CN2167947Y - Actuating mechanism for manual pedal vehicle - Google Patents

Abstract

The utility model relates to a force transmission mechanism. Foot boards drive a middle shaft to rotate. The utility model is characterized in that the foot boards respectively do alternating motion on a slide rod up and down, the treading direction by man power is the same with the motion directions of the foot boards, and the working power by the man power is raised. Two stress wheels are arranged on both ends of the middle shaft; the foot boards with the motion up and down alternatively drive the middle shaft to continuously rotate towards one direction by the stress wheels. Under the condition of no consideration of inertia force and frictional force, compared with the force transmission mechanism of the existing bicycle, the utility model saves force by one third.

Description

Actuating mechanism for manual pedal vehicle

The application relates to a kind of mechanical transmission mechanism, especially a kind of manpower bicycle's transmission device.

Manpower bicycle's force transmission mechanism all is to make the axis rotation by foot-operated the rotation with the axis arm of force connected vertically (car thigh) of activity in the market, the problem that this conventional confguration mode of transfer force exists is, the power that is used to do work is one and vows variable, the people acts on power on foot-operated and the sense of motion of the arm of force often has an angle, some power is depleted during use, become no power, power is not high.

The utility model purpose is to provide a kind of transmission device that can improve the manpower bicycle of power.

Technical scheme is as follows: change foot-operated circular movement into up-and-down movement up and down, it is consistent with foot-operated sense of motion to make manpower execute power-assisted direction, this straight-line motion up and down that to ride again changes rotatablely moving of axis into through force transmission mechanism, concrete grammar is that the axis two ends are changed into by the arm of force to be subjected to wheels, be subjected to be connected as a single entity by ratchet between wheels and the axis, axis can only be rotated to a direction, and axis is fixed on the vehicle frame by bearing frame.Two stretchers then are separately fixed on two single glider, and slide block then is actively socketed on two respectively independently on the fixed slip bar, and the two ends of slide bar are then fixed with vehicle frame.Connect as one by two fixed pulley and flexible gentle ropes that are separately fixed on the vehicle frame between two slide blocks, slide block can alternately be pumped on slide bar separately under the foot-operated effect of manpower, realize that thus manpower is consistent with foot-operated sense of motion, be subjected to wheels to drive axis then by other type of drive drive again by slide block and rotate.

Here slide block can the guide securement traction by flexible gentle rope and fixed pulley be rotated by wheels, promptly fixes flexible gentle rope on slide block, and by the fixed pulley guiding around being subjected on the wheels, flexible gentle rope tractive is rotated by wheels during slide block movement.

The mode of another kind of power transmission is that slide block itself is a rack structure, be fixed with on it foot-operated, under foot-operated effect tooth bar can be on slide bar up-and-down movement, the periphery that at this moment is subjected to wheels is a circle gear, tooth on the tooth bar can directly coincide with the tooth that is subjected to wheels, and drive is rotated by wheels and axis.

Slide bar among the design, fixed pulley and axis bolster are all fixed with the vehicle frame of bicycle.

The foot-operated force transmission mechanism of above-mentioned manpower is economized about 1/3rd than existing foot-operated driving force mechanism under the prerequisite of negligible friction and inertia, and just structure slightly complicates.

Below in conjunction with the embodiment accompanying drawing this application is described in further detail.

Fig. 1 is one-sided foot-operated slide block, is subjected to a kind of mode of transfer force scheme drawing of wheels.

Fig. 2 is Figure 1B-B view, reflection slide block movement scheme drawing.

Fig. 3 is Figure 1A-A view, and reflection is subjected to the relation of wheels and axis.

Fig. 4 is the type of drive that the one-sided foot-operated slide block of another embodiment is subjected to wheels.

Referring to accompanying drawing 2, foot-operated 2,15 are fixed as one with slide block 3,14 respectively, slide block 3,14 is socketed on two fixed slip bars 1,13, can be connected as a single entity by fixed pulley 12,16 and flexible gentle rope 18 between the slide block 3,14, slide block can alternately be pumped on slide bar separately under the foot-operated effect of manpower.Be subjected in the mode of transfer force of wheels at one-sided foot-operated slide block shown in Figure 1, a fixed pulley 11,5 respectively arranged up and down in the front side of slide bar 1.Two flexible steel ropes 10,6 are arranged, fix with the upper and lower side of slide block 3 respectively by fixed pulley, the other end of steel rope is then reverse respectively in the groove that is subjected to wheels 7, and is fixed on the S point that is subjected to wheels.See Fig. 3, the two ends of axis 8 respectively have one to be subjected to wheels 7,19, and are fixing by ratchet 9,20 and axis 8 respectively.During use, when foot-operated 2 and the effect of slide block 3 at manpower under when moving downward.Be subjected to wheels 7 to drive axis 8 clickwise together by cable wire 10 tractives by ratchet 9, at this moment, another foot-operated 15 slide blocks 14 upward movement under gentle 18 tractive, and traction is subjected to wheels 19 anti-clockwise rotations, here because the effect axis of ratchet can only clickwise, when alternately stepping on foot-operated 15 and slide block when moving downward, situation is opposite, slide block 14 is subjected to wheels 19 and drives axis 8 clickwises by ratchet 20 by the steel rope tractive, and rotated by wheels 7 inhours, alternately trample like this and ride 2,15, axis is continuously rotated.

Among the embodiment, all there is a spring 4,17 lower end of two slide bars, and their effect is when mechanism's continuous movement, is used to eliminate the force of inertia loss of mechanism.In addition, the slide bar among the figure, fixed pulley is all captiveed joint with the vehicle frame of manpower pin car with the bottom bracket bearing frame, all right fixed chain wheels 20 on axis, and by chain drive wheel revolutions.

Fig. 4 is another embodiment and the type of drive that adopts rack and pinion, slide block is a rack structure 22 among the figure, be fixed with foot-operated 2 on it, the periphery that is subjected to wheels 7 is a gear structure, the interlock of rack and pinion phase, here tooth bar 22 still is socketed in up-and-down movement on the slide bar as a slide block, and this mode can be omitted slide block and be subjected to cable wire and fixed pulley between the wheels.

Above-mentioned manpower bicycle's force transmission mechanism can be applicable to bicycle widely, and its manpower such as three-wheel vehicle is ridden rotating mechanism.

Claims (3)

1, a kind of bicycle, drive the force transmission mechanism of axis rotation, the two ends that it is characterized in that described axis respectively have one to be subjected to wheels, be subjected to be connected as a single entity by ratchet between wheels and the axis, axis can only be rotated to a direction, described stretcher is fixed on two single glider, slide block is actively socketed on respectively on the fixing slide bar of two independences and vehicle frame, can cross one group between two slide blocks is fixed on fixed pulley and the flexible gentle rope that vehicle frame is and connects as one, slide block can alternately be pumped on slide bar separately under the foot-operated effect of manpower, be subjected to wheels by the slide block drive, drive axis then and rotate.

2, manpower bicycle's as claimed in claim 1 force transmission mechanism, it is characterized in that being fixed with on the described slide block flexible gentle rope and by pulley guiding around being subjected on the wheels.

3, manpower bicycle's as claimed in claim 1 force transmission mechanism is characterized in that described slide block is a rack structure, and the described wheels that is subjected to is corresponding to gear structure, rack and pinion phase bridle joint.

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