JPH042448Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field> The present invention relates to a cassette loading/unloading mechanism for loading/unloading a magnetic tape cassette (hereinafter referred to as a cassette) in a magnetic recording device, magnetic recording/reproducing device, or the like.

<Prior Art> FIG. 4 is a schematic side sectional view of the main parts of a conventional cassette loading/unloading mechanism provided in the apparatus. Cassette 1 is inserted from the direction of arrow A through the cassette insertion slot to the position shown by the imaginary line.
At that position, the cassette holder 3 holds the cassette at the same position indicated by the imaginary line. Next, the cassette 1 is moved further backward and downward together with the cassette holder 3 (to the lower right in the figure), and placed at a predetermined cassette loading position shown by a solid line in the apparatus.

In such a loading position, the cassette 1 is
By the action of the cassette presser 3a of the cassette holder 3, the cassette is pressed against the first and second cassette stays 4a and 4b which are erected on the chassis 4. To hold cassette 1 stably,
At the cassette loading position, in the left and right direction in the diagram,
The cassette presser foot 3a holds both cassette stays 4a and 4b.
It must be located near the center between the two. Furthermore, even if the cassette retainer 3a is placed closer to the second cassette stay 4b than near the center, the cassette 1
The limit is up to the cassette lid 1b.

When the cassette 1 in the loading position is taken out of the apparatus from the cassette insertion opening, the cassette holder 3 moves from the position shown by the solid line to the position shown by the imaginary line in a movement path opposite to that during loading. At this time, the door 2, which is pivoted to open and close the cassette insertion port, opens from the solid line to the position shown by the imaginary line. In this case, since the tip 2a of the door 2 needs to be moved to the position shown by the imaginary line, the cassette holder 3a cannot be moved to the left side in the figure from the tip 2a of the door 2, which is located at the imaginary line. Therefore, the cassette presser foot 3a
The cassette holder 3, which is integrated with the cassette holder 3, cannot be moved to the left of the position shown in the figure.

For this reason, when the cassette is taken out, the amount L1 by which the rear surface 1c of the cassette 1 protrudes from the front panel 5 of the apparatus becomes small, and therefore, when the cassette 1 is grabbed and taken out from the cassette insertion slot, the gripping portion becomes smaller and cassette 1
It had the disadvantage that it was difficult to remove.

In order to eliminate this drawback, it is easy to position the cassette presser 3a on the right side with respect to the cassette holder 3, but for the reason mentioned above, that is, in order to hold the cassette 1 stably, the cassette presser 3a needs to be located near the center between both cassette stays 4a and 4b, and furthermore, since the cassette lid 1b is located on the right side of the cassette holder 3a, it is difficult to place the cassette holder 3a closer to the right side. , it does not solve the drawbacks.

Another structure that solves the above drawback is that the door 2 of the cassette insertion slot can be opened vertically in two directions, as shown in Figure 5.
A structure in which it is divided is also conceivable. In the case of such a structure, there are problems in that the number of parts increases and the structure becomes complicated. Moreover, in addition to this,
Although the tip 2'a of the upper door 2' no longer touches the cassette holder 3a, the tip 2''a of the lower door 2''
It is difficult to prevent this from hitting the cassette holder 3. As a result, the protrusion amount L in the case of Fig. 5
1' had practically no difference from that shown in FIG.

<Purpose of the invention> The present invention has been made in view of the above-mentioned points, and an object of the invention is to make it possible to obtain a sufficient amount of projection despite having a simple configuration.

<Configuration of the invention> In order to achieve the above-mentioned object, the cassette loading/unloading mechanism of the invention includes a cassette holder for holding a cassette, and a holder arm having a cassette holding part swingably attached to the cassette holder. a biasing member that biases the cassette holding portion of the holder arm to press a cassette loaded in the device into a predetermined position; and a biasing member that is slidably attached to the cassette holder and that A sliding plate that comes into sliding contact, a biasing member that biases the sliding plate along the sliding direction, and a regulating member that regulates the position of the sliding plate, and the sliding plate When the holder arm swings and a cassette is inserted or removed, the cassette holding part of the holder arm separates from the cassette, and when the cassette is loaded into the apparatus main body, the cassette holding part of the holder arm separates from the cassette. They are brought into contact and pressed into the predetermined position.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic side sectional view of the main parts of an embodiment of the present invention. The mechanism of this example is the panel 1 of the device.
2. This mechanism includes a cassette holder 6. This cassette holder 6 holds the cassette 1 inserted through the cassette holder insertion opening 15.
a bottom portion 6a with an opening for receiving the lower surface of the cassette 1;
It has two side parts 6b which are on both sides of the body and which guide the insertion of the body. Note that only one side portion is shown in the figure. The rear end (right end in the figure) of the bottom 6a of the cassette holder 6 is bent vertically upward to form a cassette receiver 6c;
The front end of cassette 1 is bent slightly downward.
cassette guide part 6 for smooth insertion of the cassette
d.

Holder pins 7 are supported on both sides 6b of the cassette holder 6 in a direction perpendicular to the plane of the paper, and holder arms 8 are each swingably attached to both holder pins 7. The holder arm 8 integrally connects a pair of arm portions 8a located on the outside of both side portions 6b of the cassette holder 6, and one end of each of the arm portions 8a on the cassette insertion opening 15 side. It has a cassette holding part 8b located above the front part and serving as a holding part for the cassette 1.

The holder pin 7 is located in the center of the arm part 8a, and in the center part of each arm part 8a, as shown in the figure,
A protrusion 8c extending downward is integrally formed. A first spring 9 as a biasing member is suspended between the protrusion 8c and the rear end of the side portion 6b of the cassette holder 6.
The arm portion 8a is urged counterclockwise in the figure around the holder pin 7.

Long grooves 6e extending in the left-right direction are formed on both sides 6b of the cassette holder 6. A protruding portion of the sliding plate 10 is inserted into the long groove 6e, so that the sliding plate 10 can slide in the left-right direction along the long groove 6e. This sliding plate 10 has a contact portion 10a extending vertically upward, and this contact portion 1
0a comes into contact with a regulating member 11 provided on the upper inner surface of the panel 12, thereby regulating the sliding position of the sliding plate 10. A second spring 13 serving as a biasing member that biases the sliding plate 10 to the left, that is, toward the cassette insertion port 15, is connected to the contact portion 10 of the sliding plate 10.
a and the front end of the side portion 6b of the cassette holder 6.

Next, the operation of the cassette loading/unloading mechanism having the above configuration will be explained. First, the cassette 1 is inserted as shown in FIG. At this time, the sliding plate 10 is restricted from sliding toward the cassette insertion port 15 by the regulating member 11, and one end 8d of the arm portion 8a of the holder arm 8 is attached to the sliding plate 10. This contact restricts the counterclockwise rocking movement of the holder arm 8, and the cassette holding portion 8b of the holder arm 8 is located above the door 2.
Thereby, the door 2 of the cassette insertion port 15 can be opened and closed without coming into contact with the holder arm 8.

When cassette 1 is inserted, cassette holder 6
is horizontally moved to the right by a driving means (not shown) as shown in FIG. At this time, the sliding plate 10 is slidably displaced relative to the cassette holder 6 toward the cassette insertion port 15 side by the spring force of the second spring 13 in order to separate from the regulating member 11. As a result, the contact between the one end 8d of the arm portion 8a of the holder arm 8 and the sliding plate 10 is released, and the holder arm 8 is oscillated counterclockwise by the spring force of the first spring 9. Then, the cassette 1 is pressed onto the bottom 6a of the cassette holder 6 by the cassette holding part 8b.

Thereafter, the cassette 1 is vertically lowered by a drive means (not shown) as shown in FIG. 3, and the mounting of the cassette 1 is completed. At this time, the cassette holder 6 is
The cassette 1 is pulled downward by a crimping mechanism (not shown), and the cassette 1 is held in a predetermined position, that is, by the spring force of the first spring 9, the holder arm 8 It is pressed by the cassette holding part 8b. Also,
The holder arm 8 is in contact with a corner of the sliding plate 10 at a portion closer to the cassette holding portion 8b, thereby preventing the holder arm 8 from swinging clockwise.

Next, the operation when taking out the cassette 1 from the state shown in the third figure will be explained. First, the cassette holder 6 is vertically raised by the above-mentioned driving means to the state shown in the second figure. At this time, the holder arm 8 swings slightly counterclockwise, and the cassette holding part 8 presses the cassette 1 onto the bottom surface 6a of the cassette holder 6.

The cassette holder 6 is horizontally moved leftward from this position by a drive means (not shown), and the first
The state shown in the figure will be reached. At this time, since the contact portion 10a of the sliding plate 10 contacts the regulating member 11, the sliding plate 10 moves rightward relative to the cassette holder 6 along the long groove 6e, and the holder arm 8 It slides into contact with one end 8d of the holder arm 8.
oscillate clockwise. As the holder arm 8 swings clockwise, the cassette holding part 8b comes to the upper side of the door 2, as shown in FIG.

In this way, in the present invention, since the cassette holding part 8b swings, the cassette holder 6 can be moved further to the left side, that is, to the cassette insertion opening 15 side, compared to the conventional cassette loading/unloading mechanism, and the cassette 1 The amount of protrusion L can be increased, and the cassette 1 can be easily taken out.

<Effects of the invention> As described above, according to the present invention, the holder arm having the cassette holder is oscillated and displaced, which is more effective than the conventional cassette loading/unloading mechanism in which the cassette holder is fixed. The cassette holder can be moved toward the cassette insertion port, and the cassette can be easily removed by increasing the amount of cassette protrusion with a relatively simple structure.

[Brief explanation of the drawing]

Figures 1 to 3 show essential parts of an embodiment of the present invention, with Figure 1 being a side sectional view showing the state of insertion and removal of the cassette, and Figure 2 showing the state of the cassette being loaded and removed. 3 is a side sectional view showing a state in which the loading of the cassette is completed, FIG. 4 is a side sectional view of a conventional example, and FIG. 5 is a side sectional view of another conventional example. 1...Cassette, 3, 6...Cassette holder,
8...Holder arm, 8b...Cassette holding part,
9, 13...first and second springs, 11...regulating member, 10...sliding plate.

Claims (1)

[Scope of Utility Model Registration Claim] A cassette loading/unloading mechanism for loading/unloading a cassette used in a magnetic recording/reproducing device, etc., comprising a cassette holder for holding a cassette, and a cassette holder swingably attached to the cassette holder. a holder arm having a cassette holding part; a biasing member for urging the cassette holding part of the holder arm to press a cassette loaded in the device into a predetermined position; A sliding plate that can be attached to the holder arm in sliding contact with the holder arm, a biasing member that biases the sliding plate along the sliding direction, and a regulating member that regulates the position of the sliding plate, The holder arm swings due to the sliding of the sliding plate, and when inserting and removing the cassette,
The cassette holding part of the holder arm is spaced apart from the cassette, and when the cassette is loaded into the apparatus main body, the cassette holding part of the holder arm comes into contact with the cassette and presses it into the predetermined position. Cassette loading/unloading mechanism.