JP3835336B2

JP3835336B2 - Double floor support legs

Info

Publication number: JP3835336B2
Application number: JP2002115878A
Authority: JP
Inventors: 秀和吉田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2002-04-18
Filing date: 2002-04-18
Publication date: 2006-10-18
Anticipated expiration: 2022-04-18
Also published as: JP2003314045A

Description

【０００１】
【発明の属する技術分野】
本発明は、スラブ上に立設して床材を支持するための二重床の支持脚に関するものである。
【０００２】
【従来の技術】
従来からスラブ上に立設して床材を支持するための二重床の支持脚は防振性を考慮してゴムよりなる防振材を設けていた。そして、従来は衝撃−変位（ばね定数）が直線比例する防振材により衝撃を受けていたので、床衝撃音対策として防振材を柔らかくすると床の沈み込みが大きくなり、床の沈み込みを抑えるために防振材を硬くすると床衝撃音対策が十分でないという問題がある。そして、床衝撃音レベルには、スプーン落下音やスリッパ歩行時の音などを対象とした軽量床衝撃音と、子供の飛び跳ね音などを対象とした重量床衝撃音があるが、従来においては両方を良くするようにすることは困難であった。つまり、軽量床衝撃音対策としてゴムより成る防振材を軟らかくすると、重量床衝撃音の際における床の沈み込みが大きくなってしまい、また、重量衝撃の際に床の沈み込みを小さくするため防振材を硬くすると軽量床衝撃に対して効果が発揮できないという問題があった。
【０００３】
【発明が解決しようとする課題】
本発明は上記の点に鑑みてなされたものであり、防振材の衝撃−変位特性が直線的でなくなって、軽量衝撃に対して効果を発揮すると共に、重量衝撃の際の沈み込みを抑制することができる二重床の支持脚を提供することを課題とするものである。
【０００４】
【課題を解決するための手段】
上記課題を解決するために本発明に係る二重床の支持脚は、スラブ１上に立設する支持脚２の脚部７の上端部に設けたトッププレート９の上面の対向する一対又は２対の辺に沿って床材３の質量を受けるとともに軽量衝撃を吸収するための第１の弾性部５を設け、床材３を載設する床パネル受け１１を第１の弾性部５の上面に配設し、トッププレート９の上面の第１の弾性部５よりも内側位置に第１の弾性部５の沈み込み量が所定の沈み込み量以上となった際に重量衝撃を吸収する第２の弾性部６を設け、トッププレート９の上面の中央部に金属製のストッパ１０を設け、第１の弾性部５の上面を第２の弾性部６の上面よりも上方に位置させ、ストッパ１０の上面を第２の弾性部６の上面よりも下方に位置させて成ることを特徴とするものである。このような構成とすることで、衝撃−変位特性が床材３の質量を受けた状態で軽量衝撃を受けた際に第１の弾性部５により軽量衝撃を吸収する場合と、第１の弾性部５の沈み込み量が所定の沈み込み量以上となった際に重量衝撃を吸収する第２の弾性部６で重量衝撃を吸収する場合とで異ならせることができ、床衝撃音の改善と床沈み込みの抑制とを同時に図ることができ、しかも、第２の弾性部６の沈み込みが最大の沈み込み量となると床パネル受け１１がストッパ１０に当たって床材３がそれ以上沈み込まないものである。
【０００５】
また、第１の弾性部５の沈み込み量が所定の沈み込み量以上となった際に床材３からの衝撃を受ける支持面積を増加して第２の弾性部６を構成することが好ましい。このような構成とすることで、第１の弾性部５と第２の弾性部６とにおける床材３からの衝撃を受ける支持面積を調整することで、簡単な構成で軽量衝撃音対策、重量衝撃音対策を効果的に行えるものである。
【０００６】
また、第１の弾性部５と第２の弾性部６との材料を変えることが好ましい。このような構成とすることで、第１の弾性部５と第２の弾性部６との材料を選択することで、簡単な構成で軽量衝撃音対策、重量衝撃音対策を効果的に行えるものである。
【０００７】
また、床材３の質量を受けて第１の弾性部５が沈み込んでいる第１の弾性部５の沈み込み位置から重量衝撃の吸収のために第２の弾性部６が沈み込む最大沈み込み位置までを３ｍｍ以内とし、床材３の質量を受けて第１の弾性部５が沈み込んでいる位置から第２の弾性部６の沈み込み開始位置までを１．５ｍｍ以内とすることが好ましい。このような構成とすることで、最大沈み込み量を３ｍｍとして床沈み込みを抑制しながら、この３ｍｍという範囲内で効果的に床衝撃音の改善ができるものである。
【０００８】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【０００９】
図１には本発明の二重床の支持脚２を建物のスラブ１上に設置し、支持脚２により床材３を支持している状態の概略構成図が示してある。
【００１０】
支持脚２は金属製の脚部７の下端部に金属製のスラブ設置部８を設け、脚部７の上端部に金属製のトッププレート９を設けて主体が構成してあり、トッププレート９の上面には防振材４が設けてある。防振材４は、トッププレート９の上面の対向する一対又は２対の辺に沿って設けたゴムや発泡合成樹脂製の第１の弾性部５よりなる防振材４ａと、トッププレート９の上面の各第１の弾性部５よりも内側位置に設けたゴムや発泡合成樹脂製の第２の弾性部６よりなる防振材４ｂとで構成してあり、第１の弾性部５は第２の弾性部６よりも厚くて第１の弾性部５の上面が第２の弾性部６の上面よりも上方に位置している。トッププレート９の上面の中央部には金属製のストッパ１０が設けてあり、ストッパ１０の上面は第２の弾性部６の上面よりも下方に位置している。
【００１１】
第１の弾性部５の上面には木製の床パネル受け１１が配設される。この床パネル受け１１上に床材３を載設することで、床パネル受け１１を介して第１の弾性部５が床材３の質量を受けて一定量沈み込んでいる。
【００１２】
この図１のように床材３の質量を受けて第１の弾性部５が一定量沈み込んだ状態で、床材３にスプーンが落下したり、床材３上をスリッパ歩行をしたりすると軽量衝撃が発生するが、この際に発生する軽量衝撃は上記床材３の質量を受けて一定量沈み込んでいる第１の弾性部５により吸収するようになっている。この場合、床材３の質量を受けて一定量沈み込んでいる第１の弾性部５が更に軽量衝撃により沈み込むものである。一方、子供が床材３上で飛び跳ねたりすると、重量衝撃が発生するが、この際は第１の弾性部５が所定以上沈み込んで床パネル受け１１が第２の弾性部６に当たって第２の弾性部６により重量衝撃を吸収することになる。この場合、重量衝撃により第２の弾性部６が沈み込む（同時に第１の弾性部５も所定以上沈み込む）ものであり、第２の弾性部６の沈み込みが最大の沈み込み量となると床パネル受け１１がストッパ１０に当たってそれ以上は沈み込まないようになっている。
【００１３】
図２は本発明における防振材４の荷重−変位特性を示すグラフであって、縦軸が防振材４にかかる荷重、横軸が防振材４の変位を示している。図２のグラフにおいて、Ａは床材３の質量がかかっていない変位量が０を示し、Ｂは床材３の質量による第１の弾性部５の変位量（第１の弾性部５の沈み込み量）を示し、このＢが第１の弾性部５による軽量衝撃吸収の始点である。また、Ｃは軽量衝撃を吸収する場合における第１の弾性部５の所定変位量（第１の弾性部５の所定沈み込み量）を示し、ＢからＣまでの範囲で第１の弾性部５により軽量衝撃の吸収をおこなっている。このＣは床パネル受け１１が第２の弾性部６に当たって第２の弾性部６により重量衝撃を吸収する始点であり、また、Ｄは重量衝撃を吸収する場合における第２の弾性部６の最大変位量（第２の弾性部６の最大沈み込み量）を示している。
【００１４】
ここでＡからＣまでは第１の弾性部５のみが変位するもので荷重−変位特性は直線となっており、軽量衝撃を効果的に吸収できるように第１の弾性部５の床パネル受け１１からの荷重の支持面積や材料等を調整してある。また、ＣからＤまでは主に第２の弾性部６の変位により重量衝撃を吸収する領域であり、少ない沈み込み量で重量衝撃を吸収できるように第２の弾性部６の床パネル受け１１からの荷重の支持面積や材料等を調整してある。
【００１５】
図２において、ＢからＤまでの沈み込み量（つまり、床材３の質量を受けて第１の弾性部５が沈み込んでいる第１の弾性部５の軽量衝撃吸収の始点から第２の弾性部６の最大沈み込み位置までの距離）をａとするとａは３ｍｍ以内に設定してあり、また、ＢからＣまでの沈み込み量（つまり第１の弾性部５による軽量衝撃吸収の始点から第２の弾性部６による重量衝撃吸収の始点までの所定沈み込み量）はａ／２以下（１．５ｍｍ以下）であり、好ましくはａ／３以下（１ｍｍ以下）とするのが好ましく、これにより、床衝撃音の改善と床沈み込み抑制とを実現することができるものである。
【００１６】
ところで、図１においては第１の弾性部５の沈み込み量が所定の沈み込み量以上となった際に床材３からの衝撃を受ける支持面積を増加して第２の弾性部６を構成し、第１の弾性部５と第２の弾性部６とを別体とした例を示しているが、第１の弾性部５と第２の弾性部６とが一体のもので、軽量衝撃を吸収する際の床材３からの衝撃を受ける支持面積よりも、軽量衝撃を吸収のために第１の弾性部５の沈み込み量が所定量以上となった際に床材３からの衝撃を受けて重量衝撃を吸収する際の支持面積を大きくして第２の弾性部６を構成してもよい。上記のいずれの実施形態においても、軽量衝撃吸収の際の支持面積と重量衝撃吸収の際の支持面積とを調整することで、軽量衝撃音対策、重量衝撃音対策を効果的に行って床衝撃音の改善と床沈み込み量の抑制を同時に実現することが可能となる。
【００１７】
また、第１の弾性部５と第２の弾性部６との材料を変えて軽量衝撃吸収と沈み込み量との関係を調整し、また、重量衝撃吸収と沈み込み量との関係を調整してもよく、これにより簡単な構成で軽量衝撃音対策、重量衝撃音対策を効果的に行って床衝撃音の改善と床沈み込み量の抑制を同時に実現することが可能となる。
【００１８】
【発明の効果】
上記のように本発明の請求項１記載の発明にあっては、スラブ上に立設する支持脚の脚部の上端部に設けたトッププレートの上面の対向する一対又は２対の辺に沿って床材の質量を受けるとともに軽量衝撃を吸収するための第１の弾性部を設け、床材を載設する床パネル受けを第１の弾性部の上面に配設し、トッププレートの上面の第１の弾性部よりも内側位置に第１の弾性部の沈み込み量が所定の沈み込み量以上となった際に重量衝撃を吸収する第２の弾性部を設け、トッププレートの上面の中央部に金属製のストッパを設け、第１の弾性部の上面を第２の弾性部の上面よりも上方に位置させ、ストッパの上面を第２の弾性部の上面よりも下方に位置させるので、衝撃−変位特性が床材の質量を受けた状態で軽量衝撃を受けた際に第１の弾性部により軽量衝撃を吸収する場合と、第１の弾性部の沈み込み量が所定の沈み込み量以上となった際に重量衝撃を吸収する第２の弾性部で重量衝撃を吸収する場合とで異ならせることができ、従来の防振材の衝撃−変位特性が一直線であるものに比べて、軽量衝撃吸収と沈み込み量との関係、重量衝撃吸収と沈み込み量との関係を別々に調整できて床衝撃音の改善と床沈み込みの抑制とを同時に図ることができ、しかも、第２の弾性部の沈み込みが最大の沈み込み量となると床パネル受けがストッパに当たって床材がそれ以上沈み込まないものである。
【００１９】
また、請求項２記載の発明にあっては、上記請求項１記載の発明の効果に加えて、第１の弾性部の沈み込み量が所定の沈み込み量以上となった際に床材からの衝撃を受ける支持面積を増加して第２の弾性部を構成してあるので、第１の弾性部と第２の弾性部とにおける床材からの衝撃を受ける支持面積を調整することにより、簡単な構成で軽量衝撃音対策、重量衝撃音対策を効果的に行えるものである。
【００２０】
また、請求項３記載の発明にあっては、上記請求項１又は請求項２記載の発明の効果に加えて、第１の弾性部と第２の弾性部との材料を変えるので、第１の弾性部と第２の弾性部との材料を選択することにより、簡単な構成で軽量衝撃音対策、重量衝撃音対策を効果的に行えるものである。
【００２１】
また、請求項４記載の発明にあっては、上記請求項請求項１乃至請求項３のいずかに記載の発明の効果に加えて、床材の質量を受けて第１の弾性部が沈み込んでいる第１の弾性部の沈み込み位置から重量衝撃の吸収のために第２の弾性部が沈み込む最大沈み込み位置までを３ｍｍ以内とし、床材の質量を受けて第１の弾性部が沈み込んでいる位置から第２の弾性部の沈み込み開始位置までを１．５ｍｍ以内とするので、最大沈み込み量を３ｍｍとして床沈み込みを抑制しながら、この３ｍｍというの範囲内で効果的に床衝撃音の改善が図れるものである。
【図面の簡単な説明】
【図１】本発明の二重床の支持脚を建物のスラブ上に設置し、支持脚により床材を支持している状態の概略構成図である。
【図２】同上の防振材の荷重−変位特性を示すグラフである。
【符号の説明】
１スラブ
２支持脚
３床材
４防振材
５第１の弾性部
６第２の弾性部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a support leg for a double floor for standing on a slab and supporting a flooring.
[0002]
[Prior art]
Conventionally, the support legs of the double floor for standing on the slab and supporting the floor material have been provided with a vibration-proof material made of rubber in consideration of the vibration-proof property. Conventionally, since the impact-displacement (spring constant) has been impacted by a vibration isolating material that is linearly proportional, if the vibration isolating material is softened as a measure against floor impact noise, the floor sinks will increase, and the floor sinks. If the anti-vibration material is hardened to suppress it, there is a problem that the floor impact sound countermeasure is not sufficient. The floor impact sound level includes a lightweight floor impact sound for spoon falling sounds and slipper walking sounds, and a heavy floor impact sound for children's jumping sounds. It was difficult to improve. In other words, softening a rubber anti-vibration material as a measure against lightweight floor impact noise increases the sinking of the floor during heavy floor impact noise, and also reduces the sinking of the floor during heavy impact. If the vibration isolator is hardened, there is a problem that the effect cannot be exerted against the lightweight floor impact.
[0003]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and the impact-displacement characteristics of the vibration-proof material are not linear, exhibiting an effect on a lightweight impact, and suppressing sinking during a weight impact. It is an object of the present invention to provide a double floor support leg that can be used.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the support legs of the double floor according to the present invention are a pair or two opposing upper surfaces of the top plate 9 provided at the upper end portion of the leg portion 7 of the support leg 2 standing on the slab 1. A first elastic part 5 for receiving the mass of the flooring 3 along the pair of sides and absorbing a light impact is provided, and the floor panel receiver 11 on which the flooring 3 is placed is connected to the upper surface of the first elastic part 5. And a first shock absorber that absorbs a weight impact when the amount of subsidence of the first elastic part 5 is greater than or equal to a predetermined amount of subsidence inside the first elastic part 5 on the upper surface of the top plate 9 . Two elastic portions 6 , a metal stopper 10 is provided at the center of the upper surface of the top plate 9, the upper surface of the first elastic portion 5 is positioned above the upper surface of the second elastic portion 6, The upper surface of the stopper 10 is positioned below the upper surface of the second elastic portion 6. is there. By adopting such a configuration, when the light-weight shock is absorbed by the first elastic portion 5 when the light-weight shock is received while the shock-displacement characteristic receives the mass of the flooring 3, the first elasticity When the amount of subsidence of the portion 5 exceeds a predetermined amount of subsidence, the second elastic part 6 that absorbs the weight impact can be different from the case of absorbing the weight impact, and the floor impact sound can be improved. The floor subsidence can be suppressed simultaneously, and when the subsidence of the second elastic portion 6 reaches the maximum subsidence amount, the floor panel receiver 11 hits the stopper 10 and the flooring 3 does not sink further. It is.
[0005]
Further, it is preferable to configure the second elastic portion 6 by increasing the support area that receives an impact from the flooring 3 when the amount of subsidence of the first elastic portion 5 exceeds a predetermined amount of subsidence. . By adopting such a configuration, the impact area from the floor material 3 in the first elastic portion 5 and the second elastic portion 6 is adjusted to adjust the support area, thereby reducing the weight and impact noise with a simple configuration. It can effectively prevent impact noise.
[0006]
Moreover, it is preferable to change the material of the 1st elastic part 5 and the 2nd elastic part 6. FIG. By adopting such a configuration, by selecting materials for the first elastic portion 5 and the second elastic portion 6, it is possible to effectively take measures against lightweight impact sounds and weight impact sounds with a simple configuration. It is.
[0007]
In addition, the maximum sinking of the second elastic part 6 sinking in order to absorb the weight impact from the sinking position of the first elastic part 5 receiving the mass of the flooring 3 and the first elastic part 5 sinking. The distance from the position where the first elastic portion 5 sinks to the position where the second elastic portion 6 sinks from the position where the first elastic portion 5 sinks due to the mass of the flooring 3 is within 1.5 mm. preferable. With such a configuration, the floor impact sound can be effectively improved within the range of 3 mm while suppressing the floor sinking by setting the maximum sinking amount to 3 mm.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0009]
FIG. 1 is a schematic configuration diagram showing a state in which a support leg 2 of a double floor according to the present invention is installed on a slab 1 of a building and a floor material 3 is supported by the support leg 2.
[0010]
The support leg 2 has a metal slab installation portion 8 at the lower end portion of the metal leg portion 7 and a metal top plate 9 at the upper end portion of the leg portion 7. An anti-vibration material 4 is provided on the upper surface. The anti-vibration material 4 includes an anti-vibration material 4 a formed of a first elastic portion 5 made of rubber or foamed synthetic resin, and a top plate 9. It is comprised with the vibration proof material 4b which consists of the rubber | gum provided in the inner position rather than each 1st elastic part 5 of an upper surface, and the 2nd elastic part 6 made from a foaming synthetic resin, and the 1st elastic part 5 is the 1st It is thicker than the second elastic portion 6 and the upper surface of the first elastic portion 5 is located above the upper surface of the second elastic portion 6. A metal stopper 10 is provided at the center of the upper surface of the top plate 9, and the upper surface of the stopper 10 is positioned below the upper surface of the second elastic portion 6.
[0011]
A wooden floor panel receiver 11 is disposed on the upper surface of the first elastic portion 5. By placing the flooring 3 on the floor panel receiver 11, the first elastic portion 5 receives the mass of the flooring 3 via the floor panel receiver 11 and sinks a certain amount.
[0012]
As shown in FIG. 1, when a spoon falls on the flooring 3 or a slipper walks on the flooring 3 with the first elastic portion 5 submerged by a certain amount due to the mass of the flooring 3. Although a light impact is generated, the light impact generated at this time is absorbed by the first elastic portion 5 that receives the mass of the flooring 3 and sinks a certain amount. In this case, the first elastic part 5 that has been submerged by a certain amount due to the mass of the flooring 3 is submerged by a lighter impact. On the other hand, when the child jumps on the flooring 3, a weight impact occurs. In this case, the first elastic part 5 sinks more than a predetermined value, and the floor panel receiver 11 hits the second elastic part 6 and the second elastic part 6 falls. The elastic portion 6 absorbs the weight impact. In this case, the second elastic portion 6 sinks due to a weight impact (the first elastic portion 5 also sinks at a predetermined level or more at the same time), and the sinking of the second elastic portion 6 reaches the maximum sinking amount. The floor panel receiver 11 hits the stopper 10 so that it will not sink further.
[0013]
FIG. 2 is a graph showing the load-displacement characteristics of the vibration isolator 4 according to the present invention, where the vertical axis represents the load applied to the vibration isolator 4 and the horizontal axis represents the displacement of the vibration isolator 4. In the graph of FIG. 2, A indicates that the amount of displacement of the floor material 3 that is not applied is 0, and B indicates the amount of displacement of the first elastic portion 5 due to the mass of the floor material 3 (sink of the first elastic portion 5). This B is the starting point of light-weight shock absorption by the first elastic portion 5. C indicates a predetermined displacement amount (predetermined subsidence amount of the first elastic portion 5) when absorbing a light impact, and the first elastic portion 5 in a range from B to C. It absorbs lightweight impact. This C is a starting point where the floor panel receiver 11 hits the second elastic portion 6 and absorbs the weight impact by the second elastic portion 6, and D is the maximum of the second elastic portion 6 when absorbing the weight impact. The displacement amount (maximum sinking amount of the second elastic portion 6) is shown.
[0014]
Here, from A to C, only the first elastic portion 5 is displaced, and the load-displacement characteristic is a straight line, and the floor panel support of the first elastic portion 5 can be effectively absorbed. The support area of the load from 11 and the material are adjusted. Further, C to D are regions that absorb the weight impact mainly due to the displacement of the second elastic portion 6, and the floor panel receiver 11 of the second elastic portion 6 can absorb the weight impact with a small sinking amount. The support area and material of the load from are adjusted.
[0015]
In FIG. 2, the amount of sinking from B to D (that is, from the start point of light-weight shock absorption of the first elastic part 5 receiving the mass of the flooring 3 and sinking the first elastic part 5 to the second. If a is the distance to the maximum subsidence position of the elastic part 6, a is set within 3 mm, and the subsidence amount from B to C (that is, the starting point of light-weight shock absorption by the first elastic part 5) To a starting point of absorption of weight shock by the second elastic portion 6) is a / 2 or less (1.5 mm or less), preferably a / 3 or less (1 mm or less), Thereby, improvement of floor impact sound and suppression of floor sinking can be realized.
[0016]
By the way, in FIG. 1, when the subsidence amount of the 1st elastic part 5 becomes more than predetermined | prescribed subsidence amount, the support area which receives the impact from the flooring 3 is increased, and the 2nd elastic part 6 is comprised. However, the first elastic part 5 and the second elastic part 6 are shown as separate bodies. However, the first elastic part 5 and the second elastic part 6 are integrated, and a lightweight impact is shown. The impact from the flooring 3 when the sinking amount of the first elastic part 5 becomes a predetermined amount or more to absorb the lightweight impact than the support area receiving the impact from the flooring 3 when absorbing the water Accordingly, the second elastic portion 6 may be configured by increasing the support area when absorbing the weight impact. In any of the above embodiments, by adjusting the support area at the time of absorbing light impact and the support area at the time of absorbing heavy impact, the floor impact can be effectively performed by taking measures against light impact sound and weight impact sound. It is possible to simultaneously improve the sound and suppress the floor sinking amount.
[0017]
Further, the material of the first elastic part 5 and the second elastic part 6 is changed to adjust the relationship between the light weight shock absorption and the sinking amount, and the relationship between the weight shock absorption and the sinking amount is adjusted. Accordingly, it is possible to effectively improve the floor impact sound and suppress the floor sinking amount by effectively taking measures against the light weight impact sound and the weight impact sound with a simple configuration.
[0018]
【The invention's effect】
As described above, in the first aspect of the present invention , along the pair of opposing sides or two pairs of sides of the upper surface of the top plate provided at the upper end of the leg portion of the support leg standing on the slab. The first elastic part for receiving the weight of the flooring and absorbing the light impact is provided, and the floor panel receiver on which the flooring is placed is disposed on the upper surface of the first elastic part, A second elastic part that absorbs a weight impact when the amount of subsidence of the first elastic part becomes equal to or greater than a predetermined amount of subsidence is provided at a position inside the first elastic part, and the center of the upper surface of the top plate a metallic stopper path provided in section, the upper surface of the first elastic portion than the upper surface of the second elastic portion is positioned above, since is positioned below the upper surface of the second elastic part an upper surface of the stopper The first bullet when the impact-displacement characteristic is subjected to a light impact while receiving the mass of the flooring. A case where a light impact is absorbed by a portion, and a case where a weight impact is absorbed by a second elastic portion which absorbs a weight impact when the sinking amount of the first elastic portion exceeds a predetermined sinking amount. Compared with conventional anti-vibration materials with straight line shock-displacement characteristics, the relationship between lightweight shock absorption and sinking amount, and the relationship between weight shock absorption and sinking amount are adjusted separately. It is possible to improve the floor impact sound and suppress the floor sinking at the same time, and when the sinking of the second elastic part reaches the maximum sinking amount, the floor panel holder hits the stopper and the flooring is more than that. It is something that does not sink.
[0019]
In addition, in the invention according to claim 2, in addition to the effect of the invention according to claim 1, when the subsidence amount of the first elastic part becomes equal to or greater than a predetermined subsidence amount, Since the second elastic part is configured by increasing the support area that receives the impact of the above, by adjusting the support area that receives the impact from the floor material in the first elastic part and the second elastic part, With a simple configuration, it can effectively take measures against lightweight impact sounds and heavy impact sounds.
[0020]
Further, in the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, the materials of the first elastic part and the second elastic part are changed. By selecting the material of the elastic part and the second elastic part, it is possible to effectively take measures against lightweight impact sounds and heavy impact sounds with a simple configuration.
[0021]
In the invention according to claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, the first elastic portion receives the mass of the flooring. The first elastic part that is submerged from the subsidence position of the subsidized first elastic part to the maximum subsidence position where the second elastic part subsidizes to absorb weight shock is within 3 mm, and the first elastic member receives the mass of the flooring. Since the distance from the position where the part is subtracted to the subsidence start position of the second elastic part is within 1.5 mm, the maximum subsidence amount is set to 3 mm, while suppressing floor subsidence, within this 3 mm range The floor impact sound can be effectively improved.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic configuration diagram of a state in which a support leg of a double floor according to the present invention is installed on a slab of a building and a floor material is supported by the support leg.
FIG. 2 is a graph showing the load-displacement characteristics of the vibration isolator.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Slab 2 Support leg 3 Floor material 4 Anti-vibration material 5 1st elastic part 6 2nd elastic part

Claims

A first for receiving the mass of the flooring and absorbing the light weight impact along the opposing pair or two pairs of sides of the upper surface of the top plate provided on the upper end of the leg of the support leg standing on the slab An elastic portion is provided, and a floor panel receiver on which the floor material is placed is disposed on the upper surface of the first elastic portion, and the first elastic portion sinks inward from the first elastic portion on the upper surface of the top plate. amount providing the second elastic portion for absorbing the weight impacts upon a higher sinking amount of predetermined, the metallic stopper path provided in the central portion of the upper surface of the top plate, the top surface of the first elastic portion A double floor support leg, wherein the support leg is positioned above the upper surface of the second elastic portion, and the upper surface of the stopper is positioned below the upper surface of the second elastic portion.

The second elastic portion is formed by increasing a support area that receives an impact from the floor material when the amount of subsidence of the first elastic portion exceeds a predetermined amount of subsidence. Item 2. The double leg support leg according to Item 1.

The double leg support leg according to claim 1 or 2, wherein materials of the first elastic part and the second elastic part are changed.

The mass of the flooring is within 3 mm from the sinking position where the first elastic part sinks due to the mass of the flooring to the maximum sinking position where the second elastic part sinks to absorb the weight impact. The first elastic part is submerged and the first elastic part is submerged from the subsidence position of the first elastic part to the subsidence start position of the second elastic part. The support leg of the double floor in any one of Claim 3.