JPH0687341B2 - Cartridge auto-reading mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Outline] According to the present invention, a housing for accommodating a cartridge can be moved up and down by an eject member that is driven by a drive system to move forward and backward, and a lower position which is an operating position and a cartridge can be inserted / removed. In an autoloading mechanism of an information recording device that is configured to be positioned at a different rising position, the purpose is to be able to take out the cartridge set in the operating position in the event of a power failure.
The eject member is made movable while the drive system is stopped, whereby the housing is moved from the lowered position to the raised position to achieve the purpose.

[Industrial application field]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information storage device that uses a recording disk, such as a magnetic recording disk or an optical recording disk, housed in a cartridge as a medium, and more particularly to an autoloading mechanism for the cartridge.

In this type of device, insertion / removal of the cartridge from / to the housing is performed with the housing in the raised position, and reading / writing to / from the recording disc in the cartridge inserted into the housing is performed at the lowered position of the housing. It is performed in the positioned state. The vertical movement of the housing is performed by advancing and retracting an eject member that engages with the housing via an inclined cam mechanism by a drive system including a drive motor. When the cartridge is inserted into the housing in the raised position, the recording disk protective cover provided on the cartridge is opened by the opening means including the rotating arm provided in the housing. The housing is positioned at the lowered position. Therefore, it is possible to read from and write to the recording disk housed in the cartridge in the housing at the lowered position.

[Conventional technology]

FIG. 4 is a side view showing a conventional autoloading mechanism for a cartridge, in which 1 is an eject member, 2 is an eccentric roller (first engaging member), 3 is a housing, and 100 is a cartridge.

The eject member 1 is provided on the base 4 and is movable in the left-right direction in a housing (not shown) of the device,
A groove-shaped inclined cam 6 is provided.

The eccentric roller 2 is eccentrically provided on the side surface of the gear 7, and the gear 7 is driven through a pinion 9 by a loading motor (drive source) 8 provided in the housing to rotate 180 ° clockwise in the figure. It is possible to rotate intermittently. The eccentric roller 2 is engaged with the eject member 1 with an appropriate clearance of the groove 5.

The housing 3 integrally has a protrusion 11 provided with a roller (second engagement member) 10 that engages with the inclined cam 6, and is provided so as to be vertically movable in the housing. Reference numeral 12 shown by a chain line is a guide groove provided on the housing side, and engages with the roller 10 to guide the vertical movement of the housing 3. The housing 3 is positioned at the illustrated raised position when the device is not used.
In this state, the roller 10 is engaged with the upper horizontal portion 6a of the inclined cam 6.

Now, insert the cartridge 10 into the housing 3 in the state shown in FIG.
When 0 is inserted, the distal end of the cover of the cartridge 100 is engaged with the opening means including a rotation arm (not shown) provided in the housing 3 in the latter stage of the inserting operation, and in the inserted state where the insertion is completed, the cover is Is completely opened and the cartridge 100 is locked by a locking means (not shown). This loading state is detected by a sensor (not shown), and the loading motor 8 rotates by a predetermined amount.
The eccentric roller 2 rotates 180 ° clockwise from the position shown in the figure. Therefore, the eject portion 1 that engages with the eccentric roller 2 via the groove 5 is driven by the eccentric roller 2 and advances to the right by a predetermined amount, and the housing 3 coupled via the inclined cam 6 and the roller 10 descends. The roller 10 is positioned at the lower position where the lower horizontal portion 6b of the inclined cam 6 engages. In this state, reading and writing can be performed on the storage recording disc of the cartridge 100, which has the cover inside the housing 3 opened. When the predetermined operation is finished and the cartridge 100 is discharged, the loading motor 8 is further rotated by the same amount. As a result, the eccentric roller 2 rotates 180 ° to the initial position shown in FIG. 4, and the eject member 1 retracts by a predetermined amount. As a result, the housing 3 is raised and positioned at the initial raised position. In this state, Cartridge
The lock of 100 is released, and the cartridge 100 is ejected by the restoring force of the rotating arm and protrudes from the housing 3 by a predetermined amount so that it can be taken out.

[Problems to be solved by the invention]

In the conventional autoloading mechanism of the cartridge ridge having the above-described structure and operation, the loading motor 8 and the eject member 1 are connected so as to interlock in a state close to a direct connection as described above. If a power failure or a failure of the loading motor 8 occurs with the housing 3 positioned in the lowered position, the cartridge 100 containing important data will remain stored in the device and cannot be taken out. Will end up.

[Means for solving problems]

The present invention provides an autoloading mechanism for a cartridge which can solve the above-mentioned problems, the principle of which is shown in FIG.

FIG. 1 (a) is a side view showing a state in which the housing is positioned at a raised position, and FIG. 1 (b) is a side view showing a state in which the housing is positioned at a lowered position, in which 21 is an eject member. , 22 and 23 are the first engaging member and the housing.

The eject member 21 is movable in the left-right direction in a housing (not shown) of the apparatus or the like, and includes an L-shaped groove 24 and an inclined cam 25.

The first engaging member 22 is similar to the conventional eccentric roller 2 and is eccentrically provided integrally with the rotary shaft and is driven by a drive source 26 that is provided inside the housing and operates at a predetermined time.
Rotate in the same direction by 0 °. In this figure, the first engaging member 2
2 is a gear 28 driven by a drive source 26 via a pinion 27
The example is shown protruding from the side surface of the. The first engaging member 22 engages with the groove 24 of the eject member 21.

The housing 23 is similar to the conventional housing 3,
A second engaging member 29 that engages with the inclined cam 25 is provided, and can be moved up and down within the housing. This drawing shows an example in which the chain line guide groove 30 provided on the housing side engages with the second engaging member 29 to guide the vertical movement of the housing 23.

[Action]

When inserting the cartridge 100 into the housing 23, the housing 23 is positioned in the raised position as shown in FIG. 1 (a), and the second engaging member 29 engages with the upper portion of the inclined cam 25. There is. In this state, the cartridge 10 inside the housing 23
When 0 is attached, the drive source 26 starts to operate, but this operation is started by providing a sensor for detecting, for example, insertion of a cartridge, and by the detection signal of the sensor. When the drive source 26 starts to operate, the first engaging member 22 driven by the drive source 26 rotates 180 ° in the clockwise direction in FIG. 1, and the groove 24 is formed in the first engaging member 22. The eject member 21, which is engaged via the movable member, moves to the right and is positioned at the forward position of FIG. 1 (b). In this case, the first engaging member 22 is further rotated after the movement of the eject member 21 is completed, and the first engaging member 22 is further rotated in the L-shaped groove.
Enter the wide part 31 of 24. During this time, the housing 23
The second engaging member 29 is guided by the inclined cam 25 to descend and is positioned at the descending position of FIG. 1 (b). In this state, it is possible to perform processing such as reading and writing on the recording disk housed in the cartridge 100.

When the cartridge 100 is taken out from this state, the external switch or the like is operated to operate the drive source 26 and rotate the first engaging member 22 by 180 ° in the same direction as described above. This allows
The eject member 21 is driven by the first engaging member 22 and moves leftward to be positioned at the retracted position in FIG. 1 (a),
The housing 23 is raised by the second engaging member 29 being guided by the inclined cam 25 and is positioned at the raised position of FIG. 1 (a). In this state, the cartridge 100 can be taken out of the housing 23.

By the way, in the conventional structure, when the power failure or the failure of the drive source 26, the cartridge cannot be taken out from the housing positioned in the lowered position. However, in the present invention, the groove 24 is L-shaped, and the eject member is formed. The first engaging member 22, which rotates 180 ° to move 21 to the forward position of FIG. 1B, further moves after the movement of the eject member 21 and enters the wide portion 31 of the groove 24. However, the distance L between the first engaging member 22 and the right end of the wide portion 31 is set to be larger than the forward / backward stroke of the eject member 21 (the groove 24 moves the eject member 21 from the forward position to the backward position). The eject member is positioned at the forward position of FIG. 1 (b) because it has a shape that allows it to move.
By pressing 21 to the left as shown by the arrow, the eject member 21 can be moved to the retracted position in FIG. 1 (a). As a result, the housing 23 is positioned at the raised position, so that the cartridge can be taken out.

That is, even if a power failure or a drive source failure occurs, the housing can be manually positioned at the raised position and the cartridge can be taken out.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 2 and 3.

FIG. 2 is a side view of an automatic loading mechanism for a cartridge according to the present invention. FIG. 2 (a) shows an operating state in which the housing is positioned in the lowered position, and FIG. 2 (b) shows the housing in the raised position. The respective ejected states are shown. In the figure, 41 is an eject member, 42 is an eccentric roller (first engaging member), and 43 is a housing.

The eject member 41 is provided with an L-shaped groove 44, which is movable in the left-right direction inside the housing of the apparatus, and a groove-shaped inclined cam 45. The groove 44 is a cam plate attached to the eject member 41.
46, it has a narrow portion 44a and a wide portion 44b.

The eccentric roller 42 is eccentrically provided on the rotating shaft and is integrally provided,
It is driven by a one-way rotating loading motor (driving source) 47 which is provided in the housing and operates at a predetermined time, and rotates in the same direction by 180 °.

In this example, an eccentric roller 42 is provided on a side surface of a gear 49 driven by a loading motor 47 via a pinion 48. The eccentric roller 42 is an eject member.
It engages with the groove 44 of 41.

The housing 43 includes a roller (second engaging member) 50 that engages with the inclined cam 45, and can move up and down in the housing. In this example, the guide groove 51 shown by the chain line provided on the housing side is engaged with the roller 50 to guide the vertical movement of the housing 43.

When the cartridge 100 is inserted into the housing 43, the housing 43 is positioned at the raised position as shown in FIG. 2B, and the roller 50 is engaged with the upper portion of the inclined cam 45. In this state, the cartridge 100 is inserted into the housing 43. This insertion is performed while rotating the arm (not shown) by the tip of the cartridge 100, and the arm opens the shutter of the cartridge 100. Cartridge 100
The loading motor 47 starts to operate when is mounted, but this operation is started by, for example, providing a sensor for detecting the insertion of the cartridge ridge and detecting the signal from the sensor. When the loading motor 47 starts to operate, the eccentric roller 42 driven by the loading motor 47 starts to rotate from the position of the chain line in FIG. 2 (b), and the eccentric roller 42 is shown in FIG. 2 (a). When it is rotated 180 ° to the position indicated by the chain line, the loading motor 47 stops operating. In the meantime, the eject member that engages with the eccentric roller 42 through the groove 44
41 moves to the right for a predetermined distance, and is positioned at the forward position by the toggle spring 52. In this process, the housing 43 is lowered by the roller 50 being guided by the inclined cam 45 and is positioned at the lowered position of FIG. 2 (a).
In this state, the cartridge 100 is set, and the hub of the recording disk therein is engaged with a spindle (not shown) on the side of the housing, so that processing such as reading and writing on the stored recording disk becomes possible.

When the cartridge 100 is discharged, the loading motor 47 is operated by operating an external switch or the like. This allows
The eccentric roller 42 rotates 180 ° from the position of the chain line in FIG. 2 (a) to the position of the chain line in FIG. 2 (b), during which the eject member 41 is driven by the eccentric roller 42 and moves to the left by a predetermined distance. Then, the toggle spring 52 positions it in the original retracted position. In this process, the housing 43
Is raised by the roller 50 being guided by the inclined cam 45 and positioned at the raised position in FIG. 2 (b). In this state, the cartridge 100 can be taken out of the housing 43.

By the way, in the conventional structure, in the event of a power failure or a failure of the loading motor, it was not possible to take out the cartridge from the housing positioned in the lowered position. However, in the present invention, the groove 44 has an L-shape, and it is necessary to move the eject member 41 to the forward position of FIG.
The eccentric roller 42, which rotates by 0 °, further moves after the movement of the eject member 41 is completed, and as shown by the chain line, the wide portion 44 of the groove 44.
The distance L between the eccentric roller 42 and the right end of the wide portion 44b is set larger than the forward / backward stroke of the eject member 41 (the groove 44 moves the eject member 41 from the forward position to the backward position). 2) of the eject member 41 by pressing the eject member 41 positioned at the forward position of FIG. 2 (a) to the left as shown by the arrow. It can be moved to the retracted position of (b). By this movement, the housing 43 is positioned at the raised position, so that the cartridge can be taken out. That is, even if a power failure or motor failure occurs, the cartridge can be taken out by manually positioning the housing at the raised position. Then, when the cartridge is set next time, after the gear 49 rotates to the start position (at this time, the eccentric roller 42 comes to the position shown by the chain line in FIG. 2B), the above-mentioned operation is newly repeated. Is.

FIG. 3 is a diagram for explaining the relationship between the eccentric roller and the cam plate in each operation. FIG. 3 (a) shows the start state, and FIG. 3 (b) shows the cartridge member operation in which the eject member has the maximum amount due to the eccentric roller. FIG. 3 (c) shows a driven state, FIG. 3 (c) shows a set operation completed state, and FIG. 3 (d) shows an eject completed state in which the eject member is manually pushed in from the state shown in FIG. 3 (c). FIG. 3E shows a state in which the automatic eject member is driven by the eccentric roller toward the retracted position by the maximum amount, and FIG. 3F shows a state in which the automatic eject operation is completed.

〔The invention's effect〕

As described above, according to the present invention, even if a power failure or loading motor failure occurs in the cartridge storage state, the cartridge can be easily taken out. Also,
As for the mechanism, the shape of the groove that engages with the first engaging member is simply devised, and the cost can be reduced.

[Brief description of drawings]

1 (a) and 1 (b) are principle views of the present invention, FIGS. 2 (a) and 2 (b) are side views showing an autoloading mechanism of a cartridge according to an embodiment of the present invention, and FIG. 3 (a). ) To (f) are explanatory views of the relationship between the eccentric roller and the cam plate in each operation, and FIG. 4 is a side view showing a conventional auto load deinking mechanism of a cartridge, in which 21,41 are eject members, 22. , 42 are eccentric rollers (first engaging members), 23, 43 are housings, 24, 44 are L-shaped grooves, 25, 45 are inclined cams, 26, 47 are loading motors (driving sources), 29, Reference numeral 50 is a roller (second engaging member), 31,44b are wide portions, and 100 is a cartridge.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiro Muto 2-16-20 Shimura, Itabashi-ku, Tokyo Stock Company Copal (72) Inventor Mitsuo Takahashi 2-16-20 Shimura, Itabashi-ku, Tokyo Stock Association Company Copal (72) Inventor Koji Asako 2-16-20 Shimura, Itabashi-ku, Tokyo Stock Company Copal

Claims (1)

[Claims] 1. An information storage device using a recording disk housed in a cartridge as a medium, comprising a groove (24) and an inclined cam (25), and moving back and forth between a forward position and a backward position. A possible eject member (21), a first engaging member (22) that is eccentrically integrated with the rotating shaft and is engaged integrally with the groove, and the first engaging member that operates at a predetermined time. Drive source (26) for rotating the eject member by 180 ° in the same direction to position the eject member at the forward position and the retracted position, and a second engaging member (upwardly movable and engaging with the inclined cam ( 29), and a carriage mounting housing for driving the eject member, which is driven by the inclined cam via the second engaging member when the eject member is positioned at the forward position and the retracted position, and is positioned at the descending position and the ascending position, respectively. Be equipped with An automatic loading mechanism for a cartridge, wherein the groove (24) of the eject member has a shape that allows the eject member to be manually operated from the forward movement position to the backward movement position when the drive source is stopped.