JP3667985B2

JP3667985B2 - Panel shutter panel structure

Info

Publication number: JP3667985B2
Application number: JP12182898A
Authority: JP
Inventors: 一行永田
Original assignee: Bunka Shutter Co Ltd
Current assignee: Bunka Shutter Co Ltd
Priority date: 1998-04-15
Filing date: 1998-04-15
Publication date: 2005-07-06
Anticipated expiration: 2018-04-15
Also published as: JPH11294037A

Description

【０００１】
【発明の属する技術分野】
本発明は、建屋開口部を開閉する為に設けられるオーバドア等のパネルシャッタ、特にパネルシャッタ用のパネルの改良に関するものである。
【０００２】
【従来の技術】
オーバドア等パネルシャッタではシャッタカーテンを構成する部材としてパネルが用いられる。
【０００３】
図９に於いてオーバドアについて概略を説明する。
【０００４】
図９中、１は建屋開口部であり、該開口部１の両側柱２及び天井に掛渡ってガイドレール３が設けられ、該ガイドレール３にはローラ（図示せず）を介してシャッタカーテン４が摺動自在に設けられている。該シャッタカーテン４は、所定数のパネル５が蝶番６を介して屈曲自在に連結され、構成されたものである。
【０００５】
前記開口部１の上方にはワイヤドラム７が回転自在に設けられると共に、バランススプリング８が設けられ、前記ワイヤドラム７に巻設されたワイヤ９が前記シャッタカーテン４の下端に係着されている。前記バランススプリング８により前記ワイヤ９を介して前記シャッタカーテン４に引上げ方向の力が付勢され、前記バランススプリング８の力と前記シャッタカーテン４の重量がバランスして該シャッタカーテン４は軽い力で開閉される。開閉は小型のものでは手動で、大型のものでは電動で行われる。
【０００６】
上記したパネルシャッタで開口部が大きいものに施工される場合は、一枚のパネルの長さが断面形状に比べ著しく長くなる。この為、前記シャッタカーテン４に風圧等外力が作用する場合、撓み、場合によっては曲り変形を生じてしまうことがある。この為、大開口部に取付けられるパネルシャッタのパネルには図１０に示される様に、曲げ方向に対する補強構造を具備している。
【０００７】
即ち、パネル５の下辺枠材１０は室内方向に突出するリブ１１を有している。該リブ１１は断面係数が大きくなる様に突出端部１１ａの断面積が大きくなっている。
【０００８】
【発明が解決しようとする課題】
前記した補強構造では、前記リブ１１に引張り応力が作用する方向に外圧が作用する場合、充分な強度を有するが、該リブ１１に圧縮応力が作用する様な外圧が作用した場合、例えば強風が前記シャッタカーテン４と平行に吹き、屋外の気圧が負圧となった場合には充分な強度が発揮されない。又該シャッタカーテン４に大きな負圧が作用し、前記リブ１１に大きな圧縮力が作用すると、該リブ１１が座屈を生じ該リブ１１が波打つ様に変形し、ついには該リブ１１と共に前記シャッタカーテン４が曲ってしまう虞れがある。
【０００９】
上記した該シャッタカーテン４の構造では、正圧に対する曲げ強度と、負圧に対する曲げ強度とは大きな差があり、負圧に対するより充分な強度の増強が課題となっていた。
【００１０】
負圧に対する強度の増強の１つの手段として、図１１に示される様に前記突出端部１１ａに前記リブ１１全長に亘り、断面Ｔ字状の補強部材１２をボルト１３で固着する事がなされたが、充分な強度の増強には至っていない。
【００１１】
本発明は、パネルの負圧に対する強度の増強を図ると共に既存のパネルシャッタに対しても容易に施工可能とするパネルシャッタのパネル構造を提供しようとするものである。
【００１２】
【課題を解決するための手段】
本発明は、パネルがパネル材、パネルの枠材、パネル補強部材等の強度部材により構成され、前記パネルの枠材、パネル補強部材等の強度部材の少なくとも１つがパネルに対して垂直方向に突出するリブを有し、該リブの上端と前記強度部材に掛渡ってリブ補強材を設け、該リブ補強材は前記リブの上端部と嵌合する袋状の上端係合部と前記強度部材に取付けられる下端フランジ部を有し、前記リブ補強材は前記パネルに後付け可能であるパネルシャッタのパネル構造に係り、又所要幅のリブ補強材が、前記パネル補強部材に対応して設けられたパネルシャッタのパネル構造に係り、又リブ補強材がリブと略同等の長さを有するパネルシャッタのパネル構造に係り、更に又前記リブ補強材の上端係合部は、前記リブの上端部と弾性的に嵌合可能としたパネルシャッタのパネル構造に係るものである。
【００１３】
該リブの変形をリブ補強材により拘束するのでパネルの曲げ剛性、曲げ強度が増強される。更に、前記リブの突出端部にリブ補強材を嵌合させ、リブ補強材を介して上端部をパネルに固定するので、前記突出端部の変形が拘束され、リブの座屈強度が向上し、パネルの負圧方向に対する曲げ強度が向上する。又、前記リブ補強材をリブ全長に設ければ、リブ補強材自体がリブと同等の補強作用を発揮し、更に大きな曲げ強度が発揮される。
【００１４】
【発明の実施の形態】
以下、図面を参照しつつ本発明の実施の形態を説明する。
【００１５】
図１、図２に於いて、図１はパネル５の背面、屋内側から見た図であり、図２は図１のＡ−Ａ矢視図である。
【００１６】
パネル材１５の周囲に強度部材である上辺枠材１６、下辺枠材１７、側辺枠材１８が取付けられ、パネル５が構成され、長手方向所要間隔で強度部材であるパネル補強部材１９が前記上辺枠材１６、下辺枠材１７間に掛渡されている。該下辺枠材１７は前述した下辺枠材１０と同様であり、室内方向に突出するリブ１１を有し、該リブ１１の突出端部１１ａの断面積は大きくなっている。
【００１７】
又、上下に位置するパネル５，５の前記パネル補強部材１９の位置に蝶番６が設けられている。又、リブ補強材２０の上端係合部２０ａを前記リブ１１の突出端部１１ａに嵌合させ、前記リブ補強材２０の下端フランジ部２０ｂを前記蝶番６と共に前記パネル補強部材１９にボルト付けする。
【００１８】
前記リブ補強材２０は前記リブ１１の全長に亘って設けられる長さを有し、前記上端係合部２０ａは前記突出端部１１ａに嵌合可能な様に袋状に形成され、更に前記リブ１１に平行な縁部舌片２０ｃが形成され、前記下端フランジ部２０ｂは前記パネル補強部材１９の表面と平行である。
【００１９】
前記リブ補強材２０の取付けは、前述した様に前記上端係合部２０ａを前記突出端部１１ａに嵌合させ、ボルト２１により所要間隔で前記縁部舌片２０ｃを前記リブ１１に固着する。又、前記下端フランジ部２０ｂと前記蝶番６をボルト２２により共締する。前記リブ補強材２０の取付けにより、前記リブ１１が補強される。
【００２０】
前記リブ補強材２０は、前記リブ１１の前記突出端部１１ａの座屈変形を拘束し、更に前記リブ補強材２０自体が前記リブ１１と同等の補強作用を有し、前記パネル５の強度が大幅に増強される。
【００２１】
前記リブ補強材２０を固着した前記パネル５に負圧を想定し、前記リブ１１に圧縮荷重が掛る様な荷重試験を行ったところ、対負圧方向のパネル強度は前記リブ１１を前記補強部材１２で補強した場合に比べ、略３倍に増強した。
【００２２】
図３は前記上端係合部２０ａを前記突出端部１１ａに嵌合させ、前記上端係合部２０ａの弾性力で前記突出端部１１ａに保持させたものであり、前記縁部舌片２０ｃを前記ボルト２１で固定することを省略したものである。前記上端係合部２０ａと前記突出端部１１ａの嵌合は、該突出端部１１ａに対して前記上端係合部２０ａを長手方向から差込むか、或は前記突出端部１１ａの先端の一部を前記上端係合部２０ａに差込み、該上端係合部２０ａの弾性変形を利用して前記リブ補強材２０を回込んで嵌込む。前記下端フランジ部２０ｂは前記ボルト２２により前記蝶番６と共締する。前記リブ補強材２０は前記上端係合部２０ａと前記突出端部１１ａとの嵌合力と前記ボルト２２とによって固定される。
【００２３】
図４、図５は他の実施の形態を示しており、リブ補強材２５は前記リブ１１の全長ではなく、所要箇所、具体的には前記パネル補強部材１９に対応した位置に設けられる。
【００２４】
所要幅の前記リブ補強材２５は上端部に前記突出端部１１ａと嵌合する上端係合部２５ａが形成され、基端部には前記パネル補強部材１９の側面と平行に延出する下端フランジ部２５ｂが形成されている。
【００２５】
前記上端係合部２５ａは前記上端係合部２０ａと略同一の断面形状を有し、縁部舌片（図示せず）をボルトによりリブ１１に固定し、更に下端フランジ部２５ｂをボルト２２により、前記パネル補強部材１９に固着する。前記リブ補強材２５が取付けられた状態では、該リブ補強材２５は前記リブ１１に対して斜めとなる。
【００２６】
前記リブ補強材２５を前記リブ１１の全長ではなく、部分的に設けた場合でも、前記補強部材１２を取付けた場合に比べ大きな補強強度が得られる。尚、前記リブ補強材２５は前記パネル補強部材１９に対して各一対、該パネル補強部材１９の両側面に取付ける様にしてもよい。
【００２７】
上述した前記リブ補強材２０、リブ補強材２５はいずれも前記リブ１１上端部の変形を拘束するので、該リブ１１に圧縮荷重が作用した場合に、座屈変形を拘束し、座屈強度を大幅に増加させることができる。
【００２８】
尚、上記実施の形態では前記リブ補強材２０を前記蝶番６と共締したが該蝶番６と干渉しない位置にボルト付けしてもよい。又、リブ補強材は図６に示す様に上端係合部２０ａを省略したリブ補強材２６であってもよく、該リブ補強材２６を取付ける場合は上端部を前記リブ１１の中間部にボルト２１により固着する。
【００２９】
更に、パネル５として図７に示す様に、パネル補強部材１９がないものがあるが、この場合はリブ補強材２０の両端を両側の側辺枠材１８に固着すればよい。更に又、前記パネル５の形状として図８に示す様に、縦寸法が大きく前記パネル補強部材１９が横方向に設けられているものについては、縦方向の強度を補強する為、前記リブ１１が前記側辺枠材１８に設けられる場合がある。この場合、前記リブ補強材２０は前記側辺枠材１８に対して設けられ、前述したと同様前記リブ補強材２０は前記上辺枠材１６、下辺枠材１７及びパネル補強部材１９に固着される。
【００３０】
更に、前記リブ１１、リブ補強材２０は前記上辺枠材１６、下辺枠材１７、側辺枠材１８のいずれかの１つの枠材に限定されることはなく、該上辺枠材１６、下辺枠材１７の２つの枠材に、或は左右の側辺枠材１８に、或は上辺枠材１６、下辺枠材１７、側辺枠材１８の４つの枠材に設けてもよく、前記リブ１１の突出方向は背面側に限定されることはなく、パネルに対して垂直な方向に突出していればよい。更に、前記パネル補強部材１９が格子状、或は襷掛け状に設けられている前記パネル５に対しても実施可能であり、又前記パネル補強部材１９に前記リブ１１を設けることも可能であり、前記パネル補強部材１９が格子状、或は襷掛け状に設けらた場合は、前記リブ補強材２０も格子状、或は襷掛け状に設けられる。更に又、リブ補強材はリブが形成されている強度部材自体に固着されてもよい。
【００３１】
更に、本発明はパネルが建屋開口部が１枚のパネルにより開閉される様な大型のパネルに対しても実施可能であることは勿論である。
【００３２】
【発明の効果】
以上述べた如く本発明によれば、該リブの変形をリブ補強材により拘束するのでパネルの曲げ剛性、曲げ強度が増強される。更に、リブの突出端部にリブ補強材を嵌合させ、リブ補強材を介して上端部をパネルに固定することで、前記突出端部の変形が拘束され、リブの座屈強度が向上し、パネルに対するリブ座屈方向の曲げ強度が一層増強される。
【００３３】
更に又、前記リブ補強材をリブ全長に設ければ、リブ補強材自体がリブと同等の補強作用を発揮し、更に大きな曲げ強度が発揮される。
【図面の簡単な説明】
【図１】本発明の実施の形態に係るパネルの背面図である。
【図２】図１のＡ−Ａ矢視図である。
【図３】該実施の形態の変形を示す部分図である。
【図４】本発明の他の実施の形態を示す背面図である。
【図５】該他の実施の形態の要部斜視図である。
【図６】本発明の実施の形態に於けるリブ補強材の他の形状、他の固定方法を示す部分図である。
【図７】本発明の他の実施の形態に係るパネルの背面図である。
【図８】本発明の更に他の実施の形態に係るパネルの背面図である。
【図９】本発明が実施されるオーバドアの概略斜視図である。
【図１０】従来例を示すＡ−Ａ矢視図相当の側面図である。
【図１１】他の従来例を示すＡ−Ａ矢視図相当の側面図である。
【符号の説明】
５パネル
１１リブ
１１ａ突出端部
１７下辺枠材
１９パネル補強部材
２０リブ補強材
２０ａ上端係合部
２５リブ補強材
２６リブ補強材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a panel shutter such as an overdoor provided for opening and closing a building opening, in particular, a panel for a panel shutter.
[0002]
[Prior art]
In a panel shutter such as an over door, a panel is used as a member constituting a shutter curtain.
[0003]
An outline of the overdoor will be described with reference to FIG.
[0004]
In FIG. 9, reference numeral 1 denotes a building opening, and a guide rail 3 is provided over both side pillars 2 and the ceiling of the opening 1, and a shutter curtain is provided on the guide rail 3 via a roller (not shown). 4 is slidably provided. The shutter curtain 4 is configured by a predetermined number of panels 5 being flexibly connected via a hinge 6.
[0005]
A wire drum 7 is rotatably provided above the opening 1 and a balance spring 8 is provided. A wire 9 wound around the wire drum 7 is engaged with a lower end of the shutter curtain 4. . A force in the pulling direction is applied to the shutter curtain 4 via the wire 9 by the balance spring 8, and the force of the balance spring 8 and the weight of the shutter curtain 4 are balanced so that the shutter curtain 4 is lightly applied. Opened and closed. Opening and closing is done manually for small ones and electric for large ones.
[0006]
When the above-described panel shutter is constructed with a large opening, the length of one panel is significantly longer than the cross-sectional shape. For this reason, when an external force such as wind pressure acts on the shutter curtain 4, the shutter curtain 4 may be bent and may be bent and deformed in some cases. For this reason, as shown in FIG. 10, the panel of the panel shutter attached to the large opening has a reinforcing structure in the bending direction.
[0007]
That is, the lower frame member 10 of the panel 5 has ribs 11 protruding in the indoor direction. The rib 11 has a large cross-sectional area of the projecting end portion 11a so that the cross-section coefficient is large.
[0008]
[Problems to be solved by the invention]
In the above-described reinforcing structure, when external pressure is applied to the rib 11 in a direction in which tensile stress is applied, the rib 11 has sufficient strength. However, when external pressure is applied to the rib 11 such that compressive stress is applied, for example, strong wind is generated. When it blows in parallel with the shutter curtain 4 and the outdoor atmospheric pressure becomes negative, sufficient strength is not exhibited. When a large negative pressure is applied to the shutter curtain 4 and a large compressive force is applied to the rib 11, the rib 11 is buckled and deforms so that the rib 11 undulates. The curtain 4 may be bent.
[0009]
In the structure of the shutter curtain 4 described above, there is a large difference between the bending strength with respect to the positive pressure and the bending strength with respect to the negative pressure.
[0010]
As one means for increasing the strength against negative pressure, the reinforcing member 12 having a T-shaped cross section is fixed to the protruding end portion 11a with the bolt 13 over the entire length of the rib 11 as shown in FIG. However, the strength has not been sufficiently increased.
[0011]
The present invention seeks to provide a panel structure of a panel shutter that can increase the strength against negative pressure of the panel and can be easily applied to an existing panel shutter.
[0012]
[Means for Solving the Problems]
In the present invention, the panel is composed of a strength member such as a panel material, a panel frame material, and a panel reinforcing member, and at least one of the strength members such as the panel frame material and the panel reinforcing member projects in a direction perpendicular to the panel. A rib reinforcing member is provided across the upper end of the rib and the strength member, and the rib reinforcing member is attached to the bag-like upper end engaging portion and the strength member to be engaged with the upper end portion of the rib. A panel having a lower end flange portion to be attached, wherein the rib reinforcement member can be retrofitted to the panel , and a panel having a required width rib reinforcement member corresponding to the panel reinforcement member relates to a panel structure of the shutter, and Ri engages the panel structure of a panel shutter rib stiffener has a length of the rib is substantially equal, further or upper engaging portion of the rib reinforcement upper and elasticity of the rib Can be mated Those of the panel structure of the panel shutter with.
[0013]
Since the deformation of the rib is restricted by the rib reinforcing material, the bending rigidity and bending strength of the panel are enhanced. Further, since the rib reinforcing material is fitted to the protruding end portion of the rib and the upper end portion is fixed to the panel via the rib reinforcing material, the deformation of the protruding end portion is restrained, and the buckling strength of the rib is improved. The bending strength with respect to the negative pressure direction of the panel is improved. Further, if the rib reinforcing material is provided over the entire length of the rib, the rib reinforcing material itself exhibits a reinforcing action equivalent to that of the rib, and a greater bending strength is exhibited.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0015]
1 and 2, FIG. 1 is a view of the panel 5 as viewed from the rear and indoor side, and FIG. 2 is a view taken along the line AA of FIG. 1.
[0016]
An upper frame member 16, a lower frame member 17, and a side frame member 18, which are strength members, are attached around the panel member 15 to form the panel 5, and the panel reinforcing member 19 which is a strength member at a required interval in the longitudinal direction. It is stretched between the upper frame member 16 and the lower frame member 17. The lower frame member 17 is the same as the lower frame member 10 described above, and has ribs 11 protruding in the room direction, and the cross-sectional area of the protruding end portion 11a of the ribs 11 is large.
[0017]
A hinge 6 is provided at the position of the panel reinforcing member 19 of the panels 5 and 5 positioned above and below. Further, the upper end engaging portion 20a of the rib reinforcing member 20 is fitted to the protruding end portion 11a of the rib 11, and the lower end flange portion 20b of the rib reinforcing member 20 is bolted to the panel reinforcing member 19 together with the hinge 6. .
[0018]
The rib reinforcing member 20 has a length provided over the entire length of the rib 11, the upper end engaging portion 20 a is formed in a bag shape so as to be fitted to the protruding end portion 11 a, and the rib 11 is formed, and the lower end flange portion 20 b is parallel to the surface of the panel reinforcing member 19.
[0019]
The rib reinforcing member 20 is attached by fitting the upper end engaging portion 20a to the protruding end portion 11a as described above, and fixing the edge tongue piece 20c to the rib 11 with a bolt 21 at a required interval. Further, the lower end flange portion 20 b and the hinge 6 are fastened together by bolts 22. The rib 11 is reinforced by attaching the rib reinforcing member 20.
[0020]
The rib reinforcing material 20 restrains buckling deformation of the protruding end portion 11a of the rib 11, and the rib reinforcing material 20 itself has a reinforcing action equivalent to that of the rib 11, and the strength of the panel 5 is increased. Greatly enhanced.
[0021]
Assuming that negative pressure is applied to the panel 5 to which the rib reinforcing material 20 is fixed, a load test is performed such that a compressive load is applied to the rib 11. Compared to the case of reinforcing with 12, the reinforcement was about 3 times.
[0022]
FIG. 3 is a view in which the upper end engaging portion 20a is fitted to the protruding end portion 11a and held by the protruding end portion 11a by the elastic force of the upper end engaging portion 20a. Fixing with the bolt 21 is omitted. The upper end engaging portion 20a and the protruding end portion 11a are fitted to each other by inserting the upper end engaging portion 20a into the protruding end portion 11a from the longitudinal direction or at one end of the protruding end portion 11a. The rib reinforcing member 20 is inserted and fitted into the upper end engaging portion 20a by using the elastic deformation of the upper end engaging portion 20a. The lower end flange portion 20 b is fastened together with the hinge 6 by the bolt 22. The rib reinforcing member 20 is fixed by the fitting force between the upper end engaging portion 20 a and the protruding end portion 11 a and the bolt 22.
[0023]
4 and 5 show other embodiments, and the rib reinforcing member 25 is provided not at the entire length of the rib 11 but at a required position, specifically, at a position corresponding to the panel reinforcing member 19.
[0024]
The rib reinforcing member 25 having a required width has an upper end engaging portion 25a fitted to the protruding end portion 11a at the upper end portion, and a lower end flange extending in parallel with the side surface of the panel reinforcing member 19 at the base end portion. A portion 25b is formed.
[0025]
The upper end engaging portion 25a has substantially the same cross-sectional shape as the upper end engaging portion 20a, and an edge tongue piece (not shown) is fixed to the rib 11 with a bolt, and the lower end flange portion 25b is fixed with a bolt 22. The panel reinforcing member 19 is fixed. In a state where the rib reinforcing material 25 is attached, the rib reinforcing material 25 is inclined with respect to the rib 11.
[0026]
Even when the rib reinforcing member 25 is partially provided instead of the entire length of the rib 11, a greater reinforcing strength can be obtained than when the reinforcing member 12 is attached. The rib reinforcing member 25 may be attached to the panel reinforcing member 19 on each side of the panel reinforcing member 19.
[0027]
Since the rib reinforcing material 20 and the rib reinforcing material 25 described above both restrain the deformation of the upper end portion of the rib 11, when a compressive load is applied to the rib 11, the buckling deformation is restrained and the buckling strength is increased. Can be significantly increased.
[0028]
In the above embodiment, the rib reinforcing member 20 is fastened together with the hinge 6, but may be bolted at a position where it does not interfere with the hinge 6. Further, as shown in FIG. 6, the rib reinforcing material may be a rib reinforcing material 26 in which the upper end engaging portion 20a is omitted. When the rib reinforcing material 26 is attached, the upper end is bolted to the intermediate portion of the rib 11. 21 is fixed.
[0029]
Further, as shown in FIG. 7, the panel 5 does not have the panel reinforcing member 19. In this case, both ends of the rib reinforcing member 20 may be fixed to the side frame members 18 on both sides. Furthermore, as shown in FIG. 8, the shape of the panel 5 is large in the vertical dimension, and the panel reinforcing member 19 is provided in the horizontal direction. It may be provided on the side frame member 18. In this case, the rib reinforcement member 20 is provided to the side frame member 18, and the rib reinforcement member 20 is fixed to the upper frame member 16, the lower frame member 17 and the panel reinforcement member 19 as described above. .
[0030]
Further, the rib 11 and the rib reinforcing member 20 are not limited to any one of the upper side frame member 16, the lower side frame member 17, and the side side frame member 18. It may be provided on the two frame members of the frame member 17 or on the left and right side frame members 18, or on the four frame members of the upper frame member 16, the lower frame member 17, and the side frame member 18, The protruding direction of the rib 11 is not limited to the back side, and it is sufficient that it protrudes in a direction perpendicular to the panel. Further, the panel reinforcing member 19 can be applied to the panel 5 provided in a lattice shape or a hooked shape, and the rib 11 can be provided on the panel reinforcing member 19. When the panel reinforcing member 19 is provided in a lattice shape or a hook shape, the rib reinforcing member 20 is also provided in a lattice shape or a hook shape. Furthermore, the rib reinforcing material may be fixed to the strength member itself on which the rib is formed.
[0031]
Furthermore, the present invention can also be applied to a large panel in which the building opening is opened and closed by a single panel.
[0032]
【The invention's effect】
As described above, according to the present invention, since the deformation of the rib is restrained by the rib reinforcing material, the bending rigidity and bending strength of the panel are enhanced. Further, by fitting a rib reinforcing material to the protruding end of the rib and fixing the upper end to the panel via the rib reinforcing material, the deformation of the protruding end is restrained, and the buckling strength of the rib is improved. The bending strength in the rib buckling direction with respect to the panel is further enhanced.
[0033]
Furthermore, if the rib reinforcing material is provided over the entire length of the rib, the rib reinforcing material itself exhibits a reinforcing action equivalent to that of the rib, and a higher bending strength is exhibited.
[Brief description of the drawings]
FIG. 1 is a rear view of a panel according to an embodiment of the present invention.
FIG. 2 is a view taken in the direction of arrows AA in FIG.
FIG. 3 is a partial view showing a modification of the embodiment.
FIG. 4 is a rear view showing another embodiment of the present invention.
FIG. 5 is a perspective view of a main part of the other embodiment.
FIG. 6 is a partial view showing another shape of the rib reinforcement member and another fixing method in the embodiment of the present invention.
FIG. 7 is a rear view of a panel according to another embodiment of the present invention.
FIG. 8 is a rear view of a panel according to still another embodiment of the present invention.
FIG. 9 is a schematic perspective view of an overdoor in which the present invention is implemented.
FIG. 10 is a side view corresponding to an AA arrow view showing a conventional example.
FIG. 11 is a side view corresponding to an AA arrow view showing another conventional example.
[Explanation of symbols]
5 Panel 11 Rib 11a Protruding end 17 Lower side frame member 19 Panel reinforcing member 20 Rib reinforcing member 20a Upper end engaging portion 25 Rib reinforcing member 26 Rib reinforcing member

Claims

The panel is composed of a strength member such as a panel material, a panel frame material, and a panel reinforcing member, and at least one of the strength members such as the panel frame material and the panel reinforcing member has a rib that protrudes in a direction perpendicular to the panel. A rib reinforcing member is provided over the upper end of the rib and the strength member, and the rib reinforcing member is a bag-like upper end engaging portion fitted to the upper end portion of the rib and a lower end flange attached to the strength member. A panel structure of a panel shutter, characterized in that the rib reinforcing member can be retrofitted to the panel.

The panel structure of the panel shutter according to claim 1, wherein a rib reinforcing member having a required width is provided corresponding to the panel reinforcing member .

The panel structure of the panel shutter according to claim 1 , wherein the rib reinforcing member has a length substantially equal to that of the rib.

2. The panel shutter panel structure according to claim 1, wherein the upper end engaging portion of the rib reinforcing member can be elastically fitted to the upper end portion of the rib.