quick clamping device for a portable machine tool, portable machine tool, machine tool system and use of the application tool unit with a machine tool

摘要

the present invention relates to a quick clamping device for a portable machine tool (14a), which has an output shaft (12a-o) which can be rotated, particularly angle grinders, with at least one clamping unit (16a-o) ,, which for a tool-less attachment of an application tool unit (18a-o) to the output shaft (12a-o) has at least one clamping element (20a, 20a '; 20b; 20c ; 20d; 20e, 20e '; 20f, 20f'; 20g; 20h; 20i, 20i '; 20j, 20j'; 20k, 20k '; 20l; 20m; 20n; 20o) for a tightening action on the unit of application tool (18a-o) in a clamping position of the clamping element (20a, 20a '; 20b; 20c; 20d; 20e, 20e'; 20f; 20f '; 20g; 20h; 20i, 20i'; 20j , 20j '; 20k, 20k'; 20l; 20m; 20n; 20o). it is proposed that the clamping element (20a, 20a '; 20b; 20c; 20d; 20e, 20e'; 20f, 20f '; 20g; 20h. 20i, 20i'; 20j, 20j '; 20k, 20k'; 20l ; 20m; 20n; 20o) is formed by a positive fit joint, movable transversely to a rotation axis (22a-o) of the output shaft (12a-o), which is provided for fixing the application tool unit (18a-o), engage with a positive fit connection from behind at least a partial region of the application tool unit (18a-o).