JP2014177277A - Power feeder for sliding seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power feeder which can reduce a size and weight, and can more securely maintain electrical connection.SOLUTION: A power feeder feeds power by electrically connecting a vehicle body side to a sliding seat side which can slide in a longitudinal direction with respect to a vehicle body. The power feeder includes: a case 20 arranged in parallel to a sliding direction; a band-like flat cable 60 which electrically connects the sliding seat side to the vehicle body side and is housed in an inside of the case 20; and a cable fixing part which fixes one end of the flat cable 60 and houses it inside the case 20. The flat cable 60 is slidably routed with a surplus length enough to follow slide movement by a movable side linear part 63 arranged approximately linearly from the cable fixing part, a reversing part 62 which reverses in an approximately U shape from a tip end of the movable side linear part 63, and a fixed side linear part 61 arranged approximately linearly from a tip end of the reversing part 62.

Description

  The present invention relates to a power supply device for a slide seat that electrically connects, for example, a vehicle body side and a slide seat side that moves in the vehicle longitudinal direction in a vehicle such as an automobile.

  In vehicles such as automobiles, various measures have been made to absorb impact loads by the vehicle body structure in order to protect passengers in the event of a collision. In addition, occupant protection in the event of a collision is being promoted not only by the vehicle body structure but also by legal development.

  For example, in driver seats where seat belts are required, it is mandatory to install a “seating belt alarm device” or “re-alarm device (seat belt reminder)” that warns the driver of non-wearing of the seat belt. It has been. These devices tend to be installed on seats other than the driver's seat by automakers in line with the mandatory seat belts for all seats.

  However, the passenger seat and the rear seat may not be seated in the passenger seat unlike the driver seat. Therefore, sensors are installed in the passenger seat and the rear seat to detect that an occupant is seated. And when this sensor and ECU fixed to the vehicle body side are electrically connected via an electric wire and a sensor detects the seating of a passenger | crew, the warning of seat belt non-wearing is emitted by control of ECU.

  Incidentally, in recent years, in vehicles such as minivans and SUVs, seats that move greatly in the vehicle front-rear direction, so-called slide seats, are set, and various seat arrangements are realized together with the folding mechanism of the slide seats.

As the slide amount of the slide sheet increases, the electric wire connecting the sensor and the ECU needs to have a sufficient length that can follow the slide operation. For this reason, depending on the slide position of the slide sheet, there is a problem that the electric wire is exposed from the bottom of the slide sheet, or the occupant hooks his / her foot on the exposed electric wire.
In view of this, there has been proposed a power supply device for a slide sheet that follows the slide operation of the slide sheet and does not expose an extra electric wire.

  For example, in Patent Document 1, a rail having a slit that is substantially parallel to the slide direction of the slide sheet, a slider that moves along the slit of the rail, one end fixed to the slider, and the other end fixed to the vehicle body side and the vehicle front and rear An electric wire arranged in a substantially U shape in the direction is provided. And the rail, the slider, and the electric wire are accommodated in the case fixed to the floor of the vehicle.

  The slider is led out from a slit provided in the case and fixed to the slide sheet. And the electric wire in a case is connected to the electric wire for a lead fixed to the slider, and even if a slide sheet slides, it is supposed that an excess electric wire will not be exposed outside.

  In this way, even if there is a device for occupant protection, a variety of seat arrangements can be realized without impairing the appearance, while in the automobile industry, vehicles are installed in order to improve boarding and exiting and to save energy by lowering the cabin floor. There is a demand for smaller and lighter components.

  However, in Patent Document 1, since the electric wire arranged in a substantially U-shape moves following the slide sheet, stress is easily applied to the substantially U-shaped bent portion, and it is difficult to reduce the bending radius of the electric wire. . For this reason, the case which accommodates the electric wire bent in the substantially U shape becomes large in the vehicle width direction, and there exists a problem that size reduction and weight reduction of the electric power feeder for slide sheets are difficult. In addition, since the power supply device for the slide sheet is fixed to the feet of the passenger compartment having a large amount of foreign matters such as dust, it is necessary to prevent the electric wires from being damaged due to the foreign matters entering the inside.

JP 2006-35962 A

  In view of the above-described problems, an object of the present invention is to provide a power supply device for a slide sheet that can be reduced in size and weight and can maintain an electrical connection more reliably.

The present invention is a power supply device for a slide sheet that electrically connects and supplies power to a vehicle body side of a vehicle and a slide seat side that can slide in a predetermined direction with respect to the vehicle body, and the slide of the slide sheet And a substantially flat base surface having at least the sliding direction as a longitudinal direction, two substantially flat upright surfaces erected from both lateral ends of the base surface, and A slit-like slit opening formed at the tip of the standing surface and facing the base surface, and extending in the longitudinal direction at a position between the opposing surfaces and facing substantially the center in the short direction of the base surface A case provided with a portion, and the slide seat side and the vehicle body side are electrically connected, and the width direction is substantially perpendicular to the base surface, and at least one belt-like shape housed in the case F And a cable fixing part that is accommodated in the case so as to follow the sliding movement of the slide sheet, and fixes one end of the flat cable, and the cable fixing part is more than the slit opening part of the case. While forming in a size that is wide and has a gap between the case,
On the upper surface of the cable fixing portion, a lead-out portion that passes through the slit opening is erected so that the cable fixing portion is caught from the slide seat, and the cable fixing portion, the lead-out portion, and the case, Forming a gap between the first cable portion, one end of the flat cable fixed to a side surface of the cable fixing portion, and the first cable portion arranged substantially linearly in the longitudinal direction from the cable fixing portion; The reversing portion that is reversed in a substantially U shape in the thickness direction of the flat cable from the tip of the first straight portion, and the second straight portion that is disposed substantially linearly in the longitudinal direction from the tip of the reversing portion, It is characterized in that it is slidably arranged with a surplus length that can follow the sliding operation.

The predetermined direction can be the front-rear direction or the left-right direction of the vehicle.
The base surface may be an upper surface, a side surface, a bottom surface, or the like in the case.

According to the present invention, it is possible to configure a power supply device for a slide sheet that can be reduced in size and weight and can maintain electrical connection more reliably.
Specifically, by using a flat cable for electrical connection between the vehicle body side and the slide seat side, it is possible to reduce the weight of the electric wires bundled with the conductors. Moreover, a flat cable can make a bending radius small with respect to the electric wire which bundled the conductor. That is, the width in the short-side direction of the case that accommodates the flat cable inverted in a substantially U shape can be further reduced.

  Furthermore, by arranging the width direction of the flat cable substantially perpendicular to the base surface, the contact area between the flat cable and the base surface can be extremely reduced. Thereby, it can suppress that a flat cable bites the foreign material which penetrate | invaded, and the damage and disconnection of a flat cable can be prevented.

  In addition, the slide sheet power supply apparatus can improve the case rigidity without special reinforcement by reducing the size of the case. And since the electric power feeder for slide sheets can implement | achieve weight reduction by size reduction, energy saving and cost reduction can be aimed at.

  The cable fixing portion is in a state of being caught from the slide sheet, and the cable fixing portion can be accommodated inside the case without being supported by the inner surface of the case and the flat cable. That is, the cable fixing portion can be accommodated inside the case in a suspended state from the slide sheet. As a result, even if the cable fixing portion moves in the sliding direction following the sliding movement of the slide sheet, there is no risk of sliding with the second straight portion of the flat cable, thus preventing damage and disconnection of the flat cable. Can do.

  In addition, since the cable fixing portion does not contact the inner surface of the case and the flat cable inside the case, the resistance applied to the sliding operation can be extremely reduced. That is, since it is not necessary to form a member for connecting the slide sheet and the cable fixing portion firmly, it is possible to reduce the size and weight.

  In addition, even if a foreign object enters the case, there is no risk that the cable fixing part will bite the foreign substance and move in the sliding direction because there is an appropriate gap between the inner surface of the case, the flat cable, and the cable fixing part. The cable fixing portion can smoothly follow the slide operation of the slide sheet.

  In addition, when the slide sheet slides, even if the cable fixing portion is inclined in the sliding direction, the cable fixing portion does not possibly interfere with the inside of the case.

  Therefore, the power supply device for a slide sheet can be reduced in size and weight, and can realize a smooth slide operation while more reliably maintaining an electrical connection.

  Since the case includes the slit opening and the facing surface, the aperture ratio at the facing surface facing the base surface can be minimized. Moreover, it can suppress that a foreign material penetrate | invades into the inside of a case from an opposing surface, without inhibiting the sliding operation | movement of a slide sheet by a slit opening part.

  Therefore, the power supply device for a slide sheet can more reliably maintain an electrical connection even if it is reduced in size and weight.

As an aspect of the present invention, the case is fixed with the slit opening facing upward, and the flat cable is positioned on the base surface of the case facing the facing surface on the outer side in the short direction. The first linear portion and the second linear portion can be slidable, and a substantially concave bottom groove portion can be provided at a portion of the base surface facing the slit opening.

According to the present invention, it is possible to prevent the foreign matter that has entered from the slit opening from directly attaching to the sliding portion. That is, it is possible to prevent the flat cable from being damaged or disconnected by biting foreign matter.
Since the base surface is provided with the bottom groove portion, foreign matter that has entered from the slit opening can be received by the bottom groove portion. Furthermore, since the bottom groove is formed in a substantially concave shape, the received foreign matter can be prevented from jumping out easily. Thereby, since it becomes difficult for a foreign material to adhere on a base surface, damage and disconnection of a flat cable can be prevented more reliably.

In addition, even if foreign matter adheres to the base surface, the foreign matter on the base surface can be wiped off to the bottom groove when the inverted portion of the flat cable slides in the sliding direction.
Therefore, the power supply device for a slide sheet can more reliably maintain an electrical connection even if it is reduced in size and weight.

  Further, as an aspect of the present invention, the terminal at one end of the flat cable can be led out of the case along one of the side surfaces of the lead-out portion facing in the longitudinal direction.

  According to the present invention, a flat cable having a surplus length that can follow the sliding motion of the slide sheet can be led out of the case without being directly fixed to the slide sheet.

  Further, by fixing the flat cable to the lead-out portion, it is possible to prevent an extra flat cable from being exposed outside the case. Thereby, there is no possibility that an occupant gets a foot on the flat cable, and damage or disconnection of the flat cable outside the case can be prevented.

  Furthermore, since the flat cable is fixed to one of the surfaces facing the slide direction in the lead-out portion, there is no possibility that the flat cable in the lead-out portion slides with the case or the like. Thereby, breakage and disconnection of the flat cable can be prevented.

  Therefore, the power supply device for a slide sheet can more reliably maintain an electrical connection even if it is reduced in size and weight.

  Further, as an aspect of the present invention, the longitudinal direction of the case is a front-rear direction, the front cover is disposed relatively forwardly, and the rear cover portion that closes the opening at the rear end of the case; and the front end of the case at the front end A base cover, the opposing surface, and a front cover portion that closes an opening formed by the two standing surfaces can be provided.

According to the present invention, foreign matter can be further prevented from entering the case, and foreign matter received by the bottom groove can be discharged.
Specifically, by closing the opening at the rear end of the case that is disposed relatively forwardly lowered with the rear cover portion, it is possible to prevent foreign matter from entering the case from the foot or the luggage compartment.

  In particular, the slide direction of the slide seat is often the front-rear direction of the vehicle. In addition, the floor surface constituting the vehicle compartment of the vehicle is generally formed slightly downward. That is, when the case is arranged along the floor surface, the case is inevitably lowered, so that a foreign matter can enter the case along the floor surface by providing a rear cover portion at the rear end of the case. Can be prevented.

  On the other hand, the opening by the bottom groove part can be formed in the front end by the front cover part that closes the opening by the base surface, the opposing surface, and the two standing surfaces at the front end of the case. Since the front end is relatively low with respect to the rear end of the case, the foreign matter received by the bottom groove can be discharged from the opening formed by the bottom groove.

In other words, in the case that is disposed in a relatively front-down direction, the front cover portion and the rear cover portion are provided, so that foreign matter can be prevented from entering the case, and the foreign matter that has entered can be smoothly discharged. be able to.
Therefore, the power supply device for a slide sheet can more reliably maintain an electrical connection even if it is reduced in size and weight.

  Moreover, as an aspect of the present invention, a case fixing portion that fixes the case to the vehicle body can be integrally formed at the longitudinal end portions of the front cover portion and the rear cover portion.

  According to the present invention, by forming the case fixing portion in the sliding direction of the slide sheet, it is possible to reliably receive the resistance caused by the slide operation of the slide sheet transmitted to the case. Furthermore, since the width in the short direction of the case can be suppressed, the short direction of the case can be reduced in size.

  Further, by accommodating the cable fixing portion in a suspended state inside the case, the resistance due to the sliding operation is further reduced, so that the number of fixing points with the vehicle body can be further reduced. That is, the power supply device for a slide sheet can minimize the number of fixing points to be fixed to the vehicle body. Thereby, the electric power feeder for slide sheets can reduce a number of parts, and can achieve further weight reduction and cost reduction.

  Therefore, the power supply device for the slide sheet can be further reduced in size and weight while reliably receiving the resistance due to the slide operation.

  According to the present invention, it is possible to provide a power supply device for a slide sheet that can be reduced in size and weight and can maintain electrical connection more reliably.

The side view from the vehicle left direction which shows the electric power feeder in a vehicle interior. The external appearance perspective view from the upper part which shows the external appearance of an electric power feeder. AA arrow sectional drawing in FIG. The fragmentary sectional view which shows the internal structure of a case. The expansion perspective view which shows the front part cover part in FIG. The expansion perspective view from the lower part which shows the front cover part in FIG. The expansion perspective view from the upper part which shows the rear part cover part in FIG. The expansion perspective view which shows the slider in FIG. The external appearance perspective view from the top which shows the slider and flat cable in the storage space of a case.

An embodiment of the present invention will be described below with reference to the drawings.
In addition, the front direction (front part) in this specification has shown the vehicle front side, and the rear direction (rear part) has shown the vehicle rear side.

  1 shows a side view of the power supply apparatus 10 in the vehicle interior from the left side of the vehicle, FIG. 2 shows an external perspective view of the power supply apparatus 10 from above, and FIG. 3 shows an AA arrow in FIG. FIG. 4 is a partial cross-sectional view showing the internal structure of the case 20. 5 shows an enlarged perspective view of the front cover portion 30 in FIG. 2, FIG. 6 shows an enlarged perspective view from below of the front cover portion 30 in FIG. 2, and FIG. 7 shows the rear cover portion 40 in FIG. 8 shows an enlarged perspective view from above, FIG. 8 shows an enlarged perspective view of the slider 50 in FIG. 2, and FIG. 9 shows an external perspective view of the slider 50 and the flat cable 60 in the housing space X of the case 20 from above. Yes.

  Further, in FIGS. 1, 2, and 9, the position of the slider 50 in a state where the slide sheet 2 illustrated by a two-dot chain line is positioned at the foremost end of the slidable range is illustrated by a solid line. And the slider 50 in the state located in the last end of the range which can slide the slide sheet 2 is shown with the dashed-two dotted line. In addition, illustration of the case 20 is omitted in FIGS. 5 and 8.

  As shown in FIG. 1, the vehicle interior of the vehicle is provided with a slide seat 2 that slides in the front-rear direction of the vehicle by a slide mechanism (not shown) installed on a floor surface 1 that is lowered forward. The floor surface 1 in the downward direction of the slide sheet 2 is provided with a power feeding device 10 fixed in parallel to the slide direction of the slide sheet 2.

  The power supply device 10 is configured to be able to supply power by electrically connecting the vehicle body side and the slide seat 2 side while moving in the front-rear direction following the slide operation of the slide seat 2.

  Specifically, as shown in FIG. 1 and FIG. 2, the power feeding device 10 moves in a front-rear direction through a case 20 formed in a long frame shape, and a slit-like opening formed in the upper surface of the case 20. And a front cover portion 30 for fixing the front end of the case 20 to the vehicle body, and a rear cover portion 40 for fixing the rear end to the vehicle body.

  A sensor 4 is provided at the upper end of the slider 50 to detect that an occupant is seated on the slide seat 2. Furthermore, the electric wire 3 connected to ECU which controls the warning of not wearing the seat belt based on the detection signal of the sensor 4 is led out from the case 20 to the outside.

  As shown in FIGS. 2 to 4, the case 20 includes an upper surface 21 that faces the bottom of the slide seat 2 in the vertical direction, a right side surface 22 that is formed downward from both ends of the upper surface 21 in the vehicle width direction, and a left side. The surface 23 is formed by the right side 22 and the bottom 24 connecting the lower ends of the left side 23.

  As shown in FIGS. 2 and 3, the upper surface 21 is a flat plate-like upper right corner formed in substantially the same width so as to form a slit-like slit opening 25 extending in the front-rear direction at the approximate center in the vehicle width direction. The surface portion 21a and the left upper surface portion 21b are formed in parallel with a predetermined interval in the vehicle width direction.

  As shown in FIG. 3, the right side surface 22 and the left side surface 23 are formed so as to hang downward at substantially right angles from the vehicle width direction outer ends of the right upper surface portion 21a and the left upper surface portion 21b, respectively. In addition, screw holes (not shown) for inserting the front cover 30 and the screws 6 for fixing the rear cover to the case 20 are opened in the front and rear of the left side surface 23.

  As shown in FIGS. 3 and 4, the bottom surface 24 has a substantially flat plate shape, is opposed to the top surface 21 in the vertical direction, and is formed so as to connect the lower ends of the right side surface 22 and the left side surface 23. . Further, a bottom groove portion 26 is formed in the bottom surface 24 by dug down substantially in the center in the vehicle width direction.

  As shown in FIG. 3, the bottom groove portion 26 is opposed to the slit opening portion 25 with a width in the vehicle width direction that is larger than the opening width in the vehicle width direction of the slit opening portion 25 and smaller than the width between flat cables 60 described later. The bottom surface 24 is formed in a substantially concave shape. Note that the bottom groove portion 26 is formed in a substantially concave shape with such a depth that foreign matter that has entered the bottom groove portion 26 does not jump out onto the bottom surface 24 due to centrifugal force or vibration when the vehicle turns.

  As described above, the upper surface 21, the right side surface 22, the left side surface 23, the bottom surface 24, and the bottom groove portion 26 form a hollow housing space X, and the case 20 having an opening at the end in the front-rear direction is configured. .

  Further, the front cover portion 30 and the rear cover portion 40 for fixing the case 20 to the floor surface 1 are respectively inserted into the openings at the front and rear ends of the case 20 and fixed to the case 20 with screws 6. ing.

  Specifically, as shown in FIGS. 5 and 6, the front cover portion 30 includes a front cover main body portion 31 that is inserted from the front direction into the opening at the front end of the case 20 and closed, and the front portion. The front body fixing portion 32 is formed in the front direction from the cover main body portion 31 and is fixed to the floor surface 1.

  As shown in FIGS. 5 and 6, the front cover body 31 includes a right upper surface 21 a, a right surface 22, a main body right portion 31 a that is inserted into an opening formed by a bottom surface 24 that faces the right upper surface portion 21 a, and a left upper surface portion 21 b. The left side 23 and the left side of the main body 31b to be inserted into the opening by the bottom surface 24 facing the left upper surface 21a, the lower end of the main body right part 31a, and the lower end of the left side of the main body 31b are the same. A substantially vertical cross-sectional shape in the vehicle width direction is formed into a substantially convex shape with the main body central portion 31c inserted into the vehicle.

  A flat cable 60 (to be described later) is connected to the main body right portion 31a, and a fixed-side lead-out portion 33 to which the electric wire 3 is connected is formed so as to be held. Furthermore, a lead-out side fixing portion 34 that fixes one end of the flat cable 60 in the housing space X of the case 20 is formed in the main body right portion 31a in a rearward direction.

A screw penetration part 35 through which the thread of the screw 6 passes is formed in the vehicle body left direction 31b in the vehicle width direction.
In the main body central portion 31c, a screwed body insertion portion 36 for allowing insertion of a screwed body (not shown) for fixing the front cover portion 30 to the case 20 by screwing with the screw 6 is provided. It is formed so as to open in a substantially rectangular shape.

  The front fixing portion 32 extends forward from a substantially center of the front cover main body 31 in the vehicle width direction, and extends in a forward direction from a curved portion 32a that curves downward and a lower end of the curved portion 32a. It is formed by the front fixing part 32b that comes out and abuts against the floor surface 1. Further, a screw hole portion 37 through which a screw (not shown) for fixing the front cover portion 30 to the vehicle body passes is formed in the approximate center of the front portion fixing portion 32b.

  By inserting the front cover portion 30 into the front end of the case 20, a bottom groove opening 27 is formed at the front end of the case 20 as shown in FIG.

  As shown in FIG. 7, the rear cover portion 40 is formed in the front direction from the rear cover main body portion 41 and the rear cover main body portion 41 that is inserted and closed in the rear end of the case 20 from the rear direction. The rear portion fixing portion 42 is fixed to the surface 1.

  The rear cover main body 41 is formed by a main body right part 41 a, a main body left part 41 b, and a main body central part 41 c, similar to the front cover main body part 31, but the case 20 with respect to the front cover main body part 31. The difference is that the bottom groove portion 26 is formed in a shape for closing. In addition, the main body right part 41a of the rear cover main body part 41 is not formed in a shape that holds the fixed side lead-out part 33 like the right insertion part 31a of the front cover main body part 31.

  The rear fixing portion 42 is formed in a shape that extends rearward from the lower end of the rear cover main body portion 41 at the approximate center in the vehicle width direction and abuts against the floor surface 1. Further, a screw hole portion 47 through which a screw (not shown) for fixing the rear cover portion 40 to the vehicle body passes is formed in the approximate center of the rear portion fixing portion 42.

  3 and 8, the slider 50 includes a sheet fixing portion 51 that is fixed to the slide sheet 2, a movable side derivation portion 52 that extends downward from the sheet fixing portion 51, and a lower end of the movable side derivation portion 52. The cable fixing portion 53 is formed.

  The seat fixing portion 51 is formed in a substantially flat plate shape that is long in the vehicle width direction, and the plate surface is arranged substantially vertically. And the screw surface 51a which the screw (illustration omitted) which fixes to the slide seat 2 penetrates is formed in the plate | board surface of the sheet | seat fixing | fixed part 51 1 each on either side at predetermined intervals in the vehicle width direction. .

  The movable side lead-out portion 52 has a substantially horizontal cross-sectional shape that is substantially rectangular, and extends downward from a substantially center of the seat fixing portion 51 in the vehicle width direction, then bends obliquely rearward, and further extends downward. It is formed in the shape.

  The cable fixing portion 53 is formed by combining a substantially rectangular shape that is long in the front-rear direction in a plan view and a semicircle that protrudes rearward from the rear edge of the substantially rectangular shape and has a predetermined thickness in the vertical direction. ing. And the cable fixing | fixed part 53 is integrally formed with the lower end of the movable side derivation | leading-out part 52 in the vehicle width direction approximate center and the front part.

  As shown in FIG. 3, the slider 50 is accommodated in the case 20 so that the movable side lead-out portion 52 penetrates the slit opening 25. Further, in the housing space X of the case 20, the slider 50 is hooked to the slide sheet 2 in a state where the cable fixing portion 53 is not in contact with any of the upper surface 21, the bottom surface 24, and the flat cable 60 described later. Yes.

  In this way, the slider 50 is fixed to the slide sheet 2 in a state where it is hung down, so that the slide operation of the slide sheet 2 can be followed. The housing space X of the case 20 electrically connects the vehicle body side and the slide seat 2 side, and houses a flat cable 60 that slides following the sliding operation.

  Specifically, as shown in FIG. 9, the flat cable 60 has a surplus length that can follow the sliding motion of the slide sheet 2 in the housing space X of the case 20 and is U-turned in the front-rear direction. It is routed.

  The flat cable 60 is a flexible band-shaped transmission line in which a plurality of flat conductors are arranged in parallel at a predetermined pitch in the width direction of the flat cable 60 and covered with an insulating cover.

  As shown in FIG. 5, one end of the flat cable 60 is connected to the fixed side lead-out portion 33 with the width direction being substantially vertical, and is fixed to the lead-out side fixing portion 34 with the adhesive tape 5. Then, as shown in FIG. 9, the flat cable 60 is flat in the receiving space X, with the fixed-side straight portion 61 and the fixed-side straight portion 61 being flattened in the rear direction with the width direction being substantially vertical. A reversing portion 62 that is reversed in a substantially U shape in the thickness direction of the cable 60, that is, the vehicle width direction, and a movable-side straight portion 63 that is linearly arranged from the tip of the reversing portion 62 toward the front are configured.

  As shown in FIG. 9, in the state where the slide sheet 2 is located at the foremost end, the flat cable 60 has the fixed side linear portion 61 and the movable side linear portion 63 having substantially the same length, and the inversion portion. 62 is located at the approximate center of the case 20 in the front-rear direction.

  Further, in the housing space X of the case 20, the fixed-side straight portion 61 and the movable-side straight portion 63 of the flat cable 60 are arranged in the front-rear direction of the right side surface 22 and the left side surface 23 as shown in FIGS. 3 and 4. It is mounted on the bottom surface 24 so as to follow. That is, on the bottom surface 24, when a portion where the fixed side linear portion 61 and the movable side linear portion 63 are in sliding contact with each other is a sliding portion T, the sliding portion T is located on the outer side in the vehicle width direction from the slit opening 25. ing.

  On the other hand, the tip of the movable side linear portion 63 that is the other end of the flat cable 60 is fixed to the left side surface of the cable fixing portion 53 of the slider 50 with the adhesive tape 5 as shown in FIG.

  The flat cable 60 configures a cable lead-out portion 64 that is routed forward along the side surface of the cable fixing portion 53 and then led upward along the front surface of the movable-side lead-out portion 52. The cable lead-out portion 64 is fixed to the appropriate position on the front surface of the movable side lead-out portion 52 with the adhesive tape 5. Further, the tip of the cable lead-out portion 64 is connected to the sensor 4.

  Next, an operation in which the slider 50 and the flat cable 60 freely move in the sliding direction following the sliding operation of the slide sheet 2 will be described with reference to FIGS. 1 and 9.

  As shown in FIG. 1, when the slide sheet 2 located at the foremost end moves backward, the slider 50 fixed to the slide sheet 2 moves backward following the slide operation of the slide sheet 2.

  At this time, the movable-side lead-out portion 52 of the slider 50 moves rearward along the slit opening 25, and the slide fixing portion 53 of the slider 50 moves through the accommodation space X of the case 20 without delaying the operation of the slide sheet 2. Move backwards.

  Further, when the cable fixing portion 53 moves in the rearward direction, as shown in FIG. 9, a force pushing the cable fixing portion 53 in the rearward direction is applied to the movable side linear portion 63 of the flat cable 60. As a result, the reversing portion 62 of the flat cable 60 moves backward while feeding the movable-side straight portion 63 having a length corresponding to the amount of movement of the cable fixing portion 53 to the fixed-side straight portion 61.

  When the slide sheet 2 moves to the rearmost end, as shown in FIG. 9, the flat cable 60 has the reversing portion 62 close to the rear end of the cable fixing portion 53 and the length of the fixed linear portion 61 slides. The amount of movement of the seat 2 is substantially the same, and the length balance between the fixed-side straight portion 61 and the movable-side straight portion 63 changes.

  On the other hand, when the slide sheet 2 located at the rearmost end is moved in the forward direction, the movable side linear portion 63 of the flat cable 60 in the housing space X of the case 20 is moved forward by the cable fixing portion 53 of the slider 50. A pulling force is added. Thereby, the inversion part 62 of the flat cable 60 moves in the forward direction while feeding the fixed-side straight part 61 having a length corresponding to the movement amount of the cable fixing part 53 to the movable-side straight part 63.

  The power supply apparatus 10 having the above-described configuration capable of realizing the operation as described above can be reduced in size and weight, and can be more reliably maintained in electrical connection.

  Specifically, by using the flat cable 60 for the electrical connection between the vehicle body side and the slide seat 2 side, it is possible to reduce the weight of the electric wires bundled with the conductors. Moreover, the flat cable 60 can make a bending radius small with respect to the electric wire which bundled the conductor. That is, the width in the vehicle width direction of the case 20 that accommodates the flat cable 60 inverted in a substantially U shape can be further reduced.

  Furthermore, by arranging the width direction of the flat cable 60 substantially perpendicular to the bottom surface 24, the contact area between the flat cable 60 and the bottom surface 24 can be extremely reduced. Thereby, it can suppress that the flat cable 60 bites the foreign material which penetrate | invaded, and the damage and disconnection of the flat cable 60 can be prevented.

  In addition, the power supply device 10 can improve the case rigidity without special reinforcement by downsizing the case 20. And since the electric power feeder 10 can implement | achieve weight reduction by size reduction, energy saving and cost reduction can be aimed at.

  Accordingly, the power supply device 10 can be reduced in size and weight, and can more reliably maintain an electrical connection.

  In addition, the slider 50 is configured by the cable fixing portion 53, the movable-side derivation portion 52 that fixes the cable derivation portion 64 of the flat cable 60, and the sheet fixing portion 51, so that the slide operation of the slide sheet 2 can be followed. The flat cable 60 having a surplus length can be led out of the case 20 without being directly fixed to the slide sheet 2.

  Furthermore, by fixing the flat cable 60 to the movable side lead-out portion 52, it is possible to prevent the excess flat cable 60 from being exposed to the outside of the case 20 due to the sliding operation. Thereby, there is no possibility that an occupant gets a foot on the flat cable 60, and damage or disconnection of the flat cable 60 outside the case 20 can be prevented.

  In addition, since the cable lead-out portion 64 of the flat cable 60 is fixed to the front surface of the movable-side lead-out portion 52, there is no possibility that the cable lead-out portion 64 slides with the slit opening 25 of the case 20 or the like. Thereby, damage and disconnection of the flat cable 60 can be prevented.

  Therefore, the power supply apparatus 10 can more reliably maintain an electrical connection even if the power supply apparatus 10 is reduced in size and weight.

  Further, by housing the cable fixing portion 53 in the housing space X of the case 20 in a state where the cable fixing portion 53 is hooked from the slide sheet 2, the cable fixing portion 53 is connected to the inner surface of the case 20 and the flat cable in the housing space X of the case 20. 60 can be accommodated without support. That is, the cable fixing portion 53 can be housed in the housing space X of the case 20 in a suspended state from the slide sheet 2. Thereby, even if the cable fixing portion 53 follows the sliding operation of the slide sheet 2 and moves in the sliding direction, there is no possibility of sliding with the fixing-side straight portion 61 of the flat cable 60. Disconnection can be prevented.

  Furthermore, since the cable fixing portion 53 does not contact the inner surface of the case 20 and the flat cable 60 in the housing space X of the case 20, the resistance applied to the sliding operation can be extremely reduced. That is, it is not necessary to firmly form the sheet fixing portion 51 and the movable-side derivation portion 52 constituting the slider 50 that moves in the sliding direction following the slide sheet 2, and the slider 50 can be reduced in size and weight. it can.

  In addition, even if a foreign matter enters the housing space X of the case 20, there is an appropriate gap between the inner surface of the case 20 and the flat cable 60 and the cable fixing portion 53, so that the cable fixing portion 53 bites the foreign matter. There is no risk of moving in the sliding direction. That is, the cable fixing portion 53 can smoothly follow the sliding operation of the slide sheet 2.

In the unlikely event that the slide sheet 2 slides, the cable fixing portion 53 does not interfere with the inner surface of the case 20 even if the slider 50 tilts in the sliding direction.
Therefore, the power feeding device 10 can be reduced in size and weight, and can realize a smooth sliding operation while more reliably maintaining an electrical connection.

Further, by forming the slit opening 25 on the upper surface 21, the aperture ratio on the upper surface 21 can be minimized. Further, the slit opening 25 can prevent foreign matter from entering the housing space X of the case 20 from the upper surface 21 without hindering the sliding operation of the slide sheet 2 and the slider 50.
Therefore, the power supply apparatus 10 can more reliably maintain an electrical connection even if the power supply apparatus 10 is reduced in size and weight.

Further, on the bottom surface 24 of the case 20, the sliding portion T on which the movable side straight portion 63 and the fixed side straight portion 61 of the flat cable 60 slide is moved from the position facing the slit opening 25 to the vehicle width of the case 20. By providing the outer side in the direction, it is possible to prevent a foreign matter that has entered from the slit opening 25 from directly attaching to the sliding portion T. That is, it is possible to prevent the flat cable 60 from being damaged or disconnected by biting foreign matter.
Therefore, the power supply apparatus 10 can more reliably maintain an electrical connection even if the power supply apparatus 10 is reduced in size and weight.

  Further, by forming the bottom groove portion 26 on the bottom surface 24, foreign matter that has entered from the slit opening portion 25 can be received by the bottom groove portion 26. Furthermore, since the bottom groove portion 26 is formed in a substantially concave shape, the received foreign matter can be prevented from jumping out easily. Thereby, since it becomes difficult for a foreign material to adhere on the bottom face 24, damage and disconnection of the flat cable 60 can be prevented more reliably.

Even if foreign matter adheres to the bottom surface 24, the foreign matter on the bottom surface 24 can be wiped off to the bottom groove portion 26 when the reversing portion 62 of the flat cable 60 slides in the sliding direction.
Therefore, the power supply apparatus 10 can more reliably maintain an electrical connection even if the power supply apparatus 10 is reduced in size and weight.

  Further, by providing the case 20 with the front cover portion 30 and the rear cover portion 40, it is possible to prevent foreign matter from entering the housing space X of the case 20 and to discharge foreign matter received by the bottom groove portion 26. Can do.

  Specifically, the rear cover portion 40 can prevent foreign matter from entering the housing space X of the case 20 from the opening at the rear end of the case 20 fixed to the floor 1 that is lowered forward.

  On the other hand, the front cover portion 30 can form a bottom groove opening 27 by the bottom groove portion 26 at the front end of the case 20. Since the front end is relatively low with respect to the rear end of the case 20, the foreign matter received by the bottom groove 26 can be discharged from the bottom groove opening 27.

That is, in the case 20 that is disposed relatively downward, the front cover part 30 and the rear cover part 40 are provided, so that foreign matter can be prevented from entering the housing space X of the case 20 and has entered. Foreign matter can be discharged smoothly.
Therefore, the power supply apparatus 10 can more reliably maintain an electrical connection even if the power supply apparatus 10 is reduced in size and weight.

  Further, since the front fixing portion 32 and the rear fixing portion 42 are formed in the sliding direction of the slide sheet 2, the resistance due to the sliding operation of the slide sheet 2 transmitted to the case 20 can be reliably received. Furthermore, since the width of the case 20 in the vehicle width direction can be suppressed, the case 20 can be reduced in size.

Further, by accommodating the cable fixing portion 53 in a suspended state in the accommodation space X of the case 20, resistance due to the sliding operation is further reduced, so that the number of fixing points with the vehicle body can be reduced. That is, the power feeding device 10 can minimize the number of fixing points to be fixed to the vehicle body. Thereby, the electric power feeder 10 can reduce a number of parts, and can achieve further weight reduction and cost reduction.
Therefore, the power supply device 10 can be further reduced in size and weight while reliably receiving resistance due to the sliding operation.

  Further, since the flat cable 60 is connected to the sensor 4, it can be configured with about two conductors. That is, since the width direction of the flat cable 60 can be reduced, the case 20 can be downsized also in the vertical direction.

  In the present embodiment, the slide direction of the slide seat 2 is the front-rear direction of the vehicle, but may be the left-right direction of the vehicle.

  Further, although the power supply device 10 is provided separately from the slide mechanism of the slide sheet 2, the power supply device 10 may be configured integrally with the slide mechanism of the slide sheet 2. For example, it may be housed and fixed on the slide rail of the slide mechanism.

  Further, although the case 20 is fixed to the floor surface 1 and the slider 50 is fixed to the slide sheet 2, the slider 50 may be fixed to the floor surface 1 and the case 20 may be fixed to the bottom of the slide sheet 2.

  In addition, although the power supply device 10 includes one slider 50 with respect to the case 20, the power supply device 10 includes two or more sliders 50 and the number of flat cables 60 corresponding to the slider 50 in the case 20. Also good. As a result, it is possible to electrically connect the second and third rows of the slide seats 2 and the vehicle body side with a single power supply device 10.

  Moreover, although the flat cable 60 was fixed with the adhesive tape 5, you may form a latching | locking part in the binding band or the cable fixing | fixed part 53, and the derivation | leading-side fixing | fixed part 34, without being limited to this.

  Further, the flat cable 60 may be surrounded by a flexible exterior material. For example, you may enclose with the resin-made exterior material formed in mesh shape, or the resin-made exterior material which has flexibility. Thereby, it is possible to more reliably suppress the flat cable 60 from being damaged or disconnected due to sliding or foreign matters caused by the sliding operation.

In correspondence between the configuration of the present invention and the above-described embodiment,
The power supply device for a slide sheet of the present invention corresponds to the power supply device 10 of the embodiment,
Similarly,
The slide direction corresponds to the front-rear direction,
The base surface corresponds to the bottom surface 24,
The standing surface corresponds to the right side surface 22 and the left side surface 23,
The first straight portion corresponds to the movable-side straight portion 63,
The second straight portion corresponds to the fixed-side straight portion 61,
The derivation unit corresponds to the movable side derivation unit 52,
The facing surface corresponds to the upper surface 21,
The case fixing part corresponds to the front fixing part 32 and the rear fixing part 42.
The present invention is not limited only to the configuration of the above-described embodiment, and many embodiments can be obtained.

  The present invention can be applied to an apparatus in which both are electrically connected to supply power in a mechanism that slides relative to each other.

2 ... slide sheet 10 ... power feeding device 20 ... case 21 ... upper surface 22 ... right side surface 23 ... left side surface 24 ... bottom surface 25 ... slit opening 26 ... bottom groove portion 30 ... front cover portion 32 ... front fixing portion 40 ... rear cover Part 42 ... Front fixing part 50 ... Slider 51 ... Sheet fixing part 52 ... Movable side lead-out part 53 ... Cable fixing part 60 ... Flat cable 61 ... Fixed side linear part 62 ... Reversing part 63 ... Movable side linear part T ... Sliding Part

Claims (5)

A power supply device for a slide sheet that electrically connects and supplies power to a vehicle body side of a vehicle and a slide seat side that is slidable in a predetermined direction with respect to the vehicle body,
Two substantially flat base surfaces that are arranged in parallel to the slide direction of the slide sheet and that have at least the slide direction as a longitudinal direction, and substantially flat plates that are erected from both lateral ends of the base surface Standing surfaces, facing surfaces formed at the tips of these standing surfaces and facing the base surface, and extending in the longitudinal direction at positions between these facing surfaces and facing substantially the center in the short side direction of the base surface A case with a slit-like slit opening;
And electrically connecting the slide seat side and the vehicle body side, with the width direction being substantially perpendicular to the base surface, at least one strip-shaped flat cable housed in the case,
The case is accommodated inside the case so as to be able to follow the sliding movement of the slide sheet, and includes a cable fixing portion that fixes one end of the flat cable,
The cable fixing portion is wider than the slit opening of the case, and has a size having a gap between the case and the case,
On the upper surface of the cable fixing portion, a lead-out portion that passes through the slit opening is erected so that the cable fixing portion is caught from the slide seat, and the cable fixing portion, the lead-out portion, and the case, Forming a gap between
One end of the flat cable is fixed to the side surface of the cable fixing portion,
A first linear portion in which the flat cable is arranged substantially linearly in the longitudinal direction from the cable fixing portion, and an inversion portion that is inverted in a substantially U shape in the thickness direction of the flat cable from the tip of the first linear portion. And a power supply device for a slide sheet that is slidably arranged with a surplus length capable of following the slide operation, with a second linear portion arranged substantially linearly in the longitudinal direction from the tip of the reversing portion. The case is fixed with the slit opening facing upward,
The position facing the facing surface on the outer side in the short direction on the base surface of the case is a sliding portion where the first straight portion and the second straight portion of the flat cable slide,
The power supply device for a slide sheet according to claim 1, wherein a substantially concave bottom groove portion is provided in a portion of the base surface facing the slit opening. 3. The power supply for a slide sheet according to claim 1, wherein a terminal at one end of the flat cable is led out of the case along one of the side surfaces of the lead-out portion facing in the longitudinal direction. apparatus. The longitudinal direction of the case is the front-rear direction, and is disposed relatively forward and downward,
A rear cover portion for closing an opening at a rear end of the case;
The front cover part which closes the opening by the said base surface, the said opposing surface, and two said standing surfaces in the front-end edge of the said case is provided as described in any one of Claims 1-3. Power supply device for slide sheet. At the end in the longitudinal direction in the front cover part and the rear cover part,
The slide seat power feeding device according to claim 4, wherein a case fixing portion for fixing the case to the vehicle body is integrally formed.

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