CN2288913Y

CN2288913Y - Endless chain transmission for bicycle

Info

Publication number: CN2288913Y
Application number: CN 96209820
Authority: CN
Inventors: 李雪玉
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-05-03
Filing date: 1996-05-03
Publication date: 1998-08-26
Anticipated expiration: 2006-05-03

Abstract

The utility model discloses a chain wheel for bicycles, which mainly relates to a transmission system for bicycles. The utility model is composed of a chain wheel body (1), a slippage chain gear ring (5) arranged on the outer edge of the chain wheel body (1), a slippage inner gear ring (3) arranged on the slippage chain gear ring (5), a gear section (2) fixed on the V-shaped girder of the bicycle and two small gears which are arranged on the chain wheel body (1) and are engaged with the slippage inner gear ring (3) and the gear section (2). When a rider needs pedal forcibly, the slippage chain wheel can be used for increasing the speed ratio of wheels and pedals, and the bicycle forcibly pedaling time can be prolonged.

Description

A kind of bicycle chain wheel

A kind of bicycle chain wheel relates generally to bicycle transmission system.

The various ordinary bicycles that people use and the chain wheel of variable speed bicycle, all be a kind of whole chain wheel by chain gear, this driving system is for ordinary bicycle, when people are pedaled pedal in big moment scope the time, motion quickly can not be used power in the past fully.

The purpose of this utility model provides a kind of chain wheel that trackslips, and makes pedal when big moment range motion, and it is big that the revolution ratio of wheel and pedal becomes, and can prolong the time to pedal of exerting oneself.

The purpose of this utility model is to realize like this, a kind of bicycle chain wheel, it is characterized in that it by the chain wheel body, be installed in the Chain Gear ring that trackslips on the external edge of chain wheel, be installed in the interior toothed ring gear that trackslips on the Chain Gear ring that trackslips, be fixed on the gear segment on the bicycle shelf and form with the interior toothed ring gear that trackslips, gear segment ingear and the miniature gears that is installed on the chain wheel body.

Above-mentioned bicycle chain wheel, its Chain Gear ring that trackslips are can only trackslip forward by being installed in the ratchet on the external edge of chain wheel, making the Chain Gear ring that trackslips; Toothed ring gear is by being installed in the ratchet on the Chain Gear ring that trackslips, interior toothed ring gear can only being trackslipped backward in trackslipping.

Above-mentioned bicycle chain wheel, its miniature gears that is installed on the chain wheel body can be 2, and becomes 180 °.

Above-mentioned bicycle chain wheel, it is installed in the top that on the chain wheel body and gear segment pinion are installed in bicycle shelf V-type beam.

Use the bicycle of this chain wheel, make people by bike the time, when pedal is exerted oneself, can fully make strength, and the time is long than ordinary bicycle.

Further describe embodiment of the present utility model below in conjunction with accompanying drawing

Fig. 1 is the block diagram of a kind of bicycle chain wheel described in the utility model

Fig. 2 is the cutaway view of A-A direction among Fig. 1

Among Fig. 1, this bicycle chain wheel is made up of chain wheel body 1, gear segment 2, slip internal tooth tooth Fig. 3, miniature gears 4, the Chain Gear ring 5 that trackslips.The array mode of chain wheel body 1 and the Chain Gear ring 5 that trackslips is the same with the flywheel of ordinary bicycle, because the ratchet effect in the ratchet device, the feasible Chain Gear ring 5 that trackslips can only trackslip forward and can not trackslip backward, toothed ring gear 3 is installed in bicycle shelf one side in trackslipping, trackslip Chain Gear ring 5 and trackslip in 3 of toothed ring gears also adopt ratchet device, by ratchet make trackslip in toothed ring gear 3 Chain Gear ring 5 that trackslips relatively can only slide backward and can not trackslip forward.Toothed ring gear 3 meshes with two miniature gearss 4 again in trackslipping, when miniature gears 4 one of them be installed in that gear segment 2 on the bicycle shelf meets and when meshing, miniature gears will rotate, and at this moment miniature gears 4 meshes with the interior toothed ring gear 3 that trackslips again, so toothed ring gear 3 rotates forward in promoting to trackslip.Toothed ring gear 3 Chain Gear ring 5 that trackslips relatively can only trackslip backward in because trackslip, and can not rotate forward, and it is being with the Chain Gear ring 5 that trackslips together to rotate forward again like this, makes to trackslip the rotating speed of Chain Gear ring 5 greater than the rotating speed of chain wheel body 1.Such result is that the Chain Gear ring 5 that trackslips will spur chain quickly, and bicycle is advanced quickly.Because motion has certain resistance, bicycle can not be drawn fast at once, and at this moment the resistance of pedal strengthens, and the kinematic velocity of pedal slows down, so this section motion is arranged at the moment the best part.It is for 2 pedals being moved in this scope, same effect all being arranged that two miniature gearss are set.

Use this bicycle chain wheel.The cyclist is in big moment, be in the scope of level each 45 up and down forward, and little moment, be in the zones of different of little moment scope in each the 45 scope of front and back aspect vertical promptly, pedal turns over identical angle, and the part of big moment can make bicycle multirow stretch journey than the part of little moment.That is to say that when pedal was in the big moment scope, bicycle seemed to advance at the top gear of derailleur; When pedal was in the little moment scope, bicycle seemed to advance at the bottom gear of derailleur.

Trackslip Chain Gear ring 5 and trackslip in toothed ring gear 3 make two bodies, and the internally toothed annulus that the trackslips Chain Gear ring 5 that trackslips relatively can trackslip backward, purpose is that cycle chain and pedal can be reversed.

In the present embodiment, the ratchet device that is adopted is that the industry is existing, the ten minutes proven technique, so needn't describe one by one at this.

Claims

1, a kind of bicycle chain wheel is characterized in that: it by chain wheel body (1), be installed in the Chain Gear ring that trackslips (5) on chain wheel body (1) outer rim, be installed in the interior toothed ring gear (3) that trackslips on the Chain Gear ring that trackslips (5), be fixed on the gear segment (2) on the bicycle V-type beam and form with the interior toothed ring gear (3) that trackslips, gear segment (2) ingear and the miniature gears (4) that is installed on the chain wheel body (1).

2, bicycle chain wheel according to claim 1, the Chain Gear ring (5) that it is characterized in that trackslipping are by being installed in the ratchet on chain wheel body (1) outer rim, the Chain Gear ring that trackslips (5) can only being trackslipped forward; The interior toothed ring gear (3) that trackslips is can only trackslip backward by being installed in the ratchet on the Chain Gear ring that trackslips (5), making the interior toothed ring gear (3) that trackslips.

3, a kind of bicycle chain wheel according to claim 1 and 2, the miniature gears that it is characterized in that being installed on the chain wheel body (1) can be 2, and becomes 180 °.

4, bicycle chain wheel according to claim 1 is characterized in that gear segment (2) is installed in bicycle shelf V-type beam top.