JPS63234476A - Tape cartridge - Google Patents

Abstract

PURPOSE:To improve the workability of assembly by mounting freely slidably back and forth to a slide frame for blocking an opening hole of a pocket for tape loading onto a main body case and fitting a front lid pivotally to the slide frame freely turnably to open and close and enabling the lid to be held and locked up in its closing pose. CONSTITUTION:The pocket 7 for tape loading is opened and closed by the slide frame 9 mounted freely slidably back and forth in front of the main body case 1, and the front lid 10 is openably and closably supported by this slide frame 9. Then, a lock member 26 is provided on the slide frame 9 to hold and lock the front lid 10 in its open pose. By this method, the construction is simple, whereas the front lid 10 for covering the front surface of the outside of a tape 4 and a member 9 for covering the opening hole of the pocket 7 can be set up quite easily.

Description

[Detailed Description of the Invention] [Industrial Application Field] In a tape cartridge in which a tape loading pocket is formed on the front of the main case, the front outside of the tape led out to the front of the case by the front cover when not in use. cover and protect. Furthermore, in order to prevent dust from adhering to the tape through the pocket, it is necessary to cover the opening surface of the pocket.

The present invention is a tape cartridge equipped with a front cover for tape protection and a member (sliding frame) for covering the pocket, which has been improved in order to further ensure the tape protection function.

[Conventional technology]

For example, in a digital recording/playback audio tape cartridge (so-called DAT), it is known that a flat slide member for opening and closing a tape loading pocket is attached to the main body case so that it can be slid back and forth ( (Japanese Patent Application Laid-Open No. 61-278091, etc.)
.

In addition, in the case of the 8 Dragon video cassette, a back cover that opens and closes in conjunction with the movement of the front cover is connected to the front cover, which is pivoted to the main body case, and the front cover covers the outside of the front of the tape.

A configuration in which the inner side of the back surface of the tape is covered with a back cover is known (such as Utility Model Application Publication No. 189486/1986 Koyuki U).
.

[Problem that the invention seeks to solve]

However, in the above-mentioned DAT method 2, the front cover and the slide member are separately attached to one main body case, and the workability of assembling the two is poor.

On the other hand, in the 3NM video cassette system, in order to open and close the back cover in conjunction with the opening and closing operations of the front cover, the back cover is not only simply connected to the front cover by a pivot, but also allows the back cover to move freely towards the main case. It is necessary to control the movement of the back cover by connecting it to the back cover, which complicates the structure and, like the above-mentioned DAT method, has poor assembly workability. If there is high frictional resistance at the connection part with the main body case when opening and closing the back cover, it is likely to cause malfunction or damage. For this reason, strict dimensional accuracy of each part is required, which may still cause the above-mentioned problems.

From this point of view, the present invention aims to provide a tape cartridge that can reliably protect the tape when not in use.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tape cartridge that has a simple structure and that allows extremely easy assembly of a front cover that covers the outside of the front surface of the tape and a member that covers the opening surface of the pocket.

An object of the present invention is to provide a tape cartridge in which the above-mentioned members operate reliably when loaded onto a deck.

[Means for solving problems]

In this invention, as shown in FIG. 1, a tape loading pocket 7 is opened and closed by a slide frame 9 attached to the front of the main body case 1 so as to be slidable back and forth, and a front cover 10 is opened and closed by this slide frame 9. support possible. A locking member 26 is provided on the slide frame 9 so that the front 1)0 can be locked and held in the closed position.

〔Example〕

1 to 6 show embodiments of the invention.

In FIGS. 2 and 3, the target tape cartridge has left and right sets of tape reels 2,
3, and the tape 4 pulled out from one tape reel 2 passes through tape guides 6, 6 provided at the left and right tape outlet 5, and then passes through the tape loading pocket provided on the front of the case. After crossing the front of the tape 7, it is wound onto the other tape reel 3. .

In order to protect this tape 4 when not in use, there is a pocket 7.
The upper and lower opening surfaces of the tape 4 are covered by the slide frame 9.
The outside is covered with a front lid 10.

In FIG. 3, the slide frame 9 is formed into a rectangular frame shape with upper and lower walls 12 and 13 and left and right side walls 14 and 15 facing each other. It is assembled so that it fits externally into the section 16. Sliding shafts 17, 17 are provided on the inner surfaces of the left and right side walls 14, 15 in a protruding manner so as to face each other.

This is supported so as to be slidable back and forth in a guide groove 18 provided between the joint surfaces of the upper and lower cases la-1'-b. and,
It has a spring member 19 made of a torsion coil spring.

One end of this acts on the sliding shaft 17 to urge the slide frame 9 to slide into the closed position. The other end of this spring member 19 is hooked to a partition wall 20 provided in the lower case 1b as shown in FIG.

The front cover 10 is formed into a plate shape that covers the front surface of the case between the left and right sides, and a shaft 22 protruding from the upper part of the left and right ends thereof is inserted into a shaft hole provided near the upper end of the left and right side walls 14 and 15 of the slide frame 9. A front cover 10 is pivotally connected to the slide frame 9 so as to be rotatable in the vertical direction. The sliding shaft 17
A lid closing spring 24 made of a tension coil spring is hooked to a spring stopper 23 provided on the inner surface of the front lid 10, thereby constantly urging the front lid 10 to rotate in the closed position.

In FIG. 4, a locking member 26 for locking and holding the front cover 10 in the closed position is attached to the right side wall 1 of the slide frame 9.
5 and the front side wall of the main body case 1.

In FIG. 4, this locking member 26 includes a locking arm 27 that engages with a retaining piece 10a protruding from the inner surface of the front lid 10;
The release arm 28 with which the release operation member P on the deck side comes into contact is integrally formed in a bifurcated shape, and the right side wall 1 of the slide frame 9
It is supported by a shaft 29 protruding from the inner surface of 5 so as to be swingable back and forth. A lock spring 30, which is a torsion coil spring fitted to the shaft 29, always urges the lock member 26 to swing in a clockwise locking position. Also.

The range of swing of the locking member 26 is regulated by regulating protrusions 31 and 32 protruding from the right side wall 15.

The lower wall 13 of the slide frame 9 is provided with a release groove 34 in a portion close to the right side wall 15 to allow the release operation member P on the deck side to enter from the front side.

When the front cover 10 is in the closed position as shown in FIG.
8 faces the middle part of the release groove 34.

Prior to the opening operation of the slide frame 9 by the release operation member P, the lock member 26 is operated to unlock by the release operation member P.

In FIG. 5, in order to prevent the tape from loosening when not in use, a tape presser 35 is provided at the back inside the case near the tape outlet 5 on the right. This tape presser 35 has an arm 37 that horizontally swings around a shaft 36 and a pressing pin 38 that projects upward from the tip of this arm 37.
A passive pin 39 for posture switching is provided protruding from the lower surface of the holder. When the slide frame 9 is in the front closed position, the pressing pin 38 is in circumscribed contact with the tape guide 6 with the tape 4 interposed therebetween.

When the slide frame 9 is opened rearward and operated, the tape guide 6
5 and evacuate from the tape outlet path as shown by the imaginary line in FIG. This attitude switching is performed using the opening/closing operation of the slide frame 9. Specifically, a groove 40 long in the longitudinal direction is formed in the lower wall 13 of the slide frame 9 facing the driven pin 39.
has been formed.

When the slide frame 9 opens and moves, the front end of the groove 40 comes into contact with the driven pin 39 near the end of its stroke.
Swing the arm 37 toward the rear of the case. Conversely, when the slide frame 9 closes and moves, the rear end of the groove 40 is connected to the driven pin 3.
9 and swing the arm 37 toward the front of the case.

Next, the operation of the tape protection mechanism will be explained.

When not in use, the sliding shaft 17 of the sliding frame 9 is in contact with the front end of the guide groove 18 on the main body case l side (
(FIG. 4), in this state, the upper and lower walls 12 and 13 close the upper and lower opening surfaces of the pocket 7.

Also, the front cover 10 is in a position to cover the outside of the tape 4.

It is locked and held by a lock member 26 so that it cannot be opened.

When the tape cartridge is loaded on the deck, the release operation member P enters into the release groove 34 of the slide frame 9, and swings the lock member 26 toward the rear of the case against the lock spring 30, as shown in FIG.

While maintaining this state, the slide frame 9 is moved toward the rear of the case by coming into contact with the inner end of the release groove 34. As the slide frame 9 moves, the front cover 10 also tries to move, but its upper inner surface immediately comes into contact with the upper edge wall 5a of the tape outlet 5, so the front cover 10 closes around the shaft 22. It rotates upward while resisting the spring 24, and quickly climbs onto the outer wall surface of the sliding portion 16 of the main body case 1, as shown in FIG. 6, and then the slide frame 9 is operated to fully open. In this state, as shown by the imaginary line, the tape 4 is in a retracted position above the pull-out area.

Due to the ejecting operation, the release operation member P is relatively moved toward the front of the case, and the slide frame 9 is moved by the spring member 19.
The case is pushed back to the front, and the front lid 10 also moves forward along with the slide frame 9 while swinging back downward by the lid closing spring 24. After the slide frame 9 and the front lid 10 completely return to the closed position, the locking member 26 engages with the engagement piece 27 of the front lid 10 and returns to the locked position.

[Another embodiment example]

In the above peeling, the slide frame 9 was formed into a square frame shape, but this is not necessarily necessary. For example, when the top side of the pocket 7 is completely covered by the top wall of the upper case 1a, the top wall 12 of the slide frame 9 is omitted, and a lip for hooking is protruded from the top of the left and right side walls 14 and 15 in an opposing manner. The slide frame 9 may be supported by the ribs and the slide shaft 17 in such a way that it cannot be removed.

Spring member 19. Lid closing spring 24. The lock spring 30 can also be replaced with other forms such as a leaf spring.

The front lid 10 does not need to be opened automatically in conjunction with the backward sliding movement of the slide frame 9, and may be opened upward by another member on the deck side after the lock is released.

〔Effect of the invention〕

According to the present invention, the slide frame 9 that closes the opening surface of the tape loading pocket 7 is attached to the main body case 1 so as to be slidable back and forth, and the front lid 10 that covers the outside of the tape 4 that can be led out to the front of the case is attached. It is simply pivoted to the slide frame 9 so that it can be rotated to open and close, and locked in the closed position.

Therefore, the structure is simpler than the conventional example.

The operation of the slide frame 9 and the front cover 10 is also reliable.

It can also be made to have excellent assembly workability.

While the highly rigid slide frame 9 covers the machining/nozzle side of the tape 4, the front cover 10 covers the outer surface of the tape, and the front lN
10 can be locked and held in the closed position by the locking member 26, so that the tape can be securely protected when not in use.

In particular, a preferred embodiment of the present invention is such that when sliding the slide frame 9 with the release operation member P on the deck side, the locking member 26 of the front lid 10 is automatically unlocked and the front lid 10 is opened at the same time. According to the form.

There is no need to provide a separate member to open and operate the front 1 [10] on the deck side, and by simply inserting the tape cartridge horizontally into the holder of the deck, the tape 4 will be in a standby state where it can be pulled out to the front of the case. This is also advantageous in simplifying the tape loading mechanism.

[Brief explanation of drawings]

1 to 6 show embodiments of tape cartridges according to the present invention. Figure 1 is a vertical sectional side view of the main part. Figure 2 is an internal plan view. FIG. 3 is an exploded perspective view of the constituent members of the present invention. FIG. 4 is a sectional view taken along line A-A in FIG. 2. Figure 5 is a plan view of the main parts. FIG. 6 is a vertical sectional side view corresponding to FIG. 4 showing the operating state. 1... Main body case. 7. Pocket. 9...Sliding frame. 10... Front lid. 17...Sliding shaft. 18... Guide groove. 22... Axis. 24...Lid closing spring. 26...Lock member. 34...Release groove. P...Release operation member.

Claims (3)

[Claims] (1) Slide frame 9 for opening and closing pocket 7 for tape loading provided on the front of main case 1
is mounted so as to be slidable in the front and back direction, and a front cover 10 for covering the outside of the front surface of the tape 4 led out to the front surface of the main body case 1 is pivoted to the slide frame 9 so as to be operable to open and close. A tape cartridge characterized in that a lock member 26 for locking and holding the front lid 10 in a closed position is provided on the slide frame 9. (2) The tape cartridge according to claim 1, wherein the front lid 10 opens and closes in conjunction with the opening and closing operations of the pocket 7 by sliding the slide frame 9 back and forth. (3) The locking member 26 of the front cover 10 is switched to the unlocking position by the deck-side release operating member P that slides the slide frame 9 backward. tape cartridge.