The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 24, 2025

Filed:

Apr. 26, 2021
Applicant:

Nissei Asb Machine Co., Ltd., Nagano, JP;

Inventor:

Yasuhiro Hidaka, Nagano, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/82 (2006.01); B29C 45/67 (2006.01); B29C 49/42 (2006.01); B29C 49/56 (2006.01);
U.S. Cl.
CPC ...
B29C 45/82 (2013.01); B29C 45/67 (2013.01); B29C 49/42 (2013.01); B29C 49/5605 (2022.05); B29C 49/561 (2022.05); B29C 2945/76598 (2013.01); B29C 2945/76732 (2013.01); B29C 2945/76866 (2013.01); B29C 2945/76872 (2013.01);
Abstract

A control method for a mold opening/closing device including a hydraulic cylinder that opens and closes a mold, a hydraulic drive device that drives the hydraulic cylinder by supplying a hydraulic oil, and a controller that controls the hydraulic drive device, wherein the controller changes speed change in a deceleration region, in which movement of the hydraulic cylinder is decelerated, between a first half portion and a second half portion of the deceleration region, and causes speed change rate per unit time in the second half portion to be smaller than in the first half portion.


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