JP2009226152A - Stand-up movement assisting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To assist a stand-up movement by assisting forces of a hoisting force by a motor and an elastic force of a coil spring. <P>SOLUTION: This stand-up movement assisting device is provided with a frame body, a rotational arm member 5, a hoist motor 7, the coil spring 8, and a hoisting length regulation body 16. The assisting forces of the hoisting force by the hoist motor 7 and the elastic force of the coil spring are changed over according to whether a care-receiver takes a first stand-up movement from a seating posture to a half-sitting posture, or a second stand-up movement from the half-sitting position to a stand-up posture. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is provided when, for example, an elderly person who has weak muscles in his / her legs, a disabled person or a care recipient such as a rehabilitation patient, when standing up from a sitting position on a bed or the like to a rising position. The present invention relates to a start-up motion intermediary device that performs the above.

  The standing up motion from the sitting posture to the standing posture requires not only the legs but also the muscle strength or balance ability of the whole body, and it is an operation that does not cause much pain for the healthy person, but it is an operation that is extremely burdensome for the care recipient. is there. In the nursing care field, the rising action is an action that frequently occurs, for example, for changing from bed to wheelchair or changing clothes, and if the cared person can take a standing posture relatively easily, The burden is greatly reduced. However, in the cared person, the rising action is gradually not performed due to the weakness of the physical strength and the carelessness of the caregiver as the physical strength is lowered, which is a major factor for progressing to a so-called bedridden state.

  For example, the rising motion from the bed is a series of motions that move to the edge and move the center of gravity to the front of the body while moving the center of gravity while moving the center of the foot toward the center of the body. Done. In the stand-up operation, the support area is small when standing up from a seated state, and a large muscular strength is required to stand up, so that accidents in which the care recipient loses balance and falls are frequent. In the stand-up operation, as described above, in order to stand up including the operation in which the cared person bows, it is necessary to perform the attending operation in which the carer supports at a position where the operation is not hindered and is lifted obliquely forward. In order to assist in the standing up movement, it is necessary to adapt to each care recipient together with the care and care required for the caregiver.

  Conventionally, various devices have been proposed as care devices for raising a care receiver. For example, Patent Document 1 supports both arms of a care receiver by a support member and drives each support member by a motor. A care device for raising a care recipient is described. Further, Patent Document 2 describes a care device that raises and lowers a foldable seat for sitting a care receiver, although it is not a care device that raises the care receiver.

JP 2006-51190 A JP 2006-109937 A

  In nursing care, it is necessary for the caregiver to have a strong will not to be bedridden, and to respect the will and support the caregiver's actions by the caregiver while maintaining independence and energy. is there. However, such care takes time and effort and requires a sufficient amount of mind, increasing the burden on busy caregivers.

  Conventional care devices are manufactured for the purpose of reducing the burden on the caregiver who wakes up or stands the caregiver, assuming that the caregiver is in a state where his body can hardly move freely. Even if the care recipient can move the body within a certain range, in order to prevent the occurrence of a situation where the balance is lost during the operation and falls, for example, from the sitting posture to the standing posture A series of actions are provided on behalf of the caregiver. It is no exaggeration to say that conventional care devices are devices that handle the caregivers who are special and troublesome reasonably and accurately, and they promote the maintenance of self-reliance and recovery of muscle strength for the caregivers. It did not have a function to play.

  Specifically, the rising operation is performed from the sitting posture to the rising posture by the above-described series of operations. In particular, the first rising operation from the sitting posture to the middle waist posture and the second rising from the middle waist posture to the rising posture are performed. It is roughly divided into operation. The rising motion is an operation in which the first rising motion moves the hips, knees, or ankle joints while the body is tilted slightly forward, and the lower limbs, etc. compared to the second rising motion performed in a substantially vertical posture. Requires great muscle strength. In the conventional care device, the rising motion is regarded as a series of motions, and the care recipient is raised by substantially the same driving force (assisting force). Conventional care devices are relatively large and robust and expensive.

  Therefore, according to the present invention, a necessary care force is applied at a necessary timing to assist the care recipient in order to encourage the care recipient to maintain their independence and energy and recover their muscular strength. It is another object of the present invention to provide a start-up motion attendant device that is easy to handle, has a simple structure, and is inexpensive to reduce the burden on the caregiver.

  A rising motion intermediary device according to the present invention that achieves the above-described object includes a frame frame, a pair of left and right rotating arm members, a winder, a coil spring, and a winding length defining mechanism. When standing up from a sitting posture on a bed or the like to a standing posture, the hoisting force by the hoisting device according to the first rising motion from the sitting posture to the middle waist posture and the second rising motion from the middle waist posture to the standing posture And an intermediary force due to the elastic force of the coil spring to perform effective intermediation.

  In the rising motion support device, the rotating arm member is cantilevered by a hinge mechanism having a base end portion provided on a frame body, and a supporting member for supporting a care recipient is provided at the free end portion. It is done. In the rising motion intermediary device, the winder is attached to the frame frame body, and the first connecting body is fed or wound up. In the rising motion assisting device, the coil spring is connected to the first connecting body on one end side and connected to the rotating arm member on the other end side via the second connecting body, and is wound by a winder. The elastic force is stored by performing a pulling operation through the first connected body. The rising motion support device has a winding length defining mechanism having a predetermined length longer than the natural length of the coil spring whose one end is connected to the first connecting body and the other end is fixed to the frame frame. And defines the winding height position of the first connector.

  In the standing motion assistance device, the care receiver who sits on the edge of the bed with his toes attached to the floor is accompanied by the standing motion from the sitting posture to the standing posture. In the rising motion support device, the care receiver is supported by a support member provided at the free end of the rotating arm member, for example, by being sandwiched between the armpits of the care receiver. In the start-up operation intermediary device, the winding operation of the first connecting body is performed by starting the winder, and the rotating arm member is rotated through the coil spring and the second connecting body. In the rising motion assistance device, the cared person supported by the support member is accompanied by the hoisting force of the hoisting device in the first rising motion from the sitting posture to the middle waist posture that requires greater muscle strength.

  In the start-up motion intermediary device, the coil spring is pulled according to the winding operation of the first coupling body, and the elastic force is gradually stored in the coil spring. In the start-up motion intermediary device, the winding length regulating body is also wound up in accordance with the winding operation of the first connected body. For example, when the cared person rises from the sitting posture to the middle waist posture, the winding up to the full length is performed. Then, the winding operation of the first connected body by the winder is stopped.

  In the start-up motion intermediary device, the coil spring fixed to the connecting portion with the first connecting body by the winding length defining mechanism returns to the natural length while releasing the accumulated elastic force, thereby Continue pulling up. In the standing motion assistance device, the pivoting motion of the pivot arm member is continued through the second connecting body, and the second standing motion from the middle waist posture to the standing posture of the care recipient is accompanied. In the stand-up action assisting device, the care receiver performs the help by the elastic force of the coil spring in the second stand-up action in which the cared person can stand up even with a small muscle strength.

  According to the rising motion assisting apparatus according to the present invention, in the first rising motion from the sitting posture to the middle waist posture that requires a large muscular strength, the care recipient is accompanied by the winding force of the hoisting device, and somewhat. In the second rising operation from the middle waist posture to the rising posture, which is possible even with a small muscular force, intervention by the elastic force of the coil spring is performed. According to the rising motion support device, a necessary rising force is applied to the care recipient at a required timing, thereby reducing the burden on the caregiver and performing a safe rising motion. According to the rising motion intermediary device, the cared person is encouraged to continue to have the energy to get up by requiring his own rising power to some extent during the first rising motion and the second rising motion, and the muscle strength Allow for recovery. According to the start-up motion assisting device, the assisting force described above is switched to reduce the size and power consumption, and the caregiver is easy to handle and inexpensive.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a rising motion support device (hereinafter abbreviated as a support device) 1 shown in the drawings as an embodiment of the present invention will be described in detail. As will be described in detail later, the attending apparatus 1 assists a rising operation from a sitting posture where the care receiver 2 sits on the edge of the bed 3 to a rising posture. As shown in FIGS. 1 and 2, the intermediary device 1 includes a frame body 4 and a pair of left and right turning arm members 5A and 5B supported on the frame body 4 so as to be rotatable (hereinafter, individually described). And a pair of left and right support members 6 </ b> A and 6 </ b> B (hereinafter individually described) that are provided on the free end side of each of the rotary arm members 5 and support the care receiver 2. Except for the case where it does, it is named the supporting member 6 collectively.).

  The assistance device 1 includes a winding motor 7 having a pulley 7A as an output source of assistance force for assisting the rising operation of the care receiver 2 whose details will be described later, and a plurality of winding force motors that store elastic force with the rising operation. A coil spring 8 is provided. In the assistance device 1, the winding motor 7 causes the winding force 7 to act on the rotating arm member 5 as an assistance force when the care receiver 2 performs the first rising operation from the sitting posture to the middle waist posture, and the coil spring 8. The elastic force is stored by performing a pulling motion of In the intermediary device 1, the coil spring 8 gradually accumulates elastic force during the first rising operation, and the cared person 2 performs the second rising operation from the middle waist posture to the rising posture with the hoisting motor 7 stopped. At this time, the rotating arm member 5 is applied as an intermediary force.

  In the intermediary device 1, the winding motor 7 drives the pulley 7 </ b> A to rotate and is engaged with a movable pulley 9 </ b> A provided on the first connection bracket member 9, so that the first connection body (connection wire) 10 is fixed. Or it winds up. The attendant device 1 can reduce the torque by winding the connecting wire 10 via the movable pulley 9A. The intermediary device 1 fixes the one end (first end) 8 </ b> A side of the coil spring 8 to the first connecting bracket member 9 and connects the coil spring 8 and the winding motor 7 via the connecting wire 10. The intermediary device 1 connects the length adjustment belts 12 to the other end (second end) 8B side of the coil spring 8, and fixes the other end of the length adjustment belt 12 to the second connection bracket member 13. Thus, the elastic force adjusting mechanism 11 is configured.

  The intermediary device 1 connects one end side of a connection belt 14 </ b> A constituting a second connection body 14, which will be described in detail later, to the second connection bracket member 13 of the elastic force adjusting mechanism 11, and the other end side of the connection belt 14 </ b> A Connect to the horizontally long connecting plate 34. The connection plate 34 fixes the connection belt 14A at the center, and is connected to the connection wires 14BA and 14BB (hereinafter referred to as connection wires 14B unless otherwise described). )) Is fixed respectively. One end 14BA of the connecting wire 14B is hooked to the second guide pulley 18A and the other end side is connected to the support member 6A, and the other end 14BB is hooked to the second guide pulley 18B and the other end side is supported to the support member 6B. Concatenated with Accordingly, the second connecting body 14 connects the winding motor 7, the rotating arm member 5, and the support member 6 via the elastic force adjusting mechanism 11.

  The intermediary device 1 includes a winding length defining mechanism 15 that defines a winding amount of the connecting wire 10, which will be described in detail later, that is, a pulling amount of the coil spring 8. The intermediary device 1 includes a winding length defining mechanism 15 (winding length defining belt) 16 having a winding length defining mechanism 15 having a predetermined length longer than the coupling body of the natural length of the coil spring 8 and the length adjusting belt 12. One end side of the regulation belt 16 is fixed to the first connection bracket member 9 and the other end side is fixed to the frame frame body 4.

  The intervention device 1 has a first guide pulley 17 in which a winding motor 7 is attached to the ceiling frame frame portion 22 of the frame frame body 4 and a connection belt 14A of the second connection body 14 is attached to the bottom frame frame portion 25 as described later. The support member 6 integral with the rotating arm member 5 by being hooked on the pair of left and right second guide pulleys 18A and 18B (second guide pulley 18) having the connecting wire 14B attached to the ceiling frame frame portion 22. Connect to In the intermediary device 1, for example, the first guide pulley 17 is provided with a one-way feeder (clutch, brake) 19 that allows the second connector 14 to be fed only to the hoisting motor 7 side during the hoisting operation. As will be described later, the attending apparatus 1 manually switches the clutch 19 so that the connecting wire 10 and the second connecting body 14 pulled up by the winding motor 7 are pulled out.

  The intermediary device 1 includes the winding motor 7, the coil spring 8, the first connecting bracket member 9, the connecting wire 10, the length adjusting belt 12, the second connecting bracket member 13, the second connecting body 14, and the winding length defining mechanism 15. The rotating arm member drive system 20 shown in FIG. In the intermediary device 1, the rotating arm member drive system 20 has the winding force of the winding motor 7 and the elastic force of the coil spring 8 in the first rising operation and the second rising operation with respect to the care receiver 2 as described above. So that the intermediary force is applied.

  In the intermediary device 1, the frame frame 4 is made of a pipe material made of aluminum, a synthetic resin material, or the like that is lightweight and has high mechanical strength as shown in FIGS. 1 and 2. It is configured to be combined in a vertically long rectangular frame shape using a connecting tool 21 such as a corner joint. The frame frame body 4 constitutes a frame body from the ceiling frame frame portion 22, the rear frame frame portion 23, the front frame frame portion 24, the bottom frame frame portion 25, and the left and right side frame frame portions 26A and 26B. At the same time, the left and right support legs 27A and 27B are projected from the side frame frame 26 in front of the bottom frame frame 25.

  Since the frame frame 4 has a structure in which a large number of pipe members are combined using the coupler 21, it is lightweight and has high mechanical strength, and can be easily assembled and disassembled. By changing the connecting tool 21 and its mounting position, the size can be changed and each member can be mounted at an appropriate position. The frame frame body 4 is used as a walker when the care receiver 2 stands up and walks while supporting the care receiver 2 from a sitting posture to a standing posture. . Therefore, the frame frame body 4 has an overall height of about 120 cm so that the support member 6 is at a height position corresponding to the armpit in the upright state, and is a width that enables traveling indoor doors and passages. Is about 60 cm. Note that the frame frame body 4 can be adjusted in height and width dimensions by loosening each connecting tool 21 and is not limited to the configuration of each part described above.

  As shown in FIGS. 1 and 2, the frame frame body 4 includes a first ceiling beam pipe member 28 </ b> A and a second ceiling beam pipe that are spaced apart in the front-rear direction between the left and right horizontal pipe members constituting the ceiling frame frame portion 22. The material 28B is bridged. The hoisting motor 7 is attached to the first ceiling beam pipe member 28A via the attachment bracket member 7B, and the second guide pulley is separated from the second ceiling beam pipe member 28B in the left-right direction. 18 is attached. One end of the connecting wire 10 that is hooked on the moving pulley 9A is fixed to the rear pipe member on the ceiling frame frame portion 22.

  As shown in FIGS. 1 and 2, the frame frame body 4 has an upper back beam pipe material 29 </ b> A and a lower back beam pipe material 29 </ b> B that are spaced apart in the vertical direction between the left and right vertical pipe members constituting the back frame frame portion 23. (Hereinafter collectively referred to as the back beam pipe material 29, unless otherwise described). A hinge fitting 30 is assembled to the back beam pipe member 29 on the back frame frame portion 23, and the base end side of the turning arm member 5 is rotatably supported via the hinge fitting 30 as will be described later.

  As shown in FIGS. 1 and 2, the frame frame body 4 has a clutch 19 fixed to the rear beam pipe material constituting the bottom frame frame portion 25 and one end side of the winding length defining belt 16 of the winding length defining mechanism 15. Fixed. In the bottom frame frame portion 25, casters 31 are respectively attached to the connecting tools 21 of the left and right rear corner portions, and stopper fittings 32 are provided on the connecting tools 21 of the left and right front corner portions.

  As described above, the bottom frame frame portion 25 has the support legs 27 integrally protruded, and the casters 33 are attached to the front ends thereof. The frame frame 4 can be moved by supporting the stopper fitting 32 in a state of being slightly lifted by the front and rear casters 31 and 33, and when a load is applied, the built-in spring is compressed and the stopper fitting 32 is grounded. By doing so, it is possible to stop at the position.

  As shown in FIGS. 1 and 2, the rotating arm member 5 is bilaterally symmetric and includes two arms, upper arms 5AA and 5BA and lower arms 5AB and 5BB. As shown in FIG. 4, the rotating arm member 5 is cantilevered on the rear beam pipe material 29 by fixing the base end portion of each arm to the hinge fitting 30. The rotating arm member 5 has a distal end facing the support leg 27 and projecting forward from the front frame portion 24 to a predetermined length, and the support member 6 is attached integrally. The rotating arm member 5 is rotated by the above-described rotating arm member drive system 20 with the hinge bracket 30 as a fulcrum, and the support member 6 is moved along an arcuate locus so that the care receiver 2 rises. To serve.

  In addition, although each rotation arm member 5 was comprised by two arms, of course, it is not limited to this shape. The rotating arm member 5 may adopt a slide structure with a stopper mechanism that expands and contracts in the front-rear direction in consideration of, for example, compactness when not in use and the distance between the care receiver 2 and the attending apparatus 1.

  The rotating arm member 5 is supported with respect to the rear frame frame portion 23 via a height adjustment mechanism, and the support member 6 is positioned at the height positions on both sides of the cared person via this height adjustment mechanism. Adjust the fixing position to. In the height adjusting mechanism, for example, a connecting tool 21 for attaching the rear beam pipe material 29 is slidably combined in the height direction with respect to the left and right vertical frame members of the frame body 4, and the connecting tool 21 is tightened with a fixing screw. To set a predetermined height position. The height adjustment mechanism is not limited to such a structure, and may be an appropriate structure such as a mechanism for adjusting the height position of the hinge fitting 30 with respect to the back beam pipe material 29 having a fixed height position. .

  The support member 6 is fixed to the front ends of the two arms, that is, the upper arm 5AA and the lower arm 5AB of the rotating arm member 5 and the upper arm 5BA and the lower arm 5BB. Provided at the height position. The support member 6 is provided at a height position opposite to the armpit of the cared person 2 sitting on the edge of the bed 3 in the initial state, and is sandwiched between the armpit of the cared person 2 in a slightly tilted posture as shown in FIG. It is. Since the support member 6 is sandwiched between the armpits of the cared person 2 as described above, pads 6AA and 6BB are attached to the upper end portions, respectively.

  One end of the second connecting body 14 is fixed to the support member 6, and the winding motor 7 is driven as will be described later, and the rotating arm member drive system 20 rotates the rotating arm member 5 around the hinge bracket 30. By moving, it moves upward along an arcuate locus in front of the frame 4. The support member 6 performs a natural rising operation in which the care receiver 2 stands up in a slightly tilted posture by this arc-shaped operation.

  The hoisting motor 7 is attached to the ceiling frame frame portion 22 by a mounting bracket member 7B, and the connecting wire 10 is hung on a pulley 7A that constitutes a driving source of the above-described rotating arm member driving system 20 and is fixed to an output shaft. The feeding or winding operation is performed. The hoisting motor 7 uses a rechargeable secondary battery as a power source, although details are omitted, but a commercial power source can also be used, and rotates the pulley 7A forward and backward. Although the details are omitted, the hoisting motor 7 incorporates an appropriate torque limiter, and automatically stops rotating when a load of a predetermined value or more is applied to the output shaft via the pulley 7A.

  When the winding motor 7 is driven and operated with the clutch 19 engaged, the pulley 7A is rotated to wind the connecting wire 10 and the rotating arm member 5 is rotated via the rotating arm member drive system 20. Rotate. When the hoisting motor 7 is driven in the reverse direction with the clutch 19 disengaged, the rotating arm member 5 is returned to the initial position by feeding out the connecting wire 10 that has been wound up by reversely rotating the pulley 7A. So that The hoisting motor 7 can be freely rotated with the power off, for example, and the rotating arm member 5 is pulled out by pulling out the connecting wire 10 taken up from the pulley 7A with the clutch 19 disengaged. The return operation may be performed.

  Needless to say, the intermediary device 1 is not limited to the hoisting motor 7 described above as a drive source, and hoists such as hoists used in various hoisting devices are also used. In the intermediary device 1, the pulley 7 </ b> A is provided on the rotating shaft to wind up the connecting wire 10, but a winding motor 7 with a gear box may be used. For example, in the case where the attending apparatus 1 has a structure in which a hoisting force is directly applied in order to raise the cared person 2, the upper limit value is approximately 80 kg to 100 kg (in general, the cared person 2's own power is also applied). Therefore, a hoisting motor 7 having a specification that outputs a torque of 30 kg to 60 kg is used. For example, a plurality of moving pulleys are used in the rotating arm member drive system 20 to reduce the hoisting motor 7. Torque can be achieved.

  In the assistance device 1, the take-up operation of the connecting wire 10 is performed by the winding motor 7, and the care receiver 2 performs the first rising operation of rising from the sitting posture to the middle waist posture, and the first rising operation. During this period, the coil spring 8 is adjusted so that the elastic force stored by the elastic force adjusting mechanism 11 is adjusted. In the intermediary device 1, the pulling operation of the coil spring 8 by the winding motor 7 is performed within the range of the lifting height of the first connecting bracket member 9 defined by the winding length defining mechanism 15.

  In the attendant device 1, the care receiver 2 performs the second rising operation in which the care receiver 2 rises from the middle waist posture to the standing posture by the elastic force accumulated in the coil spring 8. In the care device 1, for example, in a state where the cared person 2 is recovering a certain amount of muscular strength by rehabilitation, etc., it is encouraged to perform a stand-up operation as much as possible to maintain self-reliance and energy. The muscle training function is also played. Therefore, in the attendant apparatus 1, it is possible to adjust the elastic force stored in the coil spring 8 that accompanies the rising operation of the care receiver 2.

  In the intermediary device 1, a plurality of coil springs 8 are provided to obtain a predetermined elastic force, and the elastic force stored by the elastic force adjusting mechanism 11 shown in FIG. 5 is adjusted. As described above, the elastic force adjusting mechanism 11 is constructed by bridging a plurality of connecting bodies in which the coil spring 8 and the length adjusting belt 12 are connected between the first connecting bracket member 9 and the second connecting bracket member 13. To do.

  The elastic force adjusting mechanism 11 is provided with a moving pulley 9A in which a connection wire 10 is hung on a first connection bracket member 9, and one end side of a connection belt 14A constituting a second connection body 14 on a second connection bracket member 13. To fix. As described above, the elastic force adjusting mechanism 11 has the first end 8A of each coil spring 8 fixed to the first connecting bracket member 9, and the second end 8B fixed to the opposing length adjusting belt 12. The

  The other end side of the length adjusting belt 12 is fixed to the second connecting bracket member 13, and a buckle 12A is provided in the middle. The length adjusting belt 12 loosens the buckle 12A and tightens the buckle 12A again in a state where the length is appropriately adjusted, so that the coil spring 8 and the first connecting bracket member 9 and the second connecting bracket member 13 are Adjust the overall length. The length adjustment belt 12 is not limited to the configuration having the buckle 12A, and may be any belt having an appropriate structure capable of adjusting the length and fixing the adjusted state.

  In the elastic force adjusting mechanism 11 described above, the coil spring 8 is pulled by pulling up the first connecting bracket member 9 side via the connecting wire 10 by the winding motor 7. In the elastic force adjusting mechanism 11, as the first connecting bracket member 9 is pulled beyond the length of the connecting body of the coil spring 8 and the length adjusting belt 12, the coil spring 8 is pulled and gradually stores the elastic force. To do. In the elastic force adjusting mechanism 11, the coil spring 8 is pulled in the range of the difference between the length of the coupling body of the coil spring 8 and the length adjusting belt 12 and the length defined by the winding length defining mechanism 15 described later. Accumulate elastic force.

  In the elastic force adjusting mechanism 11, the amount of tension of the coil spring 8 is reduced by increasing the length adjusting belt 12 and is increased by shortening the length adjusting belt 12. Therefore, in the elastic force adjusting mechanism 11, the length of the length adjusting belt 12 is adjusted according to the state of the cared person 2, and the magnitude of the elastic force stored in the coil spring 8, which is an auxiliary force, is appropriately set. To do.

  In the assistance device 1, as described above, the first raising operation of the care receiver 2 is performed by performing the rotation operation of the rotation arm member 5 and the pulling operation of the coil spring 8 by the winding force of the winding motor 7. At this time, the range of action of the hoisting force by the hoisting motor 7, that is, the amount of rotation of the rotating arm member 5 and the amount of tension of the coil spring 8 are defined by the hoisting length defining mechanism 15. The winding length defining mechanism 15 has a winding length defining belt 16 having a length longer than the coupling body of the coil spring 8 and the length adjusting belt 12, and as described above, one end side of the winding length defining belt 16 Is fixed to the first connection bracket member 9 and the other end is fixed to the bottom frame frame portion 25 of the frame frame body 4.

  The winding length defining mechanism 15 is provided with a buckle 16A in the middle of the winding length regulating belt 16, and is adjusted to a predetermined length by tightening the buckle 16A again after loosening the buckle 16A and adjusting the length appropriately. To do. In the winding length defining mechanism 15, the winding length defining belt 16 is longer than the coupling body of the coil spring 8 and the length adjustment belt 12 and the cared person 2 stands up to a position where the care receiver 2 exceeds the middle waist posture. It is set to the length as the amount of motion to be performed.

  In the winding length defining mechanism 15, when the connecting wire 10 is wound up by the winding motor 7, the winding length defining belt 16 is gradually pulled up via the first connecting bracket member 9. In the winding length defining mechanism 15, when the winding length defining belt 16 is pulled up to its full length, the lifting operation of the first connecting bracket member 9 is stopped, thereby automatically stopping the winding motor 7 in an overload state. In the winding length defining mechanism 15, the first coupling bracket member 9 is stopped at a position higher than the length of the coupling body of the coil spring 8 and the length adjustment belt 12, so that the elastic force is applied to the coil spring 8 as described above. Be accumulating.

  Needless to say, the winding length defining mechanism 15 is not limited to the configuration of the winding length defining belt 16 having the buckle 16A described above. The winding length defining mechanism 15 only needs to have an appropriate structure in which the winding operation of the connecting wire 10 by the winding motor 7 is stopped at a predetermined position and the position can be adjusted.

  As described above, the intermediary device 1 rotates the rotating arm member 5 upward by performing a winding operation using the winding motor 7 as a drive source via the rotating arm member drive system 20, so that the care recipient 2 Accompanied by rising operation. In the intermediary device 1, a clutch 19 is provided in the rotating arm member drive system 20, and the connecting belt 14 </ b> A constituting the second connecting body 14 is moved in the winding direction by setting the clutch 19 in the winding operation. Thus, the reverse rotation operation of the rotary arm member 5 is prevented.

  As shown in FIG. 6, the clutch 19 is attached to the bottom beam pipe member 35 constituting the bottom frame frame portion 25 with an attachment bracket member 36 that supports the first guide pulley 17 as an attachment member. The bottom beam pipe member 35 is fixed with a lower end portion of a winding length defining belt 16 in which the upper end portion of the above-described winding length defining mechanism 15 is fixed to the first connecting bracket member 9. Although not described in detail, the clutch 19 is provided with a guide hole 19A through which the winding length defining belt 16 is inserted and a cam 19B in which ratchet teeth are formed facing the guide hole 19A. The

  The clutch 19 turns the ratchet teeth into and out of the guide hole 19A by rotating the cam 19B with the handle 19C. When the clutch 19 is set in a state in which the ratchet teeth of the cam 19B protrude into the guide hole 19A, the ratchet teeth move away when the winding length defining belt 16 moves in the arrow direction in FIG. Is possible. Further, the clutch 19 prevents the ratchet teeth from biting and moving when the winding length regulating belt 16 is pulled and moved in the counter arrow direction.

  The clutch 19 allows the winding length regulating belt 16 to move freely when the handle 19C is rotated to set the ratchet teeth of the cam 19B to retract from the guide hole 19A. As described above, the clutch 19 applies the pulling force to the connecting wire 10 wound around the pulley 7A when the hoisting motor 7 is stopped, and pulls the hoisting length regulating belt 16 to bring the rotating arm member 5 to the initial position. It is possible to perform a return operation. The clutch 19 stops the wound-up length regulating belt 16 even when an excessive load is applied for some reason while the winding-up operation is being performed in the rotating arm member drive system 20, thereby turning the rotating arm member 5. The occurrence of an accident in which the cared person 2 falls by rotating downward is prevented.

  Needless to say, the attending apparatus 1 is not limited to the clutch 19 described above, and various one-way feeders that move the winding length regulating belt 16 in only one direction may be used. Further, although the intervention device 1 is configured to regulate the moving direction of the winding length defining belt 16 by the clutch 19, it may be provided so as to regulate, for example, the connecting wire 10 constituting the rotating arm member drive system 20. Depending on the routing of the connecting wire 10 and the winding length regulating belt 16, the frame frame 4 may be provided at an appropriate position. When the connecting wire 14B is restricted, two interfacing devices 1 are required. When the connecting wire 10 is restricted, the connecting portion of the constituent members may drop off, and the coil spring 8 may expand and contract. Therefore, it is preferable to provide the connecting belt 14A as described above.

  With regard to the attending apparatus 1 configured as described above, the attending operation for the rising operation of the care receiver 2 will be described with reference to FIGS. 7 to 9. The attendant apparatus 1 is configured so that a caregiver can perform a predetermined operation. For example, if the care recipient 2 is able to act relatively freely like a rehabilitation person, the caregiver 2 can perform the operation on his own. It is also possible to do this.

  In the intermediary device 1, the support position of the rotating arm member 5 is adjusted by the height adjustment mechanism with respect to the rear frame frame portion 23, and the support member 6 is at the height of both sides of the care recipient as shown in FIG. 7. The position is adjusted to be H0. In the intermediary device 1, the length adjustment belt 12 of the elastic force adjustment mechanism 11 and the winding length regulation belt 16 of the winding length regulation mechanism 15 are the amount of winding of the connecting wire 10 necessary for the first rising operation of the care receiver 2 ( The respective lengths are adjusted so as to be the winding height).

  As shown in FIG. 2, the support device 6 is inserted into both sides of the care receiver 2 who sits on the edge of the bed 3 with his feet attached to the floor as shown in FIG. 2. The support member 6 is firmly held in a forward tilted posture. In the intermediary device 1, in this state, as shown in FIG. 7, the connecting wire 10 is pulled out from the pulley 7 </ b> A of the winding motor 7, the coil spring 8 is in a natural length state, and the winding length defining belt 16 is greatly bent. It is in a state of being stuck.

  In the attendant apparatus 1, the start-up operation of the winding motor 7 is performed while the caregiver makes an encouraging voice prompting the person to be cared 2 to start up in this state. In the assistance device 1, when the hoisting motor 7 is activated, the rotating arm member 5 starts the rotating operation via the rotating arm member driving system 20, and the first rising operation of the care receiver 2 rising from the sitting posture is performed. To help. In the intermediary device 1, as shown by the arrow in FIG. 8, the winding motor 7 winds the connection wire 10, whereby the coil spring 8 that constitutes the elastic force adjustment mechanism 11 via the movable pulley 9 </ b> A and the first connection bracket member 9. The connecting body of the length adjustment belt 12 is pulled up. In the intermediary device 1, the coil spring 8 is pulled from the natural length L0 at this time, and gradually accumulates elastic force.

  In the intermediary device 1, the second connecting bracket member 13 coupled to the elastic force adjusting mechanism 11 is pulled up, and the connecting belt 14 </ b> A and the connecting wire 14 </ b> B constituting the second connecting body 14 are connected to the first guide pulley 17 and the first guide pulley 17. The guide arm 18 is guided and wound up by the two-guide pulley 18 to rotate the rotating arm member 5. In the intermediary device 1, the winding length defining belt 16 of the winding length defining mechanism 15 that is bent through the first coupling bracket member 9 that is pulled up by the coupling wire 10 is also wound.

  In the care device 1, when the cared person 2 performs the first rising operation in which the care receiver 2 stands up from the sitting posture to the middle waist posture and the first connecting bracket member 9 is pulled up to a predetermined height position, as shown in FIG. The length of the regulation belt 16 becomes full, and the lifting operation of the first connecting bracket member 9 is stopped. In the intermediary device 1, the hoisting motor 7 is stopped by stopping the movable pulley 9 </ b> A at the pulling position via the first connecting bracket member 9. In the intermediary device 1, in this state, the support member 6 ascends from the H0 to the height of H1 via the rotating arm member 5 with an arc-shaped locus, and the care receiver 2 remains in a slightly inclined posture. So that you can stand up.

  In the assistance device 1, as described above, when the care receiver 2 stands up, the assistance is performed by the hoisting force of the hoisting motor 7 in the first rising operation from the sitting posture to the middle hip posture that requires greater muscle strength. In the intermediary device 1, the elastic force is gradually accumulated by pulling the coil spring 8 from the natural length L 0 to the length L 1 as shown in FIG. 8 at this time. In the intervention device 1, the care receiver 2 performs the second rising operation from the middle waist posture to the rising posture, which is possible even with a slightly small muscle force, with the elastic force accumulated in the coil spring 8.

  In the intermediary device 1, the length adjustment belt 12 is restored by returning from the pulled length Ll to the natural length L0 while releasing the elastic force accumulated by the coil spring 8 even after the winding motor 7 is stopped. The pulling-up operation of the second connector 14 is continued via In the intermediary device 1, as shown in FIG. 9, the rotating operation of the rotating arm member 5 is continued via the second connecting body 14 by the elastic force of the coil spring 8, and the care receiver 2 is in the standing posture from the middle waist posture. The second rising operation up to is accompanied. In the attending apparatus 1, when the coil spring 8 returns to the natural length L0, the support member 6 rises from the height position of H1 to the height position of H1, and the second care operation that can be performed with a slightly small muscle force is performed. Person 2 is assisted.

  In the assistance device 1, as described above, the care receiver 2 is assisted by the hoisting force of the hoisting motor 7 in the first rising operation from the sitting posture to the middle waist posture that requires a large muscle strength, and somewhat. In the second rising operation from the middle waist posture to the rising posture, which is possible even with a small muscular force, intervention by the elastic force of the coil spring 8 is performed. In the assistance device 1, the necessary care force is applied to the care recipient 2 at a necessary timing, so that the caregiver 2 and the caregiver's burden are reduced and a safe start-up operation is performed. . In the assistance device 1, the care recipient 2 is encouraged to continue to have the energy to stand up by requiring a certain amount of his or her own rising power during the first rising motion and the second rising motion, and the muscle strength Allow for recovery.

  In the care device 1, it is assumed that the care receiver 2 who performs the rising action with a certain degree of self-help is provided as described above. In the care apparatus 1, when the care receiver 2 is in a state where almost no force is applied due to, for example, heat generation, it is difficult to stand up the care receiver 2 with only the elastic force of the coil spring 8. Also occurs. In the case described above, the attendant device 40 shown in FIG. 10 and FIG. 11 as the second embodiment has the second rising after the first rising operation with respect to the care receiver 2 due to the winding force of the winding motor 7. We also provide movement assistance.

  Since the intermediary device 40 has the same basic configuration as that of the intermediary device 1 described above, the description thereof is omitted by assigning the same reference numerals to the corresponding members in the following description. The intermediary device 40 also includes a moving pulley 41 on which the connecting wire 10 wound up by the winding motor 7 is multiplied. The first connecting bracket member 9 or the second connecting bracket member 13 that forms the elastic force adjusting mechanism 11. It is set as the structure selected and attached with respect to.

  In the intermediary device 40, for example, the movable pulley 41 is rotatably supported by a bracket member 42 whose details are omitted, and the bracket member 42 is attached to a mounting portion provided on the first connection bracket member 9 or the second connection bracket member 13. And detachably assembled. The support device 40 has the same configuration as the above-described support device 1 by assembling the bracket member 42 to the first connecting bracket member 9, and is driven by the winding force of the winding motor 7 during the first rising operation with respect to the care recipient 2. Along with the rising operation, the rising operation is accompanied by the elastic force of the coil spring 8 during the second rising operation.

  The intermediary device 40 assembles the bracket member 42 to the second connecting bracket member 13 so that the care receiver 2 can intervene in the second rising operation subsequent to the first rising operation by the hoisting force of the hoisting motor 7. To be In the intermediary device 40, when the winding motor 7 is activated, the connecting wire 10 is wound up, and the connecting body of the coil spring 8 and the length adjusting belt 12 is pulled up via the movable pulley 41 and the first connecting bracket member 9 to rotate the arm. The member 5 is rotated.

  In the intermediary device 40, the winding length defining belt 16 of the winding length defining mechanism 15 is also wound up via the first connecting bracket member 9 pulled up by the connecting wire 10. Also in the intermediary device 40, when the first connecting bracket member 9 is pulled up to a predetermined height position, the length of the winding length defining belt 16 becomes full, and the lifting operation of the first connecting bracket member 9 is stopped. In the intermediary device 40, the winding length defining mechanism 15 locks the winding path of the first connecting bracket member 9, the coil spring 8, and the connection body of the length adjusting belt 12.

  In the intermediary device 40, as the winding motor 7 is further driven, as shown by the arrow in FIG. 11 without going through the winding path by the connecting body of the first connecting bracket member 9, the coil spring 8, and the length adjusting belt 12. A winding path for the second connecting bracket member 13 via the movable pulley 41 and the bracket member 42 is configured. In the intermediary device 40, the connecting belt 14 </ b> A and the connecting wire 14 </ b> B constituting the second connecting body 14 are directly wound up via the winding path so that the turning operation of the turning arm member 5 is continued.

  By the way, in the attendant apparatus 40, even if the 1st connection bracket member 9 is pulled up to a predetermined height position, the winding motor 7 does not automatically stop. In the attendant apparatus 40, when the specification is set, the caregiver starts and stops the winding motor 7 as a matter of course. In the attendant device 40, the care receiver 2 confirms the standing state, and the caregiver performs a stop operation of the winding motor 7.

  Needless to say, the intermediary device 40 is not limited to a configuration in which the movable pulley 41 is selected and assembled to the first connection bracket member 9 and the second connection bracket member 13 by the bracket member 42. The support device 40 includes the movable pulley 9A provided on the first connection bracket member 9 as in the above-described support device 1, but the second connection bracket member 13 may also include the movable pulley 41. The intermediary device 40 selects the moving pulley 9 </ b> A and the moving pulley 41 so that the connecting wire 10 is multiplied. In the assistance device 40, it is possible to perform an operation for switching the assistance force with a simple response.

  In the intermediary devices 1 and 40 described above, the length adjusting belt 12 that is adjustable in length with respect to the coil spring 8 is connected between the first connecting bracket member 9 and the second connecting bracket member 13. The elastic force adjusting mechanism 11 is configured by fixing the coupling body. The intermediary devices 1 and 40 are not limited to the elastic force adjusting mechanism 11, and a plurality of first coil springs 51 and second coil springs 52 having different natural lengths as shown in FIG. You may make it provide the elastic force adjustment mechanism 50 comprised by the multiple chain 53 couple | bonded with the spring 52, respectively.

  In the elastic force adjusting mechanism 50, the first coil spring 51 has a natural length that accumulates a predetermined elastic force according to the body shape of a standard cared person 2, and one end portion of the first elastic spring adjusting mechanism 50 is a first connecting bracket member. 9 and the other end is fixed to the second connecting bracket member 13. As the elastic force adjusting mechanism 50, the second coil spring 52 having a natural length shorter than that of the first coil spring 51 is used, and one end portion is fixed to the second connection bracket member 13, thereby connecting the connection body. The other end is fixed to the first connecting bracket member 9 via the chain 53.

  In the elastic force adjusting mechanism 50, the chain 53 selects a wheel and is latched by a latch pin 54 provided on the first coupling bracket member 9, whereby the first coupling bracket member 9 and the second coupling bracket member 13. Defines the length of the conjugate. In the elastic force adjusting mechanism 50, the first connecting bracket member 9 and the second connecting bracket member are configured such that the latching position of the chain 53 is lengthened so that the connecting body has a longer axis than the natural length of the first coil spring 51. 13 is defined by the natural length of the first coil spring 51. In the elastic force adjusting mechanism 50, the first connecting bracket member 9 and the second connecting bracket member are shortened by shortening the latching position of the chain 53 so that the connecting body has a shorter axis than the natural length of the first coil spring 51. 13 is defined by the length of the combined body.

  Accordingly, in the elastic force adjusting mechanism 50, the pulling force by the winding motor 7, in other words, the magnitude of the accumulated elastic force is adjusted by the length of the combined body of the second coil spring 52 and the chain 53. Since the elastic force adjusting mechanism 50 has a structure in which the chain 53 is connected only to the second coil spring 52, the number of parts can be reduced and the elastic force adjusting operation can be simplified.

  The present invention is not limited to the above-described embodiment, and it is a matter of course that the configurations described in the claims can be appropriately changed and developed without departing from the technical scope.

It is a whole perspective view of the attendant apparatus shown as embodiment of this invention. It is a side view of a use state. It is explanatory drawing of a rotation arm member drive system. It is a principal part perspective view which shows the support structure of a rotation arm member. It is a principal part perspective view which shows an elastic force adjustment mechanism and a winding length regulation mechanism. It is a principal part perspective view which shows a one-way delivery mechanism. It is explanatory drawing of the intervention operation | movement in a rotation arm member drive system, and is a figure which shows an initial state. It is a figure which shows the state in the 1st rising operation. It is a figure which shows the state in the 2nd rising operation. It is explanatory drawing of the rotation arm member drive system in the assistance apparatus shown as 2nd Embodiment. It is a figure which shows the state in the 2nd rising operation by the winding force of the winding motor in the rotation arm member drive system. It is a principal part front view which shows another elastic force adjustment mechanism.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Standing movement assistance device (help device), 2 cared person, 3 bed, 4 frame frame body, 5 rotation arm member, 6 support member, 7 winding motor, 8 coil spring, 9 1st connection bracket member, 9A motion Pulley, 10 first connecting body (connecting wire), 11 elastic force adjusting mechanism, 12 length adjusting belt, 13 second connecting bracket member, 14 second connecting body, 14A connecting belt, 14B connecting wire, 15 winding length regulating mechanism 15, 16 Winding length regulating belt, 17 First guide pulley, 18 Second guide pulley, 19 Clutch, 20 Rotating arm member drive system, 21 Connecting tool, 30 Hinge bracket, 31 Casters, 40 Intermediary device, 41 Moving pulley, 42 bracket member, 50 elastic force adjusting mechanism, 51 first coil spring, 52 second coil spring, 5 3 Chain

Claims (6)

It is a rising motion attendant device that accompanies the rising motion from the sitting posture to the rising posture of the care recipient,
A frame body,
A pair of left and right rotating arm members each having a base end portion that is pivotally supported by a hinge mechanism provided on the frame body and provided with a support member that supports a cared person at the free end portion;
A winder attached to the frame and for feeding or winding the first connector;
One end side is connected to the first connecting body, and the other end side is connected to the rotating arm member via a second connecting body, and the first winding body is wound by the hoist. A coil spring that stores an elastic force by a pulling operation;
One end side is connected to the first connecting body, and the other end side has a winding length defining body having a predetermined length longer than the natural length of the coil spring fixed to the frame frame, and the first connecting body A winding length defining mechanism that regulates the winding height position of
When the winding device is activated and the winding operation of the first connecting body is performed, the winding operation of the winding length regulation body is performed together with the winding operation of the coil spring that pulls the coil spring and stores the elastic force. Then, the rotating arm member is rotated through the coil spring and the second coupling body, and the care receiver is moved up from the sitting posture to the middle waist posture,
When the winding length defining body is wound up to its entire length and the winding operation of the first connecting body is stopped, the rotating arm is interposed via the second connecting body by the elastic force accumulated in the coil spring. A rising motion assisting device characterized in that the rotation of the member is continued and the care recipient performs an operation of rising from a middle waist posture to a standing posture.   2. The apparatus according to claim 1, wherein the coil spring is provided with an elastic force adjusting mechanism for adjusting an elastic force to be stored.   The rising motion assisting device according to claim 1 or 2, wherein the winding length defining mechanism is provided with a length adjusting mechanism that adjusts an overall length of the winding length defining body.   The rotating arm member is supported by a height adjustment mechanism with respect to the frame body, and is adjusted between a height position of the support member that is sandwiched between both sides and supports the care recipient. The rising motion intermediary device according to any one of claims 1 to 3.   The first connecting body or the second connecting body is provided with a one-way feeding mechanism, and the one-way feeding mechanism prohibits a feeding operation in a direction for returning the rotating arm member to the initial position side. 5. The rising motion attendant device according to any one of claims 1 to 4.   6. A moving pulley is provided on a connecting body for connecting the coil spring, and the first connecting body is engaged with the moving pulley to connect the winder and the coil spring. The rising motion attendant device according to any one of the above items.

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