JPH0126074Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is a new hanging rosette (ceiling).
and a plug to be connected to this hanging rosette, and its purpose is to create a hanging rosette that can use plugs conventionally formed for wiring ducts, and to To provide a hooking connector which does not expose a live part of a plug and facilitates rotational attachment of a plug.

The present invention will be explained in detail below based on illustrated embodiments. In the figure, 1 is a hooking rosette, and 2 is a plug.
The base plate 3 is composed of a metal base plate 3, a cover 4 that is placed on the bottom surface of the base plate 3, and a terminal block 5 that is fixed on the base plate 3. The base plate 3 is fixed to a ceiling surface or the like.
A pair of locking pieces 14, 14 protrude from opposite sides of the opening provided in the center of the opening. The cover 4 fixed to the base plate 3 with screws 29 is the first
As is clear from the figure, there is a groove 16 on the central lower surface,
Furthermore, a rectangular insertion hole 15 is provided in the center of the groove 16, and this groove 16 is provided on one side of the groove 16.
It is provided with a protrusion 17 along. Further, the terminal block 5 has a body 11 whose bottom surface is open, a pedestal 12 disposed in the opening of the bottom surface of the body 11, and a recess 18 provided in the bottom surface of the pedestal 12 so as to be vertically movable. A rectangular protective cover 13 is configured such that a portion of each of the pair of terminal plates 6 disposed inside the body 11 is exposed on the opposing inner wall of the recess 18 of the pedestal 12, and the pedestal A spring 19 is disposed between the protective cover 12 and the protective cover 13, and resiliently biases the protective cover 13 having a circular protrusion 28 at the center of the lower surface downward. The upper surface of the circular protrusion 28 serves as a spring receiving portion. When the terminal block 5 is fixed on the top surface of the base plate 3, the cradle 12
A pair of terminal plates 6 exposed on the inner wall of the recess 18 are attached to the cover 4 together with both locking pieces 14 of the base plate 3.
located on both sides of the long side of the rectangular insertion hole 15,
The protective cover 13 fits into the insertion hole 15 of the cover 4 and closes the insertion hole 15. 2 in Figures 2 and 3
0 is inserted into the body 11 from the insertion hole 27 on the top surface of the body 11.
This is a locking spring that locks the electric wire inserted therein and brings it into electrical contact with the terminal board 6.

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, and from the upper end of the protrusion 21 a pair of plug blades 23, 2
3 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. Both projecting pieces 22, 22 have a rectangular shape that can be passed through the insertion hole 15 of the cover 4. Further, on the upper surface of the plug 2, there is a stepped portion 24 that restricts the direction of rotation of the plug 2 by contacting with the protrusion 17 of the cover 4.
and an engaging protrusion 25 disposed at one end of the upper surface and elastically biased upward.

Therefore, when connecting the plug 2 to the hook rosette 1, the protrusion 21 of the plug 2, in which both protrusions 22, 22 have a rectangular shape, is connected to the protective cover 1.
3 to the inner part of the recess 18 and pass it through the insertion hole 15 of the cover 4 and the opening of the base plate 3.
At this time, the engagement protrusion 25 of the plug 2 is pressed against the lower surface of the cover 4 and lowered. 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 makes elastic contact with 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 engagement protrusion 25 and remove the groove 1.
6 and rotate it 90 degrees in the opposite direction to 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 2 at the center of the bottom surface of the protective cover 13
8 is in sliding contact with the upper end surface of the protrusion 21 as shown in FIG. 4, making the rotation of the plug 2 smooth and preventing contact between the plug blade 23 and the protective cover 13, thereby preventing the protective cover 13 from being scratched. To prevent.

As mentioned above, the present invention forms a recess with an opening on the lower surface in a hanging rosette, which is installed on a ceiling surface, etc., to which a plug is detachably attached by rotating the plug from below, and 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. On both sides of the protrusion formed on the top of the plug, which is arranged oppositely on different levels and is inserted into the insertion hole of the above-mentioned hanging rosette,
Plug blades are formed to protrude laterally to make electrical connection by contacting the other end of the terminal plate with the rotational movement of the plug, and are locked with the locking piece by the rotational movement of the plug to form a mechanical connection. The protruding pieces that perform
A protective cover that is movable up and down in the recess of the hooking rosette and resiliently biased downward to close the insertion hole is disposed in the recess, and is placed above the protrusion of the plug at the center of the lower surface of the protective cover. Since the plug has a circular protrusion that can freely slide into contact with the end surface, by inserting the protrusion on the top of the plug into the insertion hole on the bottom of the hook rosette and rotating the plug, the protrusion piece can be connected to the locking piece. At the same time, the plug blade is connected to the terminal board, mechanically and electrically connecting the plug to the hook rosette.In this way, the plug used for wiring ducts can be hooked. The plug can be connected to a rosette, and the plug has a protrusion on its upper part with a blade, and the insertion hole in the hanging rosette not only allows the blade to pass through, but also has a protrusion. Although the insertion hole is large enough to pass through the entire part, when the plug is not connected, the insertion hole is closed with a protective cover to prevent the terminal board, which is a live part, from being exposed, and to prevent electric shock due to exposure. It is possible. In addition, since this protective cover is elastically biased downward and can move up and down, it automatically opens and closes the insertion hole according to the attachment and detachment of the plug. Since the shaped protrusion is provided, the presence of the protective cover does not impede the rotation of the plug, and conversely, the circular protrusion acts as a rotational fulcrum to ensure smooth rotation of the plug. Furthermore, when the circular protrusion comes into sliding contact with the upper end surface of the protrusion of the plug, the plug blades protruding from both sides of the upper end of the protrusion contact the protective cover and protect the plug. This has the effect of not damaging the cover.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIGS. 2 and 3 are sectional views of the same when the same is disconnected and connected, and FIG. 4 is a partial sectional view of the same. 1 is a hook rosette, 2 is a plug, 5 is a terminal block, 6 is a terminal board, 1
3 is a protective cover, 18 is a recess, 21 is a protrusion, 22
23 indicates a protruding piece, 23 indicates a plug blade, and 28 indicates a circular protrusion.

Claims (1)

[Scope of utility model registration request] 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 connected to a hook from the outside. A pair of terminal boards to which the power line is connected are arranged to face each other on 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. , on both sides of the protrusion formed on the top of the plug to be inserted into the insertion hole of the hook rosette, plug blades are provided on both sides of the terminal plate to make electrical connection by contacting with the other end of the terminal plate through rotational movement of the plug. A protruding piece is formed protruding from the protruding part, and the protruding piece is mechanically connected to the above-mentioned locking piece by the rotational movement of the plug. a protective cover that is movable up and down within the recess and resiliently biased downward to close the insertion hole;
A hook connection device comprising a circular protrusion that can be slidably contacted with the upper end surface of the protrusion of the plug at the center of the lower surface of the protective cover.