Spring member for industrial caster wheel
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United States of America Patent
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Aug 6, 2013
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N/A
app pub date -
Apr 13, 2011
filing date -
Apr 13, 2011
priority date (Note) -
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Abstract
A spring-force-adjustable and height-adjustable industrial caster wheel includes spring assembly, a mounting plate, a swivel assembly that swivels relative to the mounting plate, and a spring housing having a spring space in which the spring assembly is located. The spring force of the spring assembly is adjustable by pre-loading the spring assembly along the top-to-bottom direction along which the caster load is applied. The spring assembly includes a spring member having one or more relief areas on one or more of its side and/or end surfaces and/or internally within the spring member. These one or more relief areas allow the spring member to easily deform under the pre-load force or under increasing caster load forces without compromising the ability of the spring space to constrain lateral movements of the spring assembly or the ability of the spring member to deform elastically and/or avoid undergoing plastic deformations.
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