JPS6240487Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a connecting device for lighting equipment, and more particularly, to a structure for connecting ends of elongated equipment such as counter lights.

[Technical background of the invention and its problems]

A conventional lighting fixture of this type has a structure described in Japanese Utility Model Application Publication No. 52-141285. This structure has a screw rod protruding from the end surface of the instrument body, two nuts are screwed into the screw rod, and locking grooves that open laterally are formed at both ends of the connector, and this locking The screw rod is engaged with the groove, the nut is tightened, the connecting tool is clamped and fixed, and this connecting tool is covered with a two-part cover. This structure has poor assembly work efficiency and is prone to manufacturing errors. Also, due to assembly errors, there are steps in the connected instrument bodies, resulting in poor line balance.

[Purpose of invention]

The present invention has been devised in view of the above-mentioned drawbacks, and it is an object of the present invention to provide a connecting device for lighting fixtures that has good workability in connecting fixture bodies and can connect fixture bodies with a well-balanced line.

[Summary of the idea]

The connecting device for a lighting fixture of the present invention includes a fixture body, such as a counter light, whose at least an end portion is formed into a substantially cylindrical shape, and a generally cylindrical connecting body fitted into the end portion of the fixture body, A locking hole communicating with a screw insertion groove opened at the edge is formed at the end of the base plate provided on the inside of the main body, and a stepped portion is formed on the inner circumferential surface of the connecting body to abut the end of the instrument body. A locking portion is formed at the tip of the connecting body to be locked in the locking hole of the device body, and a protruding piece with a threaded screw is protruded, and is connected to the end of the device body. The end edge of the instrument body is positioned by abutting on the step part by fitting the bodies, and the locking part of the protrusion is locked in the locking hole to prevent the instrument body from coming off from the connecting body. The device body is fixed to the connecting body by tightening the base plate and the protruding piece with screws.

[Example of idea]

The configuration of an embodiment of the present invention will be described with reference to the drawings.

Reference numeral 1 denotes a device main body, which is formed by extrusion molding into an elongated body having a substantially semicircular cross section, and has a horizontal substrate portion 2 extending in the longitudinal direction inside, and the upper portion of this substrate portion 2 is formed into a wiring portion 3. ing. A wire insertion groove 4 for wiring to the wiring portion 3 is formed on the upper surface of the main body 1, and the wire insertion groove 4 is closed with a removable cover piece (not shown).

Further, rectangular locking holes 5 are formed at both ends of the base plate portion 2 of the main body 1, and an insertion groove 6 communicating with the locking holes 5 is formed to open at the edge.

In addition, a lamp socket (not shown) for mounting a straight tube lamp is installed near both ends of the circuit board 2 of the device body 1, and a ballast, a capacitor, a terminal block, etc. are installed outside of this lamp socket. ing.

Further, a cover 7 is formed in a substantially semicircular shape, and the cover 7 is detachably attached to both ends of the main body 1 to cover the stabilizer and the like. The instrument body 8 constructed by attaching the cover 7 has both ends formed into a substantially cylindrical shape.

Next, reference numeral 9 denotes a connecting body, which is formed into a substantially cylindrical shape as shown in FIGS. The annular stepped portions 10, 10 are spaced apart and formed into apertures. Further, a mounting hole 12 for a hanging rod 11 is formed on the upper surface of the connecting body 9.

Further, a connecting member 13 is provided on this connecting body 9. This connecting member 13 is formed in a substantially cross shape as shown in FIGS. 6 and 7, and both side projecting pieces 14 of this connecting member 13 are curved along the inner circumference of the connecting body 9. The portion 14 is fixed to the inner circumference of the connecting body 9 by welding or the like. Further, projecting pieces 15 projecting forward and backward of this connecting body 9 are projected from both ends of the connecting body 9, and a locking portion 16 that is locked in the locking hole 5 of the main body 1 is provided at the tip of this connecting body 9. The projecting piece 15 is bent downward, and a screw hole 18 into which a screw 17 is screwed is formed near the tip of the projecting piece 15 .

Next, the operation of this embodiment will be explained.

When the connecting ends of the instrument bodies 1, 1 to be connected are respectively fitted to both ends of the connecting body 9, the ends of the instrument bodies 1 are positioned in the step portions 10, 10, respectively. When fitting the end of the instrument body 8 to the connecting body 9, the screws 17 screwed into the screw holes 18 formed in the front and rear protrusions 15 of the connecting member 13 are inserted into the main body 9.
The locking part 16 falls into the locking hole 5 and is locked and held in place, and when the screw 17 is tightened in this state, the board of the main body 1 is moved. Both side edges of the insertion groove 6 of the portion 2 and the protruding piece 15 of the connecting member 13 are coupled. Then, the cover 7 is attached to the end of the main body 1.

In the above embodiment, the stepped portion 10 of the connecting body 9 was formed by an annular protrusion protruding from the inner periphery by drawing, but it can also be formed by a stepped portion 10 with a reduced diameter as shown in FIG. You may.

Furthermore, the stepped portion 10 may not be formed in an annular shape, but may be formed partially.

Note that the main body 1 may be supported in a suspended manner without supporting the connecting body 9 in a suspended manner.

[Effect of idea]

According to the present invention, a stepped portion is formed on the inner circumferential surface of the approximately cylindrical connecting body that is fitted to the end of the device, so that the end of the device comes into contact with the step. The connecting body can be positioned in the fitting direction with respect to the device body, and the device body whose end is fitted to the connecting body can be connected with good line balance without causing positional shift. A protruding piece with a locking part at its tip that is locked in the locking hole formed in the hole protrudes from the end, and a screw is screwed into this protruding piece. Since the screws that are screwed together are engaged with the insertion grooves of the base plate, the connecting body is positioned in the circumferential direction, the screws are guided into the insertion grooves, and the end of the device body is in a state where it abuts against the stepped part. The locking part is locked in the locking hole, and the connecting body is held in place, and by tightening the screw in this state, the connecting body is fixed to the instrument body, making the connecting operation easier and the installation work of the instrument easier. It is something that can be done.

[Brief explanation of the drawing]

Fig. 1 is a front view showing an embodiment of the present invention, in which lighting equipment is connected by a connecting device, Fig. 2 is an exploded perspective view of a portion of the same, and Fig. 3 is a partial view of the connecting device. A cutaway side view, FIG. 4 is a sectional view of the above connecting body, FIG. 5 is a plan view of the above connecting member, FIG. 6 is a plan view of the same connecting member, FIG. 7 is a side view of the above, and FIG. 8 is another implementation. FIG. 3 is a cross-sectional view of an exemplary coupling body. 2... Board part, 5... Locking hole, 6... Insertion groove,
8... Instrument body, 9... Connecting body, 15... Protruding piece, 1
6...Locking portion, 17...Screw, 18...Screw hole.

Claims (1)

[Scope of utility model claims] It consists of an instrument body with at least an end formed in a substantially cylindrical shape, and a substantially cylindrical connecting body fitted into the end of the instrument body, and an end edge is attached to the end of a base plate provided inside the main body. A locking hole communicating with a screw insertion groove opened in the connecting body is formed, a step portion is formed on the inner circumferential surface of the connecting body to which the end of the device body comes into contact, and the end of the connecting body is provided with a step portion that contacts the end of the device body. A locking part to be locked in the locking hole is formed at the tip, and a protruding piece with a screw fitted thereon is protruded, and a connecting body is fitted to the end of the instrument body to bring the edge of the instrument body into contact with the stepped part. 1. A connecting device for a lighting fixture, characterized in that a locking portion of a protruding piece is in contact with a locking hole, and a locking portion of a protruding piece is locked in a locking hole, and the base plate and the protruding piece are fastened and fixed with screws.