JP2001120602A - Wheelchair for nursing care to which monocycle is connected - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a wheelchair for nursing care reducing the labor of a caretaker attending a wheelchair for nursing care used in a hospital or nursing facilities and capable of rapidly corresponding even at a time of emergency. SOLUTION: In a wheelchair, to which a monocycle is connected, capable of corresponding even at a time of emergency, a detachable foldable or fixed link mechanism equipped with a connection mechanism is inserted in and fitted to the rear frame of a wheelchair for helping and a foot operated monocycle is connected to the link mechanism through the foldable or fixed connection shaft connected to the connection mechanism to constitute a mechanism for transmitting the rotation of foot operated pedals to wheels through a stepless transmission and, if necessary, a placing part of a relief equipment such as an oxygen cylinder or a drip device is added to the link mechanism. A helper can move this wheelchair for helping at a proper speed while takes the correspondence fitted to a state of a person to be cared with bicycle sensation and the labor of the caretaker later is also reduced. At a time of non-use, the wheelchair can be housed in a folded state along with the monocycle and the wheelchair and the monocycle can be also housed in a separated state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a wheelchair for a caregiver used by a caregiver or an assistant used in a hospital or a nursing facility. Specifically, instead of the caregiver pushing the wheelchair for the caregiver, a unicycle driven by a foot pedal is connected to the rear of the wheelchair for the caregiver, and the wheelchair operated by the caregiver using the foot pedal (hereinafter referred to as a wheelchair). It is related to the improvement of.

[0002]

2. Description of the Related Art Conventionally, many wheelchairs used indoors and outdoors by patients and elderly persons undergoing treatment are often pushed by a caregiver. In particular, for outdoor use, there are many cases where a caregiver pushes and uses a general road. As a wheelchair used by such a caregiver, a wheelchair assisted driving device operated by the caregiver has been proposed. For example,
Just by the caregiver pushing the handle of the auxiliary drive unit connected to the back of the wheelchair, the device that automatically synchronizes the car according to the walking speed of the caregiver regardless of the road surface and controls the motor to drive the rubber tires Japanese Unexamined Patent Publication No. Hei 8-266574 discloses a two-wheel or three-wheel bicycle, a bicycle with auxiliary power, or a scooter or a motorcycle which is connected to a front portion of a wheelchair with a connecting device having locking means and is towed. 9
Japanese Patent Application Laid-Open No. 56750/1990 and Japanese Utility Model Application Laid-Open No. 2-83185 / 1992.

[0003]

However, the conventionally proposed wheelchair assisting device, which adds an electric drive device to the rear of the wheelchair, requires high cost for equipment and maintenance. Due to the lack of freedom of retreat and rotation, and the structure of the wheelchair for bicycles and bicycles with auxiliary power, or those towed by scooters and motorcycles,
There is a problem with the use strength and durability, and not only is it expected to be dangerous when used on general roads, but there is also the danger that observing the care recipient on a wheelchair will be neglected. There are many issues such as having.

An object of the present invention is to reduce the labor of a caregiver or attendant pushing a wheelchair when taking a patient or an elderly person out of a wheelchair at a hospital or a nursing home, or when going to a hospital. In other words, by using a unicycle connected to the rear of the wheelchair used by the patient, it is possible to easily pass through narrow passages while watching the patient, easy to move forward and backward, and It is an object of the present invention to provide a convenient wheelchair which can be separated from a wheelchair and a unicycle, loaded on a trunk of the vehicle, or the like, and then easily assembled and used there. Furthermore, in hospitals and indoors, it is possible to separate the wheelchair at the rear of the wheelchair and use it as a normal wheelchair, and separate the wheelchair and the unicycle when not in use, or fold it with the unicycle attached and store or store it even in a narrow place. To provide a wheelchair that can be used.

Another object of the present invention is to provide a rescue facility such as an oxygen cylinder or a drip device and a coupling mechanism so that the rescue facility can be used to transport an injured person in a disaster. The detachable link mechanism can be inserted into the rear frame of the wheelchair to take care of the injured, etc., and to transport to the hospital etc. as quickly as possible by passing the shortest distance even in narrow alleys where cars can not pass freely. It is an object of the present invention to provide a wheelchair that can be used in an emergency such as transport to a treatment room.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a detachable folding or fixed link mechanism provided with a coupling mechanism is inserted into a rear frame of a wheelchair for nursing care, and the folding coupling shaft is coupled to the coupling mechanism. Alternatively, there is provided a wheelchair for nursing care to which a unicycle is connected, wherein a unicycle driven by a foot pedal is connected via a fixed connecting shaft.

Further, the present invention provides a nursing care system combined with a unicycle, wherein the driving of the unicycle is a mechanism for transmitting a forward rotation or a reverse rotation to the wheels via a continuously variable transmission mechanism. Wheelchair.

[0008] The present invention also provides a nursing wheelchair combined with a unicycle, characterized in that a brake mechanism used by a caregiver is added to the nursing wheelchair or / and the unicycle. is there.

Further, the present invention provides a unicycle characterized in that a portion for mounting rescue equipment such as an oxygen cylinder and a drip device is added to a detachable link mechanism having a coupling mechanism on the rear frame of the wheelchair for care. A combined care wheelchair.

That is, the wheelchair used in the present invention is a wheelchair generally used in hospitals, nursing homes, and the like.
On the other hand, the unicycle connected to the wheelchair may be a commercially available unicycle as it is, but for example, by changing a part of the structure and specifications such as adding a transmission mechanism, the required strength, durability and convenience of the unicycle It can be manufactured at low cost by using it while maintaining its properties.

One of the features of the wheelchair in which the unicycle of the present invention is combined is in the coupling mechanism between the wheelchair and the unicycle, which can be easily attached to and detached from the monocycle without changing the basic specifications and characteristics of the wheelchair. The configuration ensures both operability and safety. That is, a detachable link mechanism having a coupling mechanism for coupling the coupling shaft with the unicycle is inserted into the rear frame of the wheelchair, and the axis of the unicycle is connected to the coupling mechanism of the folding system or the fixed coupling shaft coupled to the coupling mechanism. Combine with the department.
This connecting shaft makes it easy to change the progression of the wheelchair in the left and right direction by connecting one or both of the connecting mechanism of the connecting mechanism and the connecting part of the unicycle shaft to the left and right, and running with small turning Can be. In addition, this link mechanism can be selectively used, as needed, between a mechanism that can be folded while being connected to a wheelchair and a fixed mechanism having a rescue equipment mounting portion.

Another feature of the wheelchair combined with the unicycle of the present invention is the operability of the unicycle operated by the caregiver or attendant, and a mechanism for minimizing the fatigue of the unicycle operator. And In other words, it is preferable that the mechanism transmit the rotation of the pedal of the unicycle to the wheels via the transmission. The continuously variable transmission mechanism (planetary gear system, disk system, planetary gear / disk combination system) is a transmission incorporated in a limited-sized axle of a unicycle.好 ま し い It is preferable because the medium speed can be easily adjusted.

[0013]

A detachable link mechanism having a coupling mechanism for coupling the unicycle fixed shaft is inserted into the rear frame of the wheelchair, and the unicycle shaft is connected to the coupling mechanism of the folding type or the fixed coupling shaft coupled to the coupling mechanism. The wheelchair and the unicycle are integrated with each other and can be used like a bicycle. By using a unicycle, the rotation of the pedal is easy to move forward and backward. Further, by transmitting the wheel to the unicycle via the transmission mechanism, the fatigue of the person operating the unicycle can be reduced, and the vehicle can be used in forward and backward travel. In addition, the rotation of the wheelchair is facilitated by making the connecting portion of the connecting shaft movable left and right. The wheelchair to which this unicycle is connected can be folded with the unicycle attached when not in use, or the unicycle fitted and connected to the rear frame of the wheelchair can be stored separately.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of a wheelchair for nursing care to which a unicycle of the present invention is connected will be described in detail with reference to the drawings.

FIG. 1 is a diagram showing a state in which a unicycle is connected to a rear part of a wheelchair of the present invention by a folding fixed shaft.
FIG. 6 is a schematic diagram in which a detachable link mechanism 6 having a coupling mechanism 5 is inserted into the rear frame 2 and is coupled to a shaft 8 of the unicycle 4 via a folding coupling shaft 7 coupled to the coupling mechanism. . The connecting shaft is a wheelchair in which at least one of the connecting mechanism and the shaft portion of the unicycle is connected to be movable in the left and right directions so as to easily change the left-right traveling direction of the wheelchair. 3 is a wheelchair handle, 9 is a pedal pedal, 10 is a drive shaft, 11 is a unicycle seat, and 12 is a brake.

FIG. 2 is a view showing a state in which a unicycle is connected to a rear portion of a wheelchair according to the present invention by a fixed fixed shaft. The wheelchair and the unicycle are connected by using a fixed connecting shaft, and other mechanisms are the same as those shown in FIG. Is the same as

FIG. 3 is a schematic view showing a form of a coupling shaft coupled to the coupling mechanism of the present invention. FIG. 3A shows a detachable link mechanism 6 having a coupling mechanism 5 and a wheelchair rear frame 2. And one end of a folding-type coupling shaft 7 processed into a shape having a predetermined function is coupled to the coupling mechanism, and the fastening lever 13 is operated and fixed. The coupling shaft coupled to the coupling mechanism is the first coupling shaft. This is connected to the shaft of the unicycle via a fastening portion 14 and an intermediate second fastening portion (folding fulcrum) 15. The holes 16 and 16 'of the second fastening portion are folded,
Alternatively, the two fastening portions 14 and 15 are loosened in a movable state in the fixing pin insertion hole when the connection shaft is stretched, and the connecting shaft is folded or stretched, and the fixing pin is inserted into a predetermined hole to insert the wheelchair and the unicycle. Fix the interval. FIG. 3B shows a state in which a detachable link mechanism 6 having a coupling mechanism 5 is inserted into the rear frame 2 of the wheelchair, and one end of a fixed coupling shaft 7 processed into a predetermined shape is coupled to the coupling mechanism. The fastening lever 13 is operated and fixed, and the other end of the connecting shaft is connected to the shaft of the unicycle.

FIG. 4 is a view showing a state in which a foldable link mechanism provided with the coupling mechanism of the present invention is inserted into a rear frame of a wheelchair, and FIG. 4 (1) is provided with a coupling mechanism 5 of a fixed shaft. FIG. 9 is a view showing a state in which the link mechanism 6 is inserted into the rear frame 2 of the wheelchair, the folding fulcrum 17 of the wheelchair and the link mechanism is opened for use, and the folding fulcrum of the link mechanism is fixed with the lock fitting 18. FIG. 4B is a diagram illustrating a state where the lock fitting of the link mechanism of FIG. 4A is removed and the link mechanism is closed. FIG. 4C is a side view showing a state in which the distal end of the fixed shaft is attached to the link mechanism 6 having the coupling mechanism 5 and is fixed by the fastening lever 13. Reference numeral 14 denotes the first fastening of the folding type coupling shaft. It is a wearing part.

FIG. 5 is a view showing a state in which a fixed link mechanism to which a connecting mechanism and a rescue facility mounting portion according to the present invention are added is inserted into a rear frame of a wheelchair, and FIG. 5 is a diagram showing a state in which a fixed link mechanism 6 provided with a columnar body installation location 19 and an oxygen cylinder installation location 20 on both sides of which an infusion device or the like is mounted on the wheelchair rear frame 2.
FIG. 5 (2) is a top view of a state where a fixed link mechanism is inserted into the wheelchair rear frame. 1 is a wheelchair, 4 is a unicycle, and 7 is a connecting shaft.

FIG. 6 is an explanatory view of a unicycle equipped with the continuously variable transmission mechanism (planetary gear system) of the present invention.
Is a cross-sectional view of a unicycle equipped with a continuously variable transmission mechanism. In the unicycle 4, the foot pedal 9 fixes the rim 24 with the spoke 23 attached to the hub 22 of the transmission mechanism 21, fits the tire 25, and attaches the frame 26. Was configured. Further, the configuration of the continuously variable transmission mechanism 21 is such that a planetary gear 32 is arranged on a sun gear 31 on the drive shaft 10, an internal gear box 33 that rotates while meshing with the planetary gear, and an umbrella is provided around the outer circumference of the internal gear. The transmission has a configuration in which a gear 34 is disposed, and the rotation is transmitted to the hub 22 to rotate the wheel. The operation of the manual change lever 27 is performed by operating the change lever 30 attached to the bracket 29 through the wire 28, and pedaling. In this configuration, the rotation of the pedal is transmitted to the wheels via the transmission mechanism. By mounting this continuously variable transmission mechanism on a unicycle, the rotation direction of the wheels can be changed from forward to reverse, and the rotation speed can be changed by switching the change lever [drive shaft → internal gear box → bevel gear →
When the transmission is transmitted to the [hub], the vehicle travels at a low speed. When the transmission is transmitted to the [drive shaft → the internal gear box → the planetary gear → the bevel gear → the hub], the vehicle travels at the medium speed, and the low speed / medium speed can be continuously switched.

FIG. 6 (2) is a schematic side sectional view for explaining the structure of the continuously variable transmission mechanism. Three planetary gears 32 are arranged on the sun gear 31 on the drive shaft 10, and the planetary gears and The internal gear box 33 that rotates while meshing,
A bevel gear 34 is arranged on the outer periphery of the internal gear, and the rotation is transmitted to the hub 22 to rotate the wheel.

FIG. 7 is a view for explaining a unicycle equipped with the continuously variable transmission mechanism (disk system) of the present invention.
FIG. 3 is a cross-sectional view of a unicycle equipped with a continuously variable transmission mechanism. In the unicycle 4, the pedals 9 fix the rim 24 with spokes 23 attached to the hub 22 of the transmission mechanism 21.
And the frame 26 is attached, and the configuration of the continuously variable transmission mechanism 2 includes a bevel gear A36 provided with a lining that rotates in contact with a disk 35 on the drive shaft 10,
The transmission comprises a bevel gear B37 fixed to a hub that rotates while meshing with the bevel gear A.
By operating the change lever 30 attached to the wheel 9, the rotation of the pedal is transmitted to the wheels via the speed change mechanism. This continuously variable transmission mechanism rotates the wheel in reverse when the disc is placed in the "-" position by operating the change lever, the wheel turns neutral when it is placed in the "N" position, and the wheel rotates when it is placed in the "+" position. Can continuously adjust the rotation direction and the speed of the wheels that rotate forward.

FIG. 7 (2) is a schematic cross-sectional side view illustrating the structure of the continuously variable transmission mechanism. The disk 35 on the drive shaft 10 rotates in contact with the lining surface of the lined bevel gear A, The configuration is such that the bevel gear B meshing with the bevel gear A and rotating is fixed to the hub and the wheels are rotated.

FIG. 8 is a view for explaining a unicycle equipped with a continuously variable transmission mechanism (a planetary gear / disk combination type) of the present invention. FIG. 8 (1) shows a unicycle equipped with a continuously variable transmission mechanism. FIG. 2 is a cross-sectional view of the unicycle 4 in which the pedal 9 is connected to the transmission mechanism 2.
The rim 24 is fixed by the spokes 23 attached to the hub 22 of the first shaft 22, the tire 25 is fitted, and the frame 26 is attached.
A planetary gear A38, a planetary gear B39 that rotates while meshing with the flank gear A, and a swing gear 40 that meshes with and rotates with the planetary gear B are arranged on the sun gear 31 on the upper gear 0. A rotating disk 41 is disposed on the rotating disk 41, and the rotating disk 41 is sandwiched by a flange disk composed of a fixed disk 42 and a pressing contact disk 43 pressed by a pressing spring 44,
This is a transmission configured to transmit the rotation of the rotating disk to the hub 22 to rotate the wheels. The triangular lever 45 is operated by operating the manual change lever 27 to change the position of the oscillating gear, and the rotating disk is placed between the flange disk. This is a configuration in which the power is transmitted to the wheels via a speed change mechanism that changes the transmission rotational speed by taking in and out.

FIG. 8 (2) is a schematic side sectional view for explaining the structure of the continuously variable transmission mechanism. The triangular lever 45 is operated by operating a manual change lever, so that the oscillating gear 40 and the rotating disk 41 are connected to the fixed disk 42. It is configured to be inserted deeply between the flange disks constituted by the pressing contact disk 43 and to transmit the medium speed rotation to the wheels. FIG. 8C is a schematic side cross-sectional view illustrating the configuration of the continuously variable transmission mechanism. The triangular lever 45 is moved by operating a manual change lever to press the swing gear 40 and the rotating disk 41 into contact with the fixed disk 42. This is a configuration in which a low-speed rotation is transmitted to the wheels by being inserted shallowly between the flange disks constituted by the disks 43.

[0026]

According to the present invention, the unicycle is connected to the rear part of the wheelchair for nursing care so that the caregiver in the wheelchair can look at the state of the cared person and respond to the state of the cared person in a bicycle-like manner. The car can be moved at an appropriate speed by judging the condition of the road surface, and the cared person can be moved as a wheelchair by removing the unicycle inside a facility or the like.
Furthermore, in the case of emergency, it is possible to take small turns in transporting the injured person, take it to a place or facility where treatment can be performed in a short time, and sometimes when taking the cared person out by ordinary car,
The wheelchair and the unicycle can be separated and loaded on the trunk of a car or the like, and can be easily assembled and used at a target place, and the attendant's labor can be reduced. When not in use, the wheelchair can be folded and stored with the unicycle attached, or can be stored even if the wheelchair and the unicycle are separated. In any case, the storage space is small.

[Brief description of the drawings]

FIG. 1 is a view showing a state in which a unicycle is connected to a rear part of a wheelchair according to the present invention by a folding fixed shaft.

FIG. 2 is a view showing a state in which a unicycle is connected to a rear portion of a wheelchair according to the present invention by a fixed shaft.

FIG. 3 is a schematic view showing a form of a coupling shaft coupled to the coupling mechanism of the present invention.

FIG. 4 is a view showing a state in which a foldable link mechanism having the coupling mechanism of the present invention is inserted into a wheelchair rear frame.

FIG. 5 is a view showing a state in which a fixed link mechanism to which a coupling mechanism and a rescue facility mounting portion of the present invention are added is inserted into a wheelchair rear frame.

FIG. 6 is a diagram illustrating a unicycle equipped with a continuously variable transmission mechanism (planetary gear system) of the present invention.

FIG. 7 is a diagram illustrating a unicycle equipped with a continuously variable transmission mechanism (disk system) of the present invention.

FIG. 8 is a diagram illustrating a unicycle equipped with a continuously variable transmission mechanism (a planetary gear / disk combination type) of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Nursing wheelchair 2 Wheelchair rear frame 3 Wheelchair handle 4 Unicycle 5 Coupling mechanism 6 Linkage mechanism 7 Coupling shaft 8 Shaft 9 Foot pedal 10 Drive shaft 11 Unicycle seat 12 Brake 13 Fastening lever 14 First fastening part 15 First 2 Tightening part 16 Fixing pin insertion hole 16 'Fixing pin insertion hole 17 Folding fulcrum of link mechanism 18 Lock fitting 19 Column installation location 20 Oxygen cylinder installation location 21 Transmission mechanism 22 Hub 23 Spoke 24 Rim 25 Tire 26 Frame 27 Manual change Lever 28 Wire 29 Bracket 30 Change lever 31 Sun gear 32 Planetary gear 33 Internal gear box 34 Bevel gear 35 Disk 36 Bevel gear A lined 37 Bevel gear B fixed to hub 38 Planetary gear A 39 Planetary gear B 40 Rocking Dynamic gear 41 Rotating disk 2 fixed disk 43 pressed against the disc 44 presses the spring 45 triangular lever

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[Procedure amendment]

[Submission date] October 30, 1999 (1999.10.
30)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 8

[Correction method] Change

[Correction contents]

FIG. 8

Claims (4)

[Claims] 1. A detachable foldable or fixed link mechanism having a coupling mechanism is inserted into a rear frame of a wheelchair for nursing care via a foldable coupling shaft or a fixed coupling shaft coupled to the coupling mechanism. A nursing wheelchair combined with a unicycle, wherein a unicycle driven by a foot pedal is combined. 2. A wheelchair for nursing care, comprising a unicycle combined with a unicycle, wherein the unicycle is configured to transmit forward or reverse rotation of the foot pedal via a continuously variable transmission mechanism. 3. The wheelchair for nursing care combined with a unicycle according to claim 1, wherein a brake mechanism used by a caregiver is added to the wheelchair for nursing care and / or the unicycle. 4. A detachable link mechanism provided with a coupling mechanism on a rear frame of a wheelchair for a nursing care, wherein a portion for mounting a rescue facility such as an oxygen cylinder or a drip device is added. A wheelchair for nursing care, comprising the unicycle according to any one of the above.