JPH0628900Y2 - Junction connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a junction connector.

[Conventional technology]

FIG. 5 shows an example of a junction box used for entering the floor duct 6 ... And branching the entered electric wire. The box is an octagonal box body, and includes a lower plate (bottom plate) 1 and an upper plate 2. A plurality of spacers 3 are provided on the lower plate 1 so as to be located on the outer periphery, and the upper plate 2 is mounted on the spacers 3 by four fasteners 4. There is. A floor marker 5 is provided at the center of the upper plate 2. In this junction box, each end of a plurality of floor ducts 6 ... Is connected through an opening in its peripheral portion so as to be inserted, and a conduit 7 is connected to a corner. It is supposed to be done. The conduit tube 7 is connected by a junction connector 8. The connector 8 has a connecting plate 9
And a pipe 10 which is a pipe connecting portion, and can be fastened by the fasteners 4 using spacers 3 arranged at the corners.
The electric wire tube 7 can be attached by.

[Problems to be solved by the device]

By the way, as shown in FIGS. 6 to 8, the junction connector 8 is provided with the grooves 3 of the spacers 3 and 3 arranged so as to face the corners of the junction box.
The upper plate 2 is adapted to be inserted into the a and 3a from above, and is mounted on the spacers 3 and 3 from above.
Thus, the stopper 4 is tightened to prevent the stopper 4 from slipping upward and to be fixed. As a result, in order to attach the connector 8 to the junction box, the fastener 4 must be removed from the assembled state of the junction box.
It is required to remove all of the ... and remove the upper plate 2 and then screw all the fasteners 4 ... again, which is a troublesome work.
It was inferior in workability.

In view of the above-mentioned circumstances, an object of the present invention is to make it easy to attach the junction box.

[Means for Solving the Problems]

In order to solve the above-mentioned problems, a junction connector according to the present invention comprises a lower plate having a plurality of spacers protruding upward and an upper plate secured to the upper end of the spacer by a fastener. Installed as a part to connect the electric wire connection pipe to the peripheral part of the junction box where the floor duct is connected in an insertion shape through the opening opened between the spacers of the section, different from the floor duct insertion part A junction connector provided with a connecting plate portion having a pipe connecting portion to which the electric wire tube is connected, and an attaching portion protruding from an upper end of the connecting plate portion toward the inside of the junction box, the attaching portion being the The upper plate is mounted on the upper plate so that the upper plate and the upper plate are fastened together from above.

[Action]

A connection plate portion having a pipe connection portion to which the electric conduit is connected,
And a mounting portion projecting from the upper end of the connecting plate portion toward the inside of the junction box, and the mounting portion is so fastened together from above by the fastener that the mounting portion rides on the upper plate. By attaching and detaching one fastener, the junction box can be attached without changing the other fasteners.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to the drawings showing an embodiment thereof.

1 to 3 show an embodiment of a junction connector according to the present invention. Same connector 3
The junction box to which 0 is attached has a lower plate 20 as shown in FIGS. 1 and 2, and a plurality of spacers are arranged from the upper surface of the outer periphery of the lower plate 20. Of these spacers, the ones 21 and 21 at the four corners of the lower plate 20 are circumferentially opposed to each other and are integrated by the upper coupling portion 22 to form a gate-shaped spacer 23. The spacer 23 has a through hole 2
4 is open, and a locking groove 25 is formed on the outer side of the spacer 23 so as to open outward. A locking hole 26 is provided between the grooves 25 of the lower plate 20 so that the center thereof is oriented vertically, and a screw hole 27 is formed in the center of the upper surface of the coupling portion 22. A through hole 28a is formed in the upper plate 28 at a position corresponding to the screw hole 27, and a corner portion 28b of the upper plate 28 is attached above the locking groove 25 so as not to face each other. The junction connector 30 is
It has a vertically oriented connecting plate portion 31 and a mounting portion 32 which projects from the upper end of the connecting plate portion 31 so as to be bent at a right angle. A short pipe connecting portion 33 to which an electric wire pipe (not shown) is connected is integrally provided on the connecting plate portion 31 by burring. A screw 34 is formed on the inner circumference of the pipe connecting portion 33. On the back surface of the mounting portion 32, a screw hole 3
The packing 36 for preventing trousers is attached so as to cover the entire surface other than the portion corresponding to 5. For the packing 36, for example, neoprene sponge is used,
The packing 36, which is abutted against the locking groove 25, functions to prevent the entry of fresh concrete through the space between the groove 25 and the junction connector 30. The packing 36 ensures that even if a tensile force acts on the junction connector 30 through the conduit, the compressed margin functions effectively and maintains a sealed state. At the lower end of the connection plate portion 31, a protrusion 37 that fits into the locking opening 26 is projected. The mounting portion 32 is formed in a substantially trapezoidal shape, and a hole 32a through which the stopper 40 is passed is formed in the center portion thereof.

Initially, the junction box is an assembly that does not include the junction connector 30, but the junction connector 30 is attached if necessary. At this time, only the fasteners 40 at the location where the junction connector 30 is attached are removed, and the other fasteners (generally, there are three) are left unchanged. Therefore, the upper plate 28 remains attached. After the fastener 40 is removed, the junction connector 30
And the projection 37 is fitted into the locking opening 26, and the mounting portion 32 is mounted on the upper plate 28, and is set in the junction box. Then, the removed stopper 40 is attached to the hole 32 of the mounting portion 32.
It is tightened by being screwed into the screw hole 27 through a and the through hole 28a of the upper plate 28. That is, the junction connector 30 and the upper plate 28 are fastened together from above. In addition to the above-described embodiment, as shown in FIG. 4, the pipe connecting portion 50 is a separate piece in a hub shape having a screw hole 50a into which a set screw 51 is screwed.
This is caulked in the hole 52a of the connection plate portion 52, or
It may be fixed by a method such as TIG welding.

As described above, the junction connector according to the present invention comprises a connecting plate portion having a pipe connecting portion to which a conduit is connected, and an attaching portion protruding from the upper end of the connecting plate portion toward the inside of the junction box, Since the mounting portion is mounted on the upper plate and is fastened together from above by the fastener, if one fastener is attached or detached, the other fasteners are left as they are. Even if there is, it can be installed in the junction box.

[Effect of device]

Since the junction connector according to the present invention is configured as described above, the work of attaching it to the junction box can be easily performed.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a junction connector according to the present invention when it is attached to a junction box, FIG. 2 is an exploded perspective view showing the state at the time of attachment, and FIG. 3 shows the junction connector. , (A) is its front view, (b) is its plan view,
(c) is a half sectional view of the same figure (a), FIG. 4 shows another embodiment of the junction connector, and (a) is its front view,
The figure (b) is a plan view thereof, the figure (c) is a longitudinal sectional view of the figure (a),
FIG. 5 is a perspective view showing a state in which a conventional junction connector is attached to a junction box, FIG. 6 is an exploded perspective view of an essential part thereof, FIG. 7 is a plan view showing the same junction connector, and FIG. 8 is a front view thereof. Is. 20 ... Lower plate, 21, 23 ... Spacer, 28 ... Upper plate, 30 ... Junction connector, 31, 52 ...
Connection plate part, 33, 50 ... Pipe connection part, 40 ... Stopper

Claims (1)

[Scope of utility model registration request] 1. A lower plate having a plurality of spacers projecting upward and an upper plate secured to the upper end of the spacer by a fastener, and passing through openings formed between the spacers in the peripheral portion. A junction connector, which is attached as a component for connecting an electric wire connecting pipe to a peripheral portion of a junction box in which a floor duct is connected in an insertion shape, different from a floor duct inserting portion, A connecting plate part having a pipe connecting part connected to each other, and a mounting part projecting from the upper end of the connecting plate part toward the inside of the junction box. A junction connector characterized in that it can be fastened together from above with attachments.