61 |
Hydro-electric control system |
US26118663 |
1963-02-26 |
US3239087A |
1966-03-08 |
THEODORE ALLARD PIERRE JEAN-MA |
|
62 |
Hydraulic load carrier |
US22835062 |
1962-10-04 |
US3237798A |
1966-03-01 |
HAMPL DELMAR L |
|
63 |
Loading gear |
US36609664 |
1964-05-08 |
US3230717A |
1966-01-25 |
GUSTAF ALDEN LARS ANDERS |
|
64 |
Valve for controlling movement of a fluid power unit |
US22531562 |
1962-09-21 |
US3207177A |
1965-09-21 |
ANTHONY NEVULIS |
|
65 |
Patient lift |
US32789563 |
1963-12-04 |
US3203009A |
1965-08-31 |
ALFRED LUNDBERG OLAF |
|
66 |
Stabilizer for fluid cylinder plungers of high slenderness ratio |
US69212957 |
1957-10-24 |
US3016992A |
1962-01-16 |
HART WILSON JOHN |
|
67 |
Hydraulic crane |
US55139855 |
1955-12-06 |
US2906413A |
1959-09-29 |
MINTY JOHN E |
|
68 |
Cylinder head and liner hoists |
US74374658 |
1958-06-23 |
US2905337A |
1959-09-22 |
CUTSHALL GAROLD W |
|
69 |
Pressure fluid servomotor |
US41989354 |
1954-03-30 |
US2868175A |
1959-01-13 |
ELIS FORSLUND JOHAN |
|
70 |
Pallet lifter |
US29531252 |
1952-06-24 |
US2741371A |
1956-04-10 |
OSWALT GEORGE L |
|
71 |
Hydraulic telemeter system with variable-rate valve shutoff unit |
US6348248 |
1948-12-04 |
US2524055A |
1950-10-03 |
HUBERT CLARENCE A |
|
72 |
Hoist |
US71424746 |
1946-12-05 |
US2476192A |
1949-07-12 |
HALL SELDEN H |
|
73 |
Portable derrick |
US12079137 |
1937-01-15 |
US2168128A |
1939-08-01 |
BERNARD KERVARREC |
|
74 |
크레인의 조작 장치 |
KR1020177015089 |
2015-08-20 |
KR1020170081674A |
2017-07-12 |
타마이히사오; 고토토모카즈 |
훅격납작업시에도유압액추에이터가권과상태로될 때까지는동작이빨라서, 작업성이좋은크레인의조작장치를제공한다. 훅(24)의권과상태를검지하는권과검지기(28)와, 윈치용유압액추에이터(32)와, 윈치용유압액추에이터(32)에공급하는작동유의방향을전환하는훅 격납전환제어밸브(44)와, 회로압력을설정하는릴리프회로(50)를구비하고, 릴리프회로(50)는, 권과검지기(28)가권과상태를검지하고있지않은경우에회로압력을고압으로설정하고, 권과검지기(28)가권과상태를감지하고있고, 또한, 훅격납전환제어밸브(44)가권상위치로전환되어있는경우에회로압력을저압으로설정한다. 훅(24)이비권과상태인경우에회로압력이고압으로설정되므로, 훅격납작업시에도권과상태가될 때까지는유압액추에이터의동작이빠르고, 작업성이좋다. |
75 |
편중 가능한 데릭 크레인 |
KR1020080003425 |
2008-01-11 |
KR1020090077453A |
2009-07-15 |
최상돈 |
An eccentric derrick crane is provided to have a general truck and forklift truck moved on the side space of the derrick crane since the derrick crane can be installed on the top surface of a bridge with being inclined to the one side of the bridge. An eccentric derrick crane comprises a main supporting unit(1), a vertical rotating unit(3), and an operation boom(5). The main supporting unit is located in the top surface of main bridge. The vertical rotating unit is installed at the main supporting unit. The operation boom is installed at the vertical rotating unit and the angle is adjusted by a wire. The vertical rotating unit and the operation boom are installed at the one side of the main supporting unit with being inclined to the one side. |
76 |
차량용 휠체어 스쿠터 윈치장치 |
KR2020020038953 |
2002-12-30 |
KR200309066Y1 |
2003-03-29 |
김진수; 임구 |
본 고안은 휠체어나 스쿠터를 차량에 탑재시키기 위한 윈치장치로서, 보관상태에서 동작준비 상태로 윈치장치를 쉽게 셋팅할 수 있는 스프링(9) 등의 장치를 포함하고 있다. |
77 |
크레인 |
KR1020110028900 |
2011-03-30 |
KR101055521B1 |
2011-08-08 |
이봉석 |
PURPOSE: A crane is provided to be used for various construction fields by efficiently transferring objects to various positions even in a narrow space. CONSTITUTION: A crane comprises a base plate(1), a support(2), and a transfer rod(3). The base plate is fixed to a bottom surface. The support is vertically positioned at the top of the base plate. A hydraulic cylinder for ascending and descending the transfer rod is formed in the support. The transfer rod is vertically reciprocated on the support and is composed of a fixed unit and a rotary unit. The fixed unit is fixed to the longitudinal end of a piston rod of the hydraulic cylinder. The rotary unit is coupled to the fixed unit and is horizontally rotated. |
78 |
원격제어가 가능한 크레인 |
KR1020090000465 |
2009-01-05 |
KR1020100081166A |
2010-07-14 |
신영진 |
PURPOSE: A remote control crane is provided to facilitate work through remote control and allow an operator to quickly handle the surrounding situation. CONSTITUTION: A remote control crane comprises a hydraulic line selecting unit, a control unit(100), and a control unit. In the hydraulic line selecting unit, a power source(20) is an electric motor which is installed on a main body(10) and driven with power provided from an external power supply, traveling section drive units(50,50') is hydraulic motors which are provided with hydraulic pressure from a hydraulic pump(30) to drive a traveling section, and a winch(90) is a hydraulic winch which is provided with hydraulic pressure from the hydraulic pump to lift a hook(81). The hydraulic line selecting unit selectively distributes the hydraulic pressure from the hydraulic pump to the traveling section drive unit, a swing section hydraulic motor(60), a cylinder tool(70), and the winch. The control unit has a controller(101) for controlling the flow of fluid and a transceiver(102) which receives an external wireless signal and transmits the signal to the controller. |
79 |
대형 구조물 인양장치 |
KR1020080071116 |
2008-07-22 |
KR1020100010226A |
2010-02-01 |
손영혁 |
PURPOSE: A large structure lifting facility is provided to reduce working time by extending lifting distance and increasing the lifting force of a cylinder. CONSTITUTION: A block system(30,30') is installed on the lower end of a main beam. Three sides of the block system are installed to surface-contact a rectangular bar(40). Rectangular bar supporting guides(50,50') are installed on the upper and the lower part of the block system and partially support the block system. A jaw installs a hydraulic valve(35,35') and enables clamping and unclamping operation due to the inflow and the outflow of the hydraulic oil. The cylinders(32,32') are composed of an integrated tube shape. |
80 |
조이스틱을 이용한 넉클 크레인의 구동장치 |
KR1020070036752 |
2007-04-16 |
KR1020080093182A |
2008-10-21 |
장정현; 김이훈 |
An apparatus for operating a knuckle crane using a joystick is provided to prevent overload generation in an engine by driving a cylinder of the knuckle crane in a hydraulic operation. An apparatus for operating a knuckle crane using a joystick includes first and second joysticks(12,24), first and second push pedals(16,20), ports(10a-10f), a main control valve(10), and a pressure block(28). The first joystick consists of a first joystick valve(14) connected to a swing cylinder(a) and an outer boom cylinder(c), and drives a swing and an outer boom. The second joystick includes a second joystick valve(26) connected to a grapple cylinder(f) and a main boom cylinder(b), and drives a grapple and a main boom. The first push pedal includes a first push pedal valve(18) connected to an extension boom cylinder(d) and drives an extension boom. The second push pedal includes a second push pedal valve(22) connected to a rotator cylinder(e) and drives rotator. The ports are connected to the first and second joystick valves, first and second push pedal valves, and the cylinders. The main control valve drives the knuckle crane. The pressure block provides hydraulic pressure to each of the cylinders and re-provides the hydraulic pressure to an oil tank(32). |