JP2000184550A - Harness protector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change an inside diameter freely, to facilitate fitting, and to prevent a protector from opening by providing two or more band clamps which enable insertion of bands, when the protector body is rounded into a cylindrical shape, and have locking claws which engage with locking teeth. SOLUTION: The maximum diameter of a bundle of electric wires wrappable is determined by a protector body 10, and it becomes possible to wrap a bundle of electric wires by the protector body 10 without being opened by the bundle always, if any locking tooth 21 of each band 20 is in a range of engageable with the locking claw 31 of a band clamp 30. Incidentally, the inside diameter of the protector body 10 rounded into a cylindrical shape becomes smallest, when a locking tooth 21B of the band 20 which is the nearest to the protector body 10 engages the locking claw 31 of the band clamp 30. It becomes possible to change the inside diameter freely, corresponding to the partial outside diameter difference of the wire bundle, and to facilitate fitting and to prevent the protector from opening surely, by using this harness protector in this way.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness protector which encloses and protects a wire bundle forming a wire harness. The present invention relates to a harness protector whose inner diameter can be freely changed, installation is easy, and opening of the mouth can be reliably prevented.

[0002]

2. Description of the Related Art A corrugated tube as shown in FIG. 8 has conventionally been used to prevent interference of a wire harness routed in a vehicle with the outside and to protect it from rainwater and dust.

In FIG. 1, a corrugated tube 100 is shown.
Is a synthetic resin accordion-shaped cylindrical body, and a single slit 10
1 is provided. Such a corrugated tube 100 encloses and protects the wire bundle by widening the slit 101 and inserting a wire bundle forming a wire harness (not shown) into the cylinder.

[0004]

However, in the above-mentioned conventional corrugated tube 100, since the inner diameter of the cylinder is constant over its entire length, for example, as shown in FIG. In the case where the outer diameters differ from each other, it was not possible to cope with this difference.

For this reason, when the corrugated tube 100 having a small inner diameter corresponding to the small diameter portion L1 of the wire bundle 110 is used, the slit 101 of the corrugated tube 100 opens at the large diameter portion L2 of the wire bundle 110, and There is a problem that the wire bundle 110 cannot be protected in the large diameter portion L2.

In this case, when the corrugated tube 100 having a large inner diameter corresponding to the large diameter portion L2 of the wire bundle 110 is used, both the small diameter portion L1 and the large diameter portion L2 can be protected, but the partial large diameter portion L2 can be protected. Due to the portion L2, the entire corrugated tube 100 has a large diameter, and there is a problem that space in the vehicle is wasted.

Further, the difference in the outer diameter of the wire bundle 110 forming the wire harness is not limited to the above-described branch portion,
When joints are made between the electric wires, as shown in FIG. 10, they can also occur in the middle portion of the electric wire bundle 110, and in such a case, the same problem as described above occurs.

In Japanese Utility Model Application Laid-Open No. 59-166320,
As shown in FIGS. 11A and 11B, a plurality of ridges 211 are provided on the surface of one side edge 210 a of the bendable band 210, and the back surface of the other side edge 210 b of the band 210. An electric wire protection cover 200 having a plurality of concave grooves 212 is proposed.

In the electric wire protection cover 200 having such a configuration, the strip 210 is rolled up, the one side edge 210a and the other side edge 210b are overlapped, and the plurality of ridges 211 and the concave grooves 212 are engaged with each other. By combining them, the band 21
The opening of 0 is prevented.

However, although it is possible to prevent the opening of the band-shaped body 210, there is a problem that a large amount of labor and time are required for mounting since a plurality of the ridges 211 and the concave grooves 212 must be engaged one by one. Was.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has a structure in which an inner diameter can be freely changed in accordance with a partial difference in outer diameter of a wire bundle, and installation is simple and easy. An object of the present invention is to provide a harness protector that can reliably prevent the opening.

[0012]

According to a first aspect of the present invention, there is provided a harness protector for covering a wire bundle forming a wire harness and protecting the same. A main body, two or more bands provided on one side of the protector main body parallel to the wire bundle and having a plurality of serrations continuous in a saw-tooth shape, and parallel to the wire bundle of the protector main body; And two or more band clamps, which are provided on the other side with an interval, allow the band to be inserted when the protector body is rolled into a cylindrical shape, and have locking claws engaging with the locking teeth. There is a configuration.

In the harness protector having the above configuration, the sheet-shaped protector body is rolled up into a cylindrical shape to cover the wire bundle, each band is inserted into a band clamp, and the outer diameter of the wire bundle is set for each band. Engage the locking claw with the locking tooth at the position according to the difference in size.

According to such a harness protector, the inner diameter of the protector main body can be freely changed according to the difference in the partial outer diameter of the wire bundle. As a result, a wire bundle having a partial difference in outer diameter can be reliably protected by a harness protector having an inner diameter adapted to the difference in size, and the space in the vehicle can be effectively used.

Further, by simply inserting each band into the band clamp, the band can be easily attached to the wire bundle, and the opening of the protector body can be reliably prevented.

Preferably, as in the harness protector according to claim 2, when the locking teeth of the band farthest from the protector main body engage with the locking claws of the band clamp, the band is rounded into a cylindrical shape. And one side of the protector main body and the other side coincide with each other.

According to such a configuration, the maximum diameter of the wire bundle that can be covered by the protector body is determined, and as long as any of the locking teeth of the band is in a range that engages with the locking claw of the band clamp, it is always possible. The wire bundle can be covered by the protector body without opening the mouth.

Preferably, as in the harness protector according to the third aspect, the protector body is configured to be bent in a bellows shape.

According to this configuration, even when the wire bundle forming the wire harness is routed in a bent state in the vehicle, the protector body is flexibly bent in accordance with the bending of the wire bundle. Can be done.

Preferably, as in the harness protector according to the fourth aspect, a pair of the band and the band clamp are additionally provided on one side of the protector main body orthogonal to the wire bundle at an interval.

According to such a configuration, when the present harness protector is attached to the wire bundle branched from the trunk of the wire harness, the protector body, which is rolled up in a cylindrical shape and encloses the wire bundle, is attached to the expanded band and the band clamp. By fixing the protector body to the trunk in advance, when the existing band for preventing the protector body from opening is tightened, it is possible to restrict the protector body from rotating in the tightening direction of the existing band. This makes it possible to easily attach the harness protector to the wire bundle branched from the trunk line.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the harness protector of the present invention will be described with reference to the drawings. First, a harness protector according to a first embodiment of the present invention will be described. FIG. 1 is a perspective view showing a harness protector according to the first embodiment of the present invention. FIG. 2 is a development view showing the harness protector. FIG. 3 (a),
(B), (c) is explanatory drawing which shows a series of operation | movement of the band clamp provided in the said harness protector. FIG.
(A), (b) is a sectional view showing a maximum inner diameter and a minimum inner diameter of the harness protector, and (c) is a plan view of a band showing engagement positions of locking teeth at the maximum inner diameter and the minimum inner diameter. It is.

1 and 2, a harness protector 1 of the present embodiment comprises a protector body 10, two bands 20, 20, and two band clamps 30, 30.
Is formed integrally with a synthetic resin.

The protector body 10 is in the form of a sheet having flexibility, is rolled into a cylindrical shape, and encloses the wire bundle. Each band 20 is provided at regular intervals on one side of the protector body 10 in the longitudinal direction (the direction parallel to the wire bundle to be encapsulated), and a plurality of locking teeth 21 which are continuous in a sawtooth shape are provided.
Having.

Each band clamp 30 corresponds to each band 20, and is provided at a predetermined interval on the other side in the longitudinal direction of the protector body 10. As shown in FIGS. 1 and 3A, each band clamp 30 has a configuration in which a locking claw 31 is coupled to a support frame 32 bent and raised from the protector body 10. When the band 20 is inserted, any locking teeth 21 of the band 20
The locking claw 31 engages with the band 20 to lock the band 20.

In the present embodiment, as shown in FIG. 3A, a notch 31a is formed between the locking claw 31 and the support frame 32 to make the locking claw 31 easily bendable. This allows
As shown in FIGS. 3A to 3C, the locking teeth 21 of the band 20 can smoothly pass through the locking claws 31, and the positions where the locking teeth 21 and the locking claws 31 mesh with each other are easily adjusted. can do.

As described above, by adjusting the engagement position between the locking teeth 21 of each band 20 and the locking claw 31 of each band clamp 30, the inner diameter of the cylindrical protector body 10 can be partially changed. Can be.

As shown in FIGS. 4A and 4C,
When the locking teeth 21A of the band 20 farthest from the protector main body 10 engage with the locking claws 31 of the band clamp 30, one side and the other side of the protector main body 10 in the state of being rounded into a cylinder are mutually separated. In agreement, the inner diameter of the protector body 10 is maximized.

Thus, the maximum diameter of the bundle of electric wires that can be covered by the protector body 10 is determined, and as long as any of the locking teeth 21 of the band 20 is within the range of engagement with the locking claw 31 of the band clamp 30, The wire bundle can be covered by the protector body 10 without opening the mouth.

As shown in FIGS. 4B and 4C,
Locking teeth 21 closest to protector body 10 of band 20
When B engages with the locking claw 31 of the band clamp 30, the inner diameter of the protector body 10 in a state of being rounded into a cylindrical shape is minimized.

Next, the use state of the harness protector 1 according to the present embodiment having the above configuration will be described with reference to FIG. FIG. 5 is a plan view showing a use state of the harness protector.

In FIG. 2, reference numeral 2 denotes a wire harness routed in a vehicle (not shown), which has a configuration in which a wire bundle 2B branches off from the middle of a trunk line 2A. The wire bundle 2B
Is a partial difference in the outer diameter (small diameter portion L1 and large diameter portion L
2) has occurred.

First, the protector main body 10 is rolled into a cylindrical shape to cover the wire bundle 2B, and the bands 20, 20 are inserted through the band clamps 30, 30, respectively. Then, for each of the bands 20, 20, the locking claws 31 are engaged with the locking teeth 21 at positions corresponding to the small diameter portion L1 and the large diameter portion L2 of the wire bundle 2B (see FIG. 1), and the inner diameter of the protector body 10 is reduced. And the small diameter portion L1 and the large diameter portion L2 of the wire bundle 2B.

According to the harness protector 1 of the present embodiment having such a configuration, the inner diameter of the protector body 10 can be freely changed in accordance with the partial difference in outer diameter of the wire bundle 2B. Thus, the wire bundle 2B having a partial difference in outer diameter can be reliably protected by the protector body 10 having an inner diameter adapted to the difference in size, and the space in the vehicle can be effectively used. it can.

Further, the band 20 can be easily attached to the electric wire bundle 2B simply by passing the band 20 through the band clamp 30, and the band 20 and the band clamp 30 prevent the protector body 10 from opening. be able to.

Next, a harness protector according to a second embodiment of the present invention will be described. FIG. 6 is a plan view showing a use state of the harness protector according to the second embodiment of the present invention.

In the same figure, the harness protector 3 of this embodiment has a configuration in which a bellows portion 11 is provided on the protector body 10 so that the protector body 10 can be bent. According to such a configuration, even when the wire bundle 2B forming the wire harness 2 is routed in a vehicle (not shown) in a bent state, the protector body 10 is moved in accordance with the bending of the wire bundle 2B. It can be flexibly bent.

Next, a harness protector according to a third embodiment of the present invention will be described. FIG. 7 is a plan view showing a use state of the harness protector according to the third embodiment of the present invention.

In the same figure, the harness protector 4 of the present embodiment has a configuration in which a pair of bands 40 and a band clamp 50 are additionally provided on one side of the protector body 10 orthogonal to the wire bundle 2B with an interval.

According to such a configuration, when the present harness protector 4 is attached to the wire bundle 2B branched from the trunk line 2A of the wire harness 2, the wire bundle 2B is rolled into a tubular shape.
The protector body 10 enclosing the
When the protector main body 10 is fastened to the trunk line 2A in advance by the band clamp 50 and the protector main body 10 is tightened in order to prevent the mouth opening of the protector main body 10, the protector main body 10 is fixed in the tightening direction P of the existing band 20.
Can be restricted. Thereby, the present harness protector 4 can be easily attached to the electric wire bundle 2B branched from the trunk line 2A.

Note that the harness protector of the present invention is not limited to the above embodiments. For example,
In each of the above embodiments, two sets of the band 20 and the band clamp 30 are provided. However, the present invention is not particularly limited, and three or more sets of the band 20 and the band clamp 30 may be provided at regular intervals. Good. Further, the harness protector of the present invention can cope with a partial difference in outer diameter at the intermediate portion of the wire bundle 10 as shown in FIG.

[0042]

As described above, according to the harness protector of the present invention, the inner diameter can be freely changed in accordance with the partial difference in outer diameter of the wire bundle, and the harness protector can be easily installed and the port can be easily opened. Opening can be reliably prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a harness protector according to a first embodiment of the present invention.

FIG. 2 is a development view showing the harness protector.

FIGS. 3A, 3B and 3C are explanatory views showing a series of operations of a band clamp provided in the harness protector.

FIGS. 4A and 4B are cross-sectional views showing a maximum inner diameter and a minimum inner diameter of the harness protector, and FIGS.
FIG. 4 is a plan view of a band showing engagement positions of locking teeth at the maximum inner diameter and the minimum inner diameter.

FIG. 5 is a plan view showing a use state of the harness protector.

FIG. 6 is a plan view showing a use state of a harness protector according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a use state of a harness protector according to a third embodiment of the present invention.

FIG. 8 is a perspective view showing a corrugated tube as a conventional technique.

FIG. 9 is a plan view showing a branch portion of the wire harness.

FIG. 10 is a plan view showing an intermediate portion of a wire bundle constituting the wire harness.

11A and 11B show an electric wire protection cover disclosed in Japanese Utility Model Laid-Open No. 59-166320, wherein FIG. 11A is an overall perspective view, and FIG.

[Explanation of symbols]

 1,3,4 Harness protector 2 Wire harness 2A Trunk line 2B Wire bundle 10 Protector body 11 Bellows 20,40 Band 21,21A, 21B Locking teeth 30,50 Band clamp 31 Locking claw 31a Notch 32 Support frame

Claims (4)

[Claims] 1. A harness protector for enclosing and protecting a wire bundle forming a wire harness, comprising: a sheet-like protector body; and a space provided on one side of the protector body parallel to the wire bundle. Provided, two or more bands having a plurality of locking teeth continuous in a saw-tooth shape, provided at intervals on the other side of the protector body parallel to the wire bundle, and rounded the protector body into a cylinder. A harness protector, comprising: at least two band clamps, each of which has a locking claw that allows the band to pass therethrough and engages with the locking teeth. 2. When one of the locking teeth of the band farthest from the protector main body is engaged with the locking claw of the band clamp, one side and the other side of the protector main body in a cylindrically rounded state. 2. The harness protector according to claim 1, wherein 3. The harness protector according to claim 1, wherein the protector main body is capable of being bent in a bellows shape. 4. The harness protector according to claim 1, wherein a pair of said band and said band clamp are additionally provided on one side of said protector body orthogonal to said wire bundle with a space therebetween.