Abstract: Spool 1 for winding wire 2 comprising a hub 3, having a cylindrical external surface 4 extending around a main axis X-X, on which a channel 5 is afforded for guiding the wire 2 through the hub 3 terminating with a first hole 51 and a second hole 52. Three flanges 6,7,8 to define at least two chambers for winding the wire about the hub 3. Wherein the aforesaid hole 51 terminates with a respective terminal portion 9 made inside the cylindrical external surface 4.

Abstract: A portable sharpener for chains of chainsaws comprising sharpening means (2) and a coupling device (3). The sharpening means (2) are configured to sharpen the teeth (102) of a chain (101) of a chainsaw. The coupling device (3) supports the sharpening means (2) and is configured to be reversibly constrained to the chainsaw. Furthermore, the coupling device (3) comprises a support structure (4) which has a first plate (4a) adapted to be arranged parallel to a main extension plane of a chain guide bar (100) of the chainsaw and a second plate (4b) configured to abut against the bar (100), in such a way as to be at least partly interposed between the bar and the chain (101). The first and the second plate (4b) are arranged substantially in an L-configuration. The coupling structure further comprises one or more attachment members (5) applied to the first plate (4a) and configured to constrain the support structure (4) to the bar (100) of the chainsaw.

Abstract: A bypass valve, comprising: a main conduit (10), comprising a first section (11) and a second section (12); a mobile control shutter (21); a bypass conduit (30) which places the main conduit (10) in communication with a discharge opening; a control element (31), mobile between a closed position, at which it closes the bypass conduit (30), and an open position, at which it opens the bypass conduit; a throttle element (40), interposed between the first section (11) and the second section (12), structured to produce a load loss which depends on the fluid flow rate in transit along the main conduit (10). The control element (31) is tubular-shaped and defines internally a section of the bypass conduit (30). The control element (31) is slidable along a housing (32) provided with a sealing seat (33). A passageway (34) is predisposed between the control element (31) and the housing (32) which places the first section (11) in communication with the second section (12).

Abstract: A trimmer head that includes a casing to be coupled to a driveshaft. The casing includes an upper shell and a lower shell, with the lower shell including a second toothing that protrudes upwardly. The trimmer head further includes an upper disk and a lower disk within the casing, with the lower disk including a first toothing that protrudes downwardly. A spool of cutting wire is positioned between the lower disk and the upper disk. In an engagement position, the first toothing and the second toothing are engaged and the upper disk and lower disk rotate with the lower shell. In a free position, the first toothing and the second toothing are disengaged and the upper disk and lower disk rotate with respect to the lower shell.

Abstract: A nozzle comprises: a housing element, a chamber being defined inside the housing element for containing a fluid; a rotor extending along a longitudinal axis, the rotor being arranged inside the housing element so that the longitudinal axis of the rotor is tilted relative to an axis of the housing element, the rotor having a conduit through which the fluid contained in the chamber can flow out of the nozzle. The rotor is rotatably derivable about the axis of the housing element, so that the longitudinal axis of the rotor moves along a conical surface. The nozzle further comprises an anti-drip device for selectively closing the conduit of the rotor, so that the fluid contained in the chamber is prevented from exiting through the conduit when the nozzle is inactive.

Abstract: A tapping body for a head for a hedge trimmer that includes a lower portion (2), destined to be tapped or pressed onto the ground, and a side portion (3) which is so structured as to be arranged through a lower opening (11) of a casing (10) of the head; a projecting part (4), which protrudes externally to the side portion (3) and is provided with a lower waved profile (41).

Abstract: A head for hedge trimmer includes an external casing intended to rotate around an axis of rotation and equipped with at least one lateral exit hole for a cutting wire, the external casing internally presents a seating for the storage of a part of the cutting wire so that an end portion of the wire exits from the casing through a lateral hole. The head further includes, within the seating, a pair of presser discs facing each other and defining between them an annular shaped housing to contain part of the cutting wire. The presser elements are movable towards each other along the axis of rotation for compressing between them the part of the cutting wire stored between them.