EXCAVATOR BUCKET Russian patent published in 2014 - IPC E02F3/40 

FIELD: construction.

SUBSTANCE: excavator bucket has a hinged bottom, designed as a multipiece form from flaps (3 and 4) with catches (5 and 6) and a system for a catch pulling with a traction element driven by an external drive. All flaps are pivotally attached at one end to the rear wall (2), and at the opposite end to the front wall (1) by means of the catch. The catch pulling system is designed so that the catch of one of the flaps is kinematically linked with the subsequent flap by means of the traction element (8), so that the catch pulling of the previous flap occurs after turn of the subsequent flap relatively to its hinged fastening to the rear wall. Connection with the traction element driven by an external drive is made with the catch of the last flap.

EFFECT: device permits to reduce the dependences of the bucket ejection rate and mass of simultaneously falling material on its bulk weight, improve reliability and durability by providing opening at different times of the bottom flaps.

2 cl, 2 dwg