A radial-scissor lift assembly for a table top comprising an upper support member, a lower support member, and at least three scissor assemblies coupled to the upper and lower support members. Each scissor assembly includes a table-scissor member rotatably supporting a table wheel adapted for contacting an unattached table. Each scissor assembly further includes a floor-scissor member rotatably supporting a floor wheel adapted for contacting a surface supporting the radial-scissor lift assembly. The radial-scissor lift assembly has an actuator assembly coupled to the lower support member and to the upper support member for moving the scissor assemblies. A method for lowering a table top comprising disposing a table top on at least three table rollers, and rolling the table rollers along the bottom on the table top and away from the center of the table top to cause the table top to be lowered.

A radial-scissor lift assembly for a table top comprising an upper support member, a lower support member, and at least three scissor assemblies coupled to the upper and lower support members. Each scissor assembly includes a table-scissor member rotatably supporting a table wheel adapted for contacting an unattached table. Each scissor assembly further includes a floor-scissor member rotatably supporting a floor wheel adapted for contacting a surface supporting the radial-scissor lift assembly. The radial-scissor lift assembly has an actuator assembly coupled to the lower support member and to the upper support member for moving the scissor assemblies. A method for lowering a table top comprising disposing a table top on at least three table rollers, and rolling the table rollers along the bottom on the table top and away from the center of the table top to cause the table top to be lowered.

An adjustable tray system is provided. The adjustable tray system may include a working table and a support member, where the support member may attach the working table with a supporting structure. The adjustable tray system may also include at least one adjustment mechanism. The adjustment mechanism may couple the working table with the support member such that an angle is formed between the support member and the working table. The adjustment mechanism may also allow angular adjustment of the working table such that the working table pivots about a rotation point of the adjustment mechanism. The adjustable tray system may be used in conjunction with a height adjustment platform, such as for an adjustable keyboard tray of a height adjustable desk.

An adjustable tray system is provided. The adjustable tray system may include a working table and a support member, where the support member may attach the working table with a supporting structure. The adjustable tray system may also include at least one adjustment mechanism. The adjustment mechanism may couple the working table with the support member such that an angle is formed between the support member and the working table. The adjustment mechanism may also allow angular adjustment of the working table such that the working table pivots about a rotation point of the adjustment mechanism. The adjustable tray system may be used in conjunction with a height adjustment platform, such as for an adjustable keyboard tray of a height adjustable desk.

An adjustable stand up desk includes an upper desk surface and a second desk surface connected to the upper desk surface. The desk further includes a base with at least two channels and a pair of positioning legs configured to sit on an existing desk. A folding leg assembly connects the base to the first desk surface. The folding leg assembly includes a first pair of legs that extends between the first desk surface and the base, and a second pair of legs that extends between the first desk surface and the base. Each leg of the first and second pairs of legs is configured to move within the at least two channels of the base, such that the adjustable stand up desk can be adjusted from at least a closed position to a fully raised position.

An adjustable stand up desk includes an upper desk surface and a second desk surface connected to the upper desk surface. The desk further includes a base with at least two channels and a pair of positioning legs configured to sit on an existing desk. A folding leg assembly connects the base to the first desk surface. The folding leg assembly includes a first pair of legs that extends between the first desk surface and the base, and a second pair of legs that extends between the first desk surface and the base. Each leg of the first and second pairs of legs is configured to move within the at least two channels of the base, such that the adjustable stand up desk can be adjusted from at least a closed position to a fully raised position.

A lifting platform, includes a movable support frame composed of a first and a second frames being cross pivotally and slidably connect between a bearing platform and a base, at least a positioning connecting rod set between the movable support frame and a portion close to the middle of the bearing platform or the base, and a damping extension element combine with an adjustment element and mounted on the movable support frame between the bearing platform and the base; the damping extension element controlled with extension or locking for adjusting the cross angle of the movable support frame, the adjustment element is provided to adjust the position of the damping extension element to form different supporting force to balance difference of bearing weight of the bearing platform, to achieve the effect of reducing the force required to operate the bearing platform for lifting.

A lifting platform, includes a movable support frame composed of a first and a second frames being cross pivotally and slidably connect between a bearing platform and a base, at least a positioning connecting rod set between the movable support frame and a portion close to the middle of the bearing platform or the base, and a damping extension element combine with an adjustment element and mounted on the movable support frame between the bearing platform and the base; the damping extension element controlled with extension or locking for adjusting the cross angle of the movable support frame, the adjustment element is provided to adjust the position of the damping extension element to form different supporting force to balance difference of bearing weight of the bearing platform, to achieve the effect of reducing the force required to operate the bearing platform for lifting.

The invention is directed to a base for pieces of furniture having at least one supporting column structure. The base comprises a central hub receiving the lower end of a column and a number of arms radiating from the hub. The object of the invention is to provide a furniture base which allows varying its height. This is accomplished by changing the angle between hub and arms, or by shifting the points of attachment of the arms on the hub in the vertical direction.

The invention is directed to a base for pieces of furniture having at least one supporting column structure. The base comprises a central hub receiving the lower end of a column and a number of arms radiating from the hub. The object of the invention is to provide a furniture base which allows varying its height. This is accomplished by changing the angle between hub and arms, or by shifting the points of attachment of the arms on the hub in the vertical direction.