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Shaped rods and vehicle springs made from them

A bar, special-shaped technology, applied in the direction of vehicle springs, springs, vehicle parts, etc.

Active Publication Date: 2017-11-28
HENDRICKSON COMML VEHICLE SYST EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with thermally deformed vehicle springs from flat bar steel is that the weight of the vehicle spring cannot be reduced simply because the vehicle spring and especially the spring body have to withstand different loads due to their elastic action than cast or welded products

Method used

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  • Shaped rods and vehicle springs made from them
  • Shaped rods and vehicle springs made from them
  • Shaped rods and vehicle springs made from them

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Figure 1 to Figure 5 The hitherto known cross-sectional shape of a profiled bar 1 made of flat bar steel, ie a profile with naturally rolled rounded edges ( figure 1 ), a profile with a semicircular narrow side ( figure 2 ), contours with rounded edges ( image 3 ) and elliptical arch profile (British Standard) ( Figure 4 ). Figure 5 A thermally deformable profile bar 1 for a ribbed leaf spring is shown in cross section.

[0042] Figures 1 to 3 The heat-deformable profile bar 1 shown complies with DIN EN 10092-1. Figure 4 Shown is a thermally deformable profiled bar 1 made of flat bar steel having a cross-sectional shape according to British Standard BS 970-2:1988b. Figure 5 The heat-deformable profile bar 1 shown corresponds to DIN EN 10092-2. The profiled bar 1 has an upper side 2 , a lower side 3 and two narrow sides 4 , 5 . In addition, in Figures 1 to 4 The width b, the height h and the transverse axis z (the transverse axis also corresponds to th...

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PUM

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Abstract

The invention relates to a vehicle spring for a spring system comprising a spring body (20) which is thermally deformed, in particular rolled, from a profiled bar (1) made of flat bar steel, Especially made of spring steel. The profile bar (1) or spring body (20) has at least one material recess (6) which is arranged at least in regions over the length of the profile bar or spring body. The cross-sectional shape of the profiled bar (1) is constant over its entire length, while the cross-sectional shape of the spring body (20) can vary over its length.

Description

technical field [0001] The invention relates to a profiled bar made of flat bar steel, in particular spring steel, for the production of thermally deformed, in particular rolled vehicle springs, and a method for producing such a profiled bar. [0002] The invention also relates to a vehicle spring comprising an elongated spring body produced by thermal deformation, in particular rolled, from a profiled bar, and a method for producing such a vehicle spring. [0003] Furthermore, the invention relates to also a spring system for a vehicle. Background technique [0004] In the field of application of the invention, vehicle springs are understood to be air springs (rod springs), parabolic springs, leaf springs, in particular single- or multi-piece parabolic springs, which are made of flat bar steel. [0005] In the context of the present invention, vehicle springs are thermally deformed, in particular rolled, from flat bar steel, preferably spring steel, at temperatures of appr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F1/18
CPCF16F1/185F16F1/187F16F1/18Y10T428/12389Y10T29/49611B21D53/886B60G11/02B60G2202/11B60G2206/8109F16F1/26
Inventor G·屈内尔特J·扎姆博格
Owner HENDRICKSON COMML VEHICLE SYST EURO GMBH