Abstract: A spiral gear converts reciprocating motion into rotational motion or rotational motion into reciprocating motion. An interface travels along a spiral such that, as the interface is displaced in a first linear direction, the spiral is caused to rotate clockwise, and as the interface is displaced in a second, opposite linear direction, the spiral is cause to rotate in a counterclockwise direction.

Abstract: An actuator for a rotary function element, having a housing with at least one pressure means supply and being closed at both sides by a cover, in which housing a piston is guided to reciprocate in a sealing manner, the piston containing diametrically opposed, convolution-like connecting links for a transverse axis of an actuator shaft rotatably mounted in one cover, and having two guide rods firmly anchored in the housing only at one end and engaging into guides in the piston, with the one guide rod anchored in one cover, whereas the other guide rod is anchored in the other cover, and the two guides end blind in the piston in opposite directions.

Abstract: An ice pusher is provided. The ice pusher incorporates a cam and a linear actuation arrangement for removing ice from an evaporator plate of an ice-making machine. The cam provides a helix shaped ramp structure having a cam surface. The linear actuation arrangement has an input end and an output end. The input end is in slidable contact with the cam surface such that the linear actuation arrangement linearly moves relative to the housing upon rotation of the cam to effectuate the removal of ice from the evaporator plate.

Abstract: An apparatus for lowering and raising a pick arm is disclosed herein. An example of the apparatus includes a shuttle assembly having a first direction of movement and a second direction of movement, and a lift assembly rotatably coupled to the shuttle assembly. The apparatus additionally includes a cam coupled to the lift assembly to transform rotary motion of the lift assembly into substantially linear motion that allows the pick arm to lower as a result of movement of the shuttle assembly in the first direction and that raises the pick arm as a result of movement of the shuttle assembly in the second direction. Other components and attributes of the apparatus are also disclosed herein, as are additionally examples of the apparatus. A method of lowering and raising the pick arm is further disclosed herein.

Abstract: A rotary drum for a gear control device for a motor-vehicle gearbox is provided. The drum is rotatable about a rotation axis and includes two guide channels on a cylindrical lateral surface of the drum arranged to guide in a slidable manner at least one follower member. The rotary movement of the drum about the rotation axis is converted into translatory movement of said at least one follower member. A series of positioning notches are provided on the cylindrical lateral surface of the drum and spaced apart angularly along a circumference of the drum for snap-engagement by a stop member associated with the drum. The positioning notches are axially interposed between the two guide channels. Two rings of radial through-holes are provided on the cylindrical lateral surface of the drum, each axially interposed between the positioning notches and a respective guide channel.

Abstract: There is provided an lock releasing mechanism coupled to a locking mechanism via a cable and configured to be capable of releasing a locked state of the locking mechanism by electrically towing the cable, and an lock releasing mechanism can include a main switch configured to operate manually, a motor configured to be driven by a current passing operation via the main switch, a conversion gear mechanism configured to convert the direction of output of the motor, converting means configured to convert a rotating motion to a reciprocating linear motion, a slider to which the cable is coupled and configured to perform the reciprocating linear motion, and a limit switch configured to be able to pass a current to the motor by a parallel circuit different from a current passage circuit of the main switch. The limit switch is in a current blocking state when the slider is at a neutral position.

Abstract: The wear compensation device for a gear set comprises a support for attaching the device to an external element, a bearing intended to be mounted on a shaft comprising one of the wheels of the gear set, and an eccentric mounted on the bearing and able to move angularly with respect to the support. The support and the eccentric each delimit an axial opening having a radial dimension greater than the diameter of the bore of the bearing, the opening of the support being situated axially on the side of the opening of the eccentric with regard to the bearing.

Abstract: Disclosed herein is a device for simultaneously adjusting vertical height and horizontal deflection including a lower plate fixed to a floor, an upper plate, vertical height and horizontal deflection of which are adjusted, one or more variable posts connected to an upper end of the lower plate and a lower end of the upper plate, and a height adjustment unit, a lower end of which is fixedly disposed above the lower plate and an upper end of which is disposed at the lower end of the upper plate in a line contact fashion, the height adjustment unit adjusting vertical height and horizontal deflection of the upper plate at the line contact portion.

Abstract: An eccentric bearing for an electrohydraulic piston pump assembly of a vehicle brake system includes a shaft configured to be driven in rotation about its axis, a bearing ring eccentric relative to the shaft, and rolling bodies between the bearing ring and the shaft. The rolling bodies have different diameters corresponding to a varying width of a gap between the bearing ring and the shaft. When the shaft is driven in rotation, an eccentricity of the bearing ring circulates around the shaft at half of the rotational speed of the shaft and drives pump pistons, which bear against the bearing ring, to perform a reciprocating movement. A resiliently elastic, closed annular steel band surrounds the rolling bodies and loads the rolling bodies inwardly against a circumference of the shaft. The steel band ensures that the rolling bodies roll on the shaft when the shaft is driven in rotation.

Abstract: An eccentric bearing for an electrohydraulic piston-pump assembly of a vehicle brake system includes a shaft configured to be driven rotationally about its axis, a bearing ring eccentric relative to the shaft, and, in a gap between the bearing ring and shaft, rolling bodies with different diameters according to a differing width of the gap. When the shaft is rotationally driven, an eccentricity of the bearing ring circulates the shaft more slowly than the rotational speed of the shaft and drives a reciprocating movement of pump pistons which bear against the bearing ring. To ensure that the rolling bodies roll on and circulate the shaft, a radial elasticity loads the rolling bodies with prestress against the shaft and bearing ring. The prestress is caused by an undersize of the bearing ring or by an elastic ring on the shaft, on at least one rolling body or in the bearing ring.

Abstract: An actuator which is operable in response to one of an electrical and an electro-mechanical input signal is provided. The actuator includes an outer casing defined about a central axis, an output shaft disposed within the casing, the output shaft being axially moveable over a stroke length. Further, the actuator also includes a drive mechanism co-operable with the output shaft to drive the output shaft along a part of the stroke length, wherein the actuator is configured such that the output shaft is drivable along all or part of the remainder of the stroke length by external loading while being unconstrained by the drive mechanism.

Abstract: An information terminal apparatus includes a base plate fixed on the surface of a first housing, having a guide opening formed in the base plate and extended in a direction parallel to the surface of the base plate; and a swing plate including a shaft portion protruding perpendicularly to the surface of the swing plate and engaging with the guide opening, the swing plate being rotatable about the shaft portion with respect to the base plate. The information terminal apparatus further includes a cam mechanism having a cam groove provided on one of the swing plate and the base plate, and a cam pin provided on the other of the swing plate and the base plate, the cam pin engaging with the cam groove, the swing plate being rotatable while sliding in the direction with respect to the base plate when external force is applied to the swing plate.

Abstract: This invention concerns an aircraft cargo loader for lifting cargo and freight onto and off an aircraft or plane by the loader comprises a longitudinal deck platform; a supporting assembly extending under the platform for supporting and moving the deck platform between a raised position and a lowered position; and an adjusting mechanism installed in connection with a front transverse shaft of the supporting assembly for transversally tilting the platform between a first tilt angular position where one of the longitudinal side of the platform is tilted with respect to the other longitudinal side; a neutral angular position; and a second tilt position where the other longitudinal side of the platform is tilted with respect to said one longitudinal side. The loader also comprises an actuator to actuate the rotational movement of the front transverse shaft.

Abstract: A device for pressing a rack onto a pinion engaging the rack, more particularly for a steering system of a motor vehicle, comprises a pressure piece which is slidably guided in a housing and which is loaded in the direction of the rack, and an adjusting device. Devices made of metal are known from the prior art, which, however, generate excessive noise emissions during operation. Therefore, the pressure piece is made of plastic and the adjusting device is made of metal and/or plastic.

Abstract: A transfer device includes a plurality of primary transfer rollers, a second link member and a regulatory member. The regulatory member restrains the second link member from moving further than a predetermined position toward the second direction. The second link member causes the primary transfer rollers to be displaced as it moves. The second link member is split into a plurality of link arms of which overall length is variable within a predetermined range; and its joint portion includes an elastic member urging the plurality of link arms toward a direction to which the overall length gets longer in a state where the second link member is most separate from a cam shaft, and a first locking section and a second locking section engaging the plurality of link arms with one another for the overall length not to get longer beyond a maximum value.

Abstract: An actuator is provided for reconfiguring a reversibly expandable structure, also referred to as a deployable structure. The deployable structure includes an enclosed mechanical linkage capable of transformation between expanded and collapsed configurations while maintaining its shape. An actuator coupled to the deployable structure provides a load, force or torque for actuating a transformation. The actuated deployable structure transfers the actuation force to an external body substances, or element in contact with the deployable structure. The force can be directed inwardly or outwardly depending upon direction of the transformation (i.e., expanding or contracting). The force provided by the deployable structure can be used to perform work by its application over at least a portion of the distance traveled by a perimeter of the deployable structure during its transformation. In some embodiments, the actuatable deployable structure is lockable structure supporting a static load.

Abstract: A manoeuvrable platform comprising a planar base manoeuvrable by at least one cam operated lifting sub system positioned in relation to a back surface of the base, the or each lifting sub system comprising a cam blade arranged in a plane substantially parallel to that of the planar base section and operably connected to a cam drive in a casing, a first linear actuator operably connected to the cam drive casing and configured to provide linear displacement along a first axis, a second linear actuator operably connected to the cam drive casing and configured to provide linear displacement along a second axis and a pivoting means arranged for rotating the planar base.

Abstract: A unit for picking up and lowering a spare wheel on a vehicle. In one implementation the unit comprises a main shaft, a mechanism with a shaft of rotation for winding or releasing the cable, which is connected at one end to the main shaft, and at the other to the mechanism, a safety actuator that acts on the main shaft and is connected to the mechanism by a connection means. A drive means connects the mechanism and the connection means, and cooperates with the safety actuator, releasing it, in a combined rotation and displacement movement.

Abstract: The invention relates to a device for converting a rotational movement into a translational movement, said device comprising: a first element (303) that is rotated around a stationary center of rotation (401) by a rotation means (301); a second element (307) that is translated along a translation axis (311) by rotating the first element (303); a cam (305) that is rigidly connected to the first element (303), said cam (305) having a cam channel (306) in which a roller (308) moves, wherein said roller is rigidly connected to the second element (307). Said device is characterized in that the cam channel (306) has an inner surface (402) for contact with the roller (308), said roller (308) being in contact (500) with the inner contact surface (402) when the first element (303) is rotated in a first rotational direction (404), said inner contact surface (402) defining a curve of the type developing from a circle.

Abstract: An object of the invention is to provide a pump tappet capable of bearing a large load from a pump plunger even if a case, which is a constituent member of the pump tappet, has a reduced thickness in its intermediate bottom. The invention thus contributes to reduced weight of the overall pump tappet. The case for the pump tappet is formed from an intermediary workpiece 40, which is made by means of a cold forging process of pressing a central region of a round steel material from both surfaces thereby pushing a portion of the material in the central region radially outward, forcing the material to flow axially in an up-down direction, so that an intermediate bottom 40e has a continuous fiber flow.

Abstract: A device for precisely manipulating objects by means of multidimensional tooling movement cycles, comprising a revolving shaft assembly, a barrel shaped main cam connected in a slidable but rotationally locked manner with the revolving shaft assembly, a fixed main cam follower configured to engage the main cam such that the main cam performs a cyclic main translational movement in the direction of a shaft rotation axis, a plate shaped secondary cam rigidly connected to the main cam, a tooling holder having a main slide slidable in the direction of the shaft rotation axis and a secondary slide slidable with respect to the main slide in a transversal direction to the shaft rotation axis, wherein the main slide is connected to the main cam and a secondary cam follower is connected to the secondary slide.

Abstract: A rotary machine may have multiple stations that have a linear motion operated by a cam and a rotational motion operated by individual motors mounted on each station. Each station may perform a motion profile that is proportional to the machine's central axis rotation or, in some cases, independent of the central axis rotation. In some embodiments, each station may rotate to orient a part prior to processing. In one embodiment, the cam driven linear motion may enable a station to lower for loading and unloading, then raise for processing. The rotary machine may have various mechanisms at each station for processing a part. One such embodiment is a rotary machine that may be outfitted with compound dispensing mechanisms at each station.

Abstract: A picker assembly includes a plurality of pickers in selective variable spaced relation, a shaft having a plurality of cam plates, the cam plates co-axial with said shaft and having a variable thickness. The cam plates are in engagement with the pickers and positioned in interstitial spaces between the pickers. The selective variability in spacing is provided by rotation of the shaft such that thickness variation of the cam plates move the respective pickers along an axis parallel to the shaft.

Abstract: A hand-held power tool includes a motor-driven percussion mechanism. The percussion mechanism includes a guide tube (21) and a reciprocating driving member (22) displaceable in the guide tube (21) for driving, via a gas spring, an impact member (23) likewise displaceable in the guide tube (21). The percussion mechanism further includes a motor-driven eccentric wheel (17) rotatable about an axis (D) which is spaced from the percussion mechanism axis (S) in a direction perpendicular to the percussion mechanism axis (S) by a distance (X). A connection rod (29) is eccentrically supported on the eccentric wheel (17) and connected to the driving member (22) for converting a rotational movement of the eccentric wheel (17) into a reciprocating movement of the driving member (22).

Abstract: A positioning device for converting a rotary motion into a linear motion includes a drive unit configured to generate a torque, a drive shaft on which an eccentric is arranged, a coupling element comprising a slot, an output shaft arranged at the eccentric. The output shaft is configured to move in the slot of the coupling element. An adjusting element is connected with the coupling element. The adjusting element is supported so as to be linearly movable with the coupling element. The slot comprises a guide path configured to cooperate with the eccentric which comprises an angle with a plane perpendicular to a direction of movement of the adjusting element.

Abstract: The invention relates to a pivotal drive, in particular a round indexing table having a plate which can be driven by a motor to execute a rotary movement about an axis of rotation and having a bearing arrangement for the journaling of the plate in a housing of the pivotal drive, the bearing arrangement including at least one radial bearing and at least a first axial bearing and a second axial bearing. The radial bearing cooperates with a radial bearing surface formed by an outer peripheral surface of the plate. The first axial bearing cooperates with a first bearing surface of the plate and the second axial bearing cooperates with a second bearing surface of the plate and the bearing surfaces are arranged displaced parallel to one another with respect to the axis of rotation of the plate.

Abstract: A loading machine for feeding a receiver includes, but is not limited to, a drum cam that is configured to rotate. The drum cam includes, but is not limited to, a first cam path, and a second cam path. A rammer subassembly is positioned proximate the drum cam. The rammer subassembly includes, but is not limited to, a first member that is configured to engage the first cam path and to move longitudinally with respect to the drum cam upon a rotation of the drum cam, and a second member that is configured to telescopically engage the first member and further configured to engage the second cam path and telescopically move with respect to the first member upon the rotation of the drum cam.

Abstract: An actuator assembly having a housing, at least one rotating gear member including a cam, and an actuator device operably connected to the rotating gear member, operably contained in the housing, for rotating the gear member. Also included is a bearing member operably associated with the cam such that when the actuator device is actuated for rotation of the gear member, the bearing member moves on the cam for providing relative motion between the bearing member and the rotating gear member. The actuator device is selected from a torque generating device or a device having linear movement.

Abstract: A rotational motion-positioning apparatus capable of generating rotational movement about three orthogonal rotational axes. A first axial cam and second axial cam are supported by a rotational joint base. A rotational joint is attached between the rotational joint base and a work load support. The work load support has at least one first axial cam follower tracking the first axial cam rotation, thus rotating the work load support about the rotational joint first rotational axis. The work load support has at least one second axial cam follower tracking the second axial cam rotation, thus rotating the work load support about the rotational joint second rotational axis. The rotational joint base is supported by and rotatable about a housing, thus rotating the work load support about the third rotational axis. Three rotational drive unit are attached to the housing to rotate the first axial cam, second axial cam and rotational joint base.

Abstract: A cam follower slide component used in an apparatus for extrusion blow molding polyethylene teraphthalate is disclosed. The cam follower slide component is designed to include disc springs positioned about a spindle that is in turn located along the slide direction of the cam follower. With the inclusion of disc springs, the cam follower slide is capable of absorbing certain excessive forces within the blow mold clamping linkage system that may develop during irregular blow mold process conditions. In a preferred embodiment, the cam follower slide component includes the ability to adjust the spring force of the disc springs to allow for a variation in allowable excess system linkage forces.

Abstract: A position adjustment mechanism is provided to adjust a position of second member with respect to a first member. The position adjustment mechanism includes: a cam that is provided in the first member so that a cam surface of the cam abuts the second member; and a fixing portion that is provided in a forming area of the cam surface in the first member and fixes the second member to the first member by screw in a state where the position of the second member with respect to the first member is adjusted by the cam.

Abstract: A special path generating device includes a base, a first axis slide assembly, a second axis slide assembly, a working portion, a driving portion, a first cam and a second cam. This first axis slide assembly includes a first bar and a first slide. The second axis slide assembly includes a second bar and a second slide. This working portion is mounted on the second slide that has two contacting portions. The driving portion is mounted on the base. When the driving portion drives the driving shaft rotating, the first cam and the second cam rotate accordingly and makes the working portion generating a special path. It can generate a constant-speed circular movement. It is easy to control. In addition, its volume is small.

Abstract: A rotary drum for a gear control device for a motor-vehicle gearbox. The drum is rotatable about a rotation axis and includes two guide channels on a cylindrical lateral surface of the drum arranged to guide in slidable manner at least one follower member. The rotary movement of the drum about the rotation axis is converted into translatory movement of said at least one follower member. A series of positioning notches are provided on the cylindrical lateral surface of the drum and spaced apart angularly along a circumference of the drum for snap-engagement by a stop member associated with the drum. The positioning notches are axially interposed between the two guide channels.

Abstract: The invention concerns a device for operating gripping or movement tools provided at least with a movable member (16, 17) movable alternatively between a first and a second position distanced between them by a cursor (18) susceptible to controlled alter native linear movements starting from an electric actuator. The device comprises a transmission means (27) of the movement connected to the actuator, one towing slide (26) associated with the cursor (18) and susceptible to alternative movements caused by said actuator by means of said transmission means, and at least an elastic member (28) positioned preloaded between said towing slide (26) and said cursor (18) parallel both to their movement direction and to the movement direction of at least a mobile member.

Abstract: The invention relates to an industrial robot (1), having a multiple-axis robot arm (2), with a base (3), a carousel (4) that is rotatably supported relative to the base (3) in reference to an axis (A1) and a mechanical stop device provided to limit a rotary motion of the carousel (4) relative to the base (3). The stop device has a slider (11) situated on the base (3), with stops (17, 18) situated at its ends, a trailing stop (12) situated in the slider (11) and a drive dog (13) situated on the carousel (4). The drive dog (13) and the slider (11) are designed so that the drive dog (13) is introduced into the slider by a corresponding rotary motion of the carousel (4) relative to the axis and pushes the trailing stop (12) against the relative stop (17, 18). The trailing stop (12) includes a plastically deformable damping element (21), which is provided to brake the carousel (4) due to a plastic deformation caused by the trailing stop (12) being pushed against the relevant stop (17, 18) by the drive dog (13).

Abstract: A robotic crash protector device is configured for heavy payload applications. The device includes a housing, a piston and an actuator movably mounted within the housing, a cam member secured within the housing in fixed relation to the housing's base, and a switch. The cam member includes a cam surface with some portions being closer to the housing's base than other portions. The actuator includes bearing members that are configured to, responsive to a rotational force imparted to the actuator, move along the cam surface and thereby collectively displace the piston. The switch detects this displacement and indicates a crash. When moving along the cam surface, the bearing members are each configured to engage the surface along a line of contact, rather than at a single point. With forces imparted to each bearing member and the cam surface distributed across a line, the components better endure heavy payload applications.

Abstract: An adjusting mechanism for desired angle of an oscillating electric fan is disclosed. The adjusting knob is conveniently located about the top rear portion of the fan motor, adjacent the clutch knob. Adjusting the oscillating angle may be made when the fan is at rest, when it is running and oscillating at the same time, or when it is running at a fixed direction. Adjusting is fast and simple, only one hand is needed and no tools and mechanical know-how is necessary.

Abstract: A technique for deflecting an actuator belt includes applying a variable deflection force to the actuator belt. The technique may be used to construct actuators for active orthotics, robotics or other applications. Versions with passive clutches may also be used to construct variable-ratio motor gearheads, or may be scaled up to build continuously variable transmissions for automobiles, bicycles, or other vehicles.

Abstract: A four-wheel drive center disconnect electric actuator is provided. The actuator includes a one-way motor that actuates a cam mechanism for causing engagement and disengagement of the center disconnect. The actuator achieves improved reliability and efficiency through a less expensive construction than conventional actuators.

Abstract: Plural auxiliary rotating members abut at different positions in a circumferential direction of a roller-shaped rotating member that is configured to rotate in a forward direction and a reverse direction. Diameters of a portion of the roller-shaped rotating member where a first auxiliary rotating member abuts and a portion of the roller-shaped rotating member where a second auxiliary rotating member abuts are different from each other. Conveying speeds of sheets conveyed by the first auxiliary rotating member and the second auxiliary rotating member with the roller-shaped rotating member in different directions at the same time are different from each other.

Abstract: There is provided an lock releasing mechanism coupled to a locking mechanism via a cable and configured to be capable of releasing a locked state of the locking mechanism by electrically towing the cable, and an lock releasing mechanism can include a main switch configured to operate manually, a motor configured to be driven by a current passing operation via the main switch, a conversion gear mechanism configured to convert the direction of output of the motor, converting means configured to convert a rotating motion to a reciprocating linear motion, a slider to which the cable is coupled and configured to perform the reciprocating linear motion, and a limit switch configured to be able to pass a current to the motor by a parallel circuit different from a current passage circuit of the main switch. The limit switch is in a current blocking state when the slider is at a neutral position.

Abstract: A reciprocating drive apparatus has a driving device and a driven device, one of the devices comprising a reciprocating member mounted for movement along a longitudinal axis. At least one rotary member is coupled to one of the devices and a linear bearing assembly has a linear guide rail and a linear slide member with an end coupled to the other device. A connecting link has a first end pivotally connected to the rotary member and a second end pivotally linked to the slide member. Where the reciprocating member is the driven device, rotation of the rotary member will cause the reciprocating member to move back and forth along the longitudinal axis.

Abstract: A groove follower (70; 90) for cooperating with a shift groove (48) of a shift drum (44) of a multi-step transmission for a motor vehicle, the groove follower (70; 90) having a vertical crowning and a longitudinal crowning, and the shift groove (48) defining an active diameter along which the groove follower (70; 90) is to be guided in a state in which the groove follower (70; 90) engages into the shift groove (48), and the entirety of all the vertices (SHB) of the vertical crowning forming a guide curve (L) along the circumference of the groove follower, characterized in that the position of the vertices of the vertical crowning is selected such that the guide curve (L) corresponds essentially to the active diameter of the shift drum (44).(FIG.

Abstract: A wall panel system including a retractable floor anchor for converting a wall panel assembly between a sliding configuration and a pivoting configuration. The wall panel system includes a sliding wall panel assembly and a pivoting wall panel assembly that may be configured to slide or pivot. A retractable floor anchor configured to be included in the pivoting wall panel assembly includes retractable spindle that is coupled to a base member by a linear actuator. The spindle is rotatably coupled to a door closer included in the retractable floor anchor.

Abstract: The present invention is directed to an actuator assembly (10) having a housing (14), at least one rotating gear member (52) including a cam (66), and an actuator device (26) operably connected to the rotating gear member (52), operably contained in the housing (14), for rotating the gear member (52). The present invention also includes a bearing member (76) operably associated with the cam (66) such that when the actuator device (26) is actuated for rotation of the gear member (52), the bearing member (76) moves on the cam (66) for providing relative motion between the bearing member (76) and the rotating gear member (52). The actuator device (26) is selected from a torque generating device or a device having linear movement.

Abstract: A device for transporting parts (1) includes a transporting member (3) whereon the parts to be transported (2) are to be arranged. The transporting member (3) is mounted mobile relative to a frame (9) of the device for reciprocating movement, which occurs in a plane (P) in which the parts are transported. A driving device comprises at least a drive cam (4) co-operating with at least a roller that is displaced with the transporting member, so that the movement in the plane is a reciprocating translational movement generated by the rotation of the drive cam (4).

Abstract: A device for transmitting rotary motion. The device includes a motion-transmitting member for transforming an alternating rotary motion of a input drive shaft into a unidirected rotary motion of a driven body driven about a drive shaft. The motion-transmitting member includes an intermediate body rotatable about an axis of rotation. A mechanical energy accumulation member is mechanically connected to the driven body. The intermediate body includes a cam disk in the form of a driving pulley and the mechanical energy accumulation member includes a tensile/compressive spring unit.

Abstract: An apparatus for converting linear motion into rotary motion or vice versa comprising a shaft (12) which is rotatable about a fixed axis (14) and carrying a circular cam (16) mounted eccentrically relative to that axis (14), the cam (16) being rotatably mounted within a disc (22) which is in turn rotatably mounted within a housing (24) mounted for linear reciprocating motion along a rectilinear axis (26) in a direction transverse to the axis (14) of the shaft (12) whereby reciprocating motion of the housing (24) along the rectilinear axis (26) is converted into rotation of the shaft (12), or rotation of the shaft (12) is converted into reciprocating motion of the housing (24) along the rectilinear axis (26).

Abstract: A reciprocating-motion converting mechanism includes a cam that rotates around a rotation center; a reciprocating member that is reciprocated due to rotation of the cam; and a pressing unit that presses the reciprocating member to the cam. A first load torque is generated by a load applied at a point of contact of the cam and the reciprocating motion member. A load applying unit applies a load to the cam to generate a second load torque having a phase substantially opposite to a phase of the first load torque.

Abstract: A special path generating device includes a base, a first axis slide assembly, a second axis slide assembly, a working portion, a driving portion, a first cam and a second cam. This first axis slide assembly includes a first bar and a first slide. The second axis slide assembly includes a second bar and a second slide. This working portion is mounted on the second slide that has two contacting portions. The driving portion is mounted on the base. When the driving portion drives the driving shaft rotating, the first cam and the second cam rotate accordingly and makes the working portion generating a special path. It can generate a constant-speed circular movement. It is easy to control. In addition, its volume is small.