JP2007157951A - Member mounting tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting tool for surely mounting a member such as harness on a substrate. <P>SOLUTION: The member mounting tool is configured in a way that a wire 16 is mounted on a clip 1 fitted to a clip mounting hole 21 of a substrate 20, and the member is tightly fixed onto the substrate 20 by the wire 16. At that time, a diameter enlargement 17 is provided at a tip end of the wire 16 such that a pair of left and right engagement pieces of the clip 1 are prevented from being compressed by the diameter enlargement 17 to restrain the clip 1 from coming off from the clip mounting hole 21 of the substrate 20. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a member fixture for attaching a member such as a harness to a substrate, for example.

Conventionally, in order to attach a harness or the like to a substrate, a configuration has been adopted in which a wire is soldered to the substrate and the harness is tightly bound by the wire, but the solder contains harmful substances and its use is restricted. Tend to.
Recently, a configuration using a clip as a fixing means instead of the solder fixing has been proposed (see, for example, Patent Documents 1 and 2). The clip is composed of a pair of left and right elastic locking pieces erected from the base.

JP 2004-129445 A JP 2005-261131 A

  The conventional clip has a problem in that the pair of left and right elastic locking pieces are easily deformed when attached to the substrate, and is easily disengaged from the clip attachment hole of the substrate.

As means for solving the above-described conventional problems, the present invention provides a pedestal 2 provided with a wire through-hole 6 and a fitting portion 5 fitted from the bottom surface to the clip mounting hole 21 of the substrate 20. The clip 1 is composed of a pair of left and right elastic locking pieces 3, 3, and a wire 16 attached to the clip 1. Locking step portions 13, 13, 11, 11 are formed at the intermediate portion, and a diameter-expanded portion 17 is formed at the tip of the wire 16 attached to the clip 1. The diameter is set larger than the gap between the inner locking step portions 13 and 13 of the pair of left and right locking pieces 3 and 3 of the clip 1 and the inner locking step portion 13 of the pair of left and right locking pieces 3 and 3. , 13 is set substantially equal to the gap between the lower portions, The outer width of the outer locking step portions 11, 11 of the locking pieces 3, 3 is set to be slightly larger than the inner width of the clip mounting hole 21 of the substrate 20, and the wire through hole 6 of the base 2 of the clip 1. The wire 16 is inserted between the pair of left and right locking pieces 3, 3, and the tip diameter-enlarged portion 17 of the wire 16 is below the inner locking step portions 13, 13 of the pair of left and right locking pieces 3, 3. A member mounting tool is provided in which the clip 1 is prevented from being deformed inwardly by the pair of left and right engaging pieces 3 and 3.
The base 2 of the clip 1 is made of an elastic member, and a notch 7 having a width slightly smaller than the diameter of the wire through hole 6 communicates with the wire through hole 6 of the base 2 from the outer periphery of the base 2. Preferably, means 18 for preventing mutual rotation of the wire 16 and the clip 1 and / or mutual rotation of the clip 1 and the clip mounting hole 21 of the substrate 20 is preferably provided. Further, the wire 16 is preferably provided with a resin coating 19.

[Action]
The wire 16 is inserted into the clip 1 from the wire through-hole 6 of the base 2 of the clip 1, and the tip enlarged diameter portion 17 of the wire 16 is inserted into the inner locking step of the pair of left and right locking pieces 3, 3 of the clip 1. The wire 16 is attached to the clip 1 by being positioned above the portions 13 and 13, and the clip 1 is fitted into a clip attachment hole 21 provided at a predetermined position of the substrate 20. In this state, the outer locking steps 11, 11 of the pair of left and right locking pieces 3, 3 of the clip 1 are locked to the lower peripheral edge of the clip mounting hole 21 of the substrate 20.
In this state, the wire 16 is further pushed into the clip 1, and the tip diameter enlarged portion 17 of the wire 16 reaches the lower side of the inner locking step portions 13, 13 of the pair of left and right locking pieces 3, 3 of the clip 1. Let me. Then, even if the pair of left and right engaging pieces 3, 3 of the clip 1 are deformed in the direction where they are close to each other (shrinkage deformation), the distal end enlarged diameter portion 17 of the wire 16 is formed on the inner surface of the engaging pieces 3, 3 It abuts to prevent the deformation. Further, the diameter-expanded portion 17 of the wire 16 is locked to the inner locking step portions 13 of the pair of left and right locking pieces 3, 3 of the clip 1, thereby preventing the wire 16 from coming out of the clip 1. Is done.

  The base 2 of the clip 1 is made of an elastic member, and a notch 7 having a width slightly smaller than the diameter of the wire through hole 6 communicates with the wire through hole 6 of the base 2 from the outer periphery of the base 2. Then, the wire 16 can be easily fitted into the wire through-hole 6 from the notch 7 of the base 2 of the clip 1 and inserted therethrough.

  When means for preventing mutual rotation of the wire 16 and the clip 1 and / or mutual rotation of the clip 1 and the clip mounting hole 21 of the substrate 20 is provided, the wire 16 is not displaced. Thus, the member can be firmly bound to the substrate 20.

  When the resin coating 19 is applied to the wire 16, the member can be strongly bound by the elasticity of the resin coating 19 without being damaged by the wire 16.

〔effect〕
Therefore, in the present invention, the member can be securely and easily attached to the substrate.

  The present invention will be described in detail below with reference to an embodiment shown in FIGS. The clip 1 shown in the figure is composed of a base 2 and a pair of left and right engaging pieces 3 and 3 erected from the base 2, and the clip 1 is integrally formed by injection molding of a thermoplastic resin. The thermoplastic resin as the material of the clip 1 is, for example, polypropylene, polystyrene, polyvinyl chloride (PVC), fluorine resin, acrylonitrile-butadiene-styrene resin (ABS), polyphenylene oxide (PPO or PPE), polyamide, polycarbonate, etc. A hard but elastic resin is used.

The pedestal 2 has a planar rounded square shape, and a planar rectangular fitting portion 5 having a reduced diameter via a jaw portion 4 is provided from the bottom surface of the main body of the pedestal 2. The fitting portion 5 is fitted into a clip mounting hole 21 of the substrate 20 described later.
A wire through hole 6 which is a round hole is provided at the center of the pedestal 2, and the width d ₆ slightly smaller than the diameter d ₅ of the wire through hole 6 is provided from the outer periphery of the pedestal 2 to the wire through hole _6. The notches 7 (d ₅ > d ₆ ) communicate with each other (see FIG. 8), and the wire through-hole 6 is provided with a pair of key grooves 8 and 8 in the vertical direction.

The pair of left and right engaging pieces 3, 3 standing from the pedestal 2 are composed of upper step portions 9, 9 and lower step portions 10, 10, and outer surfaces 9 A, 9 A of the upper step portions 9, 9 are formed on the pedestal 2. The fitting portion 5 is slightly inclined inward from the side surface, and the lower edge bulges outward to form outer locking step portions 11, 11. The upper surface of the outer locking step portions 11, 11 12 and 12 incline toward the outside. The outer width d ₂ of the outer locking step portions 11, 11 of the pair of left and right locking pieces 3, 3 is set slightly larger than the width d ₁ of the fitting portion 5 of the base ₂ (d ₂ > d ₁ ). (See FIG. 1).

  Inner locking step portions 13 and 13 protrude from the lower edge of the inner surface of the upper step portions 9 and 9, and the upper surfaces 14 and 14 of the inner locking step portions 13 and 13 are inclined inwardly to form a wedge surface. Is forming.

  The lower step portions 10 and 10 of the pair of left and right engaging pieces 3 and 3 have a side L shape, and the outer surfaces 15 and 15 are inclined inwardly to form a wedge surface.

A flat-shaped circular enlarged diameter portion 17 is formed by plastic processing at the tip of the wire 16 attached to the clip 1, and a pair of left and right keys 18, 18 are formed by plastic processing behind the tip of the wire 16. Is formed. The wire 16 is provided with a resin coating 19. The resin coating 19 is made of a resin such as polypropylene, polyethylene, polyvinyl chloride, or fluororesin. The diameter d _{5 of the} wire 16 is substantially equal to the diameter of the wire through hole 6 of the base 2 of the clip 1, and the diameter d ₄ of the enlarged diameter portion 17 is the inner locking step portion of the locking pieces 3, 3 of the clip 1. 13 and 13 is set to be substantially equal to the gap d ₃ between the lower steps 10 and 10 and larger than the gap width d ₇ between them.

In order to attach the wire 16 to the clip 1, the wire 16 is inserted into the wire through hole 6 of the base 2 of the clip 1 as shown in FIG. 5. At this time, the wire 16 is inserted into the wire through-hole 6 from the cutout portion 7 of the base 2 of the clip 1. When the wire 16 is passed through the cutout portion 7 of the base 2, as described above, d _{Since 5} > d ₆ , the pedestal 2 is deformed in the direction in which the width of the notch 7 is expanded (the width increasing direction).

In this manner, with the wire 16 attached to the clip 1, the pair of left and right engaging pieces 3, 3 of the clip 1 are passed through the clip attaching hole 21 of the substrate 20, and then the fitting portion 5 of the base 2 is attached. Fit. The clip mounting hole 21 of the substrate 20 is a planar quadrangle having substantially the same dimension (d ₁ ) as the planar quadrangle of the fitting portion 5 of the base 2 (see FIG. 6). When the pair of left and right engaging pieces 3, 3 are passed through the clip attaching hole 21, the outer surfaces 15, 15 which are the wedge surfaces of the lower steps 10, 10 of the engaging pieces 3, 3 are the clip attaching holes of the substrate 20. 21, the locking pieces 3 and 3 are elastically deformed (shrinkage deformation) in the direction of close contact with each other, and when fully fitted, the locking pieces 3 and 3 are elastic in their original state. The clip 1 is restored to the upper and lower edges of the clip mounting hole 21 of the substrate 20 between the jaw portion 4 of the base 2 and the upper surfaces 12 and 12 of the outer locking step portions 11 and 11 of the locking pieces 3 and 3. Is fixed to the mounting hole 21.

When the clip 1 is fitted and fixed in the clip mounting hole 21 of the substrate 20, the wire 16 is further inserted into the back side, and the tip enlarged diameter portion 17 of the wire 16 is connected to the pair of left and right engaging pieces 3 of the clip 1. 3 is reached between the lower steps 10 and 10. At this time, the enlarged diameter portion 17 of the wire 16 pushes and spreads the upper surfaces 14 and 14 which are the wedge surfaces of the inner locking step portions 13 and 13 of the locking pieces 3 and 3 to widen the locking pieces 3 and 3. It reaches the lower side of the inner locking step portions 13 and 13, that is, between the lower step portions 10 and 10 of the locking pieces 3 and 3 (d ₄ > d ₇ ). When the enlarged diameter portion 17 of the wire 16 reaches the lower side of the inner locking step portions 13 and 13 of the locking pieces 3 and 3, that is, between the lower step portions 10 and 10, the width of the locking pieces 3 and 3 is increased. The deformation is restored elastically.

In this way, the clip 1 to which the wire 16 is attached is attached to the clip attachment hole 21 of the substrate 20, but below the inner engagement step portions 13, 13 of the engagement pieces 3, 3 of the clip 1, that is, the lower step portion. and enlarged diameter portion 17 of the wire 16 is interposed between 10 and 10, because it is d ₄ ≒ d _7, mutual Aiyoru direction of the pair of left and right locking pieces 3, 3 of the clip 1 (Figure 7 arrow The deformation to (i), ie, the reduced width deformation, is prevented by the enlarged diameter portion 17 of the wire 16, and thus the clip 1 is securely attached to the attachment hole 21 of the substrate 20 without shifting. Further, as described above, d ₄ > d ₇ , and therefore, even if a force in the pulling direction is exerted on the wire 16, the enlarged diameter portion 17 of the wire 16 becomes the inner locking step portion of the locking pieces 3, 3. The wire 16 is caught on the lower surface of 13 and 13 and is prevented from coming off from the clip 1.

Further, as described above, the fitting portion 5 of the base 2 of the clip 1 has a planar shape quadrangle having the same dimension (d ₁ ) as the planar shape square of the clip mounting hole 21 of the substrate 20 (see FIG. 6). When the fitting portion 5 is fitted in the attachment hole 21, the clip 1 is prevented from rattling or rotating with respect to the attachment hole 21 of the substrate 20, and a pair of left and right keys of the wire 16 is further prevented. 18 and 18 engage with the key grooves 8 and 8 of the through hole 6 of the base 2 of the clip 1 (see FIG. 8), and the wire 16 is prevented from rotating with respect to the clip 1. The keys 18 and 18 of the wire 16 also serve to prevent the resin coating 19 from sliding to the tip side.

  After the clip 1 is attached to the clip attachment hole 21 of the substrate 20 in this way, a member such as a harness is bound and fixed on the substrate 20 by the wire 16 attached to the clip 1.

  Other than the above embodiment, the inner locking step portion of the locking piece may be formed in an arc-shaped side section instead of the wedge surface on the upper surface, and the fitting portion 5 of the pedestal 2 is a flat hexagonal or elliptical shape. Correspondingly, the mounting holes of the substrate may be hexagonal, elliptical or the like. Although the planar shape of the fitting portion 5 may be circular, in that case, rotation prevention with respect to the mounting hole of the base 2 cannot be performed. Further, as shown in FIG. 9, if the enlarged diameter portion 17A of the wire 16 is formed into a plane quadrangle, the left and right sides of the enlarged diameter portion 17A are aligned with the inner surfaces of the lower step portions 10 and 10 of the clip 1. Without providing a key and keyway, the wire is prevented from rotating relative to the clip. Further, as shown in FIG. 10, if the wire 16 has a planar shape, the wire through hole 6 has a planar shape, and each surface of the wire 16 is placed along the inner surface of the wire through hole 6, the key and the key groove Without the wire being prevented from rotating relative to the clip 1.

  The present invention can be used industrially because a member can be easily and firmly mounted on a substrate.

1 to 8 show an embodiment of the present invention.
Side view of wire and clip Front view of clip Top view of clip Bottom view of clip Side view of the wire attached to the clip and the clip attached to the clip mounting hole on the board Plan view of board clip mounting hole Side view with the wire pushed into the clip Clip plan view with wires attached Another embodiment of clip notch bottom view The top view of the clip of other examples

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Clip 2 Base 3 Locking piece 5 Insertion part 6 Wire through-hole 7 Notch part 8 Key groove 9 Upper step part 10 Lower step part 11 Outer locking step part 12 Upper surface 13 Inner locking step part 14 Upper surface 16 Wires 17, 17A Expanded part 18 key (mutual rotation prevention means)
19 Resin coating 20 Substrate 21 Clip mounting hole

Claims (4)

  A clip comprising a pedestal provided with a wire through hole and a fitting portion fitted from the bottom surface to the clip mounting hole of the substrate; and a pair of left and right elastic locking pieces erected from the pedestal; A clip is formed on the inner intermediate portion and the outer intermediate portion of the clip, and a stepped portion is formed on the tip of the wire attached to the clip. The diameter of the expanded diameter portion of the wire is set to be larger than the gap between the inner locking step portions of the pair of left and right locking pieces of the clip, and the lower portion from the inner locking step portion of the pair of left and right locking pieces The outer width of the outer locking step portion of the pair of left and right locking pieces is set to be slightly larger than the inner width of the clip mounting hole of the substrate, and the base of the clip The wire is inserted between the pair of left and right locking pieces from the wire through hole of It is characterized in that deformation of the clip to the inside of the pair of left and right locking pieces is prevented by allowing the diameter-expanded portion of the wire to reach the lower side of the inner locking step portion of the pair of left and right locking pieces. Member fixture.   2. The member according to claim 1, wherein the base of the clip is made of an elastic member, and a notch having a width slightly smaller than the diameter of the wire through-hole communicates with the wire through hole of the base from the outer periphery of the base. Mounting tool.   The member attachment according to claim 1 or 2, wherein means for preventing mutual rotation of the wire and the clip and / or mutual rotation of the clip and the clip attachment hole of the substrate is provided.   The member attachment according to any one of claims 1 to 3, wherein the wire is coated with a resin.

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