Office Chair Wheel Brake

There are various types of office chair wheel brakes, and the choice should be made based on the usage scenario and requirements.

Common Brake Types and Their Characteristics

1. Gravity Brake Wheels: These rely on the user's body weight to automatically lock and unlock. When a person sits on the chair, the wheels lock automatically due to gravity; when they stand up, the wheels unlock and restore flexible movement. Suitable for office scenarios where frequent movement and immediate fixation are required, such as situations where one needs to quickly switch work positions or take short breaks.
2. Hand-Pressed Locking Wheels: These are controlled by manual buttons or levers on the side or bottom of the chair to lock the wheels. Suitable for users who need to keep their position fixed for extended periods, such as scenarios where one needs to focus on work for a long time or prevent the chair from moving accidentally.
3. Foot-Pedal Brake Wheels: These are locked by pressing a pedal device on the wheels with the foot, eliminating the need to bend over. Suitable for people with mobility issues or those who prioritize convenience, such as the elderly or scenarios where the chair needs to be fixed quickly.
4. Touch-Sensitive Induction Brakes: These automatically adjust the wheel resistance by sensing human contact. When seated, they limit the sliding range; when standing up, they restore flexible movement. Commonly found in high-end ergonomic chairs, suitable for users who need to balance flexibility and stability.

Analysis of the Dual-Brake Braking Structure of Light-Duty Casters

1. Dual Locking Mechanism: This can simultaneously lock the rolling and rotational degrees of freedom of the wheels, providing higher safety and stability. Suitable for office environments that require precise positioning, such as hardwood floors or scenarios where standing desks are used.
2. Core Linkage Mechanism: When the brake pedal is pressed, a 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.
3. Material and Durability: High-quality dual-brake casters typically use a cold-rolled steel base and nylon-coated brake pads, which undergo rigorous durability testing to control brake force decay within a reasonable range. When choosing, pay attention to the anti-slip texture design of the brake pedal. Some high-end models are also equipped with a visible red indicator ring.

Applicable Scenarios and Selection Recommendations

1. Applicability of Dual-Brake Structures: Not suitable for all types of office chairs. For ergonomic chairs with synchronous tilt mechanisms, excessive brake torque may cause a jolt when leaning back. It is recommended for straight chairs at workstations or conference chairs.
2. Applicability of Single-Brake or Universal Wheels: More suitable for leisure negotiation chairs that require frequent movement, such as scenarios where one needs to quickly adjust positions or move flexibly.
3. Performance Standards: High-quality dual-brake light-duty casters should withstand over 100,000 repeated pedal tests, with brake force decay not exceeding 15%. Choosing polyurethane wheel surfaces can protect the floor and reduce noise.