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US 2011/0179720 A1Published application
Cane bolt with spring and slotted stop
AssigneeSjirk W. Zijlstra
InventorSJIRK W. ZIJLSTRA
Life of this patent
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Abstract
A cane bolt is spring biased up to allow a movable barrier with which the cane bolt is engaged to move. The cane bolt can be pushed down into a strike hole to prevent movement of the barrier. To hold the cane bolt down, a pin on the cane bolt abuts a slotted stop on the barrier. To raise the cane bolt, the cane bolt is simply rotated so that the pin aligns with and thus passes through the slot, allowing the spring to urge the cane bolt up.
Claims20
Assembly comprising:
- elongated rigid cane bolt engageable with a movable barrier to selectively hold the movable barrier stationary with respect to a fixed barrier, the cane bolt defining a long axis and a pin extending away from the long axis;
- spring coupled to the cane bolt to bias the cane bolt to a raised position in which a bottom end of the cane bolt is above the ground;
- and
- a stop engageable with the movable barrier and defining a central opening through which the cane bolt moves but through which the pin cannot move, the stop also defining at least one slot through which the pin can move when aligned with the slot, wherein the cane bolt is manually movable against the spring to a lowered position, the cane bolt being rotatable to assume an angular orientation in which the pin is below the stop and is not aligned with the slot to thereby cause the pin to abut a bottom surface of the stop under the influence of the spring while preventing the spring from raising the cane bolt from the lowered position, the cane bolt being rotatable to assume an angular orientation in which the pin is aligned with the slot to thereby permit the pin to pass through the slot to in turn permit moving the cane bolt between the raised and lowered positions.
1 more element
Barrier assembly, comprising:
- fixed barrier;
- movable barrier movable relative to the fixed barrier between an open configuration and a closed configuration;
- an elongated rigid holder vertically disposed on the movable barrier and movable between a raised position and a lowered position;
- a resilient member coupled to the holder to urge the holder toward the raised position;
- and
- an interference element positioned to prevent the holder from being urged away from the lowered position when the holder assumes a first angular orientation with respect to the movable barrier and to allow the holder to be urged away from the lowered position when the holder assumes a second angular orientation with respect to the movable barrier.
3 more elements
Cane bolt assembly comprising:
- cane bolt;
- stop through which the cane bolt moves;
- pin coupled to the cane bolt to move therewith, the pin passing through the stop when the cane bolt assumes a first angular orientation and not passing through the stop when the cane bolt assumes a second angular orientation.
Dependencies are inferred from the claim text.