JPH0221519A - Push-button switch for elevator - Google Patents

Abstract

PURPOSE:To improve the assembling property of a luminous element and to realize a thin form of the whole body of a switch by making springs to enforce an operation body in the direction separating from a sheet-form switch into long size plate sprints, bending the both ends of the springs toward the operation body, and arranging them around the luminous element. CONSTITUTION:Springs to enforce an operation body 8 separating from sheet- form switches 2 are made into long size plate springs 22, and both ends of the springs are bent toward the operation body 8 and arranged around a luminous element 12. As a result, the inside of the cylinder of the operation body 8 is utilized as an installing space of the luminous body and the plate springs 22 are made in a flat form, while the both ends are pressed to the operation body 8. Consequently, a push-button switch for elevator in which a design to install a spring suitable excellently to manipulate from the outside is made easily, the assembling adaptability of a luminous element is good enough, and the spring property as a thin-form switch is adequate can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a pushbutton switch used in an elevator hall button, an in-car operation panel, etc.

[Conventional technology]

In recent years, pushbutton switches that operate with minute strokes have come to be used as pushbutton switches for elevators.

FIG. 6 and FIG. 1 are views showing a conventional elevator push button switch disclosed in, for example, Japanese Utility Model Publication No. 61-36015, and FIG. 6 is a longitudinal cross-sectional view.

(This is an expanded view of the orthogonal vertical cross section), and Figure 7 shows the 6
It is an enlarged view of the ■ part of the figure.

In the figure, (!) is a printed wiring board, (2) is a printed wiring board (11
It is a sheet-like switch fixed to the surface of the movable contact (3
).

O(6), which has a fixed contact (4) and a spacing piece (5) for forming a contact gap, is a cylindrical frame with a bottom fixed to the surface of the printed wiring board (1), and the bottom part is An opening (6a) is formed in the center of the bottom and in contact with the printed wiring board (1). (7) is an elastic body fitted into the opening (6a);
) is an operating body that is housed inside the frame (6) so as to be slidable in the axial direction thereof, and a protrusion (8a) that comes into contact with the elastic body (7) is formed at the lower end of the operating body. (A latching portion (8b) that engages with a part of 61 is provided protrudingly. (91 is a translucent cap fitted to the open end of the operating body (8).

al is a push spring provided between the frame body (6) and the operating body (8).

αυ is a socket installed at the bottom of the frame (6), and α is a light-emitting element that is attached to the socket αl1lc and stored in the empty space of the operating body (81).
Two pushers αG, two sockets) all, and two light emitting elements α2 are provided, although they are not shown.

The conventional elevator pushbutton switch is constructed as described above, and the operating body (81) is always pushed up by the force of the push spring αG and is pushed up by the engagement of the latch (8b) and the frame (6). Escape from the frame (6) is prevented.

At this time, the movable contact (3) and the fixed contact (4) of the sheet-like switch (2) are in an open state.

Here, if you press the cap (9) with your fingertip, the operating body (81
is lowered and the projection (8a) presses the elastic body (7).

The movable contact (3) and fixed contact (
4) comes into contact with. Furthermore, if this pushbutton switch is a call registration switch, the light emitting element α2 emits light along with the operation of the sheet-like switch (2), illuminating the cap (9) to indicate that a call has been registered.

[Problem to be solved by the invention]

In the conventional elevator pushbutton switch as described above, the operating body (8) is urged in the direction away from the sheet-like switch (2) by the push spring αIIC. The shape for storage had to be created in a minute space, and it was difficult to design a spring position with excellent operability.2 Good integration of the light-emitting element α2 and appropriate spring characteristics for a thin switch in a minute space were difficult. There is a problem.

This invention was made in order to solve the above-mentioned problems, and it has an easy design that accommodates a spring that is excellent for external operation, has good ease of incorporating a single light emitting element, and has appropriate spring characteristics as a thin switch. It is an object of the present invention to provide a push button switch for an elevator, which has the following characteristics.

[Means to solve the problem]

In the elevator pushbutton switch according to the present invention, the spring that biases the operating body in the direction away from the sheet-like switch is a long leaf spring, and both ends of the spring are bent toward the operating body to form a light-emitting element. They are placed around the area.

[Effect]

In this invention, two light-emitting elements are connected to a printed wiring board and housed in the cylinder of the operating body, and the spring is a leaf spring K, which is arranged around the light-emitting element, so that the mounting space for the two light-emitting bodies is used as the mounting space for the operating body. The inside of the cylinder is used.

In addition, the leaf spring is formed flat, and both ends thereof are pressed against the operating body.

〔Example〕

Figures 1 to 5 are diagrams showing one embodiment of the present invention.
The figure is a plan view (printed wiring board (1) and top board (c)
(removed), Fig. 2 shows If-1 in Fig. 1 [line sectional view, Fig. 3
The figures are a sectional view taken along the line m--s in FIG. 1, FIG. 4 is a plan view of the leaf spring, and FIG. 5 is a right side view of FIG. 4. Portions similar to those of the conventional device are designated by the same reference numerals.

In the figure, (2) is a sheet-like switch fixed to the surface of the printed wiring board (1), and (6) is a square cylindrical frame with a bottom fixed to the surface of the printed wiring board (1) with screws Q9. A square opening (6a) is formed at the center of the bottom. (7) is an elastic body provided on the sheet-like switch (2), f81ti
It is a rectangular cylindrical operating body housed in a frame body (6) so as to be slidable in its axial direction, and its lower end has two cylindrical protrusions (8a) that abut against the elastic body (7). A hook portion (8b) that engages with a part of the frame body (6) is provided protruding from the side surface. (9) is a translucent cap fitted to the open end of the operating body (81), (9A) is a translucent dial inserted between the cap (9) and the operating body (81), a 'a is a light emitting element mounted and connected on the printed wiring board (11) and housed in the cylinder of the operating body (8), @ is a light emitting element provided between the bottom of the frame (6) and the operating body (81) For example, 2 leaf springs, 15 m thick.
The spring part (2) is made of thin bronze plate, stainless metal plate, etc., and has both ends cut and bent toward the operating body (8).
2a) 91 are arranged on both sides of the light emitting element α2.

(c) is the front panel of the elevator's in-car operation panel.

A square hole (25a) is provided, and a cap (9) is loosely fitted into the hole so that it cannot be removed.

The operation of the elevator pushbutton switch constructed as described above is similar to that of the conventional device.

That is, the constant operating body (8) is pushed up by the leaf spring (A), and when the cap (9) is pressed, the operating body (81 is pushed down, and the sheet-like switch (11 is operated) via the protrusion (8a). Since the leaf spring (to) is formed flat, it can be placed in a small gap between the bottom of the frame (6) and the operating body (81), and is easy to assemble.

Since the spring portion (22a) of the operating body (8) is in contact with the corner of the operating body (8) and the leaf spring, the operation is smooth no matter where you press the cap (9), and stable operability is achieved. .

Further, since the five light emitting elements α2 can utilize the space inside the cylinder of the operating body (8), it is possible to reduce the thickness of the entire push button switch.

In the example, the sheet-like switch (2) is a movable contact (3).
Although the fixed contact (4) is constructed of two sheets, the fixed contact (4) may be provided on the printed wiring board +11. Also.

The movable contact (3) may be printed on a sheet with conductive paste or the like, or may be made of conductive rubber. ◇Furthermore, a plate-shaped leaf spring material with a click action is placed on top of the sheet-like contact. You may also do so.

Further, one light emitting element az may be one for surface mounting on a printed wiring board (11).

Furthermore, each of the leaf springs (2) may be composed of one piece.

It may be divided into multiple sheets. Also, leaf spring (2)
It is also possible to provide a hole in the frame body (6) and provide a protrusion in the frame body (6) so that they engage with each other so that the leaf spring (2) does not move. In this case, the spring that biases the operating body in the direction away from the sheet-like switch is a long plate, and both ends of the spring are bent toward the operating body and placed around the light emitting element, which prevents external interference. It is possible to easily design a spring that is immersed in operation, improve the ease of incorporating one light emitting element, and make the switch as a whole thinner.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of an elevator pushbutton switch according to the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line ■-■ in FIG. Figure 4 is a plan view of the plate spring in Figure 1, Figure 5 is a right side view of Figure 4, Figure 6 is a longitudinal sectional view showing a conventional elevator pushbutton switch, and Figure 7. is an enlarged view of the ■ part of the 8gt diagram. In the figure, (1) is a printed wiring board, and (2) is a sheet-like switch. (6) is a frame, (8) is an operating body, α2 is a light emitting element, and ■ is a plate. Note that the same reference numerals in each figure indicate the same or corresponding parts. Figure 1

Claims (1)

[Claims] It is housed in a bottomed cylindrical frame fixed to the printed wiring board so as to be slidable in the axial direction of the frame, and is separated from the printed wiring board by a spring disposed at the bottom of the frame. A cylindrical operating body that is biased in a direction is provided, and a sheet-like switch that is pressed by the operating body is arranged at a portion of the printed wiring board facing the operating body, wherein a sheet-like switch that is pressed by the operating body is arranged, and a sheet-like switch that is pressed by the operating body is arranged. and the spring is a long leaf spring, the end of which is bent toward the operating body and placed around the light emitting element. A push button switch for elevators characterized by: