JP3480158B2 - Jig for tape cassette assembly - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is useful for assembling a tape cassette constructed such that the rotation of a tape reel rotatably housed in a cassette body is prevented by a brake member biased by a spring. Tape cassette assembly jig.

[0002]

2. Description of the Related Art For example, a video tape recorder (VT)
A tape cassette used as a data storage used as a backup for a magnetic recording / reproducing apparatus such as R) and a computer is formed by winding a magnetic tape rotatably housed in a cassette body composed of a pair of halves. A brake member is provided to prevent rotation of the tape reel.

This brake member is rotatably attached to a support shaft provided in the cassette body, and its tip end is attached to a gear part provided on the base end side of the tape reel by the urging force of a torsion coil spring. The tape reel is engaged to prevent the tape reel from rotating. The brake member is always urged toward the tape reel by a torsion coil spring except during recording / reproduction, so as to prevent the tape reel from rotating.

In order to assemble a tape cassette containing the above-mentioned brake member, first, the brake member is assembled in one half together with the torsion coil spring. Then, the brake member is retracted and held at a position where it does not come into contact with the tape reel against the biasing force of the torsion coil spring. afterwards,
The tape reel around which the magnetic tape is wound is incorporated into the half.

Then, the tip end of the brake member is engaged with the gear portion provided on the base end side of the tape reel by the urging force of the torsion coil spring to prevent the tape reel from rotating. Then, the other half is fixed to the half in which the tape reel is incorporated with a screw or the like.

[0006]

However, when the tape reel is incorporated in the half, it is necessary to retract the brake member against the biasing force of the torsion coil spring, so that one of the workers should install the brake member. Hold and the other needs to incorporate a tape reel. Thus, in the past, when assembling the tape cassette, it was necessary for two workers to incorporate the tape cassette into the half, and the assembling work of the tape cassette was very troublesome.

Therefore, an object of the present invention is to provide a tape cassette assembling jig which can easily incorporate a tape reel into a cassette body and efficiently perform an assembly operation of the tape cassette.

[0008]

According to the present invention, a tape reel wound with a recording medium is rotatably accommodated in a cassette body composed of a pair of halves, and is biased by a spring to the tape reel. A jig for assembling a tape cassette, which accommodates a brake member that engages with a provided gear part and prevents rotation of the tape reel, wherein a recess for fitting and fixing one of the pair of halves is provided. And a base provided on the base, which disengages the gear portion of the tape reel against the biasing force of the spring and retracts the brake member to a position where the brake member does not come into contact with the tape reel. The above object is achieved by providing a tape cassette assembling jig which is provided with a brake member holding means for holding the tape cassette.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the tape cassette of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a tape cassette assembling jig according to the present embodiment, and FIG.
Is a plan view of the tape cassette assembling jig of the present embodiment, FIG. 3A is a sectional view taken along the line AA of FIG. 2, FIG. 3B is a sectional view taken along the line BB of FIG. c) is a sectional view taken along the line CC of FIG.
FIG. 4 is a plan view of the first half in which a brake member is incorporated, FIG. 5 is a plan view of a state in which the brake member is retracted and held by the brake member holding means to a position where it does not contact the tape reel, and FIG. 6 is one brake member. FIG. 7 is an enlarged perspective view of an essential part of a state in which one of the brake members is retracted and held by a holding means in a position where it does not contact the tape reel. FIG. FIG. 9 is a plan view showing a state in which a member is released, FIG. 9 is a perspective view in a state in which a second half is attached, and FIG. 10 is a plan view in a state in which other brake members are released.

As shown in FIG. 1, the tape cassette assembling jig of this embodiment is a tape reel 4 in which a recording medium 3 is wound in a cassette body composed of a pair of halves 1 and 2.
Is rotatably accommodated, and brake members 6 and 7 are energized by a spring to engage with a gear portion 5 provided on the tape reel 4 and prevent rotation of the tape reel 4. It is a jig 8 for assembling a tape cassette.

The tape cassette assembling jig 8 is provided with a base 10 provided with a recess 9 for fitting and fixing one of the pair of halves 1 and 2, and the base 10 provided with the spring. Brake member holding means 11, 12 for releasing the engagement of the tape reel 4 with the gear portion 5 against the force and for retracting and holding the brake members 6, 7 to a position where they do not contact the tape reel 4. I have it.

Jig 8 for assembling the tape cassette of this embodiment
Will be described in more detail. The base 10 is formed of, for example, duralumin or the like as a plate-like body having a substantially rectangular shape in a plan view, and has base feet 13 as legs in four corners thereof. A recess 9 for fitting and fixing one half 2 (hereinafter referred to as the first half 2) in which the brake members 6 and 7 are incorporated is formed on one main surface 10a of the base 10. There is.

The recess 9 has a flat rectangular shape corresponding to the outer shape of the first half 2 and is formed as a dent having a depth of about the plate thickness of the first half 2. When the first half 2 is fitted into the recess 9, the first half 2
The mounting position of is positioned in the front-rear and left-right directions.

Further, on one main surface 10a of the base 10,
Stopper 1 for preventing the erroneous recording prevention member 14 from falling down
5 is fixed. The stopper 15 is fixed to a position facing the erroneous recording prevention member 14 slidably provided on the first half 2 as a rectangular block.

Further, on one main surface 10a of the base 10, a pair of brake member holding means 11 for retracting and holding the pair of brake members 6 and 7 housed in the cassette body at a position where they do not come into contact with the tape reel 4. 12 are provided. Of the brake member holding means 11 and 12, the stopper 1
5, one brake member holding means 1 provided close to
1 (hereinafter, referred to as first brake member holding means 11) is a brake member 6 (hereinafter, referred to as a first brake member holding means 11) provided near one side wall 2a of the first half 2 in which the erroneous recording prevention member 14 is provided. The first brake member 6) is retracted and held at a position where it does not contact the tape reel 4.

The first brake member holding means 11 is shown in FIG.
And as shown in FIG. 3, mainly the first brake member 6
To the tape reel 4 by engaging with the first brake member 6
It comprises a brake member holding rod 16 which is retracted and held at a position where it does not come into contact with the brake member holding rod 16, and a brake member holding rod support member 17 which supports the brake member holding rod 16.

The brake member holding rod 16 is formed as a round bar made of, for example, stainless steel or the like, and the brake holding portion 1 that engages with the first brake member 6 at its tip portion.
Have eight. The brake holding portion 18 is formed as a cylindrical body made of nylon or the like, and is screwed to a male screw portion formed at the tip of the brake member holding rod 16. An engaging groove 19 having a substantially V-shaped cross section that engages with the first brake member 6 is provided on a part of the peripheral surface of the brake holding portion 18.

On the other hand, at the other end of the brake member holding rod 16, there is provided a grip portion 20 which is also formed as a cylindrical body made of nylon or the like. The grip portion 20 has a length such that it can be easily operated by the hand, and like the brake holding portion 18, the grip portion 20 is screwed to a male screw portion formed at the base end of the brake member holding rod 16.

Further, the brake member holding rod 16 is provided with a stopper portion 21 for preventing the brake member holding rod supporting member 17 from coming off and for restricting the stroke of the brake member holding rod 16. The stopper portion 21 includes the brake holding portion 18 and the grip portion 20.
And is formed by forming a thread on the brake member holding rod 16.

Brake member holding rod support member 17
3 serves as a guide for advancing and retracting the brake member holding rod 16 in the direction of arrow A in FIG. 3A, and is fixed to one main surface 10 a of the base 10 by a bolt 22. In this brake member holding rod support member 17,
For example, a rod insertion hole 23 made of duralumin or the like is provided for smoothly moving the brake member holding rod 16 forward and backward. Such rod insertion hole 23
Is formed as a female screw portion that fits with the stopper portion 21 provided on the brake member holding rod 16.

The other brake member holding means 12 (hereinafter,
This is called the second brake member holding means 12. ) Is
The other brake member 7 (hereinafter, referred to as the second brake member 7) provided at a position opposite to the stopper 15 is retracted and held at a position where it does not contact the tape reel 4. Has become.

The second brake member holding means 12 is
As shown in FIGS. 2 and 3B, a brake member holding slide plate 24 that engages with the second brake member 7 and retracts and holds the second brake member 7 at a position where it does not contact the tape reel 4. , This brake member holding slide plate 24
The slide operation rod 30 for sliding the slide plate and the slide plate pedestal 25.

The brake member holding slide plate 24 is formed of, for example, duralumin or the like as a plate member having a substantially rectangular shape in plan view, and is slidable in the direction of arrow B in FIG. Has been done. Into the central portion of the brake member holding slide plate 24, one bolt 26 of a pair of bolts 26, 27 for fixing the slide plate receiving base 25 is inserted from the rear surface 10b side of the base 10, and the bolt 26 is used as a guide. An elongated hole-shaped slide hole 28 for sliding is formed. A nut 38 is attached to the tip of the bolt 26 protruding from the slide hole 28.

Also, the brake member holding slide plate 2
As shown in FIGS. 2 and 3B, a brake member engagement groove 29 that engages with the second brake member 7 is provided at the tip of the brake member 4.
Is provided. The brake member engagement groove 29 is formed on the front end side of the brake member holding slide plate 24 so as to cut out one side edge portion, and the upper end surface 29a of the cutout portion.
The second brake member 7 is pressed down from above and the one side wall 29b prevents the first brake member 6 from returning.

Further, at the rear end of the brake member holding slide plate 24, there is provided a rod mounting portion 31 for mounting a slide operation rod 30 which will be described later. The rod mounting portion 31 is formed with a female screw portion 33 that fits with a male screw portion 32 provided on the slide operation rod 30.

The slide operation rod 30 is formed as a round bar made of, for example, stainless steel or the like, and has a male screw portion 32 which fits with the female screw portion 33 at the tip thereof. At the other end of the slide operation rod 30, a grip portion 34 formed as a cylindrical body made of nylon or the like is provided. The grip portion 34 is also long enough to be easily operated by a hand, and is screwed to a male screw portion formed on the proximal end side of the slide operation rod 30.

This slide operation rod 30 is guided by a slide hole 36 of a slide holding portion 35 provided on the base end side of a slide plate receiving base 25 formed as a substantially rectangular parallelepiped, and at the tip end portion thereof. The male screw portion 32 is fitted to the female screw portion 33 of the brake member holding slide plate 24. The brake member holding slide plate 24 connected to the slide operation rod 30 is provided between the rod mounting portion 31 of the brake member holding slide plate 24 and the slide holding portion 35 of the slide plate receiving base 25. The tip end of the coil spring 37 is always exposed to the inside of the cassette body by the urging force of the coil spring 37. Therefore, in order to pull back the brake member holding slide plate 24, it is necessary to resist the biasing force of the coil spring 37.

Further, on one main surface 10a of the base 10,
Opening / closing lid 39 rotatably attached to the first half 2
An opening / closing lid pressing means 40 is provided for keeping the open state. The opening / closing lid pressing means 40 is shown in FIG.
As shown in FIG. 3C, the opening / closing lid pressing member 41 is formed of, for example, nylon as a columnar body, and the guide member 42 is formed of a bolt or the like screwed to the opening / closing lid pressing member 41.

The guide member 42 is provided in a guide hole 43 formed as an elongated hole in the sliding direction of the brake member holding slide plate 24, and projects from the back surface 10b side of the base 10 to the one main surface 10a side. The opening / closing lid pressing member 41 is fixed to the tip portion. Therefore, the opening / closing lid pressing member 41 is slidable along the guide hole 43 using the guide member 42 as a guide in the direction indicated by the arrow C in FIG. 3C.

Next, a method of assembling a tape cassette using the tape cassette assembling jig configured as described above will be described. Before that, the tape cassette used here will be described.

The tape cassette used here is used for data storage used as a backup of a computer or the like, and as shown in FIG. 1, in a cassette body composed of a first half 2 and a second half 1. In addition, a tape reel 4 around which a recording medium 3 which is a magnetic tape is wound is rotatably housed. This first half 2
As shown in FIGS. 1 and 4, the first brake member 6 and the second brake member 7 are provided in the vehicle.

The first brake member 6 is the tape reel 4
Of the disk-shaped reel flanges 44, 45 provided above and below, respectively, a comb tooth-shaped meshing portion 46 that meshes with the gear portion 5 formed on the outer periphery of the reel flange 45 on the lower end side.
And a brake releasing piece portion 47 with which a brake releasing member provided on the drive side for releasing the engagement between the meshing portion 46 and the gear portion 5 comes into contact. The first brake member 6 is rotatably attached to a support shaft 48 provided on the inner surface of the first half 2, and a torsion coil spring 49 attached to the support shaft 48 constantly engages the meshing portion. 46 is urged in the direction in which it engages with the gear portion 5.

That is, the first brake member 6 is
As shown in FIG. 4, one arm portion 49a of the torsion coil spring 49 is locked to the spring locking piece 50 formed as a plate-shaped piece projectingly provided on the inner surface of the first half 2, and the other one is locked. The arm portion 49b is locked to the base end side portion of the meshing portion 46, so that the meshing portion 46 is always biased in the direction of meshing with the gear portion 5.

On the other hand, like the first brake member 6, the second brake member 7 is composed of a comb-teeth-shaped meshing portion 51 that meshes with the gear portion 5 and a brake releasing piece portion 52, and has a planar shape of approximately L. It is shaped like a letter. The second brake member 7 is rotatably attached to a support shaft 53 provided on the inner surface of the first half 2, and a torsion coil spring 54 attached to the support shaft 53 always keeps the meshing portion 51. It is configured to urge in a direction in which it meshes with the gear portion 5.

That is, the second brake member 7 is
As shown in FIG. 4, one arm portion 54 of the torsion coil spring 54 is attached to a spring locking piece 55 formed as a plate-like piece protruding inwardly on the other side wall 2b of the first half 2.
Since a is locked and the other arm portion 54b is locked to the base end side portion of the meshing portion 51, the meshing portion 51 is always biased in the direction of meshing with the gear portion 5.

Further, the first half 2 is provided with an erroneous recording prevention member 14 for preventing information from being erroneously recorded on the recording medium 3. The erroneous recording prevention member 14 is provided on one side wall 2a of the first half 2 so as to be slidable in a direction indicated by an arrow D in FIG.

Further, the first half 2 is formed with a tape reel positioning protrusion 56 formed as an annular protrusion for positioning the tape reel 4 at the center thereof. Inside the tape reel positioning protrusion 56, a plurality of ribs 57 radially extending toward the center are provided. Further, at the center of the tape reel positioning protrusion 56, a coil spring mounting formed as a cylindrical protrusion for mounting a compression coil spring (not shown) provided between the tape reel positioning protrusion 56 and the tape reel 4 is formed. A member 58 is provided.

Further, the first half 2 is provided with a tape end hook portion 59 for hooking the winding end portion of the recording medium 3 wound around the tape reel 4. As shown in FIG. 4, the tape end hooking portion 59 has a hook-shaped tip portion, and is inserted into a rectangular cutout portion 60 provided at the winding end portion of the recording medium 3 shown in FIG. The recording medium 3 is engaged with the recording medium 3 to prevent the recording medium 3 from being disturbed.

Further, the first half 2 has a rotating shaft 61.
The opening / closing lid 39 is rotatable about the center in the direction of arrow E in FIG.
Is provided. The open / close lid 39 is configured to urge the torsion coil spring 62 to always close the recording medium outlet 63 shown in FIG. That is, in the opening / closing lid 39, one arm portion 62a is locked to the half side wall 2c near the recording medium outlet 63, and the other arm portion (not shown) is locked to the proximal end side of the opening / closing lid 39. By doing so, the recording medium pull-out port 63 is always closed.

Further, in the first half 2, the second
There are four cylindrical half-joining portions 64 each having a female screw formed at the center for joining with the half 1 with a screw. Further, a notch portion 65 for inserting a brake release member provided on the drive side into the cassette body is provided at a position facing the second brake member 7 of the first half 2.

On the other hand, as shown in FIG. 1, the second half 1 is formed with a circular hole 67 for allowing an annular portion 66 protruding from the center of the upper reel flange 44 to face outward. There is. Further, the second half 1 is formed with a cutout hole 68 for inserting a brake release member for releasing the brake state of the first brake member 6 into the cassette body. Further, in the second half 1, a screw hole 6 for attaching a screw for half coupling is provided at a position corresponding to the half coupling portion 64 provided in the first half 2.
9 is provided.

On the other hand, the tape reel 4 has a pair of upper and lower reel flanges 44 and 45, and the recording medium 3 is wound a predetermined number of times around a hub (not shown) provided on the lower reel flange 45. It is like this. The recording medium 3 wound around the tape reel 4 is regulated in the width direction by the upper and lower reel flanges 44 and 45 and is in a good wound state.

To assemble the tape cassette having the above structure, the following steps are carried out. First, on the first half 2, as shown in FIG. 1, the first brake member 6,
The second brake member 7, the opening / closing lid 39 and the erroneous recording prevention member 14 are incorporated. Then, the first half 2 is attached to the base 1
It is fitted in the recess 9 of 0. Then, the second half 1
The position in the front-rear, left-right direction is regulated and fixed to the base 10.

Next, as shown in FIG. 5, the first brake member holding means 11 resists the urging force of the torsion coil spring 49 to move the first brake member 6 against the tape reel 4.
Retract and hold it in a position where it does not come into contact with. That is, after rotating the first brake member 6 in the state shown in FIG. 4 against the biasing force of the torsion coil spring 49, the brake member holding rod 16 is protruded inward of the half and provided at the tip thereof. The first brake member 6 is retracted and held by the brake holding portion 18 at a position where it does not contact the tape reel 4.

At this time, as shown in FIG. 6, the engagement groove 19 having a substantially V-shaped cross section provided in the brake holding portion 18 is engaged with the upper end edge portion 46a of the meshing portion 46. as a result,
The first brake member 6 is pressed by the engagement groove 19 and is not lifted upward, but is reliably retracted and held at a position where it does not come into contact with the tape reel 4.

Next, by the second brake member holding means 12, as shown in FIG. 5, the second brake member 7 is resisted against the biasing force of the torsion coil spring 54, and the tape reel 4 is pressed.
Retract and hold it in a position where it does not come into contact with. That is, after the second brake member 7 in the state shown in FIG. 4 is rotated as shown in FIG. 5 against the biasing force of the torsion coil spring 54,
The brake member holding slide plate 24 is projected inward of the half, and a part of the brake releasing piece portion 52 is engaged with the brake member engaging groove 29 provided at the tip portion thereof. Then, the second brake member 7 is pressed from above by the upper end surface 29a of the engagement groove 29, and the return of the first brake member 6 is prevented by the one side wall 29b of the engagement groove 29.

Next, as shown in FIG. 5, the opening / closing lid holding means 40 resists the biasing force of the torsion coil spring 62 to open the recording medium pull-out port 63, as shown in FIG.
That is, the opening / closing lid 39 is rotated in the direction of opening the recording medium pull-out port 63 against the biasing force of the torsion coil spring 62, and is advanced along the guide hole 43 to the tip end side of the opening / closing lid 39. The opening / closing lid pressing member 41 is brought into contact. Then, the opening / closing lid 39 is pressed by the opening / closing lid pressing member 41.
Will always be opened.

Next, as shown in FIG. 7, the tape reel 4 around which the recording medium 3 shown in FIG. 1 is wound is incorporated in the first half 2 together with the compression coil spring. As a result, the tape reel 4 is positioned with respect to the first half 2 by the tape reel positioning protrusion 56 provided on the inner surface of the first half 2. Further, since the first brake member 6 and the second brake member 7 are both retracted and held at the position where they do not contact the tape reel 4, the work of assembling the tape reel 4 can be easily performed. Next, the notch portion 60 provided at the winding end portion of the recording medium 3 wound around the tape reel 4 is attached to the tape end hook portion 59.
Hang on.

Then, on the contrary, the opening / closing lid pressing member 41 is reversed.
Back along the guide hole 43, and as shown in FIG.
The engagement between the opening / closing lid pressing member 41 and the opening / closing lid 39 is released. As a result, the recording medium pull-out port 63 is closed by the opening / closing cover 39 by the urging force of the torsion coil spring 62.

Next, the lock of the first brake member 6 is released. That is, the brake member holding rod 16 is retracted in the direction away from the half, and the engagement between the brake holding portion 18 provided at the tip end of the brake member holding rod 16 and the first brake member 6 is released, so that the first brake member 6 is released. unlock. As a result, as shown in FIG. 8, the first brake member 6 is rotated by the urging force of the torsion coil spring 49,
The meshing portion 46 meshes with the gear portion 5 provided on the reel flange 45 on the lower end side.

Next, the lock of the second brake member 7 is released. That is, as shown in FIGS. 9 and 10, the brake member holding slide plate 24 is retracted in the direction away from the half against the urging force of the compression coil spring 37, and the engaging groove 29 and the engaging groove 29 provided at the tip end thereof. The engagement with the brake member 7 of 2 is released. As a result, the second brake member 7 is rotated by the urging force of the torsion coil spring 54, and the meshing portion 51 is connected to the gear portion 5 provided on the reel flange 45 on the lower end side as shown in FIG. Mesh with each other.

Next, as shown in FIG. 9, the tape reel 4
The second half 1 is attached to the first half 2 incorporating the. Then, the first half 2 and the second half 1 are screwed with screws 70 to complete the tape cassette. Then, the brake member holding slide plate 24 is retracted to a position where it does not contact the tape cassette as shown in FIG. 10, and the assembled tape cassette is taken out from the base 10.

According to the tape cassette assembling jig configured as described above, the tape cassette has been assembled by two workers so far, but by using the brake member holding means, anyone can easily perform the assembly. Since the tape reel can be incorporated in the cassette body, the tape cassette can be assembled efficiently.

The jig for assembling the tape cassette of the present invention is not limited to the above-mentioned embodiment, and can be appropriately changed without departing from the spirit of the present invention. For example, in the above embodiment, the tape cassette used for data storage has been described as an example. However, for example, a tape cassette used for a video tape recorder or the like in which a pair of tape reels are housed in the cassette body, and an ink ribbon. Can be applied to a tape cassette housed in the cassette body. In short, by biasing the brake member to the tape reel (or hub) with a spring,
The tape cassette assembling jig of the present invention can be applied to any tape cassette configured to prevent the rotation of the tape reel.

Further, in the above-mentioned embodiment, the tape cassette assembling jig of the present invention is used for assembling the tape cassette, but conversely, when the tape cassette is disassembled, this assembling jig is also used. Can be used. Further, the above-mentioned tape cassette assembly procedure is an example,
It is not limited which of the brake members 6 and 7 is locked or released first.

Further, the first brake member holding means 11
The second brake member holding means 12 and the second brake member holding means 12 are appropriately determined according to the shape of the brake member housed in the cassette body, and are not limited to this example.

[0057]

According to the jig for assembling the tape cassette of the present invention, the tape reel can be easily incorporated in the cassette body, and the tape cassette assembling having excellent productivity can be performed efficiently. A jig for use can be provided.

[Brief description of drawings]

FIG. 1 is a perspective view of a tape cassette assembling jig of the present invention.

FIG. 2 is a plan view of a tape cassette assembling jig of the present invention.

3A is a sectional view taken along line AA of FIG. 2, and FIG. 3B is FIG.
3 is a sectional view taken along line BB of FIG. 3, and FIG. 3C is a sectional view taken along line CC of FIG.

FIG. 4 is a plan view of the first half incorporating a brake member.

FIG. 5 is a plan view showing a state in which a brake member is retracted and held by a brake member holding means at a position where it does not contact the tape reel.

FIG. 6 is an enlarged perspective view of an essential part of a state where one brake member holding means retracts and holds one brake member at a position where it does not contact the tape reel.

FIG. 7 is a plan view showing a state in which the tape reel is incorporated in the first half.

FIG. 8 is a plan view showing a state in which one brake member is released.

FIG. 9 is a perspective view showing a state in which a second half is attached.

FIG. 10 is a plan view showing a state in which another brake member is released.

[Explanation of symbols]

1 second half 2 first half 3 recording media 4 tape reel 6 First brake member 7 Second brake member 8 Tape cassette assembly jig 9 recess 10 bases 11 First Brake Member Holding Means 12 Second brake member holding means 16 Brake member holding rod 18 Brake holder 24 Brake member holding slide plate 25 Slide plate cradle

Claims (2)

(57) [Claims] 1. A tape reel around which a recording medium is wound is rotatably housed in a cassette body composed of a pair of halves, and is urged by a spring to engage with a gear portion provided on the tape reel. A jig for assembling a tape cassette containing a brake member for preventing the rotation of the tape reel, the base having a recess for fitting and fixing one of the pair of halves, and the base. Brake member holding means which is provided on the table, releases the engagement with the gear portion of the tape reel against the urging force of the spring, and retracts and holds the brake member at a position where it does not contact the tape reel. A jig for tape cassette assembly characterized by being provided. 2. The brake member is brought into contact with the tape reel.
Rotate horizontally to a position where it does not touch,
Brake member holding that holds the evacuation while pressing it from above
A tape cassette assembling jig according to claim 1, further comprising:
Ingredient