JPS63559U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the main parts of a rotary shutter device for a video camera, seen from the side, showing an embodiment of the present invention, and Fig. 2 is a sectional view of the main parts of the rotary shutter device for a video camera shown in Fig. 1, seen from the front. 3 is a sectional view of the main parts as seen above, and FIG. 4 is a perspective view of the second lever plate in the rotary shutter device of the video camera shown in FIGS. 1 and 2 above. FIG. 5 is a perspective view of a switch lever in the rotary shutter device of a video camera shown in FIG. FIG. 7, a sectional view of a main part showing an example of a rotary shutter device for a video camera, is a front view of the rotary shutter plate of the rotary shutter device for a video camera shown in FIG. 6. 11... Motor, 12... First lever plate (lever plate), 13... Second lever plate, 14... Rotary shutter plate, 16... First elastic member,
17...Switch lever, 21...Solenoid,
22... Plunger, 26... Second elastic member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a video camera rotary shutter device that has a rotary shutter plate for intermittent exposure that can be inserted and removed from the imaging optical path of the imaging device, when the power switch is turned off, The above rotary
A rotary shutter device for a video camera, comprising a retracting means for forcibly retracting a shutter plate from an imaging optical path. (2) Rotary type with slit for intermittent exposure
a shutter plate, a first lever plate rotatably supported by the camera body and rotatably supporting the rotary shutter plate on one arm; and a first lever plate rotatably supported coaxially with the first lever plate. , a second lever plate for inserting and removing the rotary shutter plate into and from the imaging optical path via the first lever plate, and an elastic member for biasing the rotary shutter plate in a direction to retreat from the imaging optical path. , the first lever plate and the second lever plate.
a forcing member urged to integrate the first lever plate with the first lever plate, and a forcing member fixed to the first lever plate;
A rotary shutter device for a video camera according to claim 1, further comprising a motor for rotationally driving the rotary shutter plate. (3) A video according to claim 1 of the utility model registration claim, characterized in that it consists of a switch lever that transmits the opening and closing of the power supply to a rotary shutter device, and an elastic member that biases the switch lever in one direction. Camera shutter device. (4) A rotary shutter plate having a slit for intermittent exposure, rotatably supported by the camera body,
a lever plate that rotatably supports the rotary shutter plate in one arm and inserts and removes the rotary shutter plate into the imaging optical path; and an elastic member that urges the rotary shutter plate in a direction to retreat from the imaging optical path. ,
The rotary shutter device for a video camera according to claim 1, further comprising a motor fixed to the lever plate and rotating the rotary shutter plate. (5) A claim for utility model registration characterized in that it is equipped with a detection means that directly or indirectly detects the position of the rotary shutter plate, and a biasing means consisting of a solenoid plunger that is linked to the energization state of the power supply. A rotary shutter device for a video camera as described in Scope 1.