CN2354853Y - Foldable bicycle with drive on front wheel - Google Patents

Abstract

The utility model relates to a collapsible bicycle with front wheel drive, which is composed of a front and a back wheels, a corner bracket supporting the front and the back wheels, a driving device, a steering device, etc., wherein, the corner bracket is composed of bicycle beam forming a curved shape and a corneous front fork. The utility model has collapsible property and light weight, and is convenient in use for people living in high buildings and tourists.

Description

The f-w-d folding bicycle

A kind of bicycle specially refers to a kind of light Collapsible bicycle.

Usually the structure of bicycle is, former and later two rollers with diameter are arranged, front fork of front-wheel axis supporting, support a subframe by hind axle and front fork, handle also is housed on the front fork, and foot-operated axle is contained in the suitable position of vehicle frame, and actuating device is two sprocket wheels that are located on hind axle and the pedal spindle, and, drive trailing wheel bicycle is advanced by two sprocket wheels of chain connection.This bicycle is very convenient to use, but blemish in an otherwise perfect thing is, because vehicle frame is fixed, it is big to occupy the space, carries inconvenience, wants tourism or pushes away band with oneself when going out, and is then impossible.In addition, what stay in high-rise building will carry bicycle upstairs, feels very difficult, and loses the bicycle phenomenon and happen occasionally.Therefore, a kind of light bike easy to carry is that people extremely wish.

The purpose of this utility model then is to provide a kind of weight lighter, can fold portable f-w-d folding bicycle.

For achieving the above object, scheme of the present utility model is: a kind of f-w-d folding bicycle, by front and back wheel, support the corner bracket of front and back wheel, formation such as actuating device and steering hardware, particularly corner bracket comprises the moveable cart thick stick of a band arc, the one end is connected with the end, one side of a dihedral front fork, the end of front fork another side and arc car thick stick and that the beam barrel of actuating device is installed is affixed, described arc car thick stick upper end is affixed by a securing device and moveable cart thick stick, steering hardware is equipped with in its end that makes progress, and the other end of moveable cart thick stick is connected with the beam barrel that hind axle is installed.

Adopt the structure of such scheme, can realize the purpose of this utility model.

Below in conjunction with diagram and embodiment scheme is described in more detail.

Fig. 1 is the front view of f-w-d folding bicycle;

Fig. 2 is the folded state diagram of f-w-d folding bicycle;

Fig. 3 is the collapsible corner bracket front view of f-w-d folding bicycle;

Fig. 4 is that A among Fig. 3 is to view;

Fig. 5 is that B among Fig. 3 is to view;

Fig. 6 is the collapsible seat cushion front view of f-w-d folding bicycle;

Fig. 7 is a f-w-d folding bicycle steering hardware front view;

Fig. 8 is the steering hardware folded state diagram;

A specific embodiment as described in Figure 1.Front-wheel (1) and less double rear wheel (2) are arranged and support corner bracket, actuating device (3) and the steering hardware formations such as (4) of front and back wheel.Different with Regular Bicycle is that described actuating device directly drives front-wheel and rotates.Described actuating device (3) has adopted sprocket wheel and the chain gear form in the known technology, so that make the driving system of this programme embodiment reliable, and owing to the normalisation of part reduces cost.

As the corner bracket detail drawing of Fig. 3 for the support front and back wheel.Described corner bracket comprises the dual-active motor-car thick stick (5) of a band arc, the one end is connected with the end, one side of a dihedral front fork (6), captive joint with the beam barrel (8) of an arc car thick stick (7) and installation actuating device (3) in the end of front fork (6) another side, described arc car thick stick (7) upper end is affixed by a securing device (9) and moveable cart thick stick (5), steering hardware (4) is equipped with in its end that makes progress, the other end of moveable cart thick stick (5) is connected with the beam barrel (10) that hind axle is installed, pass through said structure, described spider makes foldable, is easy to carry especially.

In above-mentioned structure, the beam barrel (8) of actuating device and the other end of moveable cart thick stick (5) are installed are connected with pull bar (11), one end of pull bar (11) is a hollow, telescopic movable shelf (12) are installed, vertically install with the hind axle beam barrel (10) that moveable cart thick stick (5) one ends are fixing, there is a vertical axes to be mated, vertical axes is fixed on the middle part of a horizontal shaft, constitute the trailing wheel support system, the end of horizontal shaft respectively is fixed with an inclined to one side ear (13), two steamboats of trailing wheel (2) are installed on the axle on the inclined to one side ear (13), make the trailing wheel can flexible motion.

In above-mentioned corner bracket, the bight Y-piece of dihedral front fork (6) supports the rotating shaft of front-wheel (1), a limit (14) that forms dihedral front fork (6) is identical with the crooked radian of moveable cart thick stick (5), couple together a part that forms a circle, another limit (15) is a double joint, for not influencing foot-operated rotation, an end width unanimity of the close beam barrel (8) of limit (15), cross outer the omiting of foot-operated rotating range and outwards magnify, from Fig. 4, see comparatively clearly.

The front end of arc car thick stick (7) is equipped with steering hardware (4), steering hardware (4) is made up of a cross bar (16) and a faucet lever (17) that becomes " T " font to install with it, the crooked radian of faucet lever (17) is identical with arc car thick stick (7), so that revolving from the installation site, faucet lever (17) can insert the arc car thick stick (7) after turning to another direction, under the normal position, the junction nut fastening of faucet lever (17) and arc car thick stick (7).Two backguys (18) are housed on the handlebar cross bar (16), backguy (18) is passed moveable cart thick stick (5) and is passed to the steering column jacket of trailing wheel, and be connected on the fixing yoke (19) of rear axle and vertical beam barrel (10), the brake cable of front and back wheel and brake handle (20), be contained on the handlebar cross bar, the other end of two brake cable joins with the brake of front and back wheel respectively, handlebar (21) is equipped with at handlebar cross bar (16) two ends, bicycle bell is equipped with in the centre, has so just formed foldable tap, handlebar, steering hardware and brake system etc.

Be illustrated in figure 6 as be installed in moveable cart thick stick (5) but on the folding cushion, two with moveable cart thick stick (5) arc with the cushion strut (22) of radius and adjusting strut (23) movable hinge joint at the middle part with arc, its end is connected with moveable cart thick stick (5) respectively, one end of cushion strut (22) has several height adjustment holes, with a screw fit of passing the hole with fixing height device, an end of regulating strut (23) is affixed by bolt (24) and car thick stick (5), to form the cushion of scalable height.Cushion makes with soft material, the cushion bottom is provided with a chute (25), when bolt (24) when screwing, cushion becomes horizontality, bolt (24) is when unclamping, the upper end of regulating strut (23) can slide into the other end from an end of chute (25), cushion and three struts just backward folding become state near the camber vehicle frame.

Adopt said structure, the bicycle folding can be become state as shown in Figure 2,, no longer repeat here owing to the folding state of each parts had been described when introducing structure.Through the folding as Fig. 2, the shared volume of whole bicycle is very little, and weight is also very light, has just reached the purpose of this utility model.

In sum, the utility model is an actv..

Claims (10)

1, the f-w-d folding bicycle, by front and back wheel, support the corner bracket of front and back wheel, formation such as actuating device and steering hardware, it is characterized in that: described corner bracket comprises the moveable cart thick stick (5) of a band arc, the one end is connected with the end, one side of a dihedral front fork (6), the beam barrel (8) of the end of front fork (6) another side (15) and an arc car thick stick (7) and installation actuating device (3) is affixed, described arc car thick stick (7) upper end is affixed by a securing device and moveable cart thick stick (5), steering hardware (4) is equipped with in its end that makes progress, and the other end of moveable cart thick stick (5) is connected with the beam barrel (10) that hind axle is installed.

2, f-w-d folding bicycle according to claim 1 is characterized in that: the beam barrel (8) of actuating device and the other end of moveable cart thick stick (5) are installed are connected with pull bar (11).

3, f-w-d folding bicycle according to claim 1, it is characterized in that: beam barrel (10) is for vertically installing, there is a vertical axes to be mated, vertical axes is fixed on the middle part of a horizontal shaft, the end of horizontal shaft respectively is fixed with an inclined to one side ear (13), two steamboats of trailing wheel (2) be installed on the inclined to one side ear (13) the axle on.

4, f-w-d folding bicycle according to claim 1 is characterized in that: moveable cart thick stick (5) is identical with the crooked radian on a limit (14) of dihedral front fork (6).

5, f-w-d folding bicycle according to claim 1 is characterized in that: the limit (15) of dihedral front fork (6) is a double joint, and limit (15) are crossed outer the omiting of foot-operated rotating range and outwards magnified near an end width unanimity of beam barrel (8).

6, f-w-d folding bicycle according to claim 1, it is characterized in that: moveable cart thick stick (5) but folding cushion that go up to install, comprise two with moveable cart thick stick (5) with the cushion strut (22) of arc and adjusting strut (23) movable hinge joint at the middle part with arc, one end of cushion strut (22) has several adjustment holes, cooperate with a bolt that passes the hole, an end and the car thick stick (5) of regulating strut (23) are affixed, the other end of bar (22) and (23) all with cushion under chute (25) flexible connection.

7, f-w-d folding bicycle according to claim 1 is characterized in that: described actuating device is sprocket wheel and chain strips, rotates by the foot-operated front-wheel that directly drives.

8, f-w-d folding bicycle according to claim 1 is characterized in that: beam barrel (8) is connected with pull bar (11) with the other end of moveable cart thick stick (5), and an end of pull bar (11) is a hollow, and telescopic movable shelf (12) are installed.

9, f-w-d folding bicycle according to claim 1, it is characterized in that: described steering hardware (4) comprises a cross bar (16) and faucet lever (a 17) composition that becomes " T " font to install with it, the crooked radian of faucet lever (17) is identical with Che Gang (7), two backguys (18) are housed on the handlebar cross bar (16), backguy (18) is passed moveable cart thick stick (5) and is passed to the steering column jacket of trailing wheel, and is connected on the fixing yoke (19) of rear axle and vertical beam barrel (10).

10, f-w-d folding bicycle according to claim 1 is characterized in that: brake handle (20) is contained on the handlebar cross bar, and the other end of two brake cable joins with the brake of front and back wheel respectively.

Images