CN101037131A

CN101037131A - Motor-driven assistor for bicycle

Info

Publication number: CN101037131A
Application number: CNA2006100390135A
Authority: CN
Inventors: 张仁根
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-16
Filing date: 2006-03-16
Publication date: 2007-09-19

Abstract

The invention discloses an automatic booster for a bicycle, belonging to the bicycle technology field. Cams (5) are equipped on an external tire to collide with the ground to bounce, a vibration damper is arranged to damp the bounce vibrations, a boss (3-1) and a rack (3-2) are arranged on an external casing of the vibration damper (3), the lower end the upper end of the rack (3-2) is fixed on the boss (3-1), and the lower end of the rack engages with an attached flywheel casing (2). The operational principles comprises that the cams on the external tire bounce, a flat fork slide bar (4) circularly moves upward and downward in the vibration damper to force the rack fixed on the external casing (3) of the vibration damper and the continuously driving flywheel provide power. The invention has advantages of reasonable structure, low manufacturing cost, convenient application, energy saving, and no exhaust gas pollution.

Description

Motor-driven assistor for bicycle

Technical field

The invention belongs to technical field of bicycles, be specifically related to a kind of work-saving device of bicycle, laborsaving by bike for people.

Background technology

In existing bike tech, all be back and forth to scrunch just and can travel by manpower, so that quite feel consumption power by bike.And be provided with the bicycle of work-saving device, people scrunch then be used for that bicycle has just started and some highway section scrunch several down.And the similar bicycle that the work-saving device of power-assisted effect is housed is not then seen to disclose as yet.

Summary of the invention

Purpose of the present invention is to provide a kind of motor-driven assistor of bicycle, overcoming the deficiency of prior art, satisfying the growing consumption demand of society, and can reduce the use amount of motor bike and Electrical Bicycle, is beneficial to energy savings, reduces and pollute.

The technical matters that will solve required for the present invention, it comprise with the front fork of bicycle and back vent change system into the preceding chain stay of similar a kind of motor bike and back chain stay bumper bicycle and comprise bumper and the interconnection technique of vehicle frame.It is characterized in that, on cover tire, be provided with cam and road surface and conflict.On floral disc, increase and be provided with Case of fly-wheel that Case of fly-wheel is a cylindrical straight gear and the tooth bar that rear side is provided with and mesh, and the upper end of tooth bar by screw retention on the rear wall of establishing on the outer tube of the bumper above the chain stay slide bar by the boss of integral production, and with bumper in the parallel cooperation of chain stay slide bar.

Technique scheme, principle of work as seen, when bicycle under steam.The cover tire cam is each conflicts when bouncing with the road surface.Just as bicycle alternately travels at uphill road and downhill path, and reduced the spring negative effect of conflicting and producing, and utilized the playback principle of the spring pressure in the bumper by cover tire cam and road surface by the bumper principle of work.Specifically, contact to earth when spring at the cover tire cam, when the chain stay slide bar was put in the outer tube of bumper upward, this moment, rack driven Case of fly-wheel, and the helical teeth of Case of fly-wheel inboard and very heavy be disengaged position.When the chain stay slide bar was withdrawed from downwards by spring pressure in bumper, the tooth bar engaged transmission that is fixed on the bumper outer tube Case of fly-wheel, this moment the Case of fly-wheel inboard helical teeth and very heavy be engagement.During as object of reference, tooth bar is that up-and-down movement provides power to flywheel circularly to tooth bar in flywheel center thus.

The above-described cam that on cover tire, is provided with, specifically, the cam on the cover tire is provided with a plurality of, and with the cover tire integral production, and cam and cam that other is only adjacent simultaneously are linearity at the conflict ground-surface.Here said linearity does not have the bye phenomenon when conflict in cover tire and road surface and takes place thereby reach.

Above-described Case of fly-wheel and comprise fly wheel assembly, specifically, then the round pointed tooth that is used for chain of original Case of fly-wheel to be changed system into the Case of fly-wheel of spur wheel, in addition the modulus with the helical teeth of Case of fly-wheel inboard suitably dwindles, and very heavy on the flat shelves of flywheel set up two groups and the distance setting of staggering again.And set up very heavy that two groups of distances that stagger are provided with on the modulus of the helical teeth that the dwindles the Case of fly-wheel inboard as described herein peace shelves, purpose is when allowing the rack driven Case of fly-wheel, the helical teeth of flywheel inboard and very heavy engagement nearby maximize the use the elastic force distance of the spring in the bumper.

More than said tooth bar can establish by double cog or 4 teeth, be at least 1 tooth, establish by the multi-face tooth back accent face that can conveniently wear and tear and use.

The engagement of above-described Case of fly-wheel and tooth bar is 1 group of work-saving device, and satisfactory for result for power-assisted, and bumper two lateral balances can be provided with on the floral disc of both sides simultaneously; Perhaps work-saving device is set jointly, is at least 1 group of work-saving device in the both sides of front and back floral disc.

The using method of motor-driven assistor for bicycle of the present invention is to be scrunched when starting bicycle and reaching certain speed by people, and during the increasing of the telescopic spring amplitude of bumper the inside, tooth bar is just implemented work done to flywheel circularly.

In sum, after technical scheme of the present invention was implemented, it had rational in infrastructure, low cost of manufacture, and it is convenient to use.Comparing with other vehicle, reduced use cost, for society, be beneficial to energy-conservationly, reduce to pollute, is conspicuous.

Description of drawings

Below with reference to the drawings and specific embodiments, will and realize that its purpose technical scheme is more clear to purpose of the present invention.In institute's drawings attached, identical parts are labeled in these accompanying drawings with identical label:

Fig. 1 is that the master of trailing wheel of the present invention right side floral disc looks partial schematic diagram;

Fig. 2 is the schematic rear view of Fig. 1;

Fig. 3 is that Fig. 2 overlooks partial schematic diagram;

Fig. 4 is that cover tire cam master looks scheme drawing;

The specific embodiment

Respectively establish by screw thread on the floral disc that preferred mode is both sides before and after bicycle and equal the shelves screw-tightened, please join and read accompanying drawing 1 to 4 by flywheel.At first the back vehicle frame of bicycle is changed system into the bumper of the back chain stay of similar a kind of motor bike, comprise the interconnection technique of bumper and vehicle frame.Then bumper lower end chain stay slide bar and common steel chain stay mouth are fixed.Again Case of fly-wheel 2 moduluses, 1.6 numbers of teeth 40 of setting up and fly wheel assembly are installed in the floral disc of the lengthening in the former outside that is used for chain flywheel 1, and the Case of fly-wheel of setting up 2 is rotating with original Case of fly-wheel 1; And the flat shelves of the flywheel in left side are anticlockwise direction and floral disc screw-tightened; And the helical teeth of inboard and very heavy engagement work done when the left side Case of fly-wheel is left-hand revolution.After the cover tire of the cam 5 that 8 to 10 straight flanges of integral production are formed, and original parts was then assembled in common mode, it was fastening by nut the rear axle rod to be installed in the fork pockets of chain stay mouth the outside.Then the upper end of tooth bar 3-2 is fastened on by screw 3-3 bumper outer tube 3 in establish on the rear side by the rear wall of boss 3-1 of integral production on tapped bore in, by the tooth fit engagement of the tooth and the Case of fly-wheel 2 of tooth bar 3-2 lower end; And tooth bar 3-2 is parallel cooperation with the chain stay slide bar 4 of bumper below.The work-saving device of existing trailing wheel both sides has been assembled and has been finished.And the work-saving device of front-wheel both sides, then the fork blade of former bicycle to be changed system into bumper, fix by the original vertical tube of front fork of bumper and top, by vertical tube of front fork by original parts and vehicle frame before pipe and bicycle front axle parts former state assembling, help the assembling of device assembling mode with reference to trailing wheel then.The work-saving device of both sides floral disc has been assembled and has been finished before and after the existing bicycle; Wherein brake gear adopts the line brake apparatus at steel ring both sides clamped-in style of known technology, and the skin of stopping establishes when increasing, and guarantees that the tire cam opens stop when jumping skin and the steel ring sky phenomenon of not stopping.

Claims

1. motor-driven assistor for bicycle, comprise bumper, it is characterized in that, be provided with cam (5) at cover tire, the Case of fly-wheel (2) that is provided with the cylindrical straight gear of setting up on floral disc meshes with the tooth bar (3-2) that rear side is provided with, and tooth bar (3-2) upper end is fixed on by screw (3-3) on the rear wall of the boss (3-1) on the outer tube (3) of bumper, and with bumper in the parallel cooperation of chain stay slide bar (4).

2. motor-driven assistor for bicycle according to claim 1 is characterized in that, said cover tire cam (5) simultaneously is linearity on the conflict road surface with other only adjacent cam.

3. motor-driven assistor for bicycle according to claim 1 is characterized in that, said Case of fly-wheel (2) and comprising has been set up very heavy that 2 groups of distances that stagger are provided with on the flat shelves of fly wheel assembly.

4. motor-driven assistor for bicycle according to claim 1 is characterized in that, said tooth bar (3-2) is established by double cog; Perhaps the four sides tooth is at least a tooth.

5. motor-driven assistor for bicycle according to claim 1 is characterized in that, said Case of fly-wheel (2) is 1 group of work-saving device with tooth bar (3-2) engagement, can be provided with simultaneously on the floral disc of both sides; Perhaps work-saving device is set simultaneously in the both sides of front and back floral disc; Be at least 1 group of work-saving device.