JPS623456A - Preventing device for erroneous insertion of cassette - Google Patents

Abstract

PURPOSE:To prevent erroneous insertion of a cassette by providing the run-off part at either of the cassette or an information memory media recording/ reproducing device, and providing an erroneous insertion preventing member to prevent the insertion when the cassette is erroneously inserted to other side. CONSTITUTION:On an A surface 1a and a B surface 1b of a cassette 1, respectively two run-off grooves 2 and 2 are provided along the inserting direction from the tip of the inserting direction of the cassette 1 to the vicinity of the rear edge. On the other hand, in the inner direction of a cassette inserting port 4 of an information memory media recording reproducing device 3, two pins 5 and 5 are provided in the condition orthogonal in the inserting direction of the cassette 1 and in the condition to enter grooves 2 and 2 of the A surface 1a of the cassette 1 or the grooves 2 and 2 of a B surface 1b. Consequently, when the cassette 1 is inserted into the inserting port 4 in the erroneous direction, the cassette 1 is hung on the pins 5 and 5, and it cannot be inserted.

Description

Detailed Description of the Invention [Technical Field of the Invention] The present invention provides a cassette cassette insertion method for preventing erroneous insertion of a cassette containing an information storage medium when inserting the cassette into an information storage medium recording and reproducing device. Regarding prevention devices.

[Technical background of the invention and its problems]

Conventionally, when inserting a cassette containing an information storage medium into an information storage medium recording and reproducing device, the insertion direction indicated on the cassette by an arrow or the like is visually checked to prevent incorrect insertion. It was.

However, since the conventional cassette can be inserted in a direction other than the indicated insertion direction, there is a problem that incorrect insertion may occur if the insertion direction is incorrectly confirmed.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and an object thereof is to provide a cassette erroneous insertion prevention device that can easily and reliably prevent erroneous insertion of a cassette.

[Summary of the invention]

In order to achieve the above object, the present invention provides a cassette misinsertion prevention device that prevents misinsertion of a cassette containing an information storage medium when the cassette is inserted into an information storage medium recording and reproducing device. Either the cassette or the information storage medium recording/reproducing device is provided with a relief portion, and the other is provided with a relief portion that engages with the relief portion when the cassette is inserted in the correct direction, allowing insertion of the cassette. The present invention is characterized in that, when the cassette is inserted in the wrong direction, an erroneous insertion prevention member is provided that engages with a portion other than the relief portion to prevent insertion of the cassette.

[Embodiments of the invention]

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 3.

Reference numeral 1 in FIGS. 4 to 6 is a cassette containing an information storage medium, and the A side (front side) 1a and the 8th side (back side) 1b of this cassette 1 each have two grooves (recesses) 2. 2 are provided along the insertion direction from the tip of the cassette 1 in the insertion direction to near the rear end.

On the other hand, 3 is an information storage medium recording/reproducing device, and two pins (erroneous insertion prevention members) 5° 5 are provided inside the cassette insertion slot 4 of the information recording medium recording/reproducing device 3 in the insertion direction of the cassette 1. The grooves 2, 2 on the A side 1a of the cassette 1 or the grooves 2, 2 on the 8th side 1b of the cassette 1 are provided in a state perpendicular to the cassette 1.

Therefore, the cassette 1 is inserted into the insertion slot 4 of the information recording/reproducing device 3.
When inserted in the correct direction, the pins 5.5 enter the grooves 2, 2 and the cassette 1 is guided by these pins 2.2.

However, if the cassette 1 is inserted into the insertion slot 4 in the wrong direction, the cassette 1 will get caught on the pins 5 and cannot be inserted.

Therefore, incorrect insertion of the cassette 1 can be easily and reliably prevented. Furthermore, positioning within the information storage medium recording/reproducing device 3 can be easily performed.

Next, a second embodiment of the present invention will be described with reference to FIGS. 4 to 6.

Reference numeral 11 in FIGS. 1 to 3 is a cassette containing an information storage medium, and both sides 11a and 11bk of this cassette 11 are
: is the groove (relief part) 12, 12 is the above cassette 1, respectively.
1 along the insertion direction from the insertion direction tip to the vicinity of the rear end.

On the other hand, 13 is information memory! The cassette insertion slot 14 of this information storage medium recording and reproducing device 13 is an I1 body recording and reproducing device.
There are two pins (all insertion prevention members) 15.1 inside the
5 is provided in a state perpendicular to the insertion direction of the cassette 11 and in a state that it can enter into the grooves 12, 12 of the cassette 11.

Therefore, the cassette 11 becomes the information storage medium recording/reproducing device 1.
When inserted into the insertion slot 14 of 3 in the correct direction, the pin 15
．． 15 enters the groove 12.12, and the cassette 11 is guided by this pin 15.15.

However, if the cassette 11 is inserted into the insertion slot 14 in the wrong direction,
When inserted, the cassette 11 gets caught on the pin 15.15 and cannot be inserted.

Therefore, incorrect insertion of the cassette 11 can be easily and reliably prevented. Furthermore, positioning within the information storage medium recording/reproducing device 13 can be easily performed.

Next, a third embodiment of the present invention will be described with reference to FIGS. 7 to 9.

Reference numeral 21 in FIG. 7 is a cassette containing an information storage medium, and grooves (relief portions) 22 and 22 are formed in the middle and slightly forward portions of both sides 21a and 21b of the cassette 21, respectively, in the insertion direction of the cassette 21. It is located along.

On the other hand, reference numeral 23 denotes an information storage medium recording/reproducing device, and a substantially dogleg-shaped rotating lever (erroneous insertion prevention member) 25.
25 are provided. Each of the rotating levers 25, 25 has a substantially doglegged bent portion rotatably supported on a rotating shaft 26, and rollers 27, 28 are provided at both ends thereof.

Therefore, the cassette 21 becomes the information storage medium recording/reproducing device 2.
When the cassette 21 is inserted into the insertion slot 24 in the correct direction, first, as shown in FIG.

21b, the tip corner of the cassette 21 hits the rotating lever 25.25 and pushes the rotating lever 25.25. Then, as the insertion of the cassette 21 progresses, the eighth
As shown in Figure (b), the rotating lever 25.25 is pushed by the cassette 21 and rotates around the rotating wheel 26.26. As a result, the rear rollers 28, 28 are moved to the cassette 2.
1 and along the sides 2Ia and 21b of 1.

However, the cassette 21 is inserted into the insertion slot 24 in the wrong direction.
When the cassette 21 is inserted into the cassette 21, as shown in FIG.
Since there are no grooves 22 and 22 on a and 21b, the roller 2 on the front side
7.27 is caught and the rotating lever 25.25 cannot be rotated. Therefore, the cassette 21 cannot be inserted any further.

Therefore, incorrect insertion of the cassette 21 can be easily and reliably prevented. Furthermore, positioning within the information storage medium recording/reproducing device 23 can be easily performed.

Next, a fourth embodiment of the present invention will be described with reference to FIGS. 10 to 13.

Reference numeral 31 in FIG. 10 is a cassette containing an information storage medium, and both corners of the leading end of the cassette 31 in the insertion direction are provided with tapered parts (relief parts>32, 32), and both corners of the rear end are provided with right angles. It becomes.

On the other hand, 33 is an information storage medium recording and reproducing device, and a pair of claw members (W4 insertion prevention members) 35 and 35 are provided inside the cassette insertion slot 34 of the information recording medium recording and reproducing device 33 in the insertion direction of the cassette 31. freely move in the direction orthogonal to
Moreover, it is provided so that it can be elastically retracted outward by leaf springs 36 and 36.

Moreover, as shown in FIG.
6.36 is provided.

Therefore, the cassette 31 becomes the information storage medium recording/reproducing device 3.
When the cassette 31 is inserted into the insertion slot 34 in the correct direction, the tip of the cassette 31 will be inserted into the claw member 35 as shown in FIG. 12(a).
．． 35, and eventually the tapered portion 32.32 of the cassette 31 comes into contact with the tapered portion 36.36 of the claw member 35.35. Furthermore, when the cassette 31 is inserted, the first
As shown in FIG. 2(b), the tapered portion 32 of the cassette 31
．． 32 pushes against the tapered portions 36, 36 of the pawl members 35.35, thereby causing the pawl members 35.35 to move outwardly. Then, when the cassette 31 is further inserted, FIG.
As shown in C), the tapered portion 36. of the pawl member 35.35.
36 comes off from the tapered portion 32, 32 of the cassette 31 and comes into sliding contact with the side surface of the cassette 31.

However, if the cassette 31 is inserted into the insertion port 34 from the wrong direction, for example from the opposite direction, as shown in FIG. It corresponds to the part. Claw member 35.3
5 cannot move in the insertion direction of the cassette 31, so the cassette 31 cannot be inserted any further.

Therefore, incorrect insertion of the cassette 31 can be easily and reliably prevented. Furthermore, positioning within the information storage medium recording/reproducing device 33 can be easily performed.

Next, a fifth embodiment of the present invention will be described with reference to FIGS. 14 and 15.

Reference numeral 41 in FIG. 14 is a cassette containing an information storage medium, and relief grooves (relief portions) 42 (one side (only shown) are provided.

On the other hand, 43 is an information storage medium recording and reproducing device, and a rotating shaft 45 is provided inside a cassette insertion slot 44 of this information recording medium recording and reproducing device 43. A rotating lever (erroneous insertion prevention member) 46 is provided so as to be retractable from the cassette 41. Further, one parallel rod 46a of this rotating lever 46 has an arcuate round pawl 47.
However, each of the other parallel rods 46b is provided with a semicircular arc-shaped square claw 49 having a hook 48, and the square claw 49 is located closer to the insertion opening 44 of the cassette 41 than the round claw 47. . Further, the square pawl 49 corresponds to the escape groove 42 of the cassette 41.

Therefore, the cassette 41 becomes the information storage medium recording/reproducing device 4.
When the cassette 41 is inserted into the insertion slot 44 of No. 3 in the correct direction, the tip of the cassette 41 approaches the round claw 47 and the square claw 49,
As shown in FIG. 15(a), the square claw 49 eventually enters the escape groove 42 of the cassette 41, and the round claw 47 moves into the cassette 41.
Touch the tip of 1. Further, when the cassette 41 is inserted, the round claws 47 go over the corners of the cassette 41. As a result, as shown in FIG. 15(b), the rotation lever 46
rotates about the rotation shaft 45 in the direction of retreating from the cassette 41, and the round claw 47 completely rides on the cassette 41. At this time, the square pawl 49 is removed from the relief groove 42 and positioned on the cassette 41.

After that, the cassette can be inserted without any problem.

However, if the cassette 41 is inserted into the insertion slot 44 from the wrong direction, for example from the opposite direction, there will be no relief groove 42 at the position corresponding to the square claw 49, so the cassette 41
is caught on the hook 48 of the square claw 49, and the cassette 41 cannot be inserted any further.

Therefore, incorrect insertion of the cassette 41 can be easily and reliably prevented.

In addition, although the said 1st - 5th Example demonstrated the cassette for double-sided use, it is of course applicable also to the cassette for single-sided use.

〔Effect of the invention〕

As explained above, according to the present invention, there is provided a cassette erroneous insertion prevention device that prevents erroneous insertion of a cassette containing an information storage medium when the cassette is inserted into an information storage medium recording and reproducing device. , a relief part provided on either one of the cassette or the information storage medium recording/reproducing device, and a relief part provided on the other side, which engages with the relief part when the cassette is inserted in the correct direction, thereby inserting the cassette. The cassette is easily and reliably prevented from being erroneously inserted since the cassette is provided with an erroneous insertion prevention member that engages with a portion other than the relief portion to prevent the cassette from being inserted when the cassette is inserted in the wrong direction. It has excellent effects such as being able to

[Brief explanation of the drawing]

1 to 3 show a first embodiment of the present invention,
Fig. 1 is a schematic perspective view, Fig. 2 is a plan view of the cassette, Fig. 3 is a front view of the cassette, and Figs. 4 to 6 show a second embodiment of the present invention. FIG. 4 is a schematic perspective view, FIG. 5 is a side view of the force set, FIG. 6 is a front view of the cassette, and FIGS. 7 to 9 show a third embodiment of the invention. , FIG. 7 is a schematic plan view, FIG. 8(a)
(b) is a plan view showing the effect when the cassette is inserted in the correct direction, FIG. 9 is a plan view showing the effect when the cassette is inserted in the wrong direction, and FIGS. This shows the fourth embodiment, in which FIG. 10 is a schematic plan view, FIG. 11 is a perspective view showing the tip of the claw member, and FIG.
Figures 2 (a) to (C) are plan views showing the effect when the cassette is inserted in the correct direction, Figure 13 is a plan view showing the effect when the cassette is inserted in the wrong direction, Figures 14 and 2. FIG. 15 shows a fifth embodiment of the present invention.
4 is a schematic plan view, and FIGS. 15(a) and 15(b) are perspective views showing the effect when the cassette is inserted in the correct direction. DESCRIPTION OF SYMBOLS 1... Cassette, 2... Escape part (groove), 3... Information storage medium recording/reproducing device, 5... Erroneous insertion prevention member (
pin), 11...cassette, 12...relief part (groove)
, 13... Information storage medium recording/reproducing device, 15... Erroneous insertion prevention member (pin), 21... Cassette, 22...
- Escape part (groove), 23... Information storage medium recording/reproducing device, 25... Erroneous insertion prevention member (rotating lever), 31...
・Cassette, 32... Relief part (tapered part), 33...
- Information storage medium recording and reproducing device, 35... Erroneous insertion prevention member (claw member), 41... Cassette, 42... Escape part (escape groove), 43... Information storage medium recording and reproducing device, 4
6... Incorrect insertion prevention member (rotating lever), 47... Marugame, 49... Square claw. Applicant's Representative Patent Attorney Takehiko Suzue Figure 1 Figure 2 Figure 3 Figure 5 Figure 6, Figure 0 Figure 11 Figure 12

Claims (6)

[Claims] (1) In a device that prevents erroneous insertion of a cassette containing an information storage medium when the cassette is inserted into the information storage medium recording and reproducing device, the cassette or the information storage medium recording and reproducing device is A relief part provided on one side and a relief part provided on the other side, which engages with the relief part when the cassette is inserted in the correct direction to enable insertion of the cassette, and when the cassette is inserted in the wrong direction. A cassette erroneous insertion prevention device comprising: an erroneous insertion prevention member that engages with a portion other than the relief portion to prevent insertion of the cassette when the cassette is inserted. (2) The relief part is comprised of a groove provided along the insertion direction on at least one of the front or back surface of the cassette, and the erroneous insertion prevention member is comprised of a pin provided on the information storage medium recording/reproducing device. A member for preventing incorrect insertion of a cassette according to claim 1. (3) A patent claim characterized in that the relief part is constituted by a groove provided along the insertion direction on at least one side of the cassette, and the erroneous insertion prevention member is constituted by a pin provided in the information storage medium recording/reproducing device. The member for preventing erroneous insertion of a cassette according to item 1. (4) The escape part is constituted by a groove provided along the insertion direction of the cassette in the middle part of at least one side, and the erroneous insertion prevention member is a substantially dogleg-shaped rotating lever provided on the information storage medium recording/reproducing device. Claim 1 is characterized in that it consists of
A member to prevent incorrect insertion of a cassette as described in Section 1. (5) The relief part is a tapered part provided at at least one corner of the tip of the cassette in the insertion direction, and the erroneous insertion prevention member is inserted into the information storage medium recording/reproducing device in a direction perpendicular to the insertion direction of the cassette and in an outward direction. The member for preventing erroneous insertion of a cassette according to claim 1, characterized in that the member comprises a claw member which is provided to be elastically retractable and which retracts when pressed by a tapered portion of the cassette. (6) The relief part is constituted by a relief groove provided at the tip of at least one of the front or back surface of the cassette in the insertion direction, and the erroneous insertion prevention member is provided in the information storage medium recording/reproducing device and has a round claw and a square claw. However, when the cassette is inserted in the correct direction, the square claw engages with the clearance groove, and then the round claw engages with the tip of the cassette and rotates in the direction to retreat from the cassette.
Claim 1: The cassette is configured with a rotating lever that engages the tip of the cassette to prevent insertion, without engaging the relief groove when the cassette is inserted in the wrong direction. A member to prevent incorrect insertion of a cassette as described in Section 1.