Hand-held hydraulic pressing apparatus
AssigneeGustav Klauke GmbH
InventorEgbert Frenken
Life of this patent
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Abstract
The invention is concerned with a hand held hydraulic pressing apparatus (1) with a hydraulic cylinder (8), in which a hydraulically actuated piston can be displaced to carry out a pressing or cutting operation. The apparatus has a piston head (5) and a piston shank (16), the piston shank (16) being connected to a tool carrier (10). The tool carrier (10) is part of an inter-changeable apparatus head (9). In order to simplify to change the apparatus head, the invention proposes, that an interchangeable apparatus head (9) has in each case a piston shank (16) with a return spring (22).
Claims16
Hand-held hydraulic pressing apparatus (1) comprising a hydraulic cylinder (8);
- a piston head (5) which is disposed in said hydraulic cylinder;
- and an interchangeable apparatus head comprising a tool carrier (10) and a piston shank (16) which extends from said tool carrier, said piston shank being connected to said tool carrier and selectively contactably engageable and disengageable from said piston head, said piston head and said piston shank forming a piston when said piston shank is engaged with said piston head, said piston being displaceable to carry out a pressing or cutting operation, said hand-held hydraulic pressing apparatus further comprising a return spring which is earned on said piston shank, said return spring being held captive on said piston shank and being configured to bias said piston.
Hand-held pressing apparatus according to claim 1, or claim 3, characterized in that the piston head (5) has a centering recess (14) on the piston shank side and that the piston shank (16) has a centering projection (24) on the piston-head side.
Dependencies are inferred from the claim text.