JP5067640B2 - Cable tie support member - Google Patents

Description

  The present invention relates to a binding band support member that supports a supported member such as a wire by tightening the support member with a binding band.

  2. Description of the Related Art Conventionally, a flat binding band has been used to support a current-carrying wire, a transmission wire, an electrical component, or the like in a vehicle or the like with a vehicle panel or an electrical component body. In this binding band, for example, as described in JP-A-10-37917 (Patent Document 1), an insertion locking portion is integrally formed at one end portion of the band-shaped portion. In addition, a serrated locking projection is formed on one plane of the band-shaped portion, and an insertion hole is formed in the insertion locking portion to allow the band-shaped portion to pass therethrough, and protrudes into the insertion hole. A locking piece is provided. And by letting the strip-shaped portion pass through the insertion hole from the other end, the locking piece locks against the locking projection, so that the strip-shaped portion is prevented from being pulled out from the insertion hole, and the object is tightened in a non-relaxable manner. It can be done.

  By the way, in order to clamp and support a supported member such as a wire with respect to a support member such as a vehicle panel using this binding band, it is described in, for example, Japanese Patent Application Laid-Open No. 2006-166621 (Patent Document 2). As shown, a pair of band insertion holes are formed in the support member. Then, the binding band is sequentially inserted into the pair of band insertion holes, and the band-like portion is wound around the supported member and then inserted into the insertion hole of the insertion locking portion to be tightened.

  However, when the band-shaped portion of the binding band is inserted through the band insertion hole of the support member, the locking protrusion formed on the binding band may be caught on the inner surface or the opening edge of the band insertion hole. For this reason, the work of inserting the binding band into the band insertion hole is troublesome and takes time.

  In particular, the pair of band insertion holes are often formed through the support member in parallel with each other, and it is necessary to fold and deform the band-shaped portion inserted into one band insertion hole and insert it into the other band insertion hole. . At that time, since the belt-like portion is elastically restored, the belt-like portion is pressed against the inner surface and the opening edge of the band insertion hole, and the catch of the locking protrusion is more likely to be a problem.

  Also, when the band-like part inserted through the pair of band insertion holes is inserted into the insertion hole of the insertion locking part and tightened, the band-like part is formed against the inner surface and the opening edge of the band insertion hole by the tightening force. Easy to be pressed. As described above, when the band-shaped part is inserted into the band insertion hole or is tightened, if the band-shaped part is moved while being pressed against the inner surface or the opening edge of the band insertion hole, the engagement formed in the band-shaped part. The stop protrusion may be crushed. As a result, it is difficult to sufficiently exert the locking force of the locking piece with respect to the locking protrusion, and the stability and reliability of the supporting force of the supported member by the supporting member may be reduced.

Japanese Patent Laid-Open No. 10-37917 JP 2006-166621 A

  The present invention has been made in the background of the above-mentioned circumstances, and the problem to be solved is that the binding band can be easily attached by being prevented from being caught when the binding band is inserted into the band insertion hole or tightened. An object of the present invention is to provide a binding band support member having a novel structure that can be used and that the binding band can be stably tightened.

In the first aspect of the present invention, a band binding hole is formed, and a flat binding band having a serrated locking projection formed on one side is inserted into the band insertion hole and wound around a supported member and tightened. Accordingly, in the binding band support member that fixedly supports the supported member, the band insertion hole has a long hole shape, and the length of the binding band on which the one side of the binding band on which at least the locking projection is formed is opposed to each other The pair of band insertion holes are formed in a concave shape that bulges outward, and the pair of band insertion holes are formed so as to be separated from each other in the short side direction and parallel to each other in the long side direction. It is characterized in that at least the outer long side portion of the hole is concave .

  In the binding band support member according to the first aspect, the concave protrusion formed on the long side portion of the band insertion hole causes the formation surface of the locking projection in the binding band inserted therethrough to be the inner periphery of the band insertion hole. Can be spaced from the surface. This prevents the binding band from being caught in the band insertion hole during insertion into the band insertion hole or tightening. As a result, it is easy to insert and tighten the binding band into the band insertion hole and prevent the locking protrusion from being crushed due to being caught in the band insertion hole, thus stabilizing the locking action by the locking protrusion. Can be obtained.

  In this aspect, a conventionally known flat binding band can be used, and preferably a pair of protrusions are formed along the edges on both sides in the width direction of the surface on which the locking protrusions are formed. A binding band having the structure described above is used. In such a binding band, when inserted into the band insertion hole, the pair of protrusions abut against the inner peripheral surface of the band insertion hole, and the inner periphery of the band insertion hole of the locking projection formed in the center portion in the width direction. Contact to the surface can be prevented more effectively. However, in this aspect, a binding band in which such a protrusion is not formed and a locking projection extending in the entire width direction of the binding band can be used. Even in such a case, at least in the central portion in the width direction of the binding band, the above-described effects can be exhibited by avoiding the contact of the locking projections with the inner peripheral surface of the band insertion hole.

In addition, in this aspect, when a binding band in which the outer peripheral surface when wound around the supported member is a single surface on which a locking projection is formed is used, the locking projection is prevented from being caught in the band insertion hole. Can do. In particular, when inserting into the pair of band insertion holes, the binding band is elastically restored to a linear shape, which is effective in avoiding the hooking protrusion from being caught on the long side portion outside the pair of band insertion holes. .

According to a second aspect of the present invention, in the binding band support member according to the first aspect, the pair of band insertion holes are formed so as to be separated from each other in the short side direction and parallel to each other in the long side direction. cage, the long sides of the inner side of the pair of band insertion holes is also what is respectively concave.

In the second aspect, when adopting a binding band in which the inner peripheral surface when wound around the supported member is a single surface on which the locking projection is formed, the locking projection is prevented from being caught in the band insertion hole. I can do it. In particular, when tightening the binding band inserted through the pair of band insertion holes, the binding band is deformed by the tightening force to prevent the locking protrusion from being caught on the long side portion inside the pair of band insertion holes. It is valid.

According to a third aspect of the present invention, in the binding band support member according to the first or second aspect, chamfering is formed at the edge portions of both side openings in the long side portion that is formed in a concave shape that bulges outward. It is what has been.

According to the 3rd aspect, the edge-shaped corner | angular part of the opening part of a band penetration hole was made into the chamfering shape which consists of C surface and R surface, and can catch the binding band to an edge-shaped corner | angular part. Therefore, the effect of the present invention for preventing the binding band from being caught in the band insertion hole can be achieved more effectively.

  According to the present invention, the distance between the formation surface of the locking projection in the binding band and the inner peripheral surface of the band insertion hole can be easily and effectively ensured, whereby the binding band can be secured to the band insertion hole. The locking projection can be prevented from being caught when inserted into or tightened.

The perspective view which shows the state by which the wire harness was mounted | worn with the binding band to the connector holder as one Embodiment of this invention. The top view of the state by which the wire harness was mounted | worn with the binding band by the connector holder. III-III sectional drawing in FIG. The top view which expands and shows the principal part of a connector holder. The perspective view which shows a binding band.

  Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

  1-3, the connector holder 10 as one Embodiment of this invention which concerns on the binding band support member is shown. A wire harness 12 as a supported member is attached to the connector holder 10 with a binding band 14.

  More specifically, the connector holder 10 houses and supports a connector connecting portion for connecting the wire harnesses 12 as is well known, and is fixed to a vehicle body panel or the like using a bracket, a fixing bolt, or the like. In this embodiment, the connector holder 10 also serves as a binding band support member, and the guide portion 16 that pulls out the wire harness 12 extending from the connector connection portion accommodated in the connector holder 10 in a predetermined direction is provided in the connector holder 10. It is provided outside. A concave groove 18 into which the wire harness 12 is inserted is formed in the guide portion 16, and a pair of band insertion holes 22, 22 are formed in the bottom wall 20 of the concave groove 18.

  As shown in FIG. 4, the pair of band insertion holes 22, 22 has a thickness of the bottom wall 20 in a cross section of a long hole shape including a pair of long side portions 24, 24 and short side portions 28, 28. It is formed to penetrate in the direction. The bottom wall 20 of the connector holder 10 has a flat plate shape, and is formed so that the pair of band insertion holes 22 and 22 are separated from each other in the short side direction and parallel to each other in the long side direction. ing. That is, the pair of band insertion holes 22 and 22 are spaced apart from each other at positions and shapes that are symmetric with respect to a center line X that extends in parallel with the long sides 24 and 24.

  Further, each band insertion hole 22 has a concave shape in which the long side portions 24, 24 on both sides are curved and expanded toward the outer peripheral side. Accordingly, the inner peripheral surfaces of the long side portions 24, 24 on both sides of the inner peripheral surface of the band insertion hole 22 are formed as concave curved surfaces 29. In addition, the short side parts 28 and 28 on both sides of each band insertion hole 22 have a linear shape extending in parallel to each other. Further, the four corners of the band insertion hole 22 are all arc-shaped portions having no corners, and the long side portion 24 and the short side portion 28 are smoothly connected.

  In addition, each band insertion hole 22 has a distance between opposing short sides 28, that is, an opening width in the long side direction, larger than the width dimension of the binding band 14 to be inserted. On the other hand, the distance between the opposing surfaces of the long side portions 24, 24 of the band insertion hole 22, that is, the opening width in the short side direction is larger than the thickness dimension of the binding band 14 but smaller than the width dimension at the maximum value. ing. Thereby, inversion of the front and back in the band insertion hole 22 in the binding band 14 inserted in the band insertion hole 22 is prevented.

  Moreover, the edge part which is the opening peripheral part of the both sides in the band insertion holes 22 and 22 is rounded over the perimeter. Thereby, the edge part of the both-sides opening of the band penetration holes 22 and 22 is made into the chamfering surfaces 34 and 34 which inclined in the direction which expands gradually as it goes to an opening direction outward.

  When the wire harness 12 is superimposed on the bottom wall 20 in which the pair of band insertion holes 22 and 22 are formed, the wire harness 12 is fitted in the recessed groove 18 and wired. In addition, a binding band 14 is inserted into and attached to the pair of band insertion holes 22, 22, and the wire harness 12 is fixed on the bottom wall 20 in the concave groove 18 by the binding band 14. It is tightened.

  As shown in FIG. 5, the binding band 14 includes a belt-like portion 36 having a long and flat plate shape with a rectangular cross section, and an insertion locking portion 38 at one end in the length direction of the belt-like portion 36. Are integrally formed. As is well known, the binding band 14 is integrally formed of a synthetic resin material, and the belt-like portion 36 can be bent and deformed.

  In addition, a large number of serrated locking projections 42 are formed side by side in the longitudinal direction of the band-like part 36 on one side 40 which is one side in the thickness direction. In addition, a pair of protrusions 44 and 44 are formed on one side 40 of the belt-like portion 36 on which the locking projection 42 is formed at both end edges in the width direction. The pair of protrusions 44, 44 extend over substantially the entire length of the belt-like part 36, and extend in the width direction of the belt-like part 36 across both protrusions 44, 44. A stop projection 42 is formed.

  In short, a plurality of locking protrusions 42 are formed on one surface 40 of the belt-like portion 36 in a state of being engraved at the central portion in the width direction. Thereby, both sides in the width direction of each locking projection 42 are sandwiched between the pair of protruding portions 44, 44, and the protruding tip portion of each locking projection 42 is substantially the same as the protruding tip surface of the protruding portions 44, 44. It is held at the same height.

  On the other hand, an insertion hole 46 is formed in the insertion locking portion 38 of the binding band 14, and a locking piece 48 is formed protruding from the insertion hole 46. Then, the locking piece 48 is locked to the locking protrusion 42 of the band-shaped portion 36 by bending the band-shaped portion 36 in a ring shape and inserting the tip portion into the insertion hole 46. In addition, since the locking projection 42 has a sawtooth shape, the locking action of the locking piece 48 with respect to the locking projection 42 functions only in the direction in which the band-shaped portion 36 is pulled out from the insertion hole 46, and the band-shaped portion 36. Can be tightened and locked so that it cannot be released.

  Therefore, the band-like portion 36 of the binding band 14 is inserted into the pair of band insertion holes 22, 22 formed in the bottom wall 20 of the groove 18, wound around the wire harness 12, and then engaged with the insertion locking portion 38. By stopping, the wire harness 12 can be fastened and fixed to the bottom wall 20 of the groove 18.

  In this operation, before or after the wire harness 12 is fitted into the concave groove 18, the band-like portion 36 of the binding band 14 is placed on the distal end side with respect to the pair of band insertion holes 22, 22 formed in the bottom wall 20. Will be inserted sequentially. At that time, the one surface 40 on which the locking projection 42 of the belt-like portion 36 is formed faces the long side portions 24 a and 24 a outside the band insertion holes 22 and 22. Since the long side portion 24a has a concave shape that bulges outward, the central portion of the long side portion 24a is larger than the width direction of the belt-like portion 36 with respect to one side 40 of the belt-like portion 36 that is flat. The separation distance is increased.

  Therefore, the distance between the opposing surfaces of the locking projections 42 formed on one side 40 of the band-like portion 36 and the long side portion 24a outside the band insertion hole 22 can be secured. Contact with the portion 24a can be effectively avoided. In particular, in the present embodiment, on one side 40 of the band-like portion 36 of the binding band 14, there are a pair of edge portions on both sides in the width direction that may come into contact with the long side portion 24 a when inserted into the band insertion holes 22, 22. Since the protrusions 44 are formed, the contact of the locking protrusion 42 with the long side portion 24a can be prevented more reliably.

  Thus, when the binding band 14 is inserted into the band insertion holes 22 and 22 or when the binding band 14 is tightened, the problem that the locking protrusion 42 is caught on the opening peripheral edge or the inner peripheral surface of the band insertion holes 22 and 22 is avoided. I can do it. Then, the operation of inserting the binding band 14 into the band insertion holes 22 and 22 and the operation of tightening the binding band 14 can be performed efficiently. In addition, since it is possible to avoid a problem that the locking projection 42 is crushed due to being caught on the opening peripheral edge or the inner peripheral surface of the band insertion holes 22, 22, the locking piece 48 of the locking projection 42 can be avoided. Accordingly, it is possible to more stably obtain the tightening force of the binding band 14 based on the locking action.

  Furthermore, in this embodiment, since the band insertion holes 22 and 22 are formed in a long hole shape, as described below, a further advantageous effect is exhibited as compared with the case where a round hole shaped band insertion hole is adopted. Is done.

  First, it becomes easy to secure a space for forming the band insertion holes 22 and 22. That is, in order to insert the band-like portion 36 of the binding band 14, it is necessary to make the opening width of the band insertion holes 22, 22 larger than the width of the band-like portion 36. In the case of a round hole-shaped band insertion hole, a circular hole having a diameter larger than the width of the belt-like portion 36 is formed. On the other hand, if the band insertion hole 22 has a long hole shape, the height dimension can be reduced even if the width dimension is the same. Therefore, the long hole-shaped band insertion holes 22 and 22 can reduce the space required for formation, and can effectively ensure the strength of the member such as the bottom wall 20.

  In addition, it is possible to prevent the front and back from being reversed when the binding band 14 is inserted. In other words, the binding band 14 inserted through the circular band insertion hole can be rotated and reversed, but the band insertion hole is formed into a long hole shape, and the opposing distance between the pair of long side portions 24 and 24 in the band insertion hole 22 Is made smaller than the width dimension of the band-like portion 36 of the binding band 14, the reversal of the binding band 14 in the inserted state can be prevented. As a result, the binding band 14 can be easily inserted.

  Furthermore, stress concentration at both ends in the width direction when the binding band 14 is tightened can be reduced. That is, the radius of curvature in the circumferential direction of the inner peripheral surface of the band insertion hole 22 can be set larger in the case of the elongated hole than in the case of a circular insertion hole. Therefore, even if a large tightening tensile force is exerted on the binding band 14 and the band is deformed along the inner peripheral surface of the band insertion hole 22, the bending of the band-like portion 36 is suppressed to a small extent, and a significant concentration of stress is avoided. By doing so, the occurrence of cracks and breakage can be prevented.

  In addition, in this embodiment, since the edge portions of both side openings of the band insertion holes 22 and 22 are the chamfered surfaces 34 and 34, the locking projections 42 on the opening peripheral edge portions of the band insertion holes 22 and 22 are formed. The catch can be prevented more effectively.

  As mentioned above, although one Embodiment of this invention was explained in full detail, this invention is not limited by the specific description. For example, the binding band support member may include an electrical junction box, a bracket for mounting the electrical junction box on the vehicle body, a vehicle body panel, and the like. Further, the supported member may be various sensor cables, fluid hoses, and electrical parts.

  In addition, the concave shape which bulges outward of the long side part 24 of the band insertion holes 22 and 22 is not limited to the concave curved surface curved in the circumferential direction as illustrated. For example, it is also possible to form the long side portion 24 with a concave shape that extends in the circumferential direction and bulges outward in a polygonal shape combining a plurality of straight lines.

  Further, the present invention can also be applied to a case where a supported band is fastened and fixed by inserting a binding band through a single band insertion hole formed in the support member. For example, a supported member such as a wire harness in which one band insertion hole is formed near the edge of the support member, and the binding band 14 inserted through the band insertion hole is routed along the edge of the support member. It is also effective to apply the present invention to the band insertion hole in the shape of a long hole with a long side portion having a specific shape even when it is wound around and fastened.

10: Connector holder (supporting member for binding band), 12: Wire harness (supported member), 14: Binding band, 22: Band insertion hole, 24: Long side part, 28: Short side part, 29: Concave curved surface , 34: Chamfered surface, 36: Band-shaped part, 40: One side, 42: Locking protrusion

Claims (3)

A band insertion hole is formed, and a flat binding band having a serrated locking projection formed on one side is inserted into the band insertion hole, and the supported member is fixed by being wound around the supported member and tightened. In the binding band support member supported by
The band insertion hole is formed into a long hole shape, and at least a long side portion of the binding band on which the locking projection is formed is opposed to the one side of the binding band, and has a concave shape that bulges outward .
The pair of band insertion holes are formed so as to be separated from each other in the short side direction and parallel to each other in the long side direction, and at least the long side portions on the outer side of the pair of band insertion holes are each formed in a concave shape. Ties support member, characterized in that there. A pair of the band insertion hole is formed so as to be parallel to each other in the long side direction and separated from each other in the short side direction, respectively also the long sides of the inner side of the pair of band insertion holes is a concave shape The binding band support member according to claim 1. The binding band support member according to claim 1 or 2 , wherein a chamfer is formed at an edge portion of both side openings in the long side portion that is formed in a concave shape that bulges outward.

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