CN2234910Y - Speed-regulating chain disc for bicycle - Google Patents
Speed-regulating chain disc for bicycle Download PDFInfo
- Publication number
- CN2234910Y CN2234910Y CN 95202506 CN95202506U CN2234910Y CN 2234910 Y CN2234910 Y CN 2234910Y CN 95202506 CN95202506 CN 95202506 CN 95202506 U CN95202506 U CN 95202506U CN 2234910 Y CN2234910 Y CN 2234910Y
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- CN
- China
- Prior art keywords
- dish
- sizing dish
- sizing
- big
- guide groove
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Abstract
The utility model relates to a speed regulating chain disc for bicycles, which is composed of a diameter changing chain disc composed of a small sizing disc, a large sizing disc and a fan-shaped plate and a manual controller. The column head of the controller is connected with the locking mechanism of the large sizing disc movably, and the locking block of the locking mechanism is connected with the gear shifting tooth-shaped slot of the small sizing disc. Diameter changing is realized by the slip connection of the guide column of the fan-shaped plate and the guide slots of the large and the small sizing discs. The utility model has the advantages of simple structure, flexible speed changing, reliable operation, low workpiece abrasion and labor-saving ride.
Description
The utility model belongs to bicycle speed-regulating device.
Disclosed utility model patent " automatic stepless speed-changing device for bicycle ", the patent No. 86208742.2, be a kind of with crank power, pass through lever, make six sector ele-ment of interlock on six movable axis of sizing dish, do swing between minimum and ultimate range, realize the sprocket wheel reducing that six sector ele-ment constitute, lever is under the effect of extension spring, make sprocket diameter remain on maximum position as far as possible, the shock damping action that is produced by oil cylinder when sprocket diameter becomes big is cushioned, the analysis showed that, during moment balance that only antagonistic force of suffered spring tension and chain produces movable axle center on sector ele-ment, sprocket wheel just can be stabilized in certain position, in fact this stablizing is temporary transient, this is owing to be subjected to the rate of onset of car, the road surface, the influence of composite factors such as crank is stressed, sprocket diameter is stabilized on the certain value, particularly when flat-out acceleration, sprocket diameter diminishes, and converter speed ratio diminishes on the contrary, this shows, the speed of a motor vehicle is difficult to grasp, moreover this mechanism is among the relative motion all the time, and component wear is accelerated, and influences service life, in addition, to consume a part of power all the time with the balance spring pulling force in riding.
The utility model is a kind of improvement to above-mentioned toric transmission, and its objective is provides a kind of reducing chain drum speed regulation device that combines with the hand gear controller, to overcome the deficiency of aforementioned toric transmission.
The technical scheme that realizes above-mentioned purpose is:
Go up uniform 6 guide grooves (4) radially with the little sizing dish (8) of crank (13) riveted joint, be located at this dish outside and go up uniform 6 sets of curves guide grooves (5) with the concentric also big in relative rotation sizing dish (7) of this dish, form by two equidistant curve guide grooves for every group, the reducing chain drum of little sizing dish (8) opposite side is made of 6 quadrants (6), and each quadrant is by two guide pillars (1) of the radial array on it and radially guide groove (4) and curve guide groove (5) sliding block joint accordingly; Big sizing dish (7) outside is provided with lockout mechanism, be to be provided with locating notch in the middle of the crescent moon prominent (15), communicate with the guide groove (12) that " " shape slide plate (18) is housed, in the guide groove of slide plate (18) upper end lock dog (11) is housed, the plurality of tooth-shaped locked groove (10) on 60 ° of corresponding peripheries of central angle of this lock dog and little sizing dish is connected mutually; Variable-speed controller is fixed on frame five-through axle sleeve top by stay bearing plate (31), " " shape bar (26) in its housing (23) slides up and down in the sleeve that is provided with bearing spring disk (20) (29), and by the supporting of the small pressure spring (22) outside the sleeve (29), housing bottom is provided with annular backing ring (19), housing top is provided with back taper thrust circle (25), and big stage clip (21) is housed between the bearing spring disk (20), cable wire (27) is fastening by the wired assembly (30) of bearing spring circle spring bottom by the upright opening of " " shape bar, cable wire (27) other end is connected to the control handle on the handlebar, the horizontal ends of " " shape bar crouches and is contained in the chute (28) of housing both sides, the affixed column cap (24) that stretches out housing of an end wherein, column cap (24) contacts with the crescent moon prominent (15) of big sizing dish.
Radially guide groove (4) both sides of little sizing dish (8) respectively are provided with an auxiliary guide groove (3), engage with the auxiliary platform (2) of leading of quadrant (6);
The trough rim (9) that interior flexible bolt with flange (14), the cylindrical excessively of big sizing dish (7) are provided with is rotationally connected with little sizing dish (8);
Be installed with wire spring (16) on the locating notch that crescent moon is dashed forward, and suppress at " " shape slide plate knuckle place;
In the quadrant (6), wherein symmetrically arranged two arc edge is provided with sprocket, and all the other arc edges of 4 are provided with guide chain groove.
Further specify the principle of work of the technical program below with drawings and Examples.
Accompanying drawing 1, big or small sizing dish and reducing chain drum combination scheme drawing;
The lockout mechanism scheme drawing of accompanying drawing 2, big sizing dish;
Accompanying drawing 3, the speed setting controller structural representation.
As shown in Figure 1, in the ordinary course of things, lock dog (11) is connected with the serrate slot (10) of little sizing dish (8), size sizing dish locks mutually, crank (13) will drive two dishes simultaneously and rotate, and by the guide pillar (1) of each quadrant, the reducing chain drum also rotates synchronously, if this moment, guide pillar was positioned at the respectively top of guide groove (4) radially of each curve guide groove (5) of big sizing dish (7) and little sizing dish (8), then the reducing chain drum is a minimum diameter.
Controller is installed on the frame five-through axle sleeve, its housing chute (28) is perpendicular to horizontal surface, and make column cap (24) termination near big sizing panel surface, when moving to the chute top on the column cap, the locating notch of the crescent moon on the Ying Yuda sizing dish prominent (15) is connected mutually, its course of action such as Fig. 2, shown in 3, when governor handle (accompanying drawing is not shown) affects cable wire (27), carry on the bearing spring disk (20) of controller, make " " shape bar (26) move to the top of housing chute (28) by small pressure spring, prominent and the pressurized of crescent moon of the big sizing dish of column cap (24) contact, this moment, the big small pressure spring pressurized of controller was store power, rotation along with big sizing dish, when the locating notch on the crescent moon prominent (15) moves to the column cap position, column cap springs into locating notch under the effect of big small pressure spring, big sizing dish stops operating, simultaneously, pushing away " " shape slide plate (18) moves up, make the lock dog (11) of its end break away from little sizing dish serrate slot (10), little sizing dish is in independent rotary state, when crank (13) when rotating counterclockwise, by guide pillar each quadrant is slided simultaneously along each guide groove, under the chain tension device cooperates (accompanying drawing is not shown), the diameter trend of reducing chain drum increases.
Be equivalent to common 36 toothed chain dishes during this routine reducing chain drum minimum diameter, its speed ratio i=225 (being equipped with standard 16 tooth flywheels), when reducing chain drum diameter is maximum, speed ratio i=338, identical with general change-speed box, guide pillar curve guide groove and radially guide groove slide to tail end from top, 60 ° of corners of relatively little sizing dish, the little sizing dish of this example is all established 14 serrate slots in 60 ° of cooresponding peripheries of central angle, the speed change that is about to from low to high is divided into 14 grades.After selecting certain speed ratio, unclamp governor handle, column cap (24) resets rapidly under the effect of big small pressure spring (21) (22), is installed in the wire spring (16) in the locating notch, " " shape slide plate is resetted, lock dog (11) is connected with the serrate slot of selected gear, recovers large and small sizing dish lock-out state, and the reducing chain drum is locking simultaneously also, crank recovers to clockwise rotate normally, large and small sizing dish and reducing chain drum rotate synchronously, and so far, speed governing finishes.
Be when needing reduction ratio when handle affects cable wire, crank need clockwise rotate certain angle, and then reducing chain drum diameter diminishes, and the remaining part operating principle is same as above.
Each guide pillar (1) is provided with negative thread, quadrant is installed in the guide groove of big or small sizing dish by big cap screw, and each quadrant auxiliary led respective secondary assistant director of a film or play's groove (3) that platform (2) places little sizing dish, tilts when preventing its reducing.
The utlity model has simple in structurely, operation is reliable, and speed change is flexible, the parts mill Decrease little, the labour-saving remarkable advantage of riding.
Claims (5)
1, the bicycle speed-regulating chain drum, by the sizing dish, crank (13), quadrant (6) is formed, it is characterized in that: go up uniform 6 guide grooves (4) radially with the little sizing dish (8) of crank (13) riveted joint, be located at this dish outside and go up uniform 6 sets of curves guide grooves (5) with the concentric also big in relative rotation sizing dish (7) of this dish, form by two equidistant curve guide grooves for every group, the reducing chain drum of little sizing dish opposite side is made of 6 quadrants (6), two guide pillars (1) of the radial array on each quadrant and the curve guide groove sliding block joint of the radially guide groove of corresponding little sizing dish with big sizing dish; The big sizing dish outside is provided with lockout mechanism, be that the middle locating notch of crescent moon prominent (15) communicates with the guide groove (12) that " " shape slide plate (18) is housed, in the guide groove of slide plate (18) upper end lock dog (11) is housed, the plurality of tooth-shaped locked groove (10) on 60 ° of corresponding peripheries of central angle of this lock dog and little sizing dish is connected mutually; Variable-speed controller (33) is fixed on the frame five-through axle sleeve by stay bearing plate (31), " " shape bar (26) in its housing (23) in the sleeve that is provided with bearing spring disk (20) (29) on, lower slider, and by the supporting of the small pressure spring (22) outside the sleeve (29), housing bottom is provided with annular backing ring (19), housing top is provided with back taper thrust circle (25), big stage clip (21) is housed between this circle and the bearing spring disk, cable wire (27) is fastening by the wired assembly (30) of bearing spring disk bottom by the vertical through hole of " " shape bar, cable wire (27) other end is connected to the control handle on the handlebar, the horizontal ends of " " shape bar crouches and is contained in the chute (28) of housing both sides, the crescent moon prominent (15) of the affixed column cap (24) that stretches out housing of an end wherein, column cap (24) the dish B when rotating contacts.
2, speed governing chain drum as claimed in claim 1 is characterized in that: radially guide groove (4) both sides of little sizing dish (8) respectively are provided with an auxiliary guide groove (3), engage with the auxiliary platform (2) of leading of quadrant (6).
3, speed governing chain drum as claimed in claim 1 is characterized in that: the trough rim (9) that interior flexible bolt with flange (14), the cylindrical excessively of big sizing dish (7) are provided with is rotationally connected with little sizing dish (8).
4, speed governing chain drum as claimed in claim 1 is characterized in that: be installed with wire spring (16) on the locating notch of crescent moon prominent (15), and suppress the knuckle place at " " shape slide plate (18).
5, speed governing chain drum as claimed in claim 1 is characterized in that: in the quadrant (6), wherein symmetrically arranged a pair of arc edge is provided with sprocket, and other 4 arc edge is provided with guide chain groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202506 CN2234910Y (en) | 1995-02-20 | 1995-02-20 | Speed-regulating chain disc for bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95202506 CN2234910Y (en) | 1995-02-20 | 1995-02-20 | Speed-regulating chain disc for bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2234910Y true CN2234910Y (en) | 1996-09-11 |
Family
ID=33855647
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95202506 Expired - Fee Related CN2234910Y (en) | 1995-02-20 | 1995-02-20 | Speed-regulating chain disc for bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2234910Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972197A (en) * | 2016-06-20 | 2016-09-28 | 裕克施乐塑料制品（太仓）有限公司 | Automatic gear shifting device for planetary gear train transmission |
| CN113715955A (en) * | 2021-09-13 | 2021-11-30 | 昆山德钜源运动科技有限公司 | Stepless speed changing bicycle chain wheel |
-
1995
- 1995-02-20 CN CN 95202506 patent/CN2234910Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972197A (en) * | 2016-06-20 | 2016-09-28 | 裕克施乐塑料制品（太仓）有限公司 | Automatic gear shifting device for planetary gear train transmission |
| CN113715955A (en) * | 2021-09-13 | 2021-11-30 | 昆山德钜源运动科技有限公司 | Stepless speed changing bicycle chain wheel |
| CN113715955B (en) * | 2021-09-13 | 2023-01-10 | 昆山德钜源运动科技有限公司 | Stepless speed changing bicycle chain wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |