■BB BOX Modern automata Yoshihiro Banba つめ車 Ratchet wheel
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つめ歯車 Ratchet wheel

It is the mechanism which conducts a exercise intermittently with the click and by it it is made not to make reverse.

■ つめ歯車
■ Click and ratchet wheel
When turning in 1, it sends the tooth of the cogwheel by one sheet and the click ( the orange ) rests to the direction of the arrow.
The click ( green ) is for the reverse prevention.

参考写真 The reference photograph
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