CN1007183B - Aegnetic tape cassette - Google Patents

Abstract

A magnetic tape cartridge having a housing with opposing surfaces and at least one passage extending through the housing having an opening in said surface and forming a cavity, an indicating member movable within each passage and comprising A central positioning portion is positioned within the cavity and two extensions extend therefrom in opposite directions into the opening. The extensions may be actuated selectively through corresponding openings with the point of a pencil or the like to move the positioning portion from one position through a detent in the cavity to another position which can be viewed from the outside and Corresponds to the corresponding working state of the tape cartridge.

Description

The invention relates to a case containing a record carrier such as a magnetic tape, telefilm or magnetic disk.

There are currently many different types of record carriers supplied in cartridge form. A prime example is the magnetic tape used in a tape recorder or video recorder, although diskettes, telefilms, etc. are also available in cassettes. Cassettes are easy to store and easy to record and play, and effectively protect the tape inside.

Users often want to save some special recording content, and many kinds of cassettes are equipped with protection mechanisms that can be activated to prevent accidental erasure or re-recording of the tape in the cassette. In one such conventional protection mechanism, a window in the face of the case has a protective sheet covering the window. When the sheet is broken, a lever in the tape recorder enters the window and stops recording or erasing the signal on the tape. For example, it is possible to prevent a mechanical record button from being pressed or to inhibit the operation of the erase and/or record circuits by having a lever.

Of course, the user may change his mind and want to reuse the tape for new recordings. With conventional cassettes of the type described above, the user typically covers the window with a piece of adhesive tape to prevent the tape recorder lever from entering through the window so that recording and erasing can be performed again. The problem is that the adhesive tape must be replaced frequently because the lever presses against the adhesive tape with a predetermined biasing force which thins the adhesive tape and eventually breaks it. This causes a second problem, the adhesive tape may break during recording and the lever will enter the window and interrupt the recording operation. This is a serious disadvantage if the signal to be recorded is, for example, a special broadcast and will not be replayed.

A second type of cassette has been proposed in which the protective sheet can be removed from the window and subsequently reattached to the window several times. When the user wants to prevent erasure or re-recording, he removes the sheet; when he wants to record, he puts the sheet back on the case. But the flakes are small and contain Easily lost.

Therefore, a third type of tape cartridge has been proposed which includes a protection mechanism against accidental erasure which is settable and resettable and which does not include a detachable part. An example of such a cartridge is disclosed in Japanese Utility Model No. 163086/1983. In such a cartridge, two passages are formed through the cartridge housing. The cavity in the middle part of each channel has two sub-cavities separated by a catch, and a spherical position indicating member is placed in each cavity, which can be adjusted by using an elongated point. The end of the channel is inserted through the aperture to apply pressure to the ball to move from one sub-cavity over the trigger lip to the other sub-cavity. A latch in the channel prevents accidental movement of the ball from one sub-cavity to another. The position of each ball in the corresponding channel can be observed through a window on the housing. This allows the user to see exactly what state the cartridge is in, to select a new state if desired, and also to prevent the tape recorder lever from effectively entering the housing when the balls are in predetermined positions. This anti-accidental erasure mechanism can be set and reset, and the balls cannot be lost.

However, the opening in the housing must be relatively long and relatively small, so the pointed object used must also be slender. This makes it impossible to use commonly used items such as ballpoint pens or mechanical pencils as points. If the depth of the opening is to be reduced, the ball will be relatively large to accommodate the height of the box. However, the ball will occupy a considerable volume in the box, which is disadvantageous because the box housing is substantially filled with the magnetic tape and its shaft.

It is therefore an object of the present invention to provide a record carrier cartridge for holding a magnetic tape or the like which avoids the above-mentioned problems of the prior art.

Another object of the present invention is to provide a plurality of operating conditions and include an easily operable and resettable mechanism for adapting the cartridge to a selected operating condition and giving indications.

Yet another object of the present invention is to provide a record carrier cartridge of the above type with a reset mechanism as described above, which can be actuated by a readily accessible consumer product such as a pen or pencil. .

Yet another object of the present invention is to provide a device of the above type with a structure that can be used An upper half and a lower half manufactured by an injection molding method with a simple forming mold.

A record carrier cartridge of the type according to the invention having at least two operating states comprises a housing having opposing first and second surfaces, the housing also having at least one strip extending through the housing and at its second The first and second openings are respectively opened in the first and second surfaces, and there is a cavity communicating with the first and second openings. The box also contains an indicating member movable in each channel and comprising an intermediate positioning portion and extensions protruding therefrom and received respectively in the first and second openings, the indicating member being movable by means of The first and second extensions are selectively actuated to move within the channel between externally observable first and second positions to indicate first and second operating states, respectively, of the cartridge.

In a first preferred embodiment, the indicating member comprises a central spherical positioning portion and a frustoconical extension connected at its small diameter end to the positioning portion and its large diameter end at the indicator The members extend through the respective openings flush with the respective outer surfaces of the housing in one or the other of the observable positions. In another preferred embodiment, the channel and the indicating member are rectangular in cross-section, so that the upper and lower halves of the box housing can be formed by injection molding with a simple mold.

The above-mentioned object and other objects, features and advantages of the present invention will become more clear from the following detailed description of the preferred embodiments in conjunction with the accompanying drawings, in which similar components are denoted by the same reference numerals.

Figure 1 is a perspective view of a prior art tape cassette;

Fig. 2 is an enlarged partial sectional view taken along line II-II in Fig. 1;

Figure 3 is a perspective view of a record carrier cartridge according to a first embodiment of the invention;

Figure 4 is a plan view of a portion of the lower half of the housing of the box of Figure 3;

Figure 5 is an enlarged partial cross-sectional view of the box of Figure 3 taken along the line V-V in Figure 4;

Figure 6 is a perspective view of an indicating member contained in the box of Figure 3;

Figure 7 is a record carrier cartridge according to a second embodiment of the invention seen along line VII-VII in Figure 9 The enlarged partial cross-sectional view of ;

Figure 8 is an enlarged partial cross-sectional view similar to Figure 7, showing the indicating member in another position;

Figure 9 is a plan view of the lower portion of the housing of the box of Figures 7 and 8;

Figure 10 is an enlarged partial sectional view similar to Figure 7, showing a record carrier cartridge according to a third embodiment of the invention.

Figure 11 is a top view of a portion of the box of Figure 10;

Fig. 12 is a perspective view of an indicating member contained within the case of Figs. 10 and 11 .

Referring to the drawings in detail, and first to Fig. 1, it can be seen that a magnetic tape cassette 1 of the type disclosed in the aforementioned Japanese Utility Model No. 163086/1983 comprises a cassette housing formed by an upper half 2a and a lower half 2b 2. The case 2 accommodates therein a magnetic tape (not shown) as a recording medium. As usual, the casing 2 includes a pair of reel shaft insertion openings 3a, 3b penetrating through the upper and lower halves 2a, 2b.

Boreholes 4 a , 4 a ′ are formed in the upper half 2 a to form upper openings for the two channels 10 , 10 ′ through the housing 2 . It can be seen from FIG. 2 that openings 4b, 4b' are formed on the lower half 2b as the lower openings of the channels 10, 10' respectively. The pair of openings 4a, 4b and 4a', 4b' are arranged opposite to each other along the vertical direction of the housing 2 and placed in the middle of the rear of the housing. The cavity 5 communicates with the openings 4a, 4b of the channel 10, and the cavity 5' communicates with the openings 4a'4b' of the channel 10'. Each cavity 5, 5' is divided into upper and lower sub-cavities 5a, 5b and 5a, 5b' respectively, separated by a catch edge 6, 6' extending inwards to create a constriction in the cavity 5, 5' . Windows 7, 7' are formed on the rear edge surfaces of the upper half 2a and the lower half 2b and communicate with the cavities 5, 5', respectively.

As shown in Figure 2, spherical indicating members 8, 8' are placed in cavities 5, 5' respectively. Since the two indicator members 8, 8' are identical, the following description will only be made with respect to the indicator member 8 in the channel 10, but these descriptions are equally applicable to the indicator member 8' in the channel 10'. The indicating member 8 can be embedded in any one of the sub-cavities 5a, 5b, and is prevented by the catch 6 from accidentally causing movement between the two sub-cavities. The indicating member 8 can be moved from the sub-cavity 56 to the sub-cavity 5a by means of a member such as a pointed object 9 passing through the opening 4b to apply a pressure from the outside. Application of pressure in the upward direction of FIG. 2 will slide the indicator member 8 upwards, moving or bending the wall with the latch 6 outwards and thereby allowing the indicator member 8 to pass the latch 6 into the sub-cavity 5a. The cavity 5 is designed such that its walls are suitable for this purpose. Correspondingly, the indicator member 8 can also be moved back into the sub-cavity 5b by passing the pointed object 9 through the opening 4a and applying pressure in the downward direction in FIG. 2 .

The position of the indicating member 8 in the sub-cavity 5 a or in the sub-cavity 5 b can be predetermined as a position for intercepting the movement of the operating lever L ( FIG. 1 ) of the tape recorder through the window 7 . If the indicating member 8 is on this predetermined position, after the cassette 1 is put into the tape recorder, the lever L is prevented from entering the cassette 1, which prevents erasing and recording.

The prior art cassette 1 shown in Figures 1 and 2 has a distinct advantage over the previously familiar magnetic tape cassette (not shown) having a removable tab. Each indicating member 8, 8' of the cassette 1 is independently movable between two positions and can be viewed from the outside through the window 7, 7'. The user can look in from these windows 7, 7' to observe the indicated working state to determine whether it is in the correct working state, and can change back to the correct working state if necessary. The indicating members 8, 8' can also be used to limit the entry of the lever L of the tape recorder into the cassette 1. Since the indicating member 8, 8' is never removed from the cavity 5, 5', it is impossible to lose it.

However, there is a problem involving the cassette 1 caused by the nature of the indicating member 8, 8' itself. These indicating members 8, 8' are moved between two respective positions by applying pressure thereon using a suitable point 9 through the opening 4a, 4a', 4b, 4b'. It is well known that most users like to use handy things such as ballpoint pens or mechanical pencils or pencils as tools. However, the indicating members 8, 8' are relatively small spheres, so the diameter of the openings 4a, 4a', 4b, 4b' must be relatively smaller to prevent the indicating members 8, 8' from coming out. The apertures 4a, 4a', 4b, 4b' are thus relatively long and small, with the result that a standard ballpoint pen or pencil cannot pass all the way in to access the indicating member 8, 8'. Although a special point can be provided for use, this significantly reduces the ease of use of the cassette 1 .

Of course, the openings 4a, 4a', 4b, 4b' can be made larger and shallower. However, in doing so the cavity would also have to be enlarged, and usually there would only be a relatively small space in the cartridge housing for accommodating the indicating member.

Referring now to Figures 3 to 6, it can be seen that a record carrier cartridge 11 according to the invention which eliminates the problems of the prior art cartridges described above is used to hold a magnetic tape, but it should be understood that the invention can be equally advantageously applied to a variety of On a case containing record carriers of various types, such as magnetic discs and telefilms.

Referring now to FIG. 3, it can be seen that the cassette 11 of the present invention includes a housing 12 consisting of upper and lower halves 12a, 12b having conventional first and second reel shaft insertion openings 3a, 3b. The upper openings 14a, 14a' are provided in the middle of the rear part of the housing 12 in the upper half 12a. It should be noted that the windows 7, 7' in the peripheral wall of the casing 2 of the prior art cartridge 1 are not necessary in the cartridge 11 of the present invention and are therefore not provided, as will be described below.

As shown in Fig. 5, the housing 12 of the cartridge 11 is provided with channels 13, 13' in which indicating members 17, 17' are respectively placed. Since the channels 13, 13' are identical, the following description will only be made for the indicating member 17 in the channel 13, it should be understood that the descriptions are also applicable to the indicating member 17' in the channel 13'.

The channel 13, similar to the channel 10 of the cartridge 1 of the prior art, comprises a cavity 15 with first and second sub-cavities 15a, 15b separated by a lip 16. Opening 14a and a corresponding lower opening 14b in housing lower half 12b communicate with cavity 15 . The lower openings 14b, 14b' are also shown in FIG. 4 .

It can be clearly seen from FIG. 6 that the indicating member 17 includes a central positioning portion 18 from which two extending portions 20a, 20b protrude in opposite directions. In the first embodiment described here, the positioning portion 18 is substantially spherical, whereas each extension 20a, 20b is frustoconical in shape and is connected to the positioning portion 18 at its relatively smaller diameter end 19a. Each larger diameter end portion 19b terminates with a flat surface 19c. As shown in Fig. 5, the indicating member 17 is placed in the channel 13, and the extensions 20a, 20b are accommodated in the openings 14a, 14b, respectively. In the position shown in Figure 5, the positioning portion 18 of the indicating member 17 is in the second sub-cavity 15b, the second The two extensions 20b are received within the aperture 14b such that their terminating planar surfaces 19c are substantially flush with the outer surface 12b' of the lower half 12b. The second extension can be actuated by applying pressure to the surface 19c of the second extension 20b through the opening 14b with some external tool, and the driving positioning portion 18 moves upward as seen in FIG. In a sub-cavity 15a. Such pressure is easily applied to the second extension 20b because its terminating flat surface 19c is flush with and immediately accessible on the outer surface 12b' of the housing 12, so it can be used with a Use a ballpoint pen or pencil to apply the desired pressure. This provides a distinct advantage over the box 1 of Figure 1, for which it is not possible to apply pressure to move the indicating member 8 from one position to another with these common and easily accessible items. Location.

It can be seen that after the second extension 20b is activated to move the indicating member 17 to its upper position with its positioning portion 18 located in the first sub-cavity 15a, the terminating flat surface 19c of its first extension 20a is substantially It is flush with the outer surface 12a' of the upper half 12a. The fact that these positions of the indicator member 17 can be detected from the outside through the openings 14b, 14b' serves two purposes. The user can observe the box 11 from a specific direction, for example, from the lower half 12b, and observe whether one of the lower openings 14b, 14b' is blocked, both are blocked, or both are not blocked. , That is, whether the flat surface 19c of the extension part 20b, 20b' is flush with the outer surface 12b' of the lower half 12b, so that the user can determine the working state of the box 11. As mentioned above, one working state of the cartridge 11 may be a state in which the magnetic tape contained in the casing 12 is used for recording signals, and a second working state may be a state in which recording signals are prevented. By observing the positions of the indicating members 17, 17', the user can easily determine which working state is being indicated. If desired, he can appropriately actuate one or more members 17, 17' to select other working states.

In addition, if the cartridge 11 is used to have a sensor lever (similar to the sensor lever L in FIG. The position of the predetermined indicator member blocks or allows the control or sensing lever to enter the box 11, respectively. Therefore, the positions of the indicating members 17, 17' have a dual purpose, that is, to indicate the working status of the cassette 11 to the user and to the record/playback device using it.

The cartridge 11 may be of a type in which the operating state of the cartridge 11 is determined only in one direction. For example the record carrier can only be recorded on one side, so the cartridge 11 must be inserted into the recording/playback device in a specific orientation.

In this case, only one indicator member 17 is required to indicate during communication, for example, the indicator member 17 allows the extension 20b to be flush with the surface 12b' and the extension 20a to be retracted into the opening 14a. A signal is recorded, and no signal is allowed to be recorded at another position where the extension 20a is flush with the surface 12a'.

In the case where the record carrier can record signals on both sides - such as the magnetic tape in a conventional cassette, two indicating members 17, 17' are required to indicate whether the first track and the second track on the magnetic tape are allowed, respectively. Record the signal on the track. For example, the indicator members 17 and 17' may be placed in the position shown in FIG. 5 to indicate that the first track of the magnetic tape contained in the cassette housing 12 permits the recording of signals while the second track does not allow the recording of signals. When the case half 12a of the box 11 is put into the record/playback device facing up to record or play on the first track, the state of the extension 20a of the member 17 being retracted into the opening 14a is detected by a suitable sensing lever. (not shown) is detected, allowing recording in the first track of the tape. But when the box 11 is turned over, that is, the housing half 12b is inserted into the record/playback device upwards to record and play on the second track, the sensing lever detects that the extension 20b' is flush with the surface 12b', so that it does not Allows recording on the second track. Thus, two indication members 17, 17' may represent four operating states, it is clear that more states can be indicated by providing suitable additional indication members similar to members 17 and 17'. These additional indicating means may indicate properties of the record carrier, such as the material forming the magnetic coating of the tape, and/or the equalization or other properties of the tape when recorded.

As can be clearly seen in Figures 4 and 5, grooves or slots 15c extend outwardly from and between the cavities 15, 15'. The groove or groove 15c has a predetermined height from the inner surface where the upper half 12a of the housing contacts the lower half 12b. These slots 15c allow the elastic deformation of the partition walls forming the cavities 15, 15', allowing the positioning portions 18, 18' to pass through the detents 16, 16'. When either positioning portion 18, 18' moves past the latch 16, 16' into a new position, the user There will be a distinct sense of release, and the user will sensibly confirm that the display state of the box 11 has changed.

The record carrier cartridge 21 of the second preferred embodiment of the present invention shown in FIGS. 7 to 9 comprises a split into upper and lower halves 22a, 22b, with two extending therethrough and each having a corresponding The housing 22 of the channel 23, 23' in which the indicating member 27, 27' moves. Since the two channels 23, 23' are identical, so are the indicating members 27, 27', only the indicating member 27 inside the channel 23 will be described. The channel 23 is defined by upper and lower openings 24a, 24b in the upper and lower halves 22a, 22b, respectively, with a connecting cavity dividing it into two sub-cavities 25a, 25b. The axis of that part of the channel 23 formed by the opening 24a and the sub-cavity 25a in the upper half 22a is along a vertical line relative to the axis of the part of the channel 23 formed by the opening 24b and the sub-cavity 25b in the lower half 22b. Displaced or offset in the direction of the rear of the peripheral wall 22 c of the cartridge case 22 . In addition, as shown in FIG. 9, the upper openings 24a, 24a' of the upper half 22a are displaced relative to each other by a predetermined distance in a direction perpendicular to the rear of the peripheral wall 22c of the cartridge case 22, while in FIG. The lower openings 25b, 25b' indicated by dotted lines are displaced in the opposite direction by the same predetermined distance to align laterally with the openings 24a, 24a', respectively. This creates symmetry between the upper and lower halves 22a, 22b, allowing the box 21 to indicate its operational status on either face. Again, this enables the cartridge 21 to be inserted into the tape recorder in two ways. In this embodiment, a lip-like structure is provided between the sub-cavities 25a, 25b by the shoulders 26a, 26b of the oppositely offset sub-cavities 25a, 25b. In this way, it is much easier to form the equivalent of the raised lip 16 shown in FIG. 5 on the two halves 22a, 22b.

Each indicating member 27, 27' used in this embodiment is similar to the indicating member 17, 17' of the first embodiment, having a spherical central positioning portion 28 and two frusto-conical extensions 20a, 20b. The lateral distance between the shoulders 26a, 26b must of course be slightly smaller than the diameter of the positioning portion 28 to prevent the member 28 from accidentally moving from one position in one sub-cavity 25a, 25b to the other without actuation. Position in another sub-cavity. extension 20a, The terminating surfaces 29a, 29b of 20b are substantially flush with the outer surfaces 22a', 22b' of the upper and lower halves 22a, 22b, respectively, respectively, when the indicating member 27 is in the corresponding position. As can be seen from Fig. 7 and Fig. 8, which respectively show the indicating member 27 in its two positions, in the process of moving the indicating member 27 from one position to another, a lateral movement also occurs while the vertical movement to move. To accommodate this slight lateral movement, the diameter of the openings 24a, 24b is made slightly larger than the diameter of the large ends of the frustoconical extensions 20a, 20b as shown.

As in the first embodiment, a plurality of grooves or slots 22c extend outwardly from and between the cavities 25, 25' such that the partition walls forming the cavities 25, 25' are elastically deformable and allow the positioning portion 28 to pass over the shoulder 26a , 26b.

A record carrier 31 according to a third preferred embodiment of the invention shown in Figures 10 to 12 comprises a housing 32 consisting of upper and lower halves 32a, 32b, with a strip extending therethrough and receiving two A single channel 33 of an indicating member 37, 37'. In this embodiment, the channel 33 is rectangular in cross-section (see FIG. 11 ), and each indicator member 37, 37' is also substantially rectangular in cross-section (FIG. 12). The indicating members 37, 37' are arranged side by side in the channel 33 and are slidable relative to each other. The openings 34a, 34b and the cavity 35 form a continuous passage 33 through the housing 32 . The cavity 35 is divided into two sub-cavities 35a, 35b by two positioning recesses 36a, 36b in its wall surface for respectively defining two positions of each indicating member 37, 37'. Each indicating member 37, 37' has a central positioning portion 38, 38' and first and second extensions 30a, 30b or 30a', 30b' receivable within apertures 34a, 34b, respectively. The terminating surfaces 39a, 39b of the extensions 30a, 30b or 30a', 30b' follow substantially correspondingly the outer surfaces of the upper and lower halves 32a, 32b when the indicating member 37, 37' is in the corresponding position 32a', 32b' are flush. Each locating portion 38, 38' includes two first and second locating recesses 36a, 36b which are selectively matable with the channel wall surface when the indicating member 37, 37' is in the first position and the second position, respectively. The position of engagement defines portions 38a, 38b. In this way, positioning recesses 36a, 36b act as catches to prevent inadvertent movement of indicator members 37, 37' from one position to another.

When the indicator member 37, 37' is moved from one position to another, a partition wall forming the cavity 35 can be elastically deformed or bendable by, for example, providing a groove or groove (not shown), so that the positioning portion 38 , 38' can pass through. Therefore, the user will have a sense of relief when the indicating member 37, 37' moves into a new position, perceptually confirming the change of indicating state.

The third embodiment has additional advantages. First, the positioning recesses 36a, 36b can be relatively shallow so that the extensions 30a, 30b or 30a', 30b' need only be depressed a small distance to move the indicating member 37, 37' to a new position. Second, like the embodiment of FIGS. 7 to 9, there is no need to mold a protruding lip onto the wall surface forming the channel 33, so the halves 32a, 32b can be injection molded using a structurally simple molding tool. method produced. Finally, the indicator members 37, 37' and the channel 33 that slideably accommodates the two indicator members can be made small (see FIG. 11), which reduces the space required to accommodate them in the housing 2.

According to the invention, a cartridge for a magnetic tape or other record carrier having at least two operating states includes a convenient and easily operable means for indicating which operating state the cartridge is currently in. The indicating member in the passage can be moved from one position to another according to the user's wishes, and return again, so the working state can be freely selected. The indicating member always remains inside the case and thus cannot be lost. The extension of each indicating member terminates in a planar surface which may be selectively adjacent and preferably flush with a corresponding outer surface of the casing of the case so that they can be easily read with a ballpoint pen or pencil or the like. The commonly available tools can be reached and actuated.

After describing the specific embodiment of the present invention in conjunction with accompanying drawing, it should be understood that the present invention is not limited to those specific embodiments, and those skilled in the art will not depart from the scope or spirit of the present invention defined in the claims Various modifications and improvements can be made within.

Claims (15)

1; a kind of record carrier box with at least two kinds of different operating states contains one and has first and second relative surperficial housing; this housing comprises a pair of running through on it; opening and the interior record carrier that is wound on the tep reel of adorning are inserted in the tep reel rotating shaft of Lower Half; it is at least one that stretch to connect this housing and have first and second perforate in its first and second surface that this housing also has; and there is cave, a chamber to be communicated with the passage of first and second perforate; this cave, chamber is by a fate one-tenth cave, branch chamber up and down of pulling that is located at the latter half circle position on the housing; indicating member is placed in the cave, corresponding minute chamber and also can actuates and move between cave, two fens chambeies by impressed pressure with indication corresponding work state; constitute the protection mechanism that prevents maloperation simultaneously; it is characterized in that described indicating member includes a middle part localization part, and have two extensions to stretch out in the opposite direction from it and can be contained in respectively in described first and second perforate.

2, press the record carrier box of claim 1, it is characterized in that described indicating member described first and second extension each be terminated at a plane surface, the described plane surface of this first extension follows the described first surface of described housing to flush when described indicating member is in described primary importance basically, and the described plane surface of this second extension follows the described second surface of this housing to flush when this indicating member is in the described second place basically.

3, press the record carrier box of claim 1, it is characterized in that described first extension can exert pressure and be actuated by pass described first perforate towards the direction of the described second surface of described housing thereon, described second extension can be exerted pressure thereon and is actuated by pass described second perforate towards the direction of the described first surface of this housing.

4, by the record carrier box of claim 1, it is characterized in that described record carrier is a tape.

5, by the record carrier box of claim 1, it is characterized in that described first duty be can be on described record carrier the state of tracer signal, described second duty is the state that prevents that such record from realizing.

6, press the record carrier box of claim 1, it is characterized in that also containing that at least one is foregoing, have the second channel that a corresponding indicating member moves within it, each described indicating member can move independently of each other and indicate corresponding additional work state.

7,, it is characterized in that also containing many grooves that stretch from described passage so that this passage can elastic deformation by the record carrier box of claim 1.

8, press the record carrier box of claim 1, it is characterized in that described first extension is contained in makes it can pass this first perforate when described indicating member is in described primary importance to actuate from the outside in described first perforate, described second extension is contained in and makes it can pass this second perforate in described second perforate when this indicating member is in the described second place to actuate from the outside.

9, press the record carrier box of claim 1, it is characterized in that cave, described chamber includes is used for holding in described first and second position respectively the cave, first and second minute chamber of described localization part, and is located between the cave, chamber of described first and second minute in order to prevent that this localization part is at the mobile edge device of pulling that meets accident under the situation that described first and second extension neither one is actuated between this cave, first and second minute chamber.

10, press the record carrier box of claim 9, it is characterized in that it is the xsect of rectangle basically that described passage has one, in its wall surface, have the selectable first and second location dimples, the xsect of described indicating member be basically rectangle and be slidably received within this passage, this indicating member includes selectively respectively the first and second position qualifying parts that the described first and second location dimples couplings with described wall surface engage.

11,, it is characterized in that described localization part is spherical basically by the record carrier box of claim 9.

12,, it is characterized in that described first and second extension is frusto-conical shape and is connected on the localization part of described middle part at the less relatively place, end of its diameter by the record carrier box of claim 11.

13,, it is characterized in that described first and second perforate is columniform and its diameter enough holds the large-diameter end of described truncated conelike extension slidably by the record carrier box of claim 12.

14, press the record carrier box of claim 13, it is characterized in that each cave, chamber of described first and second minute equal by its diameter described localization part diameter cylindrical wall the surface form, this cave, first and second minute chamber is along a preset distance of the mutual axial dipole field of described first and second surperficial direction that is parallel to described housing, and the wall surface that forms this cave, first and second minute chamber can elastic deformation can pass through this localization part between this cave, first and second minute chamber when described extension is actuated.

15, press the record carrier box of claim 13, it is characterized in that middle part annular section that cave, described chamber is substantially equal to the diameter of described localization part by its first diameter and has a diameter reduction constituting the described edge device and limit the surperficial institute shape of the cylindrical wall in cave, chamber of described first and second minute of pulling, described wall surface can elastic deformation makes this localization part can be by this edge device of pulling between cave, described minute chamber when described extension is actuated selectively.

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