JPS6057138B2 - Cassette ejector in tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a reciprocating table that is given a forward protruding force, a slider that holds a cassette that can reciprocate relatively in the same direction as the table, and a slider that holds a cassette that can reciprocate relative to the table; and the slider are mechanically connected to each other, and the slider is moved simultaneously with the movement of the table in response to the moving force of the table, by an amount of movement greater than the amount of movement thereof, and the slider is moved from a horizontal position to a lowered performance position. A tape recorder comprising a double-speed moving means for bringing the slider to a lowering position and a cassette ejecting position, and a maintaining means for maintaining a cooperative performance state with the tape recorder when the slider reaches the performance position. The purpose of this is to:
To provide a cassette ejecting device for a tape recorder in which the cassette, which is horizontal with respect to the slider in the playing state, is inclined with respect to the slider in the eject position, so that the cassette can be easily removed by hand. It is.

An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 designates the front panel of the cassette deck body, which includes a slider 2 into which the cassette A is inserted by a leaf spring 2a, and a table located on the lower surface of the slider 2 and movable relative to the slider 2. An opening 1a is provided so that both the ejector levers 3 and 3 can protrude, and an opening lb from which the eject lever 4 protrudes is also provided at the lower right of the opening 1a when viewed from the front.

On the other hand, inside the cassette deck body, side plates 6 and 6' are attached to the lower panel 5, and a shaft 7 is fitted between the rear parts of the side plates 6 and 6'. The rear end of the holder 8 is pivotally supported, and as a result, the holder 8 can be rotated in the vertical direction about the shaft 7 as a fulcrum.

Further, the table 3 has no bottom other than the bottom 3a of the protruding portion from the front panel 1 when the table 3 is protruding, and side pieces 3b, 3b'' extend rearward from both sides of the bottom 3a.
Behind it, guide portions 3b1, 3b1'' that guide guide rollers 9, 9'' on both sides of the holder 8 are bent into an L-shape, and in the center, the rollers 9, 9'' are bent.
, 9'' are formed, and furthermore, at the rear end, a pulley 10, 1'' is pivotally supported and an L-shaped leaf spring 11, 1'' is attached.

In front of the side pieces 3b, 3b'', the side plates 6,
6″ L-shaped guide parts 6a, 6a bent on the upper surface
Guide rollers 12, 12'' guided by '' are pivotally supported. In addition, the table 3 is formed with slope-like protuberances 3c and 3C'' that are inclined so as to be higher in the front direction, and a viewing window 3d for looking into the inner part is formed on the front end surface. A transparent member 27 such as glass or a magnifying lens is attached thereto.The slider 2 has a hole 2b1 for receiving a reel pin, a slope-shaped protuberance 3c of the table 3, Notch 2b2 for escaping from 3C''
Furthermore, upright pieces 2b4, 2b, '' for regulating the cassette position which abut against the cushioning rubbers 13, 13'' of the table 3 are formed, respectively.

On both rear sides of the slider 2, guide pieces 2c, 2C'', 2d, 2d'' are bent inward to be guided by guide portions 8a, 8a'' on both sides of the lower part of the holder 8.14 has springs 26 and 265 at both ends.
through the guide pieces 2d, 2d at the rear end of the slider 2.
``It is a string that is fixed to the lower part, and the center part is attached to the pulley 10, 1''.
It is suspended from the holder 8 and fixed to the holder 8.

The holder 8 is formed with a plurality of adjustment protrusions 8b for adjusting the effective length of the string 14, and after the string 14 is hooked on the hooks 8c and 8C'', one of the hooks 8
Hook the string 14 from c onto one of the adjustment protrusions 8b,
By hooking on the central projection 8d, the central portion of the string 14 becomes fixed. To change the effective length of the string 14,
It is only necessary to change the hooking position on the adjustment protrusion 8b. 15.1V
is a string that provides a cushioning effect when the table 3 protrudes forward, and these strings 15, 15'' are attached to the side pieces 3b of the table 3.
, 3b'', one end of which is fixed to the leaf spring 11,1'' at the rear end, and the damper pulley 16,1 is pivotally supported from there to the side plate 6,6''.
6'', and the other end is fixed to the central projections 17, 17'' of the side pieces 3b, 3b''.

18,1' (one 18 is not shown) is a spring installed between the table 3 and the slider 2, and the slider 2 receives a tensile force against the table 3 due to this spring 18,1'. ing.

The ejector lever 4 described above is slidably guided by pins 19 and 20 in the front and rear direction on one of the side plates 6 and 6'', and is mounted between the pins 19 and the other side plate 6. A protruding force is normally applied by the spring 21.

A pressing portion 4a is formed at the rear end of the eject lever 4. The pressing portion 4a is bent into an upwardly inclined surface. 22
is a lever whose lower end is pivoted to one side plate 6, and whose upper end is given a counterclockwise rotational force by a spring 23 in a counterclockwise direction in FIG. The lower shaft 25 of the link lever 24 of No. 9 is pivotally supported.

Therefore, one of the guide rollers 9 has a spring 23
As a result, the other guide roller 9'' is also influenced by this and is in a state of being pressed against the other guide portion 3b1''. Note that the pressing portion 4a of the eject lever 4 is
It faces the lower shaft 25. The curved pieces 8e and 8e'' on both front sides of the holder 8 are provided on their lower surfaces for pressing the cassette A inserted by the slider 2, and below the curved pieces 8e, 8e'', there is a cassette whose entire body is inclined forward. A driving mechanical part B is located there.

3b333bJ'' is a regulating piece that comes into contact with the damper pulleys 16, 16'' to restrict the protrusion state when the table 3 completes its protrusion, and is bent at both rear ends of the table 3.

28 is a mirror attached to the holder 8, which allows you to visually check the tape winding state of the cassette A sent by the slider 2 from the front of the table 3 when the cassette A is loaded into the cassette drive mechanical section B. It is mounted tilted forward so that it can be easily photographed.

The tape winding portion of the cassette A is illuminated by a light source 29 fixed to the lower panel 5. Next, the operation in the above configuration will be explained.

1 to 3 show the state in which both the slider 2 and the table 3 protrude forward from the front panel 1. At this time, when the cassette A is manually installed in the cassette installation part 2b of the slider 2, the cassette A is Leaf spring 2a, front upright piece 2b
4, 2bi'', lateral upright pieces 2b5, 2b5'', and is positioned with respect to the hole 2b with the front end slightly lifted by the slope-like protuberances 3c, 3C''. In this state, If the front of the table 3 is pushed inward, the pulleys 10, 1' at the rear end will also move backwards, and the string 14 will move backwards.
is stretched rearward, and the slider 2 to which the cassette A is attached is also pulled and moved rearward by the string 14.

At this time, the string 14 extending backward from the shaft 7 is connected to the pulley 10,
1 ``The upper and lower parts of each will stretch at the same time, so
The slider 2 is now moved backwards by a distance equal to the travel length of the pulleys 10,1', which is twice the travel distance of the table 3, and thus the slider 2 pushes the table 3 against the front panel 1. You will now move backwards at twice the speed.

At this time, the spring 26,26''18,1'' is the string 1
4 to apply tension. During this time, the table 3 is guided by the guide rollers 12, 12'' against the side plates 6, 6'', by the guide rollers 9, 9'' against the holder 8, and further by the strings 15, 15''. Therefore, it is also guided to the damper pulley 16316''.

Although the strings 15 and 15'' are used as dampers, they do not function when the cassette A is inserted deep into the cassette A.

That is, when inserted, the strings 15, 15'' from the damper pulleys 16, 16'' to the leaf springs 11, 1''. A tensile force is applied to the leaf spring 11, 1.
As it bends, the part of the string 15, 15'' between the protrusion 17, 175 and the damper roller 16, 165 becomes loose, so the string 15, 15'' does not bite into the damper roller 16, 16'' and slides. It becomes like this. Therefore table 3
Only a small amount of force is required to push it in. On the other hand, as described above, the slider 2 moves toward the back at twice the speed with respect to the table 3, but before it starts moving, only the pair of guide pieces 2d and 2d'' are guided by the guide parts 8a and 8a'' of the holder 8. When the movement is completed, the other pair of guide pieces 2c and 2C'' are also guided by the guide portions 8a and 8a'', and the rear part of the slider 2 enters into the holder 8.

As described above, when the table 3 moves to the back, the recesses 3b2, 3b. '' is now located below the guide rollers 9, 9'', and at this time, one of the guide rollers 9 is easily pulled downward by the spring 23, so those guide rollers 9, 9'' are positioned below the guide rollers 9, 9''. Recessed portion 3b2
, 3] 1) It begins to fall within 2'. Therefore, the holder 8 comes to rotate downward about the shaft 7 as a fulcrum.
At this time, the table 3 is completely pushed into the front panel 1, and the slider 2, which has moved at double speed, has its cassette mounting portion 2b completely separated from the bottom 3a of the table 3.
It will be in a state where it has moved further back.

Therefore, as described above, the guide rollers 9, 9'' are in the recess 3b.
2, 3b2'', the slider 2 is only guided by its guide pieces 2c, 2C'', 2d, 2d'' by the guide parts 8a, 8a'' of the holder 8, so the slider 2 is It comes to rotate downward together with the holder 8.

Therefore, the cassette A mounted on the cassette mounting portion 2b of the slider 2 is maintained in a state of being incorporated into the cassette drive mechanism B while being pushed by the curved portions 8e, 8e'' of the holder 8, and then By driving the , playback or recording becomes possible.

FIGS. 4 to 6 show the above state. At this time, in order to check the tape winding amount of the cassette A, look through the transparent member 27 of the viewing window 3d of the slider 3.The winding portion illuminated by the light source 29 will be reflected by the mirror 28, so the tape winding amount can be checked. This makes it easier to confirm. Next, in order to take out the cassette A assembled into the cassette drive mechanism section B as described above, the eject lever 4 is pushed.

As a result, the eject lever 4 is guided by the pins 19 and 20 and moves to the back against the tensile force of the spring 21, and the pressing portion 4a at the rear end pushes the lower shaft 25 to the back. . Therefore, the guide roller 9 is pushed upward from the recess 3b via the link lever 24, and as a result, the other guide roller 9' is also pushed upward from the holder 8.
The guide rollers 9, 9″ rise integrally with the recess 3b.
By the way, between the table 3 and the slider 2, there is a spring 18,1'' (one 18 is not shown) that provides a tensile force between them. is suspended, so when the table 3 and slider 2 are in a free state, first the slider 2 moves forward with respect to the table 3, and then this slider 2
The string 14 is pulled forward by the forward movement of the pulley 1.
0,1' will be pulled forward, and the table 3 will also move forward. That is, the slider 2 moves forward at twice the forward movement speed of the table 3,
The state returns to the state shown in FIGS. 1 to 3. Buffer rubber 13, 13
'' performs a buffering effect at this time. Also, the regulating pieces 3b3, 3b3'' at the rear end of the table 3 are connected to the damper pulleys 16, 1.
The ejection is completed when it comes into contact with the slider 6".In addition, when returning in this way, the slider 2 ejects at double speed, so even though the cushioning rubber 13, 13" is provided, the image of the product being used is not very clear. Although it will not be pleasant,
This is solved by the following operation.

That is, at the time of this return, at the start of protrusion,
A large tension acts on the string 15, 15'' between the damper pulley 16, 16'' and the protrusion 17, 17'', and the damper pulley 16, 1'' of the string 15, 15'' and the leaf spring 11,
The part between 1" will not loosen, so the string 11, 1"
bites into the damper pulley I river 6,1'', causing the damper pulley 16,16'' to rotate.

Therefore, if rotational resistance is applied to this damper pulley I month 6,16'', the return force at the start of return will be considerably offset, and therefore the table 3 will protrude slowly and move, giving an extremely good usability image of the product. Become.

Note that this slow movement is caused by the guide rollers 9, 9'' being moved by the guide portions 3b1, 3b of the table 3 by the springs 23.
The cassette A on the slider 2 protruded as described above moves against the slope-shaped protuberance 3c of the table 3 when the protrusion is finished. 3C'', by placing your hand on the front side of the cassette A.
It can be easily removed.

In view of the above, according to the present invention, a slope-like protuberance that is highly inclined toward the front end is formed at the front end of the table, and a notch is formed at the front end of the slider to escape from the slope-like protuberance, so that when the cassette is ejected, the cassette is It rests on a slope-like protuberance with its front end facing upward, making it easy to remove.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the tape recorder mechanism before the cassette tape enters, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along the line ■-■ of the first beam, and Fig. 4 is the state after the cassette tape is entered. 5 is a side view thereof, and FIG. 6 is a cross-sectional view taken along the line ■--■ in FIG. 4. A...Cassette, B...Cassette drive mechanism section, 1...Front panel, 1a, 1b...
...Opening, 2...Slider, 2a...
...Plate spring, 2b...Cassette mounting part, 2c,
2C'', 2d, 2d''...Guide piece, 3...
...Table, 3a...Bottom, 3b, 3b''...
...Side piece, 3b1, 3b1''...Guide portion, 3b2, 3b2''...Concavity, 3c, 3C''...
・Slope-like ridge, 4...Eject lever,
4a...pressing part, 5...bottom panel,
6, 6゛...Side plate, 6a, 6a''...Guide part, 7...Shaft, 8...Holder, 8a
, 8a''・Guide part, 8b...Adjustment protrusion, 8c
,8C''...Hook part, 8d...Central protrusion, 8e
,8e''...Curved piece, 9,9''...Guide roller, 10,1"Pulley, 11,1"...Plate spring, 1
2,12'' guide roller, 13,13''...buffer rubber, 14...string, 15,15''...string, 1
6,16″...damper pulley, 17,17″...
・Protrusion, 1 ``...Spring, 19, 20・
...Pin, 21 ...Spring, 22
...Luv, 23...Spring, 24...
...Link lever, 25...Lower shaft, 26, 26
″...Spring, 27...Transparent member, 28
...Mirror, 29...Light source.

Claims (1)

[Claims] 1. A reciprocating table that is given a forward protruding force, a slider that holds a cassette that can reciprocate relatively in the same direction as the table, and mechanically connecting the table and the slider. , a position where the slider is moved by a movement amount greater than the movement amount of the table simultaneously with the movement force of the table, and the slider can be lowered from a horizontal position to a lowered performance position; a cassette eject position; In the tape recorder, the tape recorder comprises a double-speed moving means for bringing the slider to the playing position, and a maintaining means for maintaining the cooperative playing state with the tape recorder when the slider reaches the playing position, and the tape recorder includes a tape recorder that is mounted on the front end of the table and is raised upwardly toward the front end. 1. A cassette ejecting device for a tape recorder, characterized in that an inclined slope-like protrusion is formed, and a notch is formed at the front end of the slider to escape from the slope-like protrusion.