초록 ▼

A percussion tool, such as a drill or a chisel tool, including a percussion mechanism (7), a tool chuck (1), and a damping member (8) arranged between the tool chuck (1) and the percussion mechanism (7) for damping rebounds of a header (9) axially displaceable in the tool chuck (1), with the damping

A percussion tool, such as a drill or a chisel tool, including a percussion mechanism (7), a tool chuck (1), and a damping member (8) arranged between the tool chuck (1) and the percussion mechanism (7) for damping rebounds of a header (9) axially displaceable in the tool chuck (1), with the damping member (8) having, arranged one after another in the operational direction, a stop disc (86), an elastic ring (83), and a transmission element (81) having a cavity for receiving both the stop disc (86) an the elastic ring (86).

대표청구항 ▼

[ What is claimed is:] [1.] A percussion tool, comprising a tool chuck (1) including a header (9) displaceable in the tool chuck (1); a percussion mechanism for impacting the header (9) and including a guide cylinder (73); and a damping member (8) for damping rebounds of the header (9) and cooperati

[ What is claimed is:] [1.] A percussion tool, comprising a tool chuck (1) including a header (9) displaceable in the tool chuck (1); a percussion mechanism for impacting the header (9) and including a guide cylinder (73); and a damping member (8) for damping rebounds of the header (9) and cooperating with a stop surface (92) which is provided between a rear, with respect to an operational direction of the percussion tool, end of the header (9) and a stop (74) defined by the guide cylinder (73) of the percussion mechanism, the damping member (8) including a stop disc (86), an elastic ring (83) arranged, in a direction opposite to the operational direction of the percussion tool, after the stop disc (86), and a transmission element (81) having a cavity for completely receiving both the stop disc (86) and the elastic ring (83),wherein the stop disc (86) is supported in the receiving cavity of the transmission element, (81) for a limited axial displacement therein,wherein the transmission element (81) comprises means for preloading the elastic ring (83) in the receiving cavity,wherein the preloading means comprises a locking member (84) form-lockingly cooperating with the transmission element (81), the locking member (84) limiting the axial displacement of the stop disc (86);wherein the locking member is formed as a snap ring projecting into an annular indentation formed in the receiving cavity of the transmission member (81), andwherein the stop disc (86) defines, at a front end of the damping member (8) a guide region (85) having an outer diameter, which substantially corresponds to an inner diameter of the snap ring, and an axial extension greater than a width (B) of the snap ring measured in the operational direction.