JPH0223986B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a wiring duct connection device.

[Background technology]

Conventional examples are shown in FIGS. 1 to 6. That is, 1 and 1' are wiring ducts, and 2 is a connector. As shown in Fig. 3, one end of the connector 2 is inserted into one wiring duct 1', and the set screw 3 is tightened.
The other wiring duct 1 is inserted into the other end of the connector 2, and the set screw 3' is tightened to connect the wiring ducts 1 and 1'. The connector 2 has plug blades 4, 4', 5, on both sides.
5', when inserted into the wiring ducts 1, 1', the corresponding conductors 6, 7 of the wiring ducts 1, 1' are electrically connected. Furthermore, in order to ground according to the regulations (class 3 grounding work), the duct cores 1a and 1'a are electrically connected to each other via the connecting fitting 8 by tightening the set screws 3 and 3' as shown in Fig. 6. ing.

However, this method of grounding has the disadvantage that it cannot be applied to a duct in which a conductor is disposed deep inside the wiring duct.

[Purpose of the invention]

Therefore, an object of the present invention is to provide a wiring duct connecting device that can be applied to devices having conductors deep inside and can be grounded.

[Disclosure of the invention]

This invention is characterized in that an exposed portion of the core is provided at the edge of the plug insertion opening of a pair of wiring ducts, and a connector is sandwiched between the edges to electrically and mechanically connect the exposed portions to each other. There is. Therefore, it can be applied not only to a wiring duct like the conventional example but also to a wiring duct having a conductor deep inside, and it is possible to connect the ground through the core of another wiring duct.

An embodiment of this invention is shown in FIGS. 7 to 15. That is, 9, 9' are wiring ducts, 10,
10' is a connector, and the wiring ducts 9, 9' have an insulator 12 coated on the surface of the core 11, a protrusion 15 provided on the edge 14 of the plug insertion opening 13, and the protruding surface covered with an insulator. A high capacity conductor support part 16 is exposed from the insulator 12 and is integrally formed on the inner surface and the back side of the inner back side, and the conductor support parts 16 are integrally connected with each other by reinforcing ribs 17. A cylindrical conductor 18 is inserted into each conductor support portion 16 .
Furthermore, a pair of conductor support parts 19 for low capacitance are provided on the inner surface of the wiring ducts 9, 9' on the opening 13 side,
These plate-shaped conductors 20 are attached. When power is supplied from these wiring ducts 9, 9', a plug (not shown) is inserted into the plug insertion opening and latched to the edge 14, and the plug blade is connected to the conductor 18, 20.
so that it comes into contact with the

The high capacity connector 10 is composed of three connection pins, and is connected by inserting both ends of the pin 10 into each end of the cylindrical conductor 18.

The low capacity connector 10' has plug blades 23 sandwiched between insulating plates 21 and 22, protruding from both sides, a base 24 attached to the lower surface of the insulating plate 22 with fixing screws 25, and further attached to the lower part of the base 24. Connection fitting 26
Attach with set screw 27. base 24
has contact pieces 29 on both sides via step portions 28,
A lower surface protrusion 31 extending in the width direction is formed at the position of the set screw attachment hole 30 of the contact piece 29. The ends of the connector 10' are inserted into the ends of the wiring ducts 9, 9', respectively. At this time,
By setting the dimensional relationship, the plug blade 23 comes into contact with the plate-shaped conductor 20, and the corresponding conductors 20 of the wiring ducts 9, 9' are electrically connected to each other. Furthermore, since the contact piece 29 of the base 24 is located on the upper surface of the edge 14 of the wiring ducts 9, 9', and the connecting metal fitting 26 is located on the lower surface, by tightening the set screw 27, the base 24 and the connecting metal fitting 26 are connected to the edge 14 of the wiring ducts 9, 9'. 14 is sandwiched. Furthermore, at this time, the contact piece 29
contacts the protrusions 15 in a crosswise manner and electrically connects the core 11
are connected to each other, and by tightening the set screw 27 at the position of the protrusion 31, the contact piece 29 is elastically deformed as shown in FIG. I try not to get it.

With this configuration, it can be applied to any wiring duct, and moreover, stable ground connection can be made.

〔Effect of the invention〕

As described above, the wiring duct connecting device of the present invention has the advantage that grounding is reliable and can be applied without being limited to the conductor arrangement structure of the wiring duct.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of a wiring duct in a conventional example.
Fig. 2 is a perspective view of the duct connector, Fig. 3 is an exploded perspective view of the connection process, Fig. 4 is a perspective view of the connected state, Fig. 5 is a sectional view showing the ground connection, and Fig. 6 7 is an exploded perspective view of the connection process in an embodiment of the present invention, FIG. 8 is a sectional view of the wiring duct, and FIG. 9 is a side view of the end with the connecting pin inserted. , FIG. 10 is an exploded perspective view of the connector,
Fig. 11 is a perspective view of the connector, Fig. 12 is a sectional view of the connected state, Fig. 13 is a sectional view showing the ground connection part, Fig. 14 is a partially enlarged sectional view of Fig. 12,
FIG. 5 is a sectional view of the set screw in a tightened state. 9,9'...Wiring duct, 10'...Connector, 1
1...Core, 13...Plug insertion opening, 14
... Edge, 15 ... Projection (exposed part), 20 ... Conductor, 23 ... Bung blade, 24 ... Base (conductor part),
26... Connection fitting, 27... Set screw.

Claims (1)

[Claims] 1 A pair of wiring ducts in which the surface of the core is insulated and a conductor is arranged inside, and an exposed portion of the core is provided at the edge of the plug insertion opening, and a A wiring duct connecting device comprising: a plug blade that connects each other; and a connector having a conductor portion that electrically connects the exposed portions of the core by being sandwiched between the edges.