JPH08315450A - Tape information reading device - Google Patents

Abstract

PURPOSE: To provide a highly reliable tape information reading device which ensures the contact between an electric contact terminal part of a tape cassette and a connector terminal. CONSTITUTION: A standard cassette 1 is composed of four electric contact terminal parts for a memory P-plate of a built-in semiconductor memory respectively indepently. A connector holder 70 for holding four connector terminals 72-75 corresponding to the above electric contact terminal parts is supported freely turnably around a holder shaft 69 by a connector main body. Then, this connecting holder 70 is held to be energized counterclockwise by a holder spring 71. Moreover, the connector holder 70 has a guide part 76 in an approximately triangular shape. Since this guide part 76 is brought into contact with a side surface part of the standard cassette 1, the connector holder is changed in its inclination in accordance with positioning variations of the cassette in a cassette loading process, thus always following the position of the cassette.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention reads information about a magnetic tape contained in a recording / reproducing apparatus for recording and reproducing signals using a tape cassette containing a magnetic tape, or information recorded on the magnetic tape. The present invention relates to a tape information reader.

[0002]

2. Description of the Related Art A tape medium used in a recording / reproducing apparatus has drawbacks that it is slower to access than a disk medium and that recorded contents are not immediately known. The slow access has been improved in recent years by realizing high-speed tape running. In addition, regarding the recorded content, the "Household Digital Video Tape Recorder" (hereinafter referred to as "DVC"), which was recently announced as a standard, stipulated that the tape cassette had a built-in semiconductor memory. Can now be listed. From the standard of the DVC cassette (DVC tape cassette), the portion related to the semiconductor memory will be described below with reference to the drawings.

FIG. 18 is a rear view of the DVC cassette. There are two types of DVC cassettes, a standard cassette that allows a maximum recording time of 4 hours and 30 minutes and a small cassette that can record for 1 hour. DV
Unlike the VHS, the C standard does not provide an adapter to ensure compatibility between the two tape cassettes. Therefore, the mechanism side must detect the types of these two tape cassettes and perform the necessary mechanism operation. FIG. 18 shows a layout when the two tape cassettes are mounted on a common mechanism. The standard cassette 1 has cassette positioning holes 2, 3, 4, and 5. 6 is a reel brake release hole for releasing the reel brake applied to the reel, and 7 and 8 are reel holes through which the reel table surface of the supply reel or the take-up reel is exposed. Reference numeral 9 denotes a start / end detection hole into which a light emitting diode for detecting the start / end of the built-in magnetic tape can be inserted. Reference numeral 10 is an erroneous erasure detection hole, and 11 is an opening portion into which a post or the like for drawing the magnetic tape out of the tape cassette is inserted. The small cassette 30 has the same configuration and has cassette positioning holes 12, 13, 14, 15, a reel brake release hole 16, reel holes 17, 18, a start / end detection hole 19,
An erroneous erasure detection hole 20 and an opening 21 are formed. Cassette positioning holes 12, 13, start / end detection hole 1
9 and the opening 21 are located at positions overlapping the respective functions of the standard cassette 1.

FIG. 19 shows B- of the standard cassette 1 of FIG.
It is B sectional drawing. Although FIG. 18 is a rear view, FIG.
As for 9, 1a is the upper half and 1b is the lower half. FIG.
FIG. About 1m from the back 1c of the tape cassette
A memory P plate 22 is formed at a position depressed by m, and gold-plated electrical contact terminal portions 22a having low electrical resistance are independently formed on the exposed surface, as shown in FIG. A slit-shaped partition wall 22b having a width of about 1 mm is formed between the electric contact terminal portions 22a. This partition wall 22b
Is provided to prevent contact failure due to fingerprints or the like caused by the user's hand touching the electrical contact terminal portion 22a.

The four electric contact terminal portions 22a are formed in the same shape not only in the standard cassette 1 but also in the small cassette 30 and the four electric contact terminal portions 23 are formed. The relative positional relationship between the electrical contact terminal portion 22a, the cassette positioning hole 4, and the erroneous erasure detection hole 10 is the same as the positional relationship between the small cassettes 30. This is because the connector for transmitting and receiving a signal by pressure contact with the electric contact terminal portion 22a and the erroneous erasure detection switch are integrated so that they can be moved to their respective positions and used.

Next, regarding the connector to be engaged with this, FIG. 23 and FIG. 2 in JP-A-6-349237.
4 will be described. Reference numeral 52 in FIG. 23 of the publication indicates a connector. It has a plurality of contact pieces 53 made of a conductive wire spring material and is fixed on a moving plate 56. A reference pin 57 and an erroneous erasure prevention detection switch 58 are formed on the moving plate 56. FIG. 2 of the publication
As shown in FIG. 4, the contact piece 53 of the connector 52
However, the reference pin 57 is positioned in the cassette positioning hole 4 and the detection pin 59 of the erroneous erasure prevention detection switch 58 is positioned in the erroneous erasure prevention hole 10 by engaging with the electrical contact terminal portion 22a of the standard cassette 1 described above.

As described above, with two tape cassettes of different sizes, this connector moves its position according to each tape cassette. At this time, the cassette positioning hole 4, the erroneous erasure detection hole 10 and the electrical contact terminal portion 22a
Have the same relative positional relationship, the reference pin 57 and the cassette positioning hole 4 can be moved by moving the moving plate 56 shown in FIG. 23 of the publication in accordance with the type of tape cassette.
By engaging (the cassette positioning hole 14 in the small cassette 30), the positional relationship between the tape cassette, the connector 52, and the erroneous erasure prevention detection switch 58 is secured with high accuracy. Therefore, the contact piece 53 is the electrical contact terminal portion 22.
Be sure to contact a.

[0008]

In DVC, it is certainly 2
Electrical contact terminal portions 22a, 23 of the types of tape cassettes,
Wrong erase detection holes 10 and 20, cassette positioning holes 4 and 14
It can be said that the relative accuracy of the tape cassette can be secured and a reliable contact can be obtained as described above because the relative positional relationship is the same. After positioning with the reference pin, the positions of the tape cassette and the mechanism are secured with a fairly high degree of accuracy, so there is no problem with each contact, but since the position of the tape cassette is not fixed before positioning is made, contact pieces are particularly Whether or not the electrical contact terminals of the tape cassette are properly engaged with each other becomes a serious problem. The tape cassette has four independent electric contact terminal portions 22a, and each electric contact terminal portion 2a
Since the width of 2a is narrow, it is not easy to surely guide the four contact pieces 53 composed of the coil springs to the respective independent electric contact terminal portions. And the point is that the contact piece 53 is the partition wall 2.
It is nothing but securing the relative position of the contact piece 53 and the tape cassette with high accuracy at the position where the interference with the 2b occurs. Once the contact pieces 53 are correctly guided to the respective electric contact terminal portions, there is no concern that the contact pieces 53 will be protected by the partition walls 22b on both sides of the contact pieces 53 to make contact with the wrong contact.

Interference between the contact piece 53 and the tape cassette begins at a position about 7 mm higher than the cassette mounting completion position. The engagement between the reference pin 57 and the cassette positioning hole is 4 mm or less from the cassette mounting completion position.
Therefore, it is impossible to reliably guide the contact piece 53 by the method of "certainly positioning with the positioning pin to ensure the contact accuracy between the tape cassette and the contact piece" in this conventional example. Since the regulation of 4 mm is determined by the standard, the conventional method cannot be applied to at least DVC.

The present invention solves the above problems,
It is an object of the present invention to provide a tape information reading device that reliably guides a contact piece to each independent electric contact terminal of a tape cassette in a system conforming to the DVC standard.

[0011]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a plurality of connector terminals for elastically urging an electric contact terminal portion formed in a part of a tape cassette. A connector holder that has a guide portion that holds and abuts against a part of the tape cassette, and a connector holder that is rotatably supported, and elastically moves the connector holder in one direction so that the guide portion abuts against a part of the tape cassette. And a connector body for urging.

[0012]

In the tape information reader having the above structure, the guide portion formed on a part of the connector holder holding the connector terminal is elastically biased against a part of the tape cassette guided and mounted in the cassette holder. Since they are in contact with each other, the position of the connector terminal can be moved according to the position of the tape cassette. In addition, although it is not possible to guide according to the standard by the position regulation with the positioning pin, the position regulation range can be freely set along the outer wall of the tape cassette, so the position of the connector terminal with respect to the tape cassette is secured at the start of the connector. can do.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the tape information reading device of the present invention will be described below with reference to the drawings. The basic functional configurations and arrangements of the large and small tape cassettes (standard cassette and small cassette) are the same as the conventional ones, and the description thereof will be omitted.
FIG. 1 shows the main mechanism of the recording / reproducing apparatus when the standard cassette 1 is mounted. FIG. 2 shows an exploded perspective view of main components.

First, the structure on the supply reel side will be described.
On the left side of FIG. 1, a slider 43 that is supported by two guide shafts 41 and 42 fixed to a substrate (not shown) and is slidable back and forth is configured. A reel drive arm 44 meshed with the slider 43 is rotatably supported by an arm shaft 45. As shown in FIG. 2, the reel drive arm 4
4, a cam pin 46 is formed at the tip portion, and a substantially trapezoidal cam 47 is fixed to the back surface of the central portion with a screw 50. 48
Is an S reel urging arm, which is rotatably supported by an S reel arm shaft 49. An S-reel motor arm 51 is rotatably supported on the S-reel arm shaft 49, and the S-reel urging arm 48 is rotated in both directions by an arm urging spring 52 of a screw coil spring. The S reel motor arm 51 is elastically biased. S
The reel motor arm 51 includes an S reel motor 53 on which a reel stand is mounted. S reel biasing arm 4
A cam shaft 54 is fixedly attached to the tip portion of 8 and a U-shape is provided in the central portion.
A U-shaped cam 55 is formed. FIG. 6 shows the relationship between the S reel motor arm 51, the S reel biasing arm 48, and the arm biasing spring 52 in the positional relationship of FIG. An arm urging spring 52 is formed between the S reel urging arm 48 and the S reel motor arm 51. A bent end 52a of 52,
52b is in contact. The S reel motor arm 51 is
It is controlled so as not to rotate further in the counterclockwise direction from the position shown in FIG. Therefore, the S reel urging arm 48 receives a urging force in the clockwise direction, but the cam shaft 54 abuts on the flat portion 47a of the cam 47 of the reel drive arm 44, and the pressure angle thereof is approximately 90 degrees. The reel drive arm 44 is held in the position, and its urging force does not act as the rotational force of the reel drive arm 44. Since the position of the S reel urging arm 48 is held, the S reel motor arm 51 is firmly brought into contact with the stopper of the substrate 40 by the urging force of the arm urging spring 52 to perform positioning.

The take-up reel side has almost the same structure, which will be described with reference to FIGS. 1 and 3. A T reel motor arm 56 having a T reel motor 57 mounted thereon is rotatably supported on a T reel arm shaft 59, which is a rotation supporting shaft of a T reel arm gear 58 meshed with the S reel biasing arm 48. ing. Further, the arm urging spring 60 elastically urges the T reel motor arm 56 with respect to the rotation of the T reel arm gear 58 in both directions. S reel biasing arm 48
The rotation angle of the T-reel arm gear 58 rotated through is set to be larger than the rotation angle of the T-reel motor arm 56. Therefore, in the state of FIG. After abutting against (not shown), the T-reel arm gear 58 further rotates, and spring positioning is performed by the difference in the rotation angle for firm positioning. The reaction force of this urging force is also received by the cam 47 of the reel drive arm 44 through the cam shaft 54. A slide shaft 61 is fixed to the tip of the T reel motor arm 56.
A memory drive arm 62 having an elongated hole portion 62a that engages with the slide shaft 61 is rotatably supported by the memory arm shaft 63. A connector body 65 rotatably supported by a connector shaft 64 provided at the other end of the memory drive arm 62 is provided with a detection pin 67 of an erroneous erasure detection switch 66 slidably up and down. A guide pin 68 is provided on the lower surface and a holder shaft 69 is provided on the side surface. Since the guide pin 68 is engaged with and guided by the guide groove 40a formed in the substrate 40, the attitude of the connector main body 65 is controlled by the connector shaft 64 and the guide pin 68. The connector holder 70 is rotatably supported by a holder shaft 69, and is urged to rotate counterclockwise by a holder spring 71.

Next, the tape information reading device (hereinafter referred to as a connector mechanism) will be described in detail. FIG.
[Fig. 4] is a front view of the standard cassette 1 at the final mounting position. FIG. 5 is a view taken in the direction of arrow B in FIG. 4, but the erroneous erasure detection section and the connector section are taken along the line C-C for easy understanding. The connector holder 70 holds four connector terminals 72, 73, 74 and 75 of torsion coil springs made of a material having conductivity and elasticity. One end of each of the connector terminals 72 to 75 is connected to the tape information recording / reproducing signal processing section through a flexible P board or the like. The other end is the electrical contact terminal portion 2 of the memory P plate 22 of the standard cassette 1.
The contact portions 72a to 75a contacting with 2a are formed in a substantially triangular shape having vertices as apexes, and are biased in the counterclockwise direction. Also,
The connector holder 70 has a protrusion-shaped guide portion 76 that can come into contact with the side surface portion 1d of the standard cassette 1. Since the connector holder 70 is biased counterclockwise by the holder spring 71 about the holder shaft 69, the guide portion 76
The urging force causes the tip end portion of the protrusion to abut the side surface portion 1d of the standard cassette 1 as shown in FIG. Further, a stopper portion 77 is formed below the connector holder 70 so that the stopper portion 77 can be engaged with the protruding portion 65a of the connector body 65. That is, when the tape cassette is not mounted, the connector holder 70 is held in the posture at the position where the stopper portion 77 is locked to the protrusion 65a of the connector body 65 by the counterclockwise urging force of the holder spring 71.

The operation of the mechanism having the above configuration will be described below. FIG. 1 is a diagram in which the standard cassette 1 is mounted, and the S reel motor 53, the T reel motor 57, and the connector body 65 are held at predetermined positions. From this state, when the eject signal for taking out the standard cassette 1 is received, the tray motor (not shown) is energized, and the tray (not shown) ejects the standard cassette 1 out of the apparatus, whereby the slider 43 connected to the drive system thereof. Is guided by the guide shafts 41 and 42 and moves in the D direction. First, the standard cassette 1 is vertically guided upward by almost the thickness of the cassette. At this time, the slider 43 stands still at the position shown in FIG. 1, and when the standard cassette 1 moves in the horizontal direction, the slider 43 is moved in the D direction in conjunction with its operation. Then, the reel drive arm 44 rotates counterclockwise (direction E) about the arm shaft 45.
The relationship between the reel drive arm 44 and the S reel urging arm 48 will be described with reference to FIGS. 8 and 9.

FIG. 8A is a view of the standard cassette 1 of FIG. When the reel drive arm 44 rotates counterclockwise and enters the state of FIG. 8B, the S reel urging arm 4
The cam shaft 54 of No. 8 is removed from the flat portion 47a of the cam 47,
The arm urging spring 5 is guided by the inclined portion 47b of the cam 47.
Rotate in a small clockwise direction by 2. Furthermore, FIG.
When the rotation advances to the state of (c), the reel drive arm 44
The cam pin 46 at the front end of the sigma moves into the flat cam portion 48a of the S reel urging arm 48. In FIG. 8D, the cam pin 46 starts to enter the U-cam 55. On the other hand, the cam shaft 54 is at a position where the guide on the inclined portion is almost completed. Until this time, the S-reel motor arm 51 is elastically fixed to the position of FIG. 1 by the arm biasing spring 52 as described with reference to FIG. 6, but in the state of FIG. As shown in FIG.
Since 52b is in contact with both ends of the S reel biasing arm 48 and the S reel motor arm 51, the elastic force does not work between them. Therefore, as long as there is no load against the spring force, both will rotate together. Eventually, Fig. 9 (a)
The cam pin 46 of the S reel biasing arm is the U cam 5
5, the rotation of the reel drive arm 44 is transmitted to the cam pin 46 and the U cam 55, and the S reel urging arm 48.
Rotate clockwise. When rotated to the state shown in FIG. 9B, the cam pin 46 is disengaged from the U-cam and cannot transmit the rotation. However, this time, the reel drive arm 44
The inclined portion 47c of the cam 47 contacts the cam shaft 54 of the S reel urging arm 48, and the rotation of the reel drive arm 44 is transmitted to the cam 47 and the cam shaft 54 to move the S reel urging arm 48 clockwise. Rotate to. From the state of FIG. 9B to the state of FIG. 9C, the rotation center of the S reel motor 53 reaches the reel center position of the small cassette 30, and the S reel motor arm 51 is different from that of the standard cassette 1. Similarly, the rotation is stopped by contacting a stopper portion (not shown) provided on the substrate 40. The T-reel motor arm 56 that is rotating in conjunction also stops at substantially the same timing. Therefore,
When the S-reel urging arm 48 is rotated by the cam 47, the load must be increased because the resultant force of the arm urging springs 52 and 60 must be resisted. However, since the pressure angle at the inclined portion 47c of the cam 47 is configured to be small, the rotational force of the reel drive arm 44 does not become a large load. Further, the reel drive arm rotates, and the cam shaft 54 moves the flat portion 47 of the cam 47 as shown in FIG.
When it is located at a, the rotation of the reel drive arm 44 ends and stops. Although the tray motor continues to rotate and the standard cassette 1 is guided to the outside of the apparatus, the connection between the tray motor and the slider 43 is cut off and the slider 43 does not transmit the driving force at this position. The positional relationship shown in FIG. 9D is the same as that when the small cassette 30 shown in FIG. 10 is completely attached. That is, while the standard cassette 1 is disengaged from the reel base by the tray motor and guided to the outside of the apparatus, the S reel motor 53 and the T reel motor 57 are connected to the small cassette 30.
Is positioned at the position. At this time, as in the case of the standard cassette 1, the reaction force of the arm urging springs 52 and 60 causes the cam shaft 54 to move.
Through the cam 47, but since the pressure angle in the flat portion 47a is close to 90 degrees, the S reel biasing arm 48,
The T-reel arm gear 58 holds its posture by itself.

Next, a connector mechanism that moves in conjunction with the S reel motor 53 and the T reel motor 57 will be described. FIG. 12 is a detailed view of the connector mechanism in the positional relationship of FIG. When the T-reel motor arm 56 rotates counterclockwise, the slide shaft 61 rotates the memory drive arm 62 clockwise through the slot 62a. Since the position and the posture of the connector body 65 are controlled by the connector shaft 64 and the guide pins 68, the memory drive arm 62 is guided along the guide groove 40a of the substrate 40 by the rotation. The T reel motor arm 56 is at the position shown in FIG.
1 position), the memory drive arm 62 rotates by approximately 90 degrees, and the connector main body 65 has its posture shown in FIG.
In the same posture as in FIG. 12, only the position is such that the electrical contact terminal portion 22a of the small cassette 30 is opposed to the connector terminals 72 to 75. The guide groove 40a is shown in FIG.
1. A horizontal portion is formed in the vicinity of the position where the guide pin 68 in FIG. 12 is positioned so that the positional accuracy of the connector main body 65 in the Y direction is maintained with high accuracy. The purpose of this is to minimize the variation in the displacement of the connector terminals 72 to 75. When the small cassette 30 is mounted and the electrical contact terminal portion 22a contacts the connector terminals 72 to 75, the connector terminals 72 to 75 are bent and the reaction force acts in the direction of separating the connector body from the small cassette 30. It also serves to rotate the memory drive arm 62 counterclockwise. However, since the reaction force is disposed in the center of the four connector terminals 72 to 75 by the guide pin 68, the reaction forces of the connector terminals cancel each other out and the connector body 65 is pushed and rotated in the Y direction. The power is not so great. The pushing force in the Y direction is generated by the guide pin 68 on the substrate 4.
Since it is engaged with the horizontal portion of the 0 guide groove 40a, it is received by this substrate 40. Even if the turning force of the connector main body 65, which has a small amount, turns counterclockwise of the memory drive arm 62, the long hole portion 62a and the slide shaft 6 are rotated.
Since the pressure angle of 1 is close to 90 degrees, this turning power is not transmitted to the T reel motor arm 56. This also applies to the position of the standard cassette 1 shown in FIG. Thus, similarly to the reel motor, the connector mechanism completes the movement from the position of the standard cassette 1 to the position of the small cassette 30. Therefore, at the position where the standard cassette 1 is completely taken out of the apparatus (so-called a state where the tray is exposed to the outside of the apparatus and the tape cassette can be loaded and unloaded), the reel motor and the connector mechanism are at the small cassette 30 position.

Even when the small cassette 30 is mounted on the tray and the cassette is guided into the apparatus by the tray motor, the drive mechanism is not transmitted to the moving mechanism of the reel motor, and the slider 43 is stationary at the position shown in FIG. There is. When the tray motor is energized without mounting the standard cassette 1 and the small cassette 30 and the tray mechanism is guided into the apparatus, the driving force is not transmitted to the slider as in the case of the small cassette 30. Held in position. On the contrary, when the standard cassette 1 is mounted on the tray and the cassette is guided into the apparatus, the driving force of the driving mechanism is transmitted to the slider 43, and the slider 43 slides in the direction of arrow F shown in FIG. As a result, the mechanism works in reverse to the above-described operation, the state of FIG. 10 shifts to the state of FIG. 1, and the standard cassette 1 can be mounted.

Thus, the standard cassette 1 and the small cassette 3
The operation of the connector mechanism when 0 is attached will be described. Since this operation is common to the standard cassette 1 and the small cassette 30, the standard cassette 1 and the small cassette 30 will be collectively referred to as a cassette in the following description. FIG.
4 shows the same cross section as FIG. 4 and shows a state in which the cassette is at a position 7 mm higher than the mounting completion position. In the state where the cassette is not attached, the connector terminals 72 to 75 rotate counterclockwise of the connector terminals 72 to 75 in the connector holder 70, and the terminal locking portions 72b to 75 are formed.
The position is regulated by being locked by b. In this state, when the cassette is lowered from above by the tray mechanism, there is a point where the connector terminals 72 to 75 interfere with the ridge of the cassette. That is the state of FIG. It is very important whether the connector terminals 72 to 75 are properly guided to the electrical contact terminal portion 22a of the cassette at this 7 mm position.

FIG. 15 shows the posture of the connector holder 70 with no cassette attached. As described above, the holder spring 71
It is urged counterclockwise by and is locked by a stopper to hold its position. In this state, consider that the cassette will drop from the top, but at this time with the cassette positioning pin (not shown) provided on the mechanism side with high accuracy with the cassette finally attached to the mechanism. It is positioned, but before positioning, it must be considered that the positional variation is very large because the position is regulated by the guide means by the tray. However, in the end, positioning pins must be inserted into the cassette positioning holes (2, 3, 4, 5 in the standard cassette 1 and 12, 13, 14, 15 in the small cassette 30) of the cassette. Considering the above, the allowable deviation amount of the cassette must be 1/2 or less of the diameter of the positioning hole. Therefore, in FIGS. 15 to 17, the operation will be described by verifying the state in which the cassette is displaced to the most T reel side.

First, the lower surface of the cassette is the connector holder 7
It abuts on the 0 guide portion 76. At this time, as shown in FIG. 15, the electrical contact terminal portion 22a and the connector terminal 72 are
The connector terminal 72 is not guided to the electrical contact terminal portion 22a as it is. However, when the cassette is further pushed down, the connector holder 70 is rotated clockwise by the cassette against the holder spring 71. When the connector holder 70 is rotated clockwise while the lower surface of the cassette slides on the inclined surface 76a of the guide portion 76, the state shown in FIG. 16 is reached. This position is shown in FIG.
This is the point where the connector terminals 72 to 75 indicated by and the cassette start interference. In FIG. 16, the connector terminal 72
Will interfere with the bottom of the cassette at the earliest. At this time, the connector terminal 72 is within the range of the electrical contact terminal portion 22a of the cassette, and even if the cassette descends as it is, the connector terminal 72
It can be seen that is reliably guided to the electric contact terminal portion 22a. Following the connector terminal 72, 73, 74, and 75 are naturally guided to the respective electrical contact terminal portions 22a. When the cassette is mounted in this manner, the guide portion 76 of the connector holder 70 is provided on the bottom surface and the side surface of the cassette.
Are contacted with each other, the attitude of the connector holder 70 is adjusted to the position of the cassette, and the positional relationship between the connector terminal 72 and the electrical contact terminal portion 22a of the cassette is corrected to mount the cassette. FIG. 17 shows a state in which the cassette is finally positioned by the positioning pin. Maximum T cassette
The state shown in FIG. 16 which has been shifted to the reel side (right side) is finally corrected to the position shown in FIG. Finally, the connector terminals 72 to 75 are the electric contact terminal portions 22a.
It is located almost in the center of and the mounting operation is completed.

Next, the case where the cassette is displaced to the most S reel side will be described with reference to FIG. In this state, the cassette does not contact the guide portion 76 of the connector holder 70. Therefore, the position of interference between the lower surface of the cassette and the connector terminal is reached in the standby state of FIG. It is the connector terminal 75 that interferes first. However, as can be seen from the figure, the connector terminal 75 is within the range of the electric contact terminal portion 22a, and the connector terminal 75 is not a problem.
You can see that you are being guided by 2a. Paradoxically, this is because the connector terminal is in the standby state so that the connector terminal can be surely guided to the electric contact terminal portion even when the cassette is most displaced to the S side in consideration of the positional deviation of the cassette in the left-right direction. This means that the inclination is set.

FIG. 5 is a view showing the state where the mounting is completed, but the connector terminals 72 to 75 are rotated clockwise from the state of FIG. 13 and are separated from the terminal locking portions 72b to 75b. Then, it can be seen that the contact portions 72a to 75a of the connector terminals 72 to 75 are elastically biased and contacted by the electric contact terminal portion 22a of the memory P board 22. In this way, when the cassette reaches the final mounting position and the connector terminals 72 to 75 contact the electrical contact terminal portion 22a of the cassette, the tape information recording / reproducing signal processing portion causes the memory P board 22
It becomes possible to read and write information to and from. For example,
The titles, recording dates, main contents of programs, broadcast stations, etc. of a plurality of programs recorded in the cassette can be viewed in a list. On the contrary, the information of the recorded program can be written in the memory, which enables advanced use of the cassette.

In the present embodiment, the mechanism corresponding to two tape cassettes having different sizes is taken up, but the present invention is not limited to this, and even a dedicated mechanism for a standard cassette and a small cassette alone may be used. It is possible to get the same effect.

[0027]

As described above, according to the tape information reading apparatus of the present invention, the connector body holding the connector terminals is rotatable and has the guide portion that abuts the side surface of the tape cassette. Therefore, even if there is a large variation in the mounting position of the tape cassette, the position of the connector body can be controlled according to the position of the tape cassette, and the electrical contact of the memory P board of the tape cassette in which the tape information is recorded regardless of the magnitude of the variation. The connector terminal can be reliably guided to the terminal portion to secure the contact. Furthermore, since the external shape of the tape cassette is used as a guide, the timing to control the position and orientation of the connector body can be set freely, and even if the interference point between the tape cassette and the connector terminal is high, it can be designed freely. Is possible.

[Brief description of drawings]

[Figure 1] Plan view of the mechanism when the standard cassette is installed

FIG. 2 is an exploded perspective view of a supply reel side main mechanical section.

FIG. 3 is an exploded perspective view of a main mechanism section on the take-up reel side.

FIG. 4 is a front view of the tape information reading device.

5 is a view on arrow B of FIG.

FIG. 6 is a partial sectional view of a reel motor crimping mechanism when a standard cassette is mounted.

FIG. 7 is a partial sectional view of the reel motor crimping mechanism when the reel motor crimping force is released.

FIG. 8 is a plan view of a reel motor rotation drive mechanism.

FIG. 9 is a plan view of a reel motor rotation drive mechanism.

FIG. 10 is a plan view of the mechanism when the small cassette is attached.

FIG. 11 is a plan view of a tape information reading device in a small cassette.

FIG. 12 is a plan view of a tape information reading device in a standard cassette

FIG. 13 is a side view of mounting the tape information reading device in the mounting process of the tape cassette.

FIG. 14 is a front view of the tape information reading device when the tape cassette is displaced to the most S reel side.

FIG. 15 is a front view of the tape information reading device when the tape cassette is most displaced to the T reel side.

FIG. 16 is a front view of the tape information reading device mounted when the tape cassette is displaced most to the T reel side.

FIG. 17 is a front view of the tape information reading device when the tape cassette is most displaced to the T reel side.

FIG. 18 is a rear view of the standard cassette and the small cassette.

19 is a sectional view taken along line BB of FIG.

FIG. 20 is a view on arrow A in FIG.

[Explanation of symbols]

 1 Standard Cassette 22 Memory P Plate 22a Electric Contact Terminal 30 Small Cassette 62 Memory Drive Arm 65 Connector Body 69 Holder Shaft 70 Connector Holder 71 Holder Spring 72-75 Connector Terminal 76 Guide

Claims (1)

[Claims] 1. A connector terminal for elastically urging an electric contact terminal portion formed on a part of a tape cassette, and a guide portion for holding a plurality of the connector terminals and contacting a part of the tape cassette. Tape information reading comprising a connector holder and a connector body that rotatably supports the connector holder and elastically biases the connector holder in one direction so that the guide portion abuts a part of the tape cassette. apparatus.