Patent application number | Description | Published |
20090003900 | FIXING DEVICE, CARRYING DEVICE AND IMAGE FORMING APPARATUS - The conveying device of the present invention comprises a cylindrical first roller, a cylindrical second roller that has a surface hardness higher than a surface hardness of the first roller, and a belt placed in a state surrounding either the first roller or the second roller. The conveying device moves an object to be conveyed by bringing the first roller and the second roller in pressure contact with each other via the belt and making the object pass through a nip portion formed of the belt and the first roller or the second roller facing the belt. A length in a lengthwise direction of an outer peripheral portion of the first roller is shorter than a length in a lengthwise direction of an outer peripheral portion of the second roller. | 01-01-2009 |
20090317100 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device includes a fixing roller, a pressure roller and a soaking roller. Temperature of the soaking roller, which contacts with the pressure roller, is measured by a temperature measurement section. This makes it possible to precisely estimate the temperature distribution of the fixing roller and the pressure roller including a non-paper feed area of paper sheets. Based on the temperature of the soaking roller, fixing operation is controlled by a fixing operation control section. Thereby, optimal control can be implemented to suppress the temperature rise in the non-paper feed area according to the estimated temperature distribution of the fixing roller and the pressure roller. | 12-24-2009 |
20110229170 | FIXING APPARATUS AND IMAGE FORMING APPARATUS - An excitation coil positioned along an axial direction of a fixing rotational body having a heat generating layer causes the heat generating layer to generate heat by electromagnetic induction. Magnetic flux shielding members positioned outside the excitation coil in a radial direction of the fixing rotational body cover at least one end of a maximum sheet passing region. A controller moves the magnetic flux shielding members along the excitation coil, and when a fed sheet has a width smaller than a width of the maximum sheet passing region, a center hole of the excitation coil is more widely covered. In a plan view, a circumference of each of the magnetic flux shielding members partially and obliquely crosses with the center hole in the axial direction of the fixing rotational body. | 09-22-2011 |
20120045240 | FIXING DEVICE AND IMAGE FORMING APPARATUS - A fixing device including a fixing rotational body and fixing images on sheets of various sizes, comprising: a main excitation coil heating the rotational body by electromagnetic induction and having an effective heating length L | 02-23-2012 |
20130142533 | FIXING DEVICE AND IMAGE FORMING DEVICE - Provided is a fixing device comprising: a fixing rotating body; a magnetizing coil; a pressing member forming a fixing nip through which a recording sheet passes; a demagnetizing coil unit set including a pile of demagnetizing coil units each including demagnetizing coils of different sizes, and canceling out part of magnetic flux generated by the magnetizing coil in a non-sheet-passing region; a sheet information acquisition unit acquiring sheet information including information relating to a width of the recording sheet; and an operation control unit controlling each demagnetizing coil according to the width, wherein in each demagnetizing coil unit, the demagnetizing coils are arranged such that a smaller demagnetizing coil is surrounded by a larger demagnetizing coil and the demagnetizing coils are in a same plane extending along a surface of the magnetizing coil, and a combination of sizes of the demagnetizing coils differs among the demagnetizing coil units. | 06-06-2013 |
Patent application number | Description | Published |
20120098240 | VEHICLE AIR BAG SYSTEM - A vehicle air bag system includes a side air bag that is housed folded up in a vehicle seat and that deploys between an occupant seated in the vehicle seat and a front side door by receiving a supply of gas when a side collision occurs, and a curtain air bag that is housed folded up in an upper edge portion of a door opening and that deploys in a curtain shape downward by receiving a supply of gas when a side collision and a rollover occur. The curtain air bag has a delay chamber that deploys later than a main chamber by receiving a supply of gas from the main chamber via a narrowed passage. The delay chamber deploys with a lower end side below a beltline and in an area that overlaps with a deployment area of a side air bag. | 04-26-2012 |
20120126517 | CURTAIN AIR BAG SYSTEM - A curtain air bag system includes a main deployment portion for an occupant seated in a front seat, that is housed folded up in an upper edge portion of an opening in a vehicle body, and inflates by receiving a supply of gas when the vehicle is in a side collision and when the vehicle rolls over, and deploys in a curtain shape downward with respect to the vehicle; an auxiliary deployment portion that inflates by receiving a supply of gas via a gas passage that is communicated with a portion of the auxiliary deployment portion in a vertical direction of the vehicle, and that deploys such that a lower end side, when viewed from a side, overlaps with a side door forward of the main deployment portion; and a connecting portion that connects a portion on an upper end side of the auxiliary deployment portion to a front pillar. | 05-24-2012 |
20120248751 | CURTAIN AIR BAG SYSTEM - A curtain air bag system includes a curtain air bag that is housed folded up in an upper edge portion of a door opening, and that includes a first deployment portion that deploys when a vehicle is collided with in a side collision as well as when the vehicle rolls over, and a second deployment portion that deploys at least when the vehicle rolls over, by receiving a supply of gas. The first deployment portion deploys in a cylindrical shape extending in a vehicle longitudinal direction, above a belt line such that a rear end side of the first deployment portion overlaps with a center pillar when viewed from a side of the vehicle, and the second deployment portion deploys such that a lower end extends below the belt line, in a position not overlapping with the first deployment portion when viewed from the side. | 10-04-2012 |
20120256401 | CURTAIN AIRBAG SYSTEM - A curtain air bag of a curtain airbag system includes a main chamber stored in a folded condition in a roof side portion that extends rearward from a front pillar, and a front auxiliary chamber formed integrally with the main chamber and stored in a folded condition in the roof side portion together with the main chamber. The main chamber is inflated with gas supplied thereto in the event of a side impact of a vehicle and rollover of the vehicle, to be deployed like a curtain downwardly of the vehicle. The front auxiliary chamber is inflated with gas supplied thereto at least in the event of rollover of the vehicle, to be deployed in front of the main chamber such that an upper portion of the front auxiliary chamber as seen in a side view overlaps the front pillar, and a lower portion thereof overlaps a front side door. | 10-11-2012 |
20120256402 | CURTAIN AIRBAG SYSTEM - A curtain airbag of a curtain airbag system includes a main chamber stored in a folded condition in a roof side portion that extends rearward from a front pillar, and a front auxiliary chamber formed integrally with the main chamber and stored in a folded condition in a roof header portion. The main chamber is inflated with gas supplied thereto in the event of a side impact of a vehicle and rollover of the vehicle, to be deployed like a curtain downwardly of the vehicle. The front auxiliary chamber is inflated with gas supplied thereto at least in the event of rollover of the vehicle, to be deployed in front of the main chamber such that a lower portion of the front auxiliary chamber as seen in a side view of the vehicle overlaps a front side door. | 10-11-2012 |