CN1621306A - Reverse pedaling and accelerating mechanism for bicycle - Google Patents
Reverse pedaling and accelerating mechanism for bicycle Download PDFInfo
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- CN1621306A CN1621306A CN 200410104252 CN200410104252A CN1621306A CN 1621306 A CN1621306 A CN 1621306A CN 200410104252 CN200410104252 CN 200410104252 CN 200410104252 A CN200410104252 A CN 200410104252A CN 1621306 A CN1621306 A CN 1621306A
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- gear
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- pedaling
- wheel
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Abstract
The present invention is one kind of speed varying mechanism installed to cycle for altering the speed via changing the pedaling direction. The speed varying mechanism consists of one circular gear box installed to the left side of the pedal shaft and with punched casing, middle shaft, two gears in the tooth ratio of 5 to 3, two oppositely installed overrunning clutches on the same shaft and two transition gears. The present invention has the advantages of altering speed only by changing the pedaling direction, simple structure, reasonable design, easy manufacture and low cost, and is suitable for pedaled cycles and wheeled chair.
Description
Technical field:
The present invention relates to a kind of speed-changing mechanism, definite a kind of being applicable to of saying so is assemblied on foot-operated (hand) vehicle, do not make the device that any operation can realize speed change in vehicle '.
Background technology:
The transmission system of the existing several forms of existing bicycle (mainly being bicycle), and these transmission systems all need to operate gearshift with hand when speed change.Because operating handle is far away and affect by steel rope with gearshift position distance, regular meeting causes operation malfunctioning and do not change retaining.
This device is just very simple, and speed change does not need to do any operation, and not shifting gears, this is said.Be that forward pedaling is a kind of speed, backward pedaling is again a kind of speed, and the ratio of two kinds of speed can be designed to 1 to 1.5; 1 to 1.7; 1 to 2 etc.Comprehensive all multifactor considerations, the ratio of two kinds of speed of this routine device is 1 to 1.66.
Summary of the invention:
The present invention program does a round gearbox, and (welding) sleeve pipe left side (right side is a hinge wheel) at bicycle pedal spindle (axis) is installed.It is that 5: 3 gear and two pairs of overriding clutchs of oppositely settling and two transition transmission gears of same axle composition are formed by gear box casing (130 millimeters of diameters, wide 25 millimeters), axis (being pedal spindle), two ratios of number of teeth.(original two pairs of pedals, hinge wheel etc. are constant).
The present invention does not need to do the great advantage of any operation during except that speed change, also have simple in structure, reasonable in design, conveniently make, cheap advantage, be applicable to that device is at all on foot-operated and hand (as wheelchair) vehicle.
Description of drawings:
Be described further below in conjunction with accompanying drawing.This figure is this mechanism's assembly drowing of 1: 1, for the needs of narrating are done necessary explaining and arranging earlier.
1, part 1 (hereinafter to be referred as part 1, all the other are identical) is an axis among the figure, i.e. the pedal axle; Part 3 is a pedal, about each one pair; Part 7 is a hinge wheel; Part 10 is the bicycle middle shaft sleeve pipe, i.e. pedal outer shaft sleeve pipe (also being welded with the crossbeam of bicycle on it), and these all are original details.
2, because of manufacturing process needs, part 11 and part 12 are to press fit over together after separately making, and can regard same part (comprising part 4 and 17 two copper sheathings of part of being pressed in the hole) as, represent with part 11 in the narration below, are named the gear sleeve.Its device is in bottom bracket axle pipe fitting 10, and two ends are with 9 supportings of ball bearing of main shaft spare.Equally, part 15 and part 16 also are considered as same part (comprising part 17 copper sheathings that are pressed in the hole), with part 16 representatives, are named big gear wheel.
3, part 17 copper sheathings, part 18 pins and part 19 springs are each 2, and their supporting respectively parts 11 and part 16 and part 1 of placing are formed last two overriding clutchs that oppositely are provided with of same axle, are named left and right power-transfer clutch.Part 20 and part 25 be two intermesh and respectively with part 11 and part 16 ingear transition gears.
4, from scheming the left side, part 1 is rotated counterclockwise just to be called changes (rotation direction that promptly steps bicycle usually), part 1 is clockwise rotated be called counter-rotating.
The specific embodiment:
As shown in the figure, entire mechanism is assembled in the round gearbox of being made up of part 13,14,22,29 that is welded on part 10 left sides.
When part 1 is just changeing, part 18 drivening pieces 11 synchronous forward by right clutch are rotated, and the part 7 (hinge wheel) that is fixed on the part 11 also rotates together, thereby drive the bicycle rear rotation by chain vehicle are moved ahead, this is with the same by bike usually, and this is a kind of speed.Meanwhile part 11 makes 25 counter-rotatings of the part that is engaged with, not only makes just changeing but also making with part 20 ingear spares 16 (being big gear wheel) with part 25 ingear spares 20 and reverse.Because of part 1 is just changeing, part 16 counter-rotatings, surmount state so the left clutch that part 16 and part 1 are formed is in, and part 16 is in uncharge idling conditions.
When part 1 counter-rotating, rotate by 18 drivening pieces of the part in the left clutch, 16 synchronous backwards, make the part 20 that is engaged with just change, make with part 20 ingear spares 25 counter-rotatings not only but also the part 7 that is just changeing, is being fixed on the part 11 with part 25 ingear spares 11 is also just changeed, move ahead thereby drive the trailing wheel rotation by chain, this is another kind of speed.In this process part 1 reverses, and part 11 remains and just changeing, and surmounts state so the right clutch that their are formed is in.
During because of part 1 counter-rotating at first drivening piece 16 rotates synchronously, part 16 is the big gear wheel of 100 teeth, promptly part 1 changes 1 and encloses, part 16 turns over 100 teeth.By the transition of part 20, part 25, pass to that it also should turn over 100 teeth on the part 11.And actual part 11 to make be 60 teeth, turn over 100 teeth and promptly be equivalent to also will change 2/3 circle (40 teeth) after it will turn over 1 circle (60 teeth).Part 11 has changeed one and 2/3rds circles with part 7 hinge wheels that are fixed thereon when being part 1 counter-rotating 1 circle.So just realized the purpose of speedup.
Here " speedup " said is meant that under the identical situation of forward and reverse pedaling frequency backward pedaling is than fast one and 2/3rds times of forward pedaling vehicle gait of march (this is the same with other type speed-changing mechanism meaning).
Do not make any gear shift operation in this speed-change process, just the rider is just being pedaled and is being rotated and the back-pedalling rotation, positive and negatively pedals or does not pedal conversion at any time and carry out.Also two power-transfer clutch transpositions can be provided with (actual only the need made region of interest transposition on the part 1), thereby make the speed that just scrunches step on speed faster than back-pedalling.For making backward pedaling comfortable, the pedal spindle position of installing this mechanism's vehicle can suitably be provided with forward.
Claims (3)
1, a kind of reverse pedaling and accelerating mechanism for bicycle is that overriding clutch and two transition gears of the reverse setting that constitutes of gear, pin, spring and the same axle of 3: 5 (perhaps 2: 3,1: 2 etc.) are formed by housing, two ratios of number of teeth.This mechanism (or claiming device) need not any operation and can realize speed change, only needs the user to change backward pedaling into by forward and gets final product (vice versa).It is characterized in that: this mechanism is welded on bicycle pedal spindle sleeve pipe (10) left side, the gear box casing (13 that it is welded by sheet stamping, 14,22,29), in pedal spindle (1) is housed, with the gear sleeve (11 that is loaded on the axle (1), 12) and big gear wheel (15,16), gear sleeve (11,12) in axis sleeve pipe (10), support with two ends ball bearing of main shaft (9), sky is enclosed within the transmission gear (20 on the axle (24), 21), sky is enclosed within the transmission gear (25 on the axle (27), 26), hinge wheel (7), two pairs of pedals (3), clamp nut (2,4,6,8,28), copper sheathing (4,17,21,26) and spring washer (23) form.
2, reverse pedaling and accelerating mechanism for bicycle according to claim 1, it is characterized in that: pin (18) and spring (19) are housed in the gear sleeve (11,12) form a forward overriding clutch jointly with axle (1), and also being housed in the big gear wheel (15,16), pin (18) and spring (19) and axle (1) form a reverse overriding clutch jointly, promptly two overriding clutchs can not rotate by driven gear sleeve (11,12) in same axle (1) (18), have been to surmount state.But the pin (18) on the left side will drive big gear wheel (15,16) counter-rotating synchronously this moment, just change, will make with gear (20) gears in mesh (25) not only and reverse, but also make and gear (25) gears in mesh sleeve (11,12) just changes by the gear (20) that is engaged with.Thereby the hinge wheel (7) that is fixed on the gear sleeve (11,12) is just being changeed by chain drive vehicle to move ahead.And because of big gear wheel be 100 teeth, the gear of gear sleeve (11,12) is 60 teeth, the big gear wheel (15,16) of i.e. axle (1) synchronous rotation when turning around has been changeed 100 teeth, go up its 100 tooth that also should turn round and pass to gear sleeve (11,12) by transmission gear (20,25), gear sleeve (11,12) just must change one and 2/3rds circles and just reach 100 teeth.Gear sleeve (11,12) and hinge wheel (7) reality that is placed in outside it when axle (1) counter-rotating 1 circle is just being changeed one and 2/3rds circles like this, has so just realized speedup.
4, reverse pedaling and accelerating mechanism for bicycle according to claim 1, it is characterized in that: it is a kind of speed that axle (1) forward pedaling rotates, and do not make any variable speed operation, and as long as it is a kind of speed again just that backward pedaling axle (1) rotates, thus the purpose of realization speedup.Positive and negatively scrunch or do not pedal conversion at any time, be not affected.Do not pedal the overriding clutch that Shi Youyuan is loaded on the vehicle rear wheel and work the effect of surmounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104252 CN1621306A (en) | 2004-12-18 | 2004-12-18 | Reverse pedaling and accelerating mechanism for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410104252 CN1621306A (en) | 2004-12-18 | 2004-12-18 | Reverse pedaling and accelerating mechanism for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1621306A true CN1621306A (en) | 2005-06-01 |
Family
ID=34766893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410104252 Pending CN1621306A (en) | 2004-12-18 | 2004-12-18 | Reverse pedaling and accelerating mechanism for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1621306A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745300A (en) * | 2011-04-21 | 2012-10-24 | 日驰企业股份有限公司 | Reverse-stepping multi-stage gear-shifting internal transmission |
| CN102935873A (en) * | 2012-10-30 | 2013-02-20 | 朱幕松 | Positive-negative driving multifunctional automatic gearbox of bicycle |
-
2004
- 2004-12-18 CN CN 200410104252 patent/CN1621306A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102745300A (en) * | 2011-04-21 | 2012-10-24 | 日驰企业股份有限公司 | Reverse-stepping multi-stage gear-shifting internal transmission |
| CN102745300B (en) * | 2011-04-21 | 2016-05-18 | 日驰企业股份有限公司 | Reverse-stepping multi-stage gear-shifting internal transmission |
| CN102935873A (en) * | 2012-10-30 | 2013-02-20 | 朱幕松 | Positive-negative driving multifunctional automatic gearbox of bicycle |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |