| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 476061000 | CONDITION RESPONSIVE MEANS TO VARY CONTACT PRESSURE | 6 |
| 20110319223 | VEHICLE DRIVE FORCE DISTRIBUTING APPARATUS - A vehicle drive force distributing apparatus includes an irreversible transmission mechanism, an operating state determining component and a command value resolution switching component. The irreversible transmission mechanism prevents a radially oriented pressing force, generated between first and second rollers based on an inter-roller radial pressing force command value, from decreasing during a period while command value is constant to maintain the radially oriented pressing force at a prescribed value without operating an inter-roller radial pressing force generating source. The operating state determining component determines whether first or second vehicle operating states exists during which a first or a lower second precision level of drive force distribution control, respectively, is to occur between main and subordinate drive wheels. The command value resolution switching component provides the inter-roller radial pressing force command value at a constant value for a longer period during the second vehicle operating state. | 12-29-2011 |
| 20120100955 | TRACTION TRANSMISSION CAPACITY CONTROL DEVICE USED IN DRIVE FORCE DISTRIBUTION DEVICE - A traction transmission capacity control device used in a drive force distribution device includes a second-roller turning means configured to turn the second roller around an eccentric axis deviated from a rotation axis of the second roller, and thereby to control a mutual radially-pressing force between the first roller and the second roller so that a traction transmission capacity is controlled. The traction transmission capacity control device further includes a one-direction turning-stop-position detecting means configured to detect a position at which the turning of the second roller stops after the second-roller turning means starts to turn the second roller in one direction; an another-direction turning-stop-position detecting means configured to detect a position at which the turning of the second roller stops after the second-roller turning means starts to turn the second roller in another direction; and a second-roller turning-motion reference-point setting means configured to set a center position between the position detected by the one-direction turning-stop-position detecting means and the position detected by the another-direction turning-stop-position detecting means, as a turning-motion reference point of the second roller. The traction transmission capacity control device is configured to perform a traction transmission capacity control based on a second-roller turning amount given from the turning-motion reference point of the second roller. | 04-26-2012 |
| 20120277057 | Friction Wheel Drive - The invention is directed to a friction wheel drive with a driving roller capable of being driven in a rotary manner, which is mounted on a bearing unit so as to be rotatable about an axis of rotation. The bearing unit is displaceably guided transversely to the axis of rotation, and a circumferential surface of the driving roller can be brought into driving engagement with a friction surface. The bearing unit is coupled to a first mechanical forced guidance system, by which the driving roller, responding to a driving force acting in a first direction, can be automatically pressed against the friction surface with a contact pressing force that increases as the driving force increases. The bearing unit is also coupled to a second mechanical forced guidance system, by which the driving roller, responding to a driving force acting in an opposite second direction, can be automatically pressed against the friction surface with a contact pressing force that increases as the driving force increases. | 11-01-2012 |
| 20140031167 | DRIVE FORCE DISTRIBUTING APPARATUS - A drive force distributing device includes first and second rollers rotatable jointly with main a drive wheel system and a subordinate drive wheel system, respectively. Control of the drive force distribution between the main drive wheels and the subordinate drive wheels is performed by adjusting an inter-roller pressing force. A structural body suppresses turning of one of the first and second rollers at a predetermined position. A reference position setting mechanism turns either one of the first and second rollers to turn in one direction, detects a position at which the turn is suppressed by the structural body, and sets a reference position based on the detected position. A turning amount of one of the first and second rollers is detected with respect to the reference position set by the reference position setting mechanism and the control of drive force distributing is performed based on the detected turning amount. | 01-30-2014 |
| 20140171256 | BEVEL FRICTION RING GEARING AND METHOD FOR MOUNTING OR PRODUCING A BEVEL FRICTION RING GEARING - The aim of the invention is to further develop a bevel friction ring gearing. The invention thus relates to a bevel friction ring gearing in which the friction ring can be displaced by means of an adjusting device that comprises a guide on which an adjusting bridge for the friction ring is arranged in a free axially displaceable manner. The adjusting device comprises a worm-gear drive that engages with the guide. | 06-19-2014 |
| 20150018169 | CONTACT AND SEPARATING DEVICE AND IMAGE FORMING APPARATUS - A contact and separating device includes a roller member disposed to be capable of being contacted to an abutted member, a bearing member supporting the roller member and configured to be movable together with the roller member in a contact and separation direction with respect to the abutted member, and a biasing member biasing the roller member toward the abutted member through the bearing member. The contact and separating device further includes a separation member holding the roller member and the abutted member in a separation state where the roller member is separated from the abutted member against a biasing force of the biasing member by engaging with the bearing member in the separation state, and a release member releasing engagement between the bearing member and the separation member by moving the separation member. | 01-15-2015 |
