Invention Grant
- Patent Title: Press device
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Application No.: US16617223Application Date: 2018-08-07
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Publication No.: US11440075B2Publication Date: 2022-09-13
- Inventor: Yusuke Masato
- Applicant: KOMATSU INDUSTRIES CORPORATION
- Applicant Address: JP Kanazawa
- Assignee: KOMATSU INDUSTRIES CORPORATION
- Current Assignee: KOMATSU INDUSTRIES CORPORATION
- Current Assignee Address: JP Kanazawa
- Agency: Global IP Counselors, LLP
- Priority: JPJP2017-178806 20170919
- International Application: PCT/JP2018/029611 WO 20180807
- International Announcement: WO2019/058797 WO 20190328
- Main IPC: H01H47/00
- IPC: H01H47/00 ; B21D28/00 ; B30B15/14 ; H02J7/00 ; H02P29/00 ; H02J7/34

Abstract:
A press device includes a press device main body and a main breaker to supply or stop power from an external power supply to the press device main body. The press device main body includes a slide, a bolster disposed below the slide, a servomotor configured to drive the slide, a power storage unit able to supply stored power to the servomotor, a discharge unit configured to discharge a charge stored in the power storage unit, and a first contactor. An upper die can be mounted on the slide. A lower die can be disposed on the bolster. The first contactor interrupts an electrical connection between the power storage unit and the discharge unit in an energized state and electrically connects the power storage unit and the discharge unit in a non-energized state. The first contactor is supplied with power for energization from the external power source without passing through the main breaker.
Public/Granted literature
- US20200086372A1 PRESS DEVICE Public/Granted day:2020-03-19
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