JP6554281B2 - Transport car and bathing system - Google Patents

Description

  The present invention relates to a transfer vehicle and a bathing system including the same.

  2. Description of the Related Art Conventionally, the following bathing systems are known as bathing systems for bathing a person who needs assistance (a person who needs assistance) such as a sick person, an elderly person, or a physically handicapped person. In the bathing system, a support person is placed on a stretcher on a stretcher, the stretcher is placed on a bathtub apparatus (including a bathtub), and a stretcher on which a helper is placed is provided from the stretcher to the bathtub apparatus. It moves to the bottom, and either the bath tub or the pedestal is moved up and down to make the person in need of assistance bathe (see, for example, Patent Documents 1 to 3).

  In the conventional bathing system, in order to ensure safety, when the stretcher and the bathtub device are not connected, the stretcher can not move from the stretcher to the bathtub device, or the stretcher moves from the bathtub to the stretcher A configuration incapable of being adopted is employed (see, for example, Patent Documents 1 and 2). In addition, in order to ensure safety, the stretcher is provided with a lock mechanism that prevents the stretcher from falling off (see, for example, Patent Documents 2 and 3).

Patent No. 4522161 gazette Unexamined-Japanese-Patent No. 2006-340955 Japanese Patent Application Laid-Open No. 2004-187872

  By providing the above-mentioned safety mechanism, the safety of the bather (required assistant) can be sufficiently secured. However, for example, when moving the stretcher from the bathtub apparatus to the stretcher, there may be a situation where the stretcher is separated from the bathtub apparatus before the stretcher is locked to the stretcher due to an incorrect operation procedure. Conceivable. If such a situation occurs, the stretcher may fall to the floor, and improvement is required.

  SUMMARY OF THE INVENTION In view of the above, it is an object of the present invention to provide a transport vehicle that can reduce the possibility of a person on the vehicle falling. Another object of the present invention is to provide a bathing system that can improve the safety of bathers by providing such a transport vehicle.

  In order to achieve the above object, the transport vehicle of the present invention is provided with a carriage unit having wheels, a separation unit supported in a detachable manner by the carriage unit and carrying a person, and provided on the carriage unit and connected to an external device A connecting portion, a release operating portion capable of releasing the connection between the external device and the connecting portion, a detecting portion detecting that the separating portion is at a predetermined position of the carriage, and A configuration (first configuration) includes a release operation prohibition unit that prohibits release operation in the release operation unit when the detection unit does not detect the separation unit.

  According to this configuration, since the release operation prohibiting portion is provided, the release operation portion (representative example is a pedal) when the separating portion (representative example is a stretcher portion) is not placed at a predetermined position of the carriage portion. The connection between the carriage and the external device (typical example is a bathtub device) can not be disconnected using For this reason, it is possible to avoid the situation in which the carriage portion is moved despite the separation portion being insufficiently mounted on the carriage portion. That is, according to this configuration, it is possible to reduce the possibility of dropping the separation unit on which a person is placed.

  In the transfer vehicle of the first configuration, it is preferable that the detection unit be configured (second configuration) to mechanically detect that the separation unit is at the predetermined position. According to this configuration, the detection unit can be easily configured at low cost. Further, according to this configuration, it is easy to configure a detection unit that is unlikely to fail even when wet with water at a low cost.

  In the transfer vehicle of the second configuration, it is preferable that the release operation prohibition unit is configured (third configuration) to prohibit the release operation mechanically interlocked with the detection operation of the detection unit. According to this configuration, it is possible to obtain a configuration in which the release operation prohibition unit functions reliably while avoiding the use of expensive components.

  The transfer vehicle according to any one of the first to third configurations does not permit the movement of the separation unit to the external device when the connection portion is not connected to the external device, and the connection portion It is preferable that the configuration further includes a switching unit that allows movement of the separation unit to the external device when connected to the external device (fourth configuration). According to this configuration, it is possible to further improve the safety of the person who is placed on the separation unit. In addition, it is preferable that such a switching unit is configured to mechanically interlock with a detection unit that detects the connection of the connection unit to an external device.

  The transport vehicle according to any one of the first to fourth configurations further includes a lock portion that fixes the separation portion at the predetermined position when the separation portion is at the predetermined position (fifth configuration) Is preferred. According to this configuration, it is possible to further improve the safety of a person placed on the separation unit.

  In addition, in order to achieve the above object, a bathing system according to the present invention comprises the transfer vehicle according to any one of the first to fifth aspects, and a bath apparatus including a bath and connected to the connecting portion Configuration of 6). According to this configuration, it is possible to realize a configuration in which a double or triple safety mechanism for preventing a person on the separation unit from dropping on the floor is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the transfer vehicle which can reduce the possibility that the person who falls will fall can be provided. Further, according to the present invention, it is possible to provide a bathing system capable of improving the safety of a bather.

Schematic which shows the structure of the bathtub apparatus with which the bathing system which concerns on embodiment of this invention is provided. Schematic which shows the structure of the stretcher part contained in the stretcher with which the bathing system which concerns on embodiment of this invention is provided. Schematic which shows the structure of the trolley | bogie part contained in the stretcher with which the bathing system which concerns on embodiment of this invention is provided. The schematic diagram for demonstrating the procedure to bathe a bather using the bathing system which concerns on embodiment of this invention. The figure which shows the state in case the trolley | bogie part is not connected with the bathtub apparatus in the schematic plan view which expanded and showed the stretcher support stand of the stretcher which concerns on embodiment of this invention. A schematic plan view showing a carriage unit according to an embodiment of the present invention with a stretcher support omitted. FIG. 7 is a view on arrow AA of FIG. 6, showing a state in which the carriage portion is not connected to the bathtub device. The schematic plan view which expanded and showed the stretcher support stand of the stretcher which concerns on embodiment of this invention, and a figure which shows the state at the time of a trolley | bogie part being connected with a bathtub apparatus. The figure which shows a state when a trolley | bogie part is connected with the bathtub apparatus by AA arrow line view of FIG. It is the schematic which shows the structure of the connection part with which the stretcher which concerns on embodiment of this invention is equipped, and is a BB arrow line view of FIG. A schematic view showing a state in which the connecting part shown in FIG. 10 is deformed The schematic side view which shows the structure of the stretcher detection part with which the stretcher which concerns on embodiment of this invention is equipped, and which shows the state in case the stretcher part is mounted in the predetermined position of a trolley | bogie part The figure which shows the state in case a stretcher part is mounted in the predetermined position of a trolley | bogie part by the schematic side view which shows the structure of the cancellation | release operation prohibition part with which the stretcher which concerns on embodiment of this invention is equipped. The figure which shows the state in case the stretcher part is not in the predetermined position of a trolley | bogie part by the schematic side view which shows the structure of the stretcher detection part with which the stretcher which concerns on embodiment of this invention is equipped. The schematic side view which shows the structure of the cancellation operation prohibition part with which the stretcher which concerns on embodiment of this invention is equipped, and which shows the state in case a stretcher part is not mounted in the predetermined position of a trolley | bogie part

Hereinafter, a transport vehicle and a bathing system according to embodiments of the present invention will be described in detail with reference to the drawings.
<Overview of bathing system>

  The bathing system of the present embodiment includes a bathtub apparatus and a stretcher. In addition, the stretcher with which the bathing system of this embodiment is provided is an example of the transport vehicle of this invention. Moreover, the bathtub apparatus with which the bathing system of this embodiment is provided is an example of the external apparatus of this invention.

  Drawing 1 is a schematic diagram showing composition of bathtub apparatus 1 with which a bathing system concerning an embodiment of the present invention is provided. FIG. 1A is a schematic top view showing the configuration of the bathtub device 1. FIG. 1B is a schematic side view showing the configuration of the bathtub device 1. FIG. 1C is a schematic front view showing the configuration of the bathtub device 1.

  As shown in FIG. 1, the bathtub device 1 includes a gantry 10 placed on the floor, and a bathtub 11 (see a two-dot chain line in FIG. 1B) provided to be movable up and down with respect to the gantry 10. ing. The gantry 10 is provided with a support column 12 extending in the vertical direction (vertical direction). The columns 12 pass through the bottom wall of the bath 11 in a fluid-tight manner. The bathtub 11 moves up and down along the column 12. The bathtub 11 is lifted and lowered by a lifting means (not shown) provided on the gantry 10. In addition, the structure of the raising / lowering means is not specifically limited. For example, the lifting means can be configured using an X link mechanism and a lifting cylinder (for example, a hydraulic cylinder).

  A substantially rectangular stretcher base 13 is fixed to the upper portion of the column 12. Rails 14 are provided at both ends of the stretcher base 13 in the longitudinal direction so as to movably support a stretcher described later in detail. The rails 14 extend in the lateral direction of the bathtub 11. On the upper surface of the carrier 13, a lock 15 for fixing the carrier mounted on the carrier 13 is provided. The lock part 15 is the same structure as the lock part mentioned later provided in the stretcher which comprises a bathing system.

  Two catchers 16 having a function of connecting to a connecting portion of a stretcher, which will be described in detail later, are provided on two side surfaces of the bathtub 11 in the longitudinal direction. The catcher 16 is fixed to the gantry 10 and does not move even when the bathtub 11 moves up and down. The catcher 16 also has a function of positioning a stretcher that is laid on the bathtub 11.

  In the present embodiment, the catchers 16 are provided on both side surfaces so that the stretcher can be placed on each of the two side surfaces in the longitudinal direction of the bathtub 11, but this is only an example. If the stretcher only needs to be placed on one of the two side surfaces in the longitudinal direction of the bathtub 11, the catcher 16 may be provided only on one side surface in the longitudinal direction.

  In addition, the bathing apparatus 1 includes an operation unit 17 for operating the apparatus, a faucet 18 for storing hot water in the bath 11, a shower device 19 and the like.

  FIG. 2: is schematic which shows the structure of the stretcher part 20 contained in the stretcher 2 with which the bathing system which concerns on embodiment of this invention is equipped. FIG. 2A is a schematic top view showing the configuration of the stretcher unit 20. As shown in FIG. FIG. 2 (b) is a schematic side view showing the configuration of the stretcher unit 20. The stretcher unit 20 is an example of the separation unit of the present invention.

  As shown in FIG. 2, the stretcher unit 20 includes a stretcher main body 21 on which a bather is placed, and side fences 22 provided on both sides in the longitudinal direction of the stretcher main body 21. The stretcher body 21 is composed of a plurality of frames, and both end sides (head side and leg side) in the longitudinal direction can be bent. This is only an example. On the stretcher body 21, for example, a mat 23, a pillow 24, a safety belt 25, and the like are provided as appropriate. The side fence 22 is provided to prevent the bather on the stretcher body 21 from dropping off. The side fences 22 are switched between a standing state (the state shown in FIG. 2) and a falling state in which the side fence 22 is turned outward by 90 ° or more from the standing state.

  On the lower surface of the stretcher main body 21, a pair of roller portions 26 are provided that are arranged at regular intervals in the longitudinal direction. Further, a stretcher lock shaft 27 is provided at an appropriate position on the lower surface of the stretcher body 21. The stretcher lock shaft 27 extends in the longitudinal direction of the stretcher main body 21 and can be moved up and down by operating the lock operation lever 28. Further, at an appropriate position on the lower surface of the stretcher main body 21, a stretcher dropout prevention shaft 29 projecting downward is provided.

  FIG. 3: is schematic which shows the structure of the trolley | bogie part 30 contained in the stretcher 2 with which the bathing system which concerns on embodiment of this invention is equipped. FIG. 3A is a schematic top view showing the configuration of the carriage 30. As shown in FIG. FIG. 3B is a schematic side view showing the configuration of the carriage 30. As shown in FIG. FIG. 3C is a front view showing the configuration of the carriage 30. As shown in FIG.

  The carriage 30 includes a lower frame 31 and four columns 32 erected on the lower frame 31. A frame member extends from one upper side of the four columns 32 to one side or the other side in the longitudinal direction, and the upper frame 33 is configured by the extended frame members. The carriage unit 30 is also provided with a stretcher support 34 that is supported by the four support columns 32. The above-described stretcher unit 20 is supported on the stretcher support base 34 in a separable manner.

  At both ends in the longitudinal direction of the lower frame 31, two casters 35 (an example of a wheel) arranged at intervals in the lateral direction are provided. The cart unit 30 can travel on the floor surface by four casters 35 provided in total. The cart unit 30 is provided with a known mechanism that locks the rotation of the caster 35. Handles 36 for operating the traveling direction of the carriage unit 30 are attached to both ends of the upper frame 33 in the longitudinal direction.

  A pair of rails 37 disposed at a constant interval in the longitudinal direction of the carriage 30 is provided on the stretcher support base 34 provided in a substantially H shape. The pair of rails 37 extend in the short direction of the carriage unit 30. The pair of roller portions 26 provided in the above-described stretcher portion 20 is provided to be engageable with the pair of rails 37. As the pair of roller portions 26 travel on the pair of rails 37, the stretcher portion 20 is separated from the carriage 30 or placed on the carriage 30 from the outside.

  The lower frame 31 is provided with a guide disk 38 which guides the position of the stretcher 2 relative to the bathtub apparatus 1 to an appropriate position in cooperation with the engagement recess 16a (see FIG. 1 (b)) provided in the catcher 16. It has been. Two guide disks 38 are provided on each side surface in the longitudinal direction of the carriage unit 30 in correspondence with the configuration of the catcher 16 provided in the bathtub device 1.

  Further, the lower frame 31 is provided with a pair of connecting portions 39 for connecting the carriage portion 30 disposed at an appropriate position with respect to the bathtub apparatus 1 by the guide disc 38 to the bathtub apparatus 1. The pair of connecting portions 39 is in a state of being separated by a predetermined distance in the longitudinal direction of the carriage 30 corresponding to the distance between the pair of catchers 16 provided on each side surface of the bathtub device 1 in the longitudinal direction. Further, the lower frame 31 is provided with a pedal 40 for performing an operation for releasing the connection of the connecting portion 39 to the bathtub device 1. By stepping on the pedal 40 in a state where the bathtub device 1 and the cart unit 30 are connected, the connection between the two can be released. The pedal 40 is an example of a release operation unit of the present invention.

  In addition, the cart unit 30 is provided with a plurality of safety mechanisms for preventing the stretcher unit 20 from falling off. Details of these safety mechanisms will be described later.

  FIG. 4: is a schematic diagram for demonstrating the procedure which makes a bather bathe using the bathing system which concerns on embodiment of this invention. The bathing procedure proceeds in the order of (a), (b) and (c) in FIG. In FIG. 4, the stretcher unit 20 is indicated by a broken line for convenience in order to facilitate understanding of the relationship between the stretcher unit 20 and the other portions.

  First, as shown in FIG. 4A, the stretcher 2 including the stretcher 20 on which a bather (not shown) is placed is brought close to one side surface of the bathtub device 1 in the longitudinal direction. In addition, in the bathing system according to the present embodiment, the stretcher 2 may be brought close to any side in order to connect the bogies 30 to both side surfaces in the longitudinal direction of the bath apparatus 1. Here, a case where the carriage unit 30 is coupled to the lower side surface in FIG. 4 will be described as an example.

  From the state of FIG. 4 (a), the engagement recess 16 a of the catcher 16 provided in the bathtub device 1 and the guide disk 38 provided in the stretcher 2 are used to strike the bathtub device 1 at an appropriate position. Arrange the 2 And the connection part 39 of the trolley | bogie part 30 and the to-be-connected part (not shown) contained in the catcher 16 are engaged, and the trolley | bogie part 30 and the bathtub apparatus 1 are connected. Thereby, the state of FIG. 4 (b) is obtained. In addition, in this embodiment, the connection part 39 is automatically connected with the bathtub apparatus 1 by pushing the stretcher 16 arrange | positioned in the right direction toward the transversal direction of the bathtub apparatus 1. FIG. .

  In the state of FIG. 4B, the pair of rails 14 on the bathtub device 1 side and the pair of rails 37 on the stretcher 2 side are aligned in position (height position and longitudinal position). For this purpose, after the state shown in FIG. 4 (b) is obtained, the stretcher 20 is run along the rails 14, 37, as shown in FIG. 4 (c). It can move from 34 (stretcher 2) to the stretcher base 13 (tub apparatus 1).

When the stretcher unit 20 is moved to the bathtub apparatus 1 as shown in FIG. 4C, the operation unit 17 is operated to raise the bathtub 11. Thereby, the bather who has been on the stretcher unit 20 can be immersed in the hot water stored in the bath 11. In the case of bathing (after bathing is finished and exits from the bathtub 11), the reverse procedure is performed. In the present embodiment, by moving the bath 11 up and down, the bather on the stretcher unit 20 can be immersed in the hot water, but this is an example. By raising and lowering the carrier 13, the bather on the carrier 20 may be allowed to soak in the hot water.
<About the safety mechanism>

  Hereinafter, the safety mechanism provided in the stretcher of this embodiment will be described. First, the first safety mechanism will be described.

  As shown in FIG. 3, a lock unit 50 is provided on the stretcher support base 34 of the carriage unit 30. The lock unit 50 has a function of preventing the stretcher unit 20 disposed at a predetermined position from moving relative to the carriage unit 30. In the present embodiment, the predetermined position is a position where the central portion in the lateral direction of the carriage 30 and the central portion in the lateral direction of the stretcher 20 substantially coincide with each other. The lock portion 50 includes a pair of lock members 51 spaced apart in the longitudinal direction. Each lock member 51 is provided with a notch (not shown) that engages with the stretcher lock shaft 27 provided on the lower surface of the stretcher body 21.

  When the stretcher unit 20 that has moved from the outside to the cart unit 30 reaches a predetermined position of the cart unit 30, the stretcher lock shaft 27 is automatically fitted into the notches of the pair of lock members 51. As a result, the stretcher unit 20 can not move relative to the carriage unit 30 unless an assistant or the like performs a lock release operation by the lock operation lever 28. That is, even if the carriage unit 30 is moved in a state where the lock by the lock unit 50 is obtained, the stretcher base 20 does not fall off the carriage unit 30.

  As described above, the carriage support 13 of the bath apparatus 1 is also provided with the lock portion 15 similar to the lock portion 50 provided on the carriage 30. For this reason, the stretcher 20 that has moved from the stretcher 2 to the stretcher 13 is automatically set to a predetermined position of the stretcher 13 (in this embodiment, the center portion in the short direction of the two substantially coincides). It is locked and can not move with respect to the pedestal 13 unless an assistant or the like performs an unlocking operation by the lock operation lever 28.

  Next, the second safety mechanism will be described with reference to FIGS.

  FIG. 5 is an enlarged schematic plan view showing the stretcher support 34 of the stretcher 2 according to the embodiment of the present invention, and is a view showing a state where the cart unit 30 is not connected to the bathtub device 1. . FIG. 6 is a schematic plan view showing the carriage 30 according to the embodiment of the present invention, with the stretcher support 34 omitted. FIG. 7 is a view taken along the line AA of FIG. 6 and shows a state where the carriage unit 30 is not connected to the bathtub device 1. FIG. 8 is an enlarged schematic plan view showing the stretcher support 34 of the stretcher 2 according to the embodiment of the present invention, and is a view showing a state where the carriage unit 30 is connected to the bathtub device 1. FIG. 9 is a view taken along the line AA in FIG. 6 and shows a state where the cart unit 30 is connected to the bathtub device 1. In FIG. 7 and FIG. 9, parts that are considered unnecessary for the description are appropriately omitted.

  As shown in FIG. 5 and FIG. 8, the stretcher support 34 is provided with a pair of movable convex portions 61 that are movable in a predetermined range in the longitudinal direction of the carriage 30 and project from the upper surface of the stretcher support 34. It has been. The moving range of the pair of movable convex portions 61 is restricted by the peripheral edge of the substantially rectangular cutout window 34 a provided on the upper surface of the stretcher support base 34. The pair of movable convex portions 61 are respectively pressed in a predetermined direction (rightward in FIGS. 5 and 8) by the biasing member 62 (for example, a compression coil spring or the like). The pair of movable convex portions 61 is an example of the switching portion of the present invention.

  One end of a separate wire 63 is connected to each of the pair of movable protrusions 61. As shown in FIGS. 7 and 9, the other end of each wire 63 is fixed to a connection detection rod 64 (two are provided) that are movably held by the lower frame 31 of the carriage unit 30. . More specifically, the connection detection rod 64 is provided under the frame portion that supports the guide disc 38 of the lower frame 31. The connection detection rod 64 is provided such that, when the carriage 30 and the bath apparatus 1 are connected, the outwardly facing tip end abuts against a part of the bath apparatus 1 and is pressed.

  When the connection detection bar 64 is pressed by a part of the bathtub apparatus 1, the connection detection bar 64 moves in the short direction of the carriage unit 30 as indicated by an arrow in FIG. 9. Since the wire 63 is pulled by this movement, the movable convex portion 61 moves against the biasing force of the biasing member 62 as shown by the arrow in FIG. When the pressing of the connection detection rod 64 is released, the movable convex portion 61 and the connection detection rod 64 return to their original positions by the biasing force of the biasing member 62.

  By the way, as described above, the stretcher detachment prevention shaft 29 is provided on the lower surface of the stretcher unit 20 (also indicated by a broken line in FIGS. 5 and 8). When the stretcher unit 20 is disposed at a predetermined position of the cart unit 30 (a position where the lock unit 50 is locked) and the cart unit 30 is not coupled to the bathtub device 1 (the connection detection rod 64 is connected to the bathtub device 1). When not in contact), the stretcher drop prevention shaft 29 and the pair of movable convex portions 61 and the pair of movable convex portions 61 are placed in the same position in the longitudinal direction (longitudinal direction of the carriage unit 30). The movable convex portion 61 is configured. In addition, when the stretcher portion 20 is disposed at a predetermined position of the carriage unit 30 and the carriage unit 30 is not connected to the bathtub device 1, the stretcher drop prevention shaft 29 is interposed between the pair of movable protrusions 61. It is comprised so that it may be pinched.

  That is, the stretcher unit 20 disposed at a predetermined position of the carriage unit 30 can be used even if the lock unit 50 is unlocked by the lock operation lever 28 when the carriage unit 30 is not connected to the bathtub device 1. The falling-off preventing shaft 29 and the pair of movable convex portions 61 collide with each other (refer to FIG. 5), so that they do not fall from the carriage 30.

  On the other hand, when the cart unit 30 is connected to the bathtub device 1, the movable convex portion 61 existing on the side close to the bathtub device 1 of the pair of movable convex portions 61 moves to a position where it does not collide with the stretcher drop prevention shaft 29. (See FIG. 8). For this reason, when the lock part 50 is unlocked by the lock operation lever 28, the stretcher part 20 can be moved from the stretcher 2 to the bathtub apparatus 1. In this case, even if the stretcher unit 20 tries to move to the side where the bathtub apparatus 1 does not exist, the stretcher detachment prevention shaft 29 collides with the movable convex section 61 present on the side away from the bathtub apparatus 1. For this reason, the stretcher 20 does not fall to the side where the bathtub device 1 is not provided.

  In addition, if the carriage unit 30 and the bathtub apparatus 1 are connected to each other, the stretcher drop-off prevention shaft 29 and the movable convex part 61 do not collide with each other, so movement of the stretcher unit 20 from the bathtub apparatus 1 to the stretcher 2 is also possible. It is.

  Further, in the present embodiment, since the stretcher 2 can be connected to both side surfaces in the longitudinal direction of the bathtub device 1, the movable convex portion 61, the biasing member 62, the wire 63, and the connection detection rod 64 are respectively provided. Two components were provided. However, this is only an example, and when the stretcher 2 is connected only to one surface in the longitudinal direction of the bathtub apparatus 1, the movable convex portion 61, the biasing member 62, the wire 63, and the connection detection rod 64 , One each.

  Next, the third safety mechanism will be described.

  In describing the third safety mechanism, first, the configuration of the connecting portion 39 provided in the stretcher 2 will be described. FIG. 10 is a schematic view showing the configuration of the connecting portion 39 provided in the stretcher 2 according to the embodiment of the present invention, and is a view as viewed from the arrow B-B in FIG. FIG. 11 is a schematic view showing a state where the connecting portion 39 shown in FIG. 10 is deformed.

  The connection portion 39 includes a first connection piece 391 and a second connection piece 392 having the same shape (substantially S-shape). One end portions of the first connection piece 391 and the second connection piece 392 are rotatably connected to each other and arranged in line symmetry. The first connecting piece 391 is rotatably supported by the lower frame 31 by the first shaft portion 393. The second connecting piece 392 is rotatably supported by the lower frame 31 by the second shaft portion 394. The first connecting piece 391 and the second connecting piece 392 are respectively connected to an urging member 395 (for example, a tension spring), and when an external force is not applied, the urging member 395 is attached. Due to the force, the first connection piece 391 and the second connection piece 392 extend generally horizontally as a whole (the state shown in FIG. 10).

  Each of the first connection piece 391 and the second connection piece 392 has a tapered portion 396 at the other end, and a groove 397 at a position adjacent to the tapered portion 396. When the bogie 30 is laterally attached to the bathtub apparatus 1 and pushed toward the bathtub apparatus 1, the tapered portion 396 of the first connection piece 391 or the second connection piece 392 is a connected part (not connected) of the bathtub apparatus 1. Abut). Then, when the carriage unit 30 is further pushed toward the bathtub device 1, the connecting part 39 is pushed by the connected part and is deformed into a substantially C shape as the others as shown in FIG. Plate-like) is fitted into the groove 397. When the to-be-connected portion is fitted into the groove 397, the connecting portion 39 as a whole returns to the substantially horizontally extending state (the state of FIG. 10) by the biasing force of the biasing member 395. Thereby, connection with the trolley | bogie part 30 and the bathtub apparatus 1 is completed.

  The pedals 40 are attached to the first connection piece 391 and the second connection piece 392, respectively. By stepping on the pedal 40, the connection between the carriage 30 and the bathtub apparatus 1 can be disconnected, and the stretcher 2 can be separated from the bathtub apparatus 1. However, the pedal 40 can not always be depressed, and can be depressed under certain conditions. This will become clear from the following.

  With the configuration of the connecting portion 39 as described above in mind, the third safety mechanism will be described mainly with reference to FIGS. 12 to 15. FIG. 12 is a schematic side view illustrating the configuration of the stretcher detection unit 70 included in the stretcher 2 according to the embodiment of the present invention, and is a diagram illustrating a state when the stretcher unit 20 is placed at a predetermined position of the carriage unit 30. is there. FIG. 13 is a schematic side view showing the configuration of the release operation prohibiting unit 80 provided in the stretcher 2 according to the embodiment of the present invention, and shows the state when the stretcher unit 20 is placed at a predetermined position of the carriage unit 30. It is. FIG. 14 is a schematic side view illustrating the configuration of the stretcher detection unit 70 included in the stretcher 2 according to the embodiment of the present invention, and is a diagram illustrating a state where the stretcher unit 20 is not placed at a predetermined position of the carriage unit 30. is there. FIG. 15 is a schematic side view showing the configuration of the release operation prohibiting unit 80 included in the stretcher 2 according to the embodiment of the present invention, and shows a state when the stretcher unit 20 is not placed at a predetermined position of the carriage unit 30. It is.

  As shown in FIGS. 12 and 14 (see also FIG. 3 and FIG. 5 etc.), the stretcher support base 34 is provided with a stretcher detection unit 70. In FIG. 12, a part of the stretcher unit 20 placed at a predetermined position of the carriage unit 30 (a position where locking by the lock unit 50 is performed) is shown. The stretcher detection unit 70 is an example of the detection unit of the present invention.

  The stretcher detection unit 70 is disposed on the stretcher support base 34 and includes a frame 72 provided with a pivot shaft 71. On the frame body 72, a box-shaped rotating body 73 that is rotatably connected to the frame body 72 via a rotating shaft 71 is provided. On the upper surface of the rotating body 73, a roller 74 that engages with the presser 21a protruding from the lower surface of the stretcher body 21 is provided. Further, a substantially V-shaped arm 75 is rotatably supported inside the frame 72, and one end of the arm 75 is fixed to the rotating body 73. One end of a wire 76 is connected to the other end of the arm 75.

  As shown in FIG. 6, the lower frame 31 is provided with a release operation prohibition unit 80. As shown in FIGS. 13 and 15, the release operation prohibiting unit 80 includes a movable body 81 that is supported by the lower frame 31 so as to be movable. The movable body 81 includes a substantially cylindrical first shaft portion 811 and a substantially cylindrical second shaft portion 812 having a diameter smaller than that of the first shaft portion 811. A groove 82 is formed on the lower side of the first shaft portion 811 (the side facing the second connection piece 392 constituting the connection portion 39).

  A biasing member 83 (for example, a compression coil spring) is loosely fitted to the second shaft portion 812 of the movable body 81. The urging member 83 is supported in a state where one end is in contact with the first shaft portion 82 and the other end is in contact with a part of the lower frame 31, and the movable body 81 is supported from the second shaft portion 812 to the second position. 1 is biased in the direction toward the shaft 811 (the left direction in FIGS. 13 and 15). A wire 76 is connected to the tip of the second shaft portion 812 of the movable body 81. That is, the movable body 81 is connected to the arm 75 constituting the stretcher detection unit 70 via the wire 76.

  When the stretcher unit 20 is placed at a predetermined position of the carriage unit 30 (a position where locking by the lock unit 50 is performed), the roller 74 of the stretcher detection unit 70 is moved by the pusher 21a of the stretcher unit 20 as shown in FIG. When pressed, the rotating body 73 is lowered and the arm 75 pulls the wire 76. Because the wire 76 is pulled, the movable body 81 of the release operation prohibition unit 80 is pulled in the direction (the right direction in FIGS. 13 and 15) against the biasing force of the biasing member 83. As a result, the groove part 82 of the movable body 81 comes directly above the second connecting piece 392 (see FIG. 13).

  Since the groove 82 is right above the second connection piece 392, the connection 39 is not hampered by the movable body 81, and from the horizontal state (the state of FIG. 10) to the V-shaped state (the state of FIG. 11). Can be transformed into That is, in a state where the stretcher unit 20 is placed at a predetermined position of the carriage unit 30, the carriage unit 30 can be connected to or separated from the bathtub apparatus 1. In the case of separation, an assistant or the like steps on the pedal 40.

  On the other hand, when the stretcher unit 20 is not placed at a predetermined position of the carriage unit 30 (for example, when the stretcher unit 20 is placed on the stretcher platform 13 of the bathtub apparatus 1), the roller 74 is pressed by the pusher 21a. As a result, the wire 76 is not pulled. For this reason, as shown in FIG. 15, the groove 82 of the movable body 81 is shifted from directly above the second connection piece 392 by the biasing force of the biasing member 83. Further, the pivoting member 73 connected to the arm 75 is pushed up by the biasing force of the biasing member 83, and as shown in FIG. 14, the upper surface thereof becomes substantially horizontal.

  When the groove 82 deviates from directly above the second connection piece 392 as shown in FIG. 15, the connection portion 39 is disturbed by the movable body 81, and from the horizontal state (state of FIG. 10), the H state (FIG. 11). Can not be transformed to That is, it becomes impossible to step on the pedal 40. For example, in a state where the carriage 30 is connected to the bathtub apparatus 1 and the stretcher unit 20 is moved to the bathtub apparatus 1 side, the carriage 30 can not be separated from the bathtub apparatus 1 because the pedal 40 can not be stepped on. For this reason, when moving the stretcher unit 20 from the bathtub apparatus 1 to the carriage unit 30, the trolley unit 30 is incorrectly attached to the bathtub unit 1 although the stretcher unit 20 is not locked to the carriage unit 30. Prevent the occurrence of situations such as separation from

  When the stretcher 20 is returned to the predetermined position of the carriage 30, the groove 82 is directly above the second connection piece 392 (the condition of FIG. 13), so that the carriage 40 is stepped on and the carriage It becomes possible to isolate | separate the part 30 from the bathtub apparatus 1. FIG.

  As understood from the above, in the bathing system of the present embodiment, since the double / triple prevention measures for preventing the stretcher portion 20 from falling off are provided, the bather can bathe safely. In addition, it is preferable to provide the bathtub device 1 side with a function such that the stretcher unit 20 can not be moved, for example, when the carriage 30 is not connected to the bathtub device 1.

In addition, when the bather is immersed in the hot water of the bathtub 11 and inevitably wants to separate the cart unit 30 from the bathtub device 1 (for example, for cleaning purposes), the roller 74 portion of the stretcher detection unit 70 is pushed by hand or the like. However, the carriage unit 30 can be separated by depressing the pedal 40.
<Others>

  The embodiment described above is merely an example of the present invention. The configurations of the embodiments described above may be modified as appropriate without departing from the technical concept of the present invention.

  For example, the configurations of the stretcher detection unit 70 and the release operation prohibition unit 80 described above are merely examples, and it is possible to change the parts configuring the respective units 70 and 80 within the range where similar operations can be obtained. Similarly, the shape and the like of the members constituting the first safety mechanism and the second safety mechanism described above may be changed as appropriate.

  Moreover, in embodiment shown above, although the wire 76 was utilized as a mechanism which makes the stretcher detection part 70 and the cancellation | release operation prohibition part 80 interlock | cooperate, this is only an example. As a mechanism for interlocking the stretcher detection unit 70 and the release operation prohibition unit 80, a configuration using a rod or a working fluid (glycerin, air or the like) may of course be adopted.

  Further, in the embodiment described above, it is configured to mechanically detect that the stretcher unit 20 is placed on the predetermined position of the carriage unit 30, but in some cases, detection is performed using light, magnetism, etc. It does not matter as a configuration. Further, in the embodiment described above, the release operation prohibition unit 80 operates in mechanical interlocking with the detection operation of the stretcher detection unit 70, but this is only an example. That is, based on the detection result of the stretcher detection unit 70, the release operation prohibition unit 80 may be operated electrically (using an electrical signal).

  Moreover, although the case where this invention is applied to a stretcher was shown above, this is also an example only. The present invention is widely applicable to transfer vehicles other than stretchers (for example, wheelchairs).

1 Bathtub device 2 Stretcher (Transport vehicle)
11 bathtub 20 stretcher (separation unit)
30 trucks 35 casters (wheels)
39 Connecting part 40 Pedal (release operation part)
50 Lock part 61 Movable convex part (switching part)
70 Stretcher detector (detector)
80 Release operation prohibited part

Claims (4)

A carriage unit having wheels;
A separation unit which is separably supported by the carriage and carries a person;
A connecting portion provided on the carriage and connected to an external device;
A release operation unit that enables an operation of releasing the connection between the external device and the connection unit;
A detection unit that is provided in the cart unit and detects that the separation unit is at a predetermined position of the cart unit;
A release operation prohibition unit that prohibits a release operation in the release operation unit when the detection unit does not detect the separation unit;
Equipped with a,
The detection unit includes an arm that is rotated by being pressed by the separation unit, and mechanically detects that the separation unit is at the predetermined position.
The release operation prohibition unit includes a movable body connected to the arm via a wire,
The transfer operation prohibiting unit prohibits the release operation according to the position of the movable body interlocked with the movement of the arm . When the connecting part is not connected to the external device, movement of the separating part to the external device is not permitted, and when the connecting part is connected to the external device, the external part of the separating part The transfer vehicle according to claim 1 , further comprising a switching unit that allows movement to the apparatus. When said separation unit is in the predetermined position, the transport vehicle according to claim 1 or 2, characterized in that the locking unit further comprises securing said separating unit to the predetermined position. The transfer vehicle according to any one of claims 1 to 3 ,
A bathtub apparatus including a bathtub and connected to the connecting portion;
A bathing system characterized by comprising:

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