Abstract: Provided is a zoom lens device and an optical device with which it is possible to increase a moving distance of a moving cylinder in an optical axis direction without an increase in number of components, the moving cylinder including a lens group closest to a subject side. A zoom lens device (1) includes a fixed cylinder (30), a cam cylinder (20) that is positioned outside the fixed cylinder (30), a first movement group that is positioned outside the cam cylinder (20) and that includes a first lens group (H1) provided at a distal end portion, and a second movement group that is positioned inside the fixed cylinder (30) and that includes a second lens group (H2).

Abstract: A rectangular article boxing method of the present invention includes: a step of erecting upright and aligning a bundle of rectangular articles, gripping, lifting, transferring, and lowering the bundle and inserting the bundle between a first guide and a second guide disposed at a predetermined interval in a carton; a step of displacing the first guide to above the upright bundle; a step of moving the inserted bundle to a position in contact with the existing bundle and holding the bundles with the second guide; a step of holding the upright bundles with the first guide in place of the second guide; and a step of displacing the second guide to a position at the predetermined interval from the first guide to receive the bundle to be conveyed next.

Abstract: When compression molding is performed continuously, lumps of molten synthetic resin (drops), which are supplied by extrusion, are continuously, accurately, and rapidly inserted into plurality of compression molding dies which are rotatingly movable. A method and device for continuously supplying drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings.

Abstract: A method and device for continuously supplying molten synthetic resin drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings. At that time the holding mechanism on the rotary- and movable type drop supply is made to approach the rotating molding die and the rotation path of the holding mechanism is made to overlap with that of the molding die within a determined area to make the movement of the holding mechanisms follow that of the molding die.

Abstract: A rectangular article boxing method of the present invention includes: a step of erecting upright and aligning a bundle of rectangular articles, gripping, lifting, transferring, and lowering the bundle and inserting the bundle between a first guide and a second guide disposed at a predetermined interval in a carton; a step of displacing the first guide to above the upright bundle; a step of moving the inserted bundle to a position in contact with the existing bundle and holding the bundles with the second guide; a step of holding the upright bundles with the first guide in place of the second guide; and a step of displacing the second guide to a position at the predetermined interval from the first guide to receive the bundle to be conveyed next.

Abstract: To provide a preform, a bottle and a preform molding apparatus capable of preventing lowering in the mechanical strength of a preform, reducing the amount of a resin material, as well as improving productivity. A preform mold 1e used in the preform molding apparatus has a mouth neck part mold 2, a body part mold 3e and a core mold 163, and the body part mold 3e has, on the outer edge of the upper surface of a cylindrical protrusion part 31e, an annular protrusion 33 which controls the moving direction of a solidified film 118 and a solidified film 117 which have been peeled.

Abstract: Inner surface strain of a container is reduced by suppressing a temperature drop of blow air, and heat resistance of the container is increased by enhancing the degree of crystallization. A blow air supply unit for a blow molding machine for molding a hollow bottle container 1 by supplying heated blow air into a preform includes: a high-pressure air source 11 for generating high-pressure blow air; a high-pressure gate valve 12 for opening/closing a blow air channel on the downstream of the high-pressure air source 11; a heat exchanger 13 for heating the blow air on the downstream of the high-pressure gate valve 12; a throttle valve 14 for throttling the flow rate of blow air on the downstream side of the heat exchanger 13; and a switchover valve 15 for switching the blow air on the downstream of the throttle valve 14.

Abstract: A lens moving frame according to an embodiment of the invention includes a holder portion. The holder portion includes: wall portions having guide holes formed therein; partition walls into which a guide bar is inserted and which are provided near the corresponding wall portions; and lubricant reservoir portions that are provided between the partition walls and the wall portions and have a lubricant filled and stored therein. The lubricant stored in the lubricant reservoir portion is adhered to the guide bar disposed between the partition wall and the wall portion. When the lens moving frame is moved along the guide bar, an extra lubricant is scraped off from the guide bar by the guide holes and opening portions of the partition walls and then stored in the lubricant reservoir portions.

Abstract: A lens device includes: a lens barrel body having holes; guide bars supported by the lens barrel body and one ends of the guide bars are inserted in the holes; lens holding frames supported so as to be movable along the guide bars and are engaged with the guide bars; and pressing members that press the one ends of the guide bars in a direction perpendicular to the guide bars and are inserted in the holes. The pressing members have a falling-off prevention engagement protrusion engaged with the lens barrel body.

Abstract: An apparatus for supplying synthetic resins applicable to a metal mold wheel that rotates at a high speed. A cutter of a cutter unit and a holding fitting are attached to an air cylinder, so that the cutter unit can be advanced and retreated in the radial direction of rotation. When the molten resin is stably blown out from an extrusion nozzle, the air cylinder is expanded to move the cutter to an advanced position to cut the molten resin. When the molten resin is unstably blown out from the extruder, the air cylinder is contracted and the cutter is arranged at a retreated position so will not to come in contact with the molten resin. Despite the cutter wheel continues to rotate, the molten resin is not contacted by the cutters.

Abstract: To provide a preform, a bottle and a preform molding apparatus capable of preventing lowering in the mechanical strength of a preform, reducing the amount of a resin material, as well as improving productivity. A preform mold 1e used in the preform molding apparatus has a mouth neck part mold 2, a body part mold 3e and a core mold 163, and the body part mold 3e has, on the outer edge of the upper surface of a cylindrical protrusion part 31e, an annular protrusion 33 which controls the moving direction of a solidified film 118 and a solidified film 117 which have been peeled.

Abstract: A phase-shift mask including a transparent substrate, and a light-shielding film formed on the transparent substrate and provided with first apertures and second apertures which are alternately arranged. The transparent substrate is partially removed through the second apertures to form a recessed portion having a predetermined depth. Light transmitted through the first apertures and light transmitted through the second apertures are enabled to alternately invert in phase thereof. This phase-shift mask is characterized in that a phase shift of transmitted light is set in conformity with a pitch between an edge of the first aperture and an edge of the second aperture of the light-shielding film.

Abstract: A lens moving frame according to an embodiment of the invention includes a holder portion. The holder portion includes: wall portions having guide holes formed therein; partition walls into which a guide bar is inserted and which are provided near the corresponding wall portions; and lubricant reservoir portions that are provided between the partition walls and the wall portions and have a lubricant filled and stored therein. The lubricant stored in the lubricant reservoir portion is adhered to the guide bar disposed between the partition wall and the wall portion. When the lens moving frame is moved along the guide bar, an extra lubricant is scraped off from the guide bar by the guide holes and opening portions of the partition walls and then stored in the lubricant reservoir portions. Therefore, the amount of lubricant required to smoothly move the lens moving frame is adhered to the guide bar.

Abstract: A lens device includes: a lens barrel body having holes; guide bars supported by the lens barrel body and one ends of the guide bars are inserted in the holes; lens holding frames supported so as to be movable along the guide bars and are engaged with the guide bars; and pressing members that press the one ends of the guide bars in a direction perpendicular to the guide bars and are inserted in the holes. The pressing members have a falling-off prevention engagement protrusion engaged with the lens barrel body.

Abstract: A lock mechanism for a stage apparatus, includes a movable stage provided on a stationary member which is movable in a reference plane; a pair of engaging members which are provided on the movable stage; a pair of lock members which are positioned between the engaging members and are movable so as to move toward and away from corresponding the engaging members; a lock driving device which moves the lock members to an engaged position wherein the lock members mutually move away from each other and engage with the corresponding engaging members; and an unlock driving device which moves the lock members to a disengaged position wherein the lock members mutually move toward each other so as to disengage with the corresponding engaging members.

Abstract: An apparatus for supplying synthetic resins applicable to a metal mold wheel that rotates at a high speed. A cutter of a cutter unit and a holding fitting are attached to an air cylinder, so that the cutter unit can be advanced and retreated in the radial direction of rotation. When the molten resin is stably blown out from an extrusion nozzle, the air cylinder is expanded to move the cutter to an advanced position to cut the molten resin. When the molten resin is unstably blown out from the extruder, the air cylinder is contracted and the cutter is arranged at a retreated position so will not to come in contact with the molten resin. Despite the cutter wheel continues to rotate, the molten resin is not contacted by the cutters.

Abstract: A lock mechanism for a stage apparatus, the stage apparatus having a stationary support board and a movable stage relatively movable in a plane parallel to the stationary support board, includes a pair of engaging members projecting from the movable stage; a rotational lock device including a pair of arm members rotatably mounted and relatively rotatable between an engaged position at which facing free ends of the arm members clasp corresponding engaging members, and a disengaged position at which the facing free ends of the arm members move away from the corresponding engaging members; a lock driving device which rotates the arm members to the engaged position upon the movable stage entering a non-operational state; and an unlock driving device which rotates the arm members to the disengaged position so that the movable stage enters an operational state.

Abstract: A lock mechanism for a stage apparatus includes a movable stage; a pair of engaging members provided on the movable stage; a pair of lock members positioned between the engaging members and movable along an imaginary straight line passing through the engaging members; a first link member movable along a reference straight line between the lock members; a pair of second link members rotatably mounted on the first link member and rotatably mounted on the lock members; a lock driving device which moves the lock members mutually away from each other to engage with the engaging members by moving the first link member along the reference straight line; and an unlock driving device which moves the lock members mutually toward each other so as to disengage with the engaging members by moving the first link member in the other direction along the reference straight line.

Abstract: Inner surface strain of a container is reduced by suppressing a temperature drop of blow air, and heat resistance of the container is increased by enhancing the degree of crystallization. A blow air supply unit for a blow molding machine for molding a hollow bottle container 1 by supplying heated blow air into a preform includes: a high-pressure air source 11 for generating high-pressure blow air; a high-pressure gate valve 12 for opening/closing a blow air channel on the downstream of the high-pressure air source 11; a heat exchanger 13 for heating the blow air on the downstream of the high-pressure gate valve 12; a throttle valve 14 for throttling the flow rate of blow air on the downstream side of the heat exchanger 13; and a switchover valve 15 for switching the blow air on the downstream of the throttle valve 14.

Abstract: A phase-shift mask including a transparent substrate, and a light-shielding film formed on the transparent substrate and provided with first apertures and second apertures which are alternately arranged. The transparent substrate is partially removed through the second apertures to form a recessed portion having a predetermined depth. Light transmitted through the first apertures and light transmitted through the second apertures are enabled to alternately invert in phase thereof. This phase-shift mask is characterized in that a phase shift of transmitted light is set in conformity with a pitch between an edge of the first aperture and an edge of the second aperture of the light-shielding film.