JPS6181636U

JPS6181636U -

Info

Publication number: JPS6181636U
Application number: JP16782884U
Authority: JP
Priority date: 1984-11-02
Filing date: 1984-11-02
Publication date: 1986-05-30

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図及び第２図は従来技術を説明する図、第
３図は可動部材の回転角θに対する作動部材の直
線変位量ｌの特性を表示したグラフで二点鎖線α
は従来特性、第４図及び第５図は本考案の実施例
を説明する図、第６図乃至第９図は本考案の他の
実施例を説明する図である。図中、１０，３０，５０…作動部材、２０，４
０，６０…定速装置、２１，４１，６１…可動部
材、４２ａ，５６…カム面、７０…レンズ駆動部
材、８０…電磁石、９０…撮影レンズ、１００…
絞り設定部材、１１０…シヤツタ開閉部材、１２
０…シヤツタ開放部材。 1 and 2 are diagrams for explaining the prior art, and FIG. 3 is a graph showing the characteristics of the linear displacement amount l of the actuating member with respect to the rotation angle θ of the movable member, and the dashed-dotted line α
4 and 5 are diagrams for explaining an embodiment of the present invention, and FIGS. 6 to 9 are diagrams for explaining other embodiments of the present invention. In the figure, 10, 30, 50...operating member, 20, 4
0,60...Constant speed device, 21,41,61...Movable member, 42a, 56...Cam surface, 70...Lens drive member, 80...Electromagnet, 90...Photographing lens, 100...
Aperture setting member, 110... Shutter opening/closing member, 12
0...Shutter release member.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

回転を等速度に規制された回転体に当接し、そ
の回転体により伝動され直線変位可能な作動部材
を有するカメラに於いて、上記作動部材若しくは
回転体の何れか一方の当接部分を該作動部材の直
線変位を等速度に調整する曲率で形成されるカム
面と成したことを特徴とするカメラの作動部材調
速機構。 In a camera that has an actuating member that is in contact with a rotating body whose rotation is regulated to a constant speed and that can be linearly displaced by being transmitted by the rotating body, the abutting portion of either the actuating member or the rotating body is actuated. A speed regulating mechanism for an operating member of a camera, comprising a cam surface formed with a curvature that adjusts the linear displacement of the member to a constant velocity.