U.S. patent number 3,900,204 [Application Number 05/373,575] was granted by the patent office on 1975-08-19 for mono-ski.
Invention is credited to Robert C. Weber.
United States Patent |
3,900,204 |
Weber |
August 19, 1975 |
Mono-ski
Abstract
A mono-ski for use on snow, the ski having releasable boot
bindings arranged thereon to secure the user's boots in fore and
aft relationship on the ski at an angle to the longitudinal axis of
the ski. Preferably, the ski has a width equal to or slightly
greater than the length of the user's boots and the length of the
ski is approximately equal to the height of the user. The front of
the ski is upturned approximately 45.degree. and the ski is further
constructed such that it is sufficiently flexible to bend over
irregularities, obstacles, etc. in the surface of the snow during
use.
Inventors: |
Weber; Robert C. (Hyattsville,
MD) |
Family
ID: |
23472985 |
Appl.
No.: |
05/373,575 |
Filed: |
June 25, 1973 |
Current U.S.
Class: |
280/607 |
Current CPC
Class: |
A63C
10/103 (20130101); A63C 10/285 (20130101); A63C
10/10 (20130101); A63C 10/12 (20130101); A63C
10/28 (20130101); A63C 5/03 (20130101) |
Current International
Class: |
A63C
9/00 (20060101); A63C 5/00 (20060101); A63C
5/03 (20060101); A63c 005/04 () |
Field of
Search: |
;280/11.35N,11.35C,11.13R,11.13S,11.13W,12H,11.35R
;9/31A,31AA,31E |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
64,864 |
|
Dec 1938 |
|
NO |
|
228,962 |
|
Sep 1943 |
|
CH |
|
Other References
Surfer, Vol. 7, No. 1, March 1966, pp. 31 and 35..
|
Primary Examiner: Blix; Trygve M.
Assistant Examiner: Kazenske; Edward R.
Attorney, Agent or Firm: Browne, Beveridge, DeGrandi &
Kline
Claims
What is claimed is:
1. A mono-ski for skiing on snow having a width of about 10 to 12
inches and at least equal to the length of a user's boots, said ski
having an intermediate portion with concavely formed opposite sides
and said ski further having boot binding means mounted thereon for
securing both of the user's boots in a fore-aft relationship with
respect to each other on the ski with both of said boots extending
at a substantial angle to the longitudinal axis of the ski, said
binding means being disposed to position a rearwardly positioned
boot at a greater angle than the forwardly positioned boot with
respect to the longitudinal axis of the ski.
2. The mono-ski defined in claim 1 wherein said boot binding means
is positioned on the ski to secure the user's forwardly positioned
boot generally at the center of gravity of the ski.
3. The mono-ski defined in claim 2 wherein said binding means
includes two pairs of individual binding elements fixed to the ski
in fore and aft relationship on the ski for respectively
individually securing the user's boots.
4. The mono-ski defined in claim 3 wherein the elements of each
pair included in said binding means engage the opposite sides of
the boot.
5. The mono-ski defined in claim 3 wherein the front of the ski is
turned upwardly and wherein the ski has an intermediate portion
with a flat upper surface on which the binding elements are
mounted.
6. The mono-ski defined in claim 5 wherein the thickness of the
mono-ski gradually diminishes from said intermediate portion
towards the opposite ends thereof.
7. The mono-ski defined in claim 6 wherein said front portion of
the ski is turned upwardly from the level of the ski at an angle of
approximately 45.degree..
8. The mono-ski defined in claim 1 wherein said binding means is
positioned such that the rearwardly positioned user's boot is held
at approximately 90.degree. to the longitudinal axis of the ski and
wherein the forwardly positioned user's boot is held at an angle
less than 90.degree. relative to the longitudinal axis of the
ski.
9. The mono-ski defined in claim 8 wherein said binding means is
positioned such that the forwardly positioned user's boot is held
at an angle of approximately .BECAUSE..degree. relative to the
longitudinal axis of the ski.
10. The mono-ski defined in claim 1 wherein the binding means is
positioned on the ski such that both of the user's boots are held
on the ski at an angle less than 90.degree. relative to the
longitudinal axis of the ski.
11. The mono-ski defined in claim 10 wherein said binding means is
positioned on the ski such that the forwardly positioned user's
boot is located generally at the center of gravity of the ski.
12. The mono-ski defined in claim 10 wherein the binding means is
positioned on the ski such that the user's boots are held generally
but not quite parallel to each other.
13. The mono-ski defined in claim 12 wherein the binding means is
positioned on the ski such that the forwardly positioned user's
boot will extend approximately 25.degree. relative to the
longitudinal axis of the ski.
14. The mono-ski defined in claim 12 further including a wedge
means to be positioned between the ski and the rearwardly
positioned user's boot.
Description
BACKGROUND AND OBJECTS OF INVENTION
Snow skiing on a single ski termed a "mono-ski" is a relatively
recent development, the state of which prior to the present
invention, is believed to be exemplified in the disclosures of U.S.
Pat. Nos. 3,154,312 and 3,378,274, the inventors in these patents
being named as J. Marchand and S. R. Poppen, respectively. The ski
of Marchand U.S. Pat. No. 3,154,312 suffers from the drawback that
the boot bindings are mounted on the ski in side-by-side parallel
relationship so as to hold the skier's boots together in close
parallel relationship. This limits the skier's balance and his
maneuverability of the ski.
While the skier's balance when using the ski of Poppen U.S. Pat.
No. 3,378,274 may be enhanced since the Poppen ski does not contain
any bindings and the skier's feet are free to move on the ski,
maneuverability of the Poppen ski is indeed limited. This is
because the skier's boots are not rigidly fastened to the ski to
allow them to transmit the body weight and distribution to the ski
which is required in order to achieve sufficient edge control and
other ski maneuverability.
It is therefore an object of the present invention to provide a
novel and improved mono-ski capable of providing the user with
sufficient balance control while at the same time improving the
maneuverability of the ski with the ultimate object of enhancing
amusement and safety to the skier as well as adaptability to
various snow conditions, ski courses and slopes.
A further object of the present invention is to provide such a
mono-ski which will achieve the above objects and yet may be
manufactured with conventional or other ski board constructions
readily available including various types of commercially available
boot bindings including the Spademan binding.
SUMMARY OF INVENTION
The above and other objects are achieved according to one
embodiment of the present invention, in a ski which has a width
equal to or slightly greater than the length of the user's boot and
a length approximately equal to the height of the user, and with
the forward portion of the ski being upturned approximately
45.degree..
In accordance with the present invention, a pair of boot bindings,
clamps or other suitable mechanical fastening mechanisms are
attached to the ski in positions spaced fore and aft of the ski so
as to hold the skier's boots in fore-aft spaced relationship with
the longitudinal axis of the boots extending at an angle to the
longitudinal axis of the ski. Additionally, it is important that
the forwardly positioned boot binding be located such that the
center of the boot generally coincides with the center of gravity
of the ski.
In one embodiment, it is preferred that the rearwardly positioned
binding be located such as to hold the rear boot to extend
generally at right angles to the longitudinal axis of the ski while
the forwardly positioned binding is positioned to hold the forward
boot at an angle of less than 90.degree. preferably 45.degree. to
the longitudinal axis of the ski. Any suitable boot bindings,
clamping or fastening mechanisms may be employed to releasably hold
the boots in the aforesaid position. However, it is preferred that
the bindings clamp or engage the boot on opposite sides thereof
such as effected by the commercially available Spademan binding,
otherwise known as the Spademan Release System which is marketed in
the United States by Phase IV Ltd.
According to another embodiment of the present invention, the boot
bindings are placed fore and aft of the ski but closer and
generally parallel to each other so that the skier's boots are held
in the same relative position but with the forward boot at a
slightly lesser angle to the longitudinal axis of the ski than the
rearwardly positioned boot. For example, in the present embodiment,
the bindings would be positioned on the ski so that the forwardly
positioned boot extends at an angle of approximately 25.degree. to
the longitudinal axis of the ski while the rearwardly positioned
boot would extend at a slightly larger angle. Additionally, with
this embodiment, it is preferred that a wedge piece be employed
below the rearwardly positioned boot to aid the skier in properly
positioning his right leg so as to avoid interference between his
knees. The wedge angle may vary depending on the desirability or
leg characteristics of the skier, however, the maximum wedge angle
is preferably 20.degree..
DRAWINGS
Other objects and advantages of the present invention will become
apparent from the following more detailed description taken in
conjunction with the attached drawings in which:
FIG. 1 is a perspective view of a mono-ski embodying the present
invention and also illustrating a person in the normal use of the
mono-ski;
FIG. 2 is a plan view of the mono-ski of FIG. 1 also illustrating
the skier's boots secured to the ski by boot bindings fixed to the
ski;
FIG. 3 is a front elevational view of the ski of FIG. 2;
FIG. 4 is a view generally similar to FIG. 1 but illustrating
another embodiment of the invention;
FIG. 5 is a plan view of the ski of FIG. 4;
FIG. 6 is a front elevational view of the ski of FIG. 5; and
FIGS. 7, 8 and 9 are perspective views illustrating various
postures which may be achieved by a skier in controlling and
maneuvering the mono-ski of the present invention.
DETAILED DESCRIPTION
Referring now to the drawings in detail and initially to FIG. 1,
there is shown for illustrative purposes only a mono-ski 10
embodying the present invention and a skier 12 mounted on the ski
and assuming a posture representative of that while using the ski.
Ski 10 may have any suitable flexible construction such as may be
conventional or otherwise, with a width dimension equal to or
slightly greater than the length of the skier's boots, for example
10 to 12 inches, and a length dimension preferably approximately
equal to the height of the skier who will use the mono-ski. The toe
14 of the mono-ski is upturned preferably at an angle of
approximately 45.degree. from the major plane of the ski while in
the specific embodiment shown, the upper central portion of the ski
at 16 has a generally flat surface with the thickness of the ski
narrowing gradually away from the central area 16 towards the
opposite ends of the ski. Additionally, as shown in FIG. 2, the
specific mono-ski is gradually and slightly recessed concavely in
its outline at the central portions thereof while the rear corners
of the ski are rounded.
In accordance with the present invention, ski 10 is provided with
bindings, clamping or other suitable mechanical fasteners for
releasably securing the skier's boots 20 and 26 in a predetermined
improved arrangement spaced fore-aft of the ski as clearly shown in
the drawings. The arrangement of the boot bindings is such that the
forwardly positioned boot 20 will extend at an angle A less than
90.degree. and preferably about 45.degree. relative to the
longitudinal axis 22 of the ski; 24 indicating the longitudinal
axis of the forwardly positioned boot 20. Additionally, the
rearwardly or aft positioned boot binding is located such that it
will secure the rearwardly positioned boot 26 to extend at an angle
of approximately 90.degree. relative to the longitudinal axis 22 of
the ski as shown in FIG. 2. The relative spacing between the
forward and rearward boots 20 and 26 is proportionately shown in
FIG. 2, it being noted that both boots are located on the central
flat portion 16 of the ski. It is important, that the forwardly
positioned boot 20 be located such that its center generally
coincides with the center of gravity 28 of the ski as indicated in
FIG. 2.
Any suitable mechanical bindings, clamps or fasteners may be
employed to position the boots at a predetermined arrangement
described above although it is preferable that such fastener
elements be of the releasable type for safety purposes. In the
preferred embodiment, the bindings include two pairs of clamping
elements 30 and 32 adapted to engage the opposite sides of the
associated boot generally at the midportions thereof as illustrated
in FIG. 2. Such clamping elements preferably employed are those
utilized in the commercially available Spademan Release System
wherein the clamping elements 30 and 32 are mounted on the ski to
move between outer positions for receiving the boots and inner
positions biased by springs 34 and 36 for releasably clamping the
boots relative to the ski. In the embodiment shown in FIGS. 1 to 3,
it is preferred that the spring mechanisms 34 and 36 which actuate
clamp elements 30 and 32 be positioned to extend laterally of the
boots as indicated in FIG. 2. Perhaps it should be noted that the
typical Spademan binding utilizes a plate fixed to the bottom of
the skier's boot for gripping by clamp elements 30 or 32; and the
clamp actuating spring mechanisms 34 or 36 are positioned to extend
rearwardly of the heel of the boots for use on conventional skis.
In order to adopt the Spademan binding to the mono-ski of the
present invention, the plates on the skier's boots merely have to
be oriented 90.degree. from the normal position used for skiing on
two skis. It should be understood that any other type of clamping
or binding mechanisms may be employed in addition to the Spademan
system in carrying out the present invention.
If desired, a cable 39 may be attached to the ski at the binding
thereof which cable may be also attached to the boot or the leg of
the skier so that in the event the skier is released from the ski
during use, the ski 10 will not run away but will remain tied to
the skier's leg through the cable 39.
Referring now to FIGS. 4 through 6, there is illustrated a modified
form of the invention wherein the bindings 30, 32 are positioned on
the ski so as to hold the boots in a generally parallel fore-aft
relationship but with the forward boot 20 positioned at a slightly
lesser angle B, say 25 degrees relative to the longitudinal axis 22
of the ski than the rearwardly positioned boot 26. Also in this
embodiment, it will be noted from FIG. 5, that the bindings 30 and
32 are placed closer together so that the boots 20 and 26 are
positioned closer together than in the above-described embodiment.
In view of the closer positioning of the boots 20 and 26 in the
embodiment of FIGS. 4 to 6, it is preferred that a wedge member 40
be employed below the rearwardly positioned boot to ensure that the
knees of the skier will not interfere with each other. Wedge 40 may
be incorporated as a separate piece or as part of the sole of the
boot 26. While the angle W shown in FIG. 6 of the wedge may vary
depending on the physical characteristics of the skier or his
preference, the angle should not exceed 20.degree..
In view of the closer positioning of the boots 20 and 26 in the
embodiment of FIGS. 4 through 6, it is preferred that the spring
actuating mechanism 34 associated with the forward binding 30 be
positioned rearwardly or beyond the heel of the boot 20 which, as
noted above, is the conventional position for a Spademan binding.
This avoids interference with the rearwardly positioned boot 26 and
the associated clamp elements 32.
It will thus be seen that with the present invention, the skier may
shift his weight transversely as well as longitudinally of the ski
to provide the desired maneuverability and balance as illustrated
in FIGS. 7, 8 and 9. In this regard the skier may shift his weight
to place pressure on either edge of the ski while relieving
pressure on the opposite edge. Additionally, the skier may shift
his weight between the forward and rearwardly positioned legs to
control speed. It is furthermore noted that the present invention
requires no accessories for effective skiing, however, ski poles
such as used in conventional skiing may be used with the mono-ski
of the present invention at the discretion of the skier.
Additionally, the construction of the mono-ski of the present
invention may be varied to suit the user such that flex, camber,
torsional rigidity, dampening effect, side-cut and weight may be
produced in a combination of characteristics as desired by the user
to most effectively utilize the user's size, weight and athletic
ability.
Furthermore, while certain preferred positions of the bindings and
the ski boots have been disclosed above, it should be emphasized
that these positions may be varied within the limits described to
suit a particular user.
* * * * *