JP2020028157A - Protector for wire harness - Google Patents

Abstract

To provide a protector for a wire harness capable of suppressing a section of a cutting margin from coming into contact with an operator or other components when a tip section of a band section inserted into a head section of a tie band and protruding from the head section is cut away leaving a cutting allowance of a predetermined length.SOLUTION: A protector 2 includes a wall section 4 that is positioned along a wire harness 1. A tie band fixing section 5 for fixing a tie band 3 is provided on the wall section 4. A head section 3a of the tie band 3 is positioned in a recess 6 of the tie band fixing section 5, a band section 3b extending from the head section 3a is wound about the wall section 4 and the wire harness 1, and the band section 3b is inserted into an engaging hole 8 of the head section 3a so as not to be extracted from the head section 3a. A tip end of the band section 3b is cut away leaving a cutting margin of a predetermined length. Next to the recess 6 in the tie band fixing section 5, a leg section 9 having elasticity is provided so as to protrude toward the recess 6 and in a direction away from the wall section 4 than the recess 6.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wire harness protector.

  In a vehicle or the like, a protector capable of fixing a wire harness with a tie band is provided, and the protector aligns the wire harness with a predetermined position of the vehicle and protects the wire harness from peripheral components and the like. . Such a protector is, for example, as disclosed in Patent Document 1, and has a wall portion having a substantially L-shaped cross section that is in contact with and along a wire harness, and is provided on the wall portion to position the head of a tie band. A positioning unit.

  In the protector, a band extending from the head of the tie band is wound around the wall and the wire harness while the head of the tie band is positioned on the positioning portion of the wall. Furthermore, by inserting the band of the tie band into the head and pulling the tip of the inserted band, the wire harness is tightened against the wall at the same band, and the band is attached to the head of the tie band. Engage so that it cannot be pulled out in the direction opposite to the insertion direction. Thereby, the wire harness is fixed to the wall of the protector.

  By the way, since the thickness of the wire harness is various, in the tie band for fixing the wire harness to the wall of the protector, the length of the band extending from the head is set to be longer. For this reason, when the tie band is inserted into the head of the tie band in order to fix the wire harness to the wall of the protector using the tie band, the leading end of the tie band in the insertion direction is the above-mentioned. It becomes easy to protrude greatly from the head.

  Therefore, the tip of the band, which protrudes from the head, is cut off using a tool such as a band cutter, leaving a cutting margin of a predetermined length. By the way, if a predetermined length of cut-off is not left at the end of the band, the force in the direction of pulling out from the head acts on the band engaged with the head. When the band is displaced from the head in the extracting direction, the engagement between the head and the band is weakened, and the band may be pulled out from the head.

JP 2017-163654 A

  However, if a notch of a predetermined length is left at the tip of the band portion inserted into the head of the tie band and protruding from the head, the above-mentioned notch portion in the band portion may be a worker or other part. Contact with other parts.

  An object of the present invention is to cut off a portion of a band portion inserted into a head portion of a tie band and protruding from the head portion, leaving a cut length of a predetermined length. An object of the present invention is to provide a wire harness protector capable of suppressing contact with an operator and other parts.

Hereinafter, means for solving the above-described problems and the effects thereof will be described.
A wire harness protector that solves the above-mentioned problem is provided with a positioning portion that positions a head portion of a tie band on a wall portion in contact with the wire harness. Then, with the head of the tie band positioned by the positioning portion, a band extending from the head of the tie band is wound around the wall and the wire harness, and the band is wound around the head. The wire harness is fixed to the wall by being inserted and engaged so as not to be pulled out from the head. Adjacent to the positioning portion in the wall portion, an elastic leg portion is provided so as to protrude toward the positioning portion side and further away from the wall portion than the positioning portion.

  According to the above configuration, since the wire harness is fixed to the wall of the protector using the tie band, when the tie band is inserted into the head of the tie band, the tip of the tie band in the insertion direction is inserted. Protrude greatly from the head. When cutting off the tip of the band part inserted into the head of the tie band and protruding from the head, leaving a cutting allowance of a predetermined length, the legs are positioned on the positioning part side. It is elastically deformed to be displaced. Accordingly, when the portion that is the tip of the band and protrudes from the head is cut off as described above, it is possible to prevent the legs from being in the way. In addition, after the distal end of the band is cut off as described above, the leg returns to its original position due to its own elasticity, so that the leg is displaced away from the positioning portion. The leg portion makes it difficult for the leg portion to come into contact with an operator or other parts.

It is conceivable that the leg can be elastically deformed to a position corresponding to the positioning portion in the approaching / separating direction with respect to the positioning portion.
According to this configuration, the band cutter is pressed against the leg portion and elastically deforms the leg portion to the position corresponding to the positioning portion, so that the band cutter comes into contact with the head of the tie band positioned at the positioning portion. Then, in this state, using the band cutter, a portion protruding from the head portion of the band portion and protruding from the same head can be cut off leaving a cutting margin of a predetermined length. Therefore, the excision of the tip of such a band can be easily performed using the band cutter.

  When the leg is not elastically deformed, it may be considered that the leg is positioned farther away from the positioning portion than the tip of the band protruding from the head of the tie band positioned by the positioning portion. .

  According to this configuration, the leg portion returns to its original position due to its own elasticity after the excision of the distal end portion of the band portion. At this time, the leg portion is moved from the head of the tie band positioned by the positioning portion. It is located in the direction away from the above-mentioned positioning part rather than the tip part of the belt part which protrudes. For this reason, the tip of the band (the part of the cutting allowance) is further less likely to come into contact with an operator or other parts due to the legs.

It is conceivable that the leg portions are respectively provided on both sides of the positioning portion in the direction in which the wire harness extends.
According to this configuration, the contact of the worker and other parts with the tip portion (cut portion) of the band is suppressed by the legs provided on both sides of the positioning portion in the direction in which the wire harness extends. Is done. For this reason, it becomes more difficult for an operator or other parts to come into contact with the tip portion (cut portion) of the band portion.

  In the wire harness protector, the legs provided on both sides of the positioning portion in the direction in which the wire harness extends, the ties positioned by the positioning portion in a state of being shifted from each other in a circumferential direction of the wire harness. Protrude to the position sandwiching the head of the band. Further, the tips of the legs in the projecting direction overlap each other in the axial direction of the wire harness.

  According to this configuration, in the leg portions provided on both sides of the positioning portion in the direction in which the wire harness extends, the tips of the leg portions overlap in the axial direction of the wire harness. The contact of the operator and other parts with the tip of the part (the part of the cutting allowance) can be more effectively suppressed by the legs.

  According to the present invention, when a portion protruding from the head portion of the band portion inserted into the head portion of the tie band is cut away leaving a cut length of a predetermined length, the cut portion is removed. Contact with an operator and other parts can be suppressed.

FIG. 4 is a perspective view showing a protector to which a wire harness is fixed by a tie band. The perspective view showing the state where the tie band was removed from the protector. Sectional drawing which shows the state which looked at the protector, the wire harness, and the tie band from the arrow AA direction of FIG. FIG. 6 is a plan view showing a procedure for cutting off the tip of the band passed through the head of the tie band. FIG. 6 is a plan view showing a procedure for cutting off the tip of the band passed through the head of the tie band. FIG. 6 is a plan view showing a procedure for cutting off the tip of the band passed through the head of the tie band. FIG. 9 is a perspective view showing another example of the protector. FIG. 9 is a perspective view showing another example of the protector.

Hereinafter, an embodiment of a wire harness protector will be described with reference to FIGS.
As shown in FIGS. 1 to 3, in a vehicle or the like, a protector 2 for arranging a wire harness 1 along a predetermined position and protecting the wire harness 1 from peripheral components and the like is provided. 2, the wire harness 1 is fixed by a tie band 3. FIG. 1 shows a state in which the wire harness 1 is fixed to the protector 2 with a tie band 3, and FIG. 2 shows a state in which the tie band 3 is removed from the protector 2. FIG. 3 shows a state where the protector 2 and the wire harness 1 of FIG. 1 are viewed from the direction of arrows AA.

  As shown in FIG. 1, the protector 2 includes a wall portion 4 having a substantially L-shaped cross section, which is in a state along which the wire harness 1 comes into contact. The wall part 4 is provided with a tie band fixing part 5 for fixing the tie band 3. As shown in FIG. 2, the tie band fixing portion 5 has a recess 6 that functions as a positioning portion for positioning the head 3 a of the tie band 3. The recess 6 has a pair of inner surfaces 6a facing each other in a direction in which the wire harness 1 fixed to the protector 2 extends, and a bottom surface 6b orthogonal to the inner surfaces 6a.

  The tie band fixing portion 5 is formed with an insertion hole 7 extending in the vertical direction in FIG. 2 so as to be connected to the bottom surface 6 b of the recess 6. Then, a band 3b extending from the head 3a of the tie band 3 (FIG. 1) is passed through the insertion hole 7 from the recess 6 side, and the head 3a is inserted between the pair of inner side surfaces 6a in the recess 6 and the bottom surface. 6b. Thereby, the head 3a of the tie band 3 is positioned in the recess 6 by the pair of inner side surfaces 6a and the bottom surface 6b.

  Specifically, the head 3a is positioned in the direction in which the wire harness 1 extends by the pair of inner side surfaces 6a, and the head 3a is positioned in the circumferential direction of the wire harness 1 by the bottom surface 6b. Then, with the head 3a of the tie band 3 positioned as described above, the band 3b of the tie band 3 passed through the insertion hole 7 as shown in FIG. It is wrapped around.

  The tip of the band 3 b wound around the wall 4 and the wire harness 1 is inserted into an engagement hole 8 formed in the head 3 a of the tie band 3. Then, by pulling the tip of the band 3b inserted and inserted into the engaging hole 8, the wire harness 1 is fastened to the wall 4 by the band 3b, and the band 3b is connected to the head of the tie band 3. It engages with the part 3a so that it cannot be pulled out in the direction opposite to the insertion direction.

  Incidentally, a number of peaks (not shown) are formed in the band 3b of the tie band 3 at intervals in the direction in which the band 3b extends, and the engagement holes 8 in the head 3a of the tie band 3 A not-shown groove that can be engaged with the peak of the band 3b is formed. The groove allows the displacement of the peak in the direction in which the band 3b is inserted into the engagement hole 8, while restricting the displacement of the peak in a direction opposite to the displacement.

  The engagement between the groove and the peak, that is, the engagement of the band 3b with the head 3a prevents the band 3b from being pulled out from the head 3a of the tie band 3, and the wire harness 1 is connected to the wall of the protector 2. 4 is fixed. When the wire harness 1 is fixed to the wall 4 in this manner, the head 3a of the tie band 3 projects from the recess 6 to the side opposite to the wire harness 1 as shown in FIG. Become. That is, the width of the recess 6 in the approaching / separating direction with respect to the wire harness 1 is set so as to be as described above.

  Thereafter, a portion of the tip of the band 3b inserted into the engaging hole 8 in the head 3a of the tie band 3 and protruding from the head 3a is cut into a predetermined length by using a band cutter or the like. It is resected leaving a generation. It is to be noted that the reason why the cutting margin of a predetermined length is left at the front end of the band 3b is that the force in the direction of pulling out from the same head 3a acts on the band 3b otherwise the head 3a On the other hand, when the band 3b is displaced in the extracting direction, the engagement between the groove and the peak is weakened, and the band 3b may be pulled out from the head 3a.

  Next to the recess 6 of the tie band fixing portion 5 provided on the wall portion 4, specifically, both sides in the extending direction of the wire harness 1, elastic leg portions 9 are respectively directed toward the recess 6 side. And it is provided so that it may protrude in the direction away from the wall part 4 from the recessed part 6. When the legs 9 are not elastically deformed, they are positioned farther away from the wall 4 than the tip of the band 3b protruding from the head 3a of the tie band 3 positioned by the recess 6. Have been. Further, the leg 9 can be elastically deformed to a position corresponding to the recess 6 in the approaching / separating direction with respect to the recess 6.

Next, the operation of the protector 2 of the wire harness 1 will be described.
As shown in FIG. 4, in order to fix the wire harness 1 to the wall portion 4 of the protector 2 using the tie band 3, the band portion 3 b of the tie band 3 is engaged with the engagement hole 8 of the head portion 3 a of the tie band 3. , The end of the band 3b in the insertion direction protrudes largely from the head 3a. Then, the tip of the band portion 3b inserted into the head portion 3a of the tie band 3 and protruding from the head portion 3a is cut away, leaving a cutting length of a predetermined length.

  The excision of the tip of the band portion 3b in the tie band 3 is performed using a band cutter 10 shown in FIG. In the band cutter 10, the tip is pressed against the leg 9 shown by a two-dot chain line in FIG. 5 to displace the leg 9 to a position corresponding to the recess 6 as shown by a solid line. Elastically. The band cutter 10 has a front end portion of the band portion 3b and a portion protruding from the head portion 3a in a state where the front end portion thereof is in contact with the head portion 3a of the tie band 3 positioned in the recess 6. , And the portion can be cut away while leaving a cutting margin L1 of a predetermined length.

  When the tip of the band 3b, which protrudes from the head 3a, is cut off as described above, the leg 9 is elastically deformed so as to be displaced to a position corresponding to the recess 6. The leg 9 can be prevented from hindering the cutting of the band 3b. After the distal end of the band 3b is cut off, the leg 9 returns to its original position as shown in FIG. 6 due to its own elasticity, so that the leg 9 is displaced away from the recess 6. Therefore, the portion of the cutting margin L1 in the band portion 3b is less likely to come into contact with an operator or other parts by the leg portion 9.

According to the embodiment described in detail above, the following effects can be obtained.
(1) A portion of the tip of the band portion 3b inserted into the engaging hole 8 of the head portion 3a of the tie band 3 and protruding from the head portion 3a is cut away leaving a cut length L1 of a predetermined length. At this time, it is possible to prevent the portion of the cutting margin L1 from coming into contact with an operator or other parts.

  (2) The leg 9 can be elastically deformed to a position corresponding to the recess 6 in the direction of approaching and separating from the recess 6. For this reason, the tip of the band cutter 10 is positioned in the recess 6 by pressing the tip of the band cutter 10 against the leg 9 and elastically deforming the leg 9 to a position corresponding to the recess 6. The tie band 3 can be brought into contact with the head 3a of the tie band 3. Then, in this state, the band cutter 10 can be used to cut off the tip of the band 3b, which protrudes from the same head 3a, leaving a cutting length L1 of a predetermined length. Therefore, the excision of the tip of the band 3b can be easily performed using the band cutter 10.

  (3) When the leg 9 returns to its original position due to its own elasticity after the excision of the distal end of the band 3b, the leg 9 is positioned at the head of the tie band 3 by the recess 6. It is located farther away from the recess 6 than the tip of the band 3b protruding from the part 3a. For this reason, the front end portion (the portion of the cutting margin L1) of the band portion 3b is further less likely to come into contact with an operator or other parts by the leg portion 9.

  (4) The contact of the worker or other parts with the tip (the portion of the cutting margin L1) of the band 3b is caused by the legs 9 provided on both sides of the recess 6 in the direction in which the wire harness 1 extends. Is suppressed by For this reason, it is more difficult for an operator or other parts to come into contact with the tip portion (the portion of the cutting margin L1) of the band portion 3b.

The above embodiment can be modified as follows, for example.
As shown in FIG. 7, when the upright wall 11 is formed on the inner side surface 6 a and the bottom surface 6 b of the recess 6 at the end on the wire harness 1 side, and when the head 3 a of the tie band 3 is positioned by the recess 6, The head 3a may be in contact with the upright wall 11. In this case, when the wire harness 1 is fixed to the protector 2 by the tie band 3, in detail, the band portion 3b of the tie band 3 is inserted into the engagement hole 8 of the head 3a, and the wire harness 1 is fixed by the band portion 3b. When tightening the protector 2, the head 3 a of the tie band 3 can be prevented from shifting toward the wire harness 1 by the standing wall 11.

  As shown in FIG. 8, the legs 9 provided on both sides of the recess 6 in the direction in which the wire harness 1 extends, the legs 9 being displaced from each other in the circumferential direction of the wire harness 1 by the recess 6. The tie band 3 is projected so as to sandwich the head 3a of the tie band 3 to be positioned. Further, the tips of the legs 9 in the protruding direction are overlapped in the direction in which the wire harness 1 extends. By adopting such a leg 9, the contact of the worker and other parts with the tip (the portion of the cutting margin L1) of the band 3b of the tie band 3 can be more effectively suppressed by the leg 9. Can be.

The leg portions 9 shown in FIGS. 1 and 8 are provided on both sides of the recess 6 in the direction in which the wire harness 1 extends, but one of the leg portions 9 may be omitted.
-The cutting | disconnection of the front-end | tip part in the band part 3b may be made to use tools other than the band cutter 10.

  DESCRIPTION OF SYMBOLS 1 ... wire harness, 2 ... protector, 3 ... tie band, 3a ... head, 3b ... band part, 4 ... wall part, 5 ... tie band fixing part, 6 ... recess, 6a ... inner side surface, 6b ... bottom surface, 7 ... insertion hole, 8 ... engagement hole, 9 ... leg, 10 ... band cutter, 11 ... standing wall.

Claims (5)

A positioning portion for positioning the head of the tie band is provided on a wall portion in contact with the wire harness, and a band extending from the head of the tie band under a state where the head of the tie band is positioned by the positioning portion. A portion is wound around the wall and the wire harness, and the band is inserted into the head and engaged so as not to be pulled out from the head, whereby the wire harness is fixed to the wall. Wire harness protector
Next to the positioning portion in the wall portion, an elastic leg portion is provided so as to protrude toward the positioning portion side and further away from the wall portion than the positioning portion. Characteristic wire harness protector.   The wire harness protector according to claim 1, wherein the leg portion is capable of elastically deforming in a direction of approaching and separating from the positioning portion to a position corresponding to the positioning portion.   The leg portion, when not elastically deformed, is positioned in a direction away from the positioning portion, rather than a tip portion of a band portion protruding from the head of the tie band positioned by the positioning portion. The wire harness protector according to claim 1.   The wire harness protector according to any one of claims 1 to 3, wherein the leg portions are provided on both sides of the positioning portion in a direction in which the wire harness extends.   The legs provided on both sides of the positioning portion in the direction in which the wire harness extends, the head of the tie band being positioned by the positioning portion while being shifted from each other in a circumferential direction of the wire harness. 5. The wire harness protector according to claim 4, wherein the wire harness protector protrudes to a position sandwiching the wire harness, and the tips in the protruding direction overlap in a direction in which the wire harness extends.