JPH0132249Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an indicator light used in a switchboard, a control panel, etc.

Conventionally, light bulbs or neon bulbs have been used as the light source for this type of indicator light, but recently there has been a trend toward the use of light emitting diodes (LEDs). When this light emitting diode is used as a light source, it is dark, so it is necessary to arrange a reflective plate around the light emitting diode. If the reflector was provided as a separate member, the frame of the indicator light could not be integrated, making installation and positioning difficult. Therefore, in view of the above-mentioned circumstances, the present invention is to form the reflector itself integrally with the frame, and also to enable it to be used as an illuminated pushbutton, and to connect the reflector to the guide tube of the frame. The connecting piece is placed in a receiving groove on the side wall of the opening side of the lens and is brought into contact with the receiving groove, and the holding piece protruding from the side wall of the lens is engaged with the front plate of the frame body to serve as an indicator light. On the other hand, when the lens holder is placed behind the front plate of the frame, the opening end surface of the lens is brought into contact with the holder, and the engaging piece is engaged with the holder to connect the lens and the holder. Furthermore, the side wall of the push button is provided with relief grooves to avoid interference with the connecting piece during sliding, thereby making it an illuminated push button.

Hereinafter, the present invention will be described in detail based on specific embodiments shown in the accompanying drawings.

A guide tube 4 for guiding a cylindrical cap-shaped lens 3 in an internally fitted manner is provided in a protruding manner on the front surface of a front plate 2 of a frame body 1. A reflecting tube 5 is housed in the lens 3 at the center of the guide tube 4.
are arranged with a connecting piece 6 interposed therebetween. A light emitting diode is placed in the insertion hole 7 at the center of the reflection tube 5, and its inner surface is formed into a mortar shape and is painted to reflect the light from the light emitting diode. It is arranged on a line and connected to the front plate 2. The two connecting pieces 6 can be arranged not only in a straight line but also in arbitrary positions.

The lens 3 is in the shape of a cylindrical cap, and is formed in a shape that can be fitted internally into the guide tube 4 from its opening side, and has an opposing receiving groove 8 on the side wall of the opening side for receiving and abutting the connecting piece 6. The side wall is angled at 45 degrees with respect to the receiving grooves 8, 8.
A protrusion 10 is provided on the outer periphery of the tip. Incidentally, when the connecting pieces 6, 6 are arranged at arbitrary positions, the holding pieces 9, 9 are provided protruding from the side walls apart from the receiving grooves 8, 8. This lens 3 is fitted inside the guide tube 4,
By receiving the connecting piece 6 into the receiving groove 8 and abutting it, and by engaging the clamping piece 9 with the front plate 2, the lens 3 is attached to the front plate 2 of the frame body 1 to form an indicator light.

On the other hand, a lens holding stand 11 is provided behind the front plate 2 of the frame body 1.
When the lens 3 is placed, the opening end surface 12 of the lens 3 is brought into contact with the front surface of the holding base, and the holding piece 9 is
The engaging piece 1 has a protrusion 13 on the outer periphery of the tip, which is slightly longer than the clamping piece 9, on the side wall at a position swung at 90 degrees.
4 and 14 are provided protrudingly, the front plate 2 is inserted through the opening of the lens 3, and the end surface 1 is placed on the front surface of the lens holding base 11.
2 are brought into contact with each other, and the engaging piece 14 is inserted into and engaged with the engaging hole 15 formed in the holding base 11. Receiving holes 16, 16 are formed at positions slanted by 90 degrees with respect to the engaging holes 15, 15, and the tip of the clamping piece 9 is inserted into the receiving hole 16 when engaging with the engaging hole 15 of the lens holder 11. Set it so that it is located at . In addition, when the connecting pieces 6, 6 are arranged at arbitrary positions, the engaging pieces 14, 14 are provided protrudingly on the side wall that avoids the receiving grooves 8, 8 and the clamping pieces 9, 9, and Reception holes 16, 16 are provided at positions where the pieces 9, 9 face each other.
to be engraved. An escape groove 17 for avoiding interference with the connecting piece 6 is carved in the side wall on the lens opening side so that the lens 3 and the lens holder 11 can slide in the axial direction. The indicator light is connected to the lens 3 and the lens holder 11 by engaging the engagement piece 14 into the engagement hole 15 of the lens holder 11 so that the escape groove 17 fits into the connecting piece 6.
When directly connected, the lens holding stand 11 is always in contact with the front plate 2 of the frame body 1 because its back side is urged toward the front plate 2 by the coil spring 18, but when the lens 3 is pushed in, Lens holding stand 11
moves backward against the urging force of the coil spring 18, and becomes an illuminated push button. In addition, when this indicator light is actually used, the top opening of the frame body 1 is closed with a lid body 19, and a micro switch 20 is attached to the mounting hole 22 of the instrument panel 21, as shown in FIG. The guide tube 4 is inserted and engaged, and the ring 24 is screwed onto the thread 23 carved on the outer peripheral surface of the guide tube 4 to attach it.

When assembling this indicator light as an illuminated push button, remove the lens 3 of the indicator light, place the lens holder 11 behind the front plate 2 of the frame 1, and place the lens 3
With the lens 3 rotated by 90 degrees, the engaging piece 14 engages with the engaging hole 15 of the lens holder 11, allowing the lens 3 and the lens holder 11 to slide freely.

As mentioned above, the present invention has a guide tube protruding from the front surface of the front plate of the frame that guides the cap-shaped lens in a manner that fits inside the guide tube, and a connecting piece that connects the reflection tube housed in the lens in the center of the guide tube. The lens is inserted into the guide tube, the connecting piece is received and brought into contact with a receiving groove carved in the side wall on the opening side, and the clamping piece protruding from the side wall is configured to engage with the front plate. On the other hand, when the lens holder is placed behind the front plate of the frame, the lens is fitted into the guide tube, its open end surface is brought into contact with the holder, and the engaging piece protruding from the side wall is engaged with the lens holder. This is an indicator light that is configured to fit together and has a relief groove carved into the side wall of the lens opening side to avoid interference with the connecting piece when sliding.The frame and reflector are integrated, and the reflector can be attached easily. There is no difficulty in positioning or positioning. In addition, there is no need for screw members (nut members) for slidably attaching the lens to the frame as in the past, reducing the number of parts.Furthermore, the lens can be sufficiently connected and fixed by simply fitting it into the frame, making it easy to connect. is extremely easy.

[Brief explanation of drawings]

The drawings show a specific embodiment of the present invention; Fig. 1 is an exploded perspective view showing the main parts of the invention, Fig. 2 is a longitudinal cross-sectional view of the frame, and Fig. 3 is a front, side, and rear view of the lens. Figure 4 is a cross-sectional view of an indicator lamp in which a lens is connected to the front plate of a frame body, Figure 5 is a cross-sectional view of an illuminated pushbutton in which a lens is connected to a holding base placed inside the frame body, and Figure 6 The figure is an external view of an indicator light that is actually used. DESCRIPTION OF SYMBOLS 1... Frame body, 2... Front plate, 3... Cap-shaped lens, 4... Guide tube, 5... Reflector tube, 6... Connecting piece, 8... Receiving groove, 9... Clamping piece, 11 ... Lens holding stand, 12 ... Opening end surface, 14 ... Engagement piece.

Claims (1)

[Scope of utility model registration request] A guide tube for guiding the cap-shaped lens in a manner that fits inside the frame is provided protrudingly on the front surface of the front plate of the frame body, and a reflection tube to be accommodated in the lens is placed in the center of the guide tube with a connecting piece interposed therebetween. A connecting piece is fitted into the guide tube and received in a receiving groove carved in the side wall of the opening, and a clamping piece protruding from the side wall is configured to engage with the front plate,
On the other hand, when the lens holder is placed behind the front plate of the frame, the lens is fitted into the guide tube, its open end surface is brought into contact with the holder, and the engaging piece protruding from the side wall is engaged with the lens holder. What is claimed is: 1. An indicator lamp characterized in that an escape groove is carved in a side wall on the lens opening side to avoid interference with a connecting piece during sliding.