JP6682776B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting device that withstands shock and vibration.

As a lighting device for high ceilings, an earthquake-resistant and shock-resistant lighting device is known. This kind of seismic / impact-resistant lighting equipment is used by being installed in a factory with a lot of vibration, or installed in a carrying machine such as a crane / hoist with a lot of vibration and a shock from the lateral direction (for example, Patent Document 1). 1, Patent Document 2, and Patent Document 3).
In addition, as a lighting fixture for a high ceiling, there is known a lighting fixture in which a fixture main body is suspended and supported on a ceiling via an angle (see, for example, Patent Document 4).

Japanese Utility Model Publication No. 53-52301 Japanese Utility Model Laid-Open No. 2-74713 JP, 2014-26957, A JP, 2013-65411, A

However, when the instrument body is supported by the angle, there is a problem that sufficient vibration resistance and impact resistance cannot be obtained.
Then, an object of the present invention is to provide a lighting fixture having vibration resistance and impact resistance.

In order to achieve the above-mentioned object, the present invention comprises an instrument body, and a support device that supports the instrument body at an installation location, the support device including a pair of arm portions coupled to the instrument body. The bar portion extends across the pair of arm portions, supports the arm portions at both ends, and is interposed between the bar portion fixed to the installation location, the arm portion and the bar portion, and A shock absorber that damps vibrations and shocks transmitted to the arm portion, the arm portion and the bar portion each include a flat portion that sandwiches the shock absorber, and the arm portion and the flat portion of the bar portion. The illumination is formed by bending the respective end portions of the arm portion and the bar portion, and has a bent piece at the end portion located in the direction orthogonal to the bent direction. Provide equipment .

The present invention, in the lighting fixture, before Symbol arm portion, and said folding Kyokuhen the respective ends of the flat portion of the bar portion, characterized in that there I Oremaga in the same direction.

  Further, the present invention is characterized in that, in the above-described lighting fixture, a bending direction of the bending piece is downward.

  Further, the present invention is characterized in that, in the above lighting apparatus, the shock absorber is a helical isolator including a pair of flat plates and a wire wire spirally formed between the flat plates.

  According to the present invention, the vibration and shock that are interposed between the pair of arms and the bar that are coupled to the instrument body and that are transmitted from the bar to the arms are damped by the shock absorber. As a result, in a lighting fixture having a structure in which the bar portion is fixed to the installation location and the fixture body is supported, a fixture having both sufficient vibration resistance and impact resistance is realized.

It is a perspective view of the lighting fixture for high ceilings which concerns on embodiment of this invention. It is an assembly drawing of an instrument main body. It is a perspective view of a hanging angle device. It is an assembly drawing of a hanging angle apparatus. It is a figure which shows the structure of the lighting fixture for high ceilings which concerns on the modification of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing the configuration of a high ceiling lighting fixture 1 according to the present embodiment.
This high-ceiling lighting device 1 is an earthquake-resistant and shock-resistant lighting device that can withstand use in locations where there are many vibrations and shocks. For example, the ceiling or wall surface of a building such as a factory, or a crane / hoist. It is used by being installed in a transport machine such as.
As shown in FIG. 1, the high ceiling lighting fixture 1 includes a fixture main body 2 and a support device 10.

FIG. 2 is an assembly diagram of the instrument body 2.
As shown in FIGS. 1 and 2, the fixture main body 2 includes a plurality of (two in the illustrated example) illumination units 3 having a built-in light source for high ceiling illumination, a top plate 4, a connecting ring 5, and lighting. Unit 6 and.

Each of the lighting units 3 has a housing 3A which is formed of a highly heat conductive material having high heat dissipation and in which a large number of heat radiation fins 7 are integrally formed. Dissipate heat to the outside. The housing 3A is formed in a thin cylindrical shape having a height smaller than the lateral width, and a flange having a front cover 8A having an emission opening for emitting illumination light on the bottom surface and closing the emission opening. 8 are provided. The large number of heat radiation fins 7 are provided on the top surface of the housing 3A.
The flanges 8 of the lighting units 3 are connected to each other by a connecting tool (not shown).

  The connection ring 5 is a ring-shaped member that surrounds all the lighting units 3. The flange 8 of each lighting unit 3 is connected to the connecting ring 5. As a result, the appearance in which the plurality of lighting units 3 are grouped by the connecting ring 5 is obtained, so that even in the configuration having the plurality of lighting units 3, an overall sense of unity is produced and the design is improved. Further, since the respective lighting units 3 are connected to the connecting ring 5, the lighting units 3 are prevented from individually swinging and colliding even when vibration or shock is applied.

The top plate 4 is a plate-shaped member that is arranged above the individual lighting units 3 and has high rigidity, and is suspended and supported by the support device 10.
Each of the lighting units 3 has a plurality of support rods 9 which are erected on the top surface of the housing 3A, and the support rods 9 are fastened to the lower surface 4A of the top plate 4 with screws 13, whereby the illumination is performed. The unit 3 is supported by the top plate 4 on the lower surface 4A side.
In the fixture body 2, the top plate 4 is formed in a disk shape having a size that covers the lighting unit 3 in a plan view, and dust or dust is radiated from the top surface of the housing 3A of the lighting unit 3, particularly heat radiation. It is difficult to deposit between the fins 7.

The lighting unit 6 is a circuit that lights each of the lighting units 3, and as shown in FIG. 1, is mounted on the upper surface 4B of the top plate 4 and includes a unit case 11 having a built-in lighting circuit. The unit case 11 has a substantially rectangular parallelepiped shape and is arranged at the center of the top plate 4.
Since a light emitting element such as an LED is used for the light source of each lighting unit 3, the fixture body 2 includes a lighting circuit that includes a power conversion circuit that converts commercial power into direct current.
When the light source of the lighting unit 3 is a lamp light source such as an HID lamp, the lighting unit 6 may include a ballast as a circuit for lighting.

FIG. 3 is a perspective view of the supporting device 10, and FIG. 4 is an assembly diagram of the supporting device 10.
The support device 10 is a device that suspends and supports the instrument body 2 at an installation location, and has a function of buffering vibration and impact applied to the instrument body 2.
Specifically, the support device 10 is interposed between the pair of arm portions 30 and 30, the support bar portion 34 that supports the arm portions 30 and 30, and the support bar portion 34 and the arm portions 30 and 30. A helical isolator 36 is provided.

The arm portion 30 is a long plate-shaped member whose one end portion 30A is coupled to the instrument body 2.
As shown in FIG. 1, on the upper surface 4B of the top plate 4 of the appliance body 2, a pair of coupling pieces 20 are fixed on both sides of the lighting unit 6, and one end portion of the arm portion 30 is attached to the coupling pieces 20. 30A is bound.
As shown in FIG. 3, a fixing hole 38 and an arcuate elongated hole 40 are formed in one end 30 </ b> A of the arm portion 30, and a bolt is passed through the fixing hole 38 and fastened to the coupling piece 20. The shape of the arc-shaped elongated hole 40 is a part of the circumference around the fixing hole 38, and the instrument body 2 is rotated within the range of the arc-shaped elongated hole 40 around the fixing hole 38, and The mounting angle is adjustable.

  The other end 30B of the arm portion 30 is provided with a hooking portion 42 that is hooked and supported so as to cover the support bar portion 34 from above. The hook portion 42 is formed integrally by bending the other end portion 30B of the arm portion 30 to approximately 90 degrees.

  The support bar portion 34 is a plate-shaped member that extends between the pair of arm portions 30, and a mounting hole 46 that is attached to the installation location of the instrument body 2 with a bolt or the like is formed in the central portion 34A. The support bar portion 34 extends in a direction substantially orthogonal to the direction in which the unit case 11 of the lighting unit 6 extends, and the mounting hole 46 is formed at a position directly above the unit case 11. . Further, each of both ends 34B of the support bar portion 34 is provided with a receiving portion 48 which receives the hooking portion 42 of the arm portion 30 and supports it from below. These receiving portions 48 are integrally formed by bending both end portions 34B of the support bar portion 34.

The helical isolator 36 is an example of a so-called shock absorber that damps vibrations and impacts transmitted from the support bar portion 34 to the arm portion 30. The helical isolator 36 includes two flat plates 50, 50 arranged in parallel vertically and a wire wire 53 spirally formed between the flat plates 50. The two flat plates 50, 50 are fixed to the receiving portion 48 of the support bar portion 34 and the hook portion 42 of the arm portion 30, respectively.
Then, when the vibration of the factory, the vibration of the transport machine, or the like and the shock are applied to the support bar portion 34, the vibration and the shock are buffered by the elastic action of the wire wire 53 of the helical isolator 36, and are transmitted to the arm portion 30. Is suppressed.

  As the helical isolator 36, one having sufficient cushioning performance against vibrations and impacts in any of the three-dimensional directions generated at the installation location is used, which allows the vibration resistance and the vibration resistance of the instrument body 2 to be improved. It is possible to obtain the high-ceiling lighting fixture 1 that sufficiently satisfies both the impact resistance.

Next, the manner of assembling the helical isolator 36 into the support device 10 will be described in detail.
As shown in FIG. 4, the receiving portions 48 of both end portions 34B of the support bar portion 34 have a flat surface portion 58 on which the flat plate 50 of the helical isolator 36 is placed and fixed. As shown in FIGS. 3 and 4, the flat surface portion 58 is formed at a position lower than the central portion 34A of the support bar portion 34 by more than the thickness of the helical isolator 36. Then, as shown in FIG. 3, the helical isolator 36 is placed on the flat surface portion 58 in a posture in which the axial direction A of the spiral loop wire wire 53 is orthogonal to the extending direction B of the support bar portion 34, It is fixed.
On the other hand, the hook portion 42 of the arm portion 30 has a planar shape facing the flat surface portion 58, and the flat plate 50 of the helical isolator 36 is also fixed to the hook portion 42.

Here, a bent piece 60 bent at approximately 90 degrees is formed at each end of the flat surface portion 58 of the support bar portion 34 and the hook portion 42 of the arm portion 30.
In each of the support bar portion 34 and the arm portion 30, the bent pieces 60 are bent in the same direction (downward in the illustrated example). In this configuration, as shown in FIG. 3, as compared with the case where the bending pieces 60 are bent in the directions facing each other in the support bar portion 34 and the arm portion 30, respectively, the flat portion 58 of the support bar portion 34, and The gap δ between the hook portions 42 of the arm portion 30 becomes large. As a result, even if the helical isolator 36 elastically deforms due to vibration or impact, it is possible to avoid contact between the flat surface portion 58 and the hook portion 42.

  In particular, in this supporting device 10, since all the bending pieces 60 are bent in the downward direction, dust and dirt on the flat surface portion 58 of the support bar portion 34 and the hook portion 42 of the arm portion 30 are prevented. Accumulation can be prevented.

As described above, in the present embodiment, the support device 10 includes the pair of arm portions 30 and the support bar portion 34 that are coupled to the instrument body 2, and between the arm portions 30 and the support bar portion 34. The helical isolator 36 is interposed.
As a result, vibrations and shocks transmitted from the support bar portion 34 to the arm portion 30 are buffered by the helical isolator 36, so that the support bar portion 34 is fixed to the installation location and the instrument body 2 is supported. In the lighting fixture 1, both sufficient vibration resistance and impact resistance are obtained.

Further, in the present embodiment, the flat pieces 58 of the support bar portion 34 and the bent pieces 60 formed at the respective ends of the hook portions 42 of the arm portions 30 are bent in the same direction.
As a result, the gap δ between the flat surface portion 58 of the support bar portion 34 and the hook portion 42 of the arm portion 30 increases, and even when the helical isolator 36 elastically deforms due to vibration or impact, the flat surface portion 58 and the hook portion 42 contact each other. Can be avoided.

  In addition, in the present embodiment, since the bending direction of the flat surface portion 58 of the support bar portion 34 and all the bent pieces 60 of the hook portion 42 of the arm portion 30 is set to the downward direction, the flat surface portion 58 of the support bar portion 34 and the arms are formed. It is possible to prevent dust and dirt from accumulating on the hooking portion 42 of the portion 30.

Further, in the present embodiment, the helical isolator 36 including the pair of flat plates 50 and the wire wire 53 spirally formed between the flat plates 50 is used as a shock absorber, and the arm portion 30 and the support bar portion are used. 34.
This makes it possible to easily achieve both excellent vibration resistance and impact resistance at the same time, even under conditions where vibration and impact are applied in any of the three-dimensional directions.

  The above-described embodiment is merely an example of one aspect of the present invention, and can be arbitrarily modified and applied within the scope of the gist of the present invention.

  FIG. 5: is a figure which shows the structure of the lighting fixture 100 for high ceilings which concerns on this modification. In addition, in the same figure, the structure of the instrument main body 2 is simplified and drawn. The same members as those in the above-described embodiment are designated by the same reference numerals, and the description thereof will be omitted.

The high-ceiling lighting fixture 100 shown in the figure is different from the high-ceiling lighting fixture 1 of the embodiment in the configuration of the support device 110.
Specifically, the support device 110 is different in that both end portions 134B of the support bar portion 134 are formed to have a length extending to the outside of the pair of arm portions 30. In this supporting device 110, since the total length of the supporting bar portion 134 can be increased, a large number of mounting holes 46 can be provided, and the supporting bar portion 134 can be firmly fixed to the installation location.

  The high ceiling lighting fixture 100 also includes a shock absorber 136 that is different from the helical isolator 36. The shock absorber 136 is optional as long as it can obtain sufficient vibration resistance and shock resistance, and may be, for example, an elastic member such as rubber or spring, or a device that absorbs vibration and shock using hydraulic pressure. .

  Further, in the above-described embodiment and modified example, the configuration of the instrument body 2 is arbitrary as long as it is a configuration supported by the support device 10.

1,100 High-ceiling lighting fixture 2 Fixture main body 3 Lighting unit 4 Top plate 6 Lighting unit 10,110 Support device 11 Unit case 20 Coupling piece 30 Arm part 34,134 Support bar part (bar part)
36 Helical Isolator
42 Hooking part 48 Receiving part 50 Flat plate 53 Wire wire 58 Flat part 60 Bending piece 136 Shock absorber

Claims (4)

The instrument body,
A supporting device for supporting the instrument body at an installation location,
The supporting device is
A pair of arm portions coupled to the instrument body,
A bar portion that extends over the pair of arm portions, supports the arm portions at both ends, and is fixed to an installation location,
A shock absorber interposed between the arm portion and the bar portion, which absorbs vibration and shock transmitted from the bar portion to the arm portion,
The arm portion and the bar portion include a flat surface portion that sandwiches the shock absorber,
The arm portion and the flat portion of the bar portion are formed by bending the respective end portions of the arm portion and the bar portion, and the end portions located in the direction orthogonal to the bent direction are A lighting fixture having a bent piece. The lighting device according to claim 1, wherein the bent pieces at the respective ends of the flat portion of the arm portion and the bar portion are bent in the same direction as each other. The luminaire according to claim 2, wherein the bending direction of the bent piece is downward. The shock absorber is
The lighting fixture according to any one of claims 1 to 3, which is a helical isolator including a pair of flat plates and a wire wire spirally formed between the flat plates.

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