JPS62219358A - Cassette loading device - Google Patents

Abstract

PURPOSE:To prevent the misinsertion of plural kinds of cassettes whose size is different, and to exactly insert a cassette into a cassette holder, by providing a cassette detecting means on a guide body having a guide groove for guiding the insertion of plural cassettes. CONSTITUTION:A guide body 3 provided with a groove which is a little wider than the width of a cassette is provided on the cassette insertion port of a device, and an insertion control member for detecting whether the position of the cassette and its insertion attitude are normal or not, and obstructing an insertion to a cassette holder 18, when they are abnormal is provided. Accordingly, a normal insertion can be executed in an early stage and the work efficiency is improved. Also, since a groove which coincides roughly with width of the cassette, even a worker who has no knowledge at all regarding the device can discriminate easily the inserting position, and the operability is improved. By only engaging the cassette to the groove of the guide body 3, the inserting position can be positioned with the high accuracy, and the workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette mounting device used in a magnetic recording/reproducing device.

2. Description of the Related Art Conventional cassette loading devices include, for example, the
It is shown in Japanese Patent No. 70966. In this case, a switch for detecting the completion of cassette insertion is placed behind a convex guide provided in the center of the cassette holder. In this configuration, when the cassette is inserted in the correct state along the convex guide, the detection switch is operated to operate the reciprocating drive mechanism of the cassette/soto holder.

Problems to be Solved by the Invention However, with the above configuration, when using multiple types of cassettes of different sizes, for example, the small cassette is placed on one side of the cassette holder (either the left or right side across the convex guide). position). In other words, even if the cassette is not inserted into the cassette holder, the cassette will not be inserted into the cassette holder, and abnormalities cannot be confirmed until after the insertion is complete, resulting in a loss of time and poor work efficiency.

Furthermore, when inserting a set with small or medium force, it is difficult to determine the correct insertion position relative to the wide insertion opening, resulting in poor operability when used by an operator who does not have knowledge of the device. Furthermore, even if you have the knowledge, you must manually control the position of the cassette to insert it, which is extremely inefficient. Further, in a device having an automatic cassette feeding mechanism within the holder, if the automatic feeding operates despite abnormal insertion, the cassette, holder, or feeding mechanism may be damaged. Furthermore, there is a problem in that when a small cassette is inserted all the way, it is difficult to take out the cassette because there is little exposed part from the holder.

In view of this, it is an object of the present invention to provide a cassette mounting device that can prevent erroneous insertion of a plurality of types of cassettes with different sizes and ensure reliable insertion into a cassette holder.

Means for Solving the Problems The present invention provides a guide member having a guide groove for guiding the insertion of a plurality of cassettes, a cassette detecting means provided on the guide member, and a cassette holder provided inside the guide member. This cassette mounting device includes a drive means for reciprocating the cassette holder, and a cassette insertion restriction member provided between the guide and the cassette holder.

Operation The present invention has the above-described configuration, and when inserting a cassette, the cassette is mounted in the guide groove of the guide body, and it is detected that the cassette is being mounted in a normal position and in a normal posture, and the cassette is inserted in front of the cassette holder. The restriction member is released to enable insertion into the cassette holder, and when the cassette is to be taken out, the insertion restriction member is released in conjunction with the backward movement of the cassette holder to allow the cassette to be taken out.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 14. In FIG. 1, reference numeral 1 denotes a cassette guide, which is attached to the outside of the exterior 2 and has a cassette guide groove 3,4.5'ii in the center. As shown in FIG. 2, these guide grooves have a shape in which they are stacked in the height direction within the same plane, and each groove width is set slightly wider than the cassette width. In addition, a pair of detectors 6 are installed on each side of this groove.
, 6', 7.7', and 8.8' are provided, and when the cassette is inserted into the groove, an operating signal is generated respectively.Meanwhile, detectors 9, 10, and 11 are also provided on the bottom of the groove. The front lid lock release piece insertion openings 16, 16, and 17 are provided on the bottoms of the three types of cassettes 12, 13, and 14 shown in FIG.
is configured so as not to generate an operation signal when the insertion port is normally placed at the detector position. Next, reference numeral 18 denotes a cassette holder which has grooves 19, 20 and 21 on its bottom surface which are continuous from the grooves 3 and 4.6 of the guide body, as shown in FIG. This cassette holder 18 also has a support shaft 22 at the front.
A lever 24.25 is rotatably held at an angle of 23° and is biased by a screw spring 26.27, and on one side is provided a pin 28.29 against which the front surface of the cassette abuts. and the other is a detector such as a photocoupler 30.31
'i make it work. Also, on the side of the cassette holder 18 are a pair of rollers 32°32', 33, 33', 34 that press both sides of the upper surface of each cassette (12.13°14).
, 34' is fitted into the long groove 36 of the holder 180 as shown in FIG. 6, and tension springs 37, 38 are engaged at both ends of this shaft. Here, each of the rollers is provided with a diameter difference as shown in FIG. 8 in order to effectively press each cassette. Further, sliding guide pins 39 are integrally provided on both sides of the skein/gutter holder 18, and these pins are connected to the long grooves 42 (see FIG. (see). The racks 43 (see FIG. 1Q, omitted in FIG. 1) integrally provided on both sides of the cassette holder 18 are driven by a drive gear 44 interlocked with a drive motor (not shown). The cassette holder 18 moves and reciprocates between the cassette attachment/detachment position (see FIG. 10) and the reel stand attachment position. Next, reference numeral 46 denotes an insertion restriction member which is rotatably held by the side plates 40 and 41, and a torsion spring 46 is engaged with one side as shown in FIG. It is biased to rotate towards the 3rd side. Further, the other side of the insertion regulating member 45 is provided with an engaging protrusion 4a as shown in FIG. 6, one of which engages with a claw 60 of an arm 49 pivotally supported by a support shaft 48 to rotate in the direction of arrow a. It prevents movement. The arm 49 is connected to a solenoid 61 shown in FIG. 1 by a connecting plate 62. When the solenoid 61 operates, the claw 60 is released and the insertion regulating member 46 can be rotated.

Further, the arm 49 is urged to rotate counterclockwise by a torsion spring 63, and comes into contact with the stopper pin 54 and stops. Next, the slide plate 55 equipped with the support shaft 48 and the stopper pin 64 is slidably held by a guide pin 66 provided on the side plate 18, and one end is locked to the insertion restriction member 45. Therefore, by sliding in the direction indicated by the arrow, the insertion regulating member 46 can be rotated in the direction indicated by the arrow a.
The slide plate 65 can be slid by the arm 49 coming into contact with the stopper pin 67 during rotation and receiving further rotational force. If the rotational force of the screw spring 63 is set to be smaller than the rotational force of the torsion spring 46, the arm 49 will rotate first to release the claw 47, and then the slide plate 66 will slide. The insertion restricting member 46 can be rotated by the rotation. Further, if the claw 47 is formed of a roller, the load upon release can be reduced and the operation can be performed reliably.

The operation of the cassette loading device of this embodiment configured as described above will be described below. First, when installing the medium force set 13 shown in FIG.
When the cassette is installed as shown in FIG. 11, the pair of side detectors 7 and 7' both operate and detect that the cassette is being inserted normally in the width direction. However, cassette 13
If an attempt is made to mount the cassette on its side or into the large cassette groove 5, etc., only one of the detectors will operate and it will be determined that there is an abnormality. In addition, if the cassette is installed in the reverse direction, the detectors A and 7' on both sides detect a normal state, but the detector 1O installed on the bottom detects an abnormality, and the cassette 13 is inserted further. Even if an attempt is made, the regulating member 45 will prevent it. In this way, when each of the detectors 7, 7' and 10 detects that the cassette is installed in the predetermined groove in a normal position, the solenoid 6
1 performs a suction operation, first rotates the arm 49 to release the claw 47 as shown in FIG. 12, and then rotates the insertion regulating member 45 as shown in FIG. Open. Next, the cassette 13 is further pushed and inserted into the holder 18, and when it is completely inserted as shown in FIG. 14, the lever 24.26 rotates and the detector 30.31 detects the completion of insertion. and a drive gear 44 shown in FIG. 1o.
rotates to move the cassette holder 18, and as shown in FIG.
At the same time, the suction operation of the solenoid 51 is released to return the insertion regulating member 45 to its initial state. This state is shown in FIG. 1, where the cassette 13 is
The height and position are regulated by 1.62.63, and the roller 33,
It is pressed and held at 33'. The height is made to be the same even when other cassettes are installed. Next, when taking out the cassette 13, the solenoid 61 performs a suction operation by an external EJECT operation, rotates the insertion regulating member 45 as described above, and simultaneously moves the cassette holder 18.
Move the lever backwards, and after feeding it to the position shown in Fig. 14, take it out by hand. At this time, the rollers 32 to 34' sequentially ride on the insertion regulating member 45 and stop as shown in FIG. 9, and after the detector 7.7' detects that the cassette 13 has been completely removed, the suction of the solenoid 51 is released. When the insertion regulating member 45 returns, it also returns to its initial position. If the main power of the apparatus is turned off and then turned on again without completely removing the cassette 13 from inside the cassette holder 18, the detector 10 on the bottom of the groove will detect abnormal insertion and the solenoid 61 will not suck the cassette 13, but the cassette 13 has already been removed. is inserted into the holder 18 and there is no problem. The same is true when installing another large cassette 12 or small cassette 14; when the large cassette 12 is inserted, detectors 6, 6', and 9 are combined, and when the small cassette 14 is inserted, detectors 8, 8' are used. , 11 combinations detect normal insertion.

In this embodiment, the details of the reel stand device are omitted, but of course a mechanism is required to move the reel according to the type of cassette, and the detector 6° provided on the groove side of the cassette guide 3 serves as a means for detecting the type of cassette. 7.8 or 6'l 7/,
You can use g/.

Furthermore, if the bottom surface of each groove of the cassette guide 3 is colored with a different color or marked with letters, the insertion position of each cassette can be more clearly identified.

Effects of the Invention As described above, according to the present invention, the guide member 3 having a groove slightly wider than the cassette width is provided in the cassette insertion opening of the device, and it is possible to detect whether the position and insertion posture of the cassette are normal or not. By providing an insertion restriction member that prevents the cassette from being inserted into the cassette holder 18, the cassette can be inserted normally at an early stage, improving work efficiency. Furthermore, by providing a groove that substantially matches the width of the cassette, even an operator with no knowledge of the apparatus can easily determine the insertion position, improving operability.

Furthermore, simply by engaging the cassette in the groove of the guide j, the insertion position can be positioned with high precision, improving work efficiency. Further, since the cassette can be inserted into the cassette holder 18 only in a normal state, damage to the cassette etc. can be prevented even in a device equipped with an automatic feeding mechanism within the holder, which has a great practical effect.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the state of a cassette mounting device according to an embodiment of the present invention when mounting is completed, Fig. 2 is a front view of the cassette guide of the same embodiment as seen from the insertion direction, and Fig. 3 is a plan view showing the state when mounting is completed. A plan view showing the three types of cassettes installed in the same embodiment, Fig. 4 is a front view showing the cassette installation state when installation is completed, Fig. 6 is a perspective view of the main parts of the cassette holder, and Fig. 6 shows insertion restrictions. Fig. 7 is an explanatory view of the installation of the return screw υ spring of the insertion restriction member, Fig. 8 is an explanatory view of the cassette pressing roller unit, and Fig. 9 is an illustration of the insertion restriction member. 10 is a side view showing the guide and drive mechanism of the cassette holder; FIG. 11 is a plan view showing the cassette mounted on the cassette guide; FIG. The figure is an explanatory diagram of the first stage operation of the rotation mechanism of the insertion restriction member, Figure 13 is an explanatory diagram of the second stage operation of the rotation mechanism of the insertion restriction member, and Figure 14 is a state in which the cassette is installed in the cassette holder. FIG. 1...Cassette guide, 6-11...
Detector, 18...Cassette holder, 46...
...Insertion regulating member, 49...Arm, 61
... Solenoid, 65 ... Slide plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4) Figure 4 Figure 5 q Figure 6 Figure 7 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13

Claims (2)

[Claims] (1) A cassette guide that has a front lid lock release part on the bottom surface and has a step-like cross section formed by stacking multiple grooves that are at least slightly wider than the cassette widths of multiple cassettes of different widths in the same plane. a pair of first detection means provided on both sides of each groove of the cassette guide body, and a second detection means provided on the bottom surface of each groove for detecting a front cover unlocking portion of the cassette. a cassette holder located inside the cassette guide and into which the cassette is mounted; a drive means for reciprocating the cassette holder from a cassette mounting/dismounting position to a reel stand mounting position; and a drive means located between the cassette guide and the cassette holder. An insertion restriction member for preventing the cassette from advancing from the cassette guide to the cassette holder and a release means for the insertion restriction member are provided, and when the cassette is installed, the insertion is restricted by signals from the first and second detection means. A cassette mounting device characterized in that it is configured to release the member and release the insertion restriction member by a backward motion of the cassette holder when the cassette is taken out. (2) The cassette loading device according to claim 1, wherein the insertion restricting member provided between the cassette guide and the cassette holder is configured to block the entire cassette insertion opening of the cassette holder.