JPS59112456A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To realize a cassette holder of a complete correct standing transparent type by constituting so as to shift a state that this side is raised a little from a horizontal state to a state that an opening part of a cassette is positioned at the upper part, when it is inserted from a guard panel side. CONSTITUTION:A roller supporting shaft 16c of a cassette holder is engaged to a long hole part 36a of a driving lever 36, a roller supporting shaft 16b is engaged to a long hole part 43a of a driving lever 43 which is formed as one body with a driving gear 32 and rotatable centering around a supporting shaft 32a, and also the roller supporting shaft 16b is engaged to a guide groove 29b formed on a guide base 29. When a cassette loading motor 30 rotates, a cassette 15 moves to (b) and (c) from a state (a), and in the end, it becomes a state (d), and it is installed to a reel base 47 on a chassis 46, and a cassette supporting post 48, and in this state, a guard panel 15e of the casstte 15 becomes as opened state, and a magnetic tape can be drawn out and stored from and to the opening part.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording/reproducing apparatus having a cassette holder that allows a cassette to be seen through the cassette in an upright position.

Conventional Structure and Problems Traditionally, for example, a VH8 VTR cassette has an opening for loading a tape and a guard panel to shield it, and the tape is inserted into a magnetic recording/reproducing device through the opening. When designing a deck with a cassette designed in such a way that the cassette is placed in an upright position, the first
As shown in the figure, most of them had a cassette holder like a so-called kangaru pocket. In this case, for example, in the VH5 type cassette mentioned above, all the characters, designs, labels, etc. written on the cassette were turned upside down, which not only made it difficult to see, but also significantly degraded the quality of the product. . In FIG. 1, +1) is the main body of the magnetic recording/reproducing device, (2) is a cassette holder, and the cassette (3), which can be seen through the transparent part in an ejected state, can now be taken out.

(4) is a push button for operation, and (6) is a handle rotatable around a fulcrum (5a).

OBJECTS OF THE INVENTION The present invention eliminates the above-mentioned drawbacks of the conventional art, and aims to make it possible to realize a complete royal see-through type cassette holder even when using, for example, a VH8 type cassette as described above.

Structure of the Invention In order to achieve the above object, the magnetic recording/reproducing device of the present invention has an opening for storing a magnetic tape therein and pulling out the magnetic tape, and a guard panel for shielding the opening. , a magnetic recording and reproducing device using a cassette made to be inserted into the magnetic recording and reproducing device from the guard panel side, wherein the cassette is in a first state where the front side thereof is slightly raised from a horizontal state and the cassette is in the guard panel side. A cassette holder is provided for opening the panel and shifting it to a second state in which the opening is located at the top, and signals are recorded and reproduced in this second state.

DESCRIPTION OF EMBODIMENTS Hereinafter, one embodiment of the present invention will be explained with reference to the drawings (Figs. 2 to 6).
The explanation will be based on Figure).

In Figure 2, when looking from the front, the deck is equipped with a switch (P12), a switch (A), an eject switch (Q4), and a cassette (G) that appears to be standing upright inside the cassette holder GO, set in the specified position. There is. In addition, the deck θO has a tape counter (Ill, In) on the left side when facing the front.
The action push button (6) is on. FIG. 8 shows the layout of the main parts as seen from the front. In this state of cause 8, the magnetic tape (9) is being pulled out from the cassette OQ, and the guide post C (, O
Delete after ＼RAD 042 rotating head cylinder (g)
, inclined guide post enclosure, roller kite post (e),・
\Audio control on Radbase (21a)
The winding reel (15b) passes through the driving capstan (E), the pinch roller (C), the guide post (C), and the roller guide post (2), the roller guide post (Q1), and the inclined guide post (2). ). The magnetic tape (9) pulled out from the cassette Oυ is rotated so as to be wound around a substantially horizontal rotating head cylinder (g). The guide posts (c) and (c) are located at the openings (x5c) and 05d) of the cassette (g), respectively, before the magnetic tape (9) is pulled out from the set (a). The loading ring) is rotatably arranged with an inclination of approximately twice the lead angle in the vicinity where the magnetic tape (9) leaves the rotating head cylinder barrel. figure)
is connected to. The magnetic tape (9) coming out of the rotating head cylinder (to) is attached to a fixed inclined guide post (I
It wraps around I, and with the inclination slightly corrected, it is made a U-turn by the roller guide post (E) on the loading (A), and the cassette (to) is slightly tilted from the installation surface eM.
Audio control installed on the ivy head base (21a). 1) is connected to b11. Next, the magnetic tape (9) wound around the roller guide post connected by the loading ring (I) and the connecting means (not shown) is slightly wound around the fixed inclined guide post (E), so that the cassette is The height, direction, torsion, etc. are corrected so that the pinch roller (c) can be inserted approximately horizontally into the position (a), and the pinch roller (c) is connected to the loading ring slope by a connecting means (not shown), approximately perpendicular to the installation direction of the cassette αQ. After passing through the capstan (A) standing on the
The magnetic tape (9) is horizontally pulled out from the reset and wound horizontally onto the cassette αQ.

Next, the loading operation will be described. Cassette (to)
When the cassette αQ is installed at the predetermined position iW, the guide post lI has entered the opening (15C) (15d) of the cassette αQ. When a loading instruction is given, the guide post (E) follows the guide groove (not shown) and reaches a predetermined position on the left side of Figure 8, and the guide post (C) moves along the guide groove (not shown).
along the guide post) to reach the right position.

After that, the loading ring rotates counterclockwise, and the roller guide post rod first tapers the tip and enters the loop of the magnetic tape mainly formed by the guide post (1) from the bottom (III), and then the roller Guidepost(
B), the pinch roller (C) enters the loop.

When loading is completed, the roller guide post (A) is fixed on the loading ring (A) as shown in Figure 8, but the roller guide post (A) is connected to the loading ring by a connecting means (not shown). , and is positioned outside the outer periphery of the loading ring (b) by a positioning means (not shown). The pinch roller (c) is installed on a lever (not shown) that can freely rotate by 1ζ around the fulcrum pin (not shown) on the loading ring, and the pinch roller (c) is attached to a lever (not shown) that is rotatable around the entire center of the fulcrum pin (not shown) on the loading ring.
(not shown), the pinch roller Q→ and the capstan (to) are attached to the L side, making it possible to record and reproduce signals based on these vertical movements.

Next, the configuration of the cassette loading device will be described based on FIG. FIG. 4 shows the b-set fittings from the side. In this state, the user can freely insert and remove the cassette (IQ) on the buttocks. (A) is the cassette loading motor (
1 is a guide base that is attached via a mounting base (80a), and this guide base 4 has a support shaft (81a).
), the ground 1 gear 6I), which can rotate freely around the support shaft (82a
) The drive gear (2) is rotatable around the center.

Support shaft (88a) = A group of gears such as a rotatable cam gear (g) is arranged at the center. In these gear groups, the worm gear (b) attached to the rotating shaft of the cassette loading motor (to) and the worm wheel part of the mW gear 01) are in mesh with each other, and the spur gear middle part of the drive gear 01) is the middle part of the driving gear 01). ), and the drive gear (2) and the cam gear are connected. (to) is the drive lever. This drive! 1 Lil bar (2) is rotatable around the support shaft (85a), and the drive bottle (851)) installed in the drive 1/bar ζ)1 is rotatable around the support shaft (88a). The cam groove (811
It is stuck in b). This cam groove (88b) is approximately 15
The drive pin (85h) is inserted into the part closest to the center of rotation of the cam gear (in Fig. 4) and is formed within a range of an effective rotation angle of approximately 0°. When rotated, the cam groove (88b) is in a concentric circle around the support shaft (88a) for a while, and then moves toward the outer circumference. The driving lever (to) has an elongated hole (85c) at the tip thereof, and is engaged with the ]-lar (86c) at one end of the driving lever (to). Kakeru!
The lever 1a (7) is rotatable around the support shaft (86b). In addition to the drive lever, a lever (not shown) which is substantially the same as the single-motion lever (in order) and the excitation lever (in order) is provided so as to sandwich the cassette holder. The roller (86c) of the drive lever (7) is K<
It is provided so as to protrude from both sides of the m+ lever (to) and engages with the arcuate groove (29a) of the guide base (2). In Figure 4, the cassette holder QQ appears to have been lifted slightly to the right, and the Holgu population (
The cassette (a) can be slid in from 16a) using a light knife. (c) is a set b holding lever provided within the h set lever 9゛-(1$),
11m 'iiJ around the support l1llllI (88b)
and is urged counterclockwise by a tension spring (7) into contact with the fixed bottle. (gsc) is a cylindrical boss at one end of the cassette (l lever (7), which engages with the elongated hole (41b) at one end of the connecting lever Oυ.The connecting lever @p is the support IpH) It is rotatable around the connecting lever 41).The other end (41c) of the connecting lever 41)
) is not in contact with the shutter (6) in the state shown in Figure 4, but due to the drive of the cassette loading motor (q), the cassette 011 becomes almost horizontal.
- It is now in contact with @4. Cassette holder (ft9 has roller support + lqt+ (16b) (16c)
) is provided. In FIG. 4, a cassette stopper (not shown) is provided within the cassette holder (14) to prevent the cassette θG from entering further inside the cassette holder v-06 (to the left in the figure). The on roller support shaft (16c) is engaged with the long hole (86a) of the drive lever (to), and the roller support shaft (16c) is engaged with the long hole (86a) of the drive lever (to).
6b) is integrated with b<=+gear+n and can be rotated 1ζ times around the support shaft (82a).
) is engaged with. The roller support shaft (16b) also engages with a guide groove (29b) formed on the guide base.
In the middle of step b), the drive gear passes through a hole and a bolt that slightly interfere with the drive gear, but there is no difference between them as there is sufficient clearance between them in the thickness direction. (29C) is a guide groove carved four times in the guide base, and is for guiding the shutter (6). The shutter (6) has a guide groove (29
It is possible to slide from the left to the bottom right of the drawing along c). Although the shutter θ side itself will not be described in detail, it has a blind-like structure and prevents the inside of the device from entering from the outside in the state shown in FIG. 4. There is a spring hook at one end of the shutter (on the shutter), and this spring hook is engaged with the tension spring on the shutter (on the shutter).
C) is applied a force approximately clockwise along the guide groove (29c).

Next, the operation of the cassette holder αQ will be described.

In FIG. 4, when the cassette loading motor (to) rotates, the worm gear (b) on the motor shaft rotates. As a result, the drive gear C connected to the worm gear
The worm wheel section ( ) rotates clockwise around the support 1111 (81a). This rotation is transmitted from the spur tooth section of the drive gear 0υ to the IIJ<'FM gear, and the drive gear rotates counterclockwise around the support shaft (82a). This rotation is transmitted to the roller support shaft (16b) of the cassette holder a by a drive lever integrated with the drive gear (2), and the roller support shaft (16b) begins to rise along the guide. - The rotation of the universal drive gear (2) is also transmitted to the cam gear which rotates around the support shaft (88a), and the cam gear (to) rotates clockwise around the support shaft (SSa). A drive bottle (
85b) and is rotatable around the support shaft (85a).
The drive button lever (to) is moved to cam 1 by the rotation of the cam gear (to).
(88b) in a clockwise direction. This movement passes through the elongated hole (85c) of the drive lever (to) the drive lever C.
→t is transmitted to the roller (86c), and thereby the drive lever) can rotate counterclockwise around the support shaft (86b). When the cam gear (to) starts rotating clockwise, the cam groove (88b) is concentric with the support shaft (88a) for a while, so when the cassette holder is at 0, the movement is almost made only by the cam groove (29b). , the 011 section of the cassette (G) moves so as to be lifted. At this time, the other end of the connecting lever @ η (41c
) is biased by a tension spring ) (L4'
4 and the cassette holder h''-an becomes horizontal, the counterclockwise movement of the coupling lever θ force causes the elongated hole portion (41
The signal is transmitted from b) to the boss part (88c) of the cassette holding lever 2, and the cassette holding lever (c) rotates clockwise around the support shaft (88b) by stretching the tension spring (a). , the tip (88a) comes into contact with the rear side of the cassette 4, and even when the entire cassette holder M starts to rotate clockwise, the cassette tS-+ is held and it does not slip off from the cassette holder ri-a6. ing. As the cassette loading motor (1) continues to rotate,
The connecting lever ''-II) continues to push up the shutter (6), and as shown in Fig. 5, the cassette (11 moves from (a) to η
is attached to the cassette support post, and the cassette loading operation is completed.

FIG. ) allows the magnetic tape to be pulled out and stored from the opening when opened.

In addition, during the cassette loading ((Fig. 5)
(near the state of c)), the connection lever will no longer come into contact with the shutter θ, and the case of the cassette holder H will become 1 minute (
When the cassette loading movement is completed, the shutter θ is in the state shown in FIG. 6. At the same time, near the state of (c) in Figure 5, the cassette holding lever (to) is moved counterclockwise by the tension spring (g).
It rotates and comes into contact with the fixing pin ■.

At this time, the cassette (→) is no longer supported by this cassette holding lever el, but is supported from below by a cassette guide (not shown) fixed to the chassis 0. I have already mentioned that there are on both sides of the cassette holder QiG, but there are also 2
It goes without saying that smooth movement can be achieved by disposing a drive lever, etc., to transmit the rotation of the cassette loading motor and driving the cassette holder.

Effects of the Invention As described above, according to the present invention, for example, a VH5-type upper cassette has an opening and a guard panel for the opening, and is designed to be inserted mainly from the guard panel side. When inserting the cassette into the cassette holder, insert it slightly diagonally downward with light force, and then move the cassette holder so that you can see through it upright, making it very easy to insert the cassette and making it easy to see the cassette after it is installed. , the quality of the product is greatly improved, and the practical effects are great.

[Brief explanation of the drawing]

1. Country 1 is a perspective view showing a conventional example, FIGS. 2 to 6 show an embodiment of the present invention, FIG. 2 is an enlarged perspective view seen from the front, and FIG. 3 is a schematic cross-section showing the internal mechanism. 4 is a schematic cross-sectional side view showing the internal mechanism, FIG. 5 is a movement trajectory diagram of the cassette when the cassette is mounted, and FIG. 6 is a schematic cross-sectional 0111 plane view showing the internal mechanism of the cassette mounting machine. T! 1)-[4-ki tape, nl...cassette,
(15c) (15d) = opening, (15e)...
・Guard panel, o-kami...cassette holder, @...
・Guide base, (29b) (29c)...Guide groove, (to)...Cassette 1]-Ding motor, 6
υ...drive ntn gear, (arrogant...control 8 immediately I gear, (to)...cam gear, to) (to)...drive lever, (g)...cassette holding lever, @υ ...Connection lever,
02... Shutter, θ (... Drive lever distance h'1
1 person Yoshihiro Morimoto Figure 1~

Claims (1)

[Claims] The magnetic tape is stored in 18 parts, and has an opening for pulling the magnetic tape and a guard panel for shielding the opening, and a magnetic recording/reproducing device is accessed from the guard panel side. A magnetic recording/reproducing device that uses a cassette made to be inserted, wherein the cassette is in a first state in which its front side is slightly raised from a horizontal state, and in a first state in which the cassette opens a guard panel and the opening is at the top. A magnetic recording and reproducing apparatus is provided with a cassette holder which is positioned at a cassette holder for transitioning to a second state, and records and reproduces signals in this second state.