Operating machine with improved stabilisers

Patent metadata

Field	Value
Publication number	US-11767206-B2
Application number	US-202017118774-A
Country	US
Kind code	B2
Filing date	Dec 11, 2020
Priority date	Dec 12, 2019
Publication date	Sep 26, 2023
Grant date	Sep 26, 2023

Abstract

Described is a self-propelled operating machine ( 1 ) equipped with stabilizers which comprise a front stabilizing unit ( 2 ), mounted on a chassis ( 100 ) of the machine ( 1 ), which is movable on wheels and is fitted with a driver's cab ( 12 ) for an operator (O).
The stabilizing unit ( 2 ) comprises a supporting frame ( 24 ) and two stabilizing arms ( 21, 22, 23 ), each of which includes a first segment ( 21 ) hinged to the frame ( 24 ) by a pin ( 25 ) located at a lower side of the first segment ( 21 ).

First claim

The invention claimed is:

1. A self-propelled operating machine ( 1 ) equipped with stabilizers which comprise at least a front stabilizing unit ( 2 ), mounted on a chassis ( 100 ) of said machine ( 1 ), which is movable on wheels and is fitted with a driver's cab ( 12 ) for an operator (O), wherein said stabilizing unit ( 2 ) comprises a supporting frame ( 24 ) and two stabilizing arms ( 21 , 22 , 23 ), each of which includes a first segment ( 21 ) hinged to said frame ( 24 ) by means of a pin ( 25 ) located at a lower side of said first segment ( 21 );
wherein the above-mentioned first segment ( 21 ) is also hinged at an end of a first linear actuator ( 3 ) designed to rotate the first segment ( 21 ) about the first pin ( 25 ) to allow the lowering or the raising of the respective stabilizing arm ( 21 , 22 , 23 );
wherein each first actuator ( 3 ) is connected, by a second hinge ( 31 ), to the supporting structure ( 24 ) and, through a third hinge ( 32 ), to the first segment ( 21 ) of the respective arm ( 21 , 22 , 23 );
wherein the first and the third hinges ( 25 , 32 ) are positioned in two distinct points of the length of the first segment ( 21 ), the first hinge ( 25 ) being closer to a proximal end of the first segment ( 21 ) and the third hinge ( 32 ) closer to a distal end thereof;
wherein the stabilizing arms ( 21 , 22 , 23 ) are movable between a raised position, in which they are distanced from the ground and lowered operating positions, in which they rest on the ground;

characterized in that, in said raised operating position of the stabilizing arms ( 21 , 22 , 23 ), the first actuators ( 3 ) are arranged oblique with respect to a plane parallel to a ground, so as to form with said plane an angle greater than zero and less than thirty-five degrees.

2. The machine ( 1 ) according to claim 1 , wherein each arm ( 21 , 22 , 23 ) comprises a second segment ( 22 ) slidably inserted in the first segment ( 21 ) and actuated by a second actuator designed to allow the extension and retraction of the arm ( 21 , 22 , 23 ).

3. The machine ( 1 ) according to claim 1 , wherein the stabilizers are of the scissor type and the stabilizing unit ( 2 ) has two arms ( 21 , 22 , 23 ) designed to move in parallel planes.

4. The machine according to claim 1 , wherein said angle is substantially equal to 20 degrees.

5. The machine according to claim 1 , wherein, in the rest configuration, the arms ( 21 , 22 , 23 ) are crossed with each other.

6. The machine ( 1 ) according to claim 1 , wherein said frame ( 24 ) includes an upper oblique side ( 243 ) relative to the central axis of the chassis ( 100 ) of the machine ( 1 ) and inclined downwards in the front direction.

7. The machine ( 1 ) according to claim 1 , wherein said frame ( 24 ) includes at least two parallel main plates ( 241 , 242 ) between which the above-mentioned first segments ( 21 ) are positioned.

8. The machine ( 1 ) according to claim 6 , wherein said frame ( 24 ) includes at least two parallel main plates ( 241 , 242 ) between which the above-mentioned first segments ( 21 ) are positioned, and wherein said upper side ( 243 ) connects the tops of said main plates ( 241 , 242 ).

Assignees

• Manitou Italia Srl

Inventors

• Iotti Marco

Classifications

• B66F9/07559 Primary

  Stabilizing means · CPC title

• B60S9/12

  of telescopic type · CPC title

• B66F9/0655

  with a telescopic boom · CPC title

• B66F9/06 Primary

  movable, with their loads, on wheels or the like, e.g. fork-lift trucks (vehicle aspects B60 - B62; vehicles predominantly for transporting loads and modified to facilitate loading or unloading B60P1/00; low-lift hand trucks for transporting goods B62B3/06) · CPC title

• B66C23/80 Primary

  hydraulically actuated · CPC title