  A mechanism of non-magnetic Kondo effect is proposed on the basis of a
multiorbital Anderson model coupled with dynamical Jahn-Teller (JT) phonons. An
electron system coupled dynamically with JT phonons has a vibronic ground state
with double degeneracy due to clockwise and anti-clockwise rotational modes
with entropy of $\log 2$. When a temperature is lower than a characteristic
energy to turn the rotational direction, the rotational degree of freedom is
eventually suppressed and the corresponding entropy $\log 2$ is released,
leading to quasi-Kondo behavior. We discuss possible relevance of this
quasi-Kondo phenomenon to electronic properties of filled skutterudites.
