CN2174713Y

CN2174713Y - Linked start-stop device of hoods and shutter controlled by time-delay circuit for camera

Info

Publication number: CN2174713Y
Application number: CN 93235219
Authority: CN
Inventors: 王林
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-14
Filing date: 1993-12-14
Publication date: 1994-08-17
Anticipated expiration: 2003-12-14

Abstract

The utility model relates to a linked start and stop device of a lens cap and a shutter controlled by a time delay circuit for a camera which is composed of a control circuit and the start and stop mechanism of a lens cap. The utility model is characterized in that the control circuit comprises a time delay signal generating circuit and a motor starting circuit, and the start and stop mechanism of the lens cap comprises a DC electric motor and a linked device which is composed of a torsion spring and the lens cap. The linked start and stop of the lens cap and the shutter can be achieved through the control of the signal of the time delay circuit, and namely, a camera lens is protected at any time to achieve the purpose of simple structure.

Description

Linked start-stop device of hoods and shutter controlled by time-delay circuit for camera

The utility model relates to a kind of camera Jing Gai and shutter open-shut linkage device of delay circuit control, and it belongs to the fuselage or the part class of video camera or camera.Be suitable for the camera of built-in Jing Gai.

Existing camera lens lid is generally controlled unlatching by the human hand, with using with opening, need not then close with hand, though cannot say for sure and trouble be unfavorable for that lens protection but is fairly obvious; Though can have mechanical hook-up to reach this purpose, the equal more complicated of structure.

The purpose of this utility model provides a kind of camera Jing Gai and shutter open-shut linkage device by delay circuit control, has both helped lens protection, and simple in structure again.

This camera Jing Gai and shutter open-shut linkage device by delay circuit control are made up of control circuit and mirror lid mechanism for opening/closing; Described control circuit comprises a time delayed signal generation circuit and electric motor starting circuit composition; Describedly can send first latter two signal, delay circuit one branch links to each other with direct current generator through electronic switch 1, and another branch links to each other with the shutter trigger mechanism through another electronic switch 2 again; Described mirror lid mechanism for opening/closing comprises that a direct current generator 3 and one are by torsion spring 9 and mirror lid 10 linkages of forming.

Described direct current generator 3 links to each other with mirror lid 10 through machine shaft 5, and be wound with torsion spring 9 in this rotating shaft 5, one end arm 91 of torsion spring 9 is stuck on the mirror lid 10,92 on other end arm is fixed on the camera body, is provided with in the appropriate location, the left and right sides of mirror lid 10 simultaneously and opens limited block 6 and closed limited block 7.

Accompanying drawing 1 is the utility model control circuit figure;

Accompanying drawing 2 is mirror lid mechanism for opening/closing synoptic diagram;

Accompanying drawing 3 is that the A of accompanying drawing 2 is to view.

Further describe the utility model below in conjunction with accompanying drawing, and provide embodiment.

The utility model is action like this: camera button is the switch of control circuit in the design.In case press after the camera button, control the Jing Gai of this camera and the time delayed signal generation circuit of shutter open-shut linkage and promptly be switched on, outwards send one latter two signal a and the b of an elder generation immediately; The a signal is transferred to electronic switch 1 place in advance, makes direct current generator 3 startup work, and camera mirror lid 10 is opened.At this moment, the b signal that delay circuit sends behind signal a triggers electronic switch 2 and arrives the shutter reference mark, and shutter is in time opened, and makes film finish exposure photography task.

At this moment, in case finger breaks away from camera button, the time delayed signal circuit is cut off, and the direct current generator circuit cuts off simultaneously, and 10 on camera mirror lid playbacks around the clockwise displacement of axle under the effect of torsion spring 9.Finish so again and again and take task again and again.

Claims

1, a kind of camera Jing Gai and shutter open-shut linkage device by delay circuit control is made up of control circuit and mirror lid mechanism for opening/closing, it is characterized in that described control circuit comprises a time delayed signal generation circuit and electric motor starting circuit composition; The described delay circuit one branch that can send an elder generation one latter two signal links to each other with direct current generator through electronic switch 1, and another branch links to each other with the shutter trigger mechanism through another electronic switch 2 again; Described mirror lid mechanism for opening/closing comprises that a direct current generator 3 and one are by torsion spring 9 with mirror lid 10 linkages of forming.

2, camera Jing Gai and shutter open-shut linkage device by delay circuit control according to claim 1, it is characterized in that: described direct current generator 3 links to each other with mirror lid 10 through machine shaft 5, and be wound with torsion spring 9 in this rotating shaft 5, one end arm 91 of torsion spring 9 is stuck on the mirror lid 10, and 92 on other end arm is fixed on the camera body; Simultaneously, be provided with unlatching limited block 6 and closed limited block 7 in the appropriate location, the left and right sides of mirror lid 10.