CN2168818Y - Gear positioner for non-chain bicycle - Google Patents

Abstract

The utility model relates to a gear positioning device for chainless bicycles. A convex couple body on one end of an inner lining shaft is mainly clamped with a concave key groove of a bevel gear mutually, and the inner lining shaft is sheathed with a plurality of bearings, shims and snap rings consecutively so as to solve the problem that the gear is probable of dislocating, and the purpose of element standardization is achieved. In addition, a through hole on one end surface of a five-way pipe is matched with an inspection piece of a close cover so as to inspect and replace elements.

Description

Gear positioner for non-chain bicycle

The utility model relates to a kind of gear positioning device of chain-less bicycle, mainly be that liner axle and bevel gear are with concavo-convex clamping structure, cooperate central siphon and five-way pipe to weld, simultaneously the liner axle wears bearing and pad, clasp, to strengthen the gear locating effect, stop gear may interlock the problem of dislocation, cooperate five-way pipe capping one checking-observing piece and can facility inspect the inner member that changes the outfit, with the effect that multiplies each other that component specificationization is provided and is convenient to keep in repair.

The applicant once obtained No. the 80202368, Taiwan patent " gear positioning device of chain-less bicycle ", because of it has breakthrough practical effect, illiteracy obtains the generally employing on the market, effect that this case is emphasized, two ends that are the mat positioning seat that covers gear are set as pearl groove, ball anchor ring respectively, after the liner axle sleeve is worn bevel gear, positioning seat and is held the pearl plug, utilize between the commissura of bevel gear and settle ball, also insert and put ball and hold the pearl plug jointly with the ball anchor ring, use the design that suitable lengthening coats ball, make gear transmission better in polarization; The practical function of this case is splendid, is for having the product of value deeply.

But in research and experiment Hou discovery constantly, this case still has partly and need wait to improve;

1. gear still has the possibility of dislocation: because of between the central siphon of this case and plug pipe only the contact ring for burnishing surface paste state, there is no firm blocking design to each other, hereat for a long time under the influence of car body transmission vibrations, central siphon is easily managed the possibility that has the slippage pine to move gradually with plug, be that central siphon gradually causes its spacing away from the plug pipe and strengthens, cause central siphon and no longer compress the plug pipe, make plug pipe the place ahead hold the pearl plug with past retrolisthesis, influence the location of bevel gear and ball, the defective that two orthogonal bevel gears have interlock gradually to break away from.

2. because the five-way pipe of this case is whole closed, after each member such as umbrella tooth is inserted, if wherein part need give and changing the outfit, after then needing whole central siphon removed by vehicle frame, the part that changes the outfit that can after central siphon breaks away from, have living space, it is comparatively difficult to change the outfit.

Positioning seat, hold pearl plug and unnormalized part, must pay tooling cost and time again and can make, for cost and make comparatively trouble, and during assembling, the loose packed ball is difficult for assembly quickly, hereat the assembling of this case, tooling cost have higher defective.

Main purpose of the present utility model is: the gear positioning device that a kind of chain-less bicycle is provided, mainly be to design with concavo-convex blocking at liner axle and bevel gear collocation, the bearing Positioning Gear that cooperates the normalization part, and pad, clasp are set in the auxiliary positioning effect of liner axle, provide the steady reality in location and the assembling of gear more easy, mat is fastened structure to improve the possibility of gear dislocation, improves practicality effectively.

Another purpose of the present utility model is: the gear positioning device that a kind of chain-less bicycle is provided, it is to differ from central siphon one end at the five-way pipe to offer a through hole, cooperation is inspected mortice lock and is sealed the member that covers in the five-way pipe, be convenient to momentarily inspect, change the outfit part, also or through this be added into lubricating oil, make the effect of keeping in repair the part that changes the outfit have more alerting ability and height convenience.

The purpose of this utility model is realized by following technical scheme.A kind of gear positioning device of chain-less bicycle, the central siphon of the relative rear side of five-way pipe be inserted in one so that its socket bevel gear must with the liner axle of the sheathed mutual orthogonal of bevel gear of crank shaft, it is characterized in that:

Relative liner axle one end of five-way pipe is held and the central siphon solid welding so that connect for connecing end,

Liner axle one end week, side established a plurality of so that wear and have the protruding in body of a plurality of recessed keyway bevel gears in one, and wore a plurality of bearings and pad, clasp behind the relative bevel gear of liner axle in order.

The purpose of this utility model can also further be realized by following technical scheme.The gear positioning device of aforesaid chain-less bicycle is characterized in that: the five-way pipe differ from connect the end other face run through a through hole, be provided with a checking-observing piece that is used for the capping through hole.

The utility model is compared with prior art had following multiple advantages:

1. the location of bevel gear is more sturdy: because of the protruding recessed keyway to body and bevel gear outside the liner axle is fastened, guaranteed the excellent synchronous effect that bevel gear and liner axle one drive, fasten the location securely with clasp more, and central siphon welds in connecing end, make the liner axle not only have no the get loose misgivings of central siphon of this case, reach the steady real effect of liner shaft alignment increasingly further, guarantee synchronism and precision drive effect between the mutual interlock of two bevel gears.

2. most is the normalization element: such as co-operating members such as bearing, clasp, pads, be all the normalization goods, can purchase assembling via the market half-blank, reduce tooling cost and man-hour, and can improve the gear locating effect.

3. it is very easy to change the outfit: lift behind the through hole of five-way pipe when checking-observing piece breaks away to turn over, via through holes can be inspected and see the in-to-in element, directly annotate lubricating oil in bevel gear if need, all very convenient, changing the outfit element simultaneously also can via through holes and maintenance process quickly smoothly, improve maintenance speed and quality after sale, reduce cost and also strengthen services client prestige, it is better to make the market sell reaction.

Further specify architectural feature of the present utility model and purpose below in conjunction with accompanying drawing.

Fig. 1 is an element exploded view of the present utility model.

Fig. 2 is an assembled sectional view of the present utility model.

The utility model is a kind of gear positioning device of chain-less bicycle, and please referring to Fig. 1, Fig. 2, five-way pipe 62 relative liner axle 61 1 ends are to connect end 622, differ from liner axle 61 in addition end wear a through hole 621 that connects end 622 mutually; The all sides of liner axle 61 1 ends are convexly equipped with a plurality of protruding in body 611 again, so that liner axle 61 through connect the end 622 be placed through in the five-way pipe 62 after, a bevel gear 3 that is arranged with corresponding protruding recessed keyway 31 to body 611 in the inboard is set in liner axle 61, make bevel gear 3, behind the 4 mutual orthogonals, renew to give and wear a double-type bearing 2 and a pad 21, the relative clasp of one clasp 22(liner axle is also established groove), treat that aforementioned components installs, central siphon 6 cover covers liner axle 61 outsides and the one end is abutted against in connecing end 622 so that give weldering and establish firmly, and checking-observing piece 7 immediately capping through hole 621 be affixed on five-way pipe 62 outsides with lock.

Claims (2)

1, a kind of gear positioning device of chain-less bicycle, the central siphon of the relative rear side of five-way pipe be inserted in one so that its socket bevel gear must with the liner axle of the sheathed mutual orthogonal of bevel gear of crank shaft, it is characterized in that:

Relative liner axle one end of five-way pipe is held and the central siphon solid welding so that connect for connecing end,

Liner axle one end week, side was provided with a plurality of so that wear and have the protruding in body of a plurality of recessed keyway bevel gears in one, and wore a plurality of bearings and pad, clasp behind the relative bevel gear of liner axle in order.

2, the gear positioning device of chain-less bicycle according to claim 1 is characterized in that: the five-way pipe differ from connect the end other face run through a through hole, be provided with a checking-observing piece that is used for the capping through hole.

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