ISOLATING shift shaft with the node contact pressure, consisting of several oncoming WOUND helical compression spring

摘要

1. The insulating rod (10) for switching input drive movement into the moving contact of the electrical contact system (5) of the switching device and for generating a contact force in the closed state of the contact system (5) housed in a cavity (13) a clamping device (22, 23, 24) for the drive member (16) of the stem (10) switching to maintain a contact force, characterized in that the clamping device (22, 23, 24) includes a node (22, 23, 24) are helical compression springs. ! 2. The insulating rod (10) switch according to claim 1, characterized in that the assembly (22, 23, 24) is a helical compression spring comprises a plurality of counter-wound helical compression springs (23, 24) that are nested in one another. ! 3. The insulating rod (10) switch according to claim 1 or 2, characterized in that the first helical compression spring (23) assembly (22, 23, 24) is a helical compression spring has an outer diameter that corresponds to the internal diameter of the cavity (13). ! 4. An insulating rod (10) according to claim 2 switch, characterized in that the drive element (16) has a drive pin (16), wherein the second helical compression spring (24) with an outer diameter that is smaller than the inner diameter of the first helical compression a spring (23) has an inner diameter which corresponds to the outer diameter of the drive pin (16). ! 5. The insulating rod (10) according to claim 3 switch, characterized in that the drive element (16) has a drive pin (16), wherein the second helical compression spring (24) with an outer diameter that is smaller than the inner diameter of the first helical compression a spring (23) has an inner diameter which corresponds to the outer diameter of the drive pin (16).