Track- or rail-mounted closure drive assembly
AssigneeAutomatic Technology (Australia) Pty Ltd
InventorsGeorge Matthews, Raymond Hawkins
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A device for a track- or rail-mounted closure drive assembly configured to be driven by a motor, the device comprising:
- a lever and cam arrangement including a lever, the lever and cam arrangement configured to drive an engagement member between an engaged position and a disengaged position, the engaged position allowing drive of a closure by the motor, the disengaged position disconnecting the motor from the closure;
- and
- a rotating body separate from the lever, the lever being able to rotate with respect to the rotating body, the rotating body including one or more camming surfaces and one or more peripheral surfaces;
- wherein:
- operation of the lever is configured to cause rotation of the rotating body by way of the one or more camming surfaces,
- rotation of the rotating body is configured to drive movement of the engagement member by way of the one or more camming surfaces, and
- the peripheral surfaces include 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.
A device for a track- or rail-mounted closure drive assembly, the device comprising:
- a moveable trolley associated with a closure, the trolley configured for movement along the track or rail under drive by a drive component to move the closure between an open position and a closed position;
- an engagement member arranged to provide selective engagement between the trolley and the drive component;
- a mechanism configured to move the engagement member between an engaged position and a disengaged position, the engaged position allowing drive of the closure by way of the drive component, the mechanism having a user actuation means for manipulation by a user;
- and
- a latch configured to latch the trolley to the track or rail when it is in a position associated with the closed position of the closure, the latch moveable between a latched position and an unlatched position under operation of the mechanism, such that manipulation of the user actuation means to move the engagement member into the disengaged position also has the effect of moving the latch into the unlatched position,
- wherein the mechanism includes a rotating body with camming surfaces provided on a periphery of the rotating body and arranged to engage with an element associated with the latch and to move the latch between the latched position and the unlatched position.
Dependencies are inferred from the claim text.