JP3242838B2 - Wire harness tying tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire harness binding device for wiring a specific electric wire at the center of a cross section of a wire harness.

[0002]

2. Description of the Related Art As a conventional wire harness binding device of this type, there is, for example, one shown in FIGS. 11 and 12 (see Japanese Patent Application Laid-Open No. Hei 7-130234).

[0003] The wire harness binding device is formed of a cylindrical peripheral wall member 1. The cylindrical peripheral wall member 1 is formed of a flexible insulating material, and the cylindrical peripheral wall member 1 mainly includes a cylindrical peripheral wall 3 having both ends opened. Longitudinal slits 9 and 11 are provided. Support walls 13 and 15 are integrally provided in the slit 11 along the cylinder length direction of both edges 11a and 11b. The support walls 13 and 15 abut against each other and extend toward the inner center of the cylindrical peripheral wall 3. A specific electric wire holding portion 17 is integrally connected to the support walls 13 and 15 on the inner central side. The specific electric wire holding portion 17 is provided at the center of the inside of the cylindrical peripheral wall 3 along the cylinder length direction, and has a small diameter cylindrical shape. A general electric wire accommodation space 19 is provided between the specific electric wire holding portion 17 and the cylindrical peripheral wall 3.

A general electric wire W1 laid on a wiring board (not shown) is inserted into a general electric wire accommodating space 19 as shown in FIGS.
2, the specific electric wire W2 is held in the specific electric wire accommodation space 18 in the specific electric wire holding portion 17. That is,
First, the slit 9 is pushed and expanded to both sides, and the general electric wire W1 is inserted into the general electric wire accommodation space 19. All general electric wires W1
When the force for opening the slit 9 is released after the insertion, the slit 9 abuts due to the elasticity of the cylindrical peripheral wall 3, and the general electric wire accommodating space 19 is closed.

[0005] Next, the other slit 11 is pushed and expanded to both sides, and the space between the support walls 13 and 15 is opened to open the specific electric wire accommodating space 1.
Release 8. In this open state, the specific electric wire W2 is passed through the gap between the support walls 13 and 15 from the slit 11 and press-fitted into the specific electric wire holding portion 17. When the force to open the slit 11 is released,
Due to the elasticity of the cylindrical peripheral wall 3, the support walls 13, 15 abut again, and the specific electric wire housing space 18 is closed.

After the general electric wire W1 is held in the general electric wire accommodating space 19 and the specific electric wire W2 is held in the specific electric wire accommodating space 18, the tape is wound around the cylindrical peripheral wall 3,
The unity is completed.

[0007]

However, in the above-mentioned conventional structure, there is a possibility that the specific wire W2 may be jammed between the support walls 13 and 15 or the general wire W1 may be jammed in the slit 9. is there. That is, the specific wire holding portion 17 is required to have a certain thickness to protect the specific wire W2, and the cylindrical peripheral wall 3 is required to have a certain thickness to protect the general wire W1. Therefore, the slit 11 and both support walls 1
A large force is required when opening the space between 3, 15 to open the specific electric wire housing space 18. Moreover, since there is a length L from the slit 11 to the specific electric wire accommodating space 18, the supporting wall 13,
Opening 15 can be quite difficult. Therefore, when the worker is a woman or a person without power, the specific electric wire holding portion 17 cannot be sufficiently opened, and the specific electric wire W2 is sandwiched between the support walls 13 and 15 on the specific electric wire holding portion 17 side. Stopping the insertion with the support walls 13 and 15
There is a risk of being bitten in between.

Further, when the tape is wound around the cylindrical peripheral wall 3, the slit 9 may be displaced in the direction of the arrow Y by the force, and the general electric wire W1 may be bitten between the slits 9.
Moreover, in order to prevent the specific electric wire W2 from being caught between the support walls 13 and 15, the wall thickness of the entire cylindrical peripheral wall member 1 is made thinner so that the space between the support walls 13 and 15 is more easily opened. In addition, the rigidity of the cylindrical peripheral wall 3 is reduced, the displacement of the slit 9 is easily caused, and it is difficult to simultaneously prevent the general electric wire W1 and the specific electric wire W2 from being bitten. When the general electric wire W <b> 1 is bitten into the slit 9, the protruding electric wire may not be protected by the cylindrical peripheral wall member 1.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a wire harness tying device capable of improving the workability of mounting while simultaneously preventing both a general electric wire and a specific electric wire from being bitten.

[0010]

According to a first aspect of the present invention, there is provided a flexible insulating tube which is formed in a cylindrical shape having both ends opened, has a slit in a length direction extending across the both ends, and holds a general electric wire. A peripheral wall member, and a plurality of support portions provided in the cylindrical peripheral wall member in the cylinder longitudinal direction, one side of which is detachably locked to the cylindrical peripheral wall member and the other side extends to the inner central side of the cylindrical peripheral wall member. And a holding member having a specific wire holding portion integrally formed on the other side and having a cross-section surrounding the side portion opened.

Therefore, before the holding member is housed in the cylindrical peripheral wall member, the slit of the cylindrical peripheral wall member is opened, and the general electric wire laid on the wiring board is accommodated inside from the slit. Separately, the specific electric wire is inserted into the specific electric wire holding portion of the holding member, then the slit of the cylindrical peripheral wall member is reopened, the holding member is inserted from the slit, and the specific electric wire holding portion is pushed into the inside center side. Then, one side of the support portion is engaged with the cylindrical peripheral wall member to position the holding member. Then, the slit is closed and a tape is wound around the cylindrical peripheral wall member.
Since the cylindrical peripheral wall member is separate from the holding member, its rigidity can be set independently, and the slit can be made less likely to be displaced when the tape is wound.

According to a second aspect of the present invention, there is provided the wire harness tying device according to the first aspect, wherein the support portions are provided on both sides of the specific electric wire holding portion, and follow the inner surface of the cylindrical peripheral wall member on one side. Characterized by having an arcuate engaging portion that comes into contact therewith.

Therefore, in addition to the operation of the first aspect of the present invention, the positioning of the holding member is performed by the arc-shaped engaging portions of the support portions provided on both sides of the specific electric wire holding portion following the inner surface of the cylindrical peripheral wall member. Can do it. The shape of the cylindrical peripheral wall member can be held by the holding member, and the slit can be less likely to be displaced during tape winding or the like.

According to a third aspect of the present invention, there is provided the wire harness binding device according to the first aspect, wherein the support portion follows the inner and outer surfaces of the cylindrical peripheral wall member so as to sandwich the cylindrical peripheral wall member on the one side. And a pair of arcuate engaging portions that are in contact with each other, and a connecting portion that connects between the engaging portions and passes through the slit.

Therefore, in addition to the effect of the first aspect of the present invention, the positioning of the holding member can be performed by the pair of arcuate engaging portions following the inner and outer surfaces of the cylindrical peripheral wall member at the slit portion. . Since the arcuate engaging portion contacts the inner and outer surfaces of the cylindrical peripheral wall member at the slit portion, the displacement of the slit portion during tape winding or the like can be suppressed.

According to a fourth aspect of the present invention, in the wire harness tying device according to the first aspect, a plurality of the support portions are provided radially with respect to the specific electric wire holding portion, and one side is provided on the inner surface of the cylindrical peripheral wall member. Touching.

Therefore, in addition to the operation of the first aspect of the present invention, the holding member can be positioned by contacting one side of the plurality of radially provided support portions with the inner surface of the cylindrical peripheral wall member. The holding member holds the shape of the cylindrical peripheral wall member, and it is possible to make it difficult for the slit to be displaced when the tape is wound.

According to a fifth aspect of the present invention, there is provided the wire harness tying device according to any one of the first to fourth aspects, wherein the plurality of holding members are spaced from each other in a tube length direction of the cylindrical peripheral wall member. Characterized in that it is formed in a size having

Therefore, in addition to the function of any one of the first to fourth aspects of the present invention, since the holding member is formed to have a space between the cylindrical peripheral wall member and the holding member, the holding member can be compactly formed. it can.

[0020]

Embodiments of the present invention (embodiments) will be described below.

(First Embodiment) FIGS. 1 and 2 relate to a first embodiment of the present invention. FIG. 1 is a transparent perspective view, and FIG. 2 is a sectional view. As shown in FIGS. 1 and 2, the wire harness binding device includes a cylindrical peripheral wall member 21 and a holding member 23.

The cylindrical peripheral wall member 21 is formed of a flexible insulating material such as a resin, and is formed in a corrugated shape or in a cylindrical shape having a flat opening at both ends without irregularities. The tubular peripheral wall member 21 is formed with a slit 29 extending in the longitudinal direction of the tube extending over the openings 25 and 27 at both ends. The inside of the cylindrical peripheral wall member 21 is a general electric wire housing space 31.

The holding member 23 is formed of the cylindrical peripheral wall member 21.
Are provided at intervals in the cylinder length direction. First
In the embodiment, a pair is provided on both sides of the openings 25 and 27 of the cylindrical peripheral wall member 21. The distance between the holding members 23 and the number of the holding members 23 are set so that the specific electric wire W2 does not deviate from the central side in the cylindrical peripheral wall member 21.

The holding members 23 have the same shape, and include a support portion 33 and a specific electric wire holding portion 35. The support part 33 has a plate shape, one side of which is detachably engaged with the cylindrical peripheral wall member 21 and the other side of which is the cylindrical peripheral wall member 2.
1 extends toward the center of the inside.

That is, the supporting portion 33 is provided symmetrically on both sides of the specific electric wire holding portion 35, and has an arcuate engaging portion 37 which is curved along the inner surface of the cylindrical peripheral wall member 21 on one side. The outer surface of the engagement portion 37 is in contact with the inner surface of the cylindrical peripheral wall member 21.

The specific wire holding section 35 is provided with the support section 33.
Is formed integrally with the other side, has an insertion section 39 provided in a cylindrical side portion, and has an open cross-sectional surrounding shape. The inside is a specific electric wire accommodation space 41.

When assembling, first, the general electric wire W1 and the specific electric wire W2 are previously laid on the wiring board.

Then, the cylindrical peripheral wall member 21, the holding member 23
Then, the general electric wire W1 and the specific electric wire W2 are separately accommodated, and then both are assembled as shown in FIG.

That is, first, the slit 2 of the cylindrical peripheral wall member 21 is formed.
9 is opened to accommodate the general electric wire W1 up to about half of the general electric wire housing space 31. In addition, the specific electric wire W2 is separated from the holding member 23
Is held by the specific wire holding portion 35. This holding is performed by being housed in the specific wire housing space 41 from the insertion port 39.

Next, the holding member 23 holding the specific electric wire W2 is pushed into the inside by opening the slit 29 of the cylindrical peripheral wall member 21. By this pushing, the general electric wire W1 already inserted into the general electric wire housing space 31a formed on one side of the holding member 23 is held.

Next, the remaining general electric wire W1 is inserted into the general electric wire accommodating space 31b formed on the other side of the holding member 23 from the opened slit 29. After the insertion is completed, when the force for opening the slit 29 is released, the slit 29 is closed by its own elasticity of the cylindrical peripheral wall member 21, and the general electric wire W1 and the specific electric wire W2 are respectively separated as shown in FIGS. Will be retained. In addition, the general electric wire W1 is a cylindrical member 21.
Can be inserted in advance, and then the holding member 23 can be accommodated.

Further, the outer surface of the cylindrical peripheral wall member 21 is wound with a tape such as a rough winding to complete the assembly.

With such an assembly, the general electric wire W1 is housed and held in the general electric wire housing space 31, and the specific electric wire W2 is securely housed and held in the specific electric wire housing space 41 at the center inside the cylindrical peripheral wall member 21. be able to. In addition, since the cylindrical peripheral wall member 21 and the support member 23 are formed separately, the rigidity of the cylindrical peripheral wall member 21 can be set separately from the holding member 23, so that when the tape winding or the like is performed. The thickness can be set so as not to cause a displacement. Therefore, the general electric wire W to the slit 29
1 can be suppressed. Also, slit 2
Since the force for opening 9 deforms the entire cylindrical peripheral wall member 21, the force is not so large, and the insertion into the general electric wire W <b> 1 or the inside of the cylindrical peripheral wall member 21 can be facilitated. Performance can be improved.

Further, in the first embodiment, since the engaging portion 37 holds the shape of the cylindrical peripheral wall member 21, the thickness of the cylindrical peripheral wall member 21 can be reduced, and the slit 29 can be more easily opened. It becomes possible, and workability can be further improved. Even if the thickness of the cylindrical peripheral wall member 21 is reduced in this manner, the slit 29 is prevented from shifting when the tape is wound by holding the shape by the engaging portion 37, and the general electric wire W1 is engaged with the slit 29. Interference can be further suppressed.

The specific electric wire W2 can be accommodated in the specific electric wire accommodating space 41 from the insertion port 39 without requiring a force such as opening a slit.
Biting can be reliably prevented.

Therefore, it is possible to suppress the biting of both the general electric wire W1 and the specific electric wire W2 at the same time.

The holding members 23 are spaced from each other so that the specific electric wire W2 does not deviate from the central portion, so that the holding members 23 can be manufactured to be smaller than the cylindrical peripheral wall member 21 and cost can be reduced. . Further, it can be formed into the same shape with a simple structure, and the cost can be further reduced from this point.

As shown in FIG. 3, the specific electric wire W2 is formed into a corrugated shape or a flat cylindrical tube 43 having no irregularities.
In the specific wire housing space 41. In this case, the specific wire W2 can be more reliably prevented from coming off from the specific wire holding portion 35.

Next, another embodiment will be described. The components corresponding to those in the first embodiment are denoted by the same reference numerals and will not be described.

(Second Embodiment) FIGS. 4 and 5 show a second embodiment. FIG. 4 is a perspective view corresponding to FIG. 1, and FIG. 5 is a sectional view corresponding to FIG.

In the second embodiment, a single support portion 33 is provided, and a pair of engagement portions 45, 4 is provided on one side of the support portion 33.
7 is provided. The engaging portions 45 and 47 are attached to the cylindrical peripheral wall member 21 so as to sandwich the cylindrical peripheral wall member 21.
It has an arc shape that follows the inner and outer surfaces. A connecting portion 49 is provided between the engaging portions 45 and 47, and the connecting portion 49 passes through the slit 29 of the cylindrical peripheral wall member 21. Further, the insertion port 39 of the specific electric wire holding section 35 is provided on the opposite side to the support section 33.

In the second embodiment, first, all the general electric wires W1 are inserted into the general electric wire accommodating space 31 of the cylindrical peripheral wall member 21, and the holding member 23 holding the specific electric wire W2 in the specific electric wire holding portion 35. From the slit 29. Then, the holding member 23 is locked to the cylindrical peripheral wall member 21 such that the cylindrical peripheral wall member 21 is sandwiched between the engagement portions 45 and 47 at the slit 29.

Therefore, in the second embodiment, the first
Functions and effects substantially similar to those of the embodiment can be obtained.
Further, since the cylindrical peripheral wall member 21 is held so as to sandwich the cylindrical peripheral wall member 21 at the slit 29 by the engaging portions 45 and 47, the shape can be maintained, and the general electric wire W1 can be prevented from being caught in the slit 29. it can. Further, when the holding member 23 is pushed into the cylindrical peripheral wall member 21, the insertion opening 39 of the specific wire holding portion 35 is located on the front side in the pushing direction.
2 can be reliably prevented from coming off. Note that, similarly to the first embodiment, a tube 43 can be used as shown in FIG.

(Third Embodiment) FIGS. 7 and 8 relate to a third embodiment. FIG. 7 is a perspective view corresponding to FIG. 1, and FIG. 8 is a sectional view corresponding to FIG.

In the third embodiment, a plurality of, for example, four support portions 33 are provided radially with respect to the specific electric wire holding portion 35. Then, one side of the support portion 33 is in contact with the inner surface of the cylindrical peripheral wall member 21 as it is.

In the third embodiment, the general electric wire W1 is inserted into the cylindrical peripheral wall member 21 firstly.
1 accommodates about 3/4 of the general electric wire W1 and then pushes the holding member 23 into the cylindrical peripheral wall member 21 so that the general electric wire W1 is accommodated in the general electric wire accommodation spaces 31a, 31b, 31c. Then, finally, the general electric wire W1 is housed in the general electric wire housing space 31d from the slit 29. In addition, all the general electric wires W1 can be inserted in the general electric wire housing space 31 in advance.

Therefore, the third embodiment can provide substantially the same operation and effect as the first embodiment.
Also in this embodiment, since one side of the support portion 33 radially contacts the inner surface of the cylindrical peripheral wall member 21 to maintain its shape, the displacement of the slit 29 is prevented, and the general electric wire W1 is prevented.
Can be suppressed. As the holding member 23, one having five support portions 33 as shown in FIG.
Alternatively, as shown in (b), it is also possible to configure with three or the like. Further, as shown in FIG. 10, a tube 43 can be used for the specific electric wire W2.

[0048]

According to the first aspect of the present invention, the specific electric wire can be reliably inserted into the specific electric wire holding portion. In addition, it is possible to prevent the displacement of the slit from being easily caused when the tape is wound. Therefore, it is possible to simultaneously suppress the biting of both the general electric wire and the specific electric wire. Also, in the assembling work, since only the slit of the cylindrical peripheral wall member is opened, the assembling workability can be significantly improved.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to more reliably suppress the general electric wire from being caught in the slit by maintaining the shape of the cylindrical peripheral wall member. By maintaining the shape of the cylindrical peripheral wall member, the thickness of the cylindrical peripheral wall member itself can also be reduced, and the slit can be more easily opened at the time of inserting a general electric wire.
Workability can be further improved.

According to the third aspect of the invention, in addition to the effect of the first aspect of the present invention, it is possible to more reliably suppress the electric wire from being caught by preventing the slit from being shifted by the pair of engagement portions. By preventing the displacement of the slit, the thickness of the cylindrical peripheral wall member can be reduced, and the slit can be easily opened at the time of inserting the general electric wire, thereby further simplifying the operation. .

According to the fourth aspect of the present invention, in addition to the effect of the first aspect of the present invention, the positional deviation of the slit can be prevented by maintaining the shape of the cylindrical peripheral wall member, and the biting of the general electric wire can be more reliably prevented. . By maintaining the shape of the cylindrical peripheral wall member, the thickness of the cylindrical peripheral wall member can be reduced, and the slit can be easily opened when inserting a general electric wire, so that the operation can be performed more easily.

According to the fifth aspect of the present invention, in addition to the effects of any one of the first to fourth aspects of the present invention, the holding member can be formed in a small size with respect to the cylindrical peripheral wall member, and the cost can be reduced by saving materials. be able to.

[Brief description of the drawings]

FIG. 1 is a transparent perspective view according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view according to the first embodiment of the present invention.

FIG. 3 is a perspective view of a main part showing a state where a tube is used for a specific electric wire according to the first embodiment of the present invention.

FIG. 4 is a transparent perspective view according to a second embodiment of the present invention.

FIG. 5 is a sectional view according to a second embodiment of the present invention.

FIG. 6 is a perspective view of a main part in a state where a tube is used for a specific electric wire according to the second embodiment of the present invention.

FIG. 7 is a transparent perspective view according to a third embodiment of the present invention.

FIG. 8 is a sectional view according to a third embodiment of the present invention.

9A and 9B are front views of a holding member having five support portions, and FIG. 9B is a front view of a holding member having three support portions, according to the third embodiment of the present invention.

FIG. 10 is a perspective view of a main part in a state where a tube is used for a specific electric wire according to the third embodiment of the present invention.

FIG. 11 is a perspective view according to a conventional example.

FIG. 12 is a cross-sectional view according to a conventional example.

[Explanation of symbols]

 Reference Signs List 21 cylindrical peripheral wall member 23 holding member 25, 27 opening 29 slit 31 general electric wire accommodating space 33 supporting portion 35 specific electric wire holding portion 37, 45, 47 engaging portion 41 specific electric wire accommodating space 49 connecting portion W1 general electric wire W2 specific electric wire

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Susumu Nakatsugawa 252 Kawashimada, Gotemba-shi, Shizuoka Prefecture Inside Yazaki Parts Co., Ltd. (56) References JP-A-7-153333 (JP, A) JP-A-7-130235 (JP) , A) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01B 13/00 H01B 13/012

Claims (5)

(57) [Claims] 1. A flexible insulating tubular peripheral wall member which is formed in a cylindrical shape with both ends opened and has a slit in a cylinder length direction extending across the both ends and holds a general electric wire; In addition to being provided in the cylinder length direction,
A supporting portion that is detachably locked on one side to the cylindrical peripheral wall member and extends on the other side toward the center of the inside of the cylindrical peripheral wall member; A wire harness binding device comprising a holding member having a portion. 2. The wire harness tying device according to claim 1, wherein the support portions are provided on both sides of the specific wire holding portion,
A wire harness tying tool having an arcuate engaging portion on one side in contact with the inner surface of the cylindrical peripheral wall member. 3. The wire harness tying device according to claim 1, wherein the support portion contacts the inner and outer surfaces of the cylindrical peripheral wall member so as to sandwich the cylindrical peripheral wall member on the one side. A wire harness binding device, comprising: a connecting portion that connects between the engaging portions and the engaging portion and that passes through the slit. 4. The wire harness tying device according to claim 1, wherein a plurality of the support portions are provided radially with respect to the specific electric wire holding portion, and one side is in contact with the inner surface of the cylindrical peripheral wall member. Wire harness tying tool. 5. The wire harness tying device according to claim 1, wherein the plurality of holding members have a size having an interval between each other in a tube length direction of the cylindrical peripheral wall member. A wire harness binding device characterized by being formed.