Title:
ACTUATOR
Document Type and Number:
Japanese Patent JP2023162542
Kind Code:
A
Abstract:
To provide a nut-rotation type actuator that suppresses the swaying motion of the screw shaft while achieving size reduction.SOLUTION: An actuator 1 includes a ball nut 2C provided rotatably around the central axis CL by means of a motor 2B, a ball screw shaft 2D that extends in a Z direction (axial direction), is inserted into and engaged with the ball nut 2C, and can move in the Z direction with the rotation of the ball nut 2C, a housing 2A that supports the ball nut 2C, a first linear guide 3C and a second linear guide 3D that are arranged in the direction where the ball screw shaft 2D extends and are fixed to the housing 2A side, and a guide rail 3B that is connected to a portion where the ball screw shaft 2D projects from the ball nut 2C and is guided for movement in the Z direction by means of the first linear guide 3C and the second linear guide 3D.SELECTED DRAWING: Figure 2
Inventors:
SHIRAHAMA KOHEI
SUGITA SUMIO
INAGAKI SATOSHI
SUGITA SUMIO
INAGAKI SATOSHI
Application Number:
JP2022072916A
Publication Date:
November 09, 2023
Filing Date:
April 27, 2022
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H25/20; F16H25/22
Attorney, Agent or Firm:
Sakai International Patent Office
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