Line trimmer
    1.
    发明公开
    Line trimmer 审中-公开
    Fadentrimmer

    公开(公告)号:EP2641461A1

    公开(公告)日:2013-09-25

    申请号:EP12160082.9

    申请日:2012-03-19

    申请人: Robert Bosch GmbH

    IPC分类号: A01D34/416

    摘要: This invention is concerned with a line trimmer or mower head (1). In particular it is concerned with a line trimmer or mower head (1) having an automatic and/or manual line feed system with reduced tendency for cut and worn line to retract fully back into the spool housing. We describe a line trimmer (1) including a rotatable spool assembly (2) of at least one feedable line, at least one primary wall member (4) adjacent a periphery of said spool assembly (2) and a guide passage (7) extending generally radially away from said primary wall member (4). The guide passage (7) is partly defined by a substantially radially extending first formation (11) arranged to bear upon line extending through said guide passage (7), such that in use line located within said guide passage (7) is restricted to a substantially radial orientation.

    摘要翻译: 本发明涉及一种修剪器或割草机头(1)。 特别地,它涉及具有自动和/或手动换行系统的线切割机或割草机头(1),其具有减少的切割和磨损线完全缩回到卷轴壳体中的倾向。 我们描述了包括至少一个可馈线的可旋转的卷轴组件(2)的线修剪器(1),与所述卷轴组件(2)的周边相邻的至少一个主壁构件(4)和延伸 通常径向地远离所述主壁构件(4)。 引导通道(7)部分地由基本上径向延伸的第一结构(11)限定,第一结构(11)布置成沿着延伸穿过所述引导通道(7)的直线延伸,使得位于所述引导通道(7)内的使用线被限制在 基本上径向取向。

    AUTOMATIC HEAD FOR A LINE TRIMMER
    5.
    发明公开
    AUTOMATIC HEAD FOR A LINE TRIMMER 失效
    自动头修剪机。

    公开(公告)号:EP0560926A1

    公开(公告)日:1993-09-22

    申请号:EP92902661.0

    申请日:1991-11-27

    IPC分类号: A01D34 B26B7

    CPC分类号: A01D34/4162

    摘要: Tête automatique de tondeuse à fil (10) comprenant un carter (11) renfermant un rotor (12) qui commande la rotation d'une bobine (16) par rapport au carter dans un mode pas à pas entraîné par la force centrifuge. Ladite force centrifuge s'exerce sur un élément annulaire à expansion radiale (14) qui est placé entre le carter (11) et le rotor (12). La bobine (16) contient une réserve de fil (18) et elle est fixée au rotor (12) pour tourner en même temps que celui-ci. Un arbre traverse le carter (10), le rotor (12) et la bobine (16). Le rotor (12) est sollicité par un ressort à boudin (24) vers un plan de rotation supérieur. L'élément annulaire à expansion radiale (14) déplace le rotor (12) vers un plan inférieur lorsque la force centrifuge entraîne l'expansion de l'élément annulaire (14). Des dents (54) s'étendant radialement et vers l'extérieur depuis le bord extérieur (56) d'une partie de disque circulaire (50) du rotor (12) entrent en contact avec un groupe supérieur de butées lorsque la partie de disque circulaire (50) se trouve dans le plan supérieur. Lesdites dents (54) entrent en contact avec un groupe inférieur de butées (42) lorsque la partie de disque circulaire (50) se trouve dans le plan inférieur.

    Improvements in or relating to vegetation cutters
    6.
    发明公开
    Improvements in or relating to vegetation cutters 失效
    Vorrichtung zum Schneiden von Pflanzen。

    公开(公告)号:EP0417966A1

    公开(公告)日:1991-03-20

    申请号:EP90309709.5

    申请日:1990-09-05

    IPC分类号: A01D34/73 A01D34/00

    CPC分类号: A01D34/4162

    摘要: A device (1) for cutting vegetation comprises a housing (13) rotatable about an axis; a rotatable spool (9) within the housing (13) storing a supply of flexible line (10) having an end extending through an aperture (11) in the housing (13) into a cutting plane normal to said axis; and means for causing relative rotation between said spool (9) and said housing (13) whenever the length of line (10) extending into said cutting plane is less than a predetermined length, to cause additional line to be fed into said cutting plane.
    The means for causing relative rotation between the spool and the housing comprises a series of angularly-spaced locking faces C provided on the spool (9) (or on a member connected thereto) or on the housing (13); a balance bar (30) pivotally mounted on the housing (13) or on the spool (9), said balance bar (30) having a member (32) for engagement with said locking faces C, the centre of gravity (33) of said balance bar (30) being on the side of the pivot point (31) opposite from said member (32); and means tending to direct said member (32) onto said locking faces C.

    摘要翻译: 用于切割植被的装置(1)包括可围绕轴线旋转的壳体(13); 所述壳体(13)内的可旋转卷轴(9)存储柔性线(10)的供应,所述柔性线(10)的端部延伸穿过所述壳体(13)中的孔(11)到垂直于所述轴线的切割平面; 以及每当延伸到所述切割平面中的线(10)的长度小于预定长度时,使得所述卷轴(9)和所述壳体(13)之间的相对旋转的装置,以使另外的线被馈送到所述切割平面中。 用于在卷轴和壳体之间引起相对旋转的装置包括设置在卷轴(9)上(或连接到其上的构件上)或壳体(13)上的一系列角度间隔开的锁定面C; 平衡杆(30),其枢转地安装在所述壳体(13)上或所述卷轴(9)上,所述平衡杆(30)具有用于与所述锁定面C接合的构件(32),所述锁定面C的重心 所述平衡杆(30)位于与所述构件(32)相对的枢转点(31)侧上; 并且意味着倾向于将所述构件(32)引导到所述锁定面C上

    Apparatus for cutting vegetation
    7.
    发明公开
    Apparatus for cutting vegetation 失效
    Vorrichtung zum Schneiden von Pflanzen。

    公开(公告)号:EP0313679A1

    公开(公告)日:1989-05-03

    申请号:EP87115843.2

    申请日:1987-10-28

    IPC分类号: A01D34/73

    CPC分类号: A01D34/4162

    摘要: Apparatus for cutting vegetation with a rotatable head carrying a non-metallic cutting line (31) extended into a cutting plane. As the line extension decreases from an established preset length an actuator in the head permits additional line to be extended automatically from a supply source within the head. The actuator imposes a back pressure (F₃) against the line of magnitude correlated to the sensed pull tension wanting to extend the line outward of the head. After the cutting line length is extended to its restored original preset length, the actuator in response to the operational forces imposed thereon secures the cutting line against further extension until a subsequent decrease in line extension is incurred. In one embodiment an iner­tial drag brake (68) is activated during the course of line feedout and is deactivated after the length of cutting line has been fully restored.

    摘要翻译: 用于切割植被的设备,其具有可旋转的头部,其携带延伸到切割平面中的非金属切割线(31)。 当线路延伸从已建立的预设长度减小时,头部中的致动器允许从头部内的供应源自动延伸附加线。 致动器施加背压(F3),该背压相对于感测到的拉伸张力相关的幅度线,该牵引张力希望将线延伸到头部的外部。 在切割线长度延伸到其恢复的原始预设长度之后,响应于施加的操作力的致动器固定切割线以防止进一步延伸,直到引起线延伸的随后减小。 在一个实施例中,惯性拖拉制动器(68)在行进给过程中被激活,并且在切割线的长度已经完全恢复之后被停用。

    Vegetation cutting device
    10.
    发明公开
    Vegetation cutting device 有权
    植被切割装置

    公开(公告)号:EP2798935A1

    公开(公告)日:2014-11-05

    申请号:EP13166515.0

    申请日:2013-05-03

    发明人: Bone, Graham

    IPC分类号: A01D34/416

    CPC分类号: A01D34/4162

    摘要: A rotatable cutting head (102) for a vegetation cutting device (100) comprises a rotatable spool (204) having a cutting line (116) wound thereon. A free end of the cutting line (116) is arranged to exit the cutting head (102) via an opening (216). A feeding mechanism (350) is configured allow the spool (204) to rotate and feed cutting line (116) from the spool (204) when the free end is shorter than a predetermined length. A moveable locking mechanism (220) is configured to move between a locking position in which the locking mechanism engages the feeding mechanism (350) and stops the feeding mechanism (350) from feeding the cutting line (116) and a release position in which the feeding mechanism (350) can feed the cutting line (116). A moveable eyelet (214) is mounted at the opening (216) for receiving the free end of the cutting line (116), the moveable eyelet (214) configured to move between a first position and a second position. The moveable locking mechanism (220) is coupled to the moveable eyelet (214), and the locking mechanism (220) is configured to move between the release position and the locking position when the moveable eyelet (214) moves from the first position to the second position.

    摘要翻译: 用于植物切割装置(100)的可旋转切割头(102)包括具有缠绕在其上的切割线(116)的可旋转卷轴(204)。 切割线(116)的自由端布置成经由开口(216)离开切割头(102)。 当自由端短于预定长度时,进给机构(350)被构造成允许卷轴(204)旋转并从卷轴(204)进给切割线(116)。 可移动的锁定机构(220)构造成在锁定机构(350)接合进给机构(350)的锁定位置和停止进给机构(350)进给切割线(116)的释放位置与释放位置之间移动, 进料机构(350)可以供给切割线(116)。 可移动的孔眼(214)安装在开口(216)处以接收切割线(116)的自由端,可移动的孔眼(214)构造成在第一位置和第二位置之间移动。 可动锁定机构(220)联接到可动孔眼(214),并且锁定机构(220)构造成当可动孔眼(214)从第一位置移动到第一位置时,在释放位置和锁定位置之间移动 第二位。