JPH04353681A - Tape cassette - Google Patents

Abstract

PURPOSE:To facilitate assembling while achieving a decrease in occupying space outside the body when a lid is opened by fastening an upper cover on a slider after the mounting of a magnetic tape on a tape cassette in the assembling by sealing the magnetic tape with a front lid, the slider and the upper cover. CONSTITUTION:A supply reel 3 and a winding reel 4 being wound with a magnetic tape 2 are housed into a tape cassette 1 comprising an upper half 1a and a lower half 1b and the tape 2 looped on fixed struts 1c and 1b surround an opening 11. A slider 6 is pressed in the direction of a front lid 5 with a spring to cover the opening 11 with the bottom surface of the tape and the bottom surface covered with the front lid 5 on the front thereof is closed and both ends of the tape are mounted on the lower half 1b free to slide. This facilitates the assembling while with the sliding if the slider 6 and an upper cover 7 in the direction of the reels, the front 1id 5 covering a magnetic surface of the tape 2 is turned upward. Moreover, with the movement of the front lid in the direction of the reels, an occupying space outside the body decreases during the opening of the lid.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette used in a rotary head type magnetic tape device.

0002

2. Description of the Related Art A tape cassette used in a conventional rotary head type magnetic tape device has a mouth portion into which a tape pull-out member for pulling out the magnetic tape is inserted.
A tape cassette having a structure as shown in Japanese Unexamined Patent Publication No. 1-320693 has been common. The configuration will be described below with reference to FIGS. 10 and 11.

As shown in the figure, a tape cassette 31 used in a magnetic tape device houses a supply reel 33 and a take-up reel 34 on which a magnetic tape 32 is wound. The magnetic tape 32 has an opening for inserting a tape pull-out member that pulls out the magnetic tape 32 from the tape cassette 31 and winds it onto a drum (not shown) equipped with a rotating head between the supply reel 33 and the take-up reel 34. 35 and is stretched. The stretched magnetic tape 32 is covered with a front cover 36 and a rear cover 37 so that the magnetic tape 32 cannot be easily touched.When in use, the front cover 36 and the rear cover 37 are rotated upward. The magnetic tape 32 is exposed, and the tape pull-out member pulls out the magnetic tape 32 to a drum equipped with a rotating head.

0004

However, in the conventional tape cassette 31 as described above, the front cover 36 and the rear cover 3
7 is fully rotated, both of them are located directly above the opening 35, resulting in a vertically double layered structure. In order to provide the necessary upper clearance, there is a problem in that the space occupied by the tape cassette 31 outside the main body becomes large.

[0005] The present invention solves the above-mentioned problems by making it easy to assemble a tape cassette, and reducing the space above the opening into which the tape pull-out member is inserted, so that even when the lid is rotated, the space occupied by the outside of the cassette body is not occupied. The purpose is to provide a tape cassette with a smaller size.

[0006]

[Means for Solving the Problems] In order to achieve this object, the tape cassette of the present invention consists of an upper half and a lower half, houses a supply reel and a take-up reel wound with magnetic tape, and a cassette body with a tape stretched across the opening; a slider that covers the bottom surface of the cassette body opening and slides on the cassette body; and a slider that covers the top surface of the cassette body opening and that covers the slider. An upper cover that is fixed and slides on the cassette body, and a front cover that covers the magnetic tape in front and seals the magnetic tape with the slider and the upper cover, and is rotationally driven by the slider. It is.

[0007]

[Function] With the above-described structure, the present invention allows the upper cover to be fixed to the slider after the magnetic tape is wound around the supply reel and the take-up reel and attached to the tape cassette during assembly. Since it is sealed, it is possible to protect the magnetic tape, and as the slider slides in the reel direction, the front cover rotates approximately 90 degrees, and then moves further in the reel direction, allowing the tape drawer to be inserted. Even when the front cover is rotated fully open, the space occupied outside the cassette body can be reduced.

[0008]

[Embodiments] Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 6.

As shown in the figure, a supply reel 3 and a take-up reel 4 on which a magnetic tape 2 is wound are housed in a tape cassette 1 consisting of an upper half 1a and a lower half 1b, and the magnetic tape 2 is formed on the tape cassette 1. fixed post 1c,
1d and surrounds the opening 11.

[0010] The front cover 5 is a fixed post 1 of the tape cassette 1.
c, 1d to cover the stretched magnetic tape 2 on the front surface, engage the shafts 101 and 102 formed on the sides of the tape cassette 1 through long holes 52 and 55 formed in the ribs 51 and 54 at both ends, and further Long holes 53 and 56 formed in the ribs 51 and 54 at both ends engage shafts 62 and 64 set on vertical walls 61 and 63 of the slider 6, respectively. The slider 6 is pressed in the direction of the front lid 5 by a spring (not shown), covers the opening 11 of the tape cassette 1 with its bottom surface, seals the bottom surface of the magnetic tape 2 whose front surface is covered with the front lid 5, and seals the bottom surface of the magnetic tape 2 whose front surface is covered with the front lid 5. vertical walls 61, 63, and 65 are raised to the sides of the tape cassette 1, and the tape cassette 1 is slidably attached to the lower half 1b. The upper cover 7 is fixed to the vertical walls 61, 63, and 65 of the slider 6.
It slides with the cassette body 1 sandwiched therebetween.

To explain how to assemble a tape cassette with the above configuration, first, the magnetic tape 2 wound over the supply reel 3 and take-up reel 4 is placed on the lower half 1b of the tape cassette 1 on which the slider 6 is slidably attached. The magnetic tape 2 is loaded by surrounding the opening 11 formed in the lower half 1b of the tape cassette 1 and the vertical wall 65 of the slider 6 which slides through the opening 11. At this time, a spring (not shown) is attached that biases the slider 6 in a direction away from the supply reel 3 and take-up reel 4, that is, toward the front of the opening 11 of the tape cassette 1.

Next, the front cover 5 is inserted into the tape cassette 1 using the long holes 52 and 55 formed in the ribs 51 and 54 at both ends of the front cover 5.
The tape cassette 1 is attached to the upper half 1a of the tape cassette 1 by engaging with shafts 101 and 102 formed on the side surfaces of the tape cassette 1.
The upper half 1a and the front lid 5 are attached to the lower half 1b of the tape cassette 1. At this time, the ribs 51 and 54 on both sides of the front lid 5 are passed through the vertical walls 61 and 63 of the slider 6 using elastic displacement, and the shafts 62 and 64 formed on the vertical walls 61 and 63 of the slider 6 are connected to the front lid. The long holes 53 and 56 formed in the ribs 51 and 54 of No. 5 are engaged with each other.

Finally, the slider 6 is moved toward the front of the opening 11 of the tape cassette 1 to fully close the front cover 5 and the upper cover 7 is fixed to the vertical walls 61, 63, and 65 of the slider 6.

Here, the upper cover 7 and the vertical wall 6 of the slider 6
An example of the fixing methods of 1, 63 and 65 will be described with reference to FIGS. 7 to 9. The upper cover 7 is provided with bent portions 71, 73, and 75 at both ends and at the center of the front surface. To explain one joining part as a representative, the vertical wall 63 of the slider 6 is formed with two protrusions 63a and 63b on the upper surface and a claw 63c on the inner surface. The bent portion 73 of the upper cover 7 is sandwiched between the protrusions 63a and 63b to restrict the upper cover 7 in the front-back direction, and also has a through hole that engages with the claw 63c to restrict the upper cover 7 in the vertical direction. 73c. By making the vertical walls 61 and 65 of the slider 6 and the bent parts 71 and 75 of the upper cover 7 the same, the bent parts 71, 73 and 75 of the upper cover 7 and the vertical walls 61 and 6 of the slider 6
3 and 65 can be fixed by pressing them together.

To explain the operation of the tape cassette assembled as described above, first, as shown in FIG.
When the magnetic tape 2 is attached to a magnetic tape device, the non-magnetic surface of the magnetic tape 2 is opened by sliding the slider 6 and the upper cover 7 in the direction of the supply reel 3 and the take-up reel 4 against the urging force of the spring. At the same time, the shafts 62 and 64 formed in the vertical walls 61 and 63 of the slider 6 are moved in the horizontal direction to press the long holes 53 and 56 formed in the ribs 51 and 54 of the front lid 5. As a result, the front cover 5 can be opened using long holes 52 and 55 formed in the ribs 51 and 54 at both ends of the front cover 5.
A shaft 10 formed on both sides of the tape cassette 1 engaged with
The magnetic tape 2 is rotated approximately 90 degrees about the fulcrum 1, 102, and the magnetic surface of the magnetic tape 2 is exposed, resulting in the state shown in FIG.

After that, by further sliding the slider 6 and the upper cover 7, the slider 6 is moved against the vertical wall 61 of the slider 6.
The ribs 51 of the front lid 5 are connected to the shafts 62 and 64 formed in the shafts 62 and 63.
The front lid 5 is locked by the recesses of the long holes 52 and 55 formed in the ribs 51 and 54 of the front lid 5, and presses the front lid 5.
Elongated holes 52 and 55 formed in the slider 6 are engaged with and guided by shafts 101 and 102 on both sides of the tape cassette 1.
and a supply reel 3 and a take-up reel 4 integrally with the upper cover 7.
The robot moves in the direction shown in FIG. 6.

In the state shown in FIG. 6, the top and bottom surfaces of the opening 11 of the tape cassette 1 are open, and even if the front cover 5 is rotated approximately 90 degrees to the top of the opening 11 of the tape cassette 1, the tape pull-out member cannot be moved. There is sufficient clearance necessary for insertion. When the tape cassette 1 is inserted into the reference position of the magnetic tape device in this state, the tape pull-out member inserted into the opening 11 of the tape cassette 1 pulls out the magnetic tape 2 from the supply reel 3 or the take-up reel 4, and the drum on which the rotating head is mounted is pulled out. By moving to a nearby position and winding the magnetic tape 2 around a drum equipped with a rotating head, the drum equipped with a rotating head is rotated, the supply reel 3 and the take-up reel 4 are rotated, and the magnetic tape is run. Recording or reproduction on the magnetic tape 2 becomes possible.

Next, when ejecting from the magnetic tape device,
The magnetic tape 2 wound around a drum equipped with a rotating head is wound onto the supply reel 3 or take-up reel 4 as the tape pull-out member moves, and the magnetic tape 2 is wound into the opening 11 of the tape cassette 1.
The tape pull-out member moves, and the tape pull-out member is further pulled out from the opening 11 of the tape cassette 1, and the tape cassette 1 moves to a closing operation. In the closing operation, the slider 6 and the upper cover 7 close the supply reel 3 and the take-up reel 4 due to the reaction force of the spring.
The slider 6 starts sliding in the direction away from the shaft 62 which is set on the vertical walls 61 and 63 of the slider 6.
, 64 press the long holes 52 and 55 formed in the ribs 51 and 52 of the front cover 5, and the ribs of the front cover 5 engage with the shafts 101, 102 formed on both sides of the tape cassette 1. The supply reel 3 and the take-up reel 4 are guided by long holes 52 and 55 formed in 51 and 52 and integrated with the slider 6.
The shafts 101 and 102 formed on both sides of the tape cassette 1 move away from the ribs 51 and 54 of the front lid 5.
The state shown in FIG. 5 is achieved by contacting one end of long holes 52 and 55 formed in FIG.

Further, by sliding the slider 6 in a direction away from the supply reel 3 and the take-up reel 4, the shafts 62 and 64 installed on the vertical walls 61 and 63 of the slider 6 are aligned with the ribs 51 and the ribs 51 of the front lid 5. Long holes 53 and 56 formed in 54
is pressed, and the front cover 5 is rotated about shafts 101 and 102 formed on both sides of the tape cassette 1, which are engaged with the long holes 52 and 55 formed in the ribs 51 and 54 of the front cover 5. In this state, the magnetic tape 4 is sealed between the slider 6 and the front lid 5, and the top and bottom surfaces of the opening 11 of the tape cassette 1 are covered with the slider 6.

As described above, according to the tape cassette of the embodiment of the present invention, the upper and lower halves 1a and 1b of the tape cassette 1
After loading the supply reel 3 and take-up reel 4 containing the magnetic tape 2 and assembling the front cover 5 and slider 6, the upper cover can be fixed. By rotating the front cover 5 that covers the magnetic surface of the tape 2 upward and further moving it in the reel direction, the space occupied is small and the space above the opening 11 of the tape cassette 1 into which the tape pull-out member is inserted can be enlarged. .

[0021]

As is clear from the above description, according to the present invention, it is easy to install the supply reel and take-up reel around which the magnetic tape is wound into the tape cassette, and the front cover, slider, and upper cover Since the tape is sealed, it is possible to protect the magnetic tape. When in use, the slider and upper cover are slid in the direction of the reel, and the front cover is fully opened by taking up the space above the opening where the tape drawer member is inserted. Therefore, it is possible to provide a cassette tape that occupies a small space outside the cassette main body during use, and also minimizes the chance of the tape being caught between the front cover and the slider when fully closed.

[Brief explanation of drawings]

FIG. 1: Exploded perspective view of an embodiment of the present invention

[Fig. 2] A plan view of the embodiment of the present invention when the tape cassette is stored.

[Fig. 3] Plan view when the tape cassette is fully opened in the embodiment of the present invention.

[Fig. 4] Side view (partial sectional view) when the tape cassette is stored in the embodiment of the present invention.

[Fig. 5] Side view (partial sectional view) of the tape cassette during opening in the embodiment of the present invention.

[Fig. 6] Side view (partial sectional view) when the tape cassette is stored in the embodiment of the present invention.

FIG. 7 is an exploded perspective view of the slider and upper cover fixing mechanism in the embodiment of the present invention.

FIG. 8 is a perspective view of the slider and upper cover in a fixed state in the embodiment of the present invention.

FIG. 9 is a sectional view showing the engaged state of the claw and through hole of the slider and upper cover fixing mechanism in the embodiment of the present invention.

[Fig. 10] Perspective view of a conventional tape cassette

[Figure 11] Side view of a conventional tape cassette

[Explanation of symbols]

1 Tape cassette 2 Magnetic tape 5 Front lid 6 Slider 7 Top cover

Claims (1)

[Claims] [Claim 1] Consisting of an upper half and a lower half, housing a supply reel and a take-up reel wound with magnetic tape,
a cassette body with the magnetic tape stretched across the opening; a slider that covers the bottom surface of the cassette body opening and slides on the cassette body; a slider that covers the top surface of the cassette body opening; an upper cover that is fixed to a slider and slides on the cassette body; a front cover that covers the magnetic tape on the front side and seals the magnetic tape with the slider and the upper cover; and a front cover that is rotationally driven by the slider. A tape cassette.