JPH01124178A - Tape cartridge - Google Patents

Abstract

PURPOSE:To make it possible to switch a display body from any side out of upper and lower faces of a body case by rotating an upper piece from the external through an upper face side operation port and rotating a lower piece through a lower face side operation port. CONSTITUTION:The information discriminating display body 9 is cylindrically formed and arranged so as to be rotated around the vertical axis 28 of the body case 1. Various kinds of discrimination display contents are successively arrayed at prescribed intervals in the circunmferential direction so as to opposed to a display window 37. Since the display contents can be switched only by rotating the display body at the fixed position, the setting space of the display body 9 can be reduced. Since respective operation ports 40, 39 are formed on the upper and lower faces of the case so that the upper piece 11 of the display body 9 is opposed to the upper face side operation port 40 and the lower piece 10 is opposed to the lower face side operation port 39, the display body 9 can be rotated from any side out of the upper and lower face sides of the case 1 and the display contents can be conveniently switched.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a tape cartridge incorporating an indicator for identifying the type of recording method, etc., and is an improvement to the indicator. .

[Conventional technology]

FIG. 5 shows an example of a conventional tape cartridge, specifically an 8 mm video tape cartridge, in which a display window 41 is opened at one end in the left and right direction of the rear wall 36 of the two-body case 1, and a display window 41 is displayed inside the display window 41. and a recordable display position where the erroneous erasure prevention valve 42 opens the display window 41 as a body.

It is built in such a way that it can be slid in the left-right direction across the non-rerecordable display position (erasure prevention position) where the display window 41 is closed.

[Problem that the invention seeks to solve]

For some types of tape cartridges for business use, it is desirable to have two or more types of display methods used to identify the recording method, and to be able to switch and operate the display contents from either the top or bottom surface of the main body case 1. has been done.

However, since the conventional display body, the accidental erasure prevention valve 42, has a flat plate shape and operates in a linear sliding manner, there is also a constraint on the space for its installation, so it is impossible to meet the above requirements. The current situation is that there is no such thing.

The present invention has been proposed in response to such a demand, and an object of the present invention is to enrich the content of identification displays by making it possible to display two or more types of identification on one display.

SUMMARY OF THE INVENTION An object of the present invention is to improve operability by making it possible to switch the 9 display from either the top or bottom of the main body case.

[Means for solving problems]

In this invention, a display body 9 incorporated into a main body case 1 for information identification is formed into a cylindrical shape, and is rotatable around a vertical axis 28. A part of the circumference of the display body 9 faces a display window 37 opened in a part of the main body case 1, so that it can be seen from outside the case. Incidentally, the term "1 cylindrical display body 9" means that it is sufficient that the outer circumferential side surface of the rotating area facing the 2 display windows 37 is formed at least into a cylindrical surface.

The two display bodies 9 are made up of an upper piece 11 and a lower piece 10, and both 11 and 10 are coupled so that they can rotate integrally. Operation ports 40 and 39 are provided on the top and bottom surfaces of the main body case 1, respectively.

The upper piece 11 can be rotated from the outside through the operation port 40 on the top side, and the lower piece 10 can also be rotated through the operation port 3 on the bottom side.
Rotation operation can be performed from the outside via 9.

- [Effects of the Invention] According to the present invention configured as described above, the display body 9 for information identification is formed in a cylindrical shape, and is installed in the main body case 1 so as to be freely rotatable around the vertical axis 28. Therefore, on the two cylindrical display bodies 9, various kinds of identification display contents can be arranged side by side at predetermined intervals in the circumferential direction so as to face the display window 37 one after another. Moreover, in order to switch the display contents, it is only necessary to rotate the two display bodies 9 in a fixed position, so the installation space can be reduced. It is advantageous that a wide variety of information identification contents can be displayed.

Further, in the present invention, operation ports 40 and 39 are provided on the upper and lower surfaces of the two-body case 1, respectively, and the upper piece 1 of the display body 9
1 faces the operation port 40 on the top side.

Further, since the lower piece 10 faces the operation port 39 on the lower surface side, the display body 9 can be rotated from either the upper surface or the lower surface of the main body case 1, and the display contents can be conveniently changed.

In addition, the display body 9 is divided into two pieces, upper and lower pieces 11 and 1.
0, and each piece 11 and 10 can be plastic-molded with the wall thickness as uniform as possible, so it is possible to make the wall thickness thicker (in the part where it is thicker), which tends to occur when the 9 display body 9 is integrally molded. Prevents molding defects such as sink marks.

It is advantageous that a display body 9 with high dimensional accuracy can be obtained.

(Embodiment) FIGS. 1 to 4 show an embodiment of a tape cartridge according to the present invention.

In Fig. 2, upper and lower plastic cases 1a and 1
Reels 3, on which the tape 2 is wound, are rotatably housed on the left and right inside of the main body case 1 formed by butting the tape 2 against each other. The tape 2 is fed out from one reel 3 and placed in a tape loading pocket (
(not shown) and then wound onto the other glue 3. Tape 2 drawn out to the front side of the case is used when not in use.

Front and rear lids 5 are pivotally attached to the front side of the main body case 1 so that they can be opened and closed.
・It is covered and protected by sandwiching its front and rear surfaces at 6.

A display 9 for identifying the recording method is incorporated in the rear right corner 8 of the main body case 1.

In FIG. 1 and FIG. 4, this display body 9 is.

It consists of two pieces, a lower piece 10 molded separately and an upper piece 11 integrally connected to the upper end of the lower piece 10.

The lower piece 10 is a plastic molded product formed in the shape of a double cylinder with a bottom, and has inner and outer cylinders 12 and 13 and a cylinder bottom 14 integrally provided at the bottom thereof.

In FIG. 3, the outer circumferential surface of the outer cylinder 13 has four types of identification displays 15a, 15b, 15c, and 4 different colors for users.
Apply 15d. Between the outer cylinder 13 and the inner cylinder 12 in the cylinder bottom 14, three detection holes 16a, 16b, and 16c are opened at a predetermined angle in the circumferential direction. The zero angle between the detection holes 16a and 16b is 60 degrees, and the angle θ between the detection holes 16a and 16c
2 was set at 120 degrees. In addition, as shown in Fig. 1, the cylinder bottom 1
At the center of the lower surface of 4, there is provided an operating protrusion 18 projecting downward, which has an operating groove 17 that can be engaged with a minus or plus type screwdriver.

In FIGS. 1 and 4, the upper piece 11 is a plastic molded product formed in the shape of a cylinder with a bottom.
9 and an upper cylinder bottom 20 integrally provided therewith. Cylinder 1
Two notches 21 and 21 are made in a part of the circumference of 9 in the vertical axis direction from the lower end, and an elastic arm 22 is inserted between these notches 21 and 21.
are formed into one. The elastic arm 22 is elastically deformable in the radial direction using a base 22a connected to the barrel 19 as a fulcrum.

A positioning convex portion 23 is provided at the tip of the elastic arm 22 to protrude outward. At the center of the upper surface of the upper cylinder bottom 20, an operating protrusion 25 having an operating groove 24 in which a driver engages is provided to protrude upward.

In FIGS. 1 and 3, the upper piece 11 is the cylinder body 1.
9 is fitted to the outer circumference of the upper end of the inner cylinder 12 of the lower piece 10, a key-shaped protrusion 26 is provided in the axial direction on one of the cylinder body 19 or the inner cylinder 12, and a groove 27 into which the protrusion 26 fits is provided on the other side. Both the upper piece 11 and the lower piece 10 are integrally connected. In addition.

For the connection of the upper and lower pieces 10 and 11, other adhesive methods, press-fitting methods, etc. can be arbitrarily selected.

In short, the assembly may be performed in any manner as long as the upper and lower pieces 10 and 11 rotate together in a state.

After molding the upper and lower pieces 11 and 10 separately, 9
When the display body 9 is made by integrally combining both, it is possible to achieve high dimensional accuracy without sink marks. This is due to the following reasons. For example, as shown in FIG. 6, it is advantageous in terms of the molding process if the entire display body 9 is integrally molded from plastic. However, the part P corresponding to the inner cylinder 12 at the center of the lower piece 10 must be formed into a solid shape, which causes sink marks on the upper and lower end surfaces of the solid part P (where the operating grooves 24 and 17 are provided). This causes dents and makes it difficult to obtain high dimensional accuracy. However, it is impossible to form the portion P into a hollow shape.

The rear right corner 8 inside the main body case 1 has a vertical shaft 28 for rotatably supporting the display 9. This vertical axis 28 is the first
As shown in FIG. 4, there is an upper vertical shaft 30 with an inner and outer double cylinder structure projecting downward from the inner surface of the case top wall 29 at the corner 8, and a cylindrical shape projecting upward from the case bottom wall 31. It consists of a lower vertical axis 32.

In FIG. 1, the outer cylinder 30a of the upper vertical axis 30 is the display body 9.
The outer cylinder 13 of the lower piece 10 and the cylinder body 1 of the upper piece 11
9. Further, the lower vertical shaft 32 fits into the inner periphery of the lower end of the inner tube 12 of the lower piece 10 of the display body 9 . Furthermore, the inner cylinder 30b of the upper vertical shaft 30 is the upper piece 1 of the display body 9.
It fits into the inner periphery of the upper end of the cylinder body 19 of No. 1.

In FIG. 3, the inner circumferential surface of the outer cylinder 30a of the upper vertical shaft 30 has six positioning recesses 34a, 34b, and 34b extending in the axial direction.
34c, 34d, 34e, 34f at equal intervals in the circumferential direction (
They are provided every 60 degrees).

These positioning recesses 34a, 34b, 34C, 34d, 3
The positioning convex portion 23 of the elastic arm 22 of the display body 9 selectively engages with either 4e or 34f.

In FIG. 1, a cutout 35 for letting the elastic arm 22 escape is provided in a part of the circumference of the inner cylinder 12 of the lower piece 10.

In Figures 3 and 4, the right corner 8 of the main body case 1
A display window 37 is opened near the right end of the rear wall 36, and an identification display 1 on the circumference of the display body 9 is displayed in the display window 37.
Any one of 5a, 15b, 15c, and 15d will selectively appear. In addition, the case bottom wall 31 at the case right corner 8
There are two detection holes 38 through which the detection member on the deck side enters and exits.
a and 38b are opened, and these detection holes 38a and 38b
The angle α between them was 60 degrees. Further, as shown in FIG. 1, a display 9 is provided inside the lower vertical shaft 32 of the case bottom wall 31.
An operation port 39 facing the operation protrusion 18 at the bottom of the case is opened, and an operation port 40 facing the operation protrusion 25 at the top of the display body 9 is also opened inside the inner cylinder 30b of the upper vertical shaft 30 of the case upper wall 29. did.

Now, when a screwdriver is inserted into the operation groove 24 or 17 from the operation port 40 on the top surface of the main body case 1 or the operation port 39 on the bottom surface and the display body 9 is rotated clockwise or counterclockwise at 60 degree intervals, 3. detection holes 16a, 16b, 16
The two detection holes 38a and 38b in the case bottom wall 31 are opened and closed by the cylinder bottom 14 having a diameter c. The opening/closing modes are four types of combinations shown in the following table.

On the outer peripheral surface of the outer cylinder 13 of the display body 9 facing the front display window 37, there is an identification mark 15 in different colors to identify the above-mentioned four types of recording methods.
A15b15c and 15d are applied. That is, the 2nd display body 9 has a red color 15a on a part of the circumferential surface of the outer cylinder 13 facing the display window 37 at a rotation angle position indicating the above-mentioned A recording method.
9, for example, blue color 15b, on a part of the circumferential surface of the outer cylinder 13 facing the display window 37 at the rotational angle position indicating the B recording method; 9, for example, yellow 15c on a part of the circumference.

A portion of the circumferential surface of the outer cylinder 13 facing the display window 37 at a rotation angle position indicating the D recording method is painted with a color 2, for example, a green color 15d. The user can visually recognize this from the display window 37.

[Brief explanation of the drawing]

1 to 4 show an embodiment of a tape cartridge according to the present invention. Figure 1 is in Figure 3! -1 line sectional view. FIG. 2 is an internal plan view partially cut away. FIG. 3 is a sectional view taken along the line ■-■ in FIG. 1. FIG. 4 is an exploded perspective view of the display body. FIG. 5 is a partially cutaway internal plan view showing a conventional tape cartridge. FIG. 6 is a longitudinal sectional view of a display body showing a comparative example with the present invention. 1... Main body case. 9...Display body. 10...Lower piece. 11... Upper piece. 17・24・・Operation groove. 28... Vertical axis. 37...Display window. 39.40...Operation port. Inventor Haru Hayashi
High Figure 6 Figure 3 Figure 4

Claims (1)

[Claims] A display window 37 is opened in a part of the main body case 1, and a cylindrical information identification display body 9 is placed inside the main body case 1, with a part of its circumference extending through the display window. The display body 9 is assembled so as to be rotatable around the vertical axis 28 so as to face the display body 37, and the display body 9 is connected to the upper piece 11 formed separately.
and a lower piece 10 are coupled together so that they can rotate together, and operation ports 40 and 39 are provided on the upper and lower surfaces of the main body case 1 corresponding to the vertical direction of the display 9, respectively. A tape cartridge characterized in that the piece 11 can be rotated from the outside through an operation port 40 on the top side, and the lower piece 10 can be rotated from the outside through an operation port 39 on the bottom side.