GB1181490A - Mast Assemblies for Lift Trucks. - Google Patents
Mast Assemblies for Lift Trucks.Info
- Publication number
- GB1181490A GB1181490A GB2005968A GB2005968A GB1181490A GB 1181490 A GB1181490 A GB 1181490A GB 2005968 A GB2005968 A GB 2005968A GB 2005968 A GB2005968 A GB 2005968A GB 1181490 A GB1181490 A GB 1181490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mast
- movable
- conduits
- conductors
- spring
- 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
- 230000000712 assembly Effects 0.000 title abstract 3
- 238000000429 assembly Methods 0.000 title abstract 3
- 239000004020 conductor Substances 0.000 abstract 6
- 239000012530 fluid Substances 0.000 abstract 4
- 230000008602 contraction Effects 0.000 abstract 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
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
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/205—Arrangements for transmitting pneumatic, hydraulic or electric power to movable parts or devices
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
1,181,490. Taking up slack in cables; masted lift trucks. CLARK EQUIPMENT CO. 26 April, 1968 [12 June, 1967], No. 20059/68. Headings B8B and B8H. An apparatus for receiving a pair of flexible fluid conduits 76, 86 extending between a movable and a stationary section of a lift truck telescopic mast comprises a beam 108 movable relative and parallel to the mast sections and having a sheave assembly 94, 96 at each end around each of which, one of the conduits is looped. The conduits extend in opposite directions from a plate 138 attached to the movable mast section, around the sheave assemblies 94, 96 which are spring-biased outwardly from the beam 108, and are then coupled to a plate 134 mounted on the stationary mast section. Contraction in either conduit due to fluid pressurization therein is absorbed by compression of the spring associated with the appropriate sheave assembly, and flexible electrical conductors 140, 148 coextending with and clipped to the conduits merely become slack when the conduit contracts. In the embodiment of Figs. 9, 10 (not shown), the sheave assemblies at the ends of the beam are not spring-loaded but the conductors are spring-biased to take up slack and remove tension in the conductors as the beam moves, due to contraction of the conduits. The embodiment of Fig. 11 (not shown), is similar to the previous embodiment but both conductors are coupled together by a spring- loaded plate which is linearly movable to tension both conductors, or pivotally movable to take up slack in one and pay out the other. The conduits supply fluid to be used as a power source to a valve on a carrier vertically movable on the upper section of the mast, and the valve is controlled by solenoids supplied with power via the said conductors. The carrier is movable by chains extending between the carrier and the cylinder of a mast operating fluid ram and passing over sprockets on the upper piston of the ram. Both a two- and a three-section mast are described.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US64538967A | 1967-06-12 | 1967-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181490A true GB1181490A (en) | 1970-02-18 |
Family
ID=24588828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2005968A Expired GB1181490A (en) | 1967-06-12 | 1968-04-26 | Mast Assemblies for Lift Trucks. |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE715334A (en) |
| DE (1) | DE1756528A1 (en) |
| FR (1) | FR1565892A (en) |
| GB (1) | GB1181490A (en) |
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 |
| DE2815024C2 (en) * | 1978-04-07 | 1986-05-07 | O & K Orenstein & Koppel Ag, 1000 Berlin | Clamping and working distance compensation arrangement for hydraulic hoses on lift masts of forklifts |
-
1968
- 1968-04-26 GB GB2005968A patent/GB1181490A/en not_active Expired
- 1968-05-16 FR FR1565892D patent/FR1565892A/fr not_active Expired
- 1968-05-17 BE BE715334D patent/BE715334A/xx unknown
- 1968-06-01 DE DE19681756528 patent/DE1756528A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1756528A1 (en) | 1971-11-18 |
| BE715334A (en) | 1968-10-16 |
| FR1565892A (en) | 1969-05-02 |
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