JPH0252356B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a display device for a tape recorder, in which a display light emitting element used for displaying operating status or signal level is provided in a part of a casing covered by a cassette lid. The object of the present invention is to provide a novel display device for a tape recorder that saves space and allows the display light emitting element to be seen from the outside only when the cassette lid is closed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A vertical tape recorder which is an embodiment of the present invention will be described below with reference to the drawings.

1 in the figure is a front housing combined with a rear housing 2, and the front housing 1 has upper and lower end walls 1a, 1
The tape drive mechanism section 3 is attached to screws 4a, 4b, 4 on b.
The opening 1c is formed on the front surface of the tape drive mechanism 3 facing the drive plane 3a, and forms a cassette mounting recess 5 together with the tape drive mechanism 3. 6 and 7,7'
A magnetic head and a pair of pinch rollers are arranged on the drive plane 3a of the tape drive mechanism section 3, which is the lower corner of the cassette mounting recess 5, with a movable substrate 8 interposed therebetween. Reference numeral 10' designates a pair of capstan shafts and positioning ribs, which are also arranged on the drive plane 3a near the pinch rollers 7, 7'. 1
Reference numerals 1 and 11' denote a pair of reel shafts disposed on the driving plane 3a of the tape drive mechanism section 3, which is the central part of the cassette mounting recess 5; This is a positioning pin arranged on the drive plane 3a of the drive mechanism section 3. Reference numeral 13 denotes an operating arm having left and right arm portions 13a, 13'a, respectively, and the operating arm 13 has rotation fulcrum screws 14, 14' formed at one ends of the left and right arm portions 13a, 13'a. The cab stan shaft 9, It is rotatably attached to the upper wall 1d, 1'd of the housing 1, which is the side opposite to the housing 9'. Reference numerals 15 and 15' denote biasing springs that are fitted into the rotation support screws 14 and 14' with one end in contact with the actuation arm 13 and the other end in contact with the front housing 1, respectively. The arm 13 is always urged to rotate in the direction of arrow A, which is the direction in which the arm 13 is separated from the capstan shafts 9, 9'. It is preferable for the biasing springs 15, 15' to be wound in opposite directions in order to balance the biasing force. and,
13c, 13'c are the biasing springs 15, 1
5', the left and right arm portions 13a of the operating arm 13,
This is a stopper formed at 13'a. 16,
16' have regulating cams 16a, 1 on their sides, respectively.
6'a and locking cams 16b, 16'b are formed, and the cassette 17 is inserted from its front end 17b with its rear end 17a protruding upward. 16, 16' are screw holes 1 formed on the sides.
6c, 16'c are screwed into the rotation fulcrum screws 18, 18' which are passed through the insertion holes 13d, 13'd formed in the other ends of the left and right arm parts 13a, 13'a of the operating arm 13, respectively. By doing so, it is rotatably attached to the other end portions of the left and right arm portions 13a, 13'a of the actuating arm 13. 19, 19' are fitted into the rotation fulcrum screws 18, 18' with one end in contact with the cassette holder 16, 16' and the other end in contact with the left and right arm portions 13a, 13'a of the operating arm 13, respectively. The inserted biasing spring constantly biases the cassette holders 16, 16' to rotate in the direction of arrow B, which is the direction in which the front end portion 17b of the cassette is separated from the capstan shafts 9, 9'. Incidentally, the biasing springs 19, 19' are connected to the actuating arm 13.
As in the case of , it is preferable to reverse the winding direction from left to right in order to balance the applied force. And 20,2
0' is mounted with the mounting screws 21, 2 with their tip pressing parts 20a, 20'a facing into the cassette holders 16, 16' through the through holes 16d, 16'd, respectively.
1, 21', 21' make the cassette holder 1
A pressing plate spring attached to the upper surface side of the cassette holders 16 and 16' holds the cassette 17 in place when inserting the cassette into the cassette holders 16 and 16'.
Press and hold within 6'. 22, 22' are rotation levers 24, 2, which are rotatably attached to the lower surfaces of the cassette holders 16, 16' by rotation screws 23, 23', respectively, to prevent incorrect insertion of the cassette.
4' is one end 22 of the rotating levers 22, 22'.
a, 22'a to the cassette holder 16, 1
Mounting screws 25, 25,
The leaf springs 24, 24' are attached to the rotary levers 22, 22' when the cassette is ejected.
The cassette 17 is elastically held in a rotational position that prevents the cassette 17 from being incorrectly inserted into the open space formed between the cassette 6' and the front housing 1. 26 is the upper wall 1d,
This is a display projecting wall formed on the front casing 1 at the lower side of the opening 1c on the capstan shaft 9, 9' side with respect to the capstan shaft 1'd. ，
27' is formed. 28 is the lighting lamp 2
9 and display LEDs 30, 30' are arranged, respectively, and a lead wire 31 is connected to the printed circuit board 28. The printed circuit board 28 has its engagement holes 32, 32' connected to the engagement projections 27, It is mounted on the display projecting wall 26 by engaging with the display wall 27'. The illumination lamp 29 is used to check the amount of tape remaining in the cassette 17, the track label of the cassette 17, or the position when inserting the cassette, and the display LEDs 30, 30' indicate the operating status. Used for display. 33, 33' are shaft portions formed at the lower part of the display projecting wall 26;
34' and 35, 35' are arcuate ribs and stopper ribs formed near the shaft portions 33, 33'. 36 has its bearing recesses 37, 37' fitted into the shaft parts 33, 33', respectively, and its arcuate leg parts 38,
A cassette lid body made of an opaque material that is rotatably attached to open and close the opening 1c around the shaft portions 33, 33' by slidingly contacting the cassette lid 38' with the arcuate ribs 34, 34', respectively. The cassette lid body 36 has a window hole 39 for seeing through the cassette, and a display hole 40 that faces the display LEDs 30, 30' when closed.
40', and both are covered with a transparent material. Further, the cassette lid body 36
is a circle that is rotatably fitted into the rotation fulcrum screws 18, 18', which are the rotation fulcrums of the cassette holders 16, 16', and makes sliding contact with the rollers 41, 41' mounted on the operating arm 13. Arc-shaped cams 42, 4
Therefore, during the cassette ejection operation, the arcuate cams 42, 42' and the roller 4
1, 41' through a sliding relationship with the biasing spring 15,
15' transmits the rotational force of the actuating arm 13, so that as the actuating arm 13 rotates in the direction of arrow A, it opens in the direction of arrow C, and when it closes in the opposite direction of arrow C, the actuating arm opens. 13 is rotated in the opposite direction of arrow A against the biasing force of biasing springs 15, 15'.

Reference numerals 43 and 43' denote auxiliary ribs formed on the cassette lid 36 to prevent incorrect insertion of the cassette. This prevents incorrect insertion of the cassette 17 into the open space formed between the cassette 17 and the cassette 17. Reference numeral 44 denotes a speed governor that suppresses the opening/closing operation of the cassette lid 36, and the speed governor 44 is connected to the wind turbine 4.
5, worm gears 48 and 49 that transmit the rotational force from the speed increasing gears 46 and 47 to the windmill 45, and one end connected to the arcuate leg 38 of the cassette lid 36 and the other end connected to the rotating shaft of the gear 46. It consists of a rope 51 wound 4 to 5 times and then pulled at the other end by a spring 50, so that when the cassette lid 36 is opened, the lid 36
When the rope 51 is pulled and the gear 46 is rotated, the windmill 45 and the spring 50 exert a restraining force, and when the lid is closed, the spring 50 is pulled and the gear 46 is rotated, so that the windmill 45 exerts restraint. power is given. Reference numeral 52 denotes a lock lever in which a lock piece 51a and a control piece 52b are formed, and the lock lever 52 has protrusions 52c and 52'c formed on the upper and lower ends of the upper and lower end walls 1a and 1b of the front housing 1. It is rotatably attached to the upper and lower end walls 1a, 1b of the front housing 1 by fitting into the insertion holes 53, 53'. Reference numeral 54 designates the protrusion 5 of the lock lever 52 with one end in contact with the lock lever 52 and the other end inserted into the insertion hole 55 formed in the upper end wall 1a of the front housing 1.
2c, the lock lever 52 is constantly rotated in the direction of arrow D, which is the direction in which the lock piece 52a of the lock lever 52 engages with the lock portion 56 formed on the arcuate cam 42 of the cassette lid 36. It's very active. Reference numeral 57 denotes an eject lever that protrudes forward from the front housing 1 through the insertion hole 58 and has an eject button 59 attached to its tip.
The ejector lever 57 is slidably provided on the lower end wall 1b of the front housing 1 through a through hole 57a and a shaft 60, and when the lock lever 52 is slid in the direction of arrow E, the control piece 52b of the lock lever 52 is slidably provided. The lock lever 52 is rotated in the opposite direction of arrow D against the biasing spring 54, and the engagement between the lock piece 52a and the lock portion 56 of the cassette lid 36 is released. Reference numerals 61 and 61' refer to the cassette holder 16, which rotates as the operating arm 13 rotates in the direction of arrow A during the cassette ejection operation.
The regulating ribs 61, 61' are formed on the left and right inner edges of the opening 1c of the front housing 1, respectively, in order to regulate the rotation direction of the capstan shaft 9, 16' of the cassette front end 17b. 9', the cassette holders 16, 16' come into contact with the regulating cams 16a, 16'a of the cassette holders 16, 16', and move the cassette holders 16, 16' in the direction opposite to the rotational direction of the operating arm 13. Biasing spring 1 in direction B
9 and 19'. Further, the regulating ribs 61, 61' lock the locking cams 16b, 1 of the cassette holders 16, 16' when the opening of the cassette lid 36 is completed in conjunction with the cassette ejection operation.
6'b, such a cassette holder 16,1
6', the rear end 17a of the cassette is connected to the cassette lid 3.
It is locked at a position stored within the rotation locus of 6.

The device of the present invention is configured as described above,
The operation will be explained below.

First, when the cassette is installed, as shown in FIG. 2, the cassette lid 36 is locked in the normal position by the engagement between the lock portion 56 and the lock piece 52a of the lock lever 52, and the operating arm Reference numeral 13 designates left and right arm portions 13a, 13'a and other parts against the urging springs 15, 15' due to the sliding relationship between the arcuate cam portions 42, 42' of the cassette lid 36 and the rollers 41, 41'. The end portion is brought into a position housed in the cassette mounting recess 5. Therefore, the cassette 17 inserted into the cassette holder 16, 16' is pressed by the pressing plate springs 20, 2.
0', the front end 17b is connected to the capstan shaft 9,
9', the positioning ribs 10, 1
0' and the rear end portion 17a is held in the mounting position where it is in contact with the positioning pin 12.
At this time, the rotating levers 22, 22' for preventing erroneous insertion of the cassette resist the pressure of the leaf springs 24, 24' due to the contact between the other ends and the driving plane 3a, and prevent the cassette 17 from being inserted as shown in the figure. It has been rotated to a position that does not interfere with the

Therefore, when the cassette is installed, the amount of tape remaining in the cassette 17 or the track label can be checked through the cassette viewing window 39 of the cassette lid 36, and the display LED 30,
It is possible to confirm the tape running indication by the display LEDs 30, 30' through the display holes 40, 40' located opposite to the tape 30'.

Next, with the cassette installed, press the eject button 59.
When the cassette is ejected by pressing in the direction of arrow D, the ejector lever 57 contacts the control piece 52b of the lock lever 52 and rotates the lock lever 52 in the opposite direction of arrow D against the biasing spring 54. By disengaging the lock piece 52a from the lock portion 56 of the cassette lid 36, the cassette lid 36 is unlocked at the closed position. Therefore, the actuating arm 13 begins to rotate in the direction of arrow A, which is the direction away from the capstan shafts 9, 9', due to the urging springs 15, 15', and the cassette lid body 36 also opens its arcuate cams 42, 42'. Due to the sliding relationship between the actuating arm 13 and the rollers 41, 41', the actuating arm 13 begins to open in the direction of arrow C around the shaft portions 33, 33'. and the cassette holder 16,
16' is also rotationally displaced in the direction of arrow B, which is the direction that promotes separation of the cassette front end portion 17b from the capstan shafts 9, 9', in an integral relationship with the operating arm 13 as the operating arm 13 rotates. Begin to.

Therefore, the front end 17b of the cassette 17 is rotated by the cassette holders 16, 16' in a direction in which the rear end 17a is brought into contact with the positioning pin 12 in the direction in which the front end 17b is separated from the capstan shafts 9, 9'. and its front end 17 as shown in FIG.
b is brought to the position where it is separated from the capstan shafts 9, 9'. When the operating arm 13 further rotates in the direction of arrow A in this state, the cassette holders 16, 16' move toward the display projecting wall 26.
Since the rotation in the direction of arrow B is restricted by contacting the back side of the actuating arm 13, the actuating arm 13 rotates around the rotation fulcrum screws 18, 18' as the actuating arm 13 rotates. It is rotated in a direction opposite to the rotational direction (ie, in the opposite direction of arrow B) against the biasing springs 19, 19'.

Therefore, after the front end 17b of the cassette 17 is separated from the capstan shafts 9, 9' by the cassette holders 16, 16', the rear end 17b of the cassette 17
7a is rotationally displaced from within the cassette mounting recess 5 in a direction in which it is projected forward of the front housing 1, and brought to the position shown in FIG. In this state, when the operating arm 13 further rotates in the direction of arrow A, the cassette lid body 36 also opens further in the direction of arrow C, and the cassette holders 16, 16' replace the display projecting wall 26 and serve as its restrictor. cams 16a, 16'
a comes into contact with the regulating ribs 61, 61' and is prevented from rotating in the direction of arrow B.
3, the actuating arm 13 is further rotated significantly in the opposite direction of arrow B against the biasing springs 19, 19', and the other end of the actuating arm 13 moves forward from inside the cassette mounting recess 5. It is brought to a position where it protrudes forward of the housing 1.

Therefore, the cassette 17 is rotated by the cassette holders 16, 16' in a direction in which the rear end 17a is further projected forward of the front housing 1, and gradually moves diagonally upward in the cassette removal direction. It will be brought to you. Therefore, as shown in FIG.
3'c comes into contact with the front housing 1 and the actuating arm 13
When the rotational movement of the cassette lid body 36 stops, the rotational force from the operating arm 13 through the sliding relationship between the arcuate cams 42, 42' and the rollers 41, 41' is no longer transmitted, so that the opening operation of the cassette lid body 36 stops. stop and
Further opening of the cassette lid 36 is restricted by the legs 38, 38' coming into contact with the stopper ribs 35, 35'. Further, when the cassette holder 16, 16' completes opening of the cassette lid 36, the rear end 17a of the cassette 17 moves along the rotational trajectory of the cassette lid 36 (line X-X' in FIG. 5).
It stops while being held in a position where it protrudes from the inside in the cassette removal direction.

Therefore, in such a cassette ejected state, the cassette 17 can be easily removed from the cassette holders 16, 16'. Also, at this time, the rotating levers 22, 2 for preventing incorrect insertion of the cassette.
2' is brought into the open space formed between the cassette holders 16, 16' and the front housing 1, and the cassette 17 is moved into the open space by leaf springs 24, 24'. is elastically held in a rotational position to prevent incorrect insertion.

In addition, when the cassette is ejected, the rear end 17a of the cassette 17 is pressed in the direction of arrow E, which is the insertion direction, and the operating arm 13 is slightly rotated in the opposite direction of arrow A, so that the state shown in FIG. 4 is reached. When the cassette 17 is rotated in the direction of arrow F, the locking cam 16 of the cassette holder 16, 16' is moved by the urging force of the urging springs 15, 15' of the operating arm 13.
b, 16'b are locked to the regulating ribs 61, 61'. Therefore, the cassette 17 is held in a position housed within the rotational trajectory along the cassette lid 36, and the cassette 17 is moved along the cassette lid 36.
This is useful when you want to retract to 6. Further, when the cassette lid body 36 is closed from the locked state of the cassette holders 16, 16', the arcuate cam 4
Since the contact position between 2 and 42' and the rollers 41 and 41' is from the state shown in FIG. 6, the closing force and angle are smaller than when closing from the state shown in FIG. 5, which is convenient. Therefore, when installing a cassette, the cassette is once held in the state shown in FIG. 6, and then the cassette lid 36 is closed, making it possible to install the cassette in a so-called two-action manner.

The cassette ejecting operation from the cassette mounted state has been described above, but the cassette lid 36, actuating arm 13 and cassette holder 1 are similarly connected to the cassette mounting operation from the cassette ejected state.
6, 16', etc. perform the opposite operation, the front end 17b of the cassette 17 is connected to the capstan shaft 9,
9' and is brought to a predetermined position where the device is smoothly inserted.

In this embodiment, the case where the display LED is used to display the operating status has been described, but a large number of such LEDs may be provided and used to display the signal level.

As described above, in the present invention, the cassette mounting recess 5 is formed in the casing 1, and the cassette lid 36, which opens and closes the cassette mounting recess, is rotatable in the casing 1 by means of a fulcrum located at a lower position. A tape recorder is provided with a display projecting wall 26 adjacent to a lower part of the cassette mounting recess 5 of the casing 1 and protruding into the cassette mounting recess 5, the display projecting wall 26, a display light emitting element 29,
A display window 40 is provided in the lower part of the cassette lid 36 facing the display light emitting elements 29 and 30, and when the cassette lid 36 is closed, the cassette is attached. Since the display light-emitting element is arranged to face the display window within the space of the recess 5, the size of the cassette lid differs from the case where the display space is specially arranged next to the cassette mounting recess. This has the unique effect of making it possible to reduce the size of the cassette, and to display information using the display light emitting element within the space of the cassette mounting recess without affecting the opening/closing operation of the cassette lid. . Moreover, it has the effect of contributing to miniaturization of equipment.

[Brief explanation of drawings]

The figures show an embodiment of the device of the present invention, FIG. 1 is an exploded perspective view thereof, FIG. 2 is a side sectional view showing the cassette installed state, and FIGS. 3 and 4 respectively show the cassette ejection process. FIG. 5 is a side sectional view showing a cassette ejection state, and FIG. 6 is a side sectional view showing another embodiment of FIG. 5. 1...Front casing, 2...Rear casing, 5...Cassette mounting recess, 9,9'...Capstan shaft, 1
3... Operating arm, 16, 16'... Cassette holder, 16a, 16'a... Regulatory cam, 16
b, 16'b...Locking cam, 17...Cassette,
22, 22'... Rotating lever, 26... Display projecting wall, 30, 30'... Display LED, 36... Cassette lid body, 40, 40'... Display hole, 42, 4
2'... Arc-shaped cam, 52... Lock lever, 6
1,61'...Regulatory rib. 62, 62'...operating pin.

Claims (1)

[Scope of Claims] 1. A cassette mounting recess 5 is formed in the housing 1, and a cassette lid body 36 for opening and closing the cassette mounting recess is provided.
The tape recorder is rotatably provided in a housing 1 by means of a fulcrum located at a lower position, and the tape recorder is provided in a cassette mounting recess 5 adjacent to a lower portion of the cassette mounting recess 5 of the casing 1. A protruding display projecting wall 26 is provided, and a display light emitting element 29,
A display window 40 is provided in the lower part of the cassette lid 36 facing the display light emitting elements 29 and 30, and when the cassette lid 36 is closed, the cassette is attached. A display device for a tape recorder, characterized in that a display light emitting element is arranged to face a display window within the space of the recess 5.