JPH09320313A - Wiring component tension stop structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To automatically bend an electric wire to surely stop tension, by fitting a pressing member to a wiring part main body having a drawing part for drawing an electric wire. SOLUTION: A pressing member 7 is temporarily retained by electric wires 45 when the pressing member 7 is inserted between a pair of electric wires 45, then to pass them through an insertion part 13. Next, the pressing member 7 is held by a hand, and the hand is put on a projection 14 to rotate the pressing member 7, to engage the engaging projection 14 with a notch 12. Since a drawing part 8 and the insertion part 13 are slippted in the peripheral direction of the pressing member 7 with each other, the electric wires 45 is automatically bent by about 45 deg.. When the engaging projection 14 of the pressing member 7 is engaged with the notch 12, and a screw 19 is passed through a screw insertion part 15 to be screwed into a screw hole 17, the pressing member 7 is fixed to a wiring part main body 1, resultantly the electric wires 45 are tension- stopped by the pressing member 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension stop structure for a wiring component that requires a tension stop.

[0002]

2. Description of the Related Art Tensioning of wiring parts is generally required when conforming to the Electrical Appliance and Material Control Law and for suspending heavy lighting equipment. FIG. 10 shows a first conventional example. That is, in the tension stopping structure of this wiring component, the electric wire 102 is arranged on the main body 101 provided with the pair of protrusions 100,
Cover 10 having protrusions 103 facing each other between protrusions 100
4 is attached to the main body 101, and the electric wires 102 are alternately pressed against the projections 100 and 103, thereby stopping the tension.

A second conventional example is shown in FIG. That is,
In the tension stopping structure of the wiring component, the electric wire 108 is bent while being fitted into the groove 107 formed by the projections 105 and 106 to stop the tension, and the fitting is closed with a cover (not shown).

[0004]

However, these conventional examples have the drawbacks that the effect of stopping tension is weak and that it is difficult to assemble the wires because it is necessary to bend or bend the wires by hand. Therefore, an object of the present invention is to provide a tension-stopping structure for a wiring component which can enhance the tension-stopping effect and is excellent in assembling.

[0005]

According to another aspect of the present invention, there is provided a wiring component tension stopping structure, which has a wiring component body having a lead-out portion for drawing out an electric wire and an insertion portion for inserting the electric wire pulled out from the drawing portion. The pressing member is attached to the wiring component main body in a state where the drawer portion and the insertion portion are displaced from each other.

According to the tension stopping structure for the wiring component of the first aspect, when the pressing member is attached to the wiring component main body, the electric wire is automatically bent and pressed between the wiring component main body and the pressing member. The tension can be reliably stopped, and there is no need for pre-processing such as bending the cord or pushing it into the groove while bending, making assembly easier. According to a second aspect of the present invention, there is provided a wiring component tension stopping structure according to the first aspect, wherein the wiring component main body is cylindrical and has a notch at an opening edge.
The pressing member is a columnar shape that fits into the wiring component body, and has an engaging projection that engages with the notch on the outer peripheral surface,
There is a mounting portion for mounting to the wiring component main body at the center, and the insertion portion is a recessed groove formed on the outer peripheral surface, and the drawing-out portion and the recessed groove in a state in which the engagement protrusion engages with the notch. Are shifted from each other.

According to the tension stopping structure for the wiring component of the second aspect, in addition to the effect of the first aspect, since the engaging projection is engaged with the notch, the pressing member can be easily positioned, and at this time, the engaging projection of the pressing member. Since the pressing member is turned by holding, it is easy to assemble. Further, by engaging the engaging projection of the pressing member with the notch, the pressing member is lowered in the direction approaching the wiring component body, so that the electric wire can be reliably pressed. Further, since the pressing member has a cylindrical shape, even in the case of a pair of electric wires, the electric wires can be easily inserted between the electric wires at the time of assembly and there is no fear of damaging the electric wires.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. In other words, this wiring component tension stopping structure is applied to a power supply component that also serves as an attachment of a fixture main body of a lighting fixture, and has a wiring component main body 1 and a pressing member 7. The wiring component body 1 has a drawer 8 for drawing out the electric wire 45. In the embodiment, as shown in FIG. 3, the wiring component body 1 is composed of the hook sealing portion 4a and the power feeding portion 6. The hook sealing part 4 a has hook claws 5 hooked on the hook sealing body 4 of the ceiling 3. The hook claw 5 is fixed to the hook sealing portion 4a by a mounting screw 51. Reference numeral 9 denotes a lock release button for retracting the lock claw 10. When the lock release button 9 is pressed to retract the lock claw 10, the hook claw 5 is hooked on the hook ceiling body 4 and the lock release button 9 is released to release the lock claw 10. 10
Is projected and is locked in a recess (not shown) of the hook sealing body 4 to restrict the rotation of the hook sealing body 4, thereby preventing the hook sealing portion 4a from being accidentally detached.

The power feeding portion 6 has a cylindrical shape that hangs from the hook sealing portion 4a. One end of the electric wire 45, which has a hole through the drawer portion 8 is connected to the hook claw 5 by spot welding or the like, The other end of 45 is extended to the outside from the lower end of the power feeding unit 6, and a connector 46 is provided at the tip thereof. Further, a cutout 12 is provided at the opening edge at the lower end of the power feeding portion 6, and a holder engaging projection 11 is provided on the outer peripheral surface. Here, the positional relationship between the notch 12 and the lead-out portion 8 is set to be substantially 90 degrees apart when viewed in the circumferential direction of the power feeding portion 6 as shown in FIG. Further, the screw hole 1 is provided at the center of the lower end of the power feeding unit 6.
7 are formed.

The holder 2 has an inner cylinder 21 having an inverted L-shaped engaging groove (not shown) which engages with the holder engaging projection 11 by being fitted into the power feeding portion 6 and rotated, and the inner cylinder 21. 21, an outer cylinder 18 integrally provided with the inner cylinder 21, and an outer cylinder 18
And a device support member 22 that is movably provided between the two and is urged upward by a spring (not shown). Then, when the inner tube 21 of the holder 2 is fitted to the power feeding portion 6 and the holder engaging projection 11 is engaged with the locking groove with the instrument body 47 positioned on the ceiling 3, the instrument support member 22 is attached to the instrument body 47. The apparatus main body 47 is pushed up and fixed to the ceiling 3 by the abutting spring. Further, the connector 46 is connected to the connector 48 on the receiving side provided on the instrument body 47 to supply power. 49 is a lamp socket and 50 is a ring-shaped lamp.

In the lighting fixture, if the wiring component body 1 and the holder 2 are disengaged from each other, the appliance body 47 is supported by the electric wire 45, and at this time, the electric wire in the wiring component body 1 is supported. A tension stop is necessary to prevent a large force from being applied to the connection part. The holding member 7 has an insertion portion 13 for inserting the electric wire 45 drawn out from the extraction portion 8, and is attached to the wiring component body 1 in a state where the extraction portion 8 and the insertion portion 13 are displaced from each other. In the embodiment, the pressing member 7 has a columnar engagement protrusion 14 that engages with the notch 12 on the outer peripheral surface of the wiring component body 1, and the mounting portion 15 is attached to the wiring component body 1 at the center.
Having. More specifically, the outer diameter of the pressing member 7 and the inner diameter of the power feeding portion 6 of the wiring component body 1 are substantially equal, the insertion portion 13 is formed in the concave groove formed on the outer peripheral surface, and the mounting portion 15 is formed by the screw insertion hole. Then, a recess 16 for concealing the screw head is formed at the end, and a screw 19 is passed through the screw insertion hole and screwed into the screw hole 17 to fix the pressing member 7. Here, the engagement protrusion 1
As shown in FIG. 5B, the positional relationship between 4 and the insertion portion 13 is as follows.
It is an X-shaped arrangement that is not aligned in one diameter direction, and is separated by approximately 45 degrees in the circumferential direction. Further, the drawer portion 8 of the insertion portion 13
As shown in FIG. 7, a curved surface 13a that receives the bending of the electric wire 45 is formed at the side edge so that the electric wire 45 is not damaged.

As shown in FIG. 1, this pressing member 7 is inserted between a pair of electric wires 45, and when the electric wire 45 is inserted through the insertion portion 13, it is temporarily held by the electric wire 45. That is, the electric wire 45 is pulled out from the lead-out portion 8 located inside the inner circumference of the power feeding portion 6 having an inner diameter substantially the same as the outer diameter of the pressing member 7, and the tip end of the electric wire 45 is gathered at one location by the connector 46. Therefore, when the pressing member 13 is inserted between the electric wire 45 between the connector 46 and the drawing portion 8, temporary holding becomes possible. Next, the pressing member 7 is held in hand, and the pressing member 7 is rotated by putting a hand on the protrusion 14 to engage the engaging protrusion 14 with the notch 12. At this time, the positional relationship between the notch 12 and the drawer portion 8 and the engagement protrusion 1
Since the pull-out portion 8 and the insertion portion 13 are displaced from each other in the circumferential direction of the pressing member 7 due to the positional relationship between 4 and the insertion portion 13, FIG.
The electric wire 45 is automatically bent by about 45 degrees as shown in FIG. Then, the engaging projection 14 of the pressing member 7 is cut into the notch 12.
The screw 19 through the screw insertion portion 15
When screwed into 7, the pressing member 7 is fixed to the wiring component body 1. As a result, the tension of the electric wire 45 is stopped by the pressing member 7.

According to this embodiment, the wiring component body 1
When the pressing member 7 is attached to the electric wire 45, the electric wire 45 is automatically bent and pressed between the wiring component body 1 and the pressing member 7, so that the tension can be reliably stopped, and the cord can be bent or bent. Pre-processing such as pushing into the groove is completely unnecessary and assembly becomes easy. Further, since the engaging projection 14 and the notch 12 are engaged with each other, the pressing member 7 can be easily positioned, and at this time, since the engaging projection 14 of the pressing member 7 rotates the pressing member 7, the assembly is easy. Further, by engaging the engaging projection 14 of the pressing member 7 with the notch 12, the pressing member 7 is lowered in the direction of approaching the wiring component body 1, so that the electric wire 45 can be reliably pressed. Further, since the pressing member 7 has a cylindrical shape, even in the case of the pair of electric wires 45, the electric wires 45 can be easily inserted between the electric wires 45 during assembly, and the electric wires 45 are not likely to be damaged.

Further, since the recessed portion 16 is provided as a counterbore for accommodating the screw head at the center of the pressing member 7, the screw head is hidden and there is no risk of damaging the electric wire 45 or the like by the screw head.
Further, as shown in FIG. 7, by forming the edge of the insertion portion 13 of the pressing member 7 on the curved surface 13a, the electric wire 45 is not damaged and the electric wire pressing and bending work can be easily performed at one time. FIG.
The wiring component main body 1 from which the pair of electric wires 45 is drawn out and the pressing member 7 through which the pair of electric wires 45 are inserted face each other.
Around the axis parallel to the electric wire 45, the wiring component body 1
It is fixed on top. In this case, the pressing member may rotate together with the screwing operation when fixing the pressing member, but a rotation positioning means such as a protrusion or a recess may be provided. The fixing means is not limited to screws or the like, and the rotary positioning means is also optional.

FIG. 9 shows various embodiments of the insertion portion 13 of the pressing member 7, FIG. 9A shows a U-shaped notch similar to that of the first embodiment, and FIG. The wall 13b on the side opposite to the moving direction is a flat surface, and the electric wire 45 does not easily come off when the pressing member 13 rotates. Figure (c) shows a recess 13 on the wall 13b.
An example in which c is provided is shown, and FIG. Further, in order to restrict the rotation of the pressing member 7, the engaging protrusion 14 and the notch 1
3 is provided, it may be an engaging portion and an engaged portion for rotation restriction. For example, the engaging protrusion 14 is provided on the wiring component body 1 side, and the groove corresponding to the notch 13 is provided on the pressing member 7. Alternatively, the power supply portion 6 of the wiring component body 1 may be formed into a polygonal tubular shape instead of a cylindrical shape to regulate rotation, or other means may be applied.

[0016]

According to the tension stopping structure for a wiring component according to the first aspect of the present invention, when the pressing member is attached to the wiring component main body, the electric wire is automatically bent and is pressed between the wiring component main body and the pressing member. As a result, the tension can be reliably stopped, and there is no need for any pre-processing such as bending the cord or pushing it into the groove while bending.

According to the tension stopping structure for a wiring component of claim 2, in addition to the effect of claim 1, since the engaging projection and the notch are engaged with each other, the pressing member can be easily positioned, and at this time, the engaging projection of the pressing member is engaged. Since the pressing member is turned by holding, it is easy to assemble. Further, by engaging the engaging projection of the pressing member with the notch, the pressing member is lowered in the direction approaching the wiring component body, so that the electric wire can be reliably pressed. Further, since the pressing member has a cylindrical shape, even in the case of a pair of electric wires, the electric wires can be easily inserted between the electric wires at the time of assembly and there is no fear of damaging the electric wires.

[Brief description of drawings]

FIG. 1 is a perspective view before mounting a holding member according to an embodiment of the present invention.

FIG. 2 is a bottom view showing a state where an electric wire is pressed by a pressing member.

FIG. 3 is a half sectional side view.

FIG. 4 is a partial side view in a state in which it is applied to an electric wire of a lighting fixture.

FIG. 5 is an explanatory diagram showing a positional relationship between a notch and a drawer portion and a positional relationship between an engaging protrusion and an insertion portion.

FIG. 6 is an explanatory view showing a state in which the engaging projection of the pressing member is engaged with the notch.

FIG. 7 is a partial cross-sectional view of a state in which an electric wire is pressed by a pressing member.

FIG. 8 is an explanatory diagram of another embodiment.

FIG. 9 is an explanatory view of various embodiments of the insertion part.

FIG. 10 is a partial cross-sectional view of a first conventional example.

FIG. 11 is a partial cross-sectional view of a second conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wiring component body 7 Holding member 8 Draw-out portion 13 Insertion portion 14 Engagement protrusion 15 Mounting portion 45 Electric wire

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yoshinori Fukushima 1-55 Yoshida Shimojima, Higashi-Osaka City, Osaka Prefecture Asahi National Lighting Co., Ltd. (72) Inventor Ken Imai 1-55 Yoshida Shimojima, Higashi-Osaka City, Osaka Prefecture No. Asahi National Lighting Co., Ltd.

Claims (2)

[Claims] 1. A wiring component body having a lead-out portion for pulling out an electric wire, an insertion portion for inserting the electric wire pulled out from the lead-out portion, and the lead-out portion and the insertion portion being displaced from each other. A tension stopping structure for wiring parts, which includes a pressing member attached to the wiring part body. 2. The wiring component main body is cylindrical and has a notch at an opening edge, and the pressing member is a cylindrical shape that fits into the wiring component main body and has an engaging projection on an outer peripheral surface that engages with the notch. At the same time, it has a mounting portion to be mounted on the wiring component body at the center, and the insertion portion is a concave groove formed on the outer peripheral surface, and the withdrawing portion and the with the engaging projection engaged with the notch. The tension stopping structure for a wiring component according to claim 1, wherein the concave grooves are displaced from each other.