JP4485088B2 - Installation foot device and structure to be installed with the device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an installation foot device, and more particularly to an installation foot device for installing an electronic device housing structure such as a rack and a cabinet on a floor of a building.
[0002]
It is desirable that the installation footrest device for installing the rack on the floor has a structure that facilitates the work of installing the rack and a structure in which earthquake countermeasures are taken.
[0003]
[Prior art]
1A and 1B show a conventional installation foot device 10. The installation foot device 10 is configured by a receiving member 11 and a leg member 15. The receiving member 11 has a dish shape, and has a concave portion 13 surrounded by an annular wall portion 12 on the upper surface, and is placed on a floor surface 30 of the building. The annular wall portion 12 is formed to prevent the leg member 15 from being detached from the receiving member 11. The leg member 15 has a bolt part 16, a flange part 17, and a leg part 18 in order from the top. A bolt 19 is screwed with a nut 19 for preventing loosening.
[0004]
The rack 20 is fixed by welding nuts 21 at the four corners of the bottom surface.
[0005]
The bolt part 16 of the leg member 15 is screwed into the nut 21, and the receiving member 11 on the floor 30 of the building receives the leg part 18.
[0006]
A total of four installation foot devices 10 are used, one for each corner of the rack 20.
[0007]
The rack 20 is installed on the floor 30 of the building as follows. First, the caster (not shown) provided on the bottom surface is used to move to the place where the rack 20 is installed, the jack 20 (not shown) is used to push up the rack 20, and the bolt portion 16 of the leg member 15 is moved. Screw the nut 21, place the receiving member 11 on the floor surface 30, operate the jack (not shown), lower the rack 20, make the leg 18 press against the receiving member 11, and finally, A tool (not shown) is fitted into the flange 17 and the leg member 15 is appropriately rotated to adjust the height.
[0008]
[Problems to be solved by the invention]
In order to stably install the rack 20, it is necessary for the four installation foot devices 10 that the leg portion 18 is located at the center of the recess 13 as shown in FIG. However, since there is no mechanism for determining the position of the leg 18 in the center of the recess 13, it takes time and effort to determine the position of the leg 18 in the center of the recess 13 for all of the four installation foot devices 10. It was necessary.
[0009]
Further, in the event of an earthquake, the structure is configured such that the vibration of the earthquake is prevented from being transmitted to the rack 20 by sliding the leg portion 18 in the recess 13, but the earthquake resistance is not sufficient.
[0010]
Moreover, since the leg part 18 is not restrained, there was a possibility that the rack 20 might fall down in the event of an earthquake.
[0011]
In addition, when the rack 20 is moved largely by sliding and moving in the recess 13, the cable extending from the floor to the rack 20 extends or breaks, or the rack 20 is adjacent to the rack 20. There was also a risk of inconveniences such as crashes.
[0012]
Further, when the rack 20 moves, a troublesome adjustment work for returning the leg portion 18 to the center of the recess 13 is necessary.
[0013]
Then, an object of this invention is to provide the installation footrest apparatus which solved the said subject.
[0014]
[Means for Solving the Problems]
The invention of claim 1 has a threaded portion on the outer peripheral surface, and a receiving member that receives the load of the installation structure;
A mat that is provided on the lower surface of the receiving member, has a property of absorbing vibration, has adhesiveness, and can be peeled off from the installation surface;
Screwed into the threaded portion of the receiving member, provided on the outer peripheral side of the receiving member, and rotated so that the bottom surface is located below the bottom surface of the mat and the bottom surface is located above the bottom surface of the mat. An annular installation screw member that is moved up and down between,
Before use, the bottom surface of the annular installation screw member is at a position below the lower surface of the mat, and in use, the bottom surface of the annular installation screw member is at a position above the lower surface of the mat, The mat adheres to the installation surface.
[0015]
When the mat adheres to the installation surface, the installation structure can be fixed to the installation surface without making a hole in the installation surface. In addition, by sticking the mat to the installation surface, it is possible to prevent the installation structure from moving on the installation surface during an earthquake and to prevent the installation structure from falling down.
[0016]
Since the annular installation screw member moves up and down by the screw mechanism by rotating the annular installation screw member, the annular installation screw member hits the installation surface and the mat floats from the installation surface And a state where the mat is pressed against the installation surface can be easily obtained. Therefore, it is easy to install the installation structure.
[0017]
The mat can be peeled off from the installation surface, and the annular installation screw member is rotated so that the annular installation screw member is moved downward by the screw mechanism. Since the mat is peeled off from the installation surface by being pushed up relatively from the installation surface, it is easy to change the installation position of the structure to be installed.
[0018]
The mat can absorb the vibration transmitted from the floor to the receiving member in the event of an earthquake, and the vibration of the receiving member can be reduced. Therefore, it is possible to reduce the vibration of the installation structure during an earthquake.
[0019]
The invention of claim 2 has a threaded portion on the outer peripheral surface, a concave portion on the upper surface, and a receiving member that receives the load of the installation structure;
A mat that is provided on the lower surface of the receiving member, has a property of absorbing vibration, has adhesiveness, and can be peeled off from the installation surface;
Screwed into the threaded portion of the receiving member, provided on the outer peripheral side of the receiving member, and rotated so that the bottom surface is located below the bottom surface of the mat and the bottom surface is located above the bottom surface of the mat. An annular installation screw member that is moved up and down between,
An intermediate mat having a center hole and fitted in a recess on the upper surface of the receiving member;
A leg member that is fitted to the center hole and supported by the intermediate mat and fixed to the structure to be installed;
Before use, the bottom surface of the annular installation screw member is located below the bottom surface of the mat, and when used, the bottom surface of the annular installation screw member is below the bottom surface of the mat. Upward The mat is configured to adhere to the installation surface.
[0020]
When the mat adheres to the installation surface, the installation structure can be fixed to the installation surface without making a hole in the installation surface. In addition, by sticking the mat to the installation surface, it is possible to prevent the installation structure from moving on the installation surface during an earthquake and to prevent the installation structure from falling down.
[0021]
Since the annular installation screw member moves up and down by the screw mechanism by rotating the annular installation screw member, the annular installation screw member hits the installation surface and the mat floats from the installation surface And a state where the mat is pressed against the installation surface can be easily obtained. Therefore, it is easy to install the installation structure.
[0022]
The mat can be peeled off from the installation surface, and the annular installation screw member is rotated so that the annular installation screw member is moved downward by the screw mechanism. Since the mat is peeled off from the installation surface by being pushed up relatively from the installation surface, it is easy to change the installation position of the structure to be installed.
[0023]
Furthermore, since the leg member is fitted in the center hole of the intermediate mat that is fitted in the recess on the upper surface of the receiving member, the position of the leg member is automatically regulated at the center of the receiving member. The adjustment work for restricting to be positioned at the center of the member is not necessary. Therefore, the work of installing the structure to be installed becomes easier.
[0024]
The mat absorbs vibration transmitted from the floor to the receiving member during an earthquake, and further, the intermediate mat absorbs vibration transmitted from the receiving member to the leg member. Therefore, it is possible to reduce the vibration of the installation structure during an earthquake.
[0025]
The invention of claim 3 is the footrest device for installation according to claim 1 or 2,
The mat is configured to have a crush prevention member made of a hard material that is thinner than the mat.
[0026]
The collapsible preventing member prevents the mat from being crushed thinly below the thickness of the collapsible preventing member, particularly when the load on the structure to be installed is large and the mat is compressed more than expected. That is, the mat does not collapse excessively to such an extent that the vibration absorption characteristic is abnormally lowered.
[0027]
Invention of Claim 4 has a recessed part in an upper surface, and receives the load of a to-be-installed structure,
A mat that has a central hole and is fitted in a recess in the upper surface of the receptacle;
A leg member that is fitted to the center hole and supported by the mat and fixed to the structure to be installed;
The receiving body is configured to have a fixing means that is fitted to a portion of the installation surface where the installation target structure is installed and fixes the receiving body to the installation surface.
[0028]
The fixing means fixes the receiving body to a portion of the installation surface where the structure to be installed is installed. This is useful when the place where the installation structure is to be installed is predetermined in the installation surface.
[0029]
Furthermore, since the leg member is fitted in the center hole of the mat fitted in the recess on the upper surface of the receiver, the position of the leg member is automatically regulated at the center of the receiver, and the leg member is the receiver. No adjustment work is required to restrict the center of the center. Therefore, the work of installing the structure to be installed becomes easier.
[0030]
The mat absorbs vibration transmitted from the floor during the earthquake to the leg member via the receiving member. Therefore, it is possible to reduce the vibration of the installation structure during an earthquake.
[0031]
According to a fifth aspect of the present invention, the installation base foot device according to any one of the first to fourth aspects is provided on a bottom surface.
[0032]
The installed structure is installed with simple work and excellent seismic resistance.
[0033]
DETAILED DESCRIPTION OF THE INVENTION
2A, 2B, and 3 show an installation foot device 50 according to an embodiment of the present invention. FIG. 2B is a cross-sectional view taken along the line BB in FIG. 2A and 2B show the installation foot device 50 in a used state, that is, in a state where a rack is installed. FIG. 3 is an exploded view of the installation foot device 50.
[0034]
The installation foot device 50 includes, in order from the bottom, a mat 51, an installation screw member 52, a receiving member 53, an intermediate mat 54, an intermediate receiving member 55, a leg member 56, and a loosening prevention nut 57. It is the structure which has.
[0035]
The receiving member 53 has a short columnar shape, and has a concave portion 53a on the upper surface and a threaded portion 53b on the outer peripheral surface. 53c is a bottom surface of the recess 53a, and 53d is an annular wall portion rising from the surface 53c.
[0036]
The threaded portion 53 b on the inner peripheral surface of the annular installation screw member 52 is screwed to the threaded portion 53 b on the outer peripheral surface of the receiving member 53. The annular installation screw member 52 has a height dimension h1 substantially half that of the receiving member 53, has an annular bottom surface 52b, and has a tapered surface 52d between the bottom surface 52b and the outer peripheral surface 52c. The outer peripheral surface 52c has a recess 52e into which the tool is fitted, and is rotated using the tool. Rotated in the clockwise direction C and moved downward, rotated in the counterclockwise direction CC and moved upward. In a state before the installation foot device 50 is attached to the rack 20 and a state before the rack 20 is installed, as shown in FIGS. 5A and 5B, the bottom surface 52b of the installation screw member 52 is a mat. 51 is located below the lower surface 51a. This is because the mat 51 is lifted from the floor 30 when the rack 20 is temporarily installed. The reason why the height h1 of the installation screw member 52 is large is that the screw portion 52b and the screw portion 53b have a sufficient number of screw threads even when the bottom surface 52b is positioned below the lower surface of the mat 51. This is to make it fit in.
[0037]
A disc-shaped mat 51 is attached to the lower surface of the receiving member 53. The mat 51 is a rubber material whose main component is a polyurethane resin, has a characteristic of absorbing vibration, has strong adhesiveness, and can be peeled off when force is continuously applied. However, the lower surface 51a of the mat 51 is still sticky. The mat 51 has substantially the same size and shape as the lower surface of the receiving member 53, and has a predetermined thickness t1 as shown in FIG. The mat 51 can cope with an earthquake having a seismic intensity of about 7, that is, an acceleration of about 1000 Gal.
[0038]
A crush prevention member 58 is fitted in the central opening 51 b of the mat 51. The crush prevention member 58 has a disk shape, has a thickness t2, and is made of a hard material such as acrylic resin. The thickness t2 is slightly smaller than the thickness t1. The collapsing prevention member 58 receives the load of the rack 20 to reduce the mat 51 to a thickness t2 or less, particularly when the load of the rack 20 is large and the mat 51 receives the load of the rack 20 and is compressed more than expected. It does not crush thinly, that is, it does not crush excessively to such an extent that the vibration absorption characteristics deteriorate abnormally.
[0039]
The mat 51 has a lower surface 51a adhered to the floor surface 30 in a state where the rack 20 is installed, and prevents the receiving member 53 from moving during an earthquake. The receiving member 53 is prevented from moving laterally on the floor surface 30 and from being lifted off from the floor surface 30 during an earthquake. Further, the mat 51 serves to absorb the vibration of the floor surface 30 during an earthquake.
[0040]
An intermediate mat 54 is provided in the recess 53a on the upper surface of the receiving member 53 so as to be fitted with no gap around the periphery and in contact with the bottom surface 53c of the recess 53a. The intermediate mat 54 has a short cylindrical shape and has a through hole 54a at the center. The intermediate mat 54 is a rubber material whose main component is a polyurethane resin, and has a characteristic of absorbing vibration.
[0041]
An intermediate receiving member 55 is provided on the upper side of the intermediate mat 54. The intermediate receiving member 55 includes a disc portion 55a and a cylindrical portion 55b protruding downward from the center of the disc portion 55a. The cylindrical portion 55b is fitted in the through hole 54a of the intermediate mat 54 with no gap. The disc portion 55 a has a diameter equal to that of the receiving member 53 and is placed on the upper surface of the intermediate mat 54.
[0042]
The leg member 56 includes a flange part 56a, a bolt part 56a protruding upward from the flange part 56a, and a leg part 51c protruding downward from the flange part 56a.
[0043]
The collar portion 56a has an oval shape, and a tool is fitted when adjusting the height of the rack 20 described later, and the leg member 51 is rotated by operating the tool. The flange portion 56 a is in contact with the upper surface of the disc portion 55 a of the intermediate receiving member 55.
[0044]
The bolt part 56 a is screwed into the nut 21 fixed to the bottom surface of the rack 20. A loosening prevention nut 57 is screwed into the bolt portion 56a.
[0045]
The leg part 56c has a hemispherical part 56d at the tip and is fitted to the cylindrical part 55b of the intermediate receiving member 55, and the hemispherical part 56d protrudes from the lower end of the cylindrical part 55b.
[0046]
In a state before the installation foot device 50 is used, there is a gap 59 between the hemispherical portion 56d and the upper surface 53c of the concave portion 53a of the receiving member 55 as shown in FIG. Yes.
[0047]
Here, the depth dimension a1 of the recess 53a, the thickness dimension a2 of the intermediate mat 54, the length dimension a3 of the cylindrical part 55b, and the length dimension of the leg part 51c (from the position of the lower surface of the disk part 55a in FIG. 2) The dimension a4) up to the tip of the leg 51c has the following relationship.
[0048]
Before the load shown in FIG.
a2> a1, a4> a2, a4> a3
After the load shown in FIG. 2 and FIGS. 5 (B) to (D) is applied,
a2> a1, a4 = a2, a4> a3
It is.
[0049]
Therefore, when a downward load is applied to the leg member 56, the leg member 56 is displaced downward while compressing the intermediate mat 54 together with the intermediate receiving member 55 until the hemispherical portion 56d is pressed against the upper surface 53c. As shown in FIG. 2, in the installation foot device 50, the hemispherical portion 56d is pressed against the upper surface 53c, and the intermediate mat 54 is compressed between the upper surface 53c and the disk portion 55a. A gap 60 exists between the portion 55a and the annular wall portion 53d.
[0050]
Further, the position of the intermediate mat 54 is regulated at the center of the receiving member 53 by the recess 53a, and the position of the leg member 56 is determined by the intermediate mat 54 and the intermediate receiving member 55 and is positioned at the center of the receiving member 53. . The leg member 56 can be displaced in the radial direction of the receiving member 53 by sliding the upper surface 53 c of the hemispherical portion 56 d within a range in which the leg member 56 can be elastically deformed in the radial direction of the intermediate mat 54. When the leg member 56 is displaced in the radial direction of the receiving member 53, the leg member 56 is pushed back to the center position of the receiving member 53 by the restoring elastic force generated in the intermediate mat 54.
[0051]
The installation foot device 50 having the above configuration can cope with an earthquake having a seismic intensity of 7 or more, that is, an acceleration of 1000 Gal.
[0052]
Next, the operation for installing the rack 20 on the floor 30 of the building and the state of the installation foot device 50 will be described mainly with reference to FIGS.
[0053]
If necessary, the installation screw member 52 is appropriately rotated in the clockwise direction C so that the bottom surface 52b is positioned below the lower surface 51a of the mat 51 and the protective sheet covering the lower surface of the mat 51 is peeled off. A device 50 is prepared.
[0054]
First, the caster (not shown) provided on the bottom is used to move to the place where the rack 20 is installed, and the rack 20 is pushed up using a jack (not shown), as shown in FIG. 5 (A). Then, the bolt part 56 a of the installation foot device 50 is screwed into the nut 21, and the installation foot device 50 is attached to the bottom four corners of the rack 20.
[0055]
Next, a jack (not shown) is operated to lower the rack 20 so that the installation foot device 50 supports the rack 20 as shown in FIG. The annular installation screw member 52 comes into contact with the floor 30 of the building. The mat 51 floats from the floor surface 30. In this state, the operator pushes the rack 20 as appropriate, slides the annular installation screw member 52 on the floor 30 of the building as appropriate, moves the rack 20, and adjusts the position of the rack 20 to the installation position. Position. Here, since the annular installation screw member 52 has the tapered surface 52d on the bottom surface 52b side, the installation screw member 52 slides smoothly on the floor surface 30 of the building, and the position of the rack 20 is adjusted. Is easy.
[0056]
Next, the annular installation screw member 52 is rotated counterclockwise CC using a tool. The installation screw member 52 is rotated in the counterclockwise direction CC while sliding on the floor surface 30 and is displaced upward, the receiving member 53 and the like are lowered, and the mat 51 is moved to the floor surface as shown in FIG. It will be in the state where it was pressed by 30 and was stuck to the floor surface 30.
[0057]
Next, the tool is fitted to the flange portion 56a, the leg member 51 is rotated by operating the tool, and the nut 21 is appropriately moved up and down to adjust the heights of the four corners of the rack 20. Here, since the collar portion 56a does not contact the intermediate mat 54 and slides and rotates on the intermediate receiving member 55, the leg member 51 can be reliably rotated.
[0058]
Finally, the loosening prevention nut 57 is turned and tightened and pressed against the bottom surface of the rack 20, and the nut 21 and the loosening prevention nut 57 form a double nut so that the bolt portion 56 a does not rotate with respect to the nut 21. Secure to. FIG. 2 shows a state after the loosening prevention nut 57 is tightened.
[0059]
Next, the function of the installation foot device 50 in a state where the rack 20 is installed on the floor 30 of the building will be described.
[0060]
The weight of the rack 20 is applied to the installation foot device 50. As shown in FIG. 2, the mat 51 is in a compressed state and is pressed against the floor surface 30 so that the lower surface 51a is placed on the floor surface 30. It is sticky. A hemispherical portion 56d at the lower end of the leg portion 56c presses against the upper surface 53c, the intermediate mat 54 is compressed between the upper surface 53c and the disc portion 55a, and the disc portion 55a and the annular wall portion are compressed. A gap 60 exists between 53d and 53d.
[0061]
In the installation foot device 50, the mat 51 adheres to the floor surface 30 and is fixed to the floor surface 30. Further, the position of the leg member 56 is regulated at the center of the installation foot device 50. Therefore, the rack 20 is fixed to the floor surface 30.
[0062]
Here, the fixing of the installation foot device 50 to the floor surface 30 is based on the adhesive force, and therefore an operation such as making a hole in the floor surface 30 for fixing is unnecessary.
[0063]
When an earthquake occurs, the installation foot device 50 functions as follows.
[0064]
In the installation foot device 50, the mat 51 adheres to the floor surface 30 and is fixed to the floor surface 30, and the position of the leg member 56 is regulated by the intermediate mat 54 at the center of the installation foot device 50. Therefore, even if an earthquake occurs, the rack 20 only moves as much as the intermediate mat 54 is deformed in the radial direction, and hardly moves relative to the floor surface 30. Therefore, an accident in which the rack 20 hits an adjacent rack or a cable extending from the floor to the rack 20 does not occur. Therefore, the plurality of racks 20 can be installed close to each other.
[0065]
Even when the intermediate mat 54 is elastically deformed in the radial direction and the leg member 56 moves in the receiving member 53, the leg member 56 is returned to the original position when the intermediate mat 54 is restored after the earthquake is stopped. .
[0066]
Further, the receiving member 53 has the mat 51 adhered to the floor surface 30, the intermediate mat 54 is fitted deeply into the recess 53a, and the cylindrical portion 55b is fitted deeply into the center hole 54a of the intermediate mat 54. The leg portion 56c is deeply fitted in the cylindrical portion 55b, and the leg member 56 is sufficiently restrained in the falling direction. Therefore, the rack 20 is installed in a state in which it is not easily overturned by the installation foot device 50. Therefore, there is no accident that the rack 20 collapses when an earthquake occurs.
[0067]
The vibration transmitted from the floor 30 to the rack 20 is first absorbed by the mat 51 and secondly by the intermediate mat 54. That is, the vibration transmitted from the floor 30 to the receiving member 53 is absorbed by the mat 51, and the vibration of the receiving member 53 is reduced. Further, the vibration transmitted from the receiving member 53 to the leg member 56 is absorbed by the intermediate mat 54, and the vibration of the leg member 56, that is, the vibration of the rack 20 is reduced. Therefore, the electronic device mounted on the rack 20 is protected from the earthquake.
[0068]
Here, even when the load of the rack 20 is large, the presence of the crushing prevention member 58 prevents the mat 51 from crushing below the thickness t2 of the crushing prevention member 58 and has a sufficient vibration absorbing effect.
[0069]
The intermediate mat 54 may be configured to have strong adhesiveness.
[0070]
Next, an operation for changing the installation position of the rack 20 will be described.
[0071]
First, the annular installation screw member 52 is rotated clockwise C using a tool. The installation screw member 52 is rotated downward in the clockwise direction C and is displaced downward, the bottom surface 52b is rotated while sliding on the floor surface 30 and is further displaced downward, and the receiving member 53 and the like are forced away from the floor surface 30. Acted. Here, the mat 51 can be peeled off when force is continuously applied. Therefore, the mat 51 is peeled from the floor surface 30 (see FIG. 5B).
[0072]
In this state, the installation screw member 52 is slid on the floor surface 30 to move the rack 20 to a new installation position. At this position, the annular installation screw member 52 is rotated counterclockwise CC again using a tool, the installation screw member 52 is displaced upward and away from the floor surface 30, and the mat 51 is moved to the floor surface 30. Hit it. Since the surface 51a of the mat 51 remains adhesive even after being peeled from the floor surface 30, when the mat 51 is pressed against the floor surface 30, the mat 51 is adhered to the floor surface 30 (FIG. 5). (See (C)). As described above, the installation position of the rack 20 is changed.
[0073]
Next, an installation foot device according to another embodiment of the present invention will be described. 6 and 7 show an installation foot device 50A according to another embodiment of the present invention. The installation foot device 50A is different from the installation foot device 50 shown in FIGS. 2 and 3 in the structure to be fixed to the floor, and in FIGS. 6 and 7, FIGS. The same reference numerals are given to the same components as those shown in FIG.
[0074]
The installation foot device 50A includes a tray member 70, a receiving member 53, an intermediate mat 54, an intermediate receiving member 55, a leg member 56, and a loosening prevention nut 57 in order from the bottom.
[0075]
The saucer member 70 includes a saucer body 71 and bolts 72 protruding downward from the bottom surface 71a. A nut 73 is screwed onto the bolt 72. The bolt 72 and the nut 73 constitute fixing means.
[0076]
The tray main body 71 has a recess 71 b corresponding to the receiving member 53. The recess 71b has a bottom surface 71a and a threaded portion 71c on the inner peripheral surface. The receiving member 53 is screwed into the recess 71 b and is integrated with the receiving plate member 70. The receiving member 53 and the receiving tray member 70 constitute a receiving body 74.
[0077]
The intermediate mat 54 is fitted in the recess 53a of the receiving body 74, the intermediate receiving member 55 is fitted on the upper side of the intermediate mat 54, and the leg member 56 has an intermediate leg 51c. It is fitted in the receiving member 55, and the flange portion 56 a is provided on the intermediate receiving member 55.
[0078]
In the above-described installation foot device 50A, the floor structure of the building in which the rack is installed is a structure of the free access floor 80 supported by the support member 81 on the floor surface 30. This is applied to the case where the hole 80a is formed at the place where the device is installed.
[0079]
The rack 20 is installed on the free access floor 80 as follows.
[0080]
First, the rack 20 is moved to a place where the rack 20 is installed using a caster (not shown), the rack 20 is pushed up using a jack (not shown), and the installation table is similar to that shown in FIG. The bolt portion 56 a of the foot device 50 </ b> A is screwed into the nut 21, and the installation foot device 50 </ b> A is attached to the bottom four corners of the rack 20. The nut 73 is removed.
[0081]
Next, a jack (not shown) is operated to lower the rack 20, the bolts 72 are fitted into the holes 80 a, and the receiving body 74 is supported on the free access floor 80.
[0082]
The nut 73 is screwed onto the bolt 72 from the lower surface of the free access floor 80, and the nut 73 is tightened to fix the installation foot device 50A to the free access floor 80.
[0083]
Next, as in the case of the installation foot device 50, the leg member 51 is rotated using a tool to adjust the heights of the four corners of the rack 20, and finally, the loosening prevention nuts 57 are turned and tightened. .
[0084]
When an earthquake occurs, the installation foot device 50A functions as follows.
[0085]
The installation foot device 50A is fixed to the free access floor 80 by bolts 72 and nuts 73, and the leg member 56 is regulated by the intermediate mat 54 at the center of the installation foot device 50A. Even if this occurs, the rack 20 moves only by the amount of deformation of the intermediate mat 54 in the radial direction, and hardly moves relative to the floor surface 30. Further, vibration transmitted from the free access floor 80 to the rack 20 is absorbed by the intermediate mat 54.
[0086]
Of course, the receiving member 53 and the receiving plate member 70 may be formed of a single member.
[0087]
The installation foot devices 50 and 50A can also be used when the cabinet is installed on the floor. Moreover, the surface to install is not limited to the floor surface of a building.
[0088]
【The invention's effect】
As described above, the invention of claim 1 has a characteristic that absorbs vibration on the lower surface of the receiving member that receives the load of the installation structure, has adhesiveness, and is peeled off from the installation surface. A mat that can be mounted, and an annular installation screw member around the receiving member. Before use, the annular installation screw member is in a lower position. Since the member is in the upper position and the mat is adhered to the installation surface, the following effects are obtained.
[0089]
(1) Since the mat adheres to the installation surface, the structure to be installed can be fixed to the installation surface without making a hole in the installation surface. In addition, the mat adheres to the installation surface, so that the installation structure can be prevented from moving on the installation surface during an earthquake, and the installation structure can be prevented from falling down.
[0090]
(2) Since the annular installation screw member moves up and down by the screw mechanism by rotating the annular installation screw member, the annular installation screw member hits the installation surface and the mat is installed It is possible to easily obtain the state of floating from the surface and the state of the mat pressing against the installation surface. Therefore, it is possible to easily perform the work of installing the installation structure.
[0091]
(3) The mat can be peeled off from the installation surface, and the annular installation screw member is moved downward by the screw mechanism by rotating the annular installation screw member. Since the receiving member is pushed up relatively from the installation surface and the mat is peeled off from the installation surface, the installation position of the installation target structure can be easily changed.
[0092]
(4) The mat can absorb the vibration transmitted from the floor to the receiving member in the event of an earthquake, and the vibration of the receiving member can be reduced. Therefore, the vibration which a to-be-installed structure receives at the time of an earthquake can be reduced.
[0093]
The invention of claim 2 is a mat that has a characteristic of absorbing vibration on the lower surface of the receiving member that receives the load of the installation structure, has adhesiveness, and can be peeled off from the installation surface. In addition to the configuration having the annular installation screw member around the receiving member, the intermediate mat is fitted in the recess on the upper surface of the receiving member, and is fitted in the center hole of the intermediate mat. And a leg member fixed to the structure to be installed, and before use, the annular installation screw member is in a lower position. At the time of use, the installation screw member is In addition to the above-described effect of the first aspect of the present invention, the mat has the following effects because it is in the upper position and the mat adheres to the installation surface.
[0094]
(1) Since the leg member is fitted in the center hole of the intermediate mat that is fitted in the recess on the upper surface of the receiving member, the position of the leg member is automatically regulated at the center of the receiving member. The adjustment work for restricting to be positioned at the center of the member is not necessary. Therefore, the operation of installing the installation structure can be performed more easily.
[0095]
(2) The mat absorbs vibration transmitted from the floor to the receiving member during an earthquake, and further, the intermediate mat absorbs vibration transmitted from the receiving member to the leg member. Therefore, it is possible to reduce the vibration of the installation structure during an earthquake.
[0096]
According to a third aspect of the present invention, in the installation foot device according to the first or second aspect, the mat includes a crush prevention member made of a hard material that is thinner than the mat and is made of a hard material. Therefore, the mat is prevented from being crushed thinly below the thickness of the collapsing prevention member, and sufficient vibration absorption characteristics can be obtained even when the load on the structure to be installed is large.
The invention of claim 4 has a recess on the upper surface, a receiving body for receiving the load of the structure to be installed, a center hole, and a mat fitted in the recess on the upper surface of the receiving body; A leg member that is fitted to the center hole and supported on the mat and fixed to the installation structure; and the receiving body is provided with the installation structure on the installation surface. When the place where the structure to be installed is to be installed is predetermined in the installation surface, the fixing means for fixing the receiving body to the installation surface is provided. It is effective to use. Further, since the leg member is fitted in the center hole of the mat that is fitted in the recess on the upper surface of the receiver, the position of the leg member is automatically regulated at the center of the receiver, and the leg member is No adjustment work is required to restrict the center position. Therefore, the work of installing the structure to be installed becomes easier. The mat absorbs vibration transmitted from the floor to the leg member through the receiving body during an earthquake. Therefore, it is possible to reduce the vibration of the installation structure during an earthquake.
[0097]
Since the invention of claim 5 is configured to include the installation foot device according to any one of claims 1 to 4 on the bottom surface, the structure to be installed can be easily operated. In addition, it can be installed in a state having excellent earthquake resistance.
[Brief description of the drawings]
FIG. 1 is a diagram showing a conventional installation foot device.
FIG. 2 is a view showing an installation foot device according to an embodiment of the present invention.
3 is an exploded perspective view of the installation foot device of FIG. 2 (A). FIG.
FIG. 4 is a diagram showing a mat.
FIG. 5 is a diagram illustrating a state of an installation foot when a rack is installed.
FIG. 6 is a view showing an installation foot device according to another embodiment of the present invention.
7 is an exploded perspective view of the installation foot device shown in FIG. 6. FIG.
[Explanation of symbols]
20 racks
30 Floor
50, 50A Installation foot device
51 mat
52 Screw member for installation
53 receiving member
54 intermediate mat
55 Intermediate receiving member
56 Leg members
57 Loosening prevention nut
70 saucer member
71 saucer body
72 volts
73 Nut
74 Receiver

Claims (5)

A receiving member having a threaded portion on the outer peripheral surface and receiving a load of the installation structure;
A mat that is provided on the lower surface of the receiving member, has a property of absorbing vibration, has adhesiveness, and can be peeled off from the installation surface;
Screwed into the threaded portion of the receiving member, provided on the outer peripheral side of the receiving member, and rotated so that the bottom surface is located below the bottom surface of the mat and the bottom surface is located above the bottom surface of the mat. An annular installation screw member that is moved up and down between,
Before use, the bottom surface of the annular installation screw member is in a position below the lower surface of the mat, and in use, the bottom surface of the annular installation screw member is in a position above the lower surface of the mat, An installation foot device characterized in that the mat adheres to the installation surface. A receiving member having a threaded portion on the outer peripheral surface, a concave portion on the upper surface, and receiving a load of the installation structure;
A mat that is provided on the lower surface of the receiving member, has a property of absorbing vibration, has adhesiveness, and can be peeled off from the installation surface;
Screwed into the threaded portion of the receiving member, provided on the outer peripheral side of the receiving member, and rotated so that the bottom surface is located below the bottom surface of the mat and the bottom surface is located above the bottom surface of the mat. An annular installation screw member that is moved up and down between,
An intermediate mat having a center hole and fitted in a recess on the upper surface of the receiving member;
A leg member that is fitted to the center hole and supported by the intermediate mat and fixed to the structure to be installed;
Before use, in a position below the lower surface bottom of the mat of the annular installation screw member, in use, the bottom surface of the annular installation screw member is in the position above the lower surface of the mat, the An installation foot device characterized in that the mat adheres to the installation surface. In the installation footrest apparatus of Claim 1 or Claim 2,
The installation foot device according to claim 1, wherein the mat is configured to include a crush prevention member made of a hard material that is thinner than the thickness of the mat. A receiver having a recess on the upper surface and receiving the load of the structure to be installed;
A mat that has a central hole and is fitted in a recess in the upper surface of the receptacle;
A leg member that is fitted to the center hole and supported by the mat and fixed to the structure to be installed;
The installation base characterized in that the receiving body includes a fixing means that fits to a portion of the installation surface where the installation target structure is installed and fixes the reception body to the installation surface. Foot equipment.   A structure to be installed, characterized in that a bottom surface is provided with the installation foot device according to any one of claims 1 to 4.

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