REVERSE SPEED-CHANGE CONTROL MECHANISM
Disclosed is a reverse rotation variable speed control mechanism, wherein a toggle lever (4) and a control block (3) are provided in a recess of a linkage member (7), a toggle toothed wheel (8) and the toggle lever (4) drive the control block (3) in rotation, a pressure spring (5) presses on the tog...
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Main Author | |
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Format | Patent |
Language | English |
Published |
23.10.2013
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Subjects | |
Online Access | Get full text |
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Abstract | Disclosed is a reverse rotation variable speed control mechanism, wherein a toggle lever (4) and a control block (3) are provided in a recess of a linkage member (7), a toggle toothed wheel (8) and the toggle lever (4) drive the control block (3) in rotation, a pressure spring (5) presses on the toggle lever (4) and the control block (3), one end of the toggle lever (4) is an incomplete toothed wheel, and when an input shaft rotates in the reverse direction, the other end of the toggle lever (4) drives the control block (3) in rotation, and when the input shaft rotates forwards, the toggle lever (4) returns to its starting position and will not drive the control block (3) in rotation. Engage/disengage claws (6) are provided on the periphery of a central wheel (1), the engage/disengage claws (6) being able to connect by meshing with teeth of the central wheel (1). A helical spring (2) is provided on the linkage member (7), and under the action of the helical spring (2), the linkage member (7) rotates around the axis of the central wheel (1). In the mechanism, by means of the toggle toothed wheel (8) and the toggle lever (4) driving the control block (3) in rotation, the control block (3) then rotates a number of engage/disengage claws (6) by means of the linkage member (7), and the engage/disengage claws (6) lock or release the central wheel (1) of a variable speed device to change the speed. It is only necessary to reverse the input shaft once for the gear ratio of the variable speed device to change once, thereby facilitating control of speed change. |
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AbstractList | Disclosed is a reverse rotation variable speed control mechanism, wherein a toggle lever (4) and a control block (3) are provided in a recess of a linkage member (7), a toggle toothed wheel (8) and the toggle lever (4) drive the control block (3) in rotation, a pressure spring (5) presses on the toggle lever (4) and the control block (3), one end of the toggle lever (4) is an incomplete toothed wheel, and when an input shaft rotates in the reverse direction, the other end of the toggle lever (4) drives the control block (3) in rotation, and when the input shaft rotates forwards, the toggle lever (4) returns to its starting position and will not drive the control block (3) in rotation. Engage/disengage claws (6) are provided on the periphery of a central wheel (1), the engage/disengage claws (6) being able to connect by meshing with teeth of the central wheel (1). A helical spring (2) is provided on the linkage member (7), and under the action of the helical spring (2), the linkage member (7) rotates around the axis of the central wheel (1). In the mechanism, by means of the toggle toothed wheel (8) and the toggle lever (4) driving the control block (3) in rotation, the control block (3) then rotates a number of engage/disengage claws (6) by means of the linkage member (7), and the engage/disengage claws (6) lock or release the central wheel (1) of a variable speed device to change the speed. It is only necessary to reverse the input shaft once for the gear ratio of the variable speed device to change once, thereby facilitating control of speed change. |
Author | YE XUEFENG |
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RelatedCompanies | YE XUEFENG |
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Snippet | Disclosed is a reverse rotation variable speed control mechanism, wherein a toggle lever (4) and a control block (3) are provided in a recess of a linkage... |
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SubjectTerms | CYCLES LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS PERFORMING OPERATIONS POWERED PROPULSION OF SLEDGES OR RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES TRANSPORTING |
Title | REVERSE SPEED-CHANGE CONTROL MECHANISM |
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