CN2455603Y

CN2455603Y - Assistant vibration absorbing front fork of bicycle

Info

Publication number: CN2455603Y
Application number: CN00253115U
Authority: CN
Inventors: 安静波
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-11-15
Filing date: 2000-11-15
Publication date: 2001-10-24
Anticipated expiration: 2010-11-15

Abstract

The utility model relates to a power-assisting-type shock-absorbing fork for a bicycle, which is composed of a shock-absorbing device and a power-assisting device, wherein, the shock-absorbing device is composed of an outer sleeve, a spring, a slide shaft and regulating screws, wherein, the spring, the slide shaft and the regulating screws are arranged in the sleeve; the power-assisting device is composed of a ratchet shaft, a ratchet m a reverse clutch, a flywheel connected with a bicycle wheel, an axle fixed at the lower end of the slide shaft, and a chain which is connected with the ratchet, the flywheel and the reverse clutch. The utility model has the advantages of simple structure, compactness, and favorable shock-absorbing and power-assisting effect, and the utility model can be used for non-motor vehicles such as a mountain bicycle, a common bicycle, a toy vehicle, etc.

Description

Bicycle power-assist formula Shock-absorbing fork

The utility model relates to a kind of bicycle damping, assisting device, specifically is bicycle power-assist formula Shock-absorbing fork.

Present existing bicycle damping, assisting device structure more complicated generally just are subjected to just doing when ground is upwards impacted energy storage or one way power-assist at wheel, and its energy storage, damping effect are undesirable.

The purpose of this utility model is to propose a kind of simple in structure, and volume is little, the bicycle power-assist formula Shock-absorbing fork of energy storage power-assist good damping effect.

The utility model major technique content is, this damping mini-motorcycle fork is by shock absorption device as shown in Figure 1, assisting device is formed, shock absorption device is by outer sleeve 3 that has vertical elongated slot and the spring 2 that is loaded in the sleeve, slide shaft 5, plus-minus screw 1 constitutes: assisting device is by the ratchet shaft 6 that is fixed on slide shaft 5 upper ends and be fixed on the ratchet shaft and be exposed at the ratchet 4 (or third wheel) of sleeve 3 outsides, be fixed on the reversing clutch 8 above the sleeve 3 flywheel 9 that links to each other with bicycle quick and the axletree 10 that is fixed on slide shaft 5 lower ends, connect ratchet, flywheel, the chain 7 of reversing clutch constitutes.

The structure of power-transfer clutch 8 as shown in Figure 2, form by chassis 8-4, spring 8-9 and connecting rod mechanism, connecting rod mechanism is constituted one group of parallel rocking bar and is fixed on the 8-4 of chassis by rocking bar 8-1, driven horizontal rocking bar 8-1 ', chain tooth bar 8-3, rocking bar 8-7, driven horizontal rocking bar 8-7 ', chain tooth bar 8-8 constitute another and organize parallel rocker mechanism, rocking bar 8-1,8-7 and connecting rod 8-5 form a plane double rocker mechanism simultaneously, its movement position is by positive stop 8-2,8-6 restriction, and connecting rod mechanism is loaded on the 8-4 of chassis; Spring 8-9 two ends are separately fixed on two chain tooth bars of 8-3,8-8, can make double rocker mechanism swing fast between two settling positions.

Technique effect of the present utility model is that this bicycle power-assist formula Shock-absorbing fork is simple in structure, small and exquisite, easy to use, it is to have installed a ratchet or third wheel on traditional telescoping spring damper additional, and this ratchet (or third wheel) links to each other with flywheel on being fixed on front vehicle wheel by chain and reversing clutch; Power-assist is effective in addition, and damping spring can both provide forward torque, energy conversion efficiency height to wheel in the utility model in the process that is compressed and extends.Simultaneously, " people-Che " system is considered as supporting the vibration system that weight constitutes by spring, calculates, determine the optimum value of spring and each parameter of sprocket wheel, obtain best damping power-assist effect by theory.This power-assist damping fork can be used for can increasing rider's comfort level on the on-mechanical power cars such as bicycle, toy car, and interest reaches laborsaving, the purpose of speedup.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of the utility model power-transfer clutch;

Fig. 3 is the utility model and installs and uses scheme drawing voluntarily.

1 plus-minus screw, 2 springs, 3 outer sleeves, 4 ratchets, 5 slide shafts, 6 ratchet shafts, 7 chains, 8 reversing clutches, 9 flywheels, 10 flywheels shaft, 8-1,8-7 rocking bar, 8-5 connecting rod, the driven horizontal rocking bar of 8-1 ', 8-7 ', 8-3,8-8 chain tooth bar, 8-2,8-6 positive stop, 8-9 spring, 8-4 chassis, 11 front truck crotch, 12 wheels.

Realize embodiment of the present utility model as shown in Figure 1, 2, this power-assist formula Shock-absorbing fork is loaded on the front vehicle fork position of bicycle, the front vehicle fork of bicycle is used instead be the utility model mountain bike power-assist formula Shock-absorbing fork.

Its principle of work is, when ground bossing and wheel met, slide shaft 5 will be pressed into sleeve 3 and with spring 2 compressions, power-transfer clutch 8 is under the pulling of chain 7 simultaneously, throw off on the right side in the left side engagement, power-transfer clutch 8 pulling chains 7, ratchet 4 and flywheel 9 rotate counterclockwise at this moment; The wheel that drive is attached thereto rotates forward; When spring recovers and extend, power-transfer clutch 8 is pulled down at the chain tooth bar 8-3 of engagement place, left side, rocking bar 8-1 and driven horizontal rocking bar 8-1 ' rotate counterclockwise downwards, make chain tooth bar 8-3 retraction and throw off with chain 7, simultaneously connecting rod 8-5 promotes another group rocking bar 8-7, the driven horizontal rocking bar 8-7 ' chain tooth bar 8-8 that clockwise rotates and extrapolate, and rapid and chain 7 meshes under the affecting of spring 8-9.Rotate counterclockwise at right side pulling chain and flywheel 9, wheel is rotated forward.

In addition, as shown in Figure 3, when this power-assist formula Shock-absorbing fork replaces front vehicle fork to use, power-transfer clutch 8 can be cancelled, chain 7 is separately fixed at the front and back point on the sleeve of left and right sides car front fork, simultaneously ratchet 4 is used instead third wheel and substituted, in this case, the damping mini-motorcycle of left and right sides fork provides moment of torsion to wheel respectively when length of spring compressed and elongation.Through the appropriate reconstruction to the car fork, this damping mini-motorcycle is pitched on the trailing wheel that also can be installed in bicycle and is used.

Claims

1, bicycle power-assist formula Shock-absorbing fork is made up of shock absorption device and assisting device, it is characterized in that shock absorption device is made of the outer sleeve that has vertical elongated slot (3) and the spring (2), slide shaft (5), the plus-minus screw (1) that are loaded in the sleeve; Assisting device is by the ratchet shaft (6) that is fixed on slide shaft (5) upper end and be fixed on the ratchet shaft and be exposed at ratchet (4) outside the sleeve (3), be fixed on the reversing clutch (8) above the sleeve (3), the flywheel that links to each other with bicycle quick (9) and be fixed on the axletree (10) of slide shaft (5) lower end, the chain (7) that connects ratchet, flywheel, reversing clutch constitutes.

2, according to the described bicycle power-assist of claim 1 formula Shock-absorbing fork, it is characterized in that reversing clutch (8) is by chassis (8-4), spring (8-9) and connecting rod mechanism are formed, connecting rod mechanism is by rocking bar (8-1), driven horizontal rocking bar (8-1 '), chain tooth bar (8-3) constitutes one group of parallel rocking bar and is fixed on the chassis (8-4), rocking bar (8-7), driven horizontal rocking bar (8-7 '), chain tooth bar (8-8) constitutes another and organizes parallel rocker mechanism, while rocking bar (8-1), (8-7) and connecting rod (8-5) form a plane double rocker mechanism, its movement position is by positive stop (8-2), (8-6) restriction, connecting rod mechanism is loaded on the chassis (8-4), and spring (8-9) two ends are separately fixed at (8-3), (8-8) on the chain tooth bar.