DE1484778A1 - Bucket excavator - Google Patents

Description

New file number: 'October 28, 1968 G / 2 ¹ P 14 84 778.0 A 1064 E

old file number:
S 89 205 V / 84d

S.I.M.I.T.

New documents for disclosure

! • irma SIMITSpA Grugliaaoo (Torino). Italy

Via Don Caustico

Machine for digging and lifting material.

The invention relates to a machine for excavating and Lifting material of the known type in which an articulated support arm with a grave shovel attached to it is provided, which again with the help of mechanical and / or hydraulic Means is movable in vertical planes.

There are already machines of this type known in which the ! Drag arm is composed of a number of individual parts, in particular from a first pivoting part articulated on the machine frame and a second part which is rod-shaped and is pivotably mounted on the first part and carries the digging shovel.

In the known machines this. Type forms the rod-shaped Part essentially an extension of the

Documents (Art. 7 Para. 2 No. 1 Clause 8 of the amendment nasa. V. -I . : ■■>

209,843 / 0147 bathroom original -2-

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mentioned support arm and the digging shovel is rigidly mounted on the same 'during the working stroke, d. H. just before adjustable to a specific swivel angle position. Therefore, with these machines depending on the type of work to be performed Work the rod-shaped part in the appropriate angular position attached so that the shovel makes a suitable stroke. However, this known arrangement of the parts is with the disadvantage νβ ^ μηάβη that the machine before the start the work must be adjusted according to the given working conditions, and also the stroke of the digging shovel can basically only be changed in a limited way.

The main purpose of the invention is now to provide a digging machine create that no longer has the aforementioned disadvantage and is advantageous in comparison with the already known Digging machines are particularly suitable for digging deep trenches that are somehow inclined, especially vertical and possibly have undercut walls. \

For this purpose a digging and material lifting machine is according to the invention with one of a plurality of parts and a pivotable one at its outermost end Support arm provided with a grave shovel, the special feature of which is that the support arm is three together

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has articulately connected links that are mutually exclusive are pivotally arranged, the third link of the £ ragarmes the digger carries that of the third mentioned Link Mn can be pivotably controlled. The pivoting of the individual SJeile of the support arm against each other can be done with any suitable actuating means can be achieved, but preferably according to the invention are hydraulic Lifting devices used. With such an arrangement, as described in more detail below, the articulated Iragarm control the digging shovel so that even in the vertical plane, which is directly in front of the machine, worked downwards can be what makes the excavation work again particularly thereby makes it easier that the machine does not have to be constantly adjusted.

Further features and advantages of the present invention emerge from the following description of an exemplary embodiment which is shown in the drawing?
Show it:

Fig. I is an elevation of the inventive

Machine in use to excavate a

deep trench and
3? Ig. Figure 2 shows a similar elevation of the machine

another application. '■ - ^: -'--'^{<AiiL> y ;} ; "■

■■ -. · '"■.. - ,. _ -4- 209843 / 0U7

- 4 - 28.10.1968

A digging machine according to the invention essentially has a lower chassis 1 with wheels, preferably connected by a caterpillar, and one resting on it Turntable 2 for pivoting in the horizontal plane on. Furthermore, an upper frame 3 is provided on which the cab 4 for the driver is mounted and a motor housing are arranged, which contains the drive motor of the machine. On the more often frame part 3 there is also one in its entirety articulated with 6 designated support arm, at the outer end of the digging shovel 7 is attached.

The support arm 6 is composed of members which are hingedly connected to one another according to the invention at at least two articulation points 8 and 9, apart from the articulation point 10 of the support arm on the upper frame part 3 of the Machine. This support arm therefore consists of at least three members 11, 12 and 13 which are hinged to one another and can be pivoted independently of one another in a vertical plane. These members 11, 12 and 13 of the support arm can thereby control the movement of the digging shovel 7 with the aid of hydraulic lifting devices are pivoted against each other, each of which the cylinder on the one link and the piston rod on the adjoining it, the next link is hingedly attached. The support arm 6 in its entirety can also be used with the help another larger hydraulic lifting device 15

2098A3 / 0U7 _{B. n}

BAD ORJG? M _al

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be swiveled out, the cylinder on the upper part 3 of the frame articulated, while the piston rod on one of the first link 11 of the arm transversely projecting arm 11a articulated attacks.

Of course, the grave shovel 7 is also known per se Way articulated on the outermost link 13 of the! Ragarmes 6 and can with the help of a hydraulic lifting device 16 be pivoted. With such an arrangement of the individual parts 11, 12 and 13, the digging shovel 7 can be controlled in this way be that it performs the most varied of work movements, the path of which is in the form of an arc of a circle as well as a straight line enables.

In particular, the digging shovel 7, as from Pig. 1 can also be moved along a vertical plane P, which extends down immediately in front of the machine itself, which is known to involve digging deep trenches favored. Furthermore, there is, as can be seen from Fig. 2, the possibility of the support arm 6 to perform a Bend digging work several times so that the digging shovel 7 can work at various angles of inclination, which makes digging trenches, canals and the like much easier.

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It turns out that the invention is not limited to the embodiment described here, but allows further embodiments that are known to those skilled in the art on the basis of the present description and the now the following claims are accessible.

209843/0147

Claims (3)

- 7 - ■ October 28, 1968 Pat ent an's ρ riic he - Digging and material lifting machine with a multi-link support arm which is pivotably mounted on the support frame and which carries at its outer end a likewise pivotable * ridge) shovel, characterized in that the support arm (6) consists of three articulated members (11, 12) which are hinged to one another and pivotable to one another , 13), the digging shovel (7) being articulated on the outermost link (13) and pivotably mounted in relation to the link (13). 2. Digging and lifting machine according to claim 1, characterized in that that the innermost and shortest link (11) of the The support arm (6) can be pivoted about a horizontal axis (10) which is only slightly above the bearing plane of the known in Way about a vertical axis pivotable support frame (3) lies. 3. digging and lifting machine according to claims 1 and 2, characterized in that the members (11, 12, 13) of the Support arm (6) by at least one independent, hydraulic lifting device (14) for actuating the digging shovel (7) are pivotable against each other. 209 843/0 U7