JP2511350B2 - Tape cassette - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette,
Especially video tape recorders, audio tape recorders
A tape suitable for magnetic recording / reproducing devices such as recorders and data recorders.
The cassette cassette has a simple structure such as a positioning reference hole into which a magnetic recording / reproducing device position-regulating pin and a tape pull-out member are inserted, a notch, and a magnetic tape, so that they are not exposed to the outside when not in use and have a dustproof effect It is an object of the present invention to provide a tape cassette in which the magnetic tape position accuracy is improved when used.

[0002]

2. Description of the Related Art Generally, a tape cassette mounted and used in a magnetic recording / reproducing apparatus equipped with a tape loading mechanism for pulling out a magnetic tape from a tape cassette and loading it in a predetermined tape path is known. A notch part into which a tape pull-out member on the device side is inserted, a positioning reference hole into which a position regulating pin is inserted, and a front opening part from which a magnetic tape is drawn out, at a position facing the front side on which the magnetic tape runs. Have. A lid is provided to protect the magnetic tape at the front opening, but a notch portion into which the tape pull-out member is inserted, a positioning reference hole into which a position regulating pin is inserted, and a reel shaft. The insertion hole is
It is exposed to the outside even when the tape cassette is not used,
This causes damage to the magnetic tape, intrusion of dust, etc. In order to prevent this, opening / closing mechanisms for the front opening, notch, and reel shaft insertion hole are required. It was necessary to have a complicated mechanism.

[0003]

Such a tape cassette is provided with a dust, etc. through a notch, a positioning reference hole, a reel shaft insertion hole, etc. exposed to the outside during storage and transportation (when not in use). However, there is a problem in that the dustproof effect is insufficient and it is not suitable for increasing the recording density. In addition, recently, with the miniaturization of the tape cassette to increase the recording density of information signals on the magnetic tape, the magnetic tape is in a clean state without dust and the like. Therefore, it is essential that the tape cassette has a high dust-proof effect because it is difficult for dust and the like to enter the inside.

When the tape cassette is housed in the makeup case, the dustproof effect is high and it is very effective. However, when the tape cassette is attached to the recording / reproducing apparatus, the tape cassette is taken out from the makeup case. However, it was troublesome to put it in the makeup case after use, and moreover, both hands were required for this operation, and the usability was not good. According to the present invention, the front opening, the notch, the positioning reference hole, and the reel shaft insertion hole can be closed by a simple structure when not in use, such as during storage or transportation, and can be easily attached to a recording / reproducing device during use. The present invention provides a tape cassette which can be exposed to the outside, can improve the position accuracy of the magnetic tape, is excellent in dustproof property, is less likely to damage the magnetic tape, and has good operability.

[0005]

Therefore, the tape cassette of the present invention according to claim 1 has a supply reel and a winding reel around which a magnetic tape is wound, a front surface of the cassette from the supply reel, and In a tape cassette having a magnetic tape which is guided to a winding reel through a notch for inserting a tape pulling member, a cassette housing is provided so as to protect the cassette housing and the magnetic tape traveling in front. A lid body rotatably provided on the body and a slide body provided slidably with respect to the cassette housing, and in cooperation with the cassette housing, a notch for inserting the tape pull-out member and a positioning reference hole at the first position. And a slide body that exposes the tape pull-out member insertion notch and the positioning reference hole at the second position,
The tape cassette is characterized in that the positioning reference hole is provided only in one of the cassette housing and the sliding body on which the magnetic tape is placed, and not in the other.

According to a second aspect of the tape cassette of the present invention, in the tape cassette of the first aspect, the positioning reference hole is provided on the front bottom surface of the tape cassette and for inserting the tape pulling member. Provided on both sides near the notch,
Further, the tape cassette is characterized in that it has a second positioning reference hole which is not closed by the sliding of the sliding member on the bottom surface behind the tape cassette.

[0007]

EXAMPLE First, FIGS. 1A to 1C, 2A,
An embodiment of the tape cassette according to the present invention will be schematically described with reference to FIG. 1A to 1C show the tape cassette 1 when it is not used, and FIGS. 2A and 2B show the tape cassette 1 when it is used. As shown in FIGS. 1 (A) to 1 (C), a tape cassette 1 includes a substantially box-shaped cassette case 2 and a slide case housed in the cassette case 2 slidably in the direction of arrow X1. It is composed of a moving body 3.

The cassette case 2 is provided in a cassette housing 2A composed of a bottom plate, a top plate, both side plates, and a rear plate, and is provided in the cassette housing 2A so as to be openable and closable, and normally closed to the front of the cassette housing 2A. It is roughly configured by a lid 2B that closes the rectangular opening. The slide body 3 has a supply side magnetic tape winding body 5 and a winding side magnetic tape winding body 6 juxtaposed on a substrate 4, and a tape for guiding a magnetic tape 7 to the left and right sides. This is a structure in which the guide poles 8a and 8b and the tape guide rollers 9a and 9b are provided. The substrate 4 is formed with a notch 10 for fitting the tape pull-out member between the tape guide rollers 9a and 9b.

When not in use, as shown in FIGS. 1 (A) to 1 (C), the sliding body 3 is slid maximally in the direction of arrow X2 (first position) and is completely housed in the cassette case 2. Cage,
The notch 10 and the positioning reference holes 12a and 12b are closed by the bottom plate of the cassette housing 2A. Cassette housing 2
The reel shaft fitting holes 17a, 17b of the bottom plate A and the reel shaft fitting holes 18a, 18b of the substrate 4 are completely deviated from each other, and the reel shaft fitting holes 17a, 17b of the bottom plate are: Board 4
It is blocked by. The lid 2B is closed.
The cassette case 2 is a closed enclosure having no opening when the lid body 2B is closed, dust is effectively prevented from entering the inside, and the magnetic tape 7 is prevented from adhering to the dust. Well protected. That is, the tape cassette 1 has an excellent dustproof property. The tape cassette 1 is shown in FIG.
The magnetic recording / reproducing apparatus is mounted at the operating position in the state shown in FIG. That is, in the mounting process, the lid body 2B is rotated about 90 degrees with respect to the shaft 2Bb and opened, and the sliding body 3 slides in the arrow X1 direction by a predetermined distance in conjunction with the lid opening operation of the lid body 2B (second (Position) Part of the cassette housing 2A is pulled out, and the notch portion 10 and the positioning reference holes 12a and 12b are formed in the cassette case.
Hole 18 for fitting the reel shaft of the substrate 4 exposed to the outside of the substrate 2
a and 18b are holes 17 for inserting the reel shaft of the cassette housing 2A.
It matches with a and 17b. In the tape cassette 1, the positioning reference holes 12a and 12b on the left and right of the substrate 4 are the positioning pins 1.
3a and 13b, and the left and right second positioning reference holes 14a and 14b on the rear surface side of the cassette housing 2A are fitted to the positioning pins 15a and 15b, so that the front surface and the high surface of the tape cassette 1 are connected. Side (rear side), slide body 3 and cassette case
The tape pull-out members 16a and 16b are fitted in the notch 10 so as to face the inside of the magnetic tape 7 between the tape guide rollers 9a and 9b. To do. Thereafter, the tape pull-out members 16a and 16b move to perform a tape-producing operation, the magnetic tape 7 is pulled out and loaded in a predetermined path, and runs along the path to perform magnetic recording / reproduction. Is done. At this time, since the slide body 3 on which the magnetic tape is mounted is directly regulated on the front surface side of the cassette on which the magnetic tape is running and in the vicinity of the entrance / exit of the magnetic tape to the device. Therefore, highly accurate position regulation can be performed regardless of variations in the thickness of the cassette housing 2A.

When the tape cassette 1 is ejected from the recording / reproducing apparatus after recording / reproducing, the lid 2B is closed in the process of ejecting, and the sliding body 3 slides in the direction of arrow X2 in conjunction with this, thereby sliding the cassette. It is housed in the housing 2A (first position), and further has positioning reference holes 12a and 12b and a reel shaft fitting hole 17 therein.
The a and 17b are blocked by the substrate 4 and discharged in a dustproof state. At this time, on the bottom of the cassette housing 2A,
Since no holes are provided at the positions corresponding to the positioning reference holes 12a and 12b, there is no possibility that they will be mischievously blocked. In the above description, the sliding body 3 slides in conjunction with the opening and closing operations of the lid body 2B, but naturally the lid body 2B is opened and closed in conjunction with the sliding operation of the sliding body 3. You may cover it.

Next, the tape cassette 1 having the above structure will be described in more detail with reference to FIG. In each figure, the same reference numerals are given to parts substantially corresponding to the constituent parts shown in FIGS. 1 (A) to 1 (C) and FIGS. 2 (A) and 2 (B). FIGS. 3 to 5 and 8 show the tape cassette 1 when it is not used, and FIGS. 6, 7 and 9 show the tape cassette 1 when it is used.

Of the cassette case 2, a cassette housing 2A
As shown in FIG. 5, the upper half 20 and the lower half 21 are vertically stacked and fixed. Upper half 20
10A and 10B have ribs 20b, 20c and 20d for smoothing the sliding movement of the slide body 3 formed on the lower surface of the top plate 20a having no opening. I am doing it. The lower half 21 has a shape shown in FIGS. 11A, 11B, and 11C, and the bottom plate 21a is provided with notches and positioning reference holes for fitting the tape pulling member. However, only the reel shaft fitting holes 17a and 17b are provided. As will be described later, the holes 17a and 17b are formed at positions closer to the front side than the center so as to be closed by the sliding body 3 when not in use. Further, ribs 21b, 21c and 21d for supporting the sliding body 3 in a smooth slidable state are provided on the upper surface of the bottom plate 21a, and the tape cassette 1 is inserted into the apparatus in the wrong direction on the lower surface. An erroneous insertion preventing groove 21e for limiting the above is formed.

The lower half 21 is also provided with an arm portion 21f extending rearward from the front edge of the bottom plate 21a and guide ribs 21g and 21h protruding from the left and right side walls. As will be described later, these cooperate to guide the sliding of the sliding body 3 and regulate the position of the sliding body 3 in the height direction. Further, on the left and right side walls of the lower harf 21, elongated openings 21i, 21
j is formed adjacent to the guide ribs 21g and 21h at the same height position as these. Above and below halves 20, 21
Is combined with the lid body 2B, and is screwed and fixed at two positions on the left and right on the back side and one position at the center on the front opening 22 side.

As shown in FIGS. 3, 4 and 8, the lid body 2B has shafts 2Ba and 2Bb on both sides which are recessed portions 21 of the lower half 21.
It is fitted in the k and 21l so as to be rotatable in the directions of the arrows A1 and A2, and normally covers the front opening 22 as shown in FIGS. The lid 2B integrally has left and right fan-shaped gears 2Bc and 2Bd. This fan gear 2Bc,
In relation to 2Bd, the upper half 20 is formed with notches 20e and 20f that allow the lid 2B to be opened.

As shown in FIG. 5, the sliding member 3 has the structure shown in FIG.
A reel hub 24 is provided between the substrate (lower slide plate) 4 shown in (A) and the top plate (upper slide plate) 23 shown in FIG.
This is a structure provided with 25 and the like. The substrate 4 and the top plate 23 are assembled by stacking them as shown in FIG. 14, and the claws 4 a to 4 d of the substrate 4 have the hanging ribs 2 of the top plate 23.
3a to 23d are fitted into the openings 23a-1 to 23d-1, and fixed by the hanging ribs 23a to 23d and the like with the vertical separation dimension determined.

Reel shaft fitting holes 18a, 18b, 23e and 23f are formed correspondingly in the base plate 4 and the top plate 23. One reel hub 24 has its upper and lower ends fitted into the annular grooves 4e, 23 of the base plate 4 and top plate 23, and is rotatably provided so as to face the reel shaft fitting holes 18a, 23e. The other reel hub 25 is rotatably provided so that the upper and lower ends thereof are fitted into the annular grooves 4f and 23h of the base plate 4 and the top plate 23 so as to face the reel shaft fitting holes 18b and 23f. There is.
Further, the notches 10 and 2 are provided on the front surfaces of the substrate 4 and the top plate 23.
3i is formed.

Further, in the base plate 4, the fan-shaped gears 2B are formed on the protruding portions 4g and 4h on both sides of the cutout portion 10 as shown in FIG.
The rack 4i shown in FIG. 12 (B) that meshes with c, 2Bd,
4j (a rack 4i that meshes with the sector gears 2Bc, 2Bd,
4j constitutes a transmission member. ), The poles 4k and 4l shown in FIG. 12C, and the hollow columnar tape guide poles 8a and 8b shown in FIG. 12D are formed. This test
The hollow portions of the guide poles 8a and 8b function as positioning reference holes 12a and 12b. Colors 26a and 26b are rotatably provided on the poles 4k and 4l. On the upper surface of the substrate 4, as shown in FIG. 12A, a plurality of ribs 4m extending in the longitudinal direction and the diagonally crossing direction are provided.
Is formed. As shown in FIG. 12 (E), the ribs 4m have a high rib portion 4m-1 with a large protruding height (shown as Nakasatin in FIG. 12 (A)) and a low rib portion 4m-2 with a small protruding height. And consists of.

As shown in FIGS. 3 and 5, cocoon-shaped liners 27 and 28 are fitted on the upper and lower sides of the reel hubs 24 and 25, and the lower liner 28 has a high rib portion 4m-1. And, it is dispersively supported by the break member 29. As shown in FIG. 5, the peripheral edge of the upper liner 27 is an upward curl portion 27a, and the peripheral edge of the lower liner 28 is a downward curl portion 28a. As a result, at the time of recording / playback described later,
The magnetic tape 7 has the upper and lower side edges (width side edges) of the curl portion 27.
Guided by a and 28a, it enters the smooth between the liners 27 and 28, and the tape running becomes stable.

The magnetic tape winding bodies 5 and 6 are formed around the reel hubs 24 and 25, respectively, with their upper and lower sides supported by liners 27 and 28. Also, the brake member 2
As shown in FIGS. 3 and 5, reference numeral 9 denotes a resin forming member including a rod-shaped member 29a and V-shaped arm portions 29b and 29c on both end sides thereof, which is placed on the low rib portion 4m-2. In the flat space 33 between this and the liner 28, the V-shaped arm 29
b and 29c are installed so as to face the reel hubs 24 and 25, respectively. Lock members 30a and 30b are attached to the left and right sides of the board 4.

Next, the tape cassette 1 having the above-mentioned structure is shown in FIG.
It will be described with reference to FIGS. When not in use, the lid 2B is closed and the front opening 2
2 is closed, and the slide body 3 is located at the innermost portion (storage position, first position) of the cassette housing 2A.
It is completely housed inside. The notch portion 10 and the positioning reference holes 12a and 12b are covered with a non-notch portion on the front side of the bottom plate 21a of the lower half 21. The reel shaft fitting holes 18a and 18b of the base plate 4 are provided on the bottom plate 21a of the lower harp 21.
The reel shaft fitting holes 17a and 17b are in a state of being offset toward the inner side of the cassette housing 2A and completely dislocated, and the holes 17a and 17b are closed by the substrate 4. Furthermore, an annular dustproof member 31 is provided around the holes 17a and 17b.
a and 31b are provided. Furthermore, the elongated opening 21
i and 21j are claw portions 30a- of the lock members 30a and 30b.
It is blocked by 1, 30b-1.

As a result, the tape cassette 1 has dust entering through the front opening 22 and entering through the notch 10, the positioning reference holes 12a and 12b, and the reel shaft fitting holes 17a and 17b, and is elongated. A dustproof structure in which the invasion of dust through the openings 21i and 21j is sufficiently limited, and the magnetic tape 7 is sufficiently protected from dust mischief and the like. Further, the claw portions 30a-1 and 30b-1 are engaged with the elongated openings 21i and 21j, and the sliding body 3 is locked so as not to be slidable with respect to the cassette case 2. As shown in FIG. 8, fan-shaped gears 2Bc and 2Bd of a lid body 2B mesh with racks 4i and 4j of a base plate 4 of the sliding body 3, and the lid body 2B is also indirectly locked in the closed position. . Therefore, there is no inconvenience that the lid 2B is unnecessarily opened during handling and the dustproof property is deteriorated.

Furthermore, the reel hubs 24, 25 are
The arm portions 29b and 29c of the key member 29 are pressed and both braked. Furthermore, the sliding body 3 is locked on the left and right sides of the substrate 4 by the guide ribs 21g and 21h, and the rattling in the height direction within the cassette case 2 is also restricted. In addition, the protrusions 20g, 21 of the upper and lower halves 20, 21
m are butted to form a pole 32. This pole 32 serves as a fence for restricting entry of the magnetic tape 7 along the front surface of the cutout 10 into the cutout 10 even when the magnetic tape 7 is loosened, and in terms of strength of the cassette case 2. The tape cassette 1 that functions as a reinforcing pillar that reinforces the weak front opening 22 side so as not to be crushed is inserted into the cassette holder (both not shown) of the magnetic recording / reproducing apparatus with the lid body 2B as the front surface. It moves with it and reaches the cassette mounting position and is mounted. In the process of moving to the cassette mounting position, first, as shown in FIG. 6, the unlocking members 34a and 34b on the apparatus side are provided with the elongated openings 21i and 21i of the cassette case 2.
Enter into 21j. Thereby, the lock members 30a,
30b is elastically deformed, and the claw portions 30a-1 and 30b-1 are opened 2
After sliding out of 1i and 21j, the sliding body 3 is unlocked with respect to the cassette case 2, and the lid body 2B is also indirectly unlocked so that the lid can be opened. Then, the lid body 2B is rotated by about 90 degrees in the direction of arrow A1 by the lid opening mechanism (not shown) to open as shown in FIG.

When the lid body 2B is rotated in the opening direction, as shown in FIG. 9, the fan gears 2Bc, 2Bd, the racks 4i, 4j.
Through the (transmission member), the sliding body 3 is moved to the left and right sides by the arrow X.
It is driven in one direction to move to the second position in the same direction with respect to the cassette case 2. That is, the sliding body 3 is the lid 2B.
A predetermined stroke L in the direction of arrow X1
It slides out of the opening 22 whose front part is open. The sliding body 3 is driven on both the left and right sides and is guided by the ribs 21g and 21h on both the left and right ends of the substrate 4 while the rib 21b is guided.
-21d, the sliding body 3 slides smoothly.
In this embodiment, the sliding body 3 is slid in association with the opening operation of the lid body 2B, but conversely, the sliding operation of the sliding body 3 can open the lid body 2B.

As a result, in the tape cassette 1, as shown in FIGS. 6 and 7, a part of the sliding member 3 is the cassette housing 2.
It is pulled out from A, the notches 10 and 23i and the positioning reference holes 12a and 12b are exposed, and the reel shaft fitting holes 18a and 18b are respectively the reel shaft fitting holes 17a and 17b.
It will be exposed in agreement with. In this state, the tape cassette 1 reaches the mounting position, and the positioning reference hole 1 of the sliding body 3
2a and 12b are fitted to the positioning pins 13a and 13b,
In addition, the second positioning reference hole 14a of the cassette housing 2A,
14b is fitted to the positioning pins 15a and 15b,
The cassettes 1 are mounted on the front and rear sides of the cassette 1 with their positions being regulated in the horizontal and vertical direction arrows X1 and X2. At this time, since the position of the sliding body 3 on which the magnetic tape 7 is placed is directly regulated on the front side of the tape cassette 1 on the apparatus side and in the vicinity of the entrance / exit of the apparatus, highly accurate positional regulation should be performed. You can The reel hubs 24 and 25 are released through the matched holes 17a, 18a and 17b, 18b.
Reel shaft 35 that relatively enters into the hubs 24 and 25.
It fits with a and 35b, and has a tape in the notches 10 and 23i.
The pull-out members 16a and 16b relatively enter. In addition,
The sliding body 3 guides the guide ribs 21g and 21h at three positions on the substrate 4.
Also, it is locked by the arm portion 21f and regulated in the height direction with respect to the cassette housing 2A. Further, in relation to the sliding of the sliding body 3, as shown in FIG. 6, in the brake member 29, the rod-shaped portion 29a is locked at the center by the arm portion 21f, and the left and right sides of this portion are the high ribs 4m-1. Is elastically curved by being locked by the locking projections 4n and 4o integrated with the arm 29.
b and 29c are separated from the reel hubs 24 and 25. As a result, the braking of the reel hubs 24 and 25 is released.

In this state, as described above, the tape drawing members 16a and 16b perform the tape-prodging operation, and then the magnetic recording / reproducing is performed. The tape winding bodies 5 and 6 are formed while being slid on the upper and lower liners 27 and 28 while being stably rotated, and being supported on the lower liner 28. Further, during the process in which the tape cassette 1 is ejected from the recording / reproducing apparatus, the lid body 2B pivots in the direction of arrow A2 and closes, and the sliding body 3 interlocks with this and moves from the first position to the second position. It slides in the A2 direction and is completely stored in the cassette housing 2A. At the time of this discharge, similarly to the above, the sliding body 3 first slides and the lid 2B can be rotated in conjunction with the movement to close the lid. The tape cassette 1 is ejected from the cassette holder in the original state shown in FIGS. The break member 29 is bent as shown in FIG.
Also acts to push the sliding body 3 back into the cassette housing 2A, so that the sliding movement of the sliding body 3 becomes smooth.

[0026]

As described above, according to the tape cassette of the present invention, the notch for inserting the tape pull-out member , the positioning reference hole and the magnetic tape are exposed to the outside when the tape cassette is not used for storage or transportation. However, since it is completely sealed in the cassette housing, dust enters the notch, the positioning reference hole, and the magnetic tape, and further, the dust enters the cassette through the notch and the positioning reference hole. Is surely restricted from entering, and it is possible to effectively prevent external dust and the like from adhering to the stored magnetic tape, and it has excellent dust resistance and refuses to attach dust, for example, high density recording. This is the most suitable cassette for a reproducing device, and it is possible to prevent the notch and the positioning reference hole from being blocked by mischief or the like. At the time of use , either the lid or the sliding body can be attached depending on the mounting on the recording / reproducing device.
In conjunction with one of the operation to move the other by notch tape drawing member <br/> insert, the positioning reference hole and a magnetic tape cassette
The structure is simple because it is automatically exposed to the outside.
The slide body moving mechanism or the lid opening mechanism on the recording / reproducing apparatus side
Either of them can be unnecessary. The cassette front side of the magnetic tape is traveling, because of the and <br/> position regulated by the inlet vicinity output to the recording and reproducing apparatus, having the features of the like can be performed with high accuracy positional regulation.

[Brief description of drawings]

1A is a plan view schematically showing a tape cassette according to an embodiment of the present invention when not in use, FIG. 1B is a side view, and FIG. 1C is an IC in FIG. 1A. -A sectional view taken along the line IC.

2 (A) is a plan view schematically showing a state when the tape cassette of FIG. 1 is used, and FIG. 2 (B) is IIB-II in FIG. 2 (A).
It is a cross-sectional arrow view which follows the B line.

FIG. 3 is a plan view showing a non-use state of an embodiment of the tape cassette of the present invention with the upper half and the top plate omitted.

FIG. 4 is a partially enlarged plan view of FIG.

5 is a cross-sectional arrow view taken along the line VV in FIG.

FIG. 6 is a plan view showing a state when the tape cassette of FIG. 3 is used.

FIG. 7 is a sectional view taken along line VII-VII in FIG.

8 is a view showing the relationship between the fan-shaped gear of the lid and the rack in FIG.
FIG. 8 is a sectional view taken along the line VIII-VIII.

FIG. 9 is a view corresponding to FIG. 8 when the tape cassette is used.

10A and 10B are a plan view and a side view of the upper half of the housing.

FIG. 11A is a plan view of the lower half of the housing, and FIG.
FIG. 11A shows the shape of each part of the lower half, respectively.
It is a cross-sectional arrow view along the middle XIB-XIB line and the XIC-XIC line.

FIG. 12A is a plan view of a substrate of a sliding body, and FIG.
(C), (D), and (E) respectively show the shape of each part of the substrate. In FIG. 12 (A), XIIB-XIIB line, XIIC-XIIIC line,
It is a cross-sectional arrow view taken along the XIID-XIID line and the XIIE-XIIE line.

FIG. 13 is a plan view of a top plate of the sliding body.

FIG. 14 is an elevational view showing a base plate and a top plate of the sliding body so as to face each other.

[Explanation of symbols]

1 ... Tape cassette, 2 ... Cassette case
2A ... cassette housing, 2B ... lid,
2Ba, 2Bb ... axis, 2Bc, 2Bd ...
Fan-shaped gear, 3 ... Sliding body, 4 ... Substrate, 4i, 4j ... Rack, 5 ... Supply side magnetic tape winding body, 6 ... Winding side magnetic tape winding body,
7 ... Magnetic tape, 8a, 8b ... Tape guide pole,
9a, 9b ... Tape guide rollers, 10 ... Notches,
12a, 12b ... Positioning reference holes, 1
3a, 13b, 15a, 15b ... Positioning pins (position regulating pins) 14a, 14b ... Second positioning reference holes 16a, 16b ... Tape lead-out members, 17a, 17b ...
Hole for inserting reel shaft of case, (hole for inserting reel shaft of case)
18a, 18b ... Hole for inserting reel shaft of substrate, (hole for inserting reel shaft of substrate) 20 ... Upper half, 21 ... Lower half, 21a ... Bottom plate, 22 ... Front opening, 23 ... Top plate (upper slide plate), 24, 25 ... reel hub, 35a, 3
5b ... reel shaft,

Claims (2)

(57) [Claims] 1. A cassette comprising a supply reel and a take-up reel wound with a magnetic tape, and a magnetic tape which is guided from the supply reel to the take-up reel through a front face of the cassette and a notch for inserting a tape pulling member. A housing,
A lid rotatably provided on the cassette housing so as to protect the magnetic tape traveling on the front surface, and a lid slidably provided on the cassette housing, and in cooperation with the cassette housing, the tape is at the first position. Connected to the slide body that closes the notch for inserting the drawer member and the positioning reference hole and exposes the notch for inserting the tape drawer and the positioning reference hole at the second position, and the lid and the slide body.
It is linked to the operation of either the lid or the sliding body.
The positioning reference hole is located near the tape pull-out member insertion notch, and the magnetic tape is placed on the cassette housing and the sliding body. A tape cassette that is provided only on one side and not on the other side. 2. The positioning reference holes described in claim 1 are provided on the bottom surface in front of the tape cassette and on both sides in the vicinity of the notch for inserting the tape pull-out member, and further on the rear side of the tape cassette. Second that is not blocked by the sliding of the sliding body on the bottom surface
2. The tape cassette according to claim 1, which has a positioning reference hole.