CN2068075U

CN2068075U - Non-handlebar tricycle

Info

Publication number: CN2068075U
Application number: CN90205761U
Authority: CN
Inventors: 魏品山
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-04-28
Filing date: 1990-04-28
Publication date: 1990-12-26

Abstract

The utility model relates to a non-handlebar tricycle. The utility model is characterized in that the handlebars (faucets) of a traditional bicycle are cancelled, a triangular framing has the functions of driving, steering and braking replaces an original steering mechanism, and the triangular framing arranged under a front tube is composed of the connection of a front fork, a hind fork and a reinforced bar. While steering, the triangular framing rotates around the line of the central axis of the front tube in order to drive a driving wheel to rotate; the utility model has only one driving wheel or two driving wheels, and the torque of the driven wheel is adjustable. The utility model which can be used as a move-assistant device is especially suitable for a disabled person without two arms, and the steering is realized by the control of the feet of a rider while ridding.

Description

Non-handlebar tricycle

The utility model belongs to bicycle and man, be three wheeled nothings bicycle, main for no arm disabled person as walking-replacing tool.

In existing bicycle and man (be two take turns or three-wheel), its steering hardware all is that both hands by the people go to handle, with the handgrip of band stopping brake lock for seeing more.This bicycle can't use the disabled person of no arm.

The purpose of this utility model is to provide a kind of tricycle that does not have common handgrip (turning to tap), its steering hardware and driving, braking two mechanisms are combined on the triangular framing three-in-onely, and the bicyclist relies on both feet to handle turning to and braking of car.

Task of the present utility model is achieved in that

The handle type of pipe top turns to tap before the cancellation standard bicycle, on the front fork below the preceding pipe, add a lower fork and a stirrup, leg-of-mutton framework of the affixed one-tenth of three, be respectively equipped with driving on this framework, brake, turn to three great institutions, the central axis that forms a former pipe is the three-in-one mechanism of steer axis.

Be described in detail below in conjunction with accompanying drawing.

Fig. 1 is a front view of the present utility model,

Fig. 2 is a birds-eye view of the present utility model,

Fig. 3 is a left view of the present utility model,

Fig. 4 is the front view of the rear-mounted scheme of the utility model drive wheel,

Fig. 5 is the front elevation of non expandable type scheme own,

Fig. 6 is not birds-eye view of retractable type scheme itself.

As seen, the utility model has fully phased out the tap that turns to of standard bicycle handle type in the scheme that is reflected from Fig. 1 to Fig. 4.The substitute is the triangular framing of three-in-one (drive, turn to, brake), it is positioned at the bottom of bicycle front tube (1), when turning to, whole triangular framing under the manipulation of both feet still before the central axis of pipe (1) be that steer axis rotates, thereby make the bicyclist realize turning to of car for hand with pin.

Described three-in-one framework is respectively by front fork (2), lower fork (3) and a stirrup (4) three limits as triangular framing, and the pivot center of this triangular framing is exactly the line of centers of preceding pipe (1).Front fork (2) and lower fork (3) interface point just in time be exactly drive wheel (5) the center, be the wheel shaft place.Lower fork (3) just in time is the center of hinge wheel in the driver train (8) with the interface point of stirrup (4), i.e. the residing position of axis.Stirrup (4) is the shoulder position of front fork (2) with the interface point of front fork (2).

Altogether combination turns to, drives and brake three great institutions on described three-in-one triangular framing, they be constructed as follows:

A, described driver train include following parts: at first be the axis parts that have left and right sides crank (7) and left and right sides pedal (6), hinge wheel parts such as (8) as the transmission A end, they are installed on the vehicle frame center tap by the axis rod; Next be as the minor sprocket of transmission passive part (10), it is fixed on chewing of front fork (2) coaxially by the axle rod parts of drive wheel (5), minor sprocket (10) in fact also is the part (hereinafter can mention) in the backpedalling brake mechanism, between above-mentioned hinge wheel (8) and minor sprocket (10), be connected with chain (11), constitute chain drive, drive wheel (5) is positioned at the front fork (2) of preceding pipe (1) below.

B, described steering hardware include following parts: its main body is one to be the triangular framing of the handling maneuver of widely different shaft axis with pipe (1) line of centers before doing only, its pivot inserts vertical tube of front fork in the preceding pipe (1) (do in the accompanying drawing analyse and observe, invisible) exactly, when the bicyclist imposes transverse force perpendicular to frame to the middle shaft part position with the both feet operation, whole triangular framing do before pipe (1) line of centers when being the rotation of widely different shaft axis, front fork (2) together produce widely different commentaries on classics with drive wheel (5), thereby the turning to of realization bicycle.

C, described stop mechanism adopt the backpedalling brake mechanism identical with standard bicycle, it is installed on the shaft core position of drive wheel (5), it is maintained fixed by backpedalling brake support plate (9) and front fork (2), just can finish as long as pedal and crank are reversed an angle, whole brake process backward when the bicyclist needs glancing impact.When not needing to brake, as long as pedal just passable after stopping.The minor sprocket of chain drive (10) also is the part in the backpedalling brake mechanism.

In sum, principal character of the present utility model is the triangle frame frame mechanism of described this three-in-one (drive, turn to, brake).Car load has three wheels, independent one is drive wheel (5), two followers are fixed on the axletree (12), transverse tube on the vehicle frame between drive wheel (5) and the flower wheel (13) (14) can be a fixed pipe (15) (16) (as shown in Figure 5), can also make the hollow square tube structure (as Fig. 1, shown in Figure 4) of telescopic.The adjustment of wheelspan is performed such in telescopic scheme: as long as unclamp the clamping collar (18) (19) of vehicle frame fixed sleeving (17) two ends of flower wheel (13) (14), just can go up fixed sleeving (17) at vehicle frame transverse tube (20) and move, when moving on to suitable wheelspan position, again clamping collar (18) (19) is locked, like this, wheelspan has just regulated.

Also there are removable and not removable two kinds of schemes saddle of the present utility model (21) position.Shown its saddle of scheme (21) of Fig. 1, Fig. 4 is movably, as long as unclamp the clamping collar (23) (24) of saddle (21) fixed sleeving (22) two ends, just saddle fixation sleeve pipe (22) can be gone up at vehicle frame transverse tube (20) and be moved, when moving to correct position, lock clamping collar (23) (24) again, so just finished the adjusting of saddle (21) position.The direction of saddle (22) also can be regulated.

Nothing of the present utility model tricycle as long as the direction Rotate 180 of saddle (21) ° just can be realized the mode of riding that drive wheel is rear-mounted.At this moment, as shown in Figure 4, drive wheel (5) in the back and two driven wheels (13) (14) preceding, the chain drive-belt chain wheel driving mechanism should be arranged in and an original opposite side, promptly with the opposite side of drive wheel (5) forward type scheme.

Nothing of the present utility model is the Three-wheel type bicycle walking-replacing tool that loses person with double disabled arms, also can be used as the perambulator of entertainment for children, can also develop into athletic equipments such as ice hockey, polo, basketball, playing method novelty, joyful to it.

Claims

1, a kind of nothing is three wheeled bicycles, it includes wheel, vehicle frame, driver train, steering hardware and stop mechanism, it is characterized in that: have one to drive, turn to, brake three-in-one triangular framing in the below of preceding pipe (1), front fork (2), lower fork (3) and stirrup (4) constitute three limits of this triangular framing respectively, the axle rod of drive wheel (5) is fixed on front fork (2) chewing bottom, be provided with driving on this triangular framing, brake, turn to three great institutions, it is constructed as follows:

A, described driver train include the axis parts of band left and right sides pedal (6), left and right sides crank (7), hinge wheel (8), and they are installed in by the axis rod on the center tap of vehicle frame triangular framing cantilever end,

B, described stop mechanism include the backpedalling brake mechanism that is fixed on drive wheel (5) shaft core position, and it is maintained fixed by backpedalling brake support plate (9) and front fork (2), and minor sprocket (10) is combined integrated with backpedalling brake mechanism,

Pipe (1) line of centers was the triangular framing of widely different shaft axis before c, described steering hardware included, and constituted pivot structure in the pipe (1) before vertical tube of front fork inserts, and drive wheel (5) is in the same plane substantially rigidly with described triangular framing.

2, nothing as claimed in claim 1 is characterized in that three wheeled bicycles, and described drive wheel (5) is one, and it is positioned at the below of preceding pipe (1), and described flower wheel (13) (14) is two, by the coaxial connection of an axletree (12).

3, nothing as claimed in claim 1 is three wheeled bicycles, it is characterized in that, the vehicle frame transverse tube (20) that connects drive wheel (5) and flower wheel (13) (14) is a hollow square tube, can be with a flower wheel vehicle frame fixed sleeving (17) and saddle fixation sleeve pipe (22) on it, two ports of each fixed sleeving are provided with clamping collar with relatively moving.

4, as claim 1 or 3 described nothings three wheeled bicycles, it is characterized in that it is any side on boundary that chain at grade, hinge wheel and minor sprocket can be arranged in described transverse tube (20).

5, nothing as claimed in claim 1 is characterized in that three wheeled bicycles, and described vehicle frame transverse tube is the fixed type pipe (15) (16) that (25) Joint is managed in two and preceding pipe (1) and back.