Sock with impact absorbing sole and method

Details Sock with impact absorbing sole and method Sock with impact absorbing sole and method

2000-05-04

2001-05-15

Worrell, Danny (Department: 3741)

Textiles: knitting

Fabrics or articles

Articles

C066S185000, C066S17800A

Reexamination Certificate

active

06230525

ABSTRACT:

FIELD OF THE INVENTION
The invention herein pertains to knit socks and particularly pertains to socks having a thick or impact absorbing sole as made on a circular knitting machine.
DESCRIPTION OF THE PRIOR ART AND OBJECTIVES OF THE INVENTION
Socks are conventionally made on circular knitting machines and in recent years athletic and other socks have been developed with reinforced soles. Certain of the socks so produced utilize the high splice finger on the knitting machine to knit in a third yarn in the sole area. The high slice finger allows a yarn to be inserted only while the sole is being knit. The yarn so utilized is severed at the termination of the sole knitting cycle and is again fed by the high splice finger during the next needle cylinder revolution as the sole is again being knitted. Socks of this type generally provide a terry or high loop stitch in the sole for added comfort. Elastomeric yarns are traditionally not employed in the sole. While such prior art socks do provide a measure of impact absorption, such do not provide the impact absorption desired and do not have the abrasion resistance to constantly withstand the intensive rigors occurring during athletic contests and other high impact activities.
Thus, with the problems and disadvantages of prior socks, the present invention was conceived and one of its objectives is to provide a sock which can be knit on a circular knitting machine with improved comfort, wear and abrasion resistance.
It is still another objective of the present invention to provide a sock which includes an elastomeric yarn knit into the sole.
It is still another objective of the present invention to provide a sock utilizing a covered elastomeric yarn in the sole having restricted elongation properties.
It is still another objective of the present invention to provide a sock which includes a terry stitch in the sole.
It is a further objective of the present invention to provide a circular knit sock which is formed from a trio of yarns in which an elastomeric yarn is knit into the sole using a high splice finger of the knitting machine.
Various other objectives and advantages of the present invention will become apparent to those skilled in the art as a more detailed description is set forth below.
SUMMARY OF THE INVENTION
The aforesaid and other objectives are realized by forming a sock having an impact absorbing sole on a circular knitting machine utilizing an elastomeric yarn. The elastomeric yarn is knit into the sole with a high splice feed finger of the knitting machine. The elastomeric yarn comprises a covered elastomeric yarn in which the elongation has been restricted to about 100%.
The sock formed by the method described above includes an improved sole having a terry loop construction and exhibits superior impact absorption and abrasion resistance. The sock can be made on a conventional eighty-four needle circular knitting machine having a cylinder diameter of five inches (12.7 cm) such as originally manufactured by H. E. Crawford Company of Kernersville, N.C.
The covered elastomeric yarn is formed with a restricted elongation of about 100%, much less than the conventional elongation of about 260% of standard covered elastomeric yarns as are used in knitting socks.


REFERENCES:
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patent: 5603232 (1997-02-01), Throneburg

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