JPS5841571B2 - Jikiki Rokusai Seisouchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a magnetic recording/reproducing device, and more particularly to a cassette attaching/detaching device thereof.

A tape player that is inserted into the cassette storage compartment with the cassette's magnetic tape window on either side in the front or rear direction.
When used as an in-dash type (sometimes in-dash type), the size of the operation part (horizontal dimension) is large, so it may not fit on the dash board of a car.In order to make the device more compact, it is necessary to move the tape window of the cassette to the left or right. It is desirable to insert the

However, even with this type, the cassette cannot be installed in the playing position unless it is pushed all the way into the cassette compartment with the fingers of the hand, especially in types such as auto-reverse tape players where the mechanism is located at the front of the device. In,
It is nearly impossible to push the cassette into the playing position with your fingers.

The present invention was invented under these circumstances, and its distinctive feature is that when a cassette is pushed into the cassette storage section, it is automatically pulled into the device after a certain point and is loaded into the tape playing position. Furthermore, the cassette can be easily ejected.

The present invention will be described in detail below with reference to the drawings.

The drawings all show one embodiment of the present invention, and FIG. 1 is a plan view of the magnetic recording/reproducing device with the outer casing removed, and FIG.
The left side view of the figure, Figure 3 is the front view of Figure 1, Figure 4 is the front view of Figure 3.
Figure 5 is a back view of Figure 1, Figure 6 is a cross-sectional plan view taken along line A-A in
7 and 7 are right side views of the main parts of FIG. 1 for explaining the cassette mounting process, and FIGS. 8 to 10 and 12 are for explaining the related operations between the cassette and the cassette moving member of the cassette storage box. Figure 1 is a right side view of the main part in Figure 1, Figure 11 is a perspective view of the main part in Figure 1 for explaining the cassette loading process, Figure 13 is a diagram of the main part in Figure 2 for explaining the cassette ejection process, and Figure 14 is 2 is a diagram of the main part of the cassette for explaining the loading process of the cassette, FIGS. 15 to 24 are diagrams of the main part of the cassette to explain the mechanism such as magnetic tape drive and operation switching, and FIGS. 25 to 27 are the main parts of the cassette. 28 is an enlarged view of the right side of FIG. 1 showing a series of tape drive systems, and FIGS. 29 and 30 are views of the magnetic recording and reproducing system of the present invention. FIG. 2 is a circuit diagram of main parts when the device is combined with a radio receiver.

(1. Attaching the cassette) 1 (FIGS. 1 and 11) is a chassis, which has a U-shape with vertical walls on both sides on a plane.

2 is a cassette storage box, with vertical sliding members 29°30 on both sides.
U-shaped sliding grooves 1b and I on both sides of the chassis 1
The convex portions 29b of the members 29 and 30 of the vertical sliding portion
, 30b slide up and down.

3 (FIGS. 2 and 6) is an elevating member, and the U-shaped grooves 3a and 3c of the member 3 are rotatably mounted on shafts 13 and 14 set on the outside of both side surfaces of the chassis 1. springs 4, 5
is biased in the A direction.

Further, the vertical sliding member 2 is inserted into the U-shaped grooves 3b and 3d of the same member 3.
The convex portions 29a and 30a of 9.30 are associated with the vertical movement of the fitted Hecassette storage box 2.

6 (FIGS. 1 and 11) is a cassette moving member that slides through a long hole 2d on the top surface of the cassette storage box 2.

Now (see FIGS. 8 to 12), when the cassette 144 is inserted through the insertion opening 2a of the cassette storage box 2, the cassette 144
The protrusion 6 of the cassette moving member 6 is
The front slope of b is pushed up, and the protrusion 6b is pushed up into the cassette 14.
The cassette 144 is pushed in while contacting the upper surface of the cassette moving member 6, and the rear end 144b touches the rear bent wall 6a of the cassette moving member 6.
When pressed, the protrusion 6b of the cassette moving member 6 is fitted into the reel shaft hole 144a of the cassette 144.

When the cassette 144 is further pushed in, the cassette moving member 6 slides inside the elongated hole 2d of the cassette storage box 2 and advances to the back, but here, one fulcrum is the bin 10 set on the cassette storage box 2.
In addition, there is a tumbler spring 9 whose fulcrum is connected to the cassette moving member 6, and at the beginning of the cassette insertion, it moves against this tumbler spring 9, but when the fulcrum of the tumbler spring 9 passes the shortest distance, the tumbler spring 9 is suspended. Cassette 1 due to power
44 is automatically retracted to the rear (Fig. 9).

As soon as the cassette is pulled in (FIG. 11), the rear end 144b of the cassette touches the cut-and-raised piece 1g of the right side wall of the chassis 1.

1h as a guide, the protrusion 7b of the locking member 7 that slides is pressed against the spring 8 (Fig. 1), and the locking portion 7a is pressed against the spring 8 (Fig. 1).
and the lower end of the vertical sliding member 30 is released from the sliding portion 30b.

Thus, the cassette 144 is moved from the first position (FIG. 6) to the second position (FIG. 7) by the rotational force of the elevating member 3 in the A direction due to the weight of the cassette storage box 2 and the elastic force of the springs 4 and 5. ).

Here (FIG. 10), the tip 6c of the bent wall of the cassette moving member 6 comes into contact with the cut-and-raised slope 1d of the chassis 1, and the protrusion 6b is lifted up. This prevents it from coming into contact with the clutch portion 61a of the table 61.

The installation of the cassette is thus completed.

(2. Movement of head board) When the cassette 144 is lowered to the second position (second
5 to 27)) The lower surface portion 144c of the cassette is
The protrusion 134b of the head board locking plate 134, which is fitted onto the shaft 142 at the cut and raised pieces 1n and 1p of the chassis 1 and biased clockwise by the torsion spring 135, is moved by the torsion spring 13.
5, the end surface 43f of the head substrate 43 on which the magnetic head 58 etc. are mounted and the end surface 134 of the locking plate 134.
The lock with a is released.

The head board 43 (see FIG. 4) has a guide pin 50 planted on the chassis 1 and a U-shaped groove 43a of the head board 43 (
(center of FIG. 4) and pins 51 planted on the head substrate 43
The sliding guide U-shaped groove 1a (center of the left side in FIG. 4) of the chassis 1 is used as a guide to allow sliding from side to side.

Therefore (see Figure 5), the shaft 1 installed on the chassis 1
31 (right side in the figure) and is biased in the direction B in FIG. 5 by a spring 124.
23, the pin 51 provided at the curved end of the lever 123 rotates clockwise, and the head substrate 43 in FIG. 4 slides in the direction C to enter the tape playback state.

Reference numeral 141 (upper left corner in FIG. 4) is a slide switch, in which the groove 28a of the switch changeover lever 28, which is rotatably fitted onto the shaft 70 set on the chassis 1, is connected to the cut-out portion 43b of the head board 43. Since the switch switching lever 28 rotates counterclockwise as the head board 43 moves in the C direction, the cassette switches the switch 141 from OFF to ON using the elastic member 28f on the switch switching lever 28. 144 is positioned by cassette position regulating pins 74, 75 planted on the chassis 1 and shafts 24, 100.

(3, 2-direction constant speed feeding mechanism) A motor 138 (see Fig. 5) mounted on the chassis 1 as a magnetic tape drive means is connected to a coaxial pulley 129.
The flywheels 36, 37 are driven via the first drive belt 130, and the capstan shafts 72, 72, coaxial with the flywheels 36, 37 are driven in the magnetic tape playback state.
Head substrate 43 provided opposite to 73 (FIG. 4)
The pinch rollers 46 and 47 are rotatably fitted on the shafts 56 and 57 of the pinch roller holder 44 and 45 that are pivotally mounted on shafts 54 and 55 that are set up on the feed at a constant speed in the direction.

The flywheel 36 has a belt groove of a large diameter part 36b and a small diameter part 36a, and the large diameter part 36b of the flywheel 36 passes from the pulley 129 of the motor 138 to the pulley 132.
The rotation is transmitted to the winding pulley 67 via the second drive belt 133 after being decelerated by the small diameter portion 36a.

The flywheels 36 and 37 are rotatably supported by a support plate 38 (FIG. 28), and the backlash in the thrust direction can be adjusted using an adjustment screw 38a.

Further, the rotational force of the take-up pulley 61 is transmitted through a take-up gear 63 (FIG. 4), which is disposed coaxially with the pulley 67 and frictionally engages with it, to the turntable 62 in the case of forward constant speed feeding of the magnetic tape. In the case of constant speed feed in the reverse direction, the idler gear is The rotation is transmitted to the gear portion 61b of the turntable 61, which is always meshingly engaged with the turntable 59.

When the magnetic tape is fed at a constant speed in the forward direction, a pinch roller 74 is pressed against the capstan 73 by a spring 53, as shown in FIG.
6 is a pin 4 planted in the pinch roller holder 44.
8 is biased clockwise in FIG. 15 at the end 42c of the switching sliding member 42, so that it is spaced apart from the capstan 72.

In addition, when performing constant speed feed in the reverse direction, as shown in FIG. Since the pin 49 located at the end 42d of the switching sliding member 42 is biased counterclockwise in FIG. 17, it is spaced apart from the capstan 73.

(4, 2-direction constant speed feed switching mechanism) The switching sliding member 42 (Figs. 15 and 17) moves the guide pins 68, 69 planted in the chassis 1 in the front-rear direction using the elongated holes 42a, 42b. Sliding.

Due to the sliding movement, the winding gear 63 and the winding pulley 67
The springs 116 and 117 stretched between the cut-and-raised part 64a of the winding gear holder 64 equipped with the winding gear holder 64 and the cut-and-raised parts 42g and 42h of the switching sliding member are bent, and the difference in force between the two springs is used to The take-up gear holder 64 fitted on the shaft 66 installed in the chassis 1 is rotated, and the take-up gear 63 is engaged with the gear part 62b of the turntable 62 or the gear part 59a of the idler carrier 59 as described above. I try to do that.

In order to keep the amount of engagement constant at this time, the movement of the pin 65 set in the winding gear holder 64 is restricted on the side facing the hole 1 m (center in FIGS. 15 and 17) of the chassis 1.

Next, a method of sliding the switching sliding member 42 will be explained using FIGS. 15 to 17.

In FIG. 5, magnetic discs 112 and 113 are mounted on the same axis of the turntable 61.62 so as to rotate at the same time as the turntable 61.62, and magnetic discs 112 and 113 are mounted on the chassis 1 in close proximity to the magnetic discs 112 and 113. Reed relay 11
The solenoid rod 139a of the solenoid 139 is attracted by energization due to electrical interaction with the solenoid 139 and direct energization.

A switching related member 108 is attached to one end of the solenoid rod 139a.
is rotatably fitted with a pin 107.

Pins 109 and 110 are installed in the switching-related member 108, and the pins 110 are always biased in the upward direction by a spring 111.

That bias keeps the pin 109 in place at the end 1g of the hole 1g in the chassis 1.

(Refer to the enlarged exploded view of FIG. 16) Furthermore, a switching rotation member 8T and a switching guide plate 88 are rotatably fitted to a shaft 89 mounted on the chassis 1 in an overlapping manner.

On the other hand, the switching swinging member 91 is rotatably fitted to the shaft 50 set on the chassis 1, and a pin 90 set on the switching swinging member 87 is fitted into the U-shaped groove 91a. are doing.

Therefore, when the magnetic tape is running in the forward direction (FIG. 15), the solenoid rod 139 is energized, and the solenoid rod 139a and the switching-related member 108 are connected to the spring 111.
When the pin 109 on the switching-related member 108 is guided toward the groove 1 of the chassis 1 by the tip 88a of the switching guide plate 88 facing the switch-related member 108, the pin 109 is guided toward the groove 1 of the chassis 1
The left side surface 88b and the notch 87a of the switching rotation member 87 are brought into contact with each other to rotate them in the clockwise direction.

When the solenoid 139 is de-energized, the switching related member 10
8 is returned to the home position by pulling the pin 109 by the spring 111.

By rotating the switching rotation member 87 in the clockwise direction,
The pin 90 rotates the switching swinging member 91 counterclockwise about the shaft 50, and the pin 118 planted on the switching swinging member 91 rotates the U-groove portion 42f of the switching sliding member 42. A pin 49 that operates in the forward direction (downward in FIG. 15) and is planted in the pinch roller holder 45 at the front end 42d.
is pushed up, the pinch roller 47 is separated from the capstan 73, and the tape running is switched to the reverse direction feeding state (FIG. 17).

Here, when the solenoid 139 is energized again, the pin 109 on the switching related member 108 is moved to the tip 8 of the switching guide plate 88.
8a to the groove 11 of the chassis 1, and in the opposite direction to the above-mentioned reverse direction feed, it abuts the right side surface 88c of the switching guide plate 88 and the notch 8γb of the switching rotation member 87, and rotates them in the counterclockwise direction. Rotate to.

When the solenoid 139 is de-energized, the switching-related member 108 is returned to its home position as described above.

As the switching rotation member 87 rotates counterclockwise, the pin 90 rotates the switching swing member 91 clockwise about the shaft 50 and is planted on the switching swing member 91. The U groove 42f of the switching sliding member 42 is operated rearward (upward in FIG. 17) by the pin 118, and the pin 48 planted in the pinch roller holder 44 is pushed up at the rear end 42e. The pinch roller 46 is separated from the capstan T2, and the tape running is switched to the forward feeding state (FIG. 15).

As described above, each time the solenoid 139 is energized, the tape running can be alternately and repeatedly switched between the forward constant speed feeding state and the reverse constant speed feeding state.

Note that the left and right end surfaces of the hole 1S in the chassis 1 (FIGS. 15 and 1T right side and FIG. 16), the lower protrusion 88d1 of the switching guide plate 88, the protrusion 92a of the leaf spring 92, and the switching guide plate 88 The rear end 88e positions the switching guide plate 88 in the forward and reverse tape running states, and the solenoid 139 is de-energized and the switching-related member 10
8 returns to its original position, the switching guide plate 88 remains in that position.

Reference numeral 119 (bottom left in FIGS. 15 and 17) is a locking plate for the switching sliding member 42, which is connected to the shaft 120 installed on the chassis 1.
(see FIG. 15), and is always biased clockwise by a spring 122.

Therefore, the switching sliding member 42 is fixed in the forward and reverse tape running states by the engagement between the pin 121 set on the locking plate 119 and the protrusion 42e of the switching sliding member 42. As described above, even if the solenoid 139 is de-energized and the switching-related member 108 returns to its original position, the switching sliding member 42 is maintained at that position.

Further, reference numeral 40 (fixed 15th) is an actuation plate, which is fitted to the rotation shaft 39 mounted on the chassis 1. On the actuation plate 40, a slide switch 140 is turned ON.

A pin 41 for OFF switching is installed, and holes 40b, 40e and a groove 40a for stroke adjustment are provided, and the tip 40d engages with a cut-and-raised groove 42g of the switching sliding member 42.

Therefore, by sliding the switching sliding member 42 back and forth, the slide switch 140 can be turned on and off.

(5, Rapid forwarding mechanism) To rapidly forward the tape in the forward (reverse) direction (see Figure 5), the rotation from the flywheel 37 (36) is controlled by the rapid forwarding idler B.
84 (83), and the outer peripheral portion 62C (61C) of the turntable 62 (61) by the fast-forward idler A8G (79) (Fig. 4) coaxial with the idler B84 (83).
) and rotates the hub of the cassette 144, which is engaged with the black portion 62a (61a) of the turntable 62 (61), thereby performing fast forward (reverse) forward movement.

The fast-forward idler B84 (83) and the fast-forward idler A
30 (79) is mounted coaxially with the shaft 82 (81) as described above, and is fitted into the rapid feed arm 78 (77) so as to be rotatable at the same time.

The fast-forwarding arm 78 (17) is biased in the clockwise direction by a spring 86 (85) (see FIG. 19) and is rotatably fitted onto the shaft 106 (105) set on the chassis 1. However, in the tape playing state, that is, the tape constant speed feeding state, the slope portion 76b of the fast-forwarding lever 76, which is rotatably fitted to the shaft 89 mounted on the chassis 1,
(76a), the protrusion 7 of the rapid forwarding arm 78 (77)
8b (77b) by the spring 86 (85), and fast forward idler A30 (79) from the flywheel 37 (36) and turntable 62 (61).
and fast-forward idler B84 (83) are both moved apart at the same time.

At this time, the fast forwarding lever 76 is moved by the spring 86.
Torsion spring 98 with a force greater than that of (85)
(See Figure 20) and the shaft 97 installed on the chassis 1.
, the left and right end surfaces of the cut-and-raised portion 1e of the chassis 1 and the pin 143 on the fast-forward locking plate 103 lock the fast-forward locking plate 103.
It is also positioned neutrally.

Next, the fast forward state will be explained using FIGS. 19 and 20.

Reference numeral 15 (19) denotes a fast forward sliding plate for forward (reverse) fast forwarding, and when a button 147 (149) fixed to this is pressed against the compression spring 16 (20), the rapid forward sliding plate 15 The cut-and-raised protrusion 15a (19a) of (19) comes into contact with the slope part 103c (103d) of the fast-forward locking plate 103, and when pressed further, the fast-forward locking plate 103 is planted on the chassis 1, but the idle pin 99 and 100 as a guide,
It slides to the right (left) against the elasticity of the torsion spring 98, and its locking tongue 103a (103b) engages the raised protrusion 15a (1') of the fast-forward sliding plate 15 (19). 9i
a) is locked.

By operating the fast-forward sliding plate 15 (19) as described above, the fast-forward locking plate 103 moves to the right (left), and the pin 143 moves the U-shaped groove 76c of the fast-forward lever T6 counterclockwise. (clockwise), the slope portion 76b (76a) of the fast-forwarding lever 16 escapes and releases the locking of the projection 78b (77b) of the fast-forwarding arm 7B (77), so that the spring 86 (85), the rapid feed idler B84 (83) is activated by the flywheel 37 (36).
), the fast-forward idler A30 (79) is pressed against the turntable 62 (61), and enters a fast-forward state in the forward direction (reverse direction).

Next, the operation of the head substrate 43 in the fast forward state will be explained using FIG. 21.

Reference numeral 102 denotes a rotary plate having an L-shape, which is rotatably fitted onto the shaft 101 set on the chassis 1, and one side of which is placed on the fast-forwarding locking plate 103 and connected to the pond side 102b. is fitted into the pin 51 of the head substrate 43.

Reference numeral 104 indicates a related member, which is a shaft 95 installed on the chassis 1.
It is rotatably fitted into the rotary plate 102 and placed on the rotary plate 102 .

A pin 137 is installed on the rotating plate 102,
The elongated hole portion 104b of the related member 104 is fitted.

Therefore, in the case of fast forwarding in the forward direction, the pressing of the fast forwarding sliding plate 15 causes the cut and raised protrusion 15a to
4a to rotate clockwise about the shaft 95 as a fulcrum, and this rotation further presses the pin 137 in the elongated hole 104b to rotate the rotating plate 102 counterclockwise, The pin 51, that is, the head substrate 43 is moved to the left by the side portion 102b of the rotating plate 102.

This movement causes the guide groove portion 43e of the head substrate 43 to
The pin 65 of the winding gear holder 64 (shown in FIG. 17.18) is guided to separate the winding gear 63 from the idler gear 59 or the gear part 62a of the turntable 62, and the constant speed tape feeding state is stopped. let

Furthermore, the pins 48 and 4 of the pinch roller holders 44 and 45 are connected to the right ends of the holes 43f and 43g of the head substrate 43.
9 to the left in FIG. 21 to separate the pinch rollers 46, 47 from the capstan 72°T3.

Also, in the case of reverse direction fast forwarding, the cut-and-raised protrusion 19a presses the end 102a of the rotating plate 102 due to the suppression of the fast-forwarding sliding plate 19, causing the rotating plate 102 to rotate counterclockwise. As in the case of forward rapid forwarding, the winding gear 63 is set to neutral, and the pinch rollers 46 and 47 are moved to the capstans 72 and 73.
Separate from.

As described above, the pinch roller 47 (46)
The end portion 43d (43e) of the head substrate 43 is connected to the head substrate 43 so that the timing of detachment from the capstan 73 (72) and the crimping of the fast-forward idler A30 (79) to the turntable 62 (61) are almost simultaneous. Rapid forward arm 7B
The bias of the protrusion 78a (77a) of (77) is locked.

When the head board 43 moves to the point where the pinch roller 47 (46) separates from the capstan 73 (72), the protrusion of the fast-forwarding arm 78 (77) moves from the end 43d (43e) of the head board 43 73a (77a
) is released, and the fast-forward idler A30 (79) is pressed against the turntable 62 (61).

Next, regarding canceling the fast-forwarding state, see Figures 19 to 21.
This will be explained using figures.

First, in the case of manual release, the button 148 is pressed against the compression spring 18, and the forward direction (
in the opposite direction), the slope portion 103 of the fast-forwarding locking plate 103
e (103f) and move it to the right (left) to lock the locking tongue 103a (103b) with the cut and bent protrusion 15a (19a') of the rapid-forward sliding plate 15 (19). is released, and the restoring force of the torsion spring 98 returns the fast-forwarding locking plate 103 to its original neutral position.

At the same time, the head board 43 also moves to the right and enters a constant speed feeding state of the tag tape.

Next, the case of automatic cancellation of the fast forward state will be explained with reference to FIG.

Reference numeral 93 is a rapid-forward release plate, which is attached to a shaft 94 installed on the chassis.
, 95 as guides, and is biased forward by a spring 96.

When the tape is rapidly forwarded, the end of the tape is moved between the magnetic disk 113 (112) and the reed relay 115 (115) (see FIGS. 5 and 28).
14), and the solenoid rod 139a of the solenoid 139 is attracted.

At the same time, the pin 1-1 on the switching related member 108
1 pulls the bent portion 93d of the fast-forward release plate 93 against the spring 96, and the bent portion 9 of the fast-forward release plate 93
3e, the slope portion 1 of the fast-forward locking plate 103 in the fast-forward state
Press 03g (103h) to move the fast-forward locking plate 103 to the right (left), cancel the fast-forward state in the same way as when manually releasing it, and return to the constant-speed tape feeding state in the opposite direction to the fast-forward direction. do.

The fast-forward sliding plate 15, 19 and the fast-forward stop sliding plate 11 are slidably held by the chassis 1 and the operating member support 136, respectively.

(6, temporary stop mechanism) FIGS. 22 and 23 show the temporary stop mechanism.

When the button 150 fixed to the temporary stop sliding plate 21 is pressed against the spring 128 (shown in FIG. 5), the guide part 1w of the chassis 1 and the shaft 125 installed in the chassis 1 are used as guides to temporarily release the button 150. The stop sliding plate 21 slides.

A pose lock cam 127 is rotatably fitted to the shaft 125, and is held down by the temporary stop member 21.
Further, a pin 126 set on the temporary stop sliding plate 21 is prevented from rotating by a groove 127a of the pause lock cam 127.

When the temporary stop sliding plate 21 is pressed in this state (tape constant speed feeding state) as described above, the pin 126 pushes the slope 127b of the pause lock cam 127 and rotates the pause lock cam 127 in the clockwise direction. make it move.

At this time, the elastic piece 1271 provided integrally with the cam 127 is stopped by the cut-and-raised portion 12 of the chassis 1 and retains elasticity.

When the pin 126 further advances and passes the protrusion 127e and reaches the inner wall 1'27c of the groove, the pause lock cam 127 rotates counterclockwise due to the elastic force of the elastic piece 127i'', and the pin 126 rotates the pause lock cam 127 counterclockwise. The groove 127d is stopped, and the pin 126 returns to its original position due to the elastic force of the spring 128, so it is guided by the inner slope of the protrusion 127e and locks the lock part 12.
It is locked at 7f.

At that time, the tip 21b of the temporary stop sliding plate 21 moves the chassis 1
Press the bent wall portion 25a of the temporary stop lever 25 fitted to the shaft 24 installed above, and move the temporary stop lever 2 around the shaft 24 as a fulcrum as shown by the two-dot chain line in FIG.
5 in the clockwise direction.

Here, the temporary stop slider 26 (see the partial rear view at the top of FIG. 22) is guided by the shaft 145 and the groove portion 26a1, the chassis groove portion 1t, and the cut-and-raised portion 26b, which are installed in the chassis 1, and is guided by the spring 71. The tip 25b of the temporary stop lever 25 is sandwiched between the end 1u of the chassis 1 and the end surface 26C of the temporary stop slider 26, so that the bias is prevented by the end 1u of the chassis 1. .

Now, as described above, when the temporary stop lever 25 is rotated clockwise due to the pressure of the temporary stop slide plate 21, the tip portion 25b slides the right end portion 26c of the temporary stop slider 26 to the right, and the left end Turn the switch 141 to O at the section 26d.
I am trying to switch from N to OFF.

At this time, the cut and raised part 21a of the temporary stop sliding plate 21 presses the tip part 102c of the L-shaped rotating plate 102,
The rotary plate 102 is rotated counterclockwise, the head board 43 is moved to the left in the same manner as during the fast-forward operation using the elongated hole 102b, the winding gear 63 is moved to the neutral position, and the pinch roller is moved to the neutral position. 47 (46) to capstan 73 (72
).

Next, when canceling the temporary stop, press the temporary stop sliding plate 21 again as shown in FIG. 23, and the pin 126, which is locked by the locking part 127f of the pause lock cam 127, moves forward and the sloped part 127g of the groove moves forward. Press to pause lock cam 1
21 in the counterclockwise direction.

When the pin 126 is prevented from moving forward at the upper end portion 127h of the groove, when the temporary stop sliding plate 21 stops being pressed, the temporary stop sliding plate 21 is returned by the spring 128, so that the pin 12
6 is returned along the left groove curved wall portion 127h of the pause lock cam 127 and returned to the original groove portion 127a, and at the same time, the pause lever 25, pause slider 26, and switch 141 are also returned to their original positions, and the pause is stopped. It will be canceled.

(7. Stopping and ejecting the cassette) FIG. 24 shows a stop operation part, 22 is a stop operation member having a button 146 on the pressing part, and a shaft installed in the groove 1x of the chassis 1 and the chassis 1. 131 as a guide, and is always biased forward by a spring 23.

When the button 146 is pressed against the spring 23, the slope portion 22a of the center hole of the stop operation member 22 presses the pin 51 of the head board 43, and the pin 51, that is, the head board 43 moves to the left along the slope 223. move in the direction.

When the stop operation member 22 is further pressed, the pinch roller 47 (46) separates from the capstan 73 (72) and moves to the point where it is separated from the cassette 144 together with the magnetic head 58, as described above, when the stop operation member 22 is pressed. 2
The second tongue portion 22b (see FIG. 14) presses the lower end portion 3C of the elevating member 3 and rotates.

When the stop operation member 22 is further pressed, the elevating member 3 rotates clockwise (counterclockwise) against the spring 4 (5) with the shaft 13 (FIG. 7, 14) as a fulcrum in FIG.
The vertical sliding member 29 (30)
The cassette storage box 2 is moved from the second position to the first position by lifting the convex portion 29a (30a) upward, and the cassette 144 is lifted to the ejectable position.

At that time, the locking member 1 (FIG. 6)
The locking portion 7a locks the sliding portion tip 30b of the vertical sliding member 30.

At the same time, the rear end 144b of the cassette 144 is returned by the projection 7b of the locking member 7, so that the cassette 144
While pushing up the rear slope of the protrusion 6b of the cassette moving member 6 at the end of the reel bearing hole 144a of the cassette 14,
4 is returned by the return distance of the locking member 7, that is, from the position shown in FIG. 9 to the position shown in FIG. 12, with the protrusion 6b riding on the upper surface of the cassette 144.

Next, the cassette ejection process will be explained using FIG. 1, and is biased counterclockwise in FIG. 1 by a spring 27.

Reference numeral 31 indicates an ejection-related member, which is a shaft 3 installed on the chassis 1.
2, the cassette ejecting member 1
The end surface 31b of the ejection-related member 31 prevents the biasing of the cassette ejecting member 12 from the biasing of the cassette ejecting member 12.

Reference numeral 33 denotes a discharge sliding member, which is rotatably and slidably fitted into a guide pin 34 set on the chassis 1 through a hole 33a, and slides along the end surface 11 of the hole 1X of the chassis 1. The end portion 31 of the discharge-related member 31 has a pin 33d.
The biasing force at point a is blocked by the curved end 33b, and the spring 35 biases it to the left in FIG.

Now, by pressing the stop operation member 22, the head board 43 is retracted from the tape playing position, and the cassette 1
When the cassette 144 is raised together with the cassette storage box 2 to the ejection position by the elevating member 3, the tongue portion 22c of the stop operation member 22 is pushed up to the terminal end while pushing up the slope 33e of the ejection sliding member 33. The groove 33C of the discharge sliding member 33 is depressed into the tongue 22e.

After pushing the stop operation member 22 to the terminal end, press the button 146.
When released, the stop operation member 22 returns together with the discharge sliding member 33 due to the restoring force of the spring 23, but at this time, the curved end 33b connects the lower end 31a of the discharge related member 31.
counterclockwise, and further the discharge related member 31
The end 12 of the cassette ejection member 12 at the upper end 31b of the
Press b to rotate the cassette ejection member 12 in the clockwise direction in FIGS. 1 and 11.

The cassette ejection member 12 has a tip portion 12a (see FIG. 11).
Press the upper end portion 6g of the cassette moving member 6 against the elasticity of the tumbler spring 9, and move the cassette moving member 6.
is moved to its original position and the cassette 144 is ejected.

(See FIG. 13) The ejection sliding member 33 moved together with the stop operation member 22 has its pin 33a lifted by the slope 11 of the chassis 1 hole when the ejection of the cassette 144 is completed; see FIG. 11. The engagement between the groove portion 33c and the tongue portion 22c of the stop operation member 22 is released at the position indicated by the dotted chain line.

The ejection sliding member 33 returns to its original position indicated by the solid line due to the elasticity of the spring 35.

Accordingly, the cassette ejection member 12 is also returned to its original position.

When the stop operation member 22 is pressed to the end, the head board 43 is moved to the left as described above, and as shown in FIGS. 24 and 25, the head board 43 is moved to the end 43f of the head board 43.
The end surface 134a of the head board locking plate 134 is engaged with the end face 134a of the head board locking plate 134.

At this time, the power switch 141 is switched from ON to OFF by the elastic member 28b on the switch changeover lever 28, and the tape drive system is stopped.

(8. Combination of magnetic recording and reproducing device and radio receiver) Movement of the head substrate (section 2) and temporary stop mechanism (
It was explained that the switch 141 explained in the section 6) turns on and off the circuit system of the magnetic recording/reproducing device.
can have the following functions:

FIG. 29 shows a block diagram of the radio receiving system consisting of an antenna 151, a tuner 152, and a preamplifier 153, a magnetic recording/reproducing system consisting of a magnetic head 58 for picking up audio signals from a magnetic tape 144d of a cassette 144, a preamplifier 157, and a motor 138. system, a volume 154 for adjusting the volume of the two audio signals, and a main amplifier 15.
5 and a speaker 156, a power supply 158,
A power supply device consisting of a main switch 159 and the above-mentioned switch 141 is provided.

In such a configuration, when the cassette 144 is loaded and put into a playing state, the switch 141 switches the power supply from the radio side terminal R to the tape side terminal T by sliding the head board 43.

When the temporary stop sliding plate 21 is pressed from this state and the temporary stop state is set, the switch 141 is switched by the operation of the temporary stop sliding plate 21, the partial stop lever 25, and the partial stop slider 26, and the radio It will be played on the side.

Further, FIG. 30 shows another embodiment of the switch 141, in which an independent pause switch 160 that is switched to a temporary stop mechanism is provided separately from the switch 141 that is switched by the sliding movement of the head board 43. , this also has the same function as in FIG.

As described above, it can be said that this tape player is suitable for safe driving by drivers, as it has an operating section that can be used in a vehicle, and a cassette can be easily inserted.

As explained in detail above, in the cassette device according to the present invention, the cassette is automatically sucked in and lowered to the tape playing position by a slight push when the cassette is inserted, and when the cassette is ejected, the stop Since the cassette is automatically ejected to its original position by pressing the operating member, the operability of attaching and detaching the cassette is greatly improved, making it very suitable for use in a vehicle.

In particular, since the cassette storage box allows cassettes to be attached and removed only by horizontal and vertical movement, it is possible to expect very good coordination with other mechanical parts and stable related operations.

[Brief explanation of drawings]

The drawings all show one embodiment of the present invention, and FIG. 1 is a plan view of the magnetic recording/reproducing device with the outer casing removed, and FIG.
The left side view of the figure, Figure 3 is the front view of Figure 1, Figure 4 is the front view of Figure 3.
Figure 5 is a back view of Figure 1, Figure 6 is a cross-sectional plan view taken along line A-A in
7 and 7 are right side views of the main parts of FIG. 1 for explaining the cassette mounting process, and FIGS. 8 to 10 and 12 are for explaining the related operations between the cassette and the cassette moving member of the cassette storage box. Figure 1 is a right side view of the main part in Figure 1, Figure 11 is a perspective view of the main part in Figure 1 for explaining the cassette loading process, Figure 13 is a diagram of the main part in Figure 2 for explaining the cassette ejection process, and Figure 14 is 2 is a diagram of the main part of the cassette for explaining the loading process of the cassette, FIGS. 15 to 24 are diagrams of the main part of the cassette to explain the mechanism such as magnetic tape drive and operation switching, and FIGS. 25 to 27 are the main parts of the cassette. 28 is an enlarged view of the right side of FIG. 1 showing a series of tape drive systems, and FIGS. 29 and 30 are magnetic recording and reproducing diagrams of the present invention. This is a circuit diagram of the main parts when the device is combined with a radio receiver. 0 1: Chassis, 2: Cassette storage box, 3: Lifting member, 4
, 5 spring, 6: cassette moving member, 7: locking member, 8 spring, 9: tumbler spring, 10: pin,
11: shaft, 12: cassette ejection member, 13, 14: shaft,
22: Stop operation member, 27: Spring, 31: Ejection related member, 32: Shaft, 33: Ejection sliding member, 34 Ni guide pin, 35 Ni spring, 36, 37: Flywheel, 43: Head board, 45, 46 : pinch roller, 51: pin, 58: magnetic head, 6L62: turntable, 72, 73: capstan, 134: locking plate for head board, 138: motor, 139: solenoid, 144: cassette.

Claims (1)

[Scope of Claims] 1. A chassis having a tape drive system such as a motor, a capstan, and a turntable; a head board having a magnetic head, a pinch roller, etc.; a cassette storage box having a window into which a cassette can be inserted; In a magnetic recording and reproducing device comprising a head substrate locking plate that holds a head substrate in a non-performance position and releases the holding of the head substrate when the cassette is installed in the performance position, the cassette is stored in the cassette storage box. A sliding groove is cut out in the same direction, and a cassette moving member is slidably attached to this sliding groove, and when a cassette is inserted past a certain arbitrary position, the cassette is automatically moved to a predetermined storage position. a tumbler spring that urges the cassette moving member to retract the cassette; and a tumbler spring that locks the cassette storage box in a cassette non-insertion position and is pressed by the front end of the cassette when the cassette is pulled into the predetermined storage position. 1): Lower the cassette storage box that has been unlocked by the member, the vertical sliding members provided on the left and right sides of the cassette storage box, and the vertical long groove provided on the chassis. an elevating member that guides the cassette storage box in a direction, locks one end of the cassette storage box to the cassette storage box, and rotates with a spring that biases the cassette storage box downward to bring the cassette storage box to a playing position; a stop operating member that moves from the playing position to a non-playing position and rotates the elevating member to lift the cassette storage box from the playing position to the predetermined cassette storage position; and a spring that returns the stopping operating member with elastic force. , an ejection sliding member which is engaged and slid by the return operation of the stop operating member and is disengaged when the stop operating member returns to its original position; an ejection-related member that is rotated about an axis on the chassis by the ejection sliding member; and an ejection-related member that is rotated about an axis on the chassis by the ejection-related member and moves the cassette moving member to a predetermined cassette position. When the cassette is ejected by being moved from the storage position, the ejecting sliding member is disengaged from the stop operation member, and the cassette ejecting member is returned to its original position, and the cassette ejecting member is returned to its original position by elastic force. A magnetic recording/reproducing device consisting of a return spring. 2. In the magnetic recording and reproducing apparatus according to claim 1, the chassis is provided with a cut-and-raised portion so that the tip of the cassette moving member comes into contact with the cassette storage box when the cassette storage box is lowered to the performance position, and 2. The magnetic recording and reproducing apparatus according to claim 1, wherein the cassette moving member is prevented from coming into contact with the turntable on the chassis.