Abstract: To provide a variant-can having a narrow part in the vicinity of a bottom part by performing a diameter-reduction process up to the vicinity of the bottom part on a trunk part of a can-body made of metal in a can-manufacturing device which processes the can-body being held by a pocket-shaped conveying part while conveying. It is provided with: a can-body pocket which holds a can-body by being in contact with a part of an outer circumference surface of a trunk part of the can-body; a base pad which presses a bottom part of the can-body along a can-axis direction; a die in which the trunk part of the can-body is press-inserted; and a clamping ring which protrudes from the base pad toward the die and is provided so as to move back and forth along the can-axis direction.

Abstract: A diameter-reduction apparatus for can-trunk for performing a diameter-reduction process on a trunk part of a can-body having a closed-end cylindrical shape with an open end, including: a can-body holder holding a bottom part of the can-body, which is provided with: a base pad abutting on the bottom part of the can-boy; and a first clamping-ring having substantially a cylindrical shape which clamps an outer circumference surface of a trunk part of the can-body at the bottom side and which moves back and forth relative to the base pad along a can-axis direction; a die unit for diameter-reduction provided with a die for a diameter-reduction process of the trunk part by moving back and forth with respect to the can-body holder along the can-axis direction; and a first clamping-ring moving device moving the first clamping-ring backward along the can-axis direction along with an advance of the die.

Abstract: A manufacturing method for a screw-threaded bottle-can including the steps of: forming a shoulder part, a pipe part, a tapered part and an aperture-end part above a trunk part; and forming a screw-thread part by an inner mold and an outer mold in which the pipe part is sandwiched therebetween. An outer diameter of the pipe part is formed to an intermediate diameter between a ridge diameter and a bottom diameter of the screw-thread part. The screw-thread part is formed from the tapered part to the pipe part so as to form a screw-starting part at an intermediate position of the tapered part. A height of a first step of a right-hand screw-type protrusion of the inner mold is formed to be lower than a height of a second and subsequent steps in an angle range of 90° circumferentially continuing from the screw-starting part.

Abstract: A method for producing a screw-top bottle-can and a screw-top bottle-can are provided so that a screw-thread can be formed without damaging an inner coating and a resealing operation can be improved. A shoulder part is formed by reducing a diameter of an opening part of a closed-end cylindrical body, a cylindrical part having an intermediate diameter between a major thread diameter and a minor thread diameter and a tapered part which is tapered from an upper end of the cylindrical part toward an opening-end part are formed above the shoulder part, and forming a screw-thread from the tapered part to the cylindrical part so as to form a starting part of the screw-thread at a middle part of the tapered part.

Abstract: A method for producing a screw-top bottle-can and a screw-top bottle-can are provided so that a screw-thread can be formed without damaging an inner coating and a resealing operation can be improved. A shoulder part is formed by reducing a diameter of an opening part of a closed-end cylindrical body, a cylindrical part having an intermediate diameter between a major thread diameter and a minor thread diameter and a tapered part which is tapered from an upper end of the cylindrical part toward an opening-end part are formed above the shoulder part, and forming a screw-thread from the tapered part to the cylindrical part so as to form a starting part of the screw-thread at a middle part of the tapered part.

Abstract: To provide a variant-can having a narrow part in the vicinity of a bottom part by performing a diameter-reduction process up to the vicinity of the bottom part on a trunk part of a can-body made of metal in a can-manufacturing device which processes the can-body being held by a pocket-shaped conveying part while conveying. It is provided with: a can-body pocket which holds a can-body by being in contact with a part of an outer circumference surface of a trunk part of the can-body; a base pad which presses a bottom part of the can-body along a can-axis direction; a die in which the trunk part of the can-body is press-inserted; and a clamping ring which protrudes from the base pad toward the die and is provided so as to move back and forth along the can-axis direction.

Abstract: A manufacturing method for a screw-threaded bottle-can including the steps of: forming a shoulder part, a pipe part, a tapered part and an aperture-end part above a trunk part; and forming a screw-thread part by an inner mold and an outer mold in which the pipe part is sandwiched therebetween. An outer diameter of the pipe part is formed to an intermediate diameter between a ridge diameter and a bottom diameter of the screw-thread part. The screw-thread part is formed from the tapered part to the pipe part so as to form a screw-starting part at an intermediate position of the tapered part. A height of a first step of a right-hand screw-type protrusion of the inner mold is formed to be lower than a height of a second and subsequent steps in an angle range of 90° circumferentially continuing from the screw-starting part.

Abstract: A diameter-reduction apparatus for can-trunk for performing a diameter-reduction process on a trunk part of a can-body having a closed-end cylindrical shape with an open end, including: a can-body holder holding a bottom part of the can-body, which is provided with: a base pad abutting on the bottom part of the can-boy; and a first clamping-ring having substantially a cylindrical shape which clamps an outer circumference surface of a trunk part of the can-body at the bottom side and which moves back and forth relative to the base pad along a can-axis direction; a die unit for diameter-reduction provided with a die for a diameter-reduction process of the trunk part by moving back and forth with respect to the can-body holder along the can-axis direction; and a first clamping-ring moving device moving the first clamping-ring backward along the can-axis direction along with an advance of the die.

Abstract: An effective thread number in the thread section which is disposed on the mouth section of the bottle is formed to be 2.2. That is, the thread section is formed such that the thread section 13 should serve effectively in the mouth section such that an interval between a start position and an end position should be 2.0 to 2.5. In the bottle can member 11 which has such a thread section, an outer diameter of the thread section which is formed on the mouth section is 28 to 38 mm. Also, the thickness of the mouth section is 0.25 to 0.4 mm. The thread section which has the effective thread number 2.0 to 2.5 is formed by eight-thread per inch pitch. By doing this, it is possible to put the cap desirably.

Abstract: A method for producing a screw-top bottle-can and a screw-top bottle-can are provided so that a screw-thread can be formed without damaging an inner coating and a resealing operation can be improved. A shoulder part is formed by reducing a diameter of an opening part of a closed-end cylindrical body, a cylindrical part having an intermediate diameter between a major thread diameter and a minor thread diameter and a tapered part which is tapered from an upper end of the cylindrical part toward an opening-end part are formed above the shoulder part, and forming a screw-thread from the tapered part to the cylindrical part so as to form a starting part of the screw-thread at a middle part of the tapered part.

Abstract: Nip rollers 11 and 12 each including a pair of upper and lower rollers are disposed on an upstream side and a downstream side with a portion to be cut of an optical film F located therebetween. In the nip roller 12, a center axis C of the upper roller 12b is displaced relative to a center axis L of the drive roller 12a in a direction away from the portion to be cut. Upon cutting of the polarizing film F, the upper rollers 11b and 12b are simultaneously moved downward, so that a timing at which the downstream nip roller 12 nips the polarizing film F is delayed. Further, the nip roller 12 pulls the polarizing film F in the direction away from the portion to be cut, so that tension is applied to the polarizing film F. In this state, the polarizing film F is cut by a laser device 10.

Abstract: An effective thread number in the thread section which is disposed on the mouth section of the bottle is formed to be 2.2. That is, the thread section is formed such that the thread section 13 should serve effectively in the mouth section such that an interval between a start position and an end position should be 2.0 to 2.5. In the bottle can member 11 which has such a thread section, an outer diameter of the thread section which is formed on the mouth section is 28 to 38 mm. Also, the thickness of the mouth section is 0.25 to 0.4 mm. The thread section which has the effective thread number 2.0 to 2.5 is formed by eight-thread per inch pitch. By doing this, it is possible to put the cap desirably.

Abstract: A can manufacturing device in which a tool supporting base has: a plurality of working tool units that support a plurality of working tools; a supporting member that supports a plurality of working tool units; and a linear driving mechanism that reciprocates the working tool units with respect to the supporting member in the axial direction of a workpiece. The linear driving mechanism has: a guide section that is fixed on the supporting member with a base plate therebetween; a slide rail that is fixed on the working tool unit and slides along the guide section; an electromagnetic coil provided on the base plate; a magnet plate that is provided on the working tool unit and generates, between the electromagnetic coil and itself, a thrust force for the guide section; and a supply pipe that is provided at the electromagnetic coil and supplies coolant to the inside of the electromagnetic coil.

Abstract: An effective thread number in the thread section which is disposed on the mouth section of the bottle is formed to be 2.2. That is, the thread section is formed such that the thread section 13 should serve effectively in the mouth section such that an interval between a start position and an end position should be 2.0 to 2.5. In the bottle can member 11 which has such a thread section, an outer diameter of the thread section which is formed on the mouth section is 28 to 38 mm. Also, the thickness of the mouth section is 0.25 to 0.4 mm. The thread section which has the effective thread number 2.0 to 2.5 is formed by eight-thread per inch pitch. By doing this, it is possible to put the cap desirably.

Abstract: A suction table 9 is disposed at a cutting action position for a polarizing film F, and holding blocks 9a and 9b, which are different in height from each other, are disposed in proximity to each other along a transport direction on a surface of the suction table 9 to form a suction groove 14. Nip rollers 11 and 12 are disposed on front and rear sides of the suction table 9 to nip opposed ends of the polarizing film F. Further, the suction table 9 suction-holds the polarizing film F in a state that the polarizing film F is inclined with the suction groove 14 located below a portion to be cut. In this state, a laser device 10 scans the polarizing film F along the suction groove 14 to cut the polarizing film F in a width direction.

Abstract: An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.

Abstract: An oxide superconductor member is composed of a tape-shaped substrate, an intermediate layer formed on this substrate and an oxide superconductor thin film layer formed on this intermediate layer. A surface of the tape-shaped substrate is polished by continuously running the tape-shaped substrate. The polishing step includes initial polishing process and finishing process which are carried out such that the average surface roughness Ra of the substrate becomes 2 nanometers or less and the in-plane directionality of the intermediate layer becomes 5° or less after the polishing step.

Abstract: An effective thread number in the thread section which is disposed on the mouth section of the bottle is formed to be 2.2. That is, the thread section is formed such that the thread section 13 should serve effectively in the mouth section such that an interval between a start position and an end position should be 2.0 to 2.5. In the bottle can member 11 which has such a thread section, an outer diameter of the thread section which is formed on the mouth section is 28 to 38 mm. Also, the thickness of the mouth section is 0.25 to 0.4 mm. The thread section which has the effective thread number 2.0 to 2.5 is formed by eight-thread per inch pitch. By doing this, it is possible to put the cap desirably.

Abstract: In this bottle can manufacturing method, when a portion located at the skirt portion 7 is being molded, the portion extending in an opposite direction in which the male threaded portion 6 extends from a lower end 6a of the male threaded portion 6 over a range of at least approximately 180° along a circumferential direction of the skirt portion 7, the inner surfaces of molding pre-form portions of the first circumferential wall portion and the convexly curved surface portion from among the molding pre-form portions of the skirt portion 7 are pressed outward in the radial direction of the bottle can body.

Abstract: This apparatus for producing a bottle can includes a die-ring 22 for holding bottom of a closed-end cylindrical body W, and a tool holding part disposed opposite an opening part of the closed-end cylindrical body W, having plural processing tools 32 for shaping the closed-end cylindrical body W into various forms, the die-ring 22 and the tool holding part being held so that each of them can rotate relatively and move in the direction of a center line of the closed-end cylindrical body W relatively to each other, each of the processing tools shaping the closed-end cylindrical body into various forms to produce a bottle can, further including: a regulating means 110 for regulating forward movement of each of the processing tools 32 or the die-ring 22 to prevent the space between each of the processing tools 32 and the die-ring 22 at the forward end of the tool holding part or the die-ring, from lessening to be not more than a predetermined value.