JPS5819732Y2 - Cassette storage device for magnetic recording and reproducing machines - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cassette storage device for a magnetic recording/reproducing machine, in which the cassette is moved as the cassette holder is opened and closed, making it easier to take out the cassette when the holder is opened. The present invention also provides a cassette storage device that allows the cassette to be stored smoothly when the holder is closed.

Conventionally, especially in upright see-through type magnetic recording and playback machines that have operation buttons at the bottom of the front panel, the center of rotation of the cassette holder is set at the bottom of the front panel, so if the opening angle of the holder is wide, the cassette holder The disadvantage is that if the button comes into contact with the operation button, or if it does not come into contact with it, it becomes very difficult to operate.

Therefore, since the opening angle of the holder is made small, it is inconvenient when taking out the cassette.

Furthermore, when inserting the cassette, the cassette must be pushed into the holder all at once, resulting in the cassette being misaligned.

Therefore, the present invention solves the above-mentioned drawbacks with a simple structure.

An embodiment of the device of the present invention will be described below with reference to the drawings.

In the figure, 1 is a lower substrate fixed to the main body of the apparatus, and 2 is an upper substrate which is a fixed substrate fixed to the lower substrate 1.

Reference numeral 3 designates an eject rod constituting a locking means for the cassette holder 11, which will be described later.A lock pin 4 is tightened in a side bent piece 3a of this rod 3, and furthermore, this rod 3 is attached to a fixing protrusion 1a of the lower substrate 1. is inserted into and engaged with the elongated hole 3b, so that it is slidably attached in the force direction of arrow AB, and is biased in the direction of arrow B, that is, the rod return direction, by the tension spring 5 suspended between it and the lower substrate 1. There is.

6.6 is a push button frame fixed to the lower end of the lower substrate 1, and the push button shaft 7 is fixed between these frames 6.6.

Reference numeral 8 denotes a cassette eject button, which is rotatably attached to the push button shaft 7 and rotated in the return direction (direction of arrow Cy5 in FIG. 3) by a push button spring 9 (see FIG. 3) attached to the push button frame 6. Although it is urged to move, it is prevented from rotating by the stopper shaft 10.

Reference numeral 11 denotes a cassette holder made of synthetic resin for storing a tape cassette 35 (see Figures 5, 7 and 8), and arms lla and 11b, which are integrally provided so as to extend downward from both sides of the holder, are rotated by the push button shaft 7, respectively. installed as possible.

Reference numeral 12 denotes a ring for preventing holder removal, which is attached to the push button shaft 7.

The cassette holder 11 includes a bent lock protrusion 11c, side guide portions 11d and 11e, and a slider guide groove 11f.
, 11g5 Long hole 11h for slider shaft insertion.

11i> and a transparent window 11j.

Reference numeral 13 denotes an angle fixed to the upper end of the upper substrate 2, and a lamp 14 is inserted into a notch 13a' provided in the bent piece 13a.
is installed.

15 is a plate-shaped holder interlocking member which is also a cassette protection member, and its upper and lower side bent pieces 15d to 15g have shafts 16.1.
7 and slider shafts 18 and 19 are tightened, and the interlocking member 15 is connected to the left and right bent pieces 13b of the angle 13,
It is rotatably attached to the substrate 2 by passing the shafts 16 and 17 through the holes 13c.

Furthermore, the interlocking member 15 has a reel shaft insertion hole 15a.
, 15b are opened and the take-up reel shaft 20 and supply reel shaft 21 are passed through.

A light guide window hole 15c is provided in the interlocking member 15 which has been cut off, and a light guide member 22 made of a translucent resin such as acrylic resin is attached to this hole 15c, and a part of the light guide member 22 is attached to the hole 15c.
The other end is configured to be able to face the lamp 14 as a light receiving section 22a.

Reference numeral 23 denotes a cassette receiving plate, which is rotatably attached to the lower end edge of the substantially U-shaped interlocking member 15 by a hinge 24.25, and the direction in which this cassette receiving plate 23 is pressed against the cassette holder 11 by a spring 26.27. It is biased in the direction of the arrow in FIG.

Reference numeral 28 denotes a cassette pressing spring that presses the rear of the cassette, and is attached to the center of the upper end of the interlocking member 15 with a metal fitting 28a.

29 is a torsion spring which is the 1C interlocking member biasing means;
3 attached to the shaft 16 is latched to the interlocking member 15, and the other end is latched to the upper substrate 2, urging the interlocking member 15 in a direction away from the upper substrate 2, in the direction of arrow E in FIG.

30 is a leaf spring which is the second interlocking member biasing means; -4 is fixed to the right side of the upper end of the upper substrate 2 by a screw 31;
The other end is brought into contact with the back surface of the interlocking member 15 in the direction of separating the interlocking member 15 from the upper substrate 2, similar to the torsion spring 29,
It is biased in the direction of arrow E in FIG.

Reference numeral 32 denotes a right side slider provided on the right side surface of the cassette holder 11, and is provided with an insertion hole 32a for the shaft 18 and a cassette contact portion 32b.

33 is a left side slider provided on the left side of the cassette holder 11, which also has an insertion hole 33a for the shaft 19 and a cassette contact portion 3.
3b is provided.

Only one of the sliders 32 and 33 may be provided.

Reference numeral 34 denotes an erroneous erasure detection piece for detecting the presence or absence of an erroneous erasure prevention piece provided on the back side of the tape cassette (see Fig. 6), and the shaft portion 34a of the erroneous erasure detection piece is It is attached to the upper substrate 2 so as to be rotatable about the center, and its detection part 34b can be inserted into the erroneous erasure detection hole 35a formed after breaking off the erroneous erasure prevention piece of the cassette 35, and the control protrusion at the other end. The portion 34c passes through the through hole 2c of the upper substrate 2, and further enters the hole 36a of the recording rod 36, which is arranged on the back surface of the upper substrate so as to be able to slide in the direction of the arrow AB force, thereby determining whether or not the recording rod 36 can slide. It's in control.

Further, a compression coil spring 37 disposed between the erroneous erasure detection piece 34 and the substrate 2 urges the detection portion 34b to rotate in the direction of contacting the back surface of the cassette 35, that is, in the direction of arrow F in FIG.

38゜39 is the pin for the cassette holder installed in the upper board 2,
40 and 41 are cassette positioning pins also implanted in the upper substrate 2.

42 is a capstan rotatably attached to a capstan bearing 2b provided on the upper substrate 2.

43 is a pinch roller, 44 is a recording/playback magnetic head,
45 is an erasing head.

Reference numeral 46 denotes a front panel (see FIGS. 3 and 1 to 10), which is provided with an opening 46a that allows the cassette holder 11 to rotate.

Reference numerals 47 and 48 denote holder springs attached to the cassette holder 11, which act to press the cassette 35 in the reel axis direction.

49 is a magnetic tape built into the cassette, 50 to 55 are for pausing, recording, and playing.

These are push buttons for rewinding, fast forwarding, and stopping operations (see Figure 1).

Taking the above structure into consideration, the operation will be explained next. The slider shafts 18 and 19 that are squeezed by the interlocking member 15 as described above pass through the long holes 11h and 11i for slider shafts provided in the cassette holder 11. Since the shaft hole 32a of the right slider 32 is inserted into the shaft circumferential hole 33a of the left slider 33, as the slider shaft 18.19 moves, the slider 32 and slider 33 move inside the cassette holder 11 into the slider guide groove. 11f and 11g.

Since the interlocking member 15 is biased by the torsion spring 29 and the leaf spring 30 in a direction away from the upper substrate 2 around the shaft 16.17, the cassette holder 11 that is interlocked with the interlocking member 15 also presses the push button shaft 1. The center is biased in the opening direction.

When the holder 11 is in the open state, the interlocking member 15 is closed as shown in FIG.
By the interlocking operation of the cassette holder 11 and the axis 18°19
moves upwards and becomes a button, and along with that the slider 32.3
3 has also been moved upward.

When this cassette holder 11 is open, the interlocking member 15
The side parts 15f and 15g connect the cassette holder 11 and the opening 46a of the front panel 46, and the lower part 15h connects the lower part of the cassette holder 11 and the upper part of the upper board 2, so that the cassette holder 11 and the front panel Opening 46a
A funnel-shaped opening is formed by the first interlocking member 15 and the cassette receiving plate 23 .

Therefore, the cassette can be inserted from any direction within the opening angle of the opening, as shown in the cassette 35' indicated by the dashed line in FIG. 8, and the cassette can be inserted easily.

Of course, you can easily replace the inserted cassette with another cassette.

Next, when the cassette holder 11 is moved to close from the state shown in FIG.
8.19 moves in the direction of the upper substrate 2, and the slider 32 and slider 33 move downward accordingly, as shown in FIG.

At this time, the slider 32 and the slider 33 are set so that their cassette contact portions 32b and 33b are located rearward from the cassette positioning pins 40 and 41, so the cassette 35 and the cassette holder are connected to the pins 38 and 39, and the cassette positioning pins 40 and 41. Positioned by pins 40 and 41, the cassette pressing spring 28 is seen from the back side, and the holder spring 4 is seen from the top side.
7, 48 to ensure that it is mounted in the correct position.

At this time, since the cassette holder 11 is always biased in the opening direction as described above, the lock protrusion 11c of the cassette holder 11 is locked to the lock pin 4 of the eject rod 3 as shown in FIGS. 1 and 3. By being locked, the properly installed state of the cassette 35 is maintained.

Next, let's talk about ejecting a cassette.
When the eject button 8 is operated to push the eject rod 3, the eject rod 3 moves upward against the biasing force of the spring 5.
As it slides in the direction of arrow A, the lock pin 4 comes off the lock protrusion 11c of the cassette holder 11, so the holder 11
is unlocked.

Therefore, the interlocking member 15 includes the torsion spring 29 and the leaf spring 30.
As shown in FIG. 8, the upper substrate 2 is
The cassette holder 11 also rotates in the opening direction.

During this eject operation, as shown in FIG.
Since the cassette 35 is rotatably biased by the spring 37 so as to enter into the cassette 5a, an attempt to move the cassette 35 in the direction of the arrow in order to eject the cassette 35 results in a strong resistance.

Therefore, since a strong biasing force is required at the beginning of the opening operation of the cassette holder 11, a leaf spring 30 as a second biasing means is added in this embodiment.

However, as shown in FIG.
Since the cassette holder 11 is in a free state during the opening movement of the cassette holder 11, no biasing force is applied to the interlocking member 15 for further opening movement, and the cassette holder 11 is moved only by the biasing force of the torsion spring 29. be opened.

As described above, the biasing force in the opening direction of the cassette holder is changed in two steps, such that it is initially large and then becomes small.

This also has the effect of reducing the shock by reducing the biasing force in the latter stages of opening the holder.

Next, regarding the illumination device, as shown in FIG. 9, when the cassette holder 11 is closed, the light guiding member 22 approaches the upper substrate 2, and its light receiving part 22a comes to a position facing the lamp 14, so the arrow As shown in , the light beam emitted from the lamp 14 passes through the light guide window hole 15c of the interlocking member 15 via the light guide member 22, and illuminates the tape confirmation window of the cassette 35 from the back side. When properly installed, you can clearly check the amount of tape remaining.

On the other hand, when the cassette holder 11 is in the open state as shown in FIG. Come to a position that does not face 14.

Therefore, as shown in the figure, the light beam of the lamp 14 travels straight through the recording/reproducing head 44 and the capstan 42.
, the erase head 45 button, the pinch roller 43, and other parts around the head are illuminated.

This has the advantage that it is easy to check for dirt in various parts around the head, to clean the dirt, and to demagnetize the head.

As described above, according to the cassette storage device for a magnetic recording/reproducing machine of the present invention, when the cassette holder is opened by the eject operation, an opening for inserting the cassettes is formed and these cassettes are pushed out, so that the cassettes can be removed. can be done extremely easily.

The amount by which the cassette is pushed out can be changed relatively freely by setting the amount of movement of the slider, and the cassette can be pushed out by a sufficient amount for removal.

Further, when the cassette holder is closed, the cassette is gradually moved into the holder due to its own weight in conjunction with the closing movement of the holder, and is correctly installed in the proper position.

As described above, according to the present invention, the cassette (7Jllf) can be easily inserted and inserted, and can be carried out with a simple structure, making it inexpensive and effective.

[Brief explanation of the drawing]

Fig. 1 is a front view of a cassette storage device of a magnetic recording/reproducing machine according to an embodiment of the present invention, Fig. 2 is a front view of the same device excluding the cassette holder, and Fig. 3 is a right side view of the same device. , 4th
The figure is a perspective view of the main parts of the same device, FIG. 5 is a sectional view of the X-X line in FIG. Fig. 1 is a sectional view of the Y-Y line showing the cassette holder in a closed state; Fig. 8 is a sectional view of the Y-Y line in Fig. 1 showing the cassette holder of the device in an open state;
Fig. 9 is a sectional view of the line Z-Z in Fig. 1 showing the cassette holder of the same device in a closed state, and Fig. 10 is a sectional view of the line z-z in Fig. 1 showing the cassette holder of the same device in an open state. be. 11... Cassette holder, 15... Connection member, 18.19... Slider shaft, 32, 3
3...Slider, 32b, 33b...
・Cassette contact part.

Claims (1)

[Scope of utility model registration request] A cassette holder for storing a tape cassette is rotatably provided so that it can be opened and closed through an opening provided on the front side of the main body of the magnetic recording/reproducing machine, and the tape cassette is inserted into the cassette holder through a side guide portion of the cassette holder. A slider having a cassette abutting portion with which the insertion end surface of the tape cassette can abut is provided so as to be slidable in the cassette insertion direction; A holder interlocking member rotatably connected to the slider by a slider shaft is provided, and the slider slides in the direction of ejection and insertion of the tape cassette with respect to the cassette holder in conjunction with the opening/closing operation of the cassette holder, thereby opening and closing the cassette holder. A cassette storage device for a magnetic recording/reproducing machine, wherein the tape cassette is sometimes pushed out by the slider, and when the cassette holder is closed, the tape cassette is inserted into the holder by its own weight as the slider moves.