Vehicle seats

Abstract

To enhance a degree of freedom of layout of an electric component and a control instrument or the like and reduce unnecessary time and efforts and costs required in cable wiring.SOLUTION: A vehicular seat 310 comprises: a seat main body on which an occupant is seated; and a wireless power supply mechanism 350 provided in the seat main body. The seat main body has: one member; and the other member connected to the one member to be turnable with a rotating shaft as a center. The wireless power supply mechanism 350 has: an electric power transmitting part 351, arranged at the one member side in an area around the rotating shaft, which receives supply of electric power from a power supply part; and an electric power receiving part 352, arranged at the other member side in the area around the rotating shaft, which receives wirelessly supply of electric power from the electric power transmitting part 351. The seat main body is constituted including a seat frame constituting a frame, and out of the power transmitting part and the power receiving part, one is arranged on an inner surface of the seat frame, and the other is arranged on an external surface of the seat frame.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a vehicle seat.

Background Art

[0002] In recent years, many electrical components and control devices have been installed in vehicle seats, and power supply and information communication from the vehicle body side have become essential. Therefore, many cables for communication and power supply are wired from the vehicle body side to the seat cushion and seat back (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when many cables for communication and power supply are wired, these many cables occupy space, and there is a case where the freedom of layout when installing electrical components and control devices is restricted. Furthermore, when the reclining mechanism operates, the cables wired on the seat back side are bent each time, so it is necessary to improve the durability of the cables, but that much labor and cost are additionally required.

[0005] The present invention has been made in view of the above circumstances, and the problem is to improve the freedom of layout of electrical components and control devices and reduce the extra labor and cost associated with cable wiring.

Means for Solving the Problems

[0006] To solve the above problems, the invention described in claim 1 relates to a vehicle seat, The seat itself in which the occupant sits, The sheet body is equipped with a wireless power supply mechanism, The aforementioned seat body is One of the members, The other member is rotatably connected to the first member about a rotation axis, The aforementioned wireless power supply mechanism is A power transmission unit is located on one of the member sides in the peripheral region of the rotating shaft and receives power from the power supply unit, It is located on the other side of the rotating shaft's peripheral region and receives power wirelessly from the power transmission unit. It has a power receiving unit that receives power, The aforementioned seat body is composed of a seat frame that constitutes the skeleton, The power transmission unit and the power receiving unit are characterized in that one is arranged on the inner surface of the sheet frame, and the other is arranged on the outer surface of the sheet frame.

[0007] The invention described in claim 2 is a vehicle seat described in claim 1, The power receiving unit is characterized by being connected in a way that it can supply power to an item attached to the sheet body. Here, the power transmission unit and the power receiving unit may be arranged overlapping in a direction along the axial direction of the rotating shaft.

[0008] The invention described in claim 3 relates to a vehicle seat described in claim 1 or 2, The seat body comprises a pad supported by the seat frame and a surface covering the pad. The invention is characterized by having a sliding mechanism for sliding the seat body at least in the front-to-back direction, and a height adjustment mechanism for adjusting the height of the seat body. Furthermore, the power transmission unit and the power receiving unit may be arranged so as to trace the trajectory of the other member as it rotates around the rotation axis. [Effects of the Invention]

[0016] According to the invention described in claim 1, the wireless power supply mechanism has a power transmission unit located on one side of the member in the peripheral region of the rotating shaft and receiving power from a power supply unit, and a power receiving unit located on the other side of the member in the peripheral region of the rotating shaft and receiving power wirelessly from the power transmission unit. Therefore, when supplying power from one side of the member to the other side, it can be done wirelessly. This improves the freedom of layout for electrical components and control equipment installed on the seat body, and makes it easier to reduce the extra effort and cost that would have been incurred for wiring cables that span from one side of the member to the other side. Furthermore, since one of the power transmission and receiving units is located on the inner surface of the sheet frame and the other on the outer surface of the sheet frame, one of the power transmission and receiving units can be housed inside the sheet body, contributing to the miniaturization of the sheet body.

[0017] According to the invention described in claim 2, the power receiving unit is connected in a way that it can supply power to an item attached to the seat body, thereby providing the seat body with a function provided by the attached item, and contributing to improved comfort while seated. 。 [Brief explanation of the drawing]

[0026] [Figure 1] This is a side view illustrating the overview of a vehicle seat. [Figure 2] This is a side view showing the configuration near the reclining mechanism. [Figure 3] This is a rear view showing the configuration near the reclining mechanism. [Figure 4] This is a diagram showing the underside of the cover portion of the reclining mechanism. [Figure 5] This is a side view showing the seat back frame. [Figure 6]It is a rear view explaining an overview near the armrest. [Figure 7] It is a figure showing a modification example of the armrest.

Embodiments for Carrying Out the Invention

[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are subject to various technically preferable limitations for carrying out the present invention, but the technical scope of the present invention is not limited to the following embodiments and illustrated examples.

[0028] In addition, the vehicle seat described below includes vehicle seats for ships, airplanes, snowmobiles, water bikes, etc., but mainly refers to vehicle seats for automobiles. Vehicles include not only straddle-type or non-straddle-type motorcycles and automobiles (passenger cars), but also bicycles, motorized bicycles, construction vehicles, military vehicles, industrial vehicles, railway vehicles, and other agricultural vehicles such as cultivators and tractors. And a passenger sits on the vehicle seat. In the present embodiment, the vehicle seat 310 in an automobile will be described as an example.

[0029] The vehicle seat 310 includes, as a seat body, a seat cushion 311 that supports a person's thigh and hip, a seat back 312 whose lower end is supported by the seat cushion 311 and serves as a backrest, a reclining mechanism 313 that tilts (rotates) the seat back 312 with respect to the seat cushion 311, a headrest 314 that supports a person's head, and an armrest 315 that supports a person's arm. Such a seat body is supported by a support base 316 fixed to the vehicle body 1 of the automobile. In addition, if necessary, an auxiliary support part such as an ottoman that supports a person's legs is provided. Note that the support base 316 has a slide mechanism that slides the seat body at least in the front-rear direction (and the left-right direction), and a height adjustment mechanism that adjusts the height of the seat body.

[0030] The reclining mechanism 313 and the armrest 315 are considered movable parts of the seat body. In other words, in this embodiment, a movable part refers to a mechanism that supports a part of the occupant's body and operates to adjust the position of that part of the body.

[0031] The vehicle seat 310 is composed of a seat frame 320 that forms the frame, and a pad 330 supported by the seat frame 320, which is covered with a seat cover 340 that forms the surface. The seat frame 320 and pad 330 are equipped with electrical components and control devices necessary to provide various functions to the vehicle seat 310. The seat cover 340 also covers these electrical components and control devices.

[0032] As shown in Figures 2 to 6, the seat frame 320 comprises a seat cushion frame 321 that constitutes the skeleton of the seat cushion 311, a seat back frame 322 that constitutes the skeleton of the seat back 312, reclining components 323a, 323b, and 323c that constitute the reclining mechanism 313, a headrest frame (not shown) that constitutes the skeleton of the headrest 314, and an armrest frame 325 that constitutes the skeleton of the armrest 315.

[0033] A pad 330 is provided on the seat cushion frame 321, and both the seat cushion frame 321 and the pad 330 are covered by a seat cover 340.

[0034] The seat cushion frame 321 includes a pair of left and right cushion side frames 321a, a back pipe frame 321c, a pan frame (not shown), and a pressure receiving member (not shown).

[0035] The left and right pair of cushion side frames 321a are formed to be elongated in the front-to-back direction and are connected to the seat back frame 322 at their rear ends via a reclining mechanism 313.

[0036] The back pipe frame 321c is made of pipe material. The back pipe frame 321c is stretched between the rear ends of a pair of left and right cushion side frames 321a, connecting the rear ends of the pair of left and right cushion side frames 321a.

[0037] The pan frame is a pressure-receiving member made of a metal or resin plate that bears the load of the occupant, connecting the front ends of each cushion side frame 321a, and is located below the occupant's thighs when seated in a normal driving position.

[0038] The pressure-receiving member is, for example, made of an S-spring, with its rear end hooked onto the back pipe frame 321c and its front end hooked onto the rear end of the pan frame. This pressure-receiving member is located below the occupant's buttocks when seated in a normal driving position.

[0039] Next, a pad 330 is provided on the front side of the seat back frame 322, and these seat back frame 322 and pad 330 are covered by a seat cover 340 which forms the surface of the seat back 312.

[0040] The seat back frame 322 includes a pair of left and right back side frames 322a, an upper frame 322c, a lower frame 322d, and a pressure receiving member (not shown).

[0041] The left and right pair of backside frames 322a are formed to be elongated in the vertical direction and are connected to the seat cushion frame 321 at their lower ends via a reclining mechanism 313.

[0042] The upper frame 322c is made of pipe material and is bent into a U-shape. Its left and right ends (lower ends) are welded to the upper ends of the pair of left and right backside frames 322a, connecting the upper ends of each backside frame 322a. In this embodiment, the upper frame 322c is made of pipe material, but it may also be formed by sheet metal processing of a metal plate.

[0043] The lower frame 322d is made of pipe material, and its left and right ends are welded and joined to the rear sides of the lower ends of the pair of left and right backside frames 322a, connecting the lower ends of each backside frame 322a.

[0044] The pressure-receiving member is composed of, for example, an S-spring, with its left and right ends attached to the left and right inner sides of a pair of left and right backside frames 322a. This pressure-receiving member is located behind the occupant's back when seated in a normal driving position.

[0045] Next, the reclining mechanism 313, composed of reclining components 323a, 323b, and 323c, connects the seat cushion frame 321 and the seat back frame 322, and also allows the seat back frame 322 to rotate relative to the seat cushion frame 321. The reclining mechanism 313 includes a reclining adjuster 323a, a bracket 323b, a shaft 323c, and a biasing member (not shown).

[0046] The reclining adjuster 323a is an angle adjustment mechanism consisting of multiple members for adjusting the tilt angle of the seat back 312, and is provided on the lower sides of the left and right pair of back side frames 322a of the seat back frame 322.

[0047] Bracket 323b is integrally fixed to the seat cushion frame 321 and connected to the reclining adjuster 323a, thereby connecting the seat cushion 311 and the seat back 312. This allows the seat back 312 to rotate relative to the seat cushion 311. These brackets 323b are formed by sheet metal processing of a metal plate and are provided in pairs, one on each side. Each bracket 323b is plate-shaped and extends parallel to the side of the seat cushion frame 321.

[0048] The shaft 323c passes through the lower ends of the left and right backside frames 322a, the left and right reclining adjusters 323a, and the left and right brackets 323b, supporting the seat back 312 so that it can rotate (rotate) relative to the seat cushion 311. In other words, the seat back 312 is a rotating member that rotates relative to the seat cushion 311 with the shaft 323c as its axis of rotation. A lever (not shown) is attached to one end of the shaft 323c, and when the lever is moved back and forth (or up and down), it rotates in accordance with the movement of the lever.

[0049] The biasing member biases the seat back frame 322 and is located on the backside frame 322a side of the reclining adjuster 323a. In this embodiment, the biasing member is a coil spring wound one or more times around the shaft 323c. One end of the biasing member engages with the seat back frame 322, and the other end engages directly or indirectly with the bracket 323b. As a result, the biasing member biases the seat back frame 322 toward the forward direction.

[0050] In this embodiment, the reclining mechanism 313, configured as described above, becomes unlocked when a lever (not shown) is pulled. While in this state, the seat back frame 322 can be adjusted to any angle. On the other hand, when the lever is released, the reclining mechanism 313 becomes locked.

[0051] Furthermore, as shown in Figures 1 and 4, the reclining mechanism 313 in this embodiment is covered by a reclining cover 313a that simultaneously covers the reclining mechanism 313, the side surface of the seat cushion 311, and the upper end side surface of the support base 316.

[0052] Next, the armrest frame 325 is provided with a pad 330 on its surface, and these armrest frame 325 and pad 330 are covered by a seat cover 340 that forms the surface of the armrest 315.

[0053] The armrest frame 325 is attached to the backside frame 322a via an angle adjustment mechanism 325a that adjusts the vertical angle. In other words, the armrest 315, which is a rotating member, can be rotated vertically relative to the seat back frame 322 by the angle adjustment mechanism 325a, and its angle can be adjusted.

[0054] The angle adjustment mechanism 325a has a pivot shaft 325b that protrudes from the backside frame 322a toward the lateral armrest frame 325. In other words, the armrest 315 is a rotating member that rotates relative to the seat back 312 around the pivot shaft 325b of the angle adjustment mechanism 325a.

[0055] As described above, the vehicle seat 310 is equipped with electrical components and control devices necessary to provide various functions to the vehicle seat 310. Conventionally, as shown in Figure 3, the electrical components were connected from the power supply unit to the electrical components by a cable 5 (also called a harness). However, since the reclining mechanism 313 and the armrest 315 are rotating members and movable parts that perform the above-mentioned operations, it was desirable to omit the cable 5. Therefore, the vehicle seat 310 is provided with a wireless power supply mechanism 350 for wirelessly supplying power to electrical components and control equipment, located near the movable parts (reclining mechanism 313, armrest 315) and in a position that does not interfere with the operation of the movable parts. The wireless power supply mechanism 350 in this embodiment comprises a power transmission unit 351 and a power receiving unit 352.

[0056] Here, examples of wireless power supply methods (wireless power supply methods) used by the wireless power supply mechanism 350 to supply power wirelessly (i.e., without contact) include electromagnetic induction, magnetic field resonance, electric field coupling, and radio wave reception. The electromagnetic induction method generates an induced magnetic flux between the transmitting and receiving coils by passing an electric current through the transmitting coil while the transmitting and receiving coils are placed close together. This induced magnetic flux then acts as a medium to induce an electromotive force in the receiving coil. The magnetic resonance method is a power supply method that involves embedding coils and capacitors on both the transmitting and receiving sides, and using magnetic resonance to activate the resonators in each side to supply power. The electric field coupling method is a system in which electrodes are installed on both the transmitting and receiving sides, and power is supplied by utilizing the electric field generated when these electrodes are in close proximity. A radio wave reception system is a method of supplying power by converting electric current into electromagnetic waves at the transmitting end and sending them to the receiving end. In this radio wave reception system, the receiving end receives electromagnetic waves from an antenna. It is converted into direct current through a rectifier circuit and used as power.

[0057] In this embodiment, an electromagnetic induction method is employed as the wireless power supply method. The power transmission unit 351 is configured with a transmitting coil located inside the housing and receives power from the vehicle body 1. The power receiving unit 352 is configured with a receiving coil installed inside the housing and receives power wirelessly from the power transmitting unit 351. More specifically, an electromotive force is generated in the power receiving unit 352 by the induced magnetic flux generated by the power supplied from the vehicle body 1 to the power transmitting unit 351. The housings of the power transmission unit 351 and the power receiving unit 352 are formed in an arc shape, as shown in Figures 2 and 5.

[0058] Between the power transmission unit 351 and the power receiving unit 352, there should be no obstacles that obstruct wireless power transmission, or obstacles should not be placed in a position through which the magnetic flux passes. Furthermore, the power transmission unit 351 and the power receiving unit 352 are arranged to maintain a constant distance from each other as much as possible in order to ensure good power transmission efficiency. Furthermore, the distance between the power transmission unit 351 and the power receiving unit 352 is arranged to be as short as possible in order to ensure good power transmission efficiency and to miniaturize the power transmission unit 351. Furthermore, in order to ensure good power transmission efficiency, the power transmission unit 351 and the power receiving unit 352 are arranged to be as parallel as possible, as shown in Figures 3 and 6. In addition, the power transmission unit 351 and the power receiving unit 352 are arranged to minimize positional misalignment in the vertical and horizontal directions in order to ensure good power transmission efficiency. More specifically, the power transmission unit 351 and the power receiving unit 352 are arranged to overlap (as described later).

[0059] The housing of the power transmission unit 351 is made of a material such as resin, at least on the side facing the power receiving unit 352, that does not obstruct wireless power transmission between the power transmission unit 351 and the power receiving unit 352.

[0060] In the case of the reclining mechanism 313, the power transmission unit 351 is located on the upper edge of the bracket 323b in the reclining mechanism 313, as shown in Figure 2. In the case of the reclining mechanism 313, the power transmission unit 351 is covered from the side by the reclining cover 313a. Figure 4 shows the back side of the reclining cover 313a, and the power transmission unit 351 is attached to the arc-shaped portion at the upper end of the reclining cover 313a. That is, the power transmission unit 351 is attached to the back side of the reclining cover 313a, and when the reclining mechanism 313 is covered by the reclining cover 313a, the power transmission unit 351 is positioned at the upper edge of the bracket 323b. Furthermore, the arc angle and length of the arc-shaped housing of the power transmission unit 351 attached to the back surface of the reclining cover 313a are set to be approximately equal to the arc angle and length of the upper edge of the bracket 323b.

[0061] In the case of the armrest 315, the power transmission unit 351 is attached to the inner surface of the backside frame 322a facing the base end of the armrest 315, as shown in Figures 5 and 6. The power transmission unit 351, located inside the backside frame 322a, is covered by the seat cover 340 together with the pad 330. The arc angle and length of the arc-shaped housing of the power transmission unit 351, which is attached to the inner surface of the backside frame 322a, are set to be approximately equal to the arc angle and length of the base end of the armrest 315.

[0062] Furthermore, the mounting position of the power transmission unit 351 is not limited to the above-mentioned locations (the back surface of the reclining cover 313a, the inner surface of the backside frame 322a), as long as there is enough space to place the housing, and it is located near the movable parts (reclining mechanism 313, armrest 315) and can be positioned overlapping with the power receiving unit 352. For example, in the above description, the power transmission unit 351 is attached to the back surface of the reclining cover 313a, but the power transmission unit 351 may also be attached to the upper edge of the bracket 323b.

[0063] The power receiving unit 352 has the function of receiving power wirelessly from the power transmitting unit 351. This power receiving unit 352 is positioned to overlap with the power transmitting unit 351. The power receiving unit 352 also supplies the supplied power to the electrical components and control equipment connected to it.

[0064] In other words, in the case of the reclining mechanism 313, the power receiving unit 352 is attached to the upper edge of the reclining adjuster 323a and the side of the backside frame 322a in the reclining mechanism 313, as shown in Figures 2 and 3. The arc angle and length of the arc-shaped housing are set to be approximately equal to the arc angle and length of the arc at the upper edge of the reclining adjuster 323a. Furthermore, since the power receiving unit 352 is mounted on the side of the backside frame 322a, which has a large surface area, the heat generated from the conversion loss when converting magnetic fields to electricity can be easily dissipated by the backside frame 322a, which has a large surface area.

[0065] In the case of the armrest 315, the power receiving unit 352 is located as shown in Figure 5, in the armrest 315 It is attached to the upper edge of the base end. The arc angle and length of the arc-shaped housing are set to be approximately equal to the arc angle and length at the base end of the armrest 315.

[0066] The power receiving unit 352 is positioned overlapping with the power transmitting unit 351. However, since the shape of the housings of both units is based on the shape of the movable parts, the power receiving unit 352 and the power transmitting unit 351 remain overlapping even when the movable parts, the reclining mechanism 313 and the armrest 315, are in operation. In short, in the case of the reclining mechanism 313, the power transmission unit 351 and the power receiving unit 352 are formed and arranged to follow the trajectory (path) of the movement of the reclining mechanism 313, which is a movable part. Furthermore, in the case of the armrest 315, the power transmission unit 351 and the power receiving unit 352 are formed and positioned to follow the trajectory (path) of the movement of the movable armrest 315. However, if the shape and size of the power transmission unit 351 and the power receiving unit 352 are made larger than the other, and the smaller unit moves within the area of ​​the larger unit, they can always be positioned overlapping, so it is not necessary for the shape and size of the power transmission unit 351 and the power receiving unit 352 to be the same.

[0067] In the case of the reclining mechanism 313, the distance between the power transmission unit 351 and the power receiving unit 352 is set to approximately 5 mm. Furthermore, in the case of the armrest 315, since the backside frame 322a is interposed between the power transmission unit 351 and the power receiving unit 352, an opening is formed in the part of the backside frame 322a located between the power transmission unit 351 and the power receiving unit 352, or the part is formed of a non-metallic material that does not interfere with wireless power transmission, in order to ensure reliable wireless power transmission.

[0068] In the vehicle seat 310 described above, even when the movable parts such as the reclining mechanism 313 and armrest 315 are operated, wireless power is supplied from the power transmission unit 351 to the power receiving unit 352, ensuring that power is reliably supplied to the electrical components and control equipment connected to the power receiving unit 352. To explain in more detail, power from the power supply unit on the vehicle body 1 is first supplied to the power transmission unit 351 near the reclining mechanism 313. Then, power from the power transmission unit 351 is supplied wirelessly to the opposing power receiving unit 352. Furthermore, the power receiving unit 352 near the reclining mechanism 313 can supply power to electrical components and control devices connected to it. Also, if this power receiving unit 352 is connected by cable to the power transmitting unit 351 near the armrest 315, it can supply power to the power transmitting unit 351. In other words, multiple wireless power supply mechanisms 350 can be connected and used with a single seat body.

[0069] In this embodiment, we have described two patterns in which the seat cushion 311 is one component of the seat body and the seat back 312 is the other component, and two patterns in which the seat back 312 is one component and the armrest 315 is the other component. However, other patterns are also possible. For example, there may be a pattern in which the seat cushion 311 can rotate and fold relative to the support base 316, or a pattern in which the headrest 314 can rotate relative to the seat back 312 to adjust its angle.

[0070] This embodiment provides the following excellent effects. In other words, the wireless power supply mechanism 350 has a power transmission unit 351 located on one of the member sides in the area surrounding the rotating shafts 323c and 325b and receiving power from the power supply unit, and a power receiving unit 352 located on the other member side in the area surrounding the rotating shafts 323c and 325b and receiving power wirelessly from the power transmission unit 351. Therefore, when supplying power from one member side to the other member side, it can be done wirelessly. This improves the freedom of layout for electrical components and control equipment installed on the seat body, and makes it easier to reduce the extra effort and cost that was incurred in wiring the cable 5 that spans from one member side to the other member side.

[0071] Furthermore, since the power transmission unit 351 and the power receiving unit 352 are arranged overlapping in the direction along the axial direction of the rotating shafts 323c and 325b, the power receiving unit 352 can receive power wirelessly from the power transmission unit 351 even if the other member rotates relative to the other member.

[0072] Furthermore, since the power transmission unit 351 and the power receiving unit 352 are arranged to trace the trajectory of the other member as it rotates around the rotation axes 323c and 325b, the power receiving unit 352 can easily receive power wirelessly from the power transmission unit 351 even if the other member rotates relative to the other member.

[0073] Furthermore, since at least one of the power transmission unit 351 and the power receiving unit 352 is formed in an arc shape that traces the trajectory of the rotational movement of the other member, the power receiving unit 352 can more easily receive power wirelessly from the power transmission unit 351 even when the other member rotates relative to the one member.

[0074] Furthermore, since the power receiving unit 352 of one of the multiple wireless power supply mechanisms 350 and the power transmitting unit 351 of the other wireless power supply mechanism 350 are connected in a way that allows for power supply, multiple wireless power supply mechanisms 350 can be used in conjunction within a single seat body. This minimizes the amount of wiring inside the seat body and improves the flexibility of the layout of electrical components and control equipment installed in the seat body.

[0075] Furthermore, since the power transmission unit 351 is located on the seat cushion 311 side of the area surrounding the rotation axis 323c in the reclining mechanism 313, and the power receiving unit 352 is located on the seat back 312 side of the area surrounding the rotation axis 323c in the reclining mechanism 313, power can be supplied wirelessly from the seat cushion 311 side to the seat back 312 side. This improves the flexibility of the layout of electrical components and control equipment installed in the seat body, and also reduces the extra effort and cost associated with wiring the cable 5 that spans from the seat cushion 311 side to the seat back 312 side.

[0076] Furthermore, since the power transmission unit 351 is attached to the back surface of the reclining cover 313a that covers the area surrounding the rotating shaft 323c, it is easy to position the power transmission unit 351 in the area surrounding the rotating shaft 323c. Also, since the power transmission unit 351 is not attached to the seat body side, there is no need to modify the seat body side, which is convenient when attaching the power transmission unit 351.

[0077] Furthermore, since the power transmission unit 351 is located on the seat back 312 side of the area surrounding the rotation axis 325b of the angle adjustment mechanism 325a of the armrest 315, and the power receiving unit 352 is located on the armrest 315 side of the area surrounding the rotation axis 325b of the angle adjustment mechanism 325a of the armrest 315, power can be supplied wirelessly from the seat back 312 side to the armrest 315 side. This improves the flexibility of the layout of electrical components and control equipment installed on the seat body, and also reduces the extra effort and cost associated with wiring the cable 5 that spans from the seat back 312 side to the armrest 315 side.

[0078] Furthermore, since one of the power transmission unit 351 and the power receiving unit 352 is located on the inner surface of the sheet frame 320 and the other is located on the outer surface of the sheet frame 320, one of the power transmission unit 351 and the power receiving unit 352 can be housed inside the sheet body, contributing to miniaturization of the sheet body.

[0079] [Variation] The embodiments to which the present invention can be applied are not limited to those described above, and can be modified as appropriate without departing from the spirit of the invention. Modifications are described below. The following modifications may be combined as much as possible. Furthermore, in each of the following modified examples, elements common to the above embodiments are denoted by the same reference numerals, and their descriptions are omitted or simplified.

[0080] In this modified example, the armrest 315 is equipped with a remote control 315a as an accessory. The remote control 315a is for operating, for example, a car's navigation system, and can be stored in a storage recess 315b formed on the upper surface of the armrest 315a.

[0081] In this modified example, the power transmission unit 351 and the power receiving unit 352 are not provided on the movable part, and therefore are not formed in an arc shape like the power transmission unit 351 and the power receiving unit 352 in the above embodiment.

[0082] The bottom of the storage recess 315b is provided with a power transmission unit 351 of the wireless power supply mechanism 350, and the remote control 315a is provided with a power receiving unit 352 of the wireless power supply mechanism 350. The remote control 315a also has a built-in rechargeable battery that is connected to the power receiving unit 352. As a result, the remote control 315a can be taken out of the storage recess 315b and used wirelessly, so that, for example, even if the driver's hands are occupied with driving, a passenger in the back seat can use the remote control 315a to operate the navigation system.

[0083] Furthermore, the power transmission unit 351 provided at the bottom of the storage recess 315b may be connected by cable to a power receiving unit 352 in another wireless power supply mechanism 350, and may receive power from the power receiving unit 352 in the other wireless power supply mechanism 350.

[0084] According to this modified example, the power receiving unit 352 is connected to an item attached to the seat body (remote control 315a) so that it can supply power to the seat body, thereby adding functions to the seat body through the attached item and contributing to improved comfort while seated. [Explanation of Symbols]

[0085] 1. Vehicle body 5 Cables 310 Vehicle seats 311 Seat Cushion 312 Seatback 313 Reclining mechanism 313a Reclining Cover 314 Headrest 315 Armrest 315a Storage recess 316b Remote control 320 Seat Frame 321 Seat Cushion Frame 322 Seat Back Frame 322a Backside Frame 323a Reclining Adjuster 323b Bracket 323c shaft rod 325 Armrest Frame 325a angle adjustment mechanism 350 Wireless power supply mechanism 351 Power Transmission Section 352 Power receiving section

Claims

1. The seat itself in which the occupant sits, The sheet body is equipped with a wireless power supply mechanism, The aforementioned seat body is One of the members, The other member is rotatably connected to the first member about a rotation axis, The aforementioned wireless power supply mechanism is A power transmission unit is located on one of the member sides in the peripheral region of the rotating shaft and receives power from the power supply unit, It has a power receiving unit which is located on the other member side of the peripheral region of the rotating shaft and receives power wirelessly from the power transmitting unit, The aforementioned seat body is composed of a seat frame that constitutes the skeleton, A vehicle seat characterized in that one of the power transmission unit and the power receiving unit is arranged on the inner surface of the seat frame, and the other is arranged on the outer surface of the seat frame.

2. The vehicle seat according to claim 1, characterized in that the power receiving unit is connected in a manner that it can supply power to an article attached to the seat body.

3. The seat body comprises a pad supported by the seat frame and a surface covering the pad. A vehicle seat according to claim 1 or 2, characterized by having a sliding mechanism for sliding the seat body at least in the front-to-back direction, and a height adjustment mechanism for adjusting the height of the seat body.

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