GB434776A - Improvements in and relating to coaster hubs - Google Patents
Improvements in and relating to coaster hubsInfo
- Publication number
- GB434776A GB434776A GB12496/35A GB1249635A GB434776A GB 434776 A GB434776 A GB 434776A GB 12496/35 A GB12496/35 A GB 12496/35A GB 1249635 A GB1249635 A GB 1249635A GB 434776 A GB434776 A GB 434776A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coupling
- driver
- locking
- ring
- bar
- 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
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L5/00—Brakes, or actuating mechanisms therefor, controlled by back-pedalling
- B62L5/10—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub
- B62L5/14—Brakes, or actuating mechanisms therefor, controlled by back-pedalling the brakes being actuated through coacting cams and balls or rollers located in the rear wheel hub the brakes being of disc type
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Control Devices (AREA)
Abstract
434,776. Coaster hubs. FICHTEL & SACHS AKT.-GES., Schweinfurt, Germany. April 25, 1935, No. 12496. Convention date, April 25, 1934. Addition to 420,550. [Class 136 (ii)] A coaster hub having means for locking the driver in the brake - applying position by a coupling- device, in order to avoid continuous back - pedalling, as described in the parent Specification, is provided with a roller locking device adapted to move on ascending tracks in one direction of rotation to lock a surrounding ring by means of which the locking-coupling is closed, the springs which act on the coupling being disposed entirely within the driver. In the form shown, the coupling for locking the driver a consists of a ring-shaped part a<3> fixed to the driver, and an axially-slidable part i<1> on a bar i extending through a transverse slot in the axle b. The parts a<3>, i<1> have coupling teeth with inclined flanks, which are normally held out of engagement by a spring k. A bar g acted on by a spring h slides in a transverse slot in a bearing cone b<1>, and is guided by a pin g<1> in the bore of the axle b. An end cap c is provided with several (e.g. three) internal arcuate projections c<1> formed at their ends which are the leading ones in the backward rotation of the driver with inclined surfaces c<2>, Fig. 3, the other ends forming undercut teeth c<3>. Opposite these projections is a ring d formed with corresponding projections d<1> having inclined surfaces d<2> and undercut teeth d<3>. Within the ring d is a cage e, Fig. 2, (with drag springs e<2>) carrying rollers f, which on back-pedalling move outwards on flats b<2> on the cone b<1> until they enter depressions d<4> in the ring d, which is thus locked against rotation, enabling it to be traversed by the inclined surfaces c<2>, d<2>, to displace the bar g and, through the spring h (which is stronger than the spring k), the bar i, thus closing the locking-coupling i<1>, a<3>. Since the teeth of the coupling are inclined, the braking effect may be varied even after the coupling has been closed. In a modification, the coupling and the parts effecting its engagement are all mounted in the bore in the driver, on the inner side of a ball bearing supporting the driver, the sliding bars being replaced by sliding parts around the axle, which is itself formed with the flats for actuating the locking-rollers.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE434776X | 1934-04-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB434776A true GB434776A (en) | 1935-09-09 |
Family
ID=6506677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB12496/35A Expired GB434776A (en) | 1934-04-25 | 1935-04-25 | Improvements in and relating to coaster hubs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB434776A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106864658A (en) * | 2017-04-07 | 2017-06-20 | 苏州盛亿电机有限公司 | Electrical bicycle middle shaft Dao Sha mechanisms with fail safe function of stopping |
-
1935
- 1935-04-25 GB GB12496/35A patent/GB434776A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106864658A (en) * | 2017-04-07 | 2017-06-20 | 苏州盛亿电机有限公司 | Electrical bicycle middle shaft Dao Sha mechanisms with fail safe function of stopping |
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