Abstract: According to one implementation, a drill that drills at least one of a composite material and a metal is provided. A web thickness at least at a tip of the drill is not less than 5% and less than 25% of at least one diameter of the drill. Further, according to one implementation, a method of manufacturing a drilled product is provided. The drilled product is manufactured by drilling a workpiece using the above-mentioned drill. The workpiece is made of the at least one of the composite material and the metal.

Abstract: A method of designing a gear in which a tooth trace of the tooth flank, which is to be engaged with another mating tooth flank, is curved with respect to an axial direction of the body of the gear. The mating tooth flank of the mating gear is designed in such a manner that a desired tooth contact can be achieved. Accordingly, sufficient design precision can be attained. Furthermore, stress at the tooth flanks can be controlled when the gears are engaged with each other, thereby leading to high durability of the gears.

Abstract: The present invention is a fusion-bonded product having a high-strength part, comprising: a first preform (2a) constituted by integrally, frictionally pressure-welding a first low-carbon steel part (L1) made of low-carbon steel containing less than 0.45% of C and a high-carbon steel part (H) made of high-carbon steel containing not less than 0.45% of C; and a second preform (2b) having a second low-carbon steel part (L2) made of second low-carbon steel containing less than 0.45% of C; wherein the high-carbon steel part (H) of the first preform (2a) is provided with a high-strength part (9) that has been previously formed into a desired shape and quenched, the second low-carbon steel part (L2) of the second preform (2b) has been previously formed into a predetermined shape, and the first low-carbon steel part (L1) of the first preform (2a) and the second low-carbon steel part (L2) of the second preform (2b) are bonded to each other by fusion welding.

Abstract: A press assembly including a die assembly having a trim die defining an annular cavity wherein the trim die is fixed to the press assembly, a punch assembly including a trim punch having an annular boss that is correspondingly shaped to the annular cavity, wherein the trim punch is movable relative to the die assembly, and an ejector assembly including an ejector arm, wherein the ejector arm is mounted to the punch assembly. The object is pressed into the annular cavity of the trim die by the annular boss of the trim punch when the annular boss is slidably received in the annular cavity, and the ejector arm pushes the object upwardly within the annular cavity of the trim die when the annular boss of the trim punch is removed from the annular cavity.

Abstract: A forming method of a tooth trace of a gear according to the present invention includes: a first step of preparing a preformed gear made of metal including a cylindrical main body and a tooth part having a flat tooth flank having a uniform thickness in a tooth trace direction inside of the main body; and a second step of conducting a surface treatment locally to an outside surface of the main body in order to deform the outside surface of the main body in such a manner that the same becomes concave, so that a crowning bulging in the tooth trace direction is formed on the tooth flank of the tooth part.

Abstract: The present invention is a fusion-bonded product having a high-strength part, comprising: a first preform (2a) constituted by integrally, frictionally pressure-welding a first low-carbon steel part (L1) made of low-carbon steel containing less than 0.45% of C and a high-carbon steel part (H) made of high-carbon steel containing not less than 0.45% of C; and a second preform (2b) having a second low-carbon steel part (L2) made of second low-carbon steel containing less than 0.45% of C; wherein the high-carbon steel part (H) of the first preform (2a) is provided with a high-strength part (9) that has been previously formed into a desired shape and quenched, the second low-carbon steel part (L2) of the second preform (2b) has been previously formed into a predetermined shape, and the first low-carbon steel part (L1) of the first preform (2a) and the second low-carbon steel part (L2) of the second preform (2b) are bonded to each other by fusion welding.

Abstract: A ball joint includes: a ball stud having a spherical ball part and a shank part extending from the spherical ball part; a bearing cupping the spherical ball part of the ball stud; and a housing holding the bearing therein. The housing is provided with a recess in an inner surface thereof. The bearing deforms to enter into the recess of the housing in such a manner that a space is formed between the bearing and the spherical ball part.

Abstract: A shearing device including a retainer having a mountain-shaped inclined surface on its top and fixed in a standing posture, a plurality of side punches each having an operating surface on one side thereof. The side punches are arranged in a radial pattern with the respective operating surfaces directed outward and are placed in a standing posture on the inclined surface so as to be slidable. A cylindrical die is disposed to surround the side punches and has in its peripheral wall punch apertures facing the respective operating surfaces of the side punches. An actuator is provided for pushing the side punches and the die to simultaneously move downward.

Abstract: A one-way clutch of the invention includes an inner race supported for rotation on a power transmission shaft, an outer race concentrically surrounding the inner race, and torque transmitting members interposed between the inner race and the outer race and capable of transmitting torque in one direction of the inner race to the outer race. The outer race is integrally provided with an extending portion that extends inwardly in a radius direction thereof. The extending portion is capable of being engaged with the power transmission shaft.

Abstract: A one-way clutch of the invention includes an inner race supported for rotation on a power transmission shaft, an outer race concentrically surrounding the inner race, and torque transmitting members interposed between the inner race and the outer race and capable of transmitting torque in one direction of the inner race to the outer race. The outer race is integrally provided with an extending portion that extends inwardly in a radius direction thereof. The extending portion is capable of being engaged with the power transmission shaft.

Abstract: A ball joint includes: a ball stud having a spherical ball part and a shank part extending from the spherical ball part; a bearing cupping the spherical ball part of the ball stud; and a housing holding the bearing therein. The housing is provided with a recess in an inner surface thereof. The bearing deforms to enter into the recess of the housing in such a manner that a space is formed between the bearing and the spherical ball part.

Abstract: The joystick assembly of the tiltable joystick pointing device comprises a first shaft which is pivotally supported by the base and urged by the first spring assembly into the upright neutral position, a second shaft slidably guided relative to the first shaft so as to be slidable in an axial direction, a second spring assembly for axially urging the second shaft toward an axially neutral position, and a slide direction detector for producing a slide direction signal corresponding to an axial movement of the second shaft. Thus, by holding the second shaft and tilting the first shaft via the second shaft, a corresponding tilt direction signal is produced from the tilt direction detector in a conventional manner. Additionally, by holding the second shaft and pushing down or pulling down the second shaft relative to the first shaft, a corresponding slide direction signal is produced from the slide direction detector.

Abstract: The joint assembly 1 for a car steering system has a first ball joint 11, a tubular collar 25, an elastic member 26 and a second ball joint 21. The first ball joint 11 has a stem 13 provided with a recess 13a. The tubular collar 25 has a protrusion 25a at an inside thereof and provided around the stem 13 in such a manner that the protrusion 25a confronts the recess 13a. The elastic member 26 is provided between the recess 13a of the stem 13 and the protrusion 25a of the collar 25. The second ball joint 21 has a hole 19 for accommodating the collar 25 covering the stem 13. According to the joint assembly 1, vibration generated at the wheel 71 is absorbed by the elastic member 26 and seldom gives the driver uncomfortableness or causes the driver to err in driving the car.

Abstract: A ball joint of the present invention joins a pair of members so that relative pivotal movement of the pair of members is permitted. The ball joint comprises a ball stud to be connected to one of the pair of members, a bearing support rod to be connected to the other member, and a cup-shaped bearing for supporting the ball stud on the rod. The bearing is formed of an elastic polymeric material and has an expandable open end to permit the ball of the ball stud to be put in and taken out of a hollow defined by the spherical inner surface of the bearing through the open end. The opposite ends of a rod forming the bearing support rod is bent in a ring-shaped heads, respectively. When the bearing is fitted in the ring-shaped head, the ring-shaped head compresses the bearing so that the ball of the ball stud is unable to come off the bearing.

Abstract: A ball-and-socket joint used in a linkage mechanism of the motor vehicle steering device has a ball head of a shank, encompassed by a bearing in a housing. The housing has an end opening at the opposite side of the shank. A joining member made up of a head part and a male screw portion is fitted in the opening at the head part. The head part is integrally formed with a peripheral flange, preferably a flange of flared shape. The surface of the flange is covered with an elastic layer. A fixing ring abuts against the flange to prevent detachment of the joining member from the housing. A closure plate may be interposed between the flange and the bearing and between the flange and the housing. Vibration and shocks imparted to the ball head through the shank is absorbed by the elastic layer without increasing the diametrical dimension of the joint.

Abstract: In an image processing system in which shading-compensation for eliminating shading-distortion contained inevitably in image light directed to an image sensor via optical systems is carried out, at least two latch unit for temporarily storing comparative values obtained by scanning white and black image planes are disposed between memory means for the comparative values and a processing unit for compensating image signals obtained as a result of optically scanning a given objective image. Since the comparative value of the pixel subsequent to a pixel in process is rendered on standby in one of the latch units in preparation for the image processing for the subsequent pixel, the processing time can be remarkably increased consequently to speed up the image processing.

Abstract: A sheet conveyer having a sheet registration device for an image forming apparatus having a sheet path for guiding a sheet having an image recorded on one side thereof back to an image forming unit for recording another image on the other side, comprises a mechanism for switching the sheet having the image recorded on one side thereof back to the sheet path, a mechanism for abutting the switched-back sheet against a lateral registration reference plane, and a preliminary shift function shared by the switch-back mechanism for shifting the sheet oppositely to the reference plane.

Abstract: Reflected image light obtained by illuminating a reading portion to be read on a given objective image plane is sent to an image sensor located on the rear side through a reflecting member disposed substantially just above the reading portion. By forming a viewing path inclined forward against, or forward with respect to a vertical plane, the image sensor so as to permit the reading portion to be observed easily, the desired image light reflected from the reading portion is little interfered with by external light entering inside the scanner through the viewing path, thereby to enjoy image processing of high quality.