WO2019111356A1 - 介助装置 - Google Patents
介助装置 Download PDFInfo
- Publication number
- WO2019111356A1 WO2019111356A1 PCT/JP2017/043843 JP2017043843W WO2019111356A1 WO 2019111356 A1 WO2019111356 A1 WO 2019111356A1 JP 2017043843 W JP2017043843 W JP 2017043843W WO 2019111356 A1 WO2019111356 A1 WO 2019111356A1
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- WO
- WIPO (PCT)
- Prior art keywords
- arm
- movable portion
- support
- person
- assistance device
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1013—Lifting of patients by
- A61G7/1017—Pivoting arms, e.g. crane type mechanisms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/02—Stretchers with wheels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1005—Wheelchairs having brakes
- A61G5/1037—Wheelchairs having brakes manipulated by assisting person
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/12—Rests specially adapted therefor, e.g. for the head or the feet
- A61G5/125—Rests specially adapted therefor, e.g. for the head or the feet for arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/14—Standing-up or sitting-down aids
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/104—Devices carried or supported by
- A61G7/1046—Mobile bases, e.g. having wheels
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1073—Parts, details or accessories
- A61G7/1082—Rests specially adapted for
- A61G7/1086—Upper body
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1073—Parts, details or accessories
- A61G7/1082—Rests specially adapted for
- A61G7/1092—Rests specially adapted for the arms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/10—Devices for lifting patients or disabled persons, e.g. special adaptations of hoists thereto
- A61G7/1073—Parts, details or accessories
- A61G7/1082—Rests specially adapted for
- A61G7/1094—Hand or wrist
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/30—Specific positions of the patient
- A61G2200/34—Specific positions of the patient sitting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/30—Specific positions of the patient
- A61G2200/36—Specific positions of the patient standing
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/50—Information related to the kind of patient or his position the patient is supported by a specific part of the body
- A61G2200/52—Underarm
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/50—Information related to the kind of patient or his position the patient is supported by a specific part of the body
- A61G2200/54—Shoulder
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G2200/00—Information related to the kind of patient or his position
- A61G2200/50—Information related to the kind of patient or his position the patient is supported by a specific part of the body
- A61G2200/60—Elbow
Definitions
- the present specification relates to an assistance device that assists a transfer operation of a person being assisted.
- the assistance device moves a support portion that supports a part of the body of a person being assisted by driving from an actuator.
- the introduction of the assistance device alleviates the physical burden on the assistant and the assistant, and also alleviates the shortage of care workers.
- the assistance device there is a device that assists the transfer operation from the sitting position of the person being assisted.
- Patent Literatures 1 and 2 disclose technical examples relating to such an assistance device.
- the human body transfer apparatus of Patent Document 1 includes a traveling unit equipped with wheels, a supporting unit positioned above the traveling unit to support a person being assisted, and a driving unit driving the human body supporting unit in the height direction. Equipped with Further, by the drive from the drive unit corresponding to the actuator, the arc-like swinging operation of the support unit is performed. According to this, it is supposed that transfer of a person being assisted can be carried out easily and quickly while suppressing that the person in needing hurts the lower back.
- the assistance robot disclosed in Patent Document 2 includes an elevating unit linearly moving in the vertical direction with respect to the base, an arm swingably provided to the elevating unit, and a supporting unit provided at the tip of the arm. Prepare.
- the elevator and the arm are driven by separate actuators to perform a two-step operation. According to this, the elevating part and the arm can be operated in cooperation, and it is said that giving a sense of discomfort to the person being assisted is suppressed.
- the present specification is an assistance apparatus for assisting a transfer operation of a supportee, the base, an arm swingably provided in the back and forth direction on the base, and a part of a body of the supportee.
- a support portion supported on the arm so as to be able to swing in the front-rear direction
- a main body portion provided on the base so as to be able to tilt in the front-rear direction
- an actuator having a movable portion that extends and contracts from the main body portion
- the first movement of the movable portion extending from the shortening position to a predetermined halfway position is transmitted to the forward swing of the support portion, and the movable portion extends from the middle position to the extended position.
- An assist device is disclosed that includes a link mechanism that transmits forward swing and an arm restricting mechanism that biases the upper position of the arm toward the movable portion.
- the present specification is an assistance device for assisting a transfer operation of a supportee, which supports a base and a part of the body of the supportee, and is provided swingably in the front and rear direction in the arm.
- An actuator having a supported portion, a main body portion tiltably provided on the base in the front-rear direction, and a movable portion which extends and retracts from the main body portion; and the movable portion extends from a shortening position to a predetermined halfway position
- a link mechanism that transmits one movement to the forward swing of the support portion, and transmits a second movement in which the movable portion extends from the intermediate position to the extended position to the forward swing of the arm, and the other than the actuator
- an arm restricting mechanism for restricting the arm from swinging forward by an external force of
- the unexpected motion of the arm is restricted by providing the arm restriction mechanism even if the link mechanism has a degree of freedom. Therefore, the unexpected operation of the arm can be regulated to ensure the comfort of use of the person being assisted.
- FIG. 1 is a perspective view of the assistance device 1 of the embodiment as viewed obliquely from the rear.
- FIG. 2 is a side sectional view showing an initial state in which the assistance device 1 assists the transfer operation of the person being assisted M.
- FIG. 3 is a side cross-sectional view showing a state in the middle when the assistance device 1 assists the transfer operation of the person being assisted M.
- FIG. 4 is a side cross-sectional view showing the final state when the assistance device 1 assists the transfer operation of the person being assisted M.
- FIG. 3 is a side cross-sectional view showing a state in the middle when the assistance device 1 assists the transfer operation of the person being assisted M.
- FIG. 4 is a side cross-sectional view showing the final state when the assistance device 1 assists the transfer operation of the person being assisted M.
- the assistance device 1 assists transfer between two different places, such as transfer between the bed of the person being assisted M and the wheelchair, transfer between the wheelchair and the toilet seat, and the like.
- the assistance device 1 supports the body of the person to be assisted M, and assists the transfer operation from the sitting posture to the transfer posture, and the sitting motion from the transfer posture to the sitting posture.
- the transfer posture is a posture in which the buttocks float from the seat surface, and includes a standing posture and a mid-latitude posture. That is, the transfer posture includes the state in which the upper body is upright and the state in which the upper body is bent.
- the assistance device 1 can transfer the person being assisted M in the transfer posture.
- the assistance device 1 includes a base 2, an arm 3, a support 4, an actuator 5, a link mechanism 6, an arm regulation mechanism 7, and a control unit (not shown).
- the base 2 is formed of a foot mounting table 21, a rear wheel 23, a base rod 24, a lower leg support 25, a mounting plate 26, a front wheel 28 and the like.
- the foot mounting table 21 is disposed substantially horizontally close to the floor surface F.
- An actuator bearing 22 is provided so as to protrude upward on the front side of the upper surface of the foot mounting table 21.
- the pair of left and right rear wheels 23 are provided on the left and right of the rear side of the footrest 21.
- the pair of left and right base rods 24 are provided forward from the left and right of the front of the footrest 21 respectively.
- the base rod 24 bends slightly backward after bending upward from the front and extends.
- the lower thigh rests 25 are provided on the upper portions of the two base rods 24 in a backward direction.
- the lower thigh rest portion 25 is positioned above the front of the foot placement table 21.
- the lower thigh rest portion 25 is formed of a cushion material, and the lower thigh area of the person being assisted M can contact.
- the pair of left and right mounting plates 26 is fixed at a position slightly above the bending portion bent upward from the front of the base rod 24 and at a position on the inside facing each other.
- the mounting plate 26 extends forward from the base rod 24.
- Arm support seats 27 are provided on top of the pair of left and right mounting plates 26, respectively.
- a pair of left and right front wheels 28 is provided at the lower front of the pair of left and right mounting plates 26.
- the steering function of the front wheel 28 and the rear wheel 23 enables the assistance device 1 to perform not only linear movement and turning movement, but also lateral movement and corner turning.
- the front wheel 28 has a lock function that restricts movement.
- the arm 3 is formed of a rod-like member 31, a front cover member 36, an upper cover member 38, and various structural members of a code abbreviation.
- the rod-like member 31 is a substantially U-shaped rod-like member whose lower side is open.
- the lower ends 32 on both sides of the rod 31 are pivotally supported by the arm support seats 27 of the mounting plate 26.
- the arm 3 can swing in the front-rear direction with respect to the base 2.
- a stopper mechanism (not shown) is provided in the vicinity of the arm support 27.
- the rod-like member 31 extends upward from the lower ends 32 on the left and right, bends obliquely backward upward halfway along the way, and merges at the upper rear.
- the overall shape of the arm 3 includes an arm front portion 34 extending upward from an arm support seat 27 and an arm upper portion 35 connected to the upper portion of the arm front portion 34 and extending rearward and obliquely upward.
- the front cover member 36 constitutes an arm front 34.
- the front cover member 36 is disposed on the front side of the rod-like member 31 at an interval.
- the front cover member 36 is formed by bending the side surfaces of the front cover member 36 in the backward direction, and the inner space is defined.
- the battery 37 is accommodated in the internal space of the front cover member 36.
- the battery 37 is a power supply of the actuator 5 and the control unit.
- the upper cover member 38 is formed continuously with the front cover member 36 and constitutes an arm upper portion 35.
- the upper cover member 38 is disposed close to the upper side of the rod-like member 31.
- the upper cover member 38 is formed by bending both side surfaces downward, and the inner space is defined.
- the arm regulation mechanism 7, the link mechanism 6, and the support portion mounting seat 33 are provided in order from the front lower side to the rear upper side of the inner space of the upper cover member 38. In FIG. 1, the upper cover member 38 is not shown.
- the support portion 4 is formed to include a body support portion 41 and a pair of left and right side support portions 45.
- the fuselage support 41 is swingably supported by a support mounting seat 33 of the arm upper portion 35.
- the torso support 41 has a handle 42.
- the handle 42 is formed in a substantially rectangular frame shape. The handle 42 is not only a portion gripped by the person M but also a portion gripped by the helper in order to move the assistance device 1.
- the fuselage support portion 41 is formed of a base plate 43 (see FIG. 5), a fuselage contact member 44 and the like.
- the base plate 43 is formed in a substantially rectangular shape using a rigid plate material made of metal or resin.
- the base plate 43 is provided with the above-described handle 42, a portion attached to the support portion attachment seat 33, and a second link member 62 described later.
- the fuselage contact member 44 is formed larger than the base plate 43 by using a flexible material, and is attached to the upper surface of the base plate 43.
- the fuselage contact member 44 can have, for example, a two-layer structure consisting of a surface layer and a base layer.
- a low resilience urethane foam can be exemplified as a material for forming the surface layer, and a low flammability urethane foam can be exemplified as a material for forming the base layer.
- the torso support portion 41 supports the area from the chest to the abdomen of the torso which is a part of the body of the person being assisted M.
- the pair of left and right side support portions 45 are attached to the left and right sides of the body support portion 41 so as to be closer to the chest.
- the side support portion 45 is formed in an L-shape bent at an obtuse angle.
- the side support portion 45 is formed of a core member 46 (see FIG. 5), an outer peripheral member 47, and the like.
- the core member 46 is formed, for example, by bending a metal or hard resin round bar or a pipe into an L shape.
- the outer peripheral member 47 is formed in a cylindrical shape that covers the outer periphery of the core member 46 using a cushion material.
- the short linear portion from the proximal end on the mounting side of the side support portion 45 to the bending position is a shoulder receiving portion, and the long linear portion from the bending position to the tip is a side entry portion.
- the shoulder support portion supports the front of the shoulder of the person being assisted M.
- the side approach part enters the side of the both sides of the body of the person being assisted M.
- the torso support portion 41 and the side support portion 45 may include a removable cover made of cloth or leather.
- the actuator 5 includes a main body 51, a movable portion 52, a motor 53, and the like.
- the main body 51 is tiltably supported by the actuator support 22 of the base 2.
- the actuator 5 tilts in the front-rear direction.
- the movable portion 52 extends and retracts from the main body portion 51. Specifically, the movable portion 52 extends from the shortening position through a predetermined halfway position to the extension position and contracts in the opposite direction.
- the period during which the movable portion 52 extends from the shortening position to the intermediate position is the first operation
- the period during which the movable portion 52 extends from the intermediate position to the extended position is the second operation.
- the tip of the movable portion 52 is connected to a connection pin 613 of the link mechanism 6 described later.
- the motor 53 is provided to the main body 51.
- the motor 53 is controlled by the control unit (not shown) to control the direction of the flowing current, and drives the expansion and contraction operation of the movable portion 52.
- another type of drive source such as a pressure drive source using oil pressure or air pressure can be used.
- the link mechanism 6 is configured of a first link member 61, a second link member 62, a restriction member 63, and the like.
- FIG. 5 is a partially enlarged view for explaining the configuration and operation of the link mechanism 6 and corresponds to the initial state of the assistance device 1.
- 6 is a partially enlarged view for explaining the configuration and operation of the link mechanism 6, and corresponds to a state in the middle of the assistance device 1. As shown in FIG.
- the first link member 61 is an elongated member having a support point 611, a forearm 612, and a rear arm 616.
- the support point 611 is disposed near the center of the arm upper portion 35.
- the support point 611 is swingably supported by the structural member of the arm 3. Thereby, the first link member 61 swings around the support point 611.
- the forearm 612 extends forward from the support point 611.
- a connection pin 613 is provided at a lower portion of the front arm 612 near the front.
- the connection pin 613 connects the forearm portion 612 and the tip of the movable portion 52.
- a restricting protrusion 614 is formed on the front upper portion of the forearm portion 612.
- the rear arm 616 extends rearward from the support point 611.
- An engagement pin 617 is provided on the rear side of the rear arm 616 so as to extend in the left-right direction.
- the engagement pin 617 engages the second link member 62 from the counterclockwise direction in FIG. 5 to push the second link member 62.
- the second link member 62 is fixed to the base plate 43 of the support 4. Thereby, the support 4 and the second link member 62 integrally swing around the support mounting seat 33.
- the restricting member 63 is fixed to the front side structural member of the arm upper portion 35.
- the restricting protrusion 614 of the first link member 61 can be in contact with the restricting member 63.
- the movable portion 52 of the actuator 5 is in the shortening position. Further, the first link member 61 is swung clockwise, and the second link member is swung counterclockwise. There is a gap between the restricting protrusion 614 of the first link member 61 and the restricting member 63.
- the movable portion 52 which has started the first operation extends as shown by the arrow A1. Then, the forearm portion 612 of the first link member 61 is pushed via the connection pin 613. Thereby, the first link member 61 swings counterclockwise as shown by the arrow A2.
- the counterclockwise swing of the first link member 61 causes the engagement pin 617 of the rear arm 616 to swing the second link member 62.
- the second link member 62 pivots clockwise as indicated by the arrow A3, and the support 4 also pivots forward as indicated by the arrow A4. That is, the link mechanism 6 transmits the first movement in which the movable portion 52 extends from the shortening position to the predetermined halfway position to the forward swing of the support portion 4. This operation is continued until the movable portion 52 extends to a predetermined halfway position, and the state shown in FIG. 6 is reached.
- the arm restricting mechanism 7 is configured of a restricting guide member 71, an urging member 75, and the like.
- FIG. 7 is a partially enlarged view for explaining the configuration of the arm restricting mechanism 7 and corresponds to the initial state of the assistance device 1.
- FIG. 8 is a partially enlarged view for explaining the configuration and operation of the arm restricting mechanism 7 and corresponds to an intermediate state of the assistance device 1.
- the restriction guide member 71 is a member having a support point 72 at one end of the front upper side and a biasing point 73 at the other end of the rear lower side.
- the restriction guide member 71 further has an elongated hole 74 extending obliquely between the support point 72 and the biasing point 73.
- the support point 72 is disposed at a predetermined position 3A near the top of the arm front portion 34, and is pivotally supported by the structural member.
- the long hole 74 movably accommodates the connection pin 613, in other words, movably accommodates the tip of the movable portion 52.
- a coil spring can be used as the biasing member 75.
- the rear upper end 751 of the biasing member 75 is locked at the upper position 3 B of the arm 3.
- the upper position 3B of the arm 3 is on the upper side behind the predetermined position 3A.
- the other end 752 on the front lower side of the biasing member 75 is locked to the biasing point 73 of the regulating guide member 71.
- the biasing member 75 biases the upper position 3 ⁇ / b> B of the arm 3 in the direction approaching the restriction guide member 71 as shown by the arrow F 1. In other words, the biasing member 75 biases the upper position 3 B of the arm 3 toward the movable portion 52.
- the movable portion 52 of the actuator 5 is in the shortening position.
- the connection pin 613 is located at the rear lower end of the long hole 74.
- the restriction guide member 71 pivots clockwise about the support point 72.
- the restriction guide member 71 swings by 24 ° by the first operation of the movable portion 52. This operation is continued until the movable portion 52 extends to a predetermined halfway position and the restricting projection 614 abuts on the restricting member 63, and the state shown in FIG. 8 is reached.
- connection pin 613 is located at the front upper end of the long hole 74. Thereafter, when the movable portion 52 starts the second operation, the arm 3 swings, but the relative positional relationship between the arm 3 and the arm regulating mechanism 7 does not change.
- the biasing member 75 biases the upper position 3 ⁇ / b> B of the arm 3 toward the movable portion 52 through the initial state to the final state of the assistance device 1.
- the control unit (not shown) is composed of an operating unit, a control main unit, and the like.
- the operating device has a raising button and a lowering button for operating the actuator 5 and is operated by an assistant.
- the control main body unit is configured using a computer device having a CPU and operating with software. The control main body unit controls the direction of the current flowing through the motor 53 of the actuator 5 in accordance with the operation information acquired from the operation device.
- the assistance device 1 operates from the initial state shown in FIG. 2 to the final state shown in FIG. 4 through the intermediate state shown in FIG.
- the assistance device 1 operates in the reverse direction of the transfer operation in a substantially reverse order.
- the assistant returns the movable part 52 of the actuator 5 to the shortening position shown in FIG. Subsequently, the assistant grasps the handle 42 and moves the assistance device 1 to approach the person M in the sitting position.
- the assisted person M causes the lower body to enter the area below the support portion 4 and places both feet on the footrest 21.
- the support person M can obtain a stable posture by bringing a part of the lower leg into contact with the lower thigh rest 25.
- the support person M tilts the body forward to make surface contact with the body support portion 41, and leans against the side support portion 45 on both sides.
- the trunk support portion 41 is swung in the direction in which it stands up, the forward inclination angle of the trunk may be small.
- the side support portion 45 is substantially horizontal or slightly downward, the person M can easily lean on the side support portion 45.
- the posture of the person being assisted M at this time is the initial posture.
- the assistant may assist the series of actions of the person M who is assisted. In the initial position, the buttocks of the person being assisted M are on the seat. Therefore, the support person M has a comfortable posture because the load caused by the weight is supported by the buttocks.
- the assistant starts control of the ascending mode.
- the movable portion 52 of the actuator 5 starts the first operation and extends, and the first link member 61 swings counterclockwise in FIG. Further, the arm 3 maintains the rear position in the initial state.
- the support portion 4 interlocks with the second link member 62 and swings forward.
- the side supporting portion 45 is lowered to the front, the person being assisted M is restricted from moving backward and does not drop out of the supporting portion 4.
- the upper body of the person to be assisted M gradually advances forward. Then, when the movable portion 52 extends to a predetermined halfway position, the state shown in FIG. 3 is obtained. In the state of FIG. 3, the restricting protrusion 614 abuts on the restricting member 63, and the swinging of the first link member 61 is finished. Accordingly, the swinging of the support 4 also ends. And the buttocks of the person being assisted M are in the state of the moment they leave the seating surface.
- the arm 3 is driven by the movable portion 52 and pivots clockwise in FIG. 3.
- the actuator 5 tilts forward.
- the support 4 maintains a fixed posture with respect to the arm 3. This operation is continued until the final state of FIG. 4 in which the movable portion 52 extends to the extended position and the arm 3 reaches the front position.
- the upper body of the person being assisted M leans forward while moving forward and obliquely upward.
- the buttocks largely rise from the seat surface, and the legs become extended in the transfer posture.
- the assistance device 1 of the embodiment it is possible to drive the forward swing of the support 4 and the forward swing of the arm 3 using one actuator 5.
- the transfer operation of the person being assisted M becomes smooth, and the use comfort improves.
- the cost is low compared to the prior art that uses two actuators.
- the second link member 62 is allowed to be disengaged from the first link member 61. That is, the second link member 62 can be pivoted clockwise away from the engagement pin 617 of the first link member 61 (see FIG. 10). Thereby, the support part 4 freely swings forward. For this reason, it becomes possible to expand the field under the support part 4, and the person M can easily make the lower body approach. In addition, the thighs of the person being assisted M are not pinched by a strong force.
- FIG. 9 is a perspective view of the upper part of the arm 3 as viewed obliquely from above. As shown, the movable first link member 61 and the second link member 62 are covered by the upper cover member 38. As a result, the safety is improved, the appearance is simplified, and the aesthetic appearance is also improved. Furthermore, the arm 3 is formed by connecting the arm front portion 34 and the arm upper portion 35, and the actuator 5 is disposed close to the arm front portion 34. Therefore, a wide space area is secured below the support portion 4 and the person M does not feel cramped.
- FIG. 10 is a side cross-sectional view for explaining the unexpected rocking motion of the arm 3 and shows a state in which the movable portion 52 is at an intermediate position.
- the arm restricting mechanism 7 shown by a broken line in FIG. 10 restricts the unexpected swinging movement of the arm 3 by always accommodating the position of the connection pin 613 in the inside of the long hole 74. According to this embodiment, even if the link mechanism 6 has a degree of freedom, the arm restriction mechanism 7 eliminates the degree of freedom of the link mechanism 6 and restricts an unexpected operation of the arm 3. Therefore, according to the assistance device 1 of the embodiment, it is possible to restrict the unexpected operation of the arm 3 and ensure the comfort of use of the person being assisted M.
- the arm control mechanism 7 does not inhibit the drive by the actuator 5. If only the forward swing of the arm 3 is to be restricted, it is sufficient to bias the arm 3 rearward using a biasing member. However, in this case, the backward biasing force inhibits the drive by the actuator 5. On the other hand, according to the present embodiment, an unexpected operation of the arm 3 can be regulated without requiring a large output of the actuator 5 or the like.
- Assisting device 2 Base 22: Actuator bearing 27: Arm support seat 3: Arm 31: Bar-like member 33: Support portion mounting seat 38: Upper cover member 3A: Prescribed position 3B: Upper position 4: Support 5: Actuator 51: Body 52: Movable part 53: Motor 6: Link mechanism 61: First link member 611: Support point 612: Forearm 613: Coupling pin 614: Regulating projection 616: Rear arm 617: Engage pin 62 : Second link member 63: restricting member 7: arm restricting mechanism 71: restricting guide member 74: elongated hole 75: urging member M: support person
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Abstract
Description
実施形態の介助装置1について、図1~図10を参考にして説明する。図1は、実施形態の介助装置1を斜め後方から見た斜視図である。また、図2は、介助装置1が被介助者Mの移乗動作を介助する場合の初期状態を示す側面断面図である。図3は、介助装置1が被介助者Mの移乗動作を介助する場合の途中の状態を示す側面断面図である。図4は、介助装置1が被介助者Mの移乗動作を介助する場合の終期状態を示す側面断面図である。
次に、実施形態の介助装置1の動作、作用、および効果について説明する。以降では、被介助者Mの移乗動作を介助する上昇モードの制御および動作について説明する。上昇モードにおいて、介助装置1は、図2に示される初期状態から、図3に示される途中の状態を経て、図4に示される終期状態まで動作する。なお、被介助者Mの着座動作を介助する場合、介助装置1は、移乗動作の概ね逆順で逆方向に動作する。
次に、アーム規制機構7の作用および効果について説明する。実施形態の介助装置1において、基台2、アーム3、アクチュエータ5、および第一リンク部材61は、四節リンクを構成しており、動作の自由度が残されている。換言すると、外力が加えられた場合に、上記した四節リンクの形状は変化し得る。アーム規制機構7は、この四節リンクの自由度を無くして、アーム3の予想外の前方への揺動を規制する。図10は、アーム3の予想外の揺動動作を説明する側面断面図であり、可動部52の途中位置における状態を示している。
なお、本実施形態は、構成諸部材の形状や大きさの変更を始めとして、様々な変形や応用が可能である。
Claims (7)
- 被介助者の移乗動作を介助する介助装置であって、
基台と、
前記基台に前後方向に揺動可能に設けられたアームと、
前記被介助者の身体の一部を支持し、前記アームに前後方向に揺動可能に設けられた支持部と、
前記基台に前後方向に傾動可能に設けられた本体部、および前記本体部から伸縮する可動部を有するアクチュエータと、
前記可動部が短縮位置から所定の途中位置まで伸びる第一動作を前記支持部の前方への揺動に伝達し、前記可動部が前記途中位置から伸長位置まで伸びる第二動作を前記アームの前方への揺動に伝達するリンク機構と、
前記アームの上部位置を前記可動部に近付ける方向へ付勢するアーム規制機構と、
を備える介助装置。 - 被介助者の移乗動作を介助する介助装置であって、
基台と、
前記基台に前後方向に揺動可能に設けられたアームと、
前記被介助者の身体の一部を支持し、前記アームに前後方向に揺動可能に設けられた支持部と、
前記基台に前後方向に傾動可能に設けられた本体部、および前記本体部から伸縮する可動部を有するアクチュエータと、
前記可動部が短縮位置から所定の途中位置まで伸びる第一動作を前記支持部の前方への揺動に伝達し、前記可動部が前記途中位置から伸長位置まで伸びる第二動作を前記アームの前方への揺動に伝達するリンク機構と、
前記アクチュエータ以外の外力によって前記アームが前方へ揺動することを規制するアーム規制機構と、
を備える介助装置。 - 前記アーム規制機構は、前記アクチュエータによる駆動を阻害しない、請求項1または2に記載の介助装置。
- 前記アーム規制機構は、
前記可動部の先端を保持する保持部を有して、前記アームの所定位置に揺動可能に設けられた規制ガイド部材と、
前記アームの前記所定位置よりも上側の上部位置を、前記規制ガイド部材に近付ける方向へ付勢する付勢部材と、を有する、
請求項1~3のいずれか一項に記載の介助装置。 - 前記規制ガイド部材の前記保持部は、前記可動部の前記先端を移動可能に収容する長孔である、請求項4に記載の介助装置。
- 前記リンク機構は、前記アームに揺動可能に設けられて前記可動部に連結される第一リンク部材、および、前記支持部に固設されて前記第一リンク部材と係合する第二リンク部材を有する、請求項1~5のいずれか一項に記載の介助装置。
- 前記第一リンク部材は、前記アームに揺動可能に支持される支持点、前記支持点から前方に延びて前記可動部に連結されるとともに前記アームに設けられた規制部材に当接可能な前腕部、および、前記支持点から後方に延びて前記第二リンク部材と係合する後腕部を有し、
前記アーム規制機構は、前記アームの上部位置を、前記第一リンク部材と前記可動部の連結箇所に近付ける方向へ付勢する、
請求項6に記載の介助装置。
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SG11202004125YA SG11202004125YA (en) | 2017-12-06 | 2017-12-06 | Aid device |
EP17933921.3A EP3721849B1 (en) | 2017-12-06 | 2017-12-06 | Aid device |
PCT/JP2017/043843 WO2019111356A1 (ja) | 2017-12-06 | 2017-12-06 | 介助装置 |
CN201780096684.1A CN111315337B (zh) | 2017-12-06 | 2017-12-06 | 辅助装置 |
JP2019557926A JP6889783B2 (ja) | 2017-12-06 | 2017-12-06 | 介助装置 |
KR1020207009423A KR102359172B1 (ko) | 2017-12-06 | 2017-12-06 | 시중 장치 |
JP2019558033A JP6934535B2 (ja) | 2017-12-06 | 2018-10-04 | 介助装置 |
KR1020207009425A KR102359173B1 (ko) | 2017-12-06 | 2018-10-04 | 시중 장치 |
PCT/JP2018/037140 WO2019111514A1 (ja) | 2017-12-06 | 2018-10-04 | 介助装置 |
EP18884977.2A EP3721850B1 (en) | 2017-12-06 | 2018-10-04 | Aid device |
CN201880072630.6A CN111315338B (zh) | 2017-12-06 | 2018-10-04 | 辅助装置 |
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SG11202004127VA (en) | 2020-06-29 |
EP3721850A1 (en) | 2020-10-14 |
KR20200043478A (ko) | 2020-04-27 |
EP3721850B1 (en) | 2022-10-26 |
EP3721849B1 (en) | 2023-05-10 |
CN111315337A (zh) | 2020-06-19 |
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JP6934535B2 (ja) | 2021-09-15 |
JP6889783B2 (ja) | 2021-06-18 |
EP3721849A1 (en) | 2020-10-14 |
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KR102359173B1 (ko) | 2022-02-08 |
EP3721849A4 (en) | 2020-12-30 |
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