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WO2019167078A1 - Système de direction de couple accouplé sur la base d'un train d'engrenages à pignon conique pour tricycles à moteur inversés - Google Patents

Système de direction de couple accouplé sur la base d'un train d'engrenages à pignon conique pour tricycles à moteur inversés Download PDF

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Publication number
WO2019167078A1
WO2019167078A1 PCT/IN2019/050170 IN2019050170W WO2019167078A1 WO 2019167078 A1 WO2019167078 A1 WO 2019167078A1 IN 2019050170 W IN2019050170 W IN 2019050170W WO 2019167078 A1 WO2019167078 A1 WO 2019167078A1
Authority
WO
WIPO (PCT)
Prior art keywords
bevel
pinion
central
gear set
rod
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/IN2019/050170
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English (en)
Inventor
Ravi Shankar Gautam
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Individual
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Individual
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 Individual filed Critical Individual
Publication of WO2019167078A1 publication Critical patent/WO2019167078A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • 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
    • 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
    • B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
    • B62K5/02—Tricycles
    • B62K5/027—Motorcycles with three wheels
    • 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
    • B62K5/08—Cycles with handlebars, equipped with three or more main road wheels with steering devices acting on two or more wheels

Definitions

  • Steering mechanism of reverse trike or four wheelers have externally moving parts in the form of steer transmission rods. It may be huge disadvantage in case of uneven land mass caused during snow fall.
  • Rotation motion is converted into translational motion which is then converted back to rotation.
  • Non-tilting steering mechanism in Newton reverse trike applies the steering torque on the two wheels either from the front side of the head tube or rear side of the head tube due to which force gets exerted on the head tube rearward or forward direction respectively, thus making it difficult to operate as compared to steering system for a bicycle.
  • steering torque applied on the wheel is symmetric along the head tube.
  • One of our objective is to provide steering system for reverse trike which is as ergonomic to operate as that of a bicycle.
  • steering system for reverse trike is designed such that two front wheels can be transversely rotated using coupled torque.
  • Steering torque is applied on each of the front wheels symmetrically on both ends of the axle and symmetrically on front and rear side of the steerer rods, thereby providing easy and stable maneuverability to the steering system.
  • Head tube is proportional to the length of steerer rod to provide sturdiness to steerer rod.
  • Wheels can be turned by 360 degree.
  • FIG. 7 [Fig. 8] Top and bottom view of central, left and right bevel-pinion gearset used as in steering mechanism according to this invention.
  • FIG. 9 Central, left and right wormface gearset used as in steering mechanism without head tube arms according to this invention.
  • bevel-pinion gear set based coupled torque steering system for reverse trike (1) with top tube (TT) and down tube (DT), comprises central steering system (CSS), left wheel steering system (LSS), right wheel steering system (RSS), steer transmission mechanism (STM), steering support mechanism (SSM).
  • CSS central steering system
  • LSS left wheel steering system
  • RLS right wheel steering system
  • STM steer transmission mechanism
  • SSM steering support mechanism
  • central steering system (CSS) consists of central
  • CST steering shaft
  • CHT central head tube
  • CTC central tubular cage
  • central steering shaft is a straight shaft
  • central head tube is a set of two sections of vertical tubes, upper section (CHT1) and lower section (CHT2) separated by distance equal to the height of central gear set with each section coaxially holding the central steering shaft using ball bearings and upper section on its rear attached to top tube (TT) and lower section attached on its rear side to down tube (DT).
  • central gear set consists of two coaxially parallel horizontal bevel gears (CBG1) and (CBG2) coaxially mounted on the central steering shaft, a pinion bevel gear (CPB1) on the front, a pinion bevel gear (CPB2) on the rear, a pinion bevel gear (CPB3) on the left and a pinion bevel gear (CPB4) on the right side of the steering shaft with each pinion bevel gear having axis perpendicular to the axis of steering shaft.
  • bottom bevel gear (CBG2) is coaxially mounted on steering shaft via ball bearing so that it is free to rotate.
  • Top bevel gear (CBG1) is coaxially fixedly connected to the central steering shaft. As shown in [Fig. 3], [Fig. 5] and [Fig. 7], axis of each of the pinion bevel gears is perpendicular to that of central steering shaft. Pinion bevel gears (CPB1), (CPB2), (CPB3) and (CPB4) are meshingly engaged with bottom bevel gear and top bevel gear.
  • central tubular cage (CTC) consists of two C-shaped rods and four L-shaped rods, surrounding central gear set, with one C-shaped rod on the front side of central gear set with its upper and lower ends connected to upper section (CHT1) and lower section (CHT2), respectively, of central head tube; one C-shaped rod on the rear side of central gear set with its upper and lower ends connected to upper section (CHT1) and lower section (CHT2), respectively, of central head tube; one L-shaped on upper right side of central gear set with its ends connected to right steer arm of steer transmission mechanism and upper section (CHT1) of central head tube; one L-shaped rod lower right side of central gear set with its ends connected to right steer arm of steer transmission mechanism and lower section (CHT2) of central head tube; one L-shaped upper left side of central gear set with its ends connected to left steer arm of steer transmission mechanism and upper section (CHT1) of central head tube; and one L- shaped rod on lower left side of central gear set with its ends connected to left steer arm of steer transmission mechanism and upper section (C
  • pinion bevel gears on front and rear side (CPB1) and (CPB2) are coaxially connected at their outer side to horizontal rods extending from the central tubular cage via ball bearings (CBB1) and (CBB2) respectively.
  • Central pinion bevel gears (CPB3) and (CPB4) are held in place by steer transmission mechanism (STM).
  • left wheel steering system consists of a wheel (LW), left steering fork (LSF), left head tube (LHT), left gear set and left tubular cage (LTC).
  • left wheel steering fork is a rigid/ suspension fork with steerer rod (LSR) with fork blades at their ends holding the wheel (LW) at the ends of its axle.
  • LSR steerer rod
  • LHT Left head tube
  • LHT1 upper section
  • LHT2 lower section
  • left gear set consists of two coaxially
  • LBG1 and LBG2 coaxially connected to left steering shaft, a pinion bevel gear (LPB1) on the front, a pinion bevel gear (LPB2) on the rear, a pinion bevel gear (LPB3) on the left and a pinion bevel gear (LPB4) on the right side of the left wheel steerer rod with each pinion bevel gear having axis perpendicular to the axis of steering shaft.
  • bottom bevel gear (LBG2) is fixedly connected to the left wheel steerer rod (LSR) and top bevel gear (LBG1) is coaxially mounted on left wheel steerer rod (LSR) via ball bearing so that it is free to rotate.
  • axis of each of the pinion bevel gears is perpendicular to that of left steerer rod (LSR).
  • LSR left steerer rod
  • Each of pinion bevel gears (LPB1) (LPB2) (LPB3) and (LPB4) is engaged with top and bottom bevel gear.
  • left tubular cage (LTC) consists of three C-shaped rods and two L-shaped rods, surrounding left wheel gear set, with one C-shaped rod on the front side of central gear set with its upper and lower ends connected to upper section (LHT1) and lower section (LHT2), respectively, of left wheel head tube; one C-shaped rod on the rear side of left wheel gear set with its upper and lower ends connected to upper section (LHT1) and lower section (LHT2), respectively, of left wheel head tube; one C-shaped rod on the left side of left wheel gear set with its upper and lower ends connected to upper section (LHT1) and lower section (LHT2), respectively, of left wheel head tube; one L-shaped on upper right side of left wheel gear set with its ends connected to right steer arm of steer transmission mechanism and upper section (LHT1) of left wheel head tube; one L-shaped rod lower right side of left wheel gear set with its ends connected to right steer arm of steer transmission mechanism and lower section (LHT2) of left wheel head tube
  • left pinion bevel gears on front, rear side and left side are coaxially connected at their outer side to horizontal rods extending from the central tubular cage via ball bearings (LBB1),
  • LBB2 and LBB3 respectively.
  • LBB2 and LBB3 respectively.
  • LBB2 and LBB4 are held in place by steer transmission mechanism (STM).
  • right wheel steering system consists of a wheel (RW), left steering fork (RSF), left head tube (RHT), right gear set (RGS) and right tubular cage (RTC).
  • right steering fork is a rigid/ suspension fork with steerer rod (RSR) with fork blades at their ends holding the wheel (RW) at the ends of its axle.
  • right head tube is a set of two sections of
  • right gear set consists of two coaxially parallel bevel gears (RBG1) and (RBG2) coaxially connected to right steering shaft, a pinion bevel gear (RPB1) on the front, a pinion bevel gear (RPB2) on the rear, a pinion bevel gear (RPB3) on the left and a pinion bevel gear (RPB4) on the right side of the right wheel steerer rod with each pinion bevel gear having axis perpendicular to the axis of steering shaft.
  • bottom bevel gear (RBG2) is fixedly connected to the right wheel steerer rod (RSR) and top bevel gear (RBG1) is coaxially mounted on right wheel steerer rod (RSR) via ball bearing so that it is free to rotate.
  • axis of each of the pinion bevel gears is perpendicular to that of right steerer rod (RSR).
  • RSR right steerer rod
  • Each of pinion bevel gears (RPB1) (RPB2) (RPB3) and (RPB4) is engaged with top and bottom bevel gear.
  • RTC right tubular cage
  • right pinion bevel gears on front, rear side and right side (RPB1), (RPB2) and (RPB4) are coaxially connected at their outer side to horizontal rods extending from the central tubular cage via ball bearings (RBB1),
  • RTB2 Right pinion bevel gears (RPB3) are held in place by steer transmission mechanism (STM).
  • STM steer transmission mechanism
  • Steer Transmission Mechanism [37] Central steering system is coupled with left wheel steering system and right wheel steering system via steer transmission mechanism (STM).
  • Steer transmission mechanism (STM) consists of two transverse straight shafts, one (TS1) on right side coaxially connecting bevel pinion gears (CPB3) and (LPB4), and one (TS2) on left side coaxially connecting bevel pinion gears (CPB4) and (RPB3), of the central gear set with transverse shaft (TS1) and (TS2) coaxially encased in head tube arms (TH1) and (TH2) respectively via ball bearings.
  • Head tube arms on the left side and right side are connected at their rear side to top tube via rods left top tube arm (LTTA) and right top tube arm (RTTA) respectively.
  • handle causes bevel gear (CBG1) to rotate clockwise direction which in turn causes all the central pinion gears to rotate with the central pinion bevel gears (CPB3) rotating in direction opposite to that of (CPB4).
  • Rotation of (CPB3) causes to rotate left wheel pinion gears (LPB4) respectively via transmission shafts which in turn causes left wheel bottom bevel gear (LBG2) to rotate in clockwise direction and thus steer left wheel in clockwise direction.
  • rotation of (CPB4) causes to rotate right wheel pinion gears (RPB3) respectively via transmission shafts which in turn causes right wheel bottom bevel gear (RBG2) to rotate in clockwise direction and thus steer right wheel in clockwise direction.
  • Central pinion gears (CPB1) and (CPB2) and central bottom bevel gear (CBG2) are auxiliary gears which help to couple the steering action of upper bevel gear (CBG1) between upper and lower side of pinion bevel gears (CPB2) and (CPB4).
  • Left wheel pinion gears (LPB1), (LPB2) and (LPB3), and left upper bevel gears (LBG1) are auxiliary gears which help to couple the steering action of left wheel pinion bevel gears (LPB4).
  • right wheel pinion gears (RPB1), (RPB2) and (RPB3), and left upper bevel gears (RBG1) are auxiliary gears which help to couple the steering action of left wheel pinion bevel gears (RPB4).
  • Bevel-pinion gear set used in central, left and right gear set can have various variations.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Steering Mechanism (AREA)

Abstract

La présente invention concerne un système de direction de couple accouplé sur la base d'un train d'engrenages à pignon conique non inclinable pour des tricycles à moteur inversés. La tige de pivot au centre et la tige de pivot commandant les roues sont raccordées à un train d'engrenages à pignon conique, chaque train étant constitué de six engrenages coniques zérol. La tige de pivot au centre, lors de la rotation par l'intermédiaire d'une poignée, met en rotation un engrenage conique coaxial qui à son tour met en rotation un engrenage conique de pignon en prise avec celui-ci. L'engrenage à pignons au centre met alors en rotation l'engrenage à pignons du train d'engrenages du système de direction au niveau de chacune des roues par l'intermédiaire d'un arbre de transmission qui, à son tour, met en rotation l'engrenage conique fixé aux roues, mettant ainsi les roues en rotation. Ce système de direction peut également être utilisé dans un véhicule à quatre roues.
PCT/IN2019/050170 2018-02-28 2019-02-28 Système de direction de couple accouplé sur la base d'un train d'engrenages à pignon conique pour tricycles à moteur inversés Ceased WO2019167078A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201821007632 2018-02-28
IN201821007632 2018-02-28

Publications (1)

Publication Number Publication Date
WO2019167078A1 true WO2019167078A1 (fr) 2019-09-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IN2019/050170 Ceased WO2019167078A1 (fr) 2018-02-28 2019-02-28 Système de direction de couple accouplé sur la base d'un train d'engrenages à pignon conique pour tricycles à moteur inversés

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB102110A (en) * 1916-05-16 1916-11-16 John Warrick And Company Ltd Improved Auxiliary Driving Arrangement for Carrier Tricycles and the like.
FR3055125A1 (fr) * 2016-08-21 2018-02-23 Yannick Yamkoudougou Controle de direction d'un vehicule a trois roues par des roues arriere directrices.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB102110A (en) * 1916-05-16 1916-11-16 John Warrick And Company Ltd Improved Auxiliary Driving Arrangement for Carrier Tricycles and the like.
FR3055125A1 (fr) * 2016-08-21 2018-02-23 Yannick Yamkoudougou Controle de direction d'un vehicule a trois roues par des roues arriere directrices.

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