JP2009207233A - Clamp for wire harness - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To easily arrange a wire harness even in a small space irrespective of the plate thickness of a panel and the size of a locking hole, without modifying the panel. <P>SOLUTION: This clamp 1 comprises: a column support 2 insertable into a locking hole 21 of a panel 20; a leg 3 integrally formed at the column support 2; an anchor 4 whose tip 4a is connected to the tip of the column support 2 to move a base end plate 9 along the column support 2; recesses and protrusions 6, 11 which regulate the movement of the base end plate 9 in contact with the panel 20; and a harness fixing part 5 which is continuously formed at the base end plate 9, and can be fixed to the wire harness W. After the column support 2 is inserted into the locking hole 21 until the insertion is regulated by the leg 3, the base end plate 9 is moved to contact with the panel 20, and the anchor 4 is bent outward, thus fixing the anchor 4 to the locking hole 21 while preventing removal thereof. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a wire harness clamp used for arranging a wire harness for an automobile.

When an automotive wire harness is disposed on a vehicle body, a wire harness clamp (hereinafter simply referred to as “clamp”) provided at a predetermined interval along the wire harness is used. For example, as shown in Patent Document 1, this clamp is wound around a wire harness and inserted into a band insertion locking portion below a locking head that is fitted and locked in a locking hole provided in a panel of a vehicle body. A winding band type provided with a wearing band is well known. That is, the locking head is inserted and locked in the locking hole of the panel, the winding band is wound around the wire harness, and the winding band is inserted and fixed to the band insertion locking portion.
However, in this wrapping band type, the thickness of the panel that can be attached and the size of the locking hole are specified, and if the thickness is different, a clamp having a locking head corresponding to the thickness is required.
Therefore, in Patent Document 2, the locking head is a conical wedge-shaped locking head in which a claw locking portion is provided around the periphery in a stepwise manner, while a claw locking portion is provided on the inner side of the locking hole of the vehicle body. Even if the panel thickness of the panel or the size of the locking hole is changed, the amount of insertion of the wedge-shaped locking head can be reduced by providing a locking member with a pair of opposed locking pieces that project engaging locking claws. The invention which can be shared by changing is disclosed.

JP-A-8-149663 Japanese Utility Model Publication No. 6-37676

  However, in the clamp of Patent Document 2, since the axial dimension of the wedge-shaped locking head is large, the distance between the panel and the wire harness becomes large in a fixed state, and it is difficult to employ in a narrow space. In addition, since it is necessary to provide a locking member on the panel side, the number of parts is increased, and an operation for attaching the locking member to the panel is also required, so that workability related to the arrangement of the wire harness is lowered. .

  Therefore, the present invention provides a clamp capable of easily arranging a wire harness even in a narrow space without adding a hand to the panel side, as well as being able to cope with the difference in panel thickness and the size of the locking hole. It is intended to do.

In order to achieve the above object, the invention according to claim 1 is provided with a support column that can be inserted into the locking hole and the support column, and the support column is in contact with the panel while penetrating the locking hole. A leg portion that regulates insertion of the base and a base that is provided in parallel with the post, and the tip is coupled to the tip of the post, while the base end is movable along the post and cannot be inserted into the locking hole. An anchor portion that can be bent outward by movement to the base, and a restricting means that is provided between the support column and the anchor portion and restricts the movement of the base end while the base end is in contact with the panel and the anchor portion is bent. A harness fixing part that is connected to the base end of the anchor part and can be fixed to the wire harness, and the support part is inserted into the locking hole together with the anchor part, and the anchor part is inserted at a position where insertion is restricted by the leg part. Move the base end until it touches the panel, By bending the anchor portion on the side opposite to the side, and is characterized in that fixed in latched condition passes through the anchor portion to the locking hole.
According to a second aspect of the present invention, in the configuration of the first aspect, in order to increase the reliability at the time of attachment to the panel, the anchor portion is provided so as to sandwich the support column from the front end side, and the inner surface of the folded front end is It is combined with the front end of the support column, and has a substantially U shape that bends outward on the left and right sides of the support column by moving the base end toward the front end side.
According to a third aspect of the present invention, in the configuration of the first or second aspect, the anchor portion can be easily bent outward so that the anchor portion can be reliably bent outward when the proximal end is moved. A thin-walled portion is formed.
According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, in order to form the restricting means with a simple structure, the restricting means are provided on the opposing surfaces of the support column and the anchor portion, respectively. The concavo-convex parts are engaged with each other.

According to the first aspect of the present invention, it is possible to cope with a difference in the panel thickness and the size of the locking hole. In particular, the installation to the panel is completed simply by inserting the clamp post into the locking hole and pushing the base end, so there is no need to touch the panel and the wiring harness can be easily installed even in tight spaces And workability is excellent.
According to the second aspect of the present invention, in addition to the effect of the first aspect, the anchor portions are expanded on both sides of the column to be prevented from coming off, and the reliability at the time of mounting to the panel is increased.
According to the third aspect of the invention, in addition to the effect of the first or second aspect, the formation of the thin portion ensures that the anchor portion is bent outwardly when the proximal end moves.
According to the fourth aspect of the invention, in addition to the effect of any one of the first to third aspects, the restricting means can be formed with a simple structure by employing the uneven portion.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing an example of a clamp according to the present invention. This clamp 1 is a synthetic resin molded article, and is connected to a support column 2, a leg 3 provided integrally with the support column 2, and the support column 2. Anchor portion 4 and a harness fixing portion 5 which is connected to the anchor portion 4 and can be fixed to the wire harness.
First, the column 2 is a shaft-like body that can be inserted into a locking hole formed in the panel of the vehicle body, and an uneven portion 6 formed by projecting ring-shaped ridges at equal intervals in the axial direction on the outer periphery of the intermediate portion. Is formed.
The leg portion 3 has a U-shape having a pair of parallel contact portions 7 and 7 shorter than the support column 2, and the base end 2 a of the support column 2 is connected to the center of the contact portions 7 and 7. The whole, including the shape of a mountain.

Next, the anchor portion 4 is a substantially U-shaped belt body that is provided so as to sandwich the support column 2 from the tip, and whose intermediate portions 8 and 8 on both sides are parallel to the support column 2. Combined with the tip. The base end of the anchor portion 4 is orthogonal to the intermediate portions 8 and 8 and becomes a base end plate 9 larger than the locking hole, and the column 2 is passed through a notch 10 formed on the end edge of the base end plate 9. Yes.
In addition, on the inner surfaces of the intermediate portions 8 and 8, uneven portions 11 that can be engaged with the uneven portions 6 of the support column 2 are formed by protruding the protrusions in the width direction at equal intervals along the longitudinal direction. On the other hand, the intermediate portions 8 and 8 are formed with thin portions 12 that are easily bent outward by grooves formed in the width direction on the outer surface.
On the other hand, the harness fixing portion 5 includes a rectangular tube 13 fixed to an end portion of the proximal end plate 9 of the anchor portion 4 opposite to the notch 10 and a tie band 14 inserted through the rectangular tube 13. As shown in FIG. 2, the wire harness can be fixed to the base end plate 9 by winding and fixing the tie band 14 around the wire harness W.

When the wire harness is attached using the clamp 1 configured as described above, the wire harness W is first fixed to the base end plate 9 of the anchor portion 4 via the harness fixing portion 5 as shown in FIG. In this manner, the tip of the support column 2 is inserted together with the anchor portion 4 into the locking hole 21 formed in the panel 20 of the vehicle body, and is pushed in as it is until the contact portions 7 and 7 of the leg portion 3 are in contact with the panel 20.
Next, when the anchor portion 4 is pushed into the locking hole 21 side by further pressing the wire harness W from here, the contact portions 7 and 7 of the leg portion 3 are in contact with the panel 20. The base end plate 9 moves to the panel 20 side along the column 2 without changing the position. Then, in the anchor portion 4, the inner surface of the tip 4a is coupled to the support column 2 and does not move, so that the intermediate portions 8, 8 are bent outward at the position of the thin portion 12, as shown in FIG. Thus, the anchor portion 4 is expanded on the opposite side of the panel 20. When the base end plate 9 is moved, the concavo-convex portions 6 and 11 are brought into contact with each other between the support column 2 and the intermediate portion 8 to generate resistance. The middle portions 8 and 8 are allowed to move while being repeatedly engaged and disengaged by the elasticity of the strip.

When the base end plate 9 comes into contact with the panel 20, as shown in FIG. 5B, the anchor portion 4 is completely expanded to prevent the panel 20 from coming off. It becomes the appearance to hold. In this state, since the concave and convex portions 6 and 11 are engaged with each other between the support column 2 and the intermediate portions 8 and 8 to restrict mutual movement, a force of a degree when the base plate 9 is pushed in at the time of attachment is applied. As long as there is not, the support | pillar 2 and the base end plate 9 do not move. Therefore, the wire harness W is attached to the panel 20 through the clamp 1 without rattling. In particular, when the base end plate 9 abuts against the panel 20, the wire harness W fixed to the base end plate 9 is disposed in a state of being close to the panel 20.
Moreover, even if the plate thickness of the panel 20 and the size of the locking hole 21 are different, it can be coped with by changing the protruding amount of the support column 2 from the panel 20 and the expanding amount of the anchor portion 4. The retaining due to is maintained in the same way.

  Thus, according to the clamp 1 of the said form, the support | pillar 2 which can be inserted in the latching hole 21, and the support | pillar 2 are integrally provided, and the panel 2 contact | abuts with the panel 20 in the state which penetrated the latching hole 21. The leg 3 for restricting the insertion of the column 2 and the parallel to the column 2, the tip 4a is coupled to the tip of the column 2, while the base plate 9 is movable along the column 2 and the locking hole 21 is provided between the anchor portion 4 that can not be inserted into the base plate 21 and can be bent outward by the movement of the base end plate 9 toward the front end, and the support plate 2 and the anchor portion 4. Restricting means (uneven portions 6 and 11) for restricting the movement of the base end plate 9 in a state where the anchor portion 4 is bent in contact with the base end plate 9 and the harness fixing portion 5 that can be fixed to the wire harness W. And the support column 2 is inserted into the locking hole 21 together with the anchor portion 4, and the insertion is restricted by the leg portion 3. The base end plate 9 is moved until it comes into contact with the panel 20 at a position where the anchor portion 4 is bent, and the anchor portion 4 is bent on the side opposite to the column insertion side of the panel 20 to fix the anchor portion 4 to the locking hole 21 in a retaining state. By doing so, it becomes possible to cope with a difference in the thickness of the panel 20 and the size of the locking hole 21. In particular, since the attachment to the panel 20 is completed simply by inserting the column 2 of the clamp 1 into the locking hole 21 and pushing the base end plate 9, there is no need to modify the panel 20 and it is easy even in a narrow space. The wiring harness W can be disposed and the workability is excellent.

On the other hand, the anchor portion 4 is provided so as to sandwich the support column 2 from the distal end side, and the inner surface of the folded tip 4 a is coupled to the distal end of the support column 2. In this case, the anchor portions 4 are expanded on both sides of the support column 2 to be prevented from coming off, and the reliability at the time of mounting is increased.
Moreover, since the thin part 12 which makes it easy to bend outward is formed in the anchor part 4, the outward bending of the anchor part 4 when the base end plate 9 moves is reliably performed.
Furthermore, the restriction means can be configured with a simple structure by providing the concave and convex portions 6 and 11 that are respectively provided on the opposing surfaces of the support column 2 and the anchor portion 4 and engage with each other.

  In the above embodiment, the anchor portion is substantially U-shaped, and the intermediate portion is expanded on both sides of the column. However, the plate-like anchor portion is provided along only one side of the column, Even if the intermediate part is expanded only on the one side by the movement, the attachment to the panel is possible. The shape of the base end may be changed to a circular flange shape by changing the size and shape of the base end plate, or may be a bar shape or a band plate shape whose length is larger than the diameter of the locking hole. Moreover, a thin part can also be abbreviate | omitted.

And the form of the harness fixing part is not limited to the above form, but instead of the tie band, as shown in FIG. 5, connecting pieces 15 and 15 parallel to the wire harness W are projected on the base end plate 9, and the connection is made. A change such as winding the wire harness W with the tape 16 together with the piece 15 is possible.
Moreover, in the said form, although it demonstrated in the procedure attached to a panel after fixing a wire harness to a clamp, even if it is the procedure which fixes a wire harness to a harness fixing | fixed part after attaching a clamp to a panel, it does not interfere. However, if the wire harness is fixed first, there is an advantage that the support can be easily pushed by holding the wire harness.

In addition, the support column may be a square bar or a plate shape, and the design of the leg portion may be changed as appropriate, such as changing the number and shape of the abutting portions or a half cap shape. In addition, the restricting means is also provided with a protrusion only on the side facing the anchor portion, not on the entire circumference on the support column side, or in the form of a spiral thread instead of the ring-shaped protrusion, or on the uneven portion due to the protrusion. Alternatively, other structures may be selected as long as the movement of each other can be restricted, such as a circular uneven portion.

It is a perspective view of a clamp. It is a perspective view of the clamp which fixed the wire harness. It is explanatory drawing which shows the state which inserted the clamp in the locking hole of the panel, (A) shows a side surface, (B) shows the front, respectively. It is explanatory drawing which shows the attachment state of a clamp, (A) is in the middle of attachment, (B) shows the time of completion of attachment, respectively. It is a perspective view of the clamp of the example of a change.

Explanation of symbols

  1 ・ ・ Clamp for wire harness 2 ・ ・ Strut 3 ・ ・ Leg 4 ・ ・ Anchor 4a ・ ・ Tip 5 ・ ・ Harness fixing part 6、11 ・ ・ Uneven part 7 ・ ・ Abutting Part, 8 ... intermediate part, 9 ... base end plate, 12 ... thin wall part, 20 ... panel, 21 ... locking hole.

Claims (4)

A wire harness clamp that fixes a wire harness using a locking hole formed in a panel of a vehicle body,
A support that can be inserted into the locking hole;
A leg portion that is provided integrally with the support column, and that contacts the panel in a state where the support column penetrates the locking hole, and restricts insertion of the support column;
It is provided in parallel with the support column, and the distal end is coupled to the distal end of the support column, while the proximal end is movable along the support column and cannot be inserted into the locking hole, and the proximal end is moved by moving toward the distal end side. An anchor portion that can be bent outward;
A regulating means that is provided between the support column and the anchor portion, and regulates movement of the proximal end in a state where the proximal end abuts the panel and the anchor portion is bent;
A harness fixing portion that is connected to the proximal end of the anchor portion and can be fixed to the wire harness;
The post is inserted into the locking hole together with the anchor part, and the base end of the anchor part is moved at a position where insertion is restricted by the leg part until it comes into contact with the panel. The wire harness clamp is characterized in that the anchor portion is fixed to the locking hole in a retaining state by bending the anchor portion on the opposite side.   The anchor portion is provided so as to sandwich the support column from the distal end side, and the inner surface of the folded front end is coupled to the distal end of the support column, and is moved outward on the left and right sides of the support column by moving the proximal end toward the distal end side. The wire harness clamp according to claim 1, wherein the wire harness clamp is bent in a substantially U shape.   The wire harness clamp according to claim 1 or 2, wherein a thin-walled portion that facilitates outward bending is formed in the anchor portion.   The wire harness clamp according to any one of claims 1 to 3, wherein the restricting means is a concavo-convex portion that is provided on a mutually opposing surface of the support column and the anchor portion and engages with each other.

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