Abstract: A vehicle wiper device moves a wiper back and forth between a bottom reversing position and a top reversing position. A drive source rotates an output shaft back and forth about a first axis within a rotational angle range of less than 360°. A link mechanism includes a wiper joint coupled to the wiper. The link mechanism rotates the wiper joint back and forth around a second axis within a rotational angle range that is smaller than the rotational angle range of the output shaft. The link mechanism is configured so that torque of the wiper joint is greater when the wiper is at the bottom reversing position than when the wiper is at the top reversing position.

Abstract: The present invention is a continuous medical instrument adapter that safely provides a 180-degree torque force during a surgical procedure while accommodating the range of motion of the surgeon's hand during the surgical procedure. The drive mechanism of said adapter is capable of non-lubricated function, enabling it to be used in a medical environment and to be sterilized without loss of function.

Abstract: The present invention discloses a bidirectional mechanical converting unit, comprising: a main shaft; a driving mechanism, which including a driving means and a reversing means which are coupled to each other; and a rotation means for inputting torque, an rotation axis of the rotation means being coaxial with the main shaft, the rotation means and the driving mechanism being coupled to each other, and the driving mechanism delivering the torque to output at the main shall at a predetermined direction, no matter in which direction the rotation means rotates; wherein the predetermined direction can be switched via the reversing means. The present invention is simple structured, not only can efficiently utilizes the movements of the rotation means in either way, but also can switch the rotation direction of the output shaft conveniently upon demand, with easy operations.

Abstract: An actuator includes a first rotary motor, a second rotary motor, and a transmission coupled to the first and second rotary motors. The transmission converts rotation of the first rotary motor in a first direction and simultaneous rotation of the second rotary motor in a second direction to linear motion of an output shaft in a single direction. The actuator is usable in an active automobile suspension.

Abstract: A modulator for supporting arms of a rear bicycle carrier comprises a support frame including a central post having two ends with which first and second supporting arms are connected; a ratchet holder integrally formed with or separately disposed on the connecting position of the central post, and including a plurality of inner teeth arranged around the internal periphery thereof; a connecting shaft inserted through the ratchet holder, on the two sides of an intermediate seat of the connecting shaft being mounted two ratchet members for engaging with the inner teeth of the ratchet holder; a control unit fixed on a predetermined position of the rear bicycle carrier for being rotated clockwise or counterclockwise to disengage at least one ratchet member from the inner teeth of the ratchet holder such that the first and second supporting arms can be adjusted toward a suitable angle relative to the central post.

Abstract: A ratchet apparatus includes a first member, a rack, and a second member that is selectively movable in first and second directions with respect to the first member. A first pawl is mounted with respect to the first member and is biased into engagement with the rack. The first pawl and the rack are configured such that engagement of the first pawl with the rack prevents movement of the first pawl relative to the rack in the first direction. A second pawl is mounted with respect to the second member for movement therewith in the first and second directions. The second pawl is biased into engagement with the rack. The second pawl and said rack are configured such that engagement of the second pawl with the rack prevents movement of the second pawl relative to the rack in the first direction.

Abstract: A wiper with rise-up mechanism includes a crank and a rod that is rotatably connected to the crank through a shift mechanism. The crank supports an eccentric rotor. The rod is coupled to the eccentric rotor to rotate about the axis of the eccentric rotor. A key is supported in the eccentric rotor to move axially. The key can be moved by the rotation of the crank. When the crank rotates in a normal direction, the key locks the eccentric rotor to the rod. When the crank rotates in the reverse direction, the key fixes the eccentric rotor to the crank. Only one key is used, which reduces the number of parts and simplifies the operation of the key.

Abstract: A handle component (1) of an electric toothbrush protrudes from the end of a hollow shaft (3), which holds a drive shaft (9) coaxially therein. A brush attachment (4) with rotatable bristle tufts (6) is disposed in the hollow shaft (3) in such a way that the drive shaft (9) is coupled with a shaft (7) in the brush attachment (4), wherein said shaft (7) drives the bristle tufts (6). The hollow shaft (3) is driven by a motor to oscillate around its longitudinal axis and/or to slide back and forth in the direction of its longitudinal axis. (FIG.

Abstract: A windshield wiper system incorporates a depressed park mechanism that stores a wiper blade in a depressed, park position. Actuation of the motor in one direction moves the blade out of its park position and into an operative position where it reciprocates through a predetermined wipe pattern. De-actuation of the wipe system then repositions the blade in its depressed park position by simply reversing rotation of the motor and altering the effective length of the drive link assembly.

Abstract: A hand-held power driven toothbrush carries a pair of exposed brush elements and self-contained driving means effective to directly drive one of said brush elements in oscillation, with linkage between the brush elements such that the second brush element is also oscillated, the two brush elements preferably being oscillated in opposite directions.

Abstract: An apparatus for changing the wiping range of a wiper enables the wiping range to be changed easily but without involving the risk of unwanted changes. The motor caused movement of the drive link is converted into a movement of the drive link for causing a reciprocating oscillation of wiper arms by first and second links which are each swingably supported, the second link being swingable realtive to the first link in such a manner that the stop position of the wiper arms can be varied. An auxiliary link provided on the first link is swingable while following the relative swinging of the second link and being integrated therewith, with the swinging radius of the auxiliary link being smaller than the relative swinging radius of the second link.

Abstract: Herein disclosed is a retractable wiper device which comprises: a first crank connected for forward and backward rotations to the reduction output shaft of a motor; and a second crank rotatably supported on the first crank such that it is kept in association at a predetermined bent angle with the first crank, while the first crank is being rotated forward, and in general association with the first crank while the first crank is being rotated backward. When in the forward rotation of the first crank, a stopper is always pushed to keep its engagement with the first crank thereby maintaining the aforementioned predetermined bent angle by two overlapped cams which are associated with each other at a predetermined play angle.

Abstract: An electric toothbrush comprises two main casings, a battery/motor casing and a brush drive casing, both casings being made of plastics material and one casing telescopically fitting over the other. The casing contains a battery, a motor and a motor shaft which carries the first gear of a reduction gear set which also comprises gears which drive a motor gear output shaft carrying a male coupling. The brush drive casing carries a brush head further reduction gearing and a brush drive shaft which carries a female coupling. When the couplings are mated telescopically, the male and female couplings connect so as to complete the drive to the toothbrush head. Preferably the toothbrush head is arranged to be driven in alternate directions, i.e., so as to have a reciprocal motion.

Abstract: In the bicycle disclosed herein, the axle of a driving wheel is journaled in a yoke at one end of an elongate frame and a steerable wheel is mounted at the other end of the frame. A rocking column is pivotally mounted on the frame for rotation around an axis which is concentric with the driving wheel axle, a backed seat being mounted on the other end of the column. The high speed element of a concentric speed transforming mechanism is connected to the axle and the low speed element is connected to the rocking column.

Abstract: An automobile wiper device has a pair of wiper arms movable between full-concealed position and semi-concealed position. The wiper arm reciprocates between the lower and upper turning positions, by the rotating force transmitted from the driving motor through the driving mechanism. The driving mechanism includes a driving lever secured together with the wiper arm to the rotary shaft fixed on the vehicle body, a switching lever coupled to the crank arm of the driving motor through a link shaft, and a turn-over spring secured between the switching lever and the driving lever. When the wiper resting position is jammed with snow, said switching lever acts to shift the lower turning position of the wiper arm from the full-concealed position to the semi-concealed position upon the rotating force being transmitted from the driving motor exceeds the bias force of the turn-over spring.

Abstract: A windshield wiper drive mechanism includes a crank driven by a motor shaft and having, towards the end of the crank remote from the motor shaft, a crank pin carrying an eccentric crank head piece on which a crosshead is pivoted. The head piece carries a latch which includes a latch finger movable under the action of a resilient member and arranged to leave the crank head piece free to move with respect to the crank when the latter is rotating in a first direction, but to prevent such relative rotation when the crank is rotating in the opposite direction. The latch finger includes a radial latch arm extending outwardly, while the crosshead has a recess for receiving the latch arm. The crank head piece has an opening for receiving the free end of the latch finger. The latch arm is so positioned, and is of such thickness, that, when the latch finger is engaged in the opening in the crank, the latch arm lies between the face to face surfaces of the crosshead and of the crank.

Abstract: The driving mechanism for a wiper of a motor vehicle includes a reversible drive shaft, a two part crank whose one part is secured to the drive shaft and whose other part is linked to the wiper to oscillate the same when the drive shaft rotates in one direction. To displace the wiper into rest position outside its wiping field when the wiping operation is switched off, there is provided a control plate rotatable about the drive shaft and supporting a swing lever provided with a lock pawl. The drive shaft passes through a cylindrical support fixed to the frame of the motor vehicle and being provided on its jacket with an indentation for receiving the lock pawl.

Abstract: A contact lens washing apparatus includes a body, a container mounted detachably on the body for receiving a washing liquid therein, and a porous basket mounted rotatably in the container for retaining a contact lens therein. A small motor in the body has a shaft which is connected to a speed reduction transmission. A rotational direction change mechanism interconnects with the speed reduction transmission and the basket for changing the unidirectional rotation output of the speed reduction transmission into the rotational reciprocating motion of the basket. That is, the basket will reciprocate alternately clockwise and counterclockwise to rinse the contact lens.

Abstract: An automatic contact lens cleaner, generally shaped in an inverted U, comprises a battery holder, an electric motor, a speed reduction gear, an intermittent reversing gear using levers which engage a boss on the drive gear, and a pair of contact lens holders suspended from the reversing gear into a dish containing cleaning fluid. The bottom of the dish (one end of the U) is level with the bottom of the motor/battery-holder housing (the other end of the U), allowing the cleaner to rest upon any convenient supporting surface.

Abstract: This invention provides the provision of a motor, whose output shaft is fixed to a pinion gear, meshed with two mutually opposed driven pinion gears, each carrying a respective cam roller, which alternatively enter and exit a cam surface on a cam follower, which is fixed to a second shaft, to oscillate said follower and said second shaft, and a first sector gear which is fixed to said second shaft and meshed with a second gear, which is axially fixed to the rocking lever in the drive linkage of a machine gun. Alternatively, the first sector gear is meshed with a second sector gear formed on the rocking lever.

Abstract: A retractable type wiper apparatus including a first crank connected to an output shaft of a reducer of a wiper motor and a second crank rotatably secured to the first crank by use of a first pivot shaft and so arranged that the second crank is maintained in a bent orientation at a predetermined angle relative to the first crank during the rotation of the first crank in the forward direction. The second crank is extended substantially straight relative to the first crank during the rotation of the first crank in the reverse directions. A stop member is provided on the first crank for defining a first locking recess and a second locking recess. A detent is longitudinally slidably mounted on the second crank. A spring means urges the detent selectively into the first and second locking recesses to thereby lock the second crank in place when the second crank is positioned at the predetermined angled position and at the straight extended position, respectively, relative to the first crank.

Abstract: An automotive vehicle includes a body with an engine compartment. Its power train includes: an engine with a crank shaft and at least one cylinder, mounted within the engine compartment with the crank shaft extending transversely to the longitudinal direction of the vehicle body and with the cylinder extending generally horizontally; a transmission device with a power input shaft, coupled to the engine with the power input shaft substantially coaxial with and rotationally driven from the engine crank shaft; and a differential device, driven from the transmission device, with an axial center line which is located generally below the center line of the crank shaft. Thereby, the engine compartment arrangement can be made compact and low in height, and further the moments of inertia of the vehicle about its yaw and pitch axes can be kept low.

Abstract: A retractable wiper apparatus is disclosed in which two cam members are mounted about a drive shaft, the cam members serving to retain a detent in a locked position during rotation of the drive shaft in the forward direction and during the wiping operation. Upon reversal of the drive shaft rotational movement, the detent is released by the cam members and the wiper is placed in a retracted position.

Abstract: A drive mechanism for transmitting bidirectional drive to two or more rotary actuator spindles, having a disc driven by an input shaft. Each spindle carries a spur gear which engages alternately with inner and outer tooth sections formed at different positions around a respective track in the disc. To accommodate several gears, tracks are provided at two different radii and three tracks of different width are nested together. The spur gears and tooth sections can be replaced by cams and tracks or shaped levers and pegs. The disc can be moulded and enables standard valves to be used in a complex operational sequence.

Abstract: In a windshield wiper drive system of the type having a reciprocating drive link and a reversible electric motor, a variable throw crank arm assembly between the drive link and the motor drive shaft including a first arm rigidly attached to the drive shaft, a second arm pivotally attached to the first arm and to an end of the drive link, a guide follower on the second arm, and a guide channel on the motor housing receiving the guide follower. The guide channel has a circular portion centered on the drive shaft axis and a noncircular escape portion radially outboard of the circular portion and merging therewith at a junction. When the drive shaft rotates continuously in one direction, the guide follower traverses the circular portion and holds the second arm in a short-throw folded position relative to the first arm.

Abstract: A windscreen wiper device comprises a drive crank 6 mounted fast on a drive shaft 7 of a drive motor, a connecting rod 5 pivotally mounted on said drive crank by means of a crank pin means, and a windscreen wiper blade support arm 2 connected to said connecting rod 5 so that rotation of said drive crank 6 by said drive motor rotating in a first direction sweeps said support arm 2 through a predetermined arc.

Abstract: A stepping gear includes an output member attached to a wheel which is provided with a number of rollers on both faces thereof. In driving contact with these rollers is a pair of cam members having contours which allow for driving in the forward direction as well as a standstill or dwell phase. In addition, reverse movement of the wheel is made possible by providing an undercut in one of the cams coupled with a superelevation on the other of the two cams. Form locking engagement between the cams and the rollers is maintained during the forward driving phase, and the standstill and return phases as well.

Abstract: A wiper device equipped with a rise up mechanism, including a motor, a blade, a wiper pivot, a motor arm which rotates in one direction during the starting and wiping operations of the blade and which rotates in a reverse direction during the parking and stopping operations of the blade, a connecting rod reciprocating in response to the rotation of the motor arm to swing the wiper pivot, a retainer for retaining the connecting rod, an eccentric member for rotating together with or relative to the retainer, a friction spring disposed between the eccentric member and the retainer for permitting the rotation of the eccentric member relative to the retainer only just after the starting of the blade or just before the parking and stopping of the blade, and a cam mechanism for rotating the eccentric member together with the retainer during all operations except the operation during which the eccentric member rotates relative to the retainer just after the starting of the blade or just before the parking and stoppin

Abstract: There is disclosed herein a mechanical motion control mechanism which in one form may comprise an input shaft drivingly connected to an output shaft in such a manner that continuous rotation of the input shaft produces varying rotational movement of the output shaft characterized by an initial dwell period, an acceleration period, a constant velocity period, a deceleration period and another dwell period. The input and output shafts may be drivingly connected by means of a gear secured to the input shaft which is in meshing engagement with a second gear supported at one end of a pivot arm, the other end of which is secured to the output shaft. Rotational and revolving movement of this second gear is controlled by the interaction of a plurality of cam followers engaging a cam surface so as to allow rotational, revolving, and various desired combinations of such movements in response to rotational movement of the first gear.

Abstract: A rocker wheel jack is arranged on a compact frame so that the driving mechanism is placed below the rocker wheel. The mechanism is adjustable so as to vary the spacing between it and a drive wheel. The rocker wheel is adjustably spaced from the drive wheel. A pitman connects the drive wheel and the rocker wheel. The pitman connections to the wheels are further adjustable radially to the wheels. Thus a jack is provided with a possibility of multiplicity of adjustments and a minimum of vertical space and of weight for the jack. The complete unit is readily movable. The driving mechanism is readily accessible for repair or replacement. An oil level sensor is provided in the well with connections transmitting its output to the R.P.M. of the jack.

Abstract: A stepless speed change gear for bicycles and the like. A device is disclosed wherein a rotary input is converted to reciprocating motion by a rack and pinion, the rack is mounted at the end of a lever which is oscillated; an arm is mounted on the lever, connecting it to a rod which is driven in alternating rotary directions; the rod is connected to the output shaft by two ratchets driven in alternate directions by said rod, said ratches are geared to said output shaft in such a way that the output is a continuous rotary motion. The speed change mechanism being that said arm is slidably mounted on said lever and rod so that the nearer the arm is drawn to the end of the lever on which said rack is mounted the greater is the oscillating motion imparted and the greater is the subsequent angle through which the rod is rotated.

Abstract: A parallel indexing cam structure has a locking cam and a pair of further cams which are rigidly secured to an input shaft at predetermined angular positions relative to each other, and a cam follower device is rigidly secured to an output shaft parallel to the input shaft and has a plurality of spider plates and three sets of cam follower rollers. During the dwell period, the locking cam is contacted by two rollers of one set of the cam follower rollers while the further cams are contacted by only one of the rollers of the respective remaining sets. The locking cam has a larger profile circle at the dwell position during the dwell period than the further cams, thereby blocking the rotation of the output shaft with increased accuracy and stiffness during the dwell period.

Abstract: A windshield wiper drive mechanism having a hypocycloidal input and an oscillating crank output. A multiple component linkage is disposed between the input and output to convert the linear motion from the input to oscillating motion for the output. The linkage includes one member having a gear segment portion thereon, another member having an abutment surface thereon and a lost motion connection between the members. A parking mechanism including a gear rack and a stop member is operable, during parking of the wipers, to engage the gear segment and the abutment surface respectively thereby enforcing relative rotation between the members, as permitted by the lost motion connection, so that the output is oscillated through an extended arc to facilitate depressed parking of the wipers.

Abstract: A shuttleless loom including a pair of lance bands operative to insert weft threads through a shed of warp threads is constructed with a driving crankshaft which operates to synchronously drive both the lance bands and the reciprocating sley of the loom. A sector gear is mounted upon the sley for reciprocal pivotal movement whereby the lance bands are driven through a gear train meshing with the sector gear. The sector gear is driven through a connecting rod mounted eccentrically upon a drive wheel which is driven by the crankshaft. Because of the eccentric mounting of the connecting rod upon the crankshaft, the reciprocating pivotal motion of the sector gear imparts increased acceleration to the lance bands midway through their travel and a decreased acceleration at the ends of the lance band stroke.

Abstract: A drive mechanism for windshield wipers in which a rotary input is converted to an oscillating output through a linkage mechanism. The linkage has a drive link which is connected through a control link and cam member to an output link. The cam member maintains one relative position between the control link and the output link during normal wiping and enforces relative angular movement therebetween to another relative position whereby parking of the wipers is accommodated.

Abstract: A windshield wiper mechanism in which a depressed park control linkage is disposed between the transmission drive link and the wiper drive shaft. The park control linkage is controlled by a solenoid and pin which maintains one angular relation between the linkage members during wiper operation and permits movement of the linkage, by the force on the transmission drive link, to another angular relation for parking the wipers out of the operator's vision. The park linkage is a unit separate from the power mechanism, i.e., electric motor and gear reduction, and the transmission links, so that different park angles can be accommodated for different vehicles by merely changing the park linkage while the remaining structure of the mechanism is unchanged.

Abstract: An interior and outer wiper of car can be used to scrape the rain water or fog either inside or outside a car. This wiper is designed to clear the driver's sight to prevent from occurring traffic accident. Either the interior or the outer wiper can be used. Both the interior and outer wiper can be used at the same time. They may be operated synchronously by means of a cam.

Abstract: An orbital rotary piston-type internal combustion engine in which a series of pistons are mounted for co-operation on a pair of rotors which are carried on a drive shaft and travel in an annular combustion chamber, with associated pre-combustion chambers which are charged with rich fuel-air mixture while the annular combustion chamber is charged with a relatively lean fuel-air mixture, the mixture in the pre-combustion chambers being ignited by primary spark plugs and the expanding gas being forced through ports into the annular combustion chamber where secondary spark plugs adjacent the ports assist in more complete combustion and help force the pistons past exhaust ports, and with a variable ratio, overriding clutch-bearing for transmitting power from the rotors to the drive shaft, a solid state ignition system, a pressurized fuel injection system, a drive shaft mounted timing system and an electromagnetic controlled starting device, the disengagement of the latter being effected by means of an engine veloc

Abstract: A method of converting non-harmonic acceleration of linear reciprocal motion into generally sinusoidal acceleration. In this method, non-harmonic acceleration of the linear reciprocal motion of a driving means is transformed into complementary rotary motion, and the complementary rotary motion is translated into generally sinusoidal accelerations by conjointly moving an articulated means and drivingly interconnecting it with a linear reciprocating driven means.Apparatus for converting non-harmonic acceleration for linear reciprocal motion into generally sinusoidal acceleration is also disclosed.

Abstract: The present invention relates to a washing machine and more particularly to a portable, peripheral oscillating agitation dual purpose washing machine. It is capable of cleaning out dirt materials from fabrics and dinner wares. It comprises a cylindrical enclosure including roller means as a base for portability, an inner cylinder acting as a washing chamber or tub where materials to be washed are deposited, an agitator peripherally disposed inside the tub which oscillates by means of a linkage connected to a worm and wormgear means powered preferably by an electric motor installed underneath. As the agitator rotatively oscillates the water and soap solution is propelled towards the center at a certain speed and direction opposite that of the materials to be washed thereby achieving a very efficient washing process.

Abstract: An actuating mechanism for imparting oscillatory motion to an output shaft journalled for pivotal movement about a fixed pivot axis. The actuating mechanism is adapted to be driven by a reversible motor means and comprises a power shaft carrying a drive worm, a worm gear in mesh with the drive worm and coupled to a drive shaft, and an articulated crank and link means coupling the drive shaft to the output shaft for translating rotation of the drive shaft into oscillation of the output shaft through an arc of predetermined angular size.The drive shaft is journalled in a slide means. A guide means supports the slide means for shiftable movement in a direction parallel to the longitudinal axis of the power shaft between first and second positions, the slide means being shiftable from one position to the other upon the direction of rotation of the motor being reversed.