JPH0371464A - Loading device for cassette tape - Google Patents

Abstract

PURPOSE:To prevent the breakdown and deformation of the case of a cassette tape by dissipating the energization of a spring by the sliding of a slide member to the front part and dissipating the energizing force of the slide plate to the front part by an energizing lever. CONSTITUTION:At the vertical loading completion time with the down motion of a holder 7 being stopped an abutting piece of a board 16 is abutted on the piece 34a to be abutted of an energizing lever 34 by the sliding of a slide member 15 to the front part, the lower end part of the energizing lever 34 is separated from a guide pin 37 and the energizing force of the upper end part of the lever 34 to the rear part by a spring 35 is dissipated. So, the energizing force to the front part of the slide plate 36 is dissipated, the reaction by a bending piece 39 to one end part of a lever 40 abutted on the bending piece 39 is dissipated and the state of the force that the insertion pin 47 of after a horizontal loading completion presses the front face of a cassette tape 6 being nil becomes. The causes of the breakdown and deformation of the case of the cassette tape 6 are thus prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention is directed to a cassette tape loading and unloading device such as a rotary head digital audio tape recorder (hereinafter referred to as R-DAT). Regarding equipment.

(b) Conventional technology In general, R-DAT cassettes and tapes are equipped with a slider that opens and closes the reel boss insertion hole on the bottom of the case in order to prevent dust from entering the case. The slider slides to open the reel boss insertion hole only when the cassette tape is used.

In this way, as a cassette tape loading device that has the function of sliding the slider of the cassette tape to open the reel boss insertion hole, the holder that holds the cassette tape is provided with a locking claw that restricts the movement of the slider, and this locking Usually, the cassette tape is pushed into the holder while the slider is restricted by a claw, and an example of the prior art of this type of loading device is disclosed in Japanese Patent Laid-Open No. 62-31057, for example. (G
I IBI 5. /675).

The apparatus described in the above publication includes a cassette holding means for holding the tape cassette and moving it to a predetermined cassette mounting position, and a cassette presser and a cassette pushing means for moving the tape cassette from the initial insertion position,
When the cassette holding means moves toward a predetermined mounting position, the tape cassette is moved so that the cassette pushing means pushes the tape cassette and the cassette presser comes to a position where it presses a regular pressing point on the tape cassette. When the tape cassette is inserted into the cassette holding means, the relationship between the tape cassette and the cassette presser is not in the normal state, and the cassette holding means moves toward the predetermined cassette loading position. When the overculm is moving, the tape cassette is moved by the cassette 7) pushing means within the cassette holding means, the slider of the tape cassette slides to open the reel boss insertion hole, and the cassette presser presses the tape cassette at its proper position. It is designed to be maintained.

(c) Problems to be Solved by the Invention In the conventional technology, the pushing force of the cassette pushing means is required to slide the slider and reliably open the reel boss insertion hole regardless of the variation in the dimensions of the tape cassette. Even after the cassette pushing means pushes in the tape cassette and completes the cassette insertion operation, the cassette pushing means continues to strongly press the cassette body, so that the force center is increased during vertical loading. There is a problem in that the pressing force of the pushing means becomes a load, damaging the case of the tape cassette, or causing deformation of the tape cassette due to the strong pressing force, making tape running unstable.

(d) Means for Solving the Problems In order to solve the above problems, the present invention includes a tray that slides back and forth between a cassette tape attachment/detachment position and a horizontal loading completion position by means of a drive means, and a tray that slides up and down on the tray. a movable holder for holding the cassette tape; and a rotating body that moves the holder downward to bring the cassette tape to a playing position when the tray moves rearward and reaches the horizontal loading completion position. , an insertion pin that contacts the front surface of the cassette tape with a predetermined spring biasing force and pushes the cassette tape backward; and a spring that is applied to the insertion pin when the cassette tape is brought to a playing position by the rotating body. The present invention provides a cassette tape loading device characterized by comprising means for forcibly dissipating the biasing force.

(e) Function Since the structure is as described above, the slide member (15
), the backward biasing force of the upper end of the biasing lever (34) by the spring (35) is reduced, and the biasing lever (34) moves the slide plate (36) forward. The biasing force is reduced, and the reaction force of the bending piece (39) on one end of the insertion lever (40) that is in contact with the bending piece (39) is reduced, and the insertion pin (4) after horizontal loading is completed.
7) will be dissipated, so that during vertical loading of the cassette tape (6), the insertion pin (47) will hit the front side of the cassette tape (6). Even if the cassette tape (6) remains in contact with the cassette tape (6), it is prevented from causing damage or deformation of the cassette tape (6), and even after loading is completed, the insertion pin (47) does not touch the cassette tape (6). Since the contact state is maintained, even if the locking mechanism of the slider of the cassette tape (6) is insufficient and the slider opening lug comes off due to external force, etc., the slider will be held in the open state, and the slider will not be opened like the conventional one. This prevents abnormalities from occurring during loading.

(f) Example Examples will be described with reference to the drawings.

(Purchasing F&) In the drawing, (1) is the main chassis, (2) is the sub-chassis, and longitudinally long side plates (3) and (4) are fixed to both sides of both chassis (1) and (2). The chassis (1) and (2) are connected to each other, and both chassis (1) and (2) are fixed inside an opening in a front panel (not shown). (5) consists of a base (5a) and a rearward extending portion (5b) integrally formed at the rear end of the base (5a), and is driven by a drive means (not shown) to lower the subchassis (2). a tray (7) that slides back and forth between the cassette tape (6) loading/unloading position and the horizontal loading completion position on the side;
is a holder, which is composed of a bottom plate (8) and a bending plate (9) formed by bending both left and right ends of the bottom plate (8) upward; Guide pins (10) and (11) implanted in the front end and rear part of the tray (5) are movably fitted into vertical guide grooves formed on the outer surface of the base (5a) of the tray (5). A holder (7) is provided on the base (5a) of the tray (5) so as to be vertically movable. At this time, two reel boss insertion holes (8)° that overlap the reel boss insertion holes (12) on the bottom of the cassette tape (6) are transparently provided in the bottom plate (8) of the holder (7).
At the rear of the cassette tape (6), insert the slider (13) of the cassette tape (6).
) are integrally formed with two locking claws (14) that lock into the slider (13) and release the slider (13). (
The unlocking protrusion 13) is integrally formed.

(15) is a sliding member, and a board (16) is arranged on the left side of the left side plate (3) so as to be slidable in the front and back direction;
The drive plate (17) is provided on the upper side of the sub-chassis (4) so as to be slidable in the front-rear direction and engaged with the engagement piece (16)' of the base plate (16), and is installed on the left side plate (3). The two guide pins (18a) and (18b) are inserted into two guide holes (18a) in the front and back direction formed in the base plate (16).
9a) and (19b) respectively, and the driving means slides the tray (5) just before the horizontal loading completion position, so that the driving plate (17) and the substrate (16) interlock and slide forward. (20) and (21) are rotatably supported on the rear ends of the left and right side plates (3) and (4), respectively, by pins (20)' and (21)' implanted in the rear ends. The left and right side plates (3) and (,1) are provided with rotating plates that are long in the front and back direction and are arranged in parallel inside each other, and (22) is a connecting body, and both rotating plates (20) and (21) It is fixed between the lower part of the rear end, and the rotating body (
23).

Then, the guide pin (24) implanted in the left rotation plate (20) is loosely inserted into the rectangular passage hole (25>) of the left side plate (3), and the substrate ( 16)
A diagonally backward inclined guide hole (26
), and by sliding the slide member (15) forward, the guide pin (24) moves backward through the inclined guide hole (26), and the rotating body (23) moves the pin (20)' (2
1) The front end portion is designed to move downward using ' as a rotational fulcrum.

(27) is a connecting member, which is an extension part (5) of the tray (5).
b), the rear end is rotatably supported on the extension part by a support shaft (28), the front part is urged upward by a spring (not shown), and the front part A notched groove (30) is formed at the front end of the lever part (29) that is integrally provided on both sides, and both bent plates (9) of the holder (7) are implanted in both notched grooves (30). The pin (31) is rotatably inserted into the holder (7).
) is connected to the connecting member (27).

(32) are both rotating plates (20) and (21) of the rotating body (23).
), the notch groove (33) is formed at the front end of the connecting member (2
7) is an engaging pin implanted in the center of both lever parts (29), and both engaging pins (33) engage with both notched grooves (32) when the holder (7) moves rearward. When the sliding member (15) moves forward and the front end of the rotating body (23) moves downward, the connecting member (2)
Both lever portions (29) of 7) are pushed down against the biasing force of the spring, so that the holder (7) moves downward.

(34> is a biasing lever whose center part is rotatably supported on the left side surface of the left side plate (3) near the front of the center, and is formed to extend to the base plate (16) of the slide member (15). An abutted piece (34a) is formed opposite to the abutted piece (16a).The abutted piece (35) has both ends connected to the upper end of the biasing lever (34) and the base plate (16a) of the slide member (15). ) and biases the upper end of the biasing lever (34) rearward, (36) is a slide plate, and the left fRIII2
(3) Two guide pins (37
) are inserted into the two short guide holes (38) in the front and rear direction formed at the front end of the left side plate (3), respectively, and the rear guide pin (37) is led out from the rear guide hole (38). The tip of the slide plate (36) comes into contact with the lower end of the biasing lever (34), thereby biasing the slide plate (36) forward.

(39) is a bent piece integrally formed on the front end of the slide plate (36), (40) is an insertion lever, and the center boss (41) is connected to the tray (5) by the support shaft (42). base(
The tray (5a) is pivoted at the center of the front end of the tray (5a), and one end is biased backward by a spring (not shown), and the other end is attached to the tray (5).
When the train (5) moves backward, one end comes into contact with the bending piece (39), and the other end moves backward.

(43) is an auxiliary lever, a boss portion (44) at one end is rotatably supported by a support shaft (45) at the center of the front end of the base (5a) of the tray (5), and both levers (40), (4
The gears (, 4, 6) formed around the boss parts (11) and (44) of 3) mesh with each other, and the insertion lever (4o
), the auxiliary lever (43) rotates. however,
When the other end of the insertion lever (4o) is in contact with the front surface of the base (5a), the other end of the auxiliary lever (43) is also in contact with the base (5a).
5a) so that they are in contact with the front of the levers (4a).
o) and (43) are provided.

(47) is an insertion pin implanted in the other ends of both levers (40) and (43), and by moving the other ends of both levers (40) and (43) backward, the cassette tape ( 6) and push in the rear l\\ of the cassette tape (6). (48) is the cassette in the loading complete state)
These are the two positioning pins of the tee 7' (6).

Although not shown in the drawing, by sliding the tray (5) forward, it moves forward and the cassette tape (
6) is provided with an ejection lever that pushes out the front.

(motion) Next, the operation of the embodiment will be explained.

Now, as shown in FIGS. 1 and 2, the base (5a) of the tray (5) is in the protruding state at the cassette tape loading/unloading position.
When a cassette tape (6) is loaded on the cassette tape (6) and a loader command is issued by operating a loader switch, etc., the drive means is activated and the tray (5) begins to slide backwards, and the tray (5) is horizontally loaded. starts,
When the horizontal loading of the tray (5) is completed f, one end of the insertion lever (40) is folded into the bending piece (
39), and one end of the insertion lever (40) is in contact with the bending piece (39), and as the tray (5) further slides rearward, the other end of the insertion lever (4o) moves backwards, and both insertion pins (47) are inserted into the tray (5).
The cassette tape (6) is placed in contact with the front surface of the cassette tape (6) in the base (5a) of the
is pushed into the holder (7) and held by the holder (7).

When the cassette tape (6) is held in the holder (7), the protrusion releases the closing lock of the slider (13) of the cassette tape (6), and the locking claw (
14) regulates the slider (13), and the slider (
13) is still regulated, the cassette tape (6) is pushed further backward by both insertion pins (47), the slider (13) slides, and the tray (5) completes horizontal loading. By the time you reach the position
The reel boss insertion hole (12) of the cassette tape (6) is opened.

At this time, until the tray (5) reaches just before the horizontal loading completion position, the slide member (15) does not slide forward, and the upper end of the biasing lever (34) is pushed backwards by the spring (35). \Since it is in a strongly biased state, the slide plate (36) is biased forward by the biasing lever (34), and one end of the insertion lever (4o) in contact with the bending piece (39) is subjected to a strong reaction by the bending piece (39), and the insertion pin (47) is inserted into the cassette tape (
6) The force that presses the front side increases.

Next, when the tray (5) slides to just before the horizontal loading completion position, the sliding member (
15) begins to slide forward, and the slide member (15)
When the tray (5) slides slightly forward, the tray (5) reaches the horizontal loading completion position and horizontal loading is completed, and the sliding member (15) further slides forward, so that the front end of the moving body (23) It starts to move downward,
Vertical loading starts.

By the downward movement of the front end of the rotating body (23), both levers (2) of the connecting member (27) are moved through the engagement pin (33).
9) is pushed down, and the holder (7) holds the cassette tape (
6), and when the slide member (15) finishes sliding forward, the front end of the rotating body (23) stops moving downward, and the holder (7) stops moving downward and moves vertically. Loading is complete. The state upon completion of vertical loading is as shown in FIGS. 3 and 4.

At this time, as the slide member (15) slides forward, the abutment piece (16a) of the board (16) is pushed against the biasing lever (
34) and the biasing lever (34a).
4〉The lower end part is separated from the guide pin (37) and the spring (
The rearward biasing force of the upper end of the biasing lever (34) by the biasing lever (35) is eliminated. In this case, the forward biasing force of the slide plate (36) by the biasing lever (34) is eliminated, and the insertion lever (40) that is in contact with the bending piece (39) is removed.
) to one end of the cassette tape (39) is eliminated, and the insertion pin (47) after horizontal loading is completed has no force pressing against the front surface of the cassette tape (6).

Therefore, as in the past, during vertical loading of the cassette tape (6), the insertion pin (47)
), even if it remains in contact with the front surface of the
Due to the disappearance of the reaction force caused by the bent piece (39) at one end l\ of the insertion lever (4o), the pressing force of the insertion pin (47) on the front surface of the cassette tape (6) after horizontal loading is completed, so that the conventional This prevents the case of the cassette tape (6) from being damaged or deformed, and even after loading is completed, the cassette tape (47) does not hold the cassette tape (
6) Since the contact state with the cassette tape (
Even if the lock W1 mechanism of the slider (13) in 6) is insufficient and the open long part of the slider (13) comes off due to external force, the slider (13) will be held in the open state, and it will not work during unloading as in the conventional case. This prevents abnormalities from occurring.

By the way, after the above-mentioned loading operation is completed, the magnetic tape is run, recording, playback, etc. are completed, and when an unloading command is given by operating an unloading inch or the like, the driving means performs the operation in the opposite manner to the above-mentioned loading operation. , the slide member (15) moves backward and the holder (7) moves upward, and after the upward movement of the holder (7) is completed, the tray (5)
) slides forward, and as the tray (5) slants forward, the ejection lever moves forward and the cassette tape (6) is released from the holder (7) to the base (5) of the tray (5).
a), and when the tray (5) slides further forward and reaches the cassette tape loading/unloading position, the tray (5)
) will stop sliding and unloading will be completed.

Thus, according to the embodiment, the slide member (15
), the biasing force of the spring (35) is lost and the slide plate (36) is moved by the biasing lever (34).
The forward biasing force of the insertion lever (4) can be eliminated.
0) With the disappearance of the reaction caused by the bent piece (39) at one end, the pressing force of the insertion pin (47) on the front surface of the cassette tape (6) after horizontal loading is completed can be reduced to nothing. Therefore, as in the past, cassette tapes (
6) case tJ! It is possible to prevent @ and deformation.

In addition, since the insertion pin (47) remains on standby in front of the cassette tape (6) even after loading is completed, the biasing lever (34 ) comes into contact with the guide pin (37), the biasing force of the spring (35) is transmitted to the insertion lever (40), and a pressing force is generated.

Therefore, even for a cassette tape with an insufficient self-locking function, there is no problem of ε, which makes it impossible to take out the cassette tape when ejecting it.

(G) Effects of the Invention As explained above, the present invention provides IJIr1! , the following effects are achieved.

By sliding the slide member forward, the biasing force of the spring is removed and the forward biasing force of the slide plate by the biasing lever is eliminated, and the insertion pin is pushed against the front of the cassette tape after the horizontal rope is completed. Since the pressure can be eliminated, even if the insertion pin is in contact with the cassette tape during vertical loading, it is possible to prevent damage or deformation of the cassette tape case, and even after loading is complete, the cassette By holding the tape slider in an open state, it is possible to prevent abnormalities from occurring during unloading as in the prior art.

[Brief explanation of drawings]

The drawings show one embodiment of the cassette tape loading device of the present invention, FIGS. 1 and 2 are a plan view and a left side view in one state, and FIGS. 3 and 4 are a plan view and a left side view in a different state. It is a left side view. (2)...Subchassis, (5)...Tray, (6
)...Cassette tape, (7)...Holder, (15
)...Sliding member, (15a)...Abutting piece, (2
3)...Rotating body, (34)...Biasing lever, (34
a)...Abutted piece, (35)...Spring, (36)...
...Sliding plate, (39)...Bending piece, (40>...
- Insertion lever (47)...Insertion pin. Ditch 3 Figure 2...size)'' Chassis 5...Tray 6...17 J'r-F7...Nelter 15...25I F4FF? υ...D moving body...子'*bt(-35・-・1f give 36・・Sly F nameless blade...bending piece 40...weigher/1゛-47・・Static Ac shi 4th rl! J 2・・・Ding γ Sea Ishi 5 ・・1 Reiro...Power + Misaki To γ 7...Ishi T 15...λ Rai F: 1 do stone r D...ib 34... i oathし・τ− 35...1 ← 35... Sly P'& O... bending piece 40... nushi・(- 47... God Acz

Claims (1)

[Claims] (1) a tray that slides back and forth between a cassette tape attachment/detachment position and a horizontal loading completion position by a driving means; a holder that is provided on the tray to be vertically movable and holds the cassette tape; and a holder that holds the cassette tape; a rotating body that moves the holder downward to bring the cassette tape to a playing position when the horizontal loading completion position is reached; and means for forcibly dissipating the spring biasing force applied to the insertion pin when the rotating body brings the cassette tape to the playing position. Cassette tape loading device.