JPH0456194A - Mounting structure of replacement unit in electronic equipment - Google Patents

Abstract

PURPOSE:To enable replacement operation to be made easily by forming a guide groove on a side surface of a chassis, engaging a part to be guided to a guide groove, and then fixing the edge part for regulating the slide of the replacement unit. CONSTITUTION:Guide grooves 11, 11,... and 11',... are formed on side plates 10, 10' of a chassis 9 and these guide grooves 11, 11,... and 11, 11',... are engaged to spindles to be guided 5, 5,... of a side surface part of a drive unit separately, thus enabling the drive unit to be supported to the chassis 9 and specific ones of the spindles to be guided 5, 5,... to be fixed from a side part of the chassis 9 by a fixing member 13 for regulating move of the drive unit. When replacing the drive unit, only one side panel 8 may be removed, thus securing sufficient operation space for wiring.

Description

DETAILED DESCRIPTION OF THE INVENTION A mounting structure for a replacement unit in an electronic device of the present invention will be described in accordance with the following items.

A. Industrial field of application B3 Summary of the invention C1 Prior art [Fig. 6 D0 Problems to be solved by the invention 51 Means for solving the problems F. Embodiments [Figs. 1 to 5 Co a, Appearance [Fig. 1, Fig. 2] b. Drive unit mounting structure [Fig. 1, Fig. 3, Fig. 4] b-1 Guided shaft [Fig. 1, Fig. 3, Fig. 4] b- 2. Chassis [Figures 3 and 4] b-3 Fixing member [Figures 3 and 4] b-4. Attachment of drive unit C, replacement of unit [FIG. 5] d Effect G0 Effect of the invention (A Field of industrial application) The present invention relates to a structure for attaching a replacement unit in a new electronic device. Specifically, in an electronic device in which a part of the device's functions is made into a unit, this unit can be inserted and removed from the front of the device, and the scale can be expanded or the function can be changed by replacing the unit. By devising the unit mounting structure, it is possible to improve the efficiency of unit replacement work, and it can be applied to, for example, an expandable magnetic disk drive device connected to a computer.

(B. Summary of the Invention) The present invention has a replaceable unit installed inside the device so that the device can be expanded in size or changed in function by replacing the replaceable unit through the insertion/removal port formed on the front panel of the device. This is a mounting structure for a replacement unit in an electronic device including a chassis defining a housing space for the replacement unit, the replacement unit having a guided portion provided on a side surface thereof, and a guide provided on the side surface of the chassis to guide the guided portion. By forming a groove and engaging the guided part with the guide groove, the end of the groove is fixed from the side of the chassis by a fixing member to restrict the sliding of the replacement unit. This is intended to streamline the replacement work by allowing the replacement unit to be replaced as soon as the replacement unit is removed.

(C, Prior Art) [Figure 6] When it comes to magnetic disk drives, etc. as peripheral devices for personal computers, there are situations where you want to add more disk drive units after purchase or use floppy disk drive units of different sizes. There is something to know.

For example, assuming that one drive unit is to be replaced with two drive units, in the conventional apparatus, the drive unit is replaced by the procedure shown in FIG.

First, in the magnetic disk drive device a, as shown in FIG.
As shown in A), remove the cover b with the integrated front part.

Although a disk cassette insertion/ejection opening C is formed in the front face of the cover b, the one drive unit d1 cannot be extracted from the main body e of the apparatus a through this insertion/ejection opening C.

In other words, unless cover b is removed from main body e, 1
The drive unit d1 cannot be taken out from the main body e.

After removing the cover b from the main body part e, it will be necessary to remove the first drive unit d1, as shown in Fig. 6(B).
As shown in , first, the L-shaped metal fittings gXg, . . . fixed to the main body portion e with screws f, f, . . . must be removed.

In other words, guided shafts, h, .
. . by engaging with the U-shaped grooves j, j, . . . of the guide channel portion 111, . The receiver is slidably inserted into the housing space of the receiver.

1. Before removing the drive unit d1 from the main body part e, one end of each of the L-shaped fittings g, g, .
It is attached to the main body part e in such a way that it is inserted into the end of the drive unit d.
1 is restricted from sliding in the direction of taking it out from the main body part e.

Therefore, first, it is necessary to remove the screws f, f, ... and the L-shaped fittings g, g, ... from the channel parts i, i, ..., and then remove the 1 drive unit d, By sliding the drive unit d1 forward and pulling it out, the first drive unit d1 is taken out of the housing space.

When attaching the second drive unit d2 to the main body e, the procedure for removing the first drive unit d1 described above may be completely reversed.

That is, as shown in FIG. 6(C), the second drive unit d2, which has the same shape as the first drive unit d1, has guided shafts h', h' on the longitudinal side surfaces, like the first drive unit d1. ... are provided, and these are called channel parts i, i.

After pushing the second drive unit d2 into the housing space while engaged with the two drive units d2, insert the ends of the L-shaped fittings g, g, .
It is sufficient to insert them into the U-shaped grooves J, j, . . . and fix them to the main body e with screws f, f, .

After completing the predetermined wiring work for the two-drive unit d2, the cover b is attached to the main body e again, thereby completing the series of work.

(D. Invention or problem to be solved) By the way, in the device a as described above, there is a problem that in order to replace the drive unit, the cover b including the front part must be removed, which is a cumbersome work. There is.

That is, the reason why the front part and the side part of the cover b are physically formed is to secure a working space for the wiring related to the drive unit.

In other words, if the front part is separated from the other parts in the cover b, and only the front part can be removed from the main body part e when replacing the drive unit, the mechanical attachment of the drive unit to the main body part e will be from the front part. Is it possible to do this by simply removing the ? In this case, the wiring work can only be done through the accommodation space k, which is inefficient.

Therefore, the cover b including the front and side parts must be removed.

However, due to drive unit replacement work,
It is inefficient to have to remove the cover b that covers most of the main body part e.

In addition, since insertion holes for displays and switches are often provided on the front surface, the insertion holes must be aligned each time the cover is installed, which is a very cumbersome task. becomes.

(E. Means for Solving the Problems) Therefore, in order to solve the above-mentioned problems, the mounting structure of the replacement unit in the electronic device of the present invention is arranged in the housing space defined by the chassis in the device. A mounting structure for a replaceable unit in an electronic device that allows expansion of scale or change of function by replacing the replaceable unit with another replaceable unit through an insertion/removal port formed on the front panel. A guided portion is provided on the side surface of the chassis, and a guide groove for guiding the guided portion is formed on the side surface of the chassis, and after the guided portion is engaged with the guide groove, its end is fixed to the chassis by a fixing member. It is fixed from the side to restrict sliding of the replacement unit.

Therefore, according to the present invention, the replacement unit is slidably supported with respect to the chassis by engaging the guided portion of the replacement unit with the guide groove of the chassis, and the end portion of the guided portion is held by the fixing member. Since the replacement unit can be housed within the housing space by being fixed on the side surface of the chassis, the replacement unit can be replaced without removing the front panel of the device.

In other words, by removing the side plate or a part of the side plate of the device, it is possible to replace the unit with sufficient work space, and work efficiency is improved.

(F. Embodiment) [FIGS. 1 to 5] Below, details of the mounting structure of the replacement unit in the electronic device of the present invention will be described according to the illustrated embodiment. The illustrated embodiment shows an example in which the present invention is applied to a magnetic disk drive device.

(a, external appearance) [Fig. 1, Fig. 2] 1 is a magnetic disk drive device.

Reference numeral 2 denotes a front panel, and an insertion/removal opening 3 for a drive unit is formed from the center of the front surface to a portion near the right corner.

A plurality of notches 3a, 3a, . are formed at predetermined intervals, and these notches 3a, 3a, .
...and 3b, 3b.

Among them, those with the same height form a pair.

4□ is rectangular and has a negative cassette insertion/removal port 4.
In FIG. 1, it is shown taken out of the device.

42 is a 2-drive unit having two cassette insertion/ejection ports 4a, 4a, and is different from the above-mentioned 1-drive unit 4.
It has the same shape as , and is shown in a state housed in the device in FIG.

Guided shafts 5.5, . . . are screwed to the left and right side surfaces of the drive units 41 and 42 in two rows, upper and lower, at predetermined intervals in the longitudinal direction.

And 1 drive unit 4. When installing the front panel 2 into the device 1, this work can be done without having to remove the front panel 2.

That is, when storing the 1st drive unit 41 above the 2nd drive unit 42 already installed in the apparatus 1, the rear end (hereinafter, the side where the cassette insertion/ejection opening 4a is located) of the 1st drive unit 41 is The side opposite to this is called the "front end" and the opposite side is called the "rear end.") While inserting into the insertion/removal port 3 of the front panel 2 from the side, the guided shafts 5.5, . ...and 3b, 3b.

If you push the IF live unit 4□ into the disk drive device 1 while passing it through...,
Finally, one drive unit 4 is installed in the housing space 6 inside the device.
It has become difficult to pay 1.

7 is a top plate of the magnetic disk drive apparatus 1, and 8 is a right side plate when viewed from the front of the apparatus 1, so that only the right side plate 8 can be removed without removing the top plate 7.

(b, Drive unit mounting structure) [Figure 1, Figure 3, Figure 4 (b-1, Guided shaft) [Figure 1, Figure 3, Figure 4] Side part of drive unit 41% 42 The guided shaft 5 provided in the head portion 5 has a circular head portion 5a, a cylindrical guided portion 5b with a smaller diameter, and a guided portion 5b.
A threaded portion 5c having an even smaller diameter is integrally formed.

There are screw holes 4b and 4 on the side of the drive unit 41.4□.
b,... are formed, and these screw holes 4b, 4b,...
. . . guided shaft 5.5, threaded portions 5c, 5c,
... are screwed together, the guided shafts 5.5,
... are attached to the drive units 4□, 42.

(b-2, Chassis) [Figures 3 and 4] Figure 3 shows the main part of the internal structure of the magnetic disk drive device 1, that is, the metal chassis 9 that defines the housing space 6. .

Reference numerals 10 and 10' denote side plates of the chassis 9, which are arranged parallel to each other at intervals slightly larger than the widths of the drive units 41t and 42, and their front ends are bent at a substantially right angle facing in opposite directions. bent portion 10a,
10'a is formed. Note that 10 is the right side plate when viewed from the front of the device, and 10' is the left side plate.

11.11, . . . are guide grooves formed in the right side plate 10; 11', . . . are guide grooves formed in the left side plate 10', and among these guide grooves, those formed at the same height form a pair to guide the drive units 4, 42, etc.
are provided to guide the guided shafts 5.5, . That is, the guide grooves 11.11, . . . and 11.
11', . . . extend rearward from the front edge of the side plate at appropriate intervals in the vertical direction of the side plate 10, 10', respectively.
Portions 11a and ll formed in bent portions 10a and 10'a
a, . . . and 11'a, 11 a, . . . are the introduction portions of the guided shafts 5.5, .

The bent portion 10 of the guide groove formed in the side plate portion
The grooves 11b111b1, 11'b, 11'b, . , 11c, ... and 11'c,
11'c, . . . have a constant groove width and are slightly wider than the diameter of the guided portion 5b of the guided shaft 5.

12.12 has receiving pieces, which are formed integrally with the right side plate 10 at the upper and lower edges of the right side plate 10 near the bent portion 10a, and the centers of these receiving pieces 12.12 are screwed. Holes 12a, 12a are formed.

(b-3 Fixing member) [Figures 3 and 4] 13 is a channel-shaped fixing member, and its bent portions 13a, 13a
Circular holes 14, 14, . . . are formed at appropriate intervals in the back portion 13b, which is wider than the rear portion 13b.

The diameter of these circular holes 14, 14, . . . is slightly larger than the outer diameter of the heads 5a, 5a, . . . of the guided shafts 5, 5, .

Reference numeral 15.15 indicates an insertion hole, which is formed at a position near both ends in the longitudinal direction of the back portion 13b, and the distance between the two is as follows.
The spacing is equal to the distance between the screw holes 12a of the receiving piece 12.12.

16.16 are mounting screws for fixing the fixing member 13 to the receiving piece 12.12, and these screws are inserted into the screw holes 12a, 12 of the receiving piece 12.12 through the insertion hole 15.15 of the fixing member 13.
a, respectively.

(b-4, Installation of drive unit) Therefore, 1 drive unit 4. In order to accommodate the drive unit 4 in the accommodation space 6, first insert the drive unit 4 from its rear end into the accommodation space 6 at a predetermined height, and then insert the drive unit 4 from its rear end into the accommodation space 6 at a predetermined height. into the guide grooves 11.11 and 11', 11'. At this time, the tapered parts flb and Il'b of the guide groove connect the guided parts 5b and 5b of the guided shaft 5.5 to the groove parts tic and 11'C.
It plays a guiding role when introducing the system. Moreover, the portions 11a, lla, formed in the bent portions 10a, 10'a,
Il'a, ll'a serve to pass through the heads 5a, 5a, .

Then, when the drive unit 4□ is pushed backward, the guided parts 5b, 5b, . . .
, 11c1 . . . and 11'c, 11'c, .

In this state, insert the circular holes 14.14, . . . of the fixing member 13 into the heads 5a, 5a, . . . of the guided shafts 5.5, . Fit it on the outside,
The fixing member 13 is attached to the right side plate 1 with the mounting screws 16.16.
Fixed to 0.

Since the drive unit 41 is restricted from moving forward by the fixing member 13, it can no longer slide forward or backward, and its position is defined.

In this way, the drive unit 41 is finally installed in the chassis 9.
can be attached to.

(c. Replacing the unit @) [Fig. 5] The procedure for replacing the drive unit will be explained with reference to Fig. 5.

The premise of the explanation is that the first drive unit 41 and the second drive unit 42 are housed in the housing space 6 as shown in FIG. 5(A), and the first drive unit 4.
Assume that the 2-drive unit 42' is replaced with a new 2-drive unit 42'.

First, when the right side plate 8 of the magnetic disk drive device 1 is removed, the right side plate 1 of the chassis 9 is removed as shown in FIG. 5(A).
0 appears.

Then, as shown in Fig. 5(B), the mounting screw 16.1
6, the fixing member 13 is removed from the chassis 9.

This allows the drive unit 41 to slide relative to the chassis 9, so that the drive unit 4. Pull it forward a little.

In FIG. 5(C), drive unit 4. The front half of the guided shafts 5.5, . Appears outside the device through.

In this state, the wiring such as a connector provided at the rear end of the drive unit 4□ for electrical connection with a circuit board (not shown) of the device 1 is removed.

As a result, the drive unit 41 is completely separated from the device 1, so the drive unit 4 is further pulled out and removed from the accommodation space 6.

When storing the 2-drive unit 42', the procedure can be completely reversed.

That is, as shown in FIG. 5(D), insert the two-drive unit 42' through the insertion/removal port 3 from its rear end,
Of the guided shafts 5.5, .
2. Slide the drive unit 42' until it is located at the rear end or in the middle of the accommodation space 6.

In this state, after wiring the device to the main body,
2. Slide the drive unit 42' until it cannot be pushed back any further.

Then, the circular holes 14.14, .
After externally fitting the fixing member 13 onto the receiving pieces 12.12 using mounting screws 16.16.

Finally, the work is completed by returning the right side plate 8 to its original position.

(d. Effect) In the magnetic disk drive device 1 described above, the side plates 10, 10' of the chassis 9 that define the housing space 6 are provided with guide grooves 11, 11, . . .
・The guided shafts 5.5, . . . attached to the side surface of the drive unit are respectively engaged with these guide grooves 11, 11, . By aligning the drive unit with the chassis 9, the fixed member 13 supports the guided shaft 5.5.
, . . . are fixed from the sides of the chassis 9 to restrict movement of the drive unit.

Therefore, when replacing the drive unit, the work can be done simply by removing the negative side plate 8, and a sufficient working space for wiring can be secured.

(G. Effects of the Invention) As is clear from the above description, the mounting structure of the replacement unit in the electronic device of the present invention allows the replacement unit placed in the housing space defined by the chassis in the device to This is a mounting structure for a replacement unit in an electronic device that allows expansion of scale or change of function by replacing the unit with another replacement unit through an insertion/ejection opening formed on the front panel. In addition to providing a guided portion, a guide groove for guiding the guided portion is formed on the side surface of the chassis, and after the guided portion is engaged with the guide groove, its end portion is fixed from the side of the chassis by a fixing member. The present invention is characterized in that the sliding movement of the exchange unit is regulated.

Therefore, according to the present invention, the replacement unit is slidably supported with respect to the chassis by engaging the guided portion of the replacement unit with the guide groove of the chassis, and the end portion of the guided portion is held by the fixing member. Since the replacement unit can be stored in the housing space by being fixed on the side of the chassis, the replacement unit can be replaced without removing the front panel of the device.

It should be noted that the specific shapes and structures shown in the above embodiments are merely examples of embodying the present invention, and the technical scope of the present invention should not be construed as limited by these. It won't happen. Further, the present invention is of course applicable not only to magnetic disk drive devices, but also to various devices that are designed so that a part of the device functions can be made into a unit and can be replaced.

[Brief explanation of the drawing]

1 to 5 show an example of the mounting structure of the replaceable unit in the electronic device of the present invention, in which FIG. 1 is a perspective view, FIG. 2 is a schematic front view, and FIG. 3 is a view showing how the drive unit is accommodated. Partially showing the chassis that defines the space, (A) is a partially cutaway enlarged perspective view of the main part showing the state where the drive unit is not installed, and (B) is the state where the drive unit is in the middle of installation. FIG. 4 is an enlarged partially cutaway perspective view of the main part shown in FIG.
The figure is a schematic perspective view showing the drive unit replacement procedure in order from (A) to (D), and FIG. 6 is a schematic diagram showing the drive unit replacement procedure in the conventional example in order from (A) to (C). FIG. Explanation of symbols 1...Electronic device, 2 3...Insertion/removal port, 4r, 42.42...5...Guided part, 6...Accommodation space, 9 11.11'...Guy 13...Fixing member...Front panel, -Replacement unit, 5a...End,...Chassis, Door groove, Part of electronic equipment Part of the main part of the end part is enlarged from P view (, 4) a Part of the main part of the end part g

Claims (1)

[Claims] Expanding the scale or changing the function by replacing the exchange unit placed in the storage space defined by the chassis in the device with another exchange unit through the insertion/removal opening formed in the front panel. This is a mounting structure for a replaceable unit in an electronic device, in which a guided portion is provided on a side surface of the replaceable unit, and a guide groove for guiding the guided portion is formed on a side surface of a chassis. , a replaceable unit in an electronic device characterized in that after the guided portion is engaged with the guide groove, the end portion thereof is fixed from the side of the chassis by a fixing member to restrict sliding of the replaceable unit. Mounting structure