EP0101845A2 - Mobile lifting or depositing device for transportable receptacles, for example cabins, containers, shelters or the like - Google Patents

Abstract

@ Certain transportable containers, e.g. cabins, containers, shelters or the like. must be able to be brought from relatively high positions and vice versa. For this purpose, a movable lifting or lowering device is used, which consists of individual rack and pinion winches 13 to be fastened to the container corners by means of arms 10, the toothed racks 17 of which are provided on supports 14 for the container 10. The supports carry the running wheels 15. In order to maintain sufficient stability of the lifting or lowering device even at relatively high positions of the container 10 to be manipulated, each rack and pinion winch 13 has a pivoting gear 18 with two vertically spaced working positions, the pivoting gear 18 in its lower working position folded down from a main prop guide 16 on the relevant boom 10 is to be connected to an additional prop guide 33 arranged under the main prop guide 16. The latter can be removed from the associated support 14 when the swivel gear 18 is in the upper working position. To pivot the gear 18 into one of the two working positions under load, a locking means 29 is provided between the main support guide 16 and the associated rack 17 or support 14.

Description

The invention relates to a movable lifting and lowering device for transportable containers, e.g. Cabins, containers, shelters or the like, with toothed rack winches to be fastened to the corners of the container by means of brackets, the toothed racks of which are provided on supports for the container, which carry the impellers which are used to deposit the container, e.g. on the floor or for lifting from there by the rack and pinion winches to the level of the container floor.

To manipulate such transportable containers, in particular for loading and unloading the same in or out of transport aircraft, either expensive crane trucks or loadable, relatively bulky special vehicles with lifting mechanisms have been used so far, which are likewise expensive and take up a lot of loading space.

The lifting and depositing devices of the type described at the outset, which are also suitable for the above purposes, take up less loading space, so that they can be left on the container after loading. However, these lifting and lowering devices have the Disadvantage that the winch gear including the support guides are mounted relatively high on the booms, so that when lifting a container into a relatively high position or when lifting it from such a high position (which can be determined, for example, by the loading area of a truck) relatively large length of the supports below the winches free, ie. is unguided, which leads to instability of the device or correspondingly large kink lengths in the supports. In such cases, the winch handles are difficult to operate due to their high position. On the other hand, with these known lifting and lowering devices, a lower arrangement of the rack winches including the support guides on the brackets is not possible because the running wheels mounted on the lower ends of the supports, for example for placing a container on the ground or for lifting from there onto the It must be possible to raise the level of the container floor, which requires a corresponding free space below the winches or support guides to accommodate the impellers.

The invention has for its object to avoid the above shortcomings and to develop a lifting or lowering device of the type mentioned in such a way that with space-saving design and maintenance of all of the above. Advantages whose supports are properly guided even at relatively high positions of the container to be manipulated. In such cases, manual operation of the rack and pinion jacks should also be made easier.

• a) jede Zahnstangenwinde ein Schwenkgetriebe mit zwei vertikal beabstandeten Arbeitsstellungen aufweist,
• b) das Schwenkgetriebe in seiner unteren, von einer Haupt- Stützenführung am betreffenden Ausleger abgeklappten Arbeitsstellung mit einer unter der Haupt- Stützenführung angeordneten Zusatz-Stützenführung zu verbinden ist, die bei in der oberen Arbeitsstellung befindlichem Schwenkgetriebe von der zugeordneten Stütze entfernbar ist und
• c) zum Schwenken des Getriebes in eine der beiden Arbeitsstellungen.unter Last zwischen der Haupt-Stützenführung und der zugeordneten Zahnstange oder Stütze ein Arretiermittel vorgesehen ist.

According to the invention, this object is achieved in that

• a) each rack and pinion winch has a swivel gear with two vertically spaced working positions,
• b) the swivel gear in its lower working position folded down from a main prop guide on the relevant boom is to be connected to an additional prop guide arranged under the main prop guide, which can be removed from the assigned prop when the pivot gear is in the upper working position and
• c) for pivoting the gear in one of the two working positions. A locking means is provided under load between the main support guide and the associated rack or support.

In their lower working positions, the swivel gears, in conjunction with the associated additional prop guides, stabilize the props in the area below the main prop guides and at the same time the winch gears can advantageously be gripped or actuated more conveniently. By means of the lifting or depositing device according to the invention, containers can therefore also be deposited or picked up from greater heights on, for example, loading areas of trucks. With swivel gears folded up and removed or retracted additional support guides, on the other hand, the supports can advantageously be raised so far that their impellers are flush with the bottom of the container, which is important if a load container is to be placed on the floor or a loading area, e.g. in a transport plane or to be lifted from there.

So that the pivoting of the gear of the lifting or lowering device into one of the two working positions under load is possible, it is necessary to provide a locking means between each main support guide and the associated rack or support. The latter can e.g. consist of a plug-in element with a toothing which engages in the toothing of the rack. The lifting or lowering device is also designed to save space (the swivel gears can be designed to be relatively flat), so that the device takes up little loading space and consequently also on e.g. can remain in a container loaded in a transport plane. At the destination, these containers can then be unloaded in the shortest possible time and e.g. be loaded onto trucks. When the latter is done, the brackets including the rack jacks and supports can be removed from the corners of the container and stowed away separately.

Further features of the invention emerge from the subclaims. The features of claims 2 or 3 have the advantage that when the swivel gear is folded down, the connected additional prop guide has a relatively large distance from the main prop guide.

The development of the invention according to claim 4 ensures reliable engagement of the respective drive pinion in the associated rack in each working position of the swivel gear.

From claim 5 there is the advantage that one only needs to pivot the additional support guide against the boom or in the direction of the container for the purpose of completely starting up a support with an impeller and creating the necessary receiving space for the impeller after the swivel gear has been folded up. In this disengaged, space-saving position, the additional support guide can be detachably locked with conventional means.

The features of claim 6 simplify the manufacture and release of the connection between the additional support guide and the swivel gear, the fork-shaped free end of the additional support guide, apart from the support, also advantageously accommodating the swivel gear partially fitting.

The developments of the invention according to claim 8 or 9 advantageously result in a lateral stiffening of the additional prop guide and the pivoted swivel gear and thus further improve the stability of the props below the main prop guide.

The development of the invention according to claim 10 has the advantage that with a relatively low main support guide 16, reliable support of the supports is achieved even when the wheels are raised.

The invention is subsequently explained on the basis of the drawings of exemplary embodiments.

• Figur 1 eine Seitenansicht eines Teils der erfindungsgemäßen Hub- bzw. Absetzvorrichtung mit einer an einer Behälterecke befestigten Zahnstangenwinde bei hochgeklapptem Schwenk- getriebe und voilständig hochgefahrener Stütze sowie auf dem Boden ruhenden Behälter, von dem nur ein Teil gezeigt ist;
• Figur 2 eine der Figur 1 ähnliche Seitenansicht, in der jedoch das Schwenkgetriebe in abgeklappter Arbeitsstellung, verbunden mit der Zusatz- Stützenführung gezeigt ist, und zwar bei angehobenem Behälter;
• Figur 3 einen Teil-Schnitt entlang der Linie A- A in Figur 2;
• Figur 4 einen weiteren Teilschnitt entlang der Linie B - B in Figur 2;
• Figur 5 eine der Figur 2 ähnliche Seitenansicht, in der die Zusatz-StUtzenfUhrung durch seitliche Abstützarme ausgesteift ist;
• Figur 6 eine Draufsicht der in Figu'r 5 gezeigten Anordnung;
• Figur 7 eine Draufsicht einer modifizierten Anordnung der Vorrichtung gemäß Figur 5 an einer Behälterecke und
• Figur 8 eine Draufsicht einer Behälterecke mit einer modifizierten seitlichen Aussteifung der Zusatzstützenführung.

Show it:

• FIG. 1 shows a side view of a part of the lifting and depositing device according to the invention with a rack and pinion winch attached to a corner of the container with the tilting gear folded up and the support fully raised, as well as a container resting on the floor, only part of which is shown;
• Figure 2 is a side view similar to Figure 1, but in which the swivel gear is shown in the folded working position, connected to the additional support guide, with the container raised;
• 3 shows a partial section along the line A-A in Figure 2;
• FIG. 4 shows a further partial section along the line BB in FIG. 2;
• Figure 5 is a side view similar to Figure 2, in which the additional support guide is stiffened by side support arms;
• FIG. 6 is a top view of the arrangement shown in FIG. 5;
• FIG. 7 shows a plan view of a modified arrangement of the device according to FIG. 5 on a container corner and
• Figure 8 is a plan view of a container corner with a modified lateral stiffening of the additional support guide.

The lifting or depositing device is intended for containers 12 with a rectangular plan, which e.g. of trucks must be loaded or unloaded via loading ramps in transport aircraft or vice versa. Around the containers e.g. In order to be able to move even in the cargo hold of the aircraft if there are no rollers on the floor of the cargo hold, the lifting or lowering devices generally have to be attached to the loading. remain, which requires a space-saving construction of the same and a raising of the impellers to the level of the container bottom (for the settling process).

For this purpose, the lifting or depositing device has four separate brackets 10 which can be detachably attached to the usual corner fittings 11 of the container 12 in a known manner. Each boom 10 carries a rack and pinion jack 13 by means of which a support 14 can be moved vertically relative to the container 12. At the lower end of each support 14, an impeller 15 is arranged rotatably about the longitudinal axis of the support 14. Since all four brackets 10, rack and pinion jacks 13 and supports 14 of a lifting or depositing device are of the same type, only the arrangement on a container corner is described with the aid of the figures.

On the outer vertical edge of the boom 10 there is a main prop guide 16 for which prop 14, for example consisting of a square tube, is provided. On the outward-facing side of the support 14, the rack 17 of the rack winch 13 is fastened. The rack winch 13 contains a swivel gear 18 which can be actuated by a hand crank 19 and has two vertically spaced working positions, of which the one is shown in Figure 1 and the other is shown in Figure 2. For this purpose, the swivel gear 18 is rotatably mounted about a releasable axis 20 in the direction of the arrow, which is fastened in projecting parts 21 of the main support guide 16 with a U-shaped cross section. In Figure 1, the swivel gear 18 is shown in its upper working position, in which it is fixed by a plug 22 to the main support guide 16. The swivel gear 18 is provided on its opposite narrow sides with a drive pinion 23 or 24, the drive pinion 23 being in engagement with the rack 17 in the upper working position of the swivel gear 18 shown in FIG. When all swivel gears 18 are in the upper working position (FIG. 1), it is possible, by appropriate actuation of the hand cranks 19, to drive up all four SUPPORTS 14 via the drive pinions 23 and racks 17 so far in the main support guides 16 that the wheels 15 from the free spaces 26 below the outrigger 10 are completely accommodated and their deepest part is aligned with the container base 25 in order to set the container 12 down, for example on a loading surface 27 of a transport aircraft, or to lift it off the latter. Two adjacent rack and pinion jacks 13 can be connected by a drive, so that only two hand cranks 19 can be turned.

If the container 12 is to be unloaded or unloaded, it is raised by corresponding actuation of the hand cranks 19 by means of the lifting or depositing device, the four supports 14 moving downward relative to the container 12 and carrying the latter. In the raised state, the container 12 can then get out of the fuselage of a transport aircraft, for example via a loading ramp be driven. It is noted at this point that all slewing gears 18 consist of a known design which is self-locking under load.

If, after this unloading process, the container 12 has to be raised further relative to the floor 28 (FIG. 2), for example for loading on a truck, all of the swivel gears 18 are brought into their lower working position shown in FIG. 2 beforehand under load. In order to make this possible, locking means 29 must be switched on between each main support guide 16 and the toothed racks 17 or supports 14 in order to temporarily fix the latter in the main support guides 16 before loosening the plug pins 22 and pivoting down the gear 18. When the positioning of the swivel gear 18 in its lower 'working positions has ended and the drive pinions 24 engage the associated toothed racks 17 instead of the drive pinions 23, the locking means 29 are removed again, so that the supports 14 continue by corresponding actuation of the hand cranks 19 of the rack winches 13 can be driven down to additionally raise the container 12 to the required level. Each locking means 29 (Fig. 2) consists of a rod with a toothing 30 which can be brought into engagement with the rack 17, namely that the locking means 29 laterally fitting through corresponding recesses 31 in the two cheeks of the main Support guide 16 passes through (Fig. 3). The housing of each swivel gear 18 is provided with a recess 32 which engages over the locking means 29 when the gear 18 is swiveled up into the working position shown in FIG.

In order on the one hand to securely fix the swivel gear 18 in its lower working positions and on the other hand the To stabilize relatively long sections of the supports 14 below the main support guides 16, an additional support guide 33 is provided, with which the swivel gear 18 in its lower working position by e.g. Plug pin 34 can be releasably connected. Each additional prop guide 33 has in particular an arm which is rotatably mounted by means of a bolt 35 at the lower end of the arm 10 and which contains a fork-shaped free end for receiving and guiding the relevant prop 14 and for appropriately receiving an edge section of the associated swivel gear 18 (FIG 4), In the exemplary embodiment, the swivel gear 18 is detachably connected to the two cheeks of the additional support guide 33 by means of two plug pins 34 (FIG. 2).

When the additional support guide 33 is in its working position shown in FIG. 2, the support 14 is reliably guided laterally and against the arm 10 by a rib 36 with a rounded edge 37. The support 14 is guided forwards by the swivel gear 18,

If the container 12 is to be set down from the raised position shown in FIG. 2, for example on the floor 28, the supports 14 are moved upwards by appropriate rotation of the hand cranks 19 in the main and additional support guides 16 and 33, respectively, until the lower ends of the supports 14 and the bearing parts of the wheels 15 approach the additional support guides 33. Then the locking means 29 in the Positioned above described between each rack 17 and main support guide 16. After loosening the plug pins 34, the swivel gear 18 can be folded into their upper working positions (FIG. 1) and firmly connected to the main support guides 16 or brackets 10 by the plug pins 22. At the same time, the additional support guides 33 are pivoted against the extension arms 10 or brought into the rest positions shown in FIG. 1, in which they can be fixed by locking means (not shown). The impellers 15 can then be inserted into the free spaces 26 below the boom 10 so that their lowermost parts are again aligned with the container bottom 25 according to FIG. The container 12 is thus deposited.

Alternatively, the additional support guide 33 A (Fig'1) .y:. also be rigid or articulated in the upper area on the Schyrenk gear 18. When pivoting down the gear 18, the support 14 is laterally encompassed and guided with a plug pin, not shown, in front of and parallel to the surface of the support 14 opposite the toothed rack 17, and detachably connected to the boom 10 by plug pins (not shown). With articulated fastening and pivoting of the additional prop guide 33 B beyond the vertical. the boom 10 and releasable fixation on the upper area of the boom 10, the additional support guide 33 B can also take over an "upper" guide of the support 14 and stabilization in addition to the main support guide 16 when the swivel gear 18 is positioned in the upper position (FIG. 1) Then this is. important if the main support guide 16 is relatively short and the impellers are raised.

A variant is shown in FIGS. 5 and 6, in which the additional support guide 33 is laterally stabilized in its working position by support arms 38, 39. The support arms 38, 39 are rotatably mounted on parts 40; which in turn on both sides of the access. Set support guide 33 are arranged rotatable about axes 41. The support arms 38, 39 are thereby "gimbaled" ..

In the exemplary embodiment in FIGS. 5 and 6, the twin impellers 15 are arranged at the lower end of each support 14 in front of the two end faces of the container 12. The arms 10 with the main support guide 16 and the additional support guides 33 can also be angled or bent inwards such that in the plan view the impellers 15 are positioned further inwards with reference to FIG. 6 (not shown), what in FIG In the case of predetermined rolling tracks in a cargo hold, for example of an airplane can be important.

In the embodiment according to FIGS. 5 and 6, the support arm 38 is screwed to the lower corner fitting 11 of the container 12, while the support arm 39 is supported with an adjustable pressure screw 43 on one end face of the container 12 close to its lower, fixed edge. The support arms 38, 39 are of the same type and carry the pressure screws 43 at bent ends 44.

In the embodiment in FIG. 7, the arrangement of the boom 10 is such that the twin impellers 15 are positioned laterally next to a side wall of the container 12. In this case, too, is one Support arm 38 is screwed to the lower corner fitting 11 of the container 12, while the other support arm 39 rests with its pressure screw 43 on the lower fixed edge of the side wall of the container 12.

In the embodiment according to FIG. 8, each corner of the container 12 is in the area of the lower corner fitting. 11 edged by an angular stabilizing part 45 which is fastened to the lower corner fitting 11 by means of screws 46. In this case, the additional prop guide 33 is connected to the stabilizing part 45 by struts 47. The struts 47 are rotatably connected at 48 or 49, 50 to the stabilizing part 45 or to the additional support guide 33.

Claims (10)

1. Movable lifting or depositing device for transportable containers, for example cabins, containers, shelters or the like, with rack winches to be fastened to the corners of the container by means of brackets, the toothed racks of which are provided on supports for the container, which carry the wheels which are used for The container can be set down, for example on the floor or raised from there by the rack and pinion jacks to the level of the container bottom, characterized in that a) each rack and pinion winch (13) has a swivel gear (18) with two vertically spaced working positions; b) the swivel gear (18) in its lower, folded from a main support guide (16) on the relevant boom (10) working position with an additional support guide (33) arranged under the main support guide (16), which is connected to pivoting gear (18) located in the upper working position can be removed from the associated support (14); c) a locking means (29) is provided for pivoting the transmission (18) into one of the two working positions under load between the main support guide (16) and the associated rack (17) or support (14). 2. Device according to claim 1, characterized in that the swivel gear (18) is mounted at the lower end of the main support guide (16) near its outer edge. 3. Apparatus according to claim 1 or 2, characterized in that the two working positions of the swivel gear (18) are spaced apart by an angle of 180 °. 4. Device according to claims 1-3, characterized in that the swivel gear (18) on opposite sides each has a drive pinion (23, 24) which, depending on the working position of the swivel gear (18), engages with the rack ( 17) of the assigned support (14). 5. The device according to claim 1, characterized in that the additional support guide (33) at the lower end of the associated boom (10) is pivotally mounted, which also carries the main support guide (16). 6. The device according to claim 5, characterized in that the additional support guide (33) has an arm with a fork-shaped free end in which the loading. striking support (14) and with which the swivel gear (18) can be guided through e.g. Plug pin (34) can be connected. 7. The device according to claim 1, characterized in that the additional support guide (33 A) attached to the swivel gear (18) and with the associated boom (10) is releasably connected, e.g. through plug pins. 8. Device according to claims 1, 5 and 6, characterized in that support arms (38, 39) are mounted laterally on each additional support guide (33) which, when the additional support guide (33) is in the working position, comes into contact with the container (12) stand or are connected to its corner fittings (11). 9. Device according to claims 1, 5 and 6, characterized in that each additional support guide (33) is connected in the working position by at least one strut (47) with an angular stabilizing part (45) comprising the container corner. 10. The device according to claim 1, characterized in that the additional support guide (33 B) at the upper end of the associated boom (10) is pivotally mounted to when the swivel gear (18) is folded up by connection to the boom (10) as a guide of the Support (14) and stabilization to serve in addition to the main support guide.

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