JPH066929A - Duct branching device - Google Patents

Abstract

PURPOSE:To facilitate the attachment of a hook to a duct and the removal of the hook from the duct by equipping this device with a hook, which elastically hooks on the margin of the opening of a plug-in hole, and a release member, which releases the hooking of this hook. CONSTITUTION:When a plug-in head 15 is inserted into the plug-in hole 3 of a duct 1 and a branching device is pushed up, the tilt part 28 of a hook 25 abuts on the margin of the plug-in hole 3, whereby it receives force, and the hook 25 shifts inward, resisting the elasticity of a spring. Furthermore, when the branching device 2 goes up, the abutment between the tilt part 28 of the hook 25 and the plug-in hole 3 is released, and the spring returns, and the groove 29 of the hook 25 gets in the margin of the plug-in hole 3 and is locked elastically. To remove the branching device 2, the hook 25 shifts inward by pushing the releasing member 27, whereby the lock condition is released. Hereby, the attachment of the hook 25 to the duct 1 and the removal of the hook 25 from the duct 1 can be performed easily.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a duct branching device.

[0002]

2. Description of the Related Art In FIG. 9, 50 is a bus duct and 51 is a bus duct.
Is the branching device. The branching device 51 includes a plug head 52, a fixture 53, and the like. This branching device 51
When installed, the plug-in hole 5 of the bus duct 50
The plug head 52 was inserted into 4 to make it conductive, and the fixing metal fitting 53 was hooked on the side edge of the bus duct 50 and fixed with the fixing screw 55 (FIG. 10).

[0003]

However, in the conventional duct branching device, there is a problem in that it is necessary to tighten the fixing screw 55 when mounting it on the bus duct 50 as described above, which is troublesome. Accordingly, it is an object of the present invention to provide a duct branching device that can be easily installed.

[0004]

A duct branching device of the present invention is a duct branching device in which a plug head is inserted into a plug-in hole of a duct main body so as to be able to conduct electricity. It is characterized in that an engagement / disengagement mechanism including a hook that is elastically locked and a release member that unlocks the hook is provided.

[0005]

According to the structure of the present invention, since the hook for elastically locking is provided at the peripheral edge of the opening of the plug-in hole, it can be easily attached to the duct. In this case, since the plug-in hole into which the plug head is inserted is used, it is not necessary to perform processing for elastic locking on the duct side. Further, since the hook can be unlocked by the unlocking member, it can be easily removed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A duct branching device according to an embodiment of the present invention will be described with reference to FIGS. 1 is a bus duct, 2
Is the branching device. The duct body 1a forming the outer shell of the bus duct 1 is provided with a plug-in hole 3 so that it can be connected to the conductor 4 inside.

The branching device 2 is composed of a terminal block 5, an engaging / disengaging mechanism 6, a body 7 and the like. As shown in FIG. 6, the terminal block 5 includes a frame 11 having plate pieces 8 and 8 having recesses 21 ...
, And the terminal block 14 provided with the clips 12 and the terminal screws 13 on the frame 11 in a state of being positioned by the plate pieces 8 and 8, and fitted into the opening 20 so as to insulate the respective clips 12 ... And a plug head 15 supported by the terminal block 14. A ground contact terminal 22 is attached to the frame 11 with a rivet 23. 34
Is the ground screw. Further, as shown in FIG. 7, the body 7 is attached to the lower side of the frame 11 with screws 16 so as to surround the terminal block 14. Openings 17, 17 are provided on the facing surface of the body 7 corresponding to the plate piece 8, and a concave support portion 18 is provided on the inner surface below the opening 17. A cover 19 is attached to the lower side of the body 7 with screws 24 so as to cover the terminal screws 13.

The engaging / disengaging mechanism 6 includes a hook 25, a spring 26, and a releasing member 27. The hook 25 has an inclined portion 28 and a groove portion 29, and a pair of hooks 25, 25 are connected by a plate 30. The spring 26 is substantially U-shaped with its upper end folded back, and the release member 27 has locking portions 31, 31 at both ends. In the mounted state, the hook 25 is inserted into the recess 21 to accommodate the peripheral edge of the recess 21 in the groove 29, and the lower end of the plate 30 is supported by the support 18. Then, the spring 26 is interposed between the plate 30 and the side surface of the plug head 15, and the spring 26
Is hooked on the upper end of the plate 30 or the like. Further, the release member 27 is fitted into the opening 17 of the body 7 so that the plate 30 can be pressed, and the locking portion 31 is locked to the peripheral edge of the opening 17.

Next, the operation of mounting the branching device 2 will be described. As shown in FIG. 7A, the duct body 1a
Insert the plug head 15 into the plug-in hole 3 of
The conductor 4 is sandwiched between the clips 12. When the branching device 2 is further pushed up in this state, as shown in FIG. 7B, the inclined portion 28 of the hook 25 comes into contact with the peripheral portion of the plug-in hole 3 and receives a force thereby, so that the hook 25 receives the spring 26. It moves inward against the elasticity of (Fig. 7 (c)). When the branching device 2 is further raised, as shown in FIG. 7D, the contact state between the inclined portion 28 and the plug-in hole 3 is released, the spring 26 is restored, and the groove 29 is formed in the plug-in hole 3. It enters the periphery and is elastically locked. In addition, the branching device 2
To remove the hook, as shown in FIG. 8, the release member 27 is pushed to move the hook 25 inward and the locked state is released.

In this embodiment, the hook 25 of the engagement / disengagement mechanism 6 is used.
Since the sloping portion 28 is provided, the hook 25 is automatically locked to the peripheral portion of the plug-in hole 3 only by pushing up the branching device 2, and the branching device 2 can be attached to the bus duct 1. The spring 26 may be a coil spring or the like, and the release member 27 may be a lever type instead of a button type.

[0011]

According to the duct branching device of the present invention,
Since a hook for elastically locking is provided on the peripheral edge of the opening of the plug-in hole, it can be easily attached to the duct. In this case, since the plug-in hole into which the plug head is inserted is used, it is not necessary to perform processing for elastic locking on the duct side. Further, since the hook can be unlocked by the unlocking member, it can be easily removed.

[Brief description of drawings]

FIG. 1 is a perspective view of a duct branching device according to an embodiment of the present invention.

FIG. 2 is a partially sectional front view of the branching device.

FIG. 3 is a front view of a branching device.

FIG. 4 is a plan view of FIG.

FIG. 5 is an exploded perspective view of a branching device.

FIG. 6 is an exploded perspective view of a terminal block.

FIG. 7 is a diagram illustrating a mounting operation of the branching device.

FIG. 8 is a diagram for explaining a detaching operation of the branching device.

FIG. 9 is a perspective view of a conventional branching device before mounting.

FIG. 10 is a perspective view after a conventional branching device is attached.

[Explanation of symbols]

 1 duct 1a duct main body 2 branching device 3 plug-in hole 6 engaging / disengaging mechanism 15 plug head 25 hook 27 releasing member

Claims (1)

[Claims] 1. A branching device for a duct in which a plug head is inserted into a plug-in hole of a duct main body so as to be electrically conductive, wherein a hook elastically locked to an opening peripheral edge portion of the plug-in hole and locking of the hook. A branching device for a duct, comprising an engaging / disengaging mechanism including a releasing member for releasing.