bamboo basket
筐 centers on a container made from woven bamboo: a basket or box-like vessel.
筐 combines 竹 (bamboo) with 匡, which likely contributes the sound and the idea of a container. The character reflects a bamboo basket or box.
The top 竹 is bamboo, and the bottom 匡 looks like a container. Picture a sturdy bamboo basket woven to hold things.
For キョウ, imagine a Kyoto craftsman weaving a bamboo basket: Kyoto -> キョウ, and the basket is made from bamboo.