EP0070585A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Mower
Assignee: Multinorm BV
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Filing: 1982-06-29
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Granted: —
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Expires: 2002-06-29
Abstract
Abstract A device for mowing agricultural crops, particularly grass, mainly comprising a continuous main beam (1) bearing a common main drive and a plurality of housings fastened to the front side of said beam (1), each accomodating an intermediate drive to an upstanding rotary shaft for a cutting member (3), wherein each housing is further provided with a freely rotatable member (52) bearing on the ground, and wherein the cutting members are connected through a safety clutch with the rotary shaft so that damage of the transmission gears in the drive due to jamming of the cutting member can be avoided, an undisturbed rearward transport of the crop is ensured and a free, overlapping moving region between two adjacent cutting members is obtained.
Inventors
- 👤 Hermanus Hendrik Vissers
- 👤 Hendrikus Cornelis Van Staveren
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 14:01
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/82; A01D34/828; A01D34/64; A01D34/66; A01D34/664
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
99 words
A device for mowing agricultural crops, particularly grass, mainly comprising a frame movable across the field carrying a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated by a common mechanical main drive about standing shafts, the foremost boundary rim of the cutter bar being set back between the cutting members in order to obtain a free, overlapping mowing region between two neighbouring cutting members characterized in that at two or more cutting members the cutter bar is provided with a member bearing on the ground.
Claim 2
Independent Claim
99 words
A device for mowing agricultural crops, particularly grass, mainly comprising a frame movable across the field carrying a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated by a common mechanical main drive about standing shafts, the foremost boundary rim of the cutter bar being set back between the cutting members in order to obtain a free, overlapping mowing region between two neighbouring cutting members characterized in that at two or more cutting members the cutter bar is provided with a member bearing on the ground.
Claim 3
Dependent Claim
32 words
A device as claimed in claim 1, characterized in that said member has a circular shape and is arranged below the cutter bar so as to be freely rotatable about a shaft.
Claim 4
Independent Claim
33 words
A device as claimed in claims 1 and 2, characterized in that with respect to the direction of movement said shaft is located in front of the rotary shaft of the cutting member.
Claim 5
Independent Claim
103 words
A device for mowing agricultural crop, particularly grass, mainly comprising a frame which is movable across the field and which carries a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated about standing shafts by a common mechanical main drive, the foremost boundary rim of the cutter bar being set back between the cutting members in order to obtain a free, overlapping mowing region between two neighbouring cutting members characterized in that an intermediate drive is aranged between the common main drive and each rotary shaft of the cutting members.
Claim 6
Independent Claim
103 words
A device for mowing agricultural crop, particularly grass, mainly comprising a frame which is movable across the field and which carries a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated about standing shafts by a common mechanical main drive, the foremost boundary rim of the cutter bar being set back between the cutting members in order to obtain a free, overlapping mowing region between two neighbouring cutting members characterized in that an intermediate drive is aranged between the common main drive and each rotary shaft of the cutting members.
Claim 7
Dependent Claim
44 words
A device as claimed in claim 4 characterized in that the cutter bar is formed by an uninterrupted main beam and housings for each cutting member fastened to the front side and accomodating the intermediate drive and the rotary shaft of the cutting member.
Claim 8
Dependent Claim
48 words
A device as claimed in claim 4 characterized in that the cutter bar is formed by a main beam composed of segments adapted to be coupled with one another, all of which or a number thereof carry each a housing holding the rotary shaft and the intermediate drive.
Claim 9
Independent Claim
25 words
A device as claimed in claims 4 to 6, characterized in that the main drive extends outside the main beam and between the neighbouring housings.
Claim 10
Dependent Claim
24 words
A device as claimed in claim 7, characterized in that the main drive between the housings is provided with shaft portions disengagable by displacement.
Claim 11
Independent Claim
30 words
A device as claimed in claims 4 to 8, characterized in that the main and intermediate drives and/or the intermediate drive - rotary shaft are formed by gear wheel shafts.
Claim 12
Dependent Claim
25 words
A device as claimed in claim 6 characterized in that the angle between the rotary shaft and the intermediate driving shaft is larger than 90°.
Claim 13
Independent Claim
48 words
A device as claimed in anyone of claims 9 to 10 characterized in that the gear wheels are bevel gear wheels, and the vertex of the gear wheel of the intermediate shaft near the main drive is larger than that near the rotary shaft of the cutting member.
Claim 14
Independent Claim
19 words
A device as claimed in anyone of the claims 4-11, characterized in that the intermediate drive contains a timingbelt.
Claim 15
Independent Claim
36 words
A device as claimed in anyone of the preceding claims, characterized in that a detachable,plate-shaped member extending away from the retracted front rim of the cutter bar is arranged in the space between the rotary shafts.
Claim 16
Independent Claim
70 words
A device for mowing agricultural crops, particularly grass, mainly comprising a frame which can be moved across the field and which carries a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated about standing shafts by a common mechanical main drive characterized in that the cutting members are connected with the rotary shafts through a safety clutch.
Claim 17
Independent Claim
70 words
A device for mowing agricultural crops, particularly grass, mainly comprising a frame which can be moved across the field and which carries a cutter bar extending transversely of the direction of movement near the ground and having at least two cutting members to be rotated about standing shafts by a common mechanical main drive characterized in that the cutting members are connected with the rotary shafts through a safety clutch.
Claim 18
Dependent Claim
26 words
A device as claimed in claim 14 characterized in that the safety clutch is formed by two or more shear pins interconnected by a common carrier.
Claim 19
Dependent Claim
25 words
A device as claimed in claim 14 characterized in that the safety clutch is formed by one or more spring-loaded snap bodies, for example, balls.
References Cited (Backward Citations)
No citation records indexed.
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