JP7348869B2 - Corrugated joints, exterior parts equipped with corrugated joints, and corrugated joint structures - Google Patents

Description

The present invention relates to a corrugate connection part that can prevent the corrugate from coming off, an exterior component equipped with the corrugate connection part, and a corrugate connection structure.

Conventionally, corrugates and protectors have been known as devices for protecting electric wires. Corrugate is a flexible exterior component that covers electric wires, and has a function of protecting the electric wires. The protector is a non-flexible exterior component that covers the electric wire, and has the function of protecting the electric wire and regulating the route.

Generally, in the wiring route of a long electric wire, there are parts where only the protection of the electric wire is desired and parts where it is desired to protect the electric wire and also regulate the route. Therefore, a connection point between the corrugate and the protector is provided, and at the connection point, the end of the corrugation is placed inside the protector. Patent Document 1 discloses a configuration in which a rib is provided inside a protector and the rib fits into a recess of a corrugated gate.

Incidentally, the corrugate is provided with a cut (hereinafter referred to as a "slit") along the axial direction for passing an electric wire through the corrugate. Therefore, when the two sides of the slit overlap each other due to the deformation of the corrugate, the outer diameter of the corrugate becomes smaller, and the amount of engagement of the ribs fitted into the recesses of the corrugate becomes smaller. In this case, when the corrugate is bent, there is a problem in that the ribs disengage the hook and the corrugate is pulled out in the axial direction.

JP2016-27770A

In view of such problems, an object of the present invention is to provide a corrugate connection part that can prevent the corrugate from coming off, an exterior component equipped with the corrugate connection part, and a corrugate connection structure.

The present invention relates to a corrugate connecting part that connects ends of a corrugate, and includes a fitting part that fits the end part of the corrugate, and a lid part that closes a mounting opening for mounting the corrugate to the fitting part. The fitting part has a rib that fits into the recess of the corrugate, and an arrangement opening through which a linear body extending from the inside of the corrugate is inserted, and the fitting part has a rib that fits into the recess of the corrugate, and an opening that faces the distal end surface of the installed corrugate. a wall portion, a deformation suppressing portion is provided at a peripheral edge of the arrangement opening in the wall portion, protruding toward the inside of the attached corrugate, and suppressing deformation of the corrugate , and in the deformation suppressing portion. A rear portion in the mounting direction, which is the rear side in the mounting direction in which the corrugate is mounted on the fitting portion, is formed in a tapered shape that is inclined with respect to the mounting direction.

Further, the present invention provides a corrugate connection structure including an exterior component provided with a corrugate connection part for connecting ends of a corrugate, and the corrugate through which a linear body is inserted, wherein the corrugate connection part includes: A fitting part that fits an end of the corrugate, and a lid part that closes a mounting opening for attaching the corrugate to the fitting part, and the fitting part has a rib that fits into a recess of the corrugate. and a wall portion having an arrangement opening through which the linear body is inserted and facing the distal end surface of the installed corrugate, and a wall portion having an arrangement opening through which the linear body is inserted, and a wall portion facing the distal end surface of the installed corrugate, and the installed corrugate is attached to a peripheral edge of the arrangement opening in the wall portion. A deformation suppressing portion protruding toward the inside of the corrugate is provided, the deformation suppressing portion enters the inside from the tip of the corrugate, and the corrugate has a slit extending in the axial direction formed in a part of the circumferential direction of the cross section. , it is characterized in that it is worn in a direction that is on the rear side in the mounting direction .

Further, the present invention is characterized in that it is an exterior component provided with the above-mentioned corrugated connection portion.
The above-mentioned linear bodies include electric wires, electric wire bundles, electric wire cables, harnesses, optical fiber cables, and the like.
The above-mentioned rear portion of the deformation suppressing portion in the mounting direction refers to, for example, the upper portion of the deformation suppressing portion when the device is mounted from the top to the bottom.

With this invention, it is possible to prevent the corrugate from coming off.
Specifically, when an external force is applied to the corrugate, both sides of the slit overlap and the corrugate tries to deform in the diametrical direction, but the deformation suppressing part that protrudes toward the inside of the corrugate prevents the inner surface of the corrugate from deforming. It will come into contact with. In this manner, since the deformation suppressing portion restricts the deformation of the corrugate in the radial direction from the inside, it is possible to prevent the corrugate from deforming in the diametrical direction due to the two sides of the slit overlapping each other. Therefore, it is possible to prevent a problem in which the corrugate is deformed in the diametrical direction due to the action of an external force, the rib fitted into the recess comes off, and the corrugate comes out in the axial direction.

Further, in the deformation suppressing part, the rear part in the mounting direction, which is the rear part in the mounting direction in which the corrugate is mounted to the fitting part, is formed in a tapered shape that is inclined with respect to the mounting direction, so that it is smooth and prevents damage. Corrugate can be installed without having to do anything.

Specifically , the deformation suppressing part is arranged in the circumferential direction at the tip of the corrugate so that the deformation suppressing part provided at the peripheral edge of the arrangement opening in the wall part protrudes toward the inside of the corrugate in the installed state. The corrugate will be installed by passing a part of the corrugate through it. Note that when the deformation suppressing portion passes through a part of the tip of the corrugate in the circumferential direction, the corrugate at that location is deformed so as to be turned over.

Therefore, since the rear portion of the deformation suppressing portion in the mounting direction, where the corrugated material to be mounted begins to come into contact, has a tapered shape that is inclined with respect to the mounting direction, it gradually deforms as the corrugate is mounted. Therefore, compared to a case where there are surfaces facing each other in the mounting direction, the corrugate deforms smoothly due to the deformation suppressing portion, so that the load acting on the corrugate can also be reduced. Therefore, the corrugate can be installed smoothly, and damage caused by passing through the deformation suppressing portion can be prevented.

Further, when the corrugate is mounted, the corrugate is pressed in the axial direction along the tapered shape of the deformation suppressing portion, so the resistance when pushing the corrugate gradually increases. Thereafter, the pressing load applied to the corrugated gate when it overcomes the deformation suppressing portion is released, so that an appropriate sense of moderation can be obtained. Therefore, completion of the mounting work can be recognized, and work efficiency can be improved.

Further, as an aspect of the present invention, in the deformation suppressing portion, a front portion in the mounting direction, which is the front side in the mounting direction, may be formed in a slip-off prevention shape that prevents the corrugate from slipping off.
The above-mentioned detachment refers to the fact that the corrugate mounted in the mounting direction moves in the opposite direction to the mounting direction (counter-mounting direction) and comes off unnecessarily.

The detachment prevention shape is a shape that protrudes in a direction intersecting the detachment direction so as to resist detachment of the corrugate, and preferably an opposing shape that intersects with the detachment direction at an angle of 45 degrees or more. It is.

According to this invention, when the corrugate is installed, the slip-off prevention shape comes into contact with the inner surface of the corrugate that has climbed over the deformation suppressing portion. Therefore, it is possible to prevent the corrugate from coming off in the opposite direction. Note that the slip-out prevention shape is a shape that is in contact with the inner surface of the corrugate and has a locking end portion for pressing the inner surface from inside.

Further, as an aspect of the present invention, the arrangement opening may be configured as a U-shaped opening communicating with the mounting opening, and the deformation suppressing portions may be arranged on both sides of the U-shaped opening.

With this invention, deformation can be suppressed by coming into contact from the inside with the inner surfaces of both opposing sides of the corrugate that are about to deform due to the action of an external force, thereby ensuring that both sides of the corrugate that sandwich the slit overlap each other and deform. can be prevented. Therefore, it is possible to prevent the corrugate from coming off in the axial direction.

Further, as an aspect of the present invention, rear portions in the mounting direction of the deformation suppressing portions disposed on both sides of the U-shaped opening gradually widen along the mounting direction when viewed from a direction facing the wall portion. It may be formed in a V-shape.
The above-mentioned V-shape is a shape that gradually separates along the mounting direction in a direction intersecting the mounting direction, and may be an inclined surface or an inclined curved surface.

With this invention, deformation can be suppressed by controlling the inner surface of the rear side of the corrugate from the inside, where the half cross section on the rear side of the corrugate has a tapered shape toward the rear side of the installation direction, so that the slit of the corrugate can be more reliably controlled. It is possible to prevent the two sides sandwiching the two sides from overlapping and deforming each other. Therefore, it is possible to prevent the corrugate from coming off in the axial direction.

Further, as an aspect of the present invention, the deformation suppressing portion may extend from the mounting port side with respect to the central axis of the corrugated corrugate mounted thereon to the bottom wall portion side facing the mounting port.
According to this invention, deformation can be suppressed by regulating the inner surface of the corrugate from the inside, which spans the rear side in the mounting direction and the front side in the mounting direction, so it is possible to more reliably prevent the two sides of the corrugate that sandwich the slit from overlapping each other and deforming. . Therefore, it is possible to prevent the corrugate from coming off in the axial direction.

Moreover, as an aspect of the present invention, the deformation suppressing portion may be formed along both edges of a linear portion of the U-shaped opening.
According to this invention, it is possible to prevent the deformation suppressing portion from interfering with the insertion of the linear body through the U-shaped opening. Further, since the linear body passing through the U-shaped opening is arranged along the deformation suppressing portion, the linear body and the edge of the U-shaped opening do not come into point contact. Therefore, it is possible to prevent the linear body from being damaged by friction.

Further, as an aspect of the present invention, the inner end surface of the deformation suppressing portion on the side of the U-shaped opening may be planar along the mounting direction and the direction facing the wall portion.
According to this invention, since the linear body passing through the U-shaped opening is arranged along the inner end surface of the deformation suppressing part, the linear body and the edge of the U-shaped opening do not come into point contact, and the inner end surface of the deformation suppressing part It becomes a line contact along . Therefore, even if the deformation suppressing portion is provided, it is possible to prevent the durability of the linear body from decreasing.

Further, as an aspect of the present invention, the distance between the rib closest to the wall side and the deformation suppressing portion protruding from the wall portion is 0.0. It may be set to 5 times or more and 1.5 times or less.

According to this invention, the deformation suppressing portion can be arranged inside the tip portion of the corrugate.
To explain in detail, the corrugate whose tip end face faces the wall portion provided with the deformation suppressing portion has a rib fitted into a recessed portion to restrict its axial position. The distal end surface of the corrugate facing the wall portion provided with the deformation suppressing portion may be either a concave portion or a convex portion. Then, the distance from the wall will differ depending on whether the distal end surface of the corrugate, which fits into the recess and whose axial position is regulated by the rib, is a recess or a convex portion. However, the distance between the rib closest to the wall and the deformation suppressing portion protruding from the wall is at least 0.5 times the axial length of the concave and convex portions of the corrugate. By setting it to 5 times or less, the deformation suppressing portion can be placed inside the tip of the corrugate regardless of whether the tip surface is a concave portion or a convex portion. In other words, it is possible to prevent the corrugate from coming off in the axial direction, regardless of the position of the end face of the corrugate.

Further, as an aspect of the present invention, the corrugate may be mounted such that a slit extending in the axial direction formed in a part of the circumferential direction of the cross section is on the rear side in the mounting direction.
According to this invention, when the corrugate is installed, the pressure load when riding over the deformation suppressing part is not applied to the rear side of the corrugate in the installation direction, and the displacement of the slit can be suppressed, so that both sides of the corrugate sandwiching the slit overlap each other and deform. This can be prevented. Therefore, it is possible to prevent the corrugate from coming off in the axial direction.

ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide a corrugated connection part, an exterior component equipped with a corrugated connection part, and a corrugated connection structure that can prevent the corrugation from coming off.

A perspective view of a corrugated connection part. FIG. 3 is a perspective view of a state in which a lid part is attached to a fitting part. FIG. 3 is a perspective view of a state in which the lid section is removed from the fitting section. A plan view of a fitting part. A bottom view of the lid. AA sectional view in FIG. 4. BB sectional view in FIG. 4. The figure which shows the relationship between the partial shape of a corrugate, and the partial shape of a fitting part. FIG. 3 is a cross-sectional explanatory diagram illustrating the function of the deformation suppressing section when corrugated is installed. FIG. 9 is a cross-sectional perspective view seen from the direction of arrow C in FIG. 9;

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.
FIG. 1 shows a perspective view of the corrugated connection part 10, FIG. 2 shows a perspective view of the lid part 30 attached to the fitting part 20, and FIG. 3 shows a state of removing the lid part 30 from the fitting part 20. A perspective view is shown. Further, FIG. 4 shows a plan view of the fitting part 20, and FIG. 5 shows a bottom view of the lid part 30.

Further, FIG. 6 shows a sectional view taken along line AA in FIG. 4, FIG. 7 shows a sectional view taken along line BB in FIG. 4, and FIG. FIG. 9 shows a cross-sectional explanatory view for explaining the function of the deformation suppressing part 29 when the corrugate 4 is installed, and FIG. 10 shows a cross-sectional perspective view seen from the direction of arrow C in FIG.

Note that FIG. 9(a) shows the state before the end of the corrugate 4 is attached to the fitting part 20, and FIG. 9(b) shows the state while the end of the corrugate 4 is being attached to the fitting part 20. FIG. 9(c) shows the state after the end of the corrugated gate 4 is attached to the fitting part 20.

In addition, in FIGS. 1 and 8 to 10, only a part of the vicinity of the tip of the corrugated gate 4 is shown, and in FIGS. 1 to 6 and FIGS. 8 to 10, the vicinity of the corrugated connection part 10 of the protector Only a portion of the figure is shown.

The corrugate 4 is a flexible exterior component that covers the wire harness 1 (hereinafter referred to as harness 1), and has a protective function for the harness 1. The corrugate 4 is formed into a shape in which a concave portion 41 and a convex portion 42 are continuous in the axial direction by arranging annular small diameter portions and large diameter portions alternately. Note that the harness 1 is an electric wire bundle made up of a plurality of electric wires.

The protector 5 is a non-flexible exterior component that covers the harness 1 and has the function of protecting the harness 1 and regulating the route. The protector 5 includes a protector body 2 through which the harness 1 is inserted, and a lid 3 that closes the opening of a groove in which the harness 1 is accommodated. The corrugated connection part 10 is a part of the end side of the protector 5, and includes a fitting part 20, which is a part of the end side of the protector body 2, and a lid part, which is a part of the end side of the lid body 3. 30.

As shown in FIG. 3, the fitting part 20 has a pair of side walls 21 arranged in parallel, and a bottom wall 22 that connects the bottom ends of the pair of side walls 21. The pair of side wall portions 21 are largely open without a wall on the entrance side, thereby forming a mounting port 20a that communicates the outside and the inside of the fitting portion 20.

Further, in the fitting part 20, an engaging part 23 is provided on the outer surface of the pair of side wall parts 21 on the mounting opening 20a side. The engaging portion 23 includes a pair of supporting pieces 23a arranged parallel to each other, and an engaging piece 23b connecting the ends of both supporting pieces 23a. A rectangular engagement hole 23c is formed in the engagement piece 23b along the outer surface of the side wall portion 21, and this engagement hole 23c penetrates from the mounting opening 20a side toward the bottom wall portion 22 side. ing.

Further, in the fitting portion 20, ribs 24 (24a, 24b, 24c, 24d) are provided on the inner surfaces of the pair of side wall portions 21 and bottom wall portion 22. The ribs 24a provided at the end portions are provided on one end side in the axial direction of the pair of side wall portions 21 and the bottom wall portion 22, and the ribs 24b, ribs 24c, and ribs 24d having the same shape are placed in order at a constant interval. It is set in. The rib 24 is formed in a shape that extends from the mounting port 20a side of one side wall portion 21, across the bottom wall portion 22, and continues to the mounting port 20a side of the other side wall portion 21. When viewed from the axial direction, the rib 24 has a U-shape with linear portions parallel to each other.

Further, in the fitting portion 20, a wall portion 28 is provided on the other axial end side of the pair of side wall portions 21 and the bottom wall portion 22. An arrangement opening 28a is formed in the wall portion 28, and the arrangement opening 28a is formed in a shape in which a linear passage communicating with the mounting opening 20a and a circular hole communicating with the linear passage are connected. Therefore, as shown in FIG. 7, when the wall portion 28 is viewed from the axial direction, it has a U-shape with linear portions 28b parallel to each other. Note that two deformation suppressing portions 29 are provided at the peripheral edge of the arrangement opening 28a in the wall portion 28.

On the other hand, the lid section 30 has an upper wall section 31 that closes the mounting opening 20a of the fitting section 20, and a pair of side wall sections 32 that extend perpendicularly from both ends of the upper wall section 31. A through hole 31a is provided in the upper wall portion 31 at a position shifted from the center portion toward the other end in the axial direction. For this reason, the worker can visually recognize the end of the corrugated gate 4 mounted through the through hole 31a.

Further, the lid portion 30 is provided with claw plates 33 on a pair of side wall portions 32. The claw plate 33 is formed to extend the side wall portion 32, and a claw portion 33b that projects outward is provided at the tip portion thereof. Therefore, when the claw plate 33 is inserted into the engagement hole 23c of the fitting portion 20 and pushed further, the claw portion 33b will be caught on the exit portion of the engagement hole 23c and will be completely locked.

Furthermore, the lid part 30 is provided with ribs 34 (34a, 34b, 34c, 34d) on the inner surface of the upper wall part 31. The rib 34a is provided at one end in the axial direction of the upper wall portion 31, and a rib 34b, a rib 34c, and a rib 34d having the same shape are provided in this order at regular intervals. The rib 34 is formed in a shape that extends from one end in the width direction of the upper wall portion 31 to the other end in the width direction. When the rib 34 is viewed from the axial direction, it has an arcuate shape with high end portions and low central portion.

With this configuration, when the lid part 30 is attached to the fitting part 20, the ribs 24 (24a, 24b, 24c, 24d) of the fitting part 20 and the ribs 34 (34a, 34b, 34b, 34c, 34d) are combined to form a substantially circular corrugated locking portion. As shown in FIG. 10, these corrugate locking portions fit into the recesses 41 of the corrugate 4 and function to prevent the corrugate 4 from coming off in the axial direction.

As described above, two deformation suppressing parts 29 are provided at the peripheral edge of the arrangement opening 28a in the wall part 28. These deformation suppressing portions 29 protrude from the inner surface 281 of the wall portion 28 toward one end in the axial direction. Here, the mounting direction α of the corrugated gate 4 will be described as a direction from the mounting opening 20a side toward the bottom wall portion 22 side, and the opposite direction will be described as a counter-mounting direction β.

The deformation suppressing portion 29 is formed in a tapered shape that is inclined with respect to the mounting direction α of the corrugate 4.
Specifically, each deformation suppressing portion 29 has a planar top end surface 291, and the height from the inner surface 281 of the wall portion 28 to the top end surface 291 of the deformation suppressing portion 29 is equal to the height of the mounting opening 20a. It is formed in a tapered shape that gradually becomes higher as it goes from the side toward the bottom wall portion 22 side (from the top to the bottom in FIG. 6).

Note that the top end surface 291 does not have to be tapered all the way from the end on the mounting port 20a side to the end on the bottom wall part 22 side, and at least the rear side in the mounting direction α. It is sufficient if 29D has a tapered shape.

Further, in the deformation suppressing portion 29, a front portion 29E in the mounting direction, which is the front side of the corrugated gate 4 in the mounting direction α, is formed in a shape that prevents it from coming off.
Specifically, each deformation suppressing portion 29 has a locking end portion 292 extending from the inner surface 281 of the wall portion 28 toward one end in the axial direction, and the locking end portion 292 is attached to the corrugate 4. It comes into contact with the inner surface 43 (more precisely, the inner surface of the recess 41).

The locking end portion 292 can restrict the inner surface 43 of the corrugate 4 from inside even if the corrugate 4 attempts to move in the opposite mounting direction β. In this way, the detachment prevention shape is a shape that is in contact with the inner surface 43 of the corrugated gate 4 and has a locking end 292 for regulating the inner surface 43 from the inside. Note that as long as the locking end 292 can come into contact with the inner surface 43 when the corrugate 4 is deformed, the locking end 292 may face the inner surface 43 and be slightly separated from it.

Furthermore, the deformation suppressing parts 29 are arranged on both sides of the arrangement opening 28a formed in the wall part 28. Specifically, one of the deformation suppressing parts 29 is arranged on the left side of the arrangement opening 28a when viewed from the direction facing the wall part 28 (the direction from one axial end side to the other axial end side), The other one is arranged on the right side of the arrangement opening 28a. Note that if the direction that is perpendicular to the mounting direction α of the corrugated gate 4 and also perpendicular to the direction facing the wall portion 28 is defined as the cross direction γ, each deformation suppressing portion 29 is It can be said that they are arranged in each of the intersecting directions γ.

Further, the deformation suppressing portion 29 is formed in a V-shape (see the two-dot chain line F in FIG. 7), with a rear portion 29D in the mounting direction gradually expanding along the mounting direction α.
Specifically, each deformation suppressing portion 29 has an arcuate outer end surface 293, and the outer end surfaces 293 are curved in a direction that separates them from each other. Therefore, at the rear part 29D in the mounting direction α, that is, the part on the opposite side of the mounting direction α of the deformation suppressing part 29, as seen from the direction facing the wall part 28, gradually along the mounting direction α. It becomes a widening V-shape.

Further, the deformation suppressing portion 29 extends from the mounting opening 20a side to the bottom wall portion 22 side with respect to the central axis G of the corrugated gate 4. Specifically, each deformation suppressing portion 29 has a planar inner end surface 294 along the linear portion 28b, and this inner end surface 294 extends from the mounting port 20a side relative to the central axis G to the bottom wall portion 22. It extends to the sides so as to straddle the central axis G.

Note that the inner end surface 294 is formed in a planar shape along the mounting direction α and the direction facing the wall portion 28 . Therefore, the inner end surface 294 of one deformation suppressing part 29 and the inner end surface 294 of the other deformation suppressing part 29 are arranged parallel to each other with the arrangement opening 28a in between.

Further, in the deformation suppressing portion 29, the distance D between the rib 24d closest to the wall portion 28 side and the deformation suppressing portion 29 protruding from the wall portion 28 is the axial length d of the concave portion 41 and the convex portion 42 in the corrugate 4. It is set to 0.5 times or more and 1.5 times or less. Specifically, the distance D between the apex 24p of the rib 24d and the apex 29p of the deformation suppressing portion 29 is 0.5d or more with respect to the axial length d of the joint of the corrugate 4, which is the combination of the concave portion 41 and the convex portion 42. Set it so that it is 1.5d or less.

Further, the deformation suppressing portion 29 has an arcuate outer end surface 293, and the outer end surfaces 293 are formed in a shape curved in a direction that separates them from each other. Therefore, it can be said that the mounting direction front portion 29E, which is the front side in the mounting direction α, has an inverted V-shape that gradually narrows along the mounting direction α when viewed from the direction facing the wall portion 28. In other words, it can be said that it has a V-shape that gradually widens along the anti-installation direction β.

Further, one deformation suppressing portion 29 and the other deformation suppressing portion 29 are formed such that their respective outer end surfaces 293 follow the inner surface 43 of the corrugate 4 (more precisely, the inner surface of the recess 41). Each outer end surface 293 constitutes a part of a cylindrical surface having a diameter comparable to the inner diameter d of the corrugate 4 with the central axis G of the corrugate 4 as the center.

Note that the area of each outer end surface 293 is preferably made as large as possible if productivity of the fitting portion 20 and ease of mounting of the corrugated gate 4 can be ensured. Since deformation can be suppressed by widely regulating the inner surface 43 of the corrugate 4 from the inside, it is possible to more reliably prevent both sides of the corrugate 4 that sandwich the slit 45 from overlapping each other and deforming.

In such a corrugated connection part 10, as shown in FIG. 9(a), the position of the corrugated gate 4 is adjusted so that the tip end surface 44 of the corrugated gate 4 and the inner surface 281 of the wall part 28 are in contact with each other. Then, it is necessary to push this corrugate 4 into the fitting part 20. Then, the ribs 24 of the fitting part 20 fit into each of the recesses 41 of the corrugate 4.

Thereafter, as shown in FIG. 9(b), when the corrugate 4 is pushed in, the front part of the corrugate 4 in the mounting direction to the lateral part in the mounting direction (both side parts across the arrangement opening 28a) are respectively disposed in the deformation suppressing part 29. Since it rides up along the top end surface 291, the corrugated gate 4 is gradually pressed toward one side in the axial direction. Therefore, as the corrugate 4 is pushed in, the resistance will gradually increase.

Then, as shown in FIG. 9(c), when the corrugate 4 is further pushed in, the deformation suppressing portion 29 changes from the front part of the corrugate 4 in the mounting direction to the lateral part in the mounting direction (portions on both sides of the arrangement opening 28a). , the pressing load applied to the corrugated gate 4 is suddenly released, and an appropriate sense of moderation can be obtained.
At this time, as shown in FIG. 10, the locking end 292 and the outer end surface 293 of the deformation suppressing part 29 come into contact with the inner surface 43 of the corrugate 4 (more precisely, the inner surface of the recess 41). These locking end portions 292 and outer end surfaces 293 restrict the inner surface 43 of the corrugated gate 4 from the inside.

Note that the corrugate 4 is preferably mounted in such a direction that the axially extending slit 45 formed in a part of the circumferential direction of the cross section is on the rear side (β side) in the mounting direction α. By configuring as described above, a pressing load when climbing over the deformation suppressing portion 29 is hardly applied to the rear side of the corrugated gate 4 in the mounting direction, and displacement of the slit 45 can be suppressed. In other words, by arranging the slit 45 at a position where a pressing load is less likely to be applied, both sides of the slit 45 are less likely to shift from each other in the radial direction, and both sides of the corrugated gate 4 sandwiching the slit 45 can be prevented from overlapping each other and deforming.

As described above, the corrugate connecting section 10 that connects the ends of the corrugate 4 includes a fitting section 20 that fits the end of the corrugate 4, and a lid that closes the mounting opening 20a for attaching the corrugate 4 to the fitting section 20. The fitting part 20 has a rib 24 that fits into the recess 41 of the corrugate 4 and an arrangement opening 28a through which the harness 1 extending from the inside of the corrugate 4 is inserted. A deformation suppressing portion 29 is provided at the peripheral edge of the arrangement opening 28a in the wall portion 28 to protrude toward the inside of the corrugated gate 4 installed and to suppress deformation of the corrugated gate 4. Therefore, it is possible to prevent the corrugate 4 from coming off.

To be more specific, when an external force acts on the corrugate 4, both sides sandwiching the slit 45 overlap each other and the corrugate 4 tries to deform in the diameter reduction direction, but the deformation suppressing part 29 protruding toward the inside of the corrugate 4 tries to deform. It comes into contact with the inner surface 43 of the corrugate 4. In this way, since the deformation suppressing portion 29 restricts the deformation of the corrugated gate 4 in the radially inward direction from the inside, it is possible to prevent the corrugated gate 4 from deforming in the diametrical direction due to the two sides of the slit 45 overlapping each other. Therefore, it is possible to prevent the problem that the corrugate 4 deforms in the diametrical direction due to the action of an external force, the rib 24 fitted into the recess 41 comes off, and the corrugate 4 slips out in the axial direction.

In addition, in the deformation suppressing part 29, the rear part 29D in the mounting direction, which is the rear part in the mounting direction in which the corrugate 4 is mounted on the fitting part 20, is formed in a tapered shape that is inclined with respect to the mounting direction α, so that it is smooth. Moreover, the corrugate 4 can be installed without being damaged.

To be more specific, the deformation suppressing part 29 is arranged around the distal end of the corrugate 4 so that the deformation suppressing part 29 provided at the circumferential edge of the arrangement opening 28a in the wall part 28 protrudes toward the inside of the corrugate 4 in the installed state. The corrugate 4 will be installed by passing through a part of the direction.

In addition, when the deformation suppressing part 29 passes through a part of the tip of the corrugated gate 4 in the circumferential direction, the corrugated gate 4 at the corresponding part is deformed so as to overcome the deformation suppressing part 29 and turn over. Therefore, since the rear portion 29D of the deformation suppressing portion 29 in the mounting direction, with which the corrugated gate 4 to be mounted begins to abut, has a tapered shape that is inclined with respect to the mounting direction α, it gradually deforms as it is mounted.

Therefore, since the corrugate 4 deforms smoothly by the deformation suppressing portion 29, the load acting on the corrugate 4 can also be reduced compared to a case where there are surfaces facing in the mounting direction α. Therefore, the corrugate 4 can be installed smoothly, and damage caused by passage of the deformation suppressing portion 29 can be prevented.

Further, when the corrugate 4 is attached, the corrugate 4 is pressed in the axial direction along the tapered shape of the deformation suppressing portion 29, so that the resistance when pushing the corrugate 4 is gradually increased. Thereafter, since the pressing load applied to the corrugated gate 4 when it overcomes the deformation suppressing portion 29 is released, an appropriate sense of moderation can be obtained. Therefore, completion of the mounting work can be recognized, and work efficiency can be improved.

In addition, in the deformation suppressing portion 29, the front portion 29E in the mounting direction, which is the front side in the mounting direction α, is formed with a locking end portion 292 that prevents the corrugated gate 4 from coming off. The locking end portion 292 comes into contact with the inner surface of the corrugated gate 4 that has passed over the suppressing portion 29 . Therefore, it is possible to prevent the corrugated gate 4 from coming off in the opposite mounting direction β.

Furthermore, the arrangement opening 28a is configured with a U-shaped opening that communicates with the mounting opening 20a, and the deformation suppressing parts 29 are arranged on both sides of the U-shaped opening, so that they do not deform due to the action of external force. The deformation can be suppressed by coming into contact with the inner surfaces 43 on both opposing sides of the corrugated gate 4 from the inside. Therefore, it is possible to reliably prevent both sides of the corrugated gate 4 sandwiching the slit 45 from overlapping and deforming each other. Therefore, it is possible to prevent the corrugate 4 from coming off in the axial direction.

In addition, the mounting direction rear portions 29D on the opposite mounting direction β side of the deformation suppressing portions 29 disposed on both sides of the U-shaped opening, that is, on each of the intersecting directions γ of the U-shaped opening, are arranged in the direction opposite to the wall portion 28. When viewed from above, it is formed in a V-shape that gradually expands along the mounting direction α, and the half cross section on the rear side in the mounting direction tapers toward the rear side in the mounting direction of the corrugate 4. Since the surface 43 can also be controlled from the inside to suppress deformation, it is possible to more reliably prevent both sides of the corrugated gate 4 that sandwich the slit 45 from overlapping each other and deforming. Therefore, it is possible to prevent the corrugate 4 from coming off in the axial direction.

Further, the deformation suppressing portion 29 extends from the mounting port 20a side to the bottom wall portion 22 side with respect to the central axis G of the corrugated corrugate 4 mounted, and extends from the inner surface of the corrugated gate 4 extending between the rear side in the mounting direction and the front side in the mounting direction. Since the deformation can be suppressed by regulating the corrugate from the inside, it is possible to more reliably prevent the two sides of the corrugated gate 4 that sandwich the slit 45 from overlapping each other and deforming. Therefore, it is possible to prevent the corrugate 4 from coming off in the axial direction.

Further, since the deformation suppressing portion 29 is formed along both edges of the linear portion 28b in the U-shaped opening, it is possible to prevent the deformation suppressing portion 29 from interfering with the insertion of the harness 1 through the U-shaped opening. .
Further, since the harness 1 passing through the U-shaped opening is arranged along the deformation suppressing portion 29, the harness 1 and the edge of the U-shaped opening do not come into point contact. Therefore, damage to the harness 1 due to friction can be prevented.

In addition, since the inner end surface 294 on the side of the U-shaped opening in the deformation suppressing portion 29 has a planar shape along the mounting direction α and the direction facing the wall portion 28, the harness 1 passing through the U-shaped opening can pass through the deformation suppressing portion 29. Since the harness 1 is disposed along the inner end surface 294 , the harness 1 and the edge of the U-shaped opening do not come into point contact, but instead make line contact along the inner end surface 294 of the deformation suppressing portion 29 . Therefore, even if the deformation suppressing portion 29 is provided, it is possible to prevent the durability of the harness 1 from decreasing.

Further, the distance D between the rib 24d closest to the wall 28 and the deformation suppressing portion 29 protruding from the wall 28 is 0.5 times the axial length of the recess 41 and the projection 42 in the corrugate 4. Since the above value is set to 1.5 times or less, the deformation suppressing portion 29 can be placed inside the tip portion of the corrugate 4.

To explain in detail, in the corrugate 4 whose tip end face faces the wall 28 provided with the deformation suppressing portion 29, the rib 24 fits into the recess 41, and its axial position is regulated. The distal end surface of the corrugated gate 4 facing the wall portion 28 provided with the deformation suppressing portion 29 may be either a recessed portion 41 or a convex portion 42 . Then, the distance from the wall 28 changes depending on whether the distal end surface of the corrugated gate 4, which fits into the recess 41 and whose axial position is regulated by the rib 24, is the recess 41 or the protrusion 42.

However, the distance D between the rib 24d closest to the wall 28 and the deformation suppressing portion 29 protruding from the wall 28 is 0.5 times the axial length of the recess 41 and the projection 42 in the corrugate 4. By setting the above value to 1.5 times or less, the deformation suppressing portion 29 can be placed inside the tip portion of the corrugate 4 regardless of whether the tip surface is the concave portion 41 or the convex portion 42. . That is, irrespective of the position of the end face of the corrugate 4, it is possible to prevent the corrugate 4 from coming off in the axial direction.

Further, the corrugate 4 is installed with a slit 45 extending in the axial direction formed in a part of the circumferential direction of the cross section facing toward the rear side in the installation direction α. Since the pressing load when climbing over the deformation suppressing portion 29 is less likely to be applied to the rear side in the direction, and the displacement of the slit 45 can be suppressed, it is possible to prevent the two sides of the corrugated gate 4 that sandwich the slit 45 from overlapping each other and deforming. Therefore, it is possible to prevent the corrugate 4 from coming off in the axial direction.

In the correspondence between the configuration of this invention and the above-described embodiments, the corrugate of this invention corresponds to corrugate 4,
Similarly below,
The corrugated connection portion corresponds to the corrugated connection portion 10,
The fitting part corresponds to the fitting part 20,
The mounting port corresponds to the mounting port 20a,
The lid portion corresponds to the lid portion 30,
The recessed part of the corrugate corresponds to the recessed part 41,
The rib corresponds to rib 24,
The linear body corresponds to harness 1,
The arrangement opening corresponds to the arrangement opening 28a,
The wall portion corresponds to the wall portion 28,
The deformation suppressing part corresponds to the deformation suppressing part 29,
The rear part in the mounting direction corresponds to the rear part 29D in the mounting direction,
The front part in the mounting direction corresponds to the front part 29E in the mounting direction,
The removal prevention shape corresponds to the locking end 292,
The crossing direction corresponds to the crossing direction γ,
The central axis corresponds to the central axis G,
The straight portion corresponds to the straight portion 28b,
The inner end surface corresponds to the inner end surface 294,
The nearest rib corresponds to rib 24d,
Exterior parts are compatible with Protector 5,
Although the slit corresponds to the slit 45, the present invention is not limited to only the configuration of the above-described embodiment, and many embodiments can be obtained.

In the above-described embodiment, the harness 1, which is a wire bundle made up of a plurality of wires, is inserted through the corrugated gate 4 and the protector 5. A wire cable, an optical fiber cable, etc. coated with the corrugated wire may be inserted through the corrugated gate 4 and the protector 5.

1...Harness 4...Corrugate 5...Protector 10...Corrugate connection part 20...Fitting part 20a...Attachment port 24...Rib 24d...Rib 28...Wall part 28a...Arrangement opening 28b...Straight portion 29...Deformation suppressing part 29D...Attachment Direction rear part 29E... Mounting direction front part 30... Lid part 41... Recessed part 45... Slit 292... Locking end 294... Inner end surface γ... Crossing direction G... Central axis

Claims (10)

A corrugate connection part that connects the ends of a corrugate,
a fitting part that fits the end of the corrugate;
The fitting part is provided with a lid part that closes a mounting opening for mounting the corrugate,
The fitting portion includes:
a rib that fits into the recess of the corrugate;
It has an arrangement opening through which a linear body extending from the inside of the corrugate is inserted, and a wall portion facing the distal end surface of the attached corrugate,
At the peripheral edge of the arrangement opening in the wall,
A deformation suppressing part is provided that protrudes toward the inside of the attached corrugate and suppresses deformation of the corrugate ,
In the deformation suppressing part, a rear part in the mounting direction, which is the rear part in the mounting direction in which the corrugate is mounted to the fitting part, is formed in a tapered shape that is inclined with respect to the mounting direction.
Corrugated connection. 2. The corrugated connection part according to claim 1 , wherein a front part in the mounting direction of the deformation suppressing part is formed in a slip-off prevention shape that prevents the corrugated gate from slipping off. The arrangement opening is configured with a U-shaped opening that communicates with the mounting opening,
The corrugated connection portion according to claim 1 or 2 , wherein the deformation suppressing portions are arranged on both sides of the U-shaped opening. The rear portions in the mounting direction of the deformation suppressing portions disposed on both sides of the U-shaped opening are formed in a V-shape that gradually expands in the mounting direction when viewed from a direction facing the wall portion. The corrugated joint according to claim 3 . The corrugated connecting portion according to claim 3 or 4 , wherein the deformation suppressing portion extends from the mounting port side to the bottom wall portion facing the mounting port with respect to the central axis of the corrugated corrugate mounted thereon. The corrugated connection portion according to any one of claims 3 to 5 , wherein the deformation suppressing portion is formed along both edges of a linear portion of the U-shaped opening. The corrugated connection part according to claim 6 , wherein an inner end surface of the deformation suppressing part on the side of the U-shaped opening has a planar shape along a mounting direction and a direction facing the wall part. The distance between the rib closest to the wall and the deformation suppressing portion protruding from the wall is 0.5 times or more and 1.5 times the axial length of the recesses and protrusions in the corrugate. A corrugated connection portion according to any one of claims 1 to 7 set as follows. An exterior component comprising the corrugated connection portion according to any one of claims 1 to 8 . an exterior part provided with a corrugated connection part that connects the ends of the corrugated;
A corrugate connection structure comprising the corrugate through which a linear body is inserted,
At the corrugated connection part,
a fitting part that fits the end of the corrugate;
The fitting part is provided with a lid part that closes a mounting opening for mounting the corrugate,
In the fitting part,
a rib that fits into the recess of the corrugate;
It has an arrangement opening through which the linear body is inserted, and a wall facing the distal end surface of the attached corrugate,
At the peripheral edge of the arrangement opening in the wall,
A deformation suppressing part is provided that protrudes toward the inside of the mounted corrugate, and the deformation suppressing part enters the inside from the tip of the corrugate,
The corrugate was installed in such a way that the axially extending slit formed in a part of the circumferential direction of the cross section was on the rear side in the installation direction.
Corrugated connection structure.

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