Articulated Operating Arm and Mobile Apparatus with Improved Mounting of Control Member

Abstract

Articulated operating arm including at least a first articulation and a second articulation, which first articulation is connected for pivoting around a first axis to the second articulation. A control member is operative for the purpose of moving the second articulation relative to the first articulation, which control member has a first end coupled to a coupling structure which is configured to connect this first end for pivoting around a second axis to the second articulation, which second axis is parallel to the first axis. The second articulation includes an elongate structure and a wing; which elongate structure has a first end for connection to the first articulation, a second end and a side wall between the first and the second end; which wing is attached to the elongate structure. The coupling structure has a first end supported at the side wall and a second end supported by the wing.

1 . An articulated operating arm for a mobile apparatus, comprising at least two articulations and a control member; wherein the at least two articulations comprise a first articulation and a second articulation, which first articulation is connected for pivoting around a first axis to the second articulation, wherein the control member is operative for the purpose of moving the second articulation relative to the first articulation, which control member has a first end coupled to a coupling structure which is configured to connect the first end for pivoting around a second axis to the second articulation, which second axis is parallel to the first axis, wherein the second articulation comprises an elongate structure and a wing; which elongate structure has a first end for connection to the first articulation, a second end and a side wall between the first and the second end; which wing is attached to the elongate structure, and that the coupling structure has a first end which is supported at the side wall of the elongate structure and a second end which is supported by the wing. 
     
     
         2 . The articulated operating arm as claimed in  claim 1 , wherein the elongate structure comprises a hollow tube. 
     
     
         3 . The articulated operating arm as claimed in  claim 1 , wherein the wing has a first long side with an elongate portion attached to an upper side of the elongate structure, and a second free long side. 
     
     
         4 . The articulated operating arm as claimed in  claim 3 , wherein the elongate portion on the first long side of the wing forms a part of an upper side of a hollow tube. 
     
     
         5 . The articulated operating arm as claimed  claim 1 , wherein the wing is formed so as to extend at least partially over the coupling structure. 
     
     
         6 . The articulated operating arm as claimed in  claim 1 , wherein the second articulation comprises a connecting plate for connecting the second end of the coupling structure to the wing. 
     
     
         7 . The articulated operating arm as claimed in  claim 1 , wherein an extension piece oriented transversely of the elongate structure provided on the first end of the elongate structure, the extension piece being attached to the wing. 
     
     
         8 . The articulated operating arm as claimed in  claim 1 , wherein the wing has a width in a direction transversely of the elongate structure which is greater at the first end of the elongate structure than at the second end of the elongate structure. 
     
     
         9 . The articulated operating arm as claimed in  claim 1 , wherein the coupling structure comprises a pin, and that the first end of the control member is formed as a hollow shaft through which the pin protrudes. 
     
     
         10 . The articulated operating arm as claimed in  claim 9 , wherein the pin protrudes through an opening in the connecting plate. 
     
     
         11 . The articulated operating arm as claimed in  claim 1 , wherein the control member is configured to move the second articulation to a position against or adjacently of the first articulation, and that in the folded-up position of the articulated operating arm the wing extends partially over the control member in order to protect the control member. 
     
     
         12 . The articulated operating arm as claimed in  claim 1 , wherein the at least two articulations comprise a third articulation and that the second articulation is connected for pivoting around a third axis to the third articulation, and that a further control member is provided for the purpose of moving the third articulation relative to the second articulation, wherein at the first end of the elongate structure the further control member is connected for pivoting around a fourth axis to the second articulation, this fourth axis being parallel to the third axis, wherein the elongate structure is provided with an elongate recess provided adjacently of the wing and configured to partially receive the further control member. 
     
     
         13 . (canceled) 
     
     
         14 . The articulated operating arm as claimed in  claim 12 , wherein the further control member is configured to move the third articulation to a position against or adjacently of the second articulation, this-such that the articulated operating arm can be transformed into a single lifting arm. 
     
     
         15 . The articulated operating arm as claimed in  claim 1 , wherein the second articulation comprises a first hollow shaft part attached to the first end of the elongate structure, which first hollow shaft part is configured to realize the pivoting connection around the first axis between the preceding and the second articulation, and wherein the second articulation comprises a second hollow shaft part which is attached to the extension piece, which second hollow shaft part lies in line with the first hollow shaft part, wherein a shaft part is received in the first and the second hollow shaft parts for the purpose of realizing the pivoting connection around the first axis between the first and the second articulation. 
     
     
         16 . (canceled) 
     
     
         17 . (canceled) 
     
     
         18 . (canceled) 
     
     
         19 . The articulated operating arm as claimed in  claim 1 , wherein the elongate structure is a hollow tube which is provided on the inner side with reinforcements formed by additional material and/or plates which further transmit the forces acting on the pivoting connection between the first and second articulations into the second articulation. 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . A mobile apparatus comprising an articulated operating arm as claimed in  claim 1 , wherein the mobile apparatus comprises a main frame displaceable on displacing means and a sub-frame connected rotatably to the main frame, and that the articulated operating arm is connected to the main frame. 
     
     
         24 . (canceled) 
     
     
         25 . An articulated operating arm for a mobile apparatus, comprising at least two articulations and a control member; wherein the at least two articulations comprise a first articulation and a second articulation, which first articulation is connected for pivoting around a first axis to the second articulation, wherein the control member is operative for the purpose of moving the second articulation relative to the first articulation, wherein at least one conduit runs in the form of a loop from the first articulation to the second articulation, which loop is dimensioned such that it can become smaller or larger when the second articulation is moved respectively in the direction of the first articulation or away from the first articulation. 
     
     
         26 . The articulated operating arm as claimed in  claim 25 , wherein the first articulation is connected pivotally to the second articulation by means of a hollow shaft part, and that the at least one conduit runs from a side wall of the first articulation through the hollow shaft part to the second articulation. 
     
     
         27 . The articulated operating arm as claimed in  claim 25 , wherein the at least one conduit is attached to the first articulation and to the second articulation close to the first axis), and/or wherein the at least one conduit is attached against a side wall of the second articulation. 
     
     
         28 . (canceled) 
     
     
         29 . (canceled) 
     
     
         30 . (canceled) 
     
     
         31 . (canceled) 
     
     
         32 . (canceled) 
     
     
         33 . (canceled) 
     
     
         34 . The articulated operating arm as claimed in  claim 25 , wherein the at least two articulations comprise a third articulation, and that the second articulation is connected for pivoting around a third axis to the third articulation, and that a further control member is provided for the purpose of moving the third articulation relative to the second articulation, wherein the further control member is connected for pivoting around a fourth axis to the second articulation, this fourth axis being parallel to the third axis.