Structural tape deployment apparatus
A tape drive comprises a roll of a tape that can be extended from a rolled state to an extended state. The tape includes a rigid material that supports the tape and a pliable material disposed at least partially on one side of the tape. A compression roller is disposed on a side of the tape and is biased toward the tape. A drive roller is disposed on the other side of the tape. The drive roller comprises an uneven surface that mechanically engages the pliable material of the tape, without protruding through the tape, as a result of the bias of the compression roller forcing the tape toward the drive roller. A motor turns the drive roller to extend the tape from the roll as the protrusions of the uneven surface of the drive roller mechanically engage the pliable material of the tape as the drive roller turns.
1. A structural tape deployment apparatus, comprising
a structural tape comprising an aperture therein and comprising an uneven surface layer;
a drive roller comprising a pliable surface layer mechanically engaged by the uneven surface layer of the tape to mechanically drive the tape between rolled and extended positions as the drive roller turns; and
a limit switch that extends from a first position not engaging the aperture in the tape to a second position that engages the aperture in the tape to fix the tape in a specified position.
2. The structural tape deployment apparatus of claim 1 , further comprising a compression roller that forces the tape toward the drive roller to mechanically engage the pliable surface layer of the drive roller with the uneven surface layer of the tape.
3. The structural tape deployment apparatus of claim 2 , further comprising at least one spring that biases the compression roller toward the drive roller to force the tape toward the drive roller to mechanically engage the pliable surface layer of the drive roller with the uneven surface layer of the tape.
4. The structural tape deployment apparatus of claim 1 , further comprising a motor that turns the drive roller.
5. The structural tape deployment apparatus of claim 4 , further comprising a series of gears that couple the motor to the drive roller such that a turning force produced by the motor is transferred to the drive roller to turn the drive roller.
6. The structural tape deployment apparatus of claim 1 , wherein the pliable surface layer of the drive roller comprises an elastomer.
7. The structural tape deployment apparatus of claim 1 , wherein the tape comprises a rigid material, and wherein the uneven surface layer of the tape is disposed on at least a portion of at least one surface of the rigid layer of the tape.
8. The structural tape deployment apparatus of claim 1 , wherein the pliable surface layer of the drive roller is not continuous across a surface of the drive roller engaged by the uneven surface of the tape.
9. The structural tape deployment apparatus of claim 1 , wherein the pliable surface layer comprises a material having a Shore A rating of between 25 and 75.
10. The structural tape deployment apparatus of claim 9 , wherein the pliable surface layer comprises a material having a Shore A rating of about 50.
11. The structural tape deployment apparatus of claim 1 , wherein the uneven surface of the tape comprises a knurled surface on the tape.
12. The structural tape deployment apparatus of claim 1 , wherein the uneven surface of the tape comprises a particulate bonded to the tape.
13. The structural tape deployment apparatus of claim 1 , wherein the pliable surface layer comprises a plurality of strips of a pliable material applied to a surface of the drive roller.
14. The structural tape deployment apparatus of claim 1 , further comprising one or more guides that support the tape as the tape is mechanically driven between rolled and extended positions.
15. The structural tape deployment apparatus of claim 1 , wherein the limit switch comprises a plunger that is biased towards the tape, the bias of the plunger extending the plunger into the aperture in the tape.
16. The structural tape deployment apparatus of claim 1 , wherein the structural tape is stored in a flat state in the rolled position and transitions to a different state in the extended position.
17. The structural tape deployment apparatus of claim 1 , wherein the structural tape is a lenticular tape.