| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 474113000 | Pulley shifter | 43 |
| 20090156340 | VARIABLE TENSIONER - A variable tensioner according to an exemplary embodiment of the present invention may include: a base, an arm including a boss and a mounting portion, wherein the boss is co-axially and rotatably coupled to the base and a pulley is coaxially and rotatably mounted to the mounting portion, the arm forming an elastic member insert recess with the base, an elastic member mounted in the elastic member insert recess, one end of the elastic member fixed to the base and the other end of the elastic member fixed to the boss, and a tension actuator deforming a portion of the elastic member according to signal of an engine control unit. | 06-18-2009 |
| 20100016106 | BELT DRIVING APPARATUS AND RECORDING APPARATUS - A belt driving apparatus includes: a drive pulley that is attached to an output shaft of a drive motor and has teeth formed on the outer peripheral surface thereof; a driven pulley that is spaced apart from the drive pulley; an endless belt that is wound between the drive pulley and the driven pulley and is configured of a timing belt; a tension pulley that is provided on an upstream side in the vicinity of the drive pulley and comes in contact with the outer peripheral surface of the endless belt on an upstream side to apply tension to the endless belt; and a winding angle maintaining member that is provided on a downstream side in the vicinity of the drive pulley and on the side of the outer peripheral surface of the belt to maintain the winding angle of the endless belt with respect to the drive pulley. | 01-21-2010 |
| 20100173736 | METHOD AND SYSTEM FOR VERIFYING ALIGNMENT OF POWER TRANSMISSION PULLEYS - A method and system for verifying the spatial and coplanar alignment of a number of power transmission pulleys, particularly as used with an automotive internal combustion engine. A planar light source is provided at a reference location associated with the power transmission pulleys, and an illumination plane emitted by the planar light source is allowed to impinge upon the pulleys. Then, correct alignment of the pulleys is determined by comparing the locus of the intersection of the illumination plane with at least one of the pulleys with a locus of intersection of the illumination plane with another of the pulleys. | 07-08-2010 |
| 20100317474 | Adjustable Wireline Sheave for Hay Pulley - A wireline hay pulley has a support with front and back plates extending therefrom. A sheave disposed between the plates can rotate on an axle. The front plate is affixed to the support, while the back plate is removably connected to the support. The front plate has a round opening in which an eccentric bushing on the axle can rotate. When the back plate is disconnected from the support, the back plate can turn the axle fixed in a slotted opening. An eccentric bushing on the axle rotates in an opening of the front plate, thereby shifting the sheave away from the support. With the back plate moved away and the sheave shifted downward, an operator can readily rig up a wireline in the sheave's slot. | 12-16-2010 |
| 20110183798 | SWITCHABLE FRICTION CLUTCH HAVING A DRIVE WHEEL DRIVEN BY A DRIVE MOTOR VIA A DRIVE BELT, AND DRIVE UNIT - The proposal is for a switchable friction clutch having a drive wheel ( | 07-28-2011 |
| 20110201466 | AUTO-TENSIONER - An automatic tensioner includes a base, a rotary member to which a pulley around which a belt is wound can be attached, a coil spring including one end locked on the base and the other end locked on the rotary member, an elastic element including one end locked on one of the rotary member and the base and the other end which is a free end and extending along an inner circumferential surface of the other of the rotary member and the base, and a friction member connected so as to be brought into contact with the inner circumferential surface, wherein the coil spring is disposed in such a state that the coil spring is compressed in an axial direction and the friction member is pressed against the one of the rotary member and the base by a repulsive force attempting to expand in an axial direction. | 08-18-2011 |
| 20110218066 | PULLEY TENSIONER FOR AN OIL WET BELT DRIVE - A tensioner ( | 09-08-2011 |
| 20110237373 | AUTOMATIC BELT TENSIONING SYSTEM - A device and method of use of that device to automatically adjust the tension of a belt(s) used in a driven system is disclosed. The system includes at least one driving device or power source and at least one driven device. The system further includes a tensioning member that serves to continuously compensate for slack which naturally develops in the belt or belts during normal operation of the system, as well as preloading the device with the appropriate amount of tension. The device provides a manually operated adjustment which allows for user control of the tensioning member, as well as an indicator which displays the amount of elongation of a belt and/or the desired preloaded tension of the system, thus simplifying removal, application, and replacement of belts, etc. | 09-29-2011 |
| 20110245001 | ATTACHMENT ASSEMBLY AND DRIVE UNIT HAVING SAME - A drive unit comprising a guide channel that has a first pulley at one end that rotates about a fixed pulley axis. The drive unit also includes a flexible drive member having a plurality of spaced windows, an attachment assembly moveably attached to the guide channel, and an adjustable pulley assembly coupled to the guide channel that has a second pulley that rotates around a moveable pulley axis that can be adjusted to change the distance between the fixed pulley axis and the moveable pulley axis to take up slack in the flexible drive member. | 10-06-2011 |
| 20140051533 | AUTO-TENSIONER - An auto-tensioner includes: a stationary member having a first cylindrical portion; a rotatable member having a second cylindrical portion at least partially overlapping the first cylindrical portion in a radial direction; and a drainage mechanism provided at a boundary part of the first and second cylindrical portions, including a water inlet configured by a gap between an outer peripheral surface of the first cylindrical portion and an outer peripheral surface of the second cylindrical portion and being open along a peripheral direction, a water passage which is configured by a gap between a water collecting groove formed along the peripheral direction in the outer peripheral surface of one of the two cylindrical portions and the other cylindrical portion, and communicates with the water inlet, and at least one drainage port formed in a peripheral wall on an outside in the radial direction of the water passage | 02-20-2014 |
| 20140357436 | BICYCLE CHAIN TENSIONER - A bicycle chain tensioner includes a bicycle mounting bracket, and a chain tensioning element. The bicycle mounting bracket is configured to be mounted to a bicycle. The chain tensioning element is movably coupled to the bicycle mounting bracket by a first coupling structure to move in a lateral direction and by a second coupling structure to move in a direction different from the lateral direction, during operation of the bicycle chain tensioner. | 12-04-2014 |
| 20140357437 | BICYCLE CHAIN TENSIONER - A bicycle chain tensioner includes a bicycle mounting bracket, and a chain tensioning element. The bicycle mounting bracket is configured to be mounted to a bicycle. The chain tensioning element is movably coupled to the bicycle mounting bracket by a first coupling structure to move in a lateral direction and by a second coupling structure to move in a direction different from the lateral direction, during operation of the bicycle chain tensioner. | 12-04-2014 |
| 20150038275 | CHAIN SAW - A chain saw is provided with an adjustment mechanism that adjusts the tension of a saw chain | 02-05-2015 |
| 20150072816 | CHAIN TENSIONING DEVICE - A chain tensioning device is basically provided with a main body, a chain guide, a rotary fluid damper unit and a rotational resistance adjustment device. The main body is configured to be mounted to a bicycle. The chain guide is pivotally coupled to the main body to rotate around a rotational axis with respect to the main body. The rotary fluid damper unit is operatively connected between the main body and the chain guide to provide rotational resistance to the chain guide around the rotational axis. The rotational resistance adjustment device is operatively connected to the rotary fluid damper unit to change a rotational resistance setting of the rotary fluid damper unit with the rotational resistance adjustment device in an operative state. | 03-12-2015 |
| 20150072817 | CHAIN TENSIONING DEVICE - A chain tensioning device is basically provided with a main body, a chain guide and a rotary fluid damper unit. The main body is configured to be mounted to a bicycle. The chain guide is pivotally coupled to the main body to rotate around a rotational axis with respect to the main body. The rotary fluid damper unit is operatively connected between the main body and the chain guide to provide rotational resistance to the chain guide around the rotational axis. The rotary fluid damper unit is a separate unit from the main body, the rotary fluid damper unit being detachably mounted on the main body. | 03-12-2015 |
| 20160040759 | ACCESSORY MOUNTS FOR TENSIONING SYSTEMS - A tensioning system includes a drive assembly, an accessory mount coupled with the drive assembly, and an accessory system coupled with the accessory mount. The accessory mount is arranged to apply tension to at least one of the drive assembly and the accessory system. | 02-11-2016 |
| 20160040760 | TENSIONER ASSEMBLY - A tensioner assembly includes a pulley arm pivotable about a pivot shaft, and a tension pulley mounted on the pulley arm at its end remote from the pivot shaft and pressed against a belt to keep the tension of the belt. The tension pulley is rotatably mounted around a base portion of the pulley arm through a rolling bearing with the inner surface and axial rear end surface of the bearing inner race in contact with the outer peripheral surface of the base portion and an end surface of a shoulder of the base portion, respectively. The base portion has an axial through hole formed with an internal thread on its inner surface. A support bolt is threaded into the through hole from the axial front end to press the rolling bearing against the end surface of the shoulder. The internal thread has an axial front end located in the vicinity of, or axially rearwardly of, the end surface of the shoulder. | 02-11-2016 |
| 474114000 | Pulley on shaft of adjustably mounted drive motor | 4 |
| 20110165980 | Belt Tensioning Device - A belt tensioning device ( | 07-07-2011 |
| 20110306450 | Ratchet-based drive belt adjusting device - A ratchet-based drive belt adjusting device includes a rotatory seat having a connecting end to be pivotally connected to a machine tool; a ratchet hole extending along the rotational direction, wherein the ratchet hole has one peripheral edge formed with a plurality of unidirectional ratchets; a through hole for the rotatory shaft to pierce therethrough, wherein the rotatory shaft after passing thorough the through hole is mounted with a pulley around which a drive belt is mounted; a lever having an escape tooth positioned inside the ratchet hole, wherein the lever and the escape tooth are rotatably and coaxially connected to the machine tool so that the escape tooth is allowed to movably engage with any of the ratchets; and a driving wheel set axially connected to the machine tool for being mounted with the drive belt. | 12-15-2011 |
| 20120258828 | Belt Tensioner - A tensioner system for tensioning a power transfer member such as a chain or a belt is disclosed. In one example, the system includes a base adapted to rotate about a main shaft that is operatively coupled to a motor, a housing positioned around the main shaft and a plurality of deformable elastic members positioned within the housing. The system further includes a plurality of deforming members positioned within the housing around the main shaft, wherein the plurality of deforming members are adapted to be urged in a radially outward direction so as to deform the deformable elastic members. | 10-11-2012 |
| 20130237353 | MANUAL TORQUE ADJUSTER - The invention relates to a manual torque adjuster for a motor vehicle steering system, having an electric motor ( | 09-12-2013 |
| 474116000 | Pulley is vehicle drive pulley (e.g., bicycle sprocket, etc.) | 7 |
| 20080200292 | Bicycle freecoaster hub - The present invention refers to a bicycle hub being part of the drive mechanism | 08-21-2008 |
| 20080234082 | Bicycle Multi-Gear Cassette - A bicycle multi-gear cassette mountable to a wheel hub that generally includes a truncated conical shell and a plurality of toothed sprockets having different numbers of teeth. The shell includes a plurality of coaxial annular cylinders of variable diameter extending along an axis of the shell and a plurality of coaxial annular discs of variable diameter extending radially of the axis. The cylinders and discs are alternatingly arranged in a stepped sequence. The toothed sprockets are disposed on the shell and extend radially of the shell axis. At least one of the toothed sprockets includes a recess on a side facing an adjacent toothed sprocket having a smaller number of teeth. The recess includes a first region having a first depth and a second region having a second depth. The first depth is greater than the second depth. The shell and the plurality of toothed sprockets embody a single piece. | 09-25-2008 |
| 20080312016 | Light weight Chain Wheel Having Concrete Structure - A chain wheel comprises a chain wheel body formed with a plurality of combining holes for assembly a crank of a bicycle and a plurality of through holes for riveting so that the chain can be engaged with different chain wheel body for speed change; the chain wheel body including an outer periphery and an inner periphery; the outer periphery being formed with a teeth portion with a plurality of tooth for engaging with a chain; a coarse portion formed at a back surface of the chain wheel body; and a combining portion covering upon a part of the outer periphery and both at the front surface and back surface of the chain wheel body; the combining portion being extended through the inner periphery so as to be combined as an integral body at both the front surface and back surface of the chain wheel body. | 12-18-2008 |
| 20110034280 | BIKE CHAIN CHECKER - A bike chain checker includes a base, an opening formed in the bottom of the base, a leaning portion extended from one sidewall of the base toward the opening, two threaded holes bored in another sidewall for respectively engaging with a chain wheel screw and a pointer screw. The pointer is freely hung downward. A marking line is marked under one of the threaded holes. A groove is formed on the top of the base for fitting a level bar, and the level bar fixed by a screw engaged with a threaded hole bored in a sidewall of the groove. Thus, the level bar is positioned horizontally if the pointer overlaps the marking line. If the chain does not overpass the level bar when pulled up, it represents the loose allowance of the chain is acceptable. But, if passing over, the chain is too loose, needing to be adjusted. | 02-10-2011 |
| 20110130233 | BICYCLE SPROCKET SUPPORT ASSEMBLY - A bicycle sprocket support assembly is provided with a sprocket support body, a first sprocket support member and at least first and second sprockets. The sprocket support body has a tubular shaped part with an exterior surface and an interior surface arranged around a center longitudinal axis. The first sprocket support member is integrated with the exterior surface of the sprocket support body as a one-piece, unitary member and projects radially from the exterior surface of the sprocket support body. The first and second sprockets are fixed to the first sprocket support member by at least one fastener with the first and second sprockets being supported at axially spaced apart locations along the center longitudinal axis of the sprocket support body. | 06-02-2011 |
| 20120129637 | TRANSMISSION DEVICE FOR SELF-PROPELLED EQUIPMENT AND SELF-PROPELLED EQUIPMENT FITTED WITH SUCH A TRANSMISSION - Transmission device for self-propelled equipment, includes a housing having a driving input shaft transmitting movement to an output shaft, the input shaft bearing a receiving pulley around which pulley a belt transmission is wrapped. The input shaft also bears a component that rotates as one with the shaft and a member for controlling the movement of the pulley along the input shaft in terms of the pulley movement towards or away from the component so that the pulley, which is mounted with freedom to rotate on the input shaft, can be moved from a disengaged position when it is away from the component, into an engaged position when it is close to the component, the pulley having a groove of constant predetermined width for accepting the belt so that when the belt is taut inside the groove, the belt tension is maintained as the pulley moves along the input shaft. | 05-24-2012 |
| 20140315672 | TENSIONING DEVICE FOR A SECONDARY TRANSMISSION - The invention refers to a device for adjusting the tension of a motorcycle chain, the chain being the transmission element between two rotating shafts; that of the motorcycle engine output and the rear wheel axle. | 10-23-2014 |
| 474117000 | Spring biased in belt-tensioning direction | 12 |
| 20090054185 | BELT TENSIONER AND BELT EXHANGING METHOD OF BELT TENSIONER - A tensioner arm comprises a tool-engagement portion for engaging with a tensioner-arm rotation tool, and a jig-holding portion which has a through hole for accepting a tensioner-arm fixation bar jig being inserted thereinto from above at a portion of the tensioner arm extending upward from the base end portion. A bearing case comprises a contact face portion which is provided at a face located below the jig-holding portion of the bearing case so as to accept the bar jig being inserted into the through hole of the tensioner arm, and an engagement stair portion which is provided at the contact face portion so as to engage with the bar jig such that move of the tensioner arm toward the belt by the biasing mechanism is restricted. A belt tensioner which enables an easy belt exchanging even by a single worker without detaching surrounding components of the engine can be provided. | 02-26-2009 |
| 20100069185 | Tensioner - A tensioner comprising a base having a sleeve, an arm pivotally engaged with the sleeve, a spring engaged between the arm and the base, a pulley journalled to the arm, an adjuster engaged with the sleeve for rotationally adjusting a position of the sleeve on a mounting surface, three or more concentric cylindrical bushings, each bushing frictionally engaged with the arm and the sleeve for damping an arm movement, and the cylindrical bushings suitable for operation in lubricant. | 03-18-2010 |
| 20100197432 | TENSIONING DEVICE FOR TRACTION MECHANISM DRIVES - The invention relates to a tensioning device ( | 08-05-2010 |
| 20110143873 | TENSIONING SYSTEM WITH SELF-LOCKING MECHANISM - According to aspects illustrated herein, there are provided methods and systems for applying continuous tension on a belt/cable system. The automatic tensioning system includes a pivot mechanism and a locking mechanism. The pivot mechanism includes a pivot arm extending between an idler pulley and a pivot point. The idler pulley is mateable with a belt/cable. The belt/cable is routed about the idler pulley. The idler pulley rotates by the movement of the belt/cable, and the pivot arm pivots in an opposing direction from the belt/cable at the pivot point to apply continuous tension to the belt/cable as the pivot arm pivots. The locking mechanism is in communication with the pivot arm to secure the pivot arm in position, and the locking mechanism is adjustable. | 06-16-2011 |
| 20120094793 | BELT TENSIONING UNIT - A belt tensioning unit ( | 04-19-2012 |
| 20120196710 | QUICK RELEASE TENSIONER - A tensioner includes a base and an idler support assembly slidably retained on the base, the idler support assembly including a support element having a cam surface at a first end. A spring loaded handle assembly includes a tension bar rotatably mounted to the base, and a handle longitudinally adjustably mounted to the tension bar, an engagement element, and a biasing element intermediate the engagement element and the handle. The handle is assembly rotatable between a first position and a second position. The engagement element disengages the cam surface in the first position and the engagement element engages the cam surface in the second position. | 08-02-2012 |
| 20130345003 | CHAINSAW WITH GUIDE BAR CLAMPING AND CHAIN TENSIONING ASSEMBLY - A chainsaw includes a chainsaw body, a chainsaw bar configured to be operably coupled to a cutting chain, and a clutch cover disposed proximate to a portion of the chainsaw bar to facilitate clamping the chainsaw bar to the chainsaw body. The clutch cover may be configured to receive a tension sub assembly disposed at a portion of the clutch cover to enable both adjustment of chain tension in a first mode of operation and clamping of the chainsaw bar in a second mode of operation. The tension sub assembly may include a mode shift mechanism configured to move between a first position in which the tension sub assembly operates in the first mode and a second position in which the tension sub assembly operates in the second mode. | 12-26-2013 |
| 20140141910 | CHAIN-TENSIONING DEVICE - A chain-tensioning device comprises at least one main chain-tensioning sprocket wheel on which a chain engages, a main spring that urges a shaft of the main chain-tensioning sprocket wheel in a direction of tensioning of the chain, and an auxiliary cam element that engages a cam-follower element operatively connected to the shaft of the main chain-tensioning sprocket wheel so as to tend to push this shaft in the tensioning direction under the action of auxiliary elastic means. The auxiliary cam element automatically recovers any play that is generated owing to wear of the chain and prevents a movement of the chain-tensioning sprocket wheel in a direction opposite to the tensioning direction. In a variant, two main chain-tensioning sprocket wheels are provided, each having a respective auxiliary cam element. The two auxiliary cam elements may form part of a single pivoted lever. | 05-22-2014 |
| 20140342862 | CLAMPING DEVICE FOR A BELT DRIVE - A clamping device ( | 11-20-2014 |
| 20150031484 | TENSIONER WITH SINGLE TORSION SPRING HAVING MULTIPLE NESTED WINDINGS - A tensioner is disclosed that may be part of a power system where the tensioner provides tension to an endless power transmitting element such as a belt, chain, or other continuous loop. The tensioner includes an arm that is rotatable about a first axis and a spring. The spring has at least one inner winding, an outer winding, and a transition zone. The outer winding has an outer coil that defines an outer diameter. The inner winding has an inner coil that defines an inner diameter. The inner diameter of the inner coil is less than the outer diameter of the outer coil such that at least a portion of the inner winding is received by the outer winding. The outer winding and the inner winding of the spring both urge the arm to rotate about the first axis and into tensioning engagement with the power transmitting element. | 01-29-2015 |
| 20150051033 | TENSIONER AND ENDLESS DRIVE ARRANGEMENT - In one aspect, a tensioner is provided, comprising, a first tensioner arm and a second tensioner arm, a first wheel and a second wheel. The first tensioner arm is pivotable about a first pivot axis. The second tensioner arm is pivotally connected to the first arm so as to be pivotable about a second pivot axis located at a selected distance from the first pivot axis. The first wheel is rotationally connected to the first tensioner arm about a first rotation axis. The second wheel is rotationally connected to the second tensioner arm about a second rotation axis. The first and second wheels are configured to engage an endless drive member. The first and second wheels are biased in respective first and second free arm directions. | 02-19-2015 |
| 20150308545 | ORBITAL TENSIONER - An orbital tensioner comprising a base, a carrier engaged with the base and revolvable about an axis A-A, a first pulley journalled to the carrier, a pivot arm mounted to the carrier, the pivot arm pivotable about an axis B-B, a second pulley journalled to the pivot arm, the axis B-B is orbitally movable about axis A-A, a spring engaged between the carrier and the pivot arm, and a damping mechanism frictionally engaged between the carrier and the base to damp a carrier movement. | 10-29-2015 |
| 474118000 | Pulley shiftable into engagement with exterior of belt surface | 3 |
| 20140155209 | CHAIN GUIDE AND CHAIN TRANSMISSION DEVICE - A chain guide includes a plurality of roller shafts provided on one side of a timing chain for torque transmission and spaced from each other in the longitudinal direction of a guide base facing the timing chain. The respective roller shafts rotatably support chain guiding rollers in the form of needle roller bearings. The rollers are cylindrical members having the same diameter over the entire axial direction such that the rollers are movable in the axial direction relative to the timing chain. The rollers are supported so as to be movable in the axial direction. When the rollers and the timing chain move relative to each other in the axial direction and the rollers move relative to the roller shafts in the axial direction, contact portions between the rollers and the roller shafts are displaced in the axial direction, so that radial loads are not locally applied. | 06-05-2014 |
| 20140357438 | Image Forming Apparatus - An image forming apparatus including a pressing mechanism that applies a tension to a belt that is wound around a drive section and an input section and configured to transmit a driving force from the drive section to the input section, the belt including an urging member, and a swing member that swings to press the belt when urged by the urging member, the swing member including a pivot portion that serves as a pivot point around which the swing member swings, a first end portion that is spaced apart in a first direction from the pivot portion and configured to contact the belt, and a second end portion that is spaced apart, in a second direction different from the first direction, from the pivot portion and configured to be urged by the urging member. | 12-04-2014 |
| 20150018148 | Belt Tensioning Device for Being Used With a Starter Generator - A belt tensioning device for a belt drive which comprises a driving machine with a driving belt pulley drivable by a driveshaft around a driving axis, and a plurality of further belt pulleys and with an infinite belt which is wrapped around the driving belt pulley and the further belt pulleys wherein the belt tensioning device comprises a housing in which two tensioning arms are supported so as to be pivotable around a common pivot axis, in which tensioning arms there are supported tensioning rollers with axes of rotation extending parallel to the driving axis, wherein the tensioning arms are supported relative to one another by spring means, wherein, with the driving belt pulley mounted at the driving machine, the housing can be mounted in that, in an annular region surrounding the driveshaft of the driving belt pulley, the housing is contact-free relative to the driving machine. | 01-15-2015 |
