JPS6262465A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To make compact a main slide plate and a mode SW, simplify the change over of a tape mounting mechanism and a drive force of the main slide plate and attain the compact and light device by interlocking a port having one or plural posts with a cassette lock release means for releasing the cassette lock. CONSTITUTION:A port 14 contacting a ring 1 and obtaining a drive force contacts the ring in the same direction as the ring 1 and turns and moves to a position on which an end of a port 14 abuts against an eject cam follower 15 and the eject cam follower 15 turns clockwise. The other end of the eject cam follower 15 is connected to an eject arm 17 through a rod 16 and the eject arm 17 turns clockwise. By this turning of the eject arm 17, a cassette lock release 18 is moved leftward, a cassette lock is released and a cassette is detached from a magnetic recording and reproducing device.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention provides a method for attaching a cassette containing a tape.
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The present invention also relates to a magnetic recording and reproducing device for reproducing information.

BACKGROUND OF THE INVENTION In recent years, magnetic recording and reproducing devices have been made smaller, lighter, and more efficient, and at the same time, costs have also been reduced.

Hereinafter, one row of the above-mentioned conventional magnetic recording and reproducing devices will be explained with reference to the drawings.

5 to 9 show the structure and operation of a conventional magnetic recording/reproducing apparatus. In FIGS. 5 to 9, 1 drives a boat (not shown) provided with one or more posts (not shown) to spread a tape (not shown).
This is a ring that is pulled out from inside the cassette and set in a predetermined position. Reference numeral 2 designates a loading motor that is a driving source for the ring 1, and reference numeral 3 designates a deceleration gag that decelerates the rotation of the loading motor 2 and transmits the rotation to the ring 1. 4 is a switch (S) provided to detect the rotation angle and position of the ring 1.
W) Arm base, 5 is turned ON by the rotation of SW arm 4
The SW (mu) 6 that performs loFF is a SW spring em that always applies a counterclockwise force to the SW arm 4 to operate the SW arm 4 following the shape of the ring 1.

7 is a main slide plate that drives and operates mechanical parts in each mode of the magnetic recording/reproducing device; 8 is a drive motor that is a drive source for the main slide plate 7; 9 is a drive motor 8
The reduction gears B and 1o, which reduce the rotation speed of the drive motor 8 and transmit it to the main slide plate 7, are the reduction gear C which reduces the rotation speed of the drive motor 8 and transmits the rotation speed to the main slide plate 7, together with the reduction gear B9. 11 is a mode sW used to detect the position of the main slide plate 7 and control the stop position of the main slide plate 7. 15 is an eject cam follower that is rotated clockwise by the main slide plate 7 in the eject (cassette lock release) mode, 16 is a rod that transmits the operation of the eject cam follower 15, and 17 is a rod that controls the clockwise rotation of the eject cam follower. The eject arm is received through 16 and rotates counterclockwise to operate the cassette lock release member, and 18 is the cassette lock release member, which releases the cassette lock by moving to the right in Fig. 5. It is a cassette lock release.

2o is an eject spring provided to hold the eject cam follower 16 in a predetermined position in a mode other than the cassette lock release mode, and applies a counterclockwise moment; 3o is a stopper provided to limit the eject cam follower 15 to a predetermined position; 31 is a cam follower pin provided on the eject cam follower 15. 2
7 is the ring 10. The sw arm B128, which is installed to detect the rotation angle and position, is rotated 40 times by the sw arm.
5t (B) performing QNloFF, 29 is SW arm B2
This is the SW spring B that always applies a force in the clockwise direction to the ring 7 and operates the SW arm B27 following the shape of the ring 1.

The operation of the cassette lock release mechanism of the conventional magnetic recording/reproducing apparatus configured as described above will be described below.

6 to 9 show different operations of releasing the cassette lock in the conventional magnetic recording/reproducing apparatus.

First, the states in each figure will be explained. FIG. 6 shows the running mode, FIG. 7 shows the unloading mode, FIG. 8 shows the standby mode, and FIG. 9 shows the cassette lock release mode.

Next, the state of the mechanism in each figure will be explained.

The running modes in Figure 6 include recording, playback, and fast forwarding.

This indicates the mode in which the tape is run or stopped, such as rewinding or stopping, and the main slide plate 7 normally has multiple positions, but for the sake of simplicity, here we will use the running mode as position C. express. In addition, the state of the ring 1 in the running mode is the state where the tape is attached, and the cam groove provided in the ring 1 is in the O
It coincides with line A. Since this cam groove and the OA line match, the SW arm 4 can rotate according to the cam groove 5W.
(A) 5 is in the ON state.

The unloading mode shown in FIG. 7 is a mode in which the loaded tape is wound into the cassette again.

First, the main slide plate 7 moves to the D position in order to wind up the tape. Furthermore, in this state, while winding the tape on a reel stand (not shown), ring 1 is moved from OA to OB.
The standby mode shown in FIG. 8 is entered. The above section is called unloading mode.

The standby mode in FIG. 8 is the state when unloading is completed, as described above. At this time, the main slide plate 7 is stopped at position D, which is the unloading position, and the cam groove provided in the ring 1 is
It stopped at a point that coincided with line B. This cam groove and OB
When the lines match, the SW arm B27 (#) rotates according to the cam groove, and the SW (■) 28 is in the ON state.

The cassette lock release mode shown in FIG. 9 is a state in which the main slide plate 7 is moved to the E position from the standby mode shown in FIG. 8, and at this time the cassette loaded with tape is removed from the magnetic recording and reproducing apparatus.

Finally, a series of operations for unlocking the cassette will be explained using FIGS. 5 to 9.

From the tape running mode, the main slide plate 7 is first moved from the C position to the C position by the drive motor 8. Next, the tape winding operation of the reel stand (not shown) is started, and the ring 1 begins to rotate counterclockwise.

First, the rotation of the ring 1 causes the cam groove of the ring 1 to come off the Om line.

As a result, the SW arm (mm) 4 is pushed out from the cam groove and rotates, turning off the SW (mm) 5. The ring 1 continues to rotate further and eventually comes to a position where the cam groove coincides with the OB line. When the cam groove coincides with the OB line, the Sw arm CB) 27 rotates clockwise according to the cam groove and enters the cam groove.

At the same time, sw arm )27 presses sw's)28, and 5W
(B) 28 is in the ON state. When 5W(B) 28 is turned on, power is no longer supplied to the loading motor 2, and the ring 1 stops. Next, the first drive motor 8 starts rotating again, the main slide plate 7 starts moving, and the mode changes from position D to position E. At this time, the right end of the main slide plate 7 is the eject cam follower 1.
5, and rotates the eject cam follower 15 clockwise. on the other hand,
The other end of the eject cam follower 15 is connected to an eject arm 17 via a rod 16, and the eject arm 17 rotates counterclockwise.

Due to this rotation of the eject arm 17, the cassette lock release 18 moves to the right in FIG. 6, the cassette lock (not shown) is released, and the cassette is removed from the magnetic recording/reproducing apparatus.

Problems to be Solved by the Invention However, in the above configuration, since the main slide plate 7 has an eject position, the main slide plate 7 becomes larger and heavier, and the mode switch for determining the position becomes larger. Problems such as these have been a hindrance to reducing the size and weight of the entire device.

Furthermore, in the conventional system, two motors 2°8 were used in the device, but in order to reduce the cost, by using a planetary gear and a charge spring to balance the load, a single motor can be used to drive ring 1 and the main motor. The slide plate 7 can be driven. However, when releasing the cassette lock, as described above, the main slide plate 7 is driven once, stopped, the ring 1 is rotated, rotated to a predetermined position, stopped, and the main slide plate 7 is again driven. It has to be driven again to release the cassette lock, and the switching mechanism is complicated because it has to be switched twice.There is also a problem with the reliability of the device, and there are few benefits. Ta.

In view of the above-mentioned problems, the present invention provides a boat having one or more posts in conjunction with a cassette lock release means for releasing the cassette lock, so that the main slide plate,
Furthermore, the present invention provides a magnetic recording/reproducing device which realizes miniaturization of the mode switch and simplification of switching between the driving force of the tape loading mechanism and the main slide plate, thereby making it possible to reduce the size and weight of the device.

Means for Solving the Problems In order to solve the above problems, the present invention includes a boat having at least one post, and a tape being wound around a cylinder provided with a head by moving the boat. and a cassette lock release means for releasing the cassette in which the tape is stored, and a cassette lock release means for releasing the tape wound around the cylinder, and the boat is moved by the boat moving means. After the tape wound around the cylinder is removed, the board operates the cassette lock release means to release the cassette from being held.

According to the above-described structure, the present invention allows the boat to release the cassette by interlocking the cassette lock release means after the boat removes the tape wound around the cylinder by the boat moving means. It becomes possible to eliminate the position for releasing the cassette lock in the main slide plate and mode switch.

EXAMPLES Below, magnetic recording and reproducing apparatuses according to embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a configuration diagram of a first embodiment of the present invention.

In Figure M1, 12 is a post that serves as a guide when the tape (not shown) runs; 13 is an inclined post that changes the running direction of the tape and guides the tape to a predetermined height and direction; and 14 is the above-mentioned post 12 and inclined post 13. On a boat equipped with
It moves when the tape is installed and is fixed in place. 1 is a ring that is a boat moving means that drives a boat 14 and moves it to a predetermined position to pull out the tape from a cassette (not shown) and put the tape in a mounted state; 2 is a drive source for the ring 1; a loading motor; 3 a deceleration gag that decelerates the rotation of the loading motor 2 and transmits it to the ring 1; 4 a switch (9W) and an arm (A) provided to detect the rotation angle and position of the ring 1;
5 is a 5W (A) that performs 0N10FF by the rotation of the SW arm (mu) 4, 6 is a SW arm (mu) that follows the shape of the ring 1 by constantly applying a counterclockwise force to the sw arm body) 4. ) 4 is the SW spring (A), R is the main slide plate that drives and operates the mechanical parts in each mode of the magnetic recording/reproducing device, 8 is the drive motor that is the drive source of the main slide plate 7, 9 is the drive motor Reduction gear B10 decelerates and transmits the rotation of drive motor 8 together with reduction gear B9, and reduction gear C111 that transmits the rotation to main slide plate 7 detects the position of main slide plate 7 and rotates the main slide. This mode SW is used to control the stopping position of the plate 7, and has irregularities corresponding to the number of the above-mentioned modes formed on the outer periphery.

Next, the following elements are configured as the cassette lock release means. 16 is an eject cam follower that is rotated clockwise in the cassette lock release mode by the main slide plate 7; 16 is a rod that transmits the operation of the eject cam follower 15; and 17 is a rod that transmits the clockwise rotation of the eject cam follower 15 to the rod 16. 18 is a cassette lock release member, which releases the cassette lock by moving to the left in FIG. 1. cassette lock release, 20 is provided to hold the eject cam follower 16 in a predetermined position in a mode other than the cassette lock release mode, and is an eject spring that applies a counterclockwise moment to the eject cam 7 follower 15; 19 is a cassette lock release; This is an eject switch provided to detect the position.

The operation of the magnetic recording/reproducing apparatus configured as described above will be described below with reference to FIG.

Since the state of the mechanical parts in each mode is almost the same as in the conventional case, a series of operations for unlocking the cassette will be explained using FIG.

From the tape running mode, the main slide plate A is first moved by the drive motor 8, and then moves to the unloading mode. Next, the tape winding operation of the reel stand (not shown) is started, and the ring 1 begins to rotate counterclockwise. First, by rotating the ring 1, the cam groove 1 of the ring is moved from above the OA edge line.
a comes off.

As a result, the SW arm (A) 4 is pushed out from the cam groove 1a and rotates, turning the SW arm (A) 6 OFF.

Ring 1 then continues to rotate counterclockwise. At this time, the boat 14 is in contact with the ring 1 and is receiving driving force.
rotates in the same direction as ring 1 while contacting ring 1,
The tip of the boat 14 moves to a position where it coincides with the OB edge line. Due to this movement of the boat 14, the boat 14 and the eject cam follower 15 come into contact with each other, and the eject cam follower 15 rotates clockwise. On the other hand, the other end of the eject cam follower 16 is connected to the eject arm 17 via the rod 16, and the eject arm 17 rotates clockwise. This eject arm 1
70 rotations, the cassette lock IJ IJ-s 18 moves to the left in FIG. 1, the cassette lock (not shown) is released, and the cassette is removed from the magnetic recording/reproducing apparatus.

At this time, cassette lock release 18 is eject SW1.
9, and the eject SW 19 is turned on. The rotation of the loading motor 2 is stopped by this ON operation of SWls.

In this way, the cassette lock release is completed by one movement of the main slide plate 7 and one rotation of the ring 1.

As described above, according to this embodiment, the cassette lock release operation can be simplified by driving the arm mechanism capable of releasing the cassette lock by the boat driven by the tape mounting mechanism. Furthermore, by removing the cassette lock release mode from the main slide plate 7, the main slide plate 7 can be made smaller with a small stroke (
11 in FIG. 1 and l in FIG. 5 can be plotted.

Furthermore, the number of uneven shapes on the outer periphery is reduced due to the deletion of the cassette lock release mode of mode SW11) Mode SW
11 can be downsized. All of these simultaneously lead to weight reduction and cost reduction.

Next, it will be explained that mode 5W11 enables miniaturization.

FIGS. 2 and 3 show mode SW of a magnetic recording/reproducing device aimed at thinning.

d2 and h2 shown by broken lines in FIG. 2 are the external dimensions of mode 5W11 including the conventional cassette lock release mode, while dl and hl shown in FIGS.
The mode SW11 indicated by the solid line is the mode SW of this embodiment in which the cassette lock release mode is deleted. As shown in Figure 3, the miniaturization of Mode 5W11 supports mechanical parts,
The device can be embedded into the substrate 21 to be fixed without making the hole so large that it reduces the strength of the substrate, and the entire device can be made thinner. Also, even if the mode SW is on a different board from the row in FIG. 3, the outer diameter d of the mode SW
The miniaturization of No. 1 facilitates the design of other mechanical parts.

A second embodiment of the present invention will be described below with reference to the drawings.

FIG. 4 is a block diagram of a second embodiment of the present invention.

In the figure, 1 is a ring, 2 is a loading motor 7, a main slide plate 1, 11 is a mode SW1 release, 19 is an eject switch, and 20 is an eject spring, which is the same as the structure shown in FIG.

The difference from the configuration shown in FIG. 1 is that the drive motor 8 is eliminated, and a single loading motor 2 is used to drive the ring 1, which is the tape mounting mechanism, and the main slide plate 7, which switches the mode. In the different parts of the structure, 3 is a reduction gear l, which reduces and transmits the rotation of the loading motor 2. 23 is a worm that rotates by receiving the rotation of the reduction gear person 3 with a spur gear provided at one end; 24 is a worm wheel that rotates by converting the rotation direction of the worm 23 into an orthogonal axial direction; Worm wheel 24
The reduction gears B and 10 that are integrated with the ring 1 and transmit the rotation are the reduction gears C that transmit the rotation of the reduction gear B9 to the ring 1 while decelerating the rotation. On the other hand, 22 is a slide plate which supports the rotation of the worm 23 and is movable up and down in FIG. 4 by utilizing the characteristic that the worm 23 and the worm wheel 24 are engaged with each other by a helical bar. 26 is a transmission gear that transmits the vertical movement of the slide plate 22;
is a transmission gear B that transmits the rotation of the transmission gear man 26 to the main slide plate 7. 30 is a stopper that stops the movement of the slide plate 22; 32 is a blocking arm that switches between the rotation of the ring 1 and the operation of the sliding plate; 33 is a blocking arm spring that forces the blocking arm 32 to always follow the shape of the ring 1; be.

The operation of the magnetic recording/reproducing apparatus configured as described above will be described below.

In the tape running mode, the loading motor 2 first rotates and drives the slide plate 22 in the direction of the arrow (downward in the figure). At this time, the blocking arm 32 is attached to the cam groove 1 in the ring 1.
&, the ring 1 and the worm wheel 24. Reduction gear B9 and reduction gear C10 do not rotate. Eventually, when the slide plate 22 moves further to the unloading mode position E, the blocking arm 32 is no longer restricted by the slide plate 22, rotates clockwise, and stops cocking the ring 1.

In this state, the slide plate 22 comes into contact with the stopper 30 and stops, and the main slide plate 7 also stops at the D position at the same time.

Next, the free ring 1 begins to rotate counterclockwise. The subsequent steps are the same as in the first implementation row shown in FIG.

As described above, by driving the arm mechanism that releases the cassette lock by the boat driven by the tape loading mechanism, in addition to the effects of the first implementation row, the main slide that switches between driving the tape loading mechanism and switching modes. By using only one arm, it is easily possible to drive the plate with one motor. This is because the cassette lock can be released by the boat driven by the tape mounting mechanism after the main slide plate has stopped.

In the second implementation row, there is a mechanism component for switching between two modes: the slide plate 22 and the main slide plate 70, but this is a matter of arrangement, and it is also possible to configure it with only the slide plate 22.

Note that in the first and second implementation series, a ring is used for the tape and slag mechanism, but the present invention is not limited to a ring, and a cam gear and an arm that is driven together with its rotation may also be used.

Effects of the Invention As described above, according to the present invention, it is possible to eliminate the position for releasing the cassette lock in the main slide plate and the mode SW, so the series of cassette lock release mechanisms can be simplified, and the mode switching Mechanical parts can be made smaller and thinner. Furthermore, by simplifying the tape loading mechanism and mode switching mechanism, it is possible to miniaturize the device and use a single motor as the drive source, which, together with the simplification of operation, increases the reliability of the operation of the magnetic recording and reproducing device. It has the following effects.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a first embodiment of the magnetic recording/reproducing apparatus of the present invention, FIGS. 2 and 3 are side views of a mode switch used in the same embodiment, and FIG. FIG. 6 is a plan view showing a second embodiment of the magnetic recording and reproducing device, FIG. 6 is a plan view showing a conventional magnetic recording and reproducing device, and FIGS. 6 to 9 show the states of each mode of the conventional magnetic recording and reproducing device. FIG. 1...Ring, 2...Loading motor, 3...Reduction gear king, 4...SW
Arm (A), 5...SW (mu), 5...
...5t (A), 6...SW spring (A), 7.
... Main slide plate, 8 ... Drive motor, 9 ... Reduction gear B110. ...Reduction gear C111...Mode SW, 12...
・Post, 13... Inclined post, 14...
... Ho), 15. A... Eject cam follower, 1
6...°゛°°rod 7...Eject arm, 18...Cassette lock release, 19.
...Eject SN, 20...Eject spring, 22...Slide plate, 23...
・Worm, 24... Worm wheel, 25
...Transmission Gear Emperor, 26... River Transmission Gear B, 3
0...stopper, 32...blocking arm, 33...blocking arm spring.

Claims (1)

[Claims] a boat having at least one post; and a boat moving means for winding the tape around a cylinder provided with a head or removing the tape wound around the cylinder by moving the boat. cassette lock release means for releasing the holding of the cassette in which the tape is stored, and after the boat has released the tape wound around the cylinder by the boat moving means, the boat is A magnetic recording and reproducing apparatus characterized in that the cassette lock release means is activated to release the cassette from being held.