GB1252786A - - Google Patents
Info
- Publication number
- GB1252786A GB1252786A GB1252786DA GB1252786A GB 1252786 A GB1252786 A GB 1252786A GB 1252786D A GB1252786D A GB 1252786DA GB 1252786 A GB1252786 A GB 1252786A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheels
- rams
- travelling
- selector valves
- valves
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/02—Steering linkage; Stub axles or their mountings for pivoted bogies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
- B66C19/005—Straddle carriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
- Jib Cranes (AREA)
Abstract
1,252,786. Vehicle steering mechanism. VALMET OY. 7 Oct., 1969 [11 Oct., 1968], No. 49099/69. Heading B7H. The wheels 1a, 1b, 1c, 1d of a mobile gantry crane are each turnable by means of a respective one of hydraulic rams 5a, 5b, 5c, 5d between positions corresponding to first and second main travelling directions I, II, the wheels 1b, 1c being steerable by means of the rams 5b, 5c when the crane is travelling in direction I, and the wheels 1c, 1d being steerable by means of the rams 5c, 5d when travelling in direction II. Operation of the rams 5a, 5b, 5c, 5d is controlled by an hydraulic system comprising a steering control valve 8 actuated by a steering wheel 7, selector valves 10, 11, 12, 13, 14, 15, and an engine driven pump P which supplies pressure fluid from a reservoir 9. As shown, the wheels are orientated for travelling in direction I and the selector valves are positioned so that the wheels 1b, 1c can be steered by actuating the steering wheel 7. In Fig. 4 (not shown) the wheels and valves are positioned for travelling in direction II, and in Fig. 2 (not shown) the selector valves are positioned so that all the rams are actuated simultaneously to turn the diagonally opposite wheels la, 1c in one direction and the other diagonally opposite wheels 1b, 1d in the opposite direction through 90 degrees from the position corresponding to direction I to that corresponding to direction II.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI289468 | 1968-10-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1252786A true GB1252786A (en) | 1971-11-10 |
Family
ID=8507730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1252786D Expired GB1252786A (en) | 1968-10-11 | 1969-10-07 |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1950576A1 (en) |
GB (1) | GB1252786A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0153204A2 (en) * | 1984-02-16 | 1985-08-28 | Marine Travelift, Inc. | Hydraulic steering synchronization system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4209281C2 (en) * | 1992-03-21 | 1996-02-08 | Steinweg Hermann Gmbh Co Kg | Mobile lifting device with a height-adjustable working platform |
US6702864B2 (en) * | 2000-10-11 | 2004-03-09 | Shell Oil Company | Process for making high stretch and elastic knitted fabrics from polytrimethylene terephthalate |
DE102004059751B4 (en) * | 2004-12-11 | 2008-06-19 | Noell Mobile Systems & Cranes Gmbh | Portal forklift with power steering |
-
1969
- 1969-10-07 DE DE19691950576 patent/DE1950576A1/en active Pending
- 1969-10-07 GB GB1252786D patent/GB1252786A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0153204A2 (en) * | 1984-02-16 | 1985-08-28 | Marine Travelift, Inc. | Hydraulic steering synchronization system |
EP0153204A3 (en) * | 1984-02-16 | 1987-12-09 | Marine Travelift, Inc. | Hydraulic steering synchronization system |
Also Published As
Publication number | Publication date |
---|---|
DE1950576A1 (en) | 1970-04-23 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3696881A (en) | Vehicle steering system of the fluid power type and spring centered, spring modulated control cylinder therefor | |
GB986656A (en) | Industrial trucks | |
GB1529302A (en) | Steering arrangements for mobile cranes | |
GB1115296A (en) | Improvements in or relating to loader devices | |
ATE470616T1 (en) | TWO CIRCLE HYDRAULIC STEERING SYSTEM | |
GB1358025A (en) | Steering system | |
GB1252786A (en) | ||
ES422564A1 (en) | Hydrastatic control for pivot steering | |
GB1084141A (en) | ||
GB1485686A (en) | Hydraulic system for a pipelayer | |
US4199038A (en) | Steering gear with steering drop arm | |
US3227238A (en) | Hydraulic steering systems | |
GB1240582A (en) | Synchronized four-wheel steering system | |
US3765306A (en) | Sensing cylinder | |
GB1356136A (en) | Steering system | |
US3766836A (en) | Spring centered, spring modulated control cylinder | |
JPH0249108Y2 (en) | ||
SU1229084A1 (en) | Vehicle undercarriage hydraulic drive | |
GB1058163A (en) | Steering mechanism | |
GB1259160A (en) | ||
GB1146797A (en) | Improvements in or relating to hydrostatic steering systems, particularly for motor vehicles | |
GB1273550A (en) | Improvements in hydraulic steering systems | |
GB969019A (en) | Improvements in or relating to mobile cranes and similar vehicles | |
GB1011751A (en) | Improvements in or relating to hydraulic pressure control valves | |
SU1146227A1 (en) | Wheeled vehicle hydraulic steering system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |