JPH043300Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an interlocking switch provided in a camera with a cover. In cameras equipped with a movable cover that covers the photographic lens provided on the front of the camera,
When considering an interlocking switch for exposure compensation, battery check, etc., it is difficult to find a place to put the interlocking switch because the movable cover moves, and this type of camera requires a circuit located far away from the shutter because the circuit is placed around the shutter. If you put a switch in a place, the wiring of the lead wires is complicated. Furthermore, if the movable cover is provided with an interlocking switch, the interlocking switch and the lead wire will move as the movable cover moves, which is extremely troublesome.

The present invention aims to improve these various drawbacks, and includes a switch operating member provided on the movable cover side and a camera body that faces the location where the switch operating member is located when the movable cover is in the open state. To provide an interlocking switch consisting of a switch member which is installed at a side location and is turned off when a movable cover is in an open state and turned on only when a switch operating member is operated in this state.

An embodiment of the present invention will be described below with reference to the drawings. Figures 1 and 2 are front views of a camera equipped with an interlocking switch according to the present invention. Figure 1 shows the movable cover closed, and Figure 2 shows the movable cover opened by sliding it laterally. Indicates the condition. FIG. 3 is a cross-sectional perspective view of the main parts with the movable cover closed, and FIG. 4 is a cross-sectional perspective view of the main parts with the movable cover open. The switch operation members provided at any position on the movable cover 1 include a switch button section 2, a stopper section 4 formed in the middle of the switch button section 2, and a conductive member attached to the lower end of the switch button section 2. The switch operating member is biased upward by a force such as a spring (not shown), and by this biasing force. The stopper portion 4 of the switch operating member is pressed against the inside of the movable cover 1, and the tip of the switch button portion 2 projects outward from the outside of the movable cover 1. Reference numerals 6 and 7 indicate a pair of contacts as a switch member provided on the camera body 3 side, and the contacts 6 and 7 are connected to the conductive contact piece 5 of the switch operation member when the movable cover 1 is open.
It is provided at a location on the camera body 3 side directly below the location where is located. In the figure, lead wires 8 are taken out from the contacts 6, 7 and connected to a circuit board (not shown), but terminals may be formed on the circuit board and the terminals may be used as the contacts 6, 7.

Therefore, as shown in FIG. 3, when the movable cover 1 is closed, when the switch button 2 is pressed, the conductive contact piece 5 is lowered but does not touch the contacts 6 and 7 on the camera body 3 side.

Next, as shown in FIG. 4, when the movable cover 1 is open, the contacts 6 and 7 are non-conductive (off), and the conductive contact piece 5 only opens when the switch button 2 is pressed in this state. It comes down and contacts the contacts 6 and 7 on the camera body 3 side, and the contacts 6 and 7 become conductive and turn on. In the above embodiment, in order to maintain the ON state, it is necessary to keep pressing the switch operating member, but it is also possible to replace this switch operating member with a locking or sliding type switch operating member.

As is clear from the above explanation, the present invention can be used only when the movable cover is open, so the arrangement of the switch members can be selected arbitrarily, and the wiring of complicated lead wires can be simplified.
Therefore, it is possible to not only make the camera more compact, but also to provide a low-cost interlocking switch that is easy to assemble.

It should be noted that the above-mentioned interlocking switch functions when the movable cover is open, such as exposure compensation,
Obviously, any switch for battery checks etc. can be used.

[Brief explanation of the drawing]

Figures 1 and 2 are front views of a camera equipped with an interlocking switch according to the present invention. Figure 1 shows the movable cover closed, and Figure 2 shows the movable cover opened by sliding it laterally. Indicates the condition. Figure 3 is a cross-sectional perspective view of the main parts with the movable cover closed;
The figure is a cross-sectional perspective view of the main parts with the movable cover open. 1...Movable cover, 2...Switch button part, 3...
...Camera body, 4...Stopper part, 5...Conductive contact piece part, 6, 7...Contact point, 8...Lead wire.

Claims (1)

[Scope of Claim for Utility Model Registration] In a camera equipped with a movable cover that slides between a position that covers and a position that opens the photographic lens provided on the front side of the camera, the movable cover is provided on the side of the movable cover and is operated from outside the camera. a switch operating member that moves relative to the movable cover when the movable cover is opened; An interlocking switch for a camera with a cover, comprising: a switch member that comes into contact with the switch operating member as it moves when the switch operating member is operated in the open position of the movable cover.