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Improved propshaft having multiple crash features

A drive shaft, stub shaft technology, applied in the direction of shafts, couplings, shafts and bearings, etc., can solve problems such as increased cost of drive shafts and constant velocity joints, unrealistic prices, low collision or crushing force, etc.

Inactive Publication Date: 2006-03-15
GKN DRIVELINE NORTH AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Some prior art propshafts will deform under certain loading conditions, but many of these crash structures designed into the propshaft are often too complex and increase the cost of the propshaft and constant velocity joint to impractical prices
Furthermore, due to the daily use of today's vehicles requiring strong and robust propshafts, prior art propshafts run into snags when they are designed for lower crash or crush forces

Method used

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  • Improved propshaft having multiple crash features
  • Improved propshaft having multiple crash features
  • Improved propshaft having multiple crash features

Examples

Experimental program
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Embodiment Construction

[0041] Referring to the drawings, there is shown a multi-piece drive shaft 10 in accordance with the present invention. The multi-piece crash propshaft 10 is used in any known drivetrain, including rear-wheel drive systems, front-wheel drive systems, all-wheel drive systems, and four-wheel drive systems. Typically, the propshaft 10 is used in an all wheel drive or four wheel drive system or a rear wheel drive system where the multi-piece propshaft 10 will connect the transmission and the rear differential. The multi-piece propshaft 10 will allow rotational torque speed to be moved from the transmission to the differential and then through the side shafts to the motor wheels. The multi-piece propshaft 10 will generally be able to move along its axis relative to its pieces or segments to accommodate and compensate for differences in motion or length between the transmission and the rear differential during normal operation of the vehicle. It should be noted that the multi-piece...

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PUM

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Abstract

A multi-piece propeller shaft (10) for use in an automotive vehicle. The multi-piece propeller shaft including a first or front section (42) and a second or rear section (14). The first section including a first crash feature in the form of a sliding spline (44, 46, 48). The second section including a second crash feature in the form of a collapsible constant velocity joint (20). The multi-piece propeller shaft capable of collapsing at predetermined loads and at predetermined times to have a tunable crash absorbing propeller shaft for use in automotive vehicles.

Description

[0001] This application is a continuation of Provisional Patent Application 60 / 445,733, filed February 6,2003. technical field [0002] This invention relates generally to vehicle propshafts and constant velocity joints, and more particularly to an improved propshaft that is crashproof and has two or more separate crash structures that will be used during a motor vehicle crash accident Telescoping the propeller shaft in a controlled, adjustable, predetermined manner. Background technique [0003] Drive shafts (propshafts) for use in vehicle propulsion systems are well known in the art. The propshaft may be a multi-piece propshaft or a solid propshaft, depending on the type of driveline on the vehicle therein. In all-wheel, four-wheel, or rear-wheel drive vehicles, the propshaft is typically used to transmit torque and rotational force to the rear axle and rear wheels. They can also be used in front-wheel drive vehicles and four-wheel drive vehicles to transmit the necessar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D3/06B60R19/00F16C3/02
CPCF16C3/02B60R19/00
Inventor J·莱昂G·达伦
Owner GKN DRIVELINE NORTH AMERICA
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