JPS637667B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hooking connector that connects a spot lighting device or the like by attaching it to a hanging plug, thereby making an electrical connection as well as a mechanical connection.

When installing removable spot lighting equipment, ceiling adapters, etc. in conventional stores,
As shown in FIG. 1, a wiring duct 10 is provided and a plug 2 is detachably attached to the wiring duct 10. For this reason, even when it is desired to install only one spot lighting device, a short wiring duct 10 must be constructed because the plug 2 is used. Furthermore, since the wiring duct 10 has an opening over the entire length of the plug 2 mounting surface, depending on the mounting direction, dust may enter the interior and cover the live part 30, and if the live part 30 is exposed, electric shock may occur. There is a risk of

In view of these points, the present invention uses a hooking rosette for attaching a plug for a wiring duct, and the insertion hole for plug connection in this hooking rosette is automatically opened and closed to prevent dust from entering and charging. The object of the present invention is to provide a hooking connector that prevents the exposed portion of the hook from being exposed.

The present invention will be explained in detail below based on illustrated embodiments. Examples are shown in FIG. 2 and below. In the figure, 1 is a hooking rosette, and 2 is a plug. Starting with the hooking rosette 1, the hooking rosette 1 includes a metal base plate 3, a cover 4 that covers the bottom surface of the base plate 3, and is fixed on the base plate 3. A pair of locking pieces 14, 14 protrudes from opposite sides of an opening provided in the center of a base plate 3, which is configured from a terminal block 5 and fixed to a ceiling surface or the like. The cover 4, which is fixed to the base plate 3 with screws 29, has a groove 16 on the lower center surface, as is clear from FIG. 2, and a rectangular insertion hole 15 in the center of the groove 16.
A protrusion 17 along this groove 16 is provided on one side of the groove 16 . Furthermore, the terminal block 5 has a body 1 whose bottom surface is open.
1, and a pedestal 1 disposed in the lower opening of the body 11.
2, and a rectangular protective cover 1 that is vertically movable in a recess 18 provided on the lower surface of the pedestal 12.
3, a part of each of the pair of terminal plates 6 arranged in the body 11 is exposed on the opposing inner wall of the recess 18 of the pedestal 12, and the pedestal 12 and the protective cover 13 A spring 19 is disposed between the protective cover 13 and the protective cover 13. When the terminal block 5 is fixed to the upper surface of the base plate 3, the pair of terminal plates 6 exposed on the inner wall of the recess 18 of the pedestal 12 are inserted into the rectangular insertion hole 15 of the cover 4 together with both locking pieces 14 of the base plate 3.
The protective covers 13 are located on both sides of the long sides of the cover 4 and are fitted into the insertion holes 15 of the cover 4 to close the insertion holes 15.
20 in FIG. 3 is the insertion hole 27 on the top surface of the body 11.
This is a locking spring that locks the electric wire inserted into the body 11 and brings it into electrical contact with the terminal board 6.
Fixation to a ceiling surface, wall surface, etc. is performed by fixing the base plate 3.

On the other hand, the plug 2 has a protrusion 21 at the center of its upper surface, and is originally intended for use in wiring ducts.A pair of plug blades 23,
23 elastically protrude in opposite directions to both sides, and below each plug blade 23, a pair of protrusions 22 are formed integrally with the protrusion 21 and similarly protrude. And both projecting pieces 22, 22 are cover 4
It has a rectangular shape that can be passed through the insertion hole 15 of.
Further, on the upper surface of the plug 2, there is a stepped portion 2 that restricts the direction of rotation of the plug 2 by coming into contact with the protrusion 17 of the cover 4.
4, and an engaging protrusion 25 disposed at one end of the upper surface and elastically biased upward.

When connecting the plug 2 to the hook rosette 1, the protrusion 21 of the plug 2, in which both protrusions 22, 22 are rectangular, is connected to the protective cover 1.
3 to the back of the recess 18 and pass through the insertion hole 15 of the cover 4 and the opening of the base plate 3.
At this time, the engaging protrusion 25 of the plug 2 is pressed against the lower surface of the cover 4 and descends. Next, the stepped portion 24
If the plug 2 is rotated 90 degrees in one direction regulated by the protrusions 17 and 17, both protrusions 22 of the protrusion 21,
22 is placed on the locking pieces 14, 14 of the base plate 3 to establish a mechanical connection, and the protrusion 21
The tip edge of each plug blade 23 at the upper end elastically contacts a pair of terminal plates 6 located on the inner wall of the recess 18 of the pedestal 12, respectively, to establish an electrical connection, and at the same time, the engagement of the plug 2 is made. The mating protrusion 25 fits into the groove 16 on the lower surface of the cover 4 by resilient force and locks in the connected state.

When disconnecting the connection, lower the engaging protrusion 25 and open the groove 1.
6 and rotate it 90 degrees in the opposite direction from when it was connected. When the plug 2 is removed, the insertion hole 15 of the cover 4 is automatically closed by the protective cover 13. When rotating the plug 2 during attachment/detachment, the circular protrusion 28 at the center of the bottom surface of the protective cover 13
As shown in FIG. 5, this contact with the upper end surface of the protrusion 21 allows the plug 2 to rotate smoothly.

As described above, the present invention forms a recess with an opening at the lower surface in a hanging rosette arranged on a ceiling surface, etc., to which a plug is detachably attached by rotating the plug from below, and the plug is inserted through the opening surface of the recess. A pair of terminal boards, each with a hole and one end to which a power line from the outside is connected, are arranged facing the inner surface of the recess, and a pair of locking pieces are installed in the recess in a vertical direction different from the terminal boards. Plug blades are provided on both sides of the upper part of the plug, which are arranged opposite to each other on different levels and are inserted into the insertion hole of the hook rosette, and which make contact with the other end of the terminal plate by the rotational movement of the plug to establish an electrical connection. Projecting pieces are formed on both sides of the upper part of the plug at different heights in the vertical direction from the plug blade, and are formed to protrude laterally and lock and mechanically connect the locking piece and the plug by the rotational movement of the plug. form,
A protective cover is disposed within the recess of the hooking rosette so as to be movable up and down and elastically biased downward to close the insertion hole, so that the upper part of the plug can be inserted through the lower surface of the hooking rosette. By inserting the plug into the hole and rotating the plug, the projecting piece locks with the locking piece, and the plug blade contacts the terminal plate, so that the plug is mechanically and electrically connected to the hook rosette. In this way, a plug known for wiring ducts can be connected to a hanging rosette, and a spot lighting fixture can be connected to one.
When you only want to install a light, you can use the wiring duct parts just by using the hook rosette, and it is easy to install.Moreover, this hook allows you to connect and disconnect the plug with one touch. In a rosette, the insertion hole is automatically opened and closed by a protective cover when the plug is attached or removed. In particular, when the plug is not attached to the hooking rosette, the protective cover is elastically biased downward. Since the insertion hole is closed by the plug, it has the effect of preventing dust from entering and exposing the live part. Therefore, there is no possibility that the live parts will be covered by dust infiltration or that electric shocks will occur due to the live parts.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the wiring duct and plug, Figure 2
The figure is a perspective view of one embodiment of the present invention, FIGS. 3 and 4 are sectional views of the same when the same is not connected and when the same is connected, and FIG. 5 is a partial sectional view of the same. 1 is a hooking rosette, 2 is a plug, 6 is a terminal plate, 13 is a protective cover, 14 is a locking piece, 15 is an insertion hole, 18 is a recess, 22 is a protruding piece, and 23 is a plug blade.

Claims (1)

[Claims] 1. A plug is removably attached by rotation from below, and a recess with an open bottom is formed in a hanging rosette placed on a ceiling surface, etc., and the opening surface of the recess is used as an insertion hole, and one end is inserted from the outside. A pair of terminal boards to which the power supply wires are connected are arranged opposite to the inner surface of the recess, and a pair of locking pieces are arranged in the recess to face the terminal boards at different levels in the vertical direction. and on both sides of the upper part of the plug to be inserted into the insertion hole of the hooking rosette, plug blades are formed which protrude laterally and connect with the other end of the terminal plate by the rotational movement of the plug to establish an electrical connection. A protruding piece is formed on both sides of the upper part of the plug at different heights in the vertical direction from the plug blade to mechanically connect the locking piece to the plug by the rotational movement of the plug, A hook connection device characterized in that a protective cover is disposed within the recess and is movable up and down within the recess and resiliently biased downward to close the insertion hole.