JP3063221B2 - Recording and / or playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording and / or reproducing apparatus using a tape cassette containing a magnetic tape as a recording medium.

[0002]

2. Description of the Related Art Conventionally, as a recording and / or reproducing apparatus using a tape cassette containing a magnetic tape as a recording medium, a recording and / or reproducing apparatus in which a tape cassette is loaded using a cassette holder into which the tape cassette is inserted and held. And / or a playback device is used.

[0003] Insertion of a tape cassette into a cassette holder is performed through a cassette insertion port provided in the main body of the apparatus.

[0004]

If the cassette insertion port provided in the apparatus main body is left open, dust enters the apparatus main body through the cassette insertion port and is disposed in the apparatus main body. The recording and playback unit and magnetic tape
This makes it impossible to accurately record and reproduce information signals.

Therefore, this kind of recording and / or reproducing apparatus is provided with a lid for closing the cassette insertion slot except when the tape cassette is inserted or removed. The lid is
The cassette insertion opening is opened and closed by being rotatably supported by the apparatus main body. It is desirable that the lid be opened and closed in connection with insertion and removal of the tape cassette from the recording and / or playback device.

[0006] In a recording and / or reproducing apparatus which is used in a portable manner, it is necessary to quickly exchange a tape cassette. For example, when used in a place such as a news site, it may be necessary to continuously shoot images. In the case where such a rapid tape cassette exchange is required, a mechanism provided with a mechanism for opening and closing the lid in connection with the movement of the cassette holder requires a time for opening and closing the lid. And the tape cassette cannot be replaced quickly.

Accordingly, the present invention provides a recording and / or reproducing apparatus capable of opening and closing the lid alone to insert and remove the tape cassette while allowing the lid to be opened and closed with respect to the movement of the cassette holder. It has been proposed for the purpose of doing so.

[0008]

A recording and / or reproducing apparatus according to the present invention proposed to achieve the above-mentioned object has a tape cassette inserted therein, the tape cassette held therein, and the tape cassette. A cassette holder that is moved and operated between an insertion / removal position where insertion / removal is possible and a cassette mounting position where a tape cassette is mounted on a cassette mounting portion, and a cassette insertion opening provided opposite to the cassette holder. A lid rotatably supported by the apparatus main body so as to be opened and closed outside the cassette insertion slot, and the cassette insertion slot is opened before the tape cassette is inserted.
Bias the lid in the right direction and insert the tape cassette.
After that, an urging member for urging the lid in a direction to close the cassette insertion slot, and rotating the lid in a direction to close the cassette insertion slot in relation to the movement of the cassette holder toward the cassette mounting position, A link mechanism for rotating the lid in a direction in which the cassette insertion opening is opened in association with the movement of the cassette holder in the insertion / removal position direction.

[0009]

In the recording and / or reproducing apparatus according to the present invention, the opening and closing operation of the lid is performed in connection with the movement of the cassette holder.
By the manual operation, the lid can be opened and closed without being related to the movement of the cassette holder. The lid is held at the open position and the closed position by receiving the urging force of the urging member.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the recording and / or reproducing apparatus according to the present invention will be described with reference to the drawings.

[0011] The recording and / or reproducing apparatus according to the present invention comprises:
A tape cassette accommodating a magnetic tape is used as a recording medium, and a small first tape cassette 301 shown in FIG. 25 and a large second tape cassette 302 shown in FIG. 26 having different sizes are selected. It is configured so that it can be used in general.

[1] First and Second Tape Cassettes (FIGS. 16, 17, 25 and 26) As shown in FIG.
A magnetic tape 306 is wound around a pair of tape reels 304 and 305 rotatably supported in the first cassette half 303. This magnetic tape 306
The first cassette half 303 is guided by a guide member (not shown) and travels along the open front surface of the first cassette half 303 between one tape reel 304 and the other tape reel 305. The open front surface on which the magnetic tape 306 runs is opened and closed by a lid 308.

Each of the tape reels 304 and 305 around which the magnetic tape 306 is wound is pressed at the center thereof by a reel holding spring 307 attached to a top plate in the first cassette half 303 so that the first cassette The half 303 is pressed and urged toward the bottom surface side. As shown in FIG. 16, each of the tape reels 304 and 305 is provided with a reel shaft engaging hole 304a and 305a provided on the bottom side through a circular opening formed in the bottom of the first cassette half 303. Facing the outside.

The second tape cassette 302, which is formed large so as to have a width L larger than the width S of the first tape cassette 301, has the same basic configuration as the first tape cassette 301. As shown in FIG. 26, a magnetic tape 306 is wound around a pair of tape reels 310 and 311 rotatably supported in a second cassette half 309. This magnetic tape 306
Is guided by a guide member (not shown) and travels between one tape reel 310 and the other tape reel 311 along the open front surface of the second cassette half 309. The open front surface on which the magnetic tape 306 runs is opened and closed by a lid 316.

Each of the tape reels 310 and 311 around which the magnetic tape 306 is wound is a reel holding coil spring 31 attached to the top plate side of the second cassette half 309.
Reel holding member 31 urged by 3,315
The second cassette half 309 is pressed and urged through the second cassette half 309 via the bottom surface 2314. In addition, each tape reel 31
17, the reel shaft engaging holes 310a and 311a provided on the bottom side are formed on the outer side through circular openings formed in the bottom surface of the second cassette half 309, as shown in FIG. I'm coming.

On the bottom surface of the second cassette half 309, as shown in FIG. 12, guide grooves 31 and 94 provided in a recording and / or reproducing apparatus are inserted.
7,318 are provided. These guide grooves 317,
Reference numeral 318 is provided along a direction in which the second tape cassette 302 is inserted into the recording and / or reproducing apparatus, that is, a direction perpendicular to the front surface of the second cassette half 309.

[2] Outline of the recording and / or reproducing apparatus according to the present invention and a cassette loading mechanism (FIGS. 1 to 5, FIGS. 19 and 20) The first or second tape cassette 301,
As shown in FIG. 1, in the recording and / or reproducing apparatus according to the present invention to which the 302 is mounted, a pair of reel shafts 7 and 8 are provided on a chassis 1 disposed in a casing (not shown) constituting an apparatus main body. Is provided. These reel shafts 7 and 8 are rotated by a reel drive motor (not shown). The reel shafts 7, 8 are movable along the reel shaft moving guide grooves 9, 10 provided in the chassis 1 in the directions of arrows A and B in FIG. These reel shafts 7, 8
Guided by the respective reel shaft movement guide grooves 9, 10, the tape reels 304,
The moving operation is performed between a position corresponding to the distance between the tape reels 305 and the position corresponding to the distance between the tape reels 310 and 311 of the large second tape cassette 302.

The chassis 1 also receives a rotating magnetic head device guide that runs with a magnetic tape wound thereon. This rotating magnetic head device mounts a magnetic head on a rotating drum around which a magnetic tape is wound, and makes the rotating magnetic head and the magnetic tape wound obliquely around the rotating drum run in relative sliding contact with each other. Recording and playback.

Further, on the chassis 1, first or second tape cassettes 301 and 302 inserted through a cassette insertion opening formed in the front portion of the housing are mounted.
A cassette loading mechanism is provided for transporting and mounting the cassette to the cassette mounting section configured above. As shown in FIG. 1, the cassette loading mechanism includes a frame 2 mounted on a chassis 1, a cassette holder 3 supported by the frame 2, and a pair of loading plates 5 for moving the cassette holder 3 with respect to the frame 2. , And 6 as main components.

The frame 2 includes a pair of side plates 12 and 13 mounted on both sides of the chassis 1 so as to be erected, and a top plate 11 disposed between upper ends of the side plates 12 and 13. Prepare. The top plate 11 is disposed substantially parallel to the chassis 1 by the side plates 12 and 13. The side plates 12, 13 and the top plate 11 are formed of a metal plate or the like, and are connected to each other by means such as screws to form the frame 2.

Each of the side plates 12 and 13 has a cassette holder 3
And second holder support slits 2 for supporting
1, 23, 22, and 24 are provided. Each side plate 12,
The thirteen first holder support slits 21 and 23 are provided substantially at the center of the corresponding side plates 12 and 13, form a pair with each other, and are provided to face each other. These first holder support slits 21 and 23 have a horizontal portion made parallel to the chassis 1 and a vertical portion made perpendicular to the chassis 1. The horizontal portion is continuous with the upper end of the vertical portion at the rear end, and together with the vertical portion, constitutes L-shaped first holder support slits 21 and 23. Also,
Second holder support slits 22, 2 of each side plate 12, 13
Reference numerals 4 are provided at front positions of the corresponding side plates 12 and 13 so as to form a pair with each other and to be opposed to each other. These second holder support slits 22 and 24 are
And a vertical portion made perpendicular to the chassis 1. The horizontal portion is continuous with the upper end portion of the vertical portion at the rear end portion, and forms the L-shaped second holder support slits 22 and 24 together with the vertical portion.

As shown in FIGS. 1 and 2, the cassette holder 3 has a bottom plate 43 and side plates 42, 42 projecting in pairs on both sides of the bottom plate 43. The bottom plate 43 and the side plates 42, 42 are formed integrally by bending a metal plate. These side plates 42, 42 are arranged at intervals corresponding to the width L of the second tape cassette 302. Therefore, the bottom plate 43 between each side plate 42, 42
On the top, the first or second tape cassette 301, 302
Can be inserted with the front part as the insertion end.

A pair of first and second support shafts 46, 47 are bridged between the upper end portions of the side plates 42, 42. The first support shaft 46 is supported at both ends by engagement with first shaft support recesses 42a, 42a formed on the rear side of the upper ends of the side plates 42, 42. Further, the second support shaft 47 is attached to each side plate 4.
Both ends are engaged with and supported by second shaft support recesses 42b, 42b formed on the front side of the upper ends of the second and second upper ends. These support shafts 46 and 47 are attached to each side plate 4.
The shaft holding plate springs 61 and 63 attached to the upper end sides of the shafts 2 and 42 are pressed and supported. The shaft holding plate springs 61, 63 are fixed at the center to the upper ends of the side plates 42, 42 by setscrews 60, 62, and press and support the respective support shafts 46, 47 by the free ends. I have.

First and second holder support pins 40, 40, 41, 41 protrude from the side plates 42, 42 of the cassette holder 3 toward the outside of the cassette holder 3, respectively. The first holder support pins 40, 40
The second holder support pins 41, 41 are provided on the rear side of the side plates 42, 42, and are provided near the bottom plate 43 at a substantially central position of the side plates 42, 42. Cassette holder 3
Is to connect these holder support pins 40, 40, 41, 41
Each of the first and second support slits 21, 23, 22, and 24 is inserted into the support slits and supported by the frame 2. That is, as shown in FIG. 3, the cassette holder 3 inserts the first holder support pins 40, 40 into the first support slits 21, 23, and inserts the second holder support pins 41, 41 into the second support slits. The slits 22 and 24 are inserted.

In the cassette holder 3, as shown in FIG. 3, the first holder support pins 40, 40 are located at the front ends of the horizontal portions of the first support slits 21, 23,
The holder support pins 41, 41 of the second support slit 2
When located in the horizontal portion of 2, 24, the first or second
Are placed at the cassette insertion / removal position where the tape cassettes 301 and 302 are inserted / removed. The second support slit 2
The horizontal portions 2 and 24 extend further forward than the positions of the second holder support pins 41 and 41 when the cassette holder 3 is at the cassette insertion / removal position. This second
The portions on the front side of the holder support pins 41, 41 are used for supporting the loading plates 5, 6 as described later. As shown in FIG. 5, the cassette holder 3 has the first holder support pins 40, 40 at the lower end portions of the vertical portions of the first support slits 21, 23, that is, at the position closest to the chassis 1. When the second holder support pins 41, 41 are located at the lower ends of the vertical portions of the second support slits 22, 24, the first or second tape cassette 301, 302 is mounted on the cassette mounting portion. .

The pair of loading plates 5 and 6 are
Corresponding to each side plate 12, 13 of the frame 2, the side plate 12, 13 is supported movably in the front-rear direction. That is, each of the loading plates 5 and 6 has loading plate support pins 78 and 78 at the front end side, and the loading plate support pins 78 and 78 are inserted and supported in the second support slits 22 and 24. Each of the loading plates 5 and 6 has a supported slit 2 on the rear side.
5, 26. Each side plate 12, 13 is provided with a loading plate support slit 77, 77 so as to overlap with the supported slits 25, 26. The supported slits 25 and 26 and the loading plate supporting slits 77 and 77 are respectively connected to the side plates 1.
2, 13 and the loading plates 5 and 6 are formed in the front-back direction. A pair of loading plate support rollers 39, 39 is inserted and supported in a portion where the respective supported slits 25, 26 and the respective loading plate support slits 77, 77 overlap. The pair of loading plate support rollers 39, 39 are movable in the front-rear direction within the supported slits 25, 26 and the loading plate support slits 77, 77. , 13 are movably supported in the front-rear direction.

The loading plates 5 and 6 have first and second loading slits 27, 29 and 28, respectively.
30 are provided. First loading slit 2
The reference numerals 7 and 29 are provided at substantially the center of each of the loading plates 5 and 6 so as to face each other. These first loading slits 27 and 29 are formed as slits inclined in a direction away from the chassis 1 from the front side to the rear side. The second loading slits 28 and 30 are provided on the front side of the loading plates 5 and 6 so as to face each other. These second loading slits 28, 30 are inclined in a direction away from the chassis 1 from the front side toward the rear side, and are formed as slits parallel to the respective first loading slits 27, 29.

Each of the first loading slits 27, 29 is provided with a respective one of the first loading slits 27, 29.
Are inserted. Also,
The second loading slits 28, 30 are respectively inserted with second holder support pins 41, 41 inserted in the second support slits 22, 24. Therefore, each first
The holder support pins 40, 40 are respectively connected to the first loading slits 27, 29 and the first support slits 21, 23.
Are located in the overlapped portion. Similarly, each of the second holder support pins 41, 41 is located at a portion where each of the second loading slits 28, 30 and each of the second support slits 22, 24 overlap.

Each of the loading plates 5 and 6 is moved in the front-rear direction by a loading motor 36 attached to one side plate 13 of the frame 2. The loading motor 36 is driven and controlled by a control device (not shown) as described later. The driving force of the loading motor 36 is transmitted to the loading plate 6 via a reduction gear 37 and a transmission gear 34 attached to one side plate 13. The reduction gear 37 is constituted by a plurality of spur gears meshed in sequence. The transmission gear 34 is attached to one end of a transmission gear support shaft 35 rotatably supported by the side plates 12, 13 so as to extend between the side plates 12, 13, and is attached to an upper end of the loading plate 6. It meshes with the provided rack gear portion 32. On the other end side of the transmission gear support shaft 35, a transmission gear 33 meshing with the rack gear portion 31 provided at the upper end of the other loading plate 5 is attached. These transmission gears 33 and 34 are integrally attached to the transmission gear support shaft 35 and are rotated at the same speed. Therefore, each of the loading plates 5 and 6 is moved and operated in the same direction at the same speed by the rotation of the loading motor 36.

When the recording and / or reproducing apparatus is not used,
At the start of the loading operation for transporting and mounting each of the tape cassettes 301 and 302 to the mounting position on the chassis 1, as shown in FIG.
Is located on the cassette insertion port side. At this time, the cassette holder 3 holds the holder support pins 40, 40, 41,
Since 41 is located at the rear end of each of the loading slits 27 and 28, it is placed at the cassette insertion / removal position.
When the cassette holder 3 is moved to the cassette insertion / removal position in this way, the first through the cassette insertion opening provided in the housing.
Alternatively, the second tape cassettes 301 and 302 are inserted and removed.

Then, each of the loading plates 5 and 6 is attached to the cassette holder 3 by the first or second tape cassette 30.
When 1,302 is inserted to a predetermined position, as shown in FIG. 4, the loading motor 36 is driven and moved backward in the direction of arrow C in FIG. The cassette holder 3 moves the holder supporting pins 40, 40, 41, 41 to the respective supporting slits 21, 21 by moving the loading plates 5, 6.
3, 22 and 24 are moved rearward along the horizontal portions.

Further, when each of the loading plates 5, 6 is moved rearward, the cassette holder 3 moves each of the holder supporting pins 40, 40, 41, 41 by the movement of the loading plates 5, 6. Support slits 21, 23,
5 is moved along the vertical portions 22 and 24 in the direction of arrow E in FIG. Each of the loading plates 5 and 6 is moved rearward in the direction of arrow C in FIG. 5, and as shown in FIG.
0, 40, 41, 41 are each loading slit 27,
When the cassette holder 3 is located at the front end of the cassette holders 29, 28 and 30, the cassette holder 3 is moved to a loading position where the tape cassettes 301 and 302 are mounted on the cassette mounting portions. At this time, the first inserted in the cassette holder 3
Alternatively, the second tape cassettes 301 and 302 are positioned and mounted on the cassette mounting portion, and the reel shafts 8 and 9 correspond to the corresponding reel shaft engaging holes 304a, 305a, 310a and 31.
1a.

The first or second tape cassette 301 or 302 mounted on the cassette mounting portion is
8, 316, the closed front portion is opened, and the magnetic tape 306 is pulled out, wound around a tape guide drum including a rotating drum of a rotary magnetic head device, and becomes ready to run.

Then, when the cassette holder 3 is moved to the loading position and each of the loading plates 5, 6 is moved forward in the direction of arrow D in FIG.
By the movement of these loading plates 5, 6, each holder support pin 40, 40, 41, 41 is connected to each support slit 21,
It is moved in the direction away from the chassis 1, which is on the upper side in the direction of arrow F in FIG. Further, when the loading plates 5 and 6 are moved forward, the cassette holder 3 moves the holder support pins 40 and 40,
4, 41 are moved forward along the horizontal portions of the support slits 21, 23, 22, 24 in the direction of arrow D in FIG. 4, and return to the cassette insertion / removal position as shown in FIG.

As shown in FIGS. 1 and 19, a holder lock arm 14 serving as a locking member is attached to the top plate 11 of the frame 2. The holder lock arm 14 is a long arm, and the base end 17 on the rear side of the frame 2 is rotatably supported at a substantially central position of the top plate 11. A base end 17 of the holder lock arm 14 is supported by lock arm mounting portions 18 and 19 provided on the top plate 11 via a support shaft 15. The support shaft 15 includes the chassis 1 and the support shafts 46 and 4.
7 is parallel. Also, holder lock arm 1
Numeral 4 extends the front end side to the front side of the frame 2 and is rotatable so that the front end side comes into contact with and separates from the cassette holder 3. The holder lock arm 14 is provided with the support shaft 1.
The torsion coil spring 38 wound around 5 has its front end side rotationally urged toward the chassis 1 in the direction of arrow V in FIG.

A bent contact portion 20 and a tongue piece 20a are provided on the tip end side of the holder lock arm 14. The contact portion 20 is formed as a flat portion facing the front side of the frame 2. The tongue piece 20a is provided so as to project from the upper end of the contact part 10 toward the front side of the frame 2. The central portion of the holder lock arm 14 is a pressed portion 20b that is curved so as to bulge toward the chassis 1 side.

When the cassette holder 2 is at the cassette insertion / removal position, the holder lock arm 14 is provided with the contact portion 20 and the tongue piece portion 20a at substantially the center of the second support shaft 47.
Are pressed against each other by the urging force of the torsion coil spring 38. At this time, even if it is attempted to move the cassette holder 3 to the rear side of the frame 2, the movement of the second support shaft 47 to the rear side is prevented from the contact portion 20, so that the cassette holder 3 is moved to the rear side. Will not be moved. That is, when the first or second tape cassette 301, 302 has not been inserted into the cassette holder 3 to a predetermined position, the first or second tape cassette 301, 30
The rearward movement of the cassette holder 3 is restricted by the frictional force between the cassette holder 3 and the cassette holder 3.

Then, the first or second cassette holder 3
When the tape cassettes 301 and 302 are inserted from the front side and inserted to a predetermined position, the front ends of the first or second tape cassettes 301 and 302 are
Abuts against the pressed portion 20b. The front ends of the first or second tape cassettes 301 and 302 twist the holder lock arm 14 against the urging force of the coil spring 38 and move in the direction of the arrow W in FIG. Rotate. Then, as shown in FIG.
The contact of the cassette holder 3 with the second support shaft 47 is released, and the cassette holder 3 can be moved rearward in the direction of arrow X in FIG.

In this recording and / or reproducing apparatus,
At this time, as described later, the rotation of the loading motor 36 is started under the control of the control device, and the operation of moving the cassette holder 3 to the rear side is started. Also,
When the cassette holder 3 is moved from the rear side to the front side, when the cassette holder 3 is moved to the cassette insertion / removal position, the holder lock arm 14 is pressed by the biasing force of the torsion coil spring 38 and The tongue piece 20a returns to the initial position where the tongue piece 20a contacts the second support shaft 47.

[3] Lid Opening / Closing Mechanism (FIGS. 1, 6 to 10) The recording and / or reproducing apparatus according to the present invention is shown in FIGS.
As shown in FIG. 3, a lid 4 is provided for opening and closing a cassette insertion opening provided on the front side of the frame 2 in which the first or second tape cassette 301 or 302 is inserted into the cassette holder 3. The lid 4 has both sides 12 and 1 of the frame 2 via lid support arms 64 and 65 on both sides.
Supported between three. Each lid support arm 64, 65
Is mounted so as to protrude sideways from the back side of the lid 4. That is, the one lid support arm 65 is rotatably supported by the one side plate 13 at a substantially central portion via the support shaft. The other lid support arm 64 is rotatably supported by the other side plate 12 via a support shaft 82 at a substantially central portion. Therefore, the lid 4
Is rotatably supported with respect to the front side portion of the frame 2 so as to move in the up and down directions in the directions of arrows K and L in FIG.

As shown in FIG. 6, each of the lid support arms 64 and 65 has an arc-shaped rotation restricting slit 79 centered on the support shaft 82. The rotation range is regulated by inserting the rotation regulation pins 80 planted on 12 and 13. Further, between the rotation regulating pin 80 and the urging pin 81 erected near the support shaft 82 on each of the lid supporting arms 64 and 65, a lid urging spring bent in a ring shape. 68 is stretched. The lid biasing spring 68 is bent most when the lid 4 is rotated to a substantially center position of a rotatable range regulated by the rotation regulating pin 80. That is, the lid biasing spring 68
Is selectively moved in a direction in which the lid 4 is separated from the center rotation position, that is, in one of a rotation direction in which the front portion of the frame 2 is closed and a position in which the front portion of the frame 2 is opened. It is energizing. In addition, each lid support arm 6
4 and 65, an arc-shaped gear portion 6 centered on a support shaft 82 is provided.
9 are provided. The gear portion 69 controls the opening / closing speed of the lid 4 by meshing a gear of a damper mechanism (not shown).

A link mechanism is provided on each of the lid supporting arms 64 and 65 via a connecting shaft 83 on the other end opposite to one end supporting the lid 4 via a support shaft 82. The lid operation arms 65, 65 that are configured are rotatably mounted. The lid operation arms 65, 65 have one end supported by the other end of the lid support arms 64, 65, and the other end extended to the rear side of the frame 2. On the other end of the lid operation arms 65, 65 located behind the frame 2, elongated holes 67, 67 are provided along the longitudinal direction of the lid operation arms 65, 65. These long holes 67,
A pair of lid operation members 70, 70 that constitute a link mechanism together with the lid operation arms 65, 65 are engaged with the 67. The pair of lid operation members 70, 70 are rotatably supported corresponding to the side plates 12, 13 of the frame 2, respectively.

The lid operating members 70, 70 are substantially fan-shaped plate-like members, and are erected on the side plates 12, 13 in support holes 73 provided in a lower portion corresponding to the shape of the fan. Support shaft 7
1 is inserted so as to be rotatably supported. The lid operation members 70, 70 are provided with operation pins 75 on a fan-shaped outer peripheral portion. The operation pin 75 is engaged with a long hole 67 of the cover operation arm 65.

One end of each of the lid operating arms 65, 65;
Tension coil springs 66, 66 are stretched between the lid operation members 70, 70, respectively. One end of the tension coil spring 66 is locked by a spring locking portion 84 provided near the connecting shaft 83 of the lid operating arm 65, and the other end is positioned near the operating pin 75 of the lid operating member 70. Are locked by a spring locking portion 85 provided on the front side. Therefore, each of the lid waterfall operation members 70, 70 presses the operation pin 75 against the edge of the long hole 67 on the connection shaft 83 side by the urging force of the tension coil springs 66, 66. That is, when the lid 4 is manually opened and closed, the lid operation members 70 and 70 are rotated via the lid operation arms 65 and 65 as shown in FIGS. 6 and 9.

The lid operating members 70, 70 are provided with lid operating recesses 76 corresponding to the vertical portions of the second support slits 22, 24. The lid operation concave portion 76 is
As shown in FIG. 6, when the lid 4 is rotated to the position where the cassette insertion opening is opened and the cassette holder 3 is not moved to the cassette mounting position, the second support slits 22 and 2 are moved.
4 overlaps the upper part of the vertical part. As shown in FIG. 9, when the lid 4 is rotated to the position where the cassette insertion opening is closed, the lid
It overlaps the lower end of the vertical portions 2, 24.

The lid operation members 70, 70 are provided with arc-shaped rotation restricting slits 74 centered on the support holes 73. Each side plate 1 is provided in the rotation regulating slit 74.
The rotation regulating pins 72 implanted in the members 2 and 13 are inserted to regulate the rotation range of the lid operation members 70 and 70.

When the loading plates 5 and 6 are moved rearward while the lid 4 is rotated to the position where the cassette insertion opening is opened and the cassette holder 3 is not moved to the cassette mounting position, the lid is rotated. The second holder support pins 41, 4 for moving the vertical portions of the second support slits 22, 24 downward into the lid operation recesses 76 of the operation members 70, 70.
1 enters. When the cassette holder 3 is moved to the cassette mounting position, as shown in FIG. 7, each of the second holder support pins 41 moves in the direction of arrow E in FIG. , 24 to the lower end of the vertical portion, and the cover operating members 70, 70 are turned in the direction of arrow G in FIG. Be moved. The rotation of the lid operation members 70, 70 causes the lid operation arm 6
7 are moved to the rear side in the direction of arrow I in FIG. 7 to rotate the cover support arms 64 and 65 in the direction of arrow K in FIG. 7 to rotate the cover 4 to the position where the cassette insertion slot is closed. Move.

As described above, when the cassette holder 3 is moved to the cassette mounting position and the lid 4 closes the cassette insertion slot, the lid 4 is manually opened to open the cassette insertion slot in the direction of arrow L in FIG. Even if it is turned in the direction
As shown in FIG. 8, the rotation of the lid operation members 70, 70 is regulated by the entry of the second holder support pins 41, 41 into the lid operation recesses 76. For this reason, the lid operating arms 65, 65 move the elongated holes 67, 67 with respect to the operating pins 75, 75, and extend the tension coil springs 66, 66, while moving the front side in the direction of arrow J in FIG. Moved to When the manual operation on the lid 4 is released, the lid 4 returns the lid operation arms 65, 65 to the rear side in the direction of arrow I in FIG. 8 by the urging forces of the tension coil springs 66, 66. As a result, the cassette is rotated in the direction of arrow K in FIG.

In the recording and / or reproducing apparatus, as shown in FIG. 9, the lid 4 closes the cassette insertion slot by manual operation in a state where the cassette holder 3 is not moved to the cassette mounting position. 9 is turned in the direction of arrow K,
Thereafter, the cassette holder 3 may be moved to the cassette mounting position. At this time, each second holder support pin 4
1, 41 elastically deforms each lid operation member 70, 70 outward in the direction of arrow M in FIG.
And 76 are engaged. At this time, each second holder support pin 4
As shown in FIG. 10, the upper end portions of the lid operating members 70, 70 facing the first, 41 are tapered portions 86 whose upper sides are opened outward, so that each second holder is formed. The elastic deformation of the lid operating members 70, 70 by the support pins 41, 41 can be easily performed.

When the lid 4 is rotated to the position where the cassette insertion opening is closed and the cassette holder 3 is moved to the cassette mounting position, when the loading plates 5 and 6 are moved forward, Each of the second holder support pins 41, 41 engaged with the lid operation slits 74 of the lid operation members 70, 70 connects the vertical portions of the second support slits 22, 24 in the direction of arrow F in FIG. Move upward. At this time, each of the second holder support pins 41, 41 rotates the lid operation members 70, 70 in the direction of arrow H in FIG. 7, in which the lid operation slit 76 is on the upper side. The rotation of the lid operation members 70, 70 causes the lid operation arms 65, 6 to move.
5 is moved forward in the direction of arrow J in FIG. 7 to rotate the lid support arms 64 and 65 in the direction of arrow L in FIG.
As shown in (2), the lid 4 is rotated to a position where the cassette insertion opening is closed.

[4] Cassette Holder (FIGS. 2, 11 to 18, 21 to 24) The cassette holder 3 has first and second support shafts as shown in FIGS. A pair of first and second connection support members 48, 49, 52, 53 serving as pressing members for connecting between 46, 47 are provided. These first and second connection support members 48, 49, 5
Reference numerals 2 and 53 are made of a material having a slight elasticity such as a synthetic resin. The first connection support members 48 and 49 are disposed at the center of each of the support shafts 46 and 47 and are arranged in parallel with each other. These first continuous support members 48, 4
Reference numeral 9 denotes a rod-shaped member, which supports the support shafts 46 and 47 by penetrating through holes at both ends. The second connecting support members 52 and 53 are connected to the first connecting support members 48 and 4 respectively.
9 and are arranged in parallel with each other.
The second continuous support members 52 and 53 are rod-shaped members, and each of the support shafts 46 and 53 is provided in a concave portion on the upper surface at both ends.
47 are engaged and supported.

Then, each of the first connection support members 48, 49
A pair of erroneous insertion prevention arms 50 and 51 are arranged outside the first connecting support members 48 and 49 so as to sandwich the first connecting support members 48 and 49. These erroneous insertion prevention arms 50 and 51 are rotatably supported at the base end side by the first support shaft 46 and have the front end side directed to the second support shaft 47 side. These erroneous insertion prevention arms 50 and 51 are connected to the first support shaft 8.
A pair of torsion coil springs 87, 8 wound around 7, 88
8, each tip is urged to rotate in a direction in which the tip side approaches the bottom plate 43. These erroneous insertion prevention arms 50,
Reference numeral 51 denotes locking projections 89, 91 provided on the inner side edge, and locking projections 89, 91 provided on the outer side edge of each of the first connection supporting members 48, 49. 90,9
2 is positioned at the initial position.

The erroneous insertion preventing arms 50 and 51 are provided with step portions 50a and 51a on the lower surface facing the bottom plate 43, and the first or second tape cassette 301 or 302 is turned over with respect to the cassette holder 3. That is, when the bottom portion is inserted upward, the step portions 50a, 5
1a is abutted to prevent insertion. Note that the first and second
The upper ends of the front surfaces of the cassette halves 303 and 309, that is, the upper ends of the lids 316 are shown in FIGS.
As shown in FIG. 7, a tapered portion 316b for turning the erroneous insertion prevention arms 50 and 51 upward is provided.

The first support shaft 46 has a second
A pair of cassette guide members 54 and 55 are provided at positions outside the connection support members 52 and 52. The cassette guide members 54 and 55 are formed in a tongue-like shape so as to be bilaterally symmetrical through a central portion of the first support shaft 46 by synthetic resin or the like.
Is rotatably supported by passing through the support shaft 46. As shown in FIG. 21, one cassette guide member 54 is positioned at an initial position inclined by the guide member operation arm 56 attached to the second support shaft 47 so that the leading end side faces the front end of the bottom plate 43. Have been. The other cassette guide member 55 has the same configuration as the one cassette guide member 54, and is positioned at the initial position by the guide member operation arm 58. The distal ends of the cassette guide members 54 and 55 are spaced from each other toward the front of the cassette holder 3, that is, toward the side where the first or second tape cassette 301 or 302 is inserted. The tapered shape is formed so as to gradually expand. As shown in FIGS. 11 and 12, a space S corresponding to the width of the first cassette half 303 is provided between the cassette guide members 54 and 55.

The guide member operating arm 56 is rotatably supported by inserting a second support shaft 47 through a through hole 56a on the base end side, and has a cassette guide member 54 on the distal end side.
Of the cassette holder 3 toward the outside. An operation shaft 56a is provided on the distal end side of the guide member operation arm 56 so as to protrude toward the side. Operation shaft 56a
Is inserted through an operated slit 54a formed on the side of the cassette guide member 54. Operated slit 54
a is formed over the longitudinal direction of the cassette guide member 54. That is, the guide member operation arm 56 is
When the distal end is rotated about the second support shaft 47 in a direction away from the bottom plate 53, the operating shaft 56a is moved in the operated slit 54a toward the proximal end of the cassette guide member 54 as shown in FIG. And the cassette guide member 54 is rotated in a direction in which the leading end side is separated from the bottom plate 43. Similarly to the one cassette guide member 54, the other cassette guide member 55 is rotated by the guide member operation arm 58 as described above.

Then, each guide member operation arm 56,5
Near cassette 8, cassette size detection arms 57 and 59 are provided. These cassette size detection arms 5
7, 59 are rotatably supported by the second support shaft 47 in the through holes 57a, 59a on the base end side. The cassette size detection arms 57 and 59 have cassette contact portions 57a and 59a at the distal ends, and direct the cassette contact portions 57a and 59a toward the bottom plate 43.

The second support shaft 47 has a pair of screws corresponding to the guide member operation arm 56 and the cassette size detection arm 57 on one side and the guide member operation arm 59 and the cassette size detection arm 58 on the other side. The coil spring 116 is wound and provided. As shown in FIG. 21, the torsion coil springs 116, 116 are locked at one end to a locking piece 3a provided on the side plate 42 of the cassette holder 3, and at an intermediate portion thereof, the cassette size detection arms 57, 5 are provided.
8, and the other end is locked to the guide member operation arms 56 and 57. This torsion coil spring 116 biases the cassette size detecting arm 57 in the direction of arrow α in FIGS. 21 and 22 in which the cassette abutting portion 57 a is swung toward the front side of the cassette holder 3 by the halfway portion. I have. The cassette size detection arm 57 is positioned at the initial position by restricting the rotational biasing direction of the torsion coil spring 116 by a restriction member (not shown). Further, the torsion coil spring 116 is connected to the cassette size detection arm 57 and the guide member operation arm 56.
Are biased in a direction to separate them from each other. The cassette size detection arm 57 and the guide member operation arm 56 are regulated by a regulating member (not shown) so that the rotation angle about the second support shaft 47 does not exceed a predetermined angle.

The bottom plate 43 of the cassette holder 3 has
As shown in FIG. 12, a pair of guide protrusions 93 and 94 and a pair of positioning protrusions 95 and 96 are provided. A pair of guide ridges 93 and 94 are attached to each tape cassette 301,
They are provided in parallel with each other so as to be symmetrical left and right along the insertion direction of 302. The front side portions of the guide ridges 93 and 94 are tapered so that the interval between them gradually increases toward the front. The positioning projections 95 and 96 are provided on the rear edge of the bottom plate 43 so as to protrude more toward the center of the bottom plate 43 than the guide protrusions 95 and 96.

When the first tape cassette 301 is inserted into the cassette holder 3, the cassette guide members 54, 55
And is guided by the guide ridges 93 and 94 and inserted into the center on the bottom plate 43. The first tape cassette 301 is
The front end of the first cassette half 303 is inserted to a position where it comes into contact with the positioning projections 95 and 96.

When the second tape cassette 303 is inserted into the cassette holder 3, each of the guide grooves 317, 31
8 is inserted while engaging the respective guide projections 93 and 94. At this time, as shown in FIG. 23, the cassette guide members 54 and 55 are rotated in a direction away from the bottom plate 43, and are substantially flush with the support shafts 46 and 47. That is, the second cassette half 309 includes the cassette abutting portions 57 a, 5 of the cassette size detecting arms 57, 59.
9a, and the cassette size detecting arms 5 are moved so that these cassette contact portions 57a, 59a are moved rearward against the urging forces of the torsion coil springs 116, 116.
7, 59 is rotated. Then, as shown in FIG. 23, the respective guide member operation arms 56 and 58 have their distal ends on the bottom plate 43 by the elastic force of the torsion coil springs 116 and 116.
The cassette guide members 54 and 55 are rotated in a direction in which the leading ends are separated from the bottom plate 43. Then, the second tape cassette 303
Without contacting each cassette guide member 54, 55,
As shown in FIG. 24, the front end of the second cassette half 309 is inserted until it comes into contact with the positioning projections 95 and 96.

At the front end of the bottom plate 43 of the cassette holder 3, a pair of reel shaft engaging holes 304a, 305a of the first or second tape cassette 301, 302 inserted into the cassette holder 3 as shown in FIG. , 310a, 311
As shown in FIGS. 16 and 17, a pair of notch portions 44 and 45 for the reel shaft for making the “a” face the chassis 1 side.
Is provided. Also, the first end of the bottom plate 43 is
Alternatively, a tape notch 97 is provided to allow the magnetic tape drawer provided on the bottom front side of the second tape cassettes 301 and 302 to face the chassis 1.

As shown in FIG. 15, the bottom plate 43 of the cassette holder 3 is provided with first and second cassette insertion detecting levers 101 and 105. The cassette insertion detection levers 101 and 105 are rotatably supported on the bottom plate 43 on the side facing the chassis 1 via rotation shafts 99 and 103. First cassette insertion detection lever 1
Numeral 01 is positioned by a coil spring (not shown) at an initial position where the abutted portion 102 on one end side has entered the cutout portion 97 for tape. The second cassette insertion detection lever 105 is also positioned by an unillustrated coil spring at an initial position where the abutted portion 106 on one end side has entered the tape cutout 97. On the other end side of the first cassette insertion detection lever 101, a first pivoted operation lever 100 is provided. The distal end side of the first pivoted operation lever 100 is connected to one side plate 1 of the frame 2.
Two. The other end of the second cassette insertion detection lever 105 is provided with a second pivoted operation lever 10.
4 are provided. The distal end side of the second pivoted operation lever 104 is close to the other side plate 13 of the frame 2.

Further, the first cassette insertion detecting lever 10
One end of a link 98 is connected to 1 via a support shaft 110. The other end of the link 98 is connected to one end of a first detection transmission arm 107 via a support shaft 109. The first detection transmission arm 107 is
The other end is projected rearward of the bottom plate 43. A second detection transmission lever 108 is attached to the second cassette insertion detection lever 105. The second transmission detection lever 108 has a proximal end supported by the second cassette insertion detection lever 105 and a distal end protruding rearward of the bottom plate 43. The first and second detection transmission levers 107 and 108 have first and second detection transmission parts 111 and 112 in the vicinity of the ends protruding rearward of the bottom plate 43, respectively. These first and second detection transmitting portions 111 and 112 overlap each other when the first or second tape cassette 301 or 302 is not inserted into the cassette holder 3. A photo sensor 113 supported by the cassette holder 3 is provided at a portion where the first and second detection transmitting portions 111 and 112 overlap each other.
Is facing.

When the first or second tape cassette 301, 302 is inserted into the cassette holder 3, as shown in FIG. 16 and FIG.
105 is rotated in the directions indicated by arrows N and O in FIGS. 16 and 17 in which the abutted portions 102 and 106 are pressed by the first or first cassette halves 303 and 309 and are on the rear side of the bottom plate 43. The detection transmission levers 107 and 108 are rotated to separate the detected parts 111 and 112 from each other, and the detected parts 111 and 112 are connected to the photo sensor 113.
Evacuation from the detection range. The detection signal detected by the photo sensor 113 is supplied to the control device to drive the loading motor 36.

Further, each cassette insertion detecting lever 101,
105 is a first or second tape cassette 301, 30
When the cassette holder 3 in which the cassette 2 is inserted is moved in the direction of arrow T in FIG. 18 from the rear side of the frame 2 to the front side, the distal end portions of the operated levers 100 and 104 are moved to the side plates 12 of the frame 2. , 13 return to the initial position by contacting the contact protrusions 114, 115 projecting inward from each other and facing the arrow Q direction and arrow R in FIG.
It is forcibly rotated in the direction. The rotation of the cassette insertion detection arms 101 and 105 causes each of the abutted portions 10 to move.
2, 106 are the first or second cassette halves 303, 3
The first or second tape cassette 301 or 302 is pushed in the direction of the arrow U in FIG.

The first or second tape cassette 301 or 302 inserted in the cassette holder 3 is driven by the rotation of the loading motor 36 so that the cassette holder 3
And is mounted on the cassette mounting portion on the chassis 1. At this time, the first or second tape cassette 30
1, 302 are reel shaft engaging holes 304a, 405a, 3
Reel shafts 8 and 9 are engaged with 10a and 311a, and are brought into contact with a positioning portion (not shown) provided on the chassis 1 to perform positioning in the height direction.

As shown in FIG. 13, the first tape cassette 301 mounted on the cassette mounting portion has the first connecting support members 48 and 49 and the second connecting support members 52 and 52, respectively.
53 contacts. And, each support shaft 46, 47
Are pressed and supported at both ends by shaft pressing leaf springs 61 and 63, and each of the connecting support members 48, 49, 5
The first cassette half 303 is pressed and supported via the second and the third cassette 53. In addition, since the support shafts 46 and 47 slightly warp, the first cassette half 303 has four ends near the side edges of the upper surface of the connection support members 48, 49, 52, and 53, respectively. Abut. As described above, since the first cassette half 303 is pressed near the side edge of the upper surface, the first cassette half 303 is mounted on the cassette mounting portion without causing distortion.

As shown in FIG. 14, each of the first connection support members 48 and 49 and each of the second connection support members 5 are mounted on the second tape cassette 302 mounted on the cassette mounting portion.
2 and 53 and the vicinity of both ends of the support shafts 46 and 47 are in contact with each other. At this time, the second connection support members 52, 53
Near the front end of each reel holding member 312, 3
14 is in contact with the upper surface. At this time, the reel holding members 312 and 314 are connected to the respective reel holding coil springs 313 and 314.
The tape reels 310 and 311 receive the urging force of 315.
To the respective reel shafts 8 and 9. Further, since the respective support shafts 46 and 47 slightly warp, the first connection support members 48 and 49 hardly abut on the second cassette half 309, and the respective ends of the respective support shafts 46 and 47 are not contacted. The vicinity of the portion contacts four places near the both side edges of the upper surface portion. As described above, since the second cassette half 309 is pressed near the side edge of the upper surface portion, the second cassette half 309 is mounted on the cassette mounting portion without causing distortion.

The pressing force of each of the shaft pressing leaf springs 61, 63 on each of the support shafts 46, 47 is determined by the position of each of the set screws 60, 62.
It can be adjusted by displacing it from the center of 1, 63. That is, when the position of each set screw 60, 62 is set to the rear of each shaft holding plate spring 61, 63, the pressing force of the first support shaft 46 on the first or second cassette half 303, 309 becomes strong, The pressing force of the second support shaft 47 on the first or second cassette half 303, 309 is weakened. Conversely, the position of each set screw 60, 62 is
1 and 63, the first or second cassette half 30 by the first support shaft 46.
3, 309 becomes weak, and the first or second cassette half 303,
The pressing force on 309 increases. These can be adjusted in accordance with the position of the positioning portion that comes into contact with each of the cassette halves 303 and 309 on the chassis 1.

[0070]

As described above, the recording and / or recording according to the present invention is performed.
Or, in the reproducing device, the opening and closing operation of the lid is performed in association with the movement of the cassette holder, and the opening and closing operation of the lid can be performed by manual operation without relating to the movement of the cassette holder. The tape cassette can be quickly loaded and unloaded by manually rotating the lid. In particular, since the lid is rotated outside the cassette insertion slot, the lid can be easily rotated by manual operation. Further, the lid is held at the open position and the closed position by receiving the urging force of the urging member, so that the state in which the cassette insertion port is opened and closed can be reliably held, and the lid is opened with the cassette insertion port opened. The tape cassette can be easily loaded and unloaded without being obstructed.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a recording and / or reproducing apparatus according to the present invention.

FIG. 2 is a perspective view showing a cassette holder of the recording and / or reproducing apparatus.

FIG. 3 is a side view of the recording and / or reproducing apparatus in an unloading state.

FIG. 4 is a side view showing a state where the recording and / or reproducing apparatus is in the middle of loading.

FIG. 5 is a side view showing a completed loading state of the recording and / or reproducing apparatus.

FIG. 6 is a side view showing a state where a cassette insertion opening is opened during loading of the recording and / or reproducing apparatus.

FIG. 7 is a side view showing a state where loading of the recording and / or reproducing apparatus is completed and a cassette insertion port is closed.

FIG. 8 is a side view showing a state where loading of a main part of the recording and / or reproducing apparatus is completed and a cassette insertion slot is opened.

FIG. 9 is a side view showing a state where a cassette insertion port is closed during loading of a main part of the recording and / or reproducing apparatus.

FIG. 10 is a perspective view of a main part showing a state where a cassette insertion slot is closed during loading of a main part of the recording and / or reproducing apparatus.

FIG. 11 is a plan view showing a cassette holder of the recording and / or reproducing apparatus.

FIG. 12 is a front view of the cassette holder.

FIG. 13 is a plan view showing a state where the first tape cassette is inserted into the cassette holder.

FIG. 14 is a plan view showing a state where a second tape cassette is inserted into a cassette holder.

FIG. 15 is a bottom view of the cassette holder.

FIG. 16 is a bottom view showing a state where the first tape cassette is inserted into the cassette holder.

FIG. 17 is a bottom view showing a state where the second tape cassette is inserted into the cassette holder.

FIG. 18 is a bottom view showing a state in which the second tape cassette mounted on the cassette holder is taken out.

FIG. 19 is a longitudinal sectional view showing a state before a tape cassette is inserted into a cassette holder.

FIG. 20 is a longitudinal sectional view showing a state where the tape cassette is inserted into the cassette holder.

FIG. 21 is a perspective view of a main part showing a cassette guide member provided in the cassette holder.

FIG. 22 is a longitudinal sectional view showing the cassette guide member.

FIG. 23 is a longitudinal sectional view showing a state where the tape guide member is inserted into the cassette guide member.

FIG. 24 is a longitudinal sectional view showing a state in which the insertion of the tape cassette into the cassette guide member is completed.

FIG. 25 is a perspective view showing a first tape cassette with a part thereof cut away.

FIG. 26 is a perspective view showing a second tape cassette with a part thereof cut away.

[Explanation of symbols]

1 chassis, 2 frame, 3 cassette holder, 4 lid, 14 holder lock arm, 48,
49 first connection support member, 52, 53 second connection support member, 54, 55 cassette guide member, 5
6, 58 guide member operation arm, 57, 59 cassette size detection arm, 65, 65 lid operation arm, 70, 70 lid operation member, 301 first tape cassette, 302 second tape cassette.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G11B 15/675 101

Claims (1)

(57) [Claims] 1. A tape cassette is inserted, and extends between an insertion / removal position for holding the tape cassette and enabling insertion / removal of the tape cassette and a cassette mounting position for mounting the tape cassette in a cassette mounting portion. a cassette holder which is movement operation, a cassette insertion opening opposite to said cassette holder, a lid pivotally supported on the apparatus body so as to open and close in position outside the cassette insertion slot, the upper Symbol Open the cassette slot before inserting the tape cassette.
Release the lid and release the tape cover.
After inserting the set, close the cassette slot
An urging member for urging the lid, rotating the lid in a direction to close the cassette insertion opening in association with the movement of the cassette holder toward the cassette mounting position, and inserting and removing the cassette holder; A recording and / or reproducing apparatus having a link mechanism for rotating the lid in a direction to open the cassette insertion slot in association with movement in a position direction.