WO2017061151A1

WO2017061151A1 - Assistance device

Info

Publication number: WO2017061151A1
Application number: PCT/JP2016/069400
Authority: WO
Inventors: 剛裕野口; 丈二五十棲; 英明野村; 伸幸中根
Original assignee: 富士機械製造株式会社
Priority date: 2015-10-06
Filing date: 2016-06-30
Publication date: 2017-04-13
Also published as: JP7007912B2; JPWO2017061151A1

Abstract

Provided is an assistance device that a person being assisted can easily engage with. A side insertion portion (522a) of a side support member (52) is provided such that when a torso support member (51) is positioned in an engagement position in relation to a person being assisted (M) who is in a sitting posture, the side insertion portion is in an engagement position of extending from the torso support member (51) towards the rear of the person being assisted (M). When the torso support member (51) tilts forward to cause the person being assisted (M) to transition to a standing posture, the side insertion portion (522a) is provided so as to be in a standing posture of extending from the torso support member (51) towards the upper rear of the person being assisted (M).

Description

Assistance device

The present invention relates to an assistance device for assisting standing of a person being assisted.

Patent Document 1 describes an assistance device that assists a person being standing upright. The assistance device includes a trunk support member that supports the trunk of the person being assisted and a side support member that supports the side of the person being assisted. The body support member and the side support member can be lifted and lowered and tilted in the front-rear direction. Therefore, the assistance apparatus can shift the person being assisted from the sitting position to the standing position while supporting the body and the side of the person being assisted.

International Publication No. 2015/145915

Here, in Patent Document 1, the side support member is formed in a U-shape that opens upward, and includes portions facing the front and rear surfaces of the shoulder in addition to the armpit of the person being assisted. Therefore, in order for the person being assisted in the sitting position to get into the assistance device, in order for the person being assisted to be supported by the side support members, the person being assisted needs to raise his shoulders and elbows. It was. However, it is not easy for a caregiver to raise his shoulder and elbows high. In addition, in the case of a severely assisted person, assistance by the assistant may be required in order to make the side supported by the side support member. Even in such a case, the caregiver needs to get the caregiver into the assistance device while raising the shoulder and elbow of the caregiver, and the burden on the caregiver is large. For this reason, it is required that the person being assisted easily gets into the assistance device.
An object of the present invention is to provide an assistance device that allows a person being assisted to get in easily.

The assistance device according to the present invention is an assistance device that supports the upper body of the person being assisted and assists the person being standing upright. The assistance device has a base, an elevating part provided on the base so as to be movable up and down, and is formed in a planar shape, and is provided on the elevating part so as to be tiltable in the front-rear direction, and faces the front surface of the body of the person being assisted A body support member that contacts and supports the body, and a side support portion that is supported by the body support member and supports the side of the person being assisted.

The said side support part is provided with the side insertion part inserted in the side of the said care recipient. When the trunk support member is positioned at the boarding position with respect to the person being assisted in the sitting position, the side insertion portion is in a boarding attitude that extends from the trunk support member toward the rear of the person being assisted. When the trunk support member is tilted forward and the person being assisted is shifted to a standing position, the body support member is configured to rise from the trunk support member toward the rear of the person being assisted. Provided.

According to the assistance device, when the trunk support member is located at the boarding position, the side insertion portion is provided in a boarding posture extending rearward. Therefore, the person being assisted in the sitting posture can easily insert the side insertion portion into the side when getting into the assistance device. Therefore, the person being assisted in the sitting position can easily get into the assistance device.

Also, after the person being assisted gets into the assistance device, the body support member tilts forward, so that the person assisted changes from the sitting position to the standing position. As the body support member is tilted forward, the side insertion portion assumes a posture (rise posture) that prevents the person being assisted from falling backward. Therefore, when shifting to the standing posture, the side insertion portion supports the person being assisted in the standing posture from below and from the rear, and thus has high safety.

It is the perspective view which looked at the assistance apparatus in the state which the assistance person of the sitting posture gets in from diagonally back. The side view of the assistance apparatus of FIG. 1 is shown, and also the person being assisted in the standing-up assist operation start posture in the sitting posture is added. It is a side view which shows the relationship between the support main body of the trunk | drum support member which comprises the body support member of an assistance apparatus, and a side support member, Comprising: It is the figure which abbreviate | omitted the cushion material of the trunk | drum support member. It is the figure seen from IV direction (normal direction of a trunk | drum support member) of FIG. The side view of the assistance apparatus in the state in which the person being assisted has shifted to the standing posture is shown, and the person being assisted in the standing posture is added. The side view of the assistance apparatus in the state in which the person being assisted has shifted to the standing posture is shown, and the person being assisted in the standing posture is added. It is the perspective view which looked at the assistance apparatus in the state which the assistance person of the sitting posture gets in from diagonally backward, Comprising: It is a figure of the state which moved the side insertion part of the side support member to the outer side of FIG. . The side view of the assistance apparatus of FIG. 7 is shown, and also a caregiver with a large physique of a sitting posture is added.

(1. Configuration of assistance device 1)
The assistance apparatus 1 is demonstrated with reference to FIG.1 and FIG.2. FIG. 1 and FIG. 2 show the assistance device 1 in a state where a person M who is in a sitting position gets on. The assistance device 1 supports the upper body of the person being assisted M, and performs standing assistance from the sitting posture to the standing posture of the assisted person M. Furthermore, the assistance device 1 supports the upper body of the person being assisted M, and performs sitting assistance from the standing posture to the sitting posture of the assisted person M. Thereby, the assistance apparatus 1 can perform transfer assistance and movement assistance of the person M to be assisted.

It should be noted that the “standing posture” means a posture in which the lower body of the caregiver M stands, and the posture of the upper body is not questioned. That is, the standing assistance is assistance for the operation of moving the position of the buttocks of the person being assisted M upward. Further, the seating assistance is an operation assistance for moving the position of the buttocks of the person being assisted M downward.

The assistance device 1 includes a base 2, an elevating unit 3, a swinging unit 4, a body support member 5, a control unit 6, and the like. The base 2 includes a frame 21, a support 22 (shown in FIG. 2), a fixed cover 23, a foot rest 24, a crus rest 25, six wheels 26 to 28, and the like. The frame 21 is provided almost horizontally near the floor surface F. The column 22 is erected upward from the center in the left-right direction near the front of the frame 21. In the internal space of the substantially rectangular cross section of the support column 22, an elevating drive unit 32 described later is disposed. The fixed cover 23 covers and protects the support 22 and the lower part of the elevating member 31 described later.

The foot mounting table 24 is fixed to the rear of the upper surface of the frame 21 and is provided almost horizontally. A foot-shaped ground mark 241 drawn on the upper surface of the foot placement table 24 guides a position where the person being assisted M places his / her foot. The base 2 has sufficient mechanical strength even when the person being assisted is on the vehicle.

The lower leg support 25 is provided slightly above the ground mark 241 by a pair of left and

right support arms

251 and 251. The

support arms

251 and 251 are formed in an L shape, extend rearward from the left and right sides of the support column 22, bend in the middle, and extend upward. The lower thigh pad portion 25 is disposed across the upright portions of the left and right support arms 251 and extends in the left-right direction. The lower leg support part 25 is a part where the lower leg of the person being assisted M contacts, and is formed of a cushion material. The arrangement height of the lower leg pad 25 can be adjusted.

The lower side of the frame 21 is provided with three wheels 26 to 28 on the left and right. Each of the wheels 26 to 28 has a steering function for changing the moving direction, and at least the front wheel 26 has a lock function for restricting movement. By the six wheels 26 to 28, the frame 21 and the foot placing table 24 are kept slightly apart from the floor surface F and kept horizontal. With the steering function of the six wheels 26 to 28, the assistance device 1 can move not only in the front-rear direction and the direction change, but also in the lateral movement (movement to the side) and the super-revolution (in-situ turning). It has become.

The elevating unit 3 includes an elevating member 31, an elevating drive unit 32, an elevating cover 33, and the like. The elevating member 31 is a long member that is long in the vertical direction, and is supported on the rear surface of the support column 22 so as to be movable up and down. In the present embodiment, the elevating member 31 moves up and down by moving up and down with respect to the column 22, but may be moved up and down by swinging with respect to the column 22.

The upper part of the elevating member 31 protrudes rearward, and a swing support part 34 is provided near the protruding rear end. In the internal space above the elevating member 31, a swing drive unit 42 described later is disposed. The elevating drive unit 32 disposed in the internal space of the support column 22 drives the elevating operation of the elevating member 31. The elevating cover 33 covers and protects the elevating member 31 and the support column 22 around and above. The elevating cover 33 is coupled to the elevating member 31 and moves up and down together with the elevating member 31. The lower part of the elevating cover 33 that moves up and down always overlaps the outer peripheral side of the fixed cover 23.

The swing part 4 includes a swing member 41, a swing drive part 42, and a first handle 43. The swing member 41 is formed in an arm shape. The swing member 41 is provided to be swingable in the front-rear direction with respect to the elevating member 31. Specifically, one end of the swing member 41 is swingably supported by the swing support portion 34 of the elevating member 31. The swing drive unit 42 disposed in the internal space above the elevating member 31 swings the other end of the swing member 41 in the front-rear direction with one end of the swing member 41 as the swing center.

The first handle 43 is integrally provided at the other end of the swing member 41. The first handle 43 is formed in a substantially rectangular frame shape. The first handle 43 is formed so as to extend in the front upper direction from the other end of the swing member 41. The side portion of the first handle 43 is gripped by both hands of the person being assisted. Furthermore, the side part and the front part of the first handle 43 are gripped in order to move the assistance device 1 by the assistant.

The body support member 5 includes a body support member 51,

side support members

52 and 52, a second handle 53, and the like. The body support member 51 includes a support body 511 and a cushion material 512. The support body 511 is made of metal and is formed in a plate shape. The front lower side of the support body 511 is supported by the other end of the swing member 41. Accordingly, the support main body 511 can be tilted in the front-rear direction with respect to the elevating member 31 by the swing drive unit 42.

Furthermore, the support body 511 is supported by the swing member 41 so as to be freely tiltable in the front-rear direction within a predetermined angle range. The support main body 511 can tilt the predetermined angle range clockwise in FIG. 2 with the state shown in FIG. 2 as the end of the predetermined angle range. The free tilt means not a tilt driven by an actuator or the like but a tilt that can be moved manually.

Cushion material 512 is fixed on the rear upper side of the support body 511. The cushion material 512 is formed in a surface shape close to the body shape of the person being assisted M, and can be flexibly deformed. The support surface of the cushion material 512 is supported in surface contact with the front surface of the body of the person being assisted. In particular, the cushion material 512 supports the range from the chest to the abdomen of the person being assisted from below.

Side support members

52, 52 are provided on the left and right sides of the body support member 51. The side support member 52 includes a support body 521 and a side arm 522. The support body 521 of the side support member 52 is made of metal, and is swingably supported by the support body 511 of the body support member 51.

The side arm 522 supports the side of the person being assisted. The side arm 522 is formed in an L shape by a rod-shaped member. The surface of the side arm 522 is covered with a material that can be flexibly deformed. The side arm 522 includes a side insertion part 522a and a shoulder receiving part 522b.

The side insertion portion 522a is one L-shaped extending portion, and is formed in a substantially linear shape. The side insertion portion 522a is provided so as to extend rearward in FIG. The side insertion portion 522a is formed substantially in a straight line and is inserted beside the person being assisted. More specifically, the side insertion portion 522a is formed so as to extend rearward from the center portion of the body support member 51 in the vertical direction.

The shoulder receiving portion 522b is the other L-shaped extending portion and is formed in a substantially linear shape. The In FIG. 2, the shoulder receiving portion 522b is formed to extend upward from the front end of the side insertion portion 522a. The shoulder receiving portion 522b supports the front surface of the shoulder of the person being assisted. The length of the side insertion portion 522a is longer than the length of the shoulder receiving portion 522b. And the support main body 521 of the side support member 52 is being fixed to the front surface of the shoulder receiving part 522b.

The second handle 53 is integrally provided on the front surface of the support body 511 of the body support member 51. The second handle 53 is formed in a horizontally long U shape. The second handle 53 includes a base shaft portion that is fixed to the lower end of the support body 511 and extends in the left-right direction, and a grip portion that extends from both ends of the base shaft portion toward the first handle 43 side.

The control unit 6 is provided on the upper right side of the frame 21. The control unit 6 controls the elevation drive unit 32 and the swing drive unit 42 based on the person being assisted M or a command from the assistant. The control unit 6 can be a computer device that operates with software. The computer device may include an unillustrated remote control device that accepts a command from the person being assisted M or a helper. As software, a standing assistance program for assisting standing up and a sitting assistance program for assisting seating are stored so as to be executable. Below the control unit 6, a battery power source having a symbol that can be repeatedly charged and discharged is attached. A battery power source is also attached to the upper left side of the frame 21. The battery power source is also shared by the lift drive unit 32 and the swing drive unit 42.

(2. Swing structure of side support member 52)
Next, the turning structure of the side support member 52 will be described with reference to FIGS. 3 and 4. The support body 521 of the side support member 52 is pivotably provided on the support body 511 of the trunk support member 51 around a fulcrum 521a provided in front of the side insertion portion 522a. The fulcrum 521a is positioned above the center in the vertical direction of the support body 511 of the body support member 51 and shifted to the outside from the center in the left and right direction of the support body 511. The fulcrum 521a is located on the inner side in the left-right direction than the side arm 522. That is, the fulcrum 521a is located at a position corresponding to the vicinity of the collarbone of the person being assisted. The pivot axis A of the fulcrum 521a is parallel to the normal direction of the support body 521.

The support body 521 of the side support member 52 pivots around the fulcrum 521a with respect to the support body 511 of the body support member 51, so that the side insertion portion 522a of the side arm 522 is shown as indicated by a two-dot chain line in FIG. Is movable in the direction away from the side surface of the cushion material 512 of the body support member 51. That is, as the side support member 52 turns, the position of the side arm 522 in the left-right direction changes.

(3. Position and posture of body support member 51 and side support member 52)
Next, the relative positions and postures of the trunk support member 51 and the side support members 52 will be described with reference to FIG. FIG. 2 illustrates a state in which the assistance device 1 is located at the boarding position with respect to the person M who is in the sitting position.

When the body support member 51 is positioned at the boarding position as shown in FIG. 2 in the side view of the assistance device 1 (in the direction shown in FIG. 2), the normal vector of the support surface of the cushion material 512 of the body support member 51 Na is in the direction toward the rear and upward. The normal vector Na has an angle of 45 to 60 ° behind the vertical direction of the floor surface F.

The turning axis A of the fulcrum 521a of the side support member 52 is substantially parallel to the normal vector Na of the cushion material 512 in the side view of the assistance device 1. That is, when the trunk support member 51 is located at the boarding position, the pivot axis of the fulcrum 521a is also directed in the rear and upward direction.

The side arm 522 is disposed on the side of the cushion material 512 of the body support member 51. In the side view of the assistance device 1, the side insertion portion 522 a of the side arm 522 extends linearly from the support surface of the cushion material 512 of the body support member 51 toward the rear. The posture of the side insertion portion 522a is the “boarding posture”. Therefore, the rear direction vector Nb in the side insertion portion 522a and the normal vector Na of the cushion material 512 have an angle. However, the normal vector Na faces upward from the direction vector Nb when the assistance device 1 is viewed from the side.

Preferably, when the body support member 51 is located at the boarding position, the side insertion portion 522a has a boarding posture that extends substantially in the horizontal direction. The term “substantially horizontal direction” means to include a range inclined by 0 to 5 ° vertically relative to the horizontal direction. Furthermore, the angle θ formed by the normal vector Na of the cushion material 512 and the direction vector Nb of the side insertion portion 522a has an acute angle. The formed angle θ is preferably 10 to 50 °, and more preferably 35 to 45 °.

The shoulder receiving portion 522b of the side arm 522 is disposed on the side surface of the cushion material 512 of the body support member 51. When the assistance device 1 is viewed from the side, the shoulder receiving portion 522b extends linearly upward. Preferably, the shoulder receiving portion 522b has a posture that extends upward and forward.

And in the side view of the assisting device 1, the angle φ formed by the normal vector Na of the cushion material 512 and the direction vector Nc of the shoulder receiving portion 522b has an acute angle. The formed angle φ is preferably 40 to 80 °, and more preferably 45 to 60 °. The angle (θ + φ) formed by the direction vector Nb of the side insertion portion 522a and the direction vector Nc of the shoulder receiving portion 522b is preferably 90 to 120 °. That is, the side arm 522 has an L shape having a right angle or an obtuse angle.

(4. Auxiliary operation by the assistance device 1)
Next, the operation of assisting standing of the assistance device 1 will be described with reference to FIGS. 2, 5, and 6. As shown in FIG. 2, the assistance device 1 is configured such that the person M who is sitting in the chair C in the sitting posture and starts the standing-up assisting operation starting posture, and the buttocks of the person M to be assisted from the chair C as shown in FIG. Assist in standing motion to move to a standing position. In the standing operation, the assistance device 1 changes from the standing assistance operation start state shown in FIG. 2 to the standing preparation state shown in FIG. 5, and then enters the standing completion state shown in FIG.

First, the caregiver moves the assistance device 1 close to the helped person M in the sitting position. At this time, as shown in FIG. 2, the assistant operates the assistance device 1 so that the person M who is in the sitting position can get in. That is, the body support member 51 is positioned below the movable range in the vertical direction, and the normal vector Na of the body support member 51 in the side view is in a direction facing upward and rearward. Is done.

At this time, the assistant adjusts the height of the elevating member 31 according to the height of the person being assisted. Subsequently, the person being assisted M causes both legs to enter the lower side of the body support member 5. Here, when the body support member 5 gets in the way, the person being assisted M or the person who lifts the hand lowers the lower end of the body support member 5 so that both legs of the person assisted by the person M below the body support member 5. Easy to put on the side.

Next, the person being assisted M places both feet on the grounding mark 241 and brings the lower leg into contact with the lower leg application part 25. Furthermore, the person being assisted M places the trunk on the support surface of the cushion material 512 of the trunk support member 51. That is, the upper body of the person being assisted M is in a slightly tilted posture while being supported by the body support member 5.

At the same time, the caregiver M inserts the side insertion part 522a on the side. Here, the riding-in posture of the side insertion portion 522 a extends linearly rearward of the cushion material 512 of the body support member 51. In particular, the riding posture of the side insertion portion 522a extends substantially in the horizontal direction. Therefore, the person being assisted M easily inserts the side insertion portion 522a to the side. Therefore, the person being assisted M in the sitting position can easily get into the assistance device 1.

The person being assisted M is inserted to the side near the front end of the side insertion portion 522a, and the front surface of the shoulder is brought into contact with the shoulder receiving portion 522b. At this time, the assistant finely adjusts the height of the elevating member 31 in consideration of the posture of the assistant M. In this way, the assistance device 1 is set to the standing assistance operation start state. Then, the assistant causes the person being assisted to grip the first handle 43. At this time, the posture of the person being assisted M is the standing assistance operation start posture.

Subsequently, the assistant starts driving the assistance device 1 based on the standing assistance program of the assistance device 1. Thereby, the raising / lowering of the raising / lowering member 31 and the tilting of the rocking member 41 to the front are performed in cooperation.

When the standing assistance program is executed, the assistance device 1 is in the standing preparation state shown in FIG. The standing-up preparation state of the assistance device 1 is a state immediately before lifting the person M who is in the sitting position from the chair C. That is, the assistance device 1 enters the standing-up preparation state shown in FIG. 5 when the elevating member 31 descends and the swinging member 41 tilts forward from the standing-up assist operation start state shown in FIG. Here, when the assistance device 1 is in the standing-up preparation state, the buttocks of the person being assisted M comes into contact with the seating surface of the chair C, the trunk is tilted forward, and the trunk is stretched. The posture of the person being assisted M is referred to as a standing preparation posture.

While the assisting device 1 shifts from the standing assistance operation start state to the standing preparation state, the trunk support member 51 and the

side support members

52 and 52 are also tilted forward by the forward tilt of the swing member 41. At this time, as shown in FIG. 5, the rear end (left end in FIG. 5) of the side insertion portion 522a rises upward with respect to the front end (right end in FIG. 5). Accordingly, the side insertion portion 522a causes the supporter M to fall backward in a state in which the person being assisted M is in a standing posture, that is, before the buttocks of the person being assisted is completely separated from the seat surface of the chair C. To prevent.

When the standing assistance program is further continued, as shown in FIG. 6, the raising and lowering member 31 is raised and the swinging member 41 is further tilted forward, whereby the standing assistance program is completed. Then, the person being assisted M changes from the standing preparation posture to the standing posture. That is, the upper body of the person M who is in the standing posture is greatly inclined forward, and the position of the buttocks of the person M is positioned higher than the seat surface of the chair C. Then, the leg of the person being assisted M is in a substantially extended state.

Thus, after the person being assisted M gets into the assistance apparatus 1, the body support member 51 tilts forward, so that the person assisted by the person M moves from the standing assistance operation start posture in the sitting posture through the standing posture. Transition to a standing posture. As the body support member 51 is tilted forward, the side insertion portion 522a assumes a posture (rise posture) extending upward and rearward from the body support member 51. Therefore, when the person to be assisted M shifts to the standing posture through the stand-up preparation posture immediately after the start of the standing assistance operation of the assistance device 1, the side insertion portion 522a supports the person to be assisted M from below and from behind. Therefore, it is possible to prevent the person being assisted M from falling backward. Thus, the assistance device 1 has high safety when the person being assisted M shifts to the standing posture. In particular, the assistance device 1 has high safety when the person being assisted M is away from the seating surface of the chair C, that is, when the person being assisted M transitions from the standing posture to the standing posture.

In addition, the sitting assistance operation of the assistance device 1 is almost the opposite of the standing assistance operation. In other words, the to-be-assisted person M can be shifted from the standing posture to the sitting posture by lowering the elevating member 31 while the trunk supporting member 51 tilts backward. Then, the person M who is in the sitting posture can easily remove the side insertion portion 522a from the side.

(5. In the case of a caregiver M with a large physique)
Next, a case where the caregiver M having a large physique gets into the assistance device 1 will be described with reference to FIGS. 7 and 8. Here, it is assumed that the caregiver M having a large physique has a large lateral width of the chest.

In this case, as shown in FIGS. 7 and 8, the caregiver or the person being assisted M swings the side arm 522 around the fulcrum 521 a and moves the side insertion portion 522 a away from the side surface of the body support member 51. Move to position. That is, the distance between the left and right side insertion portions 522a is increased, and the trunk of the person M having a large physique can be applied to the cushion material 512 of the trunk support member 51.

As shown in FIG. 8, when the side arm 522 is swung and positioned at an angle different from the above-described case, the riding posture of the side insertion portion 522a extends substantially in the horizontal direction as described above. Therefore, the person being assisted M easily inserts the side insertion portion 522a to the side. Therefore, the person being assisted M in the sitting position can easily get into the assistance device 1 without the assistance of the assistant.

(6. Effects of the embodiment)
The assistance apparatus 1 according to the present embodiment is an assistance apparatus that supports the upper body of the person being assisted M and assists the person being assisted in standing up. The assistance device 1 includes a base 2, an elevating member 31 that can be moved up and down on the base 2, and is formed in a planar shape so as to be tiltable in the front-rear direction. A body support member 51 that supports the body by making surface contact with the front surface, and

side support members

52 and 52 that are supported by the body support member 51 and support the side of the person being assisted M are provided.

The side support member 52 includes a side insertion portion 522a that is inserted to the side of the person being assisted. As shown in FIG. 2, when the trunk support member 51 is located at the boarding position with respect to the person being assisted in the sitting position, the side insertion portion 522a is directed from the trunk support member 51 toward the rear of the person being assisted. It is provided so as to have an extended riding posture. On the other hand, as shown in FIG. 6, when the trunk support member 51 tilts forward, the side insertion portion 522a is moved from the trunk support member 51 to the person being assisted by the trunk support member 51. It is provided so that it may become the standing posture extended toward the upper back.

According to the assistance apparatus 1, when the trunk | drum support member 51 is located in the boarding position as shown in FIG. 2, it is provided so that the side insertion part 522a may be in the boarding attitude extended toward back. Therefore, the person M who is in the sitting posture can easily insert the side insertion portion 522a to the side when entering the assistance device 1. Therefore, the person being assisted M in the sitting position can easily get into the assistance device 1.

Further, after the person being assisted M gets into the assistance apparatus 1, the body support member 51 tilts forward, so that the person assisted M shifts from the sitting position to the standing position. As the body support member 51 is tilted forward, the side insertion portion 522a assumes a posture that prevents the person being assisted M from falling backward (a standing posture). Therefore, when shifting to the standing posture, the side insertion portion 522a supports the person M in the standing posture from below and from the rear, and thus has high safety.

In particular, as shown in FIG. 5, the side insertion portion 522 a is configured so that the body support member 51 is tilted forward, so that the body M is moved from the standing assistance operation start posture in the sitting posture to the standing preparation posture. The standing posture extends from the support member 51 toward the upper and rear sides of the person being assisted. After that, as shown in FIG. 6, the side insertion portion 522 a further rises when the body support member 51 further tilts forward to shift the person to be assisted M from the standing preparation posture to the standing posture.

Therefore, immediately before the buttock of the person being assisted M is separated from the seat surface of the chair C, the side insertion part 522a is in a state of supporting the person assisted by the standing posture M from below and from behind. As a result, the assistance device 1 has high safety when the person being assisted M is away from the seating surface of the chair C, that is, when the person being assisted M transitions from the standing preparation posture to the standing posture.

The side support member 52 is further provided with a shoulder receiving portion 522b that is provided at the front end of the side insertion portion 522a, is located on the side of the body support member 51, and supports the front surface of the shoulder of the person being assisted. Since the side support member 52 includes the side insertion portion 522a and the shoulder receiving portion 522b, the side of the person being assisted M is stably supported at a position near the shoulder receiving portion 522b in the side insertion portion 522a. Accordingly, the person being assisted M is supported by the body support member 51 on the front side of the body, the shoulder support part 522b of the side support member 52 is supported on the front side of the shoulder, and the side support member 52 is supported by the side insertion part 522a. Supported by. Therefore, the person being assisted M is stably supported by the assistance device 1.

The side support member 52 is formed in an L shape, the side insertion portion 522a is one extending portion of the L shape, and the shoulder receiving portion 522b is the other extending portion of the L shape. It is said that. As a result, the person being assisted M can easily get into the assistance apparatus 1 and the ride comfort is improved.

The length of the side insertion portion 522a is longer than the length of the shoulder support portion 522b. Thereby, in the state where the person being assisted M gets into the assistance device 1, the side insertion portion 522 a exists sufficiently behind the side of the person being assisted M, so that it is difficult for the person to be assisted to fall backward. Can give a sense of security. On the other hand, since the length of the shoulder support portion 522b is relatively short, in the state where the person being assisted gets into the assistance device 1, the person being assisted is not given a feeling of pressure by the shoulder support portion 522b. it can.

Further, the side insertion portion 522a and the shoulder receiving portion 522b of the side support member 52 are formed of rod-shaped members. In particular, the side insertion portion 522a is formed linearly by a rod-shaped member, and the shoulder receiving portion 522b is also formed linearly by the rod-shaped member. And the side insertion part 522a and the shoulder receiving part 522b are provided with an angle. In other words, the side insertion part 522a and the shoulder receiving part 522b are bent and formed by the rod-shaped member.

Thus, since the side insertion portion 522a is a linear rod-shaped member, the person being assisted M can have an impression that the side insertion portion 522a can be easily inserted to the side. From this, the person being assisted M can have a feeling that he can easily get into the assistance device 1. Furthermore, since the side insertion part 522a is a linear rod-like member, the person being assisted M can get a feeling of holding the side insertion part 522a aside in the state where the person being assisted gets into the assistance device 1. it can. That is, the person being assisted M can obtain a sense of security that it is supported by the side insertion portion 522a.

Furthermore, since the side insertion portion 522a is a linear rod-shaped member, it is easy to move the arm back and forth in a state where the person being assisted in the sitting position gets into the assistance device. That is, the ride comfort for the person being assisted is good. Even if the person being assisted M moves his / her arm back and forth, the person being assisted M can easily maintain the state where the side insertion portion 522a is sandwiched between the sides. For this reason, the person being assisted M can obtain a good riding comfort and can more easily feel a sense of security.

Further, the side insertion portion 522a is formed so as to extend from the center portion of the body support member 51 in the vertical direction toward the rear of the person being assisted. That is, the torso support member 51 supports from the chest located above the side to the abdomen located below the side of the body of the person being assisted M. Thus, since the trunk of the person being assisted M is supported by the trunk support member 51 over a wide range, the person being assisted M has a good sense of stability.

Further, the side insertion portion 522a is provided so as to have a boarding posture that extends substantially in the horizontal direction when the trunk support member 51 is positioned at the boarding position with respect to the person M who is in the sitting posture. As a result, the person being assisted in the sitting posture can easily insert the side insertion portion 522a to the side. Therefore, the person being assisted M in the sitting position can easily get into the assistance device 1.

Also, in the side view of the assistance device 1, the angle θ formed by the direction vector Nb toward the rear in the side insertion portion 522 a and the normal vector Na on the support surface of the trunk support member 51 is an acute angle. When the body support member 51 is located at the boarding position, the normal vector Na is directed upward from the direction vector Nb toward the rear in the side insertion portion 522a.

This makes it possible to make the side insertion portion 522a extend in the horizontal direction while keeping the support surface of the trunk support member 51 tilted forward from the vertical direction. Since the support surface of the trunk support member 51 is tilted forward, in the state where the trunk of the person being assisted M is supported by the trunk support member 51, the person being assisted M can obtain a sense of stability. On the other hand, the rear end of the side insertion portion 522a can be prevented from being positioned at a high position. Therefore, it becomes easy for the person M who is in the sitting posture to insert the side insertion portion 522a to the side. As described above, the assistance device 1 can achieve both of providing a sense of stability due to the trunk support member 51 tilted forward and obtaining ease of boarding.

In addition, an angle θ formed between the rearward direction vector Nb in the side insertion portion 522a and the normal vector Na of the support surface of the trunk support member 51 is preferably 10 to 50 °, and more preferably 35 to 45. °. Thereby, the assistance apparatus 1 can aim at coexistence of providing the sense of stability by the trunk | body support member 51 inclined forward, and obtaining ease of boarding.

In particular, when the trunk support member 51 is located at the boarding position, the normal vector Na of the trunk support member 51 is 45 to 60 ° rearward with respect to the vertical direction of the floor surface in the lateral view of the assistance device 1. In the state having the angle formed, the angle θ formed by the direction vector Nb and the normal vector Na is preferably 10 to 50 °. As a result, the person being assisted M can easily get into the body support member 51 tilted forward, can obtain a sense of security that the body support member 51 is supported while the body is supported, and the side insertion portion. It becomes easy to insert a side into 522a.

Also, the side support member 52 is provided on the body support member 51 so as to be pivotable about a fulcrum 521a provided in front of the person being assisted M from the side insertion portion 522a. The side insertion portion 522a is located when the body support member 51 is positioned at the boarding position, and in the state where the side support member 52 is rotated with respect to the body support member 51, the body support member 51 receives the helper M. It is provided so that it may become the boarding attitude | position extended toward back.

As a result, when the person being assisted M inserts the side insertion part 522a to the side, the side insertion part 522a is swung so as to be aligned with the side of the person being assisted around the fulcrum 521a provided at the front. It is done. Accordingly, the position of the side insertion portion 522a can be matched with the physique of the person being assisted M, so that the person assisted by the person being assisted into the assistance device 1 can be facilitated. Furthermore, even if the side insertion portion 522a is turned around the fulcrum 521a, the side insertion portion 522a extends from the body support member 51 toward the rear. Therefore, regardless of the physique of the person being assisted M, the person assisted by M can easily get into the assistance device 1.

Further, the side insertion portion 522a is a riding posture that extends substantially in the horizontal direction when the body support member 51 is positioned at the boarding position and the side support member 52 is positioned at a different angle with respect to the body support member 51. It is provided to become. Thereby, regardless of the physique of the person being assisted, the person being assisted in the sitting posture can easily insert the side insertion portion 522a to the side. Therefore, the person being assisted M in the sitting position can easily get into the assistance device 1.

1: assistance device, 2: base, 3: lifting unit, 4: swinging unit, 5: body support member, 6: control unit, 31: lifting member, 32: lifting drive unit, 41: swinging member, 42 : Swing drive unit, 51: trunk support member, 52: side support member, 511: support body, 512: cushion material, 521a: support body, 521a: fulcrum, 522: side arm, 522a: side insertion part, 522b: Shoulder support part, A: Axis of rotation, M: Assisted person, Na: Normal vector of the support surface of the cushion material of the body support member in the lateral view, Nb: Direction vector toward the rear of the side insertion part in the lateral view , Nc: direction vector of shoulder support in side view, θ: angle formed by normal vector Na and direction vector Nb, φ: angle formed by normal vector Na and direction vector Nc

Claims

An assistance device for supporting the upper body of the person being assisted and assisting the person being standing upright,
The base,
An elevating member provided on the base so as to be movable up and down;
A body support member that is formed in a planar shape and is provided on the elevating member so as to be tiltable in the front-rear direction, and is in surface contact with the front surface of the body of the person being assisted;
A side support member supported by the body support member and supporting the side of the person being assisted;
With
The side support member includes a side insertion part that is inserted into the side of the person being assisted,
The side insertion part is
When the trunk support member is positioned at the boarding position with respect to the person being assisted in the sitting position, the trunk support member is provided so as to have a boarding attitude extending from the trunk support member toward the rear of the person being assisted,
When the body support member is tilted forward and the person being assisted is shifted to a standing position, the body support member is provided to be in a standing position extending from the body support member toward the upper and rear sides of the person being assisted. Assistance device.
The said side support member is provided in the front end of the said side insertion part, is located in the side of the said trunk | drum support member, and is further provided with the shoulder receiving part which supports the front surface of the said care recipient's shoulder. Assistance device.
The side support member is formed in an L shape,
The side insertion portion is one of the L-shaped extending portions,
The assisting device according to claim 2, wherein the shoulder receiving portion is the other extending portion of the L shape.
The assisting device according to claim 3, wherein a length of the side insertion portion is longer than a length of the shoulder support portion.
The assisting device according to any one of claims 1 to 4, wherein the side insertion portion is formed so as to extend from a center portion in the vertical direction of the trunk support member toward the rear of the person being assisted.
The side insertion portion is provided so as to be in the boarding posture extending in a substantially horizontal direction when the trunk support member is positioned at the boarding position with respect to the person being assisted in the sitting posture. The assistance device according to any one of 5.
In the side view of the assistance device,
The angle formed by the direction vector toward the rear in the side insertion portion and the normal vector in the support surface of the trunk support member is an acute angle,
The normal vector of the support surface is directed upward from the direction vector toward the rear of the side insertion portion when the trunk support member is located at the boarding position. The assistance device according to item.
The assisting device according to claim 7, wherein an angle formed by the direction vector directed backward in the side insertion portion and the normal vector of the support surface is 10 to 50 °.
The side support member is provided so as to be pivotable to the trunk support member around a fulcrum provided in front of the person being assisted than the side insertion portion,
The side insertion portion is when the trunk support member is located at the boarding position, and in the state where the side support member is swung with respect to the trunk support member, from the trunk support member to the person being assisted The assistance device according to any one of claims 1 to 8, wherein the assistance device is provided so as to have a boarding posture extending rearward.
The side-insertion portion is when the trunk support member is located at the boarding position, and the boarding posture extends in a substantially horizontal direction when the side support member is positioned at a different angle with respect to the trunk support member. The assistance device according to claim 9, which is provided to be