Abstract: A belt-type continuously variable transmission capable of continuously changing a speed reduction ratio of a driven pulley to a drive pulley, has a speed reduction ratio regulation mechanism that regulates a minimum speed reduction ratio of the driven pulley to the drive pulley. The driven pulley includes a fixed sheave, a movable sheave displaceable in an axial direction with respect to the fixed sheave, and a coil spring that urges the movable sheave toward the fixed sheave. The speed reduction ratio regulation mechanism has a swing arm that adjusts an allowable range in which moving away in an axial direction of the movable sheave with respect to the fixed sheave is possible, and a regulation drive section that drives the swing distal end portion of the swing arm to swing continuously.

Abstract: A plow pivot assembly includes a base adapted to be coupled to a frame member and rotationally fixed relative thereto. A pivot assembly is coupled to the base and includes a motor mounted to a first ring gear, a planetary gear assembly driven by the motor and including a planetary carrier assembly having a plurality of split planetary gears engaging with both the first ring gear and a second ring gear which is fixed to the base for causing rotation of the first ring. A plow blade is attached to the first ring gear by a pivot base that incorporates a force absorbing system therein to protect the planetary gear assembly from damage.

Abstract: A V-shaped belt transmission system includes a small pulley (2) and a large pulley (1). A V-shaped belt (3) winds around the large pulley (1) and the small pulley (2). The V-shaped belt (3) is in friction transmission with the large pulley (1). The transmission between the V-shaped belt (3) and the small pulley (2) is a transmission including the friction transmission with the mesh transmission. The invention provides a V-shaped belt transmission system which can effectively avoid the occurrence of slippage, improve the transmission efficiency, reduce the distortion of the belts, and prolong the service life of the belts, thus addressing the problem of the slippage and idle rotation of the existing belt transmissions.

Abstract: A motor to accessory drive system wherein an electric or gasoline motor, having a housing with a drive shaft end protruding from the motor housing, is mounted with respect to the accessory to be driven, such as a pump or a generator, which also has a housing with a drive shaft protruding from the accessory housing, with a mounting plate secured at one end to the motor housing, and secured at another end to the accessory housing whereby the accessory is supported from the motor. The mounting plate is provided with spaced apertures with the drive shaft ends of the motor and accessory respectively protruding through the apertures in parallel alignment. A drive pulley is mounted on each of the protruding drive shaft ends in alignment in a common plane and an endless belt is in driving engagement with the pulleys.

Abstract: The invention relates to a synchronous flat belt drive, wherein at least one series arrangement of projections (210) has a purely rolling engagement with a series arrangement of apertures on a flat belt (100). The flat belt (100) supports on a pulley (300) only radially, and on a rotation member (200) only tangentially. The generatrix of the series arrangement of apertures is the rolling of a pulley working surface cylinder with projecting projections (210) of a rotation member (200) formed as a face gear. The flat belt (100) is formed of at least a single strip in a layer arrangement of at least one layer, wherein the ends of the individual strips are variously arranged in a layer. An individual strip forms also several layers and is also as an endless strip part of a layer arrangement.

Abstract: A linear unit having a main module unit and a drive unit in which the main module unit has a housing with a table part that a drive belt is able to move in the longitudinal direction; the drive belt is wound around a drive roller, which is connected to a drive unit, and around a freewheeling roller; and the drive belt is connected to the table part and is divided into an upper span and a lower span, and a guide element is situated on the base leg of the housing and is able to separate the upper span from the lower span.

Abstract: A torque transfer device for efficiently increasing the torque transferred from a drive unit to another device (e.g. transmission, sprocket, etc.). The torque transfer device generally includes a drive unit, a first rotating member rotatably attached to the drive unit, wherein the drive unit rotates the first rotating member, a receiving unit, a first rotating member rotatably attached to the receiving unit and a connecting arm attached to a first attachment point of the first rotating member and a second attachment point of the second rotating member. The first attachment point is offset from a first rotational axis of the first rotating member and the second attachment point is offset from a second rotational axis of the second rotating member.

Abstract: A rotary component with a rotor having a plurality of teeth arranged around the perimeter of the rotor. Each tooth has a crown and each pair of adjacent teeth has a valley therebetween. The crowns of the teeth lie on a curved envelope forming the perimeter of the rotor. The perimeter of the rotor has a non-circular profile with at least two protruding portions alternating with receding portions, in which the distance between the midpoints of the crowns of each pair of adjacent teeth is substantially the same, the profile of the valley between each pair of adjacent teeth is substantially the same, and the distance between the midpoint of each crown and the axis of the rotor varies around the perimeter to produce the said non-circular profile.

Abstract: A bicycle shift control apparatus comprises a threshold value setting unit that sets a threshold value of a running condition for shifting a bicycle transmission, a decision unit that decides if a current running condition value passes the threshold value, and a tentative shift unit that sets a tentative shift of the bicycle transmission when the decision unit decides that the current running condition value passes the threshold value. A canceling unit cancels the tentative shift if the decision unit decides that the current running condition value varies from a previous running condition value by a determined value.

Abstract: Means are provided for effectively restricting or preventing occurrence of abnormal noise under cold ambient. The means are durable, cost effective and also keep the function of a pulley. A ball bearing 2 of a single row type includes an outer ring 2a and balls 2c. The outer ring 2a and each ball 2c are contacted with each other at two points. An oil groove 5 is formed at a position adjacent to the contact positions P and Q on the raceway surface between the raceway surface 3a of the outer ring and the balls 2c. The ball bearing 2 is fitted within or made integral with the inner diameter of a pulley body 1 having a peripheral surface 1e to be contacted with a belt.

Abstract: A continuously variable all speed transmission apparatus employs a conically-shaped driven surface which is frictionally contacted by a taut endless compliant transmission member that extends to a circular power source such as the pedal hub of a bicycle. The driven surface is centered upon an axis upon which an axle is disposed that causes rotation of a wheel such as a bicycle wheel. A shifting mechanism moves the contact site of the transmission member axially along the driven surface, thereby producing variation in the rotational speed of the wheel. The transmission member includes a central wire and a series of rollers disposed upon the wire in a manner to rotate about the wire without moving longitudinally thereupon.

Abstract: An electrophotographic imaging apparatus including at least a first rotatable belt support roller and a second rotatable belt support roller, each of the first and second rotatable belt support rollers having an imaginary axis parallel to and spaced from the other, a flexible electrophotographic imaging belt in contact with and supported by the first and second rotatable belt rollers, a belt driving device and at least one flexible non-stretchable drive belt extending from the belt driving device directly to each of the belt support rollers whereby activation of the belt driving device applies a pushing force directly to the drive belt in the region between the drive belt driving device and the first rotatable belt roller and simultaneously applies pulling force directly to the drive belt in the region between the driving device and the second rotatable belt support roller.

Abstract: A drive apparatus and method for continuously transmitting power to an axle, shaft and the like are disclosed. The drive apparatus includes a flexible ratch (414) such as flexible chain, belt or cable and cooperating first and second ratch engaging energy transmitting members (434) for releasably engaging the flexible ratch (414) to continuously drive an axle (410), shaft or the like. To operate the apparatus, the first and second enerergy transmitting ratch engaging members (434) are moved in a direction parallel to the linear paths of the flexible ratch means (414) which causes the first ratch engaging member (434) to engage and drive the flexible ratch (414) which rotatingly drives the axle (410). The ratch engaging members (434) direction of movement is then reversed so that the first ratch engaging means (434) releases the flexible ratch means (414) as the second ratch engaging means (434) engages the flexible ratch means (414) to continuously drive the axle, shaft or the like (410).

Abstract: A transmission with a fixed transmission ratio comprises a pliable endless member which is provided with a profile of mainly transversely oriented teeth, and at least two pulleys which are each provided, on their circumferential surface, with recesses which mate with the teeth. The pliable member is a flexible belt which is stiff in its longitudinal direction and which may be made of metal, for example.

Abstract: A belt drive variable gear transmission system is provided. The system includes a drive disk which has a peripheral running surface for engagement with a drive belt. The peripheral running surface of the drive disk may include a toothed profile. A drive belt is included having a V-shaped profile with angled flanks in a relatively flat inner peripheral surface for engagement with the peripheral running surface of the drive disk. A tension roller is provided in running contact with the drive belt and is movable so as to vary tension on the drive belt thereby varying the transmission ratio of the system. The system further includes a spring washer disengagement disk. The disengagement disk includes two halves which are movably spaced from each other by means of a spring device. The disk halves include angled surfaces in running contact with the angled flanks of the drive belt.

Abstract: A drive apparatus and method for continuously transmitting power to an axle to rotatingly drive the axle are disclosed. The drive apparatus includes a flexible ratch such as a flexible chain, belt, or cable, and cooperating first and second ratch engaging members for alternatively engaging the flexible ratch to continuously drive an axle. To operate the apparatus, one moves the first and second ratch engaging members in a first direction which causes the first ratch engaging member to engage and drive the flexible ratch which rotatingly drives the axle. One then reverses the ratch engaging members' direction of movement which causes the simultaneous releasing and engaging of the ratch by the first and second ratch engaging members, respectively, which continuously drives the axle.

Abstract: The present invention comprises an endless belt which is provided with perforations at the edge on the opposite sides at a regular interval, a pair of belt pulleys around which said endless belt is suspended, a sprocket wheel which is disposed substantially at midway between the pair of pulleys and whose teeth engage with the perforations on the endless belt, a stepping motor which drives the toothed wheel, and a drive circuit which drives said stepping motor. Said sprocket wheel has a diameter larger than that of the pulleys, so that the endless belt would tightly press against the sprocket and held in place.

Abstract: A variable ratio drive mechanism which operates to adjust the path of an endless drive belt in response to a remotely located control input. A plurality of circumferentially spaced sheave segments are respectively mounted in a plurality of radially extending elongated tracks with opposed tooth-like formations therein. Each sheave segment includes cam/bearing means with multiple camming surfaces and opposed engagement blocks intermediate the cam/bearing means and the tooth-like formations. The engagement blocks are mutually slidably engaged but spring-biased into engagement with the tooth-like formations to thereby detent the sheave segment against radial movement. Each sheave segment has a bearing surface which is engaged by the drive belt when the drive mechanism traverses through a predetermined arc of rotation but is disengaged from the drive belt when outside the predetermined arc of rotation.

Abstract: A machine tool with one or more axially movable tool-carrying spindles is provided with a drive system for transferring drive to the spindle(s) from a driving shaft parallel to the spindle(s). The driving shaft, e.g. a motor shaft, carries a plain cylindrical pulley and driven pulley(s) are provided on the driven spindle(s). A poly-vee belt is entrained around the pulleys and the or each driven pulley is formed with an outer surface shaped to enter at least one of the grooves of the poly-vee belt. In use the driven spindle(s) may be moved axially relative to the driving shaft; the belt is retained by the driven pulley(s) and rides axially along the surface of the driving pulley. The drive system allows rapid axial movement without vibration or overshoot and provides high traction. It has particular utility in high speed drilling and routing machines and the like.

Abstract: An endless chain-belt assembly for engagement around a pulley or tooth sprocket includes an intermediate portion comprising a plurality of center links for engaging the sprocket, the links being connected by transfer of pins. An edge portion defining the opposed edges of the chain-belt assembly as a plurality of edge links defining a surface for engagement with surfaces of the pulley. Structures provided for removably attaching the edge links to the intermediate portion. A tensioning assembly for maintaining tension on the chain-belt assembly includes a first and second tensioning pulley, roller or sprocket for pivotal movement in the plane of rotation of the belt and bias and biasing structure for normally biasing the first idler pulley and the second idler pulley in engagement with the belt.

Abstract: A printing belt extends around a rotatable cylinder having independently rotatable belt drive sprockets at the opposite ends thereof. A torque-assist drive connected with the cylinder is selectively operable for imparting supplemental traction to the belt for preventing relative slippage between the belt and drive sprockets.

Abstract: A wheeled vehicle mounts a rotary framework providing a plurality of longitudinally extending, peripheral and inner compartments for the removable storage of a multiplicity of hay bales or like objects. The framework is rotated by a driven endless chain wrapped about the framework centrally of the longitudinal ends thereof. Communication between the peripheral and inner compartments is controlled by movable gates operated selectively by spring-loaded latching mechanism at predetermined intervals of rotation of the framework. A longitudinally extending, reversibly movable feed conveyor below the framework registers with each of the peripheral compartments selectively for moving bales to and from the compartments. The arcuate shields extend from the opposite sides of the feed conveyor upwardly to form with the latter a semicircular shield surrounding the lower half of the framework to confine the bales in the lower peripheral compartments.

Abstract: A variable speed transmission (20) includes a sprocket (46) mounted on a first shaft (22) for rotation therewith. A variable effective diameter pulley (30) is mounted for rotation on a driven shaft (32). The pulley includes a pair of pulley halves (80, 82) having opposed inclined belt engaging surfaces (84, 86) and splines (90, 94) extending from the pulley halves. The splines are intermeshed so that the pulley halves may be drawn together or separated while rotating as a unit. A split shaft (130), including two half shafts (132, 134), extend within the pulley halves. Each half shaft engages one of the pulley halves such that as the half shafts are moved relative to one another, the pulley halves are moved one relative to the other. A pulley control mechanism (66) is provided for moving the halves of the split shaft simultaneously such that the center line of the pulley remains fixed as the pulley halves move together or apart.