Abstract: The present invention relates to a spar cap for a wind turbine blade and a method for manufacturing said spar cap. The spar cap comprises: a plurality of reinforcing fibre layers comprising unidirectionally oriented reinforcement fibres, wherein the plurality of reinforcing fibre layers are arranged such that the spar cap tapers in thickness towards a first longitudinal end, and a number of first fibre skin layers arranged on a first surface of the plurality of reinforcing fibre layers, and a number of second fibre skin layers arranged on a second surface of the plurality of reinforcing fibre layers, such that the plurality of reinforcing fibre layers are arranged between the number of first fibre skin layers and the number of second fibre skin layers.

Abstract: A wind turbine comprising, a tower, a nacelle mounted on the tower, and a rotor defining a rotor axis extending in a vertical center plane and configured for harvesting wind energy by rotation of blades in a rotor rotation direction about the rotor axis. The nacelle comprises a rotor-supporting assembly forming a load path from the rotor to the tower and configured for receiving rotor torque caused by the rotation of the rotor. To reduce loading of the tower and potentially provide a cheaper construction, the nacelle has a center of gravity which is offset from the center plane in a direction relative to the rotor rotation direction to counteract the rotor torque.

Abstract: Systems, methods, and computer readable medium are disclosed for coordinating rotation of adjacent turbines.

Abstract: A method is provided for controlling power oscillations at a point of common coupling in a wind park. Individual power reference offsets defining an adjustment to a wind turbine power reference signal for counteracting mechanical oscillations in the respective wind turbines are received from respective wind turbine controllers. Based on an aggregated power reference offset, a total power oscillation compensation signal is determined. Individual power oscillation compensation signals for adjusting the wind turbine power reference signal of respective wind turbines are determined based on the individual power reference offsets and the total power oscillation compensation signal. These individual power oscillation compensation signals are then sent to the respective wind turbines.

Abstract: A continuous fluid flow power generator includes an electrical generator with submersible turbine blades in communication with a flow of fluid in a body of water to generate electricity. The generator may include a water tower and a hydro turbine generator to generate electricity through kinetic actions; a float and piston assembly activated by wave action to deliver water to the water tower; kick turbines to create water flow to the water tower through submersible pumps; and a rechargeable battery in communication with the electrical generator and the hydro turbine generator. The generator may also include solar assemblies and windmills to provide supplemental electricity generation for charging the rechargeable battery. The generator may be connectable to a battery bank aboard a vessel or to an electrical grid.

Abstract: A method is for controlling the quality of a wind turbine rotor blade. The method includes: manufacturing of a wind turbine rotor blade at a manufacturing site, placing the wind turbine rotor blade on a support at the manufacturing site, applying a dynamic load to the wind turbine rotor blade while the wind turbine rotor blade is placed on the support in order to excite a vibration of the wind turbine rotor blade, detecting the vibration of the wind turbine rotor blade, determining an eigenfrequency of the wind turbine rotor blade based on the detected vibration, comparing the determined eigenfrequency with an expected eigenfrequency of the wind turbine rotor blade and evaluating the quality of the wind turbine rotor blade based on the results of the comparison.

Abstract: The invention provides a device for cleaning and maintaining the interior of a hub in a wind turbine nacelle, belonging to the technical field of wind power equipment. The device comprises a handle component, a switching assembly, a combined cleaning assembly and a maintenance assembly. The switching assembly is connected in a switching shaft block through a switching shaft. A high-temperature steam cleaning mechanism and a negative-pressure contaminant suction mechanism are arranged in the cleaning assembly to remove oil contaminants in the hub in the wind turbine nacelle. The device has a high level of integration, is easy to operate, and can improve the operation stability of a wind turbine.

Abstract: A nacelle for a wind turbine includes: a nacelle housing; a rotor shaft; a rotor hub, arranged on the rotor shaft; a first rotor shaft bearing for bearing the rotor shaft on the nacelle housing; and a second rotor shaft bearing. The first rotor shaft bearing and the second rotor shaft bearing are arranged at an axial distance to one another and the first rotor shaft bearing is arranged closer to the rotor hub than the second rotor shaft bearing. The first rotor shaft bearing has a first sliding surface having an averaged first sliding surface diameter and the second rotor shaft bearing has a second sliding surface having an averaged second sliding surface diameter. The first sliding surface faces away from the rotor hub at least in some sections, wherein the first sliding surface and the second sliding surface face one another at least in a partial section.

Abstract: An elevated or ground level vertical cylinder houses one or more propellers and/or turbines that are rotated by heated air convection within or around or above the cylinder. The rotating shafts of the propellers generate electricity in an area at bottom of or below the cylinder. For added, improved air flow directions and volumes; and, for stabilization of the rotating shaft or shafts, a circular pyramid collar structure is disposed below the cylinder. Heat is directed to the cylinder by a plurality of sun tracking concave mirrors that are positioned in concentric circles at various heights. The cylinder may be composed of concrete, ceramics, metal compounds or other materials and operate with a surface temperature that may range 70 to 1,300 degrees Fahrenheit. An optimized system may be constructed on less than one, one or more than one acre of land that could appear as a park like setting.

Abstract: Disclosed are oligomeric machines for energy harvesting having a first oligomeric module having a first end and a second end, a second oligomeric module having a first end and a second end. Exemplary oligomeric machines are configured to exhibits stochastic resonance and/or spontaneous vibrations and are configured such that in response to a prescribed amount of energy applied thereto, relative movement occurs between the first oligomeric module and the second oligomeric module in a manner causing the mechanical action of the second oligomeric module on an electric generating element to produce an electrical voltage and/or current. Also disclosed are energy harvesting cells having a thermal cell, a mechanical-electrical transducer with at least two capacitor plates, and at least one oligomeric machine.

Abstract: A first fracturing pump is selectively engaged or disengaged a from an electric prime mover based on operation of a first lever by a user. The first lever, the electric prime mover, and the first fracturing pump are mounted on a mobile transport. A second fracturing pump is selectively engaged or disengaged a from the electric prime mover based on operation of a second lever by the user. The second lever is also mounted on the mobile transport. The electric prime mover is operable to drive one of the first and second fracturing pumps that is engaged with the electric prime mover while not driving the other of the first and second fracturing pumps that is disengaged from the electric prime mover by operation of a corresponding one of the first and second levers.

Abstract: Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a calibrated orifice during two working phases of the pump (expansion and compression), which provides for a non-zero volumetric efficiency of the mechanically driven pump.

Abstract: A tire repair system for inflating or repairing a tire. The tire repair system includes a carrying case, an inflation system, a sealant delivery system, and a hose attachment. The inflation system positioned in or integrated with the carrying case, wherein the inflation system is configured to provide compressed air. The sealant delivery system positioned in or integrated with the carrying case, wherein the sealant delivery system is configured to mix a tire sealant with the compressed air. The hose attachment engages the tire and delivers the tire sealant and the compressed air to the tire.

Abstract: A damped compressor used in mobile appliances. The appliances may comprise a compressor which is disposed within a housing and is in fluid communication with a refrigerant system. Within the housing there is an improved damping or stabilizer system which limits movement of electric or mechanical portions, or both, of the compressor within the housing. At startup and shutdown, when oscillations of the components within the housing are generally maximized, the components are limited from contacting the housing internal structure so as to inhibit damage to the compressor and reduce the noise associated with such contact. The components are also damped from movement associated with the mobile application of the compressor.

Abstract: A double diaphragm pump having opposing diaphragms acted upon by a thrust rod are driven by a linear actuator preferably connected to a motor, such as a servo motor. The linear actuator is restricted to linear only motion and may have a piston oppositely oriented relative to a direction of a shaft extending from the motor.

Abstract: A method for controlling a microfluidic pump having a pump body defining a cavity, and an actuator arranged to generate pressure oscillations of a fluid contained within the cavity in order to cause fluid flow through an inlet and an outlet of the cavity, the method comprising: oscillating the actuator at a first frequency and determining an indication of a peak velocity of the a peak velocity of the actuator at said first frequency; oscillating the actuator at a second frequency and determining an indication of a peak velocity of the actuator at said second frequency; and adjusting the frequency of oscillation of the actuator to said first or second frequency for which the lowest peak velocity of the actuator was determined.

Abstract: An assembly is used to connect an equalizer bar to a walking beam of a reciprocating pump unit. The walking beam has a bearing shaft having cylindrical ends. Brackets attached to the equalizer bar define slots, each having a hooked section and having a base section. The hooked sections are configured to rest against the cylindrical ends of the bearing shaft. The base sections of the slots oppose the hooked sections at a gap from the cylindrical ends of the bearing shaft. Wedges are configured to position in the slots between the bases and the cylindrical ends of the bearing shaft.

Abstract: A horsehead is used on a walking beam of a reciprocating pump unit. The horsehead includes side plates, a face, tabs, and brace plates. The side plates are spaced apart, and the face affixed to front, arced edges of the side plates. The face defines a split therein extending from a bottom end toward a top end, and the tabs are affixed to the face across the split. The face thereby defines two runner surfaces. A fixture at the top end of the face can be used for connection to a bridle of the pump unit. The brace plates are connected in the space between the side plates and are arranged in a lattice structure. Preferably, the brace plates include cutouts to reduce weight.

Abstract: An electrically-driven oil pump device includes a pump that circulates oil, a motor that drives the pump, a control unit that drives the motor on the basis of the received command rotational speed, a current detection unit that detects a motor current flowing through the motor, and a rotation sensor that detects the rotational speed of the motor. When the current detection unit detects a motor current greater than or equal to a set value that has been set in advance on the basis of the relationship of the motor current with respect to the pressure (hydraulic pressure) of the oil, the control unit outputs a response rotational speed corresponding to the command rotational speed instead of the actual rotational speed detected by the rotation sensor.

Abstract: A stator is provided for a progressive cavity device. The stator includes modular stator segments connected together. Each stator segment includes a front surface, a rear surface, and an internal helical cavity extending longitudinally from the front surface to the rear surface. Each stator segment also includes a set of bolt holes extending longitudinally from the front surface to the rear surface, and a set of connection holes opening at the front surface and extending at least partially longitudinally from the front surface to the rear surface. Bolts, inserted through the bolt holes into connection holes of an adjacent stator segment, connect the stator segments and align the internal helical cavities to form a continuous helical chamber.

Abstract: A climate control system includes a compressor which includes a compressor housing, a compressor element provided in the compressor housing, a lubricant circuit, and an auxiliary sump. The lubricant circuit includes a lubricant sump provided in the compressor housing. The auxiliary sump is in fluid communication with the lubricant sump. A method for maintaining lubrication supply for a compressor of a climate control system includes transferring lubricant from the auxiliary sump to the lubricant sump of the compressor when a height of the lubricant in the auxiliary sump is greater than a height in the lubricant sump and returning the lubricant from the lubricant sump to the auxiliary sump when a height of the lubricant in the lubricant sump is higher than a height of a predetermined minimum level in the lubricant sump. The lubricant in the auxiliary sump and lubricant sump are equalized by gravity.

Abstract: Aspect of the disclosure provides a method of pumping a liquid material. The method may include pumping the liquid material by rotating an impeller attached to a shaft assembly. The pump includes the impeller, the shaft assembly, and a pump chamber. The method includes controlling the minimum pressure of the liquid material in the pump chamber to be above a threshold pressure by controlling a pressure of a gas that is supplied to the pump chamber. The shaft assembly includes a first shaft and a second shaft that are separated by a gap and are physically coupled by a coupling component.

Abstract: A multifunction controller permits a single controller to be used for multiple options in a pump system thereby simplifying the process of selecting a proper controller for a particular application for many embodiments. The multifunction controller may provide leak detection, pump rate control, pump count control, tank level control, tank pressure control and/or other functions in a system.

Abstract: A method of monitoring the operation of a fan, wherein the method comprises the following steps of: performing at least one measurement (1) by detecting at least one input signal (2.1, 8.1) over at least one time period, calculating characteristic values (2, 8) of an actual state based on the measured input signals (2.1, 8.1), comparing (3, 9) the calculated characteristic values (2, 8) of at least one actual state with limit values (3.1, 9.1), classifying (4) the actual state on the basis of the comparison (3) either as an anomaly-free normal state (5) or as a general anomaly state (6), and monitoring whether at least one specific anomaly state (12) is present.

Abstract: An electric submersible pump (ESP) assembly. The ESP assembly comprises a seal section that comprises a housing and at least one sacrificial anode assembly. The at least one sacrificial anode assembly comprises a sacrificial material suitable to attenuate the corrosive effect of H2S fluid (hydrogen sulfide) and comprises a containment disposed inside the housing. The containment defines an annulus between an outside of the containment and an inside of the housing. The containment is disposed around the sacrificial material. The containment defines interiorly an initially void space downhole of the sacrificial material. The at least one sacrificial anode assembly defines a folded fluid flow path through the sacrificial material.

Abstract: A centrifugal blower includes a plurality of blades, a shroud, a main plate and a tubular portion. An air flow passage is formed between each adjacent two of the blades. When the blades are rotated, air, which is suctioned from one axial side into a suction port is conducted through the air flow passage and is radially outwardly discharged. The shroud has a cover region, which faces another axial side and is shaped in a convex arcuate form. An axial end part of the tubular portion, which faces the one axial side, has an end surface. The end surface and a second virtual line are parallel to each other, or a distance, which is measured between the end surface and the second virtual line in the axial direction, is progressively increased from a radially inner part to a radially outer part of the end surface.

Abstract: Embodiments of this application provide a fan apparatus and an electronic device. The fan apparatus includes a first housing, a second housing, a fan blade unit, and a fence member located in the first housing. The fan blade unit is rotatably disposed in an accommodating cavity in the first housing. The fence member is located on a circumferential outer side of the fan blade unit. The second housing is covered on the first housing and the fence member, and encloses at least one resonant cavity together with the first housing and the fence member. The resonant cavity communicates with the accommodating cavity through a muffling hole on a cavity wall. Air in the resonant cavity resonates under excitation by an airflow of the fan blade unit. The fan apparatus of this application helps alleviate a noise problem caused by a fan with a high rotational speed, without affecting a heat dissipation effect of an existing electronic device.

Abstract: The present invention relates to a fruit or vegetable shaped fan for dispersing airborne eye irritants that are released during cutting fruits or vegetables. The fan includes a base that is wedge-shaped, an air inflow collimator that is fruit or vegetable shaped having an open front end, an internal frame that is configured to provide minimal abatement to airflow through the air inflow collimator, a motor mount that secures a motor, a fan blade that attaches to the motor, and a grill that attaches to the open front end of the air inflow collimator. The fan is configured to disperse airborne eye irritants away from a user's eyes. Airborne eye irritants are released when certain fruits and vegetables are chopped or otherwise cut. Such fruits and vegetables that can release airborne eye irritants when cut include onions, peppers, and certain other fruits and vegetables.

Abstract: The application discloses an air pump upper cover and an air pump. The air pump upper cover comprises a main body and a magnetic element arranged in the main body. The main body comprises a first cover body and a second cover body. The second cover body extends towards the first cover body to form an annular boss. An avoidance hole is formed in the first cover body at the area corresponding to the annular boss and a gap is formed between the avoidance hole and the annular boss. The magnetic element is arranged around the avoidance hole, and the first cover body and the second cover body jointly form a chamber used for containing the magnetic element. By arranging the magnetic element, the air pump can be attached to metal parts via magnetic force so as to adapt to various application scenes, and the universality and practicability of the air pump are improved.

Abstract: Disclosed here is a system and method to control multiple eversion-based actuators using a single motor, or no motor, thereby reducing the size and cost of the multiple eversion-based actuators. An activation mechanism can include a motor rotating in an expansion direction, rotating shaft, clutch, brake, pressure source under high pressure, and/or valve. The activation mechanism can cause the actuators including a wound reel of material to unwind and lengthen. A retraction mechanism can include a motor rotating in a contraction direction opposite the expansion direction, rotating shaft, clutch, pressure source having low pressure, valve associated with the pressure source, and/or the passive retraction system. The retraction mechanism can cause the actuators to rewind and shorten.

Abstract: Disclosed here is a system and method to control multiple eversion-based actuators using a single motor, or no motor, thereby reducing the size and cost of the multiple eversion-based actuators. An activation mechanism can include a motor rotating in an expansion direction, rotating shaft, clutch, brake, pressure source under high pressure, and/or valve. The activation mechanism can cause the actuators including a wound reel of material to unwind and lengthen. A retraction mechanism can include a motor rotating in a contraction direction opposite the expansion direction, rotating shaft, clutch, pressure source having low pressure, valve associated with the pressure source, and/or the passive retraction system. The retraction mechanism can cause the actuators to rewind and shorten.

Abstract: A body assembly has a vehicle structural element configured to mechanically couple to an energy storage housing. At least one guide element redirects a gas flow emerging from at least one exit port of the energy storage housing. The at least one exit port is configured to pass gas from within the energy storage housing to an external environment external to the energy storage housing.

Abstract: A connector is provided to attach a supported member to a supporting member, with the supported member being in sloped and skewed relation to the supporting member. The connector has back members attached to side members. A seat member attaches to the side members through a hinged connection. The seat member interfaces with the bottom face of the supported member and can be disposed at a sloped angle. A pair of seat side members extend from the seat member.

Abstract: A torque transfer assembly including a drive shaft with external splines. A first proximal groove and a first distal groove of the drive shaft are spaced apart at a first distance. A driven member includes a hub configured to receive the drive shaft. The hub includes internal splines, a second proximal groove, a second distal groove, and a slit. The second proximal groove and the second distal groove are spaced apart at a second distance equal to the first distance. A first retention member is configured to be inserted into the slit and into cooperation with the first proximal groove when the drive shaft is seated in the hub. The first distal groove of the drive shaft aligns with the second proximal groove of the hub when the drive shaft is within the hub such that the first proximal groove of the drive shaft is aligned with the slit.

Abstract: A frame pool is disclosed including a frame assembly and a pool liner, the frame assembly including horizontal frame members and a vertical frame member coupled together via a T-shaped joint. The T-shaped joint may be constructed of plastic to facilitate attachment and detachment to the adjacent frame members and to resist galling and corrosion. The T-shaped joint may also be relatively small to improve the appearance and water containment of the frame pool.

Abstract: A fitting part of a connection fitting has a main body and at least one mounting face. A first mounting face is disposed on a first longitudinal end and is arranged parallel or at an angle to the fastening face and has a latching element. A second mounting face is disposed on a second longitudinal end and is arranged with respect to the fastening face at an inclination about the longitudinal axis or an axis extending parallel thereto, and has a latching element. A third mounting face is formed by a groove base of a transverse groove in the main body and is arranged parallel or at an angle to the fastening face and has a latching element. A fourth mounting face is formed on another longitudinal face of the main body, and is arranged parallel or perpendicular to the fastening face and has a comb-like surface profile.

Abstract: Disclosed is a push-on fastener assembly to couple a first component to a second component via a post associated with the second component. The push-on fastener assembly is a multi-component push-on fastener assembly having a first retainer and a second retainer. The first retainer has a first annular body with a first topside surface and a first underside surface. The first annular body defines a first opening and a first plurality of retainer fingers coupled to the first annular body and canted upwardly away from the first topside surface at a first angle. The second retainer has a second annular body with a second topside surface and a second underside surface. The second annular body defines a second opening, a second plurality of retainer fingers coupled to the second annular body and canted upwardly away from the second topside surface at a second angle, and one or more retainer legs to secure the first retainer relative to the second retainer.

Abstract: A fastening device including a back plate, a rear cover and an elastic piece is provided. The rear cover is arranged on the back plate and has a protruding portion. The elastic piece is arranged between the back plate and the rear cover. The elastic piece has a first opening, and the protruding portion passes through the first opening, and the first opening is a tooth-shaped structure.

Abstract: A torque-limiting axle nut includes an inner nut having an inner-nut body forming a threaded center hole that defines a rotation axis. The inner nut also has a flange that encircles and extends radially away from the inner-nut body. The flange forms a plurality of recesses. The axle nut also includes a retaining ring encircling the inner-nut body and an outer nut encircling the inner-nut body. The outer nut forms grooves that extend axially upward from a bottom face of the outer nut and that extend azimuthally around the rotation axis. For each pair of neighboring grooves, the outer nut forms a ridge therebetween. The axle nut also includes a wave spring that encircles the inner-nut body and is located axially between the retaining ring and the outer nut. The axle nut also includes ball bearings seated in the recesses and extending into the grooves.

Abstract: A captive shear bolt assembly includes a bolt and a shear coupling. The bolt may have a head, an extension, and a shank. The shear coupling may be configured to be received by the extension. The shear coupling may be configured to receive the extension via an orifice in the shear coupling. The shear coupling may be configured to shear when an upper head of the shear coupling is driven at a threshold torque. When the shear coupling has sheared, the extension may be configured to captively secure the upper head to the bolt. The captive shear bolt assembly may be used in a tap connector for electrically connecting a main conductor to a tap conductor.

Abstract: A fastening arrangement is made with a screw that has a shank, at least one thread helix being arranged on the shank, and a cured compound. The screw is arranged in a hole in a substrate, and a gap between the shank and the hole wall is filled with a cured aluminate-containing inorganic composition.

Abstract: A screw includes a head and a threaded rod connected to the head. An annular protrusion is provided on a surface of the head located on a threaded rod side. When two connecting members are connected by the screw, the annular protrusion of the screw abuts against one of the two connecting members to form a tightly abutting structure to achieve sealing.

Abstract: The presently disclosed fitting stop turn device includes a fitting retainer plate and a backer plate that provide a clamping mechanism to a fitting that passes through a partition such that the fitting retainer plate and backing plate prevent axial rotation of the fitting positioned through the partition. The fitting retainer plate secures the fitting on a first side of the partition and abuts a first side of the partition, while the backer plate abuts a second side of the partition. The retainer plate and backer plate are held in their respective positions against the partition by one or more fasteners that traverse the retainer plate, the partition, and the backer plate.

Abstract: An injection washer for an anchor system having a rod portion fixed to a surface, the injection washer including first and second opening portions arranged relative to each other along an axis parallel with the rod portion in use and which together define an opening through which the rod portion extends in use, the first opening portion having a smaller width than the second opening portion in a direction perpendicular to the rod portion and wherein a gap extends through a side of the injection washer into each of the first and second opening portions.

Abstract: To provide a screwing fastener that is capable of preventing damage to a function adding member when tightening, and is capable of maintaining suitable functions of the function adding member and a suitable fastened state. A screwing fastener includes a fastener main body 10, a screw portion 13 for tightening the fastener main body 10 to a fastened member 200, a flange portion 14 provided to the fastener main body 10, and a seal function adding member 20 (function adding member) that is provided to the flange portion 14, in which the seal function adding member 20 comes into contact with the fastened member when tightening. The seal function adding member 20 has at least a two-layer structure of a sliding portion 22 (first adding portion) that is in contact with the flange portion 14, and a seal portion 21 (second adding portion) that comes into contact with the fastened member 200.

Abstract: Disclosed is a channel hanger that is generally made up of a U-shaped hook that extends from an upper half of a channel member, the channel member configured to conform to the top of a rafter. The channel hanger further includes a center channel member having a first and second leg extending from either side of the center channel member. The center channel member is in the upper half and the distal ends of the legs are in the lower half of the channel member. The channel hanger also includes a web that bridges a convex region of the U-shaped hook with the first leg. The web extends into the lower half.

Abstract: A mounting assembly for transportation and/or handling of a vehicle part includes an anchor plate, a harness bracket, a fastener and a tooth washer. The anchor plate includes a mounting aperture. The harness bracket is positioned atop the anchor plate. The harness bracket includes a through hole aligned with the mounting aperture and at least two raised features extended from an upper surface of the harness bracket and located adjacent the through hole. The raised features are integral with the harness bracket. The fastener extended through the through hole and the mounting aperture is in direct contact with the raised features. The tooth washer is fitted onto the fastener beneath the anchor plate to maintain positioning of the harness bracket atop the anchor plate.

Abstract: A hinge device of the present invention comprises: a housing positioned between an end of a first body and an end of a second body, which interwork and move relative to each other; first and second hinge blades fixed to the first and second bodies, respectively, and rotatably supported by the housing, respectively, so as to make rotating movements by a predetermined angle between “an unfolded position” in which the first and second bodies are on the same horizontal line and “a folded position” in which the first and second bodies face and fold onto each other; and first and second sloping plates installed on the first and second hinge blades, respectively, and configured to interwork by pressurization during rotational movements of the first and second hinge blades so as to move between a horizontal position in which same are aligned with horizontal lines of the first and second bodies in the “unfolded position” and a sloping position in which same are disposed to slope from the horizontal lines of the first

Abstract: A lock mechanism includes a lock shaft (12) attached to a first bracket (3), a lock shaft support shaft (11), and a biasing spring that biases the lock shaft (12) in a direction in which the lock shaft (12) abuts against a second bracket (4). Rotational movement prevention stoppers (17 and 18) abut against each other, thereby preventing rotation of the first bracket (3) and the second bracket (4) in the locking direction and a backlash therebetween. The lock shaft (12) comes into contact with both a first side face (21) and a second side face (22), and a pair of tangents (25 and 26) to the lock shaft (12) are set to form a wedge (27), so that rotation of the first bracket (3) and the second bracket (4) in the locking direction and the opposite direction is prevented without backlash.

Abstract: A gear mechanism (1), in particular coaxial gear mechanism, having a housing with a fixedly arranged toothing (3), a tooth carrier (5) rotatable about a gear mechanism axis relative to the housing and guides (7), teeth (9), which are received in the guides (7) for engagement with the toothing (3), wherein the teeth (9) are mounted in the guides (7) so as to be displaceable in the direction of their longitudinal axis relative to the tooth carrier (5), a cam disk (13) rotatable about the gear mechanism axis (11) and intended to drive the teeth (9) along the respective longitudinal axis of the teeth (9), and a bearing row (35, 37) between the tooth carrier (5) and the housing for mounting the tooth carrier in the housing, wherein the bearing row (35, 37) includes axial rolling bodies, the axes of rotation of which are aligned perpendicularly in relation to the gear mechanism axis (11), and radial rolling bodies, the axes of rotation of which are aligned parallel to the gear mechanism axis (11).