Abstract: A mechanical backstop is provided which comprises a housing, an input impact gear, a frictional plate, a floating impact gear, and an output impact gear. The floating impact gear is movably mounted between the input impact gear and the output impact gear to achieve transmission. The frictional plate is fixed relative to the housing and disposed at a side of the floating impact gear close to the input impact gear. When the input impact gear transmits a torque to the floating impact gear, the floating impact gear floats toward the output impact gear to separate from the frictional plate and transmit the torque to the output impact gear. When the floating impact gear transmits a torque reversely, the floating impact gear floats toward the input impact gear to abut against the frictional plate and achieve reverse locking.

Abstract: An actuator system includes a motor and an actuator positioning member to be driven by the motor from a start position to an actuated position. The system also includes a harmonic drive assembly between the motor and the actuator positioning member arranged to transfer torque from the motor to the actuator positioning member at a gear ratio of greater than 1:1. The system further includes means for disconnecting the harmonic drive assembly in response to failure of the motor and/or torque transfer such as to allow the positioning member to return to the start position.

Abstract: The present invention comprising a miniature direct current reduction motor, a transmission screw rod, a motor support base, a push column, a support plate and a push column cap; the miniature direct current reduction motor is fixedly connected to the motor support base, the motor support base is fixedly connected to the support plate, and an output shaft of the miniature direct current reduction motor is fixedly connected to the transmission screw rod, the transmission screw rod is in threaded connection with the push column, and the push column cap is fixedly connected to the push column; the push column can only move up and down within the support plate under the constraint of the guide structure; when the push column moves upwards, the push column cap is pressed against the bottom of the separated rotor inserted into the stirring cup of the stator to raise the stirring cup.

Abstract: The reverse input cutoff clutch includes: a pressed member having a pressed surface around the inner peripheral surface; an input member coaxially arranged with the pressed surface and having an input-side engaging portion arranged on the radially inner side of the pressed surface; an output member coaxially arranged with the pressed surface and having an output-side engaging portion arranged further on the radially inner side than the input-side engaging portion; and an engaging element arranged so as to be movable in a first direction as a direction toward or away from the pressed surface on the radially inner side of the pressed surface. The engaging element has a main engaging element body having a pressing surface and a pivot-support shaft, and a link member. The link member has a first end portion pivotally linked to the pivot-support shaft, and a second end portion pivotally linked to the input-side engaging portion.

Abstract: A reverse-input blocking clutch includes: a pressed member having a pressed surface; an input member having an input-side engaging portion on an inner side in a radial direction of the pressed surface; an output member having an output-side engaging portion further on the inner side in the radial direction than the input-side engaging portion; an engaging element on the inner side in the radial direction of the pressed surface to move in a first direction away from or toward the pressed surface, having a main engaging element body having a pivot-support shaft, and a link member having a first end portion pivotally linked to the pivot-support shaft and a second end portion pivotally linked to the input-side engaging portion; and an elastic body between the main engaging element body and the link member and applying an elastic force to the link member toward the pressed surface in the first direction.

Abstract: A reverse input blocking clutch has: a pressed member having a pressed surface; an input member having an input-side engaging portion; an output member having an output-side engaging portion; and an engaging element having an engaging element main body and a link member to move in the first direction away from or toward the pressed surface. The engaging element main body has a pair of main body plates arranged to overlap in the axial direction, and a pivot support shaft arranged on the side in the first direction closer to the pressed surface than the input-side engaging portion with the both side portions supported by the pair of main body plates. One pressing surface facing the pressed surface is provided on one main body plate, and the other pressing surface is provided on the other main body plate.

Abstract: A backstop of a torque transmission device of an aircraft steering system includes input and output sections of a drive shaft. Torque is transmitted from the input to the output, but is prevented from being transferred from the output back into the input. The input is limited from rotating coaxially relative to the output by more than a predetermined angle. The input stops at a first rotary position relative to the output upon rotating in a first rotary direction. The input stops at a second rotary position upon rotating in the opposite direction. The output is blocked from rotating in the second direction while the input is at the first rotary position and is blocked from rotating in the first direction while the input is at the second rotary position. The output is blocked from rotating by dissipating any torque acting upon the output into the housing of the backstop.

Abstract: A roller assembly comprises a first axle having a first inner shaft and a second axle having a second inner shaft. The roller assembly may further comprise a plurality of roller elements between the first inner shaft and the second inner shaft. The roller assembly may further comprise a roller disposed between a first tension strap and a second tensions strap.

Abstract: To reduce abnormal noise production in a friction brake structure, the friction brake structure includes: a brake plate (20) fixed to a rotating shaft (15) of a rotary electric machine (1); a ring-shaped brake shoe (30) disposed facing the brake plate; and a brake shoe support plate (40) which engages with a fixing portion of the rotary electric machine so as to be movable in an axial direction, and which supports the brake shoe and is biased by biasing action so as to bring the brake shoe into sliding contact with the brake plate.

Abstract: A method of prognostic health monitoring is provided for use with an aircraft. The method includes generating torque for controlling positions of controllable surfaces at right- and left-hand-sides (RHS and LHS) of the aircraft in a power drive unit (PDU) based on torque-limiter (TL) thresholds, performing real-time monitoring of the torque at the RHS and LHS of the aircraft, generating RHS and LHS torque information from results of the performing of the real-time monitoring, analyzing the RHS and LHS torque information and controlling operations of the PDU based on results of the analysis by at least one of modifying, tuning and defining the TL thresholds.

Abstract: A rotary device assembly is provided and includes an input shaft coupled to a torque generating device, an output shaft and a rotary device disposed to transmit first torque from the input shaft to the output shaft and configured with no-back capability to prevent second torque applied to the output shaft from being transmitted to the input shaft in an event the second torque deceeds a torque-limiting threshold and the no-back capability and torsional lock-up capability to prevent an overload of the torque generating device in an event the second torque exceeds the torque-limiting threshold.

Abstract: An actuator arrangement comprises an epicyclic gear set 4a, 4b including a sun gear 7, at least one planet gear 9 in meshing engagement with the sun gear 7, and a ring gear 3 in meshing engagement with the planet gear 9, the planet gear 9 being carried by a rotatable support 5, wherein one of the sun gear 7 and the support 5 is arranged to be driven by a motor 2 and the other of the sun gear 7 and the support 5 is arranged to drive an actuator 18, and a clutch arrangement 6 operable to resist rotation of the ring gear 3.

Abstract: A torque limiter limits transmission of torque between an input shaft an output shaft. The torque limiter may be incorporated in a geared rotary actuator for actuating an aircraft control surface. The torque limiter is responsive to output torque associated with the output shaft instead of input torque associated with the input shaft. The torque limiter includes a structural ground and a gear assembly for transmitting rotational motion of the input shaft to the output shaft. The gear assembly includes a reference gear coupled to the structural ground such that movement of the reference gear relative to the structural ground is dependent upon an output torque at the output shaft. The reference gear is stationary relative to the structural ground when the output torque is below an output torque limit, and the reference gear moves relative the structural ground when the output torque exceeds the output torque limit.

Abstract: A device for the operation of an electrical load is arranged in and/or on a movable transparent panel element. A supply and/or signal line is arranged between at least one energy source and the electrical load. The supply and/or signal line is arranged on a lever assembly, and can be guided by the lever assembly.

Abstract: A gear pump includes a plurality of gear wheels rotatably retained in a pump housing and that engage in one another for the conveyance of a medium. One of the gear wheels is driven by a pump shaft, which can be coupled to a drive by means of a coupling end. To maintain a uniform conveyance flow, in particular with strongly fluctuating operational pressures, during alternating load states, within a single rotation, a brake ring is disposed on the circumference of the pump shaft, which acts with at least one brake surface on a friction surface of the pump shaft or on a friction surface of the pump housing.

Abstract: Seat actuators and methods for operating seat actuators are disclosed. A seat actuator comprises an actuator interface, a motor, and a brake. The actuator interface is adapted to be coupled to a corresponding seat interface. The motor is operable to provide a force to the actuator interface. The brake comprises a plurality of interlocking components. The brake is operable to prevent movement of the actuator interface by a mechanical interlocking of the plurality of interlocking components. A method for operating the seat actuator comprises operating a motor of the seat actuator to provide a force to an actuator interface, and operating a brake to prevent movement of the actuator interface by mechanically interlocking a plurality of interlocking components of the brake.

Abstract: A tensioning device for tensioning a flexible elongate member, such as a cord, comprises a first winding member which can rotate around an axle for, directly or indirectly, winding and unwinding the elongate member at a first end thereof, and a second winding member which can rotate around said axle for, directly or indirectly, winding and unwinding the elongate member at the second end thereof. The first and second winding members are interconnected by a tensioning member striving to cause a relative rotation between the first and second winding members for creating a prestress or tension in the elongate member. A restriction device is provided for limiting the maximum possible relative rotation between the first and second winding members.

Abstract: The invention relates to improvements in the object of patent P200603269 for “Automatic rotation system for tilting seats of chairs or armchairs”, comprising rotation supports formed by two parts (1 and 2) which are rotating in relation to one another, between which there is incorporated a rotating draw-spring (4), one of the parts (2) of each rotating support determining an annular channel (5), in which there is housed a ring (6) together with a high-viscosity silicone filler, such that said ring (6) is linked by pulling with the other part (1) of the rotating support, a braking action occurring on the rotation movement between the two parts (1 and 2) due to the friction of that ring (6) with the silicone in the channel (5).

Abstract: Disclosed is a cone brake no-back for use with an actuation system. The actuation system may be an aircraft actuation system, for example. The no-back may include cone brakes capable of preventing undesired displacement of an aircraft surface (such as a flap, a leading edge, or a trailing edge of a wing) in the event that an actuator input becomes disconnected or is otherwise insufficient to oppose the load created by the aircraft surface.

Abstract: A locking device of a rotary shaft includes a clutch member rotating integrally with the rotary shaft and provided so as to be displaceable in the direction of axis of the rotary shaft, a locking member provided in a fixed state to engage the clutch member to regulate the rotation of the clutch member, a biasing member biasing the clutch member toward the locking member, and a torque transmission member rotating under the rotary torque transmitted thereto from a power source, having a boss loosely inserted into a cam groove provided in an outer peripheral portion of the clutch member, and transmitting the rotary torque to the clutch member via the boss. The boss is displaced within the cam groove with switching of the rotation/stop of the torque transmission member or switching of the rotational direction thereof.

Abstract: Friction device includes at least two members, one of which is mobile, or potentially mobile, in terms of relative displacement with respect to the other under the action of an external stimulus. The relative displacement is liable to cause the relative displacement of two friction surfaces subjected to pressing forces, so as to convert the external stimulus into a friction force and to thus control the displacement of the mobile or potentially mobile member. The pressing forces are produced by pre-stressing mechanisms and the members are able to act on the effects of the pre-stressing mechanisms so as to use the resultant effect of the relative displacement of the mobile or potentially mobile member to reduce the pressing forces.

Abstract: A mechanical brake having an axial shifting mechanism arranged on an input drive shaft and an axial shifting mechanism arranged on an output drive shaft. The two axial shifting mechanisms are so embodied that their shifting directions are opposed and that, upon introduction of a torque via the input drive shaft and/or the output drive shaft, the axial shifting mechanism associated with the input drive shaft has precedence over the axial shifting mechanism associated with the output drive shaft.

Abstract: A feedback torque limiter device for an actuator having an input shaft, output shaft and gear reduction for transmitting torque from the input shaft to the output shaft comprises an output torque sensor, and input torque limiter and a feedback mechanism. The output torque sensor senses actuator output torque downstream from an actuator gear reduction. The input torque limiter grounds additional torque from the input shaft when engaged. The feedback mechanism engages the input torque limiter when the output torque sensed by the output torque sensor reaches a predetermined value.

Abstract: Disclosed is an automatic rotation system for tilting seats of chairs or armchairs, comprising a seat fastener having at least one holder formed by first and second parts rotatably coupled together; first and second conformations respectively attached to the first and second rotatably coupled seat fastener parts; and a spring incorporated between the first and second rotatably coupled seat fastener parts.

Abstract: The invention relates to a gear brake device for a multi-speed manual transmission (6), comprising a gear brake (14) assigned to an input gear shaft arrangement that can be controlled by a transmission control providing a synchronization function when upshifting the manual transmission (6). In order to expand the functions of the gear brake device, for example in order to shorten the after-run period of auxiliary devices connected to the manual transmission, besides the first gear brake (14), at least one additional auxiliary brake (16, 20) is provided, which acts on the input gear shaft arrangement or on a transmission element (power take-off shaft 18) that is drive-connected or can be drive-connected with it, where said auxiliary brake is operable by the transmission control independently of the first gear brake (14).

Abstract: A combined no-back and torque limiter device that automatically prevents back-drive and over-torque actuator conditions with a combination of two compression-type brakes that are selectively operated with a self-energised ball ramp set and torsional spring mechanism.

Abstract: A high efficiency drivetrain for an agricultural irrigation system is described. The drivetrain includes a ball ramp brake to inhibit movement of a wheel tower when the drive gear motor is not engaged. In one embodiment, the ball ramp brake is a bi-directional ball ramp brake disposed between the drive gear motor and the gearbox of the drivetrain. Utilizing a ball ramp brake such as this, the gearbox can incorporate much more highly efficient gearing mechanisms, such as for example only, involute gears, beveled gears, hypoid gears, planetary gears or the like. The ball ramp brake is enclosed and includes an oil bath that functions to lubricate the components of the brake, preventing corrosion and dissipating heat.

Abstract: According to the present invention, a one-way, bi-directional clutch, includes an outer casing, an input shaft, an output shaft and a brake assembly. The input shaft includes a release cam portion and the output shaft includes a locking cam portion. The brake assembly includes a release cam portion that is complementary to the release cam portion of the input shaft, a locking cam portion that is complementary to the locking cam portion of the output shaft, a biasing element and at least one brake pad. The complementary release cam portion of the input shaft and brake assembly are operable to move the brake assembly to a release position when the sufficient torque is applied to the input shaft. The complementary locking cam portions of the output shaft and the brake assembly are operable to move the one or more brake pads to the brake position when the sufficient torque applied to the output shaft.

Abstract: A clutch assembly 10 is provided for a motor having a shaft 36, a worm 40 associated with the shaft and an output gear 42 engaged by the worm. The clutch assembly includes a clutch body 12 having a plurality of pockets 22 in a surface thereof. Each pocket has a cam surface 24 defined by a depth of the pocket that gradually increases from a deep end to a shallow end. A ball bearing 18 is disposed in each of the pockets 22. Spring structure 16 maintains the ball bearings in the pockets. A pressure plate 14 is operatively associated with the clutch body and is constructed and arranged to be coupled with the shaft 36 of the motor. Under certain conditions, the ball bearings wedge between the pressure plate and surfaces defining the associated pocket, thereby preventing rotation of the shaft when coupled with the pressure.

Abstract: A skewed roller brake assembly (20) has a main axis of rotation (x—x), has a first plate (21) adapted to be rotated about the main axis, has a second plate (22) adapted to be rotated relative to the first plate about the main axis, and has an intermediate plate (23) positioned between the first and second plates. The first and second plates are adapted to be axially loaded with respect to one another. The intermediate plate has a plurality of slots (25). Each slot is bounded by a first wall (26) that is arranged at a first angle (&thgr;1) with respect to a radius from the main axis. A cylindrical roller (25) is arranged in each slot for rolling engagement with the first and second plates about the axis of the roller such that the roller axis (y—y) is parallel to the first wall when the first and second plates are rotated relative to one another in one angular direction.

Abstract: A lift lock for a blind is disclosed to include a casing holding a guide wheel, balls respectively received in respective sliding grooves around one side of the guide wheel, a shaft inserted through the casing and coupled to a lift rod of the blind, and a spring member sleeved onto the shaft for forcing an engagement portion of the shaft into engagement with a positioning opening of the casing. When the torque inputted into the lift rod surpassed the friction resistance between the casing and the shaft, the balls force the shaft to disengage the engagement portion from the positioning opening of the casing for enabling the lift rod to be freely rotated. When the input torque of the lift rod dropped, the spring member returns the shaft into engagement with the positioning opening of the casing to stop the lift rod in position.

Abstract: A stop clutch assembly comprises a shaft fixed for receiving a driving torque. A clutch disk is rotatably disposed about the shaft and is axially slidable thereon. A drive collar rotates the clutch disk through a clutch ball lodged in a biconical clutch cavity formed between the clutch disk and the drive collar. A power takeoff member is rotatably disposed about the shaft. The clutch disk positions a load connected to the power takeoff member through a drive ball lodged in a biconical drive cavity formed between the power take off member and the clutch disk. A ring gear having a friction collar attached thereto is rotatably disposed about the shaft. The clutch disk is engaged with the friction collar when the clutch disk is in a first position, and the clutch disk is disengaged from the friction collar when the clutch disk is in a second position.

Abstract: Remote control of a mechanical transmission, more particularly to the remote control of at least one gripping element by a monodirectional action, whereby the gripping element includes an articulation which can close by converging upon the object which is to be gripped and which can be locked in an active position upon contact with said object and the control device can be disengaged in the gripping position.

Abstract: A torque-limiting module (20) is adapted to be mounted on a body (21) at any of a plurality of locations. Each location has a particular mounting geometry that mandates the relative position and orientation of the module relative to the body. The body includes a housing (28) adapted to be mounted on the body, in input shaft (22), an output shaft (29), a coupling (30) between the shafts, a brake (31) arranged to act between the housing and output shaft for braking the shafts when the torque transmitted by the output shaft exceeds a predetermined value, a spring (84) urging the brake to move toward a position at which the output shaft will be released, a cam surface (25) mounted on the body at each of the locations, a cam follower (32) mounted on the module for movement along an axis and engageable with the cam surface at any location, and wherein the module has a variable characteristic, such as torque, that is settable as a function of the position of the cam follower relative to the module.

Abstract: An object of the present invention is to provide a clutch device capable of providing a simple structure, greatly reducing power-application cost and component cost, reducing weight and improving convenience.

Abstract: A torque limiting device for limiting torque applied to a shaft comprises an input shaft, an output shaft, and a clutch arrangement having input and output clutch elements coupled to the input and output shafts respectively. One of the clutch elements is axially moveable with respect to the other clutch element in response to a torque being applied to the output shaft which is in excess of a predetermined torque limit. An indicator arrangement is arranged to provide an indication that the torque applied to the output shaft exceeds the predetermined torque limit and to provide a further indication of the direction of rotation of the input shaft when the predetermined torque limit is exceeded.