DE6938493U - ARTICULATED BOOM FOR MOVABLE CONCRETE PUMPS - Google Patents

Description

The invention relates to an articulated boom for verfahr bare Concrete pump, which is arranged on a turntable and at least two pivotable against each other and pegenüber the turntable Has arms for holding a pipe-connected concrete delivery hose

The articulated boom movable concrete pumps are designed so that their arms, in which at the free end of the one a curved bracket for the concrete delivery hose is arranged, in the collapsed state extend substantially horizontally and the kink between two Arms and the handrail do not extend beyond the outline of the vehicle extend beyond. Concrete delivery hose is in the area of the retaining bracket to the one carrying the retaining bracket. Arm fixed, so it can only be moved freely from the bracket. The delivery hose is connected to a multi-part pipeline, which is articulated where the arms are connected to one another are, and where the articulated arm on the turntable is mounted, is designed as a rotary tube, so in these areas in Direction of the respective pivot axes extends. By pivoting the arms provided against each other and opposite With the slewing ring, the retaining bracket can be used in a wide variety of ways

D'pl 'ng. Heinz Lesser, patent attorney

D - 8 MOndien 81, Cosimastrafc 81 Telephone: (0811) 48 38 20

Move positions. The length of the conveyor hose and the lengths of the arms assigned to the articulated boom define the working area that the free end of the delivery hose can brush.

The invention is based on the object of the articulated boom of the known To improve the type, in particular to ensure that the working area of such articulated booms can be enlarged, without it being necessary to increase the length of the arms in the collapsed state of the articulated boom or to increase extension pieces must be installed before pumping concrete is started after the mobile concrete pump has been transported.

To solve this problem it is proposed according to the invention to ensure that at least one of the arms of the articulated boom is changeable. It is most useful to use the Conveying hose carrying Ann to be extended, whereby It is also considered expedient within the scope of the invention to have a curved arm at the free end of this extensible arm Provide retaining bracket for the delivery hose. Although an extendable arm also consists of side by side, may consist of files guided against each other, it is recommended that it consist of at least two telescopically movable against each other To let parts exist. Whether the extension of the arm or arms is gradual, for example by means of a breadboard, Or continuously, for example by clamping devices or the like., Is in itself just as unimportant as the type of Actuation that can be done by hand or by a hydraulic device.

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Dipl. Ing. Heim Lesjet, patent attorney

D - 8 Munich 81, Cosimastro & e 81 Telephone: (0811) 48 38 20

The invention is illustrated schematically with the aid of one in the drawing illustrated »η exemplary embodiment explained below. It shows

Fig. 1

Fig. 2

Fig. 3

Fig. 4

a side view of a concrete pump on a self-propelled chassis with a folded articulated boom, which is provided with an extendable arm its extended position is shown in dashed lines -, the concrete pump according to Fig. 1, the articulated boom in one of several possible working positions is arranged, the extended position of one arm is shown in dashed lines, an enlarged partial side view of the extendable arm, its free end with a retaining bracket is provided, in two positions, a section along the line IV-IV of FIG. 3.

The concrete pump 1 with the filling funnel 2 has drive and control means housed in a cabinet 3 and a type Control panel 4 arranged on a vehicle 5, so that the concrete pump can be moved at any time, especially on construction sites can. An articulated boom 7, which consists of two arms 8 and 9, is articulated to the concrete pump via a turntable 6. Of the Arm 8 can be pivoted and fixed about a horizontal axis 10 and arm 9 about a horizontal axis 10 '. Because the slewing ring 6 can be rotated and fixed about a vertical axis 11, the working range of the articulated jib can be set. From the concrete pump 1, a pipe 12 first leads to Head 13 of the turntable 6, which they use a swivel and

Dipl.-Ing. Heinz Lesjer. Patent attorney

D - 8 Mündien 81. Cosimastrafce 81 Telephone: (ΟβΠ) 48 38 20

a rotary member penetrates, then parallel to the arm 8 to a further rotary tube, which is arranged coaxially to the axis 10 ', and then runs parallel to the arm 9. At the end of this pipeline, a delivery hose 15 is connected at 14, which through a curved bracket 16 is supported.

According to the invention, at least one of the arms 8 or 9 is now designed to be extendable. In the case shown, there is an extendable one Arm 9 consists of two parts that can be moved telescopically towards one another, i.e. another part 9 'is guided in arm 9, at the free end of the bracket 16 is fixed. This makes it possible to considerably increase the working area of the concrete pump enlarge (Fig. 1 and 2). In the exemplary embodiment it is assumed that the arm 9 is extended by hand. Accordingly the setting of the sections 9 and 9 'can also be done by hand. Both sections here have bores or the like through which a bolt or the like for setting the selected extension length can be plugged (Fig. 3).

Since the conveyor hose IS slides on the bracket 16 when If the arm 9 is extended, it is advisable to use roller rollers on the retaining bracket 16 to reduce the friction between these parts Od. Like. 17 to be provided (Fig. 3 and 4).

Claims (1)

Dipl. Ing. Η · ίηΐ L «u« r. Patent attorney D - 8 ΜθηΑ · η 81. Coiimorfrofc * 81 T «Ufon: (0811) 48 38 20 PROTECTION CLAIMS Articulated boom for movable concrete pumps, which is arranged on a turntable and has at least two _{arms which can be pivoted relative to one another uiiu 5} , _s i -n over the turntable for holding a concrete delivery hose connected to a pipeline, characterized in that at least one (9) of the arms (8 , 9) is renewable. Articulated boom according to claim 1, characterized in that that the arm (9) carrying the concrete conveyor hose (15) ve rl ^ nge rba r is. 3. articulated boom according to claim 1 or 2, characterized gekennze ¹ HNET that each verlangerbare arm (8,9) consists of at least two telescopically mutually movable parts (9,9 ') 4. Articulated boom according to one or more of claims 1 to 3, marked dun !, tlejm setting the against each other moveable 1 p.ls'uicke (9, Q 'ι serving means ¹ V articulated boom according to one or more of claims 1 to 4, with a curved ilaltebügel for the concrete delivery hose at the free end of the e.inen arm, characterized in that with lengthened ba rer training of the with the curved retaining bracket U 6) provided Army (9) on the retaining bracket roller wheels /. ". '■ or the like. Are provided.