CN2501781Y

CN2501781Y - Pedal bicycle

Info

Publication number: CN2501781Y
Application number: CN01263519U
Authority: CN
Inventors: 谭春阳
Original assignee: TAN CHUANYANG
Current assignee: TAN CHUANYANG
Priority date: 2001-10-31
Filing date: 2001-10-31
Publication date: 2002-07-24
Anticipated expiration: 2011-10-31

Abstract

The utility model relates to a bicycle which adopts up and down steps drive, the bicycle doesn't have a middle shaft, the bicycle body is shortened; a rear axle shaft also is used as a driven main shaft, the rear wheel is driven to move forward by a change gear set, a ratchet wheel, a flywheel and a crank-rocker mechanism, in the 360 degree range of the main shaft rotation, the wheel can exert force effectively, improve the driven moment, transmission efficiency and speed; the bicycle has two speed transmission, is favorable for climbing; the bicycle is provided with a basket or a storage box of large capacity without shaking, is favorable for shopping; the bicycle is provided with an oval sun-rain umbrella of large size which can expand and bend over, is convenient for running in all weathers; the bicycle is provided with a bicycle saddle of simple structure and good elasticity, is comfortable for riding.

Description

The stepping type bicycle

The utility model relates to a kind of employing mechanism's bicycle driven of marking time up and down, belongs to the land light-duty vehicle.

Existing bicycle adopts chain transmission mode, and its efficient and reliability are all imperfect; And in the week that Middle axle crank rotates, can't be afterburning in the angular range of quite a few, thus the efficient that makes both legs pedal can not be given full play to.

The purpose of this utility model will be cancelled link chain mechanism exactly, uses gear transmission instead; And both legs can be pedaled with the form that actv. is marked time up and down, to increase its drive efficiency and to improve the speed of a motor vehicle; In addition, also will increase several utility function, so that the performance of vehicle is more attained is perfect.

The purpose of this utility model is to realize by following structure design: one, the cancellation axis, and with the double drive shaft of doing of hind axle, one group of variable gear on the main shaft drives one group of variable gear on the parallel with it countershaft in next door respectively thus, the change of converter speed ratio is controlled by a speed-changing mechanism in addition, drive a cover ratchet or an overriding clutch mechanism more simultaneously, last drive again is installed in the gear on the trailing wheel, thereby makes the rear wheel running; The a pair of crank that is mutually 180 ° respectively is equipped with at the two ends of drive shaft, vehicle frame a cover crank rocker mechanism each side is housed, on the extension arm top of its connecting rod, then respectively be equipped with one foot-operated, two foot-operated moves up and down along arching trajectory, but direction each other is opposite; Two, the preceding montant of vehicle frame is longer, and high-capacity bicycle basket or closed storage tank are housed thereon, and it does not connect firmly mutually with front-wheel, can not turning to swinging with front-wheel; Three, the saddle that is supported by the biplate spring plate is housed on the back montant of vehicle frame; And but up-down adjustment and reflexibie large scale eyeball umbrella be housed in montant.

By above structural analysis as can be known, the utlity model has following advantage:

1, when driving crank by connecting rod, effective power-assisted angular range is wide, and every limit is respectively greater than 180 °, thereby in 360 ° of scopes in a week, all reinforcing has effectively improved drive efficiency and effective torque, thereby also just improved the speed of a motor vehicle; 2, cancelled axis, vehicle body is shorter than similar bicycle, and body frame structure for automotive is also simpler relatively; 3, there is high-capacity bicycle basket then to help storing; 4, can be convenient under burning sun or travel greatly in the rain with the eyeball umbrella of car.

Concrete structure of the present utility model is by shown in the accompanying drawing: Fig. 1 is complete vehicle structure figure, and Fig. 2 then is the scheme drawing of gear train assembly and speed-changing mechanism.

Specify the service condition of each parts below in conjunction with accompanying drawing: in accompanying drawing 1, [11] are mounted in the crank on the main shaft, and [12] are rocking bars, [13] be connecting rod,, foot-operated [14] be housed on its extension arm top, when down pedaling along preceding camber line when foot-operated, crank is with regard to rotating spindle; [15] be mounted in saddle on the two plate spring plates, the centre at two plate spring plates accompanies cylindrical roller; [16] be mounted in the small-sized backrest in the vertical tube behind the vehicle frame, it also can be spread when not required the user; [17] be mounted in large scale eyeball umbrella behind the backrest, the handle bar of this umbrella can stretch in the back vertical tube of vehicle frame, its different length of each root umbrella frame, but preceding long back is short, when opening, and the umbrella cover ovalisation, when packing up umbrella, it is turned back and after hanging on car by active joint; [18] then be mounted in the high capacity bicycle basket or the closed storage tank of vehicle frame front portion, it is held by the underframe that is fixed on the vehicle frame fully: the case lid lock of closed storage tank and the steering lock interlock of front-wheel, and the lock of the lock of rear wheel and eyeball umbrella links;

In accompanying drawing 2, show the structure of gear train assembly, [O wherein ₁] be the drive shaft that two ends have crank, [O ₂] be mounted on the vehicle frame and countershaft spindle parallel; Drive variable gear [2] or [4] on the countershaft respectively by the variable gear on the main shaft [1] or [3], drive a cover ratchet flywheel or an overriding clutch mechanism [5] [6] more simultaneously, drive a gear [7] that is fixed on the trailing wheel at last and promote the rear wheel running; Variable gear [2] [4] is enclosed within on the axle sleeve of ratchet flywheel or overriding clutch mechanism [5] [6], and slides before and after can doing thereon, between two axle sleeves key connecting is arranged; [8] be a slide bar that two trundles are respectively arranged up and down, it also can slide front and back, two trundles of its below place the both sides of gear [4] respectively, two trundles of its top then slide on the gabarit of trilobal slide block [21] respectively: the top of variable speed control dish [9] is hexagonal ratchet [22], and the bottom then is the slide block [21] of trilobal; The card tooth that two protrusions are arranged on the cable quadrant [10] is stuck under the pressure effect of spring [19] in the ratchet [22], and when pulling steel rope [20] times, variable speed control dish [9] just rotates one 60 ° angle, thereby finishes gear shifting operation one time.

Claims

A kind of bicycle comprises front and back wheel and vehicle frame, it is characterized in that: the axis of cancellation on the ordinary bicycle, and with hind axle [O ₁] the double drive shaft of doing, the variable gear on the main shaft [1] or [3] drive the parallel with it countershaft [O in next door respectively thus ₂] on variable gear [2] or [4], drive cover ratchet flywheel or an overriding clutch mechanism [5] [6] simultaneously, drive a gear [7] that is fixed on the trailing wheel again and promote the rear wheel running; Variable gear [2] [4] is enclosed within on the axle sleeve of ratchet flywheel or overriding clutch mechanism [5] [6], and slides before and after can doing thereon, between two axle sleeves key connecting is arranged; Also be equipped with one can before and after the slide bar [8] that slides, its below has two trundles to place the both sides of gear [4] respectively, and its top also has two trundles to slide on the gabarit of trilobal slide block [21] respectively; The top of variable speed control dish [9] is hexagonal ratchet [22], and the bottom then is the slide block [21] of trilobal; The card tooth that two protrusions are arranged on the cable quadrant [10] is stuck under the pressure effect of spring [19] in the ratchet [22], and when pulling steel rope [20] times, variable speed control dish [9] just rotates one 60 ° angle, thereby finishes gear shifting operation one time; The a pair of crank that is mutually 180 ° is housed at the two ends of drive shaft, one cover crank [11] rocking bar [12] mechanism then respectively is housed in the left and right sides of vehicle frame, extension arm top at its connecting rod [13], one foot-operated [14] then are housed, two foot-operated moves up and down along arching trajectory respectively, but direction each other is opposite; The preceding montant of vehicle frame is longer, high-capacity bicycle basket or closed storage tank [18] are housed thereon, it is held by the underframe that is fixed on the vehicle frame fully, the steering lock interlock of the case lid of closed storage tank lock and front-wheel, the lock of trailing wheel then with the lock interlock of eyeball umbrella; Saddle [15] is installed on the two plate spring plates, in the centre of two plate spring plates, accompanies columniform roller; A small-sized backrest [16] is installed in the back vertical tube of vehicle frame; A large-sized eyeball umbrella [17] is installed in the back of backrest, and the handle bar of this umbrella can be flexible in the vertical tube of back, the different length of each root umbrella frame of umbrella, preceding long back is short, when opening, and the umbrella cover ovalisation, when packing up umbrella, it is turned back and after hanging on car with an active joint.