JPH056598Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention is an electronic still camera that takes pictures using a magnetic sheet jacket in which a film-like sheet disc coated with a magnetic material is housed in a thin, approximately square jacket, or a magnetic camera that stores still video image information. The present invention relates to a reproducing device for reproducing and visualizing a sheet jacket, and more particularly to a magnetic sheet jacket loading device for a magnetic recording processing device, which is an improved device for loading a magnetic sheet jacket into the electronic still camera or reproducing device. .

[Conventional technology]

In recent years, with the progress and development of electronics and solid-state imaging devices, solid-state imaging devices are built into the camera body, and image information taken by the camera's optical system is input to the solid-state imaging device and photoelectrically converted. Magnetic information processing devices that modulate electrical signals in accordance with the output image information, record it on an image recording device such as a magnetic sheet jacket (small floppy disk), and reproduce it as image information when necessary are in the spotlight. It's coming. This is because a magnetic information processing device using a solid-state imaging device can take full advantage of the characteristics of a solid-state imaging device, such as small size, light weight, low power consumption, high reliability, long life, mass productivity, and uniformity. In the case of an electronic still camera using a magnetic sheet jacket, the magnetic sheet jacket is attached to the electronic still camera to take pictures. A magnetic sheet jacket houses a small disk-like magnetic sheet coated with a magnetic material in a thin, almost square case. The magnetic sheet jacket is detachable from a magnetic recording processing device such as an electronic still camera or playback device, and is loaded into the device body when recording (shooting) or playing back image information, and when replacing or converting information. It is removable. For this reason, the magnetic sheet is enclosed and housed in a jacket to protect the recording surface and for ease of operation. FIG. 6 is a perspective view showing an example of the structure of such a magnetic sheet jacket, and FIG. 7 is a plan view of the magnetic sheet jacket showing a state in which the shutter is opened. The irregularly shaped hexagonal hole 3A located approximately at the center of the magnetic sheet jacket 1 is an insertion hole into which the rotating shaft of the spindle motor of the magnetic recording processing device is inserted, and is located at the center of the core 3 integrally formed in the center of the disc-shaped magnetic sheet 2. This is a through opening provided in the. Disc-shaped magnetic sheet 2
The core 3, which is integral with the core 3, is housed inside a jacket 4 having a thin plate-shaped, almost square two-part structure, and is rotatable, and when loaded into the magnetic recording processing device, the spindle Rotationally driven by a motor. Two positioning pin holes 4A and 4B are provided in the jacket 4 so that the magnetic sheet jacket 1 can be held in an accurate position when attached to a magnetic recording processing device. The position of the magnetic sheet jacket is regulated. A part of the jacket 4 is provided with an opening window 4C for abutting a recording head or a reading head (none of which is shown) of a magnetic recording processing device. The opening window 4C has a magnetic sheet jacket 1
It is open only when it is loaded into the device,
When you take out the magnetic sheet jacket 1,
The opening 4C is closed by the movable shutter 5, and the magnetic sheet 2 inside is protected. The shutter 5 has a U-shape and is slidable along the outer surface of the jacket 4, and has a small opening 5A and a lock claw 5B on its side wall.
The small opening 5A restricts the movement of the shutter 5, and when the magnetic sheet jacket 1 is taken out from the loading device,
The shutter 5 functions to close the opening window 4C of the jacket 4 in cooperation with an engaging member to be described later. The lock claw 5B is a claw portion that locks the shutter 5 when the opening window 4C is closed.
It engages with the tip of the shutter lock member 6 inside the jacket 4. A recess 4D is provided on the other side of the jacket 4 to stop the magnetic sheet jacket 1.

[Problem that the invention attempts to solve]

The engagement member on the loading device side that engages with the small opening 5A is made of a conventionally pressed sheet metal member and is biased by a spring. The distal end of the engagement member that engages with the small opening 5A forms a sheared surface of press working and generally has an irregular surface shape.
When it comes into contact with one surface of the small opening 5A, it does not press uniformly, and therefore a force that distorts the shutter 4 acts.
As a result, when the magnetic sheet jacket is taken out from the loading device, the shutter 5 does not slide smoothly on the jacket 4, and may not move to close the small opening 5A of the jacket 4. Particularly in electronic still cameras and portable playback devices, depending on the loading direction of the magnetic sheet jacket during use, it may become disengaged from the engaging member and easily removed with the shutter open. It also happens. Further, the tip of the engagement member has a small opening 5.
There are cases where the magnetic sheet jacket 1 is pulled while being inserted into A or is not released, and the magnetic sheet jacket 1 is taken out from the loading device.

[Means to solve the problem]

The present invention has been made in view of the above points, and its purpose is to provide a magnetic recording processing device that performs at least one of recording and reproducing image information by loading a magnetic sheet jacket containing a magnetic sheet. In the magnetic sheet jacket loading device, the shutter 5 allows the recording/reproducing head insertion opening window 4C of the magnetic sheet jacket 1 to be opened and closed.
an engagement tip that engages and disengages from a small opening 5A provided in the jacket holder section 20 to lock the shutter 5 and close the opening window 4C when the jacket 1 is removed from the jacket holder section 20; One torsion spring 22 made of an elastic wire with a circular cross section and having a diameter 22A at one end is provided near the insertion opening 21A of the loading device, and the frame 21 of the jacket holder section 20
a projection 2 on which the coil portion of the torsion spring 22 is wound and fitted onto a flat surface parallel to the magnetic sheet surface of the projection 2;
1D, a protrusion 21E that locks the other end of the torsion spring 22 and biases it, and a torsion spring 22.
a protrusion 21 that restricts the position of the engagement tip 22A;
An object of the present invention is to realize a magnetic sheet jacket loading device for a magnetic recording processing device, characterized in that F is provided. The present invention solves the above problems in a magnetic sheet jacket loading device of a magnetic recording processing apparatus that loads a magnetic sheet jacket containing a magnetic sheet and performs at least one of recording and reproducing image information. A torsion spring that engages and disengages from an opening provided in a shutter that allows the recording/reproducing head insertion opening of a magnetic sheet jacket to be opened and closed is provided near the insertion opening of the loading device. It is.

【Example】

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing the loading device of the present invention, a magnetic sheet jacket, and a schematic configuration, and FIG. 2 is a side view.
3A is a plan view of the loading device with the cover removed for convenience of explanation, and FIG. 3B is a partial perspective view thereof. In these figures, the loading device is roughly divided into a cover section 10 at the top, a jacket holder section 20 below it, and a chassis section 30 at the bottom. The cover part 10 and the jacket holder part are supported and can be rotated counterclockwise when opened. A cover lock member 12 is slidably held at the front upper part of the cover main body 11 of the cover section 10 by a spring, and when the magnetic sheet jacket 1 is installed in the loading device and the cover section 10 is closed. ,
The tip claw portion 12A of the cover lock member 12 is connected to a locking member 3 fixed upright in front of the chassis portion 30.
2, the cover part 10 is inserted into the chassis part 30.
It is locked in the closed state. When inserting a new magnetic sheet jacket 1 or removing a stored magnetic sheet jacket 1, the cover lock member 12 moves to the left by operating the eject button on the magnetic recording processing device side.
The tip claw portion 12A is disengaged from the hole of the locking member 32, and the arm portion 11A at the lower end of the cover body 11 is released.
The cover part 10 is rotated counterclockwise by the tension spring pressure of the coil spring 33 stretched on one end of the chassis part 30, and is in an open state. This opening angle stops at a position where the arm portion 11A of the cover body 11 comes into contact with a stop member 34 fixed to the chassis 30. Next, frame 2 of jacket holder section 20
1 is formed by bending a thin metal plate, and has a shape in which the magnetic sheet jacket 1 can be attached by sliding it through the insertion opening 21A, and the support shaft 31 is inserted into the holes at both ends of the left rear end. are fitted and are now swingable. When the cover section 10 is in the open state, the hook member 13 fixed to the cover main body 11 hooks and lifts the protruding piece of the frame 21, so that the jacket holder section 20 is rotated around the support shaft 31. Swings clockwise. Of the both side walls of the frame 21, the right side 2 on the side where the shutter 5 of the magnetic sheet jacket 1 is inserted.
1R has an opening 21B and a protrusion 21 that bends inward.
C is provided. Three protrusions 21D, 21E, and 21F are formed on the upper surface of the frame 21 by cutting and bending, and all protrude upward. A coil portion of the torsion spring 22 is wound and fitted into the protrusion 21D, and one end of the straight portion of the torsion spring 22 is hooked onto the side surface of the protrusion 21E. The other end of the torsion spring 22 is once bent downward and then bent in a right angle direction, and the engaging tip portion (hereinafter referred to as the tip portion) 22A is bent into a gentle U-shape, and loosely fits into the opening 21B. ing. The torsion spring 22 has an elasticity of 0.5
It is made of stainless steel wire with a diameter of ~0.8mm, and the cross section of the wire is circular. Note that the protrusion 21F is provided to restrict the position of the tip end 22A of the torsion spring 22 so that it does not penetrate too deeply. The other side of the frame 21, that is, the left side 21 of the side into which the recess 4D of the magnetic sheet jacket 1 is inserted.
An opening 21G is formed in L, into which the tip claw 23A of the jacket lock member 23 is inserted. The jacket lock member 23 is attached to the frame 2.
It is fitted into a stepped pin 24 implanted on the top surface of 1 and is rotatable, and is biased by a coil spring 25. A protruding piece 23B at the lower end of the jacket lock member 23 slides into contact with a cam plate 35, which will be described later.
Further, the jacket lock member 23 has a claw portion 23C on the upper surface side. A jacket ejection member 2 is mounted on the upper surface of the frame 21.
6 is rotatable by a stepped pin 27,
It is spring biased by a coil spring 28. A pin 29 is fixed to the tip of one arm of the jacket discharge member 26, and the pin 29 comes into contact with the tip surface of the magnetic sheet jacket. A notch 26A is provided at the tip of the other arm of the jacket discharge member 26, and engages with and disengages from the claw 23C of the jacket lock member 23. A rotating shaft 36 of a spindle motor is provided approximately in the center of the upper surface of the chassis portion 30, and the outer diameter of the cylindrical portion fits into the irregularly shaped hole 3A at the center of the core 3 of the magnetic sheet jacket 1, and is tapered. The portion serves as a guide surface during insertion into the irregularly shaped hole 3A. Furthermore, two positioning pins 37A and 37B are fixedly installed on the upper surface of the chassis portion 30, and both have an abutment surface on which the jacket 4 is placed, and a cylindrical portion that fits into the holes 4A and 4B of the jacket 4. , and a tapered portion that serves as a guide surface when inserting the jacket. Further, an elastic and flexible cam plate 35 is fixed to one side of the chassis portion 30. An inclined surface 35A is formed above the cam plate 35, and a cam surface 35B having a perspective surface is formed on the lower side surface thereof. The cam plate 35 is obtained by processing an elastic thin plate such as a stainless steel plate or a phosphorescent steel plate. Next, the operation of loading the magnetic sheet jacket 1 into the loading device according to the present invention will be explained. First, the eject button of the magnetic recording processing device is operated to open the cover section 10. In conjunction with this opening operation, the jacket holder portion 20 also swings and tilts upward, taking the shape as shown in FIGS. 1 and 2. Next, hold the magnetic sheet jacket 1 and place it in the specified posture as shown in the figure, and push it into the jacket holder section 20 of the loading device through the insertion opening 21A. During this insertion stroke, the side surface of the shutter 5 of the jacket 4 is lightly pressed against the tip 22A of the torsion spring 22, but the shutter 5 does not move. When the jacket 4 is continued to be pushed inward,
The tip 22A of the torsion spring 22 is the shutter 5.
falls into the small opening 5A. At about the same time or a little later, the front end surface 5C of the shutter 5 moves to the frame 2.
It abuts on a protrusion 21C fixed to the right side surface 21R of 1. When the jacket 4 is further pushed in, since the advance of the shutter 5 is blocked by the protrusion 21C, only the jacket 4 moves forward while the shutter 5 remains stopped, and the opening window 4C of the jacket 4 gradually opens. Then, near the final position of the jacket 4, the opening window 4C becomes fully open, and the recording surface of the magnetic sheet 2 inside is exposed. Incidentally, during this forward movement, the tip end 22A of the torsion spring 22 remains fitted into the small opening 5A of the shutter 5. Meanwhile, while the jacket 4 is moving forward, the shutter 5
In the process of opening the opening window 4C, the front end surface 4E of the jacket 4 comes into contact with a pin 29 fixed to the end of the arm of the jacket discharge member 26 and is pushed forward. As a result, the jacket discharge member 26 rotates counterclockwise about the stepped pin 27 against the coil spring 28. At the final point of this rotation, that is, when the jacket 4 is pushed into the deepest position, the claw 23A of the jacket locking member 23, which is biased by the spring, fits into the recess 4D of the jacket 4 and is locked therein. This stops the forward movement of the jacket 4 and also makes it impossible to pull out the jacket 4. Further, even if the loading device is turned upside down and the insertion port 21 is placed downward, the jacket 4 will not escape from the loading device and fall. At this time, the notch 26 at the tip of the other arm of the jacket ejection member 26
A indicates the claw portion 2 at the tip of the jacket lock member 23.
3C, the jacket ejection member 26 is maintained at rest. FIG. 4 is a plan view of the loading device with the jacket 4 loaded in a predetermined position. After inserting the magnetic sheet jacket 1 into the jacket holder section 20, if the cover section 10 is pushed down and closed, the jacket holder section 20 will also swing downward. During this swinging process, the lower protrusion 2 of the jacket lock member 23 that is locked
The tip of the cam plate 3B comes into contact with the inside of the inclined surface 35A of the cam plate 35, and while slightly bending the cam plate 35, the tip of the cam plate 35 descends almost directly below the frame 21 and reaches the side surface 3.
The process ends when 5C is reached. Also, during this downward stroke, the pin holes 4A, 4B of the jacket 4 and the irregularly shaped hole 3A of the core 3 are guided by the positioning pins 37A, 37B and each tapered part of the drive shaft 36, respectively, and finally by each cylindrical part. The jacket 4 and core 3 are then accurately positioned. At the end of this positioned downward stroke, the cover lock member 12 engages with the locking member 32,
The cover part 10 and the jacket holder part 20 are stopped and fixed to the chassis part 30. When the magnetic sheet 2 in the magnetic sheet jacket 1 is positioned in this position and the shutter 5 is opened, the spindle motor starts rotating in response to an input start signal, and the magnetic sheet 2 is placed in the opened window 4.
Recording/reproduction processing is performed by a recording head or a reading head provided below C. Magnetic sheet jacket 1 housed in a loading device
When taking out the jacket, by operating the eject button, the engagement between the cover locking member 12 and the locking member is released, the cover part 10 is opened by the tensile force of the coil spring 33, and the jacket holder 20 is also opened accordingly. . As the jacket holder 20 swings upward, the jacket lock member 23 also rises together, but the protruding piece 23B is moved to the left along the cam surface 35B of the cam plate 35 fixed to the chassis body 30A. Jacket lock member 23
rotates clockwise around the stepped pin 24. On the way that the protruding piece 23B reaches the leftmost end of the cam surface 35B, the distal end pawl 23A of the jacket locking member 23 is disengaged from the recess 4D of the jacket 4. Immediately before or after this engagement and disengagement, the pin holes 4A and 4B provided in the magnetic sheet jacket 4 in the rising process and the irregular shaped hole 3A in the center of the core 3 are opened.
, positioning pins 37A, 37B and drive shaft 36
The magnetic sheet jacket 1 is disengaged from the magnetic sheet jacket 1, and the magnetic sheet jacket 1 is moved slightly. As the jacket holder portion 20 continues to rise, the protruding piece 23B of the jacket lock member 23
rotates around the stepped pin 24 so as to be moved until it reaches the leftmost end of the cam surface 35B of the cam plate 35, and at this time the claw portion 2 of the jacket lock member 23
3C and the notch 26A provided in one arm of the jacket ejection member 26, the jacket ejection member 2 is released at the same time or slightly later.
6 is a stepped pin 27 due to the tensile force of the coil spring 28.
The pin 29 provided at the tip of the other arm strongly presses the tip 4E of the jacket 4, and the magnetic sheet jacket 1 is ejected from the outlet 21A. protrude nearby. When the magnetic sheet jacket 1 is projected, the right side surface 21R of the jacket holder part 20 locks the shutter 5 with the tip 22A of the torsion spring 22 inserted into the small opening 5A of the shutter 5. Since it protrudes, due to these relative movements, the opening window 4C of the jacket 4 is brought into an unopened state by the shutter 5 by the protruding length of the jacket 4. Next, if you grab the magnetic sheet jacket 1 with your fingertips and pull it out, the tip 22 of the torsion spring 22 will release.
Since the jacket 4 is pulled out while A is still engaged with the small opening 5A of the shutter 5, the opening window 4
The entire opening of C is completely closed by the shutter 5,
The shutter 5 is locked by engagement between a shutter lock member 6 inside the jacket 4 and a lock pawl 5B. If the magnetic sheet jacket 1 is further pulled out, the tip 22A of the torsion spring 22 will be attached to the shutter 5.
The magnetic sheet jacket 1 is pulled out from the insertion opening 21A while slidingly contacting the side surfaces of the shutter 5 and the jacket 4. In this way, the magnetic sheet jacket 1 can be taken out or replaced with another magnetic sheet jacket. FIG. 5 is a partial perspective view showing another embodiment of the jacket holder section 30 of the loading device according to the present invention. In the figure, the engagement tip 42A of the torsion spring 42 (hereinafter referred to as the tip) has a shape that is further extended than the shape in the previous embodiment, and the protrusion 42B of the torsion spring 42 is inserted into the small opening 5A of the shutter 5. Except when it is inserted, the tip 42A is in light pressure contact with the outer surface of the right side 21R of the frame 21 of the jacket holder section 20. By abutting the tip 42A in this manner, the protrusion 42
Since the position of B is regulated and always set at a predetermined position, the torsion spring 42 is connected to the small opening 5 of the shutter 5.
When it is inserted into A, it will not be deeply wedged and cause malfunction of the shutter 5. Note that when the torsion spring 42 is formed in this manner, the protrusion 21F provided on the upper surface of the frame 21 is unnecessary.

[Effect of the idea]

As explained in detail above, according to the present invention,
The operation when loading and unloading the magnetic sheet jacket into the loading device is performed reliably, and especially during the automatic shutter opening/closing operation, the pressurizing engagement member that engages with the small opening of the shutter is formed of an elastic wire material having a small circular cross section. Because of this, it comes into point contact with the inner surface of the small opening at approximately the center, and allows the shutter to move smoothly in the direction of movement during the shutter opening/closing operation. As a result, the engagement tip of the engagement member smoothly enters and exits the small opening, eliminating malfunctions and ensuring reliable opening/closing of the shutter and ejection of the jacket. Furthermore, since the pressurizing engagement member is composed of only one torsion spring and is set near the insertion opening, the structure is simple, the operation is stable, and assembly and maintenance are easy.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a schematic structure of the loading device and magnetic sheet jacket of the present invention, FIG. 2 is a side view thereof, FIG. 3A is a plan view, and FIG. 3B is a partial perspective view. FIG. 4 is a plan view of the loading device loaded with a magnetic sheet jacket. FIG. 5 is a partial perspective view showing another embodiment of the loading device according to the present invention. 6 and 7 are a perspective view and a plan view of a magnetic sheet jacket applied to the present invention. DESCRIPTION OF SYMBOLS 1... Magnetic sheet jacket, 4... Jacket, 4C... Opening window, 4D... Recessed part, 5... Shutter, 5A... Small opening, 10... Cover part, 12
... Cover lock member, 20 ... Jacket holder part, 21 ... Frame, 22, 42 ... Torsion spring, 23 ... Jacket lock member, 2
6... Jacket discharge member, 30... Chassis portion, 35... Cam plate.

Claims (1)

[Claims for Utility Model Registration] A magnetic sheet jacket loading device for a magnetic recording processing device that loads a magnetic sheet jacket containing a magnetic sheet and performs at least one of recording and reproducing image information, comprising: Shutter 5 for freely opening and closing the opening window 4C for inserting the recording/playback head in the case 1
an engagement tip that engages and disengages from a small opening 5A provided in the jacket holder section 20 to lock the shutter 5 and close the opening window 4C when the jacket 1 is removed from the jacket holder section 20; One torsion spring 22 made of an elastic wire with a circular cross section and having a diameter 22A at one end is provided near the insertion opening 21A of the loading device, and the frame 21 of the jacket holder section 20
a projection 2 on which the coil portion of the torsion spring 22 is wound and fitted onto a flat surface parallel to the magnetic sheet surface of the projection 2;
1D, a protrusion 21E that locks the other end of the torsion spring 22 and biases it, and a torsion spring 22.
a protrusion 21 that restricts the position of the engagement tip 22A;
1. A magnetic sheet jacket loading device for a magnetic recording processing device, characterized in that F is provided.