US2657055A - Ski practice board - Google Patents

Ski practice board Download PDF

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Publication number
US2657055A
US2657055A US210755A US21075551A US2657055A US 2657055 A US2657055 A US 2657055A US 210755 A US210755 A US 210755A US 21075551 A US21075551 A US 21075551A US 2657055 A US2657055 A US 2657055A
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United States
Prior art keywords
skis
platform
turn
base
ski
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Expired - Lifetime
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US210755A
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English (en)
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Denham James Earl
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Individual
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Individual
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Priority to US210755A priority Critical patent/US2657055A/en
Priority to FR1086577D priority patent/FR1086577A/fr
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B69/00—Training appliances or apparatus for special sports
    • A63B69/18—Training appliances or apparatus for special sports for skiing
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/0025—Particular aspects relating to the orientation of movement paths of the limbs relative to the body; Relative relationship between the movements of the limbs
    • A63B2022/0033—Lower limbs performing together the same movement, e.g. on a single support element
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B22/00—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements
    • A63B22/18—Exercising apparatus specially adapted for conditioning the cardio-vascular system, for training agility or co-ordination of movements with elements, i.e. platforms, having a circulating, nutating or rotating movement, generated by oscillating movement of the user, e.g. platforms wobbling on a centrally arranged spherical support

Definitions

  • This invention relates to exercising apparatus in general, and in particular, to apparatus for training the body for the sport of skiing.
  • a particular object of the invention is to provide an apparatus especially adapted to train a skier to use the parallel method of skiing, in which the skis are kept quite close together and parallel, so as to minimize the danger of injury resulting from a fall.
  • Another object is to provide an exercising apparatus upon which a skier may exercise and train the body for the forward bending of the body relatively to the skis (known in skiing terminology as vorlage) which is so important in maintaining proper balance in skiing.
  • a further object is to provide an exercising apparatus which is especially useful in practicing turns.
  • the invention provides apparatus which is particularly adapted for supporting the skier and his skis, while he executes the forward bending and lateral twisting movements of the body which are essential to a properly executed turn.
  • a further object is to provide such an exercising apparatus which is adapted to permit the skier to actually swing his skis about a fixed pivot when the proper bending and twisting movements are executed, but which requires the proper degree of bending and balancing movement before it will permit a pivotal movement to occur.
  • a further object is to provide such an exercising apparatus which has means for adjusting the degree of forward bending which is required in order to achieve the balance through which the pivotal movement of the skis may be attained.
  • a further object is to provide an exercising apparatus of relatively simple and inexpensive construction, for use in enabling a skier to execute all of the above mentioned practice movements about a pivotal axis which is xed relatively to an indoor supporting surface such as the iloor of a gymnasium or any room.
  • a further object is to provide an apparatus adapted to be used in practicing what is known by professional skiers as the horsekick turn, in which the operator, on a turn, rides the forward rocker ends or points of the skis.
  • Fig. 1 is a perspective view of a ski practice apparatus embodying the invention, and of a skier and his skis, attached thereto and using the apparatus in executing the movement of a turn.
  • Fig. 2 is a plan view of the apparatus
  • Fig. 3 is a longitudinal vertical sectional view of the apparatus taken on the line 3-3 of Fig. 2;
  • Fig. 4 is a transverse vertical sectional view of the apparatus taken on the line 4 4 of Fig. 3.
  • a ski practice device comprising generally a base section A and a platform B, which is pivotally mounted upon a post 6 carried by the base A, in order that the platform B may be rotated around pivot 6 while supported upon the base A which in turn rests upon a horizontal supporting surface such as the floor of a room.
  • the base B is relatively long and narrow, being just suiliciently wide at its respective ends so as to provide a support for a pair of skis l, disposed in spaced parallel relation thereon, with the correct spacing for parallel skiing operations.
  • the base B is provided with a pair of clamping bars 8 by means of which the skis l may be tightly clamped to the upper space of the base B.
  • the clamping bars 8 are attached to the base B at the respective ends thereof, by means of bolt 9 and wing nut I0, the bolt 9 extending upwardly through the base B and through the respective clamping bars 8, and having head I I engaging the underside of base B.
  • Base B is mounted on post 6 both for pivotal movement around the axis of the post and also for lateral fore and aft tilting movement. To this end, the base B rests upon the crowned upper end I2 of a fulcrum member I3 through which the post 6 extends. Fulcrum member I3 is of spool form, having a central bore I4 through which the post 6 projects, and having its base portion cemented to base A. Post G has a pressfit in an opening I5 in base A, and has a head I 'I engaging the underside of base A, being received within a recess I 8 therein.
  • Post 6 has an upper end portion projecting upwardly from the crowned surface I2 and receivable in any one of a series of openings I9, 19a, Ib,
  • Openings I9-I9d are disposed along the central longitudinal axis: of the base B and are positioned within the forward half of the base, which may be referred to as the head portion thereof, and is designated by the numeral 20.
  • the other half of the base will be referred to as the tail portion and is designated by the numeral 2
  • the operator In using the apparatus, the operator, indicated at 24, rst attaches the skis to the platform B, clamping them securely beneath the clamping bars 8.
  • the ends of the bars 8 may be used as guides or indicators to determine the proper spacing for the outer sides of the, ⁇ skis 1.
  • the proper spacing may be easily determined by arranging the skis with their outer edges'flush with the outer ends of the clamping bars I.
  • the skier With the skis thus attachedv to the platform B, the skier, having donned his ski shoes steps into the ski bindings (indicated generally by the reference numeral 26) and manipulates the latter to secure the shoes to the skis in the customary manner. He then takes in his respective hands the conventional ski poles 2.7, and is ready to use the apparatus in ski-movement exercises,
  • the operator has selected one of the openings lil-49d, determined by the degree of vorlage that he expects to put into the exercises.
  • the hole I9 is to be used by a beginner who is unable to bend very far forwardly.
  • 9a, 19h,- etc., are for progressively advanced stages' of proficiency.
  • the skier attempts to shift his weight forwardly to the point where he-can rest the heel 2l away from the supporting surface 23, and balance the platform upon the fulcrum crown l2. Having achieved a balanced condition, it will then be possible, by executing the proper twisting'movements (counter ruade and ruade) to rotate the platform around the post E so as to simulate a turn.
  • the skier In modern skiing, ski experts have become conf vinced that the older and perhapsmore common technique of turning, known as the stem-turn or stem-christie, should be discardedvin favor of the more modern technique, utilizing what has beenV designated the parallelschwungfy in which the skis are kept practically parallel throughoutthe turn.
  • the skier In the stem-turn, the skier, assuming that he is going to make a left turn downhill, executes a preliminary counterswing to the right. He then goes into the left turn by shifting the heel of the left ski leftwardly downhill, keeping the point thereof adjacent theV point of the right ski (a partial snow plow position) grips the snow for an instant and then makes a left swing into the turn (the stemchrstie).
  • the stemchrstie Unfortunately, in this maneuver, if the inboard ski is projected with a shade too much edge the skis are veryapt to cross, tripY the skier and cause a dangerous head over heels tumble.
  • the invention is operative to restrain the operator from any tendency to go into a stemchristiel Parallel skiing has the fundamental advantage of making it substantially impossible to cross the skis, the skis being held so closely together that any tendency to cross is nipped in the bud, and there is very little tendency for the skis to cross under any circumstances, as long as they are held thus closely parallel.
  • the technique of making a parallel turn is more difficult to acquire than the more common stem-turn
  • the skier executes the turn by a twist upon the center of the skis under the feet, and does not find it necessary tov be concerned with weight shift.
  • the necessity for poking one ski out and diving off into space, hoping that the skis will go in the same direction as the dive, is eliminated.
  • the skis arekeptfirmly under the operator at all timesandhe isY able to lean as far forwardly or backwardly. as,
  • theoperator executes a counterrotation while bearing his weight on the heels (the running position) .f
  • the skier commences the ruade or body swing inthe direction of the turn.
  • thev weight must be shifted forwardly towards the-points of the skis. Accordingly, as he exe.- outes the ruade, he leans forwardly.
  • the operator at the middle of the turn, attempts to lean far enough forwardly to lift the tail portion of the platform B from the floor, balancing the platform upon the fulcrum crown I2. portion of the platform leaves the floor, the swing of the body will cause the skis to swing in the,
  • the invention is especially adapted for use in shifting directly from a right turn into a left turn and directly back into a right turn in a continuous slalom motion in which the body alternately swings rst in one direction and then the other. It is not necessary (as it is in certain prior practice appara-tus) to arrest the movement from an elevated position down to a bottom position on an inclined track on which foot supporting members are mounted, and climb back to the top of the track in order to commence the next movement.
  • the invention may utilize opening ISe which is disposed at the very forward tip of the platform B, ahead of the forward clamping bar 8. This makes it possible to tilt the platform upwardly to a degree where the points of the skis may engage the floor surface without lifting the platform olf of the post 5.
  • the platform will ordinarily be tilted downwardly and forwardly to a point where the forwardly projecting portions of the skis will make light contact with the iioor surface, and that the turn will actually be executed by sliding these forward portions of the skis against the surface, with a feel simulatingthat of an actual turn.
  • Both platform and base are restricted in horizontal dimensions to allow .b
  • the apparatus may be used for practicing the more simple movements such as the lateral tilting of the skis when skiing down hill on the diagonal (at an angle to the line of steepest declivity) and for practicing the shifting of the weight from one foot to the other, as is utilized as a component of the movements executed in making a turn.
  • Other simple practice exercises embody the simple bending of the body forwardly in the vorlage, to strengthen the ankles and leg muscles for such vorlage movements.
  • the foot member 22 serves to support the platform in a substantially level position, with the weight centered between the universal pivot fulcrum and the heel of the platform, when the operator is not bending forwardly. It also facilitates lifting the heel of the platform off the floor when the proper degree of forward bend has been attained, since the platform is already in a substantially level position and need not be lifted upwardly from a position of substantial rearward inclination.
  • apertures le-lsd being disposed on the longitudinal central axis of the platform B, are exposed between the skis 'I to facilitate insertion of the post in a selected aperture.
  • the shifting may be done without getting off the skis. This is accomplished by suddenly dropping the hips and utilizing the inertia of the upper torso in lifting the feet, skis and platform in an upward kick in which the platform is shifted to bring another hole into registry with the post.
  • a platform of relatively narrow, elongated form said platform having means for securing thereto a pair of skis in closely spaced parallel relation, paralleling the longitudinal axis thereof, said platform having along said longitudinal axis a plurality of apertures spaced fore and aft, and a base adapted to be supported upon a floor surface, said base having a centrally disposed fulcrum member projecting upwardly therefrom and having an upper crowned bearing surface adapted to bear against the underside of said platform for supporting the same for universal pivotal movement, said base having a pivot post projecting upwardly from the center of said fulcrum member and receivable selectively in any one of said apertures for providing a universally pivotal connection between said platform and said base, said pivotal connection being disposed forwardly of the center of attachment of the operators feet to the skis as secured to said platform, whereby the heels of the skis normally gravitate toward the supporting surface, said center of attachment being suiciently close to
  • a platform having means for clamping thereto a pair of skis having conventional shoe bindings, said platform being of relatively narrow, elongated form and having, forwardly of its longitudinal center, a
  • saidapiwtallconnection-1:05 simulate-.a skiin turn, or'may'befreely tiltedeither'forwardly or rearwardly or later.- ally-r about. said. pivotal connection..

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US210755A 1951-02-13 1951-02-13 Ski practice board Expired - Lifetime US2657055A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US210755A US2657055A (en) 1951-02-13 1951-02-13 Ski practice board
FR1086577D FR1086577A (de) 1951-02-13 1953-08-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US210755A US2657055A (en) 1951-02-13 1951-02-13 Ski practice board

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US2657055A true US2657055A (en) 1953-10-27

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733922A (en) * 1956-02-07 diego
US2964315A (en) * 1959-11-02 1960-12-13 Neil F Dinning Ski-training device
US3021137A (en) * 1959-04-15 1962-02-13 Dale W Palmer Ski trainer
US3100639A (en) * 1961-04-26 1963-08-13 Everett D Bonewitz Exerciser
US3207510A (en) * 1963-03-27 1965-09-21 Frederick M Gibson Ski training device
US3364875A (en) * 1965-01-07 1968-01-23 Bilaisis Viktoras Training device for teaching the art of sking
US4092787A (en) * 1976-05-13 1978-06-06 Adolf Kaempfen Apparatus for teaching the execution of a ski turn on skis
US4290601A (en) * 1977-05-23 1981-09-22 Mittelstadt Robert A Wobble plate exercise device and toy
US5496239A (en) * 1993-09-16 1996-03-05 Kallman; Robert Exercise and ski simulating device
US20090227426A1 (en) * 2005-05-26 2009-09-10 Graeme Andrew Dubar Activity board
US10754682B2 (en) * 2014-11-26 2020-08-25 Henry Bernard Bradford, III Snow ski training apparatus and methods of use

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478166A (en) * 1892-02-10 1892-07-05 Exercising apparatus
US1565484A (en) * 1923-12-01 1925-12-15 Robert B Mcwhirter Exerciser
FR832295A (fr) * 1938-01-20 1938-09-23 Appareil d'entraînement à l'exercice du ski
US2274081A (en) * 1941-06-05 1942-02-24 Mautin Francois Ski exercising machine
US2455274A (en) * 1945-09-28 1948-11-30 Clarence A Scriver Ski trainer and exerciser
US2573808A (en) * 1948-08-12 1951-11-06 George N Moore Apparatus for teaching and practicing skiing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US478166A (en) * 1892-02-10 1892-07-05 Exercising apparatus
US1565484A (en) * 1923-12-01 1925-12-15 Robert B Mcwhirter Exerciser
FR832295A (fr) * 1938-01-20 1938-09-23 Appareil d'entraînement à l'exercice du ski
US2274081A (en) * 1941-06-05 1942-02-24 Mautin Francois Ski exercising machine
US2455274A (en) * 1945-09-28 1948-11-30 Clarence A Scriver Ski trainer and exerciser
US2573808A (en) * 1948-08-12 1951-11-06 George N Moore Apparatus for teaching and practicing skiing

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2733922A (en) * 1956-02-07 diego
US3021137A (en) * 1959-04-15 1962-02-13 Dale W Palmer Ski trainer
US2964315A (en) * 1959-11-02 1960-12-13 Neil F Dinning Ski-training device
US3100639A (en) * 1961-04-26 1963-08-13 Everett D Bonewitz Exerciser
US3207510A (en) * 1963-03-27 1965-09-21 Frederick M Gibson Ski training device
US3364875A (en) * 1965-01-07 1968-01-23 Bilaisis Viktoras Training device for teaching the art of sking
US4092787A (en) * 1976-05-13 1978-06-06 Adolf Kaempfen Apparatus for teaching the execution of a ski turn on skis
US4290601A (en) * 1977-05-23 1981-09-22 Mittelstadt Robert A Wobble plate exercise device and toy
US5496239A (en) * 1993-09-16 1996-03-05 Kallman; Robert Exercise and ski simulating device
US20090227426A1 (en) * 2005-05-26 2009-09-10 Graeme Andrew Dubar Activity board
US10754682B2 (en) * 2014-11-26 2020-08-25 Henry Bernard Bradford, III Snow ski training apparatus and methods of use
US10761878B2 (en) * 2014-11-26 2020-09-01 Henry Bernard Bradford, III Ski genie training apparatus and methods of use

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Publication number Publication date
FR1086577A (de) 1955-02-14

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