Office Chair Brake Principle

The brake principles of office chairs vary depending on the type, with common types and their principles as follows:

Light-duty caster dual-brake mechanism: This is a dual-locking mechanism specifically designed for office chairs, with its core being the ability to simultaneously lock the rolling and rotational degrees of freedom of the wheels. When the user steps on the brake pedal, the cam mechanism comes into play. The cam mechanism simultaneously acts on the friction surface on the outer edge of the wheel and the positioning teeth of the steering bracket, achieving dual locking of the wheel through the dual effects of friction and positioning. This design makes the office chair more stable when it needs to be fixed in position, preventing sliding or rotation.

Gravity brake wheels: These brake wheels utilize the user's body weight to achieve automatic locking and unlocking. When a person sits on the chair, their body weight exerts a certain pressure on the chair, which triggers the locking mechanism of the gravity brake wheels, automatically locking the wheels and preventing the chair from sliding. When the person gets up and leaves the chair, the pressure disappears, and the wheels automatically unlock, restoring the ability to slide. Some Ergomax office chairs adopt this gravity-locking design. When the user leaves the seat, the air pressure rod at the base automatically locks the casters, and when sitting down, it unlocks, making it very convenient to use.

Hand-pressed locking wheels: This braking method controls the locking of the wheels through manual buttons or levers on the side or bottom of the chair. In some high-end or custom-made Ergomax office chairs, the user only needs to find the lever on the side of the seat base, pull the lever upward to lock the casters, keeping the chair stationary; pull the lever downward to unlock the casters, allowing the chair to slide freely. This design allows the user to control the movement and fixation of the chair at any time according to their own needs.

Foot-pedal brake wheels: The operation of foot-pedal brake wheels is more convenient. The user only needs to step on the pedal device on the wheels to achieve locking of the wheels. Its advantage lies in the fact that it does not require bending over to operate, which is very practical for users who have difficulty bending over.

Touch-sensitive induction brakes: Commonly found in high-end ergonomic chairs, they automatically adjust the resistance of the wheels by sensing human contact. When a person sits down, the chair senses the human contact and restricts the sliding range of the wheels, making the chair more stable; when the person gets up, the chair returns to a flexible moving state, facilitating the user's movement.