JPH11213742A - Fluorescent lamp appliance directly attachable to ceiling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide fluorescent lamp appliance saved in troublesome work and cost for electric connection by electrically connecting the appliance body and reflecting plates through rotary hooking type fixing tools. SOLUTION: This fluorescent lamp appliance is provided with a luminaire body to be attached directly to the ceiling. The appliance is further provided with reflecting plate installation stands 20 made of a metal and fixed in the lower face side of the body and reflecting plates 30 made of a metal in the lower face sides of the stands. The installation stands 20 and the reflecting plates 30 are joined by rotary hooking type fixing tools 40 in a manner that the stands 20 and the plates 30 are freely detached. Each of the fixing tool 40 is constituted of a metal part 41 and a resin part covering at least a part of the metal part 41. Knob part 46 are formed for rotation in parts where the resin parts are exposed. Installation side contact parts 48 for electric connection with the installation stands 20 by pressure connection are formed in the metal parts 41 and reflecting plate side contact plates 49 for electric connection with the reflecting plates by pressure connection are formed in the metal parts 41. The body and the reflecting plates 30 are electrically connected through the routes of the body, the installation stands 20, the installation stand side contact parts 48, the fixing tools, reflecting plate side contact parts 49, and the reflecting plates 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent light fixture directly mounted on a ceiling, which uses a rotary hook-type fixture for detachably connecting a reflector mounting base and a reflector.

[0002]

2. Description of the Related Art An apparatus main body which is directly attached to a ceiling surface is provided, a metal reflector mounting base fixed to a lower surface side of the apparatus main body is provided, and a metal reflector plate disposed on the lower surface side is provided. 2. Description of the Related Art A ceiling-mounted fluorescent lamp apparatus including a rotary hook-type fixture for detachably connecting the reflector mounting base and the reflector is known. An example of the conventional fixing device 40 is as shown in FIG. It comprises a metal part 41 and a resin part 45 covering the metal part 41 all over. Since it is made of resin that is softer than metal in appearance, it has high rotation operability. In addition, since the metal part 41 is buried inside, it is strong.

[0003]

A conventional ceiling-mounted fluorescent lamp apparatus using the conventional fixture shown in FIG. 5 uses a means for electrically connecting the apparatus body and the reflector. Thereby, when the fixture body is grounded, the reflector is also grounded at the same time. SUMMARY OF THE INVENTION It is an object of the present invention to provide an inexpensive ceiling ceiling in which a fixture main body and a reflector are electrically connected to each other via a rotary hook-type fixing device, thereby reducing labor and cost for the electrical connection. It is to provide a mounted fluorescent lamp fixture.

[0004]

According to the present invention, the fixture is constituted by a metal part 41 and a resin part covering at least a part of the metal part 41. A knob for rotating operation is formed in a range where the resin portion is exposed. The metal part is provided with a mounting part side contact part which is in pressure contact with the reflection plate mounting part and is electrically connected thereto. The metal part is provided with a reflector-side contact portion that is in pressure contact with the reflector and is electrically connected to the reflector. Between the instrument body and the reflector, the instrument body-reflector mounting base-mounting part side contact part-fixture-
The reflector-side contact portion is electrically connected to the reflector via a path.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. In this description, the above-mentioned terms or component symbols are diverted as much as possible, and a part of the repeated description is omitted as appropriate. 1 to 4 includes a fixture main body 10 that is directly attached to a ceiling surface (not shown). There is provided a metal reflector mounting base 20 fixed to the lower surface side of the instrument body 10. A metal reflecting plate 30 is provided on the lower surface side thereof. A rotation hook type fixing tool 40 for detachably connecting the reflection plate mounting base 20 and the reflection plate 30 is provided. The fixture 40 includes a metal part 41 and a resin part 45 covering at least a part of the metal part 41. A knob portion 46 for the rotation operation is formed in a range where the resin portion 45 is exposed. The metal part 41 is provided with a mounting base side contact part 48 which is in pressure contact with the reflector mounting base 20 and is electrically connected thereto. The metal plate 41 is provided with a reflector-side contact portion 49 which is in pressure contact with the reflector 30 to be electrically connected thereto. The fixture body 10 and the reflector 30 are electrically connected by the route of the fixture body 10, the reflector mount 20, the mount-side contact portion 48, the fixture 40, the reflector-side contact portion 49, and the reflector 30. Supplement the details of the structure. Reference numeral 11 denotes a lighting device (ballast) fixed to the lower surface side of the appliance body 10. Reference numeral 12 denotes a socket table fixed to the lower surface side of the instrument body 10. Lamp socket 13 mounted on socket base 12
Is located below the reflector 30 after passing through the reflector 30. A discharge lamp (fluorescent lamp) 90 is mounted on the lamp mounting portion of the lamp socket 13. The number of the socket base 12, the lamp socket 13, and the discharge lamp 90 is two. The reflector mounting base 20 has a deformed hexagonal shape, and both ends of the
It is fixed to both side edges. In the center of the lower part of the reflector mounting base 20, there is an upper receiving hole 21 in the shape of a burrow. The reflection plate 30 is of an inverted Fuji type. The angular discharge lamp 90 corresponds to each of the inclined surfaces. The lower receiving hole 31 shown in FIG.
There is. The periphery of the lower receiving hole 31 becomes a flat portion 32. The flat portion 32 is formed by crushing a part of the lower ridge line 39 of the reflection plate 30 so as to be flat. The supplement 30 will be supplemented. The upper side of the metal part 41 is exposed, and the lower side is covered with the resin part 45. The fixture 30 is made by synthetic resin molding in which a part of the metal part 41 is embedded in a mold in advance. The lower end portion of the fixture 30 becomes a knob portion 46, and the metal portion 41 in the vicinity thereof is covered with the resin portion 45.
The upper end of the fixture 30 is a metal triangular plate-shaped engaging portion 42. The engaging portion 42 has a shape that can pass through the upper receiving hole 21 and the lower receiving hole 31 respectively. When the fixture 30 has a certain rotation phase around the vertical axis, the engaging portion 42 cannot pass through the upper receiving hole 21. 1 and 2 show this state. 1 and 2, the engagement portion 4
The edge of 2 corresponds to the edge of the upper receiving hole 21. This contact is a metal-to-metal contact and also an electrical connection. Engaging part 4
The contact portion 2 is the mounting base side contact portion 48. A shaft 44 is provided between the engaging portion 42 and the knob 46. Shaft 4
Reference numeral 4 denotes a shape in which a metal plate portion is sandwiched between a pair of resin portions, and an edge of the metal plate portion is exposed around an axis. The edge of the metal plate portion has a tapered shape that spreads downward, but the lowermost portion has a shape that narrows downward. Then, the narrowed portion is formed by the reflection plate side contact portion 4.
It becomes 9. The reflector side contact portion 49 is pressed against the edge of the lower receiving hole 31 in the reflector 30. Further, since the pressure contact is made at the narrowed portion, a mechanism of resilient engagement between the fixture 40 and the reflection plate 30 is provided. Reference numeral 47 denotes a flat portion formed on the upper surface side of the knob portion 46, and normally contacts the flat portion 32. The procedure for mounting the reflector 30 will be described. The engagement portion 42 is inserted into the lower receiving hole 31 from below the reflection plate 30. The gripper 46 is grasped and the fixture 40 is strongly pushed up and rotated about a vertical axis. Thereby, the position of the reflector side contact portion 49 is elastically engaged with the edge of the lower receiving hole 31.
Under such circumstances, the reflector 30 is lifted to a high place. Reflector 3
The engaging portion 42 of the fixing tool 40 engaged with the engagement member 0 is inserted into the upper receiving hole 21. Then, fix the fixture 40 around the vertical axis 4 times.
Rotate about 5 degrees. Thereby, the engaging portion 42 rides on the narrow edge of the upper receiving hole 21, and the position of the mounting base contact portion 48 is stably engaged.

[0006]

According to the present invention, the fixing tool is constituted by a metal part and a resin part covering at least a part of the metal part, and a knob part for rotating operation is formed in an area where the resin part is exposed, The metal portion is provided with a mounting-side contact portion that is in pressure contact with a reflector mounting base to be electrically connected thereto, and the metal portion is provided with a reflector-side contact portion that is in pressure contact with the reflector and is electrically connected thereto. Is the main feature. According to this, since the fixture body and the reflector can be electrically connected to each other via the rotary hook-type fixing tool, an inexpensive direct-mount fluorescent lamp that saves trouble and cost for electrical connection. A lighting fixture is obtained.

[Brief description of the drawings]

FIG. 1 is a right side sectional view of the device of the present invention.

FIG. 2 is an enlarged front sectional view of a main part showing the main part.

FIG. 3 is an enlarged perspective view showing the fixture.

FIG. 4 is an enlarged plan view of a main part showing a main part of the reflector.

FIG. 5 is a perspective view showing a conventional fixture.

[Explanation of symbols]

 10: Instrument body 20: Reflector mounting base 30: Reflector 40: Fixing tool 41: Metal part 45: Resin part 46: Knob part 48: Mounting base side contact part 49: Reflector side contact part

Claims (1)

[Claims] 1. An apparatus main body (10) directly attached to a ceiling surface, and a metal reflector mounting base (20) fixed to a lower surface side of the apparatus main body (10), and disposed on a lower surface side thereof. A reflector (30) made of a metal, and a fixture (40) of a rotary hook type for detachably connecting the reflector mount (20) and the reflector (30). ) Is replaced with a metal part (41) and the metal part (4).
A metal part (41) comprising a resin part (45) covering at least a part of 1), and forming a knob part (46) for the rotation operation in a range where the resin part (45) is exposed; A mounting base side contact portion (48) that is in pressure contact with and electrically connected to the reflector mounting base (20);
A ceiling-mounted fluorescent lamp apparatus characterized in that a reflection plate side contact portion (49) is provided on the metal portion (41) so as to be pressed against and electrically connected to the reflection plate (30).