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公开(公告)号：US20240059533A1
公开(公告)日：2024-02-22
申请号：US18267335
申请日：2020-12-17
发明人： Detlef STRUCK , Wolfram SCHNEEBECK
摘要： A lever hoist including a housing, in which a load chain wheel and a drive shaft are rotatably mounted. A drive torque is transmittable to the drive shaft via a lever. A load chain is moveable via the load chain wheel. The ratchet wheel has an internal thread and is axially displaceable on a threaded portion of the drive shaft having a brake thread. A damping spring is on a drive-side portion of the drive shaft between the threaded portion and an outer stop. If the load chain is blocked, when the load no longer continues to slip in a sliding manner, the ratchet wheel is pushed against the pressure of the damping spring until the pawl body is displaced out of the drive teeth into the untoothed disengagement portion.
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公开(公告)号：US20240101400A1
公开(公告)日：2024-03-28
申请号：US18273140
申请日：2021-11-29
发明人： Detlef STRUCK
摘要： A lifting gear has a load chain sprocket and a drive shaft. The drive shaft drives the load chain sprocket. The lifting gear has a motor having a motor shaft. The motor shaft and the drive shaft are coupled by a brake clutch system. The brake clutch system includes a clutch part and a brake hub on a brake thread of the drive shaft. The clutch part has dogs and the brake hub has pegs. A vane disk is between the clutch part and the brake hub. The vane disk has vane bodies on a coupling portion of the drive shaft. A pressure plate is positioned in a rotationally fixed manner on the drive shaft. Two friction disks are between the brake hub and the pressure plate, and a brake disk is between the two friction disks, and the brake disk is mounted in a rotationally fixed manner.
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公开(公告)号：US12006190B2
公开(公告)日：2024-06-11
申请号：US17629083
申请日：2020-02-13
发明人： Detlef Struck , Wolfram Schneebeck
CPC分类号： B66D1/06 , B66D3/14 , B66D5/14 , B66D5/34 , B66D2700/05
摘要： A lever hoist includes a housing in which a load chain wheel and a drive shaft driving the load chain wheel via a transmission are rotatably mounted, as well as a safety brake. A load chain is movable via the load chain wheel. The safety brake implements emergency braking in response to excessive rotational speed of the drive shaft. The safety brake includes a locking disc with teeth and a control disc with control cams. The locking disc and the control disc are rotatable in a limited manner. A catch hook is movable in a swiveling manner and has a latch contour at a front end and a sensing contour at a rear end. The sensing contour rests on the control disc. When a defined rotational speed is exceeded, the sensing contour lifts off the control disc. The latch contour engages with a locking tooth of the locking disc.
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公开(公告)号：US20220242704A1
公开(公告)日：2022-08-04
申请号：US17629083
申请日：2020-02-13
发明人： Detlef STRUCK , Wolfram SCHNEEBECK
摘要： A lever hoist includes a housing in which a load chain wheel and a drive shaft driving the load chain wheel via a transmission are rotatably mounted, as well as a safety brake. A load chain is movable via the load chain wheel. The safety brake implements emergency braking in response to excessive rotational speed of the drive shaft. The safety brake includes a locking disc with teeth and a control disc with control cams. The locking disc and the control disc are rotatable in a limited manner. A catch hook is movable in a swivelling manner and has a latch contour at a front end and a sensing contour at a rear end. The sensing contour rests on the control disc. When a defined rotational speed is exceeded, the sensing contour lifts off the control disc. The latch contour engages with a locking tooth of the locking disc.
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公开(公告)号：US11999600B2
公开(公告)日：2024-06-04
申请号：US17629069
申请日：2020-02-13
发明人： Detlef Struck , Wolfram Schneebeck
CPC分类号： B66D1/06 , B66D3/14 , B66D5/14 , B66D5/34 , B66D2700/05
摘要： A lever hoist includes a housing in which a load chain wheel and a driveshaft driving the load chain wheel are mounted, as well as a safety brake. A load chain is movable via the load chain wheel. The safety brake brings about an emergency braking in the event of excessive rotational speed of the driveshaft. The safety brake has a locking disc with teeth and a control disc with control cams. The locking disc and the control disc are rotatable in relation to one another in a limited manner. A catch hook is movable in a swiveling manner and has a latch contour and a sensing contour. The sensing contour rests on the control. In response to exceeding a defined rotational speed, the sensing contour lifts off the control disc. The latch contour rotates towards the locking disc and engages with a locking tooth of the locking disc.
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公开(公告)号：US20180099845A1
公开(公告)日：2018-04-12
申请号：US15566920
申请日：2016-05-27
发明人： Wolfram SCHNEEBECK , Detlef STRUCK
IPC分类号： B66D3/14
CPC分类号： B66D3/14
摘要： The invention relates to a lifting gear having a flexible drive and a traction drive movable by the flexible drive. The flexible drive can be actuated by a lever arm arranged to pivot, and in the region of the free end of the lever arm, a handle is connected to the lever arm by an articulated joint. The handle can be pivoted from a starting position into an operating position.
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公开(公告)号：US20220274813A1
公开(公告)日：2022-09-01
申请号：US17629069
申请日：2020-02-13
发明人： Detlef STRUCK , Wolfram SCHNEEBECK
摘要： A lever hoist includes a housing in which a load chain wheel and a driveshaft driving the load chain wheel are mounted, as well as a safety brake. A load chain is movable via the load chain wheel. The safety brake brings about an emergency braking in the event of excessive rotational speed of the driveshaft. The safety brake has a locking disc with teeth and a control disc with control cams. The locking disc and the control disc are rotatable in relation to one another in a limited manner. A catch hook is movable in a swivelling manner and has a latch contour and a sensing contour. The sensing contour rests on the control. In response to exceeding a defined rotational speed, the sensing contour lifts off the control disc. The latch contour rotates towards the locking disc and engages with a locking tooth of the locking disc.
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公开(公告)号：US10252896B2
公开(公告)日：2019-04-09
申请号：US15566920
申请日：2016-05-27
发明人： Wolfram Schneebeck , Detlef Struck
IPC分类号： B66D3/14
摘要： The invention relates to a lifting gear having a flexible drive and a traction drive movable by the flexible drive. The flexible drive can be actuated by a lever arm arranged to pivot, and in the region of the free end of the lever arm, a handle is connected to the lever arm by an articulated joint. The handle can be pivoted from a starting position into an operating position.
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