HRP20230819T1 - Actuating cylinder for rail vehicle brakes and rail vehicle brake with an actuating cylinder - Google Patents

Claims (13)

1. Actuator cylinder (100) for a railway brake, in particular for a magnetic railway brake, comprising a cylinder housing (10), a piston (11) guided by the cylinder housing (10) and a piston rod (12) connected to the piston (11), wherein the connecting rod (12) is made hollow and has an inner space (13), whereby in the inner space (13) of the connecting rod (12) there is arranged a traction means (14) movably guided in the axial direction (15) of the connecting rod (12), whereby the traction means (14), at the first end (16) secured in the inner space (13), has a stop section (17), configured to prevent the traction means (14) from slipping out of the connecting rod (12), whereby the traction means (14), at the second the end (18) protruding from the inner space (13) has a connection section (19) suitable for connection to a railway brake, and wherein the connection section (19) can be moved, and in particular can be deflected in relation to the stop section (17) ), characterized by the fact that the traction means (14) contains a flexible traction cable (28), wherein the stop section (17) is arranged on the upper end (16) of the traction cable (28) and the connection section (19) is placed on the lower end (18) of the traction cable (28), or by the fact that the traction means (14) contains a rigid and/or inflexible rod (43), whereby the traction means (14) has a cardan joint (44) or a ball joint, through which the connecting section (19) connected to the rod (43) flexibly relative to the rod (43). 2. Actuator cylinder (100) according to claim 1, characterized in that the inner space (13) has a lower region (23) and an upper region (21), wherein the diameter (22) of the lower region (23) of the inner space (13) ) smaller than the diameter (20) of the upper area (21) of the inner space (13), and thus, preferably, the diameter (26) of the stop section (17) is larger than the diameter (22) of the lower area (23) of the inner space (13). 3. Actuator cylinder (100) according to patent claim 1 or 2, characterized in that the traction means (14) is positioned so that it can rotate inside the piston rod (12), preferably around the axial direction (15). 4. Actuator cylinder (100) according to one of the preceding patent claims, characterized in that the stop section (17) is a flange (27) and/or a rotating part (24), especially a sleeve (25), wherein the stop section (17) has a lower contact surface (42) and wherein the inner space (13) of the connecting rod (12) has a bearing surface (38) for the contact surface (42) at the transition between the lower area (23) and the upper area (21), and/or thereby that the section (19) is for connecting the bushings, especially the bushing (40) for pressing. 5. Actuator cylinder (100) according to one of the previous patent claims, characterized in that the actuator cylinder is designed in such a way that the piston rod (12) is connected to the piston (11), when the piston (11) is actuated, especially by applying pressure, it is performed from the initial position (A) by the movement (46) of extension in the direction of the end position from the housing (10) of the cylinder. 6. Actuator cylinder (100) according to one of the previous patent claims, characterized in that the traction means (14) can be moved from the first position (B), in which the contact surface (42) is preferably in contact with the bearing surface (38) , in the second position (C), in which the contact surface (42) is preferably not in contact with the bearing surface (38), and especially opposite to the movement (46) of extending the piston (11), inside the connecting rod (12). 7. Actuator cylinder (100) according to one of the previous patent claims, characterized in that at least one, preferably at least two, and particularly preferably four, spring elements (31), especially compression coil springs (30, 30a, 30b) are provided, wherein the spring elements (31) are especially preferably designed to overload the piston (11) in the initial position (A). 8. Actuator cylinder (100) according to patent claim 7, characterized in that at least two spring elements (31) are provided, wherein the spring elements (31) are placed one behind the other in the axial direction (15), and wherein the compensatory plate (32) placed in the axial direction (15) between the spring elements (31). 9. Actuator cylinder (100) according to patent claim 7 or 8, characterized in that at least two spring elements (31) are provided, whereby a second spring element is placed inside the first spring element (31), especially inside the first compression coil spring (30a). element (31), especially the second compression coil spring (30b). 10. Actuator cylinder (100) according to one of the preceding patent claims, characterized in that the inner space (13) of the connecting rod (12) in the lower area (23) has a section (39) that expands conically towards the outside of the connecting rod (12). 11. Actuator cylinder (100) according to one of the preceding patent claims, characterized in that the traction cable (28) is a steel cable, preferably a wire cable (41). 12. Actuator cylinder (100) according to one of the previous patent claims, characterized in that the traction means (14) has a metal material, especially steel, and/or that the traction means (14) has plastic. 13. A railway brake, in particular a magnetic railway brake containing a friction pedal and an actuating cylinder (100) according to one of claims 1 to 12, characterized in that the section (19) for connecting the traction means (14) is connected directly or indirectly to the friction pedal, so that the friction pedal is suspended on the traction means (14), so that the friction pedal is movable in relation to the actuating cylinder (100), and especially that it bends in at least one horizontal direction (29).