CN2048047U - Portable tricycle - Google Patents

Abstract

The utility model relates to a light, fast and flexible tricycle, which adopts a frame style vehicle frame which has low center of gravity and integrally avoids vibration. The force which guides forwards is reasonable. Double riders sit side by side. Two pairs of pedals are arranged. One person or two persons can lie, sit and pedal. After the driving force is distributed by an intermediary shaft, the driving force can drive two back wheels simultaneously. The double wheels brake simultaneously. The utility model has the advantages of safe driving, stability, light and fast driving, effective braking and flexible turning. The utility model can be used for general transportation, and is suitable for middle aged men and old men to do body-building, exercise or long distance travelling, etc.

Description

Portable tricycle

The utility model belongs to the land three-wheel transport facility that travels, particularly the three-wheel vehicle of two-wheel driving.

Existing manual tricycle, such as flat tricycle, family expenses kiddie car, passenger tricycle, rickshaw, the preposition loading three-wheel vehicle of expanded letter etc., following shortcoming is arranged: the one, the effort of riding, it is dumb to turn round, always feeling has torsion on the handlebar, particularly during Uneven road, the more difficult control of driving a vehicle, so that cause roll-over accident.From speed, safety, labour-saving angle, particularly the elderly's use is unsuitable to general family; The 2nd, mostly be the saddle striding type to pedal, be unfavorable for protecting human organ.Application number is 85107493,86204722,86203472 the disclosed reclining sitting type of some patent applications three-wheel vehicle of mode to pedal, makes car and people that suitability preferably arranged; The 3rd, rider (people) is preceding, rider (people or two people) after, talk inconvenience is difficult to echo mutually and look after.The rider is very tired, and the rider thinks also powerless as possible.In addition, the track rear of family expenses kiddie car is narrower, and body structure is thiner, and stability is not enough.

One of purpose of the utility model patent application is to provide a kind of and rides and the not laterally twistings of glancing impact car body torsionless sensation on the handlebar, thereby brisk three-wheel vehicle flexibly; Two of purpose is that the rider also is the rider, both can a people to pedal also can be double and sit simultaneously to pedal, thereby can improve moving velocity and be beneficial to mutual talk and correlate.The three-wheel vehicle of above-mentioned purpose removes and to make general purpose hauling and use, and as home shopping, pick outside the people etc., is particularly suitable for middle-aged and old exercises, carries out uses such as going sightseeing of longer distance.

The design concept and the technical solution that realize first purpose are as follows:

1. reasonably design " drawing preceding amount ", handgrip suitably extends

Why general three-wheel vehicle is ridden and is sent out " stagnating ", and torsion is arranged on the handgrip, and one of its reason is that " drawing preceding amount " design is too big, generally all greater than 30 millimeters, so that 50 millimeter.If reduce to draw preceding amount (but not being the smaller the better), torsion on the handgrip will reduce, amount generally should be at 10～15 millimeters before relatively suitable drawing, the corresponding increasing in front fork inclination angle, for helping handgrip convenient, the handgrip lengthening is reached the seat front portion, even the road injustice, torsion is also unconsciously arranged on the handlebar, turn to nimbly and freely.

2. adopt extension shaft to distribute propulsive effort, two-wheel drives, the two-wheel braking

The major reason that twists about general three-wheel vehicle is to have only a wheel drive in the trailing wheel, and another takes turns servo-actuated, thereby turns round to a side when travelling, and turns round to opposite side at glancing impact.For this reason, the application adopts extension shaft, and the propulsive effort of pedal is assigned to two trailing wheels by extension shaft, drives two trailing wheels simultaneously.Trailing wheel does not have axis, all adorns flywheel, and inside and outside two wheels can be realized differential during turning.In addition, all adorn brake-applying handle in the seat left and right sides, about two handles link to each other, no matter draw which or two to draw simultaneously and can both brake two trailing wheels simultaneously.Like this, three-wheel vehicle is ridden brisk and is not twisted, and turns flexibly, and braking effectively.

The scheme that realizes second purpose is: establish double seat side by side, two pairs of pedals, uses one pair also can (people to pedal, a people has a rest), two pairs also use simultaneously can (two people be simultaneously to pedal), its propulsive effort is all by driving two trailing wheels simultaneously after the extension shaft distribution.Simultaneously to pedal the time, propulsive effort can double two people.

In order to make vehicle body and human body suitability good, the application also adopts the mode to pedal of sitting of facing upward, and force angle is compared with traditional saddle striding type to pedal greater than 110 °, and when propulsive effort was identical, the former power was high by 20%～30%, particularly two people simultaneously to pedal the time speed faster.This mode to pedal also is beneficial to exercising abdominal muscles and protects prostate and private parts not to suffer oppression and damage.

For rider comfortable and safe, the other improvement of the application has been to adopt low center of gravity, integral body to keep away the frame-type vehicle frame that shakes, and this vehicle frame divides two-layer framework up and down, and the forward and backward framework that interconnects is divided on the upper strata again, its connection mode can be to be rigidly connected, and also can be that sleeve connects.A kind of connection in back is convenient to take apart and regulate.Two-layer up and down framework by hinge with keep away the spring that shakes and be connected, on lower floor's framework trailing wheel is installed, seat and wagon box are all by the supporting of upper strata rear frame, the wagon box bottom is lower than rear axle.

Further improve and conversion is: double seat side by side can be divided into separate each other two still side by side single seats, and the relative distance that can regulate seat and pedal by the porous latch plate, with the people of suitable different heights to pedal; Can adopt purpose made to strengthen the ovalizing deflection of spoke (No. 11) with the minimizing wheel, thereby increase load-carrying ability, it is also more brisk to ride; Can adopt single seat, one pair of pedal, type of drive is constant.

In addition,, can also be equipped with mileage speed meter, clothing basket, the indicator lamp that turns round, back mirror, top, electric driver etc. certainly, make its more perfect function for convenient user and safety traffic needs.

Concrete technical solution and relevant details are further specified by accompanying drawing and following narration and embodiment.

Fig. 1 is the overall picture of the said a kind of three-wheel vehicle of the application;

Fig. 2 is the top view and the lateral plan of the vehicle frame part of Fig. 1;

Fig. 3 is the legacy system sketch of Fig. 1;

Fig. 4 is " drawing preceding amount " analysis chart.

The name of the beacon sign of Fig. 1-3 and representative thereof is called: the 1-brake-applying handle; The 2-handlebar; 3-mileage gauge outfit; The 4-mileometer soft shaft; 5-lamp fork; 6-clothing basket; The 7-front-wheel; The 8-front axle; 9-mileage meter power wheel and seat; The 10-left wheel disk; Frame before the 11-vehicle frame; The 12-right wheel disk; Vehicle frame coupling bush before and after the 13-; The 14-extension shaft; 15-damper brake bow; 16-brakes brake clip; 17-trailing wheel frame; The 18-trailing wheel; 19-keeps away the spring that shakes; 20-vehicle frame after-frame; The 21-seat cushion; The 22-chair back; The 23-wagon box; The 24-hinge; 25-axis sleeve pipe; 26-front fork sleeve pipe; The 27-hind axle; 28,29,32,33-freewheel; 30,31-fixed sprocket.

" draw front amount " and analyze: Fig. 4 has represented front-wheel, front fork and ground relation of plane. A, B, C are front fork, and C is axle, and M is the point of contact on tire and ground, and O is the intersection point on front fork axis extended line and ground, and angle BOM is the front fork inclination angle, and line segment MO is " drawing front amount ". For tricycle, real road is not the ideal plane, and also on the low side toward turning right when keeping to the right by road, and vehicle frame must drive that front fork ABC leaves paper and towards reader's direction Twisting forms one take the M point as fulcrum, the moment take MN as the arm of force, and force front-wheel to turn right, just feel to have torsion on the handgrip. Front amount is excessive when drawing, and when driving force was also more big, this trend was more obvious, to such an extent as to cause overturning. The appropriate design of for this reason drawing front amount is just very important, but is ignored by people always. The application thinks and front amount of drawing of 10-15 millimeter adds the Two-wheeled scheme, just can not feel to have torsion on the handgrip and can smooth-ride, turned to freely.

Embodiment: this example is the application's a most preferred embodiment.

The vehicle frame of three-wheel vehicle (Fig. 1,2) top view is front baffle (11), rear frame (20) and order glyph framework (17), and framework (11) is connected with sleeve (13) with (20); Side-looking is upper strata framework (11), (20) and lower floor's framework (17), the front center of framework (11) connects front fork sleeve pipe (26), handlebar (2) reaches the car body middle part, two-layer up and down framework by hinge (24) with keep away the spring that shakes (19) and be connected, there are the love seat and the wagon box (23) of cushion (21) and backrest (22) all to be contained on the framework (20), the wagon box bottom that is positioned at below the seat is lower than rear axle (27), the no axis of trailing wheel (18).

Two pairs of pedals are contained in respectively near the left wheel disk (10) of Vehicular body front and the axle of right wheel disk (12) goes up (Fig. 1,3), by flywheel (28), (29) on the chain drive tubular type extension shaft (14), two fixed sprockets (30) on this extension shaft, (31) drive two flywheels (32), (33) of rear axle (27) more respectively by chain respectively for wheel disc (10), (12).The propulsive effort that rider imposes on one pair or two pairs of pedals (people is pedaled or two people are pedaled simultaneously) all is assigned on two trailing wheels (18) by extension shaft (14).

About two continuous brake-applying handles (1) be contained in the seat both sides respectively, one or two brake-applying handle all can bend (15) and brake clip (16) by damper brake and brake two trailing wheels (18) simultaneously.

This example (sample car) main design parameters and technical performance index are:

Amount MO is 12 millimeters before drawing;

The front and back wheel diameter is 0.51 meter;

Bodywork length is 1.9 meters (adjustable);

Body width is 0.96 meter;

Maximum Loading Capacity is 300 kilograms;

Deadweight is 54 kilograms;

Best riding speed is 15 kilometers/hour;

The fastest riding speed is 25 kilometers/hour;

Minimum turning radius (nearside wheel) is 30 centimetres;

Transmitting ratio is 1:3.33.

The disclosed tricycle of the application is compared with existing tricycle, and its advantage and good effect are significantly, mainly contain:

1. the steady safety of driving a vehicle is easy to grasp, and does not have torsion on the handlebar;

2. braking is effectively turned flexibly;

3. it is brisk to ride, and optimum speed (15 kilometers/hour) drives at moderate speed quite with bicycle;

4. bus body strength height, Stability Analysis of Structures, center of gravity is low, and it is good to keep away the ability of shaking;

5. body structure and human body have good suitability, are beneficial to the health of rider, are convenient to talk and mutually treatment;

6. adopt in a large number standard component, general part, no axis, saving steel;

7. body contour does not have wedge angle and laterally projecting, is beneficial to the civilized safety driving.

Claims (4)

1, a kind of brisk three-wheel vehicle flexibly, comprise vehicle frame, front fork, handlebar, front and back wheel and driving system, a seat that has backrest, reclining sitting type to pedal, force angle is greater than 110 °, amount is the 10-15 millimeter before it is characterized in that drawing, the propulsive effort that imposes on pedal is assigned on the trailing wheel of two no axises by extension shaft, drive two trailing wheels simultaneously, two interconnected brake-applying handles place the seat both sides respectively, one or two brake-applying handle all can be braked two trailing wheels simultaneously by brake, and handlebar reaches the car body middle part.

2, according to the said three-wheel vehicle of claim 1, it is characterized in that establishing double seat side by side, two pairs of pedals, use one pair or two pairs of pedals all can.

3, according to claim 1 and 2 said three-wheel vehicles, it is characterized in that vehicle frame divides two-layer framework up and down, the upper strata framework is divided into front baffle and rear frame again, two-layer up and down framework by hinge with keep away the spring that shakes and be connected, the forward and backward framework in upper strata connects with sleeve, and the wagon box bottom is lower than rear axle.

4, according to the said three-wheel vehicle of claim 2, it is characterized in that establishing two side by side but the single seat that separates each other, and the relative distance of regulating seat and pedal by the porous latch plate.

Images