Abstract: A wheelchair having a tiltable and translatable seat for compensating for shifting of the center of gravity of an occupant during tilting is provided. Such a wheelchair includes a frame, a first actuator, a seat assembly, and a first rigid link. The first actuator includes opposing front and rear ends coupled to the frame, a rod that extends between the front and rear ends, and a connector that is capable of translating in response to actuation of the rod. The seat assembly is directly coupled to the connector of the first actuator. The first rigid link has a front end and a rear end. The link front end is pivotably coupled to the frame, and the link rear end is pivotably coupled to the seat assembly. The link may be oriented such that as the connector translates, the first link impels the chair to tilt.

Abstract: A wheelchair having a tiltable and translatable seat for compensating for shifting of the center of gravity of an occupant during tilting is provided. Such a wheelchair includes a frame, a first actuator, a seat assembly, and a first rigid link. The first actuator includes opposing front and rear ends coupled to the frame, a rod that extends between the front and rear ends, and a connector that is capable of translating in response to actuation of the rod. The seat assembly is directly coupled to the connector of the first actuator. The first rigid link has a front end and a rear end. The link front end is pivotably coupled to the frame, and the link rear end is pivotably coupled to the seat assembly. The link may be oriented such that as the connector translates, the first link impels the chair to tilt.

Abstract: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.

Abstract: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.

Abstract: An articulating leg rest is provided having a first member pivotally connected to a base frame. The base frame may be either connected to or part of a wheelchair frame. A second member is telescopically received by the first member. A drive system includes a motor-driven lead screw. First and second housings each have internally threaded portions engaged with the lead screw. A link connects the first housing to the base frame. The second housing engages the second member. Rotation of the lead screw advances the first housing along the lead screw, moving the link and causing the first and second members to rotate relative to the base frame. Rotation of the lead screw also advances the second housing along the lead screw, causing the second housing to linearly translate the second member relative to the first member.

Abstract: An extendable and retractable leg rest includes a first member which is mounted for rotation to a support. A second member supporting a footrest is coupled to the first member and slides relative to the first member as the first and second members rotate, extending away from the first member as the first and second members are rotated into a raised position and retracting toward the first member as the first and second members are rotated into a lowered position. Movement of the second member relative to the first member is driven by a third member coupled to the second member by a gear system.