Destemmer arrangement

A destemmer rotor for destemming bunches of fruit when the rotor is rotatably mounted in a destemming arrangement, the rotor comprising a cylindrical shaft and a plurality of destemming fingers attached to the shaft and extending away from the shaft in multiple adjacent planes perpendicular to the shaft, the fingers comprising a base and a portion extending outward from the base, wherein at least one finger is releasably attached to the shaft by an attachment mechanism comprising:

• a cavity in the cylindrical surface of the shaft, the cavity configured to receive the base of the at least one finger by radial insertion in said cavity, the cavity comprising a clamping portion
• a through-opening extending through the base of the at least one finger, the through-opening extending between an inlet section and an exit section of said through-opening, said through-opening being oriented radially relative to the shaft when the base of the at least one finger is inserted in the cavity
• at least two clamping legs which are part of the base of the at least one finger, and which are located at the lower end of the base and arranged around the exit section of the through-opening, wherein the at least two clamping legs are configured to be disposed in the clamping portion of the cavity when the base of the at least one finger is inserted in said cavity,
• a pin that is insertable in said through-opening, wherein
• a length of the pin is such that an end portion of the pin extends beyond the exit section of the through-opening when the pin is fully inserted in the through-opening,
• said end portion of the pin is wider than spacing between the at least two clamping legs so that the end portion is configured to push the at least two clamping legs apart when the pin is fully inserted in the through-opening thereby forcing the at least two clamping legs to be clamped in the clamping portion of the cavity by a clamping force,
• the pin comprises a head configured to define a full insertion of the pin by touching a seat on the base of the at least one finger, and enabling the grasping of the pin in order to retrieve the end portion of the pin from said spacing between the at least two clamping legs, thereby removing the clamping force.