KR100237033B1 - Record prevention release method and device thereof of tape recorder - Google Patents

Abstract

The present invention discloses a method and apparatus for releasing a recording protection of a tape recorder.

The present invention includes the steps of loading a cassette; Operating the recording safety lever to the release position when the cassette is loaded; Determining whether loading of the cassette is completed; Operating the recording safety lever to the sensing position when loading of the cassette is completed; Inputting a recording mode by an operation of a key input unit; Determining whether the erasing prevention tab of the cassette has been removed by input of the recording mode; Displaying whether recording is performed on the screen when the erasing prevention tab is removed; Determining whether the recording protection release mode has been selected by operation of the key input unit; Operating the recording safety lever to the recording mode position; Turning off the recording prevention mode by the operation of the recording safety lever; Executing recording by turning off the recording protection mode; Inputting a cassette ejecting mode by operation of a key input unit; Stopping recording by input of a cassette ejecting mode; Operating the recording safety lever to the release position when the recording of the cassette is stopped; Ejecting the cassette when the recording safety lever is operated to the release position; Determining whether ejection of the cassette is complete.

Therefore, the recording can be easily performed as required even when the cassette's anti-erase tab is removed, making the use of the product more convenient, and the recording safety lever being moved to the release position by a simple mechanical configuration and structure. This eliminates the load during cassette loading and ejection, which significantly improves product reliability.

Description

How to release record protection on tape recorder and its device

The present invention relates to a tape recorder, and more particularly, to a method of releasing a recording of a tape recorder, which allows recording to be performed even when an erasure prevention tap of a cassette is removed. And to the apparatus.

In general, a tape recorder such as a video cassette recorder (VCR) or a camcorder (recorder) records (or records) or reproduces video and audio signals on a tape of a cassette traveling along a certain traveling path of a traveling system. It is.

One example of such a tape recorder will be described with reference to FIGS. 1 and 2.

As shown in Fig. 1, a loading hole (not shown) on a deck De on the supply (Su) and take-up (Tu) sides of the head drum (Hd) is shown. The pole base assemblies Pb for loading the tape Ta of the cassette Ca are respectively positioned along the same.

In addition, a connect plate Cp is installed on the lower surface of the deck De so as to be movable in the left and right directions, and the connect plate Cp may be a mechanism, for example, a pole base assembly according to a mode change. Pb) or a main brake (not shown) is activated.

As shown in FIG. 2, a housing (Dh) is installed in front of the upper surface of the deck De, and a cassette holder for loading and ejecting the cassette Ca along horizontal and vertical sections inside the housing Dh. (cassette holder: Dc) is mounted. Accordingly, the cassette Ca is mounted on the cassette holder Dc to move and move along the horizontal and vertical sections, thereby loading and ejecting the cassette Ca.

On the other hand, on one side of the rear surface of the cassette Ca, an erasure prevention tab Ct is formed so as to be located in an erasure prevention hole Ch. Recording becomes possible when the erasing prevention tab Ct of the cassette Ca is not removed, and recording becomes impossible when the erasing prevention tab Ct is removed. The removal state of the anti-erasing tap Ct is detected by the mechanical operation of the record safety lever of the deck De.

One example of such a recording prevention apparatus of a conventional tape recorder is as shown in FIGS. 3A and 3B, so that the recording safety lever 15 can be freely rotated about the shaft 10 of the deck De. An arm 16 is formed on one side of the greening safety lever 15, and a head 17 is formed at the end of the arm 16.

Therefore, in the state where the erasing prevention tab Ct of the cassette Ca is not removed, the cassette Ca is misused in the process of mounting the cassette Ca on the cassette holder Ch and seating on the deck De. The head 17 of the greening safety lever 15 is in contact with the anti-tear tab Ct. As a result, the recording protection mode of the cassette Ca is turned off to set the recording mode.

On the other hand, in the state where the erasing preventing tab Ct of the cassette Ca is removed, the head 17 of the recording safety lever 15 is inserted into the erasing preventing hole Ch of the cassette Ca, and thus, Accordingly, the recording protection mode of the cassette Ca is turned on to make recording impossible.

However, the above-described recording prevention apparatus of the conventional tape recorder has a problem that the use of the product is restricted because the recording of the cassette Ca cannot be performed when the erasing prevention tab Ct of the cassette Ca is removed. There was. For example, after the recording of the cassette Ca, the erasing preventing tab Ct is removed to protect the recording state. In order to perform recording of the cassette Ca having the erasing preventing tab Ct removed, There was a cumbersome and inconvenient problem that the gap preventing holes Ch had to be filled with adhesive tape or the like.

In addition, when loading and ejecting the cassette Ca, the head 17 of the recording safety lever 15 is in contact with the erasing prevention tab Ct or inserted into the erasing preventing hole Ch, causing the load. There was a problem in that the reliability of the product is lowered, such as a malfunction of the drive mechanism.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned general problems, and an object of the present invention is to prevent recording of a tape recorder, which makes recording of a tape recorder easy to use, even when a cassette is prevented from being erased. To provide a release method.

Another object of the present invention is to provide an anti-recording apparatus of a tape recorder, in which a load is removed during loading and ejecting of a cassette to improve product reliability.

1 is a plan view schematically showing a traveling system of a typical tape recorder

2 is a side view partially showing a deck assembly of a typical tape recorder

3A and 3B are a perspective view and a side view partially showing an operating state of a recording prevention apparatus of a conventional tape recorder;

4A and 4B are flowcharts illustrating a method of releasing a recording protection of a tape recorder according to the present invention.

5 is a perspective view partially showing an apparatus for releasing a recording of a tape recorder according to the present invention;

6A and 6B are a side view and a plan view partially showing the operating state of the anti-recording release device of the tape recorder according to the present invention.

* Explanation of symbols for main parts of the drawings

20: recording safety lever 22; Head (of recording safety lever)

23: elastic plate (of the recording safety lever)

24: Support plate (of recording safety lever)

30,31: first and second first pushers (of the connection plate)

40: mode switch 50: control unit

55: key input portion Cp: connect plate

De: Deck Dh: (deck) housing

Dc: (deck) cassette holder Ca: cassette

Ct: Drain-proof tap (in cassette) Ch: Drain-proof hole (in cassette)

A feature of the present invention for achieving this object comprises the steps of loading a cassette; Operating the recording safety lever to the release position when the cassette is loaded; Determining whether loading of the cassette is completed; Operating the recording safety lever to the sensing position when loading of the cassette is completed; Inputting a recording mode by an operation of a key input unit; Determining whether the erasing prevention tab of the cassette has been removed by input of the recording mode; Displaying whether recording is performed on the screen when the erasing prevention tab is removed; Determining whether the recording protection release mode has been selected by operation of the key input unit; Operating the recording safety lever to the recording mode position; Turning off the recording prevention mode by the operation of the recording safety lever; Executing recording by turning off the recording protection mode; Inputting a cassette ejecting mode by operation of a key input unit; Stopping recording by input of a cassette ejecting mode; Operating the recording safety lever to the release position when the recording of the cassette is stopped; Ejecting the cassette when the recording safety lever is operated to the release position; And a method of releasing the recording of the tape recorder, the method including determining whether ejecting of the cassette is completed.

Another feature of the present invention is a deck that is provided with a holder for loading and ejecting the cassette along the horizontal and vertical section of the housing, a head drum for recording or playing on the tape of the cassette running along the odometer; A tape recorder including a connect plate installed on the lower surface of the deck so as to be movable according to a mode change, the tape recorder being mounted to be freely rotatable about the axis of the deck, and having one end contacting the cassette's anti-erase tab or the anti-erase hole. An arm having a head to be fitted is formed, the elastic plate is extended on one side to be supported by the post of the deck to enable elastic deformation, and has a support plate which is formed to be in level with the elastic plate, and operates on the other end. A greening safety lever on which a side is formed; A first pusher formed on one side of the connect plate to selectively contact the support plate to rotate the recording safety lever; A second pusher formed at a distance from the first pusher on the connect plate so as to be in contact with one side of the recording safety lever so as to be rotated in the opposite direction from the operating piece so as to rotate the recording safety lever; A mode switch for selectively pressing the button by the operating piece according to the rotation of the recording safety lever to output a switching signal; And a control unit for discriminating the recording mode input by the switching signal input from the mode switch and the operation of the key input unit to perform the recording of the cassette.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a method and apparatus for preventing recording of a tape recorder according to the present invention will be described in detail with reference to the accompanying drawings.

4 is a view for explaining a method of releasing a recording protection of a tape recorder according to the present invention, and FIGS. 5 to 6A and 6B are views for explaining an apparatus for releasing a recording of a tape recorder according to the present invention. Incidentally, the basic configuration of the tape recorder described in Figs. 1 and 2 will be described with the same reference numerals.

First, referring to FIGS. 1 and 2, a head drum Hd for recording and reproducing a cassette Ca is installed on an upper surface of the deck De, and a connecting plate is provided on the lower surface of the deck De. (Cp) is installed to be movable in the left and right directions. The connect plate Cp operates the components such as the pole base assembly Pb or the main brake (not shown) according to the mode change.

In addition, the housing Dh is installed in front of the upper surface of the deck De, and the cassette holder DC is loaded inside the housing Dh to load and eject the cassette Ca along the horizontal and vertical sections.

On the other hand, one side of the back of the cassette Ca is formed so that the erasing preventing tab Ct is located in the erasing preventing hole Ch. Therefore, recording becomes possible when the erasing prevention tab Ct of the cassette Ca is not removed, and recording becomes impossible when the erasing prevention tab Ct is removed.

As shown in Figs. 4A and 4B, in the method for preventing the recording of the tape recorder according to the present invention, step S100 is performed by moving the cassette holder Dc on which the cassette Ca is mounted to the horizontal and vertical sections of the housing Dh. Load along.

5 to 6A and 6B, the greening safety lever 20 is mounted to be freely rotatable about the axis 10 of the deck De, and an arm (one end) of the greening safety lever 20 is mounted. 21 is formed, and a head 22 is formed at the end of the arm 21.

In addition, an elastic plate 23 extends on one surface of the greening safety lever 20, and the elastic plate 23 elastically rotates the greening safety lever 20 by a predetermined elastic force. The elastic plate 23 is supported by a post 23a formed on the lower surface of the deck De to enable elastic deformation.

The greening safety lever 20 has a support plate 24 formed to maintain a horizontal state with the elastic plate 23. The support plate 24 is formed to be selectively contactable with a first pusher 30 formed on one side of the connect plate Cp, that is, on the left side.

Accordingly, the support plate 24 rotates the greening safety lever 20 about the shaft 10 of the deck De while selectively contacting the first pusher 30 according to the movement of the connect plate Cp. . The first pusher 30 is integrally formed by bending downward from the lower surface of the connect plate Cp.

Meanwhile, the greening safety lever 20 selectively contacts the second pusher 31 formed to be spaced apart from the first pusher 30 of the connector plate Cp by a predetermined distance, and centers the shaft 10 of the deck De. The second pusher 30 is integrally formed by bending downward from the lower surface of the connect plate Cp.

Here, the first pusher 30 rotates the recording safety lever 20 when loading and ejecting the cassette Ca, and the second pusher 31 executes modes such as playing and recording the cassette Ca. The recording safety lever 20 is rotated. That is, since the connect plate Cp is moved according to the execution of each mode, the first and second pushers 30 and 31 selectively rotate the greening safety lever 20 correspondingly.

The state where the head 22 of the recording safety lever 20 is in contact with the erasing prevention tab Ct of the cassette Ca or inserted into the erasing preventing hole Ch is called a sensing position. The state in which the head 22 of the lever 20 is positioned away from the erasing prevention tab Ct of the cassette Ca is called a release position.

Then, the other end of the recording safety lever 20 is formed with the operation piece 25, the operation piece 25 is a button of the mode switch (mode switch: 40) in accordance with the rotation of the recording safety lever 20 Press 41) to output the switching signal. At this time, the greening safety lever 20 is the second pusher 31 of the connect plate (Cp) is positioned in the opposite direction of the operating piece 25, the mode switch 40 is a print that is installed below the deck (De) It is installed in the circuit board 45.

In addition, the switching signal of the mode switch 40 is input to the controller 50, and the controller 50 determines whether the cassette Ca can be recorded based on the input switching signal, and according to the input of the recording mode, the cassette Ca Execute the recording mode state of).

On the other hand, the controller 50 executes the corresponding mode set by the operation of the key input unit 55, for example, power, recording and playback, rewinding and fast forwarding, loading and ejecting. Here, the controller 50 may be configured by a general microcomputer, and the key input unit 55 may be configured by a key matrix constituted by a plurality of function selection buttons. The function selection buttons comprise, for example, power, recording and playback, rewind and fast forward buttons, loading and ejecting buttons, and the like.

Referring to FIGS. 4A and 4B, when the cassette Ca starts to be loaded as described above, in step S101, the connect plate Cp is moved to the left direction under the control of the controller 50. In response to the movement of the connect plate Cp, the first pusher 30 pushes the support plate 24 of the greening safety lever 30 to the left. As a result, the recording safety lever 20 is rotated about the shaft 10 of the deck De to be operated in a release position. At this time, the elastic plate 23 of the recording safety lever 20 is connected to the post (decks) of the deck De. It is supported by 23a) and elastically deformed.

Therefore, the head 22 of the recording safety lever 20 is located away from the erasing preventing tab Ct or the erasing preventing hole Ch, so that the load acted by mechanical contact when the cassette Ca is loaded. Is removed.

Also, after the recording safety lever 20 is operated to the release position, the control section 50 determines whether the loading of the cassette Ca has been completed in step S102. At this time, if it is determined that the loading of the cassette Ca is not completed, the loading of the cassette Ca is performed again.

When it is determined that the loading of the cassette Ca is completed, the connector plate Cp is moved to the right direction under the control of the controller 50 in step S103, and the recording is performed in accordance with the movement of the connector plate Cp. The first pusher 30 is separated from the support plate 24 of the safety lever 20. As a result, while the elastic plate 23 is restored to its original state, the greening safety lever 20 is rotated about the shaft 10 of the deck De to operate in the sensing position.

After the recording safety lever 20 is rotated to the sensing position in this manner, the recording mode is input by the operation of the key input unit 55 in step S104. At this time, if a recording mode is not input and another mode is input in step S105, for example, a play, rewind, and fast forward mode are input, the corresponding mode set in step S! 06 is executed.

On the other hand, if the recording mode is input, it is determined whether the erasing preventing tab Ct of the cassette Ca has been removed in step S107. In this case, when the erasing preventing tab Ct of the cassette Ca is not removed, Recording is performed. That is, as the head 22 of the recording safety lever 20 is in contact with the erasing prevention tab Ct of the cassette Ca, the operation piece 25 of the recording safety lever 20 is connected to the button of the mode switch 40. By being located away from 41, the recording is performed by the control of the controller 50.

When the erasing prevention tab Ct of the cassette Ca is removed, whether or not recording is performed on the screen is displayed in step S108, and the display of the screen may be implemented by a general television. At this time, the user can select whether or not to record by manipulating the key input unit 55. Here, the character information of the display may be sufficient, for example, "the cassette's anti-recording mode is activated. Do you want to record?"

In addition, if the recording prevention release mode is set by the key input unit 55 in step S109, this is determined by the control unit 50. In this case, if the recording protection release mode is not set, recording is disabled by turning on the recording protection mode in step 110, and the user may set another mode by an operation of the key input unit 55.

When the recording release mode is set by the operation of the key input unit 55, the recording safety lever 20 is operated to the recording mode position. That is, as the connect plate 30 is moved to the right direction by the control of the controller 50, the second pusher 31 pushes one side of the greening safety lever 20, that is, the opposite direction of the operating piece 25. . As a result, the recording safety lever 20 is rotated about the shaft 10 of the deck De to press the button 41 of the mode switch 40, and the switching signal of the mode switch 40 is controlled by the controller ( 50).

As described above, when the recording safety lever 20 is operated to the recording mode position and the switching signal of the mode switch 40 is input to the controller 50, the recording prevention mode is turned off in step S112 and the recording of step S113 is performed. Is executed.

On the other hand, in step S114, it is determined whether the ejecting mode of the cassette Ca is input during recording of the cassette Ca. If the ejecting mode is input by the operation of the key input unit 55, in step S114. The recording of the cassette Ca is stopped. In this case, the user may execute the recording stop mode by the operation of the key input unit 55 in addition to the ejecting mode, and may execute another mode after the recording stop mode is executed.

Further, after the execution of the recording stop mode is completed, in step S116, the first pusher 30 rotates the recording safety lever 20 to operate again to the release position in accordance with the transfer of the connect plate Cp described above.

In this way, after the recording safety lever 20 is operated to the release position, the cassette Ca is ejected in step S117, and step S118 determines whether the ejection of the cassette Ca has been completed. Here, when the recording safety lever 20 is operated to the release position, the head 22 of the recording safety lever 20 is positioned away from the erasing preventing tab Ct or the erasing preventing hole Ch, so that the cassette When ejecting (Ca), the load acting by mechanical contact is eliminated.

Therefore, the present invention can easily perform recording as necessary even in a state where the erasing preventing tab Ct of the cassette Ca is removed, thereby making the product more convenient to use. In addition, since the recording safety lever 20 is operated to the release position by a simple mechanical configuration and structure, the load is removed during the loading and ejecting of the cassette Ca, thereby preventing malfunction of the driving mechanism, thereby significantly increasing the reliability of the product. Is improved.

On the other hand, the above-described embodiment is merely described one preferred embodiment of the present invention, the scope of application of the present invention is not limited to such, and can be changed as appropriate within the scope of the same idea.

As described above, according to the method and apparatus for releasing the recording of the tape recorder according to the present invention, the recording can be easily performed as necessary even when the erasing prevention tab of the cassette is removed. In addition, the simple mechanical configuration and structure of the recording safety lever is operated to the release position, the load is removed during the loading and ejecting of the cassette to significantly improve the reliability of the product.

Claims (4)

Loading a cassette; Operating the recording safety lever to the release position when the cassette is loaded; Determining whether loading of the cassette is completed; Operating the recording safety lever to the sensing position when loading of the cassette is completed; Inputting a recording mode by an operation of a key input unit; Judging whether the erasing prevention tab of the cassette has been removed by the input of the recording mode; Displaying whether recording is performed on the screen when the erasing prevention tab is removed; Determining whether the recording protection release mode has been selected by operation of the key input unit; Operating the recording safety lever to the recording mode position; Turning off the recording prevention mode by the operation of the recording safety lever; Executing recording by turning off the recording protection mode; Inputting a cassette ejecting mode by operation of a key input unit; Stopping recording by input of the cassette ejecting mode; Operating the recording safety lever to the release position when the recording of the cassette is stopped; Ejecting a cassette when the recording safety lever is operated to a release position; And determining whether ejecting of the cassette is completed. A deck is provided with a holder for loading and ejecting a cassette along horizontal and vertical sections of the housing, a head drum for recording or playing back on a tape of the cassette traveling along a traveling system, and a lower surface of the deck. A tape recorder including a connect plate installed to be movable in accordance with mode switching, An arm having a head mounted freely rotatable about an axis of the deck, the head having a head contacting an anti-deletion tab of the cassette or fitted into an anti-deletion hole, and supported on one side of the deck by a post A greening safety lever having an elastic plate extending to enable elastic deformation, a support plate formed to maintain a horizontal state with the elastic plate, and a working piece formed at the other end thereof; A first pusher formed on one side of the connect plate to selectively contact the support plate of the greening safety lever to rotate the greening safety lever; A second pusher which is formed at a distance from the first pusher on the connect plate so as to be in contact with one side of the recording safety lever so as to be rotated in the opposite direction to the operating piece so as to rotate the recording safety lever; A mode switch for selectively pressing the button by the operating piece according to the rotation of the recording safety lever to output a switching signal; And a control unit which determines the recording mode input by the switching signal input from the mode switch and the operation of the key input unit, and executes recording of the cassette. 3. The support plate according to claim 2, wherein the support plate of the greening safety lever is pushed by the first pusher so that the head thereof is operated in a release position away from the anti-erasing tab or anti-erasing hole when loading and ejecting the cassette. An anti-recording device of a tape recorder, characterized in that it is formed. The method of claim 2, wherein the operation piece of the recording safety lever is configured to turn off the recording protection mode by pressing a button of the mode switch when the recording mode is input while the erasing prevention tab of the cassette is removed. Tape recorder release device.

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