Entries |
Document | Title | Date |
20080200291 | Anti-backlash device - Anti-backlash device for an internal combustion engine, which has a timing chain, includes a body having a stop shoulder to provide a default tension for the chain; and a mounting feature with the body. The device can be part of a kit, and can be mounted in combination with the engine. A method of reducing or avoiding backlash in a timing chain in an internal combustion engine can embrace providing the device and installing it in the engine, optionally further running the engine with the installed device. | 08-21-2008 |
20090023526 | PNEUMATIC BASE FOR FACILITATING THE INSTALLATION AND TENSIONING OF A DRIVE BELT - A belt tensioner comprises a belt trained on a drive pulley driven by a drive unit mounted on a base supported on an air-spring bellows linearly extendable under fluid pressure from a collapsed position to an extended position to cause joint movement of the base, the drive unit and the drive pulley and thereby change the tension in the belt. A pressure regulator is operatively connected to the air-spring bellows for regulating the fluid pressure in the air-spring bellows such as to maintain the tension substantially constant in the belt during use. | 01-22-2009 |
20090062046 | Belt tensioner with adjustable slider plate and replaceable pulley - The present invention is directed to a versatile belt tensioner comprising a base plate, a slider plate, a pulley secured a unitary post joined to one end of the slider plate, and manually operable adjustment assembly for moving the slider plate and pulley relative to the base plate, to tension a drive belt. The base plate is formed with an inverted, U-shaped downwardly opening guideway, and the slider plate is moved within the guideway relative to the base plate to adjust the position of the pulley relative to the drive belt by way of a manually operable adjustment knob. A bearing extends between the post and the pulley seated thereon, so that the pulley can be replaced to accommodate drive belts of different size and different teeth configurations. | 03-05-2009 |
20090286635 | Tension regulating apparatus for chain of leftover food treating device - The present invention provides a tension regulating apparatus for a chain of a leftover food treating device which comprises an agitation shaft having agitation blades and rotatably installed in an agitation tank and a rotation unit installed on one side of the agitation shaft for providing the agitation shaft with a rotational force, the tension regulating apparatus comprising: a driving sprocket engaged with a driving shaft of a driving motor provided on one side of the agitation tank; a driven sprocket connected to the driving sprocket by a connecting chain and engaged with one end of the agitation shaft; and a tension sprocket provided between the driving sprocket and the driven sprocket, for regulating the tension of the connecting chain. According to the present invention, the tension of the connecting chain connecting the driving sprocket and the driven sprocket can be regulated properly by the tension sprocket installed between the driving sprocket and the driven sprocket, in order to improve the engagement state between the connecting chain and the sprockets, thereby smoothly rotating the agitation shaft and minimizing the noise | 11-19-2009 |
20100029423 | TENSIONING DEVICE FOR A TRACTION MECHANISM DRIVE - A tensioning device for a traction mechanism drive, in particular for a belt drive. The tensioning device can be produced in an advantageous manner from production and design aspects and which offers advantages over known concepts with regard to the wear of the friction surface element in that it has a base part, having a pivot arm, having a torsion spring, which is designed as a coil spring, for imparting a pivoting torque which acts between the base part and the pivot arm and which forces the pivot arm in a tensioning direction, and having a damping device for generating a damping force which counteracts a pivoting movement of the pivot arm counter to the tensioning direction. The damping device includes a friction surface element which, as such, forms a friction surface which serves to impart a friction force, and which is seated on a mating friction surface, wherein the friction surface element is designed as a ring-shaped or ring-segment-shaped component and is forced outward, in a radial direction with respect to the pivot axis, against the mating friction surface by the torsion spring, and wherein the torsion spring has a coil end section which bears against an inner surface of the friction surface element. The torsion spring is designed, at least in the coil end section which bears against the inner surface of the friction surface element, with regard to the spring cross section such that said coil end section is in areal contact with the inner surface of the friction surface element. | 02-04-2010 |
20100144472 | CONSTRUCTION COMPRISING A BEARING MOUNTED ON A PLASTIC BODY - The invention relates to a construction comprising (a) a plastic body comprising a mounting surface and (b) a bearing comprising a rotatable member and an inner member comprising a mounting bore mounted on the plastic body, wherein the plastic body comprises an axial extension comprising an axial extension head and protruding from the mounting surface, the axial extension protrudes into the mounting bore, and the construction comprises a plastic element being fixed to the axial extension head thereby keeping the bearing mounted on the plastic body. | 06-10-2010 |
20100160098 | CHAIN DRIVING SYSTEM - In a timing chain driving system, the tooth pitch of a driven sprocket from which a tension span of the chain travels toward a driving sprocket varies cyclically around the circumference of the driven sprocket and cyclically increases and decreases the effective length of the tension span in synchronism with cyclic variations in the rotational speed of the driving sprocket, thereby moderating fluctuations in chain tension. Marks on the side of the driven sprocket identify the locations at which the tooth pitch is largest and where the tooth pitch is smallest. | 06-24-2010 |
20110003656 | Transmission with connection mechanism for varying tension force - A transmission includes a drive member, a driven member having a connection mechanism, and an at least partially flexible transmission coupled to the drive member and the connection mechanism of the driven member and configured to cause movement of the driven member in response to movement of the drive member. The connection mechanism is configured to be adjusted to vary a tension force applied to the flexible transmission. | 01-06-2011 |
20110009219 | Synchronous Flat Belt Drive - The invention relates to a synchronous flat belt drive, wherein at least one series arrangement of projections ( | 01-13-2011 |
20110081996 | BELT DRIVE SYSTEM ASSEMBLY AND TENSION APPARATUS - Tension apparatus for a belt drive system. The tension apparatus includes a first component that is movable between a first tension position corresponding to a first belt length and a second tension position corresponding to a second belt length that is longer than the first belt length. The tension apparatus also includes a second component, a first component bracket coupled to the first component and defined by a first surface having a first perceptible indicator, and a second component bracket coupled to the second component and located adjacent the first component bracket. The second component bracket is defined by at least one second surface that has second perceptible indicators. The first perceptible indicator is selectively alignable with one of the second perceptible indicators in response to movement of the first component to one of the first and second tension positions such that tension of the belt is adjustable. | 04-07-2011 |
20110111898 | CLIP-TYPE TENSIONER - A clip-type tensioner member having a piston in a housing and a ratchet mechanism. A plurality of rack teeth are formed on the outer periphery of the pistons. A clip member elastically engages with the rack teeth and is positioned in a recess in the housing. The points of contact of the clip member on the housing are different in the retracted and engaged positions. | 05-12-2011 |
20110130232 | TENSIONER - The present invention is directed to decrease the impact sound of the ratchet mechanism generated at the time of piston retraction. The tensioner includes a piston | 06-02-2011 |
20110190083 | ACCESSORY DRIVE SYSTEM FOR A VEHICLE - An accessory drive system for a vehicle comprises an electric motor adapted for receiving power from a battery and a least one accessory component for the vehicle. A serpentine belt is connected the motor and to the at least one accessory component such that the motor drives the at least one accessory component. A frame supports the electric motor and the at least one accessory component. | 08-04-2011 |
20110195810 | Tensioning Apparatus with a Blocking Device - The present invention provides a tensioning device, in particular for a timing chain of an internal combustion engine, having a housing, a tensioning piston guided in a piston bore of the housing, and a locking means for limiting the retraction motion of the tensioning piston into the piston bore of the housing. The locking means comprises a locking ring arranged on the tensioning piston. Furthermore, the locking means comprises a separate locking sleeve that can be reversibly radially expanded and is arranged at one tensioning end of the housing to introduce the locking ring into the locking means in the retraction direction of the tensioning piston and to retain the locking ring in the locking means in the tensioning direction of the tensioning piston. | 08-11-2011 |
20110256969 | TENSIONER WITH SPRING DAMPER - A tensioner having a closing-type torsion spring that is employed to bias a pivot arm about a pivot shaft. The tensioner includes a damper that continuously contacts an inside surface of the torsion spring to dampen torsional vibration transmitted through the torsion spring. | 10-20-2011 |
20110269584 | BALL-TYPE TENSIONER - A tensioner for a chain or similar power transmission medium comprises a spring-biased plunger having annular rack teeth with gradually sloping forward surfaces and steeper rearward surfaces. The teeth are engaged by radially movable balls received in inclined grooves in an axially movable annular ball seat disposed in an annular groove formed in the wall of a plunger-accommodating hole in a tensioner housing. The bottoms of the inclined grooves face a steep rearward surface of a rack tooth, and the annular ball seat is axially movable in the annular groove and biased in the plunger protruding direction by a spring that exerts a biasing force greater than the biasing force exerted on the plunger. The balls and the movable annular ball seat block retraction of the plunger on engine start-up, but permit retraction when excessive force is imparted to the plunger while the plunger is in a protruding condition. | 11-03-2011 |
20120065009 | CONTROL FOR A VARIABLE TENSIONING DEVICE FOR A RIBBEDV-BELT OF A MOTOR VEHICLE DRIVE - A tensioning device is provided for a ribbed V-belt of a motor vehicle with at least one tensioning pulley that is directly and functionally connected to the ribbed V-belt and with a controller designed for varying the position and/or configuration of the tensioning pulley in dependence on the instantaneous operating state of at least one belt pulley on a driven side and/or a driving side that is connected to the ribbed V-belt in order to operationally adapt the tension of the ribbed V-belt. | 03-15-2012 |
20120088617 | ENGINE DRIVE SYSTEM - A system for an engine drive that engages a single timing band with a camshaft, a crankshaft and various accessory drives in such a configuration that the camshaft is rotated in a direction opposite that of the crankshaft, while ensuring a reflex wrap angle around each drive sprocket coupled to the camshaft, crankshaft and various accessory drives. | 04-12-2012 |
20120142467 | IDLER DEVICE - An idler device may include first bearings rotatably supporting an idler to an idler shaft, wherein a portion of the idler may be rotatably mounted to the idler shaft, and second bearings rotatably supporting the idler shaft. | 06-07-2012 |
20120322593 | DRIVE BELT SYSTEMS INCLUDING BELT STRETCH MANAGEMENT APPARATUS AND METHODS THEREOF - Drive belt systems and methods thereof are disclosed. Drive belt systems and methods thereof include driving a continuous belt around a drive pulley member and an idler pulley member by the drive pulley member and transporting a transport unit and/or reciprocating carriage unit coupled to the continuous belt in a first direction away from the drive pulley member. Drive belt systems and methods thereof also include applying at least a force to the belt in a traverse direction thereto to direct a portion of the belt about the drive pulley member by a belt stretch management apparatus coupled to the transport unit and/or reciprocating carriage unit. | 12-20-2012 |
20130005523 | ENGINE DRIVE SYSTEM - Systems and methods for an engine drive system are described herein. In one example, the system includes a camshaft, a crankshaft, and an accessory drive. The system may include a first chain coupling the camshaft and crankshaft in a first plane, and a second chain coupling the accessory drive and crankshaft in a second plane non-planer to the first plane. The system may further include a chain guide including a first surface guidingly contacting the first chain and a second surface guidingly contacting the second chain. | 01-03-2013 |
20130143702 | BELT DRIVING APPARATUS - A belt driving apparatus includes a driving pulley r a driven pulley and an endless toothed belt. Each of the driving pulley and the driven pulley includes an outer circumference surface provided with a plurality of teeth. The toothed belt, wound around the driving pulley and the first driven pulley, includes an inner surface provided with a plurality of teeth arranged to mesh with the teeth of the driving pulley and the first driven pulley. The belt driving apparatus also includes an idler pulley having a belt contact surface coming into contact with the outer surface of the toothed belt. As viewed along the width direction of the belt contact surface, the idler pulley includes a center portion and two end portions sandwiching the center portion. The center portion of the idler pulley is greater in diameter than each of the two end portions. | 06-06-2013 |
20130190115 | CAPTIVE FASTENER APPARATUS FOR CHAIN GUIDE OR TENSIONER ARM - A fixed or adjustable chain guide includes a captured shoulder bolt fastener. An adjustable chain guide such as a chain tensioner arm assembly includes a tensioner arm with a pivot bore defined about a pivot axis. The pivot bore includes an inner end opening through a rear face of the tensioner arm and an outer end opening through a front face of the tensioner arm. The tensioner arm further includes at least one resilient fastener retaining tab located adjacent the pivot bore. The shoulder bolt extends through the pivot bore and is engaged by the at least one resilient fastener retaining tab, and the at least one fastener retaining tab inhibits separation of the fastener from the tensioner arm. The fastener preferably includes an annular groove or other recess to be engaged by the one or more fastener retaining tabs in order to permit the tensioner arm to rotate relative to the fastener. New shoulder bolt fasteners are also defined, each including a shoulder region having at least one retaining feature such as an annular groove adapted to be engaged by a projecting portion of an associated component for axially capturing the fastener to the associated component while permitting rotation of the associated component relative to the fastener. | 07-25-2013 |
20130203534 | Tensioning System with Restoring Action - A tensioning system with restoring action for tensioning a flexible drive means is provided, in particular a drive chain of an internal combustion engine, composed of a tensioning apparatus and a restoring device. The tensioning apparatus comprises a housing, a tensioning piston which is guided in a movable manner in the housing and which has a detent profiling, and a detent hook for the stepped adjustment of the working range of the tensioning piston, wherein the detent hook has a clamping region for engaging into the detent profiling in the tensioning piston. Here, a retraction stop is provided at the housing, at which retraction stop, in an abutting state of the detent hook, a further retraction movement of the tensioning piston into the housing is prevented by virtue of the clamping region being clamped on the detent profiling. The restoring device has a restoring element which is separate from the tensioning apparatus and which is received in a restoring receptacle of the tensioning apparatus and which prevents the abutment of the detent hook against the retraction stop and which, in the event of abutment of the detent hook against the restoring element and a further retraction movement of the tensioning piston, causes the clamping region to spread open and permits a restoring movement of the tensioning piston. The present system also relates to a corresponding tensioning apparatus having a restoring receptacle for receiving the restoring element. | 08-08-2013 |
20130274045 | RATCHET TENSIONER - There is provide a ratchet-type tensioner that enables to readily disengage a plunger from a ratchet element in maintaining an engine, that engages the plunger reliably with the ratchet element in operating the engine so as to reduce flapping noise, and that prevents seizure of the plunger. A ratchet releasing mechanism X configured to release an engagement of the ratchet teeth | 10-17-2013 |
20130281238 | RING-TYPE TENSIONER - In a ring-type tensioner, a resilient ring that cooperates with external grooves formed on a plunger to restrict retracting movement of the plunger in a tensioner housing, is formed with manipulation parts that extend through a cut-out portion in the housing and have bulged portions that are spaced by gaps from opposed walls of the cut-out portions. A rod-shaped tool inserted into one of the gaps cooperates with the bulged portion and the wall on opposite sides of the gap to expand the ring. The manipulation parts can be formed with tool-holding portions. | 10-24-2013 |
20130331211 | CHAIN GUIDE AND CHAIN TENSIONER DEVICE - A chain guide and a chain tensioner device using the chain guide. A roller, brought into contact with a chain, comprises a support shaft supported by an opposing guide base provided along the running direction of the chain, and roller bearings each having a steel outer ring on the outer peripheral surface of the support shaft so as to be brought into contact with the chain. The roller is also configured to be assembled by inserting opposite ends of the support shaft into support recesses on facing wall surfaces of the guide base. The roller, has a vibration damping material between the support shaft and the support recess of each of the plate members. | 12-12-2013 |
20140038757 | HYDRAULIC BICYCLE COMPONENT - A hydraulic bicycle component includes a first section and a first seal rupturing structure. The first section defines a first fluid path. The first seal rupturing structure is disposed in the vicinity of the first fluid path. The first seal rupturing structure is configured to physically rupture a first seal of a first hydraulic hose when the hydraulic bicycle component is coupled to the first hydraulic hose. | 02-06-2014 |
20140235385 | CONE WITH MEMBER CVT FOR WHICH BELT TENSION CAN BE REDUCED - A CVT 6 (FIG. | 08-21-2014 |
20140274509 | BELT ATTACHMENT JIG - A belt attachment jig includes a jig body positioned such that a side surface faces a side surface of a pulley, and a belt guide portion located at one end of the side surface of the jig body and protruding along a circumference of the pulley, and having, in a surface on a base side, a holding surface for holding a belt. The belt guide portion being configured to guide the belt onto the holding surface and lead the belt out to a lateral side of the pulley, when fitted in a pulley groove of the pulley. The holding surface has a top at a portion on a side closer to the jig body, and is tilted obliquely downward in radial directions from the top and is curved in an inverted U shape along a lead-out direction of the belt so that an inner circumferential surface of the belt faces the jig body. | 09-18-2014 |
20140302954 | ELECTRICAL POWER STEERING APPARATUS - An electrical power steering system is configured to assist steering by transmitting, through a belt, a rotational force of a driving pulley coaxially coupled to a rotational shaft of an electrical motor to a driven pulley coaxially coupled to a rotational member of a steering apparatus. The electrical power steering system includes a belt tension adjustment mechanism for adjusting a tension of the belt. The belt tension adjustment mechanism includes: a guide surface and an engagement surface, which are formed as mating surfaces of a housing of the steering apparatus and a casing of the electrical motor so as to engage with each other; and a connector capable of relatively moving the engagement surface along the guide surface due to a connection force for connecting the housing and the casing under a state in which the guide surface and the engagement surface engage with each other. The guide surface is inclined by a predetermined amount with respect to an axial line direction of the rotational shaft. | 10-09-2014 |
20150024886 | VARIABLE FLOW HYDRAULIC CHAIN TENSIONER - A variable flow hydraulic tensioner ( | 01-22-2015 |
20150080159 | TIMING BELT SPACER TOOL - A timing belt spacer tool with an arcuate spacer portion of predetermined uniform thickness and an extension tab extending in an axial direction from the mid-section of the spacer portion. The extension tab may have a grip, which may be in the form of a protrusion, bulge, thickness variation, edging, bead, or the like. The opposing ends of the arcuate spacer portion may be flexible enough to be straightened in use but still return to their original arcuate shape. | 03-19-2015 |
20160010729 | TENSIONER | 01-14-2016 |
20160061299 | CHAIN TENSIONER - An object of the present invention is to provide a chain tensioner which enables operations on an elastic ring member during assembly and maintenance work to be readily performed and which is capable of eliminating protrusion of an operating portion of the elastic ring member in a direction opposite to a mounting surface, with a simple configuration. A ring holding portion | 03-03-2016 |
20160153531 | Flexibly engaged continuously variable transmission gearbox | 06-02-2016 |
20160178035 | CONE WITH MEMBER CVT FOR WHICH BELT TENSION CAN BE REDUCED | 06-23-2016 |