Abstract: A sheet feeding device includes a sheet feed tray, a conveying roller pair, and a contact-and-separation mechanism. The sheet feed tray is detachably attached to a body of an image forming apparatus. The conveying roller pair is disposed in the body of the image forming apparatus, conveys a sheet fed from the sheet feed tray attached to the body of the image forming apparatus, and includes a driving roller and a driven roller. The driving roller is rotated by a drive mechanism. The driven roller is rotated by the driving roller. The contact-and-separation mechanism separates the driven roller from the driving roller in conjunction with detachment of the sheet feed tray from the body of the image forming apparatus and brings the driven roller into contact with the driving roller by the drive mechanism when the sheet feed tray is detached from the body of the image forming apparatus.

Abstract: A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier performs liquid application of applying liquid to a part of the medium conveyed by the conveyor, the medium being at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier adjusts an application amount of the liquid in the liquid application according to an environmental condition that is a factor that affects a binding strength with which the bundle of media is bound by pressing and deforming of the crimper.

Abstract: A device for producing a foamed-food-product comprises a container which stores a liquid-food-product and is filled with filling gas at a pressure higher than atmospheric pressure, the filling gas containing argon or nitrogen as a main component; an agitator provided at the bottom of the inside of the container; a driving unit detachably connected to the bottom of the container to rotate the agitator, agitate the liquid-food-product in the container by the rotation of the agitator, and mix the filling gas in the liquid-food-product; and a dispenser mounted to the container and having a discharge outlet and a gas filling inlet for injecting the filling gas into the container, the dispenser causing the liquid-food-product having the filling gas mixed therein to be discharged from the discharge outlet by pressure in the container, so that the liquid-food-product foams while being discharged from the discharge outlet and is made into the foamed-food-product.

Abstract: A medium processing apparatus includes a conveyor, a liquid applier, and a crimper. The conveyor conveys a medium. The liquid applier performs liquid application of applying liquid to a part of the medium conveyed by the conveyor, the medium being at least one medium. The crimper presses and deforms a bundle of media including the medium to which the liquid is applied by the liquid applier, to bind the bundle of media. The liquid applier adjusts an application amount of the liquid in the liquid application according to an environmental condition that is a factor that affects a binding strength with which the bundle of media is bound by pressing and deforming of the crimper.

Abstract: A sleeve is provided inside a body configuring a channel selector valve, and first and second guide portions with which outer peripheries of first and second land portions of a valve body are in sliding contact are formed on one end side and the other end side of the sleeve. The first and second guide portions are formed to axially overlap with the first and second land portions so as to abut the first and second land portions at all times when the valve body axially moves. The valve body includes a plurality of communicating paths penetrating through the valve body in the axial direction, and, in the sleeve, a first space formed on one end side of the valve body and a second space formed on the other end side of the valve body communicate with each other via the communicating paths.

Abstract: A sheet stacking tray includes a first conveyor, a second conveyor, a sheet stopper, a first full-load detector, a second full-load detector, and a plurality of motors. The plurality of motors maintain the sheet stopper at a protruding position to block a sheet conveyed by the first conveyor until the first full-load detector outputs a signal indicating that a sheet bundle is fully loaded, shift the sheet stopper to a lowered position to allow the sheet bundle to pass when the first full-load detector outputs the signal indicating that the sheet bundle is fully loaded, drive the first conveyor and the second conveyor together to convey the sheet bundle when the sheet stopper shifts to the lowered position, and stop the second conveyor and drive only the first conveyor, when the second full-load detector detects a leading edge of the sheet bundle.

Abstract: A device for producing a foamed-food-product comprises a container which stores a liquid-food-product and is filled with filling gas at a pressure higher than atmospheric pressure, the filling gas containing argon or nitrogen as a main component; an agitator provided at the bottom of the inside of the container; a driving unit detachably connected to the bottom of the container to rotate the agitator, agitate the liquid-food-product in the container by the rotation of the agitator, and mix the filling gas in the liquid-food-product; and a dispenser mounted to the container and having a discharge outlet and a gas filling inlet for injecting the filling gas into the container, the dispenser causing the liquid-food-product having the filling gas mixed therein to be discharged from the discharge outlet by pressure in the container, so that the liquid-food-product foams while being discharged from the discharge outlet and is made into the foamed-food-product.

Abstract: A sheet separating device includes a receptacle, a pickup rotator, an air supplier, and a sheet floating restraint. The receptacle is configured to hold a plurality of sheets. The pickup rotator is configured to feed the plurality of sheets one by one from the receptacle. The air supplier includes an air outlet disposed ahead of the receptacle in a sheet feeding direction in which the plurality of sheets is fed. The air supplier is configured to blow air out from the air outlet toward a leading end of the plurality of sheets, held on the receptacle, in the sheet feeding direction. The sheet floating restraint is configured to restrain floating of a part of the plurality of sheets separated from each other by the air blown out from the air outlet.

Abstract: A sheet stacking tray includes a first conveyor, a second conveyor, a sheet stopper, a first full-load detector, a second full-load detector, and a plurality of motors. The plurality of motors maintain the sheet stopper at a protruding position to block a sheet conveyed by the first conveyor until the first full-load detector outputs a signal indicating that a sheet bundle is fully loaded, shift the sheet stopper to a lowered position to allow the sheet bundle to pass when the first full-load detector outputs the signal indicating that the sheet bundle is fully loaded, drive the first conveyor and the second conveyor together to convey the sheet bundle when the sheet stopper shifts to the lowered position, and stop the second conveyor and drive only the first conveyor, when the second full-load detector detects a leading edge of the sheet bundle.

Abstract: A hydraulic control apparatus is provided including: an electromagnetic valve that has an input port communicating with a supply destination unit of oil and a control port that is switched between communication and disconnection by resultant force of a hydraulic pressure of the supply destination unit and electromagnetic force; a variable displacement pump which has a suction port communicating with a supply source of the oil, an ejection port communicating with the supply destination unit, and a control chamber communicating with the control port and rotates in accordance with drive of the supply destination unit, in which an amount of the oil ejected to the supply destination unit through the ejection port changes in accordance with a pressure in the control chamber; and a control unit that controls a value of a necessary current that is caused to flow through the electromagnetic valve.

Abstract: A sleeve is provided inside a body configuring a channel selector valve, and first and second guide portions with which outer peripheries of first and second land portions of a valve body are in sliding contact are formed on one end side and the other end side of the sleeve. The first and second guide portions are formed to axially overlap with the first and second land portions so as to abut the first and second land portions at all times when the valve body axially moves. The valve body includes a plurality of communicating paths penetrating through the valve body in the axial direction, and, in the sleeve, a first space formed on one end side of the valve body and a second space formed on the other end side of the valve body communicate with each other via the communicating paths.

Abstract: A sheet separating device includes a receptacle, a pickup rotator, an air supplier, and a sheet floating restraint. The receptacle is configured to hold a plurality of sheets. The pickup rotator is configured to feed the plurality of sheets one by one from the receptacle. The air supplier includes an air outlet disposed ahead of the receptacle in a sheet feeding direction in which the plurality of sheets is fed. The air supplier is configured to blow air out from the air outlet toward a leading end of the plurality of sheets, held on the receptacle, in the sheet feeding direction. The sheet floating restraint is configured to restrain floating of a part of the plurality of sheets separated from each other by the air blown out from the air outlet.

Abstract: A hydraulic control apparatus is provided including: an electromagnetic valve that has an input port communicating with a supply destination unit of oil and a control port that is switched between communication and disconnection by resultant force of a hydraulic pressure of the supply destination unit and electromagnetic force; a variable displacement pump which has a suction port communicating with a supply source of the oil, an ejection port communicating with the supply destination unit, and a control chamber communicating with the control port and rotates in accordance with drive of the supply destination unit, in which an amount of the oil ejected to the supply destination unit through the ejection port changes in accordance with a pressure in the control chamber; and a control unit that controls a value of a necessary current that is caused to flow through the electromagnetic valve.

Abstract: In a combustion experimental apparatus to obtain the positions of flames formed inside a tube (1), it is possible to adjust a temperature gradient in a longitudinal direction applied to the tube, by including a temperature-adjusting fluid supply device (2) to cause a temperature-adjusting fluid to flow along the tube.

Abstract: A paper feeding device that includes, in a drive transmission mechanism to a paper feeding roller that delivers paper, a drive member provided on an apparatus body side as a member to transmit torque in a given direction for delivery of paper from a conveying motor to the paper feeding roller and a driven member provided on the paper feeding roller side. By relatively rotating the drive member and the driven member to form a coupling state of the members before an instruction to start the delivery of paper is output, the rotation of the paper feeding roller is started without a time lag when the instruction to start the delivery of paper is output.

Abstract: A solenoid section of a solenoid three-way valve includes a yoke attached to a valve housing and formed from a bottomed cylindrical main yoke and an auxiliary yoke closing an open end of the main yoke, a coil assembly inside the yoke, a fixed core slidably fitted into a hollow portion of a bobbin and abutted against a ceiling wall of the main yoke, a movable core facing the fixed core and passing through the auxiliary yoke, and a coil spring compressed between the cores. The fixed core is abutted against the wall by a predetermined spring load and by electromagnetic attraction force between the core and wall based on coil energization. A valve rod is slidably supported in a housing hole, having one end separably abutted against an outer end of the movable core and an opposite end abutted against a valve body.

Abstract: A solenoid section of a solenoid three-way valve includes a yoke attached to a valve housing and formed from a bottomed cylindrical main yoke and an auxiliary yoke closing an open end of the main yoke, a coil assembly inside the yoke, a fixed core slidably fitted into a hollow portion of a bobbin and abutted against a ceiling wall of the main yoke, a movable core facing the fixed core and passing through the auxiliary yoke, and a coil spring compressed between the cores. The fixed core is abutted against the wall by a predetermined spring load and by electromagnetic attraction force between the core and wall based on coil energization. A valve rod is slidably supported in a housing hole, having one end separably abutted against an outer end of the movable core and an opposite end abutted against a valve body.

Abstract: An image forming apparatus includes a sheet bundle housing unit that houses recording sheets piled as a sheet bundle; a swing member having a sheet contact portion on one end side, and swinging between a projection position at which the sheet contact portion projects above a sheet placement surface of the housing unit and a non-projection position at which the sheet contact portion does not project above the sheet placement surface, the swing member moving from the projection position to the non-projection position by the sheet bundle; a sheet detection unit that detects the sheet bundle in the housing unit using the swing member; and an interlocking mechanism that moves the swing member to the non-projection position, regardless of presence or absence of the sheet bundle in the housing unit, by interlocking with the housing unit being pulled out from an apparatus body.

Abstract: A paper feeding device that includes, in a drive transmission mechanism to a paper feeding roller that delivers paper, a drive member provided on an apparatus body side as a member to transmit torque in a given direction for delivery of paper from a conveying motor to the paper feeding roller and a driven member provided on the paper feeding roller side. By relatively rotating the drive member and the driven member to form a coupling state of the members before an instruction to start the delivery of paper is output, the rotation of the paper feeding roller is started without a time lag when the instruction to start the delivery of paper is output.

Abstract: An image forming apparatus includes a sheet bundle housing unit that houses recording sheets piled as a sheet bundle; a swing member having a sheet contact portion on one end side, and swinging between a projection position at which the sheet contact portion projects above a sheet placement surface of the housing unit and a non-projection position at which the sheet contact portion does not project above the sheet placement surface, the swing member moving from the projection position to the non-projection position by the sheet bundle; a sheet detection unit that detects the sheet bundle in the housing unit using the swing member; and an interlocking mechanism that moves the swing member to the non-projection position, regardless of presence or absence of the sheet bundle in the housing unit, by interlocking with the housing unit being pulled out from an apparatus body.