JPS6376834U

JPS6376834U -

Info

Publication number: JPS6376834U
Application number: JP17141186U
Authority: JP
Priority date: 1986-11-10
Filing date: 1986-11-10
Publication date: 1988-05-21

Description

[Brief explanation of the drawing]

図面は本考案の実施例を示し、第１図は交換レ
ンズを取り外した状態を示すカメラ本体の斜視図
、第２図はスイツチ装置を示すカメラ本体の部分
的な拡大横断平面図、第３図は交換レンズの取り
付け過程を示す第２図同様の横断平面図、第４図
は交換レンズの取り外し過程を示す第２図同様の
横断平面図、第５図は他の実施例を示す第２図同
様の横断平面図、第６図は交換レンズとカメラ本
体との電気接続部を示す簡略図である。１１……カメラ本体、１２……マウントリング
、１３……ロツクピン、１４……ロツク解除ボタ
ン、１５……連動スイツチ、１７……ロツク解除
レバー、１９……係止座板、２４……交換レンズ
、２５……連動スイツチ。 The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the camera body with the interchangeable lens removed, FIG. 2 is a partially enlarged cross-sectional plan view of the camera body showing the switch device, and FIG. 3 is a perspective view of the camera body with the interchangeable lens removed. 4 is a cross-sectional plan view similar to FIG. 2 showing the process of attaching the interchangeable lens, FIG. 4 is a cross-sectional plan view similar to FIG. 2 showing the process of removing the interchangeable lens, and FIG. 5 is FIG. 2 showing another embodiment. A similar cross-sectional plan view, FIG. 6, is a simplified diagram showing the electrical connection between the interchangeable lens and the camera body. 11... Camera body, 12... Mount ring, 13... Lock pin, 14... Lock release button, 15... Interlocking switch, 17... Lock release lever, 19... Locking seat plate, 24... Interchangeable lens , 25... linked switch.

Claims

[Scope of utility model registration request]

The mounting position of the interchangeable lens is determined by the advancement of a lock pin having a protruding force, and the removal of the interchangeable lens is permitted by retraction of the lock pin by external operation, and the interchangeable lens is positioned. In a camera having a configuration in which the electric circuits on the camera body side and the lens side are connected, the power supply circuit is connected while maintaining the first state while the lock pin advances, and changes to the second state in conjunction with the backward movement of the lock pin. 1. A switch device for a camera, characterized in that an interlocking switch member is provided to cut off a power supply circuit in order to prevent electrical erroneous signals generated during the operation of attaching and detaching an interchangeable lens.