US20200223380A1 - Wire harness for seats - Google Patents
Wire harness for seats Download PDFInfo
- Publication number
- US20200223380A1 US20200223380A1 US16/706,611 US201916706611A US2020223380A1 US 20200223380 A1 US20200223380 A1 US 20200223380A1 US 201916706611 A US201916706611 A US 201916706611A US 2020223380 A1 US2020223380 A1 US 2020223380A1
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- United States
- Prior art keywords
- seat
- wiring material
- relay device
- along
- rotation shaft
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 99
- 238000004804 winding Methods 0.000 claims abstract description 43
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000005452 bending Methods 0.000 description 16
- 239000004020 conductor Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/06—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable slidable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
- B60N2/0244—Non-manual adjustments, e.g. with electrical operation with logic circuits
- B60N2/0264—Non-manual adjustments, e.g. with electrical operation with logic circuits characterised by the type of electrical connection, e.g. wiring, plugs or USB
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/14—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable rotatable, e.g. to permit easy access
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/0207—Wire harnesses
- B60R16/0215—Protecting, fastening and routing means therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/027—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems between relatively movable parts of the vehicle, e.g. between steering wheel and column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/0224—Non-manual adjustments, e.g. with electrical operation
Definitions
- the present invention relates to a wire harness for seats.
- Japanese Patent Application Laid-open No. 2013-023069 discloses a power supply device for slide seats that supplies power by electrically connecting the side of a body of a vehicle with the side of a slide seat slidably operable in a certain direction with respect to the body.
- the power supply device for slide seats disclosed in the above-described Japanese Patent Application Laid-open No. 2013-023069 is desired to have a configuration that allows more variety of seat arrangements, for example.
- the present invention has been made considering the above-described circumstances, and has an object of providing a wire harness for seats that can appropriately supply power to the seats.
- a wire harness for seats includes a relay device provided to a rotation shaft of a seat disposed on a vehicle floor; a first wiring material having one end electrically connected with the relay device; a winding device installed on the vehicle floor side, and connected with another end of the first wiring material so as to electrically connect the first wiring material with a power supply on the vehicle floor side, the winding device unwinding and winding the first wiring material along a sliding direction of the seat in association with slide movement of the seat along the sliding direction and rotation of the seat with the rotation shaft serving as a rotation center; and a second wiring material provided to the seat and having one end electrically connected with the first wiring material via the relay device and another end electrically connected with electrical equipment provided to the seat.
- the wire harness for seats it is possible to further include a guide provided to an outer peripheral surface of the rotation shaft, the guide allowing the other end of the first wiring material to be wound along the rotating direction in association with rotation of the seat in a rotating direction with the rotation shaft serving as a rotation center.
- FIG. 1 is a schematic side view schematically illustrating a configuration of a seat to which a wire harness for seats according to an embodiment is applied;
- FIG. 2 is a schematic plan view schematically illustrating the configuration of the seat to which the wire harness for seats according to the embodiment is applied;
- FIG. 3 is a schematic perspective view schematically illustrating the configuration of the seat to which the wire harness for seats according to the embodiment is applied;
- FIG. 4 is a schematic perspective view illustrating an example of an operation of the seat to which the wire harness for seats according to the embodiment is applied;
- FIG. 5 is a schematic plan view illustrating the example of the operation of the seat to which the wire harness for seats according to the embodiment is applied.
- FIG. 6 is a partial perspective view including a guide of the wire harness for seats according to the embodiment.
- FIGS. 1, 2, and 5 which will be explained later, illustrate only part of a vehicle floor with alternate long and two short dashes line by omitting details.
- FIG. 1 is a diagram illustrating a seat base with alternate long and two short dashes line by omitting details.
- illustrating the seat base is entirely omitted.
- FIGS. 2 and 5 illustrate only part of a seat rail with alternate long and two short dashes line by omitting details.
- illustrating the seat rail is entirely omitted.
- each drawing omits parts of the seat other than important parts, as appropriate.
- the first direction is referred to as “a front-back direction X”, the second direction as “a width direction Y”, and the third direction as “a height direction Z”.
- the front-back direction X, the width direction Y, and the height direction Z orthogonally intersect one another.
- the front-back direction X and the width direction Y are along a horizontal direction
- the height direction Z is along a vertical direction.
- the front-back direction X typically corresponds to a longitudinal direction of the vehicle into which the wire harness for seats is mounted, and in the embodiment, corresponds to a sliding direction of the seat.
- the width direction Y typically corresponds to the vehicle-width direction of the vehicle into which the wire harness for seats is mounted.
- the height direction Z typically corresponds to the vehicle-height direction of the vehicle into which the wire harness for seats is mounted.
- a wire harness 1 for seats of the present embodiment illustrated in FIGS. 1, 2, and 3 constitutes a part of an onboard power supply system that supplies electric power to a seat 101 disposed on a vehicle floor 100 that constitutes a floor surface of a vehicle.
- the seat 101 is a seat on which an occupant of the vehicle is seated, and is disposed on the vehicle floor 100 so as to be slidably movable along a sliding direction L 1 .
- the sliding direction L 1 of the seat 101 of the present embodiment is a direction along the front-back direction X.
- the seat 101 is supported by a seat rail 103 provided to the vehicle floor 100 with the seat base 102 interposed therebetween.
- the seat base 102 is a base positioned in a lower side of the seat 101 in the height direction Z to support the seat 101 .
- the seat base 102 has a plurality of sliders 104 provided on the lower surface thereof in the height direction Z.
- the seat rail 103 is a guide rail with which the seat 101 is guided while being slidably moved along the front-back direction X.
- the seat rail 103 is provided to the vehicle floor 100 , in an extending manner in the front-back direction X.
- a pair of the seat rails 103 are provided by being spaced apart from each other along the width direction Y.
- Each seat rail 103 has a slider 104 engaged therewith, and guides the slider 104 along the sliding direction L 1 (front-back direction X).
- the seat 101 is supported by the corresponding seat rail 103 with the seat base 102 and the slider 104 interposed therebetween, so as to be slidably movable on the seat rail 103 along the sliding direction L 1 .
- the seat 101 may be electrically slidably movable or may be manually slidably movable.
- the seat 101 of the present embodiment includes a rotation shaft 105 , so as to be rotatable in a rotating direction L 2 around the rotation shaft 105 .
- the rotation shaft 105 is provided to a seat surface 106 included in the seat 101 , onto which an occupant is seated.
- the rotation shaft 105 is formed so as to protrude from a bottom surface of the seat surface 106 in the height direction Z, facing downward in the height direction Z.
- the rotation shaft 105 is formed substantially in a cylindrical shape with the central axis C being along the height direction Z.
- the rotation shaft 105 is supported by the seat base 102 around the central axis C in a rotatable manner. With this configuration, the seat 101 is rotatable with any desired angle in the rotating direction L 2 around the central axis C of the rotation shaft 105 .
- any desired angle in the rotating direction L 2 around the central axis C of the rotation shaft 105 For example,
- FIG. 4 illustrates a state in which the seat 101 is rotated by 90° with respect to the reference position indicated in FIG. 2 .
- FIG. 5 illustrates a state in which the seat 101 is rotated by 180° with respect to the reference position indicated in FIG. 2 .
- the seat 101 may be electrically rotatable or may be manually rotatable.
- the wire harness 1 for seats supplies power to the seat 101 disposed on the vehicle floor 100 , as described above, so as to be slidably movable along the sliding direction L 1 and rotatable in the rotating direction L 2 .
- the wire harness 1 for seats includes a relay device 10 , a first wiring material 20 , a winding device 30 , and a second wiring material 40 .
- the relay device 10 is a device that relays the first wiring material 20 and the second wiring material 40 , in a power feeding line that electrically connects a power supply 107 on the vehicle floor 100 side with electrical equipment 108 provided to the seat 101 .
- the power supply 107 is mounted on a vehicle and serves as a source of supplying power.
- the power supply 107 is constituted of a power generator that generates electric power, a power storage device that stores therein electric power, and the like, for example.
- the power supply 107 is installed on the vehicle floor 100 side, and is configured so as not to move together with the seat 101 .
- the electrical equipment 108 is an electronic device that operates with electric power supplied by the power supply 107 .
- the electrical equipment 108 is constituted of various actuators such as a heater that warms the seat surface 106 and an electric motor that drives various parts, various sensors that detect load and the like, and various switches or the like that receive operation input, for example.
- the electrical equipment 108 is provided to the seat 101 so as to be movable together with the seat 101 .
- the power supply 107 and the electrical equipment 108 are positioned so as to relatively move in association with the slide movement and the rotation of the seat 101 .
- the power feeding line including the relay device 10 supplies electric power between the power supply 107 and the electrical equipment 108 .
- the relay device 10 is provided to the rotation shaft 105 of the seat 101 .
- the relay device 10 is installed on the outer peripheral surface of the lower end of the rotation shaft 105 in the height direction Z. With this configuration, the relay device 10 is slidably movable together with the seat 101 along the sliding direction L 1 , and is integrally rotatable together with the seat 101 in the rotating direction L 2 .
- the respective ends of the first wiring material 20 and the second wiring material 40 are connected to the relay device 10 , so that the relay device 10 relays electrical continuity between the first wiring material 20 and the second wiring material 40 .
- the relay device 10 may be constituted of various types of known connectors, for example.
- the first wiring material 20 which has electrical conductivity, is a wiring material that constitutes part of the power feeding line that electrically connects the power supply 107 on the vehicle floor 100 side with the electrical equipment 108 provided to the seat 101 .
- the first wiring material 20 is laid in a space part on the lower side of the vehicle floor 100 (what is called under the floor) in the height direction Z.
- the first wiring material 20 is constituted of, for example, an electrical wire including a plurality of conductors (core wires) each having electrical conductivity the exterior of which is covered with an insulating cover.
- the first wiring material 20 is constituted of, for example, a flat cable (flexible flat cable (FFC)) formed in a long flat-strip shape.
- FFC flexible flat cable
- the first wiring material 20 extends in the front-back direction X.
- the first wiring material 20 has one end that is electrically connected with the relay device 10 in the front-back direction X.
- the first wiring material 20 has a connector provided to the one end thereof, for example, in the front-back direction X, and is electrically connected with the relay device 10 via the connector.
- the one end thereof in the front-back direction X is slidably movable together with the relay device 10 along the sliding direction L 1 in association with the slide movement and the rotation of the seat 101 , and is integrally rotatable together with the seat 101 in the rotating direction L 2 .
- the first wiring material 20 has the other end that is connected with the winding device 30 in the front-back direction X.
- the winding device 30 is a device that stores therein an excess length of the first wiring material 20 in association with the slide movement and the rotation of the seat 101 .
- the winding device 30 of the present embodiment is installed on the vehicle floor 100 side, and is configured so as not to move together with the seat 101 .
- the winding device 30 is disposed in the space part on the lower side of the vehicle floor 100 in the height direction Z (what is called under the floor).
- the winding device 30 is electrically connected with the power supply 107 via a connector and electrical equipment.
- the winding device 30 is connected with the other end of the first wiring material 20 in the front-back direction X, as described above. With this configuration, the other end of the first wiring material 20 connected with the winding device 30 also does not move together with the seat 101 .
- the winding device 30 electrically connects the first wiring material 20 to the power supply 107 on the vehicle floor 100 side.
- the winding device 30 relays electrical continuity between the first wiring material 20 and other electrical equipment on the power supply 107 side. Furthermore, the winding device 30 unwinds and winds the first wiring material 20 along the sliding direction L 1 , in association with slide movement of the seat 101 along the sliding direction L 1 and rotation of the seat 101 with the rotation shaft 105 serving as a rotation center.
- the winding device 30 unwinds and winds the first wiring material 20 , by being synchronized with the slide movement and the rotation of the seat 101 .
- the first wiring material 20 functions as what is called a spiral cable by being unwound and wound by the winding device 30 .
- the winding device 30 is constituted of various known structures, including a return spring or the like that adds energizing force to a winding side of the first wiring material 20 unwound from the winding device 30 , for example.
- the winding device 30 unwinds and winds the first wiring material 20 along the sliding direction L 1 (front-back direction X) in association with the rotation of the seat 101 . That is, when the seat 101 rotates to one side of the rotating direction L 2 (see FIGS. 4 and 5 , for example) from a predetermined reference position (see FIGS. 2 and 3 , for example), the winding device 30 unwinds the first wiring material 20 along the sliding direction L 1 . In contrast, when the seat 101 rotates so as to return to the reference position (see FIGS. 2 and 3 , for example) from a state in which the seat 101 is rotated to the one side in the rotating direction L 2 (see FIGS. 4 and 5 , for example), the winding device 30 winds the first wiring material 20 along the sliding direction L 1 .
- the winding device 30 unwinds and winds the first wiring material 20 along the sliding direction L 1 (front-back direction X) in association with the slide movement of the seat 101 . That is, when the seat 101 slidably moves to a side in which the seat 101 is approaching the winding device 30 along the sliding direction L 1 (front-back direction X) (for example, moves to a position indicated in FIG. 5 from a position indicated in FIGS. 2 and 3 ), the winding device 30 winds the first wiring material 20 along the sliding direction L 1 . In contrast, when the seat 101 slidably moves to a side in which the seat 101 is separating from the winding device 30 along the sliding direction L 1 (front-back direction X) (for example, moves from a position indicated in FIG. 5 to a position indicated in FIGS. 2 and 3 ), the winding device 30 unwinds the first wiring material 20 along the sliding direction L 1 .
- the second wiring material 40 which has electrical conductivity, is a wiring material that constitutes part of the power feeding line that electrically connects the power supply 107 on the vehicle floor 100 side with the electrical equipment 108 provided to the seat 101 .
- the second wiring material 40 is provided to the seat 101 and laid inside the seat 101 .
- the second wiring material 40 is constituted of, similarly to the first wiring material 20 , an electrical wire including a plurality of conductors (core wires) each having electrical conductivity the exterior of which is covered with an insulating cover, for example.
- the second wiring material 40 may be constituted of a flat cable (FFC), similarly to the first wiring material 20 , and may be constituted of a regular electric wire.
- FFC flat cable
- the second wiring material 40 has one end that is electrically connected with the first wiring material 20 via the relay device 10 .
- the second wiring material 40 has a connector provided to the one end thereof, for example, and is connected with the relay device 10 via the connector, so as to be electrically connected with the first wiring material 20 via the relay device 10 .
- the second wiring material 40 has the other end that is electrically connected with the electrical equipment 108 provided to the seat 101 .
- the second wiring material 40 has an excess length that is invariable regardless of the slide movement and the rotation of the seat 101 . It should be noted that the number of pairs of the second wiring material 40 connected with the relay device 10 and the electrical equipment 108 is not limited to one, and may be two or more.
- a plurality of the second wiring materials 40 may be connected with the relay device 10 .
- the relay device 10 may also serve as a power distributor that distributes electric power to a plurality of pieces of the electrical equipment 108 via the second wiring materials 40 .
- the wire harness 1 for seats of the present embodiment includes, as illustrated in FIGS. 3, 4 , and 6 , a guide 50 that guides an end of the first wiring material 20 on the relay device 10 side as the seat 101 rotates.
- the guide 50 is a part that is provided to an outer peripheral surface of the rotation shaft 105 , and allows an end of the first wiring material 20 on the relay device 10 side to be wound along the rotating direction L 2 , as the seat 101 rotates in the rotating direction L 2 with the rotation shaft 105 serving as the rotation center.
- the guide 50 includes a groove 51 and a bending point holder 52 .
- the groove 51 is a groove formed on the outer peripheral surface of the rotation shaft 105 .
- the groove 51 is annularly formed on the outer peripheral surface of the rotation shaft 105 along the circumferential direction.
- the groove 51 can accommodate and position the first wiring material 20 by allowing the first wiring material 20 to be wound around the outer peripheral surface of the rotation shaft 105 along the rotating direction L 2 .
- the above-described relay device 10 is disposed so as to be laid across the groove 51 .
- the bending point holder 52 is a part with which a bending point of the first wiring material 20 is formed in a certain position on the outer peripheral surface of the rotation shaft 105 and by which the bending point is held.
- the bending point holder 52 is slidably movable together with the seat 101 along the sliding direction L 1 , but is not rotatable together with the rotation shaft 105 of the seat 101 .
- the bending point holder 52 is disposed in a certain position on the outer peripheral surface of the rotation shaft 105 , the certain position facing the groove 51 .
- the bending point holder 52 is, for example, assembled into a member such as the slider 104 , for example, the member being slidably movable together with the seat 101 along the sliding direction L 1 , and being not rotatable together with the rotation shaft 105 of the seat 101 .
- the bending point holder 52 holds part of the first wiring material 20 wound around and accommodated inside the groove 51 at a certain position, against the outer peripheral surface of the rotation shaft 105 . Then, the bending point holder 52 forms a bending point of the first wiring material 20 between a part of the first wiring material 20 proceeding toward the relay device 10 side along the outer peripheral surface of the rotation shaft 105 and a part of the first wiring material 20 proceeding toward the winding device 30 side along the sliding direction L 1 .
- the thus configured guide 50 allows the groove 51 and the bending point holder 52 to wind and hold the end of the first wiring material 20 on the relay device 10 side around the outer peripheral surface of the rotation shaft 105 , in association with the rotation of the seat 101 in the rotating direction L 2 . That is, when a seat 101 rotates in the rotating direction L 2 , the first wiring material 20 slides to form a bending point at the bending point holder 52 as the seat 101 rotates, and a part of the first wiring material 20 on the relay device 10 side with respect to the bending point is wound around and accommodated inside the groove 51 so as to be held therein.
- the above-described wire harness 1 for seats electrically connects the power supply 107 on the vehicle floor 100 side with the electrical equipment 108 provided to the seat 101 , by use of the winding device 30 , the first wiring material 20 , the relay device 10 , and the second wiring material 40 interposed therebetween, so as to supply power from the power supply 107 to the electrical equipment 108 .
- the winding device 30 unwinds and winds the first wiring material 20 along the sliding direction L 1 .
- the winding device 30 can appropriately store therein, in accordance with the slide position and the rotation position of the seat 101 , an excess length of the first wiring material 20 with the first wiring material 20 being tensed.
- the wire harness 1 for seats can appropriately supply power without intermission to the seat 101 provided with various seat arrangements made by the slide movement and the rotation. Furthermore, the wire harness 1 for seats allows the winding device 30 to store therein an excess length of the first wiring material 20 , so as to prevent, for example, the occurrence of abnormal noise due to flapping of the first wiring material 20 .
- the above-described wire harness 1 for seats allows the guide 50 to wind and hold the end of the first wiring material 20 on the relay device 10 side around the outer peripheral surface of the rotation shaft 105 , as the seat 101 rotates, so as to appropriately treat the excess length of the first wiring material 20 on the relay device 10 side.
- the wire harness 1 for seats can more appropriately supply power to the seat 101 .
- the guide 50 allows the groove 51 and the bending point holder 52 to form and hold a bending point at a certain position of the first wiring material 20 , so as to hold, along the sliding direction L 1 , unwinding and winding directions of the first wiring material 20 with respect to the winding device 30 .
- the sliding direction L 1 of the seat 101 is a direction along the front-back direction X, the direction is not limited thereto, and may be a direction along the width direction Y.
- the first wiring material 20 is a wiring material including a flat cable (FFC), the wiring material is not limited thereto, and may include a regular electric wire.
- FFC flat cable
- a wire harness for seats electrically connects a power supply in a vehicle floor side with electrical equipment provided to a seat, by use of a winding device, a first wiring material, a relay device, and a second wiring material interposed therebetween, so as to supply power from the power supply to the electrical equipment.
- the winding device unwinds and winds, in association with the slide movement and the rotation of the seat, the first wiring material along the sliding direction.
- the winding device can appropriately store therein an excess length of the first wiring material in accordance with a slide position of the seat and a rotation position thereof.
- the wire harness for seats exerts the effect of appropriately supplying power to the seat.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Seats For Vehicles (AREA)
- Electric Cable Arrangement Between Relatively Moving Parts (AREA)
Abstract
Description
- The present application claims priority to and incorporates by reference the entire contents of Japanese Patent Application No. 2019-002403 filed in Japan on Jan. 10, 2019.
- The present invention relates to a wire harness for seats.
- As conventional wire harnesses applied to vehicles, for example, Japanese Patent Application Laid-open No. 2013-023069 discloses a power supply device for slide seats that supplies power by electrically connecting the side of a body of a vehicle with the side of a slide seat slidably operable in a certain direction with respect to the body.
- The power supply device for slide seats disclosed in the above-described Japanese Patent Application Laid-open No. 2013-023069 is desired to have a configuration that allows more variety of seat arrangements, for example.
- The present invention has been made considering the above-described circumstances, and has an object of providing a wire harness for seats that can appropriately supply power to the seats.
- In order to achieve the above mentioned object, a wire harness for seats according to one aspect of the present invention includes a relay device provided to a rotation shaft of a seat disposed on a vehicle floor; a first wiring material having one end electrically connected with the relay device; a winding device installed on the vehicle floor side, and connected with another end of the first wiring material so as to electrically connect the first wiring material with a power supply on the vehicle floor side, the winding device unwinding and winding the first wiring material along a sliding direction of the seat in association with slide movement of the seat along the sliding direction and rotation of the seat with the rotation shaft serving as a rotation center; and a second wiring material provided to the seat and having one end electrically connected with the first wiring material via the relay device and another end electrically connected with electrical equipment provided to the seat.
- According to another aspect of the present invention, in the wire harness for seats, it is possible to further include a guide provided to an outer peripheral surface of the rotation shaft, the guide allowing the other end of the first wiring material to be wound along the rotating direction in association with rotation of the seat in a rotating direction with the rotation shaft serving as a rotation center.
- The above and other objects, features, advantages and technical and industrial significance of this invention will be better understood by reading the following detailed description of presently preferred embodiments of the invention, when considered in connection with the accompanying drawings.
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FIG. 1 is a schematic side view schematically illustrating a configuration of a seat to which a wire harness for seats according to an embodiment is applied; -
FIG. 2 is a schematic plan view schematically illustrating the configuration of the seat to which the wire harness for seats according to the embodiment is applied; -
FIG. 3 is a schematic perspective view schematically illustrating the configuration of the seat to which the wire harness for seats according to the embodiment is applied; -
FIG. 4 is a schematic perspective view illustrating an example of an operation of the seat to which the wire harness for seats according to the embodiment is applied; -
FIG. 5 is a schematic plan view illustrating the example of the operation of the seat to which the wire harness for seats according to the embodiment is applied; and -
FIG. 6 is a partial perspective view including a guide of the wire harness for seats according to the embodiment. - An embodiment according to the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the present invention is not limited by this embodiment. Furthermore, components of the embodiment described below include a component that is replaceable and easily thought of by the skilled person or substantially the same component.
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FIGS. 1, 2, and 5 , which will be explained later, illustrate only part of a vehicle floor with alternate long and two short dashes line by omitting details. In the other drawings, illustrating the vehicle floor is entirely omitted.FIG. 1 is a diagram illustrating a seat base with alternate long and two short dashes line by omitting details. In the other drawings, illustrating the seat base is entirely omitted.FIGS. 2 and 5 illustrate only part of a seat rail with alternate long and two short dashes line by omitting details. In the other drawings, illustrating the seat rail is entirely omitted. Moreover, each drawing omits parts of the seat other than important parts, as appropriate. In the description hereinafter, for a first direction, a second direction, and a third direction that intersect one another, the first direction is referred to as “a front-back direction X”, the second direction as “a width direction Y”, and the third direction as “a height direction Z”. The front-back direction X, the width direction Y, and the height direction Z orthogonally intersect one another. Typically, in a state in which a wire harness for seats is mounted in a vehicle and the vehicle is positioned on a horizontal plane, the front-back direction X and the width direction Y are along a horizontal direction, and the height direction Z is along a vertical direction. The front-back direction X typically corresponds to a longitudinal direction of the vehicle into which the wire harness for seats is mounted, and in the embodiment, corresponds to a sliding direction of the seat. The width direction Y typically corresponds to the vehicle-width direction of the vehicle into which the wire harness for seats is mounted. The height direction Z typically corresponds to the vehicle-height direction of the vehicle into which the wire harness for seats is mounted. The directions to be used hereinafter represent directions in which the parts of the vehicle are assembled one another, unless otherwise specified. - A
wire harness 1 for seats of the present embodiment illustrated inFIGS. 1, 2, and 3 constitutes a part of an onboard power supply system that supplies electric power to aseat 101 disposed on avehicle floor 100 that constitutes a floor surface of a vehicle. - The
seat 101 is a seat on which an occupant of the vehicle is seated, and is disposed on thevehicle floor 100 so as to be slidably movable along a sliding direction L1. The sliding direction L1 of theseat 101 of the present embodiment is a direction along the front-back direction X. Theseat 101 is supported by aseat rail 103 provided to thevehicle floor 100 with theseat base 102 interposed therebetween. Theseat base 102 is a base positioned in a lower side of theseat 101 in the height direction Z to support theseat 101. Theseat base 102 has a plurality ofsliders 104 provided on the lower surface thereof in the height direction Z. Theseat rail 103 is a guide rail with which theseat 101 is guided while being slidably moved along the front-back direction X. Theseat rail 103 is provided to thevehicle floor 100, in an extending manner in the front-back direction X. A pair of theseat rails 103 are provided by being spaced apart from each other along the width direction Y. Eachseat rail 103 has aslider 104 engaged therewith, and guides theslider 104 along the sliding direction L1 (front-back direction X). With this configuration, theseat 101 is supported by thecorresponding seat rail 103 with theseat base 102 and theslider 104 interposed therebetween, so as to be slidably movable on theseat rail 103 along the sliding direction L1. Theseat 101 may be electrically slidably movable or may be manually slidably movable. - Furthermore, the
seat 101 of the present embodiment includes arotation shaft 105, so as to be rotatable in a rotating direction L2 around therotation shaft 105. Therotation shaft 105 is provided to aseat surface 106 included in theseat 101, onto which an occupant is seated. Therotation shaft 105 is formed so as to protrude from a bottom surface of theseat surface 106 in the height direction Z, facing downward in the height direction Z. Therotation shaft 105 is formed substantially in a cylindrical shape with the central axis C being along the height direction Z. Therotation shaft 105 is supported by theseat base 102 around the central axis C in a rotatable manner. With this configuration, theseat 101 is rotatable with any desired angle in the rotating direction L2 around the central axis C of therotation shaft 105. For example, -
FIG. 4 illustrates a state in which theseat 101 is rotated by 90° with respect to the reference position indicated inFIG. 2 .FIG. 5 illustrates a state in which theseat 101 is rotated by 180° with respect to the reference position indicated inFIG. 2 . Theseat 101 may be electrically rotatable or may be manually rotatable. - The
wire harness 1 for seats supplies power to theseat 101 disposed on thevehicle floor 100, as described above, so as to be slidably movable along the sliding direction L1 and rotatable in the rotating direction L2. - Specifically, the
wire harness 1 for seats includes arelay device 10, afirst wiring material 20, awinding device 30, and asecond wiring material 40. - The
relay device 10 is a device that relays thefirst wiring material 20 and thesecond wiring material 40, in a power feeding line that electrically connects apower supply 107 on thevehicle floor 100 side withelectrical equipment 108 provided to theseat 101. Thepower supply 107 is mounted on a vehicle and serves as a source of supplying power. Thepower supply 107 is constituted of a power generator that generates electric power, a power storage device that stores therein electric power, and the like, for example. Thepower supply 107 is installed on thevehicle floor 100 side, and is configured so as not to move together with theseat 101. In contrast, theelectrical equipment 108 is an electronic device that operates with electric power supplied by thepower supply 107. Theelectrical equipment 108 is constituted of various actuators such as a heater that warms theseat surface 106 and an electric motor that drives various parts, various sensors that detect load and the like, and various switches or the like that receive operation input, for example. Theelectrical equipment 108 is provided to theseat 101 so as to be movable together with theseat 101. Thepower supply 107 and theelectrical equipment 108 are positioned so as to relatively move in association with the slide movement and the rotation of theseat 101. The power feeding line including therelay device 10 supplies electric power between thepower supply 107 and theelectrical equipment 108. - The
relay device 10 is provided to therotation shaft 105 of theseat 101. Therelay device 10 is installed on the outer peripheral surface of the lower end of therotation shaft 105 in the height direction Z. With this configuration, therelay device 10 is slidably movable together with theseat 101 along the sliding direction L1, and is integrally rotatable together with theseat 101 in the rotating direction L2. The respective ends of thefirst wiring material 20 and thesecond wiring material 40 are connected to therelay device 10, so that therelay device 10 relays electrical continuity between thefirst wiring material 20 and thesecond wiring material 40. Therelay device 10 may be constituted of various types of known connectors, for example. - The
first wiring material 20, which has electrical conductivity, is a wiring material that constitutes part of the power feeding line that electrically connects thepower supply 107 on thevehicle floor 100 side with theelectrical equipment 108 provided to theseat 101. Thefirst wiring material 20 is laid in a space part on the lower side of the vehicle floor 100 (what is called under the floor) in the height direction Z. Thefirst wiring material 20 is constituted of, for example, an electrical wire including a plurality of conductors (core wires) each having electrical conductivity the exterior of which is covered with an insulating cover. Thefirst wiring material 20 is constituted of, for example, a flat cable (flexible flat cable (FFC)) formed in a long flat-strip shape. Thefirst wiring material 20 extends in the front-back direction X. Thefirst wiring material 20 has one end that is electrically connected with therelay device 10 in the front-back direction X. Thefirst wiring material 20 has a connector provided to the one end thereof, for example, in the front-back direction X, and is electrically connected with therelay device 10 via the connector. With this configuration, in thefirst wiring material 20, the one end thereof in the front-back direction X is slidably movable together with therelay device 10 along the sliding direction L1 in association with the slide movement and the rotation of theseat 101, and is integrally rotatable together with theseat 101 in the rotating direction L2. Thefirst wiring material 20 has the other end that is connected with the windingdevice 30 in the front-back direction X. - The winding
device 30 is a device that stores therein an excess length of thefirst wiring material 20 in association with the slide movement and the rotation of theseat 101. The windingdevice 30 of the present embodiment is installed on thevehicle floor 100 side, and is configured so as not to move together with theseat 101. The windingdevice 30 is disposed in the space part on the lower side of thevehicle floor 100 in the height direction Z (what is called under the floor). The windingdevice 30 is electrically connected with thepower supply 107 via a connector and electrical equipment. The windingdevice 30 is connected with the other end of thefirst wiring material 20 in the front-back direction X, as described above. With this configuration, the other end of thefirst wiring material 20 connected with the windingdevice 30 also does not move together with theseat 101. The windingdevice 30 electrically connects thefirst wiring material 20 to thepower supply 107 on thevehicle floor 100 side. The windingdevice 30 relays electrical continuity between thefirst wiring material 20 and other electrical equipment on thepower supply 107 side. Furthermore, the windingdevice 30 unwinds and winds thefirst wiring material 20 along the sliding direction L1, in association with slide movement of theseat 101 along the sliding direction L1 and rotation of theseat 101 with therotation shaft 105 serving as a rotation center. The windingdevice 30 unwinds and winds thefirst wiring material 20, by being synchronized with the slide movement and the rotation of theseat 101. Thefirst wiring material 20 functions as what is called a spiral cable by being unwound and wound by the windingdevice 30. The windingdevice 30 is constituted of various known structures, including a return spring or the like that adds energizing force to a winding side of thefirst wiring material 20 unwound from the windingdevice 30, for example. - More specifically, the winding
device 30 unwinds and winds thefirst wiring material 20 along the sliding direction L1 (front-back direction X) in association with the rotation of theseat 101. That is, when theseat 101 rotates to one side of the rotating direction L2 (see FIGS. 4 and 5, for example) from a predetermined reference position (seeFIGS. 2 and 3 , for example), the windingdevice 30 unwinds thefirst wiring material 20 along the sliding direction L1. In contrast, when theseat 101 rotates so as to return to the reference position (seeFIGS. 2 and 3 , for example) from a state in which theseat 101 is rotated to the one side in the rotating direction L2 (seeFIGS. 4 and 5 , for example), the windingdevice 30 winds thefirst wiring material 20 along the sliding direction L1. - Furthermore, the winding
device 30 unwinds and winds thefirst wiring material 20 along the sliding direction L1 (front-back direction X) in association with the slide movement of theseat 101. That is, when theseat 101 slidably moves to a side in which theseat 101 is approaching the windingdevice 30 along the sliding direction L1 (front-back direction X) (for example, moves to a position indicated inFIG. 5 from a position indicated inFIGS. 2 and 3 ), the windingdevice 30 winds thefirst wiring material 20 along the sliding direction L1. In contrast, when theseat 101 slidably moves to a side in which theseat 101 is separating from the windingdevice 30 along the sliding direction L1 (front-back direction X) (for example, moves from a position indicated inFIG. 5 to a position indicated inFIGS. 2 and 3 ), the windingdevice 30 unwinds thefirst wiring material 20 along the sliding direction L1. - The
second wiring material 40, which has electrical conductivity, is a wiring material that constitutes part of the power feeding line that electrically connects thepower supply 107 on thevehicle floor 100 side with theelectrical equipment 108 provided to theseat 101. Thesecond wiring material 40 is provided to theseat 101 and laid inside theseat 101. Thesecond wiring material 40 is constituted of, similarly to thefirst wiring material 20, an electrical wire including a plurality of conductors (core wires) each having electrical conductivity the exterior of which is covered with an insulating cover, for example. Thesecond wiring material 40 may be constituted of a flat cable (FFC), similarly to thefirst wiring material 20, and may be constituted of a regular electric wire. Thesecond wiring material 40 has one end that is electrically connected with thefirst wiring material 20 via therelay device 10. Thesecond wiring material 40 has a connector provided to the one end thereof, for example, and is connected with therelay device 10 via the connector, so as to be electrically connected with thefirst wiring material 20 via therelay device 10. Moreover, thesecond wiring material 40 has the other end that is electrically connected with theelectrical equipment 108 provided to theseat 101. Thesecond wiring material 40 has an excess length that is invariable regardless of the slide movement and the rotation of theseat 101. It should be noted that the number of pairs of thesecond wiring material 40 connected with therelay device 10 and theelectrical equipment 108 is not limited to one, and may be two or more. That is, a plurality of thesecond wiring materials 40 may be connected with therelay device 10. In this case, therelay device 10 may also serve as a power distributor that distributes electric power to a plurality of pieces of theelectrical equipment 108 via thesecond wiring materials 40. - Furthermore, the
wire harness 1 for seats of the present embodiment includes, as illustrated inFIGS. 3, 4 , and 6, aguide 50 that guides an end of thefirst wiring material 20 on therelay device 10 side as theseat 101 rotates. - The
guide 50 is a part that is provided to an outer peripheral surface of therotation shaft 105, and allows an end of thefirst wiring material 20 on therelay device 10 side to be wound along the rotating direction L2, as theseat 101 rotates in the rotating direction L2 with therotation shaft 105 serving as the rotation center. Specifically, theguide 50 includes agroove 51 and abending point holder 52. - The
groove 51 is a groove formed on the outer peripheral surface of therotation shaft 105. Thegroove 51 is annularly formed on the outer peripheral surface of therotation shaft 105 along the circumferential direction. Thegroove 51 can accommodate and position thefirst wiring material 20 by allowing thefirst wiring material 20 to be wound around the outer peripheral surface of therotation shaft 105 along the rotating direction L2. The above-describedrelay device 10 is disposed so as to be laid across thegroove 51. - The
bending point holder 52 is a part with which a bending point of thefirst wiring material 20 is formed in a certain position on the outer peripheral surface of therotation shaft 105 and by which the bending point is held. Thebending point holder 52 is slidably movable together with theseat 101 along the sliding direction L1, but is not rotatable together with therotation shaft 105 of theseat 101. Thebending point holder 52 is disposed in a certain position on the outer peripheral surface of therotation shaft 105, the certain position facing thegroove 51. Thebending point holder 52 is, for example, assembled into a member such as theslider 104, for example, the member being slidably movable together with theseat 101 along the sliding direction L1, and being not rotatable together with therotation shaft 105 of theseat 101. Thebending point holder 52 holds part of thefirst wiring material 20 wound around and accommodated inside thegroove 51 at a certain position, against the outer peripheral surface of therotation shaft 105. Then, thebending point holder 52 forms a bending point of thefirst wiring material 20 between a part of thefirst wiring material 20 proceeding toward therelay device 10 side along the outer peripheral surface of therotation shaft 105 and a part of thefirst wiring material 20 proceeding toward the windingdevice 30 side along the sliding direction L1. - The thus configured
guide 50 allows thegroove 51 and thebending point holder 52 to wind and hold the end of thefirst wiring material 20 on therelay device 10 side around the outer peripheral surface of therotation shaft 105, in association with the rotation of theseat 101 in the rotating direction L2. That is, when aseat 101 rotates in the rotating direction L2, thefirst wiring material 20 slides to form a bending point at thebending point holder 52 as theseat 101 rotates, and a part of thefirst wiring material 20 on therelay device 10 side with respect to the bending point is wound around and accommodated inside thegroove 51 so as to be held therein. - The above-described
wire harness 1 for seats electrically connects thepower supply 107 on thevehicle floor 100 side with theelectrical equipment 108 provided to theseat 101, by use of the windingdevice 30, thefirst wiring material 20, therelay device 10, and thesecond wiring material 40 interposed therebetween, so as to supply power from thepower supply 107 to theelectrical equipment 108. In this case, as theseat 101 slidably moves and rotates, the windingdevice 30 unwinds and winds thefirst wiring material 20 along the sliding direction L1. With this configuration, the windingdevice 30 can appropriately store therein, in accordance with the slide position and the rotation position of theseat 101, an excess length of thefirst wiring material 20 with thefirst wiring material 20 being tensed. As a result, as illustrated inFIG. 6 , for example, thewire harness 1 for seats can appropriately supply power without intermission to theseat 101 provided with various seat arrangements made by the slide movement and the rotation. Furthermore, thewire harness 1 for seats allows the windingdevice 30 to store therein an excess length of thefirst wiring material 20, so as to prevent, for example, the occurrence of abnormal noise due to flapping of thefirst wiring material 20. - The above-described
wire harness 1 for seats allows theguide 50 to wind and hold the end of thefirst wiring material 20 on therelay device 10 side around the outer peripheral surface of therotation shaft 105, as theseat 101 rotates, so as to appropriately treat the excess length of thefirst wiring material 20 on therelay device 10 side. As a result, thewire harness 1 for seats can more appropriately supply power to theseat 101. Theguide 50 allows thegroove 51 and thebending point holder 52 to form and hold a bending point at a certain position of thefirst wiring material 20, so as to hold, along the sliding direction L1, unwinding and winding directions of thefirst wiring material 20 with respect to the windingdevice 30. - It should be noted that the above-described wire harness for seats according to the embodiment of the present invention is not limited to the above-described embodiment, and can be changed in various manners within the scope recited in claims.
- While, in the foregoing description, the sliding direction L1 of the
seat 101 is a direction along the front-back direction X, the direction is not limited thereto, and may be a direction along the width direction Y. - While, in the foregoing description, the
first wiring material 20 is a wiring material including a flat cable (FFC), the wiring material is not limited thereto, and may include a regular electric wire. - A wire harness for seats according to the embodiment electrically connects a power supply in a vehicle floor side with electrical equipment provided to a seat, by use of a winding device, a first wiring material, a relay device, and a second wiring material interposed therebetween, so as to supply power from the power supply to the electrical equipment. In this case, the winding device unwinds and winds, in association with the slide movement and the rotation of the seat, the first wiring material along the sliding direction. With this configuration, the winding device can appropriately store therein an excess length of the first wiring material in accordance with a slide position of the seat and a rotation position thereof. As a result, the wire harness for seats exerts the effect of appropriately supplying power to the seat.
- Although the invention has been described with respect to specific embodiments for a complete and clear disclosure, the appended claims are not to be thus limited but are to be construed as embodying all modifications and alternative constructions that may occur to one skilled in the art that fairly fall within the basic teaching herein set forth.
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019002403A JP2020114082A (en) | 2019-01-10 | 2019-01-10 | Wire harness for seat |
JP2019-002403 | 2019-01-10 |
Publications (2)
Publication Number | Publication Date |
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US20200223380A1 true US20200223380A1 (en) | 2020-07-16 |
US10730455B1 US10730455B1 (en) | 2020-08-04 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US16/706,611 Expired - Fee Related US10730455B1 (en) | 2019-01-10 | 2019-12-06 | Wire harness for seats |
Country Status (3)
Country | Link |
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US (1) | US10730455B1 (en) |
JP (1) | JP2020114082A (en) |
DE (1) | DE102019218945A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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KR102507945B1 (en) * | 2018-03-26 | 2023-03-09 | 후루카와 덴키 고교 가부시키가이샤 | Flat cable routing structure for cable retractor and slide seat |
CN114194084B (en) * | 2020-09-17 | 2024-07-12 | 宝钜瑞士股份有限公司 | Child safety seat |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4885513A (en) * | 1989-02-01 | 1989-12-05 | Tachi-S Co., Ltd. | Side support device for a vehicle seat |
FR2790236B1 (en) * | 1999-02-25 | 2001-05-18 | Faure Bertrand Equipements Sa | SLIDER FOR REMOVABLE VEHICLE SEAT |
US6168234B1 (en) * | 1999-03-01 | 2001-01-02 | Lear Corporation | Seat assembly including a vehicle seat and system for rotating same |
US6793259B2 (en) * | 2002-03-29 | 2004-09-21 | Yazaki Corporation | Electric wire excess length absorbing device and sliding door-use power feeding apparatus using the same |
DE202004003047U1 (en) * | 2004-02-27 | 2004-06-17 | Reichhardt, Andreas, Dipl.-Agr.-Ing. | Console for a seat and control unit of a commercial vehicle attached to the console |
KR100588696B1 (en) * | 2004-10-19 | 2006-06-12 | 기아자동차주식회사 | Apparatus for adjusting length of seat wire harness |
US20070284905A1 (en) * | 2006-06-09 | 2007-12-13 | Gm Global Technology Operations, Inc. | Vehicle Seat with Swing-Out Lower Seat Portion |
US8998326B2 (en) * | 2009-04-01 | 2015-04-07 | E.V.S. Ltd. | Vehicle seat assembly |
JP5583086B2 (en) | 2011-07-21 | 2014-09-03 | 古河電気工業株式会社 | Power supply device for slide sheet |
JP5896409B2 (en) * | 2012-02-16 | 2016-03-30 | 矢崎総業株式会社 | Flat cable winding device |
JP2014037210A (en) * | 2012-08-20 | 2014-02-27 | Alps Electric Co Ltd | Rotary connector |
JP5830447B2 (en) * | 2012-08-20 | 2015-12-09 | アルプス電気株式会社 | Rotating connector |
JP6025205B2 (en) * | 2013-03-14 | 2016-11-16 | 矢崎総業株式会社 | Flat cable winding device |
JP6112660B2 (en) * | 2013-04-23 | 2017-04-12 | 矢崎総業株式会社 | Flat cable routing structure |
CN107960140B (en) * | 2016-08-16 | 2020-12-25 | 古河电气工业株式会社 | Rotary connector device |
DE102017208446A1 (en) * | 2017-05-18 | 2018-12-06 | Volkswagen Aktiengesellschaft | Vehicle equipment system |
-
2019
- 2019-01-10 JP JP2019002403A patent/JP2020114082A/en not_active Abandoned
- 2019-12-05 DE DE102019218945.8A patent/DE102019218945A1/en not_active Withdrawn
- 2019-12-06 US US16/706,611 patent/US10730455B1/en not_active Expired - Fee Related
Also Published As
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DE102019218945A1 (en) | 2020-07-16 |
US10730455B1 (en) | 2020-08-04 |
JP2020114082A (en) | 2020-07-27 |
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