JPH0641022U - lighting equipment - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a lighting fixture in which an insect or the like is prevented from entering from a mounting portion of a fixture body without using a separate member such as a packing. [Structure] The instrument body 1 is formed of sheet metal, and the instrument body 1
Concave 16 with a circular opening on the surface facing the construction surface in
Equipped with. In the recess 16, a mounting bracket fixed to the construction surface is housed between the depression and the construction surface. The bottom surface of the recess 16 is formed with a mounting hole 18 through which a mounting screw screwed into a mounting bracket is inserted.
A projecting ridge 19 projecting toward the construction surface is provided on the opening edge of the recess 16 over the entire circumference. By tightening the mounting screw inserted through the mounting hole 18, the ridge 19 can be in close contact with the construction surface over the entire circumference and prevent small insects or the like from entering through the mounting hole 18.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a luminaire that is electrically connected via a ceiling outlet.

[0002]

[Prior art]

 Conventionally, as shown in FIG. 6, a mounting bracket 2 is provided in which an instrument body 1 made of a metal plate having a lamp holder 36 is fixed to a construction surface such as a ceiling surface in the vicinity of a ceiling outlet 5 fixed to the construction surface. Lighting fixtures are provided that are attached to the construction surface by using. A mounting screw 21 is screwed onto the mounting bracket 2, and the tool body 1 is mechanically coupled to the mounting tool 2 by holding the tool body 1 between the head of the mounting screw 21 and the mounting tool 2. It is supposed to be done.

Power is supplied to the lamp 4 held by the lamp holder 36 provided in the fixture body 1 through the ceiling outlet 5 fixed to the construction surface. Therefore, an insertion hole 17 into which the sealing cap 35 coupled to the power supply line or the sealing outlet 5 is inserted is formed near the attachment hole 18 (see FIG. 2) in which the mounting screw 21 is inserted in the instrument body 1. . Further, a globe (not shown) that covers the lamp is attached to the fixture body 1 to control the light distribution.

In the luminaire having the above configuration, the space surrounded by the luminaire body 1 and the globe is almost closed, but the mounting hole 18 for inserting the mounting screw 21 and the insertion hole 17 for inserting the electric wire are open. ing. Further, since the instrument body 1 is formed of sheet metal, and the amount of deformation varies depending on the location when the mounting screw 21 is tightened, a slight gap is formed between the instrument body 1 and the construction surface. It will be. Therefore, there arises a problem that small insects enter the space surrounded by the instrument body 1 and the glove through the mounting hole 18 and the insertion hole 17.

In order to solve such a problem, a ring-shaped packing 3 that surrounds the area where the attachment hole 18 and the insertion hole 17 are formed is sandwiched between the instrument body 1 and the construction surface. It is considered to wear. That is, the packing 3 made of an elastic material such as rubber is attached to the instrument body 1 in advance, and the mounting screw 21 is tightened to bring the packing 3 into close contact with the construction surface, and the instrument body 1 and the construction surface. The path from the gap between the attachment hole 18 and the insertion hole 17 is blocked so that small insects cannot enter the space surrounded by the instrument body 1 and the glove.

[0006]

[Problems to be solved by the device]

 In the above-mentioned conventional configuration, the backing 3 is required to prevent small insects and the like from entering the space surrounded by the instrument body 1 and the glove, so that the number of parts is increased. There is a problem that the work man-hours increase and the cost becomes high. Moreover, there is a problem that it takes a lot of time to attach the packing 3 so as not to shift it to a predetermined position. Since it is formed by heat, there is also a problem that it deteriorates over time due to the heat generated from the lamp.

The present invention is intended to solve the above problems, and prevents insects and the like from entering from the attachment part of the instrument body without using a separate member such as packing, and reduces the number of parts. It aims to provide a luminaire that reduces costs and simplifies assembly work.

[0008]

[Means for Solving the Problems]

 According to the present invention, in order to achieve the above object, an electrical connection is made through a sealing component fixed to a construction surface, and a mounting screw screwed to a mounting bracket fixed to the construction surface in the vicinity of a sealing outlet. In a lighting fixture in which the main body of the fixture is mechanically fixed to the construction surface, a recess that has an annular opening edge and accommodates the mounting bracket between the construction surface and the surface of the main body of the fixture that faces the construction surface A mounting hole for inserting the mounting screw is formed on the bottom surface of the recess, and a ridge protruding toward the construction surface over the entire circumference of the opening edge of the recess is continuously and integrally projected on the instrument body. -ing

[0009]

[Action]

 According to the above structure, the recess for accommodating the mounting bracket with the construction surface is formed in the main body of the equipment, and the protrusion protruding toward the construction surface is provided over the entire circumference of the opening edge of the recess. Since the mounting hole for inserting the mounting screw is formed on the bottom surface of the recess, if the mounting screw screwed to the mounting bracket is tightened to mechanically fix the instrument body to the mounting bracket, The ridges are in close contact with the construction surface, and the path from the gap formed between the equipment body and the construction surface to the mounting hole is blocked, and as a result, small insects can be prevented from entering through the mounting hole. You can Furthermore, since the ridge is continuously and integrally provided on the instrument body over the entire circumference of the opening edge of the recess formed in the plate material, the ridge portion has a high rigidity and the mounting screw tightening position. Regardless of the condition, it is possible to make the ridges stick to the construction surface almost evenly. That is, it is possible to prevent small insects from passing through the attachment hole without using the elastic material backing as in the conventional configuration.

[0010]

【Example】

 As shown in FIG. 3, a socket base 32 having a socket 31 for holding the straight tube-shaped lamp 4 attached to the lower end is fixed to the lower surface of the instrument body 1 formed of a metal plate. Further, an inverter device 33 as a lighting circuit for the lamp 4 is arranged on the lower surface of the instrument body 1. A power supply line 34 to the inverter device 33 is connected to a ceiling cap 35 connected to a ceiling outlet 5 fixed to a construction surface such as a ceiling surface. Here, the sealing cap 35 is a plug having a hooking blade, and is configured to lock the connected state when the hooking blade is inserted into the sealing outlet 5 and then rotated.

The instrument body 1 includes a base 11 having a rectangular outer peripheral edge, and two end covers 12 each having a semicircular outer peripheral edge and connected to both ends of the base 11 in the longitudinal direction. The outer peripheral edge is formed to have an elliptical shape. In addition, a side plate 13 is integrally hung on the outer peripheral edge of the instrument body 1 over the entire circumference. Therefore, the base 11 has two substantially parallel side plates 13, a pair of kick springs 14 is provided near one side plate 13, and a hook 15 is provided near the other side plate 13. . The kick spring 14 is formed by bending an elastic metal wire into a substantially inverted V shape, and the top portion is fixed to the instrument body 1 so that both leg pieces are lowered from the instrument body 1. A locking portion 14a that is bent in a substantially circular shape is formed at the tip of the kick spring 14. On the other hand, the hook 15 is connected to the instrument body 1 so as to be swingable in the width direction of the instrument body 1, and is biased toward the outside of the instrument body 1 by a spring. Further, in the hook 15, a shoulder portion 15b protruding outward of the instrument body 1 is connected to a lower end portion of a connecting portion 15a that hangs downward from a coupling portion with the instrument body 1, and a lower end side faces the inside of the instrument body 1. A curved portion 15c formed in a curved shape is integrally formed in a shape continuous with the tip of the shoulder portion 15b.

The kick spring 14 and the hook 15 are provided to detachably connect the globe 6 covering the lower surface side of the instrument body 1 to the instrument body 1. The globe 6 is made of synthetic resin and has a bag shape. A projecting wall 6a is formed over the entire circumference at the opening portion that is formed in the instrument body 1 and is attached to the instrument body 1. The projecting wall 6a is formed so as to be inserted inside the side plate 13 of the instrument body 1, and a support metal fitting 7 is fixed to a portion of the inner surface of the projecting wall 6a corresponding to the kick spring 14, and a hook is formed on the projecting wall 6a. A bent portion 6b for reinforcement is formed at a portion corresponding to 15. As shown in FIG. 4, the support metal fitting 7 is formed in a substantially L-shaped cross section in which a vertical piece fixed to the projecting wall 6 a and a horizontal piece projecting inward of the projecting wall 6 a are connected to each other. A hook hole 7a is formed in the piece. A notch 7b is formed at one location on the periphery of the hook hole 7a, and the hook hole 7a is opened to the outer peripheral edge of the lateral piece through the notch 7b.

When the glove 6 is attached to the instrument main body 1, the tip of the kick spring 14 is introduced into the hook hole 7a through the notch 7b, and then the glove 6 is pushed upward. When the distance is widened to prevent the glove 6 from falling downward, and when the projecting wall 6a of the glove 6 pushes the curved portion 15c of the hook 15 inward and the projecting wall 6a gets over the shoulder 15b of the hook 15, the device The vicinity of the projecting wall 6a of the glove 6 is sandwiched between the side plate 13 of the main body 1 and the shoulder portion 15b of the hook 15, so that the glove 6 is held by the instrument main body 1. On the other hand, in order to detach the globe 6 from the instrument body 1 when replacing the lamp 4, the globe 6 may be pulled down, and a downward force acts on the shoulder portion 15b of the hook 15 so that the hook 6 is not hooked. 15 moves inward, and the globe 6 moves downward against the spring force of the kick spring 14. At this time, the hook 15 is disengaged from the globe 6, but since the periphery of the hook hole 7a is engaged with the engaging portion 14a provided at the lower end of the kick spring 14, the globe 6 will not fall off completely. As shown in FIG. 5, the globe 6 is pivotally supported about the lower end of the kick spring 14. Therefore, the lamp 4 can be easily replaced because the storage area for the lamp 4 is largely opened. When completely removing the glove 6 from the instrument body 1 for cleaning the glove 6, the distance between the leg pieces of the kick spring 14 may be shortened, and the kick bar 14 may be pulled out from the hook hole 7a through the notch 7b.

By the way, as shown in FIG. 1, a circular recess 16 is formed in the center of the upper surface of the base 11 of the instrument body 1, and a sealing cap 35 is inserted in the center of the bottom of the recess 16. A circular insertion hole 17 is formed for this purpose. Further, a plurality of (four) elongated attachment holes 18 are formed in the peripheral portion of the insertion hole 17 which is the bottom surface of the recess 16. As shown in FIG. 2 (a), the mounting hole 18 is formed in an arc shape along the longitudinal direction so as to be curved on a circumference centered on the bottom surface of the recess 16, and at one end in the longitudinal direction. A lead-in portion 18a is formed that is wider than the diameter of the head of a mounting screw 21, which will be described later. The fixing portion 18b, which is the other end side in the longitudinal direction of the mounting hole 18, is narrower than the diameter of the head portion of the mounting screw 21. As shown in FIG. 2B, a ridge 19 is continuously and integrally formed on the opening edge of the recess 16 over the entire circumference. Here, the projecting dimension H _L of the ridge 19 is slightly smaller than the projecting dimension H _{D of the} dowel 20 shown in FIG. 1 projecting from the upper surfaces of both ends of the instrument body 1 in the longitudinal direction (for example, H _L = H _D -1 [mm]) is set.

When mounting the instrument main body 1 having the above-mentioned configuration on a construction surface such as a ceiling surface, the circular mounting metal fitting 2 fixed on the construction surface so as to surround the ceiling outlet 5 fixed on the construction surface is used. To use. If the ceiling outlet 5 is circular and has hooking ears, the mounting bracket 2 engages with the hooking ears, and if the ceiling outlet 5 does not have hooking ears, the mounting bracket 2 It can be fixed directly to the construction surface with screws. Such a fixing structure of the mounting bracket 2 is well known. A mounting screw 21 is screwed onto the peripheral portion of the mounting bracket 2. The mounting screw 21 is screwed to the mounting bracket 2 so as to project downward.

In order to fix the instrument body 1 to the construction surface, first, the sealing cap 35 is connected to the sealing outlet 5 for electrical connection, and the mounting screw 21 is loosely screwed to the mounting bracket 2. , The head of the mounting screw 21 is inserted into the introduction portion 18a of the mounting hole 18, and then the instrument body 1 is rotated so that the mounting screw 21 is introduced into the hook portion 18b of the mounting hole 18, and finally the mounting screw 21 Tighten 21. When the attachment screw 21 is tightened, the dowel 20 first comes into contact with the construction surface, and when the attachment screw 21 is further tightened, the instrument body 1 bends and the ridge 19 comes into close contact with the construction surface. Since the ridge 19 is formed so as to surround the entire circumference of the recess 16 and has high strength, it does not deform even when the mounting screw 21 is tightened, and the ridge 19 can be formed over the entire circumference. It can be closely attached to the construction surface, and as a result, invasion of small insects can be prevented. Further, since the ridges 19 are formed on the peripheral edge of the opening of the recess 16 so as to be continuous with the peripheral wall of the recess 16, the portions where the ridges 19 are formed are folded when the recess 16 is squeezed. Since it is a bent portion, it is easier to form the ridges 19 as compared with the case where the ridges 19 are formed in other portions, and even if the ridges 19 are formed, they are formed in other positions. There is almost no effect such as distortion. Furthermore, since the ridges 19 are formed in a circular shape, the device body 1 can be smoothly rotated even when the ridges 19 are in contact with the construction surface.

[0017]

[Effect of device]

 According to the present invention, as described above, the recess for accommodating the mounting bracket with the construction surface is formed in the instrument body, and the projecting ridge protruding toward the construction surface is formed over the entire circumference of the opening edge of the recess. Since the mounting hole for inserting the mounting screw is formed on the bottom surface of the recess, the mounting screw that is screwed into the mounting bracket is tightened and the instrument body is mechanically fixed to the mounting bracket. By doing so, the ridges are in close contact with the construction surface and the path from the gap formed between the equipment body and the construction surface to the mounting hole is blocked, and as a result, small insects etc. are prevented from entering through the mounting hole. It has the advantage that it can Furthermore, since the ridge is continuously and integrally projected on the main body of the device over the entire circumference of the opening edge of the recess formed in the plate material, the ridge portion has high rigidity and the mounting screw tightening position. It is possible to make the ridges stick to the construction surface almost evenly regardless of the condition. That is, there is an advantage that small insects can be prevented from passing through the attachment hole without using a backing made of an elastic material as in the conventional configuration.

[Brief description of drawings]

FIG. 1 shows an embodiment, (a) is a bottom view, and (b) is a partially broken side view.

FIG. 2 shows an embodiment, (a) is an enlarged plan view of a main part,
(B) is an enlarged sectional view of a main part.

FIG. 3 is an exploded perspective view showing the overall configuration of the embodiment.

FIG. 4 is a perspective view of a main part of the embodiment.

FIG. 5 is a perspective view showing a state where a glove is opened in the embodiment.

FIG. 6 is a cross-sectional view of a main part showing a conventional example.

[Explanation of symbols]

 1 Instrument Main Body 2 Mounting Bracket 5 Sealing Outlet 16 Recess 18 Mounting Hole 18a Introducing Part 18b Hooking Part 19 Projection 21 Mounting Screw 35 Sealing Cap

Claims (1)

[Scope of utility model registration request] 1. An electrical connection is made through a ceiling outlet fixed to the construction surface, and the instrument body is mechanically attached to the construction surface by a mounting screw that is screwed to a mounting bracket fixed to the construction surface in the vicinity of the ceiling outlet. In the lighting fixture that is fixed to the lighting fixture that is fixed to the lighting device, a recess for accommodating the mounting bracket between the lighting fixture and the construction surface is formed on the surface facing the construction surface of the fixture body made of a plate material. A lighting fixture formed by forming a mounting hole through which a mounting screw is inserted, and continuously projecting a protrusion on the fixture body so as to project to the construction surface side over the entire circumference of the opening edge of the recess.