JPH04168655A - Loading structure of information recording device - Google Patents

Abstract

PURPOSE:To enable an information recording device to be compact and thin by providing a plurality of operating supports with different shutter opening/ closing means and then operating each operating support depending on the insertion depth of a cartridge. CONSTITUTION:A pin 8 which is a shutter opening/closing means being engaged to a shutter of a cartridge 10 following insertion of the cartridge 10 is rotated in reference to a rotary support of a first lever 5 and the shutter is opened rapidly by an amount needed for passing through a spindle motor 6 until the spindle motor 6 is reached. Then, it is rotated in reference to an operation support 7 of a second lever and the remaining amount which is needed is opened until complete insertion. Operation which is opposite to it is performed when ejecting the cartridge, thus preventing the cartridge 10 and the spindle motor 6 from being interfered in either direction. Therefore, the title item can be thinly designed for achieving a compact and thin appearance.

Description

Detailed Description of the Invention [Industrial Application Field] The present invention relates to a shutter opening/closing method for opening and closing the shutter of a cartridge containing the information recording medium in an information recording apparatus having an information recording medium such as DD, FDD, HDD, etc. The present invention relates to a loading structure of an information recording device using means.

[Summary of the Invention] In the loading structure of the information recording device, the present invention first rotates the shutter opening/closing means around a first operating fulcrum according to the insertion depth of the cartridge, and then rotates the shutter opening/closing means around a first operating fulcrum, and then It is characterized by a structure that operates around an operating fulcrum.

[Prior Art] A loading structure of an information recording apparatus having a conventional structure will be explained in detail with reference to FIGS. 4 and 5.

4 is an assembled plan view, and FIG. 5 is a partially assembled side sectional view of FIG. 4. In all the figures, 1 is the main chassis of the information recording device, 2 is the bezel fixed to the main chassis,
As shown, it has a window through which the cartridge 10 can pass. A holder 3 is installed in the main chassis 1 to house the cartridge 10, and is movable up and down with respect to the main chassis 1 with a well-known structure while housing the cartridge 10. 4 is a shutter opening/closing lever, which is installed in the holder 3;
It is rotatable around the bottle 7 on the holder 3. Further, at the tip of the shutter opening/closing lever 4, there is provided a shutter opening/closing means that can be engaged with a well-known shutter (shown in FIG. 3, 11) for opening and closing the opening of the cartridge 10 (12 in FIG. 3). Bin 8 is fixed. Reference numeral 6 denotes a well-known spindle motor, which is composed of a spindle 6a and a spindle hub 6b. The operation will be explained.

When the user intends to use the information recording device, the user turns on the power of the information recording device, and inserts the cartridge 10 containing a well-known information recording medium into the information recording device from the left side of FIG. Insert it.

When the cartridge 10 reaches the position 10a, the bin 8 of the shutter opening/closing lever 4 provided on the holder 3 comes into engagement with the shutter of the cartridge 10. When the cartridge 10 is further inserted into the information recording apparatus from this state, the cartridge 10 eventually reaches the 10b position. Along with this insertion operation, the shutter opening/closing lever 4 also rotates around the bin 7 on the holder 3, and the shutter opening/closing means 8 moves to 8b. Therefore, the shutter 11 of the cartridge 10 is fully opened as shown in FIG. In this state, the cartridge 1o is completely inserted in a plan view. In the insertion process of the cartridge 0, as shown in FIG. 5, the cartridge 10 is installed at a height apart from the spindle motor 6, so that they are inserted smoothly without interference between them.

Thereafter, the cartridge 1o moves downward from the position 10b in FIG. Since it is fully open, it operates smoothly. After the clamping operation, well-known information recording and reproducing operations are performed.

After using the information recording device, when ejecting the cartridge 10 from the information recording device, the user operates an external operating member (not shown) to perform a known lifting operation of the holder 3. and the holder 3 is the fifth
Return to the position shown in the figure. Then, the information recording medium and the spindle motor 6 are disengaged, so the cartridge 10 becomes free, and a spring (not shown) that engages the shutter opening/closing lever 4 causes the cartridge 10 and the shutter opening/closing lever 4 return to the initial position. At this time, since the cartridge 10 is in the raised position shown in FIG. 5, it does not interfere with the spindle motor 6.

[Problems to be Solved by the Invention] In the loading structure of this conventional information recording apparatus, the shutter 1 of the cartridge and the tray 1o is gradually opened and closed by the shutter opening/closing lever 4, as described above. For this reason, the cartridge 10 is set at a position separated from the spindle motor 6 by a certain distance throughout the entire process from the initial state to the fully inserted state, as shown in FIG. This is to prevent height interference between the cartridge 10 and the spindle motor 6 when the cartridge is inserted, but in this conventional structure, the amount of insertion of the cartridge 10 and the shutter 11 of the cartridge The opening/closing amount is only a consideration for fully opening at the time of complete insertion. In this case, the information recording device is made thick to account for the height relief of the cartridge 1o with respect to the spindle motor 6, which is disadvantageous for its usability when installed in a portable information device. It became.

An object of the present invention is to provide a structure for reducing the size and thickness of the information recording device by eliminating the wasted space in terms of the height of the cartridge and spindle motor 6 when the cartridge is inserted. Means for Solving] The structure of the present invention is as follows: 1) The structure of the present invention is capable of being attached to the shutter of a cartridge/nozzle containing an information recording medium, and the shutter opening/closing means provided in the information recording device has a plurality of different operating fulcrums. , the cartridge is characterized in that it operates at each operating fulcrum depending on the depth of insertion of the cartridge.

2) the shutter opening/closing means is fixed to a first lever;
2. The loading structure for an information recording device according to claim 1, wherein the first lever is pivotally supported by a second lever, and the second lever is pivotally supported at a different position.

3) The loading structure for an information recording device according to claim 2, wherein the first lever and the second lever are respectively engaged with spring means having different initial forces.

It is characterized by

[Effect] The present invention has the above structure and operates as follows.

As the cartridge 1o is inserted, the shutter 11 of the cartridge is first engaged, and the bottle 8, which is the opening/closing means, rotates around the rotational fulcrum 9 of the first lever 5 until it reaches the spindle motor 6. The shutter 11 is rapidly opened by the amount necessary to pass the spindle motor 6. Thereafter, the second lever rotates around the operating fulcrum 7 and opens the remaining required amount until complete insertion.

When ejecting a cartridge, it works in the opposite way,
There is no opening where the cartridge 1o and the spindle motor 6 interfere in any direction.

[Example] An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an assembled plan view of main parts showing one embodiment of the present invention. FIG. 2 is a partially assembled side sectional view of FIG. 1. FIG. 3 shows a cartridge in which an information recording medium is housed, and as is well known, the cartridge includes a casing member, an information recording medium (not shown) inside the casing member, and an opening provided in a part of the casing member. 12, groove 12a connected to the opening 12
1 Consists of a shutter 11 that opens and closes the opening 12 and the groove 12a.

Reference numeral 1 denotes a main chassis of the information recording apparatus, in which a spindle motor 6, a bezel 2, a holder 3, etc., which will be described later, are arranged. A bezel 2 has a window through which the cartridge 10 can pass. Reference numeral 3 denotes a holder, which is movable up and down by a well-known structure at the illustrated position, can accommodate a cartridge 10, and has a bin 7 through which the first lever 5 and second lever 4 can be rotated. It is installed in

The bin 7 becomes the second operating fulcrum of the shutter opening/closing means 8. A spindle motor 6 is composed of a spindle 6a1 and a spindle hub 6b. Reference numeral 8 denotes a pin which serves as a najator opening/closing means that can be engaged with the shutter 11 of the cartridge 10 and is fixed to the tip of the first lever 5. Reference numeral 9 is a first operating fulcrum located at the tip of the second lever 4, which allows the first lever 5 to rotate relative to the second lever 4 around the bin 9.

The operation will be explained.

When a user of an information recording device uses the information recording device, he or she first turns on the power of the information recording device.

Thereafter, the cartridge 1o containing the information recording medium is inserted into the information recording apparatus from the left side in the figure. Immediately after insertion, the shutter 11 of the cartridge 1o engages with the bottle 8 of the shutter opening/closing means at the tip of the first lever 5 in the information recording apparatus, as shown in FIG. When the cartridge 10 is further inserted in this state, it engages with the first lever 5 and moves the first lever 5 into the second position.
While gradually increasing the initial force of a spring (not shown) that attempts to hold the lever 4 in the mutually spread position shown in FIG. As a result, it is displaced from the 53rd position to the 5b position. With this operation, the printer opening/closing means 8 opens the cartridge 1.
The shutter 11 of the cartridge 10a is opened to a position corresponding to the position of the cartridge 10a in FIG. This position is the first
As shown in the figure, it has a width sufficient not to interfere with the spindle 6a and spindle hub 6b. This operation is quickly accomplished up to the position 10a before the cartridge 1° reaches the spindle motor 6, as shown in FIG. This is because the straight line connecting the first operating fulcrum 9 of the first lever and the pin 8 of the shutter opening/closing means is very close to the vertical line in FIG. 1. This state is as shown in FIG. 2 in cross section, and the cartridge 1o and the spindle motor 6 are in a height relationship such that they would interfere if the shutter 11 was not opened, but as described above, As the spindle 11 is opened, the front spindle 6a of the spindle motor 6,
The spindle hub 6b can pass under the groove 12a connected to the opening 12 of the cartridge 10. In this way, the cartridge 10 passes smoothly over the spindle motor. On the other hand, when the first lever reaches the 5b position, the protrusion of the first lever 5 is in contact with the side surface of the second lever 4. Therefore, the first lever 5
cannot rotate independently any further.

When the cartridge 10 is further inserted toward the 10b position, the second lever 4 has a larger initial force than the return spring (not shown) of the first lever 5.
Against the force of a return spring (not shown), the second lever 4 unites with the first lever 5 using the pin 7 on the holder 3 as a second operating fulcrum as a rotational fulcrum. As the cartridge rotates, the first lever 5 reaches the 5C position at the same time as the cartridge 10 reaches the 10b position. In this position, the shutter opening/closing means 8 is connected to the shutter 11.
is completely opened, and the opening 12 of the cartridge 10 is exposed. Cartori.

The well-known lowering operation of the holder 3 is performed at the position 10b of the cartridge 10. Since the opening 12 of the cartridge 10 is exposed, the lowering operation is performed smoothly and the inside of the cartridge 10 is exposed. The information recording medium is positively engaged with the spindle motor 6.

After recording and reproducing information, when an external operating member (not shown) is operated, the cartridge 10 together with the holder 3 moves upward to position 10b in FIG. 2, and the information recording medium is moved to the spindle motor. Leaves from 6 and becomes free. Therefore, the spring force for returning the second lever 4 causes the second lever 4 to return to the initial position. When it exceeds this, the cartridge 10 also returns to the 10a position.

During this operation, the shutter 12 gradually closes (but even if the cartridge 10 in FIG. From this position, the first lever 5 is returned to the initial position by the return force of the spring that engages with the first lever 5. At the same time, the cartridge 10 is also ejected from the information recording apparatus.

As described above, this operation utilizes the return force of the weak spring that engages the first lever 5, so that the cartridge 1
0 ejection speed is suppressed, and the cartridge 10 does not protrude from the bezel 2 more than necessary.

[Effect of the invention] The present invention has the following effects due to the above structure and operation.

Since a plurality of operating fulcrums for the shutter opening/closing means are provided, the entire operating stroke can be divided into several parts, and the shutter opening/closing means can operate at each operating fulcrum according to the required operating locus. Therefore, compared to the conventional single operating fulcrum, the shutter opening/closing means can be operated with a complicated locus (in the present invention, two circular arcs of AS B), and some considerations are required for the shutter opening/closing means. It becomes possible to include. In the case of the present invention, as an example,
Two operating fulcrums are set, and the shutter 12 of the cartridge is configured to rapidly open at the first operating fulcrum, and the shutter 12 of the cartridge is opened by a necessary amount before reaching the spindle motor 6 so as not to interfere with the spindle motor 6. I took care to keep it that way. However, after passing through the spindle motor 6, rotation of the first lever using the same first operating fulcrum 9 becomes impossible due to frictional force, and from this point on, the shutter 11 of the cartridge 10 is moved to its final position. Since it is sufficient that the opening can be fully opened by then, the second operating fulcrum 7 is provided at a position suitable for this purpose. Further, in one embodiment of the present invention, when the cartridge 10 starts to be inserted, the shutter opening/closing means 8 needs to be reliably operated at the first operation fulcrum, so the first lever acting on the first lever 5 is It is also a component of the present invention that the return spring 5 is made smaller in its initial state than the initial force generated by the return spring of the second lever 4. By doing so, the above-mentioned operation can be ensured, and it is also possible to prevent the cartridge 10 from being accelerated more than necessary and jumping out from the bezel 2 more than necessary at the time of the above-described ejection. Further, the structure of the present invention is a rotary type with high operating efficiency, so the frictional load is small and the efficiency is high, and the insertion force of the cartridge 10 is not increased. The loading structure of the information recording device according to the structure of the present invention allows the above-mentioned considerations, so that the groove 12a connected to the opening 12 of the cartridge 10 can be adjusted to a height that does not interfere with the spindle motor 6, as shown in FIG. Since the cartridge 10 can be placed low, the information recording device can be designed to be several mm thinner than the conventional structure. This greatly contributes to the miniaturization and thinness of portable information devices. In one embodiment of the present invention, the number of operating fulcrums is two, but the number is not limited to this, and as long as there are two or more, it can be set as needed. Further, in this case, the same number of levers are required, but if the strength of the force is set in the return spring of the lever, it is possible to incorporate necessary functions with a complicated trajectory.

Furthermore, in one embodiment of the present invention, a rotary type using a plurality of levers and a plurality of rotational supports is described in detail, and some of the operating supports are linearly operated for linear movement in combination with well-known cam-shaped grooves. Even if the fulcrum is replaced with a -C configuration, the same effect as in the embodiment can be obtained, and this does not depart from the scope of the present invention.

[Brief explanation of the drawing]

Fig. 1 is an assembled plan view showing one embodiment of the present invention, Fig. 2 is a partial side sectional view of Fig. 1, Fig. 3 is an outer track view of the cartridge, and Fig. 4 is an assembled plan view showing a conventional structure. , FIG. 5 is a partial side sectional view of FIG. 4. 1: Main chassis 2: Bezel 3; Holder 5: First lever 8: Pin 9 of shutter opening/closing means: First operating fulcrum 10: Cartridge 11: Cartridge shutter 12: Cartridge opening 12a: At the cartridge opening Applicant in a connected state of mind Seiko Epson Co., Ltd. agent Patent attorney Kisanbu Meiki et al. - Name b Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Scope of Claims] 1) The shutter opening/closing means provided in the information recording device is capable of engaging with the shutter of the cartridge containing the information recording medium, and has a plurality of different operating fulcrums, and the shutter opening/closing means provided in the information recording device has a plurality of different operating fulcrums, A loading structure for an information recording device, characterized in that it operates at each operating fulcrum according to the following. 2) the shutter opening/closing means is fixed to a first lever;
2. The loading structure for an information recording device according to claim 1, wherein the first lever is pivotally supported by a second lever, and the second lever is pivotally supported at a different position. 3) The loading structure for an information recording device according to claim 2, wherein the first lever and the second lever are respectively engaged with spring means having different initial forces.