JPH0363988A - Tape travel control mechanism for video cassette tape - Google Patents

Abstract

PURPOSE:To enable the program search of contents recorded to a cassette tape by providing 10 switches, providing an input part, which arbitrarily designates the desired recorded contents out of the contents recorded to the magnetic tape, and a display part to display a title and detecting a marker provided in the start position of the contents. CONSTITUTION:In the outside part of a cassette half 26, an input part 32 is provided with the ten switches 34 to which respective figures 0 to 9 are respectively attached. Accordingly, even when a lot of recorded contents are recorded to the video cassette tape 18, operation can be made correspondent by the ten switches and the recorded contents can be easily and speedily selected. Further, the display part 33 is provided to display the title of the recorded contents designated by the input part 32. Thus, a user can confirm the title of the recorded contents, to which the program search is desired, in the display part 33 and the recorded contents can be selected without fail.

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, in the past, a counter provided in a video cassette deck was used to match numerical addresses to the contents of the video cassette tape. or use the numbers to fast forward or rewind the tape and play back the contents of the tape.

The content of the tape is played back as an image on the monitor, the tape is advanced while visually checking the monitor screen in "fast forward" mode, and when the desired screen is played, the rotation of the tape is stopped and the tape is played back. there was.

[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 driving # control 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 inside the cassette half, and emits light to the light receiving section of the optical sensor for controlling the drive motor. A cassette tape side light emitting section is provided in a region where the marker is detected, and the light emitting section is interlocked with the marker detection sensor.

The outer part of the cassette half is equipped with 10 switches marked with numbers O to 9, and an input section that allows you to arbitrarily specify the desired recording content from among the recorded contents of the magnetic tape. and a display section that can identify the recorded content specified by the input section, and the marker detection optical sensor detects the marker provided at the start position of the recorded content specified by the input section and displayed by the display section. By doing so, the light emitting part on the cassette tape side emits light to the light receiving part of the optical sensor for controlling the drive motor, which controls the operation of the drive motor installed in the video cassette deck and stops 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 cassette tape tape running interval m mechanism 22 according to the present embodiment, the magnetic tape 10 of the video cassette tape 18 loaded in the video cassette deck 15 is connected to the beginning 21 and end 420 of the magnetic tape 10. is provided with a light-transmitting part 12.13 made of a transparent leader tape.

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 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 1O 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 passing through the light receiving section 1.
6b, the light receiving section 16b detects the light emitted from the light emitting section 17 and activates the drive motor control optical sensor 19.
sends an electrical signal to the system control section built into 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 14.
It is configured to stop the operation of the tape 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 ambient light 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 IO is wound onto the supply reel 38.

A video cassette tape 1 used in the video cassette tape tape running control mechanism 22 according to the present embodiment.
8, one roll of magnetic tape 10 is prerecorded with the music of many songs and images corresponding to the music of the famous songs.

In the video cassette tape tape running control mechanism 22 according to this embodiment, as shown in FIG. Markers 23 made of aluminum foil are affixed to the inner surface of the magnetic tape 10 at each start position of the famous piece of music recorded on the magnetic tape 10 wound around 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 IO. is provided. As shown in FIG. 3, this marker detection optical sensor 24 is composed of a reflective photoinstructor, and has a light emitting section 29 inside.
and a light receiving section 30.

As shown in FIG. 3, the marker 23 affixed to the start position of the masterpiece on the magnetic tape 10
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 attached to the inner surface of the magnetic tape 10 is irradiated, and the light from the light emitting section 29 that irradiates the marker 23 is reflected and reaches the light receiving section 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. 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 forming the frame of the cassette half 26 are located at the portions that can emit light to the two light receiving sections 18a and 16b forming the drive motor control optical sensor 19 provided on the video cassette deck 15. A cassette tape individual light emitting unit 35, 36 is provided in each of the cassette tapes.

The cassette tape individual light emitting sections 35 and 36 have one end 91.
Reference numeral 91 indicates the light emitting section 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 are as shown in FIG.

The light from the light emitting section 17 of the drive motor control optical sensor 19 provided on the side of each video cassette deck is guided using the optical fibers 56 and 56.

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 4Oa 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, the light passes through 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 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 4Ob from the light emitting section 17 to the other light receiving section 156b constituting the optical sensor 19 for controlling the drive motor.
An outer opening 47 and an inner opening 48 are provided in the side surface portion 49 of the cassette tape, and the other cassette tape individual 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 then wound around a tape guide 44 and a tape roller 45 so as to reach a supply reel 38 . Furthermore, the tape guide 44 has
A tape retainer 46 is provided to prevent the supply reel 38 of the magnetic tape 10 from sagging, 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 IO. And this tape retainer 46 is
The other cassette tape individual light emitting section 36, which is made of a metallic material that can reflect light, can emit light to the tape holder 46, and also has light reflected from the tape holder 46 to the other light receiving section 16b. installed.

Then, as shown in FIG. 4, the video cassette tape 1
On the rear surface 31 of the 8 cassette half 26, there are 10 select switches 3 each numbered O to 9.
4, and an input section 32 that can arbitrarily specify desired recorded contents among the recorded contents of the magnetic tape IO, and this input section 32.
A display section 33 is provided that can display the title of the recorded content specified by.

The input section 32 includes a select switch 34 consisting of a so-called numeric keypad having 10 key switches labeled with numbers O to 9, and a memory switch 90 for determining the music input by these select switches 34. and a clear switch 97 for erasing the input when the selection switch 34 inputs the input incorrectly.
It consists of

The display section 33 includes a track number display section 95 made up of 7-segment (7) LEDs, and a title display section 96 made up of a liquid crystal display. The title display section 96 is configured to be able to display the song number of the recorded song, and also to display the title of the recorded song.

Therefore, in this embodiment, the user
If you wish to play one of the many songs recorded in O, for example, the second and fourth songs, first turn on the select switch 34 numbered 2 on the input section 32, and then press the display section 33. After displaying the number "02" on the song number display section 95 to indicate that it is the second song, and confirming that it is the second song on the title display section 96, turn on the memory switch 90 of the input section 32. state and confirm the second song selection.

After that, in the same way, the select switch 34 numbered 4 is turned on in the input section 32, and the number "04" is displayed on the track number display $95 to confirm that it is the fourth track, and at the same time the title After displaying the title of the fourth song on the display section 96 and confirming that it is the desired fourth song, the memory switch 90 of the input section 32 is turned on.
Confirm the selection of the fourth song.

In this case, as described above, if any song other than the second and fourth songs is mistakenly input in the input section 32, the input section 32 is configured to be able to erase the input using the clear switch 97. ing.

Further, as shown in FIG. 1, a control @ 27 consisting of a microcomputer is provided in a region defined by the rib 50 adjacent to the take-up reel 39 and the supply reel 38, and furthermore, a control @ 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 .

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 that generates a signal sound in conjunction with the detection of the transparent portion by the optical sensor.

In other words, 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 portion 12.13 of the magnetic tape IO, the cassette tape individual light emitting unit @35, 3B emits light to the light receiving portions 16a, 16b of the drive motor control ambient light sensor 19, and the video cassette deck 15 It controls the operation of the drive motor 14 installed in the drive motor 14 to stop the tape running, and also operates the signal sound generating means 94 to generate a signal sound in those cases, and to change the state of playback, fast forwarding or rewinding. It is formed to notify the user that tape running has come to a halt.

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 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 housed in the video cassette tape 18 according to the present embodiment include a circular hub portion 61 having a cylindrical magnetic tape winding portion 60, and a cylindrical magnetic tape winding portion 61. The winding part 60 includes a disk-shaped reel flange part 62 fixed almost horizontally to the upper end thereof. 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 .

A tape drive shaft accommodating portion 67 and a transmission mechanism 68 consisting of a gear device are provided within the magnetic tape winding 9% 60 of the reel 38, 39. This tape drive shaft storage section 67
The entire body is formed into a substantially cylindrical shape, and a flange portion 69 is provided to protrude outward from the lower end portion over the side surface area. 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 has a flange portion 96 rotatably mounted on the convex portion 72 on the ring, and is disposed within the tape drive shaft insertion hole 71.

When loading the videocassette/) tape 18, the tape drive shaft 73 is housed and fixed in the tape drive shaft accommodating portion 67 whose tip end is placed in the tape drive shaft insertion hole 71. It is configured to transmit the rotation 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 cylindrical tape drive shaft storage section 67.

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 .

It consists of a disc-shaped gear formed with a larger diameter than the speed change gear 81. The variable speed rotating gear 75 constituted by these gears 81 and 82 is configured to interlock with the driving rotating gear 74 and to output rotation at a higher speed than the driving rotating gear 74 at the driving gear 82. .

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 7,
3 transmits the clockwise rotation of the take-up reel stand 88 to the tape drive shaft accommodating portion 67, and a drive rotating gear 74 that constitutes a transmission mechanism 68 fixed to the tape drive shaft 73 is connected together with the tape drive shaft accommodating portion 67. Rotate at the same 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 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 of the drive gear 82 is transmitted to the reel rotation gear 76 that meshes 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 1o
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 you press the rewind button provided on the deck, the main brake of the reel stand 88 is released, the built-in drive motor is activated, the cutter pulley rotates counterclockwise, and the fast forward rewind button is pressed. Crimp the reel to the stand (supply side) and rotate the reel stand (supply @#) counterclockwise at high speed.

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

Next, let us consider a case where only the second and fourth songs out of the multiple music songs and videos corresponding to six songs recorded on the videocassette tape are played using the tape running control mechanism of the videocassette tape according to the present embodiment. Let's explain with an example. Further, in this case, the description will be made assuming that the magnetic tape 10 is started from a state where the magnetic tape 10 is completely wound around the supply hub 38.

First, as shown in FIG. 4, the operator turns on the select switch 34 marked with the number 2 on the input section 32 provided on the back surface 31 of the cassette half 26 of the video cassette tape 18. This causes the song number display section 95 and title display section 96 of the display section 33 to display the fact that it is the second song and the title of the second song, respectively.

After confirming that it is the second song on the display section 33, the operator turns on the memory switch 90 of the input section 32.
By setting this to the state, the selection of the second song is confirmed.

Next, select switch 3 with the number 4 attached in the same way.
4 is turned on, the song number display section 95 and title display section 96 of the display section 33 display a message indicating that it is the fourth song, and a message indicating that it is the fourth song, respectively.
Display the song title. After confirming that the fourth song is selected on the display unit 33, the operator turns on the memory switch 9o to confirm the selection of the fourth song, loads the video cassette tape 18 into the video cassette deck, and Operate the cassette deck in fast forward mode.

In this case, by the music 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 1o is detected, the cassette tape individual light emitting section 36 is made to emit light to control the operation of the drive motor 4, stopping the running of the magnetic tape 1o, and the third marker 23 is detected. Marker 23 is detected by marker detection optical sensor 2
4 is detected, both the cassette tape light emitting section 35 and the cassette tape individual 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 held in place.

That is, the video cassette deck used in this embodiment is equipped with a so-called auto-rewind mechanism, and this auto-rewind mechanism operates from the light emitting section 17 on the video cassette deck side to the light receiving section in the fast forward mode of the video cassette deck. When emitting light to 16b,
The running of the magnetic tape 10 is stopped, and on the other hand, when light is emitted from the light emitting section 17 to the light receiving section 16b in the reproduction mode, the magnetic tape 10 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 magnetic tape 10 is completely wound onto the supply reel 38, and the running of the magnetic tape 10 is stopped.

In addition, the control section 27 installed in the video cassette) 18 is
When the marker detection optical sensor 24 detects the fourth marker 23 (marker indicating the start position of the fourth track) when the magnetic tape 10 is in the fast forward mode, the cassette tape individual light emitting section 36 is caused to emit light, and the magnetic tape 10 is configured to stop running.

Therefore, an operation is performed on the input section 32 of the video cassette tape 18 to indicate that the second and fourth songs are to be selected.
Video cassette tape 18 is video cassette deck 15
is installed 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 10, the control unit 27 opens the liquid crystal shutter 93. An optical path is formed in the optical fiber 56, and light is emitted from the cassette tape individual light emitting section 36 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. Then, the system control unit 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 configuration generating means 94,
The signal sound generation means 94 is activated to generate a signal sound to notify the user that the fast forward mode has ended, tape running has stopped, and a playback ready state has been reached.

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

After that, the magnetic tape IO 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 affixed to the magnetic tape IO. marker) is detected, as shown in FIG.

The control section 27 first causes the cassette tape individual light emitting section 36 to emit light. 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 causes the cassette tape individual light emitting section 36 to emit light to the light receiving section 16b, so that the system control section of the video cassette deck sends the light to the take-up reel 39. It is determined that the signal indicates that the magnetic tape 10 has been wound, and after stopping the magnetic tape 10 from running, the automatic rewind mechanism attempts to immediately shift to rewind mode.

Therefore, the control section 27 controls the cassette tape individual light emitting section 3.
6, the other cassette tape individual light emitting section 35 also emits light to the light receiving section 18a, and the magnetic tape 1
This simulates a state in which all 0s have been 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 IO.

Thereafter, the operator operates the operating section of the video cassette deck as appropriate to fast-forward the third track, for example by setting it to fast-forward mode, and the marker detection optical sensor 24 detects the fourth track among the markers affixed to the magnetic tape 10. marker 23 (4
When the marker provided at the start position of the song) is detected, the marker detection optical sensor 24 detects the second marker 23 (the marker provided at the start position of the second song). As shown in FIG. 6, the control section 27 operates the liquid crystal shutter 93 to form an optical path within the optical fiber 56, and directs the cassette tape individual light emitting section 36 to the light receiving section 16b provided on the video cassette deck side. On the other hand, a light is emitted to stop the operation of the drive motor, thereby stopping the running of the magnetic tape 10, and at the same time activating the signal sound generating means 94 to generate a signal sound to notify the stop of 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. . 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 emitting section 17 detects the video cassette deck as shown in FIG. The light emitted from the individual light emitting section 17 reaches the video cassette deck side light receiving section 16b, and the light receiving section 16b issues a predetermined signal to a system control section (not shown) to operate a so-called auto-rewind mechanism.

That is, the system control section c 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 10 is rewound and wound onto the supply side tape 38, and the video cassette deck individual light emitting unit 17
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 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 Mm unit 27 activates 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.

Tape running control mechanism 2 for cassette tape according to the present embodiment
In the video cassette tape 18 used in 2,
The internally installed reels 38 and 39 are provided with a transmission mechanism 68 consisting of a gear device, and are configured to amplify the rotation of the tape drive shaft 73 and transmit it to the reels 38 and 39. When the 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. , it becomes possible to easily and quickly cue the content recorded on the magnetic tape IO.

Furthermore, the cassette tape accidental light portions 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. Although the description has been made using an example in which there is a light emitting device, the present invention is not limited to this embodiment, and any structure that can emit light to the light receiving portions 16a and 16b may be used, for example, an LED may be used.

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 unit 28 smaller.

Furthermore, in the above embodiment, an example was explained in which the auto rewind mechanism built into the video cassette deck operates only in playback mode, but the invention is not limited to the above embodiment; It is also possible to apply the cassette tape tape running control mechanism 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 always cause both of the cassette tape light-emitting sections 35 and 36 to emit light.

Furthermore, in the above embodiment, a case was explained in which a marker made of aluminum foil was used as the marker 23 affixed to the magnetic tape 10, but the above-mentioned silver paper may also be affixed. In addition to markers attached to the magnetic tape 10, holes may be provided at appropriate locations on the magnetic tape 10 through which light emitted from the optical sensor for marker detection passes.

In this case, the marker detection optical sensor is not a reflective type optical sensor equipped with a light emitting part and a light receiving part as in the above embodiment, but one light emitting part and a light receiving part are arranged on both sides of the magnetic tape 10. It needs to be an optical sensor.

In this embodiment, the video cassette tape 18
Although the description has been made using an example in which music and video are recorded in advance on the magnetic tape 10 of 2008, and a marker 23 is provided at the start position of the recorded music, the present invention is not limited to this embodiment. It may also be a video cassette tape that includes a magnetic tape that is not recorded in advance.

In other words, nothing is recorded like this.

When using a so-called blank video cassette/) tape, the user can record desired recording contents on the magnetic tape 10 as appropriate, but this can be done by pasting a removable marker at the start position of the recording contents. , it can be applied to the tape running control mechanism of the video cassette tape according to the present invention.

Furthermore, in this embodiment, a signal sound generating means 94 is provided in the cassette half 26, and is configured to generate a signal sound when the tape running stops in the play mode, fast forward mode, and rewind mode. Although a case has been described as an example in which a signal tone generating means is provided, the present invention is not limited to this embodiment, and the signal tone generating means may not be provided.

Further, as shown in FIG. 9, an input section 32, a display section 33, a control section 27. Adapter 98 provided with power supply unit 28 etc.
and a video cassette tape main body 99 containing a reel wound with magnetic tape to constitute a video cassette tape lOO, and the adapter 98 may be detachably formed.

In this way, the adapter 98 that incorporates the input section 32, the control section 27, etc., and the video cassette tape main body 99,
When constructing the video cassette tape 100, unlike the case of the video cassette tape 18 in the above embodiment, when producing a large number of video cassette tapes 100, an adapter 9 equipped with a control section 27, an input section 32, etc.
8 and a large amount of video cassette tape bodies 99, each video cassette tape 18 has a controller 2.
7 and the input section 32, etc.,
It becomes possible to reduce the manufacturing cost of the video cassette tape 100.

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 the configuration may be such that the detection is performed electrically using, for example, a sensing coil.

Effects of the Invention As described above, in the tape running control mechanism for a video cassette tape according to the present invention, the tape running control mechanism a provided on the video cassette deck side is used to move the magnetic tape to a desired position. A marker is provided in the cassette case of the cassette tape, and a marker detection sensor is provided in the cassette case of the cassette tape, and a marker is provided in a part of the cassette case of the cassette tape that can emit light to the light receiving part of the optical sensor for controlling the drive motor. A light emitting section on the cassette tape side is provided in conjunction with a detection sensor, and it is possible to cue the contents recorded on the cassette tape without making any changes to the mechanism on the video cassette deck side.

Therefore, unlike the conventional cassette deck cue mechanism, there is no need to provide a circuit on the video cassette deck side, and it is possible to easily and quickly cue the video cassette tape without increasing production costs. .

Further, in the present invention, since an input section equipped with 10 switches each numbered from O to 9 is provided on the outside of the cassette half, a large number of recorded contents can be recorded on the video cassette tape. Even if it is recorded
It can be supported by a switch on the IO side, and
Recording contents can be selected easily and quickly.

Furthermore, in the present invention, since a display section is provided that can display the title of the recorded content specified in the input section, the user confirms the title of the recorded content for which he/she wishes to cue on the display section. This allows you to reliably select the content to be recorded.

[Brief explanation of drawings]

tS1 is a sectional view showing an embodiment of the structure of a video cassette used in the video cassette tape running control mechanism according to the present invention, and FIG. FIG. 3 is a conceptual diagram showing a tape running control mechanism provided in a video cassette deck used in the tape running control mechanism of a video cassette tape according to the present invention. FIG. 4 is a perspective view showing an embodiment of a sensor for detecting a marker, and FIG. , FIG. 5 is a sectional view showing an example of the internal structure of a video cassette tape reel used in the video cassette tape tape running control mechanism according to the present invention, and FIG. 6 is a cross-sectional view showing an example of the internal structure of a video cassette tape reel according to the present invention. FIG. 7 is a sectional view showing a state in which the tape running control mechanism is used to locate the beginning of recorded contents on a cassette tape.
Similarly, the video cassette tape tape running control mechanism according to the present invention is used to cue the recorded contents of the video cassette tape, and both cassette tape side light emitting parts are emitted to stop the tape running. FIG. 8 is a cross-sectional view showing a state in which the tape is being rewound using the tape running control system of the video cassette tape according to the present invention, and FIG. FIG. 3 is a side view showing another embodiment of the video cassette tape used in the video cassette tape tape running control mechanism according to the present invention. lO...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... End end 21... Start end 22...
Tape running control W mechanism for cassette tape 23... Marker 24... Optical sensor for marker detection 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 34...Select switch 35.36...Cassette tape accidental light 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 45...
-Tape roller 46-tape presser 47...outer opening 4B...inner opening 49...side surface
50... Rib 51... Front part 52
... Side part 53, 54... Rib 55... Insertion hole 56... Optical fiber 60... Magnetic tape winding part 61... Reel hub part 62... Reel flange part 3... Inside 64...Support part 5
...Inner upper surface part 66...Recessed part 7...Tape drive shaft storage part 8...Transmission mechanism 69...Flange part 0...
・Back side part 71... Drive shaft insertion hole 2... Convex hood 73... Tape drive shaft 4... Driving rotation gear 75... Variable speed rotation gear 6... Reel rotation gear 77... Inside Bottom 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 6.87.
... Hole 88 ... Reel stand 9 ... Fast forward rewind idler O ... Memory switch 91 ... One end 2 ... Other end 93 ... Liquid crystal shutter 4 ... Signal sound generating means 95 ...Adapter 6...Video cassette tape body 7...Clear switch 98...Adapter 9...
Video cassette tape body 00...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 cassette tape-side light-emitting section that emits light is provided on the outside of the cassette half, while ten switches each labeled with a number from 0 to 9 are provided to select the desired content from among the recorded contents of the magnetic tape. An input section that can arbitrarily specify recorded content and a display section that can display the title of the recorded content specified by this input section are provided. By detecting the marker placed at the start position of the recorded content of the title displayed by 1. 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 the cassette tape.