Patent ID: 6148930
Filing Date: 2000-11-21
Classification: B25D,B25F

Abstract:
A breaking and drilling hammer, havinga handle which is resiliently biased on all sides with respect to a hammer casing in a manner which permits limited movement of the handle with respect to the hammer casing;at least one rectilinear guide which connects the handle to the hammer casing and which extends parallel to a longitudinal axis of the hammer and along which the handle can be displaced to a limited extent with respect to the hammer casing both in a direction of the longitudinal axis of the hammer and in a direction transverse to the longitudinal axis;the rectilinear guide having an inner guide element and an outer guide element which surrounds the inner guide element at a distance;at least one elastic element being inserted between an outer circumference of the inner guide element and an inner circumference of the outer guide element, the elastic element contacting and resiliently biasing the inner and outer guide elements away from one another both in the direction of the longitudinal axis of the hammer and in a direction transverse to the longitudinal axis; whereinat least one stop plane, which is perpendicular to a longitudinal axis of the hammer, is formed on the inner guide element;the elastic element extends longitudinally between the stop plane and an end face of the outer guide element; and whereinthe elastic element extends longitudinally from the stop plane to the end face a greater distance than the elastic element extends between the inner guide element and the outer guide element, whereby the elastic element has a greater elasticity in the direction of the longitudinal axis of the hammer than in a direction transverse to the longitudinal axis; and wherein a second elastic element extends between a second stop plane, provided on the rear of the stop plane, and a second end face of the outer guide element, the end face being opposite the end face of the outer guide element.