JP2006236846A - Illumination fixture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illumination fixture in which illumination effect can be secured in rainy days or the like by preventing light deterioration due to rainwater trapped on a translucent panel face. <P>SOLUTION: In the illumination fixture 1 in which an electric bulb 12 is provided in the lighting fixture main body 11 and a translucent panel 20 is held by a frame body 21 at the front face and mounted on the lighting fixture main body 11 via a water stop packing 28, the frame body 21 is composed of a contact part 23 contacting the peripheral part of the translucent panel 20, and an engaging part 26 removably engaged with the outer peripheral part of the lighting fixture main body 11, and mounted on the lighting fixture main body 11, a plurality of groove parts 31 extended in the diameter direction of the frame body 21 are installed in the circumferential direction of the frame body 21, and space parts S3 continuing to the groove parts 31 are formed between the outer peripheral part 13 of the lighting fixture main body 11 and the engaging part 26 of the frame body 21 up to the outer edge of the lighting fixture main body 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a luminaire, and more particularly to a luminaire that prevents a decrease in the amount of light due to rainwater or the like even when used outdoors.

Conventionally, luminaires used outdoors are the front of the lamp body with the lamp and reflector arranged inside, a transparent panel made of glass or the like and a waterproof member such as rubber packing sandwiched between the lamp body and the interior of the lamp Is generally a waterproof structure in which rainwater does not enter inside (for example, Patent Documents 1 and 2).
JP-A-8-315609 JP 2001-291421 A

  A conventional waterproof luminaire in which the interior of a lamp is hermetically sealed using the above-described translucent panel and packing has waterproofness inside the lamp, and can prevent rainwater from entering and improve durability. However, when it is used by irradiating light upward in rainy weather, rainwater accumulates on the translucent panel surface and a pattern of rainwater appears on the irradiated surface, or rainwater evaporates due to the heat of the lamp to generate water vapor and hinder light. There is a problem that the amount of light is reduced due to contamination of the transparent panel surface.

  The present invention has been made in view of the above problems, and provides a lighting apparatus that prevents a decrease in the amount of light due to rainwater that accumulates on the surface of a translucent panel and that can ensure a lighting effect even in rainy weather. It is the purpose.

  The lighting fixture of the present invention includes a light source in a lamp main body, a lighting fixture in which a light transmitting panel is held on a front surface by a frame body and attached to the lamp main body via a waterproof member, and the frame body includes the light transmitting panel. An abutting portion that abuts on the peripheral edge of the lamp body, and an engaging portion that detachably engages with the lamp body, and a radial surface of the frame body on the abutting surface of the abutting portion with the translucent panel A plurality of extending groove portions are provided in the circumferential direction of the frame body, and a space portion continuous to the groove portion is formed up to the outer edge of the lamp body between the outer peripheral portion of the lamp body and the engaging portion of the frame body. It is characterized by.

  The lighting fixture of the present invention can be a spotlight type lighting fixture in which the direction of light irradiation is free.

  According to the lighting fixture of the present invention, rainwater that pours onto the upper surface of the translucent panel flows to the lower surface side of the translucent panel according to the inclination of the panel surface, and the rainwater that flows to the bottom surface portion is a gap between the groove portion provided on the frame body and the panel surface Since it flows along the space of the engaging part and is discharged to the outside of the lamp body, rainwater does not accumulate on the top surface of the panel, and the rainwater pattern on the panel surface appears on the irradiation surface, or rainwater is generated by the heat of the lamp. As a result, water vapor is generated to prevent light from being blocked, or problems such as a decrease in the amount of light due to contamination of the light-transmitting panel surface are solved, and a sufficient lighting effect can be exhibited even in rainy weather.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  The lighting fixture of this embodiment is a spotlight type, and is mainly mounted on an outdoor mounting surface such as the ground or the outside of a building, and the light irradiation direction can be freely adjusted.

  1 is a side view showing a main part of the lighting apparatus in a sectional view, FIG. 2 is a front view of a lamp part, FIG. 3 is a front view of a frame, and FIG. 4 is a sectional view taken along the line A-O-B in FIG. FIG. 5 is an enlarged view of a portion C in FIG.

  The luminaire 1 includes a lamp 2 having a light bulb type fluorescent lamp 12 and a reflector 16 in a cylindrical lamp body 11 having an opening 10 on the front surface, and an outer side of the lamp body 11 in the opening 10. A frame body 21 provided with a translucent panel 20 that covers the opening 10 and transmits light, an arm 4 that supports the lamp 2, and an attachment for fixing the luminaire 1 to the attachment surface M. It is comprised from the stand 5.

  The light bulb 12 is attached to a socket 14 connected to a socket fixture 15 provided at the rear of the lamp body 11, and a power supply line for power supply to the lighting fixture 1 and a ground wire 41 are connected to the socket 14. Electric power is supplied through the internal wiring of the arm 4 and the mount 5. In addition, it is preferable to use the product made from aluminum in order to improve the heat dissipation effect from the socket 14, and the thing with a thick earth wire has a good heat dissipation effect, and preferable.

  In addition, a reflector 16 that distributes the light emitted from the light bulb 12 to the outside via the translucent panel 20 is detachably attached to the lamp body 11 along the inner periphery of the lamp body 11 by a ring-shaped spring 17 for locking. The reflector 16 can be easily attached and detached.

  In addition to the light bulb type fluorescent lamp shown in the figure, various types of lamps such as incandescent bulbs, fluorescent lamps and halogen lamps can be used, and the lamp body and reflector should be selected and used according to the type of light source and lighting application. However, the lighting fixture is not limited to the appearance and shape shown in the drawing.

  A concave groove 18 for receiving a water stop packing 28 made of silicon rubber or the like as a waterproof member is provided on the entire periphery of the distal end surface of the opening 10 of the lamp body 11.

  Further, the lamp body 11 and the frame body are screwed into an engagement screw groove 25 provided in the engagement protrusion 26 on the inner peripheral surface of the frame body 21 on the inner side of the opening 10 side end portion of the lamp body 11. The screw groove 19 for integrating with 21 is provided on the entire outer periphery thereof.

  The translucent panel 20 is a disk-shaped body made of glass, the peripheral portion of the translucent panel 20 abuts on the abutting portion 23 inside the frame body 21, and the ring-shaped spring 22 for locking the inside of the frame body. It is installed. The floodlight panel 20 is usually made of tempered glass, but may be made of plastic or the like.

  As shown in the drawing, the frame body 21 is formed of a substantially annular body that covers the opening 10 of the lamp body 11 from the outside, and light is closed while the opening 10 is closed by the translucent panel 20 mounted inside. The abutting portion 23 with which the peripheral edge of the translucent panel 20 abuts is provided to stand inward from the inner peripheral surface 24 of the frame body 21, and the inner peripheral surface on the lamp body 11 side A thread groove 25 that is screwed into the thread groove 19 provided in the lamp body 11 is provided on the entire periphery of the lamp body 24 to form an engaging portion 26 with the lamp body 11. The screw grooves 19 and 25 are provided with a plurality of notches (not shown) in the circumferential direction that cross the screw grooves for allowing rainwater or the like to be described later to pass therethrough.

  The inner peripheral diameter D <b> 1 of the inner peripheral surface 24 of the frame body 21 is set larger than the outer peripheral diameter D of the translucent panel 20 in order to facilitate replacement of the translucent panel 20. Thereby, a gap S <b> 2 is formed between the inner periphery of the frame body 21 in the contact portion 23, that is, between the inner peripheral surface 24 and the outer peripheral portion of the translucent panel 20.

  Further, the inner peripheral diameter D1 and the lamp are set so that a space S3 leading to the gap S2 is formed up to the outer edge of the lamp body 11 between the outer periphery of the lamp body 11 and the engaging portion 26 of the frame body 21. The outer peripheral shape of the end of the main body 11 is set.

  Here, as shown in FIGS. 3 and 4, the frame body 21 is located on the inner peripheral side of the frame body 21 on the inner side of the contact portion 23, that is, on the circumference of the contact surface 23 a with the peripheral edge portion of the translucent panel 20. A plurality of groove portions 31 extending from the end portion to the inner peripheral surface 24 in the radial direction are provided in the circumferential direction of the frame body 21 (six locations at intervals of 60 ° in the circumferential direction in the figure). A gap S1 is formed at a predetermined interval between the transparent panel 20 and the translucent panel 20, and the gap S1 is continuous with the gap S2.

  As long as rainwater or the like flows into the gap S1 opened on the surface of the translucent panel 20, the groove 31 has no particular limitations on the cross-sectional shape, dimensions, and numerical aperture of the groove, and the shape of the lamp or the panel surface. , Can be appropriately selected according to the size. For example, in this embodiment, the groove width is 2 to 10 mm and the depth is about 0.5 to 1 mm.

  The lighting fixture 1 of the present embodiment includes an arm 4 provided on the lamp 2 and a mounting base 5 provided at an end of the arm 4, and the mounting base 5 is fixed to the mounting surface M with bolts 51. It is attached. Further, the arm 4 has a rotating part 43 that allows the lamp 2 to rotate in the horizontal direction on the mounting base 5 and an adjustment screw part 42 that rotates the lamp 2 in the vertical direction. Is an irradiation direction adjustable type that can be adjusted vertically and horizontally.

  The lamp body 11 and the frame body 21 configured as described above cover the frame body 21 provided with the translucent panel 20 in the opening 10 of the lamp body 11, and screw and tighten the screw grooves 19 and 25 of both. Thus, the translucent panel 20 is fixed to the lamp body 11 through the water-stop packing 28, and further tightened to improve the adhesion and to seal the lamp 2 to have a waterproof structure. It will prevent intrusion into the inside.

  And as shown in FIG. 5, the lighting fixture 1 of this invention has the groove part 31 provided in the contact part 23 of the frame 21 on the surface of the translucent panel 20 between the peripheral parts of the translucent panel 20. As shown in FIG. An open gap S1 is formed, the gap S1 communicates with the gap S2 between the outer periphery of the translucent panel 20 and a space between the outer periphery of the lamp body 11 and the engaging portion 26 of the frame body 21. Continuing to S3, that is, the gaps S1 and S2 and the space S3 continuously form a rainwater flow path, and follow the outer edge of the lamp body 11.

  Accordingly, in the lighting fixture 1, rainwater that pours onto the translucent panel 20 that is installed to be inclined upward flows to the lower surface side of the translucent panel 20 due to the inclination of the surface of the panel 20. Flows from the groove 31 opened on the periphery of the lamp, flows along the space S3 of the engagement portion 26 from the gap S1 of the contact portion, passes through the clearance S2 of the outer periphery, and passes through the notch portion of the screw groove to the outside of the lamp body 11 The rainwater does not accumulate on the panel 20 surface. In order to effectively exclude rainwater on the panel surface in this way, it is preferable to provide the panel surface with an inclination of at least 2 ° or more.

  As described above, the lighting fixture of the present invention can ensure waterproofness and can exhibit a lighting effect without accumulation of rainwater on the translucent panel surface, so that it can be used outdoors such as on the ground or outside the building. It can be widely used as a lighting device, and as a surrounding lighting device using water such as a pool or a fountain.

It is the side view which showed the principal part of the lighting fixture with sectional drawing. It is a front view of a lamp part. It is a front view of a frame. FIG. 4 is a cross-sectional view taken along line AOB in FIG. 3. It is an enlarged view of the C section of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Lighting fixture 11 ... Lamp main body 12 ...... Light bulb 13 ... Outer peripheral part of lamp main body 20 ... Translucent panel 21 ... Frame body 23 ... Contact part 23a ... Contact surface with a translucent panel 26 …… engagement portion 28 …… waterproof packing 31 …… groove S1, S2 …… gap S3 …… space

Claims (2)

In the luminaire provided with a light source in the lamp body, a translucent panel held on the front by a frame and attached to the lamp body through a waterproof member,
The frame body includes an abutting portion that abuts on a peripheral portion of the translucent panel, and an engaging portion that is detachably engaged with the lamp body.
A plurality of grooves extending in the radial direction of the frame body are provided on the contact surface of the contact portion with the translucent panel in the circumferential direction of the frame body, and the outer peripheral portion of the lamp body and the engagement portion of the frame body A space part continuous to the groove part is formed up to the outer edge of the lamp body. The lighting fixture according to claim 1, wherein the lighting fixture is a spotlight type lighting fixture that can freely irradiate light.

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