JPH01298877A - Electronic still camera - Google Patents

Abstract

PURPOSE:To elevate/descend a magnetic head in interlocking with the elevating/ descending operation of a finder by providing a transmission member transmitting the movement of a finder elevating/descending mechanism to a head base in a way that the magnetic head is parted from a magnetic disk when the finder is contained in a camera main body. CONSTITUTION:With a finder 2 projected, then an elevating/descending base 20 is lifted up. In this case, a lever 28 is moved in a direction of solid line arrow by a tensile strength of a spring 31, an arm 26 is turned clockwise around a shaft C because a pin 26d is pressed and a lever 24 linked by a spring 27 is moved in the direction of solid line arrow by an arm 26b in following to the escape of a folded piece 23 in the right direction. When being moved in the direction of arrow by the movement of the lever 28, a pressing piece 28c at its tip is retracted backward the camera. Then a lift arm 35 is turned clockwise around a shaft 36 while receiving the tensile strength of the spring 37 at its arm 35a and a head base 32 is turned counter clockwise around a guide rod 33. Thus, the magnetic head 3 is lifted up and in press contact onto the magnetic disk, then a video signal is recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The unreleased IJ11 relates to an electronic still camera, more specifically, an electronic still camera having an elevating finder.

(Prior Art) Recently, an electronic still camera has been developed and put into practical use that uses a magnetic disk instead of a photosensitive film and records a subject image on the magnetic disk as an electrical signal.

In this type of electronic still camera, a magnetic disk is loaded into the camera, a magnetic head is brought into contact with the m'p4 disk, and a solid-state IM image element built into the camera body converts the subject image into an electrical signal, which is then modulated. The information is recorded on a magnetic disk using a magnetic head.

However, if the magnetic head is left in contact with the magnetic disk for a long period of time, the magnetic disk may be deformed or damaged, or the recording or 1RF output may become completely unavailable. Otherwise, the magnetic head is retracted to a position where it can be stepped on from the magnetic disk.

- Power, Ichir- There is a demand for still cameras to be smaller, lighter, and H- like general cameras, and from that point of view, the viewfinder is made to protrude from the camera body when shooting, and at other times. An electronic still camera with an elevating finder housed within the camera body has been considered. Even in this type of electronic still camera, it is preferable to provide a retracting mechanism for two consecutive magnetic heads.

(1-1 Object and Structure of the Invention) The present invention has been made by paying attention to the relationship between the elevating and lowering operations of an IL child still camera finder having an elevating finder and the retracting operation of a magnetic head. The objective is to propose a simple mechanism that causes the magnetic head to come into contact with the magnetic disk when the viewfinder is protruded from the camera body, and retracts the magnetic head from the magnetic disk when the viewfinder is housed inside the camera body. To achieve this goal.

The structure is such that the movement of the finder elevating mechanism is transmitted to the head stand on which the magnetic head is mounted, and the head is retracted in conjunction with the elevating movement of the finder.

(Embodiment) The present invention will be described below with reference to the drawings.9 FIG. 1 is a perspective view of an embodiment of a finder elevating mechanism and a magnetic head elevating mechanism of an electronic still camera according to the present invention.

An elevating finder 2 is provided at the rear of the camera body 1 (indicated by chain lines), and a magnetic field 3 is arranged at the center.

The finder 2 is fixed on a lifting table 20, and the lifting table 20 has two sets of levers 21a, 21b and 21c that intersect in an X-shape and can rotate 11F at the center.

21d and supported by the lever 21b.

The pins placed at the upper ends of the levers 21d loosely engage with the long holes 20a and 20b formed in the side pieces of the lifting table 20, and the pins placed at the lower ends of the levers 21a and 21c are connected to the support stand 2.
They are loosely engaged with elongated holes 22a and 22b formed in the side pieces of No. 2, respectively.

The levers 21a and 21c are rotatably supported at their upper ends or on the lifting platform 20 about an axis A, and the levers 21b and 21d are rotatably supported at their lower ends or at an axis B. The above is the finder elevating mechanism.

The lower end of the lever 21c is bent at a right angle to form a bent piece 23.
and is in contact with one end of the lever 24. Two elongated holes 24a, 24a are formed in the lever 24 in the longitudinal direction, and a pin 25 is fitted into the elongated holes 24a, 24a to function as a kite 11. A notch 24b is formed in the center of the lever 24, and a pin 26b implanted in one end of the central core 26a of the arm 26 is engaged with this notch 24b.

A hanging piece 24c is provided at the other end of the lever 24,
A spring 27 is stretched between the hanging piece 24c and the pin 26b of the arm 26.

The arm 26 is rotatable around an axis C, and the central technical section 2
In addition to 6a, an end branch 26c is provided, and a pin 26d extends downward from the other end.

A long lever 28 or pin 29 in the front and back direction of the camera body l.
29 to move in the longitudinal direction.A long hole 28a is formed near the rear end, and a pin 26d of the arm 26 is loosely engaged with this long hole 28a. A projection 28b is formed in the middle of the lever 28, and a spring 31 is stretched between the projection 28b and a pin 30 implanted in the frame (not shown) of the camera body l. The front end of 28 rises upward and extends laterally at right angles to form a suppressing piece 28c.

-1 On the other hand, the magnetic head 3 is mounted on a head stand 32, and the head stand 32 is guided by a guide bar 33 on one side, and a support piece 32a extending horizontally is placed on a guide bar 34 on the other side. It is supported in this way, and can be moved along the guide rod 33 one track at a time by a drive mechanism (not shown).

The guide rod 33 is fixedly supported by a frame (not shown) of the camera body, and the guide rod 34 is fixedly supported by a part of the lift arm 35. The lift arm 35 is rotatably supported by a frame (not shown) of the camera body on a shaft 36, and a spring 37 is attached to the tip of an arm portion 35a extending in the f direction.
One end of the spring 37 is connected, and the other end of the spring 37 is connected to a pin 38 installed in the frame of the camera body (Ig not shown). Further, the pressing piece 28c of the lever 28 is in contact with a part of the arm portion 35a.

Next, the evacuation operation of the magnetic head in conjunction with the up-and-down movement of the finder will be explained.

The finder 2 is normally housed within the camera body l by a locking mechanism (not shown) (when not photographing).

At this time, two sets of levers 21a, 2 of the finder elevating mechanism
Since 1b, 21c, and 21d are each lying in a nearly horizontal state, they are pushed by one end of the lever 24 or the bent piece 23 of the lever 21c and move in the direction of the dashed arrow. As a result, the arm 26 is rotated counterclockwise about the axis C by the spring stretched between the pin 26b and the vertical piece 24c of the lever 24. Since the lever 28 is moved in the direction of the broken line arrow against the pulling force of the spring 31 by a pin 26d planted downward at one end of the arm 26, the lift arm 35 is moved against the pulling force of the spring 37. It rotates counterclockwise about the shaft 36. As a result, the kite forest 34 descends, causing the supported head stand 32 to rotate clockwise around the other kite rod 33, and the magnetic head 34 to rotate clockwise around the other kite rod 33.
It's a little depressing. In other words, the magnetic head 3 separates from the magnetic disk (not shown) that was loaded on the side of the magnetic head 3 and was in contact with it.

Next, when taking a picture, when you press the finder pop-up button (not shown) provided on a part of the camera body, the locking mechanism is released and the finder 2 rises to the protruding position shown in 1'A. stand out.

When the finder 2 protrudes, the elevating table 20 rises, so two sets of levers 21a, 21b and 21c, 21. Then, the bent piece 23 of the lever 21d retreats to the right. At this time, the sieve 28 moves in the direction of the solid line arrow due to the medium tension of the spring 31, and the arm 26 moves towards the bin 26.
Since d is pressed, it rotates clockwise around axis C. As a result, the lever 24 connected to the arm 26b by the spring 27 moves in the direction of the solid arrow following the rightward retreat of the bent piece 23. As the lever 28 is moved in the direction of the arrow, the pressing piece 28c at its tip is pulled back to the rear of the camera. Therefore, the lift arm 35 rotates clockwise around the shaft 36 under the tensile force of the spring 37 on the arm portion 35a, and rotates counterclockwise around the head stand 32 or the guide rod 33. As a result, the magnetic head 3 rises and comes into contact with the magnetic disk, making it possible to record video signals.

When you finish shooting, press down on the viewfinder 2 with f.
Since the locking mechanism locks the elevating table 20 in the lowered position 7g, the finder 2 is housed inside the camera body l. The movement of the heud lifting mechanism at this time is as described above, and the magnetic heud 3 moves away from the magnetic disk.

(Effects of the Invention) As explained above, in the present invention, the magnetic head is brought into contact with the magnetic disk when the viewfinder protrudes from the camera body, and the magnetic head is separated from the magnetic disk when the finder is housed in the camera body. Like, F)・
By providing a transmission member that transmits the movement of the ink elevating mechanism to the head stand, the magnetic head can be moved up and down in conjunction with the up and down movement of the finder.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a finder elevating mechanism and a magnetic head elevating mechanism of an electronic still camera according to the present invention.

Claims (1)

[Claims] A finder elevating mechanism that has a protruding position in which the finder protrudes from the camera body when shooting and a storage position in which the finder is stored inside the camera body when not shooting, and a magnetic head that moves the magnetic head in a predetermined direction in synchronization with the shooting operation. In an electronic still camera having a head stand that moves a certain distance at a time, when the finder elevating mechanism takes the protruding position, the magnetic head comes into contact with the magnetic disk, and when the retracted position is taken, the magnetic head is moved away from the magnetic disk. An electronic still camera characterized in that a transmission member is provided for transmitting the movement of the finder elevating mechanism to the head stand so as to separate them from each other.