JPH10106381A - Back illumination type push-button switch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a back illumination type push-button switch capable of preventing shaking of a display plate and making an appearance attractive by fixing the display plate to a cap. SOLUTION: A display plate is pressed against the inside of a cap 62 with a fixing member 66 and fixed. The display plate is constituted with a light diffusion film 56, a color film 58, and a display film 60. The fixing member 66 has an L-shaped cross section, and is fixed to the cap 62 in a horizontal part 66a with an adhesive or a pressure sensitive adhesive double coated tape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlit type used in a vending machine, a vending machine, a machine tool, etc. (a light source is provided at a rear portion of a display panel and emits light from the surface side of the display panel). (Type) pushbutton switch.

[0002]

2. Description of the Related Art FIG. 4 shows a conventional backlit push button switch (1). This pushbutton switch
(1) is a switch body (2) using a plurality of 7 segments (3, 3) as a light source, a cover member (4) for protecting the switch body (2), and a destination in the case of an automatic ticket vending machine. And a cap (6) that protects the display panel (5) and turns on the switch section of the switch body (2).

[0003] The display plate (5) has a transparent portion through which light passes.
(7), a destination display section below which a destination is displayed (8)
Is provided. The cap (6) is made of a transparent or translucent synthetic resin material.

The push button switch (1) can display the numbers of the segments (3, 3) via the cap (6) by replacing the display plate (5). In the illustrated example, the light of the segment (3, 3) is
An example is shown in which light is emitted via a. Therefore, the letters "Tokyo" on the destination display section (8) and the light from the transparent section (7) thereover are displayed via the cap (6).

The cap (6) is formed with a pair of pressing pieces (9, 9) extending left and right toward the switch body (2). The pressing piece (9, 9) turns on the switch of the switch body (2) by pushing the switch piece (10) provided on the switch body (2) with the tip.

As described above, the conventional back-illuminated push button switch (1) has the above-described configuration. However, the push button switch (1) is turned on by pressing the cap (6). Since the switch piece (10) of 2) is pressed, a stroke is required until the switch piece (10) is pressed. That is, a predetermined space is required between the segment (3, 3) and the cap (6), and the display plate (5) is interposed in the space. In other words,
In order to press the switch piece (10) with the cap (6), it is necessary to interpose the display plate (5) with some allowance.

Thus, the segment (3, 3) and the cap (6)
When the display plate (5) is interposed so as to be able to press the cap (6), the display plate (5) is swung in the space as shown in FIG. , As a push button switch.

In view of this, it is conceivable to interpose a display plate (5) so as not to allow a margin in the space. In this case, the pressing pieces (9, 9) of the cap (6) are used to press the switch body.
The switch piece (10) of (2) is always pressed, and the switch may break down, which is not preferable.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned point, and has a display panel having a good appearance by fixing the display panel to a cap so that the display panel is shaken. It is an object of the present invention to provide a push button switch.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a switch piece having a plurality of segments (50, 50).
(72) a switch body (52), and the switch body (5
2) a thin plate having a cover member (54) into which the switch body (52) is inserted, a window part (74) at the top, and a display part (76) with a guide display printed at the bottom. Display means,
A cap (62) having a transparent surface plate (64) and having pressing pieces (78, 78) on both sides for pressing the switch pieces (72).
And a fixing member (66) for pressing the display means against the inside of the surface plate (64) of the cap (62) to fix the display means so as not to move. .

A specific example of the display means is a light diffusion film for diffusing light emitted from the segment (50, 50).
(56), a color film (58) for changing the light of the segment (50, 50) to red, and a display unit (76) having a transparent window (74) at the top and a guide display printed at the bottom. And a display film (60) having the following.

The fixing member (66) has an L-shaped cross section having a horizontal portion (66a) and a vertical portion (66b).
a) Adhere double-sided adhesive tape on the back of
It was fixed by attaching to the bottom surface (80) of (62). Further, an adhesive may be used instead of the double-sided adhesive tape.

[0013]

The thin plate-shaped display means is fixed to the inside of the cap (62) of the push button switch (28) by the fixing member (66). By this fixing, the display means is securely fixed and does not move.

[0014]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG.
Shows an example in which the backlit push button switch according to the present invention is applied to an automatic ticket vending machine as an example.

In FIG. 1, the automatic ticket vending machine (20) has a ticket vending machine main body (22) and a customer service surface (24) arranged in front of the ticket vending machine main body (22) and inclined toward the front side. I have. This customer service surface (24)
Has a guidance display section (26) for guiding the user at the top thereof. A plurality of push button switches (28, 28) according to the present invention are provided substantially at the center of the customer service surface (24). (3
0) is an adult selection button, and (32) is a child selection button. (34) is a coin insertion slot for inserting coins, and on the left side thereof, an amount display section (36) for displaying the inserted amount is arranged.

At the lower part of the customer service surface (24), a bill insertion slot (38) for inserting bills, a fishing bill receiving port (40) for receiving fishing bills, and a change receiving money for receiving change. An opening (42) and a catching type ticket receiving opening (44) for holding the issued ticket so as not to fly out are arranged.

The push-button switches (28, 28) are illuminated and displayed only for the displayable destination names within the range of the inserted amount of money. The user can purchase a ticket to the station where he / she wants to get off by selecting and pressing the destination switch from the lit push button switches (28, 28).

FIG. 2 is a perspective view showing one of the pushbutton switches (28, 28) according to the present invention shown in FIG. 1 in an enlarged and disassembled state.

In FIG. 2, the push button switch (28)
A switch body (52) using a plurality of seven segments (50, 50) as a light source, a cover member (54) for protecting the switch body (52), and light from the segments (50, 50). A light diffusion film (56) that diffuses light to make the
Color film (58) for brightening the light from the segments (50, 50) and display film for displaying the destination
(60) and these light diffusion films (56) and color films (5
8) and display film (60) to protect the switch body (5
A cap (62) for turning on the switch of 4), and the light diffusion film (56), the color film (58) and the display film (60) are fixed to the surface plate (64) side of the cap (62). And a fixing member (66).

The switch body (52) includes side plates (6) on both sides.
8, 68) (only one is shown in the figure) has a notch (70) cut out from the front to the rear. On the rear side of the notch (70), the tip of a switch piece (72) formed of one conductor for constituting a switch is viewed. When the switch piece (72) is pushed rearward, a contact portion (not shown) is closed and the switch is turned on.

The cover member (54) has a rectangular cylindrical shape and is made of a synthetic resin material. This cover member (5
4) has the same shape as the switch body (52),
The cover is inserted into the switch body (52).

The light diffusion film (56) has a segment (5)
It diffuses light so that the weak light of (0) becomes bright light emission, and forms a thin film. As a material of the light diffusion film (56), for example, a polyester film or the like is used.

The color film (58) is a thin colored film so as to clearly show the light from the segment (50) to the user. In this embodiment, a red film is used as the color film (58), but another color may be used. As a material of the color film (58), for example, a polyester film or the like is used.

The display film (60) is formed with a window (74) for transmitting the light from the segment (50), and the window (74) is transparent, but other windows are provided. The color is white. A destination display (76) on which station names and the like are printed is provided below the window (74). As a material of the display film (60), for example, a polyester film or the like is used.

The light diffusion film (56), the color film (58), and the display film (60) constitute display means corresponding to a conventional display panel.

The cap (62) is made of a transparent plastic material.
Pressing piece (78, 78) for pressing switch piece (72) of (52)
Are integrally provided so as to extend rearward. The pressing pieces (78, 78) are notched (7) in the switch body (52).
0,70), and by pressing the cap (62), the tip of the pressing piece (78, 78) presses the switch piece (72) provided on the switch body (52), and the switch is turned on. It has become.

The light emitted from the segment (50) passes through the light diffusion film (56), the color film (58), and the window (74) of the display film (60), and the surface plate ( The station name and the like emitted from the display film (60) and printed on the destination display section (76) of the display film (60) can be visually recognized by the user from the transparent cap (62).

The fixing member (66) has an L-shaped cross section including a horizontal portion (66a) and a vertical portion (66b). The fixing member (66) is, as shown in FIG.
6), the color film (58) and the display film (60) are pressed against the inner surface of the surface plate (64) of the cap (62) to fix them. In order to fix these films (56, 58, 60) so as not to move by the fixing member (66), an adhesive or a double-sided adhesive tape is used on the lower surface of the horizontal portion (66a) of the fixing member (66). The cap (62) is fixed by attaching it to the bottom surface (80). At this time, the vertical part of the fixing member (66)
(66b) plays a role of supporting the film (56, 58, 60). The material of the fixing member (66) is usually made of a metal such as aluminum, but may be made of a synthetic resin.

In the embodiment shown in the figure, each film (56, 58, 6
As an example of using the L-shaped fixing member (66) as a means for fixing (0), the film (56, 58, 60) using a sponge or a leaf spring as an alternative thereto. May be fixed.

Further, a light diffusion film (56), a color film (58) and a display film (6
Although 0) is described as being composed of three films, it may be composed of one thin display panel like the display panel shown in the conventional example.

[0031]

As described above, according to the present invention, the thin plate-shaped display means is fixed to the inside of the cap of the push button switch by the fixing member, so that the display means is securely fixed and moves. It has good appearance and is easy for users to see.

[Brief description of the drawings]

FIG. 1 is a perspective view of an automatic ticket vending machine using a push button switch according to the present invention.

FIG. 2 is an exploded perspective view in which a push button switch is enlarged.

FIG. 3 is an enlarged sectional view showing a state in which a display unit is fixed to a cap.

FIG. 4 is an exploded perspective view of a conventional push button switch.

FIG. 5 is a schematic side view showing the operation of a conventional display panel.

[Explanation of symbols]

 50 segment 52 switch body 54 cover member 56 light diffusion film 58 color film 60 display film 62 cap 64 surface plate 66 fixing member 72 switch piece 74 window section 76 destination display section 78 pressing piece 80 bottom surface

Claims (3)

[Claims] 1. A switch body (52) having a plurality of segments (50, 50) and having a switch piece (72), wherein the switch body (52) is inserted and the switch body (5) is inserted.
A cover member (54) for covering 2), a thin plate-shaped display means having a window part (74) at the upper part, and a display part (76) at the lower part of which a guidance display is printed, and a transparent surface plate (64), a cap (62) having a pressing piece (78, 78) on each side for pressing the switch piece (72)
And a fixing member (66) for pressing the display means against the inside of the surface plate (64) of the cap (62) to fix the display means so as not to move. Type push button switch. 2. The method according to claim 1, wherein the display means is configured to display the segment (50, 5
(0) and a light diffusion film (56) for diffusing light emitted from the color film for changing the light of the segment (50, 50) to red.
(58) and a display film (60) having a transparent window (74) on the upper part and a display part (76) printed with a guidance display on the lower part. Item 2. A backlit push button switch according to item 1. 3. The fixing member (66) has an L-shaped cross section having a horizontal portion (66a) and a vertical portion (66b).
The backlit type according to claim 1 or 2, wherein a double-sided adhesive tape is attached to the back surface of the (66a), and is fixed by attaching to the bottom surface (80) of the cap (62). Push button switch.