Abstract: A tension measuring method installs a reel having a cylindrical coil forming part on a cable to be measured, forms a coil by winding a conductor around the coil forming part, measures a magnetic hysteresis loop of the cable by supplying a current to the coil to generate a magnetic field, and computes a tension of the cable using a parameter determined from the hysteresis loop. A magnetic field sensor and a magnetic flux sensor are provided inside a through hole in the coil forming part, and the cable is positioned inside the through hole. The magnetic field is varied so that the hysteresis loop includes a near-saturation magnetization region, to measure the hysteresis loop using the sensors. The parameter is selected from a magnetic flux or a magnetic flux density, a remanent magnetization, a coercivity, a magnetic permeability, and a hysteresis loss in the near-saturation magnetization region.

Abstract: Provided is a manufacturing method for a rectangular can according to which it is possible to bring an angle formed by a step surface of a step provided in a rectangular can body and an inner wall surface of the rectangular can body closer to 90 degrees. In a step-forming step, using a die 310 that is provided on an outer wall surface side of a sidewall on which the step is to be formed, a mandrel 410 for sandwiching the sidewall between the mandrel 410 and the die 310 on the bottom side relative to a portion where the step is to be formed in the inner wall surface on which the step is to be formed, and a punch 420 for pressing the side opposite to the bottom side relative to the portion where the step is to be formed in the inner wall surface on which the step is to be formed and compressing the sidewall between the punch 420 and the die 310, the step is formed by performing multiple instances of a pressing operation performed by the punch 420.

Abstract: A tension measuring method installs a reel having a cylindrical coil forming part on a cable to be measured, forms a coil by winding a conductor around the coil forming part, measures a magnetic hysteresis loop of the cable by supplying a current to the coil to generate a magnetic field, and computes a tension of the cable using a parameter determined from the hysteresis loop. A magnetic field sensor and a magnetic flux sensor are provided inside a through hole in the coil forming part, and the cable is positioned inside the through hole. The magnetic field is varied so that the hysteresis loop includes a near-saturation magnetization region, to measure the hysteresis loop using the sensors. The parameter is selected from a magnetic flux or a magnetic flux density, a remanent magnetization, a coercivity, a magnetic permeability, and a hysteresis loss in the near-saturation magnetization region.

Abstract: The present invention provides a container, a lid body and a method of seaming a container, in which the influence of a load at the time of seaming can be made as small as possible, in the container having a seaming flange portion and a seaming curl portion notched. In a container of a structure in which a seaming flange portion formed at an open end portion of a container body, and a seaming curl portion formed on a periphery of a bottom lid are seamed to be joined to each other, and in which a notch is formed in at least one of the seaming curl portion and the seaming flange portion, a short and small curl portion in which a width of protrusion of the seaming curl portion is partially short is formed in at least one of circumferentially opposite sides of the notched portion.

Abstract: A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained.

Abstract: An assembling method for a battery outer case including the steps of: molding a metal container main body with notched holes formed beforehand in its body portion for exposing terminals connected to a flat battery pack; receiving a flat battery pack in the metal container main body while fitting the terminals into the notched holes; covering the metal container main body with a metal lid; and superposing an open end portion of a metal container main body and an end portion of the metal lid with each other thereby to join them to each other by double seaming.

Abstract: The present invention provides a container, a lid body and a method of seaming a container, in which the influence of a load at the time of seaming can be made as small as possible, in the container having a seaming flange portion and a seaming curl portion notched. In a container of a structure in which a seaming flange portion formed at an open end portion of a container body, and a seaming curl portion formed on a periphery of a bottom lid are seamed to be joined to each other, and in which a notch is formed in at least one of the seaming curl portion and the seaming flange portion, a short and small curl portion in which a width of protrusion of the seaming curl portion is partially short is formed in at least one of circumferentially opposite sides of the notched portion.

Abstract: An assembling method for a battery outer case including the steps of: molding a metal container main body with notched holes formed beforehand in its body portion for exposing terminals connected to a flat battery pack; receiving a flat battery pack in the metal container main body while fitting the terminals into the notched holes; covering the metal container main body with a metal lid; and superposing an open end portion of a metal container main body and an end portion of the metal lid with each other thereby to join them to each other by double seaming.

Abstract: A battery outer case can provide space saving by reducing the length of protrusion of joint portions between a metal container main body and a metal lid, is free from a thermal influence, and can make it unnecessary to employ additional or extra parts such as a gasket. The battery outer case includes the metal container main body having at least one surface opened with a flat battery pack composed of flat type batteries received therein, and a metal lid for closing an opening formed in the metal container main body. The inside of the container is in communication with the outside thereof so as to have air permeability, and an open end periphery of the metal container main body and a lid end periphery of the metal lid are joined to each other by seaming.

Abstract: A tension measurement apparatus that can carry out tension measurement of superior reproducibility with high sensitivity even for a target object of a stranded wire structure is provided. A cylindrical magnetizer arranged to surround a portion of a long magnetic element that becomes the target object of measurement direct-current magnetizes the magnetic element in the longitudinal direction up to the range of approach to saturation magnetization. Using a Hall element (magnetic sensor) arranged in proximity to the magnetic element at the central region in the longitudinal direction of the magnetic domain, the spatial magnetic field intensity in the neighborhood of the surface of the magnetic element, greatly differing corresponding to stress variation, is detected. Based on the detection value, the tension acting on the magnetic element is measured. Accordingly, a measurement result of superior reproducibility with high sensitivity is obtained.

Abstract: A rectangular drawn container and a method for forming the same are provided which can prevent warpage of a bottom portion of a container in a simple way. In a rectangular drawn container that is provided with a polygonal bottom panel portion and a body portion of a polygonal tubular shape rising from peripheral edges of the bottom panel portion, a convex bead is formed on the bottom panel portion at a location in the vicinity of at least one bottom side rounded portion among bottom side rounded portions of the body portion, at an inner side of the container so as to extend in parallel to the at least one bottom side rounded portion at a predetermined distance therefrom. The bottom panel portion takes a rectangular shape, and the bead is arranged along a pair of bottom side rounded portions at long sides of the bottom panel portion.

Abstract: A battery outer case can provide space saving by reducing the length of protrusion of joint portions between a metal container main body and a metal lid, is free from a thermal influence, and can make it unnecessary to employ additional or extra parts such as a gasket. The battery outer case includes the metal container main body having at least one surface opened with a flat battery pack composed of flat type batteries received therein, and a metal lid for closing an opening formed in the metal container main body. The inside of the container is in communication with the outside thereof so as to have air permeability, and an open end periphery of the metal container main body and a lid end periphery of the metal lid are joined to each other by seaming.

Abstract: A task of the present invention is to provide a container sealing structure capable of easily and surely unsealing a container and hygienically maintaining an opening portion at the time of resealing, and a method of manufacturing the sealing structure. The container sealing structure of the present invention is configured by integrally forming a pouring portion (12) and a cap portion (16). An easily breakable portion (15) is formed in the container sealing structure. The pouring portion (12) and the cap portion (16) includes an intermediate wall (13) which is formed by bending downwardly from an upper end portion of an inner wall (11) and an outer wall (14) which is formed by bending upwardly from a lower end portion of the intermediate wall (13).

Abstract: A network sales system with a settling server and a seller server connected by a network open to third parties, is disclosed. A user terminal and the seller server are connected to each other by a first network, and the settling server and the seller server are connected to each other by a second network. The second network is not accessible from general user terminals. Important personal information such as a credit number of the user is transmitted and received over only the second network, and the settling server is connected only to the second network. Therefore, the credit information is prevented from being stolen by third parties, and unauthorized third parties are prevented from entering settling server. The network sales system thus has increased security.

Abstract: A detecting coil device mounted on part of a cable to evaluate the degree of corrosion of the cable, which is used, for example, on suspension or skew bridges. The detecting coil device is provided with a detecting coil and Hall elements. A magnetizer having a magnetizing coil is mounted as to enclose the cable and the detecting coil device. When current flows through the magnetizing coil, it magnetizes the cable. The magnetic field strength is detected by the Hall element, and the amount of magnetic flux passing through the cable is detected using the detecting coil. The cross-sectional area of the cable is also calculated on the basis of the magnetic field strength and the amount of magnetic flux which are detected and the permeability of the cable. The degree at which the cross-sectional area of the cable is decreased (the corrosion degree) is evaluated by comparing the calculated cross-sectional area of the cable with the cross-sectional area of a reference cable.