JPH0636423A - Horizontal loading mechanism for tape cassette - Google Patents

Abstract

PURPOSE:To simplify the constitution of the loading mechanism of the tape cassette. CONSTITUTION:A mechadeck 4 and a tape cassette carrying tray 5 are attached to a chassis 3, a tape cassette 6 is mounted on the tray 5, the tray 5 is slided in a horizontal direction and after the tape cassette 6 is moved toward the upper part of the mechadeck 4, the mechadeck 4 is rotated toward the tape cassette 6. Thus, at the horizontal loading mechanism 2 of the tape cassette attaching the tape cassette 6 to the mechadeck 4, the floating of the tape cassette 6 is prevented by a cassette restraining member 7 arranged on upper part of the tape cassette 6 attached to the mechadeck 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal loading mechanism for a tape cassette in which the tape cassette is mounted on the mechanical deck by rotating the mechanical deck toward the tray after the tape cassette is conveyed horizontally by the tray. It is about.

[0002]

2. Description of the Related Art Conventionally, as a tape cassette loading mechanism, a cassette receiving tray is provided with a cassette receiver, and the tray is horizontally conveyed to a predetermined position with the tape cassette placed on the cassette receiving tray. It is widely used that the cassette receiver is vertically lowered and the tape cassette mounted on the cassette receiver is mounted on a mechanical deck.

[0003]

By the way, the above-mentioned conventional loading mechanism has a structure in which the tray is moved in the horizontal direction and then the cassette receiver provided in the tray is moved in the vertical direction as described above. There were the following problems.

(1) The structure of the tray becomes complicated.

(2) The size of the tray in the width direction is required, and it is difficult to manufacture a so-called double loading set in a mini component system or the like.

(3) A mechanism for moving the tray receiver in the vertical direction is required, which complicates the structure of the loading mechanism.

(4) In conjunction with the vertical movement of the cassette receiver,
A cassette holding member (lever) that moves up and down must be provided, and the cassette holding member must prevent the tape cassette mounted on the mechanical deck from rising, which complicates the structure of the cassette holding member.

The present invention has been made for the purpose of solving the above conventional problems.

[0009]

In the horizontal loading mechanism of the present invention, a mechanical deck is attached to a chassis, a tray for carrying a tape cassette is mounted, the tape cassette is placed on the tray, and the tray is slid. The tape cassette is mounted on the mechanical deck by moving the tape cassette above the mechanical deck and rotating the mechanical deck toward the tape cassette. A cassette restraining member is provided on the upper end of the chassis.

[0010]

When the tape cassette is conveyed to the top of the mechanical deck by the tray, the mechanical deck rises, the tape cassette is mounted on the mechanical deck, and the tape cassette is fixed by the cassette holding member provided at the upper end of the chassis. Its upper surface is suppressed and it is prevented from rising from the mechanical deck.

[0011]

The present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a so-called W mechanical tape recorder in which two horizontal loading mechanisms 2 of the present invention are mounted in parallel. The horizontal loading mechanism 2 is a mechanical deck mounted on a chassis 3 as shown in FIG. 4 and a tape cassette transport tray 5 are attached, the tape cassette 6 is placed on the tray 5, and the tray 5 is slid,
As shown in FIG. 4, by moving the tape cassette 6 above the mechanical deck 4 and rotating the mechanical deck 4 toward the tape cassette 6, the tape cassette 6 is mounted on the mechanical deck 4 and the mechanical deck 4 is moved. The upper surface of the tape cassette 6 is pressed by a cassette pressing member 7 arranged above the tape cassette 4 to prevent the tape cassette 6 from rising.

The cassette holding member 7 is formed by bending a leaf spring into a substantially V shape as shown in FIG. 5, and has a pair of left and right side walls 3a standing on the chassis 3.
Notches 8a, 8b on both sides of the upper plate 8 mounted above the mechanical deck 4 in a state of straddling 3b.
It is attached with the screw 8c in the state of being inserted into
Both sides of the upper surface of the tape cassette 6 are held down.

The upper plate 8 is made of a metal plate and has a rectangular shape. One end portion in the lengthwise direction is fastened to the upper end of the one side wall 3a with screws 9 ... …
By being fixed to the upper end of the other side wall 3b at 9, it is provided over the upper ends of the pair of side walls 3a, 3b so that the distance between the pair of side walls 3a, 3b does not widen or narrow. I have to.

Further, tray restraining members 10, 10 projecting downward are formed at both ends of the upper plate 8 by press molding (embossing), and the upper surface of the tray 5 is formed by these tray restraining members 10, 10. The tray 5 is held down to prevent the tray 5 from rising.

A second upper plate 11 formed in substantially the same manner as the upper plate 8 is attached to the upper ends of the side walls 3a and 3b in parallel with the upper plate 8 and is shown in FIG. As described above, the upper surface of the tray 5 is restrained by the tray restraining members 12 and 12 provided at both ends of the second upper plate 11 and the second upper plate 11 is restrained.
By abutting the stopper abutting portion 14 provided on the upper surface of the tray 5 against the screw-made stopper 13 screwed in the tray 5, the tray 5 is prevented from being pulled out more than necessary.

Further, as shown in FIG. 7, the tray 5 is made of plastic or the like in a rectangular shape, and a cassette mounting portion 15 for mounting the tape cassette 6 is provided on one end side thereof.

The side walls 3a and 3b of the chassis 3 are
16 is placed on the guide projections 16 ... 16 formed by bending a part of the tape inward, and the tray drive mechanism 22 described later slides the tape cassette 6 in the horizontal direction to move the tape cassette 6 above the mechanical deck 4. It is designed to be transported.

Next, the structure of the mechanical deck 4 will be described.

As shown in FIG. 2, the mechanical deck 4 is provided with a head block 17 on one end side, and the other end side is erected on the chassis 3 via an arm 18 so as to stand upright on the chassis 3.
It is pivotally supported at the upper ends of 9, 19 by pivot portions 20, 20.

The mechanical deck rotation operation mechanism 21 allows the mechanical deck 4 to be rotated downward from a state of being inclined at a predetermined angle to a substantially horizontal state.

Next, the tray transport mechanism 22 will be described.

As shown in FIG. 10, the tray drive mechanism 22 includes a rack 23 provided on the tray 5, a pinion 24 that meshes with the rack 23, and a drive gear 25 that constantly meshes with the pinion 24. A motor 28 for rotating the drive gear 25 via a pulley 26 and a belt 27 is provided.

Then, as shown in FIG. 1, the tip portion of the tray 5 is projected from the cabinet 29 of the tape recorder 1, and the tape cassette 6 is placed on the cassette placing portion 15 provided at the tip portion. When the motor 28 is rotated in one direction, the drive gear 25, the pinion 24 and the rack 2 are
3, the tray 5 slides in the direction of arrow A in FIG. 10, the tray 5 is drawn into the cabinet 29, and when the tape cassette 6 comes on the mechanical deck 4, the switching mechanism 31 described below operates and the tray 5 Motor 2 of drive mechanism 22
The mechanical deck rotation operation mechanism 21 is operated by 8 to rotate the mechanical deck 4 in the horizontal direction.

As shown in FIG. 10, the switching mechanism 31 has the pinion 24 rotatably attached thereto, and is moved in one direction when the tray 5 is pulled into the cabinet 29 and slid to a predetermined position. A pivot lever (pivot lever) 32 that pivotally pivots to disengage the pinion 24 from the rack 23 of the tray 5, and a pinion 24 that meshes with the pinion 24 when the pivot lever 32 pivots in one direction. Further, the cam drive gear 33 for rotating the cam 57 of the mechanical deck rotation operation mechanism 21 described later is provided.

The rotating lever 32 is rotatably attached to the shaft 34 of the drive gear 25, and the drive gear 2
The rotational force of 5 causes the shaft 34 to rotate in the direction of rotation, that is, to swing.

A first pin 35 and a second pin 36 are provided on the upper surface and the lower surface of the rotating lever 32, and the tip of the first pin 35 is a first pin guide groove 37 provided on the tray 5. The tip of the second pin 36 is inserted into the second pin guide groove 38 provided on the upper surface of the cam drive gear 33.

The above-mentioned first pin 35 and first pin guide groove 3
7 holds the pinion 24 and the rack 23 in mesh with each other until the tray 5 comes to a predetermined position in the cabinet 29, and automatically when the tray 5 comes to a predetermined position by the rotational force of the drive gear 25. Is for releasing the meshing of the pinion 24 and the rack 23, and the first pin guide groove 37 is provided with a rotation preventing groove portion 41 provided on the side of the rack 23 in parallel therewith, and the rotation preventing groove 41. At one end of the groove portion 41, there is a rotation permitting groove portion 42 which is continuously provided at a substantially right angle.

The tray 5 is attached to the cabinet 29.
The first pin 35 stays in the rotation preventing groove portion 41 until it reaches a predetermined position inside, and prevents the rotation lever 32 from rotating, so that the tray 5 moves at a predetermined position in the cabinet 29. When it reaches to the above, the first pin 35 has the rotation allowance groove portion 42.
The pinion 24 is engaged with the cam drive gear 33 by entering the inside and rotating the rotating lever 32.

The second pin 36 and the second pin guide groove 38 prevent the cam drive gear 33 from rotating until the tray 5 reaches a predetermined position in the cabinet 29, and the tray 5 reaches a predetermined position. Pinion and cam drive gear 33
When the gears are engaged with each other, the cam drive gear 33 is allowed to rotate, while the rotation lever 32 is returned and rotated to rotate the pinion 24.
Is for holding the rack 23 so that it does not mesh with the rack 23, and the second pin guide groove 38 is provided in the cam drive gear 3
The rotation permitting groove portion 45 is formed in a ring shape around the shaft 44 of No. 3, and the rotation inhibiting groove portion 46 is provided continuously with the inner circumference of the rotation permitting groove portion 45.

The tray 5 is attached to the cabinet 29.
The second pin 36 is in the rotation preventing groove portion 46 until it reaches a predetermined position in the inside to prevent the cam drive gear 33 from rotating, and the tray 5 reaches a predetermined position in the cabinet 29. The rotation lever 32 is rotated to rotate the pinion 24.
Is engaged with the cam drive gear 33, at the same time, the second pin 36 comes out of the rotation preventing groove portion 46, and the rotation allowance groove portion 4
5, the cam drive gear 33 is allowed to rotate, and at the same time, the rotation lever 32 is locked so as not to return and rotate,
The pinion 24 is held so as not to mesh with the rack 23.

Next, the mechanical deck rotation operation mechanism 21 will be described.

As shown in FIGS. 13 to 14, the mechanical deck rotation operation mechanism 21 includes a cam 51 rotated by the cam drive gear 33, a slider 52 reciprocating by the cam 51, and one end of the slider 52. Is pivotally supported by a pivot shaft 53, and the other end is pivotally supported by a pivot shaft 54 at one end of the mechanical deck 4, and the slider 52 is slid in one direction to rotate in the upright direction. When the slider 52 is moved to raise one end side of the mechanical deck 4 and the slider 52 is slid in the other direction, the rotary lever 55 is turned in the fall direction to lower the one end side of the mechanical deck 4.

The cam 51 is rotatably mounted on the chassis 3 by a shaft 56, and a gear 57 is provided on the outer periphery of the cam 51 so that the first rotation transmission meshed with the gear 57 can be achieved. The gear 58 and the first rotation transmission gear 5
It is adapted to be rotated by the cam drive gear 33 via a second rotation transmission gear 59 meshing with the gear 8.

The pin 52 provided on the lower surface of the cam 51 reciprocates the slider 52.

The slider 52 has a slide guide groove 6
1, 61 and slide guide pins 62, 62 slidably mounted on the chassis 3, and a pin 6 provided on the lower surface of the cam 51 in a long groove 63 provided on one end side.
0 is inserted.

When the cam 51 is rotated in one direction, the slider 52 slides to the right as shown in FIG. 13, and when the cam 51 is rotated in the other direction, the slider 52 is shown in FIG. As you can see, it slides to the left.

A pair of bearing pieces 64, 64 are erected on both sides of the slider 52 on the other end side, and a pair of turning levers 55 are provided on the bearing pieces 64, 64 by a pivot shaft 53, respectively. , 55 is pivoted at one end side.

The other ends of the pair of rotating levers 55, 55 are bent at a substantially right angle as shown in FIGS. 2 and 4, and the tip end thereof is pivotally supported by the pivot shaft 54 on the head block side of the mechanical deck 4. Both ends of the end are pivotally attached.

Then, when the slider 52 is slid to the left as much as possible as shown in FIG.
The pair of rotation levers 55, 55 stand up to raise one end side of the mechanical deck 4 (the mechanical deck 4 is rotated with the pivotal support portions 20, 20 on the other end side of the mechanical deck 4 as fulcrums. 4 is raised), and the slider 52 is slid to the right as shown in FIG.
5, 55 are laid down, one end side of the mechanical deck 4 is lowered, and the head block 17 and the like provided on the mechanical deck 4 are lowered to a position where they do not interfere with the tray 5.

When the mechanical deck 4 is raised at one end, the pivot shafts 53 and 54 of the turning lever 55 are vertically aligned and the force for sliding the slider 52 to the right in FIG. It is designed not to cause.

Further, in FIG. 1, 71 and 72 are reel stands, 73 and 74 are pinch rollers, and 75 and 76 are guide rollers.

Next, the operation of the horizontal loading mechanism of the embodiment will be described.

First, after assembling the mechanical deck 4 and the tray 5 on the chassis 3, if the upper plate 8 is attached, the tray holding member 10 provided on the upper plate 8 prevents the tray 5 from rising.

Then, as shown in FIG. 1, when the tip of the tray 5 is projected from the cabinet 29,
One end of the mechanical deck 4 descends as shown in FIG.

In this state, the cassette mounting portion 15 of the tray 5
When the tape cassette 6 is placed on the tray and the motor 28 of the tray drive mechanism 22 is rotated in one direction, the tray 5 is placed in the cabinet 29 by the pinion 24 and the rack 23 which are meshed with each other as shown in FIG. When the tape cassette 6 is inserted and reaches a predetermined position, as shown in FIG. 11, the turning lever 32 of the switching mechanism 31 is turned, and the pinion 24 and the rack 23 are disengaged from each other. The pinion 24 meshes with the cam drive gear 33 to rotate the cam drive gear 33, as shown in FIG.

When the cam drive gear 33 rotates, as shown in FIG.
The second rotation transmission gear 59 and the first rotation transmission gear 5 shown in FIG.
8, the cam 51 rotates, and the pin 52 provided on the lower surface of the cam 51 slides the slider 52 leftward in FIG. 13 to raise one end of the mechanical deck 4, The tape cassette 6 is attached to the mechanical deck 4. At this time, the tape cassette 6 mounted on the mechanical deck 4 is prevented from rising by the cassette holding member 7.

Recording and reproduction are performed in this state.

After the end of recording / reproduction, the motor 28 of the tray drive mechanism 22 is rotated in the opposite direction to the front (when loading), so that the pinion 24, the cam drive gear 33 meshing with the pinion 24, and the second rotation. The cam 51 rotates in the opposite direction to that at the time of loading via the transmission gear 59 and the first rotation transmission gear 58, and the slider 52 is slid to the right in FIG. 14 by the pin 60 provided on the lower surface of the cam 51. As shown in 2, the mechanical deck 4 is lowered.

When the cam drive gear 33 rotates to a position where one end of the mechanical deck 4 is lowered, the second pin 36 provided on the rotating lever 32 is positioned at the position of the rotation preventing groove portion 45 of the second pin guide groove 38. The rotation lever 32
Is rotated by the rotational force of the drive gear 25 in a direction in which the second pin 36 enters the rotation preventing groove portion 45, and the cam drive gear 33 and the pinion 24 are disengaged from each other, and at the same time the pinion 24 is moved to the rack 25. The tray 5 is ejected, that is, the front end of the tray 5 is projected from the cabinet 29.

In the embodiment, the stopper 13 is provided on the second upper plate 11, but the stopper 13
May be provided on the upper plate 8.

[0052]

The horizontal loading mechanism of the tape cassette of the present invention has the following effects.

(1) Since the tray or the tape cassette is moved only in the horizontal direction and the mechanical deck is rotated toward the tray to mount the tape cassette on the mechanical deck, the conventional tape cassette is replaced by the tray. The structure of the tray can be simplified as compared with the case where the tape cassette is mounted on the cassette receiver and the tray is moved horizontally, and then the cassette receiver is moved vertically to mount the tape cassette on the mechanical deck.

Further, the number of parts of the loading mechanism should be reduced and the structure should be simplified, and the dimension of the loading mechanism in the width direction should be greatly reduced. For example, a double horizontal loading mechanism should be mounted on a set having a width of 225 mm. Can be enabled.

(2) Since the cassette receiver and the tape cassette placed on the cassette receiver are not moved up and down, a cassette holding member that moves up and down in conjunction with the cassette receiving is not necessary as in the conventional case, and the cassette holding member is unnecessary. Can be fixedly attached to a chassis or the like to prevent the tape cassette from rising.

(3) By mounting a mechanical deck or tray on the chassis by providing a cassette restraining member on the upper plate mounted in a state of straddling between the upper ends of the left and right side walls of the chassis, the upper plate is so-called retrofitted. A cassette restraining member can be attached to the chassis along with the plate.

(4) By providing a tray holding member or a stopper on the upper plate in addition to the cassette holding member, it is possible to prevent the tray from rising and the tray from unnecessarily sliding.

[Brief description of drawings]

FIG. 1 is a plan view of an eject state.

FIG. 2 is a sectional view of an ejected state.

FIG. 3 is a plan view of a loading state.

FIG. 4 is a sectional view of a loading state.

FIG. 5 is a perspective view of a cassette holding member and an upper plate.

FIG. 6 is a perspective view of a second upper plate.

FIG. 7 is a perspective view of a tray.

FIG. 8 is a side view of a main part.

FIG. 9 is a sectional view of a main part.

FIG. 10 is a plan view showing a state in which the pinion and the rack are engaged with each other.

FIG. 11 is a plan view showing a state in which a pinion and a cam drive gear mesh with each other.

FIG. 12 is a plan view showing a state where the cam drive gear has rotated.

FIG. 13 is a plan view of the mechanical deck rotation operation mechanism with the mechanical deck lowered.

FIG. 14 is a plan view of the mechanical deck rotation operation mechanism with the mechanical deck raised.

[Explanation of symbols]

 1 ... Tape recorder 2 ... Horizontal loading mechanism 3 ... Chassis 4 ... Mechanical deck 5 ... Tray 6 ... Tape cassette 7 ... Cassette holding member 8 ... Upper plate 10 ... Tray holding member 13 ... Stopper

Claims (3)

[Claims] 1. A mechanical deck and a tray for transporting a tape cassette are attached to a chassis, the tape cassette is placed on the tray, the tray is slid, and the tape cassette is moved above the mechanical deck. The tape cassette is mounted on the mechanical deck by rotating the tape cassette toward the tape cassette, and the upper surface of the tape cassette is suppressed by the cassette pressing member arranged above the tape cassette mounted on the mechanical deck. Horizontal loading mechanism for tape cassettes that prevents the cassette from rising. 2. A horizontal loading mechanism for a tape cassette according to claim 1, wherein the cassette restraining member is provided on an upper plate extending between upper ends of left and right side walls of the chassis. 3. The horizontal loading mechanism for a tape cassette according to claim 2, wherein the upper plate is provided with a tray restraining member for preventing the tray from rising and a stopper for preventing the tray from sliding more than necessary.