Drive device

Abstract

Abstract Translated from Japanese 【課題】被駆動部材の移動量の変動を低減できる駆動装置を提供すること。 【解決手段】圧電素子１の伸縮に応じて駆動軸２を往復移動させ、駆動軸２に摩擦係合される被駆動部材３を駆動軸２に沿って移動させる駆動装置であって、駆動軸２に対する被駆動部材３の位置に応じて異なる駆動信号を圧電素子１に供給して、圧電素子１の伸縮制御を行う。これにより、同一の駆動信号で圧電素子１を駆動したときに駆動軸２に対する位置によって被駆動部材３の移動量が異なる場合であっても、その被駆動部材３の移動量の変動を抑制することができる。 【選択図】図１ A drive device that can reduce fluctuations in the amount of movement of a driven member. A drive device that reciprocates a drive shaft according to expansion and contraction of a piezoelectric element and moves a driven member that is frictionally engaged with the drive shaft along the drive shaft. 2 is supplied to the piezoelectric element 1 according to the position of the driven member 3 with respect to 2 to control expansion and contraction of the piezoelectric element 1. Thereby, even when the movement amount of the driven member 3 varies depending on the position with respect to the drive shaft 2 when the piezoelectric element 1 is driven by the same drive signal, the fluctuation of the movement amount of the driven member 3 is suppressed. be able to. [Selection] Figure 1

Inventors

• 👤 Haruo Onozuka
• 👤 春夫 小野塚
• 👤 Tatsuo Saito
• 👤 竜夫 斉藤
• 👤 Katsuji Ozawa
• 👤 勝司 小澤
• 👤 Yukio Okazaki
• 👤 行男 岡崎

Bibliographic Details