Abstract: A production apparatus for producing a component assembly by sequentially performing predetermined processes in a plurality of processing areas (A1 to A6) arranged in a ring formation and then, by separating a jig. The apparatus includes a rotational table main body (20), a plurality of holding/transfer units (30) rotatable integrally with the rotational table main body and capable of holding an object and transferring the same onto processing tables in the plurality of processing areas, a plurality of loading portions (40) provided on the rotational table main body corresponding to the plurality of holding/transfer units and capable of loading the jig, and a plurality of processing units (60 to 110) provided for performing predetermined processes in the plurality of processing areas.

Abstract: This invention provides a retainer assembling apparatus which assembles a retainer to a valve stem via a cotter which engage with an engaging groove formed on the valve stem. The cotter comprises a pair of cotter segments. The apparatus includes a cylindrical body, a holding portion which holds the retainer contacting a lower end of the cylindrical body, a push-up shaft which pushes up the pair of cotter segments into the cylindrical body, and an axial body which is arranged in the cylindrical body to be coaxial with the push-up shaft and to be coaxially movable. The cylindrical body includes a tapered inner circumferential portion on an inner circumferential wall lower portion thereof.

Abstract: A heat-resistant alloy spring is made of a Ni-based alloy material comprising in weight %: not more than 0.1% C; not more than 1.0% Si; not more than 1.50% Mn; 13.0 to 25.0% Cr; 1.5 to 7.0% Mo; 0.5 to 4.0% Ti; 0.1 to 3.0% Al; {at least one optional element selected from the group consisting of 0.15 to 2.50% W, 0.001 to 0.020% B, 0.01 to 0.3% Zr, 0.30 to 6.00% Nb, 5.0 to 18.0% Co, and 0.03 to 2.00% Cu}; the balance being essentially Ni; and incidental impurities. The Ni-based alloy material is provided in its crystal structure with gamma prime phase [Ni3(Al, Ti)] or gamma prime phase [Ni3(Al, Ti, Nb)].

Abstract: This invention provides a retainer assembling apparatus which assembles a retainer to a valve stem via a cotter which engage with an engaging groove formed on the valve stem. The cotter comprises a pair of cotter segments. The apparatus includes a cylindrical body, a holding portion which holds the retainer contacting a lower end of the cylindrical body, a push-up shaft which pushes up the pair of cotter segments into the cylindrical body, and an axial body which is arranged in the cylindrical body to be coaxial with the push-up shaft and to be coaxially movable. The cylindrical body includes a tapered inner circumferential portion on an inner circumferential wall lower portion thereof.

Abstract: A conveyor device is formed with roller units arranged continuously on conveyor frames (10, 10?). Each of the roller units includes a rotating body (110) having a cylindrical part (111) rotatably supported around a predetermined axis (A) and being rotationally driven, a roller (120) rotatably supported by an outer periphery of the cylindrical part to carry an object being conveyed on the outer peripheral surface thereof, a pair of thrust plates (140, 150) arranged so as to be capable of pressing both side surfaces of the roller while holding the roller therebetween and rotating integrally with the cylindrical part; and a pressing force adjusting mechanism (160, 170, 180, 190) arranged inside the cylindrical part to adjust a pressing force with which the paired thrust plates press the roller while holding the roller therebetween.

Abstract: A production apparatus of the present invention produces a component assembly to an object to be processed in which a jig for holding a subsidiary component is set to a main component by sequentially performing predetermined processes in a plurality of processing areas (A1 to A6) arranged in a ring formation and then, by separating the jig, and includes a rotational table main body (20) rotated and driven by steps of a predetermined angle, a plurality of holding/transfer units (30) arranged in a circumference direction so as to rotate integrally with the rotational table main body and capable of holding the object or the component assembly and transferring the same onto processing tables in the plurality of processing areas, a plurality of loading portions (40) provided on the rotational table main body corresponding to the plurality of holding/transfer units and capable of loading the jig, and a plurality of processing units (60 to 110) provided for performing predetermined processes in the plurality of proc

Abstract: A conveyor device is formed with roller units arranged continuously on conveyor frames (10, 10?). Each of the roller units includes a rotating body (110) having a cylindrical part (111) rotatably supported around a predetermined axis (A) and being rotationally driven, a roller (120) rotatably supported by an outer periphery of the cylindrical part to carry an object being conveyed on the outer peripheral surface thereof, a pair of thrust plates (140, 150) arranged so as to be capable of pressing both side surfaces of the roller while holding the roller therebetween and rotating integrally with the cylindrical part; and a pressing force adjusting mechanism (160, 170, 180, 190) arranged inside the cylindrical part to adjust a pressing force with which the paired thrust plates press the roller while holding the roller therebetween.

Abstract: A heat-resistant alloy spring is made of a Ni-based alloy material comprising in weight %: not more than 0.1% C; not more than 1.0% Si; not more than 1.50% Mn; 13.0 to 25.0% Cr; 1.5 to 7.0% Mo; 0.5 to 4.0% Ti; 0.1 to 3.0 % Al; {at least one optional element selected from the group consisting of 0.15 to 2.50% w, 0.001 to 0.020% B, 0.01 to 0.3% Zr, 0.30 to 6.00% Nb, 5.0 to 18.0% Co, and 0.03 to 2.00% Cu}; the balance being essentially Ni; and incidental impurities. The Ni-based alloy material is provided in its crystal structure with gamma prime phase [Ni3(Al, Ti)] or gamma prime phase [Ni3(Al, Ti, Nb)]. The gamma prime phase has an average grain diameter (d) of not less than 25 nanometers, and a hardness-diameter ratio (Hv/d) of a Vickers hardness Hv of a position at a depth of one-fourth of the entire thickness or the wire diameter from a surface of the Ni-based alloy material toward its center and the average grain diameter d(nanometer) is 5 to 25.

Abstract: Exhaust passage control valve 10 may comprise housing 30, valve member 20, and helical torsion spring 40. Housing 30 has an exhaust passage. Exhaust gas from an internal combustion engine flows through the exhaust passage of the housing 30. Valve member 20 opens and closes the exhaust passage of the housing. Helical torsion spring 40 may be disposed at the opposite side of the valve member from the housing side thereof. Helical torsion spring 40 comprises a coil part wherein spring wires have been wound in a coil shape, and arms formed at both ends of the coil part. The coil part may be disposed at approximately the center of the valve member. When the arms bend with respect to the coil part, the counter-force of this bending energizes the valve member towards a closing side. The spring mounting member may be arranged and constructed to adjust a position in which the spring mounting member is mounted on the housing such that a rotation angle of the arms can be changed.

Abstract: Exhaust passage control valve 10 may comprise housing 30, valve member 20, and helical torsion spring 40. Housing 30 has an exhaust passage. Exhaust gas from an internal combustion engine flows through the exhaust passage of the housing 30. Valve member 20 opens and closes the exhaust passage of the housing. Helical torsion spring 40 may be disposed at the opposite side of the valve member from the housing side thereof. Helical torsion spring 40 comprises a coil part wherein spring wires have been wound in a coil shape, and arms formed at both ends of the coil part. The coil part may be disposed at approximately the center of the valve member. When the arms bend with respect to the coil part, the counter-force of this bending energizes the valve member towards a closing side. The spring mounting member may be arranged and constructed to adjust a position in which the spring mounting member is mounted on the housing such that a rotation angle of the arms can be changed.

Abstract: A ceramic nib for a writing instrument having a tapered outer surface which converges toward a writing point end to form a tapered point, and at least one ink passage extending along the length of the nib such that the ink passage is converged along with the convergence of the outer surface of the ceramic tapered point of the nib, the ink passage having a bottom surface which is tapered such that it becomes more narrow towards the tapered point.