Rotation suppression member of clip

Abstract

To provide a rotation suppression member of a clip capable of suppressing rotation of a clip.SOLUTION: A rotation suppression member 2 of a clip 1 comprises a holding part 14 that holds insertion force of an anchor part 12, the rotation suppression member comprising: a through hole 23 through which the anchor part 12 of the clip 1 can penetrate; a base part 21 having a plurality of grooves 24 that are provided around the through hole 23 and into which the holding part 14 can be fitted; and a plurality of anti-rotation parts 22 extending from the periphery of the base part 21 in a direction perpendicular to a central axis CL of the through hole 23.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a clip rotation restricting member that restricts rotation of a clip that fastens electric wires, piping, etc., such as a harness in a vehicle. [Background technology]

[0002] Electric wires and pipes such as harnesses of a vehicle (hereinafter also referred to as electric wires) are fixed to a chassis frame, parts, etc. by using clips. For example, Patent Document 1 discloses a clip (10) having a flange portion (17). The clip (10) is configured such that the flange portion (17) is elastically deformed so that the clip is pressed against the vehicle body panel (20) and the locking step portions (15) of each of the blade portions (14) are locked to the periphery of the locking hole 21. Note that the reference characters given in Patent Document 1 are written in parentheses. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2012-102852 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, when wiring and routing electric wires, the clip may rotate and prevent the wires from being attached as intended. In this case, if the wires are attached hanging down, they may interfere with other components and cause damage to the wires or other components. As a result, the work of attaching the electric wires must be performed while suppressing the rotation of the clip, which can take a lot of time.

[0005] For example, although the flange portion (17) of Patent Document 1 presses the clip (10) against the vehicle body panel (20), this pressing force is not enough to prevent the clip (10) from rotating.

[0006] The present invention has been devised to solve such problems, and has an object to provide a clip rotation restricting member capable of restricting rotation of a clip. [Means for solving the problem]

[0007] The present invention has been made to solve at least part of the above problems, and can be realized in the following aspects or application examples. The clip rotation-prevention member of this application example is a clip rotation-prevention member having a retaining portion that retains the insertion force of the anchor portion, and is equipped with a through hole through which the anchor portion of the clip can pass, a base portion that is arranged around the through hole and has a plurality of grooves into which the retaining portion can fit, and a plurality of anti-rotation portions that extend from the periphery of the base portion perpendicular to the central axis of the through hole.

[0008] According to this application example, when the clip is attached, the anchor portion of the clip is inserted through the through hole of the base portion of the rotation restricting member, and the holding portion of the clip is fitted into one of the grooves, so that when a rotation force acts on the clip, the rotation force acting on the clip is transmitted from the holding portion of the clip to the rotation restricting member through the groove into which the holding portion is fitted. Since the rotation restricting member has a plurality of rotation stop portions, for example, one of the rotation stop portions abuts against a structure or fixed part around the clip, and the reaction force of the structure or part opposes the rotation force transmitted to the rotation restricting member, thereby restricting the rotation of the rotation restricting member. This also restricts the rotation of the clip. Effect of the Invention

[0009] According to this embodiment, rotation of the clip can be suppressed, and the clip can be attached as intended. [Brief description of the drawings]

[0010] [Figure 1]1(a) and 1(b) are views showing a rotation restricting member of a clip according to one embodiment, in which (a) is a front view and (b) is a partial cross-sectional view (a partial cross-sectional view taken along the line AA in FIG. 1(a)). [Diagram 2] 2(a) and 2(b) are front views of the insertion portion when it is open; (c) is a side view of the insertion portion when it is closed (viewed from the arrow B in FIG. 2(a)); and (D) is a top view of the insertion portion when it is closed (viewed from the arrow C in FIG. 2(a)). [Diagram 3] 3A and 3B are diagrams illustrating a state in which the rotation restricting member of the clip shown in FIG. 1 is used, in which (a) is a plan view and (b) is a cross-sectional view (a cross-sectional view taken along the arrow DD in FIG. 3A). [Figure 4] 4A and 4B are top views of a first example of use illustrating the function of the rotation suppressing member of the clip shown in FIG. 1, where (a) is a view when the clip auxiliary member is not used, and (b) is a view when the clip auxiliary member is used. [Diagram 5] 1A and 1B are top views of a second example of use illustrating the function of the rotation suppressing member of the clip shown in FIG. 1, where (a) is a view when the clip auxiliary member is not used, and (b) is a view when the clip auxiliary member is used. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] The embodiment of the present invention will be described with reference to the drawings. This embodiment is merely an example, and is not intended to exclude various modifications or application of techniques not specified in the following embodiment. Each configuration of this embodiment can be modified in various ways without departing from the spirit of the invention. In addition, they can be selected or combined as necessary.

[0012] [1. Equipment configuration] (1.1. Clip structure) First, with reference to FIG. 2, the clip 1 of this embodiment will be described. The clip 1 is formed of a relatively flexible, tough plastic such as polypropylene (PP) or polyamide (PA) that has excellent strength, impact resistance, and heat resistance, and as shown in Fig. 2(a), it is provided with an insertion portion 11 through which electric wires such as a vehicle harness or piping (electric wires) are inserted, an anchor portion 12 that is inserted into a mounting hole 30 (see Fig. 3(b)) in a body panel 3 of the vehicle, and a holding portion 14 that holds the insertion force of the anchor portion 12. The following description will be given assuming that the clip 1 is in a position with the insertion portion 11 facing up and the anchor portion 12 facing down, as shown in Fig. 2(a).

[0013] The insertion part 11 is ring-shaped, with an open bottom and a slightly thin top 11a, which allows it to easily deform elastically. This allows the clip 1 to be in either an open state as shown in Fig. 2(b) or a closed state as shown in Fig. 2(a). Two gripping arms 11b are provided to protrude from the inside of the insertion portion 11, and the lower inner peripheral surface 11c of the insertion portion 11 and the two gripping arms 11b grip the inserted electric wires.

[0014] The anchor portion 12 has a half-split structure as shown in Figures 2(b) and (c), and a first half 12a and a second half 12b extending from both lower parts on the open side of the insertion portion 11 are combined as the insertion portion 11 is closed, thereby forming an approximately cylindrical shape as shown in Figures 2(a), (c), and (d).

[0015] Engagement projections 13, 13 that appear and disappear due to elastic deformation are formed on each half portion 12a, 12b of the anchor portion 12. Each engagement projection 13 has a sliding surface 13a that gently inclines toward the axis of the anchor portion 12 toward the tip (lower end) side of the anchor portion 12, and a locking surface 13b that steeply inclines toward the upper side of the sliding surface 13a (the tip side of the anchor portion 12).

[0016] 3(b), when the anchor portion 12 is inserted into the mounting hole 30 of the vehicle body panel 3, both engagement protrusions 13, 13 elastically deform while their sliding surfaces 13a are in sliding contact with the inner peripheral surface 30a of the mounting hole 30, and penetrate into the mounting hole 30 while sinking toward the axis of the anchor portion 12 and reducing in diameter. When both engagement protrusions 13, 13 have finished penetrating, the engagement protrusions 13, 13 elastically deform to restore their original shape and expand in diameter. As a result, the engagement surfaces 13b come into contact with the inner wall surface 30b of the mounting hole 30, and the anchor portion 12 is engaged with the mounting hole 30.

[0017] The outer diameter of the anchor portion 12 other than the engaging protrusions 13, 13 is set to be slightly smaller than the inner diameter of the mounting hole 30. In addition, the outer diameter of the engaging protrusions 13, 13 is set to be larger than the inner diameter of the mounting hole 30 in its natural state, and to be slightly smaller than the inner diameter of the mounting hole 30 when contracted.

[0018] 2(a) and (b), the holding portion 14 is an arm-shaped portion that protrudes diagonally downward outward between the insertion portion 11 and the anchor portion 12, and is provided in a pair, including an arm portion 14a and an abutting end portion 14b at the tip of the arm portion 14a. When both engagement projections 13, 13 of the anchor portion 12 have finished penetrating into the holding portion 14, the arm portion 14a elastically deforms and the abutting end portion 14b abuts against the outer wall surface 30c of the mounting hole 30.

[0019] (1.2. Structure of rotation suppression member) The rotation restricting member 2 according to this embodiment is a plate-shaped member, and is made of a relatively flexible, tough, and excellent in strength, impact resistance, and heat resistance, such as polypropylene (PP) or polyamide (PA), similar to the clip 1. As shown in Fig. 1(a), the rotation restricting member 2 includes a base portion 21 formed in a square shape when viewed from the front, and a plurality of (four in this embodiment) anti-rotation portions 22 protruding outward from the periphery of the base portion 21.

[0020] The base portion 21 is provided at its center in front view with a through hole 23 through which the anchor portion 12 of the clip 1 can pass, and is provided with a plurality of grooves 24 arranged around the through hole 23 and into which the abutting end portion 14b of the holding portion 14 of the clip 1 can be fitted. In this embodiment, eight grooves 24 are provided around the through hole 23 at 45° angles, and are formed in a rice shape in front view. The grooves 24 are formed so as to penetrate the front and back of the plate-shaped rotation suppressing member 2. The inner diameter of the through hole 23 may be set to be slightly larger than the outer diameter of the engagement protrusions 13, 13 in their natural state, or may be set to be approximately the same as the mounting hole 30.

[0021] The anti-rotation portions 22 extend perpendicularly to the central axis CL of the through hole 23, and in this embodiment, the anti-rotation portions 22 are formed in a rod-like or band-like shape extending from the vicinity of each side of the square base portion 21 in a front view. Therefore, a total of four anti-rotation portions 22 are formed to match the four sides of the square. A shallow groove-like notch 25 is formed on one side (the back side in FIG. 1(a)) of the base portion (the boundary with the base portion 21 in this embodiment) of each anti-rotation portion 22, and as shown in FIG. 1(b), the anti-rotation portions 22 can be broken along the notch 25 by bending them toward the front side or the back side, and unnecessary anti-rotation portions 22 can be removed.

[0022] [2. Actions and Effects] Since the rotation restricting member 2 of the clip according to this embodiment is configured as described above, it can be used, for example, as shown in FIGS.

[0023] That is, when attaching the clip 1, the electric wires 4 (see FIG. 3) are inserted into the insertion portion 11 which is in an open state as shown in FIG. 2(b), and the insertion portion 11 is closed as shown in FIGS. 2(a), (c), and (d), and the first half 12a and the second half 12b of the anchor portion 12 are joined together. Next, the rotation suppressing member 2 is arranged from one side of the vehicle body panel 3 so that the axis of the through hole 23 coincides or nearly coincides with the axis of the mounting hole 30. Then, the anchor portion 12 of the clip 1 is inserted into the through hole 23 and the mounting hole 30 from one side of the vehicle body panel 3.

[0024] When both engagement projections 13, 13 have finished penetrating into the through hole 23 and the mounting hole 30, the engagement projections 13, 13 are restored to their original shape by elastic deformation and expand in diameter. As a result, the locking surface 13b comes into contact with the inner wall surface 30b of the mounting hole 30, and the anchor portion 12 is locked in the mounting hole 30. At this time, in the holding portion 14, the arm portion 14a elastically deforms and the abutting end portion 14b comes into contact with the outer wall surface 30c of the mounting hole 30. As a result, the locking surfaces 13b of the engagement projections 13, 13 and the abutting end portion 14b of the holding portion 14 grip the periphery of the mounting hole 30, and the clip 1 is fixed to the vehicle body panel 3.

[0025] At this time, the clip 1 and the rotation restricting member 2 are positioned relative to each other so that the abutting end 14b of each holding portion 14 fits into one of the multiple grooves 24 of the rotation restricting member 2. Furthermore, if it is desired to orient the electric wires 4 inserted through the insertion portion 11 of the clip 1 in a predetermined direction, but an external force is applied to the electric wires 4 so as to deviate from the predetermined direction, the clip 1 is positioned so that one of the anti-rotation portions 22 abuts against a structure or fixed part near the mounting hole 30 to resist the force in the deviation direction.

[0026] For example, as shown in FIG. 4(a), in the event that it is desired to orient the electric wires 4 in a specific direction indicated by the dashed line, but an external force is applied to the electric wires 4 in a direction that prevents this (see arrow R1), as shown in FIG. 4(b), the clip 1 and the rotation-prevention member 2 are positioned relative to each other so that one of the anti-rotation portions 22 abuts against parts 51, 52 fixed near the mounting hole 30, and the electric wires 4 are oriented in the specific direction indicated by the dashed line.

[0027] This makes it possible to prevent the electric wires 4 from deviating from a predetermined direction and rotating due to the reaction force (see arrow R1') of the parts 51 and 52, and allows the clip 1 and the electric wires 4 to be attached as intended. Therefore, for example, the risk of the electric wires 4 being attached sagging and interfering with other parts and damaging the electric wires 4 or other parts is reduced.

[0028] Furthermore, as shown in FIG. 5(a), in the event that it is desired to orient the electric wires 4 in a specific direction indicated by the dashed line, but an external force is applied to the electric wires 4 in a direction that prevents this (see arrow R2), as shown in FIG. 5(b), the clip 1 and the rotation-prevention member 2 are positioned relative to each other so that one of the anti-rotation portions 22 abuts against a structure 53 fixed near the mounting hole 30, and the electric wires 4 are oriented in the specific direction indicated by the dashed line.

[0029] In this case, the rotation restricting member 2 is used upside down, and the anti-rotation portions 22 that are unnecessary or that may interfere with other members are broken along the notches 25 and removed. This prevents the electric wires 4 from rotating away from the specified direction due to the reaction force of the structure 53 (see arrow R2'), allowing the clip 1 and the electric wires 4 to be attached as intended, and prevents the electric wires 4 from being attached drooping and interfering with other components, which could damage the electric wires 4 or other components.

[0030] [3.Other] In the above embodiment, clip 1 having a shape as shown in FIG. 2 is used, but the shape of the clip is not limited as long as it has an anchor portion to be inserted into a mounting hole in a panel to be fixed and a retaining portion to hold the insertion force of the anchor portion. In addition, in the above embodiment, the rotation suppression member 2 is formed in a plate shape with both the base portion 21 and the anti-rotation portion 22 being flush with each other, but this is not limited to a plate shape, at least except for the periphery of the through hole of the base portion 21.

[0031] The shape of the base portion, the shape and number of the grooves provided in the base portion, and the shape and number of the anti-rotation portions are not limited to those in the above embodiment. The clip and the rotation restricting member are also not limited to those in the above embodiment, and may be made of different materials. [Explanation of symbols]

[0032] 1 Clip 2 Rotation suppression member 3 Body Panel 4 Electric wires 11 Insertion part 12 Anchor section 11a Top of insertion portion 11 11b Grasping arm 11c: Lower inner peripheral surface of insertion portion 11 12 Anchor section 12a 1st half 12b Second half 13 Engagement protrusion 13a Sliding surface 13b Locking surface 14 Holding part 14a Arm section 14b Abutting end 21 Base 22 Anti-rotation part 23 Through hole 24 groove 25 notches 30 Mounting holes 30a: Inner surface of mounting hole 30 30b Inner wall surface of mounting hole 30 30c: Outer wall surface of mounting hole 30 51,52 parts 53 Structures CL: central axis of through hole 23

Claims

[Claim 1] A rotation suppressing member for a clip having a holding portion that holds the insertion force of an anchor portion, a base portion including a through hole through which the anchor portion of the clip can pass and a plurality of grooves arranged around the through hole and into which the holding portion can be fitted; a plurality of anti-rotation portions extending from the periphery of the base portion in a direction perpendicular to the central axis of the through hole; A member that prevents the clip from rotating.

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