JPH0650863Y2 - Disk cartridge attachment / detachment mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a disc cartridge loading / unloading mechanism, and more particularly to a so-called auto loading mechanism for automatically loading and unloading a disc cartridge in a recording / reproducing apparatus.

[Prior Art] For example, in a 2-inch magnetic disk device for an electronic still camera, a disk cartridge that rotatably stores a magnetic recording medium is attached to and detached from the device, and the disk cartridge is housed in a housing as a magnetic head or a spindle hub. There is known a mechanism in which the disk cartridge is inserted with a proper clearance so as not to come into contact with the disk cartridge, and then the disk cartridge is completely inserted into the housing, and then the housing is lowered to the apparatus main body side for mounting.

Conventionally, cassette tapes, VTRs, etc., have adopted a mechanism for automatically loading and unloading the recording medium, a so-called auto loading mechanism, which has good operability for the user.
Therefore, in recent years, an auto-loading mechanism has come to be adopted also in magnetic disk recording / reproducing devices.

[Problems to be Solved by the Invention] However, when an attempt is made to employ such a mechanism in a magnetic disk recording / reproducing apparatus, a mechanism for retracting the disk cartridge into the housing and lowering the housing relative to the apparatus main body so that the disk cartridge can be removed. There is a problem that a mechanism for mounting is required, and the mounting and discharging must be performed by using another mechanism, and the entire mechanism becomes complicated and the device becomes large.

SUMMARY OF THE INVENTION In view of the above problems, it is an object of the present invention to provide an attachment / detachment mechanism that can automatically load a disk cartridge without increasing the size of the device with a simple mechanism.

[Means for Solving the Problems] The above-mentioned object is to provide a housing for holding a disc cartridge that rotatably accommodates a recording medium so that the disc cartridge can be guided along the insertion / ejection direction, and an insertion / ejection position and loading of the disc cartridge. A guide member for movably supporting the housing between a position and a position, and a slide member for moving the housing between the insertion / ejection position and the loading position by moving along the insertion / ejection direction. And a detection member for detecting that the disc cartridge has been inserted into a predetermined position in the housing, and a mechanism for attaching and detaching the disc cartridge from the predetermined position in the housing of the disc cartridge to a completely inserted position. Has a first cam surface with an outer peripheral length corresponding to the stroke of A first roller that rotates the cam surface of the disk cartridge while contacting the disk cartridge that has been inserted to the predetermined position to move the disk cartridge by the amount equivalent to the stroke; and a position from the insertion / ejection position of the housing to the loading position. The second cam surface has a second cam surface having an outer peripheral length corresponding to the stroke of the slide member, and the second cam surface is inserted after the first roller moves to a position where the disc cartridge is completely inserted. A second roller for rotating the slide member by the amount corresponding to the stroke by rotating while contacting the slide member at the ejectable position; and a motor for synchronously rotating the first roller and the second roller. It is achieved by

[Operation] When the detection member detects that the user has inserted the disc cartridge to a predetermined position in the housing, the motor operates and the first roller and the second roller start to rotate. First, the cam surface of the first roller contacts the disk cartridge and moves it to the completely inserted position. After that, the cam surface of the second roller moves the slide member, the housing moves from the position where the disc cartridge can be inserted and ejected to the loaded position, and the loading of the disc cartridge is completed.

Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a perspective view showing an attachment / detachment mechanism of a disk cartridge of the present invention, and FIG. 2 is a plan view of the same.

Reference numeral 1 is a disk cartridge which holds a magnetic disk (not shown) rotatably therein.

Reference numeral 2 denotes a housing, which is configured by bending holding portions 2b and 2b on both sides so that an opening 2a into which the disc cartridge 1 is inserted is formed.
At the time of mounting, the tip 1a is inserted until it comes into contact with the bent portion 2c, and is held by the holding portions 2b, 2b on both sides, and a sensor 13 described later on the upper surface thereof can detect the position of the disc cartridge 1. A hole 2d is provided to allow it. Pins protruding laterally are provided on the holding portions 2b, 2b.
There are three and three.

Reference numerals 4 and 4 are guide plates, which are fixed to the base 5 so that the openings of the U-shaped grooves 4a and 4a are oriented in a substantially vertical direction, and the housing 2 has the pins 3 and 3 in the U-shaped grooves 4a and 4a. By moving, it is supported by the base 5 so that it can come into contact with and separate from the base 5.

A slide plate 6 is slidably supported by a base 5 and a pin 7 in a pin-slot relationship, and long grooves 6a, 6a into which the pins 3, 3 are inserted are formed in the side plate. By moving the pin horizontally
The slopes 3 and 3 are formed so as to move up and down along the long grooves 6a, and the lower surface has a hole 6b through which the spindle motor 16 projects and a hole 6 through which a first roller described later can project.
c and 6c are provided.

Reference numeral 8 denotes a rotating shaft, which is connected to a stepping motor 10 by a gear 9 and is rotated by the stepping motor 10 being rotated by a driving power source from a control circuit (not shown). The rotating shaft 8 has a second roller 11 having a substantially semicircular cross section and capable of contacting the lower surface of the slide plate 6,
And the cross section is substantially fan-shaped and the hole 6c of the slide plate 6
Two first rollers 12 are provided so as to be able to come out of the upper part of the disk cartridge 1 and come into contact with the lower surface of the disc cartridge 1 so as to rotate integrally with each two rollers.

Reference numeral 13 is a reflection type photo sensor, which is provided in the main body of the apparatus above the housing 2, and a position signal can be obtained in the control circuit by inserting the disc cartridge 1 to a predetermined position in the housing. Has been done.

FIG. 3 is an operation explanatory diagram of the present embodiment having the above-mentioned configuration, and the operation will be described based on this.

When the user inserts the disc cartridge 1 into the housing 2 through the opening 2a, the tip 1a of the disc cartridge 1 becomes a sensor.
By being inserted up to the position detected by 13 (FIG. 3 (a)), drive power is supplied from the control circuit to the stepping motor 10 and the rotary shaft 8 starts left-handed rotation. still,
The position detected by the sensor 13 is a position where the tip 1a of the disk cartridge 1 comes into contact with the one end 12a of the first roller 12 protruding into the housing 2. Then, when the rotary shaft 8 is rotated counterclockwise, the first roller 12 is rotated counterclockwise, and the peripheral surface of the roller 12 is rubbed against the lower surface of the disk cartridge 1 so that the disk cartridge 1 is moved inward in the housing 2 (in the left direction in the drawing). Move further to (3rd
Figure (b)). And the tip 1a of the disc cartridge 1
When is inserted into a position where it abuts on the bent portion 2c, the end 12b of the first roller 12 separates from the lower surface of the disc cartridge 1 and the drawing of the disc cartridge 1 into the housing 2 is completed (Fig. 3). (C)). Then, at the same time when this drawing is completed, the tip end 11a of the second roller 11 is
Contacts the lower surface of the slide plate 6 and pushes the slide plate 6 to move it to the left in the drawing (FIG. 3 (c)). Therefore, the pins 3 and 3 are pushed downward along the inclination of the long grooves 6a and 6a, the pins 3 and 3 move in the U-shaped groove 4a of the guide plate, and the magnetic disk in the disk cartridge 1 moves to the spindle 16. It is chucked and the installation is completed (3rd
Figure (e)).

When ejecting from the mounted state of FIG. 3 (e), by pressing an eject button (not shown), the control circuit causes the stepping motor 10 to rotate in the opposite direction to the mounting direction, that is, to rotate counterclockwise, thereby performing the above-described operation. In the reverse order of
The disc cartridge 1 is ejected. When the tip 1a of the disc cartridge 1 is ejected to the position detected by the sensor, the stepping motor 10 is stopped and the ejection is completed.

In the present embodiment, the second roller 11 and the slide plate 6
By forming gears on the lower surface of the roller and the slide plate so that the lower surface of the slide plate and the lower surface of the slide plate are engaged in a rack-and-pinion relationship, the movement of the slide plate 7 can be made more reliable.

[Other Embodiments] Another embodiment of the present invention will be described with reference to FIGS. The same members as those in the first embodiment are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, the inclination of the long grooves 6a ', 6a' of the slide plate 6'is formed in the opposite direction, that is, unlike the first embodiment, the slide plate 6'is in the direction opposite to the insertion direction of the disc cartridge 1 ( By moving to the right of the drawing)
The pins 3, 3 move downward in the U-shaped groove 4a, and the housing 2 moves downward.

A second roller 11 'is rotatably supported by the base 5 on a second rotating shaft 15 which is rotated by the rotating force of the stepping motor 10. This second rotary shaft 15 has a gear 1
The second rotary shaft 18 is supported by the base 5 via 6 and 17 so as to rotate in the direction opposite to the second rotary shaft, and
Roller 12 'is fixed.

Therefore, in this embodiment, the stepping motor 10 rotates the second rotating shaft clockwise, and in conjunction with this, the first roller 12 'rotates counterclockwise to push and insert the disc cartridge 1, and then When the second roller 11 'pushes the slide plate 6'to the right, the housing 2 moves downward and the mounting is completed.

[Effect] As described above, according to the disc cartridge attaching / detaching mechanism of the present invention, the first roller for pulling in the disc cartridge and the second roller for moving the slide member are integrated using a single drive source. By automatically rotating the drive, autoloading can be performed without complicating the mechanism, so the cost and size of the device can be reduced, and the rotation of a single drive source allows the disc cartridge to be retracted and retracted. Since the slide members can be sequentially moved, the control does not become complicated.

[Brief description of drawings]

1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a plan view of the embodiment of FIG. 1, FIG. 3 is an operation explanatory view of the embodiment of FIG. 1, and FIG. FIG. 5 is a plan view showing another embodiment of the present invention, and FIG. 5 is an operation explanatory view of the embodiment of FIG. 1 ... Disc cartridge 2 ... Housing 4 ... Guide plate 5 ... Base 6,6 '... Slide plate 8 ... Rotating shaft 10,10' ... Stepping motor 11,11 '... Second roller 12 , 12 '…… First roller 13 …… Photo sensor 15 …… Second rotary shaft 18 …… First rotary shaft

Claims (1)

[Scope of utility model registration request] 1. A housing for holding a disc cartridge rotatably accommodating a recording medium so that the disc cartridge can be guided along the insertion / ejection direction, and the housing between the insertion / ejection possible position and the loading position of the disc cartridge. A disc cartridge attaching / detaching mechanism comprising: a guide member that movably supports the slide member; and a slide member that moves the housing between the insertion / ejection position and the loading position by moving along the insertion / ejection direction. A detection member for detecting that the disc cartridge has been inserted into a predetermined position in the housing, and an outer peripheral length corresponding to a stroke from the predetermined position in the housing of the disc cartridge to a completely inserted position. Having a first cam surface, and
A first roller that rotates the cam surface of the housing while abutting the disk cartridge inserted to the predetermined position to move the disk cartridge by the amount equivalent to the stroke; and from the insertion / ejection position of the housing to the loading position. The second cam surface has a second cam surface having an outer peripheral length corresponding to the moving stroke of the slide member, and the second cam surface is moved after the first roller has moved to a position where the disc cartridge is completely inserted. A second roller for rotating the slide member corresponding to the stroke by rotating while abutting on the slide member in the insertion / ejection possible position; and a motor for synchronously rotating the first roller and the second roller. A mechanism for attaching / detaching a disc cartridge, which comprises: