DEVICE FOR LIMITING ROLLBACK AND ADJUSTMENT PART OF DEVICE Russian patent published in 2021 - IPC F41A25/00 

FIELD: mechanics.

SUBSTANCE: device for fixing the limit rollback contains a sensor for indicating the limit rollback, an indicator connected to the sensor, a part fixed to the breech and causing the indicator to move during rollback. The sensor is fixedly mounted on the cradle, while a curved two-armed lever is fixed on the axis fixed to the cradle. One of the arms is located opposite the sensor rod, and a roller is installed on the other arm of the lever, so that the inclined edge of one of the protrusions of the regulating part fixed on the breech and made with the possibility of a stepwise change in the position of the face when it is replaced by another face of the part relative to the initial position by rearranging the part, interacts with it when rolling back. The regulating part with its working element, namely the inclined edge, acts on the working element of the transmission link - a two-armed lever in the form of a roller, causes the rotation of this lever and the sensor is triggered when the maximum rollback is reached. The adjusting part has the shape of a rectangular plate with two working rectangular protrusions shifted relative to each other in the recoil direction and rotated by 45 relative to the plane of the plate. By installing the leash in one of 4 possible positions of the sides of the square projections, a change in the stroke of the sliding parts is achieved until the sensor of the device for fixing the maximum rollback is triggered.

EFFECT: invention provides remote fixation of the maximum rollback of the implement, simplification of adjustment due to the use of a regulating part.

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