Patent ID: 7228787

Claim:
A joining connection for functional parts of hydraulic or pneumatic operating devices, the joining connection comprising a first part of a hydraulic or pneumatic operating device having an outer wall section and a second part of a hydraulic or pneumatic operating device having an inner wall section, which parts can be joined together and connected to each other with mutually overlapping wall sections, with the sections are overlapping with a transition fit or a clearance fit, wherein both wall sections comprise a depression, which in the connected state form a cavity being filled with a casting compound of plastic, which is plasticised and fluid by means of heating, and which after its hardening or solidification withstands shear force loads of at least 20 N/mm 2 and connects the two parts to each other by means of a positive form fit, and wherein one of the parts comprises a filling or injection opening for the casting compound, which opening leads via a casting channel into the corresponding depression.