摘要:
The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (10). Hedge cutters (10) frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus (10) having a plurality of cutting blades (11,12), at least one of which blades (11,12) is drivable by means of an electric motor. At least one driven blade (11,12) is movable between two predefined points of maximum travel. The apparatus (10) comprises a control means which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control means.
摘要:
The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (10). Hedge cutters (10) frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus (10) having a plurality of cutting blades (11,12), at least one of which blades (11,12) is drivable by means of an electric motor. At least one driven blade (11,12) is movable between two predefined points of maximum travel. The apparatus (10) comprises a control means which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control means.
摘要:
The present invention relates to shredders of the type used for shredding branches and other vegetation, typically garden waste. We describe a vegetation shredder comprising a shredding cutter; a cutter housing (10) for said shredder cutter; the cutter housing (10) having an inlet (14) and an outlet (15); a shredder inlet assembly (20) and a frame (11, 12) supporting the cutter housing. The present invention is characterised in that the shredder inlet assembly (20) is pivotally mounted upon the cutter housing (10).
摘要:
The present invention relates to shredders of the type used for shredding branches and other vegetation, typically garden waste. In particular, we will describe a feed inlet or hopper (10) for a shredder apparatus (30), the hopper (10) having an opening (13) between opposed first and second walls (14, 15), wherein each of said first and second walls (14, 15) includes at least one projection (20) projecting into the opening The hopper is characterised in that each projection includes inclined upper (21) and lower (22) surfaces. The present invention also relates to a shredder (30) apparatus including the hopper (10).
摘要:
The present invention relates to improvements in or relating to cutters for shredders, in particular to cutters for shredders, in particular for vegetation shredders, suitably of the type used for shredding tree branches and garden waste. The present invention relates to a cutter (33) and method for manufacturing the cutter by means of investment casting. We describe a cutting element (33) for a vegetation shredder, the cutting element being a hollow unitary element comprising a plurality of elongate blades (45) arranged in a generally cylindrical configuration between a proximal and distal support elements (43, 44). The cylindrical configuration has a generally frusto-conical form, the distal support element (44) forming a base of said frusto-conical form. The cutting element is formed with elongate aperture s (51) between adjacent blades (45).
摘要:
The present invention relates to cutting tools, in particular, to control systems for cutters such as vegetation cutters, especially hedge cutters or trimmers (10). Hedge cutters (10) frequently suffer in use from a problem of blocked cutting blades when they encounter a twig or branch whose size or density exceeds the capacity of the blades. We describe a vegetation cutting apparatus (10) having a plurality of cutting blades (11,12), at least one of which blades (11,12) is drivable by means of an electric motor. At least one driven blade (11,12) is movable between two predefined points of maximum travel. The apparatus (10) comprises a control means which causes a change of direction in the movement of the at least one movable blade at a point intermediate the points of maximum travel in response to an event sensed by the control means.
摘要:
Die Erfindung betrifft eine Gartenbearbeitungsmaschinenschaltvorrichtung, die dazu vorgesehen ist, eine Elektromotoreinheit (12) zumindest teilweise elektrisch zu schalten, mit zumindest einem Schalter (14), welcher über ein Verbindungskabel (46) mit der Elektromotoreinheit (12) verbunden ist. Es wird vorgeschlagen, dass die Gartenbearbeitungsmaschinenschaltvorrichtung eine Vergleichsschaltungseinheit (16) umfasst, die dazu vorgesehen ist, zumindest zwischen einem geschlossenen Zustand des Schalters (14) und einem Kurzschluss im Verbindungskabel (46) zu unterscheiden.