JPS62234262A - Loading/unloading device for magnetic sheet pack - Google Patents

Abstract

PURPOSE:To complete the dustproof effect by closing an insertion hole with the first shutter before a magnetic sheet pack is inserted and closing the insertion hole with the second shutter after the magnetic sheet pack is inserted. CONSTITUTION:When a magnetic sheet pack 10 is inserted into a bucket and a slider 26A is moved and led into a main body, the following-up piece 142 of a lever 138 is moved from the upper stage 146A of a cam 146 to a lower stage 146B, and the lever 138 is turned counterclockwise around a pin 60 by the energizing force of a spring in accordance with the movement of the piece 142 and the second shutter 132 closes an insertion hole 120. Since the insertion hole 120 is closed while the magnetic sheet pack 10 is inserted in the main body, the dustproof effect is completed. Since the first shutter 124 presses the magnetic sheet pack 10 to the side of a driving shaft by the energizing force of a spring 130, the rising of the magnetic sheet pack 10 is prevented.

Description

[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a device for attaching and detaching a magnetic sheet pack, and is particularly used for a magnetic recording or reproducing device such as an electronic camera, and is used for a magnetic sheet on which still image information, etc. is magnetically recorded. This invention relates to a magnetic sheet pack attachment/detachment device with a built-in magnetic sheet pack.

[Background of the invention]

Recently, imaging devices such as solid-state image sensors and picture tubes have been combined with recording devices that use magnetic sheets, which are inexpensive and have a relatively large storage capacity, to take purely electronic still photographs of subjects using rotating magnetic sheets. An electronic still camera system has been developed in which images are recorded on the camera and the images are played back using a separate television system or printer.

The magnetic sheets used in such systems are usually in the form of magnetic sheet packs. A magnetic sheet pack rotatably stores a magnetic sheet for magnetically recording still image information, etc., and this magnetic sheet pack can be used in a magnetic recording device built into an electronic camera or a playback device that is integrated with or separate from the magnetic sheet pack. It is installed and used.

When attaching a magnetic sheet puncture to a magnetic recording device or playback device in an electronic camera, connect the center hole provided in the center core of the magnetic sheet in the magnetic sheet punch directly to the rotational drive shaft of the magnetic recording or playback device. Attaching the magnetic sheet pack is troublesome and inconvenient, and there is a possibility that the magnetic sheet pack cannot be accurately attached to the magnetic recording device or the reproducing device.

In order to eliminate such troubles, a magnetic sheet pack attaching/detaching device has been proposed. By inserting the magnetic sheet pack into the bucket and then closing the bucket, the magnetic sheet of the magnetic sheet pack inside the bucket is attached to the rotational drive shaft of the apparatus main body. A center core is provided in the center of the magnetic sheet, and the rotation drive shaft is fitted into the center hole of the center core to rotate the magnetic sheet in the magnetic sheet pack.

By the way, the magnetic sheet pack is inserted into the waiting bucket from the insertion slot of the previous panel of the magnetic sheet puncture attachment/removal device, and after the insertion is completed, the bucket is moved by a cam and the magnetic sheet is guided to the position where it is inserted into the rotational drive shaft. A loading type magnetic seat back attachment/detachment device has been proposed. In this front-loading type magnetic sheet pack attaching/detaching device, a lid rotatably supported and biased in the closing direction is provided at the insertion opening for dustproofing purposes. The lid opens against the urging force due to the insertion force of the magnetic sheet pack when the magnetic sheet pack is inserted, and the lid remains in contact with the magnetic sheet pack during magnetic recording and reproduction. After magnetic recording and reproduction, the lid gradually rotates in the closing direction as the magnetic sheet pack is retracted, and the lid closes when the magnetic sheet pack is completely ejected from the bucket.

However, in the front-loading type magnetic sheet pack attachment/detachment device, the lid is open from the time the magnetic sheet pack is inserted through the insertion port until it is completely ejected, which poses a problem in terms of dust prevention. In particular, when a magnetic sheet pack is inserted into a bucket, a shutter automatically opens to expose the internal magnetic sheet pack as described later, and there is a risk that dust may adhere to the magnetic sheet.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and proposes a magnetic seat back attaching/detaching device that completely closes the insertion port even while the magnetic seat pack is inserted into the main body, and takes thorough dustproof measures. The purpose is to

[Summary of the invention]

In order to achieve the above object, the present invention provides a magnetic recording and reproducing apparatus that performs magnetic recording or reproduction on a magnetic sheet rotatably housed in a magnetic sheet pack.
A device body equipped with a head carriage, a drive source, etc.;
a support plate attached to the main body of the device and provided with a regulating groove; a slider supported movably in the magnetic sheet pack insertion direction by the support plate and formed with a cam; A bucket in which the bucket is fitted into a regulating groove of a support plate and guided by a cam of a slider, and the slider moves forward to guide the bucket to a position where a center core of a magnetic sheet engages with a rotational drive shaft of the drive source. a first shutter that is rotatably attached to the magnetic sheet pack insertion opening of the apparatus main body and is opened when the magnetic sheet pack is inserted; ,
The apparatus is characterized by comprising a second shutter that closes an insertion opening through which the magnetic sheet pack is drawn into the apparatus main body.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the magnetic seat back attachment/detachment device according to the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 5 shows a plan view of a magnetic sheet pack used in a magnetic recording or reproducing device such as an electronic camera, and FIG. 6 is a sectional view taken along line A--A in FIG. As shown in FIG. 5, the magnetic sheet pack 10 has a substantially rectangular shape,
Magnetic sheet 12 on which still image information etc. are recorded
is rotatably stored. A center core 14 as a reinforcing member is provided in the center of the magnetic sheet 12, and this center core 14 is exposed to the outside through a circular opening 16 of the magnetic sheet pack IO. A center hole 15 is formed in this center core 14, and an elastic piece (not shown) is formed in this center hole 15, and a drive shaft 32, which will be described later, is fitted into the center hole 15 of the center core 14 against the biasing force of this elastic piece. It is supposed to be done.

A window 18 in which a magnetic head, which will be described later, is located is opened in the magnetic sheet pack 10, and this window 18 is opened and closed by a slidable shutter 20. That is, the shutter 20 closes the window 18 to prevent dust from adhering to the magnetic sheet 12 before the magnetic sheet pack 10 is inserted into the bucket described below, and is installed in the bucket when the magnetic sheet pack 10 is inserted into the bucket described later. The shutter 20 is moved downward in FIG. 5 to open the window 18, and the magnetic sheet 12
Recording and playback becomes possible. In the magnetic sheet pack 10, a locking recess 22 is provided at the opposite end of the shutter 20.
is formed, and this recess 22 is used for temporarily fixing the magnetic sheet pack 10 when inserted into a bucket to be described later.

FIG. 1 is a perspective view of the magnetic seat back attachment/detaching device according to the present invention after assembly, and FIG. 2 is an exploded perspective view of the magnetic seat pack attachment/detachment device.
The apparatus main body 23, support plates 24A, 24B, sliders 268, 26B1, packet half-rests 27A, 27B, regulating plate holder 88, and push lid 112 are the main components.

First, the internal structure of the device main body 23 will be explained.A motor 30 for driving a magnetic sheet is disposed in the device main body 23, and a drive shaft 32 of this motor 30 is located at the center of the center core 14 of the magnetic sheet pack 10 shown in FIG. Fit into hole 15,
The magnetic sheet 12 is rotated within the magnetic seat back 10 at a predetermined number of rotations. The device main body 23 also includes a magnetic head 3.
4. Head carriage 3 with magnetic head 34 attached
6. A feed motor 40 for moving the head carriage 36 via a gear reduction device 38 is provided. Therefore, when the feed motor 40 is rotated at a predetermined number of revolutions, the head carriage 36 is moved at a predetermined pitch, and thereby the magnetic head 34 is moved in the radial direction of the magnetic sheet 12, and a still image is printed on the magnetic sheet 12. Information can be magnetically recorded or reproduced track by track.

The pair of support plates 24A and 24B are attached to the sides of the device main body 23. Oval-shaped regulation grooves 66, 67, and 68 are formed in one support plate 24A, and the bucket half-rested 27A
The movement of the guide pins 54A, 54B, and 54C in the magnetic seat back insertion direction and in a direction perpendicular to the insertion direction is restricted. The guide pin 5 of the bucket half-rest 27A is installed in the regulation groove 66.
4A is fitted and regulated, the guide pin 54B is fitted into the regulation groove 67 and regulated, and the guide pin 54C is fitted into the regulation groove 68 and regulated. Furthermore, the other support plate 24
A vertical groove 42.44 is formed in B, and this vertical groove 42.4
4, pins 55A and 55B of the bucket half-rest 27B are inserted.

A pair of sliders 26A and 26B are attached to support plates 24A and 24B fixed to the device main body 23 so as to be slidable in the insertion direction of the magnetic sheet pack 10. That is, lateral grooves 56 and 58 are formed in one slider 26A, and this lateral groove 5
6.58, a pin 60.58 is provided to protrude outward from the support plate 24A.
62 is fitted, and the slider 26A is slidable in the magnetic seat back insertion direction with respect to the support plate 24A. Further, the other slider 26B is formed with a lateral groove 64 and a cam groove 66, and a pin 69 protruding outward from the support plate 24B is connected to the lateral groove 66.
4, and the pin 70 is fitted into the cam groove 66. This allows the slider 26B to freely slide in the magnetic seat back insertion direction with respect to the support plate 24B. slider 26A,
A rack 90 is provided on a part of the lower edge of 26B, and the rack 90 meshes with a gear 92. The gear 92 is connected to a drive motor 94 via a coaxial gear 91 and a gear reduction device 93.

A cam groove 72 for guiding the guide bin 54C of the bucket half-rest 27A is formed in one slider 26A. The cam groove 72 restricts the movement of the bucket half body 27A in the vertical movement. As shown in FIG. 2, the cam groove 72 has a tapered portion 72A.
and a flat portion 72B following this. The cam groove 66 of the other slider 26B has a bucket half-closed 27B.
The pin 55B is inserted and guided, and the cam groove 66 controls the vertical movement of the bucket half-rest 27B. The cam groove 66 is formed of an upper flat part 66A, a tapered part 66B, and a lower flat part 66C.

The bucket 27 is formed of a pair of bucket halves 27A and 27B, and the bucket halves 27A and 27B are bent to have a substantially U-shaped cross section, so that the magnetic sheet pack 10 can be stored therein. An opening is formed between the bucket halves 27A and 27B, into which a drive shaft 32, a magnetic head 34, etc. on the apparatus main body 23 can be inserted. The bucket half-rest 27A is the regulation groove 66, 67, 6 of the support plate 24A.
8. The magnetic sheet pack is pulled in (horizontal movement) and raised and lowered by the cam groove 72 of the slider 26A. Bucket) 27B does not perform a retracting operation, and the support plate 24
Only the vertical grooves 42 and 44 of B and the cam groove 66 of the slider 26B perform the vertical movement corresponding to the vertical movement of the bucket half-rest 27A.

Next, the mounting structure of the regulation plate 74 will be explained.

A support column 76.78 is erected at the rear end of the device main body 23, and a pin 80.78 is provided to project laterally.
A regulation plate holder mounting plate 84 is rotatably supported via 82 . Further, a regulating plate holder 88 is pivotally supported at the tip of the regulating plate holder holder 84 via a pin 86 . A regulation plate 74 is attached to the back surface of the regulation plate holder 88, and a PG sensor 96 is attached to the side of the regulation plate 74. This regulating plate 74 has the function of aligning the magnetic sheet 12 along the magnetic head 34 side when the magnetic head 34 performs magnetic recording and reproduction on the magnetic sheet 12. Furthermore, a screw 98 for adjusting the height of the regulating plate 74 is provided near the PG sensor 96. The lower end of the screw 98 is connected to the drive shaft 3
The height of the regulating plate 74 is adjusted by being brought into contact with the upper end of the regulation plate 2.

The regulating plate holder mounting plate 84 has pins 100 facing outward.
This pin 100 is guided by a cam 102 formed on the upper edge of the slider 26A, and raises and lowers the regulating plate holder 88 and the regulating plate 74 at a predetermined timing.

Next, the center core pushing mechanism will be explained. Device body 2
At the back end of 3, there is a column 104 installed in parallel with the columns 76 and 78.
．． 106 is provided, and a push lid 112 is attached to this support post 104, 106 via a pin 108, 110 that projects laterally.
is rotatably supported. A pair of V-shaped protrusions 114, 114 are bent at the tip of the pusher M112, and the protrusions 114, 114 press the center core 14 of the magnetic sheet 12 toward the drive shaft 32. A pin 116 is provided on the push lid 112 to protrude outward, and this pin 116 is connected to the slider 26B.
It is guided by a cam 118 formed on the upper edge of the protrusion 114, and raises and lowers the protrusion 114 at a predetermined timing.

Next, the shutter mechanism of the magnetic seat back insertion slot will be explained. A front panel 122 in which an insertion port 120 is opened is attached to the front side of the main body 23 of the device. Front panel 12
2 has a first shaft 12 facing the insertion opening 120.
4 is provided. The first shutter 124 has pins 1 on both ends.
26 and 128 are provided in a protruding manner, and the first shutter 124 is rotatably attached to the support plates 24A and 24B via these pins 126 and 128. Furthermore, the first shutter 124 is connected to the spring 13
0 in the direction of closing the insertion port 120.

A second shutter 132 is provided on the back side of the front panel so as to be movable in the vertical direction, and the second shutter 132 also opens and closes the insertion opening 120 of the front panel 122. The second shutter 132 is pivoted at both ends to a pair of levers 138, 140 through holes 134, 136. Lever 138.14
0 are swingably attached to the support plates 24A and 24B via the pins 60 and 69 of the support plates 24A and 24B, respectively. The levers 138 and 140 each have an outwardly bent follower piece 1.
42.144 is formed, and the driven piece 142.144 is a cam 146.1 formed on the upper edge of the sliders 26A, 26B.
48, and moves the second shutter 132 up and down at a predetermined timing.

The operation of the magnetic sheet pack attachment/detachment device constructed as described above is as follows. First, when the magnetic seat puncture 10 is inserted into the bucket 27 in the state shown in FIG. 3(A),
As described above, the magnetic sheet pack 10 is temporarily fixed in the bucket, and at this time the shaft 20 of the magnetic sheet pack 10
is opened, and the window portion 18 of the magnetic sheet pack 10 is opened. At this time, the guide bin 54C of the bucket half 27A is
Although the bucket half 27A is located at the upper end of the tapered portion 72A of the cam groove 72 shown in the figure, it is located at the horizontal portion of the regulating groove 68, so that the bucket half 27A does not perform the retraction operation of the magnetic sheet pack 10.
(horizontal movement) only. In this state, the bucket saw 1-27A is at a position away from the drive shaft 32. In addition, for the bucket half-closed 27B, the bins 55A and 55B have vertical grooves 42.4.
Retracting direction (horizontal direction) because it is inserted into and regulated by 4.
Unable to move, he waits in that position.

Further, the guide pin 100 of the adjustment plate holder mounting plate 84 is located on the flat portion 102A of the cam 102 of the slider 26A and remains stationary. From this state, sliders 26A and 26B
When moves in the magnetic sheet pack insertion direction on Figure 2,
The guide bins 54A, 54B, and 54C of the bucket 27A are first positioned in the horizontal portions of the regulation grooves 66, 67, and 68 of the support plate 24A, and the bucket 27A is retracted (horizontally moved). FIG. 3(B) shows this state.

After that, the guide bins 54A, 54B, and 54C are connected to the regulation groove 66.
．． 67. When entering the vertical part of 68, horizontal movement is restricted, and the guide bin 54C is guided by the tapered part 72A of the cam 72 and descends, and along with this, the bucket half 27A descends toward the drive shaft 32 side. At the same time, the bucket half-rest 27B is also lowered, and the center core pusher 4 of the magnetic sheet pack 10 is attached to the drive shaft 32. This state is shown in Figure 3 (C
).

On the other hand, the guide bins 54A, 54B, and 54G.

3 (A) and (B) when moving 55A and 55B.
) As shown in FIG.
00 is the flat part 102 of the cam lO2 of the slider 26A initially.
A, the alignment plate holder attachment plate and the alignment temporary holder 88 do not change their positions. When the guide bin 100 of the temporary adjustment holder mounting plate 84 is located at the tapered portion 102B, the adjustment plate holder 88 is guided by the tapered portion 102B and moves downward, as shown in FIG. 3(C), and the temporary adjustment 74 is moved downward. It is located within the window portion 18 of the magnetic sheet pack 10 and comes to face the magnetic head. In this state, the magnetic head is located in the window 18, and the magnetic sheet pack 10
It is possible to perform magnetic recording or reproduction on the magnetic sheet 12 of .

Next, the operation of the pusher M112 will be explained with reference to FIGS. 4(A) and 4(B). Push! The guide bin 116 of the i 112 is initially located on the flat part 118A of the cam 118 of the slider 26B, and as shown in FIG. 4(A), the bucket/throat half body 27A,
27B does not move while moving the magnetic sheet pack 10 to the mounting position. When the sliders 26A and 26B move and the center core 14 of the magnetic sheet 12 is inserted into the drive shaft 32, the guide pin 116 is inserted into the V-groove 118B of the cam 118.
This causes the pusher M112 to press into the bin 108.11.
0 and moves toward the center core 14 side. When the guide pin 116 reaches the deepest part of the V-groove portion 118B, the center core is pushed by the projections 114, 114, and the center core 14 is securely attached to the drive shaft 32. After the center core pushing operation, the guide pin 116 starts moving up the groove 118B as shown in FIG.
14 and 114 are separated from the center core 14 and become ready for magnetic recording and reproduction.

To take out the magnetic sheet pack 10, the above operation is reversed. That is, when the slider 26 moves in the opposite direction, the guide pin 116 of the pusher M112 first reaches the deepest part of the V-groove 118B from the position shown in FIG. 4(B), performs a center core pushing operation, and stops the rotation of the magnetic sheet. Then, as the slider 26 moves, the guide pin 116 or the V groove 11
8B, and the push lid 112 is separated from the center core 14.

Next, the guide pin 100 of the regulating plate holder attachment plate 84 is pushed up by the tapered portion 102B and rises, and accordingly the regulating plate 74 is pulled out from the window portion 18 of the magnetic sheet pack 10 and retracted upward. While the regulating plate holder 88 and the regulating plate 74 are retracting upward, the guide pin 54A of the bucket
, 54B, 54C, 55A, 55B are sliders 26A,
The tapered portions 72A, 66B of the cam 72.66 of 26B have not yet been reached, and the pins 54A, 54B, 54C have fitted into the vertical portions of the regulating grooves 66.67.68, and the pins 55A, 55
B does not move because it is fitted into the vertical grooves 42 and 44, so the bucket does not move and collide with the regulating plate holder 88. When the upward movement of the regulating plate holder 88 is completed, the bucket guide pins 54A, 54B,
54C.

55A and 55B are tapered portions 7 of sliders 26A and 26B.
2A, 66B, the guide pins 54A, 54B, 5 receive push-up force from the child bar portions 72A, 66B.
4C, 55A, and 55B are moved in the opposite trajectory to the above, that is, upward, and along with this, the bucket half-rests 27A and 27B are also moved upward. Next, guide pins 54A, 54B, 54C
moves horizontally to the right, and the bucket half 27A returns to the insertion and removal position of the magnetic sheet pack 10 shown in FIG. 3(A).

The loading and unloading operations of the magnetic sheet pack attaching/detaching device according to the present invention have been described above. Next, the operations of the shack 124 and 132 provided in the insertion slot 120 will be explained with reference to FIGS. Explain.

The driven piece 142 of the lever 138 of the second shutter 132 contacts the upper stage 146A of the cam 146 of the slider 26A, so the second shutter 132 is located at the lower side as shown in FIG. There is.

First, when the magnetic sheet pack 0 is inserted into the insertion slot 120 of the front panel 122, the first shutter 124 is pushed by the tip of the magnetic sheet pack 10, and gradually moves against the biasing force of the spring 130 as shown in FIG. ) and rotate clockwise to open. In this state, the first shutter 124 is in contact with the upper surface of the magnetic sheet pack 10.

Next, the magnetic sheet pack is inserted into the bucket 27,
When the slider 26A moves and is drawn into the main body, the driven piece 142 of the lever 138 moves from the upper stage 146A to the lower stage 146B of the cam 146, and accordingly, the lever 138 rebounds around the pin 60 due to the biasing force of the spring. Rotating clockwise, the second shutter 132 closes the insertion port 120 as shown in FIG. 7(B). As a result, magnetic sheet pack 10
Since the insertion port 120 is closed while the device is inserted into the main body, dust-proof measures are ensured.

Further, since the first shutter 124 presses the magnetic sheet pack 10 toward the drive shaft 32 by the biasing force of the spring 130, it is possible to prevent the magnetic sheet pack 10 from floating up. Furthermore, since the second shutter 132 closes the insertion opening 120 while the magnetic sheet bank IO is inserted into the main body, it is possible to prevent the magnetic sheet pack from being inserted erroneously.

(Effects of the Invention) As explained above, according to the magnetic sheet pack attachment/detachment device according to the present invention, the first shutter is rotatably supported to open and close the insertion opening, and the first shutter is supported so as to be raised and lowered to open and close the insertion opening. The first shutter closes the insertion opening before the magnetic sheet pack is inserted, and the second shutter closes the insertion opening after the magnetic sheet pack is inserted. The pack will be fully dust-proof.

[Brief explanation of drawings]

FIG. 1 is an assembled perspective view showing the overall structure of the magnetic sheet pack attaching/detaching device used in this embodiment, and FIG. 2 is an exploded perspective view showing the overall structure of the magnetic sheet pack attaching/detaching device used in this embodiment. Figures 3 (A), (B), and (C) are side views showing the insertion and removal positions of the magnetic sheet pack of this embodiment, and Figures 4 (f) and (B) are side views showing the center core pressed state. Figure 5 is a plan view of the magnetic sheet pack used in this example, Figure 6 is a sectional view of the magnetic sheet pack taken along line A-A in Figure 5, and Figures 7 (A) and (B). FIG. 2 is a side view showing the opened and closed states of the shutter of this embodiment. 10... Magnetic sheet pack, 12... Magnetic sheet, Engineering 4... Center core, 24A, 24B...
・Support plate, 26A, 26B...Slider, 2
7... Bucket, 27A, 27B... Bucket half rest, 88... Regulating plate holder, 32... Drive shaft, 120... Insertion port, 124... First shutter, 132... second shutter, 140.
...Lever, 146.148...Cam. Agent: Kenzo Matsuura, Patent Attorney Figure 4 (A)

Claims (1)

[Scope of Claims] A magnetic recording/reproducing device that performs magnetic recording or reproduction on a magnetic sheet rotatably housed in a magnetic sheet pack, comprising: a device main body provided with a magnetic head, a head carriage, a driving source, etc.; A support plate attached to the main body and provided with a regulating groove; a slider supported by the support plate so as to be movable in the magnetic sheet pack insertion direction and formed with a cam; and a pin that houses the magnetic sheet pack and protrudes from the side end. a bucket that fits into a regulating groove of a support plate and is guided by a cam of a slider, and as the slider moves forward, the bucket is guided to a position where a center core of a magnetic sheet engages with a rotational drive shaft of the drive source; The first is rotatably attached to the magnetic sheet pack insertion slot of the device main body and is opened when the magnetic sheet pack is inserted.
and a second shutter that is supported in the insertion opening of the magnetic sheet pack so as to be able to rise and fall and is interlocked with the slider, and closes the insertion opening when the magnetic sheet pack is drawn into the apparatus main body. A device for attaching and detaching magnetic sheet packs.