摘要:
A pawl (60) for controlling the rotation of a gear in a planetary gear mechanism. The pawl includes a nose (71) and first (73) and second (75) pivot axes. The nose (71) is engageable with the gear (40). The pawl (60) is rotatable about the first pivot (73) axis between a first mode permitting rotation of the gear in a first direction (A) and a second direction (B) and a second mode preventing rotation of the gear in the first direction (A). The pawl (60) is rotatable about the second pivot axis (75) to permit rotation of the gear in the second direction (B) while the pawl is the second mode.
摘要:
A provided electric assisted bicycle is configured such that an internal derailleur is provided in a drive unit that internally combines a human driving force and an auxiliary driving force, and the electric assisted bicycle can automatically change gears. The drive unit disposed at an intermediate position between a front wheel and a rear wheel includes a transmission mechanism (25) that transmits a resultant force of a human driving force and an auxiliary driving force from a motor while changing multiple gears. The transmission mechanism (25) includes a transmission weight (81) whose orientation is changed according to a centrifugal force during a rotation of the transmission weight (81). An increase in the rotation speed of a crank shaft (7a) changes the orientations of the transmission weights (81) so as to change from a low gear to a high gear.
摘要:
An energy optimization system has a primary driving means (17) and a driven means (14), the driving and driven means (17 and 14) cooperating through an energy storage means (21). The driving means (17) supplies energy to the storage means (21) through a one-way driving system (18, 23) which blocks energy release back to the primary driving means (17). Relative rotation of the primary driving means (17) is transferred to the energy storage means (21) through a first releasable clutch (18) acting on a one-way rotatable hub (16). A further one-way clutch (37) is actuated by a differential angular rotational speed to disconnect the first releasable clutch (18) and drive the hub (16) at the same time and speed as the energy storage means (21) drives the driven means (14). The first releasable clutch (18) includes release levers (32) pivotally mounted to release the clutch (18) and allow the inner body (27) to rotate in the normally locking direction.
摘要:
A provided electric assisted bicycle is configured such that an internal derailleur is provided in a drive unit that internally combines a human driving force and an auxiliary driving force, and the electric assisted bicycle can automatically change gears. The drive unit disposed at an intermediate position between a front wheel and a rear wheel includes a transmission mechanism (25) that transmits a resultant force of a human driving force and an auxiliary driving force from a motor while changing multiple gears. The transmission mechanism (25) includes a transmission weight (81) whose orientation is changed according to a centrifugal force during a rotation of the transmission weight (81). An increase in the rotation speed of a crank shaft (7a) changes the orientations of the transmission weights (81) so as to change from a low gear to a high gear.
摘要:
Lastschaltbare Freilaufkupplung (1,2) mit eine Welle (10,110), um die Umfang der Welle sind symmetrisch 120 Grad versetzt angeordnete drei Längsnuten (11,111), in die Längsnuten (11,111) sind jeweils ein Stütze (20,120) bzw. ein Verlängerung des Fußes (23,123) von der Schaltmuffe (27,127) axial beweglich montiert. Auf jeder Stütze (20,120) ist ein Keil (35,135) ebenfalls in die Längsnut angeordnet; einen aus mindestens drei Segmenten (34,134) bestehenden Segmentring (30,130), der zu der Welle (10,110) koaxial angeordnet ist, äußere Außenfläche des Segmentrings (30,430) ist mit mehrere Rinnen (32,432) vorgesehen; jeweils einen Keil (35,135), die zwischen den Segmenten (34,134) des Segmentrings (30,130) platziert sind, die den Durchmesser des Segmentrings (30,130) verändern. Einen Gleitring (60,160) mit einem axial durchgehenden Schlitz (65,165), einer äußeren Reibfläche (62,162), die mit der Innenreibfläche (71,171) der zweiten Welle (70,170) in Eingriff gebracht werden kann. Die Lastschaltbare Freilaufkupplung wird extern betätigt bzw. gesteuert. Durch axiale Verschiebung der Schaltmuffe (27,127) wird der Gleitring (60,160) von dem Segmentring (30,130) über den Aktorstift (66,166) entkoppelt, somit ist die Kupplung eingeschaltet und durch die Verschiebung der Schaltmuffe (27,127) in die andere Richtung und durch die Änderung des Segmentringdurchmessers (30,130) wird die Kupplung unter Last ausgeschaltet.