Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Reexamination Certificate
2000-01-24
2001-12-11
Kavanaugh, Ted (Department: 3728)
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
C036S054000
Reexamination Certificate
active
06327796
ABSTRACT:
The present invention refers to a ski boot, in particular for telemark skiings
BACKGROUND OF THE INVENTION
This ski technique in which the heel is not rigidly held on the ski, but is free to rise, requires the use of special ski boots. This type of ski boot has a flexible area in correspondence with the metatarsus.
Ski boots of this type are composed of a sole, a shell in plastic material which is integral with the sole, where the foot of the wearer is housed, and a leg piece hinged to the shell substantially at the ankle and designed to wrap the lower portion of the wearer's leg at the back and at the sides.
A tongue for the frontal closure of the ski boot is fixed to the upper frontal area of the ski boot, and lies inside the front lateral portions of the leg piece.
The ski boot is provided with closure members on the upper part of the shell and between said front lateral portions of the leg piece.
Said flexible area generally consists of a corrugated portion located on the shell in the area of the metatarsus o f the wearer; said corrugated portion has one or more grooves which extend transversely to the shell and which begin and end in proximity with the sole, on opposite sides of the shell itself.
The flexing of the corrugated portion causes lateral swelling of the shell in correspondence with said portion, and exposes it to rubbing on the other ski, and consequently to excessive wear with respect to the other parts of the ski boot.
The consequence of this precocious wear of the internal part of the corrugated portion on the inside of the ski boot is the precocious replacement of the entire ski boot, even though this may be in excellent condition in all other parts.
SUMMARY OF THE INVENTION
The aim of the present invention is to provide a ski boot which resolves the problem of precocious wear of the internal part of the corrugated area, without prejudicing the flexibility or the technical characteristics.
According to the invention a ski boot is therefore made comprising a sole, a shell of plastic material designed to house the foot of the wearer and comprising a flexible portion in the metatarsus area, a leg piece hinged to the shell substantially at the ankle and designed to wrap the lower portion of the leg of the wearer at the back and at the sides, a front closure tongue and fastening devices, characterised by including releasable securing means between said tongue and said shell, and in that said tongue includes a lateral portion which extends on an internal lateral wall of said shell, said portion projecting on the internal side of said shell beyond the profile of the flexible portion.
In this manner a ski boot of the type used for the “telemark” technique is obtained which resolves the problem described above as afflicting ski boots of the known type. In fact the rubbing, and therefore the wear, of the boot on the ski worn on the other foot, does not occur on the shell, in correspondence with the flexible portion at the metatarsus, but on the portion of the tongue which extends along the lateral internal wall of the shell, and once this portion is worn or damaged just the front closure tongue can be replaced, rather than the entire ski boot.
REFERENCES:
patent: 3972134 (1976-08-01), Kastinger
patent: 4601118 (1986-07-01), Zanatta
patent: 4677769 (1987-07-01), Ahmad et al.
patent: 5410822 (1995-05-01), Vaccari
patent: 5611155 (1997-03-01), Brown et al.
patent: 5651199 (1997-07-01), Chaigne et al.
patent: 5675917 (1997-10-01), Falguere et al.
patent: 353532 (1990-02-01), None
Calzaturificio S.C.A.R.P.A. S.p.A.
Kavanaugh Ted
Ladas & Parry
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