Power supply rail and vehicle seat

Abstract

Provided is a power supply rail capable of suppressing generation of abnormal sound due to contact between a guide belt and a housing. The power supply rail (20) includes: a housing (21) having a cylindrical shape; a sliding part (22) mounted so as to be movable in a predetermined direction with respect to the housing (21); a flexible flat cable (23) housed in the housing (21) and extending in a predetermined direction; a movable terminal part attached to the sliding part (22); a fixed terminal section attached to the housing (21); a guide belt (26) for guiding the flexible flat cable (23); and a holding member (27) that holds the guide belt (26). The holding member (27) has a locking part (29) for locking at least one end of the guide belt (26) in the width direction, and the guide belt (26) is held by the locking part (29).

Description

Technical Field

[0001] The present invention relates to a power supply rail and a vehicle seat, and in particular to a power supply rail for supplying electric power to a vehicle seat provided in a vehicle such as an automobile, and a vehicle seat including the power supply rail. Background Art

[0002] Conventionally, there is known a power supply rail for supplying electric power to a sliding seat from a power supply on the vehicle body side of a car, etc. For example, the power supply rail described in Patent Document 1 includes: a flexible flat cable housed in a long cylindrical housing; a fixed terminal connected to wiring of a power supply circuit of the vehicle; and a movable terminal connected to wiring of the sliding seat, and the power supply rail supplies electric power from the power supply circuit of the vehicle to the sliding seat via the flexible flat cable.

[0003] The power supply track described in Patent Document 1 includes a guide plate (guide belt) that presses and guides the flexible flat cable in accordance with the extension and contraction movement of the flexible flat cable. In addition, in order to prevent the flexible flat cable contained in the housing from generating abnormal sounds due to shaking, a protrusion having a triangular cross-section that contacts the flexible flat cable is provided on the inner surface of the housing.

[0004] Prior art literature

[0005] Patent Literature

[0006] Patent Document 1: Japanese Patent Application Publication No. 2020-032862 Summary of the invention

[0007] Problems to be solved by the invention

[0008] However, in the power supply rail described in Patent Document 1, the guide plate is deformed by gravity, etc., especially in the curved portion of the guide plate. When the vehicle body vibrates due to running of the vehicle, the guide plate contacts the inner surface of the casing, which may generate abnormal sound.

[0009] The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a power supply rail and a vehicle seat in which the generation of abnormal sound due to contact between a guide belt and a housing can be suppressed.

[0010] Technical means of solving problems

[0011] The above-mentioned problem is solved by the following means. According to the present invention, the power supply rail comprises: a shell extending in a predetermined direction and having a cylindrical shape; a sliding portion installed in a manner that it can move relative to the shell along the predetermined direction; a flexible flat cable accommodated in the shell and extending along the predetermined direction; a movable terminal portion provided at one end of the flexible flat cable and installed at the sliding portion; a fixed terminal portion provided at the other end of the flexible flat cable and installed at the shell; a guide belt accommodated in the shell, extending along the flexible flat cable in the predetermined direction, and guiding the flexible flat cable for guiding; and a holding member for holding the guide belt, the flexible flat cable having: a top end portion connected to the movable terminal portion; and a base end portion connected to the fixed terminal portion, the guide belt having: a movable end portion mounted on the sliding portion together with the top end portion; a fixed end portion fixed to the housing together with the base end portion; and a bending portion disposed between the movable end portion and the fixed end portion and bent, the holding member being disposed between the fixed end portion and the bending portion, having a locking portion for locking at least one end portion of the guide belt in a width direction, and the guide belt is held by the locking portion.

[0012] According to the above structure, the guide belt is held by the holding member provided between the fixed end portion and the bent portion. Therefore, deformation of the guide belt due to gravity or the like is unlikely to occur, and contact between the guide belt and the housing can be suppressed.

[0013] Specifically, the guide belt is held by the locking portion that locks the upper end portion or the lower end portion of the guide belt, so that the posture of the guide belt can be stabilized and the guide belt can be prevented from contacting the inner surface of the housing.

[0014] Therefore, it is possible to suppress the generation of abnormal sound due to the contact between the guide belt and the housing.

[0015] At this time, the base portion may extend along the guide band in the prescribed direction, and the locking portion may extend from at least one end portion of the base portion in the width direction toward the thickness direction at a central portion in the extension direction of the base portion, and overlap with the guide band in the width direction.

[0016] According to the above configuration, the guide tape is held by the locking portions overlapping in the width direction of the guide tape, so that the guide tape can be prevented from coming into contact with the inner surface of the housing.

[0017] At this time, the base portion may extend along the guide band in the prescribed direction, and the locking portion may extend from at least one end portion of the base portion in the width direction toward the thickness direction at a central portion in the extension direction of the base portion, and overlap with the guide band in the width direction.

[0018] According to the above structure, the locking portion is provided at the center portion of the holding member in the longitudinal direction to hold the upper end of the guide belt, so that the posture of the guide belt can be further stabilized and the contact between the guide belt and the inner surface of the housing can be further suppressed.

[0019] At this time, the base portion may extend along the guide band in the prescribed direction, and at least one side end portion of the locking portion in the extension direction of the base portion may extend from at least one end portion of the base portion in the width direction toward the thickness direction and overlap with the guide band in the width direction.

[0020] With the above structure, the locking portion is provided at the side end portion in the extending direction of the holding member to hold the upper end or the lower end of the guide belt, thereby making the posture of the guide belt more stable and further preventing the guide belt from contacting the inner surface of the housing.

[0021] At this time, the base portion may extend along the guide band in the prescribed direction, and the locking portion may extend from at least one end of the base portion in the extension direction to the thickness direction and overlap with the guide band in the width direction at both ends of the base portion.

[0022] With the above structure, the locking parts are arranged at both end portions of the extension direction in the length direction of the retaining member to retain the upper end or the lower end of the guide belt, thereby making the posture of the guide belt more stable and further preventing the guide belt from contacting the inner surface of the shell.

[0023] At this time, the base portion may extend along the guide belt in the prescribed direction and be arranged at a position facing the surface of the guide belt that is opposite to the surface on the flexible flat cable side, and the locking portion may extend from both end portions of the base portion in the width direction toward the thickness direction and overlap with the guide belt in the width direction.

[0024] According to the above structure, the guide belt is provided between the holding member and the flexible flat cable, and the holding member is mounted to cover the guide belt. Therefore, the posture of the guide belt can be further stabilized, and the contact between the guide belt and the inner surface of the housing can be further suppressed.

[0025] At this time, it is also possible that: the base portion extends along the guide belt in the prescribed direction and is arranged at a position facing the surface of the guide belt that is opposite to the surface on the flexible flat cable side, and the locking portion has: a bulging portion, a central portion in the extension direction of the base portion extending from at least one end portion of the base portion in the width direction to the thickness direction and overlapping with the guide belt in the width direction; and claw portions, both end portions in the extension direction of the base portion extending from at least one end portion of the base portion in the width direction to the thickness direction and overlapping with the guide belt in the width direction, and a length of the bulging portion in the thickness direction is longer than a length of the claw portion.

[0026] According to the above structure, the leader belt can be locked by the claw portion, and the bulged portion can suppress the flexible flat cable from contacting the leader belt.

[0027] In addition, the problem is solved in the following manner. According to a vehicle seat including the power supply rail of the present invention, it includes: a seat body having a seat cushion and a seat back; a slide rail extending in the specified direction and supporting the seat body to be able to move in the specified direction; and a power supply rail, which is arranged on the side of the slide rail along the direction in which the slide rail extends.

[0028] With this structure, it is possible to suppress the generation of abnormal sound due to the contact between the guide belt and the housing.

[0029] Effects of the Invention

[0030] According to the present invention, it is possible to suppress the generation of abnormal sound due to the contact between the guide belt and the housing.

[0031] In addition, the posture of the guide belt can be further stabilized, and the contact between the guide belt and the inner surface of the housing can be further suppressed.

[0032] In addition, the leader tape can be locked by the claw portion, and the bulged portion can suppress the flexible flat cable from contacting the leader tape. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] [ Figure 1 ] is a side view of the vehicle seat of the present embodiment.

[0034] [ Figure 2 ] is a three-dimensional view of the slide rail and is a view showing a portion of the upper rail.

[0035] [ Figure 3 ] is a three-dimensional diagram of the slide rail and is a diagram showing a portion of the lower rail and the upper rail.

[0036] [ Figure 4 ] is a three-dimensional diagram of the power supply track.

[0037] [ Figure 5 ] is a side view of the power supply rail.

[0038] [ Fig. 6A ] is a diagram showing the interior of the housing of the power supply rail as viewed from above and is a diagram showing a state where the sliding portion is in a front position.

[0039] [ Figure 6B ] is a diagram showing the interior of the housing of the power supply rail as viewed from above, and is a diagram showing a state where the sliding portion is in an intermediate position.

[0040] [ Figure 6C ] is a diagram showing the interior of the housing of the power supply rail as viewed from above and is a diagram showing a state in which the sliding portion is in a rear position.

[0041] [ Figure 7 ]yes Figure 6B VII-VII section view.

[0042] [ Figure 8 ] is a three-dimensional view of the retaining member and is a view showing the state of being installed on the guide belt.

[0043] [ Fig. 9 ]yes Figure 8 IX-IX section view.

[0044] [ Fig. 10A ]yes Figure 8 XX cross-section diagram.

[0045] [ Fig. 10B ] is a diagram showing a modified example of the retaining member.

[0046] [ Fig.11A ] is a diagram of a power supply track of variant example 1 and shows a guide rail and a flexible flat cable.

[0047] [ Fig. 11B ] is a diagram of a power supply track of variant example 2 and shows a guide rail and a flexible flat cable.

[0048] [ Fig. 11C ] is a diagram of a power supply track of variant example 3 and shows a guide rail and a flexible flat cable.

[0049] [ Fig.12 ] is a side view of a vehicle seat of variant example 4.

[0050] [ Fig.13 ] is a side view of a vehicle seat of variant example 5.

[0051] [ Fig.14 ] is a view of the interior of the shell of the power supply rail of Modification Example 5 viewed from above. DETAILED DESCRIPTION

[0052] Below, refer to Figure 1 to Figure 10B Embodiments of the present invention will be described.

[0053] In the following description, the "front-rear direction" refers to the front-rear direction of the vehicle seat, which is the direction that coincides with the traveling direction of the vehicle when the vehicle is traveling. In addition, the "seat width direction" refers to the width direction of the vehicle seat, which is the direction that coincides with the left-right direction as viewed by the occupant sitting on the vehicle seat. In addition, the "up-down direction" refers to the up-down direction of the vehicle seat, which is the direction that coincides with the vertical direction when the vehicle is traveling on a horizontal plane.

[0054] <Overall structure of the seat>

[0055] like Figure 1 As shown, the vehicle seat S is mainly composed of the following components: a seat body, including a seat cushion 1, a seat back 2, and a seat support member 3; a track device 4, installed on the floor F of the vehicle body and supported to be movable in a specified direction, specifically, the front and rear direction; a control device 5 (electronic control unit (ECU)), which controls the track device 4; and a switch 6, which is used to move the track device 4.

[0056] like Figure 1 As shown, the seat cushion 1 is a seat portion that supports an occupant from below, and is composed of a cushion material 1 a placed on a cushion frame as a framework and covered with a surface material 1 b.

[0057] The seat back 2 is a seat back that supports the back of an occupant from behind, and is configured by placing a cushion material 2a on a back frame as a framework and covering it with a surface material 2b.

[0058] The seat support member 3 is a member that supports the seat cushion 1 and the seat back 2, and is mounted on the rail device 4. The control device 5 is an electronic control device, and is connected to the power source P mounted on the vehicle body, the rail device 4, and the switch 6. The switch 6 is provided on the side of the seat support member 3, and has a button corresponding to forward movement and a button corresponding to reverse movement.

[0059] An occupant can sit on the seat cushion 1 and operate the switch 6 to operate the rail device 4 to move the vehicle seat S forward and backward relative to the floor F.

[0060] like Figure 1 As shown, the track device 4 includes: a slide rail 10 extending in a predetermined direction, that is, the front-rear direction; and a power supply rail 20, which is arranged on the side of the slide rail 10 and extends in the front-rear direction. Figure 1 Although not shown in the figure, a pair of slide rails 10 are provided on the left and right sides.

[0061] like Figure 2 , Figure 3 As shown, the slide rail 10 is a rail member that supports the seat body so as to be movable forward and backward relative to the floor F, and includes a lower rail 11 fixed to the floor F and an upper rail 12 fixed to the seat support member 3 .

[0062] like Figure 4 As shown, the power supply rail 20 is a power supply device for electrically connecting a power source P provided on the vehicle body to the vehicle seat S and supplying power from the power source P to the slide rail 10 .

[0063] like Figure 1 As shown, the rail device 4 is arranged in a rail groove formed in the floor F. The upper surface of the rail device 4 is arranged on the same plane as the upper surface of the floor F. By arranging the rail device 4 in the rail groove, the rail device 4 can be suppressed from protruding from the floor F.

[0064] In this embodiment, if Figure 4 As shown, the power supply rail 20 is arranged on the left side of the left slide rail 10 in the seat width direction. However, it is not limited to this, and the power supply rail 20 can also be arranged on the right side of the left slide rail 10, and can also be arranged on the side of the right slide rail 10.

[0065] <Slide rail>

[0066] The slide rail 10 is a rail member that supports the seat body so that it can move in a predetermined direction, specifically, in the front-rear direction. Figure 2 , Figure 3 As shown, the slide rail 10 includes a lower rail 11 extending in the front-rear direction and an upper rail 12 mounted to the lower rail 11 so as to be movable in the front-rear direction and extending in the front-rear direction.

[0067] The lower rail 11 has: a rail bottom wall fixed to the floor F; left and right rail outer walls extending upward from the left and right edges of the rail bottom wall; a rail top wall extending from the upper ends of the left and right rail outer walls toward each other; and left and right rail inner walls 11a extending downward from the ends of the rail top wall. Figure 3 , only the rail inner wall 11 a in the lower rail 11 is shown.

[0068] The upper rail 12 is fixed to the lower portion of the seat support member 3 and is provided so as to be movable forward and backward relative to the lower rail 11. Both side walls of the upper rail 12 are provided at positions facing the rail inner wall 11a. The upper rail 12 is formed shorter than the lower rail 11 in the forward and backward direction.

[0069] like Figure 2As shown, the upper rail 12 includes an electric motor 13, a drive shaft 14 connected to the output shaft of the electric motor 13, a gear box 15 connected to the drive shaft 14, and a screw member 16 accommodated in the gear box 15. The upper rail 12 slides in the front-rear direction relative to the lower rail 11 by driving the screw member 16 by the electric motor 13.

[0070] In addition, the upper rail 12 can be smoothly slidably moved relative to the lower rail 11 by being attached to the lower rail 11 via wheels, balls, roller bearings, etc., for example.

[0071] The electric motor 13 is a driving unit for sliding the upper rail 12, and is supplied with power from the power supply rail 20 via a connector (not shown). The electric motor 13 is formed into a cylindrical shape extending in the front-rear direction, and is mounted on the upper surface 12a of the upper rail 12 via a motor bracket 13a.

[0072] The drive shaft 14 is a rotating shaft for driving the screw member 16 and is connected to the output shaft of the electric motor 13. The drive shaft 14 extends in the front-rear direction and is rotatably supported by the gear box 15. The output shaft of the electric motor 13 and the drive shaft 14 are arranged on the same straight line.

[0073] The gear box 15 is formed in a rectangular box shape that is long in the front-rear direction and accommodates the screw member 16. The gear box 15 is mounted on the upper surface 12a of the upper rail 12 via a gear bracket 15a in front of the electric motor 13. The gear box 15 has an opening 15b, which is an opening portion for exposing the screw member 16 to the side.

[0074] like Figure 3 As shown, the screw member 16 includes a first screw member 17 provided to be movable in the front-rear direction relative to the lower rail 11 and a second screw member 18. The first screw member 17 and the second screw member 18 extend forward and backward, respectively, and are arranged in parallel with each other on the gear case 15.

[0075] The first screw member 17 is arranged along the right side surface of the gear case 15, and the second screw member 18 is arranged along the left side surface of the gear case 15. The drive shaft 14 is arranged below the middle portion between the first screw member 17 and the second screw member 18.

[0076] The screw member 16 has a pair of bearings 16A provided at both ends of the first screw member 17 and the second screw member 18 in the front-rear direction, and axially supports the drive shaft 14, the first screw member 17, and the second screw member 18. Specifically, the bearing 16A has a first bearing 16a that rotatably supports the front and rear ends of the first screw member 17, a second bearing 16b that rotatably supports the front and rear ends of the second screw member 18, and a third bearing 16c that rotatably supports the drive shaft 14.

[0077] When the drive shaft 14 rotates, the first screw member 17 and the second screw member 18 rotate in the same direction via a drive gear (not shown) meshing with the drive shaft 14 .

[0078] like Figure 3 As shown, the lower rail 11 is provided with a screw engaging portion 19 that engages with the screw member 16. Specifically, a first engaging portion 19a is formed on the rail inner wall 11a on the right side adjacent to the first screw member 17 of the upper rail 12. In addition, a second engaging portion 19b is formed on the rail inner wall 11a on the left side adjacent to the second screw member 18 of the upper rail 12.

[0079] The first engaging portion 19a and the second engaging portion 19b are holes arranged in the front-to-back direction on the rail inner wall 11a. Therefore, when the screw member 16 rotates due to the rotation of the drive shaft 14, the first screw member 17 meshes with the hole of the first engaging portion 19a, and the second screw member 18 meshes with the hole of the second engaging portion 19b, thereby the upper rail 12 moves in the front-to-back direction relative to the lower rail 11.

[0080] <Power supply rail>

[0081] The power supply rail 20 is a power supply device that supplies power to the slide rail 10 from the power source P. Figure 1 , Figure 4 As shown, the power supply rail 20 is arranged on the side of the slide rail 10 along the extending direction of the slide rail 10 .

[0082] The power supply rail 20 includes: a shell 21 extending in a specified direction, i.e., a front-to-rear direction; a sliding portion 22 sliding along with the movement of the upper rail 12; a flexible flat cable 23 for supplying power to the slide rail 10 from a power source P; a movable terminal portion 24 for supplying power to the slide rail 10 from the flexible flat cable 23; a fixed terminal portion 25 for supplying power to the flexible flat cable 23 from the power source P; a guide belt 26 for guiding the flexible flat cable 23; and a retaining member 27 for retaining the guide belt 26.

[0083] like Figure 4 , Figure 7As shown, the housing 21 is made of metal such as aluminum and is a cylindrical member extending in a predetermined direction, that is, in the front-rear direction. The housing 21 is disposed adjacent to the slide rail 10 in a rail groove formed in the floor F.

[0084] The shell 21 comprises: a shell bottom wall 21a, fixed in the rail groove of the floor F; a right wall portion 21b and a left wall portion 21c, extending upward from the left and right end portions of the shell bottom wall 21a and approximately perpendicularly relative to the shell bottom wall 21a; an upper wall portion 21d, extending to the right from the upper end of the left wall portion 21c approximately parallel to the shell bottom wall 21a; and a middle wall portion 21e, extending downward from the top end of the upper wall portion 21d approximately parallel to the left wall portion 21c, and connected to the shell bottom wall 21a.

[0085] like Figure 4 , Figure 7 As shown in FIG. 2 , a slit 21f extending in the front-rear direction is formed between the left wall portion 21c and the middle wall portion 21e in the housing 21. The sliding portion 22 is slidably movable relative to the housing 21 via the slit 21f.

[0086] The opening of the slit 21f is provided with a flange 21g. Specifically, the flange 21g extends obliquely downward from the right wall 21b and the middle wall 21e toward the inside of the slit 21f. The flange 21g makes it difficult for foreign matter to enter the housing 21 through the slit 21f, thereby preventing the flexible flat cable 23 from being broken.

[0087] like Figure 5 As shown in FIG. 1 , a fixed terminal portion 25 is connected to the front end portion 21h of the housing 21. A cover 21j is installed at the front end portion 21h and the rear end portion 21i of the housing 21. That is, the space surrounded by the housing bottom wall 21a, the left wall portion 21c, the upper wall portion 21d, and the middle wall portion 21e of the housing 21 is closed by the cover 21j.

[0088] In addition, an opening 21k for allowing the sliding portion 22 to penetrate in the left-right direction is formed in the middle portion of the middle wall portion 21e in the vertical direction. The opening 21k is formed in the middle wall portion 21e so as to extend in the front-rear direction.

[0089] like Figure 4 , Figure 7 As shown, the sliding part 22 is installed in a manner that it can slide in the front-rear direction relative to the housing 21. The sliding part 22 includes: a main body 22a, which is arranged in the slit 21f; a protruding part 22b, which extends upward from the main body 22a and protrudes upward further than the upper wall 21d; a connector mounting part 22c, which is provided at the upper end of the protruding part 22b; a connecting part 22d, which extends to the left from the main body 22a through the opening 21k; and a flat cable mounting part 22e, on which the flexible flat cable 23 is mounted.

[0090] like Figure 4 As shown, the connector mounting portion 22c is arranged above the slide rail 10 (specifically, the upper surface of the lower rail 11) and the upper wall portion 21d of the housing 21. When the seat support member 3 moves in the front-rear direction via the slide rail 10, a part of the seat support member 3 abuts against the connector mounting portion 22c, and the sliding portion 22 moves together with the seat support member 3 in the front-rear direction.

[0091] Therefore, when the seat support member 3 moves in the front-rear direction via the slide rail 10 , the movable terminal portion 24 provided on the connector mounting portion 22 c also moves in the front-rear direction, so that power can always be supplied to the upper rail 12 of the slide rail 10 at a position near the upper rail 12 .

[0092] The flexible flat cable 23 is a transmission line group having flexibility in which a plurality of metal plates (for example, copper plates) including conductors are arranged in the width direction and the outer surfaces of the metal plates are coated with a heat-resistant insulating tape.

[0093] like Figures 4 to 6A As shown in FIG. 1 , the flexible flat cable 23 is accommodated in the housing 21 and extends in the front-to-back direction. Specifically, the flexible flat cable 23 extends in the up-down direction along the protrusion 22b, is bent and mounted on the flat cable mounting portion 22e, and extends toward the rear in the housing 21. Furthermore, the flexible flat cable 23 is bent and folded back in the housing 21, extends toward the front, and is connected to the fixed terminal portion 25 at the front end portion 21h of the housing 21.

[0094] like Fig. 6A As shown, the flexible flat cable 23 is a long ribbon-shaped cable extending substantially in the front-to-back direction. The flexible flat cable 23 is arranged in the housing 21 in such a manner that the thickness direction of the flexible flat cable 23 is consistent with the left-right direction of the housing 21, the width direction is consistent with the up-down direction of the housing 21, and the length direction is consistent with the front-to-back direction of the housing 21.

[0095] The flexible flat cable 23 includes a top end portion 23a connected to the movable terminal portion 24, a base end portion 23b connected to the fixed terminal portion 25, and a middle portion 23c provided between the top end portion 23a and the base end portion 23b and bent. The middle portion 23c is a portion of the middle portion of the cable between the top end portion 23a and the base end portion 23b of the flexible flat cable 23, and is a portion bent into a substantially U-shape in a plan view as the sliding portion 22 moves.

[0096] like Figures 4 to 6AAs shown, the movable terminal portion 24 is provided at the top end portion 23a of the flexible flat cable 23 and mounted on the connector mounting portion 22c of the sliding portion 22. The movable terminal portion 24 includes: a movable cable 24a connected to the top end portion 23a of the flexible flat cable 23; and a movable connector 24b connected to a connector (not shown) of the upper rail 12.

[0097] As described above, when the seat support member 3 moves in the front-rear direction via the slide rail 10, the movable terminal portion 24 provided on the connector mounting portion 22c also moves in the front-rear direction. Therefore, the movable connector 24b moves in accordance with the front-rear movement of the upper rail 12, and power can be supplied to the upper rail 12.

[0098] like Figures 4 to 6A As shown, the fixed terminal portion 25 is provided at the base end portion 23b of the flexible flat cable 23 and is mounted on the front end portion 21h of the housing 21. The fixed terminal portion 25 includes: a fixed cable 25a connected to the base end portion 23b of the flexible flat cable 23; and a fixed connector 25b connected to a power source P provided on the vehicle body.

[0099] The fixed connector 25 b is connected to the power source P via the control device 5 . By electrically connecting the fixed terminal portion 25 and the movable terminal portion 24 via the flexible flat cable 23 , power from the power source P can be supplied to the slide rail 10 .

[0100] like Figure 4 , Fig. 6A As shown in the figure, the guide belt 26 is accommodated in the housing 21, extends in the front-back direction, and guides the flexible flat cable 23. Specifically, the guide belt 26 is mounted on the sliding portion 22 together with the flexible flat cable 23, and extends toward the rear in the housing 21. Moreover, the guide belt 26 is bent and folded back in the housing 21, extends toward the front, and is fixed to the front end portion 21h of the housing 21.

[0101] like Fig. 6A As shown, the guide belt 26 is a long strip-shaped guide member extending substantially in the front-back direction. The guide belt 26 is formed of a metal material such as stainless steel or a resin material. The guide belt 26 is arranged in the housing 21 in such a manner that the thickness direction of the guide belt 26 is consistent with the left-right direction of the housing 21, the width direction is consistent with the up-down direction of the housing 21, and the length direction is consistent with the front-back direction of the housing 21.

[0102] like Figure 7 As shown in FIG. 1 , the cross-sectional shape of the guide tape 26 is formed in an arc shape convex toward the flexible flat cable 23 . The guide tape 26 is arranged so that the convex surface 26A faces the flexible flat cable 23 .

[0103] The guide belt 26 includes a movable end portion 26a mounted on the slide portion 22 together with the top end portion 23a of the flexible flat cable 23, a fixed end portion 26b fixed to the housing 21 together with the base end portion 23b, and a curved portion 26c provided between the movable end portion 26a and the fixed end portion 26b. The curved portion 26c is a portion of the middle portion of the guide belt 26 between the movable end portion 26a and the fixed end portion 26b, and is a portion that is curved in a substantially U-shape in a plan view as the slide portion 22 moves.

[0104] The movable end portion 26 a is attached to the slide portion 22 , and moves in the front-rear direction together with the tip portion 23 a of the flexible flat cable 23 in accordance with the front-rear movement of the slide portion 22 .

[0105] The fixed end portion 26 b is attached to the front end portion 21 h of the housing 21 , and is fixed to the housing 21 together with the base end portion 23 b of the flexible flat cable 23 .

[0106] The curved portion 26 c is provided so as to be curved along the flexible flat cable 23 , and guides the flexible flat cable 23 .

[0107] The holding member 27 is a member for holding the guide belt 26 to suppress the vertical shaking of the guide belt 26, and is formed of resin, etc. The holding member 27 is provided between the fixed end portion 26b and the curved portion 26c of the guide belt 26, and has a base portion 28 disposed on the right side of the guide belt 26, and a locking portion 29 provided on the base portion 28 and locking the guide belt 26.

[0108] like Fig. 6A As shown in FIG. 2 , when the slide portion 22 is in the forward position, the retaining member 27 is located near the curved portion 26 c. Figure 6B As shown in FIG. 2 , when the slide portion 22 moves backward and is in the middle position, the retaining member 27 is located between the fixed end portion 26 b and the curved portion 26 c. Figure 6C As shown in FIG. 1 , when the slide portion 22 moves further rearward and is in the rear position, the holding member 27 is located between the fixed end portion 26 b away from the bent portion 26 c and the bent portion 26 c .

[0109] In this way, the guide belt 26 is held between the fixed end portion 26b and the curved portion 26c by the locking portion 29 of the holding member 27. As a result, regardless of the position of the curved portion 26c in the front-rear direction, the downward bending moment applied to the curved portion 26c is reduced, and deformation of the guide belt 26 caused by gravity or the like is suppressed. Therefore, the lower edge of the guide belt 26 is unlikely to contact the housing bottom wall 21a of the housing 21, and the generation of abnormal sound can be suppressed.

[0110] like Figure 7As shown, the holding member 27 is provided on the housing 21 so as to face the concave surface 26B of the guide belt 26. That is, the base portion 28 is provided at a position facing the concave surface 26B of the guide belt 26 opposite to the convex surface 26A on the flexible flat cable 23 side.

[0111] In addition, the holding member 27 may be provided on the housing 21 so as to face the convex surface 26A of the guide belt 26. That is, the base portion 28 may be provided at a position facing the convex surface 26A of the guide belt 26 on the flexible flat cable 23 side (between the guide belt 26 and the flexible flat cable 23).

[0112] The base portion 28 is a member, for example, in the shape of a long strip extending in the front-rear direction along the guide belt 26. Figure 8 As shown, the base portion 28 is disposed at a position overlapping the guide tape 26 in the thickness direction of the guide tape 26 , that is, in the left-right direction.

[0113] The locking portion 29 is a portion that locks the end (upper end or lower end) in the width direction of the guide belt 26. The locking portion 29 is provided in a manner that protrudes from the base portion 28 toward the guide belt 26 at the central portion 27a, the front portion 27b, and the rear portion 27c of the holding member 27. The locking portion 29 extends from the end of the base portion 28 in the vertical direction to the left, and overlaps with the guide belt 26 in the vertical direction.

[0114] In addition, in this embodiment, the locking portion 29 is provided at three locations: the central portion 27a, the front portion 27b, and the rear portion 27c of the holding member 27. However, this is not limiting, and the locking portion 29 may be provided at any one of the central portion 27a, the front portion 27b, and the rear portion 27c.

[0115] like Figure 8 As shown, the locking portion 29 includes: a bulging portion 30 that locks the upper end of the guide belt 26; and a claw portion 31 that locks the upper and lower ends of the guide belt 26. That is, the guide belt 26 is accommodated in a space surrounded by the base portion 28, the bulging portion 30 of the locking portion 29, and the claw portion 31.

[0116] In addition, the locking portion 29 is provided with a bulging portion 30 in the central portion 27a, a front locking piece 31a in the front portion 27b, and a rear locking piece 31b in the rear portion 27c. However, this is not limited to this, and the bulging portion 30 may be provided in the front portion 27b and the rear portion 27c, and the claw portion 31 may be provided in the central portion 27a. In addition, the bulging portion 30 may be provided in all of the central portion 27a, the front portion 27b, and the rear portion 27c, and the claw portion 31 may be provided in all of the central portion 27a, the front portion 27b, and the rear portion 27c.

[0117] like Figure 8 , Fig. 9 As shown, the bulge 30 extends leftward from the upper end 28a of the base 28 at the central position (central portion 27a) in the extension direction of the base 28, i.e., the front-rear direction, and overlaps with the guide belt 26 in the vertical direction. That is, the bulge 30 locks the upper end of the guide belt 26.

[0118] The lower surface of the bulging portion 30 abuts against the upper end of the guide belt 26, and the top end surface 30a of the bulging portion 30 abuts against the flexible flat cable 23. The top end surface 30a of the bulging portion 30 has a rounded shape.

[0119] In addition, in this embodiment, the bulging portion 30 is provided at the upper end portion 28a, but it may be provided at the lower end portion 28b. In addition, the bulging portion 30 may be provided at both the upper end portion 28a and the lower end portion 28b.

[0120] like Figure 8 , Fig. 10A As shown, the claws 31 extend leftward from the upper end 28a and the lower end 28b of the base 28 at both ends (the front part 27b and the rear part 27c) in the front-rear direction of the base 28, and overlap in the vertical direction. That is, the claws 31 lock the upper and lower ends of the guide belt 26.

[0121] Furthermore, in the present embodiment, the claw portion 31 is provided at the upper end portion 28a and the lower end portion 28b, but may be provided at either the upper end portion 28a or the lower end portion 28b.

[0122] like Fig. 9 As shown in FIG. 10 , in the left-right direction, the length L1 of the bulging portion 30 is longer than the length L2 of the claw portion 31. Therefore, the bulging portion 30, which is longer than the claw portion 31, contacts the flexible flat cable 23, and the guide belt 26 is held at a position away from the flexible flat cable 23. In addition, when the top end surface 30a of the bulging portion 30 contacts the flexible flat cable 23, the top end surface 30a has a rounded shape, so that the flexible flat cable 23 can be prevented from being worn by the holding member 27.

[0123] In this way, the holding member 27 can stably hold the guide belt 26 by holding the ends of the guide belt 26 in the vertical direction with the locking portion 29. In addition, by stably holding the guide belt 26 with the holding member 27, the lower edge of the guide belt 26 at the curved portion 26c is less likely to collide with the housing bottom wall 21a of the housing 21. Thus, the generation of abnormal sound can be suppressed.

[0124] In order to suppress the vertical shaking of the holding member 27, the holding member 27 may be installed in contact with the housing 21. For example, an elastic member that applies force in the vertical direction may be provided on the holding member 27, thereby holding the holding member 27 on the housing 21 by the force of the elastic member.

[0125] in addition, Fig. 10A The stopper 29 shown in the figure extends from the upper and lower end surfaces of the base 28 in the thickness direction of the base 28, and overlaps with the guide belt 26 in the upper and lower directions to hold the ends of the guide belt 26 in the upper and lower directions. Fig. 10B As shown, the locking portion 29 may be provided at the upper and lower ends of the base portion 28 at a position closer to the center than the upper and lower end surfaces. The upper and lower ends of the base portion 28 refer to portions other than the center portion in the vertical direction.

[0126] like Fig. 10B As shown, the base portion 28 of the holding member 27 of the modified example has: a stepped upper end portion 128a, in which a step is formed on the upper end surface; and a curved lower end portion 128b, in which a curved surface is formed on the lower end surface. By providing the stepped upper end portion 128a and the curved lower end portion 128b, the thickness of the upper and lower ends of the base portion 28 is thinner than the thickness of the central portion.

[0127] <Manufacturing method>

[0128] A method for manufacturing the vehicle seat S will be described.

[0129] First, the operator prepares a seat body having a seat cushion 1 and a seat back 2. Then, the operator mounts the seat body on a slide rail 10 extending in a predetermined direction, that is, the front-rear direction, so as to be movable in the front-rear direction. Specifically, the operator fixes the seat support member 3 of the seat body above the upper rail 12 of the slide rail 10.

[0130] Then, the operator arranges the power supply rail 20 on the side of the slide rail 10 along the direction in which the slide rail 10 extends. Specifically, the operator arranges the housing 21 of the power supply rail 20 in the rail groove formed in the floor F so as to be adjacent to the slide rail 10.

[0131] In addition, the operator electrically connects the movable terminal portion 24 of the power supply rail 20 to the slide rail 10. Specifically, the operator connects the movable terminal portion 24 connected to the top end portion 23a of the flexible flat cable 23 to a connector (not shown) provided in the upper rail 12 of the slide rail 10. In addition, the operator electrically connects the fixed terminal portion 25 of the power supply rail 20 to a power source P provided on the vehicle body.

[0132] Thus, electric power from the power source P is supplied to the upper rail 12 of the slide rail 10 via the power supply rail 20 .

[0133] In addition, the power supply rail 20 includes: a shell 21, which extends in the front-to-back direction and has a cylindrical shape; a sliding portion 22, which is installed in a manner that can move relative to the shell 21 in the front-to-back direction; a flexible flat cable 23, which is accommodated in the shell 21 and extends in the front-to-back direction; a movable terminal portion 24, which is provided at the top end portion 23a of the flexible flat cable 23 and is installed on the sliding portion 22; a fixed terminal portion 25, which is provided at the base end portion 23b of the flexible flat cable 23 and is installed on the shell 21; a guide belt 26, which is accommodated in the shell 21, extends in the front-to-back direction along the flexible flat cable 23, and guides the flexible flat cable 23; and a retaining member 27, which retains the guide belt 26.

[0134] The flexible flat cable 23 has a top end 23a connected to the movable terminal 24 and a base end 23b connected to the fixed terminal. The guide belt 26 has a movable end 26a mounted on the slide 22 together with the top end 23a, a fixed end 26b fixed to the housing 21 together with the base end 23b, and a curved portion 26c provided between the movable end 26a and the fixed end 26b and curved.

[0135] The holding member 27 includes a base portion 28 disposed between the fixed end portion 26b and the curved portion 26c and arranged at a position overlapping the guide belt 26 in the left-right direction, and a stopper portion 29 extending from an upper end portion or a lower end portion of the base portion 28 in the left-right direction and overlapping the guide belt 26 in the upper-lower direction. The holding member 27 holds the guide belt 26 by the stopper portion 29.

[0136] Alternatively, the base portion 28 may extend in the front-rear direction along the guide belt 26 , and the bulging portion 30 of the locking portion 29 may extend from the upper end portion in the horizontal direction at the center portion in the extending direction of the base portion 28 and overlap the guide belt 26 in the vertical direction.

[0137] Alternatively, the base portion 28 may extend in the front-rear direction along the guide belt 26 , and the claw portion 31 of the locking portion 29 may extend in the left-right direction from the upper or lower end at the side end portion in the extension direction of the base portion 28 and overlap with the guide belt 26 in the upper-lower direction.

[0138] Alternatively, the base portion 28 may extend in the front-rear direction along the guide belt 26 and be provided at a position facing the concave surface 26B of the guide belt 26 which is opposite to the convex surface 26A on the flexible flat cable 23 side.

[0139] Furthermore, the length of the bulging portion 30 may be longer than the length of the claw portion 31 in the left-right direction.

[0140] The method for manufacturing the vehicle seat S is as follows.

[0141] A method for manufacturing a vehicle seat, manufacturing a vehicle seat,

[0142] The manufacturing method comprises:

[0143] A seat body having a seat cushion and a seat back is prepared,

[0144] The seat body is mounted on a slide rail extending in the predetermined direction so as to be movable in the predetermined direction.

[0145] A power supply rail is arranged on the side of the slide rail along the extending direction of the slide rail.

[0146] The power supply track comprises:

[0147] a housing extending in the prescribed direction and having a cylindrical shape;

[0148] a sliding portion mounted relative to the housing so as to be movable along the prescribed direction;

[0149] a flexible flat cable, received in the housing and extending along the specified direction;

[0150] A movable terminal portion, provided at one end of the flexible flat cable and mounted on the sliding portion;

[0151] A fixed terminal portion, disposed at the other end of the flexible flat cable and mounted on the housing;

[0152] a guide belt, housed in the housing, extending along the flexible flat cable in the prescribed direction and guiding the flexible flat cable; and

[0153] a holding member for holding the guide belt,

[0154] The flexible flat cable has a top end connected to the movable terminal portion and a base end connected to the fixed terminal portion.

[0155] The guide belt includes: a movable end portion mounted on the sliding portion together with the top end portion; a fixed end portion fixed to the housing together with the base end portion; and a curved portion disposed between the movable end portion and the fixed end portion and curved.

[0156] The holding member is disposed between the fixed end portion and the curved portion, has a locking portion for locking at least one end portion of the guide belt in the width direction, and the guide belt is held by the locking portion. The manufacturing method further includes:

[0157] The movable terminal portion of the power supply track is electrically connected to the slide rail.

[0158] In the method for manufacturing the vehicle seat, the holding member includes a base portion disposed at a position overlapping the guide strip in a thickness direction of the guide strip, and the locking portion.

[0159] The locking portion extends from at least one end portion of the base portion in the width direction of the guide tape toward the thickness direction, and overlaps with the guide tape in the width direction.

[0160] In the method for manufacturing the vehicle seat, the base portion extends in the predetermined direction along the guide belt.

[0161] The locking portion has a central portion in the extending direction of the base portion extending from at least one end of the base portion in the width direction toward the thickness direction and overlaps with the guide belt in the width direction.

[0162] In the method for manufacturing the vehicle seat, the base portion extends in the predetermined direction along the guide belt.

[0163] At least one side end portion of the locking portion in the extending direction of the base portion extends from at least one end portion of the base portion in the width direction toward the thickness direction and overlaps with the guide belt in the width direction.

[0164] In the method for manufacturing the vehicle seat, the base portion extends in the predetermined direction along the guide belt.

[0165] Both end portions of the locking portion in the extending direction of the base portion extend from at least one end portion of the base portion in the width direction toward the thickness direction and overlap with the guide belt in the width direction.

[0166] In the method for manufacturing the vehicle seat, the base portion extends along the guide belt in the predetermined direction and is provided at a position facing a surface of the guide belt that is opposite to a surface on the flexible flat cable side.

[0167] The locking portions extend from both ends of the base portion in the width direction toward the thickness direction, and overlap with the guide belt in the width direction.

[0168] In the method for manufacturing the vehicle seat, the base portion extends along the guide belt in the predetermined direction and is provided at a position facing a surface of the guide belt that is opposite to a surface on the flexible flat cable side.

[0169] The locking portion comprises: a bulging portion, the central portion of which in the extension direction of the base portion extends from at least one end portion of the base portion in the width direction to the thickness direction and overlaps with the guide belt in the width direction; and claw portions, the two end portions of which in the extension direction of the base portion extend from at least one end portion of the base portion in the width direction to the thickness direction and overlap with the guide belt in the width direction.

[0170] In the thickness direction, the bulging portion has a length longer than that of the claw portion.

[0171] <Variation 1>

[0172] Next, based on Fig.11A , a modification example 1 of the power supply track 20 will be described. In addition, description of the contents overlapped with those of the power supply track 20 will be omitted.

[0173] like Fig.11A As shown, in the power supply track 20 according to the first modification, a protrusion 23 d is formed on the flexible flat cable 23 .

[0174] Specifically, a protrusion 23d is formed at the lower end of the flexible flat cable 23. The protrusion 23d is substantially inverted triangular shape when viewed from the left and right directions, and a plurality (e.g., three) of the protrusions 23d are arranged and formed in the front-back direction. The protrusion 23d is formed, for example, between the base end 23b and the middle portion 23c of the flexible flat cable 23 and further forward than the holding member 27.

[0175] Thus, by forming the protrusion 23d on the flexible flat cable 23, deformation of the flexible flat cable 23 due to gravity of the middle portion 23c is less likely to occur. Therefore, excessive contact between the flexible flat cable 23 and the housing bottom wall 21a of the housing 21 can be suppressed, thereby suppressing the generation of abnormal sound.

[0176] <Variation 2>

[0177] Next, based on Fig. 11B , a second modification of the power supply rail 20 will be described.

[0178] like Fig. 11B As shown, the power supply rail 20 according to the second modification has a protruding piece 26 d formed on the guide belt 26 .

[0179] Specifically, a protruding piece 26d is formed at the lower end of the guide belt 26. The protruding piece 26d is substantially inverted triangular shape when viewed from the left and right directions, and a plurality (e.g., three) of the protruding pieces 26d are arranged and formed in the front-back direction. The protruding piece 26d is formed, for example, between the fixed end 26b and the curved portion 26c of the guide belt 26 and further forward than the retaining member 27.

[0180] Thus, by forming the protruding piece 26d on the guide belt 26, deformation of the guide belt 26 due to gravity of the curved portion 26c is less likely to occur. Therefore, excessive contact between the guide belt 26 and the housing bottom wall 21a of the housing 21 can be suppressed, thereby suppressing the generation of abnormal sound.

[0181] <Variation 3>

[0182] Next, based on Fig. 11C , a third modification of the power supply rail 20 will be described.

[0183] like Fig. 11C As shown, the power supply rail 20 according to the third modification has a raised portion 21 l formed on the housing bottom wall 21 a of the housing 21 .

[0184] Specifically, a raised portion 211 is formed at a position (near the left wall portion 21c) of the housing bottom wall 21a corresponding to the flexible flat cable 23, and is raised from the housing bottom wall 21a toward the upper side. The raised portion 211 has a substantially trapezoidal cross-sectional shape when viewed from the front-back direction, and is formed to extend in the front-back direction. The raised portion 211 is formed, for example, at a position of the housing bottom wall 21a corresponding to the base end portion 23b and the middle portion 23c of the flexible flat cable 23 and further forward than the retaining member 27.

[0185] Thus, by forming the raised portion 211 on the housing bottom wall 21a, deformation of the flexible flat cable 23 due to gravity of the middle portion 23c is less likely to occur. Therefore, excessive contact between the flexible flat cable 23 and the housing bottom wall 21a of the housing 21 can be suppressed, thereby suppressing the generation of abnormal sound.

[0186] <Variation 4>

[0187] Next, based on Fig.12 , a modification 4 of the vehicle seat S will be described.

[0188] Regarding the vehicle seat S of the modification 4, Fig.12 As shown, in a vehicle including three rows of seats in the front-rear direction, front seats S1 corresponding to front seats of the vehicle, middle seats S2 of the second row, and rear seats S3 of the third row are included.

[0189] like Fig.12 As shown, the vehicle seat S includes a plurality of rail devices 4 that support each seat body so that it can move forward and backward. Specifically, the vehicle seat S includes: a front rail device 4A that supports the seat body of the front seat S1 so that it can move forward and backward; a middle rail device 4B that supports the seat body of the middle seat S2 so that it can move forward and backward; and a rear rail device 4C that supports the seat body of the rear seat S3 so that it can move forward and backward.

[0190] In this manner, even when a plurality of vehicle seats S are provided, electric power can be supplied from the power source P to the slide rails 10 of the vehicle seats S via the power supply rails 20 .

[0191] Furthermore, in the present embodiment, a plurality of control devices 5 and power sources P are provided and connected to each rail device 4 , but the present invention is not limited thereto, and one control device 5 and power source P may be provided in common to each rail device 4 .

[0192] <Variant 5>

[0193] Next, based on Fig.13 , Fig.14 , a modification 5 of the vehicle seat S will be described.

[0194] Regarding the vehicle seat S of Modification 5, Fig.13 As shown, in a vehicle including three rows of seats in the front-rear direction, front seats S1 corresponding to front seats of the vehicle, middle seats S2 of the second row, and rear seats S3 of the third row are included.

[0195] like Fig.13 As shown, the vehicle seat S includes a long rail device 4D that supports each seat body as a long strip that can move forward and backward. The long rail device 4D includes a long power supply rail 40 that supplies power to the slide rails 10 of the front seat S1, the slide rails 10 of the middle seat S2, and the slide rails 10 of the rear seat S3.

[0196] like Fig.14 As shown, the long power supply rail 40 has a long housing 41 extending in a long strip shape in the front-rear direction and accommodates the power supply mechanism of each vehicle seat S. Specifically, the long power supply rail 40 has a first sliding portion 42a for the front seat S1, a second sliding portion 42b for the middle seat S2, and a third sliding portion 42c for the rear seat S3.

[0197] The long power supply rail 40 includes a first flexible flat cable 43 a for the front seat S1 , a second flexible flat cable 43 b for the center seat S2 , and a third flexible flat cable 43 c for the rear seat S3 .

[0198] Furthermore, the long power supply rail 40 includes a first guide belt 46 a for the front seat S1 , a second guide belt 46 b for the center seat S2 , and a third guide belt 46 c for the rear seat S3 .

[0199] The long power supply rail 40 includes a first holding member 47 a for the front seat S1 , a second holding member 47 b for the center seat S2 , and a third holding member 47 c for the rear seat S3 .

[0200] Thus, even when a plurality of vehicle seats S are provided, power can be supplied from the power source P to the slide rails 10 of the vehicle seats S via the long power supply rail 40. Furthermore, by providing the first holding member 47a, the second holding member 47b, and the third holding member 47c in the long housing 41, deformation of the first guide belt 46a, the second guide belt 46b, and the third guide belt 46c is less likely to occur.

[0201] In the above embodiment, the slide rail 10 and the power supply rail 20 extend in the front-to-back direction (prescribed direction), but the present invention is not limited thereto. In terms of the prescribed direction, the slide rail 10 and the power supply rail 20 may extend in the left-right direction, or in a direction other than the front-to-back direction or the left-to-right direction.

[0202] In addition, in the above-described embodiment, the power supply rail and vehicle seat used in the automobile are described as specific examples, but there is no particular limitation, and the invention can be used in two-wheeled seats for two-wheeled vehicles, vehicle seats for trains or buses, seats for transportation vehicles such as airplanes or ships, and various other seats such as office chairs for work, wheelchairs, and children's chairs for shopping carts.

[0203] In the present embodiment, the power supply rail and the vehicle seat of the present invention are mainly described.

[0204] The above-described embodiment is merely an example for facilitating understanding of the present invention and does not limit the present invention. The present invention can of course be changed and improved without departing from the gist thereof, and its equivalents are of course included in the present invention.

[0205] Explanation of symbols

[0206] S: Vehicle seat

[0207] S1: Front seat

[0208] S2: Middle seat

[0209] S3: Rear seats

[0210] F: Floor

[0211] P: Power

[0212] 1: Seat cushion

[0213] 1a: Cushioning material

[0214] 1b: Surface material

[0215] 2: Seat back

[0216] 2a: Cushioning material

[0217] 2b: Surface material

[0218] 3: Seat support components

[0219] 4: Track device

[0220] 4A: Front track assembly

[0221] 4B: Intermediate track device

[0222] 4C: Rear track device

[0223] 5: Control device

[0224] 6: Operation switch

[0225] 10: Slide rail

[0226] 11: Lower track

[0227] 11a: Inner wall of track

[0228] 12: Upper track

[0229] 12a: Upper surface

[0230] 13: Electric Motor

[0231] 13a: Motor bracket

[0232] 14: Drive shaft

[0233] 15: Gearbox

[0234] 15a: Gear bracket

[0235] 15b: Box opening

[0236] 16: Threaded components

[0237] 16a: First bearing part

[0238] 16b: Second bearing portion

[0239] 16c: The third bearing

[0240] 17: First threaded member

[0241] 18: Second threaded member

[0242] 19: Threaded engagement portion

[0243] 19a: First engagement portion

[0244] 19b: Second engagement portion

[0245] 20: Power supply track

[0246] 21: Shell

[0247] 21a: Shell bottom wall

[0248] 21b: Right wall

[0249] 21c: Left wall

[0250] 21d: Upper wall

[0251] 21e: Middle wall

[0252] 21f: Slit

[0253] 21g: Eaves

[0254] 21h: Front end of the shell

[0255] 21i: Rear end of the housing

[0256] 21j: Hood

[0257] 21k: Opening

[0258] 21l: bulge

[0259] 22: Sliding part

[0260] 22a: Main body

[0261] 22b: Protrusion

[0262] 22c: Connector mounting portion

[0263] 22d: Connection

[0264] 22e: Flat cable installation part

[0265] 23: Flexible flat cable

[0266] 23a: Top part

[0267] 23b: Base end

[0268] 23c: Middle part

[0269] 23d: protrusion

[0270] 24: Movable terminal

[0271] 24a: Movable cable

[0272] 24b: Movable connector

[0273] 25: Fixed terminal part

[0274] 25a: Fixed cable

[0275] 25b: Fixed connector

[0276] 26: Guide belt

[0277] 26A: Concave

[0278] 26B: Convex

[0279] 26a: Moving end

[0280] 26b: Fixed end

[0281] 26c: Bend

[0282] 26d: protruding piece

[0283] 27: Keep the component

[0284] 27a: Central part

[0285] 27b: Front part (side end part, both end parts)

[0286] 27c: rear part (side end part, both end parts)

[0287] 28: Base

[0288] 28a: Upper end

[0289] 28b: Lower end

[0290] 128a: Upper end of step difference

[0291] 128b: Lower end of the curved surface

[0292] 29: Stopper

[0293] 30: Bulging part

[0294] 31: Claw

[0295] 31a: Front stopper

[0296] 31b: Rear stopper

[0297] 4D: Long track installation

[0298] 40: Long power supply track

[0299] 41: Long shell

[0300] 42a: First sliding portion

[0301] 42b: Second sliding portion

[0302] 42c: Third sliding portion

[0303] 43a: The first flexible flat cable

[0304] 43b: Second flexible flat cable

[0305] 43c: Third flexible flat cable

[0306] 46a: First guide band

[0307] 46b: Second guide band

[0308] 46c: Third guide belt

[0309] 47a: First holding member

[0310] 47b: Second holding member

[0311] 47c: Third holding member

Claims

1. A power supply track, characterized in that: include: a housing extending in a prescribed direction and having a cylindrical shape; a sliding portion mounted relative to the housing so as to be movable along the prescribed direction; a flexible flat cable, received in the housing and extending along the specified direction; A movable terminal portion, provided at one end of the flexible flat cable and mounted on the sliding portion; A fixed terminal portion, disposed at the other end of the flexible flat cable and mounted on the housing; a guide belt, housed in the housing, extending along the flexible flat cable in the specified direction, and guiding the flexible flat cable; as well as a holding member for holding the guide belt, The flexible flat cable has a top end connected to the movable terminal portion and a base end connected to the fixed terminal portion. The guide belt includes: a movable end portion mounted on the sliding portion together with the top end portion; a fixed end portion fixed to the housing together with the base end portion; and a curved portion disposed between the movable end portion and the fixed end portion and curved. The holding member is provided between the fixed end portion and the bent portion, has a locking portion for locking at least one end portion of the guide belt in the width direction, and holds the guide belt by the locking portion.

2. The power supply track according to claim 1, characterized in that: The holding member includes a base portion arranged at a position overlapping the guide tape in a thickness direction of the guide tape, and the locking portion. The locking portion extends from at least one end portion of the base portion in the width direction of the guide tape toward the thickness direction, and overlaps with the guide tape in the width direction.

3. The power supply track according to claim 2, characterized in that: The base portion extends along the guide belt in the prescribed direction, The locking portion has a central portion in the extending direction of the base portion extending from at least one end of the base portion in the width direction toward the thickness direction and overlaps with the guide belt in the width direction.

4. The power supply track according to claim 2, characterized in that: The base portion extends along the guide belt in the prescribed direction, At least one side end portion of the locking portion in the extending direction of the base portion extends from at least one end portion of the base portion in the width direction toward the thickness direction and overlaps with the guide belt in the width direction.

5. The power supply track according to claim 2, characterized in that: The base portion extends along the guide belt in the prescribed direction, Both end portions of the locking portion in the extending direction of the base portion extend from at least one end portion of the base portion in the width direction toward the thickness direction and overlap with the guide belt in the width direction.

6. The power supply track according to claim 2, characterized in that: The base portion extends along the guide belt in the predetermined direction and is provided at a position facing a surface of the guide belt that is opposite to a surface on the flexible flat cable side. The locking portions extend from both ends of the base portion in the width direction toward the thickness direction, and overlap with the guide belt in the width direction.

7. The power supply track according to claim 2, characterized in that: The base portion extends along the guide belt in the predetermined direction and is provided at a position facing a surface of the guide belt that is opposite to a surface on the flexible flat cable side. The locking portion comprises: a bulging portion, the central portion of which in the extension direction of the base portion extends from at least one end portion of the base portion in the width direction to the thickness direction and overlaps with the guide belt in the width direction; and claw portions, the two end portions of which in the extension direction of the base portion extend from at least one end portion of the base portion in the width direction to the thickness direction and overlap with the guide belt in the width direction. In the thickness direction, the bulging portion has a length longer than that of the claw portion.

8. A vehicle seat, characterized in that include: A seat body having a seat cushion and a seat back; a slide rail extending in the prescribed direction and supporting the seat body so as to be movable in the prescribed direction; as well as The power supply rail according to claim 1, The power supply rail is arranged on the side of the slide rail along the extending direction of the slide rail.

Images