| US 7,495,851 B2 | ||
| Moving apparatus | ||
| Shunsuke Ota, Utsunomiya (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Mar. 07, 2008, as Appl. No. 12/44,825. | ||
| Claims priority of application No. 2007-066879 (JP), filed on Mar. 15, 2007; and application No. 2008-025236 (JP), filed on Feb. 05, 2008. | ||
| Prior Publication US 2008/0225364 A1, Sep. 18, 2008 | ||
| Int. Cl. G02B 7/02 (2006.01); G02B 15/14 (2006.01) | ||
| U.S. Cl. 359—819 [359/694; 359/700] | 2 Claims |
| 1. A moving apparatus comprising:
a cylindrical cam barrel including a cam groove;
a moving member configured to be rotated relative to the cam barrel and moved in a perpendicular direction that is an axis
direction of the cam barrel; and
a bearing for supporting a support shaft fixed on the moving member with the cam groove, wherein when viewed from the axis
direction of the support shaft, a contact position between the bearing and the cam groove is located closer to the side of
the rotation center axis of the moving member than the axis line of the support shaft under force exerted in the axis direction
of the cam barrel against the moving member,
wherein a straight line connecting the contact position and the rotation center axis is substantially parallel on average
to the axis line of the support shaft in a horizontal plane passing through the contact position, within a range of movement
when the bearing and the support shaft are moved along the cam groove.
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