| 摘要 |
PURPOSE:To facilitate the attachment and detachment of a caster and simplify its structure by tightening a plate nut with a hole portion to a bolt integrated with the caster, inserting the protruded portion of a decorative leg in the hole portion of the plate nut, and tightening the plate nut to a mounting section with screws. CONSTITUTION:When a caster 4 is mounted, first of all, a spring washer 6 is inserted around the bolt 5 of the caster 4 and is tightened with a nut-shaped metal fitting. Then, a decorative leg 3 is inserted in the end of a leg 1 and the protruded portion 8 of the decorative leg 3 is inserted in the hole portion 9 of the metal fitting 2, then the metal fitting 2 is fixed to the leg 1 with screws 7. As a result, the decorative leg 3 can be removed from the leg 1 only by removing the screws 7 and the bolt 5 can be attached and detached by turning the metal fitting 2. In addition, the structure of the decorative leg 3 can also be formed into a simple shape that uses the rubber and resin in which the nut need not be imbedded.
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