JPH0896619A - Luminaire - Google Patents

Abstract

PURPOSE: To excellently restrain a fault current or the like caused by generation of moisture condensation water by improving a ventilating action on the inside and the outside, and restraining liquid such as rainwater from flowing in from outside while attaining simplification of installing work of a cylindrical cover on an installing member and an improvement in external appearance. CONSTITUTION: A downward opening first annular groove 10 to be fitted from vertical direction to an upper end part and an installing member 4 having a lamp socket 6 are installed in this upper end part of a columned cylinder body 1. An upward opening second annular groove 11 in which a lower end part of a light transmissive cylindrical cover 5 is fitted to cover the outer periphery of a lamp 12, is formed in this installing member 4, and a liquid discharge passage to discharge and guide liquid flowing in the second annular groove 11 to the first annular groove 10 is formed in the installing member 4 in a condition of opening outside of an outer peripheral surface of the columned cylinder body 1 fitted in and fixed to the first annular groove 10. At the same time, a ventilating passage communicated over an inside space and the outside of the columned cylinder body 1 is formed between an inside surface facing the first annular groove 10 of the installing member 4 and the columned cylinder body 1 fitted in and fixed to the first annular groove 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pole-shaped lighting fixture which is erected on the outdoor ground such as an amusement park, a promenade, or a courtyard. And a mounting member having a downwardly-opened first annular groove and a lamp socket fitted from above and below is attached to the mounting member, and a translucent tube covering the outer periphery of the lamp mounted in the lamp socket. The present invention relates to a lighting fixture in which a second annular groove having an upward opening into which a lower end of a circular cover is fitted is formed.

[0002]

2. Description of the Related Art In this type of luminaire, part of rainwater (an example of a liquid) that flows down along the outer peripheral surface of the cylindrical cover and faces the second annular groove because it is erected outdoors. Since the lower end of the tubular cover and the second annular groove of the mounting member are sealed with a sealing material so as not to flow into the mounting member through between the lower end of the cylindrical cover and the lower end of the cylindrical cover,
Condensation water is likely to be generated on the inner surface of the cylindrical cover due to the temperature difference between the interior space of the lighting fixture and the outside air, and as a result, if the condensation water gets on the electric parts such as the lamp holder and the ballast, it will cause a short circuit or short circuit. May cause. In particular, when the inner space of the columnar cylinder is erected in a state where the ground surface is exposed, moisture (humidity) that evaporates from the ground flows into the columnar cylinder, so that dew condensation water is more likely to form on the inner surface of the cylindrical cover. It tends to occur. Therefore, conventionally, a vent hole extending through the inner space and the outside of the columnar cylinder is formed through the columnar cylinder, or the second annular groove of the attachment member is formed as a water receiving groove for dew condensation water. , On a part of the inner peripheral wall of the water receiving groove,
It is proposed to form a drainage notch for draining the condensed water collected in the water receiving groove at a position where it does not fall on the electric parts (for example, Japanese Utility Model Laid-Open No. 63-410). .

[0003]

However, in both of the conventional cases, when the cylindrical cover is assembled to the mounting member, the second annular groove of the mounting member and the lower end portion of the cylindrical cover are removed. Since the sealing material must be interposed between the two, the assembling work is likely to be complicated. Moreover, in the former case, since the ventilation holes are exposed to the outer peripheral surface of the columnar cylindrical body, not only the appearance of the lighting fixture is deteriorated, but also
Since rainwater easily enters the columnar cylinder through the ventilation holes, there is a problem that it promotes the generation of dew condensation water. On the other hand, in the latter case, the condensation water received in the second annular groove of the attachment member cannot be condensed. Since it is discharged downward in the internal space of the cover, the humidity condition inside the lighting fixture does not change, and as a result, dew condensation may occur on the electric component itself. In particular, if no sealant is interposed between the inner surface facing the second annular groove and the lower end of the tubular cover, some rainwater that flows down to the outer peripheral surface of the tubular cover will also be removed. Since it flows into the second annular groove through the space between the inner surface facing the two annular grooves and the lower end of the tubular cover, there is a problem that the humidity in the columnar cylinder becomes higher and the generation of dew condensation water is further promoted.

The present invention has been made in view of the above situation, and an object thereof is to provide a first annular groove for fitting and connecting a columnar cylindrical body and a cylindrical cover between them. Second
Paying attention to the fact that there is a mounting member that has an annular groove on the top and bottom, and by reasonably modifying the mounting member, while simplifying the work of assembling the tubular cover to the mounting member and improving the appearance, The point is to provide a lighting fixture capable of suppressing the generation of dew condensation water.

[0005]

The characteristic constitution of the present invention for attaining the above object is to provide a first annular ring having a downward opening, which is fitted in the upper end portion of the columnar cylindrical member from above and below. A mounting member having a groove and a lamp socket is mounted, and the mounting member has a second upward opening into which the lower end of a light-transmissive tubular cover that covers the outer circumference of the lamp mounted in the lamp socket is fitted. A lighting fixture having an annular groove, wherein the mounting member includes a drainage passage for guiding the liquid flowing into the second annular groove into the first annular groove. Is formed so as to be opened outside the outer peripheral surface of the columnar cylindrical body fitted and fixed to the first cylindrical groove and the inner surface of the mounting member facing the first annular groove. Between the columnar cylindrical body that has been Lies in the vent passage communicating across the internal space and the outside of the cylindrical body is formed.

Of the ceiling surface facing the first annular groove of the mounting member, at least the ceiling surface portion located at the peripheral edge of the opening of the drainage passage is formed as an inclined surface located toward the drainage passage side. May be.

The upper end surface of the columnar cylindrical body may be formed as an inclined surface that is located lower toward the outer side of the columnar cylindrical body.

Between the inner surface of the mounting member facing the second annular groove and the tubular cover fitted and fixed in the second annular groove, the dew condensation water generated on the inner surface of the tubular cover is drained. A dew condensation water discharge passage may be formed to guide the discharge to the passage.

Of the bottom surface of the mounting member facing the second annular groove, at least the bottom surface portion located at the peripheral edge of the opening of the drainage passage is formed as an inclined surface located downward toward the drainage passage side. Good.

The drainage passage and the ventilation passage may be formed at positions spaced from each other in the circumferential direction of the mounting member.

[0011]

According to the structure of claim 1, the lower end of the tubular cover is fitted in the second annular groove of the mounting member without interposing a sealing material, and the tubular cover is mounted on the mounting member. However, the liquid flowing into the second annular groove through the inner peripheral surface on the outer peripheral side facing the second annular groove and the outer peripheral surface of the lower end portion of the tubular cover is formed in the second annular groove. Since the liquid is discharged through the drainage passage in the first annular groove and further outward than the outer peripheral surface of the columnar cylindrical body fitted in the first annular groove, the inflowing liquid is stored in the mounting member and in the mounting member. It does not flow into the columnar cylinder. Moreover, due to the ventilation action through the ventilation passage that connects the internal space of the columnar cylindrical body with the outside,
The temperature difference between the inside and the outside can be reduced, and the ventilation passage is formed between the inner surface of the first circumferential groove of the mounting member and the columnar cylindrical body fitted and fixed in the first annular groove. Therefore, the ventilation passage is not exposed to the outside.

According to the second aspect of the invention, due to the existence of the inclined surface of the ceiling surface portion located at the opening peripheral edge of the drainage passage, the liquid guided to be discharged into the first annular groove through the drainage passage. However, it is possible to suppress the inflow to the inner peripheral surface side of the columnar cylindrical body while being transmitted along the ceiling surface of the first annular groove.

According to the third aspect of the invention, the liquid guided to be discharged into the first annular groove through the drainage passage is scattered at the discharge port of the drainage passage and adheres to the upper end surface of the columnar cylinder. However, since the adhered liquid is guided downward to the outer peripheral surface side along the inclination direction of the upper end surface of the columnar cylindrical body, a part of the liquid discharged and guided through the drainage passage is inside the cylindrical cylindrical body. Inflow to the peripheral surface side can be suppressed.

According to the structure of claim 4, even if dew condensation water is generated on the inner surface of the cylindrical cover, the dew condensation water can be flow-guided to the drainage passage side.

According to the fifth aspect, the liquid flowing into the second annular groove can be smoothly guided to the drainage passage.

According to the structure of claim 6, the liquid discharged from the drainage passage does not flow into the columnar cylinder through the ventilation passage.

[0017]

The luminaire according to claim 1 simplifies the work of assembling the tubular cover with respect to the mounting member and improves the appearance, while improving the ventilation effect inside and outside and preventing rainwater and the like from the outside. Since it is possible to suppress the inflow of the liquid, it is possible to favorably suppress the electric leakage and the like caused by the generation of the condensed water.

According to another aspect of the luminaire of the present invention, an increase in internal humidity due to a part of the liquid discharged from the drainage passage flowing along the inner surface of the first annular groove and flowing into the columnar cylinder is suppressed. be able to.

In the lighting device according to the third aspect, a part of the liquid discharged from the drainage passage is suppressed from increasing in internal humidity caused by flowing into the columnar cylinder along the upper end surface of the columnar cylinder. can do.

In the lighting device according to the fourth aspect, even if dew condensation water is generated on the inner surface of the cylindrical cover, the dew condensation water can be discharged to the outside of the mounting member. The dew condensation water discharge structure can be easily configured by utilizing the second annular groove and the drainage passage.

In the luminaire according to the fifth aspect, the liquid that has flowed into the second annular groove is unlikely to stay in the second annular groove. Therefore, the performance of discharging the inflowing liquid to the outside of the mounting member is further enhanced. be able to.

In the lighting equipment according to the sixth aspect, it is possible to prevent an increase in internal humidity due to a part of the liquid discharged from the discharge passage flowing into the columnar cylinder through the ventilation passage.

[0023]

【Example】

[First Embodiment] FIG. 6 shows a lighting apparatus of the present invention, which is a round pipe-shaped aluminum columnar cylinder 1 standing on the ground G of a park or an amusement park, and an upper part of the columnar cylinder 1. And a lamp 2 provided on the. As shown in FIG. 1, the lamp 2 includes a head cover 3 made of aluminum die cast, a translucent tubular cover 5 made of a cylindrical synthetic resin, and a mounting member 4 made of aluminum die cast, which are vertically arranged. It is arranged and configured. The lamp socket 6 is attached to the first bracket 4a fixed to the upper surface of the bottom portion 4A of the mounting member 4, and the second bracket 4b is hung from the lower surface of the bottom portion 4A of the mounting member 4. A glow socket 7 and a ballast 8 are attached to the bottom of the glow lamp 7, and the tip of the glow lamp 9 attached to the glow socket 7 is passed through an opening 4c formed in the bottom 4A of the attachment member 4 to the bottom 4A. Is configured to project to the upper surface side. In addition, as shown in FIGS. 1 to 5, on the lower surface side of the outer peripheral edge portion of the mounting member 4, there is provided a downward opening of a first opening which is detachably fitted to the upper end portion 1a of the columnar cylindrical body 1 from above. The first annular groove 10 is formed, and the cylindrical cover 5 is provided on the upper surface side of the outer peripheral edge portion of the mounting member 4 while being positioned above the first annular groove 10.
A second annular groove 11 having an upward opening for detachably fitting and holding the lower end portion 5a of the is formed. The cylindrical cover 5
Is a globe that covers the outer circumference of a fluorescent lamp 12, which is an example of a lamp mounted in the lamp socket 6. Further, as shown in FIG. 1, a female screw portion 3a is formed in the center portion on the inner surface side of the head cover 3, and a substantially inverted U-shaped hanger 13 is attached to a nut on the bottom portion 4A of the mounting member 4. It is fixed by tightening. Then, by rotating the head cover 3 while the male screw portion 14a of the screw 14 fixed to the upper part of the hanger 13 and the female screw portion 3a of the head cover 3 are aligned with each other, the female screw portion 3a and the male screw portion 3a are rotated. It is configured to be screwed with the screw portion 14a so that a portion 3b near the outer peripheral edge of the inner surface side lower surface of the head cover 3 moves to the upper end surface 5b side of the cylindrical cover 5 and is fixed by pressing.

Next, the fitting structure of the tubular cover 5 and the mounting member 4 will be described. As shown in FIGS. 2 and 4A, the inner circumference of the lower end portion 5a of the tubular cover 5 is described. The surface is
The tubular cover 5 is held on the mounting member 4 by being externally fitted to the inner peripheral surface 11a facing the second annular groove 11, and the outer peripheral surface 11b facing the second annular groove 11 and the lower end of the tubular cover 5 are held. A gap S1 is formed over the entire circumference between the outer peripheral surface of 5a.

The fitting structure of the columnar cylinder 1 and the mounting member 4 will be described. As shown in FIGS. 3 and 4B, the inner peripheral surface 10a facing the first annular groove 10 has The ridges 15 each having a length that extends over the entire width in the vertical direction of the inner peripheral surface 10a are integrally bulged and formed at four locations in the circumferential direction, and these ridges 15 are circumferentially close to each other. Book ridge 1
Two sets of ridges 15 are arranged at positions of 180 degrees out of phase with each other as a set. The inner peripheral surface of the upper end portion 1a of the columnar cylindrical body 1 is fitted and held by the mounting member 4 while being positioned on a virtual circle L connecting the vertices of the four protrusions 15, and 1 Inner peripheral surface 10 facing the annular groove 10
Between the a and the inner peripheral surface of the upper end portion 1a of the columnar cylindrical body 1, a gap S2 is formed over substantially the entire circumference due to the presence of the protrusion 15, and the outer peripheral surface of the first annular groove 10 is further formed. A gap S is formed over the entire circumference between 10b and the outer peripheral surface of the upper end 1a of the columnar cylinder 1.
3 is formed.

As shown in FIGS. 2, 4A and 5, the second annular groove 11 of the mounting member 4 is provided at two locations having a phase difference of about 180 degrees in the circumferential direction. From the portion of the bottom surface 11c that faces the groove 11 to the outside of the outer peripheral surface of the lower end portion 5a of the tubular cover 5, the first annular groove 10 is formed.
Through hole 16 penetrating in the up-down direction over a portion of the ceiling surface 10c facing the outer side of the outer peripheral surface of the columnar cylindrical body 1.
Are formed. Then, in rainy weather, rainwater (an example of liquid) flowing down along the outer peripheral surface of the cylindrical cover 5
4 flows into the second annular groove 11 through the gap S1 as shown by the arrow a in FIG. 4A. The inflowing rainwater passes through the through hole 16 and the first annular groove 10 flows. Inner space S
The through hole 16 is configured to be a drainage passage for rainwater to the outside of the lighting fixture.

As shown in FIGS. 3 and 4 (b) and FIG. 5, there are two positions having a phase difference of about 90 degrees from the drain passage 16 forming position on the ceiling surface 10c facing the first annular groove 10. A pair of recesses 17 recessed upward are formed so as to face each other in the radial direction of the mounting member 4, and the gap S2 and the gap S3 communicate with each other via the recess 17. With the recess 17 and the gaps S2 and S3, the columnar cylinder 1
A ventilation passage 18 is formed so as to communicate with the inner space of the and the outside. Since the ventilation passage 18 is formed between the inner peripheral surface of the first annular groove 10 and the upper end portion 1a of the columnar cylinder 1, the appearance of the columnar cylinder 1 and the mounting member 4, that is, the lighting fixture The exterior is not exposed, and the ventilation passage 18
Since the gas inside the columnar cylindrical body 1 and the outside air are convected by the ventilation effect through, the temperature difference between the inside and outside gases becomes small, so that the moisture contained in the gas on the inner peripheral surface of the cylindrical cover 5 is removed. Condensation becomes difficult. Further, since the discharge port of the drainage passage 16 and the recess 17 are out of phase with each other by about 90 degrees in the circumferential direction of the mounting member 4, the drainage passage 16 and the ventilation passage 18 are in the circumferential direction of the mounting member 4 with respect to each other. Since they are formed at positions spaced apart from each other, the discharge port of the drainage passage 16 and the opening of the ventilation passage 18 can be configured so that they do not coincide in the circumferential direction of the mounting member 4.

It should be noted that it is provided over the outer peripheral surface of the upper end portion 1a of the columnar cylindrical body 1 and the recess 20 of the peripheral wall 19 on the inner peripheral side of the first annular groove 10 of the mounting member 4 shown in FIG. The screw 21 is configured as a retaining tool that restricts the attachment member 4 from coming out of the columnar cylinder 1.

[Second Embodiment] In the first embodiment described above, the entire surface of the ceiling surface 10c facing the first circumferential groove 10 of the mounting member 4 and the entire surface of the bottom surface 11c facing the second circumferential groove 11 are substantially horizontal surfaces. However, the present invention is not limited to this structure, and as shown in FIG. 7, of the ceiling surface 10c facing the first annular groove 10, at least the rainwater receiving side of the drainage passage 16 is provided. Ceiling surface portion 10d located at the periphery of the opening,
Of the bottom surface 11c in the second annular groove 11, at least the bottom surface portion 11d located at the rainwater discharge side opening peripheral edge of the drainage passage 16 is formed on the inclined surface located downward toward the drainage passage 16 side. You may implement | achieve by forming in the inclined surface located in a downward direction so that the liquid passage 16 side may be implemented. Further, concave grooves 22 are formed at a plurality of locations on the inner surface 11a facing the second annular groove 11, and the inner circumference of the lower end portion 5a of the tubular cover 5 fitted and fixed to the concave grooves 22 and the second annular groove 11 is formed. If the dew condensation water drainage passage 23 that guides the dew condensation water generated on the inner surface of the tubular cover 5 to the drainage passage 16 side is configured and implemented, the dew condensation water will be temporarily stored in the tubular cover 5. Even if the condensed water is generated on the inner surface, it is possible to prevent the condensed water from flowing to the electric equipment side such as the lamp holder 6, the glow socket 7 and the ballast 8 while traveling along the inner surface of the mounting member 4. Other configurations are the same as in the first embodiment.

[Third Embodiment] In the first embodiment, as shown in FIG. 8, the upper end surface 1b of the upper end portion 1a of the columnar cylindrical body 1 is moved downward toward the outer side of the columnar cylindrical body 1. It may be implemented by forming it on an inclined surface located at. [Fourth Embodiment] In the above-described first embodiment, four protrusions 15 are provided.
As a result, a gap S2 is formed over substantially the entire circumference between the inner peripheral surface 10a of the first annular groove 10 on the inner peripheral side and the inner peripheral surface of the upper end portion 1a of the columnar cylindrical body 1 to form a part of the ventilation passage 18. However, the structure is not limited to this structure, and FIGS.
As shown in (1) and (2), in the peripheral wall 19 on the inner peripheral side of the first annular groove 10, two locations having a 90-degree phase difference from the formation position of the drainage passage 16 are flatly formed inward in the diametrical direction. To form the concave portion 24, and the concave portion 24 and the upper end portion 1 a of the columnar cylindrical body 1.
The ventilation passage 1 with a gap S4 formed between the inner peripheral surface of the
8 may be partially configured and implemented. Other configurations are the same as in the first embodiment.

[Fifth Embodiment] The lamp 2 of the first embodiment described above.
Then, the head cover 3 is attached to the upper portion of the cylindrical cover 5 fitted and held by the attaching member 4, but as shown in FIG. 11, the head cover 3 is formed separately and has an inverted U-shape. Alternatively, the cap-shaped tubular cover 5 may be fitted and held by the mounting member 4.

[Other Embodiments] The ceiling surface 1 facing the first annular groove 10 of the mounting member 4
0c is formed to be an inclined surface located below the drainage passage 16 side, and the entire bottom surface 11c facing the second annular groove 11 of the mounting member 4 is located below the drainage passage 16 side. You may implement it, forming on an inclined surface. The lamp 12 is not limited to a fluorescent lamp, and an incandescent lamp, a krypton lamp, or the like can be appropriately changed. The tubular cover 5 may be made of glass and may be transparent. In this case, by providing a louver or the like inside the tubular cover 5, glare can be suppressed. In the horizontal cross-sectional shapes of the columnar tubular body 1 and the tubular cover 5,
The shape is not limited to a circular shape, and may be a polygonal shape such as a square shape.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a mounting state of a columnar cylinder and a lamp.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG.

FIG. 4A is an enlarged vertical sectional view showing a drainage passage portion;
(B) is an enlarged vertical sectional view showing the ridge

FIG. 5 is a cutaway perspective view of a mounting member.

FIG. 6 is an overall view of a lighting fixture.

FIG. 7 is a vertical cross-sectional view showing the main parts of the second embodiment.

FIG. 8 is a vertical cross-sectional view showing the main parts of the third embodiment.

FIG. 9 is a horizontal cross-sectional view of the bottom surface side of the attachment member showing the essential parts of the fourth embodiment.

FIG. 10 is a vertical cross-sectional view showing the main parts of the fourth embodiment.

FIG. 11 is a vertical sectional view showing a fifth embodiment.

[Explanation of symbols]

 1 columnar cylinder 4 mounting member 5 cylindrical cover 6 lamp socket 10 first annular groove 10c ceiling surface 10d ceiling surface portion 11 second annular groove 11c bottom surface 11d bottom surface portion 12 lamp 16 drainage passage 18 ventilation passage 20 discharge for condensed water aisle

Claims (6)

[Claims] 1. A mounting member provided with a first annular groove (10) having a downward opening and a lamp socket (6) fitted in the upper end of the columnar cylindrical body (1) from above and below. (4) is attached, and the lower end portion of the translucent cylindrical cover (5) that covers the outer periphery of the lamp (12) mounted in the lamp socket (6) is fitted to the mounting member (4). In the lighting device, a second annular groove (11) having an upward opening is formed, wherein the liquid that has flowed into the second annular groove (11) flows into the attachment member (4). A drainage passage (16) for guiding the discharge into the inside of (10) is formed so as to open outside the outer peripheral surface of the columnar cylindrical body (1) fitted and fixed in the first annular groove (10). And the inner surface of the mounting member (4) facing the first annular groove (10). A ventilation passage (18) communicating between the internal space of the columnar cylinder (1) and the outside between the columnar cylinder (1) fitted and fixed in the first annular groove (10). The luminaire that is formed. 2. A first annular groove (1) of the mounting member (4).
0) of the ceiling surface (10c), at least the ceiling surface portion (10) located at the peripheral edge of the opening of the drainage passage (16).
The luminaire according to claim 1, wherein d) is formed on an inclined surface that is located lower toward the drainage passage (16) side. 3. The luminaire according to claim 1, wherein an upper end surface of the columnar tubular body (1) is formed as an inclined surface which is located downward toward the outer side of the columnar tubular body (1). 4. A second annular groove (1) of the mounting member (4).
Condensation water generated on the inner surface of the tubular cover (5) is drained between the inner surface facing 1) and the tubular cover (5) fitted and fixed in the second annular groove (11). Aisle (16)
The lighting fixture according to claim 1, 2 or 3, wherein a drainage water discharge passage (20) for guiding the discharge is formed. 5. A second annular groove (1) in the mounting member (4).
Of the bottom surface (11c) facing 1), at least the bottom surface portion (11d) located at the peripheral edge of the opening of the drainage passage (16).
The luminaire according to claim 1, 2, 3 or 4, wherein the luminaire is formed on an inclined surface that is located lower toward the drainage passage (16). 6. The drainage passage (16) and the ventilation passage (18) are formed at positions spaced from each other in the circumferential direction of the mounting member (4). ,
The luminaire according to 4 or 5.