GB1470499A - Forklift trucks - Google Patents
Forklift trucksInfo
- Publication number
- GB1470499A GB1470499A GB5866672A GB5866672A GB1470499A GB 1470499 A GB1470499 A GB 1470499A GB 5866672 A GB5866672 A GB 5866672A GB 5866672 A GB5866672 A GB 5866672A GB 1470499 A GB1470499 A GB 1470499A
- Authority
- GB
- United Kingdom
- Prior art keywords
- truck
- valve
- mast
- ram
- slope
- 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
- B66F9/20—Means for actuating or controlling masts, platforms, or forks
- B66F9/22—Hydraulic devices or systems
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)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
1470499 Fork lift trucks LINER CONCRETE MACHINERY CO Ltd 19 March 1974 [19 Dec 1972] 58666/72 Heading B8L A fork lift truck comprises a mast 1, and if the truck is standing on a slope as shown in Fig. 4 (not shown), the mast is automatically tilted relative to the truck into an upright orientation. The mast is mounted on a subchassis 3 which is connected to the front axle 5 of the truck by means of two hydraulic rams 8, 9, the upper chamber 13 of ram 8 being connected to the lower chamber 14 of ram 9 and vice versa through a spool valve 17, and when the truck is located on a slope the pressure in one of the lower chambers 14 is increased and this causes upward displacement of a signalling ram 23 which is mounted in the valve 17, whereby oil is supplied from a reservoir 15 by a pump 16 through the valve 17 to the rams 8, 9 to bring the mast 1 into an upright orientation, at which time the ram 23 returns to its neutral position in valve 17. In the embodiment of Fig. 5 (not shown), the valve (17) is actuated by a pendulum (27) which is suspended from the truck mast and which actuates a rod (29) which forms part of the valve (17).
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5866772A GB1470500A (en) | 1972-12-19 | 1972-12-19 | Stabilising fork lift trucks and other vehicles |
GB5866672A GB1470499A (en) | 1972-12-19 | 1972-12-19 | Forklift trucks |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5866672A GB1470499A (en) | 1972-12-19 | 1972-12-19 | Forklift trucks |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1470499A true GB1470499A (en) | 1977-04-14 |
Family
ID=10482141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5866672A Expired GB1470499A (en) | 1972-12-19 | 1972-12-19 | Forklift trucks |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1470499A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4340235A (en) * | 1979-10-04 | 1982-07-20 | Towmotor Corporation | Load responsive damping system |
US4708577A (en) * | 1986-04-03 | 1987-11-24 | Fratzke Mark E | Self-leveling fork lift apparatus |
US5195864A (en) * | 1991-08-28 | 1993-03-23 | Case Corporation | Hydraulic system for a wheel loader |
EP2065334A1 (en) | 2007-11-30 | 2009-06-03 | Jungheinrich Aktiengesellschaft | Tipping mechanism for a lifting frame of an industrial truck and transport method of an industrial truck |
-
1972
- 1972-12-19 GB GB5866672A patent/GB1470499A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4340235A (en) * | 1979-10-04 | 1982-07-20 | Towmotor Corporation | Load responsive damping system |
US4708577A (en) * | 1986-04-03 | 1987-11-24 | Fratzke Mark E | Self-leveling fork lift apparatus |
US5195864A (en) * | 1991-08-28 | 1993-03-23 | Case Corporation | Hydraulic system for a wheel loader |
EP2065334A1 (en) | 2007-11-30 | 2009-06-03 | Jungheinrich Aktiengesellschaft | Tipping mechanism for a lifting frame of an industrial truck and transport method of an industrial truck |
DE102007057678A1 (en) * | 2007-11-30 | 2009-06-04 | Jungheinrich Aktiengesellschaft | Tilting mechanism for a truck mast and transport method for a truck |
US8453798B2 (en) | 2007-11-30 | 2013-06-04 | Jungheinrich Aktiengesellschaft | Tilting mechanism for a lifting structure of an industrial truck, and method for transporting an industrial truck |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |