WO2001062658A1 - Anti-crush-system for open safety frames of for example fork-lift trucks - Google Patents
Anti-crush-system for open safety frames of for example fork-lift trucks Download PDFInfo
- Publication number
- WO2001062658A1 WO2001062658A1 PCT/NL2000/000602 NL0000602W WO0162658A1 WO 2001062658 A1 WO2001062658 A1 WO 2001062658A1 NL 0000602 W NL0000602 W NL 0000602W WO 0162658 A1 WO0162658 A1 WO 0162658A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mentioned
- crush
- open safety
- fork
- safety frame
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/13—Roll-over protection
- B60R21/131—Protective devices for drivers in case of overturning of tractors
-
- 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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- 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
- B66F9/07545—Overhead guards
Definitions
- the present invention relates to a device, also called anti-crush-system, to protect drivers in open safety frames of for example fork-lift trucks and articulated loaders against getting trapped during situations when due to wrong manouvres the mentioned fork-lift truck tips over and the driver jumps or falls off and gets trapped between the heavy vehicle and the ground with possible serious physical injury or possibly worse.
- Open safety frames are used on several vehicles in the business.
- Concerning vehicles are fork-lift trucks, articulated loaders and such. Mentioned vehicles can tip over under certain circumstances, by which the driver can get trapped between the bars of the open safety frame and the ground and it should be taken into account that these vehicles weigh tons. The injuries can be very serious to fatal.
- warning signals are given on eye-level, such as fasten seatbelt, if truck tips over do not jump, lean forward and lean away from impact, but the effect shall be minor when tipping over, as this usually happens very fast.
- the possible tipping of motorized vehicles with an open safety frame around the driver generally has a high risk for the driver.
- the purpose of the present invention is to prevent (serious) physical injury of the driver when tipping over of the fork-lift truck, articulated loader and such, which have open safety frames. So the driver should never get part of the vehicle's weight on himself leading to crushing of the body and/or limbs.
- a device according to the invention is surprisingly develloped in such a way characterized in that the vehicle with open safety frame, here the fork-lift truck or articulated loader, has sideways, preferably in the mentioned open safety frame approximately squared (at right angels) on the longitudinal axis (direction of the traffic of, for example, the fork-lift truck) , two in opposite direction very fast extending (shooting out) mounted support legs of the anti-crush-system, by which when sideways tipping over of the fork-lift truck with open safety frame, the mentioned concerned mounted rapidly extending support legs are released at a pre-set tipping angle ( ) and locked in extended position.
- the vehicle with open safety frame here the fork-lift truck or articulated loader
- the device according the invention is further developed in such a way that the mentioned fast extending support legs as a preferred construction are strongly preloaded and double locked extending or shooting out telescopic support legs and are mounted in the rear, as tube constructed transverse beam of the mentioned open safety frame and that the mentioned preload consists of a long spring which is mounted over approximately the complete rear transverse beam of the existing open safety frame .
- the advantages are a very rapid and strong reacting support leg as a spacer sleeve between the ground and preferably the upper part of the machine and mounted to the heaviest part of the machine, here the fork-lift truck.
- the device according the invention is developed in such a way that the mentioned lock is executed as a articulated hinging spring loaded locked rod system coupled to a pawl or pawl construction, by which the mentioned locking takes place by means of a pendulum supplied with a circle segment and weight, which locking construction activates under a tipping angle larger than and the anti- crush-system is extended, and that the mentioned tipping angle x is preferably approximately 30°.
- the device according to the invention is developed in such a way that the mentioned pawl construction with rounded ends in operation rests against a roller construction of the mentioned anti-crush-system which is situated in a tubular casing of the mentioned open safety frame and that the pawl construction in tipped position by means of the other rounded end keeps the telescopic anti-crush-system in position and locks it.
- the device according to the invention is developed in such a way that the two mentioned telescopic legs of the anti-crush-system are hinged folding from the roof of the open safety frame by which the drive can be spring loaded or gas loaded.
- Fig. 1 shows a view in oblique perspective of a fork- lift truck with open safety frame on which the safety device according to the invention can be applied;
- Fig. 2 shows a rear view of a fork-lift truck with open safety frame in upright and tipped over position if no anti-crush-system according to the invention has been applied;
- Fig. 3 shows a rear view of a fork-lift truck with open safety frame in tipping and tipped over position when the anti-crush-system according to the invention has been applied;
- Fig. 4,5,6 show a rear view of the fork-lift truck with open safety frame in tipping position, when the anti-crush-system according to the invention is activated;
- Fig. 7 shows a partial front view and sectional view of the locking device of the anti-crush-system according to the invention;
- Fig. 8 shows a partial side view and sectional view of the locking device of the anti-crush-system according to figure 7;
- FIG. 9 shows a partial front view and sectional view of the activation of the locking device of the anti-crush-system according to the invention
- Fig. 10 shows further possible second preferred constructions of the anti-crush-system according to the invention.
- Figure 1 shows a view in oblique perspective of a fork- lift truck 1 with open safety frame 2, constructed of solid or bending rigid steel sections.
- Figure 2 shows a rear view of the mentioned fork-lift truck in upright position 3 and tipped over position 4. In tipped over position 4 the drivers' body, possibly seized by panic (not shown) can be trapped between the open safety frame 2 and the ground 5, which due to the heavy weight of the fork-lift truck 1 can be fatal.
- the present invention relates to an anti-crush-system for open safety frames, that always works, and which is integrated in the existing open safety frame.
- the essence of the added revision is to make sure that the truck during a tipping over accident does not fall on its side, but due to the anti-crush-system 6 on or in the open safety frame 2 will keep a clearance between the truck and the ground in such a way that there is no or considerably less danger for the driver getting trapped is achieved.
- the tipping over in this situation is shown in figure 3.
- Figures 4, 5 and 6 show in rear view the fork-lift truck 1 with open safety frame 2 in tipped position, in which the anti-crush-system 6 according the invention under the angle ⁇ c releases the locking device 7 and shoots out.
- Figure 7 shows in partial front view and sectional view the locking device 7 of the anti-crush-system.
- a telescopic or shoot out support leg 9 mostly preloaded by a heavy spring 26, is locked by a pawl 10 against a roller 11 of the support leg rod 12.
- the mentioned pawl 10 is kept in position by the hinged articulated rod system 13, that in their turn are kept in sheded position by a pendulum 14 with on its end a weight 15.
- the pendulum 14 rests by means of a circular segment 16 on an axel roller 17 of the mentioned hinged articulated rod system 13.
- Figure 8 shows in partial side view and sectional view the locking device 7 of the anti-crush-system 6.
- the pendulum 14 with the circular segment 16 and the weight 15 are left out.
- FIG. 7 also shows the draw spring 20 of the hinged articulated rod system 13.
- Figure 9 shows the shooting out of the anti-crush-system 6 with several positions of the locking device 7.
- the pawl 10 hinges around an axis 21, so that the same pawl 10 fixes the support leg 12 in extended position at the stop block 22.
- the extended stroke of the support leg 12 is limited by the end stop block 23.
- the pawl 10 In order to withstand the impact of the crash better, in this position (figure 9) the pawl 10 also supports on an angle steel 24 applied as a corner reinforcement in the open safety frame 2 and welded on the post 25.
- FIGS 10 and 11 show variants of the construction of the anti-crush-system 6, which figures as far as the working shall be clear to the experts in this area and which can be further modified and constructed by them by means of this patent. Finally it has to be emphasized that the above description constitutes the preferred construction of the present invention but as shown in the last figures 10 and 11 that further variations and modifications are possible without departing the scope of this patent description.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU73234/00A AU7323400A (en) | 2000-02-25 | 2000-08-29 | Anti-crush-system for open safety frames of for example fork-lift trucks |
EP00961254A EP1180089A1 (en) | 2000-02-25 | 2000-08-29 | Anti-crush-system for open safety frames of for example fork-lift trucks |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL1014496 | 2000-02-25 | ||
NL1014496A NL1014496C1 (en) | 2000-02-25 | 2000-02-25 | Anti-crushing device for open safety frames of, for example, forklift trucks. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001062658A1 true WO2001062658A1 (en) | 2001-08-30 |
Family
ID=19770897
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NL2000/000602 WO2001062658A1 (en) | 2000-02-25 | 2000-08-29 | Anti-crush-system for open safety frames of for example fork-lift trucks |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1180089A1 (en) |
AU (1) | AU7323400A (en) |
NL (1) | NL1014496C1 (en) |
WO (1) | WO2001062658A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018262A1 (en) * | 2000-08-29 | 2002-03-07 | Christiaan Johan Jansen | Anticrush device for fork-lift trucks or articulated loaders |
DE102005028879B4 (en) * | 2005-06-22 | 2008-01-03 | Wilhelm Karmann Gmbh | Rollover protection system for a motor vehicle |
CN101847448A (en) * | 2010-04-30 | 2010-09-29 | 中兴通讯股份有限公司 | Automatic leveling device and method |
CN104842967A (en) * | 2014-04-16 | 2015-08-19 | 北汽福田汽车股份有限公司 | Anti-rollover device for vehicles, and vehicle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITPI20130076A1 (en) | 2013-08-28 | 2015-03-01 | Pasquale Villa | ANTI-ROLL-UP DEVICE FOR VEHICLES |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1059068A (en) * | 1965-12-11 | 1967-02-15 | John Evald Ottosson | Improvements in or relating to cabin-like protective guard structures for tractors |
FR2001078A1 (en) * | 1969-01-13 | 1969-09-19 | Lacabanne Francis | |
DE1915753A1 (en) * | 1969-03-27 | 1971-02-25 | Ed Scharwaechster Kg | Device on vehicles, in particular tractors or farm tractors, to prevent rollover |
FR2314090A1 (en) * | 1975-06-10 | 1977-01-07 | Belin Ets | Tractor overturn safety device - has props extending from top of arch fixed to tractor frame |
DE9016969U1 (en) * | 1990-12-15 | 1991-04-11 | Newig, Kurt, Dipl.-Ing., 3000 Hannover, De | |
DE4228590A1 (en) * | 1992-08-27 | 1994-03-03 | Manfred Wolf | Protective roof for driver of fork lift truck - has swivel-mounted roof sections controlled by movement of pendulum |
DE4404971A1 (en) * | 1994-02-17 | 1995-08-24 | Hans Klaus Wallburg | Driver's protective roof for industrial vehicle |
-
2000
- 2000-02-25 NL NL1014496A patent/NL1014496C1/en not_active IP Right Cessation
- 2000-08-29 EP EP00961254A patent/EP1180089A1/en not_active Withdrawn
- 2000-08-29 WO PCT/NL2000/000602 patent/WO2001062658A1/en not_active Application Discontinuation
- 2000-08-29 AU AU73234/00A patent/AU7323400A/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1059068A (en) * | 1965-12-11 | 1967-02-15 | John Evald Ottosson | Improvements in or relating to cabin-like protective guard structures for tractors |
FR2001078A1 (en) * | 1969-01-13 | 1969-09-19 | Lacabanne Francis | |
DE1915753A1 (en) * | 1969-03-27 | 1971-02-25 | Ed Scharwaechster Kg | Device on vehicles, in particular tractors or farm tractors, to prevent rollover |
FR2314090A1 (en) * | 1975-06-10 | 1977-01-07 | Belin Ets | Tractor overturn safety device - has props extending from top of arch fixed to tractor frame |
DE9016969U1 (en) * | 1990-12-15 | 1991-04-11 | Newig, Kurt, Dipl.-Ing., 3000 Hannover, De | |
DE4228590A1 (en) * | 1992-08-27 | 1994-03-03 | Manfred Wolf | Protective roof for driver of fork lift truck - has swivel-mounted roof sections controlled by movement of pendulum |
DE4404971A1 (en) * | 1994-02-17 | 1995-08-24 | Hans Klaus Wallburg | Driver's protective roof for industrial vehicle |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002018262A1 (en) * | 2000-08-29 | 2002-03-07 | Christiaan Johan Jansen | Anticrush device for fork-lift trucks or articulated loaders |
DE102005028879B4 (en) * | 2005-06-22 | 2008-01-03 | Wilhelm Karmann Gmbh | Rollover protection system for a motor vehicle |
CN101847448A (en) * | 2010-04-30 | 2010-09-29 | 中兴通讯股份有限公司 | Automatic leveling device and method |
CN104842967A (en) * | 2014-04-16 | 2015-08-19 | 北汽福田汽车股份有限公司 | Anti-rollover device for vehicles, and vehicle |
Also Published As
Publication number | Publication date |
---|---|
NL1014496C1 (en) | 2000-03-30 |
EP1180089A1 (en) | 2002-02-20 |
AU7323400A (en) | 2001-09-03 |
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