JPS6244401Y2 - - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a fluorescent light fixture.

2. Description of the Related Art Conventionally, there is a fluorescent lamp apparatus that includes a chassis having a U-shaped cross section and a gutter-like reflector that is curved in one direction and is open at both ends, and the reflector is mounted inside the chassis. In such a case, the reflector may be deformed by external force or lateral pressure of the chassis when the reflector is attached to the chassis with screws. Therefore, it is necessary to attach the lamp socket to the reflecting plate rather than to the chassis side, and to determine the relative position of the lamp socket to the reflecting surface to prevent variations in light distribution characteristics.

As a means of attaching a lamp socket to a reflector,
Conventionally, the lamp socket is attached to the reflector plate by fixing it to the reflector plate with a plurality of screws or by welding a socket mounting base to the reflector plate. but,
In the installation method using multiple screws, a cord connector is provided between the lighting device provided on the chassis side and the lamp socket, and the cord is wired using this connector, and after the lamp socket is installed, the cord on the lamp socket side is connected to the connector. This allows the lamp socket to be installed. Furthermore, it is necessary to suspend the reflector to which the lamp socket is attached from the chassis using chains during wiring work, which increases the number of parts and makes the installation work cumbersome.
Furthermore, even if the socket mount is welded to the reflector, the cord of the lamp socket must be passed through the back side of the reflector, so it is necessary to attach the lamp socket to the reflector and then attach the reflector to the chassis. Therefore, during wiring work, it is difficult to work unless the reflector is suspended with a chain.

This invention was developed in view of the above-mentioned points, and the purpose is to provide a fluorescent light fixture that is easy to install and can have uniform light distribution characteristics.

This device is mounted rotatably around one side edge within a box-shaped chassis with a U-shaped cross section, and is curved to cover the straight tube lamp in a direction perpendicular to the tube axis of the straight tube lamp. A gutter-shaped reflecting plate with reflective surfaces open at both ends is detachably provided, a socket mounting base for holding a lamp socket is provided with a pair of locking pieces facing each other with the lamp socket in between, and a pair of locking pieces are provided near both ends of the reflecting plate. a socket insertion hole into which the lamp socket is inserted; a locking hole in which the locking piece on the outside in the longitudinal direction of the straight tube lamp is located on the surface side of the reflector plate; The locking pieces on the inner side of the direction and the locking bodies that are located on the back side of the reflector and engage elastically are arranged along the longitudinal direction of the reflector, and the socket is mounted. The present invention is characterized in that bonding edges that are pressed against the back surface of the reflector are bent along the longitudinal direction of the reflector on both sides of the base. Therefore, after wiring the lamp socket held in the socket mounting base and the electrical components on the chassis side, the lamp socket is inserted into the socket insertion hole formed in the reflector plate while the reflector plate is attached to the chassis. There is no need to suspend the reflector with a chain; one locking piece of the socket mount engages with the locking hole of the reflector, and the other locking piece elastically engages with the locking body of the reflector. As a result, the socket mounting base can be attached to the reflector plate with a single touch, and the relative position between the reflector plate and the lamp socket can be determined to make the light distribution characteristics uniform.

An embodiment of this invention will be described based on the drawings. Reference numeral 1 denotes a box-shaped chassis with a U-shaped cross section that is attached to the ceiling, and a mounting plate 2 extending along the longitudinal direction of the chassis 1 is attached to one inner surface of the chassis 1 with screws 3. In the inner surface 4 of the mounting plate 2, a plurality of holes (not shown) into which the thumbscrews 5 are screwed are formed in a plurality of rows in the vertical direction along the longitudinal direction.

Next, a reflecting plate 7 is provided which has a reflecting surface 6 curved along the width direction of the chassis 1. The chassis 1 is attached to one side edge of the reflector 7.
A plurality of tongue pieces 9 are formed to be inserted into holes 8 formed on one side edge of the tongue. Further, socket insertion holes 10 and locking holes 11 located outside these socket insertion holes 10 are formed in the vicinity of both ends of the reflection plate 7 in a communicating state. Of course socket insertion hole 1
0 and the locking hole 11 may be formed independently. Furthermore, an elastic locking piece 12 serving as a locking body is positioned inside the socket insertion hole 10 and fixed with a screw 13. These elastic locking pieces 12 are made of leaf springs. A socket mounting base 15 having a U-shaped cross section is provided to hold a lamp socket 14 inserted into the socket insertion hole 10 from above. These socket mounting bases 15 are formed with locking pieces 16 and 17 that face each other with the lamp socket 14 in between. Furthermore, finger hook holes 18 are formed on both sides of the socket mount 15 while curling inward.

In such a configuration, the installation work first involves attaching the chassis 1 to the ceiling. Then, electrical components such as a ballast 19 attached to the chassis 1 and the lamp socket 14 are connected. This work can be performed extremely easily since the reflector plate 7 is attached later. Next, insert the tongue piece 9 of the reflector plate 7 into the hole 8 of the chassis 1, hold one side of the reflector plate 7, and in this stable state insert the lamp socket 1 into the socket insertion hole 10.
Insert 4. With this operation, the locking piece 16 passes through the locking hole 11 and engages with the surface of the reflection plate 7,
The locking piece 17 engages with the elastic locking piece 12 on the back surface of the reflector plate 7 and is held elastically, and is bent along the longitudinal direction of the reflector plate 7 at both lower edges of the socket mounting base 15. The formed joint edge 22 is pressed against the back surface of the curved reflection plate 7. Then, the thumbscrew 5 is inserted into the hole 21 formed in the reflection plate 7.
is screwed onto the mounting plate 2 to fix the reflecting plate 7, and the straight tube lamp 20 is connected to the lamp socket 14. In this state, the lamp socket 14 receives an external force in the direction toward both ends of the reflector 7;
The expanded portion 14a is joined to the upper surface of the reflector plate 7, and the locking piece 16 is formed in an L shape so that it does not float upward, so that the lamp socket 14 does not fall. Since the upper part of the elastic locking piece 12 is bent into a dogleg shape, there is no possibility that the elastic locking piece 12 will engage with a sheared edge when it engages with the locking piece 17, and the locking and disengaging operation will be performed smoothly and reliably. sell. In addition, since the joint edge 22 of the socket mount 15 is pressed against the back surface of the reflector 7 along the longitudinal direction, the directionality of the socket mount 15 with respect to the reflector 7 is accurately determined, and thereby the reflector 7 and straight tube lamp 2
The relative position with respect to 0 can be determined accurately.

In this way, the lamp socket 14 can be attached to the reflector plate 7 with one touch using the socket mount 15, so that the reflector plate 7 can be attached after wiring, and the wiring and installation work as a fluorescent lamp device is easy. Further, the lamp socket 14 is held by a socket mounting base 15 having a U-shaped cross section, and is attached to the reflecting plate 7 by this mounting base 15, so that the relative position with respect to the reflecting surface 6 is fixed and the light distribution characteristics are also uniform.

In addition, by screwing the knob screw 5 into the other hole of the mounting plate 2, the light distribution characteristics can be changed by adjusting the reflection plate 7 to any rotational position in the vertical direction around the tongue piece 9. It is possible.

Further, when the socket mounting base 15 is provided with a locking piece using a leaf spring, the reflection plate 7 may be provided with a locking body that is not flexible. In any case, it suffices as long as they are in a resiliently engaged relationship.

Since this invention is configured as described above, even if the lamp socket and the electrical components on the chassis side are connected in advance by cord wiring, the reflector can be attached to the chassis, and then the lamp socket can be attached to the reflector together with the socket mounting base. The wiring work is easy because it can be attached to the board with one touch, and there is no need to hang the reflector with a chain as in the past, making the installation work easy. Since it is attached by pressure contact to the back surface of the plate, and the locking piece is engaged with the locking hole, the position of the socket mount with respect to the reflector is accurately determined, and therefore the reflector The relative position between the lamp and the straight tube lamp is accurate, and it is possible to obtain uniform light distribution characteristics over each product.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figure is a reduced perspective view, the second figure is a longitudinal front view, and the third figure is a reduced perspective view.
The figure is a partial exploded perspective view showing the relationship between the reflector and the socket mount, and FIG. 4 is a partial vertical sectional side view showing the mounting state of the socket mount. 1... Chassis, 6... Reflective surface, 7... Reflective plate, 10... Socket insertion hole, 11... Locking hole,
12...Elastic locking piece (locking body), 14...Lamp socket, 15...Socket mounting base, 16-17
... Locking piece, 20 ... Straight tube lamp, 22 ... Joint edge.

Claims (1)

[Scope of utility model registration request] Both ends are rotatably mounted in a box-shaped chassis with a U-shaped cross section and have reflective surfaces curved to cover the straight tube lamp in a direction perpendicular to the tube axis of the straight tube lamp. An open gutter-shaped reflector plate is provided in a manner that can be freely engaged and detached, a pair of locking pieces are provided on a socket mounting base that holds the lamp socket and are opposed to each other with the lamp socket in between, and the lamp socket is inserted near both ends of the reflector plate. a locking hole in which the locking piece located on the outer side in the longitudinal direction of the straight tube lamp is located on the surface side of the reflector plate and engages with the socket insertion hole, and a locking hole on the inner side in the longitudinal direction of the straight tube lamp; The locking pieces are arranged along the longitudinal direction of the reflector and locking bodies that are located on the back side of the reflector and engage elastically are provided, and the locking pieces are arranged on both sides of the socket mounting base. A fluorescent lamp fixture characterized in that a joint edge that is pressed against the back surface of the reflector is bent along the longitudinal direction of the reflector.