Abstract: A mounting structure for a cam-type torque damper is provided to ease the assembling thereof, improve the maintenance properties thereof and prevent the variation in thrust direction restricting position due to loosening or the like. A collar is spline connected to an axial end of a crankshaft, and a primary gear, a lifter, a spring and a spring holder are fitted on the collar in that order. A cotter is fitted in a groove in the collar so as to restrict the spring holder with respect to the thrust direction position to thereby assemble the cam-type torque damper into a small assembly. The cam-type torque damper so made to be a small assembly is then fastened to the axial end of the crankshaft with a bolt. A concave cam is formed in a side of the primary gear, and a convex cam provided in an axial end portion of the lifter is brought into mesh engagement with the concave cam.

Abstract: A mounting structure for a cam-type torque damper is provided to ease the assembling thereof, improve the maintenance properties thereof and prevent the variation in thrust direction restricting position due to loosening or the like. A collar is spline connected to an axial end of a crankshaft, and a primary gear, a lifter, a spring and a spring holder are fitted on the collar in that order. A cotter is fitted in a groove in the collar so as to restrict the spring holder with respect to the thrust direction position to thereby assemble the cam-type torque damper into a small assembly. The cam-type torque damper so made to be a small assembly is then fastened to the axial end of the crankshaft with a bolt. A concave cam is formed in a side of the primary gear, and a convex cam provided in an axial end portion of the lifter is brought into mesh engagement with the concave cam.

Abstract: A right angle indexer includes an internal torque limiter. The indexer includes an input shaft with a cam, and an output shaft. The cam on the input shaft rotates a hub on the output shaft. The hub is rotatable relative to the output shaft. The output shaft has a driven surface, and the hub has a drive surface. The drive surface includes a plurality of detents which are irregularly spaced about the drive surface. A plurality of rollers are spaced irregularly about the driven surface. The driven plate is biased into contact with the drive plate, and the rollers are received in the drive plate detents. As long as the rollers are engaged in the drive plate detents, rotation of the hub by the cam will cause the driven plate, and hence the output shaft, to rotate. However, if a predetermined torque load is exceeded, the driven plate will become disengaged from the drive plate, and continued rotation of the hub will not cause rotation of the driven plate or the output shaft.

Abstract: A parallel indexer having a housing, an input shaft rotatably mounted in said housing, an output shaft rotatably mounted in said housing and extending exteriorly thereof, said input shaft and output shaft being arranged parallel to each other, said output shaft having a driven surface which mounts the plurality of roller gear drives thereon, and which are driven by at least one cam mounted upon the input shaft, said driven surface being normally fixed to the output shaft, and having a torque limiter arranged intermediate thereof and which when excessive torque is encountered, provides for disengagement between the driven surface and the output shaft, to disconnect the output for the parallel indexer.

Abstract: A steering device for moving and directing a miniature vehicle provided with at least one leading wheel, the steering device has a control member arranged outside the miniature vehicle to be remote-manipulated by the user, a transmission for transmitting inside the miniature vehicle any movement produced on the control member, and a support component for deflecting each leading wheel controlled by the transmission. The steering device has converting members for gearing down any primary movement actuating the transmission into a secondary movement for deflecting each leading wheel. The steering device is applicable to toys, in particular miniature vehicles remote-controlled by a control member with dimensions and positioning corresponding to the child's morphology.

Abstract: A coupling mechanism (1) has a threaded body (12) adapted to establish a threaded coupling when rotated, a housing (2) being rotatable by the application of torque thereto, a thrust member (6) coupling the threaded body (12) and the housing (2) for rotation together until a torque limit is attained, and the thrust member (6) decoupling from the threaded body (12) by displacement of the thrust member (6) against frictional resistance of peaked ridges (16) and a bias by a resilient spring (5).

Abstract: A vandal-resistant torque sensitive release mechanism is disclosed for coupling and decoupling an actuating handle to a lock mechanism. The torque sensitive release mechanism is disclosed is in the form of a slip-clutch, with the rotational movement of the slip clutch being limited when excessive force is applied to prevent the actuating handle from moving to a position where it would interfere with the subsequent desired opening of the door.

Abstract: A release valve for a lifting device includes a valve stem, a fixing seat, a spiral spring, and a knob. The valve stem includes a first conical end mounted in an oil path of the lifting device, a mediate portion, and a second end beyond the lifting device. The valve stem further includes a threaded section in threading engagement with the lifting device. The fixing seat is mounted around the mediate portion of the valve stem and is beyond the lifting device. The fixing seat includes a boss formed on a first side thereof, a central through hole extending through the fixing seat and the boss. The boss includes a longitudinal slit defined in a periphery thereof. The spiral spring is mounted around the boss of the fixing seat. The spiral spring has an inner end which is securely received in the longitudinal slit of the boss and an outer end. The knob is securely mounted around the second end of the valve stem to rotate therewith.

Abstract: A steering valve (1) for supplying an actuator with hydraulic pressure, consists of an input shaft (2), an output shaft (3), a torque rod (4), connected at one end to the input shaft (2) and at the other end to the output shaft (3), and a valve sleeve (5) surrounding the input shaft (2). A torsionally resistant, axially elastic element (9) is contained within the steering valve (1), connected at one end to the input shaft (2) and at the other end to a catch device (10). The catch device (10) ensures no relative displacement between the valve sleeve (5) and the input shaft (2); prior to a predetermined degree of torque, and converts the torque acting upon the input shaft (2) to axial forces acting upon the elastic element (9) until a release position is reached. The elastic element (9) is mounted on the input shaft (2) by means of a bearing sleeve (11), which is fixed in an axial position on the input shaft (2).

Abstract: A transmission having ratios from 0:1 to 1:1 is disclosed; the transmission comprises a plurality of clutches for producing a partial rotational output from a reciprocating input, an output gear for collecting the partial output of the clutches, an input gear for providing rotational input to a varicrank (i.e. an index plate/web shaft slidably and rotably disposed in a rotatable cylindrical block), and a varicrank (i.e. an index plate/web shaft slidably and rotatably disposed in a rotatable cylindrical block) for producing reciprocal motion on the clutches. The varicrank has a variably offset center web member having a plurality of connecting rods secured thereto corresponding to the number of clutches and a plurality of crank arms pivotally secured to the connecting rods.

Abstract: An integrated drive system for driving one or more elongate flexible members of a displacement apparatus used in a media handling system. The integrated drive system includes an integral housing and a plurality of shafts fixedly secured to the integral housing. A first linkage device is mounted on one of the shafts and includes a capstan, which may be adapted to receive and retain one or more elongate flexible members, and a first gear integrally formed therewith. A second linkage device is mounted on another shaft and includes a second gear which engages the first gear, and a third gear integrally formed therewith. A motor assembly may also be provided which includes a motor operatively connected to a fourth gear which engages the third gear, a motor shaft, and an overload clutch assembly which prevents the fourth gear from being rotatingly driven with the motor shaft at predetermined intervals. Methods for assembling an integrated drive system and a motor assembly are also disclosed.

Abstract: The preferably for use in an accumulator driven electric drill or electric screwdriver provided gear comprises an overload coupling for limiting torque for the adaptation to various torque loads. The overload coupling is comprised essentially of an annular gear which is formed of a plastic material and which circumscribes and is associated with a planetary gearing, which has an internal teeth which are in engagement with the planetary gear. A spring element presses against the annular gear, in order to press the annular gear axially against a detente wall, so that the annular gear is frictionally prevented from rotation, until a predetermined torque loading is exceeded and upon exceeding of the predetermined torque loading the annular gear is allowed to rotate. For this there is provided between the plastic annular gear and the spring element a metallic cam disk, which is non-rotatingly secured to the annular gear.

Abstract: A detent assembly and control lever assembly in which the tactile resistance to movement at the detent, and in the overall movement of the control arm, are concurrently increased or decreased. The apparatus, in one embodiment, includes a control lever arm assembly, a variable resistance detent assembly, and a control lever friction assembly whose movement is linked to that of the detent assembly.

Abstract: An electric toothbrush includes a handle section having a motor drive and a drive shaft coupled to the motor drive by a translating device, and a brush section having bristle assembly and a transmission shaft unit coupled to the drive shaft and driven by it to turn the bristle assembly back and forth alternatively, the transmission shaft unit consisting of a driving member, a connecting member, a driven member, and a compression spring, wherein the transmission shaft unit disengages from the drive shaft upon an overpressure to prevent damage to the bristles.

Abstract: An apparatus and method is provided to release a propeller from the driving engagement of a propeller shaft when the propeller hits an object with sufficient force to otherwise cause damage to the marine drive. A clutch with first and second clutch members disengagably drives the propeller with a plurality of clutch teeth on one of the clutch members and a corresponding plurality of clutch sockets on the other. The clutch teeth and clutch sockets engage to provide a nonslip direct drive from the propeller shaft to the propeller and disengage to allow the propeller shaft to rotate free of the propeller when the propeller strikes an object. The clutch members are biased together such that the clutch teeth engage the clutch sockets during normal boating operation. The torque required to disengage the clutch may be adjustable by an adjustable retaining nut, or by using a spring of different compression rate, or by changing the characteristics of the clutch teeth or clutch sockets.

Abstract: A torque limiting clutch which transmits gradually increasing torque up to a prescribed limit at which limit the clutch disengages from its load. An embodiment designed for light service use in dentistry encloses all the working parts in a housing through which torque is applied to the load, and is autoclavable, This embodiment can be attached to known dental handpieces for assembling components of dental restorations with prescribed limited torque.

Abstract: An overload clutch limits the transmittable torque moment by permitting an override when a certain compression force is exceeded. For this purpose a drive shaft meshes with a disk provided with a number of holes in which balls are received. The disk has an axial thickness smaller than the diameter of the balls so that the balls can be uniformly exposed to a compression force exerted by a compression spring through a disk or bushing bearing on the balls. The balls cooperate with an entraining cam disk. As long as the torque to be transmitted is smaller than the compression force, the balls engage cam ribs on the entraining disk and transmit the torque. When the input torque exceeds the compression force, the balls override the cam ribs.

Abstract: A simplified wheel-lift mechanism is disclosed. The components of the wheel-lift mechanism are all formed of a plastic material that is corrosion resistant. Further, the wheel-lift mechanism includes a one-piece flexible coupling which reduces the complexity of the system over prior art systems. The one-piece flexible coupling includes a plurality of integrally molded discs connected by a plurality of circumferentially-spaced integrally molded posts. This results in a strong coupling which allows relative angular motion between the ends of the coupling. In a further feature of this invention, a locking key is operable to lock the wheel hub at a particular location. The locking key is selectively released to allow the wheel to be lowered. A unique drive mechanism is also included.

Abstract: A wheel-lift mechanism is disclosed which incorporates a unique torque limiting structure. A drive is transmitted to a first shaft, which is in turn transmitted to a second shaft. The second shaft drives a reel for raising and lowering a flexible lift member and an attached wheel hub from beneath a vehicle. The torque limiting structure consists of an outer drive member which has an inner periphery including a plurality of ears which are received within notches in an inner driven member. The first shaft rotates the outer drive member and the inner driven member in turn rotates the second shaft. Should the relative torque transmitted from the first shaft to the second shaft exceed a predetermined limit, the ears deform the notch radially inwardly and the outer drive member slips relative to the inner driven member. Nodes are positioned radially outwardly of the notches on each circumferential side. A space is formed radially inwardly of the notch in the inner driven member.

Abstract: A replaceable xerographic cassette is coupled to a rotatable driving shaft in a copying machine by a rotary drive coupling member in which a splined drive shaft of the cassette engages as the latter is inserted into the machine. To accommodate angular misalignment of the shafts, the coupling member is of two-part form and two parts can rotate relative to one another as the shaft is being inserted, to take up any misalignment that may exist.

Abstract: A power transmission mechanism for a motorized hand tool, comprising a socket, a first spring set in said socket, a first rotary member inserted in said socket and stopped against said first spring, a revolving shaft inserted through said first rotary member, said first spring and said socket and connected to a power unit, a second rotary member inserted in said first rotary member, a cap attached to said first rotary member at an opposite end, and a second spring retained between said second rotary member and said cap, wherein said gap and said first rotary member are forced to move backwards toward said socket, when the resisting force which acts onto said tool surpasses the driving force from said revolving shaft, causing said second rotary member to disconnect from said first rotary member and said revolving shaft.

Abstract: A mechanical drive box (8) comprising at least a shaft (1; 3) and at least a drive member (10) on the shaft and for the transmission of the motion between the shaft and the drive member, a device for the transmission of motion comprising: a set of pawls (26) radially movable within seats (16) formed in the shaft (1), said pawls having internal and external ends (26A) shaped in radial and/or axial direction; inside said drive member, a housing (20) wherein a drive member is received having a shaped surface for cooperating with the external ends of said pawls; inside the shaft, an axial cavity (14) for housing a shaped core (30) axially movable for the operation, with elastic means (36) for reacting to the axial movement of said core; and on said core, shapings and inclined surfaces (40, 42) able to cooperate with the internal shaped ends of the pawls; the axial position of said core and/or the force of the elastic means acting on the core determine the radial position of said pawls and/or their resistance agai

Abstract: A pair of torque transmission units deliver torque to first and second cooling chambers that produce the partially frozen beverages. A first torque transmission unit is directly coupled to a geared motor. The first unit includes a stand with three upright members that rotatably support first and second axially aligned shafts. The first shaft is connected to the output of the geared motor. Axially separable sections of a coupler are attached to opposing ends of the shafts. The first shaft is rotatably mounted in a first upright member; the second shaft is rotatably mounted in second and third upright members. A drive wheel is attached to the first shaft. An output wheel is attached to the second shaft. The second torque transmission unit includes a stand having four uprights which rotatably support first and second axially aligned shafts. An input wheel is mounted on the first shaft.

Abstract: A power driven rotary tool includes a housing and an electric motor mounted within the housing. A transmission shaft is rotatably supported by the housing, and a drive gear is idly supported by the transmission shaft and is operatively connected to the electric motor. A clutch is provided being engageable with the drive gear, and is rotatably and axially movably supported by the transmission shaft. A slider is axially movably fitted on the transmission shaft, and a spring is operatively connected to the slider for urging the clutch toward the drive gear. A manually-rotatable selector ring is provided and is attached to the housing. The slector ring includes a cam face curved along the peripheral edge thereof and having a plurality of steps formed in a direction axially of the transmission shaft so as to displace the slider by stages in the axial direction for adjusting the amount of compression of the spring.

Abstract: An assembly for protecting a circuit breaker drawout mechanism from damage which may be caused if excessive torque is applied to operate the mechanism. The invention relates to drawout circuit breakers of the type utilizing a worm gear assembly (34, 36) to operate a driven shaft (12) to move the circuit breaker into and out of an electrical compartment. A two-part driver shaft assembly (38) is used which includes a head (50) and a driver shaft (62). The head has a collar portion (52) which includes a ridge (54) and the driver shaft is provided with a channel (68) adapted to receive the ridge. A shoulder screw (60) connects the head to the driver shaft while a coil spring (66) encircling the screw biases the head against the driver shaft, retaining the ridge within the channel unless an excessive amount of torque is applied to the head causing the ridge to slip from the channel and preventing additional torque from being imparted to the worm.

Abstract: A children's automobile-mounted safety seat (1) has a seat portion (2), a safety guard (6), left-hand and right-hand support rods (b 9, 10), and left-hand and right-hand connecting rods (15, 16) built onto the safety guard (6) and removably attached to the left-hand and right-hand rear portions (18, 19) of the seat portion (2). The left-hand and right-hand support rods (9, 10) are journalled at their upper ends to the left-hand and right-hand lateral surfaces of the safety guard (6) and at their lower ends to the left-hand and right-hand lateral surfaces (11, 12) of the bottom of the seat portion (2). The left-hand and right-hand connecting members (15, 16) are built into the safety guard (6) so that they are longitudinally slidable within a predetermined range. The children's automobile-mounted safety seat (1) further has left-hand and right-hand springs to urge the left-hand and right-hand connecting members (15, 16) of the safety guard (6) to move toward each other.

Abstract: An overload release clutch includes a bearing for receiving the load of a drive flange on a cylindrical boss. The bearing has a first row of ball bearings disposed between an upper edge of the boss and a first curved flange and a second row of ball bearings disposed between a lower edge of the boss and a second curved flange. The curved flanges are formed on the inner most portion of the drive flange, the first one facing the upper edge and the second one facing the lower edge.

Abstract: The invention relates to a screwing head, notably intended for installing caps on containers of bottle of similar type. This screwing head comprises an upper bush (8) fixed to the hub (1) and connected by elastic means to a lower bush (2) mounted to slide on the hub (1), these elastic means (5) being designed on the one hand to apply sufficient pressure to engage the bush (2) onto a friction disc (4) fixed to a bottom unit (3) provided with a screwing head and on the other hand to apply a preset torsional torque which, by working in conjunction with cam means, enables the bush (2) to be released from the friction disc (4) when the cap comes to the end of the tightening operation.

Abstract: An actuator device is disclosed for opening a sliding door comprises a casing or box in which a driven shaft is rotatably carried, wherewith are in rigid rotatory relationship a pinion gear meshing with a rack mounted on the sliding door and a helical gear wheel meshing with a worm screw keyed to a driveshaft driven by an electric motor housed in the casing and including a rotor carried on the driveshaft and arranged between a pair of plates one whereof is rigid with the driveshaft and the other whereof is rotatively coupled to but axially movable with respect to the driveshaft by means of a torque limiter.

Abstract: A coupling for use in a transmission system and between rotary members which are arranged for driving engagement through axially engaging teeth thereon, the teeth being shaped to tend to disengage when normally driving in one direction, one of said members having two components connected by helical splines, the components being prevented from moving axially to disengage the teeth by a fusible element which will melt when temperature rises above a predetermined value, melting of said element permitting movement of the components axially to disengage the teeth and the helical splines permitting axial relative movement between the two components, when reverse rotation is taking place, to permit ratcheting of the teeth.

Abstract: A ski binding part with a sole holder for ski boots, which can be automatically adjusted to provide the proper hold-down force for different height ski boot soles or ski boot heels by a torque limiting coupling and a bolt which, when the ski binding is mounted on the ski, stands substantially perpendicular with respect to the upper side of the ski.

Abstract: A controlled-torque apparatus having a first cylindrical member and a second cylindrical member held together by means of a ball bearing positioned in a hole in the sidewall of the second cylindrical member cooperating with a bearing race on the interior sidewall of the first cylindrical member, thus longitudinally securing while allowing relative rotation. The torque control is provided by a spring which exerts vertical pressure on ball bearings extending through apertures in the base of the second cylindrical member into part-spherical recesses in the base of the first cylindrical member.

Abstract: In a motor operated hand-held tool, such as a hammer drill, a drive train transmits driving force from a motor to a drive spindle. The drive train includes a safety clutch positioned on a shaft for interrupting the transmission of driving force if a torque overload occurs. The safety clutch has a hub encircled by a gear ring with spring-biased balls releasably interengaging the hub and ring for transmitting the driving force. The hub is engaged with a thread on the shaft and under normal operation a spring prevents the hub from being rotated relative to the shaft and being displaced axially along the shaft. During torque overload conditions the hub acting against the spring moves axially along the shaft until the hub and gear ring are released.