JPH0762789A - Ceiling plate - Google Patents
Ceiling plateInfo
- Publication number
- JPH0762789A JPH0762789A JP5235597A JP23559793A JPH0762789A JP H0762789 A JPH0762789 A JP H0762789A JP 5235597 A JP5235597 A JP 5235597A JP 23559793 A JP23559793 A JP 23559793A JP H0762789 A JPH0762789 A JP H0762789A
- Authority
- JP
- Japan
- Prior art keywords
- hardened layer
- crosspiece
- base plate
- ceiling
- molded
- 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.)
- Pending
Links
Landscapes
- Panels For Use In Building Construction (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は構造要素、建築材料の分
野に属する天井板に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ceiling plate which belongs to the field of structural elements and building materials.
【0002】[0002]
【従来の技術】従来の天井板は、台板の裏面に梯子状の
縦桟と横桟から成る裏桟を接合して成っているが、全体
が幅の狭い縦に長い木質材で形成されるため、その重量
が天井構築時の作業性を低下させ、コスト削減の面でも
限界にきている。一方、森林資源はその枯渇化が叫ばれ
て木材供給には歯止めが掛けられ、木材資源のいっそう
の活用が迫られている。こうした現状にあって、軽量で
取扱い易い新材料による 天井板の開発が求められてい
るところである。2. Description of the Related Art A conventional ceiling board is formed by joining a back rail consisting of a ladder-shaped vertical rail and a horizontal rail to the back surface of a base plate, but the whole is made of a narrow vertically long wood material. Therefore, its weight lowers the workability at the time of constructing the ceiling, and has reached the limit in terms of cost reduction. On the other hand, the depletion of forest resources has been called for, and the supply of timber has been halted, and there is a pressing need for further utilization of timber resources. Under these circumstances, the development of ceiling panels made of new materials that are lightweight and easy to handle is being demanded.
【0003】[0003]
【発明が解決しようとする課題】本発明が解決しようと
する課題は、多孔質合成樹脂成形材による軽量で安価な
天井板の提供によりその目的を達成しようとするもので
ある。The problem to be solved by the present invention is to achieve the object by providing a lightweight and inexpensive ceiling board made of a porous synthetic resin molding material.
【0004】[0004]
【課題を解決するための手段】本発明の天井板は、裏桟
に台板を接合し、該台板に木質模様を配したシート材を
貼着して成る天井板おいて、裏桟が多孔質合成樹脂の成
形体の表裏に硬化層を形成した成形材から成り、裏桟が
前記硬化層を縦横に位置取りした成形材相互の結合体を
構成部材として成るものである。The ceiling board of the present invention is a ceiling board formed by joining a base plate to a back rail and attaching a sheet material having a wood pattern to the base board. It is composed of a molding material in which a hardened layer is formed on the front and back sides of a molded body of porous synthetic resin, and a back rail is a constituent member of a combination of molding materials in which the hardened layer is positioned vertically and horizontally.
【0005】[0005]
【作用】硬化層の縦配列が曲げ強度を増強する。The vertical arrangement of the hardened layer enhances the bending strength.
【0006】[0006]
【実施例】本発明を実施例により説明すると、図1に示
すように化粧面にシート材としての印刷化粧紙1を貼着
した多孔質合成樹脂材またはベニヤ合板の台板2と、台
板2の裏面に接合する縦桟3と横桟4とが多孔質合成樹
脂材から成る裏桟5とで形成された天井板において、縦
桟3は図2に示すように側方部材6と内方部材7との結
合体から成り、側方部材6は図3に示すように上下に硬
化層8を形成した成形材9であり、内方部材7は図4に
示すように左右に硬化層8を形成した成形材10を3本
接着剤で接合して成るものである。EXAMPLES The present invention will be described by way of examples. As shown in FIG. 1, a base plate 2 made of a porous synthetic resin material or veneer plywood having a decorative face coated with a printed decorative paper 1 as a sheet material, and a base plate. In the ceiling plate in which the vertical rails 3 and the horizontal rails 4 joined to the back surface of the back rail 2 are formed by the back rails 5 made of a porous synthetic resin material, the vertical rails 3 and the side members 6 as shown in FIG. The side member 6 is a molding material 9 in which a hardened layer 8 is formed on the upper and lower sides as shown in FIG. 3, and the inner member 7 is a hardened layer on the left and right sides as shown in FIG. 8 is formed by joining three molding materials 10 with three adhesives.
【0007】ここで、内方部材7について、図3に示す
ように単に上下に深さSの硬化層8を形成したものと図
4に示すように左右に深さSの硬化層8を形成した成形
材10を3本接合したものとを比較すると、硬化層8を
除けば両者は同一断面であるから両断面係数は同一であ
り、鉛直方向に関する曲げ強度は同一となる。Here, as for the inner member 7, a hardened layer 8 having a depth S is simply formed vertically as shown in FIG. 3 and a hardened layer 8 having a depth S is formed laterally as shown in FIG. Comparing the three molded materials 10 joined together, the two sections have the same cross section except for the hardened layer 8 and therefore have the same section modulus and the same bending strength in the vertical direction.
【0008】そこで硬化層8のみについて比較すると、
前者の図3に示すものは上下の2個所の硬化層8の断面
が曲げ強度に関与し、その断面係数Z1 はZ1 =1.4
hs2 /6となり、上下で曲げモーメントに対応するこ
とになるから、総計の断面係数Z1TはZ1T=2×1.4
hs2 /6=1.4hs2 /3・・・・・・(1) となる。Therefore, comparing only the hardened layer 8,
In the former one shown in FIG. 3, the cross sections of the upper and lower hardened layers 8 are involved in the bending strength, and the section modulus Z 1 is Z 1 = 1.4.
hs 2/6, and the because will correspond to the vertical bending moments, the section modulus Z 1T of total Z 1T = 2 × 1.4
hs 2 /6=1.4hs 2/3 becomes ...... (1).
【0009】次に後者の図4に示すものは、3本の成形
材10が接合されて成り、各成形材10の左右に形成さ
れた硬化層8が曲げ強度に関与するものであり、各硬化
層8の断面係数Z2 はZ2 =sh2 /6であり、総計の
断面係数Z2TはZ2T=6×sh2 /6=sh2 ・・・・・・
(2) となる。Next, the latter one shown in FIG. 4 is formed by joining three molding materials 10, and the hardened layers 8 formed on the left and right of each molding material 10 contribute to the bending strength. section modulus Z 2 of the hardened layer 8 is Z 2 = sh 2/6, the section modulus of the total Z 2T is Z 2T = 6 × sh 2/ 6 = sh 2 ······
(2)
【0010】両者の縦桟3の長手方向の曲げ強度に関与
する断面係数を比較すると、(1) 、(2) 式より、 Z2T−Z1T=sh2 −1.4hs2 /3=sh(h−
1.4s/3) ここで、sはhに比して極く薄い層であるから(h−
1.4s/3)>oである。よってZ2T−Z1T>o ∴ Z2T>Z1T となる。[0010] Comparing the section modulus involved in the longitudinal direction of the bending strength of the vertical bars 3 between them, (1) and (2), Z 2T -Z 1T = sh 2 -1.4hs 2/3 = sh (H-
1.4s / 3) Here, since s is a very thin layer compared to h (h-
1.4s / 3)> o. Therefore, Z 2T −Z 1T > o ∴ Z 2T > Z 1T .
【0011】したがって、同一断面において図4に示す
ように左右に硬化層8を形成した成形材10を3本接合
したものを内方部材7とし、それに上下に硬化層8を形
成した側方部材6を接合した縦桟3を使用すれば、多孔
質合成樹脂の軽量材から成る天井板において、運搬や取
り付けなどに支障を来すことのない強度を付与すること
ができる。横桟4においても、左右に硬化層8を形成し
た成形材10を使用することにより、短手方向の曲げ強
度を増強できる。また、その成形材10は上下方向では
多孔質性であるので、木質天井板を用いて天井に施行
後、月数を経ると漸次に天井板にあらわれる横桟の影を
多孔質の通気性によって抑制することができる。上記影
とは横桟が天井板の裏面に接していると、天井板の表面
が全面的に変色するにかかわらず、天井板の木目や柾目
り方向と直角方向に位置する横桟の接する部分の天井板
表面が変色しない現象をいうのであって、これは通気に
よるものとされている。Therefore, in the same cross section, as shown in FIG. 4, three molding materials 10 each having a hardened layer 8 formed on the left and right sides are joined together to form an inner member 7, and a lateral member having a hardened layer 8 formed on the upper and lower sides thereof. By using the vertical crosspiece 3 to which 6 is joined, it is possible to provide a ceiling plate made of a lightweight material of porous synthetic resin with a strength that does not hinder transportation or mounting. Even in the cross rail 4, the bending strength in the lateral direction can be increased by using the molding material 10 having the hardened layers 8 formed on the left and right. In addition, since the molding material 10 is porous in the vertical direction, after the wooden ceiling plate is used to apply the ceiling to the ceiling, the shadow of the horizontal crosspiece that gradually appears on the ceiling plate due to the porous air permeability after a lapse of months. Can be suppressed. What is the above shadow? If the horizontal rail is in contact with the back surface of the ceiling board, the portion where the horizontal rail located in the direction perpendicular to the grain or grain direction of the ceiling board is in contact, regardless of the color of the entire surface of the ceiling board. It is a phenomenon that the surface of the ceiling plate does not discolor, which is attributed to ventilation.
【0012】[0012]
【発明の効果】本発明の天井板によれば、軽量である上
に十分な曲げ強度を有するから、天井構築の作業能率が
向上し、横桟を天井板裏面に密着させて表面に影桟が出
ない効果がある。According to the ceiling board of the present invention, since it is light in weight and has sufficient bending strength, the work efficiency of the ceiling construction is improved, and the horizontal rail is brought into close contact with the back surface of the ceiling board, and the shadow rail is attached to the front surface. There is an effect that does not come out.
【図1】本発明に係わる天井板の長手方向の一部を省略
し、台板2を破断した状態の説明用斜視図。FIG. 1 is a perspective view for explaining a state in which a part of a ceiling plate according to the present invention in a longitudinal direction is omitted and a base plate 2 is broken.
【図2】図1のA−A矢視拡大断面図。2 is an enlarged sectional view taken along the line AA of FIG.
【図3】内方部材7の硬化層8を上下に形成した状態の
説明図。FIG. 3 is an explanatory view of a state in which a hardened layer 8 of an inner member 7 is formed vertically.
【図4】内方部材7の硬化層8を左右に縦設形成した状
態の説明図。FIG. 4 is an explanatory view of a state in which a hardened layer 8 of an inner member 7 is vertically formed on the left and right.
1 印刷化粧紙 2 台板 3 縦桟 4 横桟 5 裏桟 6 側方部材 7 内方部材 8 硬化層 9 成形材 10 成形材 1 Printing decorative paper 2 Base plate 3 Vertical bar 4 Horizontal bar 5 Back bar 6 Side member 7 Inner member 8 Curing layer 9 Molding material 10 Molding material
Claims (2)
模様のシート材を貼着して成る天井板において、裏桟が
多孔質合成樹脂の成形体の表裏に硬化層を形成した成形
材から成るとともに、裏桟が前記硬化層を縦横に位置取
りした成形材相互の結合体を構成部材として成り、軽量
部材の曲げ強度を増強したことを特徴とする天井板。1. A ceiling board formed by sticking a wood-like sheet material to the surface of a base plate having a back rail joined to the back surface, wherein the back rail has hardened layers formed on the front and back sides of a porous synthetic resin molded body. A ceiling board, which is made of a molding material and whose back rail is made up of a combination of molding materials in which the above-mentioned hardened layer is positioned vertically and horizontally as a constituent member to enhance the bending strength of a lightweight member.
項1記載の天井板2. The ceiling plate according to claim 1, wherein the left and right vertical rails of the back rail are made of a combined body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5235597A JPH0762789A (en) | 1993-08-27 | 1993-08-27 | Ceiling plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5235597A JPH0762789A (en) | 1993-08-27 | 1993-08-27 | Ceiling plate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0762789A true JPH0762789A (en) | 1995-03-07 |
Family
ID=16988366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5235597A Pending JPH0762789A (en) | 1993-08-27 | 1993-08-27 | Ceiling plate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0762789A (en) |
-
1993
- 1993-08-27 JP JP5235597A patent/JPH0762789A/en active Pending
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