Method for making a vehicle suspension member

Details Method for making a vehicle suspension member Method for making a vehicle suspension member

1991-03-11

1992-09-08

Echols, P. W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

267 47, B23P 1300

Patent

active

051447347

ABSTRACT:
A vehicle suspension member such as a spring leaf or plate (50) is provided with at least one discontinuity therein that extends generally parallel to a longitudinal axis ("L/A") extending therealong between opposite ends thereof and is effective to divert crack propagation in a direction generally parallel thereto. The discontinuity(s) are provided by methods that include compressing an elongate member (10,12) having enclosed voids (12,16) extending along its central region in one embodiment or by compressing an elongate member (26) having a plurality of enclosed voids (28) extending along its length in another embodiment or by compressing an elongate member (41) having opposite sides (43,43') that, in cross-section, have a concave shape, in yet another embodiment.

REFERENCES:
patent: 1204037 (1916-11-01), Laher
patent: 1250332 (1917-12-01), McCloud
patent: 1336314 (1920-04-01), Nyquist
patent: 3204944 (1965-09-01), Brownyer

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