Binocular with rotation transmitting system
AssigneeAsahi Kogaku Kogyo Kabushiki Kaisha
InventorMitsuru Ichikawa
Life of this patent
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Abstract
A binocular includes first and second swingable bodies respectively accommodating telescope systems. The binocular further includes two drive rings respectively provided to the swingable bodies and an operation knob. A transmission unit is provided to transmit the rotation of the operation knob to the drive rings. The transmission unit includes two pairs of a first gear and a second gear. The first gear and the second gear engage with the other so that a contact point of pitch circles thereof is located on each of the swing axis.
Claims12
A rotation transmitting system comprising:
- two swingable bodies respectively swingable about two parallel swing axes;
- two drive rings respectively rotatably provided to said swingable bodies;
- an operation member which is operated to rotate said drive rings;
- and
- a transmission unit which transmits the rotation of said operation member to said drive rings, said transmission unit including two pairs of rotating bodies, a first rotating body of each pair being linked to said operation member and a respective second rotating body of each pair being linked to a respective said drive ring,
- wherein said first and second rotating bodies of each pair engage with each other so that the engaging points of said first and second rotating bodies of each pair lie on said swing axes of said swingable bodies, respectively.
A rotation transmitting system comprising:
- first and second swingable bodies swingable about respective first and second swing axes;
- two drive rings respectively provided to said swingable bodies;
- an operation member which is operated to rotate said drive rings;
- and
- a transmission unit which transmits the rotation of said operation member to said drive rings, said transmission unit including two pairs of a first gear and a second gear,
- wherein said first and second gears of each pair engage with each other so that contact points of pitch circles of said first and second gears of each pair lie on the first and second swing axes, respectively.
Dependencies are inferred from the claim text.