JP6504837B2 - Method of supporting film-like member and support structure of film-like member - Google Patents

Method of supporting film-like member and support structure of film-like member Download PDF

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JP6504837B2
JP6504837B2 JP2015016050A JP2015016050A JP6504837B2 JP 6504837 B2 JP6504837 B2 JP 6504837B2 JP 2015016050 A JP2015016050 A JP 2015016050A JP 2015016050 A JP2015016050 A JP 2015016050A JP 6504837 B2 JP6504837 B2 JP 6504837B2
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JP2015163761A (en
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宏介 南波
宏介 南波
孝治 白井
孝治 白井
寛史 橋口
寛史 橋口
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Central Research Institute of Electric Power Industry
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Description

本発明は、膜状部材の支持方法及び膜状部材の支持構造に関する。さらに詳述すると、本発明は、例えば構造物や設備を防護する金網やネットなどを支持する仕組みとして用いて好適な膜状部材の支持の仕組みに関する。   The present invention relates to a method for supporting a film-like member and a support structure for a film-like member. More specifically, the present invention relates to, for example, a mechanism for supporting a film-like member that is preferably used as a mechanism for supporting a wire mesh, a net or the like that protects a structure or equipment.

防護に関連する従来のネットの支持構造としては、例えば、図１８に示すように、基礎杭１０２と該基礎杭１０２の頭部に差し込み固定しネット１０１を張架するためのケーブル支持用パイプバンド１０３又はフックバンド１０４を取着した上柱１０５とから構成される隅柱１０６及びステイ柱１０７並びに周囲柱１０８を所定位置に立設し、上柱１０５の所定位置には数段にワイヤケーブル１０９を張架し、該ワイヤケーブル１０９を介して全周側面及び天面にネット１０１を張るものがある（特許文献１）。   As a conventional net support structure related to protection, for example, as shown in FIG. 18, a cable support pipe band for inserting and fixing the foundation pile 102 and the head of the foundation pile 102 and stretching the net 101. A corner post 106, a stay post 107 and a surrounding post 108, each of which comprises an upper post 105 to which the hook band 103 is attached, and a surrounding post 108 are erected at predetermined positions. And the net 101 is stretched around the entire circumferential side surface and top surface through the wire cable 109 (Patent Document 1).

特開平９−２３８５８２号JP-A-9-238582

本発明者は、高速度で飛翔する飛来物から構造物や設備などを防護することを目的に防護ネット等の膜状部材を用いた防護方策について検討する中で、膜状部材の候補材に自由落下する重錘等を衝突させる自由落下試験を行うことにより、候補材の耐衝撃性能を評価した。そして、自由落下試験の結果、高強度金網は優れた耐衝撃性能が確認されたものの、支持条件や支持構造物の構造・態様によってその耐衝撃性能は大きく異なることを知見した。   The present inventor is a candidate material of a film-like member while examining a protection policy using a film-like member such as a protective net for the purpose of protecting a structure, equipment, etc. from high-speed flying objects. The impact resistance performance of the candidate material was evaluated by performing a free fall test in which a freely falling weight and the like collide. As a result of the free fall test, although high impact strength wire mesh was confirmed to have excellent impact resistance performance, it was found that the impact resistance performance is largely different depending on the support conditions and the structure and mode of the support structure.

具体的には、高強度金網は主に法面補強や落石防護柵等で使用されており、金網はワイヤロープを介して支持柱に取り付けられ支持されるところ、構造物や設備を防護することを目的とした場合、構造物等の周りに設置された鉄骨構造（鉄骨の枠組み）に金網を取り付けることから、金網端部を強固なボルト等で鉄骨の枠組みに固定する取り付け方法が施工性の面で有利になる。そこで、鉄骨構造（鉄骨の枠組み）を見立てた平面視矩形のネット支持構造に高強度金網を取り付けた試験体を製作し、自由落下する重錘を衝突させる自由落下試験を実施した。試験は、金網の短辺を鉄骨の枠組みにボルトで固定すると共に長辺をワイヤロープで支持した短辺固定型試験体と、金網の全周をワイヤロープで支持した全周可動型試験体との二種類について実施した。   Specifically, high-strength wire mesh is mainly used for reinforcement of slopes and fall fences, etc., and wire mesh is attached to and supported by a support column via a wire rope to protect structures and equipment. Since the wire mesh is attached to the steel frame structure (framework of steel frame) installed around the structure etc., the attachment method of fixing the wire mesh end to the frame of steel frame with a strong bolt etc. It is advantageous in terms of Therefore, a test body in which a high strength wire mesh was attached to a net support structure of a rectangular shape in a plan view in which a steel frame structure (framework of steel frame) was erected was manufactured, and a free fall test in which a freely falling weight was made to collide was conducted. In the test, the short side of the wire mesh is bolted to the frame of the steel frame by bolts and the long side is supported by the wire rope, and the movable edge of the wire mesh is supported by the wire rope. It carried out about two kinds of.

試験結果から、短辺固定型試験体では、金網は端部を拘束されて自由に変形することができないため、金網の耐衝撃性能が十分に発揮されずに重錘が貫通することが明らかになった。さらに、長辺を支持するワイヤロープに破断が発生した。一方、全周可動型試験体では、金網が過度に拘束されておらずワイヤロープのたわみによって自由に変形することができるため、金網の所定の耐衝撃性能が発揮されて重錘の貫通が防止されることが明らかになった。また、ワイヤロープに破断が発生しないことも明らかになった。しかしながら、全周可動型試験体では、ワイヤロープの取り付け部である鉄骨の枠組みの隅角部に変形が発生し、この変形によってワイヤロープに発生する張力の急激な増加が緩和されて脆性的な破断に至らなかった可能性が考えられた。   From the test results, it is clear that in the short side fixed type test body, since the wire mesh can not be deformed freely because the wire mesh is restrained at the end, the weight can penetrate without sufficiently exhibiting the impact resistance performance of the wire mesh became. In addition, breakage occurred in the wire rope supporting the long side. On the other hand, in the all-around movable type test body, the wire mesh is not excessively restrained and can be freely deformed by the deflection of the wire rope, so that the predetermined impact resistance performance of the wire mesh is exhibited and penetration of the weight is prevented. It became clear to be done. In addition, it was also revealed that no breakage occurred in the wire rope. However, in the all-around movable type test body, deformation occurs at the corner of the framework of the steel frame that is the attachment part of the wire rope, and this deformation alleviates the rapid increase in tension generated in the wire rope, making it brittle It was thought that the possibility of failure was not reached.

これらの知見に基づき、金網などの膜状部材の耐衝撃性能を十分に発揮させることができ、尚且つ、膜状部材が取り付けられる枠組みの変形を抑制すると共に膜状部材を支持するためのワイヤロープなどの線状部材に発生する張力の急激な増加を緩和することができる膜状部材の支持の仕組みが望まれた。   Based on these findings, it is possible to sufficiently exhibit the impact resistance performance of a membrane-like member such as a wire mesh, and to suppress deformation of a framework to which the membrane-like member is attached and to support the membrane-like member It has been desired to provide a film-like member supporting mechanism capable of alleviating a rapid increase in tension generated in a linear member such as a rope.

そこで、本発明は、膜状部材の耐衝撃性能を十分に発揮させることができ、尚且つ、膜状部材が取り付けられる枠組みの変形を抑制すると共に膜状部材を支持する線状部材に発生する張力の急激な増加を緩和することができる膜状部材の支持方法及び膜状部材の支持構造を提供することを目的とする。   Therefore, the present invention can sufficiently exhibit the impact resistance performance of the film-like member, and generates a linear member supporting the film-like member while suppressing deformation of the framework to which the film-like member is attached. It is an object of the present invention to provide a support method for a film-like member and a support structure for a film-like member capable of relieving a rapid increase in tension.

かかる目的を達成するため、本発明の膜状部材の支持方法は、支持部を備える枠体に前記支持部を介して支持される線状部材によって膜状部材の周縁部が全周に亙って支持され、前記支持部が緩衝体を有し、緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有するようにしている。 To achieve the above object, the supporting method of the film-like member of the present invention, the peripheral edge portion of the film member by a linear member which is supported via the supporting portion to the frame body comprises a support portion the entire circumference The support portion includes a buffer, and the buffer includes an outer cylinder forming an outer peripheral wall and a buffer member disposed inside the outer cylinder .

また、本発明の膜状部材の支持構造は、膜状部材と、線状部材と、支持部を備える枠体とを有し、線状部材は支持部を介して枠体に支持され、膜状部材の周縁部が全周に亙って線状部材によって支持され、支持部が緩衝体を有し、緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有するようにしている。 Further, the support structure for a film-like member of the present invention comprises a film-like member, a linear member, and a frame provided with a support portion, the linear member being supported by the frame via the support portion , The peripheral portion of the annular member is supported by the linear member all around , the support portion has a buffer body, and the buffer body is an outer cylinder that constitutes the outer peripheral wall and the buffer arranged inside the outer cylinder It is made to have a member .

したがって、これらの膜状部材の支持方法及び膜状部材の支持構造によると、膜状部材の周縁部の全周が線状部材によって支持されるようにしているので、膜状部材の耐衝撃性能が十分に発揮され且つ枠体の変形が抑制されると共に線状部材に発生する張力の急激な増加が緩和される。   Therefore, according to the supporting method of the film-like member and the support structure of the film-like member, since the entire periphery of the peripheral part of the film-like member is supported by the linear member, impact resistance performance of the film-like member And the deformation of the frame is suppressed and the rapid increase of the tension generated in the linear member is alleviated.

また、本発明の膜状部材の支持方法及び膜状部材の支持構造は、膜状部材の全周が線状部材によって支持されることに加えて線状部材を支持する支持部が緩衝体を有するようにしているので、膜状部材の耐衝撃性能が十分に発揮され且つ枠体の変形がより一層抑制されると共に線状部材に発生する張力の急激な増加がより一層緩和される。 The support structure of the support methods and membrane member of the membrane-like member of the present invention, the support portion the entire circumference of the film member to support the linear member in addition to being supported by the linear member is a cushion Since the film-like member is provided, the impact resistance performance of the film-like member is sufficiently exhibited, deformation of the frame is further suppressed, and a rapid increase in tension generated in the linear member is further alleviated.

また、本発明の膜状部材の支持方法及び膜状部材の支持構造は、緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有するようにしているので、支持部の緩衝体が、枠体の変形の抑制と線状部材に発生する張力の急激な増加の緩和とが実現されるために適切なものになる。 Further, the method for supporting a membrane-like member and the support structure for a membrane-like member according to the present invention is such that the shock absorber has an outer cylinder constituting an outer peripheral wall and a shock absorbing member disposed inside the outer cylinder . Therefore , the buffer of the support portion is appropriate because the suppression of the deformation of the frame and the alleviation of the rapid increase of the tension generated in the linear member are realized.

また、本発明の膜状部材の支持方法及び膜状部材の支持構造は、線状部材の少なくとも一端が、引張力に対して引張りの向きに変形しつつ抵抗力を発揮する機構によって枠体に取り付けられるようにしても良い。この場合には、膜状部材の全周が線状部材によって支持されることに加えて線状部材が変形しつつ抵抗力を発揮する機構によって枠体に取り付けられるようにしているので、膜状部材の耐衝撃性能が十分に発揮され且つ枠体の変形がより一層抑制されると共に線状部材に発生する張力の急激な増加がより一層緩和される。   Further, in the method of supporting a film-like member and the support structure of a film-like member according to the present invention, at least one end of the linear member is a frame by a mechanism that exerts resistance while deforming in a tensile direction against tensile force. It may be attached. In this case, in addition to the fact that the entire periphery of the membrane member is supported by the linear member, the linear member is attached to the frame by a mechanism that exerts resistance while being deformed, The impact resistance performance of the member is sufficiently exhibited, deformation of the frame is further suppressed, and the rapid increase in tension generated in the linear member is further alleviated.

本発明の膜状部材の支持方法及び膜状部材の支持構造によれば、膜状部材の耐衝撃性能を十分に発揮させ且つ枠体の変形を抑制すると共に線状部材に発生する張力の急激な増加を緩和することができるので、膜状部材の破裂や線状部材の破断を防止して対象物を確実に防護し、防護方策としての確実性を向上させて信頼性の向上を図ることが可能になる。   According to the film-like member supporting method and the film-like member supporting structure of the present invention, the impact resistance performance of the film-like member can be sufficiently exhibited and deformation of the frame can be suppressed and rapid tension generated in the linear member It is possible to mitigate the increase in the number, so that the rupture of the film member and the breakage of the linear member can be prevented to securely protect the object, and the certainty as a protection measure can be improved to improve the reliability. Becomes possible.

さらに、本発明の膜状部材の支持方法及び膜状部材の支持構造は、枠体の支持部が緩衝体を有するようにしても良く、この場合には、膜状部材の耐衝撃性能が十分に発揮され且つ枠体の変形をより一層抑制すると共に線状部材に発生する張力の急激な増加をより一層緩和することができるので、膜状部材の破裂や線状部材の破断をより一層確実に防止して対象物を確実に防護し、防護方策としての確実性をより一層向上させて信頼性のより一層の向上を図ることが可能になる。   Furthermore, in the method for supporting a membrane-like member and the support structure for a membrane-like member according to the present invention, the support portion of the frame may have a buffer, and in this case, the impact resistance performance of the membrane-like member is sufficient. It is possible to further suppress the deformation of the frame and further alleviate the rapid increase of the tension generated in the linear member, so that the rupture of the film-like member and the breakage of the linear member are further assured. It is possible to prevent the object to be surely protected, to further improve the certainty as a protection measure and to further improve the reliability.

さらに、本発明の膜状部材の支持方法及び膜状部材の支持構造は、緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有するようにしても良く、この場合には、支持部の緩衝体を、枠体の変形の抑制と線状部材に発生する張力の急激な増加の緩和とを実現するために適切なものにすることができるので、膜状部材の破裂や線状部材の破断をより一層確実に防止して対象物を確実に防護し、防護方策としての確実性をより一層向上させて信頼性のより一層の向上を図ることが可能になる。   Further, in the method of supporting a membrane-like member and the support structure of a membrane-like member according to the present invention, the shock absorber may have an outer cylinder constituting an outer peripheral wall and a shock absorbing member disposed inside the outer cylinder. In this case, since the buffer of the support portion can be made suitable in order to realize the suppression of the deformation of the frame and the alleviation of the rapid increase of the tension generated in the linear member, It is possible to prevent the rupture of the film-like member and the breakage of the linear member more reliably to protect the object reliably and to further improve the reliability as a protection measure to further improve the reliability. It will be possible.

さらに、本発明の膜状部材の支持方法及び膜状部材の支持構造は、変形しつつ抵抗力を発揮する機構によって線状部材が枠体に取り付けられるようにしても良く、この場合には、この場合には、膜状部材の耐衝撃性能が十分に発揮され且つ枠体の変形をより一層抑制すると共に線状部材に発生する張力の急激な増加をより一層緩和することができるので、膜状部材の破裂や線状部材の破断をより一層確実に防止して対象物を確実に防護し、防護方策としての確実性をより一層向上させて信頼性のより一層の向上を図ることが可能になる。   Furthermore, in the method of supporting a film-like member and the support structure of a film-like member according to the present invention, the linear member may be attached to the frame by a mechanism that exerts resistance while deforming. In this case, since the impact resistance performance of the film-like member can be sufficiently exhibited and deformation of the frame can be further suppressed, it is possible to further alleviate the rapid increase in tension generated in the linear member. It is possible to prevent the rupture of the rod-like member and the breakage of the linear member more reliably to protect the object reliably, to further improve the reliability as a protection measure and to further improve the reliability. become.

本発明の膜状部材の支持方法及び膜状部材の支持構造の実施形態の一例を示す平面図であり、枠体の各辺を構成するＨ形鋼の上フランジと枠体の各角部の上側鋼板とを取り除いた状態（言い換えると、上フランジ及び上側鋼板を透明にした状態）の図である。It is a top view which shows an example of the support method of the film-like member of this invention, and the support structure of a film-like member, and is an upper flange of H section steel which comprises each edge of a frame, and each corner of a frame It is a figure of the state which removed the upper side steel plate (in other words, the state which made the upper flange and the upper side steel plate transparent). 実施形態の膜状部材の支持構造の正面図及び縦断面図である。(Ａ)は正面図である。(Ｂ)は図１のＩ−Ｉ矢視図である。It is the front view and longitudinal cross-sectional view of the support structure of the film-like member of embodiment. (A) is a front view. (B) is an II arrow line view of FIG. 実施形態の膜状部材の支持構造の側面図及び縦断面図である。(Ａ)は左側面図である。(Ｂ)は図１のII−II矢視図である。It is a side view and a longitudinal cross-sectional view of the support structure of the film-like member of embodiment. (A) is a left side view. (B) is a II-II arrow line view of FIG. 実施形態の膜状部材の支持構造の支持部を含む枠体の角部の側面図である。It is a side view of a corner of a frame containing a supporter of a support structure of a filmlike member of an embodiment. 実施形態の膜状部材の支持構造の支持部の平面図である。It is a top view of the support part of the support structure of the film-like member of embodiment. 実施形態の膜状部材の支持構造における支持部による線状部材の支持を説明する模式図である。It is a schematic diagram explaining support of the linear member by the support part in the support structure of the film-like member of embodiment. 本発明の膜状部材の支持方法及び膜状部材の支持構造の他の実施形態の一例を示す平面図である。It is a top view which shows an example of other embodiment of the support method of the film-like member of this invention, and the support structure of a film-like member. 本発明の膜状部材の支持方法及び膜状部材の支持構造における膜状部材の支持の態様の他の形態の例を示す平面図である。It is a top view which shows the example of the support method of the film-like member of this invention, and the other form of the aspect of support of the film-like member in the support structure of a film-like member. 本発明の膜状部材の支持方法及び膜状部材の支持構造における膜状部材の支持の態様の更に他の形態の例を示す平面図である。It is a top view which shows the example of the other aspect of the support method of the film-like member of this invention, and the support form of the film-like member in the support structure of a film-like member. 本発明の膜状部材の支持方法及び膜状部材の支持構造における支持部内の緩衝体の他の形態の例を示す平面図である。It is a top view which shows the example of the support method of the film-like member of this invention, and the other form of the buffer body in the support part in the support structure of a film-like member. 本発明の膜状部材の支持方法及び膜状部材の支持構造の更に他の実施形態の一例を説明する図であり、膜状部材と補助膜状部材との上下方向における配置関係を説明する概念図である。It is a figure explaining an example of the support method of a filmy member of the present invention, and the support structure of a filmy member according to another example, and the concept of explaining the arrangement relation in the up-and-down direction of a filmy member and an auxiliary filmy member. FIG. 本発明の膜状部材の支持方法及び膜状部材の支持構造のまた更に他の実施形態の一例を説明する図であり、膜状部材と補助膜状部材との上下方向における配置関係を説明する概念図である。It is a figure explaining an example of the support method of a filmy member of the present invention, and the support structure of a filmy member according to further another embodiment, and explains the arrangement relation in the up-and-down direction of a filmy member and an auxiliary filmy member. It is a conceptual diagram. 図１１や図１２に示す実施形態における取付部材の例を説明する図である。It is a figure explaining the example of the attachment member in embodiment shown in FIG.11 and FIG.12. 金網の展開方向及び展開直角方向を説明するための菱形金網の一部拡大図である。It is a partially expanded view of the rhombus wire mesh for demonstrating the expansion direction and the expansion | deployment orthogonal direction of a metal mesh. 膜状部材の展開方向と補助膜状部材の展開方向との関係を説明する図である。It is a figure explaining the relationship between the expansion | deployment direction of a film-like member, and the expansion | deployment direction of an auxiliary film-like member. 実施例１の緩衝体の解析モデルを示す平面図である。(Ａ)は解析開始前の初期状態を示す図である。(Ｂ)は解析終了時の変形状態を示す図である。FIG. 7 is a plan view showing an analysis model of the buffer of Example 1; (A) is a figure which shows the initial state before an analysis start. (B) is a figure which shows the deformation | transformation state at the time of completion | finish of analysis. 実施例１の緩衝体による吸収エネルギーの時刻歴を示す図である。It is a figure which shows the time history of the energy absorbed by the buffer body of Example 1. FIG. 従来のネットの支持構造を示す斜視図である。It is a perspective view which shows the support structure of the conventional net | network.

以下、本発明の構成を図面に示す実施の形態の一例に基づいて詳細に説明する。   Hereinafter, the configuration of the present invention will be described in detail based on an example of the embodiment shown in the drawings.

図１から図６に、本発明の膜状部材の支持方法及び膜状部材の支持構造の実施形態の一例を示す。   FIGS. 1 to 6 show an embodiment of the method for supporting a film-like member and the support structure for a film-like member according to the present invention.

本実施形態の膜状部材の支持方法は、支持部４を備える枠体３に支持部４を介して支持される線状部材２によって膜状部材１の周縁部が全周に亙って支持されるようにしている。   In the method for supporting a film-like member according to the present embodiment, the peripheral portion of the film-like member 1 is supported over the entire circumference by the linear member 2 supported via the support 4 on the frame 3 provided with the support 4 To be done.

また、本実施形態の膜状部材の支持構造は、膜状部材１と、線状部材２と、支持部４を備える枠体３とを有し、線状部材２は支持部４を介して枠体３に支持され、膜状部材１の周縁部が全周に亙って線状部材２によって支持されるようにしている。   Further, the support structure of the film-like member of the present embodiment includes the film-like member 1, the linear member 2, and the frame 3 provided with the support portion 4, and the linear member 2 It is supported by the frame 3 so that the peripheral portion of the film-like member 1 is supported by the linear member 2 over the entire circumference.

さらに、本実施形態の膜状部材の支持構造は、支持部４が緩衝体６を有し、具体的には、支持部４が外周壁としての外径保持部材４ａを有すると共に、当該外径保持部材４ａの内側に緩衝体６が収容され、当該緩衝体６が外周壁を構成する外筒６Ａと当該外筒６Ａの内側に配設される緩衝部材６Ｂとを有するようにしている。   Furthermore, in the support structure of the film-like member of the present embodiment, the support portion 4 has the buffer body 6, and specifically, the support portion 4 has the outer diameter holding member 4a as the outer peripheral wall, and the outer diameter A buffer 6 is accommodated inside the holding member 4a, and the buffer 6 has an outer cylinder 6A constituting an outer peripheral wall and a buffer member 6B disposed inside the outer cylinder 6A.

枠体３は、膜状部材１を支持するためのものであり、膜状部材１によって防護する物、具体的には例えば構造物全体若しくは一部や種々の設備など（以下、防護対象物という）を覆う範囲を囲むように設けられる。   The frame 3 is for supporting the film-like member 1, and an object to be protected by the film-like member 1, specifically, for example, the whole or a part of a structure or various facilities (hereinafter referred to as a protection object) It is provided so that the range which covers) may be enclosed.

枠体３は、防護対象物を覆う範囲を閉じた領域として区画するように一回り連続するものとして設けられることが好ましいものの、部分的に途切れていても構わない。また、枠体３として独立した部材によって枠体３が構成されることが好ましいものの、防護対象物に纏わる設備・施設としてもとより存在するものを枠体３として利用するようにしても良い。   Although it is preferable that the frame 3 be provided as a continuous line so as to partition the range covering the protection target as a closed region, the frame 3 may be partially disconnected. Moreover, although it is preferable that the frame 3 is comprised by the member which became independent as the frame 3, you may make it utilize the thing which exists originally as an installation and the facility related to a protection target as the frame 3.

枠体３の材質及び断面形状は、特定のものに限定されるものではなく、想定される飛来物などに対する防護設備として通常必要とされる強度を発揮し得るものであれば良い。具体的には例えばＨ形鋼，Ｉ形鋼，山形鋼，溝形鋼が用いられ得る。   The material and the cross-sectional shape of the frame 3 are not limited to specific ones, as long as they can exhibit the strength usually required as protective equipment against assumed flying objects and the like. Specifically, for example, H-shaped steel, I-shaped steel, angle steel, and channel steel may be used.

枠体３の平面視形状は、特定の形状に限定されるものではなく、防護対象物を覆う範囲を囲むように適当な形状（具体的には例えば、種々の多角形や楕円形・円形やこれらが複数組み合わされた形状）に設定される。本実施形態では、枠体３は、平面視形状が長方形であるように形成される。   The plan view shape of the frame 3 is not limited to a specific shape, and an appropriate shape (specifically, for example, various polygons, ovals, circles, or the like) may be provided so as to surround the range covering the protection target. These are set to a plurality of combined shapes). In the present embodiment, the frame 3 is formed so as to have a rectangular shape in plan view.

枠体３は、本実施形態では具体的には、長方形の各辺がＨ形鋼によって構成されると共に長方形の各角部３Ａが対向する一対の上下の鋼板３ａ，３ｂによって構成され、これらＨ形鋼と上下の鋼板３ａ，３ｂそれぞれとが溶接されて形成される。なお、図１は、枠体３の各辺を構成するＨ形鋼の上フランジと枠体３の各角部３Ａの上側鋼板３ａとを取り除いた状態（言い換えると、上フランジ及び上側鋼板３ａを透明にした状態）の図である。   Specifically, in the present embodiment, the frame 3 is formed of a pair of upper and lower steel plates 3a and 3b in which each side of the rectangle is made of H-shaped steel and each rectangular corner 3A faces each other. The shaped steel and the upper and lower steel plates 3a and 3b are formed by welding. FIG. 1 shows a state in which the upper flange of H-shaped steel forming each side of the frame 3 and the upper steel plate 3a of each corner 3A of the frame 3 are removed (in other words, the upper flange and the upper steel plate 3a It is a figure of the state made transparent.

膜状部材１は、飛来物などから防護対象物を防護するためのものであり、枠体３に支持されて防護対象物を覆うように張られて設けられる。   The film-like member 1 is for protecting an object to be protected from flying objects and the like, and is supported by the frame 3 and stretched to cover the object to be protected.

膜状部材１の態様や材質は、特定のものに限定されるものではなく、想定される飛来物などに対する防護設備として通常必要とされる強度を有するものであれば良い。具体的には例えばステンレス鋼や鉄などの金属材料製の金網（例えば、菱形金網（高強度金網や特殊菱形金網とも呼ばれるものを含む），亀甲金網など），種々の合成樹脂繊維製や天然繊維製の繊維網などが用いられ得る。   The aspect and material of the film-like member 1 are not limited to specific ones, and may be those having strength that is usually required as protection equipment against assumed flying objects and the like. Specifically, for example, wire mesh made of metal material such as stainless steel or iron (for example, rhombus wire mesh (including high strength wire mesh and special rhombus wire mesh, etc., turtle mesh gauze, etc.), various synthetic resin fibers and natural fibers A fiber mesh made of nylon may be used.

膜状部材１として、本実施形態では具体的には、素線径（言い換えると、列線の径）が４．０ ｍｍ で素線強度が１４００ Ｎ／ｍｍ２ の亜鉛メッキ鋼線を用いて網目の開口寸法（目合い寸法とも呼ばれる）が５０ ｍｍ として三次元的に編み込まれた菱形金網が用いられる。本実施形態の膜状部材１は、また、枠体３の各辺を構成する各Ｈ形鋼のウェブによって囲まれる空間よりも若干小さい平面視矩形に形成される。 Specifically, in the embodiment, a galvanized steel wire having a wire diameter (in other words, a diameter of a row wire) of 4.0 mm and a wire strength of 1400 N / mm 2 is used as the film-like member 1. A three-dimensionally braided rhombic wire mesh having an opening size of the mesh (also called a mesh size) of 50 mm is used. The film-like member 1 of the present embodiment is also formed in a rectangular shape in plan view slightly smaller than the space surrounded by the webs of the respective H-shaped steels constituting the respective sides of the frame 3.

なお、上記の例は好ましい一例であると言えるものの、膜状部材１として金網が用いられる場合の当該金網の素線径，素線強度，及び開口寸法は、上記の例に限定されるものではなく、また、特定の値や範囲に限定されるものではない。具体的には例えば、素線径は大凡３．５〜４．５ ｍｍ 程度の範囲のいずれかの値に設定されることが一例として挙げられる。また、素線強度は、大凡１０００ Ｎ／ｍｍ２ 程度以上のものが選択されることが一例として挙げられ、そして、大凡１２００ Ｎ／ｍｍ２ 程度以上のものが好ましい範囲として挙げられ、さらに、大凡１４００ Ｎ／ｍｍ２ 程度以上のものがより一層好ましい範囲として挙げられる。また、開口寸法は大凡３５〜５５ ｍｍ 程度の範囲のいずれかの値に設定されることが一例として挙げられる。 Although the above example is a preferable example, the wire diameter, the wire strength and the opening size of the wire mesh in the case where the wire mesh is used as the film-like member 1 are limited to the above example. Also, it is not limited to a specific value or range. Specifically, for example, it is mentioned that the wire diameter is set to any value in the range of about 3.5 to 4.5 mm. The wire strength is, for example, about 1000 N / mm 2 or more, and is preferably about 1200 N / mm 2 or more. A range of about 1400 N / mm 2 or more is mentioned as a still more preferable range. The opening size may be set to any value in the range of about 35 to 55 mm 2 as an example.

線状部材２は、膜状部材１と枠体３との間に介在して膜状部材１を枠体３に支持させるためのものであり、膜状部材１の周縁部に配設される。   The linear member 2 is for interposing the film-like member 1 between the film-like member 1 and the frame 3 to support the film-like member 1 on the frame 3, and is disposed on the periphery of the film-like member 1 .

線状部材２の材質は、特定のものに限定されるものではなく、想定される飛来物などに対する防護設備としての膜状部材１を支持する部材として通常必要とされる強度を有するものであれば良い。具体的には例えば硬鋼線やステンレス鋼線やピアノ線などによって撚られたワイヤロープが用いられ得る。   The material of the linear member 2 is not limited to a specific one, and may have the strength usually required as a member for supporting the film-like member 1 as a protection facility against assumed flying objects etc. Just do it. Specifically, for example, a wire rope twisted by hard steel wire, stainless steel wire, piano wire or the like may be used.

膜状部材１への線状部材２の取り付け方は、特定のものに限定されるものではなく、膜状部材１の態様などに合わせて適当なものが適宜選択される。具体的には例えば、膜状部材１を縫うようにして線状部材２が取り付けられるようにしても良いし、グリップなどを用いて線状部材２が取り付けられるようにしても良い。   The attachment method of the linear member 2 to the film-like member 1 is not limited to a specific one, and an appropriate one is appropriately selected according to the aspect of the film-like member 1 and the like. Specifically, for example, the linear member 2 may be attached by sewing the film-like member 1 or the linear member 2 may be attached using a grip or the like.

本実施形態では具体的には、線状部材２としてステンレスロープが用いられ、そして、線状部材２としてのステンレスロープは膜状部材１の各辺の周縁部を並縫い（ぐし縫いとも呼ばれる）するように金網の目に通されることによって膜状部材１に取り付けられる。   Specifically, in the present embodiment, a stainless steel rope is used as the linear member 2, and the stainless steel rope as the linear member 2 is sewn (also referred to as sewing) at the peripheral edge of each side of the membrane member 1. It is attached to the film-like member 1 by threading a wire mesh.

線状部材２の両端は、第一の取付具と第二の取付具とによってそれぞれ枠体３に取り付けられる。   Both ends of the linear member 2 are attached to the frame 3 by a first attachment and a second attachment, respectively.

本実施形態では、線状部材２の一端にはアルミロック加工２ａによって輪２Ａが形成され、他端にはワイヤグリップ１０が用いられて輪２Ｂが形成される。なお、図１では、ワイヤグリップ１０の図示を省略している。   In the present embodiment, the ring 2A is formed at one end of the linear member 2 by the aluminum lock processing 2a, and the wire grip 10 is used at the other end to form the ring 2B. In addition, illustration of the wire grip 10 is abbreviate | omitted in FIG.

また、枠体３を構成する二組の対向する一対の辺のうち、一方の対向する一対の辺のそれぞれには第一の取付具としてのシャックル１１，１１が取り付けられ、他方の対向する一対の辺のそれぞれには第二の取付具としてのパイプ式ターンバックル１２，１２が取り付けられる。なお、本実施形態では、シャックル１１，１１及びパイプ式ターンバックル１２，１２は、枠体３を構成するＨ形鋼の上下のフランジとウェブとに固定された取付部を介し、ウェブの外側（即ち、膜状部材１側の反対側）に取り付けられる。ただし、シャックル１１やパイプ式ターンバックル１２の取り付け構造はこれに限られるものではない。   Moreover, the shackles 11 and 11 as a 1st fixture are attached to each of a pair of opposing sides among one pair of opposing sides which comprise the frame 3, and the other opposing pair Attached to each of the sides are the pipe type turnbuckles 12, 12 as a second attachment. In the present embodiment, the shackles 11 and 11 and the pipe type turn buckles 12 and 12 are attached to the outside of the web through the attachment portions fixed to the upper and lower flanges and the web of the H-shaped steel that constitutes the frame 3 That is, it is attached to the opposite side to the film-like member 1 side. However, the mounting structure of the shackle 11 and the pipe type turnbuckle 12 is not limited to this.

そして、線状部材２の一端の輪２Ａがシャックル１１に連結され、他端の輪２Ｂがパイプ式ターンバックル１２に連結される。これにより、線状部材２の両端が枠体３に取り付けられる。   The ring 2A at one end of the linear member 2 is connected to the shackle 11, and the ring 2B at the other end is connected to the pipe type turnbuckle 12. Thus, both ends of the linear member 2 are attached to the frame 3.

なお、線状部材２の枠体３への取り付けの態様は上述のものには限られない。すなわち、アルミロック加工２ａやワイヤグリップ１０の利用によって線状部材２の端部に輪２Ａ，２Ｂが形成されることは本発明において必須の構成ではなく、また、第一の取付具や第二の取付具としてシャックルやパイプ式ターンバックルを用いることも本発明において必須の構成ではない。   In addition, the aspect of attachment to the frame 3 of the linear member 2 is not restricted to the above-mentioned thing. That is, the formation of the rings 2A and 2B at the end of the linear member 2 by use of the aluminum lock processing 2a and the wire grip 10 is not an essential configuration in the present invention, and the first fixture and the second The use of a shackle or a pipe type turnbuckle as a mounting tool is not an essential configuration in the present invention.

支持部４は、線状部材２を枠体３に支持させるためのもの、言い換えると、周縁部に線状部材２が取り付けられた膜状部材１を枠体３に装着させるためのものであると共に、膜状部材１及び線状部材２に作用する飛来物などの衝撃荷重を吸収するためのものである。   The supporting portion 4 is for supporting the linear member 2 by the frame 3, in other words, for mounting the film-like member 1 having the linear member 2 attached to the peripheral edge to the frame 3. At the same time, it is for absorbing impact load such as flying objects acting on the film-like member 1 and the linear member 2.

支持部４は、本実施形態では、平面視長方形の枠体３の四つの角部３Ａのそれぞれに一つずつ合計四つ設けられる。   In the present embodiment, a total of four supporting portions 4 are provided at each of four corner portions 3A of the frame 3 having a rectangular shape in a plan view.

支持部４は、外周壁である外径保持部材４ａ、及び、当該外径保持部材４ａの内側に収容される固定ボルト５と緩衝体６と抑え板７とを有する。本実施形態では、支持部４は、枠体３の角部３Ａを構成する上側鋼板３ａと下側鋼板３ｂとの間に配設される。   The support portion 4 has an outer diameter holding member 4 a which is an outer peripheral wall, and a fixing bolt 5 which is accommodated inside the outer diameter holding member 4 a, a buffer 6 and a pressure plate 7. In the present embodiment, the support portion 4 is disposed between the upper steel plate 3 a and the lower steel plate 3 b that constitute the corner 3 A of the frame 3.

外径保持部材４ａは、支持部４が変形する際に当該支持部４がそのまとまりを維持するためのものであり、円筒状に形成される。   The outer diameter holding member 4a is for the support portion 4 to maintain its unity when the support portion 4 is deformed, and is formed in a cylindrical shape.

外径保持部材４ａの材質及び板厚は、特定のものに限定されるものではなく、或る程度の荷重（具体的には、線状部材２に発生すると想定される張力）によって変形はするものの破断はしない材質と板厚との組み合わせが適宜選択される。本実施形態では、外径保持部材４ａとして、適当な板厚を有する鋼管が用いられる。   The material and thickness of the outer diameter holding member 4a are not limited to specific ones, and they are deformed by a certain load (specifically, tension assumed to be generated in the linear member 2). A combination of material and thickness that does not break is selected appropriately. In the present embodiment, a steel pipe having an appropriate plate thickness is used as the outer diameter holding member 4a.

固定ボルト５は、支持部４を枠体３に対して位置固定するためのものであり、枠体３の角部３Ａを構成する上側鋼板３ａと下側鋼板３ｂとに対して固定されて取り付けられる。本実施形態では具体的には、下側鋼板３ｂの上面に台座３ｃが溶接によって取り付けられ、三本の固定ボルト５が上側鋼板３ａと台座３ｃの天板とを貫通してナットにより締め付けられることによって上下の鋼板３ａ，３ｂに固定されて取り付けられる。なお、固定ボルト５の本数は、三本に限られるものではなく、一本又は二本でも良いし、四本以上でも良い。   The fixing bolt 5 is for fixing the position of the support portion 4 with respect to the frame 3 and is fixed and attached to the upper steel plate 3a and the lower steel plate 3b which constitute the corner portion 3A of the frame 3 Be Specifically, in the present embodiment, the pedestal 3c is attached to the upper surface of the lower steel plate 3b by welding, and the three fixing bolts 5 penetrate the upper steel plate 3a and the top plate of the pedestal 3c and are tightened by nuts. By being fixed to the upper and lower steel plates 3a and 3b. The number of fixing bolts 5 is not limited to three, and may be one or two, or four or more.

緩衝体６は、自身が横方向に変形する（言い換えると、横方向に押し潰される）ことにより、線状部材２によって伝達される、膜状部材１に作用する飛来物などの衝撃荷重を吸収するためのものである。   The shock absorbing body 6 absorbs an impact load such as a flying object acting on the film-like member 1 transmitted by the linear member 2 by being deformed in the lateral direction (in other words, squeezed in the lateral direction). It is to do.

緩衝体６は、外周壁を構成する外筒６Ａと、当該外筒６Ａの内側に配設される緩衝部材６Ｂとを有する。   The buffer 6 has an outer cylinder 6A constituting an outer peripheral wall, and a buffer member 6B disposed inside the outer cylinder 6A.

外筒６Ａは、自身が変形することによって衝撃荷重を吸収すると共に、緩衝体６が変形する際に当該緩衝体６がそのまとまりを維持するためのものである。   The outer cylinder 6 </ b> A absorbs an impact load by deformation of the outer cylinder 6 </ b> A, and the buffer 6 maintains its unity when the buffer 6 is deformed.

外筒６Ａの材質及び板厚は、特定のものに限定されるものではなく、想定される荷重（具体的には、線状部材２に発生すると想定される張力）を変形することによって吸収するのに適当な材質と板厚との組み合わせが適宜選択される。本実施形態では、外筒６Ａとして、想定される衝突荷重に基づいて決定された適当な板厚を有する鋼管が用いられる。   The material and thickness of the outer cylinder 6A are not limited to specific ones, and are absorbed by deforming the assumed load (specifically, the tension assumed to be generated in the linear member 2). A suitable combination of material and thickness is appropriately selected. In the present embodiment, a steel pipe having an appropriate thickness determined based on the assumed collision load is used as the outer cylinder 6A.

緩衝部材６Ｂは、外筒６Ａと共に変形することによって衝撃荷重を吸収するためのものである。   The shock absorbing member 6B is for absorbing an impact load by deforming with the outer cylinder 6A.

緩衝部材６Ｂの材質は、特定のものに限定されるものではなく、想定される荷重（具体的には、線状部材２に発生すると想定される張力）を変形することによって吸収するのに適当なものが適宜選択される。   The material of the cushioning member 6B is not limited to a specific one, and is suitable for absorbing the assumed load (specifically, the tension assumed to be generated in the linear member 2) by deformation. The thing is suitably selected.

本実施形態では、緩衝部材６Ｂとして、複数の鋼管が外筒６Ａの内側に配設される。具体的には、図５に示すように、外筒６Ａ内に、同一寸法の七本の緩衝部材６Ｂが、相互の隙間及び外筒６Ａ内周面との隙間が殆ど無い態様で配設される。   In the present embodiment, a plurality of steel pipes are disposed inside the outer cylinder 6A as the buffer member 6B. Specifically, as shown in FIG. 5, seven buffer members 6B of the same size are disposed in the outer cylinder 6A in such a manner that there is almost no gap between them and the inner peripheral surface of the outer cylinder 6A. Ru.

なお、緩衝体６は、上述のように自身が横方向に変形する（言い換えると、横方向に押し潰される）ことにより線状部材２によって伝達される膜状部材１に作用する衝撃荷重を吸収し得るのであれば、支持部４の内側に完全に収容される態様に限られるものではなく、一部若しくは全部が露出していても良い。   In addition, the shock absorbing body 6 absorbs the impact load which acts on the film-like member 1 transmitted by the linear member 2 by being deformed in the lateral direction (in other words, squeezed in the lateral direction) by itself as described above. As long as it is possible, it is not limited to the aspect in which the support portion 4 is completely accommodated inside, and a part or all of the support portion 4 may be exposed.

抑え板７は、固定ボルト５と緩衝体６との間に配設され、支持部４の外径保持部材４ａ内における緩衝体６の移動を制限するためのものである。具体的には、緩衝体６が、外径保持部材４ａ内において、固定ボルト５の、当初配置される膜状部材１側の反対側から膜状部材１側へと移動しないようにするためのものである。   The pressure plate 7 is disposed between the fixing bolt 5 and the buffer 6 and is for restricting the movement of the buffer 6 in the outer diameter holding member 4 a of the support 4. Specifically, in order to prevent the buffer body 6 from moving to the side of the film-like member 1 from the side opposite to the film-like member 1 which is initially disposed, of the fixing bolt 5 in the outer diameter holding member 4a. It is a thing.

抑え板７の材質は、特定のものに限定されるものではなく、緩衝体６が変形する際に固定ボルト５と緩衝体６との間に介在して緩衝体６の移動を制限するときに大きく変形したり破断したりしない程度の強度を有するものが適宜選択される。本実施形態では、抑え板７として、鋼板が用いられる。   The material of the pressing plate 7 is not limited to a specific one, and when the buffer 6 is deformed, it is interposed between the fixing bolt 5 and the buffer 6 to limit the movement of the buffer 6. Those having a strength that does not significantly deform or break are appropriately selected. In the present embodiment, a steel plate is used as the pressing plate 7.

抑え板７は、当該抑え板７が配設されている支持部４を頂点として当該支持部４と両側の隣接する支持部４，４とを結んだときの角の二等分線と、抑え板７の面が直交する向き（言い換えると、角度）に配設されることが好ましい。   The pressure plate 7 has a bisector of a corner when the support portion 4 and the adjacent support portions 4 on both sides are connected with the support portion 4 on which the pressure plate 7 is disposed as a vertex. It is preferable that the plane of the plate 7 be disposed in an orthogonal direction (in other words, an angle).

本実施形態では、支持部４は平面視長方形の枠体３の四つの角部３Ａのそれぞれに設けられているので、或る支持部４を頂点として当該支持部４と両側の隣接する支持部４，４とを結んだときの角は９０度である。そこで、本実施形態では具体的には、この９０度をなす角の二等分線と、三本の固定ボルト５の横並びの方向（角度）が直交するように三本の固定ボルト５が配設されると共に、抑え板７の面が直交するように抑え板７が配設される。   In the present embodiment, since the support portion 4 is provided at each of the four corner portions 3A of the frame 3 having a rectangular shape in a plan view, one support portion 4 and the adjacent support portions on both sides with the support portion 4 at the top The angle between the point 4 and 4 is 90 degrees. Therefore, specifically, in the present embodiment, the three fixing bolts 5 are disposed such that the bisector of the angle forming the 90 degrees and the direction (angle) of the three horizontal fixing bolts 5 are orthogonal to each other. While being provided, the pressing plate 7 is disposed such that the surfaces of the pressing plate 7 are orthogonal to each other.

上述のように抑え板７の面の向きを調整することにより、或る支持部４から両側の隣接する支持部４，４それぞれに架け渡される線状部材２，２に発生する張力の合力の向きが抑え板７の面に直交することになり、或る支持部４が線状部材２によって変形する際に緩衝体６に作用する荷重を当該緩衝体６に偏りなく作用させることが可能になる。   By adjusting the direction of the surface of the pressing plate 7 as described above, the resultant tension of the linear members 2 and 2 which are bridged from the one supporting portion 4 to the adjacent supporting portions 4 on both sides respectively. The direction is orthogonal to the surface of the pressure plate 7, and it is possible to make the load acting on the buffer 6 act on the buffer 6 without deviation when the support 4 is deformed by the linear member 2. Become.

そして、支持部４全体としては、三本横並びの固定ボルト５の外側（即ち、膜状部材１側の反対側）に抑え板７が配設され、当該抑え板７の外側（即ち、膜状部材１及び固定ボルト５側の反対側）に緩衝体６が配設され、これらボルト５と抑え板７と緩衝体６とを囲むように外径保持部材４ａが配設される。   Then, a restraining plate 7 is disposed on the outer side (that is, the opposite side to the film-like member 1 side) of the three fixing bolts 5 side by side as the entire support portion 4. A shock absorber 6 is disposed on the opposite side of the member 1 and the fixing bolt 5 side, and an outer diameter holding member 4 a is disposed so as to surround the bolts 5, the pressing plate 7 and the shock absorber 6.

なお、本実施形態の抑え板７には、固定ボルト５側の面に、対向する一対の垂直板７ａ，７ａが設けられる。そして、これら垂直板７ａ，７ａが固定ボルト５の間に挿し入れられることにより、固定ボルト５に対する抑え板７の横移動が制限される。ただし、垂直板７ａが設けられることは本発明における抑え板７としての必須の構成ではなく、抑え板７が単なる板状の部材として形成されるようにしても良い。   In the pressure plate 7 of the present embodiment, a pair of opposing vertical plates 7a, 7a is provided on the surface on the fixing bolt 5 side. Then, by inserting the vertical plates 7 a and 7 a between the fixing bolts 5, the lateral movement of the pressing plate 7 with respect to the fixing bolts 5 is restricted. However, the provision of the vertical plate 7a is not an essential configuration as the pressure plate 7 in the present invention, and the pressure plate 7 may be formed as a simple plate-like member.

また、固定ボルト５が一本のみ配設される場合には、当初配設された方向（角度）から抑え板７が回転しないように、抑え板７が固定ボルト５に固定されることが好ましい。   When only one fixing bolt 5 is provided, the holding plate 7 is preferably fixed to the fixing bolt 5 so that the holding plate 7 does not rotate from the direction (angle) initially provided. .

なお、支持部４の内側に抑え板７を配設することは本発明において必須の構成ではない。すなわち、例えば本実施形態のように支持部４内に複数の固定ボルト５を配設し、これら複数の固定ボルト５によって外径保持部材４ａ内における緩衝体６の移動が制限される場合には、抑え板７を配設しないようにしても良い。   Note that arranging the pressing plate 7 inside the support portion 4 is not an essential configuration in the present invention. That is, for example, in the case where the plurality of fixing bolts 5 are disposed in the support portion 4 as in the present embodiment and the movement of the buffer 6 in the outer diameter holding member 4a is limited by the plurality of fixing bolts 5 , The pressing plate 7 may not be disposed.

ただし、抑え板７を配設することにより、緩衝体６が変形する際に固定ボルト５に作用する荷重が複数の固定ボルト５に分散されるので、特定の固定ボルトのみに荷重が集中して固定ボルトが破損してしまうことが防止される。   However, by arranging the pressing plate 7, the load acting on the fixing bolt 5 when the buffer 6 is deformed is dispersed to the plurality of fixing bolts 5, so the load is concentrated on only a specific fixing bolt. Damage to the fixing bolt is prevented.

続いて、主に図１及び図６を参照しながら、支持部４による線状部材２の支持について説明する。ここで、説明の便宜のため、本実施形態の平面視長方形の枠体３の四つの角部３Ａのそれぞれに一つずつ設けられた各支持部４について、或る角部３Ａの支持部４（図６では左上の支持部４）から時計回りに順に４Ａ，４Ｂ，４Ｃ，４Ｄとする。また、膜状部材１の各辺について、支持部４Ａと４Ｂとの間の一辺から時計回りに順に１Ａ，１Ｂ，１Ｃ，１Ｄとする。   Then, support of the linear member 2 by the support part 4 is demonstrated, mainly referring FIG.1 and FIG.6. Here, for the convenience of description, for each of the support portions 4 provided one by one at each of the four corner portions 3A of the frame 3 in a plan view rectangular shape of the present embodiment, the support portion 4 of a certain corner portion 3A 6A, 4B, 4C, and 4D in order clockwise from the upper left support 4 in FIG. Moreover, about each side of the film-like member 1, it is set as 1A, 1B, 1C, 1D clockwise sequentially from the one side between the support parts 4A and 4B.

まず、膜状部材１の辺１Ａに沿う枠体３の一辺に第一の取付具であるシャックル１１によって一端が固定された線状部材２が、膜状部材１の辺１Ａに沿って支持部４Ａに向けて配設され、膜状部材１側の反対側から膜状部材１側へと支持部４Ａに巻き回され（外径保持部材４ａ外周との接触は２分の１周）、膜状部材１側から支持部４Ａを離れて膜状部材１の辺１Ａの縁部を並縫いするように膜状部材１(金網)の目に通されて支持部４Ｂに向けて配設され、膜状部材１から抜けて膜状部材１(辺１Ａ)側から膜状部材１(辺１Ｂ)側へと支持部４Ｂに巻き回され（外径保持部材４ａ外周との接触は４分の３周）、膜状部材１側から支持部４Ｂを離れて膜状部材１の辺１Ｂの縁部を並縫いするように膜状部材１(金網)の目に通されて支持部４Ｃに向けて配設され、膜状部材１から抜けて膜状部材１側から膜状部材１側の反対側へと支持部４Ｃに巻き回され（外径保持部材４ａ外周との接触は２分の１周）、膜状部材１側の反対側から支持部４Ｃを離れて膜状部材１の辺１Ｂに沿って配設され、膜状部材１の辺１Ｂに沿う枠体３の一辺に第二の取付具であるパイプ式ターンバックル１２によって他端が固定される。   First, the linear member 2 whose one end is fixed to one side of the frame 3 along the side 1A of the film-like member 1 by the shackle 11 which is the first fixture is a support portion along the side 1A of the film-like member 1 4A, and is wound around the support 4A from the opposite side to the membrane-like member 1 to the membrane-like member 1 side (a half turn of the contact with the outer periphery of the outer diameter holding member 4a), The eye of the membrane member 1 (wire mesh) is disposed toward the support portion 4B so as to sew the edge portions of the side 1A of the membrane member 1 by separating the support portion 4A from the rod-like member 1 side; The support 4B is removed from the film-like member 1 and wound around the support 4B from the film-like member 1 (side 1A) side to the film-like member 1 (side 1B) side (the contact with the outer diameter holding member 4a is 3/4 Circumference), the supporting member 4B is separated from the side of the film-like member 1 so that the edges of the side 1B of the film-like member 1 are stitched in parallel and the eye of the film-like member 1 (wire mesh) is passed It is disposed, and is pulled out of the film-like member 1 and wound around the support portion 4C from the film-like member 1 side to the opposite side of the film-like member 1 side (a half turn around the outer diameter holding member 4a) ), The supporting portion 4C is separated from the opposite side to the film-like member 1 side and disposed along the side 1B of the film-like member 1, and the second mounting is performed on one side of the frame 3 along the side 1B of the film-like member 1 The other end is fixed by a pipe type turnbuckle 12 which is a tool.

さらに、上述の支持の仕組みを膜状部材１の重心を中心として１８０度回転させたもう一つの支持の仕組みが組み合わされる。すなわち、膜状部材１の辺１Ｃに沿う枠体３の一辺に第一の取付具であるシャックル１１によって一端が固定された線状部材２が、膜状部材１の辺１Ｃに沿って支持部４Ｃに向けて配設され、膜状部材１側の反対側から膜状部材１側へと支持部４Ｃに巻き回され（外径保持部材４ａ外周との接触は２分の１周）、膜状部材１側から支持部４Ｃを離れて膜状部材１の辺１Ｃの縁部を並縫いするように膜状部材１(金網)の目に通されて支持部４Ｄに向けて配設され、膜状部材１から抜けて膜状部材１(辺１Ｃ)側から膜状部材１(辺１Ｄ)側へと支持部４Ｄに巻き回され（外径保持部材４ａ外周との接触は４分の３周）、膜状部材１側から支持部４Ｄを離れて膜状部材１の辺１Ｄの縁部を並縫いするように膜状部材１(金網)の目に通されて支持部４Ａに向けて配設され、膜状部材１から抜けて膜状部材１側から膜状部材１側の反対側へと支持部４Ａに巻き回され（外径保持部材４ａ外周との接触は２分の１周）、膜状部材１側の反対側から支持部４Ａを離れて膜状部材１の辺１Ｄに沿って配設され、膜状部材１の辺１Ｄに沿う枠体３の一辺に第二の取付具であるパイプ式ターンバックル１２によって他端が固定される。   Furthermore, another support mechanism in which the above-described support mechanism is rotated 180 degrees around the center of gravity of the membrane member 1 is combined. That is, the linear member 2 whose one end is fixed to one side of the frame 3 along the side 1C of the film-like member 1 by the shackle 11 which is the first fixture is a support portion along the side 1C of the film-like member 1 4C, and is wound around the support portion 4C from the opposite side to the membrane-like member 1 to the membrane-like member 1 side (a half turn of the contact with the outer diameter holding member 4a) The support member 4C is separated from the side member 1 side and the edges of the side 1C of the film member 1 are stitched in parallel to the eyes of the film member 1 (wire mesh) and disposed toward the support member 4D; The support 4D is removed from the film-like member 1 and wound around the support 4D from the film-like member 1 (side 1C) side to the film-like member 1 (side 1D) side (the contact with the outer periphery of the outer diameter holding member 4a is 3/4 Circumference), the supporting member 4D is separated from the film-like member 1 side, and the eye of the film-like member 1 (wire mesh) is passed through the supporting member 4A so as to sew the edge of the side 1D of the film-like member 1 And is wound around the support 4A from the film-like member 1 side to the opposite side of the film-like member 1 (the contact with the outer periphery of the outer diameter holding member 4a is two minutes 1), the supporting portion 4A is separated from the opposite side to the film-like member 1 side and disposed along the side 1D of the film-like member 1, and one side of the frame 3 along the side 1D of the film-like member 1 The other end is fixed by a pipe type turn buckle 12 which is a mounting tool of the present invention.

上述の二つの支持の仕組みの組み合わせにより、二本の線状部材２が支持部４を介して枠体３に支持され、延いては、これら二本の線状部材２により各辺１Ａ，１Ｂ，１Ｃ，１Ｄ（即ち、膜状部材１の周縁部の全周）が支持されることによって膜状部材１が支持部４を介して枠体３に支持される。   The two linear members 2 are supported by the frame 3 via the support portion 4 by the combination of the two support mechanisms described above, and thus, the two linear members 2 each side 1A, 1B , 1C, 1D (i.e., the entire periphery of the peripheral portion of the film member 1), the film member 1 is supported by the frame 3 via the support 4.

また、支持部４による線状部材２の支持の態様を図１や図６に示すようなものにすることにより、枠体３の各辺を構成するＨ形鋼のウェブの膜状部材１側に膜状部材１を支持するための線状部材２を配設すると共に膜状部材１側の反対側に第一の取付具としてのシャックル１１，１１及び第二の取付具としてのパイプ式ターンバックル１２，１２を配設し且つ線状部材２を支持部４に巻き回す構成が実現される。   In addition, by making the aspect of the support of the linear member 2 by the support portion 4 as shown in FIG. 1 and FIG. 6, the film member 1 side of the H-shaped steel web constituting each side of the frame 3 And a linear member 2 for supporting the membrane 1 and shackles 11 and 11 as a first fixture and a pipe type turn as a second fixture on the opposite side of the membrane 1 side. A configuration in which the buckles 12, 12 are disposed and the linear member 2 is wound around the support portion 4 is realized.

上述のように支持部４を緩衝体６を有する構造にすると共に当該支持部４に支持される線状部材２によって膜状部材１を支持することにより、膜状部材１に飛来物などが衝突したときの衝撃荷重によって破壊されることなく、例えば構造物全体若しくは一部や種々の設備などの防護設備として確実な防護機能を発揮することが可能になる。   As described above, the support 4 is configured to have the buffer 6, and the film-like member 1 is supported by the linear member 2 supported by the support 4 so that flying objects and the like collide with the film-like member 1. For example, it is possible to exhibit a reliable protection function as a protection facility such as the whole or a part of a structure or various facilities without being destroyed by an impact load at the same time.

具体的には、膜状部材１に飛来物などが衝突すると、衝撃荷重が膜状部材１から線状部材２へと伝達され、各支持部４の間の線状部材２のそれぞれに張力が発生する。そして、膜状部材１から線状部材２へと伝達された衝撃荷重が、枠体３の角部３Ａに、具体的には角部３Ａに設けられた支持部４に集中する。そして、線状部材２が巻き回されている支持部４には、支持部４を横方向に押し潰そうとする荷重が線状部材２によって作用する。   Specifically, when a flying object or the like collides with the film-like member 1, an impact load is transmitted from the film-like member 1 to the linear member 2 and tension is applied to each of the linear members 2 between the support portions 4. Occur. Then, the impact load transmitted from the film-like member 1 to the linear member 2 is concentrated on the corner 3A of the frame 3, specifically on the support 4 provided on the corner 3A. And the load which tries to squeeze the support part 4 in the horizontal direction acts on the support part 4 in which the linear member 2 is wound by the linear member 2.

このとき、上述のような線状部材２の配設及び線状部材２の支持部４への巻き回しの仕方により、膜状部材１側の反対側から膜状部材１側に向けて支持部４を横方向に押し潰そうとする荷重、具体的には支持部４の両側の線状部材２，２に発生する張力の合力が支持部４に作用する。   At this time, due to the arrangement of the linear member 2 and the method of winding the linear member 2 around the support portion 4 as described above, the support portion is directed from the opposite side to the membrane member 1 to the membrane member 1 side. The combined force of the load to squeeze 4 in a lateral direction, specifically the tension generated at the linear members 2 and 2 on both sides of the support 4 acts on the support 4.

そして、固定ボルト５及び抑え板７の外側（即ち、膜状部材１側の反対側）に緩衝体６が配設され、外径保持部材４ａと共に緩衝体６を構成する外筒６Ａ及び緩衝部材６Ｂが圧縮変形することにより、膜状部材１に作用する飛来物などの衝撃荷重が吸収される。   Then, the shock absorber 6 is disposed on the outer side of the fixing bolt 5 and the pressure plate 7 (that is, the opposite side to the membrane member 1 side), and the outer cylinder 6A and the shock absorbing member that constitute the shock absorber 6 together with the outer diameter holding member 4a. By compressive deformation of 6 B, an impact load such as an alien substance acting on the film-like member 1 is absorbed.

以上のように構成された本発明の膜状部材の支持方法及び膜状部材の支持構造によれば、膜状部材１の耐衝撃性能を十分に発揮させることができ、尚且つ、膜状部材１が装着される枠体３の変形を抑制すると共に膜状部材１を支持する線状部材２に発生する張力の急激な増加を緩和して線状部材２の脆性的な破断を防止することができる。   According to the film-like member supporting method and the film-like member supporting structure of the present invention configured as described above, the impact resistance performance of the film-like member 1 can be sufficiently exhibited, and the film-like member While suppressing the deformation of the frame 3 to which 1 is attached, and also suppressing the rapid increase of the tension generated in the linear member 2 supporting the membrane member 1, the brittle fracture of the linear member 2 is prevented. Can.

なお、上述の形態は本発明を実施する際の好適な形態の一例ではあるものの本発明の実施の形態が上述の形態に限定されるものではなく、本発明の要旨を逸脱しない範囲において本発明は種々変形実施が可能である。例えば、上述の実施形態では全ての支持部４が緩衝体６を有するようにしているが、全ての支持部４が緩衝体６を有することは本発明において必須の構成ではない。すなわち、一部の支持部４が緩衝体６を有しないようにしても良いし、全ての支持部４が緩衝体６を有しないようにしても良い（なお、支持部４が緩衝体６を有しない場合には抑え板７は不要である）。このとき、緩衝体６を有しない支持部４は、例えば上述の実施形態のように外径保持部材４ａが円筒状に形成されて自身が変形することを前提にした形態でも良いし、自身が変形することを前提にしない形態でも良い。そして、支持部４が緩衝体６を有しないものの自身が変形することを前提にした形態の場合には、外径保持部材４ａの材質と板厚との組み合わせを適当に調整することにより、外径保持部材４ａが圧縮変形することによって膜状部材１に作用する飛来物などの衝撃荷重が吸収される。一方、支持部４が緩衝体６を有さず且つ自身が変形することを前提にしない形態であっても、本発明者が実施した、全周をワイヤロープで支持した全周可動型試験体を用いての重錘等を衝突させる自由落下試験の結果では、金網が過度に拘束されておらずワイヤロープのたわみによって自由に変形することができるために金網の所定の耐衝撃性能が発揮されて重錘の貫通が防止されると共にワイヤロープの破断が防止されることが明らかになっている。すなわち、全ての支持部４が緩衝体６を有しない場合でも、膜状部材１の全周を線状部材２で支持する構成であれば一定の効果は発揮される。なお、この場合の支持部４は、線状部材２を枠体３の形状に合わせて方向転換させる働きをし、枠体３の適当な位置に適宜設けられる。   Although the above-described embodiment is an example of the preferred embodiment for carrying out the present invention, the embodiment of the present invention is not limited to the above-described embodiment, and the present invention is not limited to the scope of the present invention. Various modifications are possible. For example, although all the supports 4 have the buffer 6 in the above-mentioned embodiment, it is not an essential configuration in the present invention that all the supports 4 have the buffer 6. That is, some of the supports 4 may not have the buffer 6, or all the supports 4 may not have the buffer 6 (note that the support 4 does not have the buffer 6). When it does not have, the pressing plate 7 is unnecessary). At this time, the support portion 4 not having the buffer 6 may have a form on the premise that the outer diameter holding member 4a is formed in a cylindrical shape and itself deforms as in the above-mentioned embodiment, for example. It may be a form that is not premised to be deformed. And, in the case where the supporting portion 4 does not have the shock absorber 6, but in a form based on the premise that the supporting portion 4 itself is deformed, the outside is obtained by appropriately adjusting the combination of the material and thickness of the outer diameter holding member 4a. As the diameter holding member 4a is compressed and deformed, an impact load such as a flying object acting on the film-like member 1 is absorbed. On the other hand, even if the supporting portion 4 does not have the buffer body 6 and does not assume that the supporting member 4 deforms itself, the present inventor carried out an all-around movable type test body supported by the wire rope all around In the result of the free-falling test in which the weight and the like are made to collide with each other, the predetermined impact resistance performance of the wire mesh is exhibited because the wire mesh is not excessively restrained and can be freely deformed by the deflection of the wire rope. It has been found that penetration of the weight is prevented and breakage of the wire rope is prevented. That is, even when all the support portions 4 do not have the buffer 6, a certain effect can be exhibited as long as the entire periphery of the film-like member 1 is supported by the linear member 2. The support portion 4 in this case functions to change the direction of the linear member 2 in accordance with the shape of the frame 3, and is appropriately provided at an appropriate position of the frame 3.

また、上述の実施形態では二本の線状部材２が用いられて一枚の膜状部材１が枠体３に支持されるようにしているが、膜状部材１の枚数は一枚に限られるものではなく、各部材の裏面と表面とが上下方向において対向して配置された二枚以上の膜状部材１が一つの枠体３に支持されるようにしても良い。なお、上下に対向して配置された二枚の膜状部材１が支持される場合には、例えば図７に示すように上述の形態における支持の仕組みを裏返して重ね合わせるようにすることが考えられる。図７に示すようにすることにより、各支持部４への線状部材２の巻き回しの偏りをなくして衝突荷重を適切に分散させることができると共に、第一の取付具（シャックル１１）及び第二の取付具（パイプ式ターンバックル１２）の枠体３への収まり・取り付けを適切なものにすることができる。なお、図７では、ワイヤグリップ１０の図示を省略している。   In the above embodiment, two linear members 2 are used to support one sheet of film-like member 1 by frame 3, but the number of film-like members 1 is limited to one. Instead, two or more sheets of film-like members 1 may be supported by one frame 3 in which the back surface and the front surface of each member are opposed in the vertical direction. In addition, when the two film-like members 1 arrange | positioned facing the upper and lower sides are supported, it is possible to turn over and overlap the structure of the support in the above-mentioned form, as shown, for example in FIG. Be By making it as shown in FIG. 7, it is possible to eliminate the bias of the winding of the linear member 2 to each support portion 4 and to disperse the collision load appropriately, and to obtain the first attachment (shackle 11) and The fitting / attachment of the second attachment (pipe type turnbuckle 12) to the frame 3 can be made appropriate. In addition, illustration of the wire grip 10 is abbreviate | omitted in FIG.

また、一枚以上の膜状部材１を支持する枠体３が複数段積み重ねられ、これによって膜状部材１が複数枚重ねられて配設されるようにしても勿論良い。   In addition, it is a matter of course that a plurality of frame members 3 supporting one or more film members 1 may be stacked, and a plurality of the film members 1 may be stacked.

また、上述の実施形態では二本の線状部材２によって膜状部材１の各辺１Ａ，１Ｂ，１Ｃ，１Ｄが支持される、即ち、膜状部材１の周縁部が全周に亙って支持されるようにしているが、膜状部材１の全周縁部の支持の態様はこれに限られるものではない。具体的には例えば、図８に示すように一本の線状部材２によって膜状部材１の周縁部が全周に亙って支持されるようにしても良いし、図９に示すように四本の線状部材２によって膜状部材１の周縁部が全周に亙って支持されるようにしても良い。   Moreover, in the above-mentioned embodiment, each side 1A, 1B, 1C, 1D of the film-like member 1 is supported by the two linear members 2, that is, the peripheral part of the film-like member 1 covers the whole circumference. Although it is made to support, the aspect of support of the whole peripheral part of the film-like member 1 is not restricted to this. Specifically, for example, as shown in FIG. 8, the peripheral portion of the film-like member 1 may be supported over the entire circumference by one linear member 2, or as shown in FIG. The peripheral portion of the film-like member 1 may be supported by the four linear members 2 along the entire circumference.

また、上述の実施形態では、図１及び図６を用いて説明したように、支持部４Ａ及び支持部４Ｃに対しては外径保持部材４ａ外周との接触が２分の１周になるように線状部材２が巻き回され、また、支持部４Ｂ及び支持部４Ｄに対しては外径保持部材４ａ外周との接触が４分の３周になるように線状部材２が巻き回されるようにしているが、支持部４への線状部材２の巻き回され方は上述の実施形態における態様に限られるものではない。具体的には例えば、支持部４の膜状部材１側の反対側に単に配設される（外径保持部材４ａ外周との接触は４分の１周）ようにしても良い。   Further, in the above embodiment, as described with reference to FIGS. 1 and 6, the contact with the outer diameter holding member 4a with respect to the support portion 4A and the support portion 4C is a half turn The linear member 2 is wound on the support 4B and the support 4D so that the contact with the outer periphery of the outer diameter holding member 4a is three quarters of the circumference. However, the manner in which the linear member 2 is wound around the support portion 4 is not limited to the mode in the above-described embodiment. Specifically, for example, it may be simply disposed on the opposite side of the film-like member 1 side of the support 4 (a quarter turn of the contact with the outer periphery of the outer diameter holding member 4a).

また、上述の実施形態では第一の取付具としてのシャックル１１，１１と第二の取付具としてのパイプ式ターンバックル１２，１２とが用いられて線状部材２が枠体３に取り付けられるようにしているが、線状部材２の枠体３への取り付けの態様はこれに限られるものではなく、線状部材２の少なくとも一端が引張力に対して引張りの向きに変形しつつ抵抗力を発揮する（言い換えると、引張りの向きに変形しつつ抵抗を発生させて引張のエネルギーを変換・吸収する）機構によって（言い換えると、機構を介在させて）枠体３に取り付けられるようにしても良い。そして、この場合には特に、支持部４が緩衝体６を有しないようにしても良い。すなわち、引張力に対して引張りの向きに変形しつつ抵抗力を発揮する機構を用いることにより、線状部材に発生する張力の急激な増加を緩和することができる。引張力に対して引張りの向きに変形しつつ抵抗力を発揮する機構としては、具体的には例えば引張コイルばねやオイルダンパなどが考えられる。   In the above embodiment, the shackles 11 and 11 as the first attachment and the pipe type turn buckles 12 and 12 as the second attachment are used to attach the linear member 2 to the frame 3 However, the manner of attachment of the linear member 2 to the frame 3 is not limited to this, and at least one end of the linear member 2 is resistant to tension while being deformed in the direction of tension. It may be made to be attached to the frame 3 by a mechanism (in other words, intervening mechanism) which exerts (in other words, generates resistance while transforming in the direction of tension to convert / absorb tension energy) . And, in this case, in particular, the support 4 may not have the buffer 6. That is, a rapid increase in tension generated in the linear member can be alleviated by using a mechanism that exerts resistance while deforming in the direction of tension with respect to tension. Specifically, for example, a tension coil spring or an oil damper may be considered as a mechanism that exerts a resistance while being deformed in the direction of tension with respect to the tension.

また、上述の実施形態では支持部４内の緩衝体６を外筒６Ａと当該外筒６Ａ内の緩衝部材６Ｂとで構成するようにしているが、緩衝体６の構成は、自身が横方向に変形する（言い換えると、横方向に押し潰される）ことによって衝撃荷重を吸収し得るものであれば、上述の実施形態におけるものには限られない。具体的には例えば、図１０(Ａ)に示すように外筒６Ａを設けずに複数の管状の緩衝部材６Ｂを配設するようにしたり、同図(Ｂ)に示すように複数の管状部材６Ｃを同心円状に複層になるように配設するようにしたりしても良い。なお、これらの場合の緩衝部材６Ｂや管状部材６Ｃとしては鋼管が用いられることが考えられる。ただ、上述の実施形態における緩衝体６の構成は、１）緩衝部材６Ｂの変形を許容する空隙が確保される、２）緩衝部材６Ｂが圧縮変形すると剛性が低下するので作用する荷重が低下しても変形が進行することによって緩衝部材６Ｂがエネルギー吸収する時間が長時間化する、３）実際の設置（組立て）の際の緩衝部材６Ｂの初期配置位置の乱れが低減されると共に設置後及び変形時の緩衝部材６Ｂのばらつきが制限されることによって緩衝効果の品質が確保されるなどの点において好ましい。   In the above-described embodiment, the buffer 6 in the support portion 4 is configured by the outer cylinder 6A and the buffer member 6B in the outer cylinder 6A. The invention is not limited to the above-described embodiment as long as the shock load can be absorbed by deformation (in other words, crushing in the lateral direction). Specifically, for example, as shown in FIG. 10 (A), a plurality of tubular buffer members 6B may be disposed without providing the outer cylinder 6A, or as shown in FIG. 10 (B), a plurality of tubular members may be provided. The 6C may be disposed concentrically in multiple layers. A steel pipe may be used as the buffer member 6B or the tubular member 6C in these cases. However, the configuration of the shock absorber 6 in the above-described embodiment 1) can secure a gap allowing deformation of the shock absorbing member 6B, and 2) the rigidity decreases when the shock absorbing member 6B is compressed and deformed, so that the acting load decreases. Even if the deformation progresses, the time for the energy absorption of the shock absorbing member 6B is prolonged, 3) the disturbance of the initial arrangement position of the shock absorbing member 6B at the time of actual installation (assembly) is reduced and It is preferable in that the quality of the buffer effect is secured by limiting the variation of the buffer member 6B at the time of deformation.

また、上述の実施形態では支持部４内の緩衝体６を管状部材（具体的には鋼管）によって構成するようにしているが、緩衝体６は、自身が横方向に変形する（言い換えると、横方向に押し潰される）ことによって衝撃荷重を吸収し得るものであれば、上述の実施形態におけるものには限られない。具体的には例えば、水平断面においてハニカム構造を有する部材を用いるようにしたり、圧縮力に対して圧縮の向きに変形しつつ抵抗力を発揮する（言い換えると、圧縮の向きに変形しつつ抵抗を発生させて圧縮のエネルギーを変換・吸収する）機構を用いるようにしたりしても良い。圧縮力に対して圧縮の向きに変形しつつ抵抗力を発揮する機構としては、具体的には例えば圧縮コイルばねやオイルダンパなどが考えられる。   Moreover, although the buffer 6 in the support part 4 is comprised by the tubular member (specifically steel pipe) in the above-mentioned embodiment, the buffer 6 deform | transforms itself in a horizontal direction (in other words, The present invention is not limited to the above embodiment as long as the impact load can be absorbed by being crushed in the lateral direction. Specifically, for example, a member having a honeycomb structure in a horizontal cross section is used, or resistance is exerted while being deformed in the direction of compression with respect to a compressive force (in other words, resistance is generated while being deformed in the direction of compression). It is also possible to use a mechanism that generates and converts and absorbs the energy of compression. Specifically, for example, a compression coil spring, an oil damper, and the like can be considered as a mechanism that exerts resistance while deforming in the direction of compression with respect to compression.

また、本発明の膜状部材の支持方法及び膜状部材の支持構造は、膜状部材１の上面側（言い換えると、表面側）や下面側（言い換えると、裏面側）に、補助膜状部材が更に配設されるようにしても良い。具体的には、例えば図１乃至図６に示す形態のように一枚の膜状部材１が枠体３に支持される場合に、補助膜状部材１３が、膜状部材１の上面側に配設されたり（図１１(Ａ)参照）、膜状部材１の下面側に配設されたり（図１１(Ｂ)参照）、膜状部材１の上面側及び下面側のそれぞれに配設されたり（図１１(Ｃ)参照）するようにしても良い。なお、二枚以上の補助膜状部材１３が重ねられて配設されるようにしても良い。   In the method of supporting a membrane-like member and the support structure of a membrane-like member according to the present invention, an auxiliary membrane-like member is provided on the top side (in other words, the front side) or the bottom side (in other words, the back side) of the membrane member 1 May be further disposed. Specifically, for example, when one sheet of film-like member 1 is supported by frame 3 as shown in FIGS. 1 to 6, auxiliary film-like member 13 is located on the upper surface side of film-like member 1. It is disposed (see FIG. 11A), disposed on the lower surface side of the film-like member 1 (see FIG. 11B), or disposed on the upper surface side and the lower surface side of the film-like member 1 respectively. Alternatively (see FIG. 11C). In addition, two or more auxiliary film-like members 13 may be stacked and disposed.

ここで、図１１は膜状部材１と補助膜状部材１３との上下方向における配置関係の例を説明するための概念図であり、各々の構造や寸法（相互の配置間隔を含む）は厳密なものではなく、また、膜状部材１及び補助膜状部材１３以外の構成の図示は省略している。さらに、図１１において膜状部材１を一点鎖線で図示しているのは、単に補助膜状部材１３との区別の分かり易さを考慮してのものであり、その他の意味はない。   Here, FIG. 11 is a conceptual diagram for explaining an example of the arrangement relationship between the film-like member 1 and the auxiliary film-like member 13 in the vertical direction, and their respective structures and dimensions (including mutual arrangement intervals) are strict. The components other than the film-like member 1 and the auxiliary film-like member 13 are not shown. Furthermore, the film-like member 1 is illustrated by a one-dotted chain line in FIG. 11 in consideration of the easy-to-understand distinction from the auxiliary film-like member 13 simply and has no other meaning.

また、例えば図７に示す形態のように各部材の裏面と表面とが上下方向において対向して配置された二枚の膜状部材１が枠体３に支持される場合には、補助膜状部材１３は、上側の膜状部材１upの上面側と下面側並びに下側の膜状部材１loの上面側と下面側とのうちのいずれの位置に配設されるようにしても良く、また、一枚若しくは複数枚配設されるようにしても良い。具体的には例えば、補助膜状部材１３が、上側の膜状部材１upの上面側に配設されたり（図１２(Ａ)参照）、下側の膜状部材１loの上面側に配設されたり（図１２(Ｂ)参照）、下側の膜状部材１loの下面側に配設されたり（図１２(Ｃ)参照）、或いは、上側の膜状部材１upの上面側及び下側の膜状部材１loの上面側のそれぞれに配設されたり（図１２(Ｄ)参照）、下側の膜状部材１loの上面側及び下側の膜状部材１loの下面側のそれぞれに配設されたり、上側の膜状部材１upの上面側及び下側の膜状部材１loの下面側のそれぞれに配設されたり、さらに、上側の膜状部材１upの上面側，下側の膜状部材１loの上面側，及び下側の膜状部材１loの下面側のそれぞれに配設されたりするようにしても良い。なお、二枚以上の補助膜状部材１３が重ねられて配設されるようにしても良い。 In addition, for example, when the two film members 1 disposed so as to face each other in the vertical direction, the back surface and the front surface of each member are supported by the frame 3 as shown in FIG. The member 13 may be disposed on any of the upper surface side and the lower surface side of the upper film-like member 1 up and the upper surface side and the lower surface side of the lower film-like member 1 lo , Also, one or more sheets may be provided. Specifically, for example, the auxiliary film-like member 13 is disposed on the upper surface side of the upper film-like member 1 up (see FIG. 12A) or is disposed on the upper surface side of the lower film-like member 1 lo. (See FIG. 12B), or disposed on the lower surface side of the lower membrane member 1 lo (see FIG. 12C), or the upper surface side of the upper membrane member 1 up and It is disposed on the upper surface side of the lower film member 1 lo (see FIG. 12D ), and the upper surface side of the lower film member 1 lo and the lower surface side of the lower film member 1 lo Or the upper surface side of the upper film member 1 up and the lower surface side of the lower film member 1 lo , and further, the upper surface side of the upper film member 1 up it may be or is disposed in each of the lower surface side of the film member 1 lo of top side, and the lower film member 1 lo lower. In addition, two or more auxiliary film-like members 13 may be stacked and disposed.

ここで、図１２は膜状部材１と補助膜状部材１３との上下方向における配置関係の例を説明するための概念図であり、各々の構造や寸法（相互の配置間隔を含む）は厳密なものではなく、また、膜状部材１及び補助膜状部材１３以外の構成の図示は省略している。さらに、図１２において膜状部材１を一点鎖線で図示しているのは、単に補助膜状部材１３との区別の分かり易さを考慮してのものであり、その他の意味はない。   Here, FIG. 12 is a conceptual diagram for explaining an example of the arrangement relationship between the film-like member 1 and the auxiliary film-like member 13 in the vertical direction, and their respective structures and dimensions (including mutual arrangement intervals) are strict. The components other than the film-like member 1 and the auxiliary film-like member 13 are not shown. Furthermore, the film-like member 1 is illustrated by a dashed dotted line in FIG. 12 in consideration of the ease of understanding of the auxiliary film-like member 13 and has no other meaning.

補助膜状部材１３としては、膜状部材１（膜状部材１up，１loを含む）と、同じ態様，材質のものが用いられても良いし、異なる態様，材質のものが用いられても良い。例えば、ステンレス鋼や鉄などの金属材料製の金網，種々の合成樹脂繊維製や天然繊維製の繊維網などが用いられ得る。 As the auxiliary film-like member 13, one having the same aspect and material as the film-like member 1 (including the film-like members 1 up and 1 lo ) may be used, or one having a different aspect and material is used. Also good. For example, a wire mesh made of a metal material such as stainless steel or iron, a fiber mesh made of various synthetic resin fibers or natural fibers, etc. may be used.

更に具体的には例えば、上述の実施形態における膜状部材１の例と同様に、素線径が大凡３．５〜４．５ ｍｍ 程度で素線強度が大凡１０００ Ｎ／ｍｍ２ 程度以上（なお、大凡１２００ Ｎ／ｍｍ２ 程度以上が好ましく、大凡１４００ Ｎ／ｍｍ２ 程度以上がより一層好ましい）の亜鉛メッキ鋼線が、開口寸法が大凡３５〜５５ ｍｍ 程度として三次元的に編み込まれた菱形金網が用いられても良い。 More specifically, for example, as in the example of the film-like member 1 in the above-described embodiment, the wire diameter is about 3.5 to 4.5 mm and the wire strength is about 1000 N / mm 2 or more (about A galvanized steel wire of about 1200 N / mm 2 or more is preferable, and about 1400 N / mm 2 or more is still more preferable, is three-dimensionally knitted with an opening size of about 35 to 55 mm. A rhombus wire mesh may be used.

補助膜状部材１３は、平面視において膜状部材１の全体若しくは概ね全体を覆う形状及び大きさに形成され、すなわち、平面視において膜状部材１と同じ若しくは概ね同じ形状及び大きさに、或いは、平面視において膜状部材１よりも大きく形成される。   The auxiliary film-like member 13 is formed in a shape and size covering the whole or substantially the whole of the film-like member 1 in a plan view, that is, in the same or substantially the same shape and size as the film-like member 1 in a plan view It is formed larger than the film-like member 1 in a plan view.

補助膜状部材１３は、膜状部材１の上面側や下面側に配設された状態で、補助膜状部材１３の周縁部或いは当該周縁部の周辺の部分（言い換えると、周縁部よりもやや内側の部分）において、膜状部材１の周縁部を支持している線状部材２に取付部材１４によって取り付けられる。   The auxiliary film-like member 13 is disposed on the upper surface side or the lower surface side of the film-like member 1, and the peripheral portion of the auxiliary film-like member 13 or a portion around the peripheral portion (in other words, slightly more than the peripheral portion) In the inner part), the mounting member 14 is attached to the linear member 2 supporting the periphery of the membrane member 1.

取付部材１４は、飛来物などの衝突による衝撃荷重が加えられたときに外れてしまわない程度の強固さを発揮して補助膜状部材１３を線状部材２に取り付けるものであれば、どのようなものであっても構わない。   The mounting member 14 may be of any type as long as the auxiliary film-like member 13 is attached to the linear member 2 by exerting a sufficient strength not to be detached when an impact load due to a collision such as a flying object is applied. It does not matter.

取付部材１４としては、例えば、螺旋状に巻かれたコイル（結合コイルとも呼ばれる）や結束・結合リングや結束具などが用いられ得る。   As the attachment member 14, for example, a coil wound in a spiral shape (also referred to as a coupling coil), a binding / coupling ring, a binding tool, or the like may be used.

例えば、膜状部材１が金網であると共に線状部材２がロープであって膜状部材１の各辺の周縁部を並縫いするように線状部材２が金網の目に通されている場合で、補助膜状部材１３も金網であり且つ取付部材１４として螺旋状のコイルが用いられる場合には、具体的には例えば図１３に示すように、螺旋状のコイル１４の一端１４ａが線状部材２の内側位置（符号１ｅの位置）において膜状部材１の網目に挿し込まれたうえで螺旋状のコイル１４が軸回転することによって線状部材２の周面外側が螺旋状のコイル１４に囲まれるように（言い換えると、螺旋状のコイル１４の中空の軸部に線状部材２が取り込まれるように）螺旋状のコイル１４が金網の目を縫いながら進む際に、膜状部材１の上面側に配設された補助膜状部材１３を一緒に刺し綴る、言い換えると巻き込むことにより、補助膜状部材１３が螺旋状のコイル１４によって線状部材２に取り付けられる。なお、図１３では膜状部材１の上面側に補助膜状部材１３が配設される場合の例を示しているが、膜状部材１の下面側に補助膜状部材１３が配設される場合も、また、膜状部材１の上面側及び下面側のそれぞれに補助膜状部材１３が配設される場合も同様の取り付け方が可能である。   For example, when the membrane-like member 1 is a wire mesh and the linear members 2 are ropes, the wire-like members 2 are passed through the wire mesh so that the peripheral portions of each side of the membrane-like member 1 are sewn together. In the case where the auxiliary film-like member 13 is also a wire mesh and a spiral coil is used as the attachment member 14, specifically, for example, as shown in FIG. 13, one end 14a of the spiral coil 14 is linear. The spiral coil 14 is inserted into the mesh of the membrane member 1 at the inner position (position 1e) of the member 2 and then the helical coil 14 is pivoted to turn the coil 14 on the outer circumferential surface of the linear member 2 (In other words, the linear member 2 is taken into the hollow shaft portion of the helical coil 14) as the spiral coil 14 advances while sewing the mesh of the wire mesh. Of the auxiliary film-like member 13 disposed on the upper surface side of the Spelling, by involving in other words, the auxiliary film-like member 13 is attached to the linear member 2 by the helical coil 14. In addition, although the example in case the auxiliary film-like member 13 is arrange | positioned by the upper surface side of the film-like member 1 is shown in FIG. 13, the auxiliary film-like member 13 is arrange | positioned by the lower surface side of the film-like member 1. Also in the case where the auxiliary film-like member 13 is disposed on each of the upper surface side and the lower surface side of the film-like member 1, the same attachment method is possible.

ここで、図１３は補助膜状部材１３の取り付け方の例を説明するための概念図であり、膜状部材１，線状部材２，補助膜状部材１３，及び螺旋状のコイル１４の構造や寸法は厳密なものではない。具体的には例えば、分かり易さを考慮して膜状部材１及び補助膜状部材１３の網目の図示は省略しており、また、相互の配置間隔は厳密なものではない。また、前記部材以外の構成の図示は省略している。さらに、図１３において膜状部材１を一点鎖線で図示しているのは、単に他の部材との区別の分かり易さを考慮してのものであり、その他の意味はない。   Here, FIG. 13 is a conceptual diagram for explaining an example of how to attach the auxiliary film-like member 13, and the structure of the film-like member 1, the linear member 2, the auxiliary film-like member 13, and the spiral coil 14 is shown. And the dimensions are not exact. Specifically, for example, the illustration of the mesh of the film-like member 1 and the auxiliary film-like member 13 is omitted in consideration of intelligibility, and the mutual arrangement intervals are not strict. Moreover, illustration of structures other than the said member is abbreviate | omitted. Furthermore, the membrane-like member 1 is illustrated by a dashed dotted line in FIG. 13 merely in consideration of the intelligibility of distinction from other members, and has no other meaning.

あるいは、膜状部材１と線状部材２とが上述の構成の場合で、補助膜状部材１３も金網であり且つ取付部材１４として結束・結合リング、具体的には例えばステンレス製のねじ式接続ワイヤーリングが用いられる場合には、膜状部材１と補助膜状部材１３との網目を貫通しつつ線状部材２の周囲に環状に配設されたワイヤーリングの接続部がねじ止めされることにより、補助膜状部材１３がワイヤーリングによって線状部材２に取り付けられる。   Alternatively, in the case where the film-like member 1 and the linear member 2 have the above-mentioned configuration, the auxiliary film-like member 13 is also a wire mesh, and a binding / coupling ring as the attachment member 14, specifically, for example, a stainless steel screw connection When a wire ring is used, the connecting portion of the wire ring annularly disposed around the linear member 2 is screwed while penetrating the mesh of the film member 1 and the auxiliary film member 13 Thereby, the auxiliary film-like member 13 is attached to the linear member 2 by a wire ring.

あるいはまた、膜状部材１と線状部材２とが上述の構成の場合で、補助膜状部材１３も金網であり且つ取付部材１４として結束具、具体的には例えば結束線や結束バンドが用いられる場合には、膜状部材１と補助膜状部材１３との網目を貫通しつつ線状部材２の周囲に巻き付けられた結束線や結束バンドが締められることにより、補助膜状部材１３が結束線や結束バンドによって線状部材２に取り付けられる。   Alternatively, in the case where the film-like member 1 and the linear member 2 have the above-mentioned configuration, the auxiliary film-like member 13 is also a wire mesh, and a binding tool, specifically a binding wire or binding band, for example, is used as the attachment member 14. In the case where it is possible, the auxiliary film-like member 13 is bound by tightening the binding wire and the binding band wound around the linear member 2 while penetrating the mesh of the film-like member 1 and the auxiliary film-like member 13 It is attached to the linear member 2 by a wire or a binding band.

ここで、補助膜状部材１３が線状部材２に取り付けられる際には、補助膜状部材１３の周縁の全周が隙間なく線状部材２に取り付けられるようにしても良いし、周縁のうちの一部が線状部材２に取り付けられるようにしても良い。そして、必要に応じて複数個の取付部材１４が用いられて良い。ただし、補助膜状部材１３が四角形である場合の四辺のそれぞれのように、平面視における四方において補助膜状部材１３が線状部材２に取り付けられることが好ましい。   Here, when the auxiliary film-like member 13 is attached to the linear member 2, the entire periphery of the peripheral edge of the auxiliary film-like member 13 may be attached to the linear member 2 without a gap, A portion of the wire may be attached to the linear member 2. And several attachment members 14 may be used as needed. However, it is preferable that the auxiliary film-like member 13 be attached to the linear member 2 in four directions in plan view, as in each of the four sides in the case where the auxiliary film-like member 13 is a square.

なお、上述のような取り付け方によって補助膜状部材１３が取り付けられることにより、補助膜状部材１３が膜状部材１の上面に配設される場合には特に補助膜状部材１３が膜状部材１に自然に接触しながら配設されることが考えられるものの、補助膜状部材１３が膜状部材１の上面（言い換えると、表面）若しくは下面（言い換えると、裏面）に接触していることは本発明において必須の条件ではない。また、補助膜状部材１３は膜状部材１と離隔された状態で（即ち、両者の面間に所定の隙間が設けられた状態で）配設されても良い。   In addition, when the auxiliary film-like member 13 is disposed on the upper surface of the film-like member 1 by attaching the auxiliary film-like member 13 by the attachment method as described above, the auxiliary film-like member 13 is particularly a film-like member Although it is conceivable that the auxiliary film-like member 13 is disposed in contact with 1 naturally while being in contact with the upper surface (in other words, the front surface) or the lower surface (in other words, the back surface) of the film member 1 It is not an essential condition in the present invention. Further, the auxiliary film-like member 13 may be disposed in a state of being separated from the film-like member 1 (that is, in a state in which a predetermined gap is provided between the two surfaces).

ここで、金網は、編み込みの向き（方向）によって荷重分担（言い換えると、エネルギー吸収性能）が異なる異方性材料である。そして、例えば図１４に一部が示される菱形金網などの金網では、飛来物などの衝突による衝撃によって図における左右方向に配設される列線１５の引き抜けが生じると、当該引き抜かれた列線１５の箇所が列状の裂け目となって金網は断裂し、エネルギー吸収性能を発揮し得なくなってしまう。   Here, the wire mesh is an anisotropic material in which load sharing (in other words, energy absorption performance) differs depending on the direction (direction) of knitting. For example, in a wire mesh such as a rhombus wire mesh partially shown in FIG. 14, when a pull-out of the row line 15 disposed in the left and right direction in the drawing occurs due to an impact due to a collision of a flying object etc. The portion of the line 15 becomes a line-like tear and the wire mesh is torn and it becomes impossible to exhibit energy absorption performance.

このため、膜状部材１及び補助膜状部材１３として金網が用いられる場合に、金網各々の編み込みの向きが異なるように膜状部材１と補助膜状部材１３とが配設されることにより、飛来物などの衝突による衝撃荷重が加えられた際のエネルギー吸収性能と局所貫通防止性能との両方を良好に発揮させることが可能になる。   For this reason, when a wire mesh is used as the film-like member 1 and the auxiliary film-like member 13, the film-like member 1 and the auxiliary film-like member 13 are arranged such that the directions of knitting of the wire mesh differ. It becomes possible to well exhibit both the energy absorption performance and the local penetration prevention performance when an impact load due to a collision such as a flying object is applied.

編み込みの向きについて、図１４に一部が示される菱形金網において、鋸歯型に屈曲して隣り合うものと係合する列線１５が配設される方向（言い換えると列線１５の軸方向・長手方向であり、図１４における左右方向である）を展開直角方向（図中の符号Ｏdの矢印の方向）と呼び、前記列線１５が配設される方向と直交する方向（即ち、図１４における上下方向である）を展開方向（図中の符号Ｄdの矢印の方向）と呼ぶ。なお、このような展開方向（矢印Ｄd）及び展開直角方向（矢印Ｏd）の考え方は、亀甲金網でも同じである。   With regard to the direction of knitting, in the rhombic wire mesh partially shown in FIG. 14, the direction in which the row lines 15 which are bent in a sawtooth shape and engaged with the adjacent ones are arranged (in other words, the axial direction The direction, which is the left-right direction in FIG. 14, is referred to as the development orthogonal direction (the direction of the arrow of symbol Od in the drawing), and the direction orthogonal to the direction in which the column line 15 is disposed (ie, in FIG. The vertical direction is referred to as the expansion direction (the direction of the arrow of symbol Dd in the drawing). In addition, the way of thinking of such a deployment direction (arrow Dd) and a deployment right angle direction (arrow Od) is the same also with a turtleskin metal mesh.

そして、防護対象物を覆うように張られて設けられる膜状部材１（言い換えると、防護対象物を保護するために膜状部材１によって覆う範囲）が例えば長方形や楕円形のように平面視における直交する二方向の寸法が異なる場合に、金網の展開方向が長手方向になるように膜状部材１が形成され配設されることにより、良好なエネルギー吸収性能が膜状部材１によって発揮され得る。   Then, the film-like member 1 provided to be stretched so as to cover the protection object (in other words, the range covered by the film-like member 1 to protect the protection object) is, for example, rectangular or elliptical in plan view When the dimensions of the two orthogonal directions are different, the film-like member 1 is formed and disposed such that the development direction of the wire mesh is in the longitudinal direction, so that good energy absorbing performance can be exhibited by the film-like member 1 .

一方、金網の展開方向が膜状部材１の展開方向と直交する方向になるように補助膜状部材１３が形成され配置されることにより、良好な貫通防止性能が補助膜状部材１３によって発揮され得る。   On the other hand, the auxiliary film-like member 13 is formed and arranged such that the direction of expansion of the wire mesh is perpendicular to the direction of expansion of the film-like member 1, so that good penetration prevention performance is exhibited by the auxiliary film-like member 13. obtain.

すなわち、本発明の膜状部材の支持方法及び膜状部材の支持構造は、例えば図１に示す形態を例に挙げると、膜状部材１の平面視における長手方向は図における上下方向であるので金網の展開方向が図における上下方向になるように膜状部材１が形成され配置されることによって良好なエネルギー吸収性能が発揮され得る。本発明の膜状部材の支持方法及び膜状部材の支持構造は、また、例えば図７に示す形態を例に挙げると、各部材の裏面と表面とが上下方向において対向して配置された二枚の膜状部材１の平面視における長手方向は図における上下方向であるので金網の展開方向が図における上下方向になるように二枚の膜状部材１のどちらもが形成され配置されることによって更に良好なエネルギー吸収性能が発揮され得る。つまり、膜状部材１が一枚若しくは上下に対向して配置された二枚以上である場合に、金網の展開方向が長手方向になるように全ての膜状部材１が形成され配置されることにより、良好なエネルギー吸収性能が発揮され得る。したがって、この態様は、想定される飛来物などが例えば球体のようなものであって飛来物などによる金網の貫通防止を重視する必要がない場合に特に、確実な防護機能を発揮することが可能である。   That is, in the method for supporting a film-like member and the support structure for a film-like member according to the present invention, taking the form shown in FIG. 1 as an example, the longitudinal direction of the film-like member 1 in plan view is the vertical direction in the figure. By forming and arranging the film-like member 1 so that the development direction of the wire mesh is in the vertical direction in the figure, a good energy absorption performance can be exhibited. The method for supporting a film-like member and the support structure for a film-like member according to the present invention are, for example, two in which the back surface and the front surface of each member are opposed in the vertical direction. Since the longitudinal direction in plan view of the sheet-like membrane-like member 1 is the vertical direction in the figure, both of the two sheet-like members 1 are formed and arranged such that the spreading direction of the wire mesh is the vertical direction in the figure. In addition, good energy absorption performance can be exhibited. That is, in the case where the membrane-like members 1 are one sheet or two or more sheets arranged to face each other in the vertical direction, all the membrane-like members 1 are formed and arranged such that the development direction of the wire mesh becomes the longitudinal direction. Thus, good energy absorption performance can be exhibited. Therefore, this aspect can exert a reliable protection function particularly when the expected flying objects and the like are, for example, spheres and it is not necessary to place importance on preventing the penetration of the wire mesh by the flying objects etc. It is.

そして、本発明の膜状部材の支持方法及び膜状部材の支持構造は、金網の展開方向が長手方向になるように形成され配置された膜状部材１に加え、金網の展開方向が前記膜状部材１の展開方向と直交する方向になるように補助膜状部材１３が形成され配置されることにより、良好なエネルギー吸収性能に加えて良好な貫通防止性能が発揮され得る。したがって、この態様は、想定される飛来物などが例えば柱体のようなものであって飛来物などによる金網の貫通防止を重視する必要がある場合にも、確実な防護機能を発揮することが可能である。   The method for supporting a membrane-like member and the support structure for a membrane-like member according to the present invention are the same as the membrane-like member 1 formed and arranged such that the spreading direction of the wire mesh is the longitudinal direction. By forming and arranging the auxiliary film-like member 13 so as to be in a direction orthogonal to the expanding direction of the sheet-like member 1, good penetration preventing performance can be exhibited in addition to good energy absorbing performance. Therefore, in this embodiment, it is possible to exert a reliable protective function even when supposed flying objects and the like are, for example, a pillar and it is necessary to place importance on preventing the penetration of a wire mesh by flying objects and the like. It is possible.

ここで、膜状部材１と補助膜状部材１３とが組み合わされて使用される場合には、金網の展開方向が上述のように調整されると共に膜状部材１の上面側に補助膜状部材１３が配設されることが好ましい。   Here, when the film-like member 1 and the auxiliary film-like member 13 are used in combination, the deployment direction of the wire mesh is adjusted as described above and the auxiliary film-like member on the upper surface side of the film-like member 1 Preferably, 13 is provided.

したがって、膜状部材１と補助膜状部材１３とが組み合わされて使用される場合の好ましい構成の例を挙げると、例えば、図１５(Ａ)に示すように一枚の膜状部材１が用いられる場合には、防護対象物を保護するために覆う範囲の長手方向（図中の符号Ｌdの矢印の方向）に金網の展開方向（図中の符号Ｄdの矢印の方向）が沿うように形成され配置された一枚の膜状部材１の上面側に、膜状部材１の展開方向（矢印Ｄd）と直交する方向に金網の展開方向（矢印Ｄd）が沿うように形成された補助膜状部材１３が配設されることが好ましい。また、図１５(Ｂ)に示すように各部材の裏面と表面とが上下方向において対向して配置された二枚の膜状部材１が用いられる場合には、防護対象物を保護するために覆う範囲の長手方向（矢印Ｌd）に金網の展開方向（矢印Ｄd）が沿うように形成され配置された上下二枚の膜状部材１up，１loのうちの上側の膜状部材１upの上面側に、膜状部材１up，１loの展開方向（矢印Ｄd）と直交する方向に金網の展開方向（矢印Ｄd）が沿うように形成された補助膜状部材１３が配設されることが好ましい。 Therefore, to cite an example of a preferable configuration in which the film-like member 1 and the auxiliary film-like member 13 are used in combination, for example, one film-like member 1 is used as shown in FIG. If it is possible, the direction of development of the wire mesh (direction of the arrow Dd in the figure) follows the longitudinal direction (direction of the arrow Ld in the figure) of the covering area to protect the protection object Auxiliary film shaped so that the development direction (arrow Dd) of the wire mesh is parallel to the upper surface side of the single film-like member 1 arranged in the direction perpendicular to the deployment direction (arrow Dd) of the film 1 Preferably, a member 13 is provided. Further, as shown in FIG. 15 (B), in the case where two film-like members 1 are used in which the back surface and the front surface of each member are opposed to each other in the vertical direction, the protection target is protected. The upper film-like member 1 up of the two upper and lower film-like members 1 up and 1 lo formed and disposed so that the development direction (arrow Dd) of the wire mesh is along the longitudinal direction (arrow Ld) of the covering range On the upper surface side, an auxiliary film-like member 13 formed so that the development direction (arrow Dd) of the wire mesh is aligned in a direction orthogonal to the development direction (arrow Dd) of the film-like members 1 up and 1 lo Is preferred.

ここで、図１５は膜状部材１，１up，１loの展開方向と補助膜状部材１３の展開方向との関係を説明するための概念図であり、各々の構造や寸法（相互の配置間隔を含む）は厳密なものではなく、また、膜状部材１，１up，１lo及び補助膜状部材１３以外の構成の図示は省略している。 Here, FIG. 15 is a conceptual diagram for explaining the relationship between the developing direction of the film-like members 1, 1 up and 1 lo and the developing direction of the auxiliary film-like member 13; The spacing is not strictly limited, and the illustration of the configuration other than the film-like members 1, 1 up and 1 lo and the auxiliary film-like member 13 is omitted.

本発明の膜状部材の支持方法及び膜状部材の支持構造における緩衝体６によるエネルギー吸収性能を検証した実施例を図１６及び図１７を用いて説明する。   An embodiment in which the energy absorption performance by the buffer 6 in the film-like member supporting method and the film-like member supporting structure of the present invention is verified will be described with reference to FIGS.

緩衝体６は、枠体３の変形を抑制すると共に線状部材２に発生する張力の急激な増加を緩和するためのものであり、緩やか且つ長時間に亙って進行する変形性能（エネルギー吸収性能）が求められる。   The buffer 6 is for suppressing deformation of the frame 3 and for alleviating a rapid increase in tension generated in the linear member 2, and it is a deforming performance (energy absorption which progresses gently and over a long period of time) Performance) is required.

そこで、ここでは、有限要素法を用いた数値解析により、緩衝体６による緩やか且つ長時間に亙って進行する変形性能（エネルギー吸収性能）の発現性を検証した。   Therefore, here, by the numerical analysis using the finite element method, the expression of deformation performance (energy absorption performance) progressing slowly and over a long time by the buffer body 6 was verified.

検証では、想定した飛来物が膜状部材１に衝突したときの作用荷重を同定して線状部材２に発生する張力を同定し、当該同定された張力を用いて緩衝体６のエネルギー吸収性能を解析した。本実施例では、重錘等を実際に衝突させて実施した自由落下試験の測定結果に基づいて数値解析によって作用荷重を同定して線状部材２に発生する張力を同定した。数値解析の結果、具体的には、飛来物の衝突から約０．０５秒後に最大作用荷重が発生する荷重が同定され、当該同定された荷重が検証用の入力荷重として用いられた。   In the verification, the acting load when the assumed flying object collides with the film-like member 1 is identified, the tension generated in the linear member 2 is identified, and the energy absorption performance of the buffer 6 is determined using the identified tension. Was analyzed. In this example, the acting load was identified by numerical analysis based on the measurement result of the free fall test which was carried out by actually causing a weight or the like to collide, and the tension generated in the linear member 2 was identified. As a result of the numerical analysis, specifically, a load at which the maximum action load occurs is identified about 0.05 seconds after the impact of the flying object, and the identified load is used as an input load for verification.

そして、図１６(Ａ)に示す緩衝体６の解析モデルを用いて有限要素法を用いた数値解析を行った。なお、図１６(Ａ)に示す緩衝体６の解析モデルは図５に示す緩衝体６の構成と、固定ボルト５の本数及び抑え板７の垂直板７ａの有無を除いて同じ構成であり、支持部４の外径保持部材４ａ並びに緩衝体６の外筒６Ａ及び緩衝部材６Ｂはいずれも円柱鋼管とされ、抑え板７は鋼板とされた。   Then, numerical analysis using the finite element method was performed using the analysis model of the buffer 6 shown in FIG. 16 (A). The analysis model of the buffer 6 shown in FIG. 16A is the same as the configuration of the buffer 6 shown in FIG. 5 except for the number of fixing bolts 5 and the presence or absence of the vertical plate 7a of the pressing plate 7 The outer diameter holding member 4a of the support portion 4 and the outer cylinder 6A and the shock absorbing member 6B of the shock absorbing body 6 are all made of a cylindrical steel pipe, and the pressing plate 7 is made of a steel plate.

数値解析により、解析終了時の解析モデルの変形図として図１６(Ｂ)に示す結果が得られ、また、吸収エネルギーの時刻歴として図１７に示す結果が得られた。なお、図１７は、具体的には、高さ１０ ｍｍ の緩衝構造の吸収エネルギー量の推移を示している。   By numerical analysis, the result shown in FIG. 16B is obtained as a deformation diagram of the analysis model at the end of analysis, and the result shown in FIG. 17 is obtained as a time history of absorbed energy. Specifically, FIG. 17 shows the transition of the absorbed energy amount of the buffer structure having a height of 10 mm.

図１６(Ｂ)に示す結果から、荷重を受ける外径保持部材４ａが前方に（即ち、膜状部材１に向けて）移動し、外筒６Ａと共に内部の緩衝部材６Ｂを圧縮変形させることでエネルギーが吸収されることが確認された。   From the result shown in FIG. 16 (B), the outer diameter holding member 4a receiving the load is moved forward (that is, toward the film-like member 1) to compress and deform the buffer member 6B inside with the outer cylinder 6A. It was confirmed that energy was absorbed.

なお、緩衝部材６Ｂは円柱鋼管を組み合わせた構成であり、圧縮荷重を受ける円柱鋼管は、初期段階ではアーチ効果によって強い抵抗力を示すものの、変形が進行して内部への変形が発生すると剛性が低下し、作用する荷重が低下しても鋼管の変形が進行することが確認された。   The cushioning member 6B has a configuration in which cylindrical steel pipes are combined, and the cylindrical steel pipes that receive a compressive load show strong resistance due to the arch effect in the initial stage, but if deformation progresses and internal deformation occurs, rigidity It was confirmed that the deformation of the steel pipe progressed even if the load applied was lowered.

また、作用する荷重の大きさに対して緩衝部材６Ｂとしての鋼管の板厚を適切に設定することにより、吸収エネルギーが緩やかに増加し且つ最終変形時に鋼管の変形が内側に発生するようにさせることが可能であることが確認された。   Further, by appropriately setting the thickness of the steel pipe as the buffer member 6B with respect to the magnitude of the load to be applied, the absorbed energy is gradually increased and deformation of the steel pipe is generated at the time of final deformation. It was confirmed that it was possible.

そして、緩衝部材６Ｂとしての鋼管の板厚が適切に設定された場合には、図１７に示すように、入力する荷重が０．０５秒以降で低下する一方で、吸収エネルギーは０．０６秒程度まで増加し、本発明の緩衝体６の構造は優れた緩衝性能を発現し得ることが確認された。   Then, when the plate thickness of the steel pipe as the buffer member 6B is appropriately set, as shown in FIG. 17, while the input load decreases after 0.05 seconds, the absorbed energy is 0.06 seconds. It has been confirmed that the structure of the buffer 6 of the present invention can increase to a certain extent and can exhibit excellent buffer performance.

本実施例における検証から、図５や図１６に示す構造を有する緩衝体６を膜状部材１の支持構造物に組み込むことで、膜状部材１を支持する線状部材２に発生する張力の増加が緩和され、膜状部材を支持する枠体の変形も抑制されることが確認された。なお、図５に示す例では外筒６Ａ内に同一寸法の七本の緩衝部材６Ｂが相互の隙間及び外筒６Ａ内周面との隙間が殆ど無い（言い換えると、ほぼ接する）態様で配設されるようにしているが、同一寸法の七本の緩衝部材６Ｂが相互に完全に接すると共に外筒６Ａ内周面と完全に接する態様で配設されるようにしても良い。   From the verification in the present embodiment, by incorporating the buffer body 6 having the structure shown in FIGS. 5 and 16 into the support structure of the membrane member 1, tension generated in the linear member 2 supporting the membrane member 1 can be obtained. It has been confirmed that the increase is alleviated and the deformation of the frame supporting the membrane member is also suppressed. In the example shown in FIG. 5, seven buffer members 6B of the same size are disposed in the outer cylinder 6A in such a manner that there is almost no gap between them and the inner peripheral surface of the outer cylinder 6A (in other words, almost in contact). However, seven buffer members 6B of the same size may be disposed in such a manner that they are completely in contact with each other and completely in contact with the inner peripheral surface of the outer cylinder 6A.

１ 膜状部材
２ 線状部材
３ 枠体
４ 支持部 1 film member 2 linear member 3 frame 4 support portion

Claims (10)

支持部を備える枠体に前記支持部を介して支持される線状部材によって膜状部材の周縁部が全周に亙って支持され、前記支持部が緩衝体を有し、前記緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有することを特徴とする膜状部材の支持方法。   The peripheral portion of the film-like member is supported over the entire circumference by the linear member supported via the support portion on the frame having the support portion, the support portion has a buffer, and the buffer is A method of supporting a film-like member comprising: an outer cylinder constituting an outer peripheral wall; and a buffer member disposed inside the outer cylinder. 前記線状部材の少なくとも一端が、引張力に対して引張りの向きに変形しつつ抵抗力を発揮する機構によって前記枠体に取り付けられることを特徴とする請求項１記載の膜状部材の支持方法。 At least one end, the support of the film member according to claim 1, wherein the mechanism for exerting a resistance force while being deformed in the direction of pull with respect to the tensile force, characterized in that attached to the frame process of the linear member . 前記膜状部材の上面側と下面側とのうちの少なくとも一方に補助膜状部材が配設され、当該補助膜状部材が前記線状部材に取り付けられることを特徴とする請求項１記載の膜状部材の支持方法。 At least one auxiliary film-like member of the upper and lower sides of the film-like member is disposed, membrane of claim 1 wherein the auxiliary film member is equal to or attached to the linear member Method of supporting the rod-like member 支持部を備える枠体に前記支持部を介して支持される線状部材によって膜状部材の周縁部が全周に亙って支持され、前記膜状部材の上面側と下面側とのうちの少なくとも一方に補助膜状部材が配設されると共に当該補助膜状部材が前記線状部材に取り付けられ、前記膜状部材及び前記補助膜状部材として金網が用いられ、金網の展開方向が長手方向になるように前記膜状部材としての金網が形成され配置されると共に、金網の展開方向が前記膜状部材としての前記金網の展開方向と直交するように前記補助膜状部材としての金網が形成され配置されることを特徴とする膜状部材の支持方法。   The peripheral portion of the film-like member is supported over the entire circumference by the linear member supported via the support portion on the frame having the support portion, and of the upper surface side and the lower surface side of the film-like member An auxiliary film-like member is disposed on at least one side and the auxiliary film-like member is attached to the linear member, and a wire mesh is used as the film-like member and the auxiliary film-like member A wire mesh as the film-like member is formed and disposed in such a manner that the wire mesh as the auxiliary film-like member is formed such that the spreading direction of the wire mesh is orthogonal to the direction of the wire mesh as the film-like member. A method of supporting a film-like member, comprising: 支持部を備える枠体に前記支持部を介して支持される線状部材によって膜状部材の周縁部が全周に亙って支持され、前記支持部を備える前記枠体と前記線状部材と前記膜状部材との組み合わせが二組用いられて二枚の前記膜状部材が上下に対向して配置されると共にこれら二枚の膜状部材のうちの上側の膜状部材の上面側に補助膜状部材が配設されて当該補助膜状部材が前記線状部材に取り付けられ、前記二枚の膜状部材及び前記補助膜状部材として金網が用いられ、金網の展開方向が長手方向になるように前記二枚の膜状部材としての二枚の金網のどちらもが形成され配置されると共に、金網の展開方向が前記二枚の膜状部材としての前記二枚の金網の展開方向と直交するように前記補助膜状部材としての金網が形成され配置されることを特徴とする膜状部材の支持方法。   The peripheral portion of the film-like member is supported over the entire circumference by the linear member supported via the support portion on the frame having the support portion, and the frame and the linear member including the support portion Two sets of the combination with the film-like member are used, two sheets of the film-like member are arranged to face up and down, and an auxiliary side of the upper film-like member of the two film-like members is used. A film-like member is disposed, the auxiliary film-like member is attached to the linear member, a wire mesh is used as the two film-like members and the auxiliary film-like member, and the development direction of the wire mesh becomes the longitudinal direction. As described above, both of the two wire nets as the two membrane members are formed and disposed, and the spreading direction of the wire net is orthogonal to the spreading direction of the two wire nets as the two membrane members. That the wire mesh as the auxiliary film-like member is formed and arranged to Method of supporting the film member to symptoms. 膜状部材と、線状部材と、支持部を備える枠体とを有し、前記線状部材は前記支持部を介して前記枠体に支持され、前記膜状部材の周縁部が全周に亙って前記線状部材によって支持され、前記支持部が緩衝体を有し、前記緩衝体が外周壁を構成する外筒と当該外筒の内側に配設される緩衝部材とを有することを特徴とする膜状部材の支持構造。   It has a film-like member, a linear member, and a frame provided with a support part, the linear member is supported by the frame via the support part, and the periphery of the film-like member is on the entire circumference The support member is supported by the linear member, the support portion includes a buffer, and the buffer includes an outer cylinder forming an outer peripheral wall and a buffer member disposed inside the outer cylinder. The support structure of the film-like member to be characterized. 前記線状部材の少なくとも一端が、引張力に対して引張りの向きに変形しつつ抵抗力を発揮する機構によって前記枠体に取り付けられることを特徴とする請求項６記載の膜状部材の支持構造。 7. The support structure for a film-like member according to claim 6 , wherein at least one end of the linear member is attached to the frame by a mechanism that exerts a resistance while being deformed in a tensile direction against a tensile force. . 前記膜状部材の上面側と下面側とのうちの少なくとも一方に配設されると共に前記線状部材に取り付けられる補助膜状部材を更に有することを特徴とする請求項６記載の膜状部材の支持構造。 The film-like member according to claim 6 , further comprising an auxiliary film-like member disposed on at least one of the upper surface side and the lower surface side of the film-like member and attached to the linear member. Support structure. 膜状部材と、線状部材と、支持部を備える枠体とを有し、前記線状部材は前記支持部を介して前記枠体に支持され、前記膜状部材の周縁部が全周に亙って前記線状部材によって支持され、前記膜状部材の上面側と下面側とのうちの少なくとも一方に配設されると共に前記線状部材に取り付けられる補助膜状部材を更に有し、前記膜状部材及び前記補助膜状部材が金網であり、金網の展開方向が長手方向になるように前記膜状部材としての金網が形成され配置されると共に、金網の展開方向が前記膜状部材としての前記金網の展開方向と直交するように前記補助膜状部材としての金網が形成され配置されることを特徴とする膜状部材の支持構造。   It has a film-like member, a linear member, and a frame provided with a support part, the linear member is supported by the frame via the support part, and the periphery of the film-like member is on the entire circumference There is further provided an auxiliary membrane member supported by the linear member and disposed on at least one of the upper surface side and the lower surface side of the membrane member and attached to the linear member, The film-like member and the auxiliary film-like member are wire netting, and the wire netting as the film-like member is formed and arranged such that the extending direction of the wire netting becomes the longitudinal direction. A support structure for a film-like member, wherein a wire mesh as the auxiliary film-like member is formed and disposed so as to be orthogonal to the developing direction of the wire mesh. 膜状部材と、線状部材と、支持部を備える枠体とを有し、前記線状部材は前記支持部を介して前記枠体に支持され、前記膜状部材の周縁部が全周に亙って前記線状部材によって支持され、前記膜状部材と前記線状部材と前記支持部を備える前記枠体との組み合わせを二組有して二枚の前記膜状部材が上下に対向して配置されると共にこれら二枚の膜状部材のうちの上側の膜状部材の上面側に配設されて前記線状部材に取り付けられる補助膜状部材を更に有し、前記二枚の膜状部材及び前記補助膜状部材が金網であり、金網の展開方向が長手方向になるように前記二枚の膜状部材としての二枚の金網のどちらもが形成され配置されると共に、金網の展開方向が前記二枚の膜状部材としての前記二枚の金網の展開方向と直交するように前記補助膜状部材としての金網が形成され配置されることを特徴とする膜状部材の支持構造。   It has a film-like member, a linear member, and a frame provided with a support part, the linear member is supported by the frame via the support part, and the periphery of the film-like member is on the entire circumference Thus, two sets of the film-like member, the linear-like member, and the frame including the support portion are supported by the linear member, and the two film-like members are vertically opposed to each other. And an auxiliary film-like member provided on the upper surface side of the upper film-like member of the two film-like members and attached to the linear member, the two film-like members The member and the auxiliary film-like member are wire nets, and both of the two wire nets as the film-like members are formed and arranged such that the extending direction of the wire net is the longitudinal direction, and The auxiliary film so that the direction is orthogonal to the developing direction of the two wire nets as the two film members. The support structure of the membrane member, characterized in that the wire mesh of the member is formed is arranged.
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