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A suspension trailing arm and heavy vehicle suspension assembly

A technology of trailing arm and suspension, applied in the field of suspension trailing arm

Inactive Publication Date: 2011-06-08
MERITOR HEAVY VEHICLE SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of the hitherto tendency to make cast and forged trailing arms into the "traditional" beam shape, applicant has now recognized that the strength, durability and weight of the trailing arms are There is room for further improvement in mitigation

Method used

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  • A suspension trailing arm and heavy vehicle suspension assembly
  • A suspension trailing arm and heavy vehicle suspension assembly
  • A suspension trailing arm and heavy vehicle suspension assembly

Examples

Experimental program
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Embodiment Construction

[0024] figure 1 A heavy commercial vehicle 20 is shown comprising a tractor section 22 and a trailer section 24 articulated relative thereto. A plurality of wheels 26 are suspended from the chassis 25 of the trailer section such that the wheels are rotatable about axles 28 .

[0025] go to figure 2 , wherein a prior art suspension assembly 30 is shown, briefly, the suspension assembly 30 includes a spring steel suspension arm 32 , a chassis support bracket 34 and an air spring 36 . Chassis support brackets 34 and air springs 36 provide connection to and suspension relative to the trailer chassis 25 (shown in phantom for clarity) in a known manner. U-bolts 40 and top and bottom plates 41 a and 41 b provide a means of mounting axle 42 (shown in phantom for clarity) to trailing arm 32 . In particular, it should be noted that the bottom plate 41 b is directly welded to the axle 42 . Wheels (not shown) are fixed at each end of the axle 42 for rotation about the axis 28 . A sh...

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PUM

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Abstract

A suspension trailing arm is used for suspending a vehicle chassis from a beam type axle. The trailing arm comprises a chassis mounting feature, an axle mounting feature, and an arm portion intermediate the chassis mounting feature and an axle mounting feature, characterized in that the arm portion comprises a generally X-section profile having four limbs, two limbs in the four limbs are orientated to provide grooves upward during installation, wherein the shape limits an X-axis horizontally extending through the X-section profile center point, and the two limbs of the four limbs providing the grooves tilt up with respect to the X-axis, and each limb follows a substantial S-shaped path from a chassis lining to a shaft package part. The invention also provides a heavy vehicle suspension assembly including the suspension trailing.

Description

technical field [0001] The invention relates to a suspension trailing arm. More specifically, the present invention relates to suspension trailing arms having a substantially X-shaped cross-sectional portion, and to suspension assemblies including such trailing arms. Background technique [0002] Heavy commercial vehicles typically use a trailing arm suspension system, especially in relation to the trailer axle of an articulated vehicle, or possibly the rear axle of a rigid vehicle. [0003] Heavy commercial vehicles (including trucks, buses, and coaches) are distinguished from light commercial vehicles (such as vans) and light passenger vehicles by one or more of the following characteristics: [0004] 1. The load exceeds about 3.5 tons. [0005] 2. Use air brakes instead of hydraulic brakes (because air brakes are better able to withstand the higher heat generated by repeated braking of vehicles weighing more than about 3.5 tons). [0006] Such vehicles, including trail...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G7/00B60G9/00
CPCB60G2204/128B60G2206/601B60G2206/017B60G2202/24B60G2206/8101B60G2206/8201B60G9/003B60G2204/126B60G2206/81022B60G2202/152B60G2206/014B60G2300/026B60G7/001B60G2204/129B60G2204/148
Inventor 马丁·劳伦斯·皮克大卫·约翰·昌
Owner MERITOR HEAVY VEHICLE SYST
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