JPH0478048A - Magnetic recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording and reproducing apparatus for recording and reproducing video, audio, or digital information signals using a cassette tape.

2. Description of the Related Art In recent years, it has become desirable to record and reproduce video or audio over long periods of time, and depending on the purpose, thick or thin tapes are used in recording and reproducing apparatuses. In such cases, particularly sophisticated tape running techniques are desired when using thin tapes.

Conventionally, this type of cassette tape magnetic recording and reproducing apparatus does not include a tape thickness pressure measuring device, so the tape is run with the same tape length even if the tape thickness changes.

Furthermore, even with thin tapes that must be handled with the utmost care, it is difficult to determine the thickness of the tape currently in use, and as with thick tapes, there are cases where the tapes are used roughly.

Problems to be Solved by the Invention In such conventional magnetic recording and reproducing devices, even when using a thin tape, the tape is run with strong tape tension/contact that is suitable for thick tape. Since the thickness of the tape was not known, the cassette tape magnetic recording/reproducing device was operated roughly in the same way as with conventional thick tapes, often resulting in damage to the tape.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a cassette tape magnetic recording and reproducing apparatus that can maintain high tape quality by displaying the tape thickness.

Means for Solving the Problems In order to achieve the above objects, the present invention provides a tape thickness identification hole provided in a cassette, a switch linked to closing or penetration of the identification hole, and a tape running system controlled by the switch. and a display section that indicates the tape thickness depending on the state of the switch, the tape running system applies tension to the tape corresponding to the tape thickness, and the display section is located at a position where it can be monitored from outside the device to indicate when the device is in use. The tape is arranged to indicate the thickness of the tape.

Effect of the present invention With the above-described configuration, the tape running system applies tension to the tape suitable for the thickness of the tape used, the tape thickness display section clearly displays the thickness of the tape used, and damage to the tape can be prevented. It is.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 4.

In Figure 2, 21 is the upper half 7L of the cassette;
22 is lower half nonyl. Reference numeral 23 is a tape thickness identification hole, and in the case of the figure, the hole is penetrating. 26 is a tape thickness identification microswitch, and 2425 is a switch lever. The illustrated position of the switch lever 24 indicates the switch off state, and the illustrated position of the switch lever 25 indicates the switch on state.

FIG. 3 is a plan view of the cassette viewed from the back side, showing the position of the tape thickness identification hole 23.

FIG. 1 is a block diagram of the tape running system.

The tape thickness identification microswitch 26 is connected to the tape thickness identification hole 2.
It is turned on or off by closing or penetrating 3. Reference numeral 30 denotes a display section that displays the tape thickness on the outer surface of the device, such as the front section, which can be easily seen from the outside according to whether the microswitch 26 is turned on or off. 31 and 32 are drive circuits for the take-up reel and the supply reel. 33 and 34
are the take-up reel motor and the supply reel motor.

The output torque of the take-up reel motor 33 and the supply reel motor 34 is changed by turning on and off the microswitch 26, and in the case of a thin tape, the torque is lowered, and the tape tension is optimized according to the tape thickness. Similarly, during recording and reproduction and during fast forwarding and rewinding, the torque is set accordingly.

FIG. 4 is a plan view of the front panel. 61 is a front panel. 62.63 is the “thickness” of the tape
, the display section 30 is composed of a display board representing "thin". In the case of thick tape, the issuing diode (not shown) inside the display board 62 lights up, and in the case of thin tape, the issuing diode (not shown) inside the display board 63 lights up, indicating which tape is currently in use. Display thickness.

As described above, according to the magnetic recording/reproducing apparatus of the embodiment of the present invention, the thickness of the tape in use is displayed on the display section, so it can be checked whether the tape tension is set to the optimum value according to the thickness of the tape. Moreover, operations can be performed according to the tape thickness, and damage to the tape can be prevented.

Effects of the Invention As is clear from the above explanation, according to the present invention, the tape thickness identification hole is provided in the cassette and the thickness of the tape in use is displayed on the front panel, so that the tape tension/container can be easily adjusted. It is possible to provide a magnetic recording and reproducing device that can confirm that the tape is optimal, identify the thickness of the tape in use, and perform operations according to the thickness of the tape, thereby preventing damage to the tape.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the tape running system of a recording and reproducing apparatus according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view of the cassette.
FIG. 3 is a plan view of the back side of the cassette, and FIG. 4 is a plan view of the front panel. 26... Tape thickness identification number, 23.
...Tape thickness identification hole, 30...Display section, 3
1...Take-up reel drive circuit, 32...
- Supply reel drive circuit, 33... Take-up reel motor, 34... Supply reel motor, 1... Freon panel, Figure 3... Display board.

Claims (1)

[Claims] The cassette includes a tape thickness identification hole provided in the cassette, a switch that is linked to closing or penetration of the identification hole, a tape running system controlled by the switch, and a display section that indicates the tape thickness depending on the state of the switch, A magnetic recording and reproducing apparatus, wherein the tape running system applies tension to the tape corresponding to the tape thickness, and the display section is located at a position that can be monitored from outside the apparatus and is arranged to indicate the tape thickness in use.