发明名称 |
CONSTRUCTION EQUIPMENT |
摘要 |
Disclosed is a construction equipment including: a boom operating unit including a boom, a boom cylinder, and a boom head and rod return solenoids for controlling the extension of the boom by controlling the ascending and descending of the boom cylinder; an arm operating unit comprising an arm and an arm cylinder so as to move the arm by controlling the extension of the arm cylinder; and a control unit for generating a flow path connection signal in at least a part of the boom head and rod return solenoids upon operation of an arm lever in a boom float mode so as to control the boom cylinder. |
申请公布号 |
US2015368878(A1) |
申请公布日期 |
2015.12.24 |
申请号 |
US201314764220 |
申请日期 |
2013.12.13 |
申请人 |
HYUNDAI HEAVY INDUSTRIES CO., LTD. |
发明人 |
CHOI Kye Hyun;YIM Jong Hyung;LEE Sang Hoon;LEE Ho Youn |
分类号 |
E02F9/22;E02F3/43;E02F3/32 |
主分类号 |
E02F9/22 |
代理机构 |
|
代理人 |
|
主权项 |
1. A construction equipment comprising:
a boom operating unit including a boom, a boom cylinder, a boom head return solenoid and a boom rod return solenoid, the boom head and rod return solenoids configured to control an extension of the boom cylinder to control an ascending and descending of the boom; an arm operating unit configured to control an arm, an arm cylinder and an extension of the arm cylinder to move the arm; and a control unit configured to output a flow path connection signal to at least of the boom head and rod return solenoids to control the boom cylinder when an arm lever is manipulated in a boom float mode. |
地址 |
Donggu Ulsan KR |