JP2008279928A - Wiring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wiring device capable of obtaining high quality sense by preventing generation of friction with a wire harness and noise. <P>SOLUTION: The wiring device 10 is provided with the wire harness 120 connected to a movement body; a case 11 for extending the wire harness 120 in a movement direction of the movement body and storing it in the state that the wire harness 120 is folded/returned in the U shape; and a slider 13 for retaining one end of the wire harness 120 connected to the movement body and moved with the movement body; and a wire harness support member 12 accompanied with a portion from one end retained to the slider 13 of the wire harness 120 to the folded/returned part and longitudinally movably supported on the case 11 along a movement direction of the movement body. The slider 13 has a first rotor 21 engaged with the case 11 and rotated accompanying with movement of the slider 13; and a second rotor 22 rotated with the first rotor 21 and having a smaller diameter than the first rotor 21. The second rotor 22 is engaged with the wire harness support member 12 and is rolled on the wire harness support member 12 without slipping. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a routing device that routes a wire harness between a floor and a moving body such as a seat or a console box assembled on a floor of a vehicle, for example.

  An example of a conventional routing device is shown in FIG. A routing device 100 shown in FIG. 6 includes a case 102 that houses a wire harness 101 folded in a U shape, a slider 103 that holds one end of the wire harness 101, and a harness support member 104 attached to the wire harness 101. It has. The harness support member 104 is supported by the case 102 so as to be slidable in the same direction as the movement direction of the slider 103. The harness support member 104 includes a pair of guide plates 105 and 106 that are slidably engaged with the folded portion 101a of the wire harness 101, and the wire harness 101 from one end held by the slider 103 to the folded portion 101a. A support plate 107 attached to the linear portion 101b is provided.

  The slider 103 is moved together with a moving body such as a seat and a console box, and pushes and pulls the wire harness 101. Accordingly, the wire harness 101 is deformed so that the folded portion 101a is moved back and forth. The harness support member 104 is moved back and forth so that the guide plates 105 and 106 are pressed by the folded portion 101 a of the wire harness 101 that slides between the pair of guide plates 105 and 106 to follow the deformation of the wire harness 101. . The wire harness 101 is stably supported in a U-shape by the harness support member 104 even during the deformation in which the folded portion 101a is moved back and forth, thereby preventing the wire harness 101 from buckling in the case 102. (For example, refer to Patent Document 1).

JP 2006-74980 A

  However, in Patent Document 1, when the harness support member 104 is moved back and forth following the deformation of the wire harness 101 that moves the folded portion 101a back and forth, the folded portion 101a of the wire harness 101 is slid on the guide plates 105 and 106. The harness support member 104 is moved by pressing the guide plates 105 and 106 with the folded portion 101a. For this reason, there is a possibility that noise of the wire harness 101 is generated due to friction or sliding.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a routing device capable of connecting a wire harness to a moving body that is slid while preventing generation of friction and abnormal noise. There is to do.

  The above-described object is achieved by the following routing devices (1) to (3) according to the present invention.

(1) a wire harness connected to a moving body that is moved back and forth along a predetermined direction;
A case that extends and accommodates the moving body in a moving direction in a state in which the wire harness is folded in a U-shape, and holds one end of the wire harness connected to the moving body and is moved together with the moving body. A wire harness support member attached to a portion from one end of the wire harness held by the slider to a folded portion and supported by the case so as to move back and forth along the moving direction of the moving body, The slider is engaged with the case and rotated with the movement of the slider, and the first rotor having a smaller diameter than the first rotor rotated together with the first rotor. The second rotor engages with the wire harness support member and rolls without sliding on the wire harness support member. Search equipment.
(2) In the above (1), the second rotor is a gear, and a rack is provided at an engaging portion of the wire harness support member with the second rotor. Routing device.
(3) The routing device according to (1) or (2) above, wherein the ratio of the diameter of the first rotor to the diameter of the second rotor is 2: 1.

  According to the present invention, the slider is moved together with the moving body, and the wire harness whose one end is held by the slider is deformed so that the folded portion moves back and forth. Thereby, the position and length of the part from the end held by the slider of the wire harness to the folded portion change. Specifically, when the slider is moved toward the folded portion, the length of the portion becomes shorter, and the portion moves in the case in the moving direction of the slider. When the slider is moved, the first rotor rotates, and the second rotor rotates together with the first rotor. The second rotor having a smaller diameter than the first rotor rolls without sliding on the wire harness support member, and moves the wire harness support member relative to the slider in a direction opposite to the moving direction of the slider. Since the amount of movement is smaller than the amount of movement of the slider, the wire harness support member is moved with respect to the case in the direction of movement of the slider. As a result, the position of the part from the one end held by the slider to the turn-up portion with the movement of the slider and without passively moving the wire harness supporting member by pushing and pulling the wire harness supporting member with the wire harness as in the past. Corresponding to the deformation of the wire harness that changes the length as described above, the wire harness support member is actively moved to appropriately support the part from one end held by the slider of the wire harness to the folded portion. it can. Thus, when moving the wire harness support member, it is not necessary to slide the wire harness so as to press the wire harness support member, so that the wear of the wire harness is prevented and the generation of abnormal noise is prevented. be able to.

  Further, the second rotor is a gear, and the rack is provided at the engaging portion of the wire harness support member with the second rotor, thereby causing the second rotor to slip on the wire harness support member. Can be rolled without any problems.

  In addition, since the amount of change in the position and length of the portion from the one end held by the slider of the wire harness folded back in a U-shape to the folded portion is half of the amount of movement of the slider, the first rotor The ratio of the diameter to the diameter of the second rotor is preferably 2: 1.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is an embodiment of the routing device of the present invention, and is a plan view showing a case partially cut away, FIG. 2 is a perspective view of the main part of the routing device of FIG. 1, and FIG. III-III sectional view, FIG. 4 and FIG. 5 are plan views for explaining the operation of the routing device of FIG. In the following description, front, rear, left, and right are described according to the direction of the vehicle body, and the left rear in FIG. 1 is the front of the vehicle body.

  As shown in FIGS. 1 to 3, the routing device 10 of the present embodiment includes a case 11, a wire harness support member 12, and a slider 13, and a movable body (not shown) such as a seat and a console box The wire harness 120 is routed between the floor (not shown).

  The case 11 includes an upper case 14 and a lower case 15, and a lower case side tooth portion 17 that is a rack is formed on a bottom plate 16 of the lower case 15.

  The wire harness support member 12 includes a pair of wire harness straight guide portions 18 and 19 and a wire harness support member side tooth portion 20 that is a rack. The wire harness support member 12 is accommodated in the case 11 so as to be slidable on the bottom plate 16 of the lower case 15.

  The slider 13 includes a large-diameter gear 21 that is a first rotor and a small-diameter gear 22 that is a second rotor integrated with the large-diameter gear 21 and is rotatably supported by a gear support portion 23. The wire harness 120 bound to the wire harness binding portion 24 along the floor surface is led out from the wire harness lead-out portion 25 upward. The slider 13 is connected to the moving body.

  The case 11 has an upper case 14 attached to the upper open portion of the lower case 15, and the upper case 14 corresponds to the wire harness lead-out portion 25 of the slider 13 in the longitudinal direction that is the length direction thereof. A wire harness outlet hole 26 is formed.

  The lower case side tooth portion 17 of the lower case 15 is formed long in the front-rear direction, which is the length direction of the lower case 15. Further, the lower case 15 has a lower case wire harness lead-out hole 27 formed on the left side of the central portion.

  The wire harness support member 12 is formed to be approximately half the length of the case 11, and wire harness curve guide portions 28 and 29 are connected to the wire harness straight guide portions 18 and 19, respectively. The end portions of the harness curve guide portions 28 and 29 are arranged to face the lower case wire harness lead-out portion 27 of the lower case 15. The wire harness support member side tooth portion 20 is formed in parallel with the wire harness straight guide portions 18 and 19 and has a length equivalent to that of the wire harness straight guide portions 18 and 19.

  Between the wire harness straight guide portions 18 and 19 and between the wire harness curve guide portions 28 and 29, the wire harness 120 drawn from the wire harness binding portion 24 of the slider 13 is accommodated. The floor side is drawn out from the lower case wire harness outlet hole 27 to the floor side. The wire harness support member 12 is movable in the front-rear direction of the case 11 on the lower case side tooth portion 17 of the lower case 15.

  In the slider 13, a large-diameter gear 21 and a small-diameter gear 22 are rotatably supported on a pivot 30. The ratio of the diameter of the large-diameter gear 21 to the diameter of the small-diameter gear 22 is set to 2: 1. The wire harness support member side teeth 20 of the support member 12 are engaged with each other.

  Therefore, when the slider 13 moves rearward, the large diameter gear 21 is rotated while meshing with the lower case side tooth portion 17, and the small diameter gear 22 is rotated together with the large diameter gear 21. At this time, the small-diameter gear 22 having a diameter smaller than that of the large-diameter gear 21 rotates while meshing with the tooth portion 20 on the side of the wire harness support member, so that it rolls without sliding on the wire harness support member 12 and moves relative to the slider 13. The wire harness support member 12 is moved in the direction opposite to the movement direction of the slider 13, but the movement amount is smaller than the movement amount of the slider 13, so that the wire harness support member 12 is dragged with respect to the case 11. The slider 13 is moved in the moving direction.

  In such a routing device 10, the case 11 is fixed on the floor, and one end of the wire harness 120 led out from the upper case wire harness lead-out hole 26 of the upper case 14 is built in the moving body. The other end of the wire harness 120 that is electrically connected to the wire harness and led out from the lower case wire harness lead-out hole 27 of the lower case 15 is electrically connected to the floor wire harness.

  When the moving body is in the foremost position, referring to FIG. 1, the slider 13 is in the foremost position A1, and the wire harness support member 12 is in the position B1. When the moving body starts moving rearward, the slider 13 starts to slide backward together with the moving body while the large-diameter gear 21 meshes with the lower case side tooth portion 17. The wire harness support member 12 in which the support member side teeth 20 mesh with the small-diameter gear 22 also starts to move backward. At this time, the wire harness 120 is twisted because the straight portion 121 is supported and moved by the wire harness straight guide portions 18 and 19, and the folded portion 122 is supported and moved by the wire harness curve guide portions 28 and 29. It moves smoothly without causing slack.

  As shown in FIG. 4, when the slider 13 is moved backward to the position A2, the wire harness support member 12 is moved backward so as to be dragged to the position B2 by a movement amount that is half of the movement amount of the slider 13. Go. At this time, the wire harness 120 includes a straight portion supported by the wire harness straight guide portions 18 and 19 so that the wire harness binding portion 24 of the slider 13 approaches the wire harness curve guide portions 28 and 29 of the wire harness support member 12. While the length 121 is shortened, the folded portion 122 is supported and moved by the wire harness curve guide portions 28 and 29.

  As shown in FIG. 5, the wire harness support member 12 that has continued to move backward by half the amount of movement of the slider 13 continues, and the slider 13 reaches the final position A3. Is moved backward to position B3. At this time, the wire harness 120 is a straight line supported by the wire harness straight guide portions 18 and 19 so that the wire harness binding portion 24 of the slider 13 is closest to the wire harness curve guide portions 28 and 29 of the wire harness support member 12. The part 121 becomes the shortest, and the folded part 122 is supported and moved by the wire harness curve guide parts 28 and 29.

  Contrary to the above, when the moving body at the last position starts to move toward the foremost position, the slider 13 at the last position A3 is moved back toward the foremost position A1 in the opposite direction to the above. The wire harness support member 12 is moved back to the position B1 by a half movement amount in synchronization with the 13 slide movements.

  As described above, according to the routing device 10 of the present embodiment, the slider 13 is moved together with the moving body, and the wire harness 120 held by the wire harness binding portion 24 of the slider 13 moves the folded portion 122 back and forth. It deforms as follows. Thereby, the position and length of the part from the end held by the slider 13 of the wire harness 120 to the folded-back portion 122 change. That is, when the slider 13 is moved toward the folded portion 122, the length of the portion is shortened, and the portion moves in the case 11 in the moving direction of the slider 13. When the slider 13 is moved, the large diameter gear 21 rotates while meshing with the lower case side tooth portion 17, and the small diameter gear 22 rotates together with the large diameter gear 21. The small-diameter gear 22 having a smaller diameter than the large-diameter gear 21 rolls without sliding on the wire harness support member 12 while meshing with the wire harness support member side teeth 20, and moves the wire harness support member 12 relative to the slider 13 with the slider 13. The movement amount is smaller than the movement amount of the slider 13, but moves in the movement direction of the slider 13 by dragging the wire harness support member 12 with respect to the case 11. Let As a result, the portion from the one end held by the slider 13 to the folded portion 122 as the slider 13 moves without performing the passive movement by pushing and pulling the wire harness supporting member with the wire harness as in the prior art. The wire harness support member 12 is actively moved in response to the deformation of the wire harness 120 that changes the position and length of the wire harness 120 as described above, and from the one end held by the slider 13 of the wire harness 120 to the folded portion 122. The site can be properly supported. As described above, when the wire harness support member 12 is moved, it is not necessary to slide the wire harness so as to press the wire harness support member, so that the wear of the wire harness 120 is prevented and generation of abnormal noise is prevented. Can be prevented.

  Further, according to the routing device 10, the combination of the small diameter gear 22 and the wire harness support member side tooth portion 20 of the wire harness support member 12 allows the small diameter gear 22 to roll on the wire harness support member 12 without slipping. Can be moved.

  Further, according to the routing device 10, the amount of change in the position and length of the part from the one end held by the slider 13 of the wire harness 120 folded in the U shape to the folded portion 122 is the amount of movement of the slider 13. Therefore, the ratio of the diameter of the large gear 21 to the diameter of the small gear 22 is preferably 2: 1.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, a large-diameter gear out of a large-diameter gear and a small-diameter gear is rotated without causing slippage due to friction on the bottom plate of a lower case such as a pulley or a rubber rotating body, instead of a gear having a tooth portion. In this case, it is not necessary to form the lower case side tooth portion.

  In addition, helical gears may be applied to the large-diameter gear and the small-diameter gear instead of the illustrated spur gear. Of course, in that case, the lower case side tooth portion and the wire harness support member side tooth portion are formed in a helical rack shape having a predetermined tip angle.

  Furthermore, the ratio of the diameters of the large-diameter gear and the small-diameter gear is not limited to 2: 1 described above, and the amount of movement of the wire harness support member relative to the slider can be set by appropriately changing the ratio.

It is one Embodiment of the routing apparatus of this invention, Comprising: It is a top view which fractures | ruptures and shows a part of case. It is a principal part perspective view of the routing apparatus of FIG. It is the III-III sectional view taken on the line of FIG. It is a top view explaining operation | movement of the routing apparatus of FIG. It is a top view explaining operation | movement of the routing apparatus of FIG. It is the schematic of the conventional routing device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Routing apparatus 11 Case 12 Wire harness support member 13 Slider 20 Wire harness support member side tooth part (rack)
21 Large-diameter gear (first rotor)
22 Small-diameter gear (second rotor)
120 Wire harness 122 Folded part

Claims (3)

A case in which a wire harness connected to a moving body that is moved back and forth along a predetermined direction is extended in the moving direction of the moving body in a state of being folded back in a U shape;
A slider that holds one end of the wire harness connected to the movable body and is moved together with the movable body;
A wire harness support member that is attached to a portion from one end held by the slider of the wire harness to a folded portion and supported by the case so as to move back and forth along the moving direction of the moving body;
With
The slider engages with the case and rotates with the movement of the slider, and a second rotation having a smaller diameter than the first rotor rotated together with the first rotor. Have a child,
The wiring device according to claim 1, wherein the second rotor engages with the wire harness support member and rolls without sliding on the wire harness support member. The second rotor is a gear;
The routing device according to claim 1, wherein a rack is provided at an engaging portion of the wire harness support member with the second rotor.   The routing device according to claim 1 or 2, wherein a ratio of a diameter of the first rotor to a diameter of the second rotor is 2: 1.

Images