JP2006036155A - Device for supplying power - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enhance operability of a slider by reducing a bending rigidity of a wire harness in a case. <P>SOLUTION: The device 1 for supplying power has the case 3 storing the wire harness 2 by bending it from one wall part 6 to the other wall part 5 and a slider 4 provided slidably in the case and holding and leading the wire harness outside. The slider 4 holds the wire harness 2 slantly toward the other wall part 5 in the case. An oblong opening 12 for leading the harness is formed along the other wall part 5, and a rail part 13 for fitting the slider 4 slidably in the vicinity of the opening. The wire harness 2 is arranged by intersecting the rail part. One wall part 6 of the case 3 is inclined in the widening direction of the width on the side of a bending part 2c of the wire harness. A swing member 21 is swingably formed in the slider 4, and the wire harness 2 is led outside from the slider through the swing member. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a power feeding device having a structure in which a wire harness is bent in a substantially U shape inside a case and led out through a slider.

  FIG. 5 shows an embodiment of a conventional power feeding device (see Patent Document 1).

  The power supply device 41 is mounted on a slide door 42 of an automobile, and a flat wire harness 45 is bent and accommodated in a substantially U-shape inside a horizontally long case 44, and a slider 46 is slidably provided in the case 44. One end of the harness 45 is fixed to the slider 46, and the other end of the wire harness 45 is fixed to the case 44.

  The slider 46 is connected to the vehicle body 43 by a flexible arm 47, and a wire harness 48 on the vehicle body side is wired from one end of the wire harness 45 along the arm 47 to continue to a power source or the like. The other end of the wire harness 45 is connected to a door-side wire harness (not shown) following an auxiliary machine (not shown) such as a power window motor, a door lock unit, a switch unit, and a speaker on the slide door side.

  The flat wire harness 45 is provided with a flexible reinforcing plate to prevent slack. The case 44 is provided with a bottom wall, and the wire harness 45 is bent in a substantially U shape along an upper wall 49 of the case 44 and a bottom wall parallel to the case 44.

When the slide door 42 is closed forward as shown by the arrow A from the door half-opened state in FIG. 5, the slider 46 moves relative to the rear of the case 44, and the wire harness 45 bends in a U shape with substantially the same length. . Further, when the sliding door 42 is opened rearward as shown by the arrow B from the door half-open state in FIG. 5, the slider 46 moves relatively to the front of the case 44, and the wire harness 45 has a lower portion 45b than the upper portion 45a. It becomes shorter and bends in an approximate J shape. As a result, the slack of the wire harness 45 is absorbed, and power is reliably supplied to each auxiliary machine in the slide door.
Japanese Patent Laid-Open No. 11-342807 (page 4, FIGS. 1 to 2)

  However, since the conventional power supply device 41 uses a flat wire harness as the wire harness 45, a flexible reinforcing plate that suppresses the slack of the wire harness 45 in the case is required. There was a problem that the installation cost and the parts cost were high.

  Therefore, the present applicant has devised the power feeding device shown in FIG. 6 using a normal wire harness having a substantially circular or oval cross section instead of the flat wire harness.

  The power feeding device 51 includes a case 52 made of synthetic resin, a slider 54 that is slidable along a bottom wall 53 of the case 52, and a swinging member 58 that is swingably supported by the lower half of the slider 54. The wire harness 55 is bent and accommodated in a substantially U shape or J shape in the case, and the one end side of the wire harness 55 is fixed to the slider 54 while being bent in a substantially U shape or a substantially crank shape. The other end side of the wire harness 55 is led to the outside from the moving member 58 and fixed to the upper wall 56 side of the case 52.

  The case 52 is formed in a horizontally long and substantially rectangular shape, and has walls 56 and 53 that are parallel in the vertical direction. The swinging member 58 protrudes downward from the bottom wall 53 of the case 52, and the wire harness 55 is routed from the slider 54 to the swinging member 58 so as to be bent in a substantially U shape or a substantially crank shape. To a moving structure such as a sliding door.

  When this power feeding device 51 is applied to a sliding door of an automobile, when the sliding door is opened, the slider 54 moves relatively to the front of the case 52 as shown by a chain line, and the lower half 55b of the wire harness 55 is When sliding forward along the bottom wall 53 and closing the sliding door, the slider 54 moves relatively rearward of the case 52 as indicated by the solid line, while the lower half 55b of the wire harness 55 is the bottom wall of the case 52. Slide back along 53. The case 52 moves back and forth integrally with the slide door, and the slider 54 does not move so much and is in a substantially fixed position together with the harness portion 57 for connection to the vehicle body side.

  The power supply device 51 can be applied to a slide seat, a rotary back door, a trunk, a slide door of a machine other than an automobile, and the like in addition to a slide door of an automobile. These slide doors, slide seats, trunks and the like are called moving structures, and the power source side of the vehicle body and the like is called a fixed structure.

  However, in the power feeding device 51, since the swing member 58 on the lower half side of the slider 54 protrudes downward from the case 52, the distance from the upper end of the case 52 to the swing member 58 increases. There is a problem that the power feeding device 51 is enlarged in the height direction, and there is a concern that the lower half of the slider 54 and the swinging member 58 interfere with the outside during sliding, and a smooth sliding operation is not performed. There was a problem that the appearance of 51 deteriorated.

  In the case of the wire harness 55 having a circular cross section, since the bending rigidity is high, the upper portion 55a and the lower portion 55b of the wire harness 55 are in strong sliding contact with the upper wall 56 and the bottom wall 53 of the case 52, respectively. There is a concern that wear of the wire harness 55 may occur, or an operation load of the slider 54, that is, an operation force of a moving structure such as a slide door may increase due to frictional resistance, resulting in deterioration of operability. If the height of the case 52 is increased in order to prevent this (if the space between the upper wall 56 and the bottom wall 53 is widened), the power feeding device 51 is enlarged in the height direction, and a moving structure such as a slide door is formed. This causes a problem that the arrangement space is limited.

  In view of the above-described points, the present invention prevents the enlargement of the power feeding device due to the protrusion of the slider from the case, interference with the outside, and the like, and reduces the friction between the wire harness and the case, thereby reducing the operability of the slider. An object of the present invention is to provide a power feeding device that can increase the height of the case and prevent the case from becoming enlarged.

  In order to achieve the above object, a power feeding device according to claim 1 of the present invention is provided with a case for bending and housing a wire harness from one wall portion to the other wall portion, and slidably provided in the case. A power supply device comprising a slider for holding the wire harness to be led out to the outside, wherein the slider holds the wire harness in an inclined manner toward the other wall in the case. To do.

  With the above configuration, the wire harness is bent in a substantially U shape from one wall portion to the other wall portion of the case, and is routed in an inclined shape from the other wall portion to the slider. In this case, the wire harness is routed in a substantially half loop shape from one wall portion to the slider. Thus, a large bending load is not applied to the wire harness in the case, particularly in the vicinity of the slider, the bending rigidity of the wire harness is weakened, and the sliding friction between the wire harness and one and the other wall portion is reduced. Regardless of the sliding position of the slider in the case, the above action is always achieved.

  A power supply device according to a second aspect is the power supply device according to the first aspect, wherein an elongated opening for leading out the harness is provided along the other wall portion, and the slider is slidably engaged in the vicinity of the opening. A rail part to be combined is provided, and the wire harness is located so as to cross the rail part.

  With the above configuration, the wire harness is routed from the slider to the other wall portion crossing the rail portion. The wire harness is inclined substantially linearly from the other wall portion to the slider. A long opening for leading out the harness is located between the other wall portion and the rail portion, and the wire harness is located on the other wall portion so as to face the opening. By arranging the wire harness using the space in the opening, the radius of the bent portion of the wire harness is expanded, and the bending rigidity of the wire harness is weakened. This state appears remarkably when the slider is moved to one end side of the case.

  According to a third aspect of the present invention, in the power feeding device according to the first or second aspect, the one wall portion of the case is inclined in the widening direction on the bent portion side of the wire harness.

  With the above configuration, the substantially U-shaped bent portion of the wire harness is expanded along one inclined wall portion and bent with a large radius. This state appears remarkably when the slider is moved to the other end side of the case.

  A power supply device according to a fourth aspect is the power supply device according to any one of the first to third aspects, wherein a swing member is swingably provided on the slider, and the wire harness moves the swing member from the slider. It is characterized by being derived to the outside.

  With the above configuration, the swinging member swings with the movement of the slider in the case to absorb the twist of the harness portion from the slider.

  According to the first aspect of the invention, since the slider is completely accommodated in the case, enlargement of the power feeding device or interference with the outside due to the protrusion of the conventional slider is surely prevented, and The wire harness is routed in an inclined manner from the other wall to the slider in the case, so that the bending rigidity of the wire harness is weakened and the sliding friction between the wire harness and the case is reduced. The force is reduced, operability is improved, and enlargement in the height (width) direction of the case is prevented.

  According to the invention of claim 2, by arranging the wire harness using the space in the long opening, the radius of the bent portion of the wire harness is expanded, and the bending rigidity of the wire harness is weakened. The sliding friction between the wire harness and the case is further reduced, the operation force of the slider is further reduced, and enlargement in the height (width) direction of the case is prevented, thereby making the case compact.

  According to the invention described in claim 3, since the diameter of the bent portion of the wire harness is increased along one inclined wall portion, the bending rigidity of the wire harness is weakened, and the sliding friction between the wire harness and the case is reduced. Further reduction is achieved, the operating force of the slider is further reduced, and enlargement in the height (width) direction of the case is prevented, thereby making the case compact.

  According to the fourth aspect of the present invention, since the swinging member swings as the slider moves and absorbs the twist of the harness portion from the slider, the slider moves smoothly, and the operability of the slider is improved. improves.

  1 to 4 show an embodiment of a power feeding device according to the present invention. FIG. 1 shows an outline of the power feeding device, FIGS. 2 and 3 show a form of the power feeding device when the slider is moved, and FIG. 4 shows an example of the slider.

  The power supply device 1 is provided with a substantially rectangular synthetic resin case 3 that houses the wire harness 2 bent in a substantially U shape or a J shape, and is slidable in the case longitudinal direction within the case. And a slider 4 made of synthetic resin, and the slider 4 leads the wire harness 2 obliquely downward toward the bottom wall 5 of the case 3 in the case.

  The case 3 of this example is provided with the upper wall 6 (one wall portion) slightly inclined, the rear half 6b of the upper wall 6 is formed slightly higher than the front half 6a, and the front half 6a is formed horizontally. . A narrow opening 7 for leading out the harness is provided at the rear part of the front half 6a, and the wire harness 2 is fixed to the case 3 by a fixing means (not shown) such as a band in the vicinity of the opening 7.

  Walls 8 and 9 are vertically provided at the front end and the rear end of the case 3, respectively, and the upper wall 6 and the front and rear wall portions 8 and 9 are respectively a vertical base wall 10 and a cover wall 11 that face each other in the case thickness direction. An oblong opening 12 for leading out the harness is provided on the upper side of the horizontal bottom wall (the other wall portion) 5 perpendicular to (FIG. 2), and the front and rear ends 12a and 12b (FIG. 2) of the opening 12 are open. The cover wall 11 is located above the opening 12, the lower end of the cover wall 11 is the upper end of the opening 12, and the bottom wall 5 continues perpendicular to the lower end of the base wall 10. The rear end 12 b of the opening 12 may be sealed with a downward extension (not shown) of the rear wall 9.

  The bottom wall 5 is located opposite to the lower side of the harness housing space surrounded by the cover wall 11, the base wall 10, the front and rear walls 8, 9, and the upper wall 6. A pair of rail portions 13 having a slider 4 slidably engaged with the inner surface of 10 are provided horizontally and facing each other. The rail portion 13 is formed in a rectangular or triangular cross section, and a pair of groove portions 14 (see FIG. 2) that are slidably engaged with each rail portion 13 in the height direction intermediate portion (substantially center) of the left and right side surfaces of the slider 4. ) Is provided.

  A horizontal slit-shaped opening 15 is formed between the pair of rail portions 13, and the harness housing space (substitute with reference numeral 10) is opened toward the bottom wall 5 between the pair of rail portions 13, Between the opening 15 and the bottom wall 5, a horizontally long space (represented by reference numeral 12) for harness accommodation and slider movement is formed. A gap between the pair of rail portions 13, that is, an inner width dimension of the slit-shaped opening 15 is set to be slightly larger than an outer diameter of the wire harness 2. The slit-shaped opening 15 continues orthogonally to the harness lead-out opening 12.

  The slider 4 includes an upper half block portion 16 and a lower half frame-like portion 17, and the block portion 16 has a downward inclined surface 16 a at the rear end, and the wire harness 2 is orthogonal to the inclined surface 16 a. It is led out obliquely downward and can enter the lower space (12) from the slit-like opening 15 between the rail portions 13.

  As shown in FIG. 4, a harness insertion hole 18 is provided in a substantially arc shape or curved shape in the upper half block portion 16 of the slider 4, and the end opening 18a of the harness insertion hole 18 opens in the inclined surface 16a at the rear end. The insertion hole portion 18b following the end opening 18a extends obliquely upward (is formed to be inclined obliquely downward toward the end opening 18a) and is substantially inverted S-shaped toward the outlet 23b of the swing member 21. The harness insertion holes 18 and 23 are configured.

  At the end of the harness insertion hole 18, for example, a synthetic resin net-like tube which is a protective tube 19 on the outer periphery of the wire harness 2, a sharp projection for fixing the end of a flexible tube, or a synthetic resin corrugated tube A protrusion 20 such as a rib for fixing the end is provided.

  The block portion 16 of the slider 4 is formed, for example, so that it can be divided into right and left, a substantially semicircular harness insertion groove is provided inside each divided block, and a pair of harness insertion grooves are combined to form a harness insertion hole 18. It is preferable. The respective divided blocks are locked with each other by locking means (not shown) such as a locking claw and an engaging recess.

  The block portion 16 is integrated with the lower half frame-shaped portion 17, and the frame-shaped portion 17 has upper and lower and one side wall portions 17 a to 17 c and is formed in a substantially U shape, and is made of a synthetic resin inside. There is a space in which the swing member 21 is swingably accommodated. The lower wall 17b of the frame portion 17 is slidable along the bottom wall 5 of the case 3 (FIG. 2).

  The oscillating member 21 is formed in a rectangular block shape and can be divided into upper and lower parts (the dividing surface is indicated by reference numeral 22), and has a harness insertion groove having a substantially semicircular or arcuate cross section in each divided block. A harness insertion hole 23 having a circular or oval cross section is formed by combining the insertion grooves. Both the divided blocks are locked with each other by locking means (not shown) such as locking protrusions and engaging frame pieces while being positioned by positioning means (not shown) such as positioning convex portions and concave portions. These positioning means and the like can also be applied to the block portion 16 of the slider 4.

  Each of the upper and lower divided blocks has upper and lower bosses 25 and 26 serving as a rotation center, and the upper boss 25 is formed in an annular shape, and has an upper opening 23a of the harness insertion hole 23 on the inner side. The outlet 23b side of the harness insertion hole 23 is formed horizontally. The upper and lower bosses 25 and 26 are rotatably engaged with the upper and lower concave portions 28 and 29 of the lower frame portion 17 of the slider 4. The swing member 21 is swingable in the horizontal direction around the bosses 25 and 26.

  A corrugated tube 27 having an oval cross section is engaged with the swinging tip side of the swinging member 21. Locking is performed by engaging the rib on the inner surface of the harness insertion hole with the circumferential groove of the corrugated tube. A plurality of electric wire portions 30 are exposed and inserted into the harness insertion hole between the corrugated tube and the protection tube 19 on the block side. The wire harness 2 includes these protective tubes 19 and 27 and a plurality of electric wires 30.

  As shown in the solid line in FIG. 1 and FIG. 2, when the slider 4 moves to the rear wall side (side) of the case 3, the wire harness 2 is led obliquely downward from the block portion 16 in the upper half of the slider 4 to form a slit shape. While projecting downward from the opening 15, it smoothly curves and rises along the rear wall 9 in a superior arc shape (arc shape larger than a semicircle). An upper portion (forward portion) 2a of the wire harness 2 following the bent portion 2c is located obliquely downward toward the front along the inclined upper wall 6 of the case 3.

  Since the wire harness 2 is led obliquely downward from the block portion 16 of the slider 4, the bent portion 2c for folding the wire harness 2 is smoothly bent to a large radius in a shape close to a loop shape instead of a U shape. (The bending radius of the wire harness 2 becomes larger than when the wire harness 2 is led straight back rather than obliquely downward), thereby reducing the bending stress acting on the wire harness 2 and bending the wire harness 2. The upper part (outward part) 2a and the lower part (rear part) 2b of the wire harness 2 come into contact with the upper wall 6 and the bottom wall 5 of the case 3 with a small force. As a result, the bending durability of the wire harness 2 is improved and the operating force of the slider 4 is reduced.

  The inclined upper wall 6 of the case 3 helps to bend the bent portion 2c of the wire harness 2 with a large radius. When the inclined rear half 6b of the upper wall 6 has the same height as the horizontal rear half 6a, the bending radius of the wire harness 2 is slightly reduced. However, the action of increasing the radius of the bent portion 2c of the wire harness 2 is similarly exhibited when the wire harness 2 is led obliquely downward from the block portion 16 of the slider 4 and protrudes below the slit-like opening 15. Therefore, even if the inclined rear half 6b of the upper wall 6 is the same height as the horizontal front half 6a, the bending stress (load) of the wire harness 2 can be reduced and the wire harness 2 and the case 3 can be reduced. The effect of friction reduction is demonstrated not a little.

  When the upper wall 6 of the case 3 is inclined as shown in FIG. 2, the substantially trapezoidal space above the upper wall 6 is saved, and the case 3 is made compact accordingly. When the rear half 6b of the upper wall 6 of the case 3 is formed in parallel with the same height as the front half 6a, the rectangular space above the upper wall 6 is saved, and the case 3 is greatly reduced in size. The

  When the slider 4 moves to the front wall 8 side of the case 3 as shown in the chain line in FIG. 1 and FIG. 3, the wire harness 2 is led out obliquely downward from the block portion 16 in the upper half of the slider 4, and between the rail portions. The lower portion 2 b of the wire harness 2 is positioned horizontally along the bottom wall 5 of the case 3 through the slit-shaped opening 15.

  Since the wire harness 2 is led out obliquely downward from the block portion 16, the wire harness 2 is guided into the lower space 12 while being inclined substantially linearly without being bent. For example, when the wire harness 2 is led rearward from the block portion 16 in the horizontal direction instead of diagonally downward, the wire harness 2 bends downward at a position slightly rearward from the block portion 16 and is opposite to the bending direction. Is bent again on the bottom wall 5 side in this direction, and the wire harness 2 is bent in a substantially S shape (this is the same in the solid line in FIG. 1 and FIG. 2), and the slider 4 extends from the top wall 6. The overall bending radius of the bent portion of the wire harness 2 over the opening 7 is slightly smaller, and the upper portion 2a and the lower portion 2b of the wire harness 2 are applied to the upper wall 6 and the bottom wall 5 of the case 3 with a slightly large force. The bending load of the wire harness 2 increases due to the contact, and the bending of the wire harness 2 in the vicinity of the slider 4 increases the durability of the wire harness 2 slightly. That.

  By leading the wire harness 2 obliquely downward from the block portion 16, these concerns are eliminated, the overall bending radius of the wire harness 2 is increased, and the frictional force between the wire harness 2 and the case 3 during the slider operation is increased. As a result, the durability of the wire harness 2 is increased, the operating force of the slider 4 is reduced, and the operability is improved.

  When the power feeding device 1 is mounted on the left sliding door (moving structure) of the automobile, the solid line in FIG. 1 and the state in FIG. 2 are fully closed. The slider 4 is pulled backward in the case, the wire harness 2 bends in a state close to a loop on the rear side of the case 3, and the swing member 21 swings obliquely rearward.

  A harness portion 31 led out from the opening 7 on the upper side (fixed side) of the case 3 is routed in the slide door, and includes a power window motor, door lock unit, door mirror drive motor, speaker, courtesy lamp, and switch unit of the slide door. The connector is connected to the auxiliary machine. A harness portion (substitute with reference numeral 27) led out through the slider 4 and the swing member 21 is connected to a wire harness on the vehicle body side via a transition space between the slide door and the vehicle body (fixed structure). .

  By sliding the sliding door backward from the fully closed state of the sliding door, the chain line of FIG. 1 and the sliding door of FIG. 3 are fully opened. The slider 4 is located at the front portion of the case 3, and the wire harness 2 is extended in a state close to a horizontally long half-loop in the case, and the swing member 21 swings obliquely forward.

  The power feeding apparatus 1 is not limited to a sliding door of an automobile or a device, but can be applied to a sliding seat of an automobile. In this case, the harness portion 31 led out from the opening 7 on the upper side of the case 3 is connected to the floor wire harness on the power supply side by a connector, and the harness portion 27 led out from the swing member 21 is used as a seating sensor for a slide seat, a heater, etc. Connected to auxiliary equipment.

  When applied to a slide sheet, it is preferable to arrange the case 3 not horizontally (vertically) but horizontally (landscape). Moreover, it is also possible to arrange | position the said electric power feeder 1 on the vehicle body side instead of a sliding door. In this case, the harness portion 31 led out from the opening 7 on the fixed side is connected to the wire harness on the vehicle body (power source side), and the harness portion led out from the swing member 21 is routed to the slide door side through the crossing space. Is done.

  The power feeding device 1 can also be applied to a rotational moving structure such as a trunk and a back door, and other lifting and lowering moving structures. In these cases, the longitudinal direction of the power feeding device 1 is set to the vertical direction, the harness part 31 on the fixed side is connected to the power supply side circuit, and the harness part 27 on the swing side is routed to the moving structure.

  Further, although the swing member 21 is used in the above embodiment, when the swing angle of the harness portion 27 is small, the swing member 21 is removed and the harness portion 27 is directly connected from the lower half of the slider 4. It is also possible to derive it externally. In this case, it is preferable that the lower half 4b of the slider 4 is formed in a block shape, and a harness insertion hole for bending the wire harness 2 in the orthogonal direction is provided therein.

  Further, instead of sliding the groove portion 14 of the slider 4 on the rail portion 13 of the case 3, a pulley or the like that engages with the rail portion 13 may be rotatably provided on the slider. Further, only one rail portion 13 is provided in the case instead of a pair, and the slider 4 is slid on the inner wall surface of the case 3 with a rotating ball or the like on the opposite side of the rail portion 13 or the slider 4 is slid. It is also possible to form the moving surface with a low friction material. In addition, a slit-like long hole (not shown) or groove is provided in the case 3 as the rail portion 13, and the protruding shaft (not shown) of the slider 4 can be slidably engaged with the long hole or groove. It is.

  It is also possible to form the front half 6a of the upper wall 6 of the case 3 lower through a step for further space saving, and to provide a harness lead-out opening (7) in the step.

It is a front view which shows the outline | summary of one Embodiment of the electric power feeder which concerns on this invention. It is the perspective view of the state which moved the slider in the detailed example of an electric power feeder similarly to the one end side. It is the perspective view of the state which moved the slider in the detailed example of the electric power feeder similarly to the other end side. It is a longitudinal cross-sectional view which shows one Embodiment of a slider. It is a perspective view which shows one form of the conventional electric power feeder. It is a front view which shows the outline | summary of the other form of the conventional electric power feeder.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric power feeder 2 Wire harness 2c Bending part 3 Case 4 Slider 5 Bottom wall (the other wall part)
6 Upper wall (one wall)
12 Opening 13 Rail part 21 Oscillating member

Claims (4)

  A power supply device comprising: a case that accommodates a wire harness bent from one wall portion to the other wall portion; and a slider that is slidably provided in the case and that leads to the outside while holding the wire harness. The power supply apparatus, wherein the slider holds the wire harness in an inclined manner toward the other wall portion in the case.   A long opening for leading out the harness is provided along the other wall, and a rail is provided in the vicinity of the opening for slidably engaging the slider. The wire harness intersects with the rail. The power feeding device according to claim 1, wherein   3. The power feeding device according to claim 1, wherein the one wall portion of the case is inclined in a widening direction on a bent portion side of the wire harness.   The power feeding device according to claim 1, wherein a swing member is swingably provided on the slider, and the wire harness is led out from the slider through the swing member. .

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