JP4392544B2 - lighting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a lighting fixture in which a reflector facing a lamp is attached to a fixture body with a mounting screw.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a lighting fixture includes a fixture main body in which a lamp socket and a lighting device are disposed, and a reflector attached to the fixture main body, and the lamp is mounted on the lamp socket of the fixture main body so as to face the reflector. . The fixture body and the reflector are formed of a metal material, and the reflector is attached to the reflector plate by a mounting screw that is screwed into the reflector plate mounting portion from the reflector side while the reflector plate is in contact with the reflector mounting portion provided on the fixture body. It is tightened and attached to the main body.
[0003]
[Problems to be solved by the invention]
In such a luminaire, when the lamp is turned on with the lamp turned off and the luminaire is at room temperature, each member of the luminaire is generated by the heat of the lamp for about 15 minutes after the lamp is turned on. The temperature of the rises rapidly. Further, even when the lamp is turned on and the lamp is turned off in a state where the temperature of the lighting fixture has risen, the heat of each member causes the temperature of each member to rapidly decrease.
[0004]
The reflector is easily affected by the heat generated by the lamp facing the lamp, so distortion is likely to occur due to a sudden temperature change when the lamp blinks, and squeaky abnormal noise is caused by this distortion. There are problems that occur. In particular, in a lighting fixture that uses a straight tube fluorescent lamp, the reflector is long in the lamp longitudinal direction and uses a lot of flat surfaces. Therefore, the distortion tends to be large and abnormal noise tends to occur.
[0005]
This invention is made in view of such a point, and it aims at providing the lighting fixture which can suppress generation | occurrence | production of the noise by the temperature change at the time of lamp blink state switching.
[0006]
[Means for Solving the Problems]
The lighting fixture according to claim 1 is in contact with the fixture main body; a reflector attached to the fixture main body by being attached to a reflector attachment portion formed by cutting and raising the attachment surface ; and at least in the vicinity of the reflector attachment portion of the reflector. And an abnormal noise suppressing member having at least one characteristic of heat insulation, vibration absorption and elasticity.
[0007]
And the characteristic which suppresses generation | occurrence | production of abnormal noise is specified by making the abnormal noise suppression member which has at least 1 characteristic of heat insulation, vibration absorption property, and elasticity contact at least a reflecting plate, and lamp blinking state switching Suppresses the generation of abnormal noise due to temperature changes. When the noise suppressing member has a heat insulating property, a rapid temperature change of the reflecting plate or the like is suppressed, and the generation of noise is suppressed. When the abnormal noise suppressing member has vibration absorption, it absorbs the vibration of the reflecting plate or the like when abnormal noise is generated and suppresses the generation of abnormal noise. When the noise suppressing member has elasticity, the reflection plate or the like is allowed to be displaced to suppress the generation of noise.
[0008]
The lighting fixture according to claim 2 is a fixture main body; a reflection plate disposed on the fixture main body by being attached to a reflection plate attachment portion formed by cutting and raising the attachment surface ; and an attachment for attaching the reflection plate to the reflection plate attachment portion. A noise suppressing member which is in contact with at least the reflecting plate at a portion where the reflecting plate is attached to the reflecting plate mounting portion by a mounting screw and has at least one characteristic of heat insulation, vibration absorption and elasticity. It is what.
[0009]
Then, the abnormal noise suppressing member having at least one of the characteristics of heat insulation, vibration absorption, and elasticity is brought into contact with at least the reflection plate at a portion where the reflection plate is attached to the reflection plate attachment portion with an attachment screw. The characteristic which suppresses generation | occurrence | production is specified, the generation | occurrence | production location of the abnormal noise by the temperature change at the time of lamp blink state switching is specified, and generation | occurrence | production of abnormal noise is suppressed. When the noise suppressing member has a heat insulating property, a rapid temperature change of the reflecting plate or the like is suppressed, and the generation of noise is suppressed. When the abnormal noise suppressing member has vibration absorption, it absorbs the vibration of the reflecting plate or the like when abnormal noise is generated and suppresses the generation of abnormal noise. When the noise suppressing member has elasticity, the reflection plate or the like is allowed to be displaced to suppress the generation of noise.
[0010]
The lighting fixture according to claim 3 is the lighting fixture according to claim 1 or 2, wherein the noise suppressing member is disposed between the reflector mounting portion and the reflector.
[0011]
Since placing the abnormal noise suppression member between the reflecting plate mounting portion and the reflection plate, the generation of abnormal noise from between the reflector plate mounting portion and the reflector can be suppressed.
[0012]
The lighting fixture according to claim 4 is the lighting fixture according to claim 1 or 2, wherein the noise suppressing member is disposed between the reflector and the mounting screw.
[0013]
And generation | occurrence | production of the noise from between a reflecting plate and an attachment screw can be suppressed.
[0014]
The lighting fixture according to claim 5 is the lighting fixture according to claim 4, wherein the noise suppressing member disposed between the reflector and the mounting screw is a washer.
[0015]
And the abnormal noise suppression member arrange | positioned between a reflecting plate and an attachment screw is a washer, and generation | occurrence | production of unusual noise can be easily suppressed only by engaging a washer with an attachment screw.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
1 to 3 show an embodiment, in which FIG. 1 is a perspective view of a part of a lighting fixture in an exploded state, FIG. 2 is a sectional view of the lighting fixture, and FIG. 3 is a perspective view of the lighting fixture.
[0018]
As shown in FIG. 3, the luminaire is an embedded luminaire embedded in a ceiling surface or the like, and is a two-lamp type using two straight tube fluorescent lamps L as a lamp. It is formed in a long shape corresponding to the longitudinal direction of the fluorescent lamp L. The lighting fixture includes a fixture body 11, lamp sockets 12 disposed at both ends of the fixture body 11, a lighting device (not shown) provided in the fixture body 11, a reflector 13 attached to the fixture body 11, and the like. Have.
[0019]
The instrument body 11 is made of metal and is formed in a box shape having a top plate portion 16, side plate portions 17 on both sides, and end plate portions 18 on both ends, an irradiation opening 19 is formed on the lower surface, and a peripheral edge is formed on the periphery. An edge portion 20 having a substantially L-shaped cross section joined to a ceiling surface or the like is formed.
[0020]
As shown in FIGS. 1 and 2, lamp socket bases 21 included in the instrument main body 11 are attached to both ends of the instrument main body 11. A plurality of holding portions 22 are cut and raised at both ends of the side plate portions 17 on both sides with a space in the vertical direction, and both sides of the lamp socket base 21 are inserted and engaged between the upper and lower holding portions 22. .
[0021]
The lamp socket base 21 has a base 23, and substantially U-shaped engagement portions 24 are formed on both sides of the base 23 by being inserted and engaged between the upper and lower holding portions 22. The base 23 is formed with lamp socket mounting portions 25 to which the lamp sockets 12 are mounted on both sides corresponding to the positions of the two straight tube fluorescent lamps L. A reflection plate attachment portion 26 for attaching the reflection plate 13 to the center side is formed.
[0022]
The reflection plate attachment portion 26 is formed by cutting and raising from the base portion 23, an attachment surface 27 to which the reflection plate 13 is joined and attached is formed, and an attachment hole 28 is formed in the center of the attachment surface 27.
[0023]
Further, the reflector 13 is made of a metal material, the reflecting surface portion 31 facing substantially parallel to the irradiation opening 19 of the instrument body 11, and the reflection on both sides bent obliquely downward from both sides of the reflecting surface portion 31. An engagement piece 33 that has a surface portion 32 and is engaged with the inside of the side plate portions 17 on both sides of the instrument main body 11 is bent at the tips of the reflection surface portions 32 on both sides.
[0024]
At both ends of the reflector 13, notches 34 through which the lamp sockets 12 are inserted are formed, and insertion holes 35 are formed corresponding to the positions of the attachment holes 28 of the reflector attachment parts 26. .
[0025]
A mounting screw 36 is used to mount the reflector 13 to the instrument body 11 side. The mounting screw 36 has a screw shaft 37 having a screw thread formed around it and a head 38 molded with a synthetic resin. It is composed of screws.
[0026]
In addition, the reflector mounting portion 26 on the side of the instrument body 11 is provided with an abnormal noise suppressing member 41 for suppressing the generation of abnormal noise due to a temperature change when the lamp blinking state is switched. The abnormal noise suppressing member 41 has at least one characteristic of heat insulation, vibration absorption, and elasticity. For example, the sheet body 42 is a sheet body 42 formed of a material such as urethane or silicon. One surface of 42 is coated with, for example, an adhesive good and is attached so as to cover the mounting surface 27 of the reflector mounting portion 26. A hole 43 is formed in the center of the sheet body 42 in correspondence with the position of the mounting hole 28.
[0027]
When attaching the reflector 13 to the instrument body 11, the reflector 13 is inserted into the instrument body 11 through the irradiation opening 19 of the instrument body 11, and the reflector 13 is attached to the reflector plate 26 on the instrument body 11 side. That is, while pressing against the sheet body 42 of the noise suppressing member 41, the mounting screw 36 is attached to the mounting hole 28 of the reflecting plate mounting part 26 through the insertion hole 35 of the reflecting plate 13 and the hole 43 of the sheet body 42 of the noise suppressing member 41. And the reflecting plate 13 is fastened and fixed to the reflecting plate mounting portion 26. In the mounted state of the reflecting plate 13, the sheet body 42 of the noise suppressing member 41 is interposed between the reflecting plate mounting portion 26 and the reflecting plate 13.
[0028]
By the way, when the straight tube fluorescent lamp L is turned on while the straight tube fluorescent lamp L is turned off and the lighting fixture is at room temperature, it takes about 15 minutes after the straight tube fluorescent lamp L is turned on. Due to the heat generated by the straight tube fluorescent lamp L, the temperature of each member of the lighting fixture rapidly increases. Further, even when the straight tube fluorescent lamp L is turned on and the straight tube fluorescent lamp L is turned off in a state where the temperature of the lighting fixture has risen, the heat of each member causes the temperature of each member to rapidly decrease. Come on. The reflector 13 faces the straight tube fluorescent lamp L and is easily affected by the heat generated from the straight tube fluorescent lamp L. Therefore, distortion occurs due to a rapid temperature change when the lamp blinks. Due to this, there is a risk that squeaky abnormal noise may occur. An experiment was conducted to identify the location where the abnormal noise was generated in the absence of the sheet body 42 of the abnormal noise suppressing member 41.From the portion where the reflective plate 13 was attached to the reflective plate mounting portion 26 on the instrument body 11 side by the mounting screw 36. It was confirmed that there were many abnormal sounds.
[0029]
By identifying the location of abnormal noise due to temperature changes when the lamp blinks and switching, the sheet body 42 of the abnormal noise suppressing member 41 is interposed between the reflector mounting portion 26 and the reflector 13 to suppress abnormal noise. Generation of abnormal noise can be suppressed by the action of the sheet body 42 of the member 41.
[0030]
That is, when the noise suppressing member 41 is a sheet body 42 having heat insulation properties, it is possible to suppress a sudden temperature change of the reflecting plate 13 and to suppress the generation of noise.
[0031]
Further, when the abnormal sound suppressing member 41 is a sheet body 42 having vibration absorption, it is possible to absorb the vibration of the reflector 13 when abnormal noise is generated and to suppress the generation of abnormal noise.
[0032]
Further, in the case where the noise suppressing member 41 is an elastic sheet body 42, the reflection plate mounting portion 26 on the side of the instrument body 11 is allowed to be displaced due to expansion or contraction of the reflection plate 13, and noise is generated. Can be suppressed.
[0033]
Since the noise suppressing member 41 has a combination of heat insulating properties, vibration absorbability, and elasticity characteristics, the generation of abnormal noise can be further suppressed by these synergistic effects.
[0034]
Furthermore, by arranging the sheet body 42 of the noise suppressing member 41 between the reflector mounting part 26 on the instrument body 11 side and the reflector 13, abnormal noise from between the instrument body 11 and the reflector 13 can be obtained. Generation can be suppressed.
[0035]
In addition, as shown in FIG. 4, the noise suppressing member 41 may be arranged as a washer 46 between the reflector 13 and the mounting screw 36, and in this case, the washer 46 is attached to the screw shaft 37 of the mounting screw 36. By merely engaging the hole 47, it is possible to easily suppress the generation of abnormal noise including abnormal noise from between the reflecting plate 13 and the mounting screw 36.
[0036]
Further, both the sheet body 42 and the washer 46 of the noise suppressing member 41 may be used together, and the generation of noise can be further suppressed. Further, in the vicinity of the portion where the reflection plate 13 is attached to the reflection plate attachment portion 26 on the instrument body 11 side by the attachment screw 36, another noise suppression member 41 is arranged in contact with the reflection plate 13, etc. On the other hand, the occurrence of abnormal noise can be further suppressed by disposing the plural abnormal noise suppressing members 41 in a state of contacting the plural places.
[0037]
The abnormal noise suppressing member 41 is not limited to the portion where the reflection plate 13 is attached to the reflection plate mounting portion 26 on the instrument body 11 side by the mounting screw 36, and even when it is arranged near that portion, the generation of abnormal noise is suppressed. it can.
[0038]
The lighting fixture can be applied to a one-lamp type lighting fixture or a three-lamp type or more, and also to a lighting fixture that uses other lamps such as an annular fluorescent lamp other than the straight tube fluorescent lamp L. Applicable.
[0039]
【The invention's effect】
According to the lighting device of claim 1, since the noise suppressing member having at least one of the characteristics of heat insulation, vibration absorption and elasticity is brought into contact with at least the reflecting plate, the generation of noise is suppressed. By specifying the characteristics, it is possible to suppress the generation of abnormal noise due to temperature changes when the lamp blinking state is switched.
[0040]
According to the luminaire of claim 2, the noise suppressing member having at least one of the characteristics of heat insulation, vibration absorption, and elasticity is reflected at least at a portion where the reflection plate is attached to the reflection plate attachment portion with an attachment screw. Since the contact with the plate is made, it is possible to specify the characteristics that suppress the generation of abnormal noise, and to specify the location where the abnormal noise is generated due to the temperature change at the time of lamp blinking switching, thereby suppressing the generation of abnormal noise.
[0041]
According to the lighting fixture of Claim 3, in addition to the effect of the lighting fixture of Claim 1 or 2, since the noise suppression member was arrange | positioned between the reflecting plate attaching part and the reflecting plate, the reflecting plate attaching part Generation of noise from between the reflector and the reflector can be suppressed.
[0042]
According to the lighting fixture of claim 4, in addition to the effect of the lighting fixture of claim 1 or 2, the noise suppressing member is disposed between the reflection plate and the mounting screw. It is possible to suppress the generation of abnormal noise from between.
[0043]
According to the luminaire described in claim 5, in addition to the effect of the luminaire described in claim 4, the noise suppressing member disposed between the reflector and the mounting screw is a washer, and the washer is attached to the mounting screw. Generation of abnormal noise can be easily suppressed simply by engaging.
[Brief description of the drawings]
FIG. 1 is a perspective view of an exploded state of a part of a lighting fixture showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view of the same lighting fixture.
FIG. 3 is a perspective view of the lighting apparatus.
FIG. 4 is a partially exploded perspective view of a lighting fixture showing another embodiment of the present invention.
[Explanation of symbols]
11 Instrument body
13 Reflector
26 Reflector mounting part
27 Mounting surface
36 Mounting screw
41 Abnormal noise suppression member
46 Washer

Claims (5)

An instrument body;
A reflector attached to the instrument body by attaching it to a reflector attachment part formed by cutting and raising the attachment surface ;
An abnormal noise suppressing member that is in contact with at least the vicinity of the reflector mounting portion of the reflector and has at least one characteristic of heat insulation, vibration absorption, and elasticity;
The lighting fixture characterized by comprising. An instrument body;
A reflector disposed on the instrument body by attaching it to a reflector attachment portion formed by cutting and raising the attachment surface ;
A mounting screw for attaching the reflector to the reflector mounting portion ;
A noise suppressing member that is in contact with at least the reflection plate at a portion where the reflection plate is attached to the reflection plate attachment portion with an attachment screw and has at least one of heat insulation, vibration absorption, and elasticity;
The lighting fixture characterized by comprising. The illuminating device according to claim 1 or 2, wherein the noise suppressing member is disposed between the reflector mounting portion and the reflector. The lighting apparatus according to claim 1, wherein the noise suppressing member is disposed between the reflector and the mounting screw. The lighting apparatus according to claim 4, wherein the noise suppressing member disposed between the reflector and the mounting screw is a washer.

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