GB815772A - Improvements in or relating to crank mechanisms for cycles - Google Patents
Improvements in or relating to crank mechanisms for cyclesInfo
- Publication number
- GB815772A GB815772A GB2203/58A GB220358A GB815772A GB 815772 A GB815772 A GB 815772A GB 2203/58 A GB2203/58 A GB 2203/58A GB 220358 A GB220358 A GB 220358A GB 815772 A GB815772 A GB 815772A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spindle
- pedal
- crank
- cycles
- pivot axis
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/02—Construction of cranks operated by hand or foot of adjustable length
- B62M3/04—Construction of cranks operated by hand or foot of adjustable length automatically adjusting
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
815,772. Pedal-crank driving-mechanism. STETTLER, O. Jan. 22, 1958 [Jan. 26, 1957], No. 2203/58. Class 136(2) In a pedal crank mechanism for cycles with two pedal cranks 126, 131 movable with respect to one another about a common pivot axis 62, each of which is connected by means of a link 66 or 69 to a chain wheel 55 which is rotatably mounted on axis 63 on the bottom bracket parallel to the axis 62, the pivot axis 63 is displaced downwardly with respect to the pivot axis 62 so that with a constant rotational velocity of the chain wheel the angular velocity of the cranks is greater in the upper half of their movement than in the lower half. The crank 126 is secured to a spindle 22 having an axial drilling into which an axle 28 is rotatably inserted. Two pins 30 are inserted in the spindle 22 and engage a peripheral groove 29 in the spindle 28. The pedal crank 131 is secured to the spindle 28.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT815772X | 1957-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB815772A true GB815772A (en) | 1959-07-01 |
Family
ID=3681472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2203/58A Expired GB815772A (en) | 1957-01-26 | 1958-01-22 | Improvements in or relating to crank mechanisms for cycles |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB815772A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122958A (en) * | 1982-06-02 | 1984-01-25 | Gordon Keith Reader | Bicycle drive arrangement |
GB2243351A (en) * | 1990-04-26 | 1991-10-30 | Malcolm Geoffrey Lawrence | A pedal and crank drive arrangement |
GB2277065A (en) * | 1993-04-16 | 1994-10-19 | Dragan Martalog Bukatarevic | A variable ratio transmission for a cycle |
EP0630804A1 (en) * | 1993-06-22 | 1994-12-28 | Shieldcross Holdings Limited | Crank device for the transmission of energy with elimination of dead centres, particularly suited for bicycles and the like |
US5755635A (en) * | 1993-01-28 | 1998-05-26 | Draco Limited | Crank device for the transmission of energy with elimination of dead centers, particularly suited for bicycles and the like |
WO2000009388A1 (en) * | 1998-08-13 | 2000-02-24 | Shen Jiang | A high-speed bicycle |
CN104176191A (en) * | 2014-09-09 | 2014-12-03 | 夏正付 | Center shaft suitable for bicycle |
CN104401444A (en) * | 2014-11-25 | 2015-03-11 | 广西大学 | Center shaft applicable to bicycle |
-
1958
- 1958-01-22 GB GB2203/58A patent/GB815772A/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2122958A (en) * | 1982-06-02 | 1984-01-25 | Gordon Keith Reader | Bicycle drive arrangement |
GB2243351A (en) * | 1990-04-26 | 1991-10-30 | Malcolm Geoffrey Lawrence | A pedal and crank drive arrangement |
US5755635A (en) * | 1993-01-28 | 1998-05-26 | Draco Limited | Crank device for the transmission of energy with elimination of dead centers, particularly suited for bicycles and the like |
GB2277065A (en) * | 1993-04-16 | 1994-10-19 | Dragan Martalog Bukatarevic | A variable ratio transmission for a cycle |
EP0630804A1 (en) * | 1993-06-22 | 1994-12-28 | Shieldcross Holdings Limited | Crank device for the transmission of energy with elimination of dead centres, particularly suited for bicycles and the like |
WO2000009388A1 (en) * | 1998-08-13 | 2000-02-24 | Shen Jiang | A high-speed bicycle |
CN104176191A (en) * | 2014-09-09 | 2014-12-03 | 夏正付 | Center shaft suitable for bicycle |
CN104401444A (en) * | 2014-11-25 | 2015-03-11 | 广西大学 | Center shaft applicable to bicycle |
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