JPS6168752A - Cassette tape recorder device - Google Patents

Abstract

PURPOSE:To reduce the titled device in size through simple constitution without any restriction of a wrong erasure preventing mechanism by moving a wrong erasure preventing member through external operation to a position where a slider for sound recording is permitted to move. CONSTITUTION:When a tape cassette with a wrong erasure preventive claw is loaded,the claw pressed the detection piece 27a of the wrong erasure preventing member 27 and the detection piece 27a rotates as shown by an arrow J, so that its stopper 27b is disengaged from the lock piece 28a of the sound recording slider 28. Consequently, when a sound recording operating element 22 is operated, the sound recording slider 28 is slid in a direction K to performs sound recording. Further, when a tape cassette having no wrong erasure preventive claw is loaded, the sound recording slider 28 does not slide in the direction K even when the sound recording operating element 22 is operated, so that sound recording is not performed. When the operating element 30 is operated without any loaded tape cassette, the wrong erasure preventing member 27 is rotated as shown by the arrow J and moves off the movement pat of the sound recording slider 28, so a subcabinet 19 can be slid in a direction F, thereby reducing the size.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cassette tape recorder device intended for miniaturization, and particularly to one that promotes miniaturization in relation to its erroneous erasure prevention mechanism.

[Technical Background of the Invention] As is well known, cassette tape recorders are small and portable, and can also be used with headphones.
Way stereo type devices are becoming popular, and there are devices that allow you to enjoy tape playback while walking, for example, by wearing headphones.

And, such a small cassette tape recorder,
At present, tape cassettes smaller than compact tape cassettes (hereinafter referred to as tape cassettes) have already appeared. When the tape cassette is installed, it supports the part of the tape cassette from the area around the reel hub to the part where the insertion holes for the head, capstan, pinch roller, etc. are formed, and prevents the peripheral side of the tape cassette from protruding. This is what we do.

By the way, cassette tape recorder devices generally have
Regardless of whether the cassette tape is miniaturized or large, it is equipped with an erroneous erasure prevention groove in order to prevent erroneously recording a new recording on an already recorded cassette tape.

FIG. 4 shows such a conventional erroneous erasure prevention groove. That is, 11 in the figure is the main chassis on which the tape recorder Akebonohashi part is mounted, and the accidental erasure prevention claw detection member 1
2 is rotatably supported around a shaft 12a. A detection piece 12b is provided at one end of this accidental erasure prevention pawl detection member 12 through a notch 11a formed in the main chassis 11, and is opposed to an accidental erasure prevention pawl of a tape cassette (not shown).
is formed. In addition, the above-mentioned accidental erasure prevention claw detection member 1
The other end of 2 is connected to the erroneous erasure prevention member 1 via the Orad 13.
It is connected to one end of 4.

The erroneous erasure prevention member 14 is rotatably supported by the main chassis 11 about a shaft 14a, and is normally biased to rotate in the direction of the arrow in the figure by a torsion spring 15. The erroneous erasure prevention member 14 is rotated in the direction of the arrow in the figure by the torsion spring 15 until it reaches the position shown, and at this position the stopper 14b formed at the other end of the erroneous erasure prevention member 14 stops recording. It is located at a position opposite to a locking piece 16a protruding from the slider 16.

The recording slider 16 is supported by the main chassis 11 so as to be slidable in the direction of the arrow C9D in the figure, and is moved in the direction of the arrow C9D in the figure by the operation of a recording operator (not shown). , which has the ability to put the tape recorder into recording mode.

For this reason, when the tape cassette (recording is not possible due to the accidental erasure prevention claw being removed) is installed, the stopper 14b of the accidental erasure prevention member 14 and the locking piece 16a of the recording slider 16 remain in an opposing state. Even if the recording operator is operated, the recording slider 16 will not slide in the direction of the arrow in the figure, and recording will not be performed. Further, when a tape cassette whose erroneous erasure prevention claw has not been removed (recordable) is loaded, the detection piece 12b of the erroneous erasure prevention claw detection member 12 is pressed by the erroneous erasure prevention claw. Then, the accidental erasure prevention member 14 is rotated in the direction of arrow B in the figure through the rod 13 against the biasing force of the torsion spring 15, and its stopper 14b engages the locking piece 16 of the recording slider 16.
The position is not opposite to a. Therefore, when the recording operator is operated, the recording slider 16 is moved in the direction of the arrow in the figure, and recording begins.

[Problems with the Background Art] However, in the conventional erase prevention device groove as described above, the mounting position of the accidental erasure prevention claw detection member 12 is such that it does not interfere with the mounting of the tape cassette and is not attached to the accidental erasure prevention claw of the tape cassette. Since they are required to be in one opposing position, the mounting positions of the accidental erasure prevention claw detection member 12 are naturally limited, which poses a problem in that miniaturization of the cassette tape recorder is hindered.

[Object of the Invention] This invention has been made in consideration of the above circumstances, and is constrained by the accidental erasure prevention machine groove, and has a simple configuration that effectively promotes miniaturization. The purpose of the present invention is to provide a cassette tape recorder device that is easy to use.

[Summary of the Invention] That is, the cassette tape recorder device according to the present invention is configured to perform an expansion/contraction action by slidably fitting the sub-cabinet into the main cabinet, so that a tape cassette can be installed in the expanded state. a cabinet, a recording movable member provided in the cabinet that moves to put the tape recorder in a recording state when a recording operator is operated, and a tape cassette provided with an accidental erasure prevention claw, depending on the presence or absence of the tape cassette. a first position in which the movable recording member is removed from the movement path of the recording movable member to allow movement of the recording movable member; and a first position that is interposed in the movement path of the recording movable member to prevent movement of the recording movable member. The present invention further includes an erroneous erasure prevention member that is moved to the second position, and an operation member that moves the erroneous erasure prevention member to the first position by an external operation to enable reduction of the cabinet. Erasing prevention is not subject to any restrictions, and has a simple configuration that effectively promotes miniaturization.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In Fig. 1, 17 is a cabinet for a cassette table recorder, and a soil cabinet 18,
The sub-cabinet 1 is fitted to the main cabinet 18 so as to be slidable in the directions of arrows E and F in the figure.
9, and is configured to be expandable and retractable as a whole. Here, the cabinet 17 is configured to be smaller than a tape cassette (not shown) in a reduced state as shown in FIG. 1, that is, with the 01 cabinet 19 pushed in the direction of arrow F. be. This cabinet 17 is in the extended state shown in FIG.
In other words, with the sub-cabinet 19 pulled out in the direction of the arrow E, the tape cassette can be loaded into the sub-cabinet 19.

Here, the main cabinet 18 has arrows G and H in the figure.
A cassette lid 20 is supported rotatably in the direction. This cassette lid 20 includes a playback operator 21° and a recording operator 2.
2. Stop operator 23. Tape high speed running operator 24. A power lamp 25, a tape see-through window 26, etc. are provided.

In the sub-cabinet 19, there is installed an accidental erasure prevention mechanism as shown in FIG.

In FIG. 3, reference numeral 27 denotes an erroneous erasure prevention member, which is supported by a shaft 19a protruding from the sub-cabinet 19 so as to be rotatable in the force direction of arrow iJ in the figure.

A detection piece 27a is formed at one end of the erroneous erasure prevention member 27, which faces the erroneous erasure prevention claw of the tape cassette. Further, at the other end of the erroneous erasure prevention member 27,
A stopper 27b is formed opposite to a locking piece 28a protruding from the recording slider 28.

Here, the erroneous erasure prevention member 27 is normally biased to rotate in the direction of the arrow {circle around (2)} by a torsion spring 29.

When the erroneous erasure prevention member 27 is rotated in the direction of the arrow 1 by the torsion spring 29, one side 27c of the erroneous erasure prevention member 27 comes into contact with a protrusion 19c provided on the side 19b of the sub-cabinet 19. It has been made up to the position where
At this position, the stopper 27b of the accidental erasure prevention member 27 is opposed to the locking piece 28a of the recording slider 28.

Further, the recording slider 28 is connected to the sub-cabinet 1.
It is supported by a main chassis (not shown) on which a tape recorder mechanism is mounted, for example, so that it can be slid in the same direction as the slide direction of 9, that is, in the direction of the arrow in the figure, and in the L direction. It has the ability to move and slide in the direction of the arrow to put the tape recorder into recording mode. That is, in the state shown in FIG. 3, the stopper 27b of the erroneous erasure prevention member 27
is interposed in the movement path of a locking piece 28a formed on the recording slider 28.

Furthermore, on one side 27c of the erroneous erasure prevention member 27,
An engagement piece 27d parallel to the side part 19b of the sub-cabinet 19
is formed. This engagement piece 27d is engaged with an operator 30 installed on the side portion 19b of the sub-cabinet 19.

First, when a tape cassette whose accidental erasure prevention claw has been removed (recording is not possible) is installed, the accidental erasure prevention member 27
Since the stopper 27b remains opposed to the locking piece 28a of the recording slider 28, the recording slider 28 will not slide in the direction of the arrow in the figure even if the recording operator 22 is operated, and recording will not be made. . In addition, when a tape cassette whose accidental erasure prevention claw has not been removed (recordable) is inserted, the accidental erasure prevention claw will cause the accidental erasure prevention member to
No. 7 detection piece 27a is pressed. Then, the erroneous erasure prevention member 27 is rotated in the direction of arrow J in the figure against the biasing force of the torsion spring 29, and the stopper 27b is placed in a position where it does not oppose the locking piece 28a of the recording slider 28. Therefore, when the recording operator 22 is operated, the recording slider 28 is moved in the direction indicated by the arrow in the figure, and recording begins.

Here, when the tape cassette is not attached, for example when being carried around, the operator 30 is operated.

Then, the operator 30 engages the engagement piece 27 of the accidental erasure prevention member 27.
d, the accidental erasure prevention member 21 is rotated in the direction of arrow J in the figure against the biasing force of the torsion spring 29, and its stopper 27b is placed in a position where it does not oppose the locking piece 28a of the recording slider 28. . Therefore, as shown in FIG. 1, the sub-cabinet 19 can be slid in the direction of the arrow F, and can be made smaller.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

[Effects of the Invention] Therefore, as detailed above, according to the present invention, there is provided an extremely good cassette tape recorder device that is not limited by the accidental erasure prevention mechanism and can effectively promote miniaturization with a simple configuration. can be provided.

[Brief explanation of drawings]

10 and 2 are perspective views showing an embodiment of the cassette tape recorder device according to the present invention, FIG. 3 is a perspective view showing essential parts of the embodiment, and FIG. 4 is a conventional cassette tape recorder device. FIG. DESCRIPTION OF SYMBOLS 11... Main chassis, 12... Accidental erasure prevention claw detection member, 13... Rod, 14... Accidental erasure prevention member, 15... Torsion spring, 16... Recording slider, 17...・Kisebinet, 18... Main cabinet, 19... Sub-cabinet, 20... Cassette lid, 21... Playback operator, 22... Recording operator,
23... Stop operator, 24... Operator for tape high-speed running 1 time, 25... Power lamp, 26... Tape see-through window, 27... Accidental erasure prevention member, 28... Recording Slump, 29... Torsion spring, 30... Operator.

Claims (1)

[Claims] A cabinet is configured to extend and contract by slidably fitting a sub-cabinet into the main cabinet, and a tape cassette can be installed in the extended state. a recording movable member that moves to put the tape recorder in a recording state; and a recording movable member that is separated from the movement path of the recording movable member depending on the presence or absence of an accidental erasure prevention claw provided on the tape cassette. an erroneous erasure prevention member that is moved to a first position that allows movement of the member and a second position that is interposed in the movement path of the recording movable member and prevents movement of the recording movable member; A cassette tape recorder device comprising: an operation member that moves the prevention member to the first position by an external operation to enable reduction of the cabinet.