JP2000034823A - Tatami bed and tatami mat - Google Patents
Tatami bed and tatami matInfo
- Publication number
- JP2000034823A JP2000034823A JP10202467A JP20246798A JP2000034823A JP 2000034823 A JP2000034823 A JP 2000034823A JP 10202467 A JP10202467 A JP 10202467A JP 20246798 A JP20246798 A JP 20246798A JP 2000034823 A JP2000034823 A JP 2000034823A
- Authority
- JP
- Japan
- Prior art keywords
- tatami
- polypropylene
- tatami floor
- laminated
- core material
- 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
Links
Landscapes
- Floor Finish (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、畳床及び畳に関す
る。特に、軽量で防火性に優れ、畳床のカットや縫着が
容易で、従来の加工道具で加工でき、かつ反りの少ない
畳床に関するものである。The present invention relates to a tatami floor and a tatami mat. In particular, the present invention relates to a tatami floor which is lightweight, has excellent fire resistance, is easy to cut and sew a tatami floor, can be processed by a conventional processing tool, and has a small warp.
【０００２】[0002]
【従来の技術】畳は、畳床と畳表から構成されている、
即ち、畳床の上面に畳表を縫着してなるものである。と
ころで、畳床としては近年に至るまで、主として藁が使
用されてきた。しかし、畳床原料としての藁の入手が次
第に困難となってきたこと、また重い藁製の畳床は運搬
や施工に不便なため、藁に替えて粉砕した木屑を固めた
インシュレーションファイバーボードがいわゆる畳床の
芯として使用されるようになった。さらに、このインシ
ュレーションファイバーボードに替えてより軽量なポリ
スチレン発泡体の採用が試みられている。しかし、ポリ
スチレン発泡体は軽量であるもののそれ自体からなる芯
のみでは、荷重に耐えられず凹んでしまうことからベニ
ヤ板が補強材として同時に使用されるようになった。こ
のようなベニヤ板を用いた畳としては、特開平７−２１
７６３号公報が挙げられる。2. Description of the Related Art A tatami mat is composed of a tatami floor and a tatami mat.
That is, a tatami mat is sewn on the upper surface of the tatami floor. By the way, straw has been mainly used as a tatami floor until recently. However, it has become increasingly difficult to obtain straw as a raw material for tatami floors, and heavy straw tatami floors are inconvenient for transportation and construction. It has come to be used as the core of so-called tatami floors. Further, attempts have been made to employ a lighter polystyrene foam instead of the insulation fiber board. However, although the polystyrene foam is lightweight, the core made of itself cannot withstand a load and is dented, so that the plywood has been used as a reinforcing material at the same time. A tatami mat using such a plywood is disclosed in JP-A-7-21.
No. 763 gazette.
【０００３】[0003]
【発明が解決しようとする課題】かかるベニヤ板を使用
した畳床は、畳および畳床の制作時に一般に使用される
包丁などの従来の道具では切断できず、また縫着も困難
なことから現場での作業に難点を有していた。また、ベ
ニヤ板は、湿度や温度の影響により反りが生じるという
問題点を有していた。A tatami floor using such a plywood cannot be cut with conventional tools such as kitchen knives generally used in the production of tatami mats and tatami floors. Had difficulties in the work. In addition, the plywood has a problem that warping is caused by the influence of humidity and temperature.
【０００４】また、合成樹脂製材料を用いる畳床の場合
には、易燃性になる場合もあり、防火性にさらなる配慮
が必要な場合がある。そこで、本発明の目的は、軽量で
防火性に優れ、畳床のカットや縫着が容易で、従来の加
工道具で加工でき、かつ反りの少ない畳床を提供するこ
とにある。[0004] In the case of a tatami floor using a synthetic resin material, the flammability may be increased, and further consideration may be required for fire prevention. Therefore, an object of the present invention is to provide a tatami floor which is lightweight, has excellent fire resistance, is easy to cut and sew a tatami floor, can be processed with a conventional processing tool, and has a small warp.
【０００５】[0005]
【課題を解決するための手段】本発明者等は、上記の事
情に鑑み、鋭意検討した結果上記問題点を解決する畳床
および畳を開発するに至った。即ち本発明は、先ず、ポ
リプロピレンまたはポリエチレン発泡体からなる補強
材、不燃性または難燃性シート及び芯材を有する畳床に
係るものである。Means for Solving the Problems In view of the above circumstances, the present inventors have made intensive studies and have developed a tatami floor and a tatami mat which solve the above problems. That is, the present invention first relates to a tatami floor having a reinforcing material made of polypropylene or polyethylene foam, a non-combustible or flame-retardant sheet, and a core material.
【０００６】次に、本発明は、芯材の上下面に、ポリプ
ロピレンまたはポリエチレン発泡体からなる補強材をそ
れぞれ積層し、また、上方の該補強材の上部に不燃性ま
たは難燃性シートを積層し、これらを一体接合してなる
畳床に係るものである。また、本発明は、芯材の上面
に、ポリプロピレンまたはポリエチレン発泡体からなる
補強材を、芯材の下面に、熱可塑性樹脂からなる補強材
をそれぞれ積層し、また、上方の該補強材の上部に不燃
性または難燃性シートを積層し、これらを一体接合して
なる畳床に係るものである。Next, according to the present invention, a reinforcing material made of a polypropylene or polyethylene foam is laminated on the upper and lower surfaces of the core material, respectively, and a non-combustible or flame-retardant sheet is laminated on the upper part of the reinforcing material. Further, the present invention relates to a tatami floor formed by integrally joining these. Also, the present invention provides a reinforcing member made of a polypropylene or polyethylene foam on an upper surface of a core material, a reinforcing material made of a thermoplastic resin on a lower surface of the core material, and an upper portion of the upper reinforcing material. The present invention relates to a tatami floor which is formed by laminating non-combustible or flame-retardant sheets on a floor and integrally joining them.
【０００７】また、本発明は、芯材の上下面に、ポリプ
ロピレンまたはポリエチレン発泡体からなる補強材をそ
れぞれ積層し、上方の該補強材の上面に板紙を、その板
紙の上面に不燃性または難燃性シートをそれぞれ積層
し、下方の該補強材の下面に板紙を、その板紙の下面に
割布をそれぞれ積層し、これらを一体接合してなる畳床
に係るものである。The present invention also provides a reinforcing material made of a polypropylene or polyethylene foam on the upper and lower surfaces of a core material, a paperboard on an upper surface of the reinforcing material, and a nonflammable or hard-to-flame material on the upper surface of the paperboard. The present invention relates to a tatami floor obtained by laminating flammable sheets, laminating paperboard on the lower surface of the reinforcing member below, and laminating a split cloth on the lower surface of the paperboard, and joining them together.
【０００８】また、本発明は、芯材の上面に、ポリプロ
ピレンまたはポリエチレン発泡体からなる補強材を積層
し、上方の該補強材の上面に板紙を、その板紙の上面に
不燃性または難燃性シートをそれぞれ積層し、芯材の下
面に、熱可塑性樹脂からなる補強材を積層し、下方の該
補強材の下面に板紙を、その板紙の下面に割布をそれぞ
れ積層し、これらを一体接合してなる畳床に係るもので
ある。The present invention also relates to a reinforcing material made of a polypropylene or polyethylene foam laminated on the upper surface of a core material, a paperboard on the upper surface of the reinforcing material, and a nonflammable or flame-retardant material on the upper surface of the paperboard. Each sheet is laminated, a reinforcing material made of a thermoplastic resin is laminated on the lower surface of the core material, paperboard is laminated on the lower surface of the reinforcing material below, and a split cloth is laminated on the lower surface of the paperboard, and these are integrally joined. It relates to a tatami floor that is made.
【０００９】更に本発明は、これらの畳床と畳表とから
なる畳に係るものである。以下、本発明について具体的
に説明する。Further, the present invention relates to a tatami mat comprising the tatami floor and the tatami mat. Hereinafter, the present invention will be described specifically.
【００１０】[0010]
【発明の実施の態様】本発明の畳床は、ポリプロピレン
またはポリエチレン発泡体からなる補強材、不燃性また
は難燃性シート及び芯材を必須構成要件とするものであ
る。ここに、補強材とは、後述の熱可塑性樹脂発泡体等
からなる芯材のへこみ等を集中荷重の分散により防止す
る機能や、或いは縫着等により一体接合して畳床とする
ときの芯材の保護や糸の縢り止め及びタッカー止めを可
能にする役割を果たすものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The tatami floor according to the present invention includes a reinforcing material made of a polypropylene or polyethylene foam, a non-combustible or flame-retardant sheet, and a core material as essential components. Here, the reinforcing material is a function to prevent dents or the like of a core material made of a thermoplastic resin foam or the like to be described later by dispersing a concentrated load, or a core when integrally joined by sewing or the like to form a tatami floor. It plays a role in protecting the material and stopping the darning and tucking of the thread.
【００１１】本発明で使用するポリプロピレンまたはポ
リエチレン発泡体とは、ポリプロピレンまたはポリエチ
レンを物理的あるいは化学的に発泡させたものである。
本発明におけるポリプロピレン発泡体を製造する方法と
しては、公知の発泡法を適用すればよい。例えば、熱分
解型発泡剤とポリプロピレン樹脂を混合したものをホッ
パーに投入し、押出機内で樹脂溶融とともに発泡剤を分
解せしめて、樹脂と発泡ガスとを充分混練・均一化さ
せ、発泡に適した温度まで冷却・調整した後、ダイスよ
り押出して発泡させ、引取機にて冷却・成形する方法
や、熱分解型発泡剤に代わり、物理ガスを押出機内に圧
入する方法等が一般的である。The polypropylene or polyethylene foam used in the present invention is obtained by physically or chemically foaming polypropylene or polyethylene.
As a method for producing the polypropylene foam in the present invention, a known foaming method may be applied. For example, a mixture of a pyrolysis type foaming agent and a polypropylene resin is put into a hopper, the resin is melted in an extruder to decompose the foaming agent, and the resin and the foaming gas are sufficiently kneaded and homogenized to be suitable for foaming. After cooling / adjusting to a temperature, the resin is extruded from a die, foamed, and cooled / formed by a take-off machine, or a physical gas is injected into the extruder in place of a pyrolytic foaming agent.
【００１２】ポリプロピレン系樹脂は特に限定されるも
のではなく、製品用途に応じて選ぶことができ、プロピ
レンホモポリマーやエチレン等のα−オレフィンとの共
重合体等を用いることもできる。発泡剤についても特に
限定されるものではなく、重曹やアゾジカルボン酸アミ
ドなどの熱分解型発泡剤、炭酸ガス、窒素ガス、ブタン
などの物理ガスなどが使用でき、これらの併用も可能で
ある。また、気泡核剤として、タルク、シリカなどの無
機フィラーを添加することもできる。見かけ密度は発泡
剤の添加量によって概ね決定され、一般には０．８〜
０．１ｇ／ｃｃのものを用いる。The polypropylene resin is not particularly limited, and can be selected according to the product use. For example, a propylene homopolymer or a copolymer with an α-olefin such as ethylene may be used. The foaming agent is not particularly limited, and a pyrolytic foaming agent such as baking soda or azodicarboxylic acid amide, and a physical gas such as carbon dioxide, nitrogen gas, and butane can be used, and these can be used in combination. In addition, an inorganic filler such as talc or silica can be added as a cell nucleating agent. The apparent density is generally determined by the amount of the foaming agent added, and is generally 0.8 to
Use the one with 0.1 g / cc.
【００１３】ポリエチレン発泡体も上記ポリプロピレン
発泡体に準じて得ることができる。ポリエチレンとして
は、エチレンホモポリマーの他、他のα−オレフィンや
酢酸ビニル等のコポリマーを適宜使用することができ
る。発泡倍率は、使用態様に応じて適宜選択されるが、
一般には、１．１倍以上６倍以下が用いられる。発泡倍
率が１．１未満であると縫着、加工が難しくなり、一方
６倍を超えると発泡体の剛性が弱くなり好ましくない。[0013] A polyethylene foam can also be obtained according to the above-mentioned polypropylene foam. As the polyethylene, other copolymers such as α-olefin and vinyl acetate can be used as appropriate in addition to ethylene homopolymer. The expansion ratio is appropriately selected according to the usage mode,
Generally, the ratio is 1.1 times or more and 6 times or less. If the expansion ratio is less than 1.1, sewing and processing become difficult, while if it exceeds 6 times, the rigidity of the foam becomes weak, which is not preferable.
【００１４】更に、芯材の上下面に係る発泡体を補強材
教材として使用する場合には、上部のポリプロピレンま
たはポリエチレン発泡体の発泡倍率が２倍以上４倍以下
であり、下部のポリプロピレンまたはポリエチレン発泡
体の発泡倍率が１．２倍以上４倍以下であることがより
好ましい。また該下部のポリプロピレンまたはポリエチ
レン発泡体の発泡倍率は、後述する厚畳床に使用する場
合には２倍以上４倍以下であることが、薄畳床に使用す
る場合には１．２倍以上２倍以下であることが特に好ま
しい。Further, when the foams on the upper and lower surfaces of the core material are used as a teaching material for the reinforcing material, the expansion ratio of the upper polypropylene or polyethylene foam is 2 to 4 times and the lower polypropylene or polyethylene is lower. More preferably, the expansion ratio of the foam is 1.2 times or more and 4 times or less. Also, the expansion ratio of the polypropylene or polyethylene foam at the bottom is preferably 2 times or more and 4 times or less when used for a thick tatami floor described later, and 1.2 times or more when used for a thin tatami floor. It is particularly preferred that the ratio be twice or less.
【００１５】次に、本発明で使用する芯材とは、畳床の
中心部をなし、スペ−サーとして畳床に剛性、断熱性等
を付与する役目を果たす部分である。芯材としては、特
に限定されないがポリスチレン発泡体、ポリプロピレン
発泡体、ポリエチレン発泡体等の熱可塑性樹脂発泡体や
インシュレーションファイバーボード等が例示される。Next, the core material used in the present invention is a portion which forms the central portion of the tatami floor and serves as a spacer to impart rigidity, heat insulation and the like to the tatami floor. Examples of the core material include, but are not particularly limited to, a thermoplastic resin foam such as a polystyrene foam, a polypropylene foam, and a polyethylene foam, and an insulation fiber board.
【００１６】軽量化の面からは、熱可塑性樹脂発泡体が
好適に使用されるが、後述の薄畳床では、インシュレー
ションファイバーボードも好適な芯材である。熱可塑性
樹脂発泡体の発泡倍率は、使用する樹脂により適宜選択
される。たとえば、ポリプロピレン発泡体、ポリエチレ
ン発泡体の場合、その発泡倍率は、５以上１００以下が
一般に使用される。好ましくは、１０以上５０以下であ
る。これらは、前述の補強材に使用した発泡体と同様な
方法により得ることができる。From the viewpoint of weight reduction, a thermoplastic resin foam is preferably used, but for a thin tatami floor described later, an insulation fiber board is also a suitable core material. The expansion ratio of the thermoplastic resin foam is appropriately selected depending on the resin used. For example, in the case of a polypropylene foam or a polyethylene foam, the expansion ratio is generally 5 or more and 100 or less. Preferably, it is 10 or more and 50 or less. These can be obtained by the same method as the foam used for the above-mentioned reinforcing material.
【００１７】また、ポリスチレン発泡体の場合は、その
発泡倍率は、１０以上２００以下が一般に使用される。
好ましくは、２０以上６０以下である。より好ましく
は、２５以上４５以下である。次に、本発明で使用され
るインシュレーションファイバーボード等とは、ＪＩＳ
−Ａ−５９０５に規定されるタタミボード( 繊維板) を
含む。タタミボードは、ＪＩＳ−Ａ−５９０５に規定す
るハードファイバーボードやミディアムデンシティーフ
ァイバーボード等の繊維板であってもよいが、密度０．
３５ｇ／ｃｍ3以下の軟質繊維板であるインシュレーシ
ョンファイバーボードがより好適に使用される。In the case of a polystyrene foam, the expansion ratio is generally from 10 to 200.
Preferably, it is 20 or more and 60 or less. More preferably, it is 25 or more and 45 or less. Next, the insulation fiber board and the like used in the present invention are defined in JIS.
-Tatami board (fiberboard) specified in A-5905. The tatami board may be a fiber board such as a hard fiber board or a medium density fiber board specified in JIS-A-5905, but has a density of 0.
An insulation fiber board which is a soft fiber board of 35 g / cm 3 or less is more preferably used.
【００１８】本発明の不燃性または難燃性シートとは、
畳床の防火性を改善することを主目的とするものであ
り、かかる目的を達成するシートであれば特に限定され
ない。また、その形状は、フェルト、不織布や織物を問
わない。たとえば、ロックウール、セラミックウール、
ガラスウール等の繊維をフェルト状に成形した不燃性フ
ェルトや、活性炭や、特殊アクリル樹脂を原料とし、こ
れを焼成した耐炎繊維の不織布、例えばラスタン（登録
商標。旭化成工業株式会社製）の不織布が使用できる。The non-combustible or flame-retardant sheet of the present invention is:
The main purpose is to improve the fire protection of a tatami floor, and there is no particular limitation as long as the sheet achieves the purpose. In addition, the shape is not limited to felt, nonwoven fabric and woven fabric. For example, rock wool, ceramic wool,
Non-combustible felt made by molding fibers such as glass wool into a felt shape, or non-woven fabric made of activated carbon or special acrylic resin as a raw material and fire-resistant fiber such as Rastan (registered trademark; manufactured by Asahi Kasei Kogyo Co., Ltd.) Can be used.
【００１９】この中でも特殊アクリル樹脂を焼成した耐
炎繊維の不織布が好ましい。本発明の畳床は、芯材の上
下面に、ポリプロピレンまたはポリエチレン発泡体から
なる補強材をそれぞれ積層し、また、上方の該補強材の
上部に不燃性または難燃性シートを一体接合してなる構
造であることが好ましい。また、他の態様としては、芯
材の上面に、ポリプロピレンまたはポリエチレン発泡体
からなる補強材を、芯材の下面に、熱可塑性樹脂からな
る補強材をそれぞれ積層し、また、上方の該補強材の上
部に不燃性または難燃性シートを一体接合してなる構造
の畳床が挙げられる。Among them, a nonwoven fabric of flame resistant fiber obtained by firing a special acrylic resin is preferable. The tatami floor of the present invention has a reinforcing member made of a polypropylene or polyethylene foam laminated on the upper and lower surfaces of the core material, respectively, and a non-combustible or flame-retardant sheet is integrally joined to an upper portion of the reinforcing material above. It is preferable that the structure be In another embodiment, a reinforcing material made of a polypropylene or polyethylene foam is laminated on the upper surface of the core material, and a reinforcing material made of a thermoplastic resin is laminated on the lower surface of the core material, respectively. A tatami floor having a structure in which a non-combustible or flame-retardant sheet is integrally joined to the upper part of the floor.
【００２０】ここに、芯材の下面に補強材として使用さ
れる熱可塑性樹脂は、上記熱可塑性樹脂の発泡体の元と
なる未発泡の熱可塑性樹脂が代表的なものとして例示さ
れるが、補強材としての使用に適する他の熱可塑性樹脂
樹脂でも良い。たとえば、ポリエチレン、ポリプロピレ
ン、エチレン酢酸ビニル共重合体樹脂等が例示される
が、ポリプロピレンがより好適に使用される。Here, as the thermoplastic resin used as a reinforcing material on the lower surface of the core material, a non-foamed thermoplastic resin which is a base of the foamed thermoplastic resin is exemplified as a typical example. Another thermoplastic resin suitable for use as a reinforcing material may be used. For example, polyethylene, polypropylene, ethylene-vinyl acetate copolymer resin and the like are exemplified, and polypropylene is more preferably used.
【００２１】また、リサイクルの容易性の観点からは、
芯材、及び補強材は本発明の目的を損なわない範囲で同
一の樹脂からなるものであることが好ましい。また、上
記構造において下方の補強材の下部に割布を配置したも
のであることが、更に好ましい。ここに、割布とは、畳
床に美粧性、耐久性、防湿性を付与することが目的のも
のであり、例えば、ポリプロピレンクロス、ポリエチレ
ンクロス等が挙げられる、ポリプロピレン、ポリエチレ
ン等の繊維をクロスさせ、紙にラミネートさせたものが
好ましく使用できる。From the viewpoint of ease of recycling,
The core material and the reinforcing material are preferably made of the same resin as long as the object of the present invention is not impaired. Further, in the above structure, it is more preferable that a split cloth is arranged below the lower reinforcing member. Here, the split cloth is intended to impart aesthetic, durable, and moisture-proof properties to the tatami floor, and examples thereof include a polypropylene cloth and a polyethylene cloth. And laminated on paper can be preferably used.
【００２２】特に好ましい態様としては、芯材の上下面
に、ポリプロピレンまたはポリエチレン発泡体からなる
補強材をそれぞれ一体接合し、上方の該補強材の上面に
板紙を、その板紙の上面に不燃性または難燃性シートを
それぞれ一体に接合し、下方の該補強材の下面に板紙
を、その板紙の下面に割布をそれぞれ一体に接合してな
る畳床又は芯材の上面に、ポリプロピレンまたはポリエ
チレン発泡体からなる補強材をそれぞれ一体接合し、上
方の該補強材の上面に板紙を、その板紙の上面に不燃性
または難燃性シートをそれぞれ一体に接合し、芯材の下
面に、熱可塑性樹脂からなる補強材をそれぞれ一体接合
し、下方の該補強材の下面に板紙を、その板紙の下面に
割布をそれぞれ一体に接合してなる畳床である。In a particularly preferred embodiment, a reinforcing material made of a polypropylene or polyethylene foam is integrally joined to the upper and lower surfaces of the core material, respectively, a paperboard is provided on the upper surface of the reinforcing material, and a nonflammable or nonflammable material is provided on the upper surface of the paperboard. Each of the flame-retardant sheets is integrally joined, paperboard is attached to the lower surface of the reinforcing material below, and splitting cloth is joined to the lower surface of the paperboard, respectively. The reinforcing members made of a body are integrally joined, a paperboard is integrally joined to the upper surface of the upper reinforcing member, and a non-combustible or flame-retardant sheet is joined to the upper surface of the paperboard, respectively. Is a tatami floor formed by integrally joining reinforcing members made of the following, integrally joining a paperboard to a lower surface of the lower reinforcing member, and a splitting cloth to a lower surface of the paperboard.
【００２３】ここに板紙とは、畳床に吸水性、結露防止
性能を付与する目的のものである。上面の板紙には、さ
らに緩衝性を付与する目的が、下面の板紙には、一部を
カットして除去し、畳表を巻き込む時のスペースを作る
ためのスペーサーとしての目的もある。本発明の畳床の
全体の厚さは、用途によって適宜使い分ければよいが、
本発明では２１ｍｍ以上の厚さのものを厚畳床、２１ｍ
ｍ未満のものを薄畳床と称する。Here, the purpose of the paperboard is to provide the tatami floor with water absorbing and dew condensation preventing performance. The paperboard on the upper side has a purpose of further providing cushioning, and the paperboard on the lower side has a purpose as a spacer for cutting and removing a part of the paperboard to create a space for winding the tatami mat. The overall thickness of the tatami floor of the present invention may be appropriately used depending on the application,
In the present invention, a thing having a thickness of 21 mm or more is a thick tatami floor, 21 m
m is referred to as a thin tatami floor.
【００２４】一般には、全体の厚さが２１〜６０ｍｍの
ものが厚畳床として使用される。軽量でかつ剛性を有し
そりの少ない厚畳床とするためには、上方のポリプロピ
レンまたはポリエチレン発泡体からなる補強材の厚さが
２mm以上６mm以下、及び下面のポリプロピレンまたはポ
リエチレン発泡体からなる補強材あるいは熱可塑性樹脂
からなる補強材の厚さが１mm以上４mm以下であることが
好ましい。Generally, a floor having a thickness of 21 to 60 mm is used as a thick tatami floor. In order to obtain a lightweight, rigid and low warp thick tatami floor, the upper reinforcement made of polypropylene or polyethylene foam has a thickness of 2 mm or more and 6 mm or less, and the lower reinforcement made of polypropylene or polyethylene foam has Preferably, the thickness of the reinforcing material made of a material or a thermoplastic resin is 1 mm or more and 4 mm or less.
【００２５】一方、最近バリアフリー化等の観点から使
用されることが多くなった薄畳床に用いる場合には、全
体の厚さが、２０mm以下であることが好ましい。薄畳床
に用いる場合、上面のポリプロピレンまたはポリエチレ
ン発泡体からなる補強材の厚さが１mm以上４mm以下、下
面のポリプロピレンまたはポリエチレン発泡体からなる
補強材あるいは熱可塑性樹脂からなる補強材の厚さが
０．５mm以上２mm以下であることが好ましい。On the other hand, when it is used for a thin tatami floor which has recently been frequently used from the viewpoint of barrier-free, etc., the total thickness is preferably 20 mm or less. When used for thin tatami floors, the thickness of the reinforcing material made of polypropylene or polyethylene foam on the upper surface is 1 mm or more and 4 mm or less, and the thickness of the reinforcing material made of polypropylene or polyethylene foam or the reinforcing material made of thermoplastic resin on the lower surface is It is preferably 0.5 mm or more and 2 mm or less.
【００２６】本発明の畳床は、上記補強材、不燃性また
は難燃性シート、芯材や割布等を積層し、一体接合して
得られる。一体接合の方法としては縫着、接着、両面テ
ープによる方法等が挙げられるが、作業性、リサイクル
の観点から縫着による方法が好ましい。畳表としては特
に限定されないが、一般的には、い草等を麻糸等の糸で
織ったもの、又はポリプロピレン等の合成樹脂製のもの
が用いられる。The tatami floor of the present invention is obtained by laminating the above-mentioned reinforcing material, non-combustible or non-combustible sheet, core material, split cloth and the like, and joining them together. Examples of the method of integral joining include sewing, adhesion, and a method using a double-sided tape. From the viewpoint of workability and recycling, a method using sewing is preferable. Although there is no particular limitation on the tatami mat surface, generally, tatami mats or the like are woven with hemp yarns or the like or synthetic resin materials such as polypropylene are used.
【００２７】本発明を添付する図面に示す実施例に基づ
いて以下さらに具体的に説明する。図ｌに、厚さ５０〜
６０ｍｍの厚畳の一例を示す。この畳は、畳表１と畳床
２とよりなる。畳表１は、通常厚さは１〜２ｍｍ程度で
ある。畳床２は、上から下へ順に不燃性または難燃性シ
ート３、板紙４、ポリプロピレン発泡体５、ポリスチレ
ン発泡体６、ポリプロピレン発泡体７、板紙８、割布９
よりなり、縫着で一体接合されており、この畳床２は畳
表１と縫着される。The present invention will be more specifically described below based on an embodiment shown in the accompanying drawings. FIG.
1 shows an example of a 60 mm thick tatami mat. The tatami mat includes a tatami table 1 and a tatami floor 2. The tatami table 1 usually has a thickness of about 1 to 2 mm. The tatami floor 2 is composed of a non-combustible or flame-retardant sheet 3, a paperboard 4, a polypropylene foam 5, a polystyrene foam 6, a polypropylene foam 7, a paperboard 8, a split cloth 9 in order from top to bottom.
The tatami floor 2 is sewn to the tatami table 1 by sewing.
【００２８】不燃性または難燃性シート３は、畳床２の
難燃化、防炎化のため用いられ、例えば、目付け量５０
ｇ／ｍ2 程度の不織布である旭化成工業株式会社製の商
品名「ラスタン」が好適に使用できる。板紙４は、畳床
２の吸水性、結露防止、緩衝性のために用いられ、厚さ
はｌ〜３ｍｍ程度であり、この板紙４は必ずしも必要な
ものでなく、省略することもできる。The non-combustible or flame-retardant sheet 3 is used for making the tatami floor 2 flame-retardant and flame-proof.
Asahi Kasei Kogyo Co., Ltd., which is a nonwoven fabric of about g / m 2 , can be suitably used. The paperboard 4 is used for water absorption, dew condensation prevention and cushioning of the tatami floor 2 and has a thickness of about 1 to 3 mm. The paperboard 4 is not always necessary and can be omitted.
【００２９】ポリプロピレン発泡体からなる補強材５
は、畳表ｌにかかる集中荷重を分散させ、下部に位置す
るポリスチレン発泡体からなる芯材６のへこみを防止す
るためのもので、厚さ５ｍｍ程度で発泡倍率３倍程度で
ある。ポリスチレン発泡体からなる芯材６は、軽量スペ
ーサーの機能を果たし、断熱性、剛性を有し、この厚畳
の主要部で、厚さ４５ｍｍ程度を占め、発泡倍率３０倍
程度である。Reinforcing material 5 made of polypropylene foam
Is for dispersing the concentrated load applied to the tatami table 1 to prevent dents in the core member 6 made of polystyrene foam located at the lower part, and has a thickness of about 5 mm and an expansion ratio of about 3 times. The core material 6 made of a polystyrene foam has the function of a lightweight spacer, has heat insulation properties and rigidity, and occupies a thickness of about 45 mm in the main part of the thick tatami mat, and has a foaming ratio of about 30 times.
【００３０】ポリプロピレン発泡体からなる補強材７
は、畳表ｌの縫着時のポリスチレン発泡体からなる芯材
６を保護し、畳表ｌの巻き込み時のタッカ−止めが効く
ために用い、厚さ２ｍｍ程度で発泡倍率３倍程度であ
る。尚、ポリプロピレン発泡体としては、たとえば住化
プラステック株式会社の商品名「スミセラー」が好適に
使用できる。Reinforcing material 7 made of polypropylene foam
Is used to protect the core material 6 made of a polystyrene foam when the tatami mat 1 is sewn and to prevent tacking when the tatami mat 1 is rolled in. The thickness is about 2 mm and the expansion ratio is about 3 times. In addition, as a polypropylene foam, for example, the trade name “Sumicellar” of Sumika Plustech Co., Ltd. can be suitably used.
【００３１】板紙８は、畳床２の吸水性、結露防止、畳
表ｌを巻き込む時のスペーサーとして用い、厚さｌ〜３
ｍｍ程度であり、この板紙８は必ずしも必要なものでな
く、省略することもできる。割布９は、美粧性、耐久
性、防湿性のために用いられ、ポリプロピレン繊維をク
ロスさせ紙にラミネートさせたものである。The paperboard 8 is used as a spacer for absorbing the water of the tatami floor 2 and preventing dew condensation, and when the tatami mat 1 is rolled up.
mm, and the paperboard 8 is not always necessary and can be omitted. The split cloth 9 is used for aesthetics, durability, and moisture resistance, and is made by crossing polypropylene fibers and laminating on paper.
【００３２】次に、厚さ１０〜１５ｍｍの薄畳の一例に
ついて述べる。この薄畳の断面構造も前述の厚畳の断面
構造とほぼ同じで、図２に示す通りで、同じ符号で同一
部品を示す。この場合には、ポリプロピレン発泡体から
なる補強材５の厚さは、３ｍｍ程度で発泡倍率３倍程度
である。インシュレーションファイバーボードからなる
芯材１０は、厚さ５〜１０ｍｍ程度を占める。ポリプロ
ピレン発泡体からなる補強材７は、厚さ１ｍｍ程度で発
泡倍率約１．３倍である。Next, an example of a thin tatami mat having a thickness of 10 to 15 mm will be described. The cross-sectional structure of the thin tatami mat is substantially the same as the cross-sectional structure of the thick tatami mat described above, and the same parts are indicated by the same reference numerals as shown in FIG. In this case, the thickness of the reinforcing material 5 made of a polypropylene foam is about 3 mm and the expansion ratio is about 3 times. The core material 10 made of an insulation fiber board occupies a thickness of about 5 to 10 mm. The reinforcing material 7 made of a polypropylene foam has a thickness of about 1 mm and an expansion ratio of about 1.3.
【００３３】[0033]
【発明の効果】本発明の畳床は軽量で防火性に優れ、畳
床のカットや縫着が容易で、従来の加工道具で加工で
き、かつ反りが少ない。また、本発明の畳床は樹脂を主
体としてなるため、断熱性に優れ、粉塵が出ないため作
業環境改善に役立つ。The tatami floor of the present invention is lightweight and excellent in fire resistance, is easy to cut and sew the tatami floor, can be processed with a conventional processing tool, and has little warpage. Further, the tatami floor of the present invention is mainly made of resin, so that it has excellent heat insulation properties and does not generate dust, which is useful for improving the working environment.
【図１】本発明の厚畳の畳床の縦断面図である。FIG. 1 is a longitudinal sectional view of a tatami floor of a thick tatami mat according to the present invention.
【図２】本発明の薄畳の畳床の縦断面図である。FIG. 2 is a longitudinal sectional view of a tatami floor of a thin tatami mat according to the present invention.
１…畳表 ２…畳床 ３…不燃性または難燃性シート ４…板紙 ５…ポリプロピレン発泡体 ６…ポリスチレン発泡体 ７…ポリプロピレン発泡体 ８…板紙 ９…割布 １０…芯材 DESCRIPTION OF SYMBOLS 1 ... Tatami table 2 ... Tatami floor 3 ... Non-combustible or flame-retardant sheet 4 ... Paperboard 5 ... Polypropylene foam 6 ... Polystyrene foam 7 ... Polypropylene foam 8 ... Paperboard 9 ... Split cloth 10 ... Core material
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１０年７月２４日（１９９８．７．２
４）[Submission date] July 24, 1998 (1998.7.2
4)
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１４】更に、芯材の上下面に係る発泡体を補強材
として使用する場合には、上部のポリプロピレンまたは
ポリエチレン発泡体の発泡倍率が２倍以上４倍以下であ
り、下部のポリプロピレンまたはポリエチレン発泡体の
発泡倍率が１．２倍以上４倍以下であることがより好ま
しい。また該下部のポリプロピレンまたはポリエチレン
発泡体の発泡倍率は、後述する厚畳床に使用する場合に
は２倍以上４倍以下であることが、薄畳床に使用する場
合には１．２倍以上２倍以下であることが特に好まし
い。Further, when the foams on the upper and lower surfaces of the core material are used as a reinforcing material, the expansion ratio of the upper polypropylene or polyethylene foam is 2 to 4 times and the lower polypropylene or polyethylene foam is lower. More preferably, the foaming ratio of the body is 1.2 times or more and 4 times or less. Also, the expansion ratio of the polypropylene or polyethylene foam at the bottom is preferably 2 times or more and 4 times or less when used for a thick tatami floor described later, and 1.2 times or more when used for a thin tatami floor. It is particularly preferred that the ratio be twice or less.
【手続補正３】[Procedure amendment 3]
【補正対象書類名】図面[Document name to be amended] Drawing
【補正対象項目名】図２[Correction target item name] Figure 2
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【図２】 FIG. 2
Claims (17)
からなる補強材、不燃性または難燃性シート及び芯材を
有する畳床。1. A tatami floor having a reinforcing material made of a polypropylene or polyethylene foam, a non-combustible or flame-retardant sheet, and a core material.
リエチレン発泡体からなる補強材をそれぞれ積層し、ま
た、上方の該補強材の上部に不燃性または難燃性シート
を積層し、これらを一体接合してなる請求項１記載の畳
床。2. A reinforcing material made of a polypropylene or polyethylene foam is laminated on the upper and lower surfaces of a core material, respectively, and a non-combustible or flame-retardant sheet is laminated on an upper portion of the reinforcing material above. The tatami floor according to claim 1, which is joined.
エチレン発泡体からなる補強材を、芯材の下面に、熱可
塑性樹脂からなる補強材をそれぞれ積層し、また、上方
の該補強材の上部に不燃性または難燃性シートを積層
し、これらを一体接合してなる請求項１記載の畳床。3. A reinforcing material made of foamed polypropylene or polyethylene is laminated on the upper surface of the core material, and a reinforcing material made of thermoplastic resin is laminated on the lower surface of the core material. The tatami floor according to claim 1, wherein non-combustible or flame-retardant sheets are laminated and integrally joined.
項２または３記載の畳床。4. The tatami floor according to claim 2, wherein a split cloth is laminated below the lower reinforcing member.
リエチレン発泡体からなる補強材をそれぞれ積層し、上
方の該補強材の上面に板紙を、その板紙の上面に不燃性
または難燃性シートをそれぞれ積層し、下方の該補強材
の下面に板紙を、その板紙の下面に割布をそれぞれ積層
し、これらを一体接合してなる請求項１〜４のいずれか
に記載の畳床。5. A reinforcing material made of a polypropylene or polyethylene foam is laminated on the upper and lower surfaces of a core material, respectively. A paperboard is placed on the upper surface of the reinforcing material, and a non-combustible or flame-retardant sheet is placed on the upper surface of the paperboard. The tatami floor according to any one of claims 1 to 4, wherein each of the tatami floors is laminated, a paperboard is laminated on a lower surface of the lower reinforcing member, and a split cloth is laminated on a lower surface of the paperboard, and these are integrally joined.
エチレン発泡体からなる補強材を積層し、上方の該補強
材の上面に板紙を、その板紙の上面に不燃性または難燃
性シートをそれぞれ積層し、芯材の下面に、熱可塑性樹
脂からなる補強材を積層し、下方の該補強材の下面に板
紙を、その板紙の下面に割布をそれぞれ積層し、これら
を一体に接合してなる請求項１〜４のいずれかに記載の
畳床。6. A reinforcing material made of a polypropylene or polyethylene foam is laminated on the upper surface of the core material, a paperboard is laminated on the upper surface of the reinforcing material above, and a nonflammable or flame-retardant sheet is laminated on the upper surface of the paperboard. Then, a reinforcing material made of a thermoplastic resin is laminated on the lower surface of the core material, a paperboard is laminated on the lower surface of the lower reinforcing material, and a split cloth is laminated on the lower surface of the paperboard, and these are integrally joined. The tatami floor according to claim 1.
の発泡倍率が１．１倍以上６倍以下である請求項1 〜６
のいずれかに記載の畳床。7. The polypropylene or polyethylene foam has an expansion ratio of 1.1 to 6 times.
The tatami floor according to any one of the above.
発泡体の発泡倍率が２倍以上４倍以下であり、下部のポ
リプロピレンまたはポリエチレン発泡体の発泡倍率が
１．２倍以上４倍以下である請求項７に記載の畳床。8. The expansion ratio of the upper polypropylene or polyethylene foam is 2 times or more and 4 times or less, and the expansion ratio of the lower polypropylene or polyethylene foam is 1.2 times or more and 4 times or less. The tatami floor described.
請求項1 〜５のいずれかに記載の厚畳床。9. The thick tatami floor according to any one of claims 1 to 5, wherein the total thickness is 21 mm or more and 60 mm or less.
ン発泡体からなる補強材の厚さが２mm以上６mm以下、及
び下面のポリプロピレンまたはポリエチレン発泡体から
なる補強材あるいは熱可塑性樹脂からなる補強材の厚さ
が１mm以上４mm以下である請求項９に記載の厚畳床。10. The thickness of the upper reinforcement made of polypropylene or polyethylene foam is 2 mm or more and 6 mm or less, and the thickness of the lower reinforcement made of polypropylene or polyethylene foam or the reinforcement made of thermoplastic resin is 1 mm. The thick tatami floor according to claim 9, which is at least 4 mm or less.
〜６のいずれかに記載の薄畳床。11. The overall thickness is 20 mm or less.
7. The thin tatami floor according to any one of to 6.
ン発泡体の厚さが１mm以上４mm以下、下面のポリプロピ
レンまたはポリエチレン発泡体の厚さが０．５mm以上２
mm以下である請求項１１記載の薄畳床。12. The polypropylene or polyethylene foam on the upper surface has a thickness of 1 mm to 4 mm, and the polypropylene or polyethylene foam on the lower surface has a thickness of 0.5 mm to 2 mm.
The thin tatami floor according to claim 11, which is not more than mm.
である請求項１〜１２のいずれかに記載の畳床。13. The tatami floor according to claim 1, wherein the core material is a core material made of a thermoplastic resin foam.
である請求項１３に記載の畳床。14. The tatami floor according to claim 13, wherein the core material is a core material made of a polystyrene foam.
ードからなる芯材である請求項１〜８、１１、１２のい
ずれかに記載の畳床。15. The tatami floor according to claim 1, wherein the core material is a core material made of an insulation fiber board.
を縫着により一体接合してなる畳床。16. A tatami floor obtained by integrally joining the tatami floor according to any one of claims 1 to 15 by sewing.
と畳表とからなる畳。17. A tatami mat comprising the tatami mat floor and the tatami mat according to any one of claims 1 to 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20246798A JP3972079B2 (en) | 1998-07-17 | 1998-07-17 | Tatami floor and tatami |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20246798A JP3972079B2 (en) | 1998-07-17 | 1998-07-17 | Tatami floor and tatami |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000034823A true JP2000034823A (en) | 2000-02-02 |
| JP3972079B2 JP3972079B2 (en) | 2007-09-05 |
Family
ID=16458017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20246798A Expired - Fee Related JP3972079B2 (en) | 1998-07-17 | 1998-07-17 | Tatami floor and tatami |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3972079B2 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002055299A1 (en) * | 2001-01-15 | 2002-07-18 | 2752-3273 Quebec Inc. | Resilient floor surface |
| WO2004033194A1 (en) * | 2002-10-11 | 2004-04-22 | Alain Lemieux | Improved underpad system |
| US7662468B2 (en) | 2000-10-06 | 2010-02-16 | Brock Usa, Llc | Composite materials made from pretreated, adhesive coated beads |
| JP2010261184A (en) * | 2009-05-01 | 2010-11-18 | Yuka Sansho Kenzai Kk | Tatami mat floor as building material and tatami mat placed thereon |
| CN101892732A (en) * | 2010-08-05 | 2010-11-24 | 浙江贝亚克木业有限公司 | Method for manufacturing anti-cracking solid wood composite blue and white porcelain floor |
| US8568840B2 (en) | 2007-01-19 | 2013-10-29 | Brock Usa, Llc | Base for turf system |
| US8668403B2 (en) | 2008-01-22 | 2014-03-11 | Brock Usa, Llc | Load supporting panel having impact absorbing structure |
| US9567714B2 (en) | 2007-01-19 | 2017-02-14 | Brock Usa, Llc | Structural underlayment support system and panel for use with paving and flooring elements |
| JP2018104981A (en) * | 2016-12-26 | 2018-07-05 | 積水成型工業株式会社 | Laminated tatami surface and tatami using thereof |
| US10060082B2 (en) | 2016-05-18 | 2018-08-28 | Brock Usa, Llc | Base for turf system with vertical support extensions at panel edges |
| USD866800S1 (en) | 2015-10-26 | 2019-11-12 | Brock Usa, Llc | Turf underlayment |
| JP2021025219A (en) * | 2019-07-31 | 2021-02-22 | 株式会社カネカ | Tatami floor |
-
1998
- 1998-07-17 JP JP20246798A patent/JP3972079B2/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7662468B2 (en) | 2000-10-06 | 2010-02-16 | Brock Usa, Llc | Composite materials made from pretreated, adhesive coated beads |
| WO2002055299A1 (en) * | 2001-01-15 | 2002-07-18 | 2752-3273 Quebec Inc. | Resilient floor surface |
| WO2004033194A1 (en) * | 2002-10-11 | 2004-04-22 | Alain Lemieux | Improved underpad system |
| US9567714B2 (en) | 2007-01-19 | 2017-02-14 | Brock Usa, Llc | Structural underlayment support system and panel for use with paving and flooring elements |
| US9771692B2 (en) | 2007-01-19 | 2017-09-26 | Brock Usa, Llc | Base for turf system |
| US9631326B2 (en) | 2007-01-19 | 2017-04-25 | Brock Usa, Llc | Underlayment panel having drainage channels |
| US8568840B2 (en) | 2007-01-19 | 2013-10-29 | Brock Usa, Llc | Base for turf system |
| US8597754B2 (en) | 2007-01-19 | 2013-12-03 | Brock Usa, Llc | Base for turf system |
| US8603601B2 (en) | 2007-01-19 | 2013-12-10 | Brock Usa, Llc | Base for turf system |
| US8668403B2 (en) | 2008-01-22 | 2014-03-11 | Brock Usa, Llc | Load supporting panel having impact absorbing structure |
| US9394651B2 (en) | 2008-01-22 | 2016-07-19 | Brock Usa, Llc | Underlayment panel having drainage channels |
| US8967906B2 (en) | 2008-01-22 | 2015-03-03 | Brock Usa, Llc | Underlayment panel having drainage channels |
| JP2010261184A (en) * | 2009-05-01 | 2010-11-18 | Yuka Sansho Kenzai Kk | Tatami mat floor as building material and tatami mat placed thereon |
| CN101892732A (en) * | 2010-08-05 | 2010-11-24 | 浙江贝亚克木业有限公司 | Method for manufacturing anti-cracking solid wood composite blue and white porcelain floor |
| USD866800S1 (en) | 2015-10-26 | 2019-11-12 | Brock Usa, Llc | Turf underlayment |
| US10060082B2 (en) | 2016-05-18 | 2018-08-28 | Brock Usa, Llc | Base for turf system with vertical support extensions at panel edges |
| JP2018104981A (en) * | 2016-12-26 | 2018-07-05 | 積水成型工業株式会社 | Laminated tatami surface and tatami using thereof |
| JP2021025219A (en) * | 2019-07-31 | 2021-02-22 | 株式会社カネカ | Tatami floor |
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| JP3972079B2 (en) | 2007-09-05 |
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