JP4893494B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting apparatus having a function of draining water accumulated inside.

  2. Description of the Related Art Conventionally, lighting fixtures having a water draining mechanism are known in order to enable use outdoors. For example, as shown in FIGS. 7 and 8, a lighting apparatus 100 disclosed in Patent Document 1 includes a drainage and peep hole 102 formed in a lower surface portion 101 </ b> A of an apparatus main body 101 of an apparatus main body 101, and an apparatus main body. 101 is provided with a charging monitor lamp 103 and the like disposed inside the water draining and peeping hole 102. The water draining / penetrating hole 102 is formed at the tip of the funnel-shaped cylindrical portion 104. The cylindrical portion 104 is formed integrally with the lower surface portion 101A of the instrument main body 101. In addition, the code | symbol 105 in FIG.7 and FIG.8 shows a mounting base.

  Therefore, according to this lighting fixture, the water that has entered the fixture main body 101 and accumulated inside the lower surface portion 101A is drawn out to the funnel-shaped portion of the drainage and peep hole 102, and is drained without accumulating due to surface tension. The

  Moreover, the lighting fixture 200 for outdoor installation shown in FIG. 9 is also known. This luminaire 200 has a human sensor 202 in an opening 201A formed in the center of the lower surface of the globe 201, and a packing 203 is provided around the human sensor 202. Further, a drain hole 203A is formed in the packing 203.

Japanese Utility Model Publication No. 62-71818

  However, in the luminaire described above, since the drain hole is opened, a small insect or the like invades the inside of the appliance through the opening in search of light. Lighting fixtures in which dead bodies of insects that have penetrated the inside of the fixture are stored in the glove can give viewers an uncomfortable feeling. In the latter luminaire, since the drain hole 203A is provided in the packing 203, the size of the packing 203 must be such that the drain hole 203A can be provided.

  An object of the present invention is to provide a lighting fixture that prevents the entry of small insects and the like and also has a function of draining water accumulated inside.

In the present invention, an upper member on which a lamp and a component are mounted, and a hole for fitting a part of the component to the outside in a state of being fitted to the upper member and being fitted to the upper member are formed on the lower surface portion. A lower member formed, and a packing interposed between the component and the lower member when the lower member is fitted to the upper member, and closing a gap between the component and the lower member, packing, a mounting portion attached to the inner peripheral portion of the hole of the lower member, the tip is closed and a pleated contact portion in contact with the part, of the water when the contact portion of water accumulates in Provided is a lighting fixture that is a material having flexibility or flexibility so that the contact portion bends and opens downward under its own weight, and a gap is formed between the contact portion and the component .

  In the lighting apparatus, a groove is formed on the surface of the packing facing the internal space covered by the lower member in a state where the packing is attached to the lower member, from an end of the attachment portion to the contact portion. .

  In the lighting apparatus, the contact portion has a tapered shape from the attachment portion side to the distal end side.

  In the lighting apparatus, the inner bottom surface of the lower member is inclined downward toward the hole.

  According to the lighting device of the present invention, when water accumulates in the contact portion of the packing, the contact portion bends and opens due to its own weight, and is drained to the outside through a gap formed between the parts. For this reason, since no gap is formed except during drainage, small insects or the like can be prevented from entering the interior of the lighting fixture.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a lighting apparatus according to an embodiment. FIG. 2 is an exploded perspective view showing the lighting apparatus of one embodiment. As shown in FIGS. 1 and 2, the lighting fixture 1 includes a fixture body 2, a globe 3, and a packing 4.

  The fixture body 2 has a cylindrical shape with an open lower end and constitutes an upper member of the lighting fixture 1. A lamp 21, sensor 22, reflector 23, control block 24, ballast 25, and the like are mounted on the upper end surface (ceiling surface side) inside the instrument body 2. Instead of the sensor 22, a component such as an accessory having the same shape may be used.

  The globe 3 constitutes a lower member of the lighting fixture 1 and is fitted to the fixture body 2. The globe 3 transmits light from the lamp 21. As a material of the globe 3, for example, an acrylic resin having a flexural modulus of 2000 to 3000 MPa is used.

  The globe 3 is formed with a hole 31 </ b> A in the center of the lower surface 31 for exposing a part of the sensor 22 to the outside. Further, in consideration of drainage, the globe 3 has an inner bottom surface 31B of the lower surface portion 31 on the lower side toward the center where the hole portion 31A is located (that is, the direction in which gravity acts), as shown in FIG. It is gradually inclined.

  The packing 4 is interposed between the sensor 22 and the globe 3 in a state where the globe 3 is fitted to the instrument main body 2, and closes the gap between the sensor 22 and the globe 3. Since the sensor 22 of this embodiment is circular, the packing 4 is formed in a ring shape with an open center. Furthermore, the packing 4 is formed of a flexible or soft material, for example, silicon having a bending elastic modulus of 5 to 10 MPa. The packing 4 is not limited to a circular ring shape, but may be a polygonal ring shape.

  As shown in FIG. 4, the packing 4 includes an outer ring portion 41 that sandwiches the inner peripheral portion of the hole portion 31 </ b> A of the globe 3, and a pleated inner ring that extends from the outer ring portion 41 toward the center and has a tip that contacts the sensor 22. Part 42. The cross-sectional shape of the inner ring portion 42 is tapered from the outer ring portion 41 side to the distal end side (that is, the center side of the hole portion 31A).

  FIG. 5 is a perspective view showing a modified example of the packing 4. As shown in FIG. 5, a groove 43 is formed in the packing 4 from the end of the outer ring portion 41 to the inner ring portion 42 on the surface (upper surface) of the packing facing the inner space covered with the globe 3 when attached to the globe 3. It may be provided. The water accumulated in the globe 3 is efficiently guided to the inner ring portion 42 by the groove 43 provided in the packing 4. In the packing provided with the grooves 43, the number of the grooves 43 is not limited to four.

  Hereinafter, the drainage function of the lighting fixture 1 of the present embodiment will be described in detail with reference to FIGS. 4 and 6. When moisture adheres to the inner bottom surface 31B of the lower surface portion 31 facing the inner space covered with the globe 3, the moisture travels along the inclined lower surface portion 31 to the outer ring portion 41 of the packing 4 as shown in FIG. The inner ring portion 42 is reached from the outer ring portion 41 along the groove 43. The moisture W that has reached the inner ring portion 42 accumulates on the upper surface of the inner ring portion 42 (the surface facing the inner space). As shown in FIG. 6, when a predetermined amount of water W accumulates, the collar of the inner ring portion 42 is bent downward by the weight of the water W, and a gap is formed between the sensor 22 and the sensor 22. The water W collected on the upper surface of the inner ring portion 42 is discharged outside through a gap formed between the sensor 22 and the water W.

  As described above, according to the lighting device 1 of the present embodiment, when a certain amount of water in the globe 3 accumulates on the upper surface of the inner ring portion 42 of the packing 4, the ridges of the inner ring portion 42 open, and the water goes to the outside. Discharged. Thus, although the lighting fixture 1 of this embodiment has a drainage function, unless a certain weight of water accumulates on the upper surface of the inner ring portion 42 of the packing 4, that is, except during drainage, the drainage is performed between the sensor 22 and the sensor 22. No gap is formed. Accordingly, small insects cannot enter the globe 3 from the outside. Moreover, since the water collected on the upper surface of the inner ring portion 42 of the packing 4 is discharged to the outside when the weight becomes constant, it is possible to prevent the parts from being flooded. Furthermore, since the packing 4 can be made thin, it is possible to provide a lighting fixture with excellent design.

  The luminaire according to the present invention is useful as an outdoor luminaire that prevents the entry of small insects and the like and also has a function of draining water accumulated inside.

The perspective view which shows the lighting fixture of one Embodiment 1 is an exploded perspective view showing a lighting apparatus according to an embodiment. Sectional drawing which shows the glove, sensor, and packing of the state with which the instrument main body was mounted | worn Enlarged sectional view showing the glove, sensor, and packing in a state of being mounted on the instrument body The perspective view which shows the modification of packing The figure which shows a mode that it drains from the clearance gap formed by the dead weight of water Sectional drawing which shows the lighting fixture disclosed by patent document 1 The exploded perspective view which shows the lighting fixture disclosed by patent document 1 The perspective view which shows the other conventional lighting fixture

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lighting fixture 2 Appliance main body 21 Lamp 22 Sensor 3 Globe 31 Lower surface part 31A Hole part 31B Inner bottom surface 4 Packing 41 Outer ring part 42 Inner ring part 43 Groove

Claims (4)

An upper member equipped with lamps and parts;
A lower member in which a hole is formed in the lower surface portion so that a part of the component is exposed to the outside in a state of being fitted to the upper member and being fitted to the upper member;
A packing interposed between the component and the lower member when the lower member is fitted to the upper member, and closing a gap between the component and the lower member,
The packing, possess the said hole inner peripheral portion mounting portion attached to the lower member, and folds like contact portion whose tip contacts the component, and
When water accumulates in the contact portion, the contact portion bends and opens downward due to its own weight, so that a gap is formed between the contact portion and the component. luminaire, characterized in that. The lighting fixture according to claim 1,
Illumination characterized in that a groove is formed on the surface of the packing facing the internal space covered by the lower member in a state where the packing is attached to the lower member from the end of the attachment portion to the contact portion. Instruments. The lighting fixture according to claim 1,
The said contact part is a shape which tapered from the said attachment part side to the said front end side, The lighting fixture characterized by the above-mentioned. The lighting fixture according to claim 1,
An inner surface of the lower member is inclined downward toward the hole.

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