US4723867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for cutting road surfaces
Assignee: Wirtgen GmbH
•
Filing: 1986-07-28
•
Granted: 1988-02-09
•
Expires: 2006-07-28
Abstract
Abstract In a machine for cutting road surfaces, with an undercarriage having its own drive, with a cutting device arranged on it and having at least one cutting roller which extends transversely relative to the direction of travel and around which the cut material runs so as to be conveyed forwardly in the direction of travel, and with a conveyor device in the manner of a belt conveyor, arranged on the undercarriage, for transporting the cut material out of the cutting region to a collecting point, particularly onto a motor truck adjacent to the undercarriage, the conveyor device is arranged in front of the cutting device in the direction of travel at a passage orifice provided in a cover, and a material-collecting flap is arranged behind the cutting device in the direction of travel. The cover, the conveyor device receiving the cut material and the material-collecting flap are each fastened pivotably to the undercarriage, so that the cutting device is easily accessible in order to exchange the cutters.
Inventors
- 👤 Reinhard Wirtgen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:15
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/08; E01C23/085; E01C23/088
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
197 words
A machine for cutting road surface, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel, a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor device (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, wherein there is, in front of the cutting device (8) in the direction of travel, a cover (16) having a material passage orifice (33), at which the conveyor device (13) is arranged, and means mounting the cover (16) together with the conveyor device (13) so that the cover and the conveyor device can be swung away forwardly.
Claim 2
Dependent Claim
197 words
A machine for cutting road surface, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel, a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor device (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, wherein there is, in front of the cutting device (8) in the direction of travel, a cover (16) having a material passage orifice (33), at which the conveyor device (13) is arranged, and means mounting the cover (16) together with the conveyor device (13) so that the cover and the conveyor device can be swung away forwardly.
Claim 3
Dependent Claim
33 words
A machine as claimed in claim 1, wherein a regulating cylinder (23) engaging the cover (16) via an arm (22) is provided for pivoting away the cover (16) and the conveyor device (13).
Claim 4
Dependent Claim
28 words
A machine as claimed in claim 1, wherein the material-collecting flap (24) is provided with a hard-metal reinforcement (25) on an edge thereof adjacent to the cut surface.
Claim 5
Dependent Claim
47 words
A machine as claimed in claim 1, wherein, to adjust the height of the material-collecting flap (24), the flap has two lateral coaxial bearing journals (26), each of which engages into an approximately vertical guide groove (31) in a bearing cheek (28) fastened to the undercarriage (1).
Claim 6
Dependent Claim
69 words
A machine as claimed in claim 4, additionally comprising a lateral stop for the material-collecting flap (24) on one of the bearing cheeks (28) adjacent an upper region of the material-collecting flap (24) on the side facing the cutting device (8), and a lifting cylinder (30) with a moveable element (29) thereof which is articulated on a lower part of the material-collecting flap (24), for pivoting the materialcollecting flap.
Claim 7
Dependent Claim
197 words
A machine for cutting road surfaces, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel, a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor devcie (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, wherein, to adjust the height of the material-collecting flap (24), the flap has two laterial coaxial bearing journals (26), each of which engages into an approxiamtely vertical guide groove (31) in a bearing cheek (28) fastened to the undercarriage (1), and wherein each guide groove (31) merges at its top end into a curved groove part (27).
Claim 8
Dependent Claim
197 words
A machine for cutting road surfaces, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel, a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor devcie (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, wherein, to adjust the height of the material-collecting flap (24), the flap has two laterial coaxial bearing journals (26), each of which engages into an approxiamtely vertical guide groove (31) in a bearing cheek (28) fastened to the undercarriage (1), and wherein each guide groove (31) merges at its top end into a curved groove part (27).
Claim 9
Dependent Claim
94 words
A machine for cutting road surfaces, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel,
Claim 10
Dependent Claim
94 words
A machine for cutting road surfaces, comprising an undercarriage having its own drive, a cutting device arranged on the undercarriage and having at least one cutting roller which extends transversely relative to a direction of travel and which conveys cut material forwardly in the direction of travel, a conveyor device in the form of a belt conveyor arranged on the undercarriage for transporting the cut material out of a cutting region to a collecting point, wherein the conveyor device (13) is arranged in front of the cutting device (8) in the direction of travel,
Claim 11
Dependent Claim
112 words
a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor device (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, and wherein there is, in front of the cutting device (8) in the direction of travel, a cover (16) having a material passage orifice (33), at which the conveyor device (13) is arranged and wherein, for vertically adjusting the conveyor device (13), the end (15) thereof receiving the cut material is connected via articulated levers (19, 20) to a pivot pin distant from a conveyor device.
Claim 12
Dependent Claim
112 words
a material-collecting flap (24) is located behind the cutting device (8) in the direction of travel, an end (15) of the conveyor device (13) receiving the cut material and the material-collecting flap (24) are each fastened to the undercarriage (1) so as to be vertically adjustable, and wherein there is, in front of the cutting device (8) in the direction of travel, a cover (16) having a material passage orifice (33), at which the conveyor device (13) is arranged and wherein, for vertically adjusting the conveyor device (13), the end (15) thereof receiving the cut material is connected via articulated levers (19, 20) to a pivot pin distant from a conveyor device.
References Cited (Backward Citations)
US1449075A
Cited
US2546907A
Cited
US4037981A
Cited
US4041623A
Cited
US4186968A
Cited
US4193636A
Cited
US4325580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-08 | 1991-08-10 | 1992-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-08 | 1995-08-10 | 1996-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-08 | 1999-08-10 | 2000-02-09 | $7700.00 | Window Closed / Lapsed |