JPS6213270Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tape cassette having an opening/closing lid, which covers and protects the tape stretched between the tape guide members of the tape cassette with the opening/closing lid and a tape guard piece. This prevents the tape from coming into contact with the tape drawer member of the device inserted into the opening on the front surface of the tape cassette and damaging the tape when the tape is installed in the device.

First, an example of a conventional tape cassette with an opening/closing lid will be described with reference to FIGS. 1 to 4.

Figure 1 is a perspective view with the lid open, Figure 2 is a back view with the lid closed, and Figures 3 and 4 are cross-sectional views taken along line C-C' in Figure 3. .

The tape cassette main body is composed of a lower housing 1 and an upper housing 2, and when the opening/closing lid 4 is closed, the tape 3 is attached to the lid 4 and the front side plate 4 of the lid.
Tape guard piece 5 provided parallel to a
is stretched between.

1 and 3 show a state in which the lid 4 is rotated around the rotation shafts 6, 6 and the lid 4 is opened. When the lid 4 is opened and closed, the tape guard piece 5
is integral with the lid 4 and is parallel to the front side plate 4a of the lid 4. Therefore, if the tape guard piece 5 is prevented from coming into contact with the tape 3 when the lid 4 is opened and closed, the length of the tape guard piece 5 is shortened. As a result, when the lid 4 is closed, the sides of the tape 3 cannot be completely covered by the tape guard piece 5, as shown in FIG.

Therefore, the tape 3 exposed from the tape guard piece 5 is easily damaged by contact with fingers or the like or by adhesion of dust or the like.

Note that 7 is an opening into which a tape pull-out pin or the like provided on the apparatus side is inserted, and the tape 3 is stretched across this opening.

Further, reference numeral 8 denotes a tape position regulating piece provided on the cassette body so as to be close to the inside of the tape 3.

The present invention is intended to solve the above-mentioned conventional problems, and will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 5 to 9,
The first point that is particularly different from the conventional example is that the rotation axis 6 of the opening/closing lid 4 is located approximately in the center of the cassette body in the thickness direction, and the second point is that the tape guard piece 5 is sufficiently long. The point is that the portion beyond the center is formed by an arc centered on the pivot shaft 6 of the lid 3, as shown in FIG.

FIG. 6 shows the tape cassette with the lid 4 open.

Large chamfered portions 4b are formed at the upper portions of both sides of the lid 4 so as not to impede rotation of the lid 4. Further, there is a similarly large relief portion 2a on the top of the casing 2. When the lid 4 rotates, the tape 3 is naturally stretched.
The protection of the lid 4 and tape guard piece 5 is released.

Figure 7 shows the second tape cassette of the present invention.
It is a sectional view corresponding to figure C-C'.

As shown in FIG. 7, the tape guard piece 5, like the lid 4, has the same length as the thickness of the tape cassette, so the tension tape 3 is covered by the lid 4 and the tape guard piece 5.

In other words, if you insert your finger or the like into the opening 7 from the direction of the arrow,
It does not touch tape 3 even if it is inserted into the tape.

FIG. 8 is a diagram showing the tape cassette of the present invention being installed in the apparatus.

In the figure, reference numeral 10 denotes a loading post inserted into the opening 7 of the tape cassette in order to pull out the tape 3.

11 is a base that supports the loading post 10, and 12 is a loading ring for moving the loading post 10 and pulling out the tape 3 from the cassette.

3 in the figure is the normal tape tensioning position.
In this case, even if the loading post 10 is inserted into the opening 7 of the tape cassette, the loading post 1
Since the loading post 10 and the tape 3 are separated from each other, the loading post 10 will not come into contact with the tape 3 and be damaged.

However, there is a large possibility that the stretched tape 3 becomes slack due to factors such as vibration or intentional factors and is located inside the opening 7. In that case, it is natural that the tape 3
may come into contact with and be damaged.

In the tape cassette of the present invention, while the loading post 10 is being inserted into the opening 7, the tip 5a of the tape guard piece 5 contacts the tape at a position 3' in the figure even if the tape 3 is slack.

Therefore, even under conditions that cause the tape 3 to sag, the position of the tape 3 is regulated by the tape guard piece 5, and the tape 3 will not come into contact with the loading post 10 and be damaged.

Note that 13 is a lid opening member attached to the device.

FIG. 9 is a diagram showing the tape cassette of the present invention installed in the apparatus.

As shown, the tape guard piece 5 has an opening 7
The loading post 10 is rotated to a higher position than the loading post 10 inserted in the
This has no effect on the tape pull-out operation.

Note that when taking out the tape cassette from the device, the tape 3 pulled out into the device is normally wound onto a reel hub (not shown) inside the cassette body by the drive of the reel stand of the device. The guide members are stretched without slack between them.

In other words, the state shown in FIG. 9 is reached.

The process of removing the tape cassette is as shown in Fig. 8. As mentioned above, the tape 3 is stretched between the guide members in the tape cassette without slack, so it is inserted securely between the lid 4 and the tape guard piece 5. The result will be as shown in Figure 7.

In the above-described first embodiment, the shape of the tape guard piece 5 was made into an arc shape with the tip end from the center in the thickness direction of the tape cassette centered on the rotation axis 6 of the lid 4. As an example, it is also conceivable to make the tip 5a of the tape guard piece 5 linear as shown in FIGS. 10 and 12. Also, as shown in FIG. 11, the shape of the tape guard piece 5 may be such that it slopes linearly from the joint between the lid 4 and the tape guard piece 5 in the width direction of the tension tape 3. It will be done. By adopting such a configuration, the manufacturing process is simplified compared to the first embodiment. In these cases, as is clear from the above explanation, the tip 5a of the tape guard piece 5
The condition is that the structure is such that it does not come into contact with the tension tape 3 when the lid 4 is rotated. As described above, according to the present invention, when the lid of the tape cassette is closed, the tape stretched over the opening of the tape cassette is covered with the lid from the outside and the tape guard piece from the inside. The tape can be protected from damage and dirt caused by contact with fingers and the like.

In addition, when installing a tape cassette into the device, even if the tape stretched over the opening has some slack, the tape guard piece can prevent the stretched tape from entering the inside of the opening. This prevents the tape from coming into contact with tape drawer members such as posts inserted into the tape cassette opening and being damaged, and the opening of the tape cassette can be set small, making it possible to downsize the tape cassette. be.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional tape cassette with the lid open, Figure 2 is a back view of the same tape cassette with the lid closed, and Figure 3 is taken along line C-C in Figure 2. 4 is a side sectional view of the same side in the open state, FIG. 5 is a side view of the main part of an embodiment of the present invention, and FIG. 6 is a side view of the main part of the same embodiment when the lid is open. 7, 8, and 9 are side sectional views of the main parts of the same embodiment in different operating states, and FIGS. 10, 11, and 12 are side sectional views of the main parts of different embodiments of the present invention, respectively. It is a diagram. 1...Top of the case, 2...Bottom of the case, 3...Tape,
4... Opening/closing lid, 5... Tape guard piece, 6... Rotating shaft, 7... Opening.

Claims (1)

[Scope of utility model registration request] A casing for storing a reel wound with tape and having an opening in the front for inserting a tape drawer member on the apparatus side, and a casing arranged on both sides of the front of the casing to allow the tape to cross the opening. a plurality of tape guide members stretched as shown in FIG. and a tape guard piece provided on the opening/closing lid so as to cover the tape stretched from the inside. 1. A tape cassette, characterized in that the distance between the piece and the front side surface of the opening/closing lid near the attachment point to the opening/closing lid is longer.