Hinge and lock mechanism for roll-out solar array
A roll-out solar array includes a first mandrel having first and second ends and a second mandrel having first and second ends. A hinge extends between the first and second mandrels, such that the roll-out solar array can transition between a stowed position where the mandrels are in a substantially parallel configuration and a deployed position where the mandrels are in a series configuration. A latch may be provided to lock the roll-out solar array in the stowed configuration.
1. A roll-out solar array comprising:
a first mandrel having a length extending between a first and second end thereof, the first mandrel being substantially cylindrical and having a longitudinal axis upon which the first mandrel is able to rotate;
a second mandrel having a length extending between a first and second end thereof, the second mandrel being substantially cylindrical and having a longitudinal axis upon which the second mandrel is able to rotate;
a first elastic roll-out boom having a plurality of configurations ranging from a stowed configuration wherein the first elastic roll-out boom is rolled onto the first mandrel to a deployed configuration wherein the first elastic roll-out boom is fully extended, the first elastic roll-out boom having a first end and a second, opposing, end wherein a longitudinal axis is defined between the first and second ends of the first elastic roll-out boom when the first elastic roll-out boom is in the deployed configuration; and
a second elastic roll-out boom having a plurality of configurations ranging from a stowed configuration wherein the second elastic roll-out boom is rolled onto the second mandrel to a deployed configuration wherein the second elastic roll-out boom is fully deployed, the second elastic roll-out boom having a first end and a second, opposing, end wherein a longitudinal axis is defined between the first and second ends of the second elastic roll-out boom when the second elastic roll-out boom is in the deployed configuration;
a first hinge attached to the first end of the first mandrel and the first end of the second mandrel and extending therebetween;
a first root support structure having a first end and an opposing second end, the first root support structure attached to the first elastic roll-out boom;
a second root support structure having a first end and an opposing second end, the second root support structure attached to the second elastic roll-out boom; and
a second hinge attached to the first end of the first root support structure and a first end of the second root support structure, the second hinge configured to articulate in order to allow transition of the roll-out solar array between the stowed and deployed configurations;
a latch fixedly attached to the second root structure and releasably attached to the first root structure, such that when the latch is engaged with the first root structure the roll-out solar array is locked in the stowed configuration; and
a latch release for disengaging the latch from the first root support structure, wherein the roll-out solar array has a first, stowed configuration and a second, deployed, configuration, further wherein when in the stowed configuration the first mandrel and second mandrel are positioned in parallel arrangement to form a compact structure, and when in the deployed configuration the first mandrel and second mandrel are positioned in series, the articulation of said hinge allowing transition between the stowed and deployed configurations of the roll-out solar array, and further wherein the latch release comprises a rotatable handle.