Title:
ELECTRIC/HYDRAULIC DUAL USE CYLINDER DEVICE
Document Type and Number:
Japanese Patent JP2022165706
Kind Code:
A
Abstract:
To provide an electric/hydraulic dual use cylinder device that combines both hydraulic driving for high driving force and electric driving capable of high speed and/or accurate speed control, has a simple structure and high durability, and is easy to maintain.SOLUTION: An electric/hydraulic dual use cylinder device includes a cylinder tube 10 having a cylindrical shape, a first piston 20 that is in the cylinder tube 10 and is electrically driven, a second piston 30 that is hydraulically driven, and a piston rod 40 that transmits force of both the first piston 20 and the second piston 30. The first piston 20 is driven by rotating a ball screw 70, which is screwed into a female screw provided on an axial center, with a motor 80, and has a rotation stop mechanism comprising a convex key 50 that is provided on the outer periphery of the first piston 20 and a long hole 60 that is engaged with the key 50 and is provided to penetrate the cylinder tube 10.SELECTED DRAWING: Figure 1
Inventors:
MASHITA KAZUMASA
ARAI TAKATOMO
ARAI TAKATOMO
Application Number:
JP2021071167A
Publication Date:
November 01, 2022
Filing Date:
April 20, 2021
Export Citation:
Assignee:
HORIUCHI KIKAI KK
International Classes:
F15B15/14; F16H25/22; H02K7/06
Attorney, Agent or Firm:
CLAIA PATENT ATTORNEYS CORPORATION