JPH01154347A - Lid opener device - Google Patents

Abstract

PURPOSE:To make a recorder and reproducing device thinner in thickness by opening the lid of a cassette to a fixed angle under a condition where the opening operation is interlocked to the movement of a holder when the holder is moved in the horizontal direction. CONSTITUTION:When a cassette 1 is inserted into a holder 5, a lid 2 protrudes from the holder 5 and the projecting piece 14 of a lid opener 15 supported by a supporting pin 8 is brought nearer to the lower end of the lid 2 while the holder 5 holds the cassette 1 in a state where the lid 2 is rotatable. When the holder 5 is driven by a driving section (not shown in the figure) and starts to make horizontal movement on a chassis 6 in the direction toward the lid 2 from the cassette 1. As a result, a guide pin 11 which is brought into contact with a cam member 10 slides on the cam member 10 and rotates a link 12 supported by the supporting pin 7 of the holder 5 clockwise. Accordingly, the lid opener 15 is rotated counterclockwise around the supporting pin 8 by a tying pin 9 engaged with a notched section 13 and the protruding piece 14 is brought into contact with the lid 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a lid opener device for a videotape recorder or the like that performs magnetic recording and reproduction using a cassette having a lid.

(Conventional technology) Conventionally, a videotape recorder (VTR).

In magnetic recording and reproducing devices such as digital audio recorders (DAT), the helical scan method is used.In this method, magnetic tape is wound around a cylinder equipped with a recording and reproducing head, and the magnetic tape is wound around this head. By running the magnetic tape, recording and reproduction are performed on the magnetic tape. Therefore, in order to record and play back, the cassette is inserted into the predetermined position of the magnetic recording and playback device (cassette loading), and then the magnetic tape stored inside the cassette is pulled out using a tape guide, etc. It is necessary to load the tape by winding it around a cylinder equipped with a head.

Furthermore, in order to protect the tape, the cassette is equipped with a front cover (hereinafter referred to as the lid) that can be rotated approximately at right angles to the upper surface of the front of the cassette, so this lid must be removed before loading the tape. I need to open it.

Therefore, when loading a cassette, the tape guide is inserted from the bottom side of the cassette into an opening (hereinafter referred to as a mouse) on the bottom side provided between the lid and the cassette body, and the tape guide is inserted into the bottom side of the lid. The cassette is disposed in close opposition to the magnetic tape installed therein, and the lid covering the front surface of the cassette is rotated toward the top of the cassette and held in an open state.

After the cassette loading is completed, the tape guide moves to the front side of the cassette, so that tape loading can be performed quickly.

One of such cassette loading methods is the front loading (slot-in) method. FIG. 4 is an explanatory diagram showing the height relationship between the cassette and tape guide in the front loading method. A lid 22 is covered on the upper surface side of the lid 21 and is pivotably supported at a substantially right angle. A mouth 23, which is an opening of a predetermined size, is formed on the lower surface of the cassette 21 on the back side of the lid 22, so that a part of the magnetic tape (not shown) stored in the cassette 21 comes close to the back side of the lid 22. They are placed inside in a band shape facing each other. The cassette 21 is held with the lid 22 protruding from a holder 24, and the holder 24 is supported so as to be movable in the horizontal and vertical directions of the chassis 25 by a drive unit (not shown) disposed on the chassis 25. On the other hand, a loading slider 2 is provided with a tape guide 26 erected on the chassis 25 to pull out the tape in the cassette 21.
7 are arranged.

In such a configuration, the lid 22 provided on the cassette 21 normally covers the front surface of the cassette and is held in a closed state. When the cassette loading is completed, the lid 22 is rotated toward the upper surface of the cassette 21 by a mechanism (not shown), and is brought into an open state.

First, the holder 24 holds the cassette 21 with the lid 22 closed, and maintains a clearance δ1 so that the height from the chassis 25 to the lower end of the lid 22 is higher than the height of the tape guide 26 from the chassis 25. while moving horizontally toward the lid 22 side.

Next, when the mouse 23 placed between the lid 22 and the cassette 21 is on the tape guide 26, the movement is changed to the vertical direction and begins to descend to the chassis 25. Then, the tape guide 26 is fitted into the mouse 23, and the lid 22 is rotated toward the upper surface of the cassette 21, so that the lid 22 is completely opened and the predetermined cassette loading is completed. At this time, the tape guide 26 is disposed closer to the tape on the inner surface of the cassette than the tape on the back side of the lid 22 and faces the loading slider 27.
moves the chassis 25 horizontally, and the saw set 2
The tape is now ready for loading by pulling out the tape from inside the tape guide 26.

However, in order to move the cassette 21 horizontally onto the tape guide 26 and then lower it, it is necessary that the lower end of the lid 22 pass through the tape guide 26 with a certain clearance. be. Therefore, since the height of the recording/reproducing apparatus is determined by the height of the tape guide 26 installed upright on the chassis 25 and the height of the lower end of the lid 22, that is, the height of the lower surface of the cassette 21, the recording/reproducing apparatus can be made thinner. This was an obstacle to achieving this goal.

(Problems to be Solved by the Invention) As described above, in the conventional lid opener device, the cassette is moved horizontally with a certain clearance between the cassette and the tape guide, and is lowered after passing over the tape guide. Because of this necessity, there has been a problem in that it is difficult to make the recording/producing device thinner.

SUMMARY OF THE INVENTION The present invention has been made in order to eliminate the above-mentioned problems, and an object of the present invention is to provide a lid opener device that allows a recording/reproducing device to be made thinner without adding any special mechanism.

[Structure of the Invention] (Means for Solving the Problems) The lid opener device of the present invention holds a cassette having a lid on the front so that the lid can be opened and closed, and moves the cassette horizontally and vertically to a predetermined position. First and second support pins are implanted on the side surfaces of the holder to be inserted into the bolt, a guide pin that contacts the cam member is protruded from one end, and a retaining pin is protruded from the other end. - is rotatably supported by a first support pin of the link, has a notch cut out at one end to engage with the engagement pin of the link, and has a protruding piece formed at the other end to come into contact with one end of the lid. Both ends of the lid opener are rotatably supported by second support pins of the holder, and when the holder is moved horizontally, the guide pin of the link slides on the cam member to rotate the link by a certain angle. When moving vertically in the rotation direction, the first support pin of the link implanted in the holder moves, causing the link to rotate to a predetermined angle.
The lid opener, which rotates in conjunction with this link, opens and closes the lid of the cassette with a protruding piece in contact with the lid opener.

(Function) According to the present invention, when the holder is moved horizontally, the guide pin of the link slides with the cam member and rotates at a certain angle, so that the lid opener that rotates in conjunction with the cam member rotates the cassette inserted in the holder. Since the lid is rotated and lifted to the top of the cassette, it is possible to bring the tape guide, which is arranged so that it has a certain amount of clearance from the bottom edge of the lid during horizontal movement, to the set of forces that move the lid. Become.

(Example) The present invention will be described below based on the example shown in the drawings.

FIG. 1 is a plan view showing an embodiment of the lid opener device of the present invention.

In this figure, a cassette 1 is provided with a lid 2 on the front surface thereof, which is rotatably supported substantially at right angles on the upper surface side.
A magnetic tape 3 for recording and reproducing is placed inside the cassette 1 on the back side of the lid 2 in close opposition to each other, and on the bottom side of the cassette 1 further from the lower end of the lid 2 from the position where the magnetic tape 3 is placed. A mouse 4 of a predetermined size is formed on the inner surface of the cassette. This cassette 1 is inserted from one opening into a box-shaped holder 5 having an opening formed on one opposing side surface. The holder 5 protrudes from the other opening of the holder 5 and holds the lid 2 in an openable/closable state, and is supported by a drive unit (not shown) disposed on the chassis 6 so as to be movable horizontally and vertically. Further, support pins 7 and 8 are respectively implanted on the side surfaces of the holder 5 into which the side surfaces of the cassette 1 are fitted.

A link 12 is rotatably supported on the support pin 7 . The link 12 has an engagement pin 9 protruding from one end, and a guide pin 11 protruding from the other end that abuts a cam member 10 mounted on the chassis 6. On the other hand, a lid opener 15 is rotatably supported on the support pin 8 . One end of the support pin 8 is provided with a notch 13 that engages with the engagement pin 9 of the link 12, and the other end is provided with a projecting piece 14 that abuts the lower end of the lid 2. On the other hand, a loading slider 17 is provided on the chassis 6 and is movably provided with a tape guide 16 that fits into the mouth of the cassette 1 and pulls out the tape 3 from the inside of the cassette 1 by a drive unit (not shown).

Next, the operation of the lid opener device configured as described above will be explained using FIGS. 2 and 3.

Here, FIGS. 2(a) to (C) are explanatory diagrams for explaining the operation of the link and lid opener, and FIGS.
b) is an explanatory diagram showing the relationship between the heights of the cassette lid and the tape guide.

When the cassette 1 is inserted into the holder 5, the lid 2 protrudes from the holder 5, and the holder 5 holds the cassette 1 with the lid 2 rotatable, and opens the lid opener 15, which is pivotally supported by the support pin 8. The protruding piece 14 is close to the lower end of the lid 2. Then, the holder 5 is driven by a drive unit (not shown) and begins to move horizontally on the chassis 6 in the front direction (toward the lid 2 of the cassette 1).

Then, as shown in FIG. 2(a), the guide pin 11 in contact with the cam member 10 slides on the cam member 10, and the link 12, which is supported by the support pin 7 of the boulder 5, is moved clockwise. The lid opener 15 is rotated counterclockwise about the support pin 8 by the engaging pin 9 fitted into the notch 13, and the protruding piece 14 comes into contact with the lid.

Furthermore, as shown in FIG. 2(b), the holder 5 is moved! l
711j, the guide pin 11 is supported at a constant height by the cam member 10, the link 12 and the lid opener 15 each stop rotating at a constant angle, and the protruding piece 14 moves the lid 2 up to a predetermined angle. Rotate it to open the lid 2. At this time, the lower end of the lid 2 is
), it is supported at a position higher than the lower end of the tape 3.

Then, when the mouse 4 on the lower surface of the cassette 1 comes onto the tape guide 16 installed in the loading slider 17, the movement of the holder 5 is changed from the horizontal direction to the vertical direction, and the holder 5 begins to descend into the chassis 6. Then,
As shown in FIG. 2(C), since the support pins 7.8 implanted in the holder 5 are lowered, the link 12 is centered around the guide pin 11, which is supported at a constant height by contacting the cam member 10. rotates further clockwise than when moving horizontally. In conjunction with this, the lid opener 15 rotates counterclockwise to further open the lid 2. Then, when the descent of the holder 5 is stopped and the cassette 1 is placed in a predetermined position, the lid 2 is completely opened.

Further, as shown in FIG. 3(b), as the holder 5 descends, the mouse 4 descends to cover the tape guide 16. Then, when the descent is completed, the cassette 1 is placed in the specified position.
When the tape guide 16 is placed, the tape guide 16 is inserted into the mouse 4 and is placed closer to the inner surface of the cassette 1 than the tape 3, facing the tape 3. If the loading slider 17 is driven in this state, the tape 3 in contact with the tape guide 16 can be pulled out from inside the cassette 1, and tape loading can be performed quickly.

Incidentally, when the cassette 1 is removed, the above operation is performed in reverse, and when the holder 5 is raised, the lid 2 is closed to a certain angle, and the moving direction of the holder 5 is changed horizontally.
The lid 2 is completely closed when the tape guide 16 and the lid 2 are sufficiently separated, and the lid opener 15 is separated from the lid 2 at the end of the movement.

Therefore, as shown in FIG. 3(a), when the holder 5 is moved horizontally, by rotating the lid 2 to a certain angle and opening it, the upper 11t, which is the highest position of the tape guide 16, can be opened.
'J H and the bottom edge of the tape 2 have a constant clearance 6
The distance between the holder 5 and the tape guide 16 in the longitudinal direction can be reduced to a position where the holder 5 and the tape guide 16 are maintained. Therefore, when moving in the horizontal direction, open the lid 2 to the lower end position 12L of the tape 3 and place the R high end of the tape guide 16 between the lower surface position L° of the cassette 1 and the above-mentioned position.
It becomes possible to reduce the arrangement size in the height direction, and the recording/reproducing device can be made thinner.

[Effects of the Invention] As described above, according to the present invention, by opening the lid to a certain angle in conjunction with the horizontal movement of the holder, the arrangement dimensions of the cassette and tape guide can be adjusted in the height direction. This has the advantage that the recording/reproducing apparatus can be made thinner.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the lid opener assembly δ of the present invention, Fig. 2 is an explanatory diagram for explaining the operation of the link and lid opener of this embodiment, and Fig. 3 is a diagram showing the lid of the cassette. FIG. 4 is an explanatory diagram showing the relationship between the heights of tape guides, and FIG. 4 is an explanatory diagram showing a conventional lid opener device. 1...Cassette 2...Lid 3...Tape 4...Mouse 5...Holder
7... Support pin 8... Support pin 9... Engagement pin 10... Cam member 11... Guide pin 12... Link 13... Notch portion 14.
...Protruding piece 15... Lid opener agent Patent attorney Nori Chika Ken Shu Uji Hiroshi Figure 1 Figure 2

Claims (1)

[Claims] A cassette whose front face is covered with a lid rotatably supported up to a certain angle is held so that the lid can be opened and closed,
a holder which has first and second support pins implanted on the side surface of the cassette and which moves horizontally and vertically to insert the cassette into a predetermined position; the first support pin of the holder; Both ends are rotatably supported by the holder, and one end has a protruding guide pin that comes into contact with the cam member, and the other end has an engaging pin protruding, so that when the holder moves horizontally, the guide pin A link that slides with the cam member and rotates by a certain angle, and further moves the first support pin when moving vertically, and rotates to a predetermined angle in the same rotation direction as when moving horizontally; A notch that engages with the engagement pin is carved at one end, a protruding piece that abuts one end of the lid is formed at the other end, and the lid is rotatably supported by the second support pin of the holder. A lid opener device comprising: a lid opener that rotates the lid with a protruding piece abutted in conjunction with the rotation of the link, and opens and closes the lid according to the amount of rotation of the link. .