JP2012023841A - Furniture system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a furniture system in which a non-contact power feeding device can be installed easily and at reasonable cost without special processing of inner walls and floors in a building etc.SOLUTION: A furniture system comprises an electric power unit 10 supplying power in a contact-free manner from a power supply device 30 on a table 1 to a power reception device 40 on a cart 2 at a feed position where the cart 2 is set to a prescribed position of the table 1. A feed side coil 31 is arranged on an undersurface 11b of a stationary side top board 11 with a power reception side coil 41 that is disposed to face the feed side coil 31 arranged on the cart 2 in a prescribed feed position R to the table 1 to place the feed side coil 31 and the power reception side coil 41 in proximity. An electromagnetic induction caused by an electric current generated in the feed side coil 31 produces an electric current in the power reception side coil 41 to induce non-contact power feeding.

Description

  The present invention relates to a fixture system that supplies power from a fixed fixture to a mobile fixture.

  Conventionally, movable multi-purpose carts that can place and store electronic components, etc., have been widely used as nurse skirts in hospitals and nursing homes, etc. Due to the increased use of electronic devices such as information terminals, multi-purpose carts that are provided with a battery and a power cord and that can supply power to the electronic devices used on the cart have become common.

  According to the cart using the power cord as described above, it takes time and effort to plug the power cord into the outlet when powering the battery, and when powering multiple carts at the same time, it was installed on the inner wall of the office Many power cords are arranged between the outlet and the cart, and the floor surface becomes complicated, so improvements can be made from the viewpoint of simplifying the power feeding operation, making the cordless on the floor surface, and improving the appearance of the room. It was expected.

In view of the above points, a non-contact power supply device using electromagnetic induction generated between a power supply side coil provided on the floor of a building and a power reception side coil mounted on the mobile device is used to For example, Patent Document 1 proposes a power supply method for supplying power.
According to this method, the power feeding unit is provided on the floor surface, the power receiving unit is provided on the cart, and the cart is disposed on the power feeding unit on the floor surface, thereby feeding power without interposing the power cable. It can be easily performed, and it is said that the appearance of the room can be improved without making the floor surface complicated by the power cord.

Japanese Patent No. 4469290

However, the conventional power feeding method has the following problems.
That is, according to the power feeding method of Patent Document 1, it is necessary to install a power feeding side coil on the floor surface of the work space / living space, and the power feeding side coil and the power receiving side coil in the left-right direction during power feeding by electromagnetic induction, Alternatively, there is a problem that it is necessary to provide a guide device for correcting the gap in the front-rear direction, and further processing is required due to processing on the floor surface, which complicates the structure.
In addition, since the power supply side coil is disposed on the floor surface, a conductive article is likely to be interposed between the power supply side coil and the power reception side coil, and non-contact power supply is performed with the article interposed. In such a case, there is a possibility that the conductive article may generate heat due to electromagnetic induction, and there is room for improvement in that respect.

  The present invention has been made in view of the above-described problems, and it is not necessary to perform special processing on the inner wall and floor surface of a building or the like, and a non-contact power feeding device can be incorporated simply and inexpensively. The purpose is to provide a fixture system.

  To achieve the above object, the fixture system according to the present invention is a fixture system including a fixed fixture and a movable fixture that is movably provided on the floor and can be used as a power source for an electronic device. The fixed fixture includes a power supply device having a power supply unit, and the mobile fixture has a predetermined power supply position with respect to the fixed fixture, and is disposed to face the power supply unit at the power supply position and is not in contact with the power supply unit. A power receiving device including a power receiving unit that supplies power is provided.

In the present invention, when the moving fixture and the stationary fixture are in a predetermined power feeding position, the power receiving portion provided in the moving fixture is disposed opposite to the power feeding portion provided in the fixed fixture, so that non-contact power feeding is performed. Therefore, it is possible to save the trouble of plugging the power cord into the outlet in the mobile furniture, and it is possible to eliminate the need for wiring many power cables on the floor surface.
In addition, since the power supply unit is provided on the fixed fixture placed on the floor surface, power supply can be easily and inexpensively provided by placing the fixed fixture indoors, avoiding the provision of the power supply unit directly on the floor surface. Department can be deployed. Moreover, since it is not necessary to process the floor structure, there is an advantage that it is possible to avoid that the use in the office is limited.

Moreover, in the fixture system which concerns on this invention, it is preferable that a feed part is attached to the side surface of the vertical direction of a fixed fixture, and a power receiving part is arrange | positioned facing a feed part in a feeding position.
In the present invention, the feeding portion is arranged on the mounting surface facing the side of the fixed fixture in a direction (vertical direction) perpendicular to the floor surface, and the power receiving portion is opposed to the feeding portion of the fixed fixture on the outer peripheral side surface of the movable fixture. By arranging so that the conductive article is not placed on the power feeding part and the power receiving part, the conductive article is placed between the power feeding side coil forming the power feeding part and the power receiving side coil forming the power receiving part. Non-contact power feeding is performed in an intervening state, and it is possible to prevent a problem that the conductive article generates heat due to electromagnetic induction.

Moreover, in the fixture system which concerns on this invention, it is preferable that a feed part is attached to the slope which inclines with respect to the horizontal surface of a fixed fixture, and a power receiving part is arrange | positioned facing a feed part in a feeding position.
In the present invention, the power feeding unit and the power receiving unit are arranged on the slope inclined with respect to the horizontal plane of the fixed fixture, and the power receiving unit is arranged on the outer peripheral side surface of the mobile fixture so as to face the power feeding unit of the fixed fixture. In this way, non-contact power feeding is performed in a state where the conductive article is interposed between the power feeding side coil forming the power feeding section and the power receiving side coil forming the power receiving section. Can be prevented from generating heat due to electromagnetic induction.

Further, in the fixture system according to the present invention, the fixed fixture can accommodate at least a part of the mobile fixture and has a storage portion provided with a power feeding portion, and the mobile fixture is in a portion received in the storage portion. A power receiving unit may be provided.
In this case, it is possible to supply power while at least a part of the moving fixture is housed in the housing portion of the stationary fixture, and it is possible to reduce the occupied area of the fixture and to effectively use the space. is there.

Moreover, in the fixture system which concerns on this invention, it is preferable to provide the guide means which guides a moving fixture to the electric power feeding position which can be fed between a electric power feeding part and a power receiving part.
In the present invention, since the mobile fixture can be guided to a power supply position where power can be supplied by the guide means, the power supply unit and the power reception unit can be easily aligned, and the mobile fixture for non-contact power supply can be provided. Movement can be performed efficiently.

Moreover, in the fixture system which concerns on this invention, it is preferable that a guide means is a hanging piece extended in the perpendicular direction downward from the upper direction of an accommodating part.
In this invention, it becomes the state which the guide means which consists of a hanging piece was stored in the accommodating part of a fixed fixture, and it is hard to expose to the exterior and can improve the appearance as a fixture.

In addition, the fixture system according to the present invention includes a switch mechanism that supplies current to the power feeding unit when the mobile fixture senses that the power feeding unit and the power receiving unit are disposed in the proximity of the power feeding position. Preferably it is.
In the present invention, current is supplied to the power receiving unit only when the mobile unit is arranged at a position where the power feeding unit and the power receiving unit are close to each other so that power can be supplied. Electric power can be reduced.

Moreover, in the fixture system which concerns on this invention, it is preferable that the stopper means which hold | maintains a movable fixture in an electric power feeding position is provided.
In the present invention, since the moving fixture can be held at a predetermined feeding position where the feeding portion and the receiving portion are arranged close to each other by the stopper means, it is not intended for the moving fixture even during feeding. It is possible to prevent a problem that an external force is applied and the power supply state is released.

  According to the fixture system of the present invention, when the mobile fixture and the fixed fixture are in a predetermined power feeding position, the power receiving portion provided in the mobile fixture is disposed opposite to the power supply portion provided in the fixed fixture. In addition, since non-contact power feeding is performed, it is possible to simply and inexpensively provide a power feeding unit by installing a stationary fixture, and it is possible to easily feed power to the mobile fixture. Furthermore, there is an advantage that a non-contact power feeding apparatus can be incorporated easily and inexpensively without requiring special processing on the inner wall and floor surface of a building or the like.

It is a perspective view which shows an example of the fixture system by the 1st Embodiment of this invention. It is a sectional side view of the fixture system shown in FIG. FIG. 2 is a top view in which a part of the fixture system shown in FIG. 1 is omitted. It is the figure which looked at the fixture system shown in FIG. 1 from the front. It is a perspective view which shows the structure of an electric power feeder. It is a top view of the limit part of the electric power feeder shown in FIG. It is the figure which showed typically the connection structure of the power supply device. It is a perspective view which shows the fixture system by 2nd Embodiment. It is a perspective view which shows the fixture system by 3rd Embodiment. It is a perspective view which shows the power receiving apparatus in the fixture system by 4th Embodiment. It is a side view of the electric power feeding state by the power receiving apparatus shown in FIG. It is a side view which shows the fixture system by 5th Embodiment.

  Hereinafter, a fixture system according to an embodiment of the present invention will be described with reference to the drawings.

(First embodiment)
As shown in FIGS. 1 to 4, the fixture system according to the first embodiment can be used in combination with a table 1 (fixed fixture) provided in a nurse station such as a hospital or a nursing facility, and the table 1. There is a cart 2 (movable fixture) that can be used by moving on the floor surface F away from the table 1, and the cart 2 is combined with a predetermined position of the table 1 (hereinafter referred to as this position). Is referred to as “power supply position R”), and the power supply device 10 that performs non-contact power supply from the power supply device 30 provided in the table 1 to the power reception device 40 provided in the cart 2 is provided.
Here, in the following description, the left-right direction on the paper surface in which the cart 2 approaches and separates from the table 1 in FIG. 2 is referred to as “front-rear direction X”, and the left side of the paper surface (the cart 2 side relative to the table 1) is “front”. Similarly, the right side of the drawing is “back”.

  The table 1 is disposed at a fixed position in a state of being placed on the floor surface F, and includes the fixed-side top plate 11 supported from below by a pair of inverted T-shaped legs 12 and 12. A storage portion 13 that can store a part of the cart 2 is provided below the top plate 11. That is, in the side view shown in FIG. 2, the fixed-side top plate 11 projects from the upper end support portions 12 a of the leg portions 12 and 12 in a substantially horizontal direction.

  The fixed-side top plate 11 has a substantially rectangular shape in plan view, and has a power supply opening 11c at the center thereof, and a power supply accommodation box 14 having an open upper surface is fitted therein. The power supply accommodation box 14 accommodates an outlet (not shown) that can be connected to the outside, and the power supply device 30 can be powered from this outlet. In addition, the pair of leg portions 12 and 12 are provided at positions close to the opposing short sides of the fixed-side top plate 11, respectively.

  In addition, electricity is supplied to the lower surface 11b of the fixed-side top plate 11 from an outlet accommodated in the power supply accommodation box 14, and a box for performing non-contact power supply to the power receiving device 40 provided on the cart 2 side. The power supply device 30 having a shape is fixed. The power feeding device 30 will be described later together with the power receiving device 40.

  The cart 2 is provided with a gantry 21 provided with casters 25 as traveling means capable of traveling on the floor surface F, a storage unit 22 installed on the gantry 21 and capable of storing articles, and provided above the storage unit 22. The moving top plate 20 on which an electronic device such as an information terminal can be placed on the upper surface 20a is schematically configured.

The storage unit 22 is composed of a pair of left and right side frames 23, 23 that form a side-view inverted U-shape standing on the left and right side edges on the gantry 21. Each side frame 23 extends horizontally from the front column 231 provided on the front side, the rear column 232 provided on the rear side, from the upper end of the front column 231 toward the rear side, and is connected to the rear column 232. It is framed by the horizontal rail 233 made.
The front support column 231 and the rear support column 232 that face in the vertical direction serve as protective members that prevent damage to the stored items due to collision with an obstacle or the like when the cart 2 is operated. A plurality of wire members 234 are installed between the front and rear support columns 231 and 232 along the front-rear direction X at a desired interval in the vertical direction.

The left and right side frames 23, 23 are connected to each other by a connecting rod 24 that faces in the left-right direction.
In addition, a box-shaped power receiving device 40 (between the left and right side frames 23, 23, which can accommodate a battery for an electronic device mounted on the moving-side top plate 20 at substantially the same height as the horizontal rail 233 ( Details will be described later).

  Between the left and right side frames 23, 23 in the storage unit 22, upper and lower two-stage trays 26, 26 that can store the stored items are arranged, and each tray 26 has both front and rear columns in each side frame 23. It is detachably supported by a wire member 234 installed between 231 and 232.

The upper portions of the left and right front support columns 231 and 231 are each formed in an arc shape at a position spaced upward from the upper surface of the storage portion 22, and are bent in an arc shape, The bent portion forms the cart operating handle portions 27 and 27, and the forward portion forms the top plate support portions 28 and 28, respectively. On the left and right top plate support portions 28, 28, the moving side top plate 20 is placed and fixed.
Thereby, between the horizontal rail 233 which comprises the upper part of the accommodating part 22, and the left-and-right top board support parts 28 and 28 and the lower surface 20b of the movement side top board 20, both the left-right direction orthogonal to a front side and the front-back direction And a recess 29 whose rear side is closed by the handle portion 27 is formed.

  The concave portion 29 is configured such that the fixed-side top plate 11 of the table 1 enters when the cart 2 and the table 1 are close to or in contact with each other and positioned at the power feeding position R. That is, the position in the height direction is formed so as to be substantially equal to the fixed-side top plate 11 of the table 1, and the top-plate support portions 28, 28 are arranged so that the fixed-side top plate 11 can be inserted. The distance between the horizontal rails 233 and 233 is set. Further, with the fixed-side top plate 11 of the table 1 inserted into the recess 29, the storage portion 22 of the cart 2 infiltrates below the fixed-side top plate 11 of the table 1, and the cart-side moving-side top plate 20 and The top plate support portions 28 and 28 are located above the fixed side top plate 11 of the table 1. Accordingly, the storage unit 22 of the cart 2 is used under the fixed side top plate 11 of the table 1 while the personal computer or the like is placed on the moving side top plate 20 of the cart 2. Can do.

A stopper 51 is fixed to each of the top plate support portions 28 and 28. The upper surface of the stopper 51 also serves as a top plate receiving member that supports the lower surface 20 b of the moving-side top plate 20 by projecting upward from the top plate support portion 28.
The lower portion of the stopper 51 is provided so as to hang from the lower surface of the top plate support portion 28 on the rear side from the handle portion 27 and further on the front side from the rear end 20c of the moving side top plate 20 of the cart 2. A facing hook piece 51a is provided.
The lower portion of the stopper 51 comes into contact with the edge portion 11 d of the fixed side top plate 11 of the table 1 when the fixed side top plate 11 of the table 1 enters the recess 29. Regulates the depth of entry.

  As shown in FIGS. 1 to 4, the moving-side top plate 20 overlaps the upper surface 11 a of the fixed-side top plate 11 at a predetermined position with an interval in the height direction at the power feeding position R with respect to the table 1. Yes. The moving-side top plate 20 can be operated from the front side of the cart 2 by placing an electronic device such as a personal computer (reference numeral P in FIG. 1) on the upper surface 20a, and is placed on the moving-side top plate 20. The rear side outer peripheral portion 20c (FIG. 1) protrudes upward so that the electronic device does not fall to the rear side.

  An insertion hole 20d is provided in a predetermined position on the moving-side top plate 20 in the thickness direction so that a power cable (not shown) connected to the outlet on the output side of the power receiving device 40 is provided on the lower surface 20b. It is inserted from the side toward the top of the top plate.

Furthermore, a pair of cart guide members 16, 16 that guide the cart 2 when the cart 2 is moved from the lower surface 11 b to move the cart 2 to enter the concave portion 29 on the lower surface 11 b of the fixed top plate 11. (Guide means, hanging pieces) are provided.
The cart guide members 16, 16 are a pair of rod-like members disposed on both sides of the cart 2 when the fixed-side top plate 11 enters the recess 29, and are bent in the middle of the extending direction. As shown in FIG. 3, the pair of cart guide members 16, 16 are separated from each other in the lateral width of the cart 2 at the front end 16 a that is the front side, that is, the lateral width between the side frames 23, 23. It is larger than the size and gradually decreases toward the rear end 16c, becomes substantially equal to the lateral width of the cart 2 at the bending point 16b, and extends from the proximal end 16a to the distal end 16c.

  For this reason, even if the position of the cart 2 is shifted when the cart 2 is moved and the fixed-side top plate 11 of the table 1 enters the recess 29, the rear column 232 of the cart 2 abuts against the cart guide member 16. Thus, the cart 2 is guided to a correct position in the left-right direction. Further, when the cart 2 is moved toward the table 1 to a predetermined position, the edge portion 11d of the fixed-side top plate 11 of the table 1 is brought into contact with the stopper 51 and the movement is restricted.

Next, the power supply device 10 including the power supply device 30 provided on the table 1 and the power reception device 40 provided on the cart 2 will be described in detail with reference to the drawings.
As shown in FIG. 2, the power supply device 10 brings a power feeding side coil 31 provided on the table 1 and a power receiving side coil 41 provided on the cart 2 close to each other, and receives power by electromagnetic induction generated by a current of the power feeding side coil 31. Non-contact power feeding is performed by generating a current in the side coil 41.

  As shown in FIGS. 1, 5, and 7, the power supply device 30 includes a cover body 33 in which a power supply side coil 31 (power supply unit) including a frequency converter 35 and a switch unit 32 (switch mechanism) have a thin box shape. The power supply side coil 31 is connected to an outlet (not shown) provided on the fixed side top plate 11 of the table 1 via a power cable 34 (see FIG. 1). In FIG. 1, the frequency converter 35 is housed in a cover different from the cover body 33.

The cover body 33 has an open top surface and is fixed at a predetermined position on the bottom surface 11 b of the fixed-side top plate 11. The cover body 33 is provided with an opening 33a into which a convex portion 48 of a power receiving device 40 on the cart 2 side, which will be described later, can enter.
The power supply side coil 31 is provided so as to be exposed on the lower surface of the cover body 33 with the coil power supply surface 31a facing downward. At this time, the surface direction of the coil power supply surface 31 a is a horizontal direction and is flush with the lower surface of the cover body 33.

As shown in FIG. 5 and FIG. 6, the switch portion 32 has a working end of the rotation operation plate 322 when the rotation operation plate 322 provided with the spring member 321 rotates against the bias of the spring member 321. The switch 323 is turned on at 322a.
The rotation operation plate 322 has a substantially fan-shaped rotation plate 322A in plan view that rotates about a rotation axis 322c in a direction orthogonal to the bottom surface 33b of the cover body 33, and one end (base) of the rotation plate 322A in the circumferential direction. At the end 322b), an overhanging piece 322B protruding outward in the radial direction of the rotating plate 322A is provided. Further, the projecting piece 322B was urged to the outer peripheral part forming the arc of the rotary operation plate 322 in a state where the projecting piece 322B was disposed at the position of the opening 33a of the cover body 33, that is, the position where the approach path of the convex portion 48 was blocked. The spring member 321 is attached, that is, the rotation operating plate 322 is pressed against the protruding piece 322B by the convex portion 48 entering the cover body 33 from the opening 33a, thereby resisting the bias of the spring member 321. Thus, it rotates in one direction (in the opposite direction to the clockwise direction in the figure) around the rotation shaft 322c, and moves to the position of the two-dot chain line in FIG.

  The switch 323 is a lever-type switch, and the lever portion 323a can selectively take an on / off position depending on the position of the working end 322a of the rotary operation plate 322. That is, the switch 323 is in an off state when the rotation operation plate 322 is not rotating, and the lever portion 323a is pressed by the action end 322a by the rotation of the rotation operation plate 322 to be in an on state. Is flowing.

  Next, as shown in FIGS. 4 and 7, the power receiving device 40 includes a power receiving side coil 41 (power receiving unit) provided with a rectifier 41 b, and a battery 42 connected to the power receiving side coil 41 via a voltage converter 43. Are housed in a thin box-shaped cover body 44, and a power cable (not shown) for an electronic device used on the moving-side top plate 20 is connected to the output side of the battery 42.

  The power reception side coil 41 is a coil of the power supply side coil 31 in a state where the cart 2 is positioned at the power supply position R with respect to the table 1 with the coil power reception surface 41a facing upward and exposed on the upper surface 44b of the cover body 44. It arrange | positions in the position which opposes the electric power feeding surface 31a with a space | interval.

  As shown in FIG. 8, the battery 42 includes a battery main body 421, a charge control unit 422 that controls charge input from the power receiving side coil 41, and an output control unit 423 that controls a voltage output from the battery main body 421. And.

  The front side surface 44b of the cover body 44 includes a power supply display unit (not shown) that displays a non-contact power supply state, and a charge display unit (not shown) that displays a charge state of the battery 42. Is provided. The power supply display unit and the charge display unit use light emitting diodes (LEDs), which are connected to the voltage converter 43 and the charge control unit 422, respectively, and are lit in response to received signals.

  In the power supply device 10 configured as described above, when the power feeding side coil 31 and the power receiving side coil 41 are brought close to each other, the switch 323 of the switch unit 32 is turned on in the power feeding device 30, for example, AC 100V electricity is supplied by the DC power source. It is converted to DC 24V and flows to the power supply side coil 31. Then, current is generated in the power receiving side coil 41 by electromagnetic induction caused by the current in the power feeding side coil 31, and non-contact power feeding is performed. Further, in the power receiving device 40, the voltage supplied by the power receiving side coil 41 is converted to 17V DC by the voltage converter 43 and charged to the battery body 421. At the time of output, the voltage is converted to 15V DC by the output control unit 423, and the power cable Will be output via.

Next, the operation of supplying power to the power receiving device 40 of the cart 2 and the operation of the above-described fixture system will be described in detail based on the drawings.
As shown in FIGS. 1 to 4, when the battery 42 mounted on the cart 2 is charged, that is, when electricity is supplied to the power receiving device 40, the cart 2 is disposed at a predetermined power feeding position R on the table 1. Specifically, the cart 2 is moved so as to be close to the table 1 and is moved into the accommodating portion 13 of the table 1. At this time, by causing the cart 2 to enter between the pair of cart guide members 16, 16, the cart 2 is guided along the cart guide members 16, 16 to a predetermined power feeding position R.

  When the cart 2 is disposed at the power feeding position R, the power receiving side coil 41 of the power receiving device 40 of the cart 2 approaches the power feeding side coil 31 of the power feeding device 30 of the table 1, and electricity flows through the power feeding device 30. That is, as shown in FIGS. 5 and 6, when the cart 2 is disposed at the power feeding position R, the convex portion 48 provided on the cover body 44 of the power receiving device 40 of the cart 2 is the cover body of the power feeding device 30. It enters the opening 33a of 33. Then, the projecting portion 322B of the switch portion 32 is pressed by the convex portion 48, whereby the rotation operating plate 322 resists the bias of the spring member 321 in one direction around the rotation shaft 322c (clockwise in the figure). The lever portion 323a is pressed by the action end 322a due to the rotation of the rotating operation plate 322, and the lever portion 323a is turned on, so that a current flows through the power supply side coil 31.

Next, since the power feeding side coil 31 and the power receiving side coil 41 are close to each other, when a current flows through the power feeding side coil 31, a current is generated in the power receiving side coil 41 due to electromagnetic induction caused by the current in the power feeding side coil 31. Thus, non-contact power feeding is performed. Further, in the power receiving device 40, the voltage supplied by the power receiving coil 41 is converted to an appropriate voltage via the voltage converter 43 and charged to the battery body 421, and is converted into a DC voltage by the output control unit 423 at the time of output. Thus, non-contact power feeding is performed to supply power to the power receiving device 40 of the cart 2.
In this way, it is possible to secure the power source of the electronic equipment to be used from the power cable wired on the moving side top plate 20 of the cart 2 by non-contact power feeding, and after charging the battery 42, the cart 2 is placed on the table. It is possible to move to a place away from 1 and connect the electronic device to the battery 42 on the moving side top plate 20 to use it for a long time.

In addition, when the cart 2 and the table 1 are in a state where the predetermined power feeding position R is established, the power receiving side coil 41 provided in the cart 2 is disposed opposite to the power feeding side coil 31 provided in the table 1, Since non-contact power feeding is performed, it is possible to save the trouble of inserting the power cord into the outlet in the cart 2, and it is possible to eliminate the need for wiring many power cables on the floor surface.
In addition, since the power supply side coil 31 is provided on the table 1 placed on the floor surface F, it is easy to avoid placing the power feeding unit directly on the floor surface F and placing the table 1 indoors. In addition, the power feeding unit can be provided at low cost. Moreover, since it is not necessary to process the floor structure, there is an advantage that it is possible to avoid that the use in the office is limited.
Furthermore, power can be supplied while at least a part of the cart 2 is accommodated in the accommodating portion 13 of the table 1, the area occupied by the fixture can be reduced, and the space can be effectively utilized.

  Furthermore, since the cart 2 can be guided to the power feeding position R where power can be fed by the cart guide members 16, 16, the positioning of the power feeding side coil 31 and the power receiving side coil 41 can be easily performed. The cart 2 for contact power feeding can be efficiently moved. In addition, the cart guide member 16 made of a hanging piece is in a state of being accommodated in the accommodating portion 13 of the table 1, and is hardly exposed to the outside, so that the appearance as a fixture can be improved.

In addition, since the current is supplied to the power receiving side coil 41 only when the cart 2 is arranged at a position where the power feeding side coil 31 and the power receiving side coil 41 are close to each other and can feed power, Standby power can be eliminated and power consumption can be reduced.
Further, the cart 2 can be held by the stopper 51 at a predetermined power feeding position R in which the power feeding side coil 31 and the power receiving side coil 41 are disposed close to each other. It is possible to prevent a problem that an unintended external force is applied and the power supply state is released.

As described above, in the furniture system according to the present embodiment, the cart 2 and the table 1 are provided in the cart 2 with respect to the power supply side coil 31 provided in the table 1 when the cart 2 and the table 1 are in the predetermined power supply position R. Since the received power receiving side coil 41 is arranged oppositely and non-contact power feeding is performed, the power feeding side coil 31 can be easily and inexpensively provided by installing the table 1, and the cart 2 can be easily fed. be able to.
Furthermore, there is an advantage that a non-contact power feeding apparatus can be incorporated easily and inexpensively without requiring special processing on the inner wall and floor surface of a building or the like.

  Next, another embodiment of the fixture system according to the present invention will be described with reference to the accompanying drawings. The same reference numerals are used for the same or similar members and parts as those in the first embodiment. A configuration different from that of the first embodiment will be described.

(Second Embodiment)
As shown in FIG. 8, the fixture system according to the second embodiment is provided with a power supply station 6 (fixed fixture) instead of the table 1 described above, and the side surface in the vertical direction provided in the power supply station 6. A plurality of (here, three) power supply side coils 31 (power supply units) are provided, and a power reception side coil 41 (power reception unit) corresponding to these power supply side coils 31 is provided in the cart 2 (mobile appliance).
In the power supply station 6, both left and right ends of a flat plate member 61 with the surface direction oriented in the vertical direction are supported by legs 62, 62, and a predetermined power supply position R (R1, R1) on one surface (power supply surface 61a) side thereof. The cart 2 is positioned at R2 and R3), and contactless power feeding is performed at the power feeding position R.

  The flat plate member 61 is disposed above the floor surface F by a predetermined height, and three power supply positions (power supply positions R1, R2, R3) are provided on the power supply surface 61a so that power can be supplied to the three carts 2 at the same time. ) Is provided. Each of the power feeding positions R1, R2, and R3 is positioned at a predetermined position on the lower end side of the power feeding surface 61a of the flat plate member 61 by positioning the cart 2 by a flat guide member 63 (guide means) protruding forward from the power feeding surface 61a. The power supply side coil 31 is fixed to. The coil power supply surface 31 a of the power supply side coil 31 is in a vertical direction parallel to the power supply surface 61 a of the flat plate member 61.

The guide member 63 is fixed in a state in which the plate surface direction projects in a direction orthogonal to the power feeding surface 61 a of the flat plate member 61. The distance between the adjacent guide members 63 and 63 is the same as or slightly larger than the width of the cart 2 in the left-right direction.
In addition, a convex surface 64 is provided on the power supply surface 61 a of the flat plate member 61 so as to project forward and define the position of the cart 2 in the front-rear direction X at a position above the power supply side coil 31. The cart 2 is positioned at the power feeding position R by bringing the rear portion of the cart 2 (the rear column 232 of the cart 2 or the rear end of the moving side top plate 20) into contact with the convex surface 64 and stopping. .
In the power feeding device 30 according to the second embodiment, the switch unit 32 and the cover body 33 (see FIG. 1) of the first embodiment described above are omitted, and the power feeding positions R1, R2, and R3 are omitted. Electricity is supplied to the power supply side coil 31 by a power cable (not shown).

  In the power receiving device 40 of the cart 2 according to the second embodiment, the power receiving side coil 41 and the battery (not shown) are integrated with the cover body 44 (see FIG. 1) as in the first embodiment described above. It is not the structure accommodated, and each is arrange | positioned in the position which isolate | separated. The power receiving side coil 41 is fixed at a position corresponding to the power feeding side coil 31 on the rear side of the cart 2 with the surface direction of the coil power receiving surface 41a oriented in the vertical direction. The battery is connected to the power receiving side coil 41 and can be provided on the lower surface 20b of the moving side top plate 20 although not particularly shown.

In the present fixture system, the cart 2 is moved between the guide members 63 and 63 so that the right direction of the cart 2 is positioned and guided to a predetermined feeding position R, and the feeding side coil 31 of the feeding station 6 and the cart are fed. The two power receiving coils 41 are arranged opposite to each other with a certain gap, and non-contact power feeding can be performed at the power feeding position R.
In the second embodiment, the power supply side coil 31 is arranged on the power supply surface 61a of the flat plate member 61 facing sideways in the power supply station 6 in a direction (vertical direction) perpendicular to the floor surface F, and the cart 2 By disposing the power receiving side coil 41 on the outer peripheral side of the power supply side so as to face the power feeding side coil 31, no conductive article is placed on the upper surfaces of the power feeding side coil 31 and the power receiving side coil 41, thereby Non-contact power feeding is performed in a state where the conductive article is interposed between the coil 31 and the power receiving side coil 41, and a problem that the conductive article generates heat due to electromagnetic induction can be prevented.

(Third embodiment)
Next, as shown in FIG. 9, the fixture system according to the third embodiment replaces the cart 2 below the shelf 72 instead of the power supply station 6 (see FIG. 8) of the second embodiment described above. It is set as the fixed shelf 7 (fixed fixture) provided with the electric power feeder 30 which has the accommodating part 71 which can accommodate some. In addition, since the structure of the power receiving apparatus 40 with which the cart 2 and the cart 2 were equipped is the same as that of 2nd Embodiment shown in FIG. 8, detailed description is abbreviate | omitted here.

The storage portion 71 of the fixed shelf 7 constitutes a space surrounded by the side plates 73, 73 in the left-right direction, the back plate 74, and the lower surface (the top surface 72a) of the shelf 72, and the front surface into which the cart 2 enters and exits. Is an opening. In the fixed shelf 7, the back plate 74 corresponds to the flat plate member 61 of the second embodiment described above, and the back plate 74 has two feeding positions ( Feeding positions R1, R2) are provided.
Each of the feeding positions R1 and R2 protrudes downward from the top surface 72a, and the cart 2 is positioned by a guide member 75 (guide means, hanging piece) whose protrusion extends in the front-rear direction X. A feeding coil 31 is fixed at a predetermined position on the lower end side. The coil power supply surface 31 a of the power supply side coil 31 is in a vertical direction parallel to the surface direction of the back plate 74. As the guide member 75, a plate-like member, a pipe material, or the like can be used.

  In the fixture system according to the third embodiment, by moving the cart 2 between the guide members 75 and 75, the left and right directions of the cart 2 are positioned and guided to a predetermined power feeding position R, and the fixed shelf 7 The power feeding side coil 31 and the power receiving side coil 41 of the cart 2 are arranged to face each other with a certain gap, and non-contact power feeding can be performed at the power feeding position R.

(Fourth embodiment)
Next, as shown in FIGS. 10 and 11, the fixture system according to the fourth embodiment is a power feeding device 30 provided on the lower surface 11 b of the fixed top plate 11 of the table 1 in the first embodiment described above. On the other hand, a power receiving device 40 provided in a cart on the cart 2 side is rotatably attached to, for example, the rear end of the cart 2 shown in FIG. 1, and the power receiving side coil 41 of the power receiving device 40 is fixed to the fixed side coil only during non-contact power feeding. 31 is arranged so as to be opposed to 31.
10 and 11, only the coils 31 and 41 are described inside the cover bodies 33 and 44, respectively.

In the power receiving device 40 on the cart 2 side, one end of the cover body 44 is provided with a rotation axis O in the left-right direction of the cart 2, and is supported so as to be rotatable in the direction of arrow E shown in FIG. That is, the cover body 44 can be moved in the horizontal direction in which the surface direction of the coil power receiving surface 41 a of the power receiving side coil 41 accommodated therein is opposed to the power feeding side coil 31 from the vertical direction. It can be rotated.
As a result, the coil power receiving surface 41a of the power receiving side coil 41 is in the horizontal direction only at the time of power supply, and can be oriented in the vertical direction during normal times outside the time of power supply. Can be prevented, and it becomes difficult for an electrically conductive article to intervene between the coil power feeding surface 31a and the coil power receiving surface 41a even during power feeding.

(Fifth embodiment)
Next, as shown in FIG. 12, the fixture system according to the fifth embodiment includes a power supply side coil 31 on the stationary fixture 8 side and a power reception side coil on the mobile fixture 9 side that is disposed opposite to the power supply side coil 31. 41 is attached to slopes 8a and 9a that are inclined with respect to the horizontal plane.
The fixed fixture 8 has an accommodating portion 81 into which the movable fixture 9 can enter, and a tapered first inclined surface 8a is provided at a joint corner between the top surface 82 and the back plate 83 of the accommodating portion 81, The power supply side coil 31 is fixed to a predetermined position of the first slope 8a with the coil power supply surface 31a oriented in parallel. On the other hand, the moving fixture 9 is a cart or the like, and is provided with a second inclined surface 9a that coincides with the first inclined surface 8a of the fixed fixture 8. The surface direction of the coil power receiving surface 41a is set at a predetermined position of the second inclined surface 9a. The power receiving side coil 41 is fixed in parallel.
In the fifth embodiment, the moving fixture 9 is arranged with respect to the stationary fixture 8 in a state where the power receiving side coil 41 is close to the power feeding side coil 31, so that the power feeding side coil 31 and the power receiving side coil 41 are electrically conductive. There is no problem that the article is not placed, whereby non-contact power feeding is performed with the conductive article interposed between the power supply side coil 31 and the power receiving side coil 41, and the conductive article generates heat by electromagnetic induction. Can be prevented.

As mentioned above, although the embodiment of the furniture system by this invention was described, this invention is not limited to said embodiment, In the range which does not deviate from the meaning, it can change suitably.
For example, in the present embodiment, the power supply device 10 using electromagnetic induction provided with the power supply side coil 31 and the power reception side coil 41 is used as non-contact power supply. However, the non-radiation type electromagnetic induction power transmission method is used. For example, a non-radiation type magnetic resonance method or a radiation type electromagnetic wave (microwave power transmission) method may be employed.

Further, the configuration of the table 1, the power supply station 6, the fixed shelf 7, the shape and size of the cart 2, the usage application of the cart 2, the cart guide member 16, the guide members 63, 75, and the like are not particularly limited.
Furthermore, the positions of the power supply device 10, the power supply device 30, and the power receiving device 40 can be set as appropriate according to conditions such as the shape of the fixed fixture and the mobile fixture.

1 table (fixed fixture)
2 carts (mobile fixtures)
6 Power supply station (fixed fixture)
7 Fixed shelf (fixed fixture)
DESCRIPTION OF SYMBOLS 10 Power supply device 11 Fixed side top plate 16 Cart guide member (guide means, hanging piece)
DESCRIPTION OF SYMBOLS 20 Moving side top plate 22 Storage part 23 Side frame 28 Top plate support part 29 Recessed part 30 Power feeding apparatus 31 Power feeding side coil (power feeding part)
32 Switch part (switch mechanism)
33 Cover body 40 Power receiving device 41 Power receiving side coil (power receiving unit)
42 battery 44 cover body 46 display board 48 convex part 63 guide member (guide means)
75 Guide member (guide means, hanging piece)
F Floor R Feeding position X Longitudinal direction

Claims (8)

A fixture system comprising a fixed fixture and a movable fixture that is movably provided on the floor and can be used as a power source for an electronic device,
The fixed fixture includes a power supply device having a power supply unit,
The mobile fixture has a predetermined power supply position with respect to the fixed fixture, and is disposed opposite to the power supply unit at the power supply position, and has a power reception unit that performs non-contact power supply with the power supply unit. A furniture system characterized by comprising: The power feeding unit is attached to a vertical side surface of the fixed fixture,
The fixture system according to claim 1, wherein the power reception unit is arranged to face the power supply unit at the power supply position. The power feeding unit is attached to a slope inclined with respect to a horizontal plane of the fixed fixture,
The fixture system according to claim 1, wherein the power reception unit is arranged to face the power supply unit at the power supply position. The fixed fixture is capable of accommodating at least a part of the movable fixture, and has an accommodating portion provided with the power feeding portion,
The fixture system according to any one of claims 1 to 3, wherein the mobile fixture includes the power receiving unit in a portion stored in the storage unit.   The fixture system according to claim 4, further comprising guide means for guiding the mobile fixture to the power supply position where power can be supplied between the power supply unit and the power receiving unit.   The fixture system according to claim 5, wherein the guide means is a hanging piece that extends vertically downward from above the accommodating portion.   A switch mechanism is provided that supplies current to the power feeding unit when the mobile fixture senses that the power feeding unit and the power receiving unit are disposed at the power feeding position close to each other. The fixture system according to any one of claims 1 to 6.   The fixture system according to any one of claims 1 to 7, further comprising stopper means for holding the movable fixture at the power feeding position.

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