JPH01298882A - Electronic still camera - Google Patents

Abstract

PURPOSE:To attain reproduction through the use of a simple type reproducing device by pressing a magnetic head into contact with a magnetic disk when a camera is set to the simple reproducer while a finder is contained in the camera main body. CONSTITUTION:When an electronic still camera 100 is set to a simple reproducing device 200, while a finder 2 is contained in a camera main body, a projection 200a is inserted to a coupling hole formed to the rear part of the camera main body and the connector provided to the rear part of the camera main body is connected to the connector 200b of the reproducing device 200. With the projection 200a inserted in the camera main body, since the tip of the projection 200a is pressed into contact the tip of a branch 26c at the end of a lever 26 and depresses it, the lever 26 is turned clockwise around a shaft C. With the electronic still camera 100 set to the simple reproducing device 200, since a magnetic head 3 is in press contact with the magnetic disk, a video signal is reproduced from the magnetic disk by utilizing a magnetic disk drive mechanism and a magnetic head drive mechanism of the camera side.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application) The present invention relates to an electronic still camera, and more particularly to 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 magnetic disk, and a solid-state image pickup device built into the camera body converts the subject image into an electrical signal, which is then modulated and sent to the magnetic head. The information is recorded on a magnetic disk.

A dedicated ILF is used to play video signals from magnetic disks.
Gray fabric is used. Remove the recorded magnetic disk from the electronic still camera, load the magnetic disk into the I'T raw machine, rotate the magnetic disk using the drive mechanism installed in the playback machine, and drive the magnetic head to output images from the magnetic disk. The signal is detected, processed by a regeneration circuit, and extracted.

By sending the output of the playback device to a television receiver or monitor display, you can view the subject image as a video.

However, since the electronic still camera itself originally has a built-in mechanism to rotate the magnetic disk and drive the magnetic head, if you use the electronic still camera's drive mechanism during playback, the playback device only has a playback circuit. A simple playback machine can be realized.

However, in electronic still cameras, 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 recording or playback may become impossible. The magnetic head is retracted to a position away from the magnetic disk except during reproduction.

On the other hand, 'electronic still cameras, like regular cameras, have demands for miniaturization, disrespect, and profanity, and from that perspective, the viewfinder protrudes from the camera body when taking pictures, and is housed within the camera body at other times. An electronic still camera with an elevating viewfinder is being considered.

Therefore, even in electronic still cameras having an elevating finder, there is a question as to whether it is preferable to provide a retracting mechanism for the magnetic head, and whether there is a relationship between the elevating and lowering operations of the finder and the retracting operations of the magnetic head.

When using a simple player, the electronic still camera must be placed in contact with either the magnetic head or the magnetic disk.

(Objective and Structure of the Invention) The present invention has been made in view of the above points, and is an electronic still camera having an elevating finder. To achieve this purpose, the purpose is to propose a simple mechanism that allows a still camera to come into contact with a magnetic head or magnetic disk even if it is housed in the viewfinder or camera body when a still camera is sectioned into a simple playback device. A transmission member is provided to transmit the movement of the viewfinder elevating mechanism 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. When set in a simple player, the transmission member cooperates with a part of the player to bring the magnetic head into contact with the magnetic disk.

(Example) The present invention will be explained below based on the drawings.

FIG. 1 shows a playback system for an electronic still camera, where 100 is an electronic still camera, 200 is a simple playback device,
300 is a monitor television receiver. The electronic still camera 100 is set in a simple type IL-T raw machine 200, and is designed to be inserted into the electronic still camera 100 through a protrusion 200a provided on the simple type playback a200 in the sector state. The reproduced video signal outputted from the simple Pf raw machine 200 is transmitted to the television receiver 300 through the wire 400, and the image of the subject photographed by the electronic still camera can be viewed on the television receiver 300.

Figure 2 shows an electronic still camera 100 and a simple playback device 200.
FIG. 3 is a perspective view showing the device slightly shifted from the set position.

The simple regenerator 200 has a water moa I 1201 and a vertical part 202.
It forms an L-shaped platform consisting of water f? R20
Set the Shigeko still camera 100 on top. The water pump section 201 has a built-in regeneration circuit! T! Straight part 20
2 is provided with a protrusion 200a and a connector 200b that protrude, and the electronic still camera 100 is connected to the horizontal portion 201.
When set to JI, the protrusion 200a is inserted into the camera 100 and the connector 200b is inserted into the camera 100.
It is designed to be connected to a connector (not shown) provided in the.

FIG. 2 shows an embodiment of a finder elevating mechanism and a magnetic head elevating mechanism of an electronic still camera.

An elevating finder 2 is provided at the rear of the camera 100 (indicated by a chain line), and a magnetic head 3 is arranged at the center.

The finder 2 is fixed on a lifting table 20, and the lifting table 20 is supported by two sets of levers 21a, 21b and 21c, 21d that intersect in an X shape and are rotatable around the center.
The pins set up on the E side light end of the levers 21b and 21d loosely engage with the long holes 20a and 20b formed in the side pieces of the lifting platform 20, respectively, and the pins set up on the lower tips of the levers 21a and 21c are connected to the support base. A long hole 22a formed in the side piece of 22.

22b, 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. The lever 24 is formed with two long holes 4L24a and 24a in the horizontal direction, and a pin 25 is fitted into the long holes 24a and 24a to serve as a guide 11. A notch 24b at the center of the lever 24 engages a pin 26b implanted at one end of the center portion 26a of the arm 26.

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 branch 2
In addition to 6a, an end branch 26c is provided, and a pin 26d extends downward from the other end.

Lever 28 or pin 2 that is long in the front and back direction of the camera lOO body
9.29 is provided so as to be movable in the elongated direction, and an elongated hole 28a is formed near the rear end.
A pin 26d of the arm 26 is loosely engaged with this elongated hole 28a. A protrusion 28b is formed in the middle of the lever 28, and a spring 31 is stretched between the protrusion 28b and a pin 30 implanted in the frame (not shown) of the camera body. The front end of the lever 28 rises in the L direction and extends laterally at right angles to form a pressing piece 28c.

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 rod 33 on one side, and a supporting piece 32a extending into the water is placed on the guide rod 34 on the other side. The guide rod 33 is supported so as to rest on the guide rod 33, and is 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 fixed to 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 one end of a spring 37 is coupled to the tip of an arm portion 35a extending downward, and the other end of the spring 37 is connected to the camera body. It is connected to a pin 38 implanted in the frame (not shown) of the main body.

Further, the pressing piece 28c of the lever 28 is in contact with a part of the arm portion 35a.

Next, the electronic still camera 100 is attached to a simple grIr machine 20.
The retracting operation of the magnetic head when the value is set to 0 will be explained, or prior to that, the retracting operation of the magnetic head will be explained as the finder moves up and down.

The finder 2 is normally housed within the camera 100 body (when not photographing) by a locking mechanism (not shown).

At this time, the 2m levers 21a and 2 of the finder elevating mechanism
Each of 1b, 21c, and 21d is lying in a state similar to that of water, and is pushed by one end of the lever 24 or the bent piece 23 of the lever 21c, and moves 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. The lever 28 is moved in the direction of the dashed arrow by the pin 26d planted downward at one end of the arm 26 against the pulling force of the lever 31, so the lift arm 35 is moved by the spring 37 against the pulling force. It rotates counterclockwise around 36. As a result, the guide rod 34 descends,
The head stand 32 supported thereby rotates clockwise around the other guide rod 33, and the magnetic spatulas 1 to 3
decreases slightly. That is, it separates from the magnetic disk (not shown) that was loaded on the L side of the magnetic head 3 and was in contact with it.

Next, when taking a picture, press the finder pop-up button (not shown) provided on the - section of the camera body, the lock mechanism will be released and the finder 2 will rise and protrude to the protruding position shown in the figure. do.

When the finder 2 protrudes, the elevating table 20 moves "-H", so the two sets of levers 21a, 21b and 21c, 21d rise, and the bent piece 23 of the lever 21c retreats to the right. At this time, the lever 28 moves in the direction of the solid line arrow due to the tensile force of the spring 31, and the arm 26 is moved by the pin 26d.
is pushed, so 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 line arrow following the rightward retreat of the bent piece 23. As the lever 28 moves, the suppressing piece 28c at its tip is pulled back toward the rear of the camera. Therefore, the lift arm 35 receives the tensile force of the arm portion 35a and the spring 37, and rotates clockwise about the shaft 36.
2 or rotates counterclockwise around the guide rod 33. As a result, the magnetic head 3 rises and hits the magnetic disk with an X! ! J
Since they are in contact with each other, video signals can be recorded.

When you have finished shooting, press down on the viewfinder 2 with your knife.
The lock mechanism lowers the elevator platform 20! The viewfinder 2 is housed inside the camera body 1 so that the camera body 1 can be maintained at the same time. At this time, the movement of the head elevating mechanism is as described above, and the magnetic head 3 separates from the magnetic disk.

The following describes the retracting operation of the magnetic head accompanying the up-and-down movement of the finder, and the retracting operation of the magnetic head when an electronic still camera that has finished photographing is set in a simple type +TR gray frame.

When photographing with an electronic still camera is finished, the finder 2 is usually pressed down at once, and at this time the magnetic head is separated from the magnetic disk, as described above.

When the electronic still camera lOO is set in the simple playback device 200 with the viewfinder 2 housed inside the camera body, the protrusion 200a is inserted into the coupling hole (not shown) formed at the rear of the camera body. At the same time, the connector (not shown) provided at the rear of the camera body and the playback a
200 connector 200b.

When the protrusion 200a is inserted into the camera body, the protrusion 20
The lever 26 is rotated clockwise about the axis C when the tip of the lever 0a comes into contact with and pushes the tip of the end branch 26c of the lever 26. This is exactly the same state as when the finder 2 is raised, so the lever 28 moves back in the direction of the solid arrow, and as a result, the tension of the lift arm 35 or the spring 37 causes it to rotate clockwise. The guide rod 33 also rotates counterclockwise around the guide rod 33. Therefore, the head 3 rises l- and comes into contact with the magnetic disk (lA not shown).

In this way, the electronic still camera 100 can be easily reproduced using the a20
When secting to 0, the magnetic head 3 comes into contact with the magnetic disk, so by using the magnetic disk drive mechanism and magnetic head drive mechanism on the camera side, it is possible to generate +lr video signals from the magnetic disk. .

The video signal reproduced by the magnetic head 3 is reproduced by the reproduction fi20.
The signal is sent to the reproducing circuit via the connector 200b of 0, is processed for reproduction, is output, and is sent via the wiring 400 to the monitor television receiver 300 (see FIG. 1).

(Effects of IJJ) As explained above, the present invention provides a digital still camera with an elevating finder, and when the viewfinder is protruded from the camera body, the magnetic head is brought into contact with the magnetic disk, and the viewfinder is The structure is such that the magnetic head is separated from the magnetic disk when the camera is stored in the camera body, or the magnetic head is brought into contact with the magnetic disk when the camera is set in a simple type 11 machine with the finder stored in the camera body. Then, it is possible to generate +lr using a simple type 11 grading machine without damaging the magnetic head.

[Brief explanation of the drawing]

The 11th percentile is a diagram showing a reproducing system for an electronic still camera according to the present invention, and FIG. 2 is a perspective view showing a finder elevating mechanism and a magnetic head retracting mechanism of an electronic still camera according to an unreleased t51. 100...Electronic still camera, 200...Simple playback device, 200 a-protrusion, 200 b-...connector,
300...Monitor television receiver, 2...finder, 20...lifting platform, 24.28...lever, 3
...Magnetic head, 32...Heud stand, 33.34.
...Guide rod 4, ¥ Applicant: Konica Co., Ltd. Agent Patent attorney: Hiroo Suzuki

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. A transmission member is provided to transmit the movement of the finder elevating mechanism to the head stand so as to be spaced apart from each other, and when the electronic still camera is set in a playback machine with the finder elevating mechanism in the storage position, the transmission member is connected to the head stand. An electronic still camera characterized in that a magnetic head is configured to contact a magnetic disk in cooperation with a part of the electronic still camera.