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Spring element and fire-resistant cover layer

A technology of spring elements and covering layers, applied in the direction of springs, springs/shock absorbers, springs made of plastic materials, etc., capable of solving problems such as danger, damage, and cracks in the covering layer

Pending Publication Date: 2021-11-09
GMT古米金属技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, cracks and other damage can form on the covering layer during prolonged use, posing the risk that the spring element will not be able to comply with the required fire protection properties

Method used

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  • Spring element and fire-resistant cover layer
  • Spring element and fire-resistant cover layer
  • Spring element and fire-resistant cover layer

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Experimental program
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Embodiment Construction

[0037] exist figure 1 with 4 A possible embodiment variant of the spring element denoted as a whole by 1 is shown in . The embodiment variants shown in the figures relate to conical springs 11 . Thus, the invention can be realized, for example, in a component for a main suspension in a chassis of a rail vehicle. However, the invention can also be realized, for example, in other components, in particular suspensions and / or shock absorbers for rail vehicles. The shown variants of embodiment are therefore to be understood only as possible examples and are therefore mainly used only for better elucidation of the invention.

[0038] The spring element 1 has a plurality of elastic damping bodies 2 which each support a flame-resistant covering layer 3 .

[0039] Suitable materials and compositions for producing the damping body 2 are already known and can also be used in connection with the invention. For example, damping bodies 2 made of one or more rubber materials are known. ...

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PUM

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Abstract

The invention relates to a spring element (1) for vibration damping and / or suspension of a rail vehicle, comprising at least one elastic damping body (2) and at least one fire-resistant cover layer (3) arranged on the damping body (2), the cover layer (3) having at least one compensation zone (4), wherein the compensation zone (4) is compressed in the loaded state of the spring element (1) such that wrinkling of the cover layer (3) is prevented, wherein the cover layer (3) and the damping body (2) are inseparably connected to form a composite element (6). The invention further relates to a cover layer and the use of a spring element or a cover layer.

Description

technical field [0001] The invention relates to a spring element for a shock absorber and / or suspension, which has at least one elastic damping body and a flame-resistant covering arranged on the damping body. [0002] The invention also relates to a fire-resistant covering for a spring element. Background technique [0003] Especially in the field of rail vehicles, the demands placed on the fire performance of the spring elements used are particularly high. For example, certain fire protection requirements according to DIN EN 45545-2 must therefore be met. However, since the mechanical demands on the spring elements, especially in the region of the chassis, are particularly high, it is often necessary to use damping bodies which can absorb impacts and / or oscillations particularly well and thus dampen them particularly well. Such an elastically designed damping body can thus be produced, for example, from a rubber compound which has a relatively high proportion of combusti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/371F16F1/40
CPCF16F1/40F16F1/371F16F2230/0023
Inventor J·克恩M·皮卡德M·迈尔E·吕埃森
Owner GMT古米金属技术有限公司
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