Power transmission mechanism
AssigneeNtn Corporation
InventorsHiroaki Makino, Kazuhiro Muramatsu, Kazuhiko Yoshida, Akira Wakita, Katsuyuki Ikei, Hisaaki Kura
Life of this patent
Estimating the term…
Abstract
A shaft member 1 and an outer peripheral member 2 disposed on the outer periphery of the shaft member 1 are joined together by splines 3 through which the teeth 31 of the shaft member 1 and the teeth 32 of the outer peripheral member 2 are fitted together. At one axial end of each spline 3, a trough 31 in the tooth 31 of the shaft member 1 is diametrically increased to provide a diametrically increased region S1. In this diametrically increased region S1, there is defined a fit region F for the tooth 31 of the shaft member 1 and the tooth 32 of the outer peripheral member 2.
Claims15
A constant velocity joint comprising:
- a shaft member;
- and
- an inner ring disposed on an outer periphery of the shaft member,
- wherein the outer periphery of the shaft member is provided with,
- teeth adapted to fit in teeth of the inner ring, and
- a plain portion,
- wherein said shaft member and the inner ring are thereby connected for mutual torque transmission,
- wherein troughs of the teeth of the shaft member are increased in diameter at least at one axial end of the troughs, defining diametrically increased regions, and a terminal edge of a ridge of the shaft member is diametrically decreased and connected to the plain portion, and
- wherein fit regions for fitting in the teeth of the inner ring are formed in said diametrically increased regions of the troughs of the teeth of the shaft member, said fit regions being located radially inwardly of an outer periphery level of the plain portion.
A power transmission mechanism comprising:
- a shaft member;
- and
- an outer peripheral member disposed on an outer periphery of said shaft member connected together for mutual torque transmission by a fit between teeth of the shaft member and teeth of the outer peripheral member, the outer peripheral member having a plain portion,
- wherein troughs in the teeth of the shaft member are diametrically increased at least at one axial end,
- wherein a terminal edge of a ridge of the shaft member diametrically decreases and is connected to the plain portion, and
- wherein the diametrically increased regions of said troughs include fit regions for the teeth of the shaft member and the teeth of the outer peripheral member, said fit regions being located radially inward of an outer periphery level of the plain portion.
Dependencies are inferred from the claim text.