Indexing Gripper Patents (Class 100/22)
  • Patent number: 9807941
    Abstract: A knotter table of a baler includes a plurality of tucker finger assemblies which each aid in tying together ends of a set of twine strands so as to tie a loop of twine about a bale formed in a baling chamber. Each tucker finger assembly includes a tucker finger defined by a plate pivotally mounted alongside a baling chamber needle slot for being pivoted horizontally between a standby position, wherein the tucker finger is entirely to one side of the needle slot, and a working position, wherein the tucker finger is pivoted across the needle slot. A stop arrangement is provided for being engaged by the tucker finger or by an operating linkage coupled to the tucker finger in the event that the tucker finger pivots a preselected distance beyond a desired working range so as to prevent the operating linkage from going over-center and causing linkage damage.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: November 7, 2017
    Assignee: Deere & Company
    Inventor: Carl F. Demulder
  • Patent number: 7752959
    Abstract: A knotter arrangement of a large square baler includes a plurality of knotter assemblies with each assembly including a knotter gear having a hub received on, and coupled for rotation with, a knotter drive shaft. Each assembly further includes a knotter frame including an upper end defined by a sleeve received on the gear hub. Mounted for rotation within four bores provided in the knotter frame are a worm gear spindle, a twine disk spindle, a billhook spindle and a knife arm shaft.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: July 13, 2010
    Assignee: Deere & Company
    Inventor: Darin L. Roth
  • Patent number: 6164197
    Abstract: A baler has a frame, a shaft extending on the frame along and rotatable about an axis, and a knotter having a sleeve-like hub rotationally fixed to the shaft and of a predetermined outer diameter. A support journaled on the hub is fixed to the frame and carries movable knotting parts. A rim ring surrounding the axis is formed of a main C-shaped part having arms spaced apart by a distance greater than the hub outer diameter and a bridge part between the arms and closing the main part. The rim ring also has formations engageable with the parts for actuating same. Fasteners releasably fix the rim ring on the hub.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: December 26, 2000
    Assignee: Case Harvesting Systems GmbH
    Inventor: Hubert Prellwitz
  • Patent number: 4413553
    Abstract: An apparatus for coordinating the operation of the bale tying mechanism with the feeding apparatus of a baler. The baler (10) includes a bale chamber (16), feeding means (26) including a pair of feed rollers (36) which are moved back and forth across the inlet end by reciprocating means (46, 48) including a hydraulic cylinder. The bale tying means includes a knotter (64), a pickup needle (110), and a knotter shaft (76) capable of driving the knotter and the needle. The actuating means which is capable of actuating the bale tying means includes a bale length metering mechanism (202 to 218), a constantly driven sprocket (230), and a single revolution clutch (220), the actuating means being capable of initiating the operation of the clutch (220) to cause rotation of the knotter shaft (76) when the bale length has been achieved.
    Type: Grant
    Filed: August 24, 1981
    Date of Patent: November 8, 1983
    Assignee: Massey-Ferguson Industries Limited
    Inventor: Alexander Crawford