Fengnan Office Chair Test
The Fengnan office chair test typically covers aspects such as back-push testing, impact testing, and back-push fatigue testing to ensure that the product meets ergonomic principles, safety, and comfort requirements.
Back-push testing: It is a crucial step in evaluating the comfort of office chairs and is divided into static and dynamic types. Static testing uses specialized sensors to measure the pressure values and support point distribution at various parts of the chair back when a person leans back statically. It focuses on the peak pressure, the uniformity of pressure distribution, and the match between the curvature of the chair back and the human spine. The generated pressure distribution map can visually reflect the support effect. Dynamic testing simulates the action of a person leaning back and evaluates the support stability of the chair back during dynamic processes. For example, a fixed office chair back-push testing platform can measure the back support force, rebound characteristics, and structural stability. Specific testing items include static pressure testing, dynamic fatigue testing, rebound performance testing, and force distribution testing. These data provide a scientific basis for optimizing the design of the chair back.
Impact testing: It simulates the impact scenarios that an office chair may encounter during actual use through an impact testing machine, including vertical impacts (such as heavy objects falling on the center of the seat surface), horizontal impacts (such as side impacts on the armrests or chair back), and dynamic fatigue impacts (such as cyclic impacts exposing structural weaknesses). The testing should be carried out in a constant temperature and humidity environment to exclude interference from environmental factors. After testing, it is necessary to evaluate whether the office chair has cracks or deformations in appearance, whether the structural integrity is compromised (such as loose connectors or frame fractures), and whether the functions are normal (such as whether the lifting and rotating mechanisms are stuck), ensuring that the product can withstand accidental impacts without failure.
Back-push fatigue testing: Designed according to the national standard GB/T 3325, it simulates the actions of a user leaning on and leaving the chair back multiple times to test the durability of the back connection structure (such as hinges and brackets) and the adjustment mechanism (such as height and angle adjusters). The testing process includes sample fixation, positioning of the force application point (usually the center of the chair back or the adjustment mechanism), parameter setting (such as the magnitude of the applied force, frequency, and number of cycles), with intermediate checks for loose parts. Finally, it evaluates the stability of the chair back, whether the adjustment functions fail, and whether the structural parts are damaged. This testing can effectively screen out early potential failures and extend the product's service life.
