1. A simple planetary reduction gear comprising:
a sun gear;
a planetary gear which is supported by a carrier; and
an internal gear with which the planetary gear internally meshes,
wherein the simple planetary reduction gear is used in a vertically installed state,
wherein the sun gear includes a shaft portion which protrudes to a load side coaxially with a shaft center of the sun gear, and
wherein the shaft portion is supported by a bearing which is disposed between an outer circumference of the shaft portion and an inner circumference of the carrier.
2. The simple planetary reduction gear according to claim 1,
wherein the sun gear, the planetary gear, and the internal gear are helical gears.
3. The simple planetary reduction gear according to claim 1, further comprising:
an output member which is separated from the carrier and is connected to the carrier,
wherein position regulation in an axial direction of an outer ring of the bearing is performed by the output member.
4. The simple planetary reduction gear according to claim 3,
wherein the output member includes a protrusion which protrudes in the axial direction, the position regulation in the axial direction of the outer ring of the bearing is performed by the protrusion, and the outer circumference of the protrusion is a spigot joint portion between the outer circumference of the protrusion and the inner circumference of the carrier.
5. The simple planetary reduction gear according to claim 1,
wherein a gear portion of the sun gear and the shaft portion are hollow, and a shaft of a drive source side can be inserted into the inside position of the bearing over the inside of the gear portion.
6. The simple planetary reduction gear according to claim 5,
wherein a spline which connects the inside of the gear portion of the sun gear and the shaft of the drive source side to each other is provided on the inside of the gear portion of the sun gear, and the spline is not formed inside the shaft portion.
7. The simple planetary reduction gear according to claim 1,
wherein an oil level of the simple planetary reduction gear is lower than an upper end position of the sun gear.
8. The simple planetary reduction gear according to claim 3,
wherein the output member includes a large diameter portion and a small diameter portion, and
wherein the splines having the same module are formed on the large diameter portion and the small diameter portion.
9. The simple planetary reduction gear according to claim 8, further comprising:
a friction plate of a brake which is disposed in the spline of the large diameter portion,
wherein an outer diameter of the large diameter portion is smaller than the outermost diameter of the carrier.
10. The simple planetary reduction gear according to claim 1, further comprising:
a cover which covers a upper portion of a simple planetary reduction mechanism including the sun gear, the planetary gear, and the internal gear,
wherein the cover includes a continuous inclined surface which is inclined downward from the outside toward the inside in a radial direction of the sun gear.
11. The simple planetary reduction gear according to claim 10,
wherein a terminal position in the inside in the radial direction of the inclined surface is positioned inside the position of the outermost diameter of the sun gear.
12. The simple planetary reduction gear according to claim 10,
wherein an inner end in the radial direction of a member of a portion configuring the inclined surface is positioned in the inside in the radial direction from a oil seal disposed in the cover.
13. The simple planetary reduction gear according to claim 10,
wherein the inclined surface is also provided at the position at which the cover and the internal gear overlap each other when viewed in the axial direction.
14. The simple planetary reduction gear according to claim 10,
wherein a lubricant passage is provided in a planetary pin which rotatably supports the planetary gear, and a convex portion or a concave portion are intermittently provided in a circumferential direction at a position above the lubricant passage of the cover.
15. The simple planetary reduction gear according to claim 1, further comprising:
a motor,
wherein a simple planetary reduction mechanism including the sun gear, the planetary gear, and the internal gear is disposed at the next stage of the motor,
wherein the internal gear is integrated with a casing of the simple planetary reduction mechanism,
wherein an air vent port provided in the casing and an air vent passage which causes the air vent port and a upper space of the simple planetary reduction mechanism to communicate with each other are provided,
wherein the casing is divided into at least a first member and a second member, and
wherein the air vent passage is not directly opened to the upper space of the simple planetary reduction mechanism and communicates with the upper space of the simple planetary reduction mechanism via a gap between the first member and the second member.
16. The simple planetary reduction gear according to claim 15,
wherein the upper space of the simple planetary reduction mechanism is closed by a cover body of the motor,
wherein the first member is fitted to the cover body via a spigot fitting surface, and
wherein the upper space of the simple planetary reduction mechanism communicates with a gap between the first member and the second member via a gap of the spigot fitting surface.
17. The simple planetary reduction gear according to claim 15,
wherein a portion between the position positioned further outside in the radial direction than the gap between the first member and the second member of the casing and the cover body of the motor is closed by a seal member.
18. The simple planetary reduction gear according to claim 16,
wherein a portion in which the gap between the first member and the cover body is enlarged is formed on a portion in the circumferential direction of the spigot fitting surface.
19. The simple planetary reduction gear according to claim 15,
wherein a spring hole accommodating a spring of a brake mechanism of the simple planetary reduction mechanism is provided in the casing,
wherein the air vent passage is directly opened to the spring hole, and
wherein the spring hole configures a portion of the air vent passage.
20. The simple planetary reduction gear according to claim 15,
wherein a buffer tank which is disposed outside the casing and is connected to the air vent port is provided.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. Driving board for training golf comprising:
a basal plane (2);
the first inclined plane (3, 4) which is located on top of a basal plane and is adjusted to revolve in relation to the basal plane; and
a second inclined plane (5, 6) which is located on top of the first inclined plane and is adjusted to revolve both in relation to the basal plane and in relation to the first inclined plane;
characterized in that regarding the mentioned three planes (2); (3, 4) and (5, 6) at least one plane has nests (8) into which rolls (7) belonging to the adjacent plane get settled while locking their reciprocal rotation.
2. Driving board according to the claim 1, characterized in that the supporting rolls (7) are adjusted to have the form of the first annulus (A) and the nests (8) are adjusted to have the form of the second annulus (B) in which case the sizes of the annuli are essentially equivalent to each other in such a way that the supporting rolls (7) run through the nests (8) during the rotation.
3. Driving board according to the claim 1, characterized in that the driving base additionally comprises a middle axis (10), in relation to which the rotation of the first and the second inclined plane (3, 4, 5, 6) occurs and additionally the concerned middle axis (10) rests on the basal plane (2), runs through the first inclined plane (3, 4) and becomes connected to the second inclined plane (5, 6); and in which case the concerned middle axis (10) comprises a ball joint (9) which is connected to the second inclined plane and allows the variations of the direction of the inclination of the second inclined plane.
4. Driving board according to the claim 3, characterized in that the upper end of the middle axis (10) forms the mentioned ball joint to which the second inclined plane (5, 6) becomes connected and the lower end of the middle axis (10) forms a structure which rests on the basal plane (2) through a spring 11 so that the spring (11) aims to compensate force generated by the weight of the second inclined plane (5,6) through the middle axis (10).
5. Driving board according to the claim 3, characterized in that the lower end of the middle axis (10) additionally comprises a lower sleeve (12) on which the spring rests and which for its part rests on the basal plane (2) through a lower support (14) and additionally the concerned lower support is attached to the basal plane and is adjusted to centralize the middle axis (10).
6. Driving board according to the claim 1, characterized in that regarding the planes (2);(3, 4) and (5, 6) two planes are adjusted to revolve in relation to each other without rolls (7) and nests (8) when the uppermost plane is sliding on top of the lower plane.