JPS6037721Y2 - Cassette type magnetic recording/reproducing device - Google Patents

Description

[Detailed description of the invention] The present invention has a cassette storage body that is movable between a cassette attachment/detachment position and a cassette mounting position, and when the cassette storage body is in the cassette attachment/detachment position, the rear side of the cassette storage body is A cassette is placed from the outside on the cassette, and then the cassette storage body is moved to a cassette loading position, so that the cassette is loaded onto the cassette loading unit and taken out from there. This invention relates to improvements in cassette-type magnetic recording and reproducing devices.

Various types of cassette-type magnetic recording and reproducing devices have been proposed in the past, but in all cases, it is easy to install and remove a cassette from a cassette storage body, and in particular, to facilitate the removal of a cassette from a cassette storage body. Moreover, since it has a cassette storage body, when it is necessary to clean the cassette mounting part and parts related thereto, this can be done easily.
Furthermore, when the cassette storage body is moved to the cassette mounting position and the cassette is mounted on the cassette mounting section, it is difficult to determine the driving state of the magnetic tape installed in the cassette. It had some drawbacks.

Therefore, the present invention does not have the above-mentioned disadvantages and can easily install and remove a cassette into and from a cassette storage body, can easily clean the cassette loading section and parts related thereto, and can also easily attach the cassette to the cassette storage. The purpose of the present invention is to propose a new type of cassette-type magnetic recording and reproducing device that allows the driving state of the internal magnetic tape to be easily determined.
It will become clear from the following detailed description of an example of the present invention with reference to the drawings.

In FIGS. 1 to 3, reference numeral 1 indicates a case body, for example, a rectangular window 3 is provided on the front plate 2 of the case body 2 to allow movement of a cassette storage body 51, which will be described later. A substrate 4 is fixedly disposed on the back side of the front plate 2 in parallel with the front plate 2 at a predetermined distance.

A cassette mounting portion 5 is formed on the substrate 4 at a position facing the window 3 of the front plate 2 of the case body 1.

In this case, the cassette mounting section 5 is also seen in a normal cassette type magnetic recording/reproducing device, so a detailed explanation thereof will be omitted. and 9.

Then, the following cassette 1 is placed on the cassette mounting section 5.
1 is mounted as described below.

That is, as is particularly clear in FIG. 1, an example of the cassette 11 has a pair of reel shaft insertion holes 12L and 12R1, a capstan insertion hole 13IJ and a pair of positioning pin insertion holes 14, and a pair of reel shaft insertion holes 12L and 12R, respectively. On the side opposite to the capstan insertion holes 13L and 13R, information representing the content of the signal is written and displayed when the signal is recorded on the magnetic tape 27, or when the recorded signal is reproduced, as described later. The index portion 15 to be obtained is placed between the upper and lower plates 17 and 18 having the magnetic tape monitoring window 16 between the reel shaft insertion holes 12L and 12R, the magnetic head insertion window 19 in the center, and the left and right sides thereof. A front plate 21 provided with pinch roller insertion windows 20L and 20R, a back plate 22, and left and right side plates 23L and 23.
The reels 26L and 26R have center shaft holes 25L and 25R in the case body 24, respectively.
7 and the reel shaft insertion holes 12L and 12R of the bottom plate 18 so as to be freely rotatable, and the magnetic tape 27 is placed between the second reels 26L and 26R on the front plate 21.
It has a Phillips-type cassette configuration, which is known per se, being wound in extended relation along the rear side of the cassette.

Thus, the cassette 11 has the reel shafts 6L and 6R, the capstan 7, and the positioning pins inserted into the reel shaft insertion holes 12L and 12R1, the capstan insertion holes 13R1, and the positioning pin insertion holes 14, respectively, with the bottom plate 18 facing the substrate 4. The cassette is mounted on the cassette mounting section 5 by inserting the cassette pin 8 therethrough and by abutting the positioning pin 9 on the surface of the lower plate 18.

Further, a sliding plate 3 is disposed below the cassette mounting section 5 on the board 4 so as to be able to slide vertically (the guiding means thereof is not shown).
1, and a pinch roller 35 rotatably mounted on the free end of a rotating arm 34 rotatably mounted on a shaft 33 mounted on the substrate 4. Also axis 3
3, one end of which is engaged with a pin 36 that is preset on the upper edge of the lower surface of the rotary arm 34, and the other end of which is engaged with a pin 37 that is preset on the lower edge of the lower surface of the rotary arm 34, respectively. is wound, and on the other hand, the free end of the winding strip 3B on the pin 37 side is extended to the left so that the pusher 39, which is set in advance on the sliding plate 31 mentioned above, is engaged with the extended part. There is.

Reference numeral 40 designates a pinch roller 35 for pivotally connecting the rotating arm 34, which engages with the end of the rotating arm 34 disposed on the sliding plate 31 from above and below, to the capstan 7 of the cassette mounting section 5. This is a retaining piece that can be rotated to make them further apart.

As described above, if the sliding plate 31 is slid upward with the cassette 11 mounted on the cassette mounting section 5,
The magnetic head 32 contacts the magnetic tape 27 through the window 19 of the front plate 21 of the cassette 11, and the pinch roller 35 contacts the capstan 7 with the magnetic tape 27 sandwiched therebetween through the window 20R of the front plate 21 of the cassette 11. If the reel shaft 6R and capstan 7 are rotated counterclockwise after or before such a state is obtained, the magnetic tape 2
7 is the magnetic head 3 from the reel 26L side to the reel 26R side.
The magnetic head 32 records signals on the magnetic tape 27 while being brought into contact with the magnetic tape 27, or reproduces the signal recorded on the magnetic tape 27.

Further, as described above, in order to mount the cassette 11 on the cassette mounting section 5, a cassette storage body 51 is provided which is movable between the cassette mounting/detaching position and the cassette mounting position.

An example of this cassette storage body 51 has left and right side plate parts 52L and 5 that guide the left and right side plates 23L and 23R of the cassette 11, respectively, on the left and right side parts of the back surface thereof.
2R are provided, such as left and right side plate portions 52L and 52.
Back plate portions 53L and 53R are provided at the free end of R to guide the left and right side portions of the bottom plate 18 of the cassette 11, which extend slightly to the right and left, respectively, and left and right side plate portions 52L and 52R are provided. Lower surface plate portions 54L and 54R are provided at the lower end to receive the left and right side portions of the front plate 21 of the cassette 11, which extend slightly to the right and left, respectively, and are further provided with left and right side plate portions 52L and 52R. It has a configuration in which support arms 55L and 55R are provided that extend downward integrally from the lower end, respectively.

Note that 56L and 56R engage with the left and right side parts of the top plate 17 of the cassette 11, which are provided at positions corresponding to the back plate parts 53L and 53R on the back side of the cassette storage body 51, so that the cassette 11 can be placed on the back side. These are bullets for pressing against the face plate portions 53L and 53R.

Thus, the cassette storage body 51 supports its support arms 55L and 55.
Support plates 5 having the free ends of the R are planted at the lower left and right positions, respectively, of the window 3 on the back side of the front plate 2 of the case body 1 mentioned above, for example.
They are rotatably attached to shafts 58L and 58R attached to the free ends of 7L and 57R, and are rotatably arranged around the shafts 58L and 58R.

In this case, the cassette storage body 51 has, for example, its support arm 55L.
The spring 59 inserted between the front plate 2 of the case body 1 is rotationally biased clockwise when viewed from the left side, and the rotationally biased position is as shown in FIG.
A stop piece 6 whose front edge is planted on the front plate 2 of the case body 1
The opening at the upper end of the cassette storage body 51 opens through the window 3 of the case body 1 so that the cassette 11 can be placed therein or taken out from there. The cassette attachment/detachment position located on the side is adopted, and the cassette storage body 51
If the cassette 11 is rotated counterclockwise against the cassette housing 51 as shown in FIG. The cassette mounted on the top is brought to the mounting position, and this state is similar to the locking mechanism found in ordinary cassette-type magnetic recording and reproducing devices, although illustrations and explanations are omitted. It is designed to be locked and unlocked from there.

The cassette 11 is placed on the back side of the cassette storage body 51 at the cassette attachment/detachment position, and the top plate 17 is inserted into the back side of the cassette storage body 51 from the capstan insertion holes 12L and 12R side of the case body 24. The left and right side plates 23L and 23R are left and right side plates 52L and 52R, respectively, the left and right sides of the top plate 17 are the bullets 56L and 56R, and the left and right sides of the bottom plate 18 are the back plate. The left and right sides of the front plate 21 are guided by the lower plates 54L and 54L and 53R, respectively.
They are arranged so that they are respectively received by R.

Further, in the cassette storage body 51, when the cassette 11 is inserted into the cassette storage body 51 and mounted on the cassette mounting section, the cassette 11 reel shaft insertion holes 12L and 12R are inserted from the upper end of the cassette storage body 51. The index section 15 provided in the case body 24 of the cassette 11, the tape monitoring window 16, and the center shaft holes 25L, 25R of the reels 26L, 26R include the line segment located below the line segment connecting the centers. A notch 61 (inverted trapezoid shape in this embodiment) is formed that is sufficiently extended to face the outside.

In this case, the notch 61 is inserted into the reel shaft insertion holes 12L and 12R.
The tape monitoring window 1 provided in the cassette 11 is extended to a position below the line segment connecting the centers of the cassette 11.
This is to make it possible to see the tape amount indicating scale attached approximately to the center of the tape 6, and this tape amount indicating scale is provided on the above-mentioned line segment.

Further, a decorative plate 63 made of a translucent material is attached to the cassette storage body 51 so as to cover the notch 61 and can be detachably attached using, for example, two screws 62L and 62R.

In this case, the decorative plate 63 is larger in shape than the window 3 of the front panel 2 of the case body 1, and when the cassette storage body 51 is in the cassette mounting position, the decorative plate 63 The window 3 of the front plate 2 of the case body 1 is closed from the front side.

The above is an example of the configuration of the present invention. According to this configuration, the cassette 11 is arranged in the cassette storage body 51 as described above assuming that the cassette storage body 51 is in the cassette attachment/detachment position, and then the cassette 11 is placed in the cassette storage body 51 as described above. If the storage body 51 is rotated counterclockwise against the force of the spring 59, this cassette storage body 5
1 is brought to the cassette mounting position where the cassette 11 placed thereon is mounted on the cassette mounting section 5 as described above, and is locked by the locking mechanism, and from this state, the locking mechanism It is clear that when the locked state is released, the cassette storage body 51 returns to the cassette attachment/detachment position by the force of the spring 59, but in this case, the cassette storage body 51
Since a notch 61 is provided in the cassette storage body 51 and a decorative plate 63 is detachably attached to the cassette storage body 51, if the decorative plate 63 is removed from the cassette storage body 51 in advance, the cassette 11 can be inserted into the cassette storage body 51. The magnetic head 3 can be mounted and removed very easily, and
2. When cleaning the pinch roller 35, capstan 7, etc., the distance between the pinch roller 35, the capstan 7, etc. and the notch 61 of the cassette storage body 51 can be made small, so this can be easily done; When the cassette 11 is loaded and mounted on the cassette mounting section 5, a signal to be recorded on the magnetic tape 27 or a signal to be recorded on the magnetic tape 27 is inserted into the index section 15 of the cassette 11 through the notch 61. It is possible to easily record information indicating what the
Furthermore, the amount of the magnetic tape 27 on the reels 26L and 26R of the cassette 11 and the rotational state of the reels 26L and 26R, that is, the driving state of the magnetic tape 27 are monitored through the magnetic tape monitoring window 16.
Furthermore, the decorative plate 63 has translucency even when the decorative plate 63 is attached to the cassette storage body 51, and the cassettes 11 mounted on the cassette mounting section 5 can be easily monitored through the display. The information recorded on the index section 15 and the driving state of the magnetic tape 27 can be easily recognized and monitored through the decorative plate 63 and the notch 61.

Although the case where the cassette storage body 51 is freely rotatable has been described above, it may also be configured so that it can slide forward and backward with respect to the cassette mounting section 5. In other words, the cassette storage body 51 It is sufficient that it is movable relative to the frame.

Furthermore, in the above description, the case has been described in which the cassette 11 is arranged so as to be held in the cassette storage body 51 for mounting a cassette;
L and 54R are omitted, but a guide piece is provided in the cassette mounting section 5 to receive the front plate 21 of the cassette 11 mounted thereon when the cassette storage body 51 rotates between the cassette mounting position and the cassette mounting position. and various other modifications may be made.

[Brief explanation of the drawing]

FIG. 1 is a front view of a route showing an example of a cassette mounting device for a cassette-type magnetic recording/reproducing apparatus according to the present invention, and FIGS. 2 and 3 show a cassette storage body 51 on the line FIG. 4 is a sectional view showing the position and the cassette attachment/detachment position. In the figure, 5 is a cassette mounting section, 11 is a cassette, 27 is a magnetic tape, 32 is a magnetic head, 35 is a pinch roller, 5
Reference numeral 1 indicates a cassette storage body, 61 a notch, and 63 a decorative board.

Claims (1)

[Scope of utility model registration request] A cassette storage body is provided which is movable between a cassette attachment/detachment position and a cassette mounting position, and the cassette is inserted into the cassette storage body through an opening at an upper end of the cassette storage body while the cassette storage body is in the cassette attachment/detachment position. Alternatively, the cassette-type magnetic recording and reproducing device is configured such that the cassette can be taken out from there and the cassette is mounted on the cassette mounting section by bringing the cassette storage body with the cassette mounted thereto to the cassette mounting position. In the above, the cassette storage body has a line on its front surface located below a line segment connecting the upper end of the cassette storage body to the centers of both reel shaft insertion holes of the cassettes mounted on the cassette mounting section. 1. A cassette-type magnetic recording and reproducing device comprising a notch including a portion, and a transparent decorative plate removably attached to cover the notch.