WO2011002341A2 - Преобразователь движения на базе планетарной цепной передачи и способ преобразования движения на базе цепных передач - Google Patents
Преобразователь движения на базе планетарной цепной передачи и способ преобразования движения на базе цепных передач Download PDFInfo
- Publication number
- WO2011002341A2 WO2011002341A2 PCT/RU2010/000370 RU2010000370W WO2011002341A2 WO 2011002341 A2 WO2011002341 A2 WO 2011002341A2 RU 2010000370 W RU2010000370 W RU 2010000370W WO 2011002341 A2 WO2011002341 A2 WO 2011002341A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chain
- drive
- circuit
- sprockets
- pairs
- Prior art date
Links
- 230000033001 locomotion Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 16
- 239000000969 carrier Substances 0.000 claims description 11
- 230000003534 oscillatory effect Effects 0.000 claims 1
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 22
- 238000002485 combustion reaction Methods 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000003387 muscular Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009182 swimming Effects 0.000 description 3
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
- A61G5/021—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms
- A61G5/023—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular propulsion mechanisms acting directly on hubs or axis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
- A61G5/024—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person having particular operating means
- A61G5/025—Levers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
- F16H2019/0681—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member the flexible member forming a closed loop
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/18—Mechanical movements
- Y10T74/18056—Rotary to or from reciprocating or oscillating
- Y10T74/18152—Belt or chain carried member
Definitions
- both the converter mechanism and the conversion method relate to the field of mechanical engineering, in particular, to mechanisms and methods for converting the reciprocal-linear movements of the driving link of the kinematic chain of the mechanism into one-way rotation of the driven link of this mechanism, as well as summing the reciprocal-linear movements of several driving links .
- the invention is directed to a joint, simultaneous solution of these problems.
- the essence of the invention is a planetary chain transmission, in which (1) the chain is the driving link, (2) the chain is driven back by a leash, i.e. directly and / or drove through the satellite sprockets installed on them, which create movable circuit closures, and (3) individual sections of the chain move at different speeds - all this is fundamentally new to the theory of machines and mechanisms.
- An overrunning clutch can be used to convert the reciprocating, oscillating motion into intermittent one-way rotation, which is used in the prior art to prevent accidental transmission of rotation from the driven link back to the lead.
- the invention has analogues in several respects - functional and constructive.
- crank mechanism The most widely used functional analogue, in particular in piston engines, is a crank mechanism.
- the main disadvantages of this mechanism are -
- the conversion of the reciprocating, oscillating motion into one-way rotation is also carried out by a hinged four-link with a leading rocker and driven crank, in particular - in a manual wheelchair drive.
- This mechanism has the same drawbacks as the crank.
- the closest analogue is the usual chain transmission, with which the movement is only transmitted, but not converted and not summed.
- the problem to which the claimed solution is directed can be formulated as the creation of a device and method for converting the reciprocating motion of the driving link of the kinematic chain of the mechanism into one-sided rotation of the driven link of the given mechanism, and for summing the reciprocating motion of several driving links on one driven link .
- the essence of the proposed method is the conversion of linear motion into circular by means of chain-sprocket meshing, i.e. the transformation of a chain of chain transmission from an intermediate, auxiliary element of this transmission into its leading link.
- the technical result that can be obtained by the present invention is the summation of several reciprocal-linear movements performed simultaneously, without any fundamental restrictions on their direction and shape of the trajectory, performed manually or mechanically, for example, by a piston of a piston engine, as well as the conversion of the total reciprocal -linear motion in one-way rotation, and without loss of idle time.
- the invention allows to intensify energy efficiency with a muscular drive due to the elimination of the need for unproductive, without payload, auxiliary, idle movements, and due to the possibility of increasing the payload, the muscular forces applied during working, productive movements, and also improves the efficiency of the machine drive, in particular - in comparison with a crank drive, and under certain conditions - ABOUT
- the driving circuit 2 is driven by a structural element b, rigidly connected with it, and hereinafter referred to as the "leash".
- the driving circuit 2 is driven by a structural member 4, hereinafter referred to as a carrier, connected to the driving circuit 2 through a pair of sprockets 5, hereinafter referred to as satellite, the axes of which are rigidly connected to carrier 4; sprockets 5 mesh with the drive chain 2 on the "outer" side of its contour, i.e. on the side opposite to engagement with the sprocket 10; this creates a movable circuit closure of the drive circuit 2, in which its speed is different in its various sections, and the chain transmission, i.e. the chain complex and all the sprockets that mesh with it, with such a closure, is hereinafter referred to as the "planetary chain transmission".
- the drive chain 2 is driven by at least two carriers 4.
- At least two drive chains 2 are provided with one lead 6.
- movement from the driving circuit 2 is transmitted to the actuating element 7 by means of an auxiliary circuit 13, and to the last by two pairs of coaxial sprockets 14, 16 and 15, 17, each of these two pairs being connected to each other through the overrunning clutch 9, and the sprockets 14, 15 are engaged with the drive chain 2 on different sides of its circuit, and the overrunning clutches 9 are oriented in the same way.
- FIG. 1 is a kinematic diagram of a chain transmission known in the art
- FIG. 2 presents a kinematic diagram of a simple, basic embodiment of the claimed invention
- FIG. 3 is a kinematic diagram of a rack and pinion gear known in the art
- FIG. 4 is a diagram of a manual wheelchair drive — as an example of the practical application of a basic embodiment of the claimed invention
- FIG. 5 is a kinematic diagram of a planetary chain drive
- FIG. 6 is a diagram of a manual wheelchair drive as an example of the practical use of a planetary chain drive
- FIG. 7 is a diagram of the drive of two leading circuits with a single leash, which allows you to get rid of idling;
- FIG. 8 is a drive diagram similar to that shown in FIG. 7, but with rack and pinion gears, to demonstrate the feasibility of the implementation of the proposed method not only chain, but also gears;
- FIG. 9 is a drive diagram similar to that of FIG. 7, but with a leash driven by two piston engines to demonstrate the advantages of the proposed method, in particular, the absence of design restrictions both in the number of engines and in the stroke length of their pistons;
- FIG. 10 shows a diagram with an auxiliary circuit to get rid of idling, and with overrunning clutches oriented identically;
- FIG. 11 is a diagram of a manual wheelchair drive with an auxiliary chain to get rid of idling, and with overrunning clutches oriented in the opposite direction;
- FIG. 12 is a kinematic diagram of a planetary chain drive with two carriers
- FIG. 13 shows a rack and pinion circuit, functionally similar to that of FIG. 12, - showing that the use of rack and pinion gears is associated with design limitations;
- FIG. 14 is a modification of the circuit shown in FIG. 12, with carriers moving along non-parallel trajectories;
- FIG. 15 is a modification of the circuit shown in FIG. 12, with a carrier not moving progressively;
- FIG. 16 is a schematic diagram with a lead chain shared by a leash and a carrier;
- FIG. 17 is a diagram of a twin carrier mechanism driven by pistons of a 4-stroke two-cylinder internal combustion engine, i.e. a mechanism functionally replacing the crank mechanism;
- FIG. 18 is a diagram of a mechanism with a built (3-component) carrier driven by a piston engine cylinder with a fixed piston fixed to the mechanism body, i.e. scheme of the mechanism functionally replacing the crank mechanism;
- FIG. 19 is a diagram of a mechanism with three carriers, two of which can alternately, controllably rigidly connect to either a rack, i.e. fully braked, or with a piston engine rod, which allows you to stepwise control the speed of the actuator, and that is functionally equivalent to the gearbox, in addition to smooth adjustment due to the speed of the piston;
- FIG. 20 is a diagram of the simplest embodiment of a constructive solution to such a gearbox using two valves
- FIG. 21 is a diagram of a muscular drive of a floating device based on a planetary chain drive.
- FIG. 1. for comparison with the claimed variants of the mechanism, depicts a kinematic diagram of a chain transmission, known from the prior art, in which
- Fig. - 2 shows a kinematic diagram of a variant of the mechanism, which in the claimed invention is the basic, simplest, where
- leash b is depicted as a slider moving rectilinearly and translationally, but in principle, leash 6 can move both non-rectilinearly and progressively, as will be shown later
- FIG. Figure 3 shows, for comparison, a functionally similar converter using rack-and-pinion gearing instead of chain-sprocket gearing, i.e. not going beyond the scope of the prior art.
- FIG. 4 gives an example of practical application of the basic variant of the claimed invention according to FIG. 2, namely, in a wheelchair drive.
- the driven link of the actuator namely the impeller 7 of the carriage 1, which is its mover, rotates counterclockwise when manually driven to the left, in the direction of the arrow, two leads 6 - one of which is for the right hand, and one for the left - and continues to move along inertia during the reverse, idle run of the leads 6.
- the guides of the leads 6 are mounted on the armrests of the stroller 1, and the sprocket 10 and the overrunning clutch 9 are mounted coaxially with the impeller 7.
- Such use of the claimed invention allows the user to move the carriage to the speed of the runner ⁇ as limiting factor is not the way to drive the movement of the impeller 7, and the physical, power user skills.
- FIG. 5 shows a variant of the invention with a planetary chain drive, where, in contrast to the basic version, FIG. 2, the drive chain 2 is open and its ends are rigidly attached to the rack 1, and the leash 6 is replaced by a carrier 4; the speed of the driving circuit 2 in section 2-1 is zero, and in section 2-2 it is equal to twice the speed of carrier 4.
- FIG. 6 shows a variant of a planetary chain drive as applied to a wheelchair, which will allow the user to move 2 times faster compared to the embodiment of FIG. 4, provided that the speed of the leashes 6 and the design parameters of the remaining elements of the stroller in FIG. four.
- FIG. 7 presents an embodiment of the invention, where, in contrast to the basic embodiment of FIG. 2 and with respect to cases where the device driven by the claimed converter has a double actuating link, for example, as for railway locomotives having more than one mover, idling can be done by doubling the base conversion mechanism, as shown in FIG. 2.
- the leads 6, transmitting movement to both drive chains 2 from the rod 8 are attached to opposite branches of identical drive chains 2; so, in the device shown in FIG. 7, the lead 6-2 is attached to the upper branch of the drive chain 2-2, and the other lead, 6-1 is attached to the lower branch of the drive chain 2-1.
- the permissible piston stroke length 11 in the cylinder 12 does not depend on the diameter of the wheels 7, which allows to increase the piston stroke length and thereby increase the efficiency of the machine.
- R here is the rail, roadbed.
- FIG. 8 shows an embodiment of the mechanism of FIG. 7, where both working gears of the chain ⁇ sprocket are replaced by rack gears, similarly to the embodiment of FIG. 3.
- doubling, or doubling of gears in a single converter mechanism takes this option beyond the scope of the prior art.
- FIG. 9 shows a variant of the mechanism of FIG. 7, where the piston engine rod 8 is driven by two pistons 11.
- the number of both pistons 11 and cylinders 12 is not fundamentally limited.
- an embodiment of the invention is presented with reference to a 4-stroke internal combustion engine; the numbers 1 ⁇ 4 indicate the sequence of the combustion chambers when the same phases of the duty cycle are performed in them.
- one of the pairs of sprockets - either a pair of 14, 15, or a pair of 16, 17 - is installed on opposite sides of the circuit of one of the chains: either the leading circuit 2 or the auxiliary circuit 13, and the sprockets of this pair, respectively, rotate in opposite directions.
- the pair 14, 15 is installed on opposite sides of the path of the drive circuit 2, as shown in FIG. 10
- the freewheels 9 are set oriented identically.
- the pair 16, 17 is installed on opposite sides of the auxiliary circuit 13, as shown in FIG. 11, the couplings 9 are oriented in the opposite direction.
- Chain 13 can be used simultaneously for a speed variator, which does not go beyond the scope of the prior art.
- FIG. 12 shows an embodiment of the claimed invention with respect to the drive of one slave link — the operating sprocket 10 — by the drive chain 2 with several carriers, the number of which is not fundamentally limited; in FIG. 12 are two of them.
- the speed of the drive chain 2 on the site 2-3 of its engagement with the working sprocket 10 is equal in this embodiment to the doubled sum of the speeds of all the carriers.
- FIG. 13 is shown for comparison with FIG. 12 is a functionally similar embodiment of a rack-to-rack adder, i.e. not going beyond the scope of the prior art, the rail of which is mounted on a slider that is finite in a series of sliders installed in series.
- the leading sliders can only move parallel to each other, which creates structural limitations.
- FIG. 14 modified embodiments of the claimed invention of FIG. 12, illustrating its advantages, compared with the embodiment of FIG. 13, namely, constructive freedom, due to the optionality for several carriers 4 to move parallel to each other, as well as for each of them - the optionality to move neither linearly nor translationally.
- the total length of the center-to-center distances becomes variable, which may require the presence of a tension sprocket 27.
- FIG. 16 shows an embodiment of the claimed invention, where the movements of the leash 6 and carrier 4 are summed up.
- the speed of chain 2 in its section 2-3 is equal to twice the speed injected 4; with complete braking of carrier 4, satellite sprockets 5 turn into reference sprockets 3, and the speed of the drive chain 2 in section 2-3 is equal to the speed of leash 6; when both leading elements work, i.e. and leash 6, and carrier 4, the speed in section 2-3 is equal to the sum leash speed 6 and double speed entered 4.
- Transport devices with a muscular drive of this type will have advantages both over wheeled devices with a bicycle type drive and over swimming devices with a rowing, oar drive.
- FIG. 17 shows an embodiment of the claimed invention with respect to a 4-stroke two-cylinder internal combustion engine.
- the speed of the drive chain 2 at its working section, in the area of engagement with the sprockets 14, 15, is 4 times higher than the speed of the double carrier 4 or, what is the same, the speed of the pistons 11, which allows them to switch to a more favorable, quiet mode of operation, relatively with a crank mechanism at the same angular speeds of the sprocket 10 and the crankshaft.
- Other advantages of this engine option over an engine with a crank mechanism are -
- FIG. 18 shows an embodiment of using the inventive converter in a steam engine drive, capable in principle of replacing a steam turbine in power and energy units. It also shows that
- the carrier can receive movement from the cylinder 12 of the piston engine with the piston 11 stationary; the design options for the placement of the valve-steam distributor in the body of the rod and steam pipelines in the rod and piston are not considered in this application,
- FIG. 19 is a diagram of a use case of the inventive converter with three carriers, two of which, 4-2, 4-3 can be completely braked, and then the working section 2-1 of the drive circuit 2 will move at twice the speed of the engine piston, or it can be completely braked only drove 4-3, and drove 4-2 is rigidly connected to carrier 4-1 and, accordingly, to the rod, and then the working section of chain 2 will move at a speed 4 times the speed of the piston, or carrier 4-3 may in turn be firmly connected to 0
- FIG. twenty A diagram of the simplest embodiment of a constructive solution to such a gearbox using two gate valves 18 is shown in FIG. twenty.
- FIG. 21 presents a variant of the claimed invention with respect to a swimming device with a muscular drive and a blade propeller - a propeller 19, which has advantages over a paddle drive:
- two bevel gears 20, 21 and a chain gear with sprockets 23, 24 and a chain 25 provide transmission of movement to the screw 19 through the side of the device, and the spur gear 26 provides the rotation of the propeller 19 for maneuvering.
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201080030282XA CN102439332A (zh) | 2009-07-03 | 2010-07-02 | 基于行星链传动的运动转换器和基于链传动的运动转换方式 |
US13/258,810 US20120036949A1 (en) | 2009-07-03 | 2010-07-02 | Planetary chain drive motion converter and method for converting motion using chain drives |
GB1120639.8A GB2485487A (en) | 2009-07-03 | 2010-07-02 | Planetary chain drive motion converter and method for converting motion using chain drives |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2009126490/11A RU2451219C2 (ru) | 2009-07-03 | 2009-07-03 | Способ преобразования движения на базе цепных передач |
RU2009126490 | 2009-07-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2011002341A2 true WO2011002341A2 (ru) | 2011-01-06 |
WO2011002341A3 WO2011002341A3 (ru) | 2011-02-24 |
Family
ID=43411644
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2010/000370 WO2011002341A2 (ru) | 2009-07-03 | 2010-07-02 | Преобразователь движения на базе планетарной цепной передачи и способ преобразования движения на базе цепных передач |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120036949A1 (ru) |
CN (1) | CN102439332A (ru) |
GB (1) | GB2485487A (ru) |
RU (1) | RU2451219C2 (ru) |
WO (1) | WO2011002341A2 (ru) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2775360C (en) * | 2012-04-20 | 2018-09-25 | Allan Ray JEDNEAK | Planetary gear retrieval system |
EP3426548A4 (en) * | 2016-03-07 | 2019-10-30 | Rehabilitation Institute of Chicago | HAND DRIVE MECHANISM FOR MOBILE VEHICLE |
CN107830132A (zh) * | 2017-10-30 | 2018-03-23 | 湖州东鸥机械制造有限公司 | 一种转动式链条安全件 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4453729A (en) * | 1982-09-20 | 1984-06-12 | Lucken Wesley O | Occupant propellable wheelchair |
US4925200A (en) * | 1989-06-01 | 1990-05-15 | Jones Micheal D | Tricycle drive mechanism |
SU1752642A1 (ru) * | 1990-04-28 | 1992-08-07 | Л. Ф. Пискун | Транспортное средство, приводимое в действие мускульной силой человека |
US5322312A (en) * | 1991-08-07 | 1994-06-21 | Cammack Milton A | User-propelled vehicle |
US5683321A (en) * | 1993-08-03 | 1997-11-04 | Franklin E. Barnett | Drive apparatus for converting linear motion to rotary motion |
-
2009
- 2009-07-03 RU RU2009126490/11A patent/RU2451219C2/ru not_active IP Right Cessation
-
2010
- 2010-07-02 CN CN201080030282XA patent/CN102439332A/zh active Pending
- 2010-07-02 WO PCT/RU2010/000370 patent/WO2011002341A2/ru active Application Filing
- 2010-07-02 GB GB1120639.8A patent/GB2485487A/en not_active Withdrawn
- 2010-07-02 US US13/258,810 patent/US20120036949A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4453729A (en) * | 1982-09-20 | 1984-06-12 | Lucken Wesley O | Occupant propellable wheelchair |
US4925200A (en) * | 1989-06-01 | 1990-05-15 | Jones Micheal D | Tricycle drive mechanism |
SU1752642A1 (ru) * | 1990-04-28 | 1992-08-07 | Л. Ф. Пискун | Транспортное средство, приводимое в действие мускульной силой человека |
US5322312A (en) * | 1991-08-07 | 1994-06-21 | Cammack Milton A | User-propelled vehicle |
US5683321A (en) * | 1993-08-03 | 1997-11-04 | Franklin E. Barnett | Drive apparatus for converting linear motion to rotary motion |
Also Published As
Publication number | Publication date |
---|---|
CN102439332A (zh) | 2012-05-02 |
US20120036949A1 (en) | 2012-02-16 |
GB201120639D0 (en) | 2012-01-11 |
WO2011002341A3 (ru) | 2011-02-24 |
RU2451219C2 (ru) | 2012-05-20 |
GB2485487A (en) | 2012-05-16 |
RU2009126490A (ru) | 2011-01-10 |
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