Support assembly for a retractable device
OwnerJohn B. Roseninventor
Life of this patent
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Abstract
A support assembly for supporting a retractable device includes a frame, at least one arm movably mounted on the frame for carrying the device between a retracted position for stowing the device, and an extended position for presenting the device, and a reactionator couple operatively connected to the arm for resisting, in part, against the arm when it is moved from the extended position to the retracted position, thereby slowing the rate at which the device is retracted.
Claims21
A support assembly for supporting a retractable device comprising:
- a frame;
- an arm pivotally mounted on the frame for carrying the device, the arm being movable between a retracted position for stowing the device, and an extended position for presenting the device;
- and
- a reactionator couple further connecting the frame and the arm for resisting movement of the arm substantially throughout movement of the arm from the extended position to the retracted position, thereby slowing the rate at which the device may be retracted.
A support assembly for supporting a retractable screen comprising:
- a frame;
- a screen-carrying arm pivotally mounted on the frame for pivot about a first pivot axis between a retracted position for stowing the screen, and an extended position for presenting the screen;
- and
- a reactionator couple slidably mounted on the arm, the reactionator coupler including a force-absorbing member which interconnects the frame and the arm and is controllably collapsible for slowing the arm's movement when the arm is pivoted from the extended position to the retracted position, thereby slowing the rate at which the screen may be retracted.
A retractable projection screen support comprising:
- a frame;
- a pair of inwardly-foldable, bi-directionally-movable opposed arms, each pivotally mounted on the frame for pivot about a corresponding first pivot axis between a retracted position for stowing the screen, and an extended position for presenting the screen;
- at least one glide pivotally connected to the time for pivot about a second pivot axis spaced from the first pivot axis and mounted for reciprocal movement along a glide track mounted on one of the arms;
- and
- at least one pressurized retraction decelerator coupled between the glide member and at least one of the opposed arms, the retraction decelerator including a reciprocally-movable stop which abuts the glide member under pressure to yieldably resist movement of the support from the extended position to the retracted position.
In a screen presentation device which includes a frame and a retractable screen mounted on the frame for biased movement between a retracted position and a presented position, an improvement comprising:
- an articulable arm pivotally mounted on the frame for moving the screen between the retracted and presented positions, the arm being pivotal about a first axis;
- and
- a retraction-controlling element operatively interconnected between the frame and the arm, the retraction controlling element including a pivot mounted on the frame for pivot about a second axis spaced from the first axis, a moveable guide connected to the pivot and mounted for movement along a glide track of the arm, and a shock absorber mounted on the arm and having a pressurized stopper which engages the glide to resist movement of the arm when the arm moves the screen from the extended position to the retracted position.
Dependencies are inferred from the claim text.