JP3369432B2 - Nursing elevator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a care elevator including a guide rail having an inclined rail portion, a traveling carriage that travels along the guide rail, and a boarding device suspended from the traveling carriage. Regarding the device.

[0002]

2. Description of the Related Art An elevating device for nursing care is used for elderly people with disabilities, people with disabilities, etc., to sit down on a seat of a boarding equipment or to stand up on a footrest and climb up and down stairs. Conventionally, a guide rail is often attached to a wall surface of a stairway along the slope of the stairs, and a boarding tool including a seat and a footrest is directly attached to the guide rail so as to be able to travel. However, in this type of lifting device, since the guide rail exists below the wall surface, the guide rail becomes an obstacle during normal walking or stair climbing, and the seat is positioned above the guide rail that holds the seat. The position of the seat makes it difficult to maintain the posture of the seat by the guide rails when seated on the seat. Since the center of gravity of the gear side becomes high, there is a problem that the posture is still unstable and the passengers feel uneasy.

In addition, a guide rail is disposed above a stairway, a cord-shaped body such as a wire is hung from a traveling carriage that travels along the guide rail, and a riding tool is attached to the lower end of the cord-shaped body. Is also known. In such a hanging type lifting device, the guide rail does not interfere with the operation, and since the riding equipment including the seat and the footrest are located below the guiding rail, the posture of the riding equipment can be maintained comparatively. It will be easier. However, since it is a suspension type with wires, it is inevitable that the riding equipment will sway when traveling or going up and down, and especially when riding on a footrest while standing upright There is fear,
There was room for improvement in this respect.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a nursing elevating device of the type in which a vehicle is suspended from a traveling carriage as described above, and it is possible to board the vehicle in a standing posture with respect to the vehicle.
In addition, it is possible to board in a seated position, and in any position, the shaking of the boarding equipment is minimized so that the passenger can move up and down without causing unnecessary anxiety. The purpose is to provide a lifting device.

[0005]

In order to achieve this object, according to the invention described in claim 1, an elevating frame is suspended from a traveling carriage traveling along a guide rail, and the elevating frame is suspended. Since the boarding equipment is configured to be able to move up and down along the frame, the boarding equipment has less shaking than the one in which the boarding equipment is hung with wires, etc. With a footrest, the sitting seat can be switched between a sitting posture using state and a stored state, and the sitting seat is switched to the stored state to stand up on the footrest. It is configured so that it can be switched to the use state and the rider can sit in the sitting posture and can switch to the sitting state.Therefore, it is possible to ride in one standing posture or in a sitting posture. Even less sway of boarding equipment in the case of boarding in any posture, without giving the anxiety of more than necessary to the passenger, it is possible to carry out the lifting and the running of boarding equipment. In addition, a proper seating posture detection means is installed on the seat for seating.
The appropriate seating posture detection means changes the seating posture to the boarding state.
If the proper sitting posture is not detected at
Because it is configured to stop
The safety of passengers when boarding
Proper standing posture detection means is installed on the
The proper posture detection means
If the posture is not detected, the operation of the boarding gear will be stopped.
With this configuration, the safety of passengers can be maintained even when boarding in a standing position.
All can be secured.

According to the second aspect of the present invention, the riding tool includes a standing posture gripping tool that is gripped by hand in a standing posture riding state and a sitting gripping tool that is gripped by hand in a sitting posture riding state. Since it is equipped with the gripping tool for standing posture in the standing posture, and the gripping tool for sitting in the sitting posture, it is possible to board stably, and the gripping tool for standing posture and for sitting Since the gripping tool and the operating tool for operating the riding tool are provided, it is possible to easily operate the operating tool for operating the riding tool in any riding posture,
It is possible to carry out the desired traveling and elevating.

According to the third aspect of the present invention, the boarding device includes armrests which are located in the left and right lateral directions of the seat when the seat is in the sitting posture, and the armrests are arranged in the lateral direction of the seat. Since it is configured so that it can be switched between the use state in which it is positioned and the storage state in which it is pivotally fixed upward and stored, the armrest can be used in the sitting posture, and in the standing posture,
The armrest does not get in the way. Then, since the armrest is provided with a gripping tool, the gripping tool functions as a sitting gripping tool in the use state of the armrest, and as a standing posture gripping tool in the stored state of the armrest, The structure can be simplified and the cost can be reduced by also using the grasping tool.

[0008]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a lifting device for nursing care according to the present invention will be described with reference to the drawings. This lifting device
As shown in FIG. 1, a guide rail 1 provided near a ceiling of a house, and a traveling carriage 2 that travels along the guide rail 1
2, a lifting frame 3 as a lifting frame that is hung from the traveling carriage 2, and a riding tool 4 that moves up and down along the lifting frame 3, and the like. As shown in, the seating seat 5 for seating and the footrest 6 on which the foot is placed are provided. The guide rail 1
Is a straight rail 1a and two types of curved rails 1b and 1c
It is configured by connecting as appropriate, through the entrance stairs front porch A to the entrance stairs B, the first entrance front porch C, the first entrance porch D, the first entrance entrance corridor E, and the indoor stairs F to 2 It is arranged continuously up to the corridor G on the floor. That is, across the entrance stairs B, the front entrance stairs porch A as a landing on the lower floor and the front entrance porch C, entrance porch D, and entrance corridor E as the landings upstairs, and the indoor stairs F
The front porch C, the entrance porch D, and the entrance corridor E as a landing on the downstairs, and the corridor G on the second floor as the landing upstairs are respectively arranged in succession across the floor.

The guide rails 1 are a porch A in front of the entrance stairs, a porch C in front of the entrance, a porch D in the entrance, a corridor E in the entrance E, and 2.
Above the corridor G on the floor, the straight rails 1a are horizontally arranged to form a horizontal rail portion 1A. Above the entrance stairs B and the indoor stairs F, the straight rails 1a are respectively connected to the stairs B and F. The linear rails 1a are arranged so as to be inclined along the slope to form the inclined rail portion 1B.
The space is connected to each other by a curved rail 1b curved upward and a curved rail 1c curved downward. In this embodiment, the entrance stairs B
Since the indoor stairs F and the indoor stairs F have almost the same gradient,
Both inclined rail portions 1B are arranged at substantially the same inclination angle, but when the slopes of both stairs B and F are different, it is preferable to arrange them at the inclination angles along the respective slopes.

The guide rail 1 is made of aluminum having a cross-sectional shape as shown in FIG. 8, is provided with vertically extending three-stage extending portions 7a, 7b, 7c, and the lowermost extending portion 7c. In the center of the lower surface of the rack 8, a separately configured rack 8 is provided along the guide rail 1 and is fixed to the guide rail 1 by a bolt or the like (not shown). Guide rail 1 with such a configuration
However, it is fixed to and supported by a plurality of rail support members 9 fixed to indoor walls and a rail support member 9 continuous with a pole 10 standing outdoors. Although not shown in the drawing, the entrance door H is divided into a left side door having a narrow width and a right side door having a wide width when viewed from the outside of the entrance, and is formed over both the left and right doors. The guide rail 1 is disposed in the notch, the left and right doors are double-sided, and normally only the right door is used.

As shown in FIGS. 5 to 7, the traveling trolley 2 is provided with a pair of trolley frames 11 and auxiliary frames 12 in the lateral direction thereof, with the trolley frame 11 below and the auxiliary frame 12 above. In this state, the bogie frame 11 and the auxiliary frame 12 located above and below are pivotally connected to each other by a pair of front and rear connecting links 13a and 13b, respectively.
A parallel quadruple link mechanism 14 is formed by the dolly frame 11, the auxiliary frame 12, and the pair of front and rear connecting links 13a and 13b. The parallel four-link mechanism 14 is formed separately for the left and right sides, and the left and right parallel four-link mechanisms 14 are positioned on the left and right sides of the guide rail 1.

The carriage frame 11 and the connecting links 13
a and 13b are pivotally supported by a bolt 16 so as to be rotatable relative to each other in a vertical direction with a bush 15 interposed therebetween, and the bolt 16 is provided on a side surface of the carriage frame 11 on the guide rail 1 side. A roller shaft 17 is provided coaxially with the roller shaft 17, and a free-rotating main roller 18 is rotatably attached to the roller shaft 17. Further, a pair of upper and lower guide rollers 19 are provided on the carriage frame 11. It is rotatably attached in a state of being positioned vertically. The auxiliary frame 12 and each of the connecting links 13a and 13b are also pivotally connected by a bolt 20 so as to be relatively rotatable.
At the connection point between 2 and the connection links 13a, 13b, bolt holes formed in the connection links 13a, 13b are formed in the long holes 21 along the longitudinal direction of the links 13a, 13b, whereby the auxiliary frame 12 and both connection links are formed. Thirteen
a and 13b are pivotally connected to each other with a flexibility that allows relative movement in the vertical direction, the auxiliary roller 22 is rotatably attached to the side surface of the auxiliary frame 12 on the guide rail 1 side, and the auxiliary guide roller 23 is provided. Are rotatably attached in a state of being positioned above the auxiliary roller 22.

As described above, one main roller 18 and two guide rollers 19 are provided in front of and behind the bogie frame 11 along the longitudinal direction of the guide rail 1, respectively.
8 is located between the lowermost extended portion 7c and the central extended portion 7b, contacts the upper surface of the lowermost extended portion 7c, and rotates to move the boarding gear 4 through the lifting frame 3. The guide roller 19 is configured to support the center and the lateral sides of the lowermost extending portions 7b and 7c to rotate and prevent the traveling carriage 2 from swinging in the lateral direction. Similarly, one auxiliary roller 22 and one auxiliary guide roller 23 are provided in front of and behind the auxiliary frame 12 along the longitudinal direction of the guide rail 1, and the auxiliary roller 22 is located at the central extension portion 7b. The auxiliary guide roller 23 supports the auxiliary frame 12 while rotating in contact with the upper surface, and the auxiliary guide roller 23 prevents the lateral sway of the traveling carriage 2 while rotating while contacting the lateral side surface of the uppermost extension 7a. Is configured. In other words, the traveling carriage 2 has a total of four main rollers 18 and four auxiliary rollers 22 and 8 in total.
The individual guide rollers 19 and the four auxiliary guide rollers 23 are provided in the state of being distributed right and left.

One of the pair of left and right bogie frames 11, that is, below the bogie frame 11 located on the side opposite to the wall of the house when the traveling bogie 2 is assembled to the guide rail 1, a motor is provided via a horizontal shaft 24. A holding frame 25 is rotatably attached, and a traveling electric motor 26 is mounted on the motor holding frame 25.
Is mounted and fixed such that its motor shaft extends along the front-rear direction of the traveling carriage 2, whereby the traveling electric motor 26 can rotate about the horizontal shaft 24. A transmission 27 is integrally and interlockingly connected to the traveling electric motor 26, a pinion 28 is attached to an output shaft protruding from the transmission 27, and the pinion 28 is attached to the rack 8 provided on the guide rail 1. It is configured to occlude.

A bracket 29 is attached below the carriage frame 11, and a coil spring 30 is stretched between the bracket 29 and the motor holding frame 25.
The traveling electric motor 26 on the motor holding frame 25 is elastically biased by the coil spring 30 about the horizontal shaft 24, and the pinion 28 is elastically biased by the rack 8 so as to surely engage with each other. Electric motor 26
The traveling carriage 2 is configured to be able to travel back and forth along the guide rail 1 by the rotational drive of the pinion 28 by the forward and reverse rotational drive. A bolt 31 is screwed into the bracket 29, and the abutment of the motor holding frame 25 to the tip of the bolt 31 regulates the rotation range of the traveling electric motor 26 about the horizontal shaft 24. Is configured.

The bogie frame 11 and the auxiliary frame 12
In addition to both connecting links 13a and 13b, is also pivotally connected by a frame link 32 for attaching the elevating frame 3, and the elevating frame 3 is attached below the frame link 32. That is, the pair of front and rear connecting links 13a and 13b and the bogie frame 11
At the center in the front-rear direction of the pivot point of the carriage frame 1
1 and the frame link 32 are pivotally supported by a bolt 33 so as to be rotatable relative to each other in a vertically inflexible state,
Moreover, the auxiliary frame 12 and the frame link 32 are
Bolt 35 penetrating the long hole 34 of the frame link 32
Is pivotally connected so as to be relatively rotatable in a vertically flexible state. In this way, the frame link 32 interlockingly connected to the parallel four-link mechanism 14 located on the left and right sides.
Among them, the frame link 32 on the side on which the traveling electric motor 26 is located is bent to the other frame link 32 side below the traveling electric motor 26 and fixed to each other, whereby the parallel links positioned on the left and right sides are formed. Quad link mechanism 1
4 linkages are planned.

In front of and behind the bogie frame 11, a pair of front and rear anti-sway members 36a, 3 slidable in the vertical direction.
6b are provided, inclined surfaces 37 are formed at the upper ends of the respective shaking prevention members 36a and 36b, and inclined surfaces 38 that come into contact with the inclined surfaces 37 and slide relative to each other are provided on the front and rear sides of the auxiliary frame 12. It is formed at the end of the direction. And
The shaking prevention members 36a, 36b are elastically biased upward by the springs 39a, 39b in a state where the upper limit is restricted, and the inclined surfaces 37 on the left and right sides of the shaking prevention members 36a, 36b are also positioned on the left and right. Auxiliary frame 12
It is configured to elastically contact the side inclined surface 38 and to prevent the vertical movement frame 3 from rocking against the deformation of the parallel four-link mechanism 14 due to the vertical motion of the vertical movement frame 3. There is. That is, the pair of front and rear shaking prevention members 36
a, 36b and its inclined surface 37, auxiliary frame 12 and its inclined surface 38, and springs 39a, 39b are
When the traveling vehicle 2 travels on the inclined rail portion 1B, the vertical movement of the elevating frame 2 is prevented while allowing the elevating frame 3 to incline in the front-back direction with respect to the traveling vehicle 2, and When the traveling carriage 2 travels on the horizontal rail portion 1A, a shaking prevention mechanism 40 for preventing the lifting frame 3 from shaking in the front-rear direction is configured.

One of the front and rear directions of the bogie frame 11,
That is, on the right side of the seating tool 5 of the boarding tool 4 while sitting down, the connection link 13b located on the right side is abutted,
A bolt 41 for preventing further rotation of the link 13b is screwed, and the bolt 41 maintains the vertical posture of the elevating frame 3 when traveling on the inclined rail portion 1B of the traveling carriage 2. Lifting frame 3 for the traveling carriage 2
It is configured to act as a tilt posture holding mechanism that holds the tilt posture. That is, when the elevating frame 3 inclines to the left in FIG. 6, the connecting link 13b located on the left side abuts the bolt 41, thereby preventing the elevating frame 3 from rotating further to the left. Is configured to. Similarly, the left side of the bogie frame 11 in a state where the seat seat 5 is seated, that is, the right side in FIG. 5, is brought into contact with the connecting link 13a located on the right side, and further rotation of the link 13a is prevented. A blocking bolt 42 is screwed into the bolt 42, and the bolt 42 maintains the vertical posture of the lifting frame 3 during traveling on the horizontal rail portion 1A of the traveling carriage 2. At the same time, also acts as a shake prevention mechanism 40 that prevents the lift frame 3 from swinging in the front-rear direction.

Rail end detecting limit switches 43a and 43b are attached to the front and rear of the bogie frame 11, and the limit switch 43a located on the right side while sitting on the seat 5 is as shown in FIG. By contacting the dog 44a attached near the end of the entrance stairs front porch A side of the guide rail 1, the end of the guide rail 1 on the entrance stairs front porch A side is detected and the traveling carriage 2 travels. Similarly, the limit switch 43b located on the left side detects the end of the guide rail 1 on the second floor corridor G side by contacting the dog 44b near the end on the second floor corridor G side. Then, the traveling of the traveling carriage 2 is stopped.

As shown in FIGS. 12 to 14, the elevating frame 3 is made of a hollow metal having a substantially rectangular cross section, and two reinforcing ribs 45 are integrally formed on the front side and the rear side. Tongues 46 are integrally formed from the left and right sides toward the inside, and the tongue piece 46 is integrally formed on the rear side.
Book slits 47 are formed in parallel along the longitudinal direction. At the lower end of the elevating frame 3, the rear side between the reinforcing rib 45 and both slits 47 is removed, and the portion where the reinforcing rib 45 is removed is shown in FIGS.
As shown in FIG. 1, the lifting electric motor 48 is at the insertion position. The lifting electric motor 48 has a mounting plate 49 with its motor shaft oriented in the direction along the reinforcing ribs 45 of the lifting frame 3, that is, in the direction orthogonal to the longitudinal direction of the guide rail 1. The drive sprocket 50 is mounted on the motor shaft of the drive sprocket 50 while being positioned inside the lift frame 3.

An idling sprocket 52 is attached to the inside of the upper part of the elevating frame 3 via a chain tensioner 51, and a chain 53 is wound around the idling sprocket 52 and the drive sprocket 50, and the endless thereof is provided. The connecting rod 54 is interposed in the chain 53,
An engaging member 55 having a larger diameter than the connecting rod 54 is integrally formed below the connecting rod 54. The lifting frame 3
An elevating frame 56 for connecting and holding the boarding equipment 4 is externally fitted to the
The elevating frame 56 is configured so as to enter the internal space of the elevating frame 3 through the slit 47 on the rear side in a state of enclosing the front side of the elevating frame 3 and is positioned in the inner space. The tubular body 57 is attached to the elevating frame 56, the tubular body 57 is externally fitted to the connecting rod 54, and the upper surface of the engaging member 55 becomes the lower surface of the tubular body 57 as the connecting rod 54 rises due to the rotation of the chain 53. Configured to engage.

As shown in FIG. 12, to the left and right of the elevating frame 56 portion that has entered the internal space of the elevating frame 3.
A pair of front and rear guide rollers 59, which are located between the left and right tongues 46 and the rear side and rotate in contact with the tongues 46, are provided above and below, and as shown in FIG. A pair of left and right guide rollers 60, which are located between the rear side and the rear side and are in contact with the left and right sides of the elevating frame 3 and rotate, are also provided. The engagement member 55 is engaged with the tubular body 57 by the rotation of the chain 53 by the forward / reverse rotation drive of the lifting / lowering electric motor 48, and the lifting / lowering frame 56 includes four front / rear guide rollers 59 as well as four in total. While being guided by the left and right guide rollers 60, it is configured to move up and down along the lifting frame 3. As shown in FIG. 14, a dog 62 which is in contact with a pair of upper and lower limit position detecting limit switches 61a and 61b provided on the raising and lowering frame 3 is attached to the raising and lowering frame 56. By contacting the switch 61a, the upper limit of the elevating frame 56 is detected and the ascending is stopped, and the lower limit switch 61
By contacting b, the lower limit of the elevating frame 56 is detected and the lowering is stopped.

As shown in FIGS. 2 and 3, the riding equipment 4 includes a backrest 63 and left and right armrests 64, in addition to the above-described seat 5 and footrest 6, and is located below the seat 5. The footrest 6 is attached via a connecting frame 65, and the riding tool 4 is connected and fixed to the elevating frame 56 so as to move up and down integrally with the elevating frame 56. The seat 5, the armrest 64, and the footrest 6 are all configured to be rotatable and fixed, and as shown in FIG. 4 (a), all are seated on the seat 5 by pivotally projecting forward. It is configured such that it can be switched between the posture use state and the standing posture use state in which only the footrest 6 is pivotally projected so as to ride on the footrest 6, as shown in (b) of FIG. ), The footrest 6 is also configured to be switchable to a storage state in which the footrest 6 is also rotated and retracted rearward.

Since the rocking and fixing mechanisms such as the seat 5 and the armrest 64 have the same structure, the armrest 6
The rocking fixing mechanism of No. 4 will be described. As shown in FIGS. 15 and 16, an armrest 64 is rotatably attached to a backrest 63.
A plate 67 having two engaging holes 66 is fixedly attached to the plate 67 so that the plate 67 rotates integrally with the armrest 64. On the backrest 63 side, an engagement pin 68 that is inserted into and engaged with the engagement hole 66 is slidably provided, and the engagement pin 68 is elastically attached to the plate body 67 side by a spring 69. The engaging pin 68 is urged to pull the engaging pin 68 against the elastic force of the spring 69, and the engaging pin 68 is inserted into either one of the two engaging holes 66 to rotate the projecting posture and the upward direction. It can be fixed by switching to a different storage posture.

At the left and right ends of the armrest 64,
The left and right grippers 64a, 64b for the passengers to grip with their hands are provided in a state of protruding outward, and in the state in which the armrest 64 is pivotally protruded forward, the seating gripper 64 is provided.
In the state of functioning as a and being pivotally fixed upward,
The gripping tools 64a and 64b are configured to function as the standing posture gripping tool 64b, and each gripping tool 64a, 64b is provided with an operation switch 70 as a riding tool operating tool.
Then, in a seated posture boarding state in which the user sits on the seat 5, the armrest 64 is pivotally projected forward so that the armrest 64 can be positioned in the lateral direction of the seat 5 and the arm can be placed thereon. It is possible to operate the operation switch 70 while gripping the left and right seating gripping tools 64a with a hand. Further, in the standing posture riding state in which the seat 5 is stowed and the passenger is riding on the footrest 6 in a standing posture, the armrests 64 are pivotally fixed upward so that the left and right grippers 64b are positioned at a height that is easy to grip. Since it functions as the standing posture gripping tool 64b, it is possible to easily operate the operation switch 70 while holding the same gripping tool even in the standing posture. The driving switch 70 includes, for example, a rightward switch for instructing the rider 4 to travel to the right in the seated posture, a leftward switch for instructing the rider to move to the left, and a lift switch for instructing the rider 4 to move up. Each switch is configured as a self-returning switch that is turned on to continue traveling and ascent, and is turned off to stop traveling and ascent when the switch is released.

On the left and right side surfaces of the footrest 6, there are provided obstacle detection switches 71 which are turned on when the vehicle travels along the guide rail 1 and come into contact with an obstacle to stop traveling, and below the footrest 6. If there are obstacles,
A bite prevention switch 72 is provided which detects this and stops the descending of the footrest 6. As shown in FIG. 17, this bite prevention switch 72 is composed of two switches, a first photoelectric switch 72a and a second photoelectric switch 72b, and these two photoelectric switches 72a and 72b.
Are mounted at intervals around the center of rotation of the footrest 6 with respect to the connection frame 65, and are attached to the connection frame 65. Then, the shield plate 73 is attached to the footrest 6 side, and when the footrest 6 descends and there is an obstacle below, the footrest 6 rotates upward, and the first photoelectric switch 72a detects the shield plate 73. Accordingly, an obstacle is detected to prevent the footrest 6 from descending and prevent foreign matter from being caught below the footrest 6. When both the first photoelectric switch 72a and the second photoelectric switch 72b detect the shield plate 73, the footrest 6 is in the housed state, so that the footrest 6 can be lowered.

The footrest 6 is further provided with a photoelectric distance sensor 74 for detecting the distance to the floor surface,
The lower surface of the footrest 6 is configured to stop descending of the footrest 6 when landing on the floor surface or the like. That is, since the distance sensor 74 for detecting the landing on the floor is provided in addition to the ascending / descending position detecting limit switch 61b for detecting the lower limit of the descending of the footrest 6, it is practical to lay a mat or the like on the floor. If the floor surface becomes higher, the electric motor 48 for raising and lowering is preferentially stopped based on the landing detection by the distance sensor 74, and the distance sensor 74 temporarily detects the landing for some reason. If not, the limit switch 6 for detecting the up / down position located below
It is configured to stop the lifting electric motor 48 by detecting the lower limit of 1b, and the distance sensor 74 can also detect an obstacle below the footrest 6.

As shown in FIG. 4, a pressure-sensitive tape switch 75a as a proper sitting posture detecting means for detecting the proper posture in the sitting posture and boarding state is provided inside the seated portion of the seat 5 as shown in FIG. The pressure-sensitive tape switch 75a is provided and is turned on in the seated posture and boarding state.
Unless traveling or lifting of the boarding equipment 4 is stopped, and if the pressure-sensitive tape switch 75a is turned off during traveling or lifting, the traveling or lifting is automatically stopped. Similarly, inside the footrest part of the footrest 6,
Standing posture Pressure-sensitive tape switch 7 as a proper standing posture detecting means for detecting the proper posture in the boarding state.
5b is provided, and in the standing posture riding state, the traveling or lifting is stopped unless the pressure-sensitive tape switch 75b is turned on, and when it is turned off during traveling or lifting, it is automatically configured to stop traveling or lifting. There is.

In addition, as shown in FIG. 1, a remote control switch 76 is provided on the walls of a porch A in front of the entrance stairs, a corridor E at the entrance, and a corridor G on the second floor, and the passenger's equipment 4 is desired. It is configured so that the caregiver can operate the boarding tool 4 when the vehicle is run to a location or when the passenger cannot operate the operation switch 70. In addition, the power source of the lifting device for nursing care is an AC power source for general households, and the electric motor 2 for traveling is used while paying out or winding up the cable 78 from the cable drum 77 installed on the house side.
6, the electric motor 48 for raising and lowering is supplied with electric power, but it is also possible to mount a rechargeable battery on the traveling vehicle 2 etc. and supply electric power from the battery.

In the lifting device for nursing care having such a structure, all operations are controlled by the control device H as a control means.
The control device H, as shown in FIG.
A main control unit H1 that controls the operation of the boarding gear 4 based on operation information input from, a travel control unit H2 that controls the travel operation of the traveling carriage 2, and a lift control unit that controls the vertical lifting operation of the riding tool 4. The main control unit H1, the traveling control unit H2, and the lifting control unit H3 are communicable with each other.

The operation of the lifting device by the controller H will be described. For example, when boarding from the porch A in front of the entrance stairs, the seat 5 and the armrest 64 depending on whether the passenger sits in the sitting posture or the standing posture. The footrest 6 and the like are appropriately rotated and projected to switch to a desired riding state. If the boarding equipment 4 is not on the porch A in front of the entrance stairs, operate the remote control switch 76 near the porch A in front of the entrance stairs to call the boarding equipment 4 to the porch A in front of the entrance stairs Switch to the boarding state of. And the fourth
When the passenger is seated in the sitting posture shown in (a) of the figure, the user sits down on the seat 5 and presses the lift switch of the operation switch 70 of one of the left and right seating grippers 64a to move to the fourth position.
When boarding in the standing posture shown in (b) of the figure, the right and left standing posture grippers 64b are grasped and one of the operation switch 70 is pushed. At this time, unless the user sits down on the seat 5 in the proper posture or stands in the proper posture on the footrest 6, the pressure-sensitive tape switches 75a and 75b do not turn on, and therefore the lifting electric motor 48 is not driven. If the posture is appropriate, the lifting electric motor 48 is rotationally driven.

When the electric motor 48 for raising and lowering is rotationally driven to rotate the chain 58, the engaging member 55 formed on the connecting rod 54.
Engages with the tubular body 57 on the elevating frame 56 side, and thereafter, the elevating frame 56, that is, the boarding device 4 is raised as the engaging member 55 rises, and the dog 62 attached to the elevating frame 56 moves upward. By contacting the limit switch 61a, the upper limit of the riding tool 4 is detected and the ascent is stopped. After that, when the leftward switch of the operation switch 70 is pressed, the traveling electric motor 26 is rotationally driven, and the traveling carriage 2 is moved and travels along the guide rail 1 due to the rotation of the pinion 28 engaging with the rack 8. As the traveling carriage 2 travels, the boarding gear 4 also travels integrally with the lifting frame 3. When reaching the entrance stairs B, the traveling carriage 2 travels along the inclined rail portion 1B, and the boarding gear 4 is centered around the bolt 33 that pivotally connects the frame link 32 and the carriage frame 11. Due to its own weight, it swings integrally with the lifting frame 3 to deform the parallel four-link mechanism 14, the lifting frame 3 faces the vertical direction, and the seating seat 5 and the footrest 6 maintain a horizontal posture.

At this time, the rising position of the boarding gear 4 is set by the limit switch 61a and the dog 62 so that the lower end of the footrest 6 does not come into contact with the entrance stairs B or the indoor stairs F. The seat 5 and the footrest 6 are maintained in a horizontal posture and run without contacting B or the indoor stairs F. If there is an obstacle on the entrance stairs B or the like during this traveling, the obstacle detection switch 71 provided on the footrest 6 is turned on to stop the traveling, and when the obstacle is removed, the traveling is restarted again. When getting off in the hallway E at the entrance, the leftward switch of the driving switch 70, which was being pushed when the boarding equipment 4 reached the hallway E, is released. Then, the traveling electric motor 26 is stopped, and thereafter, by pushing the lowering switch of the operation switch 70, the raising / lowering electric motor 48 is rotationally driven, and the riding equipment 4 is lowered.

At this time, if there is an obstacle below the riding tool 4, the footrest 6 swings slightly upward due to the contact with the obstacle, and the first photoelectric switch 72a of the bite prevention switch 72 causes the shield plate 73 to move. The descent of the boarding equipment 4 is stopped by detecting this, and the descent is resumed when the obstacle is removed. The photoelectric distance sensor 74 detects that the footrest 6 has landed on the floor surface, and at the same time, is lifted or lowered. The dog 62 comes into contact with the position detection limit switch 61a, stops the lifting electric motor 48, and stops the riding equipment 4. When the electric motor 48 for raising and lowering is stopped, the upper surface of the engaging member 55 formed on the connecting rod 54 is set so as to be located below the lower surface of the tubular body 57 on the raising and lowering frame 56 side by a play L1. Therefore, when the footrest 6 is securely landed on the floor surface and a mat or the like is laid on the floor surface, the lifting electric motor 48 is stopped based on the landing detection by the distance sensor 74. Therefore, the play between the engagement member 55 and the tubular body 57 is a play L2 which is slightly smaller than L1, and even in that case, the footrest 6 is surely landed on the mat.

[Other Embodiment] Another embodiment will be described below with reference to FIGS. Also in these embodiments, the seating seat 5 is provided with the proper seating posture detecting means, the footrest 6 is provided with the proper standing posture detecting means, and the seating seat 5, the armrest 64, etc. are provided with the above-described embodiment. Although the swing fixing mechanism as described in 1 above is provided, these are omitted.

In the embodiment shown in FIG. 19, the shape of the armrest 64 is different from that of the previous embodiment.
In this embodiment, the tip of the armrest 64 is
It functions as a left and right gripping tool, functions as a seating gripping tool 64a in the sitting posture shown in (a), and functions as a standing attitude gripping tool 64b in the standing posture shown in (b). An operation switch 70 is provided at 64b.

In the embodiment shown in FIG. 20, an armrest 64 is fixed to the backrest 63, and a part of the armrest 64 functions as a sitting grip 64a. The sitting grip 64a
Separately, the standing posture grippers 64b are provided on both sides of the backrest 63, and in the sitting posture, the gripping tools 64a dedicated to the sitting are gripped, and in the standing posture, the gripping tools 64b dedicated to the standing posture are gripped. The operation switches 70 can be operated.

In the embodiment shown in FIG. 21, the armrest 64 is fixed to the seat 5, and a part of the armrest 64 functions as a seating gripping tool 64a. A standing posture gripping tool 64b is fixed to the back side of the. Then, in the standing posture use state shown in (b) and (c) of FIG. 21, the standing posture gripping tool 64b on the back side of the seating sheet 5 is configured so as to be positioned at an easy-to-grip height. Tool 6
One operation switch 70 provided at the center of 4b is configured to be operated by either the left or right hand, so that the operation switch 70 can be operated by gripping the dedicated grippers 64a and 64b in any posture. Is configured.

In the embodiment shown in FIG. 22, a part of both sides of the seating sheet 5 is configured to function as a seating gripping tool 64a. In addition to the seating gripping tool 64a, a standing posture gripping tool is provided. 64b is provided on the upper part of the backrest 63, and one operation switch 70 is provided at the center of the holding tool 64b for standing posture so that it can be operated by either left or right hand.

In the above embodiment, the operation switch 70 having the rightward and leftward switches and the up and down switches is shown, but only the rightward and leftward switches are provided. Pushing the switch to the right automatically raises it to the right, then descends automatically, and pushing the switch to the left automatically raises it to the left, After that, it can also be configured to descend automatically. Further, the proper sitting posture detecting means 75a and the proper standing posture detecting means 75b are not limited to the pressure-sensitive type as in the previous embodiment, but may be, for example,
Various changes can be made, such as a photoelectric system including a light emitting device and a light receiving device.

[Brief description of drawings]

FIG. 1 Schematic overall view of a lifting device for nursing care

FIG. 2 is a perspective view of the traveling carriage and the boarding gear.

[Fig. 3] Front view of traveling carriage and boarding equipment

FIG. 4 is a side view showing a switching state of the riding equipment.

[Fig. 5] Front view of the traveling carriage

FIG. 6 is a front view of the traveling carriage.

[Fig. 7] Cross-sectional view of traveling carriage

FIG. 8 is a sectional view of the guide rail.

FIG. 9 is a view showing a limit switch for detecting the end of the rail and a dog.

FIG. 10 is a front view showing the inside of the lifting frame.

FIG. 11 is a front view showing the inside of the lifting frame.

FIG. 12 is a sectional view of a lifting frame.

FIG. 13 is a cross-sectional view of a lifting frame.

FIG. 14 is a sectional view of the lifting frame.

FIG. 15 is a sectional view showing a swing fixing mechanism of an armrest.

FIG. 16 is a view showing the operation of the swing fixing mechanism of the armrest.

FIG. 17 is a diagram showing an obstacle detection switch.

FIG. 18 is a block diagram showing a control device.

FIG. 19 is a diagram showing a riding tool of another embodiment.

FIG. 20 is a view showing a riding tool of another embodiment.

FIG. 21 is a view showing a riding tool of another embodiment.

FIG. 22 is a view showing a riding tool of another embodiment.

[Explanation of symbols]

1 Guide rail 1B inclined rail part 2 traveling carriage 3 Lifting frame 4 boarding equipment 5 Seat 6 footrest 64 Armrest 64a Sitting gripping tool 64b Standing grip 70 Operation switch 75a Proper sitting posture detecting means 75b Appropriate standing posture detection means

─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) A61G 7/10 B66B 9/08

Claims (3)

(57) [Claims] 1. A guide rail having an inclined rail portion,
A traveling lifting vehicle that travels along the guide rail, and a lifting device for nursing care that includes a boarding device that is hung downward from the traveling vehicle, wherein a lifting frame is hung downward from the traveling vehicle. The riding tool is configured to be able to move up and down along the lifting frame, and a seating seat on which the passenger sits and a footrest on which the passenger rests his foot are provided, and the sitting seat is in a sitting posture in use state. It is possible to switch between the seated seat and the stored state, and switch the seated seat to the stored state to ride in a standing posture on the footrest. Standing posture riding state and switching the sitting seat to the sitting posture used state and riding in the sitting posture seating posture boarding and configured to be capable of switching state and, provided the proper seating posture detection means to the seating sheet to its
The proper sitting posture detection means is suitable for the sitting posture and boarding state.
If the normal seating posture is not detected, the operation of the riding equipment will be stopped.
And a proper standing posture on the footrest
A force detecting means is provided, and the proper standing posture detecting means is
If the proper standing posture is not detected in the posture boarding state,
A nursing lifting device configured to stop the operation of the boarding equipment . 2. The standing tool comprises: a standing posture gripping tool that is gripped by hand in a standing posture riding state; and a sitting gripping tool that is gripped by hand in a sitting posture riding state; The lifting device for nursing care according to claim 1, wherein an operating tool for operating a riding tool is provided on the sitting grip. 3. The riding equipment includes armrests positioned laterally and laterally of the seat when the seating seat is used in the sitting posture. The armrests are positioned laterally of the seat and are rotated upward. The armrest is provided with a gripping tool that is gripped by hand, and the gripping tool functions as the seating gripping tool when the armrest is in use. The elevating / lowering device for care according to claim 2, wherein the elevating / lowering device for care is configured to function as the holding tool for the standing posture in the stored state.