JP2007143273A - Attachment tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an attachment tool for wire harnesses that makes it possible to enhance the strength of fixation on a member and is superior in workabilities of attachment to and dismantling from a member and further in recyclability. <P>SOLUTION: The attachment tool 2 is used to fix a wire harness 1 to a member 3, and includes a pair of clamping pieces 11a, 11b disposed opposite to each other with a gap in-between and a hinge 12 that couples together the intermediate portions of the clamping pieces 11a, 11b. Part of the wire harness 1 is housed in between the base end portions of the clamping pieces 11a, 11b. An anchoring lug 13 is erected on the inner surface of at least either the end portions of the clamping pieces 11a, 11b. When a supporting piece 4 erected from the member 3 is inserted and clamped between the end portions of the clamping pieces 11a, 11b, the clamping pieces 11a, 11b swing on the hinge 12 so that the spacing W between the end portions is widened. Thus, the part of the wire harness 1 housed between the base end portions is clamped between the base end portions. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a wire harness fixture for fixing a wire harness to a member to be attached.

  In a vehicle such as an automobile, the wire harness is fixed to a member to be attached such as a panel or a bumper and is routed in various parts of the vehicle. As a conventional wire harness fixture for fixing the wire harness to these members to be attached, one shown in FIG. 8 is known (for example, see Patent Document 1).

  As shown in FIG. 8, the wire harness 100 is fixed to a bumper 103 that is a member to be attached by a harness holding member 101 and a rib clip member 102 that are attachments. A rib 104 protrudes from the bumper 103, and the harness holding member 101 of a resin molded product holding the wire harness 100 is attached to the rib 104 by inserting the rib 104 through the insertion hole 105.

  The rib clip member 102 is formed such that the metal plate is folded in half so that the rib 104 can be sandwiched between the opposing pieces 106 and 107, and the rib clip member 102 is attached to the tip of the rib 104. At least one of the piece portions 106 and 107 of the rib clip member 102 is a presser that extends toward the tip end side of the rib 104 and is raised inward when the rib clip member 102 is attached to the tip end portion of the rib 104. A piece 108 is formed, and an edge portion of the holding piece 108 bites into the rib 104 to prevent the rib clip member 102 from coming off from the rib 104. At least one end of each of the pieces 106 and 107 of the rib clip member 102 is formed with a retaining piece 109 that extends toward the base end of the rib 104 and is raised outward. The retaining piece 109 is in contact with the harness holding member 101 attached to the rib 104 to prevent the harness holding member 101 from coming off the rib 104.

JP 2004-357456 A

  However, the above-described conventional wire harness fixture has a configuration in which the rib 104 is sandwiched only by the rigidity of the metal plate forming the rib clip member 102 and the edge portion of the presser changing portion 108 is bitten into the rib 104. Therefore, the fixing strength of the rib clip member 102 to the rib 104 is not sufficient, and the rib clip member 102 and the harness holding member 101 may fall out of the rib 104. To cope with this, the rib clip member When a highly rigid metal plate is used to form the member 102, the mounting workability when the rib clip member 102 is attached to the rib 104, and the rib clip member 102 and the harness holding member 101 are removed from the rib 104. There is a possibility that the dismantling workability of the machine may be lowered.

  In the conventional wire harness fixture described above, the rib clip member 102 is first attached to the rib 104, and then the harness holding member 101 is ribbed while the rib 104 and the rib clip member 102 are both inserted into the insertion hole 105. The configuration is attached to 104. That is, in order to fix the wire harness 100 to the bumper 103, two steps of attachment of the rib clip member 102 and attachment of the harness holding member 101 are required, resulting in poor work efficiency.

  In addition, in the conventional wire harness fixture described above, the rib clip member 102 uses a metal plate to ensure its rigidity with respect to the harness holding member 101 of the resin molded product. It is necessary to separate the holding member 101 and the rib clip member 102, which is inferior in recyclability.

  The present invention has been made in view of the above-described circumstances, and the object thereof is to increase the fixing strength to the mounted member, and the mounting workability to the mounted member and the dismantling workability with the mounted member. An object of the present invention is to provide a wire harness fixture which is excellent in recyclability and excellent in recyclability.

  In order to achieve the above object, the fixture of the present invention is characterized by the following (1) to (4).

(1) A fixture for fixing a wire harness to a member to be attached,
A pair of sandwiching pieces arranged to face each other with a gap, and a hinge connecting the intermediate portions of the pair of sandwiching pieces to each other,
A portion of the wire harness is accommodated between the base end portions of the pair of sandwiching pieces,
A locking claw protrudes from the inner surface of at least one of the tip portions of the pair of sandwiching pieces,
When the support piece projecting from the attached member is inserted between the tip portions of the pair of holding pieces, the pair of holding pieces is configured to increase the facing distance between the tip portions. A fixture that swings to the center and thereby holds a part of the wire harness accommodated between the base end portions between the base end portions.

  (2) A protrusion is provided on the inner surface of at least one of the base end portions of the pair of sandwiching pieces at a position closer to the base end than a part of the wire harness housed between the base end portions. The fixture according to (1), characterized in that:

  (3) The fixture according to (1) or (2), wherein the pair of sandwiching pieces is made of a material having a hardness higher than that of the material forming the support piece.

  (4) The fixture according to any one of (1) to (3), wherein the pair of sandwiching pieces and the hinge are integrally formed of a synthetic resin.

  According to the fixture having the configuration of (1) above, when the support piece projecting from the attached member is sandwiched between the distal end portions of the pair of sandwiching pieces, the pair of sandwiching pieces are located between the distal end portions. Is swung around the hinge so as to increase the distance between the opposing ends of the wire harness, whereby a part of the wire harness accommodated between the base end portions is sandwiched between the base end portions. That is, conventionally, a member that has been divided into a member for holding the wire harness and a member for fixing the holding member to the attached member is made into one member as an attachment tool. The attachment workability and the disassembly workability with the attached member are excellent. Further, since the holding of the wire harness by the fixture and the attachment of the fixture to the attached member can be performed in one step, the work efficiency when fixing the wire harness to the attached member is excellent.

  Furthermore, according to the fixture having the above-described configuration (1), the wire harness is clamped and compressed by the proximal end portions of the pair of sandwiching pieces, and the reaction force at that time is opposed between the distal end portions of the pair of sandwiching pieces. The pair of sandwiching pieces acts in a direction to swing around the hinge so as to narrow the interval. Therefore, the support piece of the attached member sandwiched between the tip portions of the pair of sandwich pieces is held by the tip portion, and the locking protrusion provided on the inner surface of the tip portion bites into the support piece. . Thereby, the support piece of a to-be-attached member can be firmly hold | maintained at the front-end | tip part of a pair of clamping piece, and the fixed strength to the to-be-attached member of a fixture can be improved.

  According to the fixture having the configuration of (2) above, the protrusion is provided at a position closer to the base end than a part of the wire harness housed between the base end portions on the inner surface of the base end portion of the pair of holding pieces. Therefore, it is possible to prevent the wire harness housed between the base end portions from being detached from the base end portions by the protrusions, and the work efficiency when fixing the wire harness to the attached member is excellent.

  According to the fixture having the configuration of the above (3), since the material forming the pair of clamping pieces is higher in hardness than the material forming the support piece, the locking claw can be securely bited into the support piece. . Thereby, the support piece of a to-be-attached member can be firmly hold | maintained at the front-end | tip part of a pair of clamping piece, and the fixed strength to the to-be-attached member of a fixture can be improved.

  According to the fixture having the configuration of (4) above, since the pair of sandwiching pieces and the hinge are integrally formed of synthetic resin, there is no need to separate the sandwiching pieces and the hinge after disassembly from the attached member, Excellent recyclability.

  Thus, according to the present invention, it is possible to increase the strength of fixing to a member to be attached, excellent workability for attachment to the member to be attached, dismantling workability with the member to be attached, and excellent recyclability. A harness fixture can be provided.

  Hereinafter, preferred embodiments of the fixture according to the present invention will be described in detail with reference to the drawings.

  1 is a perspective view of an embodiment of a fixture according to the present invention, FIG. 2 is a single perspective view of the fixture of FIG. 1, FIG. 3 is a sectional view taken along the line III-III in FIG. 2, and FIG. IV-IV cross-sectional view, FIG. 5 is a cross-sectional view of the fixture of FIG. 1 in which the wire harness is accommodated between the proximal ends, and FIG. 6 is a perspective view of the fixture of FIG. 7 is a sectional view taken along arrow VII-VII in FIG.

  As shown in FIG. 1, the wire harness 1 is fixed to a bumper 3 that is a member to be attached by a fixture 2. The bumper 3 is an integrally molded product made of, for example, synthetic resin, and a rectangular plate-like rib 4 as a support piece projects from the surface of the bumper 3.

  2 to 4, the fixture 2 includes a pair of sandwiching pieces 11 a and 11 b that are arranged to face each other with a gap, and a hinge 12 that connects these sandwiching pieces 11 a and 11 b to each other. . The pair of sandwiching pieces 11 a and 11 b and the hinge 12 are integrally formed of a synthetic resin having a hardness higher than that of the synthetic resin forming the rib 4 and the bumper 3.

  The sandwiching pieces 11a and 11b are formed in a rectangular plate shape. In the illustrated example, the long side has the same dimension as the width of the rib 4, and the fixture 2 is the length of the sandwiching pieces 11a and 11b. The side is attached to the bumper 3 so as to be substantially parallel to the edge of the rib 4. Thereafter, the direction along the short side of the sandwiching piece 11a (11b) is referred to as the front-rear direction for convenience, and the side close to the rib 4 of the pair of long sides of the sandwiching piece 11a (11b) is the front end (tip). Each part of the fixture 2 will be described with the other long side as the rear end (base end).

  Locking claws 13 having a substantially triangular pyramid shape project from the inner surface of the tip of the sandwiching piece 11a, that is, both side edges of the surface facing the sandwiching piece 11b. Although these locking claws 13 will be described in detail later, when the fixture 2 is attached to the bumper 3, the latching claws 13 bite into the rib 4 and prevent the fixture 2 from falling off the rib 4. In addition, these latching claws 13 may be provided on the inner surface of the sandwiching piece 11b, or may be provided on both inner surfaces of the sandwiching pieces 11a and 11b.

  The hinge 12 is formed in a thin plate shape extending from one side edge of the sandwiching piece 11a, 11b to the other side edge in parallel with the front end edge of the sandwiching piece 11a, 11b, and before and after the sandwiching piece 11a, 11b. The sandwiching pieces 11a and 11b are connected to each other by connecting to the inner surface of the middle portion in the direction. The sandwiching pieces 11 a and 11 b connected to each other by the hinge 12 can swing around the hinge 12 so as to widen or narrow the facing interval between the tip portions while elastically deforming the hinge 12.

  On the inner surface of the base end portion of the sandwiching pieces 11a and 11b, one of the sandwiching pieces 11a and 11b is parallel to the distal end edge of the sandwiching pieces 11a and 11b at a position adjacent to the base end side of the connection portion with the hinge 12. Concave grooves 14a and 14b extending from one side edge to the other side edge are respectively engraved, and a housing space 15 for accommodating a part of the wire harness 1 is defined by the concave grooves 14a and 14b and the hinge 12. Has been.

  Further, referring to FIG. 5, the wire harness 1 is housed in a housing space 15 defined between the proximal ends of the sandwiching pieces 11 a and 11 b. The surfaces of the concave grooves 14a and 14b that define the housing space 15 and the side surface of the hinge 12 that is continuous with the surfaces are curved in an arc shape in a cross section parallel to the front-rear direction, and the cylindrical shape of the wire harness 1 It is formed so as to substantially match the outer shape of. Thereby, the fixture 2 supports the outer peripheral surface of the wire harness 1 on the entire surfaces of the concave grooves 14 a and 14 b and the side surface of the hinge 12.

  On the inner surface of the base end portion of the sandwiching pieces 11a, 11b, a position adjacent to the base end side of the edge of the concave grooves 14a, 14b, that is, closer to the base end than the wire harness 1 housed in the housing space 15 A plurality of protrusions 16 are provided at the respective positions. As shown in FIG. 5, the interval between the protruding ends of the protrusions 16 and the inner surface of the sandwiching piece 11a or 11b is such that the wire harness 1 is housed in the housing space 15 and the proximal ends of the sandwiching pieces 11a and 11b. Is set so as to be smaller than the diameter of the wire harness 1 when the distance between the two is widest.

  A plurality of ribs 17 project from the outer surfaces of the sandwiching pieces 11a and 11b, and these ribs 17 extend from the leading edge to the proximal edge in the front-rear direction.

  Next, the fixing operation | work to the bumper 3 of the wire harness 1 using this fixture 2 is demonstrated.

  First, the wire harness 1 is inserted from between the base end edges of the sandwiching pieces 11a and 11b of the fixture 2, and is housed in the housing space 15 defined between the base end portions of the sandwiching pieces 11a and 11b. As the wire harness 1 is inserted, the sandwiching pieces 11 a and 11 b swing around the hinge 12 so as to widen the facing interval between the base end portions. As shown in FIG. 5, the distance between the projecting end of the protrusion 16 and the inner surface of the sandwiching piece 11 a or 11 b is such that the wire harness 1 is housed in the housing space 15 and the base ends of the sandwiching pieces 11 a and 11 b are opposed to each other. The distance is set to be smaller than the diameter of the wire harness 1 when the interval is widest. Therefore, the wire harness 1 housed in the housing space 15 is prevented from being detached from the housing space 15. Yes.

  As shown in FIG. 5, the facing interval between the tip portions of the sandwiching pieces 11 a and 11 b that are swung so as to widen the facing interval between the base end portions around the hinge 12 is narrowed. The thickness is less than. In this state, as shown in FIGS. 6 and 7, the fixture 2 is attached to the bumper 3 so that the rib 4 is inserted between the tip portions of the holding pieces 11 a and 11 b.

  As shown in FIGS. 6 and 7, as the rib 4 is sandwiched between the distal end portions of the sandwiching pieces 11 a and 11 b, the sandwiching pieces 11 a and 11 b increase the facing distance between the distal end portions around the hinge 12. Oscillate as follows. Thereby, the opposing space | interval between the base end parts of clamping piece 11a, 11b is narrowed, and the wire harness 1 accommodated in the accommodation space 15 is clamped by the base end part of clamping piece 11a, 11b. Here, the surfaces of the concave grooves 14a and 14b that define the accommodation space 15 and the side surfaces of the hinges 12 continuing to the surfaces are formed so as to substantially match the outer shape of the wire harness 1 as described above. Therefore, the load does not concentrate on a part of the sandwiched wire harness 1, thereby preventing the wire harness 1 from being damaged.

  The wire harness 1 clamped at the proximal end portions of the sandwiching pieces 11a and 11b is compressed, but the reaction force at that time causes the sandwiching pieces 11a and 11b to be hinged 12 so as to narrow the facing interval W between the distal end portions. The sandwiching pieces 11 a and 11 b are hardly bent by the plurality of ribs 17. Therefore, the rib 4 inserted between the front ends of the holding pieces 11a and 11b is held by the front ends. Here, since the sandwiching piece 11 a is formed of a synthetic resin having a hardness higher than that of the synthetic resin forming the rib 4, the locking protrusion 13 provided on the inner surface of the tip portion of the sandwiching piece 11 a is formed on the rib 4. It will definitely bite in. Thereby, the drop-off from the rib 4 of the fixture 2 is prevented.

  When removing the fixture 2 attached to the bumper 3 in this way from the bumper 3, for example, while pressing the proximal end portions of the holding pieces 11a and 11b to further compress the wire harness 1, the holding pieces 11a, The mounting tool 2 can be easily removed from the bumper 3 by pulling the mounting tool 2 rearward after widening the facing interval between the tip portions of 11b and releasing the engagement between the locking claws 13 and the ribs 4. .

  As described above, according to the fixture 2 of the present embodiment, when the rib 4 protruding from the bumper 3 is sandwiched between the tip portions of the pair of sandwiching pieces 11a and 11b, the pair of sandwiching pieces. 11a and 11b swing around the hinge 12 so as to increase the facing interval W between the distal end portions, thereby holding a part of the wire harness 1 accommodated between the proximal end portions between the proximal end portions. That is, conventionally, a member that has been divided into a member for holding the wire harness and a member for fixing the holding member to the member to be attached is a single member as the attachment 2, and the bumper 3 of the attachment 2 Excellent workability for attachment to the car and dismantling work with the bumper 3. Further, since the wire harness 1 can be held by the fixture 2 and the fixture 2 can be attached to the bumper 3 in one step, the work efficiency when the wire harness 1 is fixed to the bumper 3 is excellent.

  Furthermore, according to the fixture 2 of this embodiment, the wire harness 1 is clamped and compressed by the base end part of a pair of clamping piece 11a, 11b, and the reaction force in that case is a pair of clamping piece 11a, 11b. The pair of sandwiching pieces 11a and 11b act in a direction in which the pair of sandwiching pieces 11a and 11b is swung around the hinge 12 so as to reduce the facing interval W between the tip portions. Therefore, the rib 4 sandwiched between the distal end portions of the pair of sandwiching pieces 11a and 11b is sandwiched by the distal end portion, and the locking projection 13 provided on the inner surface of the distal end portion bites into the support piece. . Thereby, the rib 4 can be firmly held at the tip portions of the pair of sandwiching pieces 11a and 11b, and the fixing strength of the fixture 2 to the bumper 3 can be improved.

  Moreover, according to the fixture 2 of this embodiment, it is in the position nearer to the base end than a part of the wire harness 1 accommodated between the base end portions on the inner surface of the base end portions of the pair of sandwiching pieces 11a and 11b. Protrusions 16 are provided, and the wire harness 1 accommodated between the base end portions can be prevented from being detached from between the base end portions by the projections 16, and the wire harness 1 is fixed to the bumper 3. Excellent work efficiency.

  Moreover, according to the fixture 2 of this embodiment, since the material which forms a pair of clamping piece 11a, 11b is higher hardness than the material which forms the rib 4, the latching claw 13 bites into the rib 4 reliably. Can be made. Thereby, the rib 4 of the bumper 3 can be firmly held at the tip portions of the pair of sandwiching pieces 11a and 11b, and the fixing strength of the fixture 2 to the bumper 3 can be improved.

  Moreover, according to the fixture 2 of this embodiment, since a pair of clamping piece 11a, 11b and the hinge 12 are integrally molded by the synthetic resin, after disassembly with the bumper 3, these clamping piece 11a, 11b and hinge 12 There is no need for separation, and recyclability is excellent.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably.

It is a perspective view of one Embodiment of the fixture concerning the present invention. It is a single-piece | unit perspective view of the fixture of FIG. FIG. 3 is a cross-sectional view taken along line III-III in FIG. 2. FIG. 4 is a cross-sectional view taken along arrow IV-IV in FIG. 2. It is sectional drawing of the fixture of FIG. 1 which accommodated the wire harness between the base end parts. It is a perspective view of the fixture of FIG. 1 attached to the to-be-attached member. It is a VII-VII arrow sectional view in Drawing 6. It is a perspective view of the conventional fixture.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wire harness 2 Mounting tool 3 Bumper (attachment member)
4 ribs (support pieces)
11a Clamping piece 11b Clamping piece 12 Hinge 13 Locking claw 16 Projection

Claims (4)

A fixture for fixing the wire harness to the attached member,
A pair of sandwiching pieces arranged to face each other with a gap, and a hinge connecting the intermediate portions of the pair of sandwiching pieces to each other,
A portion of the wire harness is accommodated between the base end portions of the pair of sandwiching pieces,
A locking claw protrudes from the inner surface of at least one of the tip portions of the pair of sandwiching pieces,
When the support piece projecting from the attached member is inserted between the tip portions of the pair of holding pieces, the pair of holding pieces is configured to increase the facing distance between the tip portions. A fixture that swings to the center and thereby holds a part of the wire harness accommodated between the base end portions between the base end portions.   A protrusion is provided on the inner surface of at least one of the base end portions of the pair of sandwiching pieces at a position closer to the base end than a part of the wire harness accommodated between the base end portions. The fixture according to claim 1.   The fixture according to claim 1 or 2, wherein the pair of sandwiching pieces are formed of a material having a hardness higher than that of the material forming the support piece.   The fixture according to any one of claims 1 to 3, wherein the pair of sandwiching pieces and the hinge are integrally formed of a synthetic resin.

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