Land vehicles – Wheeled – Occupant propelled type
Reexamination Certificate
1999-04-27
2001-06-19
Camby, Richard M. (Department: 3661)
Land vehicles
Wheeled
Occupant propelled type
C180S065100, C280S047410, C254S00700R
Reexamination Certificate
active
06247718
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention concerns a wheelchair for handicapped persons. Such wheelchairs comprise a seat, a frame, and in most cases a drive mechanism. Generally this is an electrical-motor drive with battery.
2. Description of the Prior Art
The previously known wheelchairs have a serious disadvantage. The handicapped person is found at a specific height above the floor when the wheelchair is used. In this position, the handicapped person can, in fact, perform several activities of daily life, for example, opening doors or turning on the television. For other activities, however, the position is unfavorable, since it is too high or too low. If he wishes to plug an electrical plug into a plug socket, then the position can be too high. If he wishes to press the switch in an elevator or to use a normal speaker's podium, then the position can be too low.
SUMMARY OF THE INVENTION
The invention takes on the task of indicating a wheelchair, which is configured in such a way that the user can adapt his height position to the respective requirements. The wheelchair will be found in a stable.
In this way, the following is achieved individually: The handicapped person can adjust his seat height at any time with such a wheelchair. The adjustment is not in steps. It is also free of shocks and it is avoided that the adjustment causes the user any discomfort or even pain. The necessary stability is also achieved by the telescopic construction with threaded elements with the appropriate element diameter, and this stability is also maintained in the extended state.
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Gobbers Dieter
Gobbers Walters
Camby Richard M.
Ohlandt Greeley Ruggiero & Perle LLP
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