JPH0363986A - Tape travel control mechanism for video cassette tape - Google Patents

Abstract

PURPOSE:To easily and speedily execute the program search of a video cassette tape by providing a marker in the start position of contents recorded on a magnetic tape so as to be attached and detached, detecting the marker provided on the magnetic tape by a sensor for marker detection and stopping a driving motor. CONSTITUTION:The marker 23 is provided in the desired position of the magnetic tape 10 and on the other hand, the sensor 24 for marker detection is provided in the cassette case of a cassette tape 18. Then, in a part where light can be emitted to a light reception part 16 of an optical sensor 19 for driving motor control, cassette tape side light emission parts 35 and 36 are provided to be interlocked with the sensor 24 for marker detection. Accordingly, the program search can be executed to the recorded contents of the cassette tape 18 without applying any changes to a mechanism on a video cassette deck 15 side. The marker 23, which shows the start position of the recorded contents, is provided to be attached and detached to the magnetic tape 10. Thus, a user can freely provide the marker 23, which shows the start position of the recorded contents, by the user itself and the program search can be easily executed to the recorded contents.

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. There are 41 tape running control mechanisms for the 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, in the past, a counter provided in the video cassette deck was used to match numerical addresses to the contents of the video cassette tape. Let me decide.

Use the numbers to fast forward or rewind the tape, play back the tape's contents, or.

"Fast forward" by playing the tape contents as an image on the monitor
Depending on the mode, the tape was advanced while visually checking the monitor screen, and when the desired screen was reproduced, the rotation of the tape was stopped and the tape was reproduced.

[Solving the Technical Problems of the Present Invention] However, all of these conventional methods for starting the tape are complicated. .

A video cassette deck with a built-in cue mechanism configured to record an address signal at the same time as recording on a tape and play back a desired image by detecting the address signal using the playback-dedicated circuit described above. 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 mechanism, a marker is removably provided at the start position of recorded content on the magnetic tape, and the cassette half is provided with a marker detection sensor capable of detecting the marker, and the optical sensor for controlling the drive motor is provided with a marker detection sensor capable of detecting the marker. A cassette tape side light emitting part that emits light in conjunction with the detection of a marker by the marker detection sensor is provided in a part that can emit light to the light receiving part, and when the marker detection sensor detects the marker provided on the magnetic tape, The light emitting section on the cassette tape side emits light to the light receiving section of the optical sensor for controlling the drive motor to control the operation of the drive motor installed in the video cassette deck and stop the tape from running.

[Example] Hereinafter, a tape running control mechanism for a video cassette tape according to the present invention will be described in detail based on an example 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 either end of the video cassette tape 18 in the length direction, and are arranged so as to be able to receive the light emitted from the light emitting section 17. .

Then, the user operates the operation 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 10 to the supply reel 3.
The entire magnetic tape 10 is wound up from 8 to the take-up reel 39, and a light-transmitting part 13 made of a transparent leader tape provided at the terminal end 20 of the magnetic tape 10 serves as a light-emitting part of the optical sensor 19 for controlling the drive motor. 17 to the light receiving section 16b, passing through the light transmitting section 13 and reaching the light receiving section 16b, the light receiving section 16b detects the light emitted from the light emitting section 17 and controls the drive motor. 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.

If the video cassette deck is equipped with a so-called auto-rewind mechanism, the user operates the playback switch to run the magnetic tape 10 from the supply reel 38 to the take-up reel 39 in playback mode. When the drive motor control optical sensor 19 detects the transparent portion 13 at the end 20 of the magnetic tape 10, the system control circuit (not shown) temporarily stops the operation of the drive motor 14. Immediately after this, the drive motor 14 is reversely rotated and the magnetic tape 10 is wound onto the supply reel 38.

The video cassette tape 1 used in the video cassette tape tape running control mechanism 22 according to the present embodiment
8 is a so-called blank tape in which nothing is recorded on the wound magnetic tape 10. Therefore, the user can record desired contents on the magnetic tape 10, but in this embodiment, the case where four pieces of music and videos corresponding to the four pieces of music are recorded is taken as an example. Explain.

In this case, the user first places the removably formed first marker 23 on the magnetic tape as shown in FIG.
Paste it on the inside surface of O at the starting position where you want to record the first song. Then, the first song is recorded from that position, and when the recording of the first song is finished, the marker 23 of the second song is pasted at the end position of the first song and the second song is recorded. The th marker 23 is a marker that indicates the end position of the first song and also indicates the start position of the second song.

As shown in FIG. 3, this marker 23 consists of a rectangular aluminum foil 110 and an adhesive part 111 provided on its back surface, and its width is formed to be approximately the same as the width of the magnetic tape IO. This adhesive part 111 connects the magnetic tape 10.
can be attached to the inner surface of the magnetic tape l
It is configured so that it can be removed from O.

Then, as shown in FIG. 3, the marker detection optical sensor 2
When the marker 23 is irradiated with light from the light emitting section 29 of No. 4, the light is reflected toward the light receiving section 3.0.

Then, from the position where the second marker 23 is attached, the second
When the recording of the second song is completed, the third marker 23 is pasted at the end position of the second song and the third marker 23 is recorded.
is a marker indicating the end position of the second song as well as the start position of the third song. Then, in the same manner as the fourth marker 23 is attached, the fourth song is recorded.

When four pieces of music and their corresponding videos are recorded on the magnetic tape 10 in this way, markers are provided at the start positions of the four pieces of music and images, respectively.

And cassette half 2 of video cassette tape 18
A marker detection optical sensor 24 is provided near the tape guide 25 provided on the take-up reel 39 side of the magnetic tape 6 and on the inside of the magnetic tape 10. 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 10
As the light passes through the front position of the marker detection optical sensor 24, the light emitted from the first light emitting section 29 is as follows.
The marker 23 affixed to the inner surface of the magnetic tape 10 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.

Furthermore, in the video cassette tape tape running control mechanism 22 according to the present embodiment, as shown in FIG. Outside the video cassette tape 18, there are two cassette tape individual light emitting units 3.
5.36 is provided. That is, the side ribs 37 and 41 that make up the frame of the cassette half 26 are located at the parts that can emit light to the two light receiving sections 16a and 16b that make up the drive motor control optical sensor 19 provided on the video cassette deck 15. The cassette tapes 35 and 3B are provided respectively.

The light emitting parts 35 and 36 of the cassette tape have 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 individual light emitting sections 35 and 36 each emit light from the light emitting section 17 of the drive motor control optical sensor 19 provided on the video cassette deck side. , the above optical fiber 56.5
Guidance using 6.

The light receiving sections 16a, 1
6b.

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

On one optical path 40a of the light emitted from the light emitting section 17 constituting the drive motor control optical sensor 19 provided on the video cassette deck 15, an opening is formed in the side rib 37 constituting the frame of the cassette half 26. Hole 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 individual light emitting section 35 is provided on the side of the aperture 42 provided in the side rib 37, and is connected to the drive motor provided in 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 aperture 47 and an inner aperture 48 are provided in the side surface 49 of the cassette tape, and the other cassette tape light emitting section 36 is provided near the aperture 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 then wound around a tape guide 44 and a tape roller 45 so as to reach a supply reel 38 . Y! The tape guide 44 is provided with a tape retainer 46 for preventing the supply reel 38 of the magnetic tape 10 from sagging.One end of the tape retainer 46 is fixed to the tape guide 44, and the other end is slightly bent. It is provided so as to be in sliding contact with the tape roller 45 in the folded state and in pressure contact with the inner side surface of the wound magnetic tape 10. This tape holder 46 is made of a metallic material that can reflect light, and the other cassette tape light emitting section 36 emits light to this tape holder 46, and the light is reflected on the tape holder 46 and the other cassette tape light emitting part 36 emits light. It is attached to the part leading to the light receiving part 16b.

Then, as shown in FIG.
An input section 32 and a display section 33 are provided on the back surface 31 of the magnetic tape 10, and the input section 32 can arbitrarily designate a desired recording content 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. The select switch 34 consists of four button switches corresponding to the number of recorded contents (four songs), and selects each of the four songs recorded on the magnetic tape 10 and plays each part in an appropriate order. It is configured to be easy to use. The display section 33 is composed of four sections 57, each of which is formed by a 7-segment LED, and the user operates the input section 32, which is composed of the select switch 34 consisting of the button switch, to generate a magnetic field. When the order of the songs desired to be played out of the four songs recorded on the tape IO is appropriately determined, the numbers for displaying each part 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 a rib 50 adjacent to the take-up side reel 39 and the supply side reel 38, and furthermore, a control section 27 consisting of a microcomputer is provided. A power supply unit 28 made of a battery is provided at a corner provided at one end of the back surface of the battery 26 and defined by the rib 54 .

Furthermore, in a region adjacent to the supply reel 38 and defined by a rib 53 provided at the other end of the back surface of the cassette half 26, a marker is detected by the marker detection sensor 24, or.

A signal sound generating means 94 is provided that generates a signal sound in conjunction with the detection of the transparent portion by the optical sensor for controlling the drive motor.

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 1o, the light-receiving part 16 of the drive motor control optical sensor 19 is detected from the light-emitting part 35.36 or the light-emitting part 17 of the cassette tape.
a.

16b, and controls the operation of the drive motor 14 installed in the video cassette deck 15 to stop tape running, and also activates the signal sound generating means 94,
In these cases, a signal sound is emitted to notify the user that the tape has stopped running from the playback, fast forward, or rewind state.

Further, when the marker detection sensor 24 detects the marker 23 provided in the input unit 32 at the start position of the recorded content specified by the user as appropriate, the control unit 27 controls the input unit 32 to select the cassette tape. 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.

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 a tape drive wheel 7 provided on the video cassette deck is provided therein.
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 winding portion 60, and a cylindrical magnetic tape winding portion 61. It consists of a disc-shaped reel flange part 62 fixed almost horizontally at the upper end of the winding part 6°. the above,
The reel hub portion 61 is rotatably mounted on the inner side 63 of the cassette half 26, and the reel flange portion 62 has a support portion 64 formed of a convex portion protruding from the rotational center of the reel flange portion 62. The support portion 64 is rotatably supported within a recess 66 formed in the inner upper surface portion 65 of the cassette 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 protrusion 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 The shaft 73 is arranged in the tape drive shaft insertion hole 71 with seven rungs 96 rotatably placed on the protrusion 72 on the ring.

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 a cylindrical tape drive shaft storage section 67, and is configured to rotate at the same speed as the tape drive shaft 73 through the tape drive shaft storage section 67. There is.

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 drive gear 82 is configured to be interlocked with the driving rotation gear 74 and to output rotation at a higher speed than the driving 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 meshes with the drive gear 82 that constitutes 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 that constitutes a speed change rotating gear 75 that meshes with the driving rotary gear 74 .

In this case, as described above, the speed change rotary gear 75 is formed to have a much smaller diameter than the drive rotary gear 74, so the rotational speed of the speed change rotary gear 75 is 5M.
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 of the drive gear 82 is transmitted to the reel rotation gear 76 that meshes with the drive gear 82.

Since this 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 7 lung portion via the reel rotation gear 76. 62.

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 explanation has been given above using the case where a fast forward operation is performed using the video cassette tape 18 according to the present embodiment, but the same applies when performing a rewind operation. When the rewind button provided on the deck is pressed, the main brake of the reel stand 88 is released, the built-in drive motor is activated, the clutch pulley rotates counterclockwise, and the fast forward rewind idler 89 moves the reel. The reel is crimped onto the stand (supply side) and the reel stand (supply side) is rotated counterclockwise at high speed.

In this case, similarly to the case described above, the rotational driving force applied to the reel stand 88 is amplified via the transmission mechanism 68 provided inside the reel 38, 39 installed in the cassette half 26, and the rotational driving force is amplified to the reel 38. .39, and the magnetic tape 10 is rewound and taken up at high speed.

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

First, as shown in FIG. 4, the operator presses the select switch 34, which is a pushbutton 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. A song selection operation is performed, and each section 57 of a display section 33 made up of LEDs displays that the second and fourth songs will be played, and the video cassette deck 15 loaded with the video cassette tape 18 is operated in a fast forward mode.

In this case, by the song selection operation on the video cassette tape 18, the control unit 27 built in the video cassette tape 1B causes the marker detection optical sensor 24 to detect the second marker 23 affixed on the magnetic tape 1O. In this case, the cassette tape individual light emitting unit 36 is made to emit light to control the operation of the drive motor 14 to stop the 1 m magnetic tape 10 from traveling, and when the third marker 23 is detected by the marker detection optical sensor 24, The cassette tape individual light emitting section 35
and the cassette tape individual light emitting section 36 to emit light,
It is configured to control the operation of the drive motor to stop the running of the magnetic tape 10 and to maintain this stopped state.

In other words, the video cassette deck used in this embodiment 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 track) is detected by the marker detection optical sensor 24 and the control unit 27 causes the cassette tape individual light emitting unit 36 to emit light, the system control built in the video cassette deck The controller determines that the signal indicates that the magnetic tape 10 has been completely wound onto the take-up reel 39 in the playback mode, and immediately rewinds the magnetic tape after tape running is stopped. Therefore, the cassette tape individual light emitting section 35
By also emitting light, it is assumed to the system control section of the video cassette deck that the entire magnetic tape IO is wound onto the supply reel 38, and the running of the magnetic tape 10 is stopped.

In addition, the control unit 27 installed in the video power set 18 is
When the magnetic tape IO is in the fast forward mode, when the marker detection optical sensor 24 detects the fourth marker 23 (marker indicating the start position of the fourth track), the cassette tape individual 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 power setter 1B.
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 (the marker indicating the start position of the second song) attached to the magnetic tape IO, the control unit 27 performs the following operations as shown in FIG. The liquid crystal shutter 93 is opened and the cassette tape individual light emitting section 3 is inserted into the optical fiber 56 from the light emitting section 17.
6, and causes the cassette tape individual light emitting section 36 to emit light to the light receiving section 16b.

Then, the light receiving section 1 provided on the video cassette deck side
6b receives the light emitted from the cassette tape individual light emitting section 36, and the light receiving section 16b inputs an electric signal to a system control section provided in the video cassette deck. 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 individual light emitting section 36.
emits light, and energizes the signal sound generating means 94 to operate the @ 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, the magnetic tape 10 runs, the second song ends, and the marker detection optical sensor 24 detects the third marker 23 (provided at the start position of the third song) among the markers 23 attached to the magnetic tape IO. When a marker) is detected, as shown in FIG. 7, the control section 27 opens the liquid crystal shutter 93 to create an optical path in the optical fiber 56 from the light emitting section 17 to the cassette tape individual light emitting section 36. First, the cassette tape individual light emitting section 36 emits light to the light receiving section 16b. In this case, since the mode on the video cassette deck side is currently the playback mode, the system control section of the video cassette deck is activated by the light emitted from the cassette tape individual light emitting section 36 to the light receiving section 16b.
It is determined that the signal indicates that the magnetic tape 10 has been wound up to 9, and the auto-rewind mechanism automatically rewinds the magnetic tape 1.
After stopping the 0 from running, it is attempted to immediately switch to rewind mode.

Therefore, the control section 27 controls the cassette tape individual light emitting section 3.
Almost simultaneously with the light emission of magnetic tape 6, the other cassette tape light emitting section 35 is caused to emit light to the light receiving section 16a, and the magnetic tape 1
This simulates a state in which all 0s are wound onto the supply reel 38, sets the mode on the video cassette deck side to a stop mode, and stops the running of the magnetic tape 10.

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.
7 operates the liquid crystal shutter 93 to form an optical path in the optical fiber 56, causes the cassette tape individual light emitting section 36 to emit light to the light receiving section 16b provided on the video cassette deck side, and stops the operation of the drive motor. , stops the running of the magnetic tape 10, and activates the signal sound generating means 94 to generate a signal sound to announce the stop of the tape running.

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 light emitting section 17 detects the light transmitting section 13 provided at the end 20 of the magnetic tape 10, the video cassette deck light emits as shown in FIG. The light emitted from the section 17 reaches the video cassette deck side light receiving section 16a, and the light receiving section 16b issues a predetermined signal to a system control section (not shown) to activate a so-called auto-rewind mechanism.

That is, the system control section stops the operation of the drive motor 14 built into the video cassette deck, and immediately thereafter shifts to the rewind mode, and reverses the rotation of the drive motor 14. As a result, the magnetic tape lO is rewound and wound onto the supply side tape 38, and the video cassette deck individual light emitting unit 17 illuminates the magnetic tape lO.
When the light-transmitting part 12 provided at the starting end 21 of the O is detected, the light emitted from the light-emitting part 17 reaches the light-receiving part 16a and is driven via the system control part, as shown in FIG. The operation of the motor 14 is stopped and the running of the magnetic tape 10 is stopped, thereby returning to the initial state of operation.

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.

In the video cassette tape 18 used in the tape running control mat structure 22 of the cassette tape according to this embodiment, a transmission mechanism 68 consisting of a gear device is provided in the internally installed reels 38 and 39, and a tape drive shaft This is because the rotation of the reel 73 can be amplified and transmitted to the reels 38 and 39.

When the video cassette deck is in fast forward mode or rewind mode, the reels 38 and 39 can be rotated at a higher speed than ordinary video cassette tapes. Coupled with magnetic tape 10 easily and quickly
It becomes possible to cue the contents recorded in the .

Further, the cassette tape individual light emitting sections 35 and 36 of the video cassette tape 18 used in the tape running control mechanism 22 of the cassette tape according to this embodiment are constituted by an optical fiber 56 and a liquid crystal shutter 93 provided on this optical fiber. , an example has been described in which the light from the light emitting part 17 of the drive motor control optical sensor 19 is used to cause the light emitting parts 35 and 36 of the cassette tape to emit light; however, the invention is not limited to this embodiment; For example, an LED may be used as long as it is configured so that it can emit light.

As in this embodiment, an optical fiber 56 and a liquid crystal shutter 93 are used to utilize the light from the light emitting part 17 provided on the video cassette deck to light the cassette tape individual light emitting parts 35 and 36.
In this case, 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 mechanism of the cassette tape according to this embodiment to the case where 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 cause both of the cassette tape individual light emitting sections 35 and 36 to emit light at all times.

Furthermore, in the above embodiment, an example was explained in which a marker made of aluminum foil was used as the marker 23 affixed to the magnetic tape 1O, but it is also possible to construct a remarker made of silver paper and provide it removably. Alternatively, a marker may be used by coating the magnetic tape 10 with a paint that can reflect light and be removed later, and is not limited to the above embodiment.

In addition, in this embodiment, the video cassette tape 18
The input section 32 provided in the magnetic tape 10 has been described as an example in which it is configured with a select switch 34 consisting of 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 10g switches each numbered from 0 to 9.

Furthermore, in this embodiment, a signal sound generating means 94 is provided in the cassette I\-F 26, and generates a signal sound when the tape running stops in the playback mode, fast forward mode, and rewind mode. Although the above configuration has been described as an example, the present invention is not limited to this embodiment, and a structure in which the signal sound generating means is not provided may also be used.

In addition, as shown in FIG. 10, the input section 32, the display s33
A video cassette tape 97 is constructed by an adapter 95 provided with a control llA 27, a power supply section 28, etc., and a video cassette tape main body 96 containing a reel wound with magnetic tape, and this adapter 95 is detachable. In this way, when the video cassette tape 97 is constituted by the adapter 95 containing the input section 32, the control section 27, etc., and the video cassette tape main body 96, Unlike the case of the cassette tape 18, when producing a large number of video cassette tapes 97.

It is only necessary to manufacture a small amount of the adapter 95 equipped with the control section 27, the input section 32, etc. and a large number of video cassette tape bodies 96, and there is no need to create the control section 27, input section 32, etc. for each video cassette tape 18. Therefore, the manufacturing cost of the video cassette tape 97 can be reduced.

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, however, the present invention is not limited to this embodiment, and it may be configured to be electrically detected using, for example, a sensing coil.

[Effects of the Invention] As described above, in the tape running control mechanism of the video cassette deck according to the present invention, while utilizing the tape running control mechanism provided on the video cassette deck side, it is possible to move the magnetic tape to a desired position. While the marker is provided, the cassette case of the cassette tape is provided with a marker detection sensor, and a cassette tape side light emitting part that is linked to the marker detection sensor is provided in a part that can emit light to the light receiving part of the optical sensor for controlling the drive motor. It is possible to locate the beginning of 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 manufacturing costs.

In addition, in the present invention, since the marker indicating the start position of the recorded content is removably provided on the magnetic tape, when a certain content is recorded on a video cassette tape, the user can easily check the recorded content. A marker can be easily provided at the starting position.

Therefore, in the present invention, the user can freely set a marker indicating the start position of the recorded content, and can easily locate the beginning of the recorded content.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of the structure of a video cassette used in a tape running control mechanism for a video cassette tape according to the present invention, and FIG. 2 is a tape running control mechanism for a video cassette tape according to the present invention. A conceptual diagram showing a tape running control mechanism provided on a video cassette tape deck used in the mechanism, FIG. A perspective view showing an example, FIG. 4 shows an embodiment of the input section and display section provided on the back side of the video cassette tape used in the tape running control mechanism of the video cassette tape according to the present invention. A side view, FIG. 5 is a sectional view showing an example of the internal structure of a reel of a video cassette tape used in a tape running control mechanism for a video cassette tape according to the present invention, and FIG. FIG. 7 is a sectional view showing a state in which the recording contents of the cassette tape are searched using the video cassette tape tape running control U4 mechanism, and FIG. 7 is a video cassette tape tape running control mechanism A according to the present invention. Figure 8 is a cross-sectional view showing a state in which the recording contents of a video cassette tape are cued using the cassette tape, and a state in which the light emitting parts on both cassette tape sides are emitted to stop the tape running. FIG. 9 is a sectional view showing a state in which a tape is rewound using the video cassette tape tape running control mechanism 1 according to the invention, and FIG. FIG. 10 is a side view showing another embodiment of the input section of the present invention, and FIG. 10 is a perspective view showing another embodiment of the video cassette tape used in the video cassette tape tape running control mechanism according to the present invention. 10...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 and motor control 20... terminal end 21... starting end 22... tape running control mechanism for video cassette tape 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 35.38...Cassette tape accidental light section 37...Side rib 38...
- Supply side reel 39... Winding side reel 40... Optical path 41... Side ribs 42.
43... Opening part 44... Tape guide 45...
-Tape roller 46-tape presser 47...outer opening 48...inner opening 49...side surface
50... Rib 51... Front part 52
... Side part 53.54 ... Rib 55 ... Insertion hole 56 ... Optical fiber 57 ... Section 60
...Magnetic tape winding part 61...Reel hub part 62...Reel flange part 63...Inside 64...Support part 65.
・-Internal bond upper surface part 66... Recessed part 67... Tape drive shaft storage part 68... Transmission mechanism 69... Flange part 70
... Back part 71 ... Drive shaft insertion hole 2 ...
- Convex portion 73... Tape drive shaft 4... Driving rotation gear 75... Variable speed rotation gear 6... Reel rotation gear 77... Inner lower surface portion 8... Strut
79... Support arm O... Shaft part 8
1... Speed change gear 2... Drive gear 83...
Shaft part 4...Rotation center part 85...Rotation shaft 6.8
7... Hole 88... Reel stand 9... Fast forward rewind idler... One end 92... Other end 3... Liquid crystal shutter 94... Signal sound generating means 5... Adapter 6... ...Video cassette tape body 7...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 the video cassette tape tape running control mechanism that detects the optical part and controls the operation of the drive motor built into the video cassette deck to stop tape running, a marker can be attached and removed at the start position of the recorded content on the magnetic tape. The cassette half is provided with a marker detection sensor capable of detecting a marker, and a marker detection sensor is provided at a portion capable of emitting light to a light receiving portion of the drive motor control optical sensor and is linked to the detection of the marker by the marker detection sensor. and a cassette tape side light emitting section that emits light as a result of the marker detection sensor detecting a marker provided on the magnetic tape, emitting light from the cassette tape side light emitting section to a light receiving section of a drive motor control optical sensor; A tape running control mechanism for a video cassette tape, characterized in that the tape running control mechanism for a video cassette tape is formed to stop tape running by controlling the operation of a drive motor built into a video cassette deck.