CN2470232Y

CN2470232Y - Pedal bicycle

Info

Publication number: CN2470232Y
Application number: CN01207793U
Authority: CN
Inventors: 刘建洞
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-03-26
Filing date: 2001-03-26
Publication date: 2002-01-09
Anticipated expiration: 2011-03-26

Abstract

The utility model relates to a pedal type bicycle. A driving mechanism of the utility model has the structure that a gearbox casing is fixed on an inclined supporting pipe of a bicycle frame, and the lower part of a gearbox is provided with a drive shaft which passes through a centre shaft casing tube of the bicycle frame; a right and a left unidirectional overrunning clutches are respectively fixed to both ends of the drive shaft, the drive shaft is fixedly connected to the inner rings of the overrunning clutches, each of the outer rings of the overrunning clutches is fixedly connected with a pedal respectively, and the pedals are connected with restoring tension springs; a gear wheel of the drive shaft drives a chain wheel via a plurality of duplicate gears, and the chain wheel drives a flywheel on a rear wheel shaft. In the utility model, the right and the left pedals swings up and down to drive the bicycle to travel, the movement of the bicycle is rich in interest and is good for health exercise, and the bicycle is driven by the gear to increase riding speed.

Description

Pedal-type bicycle

The utility model relates to bicycle, specifically a kind of pedal-type bicycle.

Bicycle is owing to the convenience, inexpensive of riding, and is not high to rto request, and becomes China both urban and rural residents's the main vehicle, be used to ride instead of walk, transport thing, even if in the automobile high-speed development, automobile enters today of family, bicycle is owing to the broad development future that still has free from environmental pollution.

Existing bicycle is transferred to drive the trailing wheel rotation with pedal axis chain-coiling and is advanced, and cyclist's both feet are pedaled pedal rotation, the dull fatiguability of taking action.Only with a pair of big or small chain sprocket drive, the speed of a motor vehicle is also restricted.

The purpose of this utility model provides a kind of pedal-type bicycle that type of drive is reformed, it is advanced by the upper and lower wobble drive bicycle of left and right pedal, the rich interest of action cymbals, favourable exercise health, it can improve riding speed through the gear transmission speedup.

The purpose of this utility model is achieved in that

A kind of pedal-type bicycle, comprise vehicle frame, wheel and transmission device, it is characterized in that: the structure of its transmission device is: a gear housing is packed in pipe collar on the diagonal ligament pipe of supporting saddle of vehicle frame, this lower gearbox portion has an imput shaft to pass vehicle frame axis sleeve pipe and supported by the bearing in the axis sleeve pipe, this both ends of main drive shaft respectively is fixed with a left side, right mono-directional overrun clutch, this imput shaft is fixed in the interior ring of this two mono-directional overrun clutch, each affixed stretcher of the outer shroud of this two overriding clutch, this two stretcher respectively connects an end of a reset tension spring, and this two reset tension spring end in addition connects vehicle frame; This imput shaft installs a driving gear, some dual gears in this driving gear drive gearbox, its last gear transmission one sprocket wheel, this sprocket wheel is with the flywheel on the chain gear hind axle, and described each double crosslinking gear shaft and sprocket shaft are supported in the axle bed of gear housing two side.

Described each dual gear and sprocket wheel can be with the axle sleeve kink in bolsters, and each bolster is installed in the gear case body wall and does not rotate;

Described each dual gear and sprocket wheel also can be installed in bolster with key, and each bolster is contained in the axle sleeve of gearbox wall and turns.

Dispose a steady bit strip at cyclist's upper body, be connected into " T " font by a cross band and a perpendicular band, this cross band middle part is placed in cyclist's neck and shoulder part, and two ends are by two hand-tight the holding of holding handlebar, and this perpendicular band is connected in vehicle frame downwards along the cyclist back and catches cyclist's back.

The described left and right stretcher that is fixed in the mono-directional overrun clutch outer shroud, its orientation can be positioned at the rear of overriding clutch, also can be positioned at the place ahead of overriding clutch, and the relative angle of this left and right stretcher is between 30 °-60 °, and is spacing by retracing spring.

The utility model has following actively useful effect:

1. this car stretcher above, lower swing replaces the pedal that revolves three-sixth turn of transmission, and the cymbals of riding is interesting, and the health of can exercising is good for health.

2. be provided with transmission gear in the gear case of this car transmission device, design the time suitably chooses gear quantity and number of teeth tower is joined, and can produce speed bicycle faster, suitablely rides the purposes of loading instead of walk.

Now in conjunction with the accompanying drawings:

Fig. 1 is the structural representation of the utility model one embodiment;

Fig. 2 is the structural representation of transmission device among Fig. 1;

Fig. 3 is the structural representation of imput shaft and stretcher among Fig. 2;

Fig. 4 is Fig. 3 A-A view;

Fig. 5 shows the structural representation of steady bit strip of the present utility model.

The same Fig. 1 of Fig. 6 is another embodiment.

Accompanying drawing number:

1. vehicle frame 101. oblique arm 102. axis sleeve pipes

2. wheel 201. rear flywheels

3. transmission device 301. casings 302. imput shaft

303. the outer shroud of interior ring 304. mono-directional overrun clutchs of mono-directional overrun clutch

305. stretcher (left and right each) 306. driving gears

307. dual gear 308. bolsters 309. dual gears

310. bolster 311. dual gears 312. bolsters

313. gear 314. sprocket wheels 315. bolsters

316. casing gap 317. axle sleeves, 318. retracing springs (extension spring)

4. pipe collar 5. screws

6. settling position band 601. cross bands 602. erect band

7. cyclist

Please refer to Fig. 1, Fig. 2, Fig. 3, Fig. 4, the utility model is a kind of pedal-type bicycle, comprise vehicle frame 1, wheel 2 and transmission device 3, the structure of its transmission device 3 is: a gear housing 301 is packed in pipe collar 4 on the diagonal ligament pipe 101 of supporting saddle of vehicle frame 1, these gear case 301 bottoms have an imput shaft 302 to pass vehicle frame axis sleeve pipe and supported by the bearing in the axis sleeve pipe, this bearing can adopt the bottom bracket bearing of existing bicycle, these imput shaft 302 two ends respectively are fixed with a left side, right mono-directional overrun clutch (mono-directional overrun clutch is a prior art), this imput shaft 302 is fixed in the interior ring 303 of this two mono-directional overrun clutch, outer shroud 304 each affixed stretcher 305 of this two overriding clutch, this two stretcher respectively connects an end of a reset tension spring 318, and this two reset tension spring 318 end in addition connects vehicle frame 1; On this imput shaft 302, install a driving gear 306, some dual gears 307,309,311 in this driving gear drive gearbox 301, its last gear 31 3 transmissions one sprocket wheel 314, this sprocket wheel stretches out from the gap 316 of casing, this sprocket wheel is with the flywheel on the chain gear hind axle 201, and described each double crosslinking gear shaft 308,310,312 and sprocket shaft 315 are supported on respectively in the axle bed of gear housing 301 two sides.

During enforcement, described each dual gear and sprocket wheel 314 can be with the axle sleeve kink in bolsters, and each bolster is installed in the gear case body wall and does not rotate;

During enforcement, described each dual gear and sprocket wheel also can be installed in bolster with key, and each bolster is contained in the axle sleeve 317 of gearbox wall and turns.

Please refer to Fig. 5, dispose a steady bit strip 6 at cyclist's upper body, perpendicular be with 602 to be connected into " T " font by a cross band 601 and, these cross band 601 middle parts are placed in cyclist's neck and shoulder part, two ends are by two hand-tight the holding of holding handlebar, and this is perpendicular to be connected in vehicle frame downwards along the cyclist back and to catch cyclist's back with 602.

The described left and right stretcher 305 that is fixed in mono-directional overrun clutch outer shroud 304, its orientation can be positioned at the rear of overriding clutch outer shroud and see Fig. 1, also Fig. 6 is seen in the place ahead that can be positioned at overriding clutch, and the relative angle of this left and right stretcher is between 30 °-60 °, and is spacing by retracing spring 318.

Claims

1. pedal-type bicycle, comprise vehicle frame, wheel and transmission device, it is characterized in that: the structure of its transmission device is: a gear housing is packed in pipe collar on the diagonal ligament pipe of supporting saddle of vehicle frame, this lower gearbox portion has an imput shaft to pass vehicle frame axis sleeve pipe and supported by the bearing in the axis sleeve pipe, this both ends of main drive shaft respectively is fixed with a left side, right mono-directional overrun clutch, this imput shaft is fixed in the interior ring of this two mono-directional overrun clutch, each affixed stretcher of the outer shroud of this two overriding clutch, this two stretcher respectively connects an end of a reset tension spring, and this two reset tension spring end in addition connects vehicle frame; This imput shaft installs a driving gear, some dual gears in this driving gear drive gearbox, its last gear transmission one sprocket wheel, this sprocket wheel is with the flywheel on the chain gear hind axle, and described each double crosslinking gear shaft and sprocket shaft are supported in the axle bed of gear housing two side.

2. pedal-type bicycle as claimed in claim 1 is characterized in that: described each dual gear and sprocket wheel can be with the axle sleeve kink in bolsters, and each bolster is installed in the gear case body wall and does not rotate;

3. pedal-type bicycle as claimed in claim 1, it is characterized in that: dispose a steady bit strip at cyclist's upper body, be connected into " T " font by a cross band and a perpendicular band, this cross band middle part is placed in cyclist's neck and shoulder part, two ends are by two hand-tight the holding of holding handlebar, and this perpendicular band is connected in vehicle frame downwards along the cyclist back and catches cyclist's back.

4. pedal-type bicycle as claimed in claim 1, it is characterized in that: the described left and right stretcher that is fixed in the mono-directional overrun clutch outer shroud, its orientation can be positioned at the rear of overriding clutch, also can be positioned at the place ahead of overriding clutch, the relative angle of this left and right stretcher is between 30 °-60 °, and is spacing by retracing spring.