An auxiliary drive device for a wheelchair has at least one 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.

The present disclosure includes methods of operating a wheelchair configured to reposition an occupant between a lowered and a raised position. The wheelchair can include a frame, a seat moveable relative to the frame, a drive wheel, one or more pairs of arm assemblies, and one or more sensors. The arm assembly includes a wheel configured to move from a first spatial location when the wheelchair is operating on flat, level ground to a second spatial location that is different than the first spatial location. Arm limiters can selectively engage the arm assembly based on at least one of a seat position, position of the arm assembly, and surface conditions of ground surface. The arm limiters can limit the range of motion of the arm assembly and sometimes other operational aspects of the chair. The methods adjust the maximum operational speed of the wheelchair when the seat is in an elevated position based on sensor data relating to one or more of the arm limiter position and the position of the frame.

A system for use with a mobile device includes at least one sensor to sense a variable related to tilting of the mobile device and at least one activatable system in operative connection with the sensor. The at least one activatable system increases stability of the mobile device upon actuation/change in state thereof on the basis of data measured by the at least one sensor. A variable related to tilting includes variables that indicate concurrent, actual tilting as described herein as well as variables predictive of imminent tilting. Activatable systems hereof change state upon actuation or activation to increase stability of the mobile device by reducing, eliminating or preventing tilting.

A mobility assistance apparatus includes first and second frames positioned on left and right sides of a user; a hinge arm mechanism coupled to the first and second frames; and a pivotable securing unit or a walking seat coupled to the frames to transfer at least a portion of the user's body weight from the legs and to transfer weight through the user's hip or pelvis to the first and second frame enabling the user to stand or work for an extended period without requiring the user's arms to hold the frame; a wheel coupled to the first and second frames; a brake coupled to the wheel to provide friction to the wheel when actuated; and a tensioner coupled to the brake to adjust cable tension during wheel braking.

Provided is a robot. The robot includes a main body in which an opening portion is defined in a top surface thereof, a seat configured to cover an upper side of the opening portion, a traveling wheel protruding downward from a bottom surface of the main body, a backrest connected to the seat, an opening defined in a front surface of the main body, a foot supporter protruding forward from the main body through the opening, and a pair of arm supporters connected to both sides of the seat, respectively.

A small electric vehicle includes: left and right motors connected respectively to the left and right driving wheels in an individually power-transmissible manner; an operation unit that includes a joystick-type operation element; a control unit that controls the left and right motors according to an amount of operation on the operation element; and a travel permission switch that permits control of the left and right motors through the operation element, and is configured: to control the left and right motors, based on a target vehicle speed provided by an operation position of the operation element in an on state of the travel permission switch, and to activate a control parameter selection mode and allow at least one control parameter including a maximum speed to be changed when the operation element is subjected to a tilting operation for a predetermined time period in an off state of the travel permission switch.

Provided is a robot. The robot includes a main body which is provided with a traveling wheel and in which an opening portion is defined in a top surface thereof, a seat configured to cover the opening portion at an upper side of the opening portion, an elevation mechanism disposed within the main body, the elevation mechanism being configured to elevate the seat with respect to the main body, and a gap cover configured to be elevated together with the seat, the gap cover being configured to cover a gap between the seat and the main body. The seat includes a seat base to which the gap cover is connected and which is inserted into the opening portion and a seat pad configured to cover the seat base at an upper side of the seat base, the seat pad being disposed above the main body.

A motorized wheelchair controlled by electronic control, equipped with a structure adapted to receive a series of quick adjustments and an off-road kit to allow its locomotion through differentiated, rough and inhospitable terrains. Said wheelchair is formed by a tubular metallic structure composed of a seat structure, backrest structure, armrest and lower support structure equipped with a front wheel and rear wheel. The off-road kit consists of a pair of rear wheels with off-road or mixed tires equipped with their own rotating motor, and a pair of front wheels with off-road or mixed tires, being such wheels engaged and fixed to the chair, easily and quickly replacing the original ones.

A system for controlling a wheelchair is disclosed. The system includes an input device that includes a shaft element, a base element, and one or more annular elements. A lower distal end of the shaft element is coupled to the base element, and the shaft element is configured to pivotally move about the lower distal end of the shaft element. A first annular element of the one or more annular elements is circumferentially disposed around the shaft element. The first annular element is coupled to the base element, and the first annular element is configured to rotate about the shaft element. The input device is configured to generate one or more input signals based on a position of the first annular element and a pivotal movement of the shaft element. The one or more input signals are configured to cause a controller to set an operation mode of the wheelchair.

A frame positioning device comprises a base assembly, an elevation and rotation assembly coupled to the base assembly, and a table assembly coupled to the elevation and rotation assembly. The table assembly comprises a table support and pivot sub-assembly, a first table section subassembly, and a second table section subassembly. The table support and pivot subassembly is coupled to the first table section subassembly via a first pivot point. The table support and pivot subassembly is coupled to the second table section subassembly via a second pivot point.