JPS6280861A - Electronic still camera - Google Patents

Abstract

PURPOSE:To prevent the deformation or damage of a magnetic sheet, to prolong the service life and to stabilize recording/reproduction by sliding a stabilizing member on a magnetic sheet only at recording/reproduction and detaching the member from the magnetic sheet when no recording/reproduction is applied. CONSTITUTION:When a package 5 incorporating a flexible magnetic sheet 2 is stored in a storage section 16 and a cover 18 is closed, a magnetic head slides with the magnetic sheet 2. Then the slope 6 of a changeover lever 7 raises a fixed screw 14 when the lever 7 is set and the member 1 is not abutted with the magnetic sheet 2. When the changeover lever 7 is set, the stabilizing member 1 descends while the slope 16 pushes the screw 14 and a prescribed tilt is given in advance so as to press the magnetic sheet 2 by a prescribed pressing quantity. Even when the package 5 is stored and left for a long period, the member 1 is raised by the lever 7, then the deformation/damage of the magnetic sheet 2 is prevented.

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a magnetic recording and reproducing device, and more particularly to an electronic still camera that records and reproduces signals by rotating a flexible magnetic sheet and abutting a magnetic head. Regarding.

[Technical background of the invention and its problems]

2. Description of the Related Art In recent years, so-called electronic still cameras, which capture images using a solid-state image sensor or the like and record them as still images in a memory, have been attracting attention. In this electronic still camera, a flexible magnetic sheet is generally used as the image memory.

In order to prevent deformation, damage, and staining of the magnetic sheet,
Further, in order to facilitate its handling, the magnetic sheet 2 is usually stored and handled in a package 5 as shown in FIG. 17.

On the other hand, in order to maintain constant contact between the magnetic sheet 2 and the magnetic head 3 that performs recording or reproduction (including the state in which they face each other across an air layer) in an electronic still camera, the magnetic sheet 2 is It is necessary to stabilize the running of the magnetic head 3. Therefore, a so-called stabilizing member 1 as shown in FIG. 18 is attached around the magnetic head 3. FIG. 3 is a state diagram when the member 1 is brought into sliding contact with the magnetic sheet 2. FIG.

By the way, in an apparatus that performs recording or reproduction by loading the package 5 containing the magnetic sheet 2 as described above,
If the stabilizing member 1 is pushed into the magnetic sheet 2 and left for a long time, the magnetic head 3 protrudes from the magnetic sheet 2 and the stabilizing member 1 is pushed in, causing the magnetic sheet 2 to deform as shown in FIG. Even if an attempt is made to obtain an output, a stable head touch is not performed, so that the optimum output may not be obtained, and the life of the magnetic sheet 2 may be deteriorated.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and aims to provide an electronic still camera that prevents deformation and damage of the magnetic sheet, improves the life of the magnetic sheet, and allows stable recording and playback at all times. .

[Summary of the invention]

In order to achieve the above object, the present invention includes a package storage section for storing a package containing a flexible magnetic sheet, and a flexible magnetic sheet that is stored in the package storage section and driven to rotate. A magnetic head for recording and reproducing signals is placed in contact with the magnetic head;
A stabilizing member having a sliding contact portion that comes into contact with a flexible magnetic sheet, and a position where the sliding contact portion of this stabilizing member can be moved between a position where it slides into contact with the flexible magnetic sheet and a position where it separates and does not come into sliding contact. An electronic still camera is provided, comprising a moving means for moving a stabilizing member and a supporting means for movably supporting the stabilizing member.

[Embodiments of the invention]

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

FIG. 1 shows an opening/closing lever 8 used to take in and out the package 5 containing the magnetic sheet 2 (see FIG. 4).
FIG. 3 is a side view showing a state in which the lid 18 is opened. When the pan cage 5 is inserted into the package storage section 16 and the lid 18 is closed, the magnetic sheet 2 is fixed and the magnetic head 3 (see FIG. 4) comes into sliding contact. At this time, the stabilizing member 1 remains raised by the switching lever 7 and is separated from the magnetic sheet 2.

FIG. 2 is a plan view of the lid 18 seen from below in FIG. installed as possible.

FIG. 3 shows the state when the stabilizing member 1 is lowered. The switching lever 2 is attached with, for example, a screw 15 or the like so as to be slidable in the direction into the drawing. Further, it comes into contact with a fixing screw 1d implanted in the upper part of the stabilizing member 1, and the part that comes into contact with it is formed with an inclination 6.

Then, by sliding the switching lever 7 in the direction shown in the figure, the slope 6 comes into sliding contact with the head of the fixing screw 14, and because of the slope 6, the fixing screw 14 moves up and down. The interlocking stabilizing member 1 is the fixing spring 1
It ascends and descends while deforming 0.

Note that the slope 6 of the switching lever 7 is when the switching lever 2 is OFF.
At this time, the fixing screw 14 is raised and the stabilizing member 1 does not come into contact with the magnetic sheet 2, and when the switching lever 7 is ON, the fixing screw 14 is pushed by the inclined part 60 and the stabilizing member 1 does not come into contact with the magnetic sheet 2. A predetermined inclination is provided in advance so that the magnetic sheet 1 descends and presses down the magnetic sheet 2 by a predetermined amount.

With this configuration, even if the package 5 containing the magnetic sheet 2 is left in the package storage section 16 for a long time, the stabilizing member 1 can be raised by the switching lever 7 and the magnetic sheet 2 can be removed. Deformation and damage can be prevented, thereby preventing deterioration of life.

[Other embodiments of the invention]

Next, a second embodiment of the present invention will be shown using FIGS. 4 to 6.

FIG. 4 shows the state when the stabilizing member 1 is lowered. When the switching lever 2 provided with the pawl 12 is turned on by sliding it in the direction B in the figure, the pawl 12 also slides and the vertical movement lever 13 is brought down, and the fixing screw 14 integrated with the stabilizing member 1 is turned on. 14 is lowered by the biasing spring 9 which is biased in the direction of pushing in, the stabilizing member 1 that interlocks with it also descends, and the vertically movable lever 13 that is in sliding contact with the magnetic sheet 2 is collapsed, and the stabilizing member 1 is When in sliding contact with the magnetic sheet 2, the contact 20 and the switch cord 21 are continuous.

FIG. 5 shows the state when the stabilizing member 1 is raised. Slide the switching lever 7 in the direction C in the diagram and press O.
When set to FF, the pawl 12 also slides to raise the vertically movable lever 13, and the stabilizing member 1 also rises in conjunction with the rise of the fixing screw 14. When the stabilizing member 1 is raised, the contacts 20 and the switch cord 21 are discontinuous.

FIG. 6 shows an example of a block diagram regarding the shutter switch 17. When the switching lever 7 is turned on, the stabilizing member 1 is lowered, the contact 20 and the switch cord 2 are connected, and the drive motor 19 rotates the magnetic sheet 2.
rotates. Then, the signal from the shutter switch 17 and the signal from the switching lever 7 are ANDed and input to the symbol and reproducing circuit so that recording and reproduction can be performed only when the switching lever 7 is ON.

With this configuration, the switching lever 7 can be
When the stabilizing member 1 is raised in the FF state, the rotation of the magnetic sheet 2 also stops and the signal from the shutter switch 17 is not transmitted to the recording/reproducing circuit, so that there is no possibility of erroneous recording or reproduction on the magnetic sheet 2.

Next, a third embodiment of the present invention will be described using FIGS. 7 to 9.

FIG. 7 shows a state diagram when the stabilizing member 1 is in sliding contact with the magnetic sheet 2. In this embodiment, a power switch 22 (see FIGS. 15 and 16) is provided in place of the switching lever 7. When this t-source switch 22 is turned on, the lid 18
The magnet 23 provided in the magnetic sheet 2 works to attract the plate 24 attached to the stabilizing member 1, and in conjunction with this, the stabilizing member 1 descends and comes into sliding contact with the magnetic sheet 2.

FIG. 8 shows a state in which the stabilizing member 1 is separated from the magnetic sheet 2. 'When the JL source switch 22 is turned OFF, the connection 41 to the 1 magnet 23 is cut, the plate 24 is raised by the return spring 25, and in conjunction with this, the stabilizing member 1 is also raised and separated from the magnetic sheet 2.

FIG. 9 shows an example of a block diagram regarding the shutter switch 17. F! ! When the source switch 22 is turned on, the stabilizing member elevating switch 26 interlocked with it is also turned on, and the plate 24 (FIGS. 7 and 8) is attached to the first magnet 23.
(see figure) is sucked and the stabilizing member 1 is lowered, and the 1 timer 27 is set. This timer 27 is
The shutter switch 17 (Figs. 15 and 16) is activated within a predetermined time.
(see figure) is not turned on, automatically to reduce power consumption? Turn off the 4 source switch 22
F 1. When the drive motor 190 rotations stop, the stabilizing member lift switch 26 is also turned off.
Then, the stabilizing member 1 also rises and separates from the magnetic sheet 2 to prevent the magnetic sheet 2 from being deformed. If the shutter switch 17 is turned on within a predetermined time, the timer 2
7 is reset. The other functions are the same as those shown in FIG. 6, so their explanation will be omitted.

Note that since the 'FIL source switch 22 and the stabilizing member lifting/lowering switch 26 are interlocked, one switch may be used for both purposes as long as the entire power supply can be shared.

Next, modified examples of the block diagram regarding the shutter switch 17 are shown in FIGS. 10 and 11. Note that the same parts as in FIGS. 6 and 9 are designated by the same reference numerals, and the explanation thereof will be omitted.

10 and 11, when the switching lever 7 or the power switch 22 is turned on, the stabilizing member 1 descends and comes into sliding contact with the magnetic sheet 2, and when the shutter switch 17 is turned on, the drive motor 19 rotates, and the magnetic sheet 2 rotates. Then, by the delay circuit, the magnetic sheet 2
Recording and playback are performed after a slight delay (about 0.1 seconds) when the disc rotates at a constant speed.

Note that the time lag between turning on the shutter switch 17 and recording and reproducing due to the delay circuit is slight, and in normal use, there is no chance of missing a photo opportunity.

In this way, power consumption can be reduced by rotating the drive motor 19 only at the moment of actual recording or reproduction.

Next, a fourth embodiment of the present invention will be shown using FIGS. 12 to 14.

In FIG. 12, the stabilizing member 1 is configured to be raised and lowered in conjunction with the ON and OFF states of a shutter switch 17 (shutter button) or an enlarged playback switch (not shown).

13 as a block diagram regarding the shutter switch 17.
When configured as shown in the figure, when the power switch 22 is turned on, the drive motor 19 rotates, and the magnetic sheet 2 rotates at a predetermined number of rotations. Then the shutter switch 17
When the button is pressed, the stabilizing member 1 descends and comes into sliding contact with the rotating magnetic sheet. Recording and reproduction are then performed with a slight delay due to the delay circuit.

In addition, when the configuration is as shown in FIG. 14, when the shutter switch 17 is turned on, the stabilizing member 1
At the same time as the magnetic sheet 2 is lowered, the drive motor 19 also rotates, causing the magnetic sheet 2 to rotate. Then, due to the delay circuit, the magnetic sheet 2 rotates at a constant speed for a short time (about 0.1 seconds).
Recording and playback are performed with a delay.

Note that the stabilizing member 1 moves up and down along the guide 28, and is stopped by a stopper 29 after reaching a predetermined pushing amount. When the shutter switch 12 is turned off, it is raised by the spring 30 and returns to its original position.

In this way, the shutter switch 17 is turned on.

By configuring the stabilizing member 1 to descend and rise in conjunction with the OFF switch, it is possible to avoid leaving the stabilizing member 1 in sliding contact with the magnetic sheet 2 by forgetting to turn it off, and also eliminating the need to provide a timer. do not have.

15 and 16 show the external appearance of the electronic still camera, and show the shutter switch 17. The switching lever 7 or the power switch 22 is attached to the camera body 31 and can be operated from the outside.

〔Effect of the invention〕

As described in detail above, according to the present invention, the stabilizing member is brought into sliding contact with the magnetic sheet only during recording or reproduction, and is separated from the magnetic sheet when recording or reproduction is not performed, thereby preventing deformation of the magnetic sheet.

In addition to preventing damage and extending the lifespan, it also provides stable records at all times.
Can be played.

[Brief explanation of drawings]

FIG. 1 is a partial cross-sectional view showing the internal structure of a first embodiment of the electronic still camera of the present invention, FIG. 2 is a partial bottom view of FIG. 1, and FIG. 3 is a partial bottom view of FIG. FIGS. 4 and 5 are partially sectional side views showing a second embodiment of the present invention, FIG. 6 is a block diagram of the shutter switch, and FIGS. , a partial cross-sectional side view showing a third embodiment of the present invention, FIG. 9 is a block diagram relating to a shutter switch, and FIGS. 10 and 11 C are block diagrams showing a modification of the block diagram relating to the shutter switch. , 1st
Figure 2 is a side view showing the fourth embodiment of the invention, Figures 13 and 14 are block diagrams related to the shutter switch, and Figures 15 and 16 are side views of the electronic still camera body according to the present invention. FIG. 17 is a perspective view of the package, and FIGS. 18 and 19 are partially sectional side views showing a conventional example. DESCRIPTION OF SYMBOLS 1... Stabilizing member, 2... Magnetic sheet, 3... Magnetic head, 5... Package, 7... Switching lever,
12... Claw, 13... Vertical lever, 16... Package storage section, 17... Shutter switch, 19...
...Drive motor, 22...Power switch, 23...
・Electromagnet, 24... plate, 27... tie, 31... camera body. Agent Patent Attorney Rule Yudo Chika Kikuo Takehana Figure 1 Figure 3 Figure 4 Figure 5 Figure 7 Figure 8 Figure 16r/ Figure 10 Figure 11 Figure 14 Figure 15 Figure 18 Figure 17 Figure 18

Claims (1)

[Scope of Claims] A package storage section for storing a package containing a flexible magnetic sheet, and a recording device that records a signal by coming into contact with the flexible magnetic sheet that is stored in the package storage section and driven to rotate. , a magnetic head that performs reproduction; a stabilizing member that is provided to face the magnetic head with the flexible magnetic sheet in between and has a sliding contact portion that comes into contact with the flexible magnetic sheet; a moving means for moving the stabilizing member so that the sliding member of the stabilizing member can move between a position where the sliding contact part slides on the flexible magnetic sheet and a position where the sliding part of the stabilizing member does not come into sliding contact with the flexible magnetic sheet; An electronic still camera characterized by comprising: support means for supporting the electronic still camera.