Method and means of tufting
OwnerAbram N. Spanelinventor
Life of this patent
Estimating the term…
Abstract
Tufting apparatus utilizing pneumatic means for transporting yarn strands including a threader tube assembly capable of delivering a plurality of yarn strands through multiple passageways to, and loading same, in tufting elements which apply bit-lengths of the strands into a backing layer.
Claims23
Tufting apparatus comprising:
- bit-applying elements;
- loading means for loading said bit-applying elements, said loading means including a plurality of yarn passageways through each of which may be transported a yarn strand, said loading means further including means to align each of said yarn passageways relative to said bit-applying elements;
- pneumatic transporting means to transport yarn strands through said loading means to said bit-applying elements;
- strand severing means to sever yarn bits from said yarn strands;
- and
- means operable with said bit-applying elements to apply said yarn bits to a backing.
Tufting apparatus comprising:
- bit-applying elements containing a plurality of eyes;
- loading means for loading said bit-applying elements, said loading means including a plurality of yarn passageways through each of which may be transported a yarn strand to one of said plurality of eyes;
- means to transport yarn strands through said loading means to said bit-applying elements;
- strand severing means to sever yarn bits from said yarn strands;
- and
- means operable with said bit-applying elements to apply said yarn bits to a backing.
Tufting apparatus comprising:
- tufting needles including a plurality of yarn receiving eyes;
- threader tube assembly means including yarn passageways through each of which may be transported a yarn strand, said threader tube assembly means being operable to align each of said yarn strands with one of said needle eyes, said threader tube assembly means further comprising pneumatic transport means by which said yarn strands are transported through said threader tube assembly;
- strand severing means to sever yarn bits from said yarn strands;
- and
- means operable with said tufting needles to attach yarn bits to a backing.
Tufting apparatus comprising:
- bit-applying elements, including yarn receiving means;
- loading means for loading said bit-applying elements, said loading means including multiple yarn passageways, said loading means being operable to align yarn strands extending therethrough with said yarn receiving means of said bit-applying elements, each of said passageways being alignable to communicate directly with said yarn receiving means;
- pneumatic transport means to transport yarn strands through said loading means to said bit-applying elements;
- strand-severing means to sever yarn bits from said yarn strands;
- and
- means operable to move said bit-applying elements whereby yarn bits are placed in tufting relationship with a backing.
A tufting machine for forming tufts with respect to a backing comprising:
- tufting-needle means reciprocable between a threading position and a tufting position;
- threader tube assembly means for each tufting needle means, each threader tube assembly means including a plurality of yarn passageways through each of which may be transported a yarn strand;
- mechanism for reciprocating said threader tube assembly means relative to said needle means;
- pneumatic means associated with said threader tube assembly means for transporting yarn strands via said threader tube assembly means into said tufting-needle means when in said threading position;
- control means for said threader tube assembly means to select a desired passageway through which to transport a yarn strand into said tufting needle means;
- strand severing means;
- means operating said strand severing means to sever said yarn strands;
- and
- means for reciprocating said tufting-needle means for applying said severed yarn strands to the backing to form tufts.
In a tufting machine having needle means, pneumatic means to transport strands of yarn, a threader tube assembly means, including a plurality of yarn passageways for threading said needle means, and severing means for severing yarn into severed yarn lengths, the method of applying tufts to a backing comprising the steps of:
- positioning said needle means in a loading position;
- selecting a given passageway of said plurality of yarn passageways and aligning said passageway with yarn receiving means of said needle means;
- pneumatically feeding yarn through said passageway;
- shifting said threader tube to provide access to the yarn for severing;
- severing said tufting yarn;
- and
- depositing said severed length of yarn in said backing to form a tuft.
In a tufting machine having needle means including yarn receiving means, pneumatic means to transport strands of yarn, a threader tube assembly having a plurality of passageways for delivering strands of yarn to said needle means and severing means for severing yarn into severed yarn lengths, the method of applying the tufts to a backing comprising the steps of:
- positioning said needle means in a loading position;
- aligning one or more passageways of said plurality of passageways with the means for receiving yarn;
- pneumatically transporting a selected strand of yarn through said threader tube assembly and into said needle means;
- severing said selected strand of yarn to leave a severed length of yarn in said needle means;
- and
- depositing said severed length of yarn into said backing to form a tuft.
Dependencies are inferred from the claim text.