Abstract: A molded article 1 is configured such that an insert 2 is made of a steel plate and includes a cylindrical part 2A and an annular part 2B, a plastic 4 is annular in shape so as to be joined to the annular part 2B, inner diameter D1 of the plastic 4 is larger than inner diameter D2 of the annular part 2B so that no burrs at a gate mark E protrude to the inner diameter side of the molded article 1, the injection molding is conducted with a disc gate arranged on an inner peripheral surface F of the plastic 4 at a position separated from a surface of the annular part 2B, and the gate mark E resides on the inner peripheral surface F of the plastic 4 at a position separated from the surface of the annular part 2B.

Abstract: A vertical circulating conveyor includes a lowering path part (3) and a raising path part (4) that connect end portions of a conveyance path part (1) and a return path part (2) vertically positioned in a linear arrangement. The lowering path part (3) includes front wheel lowering guide rails (8A) to guide front wheels (F) of a transport vehicle (5) and rear wheel lowering guide rails (8B) to guide rear wheels (R) of the transport vehicle (5). The transport vehicle (5) is moved in the lowering path part (3) by falling under its own weight in almost the horizontal state in a powerless manner while the front wheels (F) of the transport vehicle (5) are guided by the front wheel lowering guide rails (8A) and the rear wheels (R) of the transport vehicle (5) are guided by the rear wheel lowering guide rails (8B).

Abstract: Provided is a manufacturing method of an axial-type magnetic. The manufacturing method includes a press molding step and an injection molding step. The axial-type magnetic encoder includes a wrap-around binding part wrapping around from a sensor-opposed surface to a back surface of an inward flange part of an annular fixing member. A separated inner peripheral part separated from a rotating body is formed at an inner diameter-side portion of the inward flange part while an outer diameter-side portion of a back surface of the inward flange part is abutted against the rotating body. The inner peripheral part of the annular plastic magnet wraps around to a back surface of the separated inner peripheral part.

Abstract: The inner elastic sealing member 5 includes an inner cylindrical base portion 5A leading to an end portion of an inner cylindrical portion 1B of the inner ring 1, and also includes, at an outer circumferential surface of the inner cylindrical base portion 5A, a projection 7 extending radially outward of an inner periphery of a lower end of an inner cylindrical portion 2B of the outer ring 2. The outer elastic sealing member 6 includes a lip 6B brought into pressure contact with a pressure contact surface B of the outer ring 2. An upper surface 7A of the projection 7 is spaced downward from the lower end of the inner cylindrical portion 2B of the outer ring 2, and an outer circumferential surface 7C of the projection 7 is spaced radially inward from the lower member 8.

Abstract: The present invention is intended to provide a protective cover, comprising an inner ring 12 with an inner ring track surface 12A on an outer peripheral surface; an outer ring 13 with an outer ring track surface 13A on an inner peripheral surface; a bearing with rolling elements 14 between the inner ring track surface 12A and the outer ring track surface 13A; a magnetic encoder 8 that is positioned at one axial end portion of the bearing and fixed to the inner ring 12; and a magnetic sensor that is fixed to the outer ring 13, a cup-shaped protective cover 1 press-fitted into the outer ring 13 to cover the magnetic encoder 8 and intervene between the magnetic encoder 8 and the magnetic sensor is formed by performing cold press molding of an austenitic stainless steel plate material with a nickel content of 8.5 to 13 weight %.

Abstract: The present invention is intended to provide a manufacturing method of an insert molded article that makes it possible to manufacture efficiently the insert molded article including a metallic insert, an inside member made of a synthetic resin and covering a portion of the insert, and an outside member made of a synthetic resin different from the material of the inside member and covering a portion of the inside member using general molding machines, not a dedicated two-color molding machine. General molding machines are used to manufacture the insert molded article formed by injection molding of a resin part in twice. An insert core 7 is used in common in primary molding using a primary molding die C1 and in a secondary molding using a secondary molding die. A round shaft 7C of the insert core 7 is fitted into an internal hole 2C of an insert 2 to form a coupled body 10 in which the insert 2 and the insert core 7 are coupled together.

Abstract: An object of the present invention is to suppress rise in running resistance with increases in weight of a transport vehicle group, and prevent higher energy consumption and manufacturing cost. A transport device transports a transport vehicle (1) carrying an article (E) along a transport path including a curved path and forms a continuous floor (B) on the transport vehicle (1) in the entire or partial transport path. The transport device includes: running rails (R) that are laid along the transport path to support running wheels (4, 5, and 6) of the transport vehicle (1); guide rails that guide the transport vehicle (1) along the transport path; a drive unit that drives the transport vehicle (1); and a water way (WW) that is formed along the transport path to reserve water (W).

Abstract: An axial-type magnetic encoder includes an annular fixing member that is fabricated by press molding, and an annular plastic magnet that is attached by injection molding to a sensor-opposed surface of the annular fixing member. When the annular fixing member includes a cylindrical part and an inward flange part extended radially inward from an end edge of the cylindrical part, the magnetic encoder has a high-form accuracy surface on the sensor-opposed surface more radially outward than a range of a diameter (d?2·r) determined by an inner diameter d of the cylindrical part and a radius r of a corner between the cylindrical part and the inward flange part. An outer diameter of the annular plastic magnet is positioned on the high-form accuracy surface.

Abstract: The present invention is intended to provide a storage facility using an automated carrying cart that is simplified in structure, and eliminates the need for a carrying means such as a conveyor or an unmanned carrying cart or a forklift operated by the worker. A storage facility 1 uses an automated carrying cart A that carries an article W in and out of a shelf facility 2 having an article storage space S. The automated carrying cart A automatically runs in the shelf facility 2 along running rails G in paths Q1 and Q2, automatically runs on the ground outside the shelf facility 2 along specific paths P1 and P2, and is used in common for carrying the article W in the shelf facility 2 and carrying the article W on the ground outside the shelf facility 2.

Abstract: A molded article 1 is configured such that an insert 2 is made of a steel plate and includes a cylindrical part 2A and an annular part 2B, a plastic 4 is annular in shape so as to be joined to the annular part 2B, inner diameter D1 of the plastic 4 is larger than inner diameter D2 of the annular part 2B so that no burrs at a gate mark E protrude to the inner diameter side of the molded article 1, the injection molding is conducted with a disc gate arranged on an inner peripheral surface F of the plastic 4 at a position separated from a surface of the annular part 2B, and the gate mark E resides on the inner peripheral surface F of the plastic 4 at a position separated from the surface of the annular part 2B.

Abstract: A molded article 1 is configured such that an insert 2 is made of a steel plate and includes a cylindrical part 2A and an annular part 2B, a plastic 4 is annular in shape so as to be joined to the annular part 2B, inner diameter D1 of the plastic 4 is larger than inner diameter D2 of the annular part 2B so that no burrs at a gate mark E protrude to the inner diameter side of the molded article 1, the injection molding is conducted with a disc gate arranged on an inner peripheral surface F of the plastic 4 at a position separated from a surface of the annular part 2B, and the gate mark E resides on the inner peripheral surface F of the plastic 4 at a position separated from the surface of the annular part 2B.

Abstract: The present invention is intended to provide a machine component composed of metal and rubber that results in no increase of material costs for an adhesive or increase of manufacturing costs for metal molding, causes no contamination of the metal mold or generates no foreign matter on the metal mold due to adhesion of the adhesive at the time of molding, causes no failure by separation of the adhesive from a fitting portion at the time of fitting the metal component, and is clean and favorable in appearance. A machine component 1 composed of metal and rubber is formed by applying a thermoset resin adhesive A to a surface of a metal component 2 of a predetermined shape, and vulcanizing and adhering a rubber 3 of a predetermined shape to part of the surface of the metal component 2 by metal molding.

Abstract: A vertical circulating conveyor includes a lowering path part (3) and a raising path part (4) that connect end portions of a conveyance path part (1) and a return path part (2) vertically positioned in a linear arrangement. The lowering path part (3) includes front wheel lowering guide rails (8A) to guide front wheels (F) of a transport vehicle (5) and rear wheel lowering guide rails (8B) to guide rear wheels (R) of the transport vehicle (5). The transport vehicle (5) is moved in the lowering path part (3) by falling under its own weight in almost the horizontal state in a powerless manner while the front wheels (F) of the transport vehicle (5) are guided by the front wheel lowering guide rails (8A) and the rear wheels (R) of the transport vehicle (5) are guided by the rear wheel lowering guide rails (8B).

Abstract: The present invention is intended to provide a manufacturing method of a protective cover having a sensor holder part that has high adhesion strength between a metallic component and a plastic component and maintains high reliability over a long period of time. The manufacturing method includes: a step of applying a thermoset resin adhesive to a surface of a metallic component 1A including a joining surface relative to a plastic component; a drying and solidification step of evaporating a solvent contained in the adhesive under a temperature condition at a temperature lower than a temperature at which the adhesive starts cross-linking reaction; and an injection molding step of placing the metallic component 1A as an insert in dies 18 and 19 and injecting a molten plastic material from a gate 20 into cavities.

Abstract: The present invention is intended to provide a method for manufacturing a resin gear with a core metal by which there is no reduction in strength even with gates allowing decrease in material costs such as pin gates in the molding die for injection molding. The manufacturing method includes: gates at a primary molding step and gates at a secondary molding step are pin gates or the like. The number of the gates at the primary molding step and the number of the gates at the secondary molding step are plural and identical, and the gates are arranged circumferentially. Gate positions G21, . . . at the secondary molding step are circumferentially intermediate or nearly circumferentially intermediate between gate positions G11, . . . and weld positions W11, . . . adjacent to the gate positions G11, . . . in the primary molded article.

Abstract: The present invention is intended to provide a protective cover having a reliable sensor holder part that prevents reduction in air tightness and strength of a division wall between a magnetic sensor and a magnetic encoder. A protective cover 1 is press-fitted into an outer ring to seal one axial end portion of a bearing, and has a sensor holder part 3B holding a magnetic sensor A. In the protective cover 1, a disc-shaped member 3 has a thick part 6 as a flow path for preferentially charging a molten resin into a thin part for forming a division wall B in a cavity of a molding die for use in injection molding between a position corresponding to a gate of the molding die and the division wall B.

Abstract: The present invention is intended to provide an injection molding die that improves the strength of adhesion between an insert and a plastic in an insert molded article while suppressing fluctuations in the strength of adhesion. An injection molding die is used to manufacture an insert molded article by placing an insert 12 with a thermoset resin adhesive in the molding die and injecting a molten plastic material P from a gate G into a cavity C. The gate G is arranged at a position separated by 0.2 mm or more in an out-of-plane direction from a surface A1 of the adhesive applied to the joining surface of the insert 12. During injection molding, the wall surface shear stress generated on the adhesive applied to the joining surface of the insert 12 relative to the plastic near the gate G becomes small. The adhesive is not swept away by the high-pressure molten plastic material P without having to bring the adhesive applied to the joining surface A of the insert 12 into the semi-cured state.

Abstract: An object of the present invention is to provide a roller bearing cage suited in particular to a supersized roller bearing, wherein the cage (1A) is configured such that a pair of ring parts (4 and 6) axially separated is connected by a plurality of column parts (5) sliding on an outer peripheral surfaces of rollers (RA), and a plurality of pocket holes (P) is evenly formed in a circumferential direction to store and hold the rollers (RA) at a peripheral wall portion, wherein a base body (2) including one ring part (4) and the column parts (5) with engagement convexes (5A) at leading ends thereof and a connection body (3) including the other ring part (6) with engagement concaves (6A) for engagement with the engagement convexes (5A) of the column parts (5) are set as separate members.

Abstract: A magnetic encoder 1 including a support member 2 attached to a rotating body 12 and a magnet member 3 fixed to the support member 2, the support member 2 and the magnet 4 are not attached to each other using an adhesive but the support member 2 and the plastic magnet 4 are joined together by molding shrinkage or wrap-around form of the magnet 4, and the material for the magnet 4 is selected such that the value of the ratio ((?p??m)/?c) of a difference (?p??m) between flowing-direction linear expansion coefficient (?p) of the magnet 4 and linear expansion coefficient (?m) of the support member 2, to tensile breaking strain (?c) of the material for the magnet 4 is equal to or less than a value beginning at a threshold (Nth) based on a prescribed value of cycle member at thermal shock destructive test.

Abstract: The drive control device for a drive system including a vertical carrier machine includes: a drive control device (A) for an electric motor (M1) mainly for regenerative operation; a drive control device (B) for an electric motor (M2) mainly for power operation; and a regenerative power storage capacitor (12) that is connected between a positive terminal (P11) and a negative terminal (N1) of a direct-current output line of a converter part (1) via a third inrush current suppression circuit (11) in which a third resistor (R3) and a switch (SW3) are connected in parallel, wherein the capacitor (12) has an electrostatic capacitance and a direct-current internal resistance to produce a current value with which braking torque required for velocity control of the electric motor (M1) mainly for regenerative operation is generated by a charging current flowing at storage of the regenerative energy generated by the electric motor (M1).