JPS6336083B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a hook ceiling used for connecting a power source to a lighting device or the like.

[Prior art]

Fig. 1 shows a ceiling-mounted fluorescent light fixture, for example, for three straight tube fluorescent lamps, using a conventional hook ceiling, in which 1 is the ceiling, 2 is a hook ceiling body attached to the ceiling 1, 3 is a lighting fixture body attached to the ceiling 1, 4 is three straight tube fluorescent lamps, 5 is a transparent cover, 6 is a hook ceiling cap connected to the hook ceiling body 2, and 7 is a hook ceiling cap 6. This is the connected output line.

However, the conventional hanging ceiling cap 6 used in such lighting equipment was developed and widely used for power connection of cord-hanging lighting equipment, and is shown for example in Japanese Utility Model Publication No. 52-9266. It was constructed as shown in Figures 2 to 4. That is, in the figure, 8 is a hook ceiling cap body (hereinafter simply referred to as the main body), 9 is a lead wire outlet provided at the bottom of the central part of the body, 10 is a pair of hook fittings attached to the main body 8, and 11 is a screw terminal provided at the base of this hook 10, and the main body 1 is connected to a tension stop device 15 consisting of a round cord inclusion 12 which is the outlet wire 7, a ring 13, and a cover 14 around the outlet 9. In addition, the terminal screw of the screw terminal 11 or the wire core 16 of the round cord protrudes from the top surface of the main body 8 and must have a depth that does not interfere with fitting to the hook sealing body. I needed it.

Therefore, when the above-mentioned hanging ceiling cap is used in a ceiling-mounted lighting fixture as shown in Figure 1, it is difficult to make the lighting fixture thinner because the hanging ceiling cap is thick and the electric wires protrude downward. It had the disadvantage of being.

[Summary of the invention]

The present invention provides a lead wire outlet on the side of the main body, which is formed by a push-cut hole in the bottom of the main body by at least the wall thickness of the side of the main body, thereby making it possible to reduce the thickness of the lighting equipment. It is easy to form the lead wire outlet, and it is easy to insert the lead wire into the lead wire outlet, which improves the ease of assembly.Moreover, there is a high degree of freedom in wiring the lead wire led out from the lead wire outlet. The purpose of the present invention is to provide a hook seal that can be improved.

[Embodiments of the invention]

5 to 7 show an embodiment of the present invention, in which 20 is a bottomed box-like main body, and 21 is this main body 2.
0 is the bottom surface, 22 is the longitudinal side wall of the main body 20, 23
2 is a longitudinal side wall of the main body 20, and 24 is an outlet formed from a portion of the bottom surface 21, which is slightly wider than the thickness of the longitudinal side wall 22, to the longitudinal side wall 22.
That is, the outlet port 24 is a punched hole formed by moving a pair of molds, each consisting of a female mold called a cavity and a male mold called a core, in one direction. Reference numeral 40 denotes a plurality of protrusions provided on the main body 20, including guide protrusions 2 formed inside the longitudinal side walls 22 on both sides of the outlet 24.
5. A support part 26 provided from the tip of one guide protrusion 25 at right angles to the guide protrusion, a guide protrusion 27 provided at a position facing the other guide protrusion 25, and a support part 27 provided on the side of the support part 26. It consists of a locking projection 28 and a locking projection 29 provided on the side of the guide projection 27. Reference numeral 30 denotes two locking portions provided at the distal ends of the locking projections 28 and 29 so as to face the opposing longitudinal side walls 22, respectively. Reference numeral 31 denotes two guide protrusions provided on the outer sides of the locking protrusions 28 and 29, respectively. 32
are a pair of hooks made of conductive material, and are connected to the main body 20.
It is fixed to the main body 20 so as to face the longitudinal side wall 22 of the main body 20 at a predetermined angle. 33 is a hook formed on the hook 32 so as to protrude from the upper surface of the main body 20, and 34 is a terminal portion formed by bending one end of the hook 32 downward. 35 is a countersunk mounting screw for fixing the hook 32 to the main body 8. 36 is a lead wire such as a flat vinyl cord specified in JISC3306, and one wire core 37 inserted into the lead wire outlet 24 and separated is connected to the guide protrusion 25.
It is twisted around the support part 26 so as to surround the support part 26 and bent, and is further press-fitted between the stop part 30 and the bottom surface 21 and is prevented from coming off upward by the stop part 30. The terminal portion 34 of one of the hook fittings 32 is twisted around the locking protrusion 28 and bent.
Connected by soldering. Also, the other wire core 37
is guided by the guide protrusion 25 and the guide protrusion 27, is press-fitted from the locking part 30 between the locking part 30 and the bottom surface 21, and is prevented from coming off upward by the locking part 30. It is bent around the hook 29 and connected to the terminal portion 34 of the other hook 32 by soldering. The other side of the lead line 36 is the main body 20.
It is led out from the outlet 24 in a direction substantially perpendicular to the direction in which the hook 32 protrudes.

In the hook ceiling constructed as described above, since the lead wire outlet 24 is provided on the side of the main body 20, the lead wire outlet 24 is provided on the side of the main body 20, so when it is used in a ceiling-mounted fluorescent light fixture as shown in FIG. Since the line 36 is led out parallel to the ceiling, the distance between the fluorescent lamp 4 and the ceiling 1 can be significantly reduced. Also, the output wire outlet 24
Since this is a punched hole that spans the side wall 22 and bottom surface 21 of the main body 20, there is an advantage that it can be molded using a mold with a simple structure. Furthermore, if the hole is a push-cut hole, a portion of the bottom surface 21 side of the main body is also opened, so when connecting the lead wire 36 to the hook fitting 32, the lead wire 36 is inserted from the outside of the lead wire outlet 24. Since the insertion angle can be large, insertion is extremely easy. In addition, an output wire 36 led out from the output wire outlet 24
Since it is possible to lead out at an angle to the bottom surface 21 side, for example, even if an electrical component such as a terminal block is brought closer to the main body 20, the connection can be made without taking a large bend in the lead wire 36. I can do it. Therefore, it becomes possible to shorten the length of the lead wire 36.

However, the lead wire outlet 24 is connected to the side wall surface 22.
If holes are formed only on the surface, the mold needs to be a so-called slide core, which has the drawback of making the mold complex and expensive. Further, there are restrictions on the direction of insertion of the lead wire 36, resulting in poor workability. Further, an output line 36 led out from the output line outlet 24
Since there is no margin in the lead-out angle, it is necessary to bend the lead wire 36 significantly for connection with other electrical components, which causes problems such as the need for extra length.

Further, in the above embodiment, the locking portion 30 allows the lead wire 3 to
6 is prevented from lifting up, the lead wire 36 can be placed in close contact with the bottom surface 21, which allows for a thinner profile. The output wire 36 does not float up and protrude from the upper surface of the main body 20, thereby preventing it from being connected to the hook ceiling body.

〔Effect of the invention〕

As explained above, in this invention, a push-cut hole-shaped lead wire outlet that spans the bottom of the main body is provided on the side of the hook ceiling cap body, so that the hook ceiling itself can be made thinner. It is possible to make the lighting equipment thinner using this hanging ceiling. In addition, it is easier to insert the lead wire during assembly, and the lead wire can be led out at an angle toward the bottom of the main body, making it possible to connect to other electrical components without requiring extra length. play.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view showing a lighting fixture using a conventional hanging ceiling cap, and Figures 2 to 4 are diagrams showing conventional hanging ceiling caps.
The figure is a partially cutaway front view, FIG. 3 is a plan view, and FIG. 4 is an exploded perspective view. 5 to 7 are views showing an embodiment of the present invention, and FIG. 5 is a perspective view of the hooking ceiling cap from the bottom side;
FIG. 6 is a perspective view from the top side, and FIG. 7 is a sectional view showing the main parts. In the figure, 20 is the main body, 24 is the lead wire outlet,
32 is a hook, 36 is a lead line, and the same reference numerals in the drawings indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A hook ceiling body that is attached to a fixed member such as a ceiling, and a hook ceiling cap that has a pair of hook fittings and is electrically and mechanically connected to the hook ceiling body via the hook fittings. In the hook ceiling, a lead wire outlet is provided on the side of the main body of the hook ceiling cap, which is formed by a push-cut hole cut out of the bottom of the hook ceiling body by at least the wall thickness of the side portion of the hook ceiling body. Features a hook ceiling.