CN2059903U

CN2059903U - Two-wheel pedal vehicle

Info

Publication number: CN2059903U
Application number: CN90202633U
Authority: CN
Inventors: 黄寿郎
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-03-07
Filing date: 1990-03-07
Publication date: 1990-08-01

Abstract

The utility model relates to a two-wheel pedal vehicle. A pedal device of the two-wheel pedal vehicle drives a back wheel to move forward through two freewheels (freewheel) fixed on both side of a back wheel and two chains arranged in the I-shaped slot of the back end of a pedal. The pedal device is lifted up with the front end of the pedal device as a shaft to make the chains be completely disengaged from the flywheels, and thus, the back wheel moves backward. The utility model also provides a structure capable of being simply folded so as to reduce the volume of the whole two-wheel pedal vehicle.

Description

Two-wheel pedal vehicle

The utility model relates to a kind of two and takes turns velocipede, and the special tectonic of device is trampled at it by special system.

Two take turns velocipede, and as its name suggests, its structure should include two wheels substantially and can obtain a group of power for trampling tramples device; As shown in Figure 1, should be the shape that a lot of people can contemplate, but wherein how be designed to one really practical and construct no problem two and take turns velocipede, be not a nothing the matter just probably; Therefore, on the market so far and find no two and take turns the velocipede public offering; Probe into wherein factor, nothing more than being theoretical one section gap still to be arranged, for example with reality: (A) this two treadles rear end and trailing wheel both sides gear meshing mode among Fig. 1, adopt which kind of mode just can reach simple structure and can mesh again, can slip teeth or take off tooth; (B) gear unidirectional rotation only; (C) whether trailing wheel can reverse; Etc. all problems.

Wherein, maximum problem is, this velocipede can't be moveed backward, and promptly trailing wheel can't reverse, because be fixedly arranged on the gear of trailing wheel both sides are a kind of unidirectional rotatable gears, promptly gear and trailing wheel rotate in the same way when treadle is trampled downwards, and can drive trailing wheel and rotate this moment, when treadle loosens when upwards recovering, this gear will dally and with the trailing wheel contrarotation, and when static, treadle rear end and gear are to keep engagement, fall back so trailing wheel can't reverse.

Therefore, the utility model aim to provide a kind of simple and practical and can make trailing wheel counter-rotating freely two take turns velocipede.

This two principal characters of taking turns velocipede are that this two device of trampling of taking turns velocipede comprises: two flywheels, that are fixedly arranged on the trailing wheel both sides are arranged at main elements such as pivot shaft on the vehicle frame, two treadles, two pedals, two chain stays, two sections chains and spring: wherein this two treadles front end respectively pivot in these pivot shaft both sides and be subjected to the elastic force of this spring and be able to pivot shaft and be axle, the chain stays that order is fixedly arranged on the treadle rear end is swung up and down, the two ends of these two sections chains are individually fixed in the upper and lower side of chain stays in addition, and must mesh with this two flywheel at any time; Mat is trampled this two pedal and just can be made these two sections chains stir flywheel rotating and to advance.

This two another feature of taking turns velocipede are that this is trampled and are provided with one group of reversing gear between device and vehicle frame, its both sides that mainly lie in pivot shaft respectively are provided with a sheet spring spacer, central authorities are provided with hole and pass for pivot shaft, the front end the place ahead that makes progress is extended a suitable length rear end is bent laterally and is provided with treadle location lug for this spring upper end of trampling device holds, make this spring of trampling device upper end be held in the last front end of this spring spacer, and the spring lower end by treadle indirect roof pressure locate lug in treadle; Make this two treadle be able to pivot shaft by this and flywheel is lifted off in its rear end, reverse for trailing wheel for axle.

This two another these vehicle frames that are characterised in that of taking turns velocipede are collapsible constructions, its consist predominantly of and one be "

" back segment of type leading portion and with " Jiong " type Connection Block constitute; Wherein the bending place of leading portion is provided with perforation and passes pivot for pivot shaft and be provided with a dip plane in the hole of " Jiong " type Connection Block front end and the rear end of this leading portion, should " Jiong " bottom is provided with two fixed orifice mats, one bolt in addition in conjunction with wherein but type Connection Block inner end is the inclined-plane; The dip plane, rear end of leading portion presses on the dip plane of " Jiong " type Connection Block of back segment during use, and this bolt of mat is incorporated into the rear end fixed orifice and gets final product, when folding, earlier bolt is unloaded and be that axle rotates a leading portion vehicle frame with the pivot shaft, make handle draw close to trailing wheel, be incorporated into the front end fixed orifice with this bolt again, can finish folding.

What deserves to be mentioned is that this two innovation of taking turns velocipede is constructed, and has the following advantages:

(A) used flywheel (Freewheel) and chain all are common components, but pass through the particular design of its spatial shape, really can reach and trample the purpose of advancing, and have low, the easily manufactured characteristic of cost simultaneously;

(B) this two treadle 51. is in design if make when carrying to vertex on it, this velocipede can solve the problem that retreats reversing though chain does not contact then with the flywheel disengaging, and the sound is very big when trampling, and easy slip teeth, if make chain and flywheel keep engagement in the design, then can not retreat reversing; Therefore, the utility model can start treadle easily through the spring spacer of particular design; Moreover even treadle is not started when retreating, also because of treadle 51. and spring spacer 61. can rotate with respect to vehicle frame, and tooth portion 551 that can the mat flywheel so still can retreat, just has the sound slightly with chain and the chain stays pushing tow that makes progress.

(C) this two is taken turns velocipede and has folding special tectonic, can reduce the volume of carrying.

Implement according to this for making more clear understanding of other purposes of the present utility model and architectural feature and order be familiar with this operator, then conjunction with figs. is enumerated a preferred embodiment, is described in more detail in the back:

Wherein:

Fig. 1 is the block diagram of a preferred embodiment of the present utility model.

Fig. 2 is the three-dimensional packet diagram of part of trampling device of the present utility model.

Fig. 3 is the three-dimensional exploded view that the utility model is trampled device forebody, reversing gear and folded structure.

Fig. 4 and Fig. 5 are the solid combination scheme drawing of Fig. 3.

Fig. 6 is the action scheme drawing of treadle that the utility model is trampled device chain and flywheel when stepping on downwards.

Fig. 7 is the action scheme drawing of treadle that the utility model is trampled device chain and flywheel when loosening.

Fig. 8 is the use scheme drawing of the utility model reversing gear.

Fig. 9 is the folding action scheme drawing of the utility model.

At first see also shown in Figure 1ly, this two takes turns the main elements such as two treadles 51, two pedals 52, spring 53, chain stays 54 and two flywheels 55 that velocipede includes leading portion vehicle frame 11, back segment vehicle frame 12, front fork 13, back vent 14, front-wheel 21, trailing wheel 22, handle base 31, handle 32, pivot shaft 40 substantially, tramples device;

Wherein to trample two flywheels (Freewheel) 55 of device be the both sides that are fixedly arranged on trailing wheel 22 respectively to this group, see also shown in Figure 2, the end of this two treadle 51 respectively is installed with a fixed orifice that inwardly concaves a ring-type, getting mat two fixing pins 542 is fixed in the two ends of one section chain 543 in the chain stays 54, see also Figure 6 and Figure 7, the chain 543 of treadle 51 ends is to keep at any time and flywheel 55 engagements, when treadle 51 is depressed, the tooth portion 551 of this flywheel 55 will advance with trailing wheel 22 anti-clockwise rotations, but when loosening treadle 51, this chain 543 upwards advances 551 one-tenth right-hand revolutions of tooth portion of flywheel 55.

See also shown in Figure 3, this vehicle frame leading portion 11 is " " type, its end is a dip plane 111, and be provided with perforation 112 in the bending place, the rear end of this vehicle frame back segment 12 connects back vent 14 and front end affixed " Jiong " type Connection Block 121, end is provided with hole 122 before this Connection Block 121, and the inner end also is dip plane 123 and the bottom is provided with two fixed orifices 124,125 in addition, but mat pivot shaft 40 passes hole 122 and perforation 112 and a section pivot before and after the vehicle frame is integral; This spring 53 is the tubulose position 511 that is wound in treadle 51 front ends, and its upper end 531 is held in end 611 and vehicle frame leading portion 11 on this two springs spacer 61, and lower end 532 hooks are held in treadle 51 belows, make upwards elastic force of treadle 51 maintenances one; The tubular portion 511 that the central part of this two springs spacer 61 is provided with hole 612 confession pivot shafts 40 and treadle 51 passes and as Fig. 4 and shown in Figure 5, is close proximity to the vehicle frame both sides, and makes this two treadle 51, this spring spacer 61 and spring be consolidated into one; When the user tramples these two treadles, 51 declines respectively, because of end top on the spring 53 is stuck in vehicle frame section 11 before, so the lower end can be to the treadle 51 generations one recovery strength that makes progress; When the user upwards starts this two treadle 51, this two treadle 51 is with the location lug 613 of this spring spacer 61 of roof pressure, spring spacer 61 is rotated and pressuring spring 53 follow rotate and make that end 531 breaks away from vehicle frame leading portion 11(as shown in Figure 8 on the spring 53), and the rear end chain 543 of treadle 51 will break away from flywheel 55, so trailing wheel 22 can reverse arbitrarily and retreat, and this two treadle 51 to start action very light easily.

See also Fig. 3,5 and shown in Figure 9, originally two take turns velocipede for can save volume, in order to carrying, and be designed to folding structure, foldable structure can have a variety of designs certainly, but this folded structure has simply constructed characteristics, has much practicality; Among the figure as can be known " Jiong " type Connection Block 121 inner ends of the end of this vehicle frame leading portion with dip plane 111 and this vehicle frame back segment also be dip plane 123, so front and rear sections 11,12 with pivot shaft 40 serve as the axle stay bolt to this two dip plane 111 when 123 contact, can utilize bolt 70 to penetrate fixed orifice 124 and give connection and finish the vehicle frame of running condition; When desiring folding, pine is unloaded bolt 70, and makes leading portion 11 draw close (as shown in Figure 9) to trailing wheel 22, and mat bolt 70 penetrates fixed orifice 125 and gives connection again, can finish folding action, and is very convenient; Certainly as shown in Figure 1, the pivot joint of this second chief 32 and handle base 31 is the eccentric lever 311 of mat and can fix fast and the direction of swing handle 32 also, thus when folding, but also the loosening eccentric lever 311 of mat and with handle 32 past trailing wheels near, to save more volumes, very convenient.

Claims

1, a kind of two take turns velocipede, be primarily characterized in that this two device of trampling of taking turns velocipede comprises: two flywheels, that are fixedly arranged on the trailing wheel both sides are located at main elements such as pivot shaft on the vehicle frame, two treadles, two pedals, two chain stays, two sections chains and spring; Wherein this two treadles front end respectively pivot in these pivot shaft both sides and be subjected to the elastic force of this spring and be able to pivot shaft for the axle, the chain stays that order is fixedly arranged on the treadle rear end is swung up and down, the two ends of these two sections chains are fixedly arranged on the upper and lower side of chain stays respectively in addition, and must mesh with this two flywheel at any time; Mat is trampled this two pedal and just can be made these two sections chains stir flywheel rotating and to advance.

2, as claimed in claim 1 two take turns velocipede, it is characterized in that this is trampled is provided with one group of reversing gear between device and vehicle frame, the both sides that this reversing gear mainly lies in pivot shaft respectively are provided with a sheet spring spacer, central authorities are provided with hole and pass for pivot shaft, the front end the place ahead that makes progress is extended a suitable length rear end is bent laterally and is provided with treadle location lug for this spring upper end of trampling device holds, make this spring of trampling device upper end be held in the last front end of this spring spacer, and the spring lower end by treadle indirect roof pressure locate lug in treadle; Make this two treadle be able to pivot shaft by this and flywheel is lifted off in its rear end, reverse for trailing wheel for axle.

3, as claimed in claim 1 two take turns velocipede, it is characterized in that this vehicle frame is collapsible constructions, its consist predominantly of and one be "

" leading portion of type constitutes with a back segment with " Jiong " type Connection Block; Wherein the bending place of leading portion is provided with perforation and passes pivot and be provided with a dip plane in the hole of " Jiong " type Connection Block front end and the rear end of this leading portion for pivot shaft, should " Jiong " bottom is provided with two fixed orifice mats, one bolt in addition in conjunction with wherein but type Connection Block inner end is the dip plane; The rear end of leading portion tilts and presses on the dip plane of " Jiong " type Connection Block of back segment during use, and this bolt of mat is incorporated into the rear end fixed orifice and gets final product, when folding, earlier bolt is unloaded and be that axle rotates a leading portion vehicle frame with the pivot shaft, make handle draw close to trailing wheel, be incorporated into the front end fixed orifice with this bolt again, can finish folding.