Abstract: An electric wire shaping apparatus includes a pair of male and female shaping dies and a pressing mechanism. Each of the male and female shaping dies has a shaping surface that includes a plurality of straight parts and a plurality of bent parts. The pressing mechanism moves one of the male and female shaping dies toward the other, thereby pressing a turn portion of an electric wire between the shaping surfaces of the male and female shaping dies in a width-wise direction of the turn portion. Furthermore, the male and female shaping dies are so configured that when they are located closest to each other, a gap W2 between a corresponding pair of the bent parts of the shaping surfaces of the male and female shaping dies is different in size from a gap W1 between a corresponding pair of the straight parts of the shaping surfaces.

Abstract: A specialty tool to aid in twisting of up to six (6) individual wires for a cable assembly is herein disclosed, comprising a series of six (6) parallel channels perpendicular to the fulcrum line of the pliers. Each channel is sized to hold one (1) individual wire, facilitated by a one-way fixture that slightly penetrates the wires insulation thus holding it securely. Once the wires are in the tool, the jaws can be locked together and can be rotated in either direction to twist the wires. This procedure would be used with cable assembly during manufacturing processes.

Abstract: A calibration card 10 and method of using the card 10 to calibrate an optical sensor. The card 10 comprises (i) a first mass of an oxygen sensitive fluorophore 41 configured and arranged for limiting exposure of the first mass of oxygen sensitive fluorophore 41 to near zero % oxygen, and (ii) a second mass of an oxygen sensitive fluorophore 42 configured and arranged for exposing the second mass of fluorophore 42 to an environmental concentration of oxygen.

Abstract: A field olfactometer includes a mixing chamber connected to a mask. A sample flow path is defined through the olfactometer as is a diluent flow path. The sample flow path extends from a sample air inlet to a sample air outlet which is open to the mixing chamber. The diluent flow path extends from a diluent air inlet to a diluent air outlet which is also open to the mixing chamber. The sample flow path and diluent flow path are isolated from one another so that the sample air flowing through the sample flow path and diluent air flowing through the diluent flow path cannot mix until the two streams of air exit their respective flow path and enter the mixing chamber where the two streams mix thoroughly prior to reaching the mask. The diluent flow path includes a filter medium to remove odor-causing chemicals from ambient air drawn through the diluent flow path.

Abstract: A diagnostic system and a diagnostic method for a valve, particularly a closing valve or a control valve, which is actuatable by a drive and is installed in a pipeline. Using a sensor, the pressures in the inlet side of the pipeline are detected and compared with a first reference value in an evaluation device while the valve is closed. The solid-borne sound level is measured using a sensor, and compared with a second reference value in the evaluation device. A signal for displaying leakage exceeding the allowable amount is output if the sound level exceeds the second reference value and if the pressure in the inlet side is smaller than or equal to the first reference value. A characteristic curve field is used to determine the first reference value of the pressure, the parameters thereof being the Kv value and the leakage class of the valve.

Abstract: A probe with antifouling components. The probe includes a sensor for measuring attributes of a fluid such as liquid or gas. The probe includes antifouling components to prevent or inhibit fouling. The antifouling components include material components, antifoulant components such as biocide, scaling inhibitors, etc., and wiper/shutter components that are arranged to collectively prevent or inhibit fouling of the probe or of the sensor included in the probe.

Abstract: Disclosed is a method of investigating the conformation of biomolecules or changes in the conformation of biomolecules as a result of an interaction, in which biomolecules from a sample of biomolecules are adhered discretely to the sensing surface of an acoustic wave sensor operating in a liquid, and a conformation parameter which is related to the conformation of the biomolecules from the said sample which are adhered discretely to the sensing surface, but substantially independent of the resulting change in mass loading of the sensing surface, is calculated from the resulting change in the output signals of the acoustic wave sensor. The conformation parameter may the acoustic ratio or a parameter which is directly related to the acoustic ratio.

Abstract: A scanning probe microscope includes a plate moveable in an x-axis direction, a y-axis direction, and a z-axis direction, and a probe tip coupled to the plate. A plurality of actuators cooperate to move the probe tip with three degrees of freedom of movement.

Abstract: A method of detecting during a combustion cycle a peak value of pressure in a cylinder of an internal combustion engine includes providing and installing on the engine body an accelerometer that generates an acceleration signal representing vibrations of the engine body. The acceleration signal is filtered by comparing the band-pass filtered replica of the acceleration signal to a threshold. When the threshold is surpassed, a pressure peak is detected and flagged.

Abstract: A piezoresistive pressure-measuring plug for a combustion engine. The pressure-measuring plug includes a plug body having a threaded plug body part with an external thread for screwing the plug body into a cylinder of the combustion engine, and a sealing plug body part forming a tip of the plug for providing a seal between the plug body and the combustion engine. The plug body further includes a sensing body part positioned between the threaded plug body part and the sealing plug body part. The sensing body part includes a cylindrical body part, a moving part, and a sensing structure that form a single integral piece. The sensing structure forms a connection between the cylindrical body part and the moving part, and allows the moving part to move relatively to the cylindrical body part along a cylinder axis of the cylindrical body part.

Abstract: A system and/or method for quantifying the presence of one or more components in vehicle exhaust, and more particularly to a non-contact, sampling system and method for quantifying the presence of one or more components in exhaust emissions of commercial and/or heavy-duty vehicles that emit exhaust at an elevated level, under actual operating conditions.

Abstract: The present invention is an apparatus and a method for monitoring a sliding state of a piston ring. The present invention detects a cycle of rotation of a piston ring based on a temperature at a predetermined site of a cylinder liner, and determines a sign of burning of a piston based on a state of the rotation. As a result, it is possible to detect a sign of burning of a piston by an apparatus less expensive than apparatuses using a conventional technique of detecting a capacitance.

Abstract: Disclosed are an apparatus and method for testing braking performance. The apparatus of the disclosed invention comprises: a driving unit which generates power; a test unit driven by the driving unit; and a control unit which controls the operation of a braking apparatus to generate a brake force on the test unit and to check braking performance. The present invention uses a rope unit moving at a speed for inducing a braking operation by the rotation of driving sheaves spaced apart from each other, rather than testing braking performance in an expensive elevator test tower, thereby preventing the possible dangers of tests conducted in said test tower. Further, the present invention controls loading capacity simply by controlling the loads of the driving unit to enable easy testing.

Abstract: The invention relates to a structure and a process for measuring an energy of adhesion between two substrates bonded in a transverse direction. The method involves providing for at least one of the two substrates to have a plurality of elementary test cells within a test layer each being capable of locally applying, in the transverse direction, a preset mechanical stress (?), dependent on the temperature (T), to a bond interface between the substrates in a direction tending to separate them, applying a test temperature to the substrates and identifying debonded regions of the bond interface so that the local adhesion energy at the test temperature in the regions may be deduced therefrom, the local adhesion energy in a region of the bond interface being deduced from the stress applied by the test cells that caused debonding in the region.

Abstract: An apparatus (10) for obtaining fluid samples in a subterranean well (14). The apparatus (10) includes a wireline conveyance (22) and a fluid sampler (12) supported by and positioned with the wireline conveyance (22) in the well (14). The fluid sampler (12) includes an actuator (24) operable to establish a fluid communication path between an exterior and an interior of the fluid sampler (12), a plurality of sampling chambers (26) operable to receive fluid samples therein and a self-contained pressure source (28) in fluid communication with the sampling chambers (26) operable to pressurize the fluid samples obtained in the sampling chambers (26) to a pressure above saturation pressure, thereby preventing phase change degradation for the fluid samples during retrieval of the fluid sampler (12) to the surface.

Abstract: Methods and apparatus to control a formation testing operation based on a mudcake leakage are disclosed. A disclosed example method for use with a downhole tool disposed in a wellbore comprises measuring a property of a mudcake layer at a first location in a wellbore, determining a value representative of an estimated leakage through the mudcake layer based on the property, and determining, based on the value, whether to continue a formation testing operation.

Abstract: Method for assessment of friction properties of fibers or substrate. The method is useful for assessing the degree of damage of hair fibers, for demonstrating the efficacy of a composition for minimizing the friction properties of fibers or substrate and/or for supporting advertising claims.

Abstract: A thermal fluid flow sensor having a diaphragm structure body configured by an insulating film formed by stacking a film having compressive stress and a film having tensile stress on the top and bottom of a temperature-measuring resistive element and a heater resistive element which are processed by microprocessing is provided. The insulating film at a lower layer of the heater resistive element, a temperature-measuring resistive element for heater resistive element, upstream temperature-measuring resistive elements, and downstream temperature-measuring resistive elements, has films having compressive stress (a first insulating film, a third insulating film, and a fifth insulating film) and films having tensile stress (a second insulating film and a fourth insulating film) being alternately arranged, and two layers or more of the films having tensile stress are arranged.

Abstract: A level sensing apparatus and method of use for use with a beverage server to indirectly sense the level of beverage retained in the server. The server having a body for receiving and retaining beverage with an opening in the body for receiving the level sensing apparatus and beverage there through. The level sensing apparatus includes at least one capacitive sensing probe assembly retained in a housing to separate the probe assembly from contact with beverage. The housing containing the capacitive sensing probe assembly being disposable into the opening in the body of the server. The capacitive sensing probe indirectly sensing at least one level of beverage retained in the beverage server. A separate display assembly is provided and selectively couplable to the capacitive sensing probe assembly. A power source is provided and coupled to the display assembly and to the capacitive sensing probe assembly to provide power to sense and display the level of beverage in the server.

Abstract: A capacitive fill level sensor for determining a fill level of a liquid is described. Two electrodes are provided having a plastic sheathing and a capacitance measuring device for detecting the electrical capacitance between the electrodes. An estimator device is used for estimating a fill level of a liquid between the electrodes based on the detected electrical capacitance, taking into account different dielectric constants for sections of the plastic sheathing in the liquid and outside of the liquid.

Abstract: The present invention includes: plural common terminals; plural water level measurement terminals that are arranged at a certain interval along a longitudinal direction; a water level measurement control unit that measures the water level of a measurement subject by letting an electric current flow to the plural common terminals, then reading the state information of an electric current flowing to the plural water level measurement terminals; and an LED unit that reads and displays the water level measurement results through plural LEDs.

Abstract: A balance test indexing tool for use in a balance testing machine to assist a user in testing unbalance in a rotor. The tool includes a rotor mount that is temporarily affixed to the rotor being tested. The tool also includes a rotor mount receiver configured to receive the rotor mount and the rotor in the balance testing machine. The rotor mount and rotor mount receiver are configured to provide an indexing coupling that allows the rotor to be readily indexed to any of a plurality of index positions for unbalance testing in the testing machine. The tool allows multiple balancing runs to be made with relatively little effort needed to re-index the rotor. In some embodiments the tool includes a kinematic coupling that provides highly accurate and repeatable indexing.

Abstract: An inertial sensor capable of making pressure of a space in which an inertial sensor such as an acceleration sensor is placed to be higher than that during a sealing step and improving reliability is provided. The inertial sensor can be achieved by means of making an inertial sensor including a substrate, a movable portion on the substrate, a cap member which seals the movable portion so as to cover the movable portion, wherein a gas-generating material is applied to the movable portion side of the cap.

Abstract: A microgryroscope for determining rotational movements about an x, y or z axis. At least one anchor is fastened to a substrate. A plurality of, in particular four, masses that oscillate radially with respect to the anchor are fastened to the anchor by springs. Drive elements are used to vibrate at least individual ones of the masses in an oscillatory manner in the x or y direction in order to produce Coriolis forces when the substrate is deflected. Sensor elements are used to detect deflections of the masses on account of the Coriolis forces produced. The oscillating masses are connected to at least one additional, non-oscillating mass which can, however, rotate together with the oscillating masses on the substrate about the at least one anchor. A further sensor element is associated with this additional mass.

Abstract: A micromechanical acceleration sensor includes a substrate, an elastic diaphragm which extends parallel to the substrate plane and which is partially connected to the substrate, and which has a surface region which may be deflected perpendicular to the substrate plane, and a seismic mass whose center of gravity is situated outside the plane of the elastic diaphragm. The seismic mass extends at a distance over substrate regions which are situated outside the region of the elastic diaphragm and which include a system composed of multiple electrodes, each of which together with oppositely situated regions of the seismic mass forms a capacitor in a circuit. In its central region the seismic mass is attached to the elastic diaphragm in the surface region of the elastic diaphragm which may be deflected perpendicular to the substrate plane.

Abstract: There is provided an ultrasonic imaging apparatus capable of efficiently generating an image both by using a transmission ultrasonic wave with a wide angle of beam spread and by using a transmission ultrasonic wave with a narrow angle of beam spread. The ultrasonic imaging apparatus includes: a transmission control part controlling transmission timings of a plurality of first piezoelectric elements so as to make a synthesized wave of ultrasonic waves transmitted from the plural first piezoelectric elements match an ultrasonic wave transmitted from a predetermined virtual transmission point; a signal detecting circuit detecting an electric signal corresponding to an ultrasonic echo transmitted from the plural first piezoelectric elements, reflected by an inspection target, and received by a plurality of second piezoelectric elements; and a generating part generating an image corresponding to the inspection target based on the electric signal.

Abstract: An ultrasonic transducer is provided with a distance measuring ultrasonic sensor for detecting a distance between the ultrasonic transducer and a surface of an inspection object and an inclination of the ultrasonic transducer with respect to the surface of the inspection object, to control the distance and the inclination of the ultrasonic transducer with respect to the inspection object based on information detected by the distance measuring ultrasonic sensor, and at least part of ultrasonic wave transmission/reception by the distance measuring ultrasonic sensor is performed during execution of aperture synthesis processing during which transmission/reception by the ultrasonic transducer is not performed.

Abstract: Methods and systems for detecting features in thin-wall structures are provided. A plurality of ultrasonic waves are generated within a thin-wall structure. At least one echo from the plurality of ultrasonic waves within the thin-wall structure is detected. The at least one echo is processed to determine a position of at least one feature in the thin-wall structure based on Embedded Ultrasonic Structure Radar (EUSR) beamforming performed in the frequency domain.

Abstract: A system for simulating a pyrotechnic shock may include an electrical power amplifier, a shaker, and a resonance beam. The electrical power amplifier may be configured to amplify a transient signal waveform representing a desired shock response spectrum (SRS). The shaker may be configured to generate a shock pulse in response to the amplified signal waveform. The resonance beam may be mounted to the shaker and may be configured to magnify the shock pulse.

Abstract: An improved manufacturing process for resonator-based pressure transducers is described. The process is a batch process in which several resonators are shaped simultaneously, using an etching process such as plasma etching. The end pieces are also shaped, if required, for several transducers. The end pieces and resonators are sandwiched together prior to separating the individual transducer units. The individual transducer units are then separated using a cutting process. The described process can be used to manufacture pressure transducers having a substantially smaller size, for example 5-6 mm outer dimensions and 2-3 mm resonators. The outer shape of the transducers can be a non-circular cylindrical shape such as that of a right square prism or an octagonal prism.

Abstract: A very robust sensor element for an absolute-pressure measurement is described, which is suitable for high temperatures and able to be miniaturized to a large extent. The micromechanical pressure-sensor element includes a sensor diaphragm having a rear-side pressure connection and at least one dielectrically insulated piezo resistor for signal acquisition. Furthermore, the pressure-sensor element has a front-side reference volume, which is sealed by a cap structure spanning the sensor diaphragm. The cap structure is realized as thin-film structure.

Abstract: A pressure sensor for sensing a pressure of a process fluid includes a sensor body exposed to the pressure of the process fluid. The sensor body deforms in response to the pressure. A diaphragm suspended from the sensor body has a tension which changes in response to deformation of the sensor body. A resonate frequency of the diaphragm is measured. The measured resonant frequency is indicative of the line pressure of the process fluid and integrity of the isolation fill fluid system. In addition to measuring the resonant frequency, the oscillation mode itself can be used as a diagnostic tool to assess sensor health.

Abstract: The present invention is adapted to prevent a diaphragm from being deformed by a thermal stress caused by thermal expansion coefficients of a sensor main unit and a fixing member and includes a sensor main unit to which a fixed electrode is fixed, a diaphragm structure that forms a sealed space between the diaphragm structure and the sensor main unit and a fixing member that is jointed to the diaphragm structure in a manner of surrounding a pressure receiving part of the diaphragm structure so as to lead a fluid to the pressure receiving part, wherein the diaphragm structure includes a flat plane diaphragm main unit and first and second ring members each having a known thermal expansion coefficient that are respectively provided on both sides of a circumference of the diaphragm main unit.

Abstract: A pressure gauge adapter for sanitary conduit accepts a standard pressure gauge with a male threaded stem. The adapter has a flange to mate with an upper flange of a tubular stub where a diaphragm is positioned to serve as fluid barrier to block process liquid from leaving, and to serve as a seal gland. A hollow cylindrical wall rises from the flange member, with a sealing flange at its upper end. An elongated piston is situated within the hollow cylindrical wall with a lower head upon the lower diaphragm, and an upper head reaching the top end of the cylinder. A cap or dome situated above the cylinder has a flange member that mates with the upper flange member of the cylinder, with an upper diaphragm therebetween. The cap defines a space above the upper diaphragm, and is filled with a transfer liquid. A threaded bore in the cap accepts the threaded stem of the pressure gauge.

Abstract: The measuring method is for measuring a physical parameter using an electronic interface circuit (1) for a capacitive sensor (2) with at least two capacitors (C1X, C2X) whose common electrode (CM) is mobile between the fixed electrodes. The electronic circuit includes an amplifier (4) connected to the common electrode (CM) by a switching unit (3), a logic unit (5) connected to the amplifier for supplying first and second digital measuring signals, and a digital-analogue converter (7) for supplying a measurement voltage (VDAC) to the electrodes on the basis of a conversion of one of the digital signals.

Abstract: The present invention provides elastic constant and visco elastic constant measurement apparatus etc. for measuring in the ROI in living tissues elastic constants such as shear modulus, Poisson's ratio, Lame constants, etc., visco elastic constants such as visco shear modulus, visco Poisson's ratio, visco Lame constants, etc. and density even if there exist another mechanical sources and uncontrollable mechanical sources in the object. The elastic constant and visco elastic constant measurement apparatus is equipped with storage of deformation data measured in the ROI, a calculation of elastic and visco elastic constants by calculating the shear modulus etc. at arbitrary point in the ROI from measured strain tensor data etc., wherein the calculation of the elastic and visco elastic constants numerically determines elastic constants etc. from the first order partial differential equations relating elastic constants etc. and strain tensor etc.

Abstract: A device for measuring the physical characteristics of a flow within a pipe is disclosed. In one exemplary embodiment, the device comprises a hollow ring having an outer wall fixably attached to a meter flange that is inserted between two sections of pipe, and an inner wall on which a sensor is mounted to facilitate accurate flow measurements.

Abstract: The present invention relates to a flow rate sensor 52 which causes a gas 80 included in a liquid 81 to travel in a piping 56, and which measures a flow speed of a sample by detecting the gas 80. The flow rate sensor 52 is configured to maintain a contact area of the gas with respect to the piping 56 at constant or at substantially constant.

Abstract: An apparatus for use in determining a plurality of characteristics of a multiphase flow within a pipe is disclosed. In one exemplary embodiment, the apparatus comprises first and second constrictions, a sheltered zone between the first and second constrictions, a sensing device coupled to an interior wall of the pipe, and a sheltered device coupled to the interior wall of the pipe and located within the sheltered zone. A first characteristic of the plurality of characteristics is determinable from data generated by the sensing device. A second characteristic of the plurality of characteristics is determinable from data generated by the sheltered device. In one exemplary embodiment, the first characteristic is a gas fraction, and the sensing device is a plurality of pressure sensors. In another exemplary embodiment, the second characteristic is a phase fraction, and the sheltered device is a plurality of electrical impedance spectroscopy (EIS) electrodes.

Abstract: There are provided an apparatus and method for groundwater sampling, using a hydraulic coupler according to the present invention. In more particular, in the groundwater sampler which is positioned at multiple depths within a groundwater borehole to simultaneously take groundwater samples at the multiple depths, couplers are each connected to both ends of a water sampling pipe made of a metal pipe material. In case of positioning the sampler at a targeted depth, a socket and a plug forming each coupler are connected to each other, so that the both ends of the water sampling pipe—to lead groundwater to freely flow in/out. Thereafter, at the targeted depth, the sockets or plugs are permitted to be separated in the couplers at the both ends of the water sampling pipe by using a lift device, so that the both ends of the water sampling pipe are sealed to simultaneously taking groundwater samples at multiple depths.

Abstract: A portal, system and method for screening an object for a target substance is provided. The portal includes an inflatable bladder expandable to form a test space for receiving the object and a plurality of nozzles positioned about the inflatable bladder. The nozzles are in fluid communication with a fluid source for directing air over the object whereby samples are removed from the object for examination. A collector is operatively connected to the inflatable bladder for collecting the samples removed from the object. A detector is operatively connected to the collector for examining the removed samples for the presence of the target substance. At least one preconcentrator may be operatively connected to the collector for concentrating the samples collected thereby.

Abstract: A soil-cement sampling device and method of sampling soil-cement is provided. The soil-cement sampling device may include an inner tube arranged within an outer tube. The inner tube may be removably connected to the outer tube and may be split into two longitudinal sections removably connected to each other. The inner and outer tubes may be inserted into a recently mixed soil-cement mixture before it hardens and a sample of the soil-cement mixture may be collected in the inner tube after it hardens. Once the sample hardens, the inner tube may be removed from the outer tube and the longitudinal sections may be separated to expose the soil-cement sample for inspection and testing.

Abstract: An apparatus and method for rotating glass containers and like wares for purposes of inspection is disclosed that uses a compact, modular apparatus which has a drive system that automatically accelerates the wares to full rotation speed while applying only the amount of contact force to the wares that is required to rotate them. The apparatus of the present invention is compact and thus consumes minimal volume in the area near the glass container being rotated. The apparatus for rotating glass containers of the present invention has an outstanding ability to move quickly into contact with a glass container and accelerate it to its full speed without damaging it or being damaged by it, and presents a low degree of impact to glass containers.

Abstract: A system for cover screw float detection. The system includes a drive cradle coupled to a structure. The system also includes a moveable portion coupled to the structure. The system further includes a sensor coupled to said structure. The system additionally includes another sensor coupled to the moveable portion. Spatial separation between the another sensor and the sensor when the moveable portion is oriented in a screw float check position indicates presence of cover screw float in a disk drive disposed in the drive cradle.

Abstract: Disclosed is a rack bush and a rack pinion type steering apparatus having the rack bush for a vehicle, which can smoothly support a load in an axial direction and a vertical direction of a rack bar so that it is possible to reduce abnormal abrasion of the rack bush, reduce a rattle noise caused by external force transferred through the rack bar during movement of the rack bar, and prevent damage to the rack bar and a pinion through distribution of the load due to an external impact on the shaft.

Abstract: A transmission mechanism with a pair of selectively engageable clutch systems has an upstream gear ratio and a downstream gear ratio that combine to provide an effective gear ratio. A different clutch drive member is associated with an input side of each of the pair of clutch systems. The clutch drive members are driven for rotation by an engine input member. The upstream gear ratio is determined by the gear ratio between the engine input member and one of the clutch drive members. Output sides of each of the clutch systems drive an associated one of a pair of non-coaxial layshafts. Pinions are located on and selectively driven by the layshafts. A countershaft is spaced from both of the layshafts, and has a plurality of gears. Each of the gears is driven for rotation by one of the pinions of the layshafts. The downstream gear ratio is determined by the gear ratio between the selected pinion and the intermeshed gear.

Abstract: The control apparatus comprises, in its version intended for a double-clutch transmission with six or seven forward gears and one reverse gear, a first shift fork for engaging the first gear or the third gear, respectively, a second shift fork for engaging the reverse gear or the fifth gear, respectively, a first hydraulic actuator arranged to control the movement of the first shift fork, a second hydraulic actuator arranged to control the movement of the second shift fork, a selection slide valve which can be moved into a first operating position in which the first hydraulic actuator is selected and a second operating position in which the second hydraulic actuator is selected, a pilot solenoid valve for controlling the movement of the slide valve between the first and second operating positions, and first and second gear shift solenoid valves for controlling the supply of fluid to the hydraulic actuator each time selected by the slide valve or the connection of said actuator with a tank.

Abstract: Hydraulic control systems for a dual clutch transmission include a regulated source of pressurized hydraulic fluid including an electric pump, a filter and an accumulator, a pair of pressure control valves and a branching hydraulic circuit including pressure or flow control valves, spool or logic valves and two position valves which collectively supply and exhaust hydraulic fluid from a plurality of shift actuators. The actuators are connected to shift rails which include shift forks and are slidable to engage synchronizers and positive clutches associated with the various gear ratios.

Abstract: An output power transmission device has a transmission plate and a C-ring. The transmission plate is attached to a wheel gear in an axial direction of the wheel gear such that the transmission plate directly engages with the wheel gear in a rotation direction. The transmission plate functions as a transmission member for transmitting rotation of the wheel gear to an output shaft. The C-ring is provided at a position where the C-ring sandwiches the transmission plate with the wheel gear in the axial direction. The C-ring functions as a restriction section for restricting movement of the transmission plate in the axial direction opposite from the wheel gear side. An elastic claw section as a pressing member is formed on the wheel gear. The elastic claw section presses the transmission plate against the C-ring in the axial direction.

Abstract: A robot arm assembly includes a first robot arm and a second robot arm rotatably connected to the first robot arm. The first robot arm includes a first sleeve, a first input shaft, and a second input shaft. The first input shaft and the second input shaft are seated in the first sleeve. The second robot arm includes a second sleeve and an output shaft received in the second sleeve. The first input shaft is connected to the second sleeve via a pair of bevel gears, and drives the second sleeve to rotate relative to the first sleeve. The second input shaft is connected to the output shaft via at least two pairs of bevel gears, and drives the output shaft to rotate relative to the second sleeve.