CN2186210Y - Effort-saving, high-speed bicycle - Google Patents

Abstract

The utility model relates to a labor saving and high speed bicycle which solves the problem that the existing common bicycle structure can not cause the lower limbs of a human body to exist in an optimal motion range. The labor saving and high speed bicycle comprises a bicycle frame, a front wheel, a back wheel, a chain drive mechanism and a seat. The utility model is characterized in that on the basis of a group of the existing driving chains, the chain drive mechanism is added with a group of driving chains; the seat surface of the seat adopts a curved surface which accords with the sitting arc line of a human body; the sizes of the front wheel and the back wheel are unequal, and the front wheel is smaller than the back wheel. The labor saving and high speed bicycle can change the riding posture of riders. The posture can ensure the action state that a human body can enduringly exert maximal action in the range of power and can not feel fatigue easily.

Description

Effort-saving, high-speed bicycle

The utility model relates to a kind of bicycle, exactly is a kind of laborsaving, quick bicycle.

Ergonomics from " people ", " machine ", " environment " this three big key element as its basic structure, not only the performance of weight analysis three big key elements itself, and more pay attention between the research three big key elements interrelation, mutual action, influence each other and three big key elements between coordination mode.Its purpose and main task are that this synthesis of---machine---environment is set up the assembled scheme of an optimization to the people, so that bring into play people's effect effectively, and for the operator provides safety and comfortable environment, thereby increase work efficiency.

Ergonomic theory is pointed out, in order to guarantee the high efficiency of system, the various effectors of fitness for purpose, within the scope that brothers can reach when all being in the trunk outage, in order to guarantee operator's comfortable and indefatigability, operant activity that must the bondsman is in the setting range of the movable comfortable posture of partes corporis humani.Fig. 1, vertical direction and horizontal direction foot was pedaled power when Fig. 2 was respectively human body sitting posture, peripheral curve among the figure is a boundary of pedaling power, arrow refers to power thrusts, when the oblique application of force, I position (70 ° of angles) can obtain best active state, can guarantee operator's maximum effect of performance within one's power enduringly, and don't fatigable active state.The II position is the maximum force application location that foot that existing ordinary bicycle structure can produce is pedaled power, and obviously existing ordinary bicycle structure can not make human body lower limbs be in the action radius of the best, bring into play so rider's strength is difficult, and fatiguability.

On the other hand, existing bicycle has adopted one group of chain drive, and the raising of the bicycle speed of a motor vehicle is restricted.

The purpose of this utility model is:

Provide a kind of based on ergonomic theory, laborsaving, quick bicycle.

Its technical solution is as follows:

The utility model comprises vehicle frame, front-wheel, trailing wheel, chain drive and seat.

Its chain drive is set up one group of messenger chain on the basis of existing one group of messenger chain, i.e. one side of chain wheel before existing bicycle, the coaxial minor sprocket that is provided with one group of different-diameter; Oblique upper, the preceding brace of preceding chain wheel are provided with a hinge wheel, stride around chain on minor sprocket and the hinge wheel; And preceding brace becomes 25 °～35 ° angles with horizon, footstep mechanism is located on the hinge wheel.

Its seat is made up of seat, spring and a seat board, and seat is to have and the human body curved surface that camber line adapts of taking one's seat, and has backrest; Prop up seat board and have the curved surface that matches with seat, be provided with spring between a seat and the seat board, the bottom surface of a seat board is provided with draw runner; Draw runner cooperates with curve chute, and curve chute is located at the rod end of back brace and two rear wheel fulcrum bars; And the chair back---foot-operated line becomes 50 °～80 ° angles with plumb bob vertical.

Its front and rear wheel diameter does not wait, and preceding wheel diameter is less than the back wheel diameter.

Its front fork stem is provided with a paravent, and the windward side of paravent is a convex surface.

The utlity model has following advantage:

1, this bicycle has changed cyclist's posture by bike, and this posture is more conducive to the performance of human strength, and as seen from Figure 1, its maximum foot is pedaled power two times for existing ordinary bicycle;

2, this bicycle has been set up one group of chain-driving, thereby has improved transmitting ratio, makes the speed of a motor vehicle of bicycle can improve two times;

3, seat has adopted and the human body curved seat that camber line adapts of taking one's seat, and has changed the state that existing ordinary bicycle makes people's private parts pressurized;

4, this bicycle car load center of gravity has reduced by 15～25cm, and the stability of its car load has improved, and helps traffic safety;

5, a paravent is set up in the car front portion, and the convex surface of paravent helps air and forms laminar flow, reduces air resistance.

Description of drawings:

The foot of vertical direction was pedaled power when Fig. 1 was human body sitting posture;

The foot of horizontal direction was pedaled power when Fig. 2 was human body sitting posture;

Fig. 3 is the utility model structural front view;

Fig. 4 is the utility model structure right elevation;

Fig. 5 is the utility model armchair structure front view;

Fig. 6 is the utility model armchair structure left view;

Below in conjunction with drawings and Examples the utility model is further described.

As seen from Figure 3, this bicycle is made up of vehicle frame, front-wheel 6, trailing wheel 9, chain drive and seat etc.

On the basis of one group of messenger chain that its chain drive chain wheel 5 and gear shift flywheel of trailing wheel 9 before existing are formed, set up one group of messenger chain, a side of preceding chain wheel 5 as shown, the coaxial minor sprocket that one group of different-diameter is housed; At the oblique upper of preceding chain wheel 5, a hinge wheel 4 is housed on the preceding brace 7, to stride around chain on minor sprocket and the hinge wheel 4, footstep mechanism is located on the hinge wheel 4.The minor sprocket of different-diameter has two, so this group messenger chain can be realized two kinds of transmitting ratios respectively.The transmission device that this car is made up of two groups of messenger chains makes the speed of a motor vehicle of car load can improve two times.

Preceding brace 7 becomes 25 °～35 ° angles with horizon, back brace 8 and preceding brace 7 are at an angle of 90.

Seat is made up of seat 1, spring and a seat board 11, and seat is to have and the human body curved surface that camber line adapts of taking one's seat, and backrest is arranged; Prop up seat board 11 and have the curved surface that matches with seat, between a seat 1 and the seat board 11 spring is arranged, draw runner is equipped with in the bottom surface of a seat board 11; Draw runner cooperates with curve chute 13, and curve chute 13 is loaded on the rod end of back brace 8 and two rear wheel fulcrum bars 10.Seat can slide along curve chute by the draw runner of seat board 11 bottom surface, and to reach the purpose of adjusting chair angle, the stop screw on the curve chute 13 can be fixed in seat a certain correct position.The chair back---the angular range of foot-operated line and plumb bob vertical is 50 °～80 °.

Collide for fear of front-wheel 6 and stretcher, must draw back the front and rear wheel distance, and make the diameter of the diameter of front-wheel 6 less than trailing wheel 9.The front and rear wheel diameter ratio is 1:2 on the figure.

As seen from Figure 3, the paravent of a stream line pattern is housed on front fork stem 12, its windward side is a convex surface.

Claims (2)

1, a kind of laborsaving, quick bicycle comprises vehicle frame, front-wheel, trailing wheel, chain drive, seat, it is characterized in that:

A, chain drive set up one group of messenger chain on the basis of existing one group of messenger chain, i.e. one side of chain wheel before existing bicycle, the coaxial minor sprocket that is provided with one group of different-diameter; Oblique upper, the preceding brace of preceding chain wheel are provided with a hinge wheel, stride around chain on minor sprocket and the hinge wheel; And preceding brace becomes 25 °～35 ° angles with horizon; Footstep mechanism is located on the hinge wheel;

B, seat are made up of seat, spring and a seat board, and seat is to have and the human body curved surface that camber line adapts of taking one's seat, and has backrest; Prop up on the seat board curved surface that matches with seat is arranged; Be provided with spring between a seat and the seat board, the bottom surface of a seat board is provided with draw runner; Draw runner cooperates with curve chute, and curve chute is located at the rod end of back brace and two rear wheel fulcrum bars; And the chair back-foot-operated line becomes 50 °～80 ° angles with plumb bob vertical;

C, front and rear wheel diameter do not wait, and preceding wheel diameter is less than the back wheel diameter.

2, a kind of laborsaving, quick bicycle according to claim 1, it is characterized in that: front fork stem is provided with a paravent, and the windward side of paravent is a convex surface.

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