CA2244254A1 - Mobile crane - Google Patents
Mobile crane Download PDFInfo
- Publication number
- CA2244254A1 CA2244254A1 CA002244254A CA2244254A CA2244254A1 CA 2244254 A1 CA2244254 A1 CA 2244254A1 CA 002244254 A CA002244254 A CA 002244254A CA 2244254 A CA2244254 A CA 2244254A CA 2244254 A1 CA2244254 A1 CA 2244254A1
- Authority
- CA
- Canada
- Prior art keywords
- mobile crane
- jib
- turntable
- axis
- bogie
- 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.)
- Abandoned
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
- B66F9/065—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 non-masted
- B66F9/0655—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 non-masted with a telescopic boom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
Abstract
The invention relates to a mobile crane, in particular one intended for use in the transhipment of containers. The crane comprises a lower chassis (U) with at least two wheel axles (F1-F4) provided with steerable and separately drivable wheels (FR). A revolving platform (D) with its superstucture is mounted on the lower chassis (U) centrally between the wheel axles (F1-F4), the diameter of the platform being approximately equal to the vehicle width (b). The platform is provided with counterweights (G), an operator's cabin (K) and a telescopic jib (A) capable of pivoting on the platform about a horizontal tilting axis (W) under the action of a support cylinder (Z) also mounted on the platform (D) in such a way as to be mobile, and the support cylinder is coupled to the platform on a radial pointing to the tilting-axis (W). A manoeuvrable crane of this type can be used in a stacking area with the narrowest lane width and/or for rapid horizontal transport and can stack containers both laterally and frontally.
Description
CA 022442~4 1998-07-24 .
Mobile Crane Description:
The invention relates to a mobile crane and to its use ~or the stacking o~ containers.
Various vehicles are known ~or container stacking, which can transport containers horizontally and vertically, railborne or by road, in the manner o~ a mobile gantry crane, and, in particular, can also stack conventional 10-40 ~oot containers having loaded weights o~ a maximum o~ about 50 t.
In this case, ~or example in appliances which are known ~rom the German periodical "ETR" 11/1995, page 778-779, or ~rom DE-A-2248074, the container is suspended on a bridge-in a rope-operated load pickup device (spreader). The container can be set down on a stack within the bridge width o~ the gantry crane. Appliances o~ this type, i~ designed ~or roadgoing, may also have single wheel drive and all wheel steering with steering locks o~ up to 45 or 90~. The drive energy is generated by diesel units and is converted dieselhydraulically or dieselelectrically into speeds o~
90 m/min ~or horizontal travel and 40 m/min ~or trolley travel. These appliances are relatively slow and, because o~
the pendulous suspension o~ the load pickup means, require an accurate approach to the stacking location by means o~ two-axle travel o~ the appliance and o~ the trolley mechanism.
Relatively wide lanes are necessary, according to the appliance dimensions, ~or horizontal transport. Container stacking locations arranged in succession cannot be served when the bridge is smaller than the width o~ the containers standing next to one another, since the gantry crane then cannot pass over the container.
For the reasons mentioned, stacker vehicles, ~or example according to EP-A-0,080,002, are o~ten to be encountered at container stacking locations, said stacker vehicles having a stable two-axle traveling mechanism with dual twin tires and with a large axle base. A telescopic jib is arranged in the longitudinal center axis on these approx-imately 3-4 m wide and approximately 7-8 m long vehicles, said jib being mounted above the rear axle, about level with the driver's cab, in a lu~ing joint. By means o~ a supporting cylinder mounted on the vehicle chassis so as to be movable between the two axles or, optionally, level with the ~ront axle, the lu~ing axis can be brought into a more or less steep jib position. This stacker has, at the free end o~ the jib, either a rope-operated li~ting gear or a special load pickup and sling means designed ~or container transport.
By means o~ this vehicle, which has a driver's cab below or laterally o~ the jib, containers can be picked up, stacked and even held ~or horizontal travel in ~ront of the ~ront axle o~ the traveling mechanism. In the case o~ vehicles o~
CA 022442~4 1998-07-24 .
very long design, the container can also be held in the region above the front axle during horizontal travel in the steepest jib position, but in this case 20' or longer containers project laterally to a considerable extent beyond the vehicle width. The vehicles have a rear steerable axle, so that it is possible to swing in at a container location in stacking aisles. As a consequence o~ the type o~ design or because o~ the way in which the container is held, the lanes must have a width o~ 13 m or more i~ containers o~ the 40~
class are to be transported and/or stacked. The aisle must also have such wide dimensions because these stackers can destack only in ~ront o~ the ~ront axle and, consequently, always have to be positioned transversely to the container stacking location.
Special side-loading ~ork lift trucks (DE-A-2108323) have been constructed ~or the transportation o~ tubes and long timber at a stacking location available laterally o~ a driver's cab. These trucks have, in the transverse axis o~ the vehicle, a stacking fork ~or picking up or discharging the long product. In special ~orms o~
construction, it has also been proposed to arrange a turntable on the truck side located opposite the loading edge. A telescopic jib, with a lu~ing gear and a tractive pivoting cylinder ~or the jib, is arranged on this turntable.
Since the load is introduced laterally and there is no compensation of the load weight, these trucks can be operated, at the loading location, only with supporting feet extended, thus making the transfer correspondingly time consuming. The turning circle is relatively large as a consequence of the type of design.
Railroad slewing cranes, which are equipped with telescopic jibs and a luffing gear in a similar way to stackers, are known from railroad technology. Due to appro-priate counterweights, large loads can be lifted, even if the jib length is long, but only a stacking location next to tracks can be served in the case of rail travel. As a consequence of the small vehicle width, typical of railroads, the counterweights, as a rule, project well beyond the track when the live rings together with the jib are moved into the transverse position.
Moreover, DE-C2-2450003 also discloses mobile cranes or autocranes which, on roadgoing traveling mechanisms, have a turntable above the rear axle or between the axles (DE-C3-2544525, EP-A-0,611,725) in a longitudinal center axis of the vehicle, said turntable also being provided with counterweights for a telescopic jib with luffing gear and being provided with an operator's cab.
Optionally, in this case, a pivotable operator's cab can be used both for horizontal travel and for crane operation.
Autocranes of this type can be run at speeds of 60 km/h or more, but can be used ~or stacking at stationary locations only. As a consequence o~ the type o~ design, the horizontal transport of containers cannot be carried out with vehicles o~ this kind, since the stability o~ the vehicle does not allow this and, during horizontal travel, support on spreading ~eet, which is otherwise customary in the load position, is not possible. Due to the type o~ design, these mobile cranes have counterweights which have a long projecting length.
In addition to the problems mentioned, in the stackers provided especially ~or the stacking and transport-ation o~ containers there are ~undamental disadvantages which may make it di~icult and/or uneconomic to work with such vehicles:
Container transport can, in principle, be carried out only in ~ront o~ the vehicle head; lane width is relatively large, with the result that the ratio between the stacking location area and lane area becomes highly un~avorable. During horizontal transport travel, the vehicle has low stability, particularly when loaded containers having weights o~ up to 45 t are to be transported and/or stacked. During transport travel, there i8 very high tire stress on the front axle oi~
the vehicle, with the result that the transport load is limited and/or tire damage or damage to the roadway due to excessive speci~ic wheel loads cannot be avoided. During CA 022442~4 1998-07-24 transport travel, the driver o~ the stacker has a poor view.
The problem on which the invention is based is, there~ore, to propose a mobile crane ~or the stacking and horizontal transport o~ containers and similar loads, even on unpaved ground, in which the disadvantages o~ the appliances according to the prior art are avoided, but the advantages o~
the individual vehicle types are utilized, and in which maximum possible load dimensions can be dealt with by appliances having the smallest possible dimensions, along with the least possible marshalling outlay and high stability. The ratio o~ the stacking location to the neces-sary stacking aisle is to be made as high as possible ~or space-saving reasons.
The problem is solved, according to the invention, by means o~ claims 1 and 13. Developments o~ the invention are covered in the subclaims.
The solution is distinguished in that, starting ~rom a normal autocrane with a telescopic jib, said crane is modi~ied to the e~ect that the wheel axles are provided with steerable wheels, so that a very small turning circle is obtained, and a turntable is provided, which, together with superstructures, has at maximum the width of the vehicle, but at most the width o~ the vehicle including the wheels at ~ull steering lock, and the turntable is arranged centrally between the wheel axles, that is to say also at the center o~
CA 022442~4 1998-07-24 the bogie.
This solution makes it possible ~or the vehicle to have a maneuverability in all directions about longitudinal and transverse axes o~ the crane which is considerably above that o~ previously known stacking cranes and is comparable only to the maneuverability o~ gantry cranes ~or container trans~er. An essential purpose o~ the central arrangement o~
the turntable is ~or all static ~orces to be introduced centrically and, consequently, ~or the load to be distributed uniformly to all the wheel axles o~ the vehicle, whether two, ~our or six axles. This increase in the carrying load o~ the crane relieves the individual axles or reduces the tire stress in the case o~ maximum load pickup. This is supplemented by a transport posture ~or the containers to be transported which is, as ~ar as possible, always above the projected area o~ the bogie. In this case, the center o~
gravity o~ the container is held between the lateral wheels, approximately in the center o~ the transverse axis o~ the vehicle, so that the sum o~ the counterweights and o~ the load weights picked up also ensures as uni~orm a distribution to the individual wheels as possible. At the same time, this measure, in turn, considerably reduces the e~ective maximum turning circle and the necessary stacking aisle width.
A precondition ~or this is that the supporting cylinder is coupled to the turntable on a radial between the -center point o~ the turntable and the lu~ing axis position projected onto the turntable. As a result, a large amount o~
space is a~orded between the jib in its steepest jib position and the opposite edge o~ the bogie and the container can be held, during horizontal transport, in the clearance pro~ile thus obtained.
Ideally, each wheel axle or, ~or increased maneuverability or roadgoing requirements, each wheel is driven individually and can be adjusted individually in its pivoting direction, pre~erably with a steering angle o~ up to 45 degrees or even 90 degrees. The mobile crane is thus also moved in "crabwise motion" when a uni~orm lock o~ all the wheels o~ the mobile crane is set. Marshalling in extremely con~ined space is consequently possible.
The vehicle is pre~erably provided with an indepen-dent traveling drive ~or horizontal travel, ~or example a diesel unit, the axle drives and/or the individual wheel drives being implemented as sensitive hydraulic drives via corresponding converters and hydraulic pumps. At the same time, the drive energy may be utilized ~or the li~ting ~unctions o~ the appliance, ~or example the hydraulic cylinder o~ the telescopic jib and the supporting cylinder pre~erably designed as a hydraulic cylinder.
In addition, it is possible, o~ course, also to convert the drive energy o~ the independent traveling drive into electric CA 022442~4 1998-07-24 .
energy via a generator, in order thereby to provide the necessary energy ~or the drives and lighting or other sub~unctions, inso~ar as this is not possible via batteries.
These sub~unctions not only include the lighting and signal system, but also the possibility o~ driving the operator's cab in rotation on the turntable, which is likewise pivotable hydraulically, so that said cab can be pivoted ~rom a lateral transloading position into a ~orward-directed horizontal travel position and so as to allow the driver an appropriate view.
Moreover, ~or the stacking ~unction and to give the driver a better general view, there may be provision ~or moving the cab vertically on the turntable into a position which enables the driver to carry out optimum manipulation o~
the appliance. I~ necessary, i~ there is only a small amount o~ available space, the driver's seat may also merely be pivoted in the cab, as is known per se.
By means o~ the mobile crane accordlng to the invention, a series o~ advantages can be utilized during the stacking o~ containers, namely high stability, uni~orm wheel load and, as a result, a relatively ~avorably distributed ground pressure o~ the appliance. Moreover, the driver always has a satis~actory view o~ the route and the stacking location, horizontal transport can take place at a higher speed than in the case o~ conventional stackers, and a large CA 022442~4 1998-07-24 .
amount o~ time can be saved, due to an appropriate steering lock, ~or marshalling in relation to the container stacking locations or into the stacking aisle.
A major ~actor, however, is the high gain in area or the lower outlay ~or the stacking location, since the stacking aisles take up, in relation to the stacking loca-tions ~or the containers, a smaller amount o~ space than in the case o~ appliances according to the prior art. Further-more, the trans~er capacity o~ an appliance o~ this type is increased, because, o~ course, due to narrower aisles, the distances ~or horizontal transport are also shorter, and, moreover, marshalling time is saved and higher traveling speeds result in an increase in capacity. The truck has, in the case o~ ~our axles, a length/width ratio o~ about two.
The width is obtained ~rom the width o~ the containers to be transported, o~ which the long axis through the center o~
gravity is at a low sa~ety clearance o~ 10-30~, pre~erably at least 70~ o~ its width, above the bogie, and the overall width o~ the holding members, namely the jib and supporting cylinder or lu~ing gear.
In addition, there may be provision ~or improving the stability o~ the bogie by means o~ transverse and longi-tudinal stabilizers and also o~ ensuring that the tires are protected by the absence o~ any inclination o~ the bogie due to tire springing. Also, during container transport, inso~ar CA 022442~4 1998-07-24 .
as the container is set down at all, support on the bogie may be such that, here too, the load is transmitted uni~ormly to the bogie.
As is known ~rom other similar systems, the turn-table is arranged in the bogie so as to be pivotable through 360~ by means o~ a live ring or a ~riction wheel gear. The necessary hydraulic and electric control lines ~or the li~ting ~unctions and crane operation are led centrally through the live ring.
The driver's cab is arranged on the turntable itsel~, pre~erably next to the lu~ing region o~ the jib on the right, as seen in the direction o~ travel, speci~ically at the ~ront edge o~ the turntable, while the rear edge, as seen by the driver, remains reserved for placing the counterweights and the lu~ing axis o~ the jib as well as the supporting cylinder. Optimum space utilization is achieved by means o~ a multipart design o~ the counterweights. The counterweights may also be provided, at the same time, as lateral supporting pedestals ~or a lu~ing axis ~or the jib, said lu~ing axis being arranged about level with the roo~ o~
the driver's cab. This high position o~ the lu~ing joint makes it possible, when the jib lies horizontally, with the aid o~ the spreader to grasp a commercially available container which has its stacking location directly on the ground next to the mobile crane. On the other hand, the CA 022442~4 1998-07-24 .
position o~ the driver's cab at the "~ront" edge o~ the turntable is limited by the clearance pro~ile which is necessary for picking up a container ~rom the ground and which is limited inward in the direction o~ the vehicle axis by the lower edge o~ the container during the movement o~
picking up and pivoting the latter.
Furthermore, the vehicle may be equipped with sa~ety technology, pre~erably with electronic sensors, which takes into account both the limitation o~ tire stress and stability as a ~unction o~ the jib position, both its lu~ing position and its extension length. Further critical stability parameters, such as the inclination o~ the bogie in the longitudinal and transverse directions and the position of the driver's cab, may be included in the monitoring.
The telescopic jib is designed, in its retraction position, in such a way that a container can be satis-~actorily picked up directly laterally o~ the mobile crane, while its maximum extension position must be adapted to the maximum stacking height. The supporting cylinder may be arranged in such a way that, in the steepest jib position, it is arranged almost parallel to the jib, so that maximum clearance in the longitudinal direction above the bogie is obtained ~or container transport.
By means o~ an appliance o~ this type, containers having an overall size o~ ten ~eet to ~orty ~eet or more can CA 022442~4 1998-07-24 .
be readily transported and stacked, in the shortest possible trans~er time, even in stacking aisles which are only slightly wider than the mobile crane itsel~. Load weights o~
50 t are moved in horizontal travel, even on dirt roads, at up to about 600 m/min.
The invention will be explained, in principle, in more detail with re~erence to an exemplary embodiment, without the invention being restricted to the variant illustrated. In the diagrammatic drawing:
Figure 1 shows a side view o~ a mobile crane;
Figure 2 shows a ~ront view o~ a mobile crane;
Figures 3, 4 show a mobile crane in a bottom view projected onto a stacking location.
Parts having an identical or equivalent ~unction are given the same re~erence symbols below.
Figure 1 shows the mobile crane with ~our axles F 1 to F 4 which carry a bogie U. A turntable D, which has a pivoting range o~ 360~, is arranged centrically on the bogie U. The driver's cab K, with a degree o~ ~reedom o~ rotation KR and a degree o~ vertical ~reedom KV, and the counterweight G are arranged on the turntable. Between the two elements, the telescopic jib in the transverse axis QA, the supporting cylinder Z, the load pickup means L and the spreader S can be seen in this view. The spreader S holds a 40' container 1 or alternatively, as represented by broken lines, a smaller 20' CA 022442~4 1998-07-24 .
container 6 in the transport position in the longitudinal direction in relation to the bogie U.
Figure 2 shows a ~ront view o~ the mobile crane according to Figure 1 in its entire width b which corresponds approximately to hal~ the length l o~ the vehicle. The bogie is connected via the bolster D to the superstructures which are all arranged on the bolster or turntable D. The driver's cab K can be seen, here, in the loading position, just as in Figure 1. Arranged between the counterweights G is an axis W
as a lu~ing axis ~or the jib A which, here consisting o~ the telescopic parts A 1 and A 3, is marked by the associated extension positions S 1 and S 3 ~or the pivoting joint o~ the spreader S. At the head o~ the jib, the load pickup means L
is illustrated as a rotationally ~ixed connection to the load sling means, the spreader S, the load pickup means and the spreader being connected to one another by means o~ the pivoting joint or rotary joint S 3 or S 1.
The supporting cylinder Z is mounted on the turn-table at a point on a line o~ projection running between the center o~ the turntable, as illustrated by the longitudinal axis LA, and the lu~ing axis W arranged radially outside on the turntable. The bearing ZU o~ the cylinder is coupled to the turntable in a pivotally movable manner. The other end o~
the supporting cylinder is connected, in the rotary joint ZO, to the lower portion A 1 o~ the telescopic jib A. By retracting and extending the supporting cylinder Z, the axis point ZO can be pivoted through the lu~ing angle WW, illustrated as a line o~ movement o~ the center o~ rotation ZO, until the jib A is in a horizontal position, illustrated by the position o~ the pivot bearing S 4 o~ the spreader S, ~or picking up the container 4 from the ground next to the mobile crane. The other dot and dash lines SW 1, SW 3 and SW 5 identi~y the various pivot angles o~ the associated spreader pivot axes S 1, S 3, S 5. Depending on the extension position o~ the jib A and the lu~ing angle WW, the containers 1, 2, 3, 4 can thus be held in the various pickup positions and/or be moved outside the clearance pro~ile LP.
The position o~ the container 1 is the transport position ~or this container, as also illustrated in Figure 1. It can easily be seen ~rom this Figure 2 that it is very important ~or the lu~ing axis W and the sling point ZU (the jib A and cylinder Z being illustrated here in the steepest position) to be placed as ~ar as possible outside the center point or the longitudinal axis LA o~ the vehicle toward the edge o~
the vehicle, so that the container 1 comes into the transport position as ~ar as possible beyond the projected area o~ the bogie U.
Figure 3 shows only the bogie U o~ the mobile crane, together with the various traveling mechanism axles F1 to F4 (Figure 2), to which individually steerable wheels FR
are coupled. To make clear the vehicle dimensions and the transport movement, the 40' container 1 is also shown. The load is introduced into the bogie U, by way o~ the theoretical load introduction point as the intersection point between the transverse axis QA and the longitudinal axis LA, via the turntable D illustrated in Figure 1 and Figure 2. The bogie distributes the load uni~ormly to the axles F which, ~or this purpose, are provided, i~ appropriate, with suitable di~erential gears, links and/or converters FA known per se, so that the axle loads can be transmitted uniformly. I~
necessary, the axles F1 and F2 may also be assigned to a common bolster UD; in the same way, the axles F3 and F4 located at the rear in the direction o~ travel may likewise be coupled via a common bolster. The wheel position o~ each axle is to be controllable separately, and pre~erably each wheel can be capable o~ being set individually, as illustrated on the axles F1 and F4 in Figure 3. This highly maneuverable vehicle has an overall width o~ the bogie b, while the entire location width, with ~ull steering lock, assumes a dimension b2. This dimension b2 is slightly smaller than the width b4 o~ a lane on a bend, b4 representing the narrowest lane width ~or the bogie U, while b6 also includes the wheel position ~or the narrowest lane width.
Figure 4 illustrates an aisle PG o~ a stacking location P in a situation where a mobile crane is to travel CA 022442~4 1998-07-24 .
through this aisle diagonally. The steering lock o~ the wheels FR in relation to the axis o~ the vehicle F is illustrated, here, as below 45~. In this case, the vehicle requires a lane width b5 which corresponds to about double the width b; i~ a 40' container is included, this results in a necessary width o~ the stacking aisle b3 which is only slightly greater than the width which is taken up by the vehicle itself. It is evident ~rom Figure 3 that the turning radius o~ the vehicle corresponds to only about double its width b.
Mobile Crane Description:
The invention relates to a mobile crane and to its use ~or the stacking o~ containers.
Various vehicles are known ~or container stacking, which can transport containers horizontally and vertically, railborne or by road, in the manner o~ a mobile gantry crane, and, in particular, can also stack conventional 10-40 ~oot containers having loaded weights o~ a maximum o~ about 50 t.
In this case, ~or example in appliances which are known ~rom the German periodical "ETR" 11/1995, page 778-779, or ~rom DE-A-2248074, the container is suspended on a bridge-in a rope-operated load pickup device (spreader). The container can be set down on a stack within the bridge width o~ the gantry crane. Appliances o~ this type, i~ designed ~or roadgoing, may also have single wheel drive and all wheel steering with steering locks o~ up to 45 or 90~. The drive energy is generated by diesel units and is converted dieselhydraulically or dieselelectrically into speeds o~
90 m/min ~or horizontal travel and 40 m/min ~or trolley travel. These appliances are relatively slow and, because o~
the pendulous suspension o~ the load pickup means, require an accurate approach to the stacking location by means o~ two-axle travel o~ the appliance and o~ the trolley mechanism.
Relatively wide lanes are necessary, according to the appliance dimensions, ~or horizontal transport. Container stacking locations arranged in succession cannot be served when the bridge is smaller than the width o~ the containers standing next to one another, since the gantry crane then cannot pass over the container.
For the reasons mentioned, stacker vehicles, ~or example according to EP-A-0,080,002, are o~ten to be encountered at container stacking locations, said stacker vehicles having a stable two-axle traveling mechanism with dual twin tires and with a large axle base. A telescopic jib is arranged in the longitudinal center axis on these approx-imately 3-4 m wide and approximately 7-8 m long vehicles, said jib being mounted above the rear axle, about level with the driver's cab, in a lu~ing joint. By means o~ a supporting cylinder mounted on the vehicle chassis so as to be movable between the two axles or, optionally, level with the ~ront axle, the lu~ing axis can be brought into a more or less steep jib position. This stacker has, at the free end o~ the jib, either a rope-operated li~ting gear or a special load pickup and sling means designed ~or container transport.
By means o~ this vehicle, which has a driver's cab below or laterally o~ the jib, containers can be picked up, stacked and even held ~or horizontal travel in ~ront of the ~ront axle o~ the traveling mechanism. In the case o~ vehicles o~
CA 022442~4 1998-07-24 .
very long design, the container can also be held in the region above the front axle during horizontal travel in the steepest jib position, but in this case 20' or longer containers project laterally to a considerable extent beyond the vehicle width. The vehicles have a rear steerable axle, so that it is possible to swing in at a container location in stacking aisles. As a consequence o~ the type o~ design or because o~ the way in which the container is held, the lanes must have a width o~ 13 m or more i~ containers o~ the 40~
class are to be transported and/or stacked. The aisle must also have such wide dimensions because these stackers can destack only in ~ront o~ the ~ront axle and, consequently, always have to be positioned transversely to the container stacking location.
Special side-loading ~ork lift trucks (DE-A-2108323) have been constructed ~or the transportation o~ tubes and long timber at a stacking location available laterally o~ a driver's cab. These trucks have, in the transverse axis o~ the vehicle, a stacking fork ~or picking up or discharging the long product. In special ~orms o~
construction, it has also been proposed to arrange a turntable on the truck side located opposite the loading edge. A telescopic jib, with a lu~ing gear and a tractive pivoting cylinder ~or the jib, is arranged on this turntable.
Since the load is introduced laterally and there is no compensation of the load weight, these trucks can be operated, at the loading location, only with supporting feet extended, thus making the transfer correspondingly time consuming. The turning circle is relatively large as a consequence of the type of design.
Railroad slewing cranes, which are equipped with telescopic jibs and a luffing gear in a similar way to stackers, are known from railroad technology. Due to appro-priate counterweights, large loads can be lifted, even if the jib length is long, but only a stacking location next to tracks can be served in the case of rail travel. As a consequence of the small vehicle width, typical of railroads, the counterweights, as a rule, project well beyond the track when the live rings together with the jib are moved into the transverse position.
Moreover, DE-C2-2450003 also discloses mobile cranes or autocranes which, on roadgoing traveling mechanisms, have a turntable above the rear axle or between the axles (DE-C3-2544525, EP-A-0,611,725) in a longitudinal center axis of the vehicle, said turntable also being provided with counterweights for a telescopic jib with luffing gear and being provided with an operator's cab.
Optionally, in this case, a pivotable operator's cab can be used both for horizontal travel and for crane operation.
Autocranes of this type can be run at speeds of 60 km/h or more, but can be used ~or stacking at stationary locations only. As a consequence o~ the type o~ design, the horizontal transport of containers cannot be carried out with vehicles o~ this kind, since the stability o~ the vehicle does not allow this and, during horizontal travel, support on spreading ~eet, which is otherwise customary in the load position, is not possible. Due to the type o~ design, these mobile cranes have counterweights which have a long projecting length.
In addition to the problems mentioned, in the stackers provided especially ~or the stacking and transport-ation o~ containers there are ~undamental disadvantages which may make it di~icult and/or uneconomic to work with such vehicles:
Container transport can, in principle, be carried out only in ~ront o~ the vehicle head; lane width is relatively large, with the result that the ratio between the stacking location area and lane area becomes highly un~avorable. During horizontal transport travel, the vehicle has low stability, particularly when loaded containers having weights o~ up to 45 t are to be transported and/or stacked. During transport travel, there i8 very high tire stress on the front axle oi~
the vehicle, with the result that the transport load is limited and/or tire damage or damage to the roadway due to excessive speci~ic wheel loads cannot be avoided. During CA 022442~4 1998-07-24 transport travel, the driver o~ the stacker has a poor view.
The problem on which the invention is based is, there~ore, to propose a mobile crane ~or the stacking and horizontal transport o~ containers and similar loads, even on unpaved ground, in which the disadvantages o~ the appliances according to the prior art are avoided, but the advantages o~
the individual vehicle types are utilized, and in which maximum possible load dimensions can be dealt with by appliances having the smallest possible dimensions, along with the least possible marshalling outlay and high stability. The ratio o~ the stacking location to the neces-sary stacking aisle is to be made as high as possible ~or space-saving reasons.
The problem is solved, according to the invention, by means o~ claims 1 and 13. Developments o~ the invention are covered in the subclaims.
The solution is distinguished in that, starting ~rom a normal autocrane with a telescopic jib, said crane is modi~ied to the e~ect that the wheel axles are provided with steerable wheels, so that a very small turning circle is obtained, and a turntable is provided, which, together with superstructures, has at maximum the width of the vehicle, but at most the width o~ the vehicle including the wheels at ~ull steering lock, and the turntable is arranged centrally between the wheel axles, that is to say also at the center o~
CA 022442~4 1998-07-24 the bogie.
This solution makes it possible ~or the vehicle to have a maneuverability in all directions about longitudinal and transverse axes o~ the crane which is considerably above that o~ previously known stacking cranes and is comparable only to the maneuverability o~ gantry cranes ~or container trans~er. An essential purpose o~ the central arrangement o~
the turntable is ~or all static ~orces to be introduced centrically and, consequently, ~or the load to be distributed uniformly to all the wheel axles o~ the vehicle, whether two, ~our or six axles. This increase in the carrying load o~ the crane relieves the individual axles or reduces the tire stress in the case o~ maximum load pickup. This is supplemented by a transport posture ~or the containers to be transported which is, as ~ar as possible, always above the projected area o~ the bogie. In this case, the center o~
gravity o~ the container is held between the lateral wheels, approximately in the center o~ the transverse axis o~ the vehicle, so that the sum o~ the counterweights and o~ the load weights picked up also ensures as uni~orm a distribution to the individual wheels as possible. At the same time, this measure, in turn, considerably reduces the e~ective maximum turning circle and the necessary stacking aisle width.
A precondition ~or this is that the supporting cylinder is coupled to the turntable on a radial between the -center point o~ the turntable and the lu~ing axis position projected onto the turntable. As a result, a large amount o~
space is a~orded between the jib in its steepest jib position and the opposite edge o~ the bogie and the container can be held, during horizontal transport, in the clearance pro~ile thus obtained.
Ideally, each wheel axle or, ~or increased maneuverability or roadgoing requirements, each wheel is driven individually and can be adjusted individually in its pivoting direction, pre~erably with a steering angle o~ up to 45 degrees or even 90 degrees. The mobile crane is thus also moved in "crabwise motion" when a uni~orm lock o~ all the wheels o~ the mobile crane is set. Marshalling in extremely con~ined space is consequently possible.
The vehicle is pre~erably provided with an indepen-dent traveling drive ~or horizontal travel, ~or example a diesel unit, the axle drives and/or the individual wheel drives being implemented as sensitive hydraulic drives via corresponding converters and hydraulic pumps. At the same time, the drive energy may be utilized ~or the li~ting ~unctions o~ the appliance, ~or example the hydraulic cylinder o~ the telescopic jib and the supporting cylinder pre~erably designed as a hydraulic cylinder.
In addition, it is possible, o~ course, also to convert the drive energy o~ the independent traveling drive into electric CA 022442~4 1998-07-24 .
energy via a generator, in order thereby to provide the necessary energy ~or the drives and lighting or other sub~unctions, inso~ar as this is not possible via batteries.
These sub~unctions not only include the lighting and signal system, but also the possibility o~ driving the operator's cab in rotation on the turntable, which is likewise pivotable hydraulically, so that said cab can be pivoted ~rom a lateral transloading position into a ~orward-directed horizontal travel position and so as to allow the driver an appropriate view.
Moreover, ~or the stacking ~unction and to give the driver a better general view, there may be provision ~or moving the cab vertically on the turntable into a position which enables the driver to carry out optimum manipulation o~
the appliance. I~ necessary, i~ there is only a small amount o~ available space, the driver's seat may also merely be pivoted in the cab, as is known per se.
By means o~ the mobile crane accordlng to the invention, a series o~ advantages can be utilized during the stacking o~ containers, namely high stability, uni~orm wheel load and, as a result, a relatively ~avorably distributed ground pressure o~ the appliance. Moreover, the driver always has a satis~actory view o~ the route and the stacking location, horizontal transport can take place at a higher speed than in the case o~ conventional stackers, and a large CA 022442~4 1998-07-24 .
amount o~ time can be saved, due to an appropriate steering lock, ~or marshalling in relation to the container stacking locations or into the stacking aisle.
A major ~actor, however, is the high gain in area or the lower outlay ~or the stacking location, since the stacking aisles take up, in relation to the stacking loca-tions ~or the containers, a smaller amount o~ space than in the case o~ appliances according to the prior art. Further-more, the trans~er capacity o~ an appliance o~ this type is increased, because, o~ course, due to narrower aisles, the distances ~or horizontal transport are also shorter, and, moreover, marshalling time is saved and higher traveling speeds result in an increase in capacity. The truck has, in the case o~ ~our axles, a length/width ratio o~ about two.
The width is obtained ~rom the width o~ the containers to be transported, o~ which the long axis through the center o~
gravity is at a low sa~ety clearance o~ 10-30~, pre~erably at least 70~ o~ its width, above the bogie, and the overall width o~ the holding members, namely the jib and supporting cylinder or lu~ing gear.
In addition, there may be provision ~or improving the stability o~ the bogie by means o~ transverse and longi-tudinal stabilizers and also o~ ensuring that the tires are protected by the absence o~ any inclination o~ the bogie due to tire springing. Also, during container transport, inso~ar CA 022442~4 1998-07-24 .
as the container is set down at all, support on the bogie may be such that, here too, the load is transmitted uni~ormly to the bogie.
As is known ~rom other similar systems, the turn-table is arranged in the bogie so as to be pivotable through 360~ by means o~ a live ring or a ~riction wheel gear. The necessary hydraulic and electric control lines ~or the li~ting ~unctions and crane operation are led centrally through the live ring.
The driver's cab is arranged on the turntable itsel~, pre~erably next to the lu~ing region o~ the jib on the right, as seen in the direction o~ travel, speci~ically at the ~ront edge o~ the turntable, while the rear edge, as seen by the driver, remains reserved for placing the counterweights and the lu~ing axis o~ the jib as well as the supporting cylinder. Optimum space utilization is achieved by means o~ a multipart design o~ the counterweights. The counterweights may also be provided, at the same time, as lateral supporting pedestals ~or a lu~ing axis ~or the jib, said lu~ing axis being arranged about level with the roo~ o~
the driver's cab. This high position o~ the lu~ing joint makes it possible, when the jib lies horizontally, with the aid o~ the spreader to grasp a commercially available container which has its stacking location directly on the ground next to the mobile crane. On the other hand, the CA 022442~4 1998-07-24 .
position o~ the driver's cab at the "~ront" edge o~ the turntable is limited by the clearance pro~ile which is necessary for picking up a container ~rom the ground and which is limited inward in the direction o~ the vehicle axis by the lower edge o~ the container during the movement o~
picking up and pivoting the latter.
Furthermore, the vehicle may be equipped with sa~ety technology, pre~erably with electronic sensors, which takes into account both the limitation o~ tire stress and stability as a ~unction o~ the jib position, both its lu~ing position and its extension length. Further critical stability parameters, such as the inclination o~ the bogie in the longitudinal and transverse directions and the position of the driver's cab, may be included in the monitoring.
The telescopic jib is designed, in its retraction position, in such a way that a container can be satis-~actorily picked up directly laterally o~ the mobile crane, while its maximum extension position must be adapted to the maximum stacking height. The supporting cylinder may be arranged in such a way that, in the steepest jib position, it is arranged almost parallel to the jib, so that maximum clearance in the longitudinal direction above the bogie is obtained ~or container transport.
By means o~ an appliance o~ this type, containers having an overall size o~ ten ~eet to ~orty ~eet or more can CA 022442~4 1998-07-24 .
be readily transported and stacked, in the shortest possible trans~er time, even in stacking aisles which are only slightly wider than the mobile crane itsel~. Load weights o~
50 t are moved in horizontal travel, even on dirt roads, at up to about 600 m/min.
The invention will be explained, in principle, in more detail with re~erence to an exemplary embodiment, without the invention being restricted to the variant illustrated. In the diagrammatic drawing:
Figure 1 shows a side view o~ a mobile crane;
Figure 2 shows a ~ront view o~ a mobile crane;
Figures 3, 4 show a mobile crane in a bottom view projected onto a stacking location.
Parts having an identical or equivalent ~unction are given the same re~erence symbols below.
Figure 1 shows the mobile crane with ~our axles F 1 to F 4 which carry a bogie U. A turntable D, which has a pivoting range o~ 360~, is arranged centrically on the bogie U. The driver's cab K, with a degree o~ ~reedom o~ rotation KR and a degree o~ vertical ~reedom KV, and the counterweight G are arranged on the turntable. Between the two elements, the telescopic jib in the transverse axis QA, the supporting cylinder Z, the load pickup means L and the spreader S can be seen in this view. The spreader S holds a 40' container 1 or alternatively, as represented by broken lines, a smaller 20' CA 022442~4 1998-07-24 .
container 6 in the transport position in the longitudinal direction in relation to the bogie U.
Figure 2 shows a ~ront view o~ the mobile crane according to Figure 1 in its entire width b which corresponds approximately to hal~ the length l o~ the vehicle. The bogie is connected via the bolster D to the superstructures which are all arranged on the bolster or turntable D. The driver's cab K can be seen, here, in the loading position, just as in Figure 1. Arranged between the counterweights G is an axis W
as a lu~ing axis ~or the jib A which, here consisting o~ the telescopic parts A 1 and A 3, is marked by the associated extension positions S 1 and S 3 ~or the pivoting joint o~ the spreader S. At the head o~ the jib, the load pickup means L
is illustrated as a rotationally ~ixed connection to the load sling means, the spreader S, the load pickup means and the spreader being connected to one another by means o~ the pivoting joint or rotary joint S 3 or S 1.
The supporting cylinder Z is mounted on the turn-table at a point on a line o~ projection running between the center o~ the turntable, as illustrated by the longitudinal axis LA, and the lu~ing axis W arranged radially outside on the turntable. The bearing ZU o~ the cylinder is coupled to the turntable in a pivotally movable manner. The other end o~
the supporting cylinder is connected, in the rotary joint ZO, to the lower portion A 1 o~ the telescopic jib A. By retracting and extending the supporting cylinder Z, the axis point ZO can be pivoted through the lu~ing angle WW, illustrated as a line o~ movement o~ the center o~ rotation ZO, until the jib A is in a horizontal position, illustrated by the position o~ the pivot bearing S 4 o~ the spreader S, ~or picking up the container 4 from the ground next to the mobile crane. The other dot and dash lines SW 1, SW 3 and SW 5 identi~y the various pivot angles o~ the associated spreader pivot axes S 1, S 3, S 5. Depending on the extension position o~ the jib A and the lu~ing angle WW, the containers 1, 2, 3, 4 can thus be held in the various pickup positions and/or be moved outside the clearance pro~ile LP.
The position o~ the container 1 is the transport position ~or this container, as also illustrated in Figure 1. It can easily be seen ~rom this Figure 2 that it is very important ~or the lu~ing axis W and the sling point ZU (the jib A and cylinder Z being illustrated here in the steepest position) to be placed as ~ar as possible outside the center point or the longitudinal axis LA o~ the vehicle toward the edge o~
the vehicle, so that the container 1 comes into the transport position as ~ar as possible beyond the projected area o~ the bogie U.
Figure 3 shows only the bogie U o~ the mobile crane, together with the various traveling mechanism axles F1 to F4 (Figure 2), to which individually steerable wheels FR
are coupled. To make clear the vehicle dimensions and the transport movement, the 40' container 1 is also shown. The load is introduced into the bogie U, by way o~ the theoretical load introduction point as the intersection point between the transverse axis QA and the longitudinal axis LA, via the turntable D illustrated in Figure 1 and Figure 2. The bogie distributes the load uni~ormly to the axles F which, ~or this purpose, are provided, i~ appropriate, with suitable di~erential gears, links and/or converters FA known per se, so that the axle loads can be transmitted uniformly. I~
necessary, the axles F1 and F2 may also be assigned to a common bolster UD; in the same way, the axles F3 and F4 located at the rear in the direction o~ travel may likewise be coupled via a common bolster. The wheel position o~ each axle is to be controllable separately, and pre~erably each wheel can be capable o~ being set individually, as illustrated on the axles F1 and F4 in Figure 3. This highly maneuverable vehicle has an overall width o~ the bogie b, while the entire location width, with ~ull steering lock, assumes a dimension b2. This dimension b2 is slightly smaller than the width b4 o~ a lane on a bend, b4 representing the narrowest lane width ~or the bogie U, while b6 also includes the wheel position ~or the narrowest lane width.
Figure 4 illustrates an aisle PG o~ a stacking location P in a situation where a mobile crane is to travel CA 022442~4 1998-07-24 .
through this aisle diagonally. The steering lock o~ the wheels FR in relation to the axis o~ the vehicle F is illustrated, here, as below 45~. In this case, the vehicle requires a lane width b5 which corresponds to about double the width b; i~ a 40' container is included, this results in a necessary width o~ the stacking aisle b3 which is only slightly greater than the width which is taken up by the vehicle itself. It is evident ~rom Figure 3 that the turning radius o~ the vehicle corresponds to only about double its width b.
Claims (17)
1. A mobile crane for the stacking and horizontal transport of containers, comprising - a bogie (U) with at least two wheel axles (F1-F4) which are provided with steerable and, on at least two axles, individually drivable wheels (FR), - a turntable (D) mounted rotationally on the bogie in the longitudinal center axis (LA) and transverse axis (QA) and centrally between the wheel axles, counterweights (G), an operator's cab (K) and a telescopic jib (A) are arranged on the turntable, - the jib is pivotable on the turntable, about a horizontal luffing axis (W), by means of a supporting cylinder (Z) likewise mounted movably on the turntable, and - the supporting cylinder is coupled to the turntable on a radial (r) pointing toward the luffing axis, - the turntable, together with superstructures, having, at maximum, a width corresponding to the maximum width of the vehicle.
2. The mobile crane as claimed in claim 1, wherein each wheel axle and/or each wheel (FR) can be driven separately.
3. The mobile crane as claimed in claim 1 or 2, wherein the wheels can be pivoted through up to 90°
individually or by axle.
individually or by axle.
4. The mobile crane as claimed in one of claims 1 to 3, defined by an independent traveling drive for horizontal travel, said traveling drive at the same time supplying the energy for the drives of the wheels and/or other drive functions.
5. The mobile crane as claimed in one of claims 1 to 4, wherein, in the steepest luffing position of the jib, the axis (ZU-ZO) of the supporting cylinder is arranged almost parallel to the axis of the jib.
6. The mobile crane as claimed in one of claims 1 to 5, wherein the luffing axis (W) is arranged approximately above the counterweights.
7. The mobile crane as claimed in one of claims 1 to 6, wherein a load pickup means (S) is slung on the free end of the jib in a pivotably movable manner, the pivot axis (S1-S5) of said load pickup means being located within the radius (r) of the turntable, at least in the steepest luffing position.
8. The mobile crane as claimed in one of claims 1 to 7, wherein the operator's cab serves, at the same time, as a driver's cab for the horizontal travel of the crane.
9. The mobile crane as claimed in one of claims 1 to 8, wherein the operator's cab is mounted rotationally on the turntable.
10. The mobile crane as claimed in one of claims 1 to 9, wherein the operator's cab is mounted so as to be movable in the vertical direction.
11. The mobile crane as claimed in one of claims 1 to 10, defined by electronic sensors for monitoring one or more safety parameters, selected from the group comprising the longitudinal inclination of the bogie, the transverse inclination of the bogie, the wheel load, the tire stress, the jib position and the position of the operator's cab.
12. The mobile crane as claimed in one of claims 1 to 11, defined by its minimum width (b) which is determined by 0.7 times the width of the container (1-6) to be transported, plus the overall width of the jib (A) and of the supporting cylinder (Z).
13. Use of a mobile crane which has, on a bogie (U) with at least two driven wheel axles (F1-F4), a centrally mounted turntable (D) with a degree of freedom of rotation of 360° and a telescopic and luffable jib (A) arranged on the turntable, the turntable having a diameter of, at maximum, about the vehicle width (b), for the horizontal transport of containers (1-6), while, during travel, the jib is in the steepest luffing position, with the shortest possible telescopic position and with the jib position exactly in the longitudinal axis (LA) or in the transverse axis (QA) of the mobile crane, and the container is held by the jib on a pivotably movable spreader (S), the pivot axis (S1-S5) of which is located above the bogie.
14. Use of a mobile crane as claimed in claim 13 for the stacking of containers at stacking locations (P), the stacking aisles (PG) of which are narrower than double the width (b) of the mobile crane.
15. Use as claimed in claim 13 or 14, wherein, during horizontal travel, the container is set down on supporting brackets on the bogie.
16. A mobile crane, comprising individual or all the new features or a combination of disclosed features.
17. Use of a mobile crane for individual or a plurality of new purposes, insofar as disclosed here.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19603966.5 | 1996-01-26 | ||
| DE19603966A DE19603966A1 (en) | 1996-01-26 | 1996-01-26 | Mobile crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2244254A1 true CA2244254A1 (en) | 1997-07-31 |
Family
ID=7784469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002244254A Abandoned CA2244254A1 (en) | 1996-01-26 | 1997-01-22 | Mobile crane |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0876292B1 (en) |
| AU (1) | AU1594297A (en) |
| CA (1) | CA2244254A1 (en) |
| DE (2) | DE19603966A1 (en) |
| WO (1) | WO1997027138A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI980400A (en) | 1998-02-23 | 1999-08-24 | Meclift Ltd Oy | moving machine |
| NO994064L (en) * | 1999-08-23 | 2001-02-26 | Arild Bolsoe | Cargo handling device |
| DE10147777B4 (en) * | 2001-09-27 | 2005-06-23 | Rheinmetall Landsysteme Gmbh | Device for increasing the stability of mobile crane systems |
| DE102015108725A1 (en) | 2015-06-02 | 2016-12-08 | Terex Cranes Germany Gmbh | Swivel bearing arrangement with a pivot pin and at least one bearing block and a mounting method for this |
| SE543484C2 (en) * | 2018-03-06 | 2021-03-02 | Cargotec Patenter Ab | Cargo handling vehicle for navigation in narrow aisles and method therefore |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3270899A (en) * | 1964-04-17 | 1966-09-06 | Baldwin Lima Hamilton Corp | Load handling vehicle |
| US3685673A (en) * | 1970-05-28 | 1972-08-22 | Crutcher Resources | Side-loading self-propelled material transporting device |
| DE2248074A1 (en) * | 1972-09-30 | 1974-04-04 | Gisbert Plugge | HEAVY DUTY VEHICLE |
| GB1518798A (en) * | 1974-10-05 | 1978-07-26 | Coles Cranes Ltd | Rough terrain cranes (swingable cb) |
| DE2450003C2 (en) * | 1974-10-22 | 1984-05-10 | Fa. Johannes Fuchs, 7257 Ditzingen | Mobile crane with cabin with different positions |
| DE3174352D1 (en) * | 1981-11-23 | 1986-05-15 | O R M I G S P A | Mobile yard crane for the handling of containers |
| IL75141A0 (en) * | 1985-05-09 | 1985-09-29 | Eyal Engineering & Ind Co Ltd | Tow truck |
| DE9001589U1 (en) * | 1990-02-12 | 1990-06-13 | Liebherr-Werk Ehingen Gmbh, 7930 Ehingen, De | |
| DE9114464U1 (en) * | 1991-11-21 | 1993-03-25 | Krupp Industrietechnik Gmbh, 4100 Duisburg, De | |
| DE9302376U1 (en) * | 1993-02-18 | 1993-06-24 | Ec Engineering + Consulting Spezialmaschinen Gmbh, 7900 Ulm, De |
-
1996
- 1996-01-26 DE DE19603966A patent/DE19603966A1/en not_active Withdrawn
-
1997
- 1997-01-22 DE DE59701841T patent/DE59701841D1/en not_active Expired - Fee Related
- 1997-01-22 AU AU15942/97A patent/AU1594297A/en not_active Abandoned
- 1997-01-22 EP EP97902203A patent/EP0876292B1/en not_active Expired - Lifetime
- 1997-01-22 CA CA002244254A patent/CA2244254A1/en not_active Abandoned
- 1997-01-22 WO PCT/EP1997/000292 patent/WO1997027138A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| EP0876292B1 (en) | 2000-06-07 |
| AU1594297A (en) | 1997-08-20 |
| DE19603966A1 (en) | 1997-07-31 |
| WO1997027138A1 (en) | 1997-07-31 |
| DE59701841D1 (en) | 2000-07-13 |
| EP0876292A1 (en) | 1998-11-11 |
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Legal Events
| Date | Code | Title | Description |
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| FZDE | Dead |