JPH0359864A - Controller for tape travel of video cassette tape - Google Patents

Abstract

PURPOSE:To easily and speedily attain program searching by stopping a driving motor by means of the light emission for an optical sensor for driving motor control by a cassette tape-side light emitting part interlocking with the detection of a marker detection sensor in a cassette half inner-side part. CONSTITUTION:Light is emitted from the cassette tape-side light emitting part 17 interlocking with the detection of the marker 23 of the marker detection sensor 24 to the light-receiving parts 16a and 16b of the optical sensor for driving motor control. The operation of the driving motor is controlled and the travel of a tape 10 is stopped. Thus, the marker 23 is provided for the desired position of the magnetic tape 10, and the marker detection sensor 24 is provided for the cassette case of the cassette tape. Then, the cassette tape-side light-emitting part 17 interlocking with the marker detection sensor 24 is provided for a part where light is emitted to the light-receiving parts 16a and 16b of the optical sensors for driving motor control. Thus, the need of providing a circuit and the like is eliminated for a video cassette deck-side, and program searching can easily and speedily be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape running control mechanism for a video cassette tape, and in particular to a video cassette that can easily locate the beginning of the content recorded on a magnetic tape. The present invention relates to a tape running control mechanism for a tape.

[Prior Art] To explain the so-called cueing of a video cassette tape, in which playback is performed from a desired position on a video cassette tape, conventionally, a counter provided in a video cassette deck is used to set an address based on an a value to the contents of a video cassette tape. You can use these values to fast forward or rewind the tape and play back the contents of the tape, or you can play the contents of the tape as an image on the monitor and use the "Fast Forward" mode to display the screen on the monitor. The tape was fed while visually observing the screen, and when the desired screen was reproduced, the rotation of the tape was stopped and the tape was reproduced.

[Technical Problem of the Present Invention] However, all of these conventional methods for finding the beginning of a tape are complicated. , a video cassette with a built-in cue mechanism configured to record an address signal at the same time as recording on a tape, and when playing back, detects the address signal using the playback-only circuit and plays back the desired image. Detsuki was also developed.

However, video cassette decks configured to use such electrical means to locate the beginning of the tape had the disadvantages of a complicated mechanism and high production costs. .

Therefore, a technical object of the present invention is to easily and quickly locate the beginning of a video cassette tape without increasing production costs.

[Means for Solving the Problems] In order to solve such technical problems, in the present invention, transparent portions are provided at the start and end ends of the magnetic tape housed in the cassette half, and the video cassette deck is provided with transparent parts. A tape of a video cassette tape that detects the light-transmitting part by a drive motor control optical sensor consisting of a light emitting part and a light receiving part, and controls the operation of a drive motor installed in a video cassette deck to stop tape running. In the travel control G4 mechanism, a marker is provided at the start position of the recorded content on the magnetic tape, and a marker detection sensor capable of detecting the marker is provided on the inside of the cassette half, as well as an optical sensor for controlling the drive motor. A cassette tape side light emitting part is provided in a part that can emit light to the light receiving part of the cassette tape side, which emits light in conjunction with the detection of a marker by the marker detection sensor. A signal sound generating means is provided.

When the marker detection sensor detects the marker placed at the start position of the recording content, light is emitted from the light emitting part on the cassette tape side to the light receiving part of the optical sensor for controlling the drive motor,
The system is configured to control the operation of a drive motor installed in the video cassette deck to stop tape running and to activate the signal sound generating means to generate a signal sound.

[Embodiment] Hereinafter, a tape running control mechanism for a video cassette tape according to the present invention will be described in detail based on an embodiment shown in the accompanying drawings.

As shown in FIG. 2, in the tape running control mechanism 22 of the cassette tape according to the present embodiment, the starting end 21 and the ending end 20 of the magnetic tape 10 of the video cassette tape 18 loaded in the video cassette deck 15 are , a transparent part 12.13 consisting of a transparent leader tape is provided.

On the other hand, the video cassette deck 15 is provided with a drive motor control optical sensor 19 consisting of a light emitting section 17 and light receiving sections 16a and 16b. The light emitting section 17 constituting the optical sensor 19 for controlling the drive motor is inserted into the video cassette tape 18 and arranged at a position where it can emit light to the light receiving sections 16a and 16b. The light receiving sections 16a and 16b are provided at side portions of both lengthwise ends of the video cassette tape 18, respectively, and are arranged so as to be able to receive the light emitted from the light emitting section 17. There is.

Then, the user operates the operating section provided on the video cassette deck 15 as appropriate to operate the drive motor 14 in, for example, fast-forward mode, and transfers the magnetic tape IO to the supply reel 3.
8 to the take-up reel 39, and a light transmitting section 13 made of a transparent leader tape provided at the end 20 of the magnetic tape 10 detects the light emitted by the optical sensor 19 for controlling the drive motor. When the light passes through the light path 4Ob from the section 17 to the light receiving section 16b, passes through the light transmitting section 13, and reaches the light receiving section 16b, the light receiving section 16b detects the light emitted from the light emitting section 17 and activates the drive motor. Control optical sensor 1
9 sends an electric signal to the system control section built in the video cassette deck to the effect that the transparent section 13 has been detected. In this case, the system control section controls the drive motor 1
4 and stop the tape running.

Also, if the video cassette deck is equipped with a so-called auto-rewind mechanism.

The user operates the playback switch to move the magnetic tape 1 from the supply reel 38 to the take-up reel 39 in the playback mode.
0 is run, and the transparent part 13 of the terminal end 20 of the magnetic tape IO is run.
When the drive motor control optical sensor 19 detects
The system control circuit (not shown) is configured to temporarily stop the operation of the drive motor 14 and then immediately reversely rotate the drive motor 14 to wind the magnetic tape 10 onto the supply reel 38. ing.

The video cassette tape 1 used in the video cassette tape tape running amount W mechanism 22 according to the present embodiment is
8, four pieces of music and images corresponding to the four pieces of music are recorded in advance on the wound magnetic tape 10.

In the video cassette tape tape running control mechanism 22 according to this embodiment, as shown in FIG. At the start positions of each of the above four songs recorded on the magnetic tape 10 wound on the magnetic tape 39.

Four markers 23 each made of aluminum foil are attached to the inner surface of the magnetic tape 10. A marker detection optical sensor 24 is located near the tape guide 25 provided on the take-up reel 39 side of the cassette half 26 of the video cassette tape 18 and on the inside of the magnetic tape 10. is provided. In this embodiment, as shown in FIG. 3, the marker detection optical sensor 24 is composed of a reflective photoinstructor, and includes a light emitting section 29 and a light receiving section 30 inside.

As shown in FIG. 3, the marker 23 affixed to the start position of the famous song on the magnetic tape IO is
When passing the position in front of the marker detection optical sensor 24 as the light travels, the light emitted from the light emitting section 29 is
The marker 23 affixed to the inner surface of the magnetic tape IO is irradiated, and the light from the light emitting unit 29 that irradiates the marker 23 is reflected once and reaches the light receiving unit 30, and the marker detection optical sensor 24 detects the marker 23. It is configured so that it can be done.

Further, in the video cassette tape tape running control mechanism 22 according to the present embodiment, as shown in FIG. On the outside, the video cassette tape 18 has two cassette tape side light emitting parts 3.
5.36 is provided. That is, the side ribs 37 and 41 forming the frame of the cassette half 26 are located at the portions that can emit light to the two light receiving sections 16a and 16b forming the optical sensor 19 for controlling the drive motor provided on the video cassette deck 15. A cassette tape side light emitting section 35, 36 is provided on each of the cassette tapes.

The cassette tape side light emitting section 35, 36 has one end 91.
91 is the light emitting part 17 of the optical sensor 19 for controlling the drive motor.
The other end 9
2.92 is the light receiving part 16 of the drive motor control optical sensor 19
It consists of an optical fiber 56.56 disposed at a portion capable of emitting light with respect to a and 16b, and a liquid crystal shutter 93.93 provided at an intermediate portion of the optical fiber 56.56.

That is, in this embodiment, as shown in FIG. 1, the cassette tape side light emitting sections 35 and 36 emit light from the light emitting section F of the drive motor control optical sensor 19 provided on the video cassette deck side. , the above optical fiber 56.5
6, and by controlling the opening and closing of the optical path within the optical fiber 56° 56 using liquid crystal shutters 93 and 93.
The light receiving portions 16a and 16b are configured to emit light.

Since the light emitting section 17 provided on the bidet center deck side is configured to be lit at all times, the liquid crystal shutters 93 and 93 are normally in a closed state.
When this liquid crystal shutter 93.93 is in a closed state, the light emitting section 17 is moved from the light emitting section 35.3 on the cassette tape side.
6 is opened by an optical fiber 56.56,
The light is emitted to the light receiving sections 16a and 16b.

On one optical path 4Oa of the light emitted from the light emitting section 17 constituting the drive motor control optical sensor 19 provided on the bidet center deck 15, the side ribs 37 constituting the frame of the cassette half 26 Opening part 42
and an opening 43 are provided so that the light emitted from the light emitting section 17 reaches the light receiving section 16a. The cassette tape side light emitting section 35 is provided on the side of the aperture 42 provided in the side rib 37, and controls the drive motor provided on the video cassette deck 15 through the aperture 43. It is configured so that it can emit light to one of the light receiving sections 16a that constitutes the optical sensor 19.

On the other hand, the cassette half 26 of the video cassette tape 18 is on the optical path 40b from the light emitting section 17 constituting the drive motor control optical sensor 19 to the other light receiving section 156b.
An outer opening 47 and an inner opening 48 are provided in the side surface 49 , and the other cassette tape side light emitting section 36 is provided near the opening 48 . A tape guide 44 is provided on the inside of the opening 48, and a tape roller 45 is provided on the tape guide 44 at a position closer to the inside of the cassette half 26.

The magnetic tape 10 is wound around a tape guide 44 and a tape roller 4, and wound onto a supply reel 38. Furthermore, the tape guide 44 has
A tape retainer 46 is provided to prevent slack in the supply reel 38 of the magnetic tape IO, and one end of the tape retainer 46 is fixed to the tape guide 44.
The other end is slightly folded back and is in sliding contact with the tape roller 45, and is provided so as to be in pressure contact with the inner side surface of the wound magnetic tape 10. And this tape retainer 46 is
The other cassette tape side light emitting section 36 is made of a metallic material that can reflect light, and can emit light to this tape holder 46, and also has a part where the light is reflected from the tape holder 46 and reaches the other light receiving section 16b. installed.

Then, as shown in FIG. 4, the video cassette tape 18
An input section 32 and a display section 33 are provided on the back surface 31 of the magnetic tape 10 to allow desired recording contents to be arbitrarily designated from among the plurality of recording contents recorded on the magnetic tape 10. The input section 32 is provided with a display (track number) corresponding to each recorded content. It consists of a select switch 34 consisting of four button switches corresponding to the number of recorded contents (four songs).

It is configured so that each of the four pieces of music recorded on the magnetic tape 10 can be selected and the famous songs can be played back in an appropriate order. Moreover, the display section 33 is as follows.

Consists of 4 sections 57, each with 7 segments of LE
D, and the user operates the input section 32, which is set to 4 by the select switch 34 consisting of the above-mentioned push-pot switch, to play back one of the four songs recorded on the magnetic tape 10. If the order of the songs is appropriately determined, the numbers for displaying famous songs can be displayed in each section 57 in the determined order.

Further, as shown in FIG. 1, a control section 27 consisting of a microcomputer is provided in a region defined by the rib 50 adjacent to the take-off reel 39 and the supply reel 38. A power source section 28 made of a battery is provided at a corner provided at one end of the back surface of the cassette half 26 and defined by the rib 54 .

Further, in a region adjacent to the supply side reel 38 and defined by a rib 53 provided at the other end of the back surface of the cassette half 26, a marker detection sensor 24 or a drive motor control device is provided. A signal sound generating means 94 is provided which generates a signal sound in conjunction with the detection of the light transmitting portion 12.13 by the optical sensor 19.

That is, in this embodiment, the marker detection sensor 2
4 detects the marker 23 provided at the start position of the recorded content, or the optical sensor 1 for controlling the drive motor
9 detects the light-transmitting part 12.13 of the magnetic tape 10, the light-receiving part 16 of the drive motor control optical sensor 19 is transmitted from the cassette tape side light-emitting part 35.36 or the light-emitting part 17.
a.

16b, and controls the operation of the drive motor 14 built into the video cassette recorder 15 to stop tape running, and also activates the signal sound generating means 94 to emit a signal sound for playback and fast forwarding. Alternatively, the tape is configured to notify the user that the tape has stopped running from the rewinding state.

In addition, when the marker detection sensor 24 detects the marker 23 provided at the start position of the recorded content appropriately designated by the user in the input unit 32, the control unit 27 controls the cassette tape side. Light emitting part 35.36
From the light receiving parts 16a and 16b of the optical sensor for controlling the drive motor.
By emitting light, the operation of the drive motor 14 built into the video cassette deck 15 can be controlled to stop tape running and the signal sound generating means 94 can be activated.

Therefore, in the video cassette tape tape running control mechanism 22 according to this embodiment, the user can
At this point, the video cassette tape 18 on which the desired song to be recorded is specified is loaded into the video cassette deck 15, the tape is started running in fast forward mode, and when the specified song start position is reached, the marker is detected. When the marker 23 located at the start position of the specified song is detected by the marker 23, the control section 27 controls the operation of the drive motor 14 by causing the cassette tape side light emitting section 36 to emit light. Then, the running of the tape is stopped, and the signal sound generating means 94 is activated to generate a signal sound to inform the user that the specified start position of the song has been reached.

Then, when the user starts tape running in the playback mode to play the specified song, and the target is finished, the marker detection sensor 24 moves to the next start position of the specified song. Detecting the marker 23 provided at ,
Notify the user that the specified end position of the song has been reached.

In this way, after the user has appropriately played back the recorded music on the input section 32, when the light-transmitting section 13 provided at the end 20 of the magnetic tape IO is detected, the light-emitting section 17 to the light-receiving section 16b is detected. emit light to the video cassette deck 1
It controls the operation of the drive motor 14 installed in the motor 5, and also operates the signal sound generating means 94 to generate a signal sound.

That is, since the tape running control mechanism 22 of the video cassette tape according to this embodiment is provided with a so-called auto-rewind mechanism, when the end 20 of the magnetic tape is reached as described above, a signal sound is emitted. Generating means 94
At the same time as a signal sound is emitted, the magnetic tape 1O is automatically transferred to the @rewind mode by the auto-rewind mechanism, and the magnetic tape 10 is rewound.

Thereafter, when the drive motor control optical sensor 19 detects the light-transmitting part 12 provided at the starting end 21 of the magnetic tape IO, the light emitted from the light emitting part 17 of the drive motor control optical sensor 19 is received. 16a, the tape stops running, and the signal sound generating means 94 is activated to emit a signal sound to notify the user that the tape has stopped running and has reached the start position of the magnetic tape 10. It is something.

On the other hand, as shown in FIG. 5, in the video cassette tape 18 according to this embodiment, reels 38, 39
A transmission mechanism 68 consisting of a gear device is provided inside, and is connected to a tape drive shaft 7 provided on the video cassette deck.
It is configured to amplify the rotation of No. 3 and transmit it to the reels 38 and 39.

As shown in FIG. 5, the reels 38 and 39 installed in the video cassette tape 18 according to the present embodiment include a reel hub portion 61 having a cylindrical magnetic tape @ device 460;
It consists of a disc-shaped reel flange part 62 fixed almost horizontally to the upper end of a cylindrical magnetic tape winding part 60. The reel hub portion 61 is located at the inner side of the cassette half 26.
The reel flange portion 62 is provided with a protruding support portion 64 formed at the rotation center of the reel flange portion 62, and this support portion 64 is rotatably mounted on the cassette. It is rotatably supported within four portions 66 formed on the inner upper surface portion 65 of the half 26 .

Inside the magnetic tape winding portion 6° of the reel 38, 39,
Transmission mechanism 6 consisting of tape drive shaft housing 67 and gear device
8 is provided. The entire tape drive shaft storage section 67 is formed into a substantially cylindrical shape, and is provided with a flange portion 69 projecting outward from the lower end portion over the entire side surface portion.

On the other hand, a ring-shaped convex portion 72 is formed inward of the cassette half 26 on the circumference of the drive shaft insertion hole 71 provided in the back surface 70 of the cassette half 26, and the tape drive shaft 73, a flange portion 96 is rotatably placed on the convex portion 72 on the ring, and the tape drive shaft insertion hole 71 is inserted.
located within.

When the video cassette tape 18 is loaded, the tape drive shaft 73 is housed and fixed in the tape drive shaft storage part 67 whose tip end is placed in the tape drive shaft insertion hole 71, and the tape drive shaft 73 is rotated. is configured to transmit the information to the tape drive shaft storage section 67.

The transmission mechanism 68 is composed of a gear device as described above, and includes a driving rotation gear 74, a variable speed rotation gear 75, and a reel rotation gear 76.

The driving rotation gear 74 is fixed to the upper surface of the tape drive shaft storage section 67 which is formed into a cylindrical shape.

It is configured to rotate at the same speed as the tape drive shaft 73 via the tape drive shaft storage section 67 .

The speed change rotation gear 75 includes a support arm 79 fixed substantially horizontally to a support 78 erected on the inner lower surface 77 of the cassette half 26, and a shaft portion 80 erected substantially perpendicularly to the support arm 79. A transmission gear 8 fixed to this shaft portion 80
1, and a drive gear 82 fixed to the upper end of the transmission gear 81.
It consists of The speed change gear 81 is the driving rotary gear 7
It is formed to have a diameter smaller than that of 4, has a cylindrical shape as a whole, and is arranged so as to mesh with the driving rotation gear 74.

Further, as described above, the drive gear 82 is the transmission gear 8
1, and the same shaft portion 83 as the transmission gear 81.
It rotates around the transmission gear 81, and consists of a disc-shaped gear with a diameter larger than that of the transmission gear 81. The variable speed rotating gear 75 constituted by these gears 81 and 82 is
The S-movement gear 82 is configured as 4IIi so as to be interlocked with the drive rotation gear 74 and output rotation at a higher speed than the drive rotation gear 74 .

The reel rotation gear 76 is connected to the reel 38.39.
The drive gear 8 is fixed to the back surface of the rotation center portion 84 of the reel flange portion 62 that constitutes the reel flange portion 62, and is combined with the drive gear 82 that constitutes the speed change rotation gear 75 to form the speed change rotation gear 75.
It is arranged to rotate in conjunction with 2.

This reel rotating gear 76 is formed to have a larger diameter than the drive gear 82, and has a rotating shaft 85 protruding from its center.
hanging downwards. The rotating shaft 85 is rotatably inserted into a hole 86 provided at the center of rotation of the drive rotating gear 74 and a hole 87 provided in the upper surface of the tape drive shaft housing 67 .

Next, a case will be described in which the video cassette tape 18 according to this embodiment is loaded into a video cassette deck and, for example, fast-forwarding is performed.

First, when the fast forward button provided on the video cassette deck is pressed, the main brake of the reel stand 88 is released, the built-in drive motor is activated, the clutch pulley rotates clockwise, and the fast forward rewind idler 89 is activated. It is pressed onto the reel stand 88 on the take-up side, and the reel No. 88 on the take-up side is rotated at high speed. In this case, the tape drive shaft 73
transmits the clockwise rotation of the 88th take-up reel to the tape drive shaft accommodating portion 67, and the driving rotation gear 74 constituting the transmission mechanism 68 fixed to the tape drive shaft 73 is transmitted together with the tape drive shaft accommodating portion 67. Rotate at high speed. The rotation of the driving rotary gear 74 is transmitted to a speed change gear 81 constituting a speed change rotary gear 75 which is connected to the upper and lower IIX rotary rotary gears.

In this case, as described above, the speed change rotation gear 75 is formed to have a much smaller diameter than the drive rotation gear 74, so the rotation speed of the speed change rotation gear 75 is the same as that of the drive rotation gear 74.
The rotational speed is much higher than that of and,
A drive gear 82 fixed to the upper end of this speed change rotation gear 75
rotates at the same speed as the variable speed rotation gear 75, and the high speed rotation in the drive gear 82 is transmitted to the reel rotation gear 76 which is combined with the drive gear 82.

Since the reel rotation gear 76 is fixed to the rotation center portion 84, the high-speed rotation from the driving rotation gear 74 output in the drive gear 82 is transmitted to the reel flange portion 62 via the reel rotation gear 76. supplied to

As a result, the rotational driving force transmitted from the drive motor built into the video cassette deck to the reel stand 88 and tape drive shaft 73 via the fast forward/rewind idler 89 is as follows:
By passing through the transmission mechanism 68, it is much amplified and supplied to the reel 38.39, and as a result, the reel 38.39 rotates at a much higher speed than the rotational speed of the reel stand 88 and the tape drive shaft 73. , magnetic tape 10
It winds up at a higher speed.

The above four embodiments have been described using the video cassette tape 18 according to the present embodiment as an example to perform a fast forward operation, but the same applies to the case where a rewind operation is performed. When you press the rewind button provided on the deck, the main brake of the reel stand is released, the built-in drive motor is activated, the clutch pulley rotates counterclockwise, and the fast forward rewind idler is moved to the reel stand ( (supply side) and rotate the reel stand (supply side) counterclockwise at high speed.

In this case, similarly to the case described above, the rotational driving force on the reel 88 is amplified via the transmission mechanism 68 provided inside the reel 38.39 installed in the cassette half 26. The magnetic tape 10 is rewound and wound at high speed.

Next, using the video cassette tape tape running control mechanism according to this embodiment, four
An example will be explained in which only the second and fourth songs are played among the music of the song and the video corresponding to the famous song. Also, in this case,
The description will be made assuming that the magnetic tape 10 is completely wound up on the supply reel 38.

First, as shown in FIG. 4, the operator selects a song by pressing the select switch 34, which is a button switch that displays the second and fourth songs, on the input section 32 provided on the back surface 31 of the video cassette tape 18. The operation is performed to display on each section 57 of the display section 33 consisting of LEDs that the second and fourth songs will be played, and to operate the video cassette deck 15 loaded with the video cassette tape 18 in fast forward mode.

In this case, as a result of the song selection operation on the video cassette tape 18 side, the controller 27 built in the video cassette tape 18 causes the marker detection optical sensor 24 to
When the second marker 23 pasted on the magnetic tape 10 is detected, the cassette tape individual light emitting section 36 is made to emit light to control the operation of the drive motor 14, stopping the running of the magnetic tape 10, and the third marker 23 is detected. Marker 23 is detected by marker detection optical sensor 2
4 is detected, both the cassette tape side light emitting section 35 and the cassette tape side light emitting section 36 are made to emit light, and the operation of the drive motor is controlled to stop the running of the magnetic tape 10 and to stop the stopped state. It is configured to be maintained.

That is, the video cassette deck used in this example is equipped with a so-called auto-rewind mechanism.
This auto-rewind mechanism is such that when the light emitting section 17 on the video cassette deck side emits light to the light receiving section 16b in the fast forward mode of the video cassette deck, the running of the magnetic tape IO is stopped; When the light is emitted to the light receiving section 16b, it is configured to be rewound immediately after stopping.

Therefore, the second track has finished playing, and the third marker 2
3 (marker indicating the start position of the third song) is detected by the marker detection optical sensor 24 and the control unit 27 causes the cassette tape side light emitting unit 36 to emit light, the system built in the video cassette deck 15 The control unit controls the take-up reel 3 when the magnetic tape 10 is in the playback mode.
9, the magnetic tape is determined to be a signal indicating that the magnetic tape has been completely wound, and the magnetic tape is rewound immediately after tape running is stopped. Therefore, by causing the cassette tape side light emitting section 35 to emit light as well, it is assumed to the system control section of the video cassette tape system that the entire magnetic tape 1O is wound onto the supply side reel 38.
This is to stop the magnetic tape 10 from running.

Moreover, the control section 27 built into the video cassette 18 is
When the magnetic tape IO is in fast forward mode and the marker detection optical sensor 24 detects the fourth marker 23 (marker indicating the start position of the fourth track), the cassette tape side light emitting section 36 emits light and the magnetic tape 10 is configured to stop running.

Therefore, an operation to select the second and fourth songs is performed on the input section 32 of the video set tape 18,
Video cassette tape 18 is video cassette deck 15
loaded and operating in fast-forward mode,
When the marker detection optical sensor 24 detects the second marker 23 (marker indicating the start position of the second song) attached on the magnetic tape 10, the control unit 27 displays the liquid crystal display as shown in FIG. The optical fiber 5 is opened by opening the shutter 93.
6, an optical path is formed from the light emitting section 17 to the cassette tape side light emitting section 36, and light is emitted from the cassette tape side light emitting section 36 to the light receiving section 16b.

The light receiving section 16b provided on the video cassette deck 15 side receives the light emitted from the cassette tape side light emitting section 36, and the light receiving section 16b sends electricity to the system control section provided on the video cassette deck 5. Input the signal. The system control unit then stops the drive motor 14, and as a result, the magnetic tape 10 stops running.

The control section 27 also controls the cassette tape side light emitting section 36.
emits light and energizes the signal sound generating means 94 to operate the signal sound generating means 94 to generate a signal sound,
The user will be notified that fast forward mode has ended and tape running has stopped.
Notify that the file is ready for playback.

In this case, the operator can play the music and video of the second song by pressing the playback switch on the operating section provided on the video cassette deck to enter the playback mode.

After that, when the second song ends and the marker detection optical sensor 24 detects the third marker 23 (the marker provided at the start position of the third song) among the markers 23 affixed to the magnetic tape 10, As shown in FIG. wS7, the control section 27 first causes the cassette tape side light emitting section 36 to emit light. In this case, since the mode on the video cassette deck 15 side is currently the playback mode, the system control section of the video cassette deck 15 controls the take-up reel by the light emitted from the cassette tape side light emitting section 36 to the light receiving section 16b. 39, the magnetic tape 10 is determined to be a signal indicating that the magnetic tape 10 has been wound, and after stopping the running of the magnetic tape 10 by the auto-rewind mechanism, the system immediately attempts to shift to the rewind mode.

Therefore, the control section 27 controls the cassette tape side light emitting section 3.
At approximately the same time as the light emitting part 6, the other cassette tape side light emitting part 35 also emits light to the light receiving part lea, and the magnetic tape l
It is assumed that all of the magnetic tape O has been wound onto the supply reel 38, and the video cassette deck mode is set to stop mode, thereby stopping the running of the magnetic tape 10.

Further, in this case, the #11 unit 27 energizes the signal sound generating means 94 to activate the signal sound generating means 94 to generate a signal sound, thereby informing the user that the second song has ended and tape running has stopped. We will notify you that

Thereafter, the operator operates the operating section of the video cassette deck as appropriate, for example, by setting it to fast-forward mode, so that the third track is fast-forwarded, and the marker detection optical sensor 24 detects four of the markers affixed to the magnetic tape 10. th marker 23 (
When the marker placed at the start position of the fourth song is detected, the marker detection optical sensor 24 detects the second marker 23 (the marker placed at the start position of the second song). , as shown in FIG. 6, the control unit 27 operates the liquid crystal shutter 93 to open the optical fiber
The cassette tape side light emitting section 36 emits light to the light receiving section 16b provided on the video cassette deck side, thereby stopping the operation of the drive motor.
At the same time, the signal sound generating means 94 is activated to generate a signal sound to announce the stop of tape transport.

Then, at this stage, the operator can appropriately operate the operation section on the video cassette deck side to set the playback mode, thereby making it possible to play the music of the fourth track and the corresponding video on the monitor, etc. . After that, when the fourth song ends and the video cassette deck side light emitting section 17 detects the light transmitting section 13 provided at the end 20 of the magnetic tape IO, the video cassette deck side light emitting section 17 detects the light transmitting section 13 provided at the end 20 of the magnetic tape IO. The light emitted from the section 17 reaches the video cassette deck side light receiving section 16b, and the light receiving section 18b issues a predetermined signal to a system control section (not shown).

Activates the so-called auto-rewind mechanism.

Further, the light emitted from the video cassette deck side light emitting section 17 reaches the video cassette deck side light receiving section 16b, and the drive motor control optical sensor 19 detects the magnetic tape 10.
When detecting the transparent part 13 provided at the end 20 of the magnetic tape 10, the control section 27 activates the signal sound generating means 94 to emit a signal sound, and when the magnetic tape IO reaches the end position, the tape runs in the playback mode. will stop, and then announce that it will immediately switch to rewind mode.

That is, the system control section stops the operation of the drive motor 14 built into the video cassette deck 15, and immediately thereafter shifts to the rewind mode, reverses and reverses the rotation of the drive motor 14, and as a result, the magnetic The tape 10 is rewound to the supply tape 38, and when the video cassette deck side light emitting section 17 detects the light transmitting section 12 provided at the starting end 21 of the magnetic tape 10, the first As shown in the figure, the light emitted from the light emitting unit 17 reaches the light receiving unit lea, and the operation of the drive motor 14 is stopped via the system control unit, and the running of the magnetic tape 1O is stopped. return to the state of repatriation.

In this case, the control section 27 operates the signal sound generating means 94 to generate a signal sound to notify the user that the video cassette tape 18 has reached the tape start position.

Further, in this case, when the drive motor control optical sensor 19 detects the light-transmitting part 12 provided at the starting end 21 of the magnetic tape 10, the control section 27 activates the signal sound generating means 94 to generate a signal. A sound is emitted to notify the user that the rewinding of the magnetic tape 10 has been completed and that the magnetic tape 10 has reached the start position and stopped.

In the video cassette tape 18 used in the tape running control mechanism 22 of the video cassette tape according to the present embodiment, a transmission mechanism 68 consisting of a gear device is provided in the inner rollers 38 and 39 to drive the tape. Since it is configured to amplify the rotation of the shaft 73 and transmit it to the reels 38 and 39, when the video cassette deck is in fast forward mode or rewind mode, the reels 38 and 39 are Since it is possible to rotate the magnetic tape at high speed, in combination with the tape running control mechanism 22 of the video cassette tape according to this embodiment, it becomes possible to easily and quickly locate the beginning of the content recorded on the magnetic tape 10. .

Further, the video cassette tape 18 used in the video cassette tape tape running control mechanism 22 according to this embodiment
In this case, the marker 23 is detected by the marker detection sensor 24.
Since a signal sound generating means 94 is provided which generates a signal sound in conjunction with the detection of the light transmitting portion 12.13 of the magnetic tape IO by the optical sensor for controlling the drive motor, the user can listen to the specified song. The start position and end position of the specified song, as well as the end position of the magnetic tape 10 and the start position of the magnetic tape 10, can be confirmed by the beep, so the user can confirm the start position of the magnetic tape 10 of the video cassette tape 18. The driving condition can be recognized reliably and easily.

Further, the cassette tape side light emitting portions 35 and 38 of the video cassette tape 18 used in the video cassette tape tape running control mechanism 22 according to this embodiment are connected to the optical fiber 56.
The light emitting section 17 of the optical sensor 19 for controlling the drive motor is composed of a liquid crystal shutter 93 provided on this optical fiber.
Although the description has been made using an example in which light is emitted from the cassette tape side light emitting sections 35 and 36 using the light of For example, an LED may be used.

As in this embodiment, by using the optical fiber 56 and the liquid crystal shutter 93, the cassette tape side light emitting section 35 uses the light from the light emitting section 17 provided on the video cassette deck 15.
．． 36, it is possible to use less power than when using an LED, and it is possible to make the power supply section 28 smaller.

Furthermore, in the above embodiment, the auto rewind mechanism built into the video cassette deck operates only in the playback mode, but is not limited to the above embodiment, and may also operate in the fast forward mode. It is also possible to apply the tape running control W mechanism of the cassette tape according to the present embodiment even when the cassette tape is configured as follows. If the auto-rewind mechanism is configured to operate not only in the playback mode but also in the fast-forward mode, it is necessary to always cause both of the cassette tape side light emitting sections 35 and 36 to emit light.

Furthermore, in the above embodiment, the case where a marker made of aluminum foil was used as the marker 23 affixed to the magnetic tape IO was explained as an example, but it is also possible to affix silver paper. In addition to the markers attached to the tape drive shaft, holes may be provided in appropriate parts of the magnetic tape 10 to transmit light emitted from the optical sensor for marker detection. In this case, the marker detection light The sensor needs to be an optical sensor in which the light emitting part and the light receiving part are arranged on both sides of the magnetic tape 10, instead of being a reflective type optical sensor equipped with a light emitting part and a light receiving part as in the above embodiment. becomes.

In this embodiment, the video cassette tape 18
The explanation has been given using an example in which music and video are recorded in advance on a magnetic tape IO, and markers 23 are provided at the start positions of the six recorded songs, but the present invention is not limited to this one embodiment. It may also be a video cassette tape that includes a magnetic tape that is not recorded in advance.

In other words, when using a so-called blank video cassette tape in which nothing is recorded, the user can record the desired recorded content on the magnetic tape IO as appropriate, but the starting position of the recorded content cannot be changed. By attaching a removable marker to the tape drive control mechanism of the video cassette tape according to the present invention, it can be applied.

In addition, in this embodiment, the video cassette tape 18
The input unit 32 provided in the magnetic tape 10 has been described using as an example a case where the select switch 34 is constituted by four pushbutton switches each having a display corresponding to each recording content of the magnetic tape 10. The present invention is not limited to this example, and as shown in FIG. 9, the input section 32 may use a so-called numeric keypad composed of ten switches each numbered 0 to 9.

In addition, as shown in FIG. 1O, an input section 32, a display section 33
and an adapter 9 provided with a control section 27, a power supply section 28, etc.
5 and a video cassette tape main body 96 containing a reel wound with magnetic tape, constitute a video cassette tape 97, and the adapter 95 may be detachably formed. When a video cassette tape 97 is constituted by an adapter 95 containing a built-in section 32, a control section 27, etc., and a video cassette tape main body 96, unlike the case of the video cassette tape 18 that can be used in the embodiment described above, a large number of video cassette tapes can be used. When manufacturing the cassette tape 97, it is sufficient to manufacture a small amount of the adapter 95 equipped with the control section 27, the input section 32, etc., and a large amount of the video cassette tape main body 96. Since it is not necessary to create the section 32 and the like, it is possible to reduce the manufacturing cost of the video cassette tape 97.

In addition, in the video cassette tape 18 used in the video cassette tape tape running control mechanism according to this embodiment, an optical sensor 24 made of a reflective photoinstructor is used as the marker detection sensor 24, and the marker is optically detected. 23 has been described as an example, but the present invention is not limited to this embodiment. For example, a sensing coil or the like may be used for electrical detection.

[Effects of the Invention] As described above, in the video cassette/) tape tape running control mechanism according to the present invention, the desired position of the magnetic tape can be controlled by utilizing the tape running control mechanism provided on the video cassette deck side. The cassette case of the cassette tape is provided with a marker, and the cassette case of the cassette tape is provided with a marker detection sensor, and a cassette tape side light emitting device linked to the marker detection sensor is provided at a portion that can emit light to the light receiving portion of the optical sensor for controlling the drive motor. It is possible to cue the contents recorded on a cassette tape without making any changes to the mechanism on the video cassette deck side.

Therefore, unlike the conventional cassette deck cueing mechanism, there is no need to provide a circuit or the like on the video cassette deck side, and the cueing of the video cassette tape can be done easily and quickly without increasing production costs.

Furthermore, the video cassette tape used in the tape running control mechanism of the video cassette tape according to the present invention is provided with a signal sound generating means that emits a signal sound in conjunction with the detection of a marker by the marker detection sensor. The user can confirm the start position of the desired recorded content and the end position of the recorded content by the beep, and can easily and reliably grasp the running state of the video cassette tape.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the structure of a video cassette used in the tape running control structure for a video cassette tape according to the present invention, and FIG. A conceptual diagram showing a tape running control mechanism provided in a video cassette deck used as a control mechanism, FIG. 3 is an embodiment of a marker detection sensor used in a tape running control mechanism of a video cassette tape according to the present invention. FIG. 4 is a side view showing an embodiment of the input section and display section provided on the back side of the video cassette tape used in the video cassette tape tape running control mechanism according to the present invention; FIG. 5 is a cross-sectional view showing an example of the internal structure of a video cassette tape reel used in a 4-meter video cassette tape tape running control structure according to the present invention, and FIG. 6 is a sectional view showing an example of the internal structure of a video cassette tape reel according to the present invention. FIG. 7 is a cross-sectional view showing a state in which the tape running control mechanism of the tape is used to locate the beginning of recorded contents on a cassette tape. FIG. 8 is a sectional view showing a state in which the recording contents of a cassette tape are being searched for, and a state in which the light emitting parts on both cassette tape sides are emitted and tape running is stopped; FIG. FIG. 3 is a cross-sectional view showing a state in which a tape is rewound using a tape running control W mechanism for a cassette tape. FIG. 9 is a side view showing another embodiment of the video cassette tape input section used in the video cassette tape tape running control mechanism according to the present invention, and FIG. 10 is a side view showing another embodiment of the video cassette tape input section according to the present invention. FIG. 3 is a perspective view showing another embodiment of the video cassette tape used in the travel control mechanism. IO...Magnetic tape 12.13...Transparent part 1
4... Drive motor 15... Video cassette deck 16... Light receiving section 17... Light emitting section 18...
・Video cassette tape 19...Optical sensor for drive motor control 20...Terminal end 21...Starting end z2...
Video cassette tape tape running control mechanism 23... Marker 24... Marker detection optical sensor 25... Tape guide 26... Cassette half 27... Control section 28... Power supply section 29...
- Light emitting section 30... Light receiving section 31... Back section 32... Input section 33... Display section 34... Select switch 35..., 36... Cassette tape side light emitting section 37.
...Side rib 38...Supply side reel 39...
- Winding side reel 40... optical path 41... side rib 42.
43... Opening part 44... Tape guide 5...
Tape roller 46-tape presser 7...outer opening 48...inner opening 9...side part O...rib 51...front part 2...side part 53.54 ... Rib 5 ... Insertion hole
56...Optical fiber 7...Division
60...Magnetic tape winding part 1...Reel hub part
62... Reel flange part 3... Inside
64... Support part 5... Inner upper surface part 66...
・Recessed portion 7... Tape drive shaft housing portion 8... Transmission mechanism 69... Flange portion O...
- Back part 71... Drive shaft insertion hole 2... Convex part 73... Tape drive shaft 4... Driving rotating gear 75... Variable speed rotating gear 6... Reel rotating gear 77... Inside Lower surface part 8... support
79... Support arm 0... Shaft part 81.
...Transmission gear 2...Drive gear 83...Shaft part 4...Rotation center part 85...Rotation shaft 86.87
... Hole 88 ... Reel stand 89 ... Fast forward rewind idler 91 ... One end 92 ... Other end 93 ...
Liquid crystal shutter 94...Signal sound generating means 95...
Adapter 96...Video cassette tape body 97 Video cassette tape

Claims (1)

[Scope of Claims] Translucent parts are provided at the starting and ending ends of the magnetic tape housed in the cassette half, and a light transmitting part is provided on the video cassette deck to control the drive motor, which is comprised of a light emitting part and a light receiving part. In a video cassette tape tape running control mechanism that detects a light beam and controls the operation of the drive motor built into the video cassette deck to stop tape running, a marker is provided at the start position of the recorded content on the magnetic tape. A marker detection sensor capable of detecting the marker is provided on the inner side of the cassette half, and a marker detection sensor is provided at a portion capable of emitting light to the light receiving section of the drive motor control optical sensor and is linked to the detection of the marker by the marker detection sensor. A light emitting section on the cassette tape side is provided to emit light when the marker detection sensor detects a marker, and a signal sound generating means is provided to emit a signal sound in conjunction with the detection of a marker by the marker detection sensor. By detecting the provided marker, light is emitted from the light emitting part on the cassette tape side to the light receiving part of the optical sensor for controlling the drive motor, and the operation of the drive motor built into the video cassette deck is controlled to stop the tape running and the above-mentioned A tape running control mechanism for a video cassette tape, characterized in that the mechanism is configured to emit a signal sound by activating a signal sound generating means.