GB944225A - Improvements in or relating to load lifting devices - Google Patents
Improvements in or relating to load lifting devicesInfo
- Publication number
- GB944225A GB944225A GB4134260A GB4134260A GB944225A GB 944225 A GB944225 A GB 944225A GB 4134260 A GB4134260 A GB 4134260A GB 4134260 A GB4134260 A GB 4134260A GB 944225 A GB944225 A GB 944225A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mast
- carriage
- piston
- cylinder
- primary
- 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
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/08—Masts; Guides; Chains
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
944,225. Masted lift trucks. LINDE'S EISMASCHINEN A.G. GES FUR. Dec. 1, 1960 [Dec. 4, 1959], No. 41342/60. Heading B8H. The mast assembly of a fork lift truck comprises a single fixed primary mast 1, a secondary mast 4 slidable on the primary mast and a lift carriage 5 slidable on the secondary mast, with lifting means for both raising the carriage on the secondary mast and subsequently raising the secondary mast on the primary mast. As shown, the secondary mast 4 is tubular and surrounds the open topped tubular primary mast 1, there being an hydraulic ram cylinder 7 secured to the top plate 6 of mast 4 and extending down into the mast 1. The carriage 5 is raised on the mast 4 by a pair of chains 9, 10, passing from the carriage, over pulleys or sprockets 12, 11 mounted on the plate 6 and hollow piston-rod 14 of ram cylinder 7 respectively, to anchorages 8 on the plate 6. As the piston 15 reaches the bottom of cylinder 7, when the carriage 5 reaches the top of mast 4, a valve 18 in the piston is opened on engagement with the cylinder bottom 19 thereby allowing pressure fluid to pass from the cylinder 7 into the hollow piston-rod 14 to force down a piston 20 which is provided with a piston-rod 23 engaging the base of the mast 1, whereby the mast 4 is raised on the mast 1. The carriage 5 is locked automatically at the top of the mast 4 by engagement of a lug 27 on the carriage with a slot 26 in a rotatable cam so that the cam is rotated thereby to bring its surface 29 into contact with a wedge 32 which is moved upwardly by a spring 31 after a retaining catch 34 has been released by the carriage.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEG28508A DE1189922B (en) | 1959-12-04 | 1959-12-04 | Loader with telescopic central mast |
Publications (1)
Publication Number | Publication Date |
---|---|
GB944225A true GB944225A (en) | 1963-12-11 |
Family
ID=7123496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4134260A Expired GB944225A (en) | 1959-12-04 | 1960-12-01 | Improvements in or relating to load lifting devices |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE1189922B (en) |
GB (1) | GB944225A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561568A (en) * | 1968-10-02 | 1971-02-09 | Towmotor Corp | Latching assembly for forklift trucks |
EP0443843A1 (en) * | 1990-02-20 | 1991-08-28 | Japanic Corporation | Lifting apparatus |
EP1357080A2 (en) * | 2002-04-24 | 2003-10-29 | Werner Georg Schröder | Lift truck with central mast |
EP1369376A1 (en) * | 2002-06-05 | 2003-12-10 | BT Industries | Telescopic truck mast with balancing cylinder for the dead weight |
US8714311B2 (en) | 2008-09-12 | 2014-05-06 | Crown Equipment Corporation | Monomast for a materials handling vehicle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2233281A1 (en) * | 1972-07-06 | 1974-01-24 | Linde Ag | LIFTING FRAME FOR A LIFTING LOADER |
NL189558C (en) * | 1978-08-14 | 1993-05-17 | Asea Ab | LIFTING FORK FORKLIFT VEHICLES. |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE705242C (en) * | 1938-07-30 | 1941-04-21 | Hengstler Fa E | Hydraulic lifting equipment, in particular car jacks |
DE925080C (en) * | 1941-12-05 | 1955-03-10 | Nabenfabrik Alfing Kessler Kom | Venting device for the working cylinder of pressure fluid drive devices or the like. |
DE947778C (en) * | 1947-06-05 | 1956-08-23 | Clark Equipment Co | Floor conveyor with the most compact design possible in relation to the floor plan |
DE900800C (en) * | 1950-06-16 | 1954-01-04 | Miag Fahrzeugbau G M B H | Device for locking the load carrier and the retractable and extendable support frame part in the case of height-adjustable conveyors, especially forklifts |
FR1033795A (en) * | 1951-03-09 | 1953-07-15 | Cie Gen De Constr De Fours | Material handling forklift |
DE908472C (en) * | 1951-07-10 | 1954-04-05 | Miag Fahrzeugbau G M B H | Device for locking the load carrier and the adjustable support frame part in the case of height-adjustable conveyor means with a locking and a locking means |
CH325334A (en) * | 1953-10-02 | 1957-10-31 | Miag Muehlenbau & Ind Gmbh | Lift mast on forklift |
USRE24958E (en) * | 1954-09-30 | 1961-03-28 | G ehmann | |
DE1001945B (en) * | 1955-01-07 | 1957-01-31 | Miag Muehlenbau & Ind Gmbh | Conveyor vehicle with lifting device |
DE963750C (en) * | 1955-06-22 | 1957-05-09 | Demag Ag | Hydraulic cylinder with telescoping pistons |
US2915144A (en) * | 1955-10-31 | 1959-12-01 | Hyster Co | Free lift truck |
GB795695A (en) * | 1955-11-01 | 1958-05-28 | Diac Ltd | Improvements relating to load handling trucks |
FR1173046A (en) * | 1956-03-28 | 1959-02-18 | Ver Westdeutsche Waggonfab | Lifting mast for transport and loading machinery |
DE1039935B (en) * | 1957-03-09 | 1958-09-25 | Max Von Nickisch Rosenegk Dipl | Parallel gripper for stacking devices |
DE1761584U (en) * | 1957-12-12 | 1958-02-13 | Irion & Vosseler | EQUIPMENT FOR LIFTING MAST AND LIFTING CARRIAGE MOVEMENT OF FLOOR CONVEYOR EQUIPMENT. |
-
1959
- 1959-12-04 DE DEG28508A patent/DE1189922B/en active Pending
-
1960
- 1960-12-01 GB GB4134260A patent/GB944225A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3561568A (en) * | 1968-10-02 | 1971-02-09 | Towmotor Corp | Latching assembly for forklift trucks |
EP0443843A1 (en) * | 1990-02-20 | 1991-08-28 | Japanic Corporation | Lifting apparatus |
EP1357080A2 (en) * | 2002-04-24 | 2003-10-29 | Werner Georg Schröder | Lift truck with central mast |
EP1357080A3 (en) * | 2002-04-24 | 2006-05-31 | Werner Georg Schröder | Lift truck with central mast |
EP1369376A1 (en) * | 2002-06-05 | 2003-12-10 | BT Industries | Telescopic truck mast with balancing cylinder for the dead weight |
US7175000B2 (en) | 2002-06-05 | 2007-02-13 | Bt Industries | Lifting truck with displaceable masts and balancing cylinder |
US8714311B2 (en) | 2008-09-12 | 2014-05-06 | Crown Equipment Corporation | Monomast for a materials handling vehicle |
US8851825B2 (en) | 2008-09-12 | 2014-10-07 | Crown Equipment Corporation | Fork carriage apparatus for a materials handling vehicle |
US10144626B2 (en) | 2008-09-12 | 2018-12-04 | Crown Equipment Corporation | Fork carriage apparatus for a materials handling vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE1189922B (en) | 1965-03-25 |
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