CN2245025Y

CN2245025Y - Folding multifunctional bicycle

Info

Publication number: CN2245025Y
Application number: CN 95217136
Authority: CN
Inventors: 沈德义
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-25
Filing date: 1995-09-25
Publication date: 1997-01-15
Anticipated expiration: 2005-09-25

Abstract

The utility model relates to a folding multifunctional bicycle; the frame is composed of a front frame body, a middle frame body and a rear frame body which are connected by a pin shaft and a pin nail. The front frame body is matched with a front fork one end of which is provided with a front wheel; the upper end is matched with a handlebar composed of a handlebar base and a movable handlebar rod. A saddle seat, a wheel disc with pedals and a rear wheel provided with a flywheel are respectively arranged at the upper end, the lower-left end and the right-lower end of the rear frame body. A clutch is arranged between the wheel disc with pedals and the flywheel of the rear frame body; the small wheel disc on the clutch is connected with the wheel disc with pedals by a chain, and a big wheel disc on the clutch is connected with the flywheel by a chain. The utility model has the advantages of simple structure, convenient folding and expansion and easy portability in pulling or pushing, which can be combined into a carriage for loading goods.

Description

The Collapsible multifunctional bicycle

The utility model relates to a kind of Collapsible multifunctional bicycle.

Foldable bicycle of the prior art, though folding structure mode is various, its folding main purpose generally is to carry and collect, and because the bicycle inconvenience operation after folding and do not have other function, become carrier's burden, it is restricted in actual applications.

The purpose of this utility model is the weak point that exists at folding bicycle in the prior art, and a kind of Collapsible multifunctional bicycle is provided, and can push away after making it folding, the roping row, is convenient for carrying; Can amount to into the dolly of burden goods, make it under non-riding condition, have another function.

Improve the speed of advance of bicycle when riding, and make its at folding pusher, draw and carry and control driver train rotation during as the goods trolley travelling, make its flexible operation, convenience, be the another purpose that the utility model will reach.

The technical scheme that realizes above-mentioned purpose is: a kind of Collapsible multifunctional bicycle, it comprises a front vehicle wheel that is installed in the front vehicle fork lower end, a rear wheel that disposes flywheel, with the handlebar that places the front vehicle fork upper end, the saddle of vehicle body upper portion configuration and the wheel disc that has pedal are with wheel disc and flywheel bonded assembly chain.The vehicle frame of this bicycle is connected and composed through bearing pin and pin by a front frame body, middle support body and back frame body; Its front vehicle fork is assemblied in the front end of front frame body, by the wheel disc, flywheel of band pedal and connect bottom and the upper end that driver train that chain forms and saddle are assemblied in back frame body respectively.

The technical scheme that realizes the utility model purpose also comprises: on back frame body, between the wheel disc of band pedal and the flywheel axial slip jaw clutch is installed, an end of this power-transfer clutch is provided with the wheel disc of small trochal disc through chain connecting band pedal; The other end is provided with big trochal disc and connects flywheel through chain.Place the handlebar of front vehicle fork upper end a V-arrangement that is fixed in front vehicle fork top seat and a pair of movable barre that is hinged on the front vehicle fork upper end to be made of, its seat upper end is provided with the barre caulking groove, and barre can be placed on the caulking groove internal fixation when launching.

The utility model is compared with folding bicycle of the prior art has following advantage:

1, simple in structure, launch, fold conveniently.

But push-and-pull is carried after 2, folding; Can constitute the dolly of burden goods, have cycling function in addition.

3, owing to be provided with middle wheel disc and clutch mechanism, when riding, can increase speed of advance; Fold and carry with easy to use after folding.

The drawing of accompanying drawing is described as follows:

Fig. 1 is this Collapsible multifunctional bicycle integral structure scheme drawing;

Fig. 2 is the utility model handle bar structure front view;

Fig. 3 is the utility model tooth-like clutch structure cutaway view that endwisely slips.

Below in conjunction with drawings and Examples the utility model is further described: provide as accompanying drawing, the vehicle frame of the utility model Collapsible multifunctional bicycle is connected and composed through bearing pin 15 and pin 14 by front frame body 4, middle support body 5 and back frame body 6, pin 14 locks and can make

support body

4,5,6 connections be a straight line, open pin 14,

support body

4,5,6 is that the center relatively rotates with two bearing pins 15.Front vehicle fork 2 is installed in the front end of front frame body 4, the lower end assembling front vehicle wheel 1 of this car fork, upper end configuration handlebar 3.Its handlebar 3 is made of seat 16 and two barres 17 that are configured in the front vehicle fork upper end the V-arrangement that is fixed in front vehicle fork top.Barre 17 adopts a center cross structure to be connected with a hinge with front vehicle fork, and it can be rotated along all directions.The upper end of seat 16 being provided with the caulking groove that coincide with barre 17, can take when barre launches and be embedded in the groove internal fixation.Saddle 7 is installed in the upper end of back frame body 6, and bottom righthand side is installed the rear wheel 9 that disposes flywheel 10, and the lower-left end is equipped with the wheel disc 13 of band pedal.Power-transfer clutch 8 is fixed on the back frame body 6 between the wheel disc 13 and flywheel 10, and a side of this power-transfer clutch is equipped with small trochal disc 18; Opposite side is equipped with big trochal disc 21, and its clutch function is fixed in the axial slip tooth 19 cooperation realizations that the fixed engagement tooth 20 and on the axle can slide vertically by one.The a pair of push rod 22 that is oval cross section is set between

denticle

19 and 20, rely on driving lever control its rotation can realize two engaging tooths from close.Wheel disc 13 is connected by chain 12 with small trochal disc 18; Big trochal disc 21 is connected by chain 11 with flywheel 10.

Support body serves as that the axle turnover is flat zigzag with bearing pin 15 before, during and after during this bicycle folding, and two wheels contact to earth and can push away, draw with the people and accompany.As burden goods dolly the time; will before, during and after frame be that axle rotates respectively and is 90 ° with the bearing pin; the frame combination is flute profile before, during and after making; with a front vehicle fork and a front frame body dowel fixes that sets; to keep the front vehicle wheel direction to fix, rotate barre its bar head embedding is taken in the embedding folder below saddle, make it become dolly and push away, pull handle; the goods carrier that will have the ramuscule wheel in will being disposed at again on the support body puts down expansion, a simple and easy band goods dolly.

For making things convenient for the control of power-transfer clutch, can on middle frame, fix a stay cord, by connecting the driving lever that control push rod 22 rotates behind the fixed shaft wheel, when after-frame rotates with respect to middle frame, rely on tightening of stay cord to affect driving lever, the control push rod rotates, and realizes that power-transfer clutch is disengaged position.

Claims

1, a kind of Collapsible multifunctional bicycle, it comprises a front vehicle wheel (1) that is installed in front vehicle fork (2) lower end, a rear wheel (9) that disposes flywheel (10), with the handlebar (3) that places the front vehicle fork upper end, the saddle (7) of vehicle body upper portion configuration, and the wheel disc (13) that has pedal, with wheel disc and flywheel bonded assembly chain; It is characterized in that: the vehicle frame of this bicycle is connected and composed through bearing pin (15) and pin (14) by front frame body (4), middle support body (5) and back frame body (6), its front vehicle fork (2) is assemblied in the front end of front frame body (4), by the wheel disc (13) of band pedal, bottom and upper end that driver train that flywheel (10) and connection chain are formed and saddle (7) are assemblied in back frame body (6) respectively.

2, Collapsible multifunctional bicycle according to claim 1, it is characterized in that: on back frame body (6), between wheel disc (13) and the flywheel (10) axial slip tooth-like clutch (8) is installed, an end of this power-transfer clutch is provided with small trochal disc (18) and connects the wheel disc (13) that has pedal through chain (12); The other end is provided with big trochal disc (21) and connects flywheel (10) through chain (11).

3, according to claim 1,2 described Collapsible multifunctional bicycles, it is characterized in that: place the handlebar of front vehicle fork upper end seat (16) and a pair of movable barre (17) that is hinged on the front vehicle fork upper end to be constituted by a V-arrangement that is fixed in front vehicle fork top, its seat (16) upper end is provided with the barre caulking groove, and barre (17) can be placed on the caulking groove internal fixation when launching.