JP2017210988A - Band tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce an extremity end part of a band part after cutting at a band tool from contacting with a part of body of a worker.SOLUTION: A band tool 100 comprises: a band part 10 having a plurality of protrusions 12 formed at one main surface 10S; an insertion part 32 to which a base end part 104 of the band part 10 is connected and formed with an open hole 32H into which an extremity end part 102 of the band part 10 can be inserted; an extending part 34 extending from a part in a peripheral direction forming an outlet of the open hole 32H at the insertion part 32 over the open hole 32H; and an engaging part 40 arranged inside the insertion part 32 to fix the band part for preventing coming-off while being engaged with the plurality of protrusions 12 at the band part 10. Upon cutting a surplus portion 10a of the band part 10 drawn out of an opening 34P of the extending part 34, an extremity end part 102a of the band part 10 is stored inside a recess groove formed by the extending part 34.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a band device.

  The wire harness band clamp disclosed in Patent Document 1 includes a box-shaped main body, a vehicle body locking clamp projecting from the outer surface of the main body, and an end of one side opening of a band through hole provided in the main body. A band portion extending from the edge is provided. The band portion is provided with a locking groove continuously, and a locking piece projects from the inner surface of the peripheral wall surrounding the band through hole. When the band clamp is fastened to the wire harness, the band portion is wound around the wire group, the tip is inserted through the band through hole and pulled, and the locking piece is locked in the locking groove of the band portion. The Furthermore, after the fastening, the surplus portion of the band portion pulled out from the through hole is cut.

  Further, 1/4 arc ribs are provided continuously in the length direction along both side edges in the width direction of the band portion, and the 1/4 arc rib has a perfect circle or a surface facing the leading end of the band portion on the drawing side. The ellipse is a quarter arc and the opposite side is a straight surface.

  According to the band clamp of Patent Document 1, since both sides in the width direction of the band cut end surface generated when the band portion pulled out from the band through hole is cut by the extra length are arc surfaces of 90 degrees or more, It is said that sharp edges do not occur. Also, when fixing the clamp part of the band clamp to the vehicle body, even if the operator's hand touches the cut end surface of the band part, there will be no pain or scratches at the edge, and work efficiency will be improved. It can be done.

Japanese Patent Application Laid-Open No. 2011-149456

  However, in the case of the band clamp of Patent Document 1, the front end portion of the band portion after the excess portion is cut is exposed to the outside. For this reason, when the edge part of a cut surface becomes sharp, there exists a possibility of contacting a part of worker's body. Therefore, there is a possibility that the work efficiency of the worker is lowered.

  An object of this invention is to provide the technique which reduces that the front-end | tip part of the band part after a cutting | disconnection contacts part of an operator's body.

  The first aspect is a band tool, which is formed in a band shape, and is connected to a band part in which a plurality of protrusions are formed on the surface along the longitudinal direction, and a base end part of the band part, A band fixing part that fixes a part of the band part on the tip side from the base end part, the band fixing part includes an insertion part that forms a through hole into which the tip part of the band part can be inserted; An extension portion extending in a direction extending the through hole from a part of a circumferential direction forming an exit of the through hole in the insertion portion, and provided inside the insertion portion, and on the plurality of protrusions in the band portion And a locking portion for locking and fixing the band portion by being locked.

  A 2nd aspect is a band tool of a 1st aspect, Comprising: The extension part contains the part formed in the cross-sectional U shape which makes a concave groove.

  A third aspect is the band device according to the second aspect, wherein an end surface forming an opening end in a depth direction of the concave groove formed by the extension portion is formed in the concave shape as it extends toward a distal end side of the extension portion. It includes an inclined surface that is inclined at a constant inclination toward the bottom side of the groove.

  A 4th aspect is a band tool any one of the 1st aspect to the 3rd aspect, Comprising: The vehicle fixing | fixed part fixed to a vehicle is further provided.

  According to the band device of the first aspect, a part of the periphery of the distal end portion of the band portion after cutting is covered with the extension portion, thereby reducing a part of the operator's body from contacting the distal end portion. it can.

  According to the band tool of the second aspect, the band part can be pulled out from the opening of the concave groove formed by the extension part, and the excess part of the band part can be cut. In addition, since the distal end portion of the band portion after cutting is accommodated inside the concave groove formed by the extension portion, it is possible to reduce contact of a part of the operator's body and the like with the distal end portion.

  According to the band device of the third aspect, the shortest distance from the locking position where the locking portion locks the band portion to the inclined surface can be made smaller than the length from the locking position to the tip of the extension portion. For this reason, when the band locking position is used as a fulcrum and the tip of the band is rotated and pulled out from the opening near the inclined surface and cut, the tip of the band after cutting can be accommodated inside the extension. It becomes easy.

  According to the band device of the fourth aspect, the band device can be fixed to the vehicle via the vehicle fixing portion. Thereby, the fixed object around which the band portion is wound can be fixed to the vehicle.

It is a perspective view of band implement 100 of an embodiment. It is a perspective view of band implement 100 of an embodiment. It is sectional drawing of the band tool 100 of the position along the III-III line | wire shown by FIG.1 and FIG.2. FIG. 4 is a cross-sectional view of the band tool 100 in a state where the band unit 10 is fixed to the band fixing unit 20. It is a perspective view which shows the exit side of the band fixing | fixed part 20 of embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the component described in this embodiment is an illustration to the last, and is not a thing of the meaning which limits the scope of the present invention only to them. In the drawings, the size and number of each part may be exaggerated or simplified as necessary for easy understanding.

<1. Embodiment>
1 and 2 are perspective views of the band device 100 of the embodiment. FIG. 1 is a perspective view showing the inlet side of the band fixing part 20 of the band tool 100, and FIG. 2 is a perspective view showing the outlet side of the band fixing part 20 of the band tool 100.

  FIG. 3 is a cross-sectional view of the band tool 100 at a position along the line III-III shown in FIGS. 1 and 2. FIG. 4 is a cross-sectional view of the band tool 100 in a state where the band unit 10 is fixed to the band fixing unit 20. FIG. 5 is a perspective view illustrating the outlet side of the band fixing unit 20 according to the embodiment.

  The band tool 100 is a member that is wound around the wire harness 90 and fixed to the wire harness 90, for example. The wire harness 90 is a component routed in a vehicle such as an automobile and includes a plurality of electric wires. The electric wire is a wiring material for electrically interconnecting various electric devices mounted on the vehicle. The outer periphery of the wire harness 90 is often formed in a shape having a circular cross section, but this is not essential.

  The band tool 100 includes a band unit 10 and a band fixing unit 20. The band part 10 and the band fixing part 20 are integrally molded products made of a resin such as polypropylene (PP). In addition, the band part 10 and the band fixing | fixed part 20 may be formed as a different body.

<Band part 10>
The band part 10 is a part formed in a band shape. The band part 10 is a part wound around the wire harness 90. A plurality of protrusions 12 are formed along the longitudinal direction of the band portion 10 on one main surface 10 </ b> S of main surfaces on both sides of the band portion 10 (surfaces having a larger area than the other surfaces). On the other hand, the main surface 10 </ b> S is a surface located on the inner peripheral side in a state where the band portion 10 is wound around the wire harness 90. In addition, it is not essential that the lateral width of the band part 10 is constant over the longitudinal direction. For example, the width of the band portion 10 may be reduced as it goes toward the tip portion 102.

  The plurality of projecting portions 12 are provided from a portion of the one main surface 10S near the distal end portion 102 of the band portion 10 to an intermediate portion on the base end portion 104 side.

  Each of the protrusions 12 has a convex shape extending in the width direction of the band portion 10 and is formed in a triangular cross section here. Each of the protrusions 12 is continuously provided so as to be adjacent to each other, and a groove 14 is formed between the two protrusions 12 and 12.

<Band fixing part 20>
The band fixing part 20 is a part connected to the base end part 104 of the band part 10, and fixes a part of the band part 10 closer to the front end part 102 than the base end part 104. Specifically, the band fixing part 20 includes a band fixing main body part 30 and a locking claw 40 (locking part). The base end portion 104 of the band portion 10 is connected to the band fixing main body portion 30 of the band fixing portion 20.

  The band fixing main body portion 30 is a portion through which the band portion 10 is inserted. The band fixing main body portion 30 is connected to an insertion portion 32 formed in a rectangular tube shape that forms a rectangular columnar through hole 32H extending along the longitudinal direction of the band fixing main body portion 30 and an end portion of the insertion portion 32. And an extension 34. In FIG. 3, FIG. 4 and FIG. 5, the conceptual boundary line of the insertion part 32 and the extension part 34 is shown with the dashed-dotted line.

  The band portion 10 can be inserted into the through hole 32H. The vertical width and the horizontal width of the through-hole 32H are respectively larger than the thickness and the horizontal width of the band portion 10 respectively. The distal end portion 102 of the band portion 10 is inserted from the entrance of the through hole 32H on one end (end opposite to the extension portion 34) side of the insertion portion 32, and is connected to the other end of the insertion portion 32 (part connected to the extension portion 34). ) Side through-hole 32H, and is pulled out from the extension 34. The inlet side of the through hole 32H coincides with the side of the band portion 10 on which the main surface 10S on which the plurality of protrusions 12 are provided faces.

  The locking claw 40 is locked to any one of the plurality of protrusions 12 in the band unit 10 to prevent the band unit 10 from being detached. The locking claw 40 extends from the inner side surface 30S of one of the four inner side surfaces forming the through hole 32H of the insertion portion 32 toward the inner side surface 32S opposite to the other side surface (exit side) of the insertion portion 32. ) And extending so as to incline toward (). A plurality of protrusions 42 are formed along the extending direction of the locking claw 40 on the surface of the locking claw 40 facing the inner surface on the opposite side. Each of the protrusions 42 is a convex shape extending in the width direction of the locking claw 40 and has a triangular cross section. The formation interval between the two adjacent protrusions 42 is a natural number multiple (here, equal) of the formation interval between the two adjacent protrusions 12 in the band portion 10. As a result, the plurality of protrusions 42 can mesh with some of the plurality of protrusions 12 (see FIG. 4).

  The band part 10 is inserted into the through hole 32 </ b> H in a posture in which the plurality of protrusions 12 are directed toward the locking claws 40. The band portion 10 is inserted in a direction from the proximal end side of the locking claw 40 toward the distal end side. At this time, when the band portion 10 is pulled toward the distal end side, the distal end portion of the locking claw 40 is elastically deformed toward the inner side surface 30S side where the proximal end portion is continuous. For this reason, each protrusion 42 of the locking claw 40 can easily get over the plurality of protrusions 12.

  On the other hand, when any of the plurality of protrusions 42 of the locking claw 40 fits into the groove 14 between the protrusions 12, the protrusion 42 is locked to the protrusion 12. In this locked state, when the band portion 10 is pulled toward the base end portion 104, the locking claw 40 is formed between the one inner surface 30 </ b> S where the base end portion continues and the one main surface 10 </ b> S of the band portion 10. And intervene as a brace. For this reason, it is suppressed that the band part 10 moves to the base end part 104 side with respect to the band fixing | fixed part 20. FIG. That is, the band portion 10 is fixed to the band fixing main body portion 30 of the band fixing portion 20 by the locking claws 40.

  When the band part 10 is inserted into the band fixing main body part 30 of the band fixing part 20 and the band part 10 is pulled so as to tighten the wire harness 90 in a state where the band part 10 is wound around the wire harness 90, the reaction to the tightening force is caused. As a result, a force for pulling the band portion 10 toward the base end portion acts on the band fixing portion 20. However, as described above, the locking of the locking claw 40 and the protrusion 12 can suppress the movement of the band portion 10 toward the base end portion 104 with respect to the band fixing main body portion 30. For this reason, the band part 10 is inserted and fixed to the band fixing main body part 30 at a position corresponding to the thickness of the wire harness 90 (the winding object) in the longitudinal direction.

  Further, in this example, the inner side surface 32S of the bottom 320, which is a part of the insertion portion 32, has a direction perpendicular to the axial direction of the through hole 32H as it approaches the outlet side of the through hole 32H. It is inclined outward (on the side opposite to the inner side surface 32S). The inclined portion of the inner side surface 30S forms a curved surface having a predetermined radius of curvature when viewed in cross section. When the band portion 10 is pulled out from the band fixing main body portion 30, it can be pulled out along this curved surface.

  The extension part 34 is a part that extends from the part of the insertion part 32 in the circumferential direction that forms the outlet of the through hole 32H, in the direction of extending the through hole 32H, that is, in the axial direction of the through hole 32H. Specifically, in the insertion portion 32, a portion that forms the inner side surface 30S (portion where the locking claw 40 is provided) is the bottom portion 320, a portion that forms the inner side surface 32S is the ceiling portion 322, and the bottom portion 320 and the ceiling A pair of portions connecting the portions 322 are side wall portions 324 and 324. Then, the extension part 34 is a part formed by extending each of the ceiling part 322 and the pair of side wall parts 324 and 324 that are a part of the insertion part 32 in the axial direction of the through hole 32H, that is, the ceiling part 342. And a pair of side wall portions 344 and 344. The extension portion 34 has a concave groove extending in the axial direction of the through hole 32H, and a cross section perpendicular to the axial direction is formed in a U shape.

  The pair of side wall portions 344 and 344 facing each other of the extension portion 34 forming a concave groove are arranged in parallel with an interval corresponding to the lateral width of the through hole 32H. End surfaces 344S and 344S on the opposite side of the ceiling portion 342 in the pair of side wall portions 344 and 344 are open ends in the depth direction of the concave groove formed by the extension portion 34 (direction perpendicular to the extending direction of the extension portion 34). It corresponds to the part. A gap between the side wall portions 344 and 344 is an opening 34P of a concave groove. The opening 34P extends in the extending direction of the extension 34 (here, the axial direction of the through hole 32H) and communicates with the through hole 32H.

  The end surfaces 344S and 344S are formed on the bottom side (that is, the ceiling portion 342 side) of the concave groove formed by the extension portion 34 from the insertion portion 32 side (base end side) of the extension portion 34 toward the opposite side (tip end side). The inclined surface is inclined at a constant inclination. Here, the depth of the concave groove formed by the extension portion 34 (distance perpendicular to the extending direction of the extension portion 34) decreases at a constant rate from the base end side of the extension portion 34 toward the tip end side thereof. Yes. The pair of side wall portions 344 and 344 have a trapezoidal shape in which the side on the ceiling portion 342 side extends linearly along the axial direction of the through hole 32H and the opposite side is inclined obliquely in a side view. . And the space inside the concave groove | channel which the extension part 34 makes has the trapezoid column shape corresponding to the trapezoid shape.

  In addition, it is not essential that the end surface 344S is an inclined surface over the entire length of the extension portion 34. For example, the end surface 344S may be an inclined surface only in a part of the longitudinal direction.

<About mounting to the wire harness 90>
Next, an operation procedure for attaching the band tool 100 to the wire harness 90 will be described.

  First, as shown in FIG. 4, when the band device 100 is attached to the wire harness 90, the band portion 10 is wound around the wire harness 90 with the one main surface 10 </ b> S of the band portion 10 facing the outer peripheral surface of the wire harness 90. Attached. And the front-end | tip part 102 of the band part 10 is inserted in the through-hole 32H which the insertion part 32 of the band fixing main-body part 30 forms. When the band portion 10 is pushed in the axial direction of the through hole 32H, the band portion 10 is pulled out from the gap between the pair of side wall portions 344 and 344 on the distal end 340 side (the opposite side to the insertion portion 32) of the extension portion 34.

  Subsequently, the distal end portion 102 of the band portion 10 rotates with the engagement position where the engagement claw 40 engages the band portion 10 (here, the top of the protrusion 42 at the distal end of the engagement claw 40) as a fulcrum. Displaced and pulled out from the gap between the pair of end surfaces 344S and 344S forming an inclined surface in the extended portion 34, that is, the opening 34P. At this time, the band part 10 elastically deforms the latching claw 40 by pushing the latching claw 40 toward the inner surface 30S. Thereby, each of the protrusions 42 of the locking claw 40 gets over the plurality of protrusions 12 of the band part 10 and is locked at a position closer to the base end part 104. That is, the band part 10 is further tightened.

  Then, the surplus part 10a is cut | disconnected among the band parts 10 pulled out from the opening 34P. A cutting tool 80 can be used for cutting the band unit 10. This type of cutting tool 80 includes, for example, an exterior body 82 and a cutter 84 (here, two opposing blades) built in the exterior body. The distal end portion of the exterior body 82 is formed with an insertion hole into which the distal end portion 102 of the band portion 10 can be inserted, and a cutter 84 is disposed at a fixed position on the path of the insertion hole. When cutting the surplus part 10a of the band part 10 using the cutting tool 80, the front-end | tip part 102 of the band part 10 is inserted in the insertion hole of the exterior body 82, and the front end surface of the exterior body 82 is a pair of end surface 344S after that. To. Then, the cutter 84 is driven by a predetermined operation of the cutting tool 80, and the surplus portion 10a of the band portion 10 is cut. As shown in FIG. 4, when the distal end surface of the exterior body 82 is a flat surface, the cutting tool 80 is stably fixed to the band tool 100 by applying the flat surface to the flat end surfaces 344S and 344S. it can. Thereby, cutting can be performed satisfactorily.

  As shown in FIG. 4, the distal end portion 102 a of the band portion 10 after the cutting is formed inside the concave groove formed by the extension portion 34 by the restoring force due to the elasticity of the band portion 10 or the restoring force due to the elasticity of the locking claw 40. Is housed in. In this state, the extension part 34 covers the periphery of the tip part 102a, so that it is possible to suppress a part of the worker's body or a surrounding member from coming into contact with the tip part 102a in all directions.

  As shown in FIG. 4, the distance L1 from the locking position of the locking claw 40 (the front end portion of the locking claw 40) to the front end 340 of the extension portion 34 (the front end of the side wall portion 344) is set. A circle C1 having a radius L1 is assumed. Then, as shown in FIG. 4, since the end surface 344S forms an inclined surface, at least a part of the end surface 344S is included inside the circle C1 in a cross-sectional view. That is, the shortest distance L2 from the distal end portion of the locking claw 40 to the end surface 344S is smaller than the distance L1 (the length from the locking position to the distal end 340 of the extension portion 34). When the band unit 10 is cut, the locking unit 40 approaches the inner side surface 30S side, that is, the end surface 344S. At this time, the shortest distance L2 from the locking position of the locking claw 40 to the end surface 322S is further shorter than the minimum distance L2 when the locking claw 40 is normal. Therefore, when the band portion 10 drawn out from the opening 34P is cut, it becomes easy to accommodate the distal end portion 102a of the cut band portion 10 inside the extension portion 34.

<2. Modification>
Although the embodiment has been described above, the present invention is not limited to the above, and various modifications are possible.

  In the above-described embodiment, the insertion portion 32 is formed in a rectangular tube shape, but may take any shape such as a cylindrical shape. Moreover, it is not essential that the insertion portion 32 is formed in a cylindrical shape that is completely closed in the circumferential direction. For example, a part in the circumferential direction of the insertion part 32 may be cut out over a part or all of the axial direction of the through hole 32H. As for the extension part 34, for example, a part or all of the ceiling part 342 and the pair of side wall parts 344 may be formed in a curved plate shape.

  In the said embodiment, the extension part 34 is comprised by the ceiling part 342 and a pair of side wall parts 344,344, and has comprised the concave groove. However, it is not essential that the extension 34 forms a concave groove. For example, any one of the ceiling part 342 and the pair of side wall parts 344 and 344 may be omitted. For example, even when the extension part 34 is only the ceiling part 342, a part of the periphery of the distal end part 102 a of the band part 10 after cutting can be covered with the ceiling part 342. For this reason, it can suppress that a part of worker's body or the surrounding member contacts the front-end | tip part 102a from the ceiling part 342 side.

  In the above embodiment, the pair of side wall portions 344 and 344 have the same size and shape, and the pair of end surfaces 344S and 344S are on the same plane. However, this is not essential, and for example, one of the pair of side wall portions 344 may have a different size or a different shape from the other. For example, in a side view, one may be formed in a trapezoidal shape and the other may be formed in a rectangular shape. In this case, only one end surface 344S of the pair of side wall portions 344 and 344 forms an inclined surface.

  In the above embodiment, a pair of side wall portions 344 and 344 are provided along the longitudinal direction of the extension portion 34. However, the side wall portions 344 and 344 may be formed only in a part of the extension portion 34 in the longitudinal direction. For example, a pair of side wall portions 344 and 344 may be provided only in the portion near the distal end of the extension portion 34, and the portion near the base end portion, that is, the insertion portion 32 may be only the ceiling portion 342. In this case, if the distal end portion 102 of the band portion 10 is pulled out closer to the proximal end side of the extension portion 34, the surplus portion of the band portion 10 can be cut as large as possible. Then, the distal end portion 102 a of the band portion 10 after cutting can be covered with the ceiling portion 322 and the pair of side wall portions 324 that are closer to the distal end side of the extension portion 34.

  In the embodiment described above, the base end portion 104 of the band portion 10 is connected to the distal end of the insertion portion 32 in the band fixing main body portion 30 (the end portion opposite to the extension portion 34). However, the base end portion 104 of the band portion 10 may be connected to an arbitrary position such as an intermediate portion of the band fixing main body portion 30 or the extension portion 34.

  In the above embodiment, the inner side surface 30S where the base end portion of the locking claw 40 is continuous is the surface on the side where the band portion 10 is provided among the four inner side surfaces forming the through hole 32H. The position where 40 is provided may be provided on another inner surface. Moreover, according to the extending direction of the latching claw 40 and the projecting direction of the projecting part 42, the positions or projecting directions of the plurality of projecting parts 12 in the band unit 10 may be appropriately changed.

  As shown in FIG. 3, the band tool 100 may include a clamp portion 50 (vehicle fixing portion) that is fixed to the vehicle. The clamp part 50 is fixed to the vehicle by being inserted into a clamp hole formed in the vehicle such as an automobile. The clamp part 50 may be provided, for example, on the top of the band fixing main body part 30 of the band fixing part 20 (the outer surface of the ceiling parts 322 and 342 of the insertion part 32 and the extension part 34). By providing the clamp part 50, the wire harness 90 around which the band part 10 is wound can be fixed to the vehicle.

  Although the present invention has been described in detail, the above description is illustrative in all aspects, and the present invention is not limited thereto. It is understood that countless variations that are not illustrated can be envisaged without departing from the scope of the present invention. The configurations described in the above embodiments and modifications can be appropriately combined or omitted as long as they do not contradict each other.

DESCRIPTION OF SYMBOLS 100 Band tool 10 Belt part 102 Tip part (of band part) 102a Tip part (of band part after cutting) 20 Band fixing part 30 Band fixing main body part 32 Insertion part 34 Extension part 340 Tip 342 Ceiling part 344 Side wall part 344S End face (Inclined surface)
34P Opening 40 Locking claw 50 Clamp part

Claims (4)

A band tool,
A band portion that is formed in a band shape and has a plurality of protrusions formed along the longitudinal direction on the surface thereof;
A band fixing portion that is connected to the base end portion of the band portion and fixes a portion of the band portion on the front end side relative to the base end portion;
With
The band fixing part is
An insertion part that forms a through-hole into which the tip of the band part can be inserted; and
An extension portion extending in a direction extending the through hole from a part of a circumferential direction forming an outlet of the through hole in the insertion portion;
A locking portion that is provided inside the insertion portion and is locked to the plurality of protrusions in the band portion, thereby securing the band portion to be prevented from coming off,
A band device comprising: The band device according to claim 1,
A band implement including a portion formed in a U-shaped cross section in which the extension portion forms a concave groove. The band device according to claim 2,
An inclined surface in which an end surface forming an opening end in the depth direction of the concave groove formed by the extension portion is inclined at a constant inclination toward the bottom side of the concave groove as it goes toward the distal end side of the extension portion. Including the band tool. The band device according to any one of claims 1 to 3,
A vehicle fixing part fixed to the vehicle,
A band implement further comprising:

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