JPH11328789A - Mechanism for ejecting recording/reproducing medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain the smooth insertion of a recording/reproducing medium into a holder and to increase the force for ejecting the recording/reproducing medium ejected from the holder. SOLUTION: This mechanism is provided with a holder 3 for holding a recording/reproducing medium 27, a first moving lever 7 movable in an pulling-in action direction for pulling a recording/reproducing medium 27 into the holder 3 and in an ejecting action direction for ejecting the recording/reproducing medium 27 from the holder 3, and a second moving lever 8 followingly moved in the same direction as that of the first moving lever 7 to pull-in or eject the recording/reproducing medium 27. In this case, a first spring member 17 and a second spring member 18 having a spring force larger than that of the former are tensely provided in a connected state between the first and second moving levers 7 and 8, a moving force is applied in an ejecting direction to the second moving lever 8 by the first spring member 17, the second moving lever 8 is provided with a regulating section 15 for regulating the spring force of the first spring member 17 to a specified quantity, and when the spring force of the first spring member 17 is regulated by the regulating section, the second moving lever 8 by the second spring member 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a recording / reproducing medium discharging mechanism. More specifically, the present invention relates to a technique for maintaining smooth insertion of a recording / reproducing medium into a holder and improving a discharging force for the recording / reproducing medium discharged from the holder.

[0002]

2. Description of the Related Art There is a recording / reproducing apparatus capable of recording and / or reproducing an information signal on / from a recording / reproducing medium. Such a recording / reproducing apparatus includes a cassette tape player using a tape cassette as a recording / reproducing medium. And cassette tape recorders.

[0003] Such a cassette tape player or the like is provided with a holder for holding the tape cassette. When the tape cassette is inserted from the front opening of the holder, the tape cassette is inserted into the holder at a predetermined amount. When the eject switch is operated after the playback is completed and the eject switch is operated, the tape cassette is ejected from the holder, a part of which is projected from the opening, and the tape cassette is taken out. There are things that can be done.

The ejecting of the tape cassette urges the ejecting lever to move the ejecting lever in a direction to act to eject the tape cassette by a spring member. When the ejecting switch is operated, the ejecting lever is moved. Is performed by moving a lever of the tape cassette in the direction to push out the tape cassette.

[0005] In such a cassette tape player or the like, the tape cassette is inserted against the urging force of the spring member until the tape cassette is inserted by a predetermined amount.

[0006]

However, in the above-described cassette tape player or the like, there is a possibility that a problem that the tape cassette is not ejected from the holder may occur.

For example, in the case of an in-vehicle cassette tape player or the like, if the temperature inside the vehicle rises to about 80 ° C. in some cases, the case body of the tape cassette is deformed. There is a possibility that the sheet is caught in the holder and is not discharged from the holder. Usually, a label for writing the content recorded on the magnetic tape is affixed to the case body of the tape cassette, but the label is peeled off due to the above-mentioned temperature rise or the like, and the label is caught by the holder. There is also a risk that the discharge of the water will not be performed.

As means for solving such a problem, a force of a spring member for urging a moving force in a direction acting to eject the tape cassette to the ejecting lever is increased, and the ejecting lever for ejecting the tape cassette is increased. Consideration is given to increasing the discharge force of the lever.

However, when the force of the spring member is increased, the tape cassette must be inserted against the urging force of the spring member having a high force when the tape cassette is inserted into the holder. A problem arises in that the sense of resistance is increased and the usability is reduced.

Therefore, the recording / reproducing medium discharging mechanism of the present invention overcomes the above-mentioned problems, maintains the smooth insertion of the recording / reproducing medium into the holder, and discharges the recording / reproducing medium discharged from the holder. The task is to improve

[0011]

According to the present invention, there is provided a recording / reproducing medium discharging mechanism, comprising: a holder for holding a recording / reproducing medium capable of recording and / or reproducing an information signal; The second movable direction is a direction in which the recording / reproducing medium is drawn into the holder by the drive of the motor (drawing direction) and a direction in which the drawn recording / reproducing medium is discharged from the holder (ejection direction). A second movement for moving the first moving lever and the first moving lever in the same direction as the moving direction to draw the recording / reproducing medium into the holder or discharge the recording / reproducing medium from the holder. A first spring member and a second spring member having a greater spring force than the first spring member are connected to each other between the first moving lever and the second moving lever in a state where the first spring member and the second spring member having a larger spring force are connected to each other. Stretching The first moving member biases the second moving lever with a moving force in the discharge action direction, and the second moving lever restricts the spring force of the first spring member to a predetermined force. It is provided.

Therefore, in the recording / reproducing medium discharging mechanism of the present invention, the first moving lever is moved in the discharging operation direction by the driving of the motor, and the second moving lever is discharged by the urging force of the first spring member. When the spring force of the first spring member is restricted by the restricting portion when it is moved in the action direction, the second
The moving force in the discharging direction is urged by the second spring member to the moving lever.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a recording / reproducing medium discharging mechanism according to the present invention will be described below with reference to the accompanying drawings.

In the following embodiment, the recording / reproducing medium discharging mechanism of the present invention is applied to a tape cassette discharging mechanism in a cassette tape player.

First, the configuration of the cassette tape player will be described.

As shown in FIG. 1, the cassette tape player 1 includes a mechanical chassis 2 and a holder 3, and the holder 3 is rotatably supported by the mechanical chassis 2.

The mechanical chassis 2 has a bottom surface 2a and side surfaces 2b.
The side portion 2b is provided upright from the left edge of the bottom portion 2a. A support piece 2c is formed to protrude upward from the position near the rear end of the side surface portion 2b and further protrude rightward.

The holder 3 comprises a rotating portion 4 located on the rear side and a cassette holding portion 5 located on the front side (see FIG. 1).

The rotating portion 4 has a flat plate shape except for a rear end portion.
A supported piece 4a protrudes downward from a position near the rear end of the left edge, and the rear end of the supported piece 4a is rotatably supported by the side surface 2b of the mechanical chassis 2. . A supported piece (not shown) protrudes downward from a position near the rear end of the right edge of the rotating portion 4, and the supported piece protrudes upward from the bottom surface 2 a of the mechanical chassis 2. Is rotatably supported by a supporting portion (not shown). A support hole 4b is formed at the center of the rotating portion 4 in the left-right direction, and the support hole 4b is formed to be long in the front-rear direction.

The cassette holding portion 5 includes an upper wall 5a and side walls 5b protruding downward from both side edges of the upper wall 5a.
5b and supporting pieces 5c, 5c protruding from the lower edges of the side walls 5b, 5b toward the direction approaching each other are integrally formed. As shown in FIGS. 1 and 7, a substantially central portion of the upper surface wall 5a in the front-rear direction, that is, a center of gravity of the cassette holding portion 5 extends in the left-right direction and is projected upward and projected like a square. A driving portion 5d is formed.
support recess 5 opened downward and rearward due to formation of d
e, 5e are formed left and right apart. The upper surface wall 5a is located behind the embossed portion 5d, and
The supported projections 5f, 5f are provided to project upward to face the rear ends of e, 5e.

The rotating portion 4 is formed with projections 4c, 4c protruding forward from the front edge thereof and separated from each other in the left and right direction. The projections 4c, 4c are located rearward of the projections 4c, 4c.
Support holes 4d, 4d are formed at positions corresponding to 4c. Then, the projections 4c, 4c of the rotating portion 4 are inserted into the support recesses 5e, 5e of the cassette holding portion 5 from behind and are positioned in the space formed by the ejection portion 5d, and the supported projections of the cassette holding portion 5 The cassette holding unit 5 is relatively rotated with respect to the rotation unit 4 by inserting and supporting the reference numerals 5f and 5f from below into the support holes 4d and 4d of the rotation unit 4.

That is, as will be described later, the rotating portion 4 is rotated with respect to the mechanical chassis 2 so that the front end thereof moves in the vertical direction.
Is rotated relative to. The center of gravity of the cassette holding portion 5 is supported by the turning portion 4, and the cassette holding portion 5 is viewed from the side when the turning portion 4 is turned with respect to the mechanical chassis 2. The horizontal state is maintained without rotating clockwise or counterclockwise.

The supported projection 5 of the cassette holding section 5
f and 5f are formed to have a length such that they do not fall out of the support holes 4d and 4d of the rotating unit 4 when the cassette holding unit 5 is rotated relative to the rotating unit 4. I have.

A catcher 6 is provided in the support hole 4b of the rotating portion 4.
Are movably supported in the front-rear direction. The catcher 6 is formed of a flexible resin material, and has a main portion 6a long in the front-rear direction, an engaging portion 6b protruding downward from the front end of the main portion 6a, and upward from the rear end of the main portion 6a. The rear end of the main part 6a is supported by the support hole 4b movably in the front-rear direction. And
The engaging portion 6b is located on the front side and is gradually displaced downward as it goes rearward. The rear inclined surface 6c is located on the rear side and displaced downward as it goes forward.
d.

A first moving lever 7 and a second moving lever 8 are supported on the side surface 2b of the mechanical chassis 2 so as to be movable in the front-rear direction. The first moving lever 7 is connected to the side surface 2b and the second moving lever 8.
(See FIG. 1) in contact with the second moving lever.

The first moving lever 7 has a supported portion 9 long in the front-rear direction supported by the side portion 2b and a projecting portion 10 protruding leftward from the lower edge of the supported portion 9. doing.
An engaging piece 9a and a spring hooking piece 9b project leftward from the upper edge of the supported portion 9 while being separated from each other back and forth (FIGS. 1 and 2).
Reference piece), the engagement piece 9a is located slightly below the spring hook piece 9b. A rack 10a is formed in the front half of the left edge of the projecting portion 10.

The second moving lever 8 includes a supported portion 11 which is supported by the side surface portion 2b and which is long in the front-rear direction, an operation portion 12 which protrudes downward from a front end of the supported portion 11, and a supported portion 11 And a support portion 13 protruding from the upper edge of the rear end portion. A spring hook 11a protrudes leftward from the upper edge of the front end of the supported portion 11 (see FIGS. 1 and 2).

An engaging piece 14 projects upward from an upper edge of the supported portion 11 near the front end, and a regulating piece 15 projects leftward from the front edge of the engaging piece 14. (See FIGS. 1 and 2). The regulating piece 15 is formed so that its main surface faces in the front-rear direction, and has a slit 15a that opens leftward at the center in the vertical direction (see FIG. 2). And, from the front side, the spring hooking piece 11a of the second moving lever 8, the restricting piece 15, and the spring hooking piece 9b of the first moving lever 7 are located apart from each other in this order. The engaging piece 9a of the first moving lever 7 is located behind the regulating piece 15 and at a height corresponding to the lower end thereof such that the tip is on the left side of the regulating piece 15. .

The support portion 13 is formed so as to project rightward from the supported portion 11 and further project rearward, and has a guide hole 16 formed therein. The guide hole 16 is composed of an arc-shaped portion 16a projecting obliquely forward and rightward and a straight portion 16b extending rearward from the right end of the arc-shaped portion 16a.

A first extension coil spring 17 and a second extension coil spring 18 are connected to each other between a spring hook 9b of the first moving lever 7 and a spring hook 11a of the second moving lever 8. It is stretched in a state (see FIGS. 1 and 2).

The first tension coil spring 17 has a coil portion 17.
a and a hook portion 17b continuous with the front end of the coil portion 17a
And an extended portion 1 that is continuous with the rear end of the coil portion 17a and extends back and forth.
7c and a hook portion 17d connected to the rear end of the extension portion 17c
Consisting of The second tension coil spring 18 has a coil portion 18a, a hook portion 18b continuous with the rear end of the coil portion 18a, and a hook portion 18 continuous with the front end of the coil portion 18a.
c. The first tension coil spring 17 and the second tension coil spring 18 are connected by engaging the hook portions 17d and 18c. The first tension coil spring 17 has a weaker spring force, and the second tension coil spring 18 has a stronger spring force than the first tension coil spring 17.

The hook portion 17 of the first tension coil spring 17
b is locked by a spring hooking piece 11a of the second moving lever 8, and a hook portion 18b of the second extension coil spring 18 is hooked by a spring hooking piece 9b of the first moving lever 7. With the first extension coil spring 17 and the second moving lever 18 thus stretched between the first moving lever 7 and the second moving lever 8, the extension 17c The second moving lever 8 is in a state of being inserted through the slit 15a of the restricting piece 15 (see FIG. 2). When both the first moving lever 7 and the second moving lever 8 are located at the rear end in the moving range, the regulating piece 15 and the coil portion 17a of the first extension coil spring 17 are in a state of being separated. The first extension coil spring 17 is slightly extended, and the second extension coil spring 18 is not extended at all (see FIG. 2).

The pivoting lever 19 is formed by integrally forming a main part 20 and a protruding part 21, and a portion near the rear end of the main part 20 is rotatably supported by the tip of the support piece 2 c of the mechanical chassis 2. And the projecting portion 21 is separated from the main portion 20 by the catcher 6.
Are protruded in the direction where they are located (see FIG. 1).

A shaft pin 20a protruding upward is formed at a position corresponding to the rotation fulcrum of the rotation lever 19.
Has an engagement pin 20b projecting upward at a position separated from the shaft pin 20a. Then, the shaft pin 20a is inserted from below into the guide hole 16 of the second moving lever 8 and is slidably engaged with the guide hole 20 while the engaging pin 20b slides on the guide hole 16. It is movably engaged.

The projecting portion 21 is formed with an elongated engaging hole 21a extending in the projecting direction, and the engaging pin 6c of the catcher 6 is slidably engaged with the engaging hole 21a ( (See FIG. 1).

A base plate 22 is attached to the bottom surface 2a of the mechanical chassis 2, and the base plate 22 is positioned slightly below the bottom surface 2a (FIG. 1).
reference). The base plate 22 is positioned so that its left end protrudes leftward from the left end of the mechanical chassis 2, and a motor 23 is supported at the rear end of the left end. A worm 24 is fixed to a motor shaft 23a of the motor 23.

A drive gear group including a worm wheel 25a and a two-stage gear 25b supported on the left end of the base plate 22 is arranged. The first moving lever 7 is engaged with the rack 10a.

A detection switch 26 operated by the operation section 12 of the second moving lever 8 is disposed on the base plate 22, and the detection switch 26 has a detector 26a (see FIG. 3). When the second moving lever 8 is located at the rear end in the moving range, the operation unit 12 operates the detector 26a to cut off the supply of current to the motor 23, and the second moving lever 8 Is moved from the rear end of the movement range, the operation of the operating section 12 on the detector 26a is released, and a current can be supplied to the motor 23. When a current is supplied to the motor 23 and the motor 23 is rotated, the first moving lever 7 is moved in the front-rear direction via the driving gear group in accordance with the rotation direction of the motor 23.

Next, the operation of the cassette tape player 1 will be described with reference to FIGS.

In the state shown in FIG. 3, that is, when the first moving lever 7 and the second moving lever 8 are located at the rear ends in the moving range, the engaging pin 20b of the rotating lever 19 is moved to the second position. The left end of the arcuate portion 16a of the guide hole 16 of the moving lever 8 is engaged, and the shaft pin 20a is located at the front end of the linear portion 16b. And the catcher 6 is located at the front end in the movement range. Further, as described above, the operation section 12 of the second moving lever 8 operates the detector 26a of the detection switch 26 to cut off the supply of current to the motor 23, and the second moving lever 8
Restriction piece 15 and coil portion 1 of first tension coil spring 17
7a. Further, the engaging piece 9a of the first moving lever 7 is located slightly behind the lower end of the engaging piece 14 of the second moving lever 8.

The holder 3 is provided on the bottom 2 of the mechanical chassis 2.
It is located slightly above and slightly apart from a.

When the tape cassette 27 is inserted into the cassette holder 5 of the holder 3 from the front, the catcher 6
The engaging portion 6b of the tape cassette 27
a (see FIG. 3). In addition, the engaging portion 6b
Is engaged with the opening edge of the hub hole 27a by the tape cassette 2
7, the rear edge slides on the front inclined surface 6c of the engaging portion 6b to deflect the front end of the catcher 6 upward, and further, the tape extends to a position where the engaging portion 6b corresponds to the hub hole 27a. When the cassette 27 is inserted rearward, the bent front end of the catcher 6 returns to the original state, and the rear inclined surface 6d of the engaging portion 6b engages with the opening edge of the hub hole 27a. It has become so.

When the tape cassette 27 is further inserted into the holder 3 from the state shown in FIG. 3, the catcher 6 engaged with the hub hole 27a is guided by the support hole 4b and is moved rearward. The rotation lever 19 connected to the catcher 6 is rotated counterclockwise when viewed from above by the engagement between the pin 6c and the engagement hole 21.

At this time, the engaging pin 20 of the rotating lever 19
b acts to press the opening edge of the arcuate portion 16a forward, and the second moving lever 8
Is moved slightly forward against the spring force of. The forward movement of the second moving lever 8 cancels the operation of the operating section 12 on the detector 26a of the detection switch 26 fixed on the base plate 20 (see FIG. 4).

When the second moving lever 8 is moved forward, the first tension coil spring 17 is moved to its coil portion 17.
a is extended until the rear end thereof contacts the restriction piece 15 of the second moving lever 8. On the other hand, the second tension coil spring 18
The second moving lever 8 does not extend even if the second moving lever 8 moves forward because the spring force is stronger than the tension coil spring 17.

As described above, the tape cassette 27
Of the first tension coil spring 17
Is extended, so that the insertion of the tape cassette 27 is
The first tension coil spring 17 does not need to be extended by a predetermined amount.
Since the spring force of the tape cassette 27 is weakened, smooth insertion of the tape cassette 27 is secured without feeling large resistance when the tape cassette 27 is inserted.

When the operation of the operation unit 12 on the detector 26a is released, a current is supplied to the motor 23, and the motor 2
3 is rotated in one direction, and the two-stage gear 25b is rotated clockwise when viewed from above by driving the drive gear group. When the motor 23 is rotated and the two-stage gear 25b is rotated clockwise, the rack 10a of the first moving lever 7 meshed with the second gear 25b is sent forward, and the first moving lever 7 is moved forward. It is moved to.

When the first moving lever 7 is moved forward by the driving force of the motor 23, the engaging piece 9a
Is engaged with the left edge of the engaging piece 14 of the moving lever 8. Then, at this time, when the first moving lever 7 is moved forward, the extended tension coil spring 17 contracts and returns to the original state.

When the first moving lever 7 is further moved forward, the engaging piece 14 of the second moving lever 8 is pressed forward by the engaging piece 9a.
And the second moving lever 8 are integrally moved forward.

When the second moving lever 8 is moved to the first moving lever 7
When moving forward, the engagement pin 20b of the rotating lever 19 moves rightward in the arcuate portion 16a of the guide hole 16 and the shaft pin 20a moves in the linear portion 16a.
b, it is relatively located at the rear end side. Therefore,
The rotation lever 19 is rotated counterclockwise when viewed from above, and the catcher 6 connected to the rotation lever 19 is moved rearward by the engagement between the engagement hole 21 and the engagement pin 6c, and the tape is rotated. The cassette 27 is drawn into the holder 3 (see FIG. 5).

Further, the driving force of the motor 23 causes the first
When the moving lever 7 and the second moving lever 8 are moved forward and the engaging pin 20b of the rotating lever 19 is located at the front end of the linear portion 16b of the guide hole 16, the rotation of the rotating lever 19 is stopped. At this time, the catcher 6 is positioned at the rear end in the movement range, and the pull-in of the tape cassette 27 is completed.

After the tape cassette 27 has been pulled in, the motor 23 is still rotating, and the first moving lever 7 and the second moving lever 8 are moved forward. Second
When the moving lever 8 is moved forward together with the first moving lever 7, the shaft pin 20a of the rotating lever 19 and the engaging pin 2
0b is relatively moved backward in the linear portion 16b of the guide hole 16. At this time, the rotating portion 4 of the holder 3 is rotated by a cam mechanism (not shown) so that the front end thereof moves downward.

Even if the rotating section 4 is rotated, the cassette holding section 5
Is held in a horizontal state, the cassette holder 5 is moved downward with the rotation of the rotation unit 4, and the tape cassette 27 held by the cassette holder 5 is moved downward. When the cassette holding portion 5 is moved downward, the engagement of the engaging portion 6b of the catcher 6 with the opening edge of the hub hole 27a of the tape cassette 27 is released.

When the tape cassette 27 is moved downward, the mechanical chassis 2 is rotatably supported by the base plate 22 in hub holes 27a, 27a of the tape cassette 27.
A hub drive shaft (not shown) protruding upward from the bottom surface portion 2a is fitted. When the tape cassette 27 is located at the lower moving end, the loading of the tape cassette 27 is completed (see FIGS. 6 and 7), and the rotation of the motor 23 is started upon receiving a command from a microcomputer (not shown). Stopped, the first moving lever 7 and the second
Of the moving lever 8 is stopped. When the loading of the tape cassette 27 is completed as described above, a state where reproduction or the like is possible is established.

As described above, after the tape cassette 27 is loaded and reproduction is performed, when the eject switch (not shown) is operated, the motor 23 is rotated in the opposite direction to the above, and the two-stage gear 25b is viewed from above. The rack 10a meshed with the rack 10a is sent rearward by being rotated counterclockwise, and the first moving lever 7 is moved rearward.

At this time, the second moving lever 8 is urged backward by the first tension coil spring 17 so that the second moving lever 8 moves backward of the first moving lever 7. It is moved backward with. Then, when the second moving lever 8 is moved backward, the rotating portion 4 of the holder 3 is rotated by the cam mechanism so that the front end portion is moved upward, and the tape cassette 27 is moved upward, Further, when the second moving lever 8 is moved backward, the rotating lever 19 is rotated clockwise as viewed from above, the catcher 6 is moved forward, and the tape cassette 27 is moved.
Is discharged from the holder 3.

When the second moving lever 8 is positioned at the rear moving end in the moving range, the ejecting operation of the tape cassette 27 is completed, and the operating section 12 operates the detecting element 26a of the detecting switch 26 to operate the motor 23.
The supply of current to is stopped, and the state returns to the state of FIG. Then, the tape cassette 27 can be taken out of the holder 3 by grasping and pulling the tape cassette 27 forward in the state of FIG.

When the case of the tape cassette 27 is deformed when the tape cassette 27 is ejected from the holder 3 or the label attached to the surface of the case is peeled off, the tape cassette 27 is caught on the holder 3. And may not be discharged.

However, in the cassette tape player 1 described above, the discharging force to the tape cassette 27 is increased so that the tape cassette 27 can be reliably discharged even in such a case (FIG. 8). reference).

When the tape cassette 27 is caught on the holder 3 during the discharging operation, the second moving lever 8 is not moved backward, but the first moving lever 7 is moved backward by the driving force of the motor 23. Go.

When the first moving lever 7 is moved backward, the first tension coil spring 17 is extended and the coil portion 1 is moved.
7a contacts the restricting piece 15 of the second moving lever 8. When the coil portion 17a comes into contact with the regulating piece 15 in this manner, its extension is regulated, and the first tension coil spring 17 is not extended any more. Therefore, as the first moving lever 7 is further moved rearward, the second tension coil spring 18 having a larger spring force than the first tension coil spring 17 is pulled rearward, and the second tension coil spring 18 is extended. (See FIGS. 8 and 9).

As the second extension coil spring 18 having such a large spring force is extended, the backward extension force of the second moving lever 8 is increased by the second extension coil spring 18, and as a result, The second moving lever 8 is moved backward. When the second moving lever 8 is moved rearward, as described above, the rotating lever 19 is rotated clockwise as viewed from above, and the tape cassette 2 is rotated.
7 is discharged from the holder 3.

As described above, in the cassette tape player 1, when the tape cassette 27 is inserted, it is sufficient to insert the tape cassette 27 against the weak spring force of the first extension coil spring 17, so that the tape cassette 27 can be inserted smoothly. When the tape cassette 27 is caught in the holder 3 when the tape cassette 27 is discharged, the second
The tension force of the tension coil spring 18 increases the ejection force, so that the tape cassette 27 can be ejected reliably.

The first tension coil spring 17 and the second tension coil spring 18 are connected by forming a hook portion 17d and a hook portion 18c on both of them and engaging them with each other. Can be performed very easily.

Further, since the regulating piece 15 for regulating the extension of the first tension coil spring 17 is formed integrally by bending a part of the second moving lever 8, the regulating piece 1 is formed.
The processing operation of the cassette tape player 1 is extremely easy, and the production cost of the cassette tape player 1 does not increase by forming the restriction piece 15.

[0066]

As is clear from the above description, the recording / reproducing medium discharging mechanism of the present invention comprises a holder for holding a recording / reproducing medium capable of recording and / or reproducing an information signal, and a motor / motor. Direction of pulling the recording / reproducing medium into the holder by driving (pulling direction)
A first moving lever movable in a direction (discharging operation direction) in which the recording / reproducing medium withdrawn is discharged from the holder, and the same direction as the first moving lever moves with the movement of the first moving lever. To move the recording / reproducing medium into the holder or eject the recording / reproducing medium from the second holder.
The first moving member and the second moving lever are connected in a state where the first spring member and the second spring member having a larger spring force than the first spring member are connected to each other. The second moving lever is biased by the first spring member to move in the discharge action direction, and the second moving lever is applied with the spring force of the first spring member by a predetermined force. A regulating portion for regulating the force is provided, and when the first moving lever is moved in the discharging action direction by driving the motor and the second moving lever is moved in the discharging action direction by the urging force of the first spring member. When the spring force of the first spring member is regulated by the regulating portion, a movement force in the discharge action direction is urged by the second spring member to the second movement lever. .

Accordingly, when the recording / reproducing medium is inserted into the holder, it is sufficient to insert the recording / reproducing medium against the spring force of the first spring member, so that a smooth insertion of the recording / reproducing medium is ensured, and the recording / reproducing medium is discharged. When the recording / reproducing medium is caught in the holder, the discharging force is increased by the second spring member, and the recording / reproducing medium can be reliably discharged.

According to the second aspect of the present invention, the first
The first spring member and the second spring member are both formed as coil springs, one end of the first spring member and one end of the second spring member are formed as hook portions, and the hook portions are engaged with each other. Since the first spring member and the second spring member are connected to each other, the work of connecting the first spring member and the second spring member can be performed extremely easily.

According to the third aspect of the invention, since the restricting portion is formed integrally with the second moving lever as a restricting piece by bending, the working of the restricting portion is extremely easy. Does not increase the manufacturing cost of the recording / reproducing apparatus.

It should be noted that the specific shapes and structures of the respective parts shown in the above-described embodiment are merely examples of the embodiment when practicing the present invention.
These should not be construed as limiting the technical scope of the present invention.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a recording / reproducing medium ejection mechanism of the present invention together with FIGS. 2 to 9, and FIG. 1 is a schematic perspective view of a cassette tape player to which the present invention is applied.

FIG. 2 is an enlarged side view showing a state before a first extension coil spring and a second extension coil spring are both extended.

FIG. 3 shows the operation of the cassette tape player together with FIGS. 4 to 9, and is a schematic plan view showing a state immediately after the tape cassette is inserted into the holder.

FIG. 4 is a schematic plan view showing a state in which the tape cassette is inserted into the holder, the second moving lever is slightly moved forward, and the operation of the detection switch by the operation unit is released, following FIG. 3;

FIG. 5 is a schematic plan view showing a state where the tape cassette is drawn into the holder, following FIG. 4;

FIG. 6 is a schematic plan view showing a state in which the tape cassette is further drawn into the holder and loading of the tape cassette is completed, following FIG. 5;

FIG. 7 is a schematic vertical sectional view showing a state where loading of the tape cassette is completed.

FIG. 8 is a schematic plan view showing a state in which a second tension coil spring is extended and a discharging force is increased in a process of discharging the tape cassette.

FIG. 9 is an enlarged side view showing a state where a second tension coil spring is extended.

[Explanation of symbols]

Reference numeral 3 denotes a holder, 7 denotes a first moving lever, 8 denotes a second moving lever, 15 denotes a regulating piece (a regulating portion), 17 denotes a first tension coil spring (a first spring member), and 17d denotes a hook portion. …
Second tension coil spring (second spring member), 18c hook part, 23 motor, 27 tape cassette (recording / reproducing medium)

Claims (3)

[Claims] 1. A holder for holding a recording / reproducing medium capable of recording and / or reproducing an information signal, and a direction for pulling the recording / reproducing medium into the holder by driving a motor (hereinafter referred to as “drawing action”). A first moving lever, which is movable in a direction (hereinafter, referred to as a “discharging direction”) that acts to eject the drawn recording / reproducing medium from the holder (hereinafter, referred to as a “discharging operation direction”). A second moving lever for moving the recording / reproducing medium into the holder or discharging the recording / reproducing medium from the holder by moving in the same direction as the moving direction of the first spring member; The first spring member is connected to a second spring member having a greater spring force than the first spring member.
Between the moving lever and the second moving lever,
The second moving lever is biased by the first spring member in the direction of the discharging action, and the second moving lever is provided with a regulating portion for regulating the spring force of the first spring member to a predetermined amount. When the first moving lever is moved in the discharging action direction by the driving of the motor and the second moving lever is moved in the discharging action direction by the urging force of the first spring member, the spring of the first spring member is moved. A recording / reproducing medium discharging mechanism wherein a moving force in a discharging direction is urged by a second spring member to a second moving lever when a force is regulated by a regulating portion. 2. The first spring member and the second spring member are both coil springs. One end of the first spring member and one end of the second spring member are formed as hooks, and The first hook
The recording / reproducing medium discharging mechanism according to claim 1, wherein the spring member and the second spring member are connected. 3. The recording / reproducing medium discharging mechanism according to claim 1, wherein the restricting portion is a restricting piece formed integrally with the second moving lever by bending.