Portable power tool
First Claim
1. Portable power tool comprising a housing for receiving a motor and an angled gear for driving a tool;
- a hollow spindle driven by said angled gear;
two flanges for clamping said tool therebetween and arranged at one end of said hollow spindle, a first one of said flanges being provided on said hollow spindle;
a clamping bolt arranged within said hollow spindle and having a first end and a second end opposite said first end, said first end facing said tool and comprising a second one of said flanges;
a manually actuable clamping device including two stops arranged coaxially around said hollow spindle and including at least one elastic element for forcing said two stops into opposite directions, a first one of said stops being axially fixed and a second one of said stops being axially displaceable by means of said elastic element, said clamping device further including a clamping lever being operably connected to said axially displaceable stop for shifting said axially displaceable stop between a first axial retaining position for retaining said tool and a second axial releasing position for releasing said tool;
a retaining element provided on said second end of said clamping bolt, said retaining element being impinged by said axially displaceable stop for retaining said tool non-rotatably when said axially displaceable stop is in said first retaining position and said retaining element being released when said axially displaceable stop is in said second releasing position.
1 Assignment
0 Petitions
Accused Products
Abstract
A portable power tool has, in order to drive a tool (12), a hollow spindle (14) to which the tool (12) can be fastened between two flanges (16, 18). The outer flange (16) is configured at the end of a clamping bolt (22) that is inserted through a central opening (17) of the tool (12) and projects at its other end out of the housing (42). The clamping bolt (22) can be non-rotatably secured at this end by means of a retaining element (20). For actuation, a clamping device (24) is provided, which can be moved, against the force of spring elements (26), between a clamped position in which the retaining element (20) is acted upon axially to clamp the tool (12), and a released position in which the tool is disengaged for manual changing. The spring elements (26) are arranged between an axial fixed stop (28) and an axially displaceable stop (FIG. 1).
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Citations
20 Claims
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1. Portable power tool comprising a housing for receiving a motor and an angled gear for driving a tool;
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a hollow spindle driven by said angled gear; two flanges for clamping said tool therebetween and arranged at one end of said hollow spindle, a first one of said flanges being provided on said hollow spindle; a clamping bolt arranged within said hollow spindle and having a first end and a second end opposite said first end, said first end facing said tool and comprising a second one of said flanges; a manually actuable clamping device including two stops arranged coaxially around said hollow spindle and including at least one elastic element for forcing said two stops into opposite directions, a first one of said stops being axially fixed and a second one of said stops being axially displaceable by means of said elastic element, said clamping device further including a clamping lever being operably connected to said axially displaceable stop for shifting said axially displaceable stop between a first axial retaining position for retaining said tool and a second axial releasing position for releasing said tool; a retaining element provided on said second end of said clamping bolt, said retaining element being impinged by said axially displaceable stop for retaining said tool non-rotatably when said axially displaceable stop is in said first retaining position and said retaining element being released when said axially displaceable stop is in said second releasing position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification