CN2511591Y - Handle bar mechanism for bicycle or tricycle - Google Patents

Abstract

The utility model provides a novel handle bar steering mechanism for a bicycle or a tricycle, wherein, a front wheel steering shaft 4 and a handle bar rotary shaft 3 are in different planes which cross at an angle delta; when the helical direction of a gear 6 arranged on the handle bar rotary shaft is opposite to that of a gear 5 arranged on the front wheel steering shaft, and when the value of the angle delta is equal to the difference between the helical angle of the helical gear 6 and the helical angle of the helical gear 5, a front wheel and a handle bar 2 are in the same turning direction. The bicycle or tricycle adopts the novel handle bar steering mechanism of the utility model has beautiful streamlined shell and small wind resistance and can shelter a user from wind, rain, sunburn and cold; moreover, the center of gravity of whole bicycle or tricycle is low, which ensures ideal running stability and comfort and labor saving for a rider.

Description

A kind of two take turns or the novel handlebar steering mechanism of three-wheel vehicle

The utility model relates to two takes turns or the handgrip of three-wheel vehicle turns to the field.

As everyone knows, now society goes up all two and takes turns or three-wheel vehicle, comprise rickshaw and self-propelled vehicle, every handgrip turns to, and all is that handgrip is directly installed on the front-wheel steering axle, and this structure makes and turns to the position of handgrip higher, people's seat is also than higher, this just makes that the center of gravity of car load is higher, and stability is bad, and is not easy to install the shell that can keep out wind and rain with stream line pattern moulding.Patent documentation and data at home and abroad do not have discovery that the steering hardware of the utility model case is arranged by retrieval.But three-wheel vehicle is useful bearing circle also, but wheel steering is the cost height not only, and traffic law to the constraint of wheel steering too much, too tight, want to obtain a bearing circle driving license, not only spend a large amount of training times, and also will pay the Renminbi that will reach 3000-4000 unit.

The purpose of this utility model is exactly in order to overcome the shortcoming that existing handgrip turns to technology, handgrip is turned to not only easily to be handled but also safety, can reduce the center of gravity of car load again, make vehicle improve stability, also make motorist's sitting posture become comfortable, and vehicle is installed have the fleetline shell, and can be keeped out wind and rain, improve riving condition.

The utility model is achieved through the following technical solutions: a kind of two take turns or the novel handlebar steering mechanism of three-wheel vehicle, it is made up of institutes such as direction post, front-wheel steering axle, spindle arm upper junction plate, spindle arm lower connecting plate and handgrips, it is characterized in that handgrip 2 is not to be directly installed on the front-wheel steering axle 4, and be mounted on the handgrip S. A. 3, front-wheel steering axle 3 and handgrip S. A. 4 are not in the same plane, but antarafacial intersects an angle of cut.Preceding steering shaft 4 is equipped with helical wheel 5, and handgrip S. A. 3 is equipped with helical wheel 6, and helical wheel 5 and helical wheel 6 are meshed.

The utility model has the advantages that and move behind the operating seat that can make vehicle and it is reduced highly greatly, thereby the center of gravity of car load is reduced greatly, improve the stability of car load greatly, and can make driver's manipulation attitude and sitting posture become more comfortable, also can install to vehicle easily and have the beautiful outer cover of fleetline, outer cover can be semi-enclosed, it also can be the fully enclosed, it can be keeped out wind and rain, summer is sun-proof, the winter protection in winter, actv. improves the riving condition of chaufeur, increases traveling comfort.

The utility model is further described by embodiment below in conjunction with accompanying drawing:

Accompanying drawing 1 is a front view of the present utility model; Fig. 2 is that A among Fig. 1 is to view; Fig. 3 is the aerodynamic housing that is equipped with on the utility model steering hardware vehicle; Fig. 4 is mounted in the moulding shell on the existing handlebar steering mechanism vehicle.

Among the figure, 1 is vehicle frame, and 2 for turning to handgrip, 3 is the handgrip S. A., and 4 is the front-wheel steering axle, and 5 for being installed in the helical wheel on the front-wheel steering axle 4,6 are mounted in the helical wheel on the handgrip S. A. 3, and helical wheel 6 is meshed with helical wheel 5 on being installed in the front-wheel steering axle.Handgrip S. A. 3 is in the different planes with front-wheel steering axle 4, and the two axis antarafacial intersects the δ angle.The 7th, down turn to connecting panel, the 8th, the direction post that is connected mutually with vehicle frame 1, the 9th, on turn to connecting panel.According to theory of machines as can be known, external meshing tooth to the driving of parallel axes, no matter be straight-tooth or helical teeth, its hand of rotation is opposite, this does not meet the requirement that handgrip turns to, and for helical wheel, the available method that changes two meshing spiral gear helical angle directions and helical angle magnitude numerical value respectively reaches and two helical wheels is rotated in the same way or the opposite sense rotation, for handlebar steering mechanism shown in Figure 1, front-wheel steering axle 4 intersects the δ angle with handgrip S. A. 3 antarafacials, the δ angle be according to the ergonomics principle by actual operational position the design-calculated best angle, when the hand of spiral of the hand of spiral of helical wheel 6 and helical wheel 5 is opposite, and when the helical angle numerical value that the magnitude numerical value of δ equals helical wheel 6 deducts the helical angle numerical value of helical wheel 5, the hand of rotation of front-wheel steering axle will be identical with the hand of rotation of handgrip S. A., and this is just meeting the requirement of handlebar steering mechanism.

Because design the time is that to make helical wheel 6 and helical wheel 5 be to rotate in the same way, therefore when needs turn to, the driver's operation handgrip rotates to the left or to the right, at this moment helical wheel 6 is just to conter clockwise or along the rotation of inserting needle direction, and the helical wheel 5 and 6 that is meshed with helical wheel 6 rotates in the same way, thereby under the effect that turns to connecting panel 9 and 8 up and down, front-wheel will turn to around front-wheel steering axle 4 to the left or to the right in company with handgrip 2.Fig. 3 and Fig. 4 draw in 1: 15 ratio according to ergonomics principle and practical operation attitude, compare by two figure and to be not difficult to find out, use the utility model steering hardware, just can make the car load external form have beautiful stream line pattern, can significantly reduce the resistance in travelling, and height of gravitational center is more much lower than the vehicle that uses conventional steering mechanism, and therefore stability is high.

Claims (2)

1, a kind of two takes turns or the novel handlebar steering mechanism of three-wheel vehicle, form by institutes such as direction post, front-wheel steering axle, spindle arm upper junction plate, spindle arm lower connecting plate and handgrips, it is characterized in that handgrip (2) is not to be directly installed on the front-wheel steering axle (4), and be mounted on the handgrip S. A. (3), front-wheel steering axle (3) and handgrip S. A. (4) and antarafacial intersect an angle of cut.

2, according to claim 1 a kind of two take turns or the novel handlebar steering mechanism of three-wheel vehicle, it is characterized in that front-wheel steering axle (4) is equipped with helical wheel (5), handgrip S. A. (3) is equipped with helical wheel (6), and helical wheel (5) and helical wheel (6) are meshing with each other.

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