• Journal of Korea Society of Industrial Information Systems
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• v.7 no.3
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• pp.68-73
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• 2002

This study has been advanced to the design method for embodying the hydraulic circuit and control device in considering the safety for the development of wheelchair lift, using in the public transportation bus. Recently, mobility and accessibility occurs for the elder and the handicapped in the aging problem, In this paper, we design the hydraulic power system to operate lifter loading one wheelchair handicapped person and one's supporter to get in the bus. We develop the lifter safely. We check the trajectories of lifter inside frame box to protect its corrosion and the stress at the joints of mechanical structure. Those can be helped to keep the safety and accuracy of the multiple dynamic systems for precision quality assurance in mass production.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2002.06a
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• pp.1-6
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• 2002

This study has been advanced to the design method for embodying the hydraulic circuit and control device in considering the safety for the development of wheelchair lift, using in the public transportation bus. Recently, mobility and accessibility occurs for the elder and the handicapped in the aging problem, In this paper, we design the hydraulic power system to operate lifter loading one wheelchair handicapped person and one's supporter to get in the bus. We develop the lifter safely. We check the trajectories of lifter inside frame box to protect its corrosion and the stress at the joints of mechanical structure. Those can be helped to keep the safety and accuracy of the multiple dynamic systems for precision quality assurance in mass production.

• Journal of the Korean Society for Precision Engineering
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• v.28 no.2
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• pp.211-218
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• 2011

We reported the design, prototype, test drive, and mechanical & electrical engineering analyses of a power-lifting wheelchair using mecanum wheels. Mecanum wheels enable translational and rotational movement of the device in any direction on the ground. The power-lifting capability enables the seated individual to reach the standing height of a non-disabled individual. This mecanum wheelchair is fully controlled by the joystick attached to the armrest. The motion of the wheelchair and lifting action of the seat were studied using statics and dynamics. We believe this mecanum wheelchair is a prime candidate for commercial production.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.405-411
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• 2022

Korea's long-term care insurance for the elderly, which started in 2008, is a borrowed one from gaeho insurance, which started eight years earlier. Both countries have a policy of welfare equipment benefit systems to support the lives of the elderly who are intellectually and mentally weakened. In this study, we attempted to compare and examine the welfare equipment items in Korea with those in Japan and find out the characteristics of the items in Korea and Japan. In Korea, loitering-detection device, posture changing devices, and incontinence underwears were registered as welfare devices before Japan, and in Japan, automatic urine disposal systems, wheelchair electric assist device, position converters, and lifts for handicapped person were designated as welfare devices before Korea. In addition, the Japanese Ministry of Health, Labor and Welfare has announced the designation of the excretion prediction support device as a welfare device. If Korea and Japan cooperate to develop welfare equipment items together, it will be of great help in improving the quality of life of the elderly in both countries in a super-aged society.