JPH09306140A - Tape cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent entering of dust into the body of a cartridge from the surroundings of an opening/closing cover. SOLUTION: This cartridge is constituted in such a manner that a single tape reel provided with upper and lower flanges and wound round with a magnetic tape is housed in the body 3 of cartridge by always being pressed to the lower half side by a coil spring and an opening part 28 arranged on the body 3 of cartridge is made so as freely to open/closed by the opening/ closing cover 17. In this case, a rib 31 which is engaged with a recess 30 arranged on the side of a supporting shaft 29 of the opening/closing cover 17 on the peripheral edge of the opening part 28, is formed on the inner surface 17a of the opening/closing cover 17 so that the recess 30 is blocked by the rib 31 when the opening part 28 is closed by the opening/closing cover 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge for data storage used as a backup for a computer or the like.

[0002]

2. Description of the Related Art For example, a tape cartridge for data storage used as a backup of a computer or the like is shown in FIG.
As shown in FIG. 2, a magnetic tape 1 having a disc-shaped upper flange 104 and a lower flange 105 in a cartridge body 103 composed of an upper half 101 and a lower half 102.
A single wound tape reel 107 of 06 is wound on the lower half 1 by a reel spring 108 which is a coil spring.
It has been proposed that it is always biased toward the 02 side and stored.

[0003] The tape reel 107 has an upper flange 1
04 and a lower flange 105, and the upper flange 104
The magnetic tape 106, to which the leader tape 109 is connected, is wound around the hub provided in the. The tape reel 107 has a ring-shaped bearing that is press-fitted and fixed in a circular recess formed in the central portion of the upper flange 104, and a reel rotation support shaft (not shown) is also attached to the bearing, so that the reel. It is designed to rotate around a rotation support shaft.

The tape reel 107 is always urged toward the lower half 102 by a reel spring 108 having one end contacting the inner surface 101a of the upper half 101 and the other end contacting the reel rotation support shaft. I have. The reel spring 108 is a compression coil spring having a cylindrical shape.

In this tape cartridge, a recording and / or reproducing apparatus (hereinafter simply referred to as a drive apparatus)
When not in use, the torsion coil spring 11
A pair of brake members 11 urged by 0,111
2 and 113, the tape reel 107 cannot be rotated. That is, the tape reel 107
Are gear portions 11 formed around the outer periphery of the upper flange 104.
In FIG. 4, the meshing portions 115 and 116 provided on the brake members 112 and 113 mesh with each other, so that rotation is impossible.

In the non-use state, the magnetic tape 106 is completely wound around the tape reel 107, and the leader tape 109 is
The hook 3 is engaged with a hook 117 provided on the side of the third side. Also, an opening 120 for pulling out the magnetic tape 106 to the outside of the cartridge body 103.
Is closed by an opening / closing lid 118 rotatably attached to the cartridge body 103.

On the other hand, when the tape cartridge is mounted on the drive unit, the tape reel 107 is lifted to the central position of the cartridge body 103 against the urging force of the reel spring 108, and the brake members 112 and 113 are used. Is unlocked, and the tape reel 107 is made rotatable. Further, the opening / closing lid 118 is opened by lid opening / closing means provided on the drive device side. Further, the magnetic tape 106 is pulled out from the cartridge body 103 to the outside by a tape pulling means provided on the drive device side.

In addition, this tape cartridge is provided with an erroneous erasure prevention member 119 for preventing information from being erroneously recorded on the magnetic tape 106. The erroneous erasure prevention member 119 is used for the opening / closing lid 118.
It is provided slidably on the side surface of the cartridge body 103 on the opposite side.

As shown in FIG. 5, the opening / closing lid 118 is attached to a columnar support shaft 121 formed on the inner surface 101a of the upper half 101 together with a door spring 122 which is a torsion coil spring. .
The opening / closing lid 118 is configured to constantly close the opening 120 formed in the cartridge body 103 by the door spring 122.

However, since the recess 123 is provided in the periphery of the opening 120 near the support shaft 121, as shown in FIG. 6, the recess 123 and the opening / closing lid 1 are provided.
Dust such as dust may enter the inside of the cartridge main body 103 through the opening 120 from the space 124 sandwiched by 18 and the like. When dust adheres to the magnetic tape 106, it causes dropout, which adversely affects recording and reproduction. For this reason, the cartridge body 10
It is necessary to prevent dust from entering the inside of 3.

Therefore, an object of the present invention is to provide a tape cartridge which can prevent dust from entering the inside of the cartridge body from around the opening / closing lid.

[0012]

SUMMARY OF THE INVENTION According to the present invention, a single tape reel, in which a magnetic tape having an upper flange and a lower flange is wound in a cartridge main body composed of an upper half and a lower half, is provided by a coil spring. A tape cartridge which is always biased and stored toward the lower half side and whose opening provided in the cartridge main body can be opened and closed by an opening / closing lid, and which is provided on the support shaft side of the opening / closing lid at the peripheral edge of the opening. A tape that fits into the formed recess is formed on the inner surface of the opening / closing lid, and the recess is closed by the rib when the opening is closed by the opening / closing lid. The above object is achieved by providing a cartridge.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a specific tape cartridge to which the present invention is applied will be described with reference to the drawings. In this embodiment, the present invention is applied to a tape cartridge used for data storage used as a backup of a computer.

FIG. 1 is an exploded perspective view of a tape cartridge,
FIG. 2 is an enlarged perspective view of an essential part of the tape cartridge showing a state in which the opening / closing lid is opened and the opening is opened. FIG. FIG. 3 is an enlarged cross-sectional view of a main part of the tape cartridge showing a closed state.

The tape cartridge of this embodiment is shown in FIG.
As shown in FIG. 2, a single tape reel 7 on which a magnetic tape 6 having an upper flange 4 and a lower flange 5 is wound in a cartridge body 3 composed of an upper half 1 and a lower half 2.
Is a tape cartridge which is always urged toward the lower half 2 side by a reel spring 8 which is a coil spring and stored.

The tape cartridge of this embodiment will be described in more detail. As shown in FIG. 1, the upper half 1 is provided with a first brake member 9 and a second brake member 10 for preventing the tape reel 7 from rotating when not used in a drive device. ing.

The first brake member 9 has a comb tooth-shaped meshing portion 12 that meshes with a gear portion 11 formed on the outer periphery of the upper flange 4, and is provided on the inner surface of the upper half 1 and is not shown. It is rotatably attached to the brake support shaft. Then, the first brake member 9
The meshing portion 12 is constantly urged in the direction meshing with the gear portion 11 by a first reel lock spring 13 formed of a torsion coil spring.

The second brake member 10 also has a comb-teeth-shaped meshing portion 14 that meshes with a gear portion 11 formed on the outer periphery of the upper flange 4, and is provided on the inner surface of the upper half 1 as illustrated. It is mounted rotatably on the brake support shaft. The second brake member 10 is urged by a second reel lock spring 15 also composed of a torsion coil spring in a direction in which the meshing portion 14 meshes with the gear portion 11.

The upper half 1 has an opening 28 for pulling the magnetic tape 6 outward from the cartridge body 3.
An opening / closing lid 17 is provided to open and close the opening. As shown in FIG. 2, the opening / closing lid 17 is rotatably attached to a support shaft 29 provided on the upper half 1, and the opening 28 is always closed by a door spring 18 made of a torsion coil spring. Direction (arrow X in Figure 2
Direction). The opening / closing lid 17 is designed so as not to be opened carelessly by a door lock described later when not in use.

On the other hand, the lower half 2 is provided with a hook 20 for hooking the leader tape 19 connected to the end portion of the magnetic tape 6. This hook 20
Has a hook-shaped tip, and a leader tape 19
The leader tape 19 is accurately positioned by being inserted into and engaged with a notch (not shown) provided in the tape. When the leader tape 19 is positioned by the hook 20, the magnetic tape 6 can be reliably pulled out of the cartridge body 3 by the tape pull-out means provided on the drive device side.

As shown in FIG. 1, the lower half 2 is formed with an opening 21 for projecting the tip end of a hub (not shown) protruding from the lower flange 5 to the outside. The opening 21 is a circular hole at the center of the lower half 2.

An erroneous erasure prevention member 16 is provided between the upper half 1 and the lower half 2 to prevent information from being erroneously recorded on the magnetic tape 6. The erroneous erasure prevention member 16 is slidably provided on one side wall of the cartridge body 3.

The tape reel 7 provided between the upper half 1 and the lower half 2 is provided integrally with the upper flange 4 and the lower flange 5 for adjusting the winding state of the magnetic tape 6. And a hub around which the magnetic tape 6 is wound. The upper flange 4 is formed as a disk, and the outer peripheral edge of the upper flange 4 has a meshing portion 12 of the first brake member 9 and a second brake member 1.
The gear section 11 meshes with the 0 meshing section 14.

At the center of the upper flange 4, a circular recess 22 is formed. Then, the recess 22
A disc 23 having a disc shape, which functions as a bearing when the tape reel 7 rotates, is fitted in the center portion of the tape reel 7. A ball 25 made of a metal material rotatably held on a reel rotation support shaft 24 that supports the rotation of the tape reel 7 comes into contact with the disk 23.

On the other hand, the lower flange 5 is formed as a disk body having a circular fitting hole 26 facing the tip of the hub at its center, and the fitting hole 26 is fitted to the tip of the hub. Thus, the hub is fixed to the hub. The tape reel 7 is accommodated between the upper half 1 and the lower half 2 fixed by screws 27.

In the tape cartridge thus constructed, the tape reel 7 is urged toward the lower half 2 by the reel spring 8 when it is not mounted in the drive device and is not used. The tape reel 7 is in a non-rotatable state by the first brake member 9 and the second brake member 10. Further, the opening / closing lid 17 is closed by a door lock, and the leader tape 9 is locked by the hook 20.

On the other hand, when the tape reel 7 is mounted on the drive device and used, the tape reel 7 is lifted to the central position of the cartridge body 3 against the urging force of the reel spring 8 and the brake members 9 and 10 are moved. The lock is released, and the tape reel 7 can be rotated. Then, the opening / closing lid 17 is opened by the lid opening / closing means provided on the drive device side, and the magnetic tape 6 is pulled out from the cartridge body 3 to the outside by the tape pulling means also provided on the drive device side.

Thus, in the tape cartridge of the present embodiment, as shown in FIG. 2, ribs that fit into the recesses 30 provided on the support shaft 29 side of the opening / closing lid 17 at the periphery of the opening 28. 31 is the inner surface 1 of the opening / closing lid 17
7a.

The rib 31 is provided at a position facing the recess 30 so as to be connected to a protrusion 32 formed on the inner surface 17a of the opening / closing lid 17 as a frame body facing the opening 28. There is. As shown in FIG. 3, the rib 31 closes the recess 30 when the opening 28 is closed by the opening / closing lid 17. That is, the rib 31 has a shape corresponding to the shape of the recess 30, and when the opening 28 is closed by the opening / closing lid 17, the rib 31 is fitted into the recess 30 so that the recess 30 does not have a gap. It is supposed to be closed.

As described above, when the opening 28 is closed by the opening / closing lid 17, the recess 30 is closed by the rib 31 formed on the opening / closing lid 17, so that the opening 28 is opened from the recess 30. It is possible to prevent dust from entering the cartridge body 3 through the. Therefore,
It is possible to prevent dust that causes dropout from entering the cartridge body 3 from around the opening / closing lid 17.

[0031]

As is apparent from the above description, according to the tape cartridge of the present invention, it is possible to provide a tape cartridge capable of preventing dust from entering the inside of the cartridge body from around the opening / closing lid.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a tape cartridge according to an embodiment.

FIG. 2 is an enlarged perspective view of an essential part of the tape cartridge of the present embodiment, showing a state in which the opening / closing lid is opened and the opening is opened.

FIG. 3 is an enlarged cross-sectional view of a main part of the tape cartridge according to the present embodiment, showing a state in which a rib formed on the opening / closing lid is fitted into a recess provided in the peripheral edge of the opening to close the recess.

FIG. 4 is an exploded perspective view of a conventional tape cartridge.

FIG. 5 is an enlarged perspective view of a main part of a conventional tape cartridge, showing a state in which an opening / closing lid is opened and an opening is opened.

FIG. 6 is an enlarged cross-sectional view of a main part of a conventional tape cartridge, which has a void in a portion sandwiched by a recess provided on the periphery of an opening and an opening / closing lid.

[Explanation of symbols]

 1 Upper half 2 Lower half 3 Cartridge body 4 Upper flange 5 Lower flange 6 Magnetic tape 7 Tape reel 8 Reel spring 17 Opening / closing lid 18 Door spring 28 Opening 29 Support shaft 30 Recess 31 31 Rib

Claims (1)

[Claims] 1. A single tape reel, in which a magnetic tape having an upper flange and a lower flange is wound, in a cartridge body composed of an upper half and a lower half, is constantly urged toward the lower half by a coil spring. It is stored as
In a tape cartridge in which an opening provided in the cartridge main body can be opened and closed by an opening / closing lid, a rib that fits into a recess provided on the support shaft side of the opening / closing lid at the periphery of the opening is provided with a rib of the opening / closing lid. A tape cartridge characterized in that it is formed on an inner surface, and when the opening is closed by the opening / closing lid, the recess is closed by the rib.