Abstract: A camshaft assembly includes an inner shaft, an outer tube surrounding and rotatable relative to the inner shaft, and two groups of cam lobes mounted on the outer tube. The first group of cam lobes is fast in rotation with the outer tube and the second group is rotatably mounted on the outer tube and connected for rotation with the inner shaft by means of pins that pass with clearance through slots in the outer tube. A spring is incorporated in the camshaft assembly to bias the inner shaft relative to the outer tube towards one extreme of its angular range.

Abstract: An apparatus and accompanying method are disclosed for a handgrip based gear-shifting mechanism used to manipulate the front and rear derailleur cables on a vehicle having a multi-sprocket gear system. The gear-shifter comprises a substantially hollow handgrip member that has first and second cam guide paths in the bore of its substantially cylindrical surface. First and second cam followers, preferably located inside the bore of the handgrip member, engage the first and second cam guide paths respectively. The first and second cam followers are coupled to the front and rear derailleur cables, such that a single rotation of the handgrip simultaneously adjusts the positions of the first and second cam followers and the front and rear derailleur cables.

Abstract: A cam for a brake is provided that allows for greater brake shoe travel and thicker brake linings while providing the same or greater mechanical force as compared to conventional cams. One or more lobes of the cam include multiple portions having varying profiles in axial cross-section. The variation in the cam profiles results in a cam in which the outermost ends or tips of the lobes are longer than in conventional cams yet retain the same mechanical strength.

Abstract: A four-wheel drive work vehicle includes an engine, a pair of right and left steerable wheels rotatably driven by receiving power from the engine via a differential mechanism, a pair of right and left non-steerable wheels rotatably driven by receiving power from the engine via right and left side clutches and a pivotal cam mechanism for operating a clutch operating member for controlling the side clutch based on a steered displacement of the steerable wheels. The pivotal cam mechanism includes a cam member which is displaced based on the steered displacement and a cam follower member operably associated with the cam member.

Abstract: A cam-operated guiding device for controlling a related movement of a member which is moreover continuously displaced, the device including two mutually transversely offset parallel cams with which co-operate respectively two coaxial rollers for bilaterally guiding said member. One of the cams is mounted via elastically deformable members designed to allow an elastic displacement of the cam relative to the other cam.

Abstract: A device for adjusting a camshaft of an internal combustion engine of a motor vehicle has a stator and a rotor fixedly connected to a camshaft and rotatable relative to the stator. A drive wheel is fixedly connected to the stator and is centered by the camshaft. The stator has a peripheral area provided with a centering element interacting with a counter element provided on the drive wheel for aligning the drive wheel in a rotational direction relative to the stator.

Abstract: Swivel actuator device for lift control of a gas exchange valve in a cylinder head of an internal combustion engine comprising a swivel motor having a shaft on which is provided a first operating element having a control path for opening the gas exchange valve, whereby a second operating element having a second control path provided on the first operating element. Due to the arrangement of the swivel actuator device, less electric power is needed at low rotational speeds and processing of the fuel mixture is improved.

Abstract: An apparatus for applying a reaction force to a pedal member. The apparatus includes: a reaction-force applying device for applying the reaction force to the pedal member and changing the reaction force; and a reaction-force controlling device for controlling or changing the reaction force on the basis of a depressing stroke of the pedal member, according to a predetermined pattern of change of the reaction force. The reaction-force applying device includes a spring member connected at one of its opposite ends to a connected portion of the pedal member for applying a reaction force to the pedal member; and a pivotable cam member held in engagement with the other end of the spring member, such that the other end of the spring member is movable toward and away from the connected portion of the pedal member, in response to pivot motion of the cam member.

Abstract: A tool changing device includes a conjugate cam composed of two plate cams and the conjugate cam is mounted to the cam axle. The two plate cams are operatively engaged with two rollers on two sides of a gear so that the gear is periodically rotated to drive the tool shaft which is rotated and precisely positioned to change the tools as expected.

Abstract: An advancing/retracting mechanism having a pair of cams is disclosed. The advancing/retracting mechanism includes a first cam, a second cam, and a barrel. The first cam includes an angled surface and a shoe, and the second cam includes an angled surface and a slider. The shoe engages with a helical surface in the barrel, and the slider engages with a straight surface in the barrel. The first cam travels a first distance along the longitudinal axis of the barrel from a first to a second state, and the second cam travels a second distance that is greater then the first distance along the longitudinal axis of the barrel from the first to the second state.

Abstract: The invention relates to a valve drive, in particular for internal combustion engines of motor vehicles, comprising at least one cam element (2) that is located on a driven shaft (1) and at least one lifting valve (10), which has a valve stem (11) and can be displaced by the cam element (2). The cam element (2) is pivotally mounted inside a flexible encapsulation element (4), which is connected to one end of the valve stem (11). The end of the valve stem (11) is guided in the displacement direction of the valve (10).

Abstract: An over-mold lever in particular for use in a clamping mechanism for a vehicle steering column, is preferably made primarily of plastics material and includes a main portion (1) a head (5) and a hand grip (4). The head (5) is molded over an integrated camming surface (2), which is provided with one or more, preferably four, raised camming portions (2A). The camming surface (2) is arranged for engagement with a corresponding camming surface of another cam component to operate the clamping mechanism.

Abstract: The invention relates to a method for producing cams (1) for a camshaft. The cams are produced by bending together the ends of long profile strips (4) or by bending and putting together several pieces of profile strips in a circumferential direction. Cams produced in such a way are preferably welded onto the shaft. The invention also relates to suitable welding methods such as resistance welding, laser-beam or electron-beam welding and corresponding devices.

Abstract: An axial adjusting device includes two discs which are rotatable relative to one another and coaxially supported relative to one another, between which two discs balls are guided in pairs of ball grooves. The depth of the pairs of ball grooves is variable across the circumference of the discs. One of the discs is axially supported and one is axially displaceable against resilient returning forces of a first spring mechanism. At least one of the discs can be driven by a motor via a gear drive. A second spring mechanism is provided which—during the return motion of the discs, after the balls have reached their end positions in the ball grooves, which end positions are determined by the greatest groove depth—permit the drivable disc to overshoot against the resilient returning forces of the second spring mechanism.

Abstract: A variable valve actuation mechanism includes a control shaft assembly and a body. The control shaft assembly is pivotable relative to a pivot axis. The body is pivotally disposed on the control shaft assembly, and includes an input cam follower and at least one output cam surface. The input cam follower engages an input cam lobe, and the output cam surface engages a corresponding output cam follower. A spring engages the body and biases the input cam follower into engagement with the input cam lobe.

Abstract: A cam apparatus includes: a cam driver; a cam slide adapted to move in contact with the cam driver and having a through hole; a cam-slide supporting device having a cam-slide supporting base which movably supports the cam slide, has a front wall portion disposed at a forward position in a moving direction of the cam slide, and has an opening in a backward position opposing the front wall portion in the moving direction of the cam slide; and a returning mechanism for returning the cam slide to an initial position thereof.

Abstract: A roller cam with pairs of sliding surfaces and wear plates located in an upper plane and with pairs of laterally slanted sliding surfaces and pairs of laterally slanted guiding wear plates located in a lower plane. The guiding wear plates are longitudinally contained between end plates to avoid using screws, which might loosen under stress, to secure the wear plates. Adjusting setscrews are used to laterally adjust the guiding wear plates, and positive return members are used to provide a tool retracting force in addition to that provided by a retracting spring.

Abstract: A cam mechanism for a folding cylinder or gripping cylinder of a printing machine have a cam disk assembly with two cam disks located adjacent to one another. The cam mechanism has good kinematic properties and is subject to low wear, the outer casing of the cam roller has two convex curvatures arranged adjacent to one another and running circumferentially around the cam roller, each curvature co-operating with one of the cam disks.

Abstract: A device for transforming a rotational movement into a reciprocating to-and-fro movement has a cam element on a driven carrier shaft. The cam element has an eccentric control area, or lobe. A cam follower can be displaced or pivoted by the cam element. The cam element is rotationally mounted in a flexible encompassing element which is movably connected to the cam follower perpendicular to the axis of rotation of the cam element. The flexible encompassing element surrounds the eccentric control surface of the cam element and a non-driven bearing surface for the cam follower.

Abstract: The present invention relates to brakes mounted in particular on all terrain bicycles. It relates, as to the first embodiment, to a brake comprising identical arms (17) mounted freely in rotation on trunnions, carrying for each of the arms (17) at its upper portion a hollow V shaped cam (23) pierced at its middle, the angle of the dihedral of about 90°, the bisecting edge horizontal, which receives a pin (9) carrying a cam finger (21) which acts against the cam (23) to close the brake. The pin (9) is secured to the end (3) of the movable arch (1) which controls the action of the brake with a movement of rotation from holes (4, 5) located in the upper central portion of the arch (1). Compression springs (26) disposed about pins (9) ensure the holding and return of the arms (17) into position.

Abstract: The invention relates to a furniture drive (2) for adjusting parts of a piece of furniture in relation to one another which is configured as a dual drive. Said drive comprises two drive units (4, 4?), every drive unit (4, 4?) being provided with a linearly displaceable drive element that is functionally linked with a pivoted lever for pivoting said lever in the mounting position of the furniture drive. Said pivoted lever in turn is functionally linked with a part of the piece of furniture to be adjusted. The drive according to the invention is further characterized in that the linearly displaceable drive element or a support element (24) linked therewith is provided with a support surface (26) for supporting the pivoted lever (18) in a position remote from its pivot axis (16) in the mounting position of the furniture drive (2), which surface is inclined with respect to the axis of motion (29) of the drive element.

Abstract: The dobby according to the invention comprises, at the level of each of its blades, an oscillating piece associated with an actuation element, at least one mobile coupling member borne by the actuation element and two pivoting levers subjected, on the one hand, to the action of a reading device and, on the other hand, to that of elastic means which tend to engage catches of the pivoting levers either with a jamming surface provided on the actuation element, or with the coupling member, while the lever in engagement with the jamming surface is out of range of a selector of the reading device. In addition, mechanical members independent of the reading device are adapted to displace, against the action of the elastic means, a lever whose catch is not in engagement with the jamming surface, with the result that it does not interfere with the angular displacement of the selector.

Abstract: An actuator including a motor in driving connection with a cam rotatable about a cam axis, the actuator further including a cam follower connected to an output member, in which powered rotation of the cam causes the cam follower to be radially displaced relative to the cam axis to provide differing output positions of the output member and in which the profile of the cam includes a radial stop which, in conjunction with the cam follower, act as a detent so that the cam follower is capable of controlling the position of the cam.

Abstract: A valve lift mechanism, in particular for internal combustion engines of motor vehicles, has a driven cam element, a valve control member which can be driven (translational movement or pivot rotation) by the cam element, and a flexible enveloping element, wherein the cam element is rotationally mounted. The enveloping element may be formed of an open loop with two ends connected by a holder of said valve actuator, and it is movably connected to the valve control member in the plane perpendicular to the axis of rotation of the cam element.

Abstract: A camshaft rotational detection structure is configured that can improve the precision with which the camshaft rotational angle is detected. The camshaft rotational detection structure detects the rotational angle of a camshaft to which rotation is transmitted from the crankshaft of an engine through a cam sprocket mechanism. The camshaft rotational detection structure is provided with a cam thrust flange, a detection target, and a sensor. The cam thrust flange is provided on the camshaft near the end of the camshaft where the cam sprocket mechanism exists and serves to restrict axial movement of the camshaft. The detection target is provided on the cam thrust flange. The sensor is arranged facing opposite the detection target and is configured to detect the rotational angle of the camshaft.

Abstract: A variable duration valve timing camshaft is disclosed. The camshaft has a shaft with fixed cam lobes and lobe modifying elements that are adapted to move outwardly as the rate of rotation of the camshaft increases thereby cooperating with the lobes to continuously increase the angular distance at constant radius of each fixed valve lobe's nose. The lobe modifying elements are further adapted to move inwards as the rate of rotation of the camshaft decreases thereby continuously decreasing the angular distance of constant radius of each fixed valve lobe's nose until it equals that of the fixed lobe. The lobe modifying elements are pivotally connected to the camshaft.

Abstract: A tilt steering apparatus comprises a lock lever rotatable around the axis of a supporting shaft. When a lock lever is rotated around the axis of the supporting shaft, a cam surface is rotated relative to a cam follower. As a result, the cam surface presses the cam follower against side plates of a fixed bracket, thereby achieving tilt locking. The cam surface has a plurality of slopes corresponding to a rotation stroke position of the lock lever. The operating torque of the lock lever at the time of a locking operation is reduced without increasing the range of the operating angle of the lock lever.

Abstract: An improved cam and follower arrangement suitable for actuating, for example, poppet valves of an internal combustion engine and method and apparatus for forming the cam surface. This permits the use of skewed valve axes without using multiple rocker arms for each valve. The shapes are chosen and formed to provide better contact area and permits the cams to be ground with conventional grinding methods and for multi-cylinder engines.

Abstract: A cam-operated guiding device for controlling a related movement of a member which is moreover continuously displaced, the device including two mutually transversely offset parallel cams with which co-operate respectively two coaxial rollers for bilaterally guiding said member. One of the cams is mounted via elastically deformable members designed to allow an elastic displacement of the cam relative to the other cam.

Abstract: A direct acting two-step valve train uses direct acting switching valve lifters combined with high and low lift or no lift cams providing differential valve lifts for dual intake valves of cylinders actuated by the low lift cams. The combination provides various alternative operating modes utilizing the charge enhancing qualities of differential intake valve lifts in low lift operation. These modes include (1) high lift to differential low valve lift and (2) high lift to low lift on one bank and high lift or no lift (deactivated) on the other. A cam phaser may also be included to vary cam phasing on single or dual camshafts.

Abstract: A camshaft receives cams and camshaft bearings. The chamshaft is rectified in the zones receiving the camshaft bearings such that the diameter of the shaft in the bearing zones is smaller than the diameter of the shaft in the cam receiving zones. Thus, it is possible to mount the cams simply without damaging the bearing zones when the cams are mounted on the shaft, and to provide an economical manufacturing process.

Abstract: The present invention seeks to provide a system for high speed intermittent motion. The system consists of one or more intermittent motion generators. Each motion generator consists of a first and a second drive system with each drive system having its own control software and control input information received from a programmable logic controller (PLC). Each motion generator employs dual cams with fixed angular rotation. The dual cam combination consists of a first cam nested within a second cam. The dual cams permit independent and individual motion generation for each motion generator. The angular rotation of the second cam relative to the angular rotation of the first cam causes a linear displacement which generates intermittent linear motion for each individual motion generator.

Abstract: The invention relates to a finished camshaft (10) with several cams (1), fixed to a shaft (9), by means of at least one welded joint (11) each, whereby the shaft is made from a first low-carbon steel and the cams comprise a hardened or hardenable rocker running surface (2) made from a high-carbon steel (3) and are made from at least two different materials with a second low-carbon steel, which may be efficiently welded to the steel of the shaft, provided in at least one of the regions (4) affected by the welding.

Abstract: The invention relates to a hollow shaft. The aim of the invention is to mount, with as little complication as possible, a component (2) head-on on the peripheral surface of a shaft that is at least sectionally configured as a hollow shaft (1) and to leave as much space as possible for hydraulics channels passing through the shaft. According to the invention, the shaft is mechanically flared by means of an axially movable device and a support (4) for said axially movable device is mounted within the hollow shaft (1) or the hollow section of the shaft in a radially positive or non-positive manner.

Abstract: The gear-change is comprised of a casing (1-2) for securing to the structure of the vehicle, and in said casing a cam (5) is located, to which twin lineal slide blocks (8) and (16) are linked, the first of these is linked to the gear-change selection cable (10) and the second to the gear selection cable (14); the slide block (8) having a side protrusion that freely moves in a slanting aperture (6) of the cam (5), so that the traverse movement of the lever (4) and corresponding tilting toward one side and another of the cam (5), brings with it the longitudinal movement of the slide block (8) and with that the traction or compression of the cable (10), whereas the forward and backward tilting movement of the lever (4), that is hinged on an axis (11) with respect to the cam (5), produces the longitudinal movement of the slide block (16) and with that the traction or compression of the cable (14).

Abstract: A method for producing an assembled shaft, especially an assembled camshaft, whereby parts, especially cams, are placed on a shaft in predetermined axial and peripheral positions and joined by compression pressure in a friction-tight manner. The cams in the thrust direction have a lubrication groove which surrounds the inner bore thereof and which is essentially wedge-shaped with a linear or curved slope, running in the direction of the wall of the bore. When the cam is slid on the shaft into the predetermined axial position, a lubricant is introduced into the groove. This lubricant is pulled continuously groove into the inner bore of the cam during the push-on process to significantly reduce friction between the inner bore and the shaft.

Abstract: A tool for producing expanded camshafts. The tool includes at least one modular die made up of segments that are joined together and that are provided with opposing slides for centering and aligning the cams around the axis of the shafts.

Abstract: A valve lift mechanism, in particular for internal combustion engines of motor vehicles, has a driven cam element, a valve control member which can be driven (translational movement or pivot rotation) by the cam element, and a flexible enveloping element, wherein the cam element is rotationally mounted. The enveloping element may be formed of plates and joint pins, to form a link chain or a roller chain, for instance, and it is movably connected to the valve control member in the plane perpendicular to the axis of rotation of the cam element.

Abstract: The invention relates to a camshaft comprising a tubular shaft (1) and cams (2) which are radially disposed thereon. Said cams (2) respectively engage with the shaft in a perfect fit (1) and the free surface (1.1) of the shaft forms the base circle of the cams (2), whereby the cams (2) are respectively engaged in pocket-like recesses of the shaft (1).

Abstract: A variable valve actuation (VVA) mechanism includes a partial wrap output cam assembly and a partial wrap frame assembly. Each of the partial wrap cam assembly and the partial wrap frame assembly include a respective body and a respective shaft engaging means coupled to the body. The shaft-engaging means are configured for engaging an input shaft with a snap fit to thereby pivotally dispose the output cam assembly and the frame assembly upon the input shaft.

Abstract: A rotary cam assembly for a bending die includes first and second arms pivotally attached to an actuator. Linear movement of the actuator causes rotation of the rotary cam relative to a bending cam. A rotatable element is supported between the first and second arms and guides along a cam surface of a fail-safe element mounted on an upper die. In the absence of actuator movement, the fail-safe element cause rotation of the rotary cam from a released position to a bending position ensuring proper position of the rotary cam relative to a bending cam.

Abstract: System uses a method of securing a cam to a rotatable shaft in a discrete angular position with respect to the shaft. The device uses leaf springs along the inside diameter of the cam to lock individual sets of cam teeth to the shaft splines. Circumferential placement of the cam teeth sets of the cam permit no more than one set of cam teeth to be fully engaged with a shaft at any one time. This provides smaller and more numerous possible incremental angular positions of the cam with respect to the shaft while the remaining partially engaged sets of cam teeth provide a locking normal force to secure the cam and the fully engaged cam teeth set onto the shaft.

Abstract: A ratchet-like assembly for winding a counterbalancing mechanism of a door. The ratchet-like assembly includes at least one plate, at least one ridge, an actuator, and at least one pawling element. Each plate is operatively mounted onto a fixed structure and includes an orifice through which extends a shaft of the counterbalancing mechanism and about which the shaft is rotatable along opposite first and second directions of rotation. Each ridge is provided about an outer edge of the corresponding orifice. The actuator is operatively connected to each plate and is operable between a locked configuration and an unlocked configuration. Each pawling element is mounted onto the actuator and is positioned within a corresponding ridge, adjacent to the shaft.

Abstract: The invention relates to a snap-in locking device for a multistage rotary switch with a switch spindle that is connectable with a rotary knob. The switch spindle is connected with an axle part that is snapped into an inner receptacle of a built-in switch panel part. The axle part rests on the switch panel part and is lock-in adjustable between snap-in receptacles with cams that are each limited by two radially-aligned connector links. The snap-in receptacles cover the entire circumference of the inner receptacle of the switch panel part. The axle part can be set into rotary motion with the switch spindle by a rotary knob, which is attachable to the switch spindle, and that modifiable limit stops define the number of switch positions, then a snap-in locking device for a operating unit is created with simple and cost-effective production and assembly parts that is coupleable with other components of the operating unit and can be equipped with an over-rotation safeguard.

Abstract: The present application discloses a brake actuator for applying tension to a brake cable. The actuator includes: a mounting bracket; a brake actuator lever mounted for pivotal movement relative to the mounting bracket in brake applying and brake releasing directions; and a cam-and-drum member mounted for rotation relative to relative to the brake actuator lever. The cam-and-drum member is formed as one integral part including a protruding drum portion and a cam portion integral with the drum portion. The present application also discloses a brake actuator with a one-piece cam member.

Abstract: In a fuel injection pump, fuel pressurized by a feed pump is supplied to an accommodation chamber via a communication path having an orifice. An end of the communication chamber on a side of the accommodation chamber is positioned to face an axial end of a minute space between sliding contact portions of a cam and a bush when the cam is at a given angular position. The fuel fed from the feed pump is injected from the end of the communication path axially deep into the minute space between the sliding contact portions so that oil film for lubrication is formed on the sliding contact portions, resulting in suppressing frictional seizure of the sliding contact portions.

Abstract: A camshaft assembly and method of making a camshaft assembly is disclosed. Each of the cams includes a lobe boss portion that defines the cam lift profile, and a base portion that provides a surface for joining the cam to the shaft. In contrast to conventional ring-type cams, the base portion of the cam does not circumscribe the outer surface of the shaft, but instead extends only part way around the circumference or periphery of the shaft. This allows for radial mounting of the cams at virtually any timing angle, and permits the use of simple techniques for joining the cams to the shaft, including capacitance discharge welding. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A valve lift mechanism, in particular for internal combustion engines of motor vehicles, has a driven cam element, a valve control member which can be driven (translational movement or pivot rotation) by the cam element, and a flexible enveloping element, wherein the cam element is rotationally mounted The enveloping element is movably connected to the valve control member in the plane perpendicular to the axis of rotation of the cam element.

Abstract: A positioning mechanism includes a moving body which can be moved in accordance with a drive force supplied from a drive source, a stopper which defines a movement extremity of the moving body, and a biasing device which engages with the moving body when the moving body is moved to the vicinity of the movement extremity and which converts, after engagement, the force from the moving body into a force to bias the moving body toward the stopper.

Abstract: A cam mechanism for use in a mowing machine. The cam mechanism is comprised of a spur gear and protruding eccentric cams from the top and bottom surfaces of the spur gear. The cam mechanism is formed from a half blanking press process. The eccentric cams are symmetrically formed around a shaft hole located in the center of the spur gear. Members with a hole equaling that of the eccentric cam and shaft hole point symmetry are then fitted onto the eccentric cam. The members are then capable of reciprocation with a phase differential of 180 degrees of each other. The concave portion of the eccentric cam permits lubricants to be filled in the space facilitating the smooth operation of the cam mechanism.