A wheelchair with a lifting function is designed to assist a caregiver when transferring a wheelchair user not only indoors but also outdoors. The target user is typically a severely disabled person with disabled upper and lower limbs and therefore needs the physical support when using a toilet or transferring from a bed to a wheelchair and so forth. Both the wheelchair and the lift are driven by their respective motors. The user can approach above the toilet stool or the bed from the rear because the large driving wheels are located in front of the body, and the seat can be folded. This wheelchair is allowed to travel on public roads because of the mechanism of folding the frame for lifting. This paper presents the concept design and the experimental results of a full-sized prototype wheelchair with the lifting function, which confirms the design effectiveness.
We have developed a pair of step-climbing units that can be installed on a standard manual wheelchair. Many wheelchair users hope to lead an independent life without assistance. The target users of these units are those who can independently lift the front casters of their wheelchairs. The units are installed on the back frames of a wheelchair. Each unit comprises two actuators and has 2 degrees of freedom: telescopic motion and rotational motion. They are lightweight and do not prevent the wheelchair from being folded. Therefore, it is still relatively easy to load a wheelchair fixed with these units into a car. In our earlier project, these units addressed the problem of climbing a single step. In this article, we primarily discuss a strategy that enables wheelchair users to climb stairs comprising multiple steps. We additionally use a pair of portable slopes to achieve this task. Results of experiments where users traveled on a pair of slopes that covered a height of 30 cm over two steps confirm the effectiveness of the design.
A wheelchair with a lifting function is designed to assist a caregiver when transferring a wheelchair user not only indoors but also outdoors. The target user is typically a severely disabled person with disabled upper and lower limbs, and therefore needs the physical support when using a toilet or transferring from a bed to a wheelchair and so forth. Both the wheelchair and the lift are driven by their respective motors. The user can approach above the toilet stool or the bed from the rear because the large driving wheels are located in front of the body and the seat can be folded. This paper presents the concept design and the experimental results of a scale model wheelchair with the lifting function, which confirms the design effectiveness. In addition, the traveling, the lifting operation and how to fold are demonstrated using a full-sized prototype.
Many people with lower limb disabilities use wheelchairs, but their degrees of physical impairment vary greatly. We direct our investigation to manual wheelchair users who are able to lift the front wheelchair casters independently. They hope to establish an independent life without assistance to the greatest extent possible. We developed a pair of step-climbing units that can be installed in a standard manual wheelchair. This mechanism is simpler than any other because it uses the remaining capabilities of the wheelchair user. Each unit comprises two actuators and has two degrees of freedom: a telescopic motion and a rotational motion. We mainly discuss the step-climbing motion using this system. Experimental results obtained when ascending and descending a step of 15 cm height confirm the design's effectiveness.
Akihiko NAKAIA , ( TSUDAKOMA Corp )A wheelchair Wi止 the fUnction of lifting has performance of care lift ' s transfer and elecnic wheelchair ' s movem t. lhis system is desigried to assist a burden ofnursing care , to transfer a severely disabled person who needs care to a wheelchair from a bed and to transfer him/ her to a toilet seat from a wheelchair . lhis system is able to use not only home and insti 加 tion but also outside location. This system has the possibili 重 y to board the car fer the exclusive use of wheelchair because it be◎Dmes a compact size by fblding mechanism , Additionally the system is able tO run in the public road . Ke ッ 肋 庸 :Medical and Wel 飴re Assistance, Wheelcha 塊 Care Li食, Trans 色 r a person
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