JP2602436Y2 - Cassette insertion mechanism - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette insertion mechanism for moving a cassette inserted into a cassette deck from an insertion position to a predetermined position.

[0002]

2. Description of the Related Art A conventional cassette insertion mechanism will be described with reference to the drawings. FIG. 6 shows the deck case 1 of the cassette deck as viewed from the side. The cassette 20 inserted through an opening (not shown) at the front of the cassette deck is placed on the elevator 4 in the deck case 1. Elevator 4
Has a projection 5 projecting from the side surface thereof, and the projection 5 projects outside the side wall 2 through an L-shaped elongated hole 3 provided in the deck case 1. The deck case 1 is provided with a lever 36 rotatable about a point 35. A long hole 39 is formed in the lever 36, and the long hole 3
Reference numeral 9 is engaged with the projection 5 of the elevator 4 which projects from the deck case 1 to the outside. The lever 36 is connected to a motor 38 via a reduction gear group 37.

When the detection mechanism (not shown) detects that the cassette 20 has been placed on the elevator 4, the motor 38 rotates and the lever 36 moves from the state shown in FIG. , Rotate counterclockwise in the figure.
When the lever 36 rotates, the protrusion 5 of the elevator 4 on which the cassette 20 is placed is moved toward the back of the deck case 1 along the horizontal portion of the L-shaped elongated hole 3. When the lever 36 continues to rotate, the projection 5 collides with the vertical portion of the L-shaped elongated hole 3 as shown in FIG.
It descends along the vertical part of the L-shaped long hole 3. And
When the cassette 20 placed on the elevator 4 is positioned at a predetermined position by a positioning pin (not shown) provided on the deck case 1, the motor 38 stops.

When taking out the cassette 20 from the cassette deck, the operation reverse to that described above is performed. Lever 3
The clockwise rotation of 6 raises the elevator 4 and thereafter moves to a position close to the opening of the cassette deck, and finally exposes the cassette 20 partially through the opening.

[0005]

In the conventional example described above, the long hole 39 of the lever 36 must be engaged with the projection 5 during the entire travel of the elevator as shown in FIG. Therefore, the lever 36 and its long hole 39 need to be long. Therefore, when the lever 36 is at the vertical position, the thickness of the entire cassette deck becomes large.

In the prior art, the motor 38 and the lever 36 are connected via a reduction gear group 37. As described above, since the gears are frequently used, a space for the gears is required, and there is a problem that the cost is high and the parts management is difficult. An object of the present invention is to reduce the thickness of a cassette deck by improving a lever for moving a projection of an elevator in a cassette insertion mechanism of the cassette deck.

Another object of the present invention is to reduce the number of components of the cassette deck by improving the connection structure between the lever for moving the projection of the elevator and the drive source in the cassette insertion mechanism of the cassette deck. It is.

[0008]

In order to achieve the above object, as a first aspect of the present invention, a deck case and a cassette having an L-shaped long hole formed in a side wall are housed and transported to a predetermined position. An elevator housed in the deck case, comprising: a projection provided on a side surface of the elevator and engaging with the L-shaped elongated hole, wherein a cassette inserted into the deck case is mounted on the elevator In the cassette insertion mechanism in which the cassette is moved to a predetermined position by moving the projection through the long hole of the L-shape, the projection is disposed on the back side of the deck case.
A drive source and, before Symbol interpolation exhaust Direction and movement allowed in the same direction of the cassette
And the drive source is attached to the deck case.
A drive member that reciprocates by movement, and is rotatably mounted on a side wall of the deck case, and is rotatable from a rotation center thereof.
Lever having a first lever and a third lever extending sideward
Part, one end of which is one end of the driving member, and the other end of which is the third
Are rotatably connected to the levers, respectively.
A fourth lever for rotating the lever portion by the backward movement
And one end is rotatably connected to the first lever, and the other
End is rotatably connected with the projection of the elevator, the
A second lever is provided for moving the elevator by moving the protrusion along the long hole of the L-shape by rotating the lever portion .

As a second aspect of the present invention, there is provided a deck case having an L-shaped long hole formed in a side wall, and an elevator for accommodating a cassette and transporting the cassette to a predetermined position, which is accommodated in the deck case. An elevator, comprising a projection provided on a side surface of the elevator and engaging with the L-shaped elongated hole;
In a cassette insertion mechanism in which a cassette inserted into the deck case is placed on the elevator and the projection moves through the long hole of the L-shape to move the cassette to a predetermined position, a side wall of the deck case And a first lever having an arm extending outward from the center of rotation of the first lever, one end of the first lever being rotatably connected to the arm of the first lever, and the other end rotating with the projection of the elevator. And a second lever for moving the elevator by moving the protrusion along the long hole of the L-shape by rotationally driving the first lever, and disposed at a rear side of the deck case. And a drive source for winding and sending out the thread-like member and the first lever.
And a thread-like drive transmitting member for transmitting the driving force from the drive source, and a force applied to the first lever in a direction opposite to a force applied when the drive transmission member is being wound by the drive source. Biasing means for applying force.

[0010]

By providing the second lever between the first lever and the projection, the projection can be moved along the L-shaped elongated hole without providing the first lever with the elongated hole. become able to. Therefore, the length of the first lever for moving the protrusion is reduced, and the thickness of the cassette deck can be reduced.

In a first aspect of the present invention,
The driving force for the first lever is transmitted by a driving member and a lever for converting the rotational driving of the driving source into a reciprocating motion in the same direction as the insertion and ejection direction of the cassette.
In the aspect of the invention, the driving force for the first lever is transmitted by the thread-like drive transmission member that is wound and fed by the rotation of the drive source, so that a large number of gears are required as in the related art. Disappears. As a result, the number of installed components near the elevator is reduced, and the cassette deck is reduced in size, cost is reduced, and component management is facilitated.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In each of the drawings, components having the same function are denoted by the same reference numerals, and redundant description is omitted.

(Embodiment 1) FIG. 1 is a perspective view showing a first embodiment of the present invention, FIG. 2 is a side view, and FIG. 3 is a plan view taken along line AA of FIG. In the figure, only a part of the deck case necessary for the description is shown, and other parts are not shown. An L-shaped elongated hole 3 is provided in the side wall 2 of the deck case 1. Cassette 2
A projection 5 is provided on a side surface of the elevator 4 on which the 0 is mounted, and the projection 5 projects outside the side wall 2 through the L-shaped elongated hole 3. A first lever 6 is attached to the side wall 2 of the deck case 1 so as to be rotatable about a point 7. Further, the third lever 10 is formed integrally with the first lever 6. A second lever 8 is rotatably connected between the first lever 6 and the projection 5 of the elevator 4.

A motor 9 serving as a drive source of the elevator 4 is attached to the rear of the deck case 1. The drive member 11 and the fourth lever 12 connect the motor 9 and the third lever 10. The driving member 11 is provided with two horizontal slots 13, 14.
Engage with two support pins 15 and 16 provided on the side wall 2 of the deck case 1. Thereby, the driving member 11 can be moved in the horizontal direction.

As shown in detail in FIG. 3, a long hole 17 is formed at one end of the driving member 11 in a direction perpendicular to the moving direction. A disc-shaped cam 18 is attached to the motor 9, and a projection 19 is provided at an eccentric position of the cam 18. This projection 19 engages with the long hole 17 of the driving member 11. With this configuration, when the motor 9 rotates, the driving member reciprocates in the horizontal direction.

A fourth lever 12 is connected between the other end of the driving member 11 and the third lever 10. Fourth lever 12
Is rotatably connected to both the third lever 10 and the driving member 11. According to the cassette insertion mechanism configured as described above, when the cassette 20 is inserted from an opening (not shown) at the front of the cassette deck, the cassette 20 moves on the elevator 4 in the deck case 1 and is inserted to the innermost position. Is detected by a detection mechanism (not shown),
The motor 9 rotates. From the state shown in FIG.
Rotates, the driving member 11 is engaged with the elongated hole 17 of the driving member 11 so that the driving member 11
Move backward.

This movement is transmitted to the first lever 6 by the fourth lever 12 and the third lever 10, and the first lever 6 is turned counterclockwise from the state shown in FIG. Rotate in the direction. The rotation of the first lever 6 is transmitted to the projection 5 of the elevator 4 via the second lever 8 and the projection 5
Move the horizontal portion of the L-shaped long hole 3 and move the elevator 4
Is moved toward the back of the deck case 1.

When the first lever 6 continues to rotate,
As shown in FIG. 4B, the protrusion 5 collides with the vertical portion of the L-shaped elongated hole 3 and descends along the vertical portion of the L-shaped elongated hole 3. When the cassette 20 placed on the elevator 4 is positioned at a predetermined position by a positioning pin (not shown) provided on the deck case 1, the motor 9 is stopped by a mechanism (not shown).

When the reproduction of the cassette 20 is completed and the cassette 20 is taken out of the cassette deck, the operation reverse to the above is performed. The clockwise rotation of the first lever 6 raises the elevator 4 and then moves in the horizontal direction,
Move to a position near the cassette deck opening. Finally, the cassette 20 is partially exposed to the outside from the opening of the cassette deck by a known mechanism (not shown).

In the embodiment described above, since the lever for moving the projection 5 of the elevator 4 is formed by the first and second levers 6 and 8, it is clear from the comparison between FIG. 4 and FIG. In addition, the height dimension is reduced. Therefore, the thickness of the cassette deck can be reduced. The connection between the motor 9 and the first lever 6 is made by a cam 18, a driving member 11, a fourth lever 12,
Since the lever 10 is used, the structure can be made simple and space-saving.

(Embodiment 2) FIG. 5 shows a side view of a second embodiment in which the driving force is transmitted by a thread-like member. In this example, a gear 21 is formed on a part of the first lever 6. A fifth lever 23 having a gear 22 that meshes with the gear 21 is rotatably attached to the side wall 2 of the deck case 1. The fifth lever 23 is
A roller 24 is provided at the tip, and is urged clockwise by a torsion spring 25.

One end of a thread 27 is fixed to one point 26 of the side wall 2. The thread 27 is connected to the roller 24 of the fifth lever 23,
And a plurality of rollers 29, 30, 31 provided on the side wall 2
Through the reel 32. This reel 32
Is connected to the motor 9 via reduction gears 33 and 34. When the cassette 20 is not inserted in the cassette deck, the torsion spring 25 is in a state of storing the force for urging the fifth lever 23 in the clockwise direction with the thread 27 wound on the reel 32. .

When the motor 9 rotates by the insertion of the cassette 20, the reel 32 rotates through the reduction gears 33 and 34 to send out the thread 27. The fifth lever 23 rotates clockwise by the force accumulated in the torsion spring 25 when the thread 27 is sent out, and rotates the first lever 6 counterclockwise. Thereafter, the apparatus of this embodiment performs the same operation as that of the first embodiment, and positions the cassette 20 at a predetermined position.

When taking out the cassette 20 from the cassette deck, the motor 9 rotates in the reverse direction to wind up the yarn. Thereby, the fifth lever 23 rotates counterclockwise,
The first lever 6 is rotated clockwise. This allows
The cassette 20 is moved to the outside as in the first embodiment.

[0025]

According to the present invention, the shape of the cassette insertion mechanism can be reduced in size, and the number of components of the transmission mechanism can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a plan view taken along line AA of FIG. 2;

FIG. 4 is a view for explaining the operation of FIG. 1;

FIG. 5 is a side view of a second embodiment of the present invention.

FIG. 6 is a side view of a conventional cassette insertion mechanism.

FIG. 7 is a view for explaining the operation of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Deck case 2 ... Side wall 3 ... L-shaped long hole 4 ... Elevator 5 ... Projection 6 ... 1st lever 8 ... 2nd lever 9 ... Motor 10 ... 3rd lever 11 ... Driving member 12 ... 4th Lever 13, 14 ... Long hole 15, 16 ... Pin 17 ... Long hole 18 ... Cam 19 ... Protrusion 20 ... Cassette 21,22 ... Gear 23 ... Fifth lever 24,29,30,31 ... Roller 25 ... Torsion spring 27 ... thread 32 ... reel 33, 34 ... reduction gear 36 ... lever 37 ... reduction gear 38 ... motor 39 ... long hole

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-61-16065 (JP, A) JP-A-1-292663 (JP, A) JP-A-62-161335 (JP, U)

Claims (3)

(57) [Scope of request for utility model registration] An elevator for accommodating a deck case having a L-shaped long hole formed in a side wall and a cassette and carrying the cassette to a predetermined position, wherein the elevator is housed in the deck case, and a side surface of the elevator The cassette inserted into the deck case is placed on the elevator, and the projection moves through the L-shaped slot. In the cassette insertion mechanism for moving the cassette to a predetermined position, a drive source arranged on the back side of the deck case, the drive source attached to the deck case movably in the same direction as the cassette insertion / ejection direction, A driving member that reciprocates by driving a source, a first lever and a third lever that are rotatably attached to the side wall of the deck case and extend outward from the center of rotation. A fourth lever, one end of which is rotatably connected to one end of the driving member and the other end of which is rotatably connected to the third lever, wherein the lever member is rotated by reciprocating motion of the driving member. A lever, one end of which is rotatably connected to the first lever, the other end of which is rotatably connected to the projection of the elevator, and the rotation of which drives the projection along the L-shaped elongated hole. And a second lever for moving the elevator by moving the elevator. 2. An elevator for storing a cassette having a L-shaped long hole formed in a side wall thereof and a cassette for carrying the cassette to a predetermined position, wherein the elevator is housed in the deck case. The cassette inserted into the deck case is placed on the elevator, and the projection moves through the L-shaped slot. A cassette insertion mechanism for moving the cassette to a predetermined position; a first lever rotatably attached to a side wall of the deck case and having an arm extending outward from a center of rotation; It is rotatably connected to the arm,
A second lever for rotatably connecting the other end to the elevator protrusion, moving the protrusion along the L-shaped slot by rotating the first lever, and moving the elevator; A drive source disposed on the back side of the deck case for winding and feeding the thread-like member; and transmitting a driving force from the drive source to the first lever.
A thread-like drive transmission member that reaches, and a biasing unit that applies a force to the first lever in a direction opposite to a force applied when the drive transmission member is being wound by the drive source. A cassette insertion mechanism characterized in that: 3. A gear having a gear formed on the first lever, and a gear meshing with the gear, the gear being rotatably attached to a side wall of the deck case, and one end of the drive transmission member being connected to the gear. A lever that applies a force to the fifth lever in a direction opposite to a rotation direction when the fifth lever is pulled by the drive transmission member, wherein the drive transmission member includes a fifth lever. 3. The cassette insertion mechanism according to claim 2, wherein the first lever is rotationally driven via the first lever.