Office Chair with Springs

There are various types of office chairs with springs, commonly including single-spring bases, dual-spring bases, adaptive bases, and fiberglass bases, each with its own characteristics.

Single-spring base: This type of base is equipped with only one spring. Its characteristics include being relatively easy to use in the first half of the recline, but more strenuous in the latter half, with a short travel distance and uneven spring force distribution. Due to this uneven spring force, prolonged use of office chairs with this type of base can easily cause fatigue for the user, making it typically suitable for scenarios where the recline function is not heavily required and usage time is short.

Dual-spring base: Compared to a single-spring base, a dual-spring base has an additional spring to assist in controlling the force. This improvement effectively solves the problem of uneven resistance during recline, resulting in better stability and a more comfortable sitting experience for the user. For example, chairs from well-known brands such as Haworth Fern and Takada Butterfly use this type of base, and the Goerli P6 ergonomic chair also employs a dual-spring gravity-sensing base, providing users with a good experience.

Adaptive base: An adaptive base can automatically adjust the recline force according to the user's weight, allowing it to accommodate people of different weights to a certain extent. However, when the user's weight exceeds the normal range, its adjustment function may not be precise enough, leading to a decrease in comfort. Many chairs from Yongyi use this type of base design.

Fiberglass base: Also known as a dual-fiberglass spring base, a fiberglass base exhibits relatively small deformation throughout the recline travel distance when the chair back reclines, with uniform recline resistance. However, due to differences in production processes and material selection among different manufacturers, the experience of this type of base may vary significantly. Chairs such as the Herman Miller Aeron and Sihoo Doro S300 use this type of base, providing users with a unique sitting experience.

In addition, some office chairs are equipped with springs in specific parts. For example, the lumbar support of the enova Alloy Master S Edition office chair, combined with a telescopic spring, can provide stable support for the waist and effectively relieve waist fatigue.