JP2022031054A - Floor panel support device and base isolation double floor structure construction method - Google Patents

Abstract

To solve the problem in which, since it is difficult to hold floor surfaces of opposite floor panels flush with each other, there is poor resistance to earthquakes.SOLUTION: A floor panel support device of the present invention comprises a support leg including a double thread male screw part provided with a coarse thread and a fine thread smaller in pitch than the coarse thread, a ball caster for supporting a floor panel, a support plate having a female screw part that screws one male screw part of the double threads, and a nut that screws the other male screw part of the double threads. Floor surface of each floor panel can hold flush with each other because axially perpendicular direction vibration external force is absorbed by a ball rotation of the ball caster, and looseness of the screw parts is prevented by a double nut effect due to different pitch screwing. Also a floor panel mounted to a ball upper part does not slide over the ball in horizontal all directions because the floor panel is connected to the wall of the structure by a damper. And a base isolation double floor structure giving a base isolation effect can be constructed because vibration from a structure foundation floor surface is eliminated.SELECTED DRAWING: Figure 1

Description

In the present invention, a space is provided between the basic floor surface of a building and the floor panel to store communication / power cables, etc., or the communication / power cables are rearranged according to the arrangement of equipment, desks, etc. installed on the floor panel. The floor panel support device constituting the floor and the floor panel are connected to each other by a damper, and the floor panel absorbs the shaking of the building by the damper at the time of an earthquake and the floor panel support device. The present invention relates to a vibration-proof double floor structure construction method in which a ball of the ball caster rotates with the shaking transmitted from the floor panel and the horizontal movement of the floor panel is excluded.

Some conventional floor panel support devices sandwich the floor panel between the support plates with a panel retainer and press the floor panels to prevent the support plates from rotating (see, for example, Patent Documents 1-3).

Further, in the conventional floor panel support device, there is a device in which a set screw is screwed into a support column to prevent the rotation of the female screw portion provided on the pedestal (see, for example, Patent Document 4).

Further, in the conventional floor panel support device, there is a device in which an adhesive is poured between the male screw of the support column and the female screw of the body of the adjustment table to prevent the adjustment table from rotating (see, for example, Patent Document 5).

In the conventional anti-vibration double floor structure, a sphere holding part, a sphere, a height adjusting nut and a fixing nut are provided on the support column, and the floor panel mounted on the upper part of the sphere slides horizontally on the sphere in all directions. , Some have an anti-vibration effect (see, for example, Patent Document 6).

Japanese Unexamined Patent Publication No. 2000-234435 Japanese Unexamined Patent Publication No. 2006-104891 Japanese Unexamined Patent Publication No. 2012-21450 Japanese Unexamined Patent Publication No. 2015-048654 Japanese Unexamined Patent Publication No. 2015-193989 Japanese Patent No. 6662514

The problem to be solved by the present invention is that the floor panel support device provides a space between the foundation floor surface of the building and the floor panel, and the floor surface surface of the floor panels facing each other by moving the floor panel up and down. There must be a function to adjust one and to keep the floor surface flush with each other. However, in the conventional structure, the function of holding the floor surface flush with each other is to sandwich the floor panel by pinching pressure, hold the support with the retaining screw, fix the support and the adjustment table with adhesive, or fix the nut. In order to prevent rotation by fixing with, the panel receiving plate is lowered due to loosening of the screw between the screw part of the column and the screw part of the panel receiving plate screwed to this screw part, causing rattling and misalignment of the floor panels, and the floor panels are separated from each other. Since it is not possible to maintain the flush surface of the floor surface, there is a problem that the flush surface of the floor surface must be repeatedly adjusted.

Further, in the vibration-proof double floor structure, the problem to be solved by the present invention is that a sphere holding portion, a sphere, a height adjusting nut and a fixing nut are provided on the support column, and a floor panel mounted on the upper part of the sphere is provided. It is said that it slides on the sphere in all horizontal directions to obtain the vibration isolation effect, but as mentioned above, there is no rotation prevention with the fixing nut, and the floor panel slides on the sphere in all horizontal directions, but to the building. There is no function to prevent collision.

Loosening of the screw includes loosening caused by the screw returning and rotating under the vibration external force in the direction perpendicular to the axis, and this loosening is a very dangerous loosening that often occurs. When a person walks on the floor panel, the movement of the foot moves horizontally when stepping on, and returns when kicking, and the floor panel moves horizontally back and forth. The lower surface of the panel causes friction, and an external force of vibration in the direction perpendicular to the axis is applied to the threaded part where the column and the panel receiving plate are screwed, which becomes the driving force to loosen the sliding trajectory due to the relative displacement, and the column and the panel receiving plate are screwed together. The threaded part returns and rotates, causing loosening, and the panel receiving plate is lowered.

In the conventional floor panel support device, a support column having a male thread portion is erected in the center of the base plate, and a panel receiving plate having a female threaded portion screwed to the male threaded portion of the column and a female threaded portion screwed to the male thread portion of the column are provided. The floor panel is sandwiched by the holding panel, the floor panel is pinched by the pinching screw, the strut is held down by the retaining screw, the strut and the adjustment base are fixed by the adhesive, or the fixing nut is fixed. When a person walks on the floor panel, the floor panel moves horizontally back and forth, and the upper surface of the panel receiving plate and the lower surface of the floor panel, and the flange surface of the panel retainer and the upper surface of the floor plate are rubbed due to friction. An external force for vibration in the direction perpendicular to the axis is applied to each screwed screw, causing loosening in the sliding locus due to relative displacement, and the screw of the panel receiving plate and the panel retainer returns and rotates to cause loosening.

For this reason, the conventional floor panel support device has no measure to remove the vibration external force in the direction perpendicular to the axis generated by a person walking on the floor panel, and the screw with the screw part of the panel receiving plate screwed to the screw part of the column. Since the prevention of loosening is weak, if a person walks on the floor panel for a long time, the panel backing plate will drop, and the floor panel will rattle or shift. The flushness of the floor between the floor panels must be adjusted frequently.

The present invention has been made in view of removing the external force of vibration in the direction perpendicular to the axis and preventing loosening of the screw with the screw part of the panel receiving plate screwed to the screw part of the column, and the floor panel is made into a ball. A support leg that is supported by casters and has a coarse screw and a fine screw with a pitch smaller than that of the coarse screw is provided on the outer peripheral portion of the double screw. The above problem is to be solved by providing a support plate having a female screw portion to be screwed into the portion and a nut to be screwed to the other male screw portion of the double screw.

In order to achieve the above object, the floor panel support device of the present invention 1 has a coarse screw and a fine screw having a pitch smaller than the coarse screw on the outer peripheral portion from a ground plate installed on the floor surface of the building foundation. A support leg on which a double-screw male screw portion is erected, a ball caster that supports the floor panel, a support plate having a female screw portion that is screwed into one of the double-screw male screw portions, and the above. It is characterized by consisting of a nut that is screwed into the other male thread portion of the double screw.

The floor panel support device of the present invention 2 is the same as that of the present invention 1.
The ball caster has a double screw male screw portion having a coarse screw and a fine screw having a pitch smaller than the coarse screw on the outer peripheral portion, and the support plate is one of the double screws of the ball caster. It has a female screw portion to be screwed into the male screw portion, and is characterized in that a nut to be screwed is added to the other male screw portion of the double screw of the ball caster.

Further, the floor panel support device according to claim 1 and 2 is installed on the floor surface of the building foundation, the floor panel is placed on the ball caster of the floor panel support device, and the building and the floor panel are attached to each other. The floor panel is connected by a damper, and the floor panel absorbs the shaking of the building by the damper, and the ball of the ball caster rotates the shaking transmitted from the floor panel support device, so that the floor panel moves in the horizontal direction. Provided is a vibration-free double-floor structure construction method characterized by being excluded.

According to the floor panel support device of the present invention 1, the force of horizontal reciprocating movement generated in the floor panel by a person walking is converted into the force of rotating the ball of the ball caster, so that the floor panel generated in the conventional structure. Since there is no friction between the lower surface of the panel and the upper surface of the panel receiving plate, the external force of vibration in the direction perpendicular to the axis is not transmitted to the threaded part where the support base and the panel receiving part are screwed, so the threaded part of the panel receiving part returns. It does not rotate and loosen, and as a screw loosening prevention, a double screw male screw part with a coarse screw and a fine screw with a pitch smaller than the coarse screw is applied to the outer periphery from the ground plate. A support plate having a female screw portion screwed to one male screw portion of the double screw, and a nut screwed to the other male screw portion of the double screw are provided. Therefore, it is possible to prevent the screws from loosening, that is, to enhance the double nut effect.

According to the floor panel support device of the present invention 2, in addition to the effect of the present invention 1, the ball caster is a double screw male having a coarse screw and a fine screw having a pitch smaller than the coarse screw on the outer peripheral portion. The support plate has a screw portion, and the support plate has a female screw portion to be screwed into one male screw portion of the double screw of the ball caster, and is screwed to the other male screw portion of the double screw of the ball caster. Since the nuts are added, it is possible to provide the effect of finely adjusting the height of the corners of each floor panel. ..

Further, the floor panel support device of the present invention 1 and the present invention 2 is installed on the floor surface of the building foundation, the floor panel is placed on the ball caster of the floor panel support device, and the building and the floor panel are used. The floor panel absorbs the shaking of the building by the damper at the time of an earthquake, and the ball of the ball caster rotates the shaking transmitted from the floor panel support device, and the floor panel moves in the horizontal direction. It is also possible to provide a vibration-free double-floor structure construction method characterized by the elimination of.

It is a perspective view which shows the structure of the floor panel support device of one Embodiment of this invention. It is a perspective view which shows the structure of the floor panel support device of one Embodiment of this invention. It is an external view which shows the male thread part of the double screw used in this invention. It is sectional drawing which shows the state which the coarse female thread part and the fine female thread part are screwed to the male thread part of the double screw used in this invention. It is sectional drawing of the building of the seismic isolation double-floor structure construction which shows one Example of this invention.

Embodiments of the present invention will be described with reference to the accompanying drawings. The floor panel support device 1 according to the present invention shown in FIG. 1 has a ground plate 4, a coarse screw 5, and a fine screw 6 having a pitch smaller than the coarse screw 5, which are installed on the foundation floor surface 3 of the building 2. It is screwed into the male screw portion 7 of the support leg 8 on which the double screw male screw portion 7 provided on the portion is erected, the ball caster 10 that supports the floor panel 9, and the coarse screw 5 of one of the double screws. It consists of a support plate 12 having a female screw portion 11 and a nut 13 screwed into a male screw portion 7 of the other fine screw 6 of the double screw, and is mainly installed in a place close to the wall 14 side of the building 2. It supports the floor panel 9.

When a person walks on the floor panel 9, the movement of the foot is a horizontal movement that goes back when stepping on, and a horizontal movement that returns when kicking, so that the floor panel 9 moves horizontally back and forth, so that the support plate 12 The upper surface and the lower surface of the floor panel 9 cause friction, and an external vibration force in the direction perpendicular to the axis is applied to the threaded portion where the support legs 8 and the support plate 12 are screwed. However, since the floor panel 9 is supported by the ball casters 10, the floor panel 9 is supported by the ball casters 10. The external force of vibration in the direction perpendicular to the axis is absorbed by the ball rotation of the ball caster 10.

A coarse screw 5 and a fine screw 6 having a pitch smaller than that of the coarse screw 5 are screwed into a double screw male screw portion 7 provided on the outer peripheral portion and into a male screw portion 7 of the coarse screw 5 of the double screw. A double nut effect is obtained by the support plate 12 having the female screw portion 11 and the nut 13 screwed into the male screw portion 7 of the fine screw 6 of the double screw. In the case of the conventional double nut, the double nut effect is weak because the screws have the same pitch, but in the present invention, since the double nut has a different pitch, even if some external force is applied to the support plate 12 to cause loosening and rotation, the pitch Since the nuts 13 having different nuts 13 are provided at the lower part of the support plate 12, a double nut effect is generated in which the nuts 13 cannot be loosened and rotated.

The floor panel 9 installed by adjusting the flushness of the floor surfaces of the floor panels 9 with the floor panel support device 1 is provided with a function of holding the flush surface of the floor surface.

FIG. 2 shows four ball casters 17 provided with a double screw male screw portion 16 having a coarse screw 5 and a fine screw 6 having a pitch smaller than that of the coarse screw 5 on the outer peripheral portion of the double screw. A support plate 15 having four female screw portions 11 screwed into one male screw portion 7 and four female screw portions 18 screwed into one male screw portion 16 of the double screw, and the other male of the double screw. The nuts 19 screwed to the screw portions 16 show a configuration of four, and are mainly installed in a place where a plurality of (four) corners of the floor panel 9 gather at a place away from the wall 14 side of the building 2. This is an embodiment of the floor panel support device 1.

Normally, the floor panel 9 has a square shape of about 500 mm, and four corners of the floor panel 9 are placed on the floor panel support device 1 except for the wall 14 side of the building 2. The male screw portion 7 and the nut 13 are used to make the four floor panels 9 substantially horizontal, and the ball casters 17 and the nut 19 are used to finely adjust the height of each floor panel 9 for each sheet.

In the configuration shown in FIG. 2, the double nut effect having different pitches is obtained twice, and the floor panel 9 installed by adjusting the floor surface flushness between the floor panels 9 with the floor panel support device 1 is the floor surface. Keep flush.

Even if the ball caster 10 and the ball caster 17 can remove the external force for vibration in the direction perpendicular to the axis due to the floor panel 9, the external force for vibration in the direction perpendicular to the axis from the building 2 is applied at the time of an earthquake. At this time, since the pitches of the female threaded portion 11 and the threaded portion of the nut 13 are different, loosening can be prevented. Similarly, since the pitches of the female threaded portion 18 and the threaded portion of the nut 19 are different, loosening can be prevented.

In the vibration-isolated double floor structure according to the present invention shown in FIG. 5, the floor panel 9 mounted on the floor panel support device 1 installed on the foundation floor surface 3 of the building 2 is the building 2 via the damper 20. It is connected to the wall 14.

The ball caster 10 and the ball caster 17 remove the external vibration force generated by a person walking on the floor panel 9 in the direction perpendicular to the axis. A double screw male screw portion 7 having a mesh screw 5 and a fine screw 6 having a pitch smaller than that of the coarse screw on the outer periphery, and a coarse screw 5 and a fine screw 6 having a pitch smaller than the coarse screw 5 The double nut effect of the female screw portion 11 and the female screw portion 18 screwed to the double screw male screw portion 16 provided on the outer peripheral portion, and the nut 13 and the nut 19 prevents the screw from loosening.
Further, since the floor panel 9 mounted on the floor panel support device 1 described above is connected to the wall 14 of the building 2 by the damper 20, the floor panel 9 is horizontally omnidirectional on the sphere at the time of an earthquake. The damper 20 absorbs each other's horizontal vibrations without sliding, and the balls of the ball caster 10 and the ball caster 17 rotate due to the shaking transmitted from the floor panel support device 1, and the floor panel 9 is horizontal. The movement of is excluded.

Threaded Bolt Reference Material "Patent No. 5042931"

Floor panel support device 1, building 2, foundation floor surface 3, ground plate 4, coarse screw 5, fine screw 6, male screw part 7, support leg 8, floor panel 9, ball caster 10, female screw part 11, Support plate 12, nut 13, wall 14, support plate 15, male screw part 16, ball caster 17, female screw part 18, nut 19, damper 20

Claims (3)

From the ground plate installed on the floor of the foundation of the building, a support leg with a double screw male screw part with a coarse screw and a fine screw with a pitch smaller than the coarse screw on the outer periphery.
With ball casters that support the floor panel,
A support plate having a female screw portion to be screwed into one male screw portion of the double screw,
A nut screwed into the other male thread of the double screw,
Floor panel support device consisting of. In the floor panel support device according to claim 1,
The ball caster has a double screw male screw portion having a coarse screw and a fine screw having a pitch smaller than that of the coarse screw on the outer peripheral portion.
The support plate has a female threaded portion screwed into one male threaded portion of the double screw of the ball caster.
A floor panel support device characterized in that a nut to be screwed is added to the other male screw portion of the double screw of the ball caster. The floor panel support device according to claim 1 and 2 is installed on the floor surface of the building foundation, the floor panel is placed on the ball caster of the floor panel support device, and the building and the floor panel are damperized. When connected, the floor panel absorbs the shaking of the building by the damper, and the ball of the ball caster rotates the shaking transmitted from the floor panel support device, and the horizontal movement of the floor panel is eliminated. A vibration-free double-floor structure construction method characterized by this.

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