Pile sock

Details Pile sock Pile sock

2001-04-09

2001-12-04

Worrell, Danny (Department: 3765)

Textiles: knitting

Fabrics or articles

Articles

C066S17800A, C002S239000

Reexamination Certificate

active

06324874

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates to a pile sock knitted almost thoroughly in pile stitches.
DESCRIPTION OF THE PRIOR ART
As for a conventional pile sock categorized into this kind is well known, for example, a pile sock disclosed in Japan Utility Model Laid-open Publication No. Sho 58-68904. This pile sock is suitable to be used in playing tennis or the like, because it has such a pile texture that has been made thinner in a region corresponding to an arch of a foot than in the other regions. Consequently, a bottom portion of the sock body is supposed to fit to sole of a foot, thus to prevent the sock from slipping out of place during physical exercise.
Such conventional sock, however, has had all region corresponding to the sole uniformly knitted in the pile stitches. As a result, such sock has been poor in air permeability as a whole and tended to compress whole sole of a foot by the pile stitches. Especially when used in physical exercise, such sock has caused a user to feel compressed strongly over the sole of the foot and to feel tired.
In the light of above problems, through an energetic research, the inventor of the present invention has obtained a knowledge below. That is, in a pile sock, the sole portion thereof should be composed of a ground contact region and a ground non-contact region, each of which is required to have a different function from other. The ground contact region should focus on good cushioning properties and strength, while the ground non-contact region should require the air permeability and the reduced sense of compression. The present invention has been accomplished based on this knowledge.
Accordingly, an object of the present invention is to provide a pile sock which can lighten a sense of tiredness and improve the air permeability.
Another object of the present invention is to provide a pile sock which has a function for preventing slippage as well as excellent cushioning properties.
SUMMARY OF THE INVENTION
An invention defined by claim
1
is a pile sock having a sole portion comprising: a toe-side section knitted in pile stitches; a heel-side section knitted in pile stitches; and an intermediate section arranged between said toe-side section and said heel-side section, said intermediate section comprising an arch region and a ground contact region, said pile sock characterized in that said intermediate section is knitted so that pile stitch segments and plain stitch segments are distributed as mixed over said section, wherein said arch region has a larger area of the plain stitch segments than an area of the pile stitch segments, while said ground contact region has a larger area of the pile stitch segments than an area of the plain stitch segments.
An invention defined by claim
2
is a pile sock, in which said intermediate section is knitted so that the pile stitch segments and the plain stitch segments are arranged in a lattice pattern.
According to the inventions disclosed in claims
1
and
2
, since the sole portion of the pile sock has been knitted in pile stitches as a whole, it is excellent in the cushioning properties and is able to reduce a load to a foot. It also has good sweat-absorption characteristics. In addition, the toe-side section of the pile sock works effectively to prevent slippage. Still further, since the arch region of the sole portion has the smaller area of the pile stitch segments than the area of the plain stitch segments in comparison with the ground contact region of the sole portion, said pile sock is superior to a conventional sock in providing a sense of stimulation in sole of a foot and also a sense of fitness upon wearing the sock. At the same time, the pile sock according to the present invention generally produces a superior effect in the air permeability to the conventional one. Owing to these, said sock can reduce the exhaustion during wearing thus to be well suited for physical exercise, for example, walking. Further, since the plain stitch segments and the pile stitch segments are arranged in a lattice pattern, said sock allows the sense of stimulation and the air permeability to be provided uniformly.


REFERENCES:
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patent: 4253317 (1981-03-01), Howard et al.
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patent: 4898007 (1990-02-01), Dahlgren
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patent: 5335517 (1994-08-01), Thorneburg et al.
patent: 5603232 (1997-02-01), Thorneburg
patent: 5791163 (1998-08-01), Thorneburg
patent: 6021527 (2000-02-01), Lessard

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