1. Field of the Invention
The present invention relates to a photography device.
2. Description of the Related Art
Among photography devices in which a lens for photography is protruded through a protrusion aperture of a casing body, there are photography devices which are structured such that the protrusion aperture is covered by a lens barrier when the lens for photography is retracted into the casing body (stored).
For example, Japanese Patent No. 2,712,160 discloses a camera which is equipped with an urging mechanism and an operation mechanism. The urging mechanism urges the lens barrier in a closing direction. The operation mechanism moves the lens barrier to an open position, against urging force from the urging mechanism, and retains the lens barrier. Accordingly, operations to open and close the lens barrier are implemented simply and safely.
However, in an operation to close the lens barrier, the lens barrier temporarily abuts against a peripheral surface of a lens barrel and movement toward the closed position is obstructed. Thereafter, when the barrel has moved to a camera body side end of the movement thereof, the lens barrier is closed by the urging force from the urging mechanism. In this operation, because the lens barrier abuts against the lens barrel, there is a risk that damage or breakage may occur.
Similarly, in a retraction-type camera disclosed in Japanese Patent No. 3,078,408, when a barrier is being moved from a completely open position to a completely closed position, a trigger switch operates and a lens barrel starts to retract. When the barrier is moved further in the closing direction, clicking means operates, prompting a user to wait until the lens barrel has completely retracted. Then, when the retraction has completely finished and it is possible for the barrier to completely close, the barrier is moved so as to pass over the clicking means, and is completely closed.
In this structure, although impacts between the barrier and the lens barrel can be avoided at least, movement of the barrier is temporarily stopped at an intermediate position during complete closing of the barrier. Thus, there is a problem in that operability is poor.
Japanese Patent Application Laid-Open (JP-A) No. 7-49515 discloses a camera (lens device) which is equipped with a motor for implementing protrusion and withdrawal of a moveable barrel, and which is structured so as to rotate a lens barrier for closing while the moveable barrel is being withdrawn.
With this structure, a mechanism for transmitting driving force of the motor to the lens barrier is necessary, and there is a disadvantage in that the structure is complicated.