CN2085345U - Portable safety stepless variable speed bicycle - Google Patents

Abstract

The utility model relates to a new-pattern bicycle, which is suitable for metropolitan area characterized in congested traffic, high story, tight housing and inconvenient vehicle parking. The bicycle device is composed of a pedal lever type mechanism with stepless speed change, a running mechanism and a sitting chair type steering mechanism of an upright bicycle tap. In addition, a bicycle frame can transversely be folded, a large wheel is driven ahead and a guiding trundle is arranged at the back, and the sitting chair type steering mechanism of the upright bicycle tap is provided with a backrest bicycle. The device is characterized in peculiar body and style, comfortable riding, safety, folding and convenient carrying.

Description

Portable safety stepless variable speed bicycle

The present invention relates to the high lever bicycle with stepless speed change device of a kind of portable riding safety.

Because present bicycle is to adopt fixed type triangle steel vehicle frame, the U type handlebar that front and back wheel is all equally big, so volume is big, easy-to-collection not, more not portable generation, the present high floor that is far from suitable, the situation that the tight parking area of living space increases day by day.Particularly select the chain wheel mode for use, in order to make footboard, when stepping, do not collide with the ground thing, have no alternative but the center-of-gravity position of riding be improved so just formed unstable disadvantage, the posture of in addition riding designs to such an extent that do not conform with the ergonomic hygiene, and has formed the bicycle pathogeny.But as bicycle, being again in the human mode of transportation, is most economical practical tool.It is than also low 63.1 kilocalories of walking power consumptions.Therefore necessity of improving bicycle arranged, and the present invention makes great efforts to this direction.

The purpose of this invention is to provide a kind ofly, in portable generation, easy-to-collection, low center of gravity, riding safety height can be avoided the bicycle disease, and the lever of the mountain highway of conveniently riding, the bicycle with stepless speed change device.

The object of the present invention is achieved like this.

By traveling gear, lever stepless change driver train, compositions such as the upright handlebar steering hardware of car chair form.

1. traveling gear is reached a little trailing wheel of making steering wheel and is formed by folding vehicle frame and a big front-wheel of doing driving.

2. lever stepless change driver train, have speed change with flexible slide cartridge lever footboard by generation about two, two of the tooth bars that " flying " rotates on the pulling axletree, two " flying " formed about holder was held on two on pulley that tooth bar slides and the axletree.The lever stepless change is to move length by the flexible slide cartridge in the resistance arm of lever, and shortening realizes.When it extended, arc that resistance arm is at this moment drawn was than just much longer at resistance arm arc in short-term, and to promote all numbers that " flying " change also just many for the tooth bar on it so, " fly " for moving wheel also several circles of just many commentaries on classics, otherwise, just change several circles less, change with few changes more, and it is many that its speed, its moment just differ.Slide cartridge in flexible speed change tube is a cable wire pulling speed change, is resetted by the top spring, and when moving suitable position to by the locking of the fixture block on the speed change slide cartridge, its fixture block is by another cable wire control.Speed change rope controller and kayser controller are beneficial to and tighten the back speed change of unblanking after making things convenient for speed change on same position.

3. the upright handlebar steering hardware of car chair form is formed by the right steering signaling handle of car seat cvt controller with by the left handlebar handle of Brake lever.The vertical type handlebar is the upright handle on seat two handrails actually, about two pull bars are arranged, the crossbeam on the direct pull steering wheel shaft under the upright handle.When left-handed turning, spur left handle toward direction in one's arms, owing to be lever-type, at this moment, the other end of lever is moving to reversing sense, the crossbeam that just in time spurs on the steering wheel of back turns left, so with regard to left-handed turning.Turn right in like manner.

4. the lock pin under the car seat, its structure of device that the folding seat of the automatic start or stop of generation spring arranged down is as shown in Figure 4: when seat back was folded to cushion, the lock pin cushion under left because of chair back frame, leaned on the strength of spring to throw off chair frame strutbeam voluntarily, at this moment, whole seat is drawn close snap as shown in Figure 2.

5. the latch buckle device on the vehicle frame main beam, its structure is as shown in Figure 5: on the vehicle frame main beam, be loose-leaf on one side, use when folding, the version of the latch button form of vehicle frame another side as Fig. 5 uses is to utilize its tension and firm vehicle frame main beam, when opening, be unlikely to loosening rocking and influence and ride.

Concrete structure of the present invention is provided by following examples and accompanying drawing.

Fig. 1 is a front view of the present invention.

Fig. 2 is a lateral plan of the present invention.

Fig. 3 is a mansion of the present invention view.

Fig. 4 is the folding seat automatic lock mechanism map of start or stop under the car seat.

Fig. 5 is the latch deduction composition of fixed fold car seat.

Fig. 6 is the scheme drawing of flexible slide cartridge speed change of stepless change and fixture block latching device.

Fig. 7 is that vertical type handlebar steering hardware turns to scheme drawing.

Below in conjunction with concrete device details and the service condition of Fig. 1-7 explanation according to the present invention's proposition

As Fig. 1: this installs by traveling gear; Adhesion wheel (7), rear be to steamboat (11), folding vehicle frame (4).

Lever stepless change driver train: stepless change control handle (1B), footboard (3), lever moving arm (5) lever resistance arm (flexible slide cartridge) (8), tooth bar (9) flies (6), drives front-wheel (7).

The upright handlebar steering hardware of car chair form; By car seat (14), vertical type handlebar (2), brake control handle (1A) turns to drag-line (17), and the rear turns to crossbeam (16) to steamboat (11), and pull handle bar (18) is formed.

As Fig. 2: be the lateral plan behind this folding device; (12) be the figure that footboard is rolled well, (13) are the figures after car seat and upright handlebar fold.

As Fig. 3: the mansion view of this device: turn to drag-line (17), turn to crossbeam (16).

As Fig. 4: the automatic lock pin mechanism scheme drawing under this device seat: the lockhole (19) on the car cushion support, car seat back (21), lock pin (22).

As Fig. 5: the latch buckle device scheme drawing on the vehicle frame main beam: latch button (23) car owner's beam (24), loose-leaf (25).

As Fig. 6: the scheme drawing of flexible slide cartridge speed change of stepless change and fixture block latching device: the stepless change slide cartridge control handle (1B) that stretches, the cam fixture block control handle (26) of the flexible slide cartridge of locking, fixture block locked position (26A), the position that fixture block is unblanked (26B), the control slide cartridge is flexible with cable wire (27), control cam fixture block locking cable wire (28), pulley (29), top spring (30), tooth bar (9), slide cartridge (31), locking cam fixture block (32).

As Fig. 7: vertical type handlebar steering hardware turns to scheme drawing: turn to drag-line (17) track adjusting wheel to turn to crossbeam (16), track adjusting wheel (11).

During use, in car bag knapsack, take out this device, hold big wheel (7), the vehicle frame main beam (4) on the steamboat (11) is laterally opened, and buckle latch button (25) and locking on the girder, make traveling gear in running order; Mention the car seat again, rise chair back, at this moment, the automatic lock pin work under the seat makes seat, and backrest and vehicle body form an integral body, and cocked again left and right sides handle makes this device be in mode of operation fully; Seemingly lean against on the car chair (14) as sitting sofa then, both hands are held left handle (1A) and the right handle (1B) of stepless change that the vertical type handlebar has brake handle, and two elbows ride on the ancon of the left and right sides simultaneously; During starting, step lever footboard (3) propulsive effort with a leg and fly (6) and bull wheel (7) rotation, make car begin to slide, then use another leg again by lever (5) and flexible slide cartridge (8) promotion tooth bar (9), exchange steps like this, makes garage more than.

Handling cable wire (27) pulling slide cartridge (8) retraction that the flexible slide cartridge of stepless change control handle (1B) control is used, just rise and slow down, increase the effect of moment, is to stretch slide cartridge by the top of the top spring (30) in the tube to realize when speedup.The position that retraction is stretched on the top arbitrarily, its speed also is arbitrarily.

In speed change, handle the cam fixture block handle (26) of the flexible slide cartridge of locking, handle is pulled to the cable wire (28) of fixture block lockset position of coupler (26B) by control cam fixture block and is unclamped the slide cartridge of pinning along pulley (29) rotating cam fixture block (32), make it be in free state, after the speed change, handle pushes up fixture block locked position (26A) cam fixture block backward rotation locking and blocks slide cartridge and made its slippage not.

Turn left as need, to reach, pulling drag-line (17) makes and turns to crossbeam (16) rotation direction wheel (11) to turn to upright handle (2) the pull handle bar (18) in the left side of direction pulling in one's arms.Right steering in like manner turns to opposite with a left side.

With finishing, as long as with handgrip live front wheel house (7) chair back (21) to cushion direction turn back (among Fig. 1 shown in (15) dotted line), at this moment the automatic lock pin (22) under the chair leaves owing to chair back, automatically throw off lockhole (19) on the chair support by the strength of spring (20), but at this moment whole seat side-foldable, pushing latch button (23) on the girder (4) simultaneously aside collapses girder vehicle frame and steamboat and together, again the left and right sides handle invagination and the cushion of vertical type handlebar, backrest and neat after pack in the car bag knapsack, can carry on the back, can carry, portable, easily hide.

Claims (4)

1, the safe bicycle with stepless speed change of a kind of portable height is characterized in that by traveling gear, the upright handlebar steering hardware of car chair form, lever stepless change driver train.

2, the safe bicycle with stepless speed change of portable height according to claim 1, the mechanism that it is characterized in that the driving of lever stepless change connects lever (5) by stretcher (3), and there is flexible speed change tube (8) its lower end, pulling tooth bar (9), the car of meshing axletree flies (6).

3, according to the safe bicycle with stepless speed change of the described portable height of claim 2, it is characterized in that having in the flexible speed change tube (3) through cable wire pulling speed change, stretch by top spring top and reset, and be with the speed change slide cartridge after the cam fixture block locking shift position.

4, device according to claim 1, it is characterized in that traveling gear by having preceding big wheel (7) and the back trundle (11) that play the guiding role that drives function and can laterally foldedly closing up, the vehicle frame (4) that has latch button (23) to be provided with after opening is formed.