Cutter mechanism for tufting machine or the like
AssigneeAbram N. Spanl
InventorsAbram N. Spanel, P. Frank Eiland, David R. Jacobs, David N. Buell
Life of this patent
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Abstract
A cutter mechanism for use in a tufting machine or the like featuring a stationary blade having openings through which yarn strands project, the stationary blade being positioned in the path of travel of yarn strands from yarn creels to bit-applying elements with the cutter mechanism further featuring a series of reciprocable blades which are biased against the stationary blade whereupon reciprocation the reciprocable blades will pass over the openings and because of their biasing effect, penetrate the plane of the stationary blade passing into the openings thereby severing the yarn strands.
Claims15
In a tufting machine or the like, a cutting mechanism comprising:
- a stationary blade having at least one opening therein through which at least one yarn strand projects;
- and
- at least one reciprocating blade biased against said stationary blade and positioned so as to travel across said opening with said biasing causing said reciprocating blade to bow through the surface of the plane of said stationary blade facing said reciprocating blade into said opening thereby severing the yarn strand as said reciprocating blade passes across said opening.
In an apparatus or the like for applying yarn bits to a backing layer:
- reciprocable bit-applying means movable to and from loading positions on a selected side of the backing layer;
- metering means for advancing lengths of yarn;
- pneumatic means for transporting said lengths of yarn to said loading positions;
- severing means, in close proximity to said bit-applying means for severing bit lengths of yarn from said advanced lengths of yarn, said severing means comprising a stationary blade having openings therein for receiving said lengths of yarn and reciprocating blades biased against said stationary blade and positioned to travel across said openings so as to penetrate the plane of said stationary blade by bowing into said openings thereby severing said lengths of yarn into bit lengths for application to a backing layer.
Apparatus including bit-applying means for applying yarn to a backing layer comprising:
- a plurality of inlet passageways extending to a common outlet;
- a plurality of metering devices, each metering yarn from a different yarn source and communicating with one of said inlet passageways;
- means for pneumatically transporting a selected yarn through said common outlet and to a bit-applying station;
- strand-severing means to sever said selected yarn preparatory to yarn application, said strand-severing means including a stationary blade having openings for receiving yarn and a series of reciprocating blades biased against said stationary blade and positioned so as to travel across said openings, said biasing causing said reciprocating blades to bow and penetrate said openings thereby severing yarn extending therethrough;
- and
- pull back means to remove yarns from said common outlet once a yarn bit has been severed.
Dependencies are inferred from the claim text.