also: ばねじかけ
noun, noun which may take the genitive case particle 'no'
clockwork mechanism; spring-driven device
Refers to a mechanism powered by a wound spring, such as in old toys, clocks, or music boxes. Often used attributively with の.
This old music box runs on a clockwork mechanism.
I collect clockwork toys.
Same rare kanji form, read as ばねじかけ; even less common.