JPS6334127Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape recorder in which a tape drive mechanism is provided in and out of a housing section of the main body of the device.

Recently, a tape drive mechanism section is provided so that it can be moved in and out of a storage section of the main body of the device, and when the tape drive mechanism section is pulled out from the storage section, a cassette can be inserted into and removed from the tape drive mechanism section. Tape recorders with this type of technology are now in the spotlight.

The present invention relates to such a tape recorder, and is configured to detect whether or not a cassette is attached to the tape drive mechanism to control the operation of the tape recorder in an extremely suitable manner. .

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

1 in the figure is the main body of the device, which has a storage section 2;
A rack gear 3 is provided on one side of the storage section 2 and is engaged with an operating gear of a tape drive mechanism section, which will be described later. 4 is a storage section 2 of the device main body 1;
A tape drive mechanism section is provided to be able to move in and out of the tape drive mechanism section 4. On the upper surface of the tape drive mechanism section 4, a reel shaft 5,
5, a capstan 6, etc. are protrudingly provided, and an operating gear 7 that meshes with the rack gear 3 is rotatably supported 8 on the lower surface thereof. Therefore, the operating gear 7 can be rotated manually or by a motor or the like. By doing so, the tape drive mechanism section 4 can be moved in and out of the storage section 2. Reference numeral 9 denotes a magnetic head 11 and a pinch roller 12 which are provided on the upper surface of the tape drive mechanism section 4 to move between two positions, a non-playing position and a playing position, and which are always urged toward the playing position by a spring 10. The movable slide plate 9 is formed with a central opening 13 for avoiding the reel shafts 5, 5, capstan 6, etc. protruding from the upper surface of the tape drive mechanism section 4, and also for detection, which will be described later. A contact portion 9a that comes into contact with the locking portion of the lever and a cutout portion 9b into which the locking portion fits are formed. Reference numeral 14 denotes a detection lever for detecting whether or not the cassette 16 is mounted on the cassette mounting section 15 from which the reel shafts 5, 5, etc. of the tape drive mechanism section 4 are protruded; It is freely pivoted 17 and its locking portion 14a is connected to the abutting portion 9 of the movable slide plate by a spring 18.
The detecting portion 14b is always rotated counterclockwise so as to protrude into the moving path of the reel a, and the detecting portion 14b thereof protrudes into the cassette mounting portion 15 from which the reel shafts 5, 5, etc. are protruded. . Reference numeral 19 denotes a control lever which is rotatably supported by a shaft 20 on the tape drive mechanism section 4, and has an abutment pin 22 implanted at one end 19a thereof which abuts against the movable slide plate 9 through a through hole 21. The control lever 19 is always rotated counterclockwise by a spring 23 to hold the movable slide plate 9 in the non-playing position against the urging force of the spring 10 by its contact pin 22. has been done. 24 is the control lever 19 when the tape drive mechanism section 4 is inserted into the storage section 2.
A control pin that contacts the other end 19b and rotates the control lever 19 counterclockwise against the biasing force of the spring 23 so that the contact pin 22 separates from the movable slide plate 9. It is planted on the main body 1 side. In addition, 25 is the movable slide plate 9.
a positioning section that positions the instrument at its performance position;
The tape drive mechanism section 4 is provided in a protruding manner.

The tape recorder of the present invention is constructed as described above. Next, its operation will be described.

First, when the cassette 16 is not attached to the cassette attachment section 15 of the tape drive mechanism section 4, the detection section 14b of the detection lever 14 protrudes into the cassette attachment section 15, and the locking section 14a of the detection lever 14 protrudes into the cassette attachment section 15. It is located at the dotted line position in FIG. 1, facing the contact portion 9a of the movable slide plate 9. Therefore, when the tape drive mechanism section 4 is inserted into the storage section 2 in such a state through the meshing relationship between the rack gear 3 and the operating gear 7, the control lever 19 is moved by contact with the control pin 24. The contact pin 22 is rotated counterclockwise against the biasing force of the spring 23.
In order to release the engagement between the movable slide plate 9 and the movable slide plate 9,
The movable slide plate 9 tries to move from the non-performance position to the predetermined performance position by the urging force of the spring 10, but as shown in FIG. Since the pinch roller 12 contacts the capstan 6, the pinch roller 12 stops at the dotted line position in FIG.

Therefore, it is possible to prevent the pinch roller 12 and the capstan 6 from being inadvertently pressed together when the cassette is not attached.

Next, when the cassette 16 is mounted on the cassette mounting section 15 of the tape drive mechanism section 4, the detection section 14 is inserted into the cassette mounting section 15.
The detection lever 14, which had been energized so as to protrude, is moved from the position where its locking portion 14a faces the contact portion 9a of the movable slide plate 9 due to the contact between the detection portion 14b and the rear end portion of the cassette 16. It is rotated from the dotted line position in FIG. 2 facing the notch 9b to the solid line position. Therefore, when the tape drive mechanism section 4 is inserted into the storage section 2 in such a state through the meshing relationship between the rack gear 3 and the operating gear 7, the control lever 19 is brought into contact with the control pin 24 and Since the movable slide plate 9 is rotated counterclockwise to release the engagement between the abutment pin 22 and the movable slide plate 9, the pinch roller 12 is moved from the non-playing position by the biasing force of the spring 10. It moves to a predetermined performance position where it is crimped onto the capstan 6 (solid line position in Figure 2).

Therefore, when a cassette is installed, the movable slide plate 9 can be immediately moved to a predetermined performance position as the tape drive mechanism section 4 is inserted into the storage section 2.

In this embodiment, the control lever 19 and its biasing spring 23 are arranged on the tape drive mechanism section 4 side, and the control pin 24 that comes into contact with the control lever 19 is arranged on the device main body 1 side. However, we are not particularly particular about such positional relationships.
Further, the detection lever 14 may also be used as a means for pressing the cassette.

As described above, according to the tape recorder of the present invention, there is a main body of the device having a storage section, and a tape that is provided so as to be freely removable in and out of the storage section, and has a reel shaft, capstan, etc. protruding from the cassette mounting section on the upper surface side of the tape recorder. a drive mechanism, a movable member provided in the tape drive mechanism to move between two positions, a non-performance position and a performance position, and in which the magnetic head contacts the tape and presses the pinch roller against the capstan in the performance position; Control for moving the movable member from a non-performance position to a performance position when the tape drive mechanism is inserted into the storage section, and moving the movable member from the performance position to the non-performance position when the tape drive mechanism is pulled out. and a detection member that detects whether or not a cassette is attached to the cassette attachment portion of the tape drive mechanism section and prevents the movable member from moving to the performance position when the cassette is not attached. Even if the tape drive mechanism section is inserted into the storage section with no cassette attached, there is no risk of the pinch roller being inadvertently pressed against the capstan.

Therefore, the present invention is practically useful for protecting pinch rollers and the like.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIG.
The figure is a plan view showing the inserted state of the tape drive mechanism section. DESCRIPTION OF SYMBOLS 1... Device body, 2... Storage part, 4... Tape drive mechanism part, 9... Movable slide plate, 9a... Contact part, 9b... Notch part, 14... Detection lever, 1
4a...Locking part, 14b...Detection part, 16...Cassette, 19...Control lever, 19a, 19b...
... end, 22 ... contact pin, 24 ... control pin.

Claims (1)

[Scope of utility model registration request] A device main body having a storage section, a tape drive mechanism section that is provided to be able to move in and out of the storage section and has a reel shaft, a capstan, etc. protruding from the cassette mounting section on the upper surface thereof, and a tape drive mechanism section that is not attached to the tape drive mechanism section. A movable member that is provided to move between two positions, a performance position and a performance position, and that brings the magnetic head into contact with the tape and presses the pinch roller against the capstan in the performance position, and a tape drive mechanism that is inserted into the storage section. a control member that moves the movable member from the non-playing position to the playing position when the tape is played, and moves the movable member from the playing position to the non-playing position when the tape drive mechanism is pulled out; and a cassette mounting portion of the tape drive mechanism. A tape recorder comprising a detection member for detecting whether or not a cassette is attached to the tape recorder, and for preventing the movable member from moving to a performance position when a cassette is not attached.