Boots – shoes – and leggings – Soles – Cushion
Reexamination Certificate
1999-09-30
2001-05-22
Sewell, Paul T. (Department: 3728)
Boots, shoes, and leggings
Soles
Cushion
C036S105000, C036S080000, C036S008300, C036S042000
Reexamination Certificate
active
06233846
ABSTRACT:
DESCRIPTION
The invention relates to a shoe, in particular a sports or dancing shoe, the sole of which has a ball section and a heel, the heel having an open middle section under the heel of the foot which is bridged by a bridging element.
Such a shoe is known, the bridging element being composed of a pliable material, e.g. a plastic woven fabric. In particular for sports and dancing, it would be desirable to have a shoe with a greater damping capacity and better lateral stability.
The object of the invention is therefore to create a shoe with a higher damping capacity and a greater lateral stability.
This object is achieved according to the invention in that the bridging element is rigid.
Through the rigidity of the bridging element, the body weight is concentrated on the inner edge section of the heel and forces are scarcely introduced into the heel in a horizontal direction by the bridging element.
The width or transverse diameter of the open middle section is approximately 2 to 3 cm. Preferably, the open middle section of the heel reaches as far as the front edge of the heel so that the latter as a whole has a U- or C-shape open to the front with an outer edge, an inner edge and a front edge.
Preferably, the bridging element does not cover the whole heel, but an edge section of the heel remains free on the sides and at the rear end, i.e. along the outer edge. The overlap section between the inner edge and the rigid bridging element can be approximately 1 cm.
In the dancing shoe version, the heel of the shoe according to the invention preferably has a C or U shape open to the front and the bridging element reaches as far as the front edge of the heel and thus covers the entire open inner surface of the U- or C-shape including an overlap section approximately 1 cm in width. The ball section of the sole is not directly connected to the heel, but the two parts of the sole are each connected to the upper part of the shoe. The ball section of the sole has the customary somewhat oval shape with transverse grooves so that the front part of the shoe rolls off round several transverse axes. The heel and the ball section are preferably compression moulded from polyurethane. Suede strips are let into the underside of the ball section and sewn on.
In the sports shoe version, the heel of the shoe according to the invention likewise preferably has a U- or C-shape open to the front, but the bridging element is extended beyond the front edge of the heel as far as ball section of the sole, widens there considerably and covers approximately the rear third of the ball section. The ball section of the sole can likewise have a U- or C-shape and open to the back. The overlap section between the bridging element and the ball section of the shoe is preferably considerably larger. In this version, the bridging element simultaneously functions as the waist of the sole. The heel and the ball section are of the sole consist expediently of high-density EVA (ethylene-vinyl acetate) and are preferably compression moulded.
The bridging element preferably consists in both versions of a very rigid and hard plastic and in each case can be made downwardly thicker in the middle, i.e. under the heel of the foot and optionally in the middle of the ball section. On the upper side, the bridging element is smooth and level. The bridging element can consist of fibre-reinforced plastic and likewise be compression moulded.
The edge of the heel and also of the ball section of the sole also are turned up at the outer edge and are also connected to the upper part of the shoe in this section. The upper part of the shoe is in general composed of plastic woven fabric and/or synthetic or real leather and extended up to or over the ankle.
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patent: 2243530 (1991-11-01), None
Arnold Troy
Freddy S.p.A.
Graybeal Jackson Haley LLP
Sewell Paul T.
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