JPH0211694Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a switch with an indicator lamp that operates the operation of a machine such as an electronic copying machine and displays the operating status of the machine.

[Conventional technology]

Conventionally, a lamp that displays the operating status of the machine operated by the switch is placed near a switch that operates in response to a pressing force, and a switch that operates the switch surrounds the lamp. 2. Description of the Related Art A switch with an indicator lamp that is provided with an operating member is known.

[The problem that the idea aims to solve]

However, in this switch with an indicator lamp, the light beam from the lamp directly hits the surface of the switch operating member.
That is, since the part touched by the operator's fingers is irradiated, there is a drawback that the temperature of the surface part of the switch operating member becomes too high.

In order to overcome this drawback, it has been proposed to reduce the power given to the display lamp, but this is not preferable because it darkens the display section and reduces the ability to make the display easy to understand.

SUMMARY OF THE INVENTION An object of the present invention is to provide a switch with an indicator lamp that causes a small temperature rise on the surface of a switch operating member and has a bright surface.

[Means to solve the problem]

In order to achieve the above object, the switch with an indicator lamp according to the present invention includes a switch that operates in response to a pressing force, and a switch that has a translucent surface portion for operating the switch by applying a pressing force to the switch. an operating member; an indicator lamp disposed inside the switch operating member and displaying the operating state of the machine whose operation is operated by the switch;
A space is provided between the base of the switch operating member, which is a constituent member of the switch operating member that surrounds the indicator lamp, and is formed separately from the surface portion from a material that transmits infrared rays, and the surface portion. It is characterized by comprising a filter that prevents heat transfer from the lamp to the surface by convection, transmits visible light, and reflects infrared rays.

[Effect]

According to the present invention, there is a transmission of convection from the lamp to the surface between the display lamp placed near the switch and the surface of the switch operation member surrounding the lamp and operating the switch. By providing a filter that prevents heat and transmits visible light but reflects infrared rays, the filter reflects infrared rays from the lamp, prevents infrared rays from leaking to the surface side, and prevents infrared rays from leaking to the surface side due to convection. This also prevents the temperature of the surface of the switch operating member from increasing.

〔Example〕

Hereinafter, the present invention will be described in detail based on an illustrated embodiment.

In the figure, reference numeral 1 indicates a holding outer box, and this holding outer box 1 is fixed to a support plate 2. This holding outer box 1 is made of a material that transmits infrared rays. A switch 3 for controlling the operation of the machine is provided at the bottom of the holding outer box 1, and this switch 3 is operated in response to pressure from a finger or the like. A lamp 5 whose surface is colored green is arranged in the holding outer box 1. These lamps 4 and 5 display the operating state of the machine operated by the switch 3, and their blinking is controlled by a device (not shown) depending on the purpose of use. The reason why there are two green lamps 4 and one red lamp 5 is to compensate for the lack of green light, since the green component in the emission spectrum of small incandescent bulbs is less than the red component. .

A box-shaped switch operating member 6 is slidably housed in the holding outer box 1 so as to be above the switch 3 and surrounding the lamps 4 and 5. The switch 3 can be operated by pressing the surface portion 6a of the switch operation member 6 with a finger or the like. A pressing spring 7 is provided between the bottom of the switch operating member 6 and the bottom of the holding outer box 1, and when the pressing force from the switch operating member 6 is released, the spring 7
The switch operating member 6 is pushed up to return the switch operating member 6 to the state in which it does not press the switch 3.

The switch operation member 6 has a translucent surface portion 6a that is touched by fingers and has a display function.
and a base 6b housed in the holding outer box 1, and the lamps 4 and 5 are attached to the base 6b of the switch member 6 by a holder (not shown) or the like.
Fixed on the side. Note that the wiring for the lamps 4, 5 and the switch 3 is omitted from illustration.

Surface portion 6a and base portion 6 of the switch operating member 6
b, that is, between the surface portion 6a and the lamps 4, 5, is arranged with a space between the surface portion 6a and the lamps 4, 5 to prevent heat transfer due to convection from the lamps 4, 5 to the surface portion 6a, and to prevent visible light from being transmitted. A filter 8 is provided to reflect infrared rays that pass through the rays.

This filter 8 may be attached with its periphery fixed to the side wall of the member constituting the surface portion 6a side,
Alternatively, it may be simply sandwiched and attached between the surface portion 6a and the base portion 6b. The above filter 8 is attached to the surface part 6
When fixed on the a side, the filter 8 can be removed at the same time as the surface portion 6a is removed when replacing the lamps 4 and 5.

The base portion 6b of the switch operating member 6 surrounding the lamps 4 and 5 is made of a material that transmits infrared rays in order to dissipate heat from the lamps 4 and 5. The base 6b of the switch operating member 6 and the outer holding box 1 do not necessarily need to be made of a material that transmits infrared rays, but if they are made of a material that transmits infrared rays, the base 6b of the switch operating member 6 and the outer holding box 1 may be made of a material that transmits infrared rays. It has the advantage of being able to effectively suppress the rise in temperature. Furthermore, even if the holes 9 are formed in the base 6b of the switch operating member 6 and a part of the outer holding box 1, an increase in temperature can be effectively prevented.

The filter 8 is preferably a plastic sheet with gold or silver vapor-deposited on it, or a Nesa glass or glass with gold or silver vapor-deposited on it.

The base 6b of the switch operating member 6 and the outer holding box 1 are mostly made of natural or white plastic, which is a material that transmits infrared rays well.
It may be formed using these.

It is preferable that the surface portion 6a of the switch operating member 6 be formed using a milky white acrylic resin, and that a large number of grooves be formed on the surface facing the lamps 4 and 5 to better diffuse light.

Incidentally, the blinking of the lamp may be such that a lamp of a specific color is blinked. Alternatively, the lamp may be a non-colored incandescent bulb and a colored filter may be provided separately. Furthermore, the lamp may be an uncolored incandescent bulb and the filter 8 may be colored. In this case, it is desirable to color the surface of the filter 8 on the side opposite to the lamp in order to avoid a decrease in infrared reflectance.

Now, with the above-configured switch with indicator lamp,
An infrared reflective filter 8 disposed between the indicator lamps 4 and 5 and the surface portion 6a of the switch operation member 6
As a result, the infrared rays emitted from the lamps 4 and 5 toward the surface portion 6a are reflected, and the surface portion 6a of the switch operating member 6 is prevented from being irradiated with infrared rays. Further, since the filter 8 is provided with a space between it and the surface portion 6a, the filter 8 acts as a partition wall, and prevents the heat of the lamp from being transmitted to the surface portion due to convection.

That is, the filter 8 prevents the constituent material of the surface portion 6a from absorbing infrared rays in a certain wavelength range and being heated, and also prevents the heat of the lamps 4 and 5 from being transferred to the surface portion 6a by convection. It also prevents damage.

Therefore, in the switch with an indicator lamp of the present invention, the temperature of the surface portion 6a that is touched by the fingertips is prevented from rising, and since the base portion 6b of the switch operating member surrounding the indicator lamps 4 and 5 transmits infrared rays, The switch operation member base 6b is not heated by the reflected infrared rays from the reflection filter 8 or the radiant heat from the indicator lamps 4 and 5, and therefore heat is not transferred from the switch operation member base 6b to the surface portion 6a of the switch operation member 6. It can also be prevented from being transmitted.

[Effect of idea]

As explained above, according to the present invention, the temperature rise on the surface of the switch operating member is small, and
It is possible to provide a switch with an indicator lamp whose surface part is bright.

[Brief explanation of the drawing]

The figure is a sectional view showing a switch with an indicator lamp according to the present invention. DESCRIPTION OF SYMBOLS 1... Holding outer box, 2... Support plate, 3... Switch, 4, 5... Lamp, 6... Switch operating member, 6a... Surface portion of switch operating member, 6b...
...Base of switch operating member, 7...Spring,
8...Filter.

Claims (1)

[Scope of utility model registration request] a switch that operates in response to a pressing force; a switch operating member having a translucent surface for applying a pressing force to the switch to operate the switch; An indicator lamp that displays the operating status of a machine whose operation is operated by a switch, and a component of the switch operation member that surrounds the indicator lamp, and are formed separately from the surface part by a material that transmits infrared rays. The lamp is disposed between the base of the switch operating member, the surface portion and the indicator lamp, and is provided with a space between the surface portion and the display lamp to prevent heat transfer from the lamp to the surface portion due to convection. A filter that transmits visible light and reflects infrared rays,
A switch with an indicator lamp.