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Steering links

a technology of steering link and rail, which is applied in the direction of carriages, passenger carriages, railway components, etc., can solve the problems of significant length of any set of wagons completely redundant, large inventory, and high cost, and achieves the effect of easy manufacturing of parts and small inventory

Inactive Publication Date: 2009-05-28
SCT EURO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a steering link assembly for a vehicle, which includes an elongated link with T-shaped heads at each end and an anchor for each end. The anchor has a chamber for receiving a spring, which acts on the end face of one head and the back face of the other head. This arrangement allows for telescopic contraction and extension of the link assembly. The link assembly is easy to manufacture and assemble, and requires only one spring for each anchor. The link may have hard stops to limit its movement. The invention also includes a container wagon with steering links for each wheel set, which are extendable and have compression springs. The steering link controls and limits the movement of the wheel sets relative to the frame."

Problems solved by technology

For historical reasons many of the bridges and structures extending over the rail in the network are too low to receive containers on wagons with beds at the normal wagon height.
This however rendered a significant length of any set of wagons completely redundant.
However, these new wheel sets are much more sensitive to cornering forces and the current arrangements experience significant wheel wobble.
Self-steering bogies are known, but these tend to be quite expensive to configure.

Method used

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Examples

Experimental program
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Embodiment Construction

[0021]A wagon for containers is generally indicated at 10. It includes a pair of bogies 11, having 577 mm diameter wheels 12, and a deck 13 which is carried on side bearers 14 of the bogies 11. The deck height is 730 mm above the rail level.

[0022]Referring particularly to FIG. 2, the bogie 11 includes a frame 15, which is suspended on wheel sets 16, by respective suspensions 17. The frame is cranked at 18 to allow for a low position of the side bearers 14.

[0023]Steering links 19 are provided to extend respective fixed points 20 on the frame 15 and the respective axle boxes of respective wheel sets 16.

[0024]Each steering link 19 can be extended and contracted in a controlled manner in response to longitudinal displacement of the associated wheel 12 so as to simultaneously allow a degree of movement, but in a controlled fashion.

[0025]Thus, whilst a bogie is going round a curve on a rail, those wheels which are travelling on the inner part of the curve will tend to move in a sense to c...

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Abstract

This invention relates to steering links for bogies and to wagons incorporating such bogies, a variable length steering link assembly for a bogie including an elongate link having a generally T-shaped head at each end and an anchor for each end, wherein each anchor defines an axially extending chamber for slidably receiving a respective head an a compression spring wherein in one chamber the spring acts on the end fact of its associated head and in the other chamber the spring acts on the back face of its associated head.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority to U.S. Provisional Application No. 61 / 004,355, filed Nov. 27, 2007, which is hereby incorporated by reference.FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not Applicable.TECHNICAL FIELD[0003]This invention relates to steering links for bogies and to wagons incorporating such bogies.BACKGROUND OF THE INVENTION[0004]There is a significant need for wagons which can carry containers throughout the rail network in the United Kingdom and elsewhere in the world. For historical reasons many of the bridges and structures extending over the rail in the network are too low to receive containers on wagons with beds at the normal wagon height. The initial approach was to form the rail equivalent of a low loader with a low bed spanning between the bogies of the wagon. This however rendered a significant length of any set of wagons completely redundant. Proposals have been made to overcome this problem by reducing t...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B61F5/42
CPCB61F5/38B61F5/301
Inventor AITKEN, ALANTAYLOR, DAVIDJAMIESON, WAYNE
Owner SCT EURO