Tufting machine hook drive
First Claim
1. In a tufting machine having a bed, a plurality of laterally spaced hooks for seizing loops of yarn presented thereto, a laterally extending oscillating shaft mounted in the bed, a plurality of rocker arms fastened to said shaft for oscillating therewith, a link having a first end pivotally journalled on each rocker arm and a second end, and means including a hook bar for securing said hooks to said second end of said links, the improvement comprising:
- resilient means having a first end fixed in said bed and a second end, and means for securing said second end of said resilient means to said hook bar, said resilient means flexing as said hooks rock in response to oscillation of said rocker arms.
1 Assignment
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Accused Products
Abstract
A tufting machine has a hook bar for mounting a plurality of hooks and is secured to a plurality of drive links driven by oscillating rocker arms from a rock shaft, and includes a plurality of resilient leaf springs secured at spaced apart locations to the hook bar and to a fixed member in the bed of the tufting machine. The leaf springs provide a low oscillating mass support for the hook bar in the plane of oscillation. Tension tie-rods extend laterally between adjacent drive links to counteract the lateral loads of the knives against the hooks.
21 Citations
14 Claims
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1. In a tufting machine having a bed, a plurality of laterally spaced hooks for seizing loops of yarn presented thereto, a laterally extending oscillating shaft mounted in the bed, a plurality of rocker arms fastened to said shaft for oscillating therewith, a link having a first end pivotally journalled on each rocker arm and a second end, and means including a hook bar for securing said hooks to said second end of said links, the improvement comprising:
- resilient means having a first end fixed in said bed and a second end, and means for securing said second end of said resilient means to said hook bar, said resilient means flexing as said hooks rock in response to oscillation of said rocker arms.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification