JP2006087203A - Structure and method for fixing clamp and jig - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure and a method for fixing a clamp wherein a clamp can be excellently fixed on a wire harness and the workability of fixing a clamp on a wire harness can be enhanced, and a jig for forming a clamp fixing structure. <P>SOLUTION: A clamp 3 has an erected engaging portion 6 that is engaged with a member on which the clamp is to be fixed. The base portion 5 of the clamp 3 is positioned on the hollow portion side of a tubular heat-shrinkable member 2 into which a wire harness 1 can be inserted. Further, the engaging portion 6 is externally protruded from a hole 4 formed in the side portion of the heat-shrinkable member 2 so that the hollow portion is connected to the outside. In this state, the heat-shrinkable member 2 with the wire harness 1 inserted in the hollow portion is shrunken by heating, and the clamp 3 is thereby fixed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a clamp fixing structure for fixing a wire harness to an object to be fixed, a clamp fixing method, and a jig for forming the clamp fixing structure.

  Conventionally, various clamps are known as clamps for fixing a wire harness to a panel of an automobile body or the like. For example, Patent Literature 1 discloses a clamp that includes a base portion and an engaging portion that is erected from the base portion and engages with a panel for fixing a wire harness. A clamp having a band-like band part and a main body part having an insertion hole into which the band part can be inserted and locked is disclosed.

The clamp disclosed in Patent Document 1 is fixed to the wire harness by winding the tape with the base portion along the wire harness. Moreover, the clamp of the said patent document 2 is fixed to a wire harness by winding a band part around a wire harness, and inserting and locking this band part in the insertion hole of a main-body part.
JP-A-9-126356 JP-A-11-63306

  However, in the fixing structure of the clamp to the wire harness disclosed in Patent Document 1, there is a possibility that the tape may be loosened, displaced, or peeled off. Moreover, in the fixing structure to the wire harness of the clamp currently disclosed by patent document 2, after inserting a band-shaped band part into the insertion hole of a main body and latching, the operation | work of cut | disconnecting the extra length part of a band part is carried out. Necessary and workability is poor. In addition, the cut end of the belt portion becomes dust. Furthermore, when a clamp is fixed to a portion covered with a corrugated tube, the surface of the corrugated tube has an uneven shape when the band-shaped band portion is wound around the corrugated tube.

  An object of the present invention is to form a clamp fixing structure, a clamp fixing method, and a clamp fixing structure that are excellent in fixability of a clamp to a wire harness and can improve workability when fixing the clamp to the wire harness. It is to provide a jig for the purpose.

  In order to solve the above problem, the invention according to claim 1 is a clamp fixing structure for a wire harness of a clamp used when fixing a wire harness to a fixed member, and engages with the fixed member. The base portion of the clamp having the engaging portion erected is positioned on the hollow portion side of the tubular heat shrinkable member through which the wire harness can be inserted, and the hollow portion is disposed on the side portion of the tubular heat shrinkable member. In a state where the engaging portion protrudes from the communicating portion formed so as to communicate the portion and the outside, the heat shrinkable member having the wire harness inserted into the hollow portion is heated and shrunk to The clamp is fixed.

  In the invention according to the first aspect, the wire harness is inserted into the hollow portion of the tubular heat-shrinkable member, the base portion of the clamp is located on the hollow portion side of the heat-shrinkable member, and the clamp The clamp is fixed to the wire harness by heat-shrinking the heat-shrinkable member in a state where the engaging portion protrudes from the communication portion to the outside of the heat-shrinkable member.

  The invention according to claim 2 is characterized in that the tubular heat shrinkable member according to claim 1 is formed of a sheet material made of a material having heat shrinkability.

  In the invention according to the second aspect, a tubular heat-shrinkable member is formed by winding the sheet material, and the clamp to the wire harness is fixed by heat-shrinking the heat-shrinkable member. .

  According to the invention described in claim 2, the tube-shaped heat shrinkable member formed by winding the sheet material can fix the clamp to the wire harness with excellent fixability, and workability at the time of fixing. Can be improved.

  The invention according to claim 3 is a clamp fixing structure for the wire harness of a clamp used when fixing the wire harness to the member to be fixed, and the belt-like body is spirally wound so that the wire harness can be inserted. The base portion of the clamp having an engaging portion that engages with the fixed member is positioned on the hollow portion side of the heat-shrinkable member formed in the above-described manner, and from the gap between the spirally wound band-like body. The clamp is fixed by heat-shrinking the heat-shrinkable member, in which the wire harness is inserted into the hollow portion, with the engaging portion protruding to the outside.

  In the invention according to the third aspect, the wire harness is inserted into the hollow portion of the heat shrinkable member formed by spirally winding the belt-like body, and the base portion of the clamp is disposed on the hollow portion side of the heat shrinkable member. The clamp is fixed to the wire harness by heating and contracting the heat-shrinkable member in a state where the clamp is positioned and the engaging portion of the clamp protrudes to the outside from the gap of the belt-like body.

  The invention according to claim 4 is a clamp fixing method for the wire harness of a clamp used when fixing the wire harness to the fixed member, and the wire harness is inserted into the hollow portion of the tubular heat shrinkable member. An insertion step; a setting step of setting the clamp on the heat shrinkable member; and a fixing step of fixing the clamp set on the heat shrinkable member to the wire harness, the setting step including the fixation A base portion of the clamp having an engaging portion that engages with a member is positioned on the hollow portion side of the heat shrinkable member, and the hollow portion and the outside are disposed on a side portion of the tubular heat shrinkable member. The engaging portion is protruded to the outside from a communicating portion formed so as to communicate with each other. In the fixing step, the wire harness is inserted into the hollow portion. Together, characterized in that the clamp is intended for fixing the clamp by heat shrinking the heat-shrinkable member is set.

  In such a fourth aspect of the invention, the wire harness is inserted into the hollow portion of the tubular heat shrinkable member, the base portion of the clamp is located on the hollow portion side of the heat shrinkable member, and the clamp is engaged. With the joint portion protruding from the communicating portion to the outside of the heat shrink member, the heat shrink member is heated and shrunk, and the clamp is fixed to the wire harness.

  The invention according to claim 5 is characterized in that the tubular heat shrinkable member according to claim 4 is formed of a sheet material made of a material having heat shrinkability.

  In the invention according to the fifth aspect, a tubular heat shrinkable member is formed by winding the sheet material, and the heat shrinkable member is heated and shrunk to fix the clamp to the wire harness. .

  The invention according to claim 6 is a clamp fixing method for the wire harness of a clamp used when fixing the wire harness to the fixed member, and the belt-like body is spirally wound so that the wire harness can be inserted. An insertion step of inserting the wire harness into the hollow portion of the heat shrinkable member formed, a setting step of setting the clamp on the heat shrinkable member, and the clamp set on the heat shrinkable member to the wire harness. A fixing step of fixing the clamp, wherein the setting step includes positioning a base portion of the clamp provided with an engaging portion that engages with the fixed member on the hollow portion side of the heat shrinkable member, and The engaging portion is protruded to the outside from a gap between the strips wound spirally, and the wire harness is inserted into the hollow portion in the fixing step. Together, characterized in that the clamp is intended for fixing the clamp by heat shrinking the heat-shrinkable member is set.

  In the invention according to claim 6, the wire harness is inserted into the hollow portion of the heat shrinkable member, the base portion of the clamp is positioned on the hollow portion side of the heat shrinkable member, and the engaging portion of the clamp is The heat-shrinkable member is heat-shrinked in a state where the heat-shrinkable member protrudes outside the heat-shrinkable member from the gap between the strips, and the clamp is fixed to the wire harness.

  Invention of Claim 7 is a jig | tool used for formation of the clamp fixing structure of Claim 1, 2, or 3, Comprising: The heat contraction member by which the wire harness to which a clamp is fixed was penetrated, and this heat contraction A clamp that is fixed to the wire harness by a member is housed, and a heating space portion to which hot air for heating and shrinking the heat shrink member is supplied is provided.

  In the invention according to claim 7, the heat shrink member into which the wire harness is inserted and the clamp fixed to the wire harness by the heat shrink member are accommodated in the heating space portion, and the heating space. Warm air is supplied to the part to heat-shrink the heat-shrinkable member, and the clamp is fixed to the wire harness.

  According to the first aspect of the present invention, in the state where the engaging portion of the clamp protrudes from the communicating portion to the outside of the heat shrinkable member and the base portion is located on the hollow portion side of the heat shrinkable member, the heat shrinkable member Since the clamp is fixed to the wire harness by heating and shrinking, the fixability of the clamp is excellent. In addition, the clamp can be fixed to the wire harness with a simple operation of heat-shrinking the heat-shrinkable member, and workability can be improved.

  According to the invention described in claim 2, the tube-shaped heat shrinkable member formed by winding the sheet material can fix the clamp to the wire harness with excellent fixability, and workability at the time of fixing. Can be improved.

  According to the invention described in claim 3, the heat contraction member is heated and contracted in a state where the engaging portion of the clamp protrudes from the gap of the belt-like body and the base portion is positioned on the hollow portion side of the heat contraction member. Since a clamp is fixed with respect to a wire harness by this, the fixability of a clamp is excellent. In addition, the clamp can be fixed to the wire harness with a simple operation of heat-shrinking the heat-shrinkable member, and workability can be improved.

  According to the fourth aspect of the present invention, the heat shrinkable member is formed in a state in which the engaging portion of the clamp projects from the communication portion to the outside of the heat shrinkable member and the base portion is located on the hollow portion side of the heat shrinkable member. Since the clamp is fixed to the wire harness by heating and shrinking, the fixability of the clamp is excellent. In addition, the clamp can be fixed to the wire harness with a simple operation of heat-shrinking the heat-shrinkable member, and workability can be improved.

  According to the fifth aspect of the present invention, the tube-shaped heat-shrinkable member formed by winding the sheet material can fix the clamp to the wire harness with excellent fixability, and work for fixing Can be improved.

  According to the invention described in claim 6, the engagement portion of the clamp protrudes from the gap of the belt-like body to the outside of the heat shrink member, and the base portion is positioned on the hollow portion side of the heat shrink member. Since the clamp is fixed to the wire harness by heat-shrinking the contraction member, the fixability of the clamp is excellent. In addition, the clamp can be fixed to the wire harness with a simple operation of heat-shrinking the heat-shrinkable member, and workability can be improved.

  According to invention of Claim 7, when heat-shrinking a heat-shrinkable member and fixing a clamp with respect to the said wire harness, of the heat-shrinkable member on the wire harness which is a part accommodated in the heating space part Since only the part is heated, the other part can be prevented from being heated.

Hereinafter, an example of the best mode for carrying out the present invention will be described with reference to the drawings.
First, a first embodiment of a clamp fixing structure according to the present invention will be described with reference to FIG. FIG. 1 is a view showing a first embodiment of a clamp fixing structure according to the present invention.

  In the figure, reference numeral 1 denotes a wire harness composed of a bundle of wires made up of a plurality of electric wires, and 2 denotes a heat shrink member for fixing the clamp 3 to the wire harness 1. The wire harness 1 is fixed to a member to be fixed (not shown) such as a panel of an automobile by a clamp 3 fixed to the head.

  The heat-shrinkable member 2 is formed in a tube shape from a heat-shrinkable synthetic resin material, and the wire harness 1 is inserted through the hollow portion thereof. A hole 4 is formed in a side portion of the heat shrinkable member 2, and the hollow portion of the heat shrinkable member 2 communicates with the outside through the hole 4 (that is, the hole 4 communicates with the claims). Part).

  The clamp 3 includes a plate-like base portion 5 and an engaging portion 6 erected on the base portion 5. The plate-like base portion 5 is larger than the size of the hole 4 formed in the heat shrinkable member 2. The engaging portion 6 includes a shaft portion 6a and a protrusion 6b provided on the shaft portion 6a. By engaging the protrusion 6b with the fixed member, the clamp 3 is fixed to the fixed member. Can be engaged.

  In the clamp fixing structure of this example, the clamp 3 has a state in which the base portion 5 is positioned on the hollow portion side of the heat shrinkable member 2 and the engaging portion 6 protrudes from the hollow portion to the outside in the hole 4 of the heat shrinkable member 2. It has become. The clamp 3 in such a state is fixed to the wire harness 1 by heat-shrinking the heat-shrinkable member 2 and closely fixing the heat-shrinkable member 2 to the outer periphery of the wire harness 1. More specifically, the clamp 3 is fixed to the wire harness 1 with the base portion 5 sandwiched between the heat-shrinkable member 2 that has been heat-shrinked and the outer periphery of the wire harness 1.

Next, a method (clamp fixing method) for forming such a clamp fixing structure will be described with reference to FIGS.
The clamp fixing method of this example includes an insertion step of inserting the wire harness 1 into the hollow portion of the heat shrinkable member 2, a setting step of setting the clamp 3 on the heat shrinkable member 2, and a clamp 3 set on the heat shrinkable member 2 And a fixing step for fixing the wire harness 1 to the wire harness 1.

  In this example, the setting process is performed after the insertion process. The setting process will be described in detail. In this process, as shown in FIG. 2, the base part 5 of the clamp 3 is moved to the hollow part side from the hole 4 of the heat-shrinkable member 2 in which the wire harness 1 is inserted into the hollow part in the insertion process. As shown in FIG. 3, the base portion 5 is positioned in the hollow portion, and the engaging portion 6 is protruded to the outside from the hole 4 to form the clamp set portion 7 on the wire harness 1.

  Next, the clamp 3 set on the heat shrinkable member 2 in this way is fixed to the wire harness 1 (fixing step). In this fixing step, the heat shrink member 2 is heated and shrunk to fix the clamp 3. The heat shrinkage of the heat shrinkable member 2 is performed using a jig 8 (see FIGS. 4 and 5).

  Here, the jig 8 will be described. The jig 8 includes a jig body 9 and a hot air supply unit 10. The jig main body 9 is composed of a receiving member 12 and a lid member 13 connected via a hinge portion 11. The receiving member 12 and the lid member 13 are formed with substantially semicircular grooves 14 and 15, respectively. When the receiving member 12 and the lid member 13 are brought into contact with each other, the groove 14 and the groove 15 form a wire. A heating space portion 16 having a substantially circular shape in plan view for accommodating the clamp set portion 7 formed on the harness 1 is formed.

  The hot air supply unit 10 is configured in a cylindrical shape and is connected to a hose 17 connected to a hot air supply source (not shown). A hole 18 passes through the groove 14 of the receiving member 12 from the hollow portion of the hot air supply unit 10, and the hot air from the hot air supply source passes through the hose 17 and the hot air supply unit 10 and the hole 18. To the heating space 16. The hole 18 is formed to have a diameter into which the engaging portion 6 of the clamp 3 can be inserted.

  The heat shrinkage of the heat shrinkable member 2 using the jig 8 configured as described above is performed as follows. First, as shown in FIG. 4, the clamp set portion 7 formed on the wire harness 1 is placed in the groove 14 of the receiving member 12 of the jig main body portion 8 with the lid member 13 opened. At this time, the clamp set portion 7 is placed in the groove 14 with the engaging portion 6 of the clamp 3 being inserted into the hole 18. Next, as shown in FIG. 5, the lid member 13 is closed and the lid member 13 and the receiving member 12 are brought into contact with each other. Thereby, the heating space portion 16 is formed, and the clamp setting portion 7 is accommodated in the heating space portion 16. Then, hot air from the hot air supply source is supplied to the heating space portion 16 via the hot air supply portion 10 and the hose 17, the heat shrink member 2 is heated and contracted, and this is closely attached to the outer periphery of the wire harness 1. By fixing, the clamp 3 is fixed to the wire harness.

  According to this embodiment, the engaging portion 6 of the clamp 3 protrudes from the hole 4 to the outside of the heat shrinkable member 2 and the base portion 5 is located on the hollow portion side of the heat shrinkable member 2. The clamp 3 is fixed to the wire harness 1 by heat-shrinking the heat-shrinkable member 2 and fixing the heat-shrinkable member 2 to the outer periphery of the wire harness 1, so that the fixability of the clamp 3 is excellent. In addition, the clamp 3 can be fixed to the wire harness 1 by a simple operation of heat-shrinking the heat-shrinkable member 2 and the workability can be improved.

  Further, when the heat shrinkable member 2 is heated and shrunk and fixed to the outer periphery of the wire harness 1 to fix the clamp 3, only the clamp set portion 7 accommodated in the heating space portion 16 is fixed by the jig 8. Since it heats, it can prevent that another part is heated.

  In the present embodiment described above, the heat-shrinkable member 2 is formed in a tube shape in advance, but may be formed by winding a sheet material made of a material having heat-shrinkability into a tube shape. .

  Further, the heat shrinkable member 2 may form a hot melt adhesive layer on the hollow portion side. As a result, the heat shrinkable member 2 is heated to melt the hot melt adhesive layer, and then cooled and solidified to further enhance the fixing force of the heat shrinkable member 2 to the outer periphery of the wire harness 1.

  Moreover, in the said embodiment, although the hole 4 is formed in the side part of the tube-shaped heat-shrink member 2 in order to make the engaging part of the clamp 3 protrude outside from the hollow part of the heat-shrink member 2. Although not shown in the drawings, as a communication portion that communicates the hollow portion of the heat shrinkable member 2 with the outside instead of the hole 4, for example, a slit or the like may be formed on the side portion of the heat shrinkable member 2.

  Furthermore, in the clamp fixing method in the above embodiment, the setting step is performed after the insertion step, but the order may be reversed. That is, after the base portion 5 of the clamp 3 is positioned on the hollow portion side of the heat shrinkable member 2 and the engaging portion 6 is protruded from the hole 4 (setting step), the wire is connected to the hollow portion of the heat shrinkable member 2. The harness 1 may be inserted (insertion process).

  Next, a second embodiment of the clamp fixing structure according to the present invention will be described with reference to FIG. FIG. 6 is a view showing a second embodiment of the clamp fixing structure according to the present invention. In the figure, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

  In the figure, reference numeral 20 denotes a heat shrinkable member of this example, and this heat shrinkable member 20 spirals a belt-like body formed of a heat shrinkable synthetic resin material so that the wire harness 1 can be inserted. It is formed by wrapping around. The base part 5 of the clamp 3 is located on the hollow part side of the heat shrinkable member 20, and the engaging part 6 protrudes from the hollow part to the outside. In this example, the engaging part 6 protrudes outside from the gap of the belt-like body of the heat shrinkable member 20. The clamp 3 is fixed to the wire harness 1 by heat-shrinking the heat-shrinkable member 20 and fixing the heat-shrink member 20 to the outer periphery of the wire harness 1.

Next, a method (clamp fixing method) for forming such a clamp fixing structure will be described with reference to FIGS.
The clamp fixing method of this example also includes an insertion step of inserting the wire harness 1 into the hollow portion of the heat shrinkable member 20, a setting step of setting the clamp 3 on the heat shrinkable member 20, and a clamp 3 set on the heat shrinkable member 20. And a fixing step for fixing the wire harness 1 to the wire harness 1.

  And also in this example, the said setting process is performed after the said insertion process. The setting process will be described in detail. In this process, as shown in FIG. 8, from the gap 21 of the belt-shaped body of the heat-shrinkable member 20 in which the wire harness 1 is inserted into the hollow portion in the insertion process, as shown in FIG. The base portion 5 is inserted into the hollow portion side, and the engagement portion 6 is projected from the gap 21 to the outside, and the clamp set portion 22 is formed on the wire harness 1.

Next, the clamp 3 thus set on the heat shrink member 20 is fixed to the wire harness 1 (fixing step). In this fixing step, the heat shrink member 20 is heated and shrunk to fix the clamp 3. Although the heat shrinkage of the heat shrinkable member 20 is not shown in this example, it is performed using the jig 8 described in the first embodiment (see FIGS. 4 and 5). That is, as in the first embodiment, hot air is supplied to the heating space portion 16 of the jig 8 that houses the clamp set portion 22 to heat-shrink the heat-shrinkable member 20, and this is applied to the outer periphery of the wire harness 1. The clamp 3 is fixed to the wire harness 1 by tightly fixing.
Also by this embodiment, the same effect as the first embodiment can be obtained.

  Also in the second embodiment described above, the heat-shrinkable member 20 may form a hot melt adhesive layer on the hollow portion side.

  Further, in the first and second embodiments, although not shown, the wire harness 1 is inserted into the corrugated tube, and the heat-shrinkable members 2 and 20 that are heat-shrinked are tightly fixed to the outer periphery of the corrugated tube to clamp 3 May be fixed.

The perspective view which shows 1st embodiment of the clamp fixing structure which concerns on this invention. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG. The perspective view which shows 2nd embodiment of the clamp fixing structure which concerns on this invention. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG. The figure for demonstrating the clamp fixing method for forming the clamp fixing structure shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire harness 2 Heat contraction member 3 Clamp 4 Hole 5 Base part 6 Engagement part 8 Jig 16 Heating space part 20 Heat contraction member 21 Crevice

Claims (7)

A clamp fixing structure for the wire harness of the clamp used when fixing the wire harness to the fixed member,
A base portion of the clamp that has an engaging portion that engages with the member to be fixed is positioned on a hollow portion side of a tubular heat-shrinkable member through which the wire harness can be inserted, and the tubular heat The heat in which the wire harness is inserted into the hollow portion in a state where the engaging portion protrudes to the outside from a communicating portion formed so as to communicate the hollow portion and the outside with the side portion of the contracting member. A clamp fixing structure, wherein the clamp is fixed by heat-shrinking the contraction member. The clamp fixing structure according to claim 1, wherein the tubular heat shrinkable member is formed of a sheet material made of a material having heat shrinkability. A clamp fixing structure for the wire harness of the clamp used when fixing the wire harness to the fixed member,
Position the base portion of the clamp with the engaging portion that engages with the fixed member on the hollow portion side of the heat-shrinkable member formed by spirally winding a band so that the wire harness can be inserted In addition, in the state where the engagement portion protrudes to the outside from the gap between the strips wound spirally, the heat shrink member in which the wire harness is inserted into the hollow portion is heated and shrunk to A clamp fixing structure characterized by being fixed. A clamp fixing method for the wire harness of a clamp used when fixing the wire harness to a fixed member,
An insertion step of inserting the wire harness into a hollow portion of a tubular heat shrink member, a setting step of setting the clamp on the heat shrink member, and a clamp set on the heat shrink member with respect to the wire harness A fixing step of fixing,
In the setting step, a base portion of the clamp provided with an engaging portion that engages with the fixed member is positioned on the hollow portion side of the heat shrink member, and the tube-like heat shrink member side The engagement portion protrudes from the communication portion formed so as to communicate the hollow portion and the outside to the portion,
The fixing step includes fixing the clamp by heat-shrinking the heat-shrinkable member in which the wire harness is inserted into a hollow portion and the clamp is set. The clamp fixing method according to claim 4, wherein the tubular heat shrinkable member is formed of a sheet material made of a material having heat shrinkability. A clamp fixing method for the wire harness of a clamp used when fixing the wire harness to a fixed member,
An insertion step of inserting the wire harness into a hollow portion of a heat-shrinkable member formed by spirally winding a strip so that the wire harness can be inserted; a setting step of setting the clamp on the heat-shrinkable member; A fixing step of fixing the clamp set to the heat shrinkable member to the wire harness,
In the setting step, the base portion of the clamp provided with an engaging portion that engages with the member to be fixed is positioned on the hollow portion side of the heat shrinkable member, and the band-shaped body wound spirally The engagement portion protrudes from the gap to the outside,
The fixing step includes fixing the clamp by heat-shrinking the heat-shrinkable member in which the wire harness is inserted into a hollow portion and the clamp is set. A jig used for forming the clamp fixing structure according to claim 1, 2 or 3,
A heat-shrinkable member through which a wire harness to which a clamp is fixed is inserted and a clamp fixed to the wire harness by the heat-shrinkable member are accommodated, and heated to supply hot air to heat-shrink the heat-shrinkable member A jig characterized by having a space.

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