JPH0814957B2 - Tape cartridge - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a tape cartridge in which a display body for identifying the type of recording system is incorporated, and the display body is improved. .

[Conventional technology]

FIG. 5 exemplifies a conventional tape cartridge, specifically, for 8 mm video. A display window 41 is opened at one end of the rear wall 36 of the main body case 1 in the left-right direction, and a display is made inside the display window 41. As a body, the erroneous erasure prevention valve 42 is slidably incorporated in the left-right direction between a recordable display position where the display window 41 is opened and a non-rerecordable display position where the display window 41 is closed (erasure prevention position). .

[Problems to be solved by the invention]

For some types of commercial tape cartridges, for example, two or more types of indication methods are used to identify the recording method,
Further, it is desired that display contents can be switched and operated from both the upper surface and the lower surface of the main body case 1.

However, since the conventional erroneous erasure prevention valve 42, which is a display body, has a flat plate shape and a linear slide type operation mode, there are some restrictions on the installation space, and the above requirements can be fully met. The current situation is that there are none.

The present invention has been proposed in order to meet such a demand, and an object thereof is to enable two or more types of multi-type identification display on one display body and to enrich the content of the identification display.

An object of the present invention is to improve the operability by enabling the switching operation of the display body to be performed from either the upper surface or the lower surface of the main body case.

[Means for solving problems]

According to the present invention, the display body 9 incorporated in the main body case 1 for identifying information is formed in a cylindrical shape and is rotatable about the vertical axis 28. A part of the circumference of the display body 9 is seen from the outside of the case with a display window 37 opened in a part of the body case 1. The cylindrical display 9 is
This means that it is sufficient if the outer peripheral side surface of the rotating region facing the display window 37 is formed at least as a cylindrical surface.

The display body 9 is composed of an upper piece 11 and a lower piece 10, both of which are connected so as to rotate integrally. Operation ports 40 and 39 are provided on the upper surface and the lower surface of the main body case 1, respectively, so that the upper piece 11 can be rotated from the outside through the operation port 40 on the upper surface side, and the lower piece 10 can also be operated via the operation port 39 on the lower surface side. It can be rotated from the outside.

〔The invention's effect〕

According to the present invention configured as described above, the display body 9 for identifying information is formed in a cylindrical shape, and the display body 9 is installed in the main body case 1 so as to be rotatable around the vertical axis 28. Various identification display contents can be arranged side by side on the body 9 at predetermined intervals in the circumferential direction so as to sequentially face the display window 37. Moreover, when switching the display contents, it is sufficient to rotate the display body 9 at a fixed position, so that the installation space is small. That is, it is advantageous that a large number of types of information identification contents can be displayed on one display body 9 even in a narrow space in the main body case 1.

Further, in the present invention, operation ports 40 and 39 are provided on the upper surface and the lower surface of the main body case 1, respectively, and the upper piece 11 of the display body 9 faces the operation port 40 on the upper surface side and the lower piece 10 controls the operation port 39 on the lower surface side. The display 9 can be rotated from either the upper surface or the lower surface of the main body case 1, so that the display contents can be switched conveniently.

Also, the display body 9 is divided into two parts, the upper and lower pieces 11 and 10.
Since each piece 11 and 10 can be plastic molded with the wall thickness as uniform as possible,
Display body 9 This is advantageous in that it is possible to prevent a molding defect such as a sink mark at a portion where the wall thickness is increased, which is likely to occur when the entire display body 9 is integrally molded, and to obtain the display body 9 with high dimensional accuracy.

〔Example〕

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 1b
The reels 3 around which the tape 2 is wound are rotatably accommodated and arranged on the left and right sides of the main body case 1 formed by butting. The tape 2 is unwound from one reel 3, passes through a tape loading pocket (not shown) on the front side of the main body case 1, and is then wound on the other reel 3. When not in use, the tape 2 led out to the front side of the case is covered and protected by front and rear lids 5 and 6 pivotally attached to the front side of the main body case 1 so as to be sandwiched between the front and rear sides.

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

In FIG. 1 and FIG. 4, the display body 9 is composed of a two-piece, a lower piece 10 molded separately and an upper piece 11 integrally coupled to the upper end thereof.

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

In FIG. 3, the outer peripheral surface of the outer cylinder 13 is provided with four different kinds of identification marks 15a, 15b, 15c, 15d for the user. Three detection holes are provided between the outer cylinder 13 and the inner cylinder 12 on the cylinder bottom 14.
16a, 16b, 16c are opened at a predetermined angle in the circumferential direction. The angle Θ ₁ between the detection holes 16a and 16b is 60 degrees,
The angle Θ ₂ between 6c was 120 degrees. Further, as shown in FIG. 1, an operating projection 18 having an operating groove 17 for engaging a minus or plus type driver is provided in the center of the lower surface of the cylinder bottom 14.
Project downwards.

In FIG. 1 and FIG. 4, the upper piece 11 is a plastic molded product formed in a bottomed cylindrical shape, and has a cylindrical body 19
And an upper cylinder bottom 20 provided integrally therewith. Two notches 21 and 21 are made in the longitudinal direction from the lower end in a part of the circumference of the cylinder body 19, and an elastic arm 22 is integrally formed between the notches 21 and 21. The elastic arm 22 is elastically deformable in the radial direction with the base 22a connected to the barrel 19 as a fulcrum. A positioning projection 23 is provided on the tip of the elastic arm 22 so as to project outward. Upper cylinder bottom 20
An operation protrusion 25 having an operation groove 24 engaged by a driver is provided in the center of the upper surface of the above so as to project upward.

In FIGS. 1 and 3, the upper piece 11 is a cylinder 19
Is fitted to the outer periphery of the upper end of the inner cylinder 12 of the lower piece 10, and one of the barrel 19 or the inner cylinder 12 is provided with a key-shaped projection 26 in the axial direction, and the other is provided with a groove 27 into which the projection 26 is fitted. Both the upper piece 11 and the lower piece 10 are integrally connected. In addition, regarding the connection of the upper and lower pieces 10 and 11, other bonding method, press fitting method, or the like can be arbitrarily selected. The point is that the upper and lower pieces 10 and 11 can be integrally rotated in the assembled state.

After the upper and lower pieces 11 and 10 are molded separately, the display body 9 in which the upper and lower pieces 11 and 10 are integrally joined together has high dimensional accuracy without sink marks. This is for the following reasons. For example, as shown in FIG. 6, if the entire display body 9 is integrally plastic-molded, it is advantageous in the molding process. However, the portion P corresponding to the inner cylinder 12 at the center of the lower piece 10 must be molded into a solid shape, and therefore, sink marks occur on the upper and lower end surfaces of the solid portion P (where the operation grooves 24 and 17 are provided). As a result, it becomes difficult to obtain high dimensional accuracy. This is because it is impossible to form the above-mentioned location P into a hollow shape.

At the rear right corner 8 in the main body case 1, there is provided a vertical axis 28 for rotatably supporting the display body 9. As shown in FIGS. 1 and 4, the vertical axis 28 is an upper vertical axis 30 of an inner-outer double-barrel structure projecting downward from the inner surface of the case upper wall 29 at the corner 8 and the case bottom wall 31. And a cylindrical lower longitudinal axis 32 projecting upward from.

In FIG. 1, the outer cylinder 30a of the upper vertical axis 30 is fitted between the outer cylinder 13 of the lower piece 10 and the barrel 19 of the upper piece 11 of the display body 9. The lower vertical axis 32 is fitted to the inner circumference of the lower end of the inner cylinder 12 of the lower piece 10 of the display body 9. Further, the inner cylinder 30b of the upper vertical axis 30 is fitted to the inner circumference of the upper end of the cylinder body 19 of the upper piece 11 of the display body 9.

In FIG. 3, six positioning recesses 34a, 34b, 34c, 3 running in the axial direction are formed on the inner peripheral surface of the outer cylinder 30a of the upper vertical axis 30.
4d · 34e · 34f are provided at equal intervals (60 degrees) in the circumferential direction, and these positioning recesses 34a · 34b · 34c · 34d · 34e · 34f
Positioning protrusion 23 of the elastic arm 22 of the display body 9
Selectively engage and engage.

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

In FIGS. 3 and 4, a display window 37 is opened near the right end of the back wall 36 at the right corner 8 of the main body case 1, and an identification display 15a on the peripheral surface of the display body 9 is provided in the display window 37.・ 1
Any one of 5b, 15c and 15d faces selectively. The case bottom wall 31 in the right corner 8 of the case has two detection holes 38a and 38b through which the deck-side detection member goes in and out, and the angle α between the detection holes 38a and 38b is 60 degrees. . Further, as shown in FIG. 1, inside the lower vertical axis 32 of the bottom wall 31 of the case, an operating port 39 facing the operating projection 18 of the lower part of the display body 9 is opened, and the upper vertical axis of the upper wall 29 of the case 29 is opened. An operation port 40, which the operation protrusion 25 at the upper part of the display body 9 faces, is also opened inside the inner cylinder 30b of 30.

Now, when a driver is inserted into the operation groove 24 or 17 from the operation port 40 on the upper surface of the body case 1 or the operation port 39 on the lower surface and the display body 9 is rotated clockwise or counterclockwise at intervals of 60 degrees, 3 The two detection holes 38a, 38b of the case bottom wall 31 are opened and closed by the cylinder bottom 14 having the detection holes 16a, 16b, 16c. The opening and 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 display window 37, in order to identify the above four types of recording methods, different color identification indicators 15a.
It is decorated with 5b, 15c and 15d. That is, for example, red 15a is displayed on a part of the peripheral surface of the outer cylinder 13 facing the display window 37 at the rotation angle position indicating the A recording method, and the display window 37 is displayed at the rotation angle position indicating the B recording method. A part of the peripheral surface of the outer cylinder 13 facing the display window 37 at a rotation angle position indicating the C recording method, for example, a blue color 15b, on a part of the peripheral surface of the outer cylinder 13 facing, for example, a yellow color 15c.
Is an external cylinder that faces the display window 37 at the rotation angle position indicating the D recording method.
For example, green 15d is applied to a part of the peripheral surface of 13. The user can visually recognize this from the display window 37 and identify it.

[Brief description of drawings]

1 to 4 show an embodiment of a tape cartridge according to the present invention. FIG. 1 is a sectional view taken along the line I-I in FIG. 3, and FIG. Fig. 3 is a sectional view taken along line III-III in Fig. 1, and 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 mouth.

Claims (1)

[Claims] 1. A display window 37 is opened in a part of the main body case 1, and a cylindrical display member 9 for identifying information is provided in the main body case 1 so that a part of its circumference is the display window 37. Vertical axis to face
The display body 9 is rotatably assembled around the display body 28. The display body 9 is composed of an upper piece 11 and a lower piece 10 that are separately formed so that they can rotate together. The operation ports 40 and 39 are provided on the upper surface and the lower surface of the main body case 1 corresponding to the directions, respectively. The upper piece 11 has the operation port 40 on the upper surface side, and the lower piece 10 has the operation port 39 on the lower surface side. A tape cartridge characterized in that it can be rotated from the outside through each.