JP2017038628A - Stand-up assisting device - Google Patents

Abstract

A stand-up assisting device capable of improving the holding force for a person being assisted during stand-up assist.
A pair of holding members (70a, 70b) for holding and holding an auxiliary guard supported by a breast pad (40) is provided, and the holding members (70a, 70b) are connected to the breast pad (40). The first holding portions 71a and 71b are connected to each other so as to be tiltable and hold the armpits of the assistant guardians, and are respectively connected to the first holding portions 71a and 71b so as to be tiltable so as to be supported by the assistant guardians. Second holding portions 72a and 72b for holding the back are provided.
[Selection] Figure 4

Description

  The present invention relates to a start-up assisting device that assists the start-up of a person being assisted.

  Conventionally, a transfer machine disclosed in the following Patent Document 1 is known as a technology related to a stand-up assisting device that assists a stand-up of an assisting person such as an elderly person or a handicapped person who is difficult to stand up from a posture sitting on a chair or the like. ing. In this Patent Document 1, as a transfer machine that assists the rising of the person being assisted, the seating surface and the arm are moved up and down in the vertical direction with respect to the carriage body to assist the person who is sitting on the seating surface from rising. A configuration is disclosed in which the arm rotates with respect to the carriage body to assist the standing of the person who sits on the seating surface.

Japanese Patent No. 4746147

  By the way, in the configuration as disclosed in Patent Document 1, the person to be assisted is lifted according to the movement of the arm that moves linearly or the movement of the arm that rotates according to the conversion of the linear movement. In particular, the arm is provided with a breast pad and an auxiliary arm that is attached to both ends of the main arm so as to be pivotable to the left and right. The bottom is supported, and the abdomen is supported from the chest of the assistant by the breastplate.

FIG. 13 is an explanatory diagram schematically illustrating a state in which a person being supported is held by conventional support members 100a and 100b that are not in contact with the back. FIG. 14 is an explanatory diagram schematically illustrating a state in which a person being supported is held by conventional support members 100a and 100b in which the distal end sides 102a and 102b are in contact with the backrest 110. FIG.
In order to securely hold the person being assisted, it is desirable that the person not only be supported and held by the chest or armpit, but also from the armpit to the back. For this reason, it is conceivable to hold the back on the distal end side of the support member by curving the distal end side of the support member that supports the armpit. However, in the configuration in which the front end side of the support member is simply curved, even if the intermediate portions 101a and 101b of the support members 100a and 100b contact the armpit as illustrated in FIG. There exists a problem that the front end sides 102a and 102b do not contact the back and the holding force by the support members 100a and 100b is reduced. Further, as illustrated in FIG. 14, when the front end sides 102 a and 102 b come into contact with a rear object such as the backrest 110, the intermediate portions 101 a and 101 b do not come into contact with the armpits. Even in such a case, the support members 100 a and 100 b There is a problem that the holding force due to decrease.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a stand-up assisting device capable of improving the holding force for the person being assisted during stand-up assist.

In order to achieve the above object, the invention of claim 1 according to claim 1 is a stand-up assisting device (10) for assisting the stand-up of a person being assisted, comprising a base (20) and the assistant guardian's A breast pad (40) for supporting the chest, an arm (30) connecting the base and the breast pad, and a displacement mechanism (50) for moving the breast pad relative to the base by displacing the arm. , 60) and a pair of holding members (70) for sandwiching and holding the assistant guard supported by the breast pad, the holding member against the breast pad or the breast pad side of the arm A first holding part (71a, 71b) connected to be tiltable to hold the armpit of the auxiliary guard, and a back of the auxiliary guard connected to the first holding part so as to be tiltable. To hold The second holding portion with the (72a, 72b), characterized by having a.
In addition, the code | symbol in each said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.

  According to the first aspect of the present invention, a pair of holding members are provided for holding and holding an assistant guard supported by the breastplate, and the holding members can be tilted with respect to the breastplate or the breastplate side of the arm. A first holding part that is connected to the first guard part to hold the armpit of the auxiliary guard, and a second holding part that is tiltably connected to the first holding part to hold the back of the assistant guardian. Is provided.

  Thus, the assistant guardian supported by the breastplate holds the armpits by the first holding portions tilted inward, and the back is held by the second holding portions tilted further inward. Therefore, underarm tightening does not become weak depending on the physique of the assistant. Furthermore, since the second holding portion is easily pressed against the back, the holding member can be made difficult to interfere with the backrest or the like. Therefore, the holding force for the person to be assisted can be improved even at the time of standing assistance when the breastplate moves relative to the base by the displacement mechanism.

  In the invention of claim 2, since the distance between one second holding portion and the other second holding portion of the pair of holding members can be adjusted by the connecting member, both the second holding portions are of the assistant guardian. Not only is it surely pressed against the back, but both first holding parts are reliably pressed against the armpit of the assistant guardian. Thereby, the retention strength with respect to a to-be-supported person can be improved reliably.

  In the invention of claim 3, the displacement mechanism is provided with a tilting mechanism for tilting the arm with respect to the base and an expansion / contraction mechanism for expanding and contracting the arm. For this reason, not only a monotonous trajectory like a linear trajectory but also a complicated trajectory like a curved trajectory can be realized by extending the arm by an expansion / contraction mechanism and tilting the arm by a tilting mechanism. be able to. Thereby, the extension / contraction mechanism and the tilting mechanism are controlled so that the trajectory of the breastplate approaches the trajectory of the movement of the assistance person naturally rising, while reducing the burden on the body of the assistance person at the time of assistance of the rising, The holding power with respect to the person being assisted can be improved.

It is a front view of the stand-up auxiliary device concerning a 1st embodiment. It is a side view of the stand-up auxiliary | assistance apparatus of FIG. It is a perspective view which shows the state which removed the breastplate etc. from the stand-up assistance apparatus. It is explanatory drawing which illustrates schematically the holding | maintenance state of the to-be-supported person by a pair of holding member and a breast pad. FIG. 2 is a block diagram schematically showing an electrical configuration of the rising assist device in FIG. 1. It is explanatory drawing explaining the way of a person to be aided at the time of assistance of standing up. It is a time chart which shows the control state of the motor for tilting and the motor for expansion-contraction at the time of assisting start-up. It is explanatory drawing explaining the locus | trajectory of the breast pad at the time of standing-up assistance. It is a side view which shows the stand-up auxiliary | assistance apparatus of the accommodation state. It is a side view which shows the principal part of the stand-up assistance apparatus which concerns on the 1st modification of 1st Embodiment. It is a side view which shows the principal part of the stand-up assistance apparatus which concerns on the 2nd modification of 1st Embodiment. It is explanatory drawing which shows the principal part of the stand-up assistance apparatus which concerns on 2nd Embodiment. It is explanatory drawing which illustrates schematically the state holding the to-be-supported person by the conventional support member which is not contacting the back. It is explanatory drawing which illustrates schematically the state which hold | maintains a to-be-supported person by the conventional support member in which the front end side is contacting the backrest.

[First Embodiment]
Hereinafter, a first embodiment of a rising assist device according to the present invention will be described with reference to the drawings. FIG. 1 is a front view of a rising assist device 10 according to the present embodiment. FIG. 2 is a side view of the rising assist device 10 of FIG. FIG. 3 is a perspective view showing a state in which the breast pad 40 and the like are removed from the rising assist device 10. FIG. 4 is an explanatory diagram for schematically explaining the holding state of the person being supported by the pair of holding members 70 and the breast pad 40. FIG. 5 is a block diagram schematically showing an electrical configuration of the rising assist device 10 of FIG. In FIG. 3, illustration of the second rail member 34 and the like of the arm main body 32 a is omitted for convenience.

  The stand-up assisting apparatus 10 according to the present embodiment is an apparatus that assists the stand-up of an assisting person such as an elderly person or a handicapped person who is difficult to stand up from a posture seated on a chair or the like. As shown in FIGS. 1 to 5, the rising assist device 10 mainly includes a base 20, a telescopic arm 30, a breast pad 40, a tilting mechanism 50, a telescopic mechanism 60, and a pair of holding members 70. And a control unit 80 for controlling the tilting mechanism 50 and the expansion / contraction mechanism 60.

  The base 20 includes a base body 21 and four wheels 22. The base main body 21 is for an assisting person to put his / her foot on when assisting standing up, and a foot shape 21a is formed on the upper surface of the base body 21 in order to clarify the place where the assisting person steps on. Each wheel 22 is provided at the four corners of the lower surface of the base body 21. In addition, a pair of support columns 23 a and 23 b that support the arm 30 and the like are disposed at the front end of the base body 21 so as to stand upright. In addition, a knee pad 24 is provided at the upper ends of both supports 23a and 23b to support the knee of the person to be assisted on the foot 21a.

  As shown in FIG. 3, the arm 30 includes tilting pieces 31 a and 31 b that are tiltably connected to both the columns 23 a and 23 b, and a pair of extendable arm bodies 32 a and 32 b. The arm main body 32 a has one end fixed to the tilting piece 31 a, a second rail member 34 slidably provided with respect to the first rail member 33, and the second rail member 34. A screw screw 35 supported rotatably along the longitudinal direction, and a nut member fixed to the first rail member 33 and relatively moving the screw screw 35 in the longitudinal direction in accordance with the rotation of the screw screw 35 36. Similarly to the arm main body 32a, the arm main body 32b also includes a first rail member 33, a second rail member 34, a screw screw 35, and a nut member 36, one end of which is fixed to the tilting piece 31b. The arm main bodies 32 a and 32 b configured in this way expand and contract by sliding (sliding) the second rail member 34 relative to the first rail member 33 in accordance with the rotation of the screw screw 35. It is configured as follows.

  Accordingly, the arm 30 is configured to be extendable and contracted, and one end thereof is connected to the base 20 so as to be tiltable.

  The breast pad 40 is a member that supports the chest of the assistant guardian, and is configured such that a protective member such as a cushion is disposed at least on the breast pad surface 41 in contact with the chest of the assistant guardian. The breast pad 40 is connected to the other ends of the arm bodies 32a and 32b of the arm 30 so as to be moved relative to the base 20 in accordance with the displacement (tilting / extension / contraction) of the arm 30 as will be described later. It is configured.

  The pair of holding members 70 are members for holding and holding the assistant guard supported by the breast pad 40, and as conceptually shown in FIG. 4, one end in the longitudinal direction of the breast pad 40 (in FIG. 4). One holding member 70a that is tiltably coupled to the left side) and the other holding member 70b that is tiltably coupled to the other longitudinal end of the breastplate 40 (right side in FIG. 4). One holding member 70a and the other holding member 70b are assembled to the breast pad 40 so that the assistant guardian can easily enter the space surrounded by the breast pad 40 and both the holding members 70a and 70b.

  One holding member 70a includes a first holding portion 71a for holding the armpit of the assistant guardian and a second holding portion 72a for holding the back of the assistant guardian. The first holding portion 71a and the second holding portion 72a are configured such that the periphery of the frame serving as the skeleton is covered with a protective member such as a cushion.

  At one end in the longitudinal direction of the breast pad 40, a tilting shaft 73a extending so as to be substantially parallel to the breast pad surface 41 is provided, and one end of the frame of the first holding portion 71a is connected to the tilting shaft 73a. It is connected so that it can tilt. Thereby, the 1st holding | maintenance part 71a is connected with respect to the breast pad 40 so that it may tilt along the arrow F1a of FIG. 4 centering on the tilting shaft 73a. The other end of the frame of the first holding portion 71a is provided with a tilting shaft 74a extending so as to be substantially parallel to the tilting shaft 73a. The second holding portion is provided with respect to the tilting shaft 74a. One end of the frame 72a is connected to be tiltable. Thus, the second holding portion 72a is connected to the first holding portion 71a so as to tilt along the arrow F2a in FIG. 4 about the tilting shaft 74a. Thereby, one holding member 70a is assembled | attached with respect to the breast pad 40 so that the part of the tilting shaft 73a and the part of the tilting shaft 74a may each function as a joint. The tilt shaft 73a may be provided at one end of the frame of the first holding portion 71a. Further, the tilt shaft 74a may be provided at one end of the frame of the second holding portion 72a.

  The other holding member 70b includes a first holding part 71b for holding the armpit of the assistant guardian and a second holding part 72b for holding the back of the assistant guardian. The first holding part 71b and the second holding part 72b are configured such that the periphery of the frame serving as the skeleton is covered with a protective member such as a cushion.

  At the other end in the longitudinal direction of the breast pad 40, a tilting shaft 73b extending so as to be substantially parallel to the breast pad surface 41 is provided, and one end of the frame of the first holding portion 71b with respect to the tilting shaft 73b. Are connected to be tiltable. Thereby, the 1st holding | maintenance part 71b is connected with respect to the breast pad 40 so that it may tilt along the arrow F1b of FIG. 4 centering on the tilting shaft 73b. The other end of the frame of the first holding portion 71b is provided with a tilting shaft 74b extending so as to be substantially parallel to the tilting shaft 73b. The second holding portion is provided with respect to the tilting shaft 74b. One end of the frame 72b is connected to be tiltable. Thus, the second holding portion 72b is connected to the first holding portion 71b so as to tilt along the arrow F2b in FIG. 4 about the tilting shaft 74b. Thereby, the other holding member 70b is assembled to the breast pad 40 so that the portion of the tilting shaft 73b and the portion of the tilting shaft 74b function as joints. The tilt shaft 73b may be provided at one end of the frame of the first holding portion 71b. Further, the tilt shaft 74b may be provided at one end of the frame of the second holding portion 72b.

  The pair of holding members 70 is provided with a connecting belt 75 that functions as a connecting member capable of connecting the other end side of the second holding portion 72a and the other end side of the second holding portion 72b. The connecting belt 75 is a known belt whose length in the longitudinal direction can be adjusted, and the other length side of the second holding portion 72a and the other end side of the second holding portion 72b are adjusted to the adjusted length. By connecting or connecting the other end side of the second holding part 72a and the other end side of the second holding part 72b and adjusting the length thereof, the other end side of the second holding part 72a and the second holding side are adjusted. It functions to adjust the distance from the other end of the portion 72b. Note that the connecting belt 75 is not limited to be simply configured to be adjustable in length in the longitudinal direction. For example, the connecting belt 75 may be configured to extend and contract in the longitudinal direction by partially adopting a stretchable member such as a rubber member. It may be configured to be adjustable. The connection belt 75 is not shown in FIG. 1 and the like for convenience.

Next, the tilting mechanism 50 and the telescopic mechanism 60 will be described. The tilt mechanism 50 and the telescopic mechanism 60 constitute a displacement mechanism that moves the breastplate 40 relative to the base 20 by displacing the arm 30.
The tilting mechanism 50 is a mechanism for tilting the arm 30 with respect to the base 20 and includes a tilting motor 51 with a speed reducer. The tilting motor 51 is installed on the column of the base 20 and is driven and controlled by the control unit 80 to function to adjust the tilting angle of the arm 30 with respect to the base 20. This tilting motor 51 is provided with a sensor (not shown) for detecting the rotation angle and the like, and the detection result of this sensor is output to the control unit 80.

  The expansion / contraction mechanism 60 is a mechanism for expanding / contracting the arm 30 and includes an expansion / contraction motor 61 with a reduction gear. The expansion / contraction motor 61 is installed in the vicinity of the back surface of the breast pad 40, and is driven and controlled by the control unit 80. By rotating the screw screw 35 of the arm 30, the arm 30 is expanded and contracted to adjust its length. To function. The expansion / contraction motor 61 is provided with a sensor (not shown) for detecting the rotation angle and the like, and the detection result of the sensor is output to the control unit 80.

  As shown in FIG. 5, the control unit 80 mainly includes a control unit 81 that governs overall control of the startup assisting device 10, and a memory 82, an operation unit 83, and the like are connected to the control unit 81. Yes. The control unit 81 is configured mainly with a microcomputer, has a CPU, a system bus, an input / output interface, and the like, and functions as an information processing device together with the memory 82. The memory 82 is configured by a known semiconductor memory such as a ROM, a RAM, and a nonvolatile memory, and is configured to be able to store various data such as an operation program for operating a startup assist process described later and various control patterns. Yes. The operation unit 83 includes a plurality of keys and is configured to give an operation signal to the control unit 81 in accordance with a user's key operation.

Next, the startup assistance process performed by the controller 81 in the startup assistance device 10 configured as described above will be described below.
In the present embodiment, in order to realize standing assistance suitable for the assistant, a plurality of patterns of the locus of the breast pad 40 when assisting the assistant's standing are prepared. The trajectory of the breast pad 40 is obtained by driving and controlling the tilting motor 51 and the telescopic motor 61 with a predetermined control pattern. A plurality of control patterns associated with the trajectory are preset and stored in the memory 82. It is remembered. Then, in response to the operation of the operation unit 83 for selecting the trajectory of the breast pad 40, the start-up assisting process by the control unit 81 is started, and based on the control pattern read from the memory 82 corresponding to the selected trajectory of the breast pad 40. The tilting motor 51 and the expansion / contraction motor 61 are driven and controlled to assist the person being raised.

  Here, a specific example of the startup assistance process will be described in detail with reference to FIGS. 6A and 6B are explanatory diagrams for explaining how to raise the person being assisted during start-up assistance. FIG. 6A shows a state immediately before the start of assistance, FIG. 6B shows a drawing state, and FIG. 6 (C) shows a state in the middle of lifting, and FIG. 6 (D) shows a state in which the assistance for rising is completed. FIG. 7 is a time chart showing the control states of the tilting motor 51 and the telescopic motor 61 at the time of assisting rising. FIG. 8 is an explanatory diagram for explaining the trajectory of the breastplate 40 at the time of assisting standing up. In FIG. 6, for the sake of convenience, illustration of a chair or the like on which the person being assisted is sitting is omitted.

  First, as shown in FIG. 6 (A), the knees of both feet placed on the foot pattern 21a of the base 20 are in contact with the knee pads 24 and in contact with the chest pad surface 41 of the breast pads 40 at the chest. Is held using a pair of holding members 70. In this holding state, the first holding portions 71a and 71b are tilted inward until they are located under the assistive guardian, and the second holding portions 72a and 72b are tilted inward until they contact the back of the assistant guardian. The connecting belt 75 adjusts the distance between the other end side of the second holding portion 72a and the other end side of the second holding portion 72b according to the physique of the assistant guardian.

  In this holding state, when a desired trajectory of the breast pad 40 is selected according to the operation of the operation unit 83, the rising assist process is started, and for example, a control pattern as illustrated in FIG. .

  Next, under the control of the control unit 81, the telescopic motor 61 rotates in the contraction direction so that the arm 30 is shortened by a predetermined amount from the reference length and the breast pad 40 approaches the base 20 (t0 in FIG. 7). -See t1). As a result, as illustrated in FIG. 6B, as a result of the chest pad 40 that supported the chest of the assistant being moved away from the chest, the assistant tilted forward and the chest became deeper into the breast pad 40. It will be in the attracted state supported. At this time, as can be seen from FIG. 7, the tilting motor 51 is not driven.

  Subsequently, under the control of the control unit 81, the telescopic motor 61 rotates in the extending direction so that the length of the arm 30 becomes the reference length (see t1 in FIG. 7), and the arm 30 tilts in the rising direction. Thus, the tilting motor 51 rotates (see t1-t2 in FIG. 7). As a result, as illustrated in FIG. 6C, the person to be supported whose upper body is held by the breastplate 40 and the pair of holding members 70 starts to be lifted forward.

  The telescopic motor 61 is further rotated in the extending direction until the length of the arm 30 exceeds the reference length and reaches the length at the time of standing, and further tilted until the arm 30 reaches the tilting angle at the time of standing. The tilting motor 51 rotates (see t2-t3 in FIG. 7). Then, as illustrated in FIG. 6D, when the length of the arm 30 is extended to the length at the time of standing and the arm 30 is tilted to the tilting angle at the time of standing, the displacement (expansion / tilting) of the arm 30 is finished, The assistant's start-up assistance is completed.

  In the above-described rising assist process, the trajectory of the breast pad 40 connected to the other end of the arm 30 is close to the trajectory of the natural rising action of the person as shown by the arrow α in FIG. This reduces the burden on the body of the assistant. This trajectory is different between, for example, a person with a large body and a person with a small body, so by selecting a control pattern corresponding to the trajectory of the breast pad 40 suitable for the body shape, etc., assisting in standing up suitable for the person being supported Can be implemented.

FIG. 9 is a side view showing the rising assist device 10 in the accommodated state. In addition, in FIG. 9, illustration of the cover etc. which protect the tilting piece 31a of the arm 30 is abbreviate | omitted for convenience.
Further, the stand-up assisting device 10 configured as described above has a telescopic mechanism so that the arm 30 contracts as shown in FIG. 9 by the control unit 81 in accordance with an accommodating operation with respect to the operation unit 83. 60 is controlled, and the tilting mechanism 50 is controlled so that the arm 30 tilts toward the base 20. Thereby, since the arm 30 whose overall length is shortened is close to the base 20, the rising assist device 10 is folded into a compact state suitable for accommodation.

  As described above, in the standing assist device 10 according to the present embodiment, the pair of holding members 70 (70a, 70b) for holding and holding the assistant guard supported by the breastplate 40 are provided. The holding members 70a and 70b are respectively connected to the breastplate 40 so as to be tiltable and hold first arm portions 71a and 71b for holding the armpit of the assistant guard, and the first holding portions 71a and 71b. On the other hand, there are provided second holding portions 72a and 72b that are connected to each other so as to be tiltable and hold the back of the assistant guardian.

  Accordingly, the assistant guardian supported by the breastplate 40 holds the armpits by the first holding portions 71a and 71b tilted inward, and the second holding portions 72a and tilted further inward. Since the back is held at 72b, underarm tightening does not become weak depending on the physique of the person being assisted. Furthermore, since the second holding portions 72a and 72b are easily pressed against the back, the holding members 70a and 70b can be made difficult to interfere with the backrest and the like. Accordingly, the holding force with respect to the person being assisted can be improved even at the time of standing-up assistance in which the breast pad 40 moves relative to the base 20 by the displacement mechanism (tilting mechanism 50 and expansion / contraction mechanism 60).

  Further, since the distance between one second holding portion 72a and the other second holding portion 72b of the pair of holding members 70 can be adjusted by the connecting belt 75, both the second holding portions 72a and 72b are provided with auxiliary protection. In addition to being reliably pressed against the back of the person, the distance between the second holding portions 72a and 72b is reduced, so that the first holding portions 71a and 71b are reliably pressed against the armpit of the assistant guardian. . Thereby, the retention strength with respect to a to-be-supported person can be improved reliably.

  In particular, a tilt mechanism 50 that tilts the arm 30 relative to the base 20 and a telescopic mechanism 60 that expands and contracts the arm 30 are provided as a displacement mechanism that moves the breastplate 40 relative to the base 20. For this reason, due to the extension of the arm 30 by the telescopic mechanism 60 and the tilt of the arm 30 by the tilting mechanism 50 as the trajectory of the breast pad 40, the trajectory is complicated not only as a monotonous trajectory as a linear trajectory but also as a curvilinear trajectory. Trajectories can also be realized. Thereby, the expansion / contraction mechanism 60 and the tilting mechanism 50 are controlled so that the trajectory of the breast pad 40 comes close to the trajectory of the movement of the assisting person to naturally stand up, thereby reducing the burden on the body of the assisting person at the time of assisting the start-up. However, the holding force with respect to the person being assisted can be improved.

FIG. 10 is a side view illustrating a main part of the rising assist device 10 according to the first modification of the first embodiment. FIG. 11 is a side view illustrating a main part of the rising assist device 10 according to the second modification of the first embodiment.
The tilting shaft 74a and the tilting shaft 74b are not limited to be provided so as to be substantially parallel to the tilting shaft 73a and the tilting shaft 73b, but are provided so as to be tilted with respect to the tilting shaft 73a and the tilting shaft 73b. Also good. For example, the tilt shaft 74a and the tilt shaft 74b are tilted so as to hold the back closer to the head with the second holding portions 72a and 72b, as in the first modification illustrated in FIG. It can be provided so as to be inclined with respect to the shaft 73b. Thereby, it is possible to adopt a holding structure that places importance on holding the back close to the head. In addition, for example, the tilting shaft 74a and the tilting shaft 74b are configured so that the tilting shaft 73a and the tilting shaft 74b hold the back closer to the waist by the second holding portions 72a and 72b, as in the second modification illustrated in FIG. It can be provided so as to be inclined with respect to the tilting shaft 73b. Thereby, it is possible to adopt a holding structure that places importance on holding the back near the waist. In order to further enhance the above-described effects, the tilting shaft 73 a and the tilting shaft 73 b may be provided so as to be tilted with respect to the breast pad surface 41.

[Second Embodiment]
Next, a stand-up assisting device according to a second embodiment of the present invention will be described with reference to FIG. FIG. 12 is an explanatory diagram illustrating a main part of the rising assist device 10 according to the second embodiment.
The second embodiment is mainly different from the first embodiment in that a mechanism capable of restricting tilting is used for each joint portion of the pair of holding members 70. For this reason, substantially the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the present embodiment, a known ratchet mechanism is adopted for the joint portions (tilting shafts 73a, 73b, 74a, 74b portions) of the pair of holding members 70, and the connecting belt 75 is eliminated. As shown in FIG. 12, each joint portion is provided with unlocking wires 76a, 76b, 77a, 77b, and each wire 76a, 76b, 77a is operated by an operating portion 43 provided on the front surface 42 of the breast pad 40. , 77b is controlled.

  More specifically, in the ratchet mechanism of the tilting shaft 73a portion, in a normal state, the first holding portion 71a can be tilted inward with the tilting shaft 73a as the center, and the tilting outward is restricted, and the wire 76a is When pulled according to the operation of the operation unit 43, the lock is released and the first holding unit 71a can be tilted outward. In the normal state, the ratchet mechanism of the tilting shaft 74a portion is configured such that the second holding portion 72a can tilt inwardly with respect to the tilting shaft 74a and the tilting outward is restricted, and the wire 77a is used for the operation of the operation unit 43. When pulled accordingly, the lock is released and the second holding portion 72a can tilt outward. In the normal state, the ratchet mechanism of the tilting shaft 73b portion is such that the first holding portion 71b can be tilted inward with respect to the tilting shaft 73b and the tilting to the outside is restricted, and the wire 76b can be operated by the operation portion 43. When pulled accordingly, the lock is released and the first holding portion 71b can tilt outward. In the normal state, the ratchet mechanism of the tilting shaft 74b is configured such that the second holding portion 72b can be tilted inward about the tilting shaft 74b and the tilting outward is restricted, and the wire 77b is used for the operation of the operation unit 43. When pulled accordingly, the lock is released and the second holding portion 72b can tilt outward.

  With such a configuration, the first holding portions 71a and 71b are tilted inward until they are located under the assistive guardian, and the second holding portions 72a and 72b are tilted inward until they contact the back of the assistant guardian. By doing so, you can hold the assistant guardian. In this holding state, since the tilting of the holding portions 71a, 71b, 72a, 72b to the outside is restricted, the holding power of the assistant guardian by the pair of holding members 70 is maintained. When the assisting person's start-up assistance is completed, by operating the operation unit 43, the restriction of tilting outward of the holding units 71a, 71b, 72a, 72b is released.

  As described above, in the rising assist device 10 according to the present embodiment, by employing a ratchet mechanism for each joint portion of the pair of holding members 70, a connecting member such as the connecting belt 75 is not used. The armpit and back of the assistant can be securely held. Note that the mechanism employed for each joint portion of the pair of holding members 70 is not limited to a known ratchet mechanism, and other mechanisms capable of restricting tilting may also be employed. Can be securely held.

In addition, this invention is not limited to said each embodiment and modification, You may actualize as follows.
(1) The pair of holding members 70 are not limited to being connected to the breast pad 40 but may be connected to the breast pad side of the arm 30.

(2) The displacement mechanism 50 is not limited to adopting the tilting mechanism 50 and the expansion / contraction mechanism 60 as a displacement mechanism for moving the breast pad 40 relative to the base 20 by displacing the arm 30. In addition, only a mechanism for simply expanding and contracting the arm 30 may be employed, or a displacement mechanism having another configuration such as a mechanism for rotating the arm 30 may be employed.

(3) The tilting mechanism 50 is not limited to be configured to tilt the arm 30 with respect to the base 20 by the tilting motor 51 with a speed reducer, as described above. May be configured to tilt relative to the base 20.

(4) The expansion / contraction mechanism 60 is not limited to being configured to expand / contract the arm 30 by rotating the screw screw 35 as described above, and the arm configured to be expandable / contractable using another actuator or the like. It may be configured to expand and contract.

DESCRIPTION OF SYMBOLS 10 ... Standing assistance apparatus 20 ... Base 30 ... Arm 40 ... Chest rest 50 ... Tilt mechanism (displacement mechanism)
60 ... telescopic mechanism (displacement mechanism)
70, 70a, 70b ... holding member 71a, 71b ... first holding part 72a, 72b ... second holding part 75 ... connecting belt (connecting member)

Claims (3)

A start-up assisting device that assists the supportee in starting up,
Base and
A breastplate for supporting the chest of the assistant guardian;
An arm connecting the base and the breastplate;
A displacement mechanism for moving the breastplate relative to the base by displacing the arm;
A pair of holding members for holding and holding the auxiliary guard supported by the breastplate,
The holding member is
A first holding part connected to the breast pad or the breast pad side of the arm so as to be tiltable to hold the armpit of the guardian;
And a second holding part that is connected to the first holding part so as to be tiltable and holds the back of the assistant guardian.   The rising assist device according to claim 1, further comprising a connecting member capable of adjusting a distance between one of the pair of holding members and the other second holding portion. The displacement mechanism is
A tilt mechanism for tilting the arm with respect to the base;
The start-up assisting device according to claim 1, further comprising an expansion / contraction mechanism that expands / contracts the arm.

Images