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FRICTION TRANSMISSION OR ELEMENT

Subclass of:

476 - Friction gear transmission systems or components

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
476067000FRICTION TRANSMISSION OR ELEMENT17
20080207390FRICTION DRIVE ACTUATOR - A friction drive actuator, comprising: a vibration member which is configured to be driven to vibrate by expansion and contraction of a piezoelectric displacement portion which is included in the vibration member and driven by a driving signal; a sliding member which is in contact with the vibration member and is driven by the vibration member in a first direction with respect to the vibration member; a pressing member which causes the vibration member and the sliding member to come into a pressure contact therebetween; and a control member which is provided on each of the vibration member and the sliding member at a contact portion therebetween for controlling a relative movement of the sliding member with respect to the vibration member in a direction perpendicular to the first direction when the vibration member and the sliding member are pressedly contacted with each other by the pressing member.08-28-2008
20090023546Friction Wheel Actuator - Actuator adapted to cooperate with a drive of an endothermic engine including power source and a releasable accessory, the actuator including a box-shaped casing, a motorized eccentric group housed inside the casing and including a reduction gearing, an arm cooperating with the eccentric group and supporting a friction wheel adapted to cooperate with the accessory and with the power source, the arm being mobile between an engaged position and a disengaged position of the accessory.01-22-2009
20100261573BEVEL 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.10-14-2010
20100292045FRICTION-ROLLER TYPE TRANSMISSION MECHANISM - Under control of rotation of a crankshaft 11-18-2010
20120004072FRICTION GEARING - A friction gearing has housing and a unit housed in the housing, the unit including a first roller, a second roller and rotatable support plates. The first roller and the second roller are in frictional engagement with each other under a radial pressing force. The radial pressing force is variable in response to a change in the radial distance between the first and the second roller. The rotatable support plates support the first and the second rollers and receive a resisting force that is generated when the first and the second rollers come in contact under the pressing force. The unit is received in the housing with the axis of rotation of the first roller radially fixed while the first roller is rotatably supported by the housing.01-05-2012
20120149529ROLLER FRICTIONAL TRANSMISSION UNIT - A roller frictional transmission unit includes: a first roller; a second roller; an input shaft connected with a driving system of main driving wheels, and connected with one of the first roller and the second roller; an output shaft connected with a driving system of auxiliary driving wheels, and connected with the other of the first roller and the second roller; a thrust bearing arranged to position an input shaft side rotation section including the one of the first roller and the second roller and the input shaft, or an output shaft side rotation section including the other of the first roller and the second roller and the output shaft, with respect to a unit housing in an axial direction; and a low rigidity structure disposed in a thrust transmission path to the thrust bearing, and arranged to buffer a thrust.06-14-2012
20130137546ROTATION MECHANISM - A rotation mechanism includes a base, a loading member rotatably placed on the base, and a driving member rotatably placed on the base. The loading member includes a side surface. The driving member includes a main body. The main body of the driving member includes a side surface. The side surface of the loading member maintains contact with the side surface of the main body. When the driving member is rotated, the loading member is rotatably driven by the friction between the side surface of the loading member and the side surface of the main body. The driving member further includes a positioning portion placed on the main body, and after rotation through a predetermined number of degrees of the main body, the positioning portion positions the driving member accordingly.05-30-2013
20130324356Anhanger-Rangierantrieb mit koaxialer Anordnung von Antriebskomponenten - A maneuvering drive for a trailer includes a fastening means for fastening to the trailer, a carrier movable relative to the fastening means, a drive motor held by the carrier, a drive roller rotatable drivable by the drive motor and a braking means for braking a rotary movement of the drive roller. The drive motor and the braking means are arranged coaxially to each other. In the flux of force between the drive motor and the drive roller a transmission device is provided, which has no self-locking feature.12-05-2013
20140004993Frictional Transmission, in particular for a Hydraulic Unit in a Vehicle Brake System01-02-2014
476068000 Friction gears on nonlinear angularly related axes 2
20110070998DRIVE UNIT - A drive unit includes a main wheel having an annular member, and a plurality of driven rollers that are rotatably attached to the annular member, a plurality of first drive rollers and a plurality of second drive rollers, which are provided with the annular member between them and arranged such that they make contact with the outer peripheral faces of the driven rollers, a first holder and a second holder, which are arranged with the annular shaft between them and respectively hold the plurality of first drive rollers and the plurality of second drive rollers while allowing them to rotate, and a first drive unit and a second drive unit that rotationally drive the first holder and the second holder respectively; grooves are formed in the outer peripheral faces of the driven rollers at an angle to the circumferential direction thereof.03-24-2011
20140018205DRIVE FORCE DISTRIBUTING APPARATUS - A drive force distributing apparatus includes a first roller that is rotatable with a main drive wheel system and a second roller that is rotatable with a subordinate drive wheel system. Control of the drive force distribution between the main drive wheel system and the subordinate drive wheel system is carried out by turning the second roller by the rotation of a crankshaft to thereby adjust a radial pressing force of the second roller against the first roller. A bearing support includes an exterior wall disposed in a housing, a first through bore formed in the exterior wall for receiving a shaft portion of the first roller, a first interior side wall extending radially outward from the first through bore, a second through bore formed in the exterior wall for receiving a crankshaft, and a second interior side wall extending radially outward from the second through bore. An angle formed between a rotational axis of the first roller and a rotational axis of the second roller is a first angle, an angle formed between the first interior side wall and the exterior wall is a predetermined angle larger than “0”, and an angle formed between the second interior side wall and the exterior wall is an angle obtained by subtracting the predetermined angle from the first angle.01-16-2014
476070000 Roller bearing between gear and support 2
20090105036DROP BOX FOR POWERTRAIN - An output transfer group, or drop box, can include a housing and a gear transfer train, rotatably supported within the housing, that includes an input gear adapted for enmeshing engagement with a transmission output shaft and a gear transfer output shaft that is rotatable upon rotation of the input gear. A coupler can be provided that includes a hub rotatively coupled with the gear transfer output shaft, a bearing carrier, a coupler output shaft rotatively coupled to the bearing carrier, and a coupling mechanism rotatively coupled to the bearing carrier. The coupling mechanism can be movable between an engaged position, wherein the coupling mechanism is rotatively coupled to the hub, and a disengaged position, wherein the coupling mechanism is disengaged from the hub. A solenoid can be arranged with the coupling mechanism to selectively move the coupling mechanism from the disengaged position to the engaged position.04-23-2009
20120065021VARIABLE SPEED DIRECT DRIVE TRANSMISSION - A direct drive transmission system suitable for use with scooters, go-carts or motorcycles is disclosed. The transmission system comprises a drive shaft coupled to a motor shaft and a friction element which is guided longitudinally on said drive shaft, rotating with the rotation of the drive shaft. The system further comprises a roll bearing fixedly attached around at least part of the periphery of its inner ring to an end of the friction element and a stopper which is fixedly attached to the outer ring of said roll bearing. The stopper is adapted to affix a wire, which when pulled, moves longitudinally said friction element towards the inner end of the drive shaft so as to allow engagement of said friction element onto a traction surface of the drive wheel.03-15-2012
476072000 Particular friction surface 4
20090203494DRIVING FORCE TRANSMITTING DEVICE, IMAGE FORMING APPARATUS, AND DRIVING FORCE TRANSMITTING METHOD - A technique that makes it possible to switch high-torque power transmission with a compact and simple configuration is provided. A driving force transmitting device that transmits driving force received by one of a first rotating body and a second rotating body to the other includes: the first rotating body; a first engaging section that is provided in the first rotating body; the second rotating body that rotates around a rotating shaft the same as that of the first rotating body; elastically deforming sections that are arranged in the second rotating body; and a second engaging section that is provided in the second rotating body and elastically supported by the elastically deforming sections to engage with the first engaging section and is disengaged from the first engaging section by centrifugal force involved in the rotation of the second rotating body.08-13-2009
20130157803ROLLER-TYPE FRICTION TRANSMISSION UNIT - In a roller-type friction transmission unit, outer peripheral surfaces of first and second rollers are pressed in a radial direction into pressing contact with one another, to allow frictional power transmission between the first and second rollers. The first roller is connected to a driveline to main driving wheels of a four wheel drive vehicle. The second roller is connected to a driveline to auxiliary driving wheels of the four wheel drive vehicle. The transmitted torque capacity between the first roller and the second roller is controlled by changing a distance between rotation axes of the first and second rollers. The outer peripheral surfaces of the first and second rollers are shaped to allow the outer peripheral surfaces of the first and second rollers to be in contact with one another at a plurality of spots arranged in an axial direction.06-20-2013
476073000 Metallic 2
20120264564POWDERED METAL VARIATOR COMPONENTS - The use of powder metal components in a variator is disclosed. Traction fluid of various sorts may be used in the variators, not just high performance synthetics or application specific lubricants.10-18-2012
20160201630ROLLER FOR A FUEL PUMP ACTUATOR07-14-2016

Patent applications in class FRICTION TRANSMISSION OR ELEMENT

Patent applications in all subclasses FRICTION TRANSMISSION OR ELEMENT

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