High-End Office Chair Chassis
Mid-to-high-end office chair chassis mainly include single-spring chassis, dual-spring chassis, adaptive chassis, and fiberglass chassis (dual fiberglass spring chassis).
The single-spring chassis offers ease in the initial sitting phase but becomes strenuous in the latter half, with a short travel distance and uneven spring force. This is because the spring force of a single spring changes relatively uniformly under stress, failing to provide even support throughout the entire reclining process. Prolonged use can easily lead to fatigue and is generally suitable for scenarios with low comfort requirements and infrequent use.
The dual-spring chassis incorporates an additional spring to assist in controlling the force, resolving the issue of uneven resistance during reclining. It offers better stability and a more comfortable sitting experience. Some office chair companies have also independently designed it to provide more functional adjustments. For example, chairs like the Haworth Fern and Takada Butterfly use this type of chassis. The synergistic effect of the dual springs ensures relatively stable support at different reclining angles, meeting the diverse needs of users.
The adaptive chassis can automatically adjust the reclining force based on the user's weight, allowing users of different weights to have a relatively suitable reclining experience. However, when the weight exceeds the normal range, the adjustment may not be precise, and comfort may be compromised. Chairs from Yongyi often use this type of chassis, which is suitable for users with a normal weight range who seek convenient adjustments.
The fiberglass chassis (dual fiberglass spring chassis) has minimal deformation during chair back reclining throughout the entire travel distance, with uniform reclining resistance. It is a commonly used chassis technology in current high-end ergonomic office chairs abroad. However, there is no unified standard for fiberglass production processes, resulting in significant differences in user experience among different manufacturers. Chairs like the Herman Miller Aeron, Sihoo Doro S300, and Sihoo C500 Second Generation use this type of chassis. Among them, the Sihoo C500 Second Generation employs carbon-fiberglass composite springs, which are high-end chassis technology, offering an excellent reclining experience and providing users with ultimate comfort.
