Title:
ELECTRIC CYLINDER SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/239704
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an electric cylinder system that initiates operation when a brake is definitely released. An electric cylinder system (100) comprises: an electric cylinder (10) that comprises a cylinder part (1) and a servo motor (3) that drives the cylinder part; and a servo motor control device (4) that controls the servo motor, wherein the servo motor (3) comprises a brake, the opening and closing of which is controlled by a brake switch (50), a current sensor (5) is provided between the brake switch (50) and the brake, the servo motor control device (4) comprises a servo cylinder controller that outputs a rotation command on the basis of operation information, and a current sensor amplifier that closes a contact when the value detected by the current sensor (5) is within a set range and opens the contact when the value is not within the set range, and the servo cylinder controller does not output a rotation command to the servo motor (3) when the contact is open.
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Inventors:
FURUKAWA KYOJI (JP)
SHIRAI YOICHIRO (JP)
SHIRAI YOICHIRO (JP)
Application Number:
PCT/JP2019/016011
Publication Date:
December 19, 2019
Filing Date:
April 12, 2019
Export Citation:
Assignee:
SINTOKOGIO LTD (JP)
International Classes:
H02P29/032; H02P1/16; H02P3/04
Foreign References:
| JPH042991U | 1992-01-10 | |||
| JPH0480295U | 1992-07-13 | |||
| JPS62185576A | 1987-08-13 |
Attorney, Agent or Firm:
SONODA & KOBAYASHI INTELLECTUAL PROPERTY LAW (JP)
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