Principles of a mechanical shaker for coffee harvesting

Abstract

Portable vibrating tool for the harvesting of olives, almonds, coffee beans and other fruits comprising a vibrating body (2) and an extension rod (3), and characterised by the fact that it is provided with devices to generate a vibrating motion in high-frequency modulation and devices to clamp the branches of the fruit trees to vibrate. The result of these operations is very effective: they cause the rapid detachment of the fruits from the tree without transmitting them high values of the angular momentum, and, consequently, without scattering them around the ground. The invention also performs clamping and vibrating operations without damaging the tree. Moreover, the tool has anti-vibrating systems (11) to avoid the transmission of the vibrations to the operator. Lastly, the tool can be characterised by a movable handle (14), which allows the operator to adjust the height and the inclination of the tool.