JPH0555335U - Magnetic recording / reproducing device - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a magnetic recording / reproducing apparatus suitable for being carried, and an object thereof is to provide a magnetic recording / reproducing apparatus capable of preventing erroneous mounting of a tape cassette. [Structure] Left and right lid openers 13, 12 reels 9,
Left and right lid openers 1 of the ends on the 10 side and reels 9 and 10
The left and right lid openers 13, 1 are arranged such that the distance from the end on the side of 3, 12 is smaller than the distance between the front surface of the lid 7b of the tape cassette 7 and the end on the side of the lead 7b of the tape hole 7a.
2 are arranged and configured.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a magnetic recording / reproducing apparatus, and more particularly to a magnetic recording / reproducing apparatus suitable for carrying.

[0002]

[Prior Art]

 A so-called DAT (Digital Audio Tape Recorder) is known as a magnetic recording / reproducing apparatus. This DAT has a structure in which a magnetic tape is pulled out from a small tape cassette by a tape loading mechanism and wound around a predetermined range (for example, 135 °) of a rotary cylinder to perform digital recording / reproduction.

In addition, all of the conventional DATs are stationary types, but in recent years, the DATs have been made compact and thin enough to be portable.

FIG. 2 is an overall view of a conventional magnetic recording / reproducing apparatus 1 (hereinafter, simply referred to as an apparatus). A device 1 shown in the figure is a rotary type digital audio tape coder, and a cassette loading / unloading mechanism 3, a reel driving mechanism 4, a rotating cylinder 5, a tape loading mechanism 6 and the like are arranged on a chassis 2. All of these mechanisms and devices are configured so that they can be assembled to the chassis 2 from above the chassis 2, thus simplifying the assembly process.

The cassette loading / unloading mechanism 3 is for loading the tape cassette 7 (shown in FIG. 3) at a predetermined recording / reproducing processing position in the apparatus 1, and a so-called kangaroo pocket type cassette loading / unloading mechanism is used. ing. The tape cassette 7 is inserted into the cassette holder 8 in the eject state shown in FIG. 3, and when the tape cassette 7 is inserted into the cassette holder 8 and is rotated in the direction of arrow A in the figure, the tape cassette 7 is inserted into the apparatus 1. It is mounted at a predetermined recording / playback processing position.

The tape loading mechanism 6 is a mechanism for pulling out a magnetic tape from the tape cassette 7 and winding it around the rotating cylinder 5 described above at a predetermined angle (135 ° in this embodiment). The tape loading mechanism 6 employs so-called M loading, and a pair of loading bases 17 and 18 are moved along the guide grooves 19 and 20 by a link mechanism (not shown). It is configured to unload.

The loading bases 17 and 18 have a structure in which the loading posts 15 and 16 and the inclined poles 18 and 19 are provided upright on the upper portions thereof. These posts 15 and 16 and poles 21 and 22 have a function of pulling out the magnetic tape from the tape cassette as the loading bases 17 and 18 move, and forming a predetermined tape path by the magnetic tape when the loading is completed. Play. FIG. 2 shows the apparatus 1 in a standby state before loading.

FIG. 4 shows a process of mounting the tape cassette 7 on the device 1.

FIG. 1A shows a state in which the tape cassette 7 is inserted in the cassette holder 8. The cassette slider 7C covering the lower portion of the tape cassette 7 slides when the tape cassette 7 is inserted into the cassette holder 8, and the lower surface on the lid 7b side is opened. As a result, the lid 7b covering the front surface of the cassette tape 7 can be rotated.

(B) shows a state in which the cassette holder 8 is pressed and rotated in the direction of arrow A from the state of (A). The lid 7b pivots because its ends contact the left lid opener 13 and the right lid opener (see FIG. 2).

(C) shows a state in which the cassette holder 8 is completely pressed and the tape cassette 7 is in the regular mounting position. The lid 7b rotates about 90 degrees to open the front surface of the tape cassette, and the reel shafts 9 and 10 are fitted into the reel holes 7a of the tape cassette 7, so that the tape can be driven.

[0012]

[Problems to be solved by the device]

 However, if the tape cassette 7 is not completely inserted into the cassette holder 8 and the cassette holder 8 is pressed and rotated, the lid 7a of the tape cassette 7 may be mounted without being opened. To do.

FIG. 5 shows a process of mounting the lid 7a without opening it. As shown in (A), the tape cassette 7 is not completely inserted into the cassette holder 8, and the front end of the lid 7b is not caught by either the left lid opener 13 or the right lid opener 12 (see FIG. 2). In this state, when the cassette holder 8 is forcibly rotated in the direction of arrow A, as shown in (B), the tape cassette 7 is such that the front surface of the lid 7b is the end portion of the left and right cassette openers 13, 12 on the reel shaft 9, 10 side. Move while being pressed by.

When the cassette holder 8 is further pressed and rotated in the direction of arrow A, the lid 7 a of the tape cassette 7 is separated from the end portions of the left and right cassette openers 13 and 12 and the post protector 14 as shown in (C). While entering the space, the reel hole 7a is fitted into the reel shafts 9 and 10, and the cassette holder is rotated to the position where the cassette is properly mounted. Then, the cassette detection sensor (not shown) operates to activate the tape loading mechanism 6 and the loading posts 15 and 16 start moving. However, since the lid 7b is still closed, it hits the inner surface of the lid 7b. Therefore, the device 1 cannot operate normally.

In such a state, it is very difficult to pull out the tape cassette 8 again, and sometimes the tape cassette 7 and the tape are damaged.

As described above, the conventional apparatus 1 has not taken any measures for preventing the erroneous mounting of the cassette.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a magnetic recording / reproducing apparatus capable of preventing erroneous mounting of a tape cassette.

[0018]

[Means for Solving the Problems]

 The present invention inserts the tape cassette into the cassette holder, rotates the cassette holder to guide the tape set to the mounting position, inserts the reel hole of the tape cassette into the reel shaft for tape drive, and the lid of the tape cassette. A magnetic recording / reproducing apparatus that opens and closes the front surface of the tape cassette by a lid opener that rotates the lid by moving the loading mechanism, pulls out the magnetic tape from the tape cassette, and attaches it to a rotating cylinder to perform recording / reproduction processing. In the above, the distance between the end of the lid opener on the reel shaft side and the end of the reel shaft on the lid opener side is defined by the distance between the front surface of the lid of the tape cassette and the end of the reel hole on the lid side. The distance is smaller than the distance.

[0019]

[Action]

 In the present invention, the distance between the front surface of the lid and the end of the reel hole on the lid side is smaller than the distance between the end of the lid opener on the reel shaft side and the end of the reel shaft on the lid opener side. When the tape cassette is inserted incorrectly, the end of the reel hole contacts the end of the reel shaft and the tape cassette does not move any further.

Therefore, the tape cassette does not move to the mounting position and the cassette holder does not close completely.

[0021]

【Example】

 The embodiment of the present invention described below has the same structure as the conventional device 1 shown in FIG.

FIG. 1 is a view showing a main part of an embodiment of the present invention and an erroneous mounting prevention mechanism for a tape cassette.

First, the difference between the conventional device 1 and the present embodiment will be described with reference to FIG.

In the conventional apparatus 1, the distance M when the end portions of the reel shafts 9 and 10 and the end portions of the lid openers 12 and 13 are viewed from the side surface is the distance from the end portion of the reel hole 9 of the tape cassette 7 to the lid 7a. The size was equal to or smaller than the distance L to the front surface. Therefore, as shown in FIG. 5, the tape cassette 7 is erroneously inserted.

However, in this embodiment, the left and right lid openers 13 and 12 are arranged so as to be shifted toward the reel shafts 9 and 10 so that the distance M becomes slightly smaller than the distance L. Along with this, the post protector 14 is also shifted and arranged on the reels 9 and 10 side.

Next, the erroneous mounting prevention mechanism will be described with reference to FIG. 5A shows a state in which the tape cassette 7 is not completely inserted in the cassette holder 8 as in FIG. 5A. In this state, it is assumed that the cassette holder 8 is pressed and rotated in the arrow A direction.

Then, as shown in (B), the front surface of the lid 7 a of the tape cassette 7 moves while contacting the ends of the left and right lid openers 13, 12. The process up to this point is the same as the erroneous mounting process of the tape cassette by the conventional device 1 shown in FIG.

However, as shown in (C), the end of the reel hole 7a of the tape cassette 7 abuts on the ends of the reel shafts 9 and 10, so that the cassette tape 7 cannot move any further.

Therefore, no matter how much the cassette holder 8 is pressed, the operator does not close the tape cassette until it reaches the proper tape cassette mounting position, and thus the operator notices erroneous insertion and re-inserts the tape cassette.

Even if the cassette holder 8 is fixed in the state of FIG. 1C, the tape loading mechanism 6 does not operate because the tape cassette 7 has not moved to the regular mounting position.

Since the end portions of the post protector 14 are also moved to the reel shafts 9 and 10 by the amount of the left and right lids being displaced, the tape in the tape cassette 7 in the normal mounted state and the post protector 14 are moved. The distance to and will increase. As a result, it is possible to reliably prevent the occurrence of the problem that the tape is caught by the post protector 14 even though the tape cassette 2 is mounted in the normal state.

[0032]

[Effect of the device]

 As described above, according to the present invention, the position of the end portion of the lid opener is slightly shifted to the reel shaft side, so that it is not necessary to change the conventional component configuration and it is not necessary to increase the number of components, and thus it is simple. With the structure, it is possible to obtain a mechanism capable of preventing erroneous tape mounting without increasing the manufacturing cost and without increasing the size of the device.

[Brief description of drawings]

FIG. 1 is a diagram illustrating an essential part of an embodiment of the present invention.

FIG. 2 is an enlarged plan view of a conventional magnetic recording / reproducing apparatus.

3 is a side view of the device of FIG.

FIG. 4 is a diagram illustrating a mounting process of a tape cassette.

FIG. 5 is a diagram illustrating erroneous mounting of a tape cassette.

[Explanation of symbols]

 1 magnetic recording / reproducing apparatus 2 chassis 3 cassette loading / unloading mechanism 6 tape loading mechanism 7 tape cassette 7a reel hole 7b lid 7c cassette slider 8 cassette holder 8a holder arm 9 reel shaft 10 reel shaft 11 pin 12 right lid opener 13 left lid opener 14 Post protector 15 Rodening post 16 Loading post

Claims (1)

[Scope of utility model registration request] 1. A tape cassette is inserted into a cassette holder, the cassette holder is rotated to guide the tape set to a mounting position, and a reel hole of the tape cassette is inserted into a reel shaft for driving a tape. The front surface of the tape cassette is opened by a lid opener that abuts on the lid of the tape cassette and rotates the lid, the loading mechanism is moved, and the magnetic tape is pulled out from the tape cassette and attached to a rotating cylinder for recording and reproduction. In a magnetic recording / reproducing apparatus that performs processing, the distance between the reel shaft side end portion of the lid opener and the lid opener side end portion of the reel shaft as viewed from the side, the front surface of the lid of the tape cassette and the reel hole A magnetic recording / reproducing device configured to be smaller than a distance from the end portion on the lid side.