Abstract: A reference position in a power steering system is defined by acquiring a first edge position corresponding to a first edge of a first index pulse generated when a movable steering member passes an indexed position in a first movement direction; acquiring a second edge position corresponding to a second edge of a second index pulse generated when the movable steering member passes the same indexed position in a second movement position opposite the first movement direction; and calculating the reference position from the first edge position and the second edge position.

Abstract: Vehicles and vehicle systems for restricting rotation of vehicle steering systems are disclosed herein. In one embodiment, a vehicle including a front wheel, a steering column assembly coupled to the front wheel, a steering wheel coupled to the steering column assembly, a steering rack assembly that includes a rack coupled to the front wheel, where the rack extends in a vehicle lateral direction and is translatable with respect to a body of the vehicle in the vehicle lateral direction, and a resistance device including a damper coupled to at least one of the steering rack assembly and the steering column assembly that limits a rotation of the steering column assembly.

Abstract: A system for calibrating a backup assist system for a trailer attached to a vehicle is provided which includes a hitch sensor continuously measuring a hitch angle for determining an angle rate, a yaw sensor continuously sensing a yaw rate of the vehicle, and a controller configured to determine an offset of the measured hitch angle when vehicle is driving forward and/or rearward.

Abstract: Provided is a steering reaction force control apparatus for a vehicle including a driving support device configured to control an electric power steering device via a controller so that a steered angle of steered wheels reaches a target steered angle. When the driving support device is operating, the controller calculates a target steering attenuation torque based on a steering angular velocity that is a time derivative of the steering angle or a time derivative of a corrected steering angle acquired by correcting the steered angle with a target steered angle of the driving support device. When the magnitude of the steering angular velocity is less than a reference value, the target steering attenuation torque is calculated so that the magnitude of the target steering attenuation torque becomes smaller when the driving support device is operating compared with when the driving support device is not operating.

Abstract: A vehicle controller includes a follow travel instructor conducting a lead vehicle follow control by auto-steering for a following of an own vehicle to follow a lead vehicle, an other vehicle information obtainer obtaining transmitted information transmitted from the lead vehicle, the transmitted information including information regarding a front situation of the lead vehicle, and an across-boundary move determiner determining whether the lead vehicle may cross a traffic lane boundary to an opposite traffic lane, based on the front situation information of the lead vehicle obtained by the other vehicle information obtainer. The follow travel instructor stops conducting the lead vehicle follow control based on a determination by the across-boundary move determiner that the lead vehicle may cross the traffic lane boundary. In such manner, an occupant of the own vehicle is prevented from becoming frightened by the auto-steering.

Abstract: Provided are a driving assistance apparatus and a steering control method thereof, which are capable of reducing impact on a steering wheel. The driving assistance apparatus includes a steering sensor that measures a steering manipulation signal based on a driver's manipulation of a steering wheel during control of a parking assistance device; and a control unit that, when the steering manipulation signal measured by the steering sensor is received, stops the control of the parking assistance device, changes a control torque value, which corresponds to a required steering angle when the control of the parking assistance device is stopped, to a target torque value based on the driver's manipulation of the steering wheel, wherein a torque variation is changed at a preset slope or for a preset time.

Abstract: A vehicle body may include a crossmember and a longitudinal member. The vehicle body helps ensure improved load absorption in collision events with small overlap between the crossmember and another vehicle or object. The deformation capabilities of the vehicle body in collision events involving a full surface area of the crossmember are not substantially impaired. Form-fitting members that comprise connection partners may be provided for the longitudinal member, wherein the form-fitting members ensure that a load path of collision energy is introduced into the longitudinal member selectively in the event of a collision with small overlap. A form-fitting member may form a form-fitting connection in a direction of the longitudinal member in the event of a collision.

Abstract: A chassis for a vehicular trailer, comprising a generally flat wheel engaging segment, said wheel engaging rotatably attached to a pair of collinearly disposed wheels; a hitch engaging segment connected to a trailer hitch and a linking segment, said linking segment disposed between and connecting the wheel engaging segment and the hitch engaging segment and comprising a change in height adapted to cause the hitch engaging segment to be offset from the wheel engaging segment relative to a support surface.

Abstract: A mud flap system for a tractor is described. The mud flap system includes brackets that clamp or secure to a frame of the tractor. Lateral extensions engage to the brackets to support covers over a top surface of rear wheels of the tractor.

Abstract: A flooring system for a vehicle having a corrugated floor comprises a plurality of flooring panels supported at their undersides by two or more registration members having locating members and other features for aligning the flooring panels vertically, laterally, and longitudinally. The flooring panels each have at least one longitudinally aligned load-bearing structure, such as in integrated track or a universal channel configured to receive a flanged track, filler material, or both. The registration members may have depending support members configured to engage in the valleys of the corrugated vehicle floor.

Abstract: A mounting device for a sub-frame may include a mounting bracket positioned to correspond with a one side penetration opening formed at a front side inside member of the front side member, a reinforce panel provided to an upper surface of the front side inside member, a mounting bolt separated with a bolt part and a head by a flange which is positioned at a center thereof, joined to a circumference of a bolt opening of the mounting bracket through the flange on a state that the bolt part is inserted into the bolt opening of the mounting bracket, and joined on a state that the head is wedged through the penetration opening of the front side inside member to the welding opening of the reinforce panel, and a foam filler foamed by a heat treatment and filled in a space formed by the front side inside member, the mounting bracket, the reinforce panel, and a front side outside member.

Abstract: A truck bed extension system for increasing a height of a truck bed includes a vehicle that has a bed. A plurality of wall units is provided and each of the wall units is removably coupled to the bed. Each of the wall units is vertically oriented on the top edge such that each of the wall units increases a depth of the bed. In this way the bed may carry an object that would otherwise be too tall.

Abstract: A system for reducing drag on a vehicle body moving through fluid includes a sensor mounted on the vehicle body for measuring data adjacent to the vehicle body surface, an eddy disrupter element mounted on the vehicle body for motion to a transverse position relative to the plane of the vehicle body surface and a processor for facilitating a comparative analysis of the measured data with a threshold condition to determine if the threshold condition is satisfied, wherein the threshold condition is associated with drag resulting from the vehicle body movement through the fluid that can be reduced by the motion of the eddy disrupter element to a transverse position relative to the plane of the vehicle body surface and wherein the element is responsive to satisfaction of the threshold condition.

Abstract: A drag reducing device for a vehicle includes an air flow turning component having a curved surface adapted to turn air flow passing over the curved surface, a first mounting component for connecting the air flow turning component to a rear door of the vehicle, and a second mounting component for connecting the air flow turning component to one of the opposite side walls of the vehicle. The mounting components are configured so that the air flow component is automatically in a deployed position when the rear door is closed, in which position the air flow turning component turns air flow passing along the side the vehicle inward to thereby reduce drag. The mounting components are further configured so that the air flow component is automatically stowed between the rear door and the vehicle side wall when the door is fully opened. The air turning component is an extrusion sized for a minimal prominence in the stowed position.

Abstract: A collapsible vehicle roof fairing includes a channel bracket attachable to a roof of the vehicle, a lower fairing connected to the channel bracket, and an upper fairing removably connected to the lower fairing, the upper fairing selectively moveable between an operating position and a collapsed position. A front decking bracket is attached to the upper fairing, the front decking bracket connectable to the channel bracket when the upper fairing is arranged in the collapsed position, and detached from the channel bracket when the upper fairing is arranged in the operating position.

Abstract: An apparatus is configured such that the outer shape of a shape memory material is transformed or changed to be enlarged or decreased in conjunction with vehicle speed and at that time a deflector 30 is actuated to move up and down to actively improve aerodynamic performance of a vehicle.

Abstract: A method for lateral dynamic stabilization of a single-track motor vehicle while negotiating a curve,—in which the presence of an unstable driving state in the vehicle lateral direction is detected and—as a function thereof, for the stabilization of the motor vehicle, at least one nozzle is activated, through which a medium is emitted perpendicularly to the wheel plane of a vehicle wheel.

Abstract: A stackable vehicle is provided and includes a deck, pairs of controllable support elements at each of a first pair of opposed minor surfaces of the deck and comprising a first leg affixed to the deck and transversely telescopic relative to a corresponding minor surface plane, a second leg coupled to a distal end of the first leg and telescopic in parallel with the corresponding minor surface plane and a pivotable and rotatable wheel disposed at a distal end of the second leg and pairs of controllable support elements at each of a second pair of opposed minor surfaces of the deck and comprising a first leg affixed to the deck, a second leg coupled to a distal end of the first leg and telescopic in parallel with a corresponding minor surface plane and a pivotable and rotatable wheel disposed at a distal end of the second leg.

Abstract: An agricultural vehicle having a full-track design with a vehicle structure on each side of which, relative to a vehicle longitudinal axis, a track roller unit is arranged. The track roller unit has roller unit body to which a front deflector roll, a rear deflector roller and a plurality of yoke-type track rollers arranged therebetween are coupled, and an endlessly closed track belt that wraps around the rollers/roller. All the rollers are suspended with respect to the roller unit body in that assigned to a roller or a group of rollers in each case is a spring element, which is acted upon by fluid, for the suspension thereof with respect to the roller unit body.

Abstract: A telescopic shaft includes a hollow outer shaft, an inner shaft spline-fitted to the outer shaft, a resin coating provided on splines on at least one of the outer and inner shafts, and can be extended and contracted in an axial direction. A method for manufacturing the telescopic shaft includes press-fitting the inner shaft into the outer shaft and sliding one of the outer and inner shafts relative to the other of the outer and inner shafts by reciprocating the one shaft in the axial direction. In the sliding, a frequency according to a sliding speed at which the one shaft is slid relative to the other shaft is set to be lower than a predetermined value at the start of sliding, and the frequency is increased in a continuous or stepwise manner when a sliding load of the one shaft to the other shaft is reduced.

Abstract: A bicycle assembly comprises a saddle adjustment assembly, the saddle adjustment assembly comprising an adjustable height saddle post, the adjustable height saddle post comprising first and second slidably coupled supports; a saddle post locking mechanism that selectively restricts sliding of the second support relative to the first support; and a saddle angle adjustment mechanism configured to couple to a bicycle saddle to enable rotation of the bicycle saddle between a first predetermined position and a second predetermined position, wherein, when the saddle post locking mechanism is in an unlocked configuration, the saddle angle adjustment mechanism enables rotation of the bicycle saddle between the first and second predetermined positions, and wherein, when the saddle post locking mechanism is in a locked configuration, the saddle angle adjustment mechanism maintains the bicycle saddle in one of the first and second predetermined positions.

Abstract: In a windshield device for a saddle-ride type vehicle equipped with a windshield portion provided adjustably in height, the windshield portion is attached through a rail member 41, the rail member 41 is equipped with an upper elongate hole 48b, a lever member 42 covering the upper elongate hole 48b and a lock pin 46 fixed to a body side are equipped, the rail member 41 is provided slidably relative to the lock pin 46 inserted through the upper elongate hole 48b, and the lever member 42 is equipped with a plurality of holes 68 with which the lock pin 46 is engageable.

Abstract: A motorized, fore-aft self-balancing transportation device that may include a single wheel structure with a drive motor, a battery and first and second foot platforms located on opposite sides of the wheel. The device may be uniquely be arranged such that the motor and battery are positioned such that there is space within the wheel envelope for a portion of the foot platform (positioned near or within the envelope), thereby placing the weight of the rider low and close to the center of gravity of the device. Various battery and motor arrangements are disclosed, as are different drive mechanisms and component redundancy to assure safe operation in the event of failure.

Abstract: A three wheeled scooter comprises a chassis having forward and aft ends with a front wheel non-pivotally mounted to the forward end and a pair of rear wheels coaxially mounted to the aft end. The chassis defines a longitudinal axis and includes a support assembly and a handle assembly extending upwardly from the support assembly. The rear wheels are configured to be angularly yawable relative to the longitudinal axis between a neutral position and a yawed position. Steering of the scooter is thereby effectuated by angular yawing of the rear wheels relative to the longitudinal axis such as by asymmetric loading of one of opposing sides of the support assembly.

Abstract: A convertible running bike capable of selectively converting from a non-motorized configuration to a motorized configuration may include a front fork rotatably engaged with a front wheel, a handle bar rotatably engaged with the front fork for steering the bike, a frame and a seat connected to the frame.

Abstract: A clutch means includes an immobile tube (60) disposed between a top tube (2) and a head tube (6) of a bicycle frame, with a bearing portion (20) mounted to one of the facing end portions and axially supporting the end portions, whereby the top tube (2) and the immobile tube (60) are disposed so as to be capable of relative rotation. In the outer periphery of the bearing portion (20) and the immobile tube (60) axially supported therein, pin holes (22, 62) are respectively opened. The pin holes (22, 62) are bored at positions that are centrally aligned when a front fork (4) of the bicycle is are linearly positioned.

Abstract: A bicycle operating system comprises a first operating device and a take-up device. The take-up device is configured to be provided in a tubular part of a bicycle body. The take-up device is configured to move a control cable configured to be connected to a bicycle component. The take-up device is operatively coupled to the first operating device via a first control element.

Abstract: A bicycle hydraulic operating device is basically provided with a base member, a piston, an operating member and a hydraulic reservoir. The base member includes a cylinder bore. The piston is movably disposed in the cylinder bore. The operating member coupled to the piston to move the piston within the cylinder bore. The hydraulic reservoir includes a hydraulic reservoir tank and a reservoir lid. The hydraulic reservoir tank is fluidly connected to the cylinder bore. The reservoir lid closes a tank opening of the hydraulic reservoir tank. The tank opening defines an opening cross sectional area. The hydraulic reservoir tank defines a tank cross sectional area parallel to the opening cross sectional area. The opening cross sectional area of the tank opening is smaller than the tank cross sectional area of the hydraulic reservoir tank.

Abstract: A manual and submersible auxiliary swim platform for a vessel having a main aft platform, the main aft platform having a recessed area for receiving the auxiliary swim platform. A pair of bracket assemblies secure the auxiliary platform to the main aft platform, and both bracket assemblies have a first bracket member, a second bracket member, and a detent bushing. The detent bushing is interposed and secured to the first and second bracket members at a common end. The detent bushing limits rotational and pivotal movement of the bracket assemblies in conjunction with a contact tab, pin and channel design of the bracket assemblies.

Abstract: The present invention discloses a bionic high holding power anchor, which includes an anchor rod, a suspension clasp coupled with one end of the anchor rod and an anchor fluke hinged with the other end of the anchor rod, wherein a plurality of fluke heads arranged at equal intervals are extended from a front end of the anchor fluke, fin-like streamlined balance wings are arranged at two sides of the anchor fluke; the fluke head is in a shape of triangle-like taper containing a plane side wall and two curved side walls, the plane side wall is an isosceles triangle, the two curved side walls are smooth curved surfaces, and the two smooth curved surfaces are symmetrical around a normal plane of the plane side wall.

Abstract: The present invention relates to a decompression buoy (1) comprising an inflatable bag (2) having a tubular portion (4) defining a an inside volume (12) and a longitudinal opening portion (6) with a first end (14) leading to the inside volume (12) and a second end (16) leading to the outside. The opening portion (6) thus enables gas to flow between the outside and the inside volume (12). The opening portion (6) includes a throat (18) of transverse dimension that is smaller than the transverse dimension of the first end (14), and the second end (16) is adapted to receive the end of a diving regulator.

Abstract: A system for transferring a fluid between a fixed or floating facility for producing or storing the fluid, and a vessel. The system includes at least one hinged arm arrangement that includes an inner arm hinged at one end to a support structure, so as to pivot in a vertical plane, and an outer arm hinged on the outer end of the inner arm. The hinged arm arrangement further includes a rotary seal having an axis extending in a longitudinal direction of the hinged arm. The rotary seal is disposed at the hinge linking the inner arm to the support structure.

Abstract: A pontoon boat includes at least two pontoon tubes, a platform supported on the at least two pontoon tubes, and an occupancy compartment capable of containing at least one occupant, the occupancy compartment having a length, a width, an upper portion extending vertically above the platform that includes a ceiling, and a lower portion extending vertically below the platform and into one of the at least two pontoon tubes, the lower portion including a floor surface for supporting the occupant. An entrance to the occupancy compartment is provided in the upper portion that permits the occupant to enter and exit the occupancy compartment.

Abstract: A wake control system aft of the driveshaft, propeller, and rudder of a vessel includes a fin base and at least one fin slidingly engaged with the fin base. The fin(s) are vertically oriented and extend down into the water surface. The fins are transversely adjustable along the fin base to redirect a wake generated by the boat. In other embodiments, the control system comprises a starboard fin tab adjacent to a port fin tab, each of the independent fin tabs hingeably attached to the aft section of the hull, at the transom. Each fin tab includes at least one extending fin. Fin tabs are selectively deployable and retractable into and out of the water surface to redirect a wake generated by the vessel from one side to the other. A novel underwater exhaust system redirects exhaust depending on speed of the vessel and complements the wake control system.

Abstract: A system for planning and predetermination of boat fender heights and dock location information, comprising a boat fender controller configured to calculate a required fender deployment height prior to arrival at a predetermined dock location, based on real-time information, and to raise or lower a plurality of boat fenders based on the calculated fender deployment height on final approach to the predetermined dock location.

Abstract: A multi-joint fish robot capable of rapid acceleration propulsion, including: a main body segmented into a first body, a second body and a third body; joints connecting the respective bodies; and a caudal fin provided at an end portion of a third body, and swims forming a curve by operations of the joints. The fish robot has a first occupancy ratio of a length of the caudal fin to a full length of the fish robot with respect to a swimming direction, in which the fish robot swims, and the first occupancy ratio ranges from 0.15 to 0.35, or the fish robot has a second occupancy ratio of a length of the first body to a length of the main body excluding the caudal fin with respect to a swimming direction, in which the fish robot swims, and the first occupancy ratio ranges from 0.45 to 0.75.

Abstract: The present invention relates broadly to a rigid wing (10) which in its preferred embodiment is a rigid wing sail fitted to a water-borne vessel. The rigid wing sail (10) comprises a pair of elongate rigid panels (12A) and (12B), and a hinge element designated generally as (14) coupled to the panels (12/B) to permit pivotal movement of the panels (12A/B) relative to one another. Each of the pair of panels such as (12A) includes an adjoining edge (16A) and an opposing lateral edge (18A). The hinge element (14) is coupled to the panels (12A/B) at the respective adjoining edges (16A/B) to form either: 1) a closed configuration of the wing (10) with lateral edges (18A/B) of respective panels (12A/B) positioned adjacent one another wherein the rigid wing sail (10) is closed; or 2) an open configuration of the wing (10) with the lateral edges (18A/B) of the respective panels (12A/B) separated from one another wherein the rigid wing sail (10) is set at a variable camber.

Abstract: An outboard motor power generation system includes an engine, a power generator, a converting device configured to convert alternating-current power into direct-current power, an engine cover configured to cover the engine, the power generator, and the converting device, a battery, and a transformer provided on an electric pathway between the converting device and the battery and configured to raise the voltage of the direct-current power output from the converting device relative to the charge voltage of the battery.

Abstract: An outboard motor includes an engine housed in a cowling and disposed above an upper case housing a driveshaft. A gear mechanism transmits a rotation of the driveshaft to a propeller shaft housed in a lower case disposed below the upper case. The gear mechanism is housed in an oil storage chamber of the lower case and is lubricated by a lubricating oil inside the oil storage chamber. An oil passage includes a lower oil port opening at the oil storage chamber, an upper oil port positioned higher than the lower case, and a longitudinal passage extending in an up/down direction inside the lower case.

Abstract: A sea water cooling system including a first fluid cooling loop coupled to a first side of a heat exchanger and to a thermal load, a second fluid cooling loop coupled to a second side of the heat exchanger and including a pump for circulating fluid through the second fluid cooling loop, and a controller operatively connected to the pump, wherein the controller is configured to monitor an actual temperature in the first fluid cooling loop and to adjust a speed of the pump based on the monitored temperature to achieve a predetermined temperature in the first fluid cooling loop. The system may be selectively operable in one of a plurality of operating modes accordance, wherein in a first operating mode the pump is operated based entirely on cooling demands of the thermal load, and in a second operating mode the pump is operated to maintain a fluid pressure above a predefined pressure.

Abstract: A sealing system for sealing a shaft located under water includes a bush mountable on the shaft and fixed to the shaft, a housing fixed with respect to the bush and surrounding a first portion of the bush, a lubricant chamber and an air chamber in the housing and open to the bush, the lubricant chamber being sealed with respect to the air chamber by a seal ring, a mechanical seal outside the housing and surrounding a second portion of the bush, an air supply line and an air discharge line connected to the air chamber, and a quantity of lubricating oil in the lubricant chamber, the lubricating oil being in fluid communication with a lubricant tank via at least one oil line, wherein an air pressure in the air chamber is greater than an oil pressure in the lubricant chamber.

Abstract: A steering device having two rudder plates vertically suspended at a distance from an outer edge of a propeller. The rudder plates are biaxially arranged and symmetrically rotate around a screw shaft within a propeller radius from a screw shaft center, on a propeller rotation plane, and are turned from aside the propeller to downstream of the propeller by rotation of the steering shafts, each of which is driven independently by two hydraulic driving mechanisms. The steering action of the steering device has two modes: the two-independent mode, where the plates rotate in the same direction, and the two-same direction modes, where the plates move in different directions. A method for steering the same to enhance a thrust flow by increase in a propeller rate is also provided.

Abstract: A flexible steering fin and passive cambering keel for sailboats having fundamental simplicity yet enhanced performance and superior operation in terms of design and components. The steering fin is a relatively short and elongated flexible blade with its leading edge fixed beneath the hull. A rod passing through the hull functions as a simple lever controlling the trailing edge of the blade, which provides both tilt and curvature for unique handling and ease of use. A separate flexible keel provides the function of tilting the keel as it is cambered, for greater lift. A unique fundamental mastless wingsail is also disclosed having minimal components and simplicity of operation. A mastless wingsail is also disclosed which utilizes a tensioned rod to replace known sail supports.

Abstract: One embodiment of the invention comprises a method for controlling a marine vessel having a first steerable propulsor, a corresponding first reversing device, a second steerable propulsor and a corresponding second reversing device. The method comprises receiving a first vessel control signal corresponding to a rotational movement and no translational movement command, generating at least a first actuator control signal and a second actuator control signal in response to the first vessel control signal, coupling the first actuator control signal to and controlling the first steerable propulsor and the second steerable propulsor, and coupling the second actuator control signal to and controlling the first reversing device and to the second reversing device. The method creates rotational forces on the marine vessel with substantially no translational forces on the marine vessel.

Abstract: A pneumatic fastening mechanism is provided for fastening an aircraft surface panel to an aircraft panel support member. The panel includes a plurality of receptacles extending from the panel lower surface. The panel support member includes a corresponding plurality of panel engagement mechanisms, disposed on the support member lower surface, and translatable through the support member to engage the receptacles. The panel engagement mechanisms are extendable from a first position, wherein the panel abuts and is engaged to the panel support member, to second position wherein the panel is elevated above the panel support member upper surface where the panel may be unlocked and separated from the panel engagement mechanism. The panel engagement mechanism is operative to elevate and release the panel in response to changes in fluid pressure communicated to the panel engagement mechanisms.

Abstract: A passenger aircraft with a passenger cabin is described, wherein the passenger aircraft comprises a fully functional door, which is openable and closable and which is adapted for an entrance and an exit of passengers, and en emergency exit door, which is exclusively adapted for an emergency exit of passengers from the passenger cabin. Therein, the emergency exit door is arranged in an area of a fuselage of the passenger aircraft, which is arranged ahead of and/or behind of wings of the passenger aircraft.

Abstract: A cargo system is provided. The cargo system may comprise a floor panel, a cargo sled configured to move across the floor panel, and a cargo restraint configured to translate relative to the floor panel. The cargo restraint may comprise a longitudinal restraint rod configured to protrude from the floor panel in a deployed position. The cargo restraint may also comprise a restraint surface disposed on the longitudinal restraint rod. The cargo restraint may enable the cargo sled to pass over the restraint surface in a stowed position. An electromechanical actuator may be mechanically coupled to the longitudinal restraint rod and configured to deploy and stow the cargo restraint.

Abstract: A method for manufacturing a strake is provided. The method includes: providing a first thermoplastic laminate panel; providing a second thermoplastic laminate panel; attaching the first thermoplastic laminate panel to the second thermoplastic laminate panel such that at least a portion of the attachment surface of the first thermoplastic laminate panel is attached to the attachment surface of a portion of the second thermoplastic laminate panel, which attached portions form a body of the strake; forming a first flange from a portion of the first thermoplastic laminate panel; and forming a second flange from a portion of the second thermoplastic laminate panel.

Abstract: A propeller which can be folded and stowed in compact form and then deployed for powered flight is disclosed. The deployable propeller has two or more blades, and each blade is composed of multiple segments which are disengaged when stowed and then interlock when deployed to form an efficient blade. The segmented deployable propeller retains all effective area to the spinner radius.

Abstract: A pivot for an air propeller blade, the pivot including a rotary support for mounting radially on a propeller hub while being suitable for pivoting about a pivot axis; and a blade support including a housing for receiving a blade root and at least one arm extending laterally relative to the pivot axis and carrying a flyweight forming a counterweight; the arm and its flyweight presenting the general geometrical shape of a spherical cap.