Invention Grant
- Patent Title: Carrier with foldable wheels
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Application No.: US15309444Application Date: 2015-05-11
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Publication No.: US09764751B2Publication Date: 2017-09-19
- Inventor: Won-sang Cho
- Applicant: Won-sang Cho
- Agency: Revolution IP, PLLC
- Priority: KR10-2014-0056060 20140511; KR10-2014-0072173 20140613; KR10-2014-0082424 20140702; KR10-2014-0154838 20141108
- International Application: PCT/KR2015/004677 WO 20150511
- International Announcement: WO2015/174699 WO 20151119
- Main IPC: B62B3/02
- IPC: B62B3/02 ; A45C5/04 ; A45C5/14 ; A45C5/03 ; A45C13/38 ; A63B55/30
Abstract:
Disclosed is a device for turning rotatable rods for folding or unfolding wheels of a carrier, the device comprising: a pair of rotatable rods, each of which comprises one or more helical lines; a cross bar comprising helical line coupling portions coupled to one or more helical lines, and one or more elastic members, which provide restoring forces to the cross bar.
Public/Granted literature
- US20170144684A1 CARRIER WITH FOLDABLE WHEELS Public/Granted day:2017-05-25
Information query
