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    • 5. 发明申请
    • QUICK-COUPLING FOR MOWER BLADES
    • 快速接头用于风机叶片
    • WO2014152992A2
    • 2014-09-25
    • PCT/US2014/028560
    • 2014-03-14
    • HUSQVARNA ABHUSQVARNA CONSUMER OUTDOOR PRODUCTS N.A., INC.
    • JOHANSSON, JörgenLENNINGS, Eric
    • A01D34/412
    • A01D34/733A01D34/64A01D34/68
    • A lawn care device may include a cutting deck housing at least one blade, a rotatable shaft, and a blade coupler operably coupled to the rotatable shaft. The blade coupler may define a blade channel configured to at least partially enclose four sides of a blade inserted therein. The blade coupler may include a support base and a sleeve that is movable relative to the support base based on a compression state of a biasing element. The blade may be insertable into the blade channel by orienting the blade to apply a force to sidewalls of the sleeve to shift the biasing element to a compressed state and rotating the blade proximate to the support base to enable the biasing element to shift to an extended state in which sidewalls of the sleeve define sidewalls of the blade channel.
    • 草坪护理装置可以包括切割台,其包含至少一个叶片,可旋转轴和可操作地联接到可旋转轴的叶片联接器。 刀片联接器可以限定被配置为至少部分地包围插入其中的刀片的四个侧面的刀片通道。 刀片联接器可以包括支撑基座和基于偏置元件的压缩状态相对于支撑基座移动的套筒。 叶片可以通过使叶片定向以将力施加到套筒的侧壁以将偏置元件移动到压缩状态并使叶片靠近支撑基座旋转以使得偏置元件能够移动到延伸部 套筒的侧壁限定叶片通道的侧壁的状态。
    • 7. 发明公开
    • ALL WHEEL DRIVE, WALK BEHIND MOWER
    • EP3586593A3
    • 2020-04-22
    • EP19191954.7
    • 2012-02-13
    • HUSQVARNA AB
    • HELGESEN, JohnLENNINGS, EricFANCHER, RobertLAMBERT, Matthew M.
    • A01D34/68A01D34/69
    • A lawn mower (10) comprises a blade housing (20); an engine (30) supported at least in part by the blade housing (20) and configured to rotate a drive shaft (130), wherein the drive shaft (130) comprises a drive shaft pulley; a mobility assembly operably coupled to the engine and configured to provide mobility of the lawn mower (10) responsive at least in part to operation of the engine (30), wherein the mobility assembly comprises a first set of wheels (40.42) and a second set of wheels (40,42); a drive system comprising: a first transmission operably coupled to the first set of wheels; a second transmission operably coupled to the second set of wheels; a single flexible driving member; and an idler pulley; and a remote actuator (70) operably coupled to the drive system, wherein the idler pulley moves from a first position to a second position responsive to operation of the remote actuator (70), wherein, when the idler pulley is in the first position, the lawn mower (10) is in a no wheel drive mode such that the flexible driving member is slack and power is not transmitted from the drive shaft to the first and second transmissions, wherein, when the idler pulley is moved to the second position, the lawn mower (10) is switched to an all wheel drive mode such that the idler pulley tightens the flexible driving member to engage the drive shaft pulley, the first transmission, and the second transmission to permit power transmission from the drive shaft (130) to each of the first and second sets of wheels, and wherein, in the all wheel drive mode, the drive shaft pulley engages a first surface of the flexible driving member, and the idler pulley engages a second surface of the flexible driving member, wherein the second surface of the flexible driving member is opposite to the first surface of the flexible driving member.
    • 9. 发明公开
    • ALL WHEEL DRIVE, WALK BEHIND MOWER
    • EP3586593A2
    • 2020-01-01
    • EP19191954.7
    • 2012-02-13
    • HUSQVARNA AB
    • HELGESEN, JohnLENNINGS, EricFANCHER, RobertLAMBERT, Matthew M.
    • A01D34/68A01D34/69
    • A lawn mower (10) comprises a blade housing (20); an engine (30) supported at least in part by the blade housing (20) and configured to rotate a drive shaft (130), wherein the drive shaft (130) comprises a drive shaft pulley; a mobility assembly operably coupled to the engine and configured to provide mobility of the lawn mower (10) responsive at least in part to operation of the engine (30), wherein the mobility assembly comprises a first set of wheels (40.42) and a second set of wheels (40,42); a drive system comprising: a first transmission operably coupled to the first set of wheels; a second transmission operably coupled to the second set of wheels; a single flexible driving member; and an idler pulley; and a remote actuator (70) operably coupled to the drive system, wherein the idler pulley moves from a first position to a second position responsive to operation of the remote actuator (70), wherein, when the idler pulley is in the first position, the lawn mower (10) is in a no wheel drive mode such that the flexible driving member is slack and power is not transmitted from the drive shaft to the first and second transmissions, wherein, when the idler pulley is moved to the second position, the lawn mower (10) is switched to an all wheel drive mode such that the idler pulley tightens the flexible driving member to engage the drive shaft pulley, the first transmission, and the second transmission to permit power transmission from the drive shaft (130) to each of the first and second sets of wheels, and wherein, in the all wheel drive mode, the drive shaft pulley engages a first surface of the flexible driving member, and the idler pulley engages a second surface of the flexible driving member, wherein the second surface of the flexible driving member is opposite to the first surface of the flexible driving member.