Virtone - mechanism

The handle located to the user's left is used to adjust the backrest tilt, allowing the function to be adjusted comfortably and ergonomically, without needing to lean forward. The synchronous mechanism has 4 locking levels with backrest tilt adjustment ranging from 90° to 140°. The synchronous mechanism allows for simultaneous tilting of the backrest and seat in appropriate proportions. This keeps the body in an ergonomic position even when changing positions, increasing comfort and relieving strain on the spine.

The tilt angle lock allows the backrest to be held in the desired position. This is particularly important during tasks requiring concentration, where a stable body position increases the precision of tasks performed. Proper adjustment improves body weight distribution, increases comfort, and supports ergonomic pelvic alignment.

 

 

The elongated ergonomic knob located under the seat on the right side is used to adjust the backrest tilt tension, which is adapted to the user's weight. This is an extremely important adjustment, as setting the backrest tilt tension too high for light users (approx. 45 kg) causes leg muscle tension and nerve compression leading to pain. On the other hand, heavier users (approx. 90-120 kg) need stronger tilt tension, as setting it too low will cause an unexpected maximum backward tilt and excessive tension in the front part of the legs. The resistance force adjustment allows the pressure needed to tilt the backrest to be matched to the user's weight and preferences. This ensures smooth and controlled movement, and the backrest provides stable support without the effect of a sudden tilt for heavier individuals or excessive resistance for lighter individuals.

The anti-shock mechanism protects the user from a sudden return of the backrest after unlocking. This prevents the backrest from hitting the back, and the change of position is smooth and safe, increasing comfort and caring for the spine. To unlock the mechanism again and set the backrest in the desired position, lean against the backrest and gently push it backward – this allows you to adjust the tilt angle to your needs again.