Zip line pod arrangement
View Patent ↗A stepwise-adjustable sign hanging device for supporting a sign from an overhead ceiling rail. The sign hanging device comprises a front housing and a rear housing enclosing a rotatably controllable spool arranged to stepwisedly dispense and retract a sign supporting line therefrom. A finger actuatable biased switch is arranged for release and locking of the spool with respect to the housing. A pair of ceiling rail engaging clips are arranged on an upper side of the housing to twistably engage an overhead ceiling rail.
1. A stepwise-adjustable sign hanging device for supporting a sign from an overhead support, said sign hanging device comprising:
a front housing and a rear housing enclosing a rotatably controllable spool arranged to rotatably and stepwisedly dispense and retract a sign supporting line therefrom;
a first biasing arrangement comprising a finger actuatable biased switch for release and locking of said spool with respect to said housing, wherein said biased switch comprises a pivotable lever having a first depressable arm movable about a pivot axis arranged to release a locking foot from a notch in said spool, and wherein said switch includes bias finger extending from said pivot axis arranged to first bias said locking foot in said notch until said first bias is overcome by a greater second bias applied to said first depressible arm; and
a clip arrangement on said housing for twistably engaging said overhead support.
2. The stepwise-adjustable sign hanging device as recited in claim 1 , wherein said switch includes an elongated finger movable in a depressed slot in a wall of said housing.
3. The stepwise-adjustable sign hanging device as recited in claim 1 , wherein said spool has a central opening for locking receipt of a coil spring to permit rewinding of a line thereon.
4. The stepwise adjustable sign hanging device as recited in claim 1 , including a second biasing arrangement comprising a first finger pressably disposed against a housing wall of said device and a second finger pressably disposed against said line wrapped about said spool to insure said line is properly maintained on said spool.
5. The method as recited in claim 1 , wherein said spool has a single foot-engagement notch formed in said rim portion of said spool.
6. The method as recited in claim 5 , including:
adjusting said line extending from said spool by re-winding said line about said spool by action of a tightened coil spring arranged between said spool and an axis mounted within said housing enclosure.
7. The method as recited in claim 6 , including:
biasing said second biasable finger arrangement against said spool continuously, and
biasing said first biasable finger arrangement intermittently to control the length of said line extending from said device.
8. The stepwise adjustable sign hanging device as recited in claim 1 , wherein said overhead support comprises an inverted T-shaped ceiling rail.
9. A method to stepwisedly lift and lower a sign suspended from an adjustable sign hanging device, comprising:
wrapping a sign supporting line around a spool within an housing enclosure;
dis-engaging a first biasable finger arrangement from an engagement notch in a rim portion of said spool so as to permit said spool to rotate about an axis within said housing enclosure;
biasing a second biased finger arrangement against said line wrapped around said spool to maintain said line from entanglement; and
lowering said sign a controlled distance from said sign hanging device.