Claims
- 1. An inner roller in the shape of a cylinder, for use in an internal-meshing planetary gear construction having a first shaft, an eccentric element which is rotated by rotation of the first shaft, an external gear which is assembled so as to be rotatable eccentrically to the first shaft through the eccentric element, an internal gear with which the external gear is in internal mesh, and a second shaft which is connected to the external gear through means for transmitting only a rotational component of the external gear on an axis thereof, said inner roller being used with an inner pin in the shape of a column in order to constitute said means for transmitting only the rotational component of the external gear on the axis thereof; characterized in that:
- said inner roller in said internal-meshing planetary gear construction comprises the fact that a cross section of an inner-peripheral wall of the cylinder is formed in a shape which is brought closer to a regular polygon of n sides from a true circle, n being an integer of at least 3.
- 2. An inner roller in the shape of a cylinder, for use in an internal-meshing planetary gear construction having a first shaft, an eccentric element which is rotated by rotation of the first shaft, an external gear which is assembled so as to be rotatable eccentrically to the first shaft through the eccentric element, an internal gear with which the external gear is in internal mesh, and a second shaft which is connected to the external gear through means for transmitting only a rotational component of the external gear on an axis thereof, said inner roller being used with an inner pin in the shape of a column in order to constitute said means for transmitting only the rotational component of the external gear on the axis thereof; characterized in that:
- said inner roller in said internal-meshing planetary gear construction comprises the fact that a cross section of an inner-peripheral wall of the cylinder is formed in a shape which is brought closer to a rhombus from a true circle.
- 3. An outer roller in the shape of a cylinder, for use in an internal-meshing planetary gear construction having a first shaft, an eccentric element which is rotated by rotation of the first shaft, an external gear which is assembled so as to be rotatable eccentrically to the first shaft through the eccentric element, an internal gear with which the external gear is in internal mesh, and a second shaft which is connected to the external gear through means for transmitting only a rotational component of the external gear on an axis thereof, said outer roller being used in order to constitute an internal tooth of said internal gear; characterized in that:
- said outer roller in said internal-meshing planetary gear construction comprises the fact that a cross section of an inner-peripheral wall of the cylinder is formed in a shape which is brought closer to a regular polygon of n sides from a true circle, n being an integer of at least 3.
- 4. An outer roller in the shape of a cylinder, for use in an internal-meshing planetary gear construction having a first shaft, an eccentric element which is rotated by rotation of the first shaft, an external gear which is assembled so as to be rotatable eccentrically to the first shaft through the eccentric element, an internal gear with which the external gear is in internal mesh, and a second shaft which is connected to the external gear through means for transmitting only a rotational component of the external gear on an axis thereof, said outer roller being used in order to constitute an internal tooth of said internal gear; characterized in that:
- said outer roller in said internal-meshing planetary gear construction comprises the fact that a cross section of an inner-peripheral wall of the cylinder is formed in a shape which is brought closer to a rhombus a true circle.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-148838 |
Jun 1996 |
JPX |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a divisional of U.S. patent application Ser. No. 08/872,386, filed Jun. 10, 1997. The subject matter of Application Ser. No. 08/872,386 is hereby incorporated by reference.
US Referenced Citations (6)
Divisions (1)
|
Number |
Date |
Country |
Parent |
872386 |
Jun 1997 |
|