System For Fastening A Rail To A Fixed Bottom Support, And Fastener For A Rail
a technology of fixing support and rail, which is applied in the direction of railway tracks, roads, constructions, etc., can solve the problems of limiting the freedom of design and configuration, and achieve the effects of simple installation, large degree of freedom, and great practical utility
Inactive Publication Date: 2012-02-09
VOSSLOH WERKE GMBH
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- Application Information
AI Technical Summary
Benefits of technology
"The invention is a system for fastening a rail to a fixed bottom support using a plastics material base plate and an elastic intermediate layer. The system includes a carrier plate to even out the support and minimize wear on the elastic layer. The base plate is produced from a plastics material, which is lighter than steel or cast iron, and can be shaped to meet specific needs. The system also includes a resilient member to hold down the rail and a hold-down sleeve to ensure the base plate is only loaded by a maximum force. The system can be easily installed and is suitable for adjusting track gauge. The invention provides a simple and effective solution for fastening rails to fixed supports."
Problems solved by technology
It is a disadvantage of the known ECF system for fastening a rail in place that the base plate is high in weight and also limits the freedom which exists when designing and configuring it because of the steel material which is used to produce it.
Method used
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Embodiment Construction
[0052]The system 1 for fastening a rail S to a fixed bottom support 2 which is formed in the present case by a concrete sleeper (not shown) comprises a base plate 3 made of a plastics material, an intermediate layer 4 made of an elastically yielding material which is to be arranged below the base plate 3, a carrier plate 5 which is to be arranged, below the intermediate layer 4, on the fixed bottom support 2, four eccentric sleeves 6a, 6b, 6c, 6d which have associated with them respective fastening bolts 7a, 7b, 7c, 7d which act as fastening members, two resilient members 8a, 8b, two adapter pieces 9a, 9b, and two clamping bolts 10a, 10b.
[0053]Seen in plan, the base plate 3 made of plastics material is of an elongated bone-like shape. Its outer regions 3a, 3b which adjoin respective ones of its narrow sides are of a considerably greater width B in this case, measured in the direction of the longitudinal extent L of the rail S which is to be fastened in place, than its central regio...
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The invention provides a system for fastening a rail in place and a rail fastener which, while being simple to install, allow a large measure of freedom in the production of the components required and at the same time have great practical utility. To this end a system according to the invention for fastening a rail to a fixed bottom support comprises: a base plate produced from a plastics material, an intermediate layer which is arranged between the base plate and the fixed bottom support, a carrier plate which is arranged between the intermediate layer and the bottom support, a resilient member to hold down the rail which is to be fastened in place, a clamping bolt to brace the resilient member against the base plate, and a fastening member for fastening the base plate to the fixed bottom support.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 12 / 607,599, filed on Oct. 28, 2009, which is hereby incorporated by reference in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to a system for fastening a rail to a fixed bottom support which is typically formed by a concrete sleeper or a concrete slab. Such systems are intended to be inexpensive to manufacture, to be able to be installed easily and at the same time to function safely and reliably for as long a time as possible.[0004]2. Brief Description of Related Art[0005]Known in practice is a rail fastening system offered under the name “ECF” in which the rail stands on the supporting surface of a base plate made of steel. At its longitudinal sides which are aligned in the longitudinal direction of the rail which is to be fastened in place, the supporting surface is bounded by respective ribs against which the fo...
Claims
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IPC IPC(8): E01B9/38E01B9/44
CPCE01B9/483E01B9/38E01B9/42
Inventor BOSTERLING, WINFRIEDRADEMACHER, LUTZBEDNARCZYK, ADRIANHUNOLD, ANDREHARRAMICHAEL
Owner VOSSLOH WERKE GMBH