Nabtesco Corporation

Mitsuru Shimamoto

Takahiro Maekawa

Koji Nakamura

Takayuki Okimura

Yuta Nagaya

Masato Uchihara

Kohei Nagahara

Nozomu Kondou

Ryota Hamabe

Speed reducer

A speed reducing mechanism according to the present invention includes: a speed reducing unit for decelerating input rotation; an accelerating unit for accelerating rotation output from the speed reducing unit; and a brake unit for applying a braking force for braking the accelerating unit.

Brake mechanism and speed reducing mechanism

An aspect of the present invention provides a speed reducer including a supporting block, an input gear rotatably supported on the supporting block, an intermediate gear meshing with the input gear, an output gear meshing with the intermediate gear, and a gear position changing mechanism configured to change a position of the intermediate gear relative to the input and output gears.

Gear mechanism, speed reducer and drive device using speed reducer

A work positioner includes a first work retaining portion for retaining a first workpiece, a first drive portion for outputting a first rotational force about a first rotation axis and imparting a first angular movement about the first rotation axis to the first work retaining portion, a bearing portion supporting the first work retaining portion in cooperation with the first drive portion, a base arranged away from the first rotation axis, a first support column extending along a first support axis extending from the base toward the first rotation axis and supporting the first drive portion, and a second support column extending along a second support axis extending between the base and the first rotation axis so as to be parallel to the first support axis and supporting the bearing portion. The first support column includes a plurality of first support column pieces arranged along the first support axis.

Work positioner

A motor () is used for driving a member in a container regulated to a pressure different from the atmospheric pressure. The motor () includes a rotor (), a stator (), and a case (). The rotor () is located in an environment having a pressure different from the atmospheric pressure. The stator () is located opposedly to the rotor (). The case () contains the rotor () and the stator (). In the motor (), a space in the case () opposed to the rotor () is filled with a resin.

Motor used in an environment having a pressure different from atmospheric pressure

A wafer handling robot includes a body and an arm having a plurality of links. A wafer holder is provided on one end of the arm. A base of the arm serves as a drive link and is rotatably connected to the body. The arm is configured such that, when the drive link is rotated by a motor, the arm end is constrained to move along a straight or curved trajectory. A starting point and an end point of the trajectory are located equal distantly from a center of rotation of the drive link. Further, the direction of the arm end at the starting point is a mirror image of the direction of the arm end at the end point with respect to a straight reference line passing through the center of rotation and a middle point between the starting and the end points.

Wafer Handling Robot

A robot arm for transporting semiconductor wafers includes a hand, a lower arm link, and an upper arm link. The hand is connected to the lower arm link via a first joint, and the upper arm link is connected to the lower arm link via a second joint. The lower arm link is capable of being separated at a location between the first joint and the second joint.

Robot arm having lower arm link separable into two parts

In a robot arm is provided with a closed link mechanism between a base and a hand, and a temperature of a first link member from among a plurality of link members constituting the closed link mechanism is to reach a first temperature T, and a temperature of a second link member is to reach a second temperature T, the first link member and the second link member formed from differing materials. An elongation ratio of the first link member, in which a length of the first link member at the first temperature Tis divided by length of the first link member at a pre-operation temperature Tis approximately equal to an elongation ratio of the second link member, in which a length of the second link member at the second temperature Tis divided by a length of the second link member at the pre-operation temperature T

Growing community of inventors

Tsu, Japan

Mitsuru Shimamoto