Brakes – Position adjusters – Slack
Patent
1998-12-08
2000-09-19
Oberleitner, Robert J.
Brakes
Position adjusters
Slack
188203, F16D 6552
Patent
active
061198269
ABSTRACT:
A device for operating a machine element subject to wear-related play, especially for brakes of rail vehicles, includes a pressure-medium-operated piston-cylinder arrangement having a cylinder and operating piston, the piston rod of which is actively connected to a readjustment device that compensates for wear-related play. To realize a simple and compact structure and create further prerequisites for active integration into an operating system, the readjustment device comprises a readjustment piston mounted in the piston-cylinder arrangement between the operating piston and the bottom of the cylinder and acts as a limit stop for the operating piston. For axial arresting the readjustment piston, a coaxial piston rod shoulder that faces the bottom of the cylinder and a holding element resting on the bottom of the cylinder form an arresting arrangement that permits movement of the readjustment piston toward the operating piston and blocks a counter movement of the readjustment piston. A cylinder space created between the cylinder bottom and the readjustment piston is pressurized from an external source with a pressure medium via a pressure medium port to move the readjustment piston.
REFERENCES:
patent: 4088205 (1978-05-01), Frania et al.
patent: 4431089 (1984-02-01), Nadas et al.
patent: 4805740 (1989-02-01), Wilke et al.
Kemner Axel
Lehnert Erhard
Niederstadt Jorg
Stoffels Ralf
Lipka Pamela J.
Mannesmann AG
Oberleitner Robert J.
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