FLUX AI Image Generated by Recraft V3

A black-and-white hand-drawn idea sketch of a very simple, minimal-structure laundry drying rack for active seniors. The design should avoid the traditional large, complicated rectangular frame. Instead, show a lightweight, simplified structure with these features: 1. Easy automatic height adjustment system with minimal moving parts. 2. Extendable horizontal rods for adjustable width, but in a very simple sliding form. 3. Stable legs with wide rubber pads for balance. 4. A one-touch button to fold or unfold the frame easily. 5. Small hidden wheels at the base for effortless movement and a safe locking system. Style: inventor’s notebook style, simple technical sketch with arrows and short Korean labels near each feature. Layout: multiple small idea variations on one page, s