Roller assembly for storage device
AssigneeCheonghosystem Co., Ltd
InventorYongwoon PARK
Life of this patent
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Abstract
Provided is a roller assembly for a storage device. The roller assembly includes a shaft member, a rolling member, a cover member, and ball members. In particular, the ball members are configured to perform a rolling operation while being maintained in the state of being seated at specific locations by a seating groove formed in the shaft member and guide grooves formed in the rolling member and the cover member, and the rolling member and the cover member are configured to be coupled to each other by a fitting method and are then completely coupled to each other through laser bonding. The roller assembly is additionally characterized in that the damage of the ball members is prevented from occurring during the above laser bonding.
Claims7
A roller assembly for a storage device, the roller assembly comprising:
- a shaft member including a head portion configured such that the head portion forms a head part and a seating groove is depressed into a circumferential surface thereof and a coupling portion configured to extend backward from the head portion and to be engaged with a counterpart object;
- a rolling member configured to be formed in a cylindrical shape forming a rolling part, and configured such that a front side portion of an inner circumferential surface thereof is formed to surround a part of a front side of the head portion constituting a part of the shaft member and a coupling groove is depressed into a rear side portion of the inner circumferential surface in a stepped form;
- a cover member configured to be seated onto the coupling groove of the rolling member, and configured such that an inner circumferential surface thereof is formed to surround a part of a rear side of the head portion constituting a part of the shaft member;
- and
- ball members configured such that circumferential surfaces thereof are partially seated on opposite surfaces of the shaft member and the rolling and cover members and the ball members perform a rolling operation;
- wherein guide grooves having a same curvature as the ball members are formed at a rear side end of the inner circumferential surface of the rolling member and a front side end of the inner circumferential surface of the cover member, respectively.
Dependencies are inferred from the claim text.