EP0263974A2 - Quick fastener and a connecting part of an extension part for a large transport container, especially for extension parts of a lifting or depositing device for said containers, e.g. containers, shelters, cabins or the like - Google Patents

Abstract

In order to raise and lower transportable large containers 10 or to support them above the ground, lifting or lowering devices with four rack and pinion jacks are used, which can be attached to the ISO corner fittings 18, 19 of the large container 10 via brackets 11. Each bracket 11 has an approximately container-high connecting bar 20, which is hooked into an upper ISO corner fitting 19 by means of a pin 22 arranged axially parallel at its upper end and at its lower end via an angular connecting part 16 by means of two quick-release fasteners 17 and 17 'is releasably attached. In order to enable this attachment to the lower ISO corner fitting 18, at least one quick lock 17 is designed as a separate, removable component. The quick fastener 17 is also for other attachments, e.g. Roller stands suitable for large containers.

Description

The invention relates to a quick-release fastener for attachments to transportable large containers, in particular for connecting parts of a lifting or depositing device for such large containers, for example containers, shelters, cabins or the like, which have ISO corner fittings with elongated holes, with which a quick-release fastener engages can be brought, the quick-release fastener has an axially displaceable and rotatable locking bolt with a locking head, the length of which is greater than the width of the elongated holes in the ISO corner fittings and which extends from an ineffective mounting or insertion position through an angle of 90 ° an effective clamping position rotatable and by a clamping nut on the locking bolt against the Can be tightened on the inside of the respective ISO corner fitting.

A known lifting or depositing device for transportable large containers has four rack winches, the brackets of which can be attached to the ISO corner fittings of the container in question by means of quick-release fasteners via approximately container-high connecting bars. The arrangement is such that each connecting bar with a pin rigidly fixed axially parallel to the connecting bar on a cantilever arm is suspended in an upper ISO corner fitting, while the lower end of the connecting bar is connected to the lower one via a cantilevered arm by means of a horizontally arranged quick-release fastener ISO corner fitting is fixed. This quick-release fastener is permanently installed in the relevant laterally projecting arm at the lower end of the connecting bar and is provided with a projection which fits exactly into the slot in the lower ISO corner fitting. However, this makes it impossible to arrange two such quick-release fasteners over corners and to engage them with one of the lower ISO corner fittings of the respective large container, which is always desirable for reasons of improved stability when the containers are particularly heavy and movable. The DE-GM 82 35 609.2 shows a solution how to attach the boom of a lifting or lowering device for large containers by means of a rigid and an axially movable engagement pin on a corner fitting of a large container. However, this construction is not readily related to that discussed above Quick fasteners for ISO corner fittings can be transferred.

Another disadvantage of the quick-release fasteners rigidly built into the connecting parts of the lifting or lowering device is that in the event of a defect, e.g. a spring break the whole boom must be brought in for repair. In addition, the built-in quick-release fasteners increase the unit weight of the connecting parts of the device, which, as is known, should be able to be dismantled into easily portable and stowable individual parts after use. In addition, there is a need for a quick release for any attachments.

The invention has for its object to provide a quick release, which avoids the above disadvantages and is flexible to attach attachments easily, quickly and safely to an ISO corner fitting of a large container. In addition, the repair of the quick-release fastener is to be simplified and the unit weight of the attachments is to be reduced.

The above object is achieved according to the invention in that the quick-release fastener is designed as an interchangeable component, in which the locking bolt with its biasing spring is mounted in a housing which has a support head relative to the clamping nut and then a main body part with a clear cross section of an elongated hole of an ISO corner fitting has a corresponding cross-section, and that the connecting part contains an elongated hole for fittingly accommodating the main housing part, which can be brought into alignment with an elongated hole of an ISO corner fitting. This makes it possible to use the (top or bottom) ISO corner fittings a large container, also to install two quick-release fasteners one after the other, so that the stability required here is achieved in the case of particularly heavy and movable large containers. The quick-release fastener is also suitable for any add-on parts, in particular for connecting parts of lifting and lowering devices for large containers. After using, for example, a lifting or depositing device, the quick-release fasteners according to the invention can be dismantled from their connecting parts, so that their piece weights are reduced accordingly. In addition, in the event of a defect in a quick-release fastener, it can be sent separately for repair or the connecting parts of the lifting or lowering device for repair, and finally the maintenance of the interchangeable quick-release fasteners is also more convenient than in the prior art. The interchangeable quick-release fastener according to the invention can advantageously also be combined with a quick-release fastener rigidly installed in an add-on part and is therefore also suitable for retrofitting. Another example of an attachment is a roller block.

Embodiments of the invention emerge from the subclaims. If, according to claim 2, at the end of the main housing part, which is opposite the support head, a slot is designed for a suitable reception of the locking head of the locking bolt in its clamping position, it is ensured that when the locking bolt is rotated from its insertion position into its clamping position upon reaching the locking head snaps into the slot by spring pressure and thus against another rotation is blocked. This indicates to the operator that the quick-release fastener is in its locked position in this state.

If the support head on the quick-release fastener housing is frustoconical, the weight of the quick-release fastener is reduced.

A still further embodiment of the invention is characterized in that the lengths of the main housing part and the locking bolt of the quick-release fastener are dimensioned for the joint clamping of several attachments. These attachments can e.g. act as a boom of a lifting or depositing device and about the connecting part of a roller block.

• Fig. 1 eine Seitenansicht einer Behälterecke, an deren unteren ISO-Eckbeschlag ein etwa behälterhoher Anschlußholm einer Hub- bzw. Absetzvorrichtung mittels zweier Schnellverschlüsse befestigt ist, von denen einer gemäß der Erfindung ausgebildet ist;
• Fig. 2 eine Draufsicht auf die Behälterecke mit dem Anschlußholm entsprechend Fig.1;
• Fig. 3 eine Schnittansicht entlang der Linie III - III in Fig. 1, jedoch im vergrößerten Maßstab;
• Fig. 4 einen Längsschnitt des in Fig. 3 links gezeigten auswechselbaren Schnellverschlusses, und zwar in einem Zustand, in dem dieser montiert oder demontiert werden kann;
• Fig. 5 eine Seitenansicht des in Fig. 4 gezeigten auswechselbaren Schnellverschlusses, gegenüber der Fig. 4 um 90° gedreht und
• Fig. 6 eine Stirnansicht des auswechselbaren Schnellverschlusses in Blickrichtung des Pfeils VI in Fig. 3, wobei der Schnellverschluß hier seine Klemmposition einnimmt.

The invention is subsequently explained with reference to the drawings of an exemplary embodiment. Show it:

• Figure 1 is a side view of a container corner, at the lower ISO corner fitting an approximately container-high connecting bar of a lifting or depositing device is fastened by means of two quick fasteners, one of which is designed according to the invention.
• Figure 2 is a plan view of the corner of the container with the connecting bar corresponding to Figure 1;
• 3 shows a sectional view along the line III-III in FIG. 1, but on an enlarged scale;
• Fig. 4 is a longitudinal section of the interchangeable quick release shown in Fig. 3, namely in a condition in which it can be assembled or disassembled;
• Fig. 5 is a side view of the interchangeable quick-release fastener shown in Fig. 4, rotated by 90 ° and Fig. 4
• Fig. 6 is an end view of the interchangeable quick-release fastener in the direction of arrow VI in Fig. 3, the quick-release fastener assuming its clamping position here.

A lifting or depositing device for a large container 10 has four cantilevers 11 of the same construction which can be detachably fastened at the corners and are each assigned to a rack winch, not shown, by means of which the large container 10 can be raised and lowered. At each corner of the large container 10, ISO corner fittings 19 and 18 are provided at the top and bottom, on which an approximately container-high connecting bar 20 of the boom 11 can be attached to the large container 10 over a corner and at a distance. The connecting bar 20, which in the exemplary embodiment consists of a square tube, is provided at its upper end with a laterally projecting arm 21, to which a pin 22 is attached, pointing downward, axially parallel to the connecting bar 20. The pin 22 can be inserted into a corresponding opening in the top of the upper ISO corner fitting 19 during assembly of the connecting bar 20 or bracket 11, as a result of which the bracket 11 can be "suspended" on the large container 10 at the start of assembly. The lower end of the connecting bar 20 is then releasably connected to the lower ISO corner fitting 18. At the lower end of the connecting bar 20 is a right-angled connector 16 attached, which is reinforced by a welded stiffening plate 15 (Fig.3). The lower ISO corner fitting 18 has two perpendicular elongated holes 14 arranged with a corner, with which an exchangeable quick fastener 17 and a further quick fastener 17 'can be brought into engagement. The further quick-release fastener 17 'is only permanently installed in the connecting part 16 by way of example, and a replaceable quick-release fastener 17 can also be provided in its place. The latter construction is even preferred for various reasons explained at the outset.

The interchangeable quick-release fastener 17 has a locking bolt 23 which carries a locking head 24 at one end and is provided with a threaded section 25 in the region of its other end. A clamping nut 26 is screwed onto this threaded section 25 and has a rotary handle 27 in addition to its hexagonal section. The locking bolt 23 is also provided with a cylindrical bearing section 28 and a further, reduced-diameter cylindrical bearing section.

The quick-release fastener 17 also contains a solid housing 30, which is composed of a main housing part 31 and a support head 32. The main housing part 31 has a cross section which corresponds to the clear cross section of the elongated holes 14 in the ISO corner fitting 18. This main housing part 31 extends with an assembled quick-release fastener 17 through an elongated hole 14 and through one Elongated hole 33 in the connecting part 16, which is aligned with the elongated hole 14 in question and has the same cross section as this. In the exemplary embodiment, the support head 32 is frustoconical and is seated on the outside of the connecting part 16 when the quick-release fastener 17 (FIG. 3) is installed.

The quick-release housing 30 contains a bore 34 into which a compression spring 35 and a bearing bush 36 are installed, the latter being axially displaceable. The locking bolt 23 is rotatably and axially displaceably mounted in the housing 30. In particular, the bearing section 28 of the locking bolt 23 is seated in a housing bore 37, while the bearing section 29 is mounted in the bush 36. A washer 38 is arranged between the clamping nut 26 and the support head 32. A locking pin 39 fastened to the outer end of the locking bolt 23 prevents the clamping nut 26 from being inadvertently unscrewed from the locking bolt 23 and 6 shown clamping position engages or engages under the pressure of the spring 35.

Insofar as the permanently installed quick-release fastener 17 'matches the exchangeable quick-release fastener 17, the same parts are identified by the same reference numbers. The locking bolt 23ʹ of the quick release 17ʹ has an elongated cylindrical bearing section 28ʹ and is mounted with this in a bore 37ʹ, which is worked out in the connecting part 16. A projection 41 is also provided on the connecting part 16, the cross section of which corresponds to the clear cross section of the other elongated hole 14 in the ISO corner fitting 18. The projection 41 also includes the slot 40 into which the locking head 24 engages in its clamping position shown in FIG. 3. The bearing bush 36 and the compression spring 35 are installed in a bore 34 'in the connecting part 16. In Fig. 3, both quick fasteners 17 and 17ʹ are in their clamping positions in order to firmly connect the connecting part 16 on the connecting bar 20 to the ISO corner fitting 18 or the large container 10.

To assemble the connecting bar 20 or bracket 11 on the large container 10, the bar 20 is, as already explained, first hooked into the upper ISO corner fitting 19 with the pin 22. Then the connector 16 is brought into contact with the lower ISO corner fitting 18. During this process, the interchangeable quick-release fastener 17 has not yet been installed and the projection 41 on the connecting part 16 can thus be inserted into the slot 14 in question in the ISO corner fitting 18. The closure head 24 is in the assembly or insertion position shown in FIGS. 4 and 5 for the quick release 17. After the insertion of the projection 41 into the elongated hole 14 in question, the locking bolt 23ʹ is rotated through an angle of 90 ° into its clamping position, which is shown in FIGS. 3 and 6. Here, under the influence of the compression spring 35, the locking head 24 engages in the slot 40 and comes into contact with a bearing surface 42 on the inside of the ISO corner fitting 18. Now, by appropriately rotating the clamping nut 26, the quick lock can be fastened 17ʹ are biased.

Next, the interchangeable quick-release fastener 17 in its assembled state shown in FIGS. 4 and 5 with the main housing part 31 is inserted into the elongated holes 33 and 14 of the ISO corner fitting 18 until the support head 32 rests on the outside of the connecting part 16. The closure head 24 thus assumes the insertion position shown in FIGS. 4 and 5 during this process. Then the locking bolt 23 rotates through an angle of 90 °, whereupon the locking head 24 automatically engages in the slot 40 on the housing 30 under the influence of the compression spring 35. The locking head 24 comes into contact with a further contact surface 42 on the ISO corner fitting 18. Following this, the quick-release fastener 17 can also be pretensioned by a corresponding rotation of the clamping nut 26, whereupon the lower end of the connecting rod 20 or its connecting part 16 is firmly attached the lower ISO corner fitting 18 is connected to the large container 10.

When dismantling the connecting rod 20, the procedure is reversed. First, the quick-release fastener 17 is removed, namely by loosening the clamping nut 26, until the locking bolt 23 can be moved axially inwards so far that the locking head 24 lies outside the slot 40 and the locking bolt 23 can then be rotated through an angle of 90 ° to bring the closure head 24 into its ineffective mounting or insertion position (FIGS. 4 and 5). Then the quick release 17 can be pulled out of the elongated holes 14 and 33. Now the lock nut 26 of the Quick release 17ʹ released and the locking bolt 23ʹ moved inwards and rotated by an angle of 90 °, so that the locking head 24 can be pulled out through the slot 14 in the ISO corner fitting 18 when the connector 16 is pivoted away from the large container 10 accordingly. Then you only need to lift the connecting bar 20 to bring the pin 22 out of engagement with the ISO corner fitting 19. Merely for the sake of completeness, it should be mentioned that the conditions at all four corners of the large container 10 are the same and, consequently, each lower ISO corner fitting 18 can be assigned an exchangeable quick fastener 17 and permanently fastened fastener 17 'according to FIG. 3.

It is also possible to provide two interchangeable quick fasteners 17 for each lower ISO corner fitting 18. In this case, only a second elongated hole 33 has to be worked out in each connecting part 16 and the projection 41 on the connecting part 16 has to be removed.

The quick fastener 17 is also suitable for other attachments and can be fixed to the lower and / or upper ISO corner fittings of a large container or the like.

Claims (4)

1. Quick fastener for attachments to transportable large containers, in particular for connecting parts of a lifting or depositing device for such large containers, such as containers, shelters, cabins or the like, which have ISO corner fittings with elongated holes, with each of which a quick fastener can be brought into engagement, whereby the quick-release fastener has an axially displaceable and rotatable locking bolt with a locking head, the length of which is greater than the width of the elongated holes in the ISO corner fittings and which can be rotated from an ineffective mounting or insertion position by an angle of 90 ° into an effective clamping position and can be tightened by a clamping nut on the locking bolt against the inside of the respective ISO corner fitting, characterized in that the quick-release fastener (17) is designed as an interchangeable component in which the locking bolt (23) with its biasing spring (35) is in a housing ( 30) is stored, which against Over the clamping nut (26) has a support head (32) and then a main housing part (31) with a cross section corresponding to the clear cross section of an elongated hole (14) of an ISO corner fitting (18), and that the connecting part (16) has an elongated hole (33) for fittingly accommodating the main housing part (31), which can be brought into alignment with an elongated hole (14) of an ISO corner fitting (18). 2. Quick-release fastener according to claim 1, characterized in that at the end of the main housing part (31), which is opposite the support head (32), a slot (40) for fittingly receiving the locking head (24) of the locking bolt (23) in its clamping position is. 3. Quick fastener according to claim 1, characterized in that the support head (32) on the quick fastener housing (30) is frustoconical. 4. Quick release fastener according to claim 1, characterized in that the lengths of the main housing part (31) and locking bolt (23) of the quick release fastener (17) are dimensioned for the joint clamping of several attachments.

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