Boots – shoes – and leggings – Boots and shoes – Occupational or athletic shoe
Reexamination Certificate
1999-10-13
2001-05-08
Kavanaugh, Ted (Department: 3728)
Boots, shoes, and leggings
Boots and shoes
Occupational or athletic shoe
C036S115000, C036S114000, C036S107000, C036S073000
Reexamination Certificate
active
06226900
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention concerns a “grind” shoe; i.e., a shoe adapted for executing figures by gliding on various linear supports, such as staircase guard rails, tracks, wall or fence ridges, etc.
Such figures are currently performed in the arena of the so-called “aggressive” practice of in-line skating.
2. Description of Background and Relevant Information
In DE 296 13 508 it was proposed to equip the lower surface of a shoe sole with a reinforcement that can be compared to the reinforcements used on in-line skates and called grind blocks. Such a reinforcement, in fact, consists of a gliding and wear part affixed in a detachable manner to the sole to allow the aforementioned glides.
There is also a shoe on the market, represented in
FIG. 1
, in which the sole
1
comprises, at the level of the arch of the foot a gliding and wear plate
2
fixed to the sole by means of a screw
3
cooperating with an insert (not represented in the Figure) arranged between the sole and the upper.
As shown in
FIG. 1
, the gliding and wear plate of this known shoe has a very “flat” rectangular shape. Such a gliding plate shape does not permit in practice the performance of more than one type of figure, namely, the one called “Royal”, which consists of gliding on a bar or similar surface with both feet parallel and arranged transverse to the gliding direction on said bar.
As a matter of fact, the flat shape of the glide and wear plate does not permit a “locking” effect; i.e., jamming or wedging, on the glide support.
Such a construction therefore allows gliding only, and does not furnish any means for guiding or braking In addition, the insert on which the gliding and wear plate is fixed is arranged directly between the upper of the shoe and the sole and can therefore be a source of discomfort, especially in walking.
Finally, in this known construction, the gliding and wear plate may be easily torn off owing to its being fixed only by the screws
3
, which are also subject to wear.
SUMMARY OF THE INVENTION
The object of the present invention is to overcome these drawbacks and to provide an improved so-called “grind” shoe, which allows especially performing a greater number of figures. This object is obtained in the shoe according to the invention, which is of the type comprising a sole provided on its lower surface with a transverse wear reinforcement arranged in said sole central zone, in that the transverse reinforcement has the shape of a cylinder portion, arranged transversely to the longitudinal axis of the sole, and with a concave curvature oriented downwards.
Indeed, the arched configuration of the gliding and wear reinforcement in the sole central zone allows for abetter fit of the shoe on the gliding surface and allows especially “edge setting” similar to those found in alpine skiing, allowing for slowing down and thus controlling the glide.
The shoe preferably comprises a longitudinal reinforcement, arranged on either side of the Verse reinforcement, and defining a longitudinal groove on either side of said transverse reinforcement. The “cross”-shaped reinforcement thus obtained allows performing other figures, creating the possibility of doing glides along the longitudinal axis of the foot.
REFERENCES:
patent: D. 426054 (2000-06-01), Mazars
patent: 5716723 (1998-02-01), Van Cleef et al.
patent: 5970631 (1999-10-01), Inman
patent: 6006451 (1998-12-01), Morris et al.
patent: 6061930 (2000-05-01), Zinovieff
Arnold Troy
Greenblum & Bernstein P.L.C.
Kavanaugh Ted
Salomon S.A.
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