JPH05986Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a cassette loading mechanism suitable for a cassette deck, particularly an R-DAT type cassette deck. The present invention relates to a cassette loading mechanism for a cassette deck in which a slider for taking out a cassette deck has a bottom part formed to be extendable and retractable by a mounting base and a slide lid.

(Prior Art and its Problems) Many cassette loading mechanisms that insert a cassette into a cassette holder provided in a deck main body and then eject the cassette directly push the cassette into the cassette holder.

However, recently, in order to improve the sound quality and prevent dust from adhering to the cassette tape, the cassette is usually closed with a front cover, and when the cassette holder is inserted, the front cover is opened to record and play back. R-
DAT method is used.

In this R-DAT type cassette, it is necessary to open the front cover in the process of pushing it into the cassette holder, and therefore it is necessary to insert the cassette from the front of the cassette holder at approximately the same height. Therefore, a space must be provided in front of the cassette holder that is equal to the width of the slider, and must be formed so that the cassette will not fall out of this space. This results in a complex loading mechanism as a whole, which not only complicates insertion and ejection operations but also increases material costs and
This is also a reason for the rise in assembly and construction costs.

(Means for solving the problem) The present invention was made to solve the above problem, and the bottom part of the slider is formed to be expandable and retractable by a mounting base and a slide lid that overlaps with the mounting base. Features. In other words, when the cassette is pushed in, the slide lid moves to the front of the cassette holder together with the holder, so the cassette reaches the front of the cassette holder without falling out of space.Then, with the slide lid overlapping the holder, push the cassette further to ensure that it is inserted securely. Let them wear it. As a result, the front cover of the R-DAT type cassette can be opened smoothly due to the length provided with the opening pin, etc., and the cassette can be inserted into the cassette holder.

(Example) The cassette loading mechanism of the cassette deck of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view of the deck main body 1. Inside the deck body 1, a cassette holder 2, its lifting and lowering mechanism, a hub drive mechanism, and a recording head mechanism are each attached to a chassis 11 (none of which are shown). The slider 3 transmits driving force from a motor M provided on a side 31 to each gear A, B, C, . . . via a pulley P. The slider 3 travels on a rack R attached to the chassis 11 by a gear C receiving the driving force of a motor M.

On the other hand, the cassette feed frame 4 on the slider has a pressing portion 41 projecting downward from the rear side of the upper surface.
A rack provided on the bottom of the cassette feeding frame 4 meshes with a small-diameter pinion (not shown) coaxial with the gear C, so that the cassette feeding frame 4 travels in the same direction as the slider 3. As will be described later, at the same time as the slider 3 travels to the front surface of the deck body 1, the cassette feed frame 4 also travels to a predetermined position where the cassette 5 is inserted into the cassette holder 2.

The bottom portion 32 of the slider 3 is formed by a mounting base 6 and a slide lid 7, as shown in the plan view of FIG. 2 and the side view of FIG. The mounting stand 6 is fixed to the slider 3, and the slide lid 7 is located on the cassette holder side, with a pair of downward protrusions 71, 7.
1 corresponds to both the long grooves 61, 61 of the mounting base 6, and the recesses 72, 72 at the other end correspond to the protruding sides of the slider 3 (not shown).
are guided and slid to overlap each other on the placing stand 6.

Next, the insertion and ejection of a cassette using the cassette loading mechanism of the present invention will be explained.

As shown in the schematic side cross-sectional view of FIG. 4, when the slider 3 is pulled out from the front of the deck body 1, the cassette feeding frame 4 is also pulled out in the same way. A cassette 5 is stored in this cassette feeding frame 4. Then, push the slider 3 toward the deck body. As a specific means for pushing in, a switch (not shown) may be turned on to drive the motor M, or it may be done manually. When the slider 3 is pushed toward the deck body, each of the gears A, B, C...
The cassette feed frame 4 is moved by a gear train such as Rack R, etc.
As shown in FIG. 5, the slide lid 7 of the slider 3 closes the space O in front of the cassette holder 2, and the cassette 5 is prevented from falling.
Next, push the slider 3 further and remove the deck body 1.
When the cassette 5 reaches the front surface of the cassette holder 2, the cassette 5 is securely inserted into the cassette holder 2 by the cassette feeding frame 4, as shown in FIG. At the same time, the slide lid 7 overlaps the stand 6 and is reduced to a so-called double lid shape.
Next, the cassette holder 2 is lowered by the lifting and lowering mechanism to the hub drive mechanism and positioned at a predetermined recording and playback position. From this state, although not particularly shown, the magnetic tape in the cassette 5 is pulled out, and this magnetic tape is wound around the rotating magnetic head H in a substantially M-shape to enable recording and reproduction.

Next, the operation of ejecting the cassette 5 from the cassette holder 2 will be explained with reference to FIGS. 6, 5, and 4.

First, the cassette holder 2 is
is raised and the cassette 5 and cassette holder 2 are housed in the cassette feeding frame 4, after which the slider 3 and the cassette feeding frame 4 move toward the outside of the deck body 1. A pressing portion 41 provided on the rear side of the upper surface of the cassette feeding frame 4 comes into contact with the rear end of the cassette 5 in the cassette holder 2 as the cassette feeding frame 4 moves forward. and,
When the cassette feed frame 4 further moves forward,
The cassette 5 is pushed out by the pressing portion 41, comes out of the cassette holder 2, and is ejected to the outside of the deck body 1 together with the cassette feeding frame 4.

(Effects) As mentioned above, the cassette loading mechanism of the cassette deck of the present invention has the bottom of the slider made to be extendable and retractable using the mounting base and the slide lid that overlaps the top surface of the slider, so that the moving distance of the cassette itself can be shortened. Insertion of the cassette becomes extremely easy and reliable, and the cassette is not damaged. Furthermore, the presence of the sliding lid prevents the cassette from falling into the deck body. Furthermore, R-
In DAT type cassettes, the front cover can be easily opened due to the length provided with an opening pin, etc., so high quality sound can be obtained without contaminating the cassette tape with dust.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the deck body, Fig. 2 is a plan view showing the mounting base forming the bottom of the slider and the slide lid, Fig. 3 is a side view of the same, and Figs. FIG. 3 is a schematic side cross-sectional view showing a state in which a cassette is inserted and ejected by the cassette loading mechanism. 1...Deck body, 2...Cassette holder,
3...Slider, 32...Slider bottom, 4
...cassette feed frame, 5...cassette, 6...placement stand, 7...sliding lid.

Claims (1)

[Scope of utility model registration request] By moving the cassette feed frame on the slider along with the slider, the cassette feed frame inserts the cassettes in the cassette feed frame into the cassette holder, and the cassette ejected from the cassette holder is stored in the cassette feed frame and taken out. 1. A cassette loading mechanism for a cassette deck, characterized in that the bottom of the slider is formed to be extendable and retractable by a mounting base and a slide lid that overlaps with the mounting base.