Flex spline for meshing type gear device, and meshing type gear device having flex spline
AssigneeTeijin Seiki Co., Ltd.
InventorsHongyou Wang, Toshio Yoshikawa
Life of this patent
Estimating the term…
Abstract
A flex spline 1 used for a meshing type gear device includes an attachment portion 1a, a thin-thickness tubular portion 1b continuing to the attachment portion and capable of being elastically deformed, and external teeth 1c formed at the tip end portion of the tubular portion away from the attachment portion. The thin-thickness tubular portion 1b is formed in a conical shape with an opening angle θ which is tapered in a direction from the attachment portion 1a toward the external teeth 1c before inserting a wave generator 3.
Claims4
A flex spline used for a meshing type gear device, comprising:
- an attachment portion;
- a thin-thickness tubular portion continuing to the attachment portion and capable of being elastically deformed;
- and
- external teeth formed at a tip end portion of the tubular portion away from the attachment portion,
- wherein the thin-thickness tubular portion is formed at least partly in a conical shape which is tapered in a direction from the attachment portion toward the external teeth.
A meshing type gear device comprising:
- a flex spline having an attachment portion, a thin-thickness tubular portion continuing to the attachment portion and capable of being elastically deformed, and external teeth formed at a tip end portion of the tubular portion away from the attachment portion;
- a circular spline having inner teeth to be meshed with the external teeth of the flex spline;
- and
- a wave generator elastically deforming the flex spline,
- wherein the thin-thickness tubular portion is formed at least partly in a conical shape which is tapered in a direction from the attachment portion toward the external teeth, and
- wherein the wave generator has plural lines of bearings abutting against an inner periphery of the flex spline.
A meshing type gear device comprising:
- a flex spline having an attachment portion, a thin-thickness tubular portion continuing to the attachment portion and capable of being elastically deformed, and external teeth formed at a tip end portion of the tubular portion away from the attachment portion;
- a circular spline having inner teeth to be meshed with the external teeth of the flex spline;
- and
- a wave generator elastically deforming the flex spline,
- wherein the thin-thickness tubular portion is formed at least partly in a conical shape which is tapered in a direction from the attachment portion toward the external teeth, and
- wherein the wave generator has a roller bearing abutting against an inner periphery of the flex spline.
Dependencies are inferred from the claim text.