a of the lock release rib 5 provided at one end of the door 1 comes into contact with the top of the lock release thin plate 16, and the end inclined surface of the locking protrusion 4 comes into contact with the movable member 6. It comes into contact with the stop part 7.
Note that since a curved surface is formed on the lower end surface 5a of the lock release rib 5, the lock release thin plate 16 is pushed down as the door 1 is pushed in at this time, and on the other hand, the lock release thin plate 16 is moved by contact with the end inclined surface of the engagement protrusion 4. Part 6
is rotated slightly clockwise. Within this rotation range, the top of the unlocking thin plate 16 is located on the lower surface of the unlocking rib 5 and remains pressed down. After that, the movable member 6 is returned slightly counterclockwise, and the locking protrusion 4 is locked to the locking part 7 of the movable member 6, and when the door 1 is released in this state, the door 1 will not move. It is locked in the closed position as shown in FIG.

Next, when the door is in the closed state as shown in FIG.
When the door 1 is pushed in even more forcefully, the movable member 6 is rotated to the position shown by the broken line. The top of the lock release rib 5 is removed from the lower surface position of the lock release rib 5 and protrudes upward again. When you release your hand from the door 1 in this state, the door 1 is opened by the elastic force of the spring 3, but at this time, the lock release rib 5 has a lock release thin plate 16 on the side.
is pulled out in a state in which the movable member 6 is brought into contact and slid, and at this time, the movable member 6 is in the state shown by the broken line, that is, in a state in which the engagement between the locking portion 7 and the locking protrusion 4 is released, and the door 1 is opened toward the front. .

Thus, in this embodiment, the door 1 is locked in the closed state by the first pushing operation, and the door 1 is opened again by the second pushing operation, so that the door 1 is opened and closed by a so-called push operation.

According to the door opening/closing device of the present invention, as described above, the door is rotatably supported at one end and provided with a locking protrusion and a lock release rib at the other end, and the door is always biased in the direction of opening. a first spring that has a locking portion at its tip and is rotated by contact with a locking protrusion and a lock release rib of the door;
a second spring biasing the movable member in the rotational direction so as to constantly engage the locking protrusion of the door; and a second spring elastically formed integrally with the movable member and abutting against the lock release rib when the movable member rotates. Since it is equipped with a thin lock release plate that maintains the unlocked state, the door can be easily opened and closed by pushing the door.Also, when the door is released from the closed state, the door lock is reliably released, making it possible to open and close the door as easily as possible. It is a device of great practical value as it has higher operational reliability than conventional mechanisms, and provides a simple feel in terms of operability and appearance.

Further, in the door opening/closing device of the present invention, since the lock release thin plate is integrated with the upper plate of the movable member, the structure is simple and it can be manufactured at low cost.

[Brief explanation of the drawing]

FIG. 1 is a front view of one embodiment of the device of the present invention, and FIG. 2 is an exploded perspective view of the same embodiment. 1...door, 3...first spring, 4...
Locking protrusion, 5... Lock release rib, 6... Movable member, 7... Locking portion, 12... Second spring,
16...Lock release thin plate.

Claims (1)

[Scope of utility model registration request] A door that is rotatably supported at one end and provided with a locking protrusion and a lock release rib at the other end, a first spring that is biased in the rotational direction to keep the door open at all times, and a locking portion at the tip. a second spring that urges the movable member in a direction of rotation such that the movable member is always engaged with the locking projection of the door; and a lock release thin plate which is elastically formed integrally with the movable member and comes into contact with the lock release rib when the movable member rotates to maintain the unlocked state, and the door is opened and closed by a push button operation. Door opening/closing device.