A piezoelectric adaptive mesh includes multiple piezoelectric fibers that include piezoelectric structures that can act as sensor and/or actuators to enhance a person's comfort. The piezoelectric structures communicate with a controller and/or a software processing system and may identify the position of a user and make adjustments through the actuators to increase user comfort by providing support, assistance, treatment, and/or temperature adjustment.

The present disclosure provides a swingable body carrier for hanging a swingable seat upon a base through swing arms and pushing the swingable seat to move reciprocatingly by a power assembly. Then, a carrying assembly, which is provided for carrying a body, is disposed upon the swingable seat. When a user sits or lies on the swingable body carrier of the present disclosure, it serves like a cradle to automatically swing so as to provide a good and comfortable user experience.

A swing chair includes a base, a seat, and a driving frame. The seat is disposed above the base. The driving frame is disposed between the base and the seat. The driving frame includes a first fixing base, a first shaft, a second fixing base, a second shaft, a first driving assembly, and a second driving assembly. The first fixing base is fixed to the base. The first shaft is rotatably connected to the first fixing base. The second fixing base is fixed to the seat. The second shaft is connected to the first shaft and the second fixing base is rotatably connected to the second shaft. The first driving assembly is configured to drive the first shaft to rotate with respect to the first fixing base. The second driving assembly is configured to drive the second fixing base to rotate with respect to the second shaft.

The present disclosure provides a swingable body carrier for hanging a swingable seat upon a base through swing arms and pushing the swingable seat to move reciprocatingly by a power assembly. Then, a carrying assembly, which is provided for carrying a body, is disposed upon the swingable seat. When a user sits or lies on the swingable body carrier of the present disclosure, it serves like a cradle to automatically swing so as to provide a good and comfortable user experience.

Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive force of a motor in a previous cycle; and comparing a maximum counter-electromotive force value with a preset value, and calculating a PWM pulse duty factor in a next cycle. By directly detecting the counter-electromotive force of the motor without using a sensor, the present invention implements swinging frequency and phase tracking as well as swinging amplitude control, and simplifies a control system.

A base seat, which is adapted for being used with a bed, a chair or a sofa, includes a fixation base, a first rocking mount disposed above the fixation base and driven by a first drive device to reciprocatingly swing back and forth relative to the fixation base, a second rocking mount disposed above the first rocking mount and driven by a second drive device to reciprocatingly swing from side to side relative to the first rocking mount, and a swivel mount disposed above the second rocking mount and driven by a third drive device to rotate about an imaginary vertical axis. As such, the base seat can swing back and forth, swing from side to side, and rotate, independently or simultaneously.

Disclosed is a swinging drive control apparatus, including a controller and a motor, where the controller detects a counter-electromotive force of the motor and drives the motor according to the detection result. Also disclosed is a corresponding method, including: measuring a counter-electromotive force of a motor in a previous cycle; and comparing a maximum counter-electromotive force value with a preset value, and calculating a PWM pulse duty factor in a next cycle. By directly detecting the counter-electromotive force of the motor without using a sensor, the present invention implements swinging frequency and phase tracking as well as swinging amplitude control, and simplifies a control system.

An electric glider, rocking chair and swing based on a friction pair structure, the glider comprising: a base configured for standing directly on the ground for load-bearing; a chair for bearing a user; and a friction pair installed between the base and chair and configured for providing relative movement of the base and chair.

A human support structure has: at least one support against which at least one part of a human body is borne; a base; a first motion transmitting assembly having first and second link members joined to each other and two components for pivoting movement around separate axes and defining a first unit; and a second motion transmitting assembly having third and fourth link members and two components joined together for pivoting movement around separate axes and defining a second unit. The first and second motion transmitting assemblies guide relative movement between the at least one support and the base. The first and second units can be selectively repositioned to change how relative movement between the at least one support and base is guided.

A seat support mechanism of a driving simulator for a four-wheeled automobile includes a lower frame (2) that is supported on a base (1) at one front point by a universal joint (6) and at two back points by cylinder actuators (5). The seat support mechanism further includes an upper frame (3) that is supported on the lower frame at one front point by a universal joint (8) and at two back points by cylinder actuators (7). The one front point and the two back points are arranged so as to form a substantially isosceles triangle that has the one front point as the apex, and a seat is mounted on and fixed to the upper frame.