JP2018178473A - Double floor supporting leg and construction method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a double floor supporting leg that is capable of reducing a load applied on an operator during an operation, and a construction method.SOLUTION: A base member 10 in this supporting has a base plate 11 that is mounted on a floor slab, and a screw shaft 12 is erected in the base plate 11. A groove 13 is formed along the axial direction of the screw shaft 12 on the outer peripheral surface of the screw shaft 12.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a dual floor support leg and method of construction.

  In recent offices and the like, there are many cases where a double floor having a so-called free access floor is provided. Such a double floor is formed, for example, by holding a rectangular floor panel at a predetermined height position from a plurality of floor slabs. The plurality of floor slabs are supported by, for example, support legs disposed at positions where four floor panels are collected.

  As a support leg used for such a double floor, conventionally, it has a lower pedestal placed on the floor, a screw shaft erected from the lower pedestal, and a screw sleeve screwed on the same screw shaft on the lower surface There is a support leg of the double floor panel which consists of an upper pedestal which supports a floor panel by the upper surface (for example, refer to patent documents 1). This support leg is provided with a support portion in which the upper base projects in a direction perpendicular to the axis of the screw sleeve and on the upper surface of which a mounting portion on which the floor panel is mounted is formed. The threaded portion is formed at least to a position above the formation portion of the support portion.

JP-A-7-197629

  However, in the support leg disclosed in Patent Document 1, in order to adjust the height position of the upper pedestal, the sleeve is fixed to the screw shaft with the stop bolt from the side of the screw shaft. For this reason, in order to fix a stop bolt, since work from the side of a screw axis will be needed, there existed a problem to which the burden on an operator becomes large by that much. In particular, since the support legs are provided on the floor, there is a problem that the work from the side of the screw shaft has a greater burden on the operator.

  Then, the problem which this invention tends to solve is providing the supporting leg and the construction method of the double floor which can make the burden applied to a worker at the time of operation small.

  The double floor supporting leg according to the present invention is a double floor supporting leg for holding the floor panel at a predetermined height in a double floor comprising a floor panel and a floor slab, which is mounted on the floor slab A screw shaft is erected on the base plate, and a groove along an axial direction of the screw shaft is formed on an outer peripheral surface of the screw shaft.

  In the double-floor support leg according to the present invention, a groove along the axial direction of the screw shaft is formed on the outer peripheral surface of the screw shaft erected on the base plate. By pouring an adhesive into the groove, a sleeve or the like can be fixed to the screw shaft by the adhesive. For this reason, it is possible to eliminate the work from the side of the screw shaft as in the case of using the stop bolt. Therefore, the burden placed on the worker at the time of work can be reduced.

  Further, in the double floor support leg according to the present invention, the groove may be formed by being notched from the top of the screw shaft.

  As described above, since the groove is formed by notching the top of the screw shaft, the operation of pouring the adhesive into the groove can be reliably performed from above the screw shaft. Therefore, the burden imposed on the worker at the time of work can be further reduced.

  In the double floor support leg according to the present invention, a through hole may be formed to penetrate the screw shaft and the base plate.

  Thus, by forming the through holes penetrating the screw shaft and the base plate, the adhesive can be spread to the back side of the base plate through the through holes. Therefore, since the base plate of the support leg can be fixed to the slab floor by pouring the adhesive from above, the burden on the operator at the time of operation can be further reduced.

  Further, in the supporting leg of the double floor according to the present invention, the groove portion may be formed in plural so as to be separated in the circumferential direction of the screw shaft.

  As described above, since the groove portions are formed in plural so as to be separated in the circumferential direction of the screw shaft, the sleeve or the like can be reliably fixed to the screw shaft by an adhesive or the like.

  In the method of installing a double floor according to the present invention, the support leg of any of the double floors described above is disposed on a floor slab, an adhesive is injected into the groove, and then the floor panel is attached to the screw shaft. The screw shaft is fixed to hold the floor panel on the support leg of the double floor.

  According to the support leg and the construction method of the double floor according to the present invention, it is possible to reduce the burden on the operator at the time of operation.

FIG. 10 is an exploded perspective view of a support structure including dual floor support legs. It is a perspective view of a support leg. It is a top view of a support leg. It is a figure explaining the construction procedure of a double floor.

  Hereinafter, a support leg and a construction method of a double floor according to an embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is an exploded perspective view of a support structure including a double floor support leg, FIG. 2 is a perspective view of the support leg, and FIG. 3 is a plan view of the support leg. As shown in FIG. 1, the double floor support structure M comprises a support leg 1 mounted on a floor slab. The support leg 1 includes a base member 10 and a pedestal 20. Furthermore, the support structure M comprises a lock base 30 and a lock plate 40 provided on the support leg 1.

  The support structure M is disposed at a position where the ends of the four floor panels are gathered among the plurality of floor panels disposed above and spaced apart from the floor slab. The support structure M holds the floor panel at a predetermined height by sandwiching the floor panel with the lock base 30 and the lock plate 40. The support leg 1 holds the floor panel in a double floor provided with a floor panel and a floor slab at a predetermined height.

  As also shown in FIG. 2, the base member 10 in the support leg 1 includes a base plate 11, and a screw shaft 12 is provided upright on the base plate 11. At four corners of the base plate 11, base plate screw holes 11A are formed. Three grooves 13 are formed on the outer peripheral surface of the screw shaft 12 so as to be separated in the circumferential direction of the screw shaft 12. As shown in FIG. 3, the three groove portions 13 are formed by being cut away from the top of the screw shaft 12, and are arranged at substantially equal intervals in a circular portion of the screw shaft 12 in plan view. These three grooves 13 are cut in the radial direction of the screw shaft 12 and all extend from the top of the screw shaft 12 to a substantially central position in the height direction.

  Further, a screw shaft opening 14 is formed at a central portion of the top of the screw shaft 12, and a through hole 15 along the axial direction of the screw shaft 12 is formed in the screw shaft 12. The through hole 15 is in communication with the screw shaft opening 14 and penetrates from the top to the bottom of the screw shaft 12 and also penetrates the base plate 11. The height of the top of the screw shaft 12 is slightly lower than that of the surrounding screw portion.

  The pedestal 20 is provided with a plate-like pedestal portion 21. The pedestal portion 21 has a substantially regular octagonal shape in plan view. However, the pedestal 21 may have another shape. A sleeve 22 is attached to the lower surface of the pedestal 21. The sleeve 22 has a tubular shape and extends along the axial direction of the screw shaft 12 of the base member 10. The inner surface of the sleeve 22 is formed with a screw groove into which the screw shaft 12 is screwed.

  A cushioning material 23 is provided on the upper surface of the pedestal 21. Furthermore, a pedestal opening 24 communicating with the screw shaft opening 14 formed at the top of the screw shaft 12 is formed at the central portion of the pedestal 21 and the cushion material 23. In addition, pedestal portion screwing holes 21A are formed at two opposing positions in the end portion of the pedestal portion 21.

  Further, as shown in FIG. 1, a lock base 30 is attached to the pedestal 20. The lock base 30 includes a base 31. The base portion 31 has a circular shape in plan view, and an opening is formed at the center. The base portion 31 is provided with four plate-like partition plates 32. Adjacent ones of the four partition plates 32 are arranged to be orthogonal to each other in plan view.

  A screw receiving portion 33 is formed at a central portion where the four partition plates 32 are collected. Further, lock base screwing holes 31A are formed at two opposing locations at the end of the base portion 31. The lock base screwing hole 31A is disposed at a position corresponding to the pedestal screwing hole 21A formed in the pedestal 21 of the pedestal 20. The bolt base (not shown) is tightened between the lock base screwing hole 31A and the pedestal screwing hole 21A, whereby the lock base 30 is fixed and attached to the pedestal 20.

  The lock plate 40 is provided with a disc-shaped cap 41. On the lower surface of the cap 41, a screw portion 42 screwed into the screw receiving portion 33 of the lock base 30 is provided. The lock plate 40 is attachable to the lock base 30 by screwing the screw portion 42 into the screw receiving portion 33, and the floor panel is supported by the base portion 31 of the lock base 30 and the cap 41 of the lock plate 40. It is made possible.

  Next, the construction procedure of the double floor will be described. FIG. 4 is a figure explaining the construction procedure of a double floor. When constructing a double floor, first, the floor slab is blacked out, and the base plate 10 of the base member 10 of the support leg 1 is positioned as shown in FIG. Place 11 Thus, the base member 10 is installed on the floor slab.

  After the base member 10 is placed on the floor slab, as shown in FIG. 4B, the sleeve 22 of the pedestal 20 is screwed into the screw shaft 12 of the base member 10. Subsequently, the height of the pedestal 21 is adjusted by rotating the sleeve 22 clockwise or counterclockwise in plan view with respect to the screw shaft 12.

  After adjusting the height of the pedestal 21, as shown in FIG. 4C, the adhesive 51 contained in the adhesive container 50 is injected from the pedestal opening 24 formed at the center of the pedestal 21. . The adhesive 51 injected from the pedestal opening 24 of the pedestal 21 flows into the space between the sleeve 22 in the pedestal 20 and the screw shaft 12 in the base member 10. A space between the sleeve 22 and the screw shaft 12 communicates with the groove 13 and the through hole 15 formed around the screw shaft 12.

  Therefore, the adhesive 51 injected from the pedestal opening 24 of the pedestal 21 passes through the space between the sleeve 22 and the screw shaft 12 and flows into the groove 13 and the screw shaft opening 14. Thus, the adhesive 51 penetrates between the screw shaft 12 and the sleeve 22 through the groove portion 13 and passes through the screw shaft opening 14 and the through hole 15 to form the base plate 11 and the floor slab on the back side of the base plate 11. It penetrates to the middle.

  The adhesive 51 penetrated between the screw shaft 12 and the sleeve 22 via the groove 13 fixes the sleeve 22 to the screw shaft 12. Thus, the height-adjusted pedestal 20 is fixed to the base plate 11 by the adhesive 51. Further, the adhesive 51 permeating the back surface side of the base plate 11 through the screw shaft opening 14 and the through hole 15 temporarily fixes the base plate 11 to the floor slab. After that, screws are attached to the base plate screw holes 11A as required to firmly fix the base member 10 to the floor slab. Thus, the base member 10 is attached and fixed to the floor slab.

  Thereafter, as shown in FIG. 4D, the lock base 30 is fixed to the pedestal 21 of the pedestal 20. Subsequently, the end portion of the floor panel (not shown) is laid on the pedestal portion 21 and the screw portion 42 of the lock plate 40 is screwed into the screw receiving portion 33 of the lock base 30, and the base portion 31 of the lock base 30 and the lock plate 40 The floor panel is pinched and tightened by the cap 41 of FIG. Thus, double floor construction is performed.

  In the double floor support leg 1 according to this embodiment, when the support leg 1 is fixed to the floor slab, the height adjustment of the support leg 1 is performed, and after the height adjustment, the sleeve 22 of the pedestal 20 is the base It is fixed to the screw shaft 12 of the member 10. At this time, in the support leg 1, a groove portion 13 along the axial direction of the screw shaft 12 is formed on the outer peripheral surface of the screw shaft 12 erected on the base plate 11. Therefore, as shown in FIG. 4C, when the adhesive 51 is injected from the top surface of the screw shaft 12, the injected adhesive 51 spreads along the groove portion 13 formed in the outer peripheral surface of the screw shaft 12, It penetrates between the screw shaft 12 and the sleeve 22. Since the pedestal 20 is fixed to the base member 10 by the adhesive 51, it is not necessary to perform an operation of fixing the pedestal 20 to the base member 10 separately using, for example, a stop bolt. Therefore, the burden placed on the worker at the time of work can be reduced. Further, since the groove portion 13 is formed in plural so as to be separated in the circumferential direction of the screw shaft 12, the sleeve 22 can be reliably fixed to the screw shaft 12 by the adhesive 51.

  Further, the operation of pouring the adhesive can be performed from the upper side of the base member 10. For this reason, it is not necessary for the operator to squat low and work as in the construction of the stop bolt. Therefore, it is possible to further reduce the burden on the worker at the time of work. Furthermore, since the work of the support structure can be performed from the top to the bottom, it is possible to facilitate future correspondence of automation construction.

  Further, since the groove 13 is formed by being cut away from the top of the screw shaft 12, the work of pouring the adhesive into the groove can be reliably performed from above the screw shaft. Further, through holes 15 are formed in the screw shaft 12 and the base plate 11 along the axial direction of the screw shaft. Therefore, since the adhesive can be spread to the back surface side of the base plate 11 through the through holes 15, the burden on the operator at the time of operation can be further reduced.

  As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to said embodiment, It can change suitably in the range which does not deviate from the meaning. For example, although three grooves 13 are formed along the outer peripheral surface of the screw shaft 12 in the above embodiment, one, two, or four or more grooves may be traced. In addition, these grooves may be formed not at equal intervals.

  Moreover, although the through hole 15 is formed in the screw shaft 12 in the above embodiment, the through hole may not be formed. Moreover, although the groove part 13 is entirely formed in the outer peripheral surface of the screw shaft 12, a part is formed inside the screw shaft 12, and a part is formed exposed on the outer peripheral surface of the screw shaft 12. It may be

  Further, in the above embodiment, the lock base 30 and the lock plate 40 are provided on the upper part of the support leg 1, but the lock base and the lock plate may not be provided. In the above embodiment, the height adjustment of the support leg 1 is performed by screwing the sleeve 22 into the screw shaft 12. However, heights other than the screw height adjustment mechanism using the screw shaft 12 and the sleeve 22 are used. A height adjustment mechanism may be used.

Reference Signs List 1 (dual floor) support leg 10 base member 11 base plate 11A base plate screwing hole 12 screw shaft 13 groove 14 screw shaft opening 15 through hole 20 pedestal 21 pedestal 21A pedestal screwing hole 22 sleeve 23 cushion 24 pedestal Opening 30 Lock base 31 Base portion 31A Lock base Screwing hole 32 Partition plate 33 Screw receiving portion 40 Lock plate 41 Cap 42 Screw portion 50 Adhesive container 51 Adhesive M (double floor) support structure

Claims (5)

A double floor support leg for holding the floor panel at a predetermined height in a double floor comprising floor panels and floor slabs,
It has a base plate mounted on the floor slab, and a screw shaft is provided upright on the base plate,
A double floor support leg characterized in that a groove along the axial direction of the screw shaft is formed on the outer peripheral surface of the screw shaft.   The double floor support leg according to claim 1, wherein the groove portion is formed by being notched from the top of the screw shaft.   The double floor support leg according to claim 1 or 2, wherein a through hole penetrating the screw shaft and the base plate is formed.   The double floor support leg according to any one of claims 1 to 3, wherein a plurality of the groove portions are formed spaced apart in the circumferential direction of the screw shaft. Placing the double floor support legs of any one of claims 1 to 4 on a floor slab,
After the adhesive is injected into the groove,
A floor panel is fixed to the screw shaft, and the floor panel is held by the support legs of the double floor by fixing the screw shaft to the floor panel.

Images