JP3112828B2 - Branch clamp for corrugated tube - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a branch clamp for a corrugated tube for protecting a bundle of electric wires.

[0002]

2. Description of the Related Art A corrugated tube disclosed in Japanese Utility Model Laid-Open Publication No. Sho 61-126727 is known as a device for protecting a branch line branched from a trunk line of a wire bundle. As shown in FIG. 8, the corrugated tube 50 is formed by forming a slit portion 51 in an axial direction in a bellows-shaped tube. With this corrugated tube 50, the trunk 52 of the wire bundle
And the branch line 53 can be pulled out from the slit portion 51. In this case, the corrugated tube 50 is formed of a resin material having strong elasticity so that the trunk line 52 does not protrude from the corrugated tube 50.

A branch clamp for a corrugated tube disclosed in Japanese Utility Model Laid- Open Publication No. 54-85396 is known as a device for protecting a branch line branched from a trunk line of an electric wire bundle. As shown in FIG. 9, a branch clamp 60 for a corrugated tube forms a T-shaped tube with a trunk line portion 61 and a branch portion 64. The main line 61 is a half body 61a, 6
1b, and is connected to the first hinge part 62 so as to be openable and closable, and the branch part 64 is divided into half parts 64a and 64b and is connected to the second hinge part 65 so as to be openable and closable.
As shown in FIG. 10, the half-split bodies 61a and 61b are overlapped and locked, and the half-split bodies 64a and 64b are overlapped and locked, whereby the corrugated tube 67 is locked.
The trunk line 68 and the branch line 69 covered with the above can be housed in the branch clamp 60 for the corrugated tube.

[0004]

However, since the above-mentioned corrugated tube 50 is formed of a resin material having a strong elasticity, there is a problem that the branch line 53 is damaged by the slit portion 51. In the above-described branch clamp 60 for a corrugated tube, the individual corrugated tubes 67, 67 are arranged at both ends of the main line 61 (FIG. 9).
If the corrugated tubes 67 are strongly pulled, the corrugated tubes 67 may fall out of the trunk 61. Also,
The corrugated tube 6 in the trunk 61 or the branch 64
7 are divided at an interval, so that there is a problem that electromagnetic wave shielding performance is deteriorated.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and to provide a branch clamp for a corrugated tube which is capable of reliably protecting a branch line, securely holding a corrugated tube, and having excellent shielding properties. To provide.

[0006]

The object of the present invention is to provide a branch clamp for a corrugated tube according to claim 1, wherein
The pipe is halved to form a pair of halves, the pair of halves are openably and closably connected by hinges, and the main and branch lines covered with the corrugated tube are closed by closing the halves. A branch clamp for a corrugated tube to be sandwiched, wherein a slit portion and a tongue-shaped pressing portion are provided at a portion corresponding to a root of the branch line of each of the half-split bodies. Can be solved by clamps .

According to the branch clamp for a corrugated tube having the above-described structure, a slit portion and a tongue-shaped pressing portion are provided at a portion corresponding to the root of the branch line of each half-split body. When the trunk line and the branch line are protected by the branch clamp for the corrugated tube, the corrugated tube on the trunk line can be seen from this slit and overlap with the corrugated tube on the branch line.
Therefore, the corrugated tube covering the main line can be arranged in the branch clamp without being divided. Also, the corrugated tube on the trunk line side is seen through the slit portion, and the corrugated tube on the exposed trunk line and the corrugated tube on the branch line side are overlapped, so that the corrugated tube can completely cover the trunk line and the branched line. .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a branch clamp for a corrugated tube according to the present invention will be described below in detail with reference to FIGS. 1 is a perspective view showing an open state of a branch clamp for a corrugated tube according to the present invention, FIG. 2 is a perspective view showing a closed state in FIG. 1, and FIG. 3 is a view showing a trunk line and a branch line covered with a corrugated tube. FIG. 4 is a perspective view showing a state before assembling, FIG. 4 is a perspective view showing a state in the middle of assembling in FIG. 3, FIG. 5 is a sectional view in FIG. 4, and FIG.
FIG. 7 is a sectional view in FIG.

As shown in FIG. 1, a branch clamp 1 for a corrugated tube is formed of a resin material, and is composed of left and right half halves 3, 4 which are formed by splitting a T-shaped tube in half and connecting them with hinge portions 19. ing. Since the left and right halves 3 and 4 are formed in substantially the same shape, the right half 4 will be described, and the description of the left half 3 will be omitted. That is, the right half body 4 is composed of the main line 5 and the branch line 10, and the main line 5 is formed in a half cylindrical shape. The trunk line 5 has ribs 6 on the inner periphery of both ends, and has trunk engagement portions 7, 7 on the outer periphery, and a curved opening 8 in the center.
It has.

Further, a branch line 10 is provided at the center of the trunk line 5, and the branch line 10 is formed in a semi-cylindrical shape. Locking portions 12 are provided. A tongue-shaped pressing portion 13 is provided at the base end of the branch line portion 10.
3 protrudes inward from the inner periphery of the trunk line 5. A curved slit portion 14 is formed by the peripheral edge 13 a of the holding portion 13 and the opening 8 of the trunk line portion 5. The slit portion 14 is set so that the slit width is slightly wider than the thickness of a corrugated tube 25 described later.

The left half 3 of the T-shaped tube is constructed similarly to the right half 4 as described above. The rib 22 and the rib 23 of the branch line portion 17 have the same shape.
Further, the main line 15 is provided with main line locking claws 16, 16, and the branch line 17 is provided with branch line locking claws 18. The left and right halves 3 and 4 are connected by a hinge 19 so as to be openable and closable.

As shown in FIG. 2, the main line locking claws 16
When the left and right halves 3 and 4 are closed and overlapped, they are locked to the trunk line locking portions 7 and 7 to lock the left trunk line 15 and the right trunk line 5 in an overlapped state. I do. Also, the branch line locking claws 18, 18 (only one side is shown in FIG. 2) are provided with the branch line locking portions 12, 12 (only one side is shown in FIG. 2) when the left and right halves 3, 4 are overlapped. To lock the left branch line portion 17 and the right branch line portion 10 in an overlapping state.

FIG. 3 shows the operation of assembling the branch clamp for a corrugated tube of the embodiment constructed as described above.
6 through FIG. First, as shown in FIG. 3, the slit portion 25a of the corrugated tube 25 for the trunk line is opened, the trunk wire 26 of the wire bundle is inserted into the corrugated tube 25, and the branch line 27 is branched so as to project from the slit portion 25a. Let it. Next, the hinge part 19 of the branch clamp 1 for a corrugated tube is rotated to open the left and right half bodies 3 and 4.

Next, as shown in FIGS. 4 and 5, the corrugated tube 25 is placed in the trunk 15 of the left half 3 and the left branch line 17 is set at A and the A point as a fulcrum. By rotating in the direction of arrow B, the slit portion 21 (see FIG. 3) is greatly opened. In this state, the central part of the corrugated tube 25 is inserted into the slit part 21. Similarly, the opposite branch line portion 10 is rotated in the direction of arrow C with the point A as a fulcrum to open the slit portion 14 largely. In this state, the central portion of the opposite corrugated tube 25 is inserted into the slit portion 14.

Next, the slit 30a of the branch line corrugated tube 30 shown in FIG. 3 is opened, and the branch line 27 is inserted into the corrugated tube 30. In this case, the central part of the corrugated tube 25 for the trunk line is formed by the slits 14 and 2.
1 so that the corrugated tube 25
A gap is formed between the central portion of the corrugated tube and the trunk line 26, so that the distal end portion of the corrugated tube 30 can be brought into contact with the trunk line 26.

In this state, the hinges 19 of the branch clamp 1 for a corrugated tube are turned to close the left and right halves 3 and 4 so that they are overlapped with each other, as shown in FIG. The main line locking portions 7, 7 of the main line portion 4 and the main line locking claws 16, 16 of the main line portion 15 of the left half body 3 are locked, and the main line portions 5, 15 are locked. At the same time, the branch line locking part 1 of the branch line part 10 of the right half body 4
2 and 12 (only one side is shown) and the branch line locking claws 18 and 18 (only one side is shown) of the branch line portion 17 of the left half body 3 are locked, and the branch line portions 10 and 17 are Locked. Thereby, the left and right half bodies 3 and 4 are locked in an overlapping state.

At this time, as shown in FIG. 7, the tip of the corrugated tube 30 for the branch line overlaps with the corrugated tube 25 for the main line. In addition, the trunk line 5,15
Since the corrugated tube 25 is sandwiched between the holding member 13 and the holding portions 13 and 20, stable grounding is possible regardless of the thickness of the trunk line 26. Further, the ribs 6 and 22 (see FIG. 3) of the trunk lines 5 and 15 are provided with the concave grooves 25c
The corrugated tube 25 for a trunk line is held in the trunk lines 5 and 15. The ribs 11 and 23 (see FIG. 3) of the branch lines 10 and 17 are fitted into the concave grooves 30b of the corrugated tube 30 for branch lines, and the corrugated tubes 30 for branch lines are inserted into the branch lines 10 and 17. To hold.

[0018]

As described above, according to the branch clamp for a corrugated tube according to the first aspect, the slit portion and the tongue piece are provided at the portions corresponding to the roots of the branch lines of each half-split body.
A holding portion having a shape of a circle is provided . Therefore, by protecting the trunk and branch lines of the wire bundle at the branch clamp for corrugated tube, it is possible to eliminate the damage of the branch lines by the slit portion of the corrugated tube.

Further, the corrugated tube on the main line side can be seen from the slit portion of each half of the branch clamp for the corrugated tube, and can be overlapped with the corrugated tube on the branched tube side. Therefore, the corrugated tube covering the main line can be arranged in the branch clamp without being divided, and the corrugated tube for the main line can be reliably held by the branch clamp.

Further, the corrugated tube on the main line side can be viewed from the slit portion, and the corrugated tube on the main line side and the corrugated tube on the branch tube side can be overlapped. Therefore, since the main line and the branch line can be completely covered with the corrugated tube,
The shielding property in the branch clamp can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an open state of a branch clamp for a corrugated tube according to the present invention.

FIG. 2 is a perspective view showing a closed state of a branch clamp in FIG. 1;

FIG. 3 is a perspective view showing a state before an electric wire bundle is assembled to the branch clamp in FIG. 1;

FIG. 4 is a perspective view showing a state in the middle of assembly in FIG. 3;

FIG. 5 is a sectional view in FIG.

FIG. 6 is a perspective view showing a completed assembly state in FIG. 4;

FIG. 7 is a sectional view in FIG.

FIG. 8 is a perspective view of a conventional corrugated tube.

FIG. 9 is a perspective view showing an open state of a conventional branch clamp for a corrugated tube.

FIG. 10 is a perspective view showing a completed state of assembling the branch clamp in FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Branch clamp for corrugated tubes 3 Left half body 4 Right half body 5, 15 Trunk part 10, 17 Branch line part 14, 21 Slit part 19 Hinge part 25 Corrugated tube 26 for trunk line 26 Trunk line 27 Branch line 30 Corrugated tube for branch line

Claims (1)

(57) [Claims] 1. A T-shaped tube is divided in half to form a pair of halves, and the pair of halves are openably and closably connected by a hinge portion, and the halves are closed to cover with a corrugated tube. A branch clamp for a corrugated tube sandwiching the trunk line and the branch line, wherein a slit portion and a tongue-shaped pressing portion are provided at a portion corresponding to a root of the branch line of each of the half-split bodies. Branch clamp for corrugated tube.