DE8612228U1 - Device for setting down and picking up a container from or onto a motor vehicle - Google Patents

Description

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F. Weyhaüsen GmbH & Co. KG machine factory, Visbeker Strasse, 2878 Wildeshäüsen

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The invention relates to a device for setting down and picking up a container from the brow on a motor vehicle, wherein the container has a fitting into which a hook at the free end of one on the vehicle in a vertical plane pivotally hinged loading arm engages, which hook with a hook mouth that automatically closes and automatically is equipped with an opening safety claw.

In the position in which the container is to be gripped or released by the loading arm, the hook mouth must be open, while it must be closed in the other positions of the loading arm to secure the container.

There are devices of the type mentioned above on 3em Market in which the securing claw can be pivoted about an eccentric axis in such a way that it passes through it when the loading arm is lowered Its own weight automatically swivels into its open position, while when the loading arm is raised, it swivels into its own weight the closed position pivots. The container is gripped or released when the loading arm is lowered, the hook mouth

What is open is what is ensured by the arrangement of the well-known safety cows. As the opening and closing process the safety chaplet is not controlled, it can, however, happen that the safety claw is slightly raised loading arm and not only in the lowered end position of the loading arm opens so that the fitting of the container can slip out of the hook jaw in one position of the loading arm, in which a release of the container was not planned. In the event of such an unplanned and improper release of the container the container may be damaged and an accident may occur.

The invention is based on the object of developing a device of the type mentioned at the outset in such a way that the container only comes free from the loading arm at an individually predeterminable point in time.

According to the invention, the object has been achieved by ei? ·.-Die Safety claw locking element in its closed position, to which an actuating device for unlocking assigned.

The locking member locks the self-opening safety claw in its closed position, so that the safety claw the hook mouth only releases when the safety claw is unlocked by means of the actuating device will. This has the advantage that an unplanned slipping out of the fitting of the container from the hook mouth is no longer possible and thereby the operational reliability of the device

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is improved. Opening the securing claw through the fitting of the container when Anfährvörgäng is not hindered by the Sperrörgan And also open an automatic wei "is terhin possible as long as the backup pawl unlocked \ is.

According to a further development of the device according to the invention

is the locking element a safety claw in an end position

ment holding tension element and is the actuating device a working cylinder arranged on the loading arm and acting on the pulling element. By means of the working cylinder, the safety claw be pulled over the pulling element into its closed position and held in the closed position, so that an unplanned opening of the hook mouth is reliably prevented as long as the tension element is tightened. When the tension element is released by means of the working cylinder, the securing claw is retained their free mobility again, so that they can open again automatically. By tightening the tension element, The hook can also advantageously be closed at a predetermined point in time.

In a preferred embodiment, the pulling element is one that runs from the piston of the working cylinder to the securing claw Cable that is inexpensive, easy to assemble and easy to maintain.

Since only relatively low forces are required to lock the securing claw, the working cylinder is preferred an economical and operationally reliable pneumatic cylinder or a simple hydraulic cylinder is used.

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An exemplary embodiment from which further inventive features result is shown in the drawing. Eb ' demonstrate:

ι Fig. 1 the end of a loading arm with one at the free

End arranged hook in the open position

and

I Fig. 2 shows the loading arm according to Fig. 1 with the hook in the

I closed position.

| i In Fig. I. the free end of a loading arm 1 is shown

jf represents, on which a hook 2 is arranged. The not dargef presented section of the loading arm 1 is on a motor vehicle

■ pivotable in the direction of arrow 3 in the vertical plane hinged.

■ The hook 2 has a hook mouth 4 for gripping a loading

I hit a container. The hook mouth 4 is mean one Lockable securing claw 5, which is articulated on an eccentric axis 6 so as to be pivotable on the hook 2. The safety claw 5 has an additional weight 7, which in certain pivoting positions of the loading arm 1 for automatic opening and closing the securing claw 5 ensures.

The securing claw 5 is connected to the piston rod via a cable 8 9 of a working cylinder 10 arranged on the loading arm 1 is connected. In the illustration of FIG. 1, the piston rod is 9 extended and the cable 8 relaxed. Because of the at

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the weight force acting on the additional weight 7 is the see- | Rungsklaue 5 pivoted into its open position.

FIG. 2 shows the section of the loading arm 1 according to FIG shown with closed hook 2. The same components are denoted by the same reference numerals as in FIG. 1.

In the illustration in FIG. 2, the piston rod 9 is retracted and the cable pull 8 is tensioned, whereby the securing claw 5 counteracts the weight force acting on the additional weight 7 is pulled into its closed position and held there.

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Claims (5)

2 * I ■ · ■■ · · »■ ■■ · entitlements; " 1. Device for setting down and picking up a container from or on a motor vehicle, the container having a fitting into which a hook engages at the free end of a loading arm pivoted on the vehicle in a vertical plane, which hook rides the hook mouth automatically is equipped with a locking and automatically opening safety claw, \ marked by a locking claw (5) in its closed position Locking member to which an actuating device for unlocking is assigned. 2. Apparatus according to claim 1, characterized in that the Sperrorgau is a securing claw (5) holding the tension element in an end position and that the actuating device is a working cylinder (10) arranged on the loading arm (1) and acting on the tension element. J3_j_ Device according to claim 2, characterized in that that a pulling element from the piston rod (9) of the working cylinder (10) to the securing claw (5) running cable (8) is. 4. Device according to one of claims 2 or 3, characterized in that the working cylinder (10) is a pneumatic cylinder. * tttt ti t < 4 9 1 »r · Γ" "· 5. Device according to one of claims 2 or 3, characterized in that the working cylinder (10) is a single-acting hydraulic cylinder. ■ 11 Kt 11 11 11 1 14 «ll 1 1 1 14« till! 1 1 JIl