JP6519511B2 - Wire harness fixing structure - Google Patents

Description

  The present invention relates to a wire harness fixing structure for fixing a wire harness to a vehicle.

  A wire harness fixing structure for fixing a wire harness to a vehicle is known. For example, Patent Document 1 describes a wire harness fixing structure for fixing a wire harness to a vehicle.

  The wire harness fixing structure described in Patent Document 1 includes a clamp attached to a plate-like member of a vehicle body and a holder for holding the wire harness. And a clamp is formed from the flat metal plate which has spring elasticity, and has a clamping part and an anchor mounting base. The holding portion is formed to be bent in a substantially U-shape to hold the plate-like member. The anchor mounting table is formed to be bent in a substantially wedge shape and to abut on the plate-like member. A main body portion and an anchor portion are formed in the holder, and in a state where the wire harness is held by the main body portion, the wire harness is fixed by connecting the anchor portion to the anchor mounting base.

Unexamined-Japanese-Patent No. 2004-222393

  By the way, as in the wire harness fixing structure described in Patent Document 1, for a member that can not be bolted, it is conceivable to fix by sandwiching the bracket by a bracket, for example, when fixing a bracket to a rod-like fixing member. Since the detent is insufficient, there is a concern that rotational displacement may occur in which the bracket is rotated relative to the fixing member and displaced due to factors such as vibration. Further, in the structure in which the rod-like fixing member is sandwiched between the flat surface of the bracket, there is a possibility that the position of the rotation stopping point with respect to the point serving as the axis may not be constant. is there. For this reason, the distance between the point serving as the axis of rotation and the point serving as the detent may be largely dispersed individually, and when the distance is short, the force to resist the rotational input may be small, which may cause rotational misalignment. .

  Moreover, when it respond | corresponds to the stabilizer with which a shape differs, there also exists a problem which will also increase the kind of bracket according to the shape of each kind of stabilizer. As described above, in the conventional wire harness fixing structure, there is room for improvement from the viewpoint of being able to cope with a plurality of stabilizers having different shapes while effectively suppressing the rotational shift of the bracket for fixing the wire harness to the rod portion. was there.

  An object of the present invention is to provide a technology of a wire harness fixing structure capable of effectively suppressing a rotational shift of a bracket for fixing a wire harness to a rod portion of a stabilizer.

In order to solve the above problems, a wire harness fixing structure according to an aspect of the present invention includes a rod-like portion which is a rod-like portion of a stabilizer provided in a vehicle, and a bracket for fixing the wire harness to the rod-like portion. . A first flat portion and a second flat portion are provided on the outer peripheral surface of the rod-like portion so as to sandwich the central axis of the rod-like portion, and the bracket includes a first contact member and a second contact member. A plurality of first protrusions facing the rod-like portion are formed at predetermined positions on the first contact member, and second protrusions that contact the second flat surface portion are formed at predetermined positions on the second contact member. When at least two of the plurality of first protrusions contact the first flat portion , the bracket contacts the first and second flat portions at three or more points surrounding the rod-like portion .

  According to this aspect, at least two of the plurality of first protrusions abut the first flat surface portion, and the second protrusion of the second contact member abuts the second flat surface portion, so that rotation of the bracket relative to the rod portion of the stabilizer Deviation can be effectively suppressed.

  ADVANTAGE OF THE INVENTION According to this invention, the technique of the wire harness fixing structure which can suppress effectively the rotational shift of the bracket for fixing the wire harness with respect to the rod-shaped part of a stabilizer can be provided.

It is a perspective view of a wire harness fixed structure concerning an embodiment. It is an end elevation of the principal part of the wire harness fixing structure of FIG. It is a perspective view of the rod-shaped part of a stabilizer. It is a perspective view of a bracket. It is a front view which shows the principal part of a bracket. It is an end elevation in the state where a stick-shaped part is located in the top of a bracket. It is an end elevation in the state where a stick-shaped part is located in the lowest side of a bracket. It is an end elevation of the state where a rod part of another shape is located in the top of a bracket.

  Hereinafter, the present invention will be described based on preferred embodiments with reference to the drawings. The same or equivalent constituent elements and members shown in the respective drawings are denoted by the same reference numerals, and redundant description will be omitted as appropriate. In addition, dimensions of members in each drawing are shown appropriately enlarged or reduced for easy understanding. In each drawing, a part of members which are not important in describing the embodiment is omitted and displayed.

  FIG. 1 is a perspective view of a wire harness fixing structure 100 according to an embodiment. As shown in FIG. 1, the wire harness fixing structure 100 according to the embodiment of the present invention mainly includes a rod portion 80 and a bracket 10. The bracket 10 is fixed to the rod-like portion 80, and supports a wire harness (not shown) including a plurality of wires bound to a first wire support portion 20 and a second wire support portion 22 described later. FIG. 2: is the end view which cut | disconnected the principal part of the wire harness fixing structure 100 which concerns on embodiment perpendicularly | vertically along an AA. That is, FIG. 2 shows the longitudinal cross section of the rod-like portion 80 and the front of the bracket 10, and the same applies to the following end views. The following description is based on the XYZ orthogonal coordinate system shown in FIG. The direction X corresponds to horizontal horizontal direction, the direction Y corresponds to horizontal horizontal direction, and the direction Z corresponds to vertical vertical direction. The direction Y and the direction Z are orthogonal to the direction X, respectively. The direction X may be described as the left direction or the right direction, the direction Y as the front direction or the rear direction, and the direction Z as the upper direction or the lower direction. In FIG. 2, the right side is referred to as the right, and the left side is referred to as the left as viewed from the front of the wire harness fixing structure 100.

(Bar portion)
FIG. 3 is a perspective view of the rod-like portion 80 of the stabilizer 78. As shown in FIG. The rod-like portion 80 is a rod-like portion of the stabilizer 78 connecting the left and right suspensions of the vehicle. The rod-like portion 80 extends, for example, in the width direction of the vehicle at the lower portion of the vehicle. In rod portion 80, a central axis is an axis connecting the intersection point of bisector Q of upper and lower range Lz of vertical cross section 80a and bisector P of left and right range Lx cut in a plane perpendicular to the extending direction of rod portion 80 Write M. The vertical cross section 80 a of the rod-like portion 80 may be vertically symmetrical with respect to the bisector Q, and may be formed symmetrically with respect to the bisector P. A first flat portion 82 and a second flat portion 84 provided opposite to each other are provided on the outer peripheral surface of the rod portion 80. The first flat portion 82 and the second flat portion 84 are provided to sandwich the central axis M. The first flat portion 82 and the second flat portion 84 may extend in the vertical direction perpendicular to the central axis M and in the front-rear direction parallel to the central axis M. For example, when the rod-like portion 80 is arranged such that the central axis M extends in the direction along the Y-axis, the first flat portion 82 and the second flat portion 84 extend in the direction along the Z-axis Good. The bracket 10 is fixed to the rod-like portion 80 by the bracket 10 holding the first flat portion 82 and the second flat portion 84.

(bracket)
FIG. 4 is a perspective view of the bracket 10. The bracket 10 is a member for fixing the wire harness to the rod-like portion 80. The bracket 10 mainly includes a first abutment member 12 and a second abutment member 14, an arm portion 16, a first wire support portion 20, and a second wire support portion 22. The first contact member 12 is a substantially flat member including the first side surface 12 a facing the first flat surface 82. The second contact member 14 is a substantially flat member including a second side surface 14 a facing the second flat surface 84. The arm portion 16 is an arm-like member projecting from the second contact member 14, and the projecting portion 17 extending in the direction away from the rod portion 80 and the projecting end of the projecting portion 17 along the extending direction of the rod portion 80 And extending laterally extending portion 18. The projecting portion 17 and the lateral extending portion 18 are separately formed and coupled. The first wire support portion 20 is provided at a position close to the protruding portion 17 side of the lateral extension portion 18, and the second wire support portion 22 is provided at the tip of the lateral extension portion 18.

  The first wire support portion 20 and the second wire support portion 22 are respectively provided with a hollow cylindrical hollow portion 20a and a hollow portion 22a which are curled into a cylindrical shape from a flat plate material. The first wire support portion 20 supports the wire harness by passing the wire harness through the hollow portion 20a. The second wire support 22 supports the wire harness by passing another wire harness through the hollow portion 22a. The first contact member 12 may be formed, for example, from a metal plate such as a steel plate by bending using a press die. The respective portions of the second contact member 14 may be formed by being bent from a metal plate such as a steel plate by a press die, for example. The laterally extending portion 18, the first wire support portion 20, and the second wire support portion 22 may be integrally formed. The wire support is not limited to two. One or more wire supports may be provided.

(First contact member)
FIG. 5 is a front view showing the periphery of the first contact member 12 and the second contact member 14 of the bracket 10. On the first contact member 12, a plurality of first protrusions 11 opposed to the rod-like portion 80 are formed at predetermined positions. On the second contact member 14, a second projection 9 that contacts the second flat portion 84 is formed at a predetermined position. The first contact member 12 mainly includes a first side surface portion 12a, a plurality of first protrusions 11, a first engaging portion 12f, a first lower surface portion 12b, and a first fixing portion 12d. The first side surface portion 12 a is a flat portion facing the side surface including the first flat surface portion 82 of the rod-like portion 80. The first side surface portion 12 a extends in the vertical direction (Z-axis direction). The upper and lower range of the first side surface portion 12 a is formed larger than the upper and lower range of the rod-like portion 80. A plurality of first protrusions 11 are provided in a region facing the side surface of the rod-like portion 80 of the first side surface portion 12 a. The plurality of first protrusions 11 respectively project substantially perpendicularly from the first side surface portion 12 a in the direction (right direction) on the rod-like portion 80 side, and can be in contact with the first flat portion 82 as protrusions 11 a, protrusions 11 b, and protrusions 11 c. , Protrusion 11 d. The protrusions 11 a, 11 b, 11 c, 11 d are arranged such that at least two of the protrusions abut on the first flat portion 82. The arrangement of the protrusions 11a, 11b, 11c and 11d will be described later.

  The first engaging portion 12 f is a flat plate-like portion continuously provided on the upper side of the first side surface portion 12 a. The first engagement portion 12 f is provided with a first engagement hole 12 g penetrating in the left and right direction. A second engagement portion 14f of a second contact member 14 described later engages with the first engagement hole 12g. The first engagement hole 12g and the second engagement portion 14f constitute a hinge which is a fulcrum for rotatably supporting the first contact member 12 on the second contact member 14. The first lower surface portion 12 b is a flat portion extending from the lower side of the first side surface portion 12 a to the right. The first lower surface portion 12 b faces the lower side of the rod portion 80.

  The first fixing portion 12d is a flat portion extending downward from the right side of the first lower surface portion 12b. The first fixing portion 12d is provided with a first bolt hole 12e penetrating substantially leftward and rightward. The first bolt hole 12 e is overlapped with a second bolt hole 14 e of a second contact member 14 described later. The first fixing portion 12d is fixed to the second fixing portion 14d by tightening a nut (not shown) into a bolt (not shown) inserted into the first bolt hole 12e and the second bolt hole 14e. That is, the first contact member 12 is engaged with the second contact by fixing the first engagement portion 12f to the second engagement portion 14f and fixing the first fixed portion 12d to the second fixed portion 14d. It is supported at upper and lower portions with respect to the member 14.

(Second contact member)
The second contact member 14 includes a second side surface portion 14a, a second protrusion 9, a second upper surface portion 14c, a second engaging portion 14f, a second lower surface portion 14b, and a second fixing portion 14d. Mainly includes. The second side surface portion 14 a has a substantially flat shape facing the side surface including the second flat surface portion 84 of the rod-like portion 80. The second side surface portion 14a is a flat plate-like portion extending in the vertical direction substantially in parallel with the first side surface portion 12a. The upper and lower range of the second side surface portion 14a is larger than the upper and lower range of the rod portion 80, and is formed substantially equal to the upper and lower range of the first side surface portion 12a. A second protrusion 9 is provided in a region facing the side surface of the rod-like portion 80 of the second side surface portion 14a. The second protrusion 9 protrudes substantially perpendicularly from the second side surface portion 14 a in the direction (left direction) on the side of the rod portion 80 and is provided to be able to abut on the second flat surface portion 84. The second projection 9 is provided, for example, in the middle (for example, near the center) of the upper and lower range of the second side surface portion 14 a so as to abut on the second flat surface portion 84.

  The second upper surface portion 14c is a flat plate-like portion extending from the upper side to the left side of the second side surface portion 14a. The second upper surface portion 14 c faces the upper side of the rod portion 80. The second upper surface portion 14c is provided substantially in parallel with the second lower surface portion 14b and the first lower surface portion 12b. The second engaging portion 14f is a portion provided continuously on the left side of the second upper surface portion 14c. The second engaging portion 14 f is formed by curl bending in a state where the flat portion is inserted into the first engaging hole 12 g. As described above, the first engagement hole 12g and the second engagement portion 14f constitute a hinge that rotatably supports the first contact member 12 on the second contact member 14.

  The second lower surface portion 14 b is a flat plate-like portion extending from the lower side of the second side surface portion 14 a to the left side. The second lower surface portion 14 b faces the lower side of the rod portion 80. The second lower surface portion 14b is provided substantially in parallel with the second upper surface portion 14c. The second upper surface portion 14c, the second side surface portion 14a, and the second lower surface portion 14b are integrally formed in an angular reverse C shape. The second fixed portion 14d is a flat plate-like portion extending downward from the left side of the second lower surface portion 14b. The second fixing portion 14d is provided with a second bolt hole 14e penetrating substantially leftward and rightward. The second bolt holes 14 e are overlapped with second bolt holes 14 e of the second contact member 14 described later. By inserting a bolt (not shown) into the second bolt hole 14e and the first bolt hole 12e and tightening a nut (not shown), the second fixing portion 14d is fixed to the first fixing portion 12d.

(Go part)
Between the first contact member 12 and the second contact member 14, a surrounding portion 10 a for surrounding the rod-like portion 80 is provided. The surrounding portion 10a can hold the rod-like portion 80 between the upper end 10b and the lower end 10c. In other words, the rod-like portion 80 is held by the surrounding portion 10a at an arbitrary position between the upper end 10b and the lower end 10c of the surrounding portion 10a. The surrounding portion 10a has a substantially rectangular shape formed by the first side surface portion 12a, the first lower surface portion 12b, the second side surface portion 14a, the second lower surface portion 14b, and the second upper surface portion 14c.

(Protrusion)
Next, the arrangement of the protrusions 11a, 11b, 11c, and 11d will be described. When the bracket is configured to be sandwiched between rod-like members, it is desirable to take measures to prevent rotational displacement of the bracket with respect to the rod-like members. Therefore, in the wire harness fixing structure 100 according to the embodiment, a plurality of first protrusions 11 facing the rod-like portion 80 of the stabilizer 78 are formed on the first contact member 12 at predetermined positions. The second projections 9 abutting on the second flat portion 84 are formed at predetermined positions, and at least two of the plurality of first projections 11 are arranged to abut on the first flat portion 82. With this configuration, the bracket 10 abuts on the flat portion of the rod portion 80 at three or more points surrounding the rod portion 80, so that rotational displacement of the bracket 10 with respect to the rod portion 80 can be effectively suppressed.

  FIG. 6 is an end view of the rod-like portion 80 positioned on the uppermost side of the surrounding portion 10a. In the state of FIG. 6, the upper surface of the rod-like portion 80 abuts on the second upper surface portion 14 c (= upper end 10 b) of the second contact member 14. In this state, the protrusions 11 a and 11 b disposed on the upper side abut on the first flat surface portion 82, and the second protrusion 9 abuts on the second flat surface portion 84. Hereinafter, an example of a specific arrangement of the protrusions 11a, 11b, 11c, and 11d will be described.

First, conditions under which the projection 11 a at the uppermost position can contact the first flat portion 82 will be described. Assuming that the upper and lower widths (dimensions in the Z-axis direction) of the rod-like portion 80 are A, and the upper and lower widths (dimensions in the Z-axis direction) of the first flat portion 82 are a, from the upper end 10b of the surrounding portion 10a to the protrusion 11a Assuming that the distance in the vertical direction (the distance in the Z-axis direction) is P1, the protrusion 11a at the uppermost position abuts on the first plane portion 82 when P1 satisfies Expression 1 (see also FIG. 5).
P1> (A-a) / 2 (Equation 1)

Next, conditions under which the uppermost projection 11a and the second uppermost projection 11b can abut on the first flat portion 82 will be described. Assuming that the distance between the protrusions 11a and 11b in the vertical direction and the distance between the protrusions 11c and 11d in the vertical direction are P, if P is less than half of a, which is the upper and lower dimension of the first flat portion 82, in FIG. As shown, the protrusion 11 a and the protrusion 11 b abut on the upper and lower range of the first flat portion 82. That is, when P satisfies the condition of Formula 2, at least the protrusion 11a at the uppermost position and the second protrusion 11b from the top abut on the first flat portion 82 (see also FIG. 5).
P <a / 2 (Equation 2)
In addition, each space | interval of the up-down direction of several 1st protrusion 11 may be set equally, and each space | interval in this case may be set equal to P. FIG. That is, the vertical intervals of the protrusions 11a, 11b, 11c, and 11d may be set equal (see also FIG. 5).

Next, conditions under which the second projection 9 can abut on the second flat portion 84 will be described. When the second projection 9 is provided at the center of the upper and lower range of the second side surface portion 14a (= the center of the surrounding portion 10a), the distance between the upper end 10b and the lower end 10c of the surrounding portion 10a is L. The distance from the second projection 9 to the second upper surface portion 14c is expressed as L / 2. When the distance is larger than the dimension in the Z-axis direction from the upper end of the rod portion 80 to the upper end of the second flat portion 84, the second projection 9 abuts on the second flat portion 84. That is, when the condition of Formula 3 is satisfied, the second projection 9 abuts on the second flat portion 84 (see also FIG. 5).
a / 2> (L−A) / 2 (Equation 3)

  FIG. 7 is an end view of the state in which the rod portion 80 is located at the lowermost side. In the state of FIG. 7, the lower surface of the rod-like portion 80 abuts on the second lower surface portion 14 b (= lower end 10 c) of the second contact member 14. In this case, the distance in the vertical direction (the distance in the Z-axis direction) from the second lower surface portion 14b to the lowermost projection 11d is also P1, and the inequality shown in Equation 1, Equation 2 and Equation 3 is satisfied. The lower protrusion 11d and the second lower protrusion 11c abut the first flat portion 82, and the second protrusion 9 abuts the second flat portion 84 (see also FIG. 5).

  As described above, when the plurality of first protrusions 11 are arranged in the vertical direction and these satisfy the expressions 1, 2 and 3, at least two of the plurality of first protrusions 11 of the first contact member 12 are The second projection 9 of the second contact member 14 abuts on the second plane portion 84 in contact with the first plane portion 82. The shapes of the rod-like portion 80 and the bracket 10 can be set by taking into account the manufacturing errors in Equations 1, 2 and 3.

  From the viewpoint of manufacturing control, it is desirable that one type of bracket can be attached to a plurality of stabilizers having different shapes. Therefore, in the wire harness fixing structure 100 according to the embodiment, the bracket 10 can be attached to the rod portion of another shape within a range satisfying the expressions 1, 2 and 3. FIG. 8 is an end view showing the rod portion 280 of another shape positioned on the uppermost side of the bracket 10. The rod-like portion 280 has a larger shape in the vertical direction than the rod-like portion 80. In particular, when the wire harness fixing structure 100 includes the rod-like portion 280, the wire harness fixing structure 100b is described. As shown in FIG. 8, also in the wire harness fixing structure 100 b, at least two of the plurality of first protrusions 11 of the first contact member 12 contact the first flat portion 82, and the second contact member 14 The two projections 9 abut on the second flat portion 84. Even when the rod portion 280 of another shape is positioned at the lowermost side of the bracket 10, at least two of the plurality of first protrusions 11 of the first contact member 12 are the same as in the description of the rod portion 80. The second projection 9 of the second contact member 14 abuts on the second plane portion 84 while abutting on the first plane portion 82.

  Next, features of the wire harness fixing structure 100 configured as described above will be described. At least two of the plurality of first protrusions 11 abut the first flat surface 82 and the second protrusions 9 of the second contact member 14 abut the second flat surface 84, so that the bracket 10 rotates relative to the rod 80 Deviation can be effectively suppressed. That is, the rotation stopping mechanism is constituted by one protrusion of the first contact member 12 serving as a shaft during rotation and the other protrusion of the first contact member 12 serving as a rotation stop with respect to the protrusion of the second contact member 14 Contact points can be set clearly. For this reason, it is possible to stably secure the distance between the point serving as the rotation axis and the point serving as the rotation prevention, and to suppress the decrease in the force that resists the rotation input. Further, by devising the arrangement of the plurality of first projections 11, it becomes possible to cope with a plurality of stabilizers having different shapes. Furthermore, since the rotation stopping mechanism can be configured by a small number of members, it is advantageous in terms of the manufacturing cost and productivity of the wire harness fixing structure.

  The above has been described based on the embodiment of the present invention. It is to be understood by those skilled in the art that these embodiments are exemplifications, and that various modifications and alterations are possible within the scope of the claims of the present invention, and such variations and modifications are within the scope of the claims of the present invention. It is understood. Accordingly, the descriptions and drawings herein are to be considered as illustrative and not restrictive.

  In the drawings used for the description, the cross sections of some members are hatched in order to clarify the relationship of the members, but the hatching does not limit the material or material of these members.

  Reference Signs List 100 wire harness fixing structure, 9 second projection, 10 bracket, 10a surrounding portion, 11 first projection, 12 first abutting member, 14 second abutting member, 16 arm portion, 17 projecting portion, 18 laterally extending portion , 20 first wire support, 22 second wire support, 78 stabilizer, 80 bar, 82 first flat, 84 second flat.

Claims (1)

A rod-shaped portion which is a rod-shaped portion of a stabilizer provided in a vehicle;
A bracket for fixing a wire harness to the rod portion;
Equipped with
A first flat surface portion and a second flat surface portion are provided on the outer peripheral surface of the rod-shaped portion so as to sandwich the central axis of the rod-shaped portion,
The bracket includes a first abutment member and a second abutment member,
A plurality of first protrusions facing the rod-like portion are formed at predetermined positions on the first contact member,
The second contact member is provided at a predetermined position with a second protrusion that contacts the second flat surface portion.
When at least two of the plurality of first protrusions contact the first flat portion, the bracket contacts the first and second flat portions at three or more points surrounding the rod-like portion. Wire harness fixing structure to be featured.

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