| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 464144000 | Intersecting grooves | 9 |
| 20080254903 | Opposed path joint - An opposed path joint comprising an inner hub, which is provided with first inner grooves and second inner grooves, and comprising an outer hub, which is provided with first outer grooves and second outer grooves that respectively form a pair with the first and second inner grooves. The opposed path joint also comprises an annular cage, which is placed between the inner hub and the outer hub and which has a radial openings whose number corresponds to that of the groove pairs. Balls that engage inside the grooves are guided inside these radial openings. According to the invention, the outer hub of the opposed path joint is a single-piece closed ring, in which the outer grooves are formed without cutting. Alternatively, the outer hub has at least two elements that are located one behind the other on the outer hub axis and, together, center the cage. | 10-16-2008 |
| 20100292016 | PLUNGING CROSS-TRACK CONSTANT VELOCITY JOINT - A cross-track plunging constant velocity joint assembly includes an inner race having an outer diameter, an axial length, inner ball tracks, and a spline engageable with a first torque transfer member. An outer race has an inner diameter, an outer diameter, and outer ball tracks. The outer race is connectable to a second torque transfer member. A cage having multiple windows is disposed between the inner and outer races. A plurality of balls (N) having a ball diameter are held by the cage within the windows and engage pairs of the inner and outer ball tracks. The balls define a joint pitch circle diameter (PCD). The inner race has a plunge depth within the outer race. The ratio of 1.2≦(outer race outer diameter/outer race inner diameter)≦1.7 is satisfied. | 11-18-2010 |
| 20110070954 | Cross Groove Type Constant Velocity Joint - A constant velocity joint for a drive system comprises an outer joint member and an inner joint member each having a plurality of ball grooves in pairs for accommodating balls therein, the ball grooves consisting of a first group of grooves, each groove of which having a linear groove shape with no skew angle or a skewed groove shape with a relatively smaller skew angle, and a second group of grooves, each groove of which having a skewed groove shape with a relatively larger or regular skew angle. In addition to having the differentiated skew angles in the first and second groups of grooves, a taper angle is provided to the pair of grooves of at least one or both of the first and second groups of grooves in order to reduce the potential risk of ball locking in the grooves. In an alternative embodiment, all the grooves of the outer and inner joint members have a skewed groove shape with a skew angle which is less than the regular skew angle of the conventional cross groove joint, and a taper angle is provided to the pairs of grooves of the outer and inner joint members. | 03-24-2011 |
| 20110092299 | Cross Groove Type Constant Velocity Joint - A constant velocity joint for a drive system comprises: an outer joint member having a plurality of inwardly facing outer ball grooves, the outer ball grooves consisting of a first group of grooves, each groove of which having a skewed groove shape with a first skew angle other than zero and alternately arranged in opposite directions relative to an axis of rotation of outer joint member, and a second group of grooves, each groove of which having a skewed groove shape with a second skew angle other than zero and alternately arranged in opposite directions relative to an axis of rotation of outer joint member, the second skew angle less than the first skew angle; and an inner joint member disposed inside the outer joint member and having a plurality of outwardly facing inner ball grooves consisting of a first group of grooves, each groove of which having a skewed groove shape with a first skew angle other than zero and alternately arranged in opposite directions relative to an axis of rotation of inner joint member, and a second group of grooves, each groove of which having a skewed groove shape with a second skew angle other than zero and alternately arranged in opposite directions relative to an axis of rotation of inner joint member, the second skew angle less than the first skew angle, each inner ball groove of the inner joint member being coupled with a corresponding outer ball groove of the outer joint member generally in crossed pair. In addition to the differentiated skew angles, the contact angles of the balls in the first and second group of grooves and other configurations may also be differentiated. | 04-21-2011 |
| 20120010005 | CROSS GROOVE-TYPE CONSTANT-VELOCITY UNIVERSAL JOINT - A cross groove-type constant-velocity universal joint includes an inner ring ( | 01-12-2012 |
| 20120202607 | FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT - Provided is a fixed type constant velocity universal joint capable of suppressing heat generation under high load and during high-speed rotation to improve durability, and suppressing a contact resistance between a cage and inner and outer joint members to improve the constant velocity property. An axial offset amount of a curvature center of each track groove ( | 08-09-2012 |
| 20130085003 | CROSS GROOVE TYPE CONSTANT VELOCITY JOINT WITH COMPOSITE GROOVE PATTERNS - A constant velocity joint for a drive system comprises: an outer joint member having a plurality of inwardly facing outer ball grooves, the outer ball grooves consisting of a first group of grooves and a second group of grooves with composite or non-linear groove pattern; an inner joint member disposed inside the outer joint member and having a plurality of outwardly facing inner ball grooves consisting of a first group of grooves and a second group of grooves with composite or non-linear groove pattern, each inner ball groove of the inner joint member being coupled with a corresponding outer ball groove of the outer joint member generally in crossed pair. | 04-04-2013 |
| 20140038733 | FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT - A fixed type constant velocity universal joint prevents heat generation when a high load is applied or during high-speed rotation to improve durability, and suppresses a contact resistance between a cage and inner and outer races to improve constant velocity performance. Curvature centers of track grooves of outer and inner joint members have an offset of 0 in an axial direction. Track grooves of the outer and inner joint members, which are tilted in opposite directions from each other with respect to an axis line, are alternately formed in a circumferential direction. An outer surface of the inner joint member is a spherical surface to be brought into sliding contact with an inner spherical surface of the cage. An inner surface of the outer joint member is a cylindrical surface. | 02-06-2014 |
| 20160138660 | FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT - Provided is a fixed type constant velocity universal joint ( | 05-19-2016 |
