Driving apparatus
AssigneeCanon Kabushiki Kaisha
InventorEriko NAMAZUE
Life of this patent
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Abstract
A driving apparatus that can be made compact, without increasing the number of component parts and decreasing diameters of a rotating shaft and bearings. When a first unit assembled from a first stator and a first bobbin is coupled to a second unit assembled from a second stator and a second bobbin, engaging portions of the first bobbin are caused by a first switching member to shift from a disengaged state from the first stator to an engaged state with the first stator, and a second switching member, and engaging portions of the second bobbin are caused by a second switching member to shift from a disengaged state from the second stator to an engaged state with the second stator.
Claims6
A driving apparatus comprising:
- a cylindrical magnet circumferentially magnetized;
- a first stator for being excited by a first coil;
- a second stator for being excited by a second coil;
- a first bobbin for fixing said first coil, said first bobbin including at least one first engaging portion for being shifted between a disengaged state from said first stator and an engaged state with said first stator;
- a second bobbin for fixing said second coil, said second bobbin including at least one second engaging portion for being shifted between a disengaged state from said second stator and an engaged state with said second stator;
- at least one first switching member for shifting said first engaging portion of said first bobbin from the disengaged state from said first stator to the engaged state with said first stator when a first unit assembled from said first stator and said first bobbin is coupled to a second unit assembled from said second stator and said second bobbin;
- and
- at least one second switching member for shifting said second engaging portion of said second bobbin from the disengaged state from said second stator to the engaged state with said second stator when the first unit is coupled to the second unit.
Dependencies are inferred from the claim text.