| 摘要 |
PURPOSE:To make parts small in size, and to prevent the abrasion of a contact by forming a structure by which an electric contact which has been provided so as to send and receive an electric signal, between a camera and a lens does not slide, when attaching and detaching the camera and the lens. CONSTITUTION:Electric signal terminals 1a,... of a camera side are provided on a recessed part 16 provided on a camera side bayonet mount member 1. Also, on a lens-side bayonet mount member 2, a projecting part 4a to be fitted to the recessed part 16 of the member 1 is formed, and in its tip part, an electric signal terminal 4b of a lens side is formed so as to abut on the camera side terminal 1a. Also, a camera and a lens are joined in the direction as indicated with an arrow B, and thereafter, the lens-side bayonet mount member 2 is turned in the direction as indicated with an arrow A, and the camera and the lens are locked by locking members 10, 12 and 14. When removing the lens, the mount member 2 is turned in the direction opposite to A. In this way, the electric contact part is prevented from being worn out, can be connected exactly, and the contact part can be made small in size.
|
