Running gear for drop-frame rail vehicles

• US 5,415,107 A
• Filed: 07/12/1993
• Issued: 05/16/1995
• Est. Priority Date: 11/11/1991
• Status: Expired due to Term

• Current Assignee: DaimlerChrysler Rail Systems GmbH (Bombardier Incorporated)
• Original Assignee: ABB Henschel Waggon Union GmbH (Alstom SA)
• Inventors: Tutzauer, Rene
• Primary Examiner(s): Oberleitner, Robert J.
• Assistant Examiner(s): MORANO IV, SAMUEL J
• Application Number:
  US08/090,590
• Time in Patent Office: 673 Days
• Field of Search: 105/171, 105/180, 105/185, 105/199.1, 105/202, 105/218.2
• US Class Current: 105/218.2
• CPC Class Codes: B61F 3/16 with a separate axle for each wheel
• CPC Class Codes: B61F 5/325 The guiding device including swinging arms or the like to ensure the parallelism of the axles

Abstract

A running gear for drop-frame rail vehicles includes a running-gear frame on which individual wheels are each rotatably mounted through a respective rocker and the rocker is fastened in an articulated manner and supported through primary springs. The connection of the running-gear frame to the carriage body of the drop-frame rail vehicle is provided through two articulated rods which are mounted on a crossmember of the running gear frame and which are fastened to the carriage body. The carriage body is supported on the running-gear frame through secondary springs which are mounted in pockets of the transverse ends of the crossmembers. Transverse stops which are disposed in the crossmember limit the transverse movement of the carriage body in relation to the running gear. Advantageously, the individual wheel and the drive of the individual wheel are mounted in the rocker in such a manner as to be connected to form a structural unit. This structure provides running gears for drop-frame rail vehicles in which the drop-frame nature of the carriage body is completely preserved and only wheel cases are present in the region of the individual wheels of the running gear.

Claims

1. In a drop-frame rail vehicle having a carriage body, a running gear comprising:

a running-gear frame having a crossmember, said crossmember having transverse ends with pockets formed therein;

rockers articulatingly fastened to said crossmember, primary springs each supporting a respective one of said rockers on said crossmember, individual wheels each being rotatably mounted in a respective one of said rockers;

two articulated rods each having one end being articulatingly mounted at a distance from one another on said crossmember and another end to be articulatingly fastened to the carriage body, for connecting the running-gear frame to the carriage body;

secondary springs mounted in said pockets for supporting the carriage body on said running-gear frame; and

transverse stops disposed at a distance from one another in said crossmember for limiting transverse movement of the carriage body relative to the running gear, wherein said wheels have axles, said transverse ends of said crossmember each have a short bracket pointing in the longitudinal direction of the running gear, and each of said rockers is a double-armed angle lever having a first end engaging on both sides around and being articulatingly mounted to a respective one of said short brackets, a second middle end engaging on both sides around a respective one of said wheels and carrying a respective one of said axles, and a third end having two interconnected arms bearing against a respective one of said primary springs.

2. The running gear according to claim 1, including brackets each being disposed on said crossmember and forming an abutment for a respective one of said primary springs for said rockers.

3. The running gear according to claim 1, including drives each being mounted in a respective one of said rockers and connected with a respective one of said wheels to form a structural unit.

4. The running gear according to claim 3, wherein said drives have housings, and including disc brakes for said wheels each being mounted on a respective one of said rockers and each acting on said housing of a respective one of said drives.

5. The running gear according to claim 1, wherein said articulated rods are spherically mounted.