JP5150355B2 - Power supply device for sliding door - Google Patents

Description

  The present invention relates to a power supply device for a sliding door that supports and guides a wire harness in a protector with a cap at the tip of a spring for absorbing excess length.

  6A and 6B show an embodiment of a conventional sliding door power supply device (see Patent Document 1).

  This power supply device for a slide door has a protector 72 made of synthetic resin disposed on a slide door 71 of an automobile, a leaf spring 73 disposed in the protector 72, and a cap made of synthetic resin ( (Harness support member) 74 is inserted and fixed, and the wire harness 75 is supported and biased upward by the cap 74, and one side of the wire harness 75 is routed to the slide door 71 side, and the other side of the wire harness 75 is The wiring harness 78 is routed from the lower opening 76 to the harness fixture 78 on the vehicle body 77 side, and the sag of the wire harness 75 when the sliding door 71 is half-opened is prevented by the biasing force of the leaf spring 73. The protector 72 includes a protector base (substitute with reference numeral 72) and a protector cover 72a.

  6A shows a state in which the slide door 71 is close to being fully closed, and FIG. 6B shows a state in which the slide door 71 is about to be fully opened. When the sliding door 71 is fully closed, the sliding door 71 is in close contact with the vehicle body 77 side, the wire harness 75 is pulled backward with the harness fixture 78 as a fulcrum, and when the slide door 71 is fully opened, the wire harness 75 pulls the harness fixture 78. Pulled forward by the fulcrum.

  FIGS. 7A and 7B show another embodiment of a conventional sliding door power supply device (see also Patent Document 1).

  As shown in FIG. 7A, this sliding door power supply device is formed with a protector 81 that is longer than that in the configuration of FIG. 6 and a cap (harness guide member) 83 at the tip of a leaf spring (elastic member) 82. It is formed in a banana shape so as to cope with an increase in the sliding amount of the sliding door, and the wire harness 84 is guided by the cap 83 and led out from the front end of the protector 81 when the sliding door is fully opened.

  The protector 81 includes a protector base (substitute with reference numeral 81) and a protector cover 81a. The lower end of the protector cover 81 a (portion indicated by reference numeral 81 a) is shorter than the protector base 81 and positioned on the upper side.

  As shown in FIG. 7B, the cap 83 is made of a synthetic resin material and has a substantially L-shaped longitudinal section, and the vertical side wall 83a of the cap 83 is located along the inner surface of the protector cover 81a. The wire harness 84 includes a plurality of electric wires and a synthetic resin bellows-like corrugated tube that covers the wires.

  As shown in FIG. 7C, when the slide door 85 is fully closed (as shown on the right side of FIG. 7C), the cap 83 is raised while the wire harness 84 extends to a large diameter in the protector 81. When the wire harness 84 is fully opened (as shown on the left side of FIG. 7C), the cap 83 is lowered while the diameter of the wire harness 84 is reduced in the protector 81 as shown in FIG. 7A, and the tip 83a of the cap 83 is moved to the protector 81. The vehicle body is located at the front end 86a of the horizontally long lower opening 86, and the wire harness 84 is separated from the vehicle body 88 with a large bending radius from the cap 83 to the harness fixture 87 on the vehicle body side (the separation distance is indicated by S). 88 without interference.

When the cap 83 is not used, the wire harness 84 is linearly led out from the middle of the lower opening 86 of the protector 81 as shown by a chain line in FIG. There are concerns about interference.
JP 2004-136735 A (FIGS. 2, 5 to 7)

  However, in the conventional sliding door power supply device of FIG. 7, when the rigidity of the wire harness 84 increases as the number of wires of the wire harness 84 increases or the corrugated tube around the wire harness increases, When the sliding door is fully opened, there is a concern that the rigidity of the cap 83 is defeated by the rigidity of the wire harness 84, the cap 83 is bent and deformed on the vehicle body side, and the function as the harness guide is reduced.

  Further, when the wire harness 84 is formed short or when the protector 81 is disposed above the harness support 87, the cap 83 protrudes from the lower end of the protector cover 81a when the sliding door is fully opened. As indicated by the arrow in FIG. 7C, the wire harness 84 is likely to be detached from the cap 83, and there is a concern that the function as the harness guide is reduced. Since the cap 83 protrudes from the lower end of the protector cover 81a, the bending deformation of the cap 83 is also promoted.

  In view of the above, the present invention reliably exhibits the harness guide mechanism by the cap (harness guide member) provided at the tip of the elastic member for biasing the harness to prevent the interference between the wire harness and the vehicle body. It is an object of the present invention to provide a sliding door power supply device.

In order to achieve the above object, a power supply device for a sliding door according to claim 1 of the present invention includes a protector base on a sliding door side that has an elastic member for absorbing a surplus length provided with a harness guide member on a distal end side. A power supply device for a sliding door, which is provided in a protector comprising a protector cover , fixes the protector base to the slide door panel , supports the wire harness with the harness guide member, and leads out to the vehicle body side from the long opening of the protector. in, when the elastic member is reduced in diameter in a loop together with the wire harness, a projecting portion for abutting the side facing the protector thickness direction of the harness guide member to Oite the protector cover to said open side of said protector It is characterized by being extended.

  With the above configuration, for example, when the wire harness is pulled out from the protector to the vehicle body side when the sliding door is fully opened and the elastic member is reduced in a loop shape together with the wire harness, the harness guide on the distal end side of the elastic member is connected to the protrusion of the protector The member abuts on the opening side of the protector in the direction orthogonal to the direction in which the wire harness is pulled out, that is, toward the vehicle body, thereby preventing the harness guide member from jumping out from the opening of the protector in the orthogonal direction. The bending deformation of the harness guide member in the orthogonal direction is prevented, and the wire harness is guided while being guided in the specified direction along the harness guide member, so that the interference between the wire harness and the vehicle body is prevented. The

  According to a second aspect of the present invention, there is provided the sliding door power supply apparatus according to the first aspect, wherein a reinforcing rib is formed on the protruding portion.

  With the above configuration, the bending rigidity of the protruding portion of the protector is enhanced by the rib, and the operational effect of the invention of claim 1 is promoted.

Power supply device for a sliding door according to claim 3, provided in the protector comprising a resilient member for excess length absorbing having distally harness guide member in the protector base and the protector cover that face each other of the sliding door side, the In the power supply device for a slide door, in which an annular wall is provided on the protector base, the protector base is fixed to the slide door panel, and the wire harness is supported by the harness guide member and led out from the elongated opening of the protector to the vehicle body side. an inclined portion inclined toward the opening formed in the annular wall, when the elastic member is reduced in diameter in a loop together with the wire harness along the annular wall in the protector, the inclination of the annular wall convex portions for moving the harness guide member abuts on the opening side of the part, opposite to the inclined portion of the annular wall the harnesses Characterized in that provided on the guide member.

  With the above configuration, for example, when the wire harness is pulled out from the protector to the vehicle body side when the sliding door is fully opened and the elastic member is reduced in a loop shape together with the wire harness, the convex portion of the harness guide member on the distal end side of the elastic member However, the harness guide member is pressed against the opening side of the protector to move against the annular wall for restricting the bending of the harness in the protector, so that the harness guide member is prevented from coming off in the opening direction of the harness harness, and the harness guide The wire harness is reliably supported by the member, and the wire harness is guided while being guided in a specified direction along the harness guide member, whereby interference between the wire harness and the vehicle body is prevented.

  According to a fourth aspect of the present invention, there is provided the sliding door power supply device according to the third aspect, wherein a reinforcing rib is formed on the convex portion.

  By the said structure, the bending rigidity of the convex part of a harness guide member is improved with a rib, and the effect of the invention of Claim 3 is accelerated | stimulated.

The sliding door power feeding device according to claim 5 is the sliding door power feeding device according to claim 3 , wherein the harness guide is configured to reduce the diameter of the elastic member along the annular wall together with the wire harness in a loop shape. A protrusion that abuts a side surface of the member that faces the thickness direction of the protector extends from the protector cover on the opening side of the protector .

  With the above configuration, the effect of the invention of claim 1 and the effect of the invention of claim 3 are effectively exhibited, and the contact area of the harness guide member with respect to the protruding portion of the protector is increased by the convex portion. The stronger pressing force of the wire harness can be reliably received by the protruding portion and the harness guide member.

  According to the first aspect of the present invention, the harness guide member abuts against the protruding portion of the protector and leads the wire harness in a specified direction, so that, for example, interference between the wire harness and the vehicle body when the sliding door is fully opened is prevented. This eliminates concerns about abnormal noise and wear associated with interference, and improves the reliability of constant power supply to the sliding door.

  According to the second aspect of the present invention, the bending rigidity of the projecting portion of the protector is enhanced by the rib, so that the effect of the first aspect of the invention is more reliably exhibited.

  According to invention of Claim 3, the convex part of a harness guide member contact | abuts to the annular wall in a protector, a harness guide member is moved to the removal direction of a wire harness, and the wire harness from a harness guide member is made. Because the wire harness is led out in the specified direction with the harness guide member to prevent it from coming off, for example, interference between the wire harness and the vehicle body when the sliding door is fully opened is prevented, and there is concern about abnormal noise or wear due to interference. Is eliminated and the reliability of constant power supply to the sliding door is improved.

  According to the invention of claim 4, since the bending rigidity of the harness guide member is enhanced by the rib, the effect of the invention of claim 3 is more reliably exhibited.

  According to the invention described in claim 5, the synergistic effect of the invention described in claim 1 and the invention described in claim 3 is exhibited, and a large-area harness guide member including the convex portion is formed on the protruding portion of the protector. By abutting, the bending deformation of the harness guide member is more reliably prevented, the lead-out direction of the wire harness is more reliably defined, and the interference between the wire harness and the vehicle body is more reliably prevented and accompanying the interference. Anxiety such as abnormal noise and wear is surely resolved, and the reliability of constant power supply to the sliding door is further improved.

  1 to 5 show an embodiment of a power supply device for a sliding door according to the present invention.

  This sliding door power supply device 1 is mounted vertically on a sliding door (not shown), and a protector 2 made of synthetic resin for accommodating the wire harness 8 in a bent state, and a protector 2 disposed in the protector 2. 1. A protector base 3 and a protector that constitute the protector 2 in a plate spring (elastic member) 5 provided and a synthetic resin long cap (harness guide member) 6 provided at the tip of the leaf spring 5. The first feature is that a protruding plate portion (protruding portion) 7 that is in contact with the side surface of the cap 6 when the sliding door is fully opened is integrally extended to the lower end side of the protector cover 4 of the cover 4.

  Further, the second feature is that the shape of the cap 6 is improved so that the wire harness 8 does not come off the cap 6 at the spring tip even when the wire harness 8 is short and bent to a small diameter when the sliding door is fully opened. It has the characteristics of These feature points are effective even when used alone, and become more effective in synergism when used in combination.

  As shown in FIGS. 1 to 3, when the sliding door is fully opened, the wire harness 8 is pulled forward of the vehicle with the harness fixture 12 on the vehicle body 10 side as a fulcrum, and the leaf spring 5 together with the wire harness 8 is looped in the protector 2. The cap 6 is inverted downward from above, and the lower half 6a of the cap 6 protrudes from the lower opening 13 (long opening) of the protector 2.

  The side surface 14 of the cap 6 is received by the inner surface of the protruding plate portion 7 of the protector cover 4 to prevent deformation and movement of the cap 6 toward the vehicle body side, and the wire harness 8 is passed from the cap 6 through the front end 13a of the lower opening 13. The harness fixture 12 on the vehicle body side is routed with a large bending locus to prevent interference between the wheel arch portion 11 of the vehicle body 10 and the wire harness 8.

  In addition, at the same time, the side surface of the wire harness 8 is securely received by the wide side surface 14 of the cap 6 to prevent the wire harness 8 from coming off from the cap 6, and the convex portion that faces upward when the sliding door is fully opened. 15 is provided integrally with the cap 6, and the convex portion 15 is brought into contact with the lower part 16 a of the annular wall 16 for restricting the bending of the harness in the protector 2, so that the cap 6 is forcibly pushed down to cap the wire harness 8. 6 is maintained (held) to prevent the wire harness 8 from coming off the cap 6.

  In FIG. 1, the direction of the protector 2 is shown in the reverse direction of the conventional example. In FIG. 1, the left is the front of the vehicle and the right is the rear of the vehicle. The sliding door is on the right side of the vehicle.

  The basic structure of the protector 2 is the same as that of the prior art. The protector base 3 is fixed to the slide door panel with a bracket 17, and the protector cover 4 is secured to the protector base 3 with locking means 18 such as locking claws and engaging frame pieces (FIG. 2). ), The protector base 3 and the protector cover 4 each have a perpendicularly opposing substrate portion 19 and a curved peripheral wall 20 orthogonal to the substrate portion 19, and the lower end 21 of the protector cover 4 is the protector base 3. The lower ends of the protector base 3 and the protector cover 4 are curved in a guide shape toward the vehicle body side, and a horizontally long lower opening 13 is formed between both lower ends. Located at the front end side of the protector 2 is a harness lead-out port (lead-out path) 22 to the slide door side, mainly inside the front of the protector base 3. Serial annular wall 16 is provided, proximal end of the plate spring 5 at the front end side of the annular wall 16 is fixed to the protector base 3.

1 and 2, and as indicated by a solid line in FIG. 3, the front portion of the protector cover 4 , that is, the portion where the cap 6 projects downward from the lower opening 13 of the protector 2, from the lower position of the annular wall 16. A downward projecting plate portion 7 is formed on the front end of the protector cover 4 . The second half of the projecting plate portion 7 continues to the lower end 21 of the protector cover 4 with an inclined portion 7a that is inclined upward. The inclined portion 7 a is positioned in parallel with the straight forwardly inclined portion 16 a on the lower side of the annular wall 16.

As shown in FIG. 5, reinforcing ribs 23 extending in the front-rear direction are formed on the projecting plate portion 7 so as to project outward (toward the vehicle body) in a plurality of stages in the vertical direction. The projecting plate portion 7 is also provided with vertical ribs 24, and the ribs 23, 24 in the front-rear direction and the vertical direction intersect to increase the strength, the bending rigidity of the projecting plate portion 7 is increased, and the force receiving the cap 6 is increased. It has been. Reinforcing ribs 25 (only part of which are shown) are also provided on the outer surface of the protector cover 4 so as to intersect with each other in the front and rear directions. The lowermost rib 23 ₁ protrudes horizontally from the lower end of the projecting plate portion 7, and the lower end inner portion of the projecting plate portion 7 is formed in an R shape (curved shape) while intersecting with the rib 23 ₁ 26), rubbing with the cap 6 is prevented.

  As shown in FIG. 5, the protruding plate portion 7 is slightly inclined so that the lower end side thereof approaches the vehicle body. The upper end of the projecting plate portion 7 continues to the sub annular wall 16 ′, and the annular wall 16 ′ is engaged with the inside of the annular wall 16 on the protector base 3 side. The lower part of the protector base 3 is curved toward the vehicle body, the curved lower end 26 of the projecting plate part 7 is located above the lower end 27a of the curved part 27, and the horizontally long lower opening 13 is located between both lower ends. Is located. The downward protruding length of the protruding plate portion 7 is set to a length that allows the wire harness 8 and the cap 6 to operate smoothly when the sliding door is opened and closed.

  The cap 6 abuts against the projecting plate portion 7 on the vehicle body side, and the position of the cap 6 is accurately defined, so that the wire harness 8 is connected to the front end 13a of the lower opening 13 of the protector 2 (FIGS. 1 and 3). The vehicle body 10 (FIG. 1) is detoured around the wheel arch part 11 to be led out from the middle of the lower opening 13 and the wire harness 8 is prevented from interfering with the wheel arch part 11. By receiving the cap 6 with the protruding plate portion 7, the pressing force (stress) of the wire harness 8 acting on the cap 6 is relieved.

In FIG. 5, when the slide door is fully opened, the cap 6 is located close to or in contact with the inside of the protruding plate portion 7 and is positioned in parallel. The cap 6 is formed in a substantially L-shaped cross section with a side plate portion 14 having a substantially vertical cross section and a substrate portion 28 having a substantially parallel cross section, and the cross section of the wire harness 8 along the side plate portion 14 is an oval shape. The corrugated tube 9 (FIG. 2) is located. The side plate portion 14 is longer than the long diameter of the corrugated tube 9 in the vertical direction, the substrate portion 28 is longer than the short diameter of the corrugated tube 9 in the left-right direction, and a rib 29 for preventing tube detachment is provided below the tip of the substrate portion 28. On the upper side of the substrate portion 28, a plate-like convex portion 15 is integrally raised from the side plate portion 14 in the same plane, and the convex portion 15 is connected to the substrate portion 29 by inner ribs 30 that intersect with each other. .

  As shown in FIG. 2, the base end portion 33 of the cap 6 is fixed to the distal end portion of the leaf spring by means such as insertion locking, and the convex portion 15 of the cap 6 has a mountain shape at the middle portion in the longitudinal direction of the side plate portion 14. It protrudes upward and has a short inclined portion 15 a on the front side (front end side) and a long inclined portion 15 b on the rear side, and each inclined portion 15 a, 15 b continues to the upper end of the side plate portion 14.

  The side plate portion (portion excluding the convex portion 15) 14 is formed wider toward the tip (front end) 6b, and the width is increased upward by the convex portion 15 in the middle portion, and the top portion (upper end) of the convex portion 15 is formed. 15 c is configured to smoothly abut along the inclined wall portion 16 a on the lower side of the annular wall 16.

  When the convex portion 15 abuts on the lower inclined surface 16 a of the annular wall 16, the cap 6 is pushed downward and the position is corrected as compared with the case where there is no convex portion 15, and the cap 6 is directed downward to the wire harness 8. Following this, the detachment of the wire harness 8 from the cap 6 is prevented. Moreover, since the area of the side plate part 14 increases by the convex part 15 and the area contact | abutted to the protrusion board part 7 of the protector cover 4 expands, the said effect by the protrusion board part 7 is accelerated | stimulated.

  As a result, the wire harness 8 is led out from the front end 13a of the lower opening 13 of the protector 2 to the vehicle body side by bypassing the wheel arch portion 11 of the vehicle body 10, and interference between the wheel arch portion 11 and the wire harness 8 is prevented. The

  A plurality of reinforcing ribs 31 are provided in the top (front half) side of the side plate portion 14 of the cap 6 in parallel in the vertical direction so that the side plate portion 14 has increased rigidity, and the wire harness 8 is strongly attached to the side plate portion 14. Even when it hits, the bending deformation of the side plate portion 14 toward the vehicle body side is prevented, and the wire harness 8 is accurately led out forward and the direction is restricted to prevent interference with the vehicle body 10. The rib 31 extends only in the vertical direction, but the direction of bending deformation of the side plate portion 14 is directed to the vehicle body (cabinet) and coincides with the compression direction of the rib 31, so that deformation of the side plate portion 14 is prevented. It is effective. Of course, ribs intersecting in the front-rear and up-down directions may be used.

  1B and 3, the sliding door is fully opened by sliding backward in the vehicle, and the wire harness is pulled forward from the protector 2 on the sliding door side with the harness support 12 on the vehicle body side as a fulcrum. 8 is routed without interference with a gap 32 between the rear side wheel arch portion 11 of the vehicle body 10.

  As the slide door is closed forward from the state of FIGS. 1B and 3, the wire harness 8 tends to hang down when the protector 2 comes closest to the harness fixture 12 on the vehicle body side. The wire harness 8 is pulled into the protector 2 by the upward biasing force of the spring 5 to absorb the excess length, and as the slide door slides further forward, the wire harness is in the fully closed state of FIG. 8 swings forward in the horizontal direction and is pulled backward toward the harness support 12 from the rear portion of the protector 2. These functions are the same as those of the conventional example of FIG.

  The harness fixture 12 is provided with an inner member rotatably inside the outer member (not shown) in the same manner as in the prior art, and the flat corrugated tube 9 of the wire harness 8 is fixed to the inner member. . The corrugated tube 9 has circumferential concave grooves 9a and ridges 9b (FIG. 2) arranged in parallel in the longitudinal direction of the tube and exhibits good flexibility. It is arranged in a vertically long cross section.

  It is possible to use a corrugated tube having a circular cross section, a mesh tube instead of the corrugated tube having an oval cross section, or a wire harness by binding a plurality of electric wires.

  Moreover, in the said embodiment, although the leaf | plate spring 5 was used for harness extra length absorption, it can replace with the leaf | plate spring 5 and can use a rod-shaped spring, a coil spring, etc. (not shown) as an elastic member. is there. Moreover, the shape of the protector 2, the form of the lead-out path 22 of the wire harness 8 toward the slide door, and the like can be appropriately set as necessary.

  Further, for example, the short cap 74 of the conventional example of FIG. 6 can be applied to the protruding plate portion 7 provided on the protector cover 4. Moreover, it is also possible to apply the conventional protectors 72 and 81 (FIG. 6, FIG. 7) without the protruding plate part 7 with respect to the convex part 15 provided in the cap 6. FIG. Also in these cases, the harness guide function is exhibited by the single action of the protruding plate portion 7 and the convex portion 15, and interference between the wire harness 8 and the vehicle body 10 is prevented.

  In the above embodiment, the wire harness 8 is reduced in a loop shape together with the leaf spring 5 in the protector 2 when the ride door is fully opened as shown in FIG. 1 and 3 when the sliding door is fully closed, and the wire harness 8 is expanded in a substantially mountain shape together with the leaf spring 5 in the state shown in FIG. It is also possible to set when the sliding door is fully open. However, in this case, since the time when the sliding door is fully closed is longer than the time when the sliding door is fully opened, there is a concern that a long bending load is applied to the leaf spring 5 and the wire harness 8.

  Moreover, the structure of the said embodiment is effective not only as the electric power feeder 1 for slide doors but also as a harness wiring structure for electric power feeding, and a protector structure and a spring cap structure individually.

(A) is a front view which shows one Embodiment of the electric power feeder for slide doors which concerns on this invention, (b) is a top view similarly. It is a front view which shows the principal part of the electric power feeder of FIG. It is a front view which shows the state of the electric power feeder at the time of a fully open slide door. It is a front view which shows the state of the electric power feeder at the time of a fully closed slide door. It is AA sectional drawing of FIG. 1A and 1B show an embodiment of a conventional power supply device for a sliding door, in which FIG. 1A is an exploded perspective view of a sliding door in a state close to being fully closed, and FIG. The other form of the conventional sliding door electric power feeder is shown, (a) is a front view when the sliding door is fully closed, (b) is a perspective view of the main part, and (c) is when the sliding door is fully opened and fully closed. It is a top view which shows a state.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric power feeder 2 Protector 5 Leaf spring (elastic member)
6 Cap (harness guide member)
7 Projecting plate (projecting part)
8 Wire harness 10 Vehicle body 13 Lower opening (long opening)
15 convex portion 16 annular wall 23, 24 rib 31 rib

Claims (5)

A surplus length absorbing elastic member having a harness guide member on the tip side is provided in a protector base comprising a protector base and a protector cover facing each other on the slide door side, the protector base is fixed to the slide door panel, and the wire harness is In the sliding door power supply device supported by the harness guide member and led out from the elongated opening of the protector to the vehicle body side, when the elastic member is reduced in a loop shape together with the wire harness, the harness guide member power supply device for a sliding door, wherein a projecting portion for abutting the side facing the protector thickness direction was extended to at Oite the protector cover to said open side of said protector at.   The power supply device for a sliding door according to claim 1, wherein a reinforcing rib is formed on the protruding portion. A surplus length absorbing elastic member provided with a harness guide member on the tip side is provided in a protector base comprising a protector base and a protector cover facing each other on the sliding door side , an annular wall is provided on the protector base, and the protector base is In a sliding door power feeding device that is fixed to a sliding door panel and supports a wire harness by the harness guide member and is led out from the elongated opening of the protector to the vehicle body side, the inclined portion inclined toward the opening is formed in the annular shape. formed in the wall, when the elastic member is reduced in diameter in a loop together with the wire harness along the annular wall in the protector, the harness guide the opening abuts on the inclined portion of the annular wall Sula, wherein a convex portion for moving to the side, is provided on the harness guide member to face the inclined portion of the annular wall Dodoa for the power supply device.   4. The sliding door power feeding device according to claim 3, wherein a reinforcing rib is formed on the convex portion. When the elastic member is shrunk in a loop shape along with the wire harness along the annular wall, a protrusion that abuts the side surface of the harness guide member that faces the thickness direction of the protector is provided on the opening side of the protector. 4. The sliding door power supply device according to claim 3, wherein the cover is extended .

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