Endless belt power transmission systems or components inventions 04/06

20060089218 - Large torque diverting device for an engine transmission system: A large torque diverting device for an engine transmission system includes a cylinder between a bowl-shaped disc and a drive shaft. The cylinder rotates the drive shaft, which then rotated the rear wheels. The cylinder has plural insert grooves and the bowl-shaped also has plural ball holes to correspond to...

20060089219 - Belt drive for a harvester with a movable cutter: A belt drive is described for connecting a stationary pulley to a relatively movable pulley. The belt drive comprises a first guide pulley mounted in a fixed position in relation to the stationary pulley and a second guide pulley mounted for movement with the movable pulley. In the invention, the...

20060089220 - Chain tensioner: A mechanical anti-backdrive chain tensioner includes a four-sided planar piston and plastic chain shoe assembly. A pair of helical compression springs of opposite helices urges the piston and shoe assembly into the chain, and a ratchet plate pawl prevents backdrive of the piston but is designed with a predetermined amount...

20060089221 - Hydraulic tensioner with improved relief valve: In a hydraulic tensioner having a relief valve inside its plunger, a relief valve spring-receiving plug, press-fit into the plunger is formed by forging a plurality of flat surfaces on its exterior. These flat surfaces, in cooperation with the cylindrical inner wall of the plunger, form plural oil passages, each...

20060089222 - Chain guide: A chain guide improves bending rigidity while satisfying requirements for compactness and weight reduction of an engine and restricting cost increases. The chain guide includes a guide body having an engaging protrusion capable of engaging with a long engaging hole formed in an engine block in a longitudinally slidable manner...

20060089223 - Belt tensioning mechanism: A belt tensioning mechanism for use in a forage harvester comprises a cranking arm pivotable about a fixed axis between two positions and connected to move an idler roller into and out of contact with a belt to be tensioned. A plate rotatable with the cranking arm cooperates with a...

20060089224 - Power transmission device: A power transmission device comprises: a pulley 1 pivotally arranged in a casing 9; a hub fixed to a rotary shaft 8; and a torque limiter, having a torque limiting function, for transmitting power between the pulley and the hub and shutting off the transmission of power by breaking a...

20060084537 - Tensioner with improved stopper: In a tensioner for a timing chain, a spring-biased plunger for urging a shoe into sliding engagement with the chain is temporarily held in a retracted condition, prior to installation of the tensioner, by a stopper having a pin that extends through a hole in the tensioner housing and engages...

20060084538 - Tensioner equipped with a no-return device and method of disabling anti-rotation device: A hydraulic tensioner is provided with a no-return device and with an anti-rotation device capable of being disabled having a pin, integral with the cylinder of the tensioner, which slides in a first longitudinal slot formed on the outer wall of the piston and a means able to disable the...

20060084539 - Guide device for a chain of a timing system of an internal combusion engine: A guide device for a chain of an internal combustion engine includes a support structure and a body. The support structure is mounted to the engine and has at least one protruding body at one end of the structure on a first side. The body has a chain sliding surface...

20060084540 - Key sprocket drive system: A key sprocket drive system for a conveyor belt having a drive drum having an outer surface. The outer surface of the drive drum is adapted to engage a securement means. A contoured collar has an inner surface and an outer surface. The contoured collar is adapted to receive the...

20060084541 - Power transmission device: A power transmission device includes a pulley 1 and a hub 2 having an inner hub 21, a rubber damper 22 and an outer hub 23. A hub side engagement portion 24 formed of an elastic material and arranged either one, or both, of inner peripheral surface and outer peripheral...

20060084542 - Conveyance system: In a slat conveyor, slats for supporting conveyed articles and personnel extend between two side-by-side, spaced, endless roller chains engaged with driving sprockets at one end of the conveying path and driven sprockets at the other end. At a location radially outward from the pitch circle, the distance between the...

20060084543 - Apparatus and method for controlling rubber flow in positive drive belts: A new and improved positive drive belt is provided which comprises a tension section and a tooth section, which has a cushion section, and a load carrying section. A fabric layer is disposed between the tension section and the load carrying section. The tension section may be a first compound...

20060079356 - Hydraulic pressure control apparatus and method for continuously variable transmission: In hydraulic pressure control apparatus and method for a continuously variable transmission, a line pressure of the continuously variable transmission is developed with a working oil supplied from an oil pump as an original pressure, and a command pressure is set to develop a line pressure target value of the...

20060079357 - Pulley: A pulley comprising a first pulley wheel and a second pulley wheel and a ratchet acting between the two pulley wheels. When substantially equal force is applied to each pulley wheel in use on a rope tail side causing the pulley wheels to rotate, a low gear ratio is achieved...

20060079358 - Image-forming device and belt unit: In an image-forming device, a belt unit is detachably mounted in the housing. The belt unit is movable along a linear insertion/removal path. The belt unit moves to a installation position along the linear insertion/removal path in the insertion direction when the belt unit is mounted in the housing. The...

20060079359 - Tensioner with drainhole: A belt tensioner is provided for mounting on a mounting surface of a structure. The tensioner comprises a body, which defines a cavity, and a drain hole that is in communication with the cavity. The drain hole is located on the body so as to be facing the mounting surface...

20060079360 - Belt tensioning device with high damping rate: A belt tensioning device having a substantially cylindrical receiving housing and a hub coaxially arranged therein. The receiving housing and the hub are supported so as to be rotatable relative to one another as well as supported by a helical torsion spring so as to be pretensioned relative to one...

20060079361 - Endless metal belt and its maufacturing method and continuously variable transmission: The first element has a first thickness. The second element has a second thickness that is smaller than the first thickness, and the number of second elements is approximately equal to that of the first elements. Both the first and second elements are supported by the hoop so as to...

20060079362 - Toothed belt: Toothed belts are provided having a plurality of teeth portions formed on a surface of a belt body rubber layer, in which a plurality of core strands are buried in the longitudinal direction of the belt, and a tooth cloth is coated on the surface of the teeth portions. The...

20060079364 - Link chain: A link chain has a plurality of chain links, with at least one chain link having a carrying unit and a guide unit, wherein a carrying surface of the carrying unit, at least in places, extends in both a feed direction and in a transverse direction of the at least...

20060079363 - Transmission chain: A transmission chain for a transmission having a drive sprocket and a driven sprocket with chain guides between the sprockets, at least one of the guides having a curved surface on which one of the runs of the chain slides in its travel between the sprockets. The chain has inner...

20060079365 - Roller chain with large plate height: A roller chain of a metallic material, with alternating inner and outer chain links which are respectively joined together via a chain joint, whereby the outer chain links comprise two parallel outer plates, joined together by means of two parallel joint pins, and the inner chain links comprise two parallel...

20060079366 - Belt for continuously variable transmission: A belt (metal V belt) has a number of elements held by a ring in an endless shape and aligned in a peripheral direction of the ring. The element includes a head portion, a neck portion and a body portion. The body portion has a V face brought into contact...

20060073924 - Line pressure control apparatus for belt-drive continuously variable transmission: In a line pressure control apparatus of a belt-drive CVT, a shift is achieved by varying V-groove widths of primary and secondary pulleys by a differential pressure between primary and secondary pulley pressures, originating from line pressure. The differential pressure is created by bringing a shift actuator, such as a...

20060073925 - Transmission with internal protective shield and bicycle incorporating same: A transmission includes a ball spline mechanism having an outer member which can rotate integrally with an inner member by means of balls housed in guide grooves and which can move in the axial direction; and a derailer which shifts a chain wrapped around a first sprocket moving integrally with...

20060073926 - Non-circular rotary disk for a timing control drive: A rotary disk which is rotatable through a rotation angle around a rotation axis, which includes a rotary disk contour having at least one elevation and a predetermined number of teeth arranged on the rotary disk contour with respective midpoints is provided. The midpoints of respective adjacent teeth having a...

20060073927 - Elastomer cushion ring for a random tooth roller chain sprocket: A sprocket is provided with a plurality of teeth spaced about its periphery, the sprocket including roots located between pairs of adjacent teeth. The roots have root radii defined as the distance between the center of sprocket and the point along the root closest to the sprocket center in the...

20060073928 - Pulley, particularly for use in internal combustion engines, method for removing a pulley, and, an internal combustion engine: A pulley (1) is described, particularly used for the transmission of circular movements in internal combustion engines, featuring a set of additional orifices (3) to make possible the positioning of a tool (8) for its removal, as well as it also refers to a method to remove pulley (1) by...