Gear unit

Patent metadata

Field	Value
Publication number	US-9051995-B2
Application number	US-201214345120-A
Country	US
Kind code	B2
Filing date	Aug 23, 2012
Priority date	Sep 14, 2011
Publication date	Jun 9, 2015
Grant date	Jun 9, 2015

Abstract

A gear unit has a washer which is provided at a position where the washer is able to come into contact with a retainer of roller bearings provided to each of adjacent eccentric parts in a crank shaft, and which regulates a movement of the roller bearing in an axial direction. A housing recess which houses the washer is formed on at least one face of the faces of adjacent oscillating gears facing each other. The housing recess includes an axial direction regulating surface which regulates movement of the washer in the axial direction, and a radial direction regulating surface which regulates movement of the washer in the radial direction.

First claim

The invention claimed is:

1. A gear unit for transmitting torque, at a predetermined reduction gear ratio, between a pair of partner members which are relatively and rotatably coupled to each other,
the gear unit comprising:
an outer cylinder which can be fixed to one of the partner members;
a plurality of internal gear pins which are mounted on an inner peripheral face of the outer cylinder;
a carrier which is housed inside the outer cylinder and can be fixed to the other o…

Assignees

• Miyoshi Hiroyuki
• Nabtesco Corp

Inventors

• Miyoshi Hiroyuki

Classifications

• F16H2001/323

  Mechanical Engineering · mapped topic

• F16H1/32 Primary

  Mechanical Engineering · mapped topic