JPH0335018Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field] The present invention relates to a door opening/closing mechanism.

[Conventional technology]

Conventionally, door opening/closing mechanisms have involved forming protrusions or recesses called handles on the surface of the door, and placing your fingers on these to open and close the door.In addition, a lock release mechanism has been provided, and the door can be opened and closed using a reset button. There was something that could unlock a door and open a closed door.

[Problem that the invention attempts to solve]

However, these mechanisms complicate the shape and structure of the door and are subject to various design constraints.

Additionally, it is necessary to touch the handle or reset button to open and close the door, which limits the ability to open and close the door.

Therefore, in order to improve this point, this invention
This provides a new door opening/closing mechanism without a handle or reset button.

[Means for solving problems]

According to the present invention, there is provided an arm that interlocks with the door and is biased in the direction in which the door opens, a slider that engages with and is pressed by the arm when the door is closed, and the slider that is connected to the arm. positioning means for alternately holding the slider in a first position and a second position each time the slider is pressed by the arm; and positioning means for coupling the arm and the slider when the slider is in the second position. and a coupling means for holding the door in a closed state.

〔Example〕

The present invention will be described in detail below based on embodiments shown in the drawings.

FIG. 1 is a side view with the door open, and a side plate 1 of the housing A is provided with a door 3 that can be opened and closed about a shaft 2. Link 5 with long hole 4 drilled in door 3
are placed almost at right angles. Further, a fixed shaft 6 is provided upright on the side plate 1, and an arm 7 is rotatably provided on this fixed shaft 6. The arm 7 is urged to rotate clockwise by a tension coil spring 8, and has a pin 9 erected at one end thereof, which engages with the elongated hole 4.

A so-called push switch 10 is provided on the side plate 1 and below the arm 7, and its internal structure is shown in FIGS. 2 to 4.

That is, the push switch 10 is composed of a single-acting cam 12 formed on a slider 11, and a pin 13 that is biased toward and engaged with the single-acting cam 12. The single-acting cam 12 consists of a plurality of single-acting cam grooves 14, as shown in FIG. Next, the single-acting cam groove 14 will be explained with reference to the diagram showing the height difference in Fig. 3.The first cam groove 14-1 is dogleg-shaped and slopes upward to the left in the diagram. . The second cam groove 14-2 is the same as the first cam groove 14-2.
This is a horizontal groove that is one step lower and is continuous with the third cam groove 14-3, which is a horizontal groove that is one step lower. The left end of the fourth cam groove 14-4 is located at the third cam groove 14-4.
The first cam groove 14-3 is lower than the first cam groove 14-3, and the right end thereof is higher than the right end of the first cam groove 14-1.

Note that the slider 11 is provided with electrical contacts (not shown), and depending on the position of the slider 11,
An illumination light bulb (not shown) in the housing A is made to blink.

A catch spring 15 is provided at the left end of the slider 11 as a coupling means for coupling the arm 7 and the slider 11 when the slider 11 is in a second position, which will be described later. At this time, the other portion 7-1 of the arm 7 is engaged with the other portion 7-1. The catch spring 15 comes into contact with a catch spring control pin 16 erected on the side plate 1 and moves together with the slider 11. The slider 11 has a spring 17
is constantly biased diagonally upward to the left.

In the structure as described above, the operation will be explained next.

First, when the door 3 in the open state as shown in FIG. 1 is pressed in the closing direction (clockwise), the link 5 integrated with the door 3 rotates clockwise as shown in FIG. Accordingly, the arm 7 connected via the pin 9 rotates counterclockwise against the tension coil spring 8, and one end 7-1 of the arm 7 enters between the slider 11 and the catch spring 15.

Further, when the door 3 is pressed, the slider 11 is pushed into the push switch 10 by the arm 7 against the spring 17. Then, the position of the single-acting cam groove 14 in contact with the tip of the pin 13 changes from the first position (A) of the first cam groove 14-1 (FIG. 4) to the second cam groove 14-1.
The slider 11 moves to position 2 (b), and the pushing of the slider 11 is restricted by the wall of the second cam groove 14-2. As a result, the door 3 stops at a position where it is pushed inward from the normal closed position to a certain extent as shown in FIG.

At that time, when you release your hand from the door 3, the tension coil spring 8 and the spring 17 cause the arm 7 to rotate clockwise, and the link 5 and the door 3 to rotate counterclockwise. 11 from the push switch 10. However, the pin 13 and the single acting cam groove 14
Since the engagement position with the second cam groove 14-2 shifts from the position B of the second cam groove 14-2 to the second position C of the third cam groove 14-3, the slider 11 is in the slightly pulled out position. Stop.

Accordingly, the arm 7 also rotates back slightly and then stops, and the door 3 is maintained in its normally closed state as shown in FIG. In other words, door 3 is locked. At the same time, the light bulb inside the housing A goes out.

Next, the case where door 3 is opened will be explained.

First, when the closed door 3 is lightly pressed as shown in Fig. 7, the arm 7 moves to the slider 11 as shown in Fig. 6.
into the push switch 10, and the engagement position of the pin 9 and the single acting cam groove 14 changes from the second position C of the third cam groove 14-3 to the fourth cam groove 14- Move to position 4 (d). This unlocks door 3.

Therefore, when the pressure on the door 3 that has rotated a little inside the housing A is released, the tension coil spring 8 and the spring 1 are released.
7, the arm 7 rotates clockwise, and the door 3 rotates counterclockwise to fully open (FIG. 1).
During the rotation, one end 7-1 of the arm 7 and the catch spring 15 are disengaged. The slider 11 is pulled out from the push switch 10 by the spring 17, and is stopped when the pin 13 and the first cam groove 14-1 engage with each other at the first position. At that time, the light bulb inside case A lights up.

In the above embodiment, the door is locked by a push switch, but it is not necessary to provide a switch, and the slider is
It is also sufficient to simply position it at the position and the second position.

By pressing the door 3 as described above, the door 3
It can be opened and closed, eliminates the need for conventional handles and reset buttons, and is not subject to various design restrictions. Further, the door can be opened and closed by pressing any part of the door, and a door opening/closing mechanism with excellent operability can be obtained.

[Effect of idea]

As described above, the present invention allows the door 3 to be opened and closed by pressing the door, eliminating the need for conventional handles and reset buttons, and eliminating various design restrictions. None. Further, it is possible to provide a door opening/closing mechanism that allows the door to be opened and closed by pressing any part of the door, and has excellent opening/closing operability.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention. Figure 1 is a side view of the opening/closing mechanism with the door open, Figure 2 is a perspective view of the main parts of the push switch, and Figure 3 is a single-acting cam. A cross-sectional view showing the height of the groove, Figure 4 is a plan view of the single-acting cam groove, Figure 5 is a diagram of the door being closed, Figure 6 is a diagram with the door pushed in, Figure 7 is a diagram with the door closed. Figure. In the figure, A is a housing, 1 is a side plate, 3 is a door, 7 is an arm, 8 is a tension coil spring, 10 is a push switch (positioning means), 11 is a slider, 12 is a single-acting cam, and 14 is a Single acting cam groove, 1
5 is a catch spring.

Claims (1)

[Scope of utility model registration request] an arm that interlocks with the door and is biased in a direction in which the door opens; a slider that engages with and is pressed by the arm when the door is closed; and the slider that is pressed by the arm. positioning means for alternately holding the slider in a first position and a second position at each time; and when the slider is in the second position, the arm and the slider are coupled to close the door. A door opening/closing mechanism characterized by having a coupling means for holding the door.