Mechanical gripper allows drones to hang from objects

December 9, 2020 0 Comments

Tiny quadcopter drones, or micro air vehicles (MAVs), have notoriously short battery lives. So, if they can “perch” somewhere instead of hovering in mid-air, more power to them. A new gripper mechanism has been designed with that in mind.

Developed by a team of engineers at Colorado State University, the device is mounted on top of a third-party MAV. It has a vertical plunger-like pad in the middle, which is mechanically linked to two diagonally raised folding arms, one on either side. At the top end of each arm is an inward-facing gripper pad.

When the MAV flies up against the underside of a horizontal object such as a tree branch, pipe or railing, the force of impact pushes the pad down. This in turn causes the two arms to fold inward, clasping the object, and holding the drone in place. Its propeller motors can then be turned off until it needs to fly again.

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