FI97939B - Cutting head for secateurs - Google Patents

Description

Ηίαιιηιιιιι

f --- F1000097939B

(B) (11) NOTICE OF PUBLICATION

UTLAGGNINGSSKRIFT 97939 • e7 ^ \ 3r \ v (51) Kv.lk.6 - Int.cl.6 A 01D 34/82 FINLAND-FINLAND (21) Patent application - Patentansöknlng 931054 '22) Application date - Ansöknirtgsdag 10.03.93 (24) Start date - LSpdag 11.09.90

Patent and rakiata.ihalditua <4I> Τ “” “ι * e, w,‘ «“ “’ ”s 10.03.93

Patent * och registerstyrelsen (44) Date of dispatch and of publication. -

AnsSkan utlagd och utl.skrlften published 13.12.96 (86) Kv. application - Int. ansökan PCT / US90 / 05109 (71) Applicant - Sökande 1. Milbourn, David E., Route 3, Box 696D, Hoquiam, VA 98550, USA, (US) (72) Inventor - Uppfinnare 1. Milbourn, David E., Route 3, Box 6960, Hoquiam, WA 98550, USA (74) Agent - Ombud: Leitzinger Oy (54) Title of the invention - Uppfinningens benämning

ElkkurIn head SkXrhuvud fSr busksax (56) Felt publications - AnfÖrda publication book US A 4769977 (A 01D 34/86), US A 3866937 (A 01D 35/12), US A 3534533 (A 010 35/26) (57) Abstract - Samnandrag

The invention relates to a workbench (20) of a hedge trimmer with a protective hood (36) provided with a vertical side opening (40) to expose a part of the circular cutting blade (42) to allow it to be cut by a tori (42). A spray nozzle (82) is mounted on the slide member (74), the mickey sliding inside the tubular housing (58) which is housed in the housing housing (28). The sliding λ member (74) has a retracted position where 34 g of 32 nozzles (82) are positioned above portion 2β of the housing (28) and a protruding operating position where> 30 nozzles (82) are aligned with the opening (40). ™ "· above and outside the blade (42). The gripping thumb (44) is pivotally mounted on the housing (28) and is actuated by an actuator (52) inside the housing (28) to pivot between a steady in-use position and a gripping position, wherein the gripping position is the thumb opposite the jaw (38) formed by the lower portion of the hood (36).

Claims (11)

A working head (20) for a bush cutting machine, the working head comprising: a housing (28); a cutting blade (42) supported by the housing (28); wherein the housing (28) includes a protective cover (36) with a through the extending opening (40) to expose a portion of the blade (42) to enable the blade (42) to cut the bush, characterized by: a spray nozzle ( 82) supported by the housing (28), which nozzle has a spray position, in which nozzle (82) is located substantially opposite the opening (40) leaking from said portion of the blade (42) to allow injection of the liquid downstream from the nozzle of the bush; and an activator (88) spaced from the housing (28) and operatively coupled to the nozzle (82) to selectively spray liquid therefrom. 2. The working head according to claim 1, characterized in that the nozzle (82) can be slidably retracted to a non-use position. The working head according to claim 2, characterized in that the opening (40) in the cover (36) extends through the side portion of the cover (36); and the nozzle (82), in its said syringe position, is positioned in the lateral direction outside the said portion of the blade (42). : 30 4. The working head according to any of claims 1-3, characterized in that the blade (42) is one in large. seen around rotating cutting blades, which are mounted to rotate about their vertical axis and radially close out through the opening (40). : 35 m 20 979Z9 5. The working head according to claim 1, characterized in that the nozzle (82) can be adjusted to form an adjustable spray pattern of said liquid. The working head according to claim 1 or 5, characterized in that it comprises a plurality of nozzles (82) having said spray position. The working head according to claim 1, 2, 3 or 4, characterized in that it further comprises a gripping jaw (38) supported by the lower part of the housing (28); and a thumb (44) rotatably mounted in the housing (28) for pivoting from a non-use position (Figures 1, 2 and 6), in which the thumb (44) is at least substantially in the same pane 15 toward the housing (28). ) The upper part, towards the jaw (38) and with the help of this grip the cut bush and other waste between the thumb (44) and the cover (28). Combination of the working head (20) according to any of claims 1 to 7 and a boom, said boom having an end part, to which said working head is pivotally connected. A bus shearing machine, comprising in combination: a boom (12) with opposite end portions; and a working head (20) rotatably connected to one of said end portions, said working head (20) comprising: a housing (28): a cutting blade (42) supported by the housing (28), the housing (28) comprising a protective cap (36), which surrounds the portion of the blade (42), characterized by: a spray nozzle (82) mounted in the housing (28); wherein the nozzle (82) is slidable between a non-use position and a spray position, wherein in said non-use position the nozzle (82) is prevented by the part of the housing (28), and in the spray position the nozzle (82) is directed past the housing ( 28) and the blade (42) to allow the spraying of the liquid downstream from the nozzle of the cut bush: this. 10. Device according to claim 9, characterized in that the nozzle (82) is slidable in the lateral direction relative to the housing (28). A bushing machine working head (20), the working head comprising: a cover (28); a cutting blade (42) supported by the housing (28); a gripping jaw (38) supported by the lower part of the housing (28), characterized by: a thumb (44) pivotally mounted to the housing (28) for pivoting about a horizontal axis from a non-use position, where the turtune (44) eats at least substantially lying in the same plane towards the upper part of the casing (28), towards the jaw (38), and using this to grasp the cut bush and other debris between the turtun (44) and the casing (28); and an actuator (52) mounted at the inside of the housing (28) and coupled to the thumb (44) to pivot the thumb (44) about said shaft. t »