JPS61198940U

JPS61198940U -

Info

Publication number: JPS61198940U
Application number: JP8213485U
Authority: JP
Priority date: 1985-05-31
Filing date: 1985-05-31
Publication date: 1986-12-12

Description

[Brief explanation of the drawing]

第１図は本考案の基本構成を示す機能ブロツク
図、第２図は本考案の実施例を示すブロツク図、
第３図は同上実施例の動作を示すフローチヤート
、第４図は本考案に使用可能なパトローネ検出兼
モード検出スイツチの例を示す平面図、第５図は
同上側面断面図である。１１……フイルム給送用モータ、１２……フイ
ルム検出スイツチ、１３……給送スイツチ、１４
……パトローネ検出を兼ねたモード検出スイツチ
、１５……カウンタ、１６……フイルム駒数判断
部、１７……フイルムリーダー巻取り制御部、１
８……レリーズ禁止部。 FIG. 1 is a functional block diagram showing the basic configuration of the present invention, FIG. 2 is a block diagram showing an embodiment of the present invention,
FIG. 3 is a flowchart showing the operation of the embodiment, FIG. 4 is a plan view showing an example of a cartridge detection/mode detection switch that can be used in the present invention, and FIG. 5 is a sectional side view of the same. 11... Film feeding motor, 12... Film detection switch, 13... Feeding switch, 14
. . . Mode detection switch that also serves as cartridge detection, 15 . . . Counter, 16 . . . Film frame number judgment section, 17 .
8...Release prohibited section.

Claims

[Scope of utility model registration request]

In a pre-winding camera that switches to a shooting mode that rewinds the film one frame at a time into the cassette after a pre-winding mode in which the film is pulled out from the cartridge, the presence or absence of the film on the film feeding motor and the aperture surface is detected. and a film feed switch that operates in conjunction with the rotation of the film feed motor to output a signal corresponding to the film feed when the film detect switch detects that a film is present. , a mode detection switch that switches according to the pre-winding mode and shooting mode, and when this mode detection switch detects the shooting mode and the film detection switch detects that there is film, the feed switch a counter for counting signals; a film frame number determining section for determining from the counted value of the counter whether a prescribed number of frames have been taken; and a film frame number determining section for determining whether a prescribed number of frames have been taken. When the film leader winding control section winds the film leader section until the output signal of the film detection switch indicates no film, and the film frame number judgment section judges that a specified number of frames have been taken, the release of the camera is prohibited. A device for preventing erroneous photography of a pre-winding camera, comprising a release inhibiting part.