JP2019024279A - Power supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a power feeding device capable of suppressing deformation of a rail due to a stepping load. SOLUTION: A power feeding device 1 mounted on an automobile and supplying power to a slide sheet from a floor panel 7 side includes a wire harness 2, a rail 3, and a slider 4. The rail 3 includes a bottom wall 30, a first side wall 31, a second side wall 32, a lower wall 34 facing the floor panel 7 at intervals, a third side wall 33, and an upper wall, which are overlapped with the floor panel 7. It includes 35, an inner wall 36, and a support portion 37 that hangs down from the lower wall 34 and comes into contact with the floor panel 7. When a stepping load is applied to the upper wall 35, the support portion 37 suppresses the deformation of the rail 3. [Selection diagram] Fig. 3

Description

  The present invention relates to a power feeding device that feeds power to a slide seat from a vehicle body side.

  2. Description of the Related Art Conventionally, in a vehicle provided with a slide seat, various power supply devices for routing a wire harness from the floor panel side to the slide seat side in order to supply power to an electronic device such as a seating sensor attached to the slide seat. Have been used (see, for example, Patent Document 1).

  FIG. 6 is a cross-sectional view of the power feeding device disclosed in Patent Document 1. The power supply device 301 includes a wire harness in which an electric wire 305 is covered with a corrugated tube 304, a rail 307 that extends along the slide direction of the slide sheet, and is attached to the floor panel 302. The wire harness is held on the rail 307. The slider 310 is slidably attached, and the surplus length accommodating portion 308 that accommodates the surplus length portion of the wire harness drawn from one end of the rail 307 is provided.

  The slide seat is supported by a seat rail slider 311 shown in FIG. The seat rail slider 311 is slidably attached to a seat rail 306 attached to the floor panel 302. The seat rail 306 and the rail 307 are arranged in parallel.

  The slider 310 includes a holding portion 330 that holds a wire harness that is passed through a space 379 surrounded by the lower wall 371, the side wall 372, the upper wall 373, and the inner wall 374 of the rail 307, and the wire harness that extends from the slit 307 to the outside of the rail 307. And a slider main body 340 that leads to the slide sheet.

JP 2010-193599 A

  In the power supply device 301 described above, the upper wall 373 of the rail 307 may be stepped on in the direction of arrow F by the occupant. Further, since the lower wall 371 is spaced from the floor panel 302, the rail 307 may be deformed when it is stepped on by an occupant. Further, the deformation of the rail 307 may cause the slider 310 to be damaged, or the slider 310 may not be able to slide smoothly in the rail 307.

  Then, an object of this invention is to provide the electric power feeder which can suppress the deformation | transformation of the rail by stepping load.

  In order to solve the above-described problems, a power supply device according to the present invention includes a wire harness for supplying power to a seat slidable with respect to the vehicle body from the vehicle body side, and extends along the sliding direction of the seat, and is attached to the vehicle body. A rail, and a slider that holds the wire harness and is slidably attached to the rail. The rail is erected from a bottom wall that is stacked on the vehicle body and from one end in the width direction of the bottom wall. A first side wall, a second side wall erected from the other end of the bottom wall in the width direction, a lower wall extending from the upper end of the second side wall to the opposite side of the first side wall, and the lower wall A third side wall erected from an end away from the second side wall; an upper wall extending from the upper end of the third side wall toward the first side wall; and hanging from the lower wall to contact the vehicle body A support portion, the lower wall and the first Wherein the wire harness in a space surrounded by the side walls and the top wall is passed.

  According to the present invention, since the rail includes the support portion directly below the upper wall, the rail can be prevented from being deformed when a stepping load is applied to the upper wall.

It is a perspective view of the electric power feeder concerning one Embodiment of this invention. It is sectional drawing along the AA line in FIG. FIG. 3 is an enlarged view of a main part of FIG. 2. It is a perspective view of the slider of FIG. It is a perspective view of the slider and protector of FIG. It is sectional drawing of the conventional electric power feeder.

  A power supply apparatus according to an embodiment of the present invention will be described with reference to FIGS.

  1 and 2 is an electronic device that is mounted on a vehicle and mounted on the seat 8 by wiring the wire harness 2 to the seat 8 from the floor panel (corresponding to "vehicle body") 7 side. It is a device that supplies power to. In the present embodiment, the wire harness 2 performs not only feeding but also signal transmission. 1-3, the arrow X is parallel to the longitudinal direction of the automobile, the arrow Y is parallel to the vertical direction of the automobile, and the arrow Z is parallel to the width direction of the automobile.

  The seat 8 is seated by a passenger of the automobile and is supported by a seat rail slider 10. The seat rail slider 10 is slidably attached to a seat rail 9 attached to the floor panel 7. Thus, the seat 8 is slidable in the arrow X direction with respect to the floor panel 7.

  The power feeding device 1 includes a wire harness 2, a rail 3 attached to the floor panel 7, a slider 4 that holds the wire harness 2 and is slidably attached to the rail 3, and a protector 5 that fixes the slider 4 to the seat 8. And a surplus length accommodating portion 6 that accommodates a surplus length portion of the wire harness 2 pulled out from one end of the rail 3.

  The wire harness 2 includes a plurality of electric wires 21, a corrugated tube 23 covering these electric wires 21, and connectors (not shown) attached to both ends of the electric wires 21. The corrugated tube 23 does not cover all of the electric wire 21 from one end to the other end, but covers a portion accommodated in the rail 3 and a portion accommodated in the extra length accommodating portion 6. That is, the electric wire 21 is pulled out from one end portion of the corrugated tube 23 in a holding portion 41 (to be described later) of the slider 4, passed through the slider 4, and led to the sheet 8 side.

  The rail 3 extends along the sliding direction of the seat 8, that is, the direction of the arrow X, and the cross-sectional shape is equally formed from one end to the other end of the long method. The rail 3 is disposed in parallel with the seat rail 9. As shown in FIG. 3, the rail 3 includes a bottom wall 30, a first side wall 31, a folded portion 38, a second side wall 32, a lower wall 34, a third side wall 33, an upper wall 35, An inner wall 36 and a support portion 37 are provided.

  The bottom wall 30 is formed in a flat plate shape and overlaps the floor panel 7.

  The first side wall 31 is erected in the arrow Y direction from one end of the bottom wall 30 in the width direction. The first side wall 31 is provided with a concave guide groove 39 on the opposite side to the second side wall 32. In the guide groove 39, later-described protrusions 49a and 49b of the slider 4 are slidably positioned.

  The folded portion 38 is bent at a substantially right angle on the side opposite to the bottom wall 30 at the upper end portion of the first side wall 31.

  The second side wall 32 is erected in the arrow Y direction from the other end of the bottom wall 30 in the width direction.

  The lower wall 34 is bent at a substantially right angle on the side opposite to the first side wall 31 at the upper end portion of the second side wall 32. The lower wall 34 faces the floor panel 7 with a gap.

  The third side wall 33 is erected in the direction of arrow Y from the end of the lower wall 34 away from the second side wall 32.

  The upper wall 35 is bent at a substantially right angle toward the first side wall 31 at the upper end portion of the third side wall 33.

  The inner wall 36 is bent at a substantially right angle toward the bottom wall 30 at the end of the upper wall 35 away from the third side wall 33. The inner wall 36 is located between the first side wall 31 and the third side wall 33. The lower end of the inner wall 36 is spaced from the bottom wall 30. The lower end portion of the inner wall 36 is located above the lower wall 34.

  The support portion 37 hangs from an end portion of the lower wall 34 away from the second side wall 32. The support part 37 is a wall flush with the third side wall 33. The lower end portion of the support portion 37 contacts the floor panel 7.

  The wire harness 2 is passed through the space 11 surrounded by the lower wall 34, the third side wall 33, the upper wall 35, and the inner wall 36 described above. In the space 11, a later-described holding portion 41 of the slider 4 is disposed. Between the first side wall 31 and the inner wall 36 described above, a slit 12 opened upward, that is, toward the sheet 8 is formed. In the slit 12, a later-described derivation portion 45 of the slider 4 is disposed.

  The slider 4 is made of a synthetic resin, and as shown in FIGS. 4 and 5, the slider 4 is disposed in the holding portion 41 for holding the wire harness 2 passed through the space 11 and the slit 12, and the wire harness 2 is connected to the rail 3. Slide out into the guide groove 39, the lead-out part 45 leading out, the connecting part 43 connecting the holding part 41 and the lower part of the lead-out part 45, the wire fixing part 47 extending from the upper end of the lead-out part 45 in a rod shape Protrusions 49a and 49b positioned freely.

  The holding part 41 includes a pair of holding parts 41a and 41b that hold one end part of the corrugated tube 23 therebetween. One clamping portion 41a is provided with a locking projection 42a, and the other clamping portion 41b is provided with a locking hole 42b that engages with the locking projection 42a. By engaging the locking projections 42a and the locking holes 42b, the state where the corrugated tube 23 is sandwiched between the pair of clamping portions 41a and 41b is maintained.

  The derivation | leading-out part 45 is formed in the square cylinder shape, and is extended in the up-down direction as shown in FIG. The lower half part of the lead-out part 45 is arranged in the slit 12, and the upper half part is arranged outside the rail 3 (above the rail 3). The electric wire 21 is passed through the inside of the lead-out part 45.

  As shown in FIG. 3, the connecting portion 43 extends in the width direction of the rail 3, that is, the arrow Z direction, and connects the holding portion 41 and the lower portion of the lead-out portion 45. As shown in FIG. 3, the derivation | leading-out part 45 and the connection part 43 comprise the right angle.

  The electric wire fixing portion 47 is along the electric wire 21 drawn out of the lead-out portion 45. Further, the electric wire 21 is fixed to the electric wire fixing portion 47 by a binding band or the like.

  The protrusions 49 a and 49 b protrude from the lower part of the lead-out part 45 to the side opposite to the connecting part 43 and the holding part 41. In addition, the protruding portions 49a and 49b are provided at both ends of the derivation portion 45 in the sliding direction (in the direction of arrow X in FIG. 4).

  By positioning the protrusions 49a and 49b in the guide groove 39, the inclination of the slider 4 is restricted, and rattling with respect to the rail 3 is suppressed. As a result, the slider can go straight smoothly without being caught. In this embodiment, in order to reduce the rattling of the slider 4, the protruding portions 49 a and 49 b are provided at both ends in the sliding direction of the lead-out portion 45, but at least one protruding portion is provided. Just do it.

  The wire harness 2 is drawn into the space 11 from one end of the rail 3. In the space 11, one end portion of the corrugated tube 23 is held by the holding portion 41 of the slider 4. The electric wire 21 drawn out from the one end portion of the corrugated tube 23 in the holding portion 41 is led out of the rail 3 through the inside of the connecting portion 43 and the lead-out portion 45 and led to the seat 8 side. The end of the electric wire 21 of the wire harness 2 guided to the seat 8 side is connected to the seat side connector.

  The protector 5 is made of synthetic resin, and includes a frame portion 51 that positions the lead-out portion 45 of the slider 4 on the inside, and a bracket 53 that is bolted to the seat 8. The lead-out portion 45 is positioned in the frame portion 51 and the bracket 53 is bolted to the seat 8, so that the slider 4 and the wire harness 2 slide in conjunction with the seat 8.

  The surplus length accommodating portion 6 accommodates the surplus length portion of the wire harness 2 pulled out from one end of the rail 3 in a U-shaped folded state. Further, the end of the wire harness 2 on the side opposite to the seat 8 side is pulled out from the surplus length accommodating portion 6 and connected to the floor side connector.

  According to the power supply device 1 configured as described above, since the rail 3 includes the support portion 37 immediately below the upper wall 35, the rail 3 is prevented from being deformed when a stepping load is applied to the upper wall 35. it can. Further, since the deformation of the rail 3 can be suppressed in this way, the slider 4 can be prevented from being damaged and the slider 4 can be reliably slid.

  The above-described embodiment is merely a representative form of the present invention, and the present invention is not limited to this embodiment. That is, various modifications can be made without departing from the scope of the present invention. Of course, such modifications are included in the scope of the present invention as long as they have the configuration of the present invention.

DESCRIPTION OF SYMBOLS 1 Electric power feeder 2 Wire harness 3 Rail 4 Slider 7 Floor panel (vehicle body)
8 seat 11 space 30 bottom wall 31 first side wall 32 second side wall 33 third side wall 34 lower wall 35 upper wall 37 support part

Claims (3)

A wire harness for supplying power to a seat that is slidable with respect to the vehicle body from the vehicle body side, a rail that extends along the sliding direction of the seat, is attached to the vehicle body, holds the wire harness, and slides on the rail A slider that can be freely attached,
A bottom wall overlaid on the vehicle body, a first side wall erected from one end in the width direction of the bottom wall, a second side wall erected from the other end in the width direction of the bottom wall; A lower wall extending from the upper end of the second side wall to the opposite side of the first side wall, a third side wall standing from an end of the lower wall away from the second side wall, and an upper end of the third side wall An upper wall extending from the portion toward the first side wall, and a support portion that hangs down from the lower wall and contacts the vehicle body,
The wire harness is passed through a space surrounded by the lower wall, the third side wall, and the upper wall. The slider is disposed between a holding portion that holds the wire harness that is passed through the space, the first side wall, and the upper wall, and extends in a vertical direction to lead the wire harness out of the rail. A lead-out part, a connecting part that connects the holding part and the lower part of the lead-out part, and a protruding part that protrudes from the lead-out part on the opposite side of the connecting part and the holding part,
The first side wall is provided with a concave guide groove on the opposite side to the second side wall,
The power feeding device according to claim 1, wherein the protruding portion is slidably positioned in the guide groove. The power feeding device according to claim 2, wherein the projecting portions are provided at both end portions of the derivation portion in the sliding direction.

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