JPH0579172A - Response control floor - Google Patents

Response control floor

Info

Publication number
JPH0579172A
JPH0579172A JP24623191A JP24623191A JPH0579172A JP H0579172 A JPH0579172 A JP H0579172A JP 24623191 A JP24623191 A JP 24623191A JP 24623191 A JP24623191 A JP 24623191A JP H0579172 A JPH0579172 A JP H0579172A
Authority
JP
Japan
Prior art keywords
floor surface
fixed
floor
seismic isolation
overhanging
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP24623191A
Other languages
Japanese (ja)
Other versions
JP3112722B2 (en
Inventor
Tatsuo Shoji
辰夫 庄司
Seiji Shimura
誠二 志村
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Naka Technical Laboratory Co Ltd
Naka Corp
Original Assignee
Naka Technical Laboratory Co Ltd
Naka Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Naka Technical Laboratory Co Ltd, Naka Corp filed Critical Naka Technical Laboratory Co Ltd
Priority to JP03246231A priority Critical patent/JP3112722B2/en
Publication of JPH0579172A publication Critical patent/JPH0579172A/en
Application granted granted Critical
Publication of JP3112722B2 publication Critical patent/JP3112722B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Floor Finish (AREA)

Abstract

PURPOSE:To move a response control floor surface smoothly in the case an earthquake occurs and to prevent a boundary section between a fixed floor surface and the response control floor surface from varying. CONSTITUTION:A response control floor is so constituted that an overhanging floor surface 5 is formed in a boundary section between a response control floor surface 2 and a fixed floor surface 3. The overhanging floor surface 5 is placed in a state to mount a supported section 7 on a sliding support section 6 provided to the circumferential edge section of the fixed floor surface 3, and frictional resistance between the overhanging floor surface 5 and the fixed floor surface 3 when the response control floor surface 2 is moved in the case of an earthquake is reduced as soon as possible. In the case an earthquake occurs, the overhanging floor surface 5 follows the response control floor surface 2 to move only in a horizontal direction, and jumps, etc., are prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、建築物の床スラブ上に
配設され、地震等による水平方向の振動を減衰させるた
めの免震床に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seismic isolation floor which is disposed on a floor slab of a building and which damps horizontal vibration due to an earthquake or the like.

【0002】[0002]

【従来の技術】一般に免震床は、図8に示すように、床
スラブ1に対して変位する免震床面2と、該床スラブ1
に対して固定される固定床面3と、上記免震床面2が変
位可能なように固定床面3との間に形成される隙間4を
閉塞するための張り出し床面5とから構成される。
2. Description of the Related Art Generally, as shown in FIG. 8, a seismic isolation floor has a seismic isolation floor surface 2 which is displaced relative to a floor slab 1 and the floor slab 1.
And a fixed floor surface 3 fixed to the fixed floor surface 3 and an overhanging floor surface 5 for closing a gap 4 formed between the seismic isolation floor surface 2 and the fixed floor surface 3 so as to be displaceable. It

【0003】そして、従来、張り出し床面5は、図8
(b)に示すように、その一側縁が免震床面2にヒンジ
連結されていた。
Conventionally, the overhanging floor surface 5 is shown in FIG.
As shown in (b), one side edge of the seismic isolation floor surface 2 was hinged.

【0004】[0004]

【発明が解決しようとする課題】しかし、上述した従来
例において、一端縁が免震床面2から張り出される張り
出し床面5は、一側端縁部が固定床面3を摺りながら摺
動する仕様となっているために、該固定床面3との摺動
抵抗の設定が難しく、かつ、経時的に摺動抵抗が変化
し、その管理が難しい上に、地震の際に図8(b)にお
いて破線で示すように、跳ね上げられるために、避難
や、台車の運行を妨げる危険があり、さらに、免震床面
2との連結を蝶番構造とする必要があり製造、あるいは
施工が面倒であるという欠点を有するものであった。
However, in the above-mentioned conventional example, one edge of the overhanging floor surface 5 which is projected from the seismic isolation floor surface 2 slides while one end edge slides on the fixed floor surface 3. It is difficult to set the sliding resistance with the fixed floor surface 3 and the sliding resistance changes over time, and it is difficult to manage the sliding resistance. As shown by the broken line in b), there is a risk of hindering evacuation and operation of the dolly because it is bounced up. Furthermore, it is necessary to connect to the seismic isolated floor surface 2 with a hinge structure, and manufacturing or construction work It had a drawback of being troublesome.

【0005】本発明は、以上の欠点を解消すべくなされ
たものであって、地震発生時において円滑に免震床面が
移動し、かつ、固定床面と免震床面との境界部の状態が
変化しない免震床を提供することを目的とする。
The present invention has been made to solve the above-mentioned drawbacks. The seismic isolation floor surface moves smoothly in the event of an earthquake, and the boundary portion between the fixed floor surface and the seismic isolation floor surface is The purpose is to provide a base-isolated floor whose state does not change.

【0006】[0006]

【課題を解決するための手段】本発明によれば上記目的
は、実施例に対応する図1に示すように、床スラブ1に
対して相対移動可能な免震床面2と、前記免震床面2を
囲むようにして配置され、前記床スラブ1と一体の固定
床面3と、前記免震床面2の周縁から張り出されて前記
固定床面3との隙間4を閉塞する張り出し床面5とを有
し、前記固定床面3の免震床面2側の周縁部上面には、
滑り支承部6を設け、前記張り出し床面5は、裏面に設
けられた被支承部7において前記滑り支承部6上に滑動
自在に支承される免震床を提供することにより達成され
る。
According to the present invention, the above object is to provide a seismic isolation floor surface 2 movable relative to a floor slab 1 as shown in FIG. A fixed floor surface 3 that is arranged so as to surround the floor surface 2 and is integral with the floor slab 1, and a projecting floor surface that projects from the periphery of the seismic isolation floor surface 2 and closes a gap 4 between the fixed floor surface 3 5 and the upper surface of the peripheral edge of the fixed floor surface 3 on the seismic isolation floor surface 2 side,
A sliding bearing 6 is provided, and the overhanging floor surface 5 is achieved by providing a seismic isolation floor slidably supported on the sliding bearing 6 in a supported portion 7 provided on the back surface.

【0007】[0007]

【作用】本発明において、免震床面2と固定床面3との
境界部には、張り出し床面5が装着され、免震床面2が
移動可能なように固定床面3との間に形成される隙間4
が閉塞される。上記張り出し床面5は、固定床面3の周
縁部に設けられた滑り支承部6上に被支承部7を載置し
た状態で配設され、固定床面3上を円滑に摺動する。
In the present invention, the projecting floor surface 5 is attached to the boundary between the seismic isolation floor surface 2 and the fixed floor surface 3, and the seismic isolation floor surface 2 is movable between the fixed floor surface 3 and the fixed floor surface 3. Gap 4 formed in
Is blocked. The overhanging floor surface 5 is arranged in a state in which the supported portion 7 is placed on the sliding bearing portion 6 provided on the peripheral portion of the fixed floor surface 3, and slides smoothly on the fixed floor surface 3.

【0008】この結果、張り出し床面5と固定床面3と
の間の摩擦抵抗を考慮する必要がなくなるので、地震強
度に対する振れ幅の設定、および管理が容易になる。さ
らに、地震発生時には、張り出し床面5は、免震床面2
に追随して横方向のみに移動し、跳ね上がり等が防止さ
れる。
As a result, it becomes unnecessary to consider the frictional resistance between the overhanging floor surface 5 and the fixed floor surface 3, so that it becomes easy to set and manage the swing width with respect to the earthquake intensity. Furthermore, when an earthquake occurs, the overhanging floor surface 5 is the seismic isolation floor surface 2
Following this, it moves only in the lateral direction and prevents jumps and the like.

【0009】[0009]

【実施例】以下、本発明の望ましい実施例を添付図面に
基づいて詳細に説明する。先ず、本発明が適用された免
震床の全体構成を図1ないし図3により説明する。免震
床は、床スラブ1に対して相対移動自在なスライド構造
体11と、このスライド構造体11上に形成される免震
床面2と、この免震床面2を囲むように壁面12に沿っ
て形成される固定床面3と、上記免震床面2から張り出
される張り出し床面5とから構成されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. First, the overall structure of a seismic isolation floor to which the present invention is applied will be described with reference to FIGS. 1 to 3. The seismic isolation floor includes a slide structure 11 that is movable relative to the floor slab 1, a seismic isolation floor surface 2 formed on the slide structure 11, and a wall surface 12 that surrounds the seismic isolation floor surface 2. It is composed of a fixed floor surface 3 formed along the above and a projecting floor surface 5 projecting from the seismic isolation floor surface 2.

【0010】スライド構造体11は、床スラブ1上に固
定された低摩擦部材13上に滑動自在に支承される移動
脚14を連結杆15で連結して一体構造としたもので、
各移動脚14の上端には、パネルずれ止め用の突起16
を有するパネル支持板17が固着されている。また、こ
のスライド構造体11は、一端が床スラブ1に連結され
る複数の引張スプリング18により壁面12側に付勢さ
れており、部屋の中央部に位置決めされる。
The slide structure 11 is an integrated structure in which movable legs 14 slidably supported on a low friction member 13 fixed on the floor slab 1 are connected by a connecting rod 15.
At the upper end of each moving leg 14, a protrusion 16 for preventing panel shift is provided.
A panel support plate 17 having is attached. The slide structure 11 is biased toward the wall surface 12 by a plurality of tension springs 18 having one end connected to the floor slab 1, and is positioned at the center of the room.

【0011】免震床面2は、上記スライド構造体11上
に固定される複数のフロアパネル19、19・・からな
り、各フロアパネル19は、四隅部がパネル支持板17
上に支承され、かつ衝合隅角部がパネル支持板17に連
結される連結キャップ20に押し付けられた状態で装着
されている。
The seismic isolation floor surface 2 is composed of a plurality of floor panels 19, 19 ... Fixed on the slide structure 11. Each floor panel 19 has a panel support plate 17 at four corners.
It is mounted in a state in which it is supported on the top and the abutting corners are pressed against the connection cap 20 connected to the panel support plate 17.

【0012】しかして、地震発生時には、上記免震床面
2、およびその上に設置されている機器の慣性により、
免震床面2は、床スラブ1上を滑りながら原位置に留ま
ろうとし、機器への衝撃を吸収するとともに、低摩擦部
材13上におけるスライド構造体11の滑動による振幅
地震エネルギーの摩擦減衰が行われる。
However, when an earthquake occurs, due to the inertia of the seismic isolated floor surface 2 and the equipment installed thereon,
The seismic isolation floor surface 2 tries to stay in the original position while sliding on the floor slab 1, absorbs the impact to the equipment, and also reduces the friction of the amplitude seismic energy due to the sliding of the slide structure 11 on the low friction member 13. Is done.

【0013】一方、固定床面3は、床スラブ1上に固定
された固定脚21上に複数のフロアパネル19、19・
・を固定して形成され、上記免震床面2を囲むように設
置される。また、この固定床面3と免震床面2の外周縁
との間には、隙間4が設けられ、免震床面2の移動範囲
が確保されるとともに、該固定床面3の内周縁近傍に
は、ポリアミドイミド等、低摩擦材料からなる滑り支承
部6が設けられる。
On the other hand, the fixed floor surface 3 has a plurality of floor panels 19, 19 on a fixed leg 21 fixed on the floor slab 1.
・ It is formed by fixing and is installed so as to surround the seismic isolation floor surface 2. Further, a gap 4 is provided between the fixed floor surface 3 and the outer peripheral edge of the seismic isolation floor surface 2 to secure the movement range of the seismic isolation floor surface 2, and the inner peripheral edge of the fixed floor surface 3. A slide bearing 6 made of a low friction material such as polyamide-imide is provided in the vicinity.

【0014】一方、張り出し床面5は、複数のスライド
パネル8をジョイント部材9により連結して構成されて
おり、上記固定床面3と免震床面2との間の隙間4を閉
塞するように、固定床面3に覆い被さるような状態で免
震床面2から張り出されている。
On the other hand, the overhanging floor surface 5 is constituted by connecting a plurality of slide panels 8 with a joint member 9 so as to close the gap 4 between the fixed floor surface 3 and the seismic isolation floor surface 2. In addition, the seismically isolated floor surface 2 is projected so as to cover the fixed floor surface 3.

【0015】上記スライドパネル8は、図4、5に詳細
に示すように、上記フロアパネル19よりも薄板のパネ
ル体22と、このパネル体22の裏面中央部に例えばス
テンレス板等を貼着して形成される被支承部7と、上記
パネル体22の一側縁に装着されるエッジ材23と、上
記スライド構造体11のパネル支持板17に対応して設
けられる複数のセッター24、24・・と、これらセッ
ター24間に固定される補強材25とから構成されてい
る。
As shown in detail in FIGS. 4 and 5, the slide panel 8 has a panel body 22 that is thinner than the floor panel 19, and a stainless plate or the like is attached to the center of the rear surface of the panel body 22. Supported portion 7 formed by the above, an edge member 23 attached to one side edge of the panel body 22, and a plurality of setters 24, 24 provided corresponding to the panel support plate 17 of the slide structure 11. And a reinforcing member 25 fixed between these setters 24.

【0016】この実施例において、セッター24は、フ
ロアパネル19よりも薄く形成されるスライドパネル8
を、フロアパネル19と同様に連結キャップ20を使用
して固定することができるように、下方に膨隆する底板
材26を有しており、図6に示すように、セッター24
の底板材26をパネル支持板17上に載せた後、フロア
パネル19を固定する連結キャップ20を締め付けるだ
けで、フロアパネル19が免震床面2の最外周部のフロ
アパネル19に連結されるように構成される。
In this embodiment, the setter 24 is a slide panel 8 formed thinner than the floor panel 19.
Has a bottom plate member 26 that bulges downward so that it can be fixed using the connection cap 20 similarly to the floor panel 19, and as shown in FIG.
After mounting the bottom plate member 26 on the panel support plate 17, the floor panel 19 is connected to the floor panel 19 at the outermost periphery of the seismic isolated floor surface 2 only by tightening the connection cap 20 for fixing the floor panel 19. Is configured as follows.

【0017】以上のようにして免震床面2に連結された
スライドパネル8は、図1および図7に示すように、固
定床面3上の滑り支承部6により被支承部7が支承され
た状態となっており、免震床面2が移動する際の固定床
面3との摩擦を可及的に少なくしている。
As shown in FIGS. 1 and 7, the slide panel 8 connected to the seismic isolation floor 2 as described above bears the supported portion 7 by the slide bearing 6 on the fixed floor 3. The friction with the fixed floor surface 3 when the seismic isolation floor surface 2 moves is reduced as much as possible.

【0018】また、上記スライドパネル8同士を連結す
るジョイント部材9は、両側方に開設したパネル挿入開
口27、27にパネルを挟みこむように構成されてお
り、スライドパネル8の連結部における浮き上がり等を
防止している。
Further, the joint member 9 for connecting the slide panels 8 to each other is constructed so as to sandwich the panels in the panel insertion openings 27, 27 opened on both sides, so as to prevent the slide panel 8 from rising at the connecting portion. To prevent.

【0019】さらに、上記スライドパネル8上には、通
常、機器等は設置されないが、機器搬入時等にスライド
パネル8に過大な付加が加えられた際に、該スライドパ
ネル8の基端部、あるいは、パネル体22が変形しない
ように、ジョイント部材9の裏面には支持突片10が突
設されており、同様に理由で、図1(b)に示すよう
に、エッジ材23の裏面にも支持突起28が設けられて
いる。
Further, although no device or the like is usually installed on the slide panel 8, when an excessive addition is added to the slide panel 8 at the time of carrying in the device, the base end portion of the slide panel 8, Alternatively, the support projection 10 is provided on the back surface of the joint member 9 so as not to deform the panel body 22, and for the same reason, as shown in FIG. Is also provided with a support protrusion 28.

【0020】[0020]

【発明の効果】以上の説明から明らかなように、本発明
による免震床によれば、免震床面から張り出される張り
出し床面を固定床面に設けた滑り支承部において滑動自
在に支承したので、張り出し床面と固定床面との間の摩
擦が少なくなり、免震床面を円滑に移動させることがで
きる。
As is apparent from the above description, according to the seismic isolated floor of the present invention, the sliding bearing portion provided with the overhanging floor surface projecting from the seismic isolation floor surface on the fixed floor surface is slidably supported. Therefore, the friction between the overhanging floor surface and the fixed floor surface is reduced, and the seismic isolated floor surface can be moved smoothly.

【0021】また、上記固定床面との摩擦を考慮する必
要がないので、免震床の地震時の振れ等を正確に把握す
ることができる。さらに、上記張り出し床面は、固定床
面の滑り支承部上を平行に滑動するために、地震時の跳
ね上がり等が防止され、避難時の安全性を高めることが
できる。
Further, since it is not necessary to consider the friction with the fixed floor surface, it is possible to accurately grasp the shake of the seismic isolated floor during an earthquake. Further, since the above-mentioned overhanging floor slides in parallel on the sliding bearing portion of the fixed floor, jumping up at the time of an earthquake is prevented, and safety during evacuation can be enhanced.

【0022】また、張り出し床面を複数のスライドパネ
ルにより形成する場合において、各スライドパネルをジ
ョイント部材により連結すると、スライドパネルの連結
部における浮き上がり、あるいはスライドパネルの反り
等を確実に防止することができる。
Further, when the overhanging floor surface is formed by a plurality of slide panels, if each slide panel is connected by a joint member, it is possible to surely prevent the slide panel from being lifted up at the connecting portion or warping of the slide panel. it can.

【0023】さらに、上記ジョイント部材の裏面に支持
突片を設けた場合には、張り出し床面の変形等を確実に
防止することができる。
Further, when the supporting projection is provided on the back surface of the joint member, it is possible to reliably prevent the overhanging floor surface from being deformed.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の要部を示す説明図であり、(a)は断
面図、(b)は(a)のA部詳細図である。
FIG. 1 is an explanatory view showing a main part of the present invention, in which (a) is a cross-sectional view and (b) is a detailed view of an A part of (a).

【図2】免震床の全体構成を示す斜視図である。FIG. 2 is a perspective view showing the overall structure of a seismic isolation floor.

【図3】免震床面の境界部を示す斜視図である。FIG. 3 is a perspective view showing a boundary portion of a seismic isolation floor surface.

【図4】スライドパネルを裏面から見た斜視図である。FIG. 4 is a perspective view of the slide panel as viewed from the back side.

【図5】図4の要部拡大図である。5 is an enlarged view of a main part of FIG.

【図6】図3のB−B線断面図である。FIG. 6 is a sectional view taken along line BB of FIG.

【図7】図2のC−C線断面図である。7 is a cross-sectional view taken along line CC of FIG.

【図8】従来例を示す説明図で、(a)は免震床面の周
縁部を示す断面図、(b)は(a)の要部拡大図であ
る。
8A and 8B are explanatory views showing a conventional example, in which FIG. 8A is a sectional view showing a peripheral portion of a base isolation floor surface, and FIG. 8B is an enlarged view of a main portion of FIG. 8A.

【符号の説明】[Explanation of symbols]

1 床スラブ 2 免震床面 3 固定床面 4 隙間 5 張り出し床面 6 滑り支承部 7 被支承部 8 スライドパネル 9 ジョイント部材 10 支持突片 1 Floor slab 2 Seismic isolation floor surface 3 Fixed floor surface 4 Gap 5 Overhanging floor surface 6 Sliding bearing portion 7 Bearing portion 8 Slide panel 9 Joint member 10 Supporting protrusion

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】床スラブに対して相対移動可能な免震床面
と、 前記免震床面を囲むようにして配置され、前記床スラブ
と一体の固定床面と、 前記免震床面の周縁から張り出されて前記固定床面との
隙間を閉塞する張り出し床面とを有し、 前記固定床面の免震床面側の周縁部上面には、滑り支承
部を設け、 前記張り出し床面は、裏面に設けられた被支承部におい
て前記滑り支承部上に滑動自在に支承される免震床。
1. A seismic isolation floor surface that is movable relative to a floor slab, a fixed floor surface that is arranged so as to surround the seismic isolation floor surface, and is integral with the floor slab, and a peripheral edge of the seismic isolation floor surface. It has an overhanging floor surface that overhangs and closes the gap with the fixed floor surface, and a sliding bearing portion is provided on the peripheral edge upper surface of the fixed floor surface on the seismic isolation floor surface side, and the overhanging floor surface is , A seismic isolated floor which is slidably supported on the sliding bearing portion on a supported portion provided on the back surface.
【請求項2】前記張り出し床面は、複数のスライドパネ
ルをジョイント部材により連結して構成され、かつ、前
記ジョイント部材の裏面には、支持突片を突設してなる
請求項1記載の免震床。
2. The exemption according to claim 1, wherein the overhanging floor surface is formed by connecting a plurality of slide panels by a joint member, and a supporting projection is provided on the back surface of the joint member. Tremor.
JP03246231A 1991-09-25 1991-09-25 Seismic isolation floor Expired - Fee Related JP3112722B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP03246231A JP3112722B2 (en) 1991-09-25 1991-09-25 Seismic isolation floor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP03246231A JP3112722B2 (en) 1991-09-25 1991-09-25 Seismic isolation floor

Publications (2)

Publication Number Publication Date
JPH0579172A true JPH0579172A (en) 1993-03-30
JP3112722B2 JP3112722B2 (en) 2000-11-27

Family

ID=17145466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP03246231A Expired - Fee Related JP3112722B2 (en) 1991-09-25 1991-09-25 Seismic isolation floor

Country Status (1)

Country Link
JP (1) JP3112722B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100980387B1 (en) * 2008-07-11 2010-09-07 비젼아이디앤씨(주) Vibration Damper Structure for Access Floor
KR102026714B1 (en) * 2019-04-26 2019-09-30 주식회사 에스앤와이시스템 Access Floor with Seismic Isolator with Link Device between Activation Area and Deactivation Area

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100980387B1 (en) * 2008-07-11 2010-09-07 비젼아이디앤씨(주) Vibration Damper Structure for Access Floor
KR102026714B1 (en) * 2019-04-26 2019-09-30 주식회사 에스앤와이시스템 Access Floor with Seismic Isolator with Link Device between Activation Area and Deactivation Area

Also Published As

Publication number Publication date
JP3112722B2 (en) 2000-11-27

Similar Documents

Publication Publication Date Title
JPH0579172A (en) Response control floor
JP4305948B2 (en) Damping device for structures
KR102027987B1 (en) A reading desk
JP2004150231A (en) Expansion joint
JPH11344077A (en) Base isolation table
JP3888887B2 (en) Seismic isolation device
JPH0882081A (en) Noise insulating floor device
JPH0528273Y2 (en)
JP2016151278A (en) Vibration control device
JPH0874927A (en) Vibration damping device
JP2847094B2 (en) Telescopic ceiling structure
JP4202635B2 (en) Seismic isolation device and cover unit
JPH054510Y2 (en)
JPH0526192Y2 (en)
JP2002070945A (en) Base isolation device
JP7252669B1 (en) Floor joint device
JPH07127305A (en) Omnidirectional friction-damping response-control rubber bearer
JP2001173212A (en) Border panel support and panel supporting structure
JPH0526191Y2 (en)
JPH076338Y2 (en) Displacement absorber around seismic isolation floor
JPH0571239A (en) Vibration control apparatus built in frame
JP2021052976A (en) Wiring duct structure and desk comprising the same
JP3941329B2 (en) Seismic isolation device
JP3997752B2 (en) Furniture front-end prevention device
JPH02289759A (en) Sound insulating floor device

Legal Events

Date Code Title Description
FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 7

Free format text: PAYMENT UNTIL: 20070922

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 8

Free format text: PAYMENT UNTIL: 20080922

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 9

Free format text: PAYMENT UNTIL: 20090922

FPAY Renewal fee payment (prs date is renewal date of database)

Year of fee payment: 10

Free format text: PAYMENT UNTIL: 20100922

LAPS Cancellation because of no payment of annual fees