Valve fastening means
AssigneeNordhydraulic AB
InventorBertil Lundgren
Life of this patent
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Abstract
A valve fastening element (1) for attaching a hydraulic valve (2) to a tractor (13). The valve fastening element (1) includes a tractor part (1a) adapted to be attached on the tractor and a valve part (1b adapted for direct assembly of the valve (2), wherein the valve (2) includes at least two screw holes (10,11,12), each adapted to receive a screw (3,4,5). The valve part (1b) of the valve fastening element (1) includes at least two slits (6,7,8), of which at least a first slit (6,8) includes an opening (6a,8a) adapted to let the head of the screw pass, and all slits include a groove (6b,7,8b,8c) that is sufficiently narrow to prevent the head of the screw (3,4,5) from passing but sufficiently wide to allow the thread of the screw (3,4,5) to pass.
Claims20
A valve fastening means (1) for attachment of a hydraulic valve (2) on a tractor, the hydraulic valve (2) having at least two screw holes each adapted to receive a screw, the valve fastening means comprising:
- a tractor part (1a) adapted to be attached on a tractor;
- and
- a valve part (1b) adapted for direct assembly of the hydraulic valve (2), the valve part (1b) comprising at least two slits, of which at least a first slit comprises an opening adapted to let a head of a first screw pass therethrough, and both the first slit and a second of said at least two slits comprise a groove sufficiently narrow to prevent the heads of the first screw and a second screw, respectively, from passing therethrough, but sufficiently wide to allow respective threads of the first and second screws to pass therethrough,
- the grooves of said at least two slits extending in the same longitudinal direction so that the hydraulic valve (2), when attached to the valve fastening means without having the first and second screws fully tightened, is movable along the grooves in such way that the first and second screws move in the respective grooves of said at least two slits,
- wherein the second slit is free of any opening sufficient to permit passage of the head of the second screw, the second slit being displaced from all others of the at least two slits, and
- wherein the second slit is displaced from respective positions of the at least two screw holes of the valve (2), whereby the second screw (4) must be screwed out in order to enable movement of the hydraulic valve (2) to a position where the first screw extending through the first slit is positioned in front of the opening of the first slit.
A valve fastening means (1) for attachment of a hydraulic valve (2) on a tractor, the hydraulic valve (2) having at least two screw holes each adapted to receive a screw, the valve fastening means comprising:
- a tractor part (1a) adapted to be attached on a tractor;
- and
- a valve part (1b) connected at an angle to the tractor part (1a), the valve part (1b) comprising at least two slits, of which at least a first slit comprises an opening adapted to permit a head of a first screw pass therethrough, and both the first slit and a second slit of said at least two slits comprise a groove sufficiently narrow to prevent the heads of the first screw and a second screw, respectively, from passing therethrough, but sufficiently wide to allow respective threads of the first and second screws to pass therethrough,
- the grooves of said at least two slits both extending in a longitudinal direction so that the hydraulic valve (2), when attached to the valve fastening means without having the first and second screws fully tightened, is movable in the longitudinal direction of the at least two slits as the first and second screws slide along respective lengths of the first and second of the at least two slits,
- wherein the second slit is free of any opening sufficient to permit passage of the head of the second screw,
- wherein the second slit is separate from and displaced from all others of the at least two slits, and
- wherein opposite first and second ends of the second slit are both distanced from a position of the opening of the first slit such that the second screw (4) must be entirely removed from a corresponding screw hole of the hydraulic valve (2) in order to permit the hydraulic valve (2) to occupy a position where the head of the first screw is aligned with the opening of the first slit to pass therethrough.
Dependencies are inferred from the claim text.