Land vehicles – Wheeled – Running gear
Reexamination Certificate
1998-01-20
2001-01-30
Culbreth, Eric (Department: 3611)
Land vehicles
Wheeled
Running gear
C280S124146, C280S124147, C280S124154, C280S124162, C280S124165, C280S124179
Reexamination Certificate
active
06179309
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a method of mounting a coil spring of a suspension system between a suspension component and a body component of a vehicle and structure for mounting the coil spring to the body component. More particularly, the present invention relates to such a method and the structure which are adapted to reduce a partially concentrated load which affects the spring seat by repulsion of a coil spring.
2. Description of the Related Art
Coil springs such as suspension springs, which have essentially vertically oriented axis, are known to be mounted between a suspension component and a body component in a manner wherein a lower end of the coil spring is supported on the suspension component such as a lower link, and wherein an upper end is attached to the body component via a spring seat.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a method of mounting a coil spring of a suspension system between a suspension component and a body component of a vehicle comprising a simple arrangement capable of reducing a partially concentrated load which affects a spring seat by repulsion of the coil spring.
It is another object of the present invention to provide a structure for mounting a coil spring which comprises a simple arrangement which will reduce a partially concentrated load and effect a spring seat by repulsion of a coil spring.
In brief, the above objects are achieved by an arrangement wherein, in order to reduce a partially concentrated load affecting a spring seat which is generated by repulsion of a coil spring, the arrangement comprises an edge of the upper end of the coil spring being disposed against a portion of a spring seat having a relatively lower rigidity or solidity as it will be referred to hereafter. Thus, the partially concentrated load is absorbed by the spring seat, and interference between turns of the coils is prevented.
More specifically, a first aspect of the invention resides in a method of mounting a coil spring of a suspension on a vehicle body comprising: disposing a lower end of the coil spring against a suspension component; disposing an upper end of the coil spring against a spring bracket via a spring seat; connecting the spring bracket to a vehicle body; and disposing an edge of the upper end of the coil spring against a portion of the spring seat having a relatively lower solidity.
A second aspect of the invention resides in a structure for mounting a coil spring of a suspension to a vehicle body comprising: a coil spring disposed against a suspension component at it s lower end and disposed against a spring bracket via a spring seat at its upper end; the spring bracket being connected to a vehicle body; the spring seat including a relatively lower solidity portion which accepts an edge of the upper end of the coil spring.
REFERENCES:
patent: 4087117 (1978-05-01), Brace et al.
patent: 4400008 (1983-08-01), Rumpel
patent: 4480852 (1984-11-01), Rumpel
patent: 4981287 (1991-01-01), Cothenet
patent: 4989894 (1991-02-01), Winsor et al.
patent: 5275389 (1994-01-01), Pinch et al.
patent: 5658006 (1997-08-01), Freeman et al.
patent: 1044393 (1953-11-01), None
Hozumi Yutaka
Satou Masaharu
Culbreth Eric
McDermott & Will & Emery
Nissan Motor Co,. Ltd.
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