JPS5823344A - Cassette type tape recorder - Google Patents

Abstract

PURPOSE:To load a cassette with a small force, by excluding a reel driving member out of a cassette loading path and latching the reel driving member automatically to the reel of the cassette when the loading of cassette is finished. CONSTITUTION:A push button 17 is depressed, a shift lever 12 is turned clockwise arond a shaft 13 and a lock pin 18 is latched with a hook 21a f a latch lever 21. A reel driving member 10 is located in a recess 6 at the bottom of a loadig section 1 interlocking with the shift lever 12 and a shift 8. When a cassette is loaded from an insertion inlet 2 and progressed to the depth, an insertion detection lever 23 is pressed, the latch lever 21 is turned counteclockwise via a connection rod 29, the lock pin 18 is detached, the shift lever 12 is also turned counterclockwise, the member 10 is lifted up and latched with the reel in the cassette. When taking out the cassette, a push button 17 is depressed. Thus, the cassette can be loaded with a little force.

Description

DETAILED DESCRIPTION OF THE INVENTION When a tape cassette is horizontally moved and stored in a cassette storage section, a reel driving member is moved to the stored cassette in a direction perpendicular to one circumference of the cassette and is secured to the tape cassette. Regarding a cassette type tape recorder configured to run the tape, its purpose is to reduce the force of inserting the tape cassette into the cassette storage section, and to improve the performance of the device by reducing the amount of movement of the reel drive member. The objective is to achieve miniaturization by simplifying the configuration.

The conventional loincloth cassette tape recorder is the so-called slide-in type tape recorder, which is often seen in car tape decks.

This cheap recorder has a capstan, pinch row 2.
The mechanism board on which various tape drive parts such as the reel stand are assembled can be moved in parallel, and the power supply is applied even when the board is held in a position tilted away from the cassette storage section. .

However, this type of tape recorder has the following drawbacks. In other words, when storing the tape cassette in the cassette storage part, the insertion force causes the board to move upward, so a large force is required to insert the tape cassette. There are some methods that use tape cassettes to reduce the mediating power of tape cassettes, but in this case, the configuration becomes quite complex, difficult to assemble, and expensive, and the entire board must be moved up and down. For example, a large space is required, which limits miniaturization of the device.

Therefore, the present invention aims to eliminate such drawbacks, and one embodiment thereof will be described below with reference to Figure F.

The tape recorder of this embodiment uses a tape cassette in which a pinch roller is previously housed in a case so as to be rotatable. In the figure, reference numeral 1 denotes a box-shaped cassette storage section, the negative side of which is a cassette insertion slot 2. The cassette storage section 1 is fixed to the chassis 6 via struts 3.4. A recess 6 is provided on the bottom surface of the force center storage portion 1, and a shaft 8 is supported by a bearing portion 7 provided at the bottom of the recess 6 so as to be rotatable and vertically movable.

A reel drive member 10 that engages with and rotates a reel hub (not shown) built into the tape cassette 9 is fixedly mounted on the upper end of the shaft 8. 10 & is a reel hub drive pawl. Although not shown, the lower end of the shaft 8 is equipped with a pulley that rotates in response to rotational force from a motor, etc., and a disc that transmits the rotational force of this pulley to the shaft 8 via a friction plate made of felt or the like. The reel drive member 10 is (b) rotationally driven by the force of a motor or the like. Further, a shift lever 12 is rotatably attached to a bearing plate 11 provided on the lower surface of the cassette storage section 1 by a shaft 13, and the approximately central portion of this lever 12 is connected to a shaft 8 attached to a shaft 8. It is inserted and engaged between the pair of nutsoba 14 and 15. This shift lever
12 is also urged upward by a tension spring 16 suspended between it and the cassette storage 851. A push button 17 is solidly mounted on the free end of the shift lever 12, and a lock pin 18 is provided near the push button 17 in the direction of the shift lever 12. In order to lock this lock pin 18, a locking lever 21 (b) is movably attached to a projecting piece 19 of the chassis 5 with a shaft 20''r. A hole 22 is provided at the bottom of the inner part of the cassette storage section 1, and one end of the cassette insertion detection lever 23 is inserted into the cassette storage fjvS1 through this hole 22.This cassette insertion The detection lever 23 is rotatably attached to a projecting piece 24 of the chassis 6 with a shaft 26, and is rotated clockwise by a tension spring 26 suspended between it and a bearing plate 11 provided on the lower surface of the cassette storage section 1. The other end of the cassette insertion detection lever 23 and the other end of the retaining lever 21 are rotatably connected to a connecting rod 29 by a shaft 27,28.

The operation of the above Re embodiment will now be described.

First, when no tape cassette is inserted into the cassette storage section 1, the lock pin 18 of the shift lever 12 is locked by the claw 21SL of the locking lever 21 as shown in FIG. It is stored in a recess 6 provided on the bottom surface of the storage section 1.

In this state, when the cassette 9 is horizontally moved and inserted into the cassette insertion slot 2 as shown in FIG. Move clockwise. This lever 23+7) turns tEl]Kj rotates the locking lever 21 counterclockwise, and the shift lever by the lever 21 is rotated.
12 is released. By releasing this locked state, the shift lever 12 is rotated counterclockwise by the force of the tension spring 16, and the reel drive member 1o is lifted and brought onto the cassette insertion path. At this time, since the reel hub of the cassette 9 is positioned above the reel driving member 1o, the raised reel driving member 1o is engaged with the upper Nt reel hub. Although not shown, the capstan and magnetic head are located at the back of the cassette storage compartment 1, so when the tape cassette 9 is inserted into the normal position, the pinch roller built into the cassette will automatically move to the capstan. Since the upper dCC air head is pressed against the magnetic tape,
A motor (not shown) starts rotating, and the capstan and
By rotating the reel driving member 10, the magnetic tape is reproduced or recorded.

Next, tape force is 9ff: When ejecting, press 1
Just press 17. By pressing this push button 17, the shift lever 12 is moved clockwise (B), and the reel drive member 10 is depressed and detached from the reel hub of the cassette 9, so that the cassette 9 is ejected outward by the force of the spring 26. Then, the shift lever 12 is again held in the position shown in FIG. 1 by the locking lever 21.

In the above embodiment, one reel driving member 1o is provided, but two reel driving members 1o may be used depending on the structure of the cassette. Further, although the push button 17 is a cassette ejection button, the cassette ejection button may be provided separately and this button may be linked to the shift lever 12. In either case, the reel drive shaft 10 and the reel hub of the cassette are connected to each other. Since the cassette is ejected after the cassette is removed, the cassette can be ejected reliably. Alternatively, one of the stoppers 14 and 16 may be removed and the push-up blade of the reel drive member 1o may be served by another spring. Furthermore, the apparatus of the above embodiment can be similarly applied to a system in which the tape is run only by the rotational force of the reel without using a capstan.

As explained above, in the cassette type tape recorder of the present invention, when the cassette is inserted into the cassette storage section with the reel drive member removed from the cassette insertion path and held in position, the cassette is stored in the fixed position in the storage section. The position holding state of the upper HC reel drive member is automatically released, and the reel drive member is raised and engaged with the cassette, so that the insertion force of the cassette can cause the mechanism itself to Compared to conventional push-up devices, insertion of the cassette can be performed with relatively little force.

Furthermore, the only thing that moves can be the reel drive member, and it only needs to move between the position where it is engaged with the cassette and the position where it is not engaged, and the device can be made smaller because its movement speed can be reduced. The effect of being able to go south.

In addition, in conjunction with the operation of discharging the force cent from the storage section, the reel drive member is held in position by 1'l'll.
By making it X, the cassette ejection mechanism can be simplified.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a state in which a cassette type tape recorder according to an embodiment of the present invention is being inserted;
The figure is a side view showing the cassette in a fully housed state. DESCRIPTION OF SYMBOLS 1... Cassette storage part, 5... Chassis, 8... Shaft, 9... Tape cassette, 10... Reel drive member, 12...
...Shift lever 116...Tension spring, 1
7...Push button 1.18...Lotsukubi/,
21... Locking lever, 23... Cassette insertion detection lever, 29... Connecting rod. Name of agent: Patent attorney Toshio Nakaya and 1 other person 1st
! I

Claims (2)

[Claims] (1) A reel driving member biased to be positioned on the tape cassette insertion path, a holding means for removing the reel driving member from the insertion path and holding the tape cassette in position, and a reel driving member biased to position the tape cassette in a fixed position in the cassette storage section. The reel drive member is provided with a detection means for detecting that the cassette is housed in the position, and the detection means and the holding means are interlocked so that when the detection means detects that the cassette is housed, the position holding state of the reel driving member by the holding means is released. A cassette tape recorder. (2) The holding means is configured to be activated by movement when the cassette is ejected from the storage section.
The cassette type tape recorder described in Section 1.