JPH038028B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a device for the insertion or ejection of cassettes or discs in recording and/or playback devices.

The device of the invention can be used in recording and/or playback devices comprising a housing in which a disk or cassette is inserted, the housing being mounted on parallel upright plates fixed to a frame. It has a stud that cooperates with an inverted L-shaped slot.

OBJECTS OF THE INVENTION It is an object of the invention to provide a very simple recording and/or playback device with side guide slots and in particular comprising a frame supporting the drive element and/or the playback means. The object of the present invention is to provide a device of the above type which is characterized by a problem-free guiding of the cassette or disc during insertion, positioning and ejection operations of the cassette or disc by means of a mechanism.

Means for Accomplishing the Object This object comprises: a housing containing a cassette or disk; a stud mounted on the housing; a frame comprising two fixed, upright, parallel plates; A cassette or disk is inserted into a recording and/or reproducing device comprising two slots each having an inverted L shape and engaging with the stud, and two parallel movable plates provided with slots. A device for inserting and ejecting cassettes or disks from the device, the slots in each movable plate comprising:
two parallel slots that engage said studs protruding from said inverted L-shaped slots, each of the two movable plates being movable relative to the upright parallel plates and recording and/or or by a device characterized in that it is translationally interconnected in order to ensure the insertion of the disk or cassette into the playback device and the ejection of the disk or cassette from the device. It will be achieved.

In a practical embodiment of the invention, the movement of the movable plate is effected by a gear wheel supported on a spindle, which engages a rack provided on the movable plate.

The invention will be explained in detail with reference to embodiments relating to a cassette insertion device (FIGS. 1 and 3) and embodiments relating to its application to a disk (FIGS. 4 to 6).

In the attached drawings (Figures 1 to 3), 10
supports drive and/or playback means for the magnetic tape. The frame of the cassette device is represented.

On this frame, two
Two side upright plates 12 are attached.

Slots 14 having an inverted L shape are provided in these upright plates 12.

The housing 18 containing the cassette 20 is fitted with a slot 14 to ensure that the housing and cassette move horizontally and then vertically to position the cassette over the magnetic tape drive and/or playback means. It is provided with a stud 16 designed to engage.

According to the invention, a movable plate 22 is provided laterally to each upright plate 12.

Each movable plate 22 is provided with a rack 26 on its lower edge, engaged by a gear 28 carried by a common spindle 30 fixed to the frame 10.

The two movable plates 22 thus engage two identical gear wheels 28 which are fixed to each other as a result of being mounted on the same rotating spindle 30.

In the mechanical embodiment, one of the gears 28 is provided with an eccentric plate 33 with a stud 32, as shown in FIG. Attached to this stud 32 is a spring 34, the other end of which is connected to a vertical lug 36 of the fixed frame 10.

Each of the movable plates 22 has two oblique and parallel slots 24 through which the studs 16 of the housing 18 pass.

Fully ejected position of cassette 20 (first A
As gear 28 rotates during inward movement of housing 18 from FIG. 1B, gear 28 and eccentric plate 33 rotate counterclockwise toward the position of FIG. 1B. The tension of spring 34 acting through stud 32 is then used to further rotate gear 28 in a counterclockwise direction and move movable plate 22 inwardly through rack 26, removing housing 18 and cassette 20. is cammed downwardly by the action of the slanted slot 24 in the movable plate 22 to position the cassette in the operating position of FIG. 1C.

In this state, the lateral movable plates 22, which do not deflect relative to each other with respect to their movements,
The stud 16 of the housing 18 engages the stud 16 of the housing 18 so as to couple the movement without deflection during the insertion and ejection of the zero.

When inserting the cassette 20, the movable plate 22
The movement of the cassette 20, and therefore the housing 18, is displaced under the control and the cassette is moved downward onto its drive means and/or regeneration means. This displacement of the movable plate takes place in a single direction within the insertion plane of the cassette.

Replace the housing 18 and remove the cassette 20.
A motor (not shown) drives the gear by mechanical action or manually to release the
Rotate gear 28 clockwise to center stud 32 and spring 34. After being centered, stud 32 and eccentric plate 33 are rotated clockwise by the force of spring 34, returning housing 18 and ejecting cassette 20.

The means for rotating the stud 32 in the clockwise direction by the required rotational distance is, in the present invention, a second gear 41 (FIGS. 1A and 1B) fixed to the gear 28.
1C), this second gear 41 is shown as a slide 43 with a push button 46.
Engaged with a rack formed above, the movement of the slide 43 is guided by a projection 44 fixed to the frame and engaged in a slot 45.

Upon ejection, only the displacement of the movable plate ensures that the cassette is returned to its rest or inoperative position (cassette ejection).

An important feature is therefore that during the insertion and ejection operations:
The movable plate undergoes only a single reciprocating movement in the insertion plane of the cassette.

For this purpose, each movable plate 22 is held and guided by a stud 39 fixed to the upright plate 12, and the corresponding movable plate 22
is provided with a horizontal slot 40, the stud 39 engages with the horizontal slot 40, and a stop ring 38 is attached to the portion of the stud 39 that projects from the horizontal slot 40.

Slots 24 provided in the side movable plates 22
preferably has a length greater than the length of the full operative movement of the cassette to ensure that the cassette fully reaches its operating position.

Figures 4, 5 and 6 show the fitting of the above-described mechanical device to the cassette.

In the same manner, the frame 10 supports two upright plates in the form of plates with slots 14 arranged parallel to each other and having an inverted L-shape.

A movable plate 22-22' provided with an inclined slot 24 is provided laterally to each upright plate 12.

The disc to be played is indicated by 50, and 51 represents a drive plate for rotating the disc driven by the motor MD (fourth
(See Figures 5 and 6).

During insertion, the disc 50 comes into contact with a projection 52 supported by a housing or support plate 53.

This housing 53 has a stud 16 designed to engage the slot 14 so as to allow the housing 53 and the disk 50 to be moved horizontally and then vertically to position the disk 50 on the drive plate 51. Equipped with

These movable plates 22-22' are also easy to use.
6. It is fixed via a gear 28 and a spindle 30.

Switches SW1 and SW2 indicate the positions of the switches and their functions will be explained below.

The release and braking mechanism, which is clear from FIGS. 5 and 6, comprises the following elements:

A lever 56 carrying a stud 57 which can act on switch SW2 to maintain it in position L is pivotable about a spindle 55 supported by a fixed frame 10.

An arm 58 is connected to this lever 56. The other end of this arm 58 is connected on a wheel 59 which is fixed to a spindle 60 and includes a cam 61. The profile 62 of the cam 61 can act on a stud 63 supported by a lever 64, which is provided at its end with a shoe 65 that can act on the drive plate 51 of the drive motor.

The wheel 59 is rotated by a pinion 66 attached to the shaft 67 of the motor MM.

In the rest position (Fig. 4): a) Switch SW1 is in position H in FIG.

b) Switch SW2 is in position L in FIG.

During the insertion of the disk 50, the movable plate 22-2
2' is displaced under the control of the movement of the housing 53 and thus of the disk, and the disk is positioned on the drive plate 51.

Furthermore, as a result of the action of the tongue 70 provided on the movable plate 22, the switch SW1 moves from the position H to the position L (see FIGS. 5 and 7).

When motor MD is activated, disk 5
0 is rotated.

At this time, the disc is ejected from position H to position L.
(4th
(Figures 7 to 7).

The motor MM is then energized and causes the cam 61 to rotate clockwise, the outer shape 62 of the cam 61 acting on the stud 63 of the lever 64 which, under the action of the spring 68, rotates the shoe 65 into the motor. It is pressed against the drive plate 51 of the MD, thereby stopping the rotational movement of the disk 50 and making it stand still.

The wheel 59 also drives the lever 58, which ensures pivoting of the lever 56 around the spindle 55. This lever 56 is connected to the movable plate 22' in order to ensure the return movement of the movable plate 22' as well as the return movement of the movable plate 22'.
studs 57 on flange 71 supported by
acts through.

As a result of this movement, the housing 53 and the disc 50 are displaced vertically and then horizontally, so that the disc 50 is ejected.

Since switch SW2 is no longer under the action of the stud, switch SW2 returns to position H, which ensures the power supply to motor MM.

While the shoe 65 is released, the lever 56
The disk is ejected by the stroke.

At this time, the ejection of the disc is completed.

Since motor MM is still activated (SW
2: position H), the motor MM continues its rotation to ensure one complete rotation of the cam 61. It can also be envisaged that the cam will perform only 1/2 revolution in order to obtain fully automatic control of disk insertion.

Effects The device of the present invention, which inserts a cassette or disk into a recording and/or reproducing device and ejects the cassette or disk from the device, has the following excellent effects.

(a) Through the inverted L-shaped slots 14 provided in the two fixed, upright, parallel plates 12 provided in the frame 10, the studs 16 provided in the housings 18, 53 and the movable plate 22 are inserted. Slot 24 is engaged. That is, both the housing and the movable plate move relative to the fixed upright plate. As a result, the device of the invention allows heavy cassettes and large disks to be inserted into and ejected from the recording and/or playback device with high reliability. Furthermore, even when the recording and/or reproducing device is mounted on a vehicle that experiences a lot of vibration, cassettes and disks can be inserted into and ejected from the recording and/or reproducing device with high reliability.

(b) If two movable plates are not connected to each other, for example, if friction is applied to one movable plate, the two movable plates will not be able to move in translation. In addition, if there is only one movable plate and the stud provided in the housing on the side where no movable plate is present engages only with the inverted L-shaped slot of the upright plate, such side The stud may not move smoothly within the slot. As a result, there are problems in that the housing is distorted and the device malfunctions. However, in the device of the present invention, since the two movable plates are interconnected so as to move in translation, these problems can be prevented, and cassettes and disks can be recorded and recorded with high reliability. and/or can be inserted into or ejected from a regeneration device.

[Brief explanation of the drawing]

1A, 1B and 1C are illustrative side views of one embodiment of the apparatus of the present invention. Second
The figure is a plan view of the apparatus of the invention shown in Figures 1A-C. FIG. 3 is a partially exploded perspective view of the apparatus of the invention shown in FIGS. 1A-C. FIG. 4 is a plan view of another embodiment of the device of the invention applied to a disk and in the inactive position. FIG. 5 is a bottom view of the device of the invention shown in FIG. 4 in the activated position. FIG. 6 is a bottom view of the device of the invention shown in FIG. 4 in an inoperative position. FIG. 7 is an electrical circuit diagram of the device of the invention shown in FIG. 10...Frame, 12...Upright board, 14
...Inverted L-shaped slot, 16... Stud, 1
8...housing, 20...cassette, 22...
Movable plate, 24...slot, 26...rack,
28...Gear, 32...Stud, 33...Eccentric plate, 41...Gear, 44...Protrusion, 50...Disc, 58...Arm, 59...Wheel, 61
...Cam, 64...Lever.

Claims (1)

[Claims] 1. A frame 10 comprising: a housing 18, 53 for accommodating a cassette 20 or disk 50; a stud 16 provided on the housing 18, 53; and two fixed, upright, parallel plates 12. two slots 14 provided in each of the upright plates 12 and having an inverted L shape and engaging the studs 16; and two parallel movable plates 22 provided with slots 24. A device for inserting a cassette or disc into a recording and/or reproducing device made of 14, each of the two movable plates 22 being movable relative to the upright parallel plate 12 and capable of recording and/or reproducing. A device characterized in that the devices are translationally interconnected to ensure the insertion of a disk or cassette into the device and the ejection of the disk or cassette from the device. 2. The movement of the movable plate 22 causes the movement of the movable plate 22 to
2. A device as claimed in claim 1, characterized in that it is carried out by means of a gear wheel (28) supported by a spindle, which engages with a rack (26) provided on the shaft. 3. Device according to claim 2, characterized in that one of the gears (28) comprises an eccentric plate (33) subjected to the action of elastic means (34). 4. A stud 39 is provided on the upright plate 12,
A horizontal slot 40 is provided in the movable plate 22;
Each movable plate 22 is held and guided by a stud 39 which engages a horizontal slot 40, and a stop ring 38 is attached to the portion of the stud 39 that projects from the horizontal slot 40. An apparatus according to any one of claims 1 to 3. 5. In order to ensure automatic control of the insertion or ejection of cassettes or discs, said gear 2
5. A device according to any one of claims 1 to 4, comprising mechanical means (41) for engaging one of the devices.