JPS5862874A - Cassette adaptor - Google Patents

Abstract

PURPOSE:To prevent dust from going into a small-sized cassette, by loading the small-sized cassette into an adaptor case used for a large-sized magnetic tape device, and constituting so that a cassette cover can be opened and closed in a state of the tape is being drawn out. CONSTITUTION:Into a case 1 of a cassette adaptor which is applicable to a large-sized magnetic tape device, a small-sized tape cassette 2 for a small-sized magnetic tape device is loaded. When a magnetic tape 3 is drawn out and expand-opened by a pair of magnetic tape drawing-out members 4, 5, if a clearance between a front part 2a of the cassette 2 and the tape 3 is denoted as L and projecting length of the tip part of a cover body 8 and the front part 2a is denoted as l, it is constituted so as to be L>l. Therefore, in a state that the tape 3 is expand-opened, the cover body 8 can be opened and closed, the same magnetic tape can be used for both the large-sized and small-sized devices, and also it is possible to prevent dust from going into the small-sized cassette.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for recording or reproducing signals using magnetic tape, such as an audio tape recorder or a video tape recorder (hereinafter collectively referred to as a magnetic tape apparatus). Concerning a valid cassette adapter to use.

Depending on the application, magnetic tape devices include large magnetic tape devices that use large tape cassettes with a large amount of magnetic tape wound in order to perform long-time recording or playback;
There is a small magnetic tape device that uses a small tape cassette that is small and lightweight and has a relatively small amount of magnetic tape wound therein so as to be convenient for outdoor portable use.

In this case, it goes without saying that both of the above magnetic tape devices are used.

The configurations such as the tape running path and the spacing between the reel stands (reel shafts) are different, and the tape cassettes used for both are different in not only the reel spacing but also the external dimensions, and the large tape cassette and the small tape cassette are different from each other. However, even if the recording formats of magnetic tapes are the same, it is difficult to provide mutual compatibility.

In view of these points, the present invention provides that even if the tape cassettes used for the nine magnetic tapes have different dimensions and shapes when the recording formats of the magnetic tapes are the same, the same magnetic tape can be used in any of the above-mentioned magnetic tape devices. We would like to provide a cassette adapter that can be easily applied to various applications. It is something.

□ Hereinafter, the present invention will be explained based on the illustrated embodiments.

FIG. 1 is a plan view showing the main part configuration of an embodiment of the present invention, in which a small magnetic tape device is placed at a predetermined location in a case 1 having a size and shape applicable to a large magnetic tape device. A state in which an applicable small tape cassette 2 is loaded is shown.

The magnetic tape 3 in the small tape cassette 2 is drawn outward through the front opening 6 of the tape cassette 2 in a loop shape by a pair of magnetic tape pull-out members 4 and 6, and is expanded into the front opening 17 of the case 1. The tape is brought to a nearby predetermined tape running path position.

A notch 7 is formed in the front opening 17 of the case 1.
When this cassette adapter is attached to a large magnetic tape device (for example, a cassette video tape recorder), a magnetic tape pull-out member (not shown) is attached to the back of the magnetic tape 3.
It is possible to insert it.

The small tape cassette 2 has a lid 8 for opening and closing the front opening 6, and a support shaft 9,1 provided on both side walls of the case 1.
It is pivotably supported around o.

Here, the present invention includes 1. As shown in FIG. 1, when the magnetic tape 3 of the small tape cassette 2 is brought to the predetermined tape running path position by the pair of magnetic tape pull-out members 4 and 5, the pair of magnetic tape Let L be the separation distance of the magnetic tape located between the drawer members 4 and 6 from the front part 2a of the small tape cassette 2,
Further, when the protruding length of the tip 8a of the lid 8 from the front surface 2a of the small tape cassette 2 in the open state is t, the lid 8 is adjusted so that the relationship L)7 is satisfied. The size and the moving position of the magnetic tape pull-out members 4 and 6 are set.

Note that the above relationship applies to the front section 2 of the small tape cassette 2.
This is the case when considering a as a reference, but the same is true when considering a straight line connecting the support shafts 9 and 10 as a reference.

With this structure, as shown in Figures 1 and 2,
Even if the magnetic tape 3 is pulled out from the small tape cassette 2 and the lid 8 is closed, the lid 8 will still not close to the front opening 6 of the small tape cassette 2 or the front opening 1 of the case 1.
The magnetic tape does not come into contact with the magnetic tape located on the tape running path approximately parallel to 7.

In addition, a small tape cassette 2 is attached to the bottom of the case 1.
Notches 1 are formed on both side walls of the small tape cassette 2 so that the front and rear positions or the front and rear and left and right positions of the tape cassette 2 do not shift.
A positioning member 15.16 is provided which can be fitted into 3.14. Of course, as shown in FIG. 3, the small cassette 2 has a sulin that allows the magnetic tape 3 to be pulled out and stored without any trouble even when the lid 8 is closed.11.1
2 are provided.

As is clear from the above description, the cassette adapter of the present invention is capable of keeping the lid of the small tape cassette closed at all times outside the plate when the magnetic tape is being pulled out and stored. This has a great effect on preventing the intrusion.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a main part showing an embodiment of the cassette adapter of the present invention, FIG. 2 is a partially cutaway perspective view of the main part of the same embodiment,
FIG. 3 is a perspective view of an example of a small tape cassette applicable to the present invention. 1... Case, 2... Small tape cassette, 3... Magnetic tape, 4, 5...
Magnetic stage drawer member, 6...Front opening, 8
・・・・・・Lid, 910・・Spindle, 11.12・
...Slit, 15.16 ...Positioning member. Name of agent: Patent attorney Toshio Nakao and 1 other person [1
figure

Claims (1)

[Claims] A front opening with a built-in magnetic tape and a front opening that allows the magnetic tape to be drawn out in a loop shape;
a cassette storage case in which a tape cassette having a rotatable lid whose front opening can be turned into a closed state and an open state can be removably loaded into a predetermined location inside; With the tape cassette loaded in a predetermined location of the cassette storage case with the lid closed, the magnetic tape in the tape cassette is brought to a predetermined tape running path position near the front surface of the cassette storage case through the front opening. a pair of magnetic tape pull-out members that can be pulled out and expanded so that the tape cassette is brought to the predetermined tape running path position by the pair of magnetic tape pull-out members; , the separation distance from the front surface of the tape cassette of the magnetic tape located between the pair of magnetic tape pull-out members, and the protrusion length of the tip of the lid body from the front surface of the tape cassette when the lid is open. A cassette adapter characterized in that the cassette adapter is configured such that when the length is t, the length is L)4.