A submergible stool includes a body having a top, a bottom spaced from the top, and a sidewall extending between the top and the bottom and defining an enclosed interior cavity extending between the top, the bottom, and the sidewall. A first aperture is formed in the sidewall proximate the bottom and extends from the enclosed interior cavity to an exterior of the stool. A second aperture is formed in the sidewall proximate the top and extends from the enclosed interior cavity to an exterior of the stool. The apertures are positioned such that when the stool is placed in a body of water, water will flow into the interior cavity through the first aperture, air will be forced out of the second aperture, and the stool will sink to a bottom of the body of water in an upright position.

There is provided an ergonomic chair which is produced from flat components. The components may be made of paper. The components are designed using parametric equations which take the targeted user's proportions into account. The components are then folded, joined, and coated with strengthening material. The chair has a seat, a base, and three legs connecting the seat to the base. The base contains a counterweight mass for keeping the chair in a default upright position. The base contains an accelerometer which can transmit data to a computing device to track a user's posture and other health-related data.

A frame for a simulator includes first and second guides and subframes for a seat and for a steering wheel which are slidable in the frame along the guides. The subframes include fixation devices. Each fixation device includes a fixation member which extends on either side of the respective guide and which has a recess through which the guide protrudes. The fixation member is pivotable about an axis oriented perpendicularly of the guide between a release position, in which mutually opposite edges of the recess lie at a distance from the guide, and a fixation position in which the edges engage on mutually opposite sides of the guide. A subframe slidable along a guide for use in such a frame. A fixation device for use in such a frame.

A multifunctional furniture device that may simultaneously serve gaming, vocational, and lounging purposes is provided. The system generally comprises a framework, opening mechanism, platform, and seat. A user may alter the position of the various piece of the framework to create different furniture types. An opening mechanism of the device allows the pieces of the frame to move about one another and into different positions. A computing device, input device, and display may be incorporated into the device to allow the user to perform vocational and entertainment activities when the device is placed in one position and may then be completely hidden within an internal cavity of the device when placed in a different position.

A convertible meditation cushion that facilitates multiple postural positions for meditation, including sitting, kneeling, and lying down. The preferred embodiment of the cushion has three semi-circular segments that are connected in series with hinges. The hinges allow the three semi-circular segments to be rotated with respect to one another to create a variety of configurations to facilitate the multiple postural positions for meditation.

A detachable gaming chair, including a backrest, a seat, two armrests, a bracket, and rollers. The backrest includes a backrest main body and left and right wings. The backrest main body includes an upper frame and a lower frame. At the connection point of the upper and lower frame, the lower frame is located inside the upper frame, and the left and right wings are detachably connected to both sides of the backrest main body. The detachable gaming chair of the present invention adopts a compact backrest structure, which reduces the occupied space, makes the outer contour of the backrest shoulder smoother, and is easy to install and disassemble. The backrest adopts a square tube butt-insertion structure, which is not easy to rotate, which can make the left and right wings and the backrest main body more firmly connected, and will not be loose or deformed after long-term use.

A chair having a chair back with an enlarged and curved seating surface is described. The raised seating surface has a front to back dimension (depth) substantially similar to its left to right dimension (width) approximately 0.80 meters. The seating surface is further curved upwardly on the left and right sides relative to the front to back center of the seating surface. In one variation, the radius of curvature pertaining to the curve is approximately 1.0 meters.

A modular attachment system may be provided with the ability to rapidly interchange different peripherals and accessories at different points where modular receivers have been installed. One or more modular receivers may include one or more quick-connect receptacles adapted to receive corresponding one or more quick connectors of one or more peripheral adapters to quickly connect and disconnect the modular peripheral adapters to facilitate rapid reconfiguration of chairs, desks, tables, or other furniture for different applications. A variety of peripherals and accessories can be attached to one or more modular peripheral adapters to create peripheral assemblies that can be rapidly interchanged by rapid connection to or disconnection from any installed modular housings to reconfigure furniture for different applications. The modular receivers may be attached to a desk, table, or other furnishings or manufactured as a part of office, computer, or gaming chairs, desks, tables, or other furnishings.

A modular attachment system may be provided with the ability to rapidly interchange different peripherals and accessories at different points where modular receivers have been installed. One or more modular receivers may include one or more quick-connect receptacles adapted to receive corresponding one or more quick connectors of one or more peripheral adapters to quickly connect and disconnect the modular peripheral adapters to facilitate rapid reconfiguration of chairs, desks, tables, or other furniture for different applications. A variety of peripherals and accessories can be attached to one or more modular peripheral adapters to create peripheral assemblies that can be rapidly interchanged by rapid connection to or disconnection from any installed modular housings to reconfigure furniture for different applications. The modular receivers may be attached to a desk, table, or other furnishings or manufactured as a part of office, computer, or gaming chairs, desks, tables, or other furnishings.

A multipurpose workout chair is an exercising equipment that not only can be used for workout training, but also can be used as a chair. The multipurpose workout chair includes adjustment devices and other components acting with each other which allows the multipurpose purpose chair to be changed into various configurations according to different training methods and each of the training methods may be executed by one or more different muscles.