JPS5912781Y2 - Mechanical pause mechanism in tape player - Google Patents

Description

[Detailed description of the invention] The present invention relates to the invention of a mechanical pause mechanism for a tape player, and an object of the present invention is to provide a mechanical pause mechanism that can pose the play idler for the reel base and the pinch roller for the capstan with accurate timing. That is.

Pausing operations in tape players have been performed for a long time, and there are two methods: electrical and mechanical. In the case of the latter mechanical method, the drive system related to the reel base is It is extremely difficult in design and production to pose the play idler installed in the play idler and the pinch roller pressed against the capstan with accurate timing, and if this timing cannot be obtained properly, the tape Deflection, overflow, and fast-forwarding phenomena occur, making it impossible to obtain desirable recordings.

For this reason, it is generally known that in the past, even the provision of a special mechanism or other means for eliminating such a phenomenon has been studied.

The present invention was devised to eliminate the disadvantages of the conventional ones as described above, and by incorporating a special adjustable mechanism, it is possible to easily obtain accurate timing, and it is possible to improve the mechanical pose. This allows the mechanism to be advantageously applied to tape players.

To explain a specific embodiment of the present invention shown in the attached drawings, an example of a tape player employing a mechanical pause mechanism according to the present invention is as shown in FIG. A drive motor 120 and an electromagnetic plunger 130 are attached to the back of the main base plate 100, which is formed with a numeral 101 to which the operation console 110 is attached, and another base plate 200 is attached to the bottom of the main base plate 100. are arranged as shown in FIG.
, a pause operation lever 280 is arranged in a row together with a fast-forward operation piece 230, a rewind operation piece 240, and a recording operation piece 250, and is configured to be pressed in a push-button manner.

However, a side plate 102 is attached to the other side of the main base plate 100 as described above, and this side plate 102 and the operation console 110 are connected to each other.
A cassette mounting area is formed between the side plate 102 and the folding part 112 formed inside the operating table 110, in which the base end of the rotating frame 50 is located in the inner part of the cassette mounting area. It is rotatably mounted with a pivot 51, and a cassette receiving frame 55 is flexibly connected to the distal end of the rotary frame 50 with a mounting plate 54.

That is, the details of the flexible connection structure between the tip of the rotating frame 50 and the cassette receiving frame 55 are based on the technical method proposed by the applicant for the cassette. The receiving frame 55 corresponds to the engagement hole 52 formed on the side.
The engaging pawl 56 is engaged with a slight gap, and the stopper 57 is placed on the bulging seat 58 formed with a height corresponding to at least the thickness of the rotating frame 50 of the receiving frame 55. ,5
The end edge 54a of the mounting plate 54 fixed by the mounting plate 7 is positioned so as to overlap the front edge 50a of the fixed rotating frame 50 with a slight gap in the thickness direction, and within the limits of these gaps. It has a bending action, and is configured to prevent mutual separation due to the engagement of the engagement pawl 56 with the engagement hole 52 and the overlapping relationship between the end edge 54a and the front edge 50a as described above. ing.

An opening 53 is vertically provided in the middle part of the rotating frame 50, and an engaging end 61 of a slide plate 60 slidably provided on the operation table 110 is connected to the opening 53. The cassette 150 is located hanging down and has a hole so that it can be slid into contact with the front end of the cassette 150 that is loaded into the cassette loading area, as shown in FIG.

The configuration of the cassette 150 is as conventionally known, with a playback end surface 151 on the long side.
is formed, and a reel driver fitting hole 152 is formed in the center thereof.
．． 152 are provided, and tape is wound between the reels disposed in the fitting holes 152, respectively, so as to be guided to the above-mentioned reproduction end surface 151. A small frame-shaped stepped portion 153 is formed on the circumferential side of the portion where the hole 152 is provided.

A head 145 and a pinch roller 14 are mounted on the main base plate 100.
A head plate 140 is provided, which is operated by the play operation piece 220 described above, and a hanging portion 59 to which a guide 59a is attached is formed on the side of the mounting plate 54 described above. The guide hole 10 of the side plate 102 is
2a to guide the lowering of the receiving frame 55 to the reproduction position.

However, the structural relationship of the drive system in the structure as described above is as shown in FIG. 4, and the motor 120 has two
Two pulleys 123, 124 are provided, and belts 128, 129 are placed on these pulleys 123, 124 respectively, one belt 128 being connected to two flywheels 25.
．． 25 as shown in the figure, and the other belt 129 is hung around two play pulleys 47, 47 as shown in the figure, so as to drive each of them.

Furthermore, flywheel gears 125 are formed integrally with the flywheels 25, 25, and coaxial small gears 147 are also attached to the play boo IJ 47.47, but separate flywheel gears 125 are formed thereon. wheel 25
A reel base gear 48 is provided between the small gear 147 and the play pulley 47, and a first reel base gear 48 is interposed between the small gear 147 and the reel base gear 48.
The idler 76 and the flywheel gear 125
A second idler 77 is interposed between the reel base 48 and the reel base 48 .

These first. The second idlers 76 and 77 are rotatably attached to a support arm 186 formed protruding from the middle part of an interlocking lever 183 which is pivotally supported in the middle.
7 is a link 73 whose base end is pivotally supported on the bottom surface of the main base plate 100
The support arm 186 and the link 73 are also rotatably attached to the free end side, and the tips of the support arm 186 and the link 73 have operation protrusions 187 and 27 protruding from the opposite ends, respectively.

Further, on both sides between these operating protrusions 187 and 27, there are two seesaw operating members 7 whose intermediate portions are pivoted 79.
The semicircular gears 28, 28 formed around the pivot points of these actuating members 78, 78 are engaged with each other.

The above-mentioned interlocking lever 183 is L
The pause operation lever 280 is operated in succession via the shaping bar 182, and the pause operation lever 280 is connected to the elongated hole 284.2 with respect to the guide pins 104, 104 provided on the main base plate 100.
The other operating levers 210, 220, 23 are engaged at 84 and operated by pushing in the longitudinal direction.
0.240.250, and the cam hole 281 provided on the negative side is engaged with the engager 144 of the pinch roller frame 142 for normal feeding of the tape, so that the lever 280 as described above is engaged. The pinch roller 141 is released from the state of pressure contact with the capstan 148 by pushing the capstan 148 .

Also, a hanger 282 is attached to the tip of such a pause lever 280.
is attached to the hanger 282, and a lock piece 285 rotatably provided between the hanger 282 and the main base plate 100 using an elastic material 283 is provided oppositely, and a protrusion protruding from the hanger 282 is attached to the hanger 282. Coupled with the action of the portion 282a, the first position of the pause lever 280 is
The second push locks the lever 280 in the push-in position as shown in FIG. 5, and the second push in this locked state releases the locked state and moves the lever 280 as shown in FIG. I am admonishing them to return to action.

As shown in the figure, the arm portion 181 and one end of the L-shaped bar 182 are engaged with each other by the elongated hole 181a and the grandchild 182b. is engaged by this interlocking lever 183.
An elastic member 184 bent in a U-shape is actuated on the other end of the linking lever 183 so that the fourth
In the figure, since the rotational force is applied in the counterclockwise direction, it is simply a joint 183a and Sun Tzu 182.
It is obtained in a.

In addition, the L-shaped bar 182 as described above has a pivot point 1 at its corner.
87 to the main base plate 100, but on the side of the arm 181 from such a pivot position, there is an adjustment operation part with Sun Tzu 188 arranged oppositely on both sides of the notch 189. The angle between 182a and 182b about pivot 187 and the relative length relationship can be adjusted together.

Reference numeral 185 denotes a tape feed direction switching plate which is switched by the electromagnetic plunger 130 as described above, and since the elastic member 184 as described above is disposed at the tip thereof, this elastic member 184 is rotated by the pivot 199. The interlocking lever 183 as described above is
is reversed to change the engagement relationship between the idler 76 and the gears 47 and 48, thereby changing the running direction of the tape.

According to the present invention as described above, the notch 189 and Sun Tzu 1 are provided in the operation interlocking system operated by the pose operation lever 280.
88 is provided, so after assembling a series of operating systems, the length and angle relationship of the lever 182 can be adjusted as appropriate by applying a tool to the Sun Tzu 188. This allows the cam of the pause operation lever 280 (pinch roller 1 at L 281
41 operation timing and play idler 76 gear 14
7 and the reel pace gear 48 to effectively adjust and match the operation timing to perform the pause operation.The drive system from the motor is separated into the flywheel side and the play pulley side, and each Even in a tape player such as an embodiment in which a separate drive system is formed, it is possible to effectively adjust the mechanical pause operation with a preferred timing, so this is a highly effective idea in practical terms.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 is a perspective view showing an example of a tape player equipped with a mechanical pause mechanism according to the present invention, FIG. 2 is a plan view thereof, and FIG.
The figure is a cross-sectional view in the thickness direction of the operation console part, Figure 4 is a plan view of the interlocking operation system for the pose operation lever on the main base plate, and Figure 5 is the fourth figure showing the pose operation state. It is a top view similar to the figure. However, in these drawings, 25 is a flywheel,
47 is a play pulley, 48 is a reel base gear, 76
is the play idler, 100 is the main base plate, 120 is the motor,
125 is a flywheel gear, 128, 129 is a belt, 141 is a pinch roller, 142 is a pinch roller frame, 1
48 is a capstan, 181 is an arm, 182 is an L-shaped lever, 183 is an interlocking lever, 186 is a supporting arm thereof, 188
189 is a notch, and 280 is a pose operating lever 281 which is a cam hole.

Claims (1)

[Scope of utility model registration request] A pinch roller is pressed against a capstan and an idler is interposed between a reel base and a driving rotating member to run the tape, and the tape includes a cam portion for moving the pinch roller forward and backward. A pause operation lever is provided, and an L-shaped bar 1 is provided between the arm of the pause operation lever and the interlocking lever to which the idler is attached.
82 for interlocking operation, and furthermore, this L-shaped bar 182 is formed with a notch and an adjusting operation part with retainers facing each other on both sides of the notch to adjust the crimping timing between the idler and the pinch roller. A mechanical pose mechanism in a table breyer that can be operated.