JP2001164736A - Device fixing structure and its device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device fixing structure and its device promoting workability when the installation work of the device is carried out for a floor fixing structure for the device resisting an earthquake. SOLUTION: A saucer 18 fixed to a stand 20 through a free access floor 4 forms a horizontal gutter between a projection 17 around the saucer and the free access floor 4. After a device 1 is conveyed on the saucer 18, the vertical ends of an L-skirt 15 are respectively clamped to a frame 10 of the device 1 after a horizontal section of the L-skirt 15 covering the circumference of the lower part of the device 1 is inserted in the horizontal gutter from the circumference of the saucer 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant structure for preventing a device from falling and moving due to a disturbance such as an earthquake.
In particular, the present invention relates to a device fixing structure having good workability during installation work of the device and the device.

[0002]

2. Description of the Related Art In a device constituting an electronic computer such as a magnetic disk device and a magnetic tape device, the larger the storage capacity per unit area of the projected floor area of the device, the more effectively the floor area of the room can be utilized. On the other hand, in order to prevent the equipment from collapsing due to an earthquake, the equipment is provided with an earthquake countermeasure.
A typical earthquake countermeasure method is to machine female threads on the base frame provided on the bottom of the equipment, install a mediating member consisting of steel frame etc. in the space between the free access floor and the building foundation, and install the free access floor. The intermediate member and the base frame of the device are fixed by screws via the intermediary member. In addition, a skirt-shaped plate is attached around the bottom of the device to provide design considerations and prevent leakage of cooling air taken into the device from under the floor for underfloor air conditioning.

FIG. 4 is a longitudinal sectional view showing an example of the structure of a device provided with the above-described earthquake countermeasures. The frame 10 is a basic frame that constitutes the device 1 and has a welding nut 5 welded to a position where a female thread is machined. A steel base 7 is fixed on the building floor 9 by anchor bolts 8. The frame 10 and the base 7 are fastened by bolts 6 penetrating the free access floor 4 and the base 7 via spacers 26. The four sides of the frame 10 are covered by a skirt 2 attached to the frame 10 by screws 3. The installation procedure of the device 1 is as follows. The base 7 is fixed on the building floor 9 and the device 1 and the base 7 are fixed by bolts 6.
And the skirt 2 is attached to the frame 10. This method has a drawback in that positioning when fastening the apparatus 1 and the stand 7 and fastening work from below the floor surface become a bottleneck, and a great deal of time and cost is required for installation work of the apparatus 1.

Another anti-earthquake countermeasure method is to fix an angle-shaped overturn prevention member to a base frame of the apparatus and fasten the overturn prevention member and the above-mentioned intermediate member by bolts via a free access floor. . FIG. 5 is a longitudinal sectional view showing another example of the structure of the device. Frame 1 of device 1
An L-bracket 11 having its horizontal portion directed to the outside of the apparatus is fastened to 0 by screws 12. L fittings 11 and building floor 9
Is fixed by the bolts 13 penetrating the L bracket 11, the free access floor 4, and the base 14. The installation procedure of the device 1 is as follows. The base 14 is fixed on the building floor 9, the L bracket 11 is fastened and fixed to the device 1 with the screw 12, and the horizontal part of the L bracket 11 protruding outside the device 1 is free with the bolt 13. Table 14 via access floor 4
Is to conclude. Also in this method, since the L fitting 11 and the base 14 must be fastened after the apparatus 1 is carried in, a large amount of time and cost are required for installation work. In addition, there is a problem that the projected area of the installation floor increases, the storage capacity per unit area occupied by the device decreases, and the floor area cannot be used effectively.

[0005]

As described above, the conventional device fixing structure has a problem in workability of installation work of the device, and it takes a long time.

An object of the present invention is to provide a device fixing structure with good workability and a device therefor.

[0007]

SUMMARY OF THE INVENTION The present invention is directed to a member fixed to the floor having a protrusion formed below the apparatus and having a horizontal groove formed around the member, and an L-shaped member having an L-shaped cross section. An L-shaped member, the vertical end of which covers the lower part of the device and is fastened to the base frame of the device, and the horizontal part directed towards the inside of the device is adapted to be inserted into the horizontal groove of said member It features a fixed structure.

According to another aspect of the present invention, there is provided an apparatus fixed to a floor, wherein a vertical frame end of an L-shaped member having an L-shaped cross section is fastened to a base frame of the apparatus so as to cover a lower portion of the apparatus. Characterized in that the horizontal part of the L-shaped member facing the inside of the member is fixed to the floor and is adapted to be inserted into the horizontal groove of the member forming the horizontal groove from the periphery thereof.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be specifically described below with reference to the drawings.

FIG. 1 is a longitudinal sectional view showing an example of the structure of the device of the present embodiment. A steel base 20 is fixed on the building floor 9 by anchor bolts 8. A tray 18 is disposed on the platform 20 via the free access floor 4, and the tray 18 is fastened to the platform 20 via the free access floor 4 by bolts 13 penetrating the tray 18, the free access floor 4 and the platform 20. ing. Reference numeral 19 denotes a hole which penetrates the tray 18, the free access floor 4 and the table 20, and
And an inlet for cooling air for underfloor air conditioning. Vertical ends of an L skirt 15 which is divided in four directions with the horizontal portion facing the inside of the apparatus are attached to four sides of the frame 10 in front, rear, left and right by bolts 11. Four insertion portions 16, which are horizontal portions of the L skirt 15, are inserted under the protrusions 17 which are the outer edges of the receiving tray 18 on both sides and have a step 24 with the free access floor 4.

FIG. 2 is a perspective view of the tray 18. The tray 18 is a rectangular plate having a hole 19, the outer edge of which forms a projection 17 extending in four directions, and the inner portion thereof is a portion serving as a bottom 25 in contact with the free access floor 4. The hole 23 is a hole for passing the bolt 13. Step 2
4 is a step inside the tray 18 between the upper horizontal plane of the protrusion 17 and the upper horizontal plane of the bottom 25, and has the same size as the step 24 outside the tray 18 shown in FIG. Projection 17
Are arranged so as to form horizontal grooves from four directions with the surface of the free access floor 4.

The installation procedure of the apparatus 1 is as follows. The table 20 is fixed on the building floor 9, the tray 18 is fastened and fixed on the table 20 via the free access floor 4 by bolts 13, and the apparatus 1 is placed on the tray 18. L skirt 15 from all sides after loading
Then, the insertion portion 16 of the L skirt 15 is inserted under the protrusion 17 of the tray 18 and the vertical end of the L skirt 15 is fixed to the frame 10 with the bolt 11. After the apparatus 1 is installed in this manner, the apparatus 1 is restrained vertically, horizontally, and back and forth by the tray 18, so that the apparatus 1 is prevented from falling or moving due to disturbance such as an earthquake.

Next, the relationship between the means for moving to the installation location for installing the apparatus 1 and the apparatus fixing structure will be described.
FIG. 3 is a longitudinal sectional view of the floor of the device overturn prevention structure. Casters 27 are attached to the four corners of the frame 10 of the device 1 so that the device 1 can be moved to just above the tray 18 at the installation location. 15-1 and 15-2 are a longer L skirt 15 and a shorter L skirt 1, respectively.
5 is shown. If a gap 28 is formed between the projection 17 of the tray 18 and the caster 27, the device 1 can be placed on the tray 18 while moving in the direction of the arrow 29. The casters 27 include a fixed type that can move in only one direction and a revolving type that allows the wheel shaft to rotate. In either case, if the gap 28 can be secured, the device 1 can be moved and installed. In the device fixing structure of the present embodiment, the mounting position of the casters 27 is not limited in the direction of the arrow 29 as compared with the structure of FIG. Therefore, when the caster 27 is attached to the apparatus 1, the caster 27 is positioned so as not to collide with the pan 18 and the arrow 29.
In this direction, the device 1 may be mounted at a position where the device 1 can be stably moved.

According to the present embodiment, the tray 18 is
However, since the operation can be performed before the apparatus 1 is moved to the installation place, the workability is remarkably improved.
After the apparatus 1 is carried into the installation place, the insertion section 16 of the L skirt 15 is simply inserted under the projection 17 of the receiving plate 18 and the L skirt 15 is fixed to the frame 10 from the outside. Becomes

The difficulty of overturning of the apparatus is determined by the angle between the vertical line and the straight line connecting the center of gravity of the apparatus and the center point where the member for preventing overturning intersects with the floor surface. . In the device fixing structure shown in FIGS. 1, 4 and 5, when the external dimensions, the position of the center of gravity and the weight of the device 1 are the same, the magnitude of the overturning angle is in the order of FIGS. On the other hand, the storage capacity per unit area can be expressed in GB / m ² with respect to the installation floor projected area of the device. GB (gigabyte) is a unit of storage capacity of the device. The storage capacity per unit installation floor projected area is almost the same in FIGS. 1 and 4 and small in FIG.

As described above, it is understood that the present invention is very effective when comprehensively judged from the ease of installation work, the overturning angle and the storage capacity per unit floor area.

The receiving tray 18 is not limited to a rectangular member, but may have a shape corresponding to the planar shape of the apparatus 1. In addition, instead of forming a horizontal groove between the free access floor 4 and the protruding portion 17 of the tray 18, a member in which the tray 18 itself has a horizontal groove around it may be used separately from the free access floor 4. Furthermore, as long as the receiving tray 18 can be fastened to the floor, it is not limited to the free access floor, and the hole 19 is not essential. Further, the tray 18 and the table 20 may be integrally formed without interposing the free access floor 4 between the tray 18 and the table 20.

[0018]

As described above, according to the present invention, the workability of the installation work of the device for earthquake resistance can be improved, and the installation work can be performed in a short time and at low cost. Also, a good fall angle and a storage capacity per unit floor area can be maintained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a device overturn prevention structure according to an embodiment.

FIG. 2 is a perspective view of a receiving tray 18 according to the embodiment.

FIG. 3 is a cross-sectional view of the floor of the device overturn prevention structure of the embodiment.

FIG. 4 is a longitudinal sectional view showing an example of a conventional device fixing structure.

FIG. 5 is a longitudinal sectional view showing an example of another conventional device fixing structure.

[Explanation of symbols]

1 equipment, 4 raised floors, 10 frames, 1
5 L skirt, 16 insertion part, 17 protrusion, 18
Saucer, 20 units, 24 steps

 ──────────────────────────────────────────────────の Continued on the front page (72) Kenichi Tateyama 2880 Kozu, Odawara City, Kanagawa Prefecture Inside Hitachi Computer Equipment Co., Ltd. (72) Akira Yamanashi 2880 Kozu, Kofu, Odawara City, Kanagawa Prefecture Storage System Business, Hitachi, Ltd. Inside

Claims (5)

[Claims] 1. A structure for fixing an apparatus to a floor, a member having a horizontal groove formed around the apparatus and having a protrusion disposed under the apparatus and fixed to the floor, and an L-shaped section having an L-shaped cross section. An L-shaped member having a vertical end covering a lower portion of the device fastened to a base frame of the device, and a horizontal portion directed toward the inside of the device inserted into the horizontal groove. And a device fixing structure. 2. The apparatus fixing structure according to claim 1, wherein said member is fixed to a trapezoidal member fastened to a building floor via a free access floor. 3. A structure for fixing an apparatus to a floor, wherein a horizontal groove is formed in four directions and a projection is disposed below the apparatus, the member is fixed to the floor, and four sides of the projection are L-shaped members each having a corresponding L-shaped cross-section, wherein the ends of the vertical portions of the respective L-shaped members are fastened to four sides of a base frame of the device, and the horizontal portions directed toward the inside of the device have the corresponding horizontal portions. An L-shaped member configured to be inserted into each of the grooves. 4. An apparatus fixed to a floor, wherein a vertical end of an L-shaped member having an L-shaped cross section is fastened to a base frame of the apparatus so as to cover a lower portion of the apparatus. An apparatus wherein the horizontal portion of the inwardly directed L-shaped member is secured to the floor and configured to be inserted into the horizontal groove of the member forming a horizontal groove from the periphery thereof. 5. An apparatus fixed to a floor, wherein each of four sides of a base frame of the apparatus has an L-shaped cross section.
The vertical portion ends of the L-shaped members are fastened, and the horizontal portion of each L-shaped member directed toward the inside of the device is fixed to the floor and is configured to be inserted into the corresponding horizontal groove of the quadrilateral member forming the horizontal groove. Characteristic device.