JP2011243355A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device used for a meter panel, a switch panel and a name plate, having excellent dustproofness and waterproofness.SOLUTION: The lighting device is provided with: a molded resin component (an upper side case 11) integrally resin-molding a transmitting part 110 made of a translucent resin material and a non-translucent part 111 made of a non-translucent resin material; a support member (a lower side case 12) which is placed on the backside of the molded resin component and is made of a non-translucent resin material; and a light source 3 supported by the support member. The transmitting part 110 is illuminated by the light source 3 arranged in the back of the molded resin component. A translucent cylindrical wall part 1100 projecting toward the rear side of the molded resin component is provided integrally with the transmitting part 110 so that the translucent cylindrical wall part 1100 covers an outer periphery of the light source 3.

Description

  The present invention relates to an illumination device such as a meter panel, a switch panel, and a name plate mounted on, for example, a motorcycle, a construction machine, an agricultural machine, a ship, a snow bike, a water bike, and the like.

  In this type of lighting device, for example, as disclosed in Patent Document 1, a switch box that houses a switch is provided behind the switch panel, and the switch is housed in the switch box. .

  In addition, a light source is provided on the side of the switch box, and a display unit (for example, a display unit indicating the operation state of the switch) such as characters and symbols provided on the switch panel is transmitted and illuminated by the light of the light source. Is provided.

Japanese Utility Model Publication No. 53-49351

  By the way, as shown in Patent Document 1, a conventional illumination device such as a display panel is exposed to rainwater or dust because the light source itself is installed beside the switch box behind the switch panel. There is a problem that it is easy to be done.

  For this reason, in the case where the light source lamp, LED, or the like is electrically routed to the outside, for example, the light source lamp and the lamp from the lamp to the outside are made of synthetic rubber at the location where they are led out by the electrical cord via the connection terminal. By covering with a socket, the connection terminal portion is prevented from being corroded and the energized state is kept stable.

  In addition, in order to guide the light of the lamp, which is a light source, to the display part of the switch panel, it is impossible to block the periphery of the light source with a waterproof / dust-proof wall, so the light source lamp or LED light emitting part The part may be exposed to rainwater or dust.

  The present invention has been made by paying attention to this point, and in a lighting device such as a meter panel, a switch panel, and a name plate mounted on a construction machine, an agricultural machine, a motorcycle, etc., a lighting device excellent in dust resistance and waterproofing is provided. It is intended to provide.

  In order to solve the above-described problems, the present invention provides a resin molding comprising a transmissive portion made of a translucent resin material and a non-transmissive portion made of a non-translucent resin material as described in claim 1. A molded resin part formed integrally with a support member made of a non-translucent resin material provided behind the molded resin part, and a light source supported by the support member, In the illuminating device that illuminates the transmissive portion with the light source disposed behind the molded resin component, the transmissive cylindrical wall portion that protrudes to the back side of the molded resin component is provided so as to cover an outer periphery of the light source. It is characterized by being provided integrally with the transmission part.

  By comprising in this way, it can suppress that a light source becomes dirty with a water | moisture content, dust, etc. directly by covering the circumference | surroundings of a light source (light emission part location) with a translucent cylindrical wall part. In addition, the cylindrical wall that covers the light source is integrally molded from the transmission part, which is a molded resin part, so the number of parts does not increase and the transmission part is illuminated without being blocked by the light emitted from the light source. can do.

  Moreover, in the illuminating device according to claim 1, in claim 2, the cylindrical portion disposed so as to partially overlap the protruding end portion of the cylindrical wall portion is integrally formed from the support member. It is characterized by this.

  Accordingly, the protruding end portion of the cylindrical wall portion formed integrally from the transmission portion which is a molded resin part and the end portion side of the cylindrical portion formed integrally from the support member are provided so as to partially wrap. As a result, it is possible to prevent water droplets or the like from entering the light source from the outside, and the waterproofness can be further improved. Further, the heat generated from the light source is provided so that the protruding end portion of the cylindrical wall portion and the end portion side of the cylindrical portion are partially wrapped, so that the portion to be wrapped (gap portion) It is possible to dissipate heat from the outside.

  Further, in the lighting device according to claim 1 or 2, in claim 3, a sheet plate provided with a permeable index portion is arranged on the front side of the molded resin part. .

  With this configuration, the light beam from the light source is transmitted through the transparent cylindrical wall portion, and the indicator portion of the sheet plate is transmitted and illuminated through the transmission portion of the molded resin component. At this time, it is possible to perform transmission illumination with an arbitrary hue by setting the hue of the index portion.

  In the present invention, a molded resin part formed by integrally molding a transmission part made of a translucent resin material and a non-transmission part made of a non-translucent resin material, and the molded resin A support member made of a non-translucent resin material provided behind the component, and a light source supported by the support member, and illuminating the transmissive portion with the light source disposed behind the molded resin component The illuminating device is characterized in that a transparent cylindrical wall portion protruding toward the back side of the molded resin part is provided integrally with the transmissive portion so as to cover the outer periphery of the light source. By covering the periphery of the light source (light emitting portion location) with the light-transmitting cylindrical wall portion, it is possible to prevent the light source from being directly contaminated with moisture or dust. In addition, the cylindrical wall that covers the light source is formed by molding integrally from the transmission part that is a molded resin part, so the number of parts does not increase and the transmission part is not blocked by the light emitted from the light source. It is possible to illuminate, whereby the initial purpose can be achieved.

FIG. 1 is a front view of an illumination device showing a first embodiment of the present invention. FIG. 2 is a cross-sectional view taken along line AA showing the main part of FIG. FIG. 3 is an enlarged cross-sectional view showing a main part of FIG.

  Hereinafter, based on an accompanying drawing, it explains based on an embodiment which applied the present invention to an illuminating device in a switch panel of a construction machine.

  1 to 3 show a first embodiment of the present invention, and the embodiment of the present invention will be described below based on these. 1 is a front view of a lighting device in a switch panel of a construction machine according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line AA showing the main part of FIG. 1, and FIG. FIG. 3 is an enlarged cross-sectional view showing a main part of FIG. 2.

  In the figure, as the lighting device according to the present embodiment, a control box is provided beside or in front of the driver's seat of the construction machine, and a switch panel member P as an operation panel is provided in the vicinity of the control box. . In this case, the switch panel member P is placed in a case 1 made of synthetic resin as an exterior member (a storage space by the upper case 11 and the lower case 12), an ignition switch S1, a wiper switch S2, an illumination light switch S3, etc. Is housed or fixed.

  The upper case 11 is formed by a molded resin part formed by integrally molding a transmissive part 110 made of a translucent resin material and an impermeable part 111 made of a non-translucent resin material. ing.

  Further, on the surface side of the upper case 11, a sheet plate 2 provided with a transparent indicator portion 2a such as letters, numbers, or picture displays indicating the operation states of the switches S1, S2, S3 is attached.

  Further, in this embodiment, the lower case 12 illuminates the transmissive part 110 made of a translucent resin material, or illuminates the light source 3 (illumination lamp) for transmissively illuminating the indicator part of the sheet plate 2. Is provided as a support member for assembling and fixing.

  The light source 3 is electrically routed to a battery on the power source side of the construction machine via a wiring terminal 4 through a connection terminal (not shown), and the illumination lamp as the light source 3 is surrounded by a synthetic rubber socket 3a. By covering with, the corrosion of the connection terminal portion is prevented and the energized state is kept stable.

  Each switch S1, S2, S3 is electrically routed to the battery on the power source side of the construction machine via the wiring cord 4 in the same manner as the light source 3.

  Further, as shown in FIG. 2, an opening hole portion 11a of the upper case 11 is provided at a portion of the transmitting portion 110 made of a translucent resin material provided in the upper case 11 that is a molded resin part. The key cylinder of the ignition switch S1 is inserted into the portion 11a and fixed.

  At this time, the sheet plate 2 is formed with an opening hole 2b having a diameter larger than that of the opening hole portion 11a of the upper case 11, and the peripheral portion of the opening hole portion 11a of the upper case 11 is discriminated from the front surface by the opening hole 2b. It is provided as a ring-shaped transmission part 110a so that it can be.

  On the back side of the ring-shaped transmission part 110a, a reflection surface 110b for reflecting and guiding the light beam emitted from the light source 3 is formed.

  In the present embodiment, a transparent cylindrical wall portion 1100 that protrudes toward the back side of the upper case 11 that is a molded resin part is integrally provided from the transmission portion 110 so as to cover the outer periphery of the light source 3. .

  Further, the lower case 12 serving as a support member for supporting the light source 3 is integrally provided with a cylindrical portion 120 disposed so as to partially overlap the protruding end portion of the cylindrical wall portion 1100 from the lower case 12. Is provided. At this time, in this embodiment, as shown in FIG. 3, the cylindrical wall portion 1100 provided in the upper case 11 with respect to the outer diameter dimension of the cylindrical portion 120 provided in the lower case 12. The outer diameter dimension of the cylindrical wall portion 1100 is set to be large, and a transparent gap G is set between the wall portion serving as the inner diameter of the cylindrical wall portion 1100 and the wall portion serving as the outer diameter of the cylindrical portion 120.

  An attachment stay member 5 made of a metal material is fixed and held on the bottom surface side of the lower case 12, and the attachment stay member 5 is assembled and fixed to the vehicle body that is the main body of the construction machine.

  As described above, in the lighting device according to the first embodiment, the transmissive part 110 made of a translucent resin material and the non-transmissive part 111 made of a non-translucent resin material are formed by resin molding. A molded resin part (upper case 11) formed integrally, a support member (lower case 12) made of a non-translucent resin material provided behind the molded resin part (upper case 11), and a support A light source 3 supported by a member (lower case 12), and an illumination device that illuminates the transmissive portion 110 with the light source 3 disposed behind the molded resin component (upper case 11). A transparent cylindrical wall portion 1100 that protrudes toward the back side of the molded resin part (upper case 11) is provided integrally with the transmission portion 110 so as to cover the light source 3 (light emitting portion location). By the light cylindrical wall 1100 By covering, the light source 3 can be prevented from being directly contaminated with moisture, dust, and the like, and the cylindrical wall portion 1100 covering the light source 3 is a transmissive portion 110 which is a molded resin part (upper case 11). Therefore, the transmissive part 110 can be illuminated without the number of components increasing and without being blocked by the light emitted from the light source 3.

  Further, as shown in FIG. 3, the outer diameter dimension of the cylindrical wall portion 1100 provided in the upper case 11 is set larger than the outer diameter dimension of the cylindrical portion 120 provided in the lower case 12. By setting so that a gap G is provided between the wall portion which is the inner diameter of the cylindrical wall portion 1100 and the wall portion which is the outer diameter of the cylindrical portion 120, as a result, a molded resin part is obtained. The protruding end portion of the cylindrical wall portion 1100 integrally formed from the transmission portion 110 of the upper case 11 and the end portion side of the cylindrical portion 120 integrally formed from the lower case 12 that is a support member are partially provided. It is possible to prevent water droplets or the like from entering the light source 3 from the outside, thereby further improving waterproofness. Further, the heat generated from the light source 3 is provided so that the protruding end portion of the cylindrical wall portion 1100 and the end portion side of the cylindrical portion 120 are partially wrapped, so that the gap G to be wrapped is provided. Heat can be dissipated from the location to the outside.

  Further, by arranging the sheet plate 2 provided with the transmissive indicator portion 2a on the front side of the upper case 11 which is a molded resin part, the irradiation light from the light source 3 is transmitted through the transmissive cylindrical wall portion 1100. Through the transmission part 110, the indicator part 2a of the sheet plate 2 is transmitted and illuminated. At this time, it is possible to perform transmission illumination with an arbitrary hue by setting the hue of the index portion.

  Further, an opening hole 2b having a diameter larger than that of the opening hole portion 11a of the upper case 11 is provided in the sheet plate 2 at a peripheral portion of the opening hole portion 11a of the upper case 11 to which the key cylinder of the ignition switch S1 is inserted and fixed. Accordingly, the peripheral portion of the opening hole 11a of the upper case 11 is provided as a ring-shaped transmission portion 110a so that it can be discriminated from the front surface. Therefore, the ring-shaped transmission portion 110a is illuminated and displayed by the irradiation light from the light source 3. Thus, the position of the ignition switch S1 can be easily confirmed at night or the like.

  At this time, by providing the inclined reflecting surface 110b on the back side of the ring-shaped transmitting portion 110a, the position of the ignition switch S1 can be further easily determined by shining the reflecting surface 110b.

  The present invention is not limited to the above-described embodiment, and various modifications can be made within the scope of the present invention. For example, in the embodiment, the transmission portion 110 and the light-transmitting portion 110 are covered so as to cover the outer periphery of the light source 3. The permeable cylindrical wall portion 1100 that is provided integrally and protrudes toward the back side of the molded resin part is formed so as to be provided integrally with the transmissive portion 110 of the transparent upper case 11. The wall portion 1100 is colored and molded, for example, in blue, so that the indicator portion 2a and the ring-shaped transmitting portion 110a of the sheet plate 2 can be transmitted and illuminated in blue by the irradiation light from the light source 3, and the color to be colored It is also possible to change the hue of the illumination color by arbitrarily setting.

  Further, as described in detail in the above-described embodiment, the display lighting device such as a construction machine has been described as an example. However, the lighting device for a display panel for a ship or the lighting device for a special vehicle such as an agricultural machine is also used. It is possible to apply.

DESCRIPTION OF SYMBOLS 1 Case 2 Sheet | seat board 2a Indicator | index part 2b Opening hole 3 Light source 3a Socket 4 Electric cord 11 Upper case (molded resin component)
11a Opening hole 12 Lower case (supporting member)
DESCRIPTION OF SYMBOLS 110 Transmission part 110a Ring-shaped transmission part 110b Reflective surface 111 Non-transmission part 1100 Cylindrical wall part G Gap P Switch panel member S1, S2, S3 Switch

Claims (3)

  A molded resin component formed by integrally molding a transmissive portion made of a translucent resin material and an impermeable portion made of a non-translucent resin material by resin molding, and behind the molded resin component In an illuminating device that includes a support member made of a non-translucent resin material and a light source supported by the support member, and that illuminates the transmissive portion with the light source disposed behind the molded resin component. An illuminating device comprising a transparent cylindrical wall portion protruding integrally with the transmitting portion so as to cover the outer periphery of the light source.   The lighting device according to claim 1, wherein a cylindrical portion disposed so as to partially overlap a protruding end portion of the cylindrical wall portion is integrally formed from the support member. The lighting device according to claim 1, wherein a sheet plate provided with a permeable index portion is arranged on a front side of the molded resin part.

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