CN2257791Y - Chainless stageless speed variator bicycle - Google Patents
Chainless stageless speed variator bicycle Download PDFInfo
- Publication number
- CN2257791Y CN2257791Y CN 96203639 CN96203639U CN2257791Y CN 2257791 Y CN2257791 Y CN 2257791Y CN 96203639 CN96203639 CN 96203639 CN 96203639 U CN96203639 U CN 96203639U CN 2257791 Y CN2257791 Y CN 2257791Y
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- CN
- China
- Prior art keywords
- gear
- lever
- travel
- ing rest
- chute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a chainless bicycle of which the speed can be changed optionally. The utility model comprises bicycle wheels, handlebars, a triangular frame, pedal cranks, etc. A back gear 1, a big gear 4 and a forward and backward gear 3 are arranged on the left end of a cross beam 19; the right end of the cross beam 19 is provided with a middle shaft 14 which is engaged with a crank shaft gear 13. The upper end of an eccentric link 11 and the right end of a lever 6 are coaxially arranged in a sliding slot of a positioning slot plate 12, and the left end of the lever 6 is connected with a rack 5 which is engaged with the forward and backward gear 3. A drag spring 7, a movable bracket 20 and a steel wire drag rope 16 are arranged above the cross beam 19. The bicycle has simple structure, convenient and flexible speed regulation and high durability; in addition, the utility model can be made into various types.
Description
The utility model relates to a kind of no chain gear, the bicycle of the change speed of can following one's bent.
At present, in the vast town and country of China, bicycle remains main short distance walking-replacing tool.Now the bicycle of selling on the market runs into upward slope, meets strong wind, will feel very painstaking and inconvenient during situation such as loads, for this reason, some variable speed bicycles have appearred on the market, because these transmission system inconveniences, fragile, and great majority all are traditional chain gears, thereby are difficult to popularize.
It is a kind of without chain gear that the purpose of this utility model is to provide, and can indiscriminately ad. as one wishes realize infinite variable speed bicycle.
Task of the present utility model realizes in the following manner: this no chain bicycle with stepless speed change comprises front-wheel, trailing wheel, tap handle, back vent, spider, step on and turn, axis and crossbeam, middle shaft gear is housed on the axis, spider is provided with positioning groove plate, the positioning groove plate lower end is provided with the shaft gear that turns with the axis gear mesh, the upper end of eccentric link and the right-hand member of lever be coaxial to be contained in the chute of positioning groove plate, the lower end of eccentric link is fixed on turns on the shaft gear axle, the crossbeam left end is provided with backgear, big gear wheel and positive and negative gear, big gear wheel is coaxial with positive and negative gear, between big gear wheel and positioning groove plate, be positioned at and be provided with travel(l)ing rest on the crossbeam, travel(l)ing rest top is provided with one and goes up sliding roller, the travel(l)ing rest bottom is provided with two downslide rollers, the left end of lever is connected with tooth bar, tooth bar and positive and negative gear engagement, be processed with the lever chute on the lever, last sliding roller is installed in the lever chute, the downslide roller is installed in the vehicle frame chute of crossbeam top, between lever and vehicle frame chute, be provided with extension spring, the extension spring left end is fixed on the fixed leg, the extension spring right-hand member is fixed on the travel(l)ing rest, wire digging line one end is connected with travel(l)ing rest, and an end is connected with the speed governing handle on handle-bar the right.
In the utility model, middle shaft gear is 2: 1 with the transmitting ratio that turns shaft gear, big gear wheel and back-geared transmitting ratio 2: 1.
The utility model is without chain, indiscriminately ad. as one wishes realize stepless change by lever, gear and connecting rod mechanism, promptly resemble the motor bike rotary handle and regulate any speed of a motor vehicle of regulating flexibly and comfortably the throttle size between 1: 1 to 4: 1, it is simple in structure, durable in use, be adapted at using on the bicycle of any model.
Concrete structure of the present utility model is provided by drawings and Examples.
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the birds-eye view of Fig. 1.
Below in conjunction with drawings and Examples the utility model is described in more detail.
Embodiment:
With reference to Fig. 1, Fig. 2, this no chain bicycle with stepless speed change comprises front-wheel, trailing wheel, tap handle, back vent 2, spider 15, step on and turn 17, axis 18 and crossbeam 19, shaft gear 14 in being equipped with on the axis 18, spider 15 is provided with positioning groove plate 12, positioning groove plate 12 lower ends are provided with middle shaft gear 14 ingears and turn shaft gear 13, the right-hand member of the upper end of eccentric link 11 and lever 6 is coaxial to be contained in the chute of positioning groove plate 12, the lower end of eccentric link 11 is fixed on the axle that turns shaft gear 13, crossbeam 19 left ends are provided with backgear 1, big gear wheel 4 and positive and negative gear 3, big gear wheel 4 is coaxial with positive and negative gear 3, above being positioned at crossbeam 19 between big gear wheel 4 and the positioning groove plate 12, be provided with travel(l)ing rest 20, travel(l)ing rest 20 tops are provided with one and go up sliding roller 10, travel(l)ing rest 20 bottoms are provided with two downslide rollers 21, the left end of lever 6 is connected with tooth bar 5, tooth bar 5 and positive and negative gear 3 engagements, be processed with lever chute 8 on the lever 6, last sliding roller 10 is installed in the lever chute 8, downslide roller 21 is installed in the vehicle frame chute 9 of crossbeam 19 tops, between lever 6 and vehicle frame chute 9, be provided with extension spring 7, extension spring 7 left ends are fixed on the fixed leg 22, extension spring 7 right-hand members are fixed on the travel(l)ing rest 20, wire digging line 16 1 ends are connected with travel(l)ing rest 20, and an end is connected with the speed governing handle on handle-bar the right.Middle shaft gear 14 is 2: 1 with the transmitting ratio that turns shaft gear 13, and big gear wheel 4 is 2: 1 with the transmitting ratio of backgear 1.
Principle of work of the present utility model is as follows: when step on turn 17 be positioned at the extreme higher position and drive big gear wheel 4 and rotate 45 ° forward after, eccentric link 11 is in the extreme higher position, eccentric link 11 is arranged in the chute of lever 6 right-hand members on positioning groove plate 12 to lower slider, because the effect of travel(l)ing rest 20, make the right-hand member reversing sense of the lever 6 pulling tooth bar 5 that moves up, tooth bar 5 drives positive and negative gear 3 and rotates, positive and negative gear 3 is coaxial with big gear wheel 4, so big gear wheel 4 drives backgear 1 and rotates, backgear drives rear wheel and rotates forward.When step on turn half-twist after, eccentric link 11 is in extreme lower position, continue behind the Rotate 180 ° to start working again just to the extreme higher position.
The utility model stepless change nimbly and freely is the realization that moves forward and backward by travel(l)ing rest 20, and two downslide rollers 21 move forward and backward in vehicle frame chute 9, and upward sliding roller 10 moves forward and backward in lever chute 8, by rotating the speed governing handle on handle-bar the right.Tighten up wire digging line 16, travel(l)ing rest 20 is movable forward, the length that lever 6 left ends drive tooth bar 5 up and down increases, make big gear wheel 4 and backgear 1 change manyly, travel(l)ing rest 20 moves under the effect of extension spring 7 backward, and the length that lever 6 left ends drive tooth bar 5 up and down reduces, and makes big gear wheel 4 and backgear 1 change fewly, change to such an extent that slow train speed slows down, laborsaving.
Claims (2)
1, a kind of no chain bicycle with stepless speed change, comprise front-wheel, trailing wheel, tap handle, back vent (2), spider (15), step on and turn (17), axis (18) and crossbeam (19), it is characterized in that: middle shaft gear (14) is housed on the axis (18), spider (15) is provided with positioning groove plate (12), positioning groove plate (12) lower end is provided with middle shaft gear (14) ingear and turns shaft gear (13), the right-hand member of the upper end of eccentric link (11) and lever (6) is coaxial to be contained in the chute of positioning groove plate (12), the lower end of eccentric link (11) is fixed on the axle that turns shaft gear (13), crossbeam (19) left end is provided with backgear (1), big gear wheel (4) and positive and negative gear (3), big gear wheel (4) is provided with travel(l)ing rest (20) with coaxial crossbeam (19) top that is positioned at of positive and negative gear (3) between big gear wheel (4) and positioning groove plate (12), travel(l)ing rest (20) top is provided with one and goes up sliding roller (10), travel(l)ing rest (20) bottom is provided with two downslide rollers (21), the left end of lever (6) is connected with tooth bar (5), tooth bar (5) and positive and negative gear (3) engagement, be processed with lever chute (8) on the lever (6), last sliding roller (10) is installed in the lever chute (8), downslide roller (21) is installed in the vehicle frame chute (9) of crossbeam (19) top, between lever (6) and vehicle frame chute (9), be provided with extension spring (7), extension spring (7) left end is fixed on the fixed leg (22), extension spring (7) right-hand member is fixed on the travel(l)ing rest (20), wire digging line (16) one ends are connected with travel(l)ing rest (20), and an end is connected with the speed governing handle on handle-bar the right.
2, no chain bicycle with stepless speed change according to claim 1 is characterized in that: middle shaft gear (14) is 2: 1 with the transmitting ratio that turns shaft gear (13), and big gear wheel (4) is 2: 1 with the transmitting ratio of backgear (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203639 CN2257791Y (en) | 1996-02-01 | 1996-02-01 | Chainless stageless speed variator bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96203639 CN2257791Y (en) | 1996-02-01 | 1996-02-01 | Chainless stageless speed variator bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2257791Y true CN2257791Y (en) | 1997-07-16 |
Family
ID=33889171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96203639 Expired - Fee Related CN2257791Y (en) | 1996-02-01 | 1996-02-01 | Chainless stageless speed variator bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2257791Y (en) |
-
1996
- 1996-02-01 CN CN 96203639 patent/CN2257791Y/en not_active Expired - Fee Related
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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 |