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公开(公告)号：US20230287942A1
公开(公告)日：2023-09-14
申请号：US18196509
申请日：2023-05-12
发明人： Toan Dang , George Matthews
摘要： A clutch assembly for a roller door operator, the clutch assembly providing selective engagement with a drive wheel, the clutch assembly comprising: a rotatable shaft rotatable relative to the drive wheel; a clutch disc supported in a clutch lever and arranged to rotate with the rotatable shaft, the clutch disc and clutch lever configured to rotate relative to one another around the axis of rotation of the shaft; and a clutch cam supported in a clutch base, the clutch base configured to permit operative rotation of the clutch cam around the axis of rotation of the shaft in a first direction; wherein the clutch lever is operatively associated with the clutch cam so that rotational movement of the clutch lever in a second direction opposite to the first direction actuates movement of the clutch disc and the clutch lever axially along the rotatable shaft to engage or disengage the clutch disc with the drive wheel, and subsequent rotational movement of the clutch lever in the first direction actuates rotational movement of the clutch cam relative to the clutch base in the first direction.
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公开(公告)号：US20220235597A1
公开(公告)日：2022-07-28
申请号：US17612843
申请日：2020-06-05
发明人： Raymond Hawkins , George Matthews
IPC分类号： E05F15/686
摘要： A tensioning device for a door operating system includes a pulley carriage on which a pulley of the door operating system is mounted for rotation, the pulley carriage being movable relative to a track of the door operating system. The tensioning device further includes an adjuster configured to move the pulley carriage relative to the track and thereby alter a level of tension in a longitudinal drive component of the door operating system, the adjuster of the tensioning device being accessible from an end of the tensioning device facing a track operator end of the door operating system. The tensioning device also includes a resilient member operatively engaged with the adjuster, the resilient member configured to provide damping of forces experienced by the longitudinal drive component.
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公开(公告)号：USD946376S1
公开(公告)日：2022-03-22
申请号：US29683973
申请日：2019-03-18
设计人： Toan Dang , George Matthews , Travis Smith , Raymond Hawkins
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公开(公告)号：US11686351B2
公开(公告)日：2023-06-27
申请号：US17407346
申请日：2021-08-20
发明人： Toan Dang , George Matthews
CPC分类号： F16D11/14 , F16D23/12 , E06B9/74 , F16D2023/123
摘要： A clutch assembly for a roller door operator, the clutch assembly providing selective engagement with a drive wheel, the clutch assembly comprising: a rotatable shaft rotatable relative to the drive wheel; a clutch disc supported in a clutch lever and arranged to rotate with the rotatable shaft, the clutch disc and clutch lever configured to rotate relative to one another around the axis of rotation of the shaft; and a clutch cam supported in a clutch base, the clutch base configured to permit operative rotation of the clutch cam around the axis of rotation of the shaft in a first direction; wherein the clutch lever is operatively associated with the clutch cam so that rotational movement of the clutch lever in a second direction opposite to the first direction actuates movement of the clutch disc and the clutch lever axially along the rotatable shaft to engage or disengage the clutch disc with the drive wheel, and subsequent rotational movement of the clutch lever in the first direction actuates rotational movement of the clutch cam relative to the clutch base in the first direction.
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公开(公告)号：US20230045412A1
公开(公告)日：2023-02-09
申请号：US17960858
申请日：2022-10-06
发明人： George Matthews , Raymond Hawkins
IPC分类号： E05F15/681 , E06B3/48 , E06B9/74
摘要： A device for a track- or rail-mounted closure drive assembly can include a lever and cam arrangement configured to drive an engagement member between an engaged position and a disengaged position, the engaged position allowing motor drive of a closure and the disengaged position disconnecting the drive from the motor to the closure; and a rotating body including one or more camming surfaces and one or more peripheral surfaces, the peripheral surfaces including visual indicia to indicate to a user an orientation of the one or more camming surfaces and hence whether the engagement member is in the engaged position or the disengaged position.
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公开(公告)号：US11959325B2
公开(公告)日：2024-04-16
申请号：US17960858
申请日：2022-10-06
发明人： George Matthews , Raymond Hawkins
IPC分类号： E05F15/681 , E05F15/668 , E06B3/48 , E06B9/74
CPC分类号： E05F15/681 , E05F15/668 , E06B3/485 , E06B9/74 , E05Y2201/214
摘要： A device for a track- or rail-mounted closure drive assembly can include a lever and cam arrangement configured to drive an engagement member between an engaged position and a disengaged position, the engaged position allowing motor drive of a closure and the disengaged position disconnecting the drive from the motor to the closure; and a rotating body including one or more camming surfaces and one or more peripheral surfaces, the peripheral surfaces including visual indicia to indicate to a user an orientation of the one or more camming surfaces and hence whether the engagement member is in the engaged position or the disengaged position.
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公开(公告)号：US20210381557A1
公开(公告)日：2021-12-09
申请号：US17407346
申请日：2021-08-20
发明人： Toan Dang , George Matthews
摘要： A clutch assembly for a roller door operator, the clutch assembly providing selective engagement with a drive wheel, the clutch assembly comprising: a rotatable shaft rotatable relative to the drive wheel; a clutch disc supported in a clutch lever and arranged to rotate with the rotatable shaft, the clutch disc and clutch lever configured to rotate relative to one another around the axis of rotation of the shaft; and a clutch cam supported in a clutch base, the clutch base configured to permit operative rotation of the clutch cam around the axis of rotation of the shaft in a first direction; wherein the clutch lever is operatively associated with the clutch cam so that rotational movement of the clutch lever in a second direction opposite to the first direction actuates movement of the clutch disc and the clutch lever axially along the rotatable shaft to engage or disengage the clutch disc with the drive wheel, and subsequent rotational movement of the clutch lever in the first direction actuates rotational movement of the clutch cam relative to the clutch base in the first direction.
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公开(公告)号：US11137034B2
公开(公告)日：2021-10-05
申请号：US16576410
申请日：2019-09-19
发明人： Toan Dang , George Matthews
摘要： A clutch assembly for a roller door operator, the clutch assembly providing selective engagement with a drive wheel, the clutch assembly comprising: a rotatable shaft rotatable relative to the drive wheel; a clutch disc supported in a clutch lever and arranged to rotate with the rotatable shaft, the clutch disc and clutch lever configured to rotate relative to one another around the axis of rotation of the shaft; and a clutch cam supported in a clutch base, the clutch base configured to permit operative rotation of the clutch cam around the axis of rotation of the shaft in a first direction; wherein the clutch lever is operatively associated with the clutch cam so that rotational movement of the clutch lever in a second direction opposite to the first direction actuates movement of the clutch disc and the clutch lever axially along the rotatable shaft to engage or disengage the clutch disc with the drive wheel, and subsequent rotational movement of the clutch lever in the first direction actuates rotational movement of the clutch cam relative to the clutch base in the first direction.
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公开(公告)号：US11505982B2
公开(公告)日：2022-11-22
申请号：US16973807
申请日：2019-06-20
发明人： George Matthews , Raymond Hawkins
IPC分类号： E05F15/681 , E06B9/74 , E06B3/48
摘要： A device for a closure drive assembly can include: a moveable trolley, the trolley configured for movement along a track or a rail under drive by a drive component to move a closure between an open position and a closed position, the trolley including a body having a guiding surface; a rotating body having one or more camming surfaces, rotation of the rotating body about a rotation axis being supported by the guiding surface; and a lever having a lever camming surface configured to engage with one or more of the camming surfaces of the rotating body, wherein the lever is associated with an engagement member such that rotation of the lever moves the lever camming surface along the one or more rotating body camming surfaces to displace the engagement member, and wherein the engagement member is arranged to provide selective engagement between the moveable trolley and the drive component.
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公开(公告)号：US20210131162A1
公开(公告)日：2021-05-06
申请号：US16973807
申请日：2019-06-20
发明人： George Matthews , Raymond Hawkins
IPC分类号： E05F15/681 , E06B3/48
摘要： A device for a closure drive assembly can include: a moveable trolley, the trolley configured for movement along a track or a rail under drive by a drive component to move a closure between an open position and a closed position, the trolley including a body having a guiding surface; a rotating body having one or more camming surfaces, rotation of the rotating body about a rotation axis being supported by the guiding surface; and a lever having a lever camming surface configured to engage with one or more of the camming surfaces of the rotating body, wherein the lever is associated with an engagement member such that rotation of the lever moves the lever camming surface along the one or more rotating body camming surfaces to displace the engagement member, and wherein the engagement member is arranged to provide selective engagement between the moveable trolley and the drive component.
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