JPH0648570B2 - Cassette holder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application] The present invention is a cassette tape (hereinafter, simply referred to as a cassette) provided in a rotary head type digital audio tape recorder (hereinafter, abbreviated as R-DAT). ) Holder, especially when the cassette is manually inserted into the cassette loading window of the R-DAT, the slider of the cassette can be reliably opened, and the slider can be closed when the cassette is ejected (removed). Cassette holder.

[Conventional technology]

R-DAT, which records and reproduces a digitized audio signal using a rotary head, is being commercialized as a high-quality, long-time audio signal recording / reproducing apparatus.

The cassette used for R-DAT has a structure as shown in FIGS.

FIG. 5 is a top perspective view of the R-DAT cassette,
Reference numeral 1 is a cassette, 1'is a cassette body, 6 is a slider (moving lid), and 11 is a lid (rotating lid for protecting magnetic tape).

FIG. 6 is a rear perspective view of the R-DAT cassette,
6'is a groove portion, 7 is a slider lock, 8 and 9 are second and first holes of the slider, 12 is a magnetic tape, and the same reference numerals as those in FIG. 5 correspond to the same portions.

As shown in FIGS. 5 and 6, the cassette 1 has a slider 6 on one surface side thereof and a lid 11 at its front end. The slider 6 is biased in the direction of the lid 11 by a spring (not shown), and is opened in the direction of arrow b in FIG. 6 in the process of being inserted into the cassette holder provided in the R-DAT, and is attached to the recording / reproducing mechanism. . Also lid
11 is also rotated in the direction of the arrow a in FIGS. 5 and 6 to expose the magnetic tape 12 so that the magnetic head can be accessed.

A groove 6'is formed in the slider 6 and the groove 6'is formed.
The slider lock 7 formed on the cassette body 1'side.
A second hole 8 and a first hole 9 for engaging with
When the slider 6 is in the closed state, the slider lock 7 engages with the second hole 8 to prevent the slider 6 from opening, and R-
When the slider lock 7 is inserted into the cassette holder of the DAT and completely opened, the slider lock 7 is engaged with the first hole 9 to hold the opened state.

Conventionally, the operation of opening and closing the slider is performed by placing a ridge on the portion of the cassette holder that comes into contact with the slider lock of the cassette, for example, when inserting the cassette, as described in JP-A-61-170951. The ridge and the slider lock of the cassette come into contact with each other, and the ridge pushes the slider lock so that the slider can be opened.

[Problems to be solved by the invention]

In the above-mentioned prior art, when the cassette is moved in the ejecting direction (removing direction), the slider lock abuts against the ridge and bends, and the slider and the slide lock are ejected in a state where the slider and the slide lock are not reliably disengaged. However, there is a problem that the built-in magnetic tape and structural parts are not sufficiently protected because the slider is not closed.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cassette holder in which a slider can be opened and closed with reliability by moving the cassette relative to the cassette holder.

[Means for solving problems]

The above object is to provide a ridge on the cassette holder at a position corresponding to the slider lock of the cassette, and for the ridge of the portion that comes into contact with the slider lock of the cassette when the cassette is inserted into the cassette holder with the slider closed. This is achieved by providing a protrusion on top.

[Action]

When the cassette is inserted into the cassette holder, the projection of the cassette holder arranged at a position corresponding to the notch provided in the lid passes through the notch formed in the lid and comes into contact with the slider.

At this time, the protrusion provided on the protrusion of the cassette holder abuts on the slider lock to open the slider. When the cassette is moved further in the insertion direction relative to the cassette holder, the slider opens,
It is locked in place. In this state, the protrusion of the cassette holder does not come into contact with the slider lock, and the cassette moves relative to the cassette holder in the take-out direction, and the slider locking hole of the slider and the protrusion provided on the cassette holder. If the protrusions are arranged so that the protrusions and the slider lock contact each other when the protrusions contact each other, the protrusions on the protrusions and the slider lock holes contact each other. A force acts in the closing direction of the slider to move the cassette in the take-out direction with respect to the cassette holder, thereby closing the slider.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of a cassette holder according to the present invention, in which 1 is a cassette, 1'is a cassette body,
2 is a cassette holder, 3 is a protrusion, 4 is a ridge, 5 is a protrusion on the ridge, 6 is a slider, 6'is a groove, and 11 is a lid.

2, 3, and 4 are cross-sectional views of the essential parts for explaining the operation of the cassette holder of the present invention shown in FIG.
The figure shows the state where the cassette is inserted into the cassette holder and the slider is not opened. The figure 3 shows the state where the cassette is pushed in to open the slider. The figure 4 shows the cassette moved in the direction to take it out from the cassette holder. Indicates the status.
In FIGS. 2 to 4, 7 is a slider lock,
Reference numeral 8 is a second hole, 9 is a first hole, and 10 is a notch in the lid. The same reference numerals as those in FIG. 1 correspond to the same parts, an arrow c is an inserting direction of a cassette, and an arrow d is an ejecting of a cassette. Indicates the (discharge) direction.

The operation of the embodiment shown in FIG. 1 will be described below with reference to FIGS.

The cassette holder 2 has a notch in the lid 11 of the cassette 1.
The protrusion 3 is provided at a position corresponding to 10 and contacts the slider 6 of the cassette 1, and the protrusion 4 is provided at a position corresponding to the slide lock 7 facing the groove 6 ′ provided on the slider 6 of the cassette 1. . A protrusion 5 is formed above the protrusion 4 on the cassette take-out side at a position where the slider lock 7 abuts when the cassette 1 is inserted with the slider 6 closed.

As shown in FIG. 2, when the cassette 1 is inserted into the cassette holder 2, the protrusions 3 provided on the cassette holder 2 pass through the notches 10 formed in the lid 11 of the cassette 1 and come into contact with the slider 6. Contact.

At this time, the protrusion 5 on the protrusion of the cassette holder 2 and the slider lock 7 whose one end is fixed to the cassette body 1 ′ of the cassette 1 come into contact with each other, and the slider lock 7 is bent and displaced to move into the groove 6 of the slider 6. When the slider 6 is disengaged from the second hole 8 formed in ′, the slider 6 becomes movable.

FIG. 3 shows the cassette 1 from the state of FIG.
The slider lock 7 is released from the protrusion 4 formed on the cassette holder 2 and is formed in the groove portion 6 ′ of the slider 6 by inserting the slider 6 in the direction. It is locked in the first hole 9.
As a result, the slider 6 maintains the open state. At this time, the protrusion 5 on the protrusion is located in the second hole 8 of the slider 6.

The R-DAT starts the tape loading operation when the lid 11 of the cassette 1 is opened from the state shown in FIG. 3 and mounted in a predetermined position of the recording / reproducing mechanism.

FIG. 4 is an explanatory view of the cassette take-out operation. When the cassette 1 is moved in the take-out direction shown by the arrow d, the projection 5 on the ridge contacts the inner wall of the second hole 8 of the slider 6. Upon contact, the left end of the protrusion 4 in the drawing pushes up the slider lock 7 and bends the slider lock 7 so as to release the slider lock 7 from the first hole 9 of the slider 6. When the cassette 1 is further moved from this state in the direction of the arrow d, a force in the closing direction acts on the slider 6 due to the contact between the protrusion 5 on the protrusion and the second hole 8. Then, along with the movement in the direction of arrow d for taking out the cassette 1,
The slider 6 is closed, and when the cassette 1 is taken out from the cassette holder 2, the slider 6 is completely closed.

As a result, the slider 6 is surely opened and closed when the cassette 1 is inserted into and taken out of the cassette holder 2, and the slider 6 does not become incompletely closed especially at the time of removal.

〔The invention's effect〕

As described above, according to the present invention, it is possible to reliably open and close the slider of the cassette by only the relative movement of the cassette and the cassette holder. It is possible to provide a cassette holder with high performance and excellent function.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the cassette holder according to the present invention, and FIGS. 2, 3, and 4 are cross-sectional views showing the operation of the cassette holder shown in FIG. FIG. 6 is a top perspective view of an R-DAT cassette to which the present invention is applied.
The figure is a rear perspective view of the R-DAT cassette shown in FIG. 1 ... Cassette, 1 '... Cassette body 2 ... Cassette holder, 3 ... Projection 4 ... Projection, 5 ... Projection on projection 6 ... Slider, 6' ... Groove 7 ... Slider Lock, 8 ... Second hole 9 ... First hole, 10 ... Notch 11 ... Lid, 12 ... Magnetic tape

Claims (1)

[Claims] 1. A slider lock having a built-in magnetic tape, having a slider on one surface and a lid on the front end, for locking the slider in an open state and a closed state, respectively. In order to lock the slider in each of the open state and the closed state in combination, the first hole on the front end side provided in the slider in the moving direction thereof and provided behind the first hole. In a cassette holder for inserting, holding, and ejecting a cassette having a second hole, a ridge formed corresponding to the first hole and the second hole in the moving direction of the slider, and the ridge. A protrusion provided at one end opposite to the front end on the upper side and a protrusion for locking the end of the slider on the front end side of the cassette to be inserted are provided, and the second hole is Engages with the slider lock when the slider is closed Rutotomoni the first hole engaged with the slider lock the slider in the opened state,
The protrusion provided on the ridge is provided at a position that engages with the second hole when the slider is in an open state, and the protrusion provided on the ridge when the cassette is ejected is provided on the second hole. Engagement and the projecting front end portion releases the engagement between the slider lock and the first hole, thereby reliably closing the slider in association with the ejecting operation of the cassette. A cassette holder characterized in that