JP2956374B2 - Cassette loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact cassette loading apparatus.

[0002]

2. Description of the Related Art In a conventional cassette loading apparatus,
In many cases, a cassette tape is mounted on a tape mounting holder, and only the tape mounting holder is opened and closed by a dedicated motor. Therefore, a loading board that constitutes an opening / closing mechanism including a dedicated motor and the like has been separately required.

Hereinafter, a conventional cassette loading apparatus will be described with reference to the drawings. FIG. 16 is a perspective view schematically illustrating a conventional cassette loading apparatus.
Reference numeral 101 denotes a housing, which shows an arrangement of a loading mechanism. In order to supply the cassette tapes 103 to two tape playing mechanisms 102 provided side by side inside the housing 101 and play the tapes, respectively, tape mounting holders 104 are provided side by side at positions corresponding to the tape playing mechanisms 102, respectively. Dedicated motor 10 provided on loading board 106
The tape mounting holder 104 is opened and closed in the direction of the arrow by the force of 5, and the cassette tape 103 is supplied to and removed from the tape playing mechanism 102.

[0004]

However, in the conventional cassette loading apparatus as described above, the user inserts his hand into the tape mounting holder 104 and puts the cassette tape 103
It was inconvenient to operate because of taking in and out. In addition, since the tape mounting holder is opened and closed using the dedicated motor 105, a loading substrate 106 is required,
The entire loading mechanism was large, making assembly work difficult and costly.

In view of the above-mentioned conventional problems, the present invention can open and close the tape mounting holder and drive the cassette tape in the vertical direction, so that the cassette tape can be easily taken in and out, and the compactness and the ease of assembly are good. It is an object of the present invention to provide an inexpensive cassette loading device.

[0006]

Cassette loading apparatus of the present invention to solve the above problems SUMMARY OF THE INVENTION is the chassis which constitutes the tape playing mechanism, a gear driven by a drive source, it is movably supported by the chassis A drive rack, a holder pivotally supported to be able to open and close with respect to the chassis, a drive lever pivotally supported by the drive rack to drive the holder in the opening and closing direction, and a cassette tape guided by the holder to the holder. A cassette holder for storing and unloading the cassette rack, the drive lever drives a pair of elevating gears and a holder pivotally supported by the holder to drive the cassette holder, and the drive rack moves in one direction to move the cassette holder. Rotate the holder in the opening direction and take out the cassette tape from the holder. By movement in the other direction of movement the rack is configured to perform a pivoting in the closing direction of the holder and accommodating the cassette tape to the holder, take-out position
Insert the cassette tape in the cassette holder
The cassette holder when driven in the storage direction by movement
A pair of lifting gears connected to the
Is turned in the direction opposite to the biasing direction of the spring.
And the driving source generates a driving force, and the driving rack
Drive the cassette holder in the storage direction and
In the closing direction of the hopper .

[0007]

According to the present invention, a driving rack provided on a chassis constituting a tape playing mechanism is driven by using a driving force provided in the tape playing mechanism or a driving force of a dedicated motor or the like as a driving source. The drive lever pivotally supported by the drive rack drives the holder in the opening direction by the movement of the holder, and after the holder rotates in the opening direction, the drive lever drives the lifting gear provided on the side surface of the holder and guides the holder to the holder. The removed cassette holder is driven in the removal direction, and the cassette tape can be automatically removed from the holder.

The cassette holder guided by the holder by the movement of the drive rack in the other direction is driven in the storage direction by an elevating gear provided on the side of the holder.
The holder is driven in the storage direction, so that the cassette tape can be automatically stored in the holder and the holder can be rotated in the closing direction. Therefore, since the holder is opened and closed by moving the rack provided on the back of the tape playing mechanism, the thickness of the loading mechanism can be reduced.

Further, since the cassette holder for storing and removing the cassette tape into and from the holder and the elevating gear for driving the cassette holder are provided on the holder side, the present invention can be realized only by attaching the holder to the tape playing mechanism including the chassis. A cassette loading device can be assembled.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A cassette loading device according to one embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an external perspective view of a cassette deck provided with the cassette loading device of the embodiment, and FIG. 2 is a diagram showing the cassette loading device of the embodiment at 90 ° from the mounted state of FIG.
3 is a perspective view of the cassette loading device, FIG. 4 is a plan view of the cassette loading device, FIG. 5 is a rear view of the cassette loading device, and FIG. 6 is a cassette loading device. FIG. 7 is a right side view showing the closed state of the cassette loading device, FIG. 8 is a right side view showing the opened state of the holder of the cassette loading device,
FIG. 9 is a back view of the cassette loading device in an open state,
FIG. 10 is a right side view showing the tape loading state of the cassette loading apparatus, FIG. 11 is a rear view of the tape loading state of the cassette loading apparatus, and FIG. 12 is a right side view showing the holder loading state of the cassette loading apparatus. 13, FIG. 13 and FIG. 14 are a plan view and a sectional view of the friction gear, respectively. FIG. 15 is a right side view showing the open state and the spring-loaded position of the holder of the cassette loading device.

In FIG. 1, reference numeral 1 denotes a tape playing mechanism, which is attached to a front panel 3 attached to the front of a casing 2 of a cassette deck.

In FIG. 2, 90 ° from the mounting state of FIG.
The tape playing mechanism 1 is attached to an upper part of the boombox case 4 by being displaced. FIG. 1, FIG. 2, and FIG.
Numeral 5 denotes a chassis constituting the tape playing mechanism 1. The chassis 5 is provided with a reel motor 6 for driving the tape playing mechanism 1, the cassette loading device of the present invention, and a capstan motor 7 for driving the tape playing mechanism 1. I have. The chassis 5 is attached to the tape playing mechanism 1 by screws 8.

The tape playing mechanism 1 is attached to the casing 2 of the cassette deck or the casing 4 of the boombox by means of mounting holes 1a and screws 9 provided in the tape playing mechanism 1.

Reference numeral 10 denotes an intermediate gear, which is inserted into a shaft 5a formed on the chassis 5 and is driven by the reel motor 6 by a known method.

In FIG. 3, FIG. 13 and FIG.
Is a friction gear large, is mounted to be able a certain amount, rotating the upper part of the friction gear Small 12 rotatably mounted to the shaft portion 5 b formed in the chassis 5. Both ends 13a and 13a 'of the friction spring 13 urged to spread to the L-shaped spring engaging portions 12d and d' around the spring engaging portion 12c formed on the upper portion of the friction gear small 12 always have the large friction gear 11
By pressing the two projections 11a and 11a 'formed on the upper part of the small gear 12, the position in the rotational direction of the large friction gear 11 with respect to the small friction gear 12 is determined, and as shown in FIG. When the large friction gear 11 is driven in the direction of the arrow when stopped, one end of the friction spring 13 is pushed by the convex portion 11a of the large friction gear 11 to bend, and when the driving of the large friction gear 11 is released, FIG. To the position. The same applies when the large friction gear 11 is driven in the direction opposite to the arrow.

Reference numeral 14 denotes a rack, which is provided so as to be movable in the arrow direction along a guide portion 5e formed on the chassis 5, and which has a small friction gear 12 rotated by a large friction gear 11 meshed with the intermediate gear. The gears are configured to mesh with each other and to be driven in the arrow direction.

Reference numeral 15 denotes a leaf spring attached to the chassis 5, which pushes a convex portion 14a provided on the rack 14 when the rack 14 is driven in the direction of arrow B, and moves the rack 14 in the direction of arrow I. It is configured to provide resistance and driving force to balance the driving load of the rack 14.

[0019] 16 is a hook, an arrow Ha about the shaft 5 f provided on a side surface of the chassis 5 - is mounted for rotation in two directions. Reference numeral 29 denotes a known leaf switch provided on the tape playing mechanism 1, and is configured such that the hook 16 pushes the switch lever 30 in the direction of arrow C to open. A kick spring 16A is urged between the hook 16 and the chassis 5 so that the hook 16 rotates in the direction indicated by the arrow D. One end 16a of the hook 16 contacts the cam portion 14b of the rack 14, and
The hook 16 is configured to rotate in the direction indicated by the arrow Hari by moving in the direction B. Further, the cam 16 b of the rack 14 is pressed by the force of the rotation of the hook 16 in the direction of the arrow D by the support of the leaf switch 29, and the leaf spring 15 exerts the force of the rack 14 self-running in the direction of the arrow B. It is configured to cancel by pressing the part 14a. Reference numeral 16b denotes a hook portion formed at the other end of the hook 16, and a projection 17a of the holder 17 mounted so as to be rotatable in a direction indicated by an arrow H around a bearing portion 5g of the chassis 5 by rotation in a direction indicated by an arrow D. To prevent the holder 17 from rotating in the direction of arrow E.

Reference numeral 18 denotes a drive lever provided so as to be rotatable in a direction indicated by an arrow in a direction indicated by an arrow around a shaft 14c provided on the side surface of the rack 14.
The drive lever 18 is rotated in the direction indicated by the arrow H by a kick spring 19 urged between the rack 14 and the spring engaging portion 18a at one end of the drive lever 18 around the rack 4d.
And stops the drive lever 18 from rotating in the direction indicated by the arrow H by contacting the stopper 14e.

[0021] 18b is a shaft portion provided on a side surface of the driving lever 18 engages the hook-shaped hole 17 h provided in the lower part of the holder 17, the arrow i of the rack 14 - movement in the B direction The holder 17 to the bearing 5 of the chassis 5
It is configured to rotate in the direction of arrow Ho about the shaft portion 17c that engages with g.

Reference numeral 20 denotes a holder spring, which is provided for canceling the direction of attachment of the cassette loading device of the present invention to the housing, that is, the rotational force due to the weight of the holder 17 which varies depending on the case of FIG. 1 and FIG. In the mounting state shown in FIG. 1, the shaft portion 17c of the holder 17 is provided at the center, one end of the holder 17 is brought into contact with a spring hook portion 17d, and the other end of the holder 17 is temporarily fixed. Remove from Banekake portion 17e, it is brought into contact with the shaft 5h of the chassis 5 which protrudes from the fan-shaped slot 17 f of the holder 17, biases rotate the holder 17 in the arrow f direction.

When the holder spring 2 is in the mounted state shown in FIG.
0 is provided around the shaft portion 17c of the holder 17 and one end is shown in FIG.
As shown by 5, it is temporarily attached in advance and detached from the spring hooking portion 17 d, is brought into contact with the shaft 5 h of the chassis 5, the other end is brought into contact with the spring hooking portion 17 e, and the holder 17 is moved in the direction The holder 17 is configured to be urged to rotate in the direction to cancel the rotational force due to the weight of the holder 17.

Reference numeral 21 denotes a limit switch, which is provided on the chassis 5 and is disposed below the drive lever 18. When the rack 14 is driven in the direction of arrow A, the limit switch 21 is turned on by the lower portion of the drive lever 18. When the rack 14 is driven in the direction of the arrow B, the rack 14 causes another limit switch (not shown).
Is turned on to stop.

Reference numeral 18c denotes a convex portion formed on the side surface of the drive lever 18. When the rack 14 is driven in the direction of arrow B, a cam portion 17g formed on the lower portion of the holder 17 is pushed to cause the holder 17 to move. by the shaft portion 18b and the key-shaped hole 17 f for, aid operation rotates in an arrow f direction around the shaft portion 17c, as shown in FIG. 6, 18c the rack 14 comes to the end of the arrow b direction holder The upper portion 17h of the cam portion 17 is pushed to lock the rotation of the holder 17 in the direction of arrow E.

Reference numeral 1b denotes a convex portion formed below the tape playing mechanism 1. When the rack 14 is driven in the direction of arrow B, the convex portion 18d of the drive lever 18 enters the lower portion of the convex portion 1b, and the drive lever 18 Are not rotated in the direction indicated by the arrow G against the force of the kick spring 19.

Reference numeral 22 denotes a cassette holder which is guided inside the holder 17 and is slidable in the direction of the arrow line.

[0028] 22a is a rack portion formed on the lower side of the cassette holder 22, and one end of the teeth 23a of the lifting gear B23 which is configured to rotate around the hole 17 i formed on the side surface of the holder 17 It is configured to mesh.

The teeth 23 formed on the other end of the lifting gear B23
b is a hole 17 j formed in the lower part of the side surface of the holder 17.
Is configured to mesh with a tooth 24a at one end of an elevating gear A24 configured to rotate around the center.

A shaft portion 18b of the drive lever 18 is provided in an elongated hole 24b provided on the side opposite to the teeth 24a of the lifting gear A24.
When the rack 14 is driven in the direction of the arrow A, the lifting gear A24 rotates in the direction of the arrow, and the lifting gear B23 meshing with this rotates in the direction of the arrow E to move the cassette holder 22 in the direction of the arrow. It is configured to extrude.

Therefore, when the rack 14 is driven in the direction of arrow B, the cassette holder 22 is driven in the direction of arrow N, and is housed in the concave tape housing portion 22b configured to be housed inside the cassette holder 22. The cassette tape 25 moves along with the cassette holder 22 in the direction of the arrow, and is supplied onto the tape playing mechanism 1 by rotating the holder 17 in the direction of the arrow.

Reference numeral 26 denotes a stabilizer provided on the cassette holder 22 so as to press the cassette tape 25, and a compression spring 27 provided between the cassette holder 22 and the stabilizer when the cassette tape 25 is supplied onto the tape playing mechanism 1. By cassette tape 25
Is configured to be pumped over the tape playing mechanism.

Reference numeral 22c denotes a projection formed on the lower side of the cassette holder 22, and the cassette tape 2 in the state shown in FIG.
After the cassette 5 is supplied into the cassette holder 22, when the holder 17 is manually pushed in the direction of the arrow as shown in FIG. 12, the projection 22c comes into contact with the projection 1c formed on the tape playing mechanism 1 and stops. The lever 18 is configured to protect the lever 18 from excessive force.

[0034] In this case, press down the shaft portion 18b of the key-shaped hole 17 h is driven lever 18 of the holder 17 in the arrow F direction,
The drive lever 18 is rotated in the direction of arrow G to turn off the limit switch 21, the reel motor 6 is rotated, and the tape 25 is automatically supplied to the tape playing mechanism.

The operation of the cassette loading device according to one embodiment of the present invention, constructed as described above, will be described.

The cassette tape 25 is inserted into the cassette holder 22 as shown in FIGS.
Is operated, the reel motor 6 rotates, and the intermediate gear 1
0, the large friction gear 11 and the small friction gear 12 rotate, and the rack 14 is driven in the direction of arrow a.
At this time, the friction spring 13 slightly flexes and the large friction gear 11
Friction gear small amount 1 until the stopper hits
The rack 14 is driven after the large friction gear 11 rotates with respect to 2 to absorb the mechanical load at the time of startup.

Next, the hook 16 is connected to the cam portion 1 of the rack 14.
By 4b, it is rotated in the direction of arrow C. The driving load at this time is balanced by the force of the rack 14 in the direction of arrow A generated when the leaf spring 15 descends on the rack projection 14a.

Next, the engagement of the hook 16 with the projection 17a of the holder 17 is released by the rotation of the hook 16 in the direction of arrow C.
Holder 17 ends the rotation in the arrow E direction in a state of FIG. 8 rotated in the arrow E direction around the shaft portion 17c by driving the key-shaped hole 17 h by the shaft portion 18b of the drive lever 18.

Further, when the rack 14 is driven in the direction of arrow A, as shown in FIG. 10, the shaft portion 18b of the drive lever 18 drives the elongated hole 24b of the lift gear A24, and drives the lift lever B23 which meshes with this. Thus, the cassette holder 22 is driven in the direction indicated by the arrow. When the rack 14 further advances to the end in the direction of arrow A, the drive lever 18 is moved to the limit switch 21.
Is turned on, and the rotation of the reel motor 6 stops.

Next, in this state, the cassette tape 25 is supplied into the cassette holder 22, and the cassette holder 22 is pushed in the direction of the arrow as shown in FIG.
Is rotated in the direction of arrow G, the limit switch 21 is turned off, the reel motor 6 rotates, and the rack 14 is driven in the direction of arrow B.

When the tape 25 is pushed in the direction indicated by the arrow C in the state shown in FIG.
Is driven in the direction opposite to the arrow e, and the elevating gear A24 meshing with this rotates in the direction opposite to the arrow r, and the elongated hole 24b drives the shaft portion 18b of the drive lever 18 in the direction shown by the arrow. 18 rotates in the direction indicated by the arrow G, the limit switch 21 is turned off, and the reel motor
Rotates, and the rack 14 is driven in the direction of arrow B.

The operation button 2 shown in FIGS.
As described above, the reel motor 6 is rotated by the operation of 8, and the rack 14 can be driven in the direction of arrow B.

By any of the above operations, the rack 1
4 is driven in the direction of arrow B, the drive lever 18 rotates the elevating gear A24 in the direction opposite to the direction of the arrow, and the elevating gear B23 meshing therewith is rotated in the direction opposite to the direction of the arrow e to rotate the arrow N of the cassette holder 22. The tape 25 is stored in the holder 17 by the movement in the direction.

[0044] Furthermore, the rack 14 is driven in the arrow B direction, the drive lever 18 of the shaft portion 18b and the key-shaped hole 17 h and the convex portion 18c formed on the side surface of the driving lever 18 and the holder 17 of the holder 17 The holder 17 rotates in the direction of the arrow by the cam portion 17g and the cam upper portion 17h,
In the state shown in FIG. 6, the engagement of the projection 18c with the upper portion 17h of the cam portion, the rotation of the hook 16 in the direction of arrow D by the kick spring 16A, and the engagement of the holder 17 with the projection 17a of the holder 17 cause the holder 17 to move in the direction of arrow E. Rotation is blocked,
The cassette tape 25 is supplied on the tape playing mechanism 1.

When the rack 14 is further driven in the direction of arrow B, another limit switch (not shown) is turned on,
The movement of the rack 14 is stopped, and the performance of the cassette tape 25 can be started.

With the above configuration, the cassette loading device of the present embodiment has the following effects.

(1) A pair of elevating gears 23 and 24 supported by the holder 17 to drive the cassette holder 22
And the holder 17 are driven by the drive lever 18 to move the rack 1
4 moves the holder 17 in the opening direction and removes the cassette tape 25 from the holder 17 by moving in one direction, and stores the cassette tape 25 in the holder 17 and 17 can be rotated in the closing direction, and a small and inexpensive cassette loading device can be provided because a loading substrate dedicated to loading is not required.

(2) The cassette tape 25 is inserted into the cassette holder 22 which is guided and driven by the holder 17 pivotally supported so as to be able to open and close with respect to the chassis 5, and the cassette tape 22 is stored and taken out of the holder 17. Due to the configuration to be performed, the holder 17 is slightly inclined and the cassette tape 25 is slid into the holder 17 by gravity, and compared with the conventional method in which the cassette tape 25 is pushed out by the push pin.
Since the cassette tape 25 moves together with the cassette holder 22, the cassette tape 25 can move inside the holder 17 without relying on the gravity of the cassette tape 25, so that the angle of the holder 17 can be arbitrarily selected.

(3) A spring force is applied to the drive lever 18 which is pivotally supported by the rack 14 so as to be rotatable by a fixed amount, so that the rack 14 rotates the holder 17 in the opening direction. When the limit switch 21 is driven by the drive lever 18 when driven in the moving direction, and the holder 17 is manually driven in the closing direction,
The drive lever 18 engaged with the holder 17 is rotated in the direction opposite to the biasing direction of the spring, the limit switch 21 operates to drive the rack 14, and the cassette holder 22
The cassette tape 25 can be loaded only by pressing the holder 17 manually by a certain amount without operating the operation buttons, because the drive in the storage direction of the cassette 17 and the drive in the closing direction of the holder 17 are performed. it can.

(4) When the cassette tape 25 taken out by the cassette holder 22 is manually driven in the storage direction, the pair of lifting gears 23 and 24 connected to the cassette holder 22 are engaged with the drive lever 18 engaged therewith.
Is rotated in the direction opposite to the biasing direction of the spring to operate the detection switch, and the rack 14 is driven to drive the cassette holder 22 in the storage direction and the holder 17 in the closing direction. Thus, the cassette tape 25 can be loaded only by manually pushing the cassette tape 25 by a certain amount without operating the operation button 28.

(5) A cam formed on the upper surface of the rack 14 with a hook 16 which is pivotally supported by the holder 17 so as to be able to rotate by a fixed amount, and which urges a spring force so as to always engage with a convex portion formed on the holder 17. The cassette tape 25 during playing is stably placed on the tape playing mechanism 1 by being driven by the unit to engage and disengage the projection 16 formed on the holder 17 with the hook 16 and to drive the leaf switch 21. Can be held. When the cassette tape 25 is mounted on or removed from the tape playing mechanism 1, the leaf switch 21 is driven.
It can be smoothly attached and detached without applying excessive force to it.

(6) When the drive lever 18 pivotally supported by the rack 14 drives the keyhole-shaped drive unit provided on the holder 17, the holder 17 is driven in the opening direction,
When the holder 17 is driven in the closing direction when the drive lever 18 drives the cam portion provided on the holder 7, a position far from the rotation shaft of the holder 17 can be driven when the holder 17 is closed. Can be pressed against the tape playing mechanism 1 with a strong force, so that the cassette tape 25 can be stably supplied onto the tape playing mechanism 1.

(7) A convex stopper is formed at the lower portion of the cassette holder 22. When the holder 17 is opened and is pressed by a predetermined amount by an external force, it comes into contact with the convex stopper formed on the upper surface of the substrate. In addition, it is possible to prevent the holder from rotating more than a certain amount, thereby protecting the holder driving unit.

(8) The rack 14 is driven by the power of the reel motor 6 provided in the cassette tape playing mechanism 1 to open and close the holder 17 and to store and remove the cassette tape 25 in and from the holder 17. In addition, a dedicated motor for loading is not required, and the motor can be provided at low cost.

(9) A structure in which a spring force is applied to a cam portion formed on the rack 14 to cancel the self-propelled movement of the rack 14 generated by the rotation of the hook 16 by the spring force of the leaf switch 21. Hook 16 is rack 1
4 to cancel the force of pushing the cam portion 4 to move the rack 14 in the direction of arrow B by the force of the leaf spring 15 pushing the convex portion of the rack 14 and moving it in the direction of arrow A, so that the load for driving the rack 14 is well balanced. can do.

(10) The large and small friction gears 11 and 12 provided between the drive source and the rack 14 to temporarily absorb the mechanical load generated when the rotational force of the drive source is switched to the cassette loading force. A spring force is applied between the large and small friction gears 11 and 12 so as to return to idle, so that the mechanical load when the power of the reel motor 6 driving the tape playing mechanism 1 is switched to the loading force is temporarily absorbed. Then, the switching can be performed smoothly.

(11) A holder spring 20 is provided on the rotating shaft portion of the holder 17, and both ends are temporarily attached to the spring hook portion of the holder, and one end is removed from the temporary attachment portion after the assembly of the holder 17 to the chassis 5 is completed. The holder 17 is rotated in the closing direction when the holder 17 is brought into contact with the chassis 5, and the holder 17 is rotated in the opening direction when the other end of the holder spring 20 is removed from the provisional portion and applied to the chassis 5. In addition, the weight of the holder 17, the cassette holder 22, the cassette tape 25, and the like depending on the mounting direction of the cassette loading device of the present embodiment can be canceled, and the imbalance of the mechanical load can be reduced.

[0058]

According to the present invention, the cassette loading device comprises:
Gears driven by the drive source on the chassis that constitutes the tape playing mechanism, a movably supported drive rack and a holder that is pivotally supported to open and close the chassis, and a holder that is supported by the drive rack and opened and closed in the opening and closing directions It has a drive lever for driving, and a cassette holder that is guided by the holder and stores and removes the cassette tape in and from the holder.The drive lever is a pair of lifting gear and a holder that are supported by the holder to drive the cassette holder. When the drive rack moves in one direction, the holder rotates in the opening direction and the cassette tape is removed from the holder, and when the drive rack moves in the other direction, the cassette tape is stored and held in the holder. Can be rotated in the closing direction, and a dedicated loading substrate is required. It is possible to provide an inexpensive cassette loading device compact because it does not.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a cassette deck provided with a cassette loading device according to an embodiment of the present invention.

FIG. 2 is an external perspective view of the cassette loading device according to the embodiment of the present invention, which is displaced by 90 ° from the mounted state in FIG.

FIG. 3 is a perspective view of a cassette loading device according to the embodiment of the present invention.

FIG. 4 is a plan view of the cassette loading device according to the embodiment of the present invention.

FIG. 5 is a rear view of the cassette loading device according to the embodiment of the present invention.

FIG. 6 is a right side view showing a closed state of a holder of the cassette loading device in the embodiment of the present invention.

FIG. 7 is a rear view of the cassette loading device according to the embodiment of the present invention in a closed state of the holder;

FIG. 8 is a right side view showing an open state of a holder of the cassette loading device in the embodiment of the present invention.

FIG. 9 is a rear view of the cassette loading device in an open state according to the embodiment of the present invention.

FIG. 10 is a right side view showing an up state of a cassette tape of the cassette loading device according to the embodiment of the present invention.

FIG. 11 is a rear view of the cassette loading device according to the embodiment of the present invention in a tape up state;

FIG. 12 is a right side view showing a pressed state of a holder of the cassette loading device in the embodiment of the present invention.

FIG. 13 is a plan view and a sectional view of a friction gear portion of the cassette loading device according to the embodiment of the present invention.

FIG. 14 is a plan view of a friction gear of the cassette loading device according to the embodiment of the present invention.

FIG. 15 is a right side view showing an open state of a holder of the cassette loading device and a spring application position in the embodiment of the present invention.

FIG. 16 is an external perspective view of a conventional cassette tape deck.

[Explanation of symbols]

 Reference Signs List 1 tape playing mechanism 2 cassette deck casing 3 front panel 4 boombox casing 5 chassis 6 reel motor 7 capstan motor 8,9 screw 10 intermediate gear 11 large friction gear 12 small friction gear 13 friction spring 14 rack 15 leaf spring Reference Signs List 16 hook 17 holder 18 drive lever 19 kick spring 20 holder spring 21 limit switch 22 cassette holder 23 elevating gear B 24 elevating gear A 25 cassette tape 26 stabilizer 27 compression spring 28 operation button 29 leaf switch 30 switch lever

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-228451 (JP, A) JP-A-6-52610 (JP, A) JP-A-5-41005 (JP, A) 107043 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) G11B 15/675 101

Claims (8)

(57) [Claims] To 1. A chassis constituting the tape playing mechanism, a gear driven by a driving source, a driving rack which is movably supported by the chassis, and axially supported by a holder so that it can open and close with respect to said chassis, A drive lever that is pivotally supported by the drive rack and drives the holder in the opening and closing direction; and a cassette holder that is guided by the holder and stores and removes a cassette tape in and from the holder, and drives the cassette holder. The drive lever drives the pair of elevating gears and the holder pivotally supported by the holder, and the drive rack moves in one direction to rotate the holder in the opening direction and take out the cassette tape from the holder. Moving the drive rack in the other direction to accommodate the cassette tape in the holder; It is configured to rotate the holder in the closing direction, and a pair of elevating gears connected to the cassette holder when the cassette tape in the cassette holder at the unloading position is manually driven in the storage direction is connected to this. The drive lever to be engaged is rotated in the direction opposite to the biasing direction of the spring to operate the detection switch, the drive source generates a drive force, the drive rack is driven to drive the cassette holder in the storage direction, and the holder is driven. A cassette loading device configured to drive the cassette in the closing direction. 2. A drive lever, which is rotatably supported by a drive rack so as to be rotatable by a predetermined amount, always applies a spring force to rotate in a fixed direction, and the drive rack rotates the holder in an opening direction. A limit switch when driven is provided to be operated by the drive lever, and when the holder is manually driven in the closing direction, the drive lever engaged with the holder is rotated in a direction opposite to a biasing direction of a spring. 2. The cassette loading device according to claim 1, wherein the limit switch is operated to drive the drive rack to drive the cassette holder in a storage direction and to drive the holder in a closing direction. . 3. A hook, which is rotatably supported by the chassis so as to be rotatable by a predetermined amount and is always engaged with a convex portion formed on the holder, is driven by a cam portion formed on the upper surface of the rack so as to apply a spring force. The hook and the hook formed on the holder are engaged with and disengaged from the hook;
2. The cassette loading device according to claim 1, wherein the switch lever is driven to open and close the leaf switch. Axis 4. journaled to the drive rack and the drive lever
Part is provided a key-shaped hole for engaging said drive lever is the holder through a key-shaped hole formed in the holder and Ru is driven in one direction is driven in the opening direction, the drive lever opposite direction The cassette loading device according to claim 1, wherein the holder is configured to be driven in a closing direction when driven. 5. A cassette holder and a tape playing mechanism each having a stopper portion opposed to each other. When the holder is opened and the holder is pushed in a closing direction by an external force, the cassette holder is formed. The stopper portion contacts the stopper formed on the tape playing mechanism to prevent the holder portion from coming into contact with the tape playing mechanism, and when the holder is driven in the closing direction by the loading operation, the cassette holder is moved in the storage direction. 2. The cassette loading device according to claim 1, wherein the stopper portions are not brought into contact with each other by being driven. 6. The system according to claim 1, wherein the rack is driven by the force of a reel motor provided in the cassette tape playing mechanism to open and close the holder and to store and remove the cassette tape in and from the holder.
The cassette loading device as described in the above. 7. A large friction gear and a small friction gear provided between the drive source and the rack so as to absorb a mechanical load generated when the rotational force of the drive source is switched to the cassette loading force, and return by rotating by a certain amount. 2. The cassette loading device according to claim 1, wherein a spring force is applied between the large friction gear and the small friction gear to perform the operation. 8. A holder spring is provided on a rotating shaft portion of the holder, and both ends are temporarily attached to a spring hook portion of the holder, and one end of the holder is detached from the temporary attachment portion after assembly of the holder to the chassis is completed. , The holder is rotated in the closing direction, and the other end of the holder spring is detached from the temporary connection portion and is applied to the chassis, whereby the holder is rotated in the opening direction. The cassette loading device according to claim 1, wherein