JPS61180958A - Cassette loading device - Google Patents

Abstract

PURPOSE:To simplify a loading action of a tape cassette by opening and closing a slider on the way of an automatic shift of the tape cassette having an open/ close cover and a slider and also omitting a front door to prevent mixture of the dust, etc. CONSTITUTION:The titled device contains a rotary mechanism which abuts a cassette holder 5, on a stopper 7 and turns it. Thus the holder 5 is projected upward. In such a way, the loading and unloading actions of a tape cassette 47 is simplified. When a tray 1 is set by a driving device with which a rack 24 is moved by a motor 20 via a gear, the holder 5 touches a stopper 11 or 7 and stops there. As a result, a relative shift is secured between the tray 1 and the holder 5. Thus the slider of the cassette 47 can be opened and closed automatically.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention This invention relates to a cassette loading device for automatically moving and loading a tape cassette from an entrance on the front side of the device to a predetermined position in a magnetic recording/reproducing device using a tape cassette. It is.

Conventional tape cassettes used in cassette loading devices must be protected from dust, fingerprints, and the like. At present, the equivalent of such tape cassettes is %VTR,
There are also tape cassettes such as 8mm VTR, but this structure only has an opening/closing lid on the front.

For example, a conventional cassette loading device (front loading system) that automatically loads a tape cassette in a 14' VTR, etc. has a structure as shown in FIG. There is.

That is, the tape cassette 1oo inserted from the cassette inlet/outlet 104 of the main body has a cassette pressing spring 102 at the top.
The opening/closing lid 103 is held in a cassette holder having a cassette holder and moved horizontally from the cassette holder to the position B, and from the position B to the position C, the opening/closing lid 103 comes into contact with the block 105 and moves downward while opening, and is attached to a predetermined position. When the tape cassette is ejected, it ascends from C to B, moves horizontally from B to the entrance for people, and is ejected to position D.

Note that detailed illustrations and explanations of mechanisms for horizontally moving the cassette holder 101 and for raising and lowering the cassette holder 101 will be omitted.

Problems to be Solved by the Invention However, with such a structure, when using the tape cassette 4 shown in FIG. 6, there is a problem in that the slider 68 cannot be opened or closed.

That is, in order to open the slider 68, it is necessary to release the slider lock 70 shown in FIG. 8, stop the slider, and move the tape cassette 47. Also, when ejecting the tape cassette 4, the slider 68 is temporarily stopped.
7 needs to be moved and returned to its original position. In order to realize this operation, a cassette holder that has a protrusion that releases the slider lock and a notch that stops the slider 68 and can be moved horizontally and vertically is used, and the slider 68 is moved by moving the tape cassette 47 within the cassette holder. A mechanism for opening and closing became necessary.

In addition, the front cover (not shown) used in conventional front loading devices to prevent the intrusion of debris, etc. has a tape force setting - the tape cassette comes into contact with the front door when loading and unloading. It was difficult to insert the cassette, and both sides were damaged or dirty.

Therefore, the present invention has a structure in which a tape cassette having an opening/closing lid and a slider is automatically moved, and the slider is opened and closed during the movement, and the front door is eliminated to prevent dirt and dust from entering, making it easy to insert the tape cassette. It was designed so that it could be done.

Means for solving the problems and the technical means of the present invention for solving the above-mentioned problems include a tray for slidably and rotatably holding a cassette holder spatula, and a tape cassette from a first position to a second position a mechanism for moving the tray and the cassette holder relative to each other during a process of transferring and displacing the tray and the cassette holder between the first position and the second position; By rotating the cassette holder relative to the tray at the final stage of the displacement process, that is, rotating the cassette holder at the final stage of displacement, the cassette holder is tilted upward and protrudes from the front of the device, and the tape cassette can be easily inserted.

In addition, by moving the tray and cassette holder relative to each other, the tray can be used as a tape cassette after stopping the movement of the cassette holder holding a part of the slider of the tape cassette.
The slider can be smoothly opened and closed by moving the slider.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the accompanying drawings. In FIG. 9, a cassette holder 5 stores and holds the tape cassette 47 shown in FIG. This cassette holder 5 has guide pins 33, 38, 37 on the outside and a pin 45 on the inside on the left side, and has guide pins 4B, 50° 51 on the outside and a pin 49 on the inside on the right side. ing. 1 in Figure 1 is the stay R for holding the cassette holder.
, 2 is similarly a stay L for holding the cassette holder, and is mounted parallel to the front stay 4 and gear mounting plate 1o.
Ru. (The combination of stay R1, stay L2, and front stay 4 is used as a tray.) The inside of this stay R1 has concave guide grooves 34 and 35° 36 shown in FIG. It has a concave guide groove (not shown) symmetrical to the guide groove R1. Then, the guide pins 37, 38, 50, 51 of the cassette holder 5 are inserted into the guide grooves 36, 36 of the stay R1 and the guide grooves (not shown) of the stay L2.
are each held slidably.

27 is an angle L, and a guide rail 3o having a V-groove 65 facing the V-groove 31 of the stay L2 is fixed inside. Two steel balls (not shown) are rotatably held by a steel ball holding plate (not shown) and arranged between the V groove of the guide rail 3o and the V groove 31. The stay R1 also has a V-groove (not shown), and two steel balls (not shown) are placed between the guide rails (not shown) fixed to the angle R and have a V-groove (not shown). Stay R1 and stay L2 are rotatably held and arranged on a ball holding plate (not shown).
can be moved smoothly in the front and rear directions.

A rack 24 is held at the rear of the upper part of the stay L2, and this rack 24 has a cam surface 26 at one end and is slidable in the front and back direction on the stay L2.
The rear rack 25 of 4 and the gear 15 are engaged with each other.

A spring hook pin 56 is fixed to the gear 15, and 14 tension springs 14 are attached between the pin 56 and the spring hook portion of the gear mounting plate 10, so that the gear 16 is rotated counterclockwise. Rotate and move the rack 24 forward (arrow 2 directions)
Normally, the rack 24 is stopped at the position where it comes into contact with the stopper 81 shown in FIG. 2.

A pulley 18 is attached to the motor 20, and a belt 19 is placed between the pulleys 20 to transmit the rotation of the motor 20 to the pulley 20. The pulley 17 has a gear 58 and a gear 21, and the gear 21 has a small gear (not shown) and a gear 22.
Further, a small gear 59 meshes with the rack 24 on the gear 22, and the rotation of the motor 2o is reduced in speed and transmitted to the small gear 59.

Reference numeral 31 is a D-shaped shaft which is held and rotatably attached to angle L27 and angle R6.

Also, 13 is a lever and the leaf spring 12 is attached to the screw 60.61 on the top surface.
The hole passing through the shaft 31 is D-shaped and moves in the same way as the shaft 31.

The lever 28 also has a D-shaped hole, moves in the same way as the shaft 31, has a protrusion 29 at one end, a stopper 62 and a tension spring 27 at the other end, and the stopper 62 is located within the long arc-shaped 63 of the angle L27. It passes through and stops in contact with one end of the elongated hole 63.

On the other hand, 84 shown in FIG. 10 is a stopper, which is biased by a spring on the side surface 85 of the guide groove 31 of the stay L2 and is slidably attached. This stopper 84 is
By moving simultaneously with 2 and abutting against the circumferential surface of the shaft 31, the positions of the guide groove 34 and the groove 85 are aligned as shown in FIG. 11, so that the guide pin 33 of the cassette holder 6 can pass through. The stay R1 is also attached symmetrically.

(Not shown) A switch 8 in FIG. 1 is attached to the angle R6 at a position where it abuts the protrusion 32 of the stay L1, and a switch 23 is attached at the angle L27 at a position where it abuts the cam part 26 of the rack 24. ing.

Reference numerals 43 and 44 denote cassette discharge plates attached to the stay R2 and the stay L1, respectively.

A stopper 7 is attached between the angle L27 and the angle 6, and the angle L27 and the angle R6 are respectively attached to the mechanical chassis 64 with screws (not shown).

Reference numeral 42 shown in FIG. 3 is a cassette pressing plate for pressing the rear part of the tape cassette with an appropriate pressure, and a part of the plate 42 protrudes from the front stay 4 from within the front stay 4, and the rear part is pressed by a spring 41.

Reference numeral 11 denotes a stopper, and a positioning pin 48.6 is used to position the cassette holder when it moves to a position where it comes into contact with the end surface 66 of the cassette holder 5, and when the tape cassette 47 is installed.
6 are arranged on the mechanical chassis 64, respectively.

Next, the tape cassette used in this cassette loading device will be explained.

In Fig. 6, 47 is a tape cassette for storing tape, and an opening/closing lid 67 is attached to the front part, and a slider 68 to close the reel entry hole 721L and 72b'i 68 is attached to the bottom surface so that it can be slid back and forth, making it completely airtight. It has a structure.

When the slider 68 is closed, a notch 70 having elasticity in the vertical direction of the tape cassette 47 shown in FIG. Oh, this slider 68
To open it, press the notch 70 to release the lock and move the slider backward. At this time, the notch 70 enters the hole 83 of the tape cassette 47 and is locked again, and the holes 72J and 72b of the slider 68 and the holes 73a and 73b of the tape cassette are aligned with each other, and a reel base entry hole appears. To return this slider to its original position, use the notch 70.
When you press to release the lock, the slider returns to its original position due to the force of a spring (not shown) that closes it.

Further, the opening/closing lid 67 is structured so that it cannot be opened unless the slider 68 is moved backward as shown in FIG. When opening this opening/closing lid 67, it can be opened by moving the slider 68 backward and then rotating it.
Further, when the opening/closing lid 67 is closed, a spring is provided to close the opening/closing lid 67, and the spring allows the opening/closing lid 67 to return to its original position naturally.

Next, the operation of the configuration of this embodiment will be explained. First, as shown in Fig. 2, insert the tape cassette 47 into the cassette holder 5 and turn on the start switch (not shown).
When the motor 20 is turned, the motor 20 starts rotating clockwise, and the rotation is transmitted to the small gear 59, causing the rack 24 to move rearward. At the same time, stay R1゜stay L2. Front stay 4. Panel 3
．． The cassette holder 5 also moves.

When the cassette holder 5 moves, the upper surface of the cassette holder comes into contact with the stopper as shown in FIG.
It rotates around the guide pin 38.50'ii and becomes horizontal. When the cassette holder 5 is moved further, the pin 46 is attached to the cassette holder 5. 49 is the long hole 78, 8 of the lever 13
0 to engage. Then, the tip 66 of the cassette holder 5 comes into contact with the end surface 39 of the stopper 11 and stops. However, the stay R1 and the stay L2 are such that even after the cassette holder stops, the cassette pressing plate 42 pushes the rear surface of the tape cassette 47, and after the cassette holder 47 contacts the notch 70 and unlocks the slider 68, the cassette holder 5 The notches 52 and 53 abut against the contact parts 12L and 71b of the slider 68, and the movement of the slider 68 is stopped.

The tape cassette 47 is pushed to a position where it comes into contact with the rear surface of the slider 68 shown in FIG.
1 and stay R2 stop.

At this time, the collar 84 shown in FIG. 10 moves in contact with the shaft 31, and the positions of the guide groove 34 and the groove 85 are aligned as shown in FIG. 11. and the guide pin 37 of the cassette holder 5. 38. 50.51 is the upper part of the vertical part of the guide groove of the stay R2, and the guide groove 35.51 of the stay L1.
36. The guide pins 33 and 48 are located at the upper part of the vertical part, respectively, and the guide pins 33 and 48 are connected to the guide grooves (not shown) of the tray R2.
They are respectively located within the guide grooves 34 of the stay L1.

Furthermore, the motor 2o rotates to move the rack 24. At this time, the gear 16 is moved to the rack 24'lz by the tension spring 14.
A torque is working to return it to the direction, but the small gear 59
is to move the rack 24 on the stay R2 by applying a full torque greater than this.

When the rack 24 moves, the cam surface 26 of the rack 24 comes into contact with the protrusion 29 of the lever 28 and rotates the lever 28. At the same time, the shaft 31, lever 13, and cassette presser spring 12
Rotate.

When the lever 13 pushes down the pins 45.49i that are engaged with the left and right elongated holes 78.80, the guide pins of the guide vias 37, 38, 50.51+33.48 of the cassette holder 6 move into the vertical guide groove of the stay L2 (Fig. (not shown) and the vertical guide grooves 349 35, 36 of the stay R1, the cassette holder 5 descends horizontally. At this time, the lower surface of the opening/closing lid 67 of the tape cassette held in the cassette holder 5 comes into contact with the top surface 41 of the stopper 11 and the opening/closing lid 67 opens.
7 is mounted on the cassette positioning pin 46.66, the opening/closing lid 6 is completely opened.

On the other hand, the force set suppression spring 12 presses the front and rear sides of the tape cassette 47, and as shown in FIG.
．． 66 with moderate pressure.

Finally, the cam surface 26 of the rack 24 comes into contact with the switch 23, and then the rotation of the rack 21 stops and the tape cassette 4
7) - Easily insert the tape cassette into the cassette holder 6, press the switch i0H, it will automatically move horizontally, open the slider 68 in the middle of this, and open/close the lid 6 when it descends. We will explain the entire operation of unloading (cassette ejection) the 0th order cassette, which can be installed by opening the cassette.

First, the unload/industry switch (not shown)
When ioH occurs, the motor 20 rotates in reverse and the rack 24 is sent in the direction of arrow Z. At this time, since forces are always exerted in two directions by the gear 15, the rack 24 slides on the stay L2, and the stay L2 remains in a stopped state until the rack 24 comes into contact with the stopper 81.

During this operation, the protrusion of the lever 28 and the cam surface 26 are disengaged, and the tension spring 27 rotates the lever 28° and the lever 13 to hold the cassette holder 51! : Increase. (Position shown in FIG. 4) On the other hand, the opening/closing lid of the tape cassette 47 separates from the top surface 40 of the stopper 11 and closes.Next, after the cassette holder 5 has completely risen and the rack 24 has come into contact with the stopper 81. When the stay L2 and the like start horizontally moving forward, the shaft 31 comes into contact with the stopper 84 shown in FIG.
The groove 85 of the stopper 84 moves from the guide groove 34 to the position shown in FIG. do not have.

Further, the cassette holder 5 held by the stay L2 and the stay R1 moves and comes into contact with the stopper and stops, and then the cassette discharge plate presses the front surface of the opening/closing lid 67 of the tape cassette 5. At this time, the tip of the protrusion 79 of the cassette holder 5 comes into contact with the slider locking notch of the tape cassette 47 to release the lock and return the tape cassette 47 to its original position. (with the slider 68 closed) and the guide bins 50 and 38 of the cassette holder 6 come into contact with the horizontal end surfaces of the guide groove 5o of the stay H and the guide groove (not shown) of the stay L,
The tape cassette is rotated around the center of the abutting position and tilted upward as shown in FIG. 2, thereby making it easy to take out the tape cassette.

Finally, when the protrusion 32 shown in FIG. 1 comes into contact with the switch 8, the rotation of the motor is stopped and the operation is completed.

As described above, in this embodiment, since the cassette holder 6 has an upwardly protruding portion due to the rotation mechanism that rotates the cassette holder 5 by bringing it into contact with the stopper 7, the tape cassette 47 In addition, when the tray 1 moves, the cassette holder 6 comes into contact with the stopper 11 or the end and stops because the rotation of the motor 20 is driven by a drive device that moves the rack 24 through gears. By doing so, the tray 1 and the cassette holder move relative to each other, and the slider of the tape cassette can be automatically opened and closed.0 Effects of the Invention The present invention provides a tray and a tape cassette that slidably and rotatably hold the cassette holder. a mechanism that has a drive device for transporting the tray from the first position to the second position and that relatively moves the tray and the cassette holder during the process of transporting the tray and the cassette holder between the first position and the second position; Since it is equipped with a rotation mechanism that rotates the cassette holder relative to the tray at the end of the transfer process from one position to the first position, it is a simple mechanism that can open and close the slider of the tape cassette while the tray is moving. Become. Further, since the cassette holder projects upwardly from the front surface of the device, the tape cassette can be easily taken in and taken out.

On the other hand, since the panel on the front side of the tray closes the opening on the front side of the device, it also has the effect of preventing the intrusion of lumps, dirt, etc.

[Brief explanation of the drawing]

Fig. 3 is a main sectional view of the cassette loading device during horizontal movement; Fig. 4 is a main sectional view of the cassette loading device just before the cassette holder is lowered; The figure is a main sectional view of the cassette loading device with a tape cassette installed and scheduled times, Figure 6 is a perspective view of the tape cassette, Figure 7 is a perspective view of the tape cassette slider with the lid open, and Figure 8 is a perspective view of the tape cassette slider with the lid open. 9 is a perspective view of the cassette holder, FIGS. 10 and 11 are partial perspective views, and FIG. 12 is a sectional view showing a conventional cassette and loading device. 1... Stay L, 2... Stay R13
...Panel, 4...Front stay, 5.
...Cassette holder, 7.11...Stopper, 13...Lever, 34. 36, 36...Guide groove, 33y 37s 3
8e 48°50.51...Guide bin, 43
．． 44...Cassette ejection plate, 47...
tape cassette. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure qri・-ra・bu2 (、2,4聰聰ite 瓢---・toshi- Figure 1Q Figure 111! 1m Figure 12

Claims (1)

[Claims] a cassette holder that holds a tape cassette; a tray that slidably and rotatably holds the cassette holder;
a drive device for transporting the tray to displace the cassette holder between a first position where the tape cassette can be attached and removed and a second position where the tape cassette is engaged with a tape drive mechanism; 1 position and
A mechanism for relatively moving the tray and the cassette holder during the process of transferring and displacing between the second positions, and a mechanism that moves the tray and the cassette holder relatively, A cassette loading device comprising a rotation mechanism for rotating the cassette holder.