JPH08221856A - Recording and reproducing device - Google Patents

Abstract

PURPOSE: To obtain the recording and reproducing device equipped with a cas sette holder capable of easily ejecting a small cassette without shortening the depth of the cassette holder and also without detriment to a holding function for a large cassette even in the case where a difference between large and small cassettes in size is remarkably different. CONSTITUTION: The cassette holder is provided with a roller mechanism having rollers 26a and 27a capable of freely rotating forward and backward and bringing the upper surface of a tape cassette case into pressurized contact with the cassette holder. Then, the roller mechanism is capable of an operation of drawing and loading the tape cassette inserted from a cassette inserting hole 5 into the cassette holder in a standby position and an operation of ejecting out the tape cassette loaded in the cassette holder 7 in the standby position from the cassette inserting hole 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording / reproducing apparatus such as a VTR apparatus capable of using two kinds of tape cassettes having different sizes for one cassette insertion port.

[0002]

2. Description of the Related Art Heretofore, a so-called compatible type VTR device has been proposed in which large and small tape cassettes having different sizes can be loaded into a cassette holder from one cassette insertion port. In such a VTR device, in the state of the cassette insertion standby position in which large and small cassettes are loaded into the cassette holder from the cassette insertion port, the rear end of the cassette projects to the outside of the cassette insertion port. afterwards,
The cassette loaded in the cassette holder can be pulled into the loading position together with the cassette holder for recording and reproducing operations.

On the other hand, in the ejected state of the tape cassette (the same position as the cassette insertion standby position), it is necessary for the rear end of the large and small cassettes to project outside the cassette insertion port, which is the rear end of the cassette. You will need it to pick it up and pull it out.

[0004]

However, it is possible to use V cassettes in which large and small cassettes are remarkably different in size.
In the TR device, when a small cassette is loaded in the cassette holder, for example, at the time of ejecting the cassette, the rear end of the small cassette cannot be projected from the cassette insertion opening because the depth of the current cassette holder is long. Therefore, in order to project the rear end of the small cassette from the cassette insertion opening, it is necessary to design the depth of the cassette holder to be short. However, the function of the cassette holder requires that the cassette be held at the loading position and during its operation. Therefore, if the cassette holder becomes short, the function of holding the large cassette becomes difficult when the large cassette is used. is there.

Further, in a cassette computer (cassette componentment) in which large and small cassettes having different sizes can be loaded, a mechanism for designating and guiding the position in the width direction of the cassette and a cassette insertion position shifted from the proper position are inserted. At times, a mechanism for removing the cassette and a mechanism for removing the cassette when the cassette is inserted in the wrong direction such as sideways or upside down are generally required. Since it is advantageous in terms of use and mechanism to perform these mechanisms immediately after inserting the cassette, the positions of these mechanisms are arranged between the cassette insertion port and the cassette holder at the cassette insertion standby position. However, when these mechanisms are arranged, the depth of the cassette holder is further shortened by the depth of the mechanism, which makes it more difficult to hold the cassette when the large cassette is used as described above.

The present invention has been made in order to solve the above-mentioned problems, and the depth length of the cassette holder may be shortened even in the case of cassettes having large and small cassettes with significantly different sizes. It is an object of the present invention to provide a recording / reproducing apparatus provided with a cassette holder that can easily discharge a small cassette and does not impair the holding function of a large cassette.

[0007]

In order to achieve the above object, a recording / reproducing apparatus according to a first aspect of the present invention is a tape loading position in which a tape cassette inserted from a cassette insertion port is loaded in a cassette holder. In a recording / reproducing apparatus capable of performing an operation of moving to the eject position and an operation of moving to the eject position, the cassette holder is provided with a roller mechanism having a roller that presses the housing surface of the tape cassette, and the tape cassette inserted from the cassette insertion port is The operation is performed so that the tape cassette loaded in the cassette holder at the standby position is loaded and the tape cassette loaded in the cassette holder at the standby position is ejected to the outside of the cassette insertion port.

Further, in the recording / reproducing apparatus according to the second aspect, the drive source of the roller mechanism uses the drive source for performing the loading operation and the ejecting operation of the cassette holder.

Further, in the recording / reproducing apparatus according to the third aspect, the roller of the roller mechanism biases the upper surface of the housing of the tape cassette to the loading position at the loading position.

According to a fourth aspect of the present invention, in the recording / reproducing apparatus, the tape cassette is two or more kinds of tape cassettes of different sizes which are different in size and are inserted from one cassette insertion port.
It is mounted on a cassette holder so that recording and reproducing operations can be performed.

Further, the recording / reproducing apparatus according to claim 5 is
The roller diameter of the roller mechanism is such that the diameter of the roller that comes into pressure contact with the housing surface of the large cassette is slightly larger than the diameter of the roller that comes into pressure contact with the housing surface of the small cassette.

[0012]

In the recording / reproducing apparatus according to the first aspect of the present invention configured as described above, when the tape cassette is loaded from the cassette insertion port into the cassette holder at the standby position, the tape cassette is in pressure contact with its housing surface. When the tape cassette is pulled in by the rotation of the roller until it hits the depth end of the cassette holder, the tape cassette moves to the loading position together with the cassette holder.

Further, the tape cassette ejected from the loading position is ejected by a predetermined amount from the cassette holder at the standby position by the rotation of the roller of the roller mechanism,
The operation of projecting the rear end of the cassette to the outside of the cassette insertion port can be performed.

Further, in the recording / reproducing apparatus according to the second aspect,
As the drive source of the roller mechanism is the drive source for loading and ejecting the cassette holder,
The roller mechanism and the cassette holder can be driven by one driving source.

Further, in the recording / reproducing apparatus according to claim 3,
Since the roller mechanism biases the upper surface of the housing of the tape cassette to the loading position by the spring at the loading position, the position of the tape cassette at the loading position can be stably fixed.

According to the recording / reproducing apparatus of the fourth aspect,
Two or more types of tape cassettes of different sizes can be inserted from one cassette insertion port, and recording and reproducing operations of the large and small tape cassettes can be performed.

Further, the recording / reproducing apparatus according to claim 5 is
By using a roller diameter for the large cassette that is slightly larger than the roller diameter for the small cassette, it is possible to prevent the rollers for the small cassette from contacting the housing surface of the large cassette.

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a recording / reproducing apparatus according to the present invention will be described below with reference to the drawings by taking a VTR device as an example.

FIG. 1 shows an exploded perspective view of a cassette compartment (hereinafter referred to as a cassette) of the VTR device of this embodiment, and FIG. 2 shows an exploded perspective view of a cassette holder and a roller mechanism which is a main part of the present invention.

The entire cassette computer is indicated by reference numeral 1, and the arrow direction is the insertion direction of a tape cassette (not shown). On both sides of the chassis 2 that forms the bottom of the cassette computer 1, cassette casing frames 3 and 3 are erected, and bearing shafts 4a and 4a provided at the upper end portion of the cassette door 4 on the inlet side of the cassette casing 3 are connected to the cassette casing frames 3 and 3. It is swingably supported by the support portions 3a, 3a formed in the above. A front panel 6 having a cassette insertion opening 5 is arranged in front of the cassette door 4.

On the other hand, the cassette holder 7 is provided in the cassette computer 1.
Is arranged. A roller mechanism 8 is incorporated in the cassette holder 7.

The structures of the cassette holder 7 and the roller mechanism 8 will be described below. Since the roller mechanisms 8 are symmetrically provided on both sides of the cassette holder 7, only one roller mechanism will be described, and the other roller mechanism 8 will be denoted by the same reference numeral and description thereof will be omitted.

A fulcrum shaft pin 10 is formed on the side plate 9 standing upright from the side edge of the cassette holder 7, and the fulcrum part 11a of the holder lock member 11 is rotatably supported by the fulcrum shaft pin 10. . Further, a release claw 12 is formed on the rear side of the lower part of the holder lock member 11, and a lock pin 13 is formed on the front side opposite to the release claw 12, and further on the side plate 9 above the holder lock member 11. A lock claw 14 that engages and disengages with the lock piece 9a is formed. The holder lock member 11 configured as described above is provided with the lock pin 13
A holder lock spring 15 is stretched on a hooking portion 11a formed in the vicinity of and a hooking portion 9b formed on the side plate 9, and is spring-biased in the clockwise direction.

A pair of guide pins 16a and 16b are formed on the front and rear portions of the side plate 9 of the cassette holder 7, and the guide pins 16a and 16b are arranged horizontally from the outside of the holder lock member 11 to the holder slider 17. A pair of parallel guide grooves 17a and 17b are engaged. Then, a pair of guide shafts 18 are provided on the front and rear of the holder slider 17.
a and 18b are formed, and a rack portion 19 is formed on the holder slider 17. Further, a cutout recess 20 is formed at the lower edge on the front side of the holder slider 17.

A shaft pin 21 is provided above the rear guide pin 16b formed on the side plate 9 of the cassette holder 7, and a shaft hole 22a in the rear portion of the roller support arm 22 is rotatable around the shaft pin 21. Supported by. A pinion 23 and a drive pulley 24 coaxially integrated with the pinion 23 are supported by the shaft pin 21 from the outside of the roller support arm 22, and the pinion 23 meshes with the rack portion 19 of the holder slider 17. A roller shaft 25 is rotatably supported on the front portion of the roller support arm 22, and the roller shaft 25 traverses the upper portion of the cassette holder 7 described above and extends horizontally on the roller support arm 22 on the other side. Roller shaft 2
5 includes a roller 26 having two rubber members in the central portion.
a and 26a, and rollers 27a and 27a made of two rubber members having a roller diameter slightly larger than the rollers 26a and 26a are fixed to the outer portions thereof.

A roller pulley 28 is fixed to one outer end of the roller shaft 25 constructed as described above, and a toothed belt 29 is wound around the roller pulley 28 and the drive pulley 24. Here, the roller support arm 22 has a hooking portion 22.
a in place of a and the holder slider 17, the cassette pressure spring 30
The roller shaft 25 together with the roller support arm 22.
Is biased downward, that is, toward the cassette holder 7.

Thus, the pair of guide shafts 18a and 18b of the holder sliders 17 and 17 configured as described above.
Is a pair of loading guide grooves 31 formed by horizontal and vertical portions formed on the above-mentioned cassette frames 3 and 3.
a and 31b are engaged. Further, a stopper block 32 is provided on the back surface of the cassette frame 3, and the stopper block 32 is the release claw 1 of the holder lock member 11 described above.
It is in the position corresponding to 2. The guide shafts 18a and 18b penetrate through the loading guide grooves 31a and 31b, and the drive slider 3 arranged on the outer side surface of the cassette frame 3 and 3.
A pair of loading cam grooves 34 formed in 3, 33
a and 34b are engaged. A rack 35 is formed on the upper edge of the drive slider 33.

Racks 35, 3 of the drive sliders 33, 33
Reference numeral 5 indicates bearings 3a, 3a at the upper edges of the casecon frames 3 and 3.
The gears 37, 37 on both ends of the shaft 36 supported by the gears mesh with each other, and one gear 37 is connected to the motor 39 via a reduction gear 38.
The rotational driving force of is transmitted.

By the way, between the front panel 6 and the cassette holder 7 described above, a large cassette and a small cassette (not shown) are guided to prescribed positions of the cassette holder 7 or to prevent erroneous insertion of the cassette. The guide mechanism 40 of FIG.

Since the guide mechanism 40 is not an essential part of the present invention, it will be briefly described here. A pair of left and right small cassette slopes 42, 42 are provided on the frame surface 41 that is flush with the accommodating portion of the cassette holder 7, and a pair of left and right large cassette slopes 43, 43 are provided outside the small cassette slopes 42, 42. Cassette stoppers 44, 44 are provided on the rear side of the cassette slopes 42, 42 so as to be biased upward by spring means (not shown).

The space between the small cassette slopes 42, 42 and the cassette stoppers 44, 44 corresponds to the width of the small cassette, and therefore the small cassette inserted from the cassette insertion port 5 has the small cassette slopes 42, 42 and the cassette stopper. It is guided by 44, 44 and loaded in the cassette holder 7.

Further, the large cassette slopes 43, 43 and the cassette stoppers 44, 44 are diagonally interlockable with each other, and the entire width of the large cassette slopes 43, 43 matches the width of the large cassette. Therefore, when the large cassette inserted from the cassette insertion port 5 is pushed in by both large cassette slopes 43, 43, the cassette stoppers 44, 44 are also pushed in together and pass, and are loaded in the cassette holder 7. For example, when the small cassette is inserted from a position other than the specified one, the cassette stopper 4
4 and the insertion of the cassette is blocked.

Next, the operation of the VTR device according to the present invention will be described with reference to FIGS. FIG. 3 is a side view of the cassette holder 7 and the roller mechanism 8 when the cassette holder 7 is in the cassette insertion standby position, that is, the cassette holder 7 and the roller mechanism 8 are most retracted toward the front panel 6 side. The drive slider 33 is omitted.

When the cassette holder 7 is in the cassette insertion standby position, the release claw 12 of the holder lock member 11 is rotated counterclockwise about the fulcrum shaft pin 10 by pressing the release claw 12 by the stopper block 32 provided on the cassette frame 3. Further, the lock pin 13 contacts the rear end of the stopper block 32, the lock claw 14 engages with the lock piece 9a of the cassette holder 7, and the holder lock member 11 is located on the front panel 6 side with respect to the cassette holder 7. Movement to is locked.

Now, when the large cassette 45 shown by the phantom line is inserted from the cassette insertion port 5 from the state shown in FIG. 3, the large cassette 45 is guided by a guide mechanism (not shown in the drawing), and is moved to the standby position. It is loaded in the cassette holder 7. At this time, in the large cassette 45, the top surface of the housing at the tip is fixed to the outside of the roller shaft 25 of the roller mechanism, and the two rollers 2 are biased downward by the cassette pressure spring 30.
It is pressed by 7a and 27a.

In the state shown in FIG. 3, when the small cassette 46 indicated by the phantom line is loaded from the cassette insertion port 5 into the cassette holder 7 at the standby position, the top surface of the casing at the tip of the small cassette 46 is a roller. The two rollers 26a, 26a, which are fixed to the inner side of the shaft 25 and have a slightly smaller roller diameter, are pressed against each other.

In the case of the large cassette 45, the rear end of the cassette loaded in the cassette insertion standby position of the cassette holder 7 largely projects from the cassette insertion opening 5,
In the case of the small cassette 46, it is in a state of slightly protruding from the cassette insertion opening 5 so that the cassette can be picked up with a finger.

Thus, when the large cassette 45 or the small cassette 46 loaded in the cassette holder 7 is loaded in the cassette holder 7 in the standby position, the cassette holder 7
A switch (not shown) provided on the drive circuit operates to drive the motor 39 of the cassette computer. That is, when the drive slider 33 is moved in the forward direction via the reduction gear 38, the gear 37, and the rack 35 by the drive of the motor 39, the guide shafts 18a, 18b are moved by the operation and the guide shafts 18a, 18b are loaded.
a along with the holder slider 1
7 advances along the guide pins 16a and 16b (see FIG. 3).
At the right).

By the movement of the holder slider 17, the drive pulley 24 rotates in the counterclockwise direction together with the pinion 23 meshing with the rack portion 19, and in conjunction with this, the roller pulley 28 also rotates counterclockwise via the toothed belt 29. Since it rotates in the rotating direction, the rollers 26a, 26a and 27a, 27a rotate in the same rotation direction together with the roller shaft 25, whereby the large cassette 45 causes the roller 27 to rotate.
It is drawn deeply into the cassette holder 7 by a and 27a, hits the stopper 7a, and stops. Further, the small cassette 46 is also attached to the cassette holder 7 by the rollers 26a and 26a.
It is pulled in deeply and hits the stopper 7a to stop. The operation state at this time is shown in FIG.

Since the rollers 27a, 27a for retracting the large cassette 45 described above have a slightly larger roller diameter than the rollers 26a, 26a for retracting the small cassette 46, during the retracting operation of the large cassette 45, The rollers 26a, 26a do not come into contact with the housing surface of the large cassette 45, and therefore, it is possible to avoid damage or stain on the label or the like attached to the housing surface of the large cassette 45.

Since only the holder slider 17 moves in the operating state of FIG. 4, the lock pin 13 of the holder lock member 11 engages with the notch 20 formed at the lower edge of the holder slider 17 and interlocks with this. The lock claw 14 is disengaged from the lock piece 9a. As a result, the holder slider 17 is locked and integrated with the cassette holder 7. Also,
In FIG. 4, the rear end of the large cassette 45 slightly projects to the outside of the cassette insertion port 5, but the rear end of the small cassette 46 is completely drawn into the cassette insertion port 5.

Thus, the holder slider 17 integrated with the cassette holder 7 moves horizontally along the loading guide grooves 31a and 31b of the cassette frame 3 together with the cassette as shown in FIG.
The release claw 12 of the holder lock member 11 separates from the stopper block 32, and then the cassette holder 7 moves in the vertical direction together with the holder slider 17 to reach the loading position and the cassette loading is completed. At this time, when the cassette is completely loaded, the upper surface of the cassette is spring-biased by the cassette pressure spring 30 and can be reliably held at the loading position.

On the other hand, the ejection operation of the cassette is performed as follows. First, by operating the eject button of the front panel 6, the motor 39 reversely rotates, the holder slider 17 moves up to the position shown in FIG. 5 together with the cassette holder 7, and then it horizontally retreats to the position shown in FIG. The holder 7 moves to the cassette insertion standby position. Here, since the release claw 12 of the holder lock member 11 abuts against the stopper block 32 and is pushed back, the holder lock member 1
The lock pin 13 of No. 1 is the cutout 2 of the holder slider 17.
The holder slider 17 is released from 0. After that, by the backward movement of the holder slider 17, the drive pulley 23 is rotated in the clockwise direction via the pinion 23 meshing with the rack portion 19, and the roller pulley 28 is moved from the drive pulley 23 via the toothed belt 29. Rotate clockwise. With this, large cassette 4
5, the rear end portion of the small cassette 46 can be largely discharged to the outside of the cassette insertion opening 5 by the rotation of the rollers 17a and 17a, and the small cassette 46 can discharge the rear end portion to the outside of the cassette insertion opening 5 by the rotation of the rollers 26a and 26a. Can be made.

As described above, the VTR device according to the present invention is provided with the roller mechanism for pulling in and ejecting the cassette with respect to the cassette holder 7, so that even if the size difference between the large and small cassettes is remarkably different, There is an advantage that the small cassette can be easily inserted and ejected without reducing the depth of the cassette holder 7 for the small cassette. Further, the function of holding the large cassette with respect to the cassette holder is not impaired.

The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications can be made without departing from the scope of the invention.

In the embodiment of the present invention, when the cassette holder 7 is loaded, the drive source and the drive source for rotating the roller mechanism can be driven by a single motor. Alternatively, a single motor arranged may be applied, or in addition, a capstan motor may be used as a drive source.

Further, the rollers 26a and 27a of the roller mechanism.
Adopts a method of pressing the cassette upper surface into the cassette upper surface and performing a cassette drawing operation and a discharging operation. Alternatively, the rollers 26a and 27a may be pressed against the lower surface of the cassette housing to drive the rollers. Good.

Further, in the embodiment, the case where two kinds of large and small cassettes can be loaded has been described, but the invention can be widely applied to a recording / reproducing apparatus which can load two or more kinds of cassettes.

Further, the rollers 26a, 26 of the roller mechanism 8 are
a and 27a, 27a are one roller shaft 25 in the embodiment.
However, the rollers 26a and 26a used in the case of the small cassette and the rollers 27a and 27a used in the case of the large cassette may be separately provided on one roller shaft.

In the embodiment as a recording / reproducing apparatus, VT
Although the example applied to the R device has been described, the present invention can also be applied to a recording / reproducing device for audio and the like.

[0051]

As described above, in the recording / reproducing apparatus according to the present invention, the tape cassette inserted from the cassette insertion port is pulled into the cassette holder at the standby position and loaded by the roller mechanism provided in the cassette holder. It is said that it is possible to accurately perform the cassette insertion and ejection operations by performing the operation of performing the operation and the operation of ejecting the tape cassette loaded in the cassette holder at the standby position to the cassette insertion opening. effective. Further, since the roller can naturally pull in the cassette when the cassette is inserted, there is an effect that there is no discomfort felt at the time of insertion and the operability is improved.

Since the drive source for the roller mechanism is the drive source for loading and ejecting the cassette holder, the roller mechanism and the cassette holder can be driven by one drive source. It is possible to simplify the circuit system and reduce the cost of the device.

Further, since the roller of the roller mechanism is biased by the spring from the upper surface of the housing of the tape cassette to the loading position at the loading position, the position of the tape cassette at the loading position can be stably fixed.

Further, since it is possible to insert two or more kinds of tape cassettes having different sizes from one cassette insertion port, even if the size difference between the large and small cassettes is remarkably different, especially for small cassettes. The small cassette can be easily inserted and ejected without shortening the depth of the cassette holder, and the function of holding the large cassette with respect to the cassette holder is not impaired.

Further, by using a roller diameter for the large cassette that is slightly larger than the roller diameter for the small cassette, it is possible to prevent the rollers for the small cassette from coming into contact with the housing surface of the large cassette. It is possible to avoid stain such as rabek on the upper surface of the cassette housing.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a cassette computer in a recording / reproducing apparatus of this example.

FIG. 2 is an exploded perspective view of a cassette holder and a roller mechanism.

FIG. 3 is a side view of a cassette ejected state.

FIG. 4 is a side view of the cassette retracted state.

FIG. 5 is a side view during the cassette loading operation.

[Explanation of symbols]

 1 CASECON 3 CASECON FRAME 5 Cassette Insertion Port 7 Cassette Holder 8 Roller Mechanism 11 Holder Locking Member 12 Release Claw 13 Lock Pin 15 Holder Lock Spring 16a, 16b Guide Pin 17 Holder Slider 18a, 18b Guide Shaft 19 Rack Part 20 Notch Part 22 Roller support arm 23 Pinion 24 Drive pulley 25 Roller shaft 26a, 27a Roller 28 Roller pulley 29 Toothed belt 30 Cassette pressure spring 32 Stopper block 39 Motor 40 Guide mechanism 45 Large cassette 46 Small cassette

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akihiro Uetake 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Inventor Katsuaki Ikema 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo No. Sony Co., Ltd. (72) Inventor Kazumi Suzuki 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Co. (72) Inventor Katsunori Takahashi 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Soni -Inside the corporation

Claims (6)

[Claims] 1. A recording / reproducing apparatus capable of performing an operation of moving a tape cassette inserted from a cassette insertion port to a loading position while being loaded in a cassette holder and an operation of moving the tape cassette to an eject position. A tape cassette inserted from the cassette insertion opening is pulled into the cassette holder at the standby position and loaded, and a roller mechanism having the roller mechanism at the standby position. A recording / reproducing apparatus characterized in that the tape cassette loaded in the cassette holder can be ejected out of the cassette insertion opening. 2. The recording / reproducing apparatus according to claim 1, wherein a drive source for the roller mechanism uses a drive source for performing a loading operation and an ejecting operation of the cassette holder. 3. A recording / reproducing apparatus according to claim 1, wherein the roller of the roller mechanism biases the upper surface of the housing of the tape cassette to the loading position at the loading position. 4. The tape cassette is a tape cassette of two or more types having different sizes inserted from one cassette insertion port, and is loaded in the cassette holder to perform recording and reproducing operations. The recording / reproducing apparatus according to item 1 or 2 or 3. 5. The recording / reproducing apparatus according to claim 4, wherein the roller of the roller mechanism has a roller diameter that comes into pressure contact with the housing surface of the large cassette slightly larger than a roller diameter that comes into contact with the housing surface of the small cassette. 6. The recording / reproducing apparatus according to claim 1, which is applied to a VTR apparatus.