Office Chair Function Illustration

The functions of an office chair mainly include adjusting the backrest hardness, adjusting the chair height, and the locking and unlocking functions. Here is a detailed illustration for you:

Adjusting the Backrest Hardness

• Knob Adjustment Type: Adjustment knobs can usually be found on the side or bottom of an office chair. When you need to increase the backrest hardness, turn the knob clockwise. At this time, the backrest will gradually tighten, and the angle will be relatively fixed, providing stronger support for the back. This is suitable for scenarios where you need to maintain an upright sitting posture for focused work or long meetings. Conversely, if you want the backrest to be softer, turn the knob counterclockwise. The backrest will become looser, and you can lean on it, allowing the backrest to tilt backward to the desired angle according to your own strength. This is more comfortable for resting or relaxing.
• Gas Cylinder Adjustment Type: Sit on the chair and pull up the adjustment lever with your hand. Your body can lean backward, and the backrest will tilt backward to a suitable angle along with your body movement. Then, release the adjustment lever to fix the angle. This adjustment method allows you to quickly find a comfortable backrest tilt angle. If you want to return to the original angle, pull up the adjustment lever again, sit upright forward, and the backrest will return to its original position. The operation is simple and convenient.
• Handle Adjustment Type: Some office chairs are equipped with handles on the outer sides of the seats. Pull the handle upward, and the backrest can tilt backward, which is convenient for users to take a short rest or adjust their sitting posture. Push the handle downward, and the backrest will move forward and return to its initial upright position, meeting the needs of normal office work.

Adjusting the Chair Height

Office chairs are generally adjusted in height using a gas cylinder. There is a rotating lever under the chair for adjustment. Rotating the lever up and down can adjust the height. Rotating the lever upward will raise the chair, which is suitable for taller users or those who need to maintain a suitable distance between the work surface and their body. Rotating the lever downward will lower the chair, which is convenient for shorter users or those who want to lower their center of gravity to obtain a more stable sitting posture. By reasonably adjusting the chair height, users can keep their feet flat on the ground, their thighs parallel to the ground, and their knees at an angle of about 90°, maintaining a comfortable sitting posture.

Locking and Unlocking Functions

The locking and unlocking functions of an office chair are mainly achieved through a rotating lever. Push the rotating lever inward, and it will lock, fixing the current state of the chair. For example, after adjusting the backrest angle or chair height, the locking function can ensure that the chair will not change randomly due to external forces during use, ensuring stability and safety. Pull the rotating lever outward, and it will become ineffective, releasing the locked state of the chair. At this time, you can perform various adjustment operations on the chair.