Luffing jib crane

Structure of mechanism
Function	The luffing jib crane is based on a double-rocker mechanism, which couple point nearly realises a linear guided motion. The linkage is based on 4 links connected through 4 joints.
Dimension of mechanism	planar
Number of links	4
Drive movement	Rotation
Output movement	Frame motion
Degree of freedom	1
Fundamental mechanism	Link containing mechanism
Number of inputs	1
Number of followers	1
Revolution ability	no
Revolution ability of input link	no
Relative position between drive and output	orthogonal intersecting

Guidance function
Direction of the path	reversed direction
Orientation of output link	general
Trace of a dedicated point on follower	Open trace Straight line motion
Dimension of mechanism	planar
Input reference	yes
Progress of orientation respecting output link	oscillating: unknown range

Collections

Link containing mechanism

Permanent links

DMG-Lib		https://www.dmg-lib.org/dmglib/handler?mcdsc=2673025
Europeana		http://www.europeana.eu/portal/record/2020801/dmglib_handler_mcdsc_2673025.html