DE3013488A1 - PACKAGE FORK WITH PROTECTIVE SHEATH OR PROTECTIVE BASKET - Google Patents

Description

Ernst Probst- «Ercknarwihausen, 3.4.80

Device construction - custom-made products ·· ·· ·· _Λ ^.

7141 Erdmannhausen 3013488

Patent and utility model auxiliary application

Applicant: Ernst Probst

Device construction custom-made products

7141 Erdmannhausen

Designation: Package fork with protective jacket or protective basket

Description;

The invention relates to a package fork with a protective jacket or protective cage for safely picking up, transporting and depositing stacks with building materials that are palletized or packed with steel band straps or with shrink film, for example bricks, by means of a C-hook, with its telescopically extendable upper part a protective jacket, optionally with an additional one Protective floor against the falling of individual parts from the stack to be transported building material is firmly connected . .

Here, operational safety, ie avoiding the risk of accidents for the construction site personnel, is extremely important. The construction trade association therefore places certain requirements on the load handling equipment. When using a so-called package fork, a protective jacket around the stack must ensure that no parts fall from it during transport and endanger people as a result. In the case of building materials that are not palletized, i.e. only packaged with steel strapping, or if the distance between the pallet and the protective jacket is too large, i.e. if the distance between the edge of the pallet and the protective jacket is greater than 5 cm, additional protection is required on the underside, i.e. a floor below the package in addition to the protective jacket so that only a protective cage that is open at the top is created.

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A known device meets these requirements in that a Four-sided protective jacket with or without a base, pivotable on the supporting structure the pallet fork is attached, which by the operator after lifting the load to be picked up by hand over the Stack must be swung down. Another operator is required at the unloading point to restore the protective cage swivel up so that the stack is released and can be deposited. Although the dead weight of the protective cage is used to relieve the strain of the operating personnel can be largely compensated for by spring force, is still a considerable amount when using this device manual labor required, especially if the stack is more than 1 m high.

In another known version of a pallet fork is on whose supporting structure has a vertical guide device attached, a manual lowering of the in this guide: movable protective cage with the fork tines pushed under the stack and with Placing the load at the destination requires the protective jacket to be pushed up by hand.

All these known constructions have the disadvantage that for the effective use of your protective devices, sometimes considerable and time-consuming manual work combined with a corresponding Expenditure of physical strength, especially with higher packages, are required, so that the operating personnel is tempted to do such Dismantle guards and work without them.

It is therefore of crucial importance that the protective device so it is carried out that on the one hand it is inevitably effective, i.e. remains inextricably connected to the hook and when it is used is automatically actuated to transport a package with building materials, on the other hand, no energy-sapping manual effort to operate it is required.

The object on which the invention is based was to provide an inevitably effective protection against individual falls Share 'to achieve from the stack of building materials to be transported without

130042/0211

to have to assume manual operation for this. According to the invention this is achieved by the fact that the protective device is actuated by the hoist used to hold the load.

An exemplary embodiment of the subject matter is given with reference to the drawings the invention explained in more detail.

Show it:

1 shows a package fork in side view with the package received and the protective jacket surrounding it

Fig. 2 shows a package fork in side view with hochge; pgenem top and protective sheath and thereby released. package

3 shows a package fork in a rear view with a protective jacket and in addition folded under protective floor

Fig. 4 shows a package fork in a rear view with hochge ogenem protective sheath and folded up, locked ScrXitz base.

The protective jacket (1) is firmly connected to the upper part (2) of the package fork, which by means of a telescopic guide (3) with the lower part (4) of the package fork creates a vertically extendable, inseparable structural force ^; p.heit forms. To adapt ker_ (5) to the use of the device to the different Pake ⁺ dimensions and finishings z sliding transfer .. :: * eil carries two or more bz'car- itself - the Ur.te * .

Dsr Taleskopier-./ej of the shell (2) is limited to a dimension that in the extended position of the upper part allows the fork prongs to be pushed under the package to be picked up. When space is limited, i.e. if there are several packages standing close together, the package to be picked up can initially only be one without a protective jacket little raised from the ground and at a distance from the neighboring ones. Parcels are parked, which allows afterwards the with Lower the protective jacket firmly connected to the upper part over the package to be transported. In the lowest position it is with the Protective jacket (1) together forming a unit upper part (2) by an automatically acting pawl (6) on the lower part (4) with this

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locked so that when the load is lifted it is inevitably covered by the protective jacket and thus the required security against individual parts falling out of the package are guaranteed.

At the unloading point, the automatically acting pawl is on Lower part when the load is placed on the ground, the upper part free again, so that the protective sheath is carried along by the hoist rope of the hoist the telescopic upper part is raised together and then the prongs of the package fork pulled out from under the stack in a known manner can be.

In order to ensure that the operating personnel can safely guide the package fork towards the package to be picked up when the protective jacket is raised two telescopic handle tubes (7) are attached to the upper part, which extend downwards when the protective jacket is pulled up so that they are in the area of movement of the operating staff to safely direct the package fork to the to be picked up " Package are easily accessible.

To adapt the load suspension point to the different center of gravity of the total load hanging on the rope of the hoist, consisting of the C-hook with protective jacket and with / without the load of the package to be transported, a spring-loaded one serves on one Slideway (8) in the boom (10) of the upper part of the displaceable carriage (9), which is equipped with a suspension eyelet (11) for hanging a on the hoist rope of the used hoist attached load hook is equipped. The built-in compression spring ensures that the load suspension point vertical axis runs through the center of gravity of the total load, so that the picked up load does not oscillate at an angle, but is transported vertically hanging on the rope. The path of the slide is adjustable at both ends of the slide Limited stops.

When transporting non-palletized building materials, the additional Equipping the above-described C-hook with a swiveling one

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Protective floor (12) possible, so that an apron basket is created with the protective jacket together with additional protection downwards, which can also be used when transporting palletised building materials where the distance between the pallet edge or the outside of the package and the protective jacket is greater than 5 cm. Here, the pivoting shield base after unlocking in the rest position with the raising of the packet is allmähl.ch swung under this.

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Claims (3)

1. Package fork with protective sheath for safely picking up, transporting and depositing stacks with palletized or shrink-wrapped building materials, the protective sheath is actuated together with the upper part by the lifting and lowering movement of the hoist, characterized in that a protective sheath against falling individual parts from derr. transportable building material package with the telescopically extendable top of a C-shaped hook is non-detachably connected and that the upper part during the lowering in the lower ends ¹ RECOVERY locked by an automatically acting locking pawl with the lower part for the transport of the male packet and when re-placing the load at the destination this connection is automatically unlocked so that the protective jacket can be pulled up together with the upper part to release the transported and deposited package. 2. Package fork according to claim 1, characterized in that the protective jacket of the C-shaped hook when receiving a package after.-. Push the forks together under the load with the.,. telescope-like extended upper part is lowered, to .r. "r.-hlie: 31I surrounds the package to be transported in such a way, dc.ß with Tr -.! ". sport no parts can fall from it. 3. Package fork according to claims 1 and 2, characterized in that that on the upper part of the C-hook a pivotable and in the rest position Locked protective floor in addition to the protective jacket is appropriate for the Trensport "on non-palletized building materials in a rocket or at a distance greater than 5 cm between the edge of the pallet or the edge of the pallet and the inside of the 130042/021 1 BATH ORIGINAL Protective jacket ε 3Ο is used that ar after unlocking in the folded up rest position gradually when lifting the package is folded under this. Package fork according to claims 1-3, characterized in that two telescopic Handle tubes are attached, which were extended when pulling up the upper part and the protective jacket down and the Operating personnel to direct the parcel fork are easily accessible. BATH ORIGINAL. 130042/0