JPH0332003Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is directed to a single-cap discharge lamp having, for example, a substantially U-shaped or substantially T-shaped light-emitting portion, which is placed horizontally between the inner surfaces of a reflector. Regarding lighting equipment placed and used in.

(Prior art) In lighting equipment that uses a single-cap discharge lamp placed horizontally between the inner surfaces of a reflector, it is difficult to connect and pull out the lamp horizontally from a lamp socket placed inside the reflector. It was difficult to attach and detach the lamp, and moreover, when pulling the lamp out of the lamp socket, there was a risk that the tip of the lamp would hit the inner surface of the reflector and be damaged, so the operation had to be done carefully.

Therefore, as shown in Japanese Utility Model Application Publication No. 60-40909, for example, the tip of the lamp is made tiltable with respect to the reflector, and when the lamp is removed (reversed when installed),
Rotate the tip of the lamp horizontally between the inner surfaces of the reflector downward, remove the tip of the lamp from the inner surface of the reflector, and expose it diagonally downward, without hitting the tip of the lamp against the reflector. Some are designed to be pulled out from an oblique direction. This has a lamp socket that is supported by a socket fixture on the outside of the reflector so that it can rotate freely between the horizontal direction and diagonally downward. The through hole for connecting the lamp is opened wide along the vertical direction so as not to interfere with the tiltable lamp, and the lamp base is connected to the lamp socket on the outside of the reflector through this through hole. .

(Problems to be solved by the invention) As described above, in the structure in which the lamp socket placed on the outside of the reflector can be rotated together with the socket mount, the structure of the rotating part is complicated and large, and it takes up space. In addition, in order to avoid interference with the rotating lamp, it is necessary to provide a large through hole in the reflector. This impairs the function of the lamp and affects the light distribution characteristics.

Furthermore, since the lamp socket is disposed outside the reflector, it is difficult to connect the lamp to the lamp socket through the through hole of the reflector.

The present invention was developed in view of the above-mentioned problems, and it is possible to make the lamp socket freely tiltable with a simple and compact structure, and to prevent the function of the reflector from being impaired by making the aperture of the reflector smaller. It is also an object of the present invention to provide a lamp lighting device which can hide the opening of the reflector plate to improve its appearance and also allows easy operation of connecting the lamp.

[Structure of the idea]

(Means for Solving the Problems) The present invention provides a lighting device in which a single-cap discharge lamp is placed horizontally between the inner surfaces of a reflector plate, in which the cap mount and the rear surface of the cap mount protrude from the rear surface of the cap mount. The lamp socket is provided with a substantially T-shaped vertical cross section from the supporting part, and the supporting part is inserted into the support hole provided in the reflecting plate, and the lamp socket is engaged with the back side of the reflecting plate to prevent it from coming off. A member is attached to the reflector so as to be tiltable vertically, and the holder holds the tip of a single-base discharge lamp connected to the lamp socket.

(Function) In the present invention, the lamp socket attached to the support hole provided in the reflector is vertically tiltable.

(Example) In FIGS. 4 and 5, reference numeral 1 denotes a ceiling-embedded appliance body, which includes a top reflector 2 constituting a rectangular top plate and a lower surface of the top reflector 2. It consists of a reflecting plate 3 as a side wall, and an edge 6 that is bent outward from the lower edge of the reflecting plate 3 and engages with the edge of the mounting opening 5 of the ceiling plate 4, and an opening 7 is formed on the lower surface. ing.

A plurality of single-cap discharge lamps 8 are arranged in parallel between the inner surfaces of the reflector 3 of the appliance body 1, and each lamp 8 has a substantially U-shaped light-emitting portion 10 with a cap 9 coupled to one side. However, four lamp pins 11 are protruded from the base 9.

Lamp sockets 12 are arranged corresponding to the positions of the bases 9 of each lamp 8 on the reflector plate 3 of the appliance main body 1, and these lamp sockets 12 are connected to the lamps 8 as shown in FIGS. 1 to 3. A substantially diamond-shaped cap mounting portion 14 having a cap insertion recess 13 on the front surface into which the cap 9 is inserted;
The base mounting part 14 has a support part 15 protruding from the rear thereof, and has a substantially T-shaped longitudinal section.In the base insertion recess 13 of the base mounting part 14, there is a pin hole 16 into which the lamp pin 11 is inserted and connected, and a pin hole 16 that passes through the rear surface. Through hole 1
7 and 17, and the support part 15 has a wiring lead-out protrusion 19 from which the wiring cord 18 connected to the terminal in each pin hole 16 is drawn out from the rear, and a wire lead-out protrusion 19 on both sides of the wire lead-out protrusion 19. It consists of horizontally provided guide protrusions 20, 20.

The support portion 15 of the lamp socket 12 is inserted into a support hole 21 provided in the reflector plate 3. This support hole 21 consists of a circular hole portion 22 into which the wiring lead-out projection 19 is inserted, and slot portions 23, 23 into which the guide projections 20, 20 on both sides of this circular hole portion 22 are inserted. The vertical width dimension of the circular hole portion 22 and the slotted hole portion 23 of the hole 21 is wider than the vertical width dimension of the wiring lead-out protrusion 19 and the guide protrusion 20 of the support portion 15. The support part 15 of the lamp socket 12 inserted into the lamp socket 12 is supported so as to be tiltable in the vertical direction. Note that an edge 24 protrudes from the peripheral edge of the support hole 21 toward the back side of the reflecting plate 3.

In addition, the support portion 15 of the lamp socket 12 inserted into the support hole 21 of the reflector plate 3 and protruding from the back surface includes:
An elastic engagement member 25 is attached. The engaging member 25 has a fitting hole 26 in the center thereof into which the wiring lead-out protrusion 19 of the support part 15 is inserted, and an elastic abutting hole 26 bent in a substantially V-shape toward the front side at the lower edge. The engaging member 25 is provided with a portion 27 and the wiring lead-out protrusion 19 is inserted into the fitting hole 26. The front surface of the engaging member 25 abuts the rear surface of the guide protrusion 20, and the setscrews 28, 28 are inserted into the cap insertion recess. 13 and screwed into screw holes 25a, 25a of the engaging member 25 through the through hole 17, and fixed to the lamp socket 12.

Further, a socket cover 29 is attached to cover the outside of the reflector plate 3 to which each lamp socket 12 is attached.

In addition, on the lower surface of the upper surface reflector 2 of the instrument main body 1,
A holder 30 is attached that elastically holds the distal end side of the light emitting portion 10 of the lamp 8 connected to the lamp socket 12 in a detachable manner.

Further, in the opening 7 of the appliance main body 1, a substantially V-shaped buttful 31 in which a lighting device is housed between each lamp 8 is arranged, and a louver 32 is attached to this buttful 31 after each lamp 8 is attached. It will be done.

Next, the operation of this embodiment will be explained.

When the lamp 8 is not attached to the appliance body 1, as shown in FIG.
4 is inclined diagonally downward, and the upper edge of the engagement member 25 is in contact with the upper edge 24 of the support hole 21 .

To attach the lamp 8, insert the base 9 of the lamp 8 from diagonally downward into the base mounting part 14 of the lamp socket 12, and rotate the tip side of the light emitting part 10 of the lamp 8 upward about the lamp socket 12. and hold it in the holder 30. In addition,
Since the lamp socket 12 protrudes from the inner surface of the reflector plate 3 and is visible, the base 9 of the lamp 8 can be easily connected to the lamp socket 12.

In addition, the light emitting part 10 of this lamp 8 is attached to the holder 3.
2, the elastic contact portion 27 at the lower edge of the engagement member 25 presses the back surface of the reflection plate 3 as shown in FIG. However, elasticity is generated that urges the lamp socket 12 backward against the reflector plate 3, and at the lamp mounting position,
The distance between the rear surface of the base mounting portion 14 of the lamp socket 12 and the surface of the reflecting plate 3 is narrowed (or they come into contact with each other), and the support hole 21 of the reflecting plate 3 is hidden. Therefore, the support hole 21 is difficult to visually recognize.

When removing the lamp 8, remove the tip end of the light emitting part 10 of the lamp 8 from the holder 30, rotate it downward around the lamp socket 12, and then remove the tip of the light emitting part 10 of the lamp 8 from the holder 30.
By pulling diagonally downward along the inclination of the lamp 8 when it is removed from the reflecting plate 3, the base 9 can be pulled out from the lamp socket 12 and the lamp 8 can be removed. Therefore, when the lamp 8 is pulled out from the lamp socket 12, there is no risk of the light emitting part 10 of the lamp 8 hitting the reflector 3 of the appliance body 1 and being damaged, and the lamp 8 can be replaced safely.

Note that there is no need to provide a large opening in the reflector 3 as in the conventional case, and only the base mounting portion 14 of the lamp socket 12 is disposed, so that the reflector 3
The function of the light is not impaired, and the light distribution characteristics are also improved.

In addition, since the support hole 21 of the reflector plate 3 is provided with the edge 24, the lamp socket 12 can be easily tilted.
It is possible to prevent the lamp socket 12 from being damaged by the cut surface, and furthermore, the edge of the support hole 21 is reinforced to prevent deformation. Note that a separate member may be used for the edge 24.

[Effect of idea]

According to the present invention, the lamp socket can be tilted freely with a simple and compact structure in which the engaging member is attached to the support part of the lamp socket inserted into the support hole of the reflector. Since the support part is small enough to be supported in a tiltable manner, the function of the reflector is not impaired, and the support hole is hidden by the base mounting part of the lamp socket, resulting in a good appearance. Since the base mounting portion of the lamp socket protrudes from the inner surface of the reflector and can be seen, the lamp connection operation can be easily performed.

[Brief explanation of drawings]

1 and 2 are enlarged sectional views of essential parts showing one embodiment of the lighting device of the present invention, FIG. 3 is an exploded perspective view of the essential parts, FIG. 4 is an overall sectional view, and FIG. FIG. 5 is a perspective view thereof. 3... Reflection plate, 8... Lamp, 12... Lamp socket, 14... Base attachment part, 15... Support part, 21... Support hole, 25... Engaging member, 30...
…holder.

Claims (1)

[Scope of Claim for Utility Model Registration] In a lighting fixture in which a single-cap discharge lamp is arranged horizontally between the inner surfaces of a reflector plate, from a cap mounting portion and a support portion protruding from the rear surface of the cap mounting portion. The lamp socket is provided with a substantially T-shaped longitudinal section, and the support part is inserted into the support hole provided in the reflector plate, and an engaging member for preventing the lamp from coming off is attached to the back side of the reflector plate, and the reflection plate is fixed. Mounted on the board so that it can be tilted vertically,
A lighting device characterized in that a holder holds the tip of a single-cap discharge lamp connected to the lamp socket.