JP7084147B2 - Extra length absorption mechanism and power supply device for movable body - Google Patents

Description

The present invention relates to an extra length absorption mechanism that absorbs the extra length of an electric wire, and a power feeding device for a movable body using the extra length absorption mechanism.

For example, a vehicle is equipped with parts that move with respect to the vehicle body (movable bodies such as a sunroof, a sunshade, a side glass, and a seat). As such a power feeding device for a movable body, there is one using an extra length absorption mechanism that absorbs the extra length of an electric wire (see Patent Document 1).

As shown in FIG. 13, the extra length absorbing mechanism 100 has a case 101, a rotating body 102 rotatably housed in the case 101, and a space on one side in the case 101 as an electric wire accommodating portion 103. The flat electric wire W wound around the rotating body 102 and the space on the other side in the case 101 are used as a spring accommodating portion 104, and one end thereof is hooked on the rotating body 102 to urge the rotating body 102 in the electric wire winding direction. It is equipped with a spiral spring 105.

The case 101 is provided with a rotation support shaft 101a. The rotating body 102 has a partition wall 102a. The inside of the case 101 is partitioned by the electric wire accommodating portion 103 and the spring accommodating portion 104 with the partition wall 102a as a boundary. A rotation guide hole 102b is formed in the center of the partition wall 102a. The rotating body 102 is rotatably supported around the rotation support shaft 101a in the case 101.

In the electric wire accommodating portion 103, the flat electric wire W connected to the sun roof side (or the vehicle body side) is wound around the rotating body 102, and the flat electric wire W wound around the rotating body 102 is pulled out to the sun roof side (or the vehicle body side). The extra-long wire accommodating portion 106 and the twist-preventing electric wire accommodating portion 107 in which the flat electric wire W is wound in the direction opposite to the winding direction of the flat electric wire W in the extra-long electric wire accommodating portion 106 are provided.

When the sun roof moves in the direction in which the flat electric wire W is pulled out (in the direction of the arrow in FIG. 14A), the rotating body 102 rotates against the spring force of the spiral spring 105, and the flat electric wire W that has been wound up is pulled out. .. When the sun roof moves in the direction of winding the flat electric wire W (in the direction of the arrow in FIG. 14B), the rotating body 102 is rotated by the spring force of the spiral spring 105 and the flat electric wire W is wound. In this way, power is constantly supplied to the sunroof while absorbing the extra length of the flat electric wire W according to the movement of the sunroof.

Japanese Unexamined Patent Publication No. 2017-34974

However, in the conventional extra length absorption mechanism 100, since the spiral spring 105 is arranged at an unbalanced position rather than at the center in the axial direction of the rotating body 102, the spring force of the spiral spring 105 tilts the rotating body 102. Acts on. As shown in FIG. 15, when the rotating body 102 is tilted, the rotating body 102 and the case 101 come into contact with each other, which may lead to deterioration of slidability, uneven wear, and the like.

Therefore, the present invention has been made to solve the above-mentioned problems, and provides an extra length absorption mechanism that prevents various problems caused by the inclination of the rotating body, and a power feeding device for a movable body using the extra length absorption mechanism. The purpose is to do.

In the extra length absorption mechanism of the present invention, a case, a rotating body rotatably supported in the case, and a space in the case on one side of the rotating body in the axial direction are used as an electric wire accommodating portion. The flat electric wire wound around the rotating body in the electric wire accommodating portion and the space in the case on the other side in the axial direction of the rotating body are regarded as the spring accommodating portion, and the rotating body is used as the flat electric wire in the spring accommodating portion. It is characterized by having a spring urging in the winding direction of the body of revolution and an inclined holding portion fixed to the case and preventing the axial inclination of the rotating body.

The power feeding device for a movable body of the present invention includes a rail member fixed to a fixed portion, a slider that moves along the rail member, and a movable body supported by the slider, and the fixed portion and the movable body. In the power feeding structure for a movable body that supplies power from one to the other, one end of the flat electric wire is connected to the fixed portion side, the other end of the flat electric wire is connected to the movable body side, and the movement of the movable body causes the said. The extra length absorption mechanism for winding the extra length portion of the flat electric wire is provided, and the extra length absorption mechanism has a case, a rotating body rotatably supported in the case, and a space on one side in the case of the electric wire. The flat electric wire wound around the rotating body in the electric wire accommodating portion and the space on the other side in the case are used as the spring accommodating portion, and the rotating body is used in the spring accommodating portion of the flat electric wire. It is characterized by having a spring urging in the winding direction and an inclined holding portion fixed to the case and restricting the axial inclination of the rotating body.

According to the present invention, the spring force of the spring acts as an eccentric load on the rotating body (the spring force of the spring acts in the direction of inclining the rotating body), but the inclination of the rotating body is prevented by the inclined holding portion. This makes it possible to prevent various problems caused by the inclination of the rotating body.

A first embodiment of the present invention is shown, and is a plan view of a sunroof device (a position where the sunroof is between an open position and a closed position). The first embodiment of this invention is shown, and it is a partial perspective view of a sunroof device. A first embodiment of the present invention is shown, (a) is a schematic side view showing a state in which the sunroof is located in a closed position, (b) is a schematic side view showing a state in which the sunroof is located in a tilt-up position, (c). Is a schematic side view showing a state in which the sunroof is located in the open position. A first embodiment of the present invention is shown, which is a cross-sectional view of a rear slider and a rail member (corresponding to a cross-sectional view taken along the line AA of FIG. 1). The first embodiment of this invention is shown, and it is the figure which looked at the rear slider and the rail member from above. It is a perspective view which shows 1st Embodiment of this invention and shows a front slider and a rail member. A first embodiment of the present invention is shown, which is a cross-sectional view of a front slider and a rail member (corresponding to a cross-sectional view taken along the line BB in FIG. 1). The first embodiment of this invention is shown, and it is a perspective view of the extra length absorption mechanism. 1st Embodiment of this invention is shown, (a) is the top view of the extra length absorption mechanism which removed one split case body, (b) is the perspective view which attached the inclined presser part to the split case body. The first embodiment of this invention is shown, and it is the vertical sectional view of the extra length absorption mechanism. A second embodiment of the present invention is shown, and is a vertical cross-sectional view (a diagram corresponding to FIG. 10) of an extra length absorption mechanism. A third embodiment of the present invention is shown, and is a vertical cross-sectional view (a diagram corresponding to FIG. 10) of an extra length absorption mechanism. A conventional example is shown, and it is a schematic cross-sectional view of an extra length absorption mechanism. A conventional example is shown, (a) is a schematic view showing a state in which a flat electric wire in a twist-preventing electric wire accommodating portion is tightly wound, and (b) is a state in which a flat electric wire in a twist-preventing electric wire accommodating portion is tightly wound. It is a schematic diagram which shows. It is sectional drawing which shows the conventional example and shows the state which the rotating body is tilted in the axis tilting direction.

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

(First Embodiment)
1 to 10 show the first embodiment of the present invention.

As shown in FIG. 3, the ceiling panel 2 of the vehicle body 1 is provided with an opening 3. The opening 3 is opened and closed by the sunroof unit 10.

As shown in FIGS. 1, 3 and the like, the sunroof unit 10 is arranged with a pair of rail members 11 arranged on both sides of the opening 3 in the vehicle width direction and a pair of rail members 11 arranged on the vehicle front side of the opening 3. A front frame 15 connected to the front end of each of the rail members 11, a pair of front sliders 21 moving along the pair of rail members 11, a pair of rear sliders 23, a pair of middle sliders 25, and a pair of middle sliders 25. The sunroof 30, which is a movable body supported by the sunroof 30, a pair of drive belts 40 that exert a moving force on the sunroof 30, an actuator 49, which is a moving source of the drive belt 40, a deflector 50, a flat electric wire W, and a flat electric wire. It is provided with an extra length absorption mechanism 70 that winds up the extra length portion of W.

As shown in FIGS. 1, 2, 4, and the like, each rail member 11 is formed of, for example, an aluminum alloy. A slide guide path 12, a belt guide path 13, and a drainage channel 14 are arranged in each rail member 11 in the width direction thereof. The slide guide path 12, the belt guide path 13, and the drainage channel 14 extend along the longitudinal direction of the rail member 11.

The belt guide roads 13 located on the left and right in the vehicle width direction are located outside the slide guide road 12 in the vehicle width direction. The drainage channels 14 located on the left and right in the vehicle width direction are located outside the belt guide path 13 in the vehicle width direction. The drainage channels 14 located on the left and right in the vehicle width direction are located directly below the gaps between the left and right sides of the sunroof 30 and the ceiling panel 2, and receive water and the like falling from the gaps. The drainage channel 14 has a concave groove shape with the upper surface side open. A drainage cap 18 is attached to the rear end position of the drainage channel 14 of each rail member 11 (shown in FIG. 1). A drain hose (not shown) is connected to the drain cap 18.

The front frame 15 is formed of, for example, a synthetic resin material. The front frame 15 is provided with two belt arrangement paths 16 and a pair of left and right drainage channels 17. Each belt arrangement path 16 is continuous with the belt guide path 13 of each rail member 11. Each drainage channel 17 is continuous with the drainage channel 14 of each rail member 11. A drainage cap (not shown) is connected to the vehicle front end position of each drainage channel 17 of the front frame 15. A drain hose (not shown) is connected to the drain cap.

As shown in FIGS. 1, 2, 3, etc., the pair of front sliders 21 and the pair of rear sliders 23 are slidably arranged on the slide guide paths 12 of the left and right rail members 11 at the same positions in the vehicle front-rear direction FR. Has been done. The pair of middle sliders 25 have a rotation support hole (particularly unmarked) on the front end side of the vehicle and a cam hole 25b elongated in the longitudinal direction. The rotation pin 21a of the front slider 21 is inserted into the rotation support hole on the vehicle front end side of each middle slider 25. A cam pin 23a of the rear slider 23 is inserted into each elongated cam hole 25b of each middle slider 25. The pair of middle sliders 25 move integrally with the pair of front sliders 21 when the FR moves in the front-rear direction of the vehicle, and the pair of rear sliders 23 move integrally with the pair of rear sliders 23 according to the position of the cam pin 23a in the cam hole 25b. It moves in the front-rear direction FR and the vehicle up-down direction TB. By such a slider mechanism, the sunroof 30 closes the closed position for closing the opening 3 as shown in FIG. 3 (a) and the front of the opening 3 as shown in FIG. 3 (b). It is possible to shift to a tilt-up position that opens the rear and an open position that opens the opening 3 as shown in FIG. 3 (c).

As shown in FIG. 1, the sunroof 30 is attached to a pair of middle sliders 25. The sunroof 30 has a laminated panel body (particularly unsigned) in which a transparent glass body and a dimming panel are laminated at least. The dimming panel is in an opaque state when no voltage is applied, and when a voltage is applied, the transparency is changed according to the applied voltage level. Power is supplied to the dimming panel from the vehicle body 1 side. This feeding structure will be described below.

Each drive belt 40 is made of synthetic resin. Each drive belt 40 is long and has a vertically long rectangular cross section. Tooth portions 40a are continuously provided on one surface of each drive belt 40 in the longitudinal direction. Each drive belt 40 is arranged in the belt arrangement path 16 of the front frame 15 and the belt guide path 13 of the pair of rail members 11. Each drive belt 40 is a belt cover 46 in the area of the belt arrangement path 16 of the front frame 15, and a belt surrounding wall (particularly unmarked) in the area of the belt guide path 13 of the rail member 11. It is covered so that it does not easily buckle (deflect and deform). As a result, the pair of drive belts 40 move only on a predetermined trajectory even when the sunroof 30 is pushed from the front to the rear of the vehicle.

One end of the pair of drive belts 40 is fixed to the pair of rear sliders 23 (one drive belt 40 is fixed to one rear slider 23, and the other drive belt 40 is fixed to the other rear slider 23). The other end side is not fixed to any member. In other words, it is a free end.

The actuator 49 (shown in FIG. 1) is fixed to the front frame 15 at a substantially central position in the vehicle width direction. A pair of output gear portions (not shown) of the actuator 49 mesh with the tooth portions 40a of the pair of drive belts 40, respectively. The pair of output gears rotate in opposite directions. As a result, the pair of drive belts 40 move in opposite directions to each other, and the pair of rear sliders 23 move synchronously at the same position in the vehicle front-rear direction FR.

The deflector 50 includes a deflector main body 51 and a pair of swing arms 52 rotatably supported at both left and right ends of the deflector main body 51. The deflector main body 51 is arranged at the front end of the opening 3 of the ceiling panel 2 over the entire area of the opening 3 in the vehicle body width direction. The deflector body 51 is formed in an arc shape on the front end side. As a result, when the opening 3 is opened, a strong wind from the outside does not directly enter the vehicle interior through the opening 3.

The pair of swing arms 52 are rotatably supported by the pair of rail members 11. The deflector main body 51 has a standby position (positions shown in FIGS. 3A and 3B) located below the opening 3 of the ceiling panel 2 and a ceiling panel 2 from the opening 3 due to the movement of the pair of swing arms 52. It is freely variable between the wind avoidance positions (positions in FIG. 3C) protruding upward, and is urged toward the wind avoidance position side by the spring force of the torsion spring 53. The deflector main body 51 is located on the slide locus of the front slider 21, and at the closed position of FIG. 3A and the tilt-up position of FIG. 3B, the pair of swing arms 52 are the front slider 21. It is positioned in the standby position against the spring force of the torsion spring 53 by receiving the pressing force from. In the deflector main body 51, when the front slider 21 is in the open position shown in FIG. 3C, the pair of swing arms 52 are positioned in the wind avoidance position by the spring force of the torsion spring 53 without receiving the pressing force from the front slider 21. ..

Next, the fixing structure of the drive belt 40 and the rear slider 23 will be described. As shown in detail in FIGS. 4 and 5, the rear slider 23 is composed of a resin block 26 and an insulating metal bracket 27 fitted to the resin block 26. The portion of the resin block 26 is arranged in the slide guide path 12. The resin block 26 is provided with one fitting protrusion 26a, and the metal bracket 27 is provided with two fitting protrusions 27a. The two fitting protrusions 27a of the metal bracket 27 are arranged at both sides of the fitting protrusion 26a of the resin block 26 in the vehicle front-rear direction FR. A fitting hole 44 is opened on one end side of the drive belt 40 at a position corresponding to each of the fitting protrusions 26a and 27a. The drive belt 40 and the rear slider 23 are connected by fitting the fitting protrusions 26a and 27a of the resin block 26 and the metal bracket 27 into the fitting holes 44 of the drive belt 40.

Next, a power feeding structure from the vehicle body 1 side to the movable sunroof 30 will be described. As shown in FIGS. 1, 8 and the like, the power feeding structure for the movable body is arranged in the middle of the arrangement path of the flat electric wire W arranged along the rail member 11 and the arrangement path of the flat electric wire W, and the flat electric wire W is arranged. It is provided with an extra length absorption mechanism 70 that absorbs an extra length portion.

The connector C1 on one end side of the flat electric wire W is connected to the connector on the vehicle body 1 side (not shown), and the connector C2 on the other end side is connected to the connector on the sunroof side (not shown). The flat electric wire W is a flexible flat cable. The outer periphery of the insulating layer of the flat electric wire W is further covered with a protective layer (not shown).

As shown in FIG. 3, the extra length absorption mechanism 70 is fixed to the sunroof 30 side. Specifically, it is connected to the rear end of the middle slider 25 via a link member 69. The link member 69 is rotatably supported by both the middle slider 25 and the extra length absorption mechanism 70. As a result, the middle slider 25 is moved up and down by moving the rear end. The extra length absorption mechanism 70 is arranged behind the sunroof 30 in the front-rear direction FR of the vehicle, and is movably provided together with the sunroof 30. The extra length absorption mechanism 70 is supported by the middle slider 25 and moves inside the ceiling panel 2 of the vehicle body 1 as a movement locus.

As shown in detail in FIGS. 8 to 10, the extra length absorption mechanism 70 includes a case 71, a rotating body 80 housed in the case 71, and a spiral spring (spring) which is an urging means arranged in the case 71. ) 89 and four inclined presser portions 90.

The case 71 has a substantially cylindrical shape with both side surfaces closed, and is composed of two divided case bodies 72 and 73 assembled to each other. The split case body 72 is provided with a rotation support shaft 72b that rotatably supports the rotating body 80. On the side peripheral wall and the bottom wall of the split case body 72, support holes 72d and 72e for tilting pressers are formed at four locations at 90-degree rotation intervals, respectively. Further, the split case body 72 is slidably supported by one of the rail members 11. As a result, the extra length absorption mechanism 70 moves on the rail member 11 integrally with the sunroof 30.

The split case body 73 is provided with a rotation support hole 73b that supports the tip of the rotation support shaft 72b.

The extra length electric wire accommodating portion 74A is provided with a first electric wire port 74a from which the flat electric wire W side connected to the sunroof 30 is drawn out. The twist-preventing wire accommodating portion 75 is provided with a second wire port 75a from which the flat wire W side connected to the sunroof 30 is drawn out.

The first electric wire port 74a is provided on the outer peripheral wall of the split case body 72. The second electric wire port 75a is formed by a slit 72c and a rotation support hole 73b of the rotation support shaft 72b of the split case body 73.

The rotating body 80 is formed of an integral member. The rotating body 80 includes a disk-shaped partition wall 81, an electric wire winding peripheral wall 86 extending from the outer peripheral side of the partition wall 81 to one side, and a split case body extending to the other side from the outermost periphery of the partition wall 81. It has a circumferential rotation guide circumference wall 87 slightly smaller than the inner circumference of 72, and a rotation guide hole 88 opened at the center of the partition wall 81 and through which the rotation support shaft 72b penetrates.

The rotating guide circumference wall 85 is guided to the inner peripheral wall of the split case body 72, and the rotation guide hole 88 is guided to the rotation support shaft 72b of the split case body 72, whereby the rotating body 80 is guided to the case 71 (split case bodies 72, 73). ) Is rotatably supported.

The partition wall 81 partitions the inside of the case 71 in the axial direction of the rotation support shaft 72b. The space on one side partitioned by the partition wall 81 is a wire accommodating portion 74. As shown in FIG. 10, the space on the other side partitioned by the partition wall 81 is a spring accommodating portion 76. As shown in FIGS. 9A and 10A, the electric wire accommodating portion 74 includes the extra long electric wire accommodating portion 74A arranged on the outer peripheral side of the electric wire winding peripheral wall 86 and the inner peripheral side of the electric wire winding peripheral wall 86. It is composed of a twist-preventing electric wire accommodating portion 75 arranged in. That is, the extra length wire accommodating portion 74A and the twist prevention wire accommodating portion 75 are at the same position in the axial direction of the rotation support shaft 72b, the extra length electric wire accommodating portion 74A is on the inner peripheral side, and the twist prevention wire accommodating portion 75 is located. They are arranged on the outer peripheral side respectively.

The electric wire winding peripheral wall 86 is formed with a slit 86a that communicates between the twist-preventing electric wire accommodating portion 75 on the inner peripheral side and the extra long electric wire accommodating portion 74A on the outer peripheral side.

The flat electric wire W connected to the vehicle body 1 side is inserted into the slit 86a from the extra length electric wire accommodating portion 74A side. The flat electric wire W on the vehicle body 1 side is pulled out from the first electric wire port 74a to the outside of the case in a state where it can be wound around the electric wire winding peripheral wall 86.

The flat electric wire W inserted and fixed in the slit 86a is pulled out from the slit 86a to the side of the electric wire accommodating portion 75 for preventing twisting. The drawn flat electric wire W is wound in the twist-preventing electric wire accommodating portion 75 in the direction opposite to the winding direction of the extra length electric wire accommodating portion 74A (the winding direction of the flat electric wire W on the vehicle body 1 side), and the tip end side thereof is wound. It is pulled out from the second electric wire port 75a to the outside of the case. The second electric wire port 75a is formed by a slit 72c of the rotation support shaft 72b and a rotation support hole 73b.

The spiral wire length in the twist-preventing wire accommodating portion 75 is such that at least the extra length absorption dimension of the flat wire W can be absorbed by changing the spiral form (swirl with loose winding and spiral with tight winding). It is set.

The spiral spring 89 is arranged in the spring accommodating portion 76. The outer peripheral end 89a (shown in FIG. 8) of the spiral spring 89 is hooked on the rotating body 80, and the inner peripheral end 89b (shown in FIG. 8) is hooked on the rotary support shaft 72b. The spiral spring 89 urges the rotating body 80 and the electric wire winding peripheral wall 86 in the direction of winding the flat electric wire W on the vehicle body 1 side.

Each of the four inclined pressing portions 90 includes a fitting rod portion 91 that fits into the inclined pressing support holes 72d and 72e of the bottom wall and the side wall of the split case body 72, and toward the inside from the tip portion of the fitting rod portion 91. It has a protruding regulating claw portion 92. Each inclined pressing portion 90 is assembled to the divided case body 72 by being fitted into the respective inclined pressing support holes 72d and 72e of the divided case body 72. The lower surface of each regulation claw portion 92 is formed on a vertical surface, and the upper surface thereof is formed on an inclined surface. As shown in FIG. 10, each regulated claw portion 92 enters the extra length wire accommodating portion 74A in the case 71, and the lower surface of each regulated claw portion 92 is arranged close to the outermost peripheral surface of the partition wall 81 of the rotating body 80. There is. When the rotating body 80 tries to tilt in the axial direction, the restricting claw portion 92 comes into contact with the partition wall 81, and the rotating body 80 is prevented from being further tilted in the axial direction.

Next, a schematic assembly procedure of the extra length absorption mechanism 70 will be described. First, the rotating body 80 in which the flat electric wire W and the spiral spring 89 are temporarily set is housed inside from above the split case body 72. Specifically, the inner peripheral end 89b of the spiral spring 89 is hooked on the rotation support shaft 72b, and both ends of the flat electric wire W are pulled out from a predetermined portion of the split case body 72 and housed in the split case body 72.

Next, the restricting claws 92 of the four inclined pressing portions 90 are arranged close to the outermost surface of the partition wall 81 in the case falling direction of the rotating body 80. As a result, the rotating body 80 is housed in the split case body 72 in a positioned state. Finally, the split case body 73 is assembled to the split case body 72 while pulling out the inner peripheral end side of the flat electric wire W from the rotation support hole 73b of the split case body 73 to complete the process.

Further, in the assembled extra length absorbing mechanism 70, even if the split case body 73 is removed from the split case body 72, the rotating body 80 is temporarily held by the regulation claw portion 92 of the inclined pressing portion 90. The spring force of the spiral spring 89 can prevent the rotating body 80 from jumping out of the split case body 72.

In the above configuration, when the actuator 49 is driven, the pair of drive belts 40 move so as to be at the same position in the vehicle front-rear direction FR on one end side thereof, and the sunroof 30 is transferred to the positions of three patterns as shown in FIG. Can be done.

In the process of moving the sunroof 30 in the sliding direction, the extra length portion of the flat electric wire W is increased. When the sunroof 30 is moved (for example, from the closed position of the sunroof 30 in FIG. 3A to the open position in FIG. 3C). The rotating body 80 is rotated by the spring force of the spiral spring 89, and the extra length portion of the flat electric wire W is wound around the winding portion 82. In the process of moving the sunroof 30 in the sliding direction, when the sunroof 30 is moved to reduce the extra length portion of the flat electric wire W (for example, from the open position of the sunroof 30 in FIG. 3C to the closed position in FIG. 3A). The rotating body 80 rotates against the spring force of the spiral spring 89, and the extra length portion of the flat electric wire W is pulled out from the winding portion 82. As a result, the extra length of the flat electric wire W can be reliably absorbed while maintaining the linear arrangement state of the portion other than the extra length of the flat electric wire W.

In the extra length absorption mechanism 70 in the process of sliding the sunroof 30, when the rotating body 80 rotates in the direction in which the flat electric wire W on the vehicle body 1 side is wound, the flat electric wire W of the electric wire accommodating portion 75 for preventing twisting is generated. The winding form is changed in the direction of reducing the number of windings. In the rotation of the rotating body 80 in the direction in which the flat electric wire W on the vehicle body 1 side is pulled out, the flat electric wire W in the twist-preventing electric wire accommodating portion 75 changes the winding form in the direction of increasing the number of windings. In this way, the flat electric wire W of the twist-preventing electric wire accommodating portion 75 only changes its winding form, and twisting (rotation) does not occur at the portion of the flat electric wire W drawn out from the twist-preventing electric wire accommodating portion 75.

In this way, in the transition of the sunroof 30 in three patterns, the power supply on the vehicle body 1 side is always supplied to the sunroof 30 via the flat electric wire W.

As described above, in the extra length absorption mechanism 70, the space in the case 71, the rotating body 80 rotatably supported in the case 71, and the case 71 on one side in the axial direction of the rotating body 80 is an electric wire. The flat electric wire W, which is the accommodating portion 74 and is wound around the rotating body 80 by the electric wire accommodating portion 74, and the space in the case 71, which is the other side in the axial direction of the rotating body 80, are used as the spring accommodating portion 76. 76 includes a spring 89 that urges the rotating body 80 in the winding direction of the flat electric wire W, and an inclined holding portion 90 that is fixed to the case 71 and regulates the axial inclination of the rotating body 80.

Therefore, the spring force of the spiral spring 89 acts as an eccentric load on the rotating body 80 (the spring force of the spiral spring 89 acts in the direction of inclining the rotating body 80), but the inclination of the rotating body 80 is caused by the inclined holding portion 90. Be blocked. This makes it possible to prevent various problems (decrease in durability, decrease in reliability, etc.) due to the inclination of the rotating body 80.

The electric wire accommodating portion 74 includes an extra length electric wire accommodating portion 74A for winding the flat electric wire W from the outside around the rotating body 80 and drawing out the flat electric wire W wound around the rotating body 80 to the outside, and an extra long electric wire accommodating portion 74A. It has a twist-preventing electric wire accommodating portion 75 around which the flat electric wire W is wound in a direction opposite to the winding direction of the flat electric wire W. As described above, the twist-preventing wire accommodating portion 75 is located at the location of the flat electric wire W drawn out from the twist-preventing electric wire accommodating portion 75 by simply changing the winding form of the flat electric wire W from the extra length electric wire accommodating portion 74A. Since twisting (rotation) does not occur, the flat electric wire W derived from the extra length absorption mechanism 70 can be easily handled and handled.

The extra length wire accommodating portion 74A and the twist prevention wire accommodating portion 75 are located at the same position in the axial direction of the rotating body 80. Each is arranged.

Therefore, as compared with the case where the extra length wire accommodating portion 74A and the twist prevention wire accommodating portion 75 are arranged at the axially shifted positions of the rotating body 80, the dimension in the width direction of the extra length absorbing mechanism 70 (rotating body 80). (Dimensions in the axial direction) can be made compact.

(Second Embodiment)
FIG. 11 shows a second embodiment of the present invention. This second embodiment differs from the first embodiment only in that an overhanging portion 95 overhanging the twist-preventing electric wire accommodating portion 75 is provided on the inner surface side of the split case body 73. .. The overhanging portion 95 narrows the clearance between the flat electric wire W and the split case body 73.

Since the other configurations are the same as those in the first embodiment, duplicate description will be omitted.

This second embodiment has the following effects. That is, the flat electric wire W may be loosely wound around the twist-preventing electric wire accommodating portion 75, and the flat electric wire W tends to be displaced in the width direction due to vibration or the like. Here, when the split case body 73 does not have an overhanging portion, as shown in the virtual line of FIG. 13, the flat electric wire W can move significantly in the width direction, so that the end of the flat electric wire W is strong against the split case body 73. Contact and abnormal noise is generated. However, in the second embodiment, since the flat electric wire W can hardly move in the width direction by the overhanging portion 95, the end of the flat electric wire W only weakly contacts the split case body 73, and the generation of abnormal noise is suppressed.

In the second embodiment, the overhanging portion 95 is integrally formed with the split case body 73 (by the same resin molding), but may be formed by another member.

(Third Embodiment)
FIG. 12 shows a third embodiment of the present invention. The third embodiment differs from the first embodiment only in that the sound absorbing member 96 is provided on the inner surface of the split case body 73 by sticking. The sound absorbing member 96 narrows the clearance between the flat electric wire W and the split case body 73, and the end of the flat electric wire W comes into contact with the sound absorbing member 96.

Since the other configurations are the same as those in the first embodiment, duplicate description will be omitted.

In this third embodiment, as in the second embodiment, the end of the flat electric wire W makes only weak contact with the split case body 73. Moreover, since the end of the flat electric wire W comes into contact with the sound absorbing member 96, the generation of abnormal noise can be suppressed more reliably.

In the third embodiment, it can be considered that the overhanging portion is formed of the sound absorbing material.

(Application examples of the present invention, etc.)
In the above embodiment, the case where the sunroof 30 has a dimming panel and power is supplied to the dimming panel has been described. However, in order to prevent the sunroof 30 from being pinched, a touch sensor is provided on the sunroof 30 and power is supplied to the touch sensor. The present invention can also be applied to such cases. When the touch sensor detects an object or the like, it controls to reverse the drive motor of the sunroof 30. As the power supply target on the sunroof 30 side, lighting (LED lighting) mounted on the sunroof 30 can be considered.

In the above embodiment, the extra length absorption mechanism 70 is attached to the sunroof 30 side which is a movable body, but may be attached to the vehicle body 1 side which is a fixed body.

In the above embodiment, the movable body is the sunroof 30, and the power feeding structure to the sunroof 30 has been described. However, the movable body can be applied to a moving body moving with respect to the vehicle body 1, for example, a power feeding structure to a sunshade, a side glass, a seat, or the like. It can also be applied to a power supply structure for a movable body other than a vehicle. For example, when a solar panel is used instead of the movable glass, it can be used to supply power from the solar panel (movable body) to the vehicle body 1 side.

W flat electric wire 1 Body (fixed part)
11 Rail member 21 Front slider (slider)
23 Rear slider (slider)
25 Middle slider (slider)
30 Sunroof (movable body)
70 Extra length absorption mechanism 71 Case 72b Rotation support shaft 74 Wire accommodating part 74A Extra length electric wire accommodating part 75 Twist prevention wire accommodating part 80 Rotating body 81 Partition 88 Rotating guide hole 89 Swirl spring 90 Inclined presser part 95 Overhanging part 96 Sound absorbing member

Claims (7)

With the case
A rotating body rotatably supported in the case and
A space in the case, which is one side in the axial direction of the rotating body, is used as an electric wire accommodating portion, and a flat electric wire wound around the rotating body in the electric wire accommodating portion and a flat electric wire.
A space in the case on the other side in the axial direction of the rotating body is a spring accommodating portion, and the spring accommodating portion urges the rotating body in the winding direction of the flat electric wire.
It is fixed to the case and is provided with an inclined holding portion that regulates the axial inclination of the rotating body .
The rotating body has a partition wall that partitions the inside of the case into the electric wire accommodating portion and the spring accommodating portion.
The inclined pressing portion has a restricting claw portion projecting in the direction of the center of the partition wall, and the lower surface of the restricting claw portion is arranged in close proximity to the outermost peripheral surface of the partition wall. Absorption mechanism. The extra length absorption mechanism according to claim 1.
The electric wire accommodating portion includes an extra-long wire accommodating portion for winding the flat electric wire from the outside around the rotating body and pulling out the flat electric wire wound around the rotating body to the outside, and the extra-long wire accommodating portion. An extra length absorption mechanism comprising a twist-preventing electric wire accommodating portion around which the flat electric wire is wound in a direction opposite to the winding direction of the flat electric wire. The extra length absorption mechanism according to claim 1 or 2 .
An extra length absorption mechanism characterized in that a rotation guide hole is provided in the partition wall, and the rotation guide hole is inserted into a rotation support shaft provided in the case. The extra length absorption mechanism according to claim 2, wherein the extra length absorption mechanism is used.
The extra-long wire accommodating portion and the twist-preventing electric wire accommodating portion are located at the same position in the axial direction of the rotating body, with the extra-long wire accommodating portion on the outer peripheral side and the twist-preventing electric wire accommodating portion on the inner peripheral side. Extra length absorption mechanism characterized by being arranged respectively. The extra length absorption mechanism according to claim 2 , wherein the extra length absorption mechanism is used.
The extra length absorption mechanism is characterized in that the case is provided with an overhanging portion overhanging the twist -preventing electric wire accommodating portion. The extra length absorption mechanism according to claim 2 , wherein the extra length absorption mechanism is used.
The extra length absorption mechanism is characterized in that the case is provided with a sound absorbing member on the surface on the side of the electric wire accommodating portion for preventing twisting . A movable body provided with a rail member fixed to the fixed portion, a slider moving along the rail member, and a movable body supported by the slider, and feeding power from one of the fixed portion and the movable body to the other. In the body power supply device
One end of the flat electric wire is connected to the fixed portion side, the other end of the flat electric wire is connected to the movable body side, and the extra length absorbing mechanism for winding the extra length portion of the flat electric wire due to the movement of the movable body is provided.
The extra length absorption mechanism is a case and
A rotating body rotatably supported in the case and
A space in the case, which is one side in the axial direction of the rotating body, is used as an electric wire accommodating portion, and a flat electric wire wound around the rotating body in the electric wire accommodating portion and a flat electric wire.
A space in the case on the other side in the axial direction of the rotating body is a spring accommodating portion, and the spring accommodating portion urges the rotating body in the winding direction of the flat electric wire.
It is fixed to the case and is provided with an inclined holding portion that regulates the axial inclination of the rotating body .
The rotating body has a partition wall that partitions the inside of the case into the electric wire accommodating portion and the spring accommodating portion.
The inclined pressing portion has a restricting claw portion projecting toward the center of the partition wall, and the lower surface of the restricting claw portion is arranged in close proximity to the outermost peripheral surface of the partition wall. Power supply device.

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