Abstract: A synchronizer apparatus for a transmission includes first and second shifting gears rotatable on output shaft, a hub spline-coupled with output shaft and having a slope portion having slanted surfaces, a sleeve spline-coupled with hub, a key coupled with the slope portion, first and second clutch gears disposed between hub and shifting gears, first and second outer rings and first and second inner rings disposed between hub and clutch gears, first and second synchronizer cones disposed between first inner and outer rings and second inner and outer rings and engaged with clutch gears, a poppet ball unit disposed at sleeve and contacting key through a poppet ball, first and second push blocks disposed at slanted surfaces, and first and second push springs inserted in spring holes formed at push blocks. In addition, the push springs is abutted by key such to force push blocks to tightly contact slanted surfaces.

Abstract: A synchronizer apparatus for a transmission includes: first and second shifting gears rotatable on an output shaft; a hub spline-coupled with the output shaft and having a slope portion having slanted surfaces; a sleeve spline-coupled with the hub; a key coupled with a recess of a slope portion; first and second clutch gears disposed between the hub and shifting gears; first and second outer rings and first and second inner rings disposed between the hub and clutch gears; first and second synchronizer cones disposed between the first inner and outer rings and the second inner and outer rings; a poppet ball unit disposed at the sleeve and contacting the key through a poppet ball; first and second push blocks disposed at the slanted surfaces; and first and second push springs inserted in spring holes formed at the push blocks to force push blocks to the slanted surfaces.

Abstract: Drive shaft bearing structure assemblies and methods for a snowblower can include a transmission and at least one drive shaft coupled to the transmission. The assembly can further include a transmission casing containing the transmission. The transmission casing can include at least one bearing structure. The bearing structure can be configured to receive a portion of the drive shaft during axial rotation of the shaft. In some aspects, there can be two drive shafts. In this aspect, the bearing structure can be configured to receive a first portion of each of the two drive shafts during axial rotation of the drive shafts. In another aspect, the bearing structure is bolted onto the transmission casing as a journal bearing.

Abstract: A modular plain bearing is provided. The modular plain bearing includes a first end portion having a terminal edge with a plurality of first fingers and a second end portion having a terminal edge with a plurality of second fingers. The plurality of fingers cooperatively engage to provide a snap fit connection between the parts. For longer plain bearings, a bearing extender is provided. The bearing extender includes at least a first connector having a plurality of first connector fingers. The bearing extender may include either a second connector opposite the first connector having a plurality of second connector fingers.

Abstract: A water pump has a pulley provided with an internally toothed gear and an externally toothed gear that is further in than the internally toothed gear in a radial direction, a shaft gear involved in transmission of power to and from the pulley, and a transmission mechanism that mediates transmission of power between the pulley and the shaft gear. The transmission mechanism includes gears and that set a transmission gear ratio to a first value when the transmission mechanism engages with the internally toothed gear and set the transmission gear ratio to a second value different from the first value when the transmission mechanism engages with the externally toothed gear, a rocker arm that switches an engagement object of the gears on a pulley side between the internally toothed gear and the externally toothed gear, and a DC motor that drives the rocker arm.

Abstract: A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only two gear meshes, being comprised of an input gear, a cluster gear, and an output gear. The transmission is controlled with a clutch and a sprag and with the input and output shafts turning in the same direction.

Abstract: A two-speed transmission having an input shaft and an output shaft, the transmission being capable of transitioning between fixed ratios, the high-range ratio being direct 1:1 and the low-range ratio being about 2:1. The transmission is a simple lightweight, yet robust, configuration utilizing only two gear meshes, being comprised of an input gear, a cluster gear, and an output gear. The transmission is controlled with a clutch and a sprag and with the input and output shafts turning in the same direction.

Abstract: The invention deals with an eccentric gearbox with selectable, large speed ratio. A gearbox that consists of multiple eccentric gear pairs (12, 13 and 14,15), an eccentric gear pair is engaged between input (22) and output shafts (24) as to get corresponding speed ratio between the two shafts. In present invention, mechanisms are developed to disengage gears belonging to an eccentric gear pair that is not engaged between input (22) and output shafts (24) as to reduce wear and tear of the gears. In one approach variable eccentricity assemblies (16, 17) can make unengaged fixed gears (12, 14) stationary as to reduce energy consumption and vibrations also. In another approach, movement of revolving gears (13, 15) along output shaft axis (24) can engage or disengage gears of an eccentric gear pair (12,13 and 14, 15) as per the requirement.

Abstract: A transmission mechanism of an image scanner with adjustable resolution is disclosed.

Abstract: A gear set for a transmission for use in limited space and capable of transmitting relatively large amounts of power with a small diameter of the gear sets, comprising a series of helical gear elements having stub shafts extending laterally from either side thereof, each of the stub shafts having teeth formed at the remote ends thereof and a central axial bore extending through each gear element and a coupler adapted to engage the teeth on adjacent gear elements join gear elements in driving contact. The gear set having a relatively large effective diameter, and a tension rail extending through the axial bore in the gear elements with retainers at either end of the tension rail so as to effectively permit limited axial movement along the tension rail while preventing inadvertent disengagement.

Abstract: A rotation output device including a lock mechanism for automatically locking an output shaft without inertia or a need to pivot the output shaft by the operator after the input shaft stops rotating. The rotation output device includes an output gear for inputting a rotation driving force; a lock ring restricted from rotating; output rings for rotating integrally with the spindle; a click spring for rotating the output rings with respect to the output gear; float gears which are held by the output ring to be urged radially outward and are fixedly engageable with the lock ring; and central pin insertion through-holes and side pin insertion through-holes provided in the output rings for releasing the float gears radially outward and fixedly engaging the float gears with the lock ring. The click spring relatively rotates the output rings by the stoppage of the rotation driving of the output gear.

Abstract: A planetary gear assembly comprising a primary array (2) of co-axial planetary gear sets and a secondary array (3) of co-axial planetary gear sets, planetary gear set being provided with an associated gear engagement means (21), the arrangement being such that in use each planetary gear set and the associated gear engagement means are arranged for relative translational movement which is substantially parallel to the axis of the respective array of planetary gears and a rotational input drives a selected primary gear set which is engaged with the associated gear engagement means, the rotational output of the engaged primary gear set (2) being transmitted through the associated gear engagement means (21) to gear engagement means which is engaged with the associated selected secondary gear set (3), the output from the selected secondary gear set being transmitted to rotational output means (18, 49).

Abstract: A remote control toy car control system is constructed to include a dual-gearshift transmission mechanism coupled to the engine of the remote control toy car for transmission output power of the engine between a high torque position and a low torque position, a forward backward transmission control mechanism coupled to the output end of the dual-gearshift transmission mechanism for controlling forward/backward movement of the toy car, and a differential assembly coupled to the forward backward transmission control mechanism for enabling the rear wheels of the toy car to turn at different speeds when going round corners.

Abstract: A remote control toy car control system is constructed to include a dual-gearshift transmission mechanism coupled to the engine of the remote control toy car for transmission output power of the engine between a high torque position and a low torque position, a forward backward transmission control mechanism coupled to the output end of the dual-gearshift transmission mechanism for controlling forward/backward movement of the toy car, and a differential assembly coupled to the forward backward transmission control mechanism for enabling the rear wheels of the toy car to turn at different speeds when going round corners.

Abstract: A forward/backward steering control mechanism installed in a toy car and coupled to a power drive and controlled by a remote controller to move the toy car forwards/backwards. The forward/backward steering control mechanism uses a remote controller-controlled server to move a movable gear on the transmission shaft of the toy car between a first transmission gear wheel, which is coupled to the power drive of the toy car, and a second transmission gear wheel, which is coupled to the first transmission gear wheel through two meshed idle gears, so as to control the direction of rotation of the transmission shaft, and to further control forward/backward movement of the toy car.

Abstract: A multiple-speed gearbox for a planer. The planer includes a cutterhead mounted on an input shaft, which is driven by an electric motor, and infeed and outfeed rollers, which are driven by an output shaft. The gearbox includes a first input gear rotatable by the input shaft and a first and second output gears mounted on and independently rotatable about the output shaft. The gearbox further includes a three-gear set having a middle gear, a first outer gear and a second outer gear rotatable with a common speed. The middle gear engages the first input gear, the first outer gear engages the first output gear, and the second outer gear engages the second output gear. An actuator is operably attached to the multiple-speed gearbox to selectively engage the output shaft with one of the first and second output gears when the actuator is moved in a first or second axial direction respectively.

Abstract: A gearbox for a motorcycle includes a casing containing a gear train therein. The gear train includes an input gear shaft rotatably mounted in the casing and operably connected to and thus driven by an engine of the motorcycle, and an output gear shaft rotatably mounted in the compartment and operably connected to one of at least two wheels of the motorcycle. A first gear and a second gear are rotatably mounted around the output gear shaft. A follower block is mounted around the output gear shaft and located between the first gear and the second gear. The follower block is slidable along a longitudinal axis of the output gear shaft for releasably engaging with one of the first gear and the second gear.

Abstract: A forward/backward steering control mechanism installed in a toy car and coupled to a power drive and controlled by a remote controller to move the toy car forwards/backwards. The forward/backward steering control mechanism uses a remote controller-controlled server to move a movable gear on the transmission shaft of the toy car relative to a transmission wheel, which is coupled to the power drive of the toy car, between a first position and a second position, so as to control the direction of rotation of the transmission shaft, and to further control forward/backward movement of the toy car.

Abstract: A change gear transmission device for a scanner comprises a motor, a first gear, a second gear and a third gear. The second gear and the third gear are movably arranged within the scanner and can be moved in axial direction. The first gear is coaxially connected with the motor. The second gear and the third gear are arranged on one end of the driving shaft of the scanner and have different tooth number. The first gear is optionally engaged with the second gear or the third gear by the movement of the second gear and the third gear. In a preferred embodiment of the device, the second gear is a spur gear and the third gear is an indent gear (ring gear). Therefore, the inventive change gear transmission device can provide both high speed and high accuracy ability to the scanner with low/high resolution.

Abstract: A nonsynchronized positive clutch system (200) is provided for selectively rotationally coupling and decoupling a first (46) and a second (42) independently rotatable members. The clutch system includes clutch members (50, 42A) each carrying a number (N) of interengagable clutch teeth (208, 210) which is maximized in view of pitch diameter (214), clutch backlash (216) and durability considerations. By increasing the number of clutch teeth, relative to the prior art (200P), smoother shifting and/or reduced risk of missed engagements is obtained.

Abstract: A gear retainer (200) is provided that features a thrust washer (54) that is secured in a transverse groove (40) in a transmission mainshaft (3) for rotation therewith and extends outwardly therefrom into a groove defined between a radially outwardly extending second surface (50) and a retainer ring (58) disposed in a slot (47) in an axially extending first surface (46) defining a recess (42) in a floating mainshaft gear (20encircling mainshaft (3). Gear retainer (200) is operative to limit axial movement of gear (20) and to transmit axial thrust to mainshaft (3) that may have been imparted thereto by a clutching mechanism (24) during the process of clutching gear (20) to mainshaft (3). In another embodiment a gear retainer (300) is provided that includes a spacer (62) between ring (58) and thrust washer (54) that is secured for rotation with gear (20) and is operative to increase contact surface area between ring (58 ) and thrust washer (54).

Abstract: A positive clutch system (100) is provided for selectively rotationally coupling and decoupling a first (22) and second (38) rotatable member. The total system rotational backlash is distributed to minimize the backlash component (222) dependent upon directions of relative rotation and to maximize the backlash component (220) independent of relative rotation.

Abstract: A marine propulsion device comprising a ball clutch transmission including a propeller shaft including an axial bore defining an annular wall having therethrough a radially extending aperture communicating with the bore, a ball located in the aperture, an actuator extending in the axial bore in the propeller shaft and being movable between axially spaced drive and neutral positions, the actuator including an axially extending groove, the groove including a deep portion having a cross sectional contour of such dimension as to permit receipt therein of at least a portion of the ball so as to disengage the ball from a driven bevel gear, the groove also including a shallow portion located adjacent the deep portion and having a cross sectional contour such that engagement of the shallow portion with the ball forces the ball radially outwardly so that the ball is engaged by the gear, the shallow portion also including a section which slopes radially inwardly and toward the deep portion, whereby the force exerted on

Abstract: A power change-over mechanism of a vehicle for industrial machinery including a spool divided into two members: an outer peripheral side member having splines freely meshed with splines of high-speed and low-speed gears and an inner peripheral side member having a spline freely meshed with splines of first and second driving shafts, an inner peripheral sub-spline constantly meshing with the first driving shaft being further formed on the outer peripheral side member, the outer peripheral side member being clearance fitted onto an outer periphery of the inner peripheral side member, and the inner and outer peripheral side members being connected relatively movable with respect to each other in the axial direction through a damper means.

Abstract: A power change-over mechanism of a vehicle for industrial machinery including a spool divided into two members: an outer peripheral side member having splines freely meshed with splines of high-speed and low-speed gears and an inner peripheral side member having a spline freely meshed with splines of first and second driving shafts, an inner peripheral sub-spline constantly meshing with the first driving shaft being further formed on the outer peripheral side member, the outer peripheral side member being clearance fitted onto an outer periphery of the inner peripheral side member, and the inner and outer peripheral side members being connected relatively movable with respect to each other in the axial direction through a damper means.

Abstract: A sliding gear for a speed-changing transmission, idling on an output shaft, has a set of external running teeth in permanent mesh with a driving gear and a set of internal clutch teeth engageable with mating teeth on a coupling member carried by that shaft. The two sets of teeth have centerlines inclined to the axial direction by angles so related as to exert balanced axial forces upon the sliding gear in the engaged position of the latter. The clutch teeth have flanks diverging from their centerlines at small angles, in the direction of the engagement shift, to hold the sliding gear in contact with the coupling member.

Abstract: A drive mechanism for fishing reels is disclosed which includes a spool supported on bearings and a shaft, carried in spaced side plates of a reel frame. The reel includes a cam operated brake mechanism which includes a plurality of stops, with an axially slidable spool shaft. One of the bearings carries a shaft supporting a bearing and drive mechanism which includes a handle, positioning pin and gears slidably mounted on shafts, which upon selective manipulation will engage one of two sets of gears, thereby determining the drive ratio available to the handle for varying the speed of spool rotation as desired. The gear ratios are selected to provide that upon backward or counterclockwise handle rotation against the stops, the teeth of the gears of the lower ratio will always be angularly aligned with the internal teeth of the ring gear to provide for gear shifting.

Abstract: A gear assembly having both compactness and a short installation length includes a mainshaft sun gear and a ring gear rotatable on a first axis, and an internal sub-assembly having intermediate ring and sun gears mounted in an eccentric bearing block for rotation on a second axis offset from the first axis. The assembly may be mounted entirely within a drive sprocket.