Title:
ROLLER ASSEMBLY FOR STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/035569
Kind Code:
A1
Abstract:
The present invention proposes a roller assembly for a storage device, the roller assembly comprising a shaft member, a rolling member, a cover member, and a ball member. Particularly, the present invention proposes additional features in which: the ball member is configured to roll while remaining seated in a specific position due to a seating groove formed in the shaft member and a guide groove formed in each of the rolling member and the cover member; and the rolling member and the cover member are configured to be fully combined by laser welding after being coupled to each other via insertion fitting. Moreover, the occurrence of damage to the ball member can be prevented during the laser welding.
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Inventors:
PARK YONGWOON (KR)
Application Number:
PCT/KR2018/008179
Publication Date:
February 21, 2019
Filing Date:
July 19, 2018
Export Citation:
Assignee:
CHEONGHOSYSTEM CO LTD (KR)
International Classes:
F25D25/02; F16C13/00; F16C19/06
Foreign References:
| JP2003120691A | 2003-04-23 | |||
| KR0122346Y1 | 1998-08-17 | |||
| KR200192095Y1 | 2000-08-16 | |||
| KR20160026646A | 2016-03-09 | |||
| KR20090004790A | 2009-01-12 |
Attorney, Agent or Firm:
NAMCHON PATENT & LAW FIRM (KR)
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