JPH0149493B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention allows a person with a physical disability who is unable to move by themselves to easily transfer the person on the bed with a single attendant. This invention relates to a mobile vehicle for persons with disabilities that is a mobile vehicle and is capable of changing the posture of a wheelchair.

To explain in more detail, the backrest and waist support frames are installed on the left and right sides of the low-height vehicle platform that can move forward and backward, left and right, and can get under the bed. A pedestal is provided which is divided into three sections with the receiving part, and this pedestal can be placed in a substantially horizontal state and a bent chair position. Winding and unwinding are performed at the same time by means of a winding shaft that can rotate, whether the shaft is rotated in the forward direction or in the reverse direction. It constitutes a movable moving seat that moves from above to the side opposite to the support frame and is positioned on the top surface of the bed, and uses this moving seat to transfer the physically disabled person sleeping on the bed onto the cradle, and then This relates to a mobile vehicle for persons with disabilities that can be moved freely in a chair position by bending a pedestal.

In such a mobile vehicle for persons with disabilities, the mobile seat on the pedestal is placed on the top of the bed, and while the person with a disability turns over, the caregiver places the mobile seat on the back side and rotates the winding shaft. When the movable seat is transferred to a roughly horizontal pedestal via a belt-shaped body and then the pedestal is brought into contact with the movable seat in a chair position, the backrest of the movable seat may slip off and cause injury to the disabled person. Disadvantages arise that cause discomfort. The present invention aims to eliminate this drawback, and includes a slippage prevention device interposed between the movable seat and the back support portion of the pedestal.

To explain in detail one embodiment of the present invention, reference numeral 1 denotes a vehicle chassis, and as shown in FIG. The horizontal frame 2 and the rear horizontal frame 4 are integrally fixed, and a protruding frame 5 is provided on the left side of the vertical frame 3 near the rear side.
are attached to form a frame, and caster-type front wheels 6, 6 that are rotatable around a vertical axis are attached to the lower left and right ends of the front horizontal frame 2, and the left and right ends of the rear horizontal frame 4 are attached to Rear wheels 9, 9 are attached via wheel mounting brackets 8 that rotate around the vertical shaft 7, and these rear wheels 9, 9 rotate to brackets 10 fixed to the vertical frame 3. Both ends of a balance frame 12, whose center is rotatably attached via a freely provided pin 11, are connected to each other via a rod 13 and an arm 14, and are further connected to a metal 15 fixed to the pin 11. Operation lever 16 mounted so that it can rotate up and down
The rear wheels 9, 9 are configured to be able to change direction to the state shown in FIG. 15 or 16. In addition, 17 is a locking frame of the lever 16, 18 is a molded metal fitting fixed to the lever 16, and this metal fitting 18 connects the rear wheel 9 to the 16th
When the left rear wheel 9 is changed as shown in the figure, the left rear wheel 9 is sandwiched from above when the left rear wheel 9 is changed as shown in FIG. 16, and its rotation can be prevented.

Reference numeral 19 denotes a support frame, which in the illustrated example consists of a front support frame 19a and a rear support frame 19b made of iron pipes.
9a is on the left end of the front horizontal frame 2, and also on the rear support frame 1.
9b is rotatably provided on the left end of the protruding frame 5 via pins 20, 20 facing in the front-rear direction, respectively, from an upright state to a state in which it is tilted downward to the right at a certain angle. Reference numerals 21 and 21 are links that connect rocking bodies 23 and 23, which are pivotally connected to the vertical frame 3 via brackets 22 and 22 with pins in the front and rear directions, and the front and rear support frames 19a and 19b. It is something. Reference numeral 24 is a pedal rod, which is connected to the front and rear rocking bodies 23,
23 is connected to each other in a loop shape, and is provided so as to protrude slightly to the left side of the supporting frame 19 when viewed from the rear. When this pedal lever 24 is stepped on, the supporting frame 19 stands upright, and when the pedal lever 24 is released, the pedal lever 24 is stepped on. It is set up so that it can fall to the left.

25 is a stopper pedal, which is attached to the bracket 2.
2 and 22, and is provided in a loop shape like the pedal rod 24, and is provided with a locking protrusion 26 for locking the swinging body 23, and the support frame 1
When the stopper pedal 9 is placed upright, the locking protrusion 26 locks on the swinging body 23 so that the upright state is maintained, and when the stopper pedal 25 is depressed, this comes off and the support frame 19
is provided so that it can be tilted.

Reference numeral 27 denotes a spring that is resiliently held so as to lift the stopper pedal 25.

28 is an adjustable support frame that can be adjusted up and down, and the front support frame 1
A pipe 28a inserted into the adjustment support frame 28 and a pipe 28b inserted into the rear support frame 19b are connected by a connecting frame 28c, and a knob-equipped bolt 2 is attached to the fittings fixed to the pipes 28a and 28b of the adjustment support frame 28.
9 is structured so that it can be screwed into any of the screw holes 30, 30, . There is.

Reference numeral 31 denotes a pedestal, which is divided into a back holder 31a, a waist holder 31b, and a leg holder 31c. and,
These are installed as follows.

First, the waist support portion 31b is composed of an iron pipe that is U-shaped in plan view, and its front free end is a front support shaft integrally provided on the left side of the pipe 28a of the adjustment support frame 28. The rear free end is inserted through the upper part of the rear support frame 19b and attached to the vertically movable cylinder 33 via a bracket 34 which is shaped like It is inserted through the rear support shaft 35, and there is some play in the insertion state, and the right end of the pipe forming the waist receiving part 31b is thinly pressed and deformed vertically.
The cylindrical body 33 is provided so that it can freely move up and down. Reference numeral 36 denotes a fan-shaped bracket, which is integrally fixed to the cylindrical body 33, and has locking recesses a, a, . . . formed in its arcuate end surface.

The back support part 31a is an iron pipe and has a loop shape in plan view, and its left side frame part protrudes forward, and this part is pivotally attached to the right side surface of the fan-shaped bracket 36 by a pin 37. 37 and the rear support shaft 35 are provided so as to be coaxial.

The right end pipe of the back support portion 31a is also thinly pressed and deformed vertically.

The leg receiving portion 31c is also made of iron pipe and has a rectangular loop shape in plan view, and is rotatably provided on the waist receiving portion 31b via ring fittings 38, 38.

Reference numeral 39 denotes an interlocking mechanism, which pivotally connects a protruding piece 40 attached to the lower part of the leg receiving part 31c and a "shaped protruding piece 41 attached to the lower side of the back receiving part 31a via a rod 42, Furthermore, the pipe 28b of the adjustment support frame 28 and the projection piece 40 are pivotally connected by a link 43, and when the back support part 31a is pushed upward and forward and rotated, the cylinder body 33 is moved downward. While being moved, the leg receiving portion 31c is further rotated rearward and downward.

Reference numeral 44 denotes a lever that is attached to the left side pipe of the back support portion 31a, and is inserted into the locking recesses a, a of the fan-shaped bracket 36 via a rod inserted into this pipe.
This actuates a pawl 45 that engages and disengages from the locking recess 31. The pawl 45 is configured to be always engaged and held in the locking recess a by a spring, and when the pawl 45 is removed with the lever 44, the
The structure is such that a can rotate freely.

As described above, the pedestal 31 is provided so as to be changeable between an approximately horizontal unfolded position and a bent position in which it can be bent into a chair state.

46, 46, . . . are ⊃-shaped frames around which a belt-like body, which will be described later, is wound, and are fixed to the inside of the right end pipe of the back support part 31a and waist support part 31b with a gap b in which the belt-like body is wound around. There is. Reference numerals 47, 47, . . . are mat support frames, which are fixed at appropriate positions on the left-side frame portions of the back support portion 31a and waist support portion 31b.
Clip fittings 48, 48... are fixed to each of the clips 47.... The clip fitting 48 has a ring 48b made of a spring material attached to the top of a pin 48a whose base is fixed in an upright position on a receiving frame 47, eccentrically in the vertical and horizontal directions.
8b can be rotated up and down and can be biased downward.

49a and 49b are back support mats and waist support mats that are sized to fit inside the back support part 31a and waist support part 31b, respectively, and to be supported by the ⊃-shaped frame 46 and the mat support frame 47. Yes, each one is removable. Reference numeral 50 indicates a metal fitting surrounding the outer periphery of the mat, and reference numeral 51 indicates a spring for the cushion.

In addition, the ring 48 of the clip fittings 48, 48
b is for pressing and holding the left end sides of the mats 49a and 49b.

Reference numeral 52 denotes a flexible cylindrical cover made of vinyl chloride, polyethylene, etc. that encloses and connects both the back support mat 49a and the waist support mat 49b, and both mats 49a and 49b are connected to the cylindrical shape. They are connected by a cover 52.

Reference numeral 53 denotes a vertical axis, which is divided into a back support side vertical axis 53a and a waist support side vertical axis 53b.
is rotatably supported by the left pipe itself of the back support part 31a and brackets 54, 55 attached thereto, while the vertical shaft 53b on the waist support part side is supported by brackets 56, 57 fixed to the front and rear pipes of the waist support part 31b. It is rotatably supported on a bearing, and its rear end protrudes rearward through a hole drilled in the shaped bracket 34.The front end of the back support side vertical shaft 53a and the waist support side vertical axis 53b are connected via a universal joint 58 which can be bent freely.The bending position of this universal joint 58 is the rear support shaft 35.
and the pin 37. 59,
Reference numerals 60, 61, and 62 are large diameter take-up rolls fixed locally on the vertical shaft 44, and as shown in FIGS. A metal fitting 63 is provided for attaching the base of the strip.

Reference numeral 64 denotes a winding handle, a crankshaft is rotatably supported on the back support 31a, and a pair of bevel gears are engaged between the tip of the crankshaft and the back support side vertical shaft 53a. The vertical shaft 53 is configured to be rotatable by the winding handle 64.

Reference numeral 65 denotes a movable sheet, which is laid on the mats 49a and 49b of the back support portion 31a and waist support portion 31b, and has the large diameter take-up roll portion 5 on the lower surface of its left end side.
9, 60, 61, and 62, band-like bodies (strings may be used) 66a and 66, which are arranged in parallel at various locations, and are wound in reverse by inserting ring-shaped partial holes through the metal fittings 63.
b, 67a, 67b, 68a, 68b, 69a,
The free end of 69b is connected to the wrapping band 66 on one side.
a, 67a, 68a, 69a are directly pulled out and fixed to the upper surface of the mat, and the other wrapping bands 66b, 6
7b, 68b, and 69b are pulled out from the back side of the mat, bypassing the mat, and fixed on the top surface.

Therefore, the vertical shaft 53 is
The moving seat 65 is provided so as to move in the left and right directions when rotated forward or reverse.

Reference numeral 70 denotes a leg receiving sheet fixed to the leg receiving portion 31c.

Reference numeral 71 denotes a leg holder frame, which is foldably attached to the pipe on the distal end side of the leg holder 31c.

Reference numeral 72 denotes a left armrest, which is set by being inserted into the upper end of the front side pipe 28a of the adjustment support frame 28 and is set at the upper part of a support pipe 73 which is approximately T-shaped in side view, and an integral part extending rearward from this support pipe 73. It is attached via a frame 74.

Reference numeral 75 denotes a right armrest, which is attached to the longitudinal rod of the pipe support frame 76 which has a "shaped" shape when seen in plan view, and the free end side of the short rod is inserted into the front part of the T-shaped support pipe 73, and is installed by appropriate means. The right armrest 75 is prevented from slipping out and rotating, and the right armrest 75 can be freely attached and detached or rotated.

Reference numeral 77 indicates a receiving piece for receiving the short side rod portion of the pipe support frame 76, and 78 indicates a stopper piece fixed to the short side rod portion of the pipe support frame 76. By engaging these pieces 77 and 78, the right armrest is fixed. The rightward downward rotation of 75 is restricted.

Reference numeral 79 denotes a slippage prevention device for the movable seat 65, and in the illustrated example, one end of the string 80 is fixed to the left and right intermediate portions of the head side frame H of the back support portion 31a, and the other end of the string 80 is connected to the back support on the left side of the movable seat 65. When the moving seat 65 moves from side to side, it does not move in a fan-like manner and become a movement resistance of the moving seat 65, and the pedestal 31 is bent into a chair state. In such a case, the movable seat 65 is configured to prevent the movable seat 65 from shifting inadvertently toward the waist support portion 31b in the vertical direction.

Next, to explain the effect of the above example, first,
As shown in Figures 1, 5, and 11, the support frame 1
9 is in the upright position, remove the pawl 45 from the engagement recess a of the bracket 36 using the lever 44, and remove the pedestal 31.
Back support part 31a, waist support part 31b and leg support part 31c
is brought into an expanded, substantially horizontal state, and the pawl 45 is again engaged with the engaging recess a to maintain the expanded state. Furthermore, the right armrest is rotated as shown in Figure 1. Furthermore, after placing the mobile vehicle of the present invention next to bed 81 where a disabled person who cannot move is sleeping, as shown in Fig. 11,
Adjust the adjustment support frame 28 up and down by operating the bolts 29 with knobs 29, 29 according to the height of the frame 1,
The back surface of the cradle 31 is set to be slightly higher than the top surface of the bed 81.

Next, when the vehicle platform 1 is pushed under the bed 81 from the right side of the vehicle platform, the pedestal 31 moves so as to skim the top surface of the bed 81. At this time, the pedestal 31
is approximately 1/1/2 of the horizontal width of bed 81 from the left side.
Located on the upper surface of 2 or more. In addition, at this time, the rear wheels 9,
9 operates the lever 16 to bring it to the plane C state shown in FIG. 16, and applies the brakes to prevent it from rolling horizontally. In this state, Person A with a disability is placed in the first
It is best to turn your body over as shown by the imaginary line in Figure 2.

Then, when the stopper pedal 25 is depressed, the locking protrusion 26 is disengaged from the swinging body 23, and as a result, the support frame 19 is tilted as shown in FIG. The side contacts the upper surface of the bed 81. Another method is to place disabled person A in the
1 may be left as it is, and the pedestal 28 may be tilted to slightly intrude into the lower surface of the person with a disability A.

In other words, in any case, the attendant who is the pilot,
The person with a disability on the bed is turned over to the right side of the bed as shown by the imaginary line in FIG. 68a, 69a
Rewind the winding bands 66b, 67b, 68b,
Wind up 69b.

Although this operation may seem difficult for one person to perform, the movable sheet 65 is made of synthetic resin or rubber and can be bent like a slightly stiff cloth, so it can be used to turn and turn a sleeping disabled person. It is preferable to leave the movable sheet 65 in a state where it is moved (in reality, the movable sheet 65 will be in a state where it is bent when it bumps into the person with a disability), and then turn over and place the movable sheet 65 on the bed.

In this way, after the movable sheet 65 is laid on the back side of the person in the tossing and turning state, the person is released from the tossing and turning state, and the head, back, and waist of the disabled person are placed on the movable sheet 65. Since the legs are not so heavy, one foot at a time is placed on the leg receiver 31c in advance.

Next, when the winding handle 64 is rotated in the opposite direction to that described above, the winding bands 66a, 67a, 68a, and 69a are wound up as shown in FIG. The handicapped person A who is placed on the pedestal 31 is moved without difficulty while lying on the pedestal 31. Since the back surface of the movable seat 65 slides on the slippery cylindrical cover 52, the load of the disabled person can be moved without difficulty.
Subsequently, the pedal lever 24 is depressed to operate the supporting frame 19 to an upright position as shown in FIG. 14, and to operate the pedestal 31 to a horizontal position. Then, bed 8
The pedestal 31 rises slightly from the upper surface of 1. In this state, restore the right armrest 75 to its original state,
After operating the lever 16 to release the brakes on the rear wheels 9, 9 and changing the direction of the rear wheels, the vehicle chassis 1 is slowly pulled out from the bottom of the bed 81. At this time,
The cradle 31 on which the disabled person A is placed also comes off the bed 81.

Next, when the lever 44 is used to remove the claw 45 from the locking recess a of the fan-shaped bracket 36 and push up the back support part 31a, the cylinder body 33 moves downward and at the same time the leg support part 31c is bent backward and downward, and the disabled person A is automatically changed to a chair-resting position.

At this time, the portion of the movable seat 65 corresponding to the back support portion 31a tries to slip downward, but the string 80 of the slip prevention device 79 prevents this.
The movable sheet 65 does not slip down significantly.

In addition, in order to return the disabled person A on the moving vehicle to the bed 81, he can be easily returned to the original bed 81 by performing the reverse operation as described above, but at this time, the moving seat 65 may shift back and forth. Therefore, the belt-like bodies 66b, 67b, 68b, and 69b are reliably wound up, and the movable sheet 65 can be accurately transported with the disabled person A placed on the bed 81.

As described above, since this invention has the above-mentioned structure, even a single attendant can pick up a physically disabled person who is lying on a bed and is unable to move. When this movable seat for transporting a physically handicapped person is placed in a chair position, the backrest part of the movable seat can be prevented from shifting downwards, and this prevents the movable seat from sliding downward when the handicapped person is placed back on the bed. It has the effect of being able to be accurately replaced without being deformed and transferred onto the bed.

The displacement prevention device 79 of the embodiment has a structure in which the movable sheet 65 is suspended from the head side frame H of the back support portion 31a with a string 80, but as shown in FIGS. A structure in which a guide rail 82 such as a guide string or a guide rod stretched in the horizontal direction is attached to the upper side, and a guide ring 83 provided on the lower surface of the left end side of the moving seat 65 is inserted, or any other suitable structure is used. Of course, it is okay to do so.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIGS. 1 and 2 are overall perspective views, and FIGS. 3 and 4.
The figures are a side sectional view and a plan view of the undercarriage, Figures 5 and 6 are side views of the main parts, Figure 7 is a plan view of the main parts, Figure 8 is a back sectional view of the main parts, and Figure 9. , Fig. 10 is a slope view of the main part and its sectional view, Figs. 11 to 14 are simplified back sectional views for explaining the operation, and Fig. 15 is a sectional view of the main part.
16 and 16 are explanatory views of the operation of the undercarriage, FIG. 17 is a side view of the main part of another example, and FIG. 18 is a plan view thereof. Symbols in the figure: 1 is the chassis, 19 is the support frame, 31 is the pedestal, 31a is the back support, 31b is the waist support, 31c is the leg support, 53 is the vertical axis, 65 is the movable seat, 66
a, 66b, 67a, 67b, 68a, 68b,
Reference numerals 69a and 69b are respectively band-shaped bodies, 79 is a slippage prevention device, and 81 is a bed.

[Claims]

1 In a wheelchair equipped with a frame that extends and contracts in the longitudinal direction and a stop device when the frame is shortened, there is a front pipe, an armrest that has an upwardly bendable node in the middle part, and a frame that has an upper half part that extends backwards in the middle part. Back pipe with downward bendable nodes,
and four members of a seat pipe, or parts equivalent to these, and a stopper is provided at the front end of the armrest to the upper end of the front pipe to prevent the node of the intermediate part from lowering below a predetermined height. When the wheelchair is shortened forward and backward by pivoting the rear end of the armrest to the upper half of the back pipe and pivoting the rear end of the seat pipe to the back pipe, The frame can be shortened by folding the rear half of the armrest, the upper half of the back pipe, and the seat pipe downward to the rear of the frame, and by providing a device that holds the upper half of the back pipe in the folded state. A folding mechanism for a wheelchair that maintains its state. 2. A straight line connecting the node at the middle part of the armrest and the pivot point at the rear end connects the node at the middle part of the back pipe, the node at the middle part of the armrest, the pivot point at the rear end, and the middle of the back pipe. The upper half of the back pipe approaches a range within which it does not begin to expand even if a force is applied in a direction that causes the frame to expand forward and backward, in combination with the frictional force of the nodes of the back pipe, or passes through this range and folds. When shortening the frame