EP0104471B1 - Pallet for pressurized gas bottles - Google Patents

Abstract

1. Transportation pallet for pressurized gas cylinders, having a rectangular bottom frame (11) and bottom angles (12) arranged above on supports (15, 16), in said bottom angles (12) a bottom plate (14) designed as pressure-welded grate being inserted, having at the corners vertical spars (21.1, 21.2) being connected at their upper ends and approximately at half their height on three sides by horizontal struts (22, 24), the upper horizontal struts (22) being provided on two opposite sides with load lugs (28) and with load distribution struts (27) arranged slopingly towards the bottom, whereas the forth side is intended as loading side, and being displaceable with a loading shutter (31) extending approximately to half its height and being swingable by an axle (33) arranged at its lower end and forming axle journals on both sides, and with a safety girder (41) arranged approximately at the height of the upper ends of the vertical spars (21.1), said safety girder (41) being swingable by a guide rod (44) of a pivot/sliding bearing (42), said guide rod (44) being provided at an adjacent, lateral, upper horizontal strut (22) and extending in parallel to it, and said safety girder (41) being lockable along said guide rod (44), whereby the opened-up loading shutter (31) and the swung-down safety girder (41), the latter particularly having a pendulum-type catch-hook (45), are locked releasably, and whereby the safety girder (41) further comprises means for locking in swung-up position, characterized by the following features : a) the axle journals (33) projecting at the lower loading shutter edge and being borne in sleeves (32) engage one each into an oblong hole (37) provided in the vertical spars (21.1) adjacent to the loading shutter (31) and extending in direction of the vertical spars (21.1) ; b) near the upper edge of the loading shutter (31), approximately rectangular recesses (35) are provided, cooperating with U-shaped projections (36) at said vertical spars (21.1) ; c) the safety means for locking the safety girder (41) in opened-up condition is an oblong hole (43) in the safety girder (41), said oblong hole embracing the guide rod (44) of the pivot/sliding bearing (42) and having its longitudinal axis in direction of the safety girder (41), whereby, with erected safety girder (41), its outer edge is supported on the inner side of the vertical leg of the lateral, upper horizontal strut (22) provided with the guide rod (44), and whereby the distance of the axis of the oblong hole (43) to the outer edge of the safety girder (41) is only insignificantly smaller than the distance of the axis of the guide rod (44) to the inner side of the vertical leg.

Description

The invention is in the field of transport means and relates to a compressed gas cylinder transport pallet with a right-angled base frame and on supports at a distance above it, in which a base plate designed in particular as a pressure welding grate is inserted, with angular ones at their upper ends and at approximately half height vertical bars connected on three sides by horizontal struts, the upper horizontal struts being provided on two opposite sides with load eyes and with downward, obliquely extending load distribution struts, while the fourth side is designed as a loading side which reaches up to approximately half its height , around an axis provided on its lower edge, axles forming stub axles, and a flap arranged at the height of the upper ends of the vertical spars, around a provided on an adjacent, lateral upper horizontal strut and parallel to it the guide rod of a rotary-slide bearing can be pivoted and slidable along this guide rod, the opened cross-hatch and the pivoted-down safety crossbar, the latter in particular with a pendulum-mounted drop hook, are detachably locked, and the crossbar also has means for locking in a pivoted-up position .

Pressurized gas cylinder transport pallets must be tailored to the special conditions that require handling of pressurized gas cylinders. Safety in handling the loaded pallet is essential, and it makes no difference whether the pallet is fully loaded, partially loaded or even loaded with compressed gas cylinders of different contents - and thus different heights. The compressed gas cylinders housed in the pallet must not fall over; there must be no danger of compressed gas cylinders falling out of the pallet, and finally the pallet must be so stable that it can safely carry the considerable mass of the compressed gas cylinders. For this reason, such pallets are welded together from metal profiles. In the rough handling of such pallets, which are exposed to the weather for a long time even in an industrial environment, long-term corrosion protection is necessary to maintain their stability. The use of galvanized steel profiles has proven itself here. These pallets are loaded via a loading side, which contains a hinged loading flap and which has a hinged safety crossbar at the upper end. Such a pallet is described, for example, in US Pat. No. 4,295,431.

A further developed type of a compressed gas cylinder transport pallet can be found in the Gebhardt pallet program catalog edition R (1981) from Ludwig Gebhardt GmbH & Co Betriebs-KG, D-8490 Cham. The recognizable compressed gas cylinder transport pallet consists of a floor assembly with a floor frame and floor brackets at a distance above it, into which a floor plate is inserted. Above them rise vertical spars connected by horizontal struts at their upper ends and at about half the height on three sides; load eyelets are provided on two opposing upper horizontal struts. To transfer the force from the upper lateral horizontal struts, load distribution struts are directed obliquely downwards and outwards to the vertical bars. The loading flap, which closes the fourth side as the loading side, forms a drive-on ramp in the folded state and can be locked in the opened state. The safety crossbar can be swung open and is releasably locked in the swiveled down position; Means for locking the safety crossbeam in a gifted position are also provided.

The invention is based on the object of developing such a compressed gas cylinder transport pallet in such a way that it is to be made operational and transport-safe in a simple manner, and it should also be easy to operate and economically producible, taking into account the rough operation.

This object is achieved according to the invention once by the following features: a) The stub axles projecting at the lower edge of the tailgate engage in sleeves that extend into the vertical spar adjacent to the tailgate and extend in the direction of the vertical spars; b) approximately rectangular recesses are provided near the upper edge of the loading flap, which interact with U-shaped approaches on these vertical bars; c) the securing means for locking the safety crossmember in the opened position is an elongated hole in the safety crossmember comprising the guide rod of the rotary / sliding bearing, with the longitudinal axis running in the direction of the safety crossmember, the outer edge of the safety crossmember being provided against the inside of the vertical leg of the one provided with the guide rod , lateral, upper horizontal strut is supported and the distance of the axis of the elongated hole from the outer edge of the safety crossmember is only slightly smaller than the distance of the axis of the guide rod from the inside of the vertical leg.

On the other hand, the solution is given by the following features: a) The axle tunnels projecting at the lower edge of the tailgate and mounted in sleeves engage in one of the vertical bars provided in the vertical bars adjacent to the tailgate oblong slot on; b) approximately rectangular recesses are provided near the upper edge of the loading flap, which interact with U-shaped approaches on these vertical bars; c) the securing means for locking the safety crossbar in the opened position is a locking pawl which can be freely pivoted about an axis and has a protrusion at right angles to it, with the locking part of the locking pawl being supported against the top of the horizontal leg of the lateral, upper horizontal strut provided with the guide rod when the safety crossbar is erected is, the length of the locking part of the locking pawl corresponds to the distance from the upper side of this horizontal leg and the locking pawl has a recess in the region of the guide rod which enables it to be placed on the guide rod.

This design creates a compressed gas cylinder transport pallet in which storage of the loading flap, which when folded down serves as a loading platform and can be walked on, under certain circumstances must also be passable, by engaging the stub axles in elongated holes. The stub axles thus remain free to move in the vertical direction and the folded-down loading flap can also rest on the uneven floor without any constraining forces leading to deformation of the axle and / or axle bearing. Slits, pockets and other slot-like structures are known from DE-OS 24 60 846. However, these serve to form a collapsible lattice box pallet in which the problem of a foldable loading flap that can be used as a loading ramp does not arise. In the case of the "elongated hole solution", the safety crossmember is secured by placing the top of the opened safety crossmember on the inside of the vertical leg of the lateral, upper horizontal strut, which also limits the swivel angle to a little over 90 °. In the "pawl solution", the underside of the securing pawl attached to the sliding bearing lies against the upper side of the horizontal leg of the upper lateral horizontal strut, while here, too, the pivoting movement is limited by the vertical leg of this strut. In both cases, the guide rod of the sliding bearing remains force-free, closing the safety crossbeam without releasing the lock does not lead to deformation of the guide rod and / or sliding bearing. In order to release the lock, the entire safety crossmember has to be lifted in the "elongated hole solution", in the "latch solution" the lock is released by lifting the protruding part of the safety catch. Both are also possible with heavy work gloves, as is usually the case when handling compressed gas cylinder transport pallets.

A further development is given in that the safety catch is designed as a plastic part and is preferably colored red-orange. By designing the locking pawl as a plastic part, a locking member is created which can be deformed or even broken if overused. This prevents overstressing when the locked safety crossbar is improperly closed. The coloring has a signal character; it makes it easier to recognize the locking pawl and thus serves for easier handling.

In another development, the drop hook is provided with a deflection limiter, a locking pin being movable in an elongated hole to limit the deflection, the drop hook preferably being provided with the locking pin and a side wall of the safety cross member having the elongated hole permitting the movement of the locking pin. This deflection limitation prevents the drop hook from "overturning" and thus inevitably ensures that the safety crossbar is properly locked even when it is slammed at high speed.

A further development is given in that the floor angle in the area of the loading flap is designed as a counter-bearing bracket provided with an outer flange for supporting the folded-down loading flap. This measure ensures that the hinged flap leaf of the loading side itself is not deformed in the event of an overload which has not yet deformed the thrust bearing angle. The smooth operation of the loading flap is ensured. The degree of lowering of the loading flap is arbitrary, since depending on the lowering, only the stub axles in the elongated holes are raised, the contact edge of the counter bearing angle being the axis of rotation.

In addition, it is proposed that the load distribution struts proceeding from the upper horizontal struts and running obliquely downward run at an angle of approximately 45 ° to the vertical spars and are non-positively connected to the load eyes arranged centrally on the upper horizontal struts. The non-positive connection of the load eyelets with the load distribution struts ensures a favorable introduction of force when the pallet is struck in a two-hook load harness and a favorable load distribution; in addition, these struts also serve to stabilize the upper part of the pallet.

As an alternative to this, it is proposed that each of the two lateral of the upper horizontal struts is provided with two load eyes each close to the end of the struts, the one load eye of each horizontal strut in the region of the vertical spar assigned to the strut end and the other are arranged offset by at least one load eye width towards the center of the horizontal strut, and the load eyes provided in the area of the vertical bars of the two horizontal struts are arranged diagonally opposite one another. This arrangement of the load eyelets ensures that when picking up the pallet with a four-hook load, even pallets placed close to each other can be safely struck or pallets can be placed close to each other by means of such load harnesses, since the load eyelets offset against each other also in the adjacent pallets Allow the hooks to be hooked in or out.

It is also proposed that the central horizontal struts connecting the vertical bars at about half the height on three sides are designed as angle profiles which are preferably directed outwards with their apex. With these middle profiles, even smaller bottles with a lower height can be set securely, the angle profiles introducing the necessary rigidity and the outer wall of the bottles being advantageously supported against the two inward profile edges.

Finally, it is proposed that the bottom plate inserted into the bottom bracket, in particular in the form of a pressure welding grate, be spot welded to the bottom angles, the welding points being the underside of the bottom plate, preferably the undersides of some webs of the lattice structure of the pressing welding grate and the inner edges of the horizontal legs of the bottom bracket connect. This connection, which is to be addressed as a tack in terms of welding technology, ensures that the base plate is securely inserted, with simple interchangeability, for which purpose only the punctiform welding points have to be separated.

• Fig. 1 eine - vereinfachte - perspektivische Darstellung der Flaschenpalette,
• Fig. 2 eine Seitenansicht der Flaschenpalette,
• Fig. 3 Einzelheit, Anlenkung der Ladeklappe; Frontansicht,
• Fig. 4 Einzelheit, Anlenkung der Ladeklappe; Seitansicht (Schnitt IV-IV) in Fig. 3,
• Fig. 5 Einzelheit, Anlenkung und Aufhängung der Ladeklappe perspektivisch und geschnitten,
• Fig. 6 aufklappbarer Sicherungsholm; Frontansicht,
• Fig. 7 aufklappbarer Sicherungsholm; Aufsicht,
• Fig. 8 aufklappbarer Sicherungsholm; Seitansicht (Schnitt VIII-VIII) in Fig. 7,
• Fig. 9 Einzelheit Anlenkung aufklappbarer Sicherungsholm mit Sicherungsklinke,
• Fig. 10 Einzelheit Anlenkung aufklappbarer Sicherungsholm mit Sicherungsklinke; Aufsicht.
• Fig. 11 eine Aufsicht auf die Flaschenpalette;
• Fig. 12 perspektivische Aufsicht auf Palettenoberteil mit versetzten Lastoesen,
• Fig. 13 Fallhaken mit Sicherungsstift in Seitenansicht und Aufsicht.

The invention is illustrated by way of example with reference to the following FIGS. 1 to 10; show:

• 1 is a - simplified - perspective view of the bottle range,
• 2 is a side view of the bottle pallet,
• Fig. 3 detail, articulation of the loading flap; Front view,
• Fig. 4 detail, articulation of the loading flap; Side view (section IV-IV) in Fig. 3,
• 5 detail, articulation and suspension of the loading flap in perspective and in section,
• Fig. 6 hinged safety bar; Front view,
• Fig. 7 hinged safety bar; At sight,
• Fig. 8 hinged safety bar; Side view (section VIII-VIII) in Fig. 7,
• 9 detail linkage hinged safety bar with safety catch,
• Fig. 10 detail articulation hinged safety bar with safety catch; At sight.
• 11 is a top view of the bottle pallet;
• 12 perspective top view of the upper part of the pallet with offset load eyes,
• Fig. 13 drop hook with locking pin in side view and top view.

Figure 1 shows the bottle range, which is constructed on the rectangular base frame 11 from a substantially flat profile. At a distance above the legs of the floor frame and running parallel to them, there are the floor brackets 12 on three sides; the fourth side, the loading side is provided with a counter-bearing bracket 13 with an outer bend 13.1. In the bottom bracket, the bottom plate, indicated schematically, is inserted as a grate 14 and spot welded to the inside edge of the horizontal leg of the bottom bracket 12 and the counter bearing bracket 13. The floor brackets 12 and the counter bearing bracket 13 are fastened to the vertical bars 21, the front vertical bars being designated by 21.1 and the rear vertical bars being designated by 21.2, corner corner plates 15 standing at a corner and the center supports 16 being spaced apart being provided for support. The center supports 16, which maintain the distance, are expediently designed as tube sections in order to be able to reject the prongs of the fork from the stackers receiving the pallets. The vertical bars 21 have horizontal struts 22 at their upper end corresponding to the floor angles as upper side bars. The corresponding link to the counter bearing bracket 13 is the hinged safety bar 41, which can be pivoted about the shaft 44 and is secured with the drop hook 45 in the closed position. Approximately halfway up, three middle side rails corresponding to the floor angles 12 are welded in, which are preferably formed from an isosceles angle profile with an apex directed outwards. Load transmission struts 27 are fastened to the two side bars 24 arranged at right angles to the loading side, near the vertical bars 21.1 and 21.2, which are inclined at approximately 45 ° relative to the vertical bars to the corresponding upper side bars 22 and are welded to them there. On both sides there are lifting eyes that allow a two-hook load to be attached. The free legs of the load eyes are shaped so that they are aligned in the direction of the load transmission struts, with which they can be welded in the area of the upper side rails. The front, the loading side of the pallet is closed with the loading flap 31, which is suspended in approximately U-shaped bearings 36 fastened to the inner sides of the front vertical bars 21.1. The inner leg 36.1 of the approximately U-shaped bearing is increased so far that pivoting of the loading flap 31 beyond the vertical position is prevented. The loading side is closed in the area of the upper end of the pallet by the fold-out spar 41, which - as already shown - around the shaft 44 can be opened and secured in the closed state with the drop hook 45. FIG. 2 shows a side view of the bottle pallet, the opening area of the loading flap 31 in particular being made recognizable. In the uncut illustration, the extension of the shaft 44 serving as a guide rod can also be seen, along which the securing bar 41 (FIG. 1) can be displaced, in the event that the bottle pallet is only partially loaded.

Figures 3 and 4 show the details of the articulation of the loading flap 31, Figure 5 shows the interaction of the individual parts thereof. The loading flap 31 is provided on its lower edge with short axle receiving sleeves 32 in relation to the flap width, into which stub axles 33 are inserted, so that the stub axles 33 extend through the elongated holes 37 in the vertical strut 21.1 into the interior of this vertical strut and in the sleeves 32 through after Insertion of the stub axle 33 was carried out at least one-sided pressing 32.1 are fixed. The long axis of the elongated hole 37 is oriented in the direction of the vertical spar 21.1. The exact positioning of the elongated hole 37 is irrelevant: If it is set too low, the stub axles are free on both sides, since the flap leaf of the loading flap rests on the thrust bearing bracket 13. It is only important that the length of the long axis of the elongated holes 37 is selected so that the loading flap 31 can preferably be raised so high with the aid of the handle holes 34 that the upper edge of the lateral recesses 35 in the loading flap 31 over the upper edge of the front leg of the approximately U-shaped receptacle 36 can be guided away. 5, this raised position of the loading flap is shown in dashed lines. The rear leg 36.1 of the U-shaped receptacle 36 is expediently pulled up so that the loading flap cannot pivot through. FIGS. 6, 7 and 8 show a representation of the hinged securing bar 41. The hinged securing bar, the pivoting range of which is shown in FIG. 6 by the arrow describing an approximately 90 ° circular sector, is mounted around the guide rod 44 which is mounted in the upper side bar 22 is pivotable. The guide rod 44 is guided through openings in the prongs of the fork-shaped sliding bearing 42. These openings are expediently designed as elongated holes 43, the longitudinal axis of the elongated holes being mounted in the direction of the spar 41. This makes the spar movable in the direction of the slot axis. Due to the formation of the edge curves of the sliding bearing 42, corresponding to an eccentric arrangement of the elongated holes which is offset upwards at right angles to the longitudinal axis of the securing bar 41, the securing bar 41 raised into the vertical position "falls" into a "secured" position according to the indicated arrows: It cannot fall back without being raised. In order to keep the safety bar secured even in the closed state, the drop hook 45 is provided, which can be easily rotated about the drop hook bolt 45.1. When the safety bar 41 is folded back, the safety bar is first raised, which removes the blocking effect of the blocking means. It is then folded into the horizontal position, the inclined surface of the drop hook 45 running onto the horizontal leg of the other upper side spar and as a result of which the drop hook 45 is deflected in the direction of the arrow. When lowering further, the groove of the drop hook 45 comes into the area of the horizontal leg of the upper spar 22: the drop hook falls into the vertical position due to the turning moment generated by the deflection, and the groove surrounds a part of the horizontal leg. Raising the safety bar 41 is only possible after this drop hook has been released.

In order to achieve the exact position of the securing bar at different degrees of filling, bores 25.1 and recesses 25.2 are provided in the horizontal legs of the angle profiles of the upper side bars 22, the securing bar having a spacer bolt 46 interacting with the holes 25.1 and on its sliding bearing side with one in the Recesses 25.2 engaging detent 42.1 is provided. By appropriate arrangement of the spacer holes 25.1 and the recesses 25.2, it is possible to determine the position of the securing bar for different rows of compressed gas cylinders from the start, also taking into account different cylinder diameters.

FIGS. 9 and 10 show another embodiment of the means for securing the vertical position of the securing bar: the sliding bearing 42 is attached to the securing bar 41, the forks of which are aligned here with the side walls of the securing bar. The guide rod 44 is designed as a tube and is enclosed by the guide hole in the sliding bearing 42 with little play. A locking pawl 47 is arranged on a bolt 48, the bolt 48 being fixedly connected to the sliding bearing 42 and taking part in its movement. When the safety bar 41 is raised, the safety catch 47 falls with its lower part 47.1 into a vertical position, the cavity lies against the push rod, and the lower surface is supported against the horizontal leg of the angular upper side bar 22 provided with the sliding bearing. When the safety bar 41 is folded back, the safety catch thus securely blocks the backward movement. This position is indicated by dashed lines in FIG. 9. To release the protruding part 47.2 of the locking pawl is raised, whereby the lock is released. Since the lock can only snap into place when the safety bar 41 is fully erected, no further holding is required during lowering. The protruding part 47.2 of the safety catch can be set up in such a way that it can be operated even with rough work gloves. In order to ensure the freedom of movement of the locking pawl 47, it is expedient to provide spacer sleeves 48 on both sides of the locking pawl on the spacer bolt, so that the distance between the locking pawl 47 and the legs of the fork-shaped sliding bearing 42 is always ensured.

Finally, FIG. 11 shows a top view of the bottle pallet with the upper side bars 22 and the safety bar 41 that can be swiveled in the direction of the arrow. The visible base plate is shown as a grating 14. For better clarification, the center supports 16 formed from pipe sections are shown in a recognizable manner. Essential for the securing function of the hinged securing bar 41, which is provided at one end with the sliding bearing 42 and can be displaced along the guide rod 44, is securing it in the possible pressurized gas cylinder arrangements, taking into account the positions predetermined by their diameter. For this purpose, spaced hole openings 25.1 and corresponding recesses 25.2 are provided in the two upper horizontal bars 22 on the side. The safety bar 41 carries at its free end the spacer bolt 46 which engages in one of the selected distance holes 25.1 when the safety bar 41 is lowered. When the safety bar 41 is lowered, the sliding bearing 42 also rotates about the guide rod 44 and the detent 42.1 engages in the recess in the recesses 25.2, which corresponds to the selected spacing hole. As a result, in the closed state, the securing bar 41 is secured against displacement on both sides and thus also the compressed gas cylinders set in the bottle range. As stated above, if, in addition to large compressed gas cylinders and small compressed gas cylinders, which are no longer covered by the safety bar, an additional belt can be tensioned around the cylinders from the belt clips 29 (FIG. 2). 12 shows a perspective top view of the upper part of a pallet with the upper horizontal cross bars 22 and the closed securing bar 41, the upper horizontal cross bars 22 being carried by the front vertical bars 21.1 and the rear vertical bars 21.2. A further second palette, which is located directly next to this palette, is indicated by dashed lines. The two lateral ones of the upper horizontal spars 22 are each provided with two load eyes 28, one of the two load eyes each being arranged close to the vertical spar 21.1 or 21.2 and the other being offset inwards by a load eye width. The two load eyes arranged near the vertical spar 21.1 and 21.2 are arranged diagonally opposite one another. This ensures that the load eyes of an adjacent pallet are not covered by the load eyes of the pallet and can therefore be easily picked up by the crane harness. Finally, FIG. 13 shows a detail of the securing hook 45, which is provided with a deflection limitation. The deflection limitation is effected by a pin 45.2 provided in the securing hook, which can be moved in an elongated hole 41.1 of the securing bar 41. By means of this locking pin 45.2, the fall hook, which is itself freely rotatable about the fall hook bolt 45.1, is limited in its deflection in such a way that it can neither roll over nor get into an unwanted blocking position.

Claims (9)

1. Transportation pallet for pressurized gas cylinders, having a rectangular bottom frame (11) and bottom angles (12) arranged above on supports (15.16), in said bottom angles (12) a bottom plate (14) designed as pressure-welded grate being inserted, having at the corners vertical spars (21.1, 21.2) being connected at their upper ends and approximately at half their height on three sides by horizontal struts (22, 24), the upper horizontal struts (22) being provided on two opposite sides with load lugs (28) and with load distribution struts (27) arranged slopingly towards the bottom, whereas the forth side is intended as loading side, and being displaceable with a loading shutter (31) extending approximately to half its height and being swingable by an axle (33) arranged at its lower end and forming axle journals on both sides, and with a safety girder (41) arranged approximately at the height of the upper ends of the vertical spars (21.1), said safety girder (41) being swingable by a guide rod (44) of a pivot/ sliding bearing (42), said guide rod (44) being provided at an adjacent, lateral, upper horizontal strut (22) and extending in parallel to it, and said safety girder (41) being lockable along said guide rod (44), whereby the opened-up loading shutter (31) and the swung-down safety girder (41), the latter particularly having a pendulum-type catch-hook (45), are locked releasably, and whereby the safety girder (41) further comprises means for locking in swung-up position, characterized by the following features: a) the axle journals (33) projecting at the lower loading shutter edge and being borne in sleeves (32) engage one each into an oblong hole (37) provided in the vertical spars (21.1) adjacent to the loading shutter (31) and extending in direction of the vertical spars (21.1); b) near the upper edge of the loading shutter (31), approximately rectangular recesses (35) are provided, cooperating with U-shaped projections (36) at said vertical spars (21.1); c) the safety means for locking the safety girder (41) in opened-up condition is an oblong hole (43) in the safety girder (41), said oblong hole embracing the guide rod (44) of the pivot/sliding bearing (42) and having its longitudinal axis in direction of the safety girder (41), whereby, with erected safety girder (41), its outer edge is supported on the inner side of the vertical leg of the lateral, upper horizontal strut (22) provided with the guide rod (44), and whereby the distance of the axis of the oblong hole (43) to the outer edge of the safety girder (41) is only insignificantly smaller than the distance of the axis of the guide rod (44) to the inner side of the vertical leg.

2. Transportation pallet for pressurized gas cylinders, having a rectangular bottom frame (11) and bottom angles (12) arranged above on supports (15,16), in said bottom angles (12) a bottom plate (14) designed as pressure-welded grate being inserted, having at the corners vertical spars (21.1. 21.2) being connected at their upper ends and approximately at half their height on three sides by horizontal struts (22, 24), the upper horizontal struts (22) being provided on two opposite sides with load lugs (28) and with load distribution struts (27) arranged slopingly towards the bottom, whereas the forth side is intended as loading side, and being displaceable with a loading shutter (31) extending approximately to half its height and being swingable by an axle (33) arranged at its lower end and forming axle journals on both sides, and with a safety girder (41) arranged approximately at the height of the upper ends of the vertical spars (21.1), said safety girder (41) being swingable by a guide rod (44) of a pivot/ sliding bearing (42), said guide rod (44) being provided at an adjacent, lateral, upper horizontal strut (22) and extending in parallel to it, and said safety girder (41) being lockable along said guide rod (44), whereby the opened-up loading shutter (31) and the swung-down safety girder (41), the latter particularly having a pendulum-type catch-hook (45), are locked releasably, and whereby the safety girder (41) further comprises means for locking in swung-up position, characterized by the following features: a) the axle journals (33) projecting at the lower loading shutter edge and being borne in sleeves (32) engage one each into an oblong hole (37) provided in the vertical spars (21.1) adjacent to the loading shutter (31) and extending in direction of the vertical spars (21.1); b) near the upper edge of the loading shutter (31), approximately rectangular recesses (35) are provided, cooperating with U-shaped projections (36) at said vertical spars (21.1); c) the safety means for locking the safety girder (41) in opened-up condition is a safety catch (47) freely rotatable by an axis (48) with a projection (47.2) arranged vertically to it, whereby, with erected safety girder (41), the locking part (47.1) of the safety catch is supported on the upper side of the horizontal leg of the lateral, upper horizontal strut (22) provided with the guide rod (44), whereby the length of the locking part (47.1) of the safety catch (47) corresponds to the distance to the upper side of said horizontal leg, and whereby the safety catch (47) exhibits a recess in the area of the guide rod (44), said recess allowing for a joining to the guide rod.

3. Transportation pallet for pressurized gas cylinders according to claim 2, characterized by that the safety catch (47) is designed as plastic part and is preferably coloured red-orange.

4. Transportation pallet for pressurized gas cylinders according to one of claims 1, 2 or 3, characterized by that the catch-hook (45) is provided with a swing-out limitation, whereby for limitation of swinging-out, a locking pin (45.2) is movable in an oblong hole (41.1), whereby, preferably, the catch-hook (45) is provided with the locking pin (45.2), and a side wall of the safety girder (41) exhibits the oblong hole (41.1) allowing for the movement of the locking pin (45.2).

5. Transportation pallet for pressurized gas cylinders according to one of the preceding claims 1 to 4, characterized by that the bottom angle in the area of the loading shutter (31) is formed as support angle (13) provided with an outer bent-up portion (13.1) for support of the swung-out loading shutter (31).

6. Transportation pallet for pressurized gas cylinders according to one of claims 1 to 5, characterized by that the load distribution struts (27) beginning at the upper horizontal struts (22) and extending slopingly towards the bottom are arranged approximately under an angle of 45° to the vertical spars (21.1,21.2) and are frictionally connected to the load lugs (28) arranged centrally on the respective upper horizontal struts (22).

7. Transportation pallet for pressurized gas cylinders according to one of claims 1 to 5, characterized by that each of the two lateral, upper horizontal struts (22) is provided with two load lugs (28), each near to the end of the strut, whereby one of the load lugs (28) of each horizontal strut (22) is arranged in the area of the vertical spar (21.1, 21.2) assigned to the end of the strut, and the other towards the centre of the horizontal strut (22) by at least one load lug width, and whereby the load lugs (28) of both horizontal struts, said lugs being arranged in the area of the vertical spars (21.1, 21.2), are arranged diagonally opposite to each other.

8. Transportation pallet for pressurized gas cylinders according to one of the preceding claims, characterized by that the central horizontal struts (24) connecting in approximately half their height on three sides the vertical spars (21.1, 21.2) are designed preferably as angle sections with their angular points directed outward.

9. Transportation pallet for pressurized gas cylinders according to one of the preceding claims, characterized by that the bottom plate inserted into the bottom angles (12), particularly being designed as pressure-welded grate (14), is spot-welded to the bottom angles (12), the welding positions connecting the underside of the bottom plate, preferably the undersides of several crosspieces of the grate network of the pressure-welded grate (14) and the inner edges of the horizontal legs of the bottom angles (12) to each other.

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