Two-Way Office Chair Structure
The structure of a two-way office chair includes key components such as casters, chair legs, gas lift cylinders, bases, seats, armrests, seat-back connections, backrests, lumbar pillows, headrests, trays, and leg supports.
Casters are the parts of the two-way office chair that come into contact with the ground. There are two types: regular casters and PU casters. PU casters are made of soft materials and are suitable for use on wooden floors and in computer rooms, as they do not scratch the ground.
Chair legs are usually made of iron frames, and their thickness significantly impacts the chair's lifespan. The surface treatment methods are diverse, including painting, baking finishes, and electroplating. Among them, chair legs with high-quality electroplating are less likely to rust, extending the chair's service life.
The gas lift cylinder, also known as a telescoping rod, is a crucial component for adjusting the chair's height and enabling rotation. Users can easily adjust their sitting posture according to their needs, enhancing office comfort.
The base supports the seat and is connected to the gas lift cylinder below, playing a role in supporting the entire chair. It needs to have sufficient strength and stability to ensure the chair's safety during use.
The seat is composed of wood panels, sponges, and upholstery. Although the quality of the wood panels may not be immediately noticeable, it affects the overall structure of the chair. Sponges are divided into recycled and new ones, often used in combination. An appropriate thickness and hardness provide a comfortable sitting experience. The upholstery options include linen, mesh, and leather, among others. A plastic frame paired with mesh upholstery helps improve breathability.
The thickness of the armrests affects their quality, with thicker armrests being more durable. Some armrests also have functions such as left-right adjustment, height adjustment, and backward tilting to meet different user needs.
In the seat-back connection part, the seat and backrest adopt a split design and are connected by steel pipes or steel plates. The steel plates are usually 6mm or 8mm thick, and steel plates with a width of less than 6cm must be 8mm thick to ensure a stable connection.
The backrest is made of a steel frame or plastic frame combined with mesh, providing good breathability. The design of the lumbar pillow and headrest reflects the chair's comfort. An appropriate lumbar pillow can reduce fatigue from prolonged sitting, while the headrest is suitable for users who work for long hours. Some headrests can also be adjusted in height, tilt, and pillow surface angle.
The tray enables reclining and height adjustment functions. Some office chairs control the locking and unlocking of the backrest and overall height adjustment through a toggle on the right side of the seat cushion. The leg support is an optional component of some office chairs, which can be extended or retracted for user convenience during rest.
