A stool comprises a height-adjustable seat. The seat is coupled to a stem of the stool using a ball and socket mechanism. The ball and socket mechanism enables the seat to be tiltable up to 20 degrees in all directions about a vertical axis. The ball and socket mechanism aids in providing the seated individual with an increased range of motion. The range of tiltable motion can be adjusted using an adjustment member.

A guide spring for a seating device has an inner portion, an outer portion, and a spiral coiled portion extending more than one convolution between the inner portion and the outer portion. The inner portion is firmly attached to a rod and the outer portion is firmly attached to a body. The guide spring thereby secures a radial position of the rod within the body, allowing the rod to move axially relative to the body when a load is placed onto the seating device. When in use, the guide spring deforms from a flat spiral shape to a conical spiral shape with axial movement of the rod relative to the body.

A height adjusting device is disclosed. The height adjusting device includes a supporting foot and a lifting nut coupled to the supporting foot. The device also includes a lifting rod coupled to the lifting nut by a threaded interaction. Further, the device includes a first mechanical combination of: a fixing plate coupled to the lifting nut and having a threaded aperture therethrough; a screw threaded through the threaded aperture and having a first screw end and a second screw end; a knob coupled to the first screw end; and a latching tooth coupled to the second screw end. Further still, the device includes a second mechanical combination like the first mechanical combination of the fixing plate, the screw, the knob, and the latching tooth. The fixing plate of the second mechanical combination is positioned at a different orientation than the first mechanical combination relative to the lifting nut.

A height adjusting device is disclosed. The height adjusting device includes a supporting foot and a lifting nut coupled to the supporting foot. The device also includes a lifting rod coupled to the lifting nut by a threaded interaction. Further, the device includes a first mechanical combination of: a fixing plate coupled to the lifting nut and having a threaded aperture therethrough; a screw threaded through the threaded aperture and having a first screw end and a second screw end; a knob coupled to the first screw end; and a latching tooth coupled to the second screw end. Further still, the device includes a second mechanical combination like the first mechanical combination of the fixing plate, the screw, the knob, and the latching tooth. The fixing plate of the second mechanical combination is positioned at a different orientation than the first mechanical combination relative to the lifting nut.

The invention relates to a piece of seating and supporting furniture with a seating and supporting body, comprising: a height-adjustable column; a seating and supporting body, which is mounted pivotably about at least one horizontal axis between a first end position and a second end position at a first end of the height-adjustable column; a stopping mechanism, which is situated at a second end of the height-adjustable column; and a locking mechanism for releasably locking the stopping mechanism. A seating and supporting piece of furniture which allows reliable and user-friendly operation is created according to the invention in that a transfer device is used to release the locking of the stopping mechanism by the locking mechanism via the pivoting of the seating and supporting body between the first end position and the second end position.

An example gas lift cylinder removal device described herein includes a collar assembly having a guide pin, a set screw, and a lead screw. The example cylinder removal device is disposed on a gas lift cylinder and provided proximate to and below a seat plate assembly of an example task chair. Operation of the gas lift cylinder removal tool from a first position to a second position provides a mechanical advantage to impart an upward force on a bushing of the seat plate assembly, thereby displacing the cylinder from the seat plate assembly. An example task chair having the gas lift cylinder removal tool is described herein comprising a support surface, a seat plate assembly, and a base assembly, the seat plate assembly including a bushing, an upper plate and a lower plate.

An example gas lift cylinder removal device described herein includes a collar assembly having a guide pin, a set screw, and a lead screw. The example cylinder removal device is disposed on a gas lift cylinder and provided proximate to and below a seat plate assembly of an example task chair. Operation of the gas lift cylinder removal tool from a first position to a second position provides a mechanical advantage to impart an upward force on a bushing of the seat plate assembly, thereby displacing the cylinder from the seat plate assembly. An example task chair having the gas lift cylinder removal tool is described herein comprising a support surface, a seat plate assembly, and a base assembly, the seat plate assembly including a bushing, an upper plate and a lower plate.

An intelligent automated chair that is configured to have uploaded various operating models to run a sequence of patterns that cause the intelligent automated chair to alternate between various positions. An intelligent automated chair system configured to receive data from various inputs including user input, sensors, biosensors, historical usage, profile, and others to generate a recommended operating model for the intelligent automated chair. An intelligent automated chair system running an operating model that is interruptible manually by a user or as a result of sensed date, which can alter the pattern or parameters of the operating model.

An intelligent automated chair that is configured to have uploaded various operating models to run a sequence of patterns that cause the intelligent automated chair to alternate between various positions. An intelligent automated chair system configured to receive data from various inputs including user input, sensors, biosensors, historical usage, profile, and others to generate a recommended operating model for the intelligent automated chair. An intelligent automated chair system running an operating model that is interruptible manually by a user or as a result of sensed date, which can alter the pattern or parameters of the operating model.

The present invention discloses a sittable universal motion platform including a chassis, a support arm and a waist ring, the support arm is rotationally connected with the chassis and provided with an adjusting support; the adjusting support includes a slide carriage and a slide block, the slide block is slidingly connected with the slide carriage and is fixed on the support arm, the slide carriage is connected with the waist ring; and a positioning device is arranged on the adjusting support. The slide carriage is provided with slide rail and the slide block is provided with a corresponding matched chute, the number of slide rails can be two, and the number of corresponding chutes is also two, so that the slide carriage and the slide block can slide at will and can be more stable.