This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
箖 combines 竹 (bamboo) and 林 (grove). The exact historical development is uncertain, but it likely referred to a type of bamboo or a bamboo grove.
The top 竹 suggests bamboo, and the bottom 林 suggests a grove. Picture a dense bamboo grove: 箖.
For リン, imagine a ring of bamboo groves: ring -> リン, and the bamboo grove forms a circle.