Pneumatic brake cylinder
AssigneeKnorr-Bremse Systeme FüR Schienenfahrzeuge GmbH
InventorsMarc-Gregory Elstorpff, Christian Ebner, Michael Mathieu, Erich Fuderer
Life of this patent
Estimating the term…
Abstract
The invention relates to a pneumatic brake cylinder including a housing, a piston that can be moved in the housing and is used to transfer the pneumatic pressure to a brake, and a device for automatic adjustment in the event of wear of the brake linings, the device including a spindle, an adjusting nut, and a piston tube that can be engaged with the adjusting nut. According to the invention, a torque applied to the piston tube by the adjusting nut is introduced by the piston tube directly into elements connected to the housing in a fixed manner.
Claims8
A pneumatic brake cylinder comprising:
- a housing;
- a piston which can be moved in the housing to transmit pneumatic pressure to a brake;
- and
- a device for automatic adjustment for wear of brake linings, the device including a spindle, an adjusting nut and a piston tube which can be brought into engagement with the adjusting nut,
- wherein a torque applied by the adjusting nut to the piston tube is introduced by the piston tube directly into elements which are connected fixedly to the housing,
- wherein the elements connected fixedly to the housing are configured as sliding blocks which slide in slots of the piston tube,
- wherein orientation of the housing and the device for automatic adjustment are configured such that the device for automatic adjustment is mounted to the housing prior to insertion of the elements fixedly connected to the housing into the brake cylinder housing, and
- wherein a control sleeve is arranged in the piston tube, the control sleeve being a composite part with a sliding sleeve made from plastic and an injection molded coupling ring made from metal, and wherein, at a free end, the injection molded coupling ring has an oblique internal toothing system which is configured to engage an external toothing system of the adjusting nut.
Dependencies are inferred from the claim text.