JPH11307213A - Plug for wiring duct and electric appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure safety even when a plug for a wiring duct is applied to a large electric appliance. SOLUTION: This plug has a handle 6, a first mounting part 8 and a second mounting part 9 which are mounted in a wiring duct by being inserted into the wiring duct and rotated as the handle 6 is operated, and an electrical connection 13 provided at the first mounting part 8 and brought into contact with the conductor of the wiring duct by the rotation of the first mounting part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plug for a wiring duct and an electric device such as a lighting device.

[0002]

2. Description of the Related Art A first conventional example (for example, Japanese Patent Laid-Open No. 50-53895)
No.) has two circuits for electrical connection with the wiring duct, and operates two electrical connections in conjunction with one operating tool. Second conventional example (for example, Japanese Patent Laid-Open No. 64-811)
No. 80) has a pair of mounting portions and a pair of blades for electrical connection, but one operating tool does not operate the pair of mounting portions in conjunction, but only one blade for electrical connection. Is a wiring duct plug that operates in conjunction.

[0003]

The first conventional example is simply 2
The two electrical connections only work together, only the ones that should originally be mounted separately are integrated. In the second conventional example, although there are two attachment portions, the operation is performed by operating each operation tool. For this reason, when a large external force is applied to the wiring duct plug, for example, safety cannot be ensured in a case where the plug is used for a large device that is long in parallel with the wiring duct or wide in the width direction of the wiring duct. There were challenges.

Accordingly, an object of the present invention is to provide a plug for a wiring duct and an electric appliance which can ensure safety even when applied to a large-sized appliance.

[0005]

A wiring duct plug according to claim 1 is attached to said wiring duct by being inserted into said wiring duct and rotating in conjunction with operation of said operating tool. A first mounting portion and a second mounting portion;
An electrical connection portion provided on the first mounting portion and coming into contact with a conductor of the wiring duct by the rotation of the first mounting portion.

According to the plug for a wiring duct of the present invention, since the first mounting portion and the second mounting portion are interlocked with the operation of the operating tool, the mounting strength to the wiring duct can be sufficiently secured. . Therefore, when a plurality of wiring duct plugs are used in an electric appliance, even a large appliance can have sufficient mounting strength and ensure safety. According to a second aspect of the present invention, in the wiring duct plug according to the first aspect, the wiring duct plug holds the first mounting portion and the second mounting portion.
It has a plug main body having a side plate having an attached portion, and has a plug attaching body for attaching the attached portion.

According to the wiring duct plug of the second aspect, in addition to the same effects as those of the first aspect, since the mounting portion is provided on the side plate of the plug main body, the plug main body is mounted laterally on the plug mounting body. It is possible to reduce the thickness of the device, and to prevent inclination during mounting. Also, when the mounting part is to be attached to the plug mounting body with a screw hole as a screw hole, it can be supported by the shearing force of the screw, so sufficient strength for mounting the equipment can be ensured, and the tool for assembling tools is unified. Cheap.

According to a third aspect of the present invention, in the plug for a wiring duct according to the second aspect, the plug mounting body is a conductor, and the first mounting portion is configured to mount the plug body to the plug mounting body. It has a ground terminal for conducting the ground of the wiring duct and the plug mounting body. According to the wiring duct plug according to the third aspect, in addition to the same effect as the second aspect, the grounding of the plug mounting body can be taken without a separate step, and the time required for assembling the tool during the plug mounting operation can be reduced. At the same time, materials such as electric wires can be reduced, work errors and process capability differences can be eliminated, and the reliability of earth connection work can be maintained.

An electric appliance according to a fourth aspect includes an appliance main body,
A pair of plugs each having an operating tool at both ends in a direction along the wiring duct of the appliance body, and having a mounting portion which is inserted into the wiring duct and mounted by being rotated in conjunction with the operation of the operating tool. At least one of the plugs has an electrical connection portion that is inserted into the wiring duct and rotates in conjunction with the operation portion to contact a conductor of the wiring duct.

[0010] According to the electric appliance of the present invention, even if one plug is attached to the wiring duct, the appliance main body does not fall even if the user releases his / her hand or loosens the force supporting the appliance main body. The instrument main body is not damaged, and it is possible to maintain the strength that can be reused, so that safety can be achieved. In addition, by operating the operating tools at both ends of the instrument body, it is possible to easily attach / detach to / from the wiring duct without attaching / detaching parts of the instrument body, so that the attaching / detaching operation is easy.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to FIGS. That is, this electric appliance is applied to a lighting appliance, and has an appliance main body 1 and a pair of wiring duct plugs 2 and 3. Wiring duct 4
Is attached to the lower surface of the ceiling 5 as shown in FIG. For example, as shown in FIG. 3, a conductive groove-shaped duct body 46 also serving as a ground,
6 is composed of an insulator 47 covering the entire surface and a pair of conductors 10 disposed on the inner side surface of the insulator 47.
11 is an opening of the wiring duct 4, and 12 is a mounting groove.

The apparatus main body 1 has, for example, a plurality of straight tube fluorescent lamps long in the direction along the wiring duct 4 arranged in parallel. As shown in FIGS. 4 and 5, the pair of wiring duct plugs 2, 3 are provided on the tool body 1, and operating tools 6, 7 are provided at both ends of the tool body 1 in the direction along the wire duct 4.
And a first mounting portion 8 and a second mounting portion 9 that are inserted into the wiring duct 4 and are mounted on the wiring duct 4 by rotating in conjunction with the operation of the operating tools 6 and 7. At least one of the wiring duct plugs 2, 3, that is, in this embodiment, the wiring duct plug 2 is inserted into the wiring duct 4 and rotates in conjunction with the operation tool 6, thereby causing the conductor of the wiring duct 4 to rotate. Electrical connection 1 contacting 10
3

That is, the structure of the wiring duct plug 2 is such that the operation tool 6 is inserted into the wiring duct 4 and rotates in conjunction with the operation of the operation tool 6 to be mounted on the wiring duct 4. It comprises a portion 8 and a second mounting portion 9, and an electrical connection portion 13 provided on the first mounting portion 8 and coming into contact with the conductor 10 of the wiring duct 4 by rotation of the first mounting portion 8. .

The wiring duct plug 2 of the embodiment holds the first mounting portion 8 and the second mounting portion 9, and includes a plug body 27 having a side plate 25 having a mounting portion 26. A plug mounting body 28 having a mounting portion 26
Having. Specifically, the plug main body 27 is a pair of side plates 25.
And a metal conductor composed of a bottom plate 30 and a substantially U-shaped bend. A cover 45 is provided at one end of the side plate 25 by providing a gap 45 between the bottom plate 30 and the operation tool 6. doing. The attached portion 26 is, for example, a screw hole. As shown in FIG. 6, the plug mounting body 28 is made of a metal conductive plate, has a substantially U-shape with flanges on both sides, has a size that can accommodate the plug body 27, and matches the mounting portion 26 of the side plate 25. A screw insertion hole 33 is formed at the position, and a screw 34 as a connecting tool is passed through the screw insertion hole 33 and screwed into the attached portion 26 to fix the plug main body 27 to the plug attachment body 28.

The internal structure of the wiring duct plug 2 is as follows.
Through holes 35 and 36 formed in the bottom plate 30 of the plug body 15
A pair of insulators 16 and 17 rotatably penetrating through the gears, gears 18 and 19 provided on the outer periphery of the insulators 16 and 17 and meshing with each other, and the operating tool 6 provided on the gear 18
It consists of: The insulator 16 has a first attachment portion 8, and the insulator 17 has a second attachment portion 9, and the insulator 17 is located inside the appliance body 1 with respect to the insulator 16. The insulator 16 has a through hole 21 for mounting a ground terminal at the center of rotation, and is parallel to the through hole 21 with the through hole 21 interposed therebetween, and has an upper end above the first mounting portion 8 in the first direction. A conductor insertion hole 22 opened in the same direction as the extending direction of the mounting portion 8 is formed. Along with the conductor insertion hole 22, approximately L
An electric connection portion 13 using a letter-shaped contact piece is built in, a tip 13a of the electric connection portion 13 projects outward in parallel with the first mounting portion 8, and a lead wire 40 is connected to the other end.

The plug 3 for the wiring duct of the embodiment is different from the plug 6 for the operating tool 6 only in that the contact piece 13 of the plug 2 for the wiring duct is not provided and the ground terminal 41 is provided in the through hole 21. Apart from having the same configuration, other structures are the same. That is, the ground terminal 41 of the wiring duct plug 3
The first mounting portion 8 connects the plug main body 27 to the plug mounting body 2.
8, the ground of the wiring duct 4 is electrically connected to the plug mounting body 28. As shown in FIG. 5, when the upper end 41a and the lower end 41b of the ground terminal 41 protrude outward, respectively, and the plug body 27 is mounted on the plug mounting body 28 with the screw 34, the bottom plate 28a of the plug mounting body 28 The lower end 41b is pressed and electrically connected. Also, as for the attachment to the instrument body 1, the insulator 16 is located at the end of the instrument body 1 and the insulator 17 is located inside the insulator 16 as in the first embodiment.

The connection to the wiring duct 4 will be described.
The appliance body 1 is brought closer to the wiring duct 4, and for example, the plug 2 for the wiring duct is first inserted into the wiring duct 4. At this time, the first attachment portion 8, the second attachment portion 9, and the distal end 13a of the electrical connection portion 13 can be inserted if they are parallel to the longitudinal direction of the wiring duct. When the operating tool 6 is rotated, the first mounting portion 8 and the second mounting portion 9 are rotated by 90 degrees and locked in the mounting groove portions 12, so that the wiring duct plug 2 is mounted. At the same time, the tip 13a of the electrical connection portion 13 rotates 90 degrees and contacts the conductor 10.

Next, when the first mounting portion 8 and the second mounting portion 9 of the wiring duct plug 3 are inserted and the operating tool 7 is rotated, the wiring duct 4 is made in the same manner as the wiring duct plug 2.
Attached to At this time, the upper end 41 of the ground terminal 41
a penetrates through the insulator 47 and makes electrical contact with the duct body 46. As a result, the duct body 46 and the plug mounting body 28 are electrically connected via the ground terminal 41, and the ground can be taken.

According to this embodiment, since the first mounting portion 8 and the second mounting portion 9 are interlocked with the operation of the operating tools 6 and 7, the mounting strength to the wiring duct 4 is sufficiently ensured. it can. Therefore, when a plurality of wiring duct plugs 2 and 3 are used in the fixture body 1, even a large fixture can have sufficient mounting strength to ensure safety, and can secure strength against lamp replacement and swing of the fixture. Can also be planned.

Since the mounting portion 26 is provided on the side plate 25 of the plug main body 27, the plug main body 27 is connected to the plug mounting body 28.
Since the device is mounted in the horizontal direction, it is possible to reduce the thickness of the device and to prevent inclination during mounting. Since the mounting portion 26 is mounted as a screw hole on the plug mounting body 28 with the screw 34 as a mounting tool, it can be supported by the shearing force of the screw 34, so that sufficient strength for mounting the device can be secured, and the device assembly can be ensured. Easy to unify tools. For example, in a fixture assembly line for lighting fixtures, there is no line that can rarely manage nuts, but since there is always a driver, torque can be easily set, and fixture assembly tools can be unified. Conventionally, an arm such as a spotlight device is attached to the bottom of the plug with a nut.

The plug mounting body 28 is a conductor, and the first mounting portion 8 is used to connect the ground (the duct main body 8) of the wiring duct 4 and the plug mounting body 28 when the plug main body 27 is mounted on the plug mounting body 28. , The grounding of the plug mounting body 28 can be taken without a separate process, the time required for assembling the equipment during the plug mounting work can be reduced, and the materials such as electric wires can be reduced, resulting in a work error. And the difference in process capability is eliminated, and the reliability of the earth connection work can be maintained. In this regard, in the past, the ground wire was connected with a terminal such as a screw terminal, or the ground terminal was connected or contacted with the nut in the plug, and conduction was achieved by screwing the fixture into the nut and fixing it. there were. In this embodiment, the ground can be easily and reliably taken without any force.

At least one of the plugs 2 and 3 has an electrical connection portion 13 that is inserted into the wiring duct 4 and rotates in conjunction with the operation portions 6 and 7 to contact the conductor 10 of the wiring duct 4. Even if one of the wiring duct plugs 2 is attached to the wiring duct 4, for example, even if the user releases his / her hand or loosens the force for supporting the tool main body 1,
Does not fall, the instrument main body 1 is not damaged, and it is possible to maintain the strength enough to be reused, thereby achieving safety. In addition, by operating the operating tools 6 and 7 at both ends of the appliance body 1, it is possible to easily attach / detach to / from the wiring duct 4 without attaching / detaching the components of the appliance body 1, so that the attaching / detaching operation is easy.

FIG. 7 shows a second embodiment of the present invention. That is, this wiring duct plug has a ground terminal 49 bent in a substantially Z-shape in place of the ground terminal 41 of the first embodiment. In this case, the through-hole 21 for attaching the ground terminal of the first insulator 16 is bent in a substantially Z-shape with a stepped portion 21 a extending in the radial direction of the first insulator 16 in accordance with the shape of the ground terminal 49. The first portion above the stepped portion 21a is the same as in the first embodiment.
The lower side of the stepped portion 21a passing through the center of the insulator 16 is exposed to the peripheral surface of the first insulator 16. When the ground terminal 49 is inserted along the through-hole 21 for mounting the ground terminal, the portion below the stepped portion 21a becomes the first insulator 1
6 is slidably in contact with the inner peripheral surface of the hole 35 that rotatably supports the hole 6. Therefore, the ground terminal 41 is in electrical contact with the conductive plug body 27, and the plug body 27 is electrically connected to the plug mounting body 28 through the conductor screw 34. When the upper end 49a of the ground terminal 49 is attached and comes into contact with the duct main body 46 through the insulator 47, the duct main body 46 of the wiring duct 4 can be electrically connected to the plug mounting body 28, and the ground can be obtained. In this case, even if the operating tool 7 is rotated, the ground terminal 49 is slidably in contact with the plug body 27 and is rotated. Therefore, by fixing the plug mounting body 28 to the wiring duct plug with the screw 34, the plug body 27 is always More ground can be taken.

The other structures, functions and effects are the same as those of the first embodiment. In the present invention, the electrical connection portion 13 may be provided on the wiring duct plug 3 instead of the wiring duct plug 2, or the electrical connection portion 13 may be provided on both. The ground terminal 41 may be provided on at least one of them, and may be provided on both. If the ground terminal 41 is unnecessary, the ground terminal 41 is removed, and the wiring terminal is used only for mechanical mounting. It is possible to make a plug.

In the second embodiment, the electrical connection portion 13 of the first embodiment is omitted, but the insulator 16 is used.
As in the first embodiment, a pair of conductor insertion holes 22 is formed in a direction intersecting the extension direction of the step bending portion 21a with respect to the center of
May be formed. In addition, although the wiring duct plugs of the above-described embodiments use the insulators 16 and 17 in conjunction with the gear as a relay member, a belt or other member may be used as the relay member. Although the operating tools 6 and 7 are operated to rotate, the force of the operating tools is directly transmitted to each of the insulators 16 and 17 by friction or gear by a linear operation such as a push-pull operation to rotate them. May be.

[0026]

According to the wiring duct plug of the first aspect, since the first mounting portion and the second mounting portion are interlocked with the operation of the operating tool, the mounting strength to the wiring duct is sufficiently increased. Can be secured. Therefore, when a plurality of wiring duct plugs are used in an electric appliance, even a large appliance can have sufficient mounting strength and ensure safety.

According to the wiring duct plug according to the second aspect, in addition to the same effect as the first aspect, the mounting portion is provided on the side plate of the plug main body, so that the plug main body is mounted on the plug mounting body in the lateral direction. It is possible to reduce the thickness of the device, and to prevent inclination during mounting. Also, when the mounting part is to be attached to the plug mounting body with a screw hole as a screw hole, it can be supported by the shearing force of the screw, so sufficient strength for mounting the equipment can be ensured, and the tool for assembling tools is unified. Cheap.

According to the plug for wiring duct according to the third aspect, in addition to the same effects as those of the second aspect, the ground for the plug mounting body can be taken without a separate step, and the time required for assembling the appliance at the time of the plug mounting operation is obtained. The number of materials such as electric wires can be reduced, work errors and process capability differences can be eliminated, and the reliability of ground connection work can be maintained. According to the electric appliance of the fourth aspect, the appliance main body does not drop even if one of the plugs is attached to the wiring duct and the appliance main body does not drop even if the hand is released or the force supporting the appliance main body is loosened. Without breaking, it is possible to maintain the strength that can be reused, and safety can be achieved. In addition, by operating the operating tools at both ends of the instrument body, it is possible to easily attach / detach to / from the wiring duct without attaching / detaching parts of the instrument body, so that the attaching / detaching operation is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wiring duct plug according to a first embodiment of the present invention.

FIG. 2 is a side view of a lighting fixture connected to a wiring duct.

FIG. 3 is a sectional view of a wiring duct.

FIG. 4 is a sectional view of a wiring duct plug.

FIG. 5 is a cross-sectional view of a plug for a ground wiring duct.

FIG. 6 is an exploded perspective view showing attachment of a wiring duct plug to a plug attachment body.

FIG. 7 is a cross-sectional view of a wiring duct plug according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Appliance main body 2 Wiring duct plug 3 Wiring duct plug 4 Wiring duct 5 Ceiling 6 Operating tool 7 Operating tool 8 First mounting section 9 Second mounting section 10 Conductor 13 Electrical connection section 25 Side plate 26 Mounting section 27 Plug body 28 Plug mount 41 Earth terminal

Continued on the front page (72) Inventor Masato Toki 1048 Kazuma Kadoma, Kadoma City, Osaka Matsushita Electric Works, Ltd.

Claims (4)

[Claims] A first attachment part and a second attachment part that are inserted into the wiring duct and are attached to the wiring duct by rotating in conjunction with the operation of the operation tool;
A wiring duct plug comprising: an electrical connection portion provided on the first mounting portion and in contact with a conductor of the wiring duct by the rotation of the first mounting portion. 2. A plug mounting body for holding the first mounting portion and the second mounting portion, comprising a plug body having a side plate having a mounting portion, and mounting the mounting portion. The plug for a wiring duct according to claim 1, comprising: 3. The plug mounting body is a conductor, and the first mounting portion conducts between the ground of the wiring duct and the plug mounting body when the plug main body is mounted on the plug mounting body. The plug for a wiring duct according to claim 2, further comprising a ground terminal. 4. An apparatus main body and operating tools provided on the apparatus main body at both ends in a direction along the wiring duct of the apparatus main body. The operating tools are inserted into the wiring duct and interlocked with the operation of the operating tool. A pair of wiring duct plugs having an attachment portion that is attached to the wiring duct by rotating the plug. At least one of the wiring duct plugs is inserted into the wiring duct and rotated in conjunction with the operating tool. An electric appliance having an electrical connection portion that contacts the conductor of the wiring duct by doing so.