Backhoe boom transport locking means

A locking means for mechanically locking a backhoe boom in a transport position on an earthmoving machine,

• the boom being supported for swinging movement about a horizontal pivot means carried on a swing post that is coupled by a vertical pivot means to a frame means of the earthmoving machine,
• the locking means comprising a lever means fulcrummed intermediate its ends on the swing post,
• the lever means at one of its ends and the boom having a first coacting lever means engageable in raised position of the boom for holding the latter in a raised transport position,
• the lever means at its other end overlying the frame means,
• the frame means and overlying lever means end having a second coacting latch means comprising a depending key on the overlying lever means and engageable with a slotted cam block mounted on the swing post support frame,
• the depending key being positionable within a slot in the cam block when the swing post is centrally positioned on its support frame,
• the depending key and slotted cam block coacting to hold the swing post and thereby the boom against swinging movement about the swing post vertical axis,
• and manipulable means accessible at an operator's station on the earthmoving machine for engaging or releasing the locking means from the boom and swing post.