Explanation of Office Chair Accessories
The accessories of an office chair mainly include the base, seat, backrest, lumbar and headrest pillows, armrests, gas lift, chair legs and casters, as well as small parts such as connectors and wood screws. Here is a detailed explanation:
Base: Located beneath the chair cushion, it is mostly a metal plate (some with a plastic shell) and serves as the core component connecting the gas lift to the backrest. Its functions include securing various components, enabling the recline function (such as adjusting the recline angle and tightness), and ensuring smooth recline movements. The design of the base directly affects the chair's adjustability and comfort.
Seat: Composed of three layers: a wooden board, foam, and fabric. The wooden board provides support as the base, and its quality is not easily perceptible directly. The thickness and density of the foam directly impact sitting comfort, with high-quality foam effectively dispersing pressure. The fabric includes options like linen, mesh, and leather, which should be chosen based on the usage scenario (e.g., mesh offers good breathability, while leather is easy to clean but has poorer breathability).
Backrest: Typically features a steel or plastic frame covered with mesh fabric to enhance breathability. The backrest is connected to the seat using angle brackets (made of steel pipes or plates, usually 6mm or 8mm thick) to ensure structural stability. The design of the backrest should conform to ergonomics to support the natural curve of the spine.
Lumbar and Headrest Pillows: The lumbar pillow reduces fatigue from prolonged sitting by fitting the curve of the waist, while the headrest provides support for the neck, suitable for long hours of office work or rest. Both are usually made of foam or memory foam and covered with breathable fabric.
Armrests: Their thickness directly affects durability, with thicker armrests dispersing arm pressure and reducing the risk of deformation. Some high-end armrests support height and angle adjustments to meet different usage needs.
Gas Lift: Also known as the lifting rod, it adjusts the chair's height through air pressure and supports 360-degree rotation. High-quality gas lifts should pass safety certifications (such as SGS, BIFMA) to avoid explosion risks.
Chair Legs and Casters: The thickness of the chair leg's iron frame determines its load-bearing capacity and lifespan, while the surface treatment process (polishing, painting, baking paint, electroplating) affects rust resistance. Casters are divided into ordinary wheels and PU wheels, with PU wheels being softer and suitable for wooden floors or computer rooms where scratching should be avoided.
Connectors and Wood Screws: Used to secure various components and ensure structural stability. During assembly, follow the instructions carefully to avoid looseness or abnormal noises.
