WO2020008478A1 - Véhicule à direction arrière pliable et portatif - Google Patents

Véhicule à direction arrière pliable et portatif Download PDF

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Publication number
WO2020008478A1
WO2020008478A1 PCT/IN2019/050497 IN2019050497W WO2020008478A1 WO 2020008478 A1 WO2020008478 A1 WO 2020008478A1 IN 2019050497 W IN2019050497 W IN 2019050497W WO 2020008478 A1 WO2020008478 A1 WO 2020008478A1
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WO
WIPO (PCT)
Prior art keywords
foldable
chassis
vehicle
handle
rear steer
Prior art date
Application number
PCT/IN2019/050497
Other languages
English (en)
Inventor
Kartikey GUPTA
Original Assignee
Gupta Kartikey
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 Gupta Kartikey filed Critical Gupta Kartikey
Publication of WO2020008478A1 publication Critical patent/WO2020008478A1/fr

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Classifications

    • 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
    • B62K15/00—Collapsible or foldable cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J50/00—Arrangements specially adapted for use on cycles not provided for in main groups B62J1/00 - B62J45/00
    • B62J50/10—Means for carrying cycles by hand
    • 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
    • B62K21/00—Steering devices
    • B62K21/18—Connections between forks and handlebars or handlebar stems
    • 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
    • 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
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/05—Tricycles characterised by a single rear wheel
    • 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
    • B62K2204/00—Adaptations for driving cycles by electric motor

Definitions

  • This invention relates to a foldable and portable rear steer vehicle.
  • the vehicle can be dragged like a trolley in foldable position rendering the same portable.
  • This vehicle is powered by an engine or electric motor with atleast three wheels.
  • Transportation technology is known to have provided personal transportation vehicle used for transportation of a single person for short distances.
  • US 8830048B2- An apparatus controller for prompting a rider to be positioned on a vehicle in such a manner as to reduce lateral instability due to lateral acceleration of the vehicle.
  • the apparatus has an input for receiving specification from the rider of a desired direction of travel, and indicating means for reflecting to the rider a propitious instantaneous body orientation to enhance stability in the face of lateral acceleration.
  • the indicating may include a handlebar that is pivotable with respect to the vehicle and that is driven in response to vehicle turning.
  • US20130081891A1- An electric skateboard including a deck, a wheel and an electric motor mounted to a drive truck, the wheel rotatably supported by the drive truck and the electric motor configured to drive the wheel, wherein the drive truck is mounted to the deck, a battery mounted to a power truck and configured to power the electric motor, wherein the power truck is mounted to the deck, and a processor configured to control operation of the electric motor.
  • US8738278B- A two-wheel, self-balancing personal vehicle having independently movable foot placement sections.
  • the foot placement sections have an associated wheel, sensor and motor and are independently self-balancing which gives the user independent control over the movement of each platform section by the magnitude and direction of tilt a user induces in a given platform section.
  • Various embodiments are disclosed including those with a continuous housing, discrete platform sections and/or tapering platform sections.
  • the major disadvantages associated with these vehicles are the instability and poor ergonomics, the mass of the user gets distributed between two points which adds to the instability.
  • the instability of these devices has been taken care by introducing a number of sensors which unintentionally boosts the cost and eventually making these vehicles difficult to afford and also decrement in rider’s confidence.
  • These vehicles don’t have handlebar. Hence the rider has no points of contact with any part of the vehicle other than the platform (person keeps his/her foot to stand).
  • the vehicles are capable of remaining balanced in the fore-and-aft plane, the riding stance may be too unsupported and loose for an average person to maintain his/her posture securely and comfortably, as the rider must regulate the position of his/her feet/legs in relation to the vehicle to direct/steer the vehicle. Also, it takes a long period of time to learn to ride them and the safety of the user is also compromised due to their aesthetics.
  • Prior inventions don’t have a mechanism by which they could be dragged like a trolley, user has to carry them as a suitcase which means user has to lift up all its weight vertically while in this invention body is formed in three parts which are hinged together in such a way that by folding them vehicle becomes a trolley which can be dragged easily instead of lifting it.
  • the invention like electric skateboard has a very low ground clearance which makes it very difficult to ride it over even on slightly rough terrains, whereas the ground clearance gives the present invention to be used on rough terrain even.
  • the features which distinguish the present invention from the known vehicles are that the weight of the user is distributed between three points making it stable and easy to use. Secondly, the vehicle is made portable by designing a foldable mechanism for it to be carried out when needed. The safety of the user has been ensured by introducing a dedicated breaking and steering system and rigid elements to safeguard the user during miss happenings. The invention is designed in a way that its front section and steering section provides proper safety to the rider. Finally, a comparatively high ground clearance has been provided keeping in mind the uneven terrain. The invention of proposed application addresses issues of the prior arts in a cost-effective manner.
  • a foldable and portable rear steer vehicle comprises a chassis mounted with a foldable steering system at one end, and other end of said chassis is mounted with a foldable handle and connected to axle mounted with wheels, wherein the vehicle is driven by atleast one powered driven wheel and the chassis is connected to the axle by territorially constraint relative motion means.
  • Said chassis accommodating a battery and is mounted with a controller connected between the battery and electric hub motor placed on steering fork at one end of the chassis.
  • the foldable steering system includes a brake handle hinged to a vertical member rotatably mounted on a base, wherein the base is fixedly secured on the chassis.
  • a rotatable pipe mounting is provided in mesh with said mounting base and is mounted with a fastener including bolt for enabling sliding movement of the vertical member therethrough by providing a slot in the vertical member, in which the bolt rests in the slot.
  • the fastener constituting a lever is connected to another lever on the fork by a connecting member so as to maintain a ratio between the vertical member and steering fork for precision in steering and to enable movement of vehicle in the direction of the steering.
  • the hinge connecting said handle bar to said vertical member is loaded with a tension spring with lock groves, which provides tension to keep the handle bar in the desired position, in which free end of the handle is having brake lever.
  • the chassis is having substantially U-section accommodating the battery in between, which is integrated to a part having substantially triangular section at one end thereof forming a single structure, in which the triangular part supports a charging point for charging battery and caster spring connecting said steering fork.
  • the handle is fitted with a lock, and throttle to control operation of the vehicle.
  • the handle is telescopically fitted in base tubes with the help of folding means including hinge, in which elastically compressible tube is provided inside the tube and between the two tubes and handle so as to stop the play between the pipes and handle and also to provide proper resistance for mounting.
  • the handle is attached to two mesh lock plates facing each other and the chassis is fixedly secured to a stopper at one end on both sides, which together with said mesh lock plates help in locking the foldable vehicle in the form of trolley.
  • the axle mounted with wheels is connected to the chassis by two connecting means, one each side forming four link mechanism to bring roll center at a high position and for territorially constraint relative motion between axle and chassis, wherein the connecting means constitutes an assembly of fastener mounting on axle and chassis respectively with faster and links therebetween.
  • the axle is provided in connection with said chassis with the help of a load spring for territorially constraint relative motion between axle and chassis.
  • axle and chassis are connected by an assembly of base plate, rubber bush and rigid bushing for territorially constraint relative motion between axle and chassis.
  • the foldable and portable rear steer vehicle comprising of foldable front section hingedly connected to middle section forming chassis, which is provided in connection to steering section, wherein the chassis is mounted with the foldable steering section at one end, and other end of said chassis is mounted with a foldable handle and connected to axle mounted with wheels, wherein said chassis support an engine thereunder.
  • the handle supports a brake lever to provide braking control and is attached to a latch.
  • the steering section includes a vertical pipe connected to a handle pipe by a hinge loaded with a tension spring with lock groves to keep the handle pipe in a fixed position, in which the handle pipe is having a lock and throttle at free end thereof.
  • the pipe has a fuel tank and is connected to a pipe with two bearings by a hinge, in which the pipe is fitted to a hook.
  • the hinge has a locking plate by which the pipe can be locked in the vertical position and by rotating plate to the horizontal position, the pipe is folded to the horizontal position, wherein the bearing is placed on a steering fork mounted with a wheel.
  • the chassis may be mounted with a layer of foam constituting a platform.
  • FIG. 1 shows: A perspective side view of steering section in the expanded state, wherein the arrow shows various rotations required to fold steering section.
  • FIG. 1 shows: A perspective side view of steering section in the collapsed state (Front section not shown) according to first embodiment of present invention.
  • FIG. 1 shows: Collapsed side view of the invention in which user is dragging it as a trolley.
  • FIG. 1 shows: Hinge assembly used in collapsed or horizontal position.
  • FIG. 1 shows: Isometric view of foldable and portable rear steer electric vehicle according to second embodiment of present invention.
  • the present invention makes a disclosure regarding a technology pertaining to a foldable and portable rear steer vehicle.
  • FIG. 1 indicating a perspective side view of the invention in an expanded state, ready for the user to ride.
  • 1 is the front section of the vehicle
  • 2 is the middle section of the vehicle
  • 3 is the steering section of the vehicle.
  • Front section (1) is connected to middle section (2) by a hinge (4) which provides a sliding cum rolling joint between the two sections by which section 1 gets an ability to act as a member for taking various loads offered due to riding of vehicle in the expanded position and to act as a handle of a trolley in a collapsed position.
  • a brake lever (19) is mounted on handlebar (20) to provide braking control to the user during riding.
  • the middle section (2) forming chassis provides a support to mount engine (5) there below to power the vehicle.
  • Tube (6) is mounted with two bearing together acts as a support for steering section 3.
  • a hook (7) holds front section (1) in the collapsed position.
  • Axle mounted with wheels (8) is connected to the chassis (2) by pillow block bearings.
  • Platform (9) optionally provided has a layer of foam so that user’s foot will form depressions in it which will provide stability to the user.
  • the steering section 3 is used to steer the vehicle.
  • a rear steering mechanism is used in this invention.
  • Steering section (3) has folding means including two hinges (10 and 11) which helps it to get collapsed into two sections and makes it a compact device and hence increases its portability.
  • Vertical pipe (12) has a fuel tank (13) for providing a head for proper fuel delivery.
  • Pipe (15) connected to vertical pipe (12), wherein the pipe (15) has lock, and throttle accelerator 17 for proper control over engine's rpm.
  • FIG. 2a is a perspective side view of steering section in the expanded state, in which an arrow shows various rotations required to fold steering section and Fig. 2b is a perspective side view of steering section in a collapsed state (Front section not shown).
  • Hinge (10) is loaded with a spring between both pipes (12, 15) which keeps it fixed in a fix position which helps the user to steer as the weight of pipe (15) always leads to change its position.
  • Hinge (11) has a locking plate (14) by which user can lock pipe (12) in the vertical position and by rotating plate (14) user can fold it to the horizontal position. Together hinge (10) and (11) makes such a combination that whole steering section can be collapsed over the platform (9).
  • FIG 3 A first stage of collapsing front section in which it is to be lifted upward.
  • Front section (1) in vertical position takes all loads offered by the rider as the rider holds it for taking all reactions to the forces induced due to riding.
  • Hinge (4) provides rigid joint in the vertical position while in the horizontal position it provides a rotatable and slideable joint. The rotation and sliding of front section (1) in the horizontal position are blocked by a hook and latch pair (7 and 18).
  • Hinge (4) has track (21) and slide rail (22). Track (21) is mounted on middle section (2) and rail (22) is mounted on front section (1). The rail (22) has slot (23) which meshes with the bolt (24) which is mounted on middle section (2).
  • FIG 3b is stage two of revolving front section in the clockwise direction.
  • front section (1) is pulled up rail (22) (both sides slide rack) is lifted upward, rail (22) de meshes with track (21) but the slot (23) is in mesh with bolt (24) which stops it from further upward movement but front section (1) can rotate about bolt (24).
  • FIG 3c is stage three of pushing back front section for the meshing of latch and hook.
  • Front section (1) rotates about bolt (24) and its orientation is changed from horizontal to vertical.
  • Bolt (24) is in mesh with slot (23) in a way that rail (22) could slide along the length of slot (23), then front section (1) is pressed downward (foam layer on 9 get compressed) after that pushed backward under the hook.
  • the hook (7) meshes with the latch (18) (foam layer provides a necessary reaction force to keep them in mesh). This provides the user a firm handle to drag. This arrangement gives the ability to the user to use it as trolley whenever needed.
  • FIG 4. The user is dragging it as a trolley in the collapsed position by using front section (1) as a handle.
  • the wheels on axle (8) is used for both purposes to drive invention as a trolley in the collapsed position and to use it as a vehicle in expanded position.
  • the steering section is rotated about tube (6) so the wheel (16) comes in inward direction then pipe (12 and 15) are collapsed about hinge (10 and 11) to make section compact leaning over the platform (9).
  • front section (1) is lifted upward and is rotated towards steering section (3) then it is pressed and pushed backward to make latch (18) under the hook (7). Thereafter foams reaction force keeps them in a mesh and driver drags it along by holding handlebar (20).
  • the hinge used in the present invention is illustrated in fig. 5a and 5b.
  • the hinge is in collapsed or horizontal position.
  • the hinge used has a pipe (301) with slot (302) and another pipe (303) with slightly bigger diameter has two extended plates (304) which houses a bolt (305) that meshes with that two slots (302).
  • To expand it user lifts and rotates pipe (303).
  • Pipe (303) comes from the horizontal position to vertical position, the pipe (303) is pushed downwards to mesh with pipe (301).
  • FIG. 5b is expanded or vertical position of hinge assembly ready to take various loads.
  • the dotted lines show the meshed portion covered by another part.
  • the pipe (303) is in mesh with pipe (301) restricting bending movement due to various forces applied by the user and the bolt and slot (305 and 302) restrict torsional movement due to steering torque.
  • an electric rear steer vehicle which is also foldable and portable.
  • This electric vehicle comprises a chassis (100) having substantially U-section accommodating a battery (101) in between. Further, a controller (Not shown) is mounted on the bottom of said chassis in order to hide the same for aesthetic purpose. However, the controller can be mounted on any other part of the chassis. Said controller is connected between the battery (101) and electric hub motor (102) mounted on steering fork (103).
  • the steering fork (103) is secured to the chassis (100) by an assembly of bearings (104) therebetween for rotating the fork about its axis.
  • the steering fork (103) is positioned in the rear of the vehicle.
  • the steering system (200) includes a brake handle (105) hinged to a vertical member (106). Said vertical member (106) is rotatably mounted on a base (107), wherein the base (107) is fixedly secured on the chassis.
  • a rotatable pipe mounting (107A) is provided in mesh with said mounting base (107) and is mounted with a fastener including bolt (108) as in Fig. 7 for enabling sliding movement of the vertical member (106) there through by providing a slot in the vertical member.
  • the fastener constituting a lever (108) is connected to another lever (109) on the fork by means of a connecting member (110) as illustrated in the figure. 7.
  • a ratio between the vertical member (106) and steering fork is maintained for precision in steering by means of the levers (108, 109) and connecting member (110). This also enables movement of vehicle in the direction of the steering.
  • a tension spring with lock groves (111) is positioned between the vertical member (106) and brake handle (105).
  • the hinge connecting said handle (105) to said vertical member (106) is loaded with said tension spring with lock groves (111).
  • the spring provides tension to keep the handle in the desired position.
  • the free end of the handle is having brake lever (105A).
  • the part (113) can be called as end part is adjacent to the steering fork.
  • the end part (113) supports a charging point (114) for charging of battery.
  • caster spring (112) located between the end part (113) of chassis and fork (103) as seen in the figure for restoring the straight line position of vehicle.
  • the chassis is mounted with handle (115) as in Fig. 6 in the front at one end with the help of folding means.
  • the handle is having a substantially U-section in this particular embodiment without restricting scope of the invention to the same.
  • the handle can take any other shape such as L-section.
  • Said handle (115) is fitted with a lock, and throttle (116) on top thereof for convenience in operation. The throttle controls operation of the vehicle.
  • This handle is telescopically fitted in base tubes (117) with the help of folding means including hinge.
  • Elastically compressible tube (117A) is provided inside the tubes (117) and comes between the two tubes (117) and handle (115) so as to stop the play between the pipes and handle and also to provide proper resistance for mounting.
  • hinge connection is provided between the handle (115) and tubes (117) and also between the vertical member (106) and the pipe mounting (107A).
  • each of the tubes (117) is mounted with a fastener including a bolt (108), which rests in the slot (S) provided in the handle (115) as in Fig. 8. So that the handle can slide in the vertical direction. This helps in folding of the handle and steering system of vehicle in the form of a trolley.
  • the handle (115) is attached to two mesh lock plates (118) facing each other as in Fig. 9 which is used for locking in particular position with chassis while folding.
  • the handle acts as a guard for safety of user in case of any collision.
  • the chassis is fixedly secured to a stopper (T) at one end on both sides, which together with said mesh lock plates (118) help in locking the folded vehicle in the form of trolley as best seen in Fig. 9.
  • the axle is connected to chassis by two connecting means, one on each side forming four link mechanism to bring roll center (C’, Fig. 10) at a high position leading to low centrifugal moment thereby enhancing stability of the vehicle.
  • the connecting means are mounted on axle at an inclination for territorially constraint relative motion between axle and chassis in the front. High roll center reduces the centrifugal moment thus increment in stability.
  • the connecting means constitutes an assembly of fastener mounting (F1, F2) on axle and chassis respectively with faster (R) and links (L) therebetween.
  • axle (119) is provided in connection with said chassis (100) with the help of a load spring (120).
  • axle (119) and chassis (100) are connected by an assembly of base plate (121), rubber bush (122) and rigid bushing (123).
  • Ref Fig 9 chassis has two triangular sections wherein the handle (115) is slided in such a way that mesh lock plates (118) slides under stopper (T), after that (116) is lifted upward causing (118) to mesh and restricts its movement due to chassis triangular sections and stopper (T) stops the forward movement of handle (115) thus helps vehicle to act as trolley.
  • the caster spring (112) helps in restoring back the position of steering which gives vehicle straight line stability, whenever steering is turned spring stretches and tries to restore original position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Cycles, And Cycles In General (AREA)

Abstract

L'invention a pour objectif fondamental de minimiser l'effort humain et éventuellement le temps nécessaire pour couvrir des distances courtes. L'invention réalise à cet effet un véhicule qui comprend au moins trois roues, un mécanisme de direction arrière et un système de freinage.L'utilisateur peut le plier et le transporter comme un chariot chaque fois que cela est nécessaire et peut l'utiliser comme véhicule en le dépliant. La section avant (115) et la section de direction (200) sont reliées à la section intermédiaire (100, 113) par des charnières de sorte qu'elles peuvent être repliées à chaque fois que cela est nécessaire. Le véhicule replié forme un chariot dans lequel la section avant sert de poignée (115) pour le chariot. L'utilisateur se tient debout sur la section intermédiaire (100) pour tenir la section avant (115) d'une main et pour tenir la section de direction (200) de l'autre main afin de diriger le véhicule. Le véhicule utilise une source d'alimentation externe qui pourrait être un moteur ou une batterie et un moteur.
PCT/IN2019/050497 2018-07-04 2019-07-04 Véhicule à direction arrière pliable et portatif WO2020008478A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201811024852 2018-07-04
IN201811024852 2018-07-04

Publications (1)

Publication Number Publication Date
WO2020008478A1 true WO2020008478A1 (fr) 2020-01-09

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Application Number Title Priority Date Filing Date
PCT/IN2019/050497 WO2020008478A1 (fr) 2018-07-04 2019-07-04 Véhicule à direction arrière pliable et portatif

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998046474A2 (fr) * 1997-04-15 1998-10-22 Empower Corporation Trottinette portable
CN103796910A (zh) * 2010-07-07 2014-05-14 劳欧·帕瑞堤 轻便式可折叠电动马达三轮车
CN108068958A (zh) * 2016-11-18 2018-05-25 童红灯 一种新型电动折叠三轮滑板车

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998046474A2 (fr) * 1997-04-15 1998-10-22 Empower Corporation Trottinette portable
CN103796910A (zh) * 2010-07-07 2014-05-14 劳欧·帕瑞堤 轻便式可折叠电动马达三轮车
CN108068958A (zh) * 2016-11-18 2018-05-25 童红灯 一种新型电动折叠三轮滑板车

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