JPS6230252U

JPS6230252U -

Info

Publication number: JPS6230252U
Application number: JP12009685U
Authority: JP
Priority date: 1985-08-05
Filing date: 1985-08-05
Publication date: 1987-02-23

Description

[Brief explanation of drawings]

第１図は本考案の電気的接続装置の一実施例を
適用してなるビデオカメラ本体と交換レンズとを
対応させて示す斜視図、第２図は交換レンズの背
面部分を示す斜視図、第３図は交換レンズ装着前
の状態を示す図、第４図は交換レンズが装着され
たときの可動接点ピンユニツトと接点基板とが電
気的に接続された状態を示す図、第５図Ａ，Ｂ，
Ｃは夫々可動接点ピンユニツトを拡大して示す平
面図、正面図、左側面図、第６図及び第７図は夫
々第５図Ｂ中―線及び―線に沿う断面矢
視図、第８図及び第９図は夫々作動部材が回動し
接点ピンが突出した状態を示す、第６図及び第７
図に対応する断面図、第１０図は本考案の電気的
接続装置の別の実施例を適用してなるビデオカメ
ラ本体と交換レンズとを対応させて示す斜視図、
第１１図は交換レンズの背面部分を示す斜視図、
第１２図は交換レンズ装着前における可動接点ピ
ンユニツトの状態を示す図、第１３図は交換レン
ズが装着されたときの可動接点ピンユニツトと接
点基板とが電気的に接続された状態を示す図、第
１４図Ａ，Ｂ，Ｃは夫々可動接点ピンユニツトを
拡大して示す平面図、正面図、側面図、第１５図
Ａ，Ｂは従来の電気的接続装置の１例を示す図で
ある。１０，１０Ａ…ビデオカメラ本体、１０ａ，１
０Ａａ，１１ａ，１１Ａａ…面、１１，１１Ａ…
交換レンズ、１１ｂ…側面、１２…レンズ側マウ
ント、１３…カメラ本体側マウント、１４…可動
接点ピンユニツト、１５…接点基板、２０…ケー
ス、２１…絶縁ケース、２２_１〜２２_８…接点ピ
ン、２２_１ａ〜２２_８ａ…頭部、２３…可動板、
２４…作動部材、２４ｃ，４０ｃ，４０ｄ…被作
用部、２５…導電性板ばね、２７…プリント回路
基板、２８…板ばね、２９…パネル、３１_１〜３
１_８…接点、４１…凹部。 FIG. 1 is a perspective view showing the correspondence between a video camera body and an interchangeable lens to which an embodiment of the electrical connection device of the present invention is applied; FIG. 2 is a perspective view showing the back side of the interchangeable lens; Figure 3 shows the state before the interchangeable lens is attached, Figure 4 shows the state in which the movable contact pin unit and the contact board are electrically connected when the interchangeable lens is attached, and Figures 5A and B. ，
C is an enlarged plan view, front view, and left side view of the movable contact pin unit; FIGS. 6 and 7 are cross-sectional views taken along lines - and - in FIG. 5B; FIG. and FIG. 9 show the state in which the actuating member rotates and the contact pin protrudes, respectively, and FIGS. 6 and 7 respectively.
10 is a perspective view showing the correspondence between a video camera body and an interchangeable lens to which another embodiment of the electrical connection device of the present invention is applied;
FIG. 11 is a perspective view showing the back part of the interchangeable lens;
FIG. 12 is a diagram showing the state of the movable contact pin unit before the interchangeable lens is attached, FIG. 13 is a diagram showing the state in which the movable contact pin unit and the contact board are electrically connected when the interchangeable lens is attached, and FIG. 14A, B, and C are enlarged plan, front, and side views of a movable contact pin unit, respectively, and FIGS. 15A and 15B are diagrams showing an example of a conventional electrical connection device. 10,10A...Video camera body, 10a,1
0Aa, 11a, 11Aa...plane, 11, 11A...
Interchangeable lens, 11b... Side surface, 12... Lens side mount, 13... Camera body side mount, 14... Movable contact pin unit, 15... Contact board, 20... Case, 21... Insulating case, 22 ₁ to 22 ₈ ... Contact pin, 22 ₁ a to 22 ₈ a...head, 23...movable plate,
24... Operating member, 24c, 40c, 40d... Actuated part, 25... Conductive leaf spring, 27... Printed circuit board, 28... Leaf spring, 29... Panel, 31 ₁ to 3
1 ₈ ...Contact, 41...Recess.

Claims

[Scope of utility model registration request]

With the interchangeable lens mounted on the camera body by engaging the lens side mount with the camera side mount of the video camera body, the interchangeable lens is inserted through the movable contact pin and the contact that the movable contact pin presses against. A device for electrically connecting a plurality of movable contact pins to a camera body, a support member movably supporting the plurality of movable contact pins, a spring member biasing the movable contact pins in a retracting direction, and a device for electrically connecting the movable contact pins to the camera body. The actuating member has an actuated part to which a displacement force is applied when installed, and elastically projects the movable contact pin against the spring member by displacement of the actuated part, and the movable contact pin moves in and out. A movable contact pin unit, in which the movable contact pin is normally recessed, is provided on an opposing surface of either the camera body or the interchangeable lens and at a position outside the mount. A contact with which the movable contact pin presses is provided on the other opposing surface so as to correspond to the movable contact pin, and the operated part is displaced by the interchangeable lens or the video camera body immediately before the operation of attaching the interchangeable lens is completed. When a force is applied, the movable contact pin protrudes from the unit and comes into pressure contact with the contact point with a predetermined contact pressure, and immediately after the start of the operation to remove the interchangeable lens, the action of the displacement force on the affected part is released, and the An electrical connection device between an interchangeable lens and a video camera body, in which a movable contact pin is inserted into the unit.