JP2001307457A - Tape cassette - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tape cassette which can easily be fitted at a specific place by forming the crossection of a hold member for holding and fixing a noncontact type memory in a case into a V shape. SOLUTION: The hold member 30 is fitted into the gap between a reel area section wall 25a and the memory member 9 and its flank decreases gradually in width toward the fitting-in side tip part. At the position opposite to the hold member 30 in the inside of an upper case 1, a projection part 19a may be formed which pushes the hold member 30 into the gap when the upper case 1 and a lower case 2 are put together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette containing a tape-like medium wound around a reel in a case and a non-contact type memory member for storing recorded contents and the like in the case. Things.

[0002]

2. Description of the Related Art A magnetic tape cassette or a cassette for a recording medium such as a digital VTR used as an external storage device of a computer or the like has a storage function of recording information and the like in addition to a function of recording and reproducing on a magnetic tape. ,
It is possible to search the tape recorded by the storage function, and use recorded information other than recorded contents.

As the storage function, for example, an IC memory substrate having contact terminals facing a predetermined position in a case is disposed. For example, an IC memory element recording / reproducing apparatus provided in a magnetic tape recording / reproducing apparatus is provided. A terminal is brought into contact with the contact terminal to record on or read recorded information from the IC memory element.

[0004] Regarding the arrangement of the memory member including the IC memory element in the case, there is an arrangement in which the contact terminal of the memory member is exposed on the back of the case disclosed in Japanese Patent Application Laid-Open No. 8-7526, At the corners in the case shown in Japanese Patent No. 238334, there is a memory member that is arranged with a memory member tilted downward and performs recording and reproduction without contacting the memory member. I have.

[0005]

In the above-described conventional tape cassette containing a memory member, a case designed to incorporate the memory member is used from the beginning. However, the tape cassette designed to incorporate the memory member is used. If it is required to incorporate a memory member in a case consisting of an upper case and a lower case that has not been completed, there are restrictions on the location of the memory member in the case and the shape of the memory member. There is a problem that it is difficult to incorporate a memory member without performing the above operation. In order to solve this problem, the shape of the memory member is a substantially triangular prism having a substantially right-angled corner, and a reel area partition wall, a lower case rear side wall, and a reel brake storage section side wall at the center on the rear side of the lower case, Alternatively, a tape cassette has been proposed in which a memory member is held and fixed in a substantially triangular area surrounded by a reel area partition wall, a lower case rear side wall, and a lower case side wall at a rear side corner of the lower case. ing. However, in the tape cassette, the case is not greatly changed. However, when the holding member is, for example, a torsion coil spring, it takes time and effort to mount the holding member, and the holding member includes the memory member and the reel. If the elastic member fits into the gap with the area partition wall, there is a problem that it takes time to fit into the gap.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem. In a tape cassette not designed to incorporate a memory member, the tape cassette retains and fixes the built-in memory member without making a major change to the case. It is an object of the present invention to provide a tape cassette which can easily attach a holding member for performing the operation to a predetermined place.

[0007]

According to the present invention, a tape-shaped medium wound around a rotatable tape reel is housed in a case composed of an upper case and a lower case.
In a tape cassette provided with a non-contact type memory member for storing the recording information of the tape-shaped medium, the shape of the memory member is a substantially triangular prism having a substantially right-angled corner, and a reel is provided on the rear side of the lower case. The memory member is provided in a storage portion outside the area partition wall, and the memory member is held and fixed by a holding member. The holding member is fitted into a gap between the reel area partition wall and the memory member, and is directed toward a fitting-side tip. It has a shape in which the width of the side surface is gradually reduced. Further, a projection may be provided at a position inside the upper case facing the holding member so as to push the holding member into a predetermined position of the gap when the upper case and the lower case are fitted.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing an embodiment of a tape cassette according to the present invention. FIG.
FIG. 2 is a perspective view of a memory member shown in FIG. FIG.
2A and 2B show a lower case of the tape cassette shown in FIG. 1, wherein FIG. 1A is a plan view, FIG.
(C) is a sectional view taken along line BB in (b). FIG.
1A and 1B show a holding member of a memory member according to an embodiment of the present invention. FIG. 1A is a perspective view of a member formed of a plastic plate, and FIG. 1B is a perspective view of a member formed of a plastic film. FIG. 5 is a plan view of the vicinity of the memory member housing portion of the lower case when the memory member is incorporated, showing the embodiment of the tape cassette according to the present invention. FIG.
3A and 3B show an upper case in the embodiment of the tape cassette according to the present invention, in which FIG. 4A is a plan view, and FIG. 4B is an enlarged plan view of the vicinity of a portion opposed to a memory member storage section. FIG.
The lower case shown in FIG.
(A) is an enlarged plan view near the memory member storage part, (b)
FIG. 2 is a sectional view taken along line AA in FIG.

First, a tape cassette according to the embodiment of the present invention shown in FIG. 1 will be described. Upper case 1 and lower case 2
A pair of tape reels 3a and 3b around which a magnetic tape 4 is wound are rotatably housed in a case made of. The magnetic tape 4 has an opening 21 a provided on the front side of the lower case 2.
When the cassette is not used, the magnetic tape 4 outside the case is protected by the front cover 50 and the back cover 60 when the cassette is not used. Front lid 50
Is rotatably attached to the case by a shaft formed on the side plate 51, and is normally urged by the spring 6 in the closing direction. The back cover 60 has a shaft 61 connected to the front cover 50 and a shaft 62 guided by the guide groove 22 of the lower case 2. The back cover 60 moves in conjunction with the front cover 50.

The lower case side wall 24a is provided with a lock member 7 for locking the front lid 50 in the closed position. The lock member 7 is constantly urged to the lock position by a spring 7a. A reel brake member 8 and a memory member 9 are provided near the center outside the reel area on the rear side of the lower case 2, and an erroneous erasure prevention member 10 is provided at a corner.

The non-contact type memory member 9 shown in FIG. 2 has a substantially triangular prism shape in which a portion facing the lower case bottom wall 23 has a right-angled corner. Inside the memory member 9, an antenna portion, a spacer portion, a circuit portion, and a protective layer (all not shown) are formed in this order from the lower surface side.

The memory member 9 is provided in the lower case 2 shown in FIG.
Is stored in a memory member storage part 27 of a substantially triangular area surrounded by a reel area partition wall 25a, a lower case rear side wall 24, and a reel brake storage part side wall 26 forming a reel brake storage part 26a at the center on the back side of the disk. Is done.
The spring storage portion 2 in an area corresponding to the memory member storage portion 27 on the opposite side to the reel brake storage portion 26a.
A reel brake spring 8a is attached to 7a.

Ribs 28 are provided at two locations on the memory member storage section 27 side of the reel area partition wall 25a.
A chamfer 28a is formed on the upper end of the memory member 9 to facilitate the work of storing the memory member 9 in the memory member storage portion 27. In addition, the rib 28 also has a role of preventing misalignment of the memory member 9 from being inserted in the opposite direction. After storing the memory member 9 in the memory member storage portion 27, the holding member 30 is fitted between the two ribs 28. The holding member 30 is detachable.

The holding member 30 shown in FIG. 4 (a) is formed from a plastic plate material, and the holding member 30 shown in FIG. 4 (b) is formed by bending a plastic film. Has an upper surface portion 31. Each of the holding members 30 has a substantially V-shaped side surface shape in which a lower side surface width is narrower than an upper end side surface width. still,
The holding member 30 may have a U-shape or a shape in which a vertical portion is provided in the middle and the side width gradually decreases toward the lower end side in addition to the V-shape as described above. As described above, the holding member 30 has a shape in which the width of the side surface near the lower end portion is gradually reduced toward the lower end portion, so that the holding member 30 can easily be connected to the reel area partition wall 25a and the memory member side surface 9a. At a predetermined position in the gap.

As shown in FIG. 5, the memory member 9 has a right-angled corner of the memory member 9 at the corner formed by the lower case rear side wall 24 and the reel brake housing side wall 26. Are positioned and arranged correspondingly. The holding member 30 is fitted in the gap between the memory member side surface 9a and the reel area partition wall 25a, and the memory member 9 is held and fixed to the memory member storage portion 27.

As the holding member 30, a plastic plate, a plastic film, or a metal can be used. In the case of using a metal, it is preferable to use a non-magnetic material in order to prevent writing into the memory element and reading error of the memory element from occurring. With these holding members 30, the memory member 9 is attached to the lower case rear side wall 2.
4 and is held and fixed by being pressed by a corner formed by the reel brake accommodating portion side wall 26.

As shown in FIG. 6, a wall 19 and a boss 18 are formed in an area 17 corresponding to the memory member storage portion 27 of the lower case 2 on the inner wall of the upper surface of the upper case 1. 19a are formed.

As shown in FIG. 7 (b), when the upper case 1 and the lower case 2 are fitted together, the convex portion 19a is held in the gap between the memory member side surface 9a and the reel area partition wall 25a. The member 30 is reliably pushed into a predetermined position in the gap, and after the tape cassette is assembled, the holding member 30 is prevented from moving toward the upper case.

As shown in FIG. 7B, the end face of the boss 18 is at a distance of 0. A distance of several mm prevents the memory member 9 from moving toward the upper case. If the boss 18 is brought into contact with the memory member 9 in a state where the tape cassette is assembled, the boss 18 and the memory member 9 have a greater hit due to a dimensional error. Since the memory member storage part 27 is separated from the place where the upper case 1 and the lower case 2 are fixed, when the boss 18 strongly contacts the memory member 9, the upper case 1 and the lower case 2
Since a gap is formed on the mating surface with the above, it is preferable not to make contact. It is preferable to use a mold structure in which the end face of the boss 18 is protruded by the protruding pin, because the height of the boss 18 can be easily adjusted.

Further, without providing the convex portion 19a and the boss 18, the end face of the wall 19 is set at 0.
By forming it at a distance of several mm, the holding member 30
The wall 19 can be used as a convex portion for pushing the memory member 9 into the gap, and the wall 19 can be used to prevent the holding member 30 and the memory member 9 from moving to the upper case side.
However, when the wall 19 comes into strong contact with the holding member 30, a gap is formed in the mating surface between the upper case and the lower case in the same manner as described above.
It must be large enough to completely fit in the gap between a and the memory member 9.

A memory brake 9a is mounted on the memory member housing 27, and the memory member 9 is mounted on the spring housing 27a on the opposite side of the reel brake housing 26a or a corner on the rear side of the lower case. In the case where the holding member 30 shown in the above embodiment is used, the wall 19 and the protrusion 19a or the above-mentioned protrusion 19a are formed on the inner wall of the upper surface of the upper case as a protrusion for pushing the holding member 30. A wall 19 that does not need to be provided.

[0022]

According to the present invention, since the holding member is formed in a V-shaped cross section, the upper and lower cases can be assembled in a substantially rectangular shape having a substantially right angle portion in the space with the reel area partition wall outside the reel brake storage portion. The memory member having a triangular prism shape can be held and fixed, and the work of assembling the memory member becomes easy.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an embodiment of a tape cassette according to the present invention.

FIG. 2 is a perspective view of a memory member shown in FIG.

FIG. 3 shows a lower case of the tape cassette shown in FIG. 1,
(A) is a plan view, (b) is an enlarged plan view of a memory member storage portion, and (c) is a cross-sectional view taken along line BB in (b).

4A and 4B show a memory member holding member according to an embodiment of the present invention, wherein FIG. 4A is a perspective view of a member formed of a plastic plate, and FIG. 4B is a perspective view of a member formed of a plastic film.

FIG. 5 is a plan view of the vicinity of the memory member storage portion of the lower case when the memory member is incorporated, showing the embodiment of the tape cassette according to the present invention.

6A and 6B show an upper case in the embodiment of the tape cassette according to the present invention, wherein FIG. 6A is a plan view, and FIG. 6B is an enlarged plan view of the vicinity of a portion opposed to the memory member storage section.

7A and 7B show a state where the memory member is incorporated into the lower case shown in FIG. 6; FIG. 7A is an enlarged plan view showing the vicinity of the memory member housing portion; FIG. 7B is a sectional view taken along line AA in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3a, 3b Tape reel 4 Magnetic tape 6 Spring 7 Lock member 7a Spring 8 Reel brake member 8a Reel brake spring 9 Memory member 9a Memory member side surface 10 Erroneous erasure prevention member 14 Upper case rear side wall 15 Upper case reel Area partition wall 17 Area 18 Boss 19 Wall 19a Convex portion 21a, 21b opening 22 Guide groove 23 Lower case bottom wall 24 Lower case rear side wall 24a Lower case side wall 25a Reel area partition wall 26 Reel brake storage part side wall 26a Reel brake storage part 27 memory member storage portion 27a spring storage portion 28 rib 28a chamfer 30 holding member 31 upper surface portion 50 front cover 51 side plate 60 back cover 61 shaft connected to front cover 62 shaft guided by guide groove

Claims (2)

[Claims] 1. A tape drive for storing a tape-like medium wound around a rotatable tape reel in a case composed of an upper case and a lower case and storing recording information of the tape-like medium. In a tape cassette provided with a non-contact type memory member, the shape of the memory member is a substantially triangular prism shape having a substantially right-angled corner, and the memory member is disposed in a storage portion outside a reel area partition wall on the back side of the lower case, A member is held and fixed by a holding member, wherein the holding member is fitted in a gap between the reel area partition wall and the memory member, and has a shape in which a width of a side surface is gradually reduced toward a fitting-side tip. Tape cassette. 2. A projection which presses the holding member into a predetermined position of the gap when the upper case and the lower case are fitted together at a position inside the upper case opposite to the holding member. 2. The tape cassette according to 1.