CN2528699Y

CN2528699Y - Collapsible bicycle

Info

Publication number: CN2528699Y
Application number: CN 02218867
Authority: CN
Inventors: 陈定兴
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-06
Filing date: 2002-02-06
Publication date: 2003-01-01
Anticipated expiration: 2012-02-06

Abstract

The utility model discloses a bicycle for recreation and sports that includes a handle, a front fork, a front wheel, a frame and a back wheel; wherein, a standpipe is arranged under the handle to be hinged with the front fork and fixed with a fast detachable joint; the lower end of the standpipe is hinged with the front wheel through a fork rod; the frame includes a horizontal section and a vertical rod section; wherein, the front end of the horizontal section is firmly connected with the side of the front fork, the upper end of the vertical rod section is firmly provided with a flexible seat of an adjustable height through another fast detachable joint; the upper end of the vertical rod section and the back end of the horizontal section extend to have support rods of and are hinged with the back wheel at the ends of the support rods; the horizontal section of the frame is also provided with a footplate and a chain wheel for driving the back wheel through a chain; the handle is in a round tube shape or a disc shape; when in use, the handle turns for a certain angle, and the front wheel also turns for the certain angle synchronously, thus the operation and controlling is easy; besides, the outer diameter of the back wheel is larger than that of the front wheel, thus the gravity center is inclined forward and riding can be more stable.

Description

The outdoor activity bicycle

Technical field

The utility model relates to a kind of bicycle, refers to a kind of outdoor activity bicycle of miniaturization especially.

Background technology

Recreation is recently more and more paid attention to, but recreation needs activity space, and population concentration is in the urban result, be to cause activity space rare more and narrow and small, people often will be with equipment to look for the space everywhere for outdoor activity, therefore, for equipment being easy to carry or receiving and keeping, be designed to collapsible equipment and miniaturization, problem is can produce following contradiction after the miniaturization:

It is big that existing bicycle is front-wheel and trailing wheel etc., or size is extremely close, and improve because of volume-diminished causes its five-way pipe, seat cushion improves retreats center of gravity, and shakiness is also unfavorable when causing rider controls, in addition, front-wheel and trailing wheel etc. are big, or size is extremely close, causes the profile of folding back whole locomotive body to present one than the fitfull form, both has been unfavorable for that packing also was difficult to save space.

In addition, the handle of existing bicycle is crossbar type, and user's both hands are respectively held cross bar one and brought in operation, can't throw into question in the vehicle of normal size, interferes but can allow user's both hands control and produce at compact car.

The utility model content

The purpose of this utility model is to provide a kind of miniaturization rear to easily controlling and ride outdoor activity bicycle more stably.

For achieving the above object, solution of the present utility model is:

The outdoor activity bicycle, comprise handle, front fork, front-wheel, vehicle frame and trailing wheel, wherein handle is divided into a folding vertical tube, vertical tube is worn pivot and is fixed in front fork and with a quick detach joint, the vertical tube lower end articulates front-wheel with a fork arm, vehicle frame comprises horizontal segment and montant section, the affixed front fork of horizontal segment front end side, montant section upper end sets firmly the seat cushion of highly scalable adjustment with another quick detach joint, each extends the strut bar that articulates trailing wheel with its end montant section upper end and horizontal segment rear end, be provided with pedal and sprocket wheel on the horizontal segment of vehicle frame in addition, its handle is round tubular or discoid.

Described outdoor activity bicycle, its trailing wheel external diameter is big than front-wheel.

After adopting said structure, when using, the user is with how many angles of hand swing handle, and how many angles front-wheel must rotate synchronously, and its correspondence is very direct, therefore, the user is than the angle variation that is easier to grasp direction, so easier manipulation and control, and the trailing wheel external diameter is big than front-wheel, and allow center of gravity lean forward, make when riding more steady.

Description of drawings

Fig. 1 is the lateral plan of the utility model embodiment;

Fig. 2 is the top view of the utility model embodiment in the bearing circle operation;

Fig. 3 is the folding figure of the utility model embodiment.

The specific embodiment

As shown in Figure 1, the utility model embodiment comprises handle 1, front fork 2, front-wheel 3, vehicle frame 4 and trailing wheel 5, wherein, handle 1 is round tubular or discoid, and handle extends a vertical tube 11 for 1 time to penetrate in front fork 2 and can be pivoted relative to each other, and with fixing flexible (the folding non-this case emphasis of structure partly of vertical tube 11 of a quick detach joint 12, do not give unnecessary details), vertical tube 11 lower ends of handle 1 articulate front-wheel 3 with a fork arm 13, vehicle frame 4 comprises horizontal segment 41 and montant section 42, and the affixed front fork of horizontal segment 41 front ends 2 sides, montant section 42 upper ends set firmly seat cushion 43 with another quick detach joint 49, the highly scalable adjustment of seat cushion 43, strut bar 44 is respectively extended in montant section 42 upper ends and horizontal segment 41 rear ends, 45, and jointly in

strut bar

44,45 ends articulate trailing wheel 5, are provided with pedal 46 and sprocket wheel 47 on the horizontal segment 41 of vehicle frame 4 in addition so that drive trailing wheel 5 with chain 48, trailing wheel 5 external diameters are big than front-wheel 3, and allow center of gravity lean forward.

Steering manipulation as shown in Figure 2, when the user with hand swing handle 1 how many angles, how many angles front-wheel 3 must rotate synchronously, its correspondence is very direct, and therefore, the user is than the angle variation that is easier to grasp direction, compare easier certainly manipulation and control with the crossbar type handle of commonly using.

As shown in Figure 3, when amounting to when harvesting, the quick detach joint 12 of handle 1 is unclamped, handle 1 can be amounted to save space.

Claims

1, the outdoor activity bicycle, comprise handle, front fork, front-wheel, vehicle frame and trailing wheel, wherein handle is divided into a folding vertical tube, vertical tube is worn pivot and is fixed in front fork and with a quick detach joint, the vertical tube lower end articulates front-wheel with a fork arm, vehicle frame comprises horizontal segment and montant section, the affixed front fork of horizontal segment front end side, montant section upper end sets firmly the seat cushion of highly scalable adjustment with another quick detach joint, each extends the strut bar that articulates trailing wheel with its end montant section upper end and horizontal segment rear end, be provided with pedal and sprocket wheel on the horizontal segment of vehicle frame in addition, it is characterized in that: handle is round tubular or discoid.

2, outdoor activity bicycle as claimed in claim 1, it is characterized in that: the trailing wheel external diameter is big than front-wheel.