Traditional linear actuators, like hydraulic cylinders or scissor lifts, face serious limitations: they’re bulky, can’t collapse very small, and often lack the strength or stability needed for compact or mobile applications. They also can’t form enclosed tubes, limiting their use in housing or protecting things like wires or fluids.
This invention solves those problems by introducing a hollow segmented linear actuator—a collapsible, rigid tube made from multiple interlocking segments. Unlike older designs that only use two sides, this system uses four or more segmented members arranged around a central axis, locking together like puzzle pieces. These segments use specially shaped tabs—like flared L-shaped hooks or interlocking links—to form a strong, stable column when extended.
What makes this actuator novel is its unique method of interlocking, which allows it to form a rigid, hollow, and self-supporting tube that can extend and retract into a compact case. It can be assembled from standard chain components, reducing cost and simplifying manufacturing. The actuator resists buckling without extra stabilizers and maintains strength even when fully extended.
The benefits are significant
- Stronger than traditional actuators for its size.
- Highly compact when retracted, saving space.
- Can lift, push, or pull objects in any direction.
- Hollow interior allows it to carry power cables, fluids, or tools.
Broader impact
This technology could be used in industrial automation, robotics, aerospace, and even home hardware—anywhere compact, powerful movement is needed. Its efficiency, strength, and adaptability make it a smart alternative to bulkier, less stable systems, offering a step forward in sustainability and smart design.