Abstract: Disclosed herein is an apparatus and method for measuring the center of gravity of slabs. The apparatus for measuring the center of gravity of slabs includes a main system, a gravity center measurement system, and an unmanned crane. The main system provides information about the dimensions and/or weight of each of a plurality of slabs loaded in a vehicle. The gravity center measurement system includes a photographing unit for photographing the loaded slabs to be moved, a driving unit for moving the photographing unit up and down, and a control unit for calculating the center of gravity and grip position of all of the slabs, to be moved each time, based on information about a position and configuration of each of the slabs from the photographing unit and the information about the dimensions and/or weight of each of the slabs from the main system. The unmanned crane grips and moves the slabs according to the grip position information calculated by the gravity center measurement system.

Abstract: A cylinder sleeve surface measurement assembly for measuring a surface roughness of a cylinder sleeve, especially a cylinder sleeve formed in an engine block. The assembly includes a fixture that holds a surface profiling device. The surface profiling device is provided with a stylus that perpendicularly projects from a measuring arm, and the fixture holds the surface profiling device such that the stylus remains in perpendicular contact with the surface of the cylinder sleeve. To ensure perpendicular contact, the fixture is provided with an arcuate surface that defines an arc matching that of a portion of the cylinder sleeve. Accordingly, the arcuate surface allows the measuring arm to remain parallel to a surface of the cylinder sleeve, thereby ensuring that the stylus remains perpendicular thereto.

Abstract: A method for identifying a defect such as a crack on a turbine rotor blade while the blade is in operation within a gas turbine engine, the method includes scanning the blade using an IR camera, identifying a leading edge or other line on the blade for a reference point, identifying a potential defect candidate on the blade by comparing the potential defect to a surrounding neighborhood in order to determine if the potential defect is an anomaly, and if the potential defect is an anomaly determine the structure of the anomaly in order to determine if the defect is a crack or a hole or a TBC spallation. The method computes a probability density for sub-regions in an image of the blade, conditioned upon the areas surrounding the sub-regions.

Abstract: A sensor for measuring gas pressure in a gas turbine engine. The sensor is positioned to receive pressurized gas and measure the pressure. A thermally insulating material mounts the sensor spaced from conductive portions of the engine. A heater is mounted on a plurality of sides of the sensor to provide heat thereto. A thermal blanket covers the heater to prevent loss of sensor heat.

Abstract: An output correction apparatus that corrects offset drift of a cylinder internal pressure sensor, and a cylinder internal pressure detection apparatus that accurately detects cylinder internal pressure of an internal combustion engine through use of the output correction apparatus. The cylinder internal pressure detection apparatus includes a detection circuit section which detects a change in the resistance of a piezoresistor element as an electrical signal; an amplification circuit section which amplifies and outputs the electrical signal (output value); and a correction circuit section which corrects the output value. The correction circuit section includes a reset control section which resets the output value of the amplification circuit section to a reference value, and a reset timing detection section which determines a timing of the resetting.

Abstract: A pressure-compensation unit, particularly for a tank-pressure sensor in a tank of a motor vehicle. The pressure-compensation unit includes a housing lid and a gas-permeable filter diaphragm, which covers an air hole. The pressure-compensation unit includes a cap-shaped cover element, which covers the filter diaphragm.

Abstract: When a wastegate valve, which opens and closes an exhaust bypass passage bypassing an exhaust turbine, is open, exhaust gases of respective cylinders bypass the exhaust turbine and pass a sensing point of an air-fuel ratio sensor downstream of the exhaust turbine. Accordingly, the exhaust gases of the respective cylinders can be avoided from being mixed by the exhaust turbine, so an influence of an inter-cylinder variation in an air-fuel ratio due to an inter-cylinder imbalance abnormality becomes apt to appear in an output waveform of the air-fuel ratio sensor. Therefore, existence or nonexistence of the inter-cylinder imbalance abnormality is determined based on the output of the air-fuel ratio sensor when the wastegate valve is open. Eventually, the existence or nonexistence of the inter-cylinder imbalance abnormality can be determined accurately, thereby improving detection accuracy of the inter-cylinder imbalance abnormality.

Abstract: A tire test system for tire tests under the most realistic conditions possible, however, including the possibility of widely-varied, simple and precisely reproducible parameters includes a track (6) contactable by at least one tire, as well as a positive guide (5) following this track, for example, in the form of at least one rail. In addition, a test trolley (2) is provided that is guided by a positive guide (5) and is autonomously driven and/or brakable independently of the tire(s), on which trolley at least one tire (1) is mountable, and which has equipment for driving and/or braking autonomously and independently of the test trolley (2).

Abstract: Partial Stroke Testing (PST) equipment and methodologies provide PST data for an electromechanical valve, wherein power is withheld from the valve to trigger the vale to move away from a fully open position and power is subsequently applied to reinstate the fully open position immediately following detecting that the test valve has moved away from the fully open position. These operations are performed and monitored to determine whether they are completed within a prescribed period of time and associated data is generated that indicates a health of the valve subjected to the PST.

Abstract: The invention is the use of a number of barometric pressure sensors roughly surrounding one or more target location or locations for which wind is being predicted. Based on a historical relationship between the observed pressures at the sensors and the observed wind at the target locations, the prediction of winds a few seconds into the future is possible. It is anticipated that these pressure observations used to train the prediction engine may be supplemented with some other local data such as area wind direction, temperature, and time of day. Further, in some applications the training of the prediction engine may be only prior to its use, while in other applications, the training may be updating the prediction engine while the instrument is operating. In the specification, a theoretical foundation for the pressure/wind relationship is explored for signal magnitudes.

Abstract: A probe includes a stem having a tip that measures a wake produced by an object moving through a fluid. The probe includes temperature and pressure sensors co-located in the tip.

Abstract: Devices, systems and methods for measuring infant feeding performance. The device includes a body portion, a pressure sensor and an integrated circuit. The body portion includes a first end for receiving a fluid, a second end mateable with a feeding nipple, and a conduit in fluid communication with the first and second ends. The pressure sensor is disposed in the body portion, is in contact with the fluid in the conduit, and generates a signal representing a pressure of the fluid passing through the conduit during a feeding session. The integrated circuit is disposed in the body portion and is electrically connected to the pressure sensor. The integrated circuit receives the pressure signal and determines a feeding factor over the feeding session indicative of the infant feeding performance.

Abstract: A constant temperature anemometer is disclosed. The anemometer includes electrically conductive pins including a first set of pins and a second set of pins. A conductor is coupled to the electrically coupled pins. A current source is configured to provide a current through the conductor between the first set of pins. A voltage sensor is configured to measure the voltage across the conductor between the second set of pins. The current source and voltage sensor are configured to maintain a constant resistance of the conductor between the first set of pins.

Abstract: Capillary depth gauge (1) including at least one capillary tube (2) of triangular section arranged against a background (3) opposite an observation surface (5) and visible by transparency from the observation surface when the tubular section is substantially filled with water, at least one reflection surface (4), visible by reflection from said observation surface when the tubular section is substantially filled with air, said tube forming an isosceles triangle whose equal angles (?) have an angular value of between 48 and 60 degrees.

Abstract: The present invention provides a temperature and humidity measuring and recording device deployed on substrate for measuring and recording temperature and humidity of the interior of any station for reticles and of any SMIF POD. The temperature and humidity measuring and recording device comprises a substrate with a first surface and a second surface opposite to the first surface on another side of the substrate, a first measurement unit embedded in and fixed to the first surface of the substrate for measuring the temperature and humidity of the surrounding environment, and a second measurement unit embedded in and fixed to the second surface of the substrate for measuring the temperature and humidity of the interior between the substrate and the pellicle film.

Abstract: An integrated microelectromechanical structure is provided with: a die, having a substrate and a frame, defining inside it a detection region and having a first side extending along a first axis; a driving mass, anchored to the substrate, set in the detection region, and designed to be rotated in a plane with a movement of actuation about a vertical axis; and a first pair and a second pair of first sensing masses, suspended inside the driving mass via elastic supporting elements so as to be fixed with respect thereto in the movement of actuation and so as to perform a detection movement of rotation out of the plane in response to a first angular velocity; wherein the first sensing masses of the first pair and the first sensing masses of the second pair are aligned in respective directions, having non-zero inclinations of opposite sign with respect to the first axis.

Abstract: A semiconductor dynamic quantity sensor has a substrate including a semiconductor substrate, an insulation layer on a main surface of the semiconductor substrate, and a semiconductor layer on the insulation layer. The main surface has a projection that is trapezoidal or triangular in cross section. The semiconductor layer is divided by a through hole into a movable portion. A tip of the projection is located directly below the movable portion and spaced from the movable portion by a predetermined distance in a thickness direction of the substrate. A width of the tip of the projection is less than a width of the movable portion in a planar direction of the substrate. The distance between the tip of the projection and the movable portion is equal to a thickness of the insulation layer.

Abstract: The invention provides a method of measuring an acceleration by means of a vibrating accelerometer including a piezoelectric vibrating cell, the method having the steps: of exciting the vibration cell by means of an excitation signal at a resonant frequency of the vibrating cell; of calculating an acceleration value from a detection signal that results from the excitation signal; of exciting the vibrating cell with a correction excitation signal at a correction frequency that is different from the resonant frequency; of extracting a correction signal from the detection signal, the correction being representative of an electrical characteristic that is to be corrected; and of combining the correction signal with the detection signal so as to reduce the electrical characteristic that is to be corrected.

Abstract: A device (96) includes a microelectromechanical (MEMS) sensor (40). The sensor (40) includes a movable element (42) adapted for motion in a direction (44) and an anchor (46) coupled to a substrate (48). The MEMS sensor (40) further includes spring members (50) interconnected between the movable element (42) and the anchor (46). Each of the spring members (50) includes beams (56, 58, 60) arranged in substantially parallel alignment, with the beam (60) positioned between the other beams (56, 58). Each of the beams (56, 58) is coupled to the anchor (46) and the beam (60) is coupled to the movable element (42). Each of the spring members (50) further includes a support structure (64) joined with the beams (56, 58) to provide vertical stiffness to the beams (56, 58) of the spring member (50).

Abstract: An acceleration sensor includes first and second opposed electrode units. The first opposed electrode unit includes a first electrode and a second electrode spaced away from and facing the first electrode, and provides a first capacitance. The second opposed electrode unit includes a third electrode and a fourth electrode spaced away from and facing the third electrode, and provides a second capacitance. The first and third electrodes are arranged along a first direction. A component of acceleration along the first direction applied to the object is detected based on the first and second capacitances. A control voltage is applied to the first and second opposed electrode units. The control voltage is changed when both of the first capacitance and the second capacitance simultaneously increase or decrease. This acceleration sensor detects the acceleration accurately.

Abstract: A accelerometer includes a substrate define a stationary electrode thereon, a first moveable mass defining a conductive-layer thereon facing the stationary electrode, a plurality of first elastic elements coupled with a peripheral side of the first moveable mass, a first fixed element surrounding the first moveable mass and fixedly attached to the substrate, a plurality of first fixed electrodes extending outwardly from the first fixed element, a second moveable mass surrounding the first fixed electrodes, a plurality of first moveable electrodes extending inwardly from the second moveable mass toward the first fixed element and parallel to the first fixed electrodes, respectively, a plurality of second elastic elements coupled with a peripheral side of the second moveable mass, and a second fixed element surrounding the second moveable mass and fixedly attached to the substrate.

Abstract: It is an object of the invention to provide an agitation method for sufficiently agitating a mixture of a solution such as a buffer solution and a material to be detected, with no need of any dedicated unit for agitation, for measurements using a quartz crystal oscillator. The method for agitating a liquefied material using a quartz crystal oscillator in vibrating the quartz crystal oscillator at a given frequency and measuring the variation of the frequency due to a substance in contact with the quartz crystal oscillator, is that the quartz crystal oscillator is vibrated at other frequency different from the given frequency and equal to or higher than the fundamental vibration frequency to agitate a liquid containing the substance.

Abstract: An ultrasonic testing equipment includes a linear array ultrasonic probe in which a plurality of transducers are arranged in a direction orthogonal to the rolling direction of a test object and a signal processing unit. The signal processing unit executes following (1) to (6). (1) Generating an aperture synthetic image of testing signals of each section of the test object. (2) Generating a maximum value distribution of testing signals in the arrangement direction of transducers. (3) Calculating the width of a defect in each section based on the maximum value distribution. (4) Generating a maximum value distribution of the testing signals in the rolling direction based on the maximum value distribution of a plurality of sections of the test object. (5) Calculating the length of the defect based on the maximum value distribution of the testing signals in the rolling direction. (6) Calculating the area of the defect based on the calculated defect length and the calculated defect width of each section.

Abstract: A method for manufacturing an ultrasonic transducer for use in a fluid medium is described. The ultrasonic transducer includes at least one transducer core having at least one acoustic-electric transducer element. The ultrasonic transducer furthermore includes at least one housing which at least partially surrounds the transducer core and which has at least one opening facing the fluid medium. In the method, at least one sealing film is stretched and connected to the housing in the stretched state in such a way that the sealing film at least partially seals the opening.

Abstract: There is provided an ultrasonic inspection apparatus which detects various deviations with respect to an ideal scanning position and achieves, with high accuracy, an ultrasound flaw inspection by autonomously adjusting the deviations. The ultrasonic inspection apparatus according to the present invention is provided with an integrated type ultrasound transducer including an ultrasonic transducer, an integral type ultrasound transducer control unit, an actuator for distance adjustment, an actuator for tilt control, and a distance measuring sensor. The integrated type ultrasound transducer calculates a deviation between a scanning position based on a preliminarily generated scanning path information and an ideal scanning position, and performs a deviation correction processing by autonomously controlling a distance and a tilt between an opening surface of the ultrasound transducer and an inspection region of an object to be inspected in accordance with this deviation.

Abstract: The elastic wave measurement apparatus, when a high-frequency burst signal is input to the first ball SAW device, an input destination of the high-frequency burst signal is switched in sequence to another one of the ball SAW devices before a detection time at which an output signal from the first ball SAW device is detected, and at and after the detection time, output signals of the response characteristics of those ball SAW devices from the first ball SAW device to the last ball SAW device are detected in sequence.

Abstract: A fuel cell system may include a fuel cell stack, a manifold in fluid communication with the stack, and a pressure sensor. The pressure sensor may include a housing defining a chamber in fluid communication with the manifold, a pressure sensing element disposed within the chamber, and a heating element disposed within the chamber.

Abstract: A pressure or force sensor has a sensor housing, a measuring element in the housing, and a sensor membrane. The membrane is delimited by an inner edge and an outer edge, which is connected in a pressure-resistant manner to the sensor housing. The inner edge transitions in a pressure-resistant manner into a movable plunger, the travel of which can be detected by the measuring element. The membrane has one or more elastic regions between the outer edge and the inner edge, each region having a thinnest point, wherein the material thickness inside the elastic region increases steadily on both sides of this thinnest point. The cross-section of the membrane has an arched shape in each elastic region, and the arched shape has a convex outer and concave inner contour relative to the arch orientation.

Abstract: Disclosed is an apparatus and methodology for detecting contact within a monitored area. A piezoelectric sensor (40) is attached to one end of detector (100), which is positioned, for contact by passing items or individuals. The detector may correspond to plurality of parallel, rubber calendared cable or strip (12, 14, 16, 18, 20) of polycarbonate resin. Body deformations induced into the detector upon contact travel to piezoelectric sensor and detect as strain coupled to the piezoelectric sensor. The apparatus and methodology may be employed to detect vehicular traffic along travel paths, human contact with walls or floors, manufactured product with delivery system or any physical contact by animate or inanimate objects or individuals.

Abstract: A method for steadying an aircraft using jack props, in which: a number and location of the props to be used is determined as a function of an area of operation, on the basis of a prop map; strain gauges arranged on the structure of the aircraft are used; predetermined props that are to be used are fitted; the strains measured by at least one strain gauge situated in the operating zone are checked; and the load applied by at least one prop positioned in the operating zone is regulated according to the strains measured by the gauge and so as to minimize the strains. A steadying device can implement the method.

Abstract: A method and testing apparatus including first and second load adjusting mechanisms for cyclically applying and reducing first and second tensile loads on a specimen and first and second controllers connected to the first and second load adjusting mechanisms for independently cycling the loads which are additive. Cycling the first and second loads for peak loading and over-peak loading the specimen respectively and controlling first and second loading rates and first and second dwell periods of first and second cycles for peak loading and over-peak loading respectively. The second load adjusting mechanism may include an inflatable over-peak device resting on a plate mounted to a frame of the apparatus. The device includes a hollow housing for supporting the second load, an inflatable bladder within the housing, and a bladder lower portion extending out of an opening at a bottom of the housing when the bladder is inflated.

Abstract: A device for proof loading wooden boards including a deformer (9) for deforming the boards (2) which is designed to cause the boards (2) to elongate along their main direction of extension, said deformer including first and second feeders (3), (4) positioned at a first and a second segment (5), (6) of a feed path along which the boards (2) are fed parallel with their main direction of extension, and being able to apply a longitudinal tractive force on the boards (2) using the first and the second feeders (3), (4). A method for proof loading wooden boards is also disclosed, which can be implemented without interrupting board feed along its feed path.

Abstract: An oscillation circuit has an oscillator having a resonant frequency, an amplifier connected to the oscillator, an energizing pulse generator for generating a energizing pulse within a certain range including the resonant frequency, a switching unit for switching between connection and disconnection of the energizing pulse generator and the oscillator, and the amplifier, and a motion command unit for sending a command signal to the energizing pulse generator for starting operation, in which the switching unit connects the oscillator and the energizing pulse generator during a cycle, a half cycle, or several cycles of the energizing pulse generated by the energizing pulse generator starting at a time when the motion command unit sends the motion signal.

Abstract: An acoustic matching member is fitted to a main body in a pair of ultrasonic transmitter/receivers. The acoustic matching member includes a matching member equipped with a porous body adhered tightly to an acoustic-wave emission surface of the main body. A dense layer is stacked on a surface of the porous body and includes a thermosetting resin and first flowability-diminishing particles. A sidewall member is adhered tightly to the acoustic-wave emission surface and an end face of the porous body.

Abstract: A portable torque measurement and notification system, including a torque applying device to apply torque to an object, the torque applying device having a handle and a gripping end, the torque applying device including one or more strain gages disposed on the handle to produce one or more strain measurements of the handle during the application of the torque; an electronic circuit disposed about the handle to receive the one or more strain measurements, to convert the strain measurements to one or more torque measurements, and to transmit the one or more torque measurements by a wireless communications standard; a power unit to power the strain gages and electronic circuit; and a wireless device operable to communicate with the torque applying device, the wireless device having a database to store a target torque value and to receive the transmitted one or more torque measurements, and to produce a notifier.

Abstract: A side impact detection system includes a two-stage load transmitting structure that transmits to a floor tunnel, in which a side impact-detecting G sensor is provided, load caused by a side impact at a predetermined impact speed Vp in two stages having a predetermined time lag in such a manner that the load transmitted or the rate of change in the load differs between the first-stage load transmission and the second-stage load transmission.

Abstract: Disclosed is a fluid sampling device comprising a housing arranged to be freely rotatable under the influence of a fluid and comprising an opening for channeling the fluid through the housing such that the fluid contacts a particular portion of a sampling medium corresponding to a relative angular position of the housing.

Abstract: The present invention relates to a device and method for separation of proteins and other biomolecules. A preferred use is for sample preparation of crude as well as pre-fractionated samples. In a preferred embodiment, the device of the present invention is a pipette tip having dual channels, one for inlet of sample and one for outlet. The outlet, but not the inlet, channel is provided with sample separation media for separation of a desired biomolecule from a sample. The flow through the sample separation media is unidirectional.

Abstract: A blood transfer assembly comprises of a standard Luer lock style syringe that has a needle and a protective cap in place. The assembly further comprises a blood transfer guide housing that contains a first optional set of barbs that holds the cylindrical end of the syringe. A second set of barbs rigidly hold the needle and prevent the needle being withdrawn from the guide. As the syringe is inserted into the guide the protective cap will pass through the first and second set of barbs until the syringe and the guide come in mechanical contact with each other forming a single assembly.

Abstract: A method and apparatus to simulate a flow of products from a real fire without reproducing a thermal environment associated with the real fire includes the release of a gas or a mixture of gases with an appropriate density less than air to simulate smoke movement from real fire sources. The buoyant inert gas may be helium. In some embodiments, the buoyant gas is combined with artificial smoke, such as a tracer gas or an inert dye (e.g., a particulate) to provide a visual representation of the location and flow characteristics of the surrogate smoke that is released from a release apparatus. In another embodiment, optical techniques that show differences in gas density are used to visualize the movement of the buoyant gas. The release apparatus includes a control system that follows a prescribed time-dependent flow rate to simulate different fire source configurations and growth rates.

Abstract: For achievement of a reduction in size, a slider unit comprises a mounting base 1, a rail 2 fixed to a mounting face 1a of the mounting base 1, a slide table 3 moving along the rail, position detection means for detecting the position of the slide table 3, and a driving system for moving the slide table 3. The mounting face 1a of the mounting base 1 has a mounting recess 14 formed therein. A sensor board 16 on which a Hall element 16a is mounted is installed in the mounting recess 14. The slide table 3 has a permanent magnet 19 attached to the face thereof facing the mounting face 1a. The permanent magnet 19 and the Hall elements 16a form the position detection means.

Abstract: A safety release mechanism for a linear actuator having a lead screw and a telescopic tube includes a nut, a protection shroud, a sleeve connected to the telescopic tube, a clutching element and a spiral spring. The nut is threadedly and drivingly connected to the lead screw. The protection shroud is fixedly and drivingly connected to one side of the nut. One end of the sleeve is sheathed on the protection shroud while the other end thereof is fixedly connected to the telescopic tube. The outer periphery of the sleeve is formed with notches. The clutching element is sheathed on the sleeve and formed with protrusions configured to be selectively inserted into or removed from the notches. The spiral spring is sheathed on the protection shroud and the clutching element. With this arrangement, cleavage or damage of components can be prevented to thereby increase the safety of operation.

Abstract: An operating device for a gear-changing transmission operated by shift-by-wire is disclosed. The operating device includes an operating element, rotatably or pivotally supported in a bearing position having a position sensor device, and a device for producing force-feedback. The force-feedback device includes an adjustable counterforce element acting on the operating element, wherein the counterforce element comprises a fluid having controllably variable viscosity. The operating device including the counterforce element is produced by a bearing gap of the bearing position of the operating element, with the bearing gap being filled with the fluid. A space-saving integration of the counterforce element of a force-feedback device is enabled into the joint of an operating lever. Thus, the cost, structural complexity, and installation space required for an operating device having force-feedback is significantly reduced. The haptics of a mechanical operating lever can be realistically emulated.

Abstract: A shifting device is provided for a vehicle transmission with a selector lever pivotable within a shifting device housing about at least one axis of rotation for selecting gears defined within the vehicle transmission. A shift position of the selector lever is assigned to at least one gear. A locking device for the individual shift positions of the selector lever can be released as a function of given general data of the state of motor vehicle components such as the pedal mechanism and the engine. The locking device has a locking element displaceable by the selector lever analogously to the individual shift positions of the selector lever. The locking element has a plurality of locking devices, which correspond to the individual shift positions and which can be brought into a locking position and an unlocking position by at least one actuating device.

Abstract: A tool adapted to prevent a shifter shaft from moving relative to a shifter housing includes an elongated member having a first side, a second side substantially opposite the first side, and a third side disposed between the first and second sides, wherein the elongated member is disposed at least partially parallel to the shifter shaft and is adapted to be secured to the shifter housing. A first side member is disposed on the first side of the elongated member, a second side member is disposed on the second side of the elongated member, and a collar is disposed on the third side of the elongated member, wherein the collar is adapted to secure to the shifter shaft. The first side member and second side member prevent the shifter shaft from moving in a first direction and the elongated member prevents the shifter shaft from moving in a second direction.

Abstract: An actuating device for selection on shift steps of a gear changing transmission. The actuating device comprises a flexible gear selection device (1) with at least two drive step positions, a park lock position and an additional park lock-actuating device (4) for activation of the park lock. When the gear selector device (1) moves out of the park lock position, the gear selector device (1) becomes disengaged while movement of the gear selector device (1) from one of the drive step positions into the park lock position, or beyond the previous park lock position, does not engage the park lock. Engagement of the park lock is only achieved by actuating the additional park lock-actuating device (4). This improves the safety and provides intuitive shifting between the different drive step positions without the need to view the gear selector device. The unintended engagement of the park lock is precluded.

Abstract: The gearbox comprises a case, a stationary rod supported by the case, a gear selector fork mounted slidably on the stationary rod and an end-of-travel bush mounted on the stationary rod so as to provide an axial abutment surface for the gear selector fork. The gear selector fork includes a sheet-metal body forming integrally a pair of support plates each having a respective guide through-hole. One of the guide through-holes is provided with a guide bush formed by means of overmoulding of low-friction plastic and is guided along the stationary rod. The other guide through-hole has no guide bush and is guided along a smaller-diameter portion of the end-of-travel bush.

Abstract: An articulated manipulator includes a base body, a first arm body, a second arm body having a second arm center axis, and a third arm body. A first joint part connects the base body and a first end portion of the first arm body rotatably around a first rotation axis. A second joint part connects a second end portion of the first arm body and a third end portion of the second arm body rotatably around a second rotation axis. A third joint part connects a fourth end portion of the second arm body and a fifth end portion of the third arm body rotatably around the third rotation axis. When the first, second and third arm bodies are all erected with respect to a installation surface, the first rotation axis, the second arm center axis, and the third rotation axis are substantially aligned with each other.

Abstract: A parallel-type displacement device having at least three arms each pivoting about a pivot axis, the pivot axes defining a polygon as seen from a point above the device, wherein each of the arms is actuated by an actuator and each of the arms is further connected to a head defining a small base through linking members respectively articulated on the head and the arm, each said arm and its respective head forming a hinge having two degrees of freedom such that the head always maintains its position and orientation, and in which in a neutral position, each arm is arranged so that, if drawing from the geometrical center of the polygon a straight line that is parallel to the pivot axis of any one of the arms, the straight line intersects that arm.

Abstract: A robot arm assembly includes a middle joint, an upper arm rotatably connected to the middle joint, a driver rotating the upper arm mounted on the middle joint, and a transmission mechanism transferring the power of the driver to the upper arm. The driver includes an output shaft. The transmission mechanism includes a first gear coupled to the output shaft of the driver, a second gear mounted on the outer circumference of the arm, a third gear meshed with the first gear, and a fourth gear coinciding with the third gear and meshed with the second gear.