JPS6040996Y2 - Cassette loading device - Google Patents

Description

[Detailed Description of the Invention] The present invention is a cassette loading device that is most suitable for application to recording and reproducing devices such as tape recorders and VTRs,
In particular, a cassette is configured such that a cassette is mounted in a cassette mounting position using a cassette holder, and the tape inside the mounted cassette is pulled out and run to a tape running position outside the cassette to perform desired recording or playback. The present invention relates to a mounting device.

An example of this type of cassette mounting device is a data recorder using a conventional L cassette.

In this data recorder, the L cassette is inserted into the cassette holder diagonally from above, and then the cassette holder is pushed in by hand to mount the L cassette at the cassette mounting position.

Next, operate the push button switch to activate the plunger solenoid.

The plunger solenoid drives the tape pull-out mechanism, and a pair of pinch rollers pulls out the tape in the L cassette above and outward from the L cassette so that it is pressed against a pair of capstans.

However, this method of manually pushing the cassette holder and then operating the push button switch is a so-called two-action operation, which is less operable than a one-action operation.

Further, in a structure using a plunger solenoid, the parts cost of the plunger solenoid itself is high, and power consumption during operation is extremely large.

By the way, data recorders and the like are generally of the portable type and use a battery as a power source, and the life of the battery is extremely short due to the large power consumption of the plunger.

The present invention was devised to correct the above-mentioned deficiencies, and is capable of extremely easily loading a cassette and subsequently pulling out a tape by a single action of a single operating member. Another object of the present invention is to provide a cassette mounting device that does not require the use of a plunger solenoid or the like.

That is, the present invention includes a cassette holder that can freely move back and forth between the cassette insertion position and the cassette installation position in order to install the cassette in the cassette installation position, and a tape running system that moves the tape inside the cassette installed at the cassette installation position to the outside of the cassette. It has a tape drawer member that can freely reciprocate between a position inside the cassette and a position outside the cassette in order to pull it out to the cassette position. In the cassette mounting device, the cassette holder is configured to be pulled out to a tape running position, and the cassette holder is reciprocated to move the cassette holder from the cassette insertion position to the cassette mounting position by reciprocating from the backward movement position to the forward movement position. Install a cam plate,
A reciprocating slider is provided that moves the tape drawer member from the cassette inner position to the cassette outer position by reciprocating movement from the backward movement position to the forward movement position, and the slider moves back and forth between the backward movement position and the forward movement position. Provided with one freely movable operating member,
The operating member is provided with two pins, first and second, that selectively drive the cam plate and the slider, and the first forward stroke of the operating member from the return position After the cam plate is moved forward to the forward movement position by a pin, the first pin is provided on the cam plate during the subsequent forward movement stroke of the operating member to the forward movement position. The cassette mounting device is characterized in that the slider is configured to be moved forward to the forward movement position by the second pin while being moved along the relief notch.

Therefore, according to the present invention, by one action operation of one operating member, the cam plate is first moved forward (driven) to the forward position by the first pin, the cassette holder is moved to the cassette mounting position, and the cassette holder is moved to the cassette mounting position. Attach the cassette to the attachment position.

Subsequently, the slider is moved forward (driven) to the forward position by the second pin, the tape pull-out member is moved to the outside position of the cassette, and the tape inside the cassette is pulled out to the tape running position outside the cassette. be able to.

Moreover, at this time, after the first pin moves (drives) the cam plate forward to the forward position, when the second pin moves (drives) the slider forward to the forward position, the first pin is moved forward (drives) the cam plate to the forward position. Move it along the relief notch provided in the board, and
Although it has an extremely simple structure in which the cam plate is simply provided with a notch for escape from the pin, the cam plate and the slider can be separated from each other by the first pin and the second pin, and mechanically in good order. , can be selectively driven with precise timing.

Therefore, by one action operation of one operating member, the operation of loading the cassette into the cassette loading position and the subsequent operation of pulling out the tape to the tape running position outside the cassette can be performed independently of each other, in good order, and with accurate timing. can be done correctly.

An embodiment in which the present invention is applied to a data recorder using an L cassette will be described below with reference to the drawings.

First, 1 is El Cassette (hereinafter simply referred to as cassette)
2 is a cassette holder.

The cassette holder 2 is configured to be movable back and forth around a fulcrum 3, with an inclined cassette insertion position shown by a solid line in FIG. 1 and a vertical cassette insertion position shown by a chain line in FIG. It is configured to be able to freely reciprocate between the cassette mounting position and the cassette mounting position.

The booklet set holder 5 is biased back and forth from the cassette mounting position to the cassette insertion position by a return spring (not shown).

The cassette 1 is inserted diagonally from above into a cassette holder 2 at a cassette insertion position, and then vertically mounted by the cassette holder 2 to a cassette mounting position.

Next, 5 is a holder operation mechanism for moving the cassette holder 2 from the cassette insertion position to the set mounting position.

The holder operating mechanism 5 is comprised of a cam plate 6 that is slidable in the front and back direction, and a link 9 that is connected between the cam plate 6 and a pair of pins 7 and 8 provided on the cassette holder 2.

The upper part of the front end surface of the guide plate 6 is formed into a vertical surface 10 of a predetermined length, and the lower part thereof is an arcuate surface with a predetermined radius, which is a notch for relief of a pin 31 which is a first pin to be described later. 1
1.

Further, the cam plate 6 is slidably energized in conjunction with the cassette holder 2 from the chain line position (forward position) in FIG. 1 to the solid line position (return position).

Next, 13 is a tape drawer operation mechanism for pulling out the magnetic tape (hereinafter simply referred to as tape) 14 in the cassette 1 loaded in the cassette loading position to the upper and outer tape running position of the cassette 1. be.

The tape drawer operation mechanism 13 includes a slider 15 that is slidable in the vertical direction, and a slider 15 that is swingable in the vertical direction about a pair of fulcrums 16a and 16b. Pin 18a of
, 18b through a pair of elongated holes 19a, 19b, and a pair of tape pull-out members pivotally attached to the tips of the pair of pinch roller levers 20a, 20b. pinch roller 21
a, 21b, and is configured to be able to swing freely around a fulcrum 22,
A pin 23 is provided at one end, and an interlocking lever 26 is configured at the other end, which is engaged with a pin 24 provided on the slider 15 via an elongated hole 25.

The slider 15 is moved from the chain line position (forward position) in FIG. 2 to the solid line position (return position) by a return spring (not shown).
It is energized by sliding.

Next, reference numeral 28 is one operating member that continuously operates the two operating mechanisms 5 and 13.

This joint member 28 has an L-shape, and has a fulcrum 2.
9, it is configured to be able to swing up and down in the vertical direction, and an operating knob 30 is provided at one end, and a first pin 31 and a second pin 32 (hereinafter referred to as first and second) are provided at the other end. (described as one and the other) are provided.

One pin 31 is connected to the cam plate 6, and the other pin 32 is connected to the interlocking lever 26.

The operating member 28 is stably held by a toggle spring mechanism (not shown) at the position shown by the solid line in FIG. 1 (backward movement position) and at the position shown by the chain line in FIG. 2 (forward movement position).

By the way, in this cassette mounting device, as will be described later, the first forward stroke (hereinafter, the first forward stroke) of the forward movement range of the operating member 28
The holder operating mechanism 5 is operated with a subsequent stroke (hereinafter referred to as a second stroke), and the tape drawer operating mechanism 13 is operated with a subsequent return stroke (hereinafter referred to as a second stroke).
a switching mechanism configured to operate the operating member 28 from a state associated with the holder operating mechanism 5 to a state associated with the tape drawer operating mechanism 13 at the time of transition from the first stroke to the second stroke; 34 is constituted by a structure in which the direction of the vertical surface 10 and the circular arc surface 11 of the cam plate 6 changes.

Note that the radius of the circular arc surface 11 is configured to be equal to the rotation radius of the pin 32 that rotates about the fulcrum 29.

Further, numeral 37 in the figure is a microswitch constituting a power switch of the system control circuit, and its actuator 38 is operated by the pin 23.

Further, in the figure, 39a and 39b are a pair of capstans, and 40 is a magnetic head, which are provided at the tape running position.

Next, the operation of the cassette loading device described above will be explained.

First, to explain the cassette mounting operation, as shown in FIG. 1, after inserting the cassette 1 into the cassette holder 2 from diagonally above, the operation member 28 is moved from the solid line position to the chain line position by a first stroke S1 in the direction of the arrow a. (upward).

Then, the pins 31, 32 are rotated in the direction indicated by the arrow by the first stroke S1' from the solid line position in FIG. 1 to the chain line position.

However, at this time, the cam plate 6 is slid in the direction of arrow C by the rearward movement component of one pin 31, and the cam plate 6 is retreated from the solid line position to the chain line position.

As a result, the cassette holder 2 is moved through the link 9 by the arrow d.
The cassette holder 2 is rotated to the cassette mounting position shown by the chain line, and the cassette 1 therein is vertically mounted to the cassette mounting position.

At this time, the pin 31 moves from the lower end of the vertical surface 10 of the cam plate 6 to the arcuate surface 11 side.

The cam plate 6 is then locked in position at the chain line position.

Also, during this cassette mounting operation, a pair of opening/closing lids (not shown) provided on the left and right sides of the upper end of the cassette 1 are opened, and the tape 14 inside the cassette 1 can be pulled out upward and outward from the cassette 1. , a pair of pinch rollers 21
a and 21b are inserted inside the tape 14 in the cassette 1.

Next, as shown in FIG. 2, following the rotation of the first stroke S, the operating member 28 is similarly rotated in the direction of arrow a from the solid line position to the chain line position by a second stroke S2.

Then, following the rotation of the first stroke S1', the pins 31, 32 are rotated from the solid line position to the chain line position by a second stroke S2' in the direction indicated by the arrow.

However, at this time, the other pin 32 comes into contact with the pin 23 of the interlocking lever 26, and the downward moving component of this pin 32 rotates the interlocking lever 26 in the direction of arrow e, so that the interlocking lever 26 is moved as shown in the solid line. It is rotated from the position to the chain line position.

As a result, the slider 15 is slid in the direction of arrow f (upward) and raised from the solid line position to the chain line position.

As the slider 15 rises, the pair of pinch roller levers 20a and 20b move toward the arrows g and h, respectively.
The pair of pinch rollers 21a and 21b are moved from the position inside the cassette 1 indicated by the solid line to the position above and outside the cassette 1 indicated by the chain line.

As a result, the pair of pinch rollers 21a and 21b pull out the tape 14 from inside the cassette 1 upward and outward from the cassette 1 as indicated by the chain line.

This tape 14 is connected to the pair of pinch rollers 21a.
, 21b to a pair of capstans 39a, 39b, and contact the magnetic head 40.

At this time, one pin 31 contacts the arcuate surface 11 of the cam plate 6 and rotates along the arcuate surface 11.

Therefore, the cam plate 6 remains locked in position at the chain line position in FIG.

Also, at this time, just before the other pin 32 reaches the final position (lowest position) of the second stroke S2', the pin 23 of the interlocking lever 26 engages the actuator 38 of the microswitch 37.
to turn on this microswitch 37.

As a result, the system control circuit is energized and the data recorder enters the standby state.

That is, for example, when the leader tape comes into contact with the magnetic head 40, the transparency of the leader tape is detected by a sensor such as a photoelectric switch, the data recorder is switched to fast forward mode, and the take-up reel of the cassette 1 is switched. is rotated, stopped at the starting end of the tape 14, and the beginning of the tape 14 is automatically performed.

As described above, by one action operation of one operation member 28 in the direction of arrow a from the solid line position in FIG. 1 to the chain line position in FIG. The operation of pulling out the tape 14 outward can be performed in an orderly and accurate manner as a mechanical operation.

Finally, after an electrical confirmation operation, it enters a standby state.

Next, the cassette ejecting operation will be explained. First, as shown in FIG. 3, the operating member 28 is returned by the second stroke S2 in the direction of the arrow a'.

Then, the pins 31, 32 are also returned in the direction of the arrow b' by the second stroke S2'.

At this time, at the first point in time when the pins 31, 32 are returned in the direction of arrow b', the microswitch 37 is turned off, and the power to the system control circuit is released (cut off).

As the other pin 32 rotates in the direction of arrow b',
The slider 15 is returned in the direction of arrow f' and lowered from the solid line position to the chain line position.

Furthermore, in conjunction with this, a pair of pinch roller levers 20a,
20b are returned in the directions of arrows M and H', respectively, and the pair of pinch rollers 21a and 21b are returned to their positions within the cassette 1.

At this time, a take-up reel stand (none of which is shown) is rotationally driven in the tape winding direction by a retracting arm that is swung in conjunction with the descent (return movement) of the slider 15 in the direction of arrow f'. The tape 14, which has become slack outside the cassette 1, is taken up by the take-up reel inside the cassette 1 and pulled back into the cassette 1.

However, when the slider 15 moves upward (forward movement) in the direction of the arrow f, the retracting arm is swung; is not rotated in the tape feeding direction.

Next, as shown in FIG. 4, following the rotation of the second stroke S2, the operating member 28 is returned in the direction of the arrow a' by the second stroke S1.

The pins 31, 32 are then also returned by the first stroke S1' in the direction of the force indicated by the arrow b'.

At this time, one pin 31 moves from the upper end of the arcuate surface 11 of the cam plate 6 to the vertical surface 10 side, and as the pin 31 moves forward, the cam plate 6 is returned in the direction of arrow C' force.

In conjunction with this, the cassette holder 2 is returned in the direction of the arrow d', and the cassette 1 is ejected from the cassette mounting position to the cassette insertion position.

Above 1. One action in the direction of arrow a' from the solid line position in Figure 3 of the working member 28 to the position in Figure 4.
Therefore, first turn off the power to the system control circuit to prevent malfunction, and then turn off the tape 14 in cassette 1.
The pull-back operation of □ and the subsequent eject operation of cut 1 can be performed mechanically and accurately.

Although the embodiments have been described above, the present invention is not limited to the embodiments, and various effective modifications can be made based on the technical idea of the present invention.

As described above, the present invention is configured so that the loading of the cassette and the subsequent operation of pulling out the tape can be performed continuously by one action of one operating member, so the operation is extremely simple. It is very easy to use.

Moreover, since there is no need to use plunger solenoids or the like as in the past, it is extremely low cost and consumes little power, making it especially suitable for portable type recording/playback devices that use batteries as a power source. .

Moreover, according to the present invention, although the structure is extremely simple, one operation of one operation member allows the operation of loading the cassette into the cassette loading position and the subsequent operation of pulling out the tape to the tape running position outside the cassette. Because these operations can be performed independently of each other, in order, and at precise timing, for example, the tape may be damaged if the tape pull-out operation is unexpectedly started during the cassette loading operation. No malfunctions occur.

In addition, since the forward movement (drive) of the cassette holder and the forward movement (drive) of the tape drawer member can be performed separately from each other, the cassette holder can be stably stopped at the cassette installation position, and then the cassette holder or tape drawer member can be stably stopped. The next forward movement (drive) of the tape pull-out member can be performed without applying any unnecessary pressing force.

Therefore, the operation of the operating member does not gradually become heavier, and the operating member can be operated easily from beginning to end.In addition, there is no need to press the cassette holder or cassette unnecessarily during the tape drawer operation. There is no risk of damaging the cassette, and reliability, operability, and safety are extremely high.

[Brief explanation of the drawing]

The drawings show an embodiment in which the present invention is applied to a data recorder using an L cassette. Fig. 1 is a perspective view of the main parts explaining the cassette loading operation, and Fig. 2 is a tape drawer. FIG. 3 is a perspective view of the main part explaining the operation, FIG. 3 is a perspective view of the main part explaining the tape pull-back operation, and FIG. 4 is a perspective view of the main part explaining the cassette ejecting operation. In addition, in the symbols used in the drawings, 1...
・L cassette (cassette), 2... Cassette holder 6... Cam plate, 11... Arc surface (notch), 14... Magnetic tape ( tape), 15...slider, 21a+21b...
... Pinch roller (tape drawer member), 28...
...Operation member, 31...First pin, 32
...This is the second pin.

Claims (1)

[Scope of Claim for Utility Model Registration] A cassette holder that can freely move back and forth between the cassette insertion position and the cassette installation position in order to install the cassette in the cassette installation position, and a tape inside the cassette installed in the cassette installation position to be removed from the cassette. The cassette is installed in the cassette installation position by a cassette holder, and the tape in the installed cassette is In a cassette mounting device configured to pull out a tape to a tape running position outside the cassette, a reciprocating operation is performed in which the cassette holder is moved from the cassette insertion position to the cassette mounting position by forward movement from a backward movement position to a forward movement position. A movable cam plate is provided, and a reciprocating slider is provided for moving the tape drawer member from the inside position of the cassette to the outside position of the cassette by reciprocating movement from the backward movement position to the forward movement position. One operating member is provided that can freely reciprocate between a forward movement position, and this operating member is provided with two pins, a first and a second pin, that selectively drive the cam plate and the slider, and the operating member After the cam plate is moved forward to the forward position by the first pin in the first forward stroke of the member from the backward movement position, the subsequent movement of the operating member to the forward movement position The slider is configured to move the slider forward to the forward movement position by the second pin while moving the first pin along a relief notch provided in the cam plate during the forward stroke. A cassette loading device that is characterized by its unique features.