Patent application number | Description | Published |
20080254930 | HYBRID DIFFERENTIAL GEAR DEVICE, DIFFERENTIAL CASE THEREFOR AND ASSEMBLING METHOD OF DIFFERENTIAL CASE - It is an object of the present invention to provide a hybrid differential gear device achieving the small and light devices as a whole and easy assembling of a differential case. | 10-16-2008 |
20090186739 | DIFFERENTIAL GEAR MECHANISM FOR VEHICLE - A differential gear mechanism includes a housing, first and second sun gears each including an external gear portion, and first and second planetary gears. The first and second sun gears include axial end surfaces pressed against contact surfaces provided at the housing by the first and second sun gears by means of thrust forces generated at engagement surfaces between the external gear portions and the planetary gears. Each of the sun gears includes a first portion having the external gear portion, a second portion, and a thrust force generating mechanism for generating thrust forces at the first portion and the second portion. A direction of the thrust force generated at the first portion by the thrust force generating mechanism is specified to be equal to a direction of the thrust force generated at the first portion by means of the engagement between the external gear portion and the planetary gear. | 07-23-2009 |
20090215576 | GEAR AND DIFFERENTIAL APPARATUS PROVIDED THEREWITH FOR VEHICLE - It is an object of the present invention to provide a differential apparatus for a vehicle with a gear obtaining a sufficient mechanical strength against any torsion torque and preventing from being large and heavy as a whole and preventing from making a high manufacturing cost. | 08-27-2009 |
20090291798 | PLANETARY CARRIER, PLANETARY GEAR MECHANISM, AND VEHICLE DIFFERENTIAL PROVIDED WITH THE SAME - A planetary carrier, formed of a cylindrical body, that receives a drive torque from a drive power source and differentially distributes the drive torque to a pair of output shafts, the planetary carrier including a gear holding portion that rotatably holds a planetary gear having two large and small gear portions, of which pitch circle diameters differ from each other. The gear holding portion has a first supporting surface that slidably supports tooth tip surfaces of the gear portion, of which the pitch circle diameter is larger, on a portion except on the radially inner side with respect to the carrier, and a second supporting surface that slidably supports tooth tip surfaces of the gear portion, of which the pitch circle diameter is smaller, on a portion except on the radially outer side with respect to the carrier. | 11-26-2009 |
20090305834 | DIFFERENTIAL APPARATUS FOR VEHICLE - It is an object of the present invention to provide a differential apparatus for a vehicle obtaining efficiently differential restricting force necessary and enough for a stable running performance and reducing the total cost and the total length of the apparatus. | 12-10-2009 |
20100240487 | VEHICLE DIFFERENTIAL UNIT - In a vehicle differential unit according to an embodiment of the invention, a planetary carrier that is a rotatable member that rotatably supports planetary gears is formed of cylindrical members that are unable to rotate relative to each other on the rotational axis of a pair of output shafts. The vehicle differential unit has a thrust force generation portion that receives a driving force from a drive source of a vehicle and generates a thrust force along the direction of the rotational axis of the pair of output shafts, and a relative movement limiting portion that limits a relative movement between the cylindrical members along the axial direction due to the thrust force when the vehicle is in the drive mode. | 09-23-2010 |