CN2136795Y

CN2136795Y - Folding multifunction bicycle

Info

Publication number: CN2136795Y
Application number: CN 92225527
Authority: CN
Inventors: 贾新
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-06-22
Filing date: 1992-06-22
Publication date: 1993-06-23
Anticipated expiration: 2002-06-22

Abstract

The utility model relates to a folding gear transmission multifunction bicycle with small wheel diameter. The folding gear transmission multifunction bicycle with small wheel diameter mainly adopts a conversion structure of the gear transmission of rear wheels to cause the position of wheels to be transformed, and the utility model is simply to be disassembled, installed and combined by various novel and universal components of bicycles to realize the eight kinds of conversions of car shapes such as bicycles, luggage cars, wheelbarrows, etc. Thus, the folding gear transmission multifunction bicycle with small wheel diameter becomes a multifunction bicycle which can be used for every stages of people's life. Because the fully enclosed gear transmission is adopted, the folding gear transmission multifunction bicycle with small wheel diameter has high efficiency, long service life, convenient carryover and wide use; the utility model conducts the improvement for a quantity of disadvantages of the existing bicycles and luggage cars, and is a multifunctional short-distance carrying light-duty tool for carrying people and objects for families and travel.

Description

Folding multifunction bicycle

The utility model be a kind of can be by being equipped with along the minor diameter wheel multifunction bicycle of the rear wheel drive system of two rotational.(overall structure and existing bicycle are roughly the same) can be used as bicycle use when two-wheeled rotates in the vehicle frame plane; When two-wheeled rotated perpendicular to the vehicle frame plane, the combination by easy can be used as baggage car, usefulness such as hand barrow.Because vehicle frame middle part is the hinge connection, so the removable small size that builds up is more packed into and carried in the multi-functional bag; Because of this bag is removable closing,, also can cooperate the various states of this car to realize various functions again except that as the dress thing bag.

Existing bicycle is owing to chain-drive limitation (one-level chain-driving speed ratio can not be too high), so the bicycle wheel miniaturization is restricted.Many inventors have invented various folding bicycles by fruitful effort, and make it the degree that almost reached perfect.But take an overall view of, all promote owing to the big limitation of wheel diameter makes more great being difficult to of car body.Recently, a kind of steamboat footpath Toothed Belts Gearing folding of bicycle in the vehicle frame plane has been invented by Sweden.See scheme drawing (1) (this information sees Guangdong, port in November, 91 information newspaper).Press the arrow turnover among the figure, can be folded into scheme drawing (2).Reach volume little (high 85cm) (9kg) in light weight, carried light purpose.But because function singleness, speed not too high (speed per hour 25km) still is difficult to satisfy modern people house or the multi-functional requirement of travel.

Existing baggage car though hand barrow etc. have various functions, does not also have to change into the vehicle of bicycle, so it uses limitation is arranged also.As a kind of common baggage car, see scheme drawing (3) and figure (4), can become a plane that area is less along the direction of arrow is folding, loading and carry all very light.But this car can not meet the demands owing to do not possess the bicycle function as the short distance instrument of people's travel.Also have, various perambulators, though the vehicle of multi-functional usefulness such as existing shaking table, hand barrow, perambulator, limit makes the stage in children, also showing has limitation.

The bicycle chain transmission exists many shortcomings, as: easily fall chain, transmission intensity and stationarity are poor, and difficult realization sealing is lubricated, and efficient is low, the life-span is short etc.In order to overcome above-mentioned shortcoming, many inventors have made a large amount of achievements.Make gear transmission (or cog belt) replace chain-driving to have feasibility, and become a kind of development tendency.As Chinese patent technology CN203049U." rear axle gear drives three speed change chain-less bicycles ".This is novel to be that a kind of rear axle gear on the gear driving bicycle drives three transmission systems.Its structure is seen scheme drawing (5).This device is made of crank 1,

bevel gear

2,3,5,6, drive link 4, three speed varying back shafts 7.Gear 2 connects firmly with crank 1, and

gear

3 and 4 is fixed on the drive link two ends respectively, and

gear

6 and 7 axle heads connect firmly; Gear 2 and 3,5 and 6 meshes respectively.When the axis crank rotated, gear 2 rotated, and gear 3 rotates, and gear 5 rotated when drive link 4 rotated, and gear 6 rotates thereupon, and the axle skin 7 of three transmission systems rotates simultaneously, and trailing wheel rotates thereupon, bicycle running.This driving system good rigidly, lubricated light, life-span height, three speed.Above-mentioned chain-drive shortcoming is improved.This device has adopted transmission bar to transmit torque, and it is big to transmit distance, thereby satisfies existing bicycle structure requirement.But this device also exists some weakness, as: complex structure; Adopted with respect to spur gear wheel difficulty and all higher bevel gear of cost on making; Engaging gear is many and efficient is decreased etc., so not satisfactory.

The purpose of this utility model is that a kind of new bicycle will be provided, so that have the bicycle short distance manned loading functions such as function and baggage car, hand barrow, perambulator of riding instead of walk by easy dismounting combination.And adopted totally-enclosed lubricated spur gear driving system, and more comprehensively being improved in the hope of making the above-mentioned all shortcomings of bicycle chain transmission, thereby satisfied at home, travel is multi-functional to be the folding small-wheeled bicycle of people's each stage service throughout one's life.

The purpose of this utility model is to realize by the project organization of figure (6).Its structure mainly is made up of main parts size such as front-wheel 1, front fork 2, following flat beam vehicle frame 3, driver's tool-wrench 4, support 5, foot rest 6, cable brake 7, handle riser 8, handlebar 9, vehicle seat 10, saddle pipe 11, entablatrance 12, clip 13, axis standpipe 14, pedal 15, inclined tube 16, back wheel drive mechanism 17, car ladder 18, left back forks 19.

Parts

1,2,3,4,7,8,9 constitute the front-wheel direction controlling system, and wherein handle riser 8 is set in the front fork 2, unclamps clip, and handle riser 8 can move up and down in 2 or rotate, and can lock in desired location.Parts 10～19 constitute vehicle frame and drive systems, wherein entablatrance 12 left ends and stem 8 bearings connection, so when handlebar turns to and crossbeam do not interfere; Back-wheel drive mechanism 17 can make it pedal moment rotate to trailing wheel by gear transmission and drives car load advance (its auspicious separate to see below state); Saddle pipe 11 is set in 14, unclamps or locks by clip 13.

Parts

5 and 6 difference plug-in cards are in the hinge elasticity card of following flat beam both sides.Because hinge effect can be adjusted 5 and 6 distance, so can in the vehicle frame square frame, (area of frame is by existing popular sclerderm suitcase design-calculated) clamp a sclerderm suitcase.This function can be found out in view (7) at the A of figure (6).In a word, except that said structure and existing bicycle were slightly different, all the other were all identical with it as figure (6) overall structure function for this car.When desiring to take the opportunity,,, slide to get on the bus after just also can adopting and stride a mode, and this mode is obviously easy except that adopting existing sideslip row to get on the bus the customary way because the wheel footpath is little.Same about riding of this car with existing car, do not give unnecessary details.

From scheming (6) structure,,, drive with the people who adapts to different heights so the height of seat and handle can be adjusted within a large range because handle riser and saddle pipe can stretch in its sleeve pipe after unclamping clip (rotation) and locking thereupon.The adult takes the opportunity, and sees figure (6); The early youth takes the opportunity, and sees scheme drawing (8); When loading onto two jockey pulleys, child's seat is taken advantage of at the rear axle two ends, be seen that scheme drawing (9) and B thereof are to diagrammatic sketch (10).More incidentally, this is novel when driving as the child, can remove entablatrance 12, and

parts

5 and 6 for satisfying the short requirement of child's arm, bend towards interior locking with handlebar simultaneously.

From figure (6) structure, because down flat beam vehicle frame 3 and entablatrance 12 middle parts are that hinge connects, after unclamping the cutting ferrule of locking, car load can be along the doubling of hinge shaft axis, is about to two-wheeled and all turns to interior inclination (front-wheel changes 180 °; After pulling down inclined tube trailing wheel is rotated 80 ° along axis, its concrete structure function is seen below and is stated), doubling is then reduced to lowest order with handle riser and saddle pipe, and the pedal of left back fork 19 sides is pulled down anti-dress, handlebar is pulled down inserted in the middle sky again, can reach the minimum volume requirement.Form after folding is seen figure (11) and birds-eye view (12) thereof.

For easy to carry, the utility model has designed a knapsack (also can carry).See figure (13).Its geometric configuration is apart from shape, is zipper along EFC and ABG, sees long and two-short dash line, band " ' " point be corresponding point, after launching,, can be an oblong mat again along the arrow doubling.Chain lock is worn and is hung on as in each ring of figure (13), can be used as braces, also can be hooked in E and H point encircles, when belt with (seeing long and two-short dash line).

The structure of chain lock is seen scheme drawing (14), and end can be used as lashing rope and wearing lock etc. of baggage car for inserting column formula universal latch (long approximately 2.5m) again.

Above-mentioned knapsack is multi-functional, as a main application, is folded automobile-used in order to adorn packing, and it uses signal part figure (11) and figure (12) long and two-short dash line, and other function cooperates described later later-model various functions to be illustrated again.

In order to reach the conversion that replaces chain-driving and other function car etc., designed back wheel drive mechanism especially, see figure (15).Mainly by axis standpipe 14, gearcase 002, spur gear wheel 003,011,013, axis sleeve pipe 004, right back fork body, 005, axis 006, crank fastener 008,009, bearing 010 is crossed wheel shaft 012, flywheel (sprocket changes the involute straight-tooth into) 014, rear axle housing 015, rear axle 016, inclined tube 16, car carries 18, trailing wheel 017, felt pan 018, left back fork 19, fastener 019, support 5, main parts size such as jam nut are formed.Integral structure is a base with axis sleeve pipe 004.When unclamping clip, in managing behind vehicle frame, axis standpipe 14 rotates, and whole transmission device rotates along the axis of axis standpipe thereupon synchronously, and can be thereupon by locked clip device on required angle; Be fixed on 005 in the totally-enclosed gear case, annotate grease in it and have geat.

Because left back fork 19 is fixed on axis sleeve pipe 004 two ends with right back fork body 005, two forks are embedded in 14 the end slot, and when unclamping lock nut 020, entire mechanism can be rotated in the scope of groove permission along the axis, its rotational angle can be selected according to needs, and what see this structure design of figure (16) is 80 °.Need to prove, before rotation, must take inclined tube 16(apart and unclamp that the trailing wheel axle head is female to get final product).

As follows about transmission principle: as to drive the axis rotation when crank produces moment, drive with 006 gear that connects firmly 003 and rotate, the gear 011 that drive is engaged with rotates, drive with 011 wheel shaft 012 of crossing that connects firmly and rotate, because gear 013 is fixed on 012, so 011 and 013 rotation synchronously, 013 drives meshing with it flywheel rotates, rotate thereby drive trailing wheel, drive whole car and advance.

Gear train assembly of the present utility model is sealed in the gearcase, constitutes the lubricated space of an osed top, and its each S. A. is equipped with bearing, so whole transmission should be brisk; This transmission adopted spur gear wheel, stable drive, good rigidly, and do not have axial component, integral structure is simplified.This structure employing two-stage (multistage if the increasing of wheel footpath can be adopted, or increase the third wheel number more, but efficient is hanged down), speed ratio is:

The wheel of this structure of l=［ Z gear 003xZ gear 013 ］［ Z gear 011xZ gear 014 ］ footpath can be selected between 8 "～12 ", and the tooth number Z as if whole gear can have l=(6～10) speed ratio.If choosing wheel footpath is 8 ", can get speed ratio l=7 and be advisable, this will be the native system preliminary election wheel directly, like this can with 28 " the same fast speeds of car.Because the overall gear driving system is general technology, again because all the other structures also are the current techique of technology voluntarily, so do not give unnecessary details.

Two rotational structures of this novel transmission mechanism design-calculated are in order to realize the conversion of various function cars such as baggage car.As described above, will scheme inclined tube 16 in (6) and car ladder 18 with driver's tool spanner 4 and unclamp, this end will be pulled down by rear axle; The vehicle frame clip is unclamped half-twist (oppositely changeing to gearcase) locks then; Also 90 ° of dextrorotation of handlebar; After snapping fits into inclined tube and the car ladder that draws back in the clip that unclamps according to the mode of figure (17) thereupon with locked clip device; After the handlebar clip unclamped, by position shown in the figure (17), an end penetrated in the seat ring, the end locked clip device of still packing into; To scheme (15) nut 020 and unclamp, by scheming to be rotated in place back locking shown in (6) and figure (15) long and two-short dash line, the

support

5 and 6 that will scheme (6) is by scheming (17) and lateral plan (18) thereof by dress with driving system; Foot rest 6 is snapped in the elasticity card as figure (18) sets level, insert support 5 in the 6 narrow frames and will grow end and insert front and rear fork and tighten in the firmware 019 and locking; With crank 15 pull down by figure (17) (will pull down 008 refill tight in axle head) and figure (18) pack in the clip of support 5 and locking, at last spanner 4 still is installed in original position this moment and existing identical the converting of baggage car folder function.Find out that from figure (18) this car is " h " type, about the same with existing foldable luggage trolley deployed configuration, the function using method also together.Just when need lash goods, replace elastic rubber band with figure (14) chain.The baggage car of this conversion is except that the advantage with existing foldable luggage trolley, owing to adopt the pneumatic tyre wheel, so the little and increase stationarity of vibrations during walking; Also owing to when placing, when spreading the slide fastener bag that launches as figure (13), can work as interim seat use as figure (18).This car also has folder function, will scheme (18) 019 and unclamp, and can pull down 5 and 6, and it is folding that crank 15 can be pressed arrow, can reduce placement space like this.

As described above, the support 5 that will scheme in (6) directly inserts in the hinge elasticity card, and by dress, end colludes tightly (preventing that support is by the upset of figure (19) direction of arrow) with the plate that colludes of figure (18) in addition by figure (19) angle; Pedal 15 is reverse by dress, pedal is inserted in the narrow frame of foot rest, and with rotating bolt crank is locked, and the slide fastener bag that will scheme (14) to launch is again spread (mode of connection is various, omits), just finishes the conversion as figure (19).This pattern can satisfy seat function requirement at home.

As described above, the support 5 of figure (18) need only be pulled down and directly is installed in the elasticity card, place by figure (20) mode, again the slide fastener bag being launched pad spreads, can be positioned over ground by figure (20) mode, just finish the function conversion of little single bed, this kind of can be single bed and uses (child uses bed).

As described above, foot rest 6 lower ends that will scheme (19) are carried 18 with car and are expanded into the U type by being loaded on the inboard function conversion that just can finish car of foot rest wheel shaft by loading onto jockey pulley.Can make hand barrow (or perambulator) this moment uses.See its scheme drawing (21).

As described above, foot rest 6 is stuck in locking on horizontal 12 (same by the mode that is loaded on the crank with Figure 19) again by last jockey pulley perpendicular to the vehicle frame plane with its narrow frame, support 5 is also spread foam pad by figure (19), just finish the function conversion of figure (22), can be used as cot and use this moment.

In sum, the utility model passes through to use and dismounting conversion various structures and the position one more, but the folding small-wheeled footpath bicycle of formative gear transmission, the short distance instruments of riding instead of walk such as juvenile's car, perambulator; Also can utilize the two axial lines rotational transform of back wheel drive mechanism, can form house or manned carriers such as collapsible baggage car, hand barrow, shaking table, seat, child's bed.In a word, the eight functions that the utility model is above-mentioned, life each and every one the stage all can find its function, and some shortcomings of existing bicycle, baggage car have been done many improvement, be people house, travel, manned loading, easy to carry, broad-spectrum multi-purpose tool.

Claims

1, a kind of collapsible gear transmission steamboat footpath multifunction bicycle mainly comprises by parts such as front-wheel 1, front fork 2, handle riser 8, handlebar 9, vehicle frame 3, trailing wheel 017, saddle pipe 11, saddle, axis and forming, and it is characterized in that:

Driven wheel 003 on the axis drives the dual gear 011,013, the gear 013 that are installed on the right back fork body 005 and drives the flywheel 014 that is installed on the rear axle 016, and trailing wheel 017 rotates thereupon,

Suit axis standpipe 14 in the back pipe that does not have positioning groove of flat beam vehicle frame 3 is managed positioning groove and clip fixed position by the back down,

Suit axis sleeve pipe 004 in the transverse tube of axis standpipe 14 is by nut 020 fixed position.

2, multifunction bicycle as claimed in claim 1 is characterized in that right back fork body 005 and left back fork 19, is anchored on axis sleeve pipe 004 two ends respectively and is embedded in the position-limited trough on axis standpipe 14 transverse tubes.

3, multifunction bicycle as claimed in claim 1 is characterized in that the gear transmission structure of totally-enclosed gear case and interior dress thereof, serves as that base is by dress with right back fork body 005 all.

4,, it is characterized in that driving gear 003 by third wheel series and flywheel gear 014 realization speedup transmission, comprises one group of third wheel, 011,013 at least as claim 1 and 3 described multifunction bicycles.

5, as claim 1 and 3 described multifunction bicycles, it is characterized in that described transmission gear all adopts garden post straight gear.

6, as multifunction bicycle as described in the claim 4, it is characterized in that described transmission gear all adopts garden post straight gear.

7, as claim 1 and 3 described multifunction bicycles, it is characterized in that flywheel gear 014 changes involute garden post straight gear into by the sprocket wheel of bicycle freewheel outer ring.

8, multifunction bicycle as claimed in claim 4 is characterized in that flywheel gear 014 changes involute garden post straight gear into by the sprocket wheel of bicycle freewheel place circle.

9, multifunction bicycle as claimed in claim 5 is characterized in that flywheel gear 014 changes involute garden post straight gear into by the sprocket wheel of bicycle freewheel outer ring.