Abstract: An inspection device includes a processor configured to calculate an identification index indicating likelihood of each possible state of an object to be inspected regarding a predetermined inspection item by inputting a color image representing the object and a depth image representing the object into a classifier, and determine the state of the object regarding the inspection item, based on the identification index. The classifier calculates a first feature characterizing the object, based on the inputted color image; calculates a second feature characterizing the object, based on the inputted depth image; integrates the first feature and the second feature to calculate an integrated feature; and calculates the identification index, based on the integrated feature.

Abstract: An inspection device includes a processor configured to calculate a first identification index indicating likelihood of each possible state of an object to be inspected regarding a predetermined inspection item by inputting a color image representing the object into a first classifier, the color image being generated by a camera, calculate a second identification index indicating likelihood of each possible state of the object regarding the predetermined inspection item by inputting a depth image representing, for each pixel, the distance to a part of the object represented in the pixel into a second classifier, the depth image being generated by a 3-D camera, and determine the state of the object regarding the inspection item, based on the result of integration of the first identification index and the second identification index.

Abstract: A photoelectric sensor including a light emitter and a light receiver is provided. The light emitter includes a light emitting unit configured to emit a light beam, and a power supply circuit configured to receive supply of electric power through a first power supply line leading to an outside of the light emitter and to supply required electric power to the light emitting unit. The light receiver includes: a first switching element, the first switching element serving to output a first output signal; a second switching element serving to output a second output signal; and a detection circuit. A third power supply line is provided such that one end of the third power supply line is electrically connected to the first power supply line inside the light emitter, and the other end is electrically connected to the second power supply line outside the light receiver.

Abstract: A photoelectric sensor including a light emitter and a light receiver is provided. The light emitter includes a light emitting unit configured to emit a light beam, and a power supply circuit configured to receive supply of electric power through a first power supply line leading to an outside of the light emitter and to supply required electric power to the light emitting unit. The light receiver includes: a first switching element, the first switching element serving to output a first output signal; a second switching element serving to output a second output signal; and a detection circuit. A third power supply line is provided such that one end of the third power supply line is electrically connected to the first power supply line inside the light emitter, and the other end is electrically connected to the second power supply line outside the light receiver.

Abstract: It is possible to, with a position measuring apparatus in a NC machine tool, a NC lathe, or the like that uses a load monitoring scheme, significantly reduce a response delay on the detecting jig side than those in the conventional apparatuses, and consequently measure the position of a measurement target with high accuracy. A measurement target (e.g., an advanceable and retractable center) is caused to abut a position detecting jig at the advanced end of the measurement target. In such a state, retracting and advancing motions of the measurement target are created to increase the load torque of a feed motor to a level sufficiently higher than the load torque that is detectable by the apparatus. After that, the abutment state between the measurement target (center) and the jig is canceled to cause a sudden drop in the load torque of the feed motor.

Abstract: It is possible to, with a position measuring apparatus in a NC machine tool, a NC lathe, or the like that uses a load monitoring scheme, significantly reduce a response delay on the detecting jig side than those in the conventional apparatuses, and consequently measure the position of a measurement target with high accuracy. A measurement target (e.g., an advanceable and retractable center) is caused to abut a position detecting jig at the advanced end of the measurement target. In such a state, retracting and advancing motions of the measurement target are created to increase the load torque of a feed motor to a level sufficiently higher than the load torque that is detectable by the apparatus. After that, the abutment state between the measurement target (center) and the jig is canceled to cause a sudden drop in the load torque of the feed motor.

Abstract: A correction jig is used when installing a resin combustion gas seal in an annular installation groove of a nozzle portion of an injector. The installation groove has an increased diameter portion in a section closer to a body of the injector. When the nozzle portion is caused to pass through the combustion gas seal from a distal end of the nozzle portion to arrange the combustion gas seal at the installation groove, the correction jig receives the combustion gas seal so that the combustion gas seal is prevented from interfering with the increased diameter portion. Thereafter, the correction jig is moved relative to the injector to correct an outer diameter of the combustion gas seal. As a result, the combustion gas seal is optimally installed in the installation groove.

Abstract: An injector for directly injecting fuel into a cylinder of an internal combustion engine having a socket. The injector is provided with a nozzle insertable into the socket. An annular gap is defined between the nozzle and the socket when the nozzle is received in the socket. A first seal groove, formed in the nozzle, receives a first gas seal that seals the annular gap. A second seal groove, formed in the nozzle, receives a second gas seal that seals the annular gap. The second seal groove is formed closer to the distal end of the nozzle than the first seal groove. The depth of the second seal groove is greater than that of the first seal groove. This structure prevents the formation of deposits and maintains the sealing capability of the gas seals without lowering installation and maintenance efficiency.

Abstract: A correction jig is used when installing a resin combustion gas seal in an annular installation groove of a nozzle portion of an injector. The installation groove has an increased diameter portion in a section closer to a body of the injector. When the nozzle portion is caused to pass through the combustion gas seal from a distal end of the nozzle portion to arrange the combustion gas seal at the installation groove, the correction jig receives the combustion gas seal so that the combustion gas seal is prevented from interfering with the increased diameter portion. Thereafter, the correction jig is moved relative to the injector to correct an outer diameter of the combustion gas seal. As a result, the combustion gas seal is optimally installed in the installation groove.

Abstract: An injector for directly injecting fuel into a cylinder of an internal combustion engine having a socket. The injector is provided with a nozzle insertable into the socket. An annular gap is defined between the nozzle and the socket when the nozzle is received in the socket. A first seal groove, formed in the nozzle, receives a first gas seal that seals the annular gap. A second seal groove, formed in the nozzle, receives a second gas seal that seals the annular gap. The second seal groove is formed closer to the distal end of the nozzle than the first seal groove. The depth of the second seal groove is greater than that of the first seal groove. This structure prevents the formation of deposits and maintains the sealing capability of the gas seals without lowering installation and maintenance efficiency.

Abstract: An oil tight type chain tensioner applies tension to a chain used in an engine. The tensioner includes a housing, in which oil is sealed, and a reciprocating rod extending from the interior of the housing to the exterior for pressing the chain. An oil seal is located between the outer circumferential surface of the rod and the inner circumferential surface of the housing. A reservoir for retaining the oil is communicated with the interior of the housing. This structure permits the oil to flow between the interior of the housing and the reservoir in correspondence with the reciprocation of the rod. The reservoir has a hole for permitting air communication from the interior of the reservoir to the exterior but restricting an oil flow from the exterior of the reservoir to the interior.

Abstract: To provide a sintered alloy capable of showing wear resistance and a process for producing the same as well as a valve seat of good wear resistance.

Abstract: A pin and an oil hole are modeled in an X, Y, and Z space (a three-dimensional coordinate system). Then, the model is cut with a plane which passes through a central axis of the hole and which includes a line normal to a tangent of the pin at a point at which the central axis of the oil hole and the surface of the pin (cylindrical surface) intersect. By this operation, shapes of the pin and the oil hole are recognized in two dimensions. Following this, a point of a chamfering drill is made to overlap the pin and the oil hole on a plane. Since a shape of the chamfering drill is already known, dimensions of a chamfered portion when viewed on said plane can be determined geometrically. Then, chamfering is performed with the chamfering drill kept at such an angle of inclination that desired dimensions of chamfer can be obtained on said plane.

Abstract: A method of predicting a minimum stopping distance required to stop a subject vehicle by a braking system thereof, including: (a) a step of obtaining measurement data for each of at least one sample vehicle which is braked by a braking system thereof operated with its full braking capacity, the measurement data including a weight and a running speed of the sample vehicle, a stopping distance through which the sample vehicle has run to be stopped, a tire radius of the sample vehicle, and optionally a tire width of the sample vehicle; (b) a step of obtaining at least one predicting equation on the basis of the measurement data in a statistical manner, the equation providing a predicted value of the minimum stopping distance on the basis of a weight, a running speed and a tire radius of the subject vehicle, and optionally a tire width of the subject vehicle; and (c) a step of calculating the predicted value of the minimum stopping distance, by substituting the weight, the running speed, the tire radius of the ru

Abstract: Method of effecting a supplemental bending operation on an initially bent workpiece which has been subjected to an initial bending operation at an initial bending position selected along the centerline of the workpiece, the method including a step of determining an actual relative position between the opposite ends of the initially bent workpiece, and determining, on the basis of the determined actual relative position, at least one of a supplemental bending position and a supplemental bending amount which are used for effecting the supplemental bending operation for reducing an error between the actual relative position and a nominal relative position between opposite ends of a product to be obtained by the supplemental bending operation, the supplemental bending position being different from the initial bending position, and a step of performing the supplemental bending operation at the determined supplemental bending position, so as to achieve the determined supplemental bending amount.