Working device having a hydraulic cylinder and manual working device such as a pliers or a press
AssigneeGustav Klauke GmbH
InventorEgbert Frenken
Life of this patent
Estimating the term…
Abstract
A hydraulically actuated working device having a hydraulic cylinder, a hydraulic piston that can be displaced in the hydraulic cylinder, a drive unit part which has a motor and a pump, and a hydraulic line leading to the hydraulic cylinder. The drive unit part is designed in an electrically insulating manner, to provide an electrically insulating separating layer, which passes through the working device in a crossing manner for electrical separation from the working device part with respect to an end of the hydraulic piston facing the drive unit part. The hydraulic line is guided through the separating layer, thereby also forming a partial region of the hydraulic line made of an electrically insulating material.
Claims19
A hydraulically actuated working device comprising:
- a hydraulic cylinder;
- a hydraulic piston which can be displaced in the hydraulic cylinder;
- a drive device part forming a handle region, the drive device part including a motor and a pump;
- a hydraulic line leading to the hydraulic cylinder;
- a working head adjoining the drive device part,
- a radial collar separating the handle region from the working head and protruding radially outward from the handle region, the radial collar being formed of an electrically non-conductive material.
A hydraulically actuated working device comprising:
- a hydraulic cylinder;
- a hydraulic piston which can be displaced in the hydraulic cylinder;
- a drive device part forming a handle region, the drive device part including a motor and a pump;
- a hydraulic line leading to the hydraulic cylinder;
- a working head adjoining the device drive part, the working head having a wall section;
- and
- a tapering region separating the handle region from the working head, the tapering region adjoining the handle region on a working head side and extending axially, the tapering region having a radial level of protrusion and an axial level of extension as thick as a finger or more, wherein the tapering region is limited on a first end by the device drive part and axially on a second opposite end by an electrically conductive radial section of the wall section of the working head.
A hydraulically actuated working device comprising:
- a hydraulic cylinder;
- a hydraulic piston which can be displaced in the hydraulic cylinder;
- a drive device part forming a handle region, the drive device part including a motor and a pump;
- a hydraulic line leading to the hydraulic cylinder;
- a working head adjoining the device drive part;
- a tapering region and a radial collar separating the handle region from the working head, the tapering region adjoining the handle region on a working head side and extending axially, the tapering region having a radial level of protrusion and an axial level of extension as thick as a finger or more, the tapering region being limited on a first end by the device drive part and axially on a second opposite end by the radial collar.
Dependencies are inferred from the claim text.