CN2808712Y

CN2808712Y - Foldable gear-driven bicycle

Info

Publication number: CN2808712Y
Application number: CN 200520102194
Authority: CN
Inventors: 尹隆康
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-16
Filing date: 2005-05-16
Publication date: 2006-08-23
Anticipated expiration: 2015-05-16

Abstract

The utility model relates to a folding gear-driving bicycle; the folding device of the rear wheel is composed of a front support frame and a rear support frame; the rear wheel is folded on the edge of a bicycle frame by the rotation of the rear support frame; the driving device is a folding driving device and is matched with the folding device of the rear wheel; a driving gear driven by pedals drives a driven gear on a rear shaft by a plurality of intermediate driving gears which are mutually engaged so as to the rear wheel rotates, wherein the two intermediate driving gears arranged at both sides of the hinged position of the front support frame and the rear support frame follows the folding of the rear support frame to separate and follows the unfolding of the rear support frame to engage. Adopting the structure, the folding driving device is in gear driving; the rear wheel of the bicycle has no chain to drag; the rear wheel can be rotationally folded by the folding device of the rear wheel and is folded on a front wheel of the edge of the bicycle frame; the bicycle is folded into three sections. The after bicycle has small volume and is smallest one of the folding bicycles with a same wheel diameter at present.

Description

A kind of collapsible gear driving bicycle

Technical field

The utility model relates to bicycle structure, a kind of specifically collapsible gear driving bicycle.

Background technology

Bicycle is a kind of portable tool of the daily traffic of people, ordinary bicycle is a unitary construction, volume is bigger, deposit at some use occasion such as out of town trip or household, the kind that needs Folding Bicycle, so that reduce volume, to be convenient to car and boat delivery or household and to deposit, the appearance of folding bicycle has increased this convenience greatly.From the folding bicycle of present announcement, some problems below existing: 1. take turns the footpath and can not well solve with volume.The convenience of bicycle and the three-dimensional dimension of bicycle have direct relation, and volume is more little, carry Vietnamese side just.Reach this point, present folding bicycle has all adopted the way that reduces the wheel footpath, and this makes the performance of bicycle aspect safety and speed descend.The traffic method has regulation to the size in wheel footpath, and the too little bicycle in wheel footpath does not fill to be permitted to set out on a journey and travels.2. the three-dimensional dimension of existing bicycle is also deposited shortcoming on ease of use.Existing bicycle is in the high three-dimensional dimension of length and width, and also more than 30 centimetres, this is still inconvenient for the little space, such Shan, ticket entrance of entering the station by subway from the size of announcing the minimum one dimension of index.3. present folding bicycle, irregularity has outstanding structure in appearance.This as bus, in the subway, in the elevator etc., colludes other people clothing, thing at the many environment of people easily., this irregularity its in transit, in the private car boot, deposit and bring inconvenience.4. existing folding bicycle does not have the folding problem of fine solution stretcher in folding process, the outstanding mechanism of formation.5. existing folding bicycle has adopted the eighty percent discount method, and launching the back vehicle commander only is about 1.1 meters, is turning, and in the processing of situation such as suddenly stop, occurs accident easily.

Chinese patent 92230693.1, disclose a kind of: no chain-drive Folding Bicycle, this kind bicycle drives front fork by preceding fork shaft and front-wheel rotates to an angle, rotate to an angle by back vent tubular axis drive back vent and trailing wheel, front-wheel and trailing wheel are piled up, reach the purpose of folding bicycle, this kind bicycle driving device is fixed on the axle intracutaneous of the center of front-wheel, adopt the bevel planet gear driving device,, reach the effect that drives front-wheel by free-wheel clutch.The shortcoming of this kind bicycle: actuating device is contained in front-wheel, and pedal is also at front-wheel, thus effort by bike the time, and speed is when very fast, and the car weight heart leans forward, and is dangerous, occurs accident easily.

Summary of the invention

Technical problem to be solved in the utility model is: good, the no chain drive of a kind of safety, the collapsible gear driving bicycle that volume after folding is little, outward appearance is neat are provided.

In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: collapsible gear driving bicycle, comprise: vehicle frame, folding handlebar, front and back wheel, axis, telescopic saddle, foldable pedal device, brake gear, the front-wheel folding device, trailing wheel folding device and driving device, described front-wheel folding device drives front fork by preceding fork shaft and front-wheel rotates folding backward, it is characterized in that: described trailing wheel folding device, form by front frame and after poppet, front frame is captiveed joint with vehicle frame, after poppet is connected with the hinge form with front frame, trailing wheel is folded on the vehicle frame limit by the rotation of after poppet, after trailing wheel launched, front frame and after poppet were locked by latching device; Described driving device is folding driving device, match with the trailing wheel folding device, the driving gear that is driven by pedal is by the driven gear on the intermediate drive gear driving rear axle of some mutual interlocks, trailing wheel is rotated, and intermediate drive gear is divided into two parts, and some is contained on the front frame, another part is contained on the after poppet, wherein be contained in two intermediate drive gears of front frame and both sides, after poppet hinged place, throw off interlock with the expansion of after poppet with the folding of after poppet.After adopting this structure: because its driving device is that gear transmission is collapsible, the trailing wheel of bicycle does not have chain and pins down, can be by the trailing wheel folding device with the trailing wheel rotary folding, be stacked on the front-wheel that is folded in the vehicle frame limit, bicycle is converted into three sections, volume is less behind this bicycle folding, is volume minimum in the at present same folding bicycle of taking turns the footpath.

In order to solve the problems of the technologies described above, the utility model adopts following further technical scheme: described pedal device is contained on the front frame front end by axis, form by pedal, preceding folding rod, back folding rod, pedal is connected on the folding rod of back, inwardly turns back around preceding folding rod with the back folding rod.After adopting this structure, pedal can make things convenient for folding, make bicycle folding after outward appearance more neat.

Description of drawings

Fig. 1 is a deployed condition scheme drawing of the present utility model.

Fig. 2 is a trailing wheel folding device scheme drawing of the present utility model.

Fig. 3 is a driving device scheme drawing of the present utility model.

Fig. 4 is trailing wheel folding device of the present utility model and driving device scheme drawing.

Fig. 5 is a pedal device scheme drawing of the present utility model.

Fig. 6 is a folded state scheme drawing of the present utility model.

The specific embodiment

Below the contrast accompanying drawing further specifies the utility model.

Fig. 1 is an expansion scheme drawing of the present utility model.The utility model is the improvement to existing folding bicycle, whole bicycle is made up of vehicle frame 1, folding handlebar 2, front and back wheel 3,4, axis 5, telescopic saddle 6, foldable pedal device, brake gear, front-wheel folding device, trailing wheel folding device and driving device, and improvements of the present utility model are trailing wheel folding device, driving device and pedal device.

Fig. 2 is a trailing wheel folding device scheme drawing of the present utility model.Described trailing wheel folding device, form by front frame 9 and after poppet 10, front frame 9 is captiveed joint with the tail end of vehicle frame 1, after poppet 10 is connected with the hinge form with front frame 9, trailing wheel 4 is folded on vehicle frame 1 limit by the rotation of after poppet 10, and after trailing wheel 4 launched, front frame 9 and after poppet 10 were locked by latching device, this latching device adopts bolt-type, or adopts the latching device described in the prior art.

Fig. 3 is a driving device scheme drawing of the present utility model.Described driving device is folding driving device, match with the trailing wheel folding device, the driving gear 12 that is driven by pedal 11 is by the driven gear 13 on the intermediate drive gear driving rear axle 21 of some mutual interlocks, trailing wheel 4 is rotated, intermediate drive gear is divided into two parts, some is contained on the front frame 9, another part is contained on the after poppet 10, wherein be contained in two

intermediate drive gears

14,15 of front frame 9 and both sides, after poppet 10 hinged place, throw off interlock with the folding of after poppet 10 with the expansion of after poppet 10.

Fig. 4 is trailing wheel folding device of the present utility model and driving device scheme drawing.The driving device of the present utility model use that matches with the trailing wheel folding device, driving device can be installed in the left side of vehicle frame 1, the also right right side that is installed on vehicle frame 1, when being installed on the left side, the driving gear 12 of driving device is contained in the left side of front frame 9 front ends by axis 5, two fork arms 18 about after poppet 11 is provided with, 19, wherein left fork arm 18 is provided with plurality of teeth wheel shaft 20, these gear wheel shafts are used to install intermediate drive gear, play the effect of transmission gear, the gear of the utility model driving device can be positioned on the outside of left crotch 18, also can be installed on the inboard of left crotch 18, when being loaded on the inboard for ease of a pair of intermediate drive gear 14 of front frame 9 and both sides, after poppet 10 hinged place, 15 phase interlocks, front frame 9 and after poppet 10 touching positions have is convenient to

intermediate gear

14,15 grooves that pass through 22,23, two fork arms 18 about trailing wheel 4 is loaded on, between 19, and be rotationally connected by rear axle 21 and two fork arms.Driving device of the present utility model can be installed in the right side of vehicle frame 1 symmetrically, and this moment, the trailing wheel folding device was also installed symmetrically.In order to make gear transmission more reasonable, intermediate gear quantity is preferably odd number.

Fig. 5 is a pedal device scheme drawing of the present utility model.Described pedal device is contained on front frame 9 front ends by axis 5, forms 17 by pedal 11, preceding folding rod 16, back folding rod, and pedal 11 is connected on the folding rod 17 of back, inwardly turns back around preceding folding rod 16 with back folding rod 17.

Fig. 6 is a folded state scheme drawing of the present utility model.When driving device is installed in the left side of vehicle frame 1, at first pedal 11 is inwardly turned back, front-wheel 3 is rotated in the direction of the clock is folded in vehicle frame 1 limit, after trailing wheel 4 is pressed anticlockwise direction rotation folding, be stacked on the front-wheel 3, foldings such as handlebar 2, saddle 6 is neat.Equally, when driving device is installed in the right side of vehicle frame 1, front-wheel 3 is folded in vehicle frame 1 limit by the anticlockwise direction rotation, trailing wheel 4 is rotated folding in the direction of the clock, be stacked on the front-wheel 3, among the embodiment of the present utility model, the saddle 6 of folding bicycle is captiveed joint with the after poppet 10 of trailing wheel folding device by standpipe 24, saddle 6 also is folded in vehicle frame 1 limit with the rotation of trailing wheel 4 like this, and saddle 6 also can be installed by alternate manner certainly, does not influence the folding of bicycle.

The utility model has well solved the problem of wheel footpath and volume conflict, does not neatly have protrusion simultaneously in appearance.After folding, volume is minimum in same folding bicycle of taking turns the footpath.Be 30 centimetres commercially available folding bicycle in wheel footpath, folding back typical sizes is 54 * 73 * 32 centimetres, and after adopting the utility model folding, the wheel footpath is 50 centimetres, be of a size of after folding: 54 * 54 * 16 centimetres, volume only is the former 37%, and the wheel footpath but is the former 1.7 times.The former launches the back vehicle commander is 1.08 meters, and the utility model expansion back vehicle commander is 1.58 meters, also grows 10 centimetres than identical ordinary bicycle of taking turns the footpath.This shows advance of the present utility model and convenience.

Claims

1, a kind of collapsible gear driving bicycle, comprise: vehicle frame (1), folding handlebar (2), front and back wheel (3), (4), axis (5), telescopic saddle (6), foldable pedal device, brake gear, front-wheel folding device, trailing wheel folding device and driving device, described front-wheel folding device drives front fork (8) by preceding fork shaft (7) and front-wheel (3) rotates folding backward, it is characterized in that:

A. described trailing wheel folding device, form by front frame (9) and after poppet (10), front frame (9) is captiveed joint with vehicle frame (1), after poppet (10) is connected with the hinge form with front frame (9), trailing wheel (4) is folded on vehicle frame (1) limit by the rotation of after poppet (10), after trailing wheel (4) launched, front frame (9) and after poppet (10) were locked by latching device;

B. described driving device is folding driving device, match with the trailing wheel folding device, the driving gear (12) that is driven by pedal (11) is by the driven gear (13) on the intermediate drive gear driving rear axle (21) of some mutual interlocks, trailing wheel (4) is rotated, intermediate drive gear is divided into two parts, some is contained on the front frame (9), another part is contained on the after poppet (10), wherein be contained in two intermediate drive gears (14) of front frame (9) and after poppet (10) both sides, hinged place, (15), throw off interlock with the folding of after poppet (10) with the expansion of after poppet (10).

2, a kind of according to claim 1 collapsible gear driving bicycle, it is characterized in that: described pedal device is contained on front frame (9) front end by axis (5), form by pedal (11), preceding folding rod (16), back folding rod (17), pedal (11) is connected on the back folding rod (17), inwardly turns back around preceding folding rod (16) with back folding rod (17).

3, a kind of collapsible gear driving bicycle as claimed in claim 1, it is characterized in that: a side that is installed in front frame (9) front end by the driving gear (12) of pedal (11) driving by axis (5), two fork arms (18), (19) about after poppet (10) is provided with, wherein the fork arm with driving gear (12) the same side is provided with the gear wheel shaft (20) that intermediate drive gear is installed, about trailing wheel (4) is loaded between two fork arms (18), (19), and be rotationally connected by rear axle (21) and two fork arms.

4, a kind of collapsible gear driving bicycle as claimed in claim 3 is characterized in that: front frame (9) and after poppet (10) have is convenient to groove (22), (23) that intermediate drive gear (14), (15) pass through.

5, as claim 1 to 4 a kind of collapsible gear driving bicycle as described in each, it is characterized in that: described intermediate drive gear quantity is odd number.