CN2701739Y - Driven traction part gear-shifting boosting arrangement - Google Patents
Driven traction part gear-shifting boosting arrangement Download PDFInfo
- Publication number
- CN2701739Y CN2701739Y CN 200420066158 CN200420066158U CN2701739Y CN 2701739 Y CN2701739 Y CN 2701739Y CN 200420066158 CN200420066158 CN 200420066158 CN 200420066158 U CN200420066158 U CN 200420066158U CN 2701739 Y CN2701739 Y CN 2701739Y
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- center
- swing
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- driven
- drawing piece
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- Expired - Fee Related
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- Steering Devices For Bicycles And Motorcycles (AREA)
Abstract
The utility model relates to a traction mechanism of the bicycle brake. The present mechanism braking from the hand brake operation to the vehicle brake has the defects of great time difference and poor reinforcement effect. The utility model provides a driven traction part gear-shifting boosting arrangement. An active traction piece and a driven traction piece are arranged on the swinging piece. The action center of the driven traction piece is provided on one side of the connecting line connected between the mounting center of the active traction piece and the swing center of the swinging piece. The action center of the driven traction piece is provided on the side which is adjacent to the active traction piece. The distance between the action center of the driven traction piece and the swing center of the swinging piece is longer than the distance between the mounting center of the active traction piece and the swing center of the swinging piece. The time difference between the hand brake operation and the vehicle brake can be shortened through the mechanism when braking. The brake force of the braking is obviously increased.
Description
The utility model relates to transmission tractive action, the particularly driven drawing piece gear shifting operation force-increasing mechanism of bicycle brake device.
The transmission tractive actuating mechanism of existing bicycle brake device, make bicycle brake device when brake, brake component contacts braking force and the speed of Hand brake operation and the linear ratio of power of Hand brake operation that produces to wheel close speed and brake component with wheel, when the at the uniform velocity even power of rim brake was operated, brake component was at the uniform velocity close to wheel, brake component contacts the braking force that produces and do not change with wheel; Under the bicycle cruising state, to keep certain clearance between brake component and the wheel, particularly consider the service precision of wheel, will there be enough numerical value in the gap that keeps between brake component and the wheel, contacts wheel when braking like this and just produce a time difference from the Hand brake operation to the brake component.
Showed a kind of feed mapping device that transmits the tractive action in the disclosed bicycle brake device of Chinese patent CN1179394A, this feed mapping device is provided with eccentric movable pulley, realized brake initial stage brake component to wheel fast feed, brake brake component in latter stage to the wheel process of feeding at a slow speed, the braking force of brake increases, when this invention has only been shortened brake relatively, time difference from the Hand brake operation to the car brakeing, cause Hand brake operation folding distance significantly to increase.
The purpose of this utility model provides a kind of driven drawing piece gear shifting operation force-increasing mechanism, and this mechanism can make driven drawing piece do gear shifting operation first quick and back slow and produce reinforcement effect.
The purpose of this utility model is to realize like this, in comprising the driven drawing piece gear shifting operation force-increasing mechanism of support, two swing components are hinged on the support by a rotating shaft with overlapping orientation, initiatively drawing piece is hinged on the centre of two swing components by No. two rotating shafts, be installed on the connecting bore of two swing components by No. three rotating shafts less than three driven drawing pieces less than three, the center of arc of connecting bore is positioned at the side near the active drawing piece of a rotating shaft and No. two rotating shaft lines of centres on the swing component, and the distance at the center of arc to of connecting bore rotating shaft center is greater than the width between centers of No. two rotating shaft to rotating shafts on the swing component.
For the purpose of this utility model, two driven drawing pieces can be installed in the outside of two swing components respectively by two No. three rotating shafts, the connecting bore on the swing component is a circular hole.
For the purpose of this utility model, also a driven drawing piece can be installed between two swing components by No. three rotating shaft, the connecting bore on the swing component is an arc-shaped hole.
The utility model is because the center of arc of the connecting bore that links to each other with driven drawing piece on the swing component is positioned at the side near the active drawing piece of a rotating shaft and No. two rotating shaft lines of centres, the distance at the center of arc to of connecting bore rotating shaft center is greater than the width between centers of No. two rotating shaft to rotating shafts on the swing component, in the time of making initiatively drawing piece do at the uniform velocity even power tractive action, driven drawing piece along the length direction of himself do first quick and back slow variable-speed motion and the suffered ascending variation of traction force; When the vertical distance at line of action of force to rotating shaft center on the driven drawing piece less than the active drawing piece on during the vertical distance at line of action of force to rotating shaft center, traction force on the driven drawing piece is greater than the traction force on the active drawing piece, and this mechanism realizes the reinforcement transmission.Driven drawing piece gear shifting operation force-increasing mechanism described in the utility model is connected in the general bicycle brake device, can under the condition of the general folding degree of Hand brake operation, reach the effect that the time difference shortens, brake control power increases of contact wheel from the Hand brake operation to the brake component.
Fig. 1 is the structure diagram of first embodiment of the present utility model.
Fig. 2 is the structure diagram of first embodiment of the present utility model.
Below in conjunction with accompanying drawing 1 explanation first embodiment of the present utility model.
The driven drawing piece gear shifting operation force-increasing mechanism that comprises support (1), two swing components (2) are hinged on the support (1) by a rotating shaft (3) with overlapping orientation, initiatively drawing piece (4) is hinged on the centre of two swing components (2) by No. two rotating shafts (5), two driven drawing piece (6) is installed on the connecting bore of two swing components (2) by two No. three rotating shafts (7) in the outside of two swing components (2), the center of arc that swing component (2) is gone up connecting bore be positioned at a rotating shaft (3) and No. two rotating shafts (5) line of centres near a side of drawing piece (4) initiatively, swing component (2) is gone up the distance at center of arc's to a rotating shaft (3) center of connecting bore greater than the width between centers of No. two rotating shafts (5) to a rotating shaft (3).
Disclosed another embodiment of the present utility model of Fig. 2, because structurally the difference in the foregoing description is that 1 driven drawing piece (6) is installed between two swing components (2) by No. three rotating shafts (7), the connecting bore on the swing component (2) is an arc-shaped hole.Its identical structure is all omitted.
Claims (3)
1, the action of transmission tractive, the driven drawing piece gear shifting operation force-increasing mechanism of bicycle brake device particularly, there is support (1) in this mechanism, it is characterized in that: two swing components (2) are hinged on the support (1) by a rotating shaft (3) with overlapping orientation, initiatively drawing piece (4) is hinged on the centre of two swing components (2) by No. two rotating shafts (5), be installed on the connecting bore of two swing components (2) by No. three rotating shafts (7) less than three driven drawing pieces (6) less than three, the center of arc that swing component (2) is gone up connecting bore be positioned at a rotating shaft (3) and No. two rotating shafts (5) line of centres near a side of drawing piece (4) initiatively, swing component (2) is gone up the distance at center of arc's to a rotating shaft (3) center of connecting bore greater than the width between centers of No. two rotating shafts (5) to a rotating shaft (3).
2, driven drawing piece gear shifting operation force-increasing mechanism according to claim 1 is characterized in that: two driven drawing pieces (6) are installed in the outside of two swing components (2) respectively by two No. three rotating shafts (7), and the connecting bore on the swing component (2) is a circular hole.
3, driven drawing piece gear shifting operation force-increasing mechanism according to claim 1, it is characterized in that: a driven drawing piece (6) is installed between two swing components (2) by No. three rotating shafts (7), and the connecting bore on the swing component (2) is an arc-shaped hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066158 CN2701739Y (en) | 2004-06-22 | 2004-06-22 | Driven traction part gear-shifting boosting arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066158 CN2701739Y (en) | 2004-06-22 | 2004-06-22 | Driven traction part gear-shifting boosting arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2701739Y true CN2701739Y (en) | 2005-05-25 |
Family
ID=34777764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066158 Expired - Fee Related CN2701739Y (en) | 2004-06-22 | 2004-06-22 | Driven traction part gear-shifting boosting arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2701739Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144729A (en) * | 2011-07-27 | 2013-06-12 | 天心工业股份有限公司 | Dual-pivot caliper brake |
-
2004
- 2004-06-22 CN CN 200420066158 patent/CN2701739Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103144729A (en) * | 2011-07-27 | 2013-06-12 | 天心工业股份有限公司 | Dual-pivot caliper brake |
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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 |