JP5186288B2 - Wire harness retaining clip - Google Patents

Description

  The present invention relates to a wire harness holding clip, and more particularly to a wire harness holding clip corresponding to wire harnesses of various diameters.

The following Patent Document 1 discloses a technique related to the electric wire holding clip 1 as shown in FIG. The electric wire holding clip 1 is a component made of synthetic resin for holding a plurality of (a plurality of types) of electric wires 2, and a fixing portion 5 that is fitted and fixed to the through hole 4 of the attachment target member 3 The main body 6 is coupled to the fixed portion 5. The main body portion 6 is formed to be a substantially frame-shaped portion that accommodates the plurality of electric wires 2. Specifically, the bottom wall 7 in which the fixing portion 5 is integrated, the pair of side walls 8 and 9 that are coupled to both ends of the bottom wall 7 and extend upward, and the first that is coupled to the tip of the side wall 8. It has a claw part 10, a second claw part 11 coupled to the tip of the side wall 9, and a wire insertion gap 12 formed between the first claw part 10 and the second claw part 11. The inside of the main body 6 is an electric wire housing space 13. When the plurality of electric wires 2 are accommodated in the electric wire accommodating space 13, the first claw portion 10 and the second claw portion 11 are prevented from being detached.
JP 2007-242770 A

  By the way, in the above prior art, it is possible to accommodate a plurality of types of electric wires 2 within a range in which the electric wires can be inserted into the electric wire accommodating space 13. When only one of the harness and the wire harness having a small diameter is accommodated, the following problem occurs. That is, as the diameter of the wire harness becomes smaller, the amount of movement (with backlash) of the wire harness in the electric wire housing space 13 becomes larger. Therefore, when the electric wire holding clip 1 is applied to an object that generates vibration like an automobile. There is a risk that various problems may occur due to looseness.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a wire harness holding clip capable of holding a wire harness having various diameters in a state in which backlash is minimized. To do.

The wire harness holding clip of the present invention according to claim 1 made to solve the above-mentioned problem has a pair of side walls and a bottom wall connecting the pair of side walls,
Between the pair of side walls is a harness accommodating space for accommodating one wire harness having a diameter within the accommodation target range,
An elastic first contact holding piece coupled to one of the pair of side walls and inclined to partition the harness housing space serves as a first contact holding portion for holding the wire harness,
An elastic second contact holding piece coupled to the other of the pair of side walls and inclined to partition the harness housing space serves as a second contact holding portion for holding the wire harness,
Between the tip of the first contact holding piece and the tip of the second contact holding piece becomes a harness insertion part for inserting the wire harness into the harness housing space,
Said to deflect at thinner than one made with the side walls of and the insertion direction of the wire harness extends in a direction substantially perpendicular to protrude into the harness accommodating space said first contact holding piece and the second contact holding piece The third contact holding piece to be formed has a structure that becomes a third contact holding portion for holding the wire harness.

  According to the present invention having such characteristics, the wire harness is held by the three contact holding pieces elastically contacting the wire harness having various diameters. Since the three contact holding pieces have elasticity, the three contact holding pieces follow the movement of the wire harness, and as a result, the holding state is maintained well.

  A wire harness holding clip according to a second aspect of the present invention is the wire harness holding clip according to the first aspect, wherein the tip of the third contact holding piece is in sliding contact with the bottom wall. It is characterized by becoming.

  According to the present invention having such a feature, when the wire harness having a large diameter is held, the tip of the third contact holding piece comes into contact with the bottom wall in a state in which the bottom wall slides on the bottom wall. As a result, the third contact holding piece is supported and bent at two locations, and as a result, the force in the restoring direction of the third contact holding piece is increased and the holding state of the wire harness is well maintained.

  A wire harness holding clip according to a third aspect of the present invention is the wire harness holding clip according to the first or second aspect, wherein the tip of the first contact holding piece and the tip of the second contact holding piece are substantially in cross section. It is characterized by being formed into a bifurcated shape and serving as a lateral displacement prevention portion.

  According to the present invention having such a feature, the movement of the wire harness in the lateral displacement direction is restricted by the shape of each tip of the first contact holding piece and the second contact holding piece. The holding state of the wire harness is maintained well.

  According to the first aspect of the present invention, it is possible to hold the wire harnesses having various diameters in a state in which the backlash is minimized.

  According to the present invention described in claims 2 and 3, there is an effect that the holding state of the wire harness can be well maintained.

  Hereinafter, description will be given with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a wire harness holding clip of the present invention. FIG. 2 is an explanatory diagram of assembly when holding a wire harness with a small diameter, and FIG. 3 is an explanatory diagram of assembly when holding a wire harness with a large diameter.

  In FIG. 1, reference numeral 21 denotes a wire harness holding clip of the present invention. The wire harness holding clip 21 is a component made of synthetic resin, and is formed so as to be able to hold or position a wire harness routed in a moving body such as an automobile. The wire harness holding clip 21 minimizes rattling with respect to wire harnesses of various diameters (a wire harness 22a having a large diameter or a wire harness 22b having a small diameter, which is well known and schematically shown). It is formed so that it can be held in a heated state. First, the structure will be described.

  The wire harness holding clip 21 includes, for example, a fixing portion 23 that is fitted and fixed in a through hole of a vehicle body panel (not shown), and a main body portion 24 that is coupled to the fixing portion 23. The fixing portion 23 includes a support column 25 inserted through the through hole, a pair of locking blades 26 hooked on the through hole edge on the rear surface side of the vehicle body panel, and a pair of panel pressing portions 27 that press the surface of the vehicle body panel. (The form of the fixing portion 23 is an example. It is not particularly limited as long as it can be fixed to a member to be attached such as a vehicle body panel).

  The main body 24 includes a pair of opposing side walls 28 and 29 formed to have a desired width, and a bottom wall 30 that connects the pair of side walls 28 and 29. The main body 24 is formed in a substantially frame shape. In such a main body 24, a bottom wall extension 31 is formed so as to be continuous with the bottom wall 30. The bottom wall extension 31 is a portion that becomes a strip-shaped plate piece, and the fixing portion 23 is provided integrally (the arrangement of the fixing portion 23 is an example. The bottom wall extension 31 is formed. For example, it may be provided on the outer surface of the bottom wall 30).

  The pair of side walls 28 and 29 are arranged and formed to have a predetermined interval. The pair of side walls 28 and 29 are formed so as to be orthogonal to the bottom wall 30. Between the pair of side walls 28 and 29, a harness housing space 32 is formed for housing one wire harness having a diameter within the accommodation target range, that is, one wire harness 22a having a large diameter and one wire harness 22b having a small diameter. . In addition, the space | interval and height dimension of a pair of side walls 28 and 29 are set according to the wire harness 22a with a large diameter.

  The pair of side walls 28 and 29 have thick portions 33 and 34 and thin portions 35 and 36, respectively. The thick portions 33 and 34 are arranged on the bottom wall 30 side, and the thin portions 35 and 36 are arranged on the tip side. The elasticity of the pair of side walls 28 and 29 is adjusted by changing the wall thickness.

  A first contact holding piece 37 is coupled to the front end position of the side wall 28 on the left side in the drawing. The first contact holding piece 37 is formed so as to be inclined obliquely downward to the right and partition the harness housing space 32. The first contact holding piece 37 is cantilevered and elastic. In this embodiment, the first contact holding piece 37 is formed with the same thickness as the thin portion 35 of the side wall 28. The first contact holding piece 37 is formed as a first contact holding portion for holding the wire harness 22a having a large diameter and the wire harness 22b having a small diameter.

  A second contact holding piece 38 is coupled to the tip position of the side wall 29 on the right side in the drawing. The second contact holding piece 38 is formed so as to incline in the diagonally downward left direction and define the harness housing space 32. The second contact holding piece 38 is cantilevered and elastic. In this embodiment, the second contact holding piece 38 is formed with the same thickness as the thin portion 36 of the side wall 29. The second contact holding piece 38 is formed in a symmetrical shape with the first contact holding piece 37. The second contact holding piece 38 is formed as a second contact holding portion for holding the wire harness 22a having a large diameter and the wire harness 22b having a small diameter.

  A portion between the tip of the first contact holding piece 37 and the tip of the second contact holding piece 38 is formed as a harness insertion portion 39 for inserting the wire harness 22a having a large diameter or the wire harness 22b having a small diameter into the harness housing space 32. Has been.

  A third contact holding piece 40 is coupled to an intermediate position of the side wall 28 on the left side in the drawing. The third contact holding piece 40 extends in a direction substantially perpendicular to the insertion direction (downward direction in the figure) of the wire harness 22a having a large diameter and the wire harness 22b having a small diameter (from the left side to the right side in the figure). ) Is formed. The third contact holding piece 40 is formed so as to protrude into the harness housing space 32. The third contact holding piece 40 is cantilevered and elastic. In this embodiment, the third contact holding piece 40 is formed to be thinner and more flexible than the first contact holding piece 37 and the second contact holding piece 38. The third contact holding piece 40 is formed as a third contact holding portion for holding the wire harness 22a having a large diameter and the wire harness 22b having a small diameter. The third contact holding piece 40 may be coupled to the right side wall 29 instead of the side wall 28.

  A bottom wall slidable contact portion 41 is formed at the tip of the third contact holding piece 40 so as to be slidable against the inner surface of the bottom wall 30 when the third contact holding piece 40 is bent.

  The third contact holding piece 40 is formed such that its tip extends to the side wall 29 on the right side in the drawing. The third contact holding piece 40 is formed to have a sufficient length. The base end portion of the third contact holding piece 40 is coupled to the thick portion 33. In this embodiment, the height dimension of the third contact holding piece 40 is such a position that the third contact holding piece 40 bends slightly when holding the wire harness 22b having a small diameter.

  A space between the first contact holding piece 37 and the second contact holding piece 38 and the third contact holding piece 40 in the harness housing space 32 is a holding space 32a. Further, a space between the third contact holding piece 40 and the bottom wall 30 in the harness housing space 32 is a bending space 32 b of the third contact holding piece 40.

  Next, the operation of the wire harness holding clip 21 (the operation of the main body portion 24 related to assembly of the wire harness) will be described with reference to FIGS. 2 and 3.

  As shown in FIG. 2, when the wire harness 22b having a small diameter is moved downward from above the harness insertion portion 39, the operation relating to the assembly of the wire harness 22b having a small diameter is performed. The holding piece 38 is pushed by the outer surface of the wire harness 22b having a small diameter, whereby the first contact holding piece 37 and the second contact holding piece 38 are bent (refer to the arrows in the drawing for the bending direction). At this time, the first contact holding piece 37 and the second contact holding piece 38 bend in a state in which the distance between the tips is widened.

  When the wire harness 22b having a small diameter is further pushed in and moved downward, the wire harness 22b having a small diameter comes into contact with the third contact holding piece 40. The third contact holding piece 40 is bent by being pushed by the wire harness 22b having a small diameter.

  The bending of each part continues until the distance between the tips of the first contact holding piece 37 and the second contact holding piece 38 is increased by the diameter of the wire harness 22b having a small diameter. When the contact holding piece 38 moves in the direction to return to the original state, the third contact holding piece 40 also moves slightly upward due to this restoring force.

  As described above, the wire harness 22b having a small diameter is held by elastic contact of the three contact holding portions (37, 38, 40) as shown in FIG. Since the three contact holding pieces (37, 38, 40) follow the movement of the wire harness 22b having a small diameter, the holding state is maintained well.

  Here, let us consider a case where a lateral deviation occurs in the small-diameter wire harness 22b held in a good state by the three contact holding portions (37, 38, 40). For example, when it is laterally shifted to the left in FIG. 2C, it is held by the thin portion 35 of the side wall 28, the first contact holding piece 37, and the third contact holding piece 40. . On the other hand, when it is laterally shifted to the right, it is held by the thin portion 36 of the side wall 29, the second contact holding piece 38, and the third contact holding piece 40. Therefore, even when the lateral displacement occurs, the holding at the three locations is ensured, and thus it is possible to prevent backlash.

  In addition, let us consider a case where the wire harness 22b having a small diameter has fallen under the third contact holding piece 40 as shown in FIG. 2A (this cannot occur in normal assembly). In this case, the presence of the third contact holding piece 40 can suppress a certain amount of backlash, and does not particularly cause a problem.

  On the other hand, as shown in FIG. 3, when the wire harness 22a having a large diameter is moved downward from above the harness insertion portion 39, the operation relating to the assembly of the wire harness 22a having a large diameter is performed. The two-contact holding piece 38 is pushed by the outer surface of the wire harness 22a having a large diameter, and thereby the first contact holding piece 37 and the second contact holding piece 38 are greatly bent (see the arrow in the drawing for the bending direction). ). At this time, the first contact holding piece 37 and the second contact holding piece 38 bend in a state in which the distance between the tips is greatly expanded.

  When the wire harness 22a having a large diameter is further pushed in and moved downward, the wire harness 22a having a large diameter comes into contact with the third contact holding piece 40. The third contact holding piece 40 is greatly bent by being pushed by the wire harness 22a having a large diameter. The third contact holding piece 40 is greatly bent to such a state that the bottom wall sliding contact portion 41 at the tip end is in sliding contact with the inner surface of the bottom wall 30.

  The bending of each part continues until the distance between the tips of the first contact holding piece 37 and the second contact holding piece 38 is increased by the diameter of the wire harness 22a having a large diameter. When the contact holding piece 38 moves in a direction to return to the original state, the third contact holding piece 40 also pushes the wire harness 22a having a large diameter upward slightly by this restoring force.

  As described above, the wire harness 22a having a large diameter is held by the elastic contact of the three contact holding portions (37, 38, 40) as shown in FIG. Since the three contact holding pieces (37, 38, 40) follow the movement of the wire harness 22a having a large diameter, the holding state is favorably maintained.

  According to the present invention, rattling is minimized with respect to wire harnesses of various diameters (a wire harness 22a having a large diameter, a wire harness 22b having a small diameter, or a wire harness in the middle of these diameters). Can be held.

  Subsequently, a modification will be described with reference to FIGS. 4 and 5. 4A and 4B are diagrams when the wire harness 22b having a small diameter is held. FIG. 4A is a diagram of the wire harness holding clip 21 of FIG. 1, and FIG. 5 is a view in the case of holding a wire harness 22a having a large diameter, (a) is a view of the wire harness holding clip 21 in FIG. 1, and (b) is a view of a modified example.

  As shown in FIGS. 4A and 5A, when the wire harness 22b having a small diameter or the wire harness 22a having a large diameter is held, the wire harness 22b is held by contact at three locations. On the other hand, as shown in FIG. 4B and FIG. 5B, the tip portions of the first contact holding piece 37 and the second contact holding piece 38 are formed in a substantially bifurcated cross section to prevent a lateral deviation prevention portion 42. As a result, the formation of the lateral displacement prevention portion 42 increases the number of contacts to 5 locations as a whole, so that a structure in which lateral displacement is more difficult to occur can be achieved (naturally, the holding state is further improved).

  In FIG. 4B, the amount of deflection of the third contact holding piece 40 can be reduced by forming the lateral displacement prevention portion 42. This is because lateral displacement is prevented. Therefore, for this reason, the height dimension of the third contact holding piece 40 can be set slightly lower (in the figure, the height dimension is lower than that in FIG. 4A). .

  Subsequently, a comparative example will be described with reference to FIGS. 6 and 7. FIG. 6 is an assembly explanatory diagram of a comparative example in which the wire harness 22a having a small diameter is held. (A) is a diagram before assembly, (b) is a diagram in the middle of assembly, and (c) is a diagram after assembly. is there. FIG. 7 is an assembly explanatory diagram of a comparative example in the case of holding a wire harness 22a having a large diameter, (a) is a diagram before assembly, (b) is a diagram in the middle of assembly, and (c) is a diagram after assembly. FIG.

  The holding clip 51 as a comparative example differs from the above-described wire harness holding clip 21 (see FIGS. 1 to 3) only in the third contact holding piece 52. The inclination angle of the third contact holding piece 52 is larger than that of the third contact holding piece 40 (the third contact holding piece 52 is set to have a large inclination angle so as to extend obliquely upward). .

  When the inclination angle is increased as in the third contact holding piece 52, when the wire harness 22b having a small diameter is held, a lateral shift may occur as shown in FIG. On the other hand, when holding the wire harness 22a having a large diameter, as shown in FIG. 7, the amount of bending becomes large, and as a result, a load is applied to the root of the third contact holding piece 52 (stress). Will concentrate). Therefore, it can be said that the arrangement of the third contact holding piece 40 is preferable as shown in FIGS. 1 to 3 (there is no problem if it is inclined slightly upward).

  In addition, the present invention can of course be modified in various ways within the scope not changing the gist of the present invention.

  As can be seen from the above structure and illustration, the wire harness holding clip 21 does not have a complicated structure, so the mold structure also does not become complicated (a simple split structure that does not require a slide mold). Therefore, the mold workability is good and the structure contributes to cost).

It is a perspective view which shows one Embodiment of the wire harness holding clip of this invention. It is assembly explanatory drawing in the case of holding a wire harness with a small diameter, (a) is a diagram before assembly, (b) is a diagram in the middle of assembly, and (c) is a diagram after assembly. It is assembly explanatory drawing in the case of holding a wire harness having a large diameter, (a) is a diagram before assembly, (b) is a diagram in the middle of assembly, and (c) is a diagram after assembly. It is a figure which shows the wire harness holding clip of FIG. 1 and this modification (the figure in the case of holding a wire harness with a small diameter), (a) is a figure of the wire harness holding clip of FIG. 1, (b) is a deformation | transformation. It is an example figure. It is a figure which shows the wire harness holding clip of FIG. 1 and this modification (the figure in the case of holding a wire harness with a large diameter), (a) is a figure of the wire harness holding clip of FIG. 1, (b) is a deformation | transformation. It is an example figure. It is a figure of a comparative example, and is an assembling explanatory view in the case of holding a wire harness with a small diameter, (a) is a figure before assembling, (b) is a figure in the middle of assembling, (c) is a figure after assembling. It is. It is a figure of a comparative example, and is an assembly explanatory view in the case of holding a wire harness having a large diameter, (a) is a figure before assembling, (b) is a figure in the middle of assembling, (c) is a figure after assembling. It is. It is a figure of the electric wire holding clip of a prior art example, (a) is a perspective view, (b) is a perspective view of the state which accommodated and hold | maintained the electric wire.

Explanation of symbols

DESCRIPTION OF SYMBOLS 21 Wire harness holding clip 22a Wire harness with a large diameter 22b Wire harness with a small diameter 23 Fixing part 24 Body part 25 Support | pillar 26 Locking blade 27 Panel pressing part 28, 29 Side wall 30 Bottom wall 31 Bottom wall extension part 32 Harness accommodating space 33 , 34 Thick part 35, 36 Thin part 37 First contact holding piece 38 Second contact holding piece 39 Harness insertion part 40 Third contact holding piece 41 Bottom wall sliding contact part 42 Side shift prevention part

Claims (3)

While having a pair of side walls and a bottom wall connecting the pair of side walls,
Between the pair of side walls is a harness accommodating space for accommodating one wire harness having a diameter within the accommodation target range,
An elastic first contact holding piece coupled to one of the pair of side walls and inclined to partition the harness housing space serves as a first contact holding portion for holding the wire harness,
An elastic second contact holding piece coupled to the other of the pair of side walls and inclined to partition the harness housing space serves as a second contact holding portion for holding the wire harness,
Between the tip of the first contact holding piece and the tip of the second contact holding piece becomes a harness insertion part for inserting the wire harness into the harness housing space,
Said to deflect at thinner than one made with the side walls of and the insertion direction of the wire harness extends in a direction substantially perpendicular to protrude into the harness accommodating space said first contact holding piece and the second contact holding piece A wire harness holding clip, wherein the formed third contact holding piece is a third contact holding portion for holding the wire harness. In the wire harness holding clip according to claim 1,
The wire harness holding clip, wherein the tip of the third contact holding piece is a bottom wall sliding contact portion capable of sliding contact with the bottom wall. In the wire harness holding clip according to claim 1 or claim 2,
A wire harness holding clip, wherein a tip of the first contact holding piece and a tip of the second contact holding piece are formed in a substantially bifurcated cross section to form a lateral displacement preventing portion.

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