JP2015024031A - Stretcher, bathing apparatus, and recharging system - Google Patents

Abstract

A technique convenient for charging a battery included in a stretcher is provided.
A charging system (50) is a charging system for charging a battery (45) of a stretcher (30) used together with a bathing device (10). The charging system 50 is used in a pair with the power transmission unit 104 provided in the bathing device 10 for non-contact charging of the battery 45 and the power transmission unit 104 for performing the non-contact charging, and is provided in the stretcher 30. A power receiving unit 46.
[Selection] Figure 5

Description

  The present invention relates to a stretcher, a bathing apparatus, and a charging system.

  2. Description of the Related Art Conventionally, a stretcher (transfer vehicle) having wheels has been used when bathing a person who is inconvenient and needs assistance (hereinafter referred to as a person requiring assistance). Among such stretchers, there is a type in which a table on which a person is placed is lifted and lowered electrically (for example, see Patent Document 1). The reason why the platform on which the person is placed is ascending / descending is, for example, enabling the assistant to perform the transfer work and the washing operation when getting on and off the bather without taking an unreasonable posture, etc. Is mentioned.

  In addition, the electric lift type stretcher disclosed in Patent Document 1 includes a battery so that a table on which a person can be placed can be moved up and down electrically, and this battery is connected to a charger after the stretcher is used. It has become.

JP 2003-159301 A

  When adopting a configuration in which the battery is removed from the stretcher and connected using a charger in the electric lift type stretcher, it is necessary to remove and install the battery after use, which increases the burden on the caregiver. easy. When the battery is installed in a place where it is difficult to remove, the work burden becomes particularly large. Further, in this configuration, for example, it is necessary to secure a place for the charger outside the bathroom, which may be annoying.

  As a method of charging the battery, there is also a method of charging the battery that is still attached to the stretcher from an outlet using a charging cable. However, in this method, it is necessary to move the stretcher to a dressing room or the like (a place where an outlet is provided) for charging. In this case, not only does it take time to move the stretcher to a dressing room or the like, but there also arises a problem that the room is occupied by the stretcher and becomes difficult to use. Further, in the case of this method, there is a concern that an electric shock accident or a failure of the device may occur due to water splashing on the connection portion of the charging cable.

  In view of the above, an object of the present invention is to provide a technique convenient for charging a battery provided in a stretcher.

  In order to achieve the above object, a charging system of the present invention is a charging system for charging a battery of a stretcher used together with a bathing device, and is a power transmission unit provided in the bathing device for non-contact charging of the battery. And a power receiving unit that is used in a pair with the power transmission unit to perform the contactless charging and is provided in the stretcher (first configuration).

  According to this configuration, the stretcher battery can be charged by placing the stretcher near the bathing apparatus. That is, according to this structure, the battery of the stretcher can be charged without performing the attaching / detaching operation of the battery. Moreover, according to this structure, in order to charge the battery of a stretcher, the effort which moves a stretcher from the bathroom in which a bathing apparatus is placed to another room can be saved. Further, in this configuration, since the battery is charged by non-contact charging, it is not necessary to expose an electrical contact for charging the battery, and the risk of an electric shock accident and a mechanical failure can be reduced. Furthermore, according to this structure, it can prevent that the battery remaining of the battery of a stretcher runs out during bathing work.

  In the charging system of the first configuration, the bathing device has a guide part for positioning the stretcher at a predetermined position, and the stretcher has an engaging part that engages with the guide part. And it is preferable that the said power transmission part is provided in the said guide part, and the said power receiving part is the structure (2nd structure) provided in the said engaging part. According to this structure, when a guide part and an engaging part engage and a stretcher is positioned in a predetermined position, non-contact charge will be performed. And according to this structure, since it is the structure which arrange | positions a power transmission part and a power receiving part in the part which comprises a positioning mechanism, it is easy to suppress the position shift between a power transmission part and a power receiving part. That is, according to this configuration, it is easy to appropriately charge the battery of the stretcher.

  In the charging system of the second configuration, the predetermined position is preferably a configuration (third configuration) that is a position where the stretcher is exchanged between the bathing device and the stretcher. According to this configuration, the stretcher battery can be charged all the time while the person requiring assistance (the bather) placed on the stretcher stretcher is moved to the bathing device together with the stretcher and bathed. Is possible. For this reason, it is not necessary to separately charge the battery after the bathing operation is completed.

  In order to achieve the above object, the stretcher of the present invention is a stretcher used together with a bathing device, which is a rechargeable battery, and a power transmission unit included in the bathing device for non-contact charging of the battery. And a power receiving unit used as a pair (fourth configuration).

  The stretcher having the fourth configuration may have a configuration (fifth configuration) further including a charging unit that controls charging of the battery. The charging unit may be provided on the bathing device side.

  The stretcher having the fourth or fifth configuration is preferably configured to perform the non-contact charging (sixth configuration) when positioned at a predetermined position with respect to the bathing apparatus.

  In the stretcher having the sixth configuration, it is preferable that the predetermined position is a configuration (seventh configuration) in which the stretcher is exchanged with the bathing apparatus.

  In order to achieve the above object, the bathing apparatus of the present invention is a bathing apparatus used together with a stretcher, and is a power receiving unit provided in the stretcher for non-contact charging of a battery included in the stretcher. It is the structure (8th structure) provided with the power transmission part used as a pair.

  It is preferable that the bathing apparatus having the eighth configuration is configured to start the non-contact charging (the ninth configuration) when the stretcher is positioned at a predetermined position with respect to the bathing apparatus.

  In the bathing apparatus having the ninth configuration, it is preferable that the predetermined position is a configuration (tenth configuration) in which the stretcher is exchanged with the stretcher.

  ADVANTAGE OF THE INVENTION According to this invention, the technique convenient for charging the battery with which a stretcher is equipped can be provided.

Schematic top view of a bathing apparatus according to an embodiment of the present invention Schematic side view of a bathing apparatus according to an embodiment of the present invention Schematic top view of a stretcher according to an embodiment of the present invention The schematic side view of the stretcher which concerns on embodiment of this invention The block diagram which shows the structure of the charging system which concerns on embodiment of this invention. The schematic sectional drawing for demonstrating the relationship between the power transmission part with which the charging system of this invention is equipped, and a power receiving part The figure for demonstrating the modification of the charging system which concerns on embodiment of this invention

Hereinafter, a stretcher, a bathing apparatus, and a charging system according to embodiments of the present invention will be described in detail with reference to the drawings.
<Schematic configuration of bathing device>

  First, a schematic configuration of a bathing apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2. The bathing apparatus according to the embodiment of the present invention is an apparatus used for bathing a person requiring assistance. FIG. 1 is a schematic top view of a bathing apparatus 10 according to the embodiment of the present invention. FIG. 2 is a schematic side view of the bathing apparatus 10 according to the embodiment of the present invention.

  As shown in FIGS. 1 and 2, the bathing apparatus 10 includes a gantry 11 fixed on the floor F, and a bathtub 12 that can be moved up and down with respect to the gantry 11. In order to make it easy to imagine that the bathtub 12 can be moved up and down, in FIG. 2, the state where the bathtub 12 is lowered is indicated by a solid line, and the state where the bathtub 12 is raised is indicated by a two-dot chain line. In addition, the figure of the state in which the bathtub 12 went up has shown only a part (upper part) of the bathtub 12. FIG.

  A cylindrical column 13 is erected substantially at the center of the gantry 11 (see FIG. 2; in FIG. 2, the column 13 is broken because it is not originally visible). The support 13 penetrates the bottom of the bathtub 12 in a liquid-tight manner. The bathtub 12 can be automatically moved up and down along the column 13 by an elevator mechanism (not shown). In addition, although the raising / lowering mechanism which raises / lowers the bathtub 12 is not specifically limited, For example, you may be comprised by the hydraulic apparatus (a hydraulic cylinder and a pump are included) which operate | move using an electric motor.

  A support base 14 having a substantially rectangular shape when viewed from above is fixed to the upper end of the column 13 so as to be horizontal. Guides extending horizontally in the width direction of the bathtub 12 (vertical direction in FIG. 1 and direction perpendicular to the paper in FIG. 2) are provided at both ends in the longitudinal direction (left and right direction in FIGS. 1 and 2) of the support base 14, respectively. Rails 15 are provided. The pair of guide rails 15 and 15 are arranged in parallel at the same height position.

  Two guide rods 16 that are arranged in parallel at an interval at the same height are disposed at a substantially central portion of the support base 14. Each guide rod 16 is provided so as to extend in a direction parallel to the guide rail 15, and both ends thereof are supported by attachment bases 17 fixed to the upper surface of the support base 14. There are a total of four mounting bases 17. A sliding portion 18 that slides along the guide rod 16 is attached to each guide rod 16. Each sliding portion 18 is attached to a slide portion 19 having a substantially rectangular shape in plan view, which is disposed so as to be sandwiched between two guide rods 16. For this reason, the slide part 19 also moves with the movement of the sliding part 18.

  The sliding portion 18 can be automatically moved by a horizontal movement mechanism (not shown). Although this horizontal movement mechanism is not specifically limited, For example, you may drive using an electric motor. Further, the moving range of the sliding portion 18 is limited by the mounting base 17. Further, each sliding portion 18 is provided with a lock member 18a that engages with a part of the stretcher portion T that has been slid from a stretcher, which will be described later, so that the stretcher portion T can be fixed to the slide portion 19. Yes. The lock state (fixed state) between the stretcher portion T and the slide portion 19 using the pair of lock members 18a, 18a can be released by an operation lever (not shown) provided on the stretcher portion T.

  On one of the side surfaces substantially parallel to the longitudinal direction of the gantry 11, a pair of positioning guide portions 20 and 20 for positioning a stretcher (details will be described later) laid on the side surface of the bathtub 12 at a predetermined position, They are arranged at predetermined intervals in the longitudinal direction. Each positioning guide portion 20 is provided with a guide recess 20a having a substantially semicircular outer shape. One of the pair of positioning guide parts 20 and 20 incorporates a power transmission part (not shown; details will be described later) for contactless charging (contactless charging).

  Further, between the pair of positioning guide portions 20, 20, a connecting portion 21 used for connecting the stretcher positioned at a predetermined position and the bathing apparatus 10 is provided. A through hole 21 a is provided on the upper surface of the connecting portion 21, and a limit switch (not shown) is disposed inside the connecting portion 21. This limit switch functions as a connection detection unit that detects the connection between the bathing apparatus 10 and the stretcher.

Around the upper surface of the bathtub 12, for example, an operation unit 22 is provided for an assistant to input instructions to the bathing apparatus 10. In the bathing apparatus 10 of the present embodiment, the operation unit 22 (having a plurality of input keys) is provided in three locations, but this configuration may be changed as appropriate. In addition, the bathing apparatus 10 is appropriately provided with hot water supply facilities necessary for bathing.
<Schematic configuration of stretcher>

  Next, a schematic configuration of the stretcher (transfer vehicle including wheels) according to the embodiment of the present invention will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic top view of the stretcher 30 according to the embodiment of the present invention. FIG. 4 is a schematic side view of the stretcher 30 according to the embodiment of the present invention. The stretcher 30 is used as a pair with the bathing apparatus 10. The stretcher 30 is detachably mounted with a stretcher T on which a bather (for example, a person who needs assistance) is placed. FIG. 3 shows a state where the stretcher T is not mounted.

  Each of the stretchers 30 includes a lower frame 31 and an upper frame 32 provided in a substantially rectangular shape in plan view. Casters 33 are attached to the lower ends of the four corners of the lower frame 31. In addition, it is preferable that the caster 33 can lock its rotation by a known lock mechanism (for example, a tire restraining method or a drum brake method).

  The stretcher 30 includes a pair of X-shaped link mechanisms 34 and 34 disposed to face each other. The pair of X-shaped link mechanisms 34 and 34 are provided so that their postures can be changed by the operation of the actuator 35. With the operation of the actuator 35, the pair of X-shaped link mechanisms 34 and 34 switches the posture, so that the upper frame 32 is raised or lowered with respect to the lower frame 31. That is, the stretcher 30 can raise and lower the stretcher portion T that is detachably mounted. FIG. 4 shows a state where the upper frame 32 (the stretcher portion T) is lifted by a two-dot chain line.

  The actuator 35 is not particularly limited, but has a configuration using an electric cylinder in the present embodiment. The actuator 35 is preferably configured to be operated by the remote controller 36. The remote controller 36 according to the embodiment is a wired remote controller, but may be a wireless remote controller. A battery 45 attached to the upper frame 32 is used as a power source for moving the actuator 35.

  The upper frame 32 is bent so that both ends in the longitudinal direction (left and right in FIGS. 3 and 4) can be used as the handles 37 and 37. A water receiving board 38 is attached on the upper frame 32 so as to be sandwiched between the pair of handles 37. A pair of bar members 39, 39 extending along the longitudinal direction of the stretcher 30 are disposed on the water receiving plate 38 (more precisely, the pair of bar members 39, 39 are connected to a connecting portion 39a. Are united). Then, on the pair of rod members 39, 39, the stretcher 30 extends in the width direction (vertical direction in FIG. 3 and perpendicular to the paper surface in FIG. 4), and has a length equivalent to the width of the water receiving plate 38. A pair of guide rails 40, 40 are fixed. The pair of guide rails 40, 40 has the same shape as the pair of guide rails 15, 15 provided in the bathing apparatus 10. Further, the distance between the pair of guide rails 40, 40 is also the same as the distance between the pair of guide rails 15, 15 provided in the bathing apparatus 10.

  In the stretcher 30, the height position of the water receiving plate 38 (the stretcher portion T) can be adjusted to an arbitrary position by the operation of the actuator 35, but these positions are detected at the uppermost position and the lowermost position. The lifting / lowering operation is automatically stopped by the action of the limit switch. In addition, a pair of lock members 41, 41 are provided at the center of the water receiving plate 38 to engage with a part of the stretcher portion T and fix the stretcher portion T on the water receiving plate 38. The locked state (fixed state) between the stretcher portion T and the water receiving disc 38 using the pair of lock members 41 and 41 can be released by using an operation lever (not shown) provided on the stretcher portion T. Yes.

  Further, on one side surface of the stretcher 30, a pair of disk portions 42 and 42 (which are engaged with a pair of guide recesses 20a provided in the bathing apparatus 10 (provided in the pair of positioning guide portions 20 and 20)). An example of the engaging portion of the present invention is provided. The pair of disk portions 42 and 42 are connected to the lower frame 31. Note that a power receiving unit 46 (details will be described later) for non-contact charging (non-contact charging) is mounted on one of the pair of disk units 42 and 42.

Further, an operation link 44 having a connection pin 43 is attached to the lower frame 31 at a position approximately in the middle of the pair of disk portions 42 and 42 while being biased downward by a biasing member (not shown). It has been. When the stretcher 30 approaches the bathing device 10 and the disk portion 42 is inserted into the guide recess 20a, the connection pin 43 is inserted into the through hole 21a of the connecting portion 21 provided in the bathing device 10. At this time, since the connection pin 43 turns on the limit switch (connection detection unit) built in the connection unit 21, the connection between the stretcher 30 and the bathing apparatus 10 can be confirmed. The coupling between the two can be released by the presence of a pedal (not shown) that can lift the connection pin 43 by stepping on the pedal.
<Bath flow using bathing device and stretcher>

  Here, the example of the bathing flow when bathing a person requiring assistance using the bathing apparatus 10 and the stretcher 30 described above will be briefly described.

  First, a person who needs assistance (a bather) is transferred from a bed or the like to a stretcher T (see FIG. 4) mounted on the stretcher 30. As described above, the stretcher 30 has a configuration in which the stretcher portion T can be lifted and lowered using an electric motor. Therefore, the height position of the stretcher portion T can be set to an appropriate position according to the bed height. For this reason, it is easy for a caregiver to perform transfer work of a caregiver. The stretcher 30 on which a person requiring assistance (a bather) is placed is carried by the assistant to the bathroom where the bathing apparatus 10 is installed.

  The assistant uses the positioning guide portion 20 (guide recess 20 a) provided on the side surface of the bathing device 10 and the disk portion 42 provided on the side surface of the stretcher 30 to place the stretcher 30 on the side of the bathing device 10. Is arranged (positioned) at a predetermined position. In conjunction with this positioning, the connection pin 43 is fitted into the through hole 21a of the connecting portion 21, and the connection between the bathing apparatus 10 and the stretcher 30 is completed.

  Next, the supporter operates the remote controller 36 to move the stretcher T (water receiving plate 38) up and down, and the height position between the guide rail 40 on the stretcher 30 side and the guide rail 15 on the bathing device 10 side. Are matched. In this embodiment, as an example, the height adjustment described above is completed when the height of the stretcher T reaches the uppermost position. When the height adjustment is completed, the locked state by the lock mechanism that fixes the stretcher portion T to the stretcher 30 is released as appropriate so that the stretcher portion T can be separated from the stretcher 30.

  Before and after this, the assistant operates the operation unit 22 of the bathing apparatus 10 to operate the horizontal movement mechanism (not shown), and moves the slide unit 19 from the bathing position P1 (shown by a solid line) to the transfer position P2 (broken line). (Refer to FIG. 1). After setting the slide part 19 to the transfer position P2, the assistant pushes the stretcher part T on which the person requiring assistance is placed to the bathing apparatus 10 side. Thereby, the stretcher portion T moves along the guide rails 15 and 40 by the rollers W provided on the lower surface thereof, and moves from the stretcher 30 to the bathing apparatus 10. When the stretcher portion T moves to a predetermined position, the stretcher portion T is locked to the slide portion 19 by the lock portion 18a.

  The caregiver confirms this locked state, operates the operation unit 22 of the bathing apparatus 10 to operate the horizontal movement mechanism, and moves the stretcher T to the bathing position P <b> 1 located at the center of the support base 14. Thereafter, the assistant operates the operation unit 22 of the bathing apparatus 10 to raise the bathtub 12 along the support column 13. By raising the bathtub 12, the stretcher T can be positioned in the bathtub 12, and a person requiring assistance can be arranged in the bathtub 12. In this state, by operating the operation unit 22 to supply hot water at an appropriate temperature into the bathtub 12, a person requiring assistance can be immersed in the hot water. Of course, the hot water in the bathtub 12 may be stored before the bathtub 12 is raised.

After bathing, the assistant operates the operation unit 22 to lower the bathtub 12 along the support column 13. As the bathtub 12 descends, the stretcher T on which the person requiring assistance is placed is positioned above the bathtub 12. Next, the assistant operates the operation unit 22 to move the stretcher unit T together with the slide unit 19 from the bathing position P1 to the transfer position P2 using a horizontal movement mechanism. When the stretcher portion T reaches the transfer position P2, the assistant can operate the operation lever (not shown) of the stretcher portion T to release the lock by the lock portion 18a and separate the stretcher portion T and the slide portion 19 from each other. And pull out the stretcher T to the stretcher 30 side. As a result, the person requiring assistance placed on the stretcher T is transferred to the stretcher 30.
<Charging system>

  As described above, the stretcher 30 is provided so that the stretcher portion T can be raised and lowered using the power supplied from the battery 45. The battery 45 is a rechargeable secondary battery. The charging of the battery 45 is performed when the stretcher 30 is positioned at a predetermined position with respect to the bathing apparatus 10 by using so-called electromagnetic induction type non-contact charging (in other words, the stretcher 30 is not connected to the bathing apparatus 10). (When connected). The aforementioned predetermined position is a position where the stretcher T can be exchanged between the stretcher 30 and the bathing apparatus 10. Hereinafter, the charging system according to the embodiment will be described in detail.

  FIG. 5 is a block diagram showing a configuration of the charging system 50 according to the embodiment of the present invention. As shown in FIG. 5, the charging system 50 that charges the battery 45 includes a connection detection unit 101, a control unit 102, a power supply circuit unit 103, and a power transmission unit 104 that are provided on the bathing apparatus 10 side. It is. The connection detection unit 101 corresponds to a limit switch provided inside the connection unit 21 described above. The control part 102 controls each part with which the bathing apparatus 10 is provided. The power supply circuit unit 103 can appropriately perform power conversion of power supplied from an external power supply and supply power to each unit of the bathing apparatus 10. The power transmission unit 104 is provided for non-contact charging (non-contact charging) of the battery 45, and is incorporated in one of the pair of positioning guide units 20 and 20, as described above.

  Further, the charging system 50 for charging the battery 45 includes a power receiving unit 46 and a charging unit 47 provided on the stretcher 30 side, as shown in FIG. The power receiving unit 46 is provided for non-contact charging (non-contact charging) of the battery 45, and is mounted on one of the pair of disk units 42 and 42 as described above. The disk portion 42 on which the power receiving unit 46 is mounted engages with the guide recess 20a of the positioning guide unit 20 on the side where the power transmission unit 104 is provided. An output from the power receiving unit 46 is supplied to the battery 45 through a charging unit 47 including a circuit that controls charging of the battery 45.

  FIG. 6 is a schematic cross-sectional view for explaining the relationship between the power transmission unit 104 and the power reception unit 46 included in the charging system 50 of the present invention. In FIG. 6, the positioning guide portion 20 on one side is provided in a state where the stretcher 30 is connected to the bathing device 10 (a state where the stretcher 30 is positioned at a predetermined position with respect to the bathing device 10). It is the schematic sectional drawing which cut | disconnected the part.

  As shown in FIG. 6, when the stretcher 30 is connected to the bathing apparatus 10 (when the stretcher 30 is disposed at a predetermined position with respect to the bathing apparatus 10), the power transmission incorporated in the positioning guide unit 20. The unit 104 and the power receiving unit 46 mounted on the disk unit 42 are brought close to each other. Then, the power energy can be transmitted from the power transmission unit 104 to the power reception unit 46 by being in this close state. In the present embodiment, since the configuration uses electromagnetic induction-type non-contact charging, it is desirable that the power transmission unit 104 and the power reception unit 46 be configured so as not to be displaced as much as possible when performing appropriate charging. In this respect, in the present embodiment, the power transmission unit 104 and the power reception unit 46 are provided in a portion that constitutes a positioning mechanism for arranging the stretcher 30 at a predetermined position with respect to the bathing apparatus 10. There is a low possibility that a positional shift between the two occurs.

  When the controller 102 confirms the connection between the stretcher 30 and the bathing apparatus 10 based on the signal from the connection detector 101, the controller 102 controls the power to be supplied from the power circuit 103 to the power transmitter 104. The power transmission unit 104 that has received the supply of power transmits power energy to the power reception unit 46 that is in a non-contact state with the power reception unit 104. In the present embodiment, power energy is generated by utilizing a phenomenon in which an electromotive force is generated in a coil (secondary coil) included in the power receiving unit 46 by causing a current to flow in the coil (primary coil) included in the power transmitting unit 104. Is being transmitted.

  The power received by the power receiving unit 46 is supplied to the charging unit 47 that is electrically connected to the power receiving unit 46, and the battery 45 is charged. The charging of the battery 45 is preferably configured to automatically stop when the battery 45 is fully charged. Further, power supply to the actuator 35 may be cut off during charging.

  According to the charging system 50 of the present embodiment, the battery 45 of the stretcher 30 can be charged while the stretcher 30 is laid on the bathing apparatus 10 to bathe a person requiring assistance. That is, the battery 45 can be charged while the person requiring assistance is taking a bath. For this reason, it is possible to omit the work of charging the battery 45 after completion of bathing by the care recipient. That is, according to the charging system 50 of the present embodiment, the burden on the assistant can be reduced.

  Moreover, according to the charging system 50 of this embodiment, the charger for charging the battery 45 is unnecessary, and it is not necessary to secure the storage place. Furthermore, according to the charging system 50 of this embodiment, since the electrical contact is not exposed to charge the battery 45, an electric shock accident or a mechanical failure (these are caused by water splashing on the electrical contact). Risk)) is reduced.

By the way, in the charging system 50 of this embodiment, it is preferable to set it as the structure which reduces the bad influence by electromagnetic waves. For this purpose, for example, as shown in FIG. 7, a substantially U-shaped electromagnetic wave is provided so as to surround the power transmitting unit 104 and the power receiving unit 46 inside the positioning guide unit 20 (may be outside in some cases). It is preferable to arrange the shield member 61 (for example, a metal plate using Al or Cu). Further, for the purpose of further electromagnetic wave shielding effect, as shown in FIG. 7, another electromagnetic wave shielding member 62 is provided on the stretcher 30 side so as to cover a portion that cannot be covered with the electromagnetic wave shielding member 61 provided on the positioning guide portion 20. May be arranged.
<Others>

  The embodiment described above is merely an example of the present invention. The configuration of the embodiment described above may be changed as appropriate without departing from the technical idea of the present invention.

  For example, in the above-described embodiment, the power transmission unit 104 is provided in the positioning guide unit 20, and the power reception unit 46 is provided in the disk unit 42. However, the present invention is not limited to this configuration, and the positions where the power transmission unit 104 and the power reception unit 42 are provided may be different positions. When the power transmitting unit 104 and the power receiving unit 42 are arranged so that the power transmitting unit 104 and the power receiving unit 42 approach a distance where power energy can be transmitted when the stretcher 30 is laid on the bathing device 10, These may be provided elsewhere.

  Moreover, in embodiment shown above, the power transmission part 104 is arrange | positioned only at one side among a pair of positioning guide parts 20 and 20, and a power receiving part is provided only at one side among a pair of disk parts 42 and 42. 46 is arranged. Not only this but the power transmission part 104 is arrange | positioned at both of a pair of positioning guide parts 20 and 20, and it is good also as a structure by which the power receiving part 46 is arrange | positioned at both of a pair of disk parts 42 and 42. For example, when the capacity of the battery 45 is large, the latter configuration is preferable.

  Moreover, in embodiment shown above, although the positioning guide part 20 was set as the structure provided only in one of the two side surfaces substantially parallel to the longitudinal direction of the bathing apparatus 10, you may provide in both side surfaces. In this case, the power transmission unit 104 may also be provided on both side surfaces.

  In the embodiment described above, the electromagnetic induction method is used as the non-contact charging method. However, the present invention is not limited to this configuration. For example, a radio wave method or a magnetic resonance method may be used. .

  In the embodiment shown above, the charging unit 47 is mounted on the stretcher 30. However, the present invention is not limited to this configuration, and the charging unit may be disposed on the bathing apparatus side.

  In the embodiment described above, the connection detection unit 101 is configured to detect connection using a mechanical switch. However, the present invention is not limited to this configuration. For connection detection, electrical detection using the power transmitting unit 104 and the power receiving unit 46 (for example, measuring the mutual magnetic field strength and determining that the magnetic field strength sufficient for power transmission has been exceeded) To obtain a connection detection signal).

DESCRIPTION OF SYMBOLS 10 Bathing apparatus 30 Stretcher 20 Positioning guide part 20a Guide recessed part 42 Disk part (engagement part)
45 Battery 46 Power receiving unit 104 Power transmitting unit T Stretcher unit

Claims (10)

A charging system for charging a stretcher battery used with a bathing device,
A power transmission unit provided in the bathing device for non-contact charging of the battery;
A power receiving unit used in a pair with the power transmitting unit to perform the non-contact charging, and provided in the stretcher;
A charging system comprising: The bathing apparatus has a guide part for positioning the stretcher at a predetermined position,
The stretcher has an engaging portion that engages with the guide portion,
The power transmission unit is provided in the guide unit,
The charging system according to claim 1, wherein the power reception unit is provided in the engagement unit.   The charging system according to claim 2, wherein the predetermined position is a position at which a stretcher is exchanged between the bathing device and the stretcher. A stretcher used with a bathing device,
Rechargeable battery,
A power receiving unit used in a pair with a power transmitting unit of the bathing device to charge the battery in a non-contact manner;
Stretcher characterized by comprising.   The stretcher according to claim 4, further comprising a charging unit that controls charging of the battery.   The stretcher according to claim 4 or 5, wherein the non-contact charging is performed when positioned at a predetermined position with respect to the bathing device.   The stretcher according to claim 6, wherein the predetermined position is a position at which the stretcher is exchanged with the bathing apparatus. A bathing device used with a stretcher,
A bathing apparatus comprising: a power transmission unit that is used in combination with a power reception unit provided in the stretcher for non-contact charging of a battery included in the stretcher.   The bathing apparatus according to claim 8, wherein the non-contact charging is started when the stretcher is positioned at a predetermined position with respect to the bathing apparatus.   The bathing apparatus according to claim 9, wherein the predetermined position is a position where the stretcher is exchanged with the stretcher.

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