JP3079655B2 - Tape cassette storage case - 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 storage case for storing a tape cassette, and more particularly to a tape cassette storage case provided with a tape hub in a stored state.

[0002]

2. Description of the Related Art Conventionally, when a tape cassette is not used, a storage case for storing the tape cassette has been used to protect the tape cassette and a magnetic tape in the cassette. The storage case is provided with a reel hub rotation preventing mechanism for preventing the rotation of the reel hub at a position corresponding to the reel hub of the tape cassette to be stored.

Conventionally, the structure of the reel hub rotation preventing mechanism has been simplified for the purpose of cost reduction, and there is a mechanism in which a rotation stop of the reel hub is integrally formed in a storage case itself.

As shown in FIGS. 7 and 8, a storage case 100 having such a structure is provided in a case corresponding to a reel shaft engaging hole 103 provided in a reel hub 102 of a tape cassette 101 stored therein. Is formed by planting a detent member 104 at the position shown in FIG. The detent member 104 has a bulge 105 formed on the outer periphery on the distal end side and a plurality of slits 104a in the axial direction.
And is elastically displaceable so as to reduce the diameter in the inner circumferential direction. And the storage case 10
When the tape cassette 101 is stored in the reel hub 102, the tape cassette 101 is fitted into the reel shaft engaging hole 103 of the reel hub 102,
The rotation preventing effect is provided by the frictional force between the inner surface of the reel shaft engaging hole 103 and the bulging portion 105 of the rotation preventing member 104.

[0005] As shown in FIG. 9, in addition to the detent member 104, a reel hub 102 is provided around the outer periphery of the detent member 104 at the upper end 106 of the tape cassette 101.
In some cases, a ring-shaped reel hub support 107 is provided for pressing and positioning.

Further, as shown in FIG. 10, the reel hub rotation preventing mechanism is not formed integrally with the storage case 100, but the tape cassette 101 to be stored is not formed.
Detent member 111 fitted into reel shaft engaging hole 103
Are mounted by urging the spring with a spring 112, and the rotation preventing member 111 attempts to prevent the rotation of the reel hub 102.

[0007] The rotation preventing member 111 is provided in the storage case 1.
The spring 112 is urged and attached to a spring receiving portion 110 centered on a support shaft 113 set up in the shaft 00, and a locking claw 114 provided on the tip side of the rotation preventing member 111 is engaged with the reel shaft. Along with engaging with a reel drive hole 108 provided at the bottom of the hole 103, the spring hub 112 presses the reel hub 102 against the upper hard inner surface 106 of the tape cassette 101 to prevent its rotation. It is.

[0008]

However, the reel hub rotation preventing mechanism having the above-described structure merely relies on a frictional force or a pressing force. It is difficult to prevent.
For this reason, once the reel rotates, the tape is loosened, causing problems such as tape damage when the tape cassette is taken out of the case or running trouble in the recording / reproducing apparatus.

[0009] Further, in the case of using a rotation preventing member as shown in FIG. 10, the structure is complicated, the production is complicated, and the cost is high.

Accordingly, the present invention has been proposed to solve the above-mentioned conventional problems, and there is provided a tape cassette storage case capable of reliably preventing the rotation of the reel hub during storage without complicating the structure. The purpose is to provide.

[0011]

In order to achieve the above object, a tape cassette storage case according to the present invention is provided on a case main body storing a tape cassette and a reel hub of the tape cassette stored in the case main body. A cylindrical fitting member that rises from the case body so as to fit into the bottomed reel shaft engaging hole; and a protrusion that is formed on the inner peripheral side of the fitting member and protrudes from the case body. A stopper member that engages with a reel drive pin engagement hole provided in the reel shaft engagement hole. The stopper member that engages with the reel drive pin engagement hole is housed in the tape cassette of the reel hub. The tape has a tip engaging portion inclined in the bending direction of the tape.

[0012]

According to the present invention, when a tape cassette is stored in a storage case, a fitting member is fitted into a reel shaft engaging hole of the tape cassette, and the fitting member is provided on an inner periphery of the reel shaft engaging hole. The surface is pressed to prevent rotation by the frictional force, and the stopper member engages with a reel drive pin engagement hole provided in the reel shaft engagement hole, thereby preventing rotation of the reel hub in the case body. Here, since the stopper member is inclined in the tape loosening direction of the reel hub, the engagement with the reel drive pin engagement hole is increased, and the rotation of the reel hub in the tape pull-out direction is reliably prevented. .

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. The tape cassette storage case 1 according to the present invention stores, for example, a tape cassette for video, and is formed by integrally injection-molding a synthetic resin.

Here, first, the tape cassette 2 housed in the tape cassette housing case 1 according to the present invention,
A pair of reel hubs 21 including a tape supply-side reel hub and a tape winding-side reel hub in a cassette body 20,
21 is accommodated, and the tape is wound between the reel hubs 21 and 21. The reel hub 21 is provided with a bottomed reel shaft engaging hole 22 on the lower surface side, and an opening 24 on the lower surface side of the cassette body 20 provided at a position corresponding to the reel shaft engaging hole 22. The reel shaft engaging hole 22 faces outward. The reel drive shaft of the recording / reproducing apparatus for recording / reproducing the tape cassette 2 is engaged with the reel shaft engaging hole 22 to rotate the reel hub 21 so that the tape can run.

Further, a plurality of reel drive pin engagement holes 23 are provided at the bottom of the reel shaft engagement hole 22.
The reel drive pin engaging holes 23 respectively engage with a plurality of drive pins formed on the tip side of the reel drive shaft of the recording / reproducing apparatus, and reliably transmit the rotational drive force of the reel drive shaft to the reel hub 21. It is intended to be able to do. That is, in this example, three reel drive pin engagement holes 23 are provided at equal intervals on the bottom of the reel shaft engagement hole 22.

A front cover 25 is provided on the front side of the cassette body 20 so that the front cover 25 is opened when the cassette body 20 is mounted on a recording / reproducing apparatus so that a tape to be stored can be pulled out for recording / reproducing. It has been done. A tape cassette storage case 1 according to the present invention for storing the tape cassette 2 formed as described above has a case body 3 for storing the tape cassette 2 as shown in FIGS.
And a lid 4 and a connecting portion 5 connecting the case body 3 and the lid 4. That is, the tape cassette storage case 1 is formed by connecting the case body 3 to one side edge of the connecting portion 5 and the lid body 4 to the other side edge in a series. The connection portions with the body 4 are formed as thin hinge portions 6 and 7 so that the cover body 4 can be bent so as to cover the case body 3.

The case main body 3 is formed so as to rise up on the outer peripheral edge corresponding to the outer peripheral shape of the tape cassette 2 in which the storage wall 8 is stored. The housing wall 8 is provided with an engaging recess 9 on the side facing the connecting portion 5 for engaging an engaging protrusion 11 provided on the lid 4 described later.

On the other hand, an outer peripheral wall 10 formed on the lid 4 so as to cover the storage wall 8 when the lid is closed except for the connecting portion 5 side.
a is provided at substantially the same height as the width of the connecting portion 5. An engaging projection 11 is provided on the inner peripheral side of the outer peripheral wall 10 a of the lid 4 facing the connecting portion 5 at a position corresponding to the engaging concave portion 9. Therefore, the cover 4 is bent at the hinges 6 and 7 and covers the case body 3 via the connecting portion 5, so that the engaging protrusion 11 of the cover 4 and the case body 3 The tape cassette storage case for storing the tape cassette 2 is formed by engaging the engagement recess 9 of the tape cassette 2.

In the tape cassette storage case 1 described above, substantially at the center of the case main body 3, that is, on the lower surface side of the tape cassette 2 to be stored, the reel shafts of the pair of reel hubs 21 and 21 stored in the tape cassette 2 are arranged. A pair of fitting members 40, 40 that fit into the reel shaft engaging holes 22, 22, are provided corresponding to the positions of the openings 24, 24 facing the mating holes 22, 22, respectively.

Further, the pair of reel hubs 2
The rotation preventing mechanism 30 is formed on one of the fitting members 40 corresponding to the tape supply side reel hub 21 at the time of tape recording and reproduction. This rotation prevention mechanism 3
0 is the tape supply side reel hub 21 on the right side in FIG.
The fitting member 40 and the stopper member 50 are formed as main components.

The fitting member 40 is formed by forming a cylindrical body from the case main body 3 as shown in FIG. Then, a plurality of slits 40a are formed along the cylindrical body in the axial direction.
To form a plurality of elastic pieces 41. The distal end side of the elastic piece 41 can be elastically displaced independently, and the entire diameter of the fitting member 40 can be reduced. In the case of Konarei it is divided as eight elastic pieces 41 by eight scan <br/> slit 40a of the cylindrical body. A swelling portion 42 swelling in the outer peripheral direction is provided on the distal end side of each of the elastic pieces 41.

That is, the fitting member 40 has a larger diameter than the reel shaft engaging hole 22 fitted by the bulging portion 42. Therefore, when the fitting member 40 is fitted in the reel shaft engaging hole 22, each of the elastic pieces 41
Is pressed to the inner peripheral side, and the distal end side of the fitting member 40 is slightly reduced in diameter as a whole and fitted. Therefore, the bulging portion 42 formed on the front end side peripheral surface is
Is elastically pressed from the inside, and the reel hub 2 is vibrated or the like.
One rotation can be prevented by frictional force.

Next, the stopper member 50 is formed on the inner peripheral side of the fitting member 40 so as to rise up in a cylindrical shape coaxial with the fitting member 40. At least one engaging claw 51 is formed to project from the upper end of the fitting member 40 in the circumferential direction. The engaging claw 51 is connected to the reel hub 2.
It is engaged with a reel drive pin engaging hole 23 provided at the bottom of the bottomed reel shaft engaging hole 22. In this example, as shown in FIG. 4, three portions are formed at equal intervals so as to correspond to the reel drive pin engagement holes 23.

The engaging claw 5 of the stopper member 50
1 is made to protrude from the pedestal portion 50a formed in a cylindrical shape, and has a low rising height of the thin engaging claw 51, so that it is hardly deformed and is strong against external vibration. I have.

The distal end side of the engaging claw 51 is shown in FIG.
As shown in an enlarged manner in FIG. 5, the height of both side edges in the circumferential direction is different from each other so as to form an inclined surface 51c inclined in the tape loosening direction of the reel hub 21. That is, this engaging claw 51 is
Side edge 51a of the engaging claw 51 on the side of the tape loosening direction
Height a of the side edge 23 of the reel drive pin engagement hole 23
The height a of the other side edge 51b on the side of the tape winding direction is lower than that of the one side edge 51a.

By increasing the amount of engagement between the reel drive pin engagement hole 23 in the reel shaft engagement hole 22 and one side edge 51a of the engagement claw 51, the reel hub 21 can be moved in the tape pulling direction. To prevent the tape from being pulled out while the tape cassette 2 is stored in the storage case 1. The difference between the one side edge 51a and the other side edge 51b is 1 mm or less. When the tape cassette 2 is stored in the storage case 1, the engagement claw 51 is driven by the reel as shown in FIG. Even when the tape cassette 2 does not fit into the pin engagement hole 23, the tape cassette 2 does not rise
The cover 4 is securely closed. From this state, when the reel hub 21 is guided by the inclined surface 51c on the tip side of the engaging claw 51 and slightly rotated in the tape pull-out direction by a slight vibration or the like, the reel hub 21 is engaged with the reel driving pin engaging hole 23. The claws 51 are securely engaged. That is, in this example, since the engagement claws 51 are provided at three places at equal intervals, at most 1/3 of the circumference, FIG.
As shown in (b), the engaging claw 51 is securely engaged in the reel drive pin engaging hole 23.

When the engagement claw 51 is securely engaged with the reel drive pin engagement hole 23, one side edge 51a of the engagement claw 51 is brought into contact with the side surface 23a of the reel drive pin engagement hole 23. Since the engagement amount is increased, further rotation of the reel hub 21 in the tape loosening direction is reliably prevented.

In this embodiment, a ring-shaped reel hub support 13 is provided around the outer periphery of the fitting member 40. The reel hub support 13 supports the base end side of the reel hub 21 of the tape cassette 2 where the reel shaft engaging hole 22 faces, and supports the upper surface wall 20 of the cassette body 20 of the tape cassette 2.
a, the upper end of the reel hub 21 is pressed against the reel hub 21.
The height of the object is determined.

Further, a positioning deformation preventing member 43 for preventing deformation of each elastic piece 41 of the fitting member 40 is formed upright between the elastic pieces 41 of the divided fitting member 40. That is, in this example, every other elastic piece 41 of the fitting member 40 is provided at intervals of about 90 °. The positioning deformation preventing member 43 is for positioning the reel shaft engaging hole 22 with respect to the fitting member 40, and the elastic piece 41 of the fitting member 40 is bent by a certain degree or more by the vibration of the reel hub 21. Then, the peripheral surface of the reel shaft engaging hole 22 abuts against the positioning deformation preventing member 43 to prevent the reel hub 21 from further moving. And the reel hub 2
(1) to prevent the fitting member 40 from maintaining a cylindrical shape due to the so-called creep deformation of the elastic piece 41 due to the load 1, thereby ensuring the fitting holding force of the elastic piece 41 It is.

When the tape cassette 2 is stored in the tape cassette storage case 1 configured as described above, as shown in FIG.
The reel hub 21 is slightly bent toward the inner peripheral side along the outer peripheral surface of the reel shaft engaging hole 22, and the reaction force thereof presses the reel hub 21 from the inner surface side to prevent the reel hub 21 from rotating. On the other hand, the engaging claw 51 formed at the tip of the stopper member 50 is fitted in the reel driving hole 23 formed in the reel shaft engaging hole 22 to prevent the reel hub 21 from rotating.

At this time, the engaging claw 5 of the stopper member 50
1 is inclined in the tape loosening direction of the reel hub 21, so that the amount of engagement with the reel drive pin engaging hole 23 is increased, and the reel hub 21 is surely rotated in the tape pull-out direction. Block.

As described above, according to the present invention, the rotation preventing mechanism of the reel hub 21 has a double structure, and the inner circumferential surface of the reel shaft engaging hole 22 is pressed by the fitting member 40 to prevent the rotation by the frictional force. At the same time, the stopper member 50 is engaged with the reel drive pin engaging hole 23 to ensure that the reel hub 21 is prevented from rotating. In this embodiment, as shown in FIG. 1, the fitting support member fitted to the tape winding side reel hub on the left side in the figure includes the fitting member 40 and a reel hub support provided around the outer periphery thereof. 13, but it is needless to say that a rotation prevention mechanism having the same configuration as that of the right tape supply side reel hub may be provided at a position corresponding to the tape winding side reel hub. Nor.

[0033]

As described above, according to the present invention, when the tape cassette is stored in the storage case, the fitting member and the stopper member engage with the reel shaft engaging hole of the tape cassette. That is, the fitting member presses the inner peripheral surface of the reel shaft engaging hole to prevent rotation by the frictional force, and the stopper member engages the reel drive pin engaging hole provided in the reel shaft engaging hole. By the engagement, the rotation of the reel hub can be reliably prevented.

Therefore, the rotation of the reel hub can be reliably prevented, and the tape can be reliably prevented from being subjected to extra load or damage during storage.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an open state of a tape cassette storage case according to the present invention.

FIG. 2 is a plan view showing a storage section side of the storage case.

FIG. 3 is a sectional view showing a state where a tape cassette is stored in the storage case and the lid is closed.

FIG. 4 is an enlarged perspective view of a stopper member.

FIG. 5 is an enlarged view of an engagement claw of a stopper member.

FIGS. 6A and 6B are enlarged views of a main part showing a relationship between an engagement claw of a stopper member and a reel drive pin engagement hole, wherein FIG. 6A shows a state before engagement, and FIG.

FIG. 7 is a perspective view showing an open state of a conventional tape cassette storage case.

FIG. 8 is a sectional view showing a state where the tape cassette of the conventional storage case is stored and closed.

FIG. 9 is a cross-sectional view illustrating a state in which a tape cassette of another conventional storage case is stored and closed.

FIG. 10 is a cross-sectional view showing a state in which a tape cassette of another conventional storage case is stored and closed.

[Description of Signs] 1 ... Tape cassette storage case 2 ... Tape cassette 21 ... Reel hub 22 ... Reel shaft engaging hole 23 ... Reel drive pin engaging hole 40 ... Mating member 50: stopper member 51: engaging claw

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 60-120968 (JP, U) Japanese Utility Model Showa 55-97883 (JP, U) Japanese Utility Model Showa 55-97885 (JP, U) Japanese Utility Model Showa 64- 53088 (JP, U) Fully open 1979-149819 (JP, U) Fully open 1979-145819 (JP, U) Fully open 1979-164880 (JP, U) Fully open, 52-15223 (JP, U) Japanese Utility Model 1-141280 (JP, U) Japanese Utility Model 56-64574 (JP, U) Japanese Utility Model 60-195782 (JP, U) Japanese Utility Model 4-78187 (JP, U) Japanese Utility Model 3-100188 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B65D 85/00-85/28 B65D 85/575 G11B 23/023

Claims (1)

(57) [Claims] 1. A case body in which a tape cassette is housed, and a case body rising from the case body so as to fit into a bottomed reel shaft engaging hole provided in a reel hub of the tape cassette housed in the case body. A cylindrical fitting member, a stopper located on the inner peripheral side of the fitting member and protruding from the case body, and a leading end side engaged with a reel drive pin engaging hole provided in the reel shaft engaging hole. And a stopper member that engages with the reel drive pin engagement hole.
A tape cassette storage case having a tip engagement portion inclined in a bending direction of a tape stored in the tape cassette of the reel hub.