US1751252A - Self-propelled sled - Google Patents

Description

March 18, 1930. c. SCHUBERT 5 SELF PROPELLED SLED Filed March 22, 1928 III II I 10 CHARLES SGHUBERT Patented Mar. 18, 1930 CHARLES SCHUBERT, OF LONG ISLAND CITY, NEW YORK SELF-PROIPELLED SLED Application filed March 22, 1928. Serial No. 263,660.

the super-structure of the sleigh, beneath the supporting platform thereof connected with l a hand and foot pedal actuatingmeans for causing a gripping shoe propelling means to engage the surface upon which it rests to project the same forwardly by reason ofa reciprocal action of said shoe, 1 and propelling me'ans, and of means controlled by said hand and foot-pedal actuating means for freeing such mechanism from the surface upon which it rides to return same automatically to the point of its engagement with the gliding sur- 5 face to continuously project or drive the sled in the desired direction. Another object of the invention exists in the adaptation of the surface gripping propelling means as a brake mechanism during the moment of using the sled for coasting or'gliding purposes since it is apparent that said propelling shoe may be so actuated by the hand lever and foot pedals as to permit same to engage the riding surface and held in'contact therewithtoform a" positive braking means for use at moments of danger or possible injury to the rider of the device.

In the following I describe the general embodiment of the invention, the features thereof being moreparticularly defined hereinafter'in the claims.

Fig. 1 is a side elevation of the sled ;'Fig. 2 is a planview (parts being broken away) of v said sled; Fig. 3is a detail side'elevation of the propelling mechanism of the sled; Fig.

4 is a detail side elevation 'showingsaid propelling mechanism in the forward stroke of said mechanism; and Fig. 5-is a cross sectiona1 view of the sled on the line 5-5 of Fig. 1 of the drawings.

form of steel runners 3. Runners 3, at the front end of the sled are held rigid at that point by means of cross head or strap 4.

Platform or body board 2, has depending therefrom by means of swinging yokes 5, mounted in brackets 6, a guide table 7, open at its bottom and provided with side channels 8, arrangedto receive with sliding relation thereto the supporting plate 9, of propeller and brake shoe 10. The shoe 10, consistsof two depending blades 11, having mounted on their lower edges friction straps 12, of rubber or any other suitable material andthe supporting plate 9, has mounted therein rollers 13, pivotally supported at 15 therein and arranged to engage and roll; upon the under surface 14:, of the swinging table 7, and said blades 11, have mounted therein on their respectiveouter surfaces supporting pins 15 arranged to receive portions'of the mechanism the object of which is hereinafter described. Swinging table 7, is fulcrumed on yokes 5, in brackets 6 through which it may swing forwardly and laterally or in a reciprocal action by reason of the propellingactuating mechanism controlled by reason of the hand and foot movement of the projecting or propelling mechanism.

The reciprocal movement of table 7', is controlled through the functioning of foot pedals 16, pivotally mounted on hinged rockers 17,

fastened to cross head't, of sled 1, andhaving mounted on their lower ends'orheel portions thereof, stay rings 18 receiving one end of each of the thrust rods 19', the opposite ends, of which are pivotally fastened to yoke 20, mounted in bracket's :21, ontheunder side of sled body 2.. Said yoke 20,,has disposedon its lower arm portion thereof rollers 22, engag ing the upper surface of table 7, which latter surface has fastenedthereon a stapes, to limit the forward swing of said table 7,,and

. to'also'provide an assisting means of returning said carriage or table .7, to its forward position or the beginning of the projecting stroke of the propelling mechanism, as well as providing the means of moving said table in a forward and lateral as well as Vertical up and'down movement to bring the propelling and brakeshoe 1.0, into; engagement with the surface ru iomwhiiclfr the structure rides, all of said action being controlled and actuated by said foot pedals 16. A compression spring 24, has one of its endsi'attaclied to tiabl'e i", the other end being fastened to a bracket 25, mounted on the under side of platform 2; of sled 1. V s

A projecting strut 26, ofbod'y 2, of sled 1,, -has mountedtherein on pin-1 27}, anoperating or propel-ling; arm or lever 28, provided at its upper end with hand piecef29-andehaving inou-ntedinitselower end beneath-body: 2, ashaft-30,,-thatreceives the ends 3 1-, of primary levers-32, the opposite; ends of which are; pivoted t'o the short ends of levers 33,, mounted; onstay bolt 34, supported on brackets fastened tor-the said under side of body 2, the other or longerleveragev ends 36, of said! levers, 33 carrying the ends of draw" rods 37, thelateralends of which are fastened to: or attached uponipins 15 on'the side blades 11,015 propelling andbrake shoe, 10,-a-ll of the lattermeehanism and that of the; projecting; structure of thedevicebeing controlled by the-forward and backward; rockingmanipulation of: the hand lever 28.

The-operation of the str-uctureis as fol lows v The operator seated upon the sled body 2,,

places his feet upon foot pedals 1,6,.gras-ps hand lever 28 andby rocking said-pedals; 16: with the bal lportions of his feet, draws swinging table. Z- forwardly int-a-se mi li-fting movement, and simultaneously thrusts lever 28 forwardly which causes. brake shoe and propeller shoe to roll forwardly within-chan-- mils-*8, of table 7, and by: the depressingimovement of the heel onipedal 16, causes the said? propeller shoe 10,'to; move downwardly until the:- fr-ic-tionstraps- 132,-, engage the surface upon which. said sled operates, and then by:

reason; of the; lateral; or backward pullof the operator on said hand lever 28,, impel thestructure in a forward projected manner. The repeatedrfunctioning of the/device in; the manner: as described together; with? the; tilting of therfoot pedals '16, by; the toe: portion of .the foot; of the operator which; latter resets all of; the actuating mechanism; produces: a5 continued self propelled. sled, and atthe same,

7 time provides, arbrakemechanism for such a;

struoturasinceiifithe operator brings theshoe; 1 .0, forwardly and holdsboth foot pedals, l6,}and lever 28,1'igidly at; apoi-nh wherein said shoe, contacts the ridingsurface pro". vides: a positivefbrake; mechanism, for the; deevice, thuslyproviding; a, sled of? the selfv propelled-type; and Qnethat may be; used? as;

a coaster having factors of safety not found in present day articles of a similar nature.

The device may be altered and changed in many ways and particularly in its mode of operation and means of actuating same, without departing generally from the naturalsaid car'riage, a singlepropel'lershoe mou-ntied in andrslidablefwith relationito, said swing; ingcarriage, haindcontrolleddmeans for actusiting-said propelling shoe,means-arrangedt thrust said propelling shoe-into, contact-with: the riding surface of said-sledbyreason of? the forwardmovement of said swinging can, riage, means for actuating said; propelling shoe when same is; in contact, withgsuch riding; surface; independent of the means for actuating said; ca-rriage,iand; brake means provided by said propel-ling; shoe whenrthe: actuating; means therefore is heldagainstmovement;

2,. A device-f ofthe character described com J prising a;' sled: body, acarriage disposed be; 7 neath' said body arranged for reciprocal; movement with relation thereto, 1 foot pedals;-

mountedon the front end I of said sled, thrust rods, connecting said carriage and saidfoot. pedalsapropel ler shoe mounted infl-sa d carrlages and arranged for: reciprocal movement with relation thereto, ahand actuating lever mounted inpthe body of saidslcdgarleverage means mounted on the underside ofisaid body,

leverage means: connecting" said hand lever andsaidleverage means,u,-rods,-earried by said leverage meansgconnecting; with said; pro? peller shoe, and means whereby when said foot.- pedals: and "handlever; are actuated said; carriage causes said propeller shoe to con tact;the.surfaceonwhichizt rides and byactuatin-g, said hand lever propel said-5 sled cone tinuously in a forward direction.

3. A device ofthecharacfierdescribedeom l V prising a sled body, a carriage disposedb,e'-

heath; said body arranged for reciprocal movement with-relation there-to, foot; pedals mounted on, the front end of said sled,ith-ri-ist rods connecting said carriage-and SEtlGlyfiQOir:

pedals,-a-propeller shoe mounted in saidcarriage and arranged: for; reciproeal movementg with 5 relationthereto, a hand actuating lever rno-unted'in: the body: of rsaidqsled, a: leverage;

means-mountedontheunderside of sai-dbody; leverage means: connectingsaid, handlever;

and said leverage, means, rods; carried by saidjleveragemeansconnectingwith'saidproe peller shoe; means whereby wherr said footi signature. If:

CHARLES SCHUBERT.

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