Land vehicles – Ski or skate appliance or attachment – Ski pole
Patent
1992-11-12
1994-05-31
Focarino, Margaret A.
Land vehicles
Ski or skate appliance or attachment
Ski pole
A63C 1122
Patent
active
053163400
DESCRIPTION:
BRIEF SUMMARY
FIELD OF INVENTION
This invention relates to the production of sports equipment, and more particularly to the production of ski sticks for skating stride.
PRIOR ART
Known in the art is a ski stick for skating stride (see EP No. 0266329, cl. A63C 11/22, 1988) comprising a rod with a supporting basket at one end thereof and a handle at the other end the latter consisting of being interconnected a tube, a cross-piece with two portions of different lengths of which the larger portion intended for placing a palm is inclined to the tube axis at an acute angle, and a boss projecting above the cross-piece, displaced toward the smaller portion of the cross-piece relative to the tube axis, and having a means for attaching a hand strap.
This already known ski stick allows to increase skiing speed. However, the skier's hand pressure acting on the ski stick handle turns out to be offset relative to the rod axis, and this requires an additional energy to be spent by the skier to bend the rod.
SUMMARY OF INVENTION
It is the principal object of the present invention to provide a ski stick for skating stride which would allow to align the rod axis and the line of hand pressure action and thus prevent the rod from bending sideward.
The essence of the present invention is that in a ski stick for skating stride the horizontal axis of the boss lying in its cross-section perpendicular to the tube axis is offset relative to the horizontal axis of the tube to enable positioning of the boss with a displacement toward the skier's hand grip, and that the larger portion of the cross-piece, as seen from above, is oriented at an obtuse angle in relation to the smaller portion and swung toward the side opposite to where the strap attaching means is located.
It is of advantage to have the angle of inclination of the larger portion of the cross-piece to the tube axis in the range of 30.degree. to 60.degree. and the angle between the larger and smaller portions of the cross-piece in the range of 140.degree. to 150.degree..
It is also of advantage to coat the handle with an elastic foamed synthetic material.
The present invention allows to increase the skiing speed with the same skier's energy spent and also to improve the ski stick ergonomic properties.
BRIEF DESCRIPTION OF DRAWINGS
The invention will now be further explained with reference to a preferred embodiment thereof taken in conjunction with the accompanying drawings, wherein:
FIG. 1 is a three-dimensional view of a ski stick for skating stride in accordance with the present invention;
FIG. 2 is a front view of the right hand handle of the ski stick in accordance with the present invention;
FIG. 3 is a top view of the right hand handle of the ski stick in accordance with the present invention; and
FIG. 4 is a cross-sectional view along line A--A in FIG. 2 in accordance with the present invention.
PREFERRED EMBODIMENT OF INVENTION
A ski stick for skating stride (FIG. 1) comprises rod 1 with supporting basket 2 at one end thereof and handle 3 at the other end the latter (FIG. 2) consisting of being interconnected tube 4, cross-piece 5 with two portions of different lengths of which larger portion 6 intended for placing a palm is inclined to axis 8 of tube 4 at acute angle .alpha., and boss 9 projecting above cross-piece 5, displaced toward smaller portion 7 of cross-piece 5 relative to axis 8 of tube 4, and having means 10 for attaching a hand strap.
Horizontal axis 11 of boss 9 lying in its cross-section perpendicular to axis 8 of tube 4 is offset relative to horizontal axis 12 of tube 4 to enable positioning of boss 9 with a displacement toward the skier's hand grip.
Larger portion 6 of cross-piece 5, as seen from above (FIG. 3), is oriented at obtuse angle .beta. in relation to smaller portion 7 and swung toward the side opposite too where strap attaching means 10 is located.
Angle of inclination .alpha. (FIG. 2) of larger portion 6 of cross-piece 5 to axis 8 of tube 4 is in the range of 30.degree. to 60.degree., and angle .beta. (FIG. 3) between larger portion 6 and
REFERENCES:
patent: 3436090 (1969-04-01), Lange et al.
patent: 3658356 (1972-04-01), Van Reyper
patent: 4750760 (1988-06-01), Gurley
patent: 4775168 (1988-10-01), Dalebout
patent: 4790562 (1988-12-01), Skard
Focarino Margaret A.
Mar Michael
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