Tomato string guide reel - travels along horizontal wire during unwinding

摘要

The reel guides string supporting tomatoes or similar plants, the weight of the plant causing it to unwind. The reel (3) is coupled to a wire (1) with balls along it at regular intervals. As the string (4) unwinds the reel travels horizontally along the wire. The reel can be coupled to the wire by a gear train and sprocket engaging with the wire.