JPH0682517B2 - Internal protection device for electronic still camera - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an internal protection device for an electronic still camera that records or reproduces a video signal on a magnetic sheet built in a cassette.

2. Description of the Related Art A device using a cassette-shaped recording medium requires a mechanism for transferring the cassette from a position for inserting or ejecting the cassette to a position for recording or reproducing, which is called a garage. Many. There are various types of garages, such as a rotary type, a link type, and a front loading type, but a rotary type garage is suitable for an electronic still camera that is particularly required to be small and lightweight. When a camera is constructed using this rotating garage, it has been proposed that the direction of inserting or ejecting a cassette into the garage and the direction of the rotating shaft be made to coincide with each other to efficiently design the entire device. In fact, its effect is widely recognized.

Problems to be Solved by the Invention When miniaturization is attempted with this mechanism, the pivot shaft is necessarily arranged below the cassette. That is, even if the garage rotates, the position of a part of the cassette does not change so much, and a position where the cassette is inserted or ejected and a position where the recording or reproduction is performed overlap with each other. Therefore, when it is configured as a camera, an appropriate means for preventing the inside from being exposed and dust from being mixed in from that portion is required.

Means for Solving the Problems The present invention has been made in view of the above problems, and holds a cassette containing a magnetic sheet inside, and the cassette can be inserted or ejected at a recordable or reproducible position. It consists of a garage that transfers between positions and a cover member that can take a position that covers the insertion opening of the cassette provided in this garage and a position that opens it, and the cover member interlocks with the operation of the garage to open the insertion opening. It is an internal protection device for an electronic still camera configured to open and close.

Action The present invention, with the above-described configuration, makes it possible to configure a compact garage while controlling the operation of the cover member for covering the insertion opening of the cassette by the garage, preventing internal exposure and mixing of dust.

Embodiment Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a rear perspective view of an electronic still camera equipped with an internal protection device according to the present invention. The electronic still camera 1 is provided with a drive mechanism 4 on its rear surface, which drives by mounting a cassette 3 containing a magnetic sheet 2 therein. Reference numeral 5 is an eject button, and 6 is a finder. A concave portion 7 is formed on the upper rear surface of the electronic still camera 1, and a cover plate 8 is provided in order to prevent dust from entering the inside or exposing the inside from this portion.

When ejecting the cassette 3, the eject button 5 is moved in the direction of arrow 9. Then, the internal hooks are released, the garage 10 of the drive mechanism 4 moves in the direction of arrow 11, the cover plate 8 moves in the direction of arrow 12, and the cassette 3 is ejected in the direction of arrow 13. At this time, the cassette 3 is in a slightly tilted state (3 ') so as not to come into contact with the outer shape of the electronic still camera 1 as shown by the one-dot chain line in the figure.

This operation will be described with reference to FIG. In the figure, a shows the garage 10 closed and b shows the opened garage 10 from above the camera. That is, the cassette 3 is discharged toward the front side of the paper. Now, the garage 10 can rotate about the shaft 14 as a fulcrum and is biased counterclockwise (in the direction of arrow 11). Therefore, when the hook is disengaged, it turns from a to b. Garage 10
Is a coaxial spring that rotates in the direction away from the garage 10.
Comprising a compartment 16 biased by 15
The cassette 3 is held in this compartment 16. The relative positional relationship between the garage 10 and the compartment 16 in b is determined by the engagement state of the garage 10 and the compartment 16 (not shown). In a, the position of the cassette 3 is accurately determined by the main body of the apparatus so that recording or reproduction can be performed, and accordingly, the relative positional relationship between the garage 10 and the compartment 16 is also inevitably determined.

On the other hand, the cover plate 8 can be similarly rotated about a shaft 17 as a fulcrum and is biased counterclockwise (in the direction of arrow 12) by a tension spring 18. Reference numeral 19 denotes an engagement pin provided on the cover plate 8 and protruding toward the garage 10 side (that is, the back side of the drawing), and engages with the side wall inclined surface 10a of the garage 10. That is, when the garage 10 is closed as indicated by a, the side wall inclined surface 10a of the garage 10 presses the engaging pin 19 near the end of its operation and the cover plate 8 is rotated clockwise against the urging force of the tension spring 18. It will be rotated in the direction opposite to arrow 12. As a result, it is possible to prevent the insertion opening of the cassette 3 from being covered by the cover plate 8 at the same time when the garage 10 is closed and dust from entering the inside or exposing the inside. Then, when the garage 10 is opened, the side wall inclined surface 10a from the engagement pin 19
, The cover plate 8 rotates counterclockwise (in the direction of arrow 12) until it comes into contact with the stopper 20, and the cassette 3
Allows the ejection or insertion of.

EFFECTS OF THE INVENTION As is clear from the above description, the internal protection device for an electronic still camera adopting the present invention can configure a garage that can prevent exposure of the inside of the device and contamination of dust to be extremely compact. Therefore, it can be made very small and lightweight as a camera, and its value is great.

[Brief description of drawings]

FIG. 1 is a rear perspective view of an electronic still camera equipped with an internal protection device according to an embodiment of the present invention, and FIG. 2 is an operation explanatory view of the internal protection device. 1 ... Electronic still camera, 3 ... Cassette, 7 ... Recess, 8 ... Cover plate, 10 ... Garage, 10a ...
Side wall inclined surface, 14 …… axis, 17 …… axis, 18 …… tension spring, 19
...... Engagement pin.

Claims (3)

[Claims] 1. A garage for holding a cassette containing a magnetic sheet therein and transferring the cassette between a recordable or reproducible position and an insertable or ejectable position, and the cassette provided in the garage. An electronic still camera, comprising a cover member capable of taking a position for covering the insertion opening and a position for opening the insertion opening, the cover member being configured to open and close the insertion opening in conjunction with the operation of the garage. Internal protection device. 2. A cover member is provided with a convex portion which engages with a garage, and is biased by a spring in a direction to open an insertion opening so that when the garage transfers a cassette to a recordable or reproducible position, its final position. The garage and the convex portion are engaged with each other before a small amount, and the cover member is configured to move to a position covering the insertion opening against the thermal force with the spring. An internal protection device for an electronic still camera according to claim 1. 3. A garage and a cover member rotate about an axis, respectively, and the two shafts and the cassette are inserted into or ejected from the garage in the same direction. An internal protection device for an electronic still camera according to item 2 of the above.