JPS6370980A - Cartridge for information storing medium - Google Patents

Abstract

PURPOSE:To easily confirm a false erasure preventing member to be either for one side or for the other side by forming the false erasure preventing member so as to be a shape, which has a part to be operated on only the one side of the exposed parts of both the faces of a cartridge main body, arranging them one on one surface of both the surfaces of the cartridge main body, and besides, providing each of the false erasure preventing members with the holding means for a changing-over position. CONSTITUTION:Both false erasure preventing members 14, 15 have first projecting parts 55 which project from the one end of a main body 54, second projecting parts 56 which project from the other end of the main body, and the pairs of elastic detaining tongues 57, 57 which project from the side part of the main body 54. And an actuator insert hollow part 61 is formed on the second projecting part 56, and a change-over operation can be done only by inserting a bar shaped actuator 62 into the hollow part and sliding it, and it can not be moved carelessly. Besides, the false erasure preventing members 14, 15 are fixed in a contrary direction to each other so that the actuator insert hollow parts 61 are not situated on the same face side of the cartridge main body 2. Thus, the false erasure preventing member can be confirmed to be either of A side or of B side.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an improvement in an information storage medium cartridge for accommodating an information storage medium such as an optical disk.

(Prior Art) In recent years, for example, information has been stored by irradiating the surface of an information storage medium such as an optical disk with narrowly focused light, or information is reproduced by detecting reflected light from the surface of the optical disk. Information storage media have been put into practical use.

Although such information storage media have extremely unique features such as being capable of high-density information storage and information reproduction, they may be susceptible to dust, lumps, etc., or scratches on the surface. There was a problem in that the progress of light, such as a laser beam, irradiated onto the surface was obstructed, making it impossible to accurately store and reproduce information.

Therefore, conventionally, the information storage medium is housed in an information storage medium cartridge (hereinafter simply referred to as a cartridge) to facilitate protection and handling of the information storage medium.

Additionally, the cartridge usually has a first
By slidably incorporating the erroneous erasure prevention member and the second erroneous erasure prevention member, and by sliding these erroneous erasure prevention members into predetermined positions, it is impossible to erase stored information on one side and the other side of the information storage medium. The structure is such that it can be done.

(Problems to be Solved by the Invention) However, in conventional cartridges, the direction of the operation surface of the accidental erasure prevention member is not clear, and it can be operated from either side of the cartridge. , there was a risk of switching between so-called side A and side 8 by mistake. Further, the conventional method has a problem in that it is not clear when the switching operation has been completed, which may give a sense of uneasiness.

The present invention has been made based on the above-mentioned circumstances, and its purpose is to make it easy to confirm whether the erroneous erasing prevention member is for the - side or the other side, and to ensure that the switching is completed. It is an object of the present invention to provide a cartridge for an information storage medium that can be clearly identified.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides a cartridge main body that houses an information storage medium therein, and a cartridge that is slidably incorporated into the cartridge main body and has a predetermined position. In the information storage medium cartridge, the information storage medium cartridge has a first accidental erasure prevention member and a second accidental erasure prevention member that make it impossible to erase stored information on the information storage medium by sliding the thumbtack into position. The prevention member is arranged in such a shape that it has an operated part only on one of the spraying parts on both sides of the cartridge body, and the operated parts are located on each side of the cartridge body, respectively. The erroneous erasure prevention member is provided with a holding means for holding the switching position.

(Function) That is, by having the above configuration, the present invention has -
There is only one operated part on one side and the other side for switching the erroneous erasure prevention member, which makes it clear which erroneous erasure prevention member is used, and prevents erroneous switching. In addition, since it has a holding means for holding the erroneous erasure prevention member at the switching position, it is possible to easily confirm the completion state of the operation by the sound generated during the holding operation.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. 1 and 2 show the external appearance of an information storage medium cartridge (hereinafter simply referred to as a cartridge) 1, the solid line arrow in the figure indicates the insertion direction of the cartridge 1 into the information processing device (not shown), and the broken line in the figure The arrow indicates the direction of extraction.

2 in the figure is a cartridge body formed by superposing two cover members 2a and 2b, and an optical disc 3 as an information storage medium is housed in this cartridge body 2. . This optical disc 3 has an outer diameter of approximately 130 m+, for example.

It is formed to have an inner diameter of about 15 m and a thickness of 1.2 to 3 m, and has an information forming layer on at least one side that can be recorded or reproduced using a laser beam or the like.

The cartridge body 2 has openings on both sides for information processing, in which storage/reproduction heads (not shown) are inserted, and driving means (not shown) for holding and rotating the optical disc 3 are inserted. Opening 4 for
, 4 are formed, and a shielding member (
5 (hereinafter referred to as a shutter) is slidably attached.

As shown in FIG. 3, this shutter 5 has a shape similar to that of a band plate bent into a U-shape, and near the bent portion there is a protrusion 7 that constitutes a guide means 6, which will be described later.・・・
is extruded so as to protrude toward the inner surface, and engagement pieces 8, 8 are formed at the leading end of the image.

On the other hand, the cartridge main body 2 has guide grooves 9.9 formed along the opening and closing directions of the shutter 5 at the front edges of both sides, and guide grooves 10.9 along the opening edges of the opening 4.4.
10 is now formed. When the shutter 5 is viewed from the cartridge body 2, the protrusions 7 engage with the guide grooves 9.9 to constitute the guide means 6. The engagement piece 8.8 formed at the tip engages with the guide groove 10.10, and the shutter 5 is in a close contact state that can reliably close the opening 4.゜4 is attached so that it can be slid freely to open and close.

Further, as shown in FIG. 4, the cartridge main body 2 is formed with an inclined guide portion 11, which serves as a portion over which the protrusion 7 protruding from the shutter 5 is fitted. The shutter 5 can be easily attached. The shutter 5 is sometimes installed by pushing the protrusions 7 in the direction of the arrows 6 in FIG. outward along (arrow 8.8 direction)
It gradually spreads out, and finally climbs over the R high part of the slope and fits into the guide groove 9.9.

At this time, the engaging piece 8.8 formed at the front end of the image of the shutter 5 engages with the guide groove 10.10, and the shutter 5 is mounted in a stable and slidable manner.

Further, as shown in FIG. 5, the shutter 5 is provided with a shutter locking plate 12, a shutter closing spring fixing plate 13, and the like.

The cartridge body 2 also includes one side of the optical disc 3 (
First and second erroneous erasure prevention members 14 and 15 are provided to prevent erroneous erasure of recorded data on the A side (hereinafter referred to as side A) and the other side (hereinafter referred to as 8th side). A notch recess 16 is formed as a detection part used for detecting sides A and B of 1.

Further, as shown in FIG. 5, one end of the shutter closing spring 20 is engaged with the shirt closing spring fixing plate 13 of the shutter 5, and the shutter 5 is in a position where it closes the opening 4. The shutter 5 is always biased in the direction of movement (in the direction of arrow C), and a shutter lock mechanism 21 is provided in the direction of movement so that the shutter 5 can be fixed in a position where it closes the opening 4.4. It has become.

The shutter lock mechanism 21 is rotatable via a support shaft 22, and is always rotated counterclockwise (in the figure) by a spring 23.
The locking member 24 is biased in the direction indicated by the arrow) and has its free end interposed in the movement path of the shutter locking plate 12 of the shutter 5.

The locking member 24 has a shape having an inclined surface 24a and a locking stepped portion 24b, and when the shutter 5 is closed, the tip of the shutter locking locking plate 12 moves to the sloped surface 24a.
The locking member 24 then slides and moves on the inclined surface 24a while being displaced against the biasing force of the spring 23.

When the shutter 5 reaches a position where the openings 4 are securely closed, the tip of the shutter locking plate 12 faces the locking step 24b, and the locking member 24 is moved counterclockwise by the biasing force of the spring 23. The locking step portion 24b is displaced in the direction indicated by the arrow, and the locking step portion 24b is locked to the shutter locking locking plate 12, and the shutter 5 is locked.

Further, the release operation of the shutter lock mechanism 21 is performed by pushing down the free end side of the lock member 24 against the biasing force of the spring 23 using the lock release bar 25 of the information processing device to engage the shutter locking plate 12. Stop portion 24b
It is designed to release the engagement with the

Further, as shown in FIGS. 6 and 7, the shirt shirt closing spring 20 has a wound portion 20a formed by winding a plurality of times in the middle portion, and both ends 20b and 20c extend in a substantially V-shape. It has a protruding shape.

A space 3 in which the winding portion 20a formed in the intermediate portion is surrounded by ribs 30 and 31 formed in the cover member 2b.
2, a locking part 33 curved at the tip of one end 81!2ob is engaged with an engagement recess 34 formed in the cover member 2b, and a curved engagement part 33 is curved at the tip of the other end 20c. As described above, the locking portion 35 is attached to the shutter closing spring fixing plate 13 of the shutter 5 while being engaged therewith.

The cover member 2b includes a shirt closure spring 20.
A pin 40 for easily attaching the shirt closure spring 20 is protruded at a position where the other end 20c does not touch the first end.

Further, as shown in FIG. 6, both ends 20b of the shirt closure spring 20 are formed on the cover members 2b and 2c constituting the cartridge main body 2.

20G intersects ribs 30.36 and 30'.

36', a rib 30.3 formed on the cover member 2b
6 has a height dimension t that is the same as the thickness of the cover member 2b, and ribs 30' and 36' formed on the cover member 2a.
is lower than the thickness of the cover member 2a by a dimension (d + α) that is slightly larger than the wire diameter d of the shirt closure spring 20, so that a slit 41 of dimension (d+α) is formed. .

Further, on the rear end surface of the cartridge 1, as shown in FIGS. 8 and 9, holding claws 45.4 of the autochanger are provided.
The held part 4 is an L-shaped recessed part that can be engaged with the held part 4.
6.46 is formed.

Further, as shown in FIG. 10, the notch recess 16 formed on one side edge of the cartridge body 2 is used not only for detecting the A side and the B side of the cartridge 1 as described above, but also for detecting the A side and B side of the cartridge 1 as described above. As shown in Fig. 11, the bar 47 is designed to engage with a positioning bar 47 disposed in the cartridge accommodating portion of the autochanger that automatically loads the cartridge into the information processing device, and is used for positioning within the autochanger. It has become so.

In addition, a cover member 2a constituting the cartridge main body 2,
As shown in FIG. 12, a plurality of concave boss portions 50 that can be press-fitted into each other are provided on the mutually opposing surfaces of the 2b.
and convex boss portions 51... are arranged in appropriate recesses, so that when the double force lever members 2a, 2b are superposed, a gap can be prevented between them. It has become.

Further, the erroneous erasure prevention members 14, 15 for preventing erroneous erasure of recorded data are, as shown in FIGS. 13 and 14, a detection light transmitting window 52.15 formed in the cartridge body 2.
53 is configured to open and close, and writing and erasing cannot be performed in the closed state (the state shown in Fig. 13), and the open state B (the first
Writing and erasing are possible in the state shown in Figure 4).

As shown in FIG. 15, the accidental erasure prevention members 14 and 15 each include a main body 54 formed in a shape that allows detection light transmission windows 52 and 53 to be opened and closed, and a main body 54 that is protruded from one end of the main body 54. A first protrusion 55, a second protrusion 56 protruding from the other end of the main body 54, and a pair of elastic locking tongues 57, 57 protruding from the side of the main body 54. It is integrally molded from synthetic resin material.

When assembled into the cartridge main body 2, the main body portion 54 is located between the ribs 58 and 59 formed on the cover members 2a and 2b, and the first ribs 58 and 59 protrude from both ends. The second projections 55 and 56 are fitted into the detection light transmitting window 52 or 53, which is a long hole, and can be slid in the left and right directions in the figure.

In addition, locking step portions 60.60 of the frame are respectively protruded from the mutually opposing surfaces of the ribs 58, 59, and as shown in FIG. Claw part 5
7a and 57a are the one end portion 608.6 of the locking step portion 60.60.
0a, the tip claws 57a, 57a of the pair of elastic locking tongues 57.57 catch on the other ends 60b, 60b of the locking step 60.60, as shown in FIG. It is now regulated.

Further, an operating body insertion recess 61 is formed in the second protrusion 56, and a switching operation can be performed only by inserting a rod-shaped operating body 62 into this operating body insertion recess 61 and sliding it. This prevents people from working carelessly.

Further, the accidental erasure prevention members 14 and 15 are attached in opposite directions so that the operation body insertion recess 61 is not located on the same side of the cartridge body 2, so that the accidental erasure prevention members 14 and 15 are installed in opposite directions to each other so that the operation body insertion recess 61 is not located on the same side of the cartridge body 2. You can check if it is there.

In addition, this applies to the switching operation of the accidental erasure prevention members 14 and 15! ζ
In this case, the tip claw portion 5 of the pair of elastic locking tongues 57 and 57 is
The completion state of switching can be confirmed by the sound generated when 7a, 57a cross over the locking step portion 60.60.

[Effects of the Invention] As explained above, the present invention includes a cartridge main body that accommodates an information storage medium therein, and a cartridge main body that is slidably incorporated into the cartridge main body and slid into a predetermined position. In a cartridge for an information storage medium having a first erroneous erasure prevention member and a second erroneous erasure prevention member that make it impossible to erase stored information, the thumbtack erasure prevention member is attached to a portion exposed on both sides of the cartridge body. The cartridge body is shaped such that only one side thereof has an operated part, and one operated part is located on each side of the cartridge body, and each of the accidental erasure prevention members is provided with a holding means for holding the switching position. The configuration is as follows. Therefore, it is possible to provide an information storage medium cartridge in which it is possible to easily confirm whether the erroneous erasure prevention member is for the periphery of the surface or for the other surface, and also to clearly confirm that the switching has been completed. to Qin.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the shutter in a closed state, FIG. 2 is a perspective view of the shutter in an open state, FIG. 3 is a vertical side view of the shutter, and FIG. 4 is a perspective view of the shutter in an open state. is the second
Figure 5 is a sectional view taken along the line IV-rV, and Figure 5 is the same as Figure 1 v-v.
6 is a plan view showing how the shirt closure spring is installed, FIG. 7 is a side view, FIG. 8 is a perspective view showing the rear of the cartridge, and FIG. I
10 is a schematic plan view showing a recess formed on one side of the cartridge; FIG. 11 is a schematic perspective view showing the cartridge housed in the autochanger; FIG. 12 is a sectional view taken along line X-IX; 13 and 14 are plan views showing different switching states of the accidental erasure prevention member, and FIG.
The figure is a side view of the erroneous erasure prevention member. DESCRIPTION OF SYMBOLS 1... Cartridge for information storage medium, 2... Cartridge body, 3... Information storage medium (optical disk), 1
4.15... Erroneous erasure prevention member, 52.53... Detection light transmission window, 54... Main body part, 5, 56... Projection part,
57... Holding means (elastic locking tongue), 60... Locking stepped portion, 61... Operated portion (operating body insertion recess), 62.
...Operation body. Applicant's Representative Patent Attorney Takehiko Suzue Figure 3 Figure 4 Figure 6 Figure 8 Figure 9 Figure 11 Figure 12b Figure 12 Figure 13 Figure 14 Figure 15

Claims (3)

[Claims] (1) The first error is a cartridge body that accommodates an information storage medium inside, and a cartridge body that is slidably assembled into the cartridge body and that makes it impossible to erase information stored in the information storage medium by sliding it into a predetermined position. In a cartridge for an information storage medium having an erasure prevention member and a second accidental erasure prevention member, both of the accidental erasure prevention members have a shape in which only one of the parts exposed on both sides of the cartridge body has an operated part. For an information storage medium, the operated parts are arranged one on each side of the cartridge body, and each of the accidental erasure prevention members is provided with a holding means for holding the switching position. cartridge. (2) The cartridge for an information storage medium according to claim 1, wherein the operated portion comprises an operating body insertion recess formed on the end face of the protrusion that fits into the detection light transmission window. (3) Information storage according to claim 1, wherein the holding means is comprised of an elastic locking tongue that can be freely locked and detached from a locking step provided in the movement path of the accidental erasure prevention member. Cartridge for media.