The working principle of a PU ergonomic chair is based on its design features and components that provide comfort, support, and adjustability to the user. Here are the key aspects of the working principle of a PU ergonomic chair:

Ergonomic Design: PU ergonomic chairs are designed to support the natural curves and alignment of the human body, particularly the spine. The chair typically features a contoured backrest that follows the shape of the spine and provides lumbar support to maintain proper posture. The seat is also designed to distribute body weight evenly and reduce pressure points.

Adjustable Features: PU ergonomic chairs offer various adjustable features to accommodate different body types and sitting preferences. These features may include adjustable seat height, backrest height and angle, armrest height and width, and seat depth. By allowing users to customize the chair's settings, it promotes optimal comfort and support for individual needs.

PU Material: PU (polyurethane) is a synthetic material commonly used for the upholstery of ergonomic chairs. It is known for its softness, durability, and ease of maintenance. The PU material on the chair's seat and backrest provides a comfortable seating surface and is designed to withstand prolonged use without losing its shape or cushioning properties.

Swivel and Mobility: PU ergonomic chairs typically have a swivel base that allows users to rotate the chair 360 degrees. This feature enables easy movement and access to different areas of the workspace without straining or overreaching. Additionally, most chairs are equipped with smooth-rolling casters that facilitate effortless movement on various floor surfaces.

Weight Distribution and Stability: The design of a PU ergonomic chair ensures that the user's weight is evenly distributed across the chair's frame and base. The sturdy frame and base construction provide stability and prevent the chair from tipping or wobbling during use, promoting a safe and secure seating experience.

Cushioning and Padding: The seat and backrest of a PU ergonomic chair are typically padded with foam or other cushioning materials. The padding provides additional comfort, helps alleviate pressure points, and absorbs shock or impact when sitting for extended periods.

Supportive Features: PU ergonomic chairs often include additional supportive features to enhance user comfort. This may include adjustable headrests, lumbar cushions, or adjustable armrests. These features provide extra support to specific areas of the body, reducing strain and fatigue.

Overall, the working principle of a PU ergonomic chair revolves around providing optimal comfort, support, and adjustability to the user. The chair's design, adjustable features, PU material, and supportive components work together to promote healthy sitting posture, reduce discomfort, and enhance productivity and well-being during extended periods of sitting.