Back to results
US 4,306,494 AGranted
Twine device for rotary balers
AssigneeFarmhand, Inc.
InventorsKazuteru Nishibe, Masahiko Kamekura, Naoji Furukawa
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeFarmhand, Inc.
InventorsKazuteru Nishibe, Masahiko Kamekura, Naoji Furukawa
Estimating the term…
A device for wrapping twine around a bale of fodder which is rolled in a baling chamber of an apparatus that moves along a windrow. The device has a twine arm which swings between a transversely extending rest position and a dispensing position extending rearwardly into the baling chamber, a twine clamp near the rest position of the free end of the twine arm, a twine cutting blade near the twine clamp, and a mechanism that operates automatically in response to swinging movement of the twine arm to release the twine clamp as the arm approaches dispensing position and to re-engage the clamp and sever the twine as the arm approaches rest position. The mechanism includes a tension spring that passes overcenter to rapidly release and engage the clamp.
In an apparatus having a frame and means defining a baling chamber in which fodder is rolled into a bale as the apparatus moves forwardly along a windrow, a device for wrapping twine from a twine supply on the apparatus around a bale as bale formation is being completed, said device comprising, in combination:
The device of any of the preceding claims in which the operating means includes a pivoted arm which is rotated by the operating means and which is connected to the movable member, a tension spring is fixed to an anchor of the frame and secured to said arm so as to be stretched and move overcenter as said pivoted arm is rotated, and in which the spring collapses after said overcenter movement to move the movable member rapidly into and out of twine engaging position independently of any further movement of the twine arm.
Dependencies are inferred from the claim text.