Auxiliary drive device for a wheelchair
AssigneeAlber GmbH
InventorsJoachim Menig, Miroslaw Rodewald
Life of this patent
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Abstract
An auxiliary drive device for a wheelchair has at least one freely pivotable electrically driven drive wheel and a coupling mechanism for coupling the auxiliary drive device to the wheelchair. The coupling mechanism includes a movable locking element which is movably supported in the coupling mechanism. The movable locking element can be in a locking position in which it causes locking in a positive-locking manner so that the auxiliary drive device is coupled to the wheelchair and, by operation of a handle, the locking element can be moved in a release position in which uncoupling of the auxiliary drive device from the wheelchair is possible.
Claims7
An auxiliary drive device for a wheelchair, comprising:
- at least one electrically driven drive wheel;
- an electronic control unit for controlling functions of the auxiliary drive device;
- a coupling mechanism for coupling the auxiliary drive device to a wheelchair;
- and
- an operating satellite for controlling the auxiliary drive device, the operating satellite being adapted to be attached to the wheelchair at a plurality of positions in order to be operated by a user of the wheelchair;
- the operating satellite comprising:
- an operating satellite control unit adapted to perform bidirectional communication between the operating satellite and said electronic control unit for controlling the functions of the auxiliary drive device by means of respective signals;
- and
- a control element which is designed such that by operation of said control element control and drive of the auxiliary drive device can be effected, wherein said control element comprises a rotational control ring,
- wherein the content of a control signal depends on the direction of operation and the correlation between the operational direction and the activation of the auxiliary drive device caused by this operation can be changed, and
- wherein the operating satellite is adapted such i) when the control element is attached to a left side of the wheelchair and rotation of the rotational control ring in a first direction will cause a forward motion of the wheelchair, and ii) when the control element is attached to the right side of the wheelchair and rotation of the rotational control ring in a second direction opposite the first direction will cause the forward motion of the wheelchair.
Dependencies are inferred from the claim text.