JPH0452539B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette loading device.

Conventional structure and its problems Traditionally, for example, a VHS system VTR cassette has an opening for tape loading and a guard panel that shields the opening, and the cassette is connected to a magnetic recording/reproducing device through the opening. and insert
When designing a deck in which the cassettes are placed upright, most of the decks are equipped with a cassette holder like a so-called kangaroo pocket, as in the first example. In this case, e.g.
In VHS cassettes, the letters, designs, labels, etc. written on the cassettes were all upside down, which not only made it difficult to see, but also significantly degraded the quality of the product. In addition, in Figure 1, 2
Reference numeral 1 denotes the main body of the magnetic recording/reproducing apparatus, 22 a cassette holder, and the cassette 23, which can be seen through the transparent part in an ejected state, can be taken out freely.
24 is a push button for operation, and 25 is a handle rotatable around a fulcrum 26. The cassette 23 is inserted in the direction of arrow A with the guard panel side facing downward, and then mounted by manually pushing the cassette holder 22 in the direction of arrow B.

OBJECTS OF THE INVENTION The purpose of the present invention is to overcome the above-mentioned conventional drawbacks, and it is an object of the present invention to allow a cassette to be loaded with the label of the cassette erected.

Structure of the Invention In order to achieve the above object, the cassette loading device of the present invention is movable between a first position where a magnetic recording/reproduction cassette can be taken out and a second position where the cassette is engaged with a reel stand. a cassette holder having a rotated body that is supported by the cassette holder and rotates together with the cassette holder; a slide plate that rotatably supports the cassette holder; and a slide plate that has a rotating shaft and transmits rotational force to the rotated body. a rotating body that guides the movement and rotation of the rotating body; a sliding plate guide part that guides the movement of the sliding plate; and a rotating body guide part that engages with an engaging part provided integrally with the rotating body and guides the movement and rotation of the rotating body. and a drive source that drives the rotating body along a predetermined movement locus determined by the guiding shape of the rotating body guide and the slide plate guide.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below based on the drawings.

FIG. 2 shows a cassette deck equipped with a cassette loading device according to an embodiment of the present invention. A cassette deck 1 has a power switch 2 and an eject switch 3 on the right side when viewed from the front, and a cassette 5, which can be seen standing upright, is set in a predetermined position inside a cassette holder 4. A tape counter 6 and operation push buttons 7 are located on the left side of the cassette deck 1 when viewed from the front.

Next, the configuration of the cassette mounting device will be described based on FIG. 3 and subsequent figures. In the figure, 8 is a guide base provided in the cassette deck 1, 8a to 8c.
is a guide groove formed in the guide base 8.
The guide grooves 8b and 8c each have a length of about 35 mm and are formed horizontally. The guide groove 8a has a horizontal portion and an arcuate portion extending upward from its tip, the horizontal portion having a length of about 35 mm, and the arcuate portion being an arc centered on the support shaft 9a in the state shown in FIG. 10 is a motor,
10a is a mounting base for fixing the motor 10 to the guide base 8, and 11 is a worm attached to the rotating shaft of the motor 10. 12 is relay gear,
The worm wheel portion 12a meshes with the worm 11 and is rotatable about the support shaft 12b.
13 is a drive gear, which is the spur gear portion 12 of the relay gear 12.
c, and is freely rotatable about the support shaft 13a. 14 is a drive lever, which is attached to the support shaft 13a.
It is rotatable around the center and is integrated with the drive gear 13. 14a is a long hole at the tip of the drive lever 14. Reference numeral 18 denotes a main rotating body, which is rotatable around a support shaft 9a implanted in the slide plate 9.

Reference numeral 15a denotes a drive pin, which is implanted in the main rotating body 15 and engages with the guide groove 8a and the elongated hole portion 14a. 9b and 9c are engagement pins, and the slide plate 9
The guide grooves 8b and 8c engage with the guide grooves 8b and 8c, respectively. Therefore, the slide plate 9 is movable only in the horizontal direction within a range of about 35 mm. A holder shaft 9d is installed on the slide plate 9 and supports the cassette holder 4. The vertical load applied to the holder shaft 9d is applied to the engagement pin 9.
It is supported by the guide grooves 8b, 8c via the guide grooves 8b, 9c. Reference numeral 16 denotes a rotating body which is fixed to the cassette holder 4 and is rotatable together with the cassette holder 4 around the holder shaft 9d.
It contacts and interlocks with the main rotating body 15. Here, the support shaft 9a, which is the center of rotation of the main rotating body 15, and the rotated body 16
The holder shafts 9d, which are the centers of rotation, are installed so as to be positioned at both ends of the slide plate 9, so that the distance between them is always kept constant.
Also, the contact portion 15 of the main rotating body 15 with the rotated body 16
b and the contact portion 1 of the rotated body 16 with the main rotating body 15
6a are formed of gears or elastic bodies, and are interlocked with each other. Reference numeral 17 denotes a cassette lock lever, which is rotatable around a support shaft 4a implanted in the cassette holder 4, and is biased by a spring 18 to prevent the cassette 5 from falling off. A fixing pin 4b is embedded in the cassette holder 4 and fixes the position of the cassette lock lever 17 when the cassette 5 is removed from the cassette holder 4. 5a is a guard panel for the cassette 5. 19 is a chassis to which a cassette support post 20 is fixed.

The drive mechanism for the cassette holder 4 described above is provided on both left and right inner surfaces of the cassette deck 1.

The operation of the present invention will be explained below. In FIG. 3, when the motor 10 is rotated, the worm 11 is rotated. As a result, the worm wheel portion 12a of the relay gear 12 rotates counterclockwise, and the relay gear 12
A drive gear 13 connected to the spur gear portion 12c rotates clockwise around a support shaft 13a. Therefore, the drive lever 14 fixed to the drive gear 13 also supports the support shaft 13.
Rotate clockwise around a. Here, the main rotating body 15 is engaged with the elongated hole 14a and the guide groove 8a by the drive pin 15a, so when the drive lever 14 rotates approximately 34 degrees clockwise, the main rotating body 15 is Rotate about 53 degrees counterclockwise around 9a. As a result, the rotated body 16 interlocked with the main rotary body 15 rotates approximately 105 degrees clockwise about the holder shaft 9d. Therefore, the cassette holder 4 that fixes the rotated body 16, the cassette lock lever 17 supported by the cassette holder 4, the cassette 5, etc. are similarly rotated approximately 105 degrees clockwise about the holder shaft 9d, and the cassette is 5 stands upright. As mentioned above, since the arc portion of the guide groove 8a is formed as an arc centered on the support shaft 9a, the support shaft 9a remains stationary during the above operation, and therefore the slide plate 9 remains stationary. Furthermore, the cassette lock lever 17 prevents the cassette 5 from falling during this operation. Through the above-described operations, the cassette mounting device shifts to the state shown in FIG. The motor 10 further rotates from the state shown in FIG. 5, and the drive lever 1
4 rotates approximately 52 degrees clockwise, the drive pin 15
a moves about 35 mm horizontally to the left along the guide groove 8a. Also, the support shaft 9 which is the center of rotation of the main rotating body 15
Since a is implanted in the slide plate 9, the support shaft 9a, like the slide plate 9, is also movable only in the horizontal direction, as described above. Therefore, the drive pin 15
Due to the horizontal movement a, the main rotating body 15 and the slide plate 9 move about 35 mm in the horizontal direction without rotating. At this time, the cassette holder 4 connected to the slide plate 9 by the holder shaft 9d also moves approximately 35 mm horizontally to the left without rotating. Through the above operations, the cassette loading device moves to the sixth position.
In the state shown in the figure, the cassette 5 is pressed onto the cassette support post 20, the guard panel 5a is opened, and the magnetic tape can be pulled out and stored from the cassette opening. In the state shown in FIG. 6, erect viewing of the cassette 5 is realized. Incidentally, the transition from the state shown in FIG. 6 to the state shown in FIG. 3 can be realized by rotating the motor 10 in the opposite direction by an operation completely opposite to that described above.

As described above, according to this embodiment, when the cassette 5 is inserted into the cassette holder 4, the cassette 5 is inserted from a position that allows it to be inserted slightly diagonally downward, and when the cassette 5 engages with the reel stand, the cassette 5 is placed in an upright position so that it can be seen through. A mechanism for moving the cassette holder 4 to a desired position can be realized with a small number of parts, and the mechanism is extremely simple, driving only the main rotating body 15, and the cassette holder 4 supported by the slide plate 9 4 has excellent positional accuracy in the vertical, horizontal, and horizontal directions. Furthermore, slide plate 9
By placing the supporting part of the cassette holder 4 in a position close to the straight line passing through the center of gravity of the cassette 5 and the cassette holder 4,
The load on the drive source when the motor performs a predetermined movement becomes extremely small. By appropriately selecting the drive trajectory of the drive pin 15a protruding from the main rotating body 15, it is possible to cause the cassette holder 4 to perform various movements including rotation and approximately parallel movement. Also, the cassette holder 4 as described above
The movement of the cassette 5 makes it very easy to insert the cassette 5, makes it easy to see the cassette 5 after installation, and greatly improves the quality of the product, which has great practical effects.

Effects of the Invention As described above, according to the present invention, there is provided a rotatable body that rotates together with a cassette holder, a slide plate that rotatably supports the cassette holder, and a slide plate that has a rotating shaft that supports the rotated body. By providing a rotating body that transmits rotational force to the cassette, the cassette can be mounted in an upright position, which has a great practical effect.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing a conventional example, Figs. 2 to 6 show an embodiment of the present invention, Fig. 2 is an external perspective view, and Fig. 3 is a cross section showing the internal mechanism when inserting a cassette. 4 is an exploded perspective view showing the internal mechanism, FIG. 5 is a sectional side view showing the internal mechanism when the cassette holder is rotated until it is erected after the cassette is inserted, and FIG. 6 is the inside after the cassette is installed. FIG. 3 is a cross-sectional side view showing the mechanism. 1...Cassette deck, 4...Cassette holder,
5... Cassette, 5a... Guard panel, 8... Guide base, 8a to 8c... Guide groove, 9... Slide plate, 9a... Support shaft, 9b, 9c... Engaging pin, 9d...
Holder shaft, 10... Motor, 11... Worm, 12... Relay gear, 12a... Worm wheel part, 12b... Support shaft, 12c... Spur gear part, 13... Drive gear, 14... Drive lever, 14a... Long hole part, 1
5... Main rotating body, 15a... Drive pin, 15b... Contact portion, 16... Rotated body, 16a... Contact portion, 17... Cassette lock lever, 19... Chassis, 20... Cassette support post.

Claims (1)

[Claims] 1. A first cassette from which a magnetic recording/reproducing cassette can be taken out.
and the second position where the cassette engages with the reel stand.
a cassette holder having a rotated body that is supported movably between positions and rotates together with the cassette holder; a slide plate that rotatably supports the cassette holder; A rotating body that transmits rotational force to a rotated body, a slide plate guide section that guides the movement of the slide plate, and an engaging section that is integrally provided on the rotating body to engage with the rotating body to move and rotate the rotating body. A cassette loading device comprising: a rotating body guide section that guides the rotary body; and a drive source that drives the rotary body along a predetermined movement locus determined by the guide shapes of the rotary body guide section and the slide plate guide section. 2. The cassette mounting device according to claim 1, wherein the drive source includes a motor that rotates in forward and reverse directions.