JPH0453079A - Tape cartridge - Google Patents

Abstract

PURPOSE:To prevent a front panel from being hung on the lower face of a protection wall and to improve the reliability of a function by forming the corner part of either the upper end face of the front panel or the front end face of the protection wall on a slope descending toward the back of a case. CONSTITUTION:On the side of either a front panel 9 of a front lid 7 or a protection wall 12, at least, a slope 16 is provided while being inclined descending toward the back of the case so as to prevent the upper edge of the front panel 9 from being hung on the protection wall 12 even when the front panel 9 is intensively pushed into the lower face of the protection wall 12. Only by releasing external force operated upon the front panel 9, the front panel 9 can be returned to a normal state by itself. Thus, the reliability of the function of the tape cartridge can be improved by preventing the tape cartridge from being used in the state of hanging the front panel 9 on the protection wall 12 because of mischief or miss.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a tape cartridge having a front cover for protecting the tape on the front surface of a main body case.

[Conventional technology]

The conventionally known VH5-C type tape cartridge has a second
As shown in the figure, a tape loading pocket 6 is provided on the front surface of the main body case 1, and a front I7 is attached to an eaves wall 12 that covers the top surface of this pocket 6. The front lid 7 has a single plate-shaped front plate 9 and a pair of side plates 10 protruding from the left and right ends of the front plate 9.
The entire front cover 7 can be opened and closed by swinging up and down.

When the front plate 9 is in the closed state, the front plate 9 covers the front surface of the pocket 6 and the eaves wall 12 to protect the tape 4.

[Problem to be solved by the invention]

The front plate 9 formed as a single plate has a thin thickness, and the support shaft 11
Due to the large span between the plates, they easily bend and deform when subjected to an external force perpendicular to the plate surface. The inward bending and deformation of the front plate 9 itself does not cause much harm. However, as shown in FIG. 7, if the front plate 9 is pushed into the pocket 6 and its upper edge 9a sinks into the lower surface of the eaves wall 12, when the deck is loaded,
The front lid 7 cannot be opened, resulting in serious damage to the deck.

Even if the front plate 9 gets caught on the eaves wall 12, anyone can relatively easily resolve the abnormal condition as long as they notice it. However, this type of tape cartridge is small overall, and the front plate 9 is recessed into the eave wall 12.
Since the amount of catching is small, it is easy to overlook an abnormality in the front cover 7.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to eliminate the possibility that the front plate sinks into the lower surface of the eaves wall and gets caught, thereby improving the functional reliability of the tape cartridge.

[Means to solve the problem]

In the present invention, even if the front plate 9 is pushed into the lower surface of the eave wall 12, it can return to its normal state by itself as long as the external force is released, and the front plate 9 is fixed in the stuck state. The goal is to prevent this from happening.

Specifically, the main body case 1 has a pocket 6 for loading tape on the front surface, and a front cover 7 for protecting the tape is attached to an eaves wall 12 that covers the top surface of the pocket 6 so as to be able to swing up and down. In the tape cartridge, the front lid 7 connects the tape 40 passage path and the eaves wall 1 when the lid is closed.
2, and at least one of the mutually adjacent corners of the upper end surface 15 of the front board 9 and the front end surface 14 of the eaves wall 12 extends toward the rear of the case. It is required that it be formed on an inclined surface 16 that slopes downward in the opposite direction.

[Effect]

The reason that at least one corner of the upper end surface 15 of the front plate 9 and the front end surface 14 of the eaves wall 12 is formed into an inclined surface 16 that slopes downward toward the rear of the case is because the front plate 9 is formed on the eaves wall. When pushed into the lower surface of the eave wall 12, the upper edge of the eave wall 12
At the same time, a contact reaction force is generated in the direction of eliminating the deflection deformation of the front plate 9 at the part where the inclined surface 16 and the opposite wall contact, and the front plate 9 is actively returned to its original position. It's for a reason.

〔Effect of the invention〕

In the present invention, an inclined surface 16 that slopes downward toward the rear of the case is provided on at least one side of the front plate 9 and the eaves wall 12 of the front cover 7.
Even if it is intentionally pushed into the underside of the
Since the upper edge can be prevented from getting caught on the eave wall 12, the front plate 9 can be returned to its normal state by itself by releasing the external force acting on the front plate 9. This prevents the front plate 9 from being used with it being caught on the eaves wall 12 due to mischief or oversight, and improves the functional reliability of the tape cartridge.

〔Example〕

1 to 4 show an embodiment of a tape cartridge according to the present invention.

In Fig. 2, reference numeral 1 indicates an upper case 1a and a lower case 1b.
The main case is made by combining the two lids together. A tape reel 2 for feeding and a tape reel 3 for winding are arranged on the left and right sides inside the main body case 1, and the tape 4 drawn out from the tape reel 2 for feeding is placed on the left and right sides of the front end of the case. The tape is wound onto a winding tape reel 3 via provided guide members 5, 5. A tape loading pocket 6 is recessed between both guide members 5 and 5, and the front outer side of the tape 4 that crosses this pocket 6 is connected to the main body case 1.
It is covered with a front cover 7 attached to the unit when not in use.

The front lid 7 has a crosspiece-shaped front plate 9 and a pair of side plates 10 protruding from the left and right ends of the front plate 9, and a support shaft 11 is protruded from the inner surface of each side plate 10 in an opposing manner. It consists of plastic molded parts. A pair of support shafts 11 are eaves walls 1 that cover the upper surface of the pocket 6.
2, and a spring 1 that closes and biases the front cover 7 on one side thereof.
3 is installed.

When the front cover 7 is closed, the front plate 9 is covered with the tape 4.
It is located in front of the case from the passage path of the eaves wall 12 and the front end surface 14 of the eave wall 12, and covers each front surface. If the front plate 9 is pushed into the case in this state, the entire plate surface will bend and deform and sink into the lower surface of the eaves wall 12, as shown in FIG.

Even if the front plate 9 is pushed into the lower surface of the eave wall 12 in this way, in order to be able to self-return to its original state due to the deformation stress of the plate surface, the rear corner side of the upper end surface 15 of the front plate 9 is An inclined surface 16 was provided on the surface. This inclined surface 16 is formed to be inclined downward toward the rear of the case, and is formed over almost the entire length of the upper end surface 15 except for the vicinity of the side plate 10.

When the front plate 9 sinks into the lower surface of the eaves wall 12, at least two places of the inclined surface 16 intersect with the front end surface 14 of the eaves wall 12, as shown in FIG. At this intersection, a contact reaction force is generated in the direction that eliminates the deflection deformation of the front plate 9, so when the pushing force is released, the front plate 9 immediately returns to its original state and will not get caught on the eaves wall 12. do not have.

[Another embodiment example]

The present invention can be implemented in the forms shown in FIGS. 5 and 6, respectively.

FIG. 5 differs from the above embodiment in that an inclined surface 16 is formed at the front corner of the eave wall 12. In FIG.

In FIG. 6, the front end corner of the eave wall 12 and the upper end surface 15 of the front plate 9 are shown.
An inclined surface 16 is formed on both sides.

In addition to the above, the inclined surface 16 can also be formed into a curved surface.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the tape cartridge according to the present invention, FIG. 1 is a sectional view taken along the line A-A in FIG. 2, FIG. 2 is a plan view of the whole, and FIG. A plan view showing the deformed state of the front plate, FIG.
It is a sectional view taken along the line BB in the figure. FIG. 5 is a longitudinal sectional side view showing another embodiment of the present invention. FIG. 6 is a longitudinal sectional side view showing yet another embodiment of the present invention. FIG. 7 is a longitudinal side view showing a conventional tape cartridge in an abnormally used state. 1...Body case, 4...Tape, 6...Pocket (for tape loading), 7
...Front lid, 9...Front plate, 12...Eave wall, 14...Front end surface, 15...Top end surface, 16...Slope surface. Figure 1 Inventor Hikaru Mizutani Figure] Figure Figure Date Figure

Claims (1)

[Claims] 1. The main case (1) has a tape loading pocket (6) on the front surface, and a front cover for protecting the tape is provided on the eaves wall (12) that covers the top surface of the pocket (6). In the tape cartridge in which (7) is attached so as to be vertically swingable, the front lid (7) is a single plate that covers the passage of the tape (4) and the front surface of the eaves wall (12) when the lid is closed. It has a front plate (9) having a shape of A slope that slopes downward toward the rear (1
6) A tape cartridge characterized by being formed as follows.