JPH0210589Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a cassette tape recorder in which modes such as stop, recording, playback, and rewinding can be set by moving a single operating lever.

Cassette tape recorders are provided with push buttons for setting modes such as stop, record, playback, rewind, etc., and various modes are set by selectively operating each push button.

This invention is a cassette tape recorder that allows various operation modes to be set by moving a single operating lever in a straight line.
Moreover, it is designed to be easy to operate, and the number of parts for operation is reduced. This invention will be explained below based on the drawings.

FIG. 1 is an external perspective view of an embodiment of this invention with the lid open, and FIGS. 2 to 6 are plan views showing an embodiment of this invention. In addition, Figures 2 to 6
The diagrams have been redrawn in a two-dimensional manner in which various levers, etc. overlap. Figure 2 is in stop mode, Figure 3 is in recording mode, Figure 4 is in playback mode, Figure 5 is in rewind mode, and Figure 6 is in rewind mode. The figure is in fast forward mode.

In Fig. 2, reference numeral 11 is an operating lever with a long hole
2, the cam member 14 is slidably attached to the chassis 1, and has a pressing piece 13 and a cam member 14 having an uneven portion 14A formed by a groove for setting stop, recording, playback, and rewind modes.

Reference numeral 21 denotes a transmission lever, one end of the central portion of which is rotatably attached to the chassis 1 with a screw 22, etc., and the other end of which is attached to the uneven portion 14A of the cam member 14 of the operating lever 11.
a guide member 23 that engages with the head board 3, which will be described later.
A pin 24 that engages with the notch 33 of the cam member 1 and transmits the setting mode of the cam member 14 is provided.

A head board 31 is slidably attached to the chassis 1 through an elongated hole 32, and is provided with a notch 33 that engages with the pin 24 of the transmission lever 21 and a notch 34 for tensioning the spring.

Reference numeral 41 denotes an operating lever, which is slidably attached to the chassis 1 through a long hole 42 and is an engagement lever that tensions a spring 44 between an engagement piece 43 that contacts the head board 31 and a notch 34 in the head board 31. Piece 45 and
A pin 48 that tensions a spring 47 is provided between an engagement piece 46 that comes into contact with an inclined surface 73a of a fast-forwarding lever 71 (described later) and an engagement piece 53 of a first response lever 51 (described later). The operating lever 41 is biased by a spring 44 so that the engagement piece 43 comes into contact with the head board 31.

51 is a first response lever, one end of which is connected to chassis 1.
It is rotatably attached to the frame with a screw 52 or the like, and an engagement piece 53 for tensioning the spring is provided. Note that the first response lever 51 is urged by the spring 47 so as to come into contact with the pin 48 of the operating lever 41.

Reference numeral 61 denotes a second response lever, whose central portion is rotatably attached to the chassis 1 with a screw 62, etc., a spring 63 is stretched between one end and the chassis 1, and an engagement piece 64, at the other end. 65 are provided. Furthermore, a torsion spring 66 is provided on both inner sides of the engaging pieces 64 and 65 so that the two bent pieces come into elastic contact with each other. It protrudes to a position where it is pressed by the pressing piece 13 when the button is pressed.

71 is a fast-forwarding lever, and the long hole 72 is used to control the chassis 1.
An engaging piece 73 that is slidably attached to the lever and has an inclined surface 73a at one end that contacts the engaging piece 46 of the actuating lever 41, a pressing piece 74 provided at the other end, and a lock lever 81, which will be described later, are rotated. A stepped portion 75 with which the other end 84 sometimes comes into contact is provided. Note that the fast-forwarding lever 71 is biased in the non-operating direction (to the left) by a spring 76 between it and the chassis 1.

Reference numeral 81 denotes a lock lever, the center of which is rotatably attached to the chassis 1 with a screw 82, etc., and the other end 84 is attached such that one end 83 abuts the left end of the operating lever 11.
A spring 85 is stretched between the lever 81 and the chassis 1, and the lock lever 81 is prevented from rotating by a pin 2 provided on the chassis 1 when it is not pressed by the right end of the operating lever 11.

A flywheel 91 is rotated by a drive system (not shown). Reference numeral 92 denotes an idler, which is pivotally supported by the first response lever 51 and is interposed between the flywheel 91 and the take-up reel 93 when the first response lever 51 is rotated.
The rotation is transmitted to the take-up reel 93. 9
An idler 4 is pivotally supported by the second response lever 61, and transmits the rotation of the flywheel 91 to the supply reel 96 via the idler 95 when the second response lever 61 is rotated. Reference numeral 97 denotes a recording switch that is pressed and activated by the right end of the operating lever 11, and 98 is a fast forward switch that is activated by the left end of the operating lever 11 or the pressing piece 74 of the fast forward lever 71. When the switch is activated, the flywheel 91 is rotated. Rotate the motor at high speed.

Next, operations in various modes will be explained.

In the recording mode, when the operation lever 11 is slid in the direction of arrow A from the stop mode shown in FIG. 2 via an operation button (not shown), the recording switch 97 is actuated at the right end of the operation lever 11 to enter the recording state.
The lock lever 81 is rotated about the screw 82 in the direction of arrow C to bring the other end 84 into contact with the stepped portion 75 of the fast-forward lever 71, thereby locking the movement of the fast-forward lever 71. In addition, since the guide member 23 of the transmission lever 21 is guided by the uneven portion 14A of the cam member 14 and the transmission lever 21 is rotated clockwise, the head board 31 is slid in the direction of arrow D (forward direction) by the pin 24. let When the head board 31 slides in the direction of arrow D, it presses the engagement piece 43 of the actuating lever 41, so the actuating lever 41 also slides in the direction of arrow D, and the spring 47 pushes the first response lever 51 as shown in the arrow. The idler 92 is rotated in the F direction, and the idler 92 is interposed between the flywheel 91 and the take-up reel 93 to transmit the rotation of the flywheel 91 to the take-up reel 93. This state is shown in FIG.

In the regeneration mode, when the operation lever 11 is slid in the direction of arrow B from the stop mode shown in FIG.
The guide member 2 of the transmission lever 21 is
3 to rotate the transmission lever 21 clockwise, the pin 24 moves the head board 31 in the direction of arrow D. The subsequent operation is the same as in the recording mode, and the rotation of the flywheel 91 is transmitted to the take-up reel 93 via the idler 92. This state is shown in FIG.

In the rewind mode, when the operating lever 11 is further moved in the direction of arrow B from the playback mode shown in FIG.
to press one end of the torsion spring 66 of the response lever 61, rotate the response lever 61 in the direction of arrow H, interpose the idler 94 between the flywheel 91 and the idler 95, and close the flywheel 9.
1 rotation is transmitted to the supply reel 96.

Further, since the guide member 23 of the transmission lever 21 is guided by the uneven portion 14A of the cam member 14 of the operation lever 11 and the transmission lever 21 is rotated, the pin 24
The head board 31 is moved in the direction of arrow E. By moving the head board 31 in the direction of the arrow E, the spring 44 is stretched between the notch 34 and the engagement piece 45 of the actuating lever 41, so that the actuating lever 41 also moves in the direction of the arrow E (return direction). ). When the operating lever 41 moves in the direction of arrow E, the pin 48 rotates the first responsive lever 51 in the direction of arrow G, thereby separating the idler 92 from the flywheel 91. Note that when the force pressing the operating lever 11 is released, since the operating lever 11 is not in the locked state, it is forcibly returned to the regeneration mode position by the force of the spring 63 and the torsion spring 66. This state is shown in FIG.

In the fast-forward mode, when the fast-forward lever 71 is moved in the direction of arrow A from the stop mode shown in FIG.
Since the engaging piece 46 of the operating lever 41 is pressed by
The actuating lever 41 moves in the direction of arrow D while extending the spring 44. When the operating lever 41 slides in the direction of arrow D, the first response lever 51 rotates in the direction of arrow F, as explained in the recording mode.
An idler 92 is interposed between a flywheel 91 and a take-up reel 93 to transmit rotation of the flywheel 91 to the take-up reel 93. This state is shown in FIG.

FIG. 7 shows an example of a click stop mechanism for stably stopping the operating lever 11 at the stop position, playback position, or recording position. That is, a recess (or hole) 3 is provided in the chassis 1, a recess 15 is also provided on the operation lever 11 side, and this recess 1
5 accommodates a coil spring 16 and a ball 17 that is resiliently pushed by the coil spring 16 and fits into the recess 3 of the chassis 1. This allows operation lever 1
When the lever 1 is moved, the ball 17 compresses the coil spring 16 and rises to escape from the recess 3 and enter the next recess 4, where it acts to maintain the stability of the operating lever 11.

Although the magnetic head is omitted in the above embodiment, the required magnetic head is attached to the head board 31 and controlled in conjunction with the operation of the operating lever 11. Further, in the above embodiment, each part is arranged in a plane on one side of the chassis 1, but this is for the purpose of making the explanation easier to understand, and each part can be arranged on the chassis 1 as necessary. Needless to say, they can be arranged on both sides or three-dimensionally so as to overlap each other.

As explained in detail above, this invention is applicable to a tape recorder in which the playback position, rewind position, or recording position can be selected from the stop position by moving the control lever linearly. A cam member consisting of uneven parts (staggered) is provided, and a transmission lever that rotates in a direction almost perpendicular to the sliding direction of the operation plate is attached by this cam member, and the movement of the head board and gear driving means is controlled. Since this is done, the tension of the spring that biases the head board, response lever, etc. does not directly apply to the operating lever at each operating position.

Therefore, even if the spring force of the click mechanism that fixes the operating lever at each operating position is reduced, each operating position can be easily held stably, and the operator can easily operate the tape recorder with one hand. effective.

Furthermore, since the number of parts that control the head board and the transmission mechanism of the gear for driving the reel can be reduced, it is possible to easily reduce the thickness of the head board and to simplify assembly.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an embodiment of this invention, Figs. 2 to 6 are plan views of the main parts, Fig. 2 is in the stopped state, Fig. 3 is in the recording state, and Fig. 4 is in the recording state. FIG. 5 shows the playback state, FIG. 5 shows the rewinding state, and FIG. 6 shows the fast forwarding state. FIG. 7 is a side sectional view of the main part of the click stop mechanism of the operating lever. In the figure, 1 is a chassis, 11 is an operating lever, 12
1 is a long hole, 14 is a cam member, 21 is a transmission lever, 3
1 is a head board, 32 is a long hole, 41 is an operating lever, 42 is a long hole, 44 is a spring, 51 is a first
response lever, 61 is a second response lever, 66 is a torsion spring, 71 is a rapid feed lever, 7
2 is a long hole, 81 is a lock lever, 91 is a flywheel, 92 is an idler, 93 is a take-up reel, 94 and 95 are idlers, 96 is a supply reel, 97 is a recording switch, and 98 is a fast forward switch.

Claims (1)

[Scope of utility model registration request] A tape drive means for driving the tape in the playback/recording direction and the rewinding direction, a playback position and a rewinding position sequentially in one direction from the stop position, and a recording position in the opposite direction to each of the above positions, and a selection switching operation. an operating lever that linearly slides to select each of the positions, a cam member disposed on the operating lever, and a guide member that engages with an uneven portion formed on the cam member; When the operation lever slides to the recording position or the playback position, a transmission lever is rotated in a direction substantially perpendicular to the sliding direction, and a transmission lever is engaged with one end of the transmission lever to rotate the transmission lever. The head board moves between the forward position and the backward position by movement, the operation lever moves to the playback position or the recording position, and the head board moves to the forward position. an actuating lever that is moved forward by a substrate; and a first actuating lever that is rotated by the forward movement of the actuating lever and switches the tape drive means to the playback position or the recording position.
and a second responsive lever that is rotated by the operating lever to switch the tape drive means in the rewinding direction when the operating lever slides to the rewinding position. A cassette tape recorder featuring: