Group J Crane Project Proposal Homepage: Winches Research (i)

Welcome to The ME2045 Group J Crane Project Blog page!

This entire site is to give a guide to Group J`s efforts to design a small portable crane for use in disaster relief before our final submission of work and our presentation.

Following our first meeting (See the Minute Meetings Topic for reference) the following positions have been allocated;

D.Scriven Project Manager
R.Sidhu Chief Designer
H.Singh Sall Finnance Officer
J.Sidhu Materials Specialist
R.Shukla Stress Analysis

For Our Progress up to date please see the Project Plan below and then head to the relevant topic and we hope you find our work interesting!

Wednesday 7 April 2010

Winches Research (i)

Information on Winches

For our design, we are looking for a manual winching system – therefore the following research is primarily based on Grip Hoists.

Tirfors /Grip hoists

· Uses self gripping jaws to move rope through, rather than a spool.

· Powered by moving a handle back and forth.

· Tirfor = European Name; Grip hoist = American Name

· Allows one person to move several tonnes if needs be.

· Can move objects quickly.

· Easy to set up.

· No ratchet or coil – permitting small adjustments if needed.

· Patented double grip mechanism is so secure that it is rated by the UL (Underwriters Laboratories Inc) to be safe enough to hoist humans. E.g. Window cleaner scaffolding.

(Below) ‘Heavy Duty’ Trifurs are already used in rescue situations.