A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

A device including a frame; an actuator attached to the frame and slidaby movable with respect to the frame along a linear axis, and a helical member positioned within the frame and rotatably movable with respect to the frame about a helical axis of the helical member, wherein the helical axis is parallel to the linear axis, wherein the actuator and the helical member are configured to cooperate with one another such that (a) motion of the actuator along the linear axis in a first linear direction causes corresponding rotation of the helical member about the helical axis in a first rotational direction and (b) motion of the actuator along the linear axis in a second linear direction that is opposite the first linear direction causes corresponding rotation of the helical member about the helical axis in a second rotational direction that is opposite the first rotational direction.

A hand propelled wheeled vehicle, specifically a wheelchair, containing a pair of hand actuated, lever driven mechanisms to rotate the main wheels. The levers pivot around attachment points on the left and right sides of the vehicle chassis. The left lever actuates a frame responsible for contra-rotating two integral one-way clutches arranged on a drive shaft coupled to the left main wheel, with the right lever operating the right side mechanism in an identical fashion. The arrangements of the clutches utilize both the forward (pushing) and backward (pulling) stroke of the lever to rotate the main wheels forward. Steering and braking control is afforded through attachments integral to the hand grips of the right and left hand levers, respectively.

The present invention relates to a foldable wheelchair (10) comprising two side frame components (11a, 11b), respectively a left and a right side frame components, each mounting front and rear wheels (12a, 13a; 12b, 13b), respectively left and right, front and rear wheels, said rear wheels (13a, 13b) having an axis of rotation (XX′), said side frame components (11a, 11b) being connected together for relative folding movement between an erected position and a folded position by foldable link element (20) extending between said two side frame components (11a, 11b), wherein the left, respectively the right, side frame component (11a, 11b) comprises a T-shaped bracket (17), along which is connected both a rear wheel suspension (19) of the left, respectively the right, rear wheel (13a, 13b) and a left, respectively a right, end (21a, 22b) of the foldable link element (20), wherein the position of T-shaped bracket (17) is adjustable along the back-to-front direction of the wheelchair so as to permit the adjustment of the position of the center of gravity of the wheelchair.

Provided is a wheelchair that can be easily operated with either a right or left hand. The wheelchair according to the present invention is provided with: a right-left pair of first handrims connected to handrim spokes; a right-left pair of second handrims connected to spokes; a first rotary shaft for transmitting a first rotational force generated by rotation of the left first handrim to a right wheel; and a second rotary shaft for transmitting a second rotational force generated by rotation of the right first handrim to a left wheel, wherein a first power transmission device on a right inner shaft of a right drive mechanism meshes with a second power transmission device on the second rotary shaft, and a third power transmission device on a right outer shaft of the right drive mechanism meshes with a fourth power transmission device on the first rotary shaft.

A standing training mobile device for carrying a patient to perform active-assisted upright locomotion is provided. The standing training mobile device includes a base, a mobile module, a lifting module, a control module, and a support module. The mobile module and the lifting module are disposed on the base. The control module is disposed on the lifting module and is coupled to the mobile module. The control module includes a manipulation platform and two control assemblies disposed on the manipulation platform for use of the patient. The support module includes a support frame, a first support assembly, a second support assembly, and a third support assembly. The first support assembly, the second support assembly, and the third support assembly are slidably disposed on the support frame respectively. The second support assembly is disposed between the first support assembly and the third support assembly.

A conveyance to carry humans, such as a wheelchair, is described having levers on each side of the wheelchair that are manually moved forward and backward to propel the conveyance. The user is able to shift into forward, reverse or neutral, brake, and change mechanical advantage (gear ratio), all this without removing the user's hands from the drive levers.

A device including a frame; an actuator attached to the frame and slidaby movable with respect to the frame along a linear axis, and a helical member positioned within the frame and rotatably movable with respect to the frame about a helical axis of the helical member, wherein the helical axis is parallel to the linear axis, wherein the actuator and the helical member are configured to cooperate with one another such that (a) motion of the actuator along the linear axis in a first linear direction causes corresponding rotation of the helical member about the helical axis in a first rotational direction and (b) motion of the actuator along the linear axis in a second linear direction that is opposite the first linear direction causes corresponding rotation of the helical member about the helical axis in a second rotational direction that is opposite the first rotational direction.

A manual movable body with wheels 10 which can be moved by manually rotating the wheels, comprising an upper body frame 12 supporting a heavy goods, a pair of travelling wheels 18, each of which is provided on the corresponding side of a lower body frame 14 which is not in contact with upper body frame 12, and is rotationally supported by a first horizontal rotation shaft 16 extending in the widthwise direction of the lower body frame 14, and a pair of abutting rollers, each of which is mounted on upper body frame 12, and is rotationally supported by a second horizontal rotation shaft extending in the widthwise direction of the upper body frame 12.