Device for unwinding a flexible support wire for vines
The invention relates to a device for unwinding a flexible support wire for vines, comprising a dispenser having a rack ( 12 ) provided with means for fastening to a carrier cable, a winding reel ( 14 ) for said support wire, mounted on the rack ( 12 ) rotatably about an axis of rotation, and rotational retention means for the winding reel ( 14 ), which are capable of assuming a retention state in which the rotation of the winding reel ( 14 ) is blocked and a release state in which the winding reel ( 14 ) is able to rotate freely. The device includes remote control means for guiding the changeover of the retaining means from the retention state to the release state and conversely.
1. A dispenser for use with a carrier cable and a flexible support wire for vines, said dispenser comprising:
a rack having support means for supporting said rack on a carrier cable;
a winding reel for receiving a support wire, said reel rotatably mounted on a front face of said rack about an axis of rotation and including a plurality of first retaining elements integral with said reel;
a flexible arm including a first end pivotably coupled to said rack and a second, free end spaced from said first end and including an attachment element, said second end of said flexible arm not including structure for connection to a carrier cable, said flexible arm further including at least one second retaining, element, said second retaining element engaging at least one of said first retaining elements in a retaining position in which rotation of said reel is blocked; and
said arm flexible to effect displacement of said second retaining element between said retaining position and a release position in which said first retaining elements are released, and said arm engageable with a stop on said rack in said release position, wherein said stop comprises:
a flexible leaf; and
a stop wall, said arm flexible from said retaining position toward said release position to initially engage said flexible leaf, followed by engagement of said flexible leaf with said stop wall.
2. The dispenser of claim 1 , wherein said flexible arm is flexible within a plane parallel to said front face.
3. The dispenser of claim 1 , wherein said attachment element is a planar closed loop integrally cantilevered from said second end of said flexible arm.
4. The dispenser of claim 3 , wherein said planar closed loop extends in a direction away from said reel.
5. The dispenser of claim 1 , wherein said second retaining element is a projecting stud, and said first retaining elements are notches of complementary shape to said projecting stud.
6. The dispenser of claim 1 , wherein said first retaining elements are formed on a periphery of a cogwheel integral to said reel.
7. The dispenser of claim 1 , wherein said winding reel includes has a hub with side plates at opposite ends thereof, said side plates perpendicular to said hub and having circular contours, and said rack includes a wiper disposed parallel to said hub and overlapping with the respective contours of said side plates.
8. The dispenser of claim 1 , in combination with at least one carrier cable, said dispenser supported on only one of said carrier cables by said support
means, said free end of said flexible arm not connected to any carrier cable.