JPS6323797Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rewind device used for rewinding a cassette tape, and particularly relates to a rewind device having an eraser function.

Conventionally, a rewind device has been used exclusively for rewinding a cassette tape. Furthermore, some rewind devices are combined with an erase head and have an additional function as an eraser.

However, with devices that have an eraser function, if you accidentally activate the eraser function when you set a cassette tape with a broken eraser tab, there is a risk that the tape contents will be erased by mistake and important recordings will be lost. It was hot.

This invention was made in order to eliminate the above-mentioned drawbacks, and is a rewind device having an eraser function that can reliably prevent erroneous erasure of a cassette tape by providing a detection member that detects the presence or absence of a claw for preventing erroneous erasure of a cassette tape. The purpose is to provide

An embodiment of this invention will be described below with reference to the drawings.

In Fig. 1, 1 is the rewind device main body;
The main body 1 has a cassette loading section 11 on its upper surface, and a pair of reels 21, 22 and a switch section 3 are provided on this upper surface. In this case, a pair of reels 21, 2
2 are rotated at high speed in the same direction by a drive source (not shown), such as a motor. Further, the switch section 3 has an operation stick 31 and a switch main body 32 as shown in FIG. 3, and when the operation stick 31 is pressed, the switch main body 32 is turned on to turn on the power to the motor and start the motor. That's what I do.

The main body 1 is provided with a lid 4 that can be opened and closed. When closed, the lid 4 covers the cassette loading section 11 of the main body 1 and allows the operating rod 31 of the switch section 3 to be pressed. Further, the lid 4 is provided with an erasing head 5. This erasing head 5 is inserted into the cassette loading section 1 by closing the lid 4.
This device is placed close to the tape surface of a cassette tape set at 1 and erases the tape contents during rewinding. In this case, as the erasing head 5, either a half-track erasing head made of a magnetic piece 51, only half of which is made of a magnetic piece 51, as shown in FIG. Good too.

On the other hand, a detection member 6 is provided on the side surface of the main body 1 for detecting the presence or absence of a claw for preventing accidental erasure of the cassette tape. This detection member 6 consists of a leaf spring 61 and a detection piece 62. The tip of the detection piece 62 is bent at a substantially right angle to form a lid receiving part 621, and a part in the middle of the detection piece 62 is provided to prevent the cassette tape from being accidentally erased. A protrusion 622 is formed to detect the presence or absence of a claw.

In such a rewind device, the main body 1
A cassette tape having a claw for preventing accidental erasure is loaded into the cassette loading section 11 on the upper surface. In this case, as shown in FIG. 2a, since the cassette tape 7 has a claw 71 for preventing accidental erasure, the protrusion 622 of the detection piece 62 of the detection member 6 comes into contact with the claw 71, causing the leaf spring 61 to bend. The closing lid receiving part 621 is separated from the main body 1. Therefore, when the lid 4 is closed in this state, the lid 4 can be completely closed without being obstructed by the lid holder 621, so that the operation stick 31 of the switch part 3 can be closed as shown in FIG. 3a. When pressed, the switch body 32 turns on. As a result, the power to the motor is turned on, and the reel 21,
22 rotates, the tape 72 of the cassette tape 7 is rewound, and at the same time, the tape contents are erased by the erasing head 5.

Next, when a cassette tape with a broken claw for preventing accidental erasure is loaded, as shown in FIG. 2b, the detecting member 6
The detection piece 62 has a protrusion 622 that is connected to the cassette tape 7.
The cover holder 621 is located above the main body 1 while keeping the leaf spring 61 in a straight line. Therefore, when the lid 4 is closed in this state, the lid 4 comes into contact with the lid holder 621 and cannot be closed. As a result, as shown in FIG. 3B, the switch main body 32 of the switch section 3 is not turned on and the power is turned on, thereby preventing the rewinding operation and preventing erroneous erasure of the cassette tape 7.

If you only want to rewind the cassette tape, press the operation lever 31 of the switch section 3 with the lid 4 open to turn on the switch body 32, and the tape will be rewound without erasing the tape contents. can. Of course, a power switch exclusively for rewinding may be provided in addition to the switch section 3.

Therefore, with this configuration, by detecting the presence or absence of a claw for preventing accidental erasure on the cassette tape, it is possible to rewind the tape and erase the contents of the tape using the erasing head only for cassette tapes that have claws, thereby preventing accidental erasure. It is possible to reliably prevent erroneous erasure of a cassette tape with a broken nail, and to prevent loss of important recorded contents.

It should be noted that this invention is not limited to the above-mentioned embodiments, but can be implemented with appropriate modifications without changing the gist.

As described above, according to this invention, it is possible to provide a rewind device having an eraser function that can reliably prevent erroneous erasing of a cassette tape by providing a detection member for detecting the presence or absence of an erroneous erasing claw on a cassette tape.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of this invention, Figs. 2 a, b, and 3 a, b are for explaining the same embodiment, respectively. 2 is a schematic diagram of the configuration when a cassette tape with a tab for preventing accidental erasure is loaded, and FIGS. , 4 and 5 are perspective views of the erasing head used in the same embodiment, respectively. 1...Main body, 11...Cassette loading section, 21,
22... Reel, 3... Switch part, 31... Operation stick, 32... Switch body, 4... Lid body, 5...
... Erasing head, 51 ... Magnet piece, 6 ... Detection member, 61 ... Leaf spring, 62 ... Detection piece, 62
DESCRIPTION OF SYMBOLS 1...Lid holder, 622...Protrusion, 7...Cassette tape, 71...Claw for preventing accidental erasure.

Claims (1)

[Claims for Utility Model Registration] (1) A main body having a cassette loading section provided with a pair of reels, a switch section provided on the main body for activating a drive source for the reels, and an erasing head for starting the drive source for the reels. and a detection member capable of detecting the presence or absence of a claw for preventing accidental erasure of the cassette tape loaded in the cassette loading section and preventing the lid from operating the switch section. A rewind device characterized by: (2) The lid body is provided on the main body so as to be openable and closable;
The rewind device according to claim 1, which covers the cassette loading section and allows the switch section to be operated. (3) The detection member has a detection piece formed with a lid receiving part and a protrusion for detecting a claw, and since the cassette tape does not have a claw, the lid receiving part prevents the lid from operating the switch part. A rewind device according to claim 1 or 2 of the utility model registration claim, characterized in that: