JPS6050685A - Tape counter of cassette tape deck - Google Patents

Abstract

PURPOSE:To set a display part to a door in a simple constitution by setting a mechanical counter with its display direction turned to the door of a cassette half attachment part and therefore having an engagement between the counter and the tip of a reel shaft when the door is opened. CONSTITUTION:A door 13 is opened to put a cassette half into a pocket 14 and then closed, and a press contact is secured between friction members 32 and 33 by the energizing force of a spring 23. A reel shaft 17 is revolved by the revolutions of a motor 19 and the drive of a tape is started. At the same time, the revolutions of the shaft 17 are transmitted to a worm 27 via the members 32, 33. Thus the worm 27 is revolved. The revolutions of the worm 27 are transmitted to a counter drum 29a or 29c via a wormwheel 28. The display value of the counter drum can be read from outside through a door panel 13a. Thus it is possible to provide the display part of a tape counter to the door of the cassette half attachment part in a simple constitution.

Description

[Detailed description of the invention] The present invention relates to a tape counter device for a tape deck.

The tape deck is provided with a tape counter device that measures the number of rotations of the reel shaft so that the recording position on the tape can be determined.

The conventional tape counter device has a mechanical device aspect using a mechanical counter 1 as shown in Fig. 1.
The mechanical counter 1 is provided with a counter pulley 4 for transmitting the rotation of the reel shafts 1 and 2 on the winding side to the belt 3, and the rotation of the counter pulley 4 is The speed is reduced by the wheat 17 and transmitted to the cylindrical member 6 whose surface is marked with numbers, so that the cylindrical member 6 rotates in conjunction with the reel shaft.

In the other tape counter device mentioned above, as shown in FIG.
There is also an electronic 't7 device d9 which drives the electric numeric display 41 of the C drive circuit 101fi ', '; in response to the output signal of the divisor (counter≦).

Since the conventional mechanical 7-counter installation Fl has an error of Δ3 (rotation is transmitted by bells i to 3), there are restrictions on the mechanical counter installation position, and it is not possible to install the mechanical counter in a position other than the door of the carre 1 to half installation part. There is a problem in that it is inconvenient for small tape recorders that cannot be provided with a mechanical counter. Further, in the electronic tape counter device, a numeric display 41 can be provided on the door 43 of the cassette half loading section 42, as shown in FIG.

However, there are problems in that the mechanism of the rotation detector 8, the circuit configuration of the counter 9 and the drive circuit 10 are complicated, and the number of parts is large, resulting in low reliability and high cost.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a tape counter device which has a simple structure, high reliability, and low cost, and furthermore, a display portion can be installed in the door of a half device.

In the tape counter device of the present invention, the door provided on the cassette half mounting portion of tape deck 1 faces the main surface of the cassette half when the cullet half is mounted and opened, and the display direction is set on the door to the outside. It is characterized in that it includes a mechanical counter provided facing the reel shaft, and the mechanical counter is adapted to engage with the tip of the mechanical counter when the door is closed, and to move in conjunction with the reel shaft.

Hereinafter, embodiments of the present invention will be explained with reference to FIGS. 4 and 5.

In the tape deck equipped with a tape counter device according to an embodiment of the present invention shown in FIGS. 4 and 5, a door 13 for mounting a cassette half is provided on the front 1 to panel 12 surfaces of the case 11 ("). The door 13 is provided with a door panel 13a that allows the inside to be seen through, and an I
- Pockets 1 to 14 for holding the cassette half 10 along with the insertion guide of the cullet half when the cullet half is attached are formed integrally with the door 13 on the inside of the lure 1, and the door panel 13a and the "-" side of the cassette half are arranged so that they are facing each other. The door 13 and box l-14 are attached to the side plate 1 fixed to the main chassis 15 inside the case 11.
6, the cassette half is removed from the door 13 and the device 1 is inserted into the bin 16a.The door 13 is also locked when the door 13 is closed. There is a reel shifter 17 inside.
．． (18) is rotatably provided on the main chassis 15. Reel shafts 1 to 17 and motor 19 on the winding side
Pulleys 20 and 21 are respectively installed on the rotating cullet, and a belt 22 is installed between the pulleys 20 and 21, so that the rotation of the motor 19 is transmitted to the reel shaft 17 via the belt 22. It is designed so that A hub engaging portion 17a having a force [t] to half is formed at the distal end of the reel shaft 17, and the reel shaft 17 is biased toward the distal end by a spring 23. door 1
3 and the main chassis 15 including the hub engaging portion 17a constitutes a cassette half mounting portion.

On the other hand, in the tape counter device according to the present invention,
A mechanical counter 25 is mounted on the inside of the door panel 13a with its display direction facing outward (it is fixed to screws 26 etc.).
The A-me wheel 27 and the A-me wheel 28 that form the
- A plurality of counter drums 29a that rotate in conjunction with the rotation of the drum wheel 28 and have numbers from O to 9 printed on the outer peripheral wall surface.
It has 4t to 29C. The counter drums 29a to 29G are arranged in parallel, and when the counter drum 29a makes one revolution in conjunction with the A-mov wheel 28, the counter drum 291) makes one tenth revolution, and the counter drum 291) makes one tenth revolution.
9 rotates once, the counter drum 29C rotates one-tenth of the rotation. 1. The rotating shirts 1 to 30 of the A-mu 27 are located on the same axis as the rotation axis of the reels 71-17. , and also protrudes outside the case 31 of the mechanical counter 25.

1q gap part shrines 32 such as FU JRU 1- etc. are fixed to the tips of the rotary cylinders 1-30. Also reelshi 1-nod 17
The bmo 1 inspection shrine 33 is fixed to the tip of the door 'I 3
When the door is closed, the friction part 1J32.33 comes into pressure contact with the reel shaft 17 (rotation of the reel shaft 17 occurs through the friction part 1J32.33).
- The information is transmitted to the system 27.

In the tape counter device 1'i according to the present invention having such a configuration, the door 13 is closed and the cassette 1-half is inserted into the pockets 1 to 1/I, and the cassette 1-half is inserted into the pocket 14. After installation, when the door 13 is closed, the force of the spring 23 presses the contact points 32 and 33. For example, if the operation mode of the tape recorder 1- is referred to as the playback mode, the rotation of the motor 19 causes the rotation of the motor 17 to start running the tape, and at the same time, the rotation of the reel shaft 17 causes the rotation of the friction section 032,3
3 to the worm 27, which rotates. The rotation of the worm 27 is further transmitted from the worm wheel 2 (3) to the counter drums 29a to 29.C.
The counter drums 29a to 29C rotate in conjunction with the rotation of the reel shaft 17, and the reel shaft 1
7 rotation speed is displayed. The displayed values on the counter drums 29a to 29C can be read from the outside through the door panel 13a, and also increase or decrease depending on the rotational speed and rotational direction of the reel shaft 17 even in fast forward mode or rewind mode.

FIG. 6 shows another embodiment of the present invention, and in this figure, an engagement rod 34 extending in the axial direction is integrally formed at the tip of the reel shaft 17, and a Z-arm 27 is connected to the engagement rod 34. The end part has an engaging rod 34 that engages, and a 1-series engaging part 35 that is
or formed 1, = also 1 near 13 and pocket 1
4 is 4 rotations per side plate 1G ()gu','K <
The pin hole 16a of the sea urchin side plate 16 is made into an oval shape by a slight movement forward. The other (M) configuration of the tape counter device according to the invention is similar to the device of FIG.

In such a configuration, the door 13 is moved forward from the front panel 12 surface, and when the door 13 is closed, the door 713 rotates to close the front panel 1 to the front panel 12. 12, and moves linearly to close the door. When the door 13 moves linearly, the engaging rod 31 is inserted into the engaging portion 35, and the engaging rod 34 and the engaging portion 3 are inserted into the engaging portion 35.
5 is connected. When the door 13 is closed, the rotation of the reels 71 to 17 is caused by the engagement rod J (4 and the engagement part 3).
5 to the timer 27 to operate the mechanical counter 25.

As described above, in the tape counter %i of the present invention, the mechanical counter is installed on the half-mounted door with the display direction facing outside, and the reel shaft is adjusted when the door is closed. It is configured to engage with the tip and move in conjunction with the reel seat 71. Therefore, conventionally,
Compared to electronic tape counter devices that can be installed on the door of a cassette half-equipped product, the number of parts is greatly reduced and the structure is simple, reducing costs and improving reliability. It is also possible to achieve this goal. Further, since the tape counter device of the present invention can be installed on the door of the cullet half mounting section, it is most suitable as a tape count display for a small tape recorder where display space is limited.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing a conventional mechanical tape counter device, Fig. 2 is an external view showing a display of a conventional electronic tape counter device, and Fig. 3 is a block diagram showing a conventional electronic tape counter device. , FIG. 4 is an external view showing an embodiment of the present invention, FIG. 5 is a mechanical sectional view showing an embodiment of the present invention, and FIG.
The figure is a sectional view of a mechanism showing another embodiment of the present invention. Explanation of symbols of main parts 12...Front panel 13...Door 14...Blurry]・17
...Reel shaft 19 ...Motor 25 ...Mechanical counter 32.33 ...Friction member Applicant Pioneer Co., Ltd. 1 Agent Patent attorney Karate J Original ξ (1 other person) #/ Diagram bottom 2 (2) Hata 3 Concave L4 Figure 7 z5 diagram 4

Claims (1)

[Claims] There is a tape counter device C for a cassette tape deck, which is provided in a cassette half mounting section and has a door that faces the main surface of the ceramic half when the door is closed when the cassette half is mounted, and the door has a display direction facing outside. Set up (
1. A tape 7J counter device, comprising a mechanical counter which has been pulled up, the mechanical counter being adapted to engage the reel shirt 1 at its tip when the door is closed and to operate in conjunction with the reel shaft.