JPH0543376U - Tape cartridge - Google Patents

Abstract

(57) [Abstract] [Purpose] In a tape cartridge in which the rear wall of the main body case is covered with a transparent panel that covers the index card, the conventional compact cassette in which the rear wall of the main body case itself is provided with an erroneous erasure prevention tab Make it compatible. [Structure] From the outer surface of the upper surface wall 5 of the main body case 1 to the rear surface wall 1
A transparent panel 19 covering the index card 16 is attached over 5. A notch 20 is provided in a part of the rear panel portion 19b of the transparent panel 19. This notch 20
In addition, an erroneous erasure prevention claw 21 that can be opened and closed is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a tape cartridge having an accidental erasure prevention claw, and improves the installation method of the accidental erasure prevention claw.

[0002]

[Prior Art]

 Recently, this type of tape cartridge is different from conventional analog compact cassettes in which drive shaft insertion holes are formed through both upper and lower sides of the main body case. There is proposed a digital compact cassette (DCC) in which the main body case is opened on the lower surface wall, but the upper surface wall does not have a drive shaft insertion hole (JP-A-3-44857). Since there is no drive shaft insertion hole in the top wall of the case, it is used as a space for the title label from almost the entire top wall to the back wall. In this case, if the title label is attached to the outer surface of the body case in an exposed state, the written characters may be rubbed with a finger or the like and become thin or erased with long-term use. Especially in a high temperature environment such as in a car in the summer, the title label is likely to be lifted or peeled off, which may cause troubles when putting it in or out of the player. Therefore, it has been proposed to cover the title label with a transparent panel on the outer surface of the main body case (literature unknown).

[0003]

[Problems to be solved by the device]

 However, if a transparent panel is attached from the top wall to the back wall of the main body case, it will not be possible to provide erroneous erasure prevention claws on the rear surface wall of conventional compact cassettes, and compatibility with compact cassettes will not be possible. It causes such disadvantages. On the other hand, if a mistaken erasure prevention claw is provided on the rear surface wall like the conventional compact cassette and the transparent panel is attached to the rear surface wall to avoid the erroneous erasure prevention claw, it becomes difficult to attach the transparent panel. , Its shape also becomes complicated. The purpose of the present invention is to solve these problems and to make it possible to easily install the erroneous erasure prevention claw on the rear surface side even when the transparent panel covering the index card is mounted from the top wall to the rear wall of the main body case. is there.

[0004]

[Means for Solving the Problems]

 The present invention is a tape cartridge in which a transparent panel 19 covering an index card 16 is attached from the outer surface of the upper surface wall 5 to the outer surface of the rear surface wall 15 of the main body case 1 as shown in the figure. A notch portion 20 is provided in a part of a rear panel portion 19b that covers 15 and an erroneous erasure prevention claw 21 is provided in the notch portion 20 so that the notch portion 20 can be opened and closed.

[0005]

[Action]

 Since the index card 16 is covered with the transparent panel 19, it is possible to prevent external damage, stains, thinning and disappearance of characters. Recording on the tape 6 is enabled or disabled by the player detecting whether the notch 20 is closed or opened by the accidental erasure prevention claw 21.

[0006]

[Effect of the device]

 According to the present invention, a simple means is provided in which a notch 20 provided in a part of the rear panel portion 19b that covers the rear wall 15 of the transparent panel 19 is provided with an erroneous erasure prevention claw 21 that can be opened and closed. Even in a tape cartridge in which the rear wall 15 of the main body case 1 is covered with the transparent panel 19, the rear surface side of the tape cartridge can be provided with an erroneous erasure prevention function in the same manner as the conventional compact cassette, and is compatible with the compact cassette. It is possible to have it, which is advantageous.

[0007]

【Example】

 The drawing shows an embodiment applied to a digital compact cassette (DCC). The basic form of this tape cartridge is substantially the same as that of the analog type compact cassettes used so far. In FIGS. 3 and 4, the main body case 1 is formed by abutting upper and lower plastic cases 1a and 1b, which are integrally connected. A drive shaft insertion hole 4 is opened in the lower surface wall 3 of the lower case 1b to the left and right of the central portion thereof, but the upper surface wall 5 of the upper case 1a is a blind wall state having no drive shaft insertion hole 4. In the main body case 1, a hub 7 around which a tape 6 is wound on each drive shaft insertion hole 4 is rotatably accommodated and arranged. The tape 6 is unwound from one hub 7 and is wound around the other hub 7 via guide rollers 9 arranged on the left and right of the front surface side in the main body case 1. A head insertion window 11 for digital recording / playback is opened at the center of the front wall 10 of the main body case 1 facing the tape running path between the left and right guide rollers 9, and the pinch rollers are provided on the left and right thereof. The insertion window 12 is open.

Since DCC is high-density recording, the drive shaft insertion hole 4 of the lower surface wall 3 and the insertion windows 11 and 12 of the front surface wall 10 are closed by a slide type shutter 14 when not in use, like the DAT. The tape 6 is protected from dust and scratches. The shutter 14 is made of a stainless steel plate or the like and has a U-shaped cross section. The bottom plate 14 a is located on the outer surface side of the lower surface wall 3, the front plate 14 b is located on the outer surface side of the front surface wall 10, and the front end of the upper surface wall 5. The upper plate 14c located on the side is integrally formed, and the drive shaft insertion hole 4 and the insertion windows 11 and 12 are simultaneously closed with respect to the main body case 1 (see FIG. 3) and the open position (see FIG. (See 4) and is slidably installed in the left-right direction.

In FIGS. 1 and 2, almost the entire outer surface of the upper surface wall 5 of the body case 1 and substantially the entire outer surface of the rear surface wall 15 are used as a space for accommodating the index card 16. Recesses 17 and 18 for accommodating the index card 16 bent in an L-shaped cross section from substantially the entire outer surface of the upper surface wall 5 to substantially the entire outer surface of the rear surface wall 15 are formed to communicate with each other. -A transparent panel 19 covering the index card 16 is attached to 18. The transparent panel 19 is made of hard transparent plastic and has an L-shaped cross section, and is fitted into the recess 17 of the top wall 5 and the top panel part 19a is fitted into the recess 18 of the back wall 15. And 19b are integrally formed. The rear panel portion 19b is provided with a cutout portion 20 near the right and left ends thereof, and an erroneous erasure prevention claw 21 for closing the cutout portion 20 is formed integrally with the rear panel portion 19b. The part that connects to is formed so that it can be broken off. FIG. 5 shows a state in which the notch 20 is opened by breaking off the erroneous erasure prevention claw 21, that is, a state in which recording is impossible.

The transparent panel 19 may be detachably attached to the body case 1. Further, as shown in FIG. 6, the erroneous erasure prevention claw 21 is formed separately from the rear panel portion 19b, and is detachably attached to the notch 20 provided in the rear panel portion 19b. Good.

[Brief description of drawings]

FIG. 1 is a perspective view seen from the back side.

FIG. 2 is a perspective view showing a state in which a transparent panel and an index card are separated.

FIG. 3 is a perspective view of a state in which a shutter is closed, viewed from the front side.

FIG. 4 is a perspective view of a state in which a shutter is opened, viewed from the bottom side.

FIG. 5 is a perspective view showing a state in which an erroneous erasure prevention claw of the transparent panel is broken off.

FIG. 6 is a perspective view showing another embodiment.

[Explanation of symbols]

 1 Main body case 5 Top wall 6 Tape 7 Hub 15 Rear wall 16 Index card 19 Transparent panel 20 Cutout 21 Erase prevention nail

Claims (1)

[Scope of utility model registration request] 1. A transparent panel 19 covering the index card 16 is attached from the outer surface of the upper surface wall 5 of the main body case 1 to the outer surface of the rear surface wall 15, and a rear surface panel portion 19 covering the rear surface wall 15 of the transparent panel 19 is attached.
A notch portion 20 is provided in a part of b, and the erroneous erasure prevention claw 2 that can open and close the notch portion 20.
1. A tape cartridge, wherein the tape cartridge 1 is provided.