JP6364212B2 - Floor support legs and pedestals used therefor - Google Patents

Description

  The present invention relates to a floor base support leg used in the construction of a double floor structure formed on a foundation floor such as a concrete slab, and a pedestal used therefor.

  In recent years, double floor structures (dry sound insulation double floors, office floors, etc.) have been adopted in many buildings such as apartment buildings and office buildings, and there is a space between the foundation floor of concrete slabs and floor panels. The portion is formed to enhance sound insulation, and equipment piping, wiring, and the like can be provided in the space portion.

  As this type of double floor, for example, a structure using a support leg described in Patent Document 1 or Patent Document 2 is known. In these double floors, support legs are arranged on the foundation floor, and a floor panel is arranged thereon, thereby forming a space between the foundation floor and the floor panel. The support leg has a structure in which an adjuster bolt is erected vertically on a pedestal, and a square panel-like floor panel receiver is screwed to an upper end portion of the adjuster bolt.

  In such a double floor structure, the sound insulation is ensured by separating the floor panel and the foundation floor by the space, and the base of the support leg that supports the floor panel is made of an elastic member such as a vibration-proof rubber. Even when an object is dropped on the floor using a pedestal, the drop impact is attenuated to make it difficult to transmit to the foundation floor, improving sound insulation and impact mitigation performance. This type of double floor structure is used in many multi-story buildings due to the ease of construction and cost.

JP 2001-27036 A JP 2009-167611 A

By the way, there are two types of support legs of this type.
One is the base that contacts the floor panel support, adjuster bolt, and concrete slab foundation floor. It has a structure that makes it idle. The pedestal of the support leg having this structure is generally an elastic body, and rubber that can easily form a recess for fitting the flange portion at the lower end of the adjuster bolt is used.

  The advantage of this support leg is that the screwdriver is inserted into the groove formed at the upper end of the adjuster bolt and only the adjuster bolt is rotated, so that the floor panel holder fixed to the floor panel and the pedestal in contact with the concrete panel, or adhesive fixing It is possible to raise or lower the distance of the pedestal. After the floor height is adjusted, loosening can be stopped by applying an adhesive to the adjuster bolt from the top of the floor panel receiver. On the other hand, the material of the pedestal needs to be an elastic body in order to make the pedestal idle, and since it is an elastic body, there is no concern about the generation of abnormal noise due to rattling even if it is not bonded to prevent loosening. However, the load-bearing performance is limited, and since the material is an elastic body, it has little effect on the pulling force in the direction of the floor panel and the force to suppress when a long adjuster bolt swings to the left and right. This support leg is often used for a dry sound insulation double floor with sound insulation due to the structure having a base as an elastic body. Since the diameter of the flange part stored in the elastic body is as small as 15 to 20 mm due to the rotation, it is necessary to set the rubber hardness and the foaming ratio to be high in order to maintain the load bearing performance. The durometer hardness is set to 65 degrees or more. Further, in order to maintain the sound insulation performance with a high hardness, the elastic body has to be set to have a large thickness, and the floor height cannot be lowered.

  The other is that the adjuster bolt and the pedestal in contact with the concrete slab foundation floor are integrated, and the floor panel support and the adjuster bolt are screwed together by screws. The base that contacts the concrete slab foundation floor is made of metal and welded to the adjuster bolt.

  This support leg is excellent in load bearing performance because the pedestal is made of metal. The pedestal to which the adjuster bolt is welded is square or circular, and is about 70mm to 100mm in length and width. When it is fixed to the concrete slab, it can be pulled out in the direction of the floor panel. While it has a structure that is strong against the power of suppressing noise, it does not have sound insulation performance, so it requires an OA floor that complements the sound insulation with an elastic finishing material such as carpet tiles on the floor panel, and sound insulation. It is often used as a bundle of floors on the first floor of a detached house. In this method of adjusting the floor height of the support legs, since the pedestal integrated with the adjuster bolt is bonded to the concrete slab from the structure, it is necessary to rotate the floor panel holder up and down. Before fixing to the floor, it is necessary to complete the adjustment of the floor height. In order to prevent loosening after adjustment, it is necessary to prevent loosening by tightening a nut that has been screwed into the adjuster bolt from the side of the support leg in advance with a nut that is fitted to the floor panel holder using a spanner or the like. In addition, there is a disadvantage that workability is inferior, for example, fixing the floor panel is an operation after adjusting the floor height of all the support legs.

  The present invention has been made in view of such circumstances, and by adopting a resin pedestal instead of a rubber pedestal, the mechanical strength is improved while being excellent in installation workability as before, and an adjuster bolt An object of the present invention is to provide a floor base support leg that can be firmly self-supported even if the length is long and suppresses left and right swings and can be applied to an OA floor, and a pedestal used therefor.

In order to achieve the above object, the present invention provides a floor foundation support leg for supporting a floor panel on a foundation floor, and a pedestal arranged on the foundation floor, and an adjuster bolt supported perpendicularly to the pedestal. A support plate for mounting the floor panel and having an internal thread portion that engages with the adjuster bolt, and is capable of adjusting the height of the floor panel by moving up and down with the rotation of the adjuster bolt. The adjuster bolt has a flange portion formed at a lower end portion of the shaft portion, and the pedestal is made of synthetic resin, and engages the flange portion of the adjuster bolt to move the shaft portion in the axial direction. A concavity is formed that is held vertically in a constrained state, and a groove that allows the flange and the shaft to slide in the horizontal direction is formed in the concavity. Wherein and slide restraint means are provided to hold in the recess to restrain the engaged the flange portion and the slide of the shaft portion into the recess, the pedestal, the middle of the groove and the groove portion in the vertical direction A pedestal main body having a fitting hole formed so as to be pulled out and partially overlapped with the opening of the recess, and detachably fitted into the fitting hole of the pedestal main body from above The cap member is attached to the groove portion when the flange portion of the adjuster bolt slides along the groove portion and is accommodated in the recess portion. It is the structure which hold | suppresses .

  In the floor base support leg of the present invention, the flange portion and the shaft portion of the adjuster bolt are slid horizontally from the groove portion formed in the recessed portion of the pedestal, and the slide of the shaft portion is restrained by the slide restraining means. As a result, the adjuster bolt can be easily attached to the pedestal. Therefore, since this pedestal is made of synthetic resin, unlike rubber, it is hard and difficult to deform, but the adjustment bolt can be easily attached. In addition, this pedestal has high mechanical strength due to the synthetic resin and can increase the load resistance. By using a pedestal with a large area for long adjuster bolts, it suppresses blurring of the bolt top and left and right. And can be firmly supported.

  When constructing a double-floor structure, the support plate is moved up and down via the female thread by inserting a screwdriver tool into the groove on the bolt head and rotating the adjuster bolt, as with conventional rubber pedestal support legs. Since the height of the floor panel can be adjusted, the height position adjustment at the work site is easy. This is a function that is impossible with existing support legs for OA floors in which adjuster bolts are welded to a metal base.

Also, in the underfloor-supporting legs of the present invention, the pedestal is provided with elastically deformable claw portions along said groove, said slide restraint unit, the flange portion of the adjuster bolt the groove It is good also as a structure which the said nail | claw part latches to the rear end of the said flange part when it slides along and is accommodated in the said recessed part.

Moreover, it is good also as a structure by which the sheet | seat member which consists of elastic materials is provided in the lower surface of the said pedestal for the purpose of the outstanding sound insulation and impact absorption.
In that case, it is good also as a structure by which a drooping wall is provided perpendicularly in at least one part or all the circumference | surroundings of the lower surface side of the said base, and the said sheet | seat member is provided in the inner space enclosed by this dripping wall.
According to this, an impact can be relieved by the elasticity which a sheet member has, and sound insulation can also be improved. And in the case of the structure which provided the drooping wall, the position is regulated by this sheet member being provided in the inner space surrounded by the drooping wall, and displacement and peeling are prevented.
Further, since this sheet member has a large pedestal area, the area of pressure applied to the elastic body is wide, and the durometer hardness of Type A can be less than 65 degrees.

In the case of the invention in which the slide restraining means is constituted by a cap member, when the cap member is mounted on the pedestal body, at least one of the pedestal body and the cap member, the pedestal body and the cap member It is preferable that a groove for forming a gap into which a tool can be inserted is provided.
By inserting the tip of a tool such as a flathead screwdriver into the gap formed by this groove and applying an upward force to the cap member with this tool, the cap member can be removed from the base without applying a pulling force to the cap member from above. It can be easily removed and workability when adjusting bolts is improved.

Further, the pedestal used for such a support leg is arranged on the foundation floor and holds the lower end portion of the adjuster bolt of the floor base support leg, and is made of a synthetic resin, and is formed of the shaft portion of the adjuster bolt. A recess is formed to engage the flange formed at the lower end to hold the shaft vertically, and a groove is formed in the recess to allow the flange and the shaft to slide horizontally. The groove portion is provided with slide restraining means for restraining the slide of the flange portion and the shaft portion engaged in the concave portion and holding the slide in the concave portion, and the pedestal is provided in the middle of the groove portion and the groove portion. A base body having a fitting hole formed so as to be pulled out in the vertical direction and partially overlapped with the opening of the recess, and the fitting hole of the base body from above. Detachable The slide restraining means includes a cap member attached to the groove when the flange portion of the adjuster bolt slides along the groove and is received in the recess. It is the structure which hold | suppresses a flange part, It is characterized by the above-mentioned.

According to the pedestal of the present invention, the floor base support legs can be provided by combining the pedestal main body and the cap member while using ready-made adjuster bolts and support plates.
Also in the case of this pedestal, a sheet member made of an elastic material may be provided on the lower surface of the pedestal, and in that case, a hanging wall is perpendicular to at least part or all of the periphery on the lower surface side of the pedestal. The sheet member may be provided in an inner space surrounded by the hanging wall. As described above, this sheet member can have a type A durometer hardness of less than 65 degrees.

  Further, in the case of the pedestal that constitutes the slide restraining means by the cap member, when the cap member is attached to the pedestal main body, at least one of the pedestal main body and the cap member, as described above, It is good also as a structure by which the groove | channel for forming the clearance gap which can insert a tool between the base main body and the said cap member is provided.

  According to the present invention, a pedestal, an adjuster bolt, and a support plate are provided, the pedestal is made of synthetic resin, and the slide of the adjuster bolt is restrained and held in the recess by the groove formed in the recess of the pedestal main body. Since the slide restraining means is provided, the adjuster bolt can be easily incorporated even with a hard synthetic resin, the mechanical strength is high, and the load resistance can be enhanced. Further, a long adjuster bolt can be firmly supported by a pedestal having a large area, and the application range can be widened.

It is sectional drawing which shows a part of double floor structure constructed | assembled using the support leg for floor foundations and a base of 1st Embodiment of this invention. It is the perspective view which expanded the vicinity of the base in FIG. It is a top view of the base of FIG. It is sectional drawing which follows the AA line of FIG. It is a perspective view of the base main body used for the base of FIG. It is a top view of the base main body of FIG. It is sectional drawing which follows the BB line of FIG. The cap member used for the base of FIG. 2 is shown, (a) is a top view, (b) is a front view, (c) is sectional drawing which follows the CC line of (a). It is sectional drawing which shows the example using the adjuster bolt longer than FIG. It is a top view which shows the base of 2nd Embodiment of this invention. It is sectional drawing which follows the DD line | wire of FIG. It is sectional drawing which follows the EE line | wire of FIG. It is sectional drawing which follows the FF line | wire of FIG. It is sectional drawing similar to FIG. 11 which shows the state accommodated in the base of FIG. It is sectional drawing which decomposes | disassembles and shows the modification of a base main body. It is a perspective view from the lower surface which shows the other modification of a base main body. It is sectional drawing which shows the other example of a sheet | seat member. It is sectional drawing which shows the further another modification of a base main body.

DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a floor base support leg and a base according to the present invention will be described with reference to the drawings.
The embodiment of the present invention has appropriate hardness and flexibility, which is strong in both the pressurization direction and the pulling direction, in order to achieve both the opposite advantages and disadvantages of the support legs of the two structures described in the prior art. By using a resin-made idle structure, the floor height can be adjusted by rotating the groove provided at the upper end of the adjuster bolt with a screwdriver or hexagon wrench even after the floor panel is installed. Although it is a resin material, it is a slide storage system from the side of the pedestal so that the flange part provided at the lower end of the adjuster bolt can be stored in the pedestal formed of resin, and by the pressure of the top plate part at the top of the slide, With a structure that does not cause rattling noise that cannot be solved between metal members even without adjusting the bolts and bonding the adjuster bolts. To have.

Slide the adjuster bolt flange from the side of the pedestal in the resin pedestal storage part and place it in the center. It is possible to control the pull-out strength of the adjuster bolt in the floor panel direction (axial direction) when bonded to the slab and to the left and right of the long adjuster bolt. Due to the large area of the base of the pedestal, it is possible to exceed the limits of the hardness and thickness of the elastic body for improving the sound insulation, which occurs from the limit of the diameter of the flange at the lower end of the adjuster bolt.
Hereinafter, some embodiments will be described in detail.

First, a first embodiment of the present invention will be described.
As shown in FIG. 1, floor foundation support legs (hereinafter simply referred to as support legs) 3, which are anti-vibration adjusters for supporting the floor panel 2, are vertically and horizontally arranged on a foundation floor 1 made of a concrete slab. A space portion 4 is formed between the foundation floor 1 and the floor panel 2 by being erected so that a plurality of them are arranged at regular intervals, and the floor panel 2 is disposed on the support legs 3. A double floor structure is constructed. This double floor structure is constructed, for example, for a dry sound insulation double floor for an apartment house.

  The floor panel 2 is composed of a base panel 2a and a finishing panel 2b which is a surface flooring disposed thereon. The base panel 2a is made of a particle board in which wood chip obtained from waste material or the like is hardened with an adhesive. The finishing panel 2b is arranged using the base panel 2a as a base material.

  In the double floor structure described above, the pedestal 10 disposed on the foundation floor 1, the adjuster bolt 11 supported perpendicularly to the pedestal 10, and the floor panel 2 are placed on the support leg 3 of the present invention. The support plate 12 is provided.

  The support plate 12 includes a square panel block 14 having a through hole 13 formed in the center thereof, and a female screw member 15 that is integrally fixed to the through hole 13 and can be screwed to the adjuster bolt 11. An adhesive tape (not shown) for fixing the floor panel 2 is provided on the upper surface of the block 14. The female screw member 15 has a flange-shaped annular protrusion 16 formed at the center in the length direction thereof, and an internal thread portion 17 that engages with the adjuster bolt 11 on the inner peripheral surface. The block 14 is integrally fixed while being exposed on the lower surface side.

  The adjuster bolt 11 may be a general metal bolt usually used in this type of double floor structure, and is provided in various lengths and types. A male screw portion is formed on the shaft portion 18 of the adjuster bolt 11 over substantially the entire circumference except for its lower end portion, and the female screw portion 17 of the support plate 12 is screwed to the male screw portion. An insertion groove portion 19 having a cross shape in a plan view in which a tool such as a Phillips screwdriver can be inserted is formed at the upper end portion of the shaft portion 18, and the tool is engaged with the insertion groove portion 19 to rotate around the axis. Thus, the adjuster bolt 11 can be rotated. A flange portion 21 is integrally formed at the lower end portion of the shaft portion 18.

  On the other hand, the support plate 12 is provided so as to be movable up and down in accordance with the rotation operation of the adjuster bolt 11, whereby the height of the floor panel 2 is provided so that the height of the floor panel 2 from the foundation floor 1 can be adjusted. It is possible to adjust to a predetermined construction height by finely adjusting. The ends of the plurality of floor panels 2 are placed on the support plate 12 and a gap 20 is formed between the floor panels 2 as shown in FIG. The tool is disposed so as to be inserted into the insertion groove 19 through the gap 20. Therefore, even after the base panel 2a of the floor panel 2 is laid, the person can rest on the base panel 2a and the adjuster bolt 11 can be rotated from the gap 20 to adjust the vertical.

The pedestal 10 is provided to hold the lower end portion of the adjuster bolt 11 of the support leg 3, and as shown in an enlarged manner in FIG. 2 and subsequent figures, for example, polypropylene, polyacetal (trade name: Duracon etc.), nylon, ABS resin The pedestal main body 35 and the cap member 40 attached to the pedestal main body 35 are made of hard resin such as.
As shown in FIGS. 5 to 7, the pedestal main body 35 is integrally formed with a protruding portion 38 that protrudes upward at the central portion of the base plate portion 37, and opens upward at the central portion of the protruding portion 38. The recess 30 is formed so that the inner diameter of the opening 32 provided on the upper side is smaller than the inner diameter of the flat space 33 provided so as to spread horizontally on the inner side of the protrusion 38. As a result, the upper and lower two-stage shape is obtained (see FIG. 7: the upper and lower two-stage shape of the opening 32 and the flat space portion 33). Further, the flat space portion 33 is provided in a circular shape that is substantially the same as or slightly larger than the outer diameter of the flange portion 21, and the opening portion 32 is provided in a circular shape that is substantially the same as or slightly larger than the outer diameter of the base end portion of the shaft portion 18. The flange portion 21 is engaged with the internal flat space portion 33, and the base end portion of the shaft portion 18 is engageable with the opening portion 32, so that the shaft portion 18 is held vertically. As a result, the adjuster bolt 11 is rotatably supported in the recess 30 of the pedestal main body 35 and is accommodated in a state in which it cannot be moved upward by the top plate portion 36 forming the small-diameter opening 32.

Moreover, the opening part 32 and the flat space part 33 are opened to one side (front side in FIG. 6) in the recessed part 30, and the width of the diameter from each semicircular part of the opening part 32 and the flat space part 33 is provided. A groove portion 31 that opens to the side is formed, and the flange portion 21 and the shaft portion 18 are slidable in the horizontal direction via the groove portion 31.
In addition, a fitting hole 41 for fitting the cap member 40 detachably is formed in the middle of the groove 31. The fitting hole portion 41 is formed in an elliptical shape in plan view, and partially overlaps both the opening portion 32 and the flat space portion 33 of the recess 30 so that the middle of the groove portion 31 is pulled out in the vertical direction. It is formed to be continuous.
As shown in FIG. 8, the cap member 40 is formed into an elliptical block shape in plan view using, for example, polypropylene, polyacetal (trade name: Duracon, etc.), nylon, and ABS resin, which are the same material as the base body 35. The fitting hole 41 is detachably fitted.
Note that the outer shape of the pedestal main body 35 may be other than the quadrangular shape shown in the figure, for example, a hexagonal shape, an octagonal shape, or a circular shape, and the cap member 40 and the fitting hole portion 41 are also elliptical in plan view. Other than the shape, a quadrangular shape, a polygonal shape, a circular shape, or the like can be used.

  Further, arc-shaped concave portions 45 and 46 are provided on the side portion of the cap member 40 so as to constitute a part of the concave portion 30 of the pedestal main body 35. The concave portions 45, 46 are formed in a two-stage shape, that is, a small arc concave portion 45 having the same radius of curvature as the opening 32 of the pedestal main body 35 and a large arc concave portion 46 having the same radius of curvature as the flat space portion 33. Yes. When the cap member 40 is fitted into the fitting hole 41 of the pedestal main body 35, the portion lacking by the fitting hole 41 is filled with the cap member 40, and both the opening 32 and the flat space portion 33 of the pedestal main body 35 are filled. The concave portion 30 of the pedestal 10 is formed in a circular shape in plan view, and the top plate portion 36 of the pedestal main body 35 and the top plate portion 47 of the cap member 40 are continuously arranged in an inward flange shape. By fitting the cap member 40 from above the pedestal main body 35 in this manner, the slide in the upward and lateral directions of the flange portion 21 and the shaft portion 18 engaged in the recessed portion 30 is restrained, and the adjuster bolt 11 is recessed. 30 is held in a state where it can rotate around the shaft portion 18 and is prevented from coming off.

A groove 43 is provided on the bottom side of the cap member 40. As shown in FIG. 2, when the cap member 40 is mounted on the pedestal main body 35, the tip of a tool such as a flat-blade screwdriver is inserted between the base plate 37 of the pedestal main body 35 and the cap main body 40 by the groove 43. Possible slit-like gaps are formed.
In FIG. 1, a sound insulating material 50 may be disposed on the foundation floor 1 between the support legs in order to improve the sound insulating performance. The sound insulating material 50 is made of glass wool, rock wool, non-woven fabric, polystyrene foam, polystyrene foam or the like.

In the floor base support leg configured as described above, the cap member 40 that restrains and holds the slide of the flange portion 21 and the shaft portion 18 of the adjuster bolt 11 is detachably provided in the groove portion 31 of the base body 35. Therefore, if the cap member 40 is attached to the base body 35 after the adjuster bolt 11 is attached to the recess 30 from the groove 31 of the base body 35, the adjuster bolt 11 can be attached to the base 10 in a rotatable state. In this case, since the flange portion 21 and the shaft portion 18 are mounted in the recess 30 by sliding from the groove portion 31, if the flange portion 21 can be mounted in the recess 30, even a long size bolt can be easily mounted. .
And after attaching in this way, the adjuster bolt 11 is restrained from moving in the length direction and the direction perpendicular thereto, and is firmly held so as not to come off the base 10.

Moreover, since the base 10 is formed of a hard synthetic resin, unlike a rubber base, it has excellent mechanical strength, and even in the case of a long adjuster bolt 11 as shown in FIG. It can be firmly supported.
The groove 43 of the cap member 40 forms a slit-like gap between the pedestal main body 35 and the cap member 40. Therefore, the cap member 40 can be easily removed from the pedestal main body 35 by inserting a tool into the gap. be able to. Therefore, the adjuster bolt 11 once assembled can be removed and reattached, and the adjuster bolt 11 of a desired length and type is incorporated in the pedestal main body 35 in the field according to the height of the double floor structure. It can be used, and the workability on site is greatly improved.
Although the adjuster bolt 11 is made of metal, since the pedestal main body 35 and the cap member 40 are made of resin, there is no possibility that metal noise such as floor noise will occur after the construction of the double floor structure.

Note that, as indicated by a two-dot chain line in FIG. 4, a sheet member 65 made of an elastic material such as polyurethane, silicon, or rubber may be attached to the lower surface of the pedestal main body 35. By attaching the sheet member 65, the sound insulation can be improved. In this case, the seat member 65 is a separate member from the pedestal main body 35, and mechanical strength that can support the adjuster bolt 11 is not necessary. Will increase.
Further, as described above, since the pedestal 10 is formed of a hard synthetic resin, the area of the pedestal 10 can be made considerably larger than the plane area of the flange portion 21 of the adjuster bolt 11, and the lower surface thereof can be reduced. The sheet member 65 can also be made of type A rubber or foam having a durometer hardness of less than 65 degrees.

10 to 13 show a second embodiment of the present invention.
In the first embodiment of FIGS. 1 to 12, the pedestal 10 is composed of two parts, a pedestal main body 35 and a cap member 40, and the cap member 40 is fitted to the pedestal main body 35, whereby the adjuster bolt 11 is laterally moved ( In the second embodiment shown in FIGS. 10 to 13, the pedestal 100 is composed of only one part, and the pedestal 100 is provided with an adjuster bolt. Eleven drop-off prevention means are formed.
This pedestal 100 is formed of a hard resin such as polypropylene, polyacetal (trade name: Duracon, etc.), nylon, ABS resin, as in the first embodiment.

A concave portion 30 that opens upward is formed in the central portion of the flat space portion 33 provided so that the inner diameter of the opening portion 32 provided on the upper side extends horizontally in the inner side. By being provided smaller than the inner diameter, it has an upper and lower two-stage shape. Further, the flat space portion 33 is provided in a circular shape that is substantially the same as or slightly larger than the outer diameter of the flange portion 21, and the opening portion 32 is provided in a circular shape that is substantially the same as or slightly larger than the outer diameter of the base end portion of the shaft portion 18. The flange portion 21 is engaged with the internal flat space portion 33, and the base end portion of the shaft portion 18 is engageable with the opening portion 32, so that the shaft portion 18 is held vertically. As a result, the adjuster bolt 11 is rotatably supported in the recess 30 of the base 100 and is accommodated in a state where it cannot be moved upward by the top plate portion 36 forming the small-diameter opening 32.
Moreover, the opening part 32 and the flat space part 33 are opened to the one side by the recessed part 30, and the side is opened by the width | variety of the diameter from the semicircle part of the opening part 32 and the flat space part 33, respectively. A groove portion 31 is formed, and the flange portion 21 and the shaft portion 18 are slidable in the horizontal direction via the groove portion 31.

  A claw portion 102 is formed in the base plate portion 37 of the pedestal 100 by drawing a U-shaped slit 101 in a part of the base plate portion 37 in the thickness direction. The claw portion 102 is formed in a strip shape along the length direction of the groove portion 31, and can be elastically deformed by being formed thinner than the base plate portion 37. While being connected integrally, the front-end | tip is orient | assigned to the exit side of the groove part 31. FIG. And the hook part 103 which protrudes from the upper surface of the base board part 37 is integrally formed in the front-end | tip part. The two-dot chain line in the figure shows the outline of the flange portion 21 when the flange portion 21 of the adjuster bolt 11 is accommodated in the recess 30, and the hook portion 103 is in a position to be locked to the flange portion 21. Is provided.

  Therefore, when the flange portion 21 of the adjuster bolt 11 is slid on the base plate portion 37 along the groove portion 31, the base 100 shows the hook portion 103 of the claw portion 102 protruding from the upper surface of the base plate portion 37. (B) and FIG. (C) in order, the claw portion 102 is elastically deformed while being pushed down, and when the claw portion 102 is moved over the hook portion 103, the hook portion 103 is returned to the original position. The rear end of the flange portion 21 is locked. Accordingly, the adjuster bolt 11 is restrained from sliding on the groove portion 31 and is held in a state of being accommodated in the flat space portion 33 of the recess 30. Therefore, in the present embodiment, the claw portion 102 constitutes a drop prevention means for restraining the slide of the adjuster bolt 11.

Of course, since the shape of the recess 30 is the same as that of the first embodiment, the flange portion 21 of the adjuster bolt 11 accommodated in the flat space portion 33 is prevented from coming off in the axial direction by the top plate portion 36. It is accommodated in 30 so as to be rotatable about an axis.
In the second embodiment, the pedestal 100 alone can restrain the adjuster bolt 11 from sliding and prevent it from coming off in the axial direction, and the number of parts can be reduced as compared with the first embodiment.

FIG. 15 shows a modification of the pedestal body of the first embodiment or the pedestal of the second embodiment. Hereinafter, although referred to as a pedestal main body, it may be combined with the cap member 40 as in the first embodiment, or may have a structure having the claw portion 102 like the pedestal in the second embodiment.
In this pedestal main body 60, a hanging wall 61 for positioning is provided vertically on the lower surface side, and a sheet member 65 is fixed to an inner space 62 surrounded by the hanging wall 61. In this case, the hanging wall 61 may be formed perpendicularly in four directions so as to surround the entire lower surface side of the pedestal 60, but is formed on three sides of the four sides on the lower surface side of the pedestal 60. It may be formed perpendicular to a part.

  The sheet member 65 is formed into a sheet shape thicker than the height of the hanging wall 61 by an elastic material such as rubber of type A durometer hardness of less than 65 degrees, and is adhered to the lower surface of the pedestal 60 with a double-sided tape or the like. By providing the seat member 65, cushioning properties are exhibited and vibration from the floor panel 2 is absorbed. Since the sheet member 65 is surrounded by the drooping wall 61, the side surface abuts on the drooping wall 61 and is positioned in the lateral direction to prevent displacement. Therefore, even if the floor panel 2 is placed and shifted laterally in a state where a load is applied, the sheet member 65 is prevented from being displaced from the pedestal main body 60 or turned over and dropped, and workability on the site is improved. . Furthermore, the sheet member 65 may be fixed to the pedestal 60 with an adhesive, and can be made more difficult to shift.

FIG. 16 shows still another modification of the pedestal main body. The pedestal main body 70 has a groove 71 formed on the lower surface, and can be firmly fixed on the foundation floor 1 by injecting an adhesive into the groove 71 before or after installation on the foundation floor 1. .
FIG. 17 shows another example of the sheet member, and an uneven portion 76 is formed on the lower surface of the sheet member 75. The sheet member 75 can further improve shock absorption and sound insulation by disposing the surface on which the concavo-convex portion 76 is formed on the foundation floor 1.

  FIG. 18 shows a further modification of the pedestal body. In the pedestal main body 80, a plurality of pins 82 are erected on the sheet member 81, and the pins 82 are inserted into through holes 83 formed in the pedestal main body 80, and the pin 82 is prevented from being detached by a head 84 having an enlarged diameter. As a result, the sheet member 81 is fixed to the inner space 62 of the hanging wall 61 of the base body 80.

In addition, this invention is not limited to the said embodiment, A various change can be added in the range which does not deviate from the meaning of this invention.
In the embodiment, an example of construction for a dry sound insulation double floor for an apartment house is shown, but it is also possible to use for an office such as a free access floor and an OA floor.
In the above-described embodiment, the groove 43 is formed in the cap member 40 so that the tool insertion gap is formed when the cap member 40 is incorporated into the pedestal body. However, the groove may be formed in the pedestal body. Good. Or it is good also as a structure which forms in both a cap member and a base body, and when a cap member is integrated in a base body, both groove | channels match and a clearance gap is formed.

DESCRIPTION OF SYMBOLS 1 Base floor 2 Floor panel 10, 60, 100 Base 11 Adjuster bolt 12 Support plate 17 Female thread part 18 Shaft part 21 Flange part 30 Recessed part 31 Groove part 32 Opening part 33 Flat space part 35 Base main body 36 Top plate part 37 Base plate part 38 Projection 40 Cap member 43 Groove 61 Dripping wall 62 Inner space 65 Sheet member 70 Base body 71 Groove 75 Sheet member 76 Concavity and convexity 80 Base body 81 Sheet member 82 Pin 83 Through hole 84 Head 102 Claw part 103 Hook part

Claims (12)

A floor base supporting leg for supporting a floor panel on a foundation floor, a pedestal disposed on the foundation floor, an adjuster bolt supported vertically on the pedestal, and the adjuster bolt for mounting the floor panel And a support plate capable of adjusting the height of the floor panel by moving up and down with the rotation of the adjuster bolt, and the adjuster bolt has a lower end of its shaft portion. A flange portion is formed on the portion, and the pedestal is made of synthetic resin, and a recess is formed to hold the shaft portion vertically while engaging the flange portion of the adjuster bolt to restrain the axial movement. The flange portion is formed in the recess so that the flange portion and the shaft portion are slidable in a horizontal direction, and the flange portion is engaged with the groove portion in the recess. Slide restraint means for holding in the recess to restrain the sliding of the fine the shaft portion is provided,
The pedestal includes a pedestal body having a fitting hole formed so that the groove and the middle of the groove are pulled out in a vertical direction and partially overlapped with the opening of the recess, and The slide restraining means is accommodated in the recess by sliding the flange portion of the adjuster bolt along the groove portion. The cap restraining member is detachably fitted into the fitting hole portion of the base body from above. The floor base support leg , wherein the cap member is sometimes attached to the groove to hold the flange .   The pedestal is provided with an elastically deformable claw portion along the groove portion, and the slide restraining means is configured such that the flange portion of the adjuster bolt slides along the groove portion and is accommodated in the recess portion. The floor leg support leg according to claim 1, wherein the claw part is sometimes engaged with a rear end of the flange part. Claim 1 or 2 underfloor supporting leg, wherein the sheet member made of an elastic material to the lower surface of the pedestal is provided. Wherein at least a portion or all the hanging wall around the lower surface side of the base is provided vertically, the inner space surrounded by the hanging wall, according to claim 3, wherein said sheet member is provided Support legs for flooring. 5. The floor base support leg according to claim 3, wherein the sheet member has a durometer hardness of type A of less than 65 degrees. At least one of the pedestal main body and the cap member is formed with a gap into which a tool can be inserted between the pedestal main body and the cap member when the cap member is mounted on the pedestal main body. underfloor-supporting legs according to claim 1, wherein a groove in is provided. It is placed on the foundation floor and holds the lower end of the adjuster bolt of the floor base support leg, made of synthetic resin, and engaged with the flange formed on the lower end of the shaft of the adjuster bolt A concave portion is formed to hold the shaft portion vertically in a state in which movement in the axial direction is constrained, and a groove portion that allows the flange portion and the shaft portion to slide in the horizontal direction is formed in the concave portion. A slide restraining means for restraining the slide of the flange portion and the shaft portion engaged in the recess and holding the slide in the recess ;
The pedestal includes a pedestal body having a fitting hole formed so that the groove and the middle of the groove are pulled out in a vertical direction and partially overlapped with the opening of the recess, and The slide restraining means is accommodated in the recess by sliding the flange portion of the adjuster bolt along the groove portion. The cap restraining member is detachably fitted into the fitting hole portion of the base body from above. The support leg pedestal characterized in that the cap member is sometimes attached to the groove to hold the flange . The pedestal is provided with an elastically deformable claw portion along the groove portion, and the slide restraining means is configured such that the flange portion of the adjuster bolt slides along the groove portion and is accommodated in the recess portion. The support leg base according to claim 7 , wherein the claw portion is sometimes engaged with a rear end of the flange portion. Support legs pedestal according to claim 7 or 8, wherein the sheet member made of an elastic material to the lower surface of the pedestal is al provided. The hanging wall is vertically provided on at least a part or all of the periphery on the lower surface side of the pedestal, and a sheet member made of an elastic material is provided in an inner space surrounded by the hanging wall. 9. A support leg base according to item 9 . The pedestal for supporting legs according to claim 9 or 10, wherein said sheet member has a durometer hardness of Type A of less than 65 degrees. At least one of the pedestal main body and the cap member is formed with a gap into which a tool can be inserted between the pedestal main body and the cap member when the cap member is mounted on the pedestal main body. The support leg base according to claim 7 , wherein a groove is provided.

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