Office Chair Structure Disassembly

The disassembly of an office chair's structure can start with its core components and functional modules. Different types of office chairs have varying structural designs, but they generally include basic parts such as the base, gas lift, chassis, seat and backrest, and armrests. Some high-end models are also equipped with functional components like electric adjustment and massage features.

I. Basic Structural Components

1. Base: As the main supporting body, most bases adopt a five-claw design to enhance stability, with materials often being metal or high-strength plastic. For example, the base of a typical swivel office chair disperses pressure through its five claws to ensure balance during rotation; the base of the Livorno Executive Chair S02 integrates a remote control and charging port, with metal strips on the sides to enhance aesthetics.
2. Gas Lift: Filled with inert gases such as nitrogen, the gas lift adjusts height via a control lever and is the core component for lifting and rotation. Its safety depends on the sealing and load-bearing capacity of the gas lift; poor-quality gas lifts may pose an explosion risk. During disassembly, raise the gas lift to its highest position and assist separation by shaking or tapping the chair foot with a rubber mallet.
3. Chassis: Serving as the hub connecting the seat and gas lift, the chassis is responsible for load-bearing and reclining functions. The Haworth Ergonomic Chair Fern achieves a linear feel during reclining with two large springs, with gear locking relying on a wire control connected to the rear teeth; the chassis of a typical swivel office chair transmits pressure through mechanical structures to support reclining actions.
4. Seat and Backrest: These directly affect comfort. Mesh backrests rely on tension and frame curvature for support, offering good breathability but tending to loosen over long-term use; the density and rebound rate of foam seats determine the distribution of buttock pressure, with high-density foam being more durable. The backrest of the Livorno Executive Chair S02 supports electric adjustment from 95° to 160°, with two sets of five airbags covering the back area providing three levels of massage intensity.

II. Functional Expansion Components

1. Armrests: Adjustable armrests can adapt to different sitting postures, reducing shoulder and neck fatigue; fixed armrests may cause discomfort due to arm suspension. Some high-end models support height, angle, or forward-backward adjustment of the armrests, and even integrate wireless charging functions.
2. Electric Adjustment System: For example, the headrest of the Livorno Executive Chair S02 supports electric adjustment from 0° to 60°, and the leg rest can be lifted with one button and联动 (this Chinese word means '联动' which means '联动' in English, here it means the leg rest moves in conjunction with) the seat moving forward to meet multi-scenario usage needs.
3. Additional Functions: Massage functions are achieved through airbags or rollers, and heating functions usually focus on the lumbar area to relieve fatigue. These functions rely on components such as motors and circuit boards and require regular inspection and maintenance to avoid malfunctions.

III. Disassembly Precautions
During disassembly, follow the principle of 'from the outside in, from the top down.' Prioritize separating external components such as the backrest and armrests before handling the gas lift and chair foot. Wear protective gloves when separating the gas lift to avoid cuts from metal parts; disconnect the power before disassembling electric components to prevent short circuits and circuit damage.