Patent · US Active

Electric actuator

US8495924B2 · kind B2 · utility

16Cited by

14References

27Claims

0Family size

Assignee

SMC CORPORATION · JP

Inventors

Yoshihiro Fukano · Ibaraki, JP
Toru Sugiyama · Abiko, JP
Masaki Miyahara · Tsukubamirai, JP

Key dates

Filing date	Mar 31, 2009
Grant date	Jul 30, 2013
Priority date	—
Expiry date	Jul 2, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/18744
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

In an electric actuator, a connector is coupled to one end of a screw shaft that makes up a displacement mechanism, the screw shaft being rotatably supported by first and second bearings. Further, on the other end of the screw shaft, a support ring is disposed through a holder, wherein the support ring is slidable along an inner circumferential surface of a piston rod. On the outer circumferential surface of a piston, a rotation-stopping member is provided, which includes projections thereon that project in a radial direction from the outer circumferential surface, the projections being inserted into grooves of said body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.