JPH0216424Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating device for a tape recorder, and is particularly suitable for a cassette tape recorder.

Generally, this type of operating device uses the rotational force of a capstan (to which a flywheel is fixed) that feeds the tape at a constant speed to operate and move the playback lever, rewind lever, stop lever, etc. in response to the press of a button, etc. However, devices are known that reduce manual operating force.

The present invention provides the above operation device that automatically rewinds the tape at a predetermined position on the tape such as the end of the tape, and automatically puts the tape into a playback state at another predetermined position during rewinding. An operation that can automatically repeat playback between a predetermined position on the tape and another predetermined position, and automatically enter the playback state from rewinding at a predetermined position on the tape, and automatically at a predetermined position on the next tape. It is possible to switch between three operations as appropriate: an operation that can bring the tape to a stopped state immediately, and an operation that can immediately and automatically bring the tape to a stopped state at a predetermined position.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.

The figure shows an application of the present invention to a cassette tape recorder, and parts that are well known as a cassette tape recorder and are not directly related to the present invention are omitted.

FIG. 1 shows the inside of a cassette tape recorder, with reference numerals 1a and 1b representing a well-known reel stand, and 2 a well-known capstan. 3 is the stop lever, 4 is the recording lever, 5 is the rewind lever, 6
1 is a fast-forwarding lever, and 7 is a playback lever. The long holes 8 of these levers 3 to 7 are slidably fitted into pins 9 implanted in a substrate (not shown). 7 are slidably attached to the substrate. Separate pins 10 are implanted in the levers 3 to 7, respectively. Reference numeral 11 denotes a locking member, and its elongated hole 12 is slidably attached to a pin 13 implanted in the substrate. Reference numeral 14 denotes a spring, which urges the locking member 11 to the right with respect to the substrate in FIG. This locking member 11 has separate inclined edges 21 against which the pins 10 mentioned above are respectively pressed.
Reference numerals 15 and 16 indicate separate pins embedded in the substrate, and separate wire springs 1 are attached to these pins, respectively.
7 and 18 are respectively wound, and these wire springs 1
The vicinity of the ends of the levers 7 and 18 are fitted into grooves in the side risers 19 of the levers 3 to 6, and
is biased downward in FIG. 20 is a coil spring, which biases the lever 7 downward in FIG.

One of the levers 4 to 7 is connected to the spring 17, 18.
or 20, the pin 10 presses against the inclined edge 21, and this pressing causes the locking member 11 to slide against the spring 14, causing the pin 10 to move (slide) against the inclined edge 21. When one of the levers 4 to 7 is moved to the point where it is released, the lock member 11 is returned to its original position by the spring 14, the pin 10 is pressed against the upper edge of the lock member 11, and one of the levers 4 to 7 is moved. It is locked in this moving position. Lever 4~
When the levers 7 other than the one mentioned above are moved, the locking member 11 is moved against the spring 14, so that the locked levers are unlocked.

Reference numeral 22 denotes an operating member, which is slidably and rotatably attached to a shaft 25 fixed to upright parts 23 and 24 provided on the base plate. Operation member 22
are projecting pieces 26, 2 that protrude around the shaft 25;
7, 28, 29, 30, and pressing surfaces 31, 32 perpendicular to the longitudinal direction of the shaft 25.

In FIG. 2, the levers 3 to 7, etc. mentioned above are removed to make it easier to see the inside. A drive gear 33 is fixed to the capstan 2, and the gear 33
A driven gear 34 that can mesh with the substrate is rotatably attached to the substrate about an axis 35. This driven gear 34 has a notch 3 that disengages it from the drive gear 33.
6 is provided, and a cam 3 is provided at a position eccentric to the shaft 35.
7 is provided, and a pin 38 is implanted in this cam. Reference numeral 39 denotes a pin implanted in the substrate, and a wire spring 40 is wound around the pin, one end of the spring is attached to the pin 41 implanted in the substrate, and the other end is attached to the pin 38. are pressed into contact with each other.
The driven gear 34 has a recess 42 on its rear surface as shown in FIG. ing. The rotary plate 43 is rotatably attached to support parts 45 and 46 provided on the base plate, and is biased by a spring (not shown) in a direction in which the branch part 44 is fitted into the recessed part 42. has been done.

When this rotary plate 43 is pressed against the spring, the branch portion 44 is released from the recessed portion 42. When the branch 44 is fitted into the recess 42, the gear 34 is biased by the spring 40 so that one wall surface of the recess 42 is pressed against the branch 44. As mentioned above, when the branch part 44 comes off from the hollow part 42, the branch part 44 comes off from one wall surface of the hollow part 42,
The gear 34 is rotated in the clockwise rotation direction in FIG. 2 by the spring 40. This rotation causes the gear 34 to mesh with the gear 33, causing the gear 34 to rotate. Approximately one rotation of the gear 34 causes the notch 36 to move into the gear 3.
When the gear 3 reaches position 3, the bias of the spring 40 causes the gear 3 to shift.
4 is urged in the clockwise rotation direction, one wall surface of the recess 42 comes into contact with the branch 44, and the gear 34 stops. This stopped state is shown in FIGS. 2 and 3.

Reference numeral 47 designates a driving member, and a pin 49 implanted in the substrate is slidably fitted into an elongated hole 48 of the driving member, whereby the driving member 47 is slidably attached to the substrate. This driving member 47 is
Contact edge 5 against which the cam peripheral surface of the cam 37 contacts
0 and L-shaped through holes 51, 52, 53, 54, 5
5, and is urged rightward in FIG. 2 by a traction spring 56. This driving member 47 reciprocates once by one rotation of the gear 36, that is, one rotation of the cam 37.

Pins 57, 58, 59, 60, 6 are implanted in the substrate in the through holes 51 to 55 of the driving member 47.
1 is inserted through these pins 57 to 61, and intervening members 62, 63, 64, 65, and 6, which will be described later, are inserted into these pins 57 to 61, respectively.
6 is rotatably and slidably attached. These intervening members 62 to 66, as shown in an enlarged view in FIG. The pin 57 is attached to the sleeve 71 so as to be rotatable about the shaft and slidable in the longitudinal direction of the shaft. A coil spring 72 is wound around this pin 57, and the rotating plate 68 pushed up by this spring is pressed against a retaining ring 73 that is fitted and fixed to the pin 57. Spring 74 hooked on the above protrusion 67
The intervening members 62 to 66 are oriented in a fixed direction as shown in FIGS. 43, and the front peripheral surface of the pin 69 is slightly pressed against the lower edge of the levers 3-7.

Therefore, by pressing the pin 69 in its axial direction via an appropriate push button (not shown),
An intervening member, for example the intervening member 66, is moved against the spring 72, a pin 70 is inserted into the through hole 55, and the rotating plate 43 is further pressed by the pin 70. As a result, the drive member 47 is moved by the gear 33 via the gear 34 as described above. This movement of the drive member 47 presses the pin 70 inserted into the through hole 55, which causes the rotating plate 68
is rotated in the clockwise rotation direction against the spring 74, and the lever 7 is pressed by the pin 69 against the spring 20, thereby achieving the above-mentioned regeneration state.

In addition, in the above example, the pins 70 of the intervening members 62 to 65 whose pins 69 are not pressed in the axial direction by the push button
is a state in which it is not inserted into the through holes 51 to 54 due to the elasticity of the spring 74. Therefore, the intervening members 62 to 65 that are not pressed in the axial direction are not rotated even if the drive member 47 is moved.
Levers 3 to 6 are not pressed.

Reference numeral 75 is a well-known tape position detection mechanism;
For example, when the cassette tape stops at its end, this is detected and the moving member 76 is moved (see Japanese Utility Model Application No. 51-95978). Reference numeral 77 designates a selection plate, into which pins 80 and 80 implanted in the substrate are fitted into the elongated hole 78 and the loose fitting hole 79, respectively. has been done. A pressing protrusion 82 is formed on this selection plate 77, and a pin 83 is implanted therein. Reference numeral 84 designates a sliding plate, into which a pin 86 implanted in the substrate is slidably fitted into a long hole 85, and is slidably attached to the substrate. The lower edge of this sliding plate 84 may be opposed to the protrusion 30 of the operating member 22, and the upper edge may be opposed to the pressing protrusion 82. When the moving member 76 is moved downward in the state shown in FIG. 2, the protruding piece 30 is pressed through the sliding plate 84, and the operating member 22 is rotated against the traction spring 87.

In FIG. 1, reference numeral 88 is an arm;
The lever 6 is rotatably attached to the base plate with the lever 9 as a fulcrum, and the vicinity of one end thereof is engaged with a pin 90 implanted on the back surface of the lever 6 . The vicinity of the other end of the arm 88 is engaged with one rising end of another arm 91 . The arm 91 is rotatably attached to the board using a fulcrum 92, and the vicinity of the other end is attached to the pin 8.
3 is engaged. 93 is also an arm, 94
is rotatably attached to the board using the fulcrum as a fulcrum,
One end of the arm is interposed between the lock member 11 and a stopper pin 95 implanted in the base plate. In the above-described locked state by the locking plate 11 of the lever 6, the arm 88 is rotated clockwise by the pin 90, and the arm 91 is rotated counterclockwise by the pin 90, so that the selection plate 77 resists the spring 81. The pressing protrusion 82 is opposed to the other end of the arm 93 . In this state,
When the moving member 76 is moved, the arm 93 is pressed in place of the sliding plate 84, whereby the locking member 11 is slid against the spring 14, and the lever 6 is unlocked.

As shown in FIG. 6, the operating member 22 is provided with a notch 96, into which a leaf spring 98 fixed to an operating element 97 is fitted. Above operator 9
7 is slidably provided along the shaft 25 and is configured to be locked at three locations by well-known ball recesses or the like. This operator 97 can be operated manually from outside the tape recorder, and the operating member 2
2 is also moved and placed over three locations.

In the state shown in FIG. 1, the operating member 22 is in the center position, and when the operating member 22 is rotated by the movement of the drive member 76 described above in this state, the pin 70 of the intervening member 62 is moved by the projection 26. is pressed, and the lever 3 is moved to a stopped state. When the operator 97 is moved to the left to a predetermined position in FIG. It comes to the position of pin 70. At this time, the other protrusions 26, 28, 29 are out of position with any of the pins 70. Therefore, when the movable member 76 is moved in this state, the intervening member 64 is moved by the projecting piece 27 due to the rotation of the operating member 22.
The pin 70 is pressed, and the lever 5 is moved to enter the rewinding state described above. When the operation element 97 is moved rightward to a predetermined position in FIG. It comes to the position of pin 70. At this time, the other protrusions 26, 27, 29 are out of position of any pin 70. Therefore, when the movable member 76 is moved in this state, the pin 70 of the intervening member 66 is pressed by the protruding piece 28, and the lever 7 is moved to enter the regeneration state described above.

In addition, in this way, a plurality of protrusions 2 are provided on the operating member 22.
By arranging the levers 6 to 29 at appropriate positions in the sliding direction, the distance over which the operating member 22 is slid in order to select the levers 3, 5, and 7 can be shortened.

Reference numerals 99 and 100 indicate arms, which are rotatably attached to the substrate about respective fulcrums 101 and 102, respectively. These arms 99,
One end of the lever 100 is the raised part 10 of the levers 5 and 7.
3 and 104, respectively, and the other end can be engaged with the pressing surfaces 31 and 32 of the operating member 22, respectively.

If the operator 97 is locked at a predetermined position on the left, the operating member 22 will also move to a predetermined position where the lever 5 on the left can be selected, but the lever 5 will not be in the locked state. When the arm 99 is moved, the arm 99 is rotated in the counterclockwise direction and the operating member 22 is rotated.
The pressing surface 31 of is pressed to the right, the operating member 22 is moved a certain distance to the right against the elasticity of the spring 98, the protruding piece 29 is in the position of the pin 70 of the intervening member 66, and the lever 7 is selected. This is a possible position. Furthermore, if the operator 97 is locked at a predetermined position on the right, the operating member 22 will also move to a predetermined position where the lever 7 on the right can be selected.
When lever 7 is moved to the locked state, arm 1
00 is rotated in the clockwise rotation direction, the pressing surface 32 of the operating member 22 is pressed to the left, and the operating member 22 is moved a certain distance to the left against the elasticity of the spring 98, so that the protruding piece 26 is interposed. This is the position of the pin 70 of the member 62 and the position where the lever 3 can be selected. Note that when the levers 5 and 7 are released from the locked state, the operating member 22 returns to the predetermined position corresponding to the locked predetermined position of the operator 97 due to the elasticity of the spring 98.

In such a configuration, in the above-mentioned cassette tape recorder, when the operator 97 is locked in the neutral position (the position shown in FIG. 1), the operating member 22 is in a position where the lever 3 can be selected, and the tape can be moved at a predetermined position. As the member 76 moves, the protrusion 26 of the operating member 22 presses the pin 70 of the intervening member 62, and the lever 3 is operated and automatically brought to a stopped state.

Furthermore, if the operator 97 is locked in a predetermined position on the left side, the operation will be as follows. Assume that the lever 7 is now in the locked state and in the reproducing state. Here, when the moving member 76 is moved to a predetermined position on the tape, the pin 70 of the intervening member 64 is pressed by the protruding piece 27 of the operating member 22, and the lever 5 is operated and moved to automatically enter the rewinding state. . As the lever 5 is operated and moved, the arm 99 is rotated to the left, and the operating member 22 is moved a certain distance to the right against the elasticity of the spring 98 to a position where the lever 7 can be selected. . When the movable member 76 is moved again in such a rewinding state, the protrusion 29 of the operating member 22
The pin 70 of the intervening member 66 is pressed, and the lever 7
is moved and automatically returns to the playback state.
At this point, the lever 5 is released from the locked state, and the next movement of the moving member 76 automatically returns to the rewinding state. Therefore, by locking the operator 97 to the left, a so-called auto-repeat state is established in which the playback state and the rewinding state are alternately repeated each time the movable member 76 moves.

Then, when the operator 97 is locked in a predetermined position on the right side, the operation will be as follows. Now, assuming that the lever 5 is in the locked state and in the rewinding state, the protrusion 28 of the operating member 22 presses the pin 70 of the intervening member 66 due to the movement of the movable member 76, and the lever 7 is operated and moved automatically. It enters the playback state. Here, as the lever 7 is operated and moved, the arm 100 is rotated in the clockwise rotation direction, and the operating member 22 is moved to the left by a certain distance against the elasticity of the spring 98, so that the lever 3 can be selected. position. Then, moving member 7
6 is moved, the protruding piece 26 of the operating member 22 presses the pin 70 of the intervening member 62, and the lever 3 is operated and brought to a stopped state. Note that in the reproducing state, if the operator 97 is locked to the right, it goes without saying that the movement of the moving member 76 automatically brings it to a stopped state.

Further, in the fast forwarding state with the lever 6 in the locked state, the arm 88 is rotated in the left rotation direction, and the arm 91 is accordingly rotated in the right rotation direction.
The pressing protrusion 82 of the selection plate 77 is opposed to the arm 93, and the movement of the moving member 76 rotates the arm 93 in the counterclockwise rotation direction, moves the lock plate 11 to the left, and unlocks the lever 7. and becomes stopped.

In the above embodiment, as the tape position detection mechanism,
Although a mechanical tape end detection mechanism is assumed, the present invention is not limited to this, and it is also possible to use a mechanism having an electromagnetic plunger operated by a set value of a tape counter.

As explained above, according to the tape recorder operating device of the present invention, the so-called auto-repeat operation in which the playback state and rewinding state are alternately repeated at a predetermined position on the tape by manual switching operation of the controller, and There are three operations: automatically changing from rewinding to playing at a predetermined position on the tape, automatically stopping at a predetermined position on the next tape, and stopping immediately at a predetermined position on the tape. The switching operation can be performed as appropriate.
In addition, a known mechanism is used to operate and move the lever using the rotational force of the capstan, so as to reduce the manual operation force required to press the push button.
There is no need for a new mechanism for operating and moving the lever, and the operating device of the present invention can be incorporated into a tape recorder at a low cost, which is an excellent effect.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a front view, the second figure is a front view with parts removed to show the inside, the third figure is a rear view of the main parts, and the fourth figure is a front view.
The figure is a perspective view of the main part, Fig. 5 is a side view of the main part, and Fig. 6 is a side view of the main part.
The figure is a bottom view of the main parts. 3...stop lever, 5...rewind lever, 7...
...Reproduction lever, 22...Operation member, 26-30...
... Projection piece, 31, 32 ... Pressing surface, 62 to 66 ...
Intervening member, 76... Moving member, 97... Operator,
98...spring, 99,100...arm.

Claims (1)

[Claims for Utility Model Registration] (1) In a tape recorder in which a selected operating lever is moved and locked by the rotational force of the capstan, and other levers are unlocked, The operating member is provided so as to be slidable through a spring through a manual switching operation across three positions: a position where the rewind lever can be selected, a position where the stop lever can be selected, and a position where the regeneration lever can be selected, and With respect to the operation member which is in a position where the rewind lever can be selected by a child, the operation member is moved to a position where the playback lever can be selected by resisting the elasticity of the spring as the rewind lever is operated. Provide an arm that slides on the
With respect to the operating member which is in a position where the regeneration lever can be selected by the operator, the operating member is moved to a position where the stop lever can be selected by resisting the elasticity of the spring as the regeneration lever is operated. further provided is a moving member that is moved at a predetermined position on the tape, so that the lever selected by the operating member is operated and moved by the rotational force of the capstan by the movement of the moving member. An operating device for a tape recorder, characterized in that it is configured as follows. (2) The operating device for a tape recorder according to claim 1, wherein the operating member has a plurality of protrusions for selecting the operating lever.