A mobile elevator with backhoe

Description

[0001] The invention relates to a mobile elevator with backhoe according to the preamble of claim 1. Such a mobile elevator is known from US-A-4026379.

[0002] Basically the invention is a multifunction machine of the type usually comprising a tractor equipped with a lifting device (or mechanical shovel) operating frontally and an articulated-arm hoe operating from the back.

[0003] In particular, for those machines which use a lifting device, comprising a telescopic manoeuvring arm located in median position on the frame of the vehicle, the problem exists of where best to position the driver-operator so that he can both drive the machine and operate the articulated-arm backhoe. Since for the driving of the vehicle and for the manoeuvring of the lifting mechanism a frontal driving position is required, while for the backhoe manoeuvring a more posterior position is necessary to allow the operator to control directly the entire working-field of the backhoe, two driving positions are envisaged. In the prior art this has obliged driver-operators to get out of the vehicle in order to take up the second position.

[0004] The present invention, as described in the claims which follow, seeks to obviate this inconvenient existing in the prior art.

[0005] The invention further proposes to realise a new mobile elevator with backhoe in which the positioning of the various chassis parts, the telescopic lifting arm and the hoe permit of bettering the conditions of visibility in all operating conditions with repect to the prior art.

[0006] Advantage of the invention is the fact that it offers a comfortable and safe driving position.

[0007] Further characteristics and advantages will better appear in the detailed description which follows of a preferred but not exclusive embodiment, illustrated here purely in the form of a non-limiting example in the diagrams, where:

• Figure 1 is a vertical-elevation lateral view;
• Figure 2 is a schematic view from above of Figure 1.

[0008] With reference to the diagrams, 1 shows a chassis mounted on two wheel pairs 2 and 3, on which chassis 1 a motor-transmission group is mounted transversally (not illustrated in diagram). The chassis 1 is formed in such a way as to present in its central anterior part a median longitudinal channel 14 disposed according to the longitudinal axis of the said chassis 1. The median longitudinal channel 14 is formed so that it can house, at least in part, a telescopic manoeuvring arm 4 which at its free end is able to bear a fork-group or similar, in this instance a fork-group 5. The telescopic manoeuvring arm 4 is pivoted at its base, by means of a pivot 11 to the top of a support 10 located in central position to the posterior extremity of the median longitudinal channel 14. A backhoe (the whole assembly is indicated by 6) is posteriorly mounted to the chassis 1, which backhoe 6 is equipped with an articulated arm 15 at whose extremity a bucket 16 is arranged. The backhoe 6 is hydraulically activated, as is the telescopic manoeuvring arm 4. A cabin 7, arranged on the chassis 1, is L-shaped and comprises: a transversal part 8 positioned in the posterior area of the chassis 1 between the backhoe 6 and the support 10 and disposed parallel to the posterior axis of the vehicle; and a longitudinal part 9 positioned on one flank of the chassis 1 in such a way as to extend parallel to the flank of the median longitudinal channel 14. Tracks 13 are arranged in an L-shape on the floor of the cabin 7; a seat 12 is slidably mounted to said tracks 13 in the desired position. In particular, the tracks 13 are arranged so that the seat 12 can be slid into two positions, indicated in the illustrations by A and B, situated respectively in proximity to the controls 17 for the driving of the vehicle and the manoeuvring of the telescopic manoeuvring arm 4, and the controls 18 for the manoeuvring of the backhoe 6.

[0009] From each of the two positions indicated the operator sitting in the seat 12 enjoys an excellent view through the windows of the cabin 7.

[0010] The changing of the position of the seat 12 from position A to position B and viceversa can be effected very rapidly by the simple sliding of the seat 12 along the tracks 13, without the need for the operator to get out of the cabin.

Claims

1. Mobile elevator with backhoe comprising a chassis (1), mounted on wheel pairs (2) and (3), on which chassis (1) are mounted: a telescopic manoeuvring arm (4) able to bear at its free end a fork-group (5);
   which is located along the median longitudinal plane of the chassis (1) and hinged around a horizontal axis perpendicular to said longitudinal axis to the top of a support (10) situated in front of a cabin (7), for the operator; a backhoe (6) equipped with an articulated arm (15); characterized in that said cabin (7) is shaped with a transversal part (8) positioned in the posterior area of the chassis (1) parallel to the posterior axis of the vehicle; and with a longitudinal part (9) positioned on one flank of the chassis (1) ; said longitudinal part (9) being flanked by said telescopic manoeuvring arm (4), the support (10) of which is situated frontally to said transversal part (8) of said cabin (7); having internally to the cabin (7) a seat 12 for the operator which is slidable and at least horizontally positionable along tracks (13), which are arranged in an L-shape, from a laterally advanced position in the longitudinal part (9) of the cabin (7) to permit of guiding the manoeuvring of the telescopic manoeuvring arm (4), to a median posterior position to permit of manoeuvring the backhoe (6) and vice-versa.

2. Elevator as in claim 1, wherein said seat (12) is slidably mounted on tracks (13) arranged in an L-shape on the floor of the cabin (7); having means for the locking and unlocking of the seat (12) in any position along said tracks (13).

3. Elevator as in claim 1, wherein the top of the support (10) is located frontally to the transversal part (8) of said cabin (7), laterally to said longitudinal part (9) at a height which with respect to the cabin (7) does not obstruct the view of the operator; wherein said chassis (1) is conformed in such a way as to present a sort of median longitudinal channel (14) inside which the telescopic manoeuvring arm (4) is at least in part freely housable.

Ansprüche

1. Beweglicher Frontlader miteckbagger oder Rückhacke, bestehend aus:

- einem Fahrgestell (1), montiert auf Räderpaare (2) und (3); auf dem Fahrgestell (1) ist ein teleskopischer Manövrierarm (4) montiert, der an seinem freien Ende eine Gabelgruppe (5) trägt; dieser Manövrierarm (4) befindet sich entlang der Mittellängsebene des Fahrgestells (1) und ist rund um eine horizontale Achse eingehängt; diese Achse verläuft senkrecht zur genannten Längsachse bis zum Ende eines Halters (10), der sich gegenüber der Kabine (7) des Fahrzeugführer-Operateurs befindet;

- einer Rückhacke (6), ausgestattet mit einem Gelenkarm (15) und dadurch gekennzeichnet, daß die Kabine (7) mit einem Querteil (8) geformt ist, das im hinteren Bereich des Fahrgestells (1), parallel zur Hinterache des Fahrzeuges angebracht ist;

- einem Längsteil (9, angebracht an einer Flanke des Fahrgestells (1); das genannte Längsteil (9), ist flankiert durch den genannten, teleskopischen Manövrierarm (4) und dem Halter (10), der dem Querteil (8) der genannten Kabine (7) frontal gegenüberliegt;

- einem, im Innern der Kabine (7) angebrachten Fahrzeugführer-Operateur-Sitz (12), der gleitbar und wenigstens horizontal längs der Bahnen (13) einstellbar ist; die Bahnen (13) sind L-förmig angeordnet, und zwar von einer seitlichen Vorwärtsposition aus in den Längsteil (9) der Kabine (7), und dies, um die Führung der Verschiebungen des teleskopischen Manövrierungsarmes (4) in Richtung einer mittleren Rückposition zum Manövrieren der Rückhacke (6) und vice-versa zu ermöglichen.

2. Frontlader gemäß Anspruch 1), in welchem der erwähnte Sitz (12) gleitbar auf den Bahnen (13) montiert ist, und die L-förmig auf dem Boden der Kabine (7) angeordnet sind; es stehen Mittel zum Feststellen und Lockern des Sitzes (12) in jegliche Position längs der genannten Bahnen (13) zur Verfügung.

3. Frontlader gemäß Anspruch 1), in welchem das obere Ende des Halters (10) frontal zum Querteil (8) der Kabine (7), längsseitig zum genannten Längsteil (9) angebracht ist, und dies in einer Höhe entsprechend der Kabine (7), um die Sicht des Fahrzeugführers-Operateurs nicht zu beeinträchtigen; das Fahrgestell (1) ist auf solche Art und Weise gestaltet, um eine Art von Mittellängskanal (14) zu bilden, in dem der teleskopische Manövrierungsarm (4) wenigstens teilweise frei untergebracht werden kann.

Revendications

1. Un élévateur mobile avec une pelle rétro qui comprend un châssis (1) monté sur des paires de roues (2) et (3); sur ce châssis (1) sont montés:
un arbre qui se manoeuvre télescopiquement (4) et qui est à même de porter à son extrémité libre un groupe de fourches (5) ; cet arbre est placé le long du plan longitudinal médian du châssis (1) et il est pivoté autour d'un axe horizontal perpendiculaire audit axe longitudinal, sur le haut d'un support (10) situé en face de la cabine (7) par rapport à l'opérateur; une pelle rétro (6) équipée d'un bras articulé (15);
caractérisé en ce fait que la cabine (7) est formée avec une partie transversale (8) positionnée sur la surface postérieure du châssis (1) parallèle à l'axe postérieur du véhicule; et avec une partie longitudinale (9) positionnée sur un des flancs du châssis (1); ladite partie longitudinale (9) étant flanquée par ledit bras qui se manoeuvre télescopiquement (4) dont le support (10) est situé en face de ladite partie transversale (8) de ladite cabine (7); ayant à l'intérieur de la cabine (7) un siège (12) pour l'opérateur qui peut glisser et qui peut être positionné au moins horizontalement le long de chemins (13) qui sont disposés en forme de L, à partir d'une position latérale en avant dans la partie longitudinale (9) de la cabine (7) pour permettre de guider la manoeuvre de l'arbre (4) qui se manoeuvre télescopiquement (4), jusqu'à une position en arrière médiane pour permettre de manoeuvrer la pelle rétro (6) et vice-versa.

2. Un élévateur comme celui de la revendication 1, dans lequel ledit siège (12) est monté de telle sorte qu'il puisse glisser sur des chemins (13) disposés en forme de L sur le plancher de la cabine (7); ayant des moyens pour bloquer et débloquer le siège (12) dans n'importe quelle position le long desdits chemins (13).

3. Un élévateur comme celui de la revendication 1, dans lequel le haut du support (10) est placé en face de la partie transversale (8) de ladite cabine (7), latéralement à ladite partie longitudinale (9) à une hauteur qui, par rapport à la cabine (7), ne gêne pas la vue de l'opérateur; dans lequel ledit châssis (1) est formé de telle sorte qu'il présente une sorte de canal longitudinal médian (14) à l'intérieur duquel l'arbre qui se manoeuvre télescopiquement (4) peut au moins en partie être placé librement.

Drawing