Abstract: An image forming apparatus includes a transfer portion, a fixing unit, a conveyance belt configured to convey a sheet from the transfer portion toward the fixing unit, a driving portion configured to drive the conveyance belt, and a controller configured to control the driving portion. The controller is configured to, in a case of switching the image forming apparatus to a standby state in which the image forming apparatus is ready to start an image forming operation and stands by for input of an image forming job, execute preheating in which the fixing unit is preliminarily heated, and cause the driving portion to rotate the conveyance belt while the preheating is executed.

Abstract: A coupling portion of a lower travelling body of a mobile crane is arranged such that, in plan view, a right front straight line, which passes through any point included in a front load receiving surface and through any point included in a right front load transmission surface, passes through a right front end roller or a point on the front side relative to the right front end roller and that a left front straight line, which passes through any point included in the front load receiving surface and through any point included in a left front load transmission surface, passes through a left front end roller or a point on the front side relative to the left front end roller.

Abstract: A cooling structure according to an aspect of the present invention includes a press forming member including a groove part and a bank part provided around the groove part, a flow path upper lid positioned on a position covering the groove part of the press forming member, and a joint portion which joins opposing surfaces of the flow path upper lid and the bank part to form a flow path through which a cooling liquid is capable of flowing, in which the press forming member and the flow path upper lid are plated steel sheets having a base steel sheet and having an Al-based plating having a film thickness of 10.0 ?m or more or a Zn-based plating having a film thickness of 5.0 ?m or more, in which a sheet thickness of the plated steel sheets 0.3 mm to 1.2 mm, the joint portion is formed of a joining metal brazing the base steel sheets of the press forming member and the flow path upper lid, and a partial flow path interval is 20 mm or less and a joining width is 3 mm or more.

Abstract: A cooling structure according to an aspect of the present invention includes a press forming member including a groove part and a bank part provided around the groove part, a flow path upper lid which is a flat sheet overlapped at a position covering the groove part of the press forming member and forms a flat cooling surface, and a laser weld which joins opposing surfaces of the flow path upper lid and the bank part to form a flow path through which a cooling liquid is capable of flowing, in which the press forming member and the flow path upper lid are plated steel sheets including a base steel sheet and an Al-based plating, the flow path has a parallel flow path portion in which a plurality of partial flow paths extending along a first direction are arranged in a second direction orthogonal to the first direction, and in the parallel flow path portion, an interval between adjacent partial flow paths is 20 mm or less.

Abstract: A desalination performance restoration agent for a cellulose acetate membrane contains: a solvent; and a modified polyvinyl alcohol mixed in the solvent. The modified polyvinyl alcohol has an acetyl group structure in at least part of polyvinyl alcohol.

Abstract: An image forming apparatus includes a transfer unit including a transfer nip portion, a fixing unit including a fixing nip portion, a suction belt conveyance unit arranged between the transfer unit and the fixing unit and conveying the sheet toward the fixing nip, a first casing, a second casing connected to the first casing and supporting the fixing unit, a first positioning portion, and, a second positioning portion. The first positioning portion is disposed in the first casing and performs positioning of the suction belt conveyance unit in a predetermined direction along a surface perpendicular to a width direction of the sheet. The second positioning portion is disposed in the second casing and performs positioning of the suction belt conveyance unit in the predetermined direction.

Abstract: An image forming apparatus includes a transfer portion, a fixing unit, a conveyance belt configured to convey a sheet from the transfer portion toward the fixing unit, a driving portion configured to drive the conveyance belt, and a controller configured to control the driving portion. The controller is configured to, in a case of switching the image forming apparatus to a standby state in which the image forming apparatus is ready to start an image forming operation and stands by for input of an image forming job, execute preheating in which the fixing unit is preliminarily heated, and cause the driving portion to rotate the conveyance belt while the preheating is executed.

Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path of the battery pack is made of an Al-based plated steel sheet.

Abstract: This battery unit is a battery unit including a battery pack that houses a battery cell, and a water-cooling medium flow path formed outside a bottom surface of the battery pack, in which the water-cooling medium flow path is made of a Zn-based plated steel sheet, an inorganic film or a resin film is formed as a chemical conversion coating film on a surface of the Zn-based plated steel sheet, and the inorganic film contains a Si-based component or a Zr-based component as a main component.

Abstract: An image forming apparatus includes a transfer portion, a fixing unit, a conveyance belt configured to convey a sheet from the transfer portion toward the fixing unit, a driving portion configured to drive the conveyance belt, and a controller configured to control the driving portion. The controller is configured to, in a case of switching the image forming apparatus to a standby state in which the image forming apparatus is ready to start an image forming operation and stands by for input of an image forming job, execute preheating in which the fixing unit is preliminarily heated, and cause the driving portion to rotate the conveyance belt while the preheating is executed.

Abstract: An image forming apparatus includes a transfer unit including a transfer nip portion, a fixing unit including a fixing nip portion, a suction belt conveyance unit arranged between the transfer unit and the fixing unit and conveying the sheet toward the fixing nip, a first casing, a second casing connected to the first casing and supporting the fixing unit, a first positioning portion, and, a second positioning portion. The first positioning portion is disposed in the first casing and performs positioning of the suction belt conveyance unit in a predetermined direction along a surface perpendicular to a width direction of the sheet. The second positioning portion is disposed in the second casing and performs positioning of the suction belt conveyance unit in the predetermined direction.

Abstract: Art for spot welding able to suppress penetration of hydrogen, one of the factors behind delayed fracture, at the time of spot welding, that is, a spot welding method in which at one or both of the surfaces of the steel sheets becoming the facing surfaces of the overlaid steel sheets, a location where the steel sheets contact each other to form a contact part at the time of initial squeezing of the spot welding is worked in advance to form a plurality of lines running through the contact part and connected to the outside of the contact part and the spot welding is performed at the location of the contact part and also a steel sheet in which the plurality of lines are formed in advance at the location becoming a contact part when steel sheets contact each other at the time of initial squeezing in the spot welding.

Abstract: An image forming apparatus includes a controller configured to control a conveyance portion to apply a first suction force to a circumferential surface while conveying a sheet from a transfer portion to a fixing portion by a conveyance portion. The controller is configured to execute a first switching process of switching the suction force applied to the circumferential surface from the first suction force to the second suction force while rotating the belt, in a case where a leading end of the sheet has reached the fixing nip portion in a state in which the sheet is nipped by the transfer nip portion.

Abstract: According to the present invention, provided are a joint structure (100) which joins a plurality of overlapped steel members (110, 120) using a connecting element (130) having a shaft portion (131), the joint structure including: a first steel member (110); and one or more of second steel members (120) overlapping the first steel member (110), in which the shaft portion (131) of the connecting element (130) is penetrated through the second steel member (120), and the shaft portion (131) of the connecting element (130) and the second steel member (120) are joined by friction welding, and the shaft portion (131) and the first steel member (110) are joined by friction welding, and a joining method for obtaining the joint structure.

Abstract: An image forming apparatus includes a controller configured to control a conveyance portion to apply a first suction force to a circumferential surface while conveying a sheet from a transfer portion to a fixing portion by a conveyance portion. The controller is configured to execute a first switching process of switching the suction force applied to the circumferential surface from the first suction force to the second suction force while rotating the belt, in a case where a leading end of the sheet has reached the fixing nip portion in a state in which the sheet is nipped by the transfer nip portion.

Abstract: Art for spot welding able to suppress penetration of hydrogen, one of the factors behind delayed fracture, at the time of spot welding, that is, a spot welding method in which at one or both of the surfaces of the steel sheets becoming the facing surfaces of the overlaid steel sheets, a location where the steel sheets contact each other to form a contact part at the time of initial squeezing of the spot welding is worked in advance to form a plurality of lines running through the contact part and connected to the outside of the contact part and the spot welding is performed at the location of the contact part and also a steel sheet in which the plurality of lines are formed in advance at the location becoming a contact part when steel sheets contact each other at the time of initial squeezing in the spot welding.

Abstract: A spot welding method able to simply prevent liquid metal embrittlement cracks in spot welding of plated steel sheets, comprising, before spot welding, removing the plating at least in a zone including the inside of a circle centered at a scheduled location where the center of the nugget is formed and having an outer circumference of the inside of the outer edge of a weld affected zone or a zone at the mated surfaces of the steel sheets to be welded at the inside of a circle sharing a center of a scheduled location becoming the center of the nugget formed at the mated surfaces of the steel sheets and having an outer circumference of the inside of the outer edge of a weld affected zone.

Abstract: A spot welding method able to simply prevent liquid metal embrittlement cracks in spot welding of plated steel sheets, comprising, before spot welding, removing the plating at least in a zone including the inside of a circle centered at a scheduled location where the center of the nugget is formed and having an outer circumference of the inside of the outer edge of a weld affected zone or a zone at the mated surfaces of the steel sheets to be welded at the inside of a circle sharing a center of a scheduled location becoming the center of the nugget formed at the mated surfaces of the steel sheets and having an outer circumference of the inside of the outer edge of a weld affected zone

Abstract: Provided is an emergency light that can be readily carried by a person even when the person goes outdoors and that can signal occurrence of an emergency. The emergency light includes an illumination light emitting unit that emits light for illumination to a surrounding, a signaling light emitting unit that emits light for signaling occurrence of an emergency to the surrounding, the signaling light emitting unit being provided separately of the illumination light emitting unit, and a transmitter that transmits identifier information over a predetermined area when the signaling light emitting unit has emitted a signaling light.