JP2963921B2 - Cable entry guide to wiring box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of drawing out cables such as electric wires, telephone wires, optical cables, etc. and ground wires from a wiring box connected to a buried pipe embedded in a wall or the like in an electric wiring work for a building. For a guide to use.

[0002]

2. Description of the Related Art Conventionally, when a device such as a switch or a breaker is installed on a wall of a building, a cable is pulled out from a buried pipe embedded in the wall through a wiring box arranged at a key point on the wall to the outside. After connecting the wire end to necessary equipment or a plug socket, the wiring box is closed with a decorative lid.

[0003]

However, in the related art, when the cable is drawn into the wiring box, the cable slides on the inner peripheral edge portion of the cut end of the wire protection tube connected to the wiring box, and is bent at a substantially right angle. In addition, the pulling resistance is increased to make the pull-out operation difficult, and is a major cause of damage to the cable coating. In addition, since the wiring box is often arranged at a corner or a low position of a wall surface, it is difficult for an operator to pull out the wiring box in a free direction, which makes workability more difficult.

Accordingly, the present invention provides a cable pull-in guide which can easily pull out a cable into a wiring box with a light force without damaging a cable coating, and a roller which serves as a guide when pulling out a cable. It is a primary object of the present invention to provide a cable lead-in guide which can be adjusted to a preferred depth position in a simple structure.

[0005]

In order to achieve the above object, the present invention takes the following measures. That is, in the cable lead-in guide according to the present invention, the depth of which is adjustable, the board 1 having the cable insertion / removal opening 2 and the guide plate 3 provided at the edge of the opening 2 are opened. The roller frame 4 is provided so as to be movable and adjustable in the hole axis direction, and the roller 5 is rotatably mounted on at least one of the upper and lower sides of the roller frame 4. Further, the substrate 1 is configured to be detachably connected to the wiring box A in a posture parallel to the opening surface 9 via a means such as a screw. The roller 5
Has a configuration in which the dimensions are set in advance so that the wiring box A can be inserted into the wiring box from the opening surface.

[0006] Further, in the fixed cable lead-in guide, a substrate 1 having an opening 2 for taking in and out a cable, a roller support plate 3A provided at an edge of the opening 2 and a roller support plate 3A and a roller 5 rotatably mounted on the substrate 1A.
Is configured such that it can be detachably connected in a posture parallel to the opening surface 9 of the wiring box A, and its dimensions are set so that the roller 5 is inserted and arranged in the wiring box from the opening surface of the wiring box A. There is a configuration.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in FIGS. 2 to 4, the wiring box A is embedded in the wall surface B, is attached to the front surface of the wall surface B facing the opening surface thereof, and is fixedly connected to the wiring box A with screws 6 and 6. At this time, since the position of the wiring box A which is arranged in advance is different depending on the wall thickness and the conditions at the time of construction, the roller frame 4 is slid along the guide plate 3 so that the roller 5 is moved inside the wiring box A. Adjust to the proper position. By pulling out the cable K from the buried pipe C connected to the wiring box A to the front of the wiring box via the roller 5 in this way, even if the cable is bent at a substantially right angle, the cable can be smoothly and without being damaged by the rotation of the roller. it can.

The substrate 1 is provided with an opening surface 9 of the wiring box A.
It is preferable that the mounting position can be changed at an angle of 90 degrees while maintaining a posture parallel to. In this case, by changing the mounting direction of the substrate 1, the direction of the roller 5 can be changed in accordance with the connection direction of the buried pipe C to the wiring box A.

[0009]

1 to 4 show one embodiment of a cable lead-in guide having a freely adjustable depth according to the present invention, which is a flat rectangular quadrilateral having an opening 2 for taking in and out a cable. A pair of guide plates 3, 3 erected perpendicular to the substrate surface at opposing edges of the substrate 1 and the opening 2, and movement adjustment along the guide plates 3, 3 in the axial direction of the opening. Roller frame 4 freely mounted
And a roller 5 at the lower end of the roller frame 4.
Is rotatably mounted.

In this embodiment, the guide plate 3,
The rails 3 are formed by bending both ends thereof to form rails 3a. A roller frame 4 is slidably engaged with the rails 3a. Screw holes 4c are provided on the left and right side plates 4a, 4a of the roller frame 4 at predetermined intervals above and below, and fixed to any one of the screw holes 4c from the screw insertion hole 7 of the guide plate 3 with a thumb screw or the like. The roller frame 4 is configured such that the roller can be fixed at a desired arbitrary depth position by screwing the screw 8 for use.

The board 1 is screwed into the screw holes 13 of the wiring box A from the screw holes 12 provided on the board side, thereby forming the wiring box A embedded in the wall B of the building. It is configured to be detachable in a posture parallel to the opening surface. The dimensions of the roller 5 are set in advance so that the roller 5 can be inserted into the wiring box from the opening surface 9 of the wiring box A.

The wiring box A previously embedded in the wall has the shape of a cube having an opening 9 on one side, and is provided with blind lids 11 which can be opened by tearing off the four side surfaces 10. ing. And this optional blind lid 11
And the buried pipe C buried in the wall surface is connected to this.

As shown in FIGS. 2 to 4, the above cable lead-in guide has a wiring box A embedded in a wall B.
Affixed to the front of wall B facing the opening of
To connect and fix to the wiring box A. At this time, fixed screw 8
The roller 5 is adjusted to an appropriate position in the wiring box A by loosening the roller frame 4 and sliding the roller frame 4 along the guide plate 3. By pulling out the cable K from the buried pipe C connected to the wiring box A to the front of the wiring box via the roller 5 in this manner,
Even if the cable is bent at a substantially right angle, it can be pulled out smoothly and without damage by the rotation of the roller.

The substrate 1 is provided with an opening 9 of the wiring box A.
It is preferable that the mounting position can be changed at an angle of 90 degrees while maintaining a posture parallel to. In this embodiment, two to four screw insertion holes 12 are provided on all sides of the substrate 1, and screws 6, 6
Is screwed into the screw holes 13 of the wiring box A to change the mounting direction of the substrate 1 together with the roller 5 as shown in FIG. In addition, the direction of the roller 5 can be changed.

In the present invention, the rails 3a of the guide plate 3 may be bent in a U-shape as shown in FIG. Further, as shown in FIG. 7, rails 4b... May be provided on the roller frame 4 side, and the guide plate 3 may be slidably engaged with the rails 4b.

In the above-described embodiment, the embodiment in which one roller 5 is provided on the roller frame 4 has been described. However, as shown in FIG.
5 may be provided. In this way, after being pulled out from the cable K wiring box A forward, it can be bent out and pulled out via the rollers 5 located further outside, which is convenient for the connection work at the corner of the wall surface or the like. .

FIG. 10 shows an embodiment relating to a cable lead-in guide in which the guide roller is fixed. In this embodiment, an opening hole in a substrate 1 having an opening hole 2 for taking in and out a cable is shown. The roller support plates 3A, 3A are formed by bending a substantially middle portion of the opposed edge portions 2 toward the inner surface side.
The roller 5 is rotatably supported between A and 3A. The substrate 1 is detachably connected to the screw holes 13 in a posture parallel to the opening surface 9 of the wiring box A via the holes 12. Further, in a posture in which the substrate 1 is mounted on the wiring box A, the roller 5 is provided at a substantially central portion of the conduit tube C whose lower surface is connected to the wiring box A, as indicated by a virtual line in the figure. The dimensions are set so as to be at a depth position where the cable K is guided.

Also, in the substrate 1 in this embodiment, connecting holes 12 are formed at two opposing positions, and the direction of the roller 5 is perpendicular to the direction shown in FIG. It can be attached to the wiring box A and used. The cable pull-in guide according to the present invention can be embodied as a form in which the rollers are fixed as described above.

Although the embodiments considered to be representative of the present invention have been described above, the present invention is not necessarily limited to the structures of these embodiments. For example, as shown in FIG. 8, the guide plate 3 and the side plate 4a of the roller frame 4 engaged with the guide plate 3 may be formed as one piece. In addition, the present invention has the above constitutional requirements, achieves the object of the present invention, and can be appropriately modified and implemented within a range having the following effects.

[0020]

In the cable lead-in guide according to the present invention, the rollers inserted into the wiring box can be easily pulled out of the wiring box with a light force without damaging the cable. Since the position can be adjusted, there is an excellent effect that the roller can always be arranged at a preferable position in the wiring box, and the cable pull-out operation can be performed more smoothly.

According to a fourth aspect of the present invention, the roller is configured such that the mounting position can be changed at an angle of 90 degrees while the substrate is held in a position parallel to the opening surface of the wiring box. In addition, the mounting direction of the circuit board can be changed, whereby the direction of the roller can be changed in accordance with the connection direction of the buried piping to the wiring box, and the effect that the cable can be pulled out from any direction can be accommodated. There is.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a guide according to the present invention, and also shows a wiring box.

FIG. 2 is a sectional view showing a state before the guide is mounted.

FIG. 3 is a sectional view showing a use state of the guide.

FIG. 4 is a perspective view showing a use state of the guide.

FIG. 5 is a perspective view showing another embodiment of the guide plate in the guide.

FIG. 6 is a perspective view showing another embodiment of the guide.

FIG. 7 is a perspective view showing still another embodiment of the guide.

FIG. 8 is a perspective view showing still another embodiment of the guide.

FIG. 9 is a perspective view showing another example of use of the guide.

FIG. 10 is a perspective view showing still another embodiment of the guide.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Board 2 Opening hole 3 Guide plate 4 Roller frame 5 Roller 9 Opening surface of wiring box A Wiring box

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02G 3/18 H02G 3/08 H02G 3/10 H02G 3/12 H02G 1/06

Claims (5)

(57) [Claims] 1. A board (1) having an opening (2) for taking in and out a cable and a guide plate (3) provided at an edge of the opening (2) for adjusting the movement in the axial direction of the opening. A roller frame (4) freely mounted, and a roller (5) rotatably mounted on at least one of the upper and lower sides of the roller frame (4), the substrate (1) is a wiring box (A) The roller (5) is configured to be detachably connected in a posture parallel to the opening surface (9) of the wiring box (A).
A cable lead-in guide to the wiring box whose dimensions are set so that it can be inserted and placed in the wiring box from the opening surface of the cable. 2. The cable lead-in guide to a wiring box according to claim 1, wherein a roller (5) is provided at one end of the roller frame (4). 3. The cable lead-in guide to a wiring box according to claim 1, wherein rollers (5) and (5) are provided at both upper and lower ends of the roller frame (4). 4. An opening surface of a wiring box (A), wherein said substrate (1) is
The cable lead-in guide to the wiring box according to claim 1, 2 or 3, wherein the mounting position can be changed at an angle of 90 degrees while maintaining a posture parallel to (9). 5. A board (1) having an opening (2) for taking in and out a cable, a roller supporting plate (3A) provided at an edge of the opening (2), and a roller supporting plate (3A). The substrate (1) is configured to be removably connectable in a posture parallel to the opening surface (9) of the wiring box A, and the roller (5)
Is a cable lead-in guide to a wiring box whose dimensions are set so that it is inserted into the wiring box from the opening surface of the wiring box (A).