JP2007159258A - Length adjusting structure for harness protective tube, and power supply device therewith - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To route a wiring harness at a specified length even when the lengths of protective tubes varies. <P>SOLUTION: Fixing members 6, 9 having a gap 11 for adjusting length of the tube are attached at an edge part of the protective tube 1 to regulate an overall length L of a protective tube assembly body 13 including the fixing members. The plurality of protective tubes 1, 1', 25 are mutually connected by fixing members 28, 22 having gaps 29, 34 for adjusting a length of the tube to regulate an overall length of the protective tube assembly body 27 including the protective tube. This is a power supply device 31 having the length adjusting structure for the harness protective tube, and the protective tube assembly bodies 13, 27 including the protective tube and the fixing members are routed from a slide structural body to a fixing structural body. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a harness protective tube length adjusting structure that absorbs variations in the cutting length of a harness protective tube such as a flexible corrugated tube, and a power supply apparatus including the same.

  5 to 6 show an embodiment of a conventional harness protection tube wiring structure and an embodiment of a power supply apparatus including the wiring structure (see, for example, Patent Document 1). FIG. 5 shows a state when the sliding door of the automobile is closed, and FIG. 6 shows a half-opened state of the sliding door.

  The power supply device 50 is disposed on the slide door 41 and includes a protector 42 made of synthetic resin for flexibly accommodating the wire harness 43, and a metal leaf spring 44 for urging the wire harness 43 upward in the protector. It is equipped with.

  The protector 42 is composed of a protector base (substitute with reference numeral 42) and a protector cover (not shown). The protector base and the protector cover each have a vertical base wall 51 and an outer peripheral peripheral wall 52 that are opposed to each other. Is locked to the protector base by locking means, and the protector base is fixed to the panel of the slide door 41 with bolts 56 and locking clips.

  The lower end portion of the leaf spring 44 is fixed together with the wire harness 43 by the harness fixing member 55 on the lower front end side of the protector 42, and the distal end side of the leaf spring 44 supports the wire harness 43 so as to be slidable. A synthetic resin cap 49 is attached to the tip of the leaf spring 44, and the wire harness 43 is stably supported by the cap 49.

  The wire harness 43 is configured by covering a plurality of electric wires 43a with a corrugated tube 40 made of synthetic resin, and the front end lower portion of the corrugated tube 40 is fixed by a fixing member 55 in the protector 42 as shown in an enlarged view in a circle. Has been. The corrugated tube 40 alternately has circumferential grooves 40a and ridges 40b to exhibit good flexibility, and ribs 55a on the inner surface of the fixing member 55 are engaged with the grooves 40a to corrugate. The tube 40 is positioned and fixed.

  One electric wire portion 43a of the wire harness 43 is led out from the front portion of the protector 42 and connected to an auxiliary machine on the slide door side. The other corrugated tube portion 40 of the wire harness 43 is swingably disposed from the elongated lower opening 45 of the protector 42 to the harness fixture 53 on the step (scuff plate) 48 side of the vehicle body 47 through the transition space when the door is opened. The other electric wire portion 43b passes through the corrugated tube 40, is led out from the harness fixture 53 to the vehicle body side, and is connected to a power source side wire harness (not shown) by a connector. The protector 42 is covered and hidden by a synthetic resin door trim (not shown), and the wire harness 43 is led out to the vehicle body side from the opening at the lower end of the door trim.

  The harness fixture 53 includes an inner member 53a that holds the corrugated tube 40 and an outer member 53b that rotatably holds the inner member 53a, and twists when the wire harness 43 swings as the slide door 41 opens and closes. To absorb. The inner member 53a has a rib (55a) that engages with the concave groove 40a of the corrugated tube 40 in the same manner as the fixing member 55 in the protector.

  The wire harness 43 is pulled rearward when the slide door 41 of FIG. 5 is fully closed, the wire harness 43 is pulled forward when the slide door 41 of FIG. 6 is opened, and the wire harness 43 is particularly pulled when the slide door 41 is half open. Although it tends to loosen downward, it is biased upward by the leaf spring 44 to absorb the slack (remaining length) and prevent pinching due to drooping.

  FIG. 7 shows an embodiment of a conventional wiring structure for a harness protection tube and an embodiment of a power supply device including the wiring structure (see Patent Document 2).

  The power feeding device 57 is arranged by bending and routing the wire harness 59 in a loop shape in a protector 58 made of synthetic resin, and expanding and contracting the loop portion 60 of the wire harness 59 as the slide door is opened and closed. Absorb. The leaf spring 44 as in the previous example is not used.

  The wire harness 59 is covered with a flexible reticulated tube 61 in the protector 58 and can be bent freely. The wire harness 59 is covered with a synthetic resin corrugated tube 40 from the protector 58 to the harness fixture 53 on the vehicle body side, and is not interfered with the outside. It is protected from rainwater.

The mesh tube 61 and the corrugated tube 40 are connected to each other by a connecting member 62. The harness fixture 53 is the same as the previous example. The harness portion covered with the mesh tube 61 in the protector 58 is supported in a loop shape by the upper and lower rollers 63 and led out to the slide door through the hole 65 of the vertical base wall 64 of the protector 58.
JP 2001-354085 A (FIGS. 7 to 8) Japanese Patent Laying-Open No. 2005-20895 (FIGS. 1 to 3)

  However, in the conventional harness protection tube routing structure and the power supply apparatus including the same, both ends of the corrugated tube 40 are connected to the harness fixing member 55 in the protector 42 and the vehicle body side in the form of FIG. Although it is fixed with the harness fixing tool 53, when the cutting length of the corrugated tube 40 varies due to the heat shrinkage of the corrugated tube 40, the cutting equipment capability, etc., the length of the wire harness 43 for power supply is prescribed. There is a concern that the wire harness 43 may become excessively short or long, and the wire harness 43 may be excessively pulled or loosened.

  The same applies to the configuration of FIG. 7, and when the cutting length of the corrugated tube 40 following the mesh tube 61 in the protector 58 varies, the harness fixture on the vehicle body side from the end of the mesh tube 61. There is a concern that the length of the wire harness 59 may vary from 53 to 53 and cause the same problem as described above.

  For example, in the power supply device 50 shown in FIG. 5, the above-described concern is that a corrugated tube having an oblong cross section (flat shape) is used in the range (first half) from the harness fixing member 55 in the protector 42 to the middle portion in the longitudinal direction of the corrugated tube 40. A corrugated tube having a circular cross section is used in the range from the longitudinal intermediate portion to the harness fixture 53 on the vehicle body side through the connecting member similar to the reference numeral 62 in the example of FIG. The corrugated tube 40 to be used has a different diameter (the front and rear corrugated tubes are connected by the connecting member 62), the corrugated tube 40 is used in the first half, and the other protective tube such as the net-like tube 61 in the second half through the connecting member 62. This can occur in the same way even when using. In addition, the above-mentioned concern can occur not only in the corrugated tube 40 but also in other protective tubes such as a resin tube or a mesh tube without unevenness.

  In view of the above-described points, the present invention includes a harness protective tube length adjusting structure capable of routing and using a wire harness to a specified length even when the length of the protective tube varies. An object is to provide a power feeding device.

  In order to achieve the above-mentioned object, a length adjustment structure for a harness protection tube according to claim 1 of the present invention is such that a fixing member having a tube length adjustment space is attached to an end of the protection tube, The total length of the protective tube assembly including the above is defined.

  With the above configuration, when the protective tube cutting length is shorter than the specified length, the space for adjusting the tube length of the fixing member remains long, and when the protective tube cutting length is longer than the specified length, the fixing member tube length The adjustment space remains short. Thus, the variation in the length of the protective tube is absorbed in the length adjusting space. The protective tube and the fixing member constitute a protective tube assembly (exterior member), and the distance (length) from one end of the protective tube to the other end of the fixing member is always kept constant for each product. Another fixing member having no length adjustment space may be attached to one end of the protective tube. The fixing member and the protective tube are fixed to each other by means such as engagement, welding or adhesion between the rib and the groove. A plurality of electric wires are inserted inside the protective tube and the fixing member to form a wire harness.

  In the length adjustment structure of the harness protection tube according to claim 2, a plurality of protection tubes are connected to each other by a fixing member having a space for adjusting the tube length, and the total length of the protection tube assembly including the protection tube is increased. It is characterized by the provision.

  When the cut length of one and / or the other protective tube is shorter than the prescribed length due to the above configuration, the space for adjusting the tube length of the fixing member remains long, and the cut length of the one and / or the other protective tube remains. When the length is longer than specified, the space for adjusting the tube length of the fixing member remains short. Thus, the variation in the length of each protective tube is absorbed in the length adjusting space. The fixing member acts as a connecting member that connects both protective tubes. Each protective tube and fixing member constitute a protective tube assembly (exterior member), and the distance (length) from one end of one protective tube to the other end of the other protective tube is always kept constant for each product. The Another fixing member without a length adjusting space may be attached to one end of one protective tube or the other end of the other protective tube. The fixing member and each protective tube are fixed to each other by means such as engagement, welding or adhesion between the rib and the groove. A plurality of electric wires are inserted inside each protective tube and the fixing member to form a wire harness. The number of protection tubes is not limited to two, and may be set to be more than that, and the protection tubes may be connected to each other with a fixing member to be extended for a long time.

  The length adjustment structure of the harness protection tube according to claim 3 is the length adjustment structure of the harness protection tube according to claim 1 or 2, wherein the protection tube is a corrugated tube, and the fixing member is the corrugated tube. It has the protrusion part engaged with a ditch | groove, It is characterized by the above-mentioned.

  With the above configuration, the fixing member is fixed to the corrugated tube by engaging the protrusion of the fixing member with the circumferential groove in the corrugated tube. The concave grooves are formed at an equal pitch, and one concave groove at the same position is engaged with, for example, one protrusion according to the cutting length of the corrugated tube. Although the corrugated tube is easily bent in the radial direction, it is difficult to expand and contract in the longitudinal direction, and therefore the position of the single groove does not vary depending on the tube length.

  A power supply device according to a fourth aspect is a power supply device including the harness protective tube length adjusting structure according to any one of the first to third aspects, wherein the protective tube includes the protective tube and the fixing member. The assembly is routed from the slide structure to the fixed structure.

  With the above configuration, power is supplied from a fixed structure such as a vehicle body to a slide structure such as a slide door by an electric wire inserted through the inside of the protective tube assembly. A wire harness is comprised by an electric wire and a protection tube assembly. For example, the fixing member of the terminal is fixed to the slide structure or fixed to the fixed structure. Further, the intermediate fixing member connects, for example, two types or two protective tubes of the wire harness to each other in the slide structure.

  According to the first aspect of the present invention, even when there is a variation in the length of the protective tube, the fixing member can absorb the variation in the length, and an exterior member having a specified length can be obtained. Thereby, for example, the constant power supply from the vehicle body (power supply side) of the automobile to the slide door or the like can be surely performed without unnecessary slack or tension with a wire harness having an appropriate length.

  According to the second aspect of the present invention, even when there is a variation in the length of each protection tube, the variation in the length can be absorbed by the intermediate fixing member, and an exterior member having a specified length can be obtained. Thereby, for example, the constant power supply from the vehicle body (power supply side) of the automobile to the slide door or the like can be surely performed without unnecessary slack or tension with a wire harness having an appropriate length.

  According to invention of Claim 3, a fixing member can be easily mounted | worn with sufficient workability | operativity to the corrugated tube made from a synthetic resin. In addition, the corrugated tube having a relatively high rigidity can safely protect the inner electric wire from interference with the outside, rainwater, dust, and the like.

  According to the fourth aspect of the present invention, the length of the wire harness in the power supply device is always accurately maintained without variation, and unnecessary slack or tension of the wire harness is prevented, thereby improving the reliability of constant power supply.

  FIG. 1 shows an embodiment of a length adjustment structure of a harness protection tube according to the present invention.

  An existing synthetic resin corrugated tube 1 is used as the harness protection tube. The corrugated tube (harness protection tube) 1 has a good bending property in which circumferential grooves 2 and ridges 3 are alternately arranged at equal pitches in the longitudinal direction of the tube. No. 5 is cut in the radial direction by a cutting machine (not shown), and a part of the protrusion 3 remains. The concave grooves 2 and the ridges 3 have substantially constant plate thickness, and the inner peripheral side has the same shape as the outer peripheral side.

  An annular first fixing member 6 made of synthetic resin is mounted on the outer peripheral side of one end portion (right end portion in FIG. 1) of the corrugated tube 1, and one end (one end surface) 4 of the corrugated tube 1 is the first fixing member 6. The rib (projection) 8 on the inner peripheral side of the first fixing member 6 is inserted into each concave groove 2 on the outer periphery of one end of the corrugated tube 1 in a state where it is in contact with the vertical reference surface 7 on the front end (tip) side. Are engaged.

  An annular second fixing member 9 made of synthetic resin is attached to the outer peripheral side of the other end portion (left end portion in FIG. 1) of the corrugated tube 1, and the other end (other end surface) 5 of the corrugated tube 1 is the second end. A rib (projection) 10 on the inner peripheral side of the first half of the second fixing member 9 is located in the middle portion in the longitudinal direction of the fixing member 9 in a free state and in each concave groove 2 on the outer periphery of the other end of the corrugated tube 1. In the second half of the second fixing member 9, a length adjusting space 11 is formed straight with the same inner diameter as the first half space.

Range L ₁ to the second rear end 12a of the first half side rib 10 ₁ of the rear end of an annular fixing member main body 12 of the fixing member acts as a variation absorbing space (variation absorbing portion). The distance L ₂ from the rear end of the first fixing member 6 to the front end of the second fixing member 9 is always kept constant by the length defining method shown in FIG.

  The front and rear fixing members 6 and 9 are used as a product (protective tube assembly or exterior member) 13 together with the corrugated tube 1 and constitute a part of the wire harness (a plurality of electric wires in the protective tube assembly 13). For example, the length from the front end of the first fixing member 6 to the rear end of the second fixing member 9, that is, the total length of the protective tube assembly 13 is the main length of the wire harness. Is defined as

The length of the main part of the wire harness is defined by the length from the front end 4 of the corrugated tube 1 to the rear end 12a of the second fixing member 9, or from the rear end of the first fixing member 6 to the second fixing member 9. It can also be defined by the distance L ₂ etc. to the front end. Note that “front and rear” in the specification is for convenience of explanation and does not necessarily coincide with the wiring direction of the wire harness.

  Each of the fixing members 6 and 9 is formed so as to be capable of being divided, and one of the divided fixing members and the other of the divided fixing members includes a locking means such as a locking frame piece and an engaging projection, a locking claw and an engaging recess, etc. (Not shown) and locked in an annular form. Both split fixing members may be freely opened and closed with thin hinges (not shown). In a state where the fixing members 6 and 9 are divided, the corrugated tube 1 is set in the harness insertion holes (grooves) 14 and 15 inside the fixing members 6 and 9, and both the divided fixing members are closed simultaneously. The ribs 8 and 10 on the inner peripheral side of the divided fixing member are engaged with the concave grooves 2 at the front and rear ends of the corrugated tube 1. At this time, the position of the other end portion of the corrugated tube 1 relative to the second fixing member 9 (substitute with reference numeral 5) is adjusted back and forth according to variations in the cutting length of the corrugated tube 1 (or varies) (or The position of the second fixing member 9 is adjusted back and forth with respect to the other end portion 5 of the corrugated tube 1).

  The ribs 8 and 10 may be formed annularly on the inner periphery of the fixing members 6 and 9, or may be partially formed in an arc shape. In place of the ribs 8 and 10, a plurality of protrusions (not shown) may be provided in parallel in the circumferential direction. The protrusions for fixing the corrugated tube such as the ribs 8 and 10 and the protrusions are preferably formed on the annular fixing member main bodies 12 and 16 by integral resin molding.

  The reference surface 7 on the front end side of the first fixing member 6 is formed as a vertical inner surface (when the fixing member 6 is horizontally disposed) of the inward annular flange 17 or a plurality of inward projections. It is preferable to form a stepped shape such as a vertical inner surface (not shown). A harness insertion hole 14 is formed on the inner peripheral side of the protrusions such as the flanges 17 and the protrusions, and a plurality of insulation-coated wires (not shown) led out from one end side 4 of the corrugated tube 1 are inserted into the harness. It is led out through the hole 14. The fixing members 6 and 9 are mounted in a state where the electric wire is inserted into the corrugated tube 1.

  The number and position of the ribs 8 of the first fixing member 6 are appropriately set. In short, the front end portion of the corrugated tube 1 may be fixed by the rib 8 so that the front end portion of the corrugated tube 1 is abutted against the reference surface 7 on the front end side of the first fixing member 6. When the corrugated tube 1 has a circular cross section, the corrugated tube 1 is held so as to be rotatable in the circumferential direction on the inner side of the first fixing member 6. When the corrugated tube 1 has an oblong cross section (flat shape), the corrugated tube 1 is fixed in the axial direction and the circumferential direction in a stationary manner. The same applies to the second fixing member 9.

  It is preferable that a rib 10 is formed at least on the front end of the second fixing member 9. The number of ribs 10 is set as appropriate. The ribs 10 are not provided in the second half of the second fixing member 9 of this example, but it is also possible to provide a plurality of ribs 10 at an equal pitch in the range from the front end 12b to the rear end 12a. Further, as shown by a chain line, a rib 10 'is also provided on the rear end side of the second fixing member 9, and a protective tube (not shown) such as another corrugated tube is fixed by the rib 10' on the rear end side. It is also possible to make it. It is preferable that the second fixing member 9 penetrates in a cylindrical shape.

  In the example of FIG. 1, the latter half space 11 functions as a length adjustment space of the corrugated tube 1, that is, a cutting length adjusting portion of the corrugated tube 1. When the corrugated tube 1 has an oval cross section, the second fixing member 9 and the first fixing member 6 can be formed into an annular shape having an oval cross section. From the inner space (harness insertion space) of the corrugated tube 1 through the harness insertion hole (substitute with reference numeral 11) inside the second fixing member 9, the electric wire is led out from the opening of the rear end 12a.

  FIG. 2 shows an assembly tool for making the entire length L of the protective tube assembly 13 composed of the corrugated tube 1 and the fixing members 6 and 9 on both front and rear sides, and a length adjustment (regulation) method using the assembly tool. The form is shown.

The assembly tool is composed of a pair of receivers 20 and 20 ′ including a pair of front and rear columns 18 and receiving portions 19 and 19 ′ fixed to the upper ends of the columns 18. Each of the receiving portions 19 and 19 ′ has recesses 21 and 21 ′ that are slightly wider than the lengths of the fixing members 6 and 9, and supports the fixing members 6 and 9 with almost no back and forth backlash. The pair of support pillars 18 and 18 are arranged and fixed on a work table or the like at a fixed distance L ₃ . Each of the receiving portions 19 and 19 ′ preferably has a width that supports the fixing members 6 and 9 with a margin in the left-right direction (tube radial direction).

  As a method for defining the length of the protective tube assembly 13, both the fixing members 6, 9 are set in the respective receivers 19, 19 ′ in an open state (divided state). As shown in FIG. 1, the first fixing member 6 is closed and engaged with and fixed to the rib 8 (FIG. 1) in a state where one end portion (front end portion) is inserted into the back as shown in FIG. In a state where 1 is straightened without slack, the other end portion (rear end portion) of the corrugated tube 1 is put into the second fixing member 9 and the second fixing member 9 is closed to engage with the rib 10 (FIG. 1). Fix it.

Even if the length L ₄ of the corrugated tube 1 is shorter or longer than prescribed, the variation in the tube length is absorbed in the empty space 11 in the second half (front end side) of the second fixing member 9. The total length of the tube assembly 13 is always kept constant. The full length of the corrugated tube 1 is set so that the position of the other end (rear end) 5 of the corrugated tube 1 is always located in the middle portion in the longitudinal direction of the second fixing member 9.

  As an application example of the protective tube assembly 13 of FIG. 1, for example, the first fixing member 6 is used as the harness fixing member 55 in the protector 42 in the conventional power feeding device 50 of FIG. The second fixing member 9 can be used as 53.

  In this case, the first fixing member 6 is fixed to the protector 42 with a screw member or the like, the second fixing member 9 is used as the inner member 53a of the harness fixture 53, and the second fixing member 9 is used with the outer member 53b. It is held so that it can rotate in the circumferential direction. On the contrary, the first fixing member 6 can be used as the harness fixing member 53 and the second fixing member 9 can be used as the harness fixing member 55 in the protector 42.

  As another application example, for example, the second fixing member 9 is used as a connecting member 62 between the mesh tube 61 and the corrugated tube 40 in the protector (which may be exposed to the outside) in the conventional power feeding device 57 in FIG. It is also possible to use the first fixing member 6 as the body side harness fixture 53.

  In this case, the end of the reticulated tube 61 (FIG. 7) is fixed to the vacant space 11 for adjusting the tube length of the second fixing member 9, and the first fixing member 6 is rotatable in the circumferential direction as in the previous example. Used as the inner member 53a (FIG. 5). As a method for fixing the mesh tube 61 and the second fixing member 9, for example, welding or a sharp protrusion (not shown) provided on the inner or outer peripheral surface of the second fixing member 9 is used. It is possible to stab and bend and fix in a hook shape, or to weld or bond the mesh tube 61 to the inner peripheral surface or the outer peripheral surface of the second fixing member 9 made of synthetic resin.

  As another application example, as shown in FIG. 4 (in FIG. 4, the intermediate connecting member 22 is used, but in the present application example, the intermediate connecting member 22 is not used), the base wall 24 of the protector 23 is provided. The first fixing member 6 is fixed by means such as a screw, and the second fixing member 9 is used as a connecting member for connecting the corrugated tube 1 ′ in the protector 23 (which may be exposed to the outside) and the other protective tube 25. Can be used. The other protective tube 25 may be a mesh tube, another resin tube, or a corrugated tube having a different cross-sectional shape or outer diameter. The protector 23 is fixed to a slide door (slide structure), and the wire harness 26 is routed from the protector 23 to the vehicle body (fixed structure) side through a crossing space.

  5, the first fixing member 6 is used as the harness fixing member 55 in the protector 42, and the corrugated tube 40 and other protective tubes or corrugated tubes having different cross-sectional shapes and diameters in the protector 42 are used. It is also possible to use the second fixing member 9 as a connecting member for connecting the two.

  As an example of the protective tube assembly using the intermediate connecting member 22 of FIG. 4, the one shown in FIG. 3 can be applied. The protective tube assembly 27 of FIG. 3 absorbs the variation in the cutting length of each corrugated tube 1, 1 ′ with the intermediate fixing member 28 while connecting the two corrugated tubes 1, 1 ′ with the intermediate fixing member 28. Thus, the same full length L ′ is always obtained.

  A front end portion of one (first half) corrugated tube 1 and a rear end portion of the other (second half) corrugated tube 1 ′ have the same shape as the first fixing member 6 of the embodiment of FIG. 6 ′) is used, and the front end 4 of one corrugated tube 1 is engaged to the back of the first fixing member 6 in FIG. 3 and is in contact with the vertical reference surface 7 on the front end side, while the corrugated tube 1 The groove 2 at the front end is engaged and fixed by the rib (projection) 8 on the inner peripheral side of the first fixing member 6, and the rear end 5 'of the other corrugated tube 1' is the second fixing member in FIG. 6 'is engaged to the back and is in contact with the vertical reference surface 7' on the rear end side, while the concave groove 2 on the rear end portion of the corrugated tube 1 'is formed on the inner peripheral side of the second fixing member 6'. The ribs (protrusions) 10 'are engaged and fixed.

The third fixing member (connecting member) 28 of the intermediate has a first half and the annular or arcuate ribs (protrusions) of the second half and each plural rows 8,10 ', front late rib ₈₁ of the first half trailing A space 29 for absorbing variation in the cutting length of each corrugated tube 1, 1 ′ is formed between the rib 10 ₁ ′, that is, in the center of the third fixing member 28. Each fixing member 6, 6 ′, 28 is made of synthetic resin, and each rib 8, 10 ′ is formed integrally with an annular (cylindrical) fixing member body 16, 16 ′, 30. The corrugated tube 1, 1 ′ and the fixing members 6, 6 ′, 28 constitute a protective tube assembly 27.

  The protective tube assembly 27 shown in FIG. 3 has a third receiving member (not shown) disposed between the pair of front and rear receiving members 20 and 20 ′ in the length adjustment (defining) method shown in FIG. The intermediate fixing member 28 is supported by the three receivers. First, one end of each corrugated tube 1, 1 'is inserted into the front and rear fixing members 6, 6' to the back and set against the reference surfaces 7, 7 '. Then, in a state where each corrugated tube 1, 1 ′ is straightened, the concave groove 2 at the other end of each corrugated tube 1, 1 ′ is made into each rib 8 between the front half portion and the rear half portion of the third fixing member 28. , 10 ′.

  In the embodiment of FIG. 3, the second fixing member 6 ′ is replaced with a second third fixing member 28 (the fixing member 28 in FIG. 3 is the first one), The rear end portion of the other corrugated tube 1 ′ is fixed to one end portion of the third fixing member, and the front end portion of the third corrugated tube (not shown) is fixed to the other end portion of the second third fixing member. It is also possible to fix and extend the entire length of the protective tube assembly (exterior member). In other words, the number of protective tubes used is not limited to two.

  In the power feeding device 31 of FIG. 4, an intermediate fixing member 22 that is bent in a substantially U shape is used, and the tip of a metal leaf spring 32 is fixed to the intermediate fixing member 22, so that the leaf spring 32 is fixed. The proximal end portion is fixed to the first fixing member 6 in the protector, the intermediate fixing member 22 is used as a spring cap, and the intermediate fixing member 22 is fixed by a leaf spring 32 in the direction opposite to the slack of the wire harness 26 (upward). To absorb the harness surplus length. The intermediate fixing member 22 has a space 34 for length adjustment in the front-rear direction (longitudinal direction) on the inner side.

  The intermediate fixing member 22 may be curved in an arc shape instead of a dogleg along the bent shape of the wire harness 26. In the length adjustment method of FIG. 2, the fixing member 22 bent in the shape of a circle or an arc is preferably disposed horizontally on an intermediate receptacle (not shown) to define the total length of the protective tube assembly. . Of course, it is also possible to use the intermediate fixing member 28 in the straight shape as shown in FIG.

  4 is applied to the conventional power feeding device 50 of FIG. 5, the first fixing member 6 is used as the harness fixing member 55 in the protector 42, and the intermediate fixing member 22 is used at the spring cap 49 portion. Then, the wire harness 43 is spring-biased via the intermediate fixing member 22, and the corrugated tube 40 and the other protective tube 25 (FIG. 4) are connected by the second fixing member 9 (FIG. 4) in the protector 42. It is also possible to make it.

  In each of the above embodiments, the first fixing member 6 (FIG. 1) and the first and second fixing members 6, 6 ′ (FIG. 3) are assembled to the power feeding apparatus using products. After finishing the length adjustment in 2, the first fixing member 6 (FIG. 1) and the first and second fixing members 6, 6 ′ (FIG. 3) are removed from the corrugated tubes 1, 1 ′ It is also possible to configure the protective tube assembly using only the second fixing member 9 for adjustment (FIG. 1) and the intermediate third fixing members 30 and 22 (FIGS. 3 and 4) as products.

  In this case, for example, in the embodiment of FIG. 4, the first fixing member 6 is preliminarily resin-molded as an integral part of the protector 23, and one end of the corrugated tube 1 is assembled to the protector-integrated fixing member 6. Fix it. The second fixing member 9 (FIG. 1) is used as a fixing member for connecting the intermediate fixing member 22 or the protective tubes 1 and 25 in the protector 23 of FIG. In the conventional configuration of FIG. 5, one end of the corrugated tube 1 is engaged and fixed to a harness fixing member 55 integrated with the protector 42 without using the first fixing member 6. In this case, in the length adjustment method of FIG. 2, the first fixing member 6 or a member having the same action may be integrally fixed to the cradle 20 in advance.

  Moreover, in each said embodiment, although the dispersion | variation in the cutting length of the corrugated tube 1 and 1 'was absorbed as a protective tube, it replaced with a corrugated tube and the product made from other synthetic resin or synthetic rubber with an uneven | corrugated outer peripheral surface It is also possible to absorb the variation in the cutting length of the protective tube by each fixing member.

  For example, when using a net-like tube 25, a thin and relatively hard resin tube, or a thick and soft resin or rubber tube, the ribs 8, 10, A sharp protrusion (not shown) is provided instead of 10 ', and these protective tubes are pierced and penetrated with the sharp protrusion, and the protective tube is fixed by bending or crushing the protrusion by thermocompression bonding. It is possible to fix to the fixing members 6, 6 ′ 22, 28 by welding or adhesion. In this case as well, the length adjustment (regulation) method of FIG. 2 can be employed.

  Moreover, although the protector 23 of the power feeding device of each of the above embodiments is arranged on a slide door of an automobile, the protector 23 is applied to a slide door of a vehicle such as a train, a processing machine, or an inspection device instead of the slide door of an automobile. It is also possible. These sliding doors are collectively referred to as a slide structure, and the vehicle body, processing machine main body, inspection apparatus main body, and the like are collectively referred to as a fixed structure. It is also possible to arrange the protector 22 horizontally on the fixed structure instead of the slide structure, and to arrange the harness fixture (fixing member) 53 on the slide structure side.

  Further, although the protector 23 is used in the power feeding device 31 (FIG. 4) of each of the above embodiments, it is also possible to eliminate the protector 23 and route only the wire harness 26 from the slide structure to the fixed structure. . The wire harness 26 includes at least protective tubes 1 and 25, fixing members 6, 9 and 22, and an insulation-coated electric wire 33 inserted into the protective tube.

It is a front view which shows one Embodiment of the length adjustment structure of the harness protection tube which concerns on this invention. It is a front view which similarly shows one form of the length adjustment method of a harness protection tube. It is a front view which shows other embodiment of the length adjustment structure of the harness protection tube which concerns on this invention. It is a front view which shows one Embodiment of the electric power feeder provided with the length adjustment structure of the harness protection tube which concerns on this invention. It is a perspective view which shows one form of the wiring structure of the conventional harness protection tube, and an electric power feeder provided with it (the inside is a front view which shows the principal part). It is a perspective view which similarly shows the state at the time of the sliding door opening of an electric power feeder. It is a front view which shows the other structure of the conventional wiring structure of a harness protection tube, and an electric power feeder provided with the same.

Explanation of symbols

1,1 'corrugated tube (protection tube)
2 Groove 6, 6 ', 9 Fixing member 8, 10, 10' Rib (projection)
11, 29, 34 Space 13, 27 Protection tube assembly 22, 28 Intermediate fixing member 25 Net tube (protection tube)
31 Feeder L, L 'Total length

Claims (4)

  A harness protective tube length adjusting structure characterized in that a fixing member having a tube length adjusting space is attached to an end portion of a protective tube, and the total length of the protective tube assembly including the fixing member is defined.   Length adjustment structure of harness protection tube characterized in that a plurality of protection tubes are connected to each other by a fixing member having a space for adjusting the tube length, and the total length of the protection tube assembly including the protection tube is defined .   The length adjustment structure of the harness protection tube according to claim 1, wherein the protection tube is a corrugated tube, and the fixing member has a protrusion that engages with a concave groove of the corrugated tube.   It is an electric power feeder provided with the length adjustment structure of the harness protection tube in any one of Claims 1-3, Comprising: The said protection tube assembly including the said protection tube and the said fixing member is a fixed structure from a slide structure. A power feeding device characterized by being wired in the body.

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