DE2229417A1 - DEVICE FOR TENSIONING AND ADJUSTING BANDAGES ON CONTAINERS AND TANKS MADE OF FLEXIBLE MATERIAL, SUCH AS PLASTIC TANKS FOR HEATING OIL - Google Patents

Description

Device for tensioning and adjusting bandages on containers and tanks made of flexible material such as plastic tanks for heating oil The present invention relates to a device for tensioning and readjusting of bandages on containers and tanks made of flexible material, such as plastic tanks for heating oil, whereby the bandages consist of side and head parts, which in their End areas are connected to each other.

For the transport and storage of liquid and dusty media Transport containers and tanks of different troughs and made of different materials known.

In the past, steel and light metal containers were mainly used. After the official approval, there has recently been more and more of the Such tanks, for example for the storage of heating oil, made of elastic materials, in particular made of plastic, such as polyethylene, etc. Here, te However, the plastic tanks increase in size - due to the internal pressure conditional - pear or. expand like a teardrop, which is particularly a battery assembly such plastic tanks made difficult. About the creeping property of the plastic tank on.

To catch, the tanks were provided with so-called bandages.

There are already continuous U-shaped bandages known, in particular horizontally lying tanks are assigned and attached during assembly.

These bandages, which are composed of individual pieces and made of tubular and hot-rolled U-profiles are made of relatively low leg heights are in different Versions have been proposed, depending on whether a separate statement or battery version was planned.

In this type of bandage, however, there was the disadvantage that the Dealer or from the company installing the tank or tanks, the battery size for the respective size suitable bandage types had to be available.

Furthermore, these tanks were firmly with the common bandages pulled against their bodies was undesirable for a variety of reasons is.

For this reason, one has now switched to every tank to be bandaged individually and then put together to form a battery arrangement.

The fact that, for example, the dimensioning of the heating tank in Houses is given by the transport option in the basement and these as a result, with a capacity of approx. 500 - 2000 1, it is relatively narrow must be, result in the longitudinally arranged bandages in the Middle high loads, which inevitably lead to a profile reinforcement.

Another important problem with these tanks is the filling and emptying systems which, with a few exceptions, are effective from above. However, a structurally fixed center distance between the tanks must be maintained be, ucl additional stresses on the suction and discharge devices to avoid.

Another factor is the tough plastic behavior of plastic ddr production of the tanks a shrinkage, on the other hand with pressure load in filled one State an expansion. The bandages must therefore be designed so that on the one hand they allow a certain expansion of the tank, but over a certain extent Grip the tank tightly and fix it.

In the so-called single bandaging, it is known to have two bandage parts to send, each extending over a long side of the tank, each the Grip half of the head side of the tank and connect it with screws will. It was possible to prevent certain shrinkage phenomena by readjusting the screws to avoid the tank. However, in order to pull the bandage and thus press it in To prevent the shell of the tank, intermediate tabs were used for a certain Clearance that blocked the screw barge.

Furthermore, bandages are known which consist of a square tube and with welded-on, curved additional profiles encompass the tank at the head and are also connected to each other by screws. Farther bandages are known which consist of U-shaped rolled material profiles.

As the size of the tank increases, so do the bending moments on the long sides increase, one has proposed bandage profiles that have different dimensions in the area of the head sides or in the beginning area of the laterally extending ones Have side profiles. In the side area of the bandages in the area of the increased pressure, for example, provided stronger profile designs. Such However, special profiles are very expensive and would make a tank system inaccessible more expensive.

There are also known bandages that are made of laterally arranged There are pipe profiles, which in turn have headbands consisting of pressed parts connected to one another as head bandages with the interposition of hook bolts are.

However, all of these bandage training could not be completely satisfactory, they all have the major disadvantage that, due to their construction Require a relatively large amount of material, since the Norxal profiles are relatively thick-walled are designed to compensate for a missing profile height through material thickness.

All these known bandages that follow the shape of the tank around the tank head surface reach around, need a bend of approx. 90 ° C in the corner areas. A welding together between the side and head bandages is technically complex.

In addition, an essential part of the problem arises from the fact that at These rigid bandages have an outwardly effective bulge of the side bandages an increased pressure acts on the central area of the head bandages and thereby the The top surfaces of the tank can be indented.

There was a further disadvantage to all of these known constructions in that they are a considerable part of their bulkiness for transport and storage Required space. It is also necessary to have the tanks at the storage location to fix and to attach connecting lugs to a battery arrangement at all to allow adjustment of the tank.

The requirements are also increasing due to the ever larger tank containers on such bandages even higher.

It therefore seems desirable to find a bandage that does not only avoids the disadvantages of the known bandages, but also simple and cheap can be produced, has no transport and storage problems and above In addition, a secure arrangement of the individual tank bodies to a so-called register as far as possible simplified.

In this respect, the two of them found themselves united Manufacture side parts and the two head parts of a bandage from individual parts and then the bandage can be firmly or detachably joined together to form a unit the side parts of the bandage to maintain the desired shape of the plastic lower even when high pressure occurs, preferably made from a profile which has a high moment of inertia or resistance.

A U-profile has already been proposed in this regard, which is made relatively thin-walled, but an increased leg length compared to the web width.

Furthermore, it has been found here that it is useful carry out the side parts of the bandage as far as possible over the entire length of the plastic tank and to design the head parts as components that are further subjected to tensile stress.

An important problem with these, which are composed of several individual parts Bandages is that the connection of the headboards with the side panels is easy and can be done without great effort. In addition, there is a requirement to that a Nachspannberkeit take place between the side parts and head parts of the bandage should, for example, to prevent shrinkage or tolerances in production easy to compensate. Unless the bandage is only concerned with the tank body, but also a pretensioning of the bandage is desired, must be as simple as possible A strong press fit of the bandage can be guaranteed.

Since the plastic tanks are often used in buildings with narrow passageways, Doors and stairwells have to be brought in, it is especially tight Through passages it may be necessary to remove the bandages prior to installation. the end For this reason, a clamping device for bandages should also have the option of offer opening and reuse.

This is where the present invention comes in and has as its object asked to solve the aforementioned problems with the least possible effort and deals with a device for tensioning and readjusting bandages on containers and tanks made of flexible material, such as plastic tanks for heating oil, wherein the bandages consist of side and head parts, which in their end regions are connected to each other.

To solve this problem, a corresponding device is proposed, which is characterized by a winding device attached to a bandage part is arranged and is connected to the end of the other bandage part.

It can be advantageous that the head part of the bandage is preferred consists of a flat strip profile, for example made of steel strip, the end area of which is designed as a tongue, while the side part of the bandage preferably consists of a There is a U-profile to which the winder is attached.

This winding device makes it the simplest possible way possible by winding the the other part of the agenda has a tensioning effect to achieve any manufacturing tolerances, and not just those that can occur due to the shrinkage process of the tank body.

The winding device itself can, for example, consist of a winding mandrel exist between the two horizontal legs of the side part of the bandage is arranged and rotatably mounted in / on this.

The winding mandrel can, for example, in the manner of a normal Polygonal screw be designed, the bolt area of which has a longitudinal slot, into which the end area of the other bandage part engages with a tongue formation. The longitudinal flash can be designed as a long eye, but it is also possible that the longitudinal slot bi9 is carried out to the free end of the bolt, in this regard is further proposed according to the invention that the screw head and / or Screw nut cooperates with a securing element which is in the tensioned position the bandage with a locking stop, such as cams, lugs, etc. in a locking recess of the band part engages. It is possible that as a security element a clamping plate between the screw head and / or screw nut and bandage part is arranged, which on the one hand with a projection, such as nose, cam, etc. in a recess of the bandage part engages and one edge area of which is tightened Position of the bandage on the screw head and / or the screw nut on the side is bent up and folded down.

Another training option according to the invention is thereby characterized in that the winding mandrel is bent at an angle, wherein its vertical leg between the two horizontal legs of the side part the bandage is rotatably mounted and a longitudinal slot for inserting the end area of the other bandage part, while its horizontal leg means for Has set to the bandage part. This is possible, for example, by that as a means for fixing the winding mandrel in the horizontal leg a hole for receiving a split pin, etc. is provided, which within a corresponding Bore of the side bandage part can be fixed.

It is also possible according to the invention that the winding mandrel as Cotter pin is designed with a T-shaped enlarged head, the head over simple split pins that overlap the T-shaped head or similar locking means can be fixed against the Ban dag part.

The execution possibilities of the winding device according to the invention can of course be expanded as desired, without thereby departing from the basic concept of the present invention, namely a winder on a Bandagsnteil -zuorder that with the the other part of the bandage acts and, by simply winding it up, the Bandage allows. The invention is based on a drawing, which in part purely schematically shows some arbitrary design options, explained in more detail.

The figures show: FIG. 1, on a reduced scale, a side view of a tank, FIG. 2 shows a front view according to FIG. 1, FIG. 3 shows a corresponding plan view, FIG. 4 shows a section along the line A-B of FIG. 2, FIG. 5 shows a sectional view Corner area of the tank according to FIGS. 4, 6 shows a section through the connecting area of the two drum parts when a multi-point screw is arranged as winding fields, 7 shows a corresponding section according to FIG. 6 showing a clamping plate, 8 shows the same section according to FIGS. 6 and 7 showing another Formation of the winding mandrel, Fig. 9 is a section along the line C-D of Fig. 4, Fig. 10 shows in section another embodiment of the winding mandrel, 11 shows a section along the line E-F in FIGS. 9 and 12 in a view from above the corner area of a tank with a representation of the locking mechanism provided recesses of the corresponding drum part.

In the case of the tank 1 standing on the floor indicated by 2, which is for example is made of plastic, three bandages are provided, the number of which is self-contained, can of course be changed according to the required tank height. There are 1 longitudinal grooves in the side walls of the tank for the arrangement of the bands 3 to 8 provided, which serve to accommodate parts 9 to 14 of the bandages. The side parts 9 to 14 are connected to one another by head parts 15 and 20.

While the side parts 9 to 14 preferably consist of a U-profile, which has an elevated Schenkelaus execution, are as head parts 15 to 20 for example, band iron provided, which is only a relative amount around its vertical axis have a low section modulus.

As can be seen in particular from FIGS. 2 and 3, are on one Side of the tank 1 on the side parts 12 to 14, the winding devices 21 to 24 arranged, which, as FIG. 3 shows, with the corresponding end regions 15a and 18a of the head parts 15 and 18 cooperate, while the other End areas t5b and 18b, as indicated by 25, for example by a simple Screw connection with the other side parts 9 are connected.

4 shows the corresponding ones in an enlarged sectional view Connection points between the head parts and the side parts of the bandage. the Winding devices 21 and 22 shown here in section are also for example designed in the manner of a winding mandrel, with - as can be seen - in the corresponding Slotted design, the end areas 15a of the head parts 15 and 18 lead some and accordingly screwed in with the required tension.

The winders 21 to 24 can, for example, from normal Polygonal bolts 26 exist. Thus, the sectional view according to FIG. 6 shows a hexagon screw, the bolt area 26a of which has a longitudinal slot designed as a long eye 27 has, in which the end region 18a of the head part 18 engages and then is wound up by turning the polygonal screw 26. To determine the polygon screw 26 in the tensioned state of the bandage is a safety element designed as a clamping plate 29 is provided, which on the one hand with a locking stop 29a in a locking recess 30 of the side part 12 of the bandage engages while another Edge area is bent up to the side and folded onto the nut, whereby an unintentional loosening of the screw nut is prevented.

Instead of the hexagon screw shown in FIG. 6, however, As shown in FIG. 7, a square screw is used. With the one in this drawing figure indicated embodiment of the winding device is the longitudinal slot 27 to to the free bolt end 26b and the securing element 29 on the screw head 26c effective.

The square screw is secured here, for example, by made a simple spring washer with washer.

As FIG. 8 shows, the winding mandrel 31 can also be bent angularly be formed, with its vertical leg 31a between the two horizontal Legs of the side part 12 of the bandage is rotatably mounted and a longitudinal slot 27 for inserting the end region 18a of the other bandage part 18, while its horizontal leg 31b has means for fixing to the bandage part 12. This means for fixing to the bandage part 12 consists, for example, of a simple one Split pin 33, which passes through a bore 32 of the horizontal leg 31b of the winding mandrel engages through and then engages through a further bore 34 of the bandage part 12 and there, as indicated, is turned off.

But it is also possible, as shown in Figs.

9. and 11 can be seen, the winding pads 31 with a T-shape to form an expanded head, the head also being via simple split pins 33 is in turn fixed with the bandage part 12 via corresponding bores.

Fig. 10 shows the possibility of the winding mandrel 31 as a simple one To represent splint, with a for the Corruption required profile 35 takes effect.

The drum part to be wound up is not shown in this drawing.

As can be clearly seen from Fig. 12, in the side part 12 of the bandage several bores 37 can be provided * around a corresponding to the required Tension provided locking for the respective intended securing element enable. These bores 37 can of course around the actual bearing bore 36 can be arranged around in any number.

The invention is of course not limited to the ones shown Execution options are limited, as there are many possible modifications in particular with regard to the training of the take-up core, without these being all shown here can be.

It is crucial that the individual parts of the bandages by means of a Winder are clamped against each other so that the tank is assigned to it Maintains shape and can be re-tensioned at any time without great effort.

Claims (11)

P A T E N T A N S P R Ü C H E 1. Device for tensioning and readjusting bandages on containers and tanks made of flexible material, such as plastic tanks for heating oil, wherein the bandages consist of side headers, which in their end areas with each other are connected by a winding device (21,24), which is arranged on one bandage part and with the ignition of the other bandage part is in operative connection. 2. Apparatus according to claim 1, d a d u r c h g e k e n n z e i c h n e t that the head part (15-20) of the bandage is preferably made of a flat band profile, consists for example of steel strip, the end area of which is designed as a tongue, while the side part (9-14) of the bandage preferably consists of a U-profile, to which the winding device (21-21) is attached. 3. Device according to claims 1 and 2, d a d u r c h g e k e It is noted that the winding device (21-24) consists of a winding mandrel exists between the two horizontal legs of the side part of the bandage arranged and is rotatably mounted in / on these. 4. Apparatus according to claim 3, d a d u r c h g e k e n n z e i c h n e t that the winding mandrel, for example, in the manner of a normal polygonal screw (26) is formed, the bolt area (26a) has a longitudinal slot (27), in which the end area (18a) of the other bandage part (18) with its tongue formation reaching into it. 5. Apparatus according to claim 4, d a d u r c h g e k e n n z e i c h n e t that the longitudinal slot (27) is designed as a long eye. 6. Apparatus according to claim 4, d a d u r c h g e k e n n z e i c h n e t that the longitudinal slot (27) is carried out up to the free bolt end (26b) is. 7. Device according to one or more of claims 4 to 6, d a d u r c h g e 1 e n il show that the screw head (26c) and / or the Screw nut (28) with a securing element (29) adds @enacts that in tensioned Position the bandage with a locking stop (29a), such as cams, moses, etc. in a Locking recess (30) of the drum part engages. 8. Apparatus according to claim 7, d a d u r c h g e k e n n z e i c h n e t that as a security element (29) between the screw head (26c) and / or Screw nut (28) and bandage part, a clamping plate is arranged, which on the one hand with a locking stop (29a), such as nose, cams, etc. in a locking recess (30) of the bandage part engages and one edge area of which is in the tensioned position the connection to the screw head (26c) and / or the screw nut (28) on the side is bent up and folded down. 9. Apparatus according to claim 3. d a d u r c h e k e n n n z e i c h n e t because the winding mandrel (31) Is formed bent at an angle, with its vertical leg (31a) between the two horizontal legs of the side part (12) of the 3andages rotatably mounted and a longitudinal slot (27) for inserting the end area (18a) of the other bandage part (18), while its horizontal leg (31b) has means for fixing to the belt abutment part (12). 10. The device according to claim 9, d a d u r c h g e k e n n z e i c h n e t that as a means for fixing the winding mandrel (31) in the horizontal Leg (31b) a bore (32) for receiving a split pin (33) etc. is provided which is within a corresponding bore (34) of the seirlichen bandage part (12) can be determined. 11. The device according to claim 3, d a d u r c h g e k e n n z e i c h n e t that the winding mandrel (31) widened as a split pin with a T-shaped Head is formed, the head via simple split pins (33) which form the T-shaped Reach over the head or similar locking means can be fixed with respect to the bandage part (12) is.