Cantilever for a utility vehicle

Abstract

A cantilever includes a spar connected rotatably about a rear fixed axis to a fastening device for a vehicle, a tool lever connected rotatably about a front fixed axis to the spar, a deflecting triangle connected rotatably about a central fixed axis to the spar, a rear strut connected rotatably about a first strut pivot axis to the fastening device and rotatably about a second strut pivot axis to the deflecting triangle, a front strut connected rotatably about a third strut pivot axis to the deflecting triangle and rotatably about a fourth strut pivot axis to the tool lever. The rear and the central fixed axis span a first plane. The rear strut intersects the first plane. The central and the front fixed axis span a second plane. The front strut intersects the second plane.

Claims

1. A cantilever (1), for a vehicle, the cantilever comprising: a fastening device (5) that fastens the cantilever to the vehicle, the fastening device including a rear fixed axis (4) and a first strut pivot axis (12); a spar (3) having a front end and a rear end, the rear end of the spar being connected so as to rotate around the rear fixed axis (4) with the fastening device (5), the spar having a sharp bend (22) located between the front end and the rear end, the sharp bend (22) having an inner side and an outer side, the front end of the spar including a front fixed axis (7); a deflecting triangle (8) located in an area of the sharp bend (22), the deflecting triangle (8) including a central fixed axis (9), a second strut pivot axis (13), and a third strut pivot axis (15), the deflecting triangle (8) being connected so as to rotate around the central fixed axis (9) with the spar (3); a tool lever (6) connected so as to rotate around the front fixed axis (7) with the spar (3), the tool lever (6) including a fourth strut pivot axis (16); a rear strut (11) connected so as to rotate around the first strut pivot axis (12) with the fastening device (5) and so as to rotate around the second strut pivot axis (13) with the deflecting triangle (8); and a front strut (14) connected so as to rotate around the third strut pivot axis (15) with the deflecting triangle (8) and so as to rotate around the fourth strut pivot axis (16) with the tool lever (6), wherein the rear fixed axis (4) and the central fixed axis (9) span a first plane, wherein the rear strut (11) intersects the first plane, wherein the central fixed axis (9) and the front fixed axis (7) span a second plane, wherein the front strut (14) intersects the second plane, wherein the central fixed axis (9) is arranged at a first distance from the inner side of the sharp bend (22), wherein the second strut pivot axis (13) is at a second distance from the inner side of the sharp bend (22), the third strut pivot axis (15) is arranged at a third distance from the inner side of the sharp bend (22), wherein the first distance is less than the second distance and the first distance is less than the third distance so that the second and third strut pivot axes (13, 15) are arranged at a greater distance from the inner side of the sharp bend than the first distance at which the central fixed axis (9) is arranged from the inner side of the sharp bend, and wherein the rear and front struts (11, 14) are arranged entirely inside the spar (3).

2. The cantilever (1) according to claim 1, wherein a tool guide (18) is arranged on the tool lever (6).

3. A vehicle comprising at least one cantilever (1) according to claim 1.

4. The cantilever (1) according to claim 1, wherein the deflecting triangle (8) is arranged inside the spar (3).

5. The cantilever (1) according to claim 1, wherein the tool lever (6) is arranged essentially half outside and half inside the spar (3).

6. The cantilever (1) according to claim 1, wherein the front strut (14) has a tool drive (17), and operation of the tool drive (17) changes a length of the front strut (14).

7. A cantilever (1), for a vehicle, the cantilever comprising: a fastening device (5) that fastens the cantilever to the vehicle, the fastening device including a rear fixed axis (4) and a first strut pivot axis (12); a spar (3) having a front end and a rear end, the rear end of the spar being connected so as to rotate around the rear fixed axis (4) with the fastening device (5), the spar having a sharp bend (22) located between the front end and the rear end, the sharp bend (22) having an inner side and an outer side, the front end of the spar including a front fixed axis (7); a deflecting triangle (8) located in an area of the sharp bend (22), the deflecting triangle (8) including a central fixed axis (9), a second strut pivot axis (13), and a third strut pivot axis (15), the deflecting triangle (8) being connected so as to rotate around the central fixed axis (9) with the spar (3); a tool lever (6) connected so as to rotate around the front fixed axis (7) with the spar (3), the tool lever (6) including a fourth strut pivot axis (16); a rear strut (11) connected so as to rotate around the first strut pivot axis (12) with the fastening device (5) and so as to rotate around the second strut pivot axis (13) with the deflecting triangle (8); and a front strut (14) connected so as to rotate around the third strut pivot axis (15) with the deflecting triangle (8) and so as to rotate around the fourth strut pivot axis (16) with the tool lever (6), wherein the rear fixed axis (4) and the central fixed axis (9) span a first plane, wherein the rear strut (11) intersects the first plane, wherein the central fixed axis (9) and the front fixed axis (7) span a second plane, wherein the front strut (14) intersects the second plane, wherein the central fixed axis (9) is arranged at a first distance from the inner side of the sharp bend (22), wherein the second strut pivot axis (13) is at a second distance from the inner side of the sharp bend (22), the third strut pivot axis (15) is arranged at a third distance from the inner side of the sharp bend (22), and wherein the first distance is less than the second distance and the first distance is less than the third distance so that the second and third strut pivot axes (13, 15) are arranged at a greater distance from the inner side of the sharp bend than the first distance at which the central fixed axis (9) is arranged from the inner side of the sharp bend, wherein the deflecting triangle (8) is arranged entirely inside the spar (3).

8. The cantilever (1) according to claim 7, wherein the tool lever (6) is arranged essentially half outside and half inside the spar (3).

9. The cantilever (1) according to claim 7, wherein the front strut (14) has a tool drive (17), and operation of the tool drive (17) changes a length of the front strut (14).

10. A vehicle comprising at least one cantilever (1) according to claim 7.

11. The cantilever (1) according to claim 7, wherein the rear and front struts (11, 14) are arranged essentially inside the spar (3).

Description

(1) Below, a preferred embodiment of the invention is described in more detail based on the drawings. Here:

(2) FIG. 1 shows a section through a cantilever 1 with a tool 2, and

(3) FIG. 2 shows the cantilever with connecting lines and longitudinal axes depicting the invention in schematized form.

(4) The cantilever 1 shown in FIG. 1 with a tool 2 has a spar 3, which is used both as a carrier for various elements of the cantilever and as a lining of the cantilever. The spar 3 is connected so as to rotate around a rear fixed axis 4 with a fastening device 5. With the fastening device 5, the cantilever 1 can be fastened to a vehicle. Of course, embodiments are also conceivable in which the fastening device 5 is a more integral component of the utility vehicle. At the other end of the spar 3, a tool lever 6 is connected so as to rotate around a front fixed axis 7 with the spar 3. In a central area of the spar 3, a deflecting triangle 8 is arranged. The deflecting triangle 8 is connected so as to rotate around a central fixed axis 9 with the spar 3. A rear strut 11 is connected so as to rotate around a first strut pivot axis 12 with the fastening device 5 and so as to rotate around a second strut pivot axis 13 with the deflecting triangle 8. A front strut 14 is connected so as to rotate around a third strut pivot axis 15 with the deflecting triangle 8 and so as to rotate around a fourth strut pivot axis 16 with the tool lever 6. In the depicted embodiment, the front strut 14 has a tool drive 17, via which the length of the front strut 14 can be changed. Thus, the position of the tool 2 can be changed via the tool lever 6. In the depicted embodiment, in this connection, a tool guide 18 is connected so as to rotate around a guide pivot axis 19 with the tool lever 6. In order to move the spar 3 relative to the vehicle or the fastening device 5, a lifting drive 21 is provided.

(5) It is clear that the rear fixed axis 4 in the depicted orientation of the cantilever 1 lies above the first strut pivot axis 12, and the central fixed axis 9 lies below the second strut pivot axis 13. This is accomplished in that the deflecting triangle 8, unlike in the state of the art, is arranged inversely in the spar 3. The deflecting triangle 8 is thus located specifically in the area of a sharp bend 22 of the spar 3, as is common in the state of the art. However, the central fixed axis of the deflecting triangle 8 is arranged in the area of an inner side of the sharp bend 22.

(6) The basic crosswise arrangement of the struts according to the invention is illustrated in more detail in FIG. 2 with reference to the fixed axes. Longitudinal axes of the struts 11, 14, depicted symbolically in each case by dotted lines 23, 24, are shown by the rear and front struts 11, 14. In addition, dashed-dotted connecting lines 25, 26 are indicated between the fixed axes 4, 7, 9. In this case, a rear dashed-dotted connecting line 25 symbolically shows a first plane that is spanned by the rear fixed axis 4 and the central fixed axis 9. A front dashed-dotted line 26 symbolically shows a second plane that is spanned by the central fixed axis 9 and the front fixed axis 7.

(7) It is clear that the rear strut 11 that is depicted by the rear dotted line 23 intersects the first plane and that the front strut 14, which is symbolically depicted by the front dotted line 24, intersects the second plane.