A treestand platform is strung in a manner at least similar to the stringing of a sports racket, such as a tennis racket, and a treestand having such a platform. The platform might comprise a peripheral frame supporting and delimiting a tension surface formed by a plurality of crossed string sections. The strung surface may be sufficiently resilient to yield very slightly under load, but is sufficiently tenacious that such slight yielding occurs without breakage or permanent deformation. The str...

An elevation mechanism for varying the angle of a main housing relative to a base pivoted to the housing is disclosed. At the front of the base is provided a series of vertically disposed openings or indentations into one of which a detent finger supported by the front of the housing is adapted to be inserted. The finger preferably comprises a part of an operational member having spring members and a operating surface whereby pressure applied to the operating surface will compress the spring mem...

This invention discloses an elevation bed apparatus which moves up and down while keeping its horizontal posture, in order to improve an effective use of an indoor space. The elevation bed of this invention includes an elevation device and a safety device, and the elevation device includes a winding mechanism and a wire driving system of a wire wound on the winding mechanism. A bed main body moves up and down along a guide rail when the wire is wound and rewound. When the elevation bed is of an ...

An elevation indicator comprising a supporting base, a reservoir for holding liquid supported on the base, an elongated staff and a flexible tube extending from the staff to the reservoir. An elongated scale is mounted on the staff for longitudinal movement relative to the staff and a transparent tube is also mounted on the staff and extends along one side of the staff adjacent the scale. A check valve is located at the top of the transparent tube and the bottom of the transparent tube is connec...

An elevation chair having a seat which is elevated by a driving mechanism, provided with a seat frame and a seat main body attached to the frame as to incline forward, the seat main body has an oscillation mechanism to automatically incline the seat main body forward at a predetermined height, and an angle detecting means to stop the driving mechanism when the seat main body reaches a predetermined inclination angle. And, the elevation chair has an automatic braking mechanism which releases whee...

A cabinet has a tread base rotatably connected to be oriented in an exercise position extending outwardly and in a stored position extending inwardly secured within the enclosure of the cabinet. The underside of the tread base may be configured to provide a suitable aesthetic exterior surface. A latching arrangement is provided to secure the tread base within the enclosure in the second or stored position. Elevation structure and motor structure are provided to elevate the tread base when in the...

This invention discloses an electrically driven elevation bed apparatus which moves up and down while keeping its horizontal posture, in order to make effective use of indoor space. The elevation bed of this invention includes improved driving systems and safety devices for the driving systems. The driving systems includes a driving device including a spring to store biasing force on a supporting shaft thereof for the ascending of the bed frame. Also included is the use of steel belts as cord bo...

The device is used for supporting an upper extremity limb of a patient located in either a bed or a chair. The device preferably includes bracket, a pole, a knee joint, a cradle, and an extremity support. Preferably, the knee joint provides movement in three radial directions to allow for optimal placement of the extremity support for a particular patient. The bracket preferably provides the flexibility to attach to a wide variety of furniture.

The apparatus disclosed includes two posts to be installed erectly on opposite sides of a common car lift; a cantilever assembly slideable up and down on each post, means for interengaging the lift with each cantilever assembly to raise it when a car is being lifted and to drop it when the lift is being lowered, means for pinning the cantilever assemblies at selective levels on said posts, and arms on said cantilever assemblies retractably extendible to intercept a car being lowered by said lift...

An elevation mechanism for moving a lamp includes a motor secured in a housing and having a spindle. A board is disposed below the housing and connected to the spindle by a cable. The cable is wound on and unwound from the spindle in order to move the board upward and downward when the motor is energized. A lamp is coupled to the board. The lamp is moved upward and downward for repairing purposes when the motor is energized.