JP2018108880A - Lifting device for movement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To address the problem of a conventional lifting device for movement, that is, the difficulty of moving in a state where a person to be cared is lifted and bathing the person by one lifting operation, etc., caused by the enlargement of the device itself.SOLUTION: A lifting device 1 for movement is mainly provided with: a travel frame 2; a main pillar 3 that is arranged on the travel frame 2; a support arm 4 that is attached to the main pillar 3; and a suspension 5 that is attached to the support arm 4. The support arm 4 is lifted with respect to the main pillar 3, and thus the lifting device 1 is used safely even at home. The tip side advancing/retreating parts 2D, 2E of the travel frame 2 advance in a movement mode, and retreat in a stop mode, and thus a person to be cared can be safely bathed or the like by one lifting operation.SELECTED DRAWING: Figure 1

Description

  The present invention is a moving lift device that can move in a state in which a person or an object to be transported is lifted, and in particular, a caregiver such as a bedridden elderly person or an elderly person who has difficulty walking can be lifted from a bed and used in a bathroom or toilet The present invention relates to a lift device for movement that can be transported to the like.

  Against the background of the elderly society, the number of caregivers who are bedridden and bedridden due to difficulty walking is increasing. In order to lift and move the caregiver from the bed, such as moving the caregiver from the bed to the bathroom and putting it in the bathtub, a lift device for movement is used.

  As a conventional moving lift device, a structure shown in FIG. 9 is known. FIG. 9 is a perspective view for explaining the column rotation type traveling care lift 100.

  As shown in FIG. 9, the column rotation type traveling care lift 100 mainly includes a carriage 101, a main pillar 102 erected on the carriage 101, a boom 103 disposed on the upper end side of the main pillar 102, and a boom 103. And a hanger 104 disposed on the front end side of the.

  The carriage 101 has a pair of base frames 105 and 106. The base frames 105 and 106 are each provided with a small-diameter wheel 107 on one end side and a large-diameter wheel 108 on the other end side. Yes. And a pair of base frames 105 and 106 are connected with the horizontal frame 109 in each rear end side. The horizontal frame 109 is provided with a main pillar attaching portion 110, and the main pillar 102 is rotatably held by the main pillar attaching portion 110.

  The boom 103 has an arcuate shape with a distal end curved, and a hanger 104 is attached to the distal end side. At both ends of the hanger 104, hook members 111 and 112 for hooking a hanger (not shown) for lifting a caregiver such as an elderly person are disposed.

  The column rotation type traveling care lift 100 is used when a caregiver is moved from a bed to a wheelchair, a toilet, a bathroom, or the like. When lifting the caregiver from the bed, the front ends of the base frames 105 and 106 are hidden under the bed bottom. Thereafter, the linear motion drive mechanism 113 is operated, the caregiver is placed on a hanging tool hung on the hook members 111 and 112 of the hanger 104, and the caregiver is lifted from the bed to the desired place. And move. At this time, by operating the handle 114 attached to the main pillar 102 and appropriately rotating the main pillar 102, the position of the lifted caregiver is changed, and the stable movement of the column rotating type traveling care lift 100 can be performed. (For example, refer patent document 1).

JP 2001-314458 A (page 5-8, FIG. 1-6)

  As described above, in the column rotation type traveling care lift 100, the wheels 107 and 108 are disposed at both ends of the base frames 105 and 106 as the carriage 101, and the caregiver can be lifted and moved. Then, when lifting the caregiver from the bed, the hanger 104 at the tip of the boom 103 is placed at a desired position with respect to the bed by letting the tip side of the base frames 105 and 106 under the bed bottom. be able to.

  However, when the base frames 105 and 106 cannot be hidden under the bathtub as in a bathtub in a bathroom, the tips of the base frames 105 and 106 collide with the side wall of the bathtub, and the hanger 104 is attached to the bathtub. The caregiver hung up on the hanger 104 could not be put directly into the bathtub. As a result, the caregiver hangs from the column rotation type traveling care lift 100 to another care lift device for bathing, so that the suspending work is also a heavy labor. There is a problem that it is difficult to maintain safety.

  Moreover, in the support | pillar rotation type traveling care lift 100, the base frames 105 and 106 are extended outwardly toward the tip side, and are arranged in a substantially C shape, and the height of the main pillar 102 and the height of the boom 103 are as follows. The structure is difficult to adjust as appropriate. Therefore, when the support column rotating type traveling care lift 100 is used at home, the size of the support column rotating type traveling care lift 100, such as the height of the main pillar 102, with respect to the frontage of various sizes, It is difficult to adjust and difficult to use at home.

  Moreover, in the support | pillar rotation type | formation nursing care lift 100, since the wheel 107,108 is arrange | positioned at the both ends of the base frames 105,106 as the trolley | bogie 101, the rotation radius of the support | pillar rotation type travel care lift 100 becomes large. There is a problem that it is difficult to turn around. As described above, when the column support type traveling care lift 100 is used in the home, there is a problem that the width of the corridor is narrow, the corners are many, and the operability of the support column type traveling care lift 100 is poor. Further, since the operability of the prop rotating type traveling care lift 100 is poor, there is a problem that it is difficult to keep caregivers safe especially when moving in a narrow area such as in the home.

  Moreover, in the support | pillar rotation type traveling care lift 100, the hook members 111 and 112 are provided in the both ends of the hanger 104, and a caregiver gets on the hanger hung on the hook members 111 and 112, and moves. In other words, since the hanger carrying the caregiver is in a two-point support state by the hook members 111 and 112, the hanger is easily shaken during movement, the stability during movement is poor, and the caregiver's safety during movement is maintained. There is a problem that it is difficult.

  The present invention has been made in view of the above circumstances, and is provided with a support arm portion that is disposed with respect to the main column and is movable in the vertical direction, and a cross-shaped suspension portion that is disposed at the tip of the support arm portion. Therefore, it is desirable to provide a lift device for movement that can appropriately adjust the suspension height and transport a caregiver while maintaining stability.

  In the lift device for movement according to the present invention, a traveling frame on which a plurality of wheels are disposed, a main column disposed on the traveling frame, and one end side are disposed on the inner side of the main column, A support arm that can be moved up and down with respect to the extending direction; a suspension provided on the other end of the support arm; and a wire provided on the inner side of the main pillar. A sliding member that moves up and down the inside of the main pillar via the wire is provided on one end side of the arm portion, and the wire is guided by a pulley disposed on an upper end side inside the main pillar, and the wire One end side of the wire is fixed to the sliding member, and the other end side of the wire is fixed to a winding mechanism for winding or feeding the wire.

  Moreover, in the lift apparatus for movement of this invention, four rolling bearings are arrange | positioned at the side surface which the said width direction of the said sliding member opposes, and a pair of said rolling bearing arrange | positioned at the upper end side of the said sliding member Is arranged at a position in contact with the inner front surface of the main pillar when the sliding member is raised and lowered, and the pair of rolling bearings arranged on the lower end side of the sliding member are raised and lowered by the sliding member. It is sometimes arranged at a position in contact with a rear surface inside the main pillar.

  In the lift device for movement according to the present invention, the front end side advance / retreat part attached from the front side of the main body frame part of the traveling frame, the balance weight part attached from the rear side of the main body frame part, and the main body frame part A screw shaft that is disposed on the lower surface and extends in the front-rear direction of the main body frame portion, is mounted on the front side of the screw shaft, and moves in the front-rear direction of the screw shaft in conjunction with the rotation of the screw shaft. A first screw nut, a second screw nut that is mounted on the rear side of the screw shaft and moves in the front-rear direction of the screw shaft in conjunction with a rotation operation of the screw shaft, and the tip side advance / retreat portion And a first link arm portion that connects the first screw nut, and a second link arm portion that connects the balance weight portion and the second screw nut, and the tip Side advancement and retreat Lance weight unit is characterized by advance and retreat in synchronization with the rotation of the screw shaft in the longitudinal direction of the main frame portion.

  Further, in the lift device for movement of the present invention, a first movable caster disposed in the front end side advance / retreat portion, a second movable caster and a fixed caster disposed in the main body frame portion, The fixed caster is arranged between the first movable caster and the second movable caster.

  Moreover, in the lift apparatus for movement of this invention, the said suspension part has four suspension members and the pin connection mechanism pin-coupled with the said support arm part, The said suspension part is a cross shape, The said 4 The hanging members are disposed on the respective distal ends of the cross shape, and the pin coupling mechanism is disposed in the cross region of the cross shape.

  Moreover, in the lift apparatus for movement of this invention, the said support arm part is the raising / lowering arm member in which the said sliding member is formed, and the folding arm member connected with the said raising / lowering arm member and the said suspension part pin-connects. And the folding arm member is folded with respect to the elevating arm member.

  The moving lift device of the present invention includes a traveling platform, a main column provided on the traveling platform, a support arm unit that can be raised and lowered with respect to the main column, and a suspension unit disposed on the support arm unit. And the sliding member provided in the one end side of the support arm part is arrange | positioned inside the main pillar. And a supporting member also raises / lowers because a sliding member raises / lowers the inside of a main pillar via the wire arrange | positioned inside the main pillar. With this structure, the moving lift device can be appropriately deformed in size, and can be used safely even in a small area such as a home.

  Moreover, in the lift apparatus for movement of this invention, four rolling bearings are arrange | positioned at a sliding member, and when a caregiver is lifted, the load added to a main pillar can be disperse | distributed. With this structure, the plate thickness of the main pillar is prevented from becoming unnecessarily thick, and a downsized moving lift device is realized. Even in a state where the caregiver is lifted, the support arm portion can be easily lifted and lowered, and a moving lift device with excellent operability is realized.

  Moreover, in the lift apparatus for movement of this invention, with respect to the main body frame part of a traveling frame, the front end side advance / retreat part is attached from the front side, and the balance weight part is attached from the back side. The distal side advancement / retraction part and the balance weight part advance / retreat in the front / rear direction of the main body frame part in conjunction with each other by being connected to an advance / retreat mechanism disposed in the main body frame part. With this structure, the movement mode and the stop mode of the moving lift device can be set by a simple operation by the operator. And at the time of movement mode, safe driving | running | working is implement | achieved in the state which lifted the caregiver, adjusting the gravity center position of the lift apparatus for a movement. Moreover, at the time of a stop mode, a caregiver can be put in a bathtub, without changing a caregiver by retracting | retreating a front end side advance / retreat part and accommodating in a main body frame part.

  Further, in the lift apparatus for movement according to the present invention, the first movable caster is disposed at the distal side advance / retreat portion, and the second movable caster and the fixed caster are disposed at the main body frame portion. The fixed caster is disposed between the first movable caster and the second movable caster. With this structure, the moving lift device can be rotated about a fixed caster as a rotating shaft, a small turning operation is realized, and safe traveling is realized even in a narrow area such as a home.

  Moreover, in the lift apparatus for movement of this invention, a suspension part is a cross shape, and the suspension part can support four lifting members which lift a caregiver. With this structure, the moving lift device can transport the caregiver in a stable state when moving in a state where the caregiver is lifted.

  In the moving lift device of the present invention, when the moving lift device is not used, the support arm portion is folded, so that when the moving lift device is stored, the size of the moving lift device is reduced. Storability is improved.

It is the (A) perspective view for explaining the lift device for movement concerning one embodiment of the present invention, and (B) the rear view. It is the (A) side view and (B) side view for demonstrating the lift apparatus for a movement which concerns on one Embodiment of this invention. It is the (A) side view and (B) sectional view for explaining the support arm part of the lift apparatus for movement concerning one embodiment of the present invention. It is (A) side view and (B) rear view for demonstrating the raising / lowering mechanism of the lift apparatus for movement which concerns on one Embodiment of this invention. It is (A) top view, (B) side view, (C) front view for demonstrating the suspension part of the lift apparatus for movement which concerns on one Embodiment of this invention. It is a top view for demonstrating the advancing / retreating mechanism of the travel stand of the moving lift apparatus which concerns on one Embodiment of this invention. It is (A) side view, (B) top view, (C) sectional view for demonstrating the travel stand of the lift apparatus for movement which concerns on one Embodiment of this invention. It is (A) side view, (B) top view, (C) sectional view for demonstrating the balance weight part of the lift apparatus for movement which concerns on one Embodiment of this invention. It is a perspective view for demonstrating the support | pillar rotation type traveling care lift which concerns on the conventional embodiment.

  Hereinafter, a lift device for movement 1 according to an embodiment of the present invention will be described in detail with reference to the drawings. In the following description, the up-down direction indicates the height direction of the moving lift device 1, the left-right direction indicates the lateral width direction of the moving lift device 1, and the front-back direction indicates the depth direction of the moving lift device 1. The left-right direction is a direction when the moving lift device 1 is viewed from the front.

  FIG. 1A is a perspective view for explaining a schematic structure of a moving lift device 1 according to an embodiment of the present invention. FIG. 1B is a rear view for explaining a schematic structure of the moving lift device 1 according to the embodiment of the present invention.

  As shown in FIG. 1A, the lift device for movement 1 mainly includes a traveling gantry 2, a main pillar 3 disposed on the traveling gantry 2, and attached to the main pillar 3 to move up and down in the height direction. It has a support arm part 4, a suspension part 5 that is pin-connected to the distal end side of the support arm part 4, and a pair of balance weight parts 6 and 7 that are detachably attached to the traveling frame 2. The lifting member W is, for example, a sheet-like member, and belts X are disposed at four corners thereof, and are lifted in a four-point support state by the lifting part 5 via the belt X. A person can be transported.

  The traveling gantry 2 mainly has a main body frame portion 2A, a lower gantry 2B disposed on the upper surface of the main body frame portion 2A, and an upper gantry 2C disposed on the upper surface of the lower gantry 2B. Although the detailed structure will be described later with reference to FIG. 6, the main body frame portion 2A is substantially H-shaped in plan view, and a pair of front end side advancement / retraction portions 2D and 2E are detachable on the front end side of the main body frame portion 2A. Mounted on. Movable casters 2F and 2G are disposed on the lower surfaces of the distal side advancement / retraction portions 2D and 2E, and movable casters 2H and 2I and fixed casters 2J and 2K are disposed on the lower surface of the main body frame portion 2A. It is installed.

  On the other hand, a pair of balance weight portions 6 and 7 are detachably attached to the rear end side of the main body frame portion 2A. Further, for example, a door-opening / closing door 2L is disposed on the rear side of the lower gantry 2B, and the lower gantry 2B accommodates the balance weight portions 6 and 7, the lifting member W, the belt X, and the like when not in use. Storage space. Note that a winding winch 23 (see FIG. 4A), which will be described later, and the like are accommodated in the upper frame 2C.

  Since the movable casters 2F to 2I and the fixed casters 2J and 2K are arranged on the traveling base 2, the moving lift device 1 can move in a state where the caregiver is lifted. Specifically, the movable casters 2F and 2G are used as front wheels of the moving lift device 1, the movable casters 2H and 2I are used as rear wheels of the moving lift device 1, and the fixed casters 2J and 2K are movable. It is arrange | positioned between type | formula casters 2F-2I, and is used as an intermediate wheel of the lift apparatus 1 for a movement.

  The traveling frame 2 is provided with three casters 2F to 2K on the left and right sides respectively, and fixed casters 2J and 2K are arranged in the middle so that the fixed casters 2J and 2K can be moved around the rotation axis. The lift device 1 can be rotated. Then, the small turning operation of the moving lift device 1 is realized, and the convenience of the moving lift device 1 in the home is improved.

  The main column 3 is formed of, for example, a hollow square member, and the lower end side of the main column 3 is fixed to the upper mount 2C by bolt fastening or welding. And since the sliding member 4C (refer FIG. 3 (A)) of the support arm part 4 is arrange | positioned in the hollow part of the main pillar 3, and raises / lowers up and down, on the front surface of the main pillar 3, the support arm part 4 of FIG. An opening 3A is formed in the movable range.

  Although details will be described later, when the support arm unit 4 moves up and down in a state where the caregiver is lifted, a part of the sliding member 4C of the support arm unit 4 comes into contact with the inner side surface of the main column 3, thereby 3 also functions as a guide member for the support arm portion 4. The moving lift device 1 is designed so that, for example, a caregiver weighing up to 80 kg can be lifted, but the plate thickness of the main pillar 3 is not limited even if a load of 100 kg is applied to the support arm portion 4. It has a thickness that satisfies the rigidity it can withstand.

  For example, the support arm portion 4 is formed with the sliding member 4C on one end side, a substantially I-shaped lifting arm member 4A, and a folding arm member 4B connected to the other end side of the lifting arm member 4A in a folding manner. And have.

  The folding arm member 4 </ b> B is arranged in the vertical direction with respect to the main pillar 3 when the moving lift device 1 is used, and can lift the caregiver via the suspension part 5. On the other hand, as shown in FIG. 2B, the folding arm member 4B is folded horizontally with respect to the main column 3 when the moving lift device 1 is stored, so that the moving lift device 1 becomes smaller and stored. Is improved. The support arm portion 4 also has a plate thickness that satisfies the rigidity that can withstand even when a load of 100 kg is applied, like the main pillar 3 described above.

  The suspension part 5 is detachably attached to the distal end side of the folding arm member 4B. As shown in FIG. 2B, when the moving lift device 1 is stored, it may be connected to the folding arm member 4B or may be detached from the folding arm member 4B.

  The suspension part 5 has, for example, a cross shape, and two suspension rod members 5A and 5B are crossed and connected in the central region, and the suspension members 5C and 5D are connected to both ends of the suspension rod members 5A and 5B. 5E and 5F are provided. And the pin connection mechanism 5G is formed in the cross | intersection area | region of suspension rod member 5A, 5B, and the suspension part 5 is connected with the front end side of the folding arm member 4B via the pin connection mechanism 5G.

  As shown in FIG. 1B, the pair of balance weight portions 6 and 7 are detachably attached to the main body frame portion 2A of the traveling frame 2 from the rear surface of the moving lift device 1, respectively. Then, after the balance weight parts 6 and 7 are mounted on the main body frame part 2A, the balance weight parts 6 and 7 appropriately move forward and backward in the front-rear direction of the moving lift device 1. Although the details will be described later, the position of the center of gravity of the moving lift device 1 is adjusted according to the position of the balance weight portions 6 and 7, and the traveling of the moving lift device 1 is realized stably.

  As described above, the lift device for movement 1 is designed so that, for example, a caregiver weighing up to 80 kg can be lifted and moved, and the balance weight portions 6 and 7 each have a weight of about 20 kg. The weights of the balance weight portions 6 and 7 are appropriately changed in design according to the maximum suspension load of the moving lift device 1.

  The balance weights 6 and 7 have, for example, a rectangular parallelepiped shape, and are formed such that the longitudinal direction thereof is the forward / backward direction. The balance weight portions 6 and 7 are inserted and mounted in the main body frame portion 2A, and then appropriately advance and retreat in the front-rear direction of the main body frame portion 2A. The balance weight portions 6 and 7 protrude from the rear end surface of the main body frame portion 2A of the traveling gantry 2 but are elongated in the longitudinal direction. An operator who operates 1 stands and a working space is secured. The operator grips the handrail operating portions 26 and 27 of the main pillar 3 and operates the moving lift device 1.

  FIG. 2A is a side view for explaining a movement mode of the moving lift device 1 according to the embodiment of the present invention. FIG. 2B is a side view for explaining a stop mode of the moving lift device 1 according to the embodiment of the present invention. 2A shows a state when the moving lift device 1 is used, and FIG. 2B shows a state when the moving lift device 1 is stored.

  As shown in FIG. 2A, when the movement lift device 1 is in the movement mode, the distal end side advance / retreat parts 2D, 2E move forward to the front side of the main body frame part 2A and are led out from the main body frame part 2A. . On the other hand, the balance weight portions 6 and 7 are retracted to the rear side of the main body frame portion 2A and are led out from the main body frame portion 2A. Then, the moving lift device 1 travels in a state in which the front end side advancement / retraction portions 2D and 2E project forward as compared with the stop mode shown in FIG. Is improved.

  Specifically, the separation distance L1 between the movable casters 2F and 2G as the front wheels and the movable casters 2H and 2I as the rear wheels increases to 800 mm in the movement mode. Even when the moving lift device 1 moves down a 10 ° inclined surface defined by JIS, for example, the distal end side of the distal side advancement / retraction portions 2D and 2E provided with the movable casters 2F and 2G is suspended. The portion 5 projects to near the lower side of the pin coupling mechanism 5G, and the balance weights 6 and 7 also project rearward. When the moving lift device 1 moves down the inclined surface, the center of gravity moves to the front side. However, the front end side advance / retreat portions 2D and 2E project to the front end side, so that the moving lift device 1 moves forward. It is prevented from falling over.

  On the other hand, as shown in FIG. 2B, when the moving lift device 1 is in the stop mode, the balance weight portions 6 and 7 are substantially housed in the main body frame portion 2A. In the state in which the balance weight portions 6 and 7 are housed, the distal side advance / retreat portions 2D and 2E are also housed in the main body frame portion 2A, and movable casters 2F and 2G as front wheels and movable casters 2H as rear wheels. The distance L2 from 2I is 650 mm.

  That is, in the movement mode, the movable casters 2F and 2G of the distal side advancement / retraction portions 2D and 2E are projected to a maximum of 150 mm forward from the stop mode, and the moving lift device 1 including the inclined surface is provided. Stable driving is realized.

  When the moving lift device 1 is stored, the folding arm member 4B is folded so as to be parallel to the lifting arm member 4A in the state of the moving lift device 1 in the stop mode. The lifting arm member 4 </ b> A is also lowered to the lowest point with respect to the main pillar 3. With this structure, the moving lift device 1 is minimized in the front-rear direction and the up-down direction, so that it can be accommodated in the home without taking up extra space when not in use.

  Furthermore, the lift device 1 for movement has a movement mode in order to stabilize the runnability in the state where the caregiver is suspended. And when the caregiver of the said maximum suspension load is suspended and the movement lift apparatus 1 has stopped, even if it transfers to stop mode, the movement lift apparatus 1 will not fall down. Designed. Therefore, the carer is carried to the bathroom by the lift device 1 for movement, and the distal side advance / retreat portions 2D and 2E and the balance weight portions 6 and 7 are set in the stop mode state as shown in FIG. In addition, the moving lift device 1 is in a stable state. In addition, it is preferable that the movable casters 2H and 2I on the rear end side are locked through the lock mechanism 2M.

  With this structure, the front end surfaces of the front side advancement / retraction parts 2D, 2E are lowered at least 150 mm rearward from the lower side of the pin coupling mechanism 5G of the suspension part 5, and the caregiver can be bathed in the bathroom without changing the moving lift device 1. It is possible to bathe to the center side away from the side wall. And a caregiver can also extend a leg etc. in a bathtub and can take a bath in a relaxed state.

  When the movement lift device 1 is in the movement mode, usually, as shown in FIG. 2 (A), it travels with the distal end side advance / retreat portions 2D, 2E fully extended, but the front end side advance / retreat portion 2D, The length of 2E can be adjusted in the range of 150 mm as appropriate according to the situation of the floor.

  FIG. 3A is a side view for explaining the support arm portion 4 of the moving lift device 1 according to the embodiment of the present invention. FIG. 3B is a cross-sectional view for explaining the sliding member 4C of the support arm portion 4 of the moving lift device 1 according to the embodiment of the present invention. 3A shows a state in which the folding arm member 4B of the support arm portion 4 is folded along the dotted line.

  As shown in FIG. 3A, the support arm portion 4 includes a substantially I-shaped lifting arm member 4A, a folding arm member 4B disposed on the upper end side of the lifting arm member 4A, and a lifting arm member 4A. And a sliding member 4C disposed on the lower end side. A pin suspension member 4D is provided on the upper surface of the sliding member 4C, and one end side of the wire rope 8 is fixed to the pin suspension member 4D. For example, an annular portion 8A is formed on one end side of the wire rope 8 via a wire clip 9, and the annular portion 8A is fixed to the pin suspension member 4D.

  The folding arm member 4B has a substantially linear shape, and as shown in FIG. 5A to be described later, one end side of the folding arm member 4B is bifurcated into a U-shape, for example. Is arranged. And the folding arm member 4B and the raising / lowering arm member 4A are connected by the fixing pin 10, and the link mechanism for folding the folding arm member 4B suitably is formed. In addition, a connecting member 18 for detachably connecting the hanging portion 5 is disposed on the other end side of the folding arm member 4B.

  On the other hand, when the lift device for movement 1 is used, the lifting arm member 4A and the folding arm member 4B are fixed by the attaching / detaching pins 11, so that the rotation operation of the folding arm member 4B is restricted. With this structure, the folding arm member 4B can be prevented from being arbitrarily folded by the load of the caregiver when the caregiver is lifted by the support arm portion 4, and the caregiver can be transported safely. As indicated by the dotted line, when the moving lift device 1 is not in use, the folding arm member 4B is folded by removing the detachable pin 11, and the storage performance of the moving lift device 1 is improved.

  FIG. 3B is a cross-sectional view in the AA line direction shown in FIG. 3A, and as shown in the figure, the sliding member 4C is formed using a frame on one end side of the lifting arm member 4A. Two rolling bearings 14, 15, 16, and 17 are disposed on both side surfaces 12 and 13 in the left-right direction, respectively. The rolling bearings 14 to 17 are, for example, roller bearings, and are bolted to the side surfaces 12 and 13 of the hollow lifting arm member 4A.

  The rolling bearings 14 and 15 are disposed at the same height position on the upper end side of the side surfaces 12 and 13, and the rolling bearings 16 and 17 are disposed at the same height position on the lower end side of the side surfaces 12 and 13. Further, as shown in FIG. 3A, the rolling bearings 14 and 15 are arranged at the same position on the front side of the side surfaces 12 and 13, and the rolling bearings 16 and 17 are the same on the rear side of the side surfaces 12 and 13. Arranged in position.

  Next, the elevating mechanism 21 of the moving lift device 1 will be described with reference to FIGS. 4 (A) and 4 (B).

  FIG. 4A is a side view for explaining the lifting mechanism 21 of the moving lift device 1 according to the embodiment of the present invention. FIG. 4B is a rear view for explaining the elevating mechanism 21 of the moving lift device 1 according to the embodiment of the present invention. 4 (A) and 4 (B), for convenience of explanation of the internal structure of the main column 3 and the upper frame 2C, a part of the main column 3 and the upper frame 2C is omitted as appropriate. Yes.

  As shown in FIG. 4A, the main column 3 and the upper frame 2C have a hollow structure, and the internal space 22 of the main column 3 and the upper frame 2C communicates. And the raising / lowering mechanism 21 of the support arm part 4 is arrange | positioned using this internal space 22 connected.

  The elevating mechanism 21 is mainly disposed on the upper surface of the sliding member 4C disposed in the main column 3, the winding winch 23 disposed in the upper frame 2C, and the sliding member 4C. A pin suspension member 4D, a wire rope 8 having one end secured to the pin suspension member 4D and the other end secured to the take-up winch 23, and a pulley 24 disposed on the upper end inside the main column 3. And have.

  The winding winch 23 includes, for example, a drum 23A for winding the wire rope 8, a handle 23B disposed outside the upper mount 2C, a gear (not shown), and a fall prevention ratchet (not shown). And have. Then, by rotating the handle 23 </ b> B in the winding direction of the wire rope 8, the wire rope 8 is wound around the drum 23 </ b> A, and the support arm portion 4 is raised relative to the main column 3. On the other hand, by rotating the handle 23 </ b> B in the feeding direction of the wire rope 8, the wire rope 8 is fed from the drum 23 </ b> A, and the support arm portion 4 is lowered with respect to the main column 3. The support arm 4 is fixed at a desired height with respect to the main column 3 by the ratchet.

  As shown in the figure, the sliding member 4C is disposed in the internal space 22 of the main column 3 and moves up and down in the main column 3 in the vertical direction. During this elevating operation, the rolling bearings 14 and 15 are connected to the main column 3. The rolling bearings 16 and 17 are in contact with the inner surface on the rear side of the main column 3. With this structure, in particular, in the state where the caregiver is lifted, the load of the caregiver is applied to the sliding member 4C of the support arm portion 4, but the inside of the main column 3 in the front-rear direction via the rolling bearings 14 to 17 is applied. The load can be distributed to the side surfaces, and a smooth raising / lowering operation of the support arm portion 4 is realized.

  As shown in FIG. 4B, the pulley 24 is disposed near the upper end of the main column 3 and is disposed with respect to the shaft 25 disposed in the left-right direction of the main column 3. It is located at the approximate center. The wire rope 8 is suspended in the internal space 22 of the main pillar 3 via the pulley 24, and is on the rear side of the sliding member 4C, and between the rolling bearings 14 and 16 and the rolling bearings 15 and 17. It is fixed to the winding winch 23.

  Further, as shown in FIGS. 4A and 4B, a pair of handrail operation units 26 and 27 are disposed on the outer surface of the main pillar 3. A person who operates the moving lift device 1 can move the moving lift device 1 while grasping the handrail operating portions 26 and 27 and operating the moving direction of the moving lift device 1.

  FIG. 5 (A) is a top view for explaining the suspension part 5 of the moving lift device 1 according to the embodiment of the present invention. FIG. 5B is a side view for explaining the suspension part 5 of the moving lift device 1 according to the embodiment of the present invention. FIG. 5C is a front view for explaining the suspension members 5C to 5F according to the embodiment of the present invention.

  As shown in FIG. 5A, the suspending portion 5 is a member for suspending a lifting member W (see FIG. 1A) for wrapping and lifting a caregiver, and is detachable from the distal end side of the folding arm member 4B. Is attached. The suspension portion 5 has a cross shape. For example, two suspension rod members 5A and 5B having the same length are orthogonally connected, and suspension members 5C are connected to both ends of the suspension rod members 5A and 5B. 5D, 5E, and 5F are provided.

  As shown in FIG. 5 (B), the suspension rod members 5A and 5B are respectively connected at the center, and a pin connection mechanism 5G is formed at the connection portion, and a pin (shown) of the pin connection mechanism 5G is formed. The suspension part 5 is attached to and supported by the support arm part 4 by being inserted into the connecting member 18 at the tip of the folding arm member 4B.

  With this structure, the suspension portion 5 is rotatably connected to the support arm portion 4, but is less likely to swing in the front-rear direction and the left-right direction of the moving lift device 1. And although a caregiver can change a front direction easily by rotating, since the said shaking at the time of a movement is reduced significantly, the risk that a caregiver will fall from the lift apparatus 1 for a movement is large. Reduced and transported safely.

  As shown in FIG. 5C, the suspension member 5D is a trapezoidal plate member, for example, and is fixed to the tip of the suspension rod member 5A by welding. On the lower end side of the suspension member 5D, there are formed insertion holes 31 through which the four belts X (see FIG. 1A) provided on the lifting member W are inserted and held. The structure of the suspension members 5C, 5E, and 5F is the same as that of the suspension member 5D.

  With this structure, the lengths of the four belts X are adjusted so that the caregiver can be lifted in a balanced manner after the four belts X are inserted through the insertion holes 31 of the suspension members 5C to 5F, respectively. The lifting member W is lifted by four-point support. The lifting member W is supported at four locations, so that it is difficult for the lifting member W to be twisted or tilted, and the caregiver can be lifted in a stable state.

  Next, the advancing / retreating mechanism 41 of the traveling gantry 2 of the moving lift device 1 will be described with reference to FIGS.

  FIG. 6 is a top view for explaining the traveling platform 2 of the moving lift device 1 according to the embodiment of the present invention. 7 (A) to 7 (C) are views for explaining the front end side advancement / retraction portions 2D and 2E constituting the traveling gantry 2 according to the embodiment of the present invention, and FIG. 7 (A) is a side view. 7B is a top view, and FIG. 7C is a cross-sectional view in the direction of the line BB shown in FIG. 7B. FIGS. 8A to 8C are views for explaining the balance weight portions 6 and 7 constituting the traveling gantry 2 according to the embodiment of the present invention. FIG. 8A is a side view. 8B is a top view, and FIG. 8C is a cross-sectional view in the direction of the CC line shown in FIG. 8B. In FIG. 6, for convenience of explanation, the lower frame 2 </ b> B and the upper frame 2 </ b> C of the traveling frame 2 are not shown.

  As shown in FIG. 6, the main body frame portion 2A of the traveling gantry 2 is substantially H-shaped in plan view, and a pair of front end side advance / retreat portions 2D and 2E are detachably attached to the front end side of the main body frame portion 2A. A pair of balance weight portions 6 and 7 are detachably attached to the rear end side of the main body frame portion 2A. Further, on the lower surface of the main body frame portion 2A, an advancing / retreating mechanism 41 is provided for the front end side advance / retreat portions 2D, 2E and the balance weight portions 6, 7 to advance / retreat in conjunction with the front / rear direction of the main body frame portion 2A. Has been.

  The advance / retreat mechanism 41 mainly includes a screw shaft 42, a pair of bearings 43 and 44 for supporting the screw shaft 42 on the lower surface of the main body frame 2A, and a left screw disposed on the front side of the screw shaft 42. A nut 45, a right screw nut 46 disposed on the rear side of the screw shaft 42, a pair of left and right link arm portions 47, 48 that connect the left screw nut 45 and the tip side advance / retreat portions 2D, 2E; It has a pair of left and right link arm portions 49, 50 that connect the right screw nut 46 and the balance weight portions 6, 7, and a handle portion 51 disposed on the rear end side of the screw shaft 42.

  The screw shaft 42 on the front side of the bearing 43 is a left screw, and a left screw nut 45 is attached. The screw shaft 42 on the rear side of the bearing 44 is a right screw, and a right screw nut 46 is attached. With this structure, by rotating the handle portion 51 disposed on the rear end side of the screw shaft 42 clockwise, the left screw nut 45 moves backward and the right screw nut 46 moves forward. Further, by rotating the handle portion 51 counterclockwise, the left screw nut 45 moves forward and the right screw nut 46 moves backward.

  First, the link arm portion 47 is configured by pin-connecting two plates 47A and 47B, one end of which is pin-connected to the connection plate 52 of the left screw nut 45, and the other end is connected to the distal-side advance / retreat portion 2D. The plate 53 is pin-connected. Similarly, the link arm portion 48 is configured by pin-connecting two plates 48A and 48B, one end of which is pin-connected to the connection plate 54 of the left screw nut 45, and the other end is the tip-side advance / retreat portion 2E. Pins are connected to the connecting plate 55.

  Here, as shown in FIG. 7A, the tip side advance / retreat portion 2D has, for example, a rectangular parallelepiped shape, and a movable caster 2F is disposed on the lower surface of the tip side, and moves in the front-rear direction of the main body frame portion 2A. can do. Further, as shown in FIG. 7B, a connecting plate 53 is fixed to the inner side surface on the distal end side of the distal end side advance / retreat portion 2D by, for example, welding. A pin connection hole 53 </ b> A is formed at the center of the connection plate 53. As shown in FIG. 7C, for example, two connecting plates 53 are arranged in the vertical direction, and the other end side of the link arm portion 47 is inserted between them and pin-connected through the hole 53A. ing.

  The tip side advance / retreat portion 2E has the same structure as the tip side advance / retreat portion 2D. The tip side advance / retreat portion 2E includes a movable caster 2G (see FIG. 1A), a connecting plate 55 (see FIG. 6), and the like. It is formed and is pin-connected to the link arm portion 48 (see FIG. 6).

  As shown in FIG. 6, a pair of left and right connecting plates 56 and 57 are fixed to the front side of the main body frame portion 2A by, for example, welding so as to sandwich the left screw nut 45 therebetween. The plates 47A and 48A of the link arm portions 47 and 48 are pin-connected to the connecting plates 56 and 57 in the intermediate regions, respectively.

  As described above, by rotating the handle portion 51 clockwise, the left screw nut 45 moves rearward with respect to the screw shaft 42, and by rotating the handle portion 51 counterclockwise, the left screw nut. 45 moves forward with respect to the screw shaft 42. The link arm portions 47 and 48 operate in conjunction with the movement of the left screw nut 45, so that the distal side advancement / retraction portions 2D and 2E advance and retract in conjunction with the front-rear direction of the main body frame portion 2A. Specifically, the left screw nut 45 moves forward with respect to the screw shaft 42 so that the front end side advancement / retraction portions 2D and 2E move back and forth in a direction to be accommodated in the main body frame portion 2A. To do. On the other hand, the left screw nut 45 moves rearward with respect to the screw shaft 42, so that the front end side advance / retreat portions 2D and 2E advance in conjunction with each other in the direction derived from the main body frame portion 2A.

  Next, the link arm portion 49 is configured by pin-connecting two plates 49A and 49B, one end of which is pin-connected to the connection plate 58 of the right screw nut 46, and the other end is connected to the balance weight portion 6. The plate 59 is pin-connected. Similarly, the link arm portion 50 is configured by pin-connecting two plates 50A and 50B, one end of which is pin-connected to the connection plate 60 of the right screw nut 46, and the other end is connected to the balance weight portion 7. The plate 61 is pin-connected.

  Here, as shown in FIG. 8A, the balance weight portion 6 has, for example, a rectangular parallelepiped shape, and is a weight member of about 20 kg as described above. A handshake portion 6A is provided on the rear end surface of the balance weight portion 6. An operator of the moving lift device 1 can attach or remove the balance weight portion 6 to or from the main body frame portion 2A using the handshake portion 6A.

  Further, as shown in FIG. 8B, a connecting plate 59 is fixed to the inner side surface of the balance weight portion 6 on the rear end side by welding, for example. A pin connection hole 59 </ b> A is formed at the center of the connection plate 59. Then, a guide groove 6B is formed on the upper surface of the balance weight portion 6, and the balance weight portion 6 can be accurately fitted by fitting with a protrusion (not shown) formed on the main body frame portion 2A side. The main body frame 2A can be moved forward and backward.

  As shown in FIG. 8C, for example, two connecting plates 59 are arranged in the vertical direction, and the other end side of the link arm portion 49 is inserted between them and pin-connected through the hole 59A. . The balance weight portion 7 has the same structure as the balance weight portion 6. The balance weight portion 7 is formed with a handshake portion 7A (see FIG. 1B), a connecting plate 61 (see FIG. 6), and the like. The arm part 50 is pin-connected.

  As shown in FIG. 6, a pair of left and right connecting plates 62 and 63 are fixed to the rear side of the main body frame portion 2A by welding, for example, so as to sandwich the right screw nut 46 therebetween. The plates 49A and 50A of the link arm portions 49 and 50 are pin-connected to the connecting plates 62 and 63 in the intermediate regions, respectively.

  As described above, by rotating the handle portion 51 clockwise, the right screw nut 46 moves forward with respect to the screw shaft 42, and by rotating the handle portion 51 counterclockwise, the right screw nut. 46 moves rearward with respect to the screw shaft 42. As the link arm portions 49 and 50 operate in conjunction with the movement of the right screw nut 46, the balance weight portions 6 and 7 advance and retract in conjunction with the front-rear direction of the main body frame portion 2A. Specifically, the right screw nut 46 moves forward with respect to the screw shaft 42, so that the balance weights 6 and 7 are retracted in conjunction with each other in the direction leading out from the main body frame 2A. On the other hand, the right screw nut 46 moves rearward with respect to the screw shaft 42, so that the balance weight parts 6 and 7 move forward in conjunction with each other in the direction in which the balance weight parts 6 and 7 are housed in the main body frame part 2A.

  As described above, in the advancing / retreating mechanism 41 of the traveling gantry 2, by rotating the handle portion 51 clockwise, the front end side advancing / retreating portions 2 </ b> D and 2 </ b> E move forward in the direction derived from the main body frame portion 2 </ b> A, and the balance weight portion 6, 7 moves backward in conjunction with the direction derived from the main body frame 2A. On the other hand, by rotating the handle portion 51 counterclockwise, the distal side advancement / retraction portions 2D and 2E retreat in a direction of being accommodated in the main body frame portion 2A, and the balance weight portions 6 and 7 are located in the main body frame portion 2A. Move forward in the direction of storage.

  That is, by rotating the handle portion 51, the distal side advance / retreat portions 2D and 2E and the balance weight portions 6 and 7 advance and retract relative to the main body frame portion 2A. The operator of the moving lift device 1 can easily set the travel mode and the stop mode of the moving lift device 1 by rotating the handle portion 51.

  In the present embodiment, a description will be given of a case where the front end side advancement / retraction portions 2D and 2E and the balance weight portions 6 and 7 advance and retreat relative to the main body frame portion 2A by using the advance / retreat mechanism 41 of the traveling gantry 2. However, the present invention is not limited to this case. For example, the tip side advance / retreat parts 2D and 2E and the balance weight parts 6 and 7 individually advance and retreat with respect to the front-rear direction of the moving lift device 1, and set the travel mode and the stop mode of the moving lift device 1. Even if it is good. In addition, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Movement lift device 2 Traveling stand 2A Main body frame part 2D, 2E Front end side advance / retreat part 2F, 2G, 2H, 2I Movable caster 2J, 2K Fixed caster 3 Main pillar 4 Support arm part 4A Lifting arm member 4B Folding arm member 4C Sliding member 5 Suspension part 5G Pin coupling mechanism 6, 7 Balance weight part 8 Wire rope 14, 15, 16, 17 Rolling bearing 21 Lifting mechanism 23 Winding winch 24 Pulley 41 Advance / retreat mechanism 42 Screw shaft 43, 44 Bearing 45 Left Screw nut 46 Right screw nut 47, 48, 49, 50 Link arm portion 51 Handle portion

Claims (6)

A traveling platform on which a plurality of wheels are disposed;
A main pillar disposed on the traveling platform;
One end side is disposed on the inner side of the main pillar, and a support arm part capable of moving up and down with respect to the extending direction of the main pillar,
A suspension portion disposed on the other end side of the support arm portion;
A wire disposed inside the main pillar,
On one end side of the support arm portion is provided a sliding member that moves up and down the inside of the main pillar via the wire,
The wire is guided by a pulley disposed on the inner upper end side of the main pillar, one end side of the wire is fixed to the sliding member, and the other end side of the wire winds or sends out the wire. A moving lift device characterized by being fixed to a winding mechanism.   Four rolling bearings are disposed on opposite side surfaces of the sliding member in the lateral width direction, and the pair of rolling bearings disposed on the upper end side of the sliding member is configured to move the main member when the sliding member moves up and down. A pair of the rolling bearings disposed at a position in contact with the inner front surface of the column and disposed at the lower end side of the sliding member is in contact with an inner rear surface of the main column when the sliding member is raised and lowered. The lift device for movement according to claim 1, wherein the lift device is disposed at a position. A tip side advancement / retraction part attached from the front side of the main body frame part of the traveling frame;
A balance weight portion attached from the rear side of the main body frame portion;
A screw shaft disposed on the lower surface of the main body frame portion and extending in the front-rear direction of the main body frame portion;
A first screw nut mounted on the front side of the screw shaft and moving in the front-rear direction of the screw shaft in conjunction with the rotational movement of the screw shaft;
A second screw nut mounted on the rear side of the screw shaft and moving in the front-rear direction of the screw shaft in conjunction with the rotational movement of the screw shaft;
A first link arm portion that connects the tip side advancement / retraction portion and the first screw nut;
A second link arm portion that connects the balance weight portion and the second screw nut;
3. The lift for movement according to claim 1, wherein the front end side advancement / retraction portion and the balance weight portion advance / retreat in the front / rear direction of the main body frame portion in conjunction with a rotation operation of the screw shaft. apparatus. A first movable caster disposed in the front end side advancement and retraction part;
A second movable caster and a fixed caster disposed in the main body frame part,
4. The moving lift device according to claim 3, wherein the fixed caster is disposed between the first movable caster and the second movable caster.   The suspension part has four suspension members and a pin connection mechanism for pin coupling with the support arm part, the suspension part has a cross shape, and the four suspension members have a cross shape. The moving lift device according to any one of claims 1 to 4, wherein the lift device is disposed on a distal end side, and the pin coupling mechanism is disposed in the cross-shaped crossing region.   The support arm portion includes an elevating arm member on which the sliding member is formed, and a folding arm member connected to the elevating arm member and pin-connected to the hanging portion, and the folding arm member is the elevating arm. The lift device for movement according to claim 5, wherein the lift device is folded with respect to the member.

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