JPH0445145Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a magnetic tape reel loading mechanism for a magnetic tape drive device used as an external storage device for a computer or the like.

(Prior Art) Conventionally, magnetic tape drives used as external storage devices for computers and the like have been known to use reel-to-reel type magnetic tape as a recording medium. A so-called autoloading mechanism is employed in which the magnetic tape wound on the tape reel on the supply side is guided through a predetermined path by an air flow onto the tape reel on the take-up side and wound.

That is, in this type of magnetic tape drive device, as shown in FIG. 3, the tape reel 4 on the supply side introduced into the device through the opening 2 of the housing 1 is a reel stand that is rotationally driven by a motor (not shown). 3, the magnetic tape T is moved through a predetermined tape path 7 by airflow as shown by the arrows in the figure sent out from the air vents 5 and 6, and then transferred to a tape reel 8 on the take-up side.
The airflow is guided to the tape reel 8 on the take-up side.
It is wound around a tape reel by passing through a slit (not shown) to the outside. The magnetic tape T derived by such tape loading
forms a tape path that connects the guide rollers 9, 10, magnetic head 11, and capstan 12. Note that 13 is an opening/closing lid that opens and closes the opening 2.

(Problems to be Solved by the Invention) In the magnetic tape drive device having the above configuration, in order to facilitate the loading operation of the tape reel 4 on the supply side, the reel fitting portion 3a of the reel stand 3 is designed to facilitate loading of the tape reel 4 on the supply side. A method is often adopted in which this surface is formed as an inclined surface and this surface is formed as low as possible to the reel mounting surface 3b side. Therefore, in the initial stage of loading the tape reel 4, if the tape reel 4 is moved in parallel as shown by the solid line, the lower flange 4b will come into contact with the upright surface _3a1 of the reel fitting part 3a, so there will be two points. The tape reel 4 had to be inserted diagonally so that the flange 4b was along the inclined surface as shown by the chain line, which caused various problems such as poor operability and damage to the reel flange.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned conventional problems, and includes a lid body that opens and closes the opening of the casing into which the tape reel is introduced, and a lid body on which the tape reel is placed. a reel stand rotationally driven by a motor, and a guide surface disposed between the opening and the reel stand to guide the inserted tape reel;
It consists of a rotatable guide member whose one end is pivotally supported by a fixed part, and a connecting means that connects this guide member and the lid body, and when the tape reel is introduced, the moving force of the tape reel causes the The present invention provides a magnetic tape reel loading mechanism characterized in that the tape reel is guided onto the reel stand by rotationally displacing a guide member.

(Embodiment) Since the basic configuration of the present invention is substantially the same as the magnetic tape drive device shown in FIG. 3 above, only the main parts will be described below.

1A to 1D are operation explanatory diagrams showing the main parts of the magnetic tape reel loading mechanism according to the present invention, and FIG.
FIG. 2 is a detailed diagram illustrating the operation in FIG. A;

As shown in FIG. 1A, the main parts of the magnetic tape loading mechanism of the present invention are as follows. It has a large cylindrical upright surface and a slightly inclined surface at the top so that it can be fitted securely.
There is no need to form a large inclined surface for insertion.

Between the opening 2 of the housing 1 and the reel stand 31, there is disposed a triangular reel guide (guiding member) 17 like a top, which constitutes a part of the main part of the present invention.

This reel guide 17 is rotatably supported by a shaft 16 provided on a stepped portion 15a located below the reel of the fixed base 15, and the direction of rotation is approximately relative to the operating surface of the tape reel 4 inserted. It exists as perpendicular vertical planes. The reel guide 17 has an upright surface 17a that stands up above the shaft 16, and a tape reel 4 that intersects with this upright surface 17a at an acute angle.
It has a guide surface 17b that comes into contact with the bottom surface of the guide surface 17b, and a roller 18 that rotates at an intersection 17c that is biased toward the opening 2 side of the upright surface 17a. Therefore,
When a downward pressing force is applied from above the roller 18, the reel guide 17 rotates counterclockwise about the shaft 16. And this roller 18
The height position of the upper end faces the upper slope of the reel stand 31.

On the other hand, an opening/closing lid (lid body) 19 that opens and closes the opening 2
is pivotally supported by a shaft 20 of the casing, and a torsion spring 22 is fitted into a pin 21 that stands up from the shaft.

One end of the torsion spring 22 is locked to the opening/closing lid 19,
The other end locks the reel guide 17, and when the opening/closing lid 19 is opened, a clockwise rotating force is applied to the reel guide 17.
The upright surface 17a abuts against the end surface of the fixed base 15 to restrict its rotational position. Therefore, when the opening/closing lid 19 is opened, the roller 18 is located at the upper end of the reel guide 17, and the guide surface 17b faces the tape reel moving surface (lower surface) at a predetermined angle (acute angle). I will do it.

Here, the loading operation of the tape reel 4 will be explained in conjunction with FIG. 2.

First, as shown in FIG.
It has sloped surfaces facing each other. Here, when the tape reel 4 on the supply side on which the magnetic tape is wound is introduced into the apparatus approximately horizontally from the opening 2 in the direction indicated by the arrow It contacts the guide surface 17b at a predetermined angle. Due to this contact between the tape reel 4 and the reel guide 17, as shown in FIG. 2A, the force F in the moving direction of the tape reel 4 and the load W
The force of is applied. Then, as the tape reel 4 continues to slide on the guide surface 17b, the reel guide 17 rotates counterclockwise about the shaft 16 to a point _P0 that vertically connects the guide surface 17b and the center of the shaft 16. This state is shown in FIG. 2B.

Furthermore, by moving the tape reel 4 in the X direction, the tape reel 4 slides up the guide surface 17b regardless of the weight of the tape reel, causing the reel guide 17 to rotate clockwise and return to its original position.
reaches the roller 18 as shown in FIG. 2C.

When the tape reel 4 rides on the roller 18 as shown by the two-dot chain line due to the moving force of the tape reel 4, the reel guide 17 is moved counterclockwise against the biasing force of the torsion spring 22 due to the weight of the reel itself. direction, allowing accurate movement of the tape reel 4 to the reel stand 31 and fitting therewith. This state is also shown in FIGS. 1B to 1C. Therefore, the process by which the tape reel 4 reaches the reel stand 4 becomes very smooth.

Thereafter, as shown in FIG. 1D, when the opening/closing lid 19 is rotated in the closing direction (clockwise) about the shaft 20, the biasing force of the torsion spring 22 attached to the opening/closing lid 19 is applied to the lid. The reel guide 17, whose one end is locked to the torsion spring 22, separates from the tape reel 4 placed thereon, and one side of the reel guide 17 locks with the fixed base 15 due to the displacement. The rotating position is regulated by contacting the stepped portion 15a.

As shown in FIG. 3, the magnetic tape T is moved through a predetermined tape path 7 by the air flow as shown by the arrows in the figure sent out from the ventilation ports 5 and 6 of the device, and is then wound up. The tape is guided to and wound around the side tape reel 8 to form a predetermined tape path, and signals are recorded or reproduced by the magnetic head 11.

As described above, when the opening 2 is opened, the reel guide 17 is displaced so as to reliably guide the tape reel 4 onto the reel stand 31 of the apparatus, and when the opening/closing lid 19 is closed, the reel guide 17 is Since it is retracted from the tape reel 4 in conjunction with the operation, the reliability of the apparatus is improved.

(Effects of the invention) As detailed above, the magnetic tape reel loading mechanism according to the present invention allows the tape reel on the winding side to be loaded into the device by means of a reel guide member that interlocks with the opening/closing lid of the opening into which the tape reel is introduced. It has extremely practical advantages such as smooth introduction.

[Brief explanation of the drawing]

FIG. 1 is an operational explanatory diagram showing the main parts of the magnetic tape reel loading mechanism according to the present invention, FIG. 2 is a detailed explanatory diagram of FIG. 1, and FIG. FIG. 4 is a partial side view showing a state in which a conventional tape reel is installed. 1... Housing, 2... Opening, 3, 31... Reel stand, 4... Tape reel, 15... Fixed base,
17... Reel guide (guiding member), 19... Opening/closing lid, 22... Torsion spring.

Claims (1)

[Scope of utility model registration request] A lid body for opening and closing an opening of a housing into which a tape reel is introduced, a reel stand on which the tape reel is placed and rotated by a motor, and a lid body disposed between the opening and the reel stand. , comprising a rotatable guide member having a guide surface for guiding the inserted tape reel and having one end pivotally supported by a fixed part, and a connecting means for connecting the guide member and the lid body, A magnetic tape reel loading mechanism characterized in that when the tape reel is introduced, the tape reel is guided onto the reel stand by rotationally displacing the guide member by the moving force of the tape reel.