JP2023172340A - Power feeding rail - Google Patents

Abstract

To provide a power feeding rail having a structure capable of preventing the collision of an elastic belt and a power feeding rail, resulting in inhibited generation of abnormal noise.SOLUTION: A power feeding rail stricture comprises a cylindrical power-feeding rail extending in a predetermined direction, a slider provided on the power-feeding rail in a slidable manner along the predetermined direction, an elastic belt having a based end joined to one end of the power-feeding rail, a bending part bending in a U-shape at an intermediate part of the power-feeding rail in the predetermined direction, a loose end joined to the slider, and an upward edge and a downward edge, a flexible flat cable having a based end joined to the one end of the power feeding rail, a loose end joined to the slider, and extending along the elastic belt, and a support member supporting the elastic belt between the base end and the bending part of the power feeding rail.SELECTED DRAWING: Figure 4

Description

The present invention relates to a power supply rail structure, and more particularly to a power supply rail structure for supplying power to a vehicle seat from a power source on the side of a vehicle such as an automobile.

Patent Document 1 discloses a power supply rail that includes a slit extending in a predetermined direction and has a substantially rectangular cylindrical shape; an elastic belt that is arranged within the power supply rail and is bent in a U-shape at an intermediate portion in the predetermined direction; A power supply rail structure is disclosed having a flexible flat cable disposed along an elastic belt. The base end of the flexible flat cable is fixed to the power supply rail by a fixed terminal connected to the wiring of the vehicle's power supply circuit. Furthermore, a slider is provided at the free end of the flexible flat cable, which is connected to the wiring of the slide seat of the vehicle and is capable of reciprocating in a predetermined direction via a slit.

According to this configuration, the flexible flat cable and the elastic belt reciprocate in a predetermined direction in response to the advance and retreat of the sliding seat and the slider, so that power is transferred from the power supply circuit of the vehicle to the sliding seat via the flexible flat cable. can be supplied. At this time, since the flexible flat cable is arranged along the U-shaped elastic belt, the flexible flat cable will not buckle within the power supply rail even if the slide sheet and slider move back and forth. It is possible to reciprocate without any movement.

JP2020-032862

However, in the configuration disclosed in Patent Document 1, the elastic belt deforms due to gravity or the like at the intermediate portion of the elastic belt, particularly at the bent portion where the elastic belt is bent into a U-shape. As a result, when the vehicle body vibrates, for example, when the vehicle is running, the elastic belt collides with the bottom surface of the power supply rail, causing a problem that abnormal noise is generated.

SUMMARY OF THE INVENTION In view of these problems, it is an object of the present invention to prevent collision between an elastic belt and a power supply rail in a power supply rail structure, and to suppress the generation of abnormal noise.

In order to solve this problem, one aspect of the present invention includes a power supply rail (15) having a cylindrical shape extending in a predetermined direction, and a slider provided so as to be slidable with respect to the power supply rail along the predetermined direction. (40), a base end coupled to one end of the power supply rail, a bent portion (56) bent in a U-shape at an intermediate portion of the power supply rail in the predetermined direction, and a bent portion (56) coupled to the slider. an elastic belt (51) having a free end and an edge facing in the vertical direction; a base end coupled to the one end of the power supply rail; and a free end coupled to the slider; It has a flexible flat cable (50) extending along the elastic belt, and a support member (52) that supports the elastic belt between the base end and the bent part, and the support member provides a power supply rail structure (1) having a vertical wall (63) sandwiched between the flexible flat cable and the elastic belt, the central part of the vertical wall engaging with the elastic belt.

According to this aspect, since the elastic belt is supported by the support member between the base end and the bent portion, deformation of the elastic belt due to gravity or the like is less likely to occur. This prevents the elastic belt from colliding with the power supply rail, and suppresses the generation of abnormal noise. Moreover, the elastic belt can be stably supported.

Further, in the above configuration, it is preferable that the support member includes a lower wall (65) extending laterally from the lower end of the vertical wall.

According to this configuration, the posture of the support member can be stabilized.

Further, in the above configuration, the vertical wall of the support member includes a locking pin (69) protruding laterally, and the elastic belt includes an opening passing through a surface of the elastic belt. Preferably, the elastic belt is fixed to the support member by the locking pin protruding into the opening of the elastic belt.

According to this configuration, since the elastic belt is reliably fixed to the support member, it is possible to prevent the elastic belt from falling off from the support member.

Further, in the above configuration, it is preferable to include elastic legs (67) that resiliently abut against the power supply rail from above and below.

According to this configuration, rattling of the support member is reduced, so generation of abnormal noise due to the support member can be suppressed.

Further, in the above configuration, the support member has an upper wall (64) extending laterally from the upper end of the vertical wall, and the vertical wall, the lower wall, and the upper wall provide side support to the supporting member. A recessed portion (68) is formed that opens toward the vertical wall of the support member, and the elastic belt has a cross-sectional shape that is convex toward the vertical wall of the support member, and the edge of the elastic belt extends toward the vertical wall of the support member. Preferably, it is received within the recess.

According to this configuration, since vertical movement of the elastic belt is restricted by the upper wall and the lower wall, the elastic belt is less likely to collide with the power supply rail, and generation of abnormal noise can be suppressed.

Further, in the above configuration, the power supply rail includes a bottom wall (16) extending in the predetermined direction, and a first side wall (18) and a second side wall (17) extending upward from both left and right ends of the bottom wall. , an upper wall (19) extending from the upper end of the second side wall toward the first side wall, and a center wall (20) extending downward from the tip of the upper wall, the tip of which reaches the bottom wall. A hollow first space (22) is defined by the first side wall, the bottom wall, and the center wall, and the top wall, the second side wall, the bottom wall, and the center wall, A hollow second space (23) is defined, and a portion of the slider to which the free end of the elastic belt and the free end of the flexible flat cable are fixed is arranged in the second space, The slider is capable of sliding in the first space and the second space in the predetermined direction through a slit (21) that extends in the predetermined direction by penetrating the central wall in the left-right direction. good.

According to this configuration, the slider in the first space is protected in the left-right direction by the first side wall. This can prevent unexpected pressing force from being applied to the slider, making it difficult for the slider to come into contact with the power supply rail, and making it possible to suppress the generation of abnormal noise.

Further, in the above configuration, it is preferable that the first side wall has an eaves portion (30) that projects toward the center wall.

According to this configuration, it is possible to prevent foreign matter from entering the power supply rail from outside the power supply rail, and therefore it is possible to prevent the flexible flat cable from coming into contact with foreign matter and being disconnected.

Further, in the above configuration, a base portion that is provided movably along the predetermined direction and extends substantially back and forth, a front convex portion (12) that extends from the front and rear ends of the base portion to the left and right sides, and a rear side The slider further includes a receiving member (11) having a convex portion (13), the slider being disposed between the front convex portion and the rear convex portion, and adapted to allow the receiving member to slide in the predetermined direction. It is preferable that the slider is configured to slide in the predetermined direction in accordance with the above.

According to this configuration, the slider can be slid in a predetermined direction in conjunction with the receiving member with a simple configuration.

Further, in the above configuration, it is preferable that the lower end of the slider has a rib (46) that projects downward.

According to this configuration, when the slider swings in the vertical direction, the rib comes into contact with the bottom surface of the power supply rail, so that abnormal noise can be reduced.

According to the present invention, it is possible to provide a power supply rail structure in which collision between an elastic belt and a power supply rail is prevented and generation of abnormal noise is suppressed.

A perspective view showing a vehicle seat provided with a power supply rail structure according to the present invention A cross-sectional view of the slider and receiving member according to the present invention viewed from above A perspective view of the power supply rail seen from the rear. A cross-sectional view of the power supply rail seen from the IV-IV line in Figure 3. A perspective view of the rear end of the power supply rail seen from the rear. 6 is a cross-sectional view of the power supply rail as seen from line VI-VI in FIG. 3, in which the slider is located at the rear end in FIG. 6(A), and the slider is located at the forefront in FIG. 6(B). A perspective view of a support member according to the present invention

Hereinafter, with reference to the drawings, an embodiment in which a power supply rail structure 1 according to the present invention is provided in a vehicle such as an automobile will be described. In the following description, left and right will be defined based on the passenger seated on the vehicle seat 2 of the vehicle.

As shown in FIG. 1, left and right slide rails 4 and 5 are provided on the floor 3 of the vehicle, extending substantially back and forth. The slide rails 4 and 5 each include a bracket 7 that is fixed to the floor 3 of the vehicle and has a substantially thin plate shape with its main surface facing up and down, a lower rail 8 that is fixed to the top surface of the bracket 7, and a lower rail 8 that extends from the front and rear of the lower rail 8. It includes an upper rail 9 that is slidably fitted in the upper rail 9 and is integrally fixed to the seat cushion of the vehicle seat 2 at the upper portion thereof. Thereby, the vehicle seat 2 is slidable in the front and rear directions with respect to the floor 3.

Hereinafter, in order to simplify the explanation, the power supply rail structure 1 provided on the right slide rail 4 will be described. However, the power supply rail structure 1 of the present invention has the structure reversed horizontally and is provided on the left slide rail 5. It's okay to be hit.

As shown in FIG. 2, a receiving member 11 extending along the upper rail 9 is provided on the right side of the upper rail 9. As shown in FIG. A front convex portion 12 and a rear convex portion 13 extending rightward from the front and rear ends of the receiving member 11 are substantially perpendicular to the upper rail 9 . The receiving member 11 has an insertion hole for inserting a fastening member such as a bolt, and is fixed to the side surface of the upper rail 9 by the fastening member.

At a position on the right side of the bracket 7 with respect to the lower rail 8 and the upper rail 9, a power supply rail structure 1 that extends approximately back and forth is provided. The power supply rail structure 1 is a structure for electrically connecting a power source provided in a vehicle and a vehicle seat 2, and for supplying power from the vehicle side power source to the vehicle seat 2.

As shown in FIGS. 3 and 4, the power supply rail structure 1 includes a power supply rail 15 having a substantially rectangular cylindrical shape extending substantially back and forth. The power supply rail 15 includes a bottom wall 16 that faces the bracket 7 in the vertical direction and extends substantially back and forth, and a left side wall that extends upward from both left and right ends of the bottom wall 16 substantially perpendicularly to the bottom wall 16. 17, a right side wall 18, and an upper wall 19 extending from the upper end of the left side wall 17 substantially parallel to the bottom wall 16. The tip of the top wall 19 is located to the left of the right side wall 18, and from the tip of the top wall 19, a center wall 20 that is substantially perpendicular to the top wall 19 extends downward, and its tip touches the bottom wall 16. has reached. The center wall 20 is provided with a slit 21 that penetrates the center wall 20 in the left-right direction and extends in the front-rear direction.

A hollow first space 22 is defined by the right side wall 18, bottom wall 16, and center wall 20, and a hollow second space 23 is defined by the top wall 19, left side wall 17, bottom wall 16, and center wall 20. is defined. As shown in FIG. 3, the front and rear ends of the power supply rail 15 on the first space 22 side are open in the front and rear. Further, the front end of the power supply rail 15 on the second space 23 side is closed by a front cap 24 , and the rear end of the power supply rail 15 on the second space 23 side is closed by a rear cap 25 .

From the right end of the bottom wall 16 of the power supply rail 15, a plurality of thin plate-shaped fastening pieces 27 whose main surfaces face upward and downward extend to the right at predetermined intervals in the front-rear direction. The fastening piece 27 has an insertion hole for inserting a fastening member such as a bolt, and is fixed to the bracket 7 by the fastening member. The power supply rail 15 is made of metal such as aluminum, for example.

On the bottom wall 16 on the first space 22 side, a guide wall 28 that is substantially parallel to the center wall 20 is erected upward. The tip of the guide wall 28 is preferably located below the lower end of the opening of the center wall 20. At the lower end of the center wall 20 on the upper wall 19 side, a first eave portion 29 that slopes downward toward the right and an upper rib 31 that projects leftward substantially perpendicularly to the center wall 20 are formed. ing. The tip of the first eave portion 29 is preferably disposed to the right of the guide wall 28. Further, a second eaves portion 30 is provided at the upper end of the right side wall 18 and projects leftward substantially perpendicularly to the center wall 20. The upper end of the first eaves section 29 is preferably disposed below the upper end of the right side wall 18. Further, the lower end of the first eaves section 29 is preferably disposed below the lower end of the second eaves section 30. Further, the length of the first eaves section 29 in the left-right direction is preferably longer than the length of the second eaves section 30 in the left-right direction.

A first lower rib 32 and a second lower rib 33 located below the first lower rib 32 are arranged on the left side of the center wall 20 at a portion below the slit 21 and extend toward the right side of the center wall. It protrudes approximately perpendicularly to 20. Furthermore, a third lower rib 34 protrudes leftward and substantially perpendicularly to the center wall 20 at a portion of the right side surface of the center wall 20 located below the second lower rib 33 .

A cover 36 is formed above the power supply rail 15 and the slide rail 4, and the cover 36 covers the upper surfaces of the power supply rail 15 and the slide rail 4 and extends in the front-rear direction. Left and right lips 37 are formed in portions of the cover 36 corresponding to the upper side of the first space 22 . An opening extending in the front-rear direction is formed between the left and right lips 37. The cover 36 is made of resin or the like.

As shown in FIG. 4, a slider 40 that extends substantially vertically is arranged in the first space 22 of the power supply rail 15. The slider 40 includes a body portion 41 that extends substantially vertically, and a main body portion 42 that is fixed to a lower portion of the body portion 41. The slider 40 is made of an insulator such as ABS resin.

The distal end of the body portion 41 extends upward to the outside of the first space 22 through the opening between the left and right lips 37 . Further, as shown in FIG. 2, the upper portion of the body portion 41 is received between the front convex portion 12 and the rear convex portion 13 of the receiving member 11.

The main body portion 42 extends from the lower end of the body portion 41 to the left. A guide piece 47 that is substantially parallel to the guide wall 28 and the center wall 20 extends downward from the lower end of the main body 42 . Accepted. Further, a portion of the main body portion 42 extends into the second space 23 through the slit 21 to form an engaging portion 43 . The upper and lower ends of the engaging portion 43 protrude leftward to form a pair of upper and lower engaging pieces 44 . An abutment rib 46 that projects downward is provided at the tip of the engagement piece 44 .

Inside the second space 23 of the power supply rail 15, there are an engaging part 43 and an engaging piece 44 of the slider 40 extending from the first space 22 side, and a band-shaped flexible cable whose main surface faces left and right and extends substantially back and forth. A flat cable 50, a band-shaped elastic belt 51 extending along the inner surface of the flexible flat cable 50, and a support member 52 that supports the elastic belt 51 are received.

The flexible flat cable 50 is a group of flexible transmission lines in which a plurality of metal plates (for example, copper plates) made of conductors are arranged in the width direction and their outer surfaces are covered with heat-resistant insulating tape. As shown in FIGS. 5 and 6, the base end of the flexible flat cable 50 is fixed inside the rear cap 25 and is electrically connected to a vehicle body harness 55 that is connected to a power source of the vehicle body. ing. The flexible flat cable 50 extends forward from the rear cap 25 along the left side wall 17 of the power supply rail 15, and is bent rearward at an intermediate portion of the power supply rail 15 in the front-rear direction to form a U-shaped bend. A portion 56 is formed. The flexible flat cable 50 further extends rearward from the bent portion 56 along the right side wall 18 of the power supply rail 15 and is fixed between a pair of upper and lower engaging pieces 44 formed on the engaging portion 43 of the slider 40. There is. The free end of the flexible flat cable 50 is electrically connected via the slider 40 to a seat-side harness 58 that is connected to wiring on the vehicle seat side. Thereby, the power source on the vehicle body side and the vehicle seat 2 are electrically connected.

The elastic belt 51 is arranged in the second space 23 so that its width direction substantially corresponds to the upper and lower sides, and extends along the inner surface of the flexible flat cable 50. The outer surface of the elastic belt 51 , that is, the surface on the flexible flat cable 50 side, is formed into a curved shape that is convex toward the flexible flat cable 50 . The base end of the elastic belt 51 is fixed inside the rear cap 25, and the free end of the elastic belt 51 is fixed to the engaging portion 43 of the slider 40. Further, the elastic belt 51 forms a U-shaped bent portion 56 together with the flexible flat cable 50 at an intermediate portion of the power supply rail 15 in the front-rear direction. The elastic belt 51 is made of a metal material such as stainless steel or a resin material.

A support member 52 for supporting the elastic belt 51 is provided in a portion of the power supply rail 15 between the base end of the elastic belt 51 and the bent portion 56 . As shown in FIG. 6, in the present embodiment, the support member 52 is configured such that the elastic belt 51 and the flexible flat cable 50 form a bent portion 56 when the slider 40 slides to the rearmost part in the first space 22. It is provided slightly behind the position, that is, slightly behind the bent portion 56 in FIG. 6(A). Further, the support member 52 of this embodiment is close to the left side wall 17 and is arranged so as not to interfere with the slider 40 even if the slider 40 slides in the front-back direction.

As shown in FIGS. 4 and 7, the support member 52 has a vertical wall 63 extending substantially parallel to the left side wall 17 of the power supply rail 15, and a vertical wall 63 extending from the upper and lower ends of the vertical wall 63 to the right. It has an upper wall 64 and a lower wall 65 that extend substantially vertically. Elastic legs 67 are formed on the lower surface of the lower wall 65 and extend toward the bottom wall 16 of the power supply rail 15 . Further, the upper wall 64 of the support member 52 is in contact with the upper wall 19 of the power supply rail 15, and the support member 52 is urged in the vertical direction by the elastic legs 67. As another embodiment, an elastic portion extending toward the upper wall 19 of the power supply rail 15 may be provided on the upper surface of the upper wall 64 .

Elastic belt 51 is received within a recess 68 defined by vertical wall 63, top wall 64, and bottom wall 65. Further, the positions of the upper and lower edges of the elastic belt 51 in the left-right direction are arranged to the left compared to the positions in the direction of the upper wall 64 and the lower wall 65. That is, the elastic belt 51 is covered by the upper wall 64 and the lower wall 65 from above and below.

At approximately the center of the main surface of the vertical wall 63, a locking pin 69 that extends toward the right and approximately perpendicular to the vertical wall 63 protrudes, and the locking pin 69 of the support member 52 of the elastic belt 51 protrudes toward the right. Openings that pass through the elastic belt 51 from side to side are provided at positions corresponding to . The locking pin 69 of the support member 52 projects into the opening of the elastic belt 51, thereby fixing the elastic belt 51 to the support member 52.

Further, as shown in FIG. 6, around the support member 52, the flexible flat cable 50 is bent toward the left side wall 17 of the power supply rail 15, and between the left side wall 17 of the power supply rail 15 and the vertical wall of the support member 52. It is located in That is, the surfaces of the elastic belt 51 and the flexible flat cable 50 are separated from each other in the left-right direction by the vertical wall 63 of the support member 52.

Next, the principle of operation of the slider 40 in the front-rear direction and the operation of the power supply rail structure 1 of this embodiment will be explained. When the upper rail 9 moves forward with respect to the lower rail 8, the receiving member 11 fixed to the upper rail 9 also moves forward, so that the rear side surface of the body 41 of the slider 40 moves away from the rear convex portion 13 of the receiving member 11. Pressed forward. As a result, the slider 40 moves forward in response to the advance of the upper rail 9. At this time, the slider 40 slides forward with respect to the power supply rail 15 while being guided by the guide piece 47 arranged between the guide wall 28 and the center wall 20. Further, the body portion 41 moves forward while deforming the lip 37 of the cover 36 upward. Furthermore, in response to the forward movement of the slider 40, the free ends of the flexible flat cable 50 and the elastic belt 51 fixed to the slider 40 also move forward.

Similarly, when the upper rail 9 retreats with respect to the lower rail 8, the receiving member 11 fixed to the upper rail 9 also retreats, and the front side surface of the trunk 41 is pushed backward from the front convex portion 12 of the receiving member 11. It happens. As a result, the slider 40 and the free ends of the flexible flat cable 50 and the elastic belt 51 fixed to the slider 40 move backward in response to the receiving member 11.

In this way, when the sliding seat moves forward and backward, the elastic belt 51 and the flexible flat cable 50 are configured to move forward and backward as one, so that the flexible flat cable 50 is less likely to buckle. Moreover, since the elastic belt 51 of this embodiment has a curved shape that is convex toward the flexible flat cable 50, the strength of the elastic belt 51 is improved, and in the straight portion where the elastic belt 51 extends substantially back and forth, The elastic belt 51 is less likely to buckle.

The elastic belt 51 of this embodiment is fixed to a locking pin 69 of the support member 52 between the bent portion 56 and the base end. As a result, the downward bending moment applied to the bent portion 56 is reduced regardless of the position of the bent portion 56 in the front-rear direction, and deformation of the elastic belt 51 due to gravity or the like is suppressed. Therefore, the lower edge of the elastic belt 51 is less likely to collide with the bottom wall 16 of the power supply rail 15, and the generation of abnormal noise is suppressed. Further, the support member 52 of the present embodiment is located slightly behind the position where the elastic belt 51 and the flexible flat cable 50 form the bent portion 56 when the slider 40 slides to the rearmost part in the first space 22, i.e. It is provided slightly behind the bent portion 56 in FIG. 6(A). As a result, the downward bending moment applied to the bent portion 56 is favorably reduced, and deformation of the elastic belt 51 due to gravity or the like is further suppressed.

Further, the support member 52 is urged in the vertical direction by elastic legs 67. This makes it difficult for the support member 52 to rattle, for example, when vibration occurs in the vehicle body, thereby suppressing the generation of abnormal noise. Furthermore, since the support member 52 is easily held in a predetermined position, the elastic belt 51 is less likely to fall off from the locking pin 69 of the support member 52.

Further, the support member 52 has a vertical wall 63 sandwiched between the flexible flat cable 50 and the elastic belt 51. The vertical wall 63 extends substantially vertically. Further, the support member 52 includes an upper wall 64 and a lower wall 65 that extend from the upper and lower ends of the vertical wall 63 in one direction. This prevents the support member 52 from wobbling and stabilizes its posture. Thereby, the elastic belt 51 can be stably supported. Additionally, the upper and lower edges of the elastic belt 51 are received within a recess 68 defined by a vertical wall 63, an upper wall 64, and a lower wall 65. As a result, vertical movement of the elastic belt 51 is restricted by the upper wall 19 and the lower wall 65, making it difficult for the elastic belt 51 to collide with the power supply rail 15. Further, a central portion of the vertical wall 63 engages with the elastic belt 51. The elastic belt 51 is fixed by protruding into the locking pin 69. Thereby, the elastic belt 51 is reliably fixed to the support member 52, so that the elastic belt 51 can be prevented from falling off from the support member 52. Furthermore, since the locking pin 69 extends in a direction substantially perpendicular to the vertical wall, the elastic belt 51 can be fixed to the support member 52 by a simple means.

Furthermore, the power supply rail 15 of this embodiment includes a right side wall 18 that covers the slider 40 in the first space 22 from the right side. This can prevent unexpected pressing force from being applied to the slider 40 in the first space 22, making it difficult for the slider 40 to come into contact with the power supply rail 15, and suppressing the generation of abnormal noise.

Further, at the lower end of the center wall 20 on the upper wall 19 side of the power supply rail 15, a first eaves section 29 that slopes downward toward the right is provided, and the upper end of the first eaves section 29 is connected to the upper end of the right side wall 18. It is placed lower. As a result, when a foreign object such as a screw enters the power supply rail 15 from above the first space 22, it is likely to fall on the first eave part 29, and it becomes difficult for the foreign object to enter the second space 23. Breakage of the flexible flat cable 50 is suppressed. Furthermore, since the tip of the first eaves section 29 is disposed to the right of the guide wall 28, when a foreign object falls on the first eaves section 29, there is a gap between the guide wall 28 and the right side wall 18. It will be easier to land. Further, if the foreign object that has landed between the guide wall 28 and the right side wall 18 is relatively large, sliding movement of the slider 40 in the front and rear direction causes the foreign object to be moved out of the power supply rail 15 from the front and rear ends on the first space side. It will be pushed out. Thereby, foreign matter within the first space 22 can be easily removed.

Further, since the second eaves portion 30 extending leftward is provided at the upper end of the right side wall 18, the intrusion of foreign objects such as screws into the second space 23 is further suppressed. Furthermore, since the lower end of the second eaves section 30 is disposed above the lower end of the first eaves section 29, foreign objects tend to fall on the first eaves section 29 and may enter the second space 23. It becomes difficult to do. Further, the length of the first eaves section 29 in the left-right direction is longer than the length of the second eaves section 30 in the left-right direction. Thereby, the first eaves section 29 and the second eaves section 30 can be effectively arranged with the first space 22 having a predetermined length.

Although the description of the specific embodiments has been completed above, the present invention is not limited to the above-described embodiments and can be widely modified. For example, in the above embodiment, the cross-sectional shape of the elastic belt 51 is not limited to a curved shape as long as the elastic belt 51 can press down the flexible flat cable 50 with spring force. Further, the specific configuration, arrangement, quantity, angle, etc. of each member or portion can be changed as appropriate without departing from the spirit of the present invention. On the other hand, all of the constituent elements shown in the above embodiments are not necessarily essential and can be selected as appropriate.

1 : Power supply rail structure 2 : Vehicle seat 4 : Slide rail 5 : Slide rail 11 : Receiving member 12 : Front convex part 13 : Rear convex part 15 : Power supply rail 16 : Bottom wall 17 : Right side wall 19 : Top wall 20 : Central wall 22 : First space 23 : Second space 24 : Front cap 25 : Rear cap 29 : First eave part 37 : Lip 40 : Slider 50 : Flexible flat cable 51 : Elastic belt 52 : Support member 63 : Vertical Wall 64: Upper wall 67: Elastic leg 68: Recess 69: Locking pin

Claims (9)

a power supply rail having a cylindrical shape extending in a predetermined direction;
a slider slidably provided with respect to the power supply rail along the predetermined direction;
It has a base end coupled to one end of the power supply rail, a bent part bent in a U-shape at an intermediate part of the power supply rail in the predetermined direction, and a free end coupled to the slider, and has an upper and lower end. an elastic belt having a oriented edge;
a flexible flat cable having a base end coupled to the one end of the power supply rail and a free end coupled to the slider, and extending along the elastic belt;
a support member that supports the elastic belt between the base end and the bent portion,
The support member has a vertical wall sandwiched between the flexible flat cable and the elastic belt,
A power supply rail structure in which a central portion of the vertical wall engages with the elastic belt. The power supply rail structure according to claim 1, wherein the support member includes a lower wall extending laterally from a lower end of the vertical wall. the vertical wall of the support member includes a locking pin protruding laterally;
the elastic belt includes an opening passing through a surface of the elastic belt;
The power supply rail structure according to claim 2, wherein the elastic belt is fixed to the support member by the locking pin protruding into the opening of the elastic belt. The power supply rail structure according to claim 2 or 3, wherein the support member has elastic legs that resiliently abut against the power supply rail from above and below. The support member has an upper wall extending laterally from the upper end of the vertical wall,
A recess opening laterally is formed by the vertical wall, the lower wall, and the upper wall,
The elastic belt has a cross-sectional shape convex toward the vertical wall of the support member,
4. A power supply rail structure according to claim 2 or 3, wherein the edge of the elastic belt is received within the recess. The power supply rail includes a bottom wall extending in the predetermined direction, a first side wall and a second side wall extending upward from both left and right ends of the bottom wall, and an upper wall extending from an upper end of the second side wall toward the first side wall. and a central wall extending downward from the tip of the top wall, the tip of which reaches the bottom wall,
A hollow first space is defined by the first side wall, the bottom wall, and the center wall,
A hollow second space is defined by the top wall, the second side wall, the bottom wall, and the center wall,
A portion of the slider to which the free end of the elastic belt and the free end of the flexible flat cable are fixed is arranged in the second space,
2. The slider according to claim 1, wherein the slider is slidable in the first space and the second space in the predetermined direction via a slit that extends in the predetermined direction and passes through the center wall in the left-right direction. Feed rail structure as described. The power supply rail structure according to claim 6, wherein the first side wall has an eaves portion projecting toward the center wall. further comprising a receiving member having a base portion that is movable along the predetermined direction and extends substantially back and forth, and a front convex portion and a rear convex portion that extend from the front and rear ends of the base portion to the left and right sides;
the slider is arranged between the front convex part and the rear convex part,
The power supply rail structure according to claim 1, wherein the slider is configured to slide in the predetermined direction following the sliding movement of the receiving member in the predetermined direction. The power supply rail structure according to claim 1, wherein the lower end of the slider has a rib that projects downward.

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