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US 12,479,239 B2Granted
Caster
AssigneeNakamura Co., Ltd.
InventorAkira Nakamura
Life of this patent
Estimating the term…
Abstract
A caster whose overall height can be reduced. A caster includes a wheel, a wheel support portion having a plate shape provided with an opening where the wheel is disposed and rotatably supporting the wheel, and a swivel mechanism portion that holds an outer peripheral portion of the opening in the wheel support portion in a horizontally swivelable manner.
Claims6
A caster comprising:
- a wheel;
- a wheel support portion that is provided with a first opening where the wheel is disposed and rotatably supports the wheel;
- and
- a swivel mechanism portion that holds an outer peripheral portion of the first opening in the wheel support portion in a horizontally swivelable manner;
- wherein the swivel mechanism portion includes
- a plate whose lower surface has an annular recess,
- a plurality of rolling elements disposed in the recess, and
- a bracket attached to the plate in a horizontally swivelable manner together with the wheel support portion, and
- the outer peripheral portion is held by the bracket and is in contact with the plurality of rolling elements from below.
6 more elements
Dependencies are inferred from the claim text.