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Patent Searching and Data


Title:
EXCAVATOR INCLUDING UPPER SWING BODY HAVING FREE SWING FUNCTION
Document Type and Number:
WIPO Patent Application WO/2019/146817
Kind Code:
A1
Abstract:
A system for enabling an upper swing body of construction equipment to swing freely. A working device is attached to the upper swing body to lift and move an object. A swing motor is connected to a power unit to swing the upper swing body. A controller is electrically connected to the working device and the swing motor to detect forces applied to the working device, and based on the detected forces, generating a control signal to control the swing motor so that the upper swing body swings freely. The system enables the upper swing body to swing freely to reduce energy consumption while ensuring safety when the upper swing body lifts a load.

Inventors:
SUK, Okjin (3-306, Volvo Employee Apt. 9, Sinchon-ro 134beon-gil, Seongsan-gu,Changwon-si, Gyeongsangnam-do, 51563, KR)
LEE, Chunhan (608-402, 90 Yulha 1-ro,Gimhae-si, Gyeongsangnam-do, 51019, KR)
Application Number:
KR2018/001196
Publication Date:
August 01, 2019
Filing Date:
January 26, 2018
Export Citation:
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Assignee:
VOLVO CONSTRUCTION EQUIPMENT AB (S Eskilstuna, SE-631 85, SE)
SUK, Okjin (3-306, Volvo Employee Apt. 9, Sinchon-ro 134beon-gil, Seongsan-gu,Changwon-si, Gyeongsangnam-do, 51563, KR)
LEE, Chunhan (608-402, 90 Yulha 1-ro,Gimhae-si, Gyeongsangnam-do, 51019, KR)
International Classes:
E02F9/12; E02F9/20; E02F9/22
Foreign References:
JPH01156300A1989-06-19
JP2015214808A2015-12-03
US20100139255A12010-06-10
US20130245897A12013-09-19
JPS61257542A1986-11-15
Attorney, Agent or Firm:
KIM, Seon-Min (Akros Patent & Trademark Attorneys, 8F. DongGu Bldg.,15, Teheran-ro 86-gil,,Gangnam-gu, Seoul, 06179, KR)
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