Abstract:
A mini bike for strengthening a leg muscle, and for enjoying amusement and a leisure time is provided. The mini bike having a pedal as a power generator includes: a driver having a first bevel gear in order to transmit rotation power generated by a rolling motion of a pedal; a second bevel gear installed to transmit rotation power generated in the driver; a first power transmission gear coaxially installed in the second bevel gear to transmit rotation power to a spline shaft; a clutch positioned at the spline shaft to selectively connect rotation power of the first power transmission gear to a first gearshift and a second gearshift and for controlling a low speed and a high speed; a first driving gear and a second driving gear for rotating by selection of the clutch; and a driving controller including a gearshift in which the clutch is connected to the cable in order to select the first gearshift and the second gearshift. Therefore, when young boys and girls go to or coming from a school, when office workers go to or come from their office, when an adult enjoys a leisure time, as well as when children enjoy amusement, the bike can be used, and when riding on the bike, the user can enjoy a low speed or a high speed, and the bike can be used for strengthening a leg muscle.
Abstract:
A transmission (15) utilizes oscillating torque to vary the mechanical power transmitted to a load (17). An arm assembly (29) is rotatably coupled to a frame (23). At the ends of the arms are eccentric masses (31), rotatably coupled thereto. An input shaft (25) rotates the masses about the ends of the arms. The rotating masses produce an oscillating torque that causes the arms to oscillate. The arms are coupled to an output assembly (33). The output assembly utilizes one way clutches (107, 109), with one clutch reversed relative to the other clutch. The one way clutches convert the bidirectional rotation of the arms to unidirectional rotation for the load. The output speeds of the transmission are controlled by providing at least two side by side rotatable masses (95, 97) and varying the phase of one of the masses relative to the other mass. Varying the phase changes the center of the gravity of the masses, thereby affecting the torque applied to the arms.
Abstract:
A stepless speed change device comprises an input shaft, an output shaft, a driving wheel, a gear or chaingear, an annular housing, an annular wheel, a plurality of levers, and wedge teeth or chains. An annular groove in which converse wedge teeth are held is disposed in the driving wheel. Wedge teeth are connected with the heads of the levers, and the levers are connected with the annular wheel. The axial distance between the driving wheel and the annular wheel is regulated by swing of the annular housing, and by means of locked or released state of the wedge teeth, rotating speed ratio of input and output shaft is thus changed. Such rotating speed ratio change can be realized while vehicles are driving, and it can provide continuous and stepless speed change. The stepless speed change device is especially adapted to bicycles. The axial distance of the driving wheel and the annular wheel is changed by regulating leads, and such regulation has no limitation to the scale of speed change. The speed change range is wide and can be kept synchronous with power input, and it has many advantages such as simple structure, flexible operation, silence, low wear, smooth driving, significant fuel savings while maintaining good speed change effect.
Abstract:
An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam (22), a second cam (24), and a barrel (26). The first cam includes an angled surface (30) and a shoe (36), and the second cam includes an angled surface (52) and a slider (58). The shoe engages with a helical surface (42) in the barrel, and the slider engages with a straight surface (60) in the barrel. The first cam travels a first distance along the longitudinal axis of the barrel from a first to a second state, and the second cam travels a second distance that is greater then the first distance along the longitudinal axis of the barrel from the first to the second state.
Abstract:
Die Erfindung betrifft eine Ausgleichssteuerung, mit der Ungleichförmigkeiten von Satellitengetrieben ganz oder teilweise kompensiert werden könne, indem die Relativbewegung in den Übertragungselementen so geändert wird, dass radiale Bewegungen auch in zusätzlichen Nuten der Satelliten ermöglicht wird. In einer weiteren Führung werden die Übertragungsstifte nicht in einer festen Kontur in der Sternscheibe geführt, sondern die Nuten der Sternscheibe sind beweglich und werden in einer gesteuerten Bahn so geführt, dass sie eine Ausgleichsbewegung ausführen, die den Gleichförmigkeitsgrad des Getriebes erhöht.
Abstract:
An angular velocity profile generator [22,24] comprising an input shaft [46], an output shaft [56], a universal joint coupling the shafts by pivot pins [70,75] situated on two pivot axes which are normal to one another, means [49] in the joint for varying the path of rotation of the pin [70] relatively to that of the pin [75], a first control arrangement [32] for varying the angle between the shafts and a second control arrangement [84], external to the universal joint, connected to the pivot pin path varying means which is activated by the first control arrangement to suit a specific velocity profile produced by the generator. The invention extends to an infinitely variable transmission machine including transmission stages [16] which each include two of the profile generators connected in series and an angular velocity profile portion extraction device.
Abstract:
Device for transmitting rotary motion in a diverter switch comprising a motion-transmitting member for transforming an alternating rotary motion of a drive shaft (1a) into a unidirected rotary motion of a driven body (2) driven about driven shaft (2a). The motion-transmitting member comprises an intermediate body (3) rotatable about an intermediate shaft (3a). A mechanical energy accumulation member (17) is connected to the driven body. The motion-transmitting member for transforming the alternating rotary motion of the drive shaft (1a) into a unidirected rotary motion of the driven shaft (2a) comprises an intermediate motion member connected to a crank mechanism (100). The motion member is provided with engagement means (102) for transforming the linear mo- tion into a unidirected rotary motion of the intermediate shaft (3a) via drive members (103).
Abstract:
A torque transfer mechanism for use as a continuously variable transmission that includes an input shaft (30, 252), a cam member (38, 248), a torque-splitting mechanism (66, 258) cooperating with the cam member, and a torque output assembly (90, 280) for coupling the torque splitting mechanism to an output shaft (120, 282) when there is substantially zero relative velocity between the moving parts to be disconnected to minimize torque feedback to the input shaft.
Abstract:
A shape memory alloy step drive mechanism comprising at least one shape memory alloy element (1) with a fixed end and the other end being connected to one end of a lever (2). The lever (2) is provided with a pawl (4) which is located to move on the teeth of a ratchet wheel (5) mounted on a main shaft (6) along with the lever (2). A stopper pin (7) is provided which also guides the pawl (4) on the ratchet wheel (5). A bias spring (9) is provided on a mandril on the main shaft (6) for returning the lever (2) to its original position. A detent wheel (8) with at least one detent lever (10) is mounted on the main shaft (6) to provide the detent torque required to hold the main shaft (6) in position when the lever (2) returns to its original position. A pair of support brackets (11) are provided for supporting and holding the said components together in an assembly.
Abstract:
A first member (12) defines a plurality of depressions such as V-shaped notches (14) therein and is positioned so that the V-shaped notches are adjacent another plurality of similar notches (32) defined by a second member (30). The spacing of the recesses in the second member is different than the spacing of recesses in the member. A movable ball (16) is received in each of the recesses of the first member. A cam (22) is positioned to alternately force one of the balls into engagement between partially aligned recesses on the first and second members forcing relative movement between the members, positioning a load connected thereto.