Lumbar support structure and lower-limb strength-assist robot suit using the same.

Lower-limb strength-assist robot suit with multi-directional pivoting support rods for lumbar support

This technology utilizes a multi-joint pivoting support structure linked to the hip joint of a wearable robot to track human movement. It features a bolt-fastened height-adjustable connection plate and a gear-meshing pivot joint to accommodate variations in the wearer's body type and height.

Conventional wearable robot lumbar support structures are often fixed or complex to fasten, causing discomfort and failing to adapt flexibly to changes in the user's body dimensions. Furthermore, the robot's movement during walking often interferes with the human body, hindering natural activity.

This technology features a 3-degree-of-freedom pivoting support structure consisting of L-shaped pivot rods, height-adjustable connection plates, and left/right lumbar supports capable of horizontal axis rotation. It also integrates an exoskeleton for lower-limb strength assistance, an MR damper, and a power transmission cutoff system using levers.

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Key Features:

• L-shaped left and right connecting rods pivotally linked to the hip joint of the exoskeleton in a walking assist device, centered on a vertical axis
• Left and right connection plates that can be fastened by adjusting the height relative to the other end of the L-shaped connecting rods
• Left and right lumbar supports connected perpendicularly to the connection plates and linked to pivot around a vertical axis
• MR damper unit connected to the hip joint to selectively adjust damping force during rotation of the lower skeleton

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