Clamp

Abstract

To provide a clamp capable of being stably fixed to an attachment member, and reducing a cost.SOLUTION: In a clamp 1 having a holding part 3 that holds an electric wire 101, and an anchor portion that is provided to an external surface of the holding part 3, and includes an elastic piece 31 that can be elastically deformed so as to be engaged to an attachment member 5, a plurality of projections 33 contacted to the attachment member so as to nip an elastic piece 31 and the attachment member to an outer surface of the holding part 3 is provided, and the plurality of projections 33 includes: a plurality of first projections 35 arranged onto a first straight line; and a plurality of second projections 37 that is arranged onto a second straight line that is parallel to the first straight line on a side opposite to each first projection 35 while nipping the anchor portion 5. Both of each first projection 35 and each second projection 37 become so that an arrangement position in the first and second straight lines becomes different.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a clamp. [Background technology]

[0002] Conventionally, a clamp is known that includes a band member as a holding part that holds an electric wire, and a locking member as an anchor part that is provided on the outer surface of the band member and has an elastic piece that engages with a mounting member (see Patent Document 1). In this clamp, the band member holds the electric wire by wrapping the band member around the electric wire. The locking member is fixed to the mounting member by inserting it through a hole formed in the mounting member and engaging the elastic piece around the hole. In this type of clamp, the band member holds the electric wire, and the locking member is fixed to the mounting member, thereby fixing the electric wire to the mounting member via the clamp. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 11-113143 Summary of the Invention [Problem to be solved by the invention]

[0004] In a clamp such as that disclosed in Patent Document 1, when the anchor portion is fixed to the mounting member, the mounting member is disposed between the anchor portion and the outer surface of the holding portion. A protruding member is provided on the outer surface of the holding portion to apply a predetermined biasing force to the surface opposite to the surface where the elastic piece of the mounting member engages. However, if a part such as an elastic piece is provided on the outer surface of the holding portion in addition to the anchor portion, the shape of the holding portion becomes complicated, resulting in high manufacturing costs.

[0005] The present invention has been made in view of the problems inherent in the conventional techniques, and an object of the present invention is to provide a clamp that can be stably fixed to a mounting member and can be made at low cost. [Means for solving the problem]

[0006] The clamp of this embodiment comprises a holding portion for holding an electric wire, and an anchor portion provided on the outer surface of the holding portion and having an elastically deformable elastic piece that engages with a mounting member, and the outer surface of the holding portion is provided with a plurality of protrusions that abut against the mounting member so as to sandwich the elastic piece and the mounting member, the plurality of protrusions including a plurality of first protrusions arranged on a first line and a plurality of second protrusions arranged on a second line parallel to the first line on the opposite side of the anchor portion to the first protrusions, and the first protrusions and the second protrusions are arranged at different positions on the first line and the second line. Effect of the Invention

[0007] According to the present invention, it is possible to provide a clamp that can be stably fixed to a mounting member and can be made at low cost. [Brief description of the drawings]

[0008] [Figure 1] FIG. 2 is a perspective view of the clamp according to the embodiment. [Diagram 2] 4 is a side view of the clamp according to the embodiment before the cover is attached to the base. FIG. [Diagram 3] FIG. 3 is a top view of FIG. 2. [Figure 4] FIG. 3 is a bottom view of FIG. 2. [Diagram 5] 3 is a side view of FIG. 2 as seen from the base portion side. [Figure 6] 3 is a side view of FIG. 2 as seen from the cover portion side. [Figure 7] FIG. 2 is a top view of the clamp according to the embodiment when it holds a thick electric wire. [Figure 8] FIG. 8 is a cross-sectional view taken along line VIII-VIII of FIG. 7. [Figure 9] 9 is a cross-sectional view taken along line IX-IX in FIG. 7. [Figure 10] FIG. 2 is a top view of the clamp according to the embodiment when it holds a thin electric wire. [Figure 11] 11 is a cross-sectional view taken along the line XI-XI of FIG. [Figure 12] FIG. 12 is a cross-sectional view taken along line XII-XII of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the clamp according to the present embodiment will be described in detail with reference to the drawings. Note that the dimensional ratios in the drawings are exaggerated for the convenience of explanation and may differ from the actual ratios.

[0010] As shown in Fig. 1, the clamp 1 according to this embodiment is applied, for example, to hold electric wires 101 of a wire harness (not shown) arranged on a panel (not shown) of a vehicle as a mounting member. The wire harness is provided with connectors (not shown) on both ends of the electric wires 101, which are electrically connected to electric components such as a power source or equipment mounted on the vehicle. The electric wires 101 are arranged in a predetermined shape between the electric components to prevent interference with surrounding components. For example, the clamp 1 is provided at a location where the electric wires 101 are bent or where the electric wires 101 are deflected, and the clamp 1 is fixed to the panel, thereby maintaining the arrangement shape of the electric wires 101 relative to the vehicle.

[0011] As shown in FIGS. 1 to 12, the clamp 1 includes a holding portion 3 and an anchor portion 5. The holding portion 3 and the anchor portion 5 are arranged in a substantially rectangular shape.

[0012] The holding portion 3 includes a base portion 7 and a cover portion 9 .

[0013] The base portion 7 is made of an insulating material such as synthetic resin. The base portion 7 is formed, for example, in the shape of a housing having a flat outer surface. The inner surface of the base portion 7 is curved so as to extend in the circumferential direction of the electric wire 101, and serves as an arrangement surface 11 on which the outer periphery of the electric wire 101 is arranged. A restricting portion 13 is provided at the center of the width direction of the arrangement surface 11, protruding inward from the arrangement surface 11 and extending in a curved shape in the circumferential direction of the electric wire 101 (the length direction of the arrangement surface 11). The restricting portion 13 abuts against the outer periphery of the electric wire 101 arranged on the arrangement surface 11 so as to bite into it. The abutment of the restricting portion 13 against the outer periphery of the electric wire 101 can restrict the clamp 1 from moving in the length direction of the electric wire 101. An opening 15 formed by penetrating the base portion 7 is provided at one end side of the restricting portion 13. The cover portion 9 can be inserted into the opening 15.

[0014] A locking piece 19 constituting the engagement portion 17 is provided on the opposite side of the regulating portion 13 across the opening 15 of the base portion 7. The locking piece 19 is formed of a single member whose base end side is continuous with the base portion 7, and is provided on the base portion 7 so as to be elastically deformable so that its free end is located on the arrangement surface 11 side. A pair of guide portions 21, 21 are provided on both sides of the locking piece 19 in the width direction. The pair of guide portions 21, 21 extend in a curved shape from the end of the length direction of the arrangement surface 11 to the opening 15. The distance between the pair of guide portions 21, 21 is set to be equal to or slightly larger than the width of the cover portion 9. The pair of guide portions 21, 21 guide the assembly of the cover portion 9, which is assembled to the base portion 7 via the engagement portion 17. By providing the guide portion 21 on the base portion 7, the engagement at the engagement portion 17 can be stabilized, and the cover portion 9 can be stably assembled to the base portion 7.

[0015] The cover part 9 is made of an insulating material such as synthetic resin. The cover part 9 is formed of a single member that is continuous with the base part 7 via a hinge 23, and is provided so as to be openable and closable with respect to the arrangement surface 11 of the base part 7. The cover part 9 has a width that allows it to be inserted between the opening 15 of the base part 7 and the pair of guide parts 21, 21, and is formed in a curved housing shape with an outer surface. The inner surface of the cover part 9 is provided with a pair of clamping parts 25, 25 that protrude inward and extend in a curved shape in the circumferential direction of the electric wire 101 (the length direction of the cover part 9). The pair of clamping parts 25, 25 are abutted against the outer circumferential surface of the electric wire 101 so as to bite into it when the cover part 9 is assembled to the base part 7. The abutment of the pair of clamping parts 25, 25 against the outer periphery of the electric wire 101 makes it possible to restrict the movement of the clamp 1 in the length direction of the electric wire 101.

[0016] A plurality of locking projections 27 constituting the engagement portion 17 are provided on the outer surface of the cover portion 9 so as to protrude outward. The plurality of locking projections 27 extend in the width direction of the cover portion 9, and are arranged in a plurality of positions in the length direction of the cover portion 9. The plurality of locking projections 27 are engaged with the locking pieces 19 when the cover portion 9 is assembled (closed) to the base portion 7. The assembled state (closed state) of the cover portion 9 to the base portion 7 is maintained by the engagement between the locking pieces 19 and the locking projections 27 in the engagement portion 17. By assembling the cover portion 9 to the base portion 7 via the engagement portion 17, the electric wire 101 is held by the holding portion 3, and the clamp 1 can be assembled to the outer circumference of the electric wire 101. The engagement portion 17 has a plurality of locking projections 27, and therefore can accommodate various electric wires 101 having different diameters by changing the locking projections 27 engaged with the locking pieces 19.

[0017] For example, as shown in Figs. 7 to 9, in the case of a thick electric wire 101, the locking projection 27 located on the tip side of the cover part 9 among the multiple locking projections 27 is engaged with the locking piece 19. As shown in Figs. 10 to 12, in the case of a thin electric wire 101, the locking projection 27 located on the hinge 23 side of the cover part 9 among the multiple locking projections 27 is engaged with the locking piece 19. By making the engagement position of the engagement part 17 changeable in accordance with the diameter of the electric wire 101, various electric wires 101 can be held by the holding part 3, and the versatility of the clamp 1 can be improved. An anchor part 5 is provided on the outer surface of the holding part 3.

[0018] The anchor portion 5 is formed of a single member that is continuous with the base portion 7 on the outer surface of the base portion 7 located opposite the hinge 23. The anchor portion 5 includes a base portion 29 and a pair of elastic pieces 31,31.

[0019] The base portion 29 is a member continuous with the base portion 7 and protrudes from the outer surface of the base portion 7 so as to taper outward. For example, the base portion 29 is inserted into a hole formed in the panel when the clamp 1 is attached to a vehicle panel serving as a mounting member. The protruding length of the base portion 29 is set to be longer than the thickness of the panel. Therefore, when the base portion 29 is inserted into the hole in the panel, the tip side of the base portion 29 is positioned to protrude from the hole.

[0020] The pair of elastic pieces 31, 31 are a member continuous with the base 29 from the tip side of the base 29, and extend inclined away from the base 29 toward the base portion 7, and are provided so as to be elastically deformable. When the base 29 is inserted into a hole in the panel, the pair of elastic pieces 31, 31 come into contact with the edge of the hole and are elastically deformed. When the base 29 is inserted through the hole in the panel, the pair of elastic pieces 31, 31 are restored to their original state on the back side of the panel opposite the holding portion 3. The restored pair of elastic pieces 31, 31 are engaged with the back side of the panel located around the hole. The engagement between the pair of elastic pieces 31, 31 and the back side of the panel prevents the base 29 from slipping out of the hole, and the clamp 1 is fixed to the panel. A plurality of (four in this example) protrusions 33 are provided on the outer surface of the holding portion 3 on which the anchor portion 5 is provided.

[0021] The multiple protrusions 33 are a member that is continuous with the base portion 7 from the outer surface of the base portion 7, and protrude outward in a hemispherical shape in the same direction as the base portion 29. The distance between the tip of the multiple protrusions 33 and the free end of the pair of elastic pieces 31, 31 is set to be shorter than the thickness of the panel. The multiple protrusions 33 are abutted against the front surface of the panel with the pair of elastic pieces 31, 31 engaged with the back surface of the panel. At this time, the pair of elastic pieces 31, 31 are elastically deformed and apply a biasing force to the panel. Therefore, the panel is sandwiched between the pair of elastic pieces 31, 31 and the multiple protrusions 33, so that the clamp 1 can be stably fixed to the panel. By making the portion that engages with the surface of the panel opposite to the surface where the elastic piece 31 engages the multiple protrusions 33, the shape of the holding portion 3 can be simplified and the manufacturing cost can be reduced.

[0022] The multiple protrusions 33 include multiple (here, two) first protrusions 35 and multiple (here, two) second protrusions 37. The multiple first protrusions 35 are arranged on a first straight line L1 on the outer surface of the base portion 7. The multiple second protrusions 37 are arranged on a second straight line L2 that is parallel to the first straight line L1 and is set on the opposite side of the anchor portion 5 from the first straight line L1 on the outer surface of the base portion 7. The first protrusions 35 and the second protrusions 37 are arranged at different positions on the first straight line L1 and the second straight line L2. That is, when viewed from a direction perpendicular to the first straight line L1 and the second straight line L2 (see FIG. 3), the first protrusions 35 and the second protrusions 37 are arranged so as not to overlap each other. By making the positions of the first protrusions 35 and the second protrusions 37 different, the multiple protrusions 33 can be efficiently distributed within a limited range of the outer surface of the base portion 7. Therefore, with the panel sandwiched between the elastic piece 31 and the plurality of protrusions 33, tilt of the clamp 1 relative to the panel can be effectively prevented.

[0023] Such a clamp 1 includes a holding portion 3 for holding an electric wire 101, and an anchor portion 5 having an elastic piece 31 that is provided on the outer surface of the holding portion 3 and is elastically deformable and engages with an attachment member. The outer surface of the holding portion 3 is provided with a plurality of protrusions 33 that come into contact with the attachment member so as to sandwich the elastic piece 31 and the attachment member. The plurality of protrusions 33 further includes a plurality of first protrusions 35 arranged on a first straight line L1, and a plurality of second protrusions 37 arranged on a second straight line L2 parallel to the first straight line L1 on the opposite side of the anchor portion 5 to the first protrusions 35. The first protrusions 35 and the second protrusions 37 are arranged at different positions on the first straight line L1 and the second straight line L2.

[0024] Since the mounting member is sandwiched between the elastic piece 31 and the multiple protrusions 33, the clamp 1 can be stably fixed to the mounting member. By providing the multiple protrusions 33 as the portion that engages with the mounting member on the opposite side to the elastic piece 31, the shape of the holding part 3 can be simplified, and manufacturing costs can be reduced. In addition, by differentiating the positions of the first protrusion 35 and the second protrusion 37, the multiple protrusions 33 can be efficiently distributed within the limited range of the outer surface of the holding part 3. Therefore, with the mounting member sandwiched between the elastic piece 31 and the multiple protrusions 33, tilting of the clamp 1 relative to the mounting member can be efficiently prevented.

[0025] Therefore, such a clamp 1 can be stably fixed to the mounting member, and the cost can be reduced.

[0026] The holding part 3 has a base part 7 having an anchor part 5 and a protrusion 33 provided on its outer surface and an outer periphery of the electric wire 101 disposed on its inner surface, and a cover part 9 having an outer periphery of the electric wire 101 disposed on its inner surface and assembled to the base part 7 via an engaging part 17 to hold the electric wire 101. The engaging part 17 is provided so that an engaging position can be changed in accordance with the diameter of the electric wire 101.

[0027] Therefore, by making the engagement position of the engagement portion 17 changeable in accordance with the diameter of the electric wire 101, various electric wires 101 can be held by the holding portion 3, thereby improving the versatility of the clamp 1.

[0028] In addition, the base portion 7 is provided with a guide portion 21 for guiding the installation of the cover portion 9.

[0029] Therefore, by providing the guide portion 21 on the base portion 7, the engagement at the engagement portion 17 can be stabilized, and the cover portion 9 can be assembled to the base portion 7 stably.

[0030] The holding portion 3 is provided with a restricting portion 13 that extends in the circumferential direction of the electric wire 101 and comes into contact with the outer periphery of the electric wire 101 .

[0031] Therefore, the movement of the clamp 1 in the length direction of the electric wire 101 can be restricted by the contact of the restricting portion 13 with the outer periphery of the electric wire 101 .

[0032] Although the present embodiment has been described above, the present embodiment is not limited to this, and various modifications are possible within the scope of the gist of the present embodiment.

[0033] For example, the number of the first projections and the number of the second projections is two, but this is not limiting, and the number of the first projections and the number of the second projections may be three or more.

[0034] Further, although a single electric wire is used, the present invention is not limited to this, and may be a bundle of electric wires in which a plurality of electric wires are bundled together.

[0035] Further, the mounting member is a vehicle panel, but is not limited thereto. For example, the mounting member may be a manufacturing jig used when manufacturing a wire harness, and the mounting member may be any member. [Explanation of symbols]

[0036] 1 Clamp 3 Holding part 5 Anchor section 7 Base 9 Cover 13 Regulatory Department 17 Engagement part 21 Guide section 31 Elastic piece 33 Protrusion 35 1st protrusion 37 Second protrusion 101 Electric wire L1 1st straight line L2 2nd straight line

Claims

1. A holding portion for holding an electric wire; An anchor portion provided on an outer surface of the holding portion and having an elastic piece that can be elastically deformed and engaged with an attachment member; Equipped with a plurality of protrusions are provided on an outer surface of the holding portion, the protrusions being adapted to come into contact with the mounting member so as to sandwich the elastic piece and the mounting member; The plurality of protrusions include a plurality of first protrusions arranged on a first straight line and a plurality of second protrusions arranged on a second straight line parallel to the first straight line on the opposite side of the anchor portion to the first protrusions, The clamp, wherein the first protrusion and the second protrusion are disposed at different positions on the first straight line and the second straight line.

2. the holding portion includes a base portion having an outer surface on which the anchor portion and the protrusion are provided and an inner surface on which an outer periphery of the electric wire is disposed, and a cover portion having an inner surface on which the outer periphery of the electric wire is disposed and assembled to the base portion via an engagement portion to hold the electric wire, The clamp according to claim 1 , wherein the engagement portion is provided so that an engagement position can be changed in accordance with a diameter of the electric wire.

3. 3. The clamp according to claim 2, wherein the base portion is provided with a guide portion for guiding the assembly of the cover portion.

4. The clamp according to claim 1 , wherein the holding portion is provided with a restricting portion that extends in a circumferential direction of the electric wire and abuts against an outer periphery of the electric wire.

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