JP3687822B2 - Magnetic tape cartridge - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a magnetic tape cartridge in which electronic parts for storing management information and the like of recorded contents are assembled separately from a recording magnetic tape.
[0002]
[Prior art]
Conventionally, in Japanese Patent Laid-Open No. 63-168889, etc., an electronic component for storing management information of recorded contents is assembled in a cartridge case separately from a magnetic tape for signal recording. 2. Description of the Related Art There is known a magnetic tape cartridge in which management information signals are exchanged between a recording / reproducing apparatus (hardware apparatus) and an electronic component via a contact.
[0003]
[Problems to be solved by the invention]
By the way, this type of magnetic tape cartridge often employs a structure in which a separately prepared electronic component is fitted into a storage space defined at a predetermined position of the cartridge case, so that it is assembled in the cartridge case. There was a risk that the electronic parts would rattle and generate abnormal noise and wear powder. In particular, in a magnetic tape cartridge in which a digital signal is recorded, when such wear powder adheres to the magnetic tape, a recording failure such as a missing recording signal is caused. In addition, if the electronic component is rattled in this way, there is a possibility that a contact failure between the contact terminal of the hardware device and the contact of the electronic component will occur.
[0004]
In addition, in order to prevent the electronic parts from rattling as described above, a special fixing means is provided between the cartridge case and the electronic parts, or the rear end wall of the cartridge case and the partition wall that define the storage space are provided. If the clearance is reduced, the suitability for mounting electronic components and the mounting stability are lowered, and the cost is increased.
Accordingly, an object of the present invention is to solve the above-mentioned problem, and by improving the structure of the storage space for the electronic component to be stored or its dummy component, the electronic component can be easily incorporated and the occurrence of rattling can be suppressed. It is to provide an inexpensive and good magnetic tape cartridge that can be used.
[0005]
[Means for Solving the Problems]
The above object of the present invention is to assemble an electronic component for storing management information etc. of recorded contents of a magnetic tape or a dummy component thereof into a storage space defined by a rear end wall and a partition wall of the cartridge case. In the magnetic tape cartridge, the partition wall is formed such that the height from the bottom surface of the cartridge case of a part facing the substantially central part of the electronic part or the dummy part fitted in the accommodation space is higher than the other part. , the upper end of the portion is tapered guiding the receiving space side forming, from a magnetic tape cartridge the other in part its height is to Rukoto characterized have the upper edge which is inclined gradually lower are formed from the portion Achieved.
[0006]
According to the above configuration, when the electronic component is assembled in the accommodation space, first, the substantially central portion of the electronic component is guided by the leading taper formed at the upper end portion of a part of the partition wall, and the direction of insertion is made. . At this time, since the other part of the partition wall does not interfere with the electronic component, it is easy to orient the electronic component. Therefore, even if an electronic component is inserted obliquely, it is oriented in a part of the partition wall and then inserted into the accommodation space, and when inserted to some extent, is held between the rear end wall of the cartridge case and the partition wall. . Therefore, even if the clearance between the rear end wall of the cartridge case and the partition wall is reduced, the suitability for mounting and the mounting stability do not deteriorate. The same applies to dummy parts.
The other part of the partition wall is preferably formed so as to have an upper end edge that gradually inclines from a part of the partition wall.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is an enlarged exploded perspective view of a main part of a magnetic tape cartridge according to an embodiment of the present invention, FIG. 2 is a plan view of the magnetic tape cartridge shown in FIG. 4 is an external perspective view showing the overall configuration of the tape cartridge, FIG. 4 is an enlarged exploded perspective view of the main part of the present invention as viewed from the arrow A in FIG. 1, and FIG. 5 is an enlarged front view of the main part of the present invention as viewed from the B arrow in FIG. 6 is a cross-sectional view taken along the line CC of FIG.
[0008]
First, an outline of the magnetic tape cartridge M will be described with reference to FIG. The magnetic tape cartridge M contains a magnetic tape (not shown) inside a cartridge case 1 as a resin molded product. The cartridge case 1 has a lower half 2 and an upper half 3, and a management data storage unit 5 for storing management information and the like of the recorded contents of the magnetic tape at one end of the rear end walls 2 a and 3 a thereof. And the erroneous erasure prevention unit 6 are provided adjacent to each other. The erroneous erasure prevention unit 6 is configured by an erroneous erasure prevention piece 20 in which the claw portion 22 is exposed from the opening 21 provided in the rear end wall 3a of the upper half 3.
[0009]
The management data storage unit 5 is provided as necessary, and is not provided when it is not necessary. The magnetic tape cartridge M in the illustrated example constitutes a management data storage unit 5 by assembling an IC board (electronic component) 10 inside the rear end wall of the cartridge case 1.
As shown in FIG. 1, the rear end wall 2 a of the lower half 2 has openings 11 defined by bars 17 for exposing the plurality of contacts 12 of the IC board 10 to the outside, corresponding to the contacts 12. A plurality are provided.
[0010]
When it is not necessary to provide the management data storage unit 5, the IC board 10 is not assembled and a dummy board is assembled, although not shown as an alternative. The dummy board is provided to close the contact exposure opening 11 of the lower half 2 and has almost the same outer shape as the IC board 10. However, since the main purpose of assembling the dummy board is only to close the opening 11, it is possible to use a board that has been reduced to a size corresponding to the back of the opening 11 as necessary.
[0011]
FIGS. 1 and 4 show the management data storage unit 5 enlarged and partially broken for easy understanding. The IC board 10 is provided with a circuit 14 and a contact 12 on a surface portion of a flat board 13 formed in a substantially L shape. In a state where the IC board 10 is fitted in the housing space 15 that is an electronic component assembly position provided along the rear end wall 2a of the lower half 2, the contact 12 is provided in the rear end wall 2a of the lower half 2 11 is exposed. The contact on the hardware device side can be brought into contact with the contact 12 through the opening 11.
[0012]
The accommodation space 15 in which the IC board 10 is accommodated is defined by a rear end wall 2a and a partition wall 16 parallel to the rear end wall. A storage space 28 of the erroneous erasure prevention piece 20 defined by 29 is adjacently provided. Further, the distance S between the opposing rear end wall 2 a and the partition wall 16 is set to be slightly wider than the plate thickness dimension T of the IC board 10.
[0013]
The partition wall 16 is formed in the cartridge width direction with a length substantially corresponding to the length in the longitudinal direction of the installation range of the contact 12 provided on the surface portion of the IC board 10. Further, the partition wall 16 has a height from the bottom surface of the cartridge case of a portion 30 facing the substantially central portion of the IC board 10 fitted in the accommodation space 15 as the height of the rear end wall 2a. The other portion 31 is formed so that the height of the other portion 31 is higher than approximately half of the opening 11, that is, the height of the portion 30 is higher than the height of the other portion 31. Further, a leading taper 32 that is inclined toward the accommodation space 15 is formed at the upper end of the portion 30.
[0014]
When the IC board 10 is assembled in the accommodation space 15, first, the substantially central portion of the IC board 10 is guided by the leading taper 32 formed at the upper end portion of the part 30 of the partition wall 16, and the orientation of the insertion is determined. Is made. At this time, since the other portion 31 of the partition wall 16 does not interfere with the IC board 10, the direction of insertion of the IC board 10 is easy. Therefore, even if the IC board 10 is inserted obliquely, the IC board 10 is oriented in the portion 30 of the partition wall 16 and then inserted into the accommodation space 15. It is held by the wall 16.
[0015]
Therefore, the magnetic tape cartridge M according to this embodiment does not deteriorate the suitability for mounting the IC board 10 or the mounting stability even if the clearance between the rear end wall 2a and the partition wall 16 is reduced. When attached, the IC board 10 does not rattle and no abnormal noise or abrasion powder is generated, and such abrasion powder adheres to the magnetic tape and there is no possibility of causing a recording failure such as a missing recording signal.
Further, since the other portion 31 of the partition wall 16 has a height up to a position substantially higher than half of the opening 11, the contact 12 of the IC board 10 presses and urges the contact terminal (not shown) of the hardware device. In this case, the IC board 10 can be reliably supported against the pressing biasing force of the contact terminals, and there is no possibility of causing poor contact. 1 and 4, the portion 30 is substantially the end of the partition wall 16, but the invention according to the present application is not limited thereto.
[0016]
7 to 9 are an enlarged exploded perspective view of main parts, an enlarged front view of main parts, and a DD sectional view of a magnetic tape cartridge according to another embodiment of the present invention. The magnetic tape cartridge of this embodiment has substantially the same configuration as that of the magnetic tape cartridge M in the above-described embodiment except for the partition wall 18 that defines the accommodation space 15. Reference numerals are assigned and detailed description is omitted.
[0017]
The partition wall 18 is formed in the cartridge width direction with a length substantially equivalent to the length in the longitudinal direction of the installation range of the contact 12 provided on the surface portion of the IC board 10, similarly to the partition wall 16 in the above embodiment. Yes. Further, the partition wall 18 has a height from the bottom surface of the cartridge case of a portion 30 facing the substantially central portion of the IC board 10 fitted in the accommodation space 15 as the height of the rear end wall 2a. The other portion 31 is formed such that the height of the other portion 31 has an upper end edge 34 that is gradually lowered from the portion 30, that is, the height of the portion 30 is higher than the height of the other portion 31. Furthermore, a leading taper 35 that is inclined toward the accommodation space 15 is formed at the upper end of the portion 30.
[0018]
Therefore, the magnetic tape cartridge in the present embodiment is suitable for assembling and mounting stability of the IC board 10 even if the clearance between the rear end wall 2a and the partition wall 18 is reduced, like the magnetic tape cartridge in the above embodiment. Therefore, the IC board 10 does not rattle when assembled in the cartridge case 1 and no abnormal noise or abrasion powder is generated. Such abrasion powder adheres to the magnetic tape and the recording signal is lost. There is no risk of poor recording.
[0019]
Further, the other portion 31 of the partition wall 18 has an upper end edge 34 that is gradually lowered from the portion 30, even if the IC board 10 has a convex warp on the rear end wall 2 a side. Since the IC board 10 is assembled in the accommodation space 15 while being corrected following the upper edge 34, the suitability for assembly does not deteriorate.
In each of the above embodiments, the assembly of the IC board 10 into the accommodation space 15 has been described. However, the use of a dummy board as an alternative to the IC board 10 has the same effect.
[0020]
【The invention's effect】
As described above, according to the magnetic cartridge of the present invention, when the electronic component is assembled in the accommodation space, first, the substantially central portion of the electronic component is caused by the leading taper formed at the upper end portion of a part of the partition wall. Guided and oriented for insertion. At this time, since the other part of the partition wall does not interfere with the electronic component, it is easy to orient the electronic component. Therefore, even if the electronic component is inserted obliquely, it is oriented in a part of the partition wall and then inserted into the accommodation space, and when inserted to some extent, is held between the rear end wall of the cartridge case and the partition wall. . Therefore, even if the clearance between the rear end wall of the cartridge case and the partition wall is reduced, the suitability for mounting and the mounting stability do not deteriorate.
In other words, the electronic components will not rattle when assembled in the cartridge case, and will not generate abnormal noise or wear powder. Such wear powder may adhere to the magnetic tape and cause a recording failure such as missing recording signals. There is no.
Therefore, by improving the structure of the storage space for the electronic component to be stored or the dummy component, it is possible to provide an inexpensive and good magnetic tape cartridge that can easily incorporate the electronic component and suppress the occurrence of rattling.
[Brief description of the drawings]
FIG. 1 is an enlarged exploded perspective view of a main part of a magnetic tape cartridge according to an embodiment of the present invention.
FIG. 2 is a plan view of the magnetic tape cartridge shown in FIG. 1 showing a state in which an electronic component or the like is inserted.
FIG. 3 is an external perspective view showing the overall configuration of the magnetic tape cartridge.
4 is an enlarged exploded perspective view of a main part of the present invention as viewed from the direction of arrow A in FIG.
FIG. 5 is an enlarged front view of a main part of the present invention as viewed from arrow B in FIG. 1;
6 is a cross-sectional view taken along the line CC of FIG.
FIG. 7 is an enlarged exploded perspective view of a main part of a magnetic tape cartridge according to another embodiment of the present invention.
8 is an enlarged front view of a main part of the magnetic tape cartridge shown in FIG.
9 is a cross-sectional view taken along the line DD of FIG.
[Explanation of symbols]
1 Cartridge Case 2 Lower Half 2a Rear End Wall 3 Upper Half 10 IC Board (Electronic Component)
11 Opening 15 Housing space 16 Partition wall 30 Part 31 Other part 32 Leading taper M Magnetic tape cartridge

Claims (1)

In the magnetic tape cartridge in which an electronic component for storing management information of recorded contents of a magnetic tape or the like or a dummy component thereof is assembled in a storage space defined by a rear end wall and a partition wall of the cartridge case, the partition wall Is formed such that the height from the bottom surface of the cartridge case of the part facing the substantially central part of the electronic part or its dummy part fitted in the accommodation space is higher than the other part, and at the upper end part of the part It is tapered guiding the receiving space side is formed and a magnetic tape cartridge the other in part its height is to Rukoto characterized have the upper edge which is inclined gradually lower are formed from the portion.

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