PORTABLE ANCHOR Russian patent published in 2009 - IPC B63B21/36 

FIELD: transport.

SUBSTANCE: proposed portable anchor comprises anchor shank and spider with pivoted folding blades. Free ends of said blades are rounded and directed towards the anchor spider, rounding radius being equal to blade thickness. Blades outer sides have guides accommodating blade opening angle limiter representing a rectangular plate that supports stop to limit plate travel in lengthwise direction relative to central axis. Aforesaid stop represents cylindrical rod with free end is thread-jointed with limiter body and extends from the limiter into blade blind hole.

EFFECT: ease of manufacture and operation.

5 dwg