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WO2007043035A1 - Trottinette actionnée par le poids du corps - Google Patents

Trottinette actionnée par le poids du corps Download PDF

Info

Publication number
WO2007043035A1
WO2007043035A1 PCT/IL2005/001082 IL2005001082W WO2007043035A1 WO 2007043035 A1 WO2007043035 A1 WO 2007043035A1 IL 2005001082 W IL2005001082 W IL 2005001082W WO 2007043035 A1 WO2007043035 A1 WO 2007043035A1
Authority
WO
WIPO (PCT)
Prior art keywords
scooter
foot
drive
wheel
frame
Prior art date
Application number
PCT/IL2005/001082
Other languages
English (en)
Inventor
Yair Tal
Original Assignee
Yair Tal
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yair Tal filed Critical Yair Tal
Priority to PCT/IL2005/001082 priority Critical patent/WO2007043035A1/fr
Publication of WO2007043035A1 publication Critical patent/WO2007043035A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M1/00—Rider propulsion of wheeled vehicles
    • B62M1/24—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers
    • B62M1/28—Rider propulsion of wheeled vehicles with reciprocating levers, e.g. foot levers characterised by the use of flexible drive members, e.g. chains
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/12—Roller skates; Skate-boards with driving mechanisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
    • B62K3/00—Bicycles
    • B62K3/002—Bicycles without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C17/00—Roller skates; Skate-boards
    • A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
    • A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type

Definitions

  • the present invention relates generally to scooters, and more particularly to a body weight-activated scooter utilizing the principle of an overrunning clutch drive for generating forward motion.
  • a body weight-activated scooter having at least one front wheel and at least one rear wheel attached on a frame
  • the scooter comprising. at least one foot-rest pivotally attached at its forward portion to a fixed point on the frame and fixedly attached at its heelward portion to one end of a linking means so that a heelward portion of the at least one foot-rest is free to pivot up and down, and at least one drive train mounted on the frame for operation of the scooter, the at least one drive train comprising: at least one weight-vector wheel for controlled timing of forward motion of the scooter, and at least one overrunning clutch-drive connected to the at least one weight-vector wheel, the at least one overrunning clutch-drive providing sustained forward thrust, wherein when the at least one foot-rest is depressed by the body-weight force of a rider, the at least one drive train is activated via the linking means to produce the forward motion, the at least one overrunning clutch-drive being mechanically connected to the at
  • the scooter of the present invention in a preferred embodiment thereof, is operated by the weight of the body through small, controlled, foot movements, either individually or together, which, when applied to at least one foot-rest or foot-supporting belt, moves the scooter forward.
  • the scooter exploits the weight of the body while “walking” in place to generate a forward motion.
  • the scooter coasts freely.
  • the scooter is especially suited for use on flat, paved areas, such as city streets, sidewalks, broad plazas, and shopping and recreational centers since it is not motorized.
  • one side of a link-chain is connected to the heel portion of a foot-rest or foot-supporting belt; the second side of the link-chain is connected to an overrunning clutch, which operates at least one rear-drive wheel.
  • the purpose of the overrunning clutch is to operate the drive-train which is automatically engaged in one direction, but freewheels in the other.
  • a return spring returns the link-chain to its initial starting position.
  • a V-belt is used in place of a link-chain to operate the overrunning clutch.
  • the tightness of the V-belt or link-chain allows a twofold pull and consequent saving of energy in the propulsion of the scooter. This allows for a higher speed of operation and reduced weight of the frame.
  • the foot-rests are provided with skid- proof surfaces for greater traction.
  • lighter-weight foot-supporting belts are provided instead of foot-rests for operating the scooter and resting the feet.
  • the system of the invention is adaptable for application in a four-wheeled chassis having two drive-wheels for the convenience of adults and people with physical limitations. It can also be used as a sports or recreational vehicle having two wheels, mounted at opposing ends of the dual foot-rest, one of which is a drive fitted with two overrunning clutches mounted one on each side of the drive-wheel and the other a freely-turning wheel to provide steering.
  • the device fits under a foot much like a skate shoe with an open heel. With the aid of intermediate wheels one can align a linking means, such as a link-chain above and behind the heels of the feet.
  • the invention is adaptable to accommodate add-ons to assist easy and correct movement of a link-chain in a number of ways, such as the addition of an idler wheel to reduce slack in the link-chain.
  • Other add-ons such as front and rear lights, warning lights and alarms, a speedometer, and an odometer are easily fitted to the scooter of the invention.
  • small, relatively quiet, electric drives or motors can be added, for example, to automatically and more comfortably adjust the height of either the handlebars or the weight- vector wheels for different users and for different applications of the scooter of the invention
  • the scooter is constructed of a relatively lightweight material, such as plastic, aluminum, leather, and any similar lightweight structural material so it is convenient to use and saves exertion effort of a user.
  • the stepping action can be extended or shortened as needed by changing the height of the weight-vector wheel in relation to the ground and thus optimizing the placement of the body weight for maximizing either the power or speed of the scooter.
  • the low center of gravity of the scooter provides for greater stability and control for users.
  • the scooter is intended for smooth, flat surfaces which will help people who have walking difficulties; only a small lifting of the heel of the foot is sufficient to create a driving "pulse".
  • the device of the invention being simple in design, does not require a motor and is therefore relatively inexpensive to produce. It is also quiet in operation and pollution-free to the environment.
  • the key element of locomotion is the requirement that the pushing vector is optimized in relation to the gravitational vector so as to utilize the lowest center of gravity.
  • the power of the foot pressure is applied as close as possible to the pressure vector. In a sports model embodiment of the invention, the pressing cycle is longer than in other applications.
  • the present invention in a preferred embodiment thereof, optimizes the placement of the foot-rest close to the ground, thus providing the added advantage that it is easier for elderly users to alight or mount the scooter.
  • Fig. 1 is a schematic drawing of the initial stage of operation of components of the power train system of the invention in a preferred embodiment thereof;
  • Fig. 2 is a schematic drawing of the return stage of operation of the power train system from Fig. 1 ;
  • Fig. 3 is a top, schematic view of the layout, in accordance with a preferred embodiment of the invention, of the major components of a two-wheeled scooter adapted for sport users;
  • Fig. 4 is an exploded, detailed view of the embodiment of the two-wheeled scooter of Fig. 3;
  • Fig. 5 is top, schematic view of the layout, in accordance with another embodiment of the invention, of the major components of a four-wheeled scooter suitable for adult and recreational use;
  • Fig. 6 is an exploded, diagrammatic view of the embodiment of the four-wheeled scooter of Fig. 5;
  • Figs. 7a and 7b are side views illustrating the initial and return stages, respectively, in the operation of yet another embodiment of the invention.
  • Fig. 1 is a schematic drawing of the initial stage of operation of components of the power train system of the invention in a preferred embodiment thereof. Since Fig. 1 is intended to illustrate only the power train system of the invention, the wheels, frame, and steering mechanisms of a scooter, which are known to those skilled in the art, are not shown (see Fig. 4).
  • linking means 12 such as a bicycle-type link-chain or, alternatively, a V- belt
  • a linking means 12 is attached at a node 16 to a foot-rest 18 which is rotatably attached at a forward node 28 of foot-rest 18, such as by a hinge, so that the heelward portion of foot-rest 18 near node 16 is free to move up and down with the corresponding movement of link-chain 12.
  • linking means 12 is hereinafter referred to as link-chain 12.
  • Link-chain 12 is linked to a weight-vector wheel 14 disposed above foot-rest 18, then passes around and connects to an overrunning clutch 10, and finally is secured at node 20 to return spring 22 which itself is fixedly connected at node 24 to a scooter frame (not shown).
  • Forward node 28 is also mechanically connected to another part of the same frame.
  • An overrunning clutch will automatically engage in one direction, but will freewheel in the other.
  • the overrunning clutch 10 is of the roller bearing type.
  • the general symbols 9 represent a sampling of one of a number of roller bearings and ramps which are housed in an inner hub of overrunning clutch 10 and which allow movement of the roller bearings in only one direction (up the ramp), but acts as a stop in the other direction causing the clutch to freewheel.
  • Body-weight force of a user operates the power train system of the invention to produce forward motion.
  • Stepping action on foot-rest 18 creates "pulses" which rotate overrunning clutch 10 and moves link-chain 12, as shown in Fig. 1 by arrows.
  • the drive pulse is transmitted to at least one rear-drive wheel, indicated by the common axle 21 , when an incremental downward movement of the heel of a rider standing on at least one foot-rest 18 exerts foot pressure on the drive train.
  • a downward pressure at the heel of shoe 26 on foot-rest 18 causes link-chain 12 to also move downward and counterclockwise (arrow Ql) around weight-vector wheel 14 thus rotating (arrow Rl) overrunning clutch 10 and providing thrust to at least one rear-drive wheel (not shown) attached to it through the common axle 21 , providing a forward motion to propel the scooter.
  • Fig. 2 is a schematic drawing of the return stage of operation of the power train system shown in Fig. 1.
  • Overrunning clutch 10 is forced by the tension of return spring 22 to freewheel in a reverse, clockwise direction R2, thus returning return spring 22 to a state of rest while not producing any forward motion.
  • Link-chain 12 is drawn upward (as indicated by arrow P2) at node 16 to wind clockwise (arrow Q2) around weight-vector wheel 14, thus lifting the heel ward portion of foot-rest 18 upward into a ready position for another cycle of operation of the power train.
  • Fig. 3 is a top, schematic view of the layout of the major components of a two-wheeled scooter adapted for sport users and constructed in accordance with a preferred embodiment of the invention.
  • the scooter 37 is shown in a schematic type view without reference to a frame or steering means to emphasize the inventive features.
  • One rear-drive wheel 30 is disposed on the same axle, represented by center line 21, as a pair of overrunning clutches 10 which are mounted on both sides of rear wheel 30 and linked by link-chain 12 to a pair of weight-vector wheels 14 mounted on a common axis 15 supported by a vertical frame shaft (not shown) above twin foot-rests 18.
  • a steerable front wheel 32 is shown in Fig. 3 only for reference purposes in relation to the other described features in the layout of the invention.
  • Fig. 4 is an exploded, detailed view of the embodiment of the two-wheeled scooter of Fig. 3.
  • the scooter 37 is guided by handlebars 34 and turning post 36 connected by a height adjustment shaft 38 to front wheel 32.
  • a tightening means 40 is provided to hold the handlebars 34 at a designated height suitable for the user.
  • the entire steering mechanism 36, from handlebars 34 to front wheel 32 can be disassembled as shown in Fig. 4 for convenient storage of the scooter using standard mechanical fasteners, such as are well-known to those skilled in the art. Dot-and- dash lines are used to indicate re-assembly points and directions for attachment of the various components shown.
  • a T-bar 44 is connected to the scooter frame 46 via a vertical frame shaft 45 which can be varied in height to provide for differences in body-weight vector forces and optimize scooter performance by altering the center of gravity in relation to the body weight of a user.
  • the weight-vector wheels 14 are mounted on either side of T-bar 44 and linked by link-chain 12 to their respective overrunning clutches 10 disposed on the outer sides of rear drive-wheel 30.
  • Fig. 5 is top, schematic view of the layout, in accordance with another embodiment of the invention, of the major components of a four-wheeled scooter suitable for adult and recreational use. (Additional features and further details are shown in Fig. 6.)
  • the four-wheeled scooter 39 is provided with two overrunning clutches 10, which are mounted on a common axle 29 with two fixed rear-drive wheels 30 to which they are mechanically connected.
  • a pair of linking means, such as link-chains 12 are fixedly connected at nodes 16 to respective foot-platforms 18 and engage a pair of weight- vector wheels 14, which are mounted on a supporting frame structure (not shown) above each respective foot-rest 18 and further linked to corresponding overrunning clutches 10.
  • return tension means such as tension springs (not shown) which are anchored in the underside of the frame (not shown) of scooter 39.
  • the principle of operation of scooter 39 is as shown in Figs. 1 and 2 and described hereinbefore.
  • Two, steerable front wheels 32 for steering are controlled by handlebars 34 attached to a steering means 42 (see Fig. 6).
  • Fig. 6 is an exploded, detailed view of the embodiment of the four-wheeled scooter of Fig. 5.
  • scooter 39 operates similarly to the embodiment of the invention of Figs. 3 and 4 except for the distinctive feature of additional wheels and a more sophisticated steering mechanism 42, including a turn-bar mechanism 48 as is known to those skilled in the art for operating both front wheels 32 in tandem when making a turn with scooter 39.
  • the weight-vector wheels 14 are aligned above their respective rear-drive wheels 30 so that each, respective link-chain 12 is linked without slack around their respective overrunning clutches 10 to apply maximum torque to rear-drive wheels 30 when scooter 39 is operated. Due to the exploded view shown in Fig.
  • the two link-chains 12 are not shown in full, but only partially shown at their respective ends where they are fixed at nodes 16 and 20 and arrows A-A and B-B indicate general continuations from end to end.
  • a full, detailed layout of the link-chain connections is as shown in Figs. 1 and 2 for each rear-drive wheel 30.
  • Figs. 7a and 7b are side views illustrating the initial and return stages, respectively, in the operation of yet another embodiment of the invention.
  • the overrunning clutch principle is applied to a self-propelled roller-skate type device 35 attached by a foot strap 50 to each shoe 26 of a user.
  • a shoe-like platform is an oversized, fixed feature which conveniently accommodates and holds a variety of user shoe sizes.
  • the foot of the user is strapped tightly to a shoe platform 54 or, alternatively, to a wide, foot-supporting belt (not shown) which replaces platform 54.
  • the belt embodiment of the invention is provided with a small-diameter rod or wheel disposed at the heel end of shoe 26 to maintain tension in the belt and control slack.
  • a rigid structure 56 both supports weight-vector wheel 14 disposed at an optimal height above shoe platform 54 to maximize body-weight force and provides a frame for the roller-skate type device 35.
  • Rigid structure 56 is made of rigid plastic although other suitable materials may be used. Notice the cutaway view of rigid structure 56 in Fig. 7a which shows a metal support 58 embedded in the frame to provide greater safety and strength.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Motorcycle And Bicycle Frame (AREA)

Abstract

Trottinette actionnée par le poids du corps fonctionnant sous l'effet du poids du corps à travers de petits mouvements contrôlés du pied. La trottinette (37) a au moins une roue avant (32) et au moins une roue arrière (30) fixées sur un châssis, avec un repose-pied (18) fixé de façon à pouvoir pivoter en sa partie avant à un point fixe sur le châssis attaché de façon fixe en sa partie arrière à une extrémité d'une tringlerie (12) de sorte que la partie arrière du repose-pied est libre de pivoter vers le haut et vers le bas. La trottinette (37) comporte une transmission montée sur le châssis et comprenant un volant d'inertie (14) relié à une transmission à roue libre (10) qui est reliée mécaniquement à la roue arrière (30), la transmission à roue libre (10) fournissant une poussée vers l'avant soutenue quand on appuie sur le repose-pied (18), actionnant ainsi la transmission par l'intermédiaire de la tringlerie (12) pour engendrer un mouvement vers l'avant. La tringlerie (12) est solidement fixée en son autre extrémité à des moyens de ressort de rappel fixés au châssis, ce qui permet un fonctionnement répétitif et continu de la trottinette.
PCT/IL2005/001082 2005-10-11 2005-10-11 Trottinette actionnée par le poids du corps WO2007043035A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IL2005/001082 WO2007043035A1 (fr) 2005-10-11 2005-10-11 Trottinette actionnée par le poids du corps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IL2005/001082 WO2007043035A1 (fr) 2005-10-11 2005-10-11 Trottinette actionnée par le poids du corps

Publications (1)

Publication Number Publication Date
WO2007043035A1 true WO2007043035A1 (fr) 2007-04-19

Family

ID=37942361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IL2005/001082 WO2007043035A1 (fr) 2005-10-11 2005-10-11 Trottinette actionnée par le poids du corps

Country Status (1)

Country Link
WO (1) WO2007043035A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITPN20120009A1 (it) * 2012-02-10 2013-08-11 Mart S R L Triciclo
EP2193068B1 (fr) * 2008-09-01 2016-01-27 Streetstepper GmbH Mécanisme d'entraînement pour véhicule en mesure d'être propulsé par une force musculaire, et véhicule

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828284A (en) * 1987-06-01 1989-05-09 Sandgren John A Treadle cycle
US5368321A (en) * 1993-08-11 1994-11-29 Allan Douglas Dual-footboard low-profile exercise cycle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4828284A (en) * 1987-06-01 1989-05-09 Sandgren John A Treadle cycle
US5368321A (en) * 1993-08-11 1994-11-29 Allan Douglas Dual-footboard low-profile exercise cycle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2193068B1 (fr) * 2008-09-01 2016-01-27 Streetstepper GmbH Mécanisme d'entraînement pour véhicule en mesure d'être propulsé par une force musculaire, et véhicule
ITPN20120009A1 (it) * 2012-02-10 2013-08-11 Mart S R L Triciclo

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