DE1939796U - LOADING WINCH FOR TRUCKS. - Google Patents

Description

RJUM.555-5.U6

DS PL.- i WG. B. SGWAlD

ftgarf S, C-aibenhennensir. il 6771

Hydrauliska Industri Aktiebolaget Hudiksvall / Sweden

/ Loading winch for trucks /

The invention relates to loading winches for trucks, which are designed in the manner of a crane. Here it is of great importance that the loading winch is as light as possible and takes up little space on the vehicle. Through the Equipping these loading winches with a tilting arm on their loading boom gives you a relatively good one

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simple construction to vary the layout of the load from the center of rotation of the crane. Through, The tilting arm also makes it possible to move the crane into a relatively compact unit during transportation to collapse.

In some of the known constructions, the tilt arm is unfolded onto the loading boom. This is however, the extension of the extension arm is relatively limited, otherwise there is a risk of that this arm is essential during the promotion position protrudes beyond the dimensions of the truck.

One therefore prefers another embodiment of which is also based on the present invention and in which the tilt arm can be pivoted under the loading boom is. Here you have to keep the tilt arm so short keep that in the transport position the same in the space between the stand of the crane and

the outer end of the boom can, or with a longer tilt arm, the loading boom can only be pivoted downwards to a limited extent.

In order to avoid these disadvantages of the known design, the extension arm according to the invention is after Pivoting the tilt arm into its lower position transversely to the stand and extends either laterally from this or through an opening, a slot or the like thereof. The extension arm can be carried out for a relatively long time in this way be, so that the crane compared to the known Äusführungsformen a much larger and for everyone Purposes given sufficient scope.

In a preferred embodiment of the invention, the extension arm is used as a guide tube for a Telescopic boom formed, which is attached to the side of the tilt arm and outside on one side of the Loading boom extends.

Further features of the invention emerge from the following description of the drawings. Show it:

Fig. 1 is a rear view of a loading winch according to the invention, the truck on which the loading winch is attached, indicated with dash-dotted lines is,

Fig. 2 is a plan view of the same in the transport position, on a somewhat larger scale, and

Fig. 5 is a side view of the outer end of the cargo boom with tilt arm and extension arm according to another embodiment of the invention.

On a base 2 provided with lowerable legs 1 a stand 5 is vertically rotatable. At the upper end, a loading boom 5 can be pivoted about a horizontal axis 4- mounted, which is hinged by a hydraulic piston cylinder 6,7 to the loading boom at 8 and to the stand at 9

is. At the outer end of the boom 5? the mer forked is, a tilting arm 11 is mounted pivotably about a horizontal axis 10. This one is through one hydraulic piston cylinder 12, 13 pivotable, the at 14- to one ear of the tilting arm 11 and at 16 to the Loading boom 5 is articulated »On the one hand, the tilting arm 11 is provided with a projection 17 on which a guide tube 18 extending parallel to the tilting arm and serving as a verSigerungsarm one in the same axially displaceable telescopic boom 19, provided with a load hook 20 at the outer end, is attached is, preferably by welding. In the extended position (see Fig. 1 on the right with dash-dotted lines) the telescopic boom 19 is continuous with one of the same and the outer end of the guide tube 18 Bolt or the like held. The guide tube 18, which runs parallel to the rocker arm, extends so far to the side of the same that it coincides with the

With the crane folded up (see FIGS. 1 and 2), telescopic boom 19 moves laterally (in front of) the stand 3 extends and to lie in the barely 21 between the stand and the cab 22 of the truck comes. In the folded position, no parts of the crane extend above the driver's cab 22 or to the side of the same.

As shown in FIG. 1, the tilting arm can also be provided with a load hook 23 for heavier loads being.

When the crane arm is fully extended, as shown in FIG appears to be given considerable scope.

According to the embodiment shown in FIG. 3, the telescopic boom 19 is through in the guide tube 18 a hydraulic piston cylinder 24, 25 displaceable, with one end through a bolt 26 with the rear

End of the guide roller 18 and through a bolt 27 united with the front end of the telescopic boom 19. The same is also with a number of block disks 28, and the rocker arm 11 is at its front end with a corresponding number provided with block disks 29 «Over the same runs a rope 30, which at one end with a load hook 31 and which is attached at the opposite end, for example at 32, to the guide tube 18. With a Such a device can be used from places which are far away from the truck, For example, pulling tree trunks onto the vehicle's flatbed for loading, when fully retracted Telescopic boom 19 namely the rope 30 has a sufficient free length. If then the telescopic boom 19 with the piston cylinder 24-, 25 is extended, this will Rope 30 with the load attached to the load hook 31 caught up automatically. The load is on the truck

by pivoting the boom 5 and the Tilt arm 11 raised by means of their respective piston cylinders 6, 7 and 12, 13, after which the load by rotating the stand 3 by means of a rotating unit provided for this purpose 3 ^ v ^ ig «1) via the Platform 33 is swiveled in and then lowered onto the same.

The embodiments shown and described are to be regarded as examples only, and the various parts of the loading winch may differ in the Structurally changed within the scope of the following claims. An effect similar to that given above can be achieved with an extension arm 18 coaxial with the tilt arm, if instead the stand 3 of the crane is pivoted so that the extension arm 18 when the crane is folded in front of the Stand has enough space. Such an embodiment is also conceivable within the scope of the invention, where the

Stand 3 is formed with a central opening or channel into which the extension arm 18 can be swiveled in when the crane is folded into the transport position.

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Claims (3)

18H55-5.U6 Expectations . Charger for trucks with a loading boom that can be swiveled vertically with respect to a stand and a tilting arm with an extension arm that is pivotably connected to it, wherein the tilting arm can be swiveled under the loading boom, characterized in that the extension arm (18) after the tilting arm (11) has been swiveled into its lower one Position is transverse to the stand (3) and extends either to the side of this or through an opening, a slot or the like. 2. Charger according to claim 1, characterized in that that the extension arm as a guide tube (18) for a telescopic boom is formed which is attached to the side of the tilt arm (11) and is located on the outside one side of the boom (5) extends. - 11 - 3. Charger according to claim 2, characterized in that that in a manner known per se at the outer ends of the tilting arm (11) and in the extension arm (18) mounted telescopic boom .19) block disks (28, 29) are rotatably arranged over which a rope (30) runs, one end of which on Tilting arm (11) is attached and has a load hook (31) or the like at the opposite end.