CN2477521Y

CN2477521Y - Bicycle translational rear iron device

Info

Publication number: CN2477521Y
Application number: CN01219080U
Authority: CN
Inventors: 陈世民
Original assignee: Xinhao City Industry Co ltd
Current assignee: Xinhao City Industry Co ltd
Priority date: 2001-04-29
Filing date: 2001-04-29
Publication date: 2002-02-20
Anticipated expiration: 2011-04-29

Abstract

A translation type rear iron device for bicycle is composed of a rear iron at the rear fork end of bicycle, a rear axle and speed variator of bicycle arranged on said rear iron in slide mode, a rear iron body with a slide body with axle hole, a limiting slot outside said rear iron body and extending to rear end, a guide slot in said limiting slot and extending to rear end, and a nut locked to the rear axle passing through said axle hole.

Description

Iron device behind the bicycle parallel-moving type

The utility model is about iron device behind a kind of parallel-moving type of bicycle.

The Rear Ends/Dropouts of Regular Bicycle all is formed with a back iron device, and is provided with a chute and forms to collude and hold shape, then is provided with screw in colluding special shape outer end, wherein, this chute is to wear locking or to do slippage in good time for rear axle, uses the elasticity of adjusting chain, and its screw is then for the erection of transmission locking in addition; And it is should back iron device many earliest directly with vehicle frame is one-body molded or welding is fixed; so promptly comparatively fragile because of this scratching part of commonly using back iron device itself; pull under the towing tension being subjected to the change-speed box long period of operation; the situation of fracture takes place in regular meeting; therefore, have then back iron device is made as individual member, adopt spiral shell to establish and be installed between Seat stay and Chain stay; when its fracture damage, can directly dismantle and be beneficial to replacing.

Yet this back iron device still has its shortcoming and waits to overcome: at first, this intensity of commonly using back iron device is relatively poor, and the shortcoming of easy stressed fracture is still arranged, and for consumers, can increase the cost of replacing; Secondly, this commonly uses the elasticity adjustment that back iron device is difficult for doing chain, when adjusting the position of rear axle, be earlier its lock spiral shell to be loosened, again center shaft is pulled to the appropriate location, screwed again, but in its adjustment process because of making effective support, so easily when the lock spiral shell is not locked as yet, its center shaft promptly is subjected to chain and pullling of associated components and moves, and can't be adjusted to the tram, and the lock spiral shell of the solid center shaft of this spiral shell often because of locking really or the long-time vibrations of car body get loose the phenomenon of slippage, and influence the tightness of chain, and then cause and to finish variable speed operation smoothly; Moreover, because this chute of commonly using back iron device is shorter, adjusting range is limited to; Therefore, at many shortcomings of above-mentioned back iron device, necessity of further improvement is arranged.

The purpose of this utility model is to provide iron device behind a kind of bicycle parallel-moving type, can make the adjustment of chain elasticity simpler and easy really, and can install for the brake of disc brake formula bicycle, reach good brake effect, it has firm, the difficult advantage that produces the slippage that gets loose of structure simultaneously.

In order to achieve the above object, the utility model provides iron device behind a kind of bicycle parallel-moving type, and comprising: one is connected with the back iron in the back fork of bicycle end, and the rear axle of this bicycle and change-speed box are located on this back iron; It is characterized in that:

This back iron has a back iron body, is sliding combined with a slide mass that is provided with axis hole on this back iron body; This iron body outside, back is provided with a position-limited trough and extends to the rear end, in this position-limited trough, establish a guide groove and extend to the rear end, this slide mass is smooth to be embedded in this position-limited trough, one nut is locked on this rear axle that passes this axis hole, this slide mass one side convexes with a guide block, and this guide block is snug fit in this guide groove.

Iron device behind the described bicycle parallel-moving type, it is characterized in that: the limiting stopper of this extensible tool location edge in slide mass bottom, this location edge is resisted against this iron body bottom, back, this limiting stopper is provided with a screw for this change-speed box locking, the edge that supports of replacing this change-speed box is then extended in this limiting stopper bottom, screws in the rear end that two adjustable bolts are resisted against this back iron body in this slide mass rearward end in addition.

Iron device behind the described bicycle parallel-moving type is characterized in that: this back iron body can be fixed with the mutual screw lock of Seat stay, Chain stay of this bicycle respectively.

Iron device behind the described bicycle parallel-moving type is characterized in that: this back iron body also can be respectively be welded to each other fixing with Seat stay, the Chain stay of this bicycle.

Iron device behind the described bicycle parallel-moving type is characterized in that: the axis hole rear side of this slide mass can add a prepared hole that supplies this rear axle to wear.

Iron device behind the described bicycle parallel-moving type is characterized in that: the slide mass top of this back iron can oblique extension one microscler permanent seat, and a dishful of formula brake is erected on this permanent seat.

Iron device behind the described bicycle parallel-moving type is characterized in that: this permanent seat front end and end are respectively equipped with the lug of a tool through hole, and two pivot ears of this disc brake are locked in respectively on this two through hole.

Iron device behind the bicycle parallel-moving type of the present utility model, it is to be connected with a back iron body on the back fork of bicycle end, set up on it one can with the slide mass of slippage before and after its work, and members such as rear axle, change-speed box are worn be locked on the slide mass, can control the elasticity of chain by adjusting slide mass front and back translation, the elasticity that can reach chain is adjusted effect.

Iron device behind the bicycle parallel-moving type of the present utility model, because this interlock body is erected with a nut and the rear axle that wears on it can be locked, thereafter the end is provided with two adjustable bolts, can replace mutually with the rearward end of back iron body, so can be by the degree of tightness adjustment of lock spiral shell and adjustable bolt, the adjustment that can force the interlock body to do the front and back translation is easily fixed, and makes chain setting simpler and easy really.

Iron device behind the bicycle parallel-moving type of the present utility model, can be at the permanent seat of iron slide mass top, back oblique extension one tool two through holes, fix on it for disc brake, brake can be moved with slide mass, make brake keep best normal danger with video disc; By this, make integral body can reach best brake effect.

For allowing to that structure of the present utility model, feature and effect are had further understanding, cooperate graphic detailed description as back with preferred embodiment now:

Brief description of drawings:

Fig. 1: be the bicycle overall appearance scheme drawing that a kind of embodiment of the utility model is installed in transmission side.

Fig. 2: the solid combination scheme drawing that is embodiment shown in Figure 1.

Fig. 3: the perspective exploded view that is embodiment shown in Figure 1.

Fig. 4 A, Fig. 4 B: the translation adjustment action scheme drawing that is embodiment shown in Figure 1.

Fig. 5: be the overall appearance scheme drawing that the another kind of embodiment of the utility model is installed in disc brake formula bicycle.

Fig. 6: be the three-dimensional combination of embodiment scheme drawing shown in Figure 5.

Fig. 7 A, Fig. 7 B: be that embodiment shown in Figure 5 adjusts the action scheme drawing.

See also shown in Figure 1ly, iron device behind the bicycle parallel-moving type of the present utility model is iron A after being connected with a parallel-moving type on the Rear Ends/Dropouts, and its displacement of mat adjusts chain 70 elasticities, makes bicycle remain on the optimal drive state; Wherein, this back iron A comprises a back iron body 10 and a slide mass 20 (please cooperate and consult Fig. 2, shown in Figure 3);

Back iron body 10, be with Seat stay 30 and Chain stay 40 mutual spiral shells if integrally welded, a cross spacing groove 11 is extended to the back-end by central portion in its outside, the position-limited trough 11 central authorities horizontal guide groove 12 that runs through that also extends back can wear for rear axle 50;

Slide mass 20, it is L-shaped body, just can smoothly be embedded on the position-limited trough 11 of above-mentioned back iron body 10, on it and be provided with two axis hole 21 that runs through and prepared holes 22, and axis hole 21 is erected with a nut 23, locked after can wearing axis hole 21 for rear axle 50, the axis hole 21 and 22 of the prepared holes of slide mass 20 inboards convex with a guide block 24 in addition, be able to slippage in guide groove 12, and slide mass 20 bottom appropriate locations extend the limiting stopper 25 of a tool ladder, make its end difference form a location edge 251, to replace iron body 10 bottoms, back, the multiple screw 252 of establishing thereon, the bottom is extended one and is supported edge 253, with solid and replace for change-speed box 60 mutual spiral shells respectively, respectively establish an adjustable bolt 26 in slide mass 20 rear end upper and lower sides again, its adjustment of mat can install mutually with back iron body 10 rearward end.

See also shown in Fig. 4 A, Fig. 4 B, it is the translation adjustment action scheme drawing of iron behind the utility model, because back iron A of the present utility model is by back iron body 10 and slide mass 20 combinations, thus can on back iron body 10, do relative slippage by slide mass 20, can be in order to adjust the elasticity of chain 70; Before the adjustment, earlier the lock spiral shell on the slide mass 20 is loosened, allow slide mass 20 and back iron body 10 get loose, can utilize screwing or loosening of two adjustable bolts 26, make slide mass 20 backward or move forward together with the members such as rear axle 50, change-speed box 60 of locking on it, wherein, because of slide mass 20 is the location edge 251 and guide block 24 structures of its exterior contour of mat, limiting stopper 25 respectively, each is set or sliding supporting mutually with position-limited trough 11, bottom and the guide groove 12 of back iron body 10 to make it, to guarantee the producing front and back translation motion, make back iron A tool translation adjust effect.

See also shown in Figure 5, it is the bicycle overall appearance scheme drawing of the utility model disc brake side, cooperate Fig. 6, Fig. 7 A, shown in Fig. 7 B, iron A is for cooperating the disc brake bicycle behind the utility model, be can be in the oblique extension one microscler permanent seat 27 of slide mass 20 top ends for brake 80 installations, and establish the lug 272 of a tool through hole 271 respectively in its front end and terminal appropriate location, two frame ears 81 of brake 80 can be locked in respectively on the through hole 271 of two lugs 272, this brake 80 can be moved with slide mass 20, when video disc 90 affects together with slide mass 20 translations of back iron A, this brake 80 can move with slide mass 20, guaranteeing and video disc 90 keeps best normal danger, and then reach best brake effect; Limiting stopper 25 can not established in these slide mass 20 bottoms.

Slide mass 20 of the present utility model has the design of prepared hole 22, because it is the outside that is positioned at axis hole 10, so after rear axle 50 wears with it, can make it again toward outside displacement, and it is maximum that chain 70 can be reached, and the tightness adjustment can be used the limit of raising adjustment.

Hereby learnt by above explanation that the utility model really has following advantage:

1, tool chain elasticity is adjusted function: the utility model is with speed changer and rear axle locking On slide mass, and sliding translation before and after can on rear iron body, doing relatively by slide mass, But make its gang speed-variation device and rear axle also do the front and back translation, use further adjustment chain degree of tightness Degree.

2, operation adjustment is easy: the utility model is to adjust spiral shell by establish two in the slide mass rear end Bolt can be supported mutually with the rear end of rear iron body it, and utilizes a lock spiral shell that the rear axle spiral shell is solid On the Yu Houtie, can cooperate adjust by the lock spiral shell degree of tightness adjustment of bolt, accurately, easily will Chain is adjusted to best tightness, makes to reach best driving effect.

3, have prepared hole: slide mass axis hole rear side of the present utility model is to be equipped with a preparation Pore structure, when making rear axle wear collocation with it, its position is further backward displacement more, mat This can make chain be adjusted to maximum interference.

4, the disc brake type bicycle of can arranging in pairs or groups, and do not affect the brake effect: because general disc brake system System is to be provided with a disc structure, so the utility model is in the oblique extension in rear iron slide mass top The holder of one tool, two through holes to be installed on it for disc brake two pivot ears respectively, makes Brake can slide with slide mass, by this, and when video disc is adjusted displacement with the chain degree of tightness, still Can make brake and video disc remain on best normal danger, and unlikely impact brake effect.

5, stabilized structure, be difficult for getting loose: slide mass of the present utility model is except utilizing its main body wheel The location edge of wide, guide block and limited block respectively with stopper slot, guide groove and the bottom of rear iron body Section does outside the sliding location of relative embedding, and more mat lock spiral shell and two is adjusted bolt, makes really jail of slide mass Set firmly on rear iron body, and can produce the phenomenon of the slippage that gets loose by the anti-skidding body, so whole Body has firm lock solid structure.

In sum, the utility model translational rear iron device of bicycle provides a kind of Only have easy chain elasticity and adjust function, the prepared hole design is more arranged, maximum tight to do The preparation adjustment of degree can be installed for the brake of disc brake bicycle in addition, does not still affect its brake Effect adds its stabilized structure, the unlikely generation slippage that gets loose, and makes integral body have the reality of industry The property used.

Claims

1, iron device behind a kind of bicycle parallel-moving type comprises: one is connected with the back iron in the back fork of bicycle end, and the rear axle of this bicycle and change-speed box are located on this back iron; It is characterized in that:

2, iron device behind the bicycle parallel-moving type as claimed in claim 1, it is characterized in that: the limiting stopper of a tool location edge is extended in this slide mass bottom, this location edge is resisted against this iron body bottom, back, this limiting stopper is provided with a screw for this change-speed box locking, the edge that supports of replacing this change-speed box is then extended in this limiting stopper bottom, screws in the rear end that two adjustable bolts are resisted against this back iron body in this slide mass rearward end in addition.

3, iron device behind the bicycle parallel-moving type as claimed in claim 2 is characterized in that: this back iron body is fixed with the mutual screw lock of Seat stay, Chain stay of this bicycle respectively.

4, iron device behind the bicycle parallel-moving type as claimed in claim 2 is characterized in that: this back iron body is welded to each other fixing with Seat stay, the Chain stay of this bicycle respectively.

5, iron device behind the bicycle parallel-moving type as claimed in claim 1 is characterized in that: the axis hole rear side of this slide mass adds a prepared hole that supplies this rear axle to wear.

6, iron device behind the bicycle parallel-moving type as claimed in claim 1 is characterized in that: the oblique extension one microscler permanent seat in the slide mass top of this back iron, a dishful of formula brake is erected on this permanent seat.

7, iron device behind the bicycle parallel-moving type as claimed in claim 6, it is characterized in that: this permanent seat front end and end are respectively equipped with the lug of a tool through hole, and two pivot ears of this disc brake are locked in respectively on this two through hole.