Abstract: A manufacturing method for a tripod type constant velocity universal joint includes, when forging a raw-shaped material corresponding to each of three journals into a journal shape using a molding surface of a die and in a state where a relief portion is provided on a raw-shaped-material-leading-end-side of the die, molding an outer peripheral surface of the raw-shaped material into a projected round shape. The molding occurring with a tapered surface formed on the molding surface with which the outer peripheral surface of the raw-shaped material is held in contact and a recessed round surface formed between the molding surface and the tapered surface.

Abstract: A tripod-type constant-velocity universal joint has a journal raw profile with reduced weight and a reduced number of manufacturing steps. A leading end corner portion of the journal raw profile is held with use of a die and forged. By the forging, at the part including an elliptically longitudinal side relatively on a leading end portion side of an outer peripheral surface of each of journals, edge portions reducing a lateral sectional area of each of the journals toward a leading end side thereof are formed, and tapered surfaces are formed on the leading end side of the edge portions. Centering on each of the journals is performed by causing two points on an elliptically longitudinal side of the edge portions to abut against a centering jig.

Abstract: Provided is a manufacturing method for a tripod type constant velocity universal joint including: an outer joint member having an inner peripheral surface provided with: three track grooves extending in an axial direction; and roller-guide surfaces extending in the axial direction on both sides of each of the three track grooves; a tripod member including three journals each projected into a radial direction; and a roller unit supported rotatably around each of the three journals of the tripod member and inserted rollably in each of the three track grooves of the outer joint member, the manufacturing method including, when forging a raw-shaped material corresponding to each of the three journals into a journal shape with use of a molding surface of a die, under a state in which a relief portion is provided on a raw-shaped-material-leading-end-side of the die, molding an outer peripheral surface of the raw-shaped material into a projected round shape with use of a tapered surface formed on the molding surface

Abstract: Provided are a tripod-type constant-velocity universal joint which is capable of reducing weight of a journal raw profile to thereby reduce the number of manufacturing steps and in which forging of journals is facilitated, and a method of manufacturing the same. A leading end corner portion (32) of a journal raw profile (54) is held with use of a die (X) and forged. In this case, in a state in which a relief portion (35) is provided on a leading end side of the die (X), a part including an elliptically longitudinal side of the leading end corner portion (32) of the journal raw profile (54) is held with use of the die (X). In the die (X), inner walls of a part at which the leading end corner portion (32) of the journal raw profile (54) is held constitute tapering surfaces (33).

Abstract: This is directed to processing inputs received from an input mechanism to control media playback operations and volume. The input mechanism can include a first button providing inputs by shorting an electrical circuit, and a second button providing inputs by changing the resistance or tone detected or received by a processor. To process inputs, a processor can first detect and process short events from the first button, and subsequently process button events from the second button.