CN1199001A - Bicycle - Google Patents

Abstract

A new-type bike features that its pedal crank has an arc rack bar acting on the ratchet gear in single direction and in turn driving the drive chain wheel, a reset unit composed of crank mechanism is used to make left and right pedal cranks be pedaled alternatively, and its front movable saddle plate is connected via connecting rod to pedal crank for making rider comfortable. Its advantages are high drive performance and efficiency and saving labour.

Description

A kind of bicycle

The present invention relates to a kind of bicycle, it belongs to the wheeled car class of being trampled driving by the rider people.

Present wheeled bicycle all is crank-type garden week to trample driving, because people's pedal force changes with the sinusoidal function cycle with the actual moment that is delivered on the drive sprocket, moment is from 0-1 scope cyclomorphosis, thus there is driving efficiency low, the defective that the power loss is big.

The present invention is intended to overcome above-mentioned defective, provides a kind of bicycle to society.

Technical scheme of the present invention is illustrated according to accompanying drawing.By accompanying drawing as seen, a kind of bicycle comprises vehicle seat, vehicle frame, handlebar and tramples driving and reset attachment, its feature: described vehicle seat is made up of back seat plate 1 and a pair of movable fore beam 2,2 ', back seat plate 1 links to each other with the last longeron 5 of vehicle frame by vertical cramp bar 4, a pair of movable fore beam 2,2 ' then is articulated in the both sides of above-mentioned back seat plate 1 leading edge middle part lug, and the garden axis pin of column by the lug both sides links; Described vehicle frame comprises rear wheel frame 8 and affixed with it bottom bracket axle 22, bearing seat 24,24 ', the beam 9 that hangs down, goes up longeron 5, longeron 6, orienting sleeve 7, upper bearing plate 10, lower support plate 11, restorer axle bed 12 down; The described actuating device of trampling comprises the gear that has ratchet that is placed in the axis 27 in the bottom bracket axle 22 and links by key at the axis two ends by bearing, wherein linking drive sprocket 18 on the pawl wheel 31 of You Bian ratchet-gear wheel 17, be distributed with four ratchets 28 on the outer face of pawl wheel 31,28 ', 28 , 28 "; ratchet-gear wheel 17 forms one-way clutch with pawl wheel 31 by ratchet and realizes unidirectional transmission of torque; at bearing seat 24; 24 ' upward has driven shaft 23 by the bearing binding; the right hand side keys at this is linking driven sprocket 19; bearing case 25 is equipped with by bearing in the two ends at this, 25 ', with this case 25,25 ' affixed the bar 16 that scrunches, 16 ', arc-shaped rack 14,14 ' and the band sliding tray 13,13 ' rod member, connecting tread plate 15 at the termination pin that scrunches bar, 15 ', plain bearing 38 and stepped shaft 36 are housed in restorer axle sleeve 12, at this two ends crank 21 is housed, 21 ', by nut 34,34 ' and fastening, contain return pin 33 on the other end of crank, 33 ', this bearing pin vertically stretches into the sliding tray 13 that scrunches bar, in 13 ', arc-shaped rack 14,14 ' the gear teeth and ratchet-gear wheel 17,17 ' the gear teeth are connected with engagement, drive sprocket 18 is connected with driven sprocket 19 by chain 20 and realizes transmission of torque, scrunches bar 16 in addition, 16 ' by hole, garden on the arc-shaped rack and connecting rod 39,39 ' with preceding movable base plate 2, bearing 3 on 2 ', 3 ' is connected.

Accompanying drawing 1 is a structural representation of the present invention

Accompanying drawing 2 is that the present invention sheds structural representation behind handlebar and front and back wheel and the connecting rod

Accompanying drawing 3 is transmission principle scheme drawings of the present invention

Accompanying drawing 4 is ratchet-gear wheel chain sprocket structure scheme drawings of the present invention

Accompanying drawing 5 is the bar restorer structural representations of trampling of the present invention

In the accompanying drawing: 1 back seat plate, 2,2 ' preceding movable base plate, 3,3 ' bearing, 4 cramp bars, longeron on 5,6 times longerons, 7 guide pipes, 8 rear wheel frames, 9 vertical beams, 10 upper bearing plates, 11 lower support plate, 12 restorer axle sleeves, 13,13 ' pin slide groove, 14,14 ' arc-shaped rack, 15,15 ' tread plate, 16,16 ' scrunches bar, and 17,17 ' ratchet-gear wheel, 18 drive sprockets, 19 driven sprockets, 20 chains, 21,21 ' crank, 22 bottom bracket axles, 23 driven shafts, 24,24 ' bearing seat, 25,25 ' bearing case, 26,26 ' capping, 27 axis, 28,28 ', 28 "; 28 ratchets, 29 extension springs, 30 ratchets; 31 pawl wheels, 32 bolts, 33; 33 ' return pin; 34; 34 ' nut, 35,35 ' capping, 36 stepped shaft, 37,37 ' nut, 38 plain bearings, 39 connecting rods.

Principle of work of the present invention: when riding the human pin and trample a certain side tread plate, pedal stroke moves downward together with arc-shaped rack, the gear teeth on the tooth bar act on unidirectional ratchet-gear wheel, making it axis and drive chain crop rotation clockwise direction rotates, be delivered on the driven sprocket by chain again, thereby driving driven shaft rotates, bicycle is the stretch journey to overtake, and opposite side meanwhile scrunches bar and arc-shaped rack, under the effect of its reset attachment, upwards pull back and be in and treat mode of operation, in the process of pulling back, though the ratchet-gear wheel of this side is forced to do anticlockwise motion, but the ratchet-gear wheel and the pawl wheel of this side are separated from, do the clockwise direction rotation so do not influence and hinder axis, its situation is with noted earlier identical when rider human pin is trampled this side tread plate, bicycle is a segment distance to overtake again, thereby rider by alternately trampling continuously of bipod realize bicycle continuously to overtake, since preceding portable plate by connecting rod with scrunch bar and be connected, the preceding portable plate of former homonymy and this side scrunch bar and do synchronous above-below direction motion, trample to rider and bring comfortable and convenience.

In sum, the present invention embodies rational in infrastructure really, and motion is compact, modern design, the characteristics that are skillfully constructed are used for seeing that from actual making the transmission performance with power is good, rendeing a service height, can utilize the self gravitation of human body to do work to greatest extent, is to have the novel product that exploitation is worth.

Claims (1)

1, a kind of bicycle comprises: handlebar, vehicle seat, vehicle frame, trample actuating device, it is characterized in that:

A, described vehicle seat are made up of back seat plate 1 and a pair of movable fore beam 2,2 ', back seat plate 1 links to each other with the last longeron 5 of vehicle frame by vertical cramp bar 4, a pair of movable fore beam 2,2 ' then is articulated in the both sides of above-mentioned back seat plate leading edge middle part lug, links by garden column pin hole on garden pin on the lug both sides and the preceding movable base plate.

B, described vehicle frame comprise rear wheel frame 8 and affixed with it bottom bracket axle 22, bearing seat 24,24 ', the beam 9 that hangs down, last longeron 5, following longeron 6, orienting sleeve 7, upper bearing plate 10, lower support plate 11, restorer axle bed 12.

C, the described actuating device of trampling comprises axis 27 that is placed in the bottom bracket axle 22 and the ratchet-gear wheel 17 that is linking at axis two ends key, 17 ', wherein the pawl wheel 31 of You Bian ratchet-gear wheel 17 is linking drive sprocket 18, the outer face of pawl wheel is distributed with four ratchets 28,28 ', 28 "; 28 ; ratchet-gear wheel 17 and pawl wheel 31 form one-way clutch by ratchet; bearing seat 24; 24 ' links by bearing driven shaft 23 is arranged; the right hand side keys of axle 23 is linking driven sprocket 19, the bearings at both ends of axle 23 links bearing case 25,25 ', this case with scrunch bar 16,16 ', arc-shaped rack 14,14 ' and the band sliding tray 13,13 ' rod member is affixed, the termination pin that scrunches bar links tread plate 15,15 ', plain bearing 38 and stepped shaft 36 are housed in restorer axle sleeve 12, crank 21 is equipped with at this two ends, 21 ', return pin 33 is equipped with in the termination of crank, 33 ' and vertically stretch into the sliding tray 13 that scrunches bar, in 13 ', arc-shaped rack 14, the gear teeth on 14 ' are meshed with the gear teeth on the ratchet-gear wheel and link, drive sprocket 18 is connected by chain 20 and driven sprocket 19, scrunches bar 16,16 ' by connecting rod 39,39 ' is linked to preceding movable base plate 2,2 '.

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