JP2595157B2 - Recording and 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 an analog cassette having, for example, a head insertion opening for recording and reproducing analog signals, and an outer shape substantially the same as that of the analog cassette. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus capable of coping with a cassette of a different shape so as to be compatible with a digital cassette whose portion is covered by a movable slider and recorded and reproduced by digital signals.

[0002]

2. Description of the Related Art Conventionally, a cassette tape recorder, which is a recording / reproducing apparatus using a compact cassette for analog signals (hereinafter, referred to as a C cassette), has been widely used. However, this cassette tape recorder uses C
Due to the internal structure of the cassette, the material of the magnetic tape, and the fact that the recording / reproducing signal is analog, the limit has been reached in terms of improving sound quality.

Therefore, as a recording / reproducing apparatus having good sound quality, a digital audio tape recorder having a rotary head, that is, an R-DAT has recently been developed.
The R-DAT employs a helical scan by a rotary head and records and reproduces data on a digital cassette tape by digital signals.

[0004] With such a configuration, the R-DAT is far superior to the sound quality of the cassette tape recorder for the C cassette described above, but on the other hand, the cassette tape for the R-DAT is expensive and the conventional R-DAT is expensive. At present, C cassettes are not widely used as expected because of their ease of use and the other various points.

In view of the above, a recording / reproducing apparatus has been proposed which uses a cassette tape having substantially the same shape as a conventional C cassette to record / reproduce by digital signals.
The digital compact cassette for digital signals (hereinafter referred to as D cassette) has almost the same outer dimensions as the C cassette, but measures are taken to improve the running property of the magnetic tape, and the material of the magnetic tape is It is suitable for recording and reproducing digital signals.

Next, conventional C cassettes and D cassettes will be described with reference to FIGS. The longitudinal dimension L ′ and the depth dimension M ′ of the C cassette 100 shown in FIG. 21 are the same design dimensions as the longitudinal dimension L and the depth dimension M of the D cassette 200 shown in FIG. L '= L, M' = M), while
The height dimension N ′ of the C cassette 100 is
N = N ′ + 1 mm with respect to the height dimension N.

As shown in FIG. 21, a head insertion opening 101 is provided on the front surface of the C cassette 100. When the C cassette 100 is mounted, the head insertion opening 101 is not shown. With the magnetic head inserted, C
A magnetic tape 102 as a recording medium stored in a cassette 100 travels while contacting a tape sliding surface, which is a front surface of an inserted magnetic head, to perform recording and reproduction.

The running of the magnetic tape 102 is performed by inserting a known pinch roller into both or one of the pinch roller insertion openings provided on both sides of the head insertion opening 101, and cooperating with a known capstan. By action
The magnetic tape 102 runs.

A known reel base is fitted into reel holes 103 provided symmetrically at the center of the C cassette 100, and the magnetic tape 102 is wound by rotation of the reel base. Each of the reel holes 103 is vertically penetrated.

On the upper and lower surfaces in front of the C cassette 100 (on the side of the head insertion opening 101), protruding surfaces 104 each having a trapezoidal flat surface are formed.
Further, projecting portions 105 are formed at front portions of both side surfaces of the C cassette 100. Conventionally, the protruding portions 105 are provided so that an operator
When the C cassette 100 is attached to and detached from the cassette tape recorder, the C cassette 100 is easily grasped. However, it is rarely used for this purpose at present.

On the other hand, the D-cassette 200 shown in FIG. 22 does not have the protruding surfaces 104 and 104 and the protruding portions 105 and 105 in the C-cassette 100.
Depressions 201, 201 are formed in the portion corresponding to 05,
Further, concave portions 208 are provided at substantially rear portions of both side portions 209 and 210, respectively. D cassette 2
00, the reel hole 103.1 of the C cassette 100
The portion corresponding to 03 is not a through hole, but is a driving concave portion 204 formed only on the lower surface side. The difference between the shapes of the C cassette 100 and the D cassette 200 has been described above. Next, the most different point, that is, the slider in the D cassette 200 will be described.

The C cassette 100 shown in FIG. 21 does not have a slider for opening and closing the opening 101 on the front side thereof, and the magnetic tape 102 in the opening is always exposed. On the other hand, as shown in FIG.
Is provided with a slider 202 made of a thin sheet metal bent in a substantially U-shaped cross section so as to cover the front surface 203, the upper surface 207, and the lower surface thereof so as to be able to reciprocate in the directions of arrows AB. And this slider 202
Is urged in the direction B by a spring (not shown), and the sliding position in the direction B is regulated by a stopper (not shown).

In such a slider 202, a center connecting surface 202a connecting the upper surface side and the lower surface side is set at a position corresponding to a head insertion opening 206 described later.
That is, the head insertion opening 206 is
Is covered, so that the magnetic tape and pads can be protected from the outside.

When the slider 202 moves in the direction of arrow A, as shown in FIG. 23, a hole 202b provided adjacent to the center connecting surface 202a of the slider 202 is formed.
Is moved to a position corresponding to the head insertion opening 206, and the above-described head insertion opening 206 is exposed, the built-in magnetic tape 205 is exposed, and contact with a magnetic head (not shown) is possible. Become. Similarly, the pinch roller insertion opening is exposed, and the pinch roller can be inserted into the D cassette 200.

The D cassette 200 is provided with a slider opening guide recess 207 on the right side of the slider 202, that is, near the upper end in the direction B in order to open the slider 202. The slider opening guide recess 207 is a cutout having a substantially triangular shape, and includes a guide slope 207a recessed in the direction A and AB
The locking slope 207b is substantially perpendicular to the direction.

Such a slider opening guide recess 20
7 is substantially covered by the slider 202 when the slider 202 is returned in the direction B, but is not completely covered, and the guide slope 207a is slightly exposed. Therefore, when an engaging member such as a thin pin is inserted into the exposed guide slope 207a and the engaging member is moved in the direction A, the slider 202 moves, and the head inserting Opening 2
06 is exposed and recording and reproduction are enabled.

In order to increase the degree of freedom in designing a slider opening / closing mechanism for opening / closing the slider 202, a slider opening / guiding recess is provided near the slider opening / guiding recess 207 near the lower end in the direction B of the slider 202. 211 is formed in the same manner, and the slider 2
It is possible to provide a mechanism for opening and closing 02.

Next, the concave portion 20 in the D cassette 200
1. First, the D cassette 20 will be described.
The recesses 208 on both side surfaces of the cassette tape recorder 0 are generally referred to as changer grips, and are selected from a plurality of D cassettes 200 stored in the cassette housing portion of the cassette tape recorder. This is for supporting a cassette tape recorder having a so-called changer function, in which the D.200 is transported to a recordable / reproducible position to perform recording / reproduction on the D cassette 200. In this case, the recesses 208
It is used as a gripping hole when transporting the cassette 200 to the recording / reproducing position. On the other hand, the recesses 201 are generally referred to as storage grips, and are holding holes for transporting the D cassette 200 to a recordable / reproducible position.

Next, a method of arranging the D cassette 200 at the recording / reproducing position using the concave portions 201 will be described. As shown in FIG.
Is a state in which it is inserted halfway in the direction E in the storage portion of the cassette holder (not shown). In the direction E of the D cassette 200, there is provided a moving plate 402 which can reciprocate in the direction EF. The moving plate 402 is urged in the direction F, and the movement in the direction F is restricted by the stopper 407a. Along with
When the plunger 407 is energized, it moves in the E direction.

A pair of grips 403 and 404 are rotatable on both sides of the movable plate 402, and are urged in the counterclockwise and clockwise directions by springs, respectively. The rotation is restricted in the clockwise direction. Further, a slider opening / closing lever 401 is provided on the movable plate 402 so as to be rotatable by being urged clockwise and set at a predetermined position by a stopper (not shown). Further, a head plate 405 on which a magnetic head 406 is mounted is installed so as to be able to reciprocate in the EF direction so as to move independently of the movement of the moving plate 402.

In this state, the D cassette 200
Is further inserted, the tip of the slider opening / closing lever 401 fits into the concave portion 207, and the slider opening / closing lever 401 is moved to the slider 2 as shown in FIG.
02 is moved in the direction A to expose the head insertion opening as described above.

On the other hand, the D cassette 200 abuts on the grips 403 and 404 as it moves, and rotates the grips 403 and 404 against the respective biasing forces. Are engaged by fitting into the recesses 201, 201, respectively. At this time, the detection unit (not shown) detects that the D cassette 200 has been inserted into a predetermined position.

The plunger 407 is detected by the detection signal.
Is actuated, and the moving plate 402 moves in the E direction, so that the D cassette 2 engaged with each of the grips 403 and 404 is operated.
00 moves in the E direction, and as shown in FIG.
The cassette 200 approaches the magnetic head 406 and becomes in a state where recording and reproduction can be performed. After that, when a mode switching operation for recording or reproduction is performed by the operator, FIG.
As shown in (d), the driving means (not shown) moves the head plate 405 in the F direction, and
Is inserted into the head insertion opening, comes into contact with a magnetic tape (not shown), and recording and reproduction are performed. The moving plate 40
2 and the head plate 405 are moved simultaneously,
24 (b) to FIG. 24 without passing through the state of FIG.
The state of (d) can also be set.

However, using the above conventional method, D
When a cassette tape recorder capable of recording and reproducing the C cassette 100 in addition to the cassette 200 is to be constructed, the C cassette 100 does not have the concave portions 201 to be gripped by the grips 403 and 404. , C cassette 100 from the state of FIG. 24 (b) to the state of FIG. 24 (c). Therefore, the above method cannot be applied to the C cassette 100.

In the above conventional method, the D cassette 2
00, the head insertion opening 206 and the magnetic head 406 are arranged to face each other.
Are moved on the same plane by their respective driving means to bring them into a recording / reproducing state, so that the mechanism becomes complicated.

Further, in order to perform the above operation, means for detecting a state in which the D-cassette 200 is held at the recording / reproduction standby position, and the moving plate 4 based on the detecting operation of this means.
02, ie, the plunger 407 described above,
Alternatively, a means having a motor for performing the same operation and a means for driving the magnetic head 406 having the same configuration as the motor are required, which increases the cost.

Further, the above-described structure is, for example, the plunger 4
07, the moving plate 402 is moved in the E direction, and when the D cassette 200 is held at the recordable / reproducible position, the plunger 407 is always ON, so that disadvantages such as an increase in power consumption are caused. Have.

Next, the C cassette 100 and the D cassette 20
0, ie, a conventional cassette tape recorder which is a conventional recording / reproducing apparatus corresponding to the C cassette 100 and the D cassette 200, for example, as shown in FIGS.
7, such a cassette tape recorder is provided with a cassette holder 30 as shown in FIG.
The cassette holder 302 is provided with a fulcrum shaft 301a provided on a cabinet 301 which is a casing of the apparatus.
And can be opened and closed between an open state shown in FIG. 25 and a closed state shown in FIG. The cassette holder 302 is formed with a cassette storage portion 302a having a size slightly larger than the length L or L 'of the C or D cassette 100 or 200.
2a, C and D cassettes 100 and 200
It is detachable in the -F direction.

A cassette holding spring 302b for pressing the inserted C and D cassettes 100 and 200 in the height direction is installed in the cassette storage portion 302a. The inserted C and D cassettes 100 and 200 are ,
Pressed by the cassette pressing spring 302b, the cassette pressing spring 302b comes into pressure contact with the bottom wall of the cassette housing portion 302a, and the stopper 302
The movement in the E direction from the predetermined position is further restricted by c.

A fulcrum shaft tooth portion 302d is provided below the rotation fulcrum portion of the cassette holder 302, and the fulcrum shaft tooth portion 302d meshes with a tooth portion of a damper 303 installed in the cabinet 301. Accordingly, when the cassette holder 302 is about to be opened by the urging force of a spring (not shown), the cassette holder 302 is slowly rotated by the damper effect due to the viscous resistance of the dam bar 303, and the rotation is high-quality.

A tape running member (not shown) such as a motor and a flywheel is mounted on a main chassis 304 installed below the cassette holder 302, and cassette receivers 304a and 304b are installed. The cassette receiver 304a is a C and D cassette 100/2 that rotates together with the cassette holder 302.
The operation of guiding 00 is also used.

Further, a reel base 306 is provided at the center of the main chassis 304, and a cassette holding spring 305 is provided at the other end opposite to the fulcrum shaft 301a, while the fulcrum of the main chassis 304 is provided. Axis 301
On the side a, a head plate 307 on which the magnetic head 308 is mounted, a slider opening / closing lever 310, an A plunger 309 for moving the slider opening / closing lever 310 in the AB direction shown in FIG. 27, and a slider opening / closing lever 310
A B plunger (not shown) for moving in the DC direction is provided.

When recording / reproducing with respect to the C or D cassettes 100 and 200 by the above-mentioned cassette tape recorder, as shown in FIG.
2 is opened and C or D is stored in the cassette storage portion 302a.
After inserting the cassettes 100 and 200, the cassette holder 302 is closed by manual operation as shown in FIG. At this time, the cassette holder 302 is locked by locking means (not shown), and the C or D cassettes 100 and 200 are positioned in the height direction by contacting the cassette receivers 304a and 304b, and are pressed by the cassette holding spring 305. Positioning in the CD direction is achieved by contacting the cassette receiver 304a. Further, the reel base 306 is fitted to the reels of the C or D cassettes 100 and 200, and the recording / reproducing standby state is set.

Thereafter, based on the detection results of the presence or absence of the C or D cassettes 100 and 200 by the detecting means (not shown) and the type of the stored cassette, the cassette
In the case of the cassette 100, the head plate 307 is
To move the magnetic head 308 to the C cassette 100.
Recording and reproduction can be performed by inserting the head into the head insertion opening. On the other hand, in the case of the D cassette 200, the slider 2
02 is not open and is not in a recordable / reproducible state.

When the detection means detects that the D cassette 200 has been inserted, the following slider opening / closing mechanism operates. Note that the detection of the C cassette 100 and the D cassette 200 is performed by the ON / OFF operation of the switch by the portions having different shapes. In this case, detecting the projecting surface 104 of the C cassette 100 means that the projecting surface 104
02 is very difficult because it almost matches the location.
Therefore, the concave portion 201 or the concave portion 2 of the D cassette 200
08 or by detecting the presence or absence of the protrusion 105 of the C cassette 100.

When the cassette is the D cassette 200 on the basis of the detection result of the detection means, the B plunger is operated from the state of FIG. 27A corresponding to FIG.
As shown in FIG. 7B, the slider opening / closing lever 310
And is inserted into the slider opening guide recess 207 of the D cassette 200. Next, the A plunger 309 shown in FIG. 26 operates, and as shown in FIG.
The slider opening / closing lever 310 moves in the direction A, and the slider 202 moves in the direction A by being pushed by the slider opening / closing lever 310.
6 and the opening for pinch roller insertion are exposed. Thereafter, as shown in FIG. 27D, the head plate 307 is moved in the direction D by a driving unit (not shown), and the magnetic head 308 is inserted into the head insertion opening 206, and the recording / reproducing state is established. .

On the other hand, after the recording / reproducing state is completed in the state shown in FIG. 27D, the head plate 307 is returned in the direction C to be in the stop state. In such a state, when the operator performs an ejection operation for removing the D cassette 200, the operation of the A plunger 309 is released based on a detection signal from a unit that detects the operation, and the slider opening / closing lever 310 is released. Is returned to a predetermined position in the direction B by being pulled by a spring (not shown). With this movement, the slider 202 is pulled by a spring (not shown) and moves in the direction B, and the head insertion opening 20 of the D cassette 200 is moved.
6 is closed.

Subsequently, the operation of the B plunger is released,
The slider opening / closing lever 310 is pulled by a spring (not shown) and returns to the position in the C direction. Thereafter, the locking means of the cassette holder 302 is released by the operation force of the eject operation, and the cassette holder 302 is opened,
The D cassette 200 can be taken out.

[0039]

However, in the above-described conventional configuration, when recording / reproducing on / from the D-cassette 200 is performed, the cassette holder 302a of the cassette holder 302 is not used.
The cassette holder 3 with the D cassette 200
02 is closed by rotating the D.02, and the head insertion opening 206 of the D cassette 200 is set to face the magnetic head 308. Then, the slider opening / closing lever 310 operates to move the slider 202, Since the head insertion opening 206 of the cassette 200 is exposed, it takes a long time from when an operator performs an operation for instructing a recording or reproducing operation to when the D cassette 200 actually enters a recording / reproducing state, The response speed is slow.

Further, in the above-described configuration, D is changed from the recording / reproducing state.
When taking out the cassette 200, it is necessary to have a means for outputting as an electric signal that the eject operation for instructing the removal of the cassette has been performed by the operator. Unlock the lock means of the cassette holder 302 until the opening 206 is completely returned to the closed position, or unlock the lock means after a predetermined time elapses after the eject operation is performed. In this case, the response speed from the time when the eject operation is performed to the time when the eject is enabled becomes slow.

In addition, when recording / reproducing on the D cassette 200, the slider 202 of the D cassette 200 is moved by the slider opening / closing lever 310 after closing the cassette holder 302, so that the operating force of the operator is utilized. Therefore, an electric driving means for operating the slider opening / closing lever 310 is required.

In addition to the electric means using the A plunger 309 and the B plunger as described above, a two-stage cam is driven by one motor, and the slider opening / closing lever 310 is moved by the first-stage cam. It is possible to move in the D direction and move in the A direction by the second stage cam, but in any case, the driving means such as the A plunger 309 and the B plunger or the motor is required. This leads to an increase in the cost and size of the device.

In the slider opening / closing mechanism having the above structure, the D cassette 200 is always in the recording / reproducing position.
Since the urging force is provided so as to return to the standby state which is the opposite direction to the storage direction, electric means such as a plunger is installed to hold the D cassette 200 at the recording / reproducing position. Therefore, when the D-cassette 200 is maintained at the recording / reproducing position, it is necessary to always keep the above-mentioned electric means ON, which leads to an increase in power consumption.

Therefore, an object of the present invention is to provide a C cassette 10
0 and D cassette 200 which can handle different kinds of cassettes and has a slider 202.
The object of the present invention is to provide a recording / reproducing apparatus that can quickly open and close the slider 202 even when the 00 is stored, and can use the force of pushing the operator to open and close the slider 202, thereby avoiding an increase in power consumption. .

[0045]

According to a first aspect of the present invention, there is provided a recording / reproducing apparatus including a first recording medium built-in and a first opening for inserting a head formed in a front surface of the recording / reproducing apparatus. A first cassette in which is exposed and a second recording medium built therein, and a second opening for head insertion formed in the front surface portion is
A second cassette, which is openably and closably covered by a slider movable in the longitudinal direction of the front surface portion and has a slider opening guide recess recessed rearward from the front portion adjacent to one end of the slider. On the other hand, in a recording / reproducing apparatus capable of at least one of recording and reproduction, the first cassette or the second cassette is inserted and held,
Further, a cassette holder is provided which moves between a cassette attachable / detachable position for attaching / detaching the first cassette or the second cassette and a record / reproducible position for recording / reproducing the first cassette or the second cassette. When the second cassette is stored in the cassette holder, the second cassette is rotated in accordance with the movement of the second cassette in the storage direction by contacting the slider opening guide concave portion and presses the slider of the second cassette. By moving the slider in the opening direction, when the first cassette is housed in the cassette holder, the slider comes into contact with the surface of the first cassette having the first opening, whereby the first cassette is brought into contact with the first cassette. The slider opening / closing lever, which rotates as the cassette moves in the storage direction, rotates above the cassette holder. And a first biasing means for biasing the slider opening / closing lever, which rotates in contact with the first cassette or the second cassette, in a direction opposite to the rotation direction, is provided. A moving member that moves in contact with the first cassette or the second cassette and moves inward of the cassette holder so as to press a side portion of the first cassette or the second cassette is attached to the moving member. A cam member that rotates in a predetermined direction by contacting the projected portion, and an engaging portion that engages with the projected portion when the first cassette or the second cassette is in the storage completed position is provided on the cam member. It is characterized by having.

According to a second aspect of the present invention, there is provided a recording / reproducing apparatus according to the first aspect of the present invention, wherein the projecting portion slides to rotate the cam member in the predetermined direction. A guide groove to be formed is formed in the cam member,
The engaging portion is a concave portion that is recessed in the discharging direction of the second cassette at a position in the guide groove opposite to the end of the first cassette or the second cassette in the discharging direction, and is opposite to the predetermined direction. A second urging means for urging the cam member to rotate.

According to a third aspect of the present invention, in the recording / reproducing apparatus according to the first aspect, when the second cassette is inserted into the cassette holder upside down, A third lever is provided on the cassette holder so as to be rotatable and has a contact pin inserted into the slider opening guide concave portion, and a third lever for urging the blocking lever in a predetermined rotation direction to set the blocking lever at a predetermined position. A biasing means is provided.

[0048]

According to the first, second and third aspects, when the first cassette is stored in the cassette holder, the slider opening / closing lever contacts the front surface of the first cassette,
It rotates with the movement of the first cassette in the storage direction. On the other hand, when the second cassette is housed in the cassette holder, the slider opening / closing lever is inserted into the slider opening guide recess of the second cassette, and rotates with the movement of the second cassette in the housing direction. To move it in the opening direction.

Therefore, when the second cassette reaches the storage completion position, the slider is opened, the second opening for inserting the head of the second cassette is opened, and the built-in second recording medium is exposed. it can.

When the first cassette or the second cassette is stored in the storage completion position and the slider opening / closing lever is turned to a predetermined position against the urging force of the first urging means, the first cassette Alternatively, when the protrusion of the moving member that presses and holds the side of the second cassette and the engaging portion of the cam member are engaged, the rotation of the slider opening / closing lever in the return direction is restricted.

Thus, the first cassette or the second cassette
When the cassette has reached the storage completion position, the situation where the first cassette or the second cassette is pushed out in the removal direction from the storage completion position by rotation of the slider opening / closing lever in the return direction is avoided. Thereafter, the cassette holder containing the first cassette or the second cassette is moved to a recordable / reproducible position.

As described above, the operation of moving the slider is not performed independently, but is performed simultaneously with the operation of storing the second cassette in the cassette holder, so that the second recording medium in the second cassette provided with the slider can be moved. Even in the case of performing recording / reproduction, it is possible to promptly shift to the recording / reproduction operation as in the case of performing the recording / reproduction of the first recording medium of the first cassette.

Note that the above-described configuration is not simply a replacement of the conventional electrical configuration with a mechanical configuration, but is originally performed as one operation when recording and reproducing the second cassette as described above. Since the operation of storing the second cassette in the cassette holder is used, the operability is not reduced.

According to the configuration of the second aspect, in addition to the operation of the first aspect, the first cassette or the second cassette is housed in the cassette holder, and the cassette holder is re-mounted at the cassette removable position. When the first cassette or the second cassette is lightly pushed in, the projecting portion engaged with the concave portion moves, and the engaged state is released, and the second cassette is released.
The cam member is rotated by the urging means. Therefore, when the protrusion moves into the guide groove, the operation of pushing the first cassette or the second cassette is stopped, and when the pushing is released, the first cassette or the second cassette is loaded with the first urging means. It is pushed back in the removable direction from the storage completion position by the force and returns.

According to the third aspect of the invention, in addition to the operation of the first aspect, when the second cassette is erroneously inserted upside down, the contact pin of the blocking lever is moved by the slider. Since the contact pin is held in contact with the opening guide recess, the contact pin cannot slide on the front surface of the second cassette, so that the rotation of the blocking lever is locked. As a result, the insertion movement of the second cassette is suppressed by the contact pin, so that the operator can recognize the erroneous insertion, and further insertion of the second cassette can be stopped.

[0056]

FIG. 1 shows a first embodiment of the present invention.
18 to FIG. 18 and FIG. 21 to FIG. [First Embodiment] A recording / reproducing apparatus comprises a compact cassette as a first cassette which is recorded and reproduced by using a conventional analog signal shown in FIG. 21 and a digital signal shown in FIGS. 22 and 23. This is a cassette tape recorder that can use a digital cassette as a second cassette to be reproduced. Since each of these cassettes has been described in detail in the conventional example, the description is omitted. Note that the compact cassette is a C cassette,
The digital cassette is referred to as a D cassette, and when both are indicated, they are simply referred to as cassettes.

The cassette tape recorder as described above has a cassette holder 2 for holding a cassette 12, as shown in FIG. This cassette holder 2
Is rotatably connected to the cabinet 1 by a fulcrum shaft 1a, and is urged by a spring 34 in a counterclockwise direction.

The cassette holder 2 is formed with a tooth 2a below the center of rotation, and the tooth 2a is
And meshes with a damper tooth portion 3a of a damper 3 serving as a moving load applying means rotatably supported by the motor. Therefore, as shown in FIG. 3, when the cassette holder 2 performs the opening operation in the counterclockwise direction, a damper effect that opens slowly against the urging force of the spring 34 is obtained.

At the upper part of the cassette holder 2, a holder cover 2g is provided integrally and covers the upper surface 2f of the cassette holder 2 while securing a predetermined space. As shown in FIG. 4, when the cassette holder 2 is opened, the cassette 12 (indicated by a D-cassette 200 in the drawing) is placed at both ends of the cassette holder 2 in the insertion direction of the cassette 12 on the lower surface 2e side. A pair of opposed cassette storage portions 2b, 2b each having a substantially L-shaped cross section are provided so as to be detachably stored in the −F direction.

When the cassette 12 is inserted into the cassette holder 2 as shown in FIG. 5, the cassette 1 is inserted into a stopper 21a of a cassette hold lever 21, which will be described later.
When the cassette 2 is further inserted, the cassette 12 is locked at the insertion end position. At this time, the cassette holding spring 2c provided inside the cassette holder 2 moves the inserted cassette 12 in the height direction. Press Therefore, the heights of the D cassette and the C cassette, which are the cassettes 12 that can be inserted, are slightly different (about 1 mm), but the difference in height is absorbed by this pressing force.

As shown in FIG. 2, a semi-cylindrical lock piece 2d is provided on one outer side of the cassette holder 2.
The lock piece 2d is engaged with a lock claw 5a provided at the tip of an eject lever 5b, which will be described later, and locked. An eject button 4 is attached to an end surface in the direction of arrow D, which is the front surface of the cabinet 1, so as to be able to reciprocate in the direction of arrow CD.
The interior of the cabinet 1 extends a predetermined distance from the eject button 4 in the horizontal direction C, and then the upper lock piece 2
A substantially L-shaped eject lever 4b extending in the G direction, which is the d direction, is provided.
Is provided. Further, although not shown, the eject lever 4b is urged in the D direction.

When the cassette holder 2 is closed, the lock claw 4a of the eject lever 4b is attached to the lock piece 2d.
Are engaged to lock the cassette holder 2 in the closed state. In such a state, when the eject button 4 is pushed in the direction C, the engagement between the lock piece 2d and the lock claw 4a is released, and as shown in FIG. It rotates clockwise and comes into contact with a stopper (not shown) to open.

On the other hand, a main chassis 8 is provided below the cassette holder 2. As shown in FIG. 2, the main chassis 8 has a head plate 6 on which a magnetic head 5 is mounted, and reel stands 7,7. A motor (not shown) for driving the reel base 7 and a capstan (not shown) to run the magnetic tape, a flywheel, and the like are received. The above-mentioned head plate 6 is driven by driving means (not shown) to move forward and backward in the CD direction.

Further, a cassette receiver A9 and a cassette receiver B10 are erected on the main chassis 8, and the cassette 12 which comes into contact with the front end of the main chassis 8 in the direction D is urged in the direction C. A cassette holding spring 11 is provided. When the cassette holder 2 in which the cassette 12 is stored is rotated from the open state shown in FIG. 3 to the closed state shown in FIG.
In the closed state of the cassette holder 2, the cassette receiver A9 and the cassette receiver B10 are guided.
Sets the cassette 12 together with the cassette holding spring 2c to G
−H direction, and the cassette holding spring 11
Positions the cassette 12 in the CD direction together with the cassette receiver A9.

On the other hand, as shown in FIG. 6, a slider opening / closing lever 20 as a slider opening / closing member having a longitudinal direction in the EF direction is provided on the upper surface 2f of the cassette holder 2 in the B direction. One end of the opening / closing lever 20 is rotatably mounted around a fulcrum shaft 29, and a slider pressing pin 20a vertically provided at the other end is provided.
Is inserted into and penetrates a substantially arc-shaped elongated hole-shaped guide hole 2i formed in the upper surface 2f of the cassette holder 2, and hangs from the lower surface 2e of the cassette holder 2 as shown in FIG.

Further, the slider opening / closing lever 20 has
As shown in FIG. 6, an arm 20d is provided extending substantially in the direction from the fulcrum shaft 29, and a slider spring (first spring) for urging the slider opening / closing lever 20 in the clockwise direction is provided at the tip of the arm 20d. A biasing means 25 is stretched between the hook and the hook on the upper surface 2f.

The slider pressing pin 20a of the slider opening / closing lever 20 is set so as to be inserted into the slider opening guide recess 207 of the D cassette 200 when the D cassette 200 is inserted with the cassette holder 2 opened. I have. Therefore, when the D cassette 200 is inserted into the cassette holder 2, the slider pressing pin 20a contacts the side of the slider 202,
The slider 202 rotates counterclockwise while pressing the slider 202 in the opening direction. Further, projections A20b and projections B20c are provided on the slider opening / closing lever 20, and consideration is given to reducing sliding resistance when the slider opening / closing lever 20 rotates.

On the other hand, on the upper surface 2f of the cassette holder 2, a heart cam (cam member) 23 is provided at the side in the direction A and at the end in the direction E, and the cam portion 23c is oriented in the direction F so that the fulcrum shaft B30 is at Is provided rotatably on its fulcrum shaft B
A spring C (second biasing means) 27 is disposed on the spring 30. The spring C27 is configured to bias the heart cam 23 in the counterclockwise direction and also in the upper surface 2f direction. It has both a pressing force and a turning force.

As shown in FIGS. 7 and 8, the lower surface of the heart cam 23 is moved from the cam portion 23c to the fulcrum shaft B30.
In the direction, a guide groove A23a and a V-shaped concave portion (engaging portion) 23b recessed in the F direction provided in the guide groove extending substantially in the A direction from the guide groove A23a are provided, as shown in FIG. They guide a lock pin (projection) 21g of a cassette hold lever (moving member) 21, which will be described later.

The above-described cassette hold lever 21 is formed to have a substantially L-shaped cross section, and guides and positions a D cassette 200 as a cassette when it is stored in the cassette holder 2 and guides the positioning member in a mounting / removing direction when mounting / detaching. As shown in FIG. 5, the guide holder 2 slides in contact with an elongated guide hole 2h in the FE direction drilled in one cassette storage portion 2b, which is a side surface in the A direction of the cassette holder 2, which is a side portion in the A direction. Mounted as possible.

The upper end of the cassette hold lever 21 has a guide pin A2
1b, and a guide pin B21c is provided on the other upper end of the guide pin A21b. Further, the guide pin A21b and the guide pin B21c are mounted on the upper surface of the cassette holder 2. 2f A
It is slidably inserted into a substantially L-shaped elongated guide hole A2j and a guide hole B2k that extend slightly inward with respect to the insertion direction of the cassette 12 in the direction side. Thus, the cassette hold lever 21 is freely slidable in the FE direction in the guide hole 2h.

Further, the cassette hold lever 21 is
A spring D28 is stretched between the guide pin A21b and the hook 2p erected on the cassette insertion port side of the cassette holder 2, whereby the cassette hold lever 21 is moved in the direction F, which is the direction of the cassette insertion port. Being energized.

Such a cassette hold lever 21
When the operator inserts the cassette 12 into the cassette accommodating portion 2b and further inserts it in the direction E, as shown in FIG. 9, the cassette is inserted into the stopper 21a, which is the bent end of the cassette hold lever 21, as a cassette. For example, D cassette 2
00 is in contact with the D cassette 200 and
The lock claw 2 described later moves along the guide hole A2j and the guide hole B2k in the direction, and penetrates through the cassette hold lever 21 to protrude inward when the storage is completed.
2a.

The lock lever 22 having a substantially L-shaped cross section having the lock claw 22a at one end thereof is inserted into a boss 21e which is provided on the cassette hold lever 21 so as to extend outwardly from the cassette hold lever 21. It is movable in the direction,
The spring B26 is pressed against the inner surface of the cassette hold lever 21 in the B direction. Further, in the lock lever 22, the lock claw 22a penetrates the cassette hold lever 21 and protrudes into the cassette accommodating portion 2b as described above, and when a D cassette 200 is inserted as a cassette, The locking claw 22a fits into the side recess 201 of the D cassette and locks.

A lock release lever 24 extending in the FE direction is provided on a side portion of the cassette holder 2 which covers the cassette hold lever 21 and the lock lever 22 which is a portion in the direction A, and the lock release lever 24 is FIG.
As shown in FIG. 3, the cassette housing portion 2b is rotatably mounted on a fulcrum boss 2q which is provided outwardly on the side of the cassette insertion port side of the cassette housing portion 2b, and has a forming spring 24c.
It is urged clockwise by the forming spring 24c, but is positioned by a stopper 2m provided on the side of the cassette holder 2.

Further, the lock release lever 24 is provided with a lock release claw A24a at the distal end in the E direction, and is provided with a lock release claw B24b at the distal end in the F direction. When the holder 2 is opened from the closed state, it comes into contact with an end of a lock release lever B31 described later provided on the cabinet 1 and rotates counterclockwise.

The above-described lock release lever B31 is rotatably disposed on the main chassis 8, extends in the GH direction, and is pivotally mounted on the fulcrum shaft C32 such that the distal end thereof rotates substantially in the CD direction. It is attached and urged clockwise by a spring E33. Note that the lock release lever B31
Is held at a predetermined position by a stopper (not shown), and a release claw 31a is formed at the top end in the G direction, which is the upper end. When the cassette holder 2 is opened from the closed state as described above, as shown in FIG. The release claw 31a comes into contact with the lock release claw B24b of the lock release lever 24. As the lock release lever 24 rotates, the urging force of the forming spring 24c increases, and the urging force is reduced. When the urging force of the spring E33 is exceeded, the lock release lever B31 rotates, and the lock release claw B
The contact between the release claw 24b and the release claw 31a is released.

Next, the operation of attaching and detaching the D cassette 200 in the configuration of the first embodiment will be described below. When performing recording or reproduction on the D-cassette 200 in the recording / reproducing apparatus, the eject button 4 is pushed in the direction C while the cassette holder 2 is closed as shown in FIG. Thereby, the engagement between the lock claw 4a of the eject lever 4b and the lock piece 2d is released, and the cassette holder 2 is opened by the action of the spring 34 attached to the fulcrum shaft 1a of the cassette holder 2 as shown in FIG. Is done. In this state, the D cassette 200 is inserted into the cassette accommodating portion 2b as the cassette 12 in the E direction.

Here, for example, D
In a state where the cassette 200 is inserted into the front portion 206 to the extent that the slider pressing pin 20a of the slider opening / closing lever 20 abuts, as shown in FIGS.
The slider opening guide recess 20 adjacent to the end of the D cassette 200 on the B direction side
7, when it is further inserted, as shown in FIG. 9, it comes into contact with the slider opening guide recess 207 and moves while slidingly contacting the guide slope 207a in the slider opening guide recess 207 with the movement of the D cassette 200. I do. Accordingly, the slider opening / closing lever 20 rotates counterclockwise against the urging force of the slider spring 25. By this operation, the slider pressing pin 20a moves the slider 2
02 is moved in the direction A to expose the head insertion opening 206 of the D cassette 200 as shown in FIG.

In the course of such a movement, as shown in FIG. 9, the front surface 203 of the D cassette 200 comes into contact with the stopper 21a of the cassette hold lever 21, and the guide pins A21b and B21c are respectively connected to the cassette. It is inserted into the guide holes A2j and B2k of the holder 2 and the main body of the cassette hold lever 21 is guided by the guide holes 2h of the cassette holder 2 as shown in FIG. As a result, the cassette hold lever 21 slides in contact with the guide hole 2h due to the insertion force of the D cassette 200 by the operator.
Move in the direction.

At this time, as described above, each guide hole A2j
Further, since the guide hole B2k is inclined in the direction B, which is inside the direction A-E, when the cassette hold lever 21 moves in the direction E, the insertion of the D cassette 200 is started. The claw 22a has a slight gap with the side surface 210 of the D cassette 200, and then the D cassette 20
0 in the direction E, the cassette hold lever 2
As shown in FIG. 13, the lock claw 22a of the lock lever 22 fitted to the boss 21e erected at 1 moves along with the cassette hold lever 21 in the E direction while approaching the side surface of the D cassette 200 in the A direction. I do. Further, when the storage of the D cassette 200 is completed, the lock claw 22a is
As shown in FIG. 15A and FIG.
00, the D-shaped cassette 200 is held.

On the other hand, when the cassette hold lever 21 moves in the direction E in this way, as shown in FIG. 13, the above-described substantially dome-shaped lock pin 2 formed at the tip of the guide pin B21c of the cassette hold lever 21 is formed.
1 g contacts the end face of the cam portion 23 c of the heart cam 23.

The heart cam 23 is a cassette holder 2
, Which is pivoted about a fulcrum shaft B30, urged in a counterclockwise direction by a spring C27, and has a stopper hole 2n formed in the upper surface 2f and an end in the direction E in the heart cam 23. When the heart cam 23 comes into contact with the engaging portion 23f vertically provided on the
The lock pin 21g is set so as to abut on the end face in the B direction of the end face of the above.

Therefore, as described above, the lock pin 21
When the D cassette 200 is further inserted in the E direction from the state in which g contacts the end surface of the cam portion 23c of the heart cam 23, the cassette hold lever 21 moves accordingly,
The lock pin 21g abutting on the cam portion 23c presses the heart cam 23. With this pressing force, the heart cam 23 rotates clockwise about the fulcrum shaft B30, and the lock pin 21g is inserted into the guide groove A23a of the heart cam 23 at a predetermined rotation position.

Subsequently, as the D cassette 200 moves in the E direction, the lock pin 21g moves in the guide groove A23a. At this time, since the lock pin 21g is inserted into the guide groove A23a of the heart cam 23 which has been rotated clockwise, the pressing force is released and the spring C is released.
The lock pin 21g is pressed by the counterclockwise urging force of the lock pin 21g.
Moves in the guide groove A23a in the direction E while sliding on the side wall of the guide groove A23a in the direction B.

Thereafter, when the D cassette 200 is further moved in the direction E, the lock pin 21g comes into contact with the guide groove wall 23d of the heart cam 23 shown in FIG. 7, and the guide groove wall 23d in that state is inclined. Thus, the heart cam 23 is pressed by the pressing force due to the insertion of the D cassette 200,
Rotating clockwise again, the heart cam 23 rotates until the guide pin A21b comes into contact with the convex portion 23e provided substantially in the direction A of the guide groove wall 23d.

By this contact, further movement of the cassette hold lever 21 is suppressed and stopped, so that the operator recognizes that the D cassette 200 has reached the storage completion position and stops the insertion operation. When the insertion operation is stopped, the cassette hold lever 21 is moved to the guide pin A21b and the hook 2p set up on the cassette holder 2.
The slider D25 moves in the F direction by the urging force of the spring D28 stretched between the spring 25 and the slider spring 25.

At this time, the pressing force on the heart cam 23 by the lock pin 21g is released, and the heart cam 23 attempts to rotate in the counterclockwise direction. FIG.
As shown in the figure, the projection 23e engages with a V-shaped concave portion 23b having a substantially V-shaped cross section and facing the direction F, that is, the cassette discharge direction. Thereby, the rotation of the heart cam 23 is locked, and the movement of the cassette hold lever 21 in the F direction is also locked, so that the cassette hold lever 21 is locked.

The D cassette 200 is locked in this manner, and the concave portion 201 of the D cassette 200 is held by the lock claw 22a of the lock lever 22 so that the D cassette 200 of the slider opening / closing lever 20 can be taken out. The movement of the D cassette 200 can be suppressed against the urging force in the F direction which is the possible position direction,
Further, the slider 20 is moved by the slider pressing pin 20a.
2 in the direction A to expose the head insertion opening 206 as shown in FIG.
Is completed.

Next, the operation of storing the C cassette 100 in the cassette holder 2 will be described. First, although not shown, when the C cassette 100 starts to be inserted into the cassette holder 2, the slider pressing pin 20a comes into contact with the front portion 106 of the C cassette 100. Subsequently, when the C cassette 100 is further inserted, as shown in FIGS. 12 and 13, the slider pressing pin 20a moves while sliding on the front surface portion 106, and the slider opening / closing lever is moved in the same manner as the above-described D cassette 200. 20 rotates counterclockwise. At this time, the front part 106 of the C cassette 100 abuts against the stopper 21a of the cassette hold lever 21,
As in the case of the D cassette 200, the cassette hold lever 21 moves in the E direction.

During this movement operation, the lock lever 22 provided on the cassette hold lever 21 can be moved in the direction A. As the C cassette 10 is inserted in the storage direction, the lock claw 22a A of cassette 100
The C cassette 100 comes into contact with the directional side surface portion 108 and receives the urging force in the B direction by the urging force of the spring B26, and moves in the storage direction while being positioned in the longitudinal direction.

Further, by moving the cassette hold lever 21 in the E direction in this way, as shown in FIG. 14 (b), the cassette hold lever 21 is erected inward at the end of the lock lever 22 in the E direction. The holding claw 21d presses the side surface portion 108 in the direction A of the C cassette 100 and abuts on the end surface in the direction F of the protrusion 105 provided on the side surface 108, and the protrusion 105 is brought into contact with the stopper 21a. By holding the C cassette 100 therebetween, the C cassette 100 is held.

At this time, as shown in FIG. 16, when the lock pin 21g comes into contact with the cam portion 23c of the heart cam 23 and the C cassette 100 is further inserted in the E direction, which is the storage direction, the D cassette 200 and Heartcam 2
3 operates, the lock pin 21g is held, and the storage of the C cassette 100 is completed.

Thus, C cassette 100 and D cassette 100
The cassette 200 is stored in the cassette storage section 2b of the cassette holder 2. Therefore, C cassette 100 and D
When the storage of the cassette 200 is completed, the C cassette 10
0 or D cassette 200 is cassette hold lever 2
1 hold claw 21d, lock claw 2 of lock lever 22
2a, and the lock pin 21g of the cassette hold lever 21 is locked by the heart cam 23.

For this reason, the C-cassette 1 is moved by the slider opening / closing lever 20 which is urged clockwise and presses the C-cassette 100 or the D-cassette 200 in the discharging direction.
The situation where the 00 or D cassette 200 is pushed up in the F direction is avoided, and the C cassette 100 or the D cassette 200 is positioned in the longitudinal direction.

Therefore, the cassette holder 2 is opened, that is, the C cassette 100 or the D cassette 200
When the user rotates the cassette from the removable cassette removable position to the recordable / reproducible position, which is a closed state, the storage of the C cassette 100 or the D cassette 200 is completed.
Can be held while maintaining the open state.

Next, when the cassette holder 2 is in the opened state, the storage of the C cassette 100 or the D cassette 2 is completed.
The operation for removing 00 from the cassette holder 2 will be described. This is performed when the C cassette 100 or the D cassette 200 is housed in the cassette holder 2 but needs to be taken out for some reason before the cassette holder 2 is closed.

C cassette 100 or D cassette 200
Has been completed, but as shown in FIG. 1, in the opened state where the cassette holder 2 is not yet closed, the operator pushes the C cassette 100 or the D cassette 200 lightly again in the E direction, that is, The lock pin 21g is pushed to the extent that it does not contact the guide groove wall 23d. afterwards,
The pressing is released, for example, an operation of releasing the hand is performed.

At this time, the front portion 10 of the C cassette 100
Since the stopper 21a of the cassette hold lever 21 is in contact with the front surface 203 of the 6 or D cassette 200, the cassette hold lever 21 slightly moves in the E direction. As a result, the lock pin 21g is
Is biased in the counterclockwise direction.
3 moves in the E direction while sliding on the B-direction wall portion of the V-shaped concave portion 23b, and comes into contact with the B-direction wall portion in the guide groove 23a when the contact with the V-shaped concave portion 23b is released. To move.

At this time, when the pressing force for pushing the C cassette 100 or the D cassette 200 is released, for example, an operation of releasing the hand is performed, the lock pin 21g is disengaged from the V-shaped concave portion 23b. Lever 21
Moves in the F direction by the urging force of the spring D28,
Accordingly, the C cassette 100 or the D cassette 200 moves in the F direction, which is the position where the cassette 100 can be taken out.

At this time, the cassette hold lever 21
Moves about 1/3 of the cassette holder 2 in the F direction, the C cassette 100 or the D cassette 200 is moved to a position where it can be easily taken out, and the operation of extracting the C cassette 100 or the D cassette 200 can be easily performed.
Further, since the cassette hold lever 21 and the lock lever 22 hold the side surfaces of the C cassette 100 or the D cassette 200 while urging them, the C cassette 100 or the D cassette 200 is moved when the spring D28 moves. A smooth extraction operation can be performed without jumping out of the holder 2.

Next, the operation when the cassette holder 2 is closed from the position where the cassette 12 which is the C cassette 100 or the D cassette 200 can be detached and the cassette 12 is moved to the recordable / reproducible position will be described. At this time, the operator closes the cassette holder 2 opened as described above by a pressing operation. At this time, FIG.
As shown in (2), the lock claw 4a of the eject lever 4b engages with the lock piece 2d of the cassette holder 2, and the cassette holder 2 is held in the closed state.

It is also possible to use an electric means such as a motor for the closing operation of the cassette holder 2 as described above. In such a case, for example, a switch may be provided in the cabinet 1 and the switch may be turned on to activate the above-described electric means.

In the recording / reproducing operation on the cassette 12 closed together with the cassette holder 2 as described above, the magnetic head 5 is moved in the direction D and inserted into the head insertion opening (not shown) of the cassette 12. It is started by.
In this case, what is stored in the cassette holder 2 is D
Even in the case of the cassette 200, as shown in FIG.
, The transition to the recording / reproducing operation can be quickly performed.

Next, an operation of taking out the cassette 12 housed in the cassette holder 2 and closed as shown in FIG. 2 will be described. First, in the recording or reproduction state, when a stop button (not shown) for recording or reproduction is operated, the magnetic head 5 moves in the C direction which is the standby position. Thereafter, when the eject button 4 is pressed in the direction C by the operator, the lock claw 4a of the eject lever 4b and the lock piece 2 of the cassette holder 2, as shown in FIG.
The cassette holder 2 is disengaged from the spring 34.
It is opened by the urging force of.

At this time, the cassette holder 2 slowly rotates due to the viscous resistance of the damper 3 meshing with the teeth 2a. With the rotation of the cassette holder 2, as shown in FIG. 18, the release claw B 24 b and the lock release lever B of the lock release lever A 24 fitted and coupled to a fulcrum boss 2 g erected on the side in the direction A of the cassette holder 2.
31 engages with the unlocking claw B31a. With this engagement, the lock release lever A24 rotates clockwise against the clockwise urging force of the forming spring 24c. Therefore,
The biasing force of the spring E33 is set to be greater than the biasing force of the forming spring 24c.

By the rotation of the lock release lever 24,
The unlocking claw A24a moves in the upward direction G, contacts the engagement piece 23g of the heart cam 23, and the heart cam 23
Is moved in the G direction. With this operation, the lock pin 21g of the cassette hold lever 21 and the V of the heart cam 23 are
The engagement with the concave portion 23b is released, and the spring D28 is released.
The cassette hold lever 21 moves in the F direction due to the urging force. Therefore, the cassette 12 stored in the cassette storage section 2b of the cassette holder 2 also moves in the F direction and can be taken out.

At this time, the cassette holder 2 slowly rotates due to the viscous resistance of the damper 3, and the cassette hold lever 21 and the lock lever 22 press the side of the cassette 12. Is prevented from jumping out of the cassette storage section 2b.

Further, the cassette 12 is mounted on the cassette holder 2.
When the cassette hold lever 21 and the lock lever 22 are released from being pressed against the side of the cassette 12 by moving in the F direction, the urging force of the spring D28 and the slider spring 25 for moving the cassette 12 in the F direction. And the guide pins A21b and B21c, the guide holes A2j and the guide holes B
The cassette 12 moves slowly due to the sliding resistance with 2k. This also prevents a situation in which the cassette 12 jumps out of the cassette storage section 2b.

In addition, when the movement of the cassette 12 in the direction F is completed, the cassette 12 is partially exposed from the cassette holder 2 so that the cassette 12 can be easily removed. In this manner, the attachment and detachment of the C cassette 100 or the D cassette 200 can be performed in the same manner as in the case of a conventional tape recorder for a compact cassette.
Alternatively, it is possible to prevent a feeling of strangeness.

As described above, in the configuration of the first embodiment, C
When the cassette 100 is stored in the cassette holder 2, the slider opening / closing lever 20 comes into contact with the front surface portion 106 of the C cassette 100 and rotates counterclockwise with the movement of the C cassette 100 in the storage direction E. Move, C
It does not hinder the insertion of the cassette 100.

On the other hand, when the D cassette 200 is stored in the cassette holder 2, the slider opening / closing lever 20 is
A direction in which the slider 202 is inserted into the slider opening guide recess 207 of the D cassette 200, rotates counterclockwise with the movement of the D cassette 200 in the E direction, and presses the slider 202 in the opening direction A to open. Move to

Therefore, when the D cassette 200 reaches the storage completion position in the cassette holder 2,
When the slider 202 is completely opened, the D cassette 200
The head insertion opening 206 is opened, and the built-in magnetic tape is exposed.

When the C-cassette 100 or D-cassette 200 is rotated to the position where the storage-completion position is reached, the cassette hold lever 21 for pressing and holding the side of the C-cassette 100 or D-cassette 200 and holding the same. The lever 22 is connected to the cassette hold lever 21
The lock pin 21g provided on the
The cassette hold lever 21 is locked by engaging with the mold concave portion 23b. Therefore, the slider opening / closing lever 20 is urged by the slider spring 25 to prevent the slider opening / closing lever 20 from rotating from its rotational position in the return direction.

When the C-cassette 100 or D-cassette 200 reaches the storage completion position, the C-cassette 100 or D-cassette 200 is removed from the storage completion position by rotating the slider opening / closing lever 20 in the return direction. The situation of being pushed in the direction is avoided.

As described above, the operation of moving the slider 202 is not performed independently, but is performed simultaneously with the operation of storing the D cassette 200 in the cassette holder 2, so that the magnetic tape in the D cassette 200 having the slider 202 is moved. In the case of performing the recording / reproducing of the C tape 100, as in the case of performing the recording / reproducing of the magnetic tape of the C cassette 100,
It is possible to quickly shift to the recording / reproducing operation.

Further, the slider 20 of the D cassette 200
The movement of the D cassette 200 is performed by the movement of the D cassette 200 in the storage direction by the operation of the operator and the slider opening / closing lever 20 rotated by this movement. No electrical means is required to maintain the storage state, and the device is small, simple, low-cost, and can reduce power consumption.

Note that the above-described configuration is not simply a replacement of the conventional electrical configuration with a mechanical configuration, but is originally performed as one operation when recording and reproducing the D-cassette 200 as described above. Since the operation of storing the D cassette 200 in the cassette holder 2 is used, the operability is not reduced.

Further, according to the above configuration, as shown in FIGS. 7 and 8, a guide groove A23a is formed on the lower surface of the heart cam 23 in the direction of the fulcrum axis B30 from the cam portion 23c, and substantially A Inside the guide groove extending in the direction, there is provided a V-shaped concave portion 23b recessed in the F direction.

Therefore, the C cassette 100 or D
The cassette 200 is stored in the cassette holder 2, and before the cassette holder 2 moves to the recording / reproducing position and rotates, the C cassette 100 or the D cassette 20
When the 0 is lightly pushed in the E direction, the lock pins 21g engaged with the V-shaped concave portion 23b are both moved in the E direction, the engagement state is released, and the heart cam 23 is rotated by the spring C27, Therefore, the lock pin 21g moves into the guide groove A23a.

At this time, when the operation of pushing the C cassette 100 or the D cassette 200 is stopped and the pushing is released, the C cassette 100 or the D cassette 200
The cassette 12 is returned to the detachable position by the urging force of the spring D28 for moving the cassette 12 in the direction F and the slider spring 25.

As described above, the operator simply pushes the stored C-cassette 100 or D-cassette 200 lightly, and the lock pin 21g and the V-shaped concave portion 23b
Can be released from the C cassette 10
The removal of the 0 or D cassette 200 can be performed easily and quickly, and the replacement of the C cassette 100 or the D cassette 200 can be facilitated. Also, the returned C cassette 100
Alternatively, the D cassette 200 can be exposed from the cassette holder 2 by a predetermined amount, so that the D cassette 200 can be taken out extremely easily, and replacement can be performed smoothly.

In the configuration of the first embodiment, an example is described in which a magnetic tape is used as a recording medium built in the C cassette 100 or the D cassette 200. However, the present invention is not limited to this. The present invention is applied to an apparatus that can use both a second container as a second cassette including a slider and a first container as a first cassette without a slider and exposing a recording medium. May be.

Next, another embodiment of the present invention will be described as a second embodiment with reference to FIGS. 19 and 20. In addition,
For convenience of explanation, members having the same functions as the members shown in the first embodiment are given the same member numbers, and their explanation is omitted.

[Second Embodiment] In the recording / reproducing apparatus, FIG.
As shown in FIG. 5, a blocking lever 40 is rotatably mounted on the upper surface 2f of the cassette holder 2 around the boss 42 along the upper surface 2f.
, A contact pin 40a is vertically provided at a tip end thereof, and a spring F (third urging means) 41 is provided. The spring F41 has the functions of a compression spring and a torsion coil spring so as to urge the blocking lever 40 clockwise and to be pressed against the upper surface 2f of the cassette holder 2.

On the upper surface 2f of the cassette holder 2, a guide hole 43 having a substantially elongated hole shape with the boss 42 as a center of curvature is provided with the contact pin 40a urged clockwise.
Is inserted into the guide hole 43 so as to abut on the clockwise end of the guide hole 43 and the contact pin 40a rotates counterclockwise within a predetermined range. A guide rib 44 slidably in contact with the lower surface of the blocking lever 40 is provided upright along the B direction side. Such a guide rib 44 has a deformed rib shape having an inclined surface 44 a rising upward in a counterclockwise direction from a flat surface at a clockwise end of the guide hole 43. The other components are the same as in the first embodiment.

The contact pin 4 in the above-described blocking lever 40
0a is in contact with the clockwise end of the guide hole 43 in the standby state, and the contact position is when the D cassette 200 is inserted into the cassette holder 2 upside down, as shown in FIG. It is set to rotate counterclockwise in contact with the front surface 203 of the D-cassette 200, and the length of the contact pin 40a is set so that it can be fitted into the slider opening guide recess 211. As described above, the blocking lever 40 is a mechanism for preventing the D cassette 200 from being erroneously inserted.

Next, the operation of the configuration of the second embodiment will be described. When the cassette holder 2 is in the opened state,
As shown in FIG. 19, when the cassette 200 is inserted in the E direction into the cassette housing portion 2b with the wrong insertion direction upside down, the contact pin 40a of the blocking lever 40 and the front portion 203 of the D cassette 200 And the D cassette 20
With the insertion movement of 0, the blocking lever 40 rotates counterclockwise.

Subsequently, when the D cassette 200 is further inserted in the direction E, the contact pin 40a is fitted into the slider opening guide recess 211 of the D cassette 200. At this time, when the D cassette 200 is further inserted in the E direction,
The blocking lever 40 having the contact pin 40a attempts to rotate counterclockwise, but the contact pin 40a
Since it is fitted and held in the slider opening guide recess 211 of No. 0, the rotation of the blocking lever 40 is engaged. Thereby, the further insertion of the D cassette 200 is locked.

Thus, the D cassette 2 in the wrong position is
00 cannot be continued, and the operator can recognize such an erroneous insertion of the D cassette 200 as an erroneous insertion, and can perform the insertion operation in the correct insertion direction again.

Next, the operation of storing the D cassette 200 in the cassette storage section 2b in the correct direction will be described.
When the D cassette 200 is stored in the cassette storage section 2b, the contact pin 40a of the blocking lever 40 and the D cassette 20
The stop lever 40 pivots in the counterclockwise direction due to the contact with the front part 203 of the zero.

Subsequently, when the D cassette 200 further moves in the direction E, the blocking lever 40 rotates while slidingly contacting the guide rib 44 provided on the upper surface 2f of the cassette holder 2 with the movement. Further, when the blocking lever 40 rotates counterclockwise and slides on the inclined surface 44a, the blocking lever 40 moves away from the upper surface 2f with the rotation.

As a result, the contact area between the contact pin 40a and the front surface 203 of the D cassette 200 is reduced, and when the D cassette 200 is completely stored, the tip of the contact pin 40a is moved to the upper surface of the D cassette 200. Contact 204. Although not shown, the same applies to the case where the C cassette 100 is inserted in place of the D cassette 200. When the storage of the C cassette 100 is completed, the upper surface of the C cassette 100 and the tip of the contact pin 40a are connected. Abut

In the D cassette 200 thus housed in the cassette housing section 2b, the cassette holder 2 is closed in the same manner as in the first embodiment.
Locked and set to the recording / reproducing position as in the first embodiment. In this case, the operation of the other members is the same as that of the first embodiment described above, and will not be described. Since the contact pin 40a of the blocking lever 40 when the storage is completed contacts the upper surface portion 204 of the D cassette 200 or the upper surface portion of the C cassette 100 while being urged by the spring F41, the urging force of the spring F41 is applied. Can be used as auxiliary means for the cassette pressing spring 2c.

As described above, the configuration of the second embodiment has the effects of the first embodiment, and the operator can
When the cassette 200 is erroneously inserted, the erroneous insertion can be recognized before the insertion is completed. Therefore, damage to the D cassette 200 such as damaging the reel base by pressing the reel base against the surface of the D cassette 200 where no reel hole is provided. In addition, damage to the reel base and the like in the recording / reproducing apparatus is also avoided.

In addition, in the above configuration, the C cassette 10
Since there is almost no difference between the normal operation of inserting the D cassette 200 and the operation of inserting the D cassette 200, the operation of inserting and storing the C cassette 100 or the D cassette 200 for recording / reproducing can be smoothly performed without any discomfort.

In the structure of the second embodiment, an example in which the mechanism of the first embodiment is provided with a mechanism for preventing erroneous insertion, such as the blocking lever 40, is provided.
A cassette having a concave portion for opening the slider in one direction is used, and the configuration of the second embodiment can be applied to any cassette holder as long as it is a cassette holder for storing the cassette. It is possible.

[0138]

According to the first aspect of the present invention, as described above, the first cassette or the second cassette is inserted and held, and the first cassette or the second cassette is attached and detached. A cassette holder is provided for moving between a cassette detachable position and a recordable / reproducible position for recording / reproducing the first cassette or the second cassette, and when the second cassette is stored in the cassette holder, The slider is moved in the direction of opening by pressing the slider of the second cassette by pressing the slider of the second cassette by abutting the slider opening guide concave portion and moving the slider of the second cassette in the storage direction. When the first cassette is stored in the cassette holder, the first cassette comes into contact with a surface of the first cassette having the first opening. Accordingly, a slider opening / closing lever that is rotated in accordance with the movement of the first cassette in the storage direction is rotatably provided on the cassette holder, and is rotated in contact with the first cassette or the second cassette. A first urging means for urging the slider opening / closing lever in a direction opposite to the rotation direction is provided, and the slider opening / closing lever comes into contact with the first cassette or the second cassette inserted in the cassette holder, and moves. A moving member which is moved inward of the cassette holder so as to press a side portion of the first cassette or the second cassette, and a cam member which rotates in a predetermined direction by coming into contact with a projection provided on the moving member; And the cam member is provided with an engaging portion for engaging the first cassette or the second cassette with the projecting portion at the storage completion position.

Thus, when the second cassette is stored in the cassette holder, the second cassette in the storage direction
With the movement of the cassette, the slider is opened by the slider open / close lever, and the second opening of the second cassette is exposed. Therefore, even when recording / reproducing the second cassette provided with the slider, the recording / reproducing operation can be quickly shifted to the same operation as when recording / reproducing the first cassette.

Further, in the above configuration, the movement of the slider of the second cassette is performed by the movement of the second cassette in the storage direction by the operation of the operator and the slider opening / closing lever rotated by this movement. This eliminates the need for electrical means, and achieves the effects of reducing the size and simplification of the device and reducing power consumption.

As described above, in the recording / reproducing apparatus according to the second aspect, the guide groove for rotating the cam member in the predetermined direction by sliding the protrusion is provided in the recording / reproducing apparatus according to the first aspect. The engaging portion is formed in the cam member, and the engaging portion is a concave portion which is recessed in the discharge direction of the second cassette at a position in the guide groove opposite to the end in the insertion direction of the first cassette or the second cassette in the discharge direction. A second urging means for urging the cam member to rotate in a direction opposite to the predetermined direction is provided.

Thus, in addition to the effect of the first aspect of the present invention, the above configuration allows the operator to lightly push the first cassette or the second cassette which has been completely stored in the cassette holder, and to engage with the protruding portion. The first cassette or the second cassette can be easily and quickly taken out, and the exchange of the first cassette or the second cassette can be facilitated. In addition, the returned first cassette or second cassette can be exposed from the cassette holder by a predetermined amount, so that it is very easy to take out the cassette, and it is possible to smoothly replace the cassette or the like.

According to the third aspect of the present invention, as described above, when the second cassette is inserted upside down into the cassette holder, the contact pin is inserted into the slider opening guide recess. A blocking lever is rotatably provided on the cassette holder, and a third biasing means for biasing the blocking lever in a predetermined rotation direction to set the blocking lever at a predetermined position is provided.

Thus, in addition to the effect of the first aspect of the present invention, when the second cassette is erroneously inserted upside down, the insertion movement of the second cassette is suppressed by the contact pin, and the operation is improved. Can recognize the wrong insertion,
Further insertion of the second cassette can be stopped.

Therefore, according to the above configuration, when the operator erroneously inserts the D-cassette 200, the erroneous insertion can be recognized before the insertion is completed, and the insertion operation can be easily stopped. For example, the reel hole is not provided. D cassette 20
D cassette 2 for pressing the reel base against surface 0 to break it
00 is prevented, and on the other hand, an effect is obtained that damage to the reel stand and the like in the recording / reproducing apparatus is also avoided.

[Brief description of the drawings]

FIG. 1 is a plan view and a side view of a main part of a recording / reproducing apparatus according to a first embodiment of the present invention when a cassette holder is locked.

FIG. 2 is a sectional view of a main part of the recording / reproducing apparatus when it is closed.

FIG. 3 is a sectional view of a main part of the recording / reproducing apparatus at the time of opening.

FIG. 4 is a front view of a main part when a D cassette is inserted into the cassette holder.

FIG. 5 is a sectional view of a main part when a cassette is inserted when the recording / reproducing apparatus is opened.

FIG. 6 is a plan view of relevant parts when a D cassette is inserted into the cassette holder.

FIG. 7 is a plan view, a front view, and a side view of a heart cam provided in the cassette holder.

8A and 8B show the heart cam, wherein FIG. 8A is a bottom view of the heart cam, FIG. 8B is a sectional view taken along the line Y-Y of FIG. 8A, and FIG. It is XX arrow sectional drawing.

FIG. 9 is a plan view of a main part of the recording / reproducing apparatus when a D cassette is further inserted from the state shown in FIG. 6;

FIG. 10 is a sectional view of a main part of the recording / reproducing apparatus in a closed state.

FIG. 11 is a front view of a main part of the recording / reproducing apparatus in the state of FIG. 9;

FIG. 12 is a sectional view of a main part of the recording / reproducing apparatus in the state of FIG. 10;

FIG. 13 is a plan view of a main part of the recording / reproducing apparatus when a D cassette is further inserted from the state of FIG. 9;

FIGS. 14A and 14B are main part front views showing a state in which a side portion of the cassette is pressed by a cassette hold lever and a lock lever in the recording / reproducing apparatus. FIG. The case of is shown.

FIGS. 15A and 15B are main part plan views showing a state in which a side portion of the cassette is pressed by a cassette hold lever and a lock lever in the recording / reproducing apparatus. FIG. 15A is a diagram illustrating a D cassette, and FIG. The case of is shown.

FIG. 16 is a plan view of a main part when a C cassette is inserted into a cassette holder in the recording / reproducing apparatus and the cassette holder is locked.

17 is a front view of a main part of FIG. 16;

FIG. 18 is a side view of a main part showing unlocking of a heart cam when the recording / reproducing apparatus is opened.

FIG. 19 is a front view of a main part of a second embodiment of the recording / reproducing apparatus of the present invention.

FIG. 20 is a front view of a main part of FIG. 20;

FIG. 21 is a perspective view of a C cassette used in the recording / reproducing apparatus.

FIG. 22 is a perspective view showing a state where a slider of a D cassette used in the recording / reproducing apparatus is closed.

FIG. 23 is a perspective view of the D cassette in a state where a slider is opened.

FIG. 24 is a schematic configuration diagram showing a lock mechanism and a slider opening / closing mechanism of a recording / reproducing apparatus in a conventional example.

FIG. 25 is a main part configuration diagram when the cassette holder of the recording / reproducing apparatus is opened.

FIG. 26 is a main part configuration diagram of the recording / reproducing apparatus when the cassette holder is closed.

FIG. 27 is a schematic configuration diagram showing a lock mechanism and a slider opening / closing mechanism of a recording / reproducing apparatus in another conventional example.

[Description of Signs] 2 Cassette holder 20 Slider opening / closing lever 21 Cassette hold lever (moving member) 21g Lock pin (projecting portion) 23 Heart cam (cam member) 23b V-shaped concave portion (engaging portion) 25 Slider spring (first) Biasing means) 27 spring C (second biasing means) 200 D cassette (second cassette) 202 slider 207 slider opening guide recess

Claims (3)

(57) [Claims] 1. A first cassette containing a first recording medium and exposing a first opening for inserting a head formed in a front portion, and a second cassette containing a second recording medium and formed on a front portion. A second opening for inserting the head is openably and closably covered by a slider movable in the longitudinal direction of the front surface, and a slider opening guide recessed rearward from the front surface adjacent to one end of the slider. A recording / reproducing apparatus capable of at least one of recording and reproduction with respect to a second cassette having a concave portion, wherein the first cassette or the second cassette is inserted and held, and the first cassette is Alternatively, a cassette holder is provided which moves between a cassette detachable position for attaching / detaching the second cassette and a record / reproducible position for recording / reproducing the first cassette or the second cassette. When the second cassette is stored in a cassette holder,
The slider is moved in the opening direction by pressing the slider of the second cassette while pressing the slider of the second cassette by abutting on the slider opening guide concave portion to be rotated along with the movement of the second cassette in the storage direction. When the first cassette is stored in the cassette holder,
A slider opening / closing lever that pivots with the movement of the first cassette in the storage direction by being in contact with the surface of the first cassette having the first opening is rotatably provided on the cassette holder. A first urging means for urging the slider opening / closing lever, which comes into contact with the first cassette or the second cassette, in a direction opposite to the direction of rotation thereof, is provided; A moving member that moves in contact with the first cassette or the second cassette and moves inward of the cassette holder so as to press a side portion of the first cassette or the second cassette; A cam member that rotates in a predetermined direction by contacting the projected portion, wherein the first cassette or the second cassette engages with the projected portion at the storage completion position. A recording / reproducing apparatus, wherein a mating engaging portion is provided on the cam member. 2. The recording / reproducing apparatus according to claim 1, wherein a guide groove for rotating the cam member in the predetermined direction by sliding the projecting portion is formed in the cam member, and the engaging portion is formed in the cam member. In the guide groove, at the end of the first cassette or the second cassette in the insertion direction opposite to the discharge direction, a second
A recording / reproducing apparatus, wherein the recording / reproducing apparatus is provided with a second urging means for urging the cam member to rotate in a direction opposite to the predetermined direction. . 3. The recording / reproducing apparatus according to claim 1, wherein when the second cassette is inserted upside down into the cassette holder, a blocking lever having a contact pin inserted into the slider opening guide recess is provided. A recording / reproducing apparatus, further comprising: third biasing means rotatably provided on the cassette holder and biasing in a predetermined rotation direction to set the blocking lever at a predetermined position.