KR910005573Y1 - Locking system for camera - Google Patents

Abstract

No content.

Description

Camera lock

1 is a plan view of the main part of an embodiment of the present invention, and shows a state in which the release lever is locked and the power supply switch is opened by locking the lock lever by the slider coupled to the lens opening / closing knob.

FIG. 2 is a plan view showing a state opposite to FIG. 1, in which the locked state is released with the lens open, and the power supply switch is closed.

* Explanation of symbols for main parts of the drawings

10: substrate 20: lens

30: lens protective cap 31: slider

32: knob 33: guide pin

40: release lever 41: guide mechanic

42: guide pin 43: locking jaw

50: lock lever 51: jam jaw

53: torsion spring 60: built-in switch

60, 61 connection terminal board 62 connection

The present invention relates to a lock device of a camera, and more particularly, to a configuration in which a release lever is locked or released according to whether a lens is opened or closed, and a power switch is also turned on.

In general, the intermediate camera (mainly 35m / m dual-lens camera) developed in recent years employs a built-in lens cap to protect the lens, and additionally, a release lever lock device and a separate power unit switching means are provided. In addition, the operation means of the lens cover and the locking device and the power unit switching means are configured separately so that the lock device and the power switch can be operated separately regardless of whether the lens cover is opened or closed. In some cases, when the amount of light received by the lock lever of the release lever is reduced below a certain value, as an example, when the lens cap is closed, the release lever is interlocked with an automatic exposure control system to prevent operation of the release lever. Some rely on electronic control schemes. In addition, there is a mechanical lock means that is mechanically interlocked by the electronic control method, but the connection structure has a very complicated problem. As described above, in the conventional camera, when the lens cap is closed, that is, even when the camera is not in use, the power is not completely shut off so that it is always in the standby mode for shooting, thus causing current leakage. Of course, there is a switch interlocked with the release lever, but this does not completely prevent current leakage generated in the electronic device inside the camera. In addition, the lock device of the conventional release lever is made of an electronic control method or mechanical indirect control method when the lens cap is closed as described above, the structure is very complicated and the failure rate is also high.

The object of the present invention is to provide a lock device for a camera configured to mechanically interlock the release lock device and the built-in power switch according to whether the lens cap is opened or closed.

It is another object of the present invention to provide a locking device of a camera that is simple in structure and can extend the life of the built-in battery.

In order to achieve the above object, the present invention, on the one side of the release lever which is operated by pressing the release button and the power supply unit switching means and the release lever is installed to allow a resilient sliding movement of a certain distance on the substrate, The pivoting and restoring can be restored by a slider connected to the lens cap opening / closing knob to install the rotation lock lever to stop or release the movement of the release lever. The expression lock lever is interlocked so that the release lever can be locked or released. Meanwhile, one side of the lock lever is provided with a power supply switch that is turned on and off according to the rotational position of the lock lever.

Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

In FIG. 1, among the various components installed on the substrate of the camera, a release lever 40 for interlocking the shutter of the camera and various elements attached thereto, a cap 30 for protecting the lens 20 of the camera, and L-shaped lock lever 50, which interlocks with the slider 31 and the knob 32 and the slider 31 as the following elements to stop or release the movement of the release lever 40, and the lock lever 60 The U-shaped connecting piece 62 coupled to the middle of one end of the lock lever 50 as a component of the built-in power switch 60 to be connected to the connecting 4-terminal plate 61 contacted or separated from the connecting piece 62. (62) is shown schematically on the base plate (base plate).

Here, the release lever 40 has two guide holes 41 and 42 formed therein, and guide pins 42 and 42 for guiding it are installed therethrough and a tension spring 44 is installed on one side thereof. By doing so, the ballistic restoration movement of a certain distance is possible. In addition, the engaging jaw 43 is formed on one side of the body is interfered by the lock lever (50). And the lock lever 50, which is carried out by the bitrim spring 53 to stop or release the movement of the release lever 40 has an L-shape as described above, the one end of the release lever Another locking jaw 51 corresponding to the locking jaw 43 of the 40 is formed, and an inclined portion 52 is provided at the other end thereof in contact with the left end in one end of the opening / closing slider 31. do. In addition, the cap opening and closing slider 31 is installed to be further slidable in a direction perpendicular to the direction of movement of the release lever 40, a guide pin in the guide long hole (31a) (31b) in the center of the body The 33 and 33 are penetrated, and the knob 32 and the cap 30 for opening and closing the lens 20 are coupled to the outside of the camera body as shown by the dashed and dashed lines in the drawing. On the other hand, the U-shaped connecting piece 62 is coupled to one side of the lock lever 50, and the rotational position of the lock lever 50 with respect to the two connecting terminal plates 61 and 61 positioned on the substrate. It is installed to be contacted or separated according to.

Referring to the operating state of the present invention configured as described above are as follows.

First, FIG. 1 shows a state in which the lens 20 is covered by the cap 30. The slider 31 moves to the left side, and the left end thereof presses the inclined portion 52 of the lock lever 50. The lock lever 50 is rotated by a predetermined angle clockwise while overcoming the elastic force of the torsion spring (53).

Therefore, the locking jaw 51 of the lock lever 50 is located directly below the locking jaw 43 of the release lever 40, thereby preventing the downward movement of the release lever 40. In addition, the U-shaped connecting piece 62 coupled to the middle of the lock creek is in contact with only the L-shaped one side connecting terminal plate 61 between both connecting terminal plates 61 and 61 as shown. Therefore, the release lever 40 is locked, and the built-in switch is turned off.

However, as shown in FIG. 2, the slider 31 is moved to the right, so that the cap 30 covering the lens 20 is biased to one side, and the lock lever 50 has the restoring force of the torsion spring 53. Rotates a certain angle counterclockwise. Therefore, the release jaw 51 of the lock lever 50 is released from the lower portion of the engagement jaw 43 of the release lever 40 so that the release lever 40 can be lowered. Of course, this downward movement is caused by the photographer pressing the release button. Then, both legs of the U-shaped connecting piece 62 coupled to the middle of the lock lever 50 are placed on each of the connecting terminal boards 61 and 61 on the substrate, respectively, and as a result, the connecting terminal board 61. Electrical connection between 61 is made. The two connecting terminal boards 61 and 61 and the U-shaped connecting piece 62 correspond to the built-in switch 60 of the camera as described above, whereby the entire length of the camera is placed in the standby state for shooting.

As such, the present invention provides a lock lever, which is a mechanical interlocking element, between the cap opening and closing means and the release means of the camera, thereby enabling the formation of a lock device having a very simple structure, and automatically turning on and off according to the position of the lens cap. By providing a built-in power cut-off means to effectively prevent the shortening of the life of the built-in battery by the user's careless or natural leakage current.

Claims (1)

The release lever 40 is installed so as to allow a reciprocating ball movement of a certain distance on the substrate 10 so that the shutter unit of the camera and other accompanying elements are interlocked, and the lens 20 positioned in front of the camera body. In the lens cap 30, which is installed in front to protect it, a knob 32 and a slider 31 for shifting the lens cap 30 to open and close the lens 20 are provided, the release The lock lever 50 whose pivoting angle is changed depending on the position of the slider 31 on one axis of the lever 40 is rotatably mounted. When the lens 20 is covered by the cap 30, the lock lever 50 is rotated. One end of the lock lever 50 is pressed and rotated by the slider 31 so that the locking jaw 51 formed at the lower end of the lock lever 50 is formed on one axis of the release lever 40. The latching jaw 43 is provided to catch the release lever 40 On the other hand, a switch 60 made of a U-shaped connecting piece 62 and a connecting terminal plate 61 and 61 is provided at one side of the lock lever 50, and the connecting piece 62 is a slider. A lock lever 50 whose rotation angle is changed by 31, and the connection terminal boards 61 and 61 are connected to the board 10 on which parts such as the lock lever 50 are installed. Locking device for a camera, characterized in that the connecting terminal plate (61) (61) is configured to be connected to or disconnected in accordance with the position of the lock lever (5) so as to be able to be folded with the piece (62).