The present invention provides a keel block apparatus. According to the present invention, the keel block apparatus may include: a plurality of keel blocks installed on a dock floor; a connection member to connect the keel blocks; and a winch installed at the tip of the connection member to draw the connection member in order to fall down the keel blocks connected to the connection member.
KEEL BLOCK
2015-09-23
Patent
Elektronische Ressource
Koreanisch