JP4613312B2 - Transfer work support equipment - Google Patents

Description

  The present invention relates to a transfer work support device that supports a caregiver's transfer work.

  In the field of care, the caregiver often performs a transfer operation in which the cared person is transferred from the bed to a wheelchair or a toilet. In a normal transfer operation, a caregiver bends his waist, turns his arms from his armpit to his back, holds it, lifts it and twists it down. In the transfer work by this lifting / holding operation, the caregiver's work burden is very large because almost the entire weight of the care receiver is placed on the waist of the caregiver. For this reason, back pain has become an occupational disease at the nursing care site.

Then, the transfer machine for reducing the burden of a caregiver's transfer work is proposed (for example, refer patent document 1). The transfer operation using the transfer machine described in Patent Document 1 is performed as follows. First, the caregiver drives the electric motor and tilts the support post to which the body support is attached to the care receiver side. The cared person places his / her body on the body support so as to cover the upper surface of the body support. The caregiver drives the electric motor and puts the caregiver on the body support, erects the support column, and then rotates the turntable while supporting the caregiver's body to change the orientation of the caregiver's body. Change to the direction where the wheelchair is placed. Then, the electric motor is driven and the column is tilted so that the care recipient is seated on a wheelchair or the like.
Japanese Patent Laid-Open No. 10-192346

  In the transfer operation using the above transfer machine, the cared person needs to support his / her body weight with the chest and the abdomen, so that the cared person's chest and internal organs are compressed, which may cause pain to the cared person. In addition, an elderly person who is difficult to bend the knees and hip joints may feel anxiety and fear of taking an unnatural posture. Thus, it was difficult to say that the transfer machine respected the position of the care recipient. Therefore, in the field of care, it was strongly desired to respect the position of the cared person and reduce the burden of the carer's transfer work without giving the cared person anxiety or fear.

  The present invention has been made in order to solve the above-described problems, and is a transfer work support device that can reduce the burden of a caregiver's transfer work without giving anxiety or fear to the care recipient. The purpose is to provide.

  A transfer work support device according to the present invention is a transfer work support device that supports a transfer work involving lifting and lowering of a cared person, and an assist means that can be vertically expanded and contracted, and an upper part of the assist means. And a support arm that supports both sides of the care recipient, a wheel provided at a lower portion of the assist means, and an operation unit that causes the assist means to extend and contract.

  According to the transfer work support apparatus according to the present invention, the support arm that supports both sides of the cared person is advanced and retracted by the assist means, and the lifting / holding operation is assisted. Moreover, twisting operation and movement are facilitated by providing the wheels. In this way, it is possible to assist a series of transfer operations such as holding and holding while holding the holding posture, so that the caregiver does not feel anxiety or fear, The burden of transfer work can be reduced.

  In the transfer work support device according to the present invention, it is preferable that the wheels are arranged at the front and rear of the lower portion of the assist means.

  In this case, by providing a plurality of wheels arranged at the front and rear, it is possible to further improve the stability in the transfer work (lifting work, twisting work, and holding work). In the present specification, the forward direction of the caregiver when using the transfer work support device is defined as “front”, and words such as “front”, “rear”, “left”, “right”, and the like are used. To do.

  The transfer work support device according to the present invention preferably includes a front-rear direction grounding member that makes a wheel non-actuated by grounding when the transfer work support device is tilted in the front-rear direction.

  In this way, when the transfer work support device falls in the front-rear direction, the front-rear direction grounding member can be grounded and the movement by the wheel can be automatically restrained, so the caregiver needs to operate the braking device etc. Therefore, it is possible to further reduce the burden of transfer work.

  Moreover, it is preferable that the transfer operation | work assistance tool which concerns on this invention is equipped with the left-right direction earthing | grounding member which earth | grounds by the fall of the left-right direction of a transfer work support device, and makes a wheel non-operation state.

  If it does in this way, it will become possible to stabilize the posture of a cared person in the left-right direction, without the transfer work support instrument greatly tilting in the left-right direction.

  Moreover, in the transfer work support device according to the present invention, it is preferable that a step for placing a non-caregiver's foot on the tip of the left-right direction grounding member is provided via a hinge.

  In this case, by placing the cared person's foot on the step, it is not necessary to drag the cared person's foot during movement, and therefore, twisting and moving work can be performed more easily.

  Moreover, it is good also as a structure provided with the step which mounts a to-be-cared person's foot | leg under the assist means.

  Also in this case, it is not necessary to drag the care recipient's foot when moving, so that the twisting operation and the moving operation can be performed more easily.

  In the transfer work support device according to the present invention, it is preferable that the operation portion is provided coaxially on the upper portion of the assist means, and a support arm is connected to the operation portion.

  By arranging the operation unit, the assist means, and the support arm in this manner, the transfer work support device can be made compact, so that the degree of freedom of the posture of the caregiver and the cared person is increased, and the transfer work is performed. Sometimes it is possible to prevent the care recipient from feeling uncomfortable.

  The transfer work support device according to the present invention preferably further includes a shin fixing tool for fixing the care receiver's shin to the assist means.

  In this way, it is possible to prevent the cared person's body from moving away from the transfer work support device when hugging / holding or moving.

  In the transfer work support device according to the present invention, the assist means is preferably a spring with a lock mechanism.

  In this case, the lifting / holding operation can be assisted by advancing and retracting the support column using the elastic force of the spring. Further, the energy of the cared person can be stored using the weight of the cared person when hung down, and can be used as an energy source for the next transfer operation by locking in this state. As a result, since a power source or the like is not required, the instrument can be reduced in size and weight, and portability can be improved.

  In the transfer work support device according to the present invention, the assist means is preferably an electric linear motor.

  In this case, a larger assist force can be obtained by using an electric linear motor. For this reason, even a powerless caregiver can transfer a cared person with a higher weight.

  According to the present invention, there is provided an assist means that can be vertically expanded and contracted, a support arm that is connected to the upper portion of the assist means and supports the armpits of the care recipient, and a wheel provided at the lower portion of the assist means. Therefore, it is possible to reduce the burden of the caregiver's transfer work without giving the care recipient a sense of incongruity or anxiety.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the figure, the same reference numerals are used for the same or corresponding parts.

  First, the configuration of the transfer work support device 1 according to the first embodiment will be described with reference to FIG. FIG. 1 is a perspective view of the transfer work support device 1. In the following, front and rear, right and left and up and down directions are defined and used as shown in FIG.

  The transfer work support device 1 includes a support arm 10 that supports both sides of a care receiver. The support arm 10 is a substantially U-shaped member, and is applied to both sides of the cared person at the time of transfer work, and a pair of support portions 11 arranged substantially in parallel to support the body from both sides, and each support It has the connection part 12 which connects the edge part of the part 11. FIG. The support arm 10 is formed of, for example, a lightweight pipe made of an aluminum alloy, and the surface thereof is covered with a cushioning material 13 such as a high-density foam material, a rubber air tube, or a gel material.

  The upper end of the support column 20 is connected to the central portion of the connecting portion 12 of the support arm 10 in a direction substantially perpendicular to the surface formed by the pair of support portions 11. Therefore, when the support column 20 is set up vertically, the support arm 10 becomes almost horizontal. The support column 20 is also formed of a lightweight pipe made of aluminum alloy.

  The lower end of the support column 20 is connected to the upper surface of a hollow cylindrical operation unit 30 having an opening. In addition, a gas spring 40 with a hydraulic lock mechanism is connected to the lower surface of the operation unit 30 to move the support column 20 back and forth in the axial direction. The support | pillar 20, the operation part 30, and the gas spring 40 with a hydraulic locking mechanism are arrange | positioned coaxially in series. The operation unit 30 adjusts the advance / retreat amount of the support column 20 by extending and contracting the gas spring 40 with a hydraulic lock mechanism.

  A lock release pin 33 of a gas spring 40 with a hydraulic lock mechanism, which will be described later, projects from the bottom surface of the operation unit 30. A lever 35 that swings up and down around a fulcrum 34 is provided inside the hollow cylindrical operation unit 30 so as to contact the lock release pin 33. An operation lever 32 that adjusts the amount of advancement / retraction of the support column 20 is connected to the tip of the lever 35 protruding from the opening. An operation handle 31 is connected to the tip of the lever 35 through a tension cable 36. More specifically, a collar portion 37 is provided below the opening, and an outer sheath constituting the tension cable 36 is connected to the lever 35, and an inner cable is connected to the collar portion 37.

  By grasping the operation handle 31 or pulling the operation lever 32 forward (in the direction of arrow Y1 in FIG. 1), the lever 35 is pushed down around the fulcrum 34 (in the direction of arrow Y2 in FIG. 2) to be hydraulically locked. The lock release pin 33 of the mechanism-equipped gas spring 40 is pushed. As a result, the strut 20 advances by the spring force of the gas spring 40 with a hydraulic lock mechanism. In addition, when a load greater than the spring force is applied in this state, the column 20 retreats.

  On the other hand, by releasing the operation handle 31 or the operation lever 32, the operation handle 31 or the operation lever 32 is returned to the original state by the spring force, and the lever 35 is pushed upward with the fulcrum 34 as the center, so that the hydraulic lock The lock release pin 33 of the mechanism-equipped gas spring 40 is returned. As a result, the gas spring 40 with a hydraulic lock mechanism is locked. Thus, the advance / retreat amount of the support column 20 can be adjusted by both the operation handle 31 and the operation lever 32. That is, the operation unit 30 functions as an operation unit described in the claims. Note that which of the operation handle 31 and the operation lever 32 is used can be selected according to the posture during the transfer operation.

  The gas spring 40 with a hydraulic lock mechanism supports the operation unit 30 and the support column 20 in a rotatable manner, and advances and retracts the support column 20 in its axial direction. In the present embodiment, a gas reaction force having about 300 (N) was used. Here, when holding down the cared person, the weight of the cared person is used to store energy in the gas spring 40 with a hydraulic lock mechanism, so the value of the gas reaction force takes into account the carer's physical strength and the like It is set to a value smaller than the weight of the cared person.

  FIG. 2 shows a cross-sectional view of the gas spring 40 with a hydraulic lock mechanism. 3A and 3B show the unlocked / locked state of the gas spring 40 with a hydraulic lock mechanism. The gas spring 40 with a hydraulic lock mechanism has a bottomed cylindrical cylinder tube 41 filled with oil and compressed gas (nitrogen gas). A piston 42 slidably provided in the axial direction and a hollow rod 43 whose one end is fixed to the piston 42 and whose other end protrudes outside the cylinder tube 41 are inserted into the cylinder tube 41. The operation unit 30 is connected to the other end of the rod 43.

  A rod guide 44 that slidably supports the rod 43 and seals the cylinder tube 41, and an oil seal 45 that prevents oil leakage between the rod 43 and the rod guide 44 are provided on the upper portion of the cylinder tube 41. And are provided.

  The cylinder tube 41 is divided into an upper chamber A and a lower chamber B by a piston 42, and a compressed gas chamber C is separated in the lower chamber B by a free piston 46 slidably provided in the axial direction. It is made. In the gas spring 40 with a hydraulic lock mechanism, the oil in the lower chamber B is pressurized via the free piston 46, and the gas reaction force is transmitted to the rod 43 via this oil.

  The piston 42 is formed with an orifice 47 that allows the upper chamber A and the lower chamber B to communicate with each other. In addition, a valve 48 is provided on the lower surface of the piston 42 to open and close the orifice 47 so that the communication between the upper chamber A and the lower chamber B is interrupted. A lock release pin 33 provided in the hollow portion of the rod 43 is connected to the valve 48.

  As shown in FIG. 3A, when the lock release pin 33 is pushed in, the valve 48 is opened, the upper chamber A and the lower chamber B are communicated, and the lock of the rod 43 is released. As a result, the rod 43 is pushed out by the reaction force of the compressed gas, and the support column 20 advances. On the contrary, when a load larger than the gas reaction force is applied to the rod 43 (support arm 10) in this state, the rod 43 is pushed back and the support column 20 is retracted.

  On the other hand, as shown in FIG. 3B, when the lock release pin 33 is released, the valve 48 is automatically closed by the gas pressure, and the communication between the upper chamber A and the lower chamber B is established. It is cut off and the rod 43 is locked. As a result, the column 20 is locked. Thus, the gas spring 40 with a hydraulic lock mechanism functions as assist means described in the claims.

  Returning to FIG. 1, the description will be continued. A shin fixing tool 50 is attached to the outer peripheral portion of the gas spring 40 with a hydraulic lock mechanism so as to be movable in the axial direction (vertical direction). The shin fixing device 50 includes a belt slider 51 that moves and fixes the shin fixing device 50, and a shin fixing belt 52 that fixes the care receiver's shin to the transfer work support device 1 by winding the shin fixing device 50 around the care receiver's shin. And have. A hook-and-loop fastener 53 is attached to both ends of the shin fixing belt 52, and both ends are joined in a peelable manner.

  At the base end portion of the cylinder tube 41 constituting the gas spring 40 with a hydraulic lock mechanism, a single free caster (wheel) 60 that can freely change the moving direction is attached.

  A front-rear direction grounding member 70 having a substantially U-shaped cross section is attached to the base end portion of the cylinder tube 41 so as to cover the front and rear of the universal caster 60 from above. The front-rear direction grounding member 70 is grounded when the support column 20 is tilted and restrains the movement of the universal caster 60. The front-rear direction grounding member 70 has a predetermined gap between its end and the floor surface when the transfer work support device 1 is set up vertically, and as shown in FIG. When 1 is tilted back and forth, the end portion is provided so as to be pressed against the floor surface. Then, when the end portion of the front-rear direction grounding member 70 is pressed against the floor surface, the free caster 60 is brought into a non-operating state, and the movement of the transfer work support device 1 is restricted.

  The transfer work support device 1 includes a free caster 60 and a gas spring 40 with a hydraulic lock mechanism, so that it can move back and forth, move left and right, tilt forward and backward (pitch), tilt right and left (roll), swivel (yaw), and move up and down. (Lift) movement is possible and has 6 degrees of freedom.

  Next, operation | movement of the transfer work assistance tool 1 is demonstrated, referring FIG. FIG. 5 is a diagram for explaining a standard transfer operation using the transfer operation support device 1. Here, the case where a care receiver is transferred from a bed to a wheelchair will be described as an example. In FIG. 5, the bed and the wheelchair are not shown.

  First, the caregiver 90 stands the transfer work support device 1 in front of the cared person 92 so that the opening of the support arm 10 faces the cared person 92 sitting on the bed in the end sitting position. Next, the column 20 in the contracted state is tilted so that the support portion 11 of the support arm 10 is sandwiched between the armpits of the cared person 92 and the shin fixing belt 52 is wound around the shin of the cared person 92. 92 shins are fixed to the transfer work support device 1. Subsequently, the caregiver 90 steps on the pivot leg between the knees of the cared person 92 and holds the upper body of the cared person 92 with both arms. At this time, the caregiver 90 may grasp the waist belt of the care receiver 92 or the like. Further, the hand of the cared person 92 is held on the shoulder of the carer 90 (FIG. 5A). At this time, the front end portion of the front-rear direction grounding member 70 is pressed against the floor surface, and the transfer work support device 1 is fixed.

  Next, the caregiver 90 lifts the cared person 92 so as to draw it toward him. Further, when the care receiver 92 is lifted up, the lock of the gas spring 40 with a hydraulic lock mechanism is released by grasping the operation handle 31 (or pulling the operation lever 32 forward) (FIG. 5B). The unlocked gas spring 40 with a hydraulic lock mechanism advances the support column 20 by the reaction force of the compressed gas and assists the lifting operation. Therefore, the caregiver 90 can lift the caregiver 92 with a difference force between the weight of the cared person 92 and the assist force by the gas spring 40 with the hydraulic lock mechanism. When the raising of the care receiver 92 is completed, the caregiver 90 releases the operation handle 31 that has been gripped. When the operation handle 31 is released, the gas spring 40 with a hydraulic lock mechanism is locked again, and the support column 20 is fixed. When the person to be cared 92 is lifted, the cared person can be stably lifted by pressing the rear end portion of the front-rear direction grounding member 70 with his / her foot.

  Subsequently, as shown in FIG. 5C, when the cared person 92 is swung toward the wheelchair so as to rotate about the support column 20, the universal caster 60 rotates and changes its direction.

  Then, by operating the operation handle 31 to release the lock of the gas spring 40 with a hydraulic lock mechanism and defeating the transfer work support device 1, the cared person 92 is slowly held using the reaction force of the compressed gas. Lower and sit on the wheelchair (FIG. 5 (d)). When the cared person 92 is held down, the compressed gas is compressed by the weight of the cared person 92 and energy is stored in the gas spring 40 with a hydraulic lock mechanism. Then, the operation lever is released in a state where energy is stored in the gas spring 40 with the hydraulic lock mechanism, that is, the column 20 is contracted, and the gas spring 40 with the hydraulic lock mechanism is locked.

  According to the present embodiment, the support column 20 to which the support arm 10 that supports both sides of the care recipient is connected is advanced and retracted by the gas spring 40 with a hydraulic lock mechanism, and the lifting / holding operation is assisted. Moreover, by providing the universal caster 60, twisting operation and movement are facilitated. In this way, it is possible to assist a series of transfer operations such as holding and holding while holding the holding posture, so that the caregiver does not feel anxiety or fear, The burden of transfer work can be reduced.

  Further, by using the gas spring 40 with a hydraulic lock mechanism, energy can be stored using the weight of the cared person when hung down, and by locking in this state, energy for the next transfer operation can be stored. Can be used as a source. As a result, since a power source or the like is not required, the instrument can be reduced in size and weight, and portability can be improved.

  Further, by arranging the gas spring 40 with a hydraulic lock mechanism coaxially with the support column 20 and the operation unit 30, the lateral width of the transfer work support device 1 can be reduced, so that the degree of freedom of the care recipient's posture is increased. And it becomes possible to suppress giving a caregiver a sense of incongruity at the time of transfer work.

  Further, by providing the shin fixing tool 50 for fixing the care receiver's shin to the gas spring 40 with a hydraulic lock mechanism, the cared person's body can be separated from the transfer work support device 1 when lifting or hugging or moving. Can be prevented.

  In addition, since the front-rear direction grounding member 70 is provided, the movement by the free caster 60 can be automatically restrained when the support column 20 tilts, so that the caregiver does not need to operate the braking device or the like, and the transfer work It is possible to further reduce the burden of

  Next, a second embodiment of the transfer work support device will be described. The present embodiment differs from the first embodiment in that a coil spring 400 with a pressurizing lock mechanism is used instead of the gas spring 40 with a hydraulic lock mechanism. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here.

  FIG. 6 shows a cross-sectional view of the coil spring 400 with a pressurizing lock mechanism. In FIG. 6, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals. The coil spring 400 with a pressurizing lock mechanism has a bottomed cylindrical cylinder tube 401 in which the coil spring 402 is enclosed. The inside of the cylinder tube 401 is divided into an upper chamber D and a lower chamber E by a partition member 406.

  The support column 20 is coaxially inserted from the outside into the upper chamber D and the lower chamber E forming the cylinder tube 401. In the upper chamber D, a substantially cylindrical pressurizing lock guide 408 fixed to the support column 20 is provided so as to be slidable in the axial direction. The coil spring 402 includes the pressurizing lock guide 408, the partition member 406, and the like. Between the columns 20 and the column 20.

  A stopper 404 that seals the cylinder tube 401 is provided at the upper portion of the cylinder tube 401 so as to slidably support the column 20. In addition, the partition member 406 is provided with a column guide 407 that slidably supports the column 20. The column 20 is pushed down, and the pressurizing lock guide 408 moves downward, so that the coil spring 402 is compressed. On the contrary, the support 20 is advanced by extending the coil spring 402 and pushing up the pressurizing lock guide 408.

  An operation unit 30 is attached to the outer peripheral surface of the cylinder tube 401. The pressurizing lock guide 408 is formed with a concave portion in the circumferential direction, and as shown in FIG. 6A, the operation lever 32 moves in the direction of the cylinder tube 401 (the direction of the arrow Y3 in FIG. 6A). When pushed, the lock pin 405 attached to the operation lever 32 is pushed out radially inward of the cylinder tube 401. On the other hand, a lock pin insertion hole 409 is formed on the outer peripheral surface of the cylinder tube 401 at a position corresponding to the lock pin 405, and the lock pin 405 pushed out by the operation lever 32 and the concave portion of the pressurization lock guide 408 are formed. The coil spring 402 is locked by being fitted.

  Conversely, as shown in FIG. 6B, when the operation lever 32 is pulled forward (in the direction of arrow Y <b> 4 in FIG. 6B), the lock pin 405 attached to the operation lever 32 is connected to the cylinder tube 401. Is pulled out radially outward. As a result, the lock pin 405 is pulled out of the recessed portion of the pressurizing lock guide 408, whereby the coil spring 402 is unlocked.

  Also according to this embodiment, an effect equivalent to that of the first embodiment described above can be obtained.

  Next, a third embodiment of the transfer work support device will be described. This embodiment is different from the first embodiment in that an electric linear motor 410 is used instead of the gas spring 40 with a hydraulic lock mechanism. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here.

  FIG. 7 shows a cross-sectional view of the main part of the electric linear motor 410. In FIG. 7, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals. The electric linear motor 410 includes an electric motor 411, a ball screw 413 connected to the drive shaft 412 of the electric motor 411, and a slide nut 414 engaged with the ball screw 413. The ball screw 413 and the slide nut 414 constitute a speed reduction mechanism. In addition, the column 20 is connected to the slide nut 414.

  The rotational motion of the electric motor 411 is converted into a linear motion by the ball screw 413 and the slide nut 414. As a result, the prop 20 is advanced and retracted by the electric motor 411 rotating forward or reverse. Note that driving (forward rotation, reverse rotation) and stopping of the electric motor are controlled by an operation handle 31 and an operation lever 32 provided in the operation unit 30.

  According to the present embodiment, a larger assist force can be obtained by using the electric linear motor 410. For this reason, even a powerless caregiver can transfer a cared person with a higher weight.

  Next, a fourth embodiment of the transfer work support device will be described. As shown in FIG. 8, the present embodiment further includes a step 80 that is a plate-like member on which the care receiver's foot is placed on the base end portion of the cylinder tube 41 constituting the gas spring 40 with a hydraulic lock mechanism. This is different from the first embodiment. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here.

  According to the present embodiment, by placing the cared person's foot on the step 80, it is not necessary to drag the cared person's foot during movement or the like, so that twisting and moving work can be performed more easily. Become.

  Next, the structure of the transfer operation | work assistance tool 5 which concerns on 5th Embodiment is demonstrated using FIG. FIG. 9 is a perspective view of the transfer work support device 5. In FIG. 9, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals.

  This embodiment is different from the first embodiment in that it is substantially L-shaped so that the rear end of the universal caster 60 is covered from above at the base end portion of the gas spring 40 with a hydraulic lock mechanism instead of the front-rear direction grounding member 70. The rear grounding member 76 of the cross section is attached, and a fork 62 that rotatably supports the wheel 61 of the universal caster 60 is attached to a brake shoe 78 that brakes the wheel 61. The leaf spring member 77 is attached. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here.

  The brake shoe 78 attached to the leaf spring member 77 brakes the wheel 61 of the free caster 60 when the transfer work support device 5 is tilted forward. Further, the rear grounding member 76 is grounded when the transfer work support device 5 is tilted rearward and restrains the movement of the transfer work support device 5 by the free caster 60.

  The brake shoe 78 has a predetermined gap between the wheel 61 and the floor surface when the transfer operation support device 5 is set up in the vertical direction, and when the transfer operation support device 5 is tilted forward, The bent portion of the leaf spring member 77 to which the brake shoe 78 is attached is provided so as to abut against the floor surface and be pressed against the wheel 61 when the leaf spring member 77 is bent. And the wheel 61 is braked when the brake shoe 78 is pressed by the wheel 61 (refer FIG. 10). In the present embodiment, the leaf spring member 77 and the rear grounding member 76 function as the front-rear direction grounding member described in the claims.

  Also according to this embodiment, an effect equivalent to that of the first embodiment described above can be obtained.

  Next, the configuration of the transfer work support device 6 according to the sixth embodiment will be described with reference to FIG. FIG. 11 is a perspective view of the transfer work support device 6. In FIG. 11, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals.

  The present embodiment is a base that is a rectangular plate-like member having a hinge portion 701 that supports the gas spring 40 with a hydraulic lock mechanism and the support column 20 so as to be tiltable in the front-rear direction at the base end portion of the gas spring 40 with a hydraulic lock mechanism. (Base member) A point where 700 is attached, a point where two universal casters 60 are attached to the base 700, and a brake shoe 78 which brakes the front universal caster 60 when the column 20 is tilted. The substantially L-shaped leaf spring member 77 to which is attached is different from the first embodiment in that the leaf spring member 77 is attached to the hinge portion 701 via a bracket 79. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here. In the present embodiment, the leaf spring member 77 functions as the front-rear direction grounding member described in the claims.

  According to this embodiment, by providing the two free casters 60, it is possible to further improve the stability in the transfer work (lifting work, twisting work, and holding work).

  Next, the configuration of the transfer work support device 7 according to the seventh embodiment will be described with reference to FIG. FIG. 12 is a perspective view of the transfer work support device 7. In FIG. 12, the same or equivalent components as those in the first embodiment are denoted by the same reference numerals.

  This embodiment is different from the first embodiment in that a left and right direction grounding member 85 having a substantially U-shaped cross section is provided at the base end portion of the cylinder tube 41 so as to cover the left and right side surfaces of the free caster 60 from above. The point 87 and the step 87 for putting a caregiver's leg | foot on the both ends of this left-right direction grounding member 85 via the hinge 86 are provided. Other configurations are the same as or similar to those of the first embodiment, and thus description thereof is omitted here.

  The left-right direction grounding member 85 limits the excessive fall while allowing the transfer work support device 7 to fall in the roll direction (left-right tilt). The left-right direction grounding member 85 has a predetermined gap between the hinge 86 attached to its end and the floor surface when the transfer work support device 7 is set up vertically, as shown in FIG. In addition, the hinge 86 is provided so as to be pressed against the floor surface when the transfer work support device 7 is tilted left and right. And when the hinge 86 attached to the edge part of the left-right direction earthing | grounding member 85 is pressed on a floor surface, the excessive fall of the transfer work assistance instrument 7 is restrict | limited.

  A step 87 is attached to the hinge 86 so as to be swingable. Step 87 is a plate-like member having an end formed in a semicircular shape. A spacer 88 coated with a friction reducing material for reducing friction with the floor surface is attached to the bottom edge of step 87. When the cared person's foot is placed on the step 87, the step 87 swings around the hinge 86 and contacts the floor surface via the spacer 88. Note that a torsion spring or the like may be provided on the hinge 86 so that the step 87 does not hang down when the transfer work support device 7 is lifted.

  According to the present embodiment, by providing the left and right direction grounding member 85, it is possible to limit the lateral fall of the transfer work support device 7 to a safe range. Further, according to the present embodiment, when the care receiver is moved, the step 87 where the care receiver's foot is placed contacts the floor surface via the spacer 88, so that the stability during the movement can be improved. Can do. Furthermore, since the surface of the spacer 88 is coated with a friction reducing material, the frictional resistance can be reduced, for example, compared with the case where the care receiver is moved by dragging his / her foot. This can be performed more easily.

  As mentioned above, although the invention made by the present inventors has been specifically described based on the embodiment, the present invention is not limited to the above embodiment. For example, the support arm 10 only needs to be able to support the body of the care recipient from both sides, and the shape thereof is not limited to a substantially U shape, and may be, for example, a substantially U shape.

  In the above embodiment, the free caster is used as the wheel. However, a ball wheel that can move in all directions, a sled with a friction reducing material attached to the bottom surface, or the like can also be used.

  You may provide the step which mounts a to-be-cared person's leg on the transfer operation | work assistance tools 5 and 6 which concern on 5th Embodiment or 6th Embodiment. The step shape is not limited to a plate shape, and may be a rod shape. Moreover, you may provide the step attached to the both ends of the left-right direction grounding member and the left-right direction grounding member via the hinge 86 in the transfer operation | work assistance tool 5 and 6. FIG. Furthermore, instead of the gas spring with a hydraulic lock mechanism of the transfer work support tools 5, 6 and 7, a coil spring with a pressurizing lock mechanism, an electric linear motor, or the like may be used.

It is a perspective view of the transfer work support device concerning a 1st embodiment. It is sectional drawing of the gas spring with a hydraulic lock mechanism which comprises the transfer work assistance tool which concerns on 1st Embodiment. It is a figure for demonstrating unlocking / locking operation | movement of a gas spring with a hydraulic lock mechanism. It is a figure for demonstrating operation | movement of the front-back direction grounding member. It is a figure for demonstrating the transfer operation | work using the transfer operation | work assistance tool which concerns on 1st Embodiment. It is sectional drawing of the coil spring with a pressurization locking mechanism which comprises the transfer work assistance tool which concerns on 2nd Embodiment. It is principal part sectional drawing of the electric linear motor which comprises the transfer work assistance tool which concerns on 3rd Embodiment. It is a perspective view of the step which comprises the transfer work assistance tool which concerns on 4th Embodiment. It is a perspective view of the transfer work assistance tool concerning a 5th embodiment. It is a figure for demonstrating operation | movement of a brake shoe. It is a perspective view of the transfer work assistance tool concerning a 6th embodiment. It is a perspective view of the transfer work assistance tool concerning a 7th embodiment. It is a figure for demonstrating operation | movement of the left-right direction grounding member.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1,5,6,7 ... Transfer work assistance instrument, 10 ... Support arm, 20 ... Support | pillar, 30 ... Operation part, 40 ... Gas spring with hydraulic locking mechanism, 50 ... Shin fixing tool, 60 ... Swivel caster, 70 ... Front and rear Direction grounding member, 76 ... rear grounding member, 77 ... brake shoe, 80 ... step, 85 ... left and right direction grounding member, 86 ... hinge, 87 ... step, 90 ... carer, 92 ... cared person, 400 ... pressurization lock Coil spring with mechanism, 410 ... electric linear motor, 700 ... base.

Claims (10)

A transfer work support device for supporting a transfer work involving lifting and lowering of a cared person,
Assist means that can be expanded and contracted vertically,
A support arm provided above the assist means via a support and supporting both sides of the care recipient;
Wheels provided below the assist means;
An operation section for extending and retracting the assist means ,
The support column is connected to the support arm in a direction substantially perpendicular to the support arm;
The assist means and the support column are arranged coaxially in series,
The wheel is provided with only one wheel in any left and right direction of the transfer work support device,
A transfer work support device characterized by that.   2. The transfer work support device according to claim 1, wherein the wheels are arranged at the front and rear of the assist means.   The transfer work support device according to claim 1, further comprising a front-rear direction grounding member that grounds the wheel when the transfer work support device is tilted in the front-rear direction to bring the wheel into an inoperative state.   The transfer work support device according to claim 3, further comprising a left and right direction grounding member that grounds when the transfer work support device is tilted in the left-right direction to bring the wheel into an inoperative state.   5. The transfer work support device according to claim 4, wherein a step for placing a care recipient's foot is provided at a distal end portion of the left-right direction grounding member via a hinge.   The transfer work support device according to any one of claims 1 to 4, further comprising a step for placing the care receiver's foot on a lower portion of the assist means.   The transfer according to any one of claims 1 to 6, wherein the operation unit is provided coaxially on the assist means, and the support arm is connected to the operation unit. Work support equipment.   The transfer work support device according to claim 1, further comprising a shin fixing tool that fixes the shin of the care recipient to the assist means.   The transfer assisting device according to any one of claims 1 to 8, wherein the assist means is a spring with a lock mechanism.   The transfer assist device according to claim 1, wherein the assist means is an electric linear motor.

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