JP2022065780A - Power supply system - Google Patents

Abstract

To provide a power supply system that can improve convenience.SOLUTION: A power supply system includes a power supply body (power supply body 20, 120, 220, 320, 420) equipped with a power supply unit (power supply device 22), and a cart (cart 10, 110, 210) that is equipped with a power receiving unit (power receiving device 12) and can move on the floor, and when the power supply unit and the power receiving unit are arranged in close proximity to each other, it is possible to perform non-contact power supply from the power supply unit to the power receiving unit, and when the cart stops in a predetermined position with respect to the power supply body (supply position R1, R2, R3, R4, R5), the power supply unit and the power receiving unit are arranged so as to be close to each other such that power can be supplied.SELECTED DRAWING: Figure 1

Description

The present invention relates to a power feeding system capable of supplying power from a power feeding device to a power receiving device in a non-contact manner.

In recent years, with the increasing use of mobile terminals such as tablets and laptop computers in facilities such as hospitals, mobile terminals are placed on carts, moved with carts, and used as they are on carts. Is increasing. Therefore, it is desired to be able to supply power to the mobile terminal on the cart.

In order to enable power supply to mobile terminals on the cart, a power supply system has been developed in which a battery is mounted on the cart and a power cord is plugged into an outlet to supply power to the battery. In order to clear the above, a power supply system has been developed in which a power supply device capable of non-contact power supply and a power receiving device among the power receiving devices are arranged in a cart and the power supply device is arranged on a table (for example, Patent Document 1). reference.).

Japanese Unexamined Patent Publication No. 2012-19906

However, according to the power supply system of Patent Document 1, the power supply unit is mounted on a table provided in the nurse station that can store a plurality of carts, but in order to further improve the convenience of the power supply system, There may be a request to place the power supply unit in a place other than the table provided in the nurse station.

The present invention has been made to solve the above problems, and provides a power supply system capable of improving convenience not only in hospitals and nursing care facilities but also in indoor spaces including offices and commercial facilities in general. The purpose is to do.

The power supply system according to the present invention is to solve the above problems in order to solve the above problems.
It is a power supply system that can perform non-contact power supply from the power supply unit to the power receiving unit.
A power supply body equipped with the power supply unit and
Equipped with the power receiving unit and equipped with a cart that can move on the floor.
By arranging the power feeding unit and the power receiving unit in close proximity to each other, it is possible to perform non-contact power feeding from the power feeding unit to the power receiving unit.
The cart is stopped at a predetermined position with respect to the power feeding body, so that the power feeding unit and the power receiving unit are arranged so as to face each other so as to be able to supply power.

According to the present invention, convenience can be improved.

It is a perspective view of the power supply system which concerns on 1st Embodiment of this invention. (A) is a plan view of the power supply system according to the first embodiment, and (B) is a front view of the power supply system according to the first embodiment. 2A is a cross-sectional view taken along the line AA of FIG. 2B. It is a perspective view of the cart which concerns on 1st Embodiment. It is a partial cross-sectional view schematically showing the vicinity of the power receiving part of FIG. It is a perspective view of the feeding body which concerns on 1st Embodiment. It is a control block diagram of the power supply system which concerns on 1st Embodiment. It is a perspective view of the power supply system which concerns on 2nd Embodiment of this invention. (A) is a front view of the power feeding system according to the second embodiment, and (B) is a sectional view taken along the line CC of FIG. 9 (A). It is a perspective view of the cart which concerns on 2nd Embodiment. It is a perspective view of the feeding body which concerns on 2nd Embodiment. It is explanatory drawing which saw a part of the positioning part in a plane. It is a perspective view of the power supply system which concerns on 3rd Embodiment of this invention. It is a perspective view of the cart which concerns on 3rd Embodiment. (A) is a perspective view of the power feeding body in the standby state according to the third embodiment, and (B) is a perspective view of the feeding body in the used state according to the third embodiment. (A) is a perspective view showing a power supply system in which the cart according to the third embodiment is brought close to the power supply position, and (B) is a situation in which the cart according to the third embodiment is positioned at the power supply position. It is a perspective view which shows the power supply system. It is a perspective view of the power supply system which concerns on 4th Embodiment of this invention. It is a perspective view of the power supply system which concerns on 5th Embodiment of this invention. It is a perspective view of the feeding body which concerns on 5th Embodiment. (A) is a plan view of the power feeding body according to the fifth embodiment, (B) is a front view of the feeding body according to the fifth embodiment, and (C) is the right side of the feeding body according to the fifth embodiment. It is a plan view. It is a perspective view which shows the modification of the power supply system which concerns on 5th Embodiment.

Hereinafter, the power supply system according to the embodiment of the present invention will be described with reference to the drawings.

<First Embodiment>
First, the power supply system 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 7. 1 is a perspective view showing the feeding system 1, FIG. 2A is a plan view showing the feeding system 1, FIG. 2B is a front view showing the feeding system 1, and FIG. 3 is a front view showing FIG. (B) is a sectional view taken along the line AA.

As shown in FIGS. 1 to 3, the power feeding system 1 includes a cart 10 on which a power receiving device 12 is mounted and capable of traveling on the floor F, and a feeding body 20 on which the power feeding device 22 is mounted. 1 to 3 are views showing a power feeding system 1 in which the power receiving device 12 is held in a state where power can be supplied from the power feeding device 22. In the power feeding system 1, in order for the power receiving device 12 to be held in a state where power can be supplied from the power feeding device 22, the power receiving device 12 and the power feeding device 22 need to be arranged so as to face each other in the horizontal direction. The proximity state related to the power receiving device 12 and the power feeding device 22 is a state in which the power receiving device 12 and the power feeding device 22 are in contact with each other, and a state in which the power receiving device 12 and the power receiving device 22 are not strictly in contact with each other. It means a state in which the power receiving device 12 and the power feeding device 22 are mutually arranged within a range of possible distance. The same applies to other embodiments.

Although the details will be described later, the main body portion of the feeding body 20 is composed of a wall 21 erected on the floor F. Therefore, when the cart 10 is stopped at a predetermined position with respect to the power feeding body 20 (wall 21), the power receiving device 12 and the power feeding device 22 are arranged in close proximity to each other, and power can be supplied from the power feeding device 22 to the power receiving device 12. Is. Hereinafter, the predetermined position where power can be supplied to the power supply body 20 (wall 21) of the cart 10 is referred to as “power supply position R1”.

Further, as will be described later, the cart 10 can basically travel in various directions (freely) on the floor F, but a reference traveling direction is set. In the following, as the direction related to the cart 10, the reference traveling direction is simply referred to as "traveling direction", and the direction opposite to the traveling direction is referred to as "opposite direction". Further, with respect to the cart 10, the right direction with respect to the traveling direction is referred to as "traveling right direction", and the left direction with respect to the traveling direction is referred to as "traveling left direction". Further, the traveling direction and the opposite direction are collectively referred to as a "traveling front-back direction", and the traveling right direction and the traveling left direction are collectively referred to as a "traveling left-right direction". In the traveling direction, the cart 10 is placed with respect to the feeding body 20 (wall 21) in order to arrange the power receiving device 12 and the feeding device 22 so as to face each other (position the cart 10 at the feeding position R1) so as to be able to supply power. It matches the direction of running.

Further, as the direction related to the power feeding body 20 (wall 21), the direction from the back side of the wall 21 to the space side when facing the wall 21 is referred to as "wall front direction", and the direction from the space side to the back of the wall 21 is referred to. The direction toward the side is called the "wall depth direction". Further, the right direction when facing the wall 21 is referred to as "wall right direction", and the left direction is referred to as "wall left direction". Further, the wall front direction and the wall back direction are collectively referred to as "wall front-back direction", and the wall right direction and wall left direction are collectively referred to as "wall left-right direction". Both the cart 10 and the feeding body 20 have the same vertical direction with respect to the floor F.

Next, the power receiving device 12 and the power feeding device 22 will be described. The power receiving device 12 and the power feeding device 22 are configured so that power can be supplied from the power receiving device 22 to the power receiving device 12 when the power receiving device 12 and the power feeding device 22 are appropriately arranged in close proximity to each other. Each of the power receiving device 12 and the power feeding device 22 has various electronic components necessary for realizing power supply from the power receiving device 22 to the power receiving device 12, and a protective case for storing and protecting the electronic components from the outside. (Not shown).

The power receiving device 12 and the power feeding device 22 can be appropriately set without particularly limiting the shape and size of the appearance and the internal structure within the range in which power can be supplied from the power receiving device 22 to the power receiving device 12. Further, a method (electromagnetic induction method, magnetic field resonance method, etc.) for realizing power supply from the power feeding device 22 to the power receiving device 12 can be appropriately set.

An electromagnetic induction method is adopted for the power receiving device 12 and the power feeding device 22. Although detailed description of the power receiving device 12 and the power feeding device 22 will be omitted, the appearances of the power receiving device 12 and the power feeding device 22 are both formed into a thin rectangular parallelepiped shape. That is, both the power receiving device 12 and the protective case of the power feeding device 22 are formed in a thin rectangular parallelepiped shape.

Further, in order to supply power from the power feeding device 22 to the power receiving device 12 by the electromagnetic induction method, it is necessary to generate a magnetic field. Therefore, the power feeding device 22 includes a power feeding coil unit 22b, and the power receiving device 12 has a power receiving coil unit 12b. (Not shown in FIGS. 1 to 3; see FIG. 7). In the first embodiment, the power receiving coil portion 12b and the feeding coil portion 22b are composed of a coil wire wound around an annular flat iron core formed flat.

Further, in order to supply power from the power feeding device 22 to the power receiving device 12 by the power feeding coil unit 22b and the power receiving coil unit 12b, the power feeding coil unit 22b and the power receiving coil unit 12b must be arranged in close proximity to each other. In addition, the power feeding coil portion 22b is arranged parallel to the surface of the protective case of the power feeding device 22, and the power receiving coil portion 12b is arranged parallel to the surface of the protective case of the power receiving device 12. .. In the following, for each of the power receiving device 12 and the power feeding device 22, the surface on the side where the power receiving coil unit 12b and the power feeding coil unit 22b are arranged is referred to as an “opposed surface”. Further, disposing the power receiving coil unit 12b and the power feeding coil unit 22b so as to face each other may be referred to as "arranging the power receiving device 12 and the power feeding device 22 so as to face each other". Therefore, in the power feeding system 1, the power receiving device 12 is mounted on the cart 10 and the power feeding device 22 is mounted on the feeding body 20 so that the power receiving device 12 and the power feeding device 22 can be arranged to face each other.

Next, the cart 10 will be described. FIG. 4 is a perspective view showing the cart 10. As shown in FIG. 4, the cart 10 includes a cart main body 11 constituting the main body portion, a power receiving device 12 arranged on the traveling direction side of the cart main body 11, and a spacer portion 13 functioning as a spacer of the power receiving device 12. Equipped. The cart 10 is composed of a nurse skirt used in hospitals and the like. However, the object to which the power receiving device 12 is attached is not limited to the nurse skirt, and may be a transport device that can move on the floor surface and is used for other purposes. Further, a connector capable of supplying an output to an electronic device is connected to the power receiving device 12 via a predetermined electric wire cable. Alternatively, a wireless charger may be connected to the power receiving device 12 via a predetermined electric wire cable.

The cart main body 11 has a support column 14 extended in the vertical direction, a flat plate-shaped top plate 15 provided at the upper end of the support column 14, and a cart leg having a limb structure provided at the lower end of the support column 14 and supporting the support column 14. It has a portion 16 and a caster 17 provided on the bottom surface of the tip of each limb of the cart leg portion 16 and placed on the floor surface F.

In the cart 10, two casters 17 are arranged side by side in the traveling left-right direction at a predetermined distance from the column 14 in the traveling direction in a plan view, and the two casters 17 are arranged at a predetermined distance from the column 14 in the opposite direction. They are arranged side by side in the left-right direction of travel. The two casters 17 on the opposite direction are arranged farther from the column 14 than the two casters 17 on the traveling direction side. The cart leg 16 projects more in the opposite direction than the traveling direction side.

Further, each of the two casters 17 on the traveling direction side and the two casters 17 on the opposite direction side are the same from the straight line along the traveling front-rear direction passing through the center of the support column 14 to the traveling right direction side and the traveling left direction side. They are arranged one by one at the positions separated by the distance. In other words, in the cart 10, two casters 17 on the left side of the traveling direction and two casters 17 on the right side of the traveling direction are symmetrically arranged with respect to the support column 14.

In the following, the two casters 17 arranged on the traveling direction side will be referred to as "front casters 17F", and the two casters 17 arranged on the opposite direction side will be referred to as "rear casters 17B". Further, the two casters 17 arranged on the left side of the traveling direction are referred to as "left side casters 17l", and the two casters 17 arranged on the right side of the traveling direction are referred to as "right side casters 17r". Further, the casters 17 arranged on the traveling direction side and the traveling right direction side are referred to as "front right caster FR", and the casters 17 arranged on the traveling direction side and the traveling left direction side are referred to as "front left caster FL". The casters 17 arranged on the opposite side and the traveling right direction side are referred to as "rear right caster FR", and the casters 17 arranged on the opposite direction side and traveling left direction side are referred to as "rear left caster FL".

Further, a mounting ring portion 17R for mounting the caster 17 is fastened to the bottom surface of each tip of the cart leg portion 16, and a caster 17 is fastened to the bottom surface of the mounting ring portion 17R. Therefore, the caster 17 is connected to the cart leg portion 16 via the mounting ring portion 17R.

The mounting ring portion 17R is formed in an annular shape in a plan view, and at least the half portion of the mounting ring portion 17R mounted on the front caster 17F on the traveling direction side is larger than the tip portion of the fastened cart leg portion 16. It is formed so as to project outward in the direction of travel. Therefore, as will be described later, when feeding power, the mounting ring portion 17R attached to the front caster 17F comes into contact with the surface of the feeding body 20.

The structure of the casters 17 can be appropriately set, but for example, all four casters 17 are flexible and are configured to be rotatable 360 degrees in a plan view. Therefore, the cart 10 can travel or rotate radially within a range of 360 degrees in a plan view from the support column 14.

The strut 14 is inserted into the strut body 14A fixedly supported by the cart leg 16 and the strut body 14A from above, and is slidable (up and down) in the vertical direction with respect to the strut body 14A. It has a portion 14B. The column main body portion 14A is formed in the shape of a quadrangular prism whose upper side is open and the lower side is closed, and the column movable portion 14B is formed in a quadrangular columnar shape corresponding to the inner surface of the column main body portion 14A.

Storage trays 18 for storing tools, documents, and the like are arranged side by side at a predetermined distance in the vertical direction near the lower end portion and the upper end portion of the side surface on the opposite side of the support column main body portion 14A. The storage tray 18 is formed in a horizontally long rectangular shape in a plan view, and is adhered to the column main body portion 14A at the center in the traveling left-right direction of the outer edge on the traveling direction side.

Further, a spacer portion 13 is formed so as to project toward the traveling direction side in the vicinity of the upper end portion of the side surface of the support column main body portion 14A on the traveling direction side. The spacer portion 13 is formed into a rectangular parallelepiped box shape and is open on the traveling direction side. A power receiving device 12 is arranged and supported at the tip of the spacer portion 13 on the traveling direction side where the spacer portion 13 is open. As described later, the power receiving device 12 is attached to the cart body 11 via the spacer portion 13 in a plan view at the tip of the top plate 15 in the traveling direction and the attachment ring of the front caster 17F. The tip of the portion 17R on the traveling direction side is 10 to 20 cm away from the side surface of the column main body portion 14A on the traveling direction side, and when the cart 10 is positioned at the feeding position R1, the power receiving device 12 and the feeding device 22 are close to each other. This is to fill the gap of 10 to 20 cm.

The power receiving device 12 is arranged so that the facing surface faces the traveling direction side and the long side direction is parallel to the vertical direction. The end portion on the opposite side of the power receiving device 12 is inserted inside the spacer portion 13. The spacer portion 13 is formed so that a gap of several millimeters (for example, 2 to 5 mm) from the outer peripheral surface of the portion where the power receiving device 12 is inserted can be secured. Further, the length in the short side direction of the appearance of the spacer portion 13 is substantially the same as the length in the traveling left-right direction of the column main body portion 14A.

Further, inside the spacer portion 13, a structure for the power receiving device 12 to cope with the non-landing of the floor F is housed. FIG. 5 is an explanatory diagram showing the internal structure of the spacer portion 13 in a simplified manner. As shown in FIG. 5, a vertically long rectangular base plate 13a having the same cross section as the inside of the spacer portion 13 orthogonal to the traveling front-rear direction is provided in the support main body portion 14A at substantially the center in the traveling front-rear direction inside the spacer portion 13. It is formed parallel to the side surface on the traveling direction side.

Further, a support shaft portion 13b extending in the front-rear direction is supported in the vicinity of both upper and lower ends of the base plate 13a and in the center in the left-right direction of travel. The tip of the support shaft portion 13b on the traveling direction side is connected to the surface of the power receiving device 12 opposite to the facing surface. Therefore, the power receiving device 12 is supported by the support shaft portion 13b. Further, a spring member 13c along the traveling front-rear direction is fitted on the outer peripheral side of the support shaft portion 13b. The spring member 13c is mounted as a compression spring between the power receiving device 12 and the base plate 13a. An insertion hole (not shown) is formed at a position corresponding to the base end side of each support shaft portion 13b of the base plate 13a so that the support shaft portion 13b can be inserted while being supported. Therefore, when the power receiving device 12 receives a load in the opposite direction, the support shaft portion 13b connected to the power receiving device 12 moves in the opposite direction while being connected to the power receiving device 12. At this time, since the spring member 13c is compressed, when the load on the power receiving device 12 is released, the spring member 13c urges the power receiving device 12 toward the traveling direction. As a result, the support shaft portion 13b connected to the power receiving device 12 moves to the traveling direction side and returns to the original state.

Return the explanation to the cart body 11. The top plate 15 is formed in a rectangular shape that is longer in the front-rear direction in a plan view, and is configured to have dimensions on which an electronic device (for example, a personal computer: not shown) can be placed. The top plate 15 is connected to the tip of the strut movable portion 14B at the center in the traveling left-right direction, and is connected to the tip of the strut movable portion 14B slightly closer to the traveling direction in the traveling front-rear direction.

Further, on the outer edge of the top plate 15 on the opposite direction side, a handle 19 for gripping when the cart 10 is run is provided so as to project on the opposite direction side. The top plate 15 is formed longer than the storage tray 18 in the traveling left-right direction, and in the cart 10, the storage tray 18 is completely formed in the traveling left-right direction and in the opposite direction without protruding from the top plate 15. It is covered with.

Further, in the side view, the traveling direction tip of the top plate 15, the traveling direction tip (opposing surface) of the power receiving device 12, and the traveling direction tip of the mounting ring portion 17R of the front caster 17F are along the traveling front-rear direction. It is aligned as a position and is located on the most traveling direction side of the cart 10. In other words, the distance from the tip of the top plate 15 on the traveling direction side and the tip of the mounting ring portion 17R of the front caster 17F on the traveling direction side to the side surface of the column main body portion 14A on the traveling direction side is 15 to 20 cm, and the power receiving device 12 Since the thickness of the top plate 15 is 3 to 5 cm, the tip of the top plate 15 in the traveling direction, the tip of the power receiving device 12 in the traveling direction (opposing surface), and the tip of the mounting ring portion 17R of the front caster 17F in the traveling direction are advanced. A spacer portion 13 is attached between the power receiving device 12 and the column main body portion 14A in order to align the positions in the front-rear direction. This is because the power receiving device 12 is stably brought close to the power feeding device 22 (wall 21) when the entire cart 10 comes into contact with the feeding body 20 in a state of facing the traveling direction. As a condition for aligning the tips on the traveling direction side, it is assumed that the front caster 17F at this time is held in a normal state for running the cart 10, as shown in FIGS. 1 and 3. ..

Further, in a plan view, the length L1 in the traveling left-right direction of the top plate 15 and the maximum outer end length L2 along the traveling left-right direction of the mounting ring portion 17R of the front caster 17F are the same, and the cart 10 In, both ends of the top plate 15 in the traveling left-right direction and both outer ends of the mounting ring portion 17R of the front caster 17F along the traveling left-right direction are located on the traveling right-direction side and the traveling left-direction side most.

Next, the feeding body 20 will be described. FIG. 6 is a perspective view showing the feeding body 20. As shown in FIG. 6, the power feeding body 20 abuts on the wall 21 functioning as the main body portion, the power feeding device 22 capable of supplying power to the power receiving device 12, and the top plate 15 to position the cart 10 at the power feeding position R1. A pair of top plate position guide plates 23 for positioning the cart 10 in contact with the mounting ring portion 17R of the front caster 17F, and a pair of caster position guide plates 24 for positioning the cart 10 at the feeding position R1 and a cart. It is provided with a wall cart position mark 25 that serves as a mark for 10. Although not shown, a power cable is connected to the power feeding device 22 and is appropriately wired to the outside.

The use and installation location of the wall 21 are not particularly limited, and for example, a wall for partitioning an indoor space such as a room or a passage is applied as the wall 21. As described above, in order to supply power from the power feeding device 22 to the power receiving device 12, it is necessary to arrange the power feeding device 22 and the power receiving device 12 in close proximity to each other. Therefore, the power feeding device 22 is attached to the wall 21 so as to be able to be arranged to face the power receiving device 12 mounted on the cart 10 mounted on the floor F.

The power feeding device 22 is fitted in the fitting recess 21h formed in the wall 21 so that the facing surface faces the front of the wall. The fitting recess 21h is formed at a position and a direction in which the power feeding device 22 fitted in the fitting recess 21a can be arranged so as to face the power receiving device 12 mounted on the cart 10 mounted on the floor F. .. Since the power receiving device 12 is attached to the cart 10 so that the long side direction is parallel to the vertical direction and the short side direction is parallel to the traveling left and right direction, the fitting recess 21h is also the length of the power feeding device 22. The side direction is parallel to the vertical direction, and the short side direction of the power feeding device 22 is parallel to the left and right direction of the wall. Further, the fitting recess 21h has the same height as the upper end and the lower end of the power receiving device 12 mounted on the cart 10 mounted on the floor F, respectively, at the upper end and the lower end of the feeding device 22 to be fitted. It is formed to be. The fitting recess 21h is formed so that the facing surface of the power feeding device 22 fitted in the fitting recess 21h is flush with the surface of the wall 21.

The pair of two top plate position guide plates 23 is a cart 10 in a state of facing the traveling direction, in other words, a top plate of the cart 10 in a state where the facing surface of the power receiving device 12 faces the wall 21 (feeding body 20). It is erected on the wall 21 so that the 15 can be tightly sandwiched (fitted). Specifically, each of the pair of top plate position guide plates 23 is composed of vertically long plate members, and a predetermined distance is set in the left-right direction of the wall so that the length direction is parallel to the vertical direction. It is installed side by side on the wall 21. The distance between the two top plate position guide plates 23 in the left-right direction of the wall coincides with the length L1 in the left-right direction of travel of the top plate 15. Further, each of the two pairs of top plate position guide plates 23 is placed on the wall 21 on the side surface so that the top plate 15 provided on the cart 10 placed on the floor F is located between the upper end and the lower end. It is glued at a right angle. As a result, when the cart 10 is positioned at the feeding position R1, both ends in the traveling left-right direction of the top plate 15 abut on the inner side surfaces of the pair of top plate position guide plates 23 (see FIGS. 1 and 2). ).

As described above, since the top plate 15 is supported by the support column movable portion 14B, the top plate 15 can be raised and lowered as the support column movable portion 14B slides in the vertical direction. Therefore, each of the two pairs of top plate position guide plates 23 is formed so that the top plate 15 arranged at the highest position and the top plate 15 arranged at the lowest position fit between the upper end and the lower end. ing.

The pair of two caster position guide plates 24 are the cart 10 in a state of facing the traveling direction, in other words, the front caster 17F of the cart 10 in a state where the facing surface of the power receiving device 12 faces the wall 21 (feeding body 20). It is erected on the wall 21 so that the mounting ring portion 17R of the above can be tightly sandwiched (fitted). Specifically, each of the pair of two caster position guide plates 24 is composed of vertically long plate members, and is separated from each other in the left-right direction of the wall so that the long side direction is parallel to the vertical direction. It is arranged side by side on the wall 21. The distance between the two caster position guide plates 24 in the left-right direction of the wall coincides with the maximum width L2 of both outer ends in the left-right direction of travel of the mounting ring portion 17R of the front caster 17F. Further, each of the two pairs of caster position guide plates 24 is provided on the side surface so that the mounting ring portion 17R of the front caster 17F provided on the cart 10 mounted on the floor F fits between the upper end and the lower end. It is adhered to the wall 21 at a right angle. As a result, when the cart 10 is positioned at the feeding position R1, both outer ends of the mounting ring portion 17R of the front caster 17F in the traveling left-right direction are in contact with the inner surface of the pair of caster position guide plates 24. (See FIGS. 1 and 2). Each caster position guide plate 24 is placed on the floor F.

Further, in the first embodiment, as described above, the length L1 of the top plate 15 in the traveling left-right direction and the maximum length between both outer ends L2 along the traveling left-right direction of the mounting ring portion 17R of the front caster 17F are formed. It is set to be the same. Therefore, the top plate position guide plate 23 and the caster position guide plate 24 arranged on the left side with respect to the wall 21, and the top plate position guide plate 23 and the caster position guide plate 24 arranged on the right side are arranged in the vertical direction. It will be installed.

The wall cart position mark 25 is a straight line connecting the lower end of the top plate position guide plate 23 arranged on the left side of the wall 21 and the upper end of the caster position guide plate 24, and the top plate position guide arranged on the right side. It is represented by a straight line connecting the lower end of the plate 23 and the upper end of the caster position guide plate 24.

Further, the power feeding system 1 includes a floor cart position mark 26 which serves as a mark for positioning the cart 10 with respect to the power feeding position R1. The floor cart position mark 26 is displayed on the floor F, and is represented by a U-shape that generally surrounds the rear caster 17B on the outside in a state where the cart 10 facing the traveling direction is in contact with the wall 21. .. Specifically, the floor cart position mark 26 is on the opposite side of the rear caster 17B in a state where the cart 10 facing the traveling direction is in contact with the wall 21 from the lower ends of the two caster position guide plates 24. It is represented by two straight lines orthogonal to the wall 21 extending to the end of the wall and one straight line parallel to the wall surface of the wall 21 connecting the two straight lines.

Next, an example of the configuration of the control circuit in the power feeding system 1 including the power receiving device 12 and the power feeding device 22 and its operation method will be described with reference to FIG. 7. FIG. 7 shows a control block diagram of the power supply system 1. As shown in FIG. 7, in the control circuit 22a of the power feeding device 22, the power feeding coil unit 22b, the frequency conversion unit 22c connected to the power feeding coil unit 22b, and the power feeding side A / D connected to the frequency conversion unit 22c A conversion unit 22d and a power supply unit 22e connected to the power feeding side A / D conversion unit 22d are included. On the other hand, in the control circuit 12a of the power receiving device 12, the power receiving coil unit 12b, the power receiving side A / D conversion unit 12c connected to the power receiving coil unit 12b, and the power receiving control connected to the power receiving side A / D conversion unit 12c A unit 12d, an output control unit 12e, and a display unit 12f connected to the output control unit 12e are included.

An AC voltage of AC100V having a commercial frequency (50 Hz or 60 Hz) is supplied to the power supply unit 22e. In the power supply unit 22e, in order to obtain a high frequency AC voltage that enables electromagnetic induction, AC100V is stepped down to an AC voltage that is easy to A / D convert. Further, the power feeding side A / D conversion unit 22d converts the stepped-down AC voltage into a DC voltage capable of frequency conversion. Further, the frequency conversion unit 22c converts the DC voltage into an AC voltage having a frequency (for example, several tens of kHz to several hundreds of kHz) capable of non-contact power feeding by electromagnetic induction. As a result, the feeding coil unit 22b generates a high frequency (several tens of kHz to several hundreds of kHz) AC magnetic field.

Next, non-contact power feeding by electromagnetic induction is performed in a state where the power feeding coil unit 22b and the power receiving coil unit 12b are arranged to face each other. The high-frequency (several tens of kHz to several hundreds of kHz) AC magnetic field generated by the feeding coil portion 22b is electromagnetically induced to propagate to the power receiving coil portion 12b arranged to face the feeding coil portion 22b. Therefore, a high frequency (several tens of kHz to several hundreds of kHz) AC voltage is generated in the power receiving coil unit 11b.

Further, the power receiving side A / D conversion unit 12c converts a high frequency AC voltage into a DC voltage capable of frequency conversion to a commercial frequency (50 Hz or 60 Hz). The output control unit 12e converts the DC voltage into an AC voltage of AC100V having a commercial frequency (50 Hz or 60 Hz) used in an electronic device such as a personal computer and outputs the AC voltage. Further, when the power receiving device 12 has a built-in battery or the like, or when the power receiving device 12 is connected to an external battery or the like, the power receiving control unit 12d responds to the charging status of the battery or the like to the power receiving side A. A control instruction is given to the / D conversion unit 12c. Further, the display unit 12f indicates that the non-contact power supply by electromagnetic induction is normally performed in a state where the power supply coil unit 22b and the power receiving coil unit 12b are arranged to face each other, based on the signal from the output control unit 12e. Display with a lamp or the like.

As described above, according to the power supply system 1 according to the first embodiment, the power supply device 22 is arranged on the wall 21, and the cart 10 is moved toward the wall 21 and positioned at the power supply position R1 to be mounted on the cart 10. It is possible to supply power to the received power receiving device 12. Here, since the top plate 15 is sandwiched between the top plate position guide plate 23 and the mounting ring portion 17R of the front caster 17F is sandwiched between the caster position guide plate 24, the cart 10 can be reliably positioned at the feeding position R1. Further, since the spacer portion 13 is provided on the traveling direction side of the column main body portion 14A and the power receiving device 12 is attached to the tip of the spacer portion 13 on the traveling direction side, the mounting ring portion of the top plate 15 and the front caster 17F is attached. Even if the tip of 17R on the traveling direction side is in contact with the wall 21, the power receiving device 12 and the power feeding device 22 can be brought close to each other.

Further, since the pair of support shaft portions 13b and the spring member 13c are arranged side by side in the spacer portion 13 at regular intervals in the vertical direction, for example, there is a case where non-landing is formed in the vicinity of the feeding position R1. Even so, when the power receiving device 12 is brought into contact with the power feeding device 22, the support shaft portions 13b and the spring members 13c arranged side by side at predetermined intervals in the vertical direction are moved in the traveling front-rear direction to absorb the non-landing. The facing surface of the power receiving device 12 can be held parallel to the vertical direction.

Here, a modified example of the first embodiment will be described. In the first embodiment, the cart 10 has a spacer portion 13 that has a function of bringing the power receiving device 12 and the power feeding device close to each other and moves the power receiving device 12 in the front-rear direction, but is mounted on the feeding body 20. It may have been done. In this case, the spacer portion 13 makes the power feeding device 22 movable in the front-rear direction of the wall at two locations separated by a predetermined distance in the vertical direction. Further, the spacer portion 13 may be mounted on either the cart 10 or the feeding body 20 by appropriately changing the dimensions in the traveling front-rear direction (wall front-rear direction).

Further, the spacer portion 13 has a function of bringing the power receiving device 12 and the power feeding device 22 close to each other, but is provided with a base plate 13a, a support shaft portion 13b, and a spring member 13c for moving the power receiving device 12 in the front-rear direction. It doesn't have to be.

Further, the feeding body 20 may be configured to include only one of the top plate position guide plate 23 and the caster position guide plate 24. Alternatively, the feeding body 20 may be configured not to include both the top plate position guide plate 23 and the caster position guide plate 24. Further, the feeding body 20 may be configured to include only one of the wall surface cart position mark 25 and the floor surface cart position mark 26. Alternatively, the feeding body 20 may be configured not to include both the wall surface cart position mark 25 and the floor surface cart position mark 26.

Further, although the feeding body 20 is composed of the wall 21, it may be composed of a panel member that partitions the interior space. Further, although the wall 21 constituting the feeding body 20 is erected on the floor F, a gap may be formed between the wall 21 and the floor F in the range where the cart 10 abuts in the left-right direction of the wall.

Further, in the first embodiment, the power receiving device 12 and the power feeding device 22 are attached so that the long side direction is parallel to the vertical direction, but the power receiving device 12 and the power feeding device 22 are also oriented with respect to the horizontal direction. , The long side direction may be changed as appropriate, such as parallel to the horizontal direction.

<Second Embodiment>
Next, the power supply system 101 according to the second embodiment of the present invention will be described with reference to FIGS. 8 to 12. 8 is a perspective view showing the power feeding system 101, FIG. 9A is a front view of the power feeding system 101, and FIG. 9B is a sectional view taken along the line CC of FIG. 9A.

As shown in FIGS. 8 to 9, the power feeding system 101 includes a cart 110 on which the power receiving device 12 is mounted and capable of traveling on the floor F, and a feeding body 120 on which the power feeding device 22 is mounted. 8 and 9 are diagrams showing a power feeding system 101 when the power receiving device 12 is powered by the power feeding device 22. In the power feeding system 101, in order for the power receiving device 12 to be supplied with power from the power feeding device 22, the power receiving device 12 and the power feeding device 22 need to be arranged so as to face each other in a horizontally close state.

Although the details will be described later, the main body portion of the feeding body 120 is composed of a shelf 121 embedded and fixed in a vertical wall. Therefore, when the cart 110 is stopped at a predetermined position with respect to the power feeding body 120 (shelf 121), the power receiving device 12 and the power feeding device 22 are arranged horizontally close to each other, and the power receiving device 12 to the power receiving device 12 It is possible to supply power to. In the following, the predetermined position where power can be supplied to the power supply body 120 (shelf 121) of the cart 110 is referred to as “power supply position R2”.

Further, as will be described later, the cart 110 has the same configuration as the cart 10 except that the spacer portion 13 of the cart 10 according to the first embodiment is not provided. Therefore, the same name as that of the first embodiment is used for the direction with respect to the cart 110. Further, as for the feeding body 120, since the shelf 121 is embedded and fixed in the vertical wall, the same name as that of the first embodiment is used for the direction with respect to the feeding body 120.

Next, the cart 110 will be described. FIG. 10 is a perspective view showing the cart 110. As shown in FIG. 10, the cart 110 includes a cart main body 11 constituting the main body portion and a power receiving device 12 attached to the cart main body 11. The cart 110 is not provided with the spacer portion 13 of the cart 10 according to the first embodiment. The power receiving device 12 is directly attached to the side surface of the column main body portion 14A of the cart main body 11 on the traveling direction side.

The cart 110 has the same configuration as the cart 10 except that the spacer portion 13 is not provided. Therefore, the height and orientation in which the power receiving device 12 is provided are the same as those of the cart 10. Further, in the traveling direction of the cart 110, the tip on the traveling direction side of the top plate 15 and the tip on the traveling direction side of the mounting ring portion 17R of the front caster 17F are formed at the same position, but the spacer according to the first embodiment. Since the portion 13 is not provided, the surface (opposing surface) of the power receiving device 12 on the traveling direction side is formed at a position at a predetermined distance in the opposite direction to them.

Next, the feeding body 120 will be described. FIG. 11 is a perspective view showing the feeding body 120. The shelf 121 forming the main body of the power feeding body 120 has a portal structure as a whole, and is formed by two vertically extending pillars 131 having a predetermined distance in the horizontal direction and the inner surfaces of the upper ends of both pillars 131. It is provided with a horizontal shelf portion 132 erected in the horizontal direction. Then, the shelf 121 is fitted into a rectangular shape and a concave portion having the same depth as the shelf 121 formed at the outer edge of the front view on the vertical wall (not shown in FIG. 11), and is flush with the vertical wall. It is fixed integrally with.

The shelf 121 is formed with a space S surrounded by two pillars 131 placed on the floor F and a horizontal shelf 132. In the space S, a storage unit 133 for accommodating the three power feeding devices 22, a positioning unit 134 for restraining the mounting ring portion 17R of the front caster 17F of the cart 110 to position the cart 110, and 2 above the storage unit 133. A top plate 135 erected in the horizontal direction is housed in the pillar portion 131 of the book. The storage unit 133, the positioning unit 134, and the top plate 135 constitute the shelf 121.

The storage portion 133 is erected horizontally at substantially the center of the two pillar portions 131 in the vertical direction, and has a box-shaped structure in which the horizontally long rectangular wall front side is open when viewed from the front, and the height in the vertical direction is high. It is formed to be slightly larger than the length in the long side direction of the power feeding device 22. The storage unit 133 is aligned so that the long side direction is parallel to the vertical direction, and three power feeding devices 22 having facing surfaces facing the wall front direction are flush with the wall front side surface of the storage unit 133. They are arranged side by side at equal intervals in the horizontal direction. Each power feeding device 22 is arranged at the same height as in the case of the first embodiment. In other words, each power feeding device 22 is attached to the storage unit 133 at a height that allows it to be horizontally opposed to the power receiving device 12 provided on the cart 110 mounted on the floor F.

Further, in the storage unit 133, the power feeding devices 22 arranged at both ends in the horizontal direction are separated from both ends in the horizontal direction of the storage unit 133 toward the center by a predetermined distance. Then, the feeding device 22 at the center in the horizontal direction is arranged at the same distance from the feeding device 22 arranged at both ends in the horizontal direction toward the center in the horizontal direction. The distance away from both ends of the horizontal direction of the storage unit 133 of the power supply device 22 arranged at both ends in the horizontal direction and the distance between the power supply device 22 at the center and the power supply devices 22 at both ends are determined when power is supplied to each power receiving device 12. It can be appropriately set as long as the three adjacent carts 110 do not interfere with each other.

Further, the storage portion 133 is formed so that the upper surface thereof is lower than the upper end of the support column main body portion 14A of the cart 110, in other words, the bottom surface of the top plate 15 when the support column movable portion 14B is held at the lowest position. Has been done. With this configuration, the space S of the cart 110 is such that the tip of the top plate 15 on the traveling direction side advances toward the rear side of the wall with respect to the traveling direction of the storage portion 133 in a flush state with the power feeding device 22. The power receiving device 12 can be brought close to the power feeding device 22 by allowing it to enter.

In the storage unit 133, the storage unit 133 is closed on the wall front side surface portion other than the power feeding device 22 arranged at predetermined intervals in the horizontal direction so as to be flush with the wall front side surface of the storage unit 133. A decorative plate 136 is formed. In other words, the front side of the wall of the storage unit 133 is closed by three power feeding devices 22 and four decorative plates 136.

The positioning portion 134 has a plate shape as a whole and is held in parallel with the surface (horizontal plane) of the floor F. Further, the positioning portion 134 is attached to two pillar portions 131 below the storage portion 133 so that the height in the vertical direction is substantially the same as the mounting ring portion 17R of the caster 17 of the cart 110 mounted on the floor F. It is erected horizontally.

Here, the details of the positioning unit 134 will be described with reference to FIG. FIG. 12 is an explanatory view of a part of the positioning unit 134 as viewed in a plane in order to explain the positioning unit 134. As shown in FIG. 12, the positioning portion 134 is formed with a guide portion 137 that comes into contact with the mounting ring portion 17R of the front caster 17F and guides the cart 110 to the feeding position R2 for positioning.

The guide portion 137 includes a plurality of triangular guide portions 137a projecting toward the front side of the wall, and an arc-shaped guide portion 137b having a central portion projecting in a curved shape between the triangular guide portions 137a. The cart 110 is positioned at the feeding position R2 in a state where the mounting ring portion 17R of the front caster 17F is in contact with the intersection 137c where the triangular guide portion 137a and the arc-shaped guide portion 137b intersect.

In the second embodiment, the power receiving device 12 is directly attached to the side surface of the support column main body 14A on the traveling direction side, and the mounting ring portion 17R of the front caster 17F is on the traveling direction side of the facing surface of the power receiving device 12. It is formed overhanging. Therefore, the crossing portion 137c to which the mounting ring portion 17R abuts due to the overhang is the surface facing the power receiving device 12 of the power feeding device 22, in other words, the wall front side surface of the storage portion 133, which is closer to the back of the wall. Is formed in. Therefore, when the mounting ring portion 17R comes into contact with the intersection portion 137c, the power receiving device 12 and the power feeding device 22 are brought close to each other. In other words, the cart 110 can be positioned at the feeding position R2.

As described above, according to the power supply system 101 according to the second embodiment, the power supply device 22 is arranged in the power supply body 120 fitted in the vertical wall, and the cart 110 is placed in the space S formed inside the power supply body 120. The power receiving device 12 mounted on the cart 110 can be supplied with power by moving to and positioning the power supply position R2. Here, since the mounting ring portion 17R of the front caster 17F abuts on the intersection 137c where the triangular guide portion 137a and the arc-shaped guide portion 137b intersect, the cart 110 can be reliably positioned at the feeding position R2. Further, in the power feeding system 101, the top plate 15 can move toward the traveling direction side of the surface of the power feeding device 22 facing the power receiving device 12, and the intersection 137c is deeper than the surface of the storage portion 133 on the front side of the wall. Since it is formed on the directional side, the power receiving device 12 can be brought close to the power feeding device 22, so that the spacer portion 13 such as the power feeding system 1 can be omitted, and the number of parts can be reduced.

Here, a modified example according to the second embodiment will be described. In the second embodiment, the shelf 121 constituting the power feeding body 120 is embedded in a vertical wall so that the surface of the wall and the surface of the shelf 121 are flush with each other, but the shelf 121 is flat with no recess formed. The shelf 121 may be fixed to the wall with the back surface of the shelf 121 in contact with the surface of the wall.

Further, the structure of the shelf 121 may be appropriately changed within a range in which the power receiving device 12 can be arranged so as to face the power feeding device 22 in a horizontally close state. Further, the number of the feeding devices 22 included in the feeding body 120 is not limited to three, and may be appropriately changed. Further, in the second embodiment, the power receiving device 12 and the power feeding device 22 are attached so that the long side direction is parallel to the vertical direction, but the power receiving device 12 and the power feeding device 22 are also oriented with respect to the horizontal direction. , The long side direction may be changed as appropriate, such as parallel to the horizontal direction.

Further, at the wall front side end portion of the triangular guide portion 137a of the positioning portion 134, it is movable inside the triangular guide portion 137a like the restraint piece 422d of the fifth embodiment described later, and the front caster 17F A mechanism for locking the opposite side of the mounting ring portion 17R may be mounted so that the cart 110 can be more firmly restrained by the feeding body 220 so that the cart 110 can be positioned at the feeding position R2.

<Third Embodiment>
Next, the power feeding system 201 according to the third embodiment of the present invention will be described with reference to FIGS. 13 to 16. FIG. 13 is a perspective view of the power feeding system 201.

As shown in FIG. 13, the power feeding system 201 includes a cart 210 on which the power receiving device 12 is mounted and capable of traveling on the floor F, and a feeding body 220 on which the power feeding device 22 is mounted. Note that FIG. 12 is a diagram showing a power feeding system 201 when the power receiving device 12 is supplied with power from the power feeding device 22. In the power feeding system 201, in order for the power receiving device 12 to receive power from the power feeding device 22, the power receiving device 12 and the power feeding device 22 need to be arranged in close proximity to each other in the vertical direction.

Although the details will be described later, the feeding body 220 is installed in the center of the floor F, in other words, in a place where no wall is erected around the floor F. Then, when the cart 210 is stopped at a predetermined position with respect to the feeding body 220 installed on the floor F, the power receiving device 12 and the feeding device 22 are arranged so as to face each other in the vertical direction in close proximity to each other from the feeding device 22. It becomes possible to supply power to the power receiving device 12. In the following, a predetermined position where power can be supplied to the power supply body 220 installed on the floor F of the cart 210 is referred to as a “power supply position R3”.

Further, as will be described later, the cart 210 is configured in the same manner as the cart 110 according to the second embodiment, except that the mounting position of the power receiving device 12 and the positioning mark 15 m are formed on the upper surface of the top plate 15. There is. Therefore, the direction with respect to the cart 210 uses the same name as that of the first embodiment and the second embodiment.

Next, the cart 210 will be described. FIG. 14 is a perspective view showing the cart 210. As shown in FIG. 14, the cart 210 includes a cart main body 11 constituting the main body portion and a power receiving device 12 attached to the cart main body 11.

The power receiving device 12 is attached to the bottom surface of the cart leg 16 so that the facing surface faces the floor F below. Further, the power receiving device 12 is attached to the cart leg 16 so that the facing surface is parallel to the surface of the floor F, in other words, is orthogonal to the support column 14. Further, the power receiving device 12 is attached to the cart leg 16 so that the long side direction is parallel to the traveling front-rear direction.

Further, positioning marks 15 m formed of a black-painted circle having a diameter of about 10 mm are displayed at both ends in the traveling left-right direction on the opposite side of the top plate 15 (see FIG. 13). The positioning mark 15m is displayed for positioning the cart 210 at the feeding position R3, and as will be described later, two positioning light sources 240 installed on the ceiling irradiate light on a straight line downward. When the positioning mark 15m is aligned with, the cart 210 is positioned at the feeding position R3.

Next, the feeding body 220 will be described. The power feeding body 220 is configured to be able to move up and down with respect to the floor F, is housed in the floor F in a standby state in which power is not supplied to the power receiving device 12, and is stored on the floor F in a usage state in which power is supplied to the power receiving device 12. Protruding from. FIG. 15A is a perspective view showing the feeding body 220 in the standby state, and FIG. 15B is a perspective view showing the feeding body 220 in the used state.

As shown in FIG. 15, the feeding body 220 has a feeding body main body 221 forming a main body portion, a feeding device 22 attached to the feeding body main body 221 and a drive source such as a motor, and raises and lowers the feeding body main body 221. It is equipped with a drive mechanism (not shown).

The feeding body main body 221 is formed in a columnar shape as a whole. The feeding body main body 221 is formed so that the diameter is at least smaller than the narrowest inner space in the traveling left-right direction of the front caster 17F and the narrowest inner space in the traveling left-right direction of the mounting ring portion 17R of the front caster 17F. There is. In other words, the front caster 17F of the cart 210 traveling straight toward the feeding body main body 221 and the mounting ring portion 17R of the front caster 17F do not abut on both outer sides of the feeding body main body 221 in the traveling left and right directions. The feeding body main body 221 is molded so that it can pass through the body main body 221. As shown in FIG. 13, when the cart 210 is positioned at the feeding position R3, the front caster 17F is located on the traveling direction side of the center of the feeding body main body 221. Therefore, the cart 210 is placed in the feeding position. This is because when moving toward R3 in the traveling direction, the front caster 17F and the mounting ring portion 17R of the front caster 17F need to pass on both sides of the feeding body main body 221 without being caught by the feeding body main body 221.

A guide groove 221a for guiding the power receiving device 12 in a predetermined direction is formed on the upper surface of the power feeding body main body 221. The guide groove 221a is formed so that one side with respect to a predetermined direction is open. Further, the guide groove 221a has a width substantially the same as the short side length of the power receiving device 12 and several cm so that the power receiving device 12 can slide in the guide groove 221a along a predetermined direction. It is formed at a depth of (for example, 1 to 2 cm). The straight line passing through the center of the guide groove 221a in the width direction passes through the center of the columnar shape related to the feeding body main body 221. Further, as will be described later, since the power receiving device 12 is inserted from the open side of the guide groove 221a along a predetermined direction, the guide for the power receiving device 12 is to facilitate the insertion of the power receiving device 12. The open inlet portion of the groove 221a is formed so as to expand in diameter toward the outside and be inclined downward.

Further, since the side of the guide groove 221a opposite to the open side in a predetermined one direction is closed, a step portion is formed, but the step portion facing the predetermined one direction is formed. , The power receiving device 12 is locked, and the cart 210 is positioned at the feeding position R3 with respect to a predetermined one-way component. Further, since the width of the guide groove 221a is substantially the same as the length in the short side direction of the power receiving device 12, the stepped portions formed on both edges of the guide groove 221a along a predetermined direction form the power receiving device 12. It functions to constrain the cart 210 in a direction orthogonal to a predetermined one direction and to position the cart 210 at the feeding position R3 in a direction orthogonal to the predetermined one direction. Therefore, the stepped portion consisting of three directions for partitioning the guide groove 221a is referred to as a "positioning stepped portion 221b".

Although a predetermined direction, which is the direction in which the guide groove 221a is formed, can be appropriately set, it is desirable that the guide groove 221a is appropriately set according to the installation location of the feeding body main body 221. For example, when the feeding body main body 221 is installed in the center of the floor F and the traveling direction of the cart 210 is not restricted in the vicinity of the feeding body main body 221 as in the third embodiment, the predetermined one direction is the frequency of use. The traveling direction of the high cart 210 may be used. Further, when the feeding body main body 221 is installed near the wall of the floor F and it is difficult to drive the cart 210 in the direction along the wall near the feeding body main body 221, a predetermined value is provided. One direction may be a direction orthogonal to the wall.

The power feeding device 22 is attached to the wall 21 so that the facing surface faces upward. The facing surface of the power feeding device 22 constitutes the bottom surface of the guide groove 221a and is exposed to the outside. Further, the power feeding device 22 has a facing surface parallel to the surface of the floor F, and both outer edges in the long side direction coincide with both inner edges (wall surfaces) of the guide groove 221a in a predetermined direction in a plan view. The long side direction is arranged so as to be along a predetermined direction of the guide groove 221a. Further, the power feeding device 22 is arranged so that the center in the long side direction and the center in the short side direction of the power feeding device 22 coincide with the center of the upper surface of the power feeding body main body 221 in a plan view. Therefore, the power feeding device 22 is arranged in the center of the power feeding body main body 221 in a plan view.

Further, the feeding body 220 is held so that the upper surface of the feeding body main body 221 is flush with the surface of the floor F in the standby state. Then, when it is in a state of use for supplying power to the power receiving device 12, it rises to a predetermined height. As a predetermined height related to the usage state here, a height at which the center in the vertical direction of the positioning step portion 221b is the same as the position of the facing surface of the power receiving device 12 mounted on the cart 210 mounted on the floor F is set. It is set. Therefore, the power receiving device 12 can be moved along the positioning step portion 221b, and finally the power receiving device 12 can be locked by the positioning step portion 221b in a predetermined direction to position the cart 210 at the feeding position R3. ..

The means and method for shifting from the standby state of the power supply body 220 to the used state (setting of the used state) and shifting from the used state of the power feeding body 220 to the standby state (setting of the standby state) can be appropriately set. Is. For example, an operating means that accepts the operation of the usage state setting and the standby state setting is connected to the power feeding body 220 by wired communication or wireless communication, and the usage state setting and the standby state are arbitrarily set by the operation to the operation means. May be possible to set.

Further, a detecting means capable of detecting whether or not the cart 210 is close to the feeding body main body 221 is installed inside the feeding body main body 221 or outside the feeding body main body 221, and the feeding body 220 is the detecting means. , And a microchip that is communicatively connected to a drive source that raises and lowers the power supply body 221. Even if the 221 is raised to set the usage state and the cart 210 detects that it is not close to the feeding body main body 221, the microchip lowers the feeding body main body 221 to set the standby state. good.

The inside of the feeding body main body 221 here includes the fact that it is attached to the inside of the feeding body main body 221 and the inside of the feeding body main body 221. Further, the outside of the feeding body main body 221 means that the feeding body main body 221 is attached at a position away from the feeding body main body 221.

Further, the power supply system 3 has a positioning sensor 230 capable of detecting a user of the cart 210 who is trying to position the cart 210 at the power supply position R3 (not shown in FIGS. 13 to 15), and the positioning sensor 230 is the cart 210. It is provided with a positioning light source 240 (not shown in FIGS. 13 to 15) that irradiates light on a straight line downward by detecting a user, and a positioning mark 250 for casters.

The positioning sensor 230 detects the user of the cart 210 when the cart 210 is arranged directly above the feeding body main body 221 so as to be positioned at the feeding position R3. The installation position and detection method for the positioning sensor 230 can be appropriately set within a range in which the user of the cart 210 can be detected. However, in the third embodiment, the positioning sensor 230 is composed of a motion sensor and is a ceiling cart. The 210 is installed at a position separated by a predetermined distance (for example, 30 cm) from the handle 19 when the power supply position R3 is arranged. As a result, the positioning sensor 230 can detect the user when the user of the cart 210 moves the cart 210 to the vicinity of the feeding position R3.

The positioning light source 240 is attached to a position corresponding to each positioning mark 15 m in the vertical direction when the cart 210 on the ceiling is positioned at the feeding position R3. When the positioning sensor 230 detects a person, each positioning light source 240 irradiates light (laser beam) in a straight line downward. Therefore, even in a situation where the cart 210 is not completely positioned at the feeding position R3, when light is emitted from the positioning light source 240, the final fine adjustment for the positioning can be performed. In order to prevent a person other than the person who is trying to supply power to the power receiving device 12, the positioning light source 240 irradiates light when the positioning sensor 230 continues to detect the person for a predetermined time (for example, 5 seconds). You may try to do it.

The caster positioning mark 250 is displayed at a position that matches each caster 17 on the floor F when the cart 210 is positioned at the feeding position R3. Therefore, even in a situation where the cart 210 is arranged at a position away from the power feeding position R3, the cart 210 can be moved toward the caster positioning mark 250 first. In the third embodiment, the caster positioning mark 250 is configured by an L-shaped display that surrounds each caster 17 along the outside.

Next, the positioning of the cart 210 with respect to the feeding position R3 will be described with reference to FIG. FIG. 16A is a perspective view showing a feeding system 201 in a situation where the cart 210 is brought close to the feeding body 220 (feeding position R3), and FIG. 16B is a perspective view showing the cart 210 being positioned at the feeding position R3. It is a perspective view which shows the power supply system 201 of a situation.

When positioning the cart 210 at the feeding position R3, first, the direction of the cart 210 is adjusted so that the traveling direction side of the cart 210 faces the open portion of the guide groove 221a of the feeding body main body 221, and the cart 210 is transferred to the feeding body. Move to the vicinity of 220. Here, when the cart 210 approaches the feeding body 220 to some extent, the feeding body main body 221 is manually raised by using the operating means as described above to put the feeding body 220 into a usable state. Alternatively, when the cart 210 approaches the feeding body main body 221 to some extent, the feeding body main body 221 is automatically raised by the detecting means and the feeding body 220 is put into use.

Next, the cart 210 is further brought closer to the feeding body 220 so that the casters 17 meet the caster positioning marks 250. Then, as shown in FIG. 16A, when the front caster 17R approaches the feeding body main body 221, the power receiving device 12 is inserted into the open portion of the guide groove 221a from the tip on the traveling direction side and positioned as it is. The cart 210 is further moved in the traveling direction while following the step portion 221b. Then, as shown in FIG. 16B, when the power receiving device 12 is locked to the positioning step portion 221b, the cart 210 is positioned at the power feeding position R3, and the power feeding device 22 and the power receiving device 12 face each other in the vertical direction in close proximity to each other. It will be arranged so that power can be supplied from the power feeding device 22 to the power receiving device 12.

Even if the power receiving device 12 rattles without being firmly restrained by the positioning step portion 221b, the position of the cart 210 is finely adjusted by aligning the light from the positioning light source 240 with the positioning mark 15 m, and the cart 210 Can be positioned at the feeding position R3.

As described above, according to the power feeding system 201 according to the third embodiment, the power feeding device 22 is arranged on the power feeding body 220 that can be raised and lowered installed at a place where the wall is not formed near the floor F, and the cart 210 is mounted. By moving it directly above the feeding body 220 and positioning it at the feeding position R3, the power receiving device 12 and the feeding device 22 are arranged in close proximity to each other in the vertical direction, and power is supplied from the feeding device 22 to the power receiving device 12. Can be done. Further, although the feeding body 220 is installed on the floor F, in the standby state, the upper surface of the feeding body main body 221 is flush with the surface of the floor F, so that the feeding body main body 221 obstructs the passage. It can be prevented from coming. This is particularly effective for places where no wall is formed in the vicinity and people can easily come and go.

Further, since no wall or the like is formed in the vicinity, the cart 210 has a high degree of freedom in running, but it is difficult to accurately position the cart 210. The cart 210 can be positioned at the feeding position R3. Further, finally, since the power receiving device 12 is locked in the predetermined one direction of the positioning step portion 221b and is constrained in the direction orthogonal to the predetermined one direction, the cart 210 is surely positioned at the feeding position R3. Can be done. Further, even when positioning of the positioning step portion 221b and the power receiving device 12 to the feeding position R3 is difficult or impossible, the feeding system 201 includes a positioning sensor 230, a positioning light source 240, and a positioning mark 15m. Therefore, the cart 210 can be reliably positioned at the feeding position R3.

Here, a modified example according to the third embodiment will be described. In the third embodiment, the upper surface of the feeding body main body 221 and the surface of the floor F are held flush with each other in the standby state of the feeding body 220, but the upper surface of the feeding body main body 221 is lower than the surface of the floor F. A lid for the floor F may be arranged above the feeding body main body 221. In this case, the lid may be opened and closed manually or automatically.

When the lid is opened and closed manually, the lid may be opened and closed by direct work, or the lid may be opened and closed by operating an operating means such as a remote controller. On the other hand, when the lid is automatically opened and closed, for example, when it is detected that the cart 110 has approached the installation location of the power feeding body main body 221 as in the case of the above-mentioned usage state setting, the cart is opened and the cart is opened. It may be closed when it is detected that the 110 is separated from the installation location of the feeding body main body 221. Further, the opening / closing of the lid and the raising / lowering of the feeding body main body 221 may be linked and automatically performed.

Further, in the third embodiment, the feeding body main body 221 can be raised and lowered, and the feeding body 220 can be switched between the standby state and the used state, but the feeding body 220 does not have the raising and lowering function. , It may be fixed in the used state. Alternatively, for example, a lid made of a transparent plate-shaped member may be formed in the center of the floor F, and the power feeding device 22 with the facing surface facing upward may be arranged immediately below the lid. However, in this case, since the power receiving device 12 mounted on the cart 210 and the power feeding device 22 cannot be brought into close proximity to each other in the vertical direction, the performance for supplying power to the power receiving device 12 is a failure due to a plate-shaped member and power receiving. It is desirable that the performance can cover the distance from the device 12. Alternatively, a component such as the spacer portion 13 according to the first embodiment is interposed between the power receiving device 12 and the cart leg portion 16, and the facing surface of the power receiving device 12 is held at a height close to the surface of the floor F. It may be done. Further, the power receiving device 12 may be configured to allow the cart 210 to be lowered and raised. In this case, the power supply system 201 may include an operating means for accepting the operation of lowering and raising the power receiving device 12, and the power receiving device 12 may be lowered and raised by operating the operating means. Further, the power feeding system 201 may include a detecting means for detecting the proximity to the feeding body 20, and the power receiving device 12 may be lowered and raised by the detection of the detecting means.

Further, in the third embodiment, when the cart 210 is positioned at the feeding position R3, the power receiving device 12 is inserted into the guide groove 221a after the feeding body 220 is put into use. After the power receiving device 12 and the power feeding device 22 were placed close to each other in terms of height, they were placed facing each other. It may be in a close state. In this case, for example, after the power receiving device 12 is arranged to face the power feeding device 22 by using the positioning sensor 230, the positioning light source 240, and the positioning mark 15m, the feeding body main body 221 rises and the power receiving device 12 guides. It may be inserted into the groove 221a from above.

Further, the overall shape of the feeding body main body 221 is not limited to the columnar shape, and may be appropriately changed. Further, in the feeding body 220, the guide groove 221a and the positioning step portion 221b are not formed in the feeding body main body 221, the upper surface of the feeding body main body 221 is flat, and the upper surface of the feeding body main body 221 faces the feeding device 22. It may be configured so as to be flush with the surface. In this case, since it is not necessary to insert the power receiving device 12 into the guide groove 221a, the usability of the power feeding system 201 is improved. Further, in this case, the upper surface of the feeding body main body 221 needs to be formed at a position lower than the facing surface of the power receiving device 12.

Further, although one side of the guide groove 221a is closed with respect to a predetermined direction, this one side is open, and the diameter may be expanded toward the outside and the guide groove 221a may be lowered. In this case, since the power receiving device 12 can be inserted into the guide groove 221a from any of them, the usability of the power feeding system 201 is improved.

Further, in the third embodiment, the positioning light source 240 irradiates the light by detecting the cart user by the positioning sensor 230, but the timing at which the positioning light source 240 irradiates the light, in other words, the installation of the positioning sensor 230. The location can be changed as appropriate, and for example, the feeding body main body 221 may be irradiated with light as it rises and turned off as it descends. Further, the number and position of the positioning light sources 240, and the number and position of the positioning marks 15 m may be appropriately changed. Further, the shape and position of the caster positioning mark 250 may be appropriately changed. Further, the power feeding system 201 may be configured not to include one or both of the pair of positioning light sources 240, the positioning mark 15 m, and the caster positioning mark 250.

<Fourth Embodiment>
Next, the power supply system 301 according to the fourth embodiment of the present invention will be described with reference to FIG. FIG. 17 is a perspective view of the power feeding system 301.

As shown in FIG. 17, the power feeding system 301 includes a cart 210 on which the power receiving device 12 is mounted and capable of traveling on the floor F, and a feeding body 320 on which the power feeding device 22 is mounted. Note that FIG. 17 is a diagram showing a power feeding system 301 when the power receiving device 12 is supplied with power from the power feeding device 22. As shown in FIG. 17, in the power feeding system 301, in order for the power receiving device 12 to receive power from the power feeding device 22, the power receiving device 12 and the power feeding device 22 need to be arranged in close proximity to each other in the vertical direction.

Although the details will be described later, the feeding body 320 is installed near the wall W of the floor F. Then, when the cart 210 is stopped at a predetermined position with respect to the power feeding body 320 installed on the floor F, the power receiving device 12 and the power feeding device 22 are arranged so as to face each other in the vertical direction in close proximity to each other from the power feeding device 22. It is possible to supply power to the power receiving device 12. In the following, a predetermined position where power can be supplied to the power supply body 320 installed on the floor F of the cart 210 will be referred to as a “power supply position R4”. The cart 210 according to the fourth embodiment has the same configuration as the cart 210 according to the third embodiment. Further, regarding the feeding body 320, since the feeding body 320 is installed near the wall W erected from the floor F, the direction with respect to the feeding body 320 has the same name as that of the first embodiment and the second embodiment. To use.

Next, the feeding body 320 will be described. The feeding body 320 is fixed so as to project from the surface of the floor F. The feeding body 320 includes a feeding body main body 321 forming the main body portion and a feeding device 22.

The feeding body main body 321 is configured to be the same as the feeding body main body 221 of the third embodiment except that it is fixed, where it is installed, and its orientation. The feeding body main body 321 itself is basically (substantially) configured to be the same as the feeding body main body 221 placed in the used state in the third embodiment. Therefore, the feeding body main body 321 includes a guide groove 321a formed in a predetermined direction and a positioning step portion 321b, as in the third embodiment.

Regarding the direction in which the power feeding body main body 321 is installed, the feeding body main body 321 has a predetermined one direction of the guide groove 321a which is orthogonal to the wall W in a predetermined direction of the guide groove 321a and is an entrance of the power receiving device 12. The open portion along the wall W is arranged so as to face the opposite side to the wall W. Therefore, the predetermined one direction related to the guide groove 321a and the positioning step portion 321b is parallel to the front-rear direction of the wall. Here, since the feeding body main body 321 is installed near the wall W, in order to supply power to the power receiving device 12 (to position the cart 210 at the feeding position R4), the facing surface of the power receiving device 12 It is necessary to drive the cart 210 so as to bring it closer to the wall W.

Regarding the location where the feeding body main body 321 is installed, the feeding body main body 321 attaches the mounting ring portion 17R of the front caster 17F to the wall W in a state where the traveling direction of the cart 210 faces the wall W with respect to the wall front-rear direction. The power receiving device 12 is locked to the positioning step portion 321b in the front-rear direction of the wall, the cart 210 is positioned at the feeding position R4, and the power receiving device 12 and the feeding device 22 are arranged so as to face each other in the vertical direction. It is installed so as to.

Further, at the lower end of the wall W, the mounting ring portion 17R of the front caster 17F of the cart 210 positioned at the feeding position R4 is restrained in the left-right direction of the wall, similarly to the caster position guide plate 24 according to the first embodiment. A pair of caster position guide plates 330 are provided. Therefore, when the cart 210 is moved so that the mounting ring portion 17R of the front caster 17F fits tightly between the pair of caster position guide plates 330, the power receiving device 12 is at the tip in the traveling direction as in the case of the third embodiment. When the mounting ring portion 17R of the front caster 17F abuts on the wall W, the power receiving device 12 is locked in a predetermined direction (here, in the front-rear direction of the wall) by the positioning step portion 321b. , The cart 210 is positioned at the feeding position R4. The caster position guide plate 330 is also included in the power supply system 4.

As described above, according to the power supply system 301 according to the fourth embodiment, the power supply device 22 is arranged on the power supply body 320 installed at the place where the wall W of the floor F is formed in the vicinity, and the cart 210 is the power supply body. By moving it directly above the 320 and positioning it at the power feeding position R4, the power receiving device 12 and the power feeding device 22 are arranged in close proximity to each other in the vertical direction, and the power receiving device 22 can supply power to the power receiving device 12. ..

Here, the power feeding body main body 321 is fixed in a state of protruding from the surface of the floor F, but since it is installed at a place where the wall W is formed near the floor F, it is possible for people to come and go. It is possible to alleviate the hindrance, and because the mechanism for raising and lowering is omitted, the structure can be simplified and the product cost can be suppressed. Further, the cart 210 is locked in the front direction of the wall by the wall W and is restrained in the left-right direction of the wall by the caster position guide plate 330 provided on the wall W, so that the wall W is used to supply power to the cart 210. It can be positioned at position R4. Further, since the cart 210 is locked in the wall front direction by the positioning step portion 321b and is restrained in the wall left-right direction, the cart 210 can be reliably positioned at the feeding position R4.

Here, a modified example according to the fourth embodiment will be described. In the fourth embodiment, the feeding body main body 321 is fixed in a state of protruding from the floor F, but may be configured to be able to move up and down like the feeding body main body 221 of the third embodiment. Further, the overall shape of the feeding body main body 321 is not limited to the columnar shape, and may be appropriately changed.

Further, the power feeding system 301 is configured so that the cart 210 can be positioned at the feeding position R4 by the positioning step portion 321b and the caster position guide plate 330, but it may be configured not to include either one.

<Fifth Embodiment>
Next, the power supply system 401 according to the fifth embodiment of the present invention will be described with reference to FIGS. 18 to 20. FIG. 18 is a perspective view of the power feeding system 401.

As shown in FIG. 18, the power feeding system 401 includes a cart 110 on which the power receiving device 12 is mounted and capable of traveling on the floor F, and a feeding body 420 on which the power feeding device 22 is mounted. Note that FIG. 18 is a diagram showing a power feeding system 401 when the power receiving device 12 is supplied with power from the power feeding device 22. As shown in FIG. 18, in the power feeding system 401, in order for the power receiving device 12 to receive power from the power feeding device 22, the power receiving device 12 and the power feeding device 22 need to be arranged so as to face each other in the horizontal direction.

Although the details will be described later, the power feeding body 420 is configured to be movable. Then, when the cart 110 is stopped at a predetermined position with respect to the power feeding body 420, the power receiving device 12 and the power feeding device 22 are arranged horizontally close to each other, and power is supplied from the power feeding device 22 to the power receiving device 12. It is possible. Hereinafter, the predetermined position where power can be supplied to the power supply body 420 of the cart 110 is referred to as “power supply position R5”.

Further, the cart 110 is configured in the same manner as the cart 110 according to the second embodiment. Therefore, the direction with respect to the cart 110 uses the same name as that of the first embodiment and the second embodiment.

Next, the feeding body 420 will be described. The power feeding body 420 is configured to be able to travel on the floor F. 19 is a perspective view showing the feeding body 420, FIG. 20A is a plan view showing the feeding body 420, FIG. 20B is a front view showing the feeding body 420, and FIG. 20C is a front view. Is a right side view showing the feeding body 420. As shown in FIGS. 19 to 20, the feeding body 420 includes a feeding body main body 421 forming a main body portion and a feeding device 22. In the fifth embodiment, for convenience, the front-back direction and the left-right direction are based on the arrows indicated by the "upper", "lower", "front", "rear", "left", and "right" shown in FIG. , And specify the vertical direction.

The feeding body main body 421 is composed of an overall vertically elongated stand that holds the feeding device 22 at a predetermined height, and has a positioning unit 422 for positioning the cart 110 with respect to the feeding body 420 at the feeding position R5 and feeding. A strut portion 423 to which the device 22 is attached, a pair of two wheels 424 that enable the feeding body main body 421 to travel on the floor F, a connecting portion 425 that connects the wheels 424 to the positioning portion 422, and a feeding body 420. It is provided with an upright leg portion 426 for stably standing up and a grip portion 427 for gripping when moving the feeding body 420.

The positioning portion 422 has a flat plate shape as a whole, and is formed in a shape in which the front side of the base portion is symmetrically overhanging in a curved shape with a horizontally long rectangular shape in the left-right direction as a base portion in a plan view. .. Further, the positioning portion 422 is held at the same height as the mounting ring portion 17R of the front caster 17F mounted on the cart 110 mounted on the floor F. In other words, the side surface (thickness portion) of the positioning portion 422 formed in a flat plate shape faces the side surface of the mounting ring portion 17R of the front caster 17F mounted on the cart 110 mounted on the floor F.

Protruding portions 422a projecting outward (leftward and rightward) in the horizontal direction are formed at both left and right ends on the rear side of the positioning portion 422, respectively. The front side surface of each protrusion 422a is inclined so as to recede to the rear side as it advances horizontally outward (leftward / rightward). The mounting ring portion 17R of the front caster 17F of the cart 110 abuts on the front side surface of each of the protruding portions 422a and the left and right side surfaces formed on the front side of the protruding portion 422a of the positioning portion 422 following the front side surface. .. In the following, the front side surface of the protrusion 422a will be referred to as a “first contact side surface 422b”, and the side surface following the front side of the first contact side surface 422b will be referred to as a “second contact side surface 422c”.

The traveling left direction portion (inner portion) of the mounting ring portion 17R of the front right caster 17FR abuts on the first contact side surface 422b and the second contact side surface 422c on the right side, and the first contact on the left side. The traveling right direction portion (inner portion) of the mounting ring portion 17R of the front left caster 17FL abuts on the side surface 422b and the second contact surface surface 422c.

Further, on the left and right ends on the front side of the positioning portion 422, restraint pieces 422d projecting outward in the horizontal direction (leftward and rightward) are provided in the normal state, respectively. The restraint piece 422d restrains the mounting ring portion 17R of the front caster 17F that abuts on the first contact side surface 422b and the second contact side surface 422c in the traveling front-rear direction and the traveling left-right direction, and the cart 110 is placed at the feeding position R5. Positioned.

Although the detailed structure of the restraint piece 422d is omitted, the restraint piece 422d is made of an elastic member such as a leaf spring, and the mounting ring portion 17R of the front caster 17F moving from the front side to the rear side is in contact with the restraint piece 422d. When they come into contact with each other, they are deformed and hidden inside the positioning portion 422. While the cart 110 is moving in the traveling direction, the mounting ring portion 17R continues to be in contact with the restraint piece 422d, and the deformation hidden inside the positioning portion 422 of the restraint piece 422d is maintained.

Then, when the cart 110 reaches the feeding position R5 (when the mounting ring portion 17R abuts on the first contact side surface 422b and the second contact side surface 422c), the mounting ring portion 17R separates from the restraint piece 422d and the restraint piece. 422d returns to the original protruding state. At this time, the rear side surface of the restraint piece 422d abuts on the opposite side of the mounting ring portion 17R of the front caster 17F. As a result, the mounting ring portion 17R is constrained by the restraint piece 422d in the traveling front-rear direction unless a load is applied to the cart 110 in the opposite direction. However, when a load in the opposite direction is applied to the cart 110 to some extent, the restraint piece 422d is deformed again and hidden inside the positioning portion 422. Then, when the mounting ring portion 17R completely passes the restraint piece 422d in a plan view, the restraint piece 422d returns to the original protruding state.

The strut portion 423 is formed vertically as a whole, and stands vertically from the upper surface of the positioning portion 422. In the upper part on the front side of the support column 423, the power feeding device 22 is parallel to the vertical direction in the long side direction and parallel to the horizontal direction in the short side direction with the front side, the left side, the right side, and the upper side completely exposed. It is installed so that it becomes. Then, the integrated power feeding device 22 and the support column 423 exhibit a columnar shape having a vertically long rectangular cross section as a whole. Therefore, the width in the left-right direction of the support column 423 is the same as the length in the short side direction of the power supply device 22, at least the length in the front-rear direction is longer than the thickness of the power supply device 22, and the height is the long side of the power supply device 22. Longer than the directional length.

The power feeding device 22 is attached with the facing surface facing forward. Further, the power feeding device 22 is held at a height that allows it to be arranged so as to face the power receiving device 12 mounted on the cart 110 mounted on the floor F in the vertical direction. Further, the power feeding device 22 is arranged to face the power receiving device 12 in the front-rear direction in the power feeding body main body 421 when the mounting ring portion 17R of the front caster 17F of the cart 110 is restrained by the positioning portion 422 in the left-right direction. The mounting ring portion 17R of the front caster 17F of the cart 110 is held in a position close to the front-rear direction when it is restrained by the positioning portion 422.

Further, the support column portion 423 is formed in a state where the rear side surface is aligned with the rear side surface of the positioning portion 422 (in a flush state). Further, the support column portion 423 is formed in the center of the positioning portion 422 in the left-right direction within a range within the positioning portion 422 in the front-rear direction in a plan view.

The connecting portion 425 that connects the positioning portion 422 and the pair of wheels 424 has a cross-sectional shape in which a substantially L-shape is rotated 90 degrees clockwise in the right side view, and the second contact side surfaces 422c are connected to each other in the left-right direction. It is formed to have the same length as the distance. One of the pair of wheels 424 is attached to the right end of the rear end of the bottom surface of the connecting portion 425, and the other is attached to the left end of the rear end of the bottom surface of the connecting portion 425.

The standing leg portion 426 is composed of a plate-shaped member, has a horizontally long rectangular shape in front view, and is formed into a curved shape in which the front side projects symmetrically along the long side direction. The curved shape on the front side of the standing leg portion 426 and the curved shape formed on the front side of the positioning portion 422 are substantially the same. Further, the upright leg portion 426 is formed at a position immediately in front of the connecting portion 425 and slightly behind the front side surface of the positioning portion 422, and is formed in a position slightly rearward from the front side surface of the positioning portion 422. The side tip is roughly aligned in the vertical direction with the front side surface of the support column 423.

Further, the standing leg portion 426 is attached to the bottom surface of the positioning portion 422 so that the short side direction related to the horizontally long rectangular shape in the front view is parallel to the vertical direction, and is attached to the floor F in the short side direction, that is, in the width direction. Although it is erected, the height in the short side direction coincides with the combined height of the connecting portion 425 and the wheel 424 arranged below the positioning portion 422. Therefore, the feeding body 420 (particularly, the strut portion 423) can stand up in a state orthogonal to the floor F as a whole and stably.

Further, a horizontally long U-shaped grip portion 427 is attached to the rear side of the upper surface of the support column portion 423 with respect to the power feeding device 22. Therefore, for example, when the user grips the grip portion 427 behind the feeding body 420 and pulls the upper end of the feeding body 420 backward, the feeding body 420 rotates clockwise in the right side view with the wheel 424 as a fulcrum. As a result, since the standing leg portion 426 is separated from the floor F, the feeding body 420 can be moved in that direction by pushing the feeding body 420 in the horizontal direction as it is.

As described above, according to the power supply system 401 according to the fifth embodiment, the power supply device 22 is arranged on the power supply body main body 421 capable of traveling on the floor F, and the cart 110 is moved to the front surface (front side) of the power supply body 420. By positioning the power supply device 12 at the power supply position R5, the power supply device 12 and the power supply device 22 are arranged so as to face each other in a horizontally close state, and power can be supplied from the power supply device 22 to the power reception device 12. Since the feeding body 420 can travel on the floor F, it can be moved according to various situations. Therefore, the convenience of the power feeding system 401 is improved.

Further, although the feeding body 420 can be moved to freely set the feeding position R5 and the feeding body 420 can be stably made to stand on the spot, the wheel 424 is the rear end of the feeding body main body 421. Since the feeding body main body 421 is vertically elongated as a whole, the feeding body 420 may fall to the rear side if a certain load is applied to the rear side such as a collision. Here, in order to improve the usability of the power feeding system 401, it is desired that the cart 110 can be positioned at the power feeding position R5 as it is without decelerating while traveling, but then the feeding body 420 may fall down. Therefore, as shown in FIG. 19, it is desirable to install the feeding body 420 in a state where the rear side surface is in contact with the wall W. This is because it is possible to prevent the feeding body 420 from falling backward while improving the usability of the cart 110.

Further, in order to increase the degree of freedom in the installation position of the feeding body 420, it is also possible to implement the feeding system 501 using two feeding bodies 420. The power supply system 501 will be described with reference to FIG. FIG. 21 is a perspective view showing the power feeding system 501. As shown in FIG. 21, the two feeding bodies 420 are installed on the floor F while leaning against each other on the rear side surface. In this way, when the feeding body 420 is installed, even if the cart 110 is driven from the front side with respect to one feeding body 420 at a certain speed and is positioned at the feeding position R5 related to the one feeding body 420, it is rearward. The other feeding body 420 arranged on the side prevents the feeding body 420 from falling backward.

In the power supply systems 401 and 501, the restraint piece 422d is provided as a means for restraining the cart 110 to the power supply body 220, but the restraint piece 422d is provided as in the positioning unit 134 according to the second embodiment. You may not do it.

<Other variants>
Next, a modification common to the first to fifth embodiments will be described. The appearance of the power receiving device 12 and the power feeding device 22 used in the first to fifth embodiments is composed of a thin rectangular parallelepiped, but the appearance shape of the power receiving device 12 and the power feeding device 22 is different. It may be changed as appropriate, such as a disk shape. Further, the sizes and shapes of the various members constituting the feeding bodies 20, 120, 220, 320, and 420 may be appropriately changed.

<Invention disclosed in the above-described embodiment>
The following inventions A to L are disclosed up to the preceding paragraph in this [mode for carrying out the invention]. In the description of the inventions A to L, the names and expressions of the corresponding configurations in the embodiment of the above-mentioned invention and the reference numerals used in the drawings are added in parentheses for reference. However, the elements such as the means constituting each invention are not limited to this appendix.

(1) Invention A
The invention according to invention A is
A power supply system (power supply system 1, 101, 201, 301, 401) capable of performing non-contact power supply from the power supply unit (power supply device 22) to the power reception unit (power receiving device 12).
A feeding body (feeding body 20, 120, 220, 320, 420) equipped with the feeding unit and
It is equipped with the power receiving unit and is equipped with carts (carts 10, 110, 210) that can move on the floor surface.
By arranging the power feeding unit and the power receiving unit in close proximity to each other, it is possible to perform non-contact power feeding from the power feeding unit to the power receiving unit.
The cart is stopped at a predetermined position (feeding position R1, R2, R3, R4, R5) with respect to the feeding body, so that the feeding unit and the power receiving unit are arranged so as to face each other so as to be able to supply power. Power supply system.
(2) Invention B
The invention according to invention B is
The power supply system according to the invention A.
The feeding body (feeding body 20) is composed of a wall (wall 21).
The feeding portion is arranged so as to be exposed on the surface of the wall.
The power receiving portion is arranged on the side surface of a pillar portion (post 14) extending in the vertical direction constituting the cart (cart 10).
A power feeding system, wherein the cart is stopped at a predetermined position (power feeding position R1) with respect to the feeding body, so that the feeding unit and the power receiving unit are arranged so as to face each other in a horizontally close state.
(3) Invention C
The invention according to invention C is
The power supply system according to the invention B.
The feeding system is characterized in that the feeding body is formed with positioning means (top plate position guiding plate 23, caster position guiding plate 24) for positioning the cart at a predetermined position with respect to the feeding body.
(4) Invention D
The invention according to invention D is
The power supply system according to the invention A.
The feeding body (feeding body 220, 320) is installed on the floor (floor F), and the feeding body (feeding body 220, 320) is installed on the floor (floor F).
The power feeding unit is arranged so that the surface facing the power receiving unit faces upward when power is supplied.
The power receiving portion is arranged so that the surface facing the feeding portion faces downward when power is supplied.
A power feeding system, wherein the cart is stopped at a predetermined position (feeding position R3, R4) with respect to the feeding body, so that the feeding unit and the power receiving unit are arranged so as to face each other in the vertical direction in close proximity to each other.
(5) Invention E
The invention according to invention E is
The power supply system according to the invention D.
The feeding body (feeding body 320) is composed of a projecting body (feeding body main body 321) protruding upward from the floor surface.
The power feeding unit is a power feeding system characterized in that the surface facing the power receiving unit is housed in the power feeding body so that the surface facing the power receiving unit is exposed from the upper surface of the power feeding body when the power feeding unit is fed.
(6) Invention F
The invention according to the invention F is
The power supply system according to the invention D.
The feeding body (feeding body 220) is
It is composed of a movable body (feeding body body 221) that can move up and down with respect to the floor surface.
When it is lowered and held at the lowest position, at least the upper surface is located substantially the same as or below the floor surface, and when it is raised and held at the highest position, at least the upper surface is said. It is configured to be located above the floor and
The power feeding unit is a power feeding system characterized in that the surface facing the power receiving unit is housed in the power feeding body so that the surface facing the power receiving unit is exposed from the upper surface of the power feeding body when the power feeding unit is fed.
(7) Invention G
The invention according to the invention G is
A power supply system according to the invention E or the invention F.
The feeding body is a feeding system characterized in that the feeding body is arranged in a place where a wall is not erected around the floor.
(8) Invention H
The invention according to the invention H is
A power supply system according to the invention E or the invention F.
The power feeding body is a power feeding system characterized in that the power feeding body is arranged at a place where a wall is erected around the floor.
(9) Invention I
The invention according to the invention I is
The power supply system according to the invention A.
The feeding body (feeding body 420) is
It consists of a vertically long stand (power supply body 421) as a whole.
It has a columnar power supply side pillar portion (post portion 423), and has a columnar power supply side pillar portion.
The feeding portion is arranged on the side surface of the feeding side pillar portion in an exposed state.
The power receiving portion is arranged on the side surface of the power receiving side pillar portion (post 14) extending in the vertical direction constituting the cart (cart 110).
A power feeding system, wherein the cart is stopped at a predetermined position (power feeding position R5) with respect to the feeding body, so that the feeding unit and the power receiving unit are arranged so as to face each other in a horizontally close state.
(10) Invention J
The invention according to invention J is
The power supply system according to the invention A.
The feeding body includes two vertically elongated stands (feeding body main body 421) as a whole.
The stand has a columnar power feeding side pillar portion (post portion 423).
The feeding portion is arranged on the side surface of the feeding side pillar portion in an exposed state.
The two stands stand on the floor surface in a state where the side surface on the side where the power feeding side pillar portion is arranged and the side surface on the opposite side are in contact with each other.
The power receiving portion is arranged on the side surface of the power receiving side pillar portion (post 14) extending in the vertical direction constituting the cart.
A power feeding system characterized in that, when the cart is stopped at a predetermined position with respect to one of the stands, the power feeding unit and the power receiving unit arranged on the stand are arranged so as to face each other in a horizontally close state.
(11) Invention K
The invention according to invention K is
A power supply system according to Invention I or Invention J.
The power supply system is characterized in that the stand is formed with a positioning unit (positioning unit 422) for positioning the cart at a predetermined position with respect to the power supply body.
(12) Invention L
The invention according to the invention L is
A power supply system according to any one of Inventions I to J.
A power supply system characterized in that wheels (wheels 424) that enable traveling on a floor surface are provided at the lower end of the stand.

1,101,201,301,401,501 ... Power supply system 10,110,210 ... Cart 11,111,211 ... Cart body 12 ... Power receiving device 13 ... Spacer part 14 ... Support 14A ... Support main body 14B ... Support movable part 15 ... Top plate 15m ... Positioning mark 17 ... Caster 17F ... Front caster 17B ... Rear caster 17R ... Mounting ring part 20, 120, 220, 320, 420 ... Power supply body 21 ... Wall 22 ... Power supply device 23 ... Top plate position guidance Plate 24 ... Caster guide plate 25 ... Wall cart position mark 26 ... Floor cart position mark 121 ... Shelf 131 ... Pillar part 132 ... Horizontal shelf part 133 ... Storage part 134 ... Positioning part 221, 321 ... Power supply body main body 221a, 321a ... Guide groove 221b, 321b ... Positioning step portion 230 ... Positioning sensor 240 ... Positioning light source 250 ... Positioning mark 221 for casters ... Feeding body main body 221a ... Guide groove 221b ... Positioning step portion 421 ... Feeding body main body 422 ... Positioning portion 422a ... Protruding portion 422b ... 1st contact side surface 422c ... 2nd contact side surface 423 ... Support column 424 ... Wheel 425 ... Connecting part 426 ... Standing leg part 427 ... Grip part

Claims (12)

It is a power supply system that can perform non-contact power supply from the power supply unit to the power receiving unit.
A power supply body equipped with the power supply unit and
Equipped with the power receiving unit and equipped with a cart that can move on the floor.
By arranging the power feeding unit and the power receiving unit in close proximity to each other, it is possible to perform non-contact power feeding from the power feeding unit to the power receiving unit.
A power feeding system, wherein the cart is stopped at a predetermined position with respect to the power feeding body, so that the power feeding unit and the power receiving unit are arranged so as to be close to each other so that power can be supplied. The power supply system according to claim 1.
The feeding body is composed of a wall and is composed of a wall.
The feeding portion is arranged so as to be exposed on the surface of the wall.
The power receiving portion is arranged on the side surface of the vertically extending pillar portion constituting the cart.
A power feeding system, wherein the cart is stopped at a predetermined position with respect to the power feeding body, so that the power feeding unit and the power receiving unit are arranged so as to face each other in a horizontally close state. The power supply system according to claim 2.
The feeding system is characterized in that the feeding body is formed with a positioning means for positioning the cart at a predetermined position with respect to the feeding body. The power supply system according to claim 1.
The feeding body is installed on the floor and
The power feeding unit is arranged so that the surface facing the power receiving unit faces upward when power is supplied.
The power receiving portion is arranged so that the surface facing the feeding portion faces downward when power is supplied.
A power feeding system, wherein the cart is stopped at a predetermined position with respect to the power feeding body, so that the power feeding unit and the power receiving unit are arranged so as to face each other in the vertical direction in close proximity to each other. The power supply system according to claim 4.
The feeding body is composed of a projecting body protruding upward from the floor surface.
The power feeding unit is a power feeding system characterized in that the surface facing the power receiving unit is housed in the power feeding body so that the surface facing the power receiving unit is exposed from the upper surface of the power feeding body when the power feeding unit is fed. The power supply system according to claim 4.
The feeding body is
It consists of a movable body that can move up and down with respect to the floor.
When it is lowered and held at the lowest position, at least the upper surface is located substantially the same as or below the floor surface, and when it is raised and held at the highest position, at least the upper surface is said. It is configured to be located above the floor and
The power feeding unit is a power feeding system characterized in that the surface facing the power receiving unit is housed in the power feeding body so that the surface facing the power receiving unit is exposed from the upper surface of the power feeding body when the power feeding unit is fed. The power supply system according to claim 5 or 6.
The feeding body is a feeding system characterized in that the feeding body is arranged in a place where a wall is not erected around the floor. The power supply system according to claim 5 or 6.
The power feeding body is a power feeding system characterized in that the power feeding body is arranged at a place where a wall is erected around the floor. The power supply system according to claim 1.
The feeding body is
It consists of a vertically long stand as a whole.
It has a pillar on the power supply side and has a pillar.
The feeding portion is arranged on the side surface of the feeding side pillar portion in an exposed state.
The power receiving portion is arranged on the side surface of the power receiving side pillar portion extending in the vertical direction constituting the cart.
A power feeding system, wherein the cart is stopped at a predetermined position with respect to the power feeding body, so that the power feeding unit and the power receiving unit are arranged so as to face each other in a horizontally close state. The power supply system according to claim 1.
The feeding body includes two vertically elongated stands as a whole.
The stand has a columnar feeding side column portion and has a columnar feeding side column portion.
The feeding portion is arranged on the side surface of the feeding side pillar portion in an exposed state.
The two stands stand on the floor surface in a state where the side surface on the side where the power feeding side pillar portion is arranged and the side surface on the opposite side are in contact with each other.
The power receiving portion is arranged on the side surface of the power receiving side pillar portion extending in the vertical direction constituting the cart.
A power feeding system characterized in that, when the cart is stopped at a predetermined position with respect to one of the stands, the power feeding unit and the power receiving unit arranged on the stand are arranged so as to face each other in a horizontally close state. The power supply system according to claim 9 or 10.
The power supply system is characterized in that the stand is formed with a positioning portion for positioning the cart at a predetermined position with respect to the power supply body. The power supply system according to any one of claims 9 to 11.
A power supply system characterized in that wheels that enable traveling on the floor surface are provided at the lower end of the stand.

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