Abstract: Disclosed is a corrugated paperboard box making machine which comprises a sheet feeding apparatus, a processing apparatus, a folder-gluer, a counter-ejector for stacking the box-structured corrugated paperboard sheets and separating them as a batch, a speed setting unit for setting a sheet feeding speed, and a control apparatus. The control apparatus is operable to execute a sheet feeding control processing of the sheet feeding apparatus such that a sheet feeding operation of feeding one corrugated paperboard sheet is successively repeated a number of times corresponding to the number of the given number of box-structured corrugated paperboard sheets in the batch, and a sheet feeding stop control processing of, when the sheet feeding speed is greater than an allowable speed, the sheet feeding apparatus such that the sheet feeding operation is stopped at least once after execution of the sheet feeding control processing.

Abstract: A corrugated paperboard sheet feeding apparatus comprises: a plurality of sheet feeding rollers; a grate formed with a plurality of opening portions for receiving the sheet feeding rollers and configured to switch between contact and non-contact states of the corrugated paperboard sheet with respect to the sheet feeding rollers; and a suction box configured to suck the corrugated paperboard sheet downwardly by gaps between the sheet feeding rollers and the opening portions, wherein each of the gaps is formed to be 10 mm or less, and wherein the apparatus further comprises a mat switch for detecting an entry of a person into an area in a sheet feeding section, and a control device for stopping movement of the sheet feeding rollers and/or the grate when the mat switch is turned on.

Abstract: In a case where a second client apparatus associated with a first client apparatus exists when the first client apparatus is determined as a client apparatus of a transfer target of authority, a server apparatus further determines the second client apparatus as the client apparatus of the transfer target of the authority, generates a permission screen corresponding to a client apparatus determined as the client apparatus of the transfer target of the authority, and transmits the generated permission screen.

Abstract: A steel wire rod includes, in terms of mass %, 0.95-1.10% C, 0.10-0.70% Si, 0.20-1.20% Mn, 0.90-1.60% Cr, 0-0.25% Mo, 0-25 ppm B, 0-0.020% P, 0-0.020% S, 0-0.0010% O, 0-0.030% N, and 0.010-0.100% Al. In a surface area of the steel wire rod, the Vickers hardness is HV 300 to HV 420, the area ratio of pearlite is 80% or more, and the area ratio of pro-eutectoid cementite is 2.0% or less. In an inner area of the steel wire rod, the area ratio of pearlite is 90% or more, and the area ratio of pro-eutectoid cementite is 5.0% or less. In the steel wire rod, the area ratio of pearlite blocks having an equivalent circle diameter of more than 40 ?m is 0.62% or less, and the difference in Vickers hardness between the surface area and a center portion is HV 20.0 or less.

Abstract: A steel wire for drawing includes, as a chemical composition, by mass %: C: 0.9% to 1.2%, Si: 0.1% to 1.0%, Mn: 0.2% to 1.0%, and Cr: 0.2% to 0.6%, limits Al, N, P, and S to be predetermined ranges, and includes one or more selected from the group consisting of Mo: 0% to 0.20%, and B: 0% to 0.0030%, a remainder of Fe and impurities; in which a metallographic structure includes pearlite, a volume fraction of the pearlite is 95% or higher, an average lamellar spacing of the pearlite is 50 nm to 75 nm, an average length of cementite in the pearlite is 2.0 ?m to 5.0 ?m, and a ratio of the number of grains of cementite with a length of 0.5 ?m or smaller to the cementite in the pearlite is 20% or lower.

Abstract: Disclosed is a corrugated paperboard sheet feeding apparatus which comprises: a plurality of sheet feeding rollers rotatable to feed a bottommost one of a plurality of stacked corrugated paperboard sheets; an up-and-down member movable up and down with respect to the plurality of sheet feeding rollers; a drive motor; a motion conversion mechanism configured to convert a unidirectional rotation of the drive motor into a motion for causing the up-and-down member to be moved up and lowered, and transmit the converted motion to the up-and-down member; and an up-and-down control section configured to perform variable speed control for the unidirectional rotation of the drive motor, according to a given up-and-down speed control pattern, wherein the up-and-down control section is operable to change the up-and-down speed control pattern in conformity to a sheet length of the corrugated paperboard sheet in a feeding direction.

Abstract: A corrugated paperboard sheet feeding apparatus comprises: a plurality of sheet feeding rollers; a grate formed with a plurality of opening portions for receiving the sheet feeding rollers and configured to switch between contact and non-contact states of the corrugated paperboard sheet with respect to the sheet feeding rollers; and a suction box configured to suck the corrugated paperboard sheet downwardly by gaps between the sheet feeding rollers and the opening portions, wherein each of the gaps is formed to be 10 mm or less, and wherein the apparatus further comprises a mat switch for detecting an entry of a person into an area in a sheet feeding section, and a control device for stopping movement of the sheet feeding rollers and/or the grate when the mat switch is turned on.

Abstract: A bearing part according the present invention includes, as the chemical composition, by mass %, C: 0.95% to 1.10%, Si: 0.10% to 0.70%, Mn: 0.20% to 1.20%, Cr: 0.90% to 1.60%, Al: 0.010% to 0.100%, N: 0.003% to 0.030%, P: 0.025% or less, S: 0.025% or less, O: 0.0010% or less, and optionally Mo: 0.25% or less, B: 0.0050% or less, Cu: 1.0% or less, Ni: 3.0% or less, and Ca: 0.0015% or less, and a remainder including Fe and impurities; metallographic structure includes a retained austenite, a spherical cementite and a martensite; an amount of the retained austenite is 15% to 25%, by volume %; an average grain size of prior-austenite is 8.0 ?m or less; and a number density of a void having a circle equivalent diameter of 0.02 ?m to 3.0 ?m is 2000 mm?2 or less in the metallographic structure.

Abstract: A bearing part according the present invention includes: C: 0.95% to 1.10%; Si: 0.10% to 0.70%; Mn: 0.20% to 1.20%; Cr: 0.90% to 1.60%; Al: 0.010% to 0.100%; N: 0.003% to 0.030%; P: 0.025% or less; S: 0.025% or less; O: 0.0010% or less; optionally one or more of the group consisting of Mo: 0.25% or less, B: 0.0050% or less, Cu: 1.0% or less, Ni: 3.0% or less, and Ca: 0.0015% or less; and a remainder including Fe and impurities; wherein a metallographic structure includes a retained austenite, a spherical cementite and a martensite; in which an amount of the retained austenite is 18% to 25%, by volume %; an average grain size of a prior-austenite is 6.0 ?m or less; an average grain size of the spherical cementite is 0.45 ?m or less; and a number density of the spherical cementite is 0.45×106 mm?2 or more in the metallographic structure.

Abstract: Disclosed is a corrugated paperboard sheet feeding apparatus which comprises: a plurality of sheet feeding rollers rotatable to feed a bottommost one of a plurality of stacked corrugated paperboard sheets; an up-and-down member movable up and down with respect to the plurality of sheet feeding rollers; a drive motor; a motion conversion mechanism configured to convert a unidirectional rotation of the drive motor into a motion for causing the up-and-down member to be moved up and lowered, and transmit the converted motion to the up-and-down member; and an up-and-down control section configured to perform variable speed control for the unidirectional rotation of the drive motor, according to a given up-and-down speed control pattern, wherein the up-and-down control section is operable to change the up-and-down speed control pattern in conformity to a sheet length of the corrugated paperboard sheet in a feeding direction.

Abstract: Disclosed is a high-strength Zn—Al coated steel wire for bridges with excellent corrosion resistance and fatigue properties, the Zn—Al coated steel wire includes: a steel wire; and a Zn—Al coating having a coating body layer and an Fe—Al alloy layer formed in an interface between a surface layer of the steel wire and the coating body layer, wherein a chemical composition of a core material of the steel wire includes, by mass %: C: 0.70% to 1.2%; Si: 0.01% to 2.5%; Mn: 0.01% to 0.9%; P: limited to 0.02% or less; S: limited to 0.02% or less; N: limited to 0.01% or less; and the balance including Fe and unavoidable impurities, wherein wire-drawn pearlite is most abundant microstructure among microstructures of the core material of the steel wire; wherein an average composition of the Zn—Al coating includes, by mass %, Al: 3.0 to 15.0%; and Fe: limited to 3.0% or less, and wherein the Fe—Al alloy layer has a thickness of 5 ?m or less.

Abstract: The corrugated paperboard sheet feeding apparatus comprises: a sheet feeding table; a front guide for regulating a front end of a corrugated paperboard sheet; a back guide for regulating a rear end of the corrugated paperboard sheet; and a guide element for separating the corrugated paperboard sheets so as to form a plurality of separate groups, wherein the guide element includes: a first guide element formed in the front guide to have a first separation guide surface; and a second guide element formed in the back guide to have a cutout portion, and a second separation guide surface, and wherein the cutout portion of the second guide element is formed in such a manner that an amount of concavity thereof is greater than an amount of protrusion of the lower edge of the first separation guide surface of the first guide element.

Abstract: A rolled wire rod includes, as a chemical component, by mass %, C: 0.95% to 1.10%, Si: 0.10% to 0.70%. Mn: 0.20% to 1.20%, and Cr: 0.90% to 1.60%, the balance consisting of Fe and unavoidable impurities, in which a metallographic structure of the rolled wire rod includes, by an area ratio, 90% to 100% of pearlite, 0% to 5% of proeutectoid cementite, and 0% to 10% of degenerate pearlite having granular cementite, an average size of a pearlite block of the pearlite is 1.0 ?m to 15 ?m, and a maximum size of the pearlite block is 1 to 4 times the average size.

Abstract: A sheet feeder of a corrugated paperboard box making machine includes a sheet feed table, feed rolls, an adjusting mechanism, a main unit, and a backing roller. The adjusting mechanism holds support plates pivotally supporting both ends of a first feed roll opposed to a second feed roll having an axis fixed to the main unit so as to allow an axis of the first feed roll to move with respect to the main unit. The support plates support a first backing roller via a connecting member connecting the support plates so that the first backing roller contacts with an outer peripheral surface of the first feed roll.

Abstract: The corrugated paperboard sheet feeding apparatus comprises: a sheet feeding table; a front guide for regulating a front end of a corrugated paperboard sheet; a back guide for regulating a rear end of the corrugated paperboard sheet; and a guide element for separating the corrugated paperboard sheets so as to form a plurality of separate groups, wherein the guide element includes: a first guide element formed in the front guide to have a first separation guide surface; and a second guide element formed in the back guide to have a cutout portion, and a second separation guide surface, and wherein the cutout portion of the second guide element is formed in such a manner that an amount of concavity thereof is greater than an amount of protrusion of the lower edge of the first separation guide surface of the first guide element.

Abstract: A rolled wire rod includes, as a chemical component, by mass %, C: 0.95% to 1.10%, Si: 0.10% to 0.70%. Mn: 0.20% to 1.20%, and Cr: 0.90% to 1.60%, the balance consisting of Fe and unavoidable impurities, in which a metallographic structure of the rolled wire rod includes, by an area ratio, 90% to 100% of pearlite, 0% to 5% of proeutectoid cementite, and 0% to 10% of degenerate pearlite having granular cementite, an average size of a pearlite block of the pearlite is 1.0 ?m to 15 ?m, and a maximum size of the pearlite block is 1 to 4 times the average size.

Abstract: Provided is a corrugated paperboard sheet printing device which includes a conveyance device for conveying a corrugated paperboard sheet fed out from a sheet feeding device, while suckingly holding the sheet; a plurality of printing units for printing the sheet through a series of printing processes; an information generator for generating basis weight information indicative of a basis weight of a corrugated paperboard sheet in each order; a storage device for storing therein a plurality of correction information for correcting a plurality of printing timings at each of which a respective one of the plurality of printing units performs the printing process on the sheet, in association with the basis weight information; and a controller for, based on the correction information, correcting the printing timing in each of the printing units, and causing the printing unit to operate according to the corrected printing timing.

Abstract: A sheet feeder of a corrugated paperboard box making machine includes a sheet feed table, feed rolls, an adjusting mechanism, a main unit, and a backing roller. The adjusting mechanism holds support plates pivotally supporting both ends of a first feed roll opposed to a second feed roll having an axis fixed to the main unit so as to allow an axis of the first feed roll to move with respect to the main unit. The support plates support a first backing roller via a connecting member connecting the support plates so that the first backing roller contacts with an outer peripheral surface of the first feed roll.

Abstract: Rubber-cord complex 9 having improved wet heat adhesive property between rubber and cord. The rubber-cord complex includes cord 10 comprising drawn plated wire 17 prepared by providing brass plated layer 16E on surface of element wire 15 and drawing the resulting plated wire and rubber 12 vulcanized and bonded to cord 10. The rubber-cord complex 9 has adhesion reaction layer 25 (formed by cross-linking sulfur and copper) between rubber 12 and brass plated layer 16E. Adhesion reaction layer 25 has average thickness of 50-1,000 nm. Interface S between adhesion reaction layer 25 and the rubber has a fractal dimension of 1.001-1.300 in a wet heat deterioration state after being subjected to vulcanization to bond rubber 12 thereto and being held at a temperature of 50-100° C. and a humidity of 60-100% for one hour to 20 days.

Abstract: A rubber-cord complex having an improved wet heat adhesive property between a rubber and a cord comprising a drawn plated wire, and including a metal cord comprising a drawn plated wire prepared by providing a brass plated layer on the surface of an element wire and drawing the resulting plated wire, and a rubber vulcanized and bonded to the cord, wherein in a wet heat deterioration state of the drawn plated wire after being subjected to the vulcanization to bond the rubber thereto and further held under an atmosphere having a temperature of 50 to 100° C. and a humidity of 60 to 100% for one hour to 20 days, the average grain size of crystal grains present in the brass plated layer is not more than 50 nm, and the grain boundary of the crystal grains has a fractal dimension of 1.001 to 1.500.