Abstract: A pump that can be a gear pump that drives a rotating body of an aircraft turbine engine such as a fan shaft, is set in rotation always in the same direction, by virtue of a transmission including an oblique double gear formed by a toothed wheel on the same side as the rotating body and meshing with two pinions connected to a shaft driving the pump through free-wheels with identical driving directions, whereas the pinions have opposite directions of rotation.

Abstract: An angled adapter for coupling a tool bit to a tool includes a housing and a transmission assembly positioned in the housing. The transmission assembly is configured to convert an input torque about a first axis from the tool to an output torque about a second axis acting on the tool bit. The second axis is disposed at an angle relative to the first axis. The angled adapter also includes a shank supported by the housing and including a tool coupling portion configured to couple to the tool. The tool coupling portion has an outer dimension. The shank also includes a transmission coupling portion coupled to the transmission assembly, and an intermediate portion extending between the tool coupling portion and the transmission coupling portion. The intermediate portion has a diameter that is less than the outer dimension.

Abstract: A gear unit includes a gear having a gear face and a plurality of gear teeth extending outwardly from the gear face. The gear unit also includes a hub integrally formed with the gear and arranged coaxially to the gear. The hub extends outwardly of the gear in a direction of a central axis of the gear. The gear unit also includes an undercut defined at an interface of the gear and the hub and includes a curved portion arranged at proximate to an inner end of the gear. The undercut reduces a stress concentration at the interface of the gear and the hub.

Abstract: A newly configured centerpoint drill and a drill attachment device that can be attached to a conventional cordless drill include configurations that require a user's hand to be in direct alignment with the keyless chuck of the drill to enable a user or operator to apply maximum pressure or force during use of a drill to reduce time and effort spent by a user/operator.

Abstract: A robot arm with a robot-hand drive device, which has at least three electric motors arranged in an arm boom of the robot arm for driving a multi-axis robot hand of the arm boom, each electric motor having an electric rotor, each of which has a motor shaft. The at least three electric motors are arranged in the interior of a common housing cylinder block, in such a way that each rotor lies in a separate cylinder sector of the housing cylinder block, more specifically with its respective motor shaft running parallel to the center axis of the housing cylinder block, said axis running longitudinally along the arm boom.

Abstract: A bearing compartment of a gas turbine engine includes a case element, a towershaft bearing located in the case element and supportive of a towershaft, and a shaft bearing located in the case element and supportive of an engine shaft. An integral gear support and bearing damper pedestal, includes a support base secured to the case element, and a gear support arm extending from the support base to the towershaft bearing. The gear support arm is supportive of the towershaft bearing. A bearing damper pedestal extends from the support base to the shaft bearing and is located radially outboard of a bearing outer race of the shaft bearing.

Abstract: A power tool includes a main body, a power input shaft unit having a driving bevel gear, and a power output shaft unit having a driven bevel gear to mesh with the driving bevel gear. The center of the power input shaft unit defines a first axis. The center of the power output shaft unit defines a second axis. The main body has an elbow portion corresponding in position to the intersection of the first axis and the second axis. An outer circumference of the elbow portion has a first plane parallel to the second axis and a second plane parallel to the first axis. The first plane is located between the second axis and the driving bevel gear. The second plane is located between the first axis and the driven bevel gear. The first plane and the second plane collectively define a recessed space.

Abstract: A hybrid electric gas turbine engine includes a fan section, a turbine section, a first gas generating core, and a generator assembly. The fan section has a fan. The turbine section has a turbine drivably connected to the fan through a main shaft that extends along a central longitudinal axis. The first gas generating core extends along a first axis that is radially offset from the central longitudinal axis. The generator assembly is drivably connected to the main shaft through a gear assembly.

Abstract: The articulated shaft structure includes: a first joint member; a second joint member supported rotatable about a first axis; a ring-like output hypoid gear fixed to the second joint member coaxially with the first axis; a gear assembly attached to the first joint member; and a motor, wherein the gear assembly includes a housing member, an input hypoid gear, and gears, the housing member including a second joining surface fixed to a first joining surface, the input hypoid gear being supported by the housing member rotatable about a second axis, the gears decelerating rotation of the motor and transmitting the rotation to the input hypoid gear, the first joining surface is parallel to the first axis, the second joining surface is perpendicular to the second axis, and the bolt is fastened radially outside of the gears of all kinds assumed to be used, the kinds being defined by reduction ratios.

Abstract: A power tool includes a tool handle and a tool head. The tool handle includes a housing having a grip portion and defining a longitudinal axis, a motor disposed within the housing and including a drive shaft having an axis of rotation substantially parallel to the longitudinal axis, a trigger positioned adjacent the grip portion for selectively activating the motor, and a handle interface. The tool head is selectively coupleable to the tool handle and includes a head interface for coupling with the handle interface of the tool handle, a transmission driven by the drive shaft of the motor when the tool head is coupled to the tool handle, and an output member coupled to the transmission. The output member defines an axis generally perpendicular to the axis of rotation of the drive shaft.

Abstract: A toothed workpiece having a modified surface geometry may be produced by a diagonal machining method by means of a modified tool. The modification of the tool can be described at least approximately at least locally in the generating pattern in a first direction of the tool by a linear and/or quadratic function; the coefficients of this linear and/or quadratic function are formed in a second direction of the tool which extends perpendicular to the first direction. A pitch and/or crowning of the modification varies in dependence on the angle of rotation of the tool and/or on the tool width position, and a tooth thickness of the modified tool varies in a non-linear manner in dependence on the angle of rotation of the tool and/or on the tool width position.

Abstract: A toothed workpiece having a modified surface geometry may be produced by a diagonal generating method by means of a modified tool whose surface geometry comprises a modification. The modification may be described by a linear and/or quadratic function, with the coefficients of this linear and/or quadratic function. Pitch and/or crowning of the modification may vary in dependence on the angle of rotation of the tool and/or on the tool width position. The specific modification of the tool produces a corresponding modification on the surface of the workpiece by the diagonal generating method, with a desired modification of the surface geometry of the workpiece being specified and a modification of the surface geometry of the tool suitable for producing this desired modification being determined in combination with a diagonal ratio of the diagonal generating method suitable for producing the desired modification.

Abstract: A gearbox for use in a vehicle having a motor assembly includes a housing and an input shaft coupled to the housing. The input shaft is configured to be coupled to a first component of the motor assembly. The gearbox also includes a first gear set positioned within the housing and coupled to the input shaft. An intermediate shaft is positioned within the housing and is coupled to the first gear set. The gearbox further includes a second gear set positioned within the housing and coupled to the intermediate shaft and an output shaft coupled to the second gear set and to the housing. The output shaft is configured to be coupled to a second component of the motor assembly.

Abstract: A robot wrist structure includes a first wrist element, a second wrist element, and a third wrist element which are respectively rotatable about a first axis to a third axis; drive motors for the second and third wrist elements; and gear sets that reduce speeds of rotation of the drive motors. The gear sets respectively include a driven-side large-diameter gear that rotates the second wrist element and a driven-side small-diameter gear that rotates the third wrist element, where the driven-side large-diameter gear and the driven-side small-diameter gear are coaxially arranged so as to be rotatable about the second axis. The small-diameter gear is fixed to a drive-side bevel gear that meshes with a driven-side bevel gear fixed to the third wrist element. The second wrist element includes a first housing that is fixed to the large-diameter gear; and a second housing rotatably supports the third wrist element.

Abstract: Apparatus are provided for a sensor platform. The sensor platform includes a sensor mount adapted to receive a sensing device, and a first articulation system that has a first rotational axis. The sensor platform includes a second articulation system that has a second rotational axis, and the second rotational axis is different than the first rotational axis. The sensor platform includes a base that supports the first articulation system, the second articulation system and the sensor mount. The first articulation system and the second articulation system are independently movable to define two degrees of freedom for positioning the sensor platform.

Abstract: An end effector for use and connection to a robot arm of a robotic surgical system, wherein the end effector is controlled and/or articulated by at least one cable extending from a respective motor of a control device of the robot surgical system, is provided. The end effector includes at least one gear train that transmits forces from the at least one motor of the control device to at least one of the proximal bracket of the wrist assembly, the distal bracket of the wrist assembly and the jaw assembly. The gear train enables at least one of a pivoting of the distal hub assembly relative to the proximal hub; a rotation of the distal bracket relative to the proximal bracket; and an opening/closing of the jaw assembly.

Abstract: Provided is a robot arm including an upper arm, a forearm installed at the distal end of the upper arm, a wrist element installed at the distal end of the forearm to be rotatable around an axis line and having a hollow part through which the axis line penetrates, a motor installed in the forearm and rotating the element around the axis line, and a mechanism transmitting rotation of the motor to the element while reducing speed of rotation. The motor includes a rotation center axis extending obliquely downward on the opposite side of the upper arm. The mechanism includes a hypoid gear set including an output hypoid gear fixed to the element coaxially with the axis line and an input hypoid gear, and a gear set including a gear wheel fixed to the input hypoid gear and a pinion fixed to the motor.

Abstract: A ram air turbine is provided that utilizes a one-piece strut. The strut includes an integral gearbox section and an integral drive section. Within the strut, a turbine shaft and a bevel gear engages a driveshaft and a pinion gear, which transfers rotation from the turbine to a generator. The strut may be machined from a single piece of metal, such as aluminum.

Abstract: A ram air turbine is presented that includes a turbine having a blade and a turbine shaft, a strut removably coupled to the turbine, wherein the strut has a gearbox section and a drive section, a turbine shaft with a bevel gear oriented perpendicularly to the turbine shaft and positioned within the gearbox section of the strut, a driveshaft coupled to the generator and positioned within the drive section of the strut, and a pinion gear that engages with the bevel gear, wherein the pinion gear is secured to the driveshaft by a spanner nut, wherein the pinion gear utilizes a key configured to interact with the keyed joint of the driveshaft. The pinion gear is supported by a pinion bearing that may be press fit onto the pinion gear and by one of the generator bearings.

Abstract: Provided is a drilling device for acromioplasty including an outer tube assembly including including a head section having a rotor having a first power transmission unit having a hollow structure and configured to receive power and a twist drill coupled to a lower end of the rotor with a hollow structure and provided with a suction port formed on an outer circumferential surface thereof, and an outer tube having a tubular shape and having one end to which the head section is coupled, an inner tube assembly including an inner tube having a hollow structure and rotatably inserted into the outer tube assembly, a second power transmission unit having a hollow structure and formed at one end of the inner tube to transmit power to the first power transmission unit, a rotation transmission unit formed at the other end of the inner tube and configured to receive a rotational force from the outside, and a discharge section disposed between the rotation transmission unit and the inner tube to discharge ground bone wast

Abstract: In a series of reduction gears including a parallel shaft reduction gear and an orthogonal shaft reduction gear, the parallel shaft reduction gear includes a motor, a parallel shaft reducer, and a first joint unit, and the first joint unit includes a first joint casing which is connected to a motor casing and a parallel shaft reducer casing, and a joint shaft which is connected to a motor shaft and the input shaft of the parallel shaft reducer. The orthogonal shaft reduction gear includes the motor and the parallel shaft reducer which are used in common with the parallel shaft reduction gear, a second joint unit in which a portion or all portions are used in common with the first joint unit, and an orthogonal reducer, and the motor, the second joint unit, the orthogonal reducer, and the parallel shaft reducer are connected to one another in this order.

Abstract: A computer system with read/write access to storage devices creates a snapshot of a data volume at a point in time while continuing to accept access requests to the mirrored data volume by copying before making changes to the base data volume. Multiple snapshots may be made of the same data volume at different points in time. Only data that is not stored in a previous snapshot volume or in the base data volume are stored in the most recent snapshot volume.

Abstract: A reduction gear includes: an orthogonal shaft reduction gear having an orthogonal shaft reduction gear casing; and a parallel shaft reduction gear having a parallel shaft reduction gear casing, which is connected to the orthogonal shaft reduction gear, wherein the orthogonal shaft reduction gear casing and the parallel shaft reduction gear casing are connected through a joint plate, the orthogonal shaft reduction gear casing has a flange portion protruding to the outside of the orthogonal shaft reduction gear casing, and the orthogonal shaft reduction gear casing and the joint plate are connected by a first bolt inserted into the flange portion from the orthogonal shaft reduction gear side, and a second bolt inserted into the joint plate from the parallel shaft reduction gear side.

Abstract: A power transmission device includes a gear speed reduction mechanism which includes an input shaft, an input pinion provided on the input shaft, a rotary shaft other than the input shaft, and a gear incorporated to the rotary shaft, and a casing which accommodates the gear speed reduction mechanism. The casing is made of resin and includes a casing body which includes an incorporating opening for incorporating the gear and a cover which closes the incorporating opening. The casing body includes an input side opening with the opening being a size that the input pinion can be inserted but the gear cannot be inserted. In addition, the rotary shaft is supported by a bearing support which is formed in the casing body, and the bearing support of the rotary shaft is not formed on the cover.

Abstract: A front differential for a four wheel drive vehicle including a pinion assembly with first and second pinions that are engaged with a ring gear assembly with first and second ring gears. The first pinion and first ring gear combination are rotatable independent from the second pinion and second ring gear combination, thus permitting one to rotate relative to the other. The first pinion and first ring gear combination are adapted to rotate one driven shaft, and the second pinion and second ring gear combination are adapted to rotate the other driven shaft. A bi-directional overrunning clutch assembly is engaged with an end of the drive shaft and includes one set of rolls located adjacent to the first pinion shaft, and another set of rolls located adjacent to the second pinion shaft. The clutch assembly control torque transmission between the pinion shafts and the drive shaft.

Abstract: Disclosed herein is an automatic cleaning apparatus for a gun barrel having cleaning means, wherein the cleaning means includes: a cylindrical tube having a plurality of insertion holes along the circumference thereof; a rotary gear connected to and driven by a motor; and cleaning members each of which includes a rotary shaft inserted into the insertion hole and a bevel gear joined to the lower portion of the rotary shaft and interlocking with the rotary gear, wherein the insertion hole includes a small hole and a large hole communicating laterally with the small hole, and wherein a fixing member fixes the cleaning member by making the cleaning member come into contact with the small hole when the cleaning member is fixed and does not prevent that the cleaning member is separated to the outside of the cylindrical tube through the large hole when the fixed cleaning member is released.

Abstract: A robot arm assembly with tubes or pipes carrying fluids or electrical cables which do not get bent and are relatively straight, and are not disrupted by, the moving parts of the robot arm includes a first robot arm, a second robot arm, a third robot arm, and a flexible carrying tube. The second robot arm includes a first axle base, a first input shaft, a first bevel gear, and a second bevel gear. The flexible tube is inserted into the first bevel gear and the second bevel gear along a first axis, and fixed to the output shaft.

Abstract: A differential-velocity driving device and a mechanical arm to which the differential-velocity driving device is applied are provided. The differential-velocity driving device includes a first rotary driving element, a first transmission gear connected to the first rotary driving element, a second rotary driving element, a second transmission gear connected to the second rotary driving element, a fixing member connected to the first rotary driving element and the second rotary driving element such that the first rotary driving element does not move or rotate with respect to the second rotary driving element, a power output gear engaged with the first transmission gear and the second transmission gear, and an output shaft passing through an axle center of the power output gear and being coaxial with the axle center.

Abstract: A ram air turbine gearbox housing includes a housing body that has a first flange that defines a first plane and a second flange that defines a second plane that is transverse to the first plane. The housing body extends around an axis and has a first axial end and an opposite, second axial end that are each open to an internal cavity of the housing body. The housing body includes a radially-enlarged section at least partially defining an oil sump within the internal cavity of the housing body.

Abstract: The invention relates to a beverage maker, which comprises a container (10) that is open at the top thereof and a lid (20) that covers the container. A removal opening (29) is formed in the lid. A vertical actuation rod (41) passes through the lid. Inside the container, a preparing element (42), for example, a mixing element, is attached to the actuation rod. Outside the container, a grip element (45) is attached to the actuation rod. The grip element can be moved together with the actuation rod between a lower position and an upper position. A closure (30) can be swiveled about a horizontal swivel axis between a closed position that doses the removal opening and a retaining position that releases the removal opening, wherein in the retaining position, the closure fixes the grip element in the lower position thereof. The actuation rod is thereby effectively prevented from sliding out through the removal opening when the beverage is removed.

Abstract: An apparatus for rotating a sensing device about a pan axis and a tilt axis may include an enclosure, first and second rotatable dials configured to allow a user to adjust an angular pan orientation and an angular tilt orientation, respectively, of the sensing device. The apparatus may include outer and inner concentric shafts attached to the first dial and the second dial, respectively. The apparatus may also include a frame assembly attached to the outer shaft such that the frame assembly rotates about the pan axis as the first dial is rotated. The frame assembly may include a base configured to rotate about the tilt axis and that supports the sensing device. The frame assembly may also include a pin and gear assembly operatively coupling the base to the inner shaft such that rotation of the second dial rotates the base about the tilt axis.

Abstract: A gear set is provided for use in a gearbox. The gear set includes a first bevel gear having a first rotational axis and a second bevel gear having a second rotational axis. The second gear is driven by the first gear. The first gear has an outside diameter of about 3.1956 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 1.83. The second gear has an outside diameter of about 2.8337 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 2.33.

Abstract: A power operated rotary knife (100) including: an annular rotary knife blade (300) including a knife blade bearing surface (319); a blade housing (400) defining a blade housing bearing surface (459); and a blade-blade housing bearing structure (500) disposed between the knife blade bearing surface (319) and the blade housing bearing surface (459). The blade-blade housing bearing structure (500) includes a rolling bearing strip (502) having a plurality of rolling bearings (506), such as ball bearings, disposed in spaced apart relation in a flexible separator cage (508). The rolling bearing strip (502) traverses through an annular passageway (504) defined between the knife blade bearing surface (319) and the blade housing bearing surface (459) to secure the knife blade (300) to the blade housing (400) and support the knife blade for rotation about a central axis (R) with respect to the blade housing (400).

Abstract: A degree of freedom of a hypoid gear is improved. Instantaneous axis in a relative rotation of a gear axis and a pinion axis, a line of centers, intersection between the instantaneous axis and the line of centers, and an inclination angle of the instantaneous axis regarding the rotation axis of the gear are calculated based on a shaft angle, an offset, and a gear ratio of a hypoid gear. Based on these variables, base coordinate systems are determined, and the specifications are calculated using these coordinate systems. For spiral angles, pitch cone angles, and reference circle radii of the gear and pinion, one of the values for the gear and the pinion is set and a design reference point calculated. Based on the design reference point and a contact normal of the gear, specifications are calculated. The pitch cone angle of the gear or the pinion can be selected.

Abstract: A hand tool gearing unit includes a fixed housing, a pivot housing mounted pivotably relative to the fixed housing about a pivot axis, a driving gearwheel, and a driven gearwheel mounted in the pivot housing. The hand tool gearing unit further includes a connecting unit which transmits a rotational movement from the driving gearwheel to the driven gearwheel.

Abstract: A follow focus for cameras, in particular film cameras, comprising a bevel gear having a first rotary axis (11) and a second rotary axis (13) arranged at an angle, in particular a right angle, to one another, a first transmission mechanism (26, 27) for transmitting the rotation of one of the axes (11) onto the other axis (13) by means of a positive locking connection acting in the direction of rotation of the axes, and a second transmission mechanism (28, 30) for transmitting the rotation of one of the axes (11) onto the other axis (13) by means of a frictional connection acting in the direction of rotation of the axes, wherein the rotation of the one axis (11) can be transmitted to the other axis (13) by means of the frictional connection of the second transmission mechanism (28, 30) until the frictional connection of the second transmission mechanism (28, 30) is overpowered and after the frictional connection has been overpowered it can be transmitted primarily by the positive locking connection of the firs

Abstract: A gearbox assembly includes a pinion gear having a gear stem extending axially through a tubular output stem of an output member with a threaded portion protruding from an output flange of the output member. A pinion nut includes a threaded inner bore threadably engaging the threaded portion of the gear stem to retain the output member to the pinion gear. An outer rim of the pinion nut defines an outer circumference having a tool recess and a deformation spaced circumferentially apart from the tool recess. The tool recess is adapted for receiving a tool to rotate the pinion nut in a first direction relative to the gear stem. The deformation engages an inner circumference of the output flange to prevent the pinion nut from rotating in a second direction relative to the gear stem.

Abstract: A gearbox assembly includes a first face gear driveable about a face gear axis in a first direction by at least one first pinion gear and a second face gear driveable about the face gear axis in a second direction opposite the first direction by at least one second pinion gear. A thrust bearing is located between the first face gear and the second face gear. The first face gear is configured to drive rotation of a first shaft in the first direction and the second face gear is configured to drive rotation of a second shaft in the second direction. Further disclosed is a power train for a rotary wing aircraft having a gearbox including a first face gear rotatable in a first direction and a second face gear rotatable in a second direction opposite the first direction.

Abstract: A right angle drive is provided. The right angle drive includes an input shaft, an output shaft, a housing a pair of input shaft bearings and a pair of output shaft bearings. The input shaft carries an input gear for rotation about an input axis. The output shaft carries an output gear for rotation about an output axis. The input and output gears are coupled to transfer rotational motion therebetween. The input and output axis being non-parallel to one another. The pair of input shaft bearings carry the input shaft within the housing for rotation about the input axis. One bearing is on either side of the input gear. The pair of output shaft bearings carry the output shaft within the housing for rotation about the output axis. One bearing is on either side of the input gear. The bearings may interlock with one another.

Abstract: A gearbox transmits rotational movement from a driving member to a driven member. The gearbox includes a pinion gear disposed inside a housing. The gear defines an axial bore and rotates in response to rotation of the driving member. An output member extends through the axial bore and engages therewith such that the output member rotates in response to rotation of the gear. The output member extends to a position outside the housing to rotate the driven member. A clamping nut is threadably coupled to the output member and abuts the gear thereby retaining the output member and the gear together. A bearing is disposed radially between the gear and the housing. The bearing rotatably supports the gear and the output member.

Abstract: An axle assembly and method for assembling such axle assembly for a vehicle are disclosed. The axle assembly may comprise meshed ring and pinion gears, a center housing portion, and left and right leg housing portions. The center housing portion may include a center housing defining a center cavity in which the bevel gear is disposed, and at least one channel having an entrance port into the center cavity. The axle assembly may include a first conduit configured to branch off of the first channel in a first direction and a second conduit configured to branch off of the first channel in a second direction. Such channels and conduits may be integral to the center housing or substantially external to the center housing.

Abstract: A gear pair set comprising low shaft angle and offset bevel gears and a method for their manufacture including determination of the appropriate gear and pinion blanks and the basic machine settings for their manufacture. The pair of bevel gears comprises a first member and a second member wherein the members of the pair have a shaft angle in the range of greater than 0° to 30°, preferably greater than 0° to 20°, and have an offset in the range of greater than zero to the sum of half the mean pitch diameters of the two members of the bevel gear pair.

Abstract: An axle arrangement for a working machine with at least one drive-through axle. The drive-through axle comprises a crown bevel gear (111), a pinion gear (112) and an output shaft (104) for driving a further axle. The crown bevel gear (111), the pinion gear (112) and the output shaft (104) are surrounded by a housing (103) and the output shaft (104) is arranged coaxially with the pinion gear (112).

Abstract: A gear set is provided for use in a gearbox. The gear set includes a first bevel gear having a first rotational axis and a second bevel gear having a second rotational axis. The second gear is driven by the first gear. The first gear has an outside diameter of about 3.1956 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 1.83. The second gear has an outside diameter of about 2.8337 inches, an outer cone distance of about 2.1044 inches, a face width of about 0.62 inches, and a ratio of the outside diameter to a length parallel to the axis of rotation between the crown and the pitch apex of about 2.33.

Abstract: A multiple-angle transmission tool includes a first shell, a transmission stick, a first gear, a second shell, a connecting unit, a second gear, a transmission unit and a screw bolt, wherein each the first shell and the second shell has a connecting surface that has a number of recessed portions arranged in a circular manner, and each recessed portion is spaced with a protruding portion to form a restricted position to engage. Also, the first gear, the second gear and the transmission unit are located in a receiving space formed within the first shell and the second shell. When the first shell and the second shell move along the entire circumference, the momentum can be transmitted and changed when the first shell, the second shell and the transmission unit are engaged.

Abstract: A flying apparatus having a frame configured to couple to a high voltage tether system, and at least one motor module mounted to the frame, the module including a holding structure attached to the frame, a rotating structure, including a rotor shaft, configured to rotate relative to the holding structure, a rotor attached to the rotor shaft and a plurality of motors attached to the holding structure, each including a drive shaft configured to engage with the rotor shaft, wherein the motors are configured to receive electrical energy from the tether system and drive the drive shafts to create a torque on the rotor shaft to thereby rotate the rotor and create lift to fly the apparatus from the ground to a desired position aloft while remaining coupled to the tether system.

Abstract: A drive-force-distribution control device includes an input-side bevel gear and an output-side bevel gear, a center shaft, left and right clutches, a housing, a bearing and a shim member. The output-side bevel gear is supported on the center shaft such that the output-side bevel gear meshes with the input-side bevel gear. The housing can be divided in the radial direction of the output-side bevel gear. The bearing is disposed at one end of the center shaft. The shim member is inserted in an axial-direction gap between the housing and the bearing. The output-side bevel gear and the center shaft can be attached to the housing from the radial direction. The axial end of the center shaft is located towards the other end with respect to the axial end of the bearing.

Abstract: A double involute pinion-face gear drive system provides transmission of torque and speed, or direction of movement modification between non-intersecting shafts at right angles to one another. Specifically, the system includes three distinct types of gear drives, in which a double involute cylindrical pinion mounted on one of the two axes, engages a rotatable disk-shaped gear mounted on the second axis, disposed orthogonally offset at a prescribed center distance relative to the first axis. The teeth of the cylindrical pinion are curved in an abridged, normal or extended involute shape and may include an involute-shaped tooth depth profile in a plane passing through the tooth pitch point and orthogonal to the axis of the pinion. Likewise, the teeth of the face gear are curved in abridged, normal or extended involute shape in the lengthwise direction of the teeth and may include a straight line shaped tooth depth profile. These gear drive systems can be simultaneously bi-rotational and bi-directional.

Abstract: A supporting structure includes a casing, a bearing having an inner ring, an outer ring, and rolling elements disposed between the inner ring and the outer ring, and an attachment member which detachably and directly attaches a shaft to the inner ring. The outer ring is supported by the casing, and the shaft is adapted to be able to be directly fixed to or removed from the inner ring by the attachment member in a state where the bearing is assembled to the casing.

Abstract: A method of determining an optimized face cone element for spiral bevel and hypoid gears. The form of the root fillet of one member of a gear pair is determined and that from is transferred to the tip of the other member of the gear pair. With the inventive method, tooth root-tip clearance is optimized and the contact ratio is maximized while avoiding root-tip interference between mating gear members.