Stepping on Office Chair Wheel Brake
The wheels of office chairs can be locked through specific designs, with common methods including stepping on the brake lever or flipping a specific part, depending on the type of wheel.
Some office chair wheels employ a light-duty caster dual-brake mechanism, whose core principle is to achieve dual locking through mechanical linkage. When the user steps on the brake lever, the internal cam mechanism simultaneously acts on two key parts: first, the friction surface on the outer edge of the wheel, which increases friction to prevent the wheel from rolling; second, the positioning teeth on the steering bracket, which restrict the wheel's rotational freedom through a toothed structure. This design ensures that the chair cannot move forward or backward and cannot turn when locked, making it suitable for scenarios requiring a fixed position, such as focused office work or preventing accidental chair sliding that could pose safety hazards.
Another common design is wheels with a diameter of 60mm and a brake locking function, which are more intuitive to operate. These wheels typically have a movable locking component (such as a lever or clip) on the wheel body or bracket. When the chair needs to be fixed, the user simply needs to flip the component downward to engage it with the braking structure inside the wheel or on the bracket, thereby restricting both rolling and rotation simultaneously; to unlock, the component is flipped upward to restore the wheel's free movement. This design is often seen in scenarios requiring frequent switching between fixed and mobile states, such as meeting discussions or collaborative environments involving multiple people.
Both designs directly intervene in wheel movement through mechanical structures, rather than relying on electronic or hydraulic systems, thus offering the advantages of high reliability and simple maintenance. The dual-brake mechanism, due to its complex linkage mechanism, is typically used in high-end office chairs to provide a more stable locking effect; while the lever-type locking wheels, due to their convenient operation and lower cost, are widely used in mid- to low-end products. Users can choose the appropriate type based on actual needs: if the chair needs to be fixed for a long time, the dual-brake mechanism is superior; if frequent position adjustments are required, lever-type wheels are more efficient.
