JP7610271B2

JP7610271B2 - Shutter reinforcement device

Info

Publication number: JP7610271B2
Application number: JP2022003696A
Authority: JP
Inventors: 光治岩川
Original assignee: サンユウテック株式会社
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2025-01-08
Anticipated expiration: 2042-01-13
Also published as: JP2023102934A

Description

本発明は、シャッターの補強装置に関し、より詳しくは、建物、例えば、工場、倉庫、店舗、ガレージ等の出入口に、防火、侵入防止等のために設置し開閉するシャッターにおいて、台風、竜巻、吹雪等による強風等によって、スラットが撓んでまくられたり破損したりすることを抑制するシャッターの補強装置に関する。 The present invention relates to a shutter reinforcement device, and more specifically, to a shutter reinforcement device that prevents slats from bending and being torn up or damaged by strong winds such as those caused by typhoons, tornadoes, snowstorms, etc., in shutters that are installed and opened and closed for fire prevention and intrusion prevention purposes at the entrances and exits of buildings such as factories, warehouses, stores, garages, etc.

従来、工場、倉庫、ガレージ等の建物の出入口に設置されるシャッターのスラットの補強のための手段として、シャッターの一面側に、撓みを防止する補強部材を設ける構成は、知られている（一例として、特許文献１、２参照）。 Conventionally, a configuration has been known in which a reinforcing member is provided on one side of a shutter to prevent it from bending as a means of reinforcing the slats of shutters installed at the entrances of buildings such as factories, warehouses, and garages (see Patent Documents 1 and 2 for examples).

例えば、特許文献１には、シャッターにおいて、スラットを案内する左右のガイドレールの一部として、閂案内溝部を設けるとともに、閂案内溝部内にストッパを固定し、スラッとの一面に取り付けた座板上に載置した閂の両端を、左右の閂案内溝部で上下方向に案内し、下降時にストッパに載置して、閂をスラットの一面側において、風圧のかかかったスラットを押さえる開閉体の補強構造が記載されている。 For example, Patent Document 1 describes a reinforcing structure for an opening and closing body in which a bar guide groove is provided as part of the left and right guide rails that guide the slats in a shutter, a stopper is fixed in the bar guide groove, and both ends of a bar placed on a seat plate attached to one side of the slat are guided in the vertical direction by the left and right bar guide grooves, and when lowered, the bar is placed on the stopper, and the bar is placed on one side of the slat, holding down the slat when it is subjected to wind pressure.

特許文献２には、シャッターにおいて、スラットの一面側に、螺子孔を有する補強基材を固定し、補強体を補強基材の螺子孔に螺子で着脱自在に取り付けられるシャッターカーテンの補強構造が記載されている。 Patent document 2 describes a reinforcing structure for a shutter curtain in which a reinforcing base material having a screw hole is fixed to one side of the slats of a shutter, and a reinforcing body is detachably attached to the screw hole of the reinforcing base material with a screw.

特許第３５９４５０３号公報Patent No. 3594503 特開平８－２９６３７９号公報Japanese Patent Application Publication No. 8-296379

近年、地球温暖化が原因か明確ではないが、異常気象による台風、竜巻等の発生により、国内各地で強風による建物の被害が多発しており、強風によるシャッターの捲れ、破損が多く生じ、その対策が急がれている。 Although it is not clear whether global warming is the cause, in recent years, there have been many instances of damage to buildings caused by strong winds due to abnormal weather such as typhoons and tornadoes across the country, with shutters often being torn up and damaged by the strong winds, and measures to combat this are urgently needed.

しかしながら、新設のシャッターのみでなく、特に、すでに設置され使用中である既設のシャッターに、強風対策の補強装置を付設することは、費用、手間等がかかり、必ずしも、対策が進まないのが現状である。また、異常気象による強風、竜巻等は、その風圧だけでなく風向きが瞬間的に変わったりして、並の補強装置を付設しても必ずしも、十分ではない。 However, installing reinforcement devices to protect against strong winds, not only on newly installed shutters but also on existing shutters that have already been installed and are in use, is costly and time-consuming, and the current situation is that measures are not necessarily progressing. Furthermore, strong winds and tornadoes caused by abnormal weather not only cause wind pressure but also cause wind direction to change instantaneously, so even installing ordinary reinforcement devices is not necessarily sufficient.

シャッターに付設する強風対策のための補強装置としては、次の要件を考慮する必要がある。
（１）補強装置自体の製造コスト及び既設のシャッターへの付設費用が安価である。
（２）特に、既設のシャッターの場合は、簡単な作業、低価格で付設できる。
（３）補強装置の利用者（建物の管理者等）が、簡単に補強状態にして使用できる。
（４）強風による風圧等に対して、補強装置による補強の強度が大きい。屋外からの風圧だけでなく、屋内側からの圧力に対して強度を有する。 When selecting a reinforcing device to be attached to a shutter to protect it from strong winds, the following requirements must be taken into consideration:
(1) The manufacturing costs of the reinforcement device itself and the cost of attaching it to an existing shutter are low.
(2) In particular, in the case of existing shutters, it can be installed with simple work and at low cost.
(3) The user of the reinforcement device (such as a building manager) can easily set it to the reinforced state and use it.
(4) The reinforcing device provides strong reinforcement against wind pressure from strong winds. It is strong not only against wind pressure from outside, but also against pressure from inside the building.

なお、上記（４）に関連して以下補足する。通常の強風の際には、シャッターのスラットに対して、建物の内側に向けて風圧を与えるので、スラットを内側だけから支えればよいが、台風、竜巻等で生じる異常な強風が発生した際には、内側に向けて風圧を与えていた強風の向きが、瞬間的に止んだり、風向きが変わったりすると、スラットが反動的に外側に移動したり、ガタついたりするようなことが生じる。 In addition, in relation to (4) above, the following is an additional note: During normal strong winds, wind pressure is directed towards the inside of the building against the shutter slats, so the slats only need to be supported from the inside. However, when abnormally strong winds occur, such as those caused by typhoons or tornadoes, the direction of the strong winds that were directing wind pressure inwards suddenly stops or changes direction, causing the slats to recoil and move outwards or become loose.

このような場合に、スラットが外側に捲られて破損するようなことも考えられる。或いは、内側及び外側にスラットがガタガタ揺すられて、そのためにスラットを構成するスラット片の結合部が変形したり破損したりして、スラットの破損を引き起こすことも考えられる。 In such a case, the slats may be curled outward and damaged. Or, the slats may be shaken violently inward and outward, causing the joints between the slat pieces that make up the slats to deform or break, which may lead to damage to the slats.

ところで、特許文献１に記載の開閉体の補強構造は、スラット案内溝部と一体に閂案内溝部を設ける、ガイドレールの一部として閂案内溝部を設ける構成であるので、従来のガイドレールとは全く異なる複雑な構造のガイドレールが必要であり、コストが高くなる。 However, the reinforcing structure of the opening/closing body described in Patent Document 1 has a structure in which the bar guide groove portion is provided integrally with the slat guide groove portion, and the bar guide groove portion is provided as part of the guide rail, so a guide rail with a complex structure that is completely different from conventional guide rails is required, resulting in high costs.

そのために、シャッターに、特許文献１に記載の開閉体の補強構造を適用するためには、従来のガイドレールではなく、特許文献１に記載のガイドレールを使用しなくてならないので、多くの費用及び手間が必要と考えられる。 As a result, in order to apply the reinforcing structure of the opening/closing body described in Patent Document 1 to a shutter, it would be necessary to use the guide rail described in Patent Document 1 instead of the conventional guide rail, which would likely require a lot of cost and effort.

従って、特許文献１に記載の開閉体の補強構造を、従来のガイドレールが設置された既設シャッターに適用することは、その施工が面倒であり、費用もかかり、実質的には、困難である。 Therefore, applying the reinforcing structure for the opening/closing body described in Patent Document 1 to an existing shutter with a conventional guide rail installed is difficult, costly, and practically difficult.

また、特許文献１に記載の開閉体の補強構造は、シャッターの一面側のみにガイドレールにおける閂案内溝部が設けられているので、閂は、シャッターの一面側のみに配置される構成であるので、上記外側からの風圧の停止の際等に反動として生じるスラットの外側への移動に対しては、必ずしも十分に補強されるとは言えない。 In addition, the reinforcing structure of the opening/closing body described in Patent Document 1 has a bar guide groove in the guide rail provided on only one side of the shutter, and the bar is arranged only on one side of the shutter, so it cannot necessarily be said that the structure provides sufficient reinforcement against the outward movement of the slats that occurs as a reaction when the wind pressure from the outside stops.

特許文献２に記載のシャッターカーテンの補強構造では、スラットの一面側に、螺子孔を有する補強基材を固定しなくてはならず、スラットの構造が複雑となり、しかも、補強体は、必要の都度、複数の補強基材の螺子孔に複数の螺子で着脱自在に取り付けなくてはならないので、シャッターカーテンの閉鎖の度に面倒な取り付け作業が必要となる。 In the reinforcing structure of the shutter curtain described in Patent Document 2, a reinforcing base material with screw holes must be fixed to one side of the slat, making the slat structure complicated. Moreover, the reinforcing body must be detachably attached to the screw holes of multiple reinforcing base materials with multiple screws each time it is needed, requiring tedious installation work each time the shutter curtain is closed.

本発明は、特許文献１、２に示すような従来のシャッターのスラットの補強のための手段における上記のような問題を解決することを目的とするものであり、簡単な構造であり、その製造ないしシャッターへの付設のためのコストが安く、特に既設のシャッターにも容易に設置可能で、利用者も簡単に補強状態にセットして使用でき、シャッターを閉じた際に、強風によって風圧のかかるスラットを表裏両面側から支え、捲られたり、破損したりすることを、効果的に抑制可能なシャッターの補強装置を実現することを課題とする。 The present invention aims to solve the above problems with the conventional means for reinforcing shutter slats as shown in Patent Documents 1 and 2, and aims to realize a shutter reinforcing device that has a simple structure, is inexpensive to manufacture and attach to a shutter, can be easily installed on an existing shutter, and can be easily set by the user to the reinforced state when used. It also aims to support the slats from both the front and back sides when the shutter is closed, which are subject to wind pressure from strong winds, and effectively prevents them from being turned up or damaged.

本発明は上記課題を解決するために、建物の構造体の一部である左右の垂直枠と、左右の垂直枠に沿って起立した左右のガイドレールと、を備え、屋内側に垂直枠及びガイドレールのうちのいずれか一方の部材が設けられ、屋外側に垂直枠及びガイドレールのうちのいずれか他方の部材が設けられ、ガイドレールに案内されて昇降するスラットを備えたシャッターに取り付けられて使用され、スラットを屋内側及び屋外側から支持可能とするシャッターの補強装置であって、スラットの最下部の座板における左右の部分の屋内側及び屋外側に、それぞれ固定された屋内側閂載置受け及び屋外側閂載置受けと、屋内側においてスラットを支持可能な屋内側閂と、屋内側に設けられた前記一方の部材に取り付けられ、屋内側閂の両端部を係止して水平に保持する屋内側閂係止部材と、屋外側においてスラットを支持可能な屋外側閂と、屋外側に設けられた前記他方の部材に取り付けられ、屋外側閂の両端部を係止して水平に保持する屋外側閂係止部材と、屋内側閂は、その両端部に係合部を備え、屋内側閂係止部材は、前記一方の部材に取り付けられる固定部と、屋内側閂の係合部を係止する係止部と、を備え、屋外側閂は、その両端部に係合部を備え、屋外側閂係止部材は、前記他方の部材に取り付けられる固定部と、屋外側閂の係合部を係止する係止部と、を備え、屋内側閂及び屋外側閂は、それぞれ屋内側閂係止部材及び屋外側閂係止部材より上方の位置においてのみ、屋内側閂載置受け及び屋外側閂載置受けに載置された状態で昇降可能な構成であることを特徴とするシャッターの補強装置を提供する。 In order to solve the above problems, the present invention provides a shutter reinforcement device that is attached to a shutter equipped with left and right vertical frames that are part of the building structure, and left and right guide rails that stand along the left and right vertical frames, with one of the vertical frames and guide rails provided on the indoor side and the other of the vertical frames and guide rails provided on the outdoor side, and equipped with slats that move up and down guided by the guide rails, and that can support the slats from both the indoor and outdoor sides. The device comprises an indoor side latch support and an outdoor side latch support that are fixed respectively to the indoor side and outdoor side of the left and right parts of the seat plate at the bottom of the slats, an indoor side latch that can support the slats on the indoor side, and a latch that is attached to one of the members provided on the indoor side and that engages both ends of the indoor side latch to hold it horizontally. The shutter reinforcement device is characterized in that it is configured to include an indoor side bar locking member that supports the slats on the outdoor side, an outdoor side bar that is attached to the other member provided on the outdoor side and locks both ends of the outdoor side bar to hold it horizontally, the indoor side bar has engagement parts at both ends, the indoor side bar locking member has a fixed part attached to the one member and a locking part that locks the engagement part of the indoor side bar, the outdoor side bar has engagement parts at both ends, the outdoor side bar locking member has a fixed part attached to the other member and a locking part that locks the engagement part of the outdoor side bar, and the indoor side bar and the outdoor side bar can be raised and lowered while placed on the indoor side bar placement receiver and the outdoor side bar placement receiver only at a position above the indoor side bar locking member and the outdoor side bar locking member, respectively.

屋内側閂の係合部として、屋内側閂の左右の端部には、それぞれ下方に突出した屋内側係合片が固定されており、屋外側閂の係合部として、屋外側閂の左右の端部には、それぞれ下方に突出した屋外側係合片が固定されており、屋内側閂係止部材の係止部として、屋内側係合片を上方から嵌合させて係止する係止孔部が固定部を介して、前記一方の部材に取り付けられており、屋外側閂係止部材の係止部として、屋外側係合片を上方から嵌合させて係止する係止孔部が固定部を介して、前記他方の部材に取り付けられている構成とすることが好ましい。 As the engaging portion of the indoor side latch, indoor side engaging pieces protruding downward are fixed to the left and right ends of the indoor side latch, respectively, and as the engaging portion of the outdoor side latch, outdoor side engaging pieces protruding downward are fixed to the left and right ends of the outdoor side latch, respectively, and it is preferable that as the engaging portion of the indoor side latch engaging member, an engaging hole portion for engaging the indoor side engaging piece from above is attached to one of the members via a fixing portion, and as the engaging portion of the outdoor side latch engaging member, an engaging hole portion for engaging the outdoor side engaging piece from above is attached to the other member via a fixing portion.

屋内側閂の係合部として、屋内側閂の左右の端部には、それぞれ屋内側閂の係合孔部が固定されており、屋外側閂の係合部として、屋外側閂の左右の端部には、それぞれ屋外側閂の係合孔部が固定されており、屋内側閂係止部材の係止部として、屋内側閂の係合孔部に下方から嵌合して係止する屋内側係止片が固定部を介して、前記一方の部材に取り付けられており、屋外側閂係止部材の係止部として、屋外側閂の係合孔部に下方から嵌合して係止する屋外側係止片が固定部を介して、前記他方の部材に取り付けられている構成とすることが好ましい。 As the engaging portion of the indoor side latch, the engaging hole portion of the indoor side latch is fixed to the left and right ends of the indoor side latch, and as the engaging portion of the outdoor side latch, the engaging hole portion of the outdoor side latch is fixed to the left and right ends of the outdoor side latch, and as the engaging portion of the indoor side latch engaging member, an indoor side latching piece that fits into the engaging hole portion of the indoor side latch from below and engages is attached to one of the members via a fixing portion, and as the engaging portion of the outdoor side latch engaging member, an outdoor side latching piece that fits into the engaging hole portion of the outdoor side latch from below and engages is attached to the other member via a fixing portion.

屋内側閂及び屋外側閂は、それぞれ座板と落下防止用ワイヤを介して結ばれている構成とすることが好ましい。 It is preferable that the indoor side latch and the outdoor side latch are each connected to the base plate via a fall prevention wire.

屋内側閂載置受け及び屋外側閂載置受けには、それぞれ落下防止杆が上方に向けて固定されており、屋内側閂及び屋外側閂には、それぞれ落下防止杆が嵌合する落下防止孔が形成されている構成とすることが好ましい。 It is preferable that a fall prevention rod is fixed facing upward to the indoor latch mount and the outdoor latch mount, and that the indoor latch and the outdoor latch each have a fall prevention hole into which the fall prevention rod fits.

本発明に係るシャッターの補強装置によれば、次のような効果が生じる。 The shutter reinforcement device of the present invention provides the following advantages:

（１）本発明に係るシャッターの補強装置は、強風によってシャッターに表裏両面側から風圧等の力が作用しても、スラットを表裏両面側から確実に支えるために、補強の強度が向上し、スラットのまくれ、ガタつき、破損等をより確実に抑制可能とする。 (1) The shutter reinforcement device of the present invention reliably supports the slats from both sides, even when strong winds cause wind pressure and other forces to act on the shutter from both sides, improving the strength of the reinforcement and more reliably preventing the slats from curling, rattling, or being damaged.

（２）本発明に係るシャッターの補強装置は、構造が簡単であるので、部品及び設置コストを低く押さえることが可能であり、特に、既設のシャッターには、容易な設置作業で、比較的安い費用で設置可能である。 (2) The shutter reinforcement device of the present invention has a simple structure, making it possible to keep parts and installation costs low, and in particular, it can be installed on existing shutters with easy installation procedures and at relatively low cost.

本発明に係るシャッターの補強装置の実施例１を説明する図であり、シャッターの補強装置を取り付けたシャッターを建屋の外側から見た正面図である。FIG. 1 is a diagram for explaining a first embodiment of a shutter reinforcement device according to the present invention, and is a front view of a shutter to which a shutter reinforcement device is attached, as viewed from outside the building. 上記実施例１について、補強装置の部品を説明する図であり、（ａ）は屋内側閂及び屋外側閂と、垂直枠及びガイドレールにそれぞれ固定した左右の屋内側閂係止部材及び屋外側閂係止部材と、を示す平面図であり、（ｂ）は左右の屋内側閂係止部材及び屋外側閂係止部材に対する、屋内方側閂及び屋外側閂（二点鎖線で示す。）の関係的構成を示す要部の詳細を示す平面図である。1A is a diagram explaining the parts of the reinforcement device for the above-mentioned Example 1, where (a) is a plan view showing the indoor side bar and outdoor side bar, and the left and right indoor side bar locking members and outdoor side bar locking members fixed to the vertical frame and guide rail, respectively, and (b) is a plan view showing details of key parts showing the relative configuration of the indoor side bar and outdoor side bar (shown by dotted lines) in relation to the left and right indoor side bar locking members and outdoor side bar locking members. 上記実施例１について、（ａ）は図１においてＡ－Ａ方向に見た図であり、（ｂ）は（ａ）の要部の拡大図であり、（ｃ）は（ｂ）に示す屋内側及び屋外側閂受け部に係る構成の分解図である。Regarding the above-mentioned Example 1, (a) is a view taken in the A-A direction in Figure 1, (b) is an enlarged view of the main parts of (a), and (c) is an exploded view of the configuration relating to the indoor and outdoor side latch support parts shown in (b). 上記実施例１について、各部の詳細を説明する図であり、（ａ）は図３（ａ）の要部拡大図であり、（ｂ）は（ａ）においてＣ－Ｃ方向に見た図であり、（ｃ）は図３（ａ）の要部拡大図であり、（ｄ）は（ｃ）においてＤ－Ｄ方向に見た図である。3A and 3B are diagrams for explaining the details of each part of the above-mentioned Example 1, in which (a) is an enlarged view of the main part of FIG. 3A, (b) is a view in the CC direction in (a), (c) is an enlarged view of the main part of FIG. 3A, and (d) is a view in the D-D direction in (c). 上記実施例１について、シャッターを開いた状態を示す正面図である。FIG. 11 is a front view showing a state in which the shutter is open in the first embodiment. 上記実施例１について、（ａ）はシャッターが開閉に伴いスラットが矢印の方向に昇降する途中の状態を示し、（ｂ）はシャッターが開いた状態を示し、図５においてＡ－Ａ方向に見た図である。5. In the first embodiment, (a) shows a state in which the slats are rising and falling in the direction of the arrow as the shutter opens and closes, and (b) shows a state in which the shutter is open, as viewed in the direction AA in FIG. 上記実施例１について、（ａ）は、シャッターが閉じられ、補強装置の屋内側閂及び屋外側閂が、それぞれ左右の屋内側閂係止部材及び屋外側閂係止部材によって、スラットの屋内側及び屋外側に保持された補強状態を示す建屋の外側から見た正面図であり、（ｂ）は閂の落下防止のためのワイヤに替えて設けた屋内側及び屋外側の閂落下防止構造を示す垂直の断面図である。Regarding the above-mentioned Example 1, (a) is a front view seen from outside the building, showing the reinforced state in which the shutter is closed and the indoor side latch and outdoor side latch of the reinforcement device are held on the indoor side and outdoor side of the slat by the left and right indoor side latch engaging members and outdoor side latch engaging members, respectively, and (b) is a vertical cross-sectional view showing the indoor side and outdoor side latch fall prevention structure installed in place of the wire to prevent the latch from falling. 上記実施例１について、（ａ）はシャッターが閉じる方向にスラットが下降する途中の状態を示し、（ｂ）はシャッターが閉じた状態を示し、図７においてＡ－Ａ方向に見た図である。7A shows a state in which the slats are in the middle of descending in the direction in which the shutter is closed, and FIG. 7B shows a state in which the shutter is closed, in the first embodiment, as viewed in the direction AA in FIG. 本発明に係るシャッターの補強装置の実施例２を説明する図であり、（ａ）は垂直枠に取り付けた屋内側の係止片と屋内側閂の係合孔部を示し、（ｂ）は係止片を係合孔部に嵌合した状態を示す斜視図である。1A and 1B are diagrams illustrating a second embodiment of a shutter reinforcement device according to the present invention, in which (a) shows an indoor locking piece attached to a vertical frame and an engagement hole portion of an indoor latch, and (b) is an oblique view showing the state in which the locking piece is fitted into the engagement hole portion. 上記実施例２を説明する図であり、（ａ）はガイドレールに取り付けた屋外側の係止片と屋外側閂の係合孔部を示し、（ｂ）は係止片を係合孔部に嵌合した状態を示す斜視図である。11A and 11B are diagrams for explaining the above-mentioned Example 2, in which (a) shows the outdoor-side locking piece attached to the guide rail and the engagement hole portion of the outdoor side latch, and (b) is an oblique view showing the state in which the locking piece is fitted into the engagement hole portion.

本発明に係るシャッターの補強装置（以下、単に「補強装置」ともいう。）を実施するための形態を、実施例に基づいて図面を参照して、以下に説明する。 The following describes an embodiment of the shutter reinforcement device (hereinafter simply referred to as the "reinforcement device") according to the present invention, with reference to the drawings.

実施例１：
本発明に係るシャッターの補強装置１の実施例１を図１～図８を参照して、以下説明する。本明細書及び特許請求の範囲記載の発明では、シャッター２を設置する建物の屋内側を内側とし、屋外側を外側とする。また、外側から正面視して左右を左右とする。 Example 1:
A first embodiment of a shutter reinforcement device 1 according to the present invention will be described below with reference to Figures 1 to 8. In the present specification and claims, the indoor side of the building on which the shutter 2 is installed is defined as the inside, and the outdoor side is defined as the outside. In addition, the left and right sides when viewed from the outside are defined as the left and right.

なお、屋内にシャッター２を設置する場合（例として、防火のために廊下や室を区切るシャッター）もあるが、その場合は、シャッター２のいずれか一方の側を内側とし、他方の側を外側とする。 Note that there are cases where shutters 2 are installed indoors (for example, shutters that separate corridors or rooms for fire prevention purposes), in which case one side of shutter 2 is considered the inside and the other side is considered the outside.

（シャッターの全体構成）
一般的に、シャッター２を設置する建屋の出入口は、左右の垂直枠３（図１、図３（ａ）等参照）と頂部の水平枠（図示せず）を備え、門型に構成されている。左右の垂直枠３は、例えば、鉄骨等で形成されており、建物の構造体の一部であり、必ずしも本発明に係る補強装置１のために特別に設けたものではない。 (Overall shutter configuration)
Generally, the entrance of a building where the shutter 2 is installed is configured in a gate shape with left and right vertical frames 3 (see Fig. 1, Fig. 3(a), etc.) and a horizontal frame (not shown) at the top. The left and right vertical frames 3 are formed, for example, from steel frames, and are part of the structure of the building, and are not necessarily provided specifically for the reinforcing device 1 according to the present invention.

シャッター２は、図１、図３（ａ）等に示すように、左右のガイドレール６、ガイドレール６で案内されて昇降するスラット７、スラット７を巻き上げる巻き上げドラム８を備えている。左右のガイドレール６は、図２に示すように、それぞれ左右の垂直枠３の外面に沿って支持されるように、床面４上に起立して設置されている。 As shown in Figures 1, 3(a), etc., the shutter 2 is equipped with left and right guide rails 6, slats 7 that move up and down guided by the guide rails 6, and a winding drum 8 that winds up the slats 7. As shown in Figure 2, the left and right guide rails 6 are installed upright on the floor surface 4 so that they are supported along the outer surfaces of the left and right vertical frames 3, respectively.

なお、本発明は、巻き上げドラム８ではなく、屋内の天井等に沿ったレールにスライドさせるオーバースライディングドアのシャッターにも適用可能であるが、本実施例１では、以下、巻き上げドラム８を使用したシャッターで説明する。 The present invention can also be applied to an oversliding door shutter that slides on a rail along an indoor ceiling, rather than on a hoisting drum 8, but in this Example 1, the following description will focus on a shutter that uses a hoisting drum 8.

本明細書及び特許請求の範囲記載の発明では、シャッター２を設置する建物の屋外側から正面視して左右を左右とする。 In the invention described in this specification and claims, left and right are defined as left and right when viewed from the front from the outdoor side of the building in which the shutter 2 is installed.

（本発明の特徴的構成）
通常、シャッター２は、屋内側及び屋外側のいずれか一方側に垂直枠３を、他方側にガイドレール６を設ける。本発明においても、シャッター２は、設置する際に、建物構造に応じて、屋内側に左右の垂直枠３を、屋外側に左右のガイドレール６を設ける場合と、屋内側に左右のガイドレール６を、屋外側に左右の垂直枠３を、設ける場合がある。本発明は、上記いずれの場合にも適用できる。 (Characteristic configuration of the present invention)
Normally, the shutter 2 has a vertical frame 3 on either the indoor or outdoor side, and a guide rail 6 on the other side. In the present invention, too, when installing the shutter 2, depending on the building structure, there are cases where the left and right vertical frames 3 are provided on the indoor side and the left and right guide rails 6 on the outdoor side, and cases where the left and right guide rails 6 are provided on the indoor side and the left and right vertical frames 3 on the outdoor side. The present invention can be applied to either of the above cases.

特許請求の範囲では、「屋内側に垂直枠及びガイドレールのうちのいずれか一方の部材が設けられ、屋外側に垂直枠及びガイドレールのうちのいずれか他方の部材が設けられ、」という記載があるが、本実施例１では、屋内側に設けられた一方の部材を垂直枠３とし、屋外側に設けられた他方の部材をガイドレール６とした構成例において、以下説明する。 The claims state that "either one of the vertical frame and the guide rail is provided on the indoor side, and the other of the vertical frame and the guide rail is provided on the outdoor side," but in this Example 1, the following explanation will be given for an example configuration in which one of the components provided on the indoor side is the vertical frame 3, and the other component provided on the outdoor side is the guide rail 6.

なお、本発明に係る別の実施例として、屋内側に設けられた一方の部材をガイドレール６とし、屋外側に設けられた他方の部材を垂直枠３とした構成例もあるが、そのような別の実施例は、本実施例１の構成と比較して、屋内側の構成と屋外側の構成を、単に、互いに入れ替えただけの相違であるので、説明は省略する。 As another embodiment of the present invention, one of the components installed on the indoor side is a guide rail 6, and the other component installed on the outdoor side is a vertical frame 3. However, since this other embodiment differs from the configuration of this embodiment 1 only in that the indoor and outdoor configurations are swapped, a description of this embodiment will be omitted.

上記構成のシャッター２に付設する補強装置１は、図１～図４に示すように、主要部材として、次の部材を備えている。 The reinforcing device 1 attached to the shutter 2 configured as above has the following main components as shown in Figures 1 to 4.

（１）スラット７の最下部の座板１１に固定された左右の屋内側閂載置受け１３及び左右の屋外側閂載置受け１４（図３（ａ）～（ｃ）参照）。
（２）左右の垂直枠３にそれぞれ固定された左右の屋内側閂係止部材１５と、左右のガイドレール６にそれぞれに固定された左右の屋外側閂係止部材１６。
（３）左右の屋内側閂係止部材１５及び左右の屋外側閂係止部材１６によって、それぞれスラット７の内側及び外側で水平状態に保持されて、スラット７を内側及び外側から支持可能な屋内側閂２０及び屋外側閂２１。 (1) Left and right indoor latch holders 13 and left and right outdoor latch holders 14 fixed to the bottom panel 11 of the slat 7 (see Figures 3(a) to (c)).
(2) Left and right indoor latch members 15 fixed to the left and right vertical frames 3, respectively, and left and right outdoor latch members 16 fixed to the left and right guide rails 6, respectively.
(3) An indoor side latch 20 and an outdoor side latch 21 that are held horizontally on the inside and outside of the slat 7 by left and right indoor side latch engaging members 15 and left and right outdoor side latch engaging members 16, respectively, and can support the slat 7 from the inside and outside.

スラット７の最下部には、垂直断面形状が⊥形の座板１１（図３（ａ）～（ｃ）参照）が設けられている。屋内側閂載置受け１３及び屋外側閂載置受け１４は、スラット７の最下部の長手方向の複数の位置、本実施例１では、左右の位置（図１参照）に、固定されている。 The bottom of the slat 7 is provided with a seat plate 11 (see Figures 3(a) to (c)) with a ⊥-shaped vertical cross section. The indoor latch support 13 and the outdoor latch support 14 are fixed at multiple positions in the longitudinal direction of the bottom of the slat 7, in this embodiment at left and right positions (see Figure 1).

屋内側閂載置受け１３及び屋外側閂載置受け１４は、図３（ａ）～（ｃ）に示すように、その側面は略凹字形をしており、それぞれ屋内側閂２０及び屋外側閂２１を載置できるように、座板１１の左右の部分の内面及び外面に、ボルト２２で内側及び外側に向けて水平に張り出すように固定されている。 As shown in Figures 3(a) to (c), the indoor latch support 13 and the outdoor latch support 14 have roughly concave sides, and are fixed to the inner and outer surfaces of the left and right parts of the base plate 11 with bolts 22 so that they protrude horizontally inward and outward, so that the indoor latch 20 and the outdoor latch 21 can be placed on them.

屋内側閂２０及び屋外側閂２１は、強風を受けても、スラット７を内側及び外側から支持し（図７、図８（ｂ）参照）、スラット７が撓まされたり、まくられたりされないようにするシャッター２の補強部材として機能するものであり、風圧に対しても破損しない強靱な材料、例えば、鉄等の角パイプで形成されている。 The indoor side latch 20 and the outdoor side latch 21 support the slats 7 from the inside and outside even in strong winds (see Figures 7 and 8(b)), and function as reinforcing members for the shutter 2 to prevent the slats 7 from bending or rolling up. They are made of a strong material that will not break even under wind pressure, such as a square pipe made of iron.

そして、屋内側閂２０及び屋外側閂２１は、図１に示すように、それぞれシャッター２の横幅全体にわたって水平に延びるように設けられている。より詳細には、図２（ａ）に示すように、屋内側閂２０は左右の垂直枠３の内面間の間隔の長さと略同じ寸法に、屋外側閂２１は左右のガイドレール６の外面間の間隔の長さと略同じ寸法に形成されている。 The indoor side bar 20 and the outdoor side bar 21 are each provided to extend horizontally across the entire width of the shutter 2, as shown in Figure 1. More specifically, as shown in Figure 2(a), the indoor side bar 20 is formed to have approximately the same dimension as the distance between the inner surfaces of the left and right vertical frames 3, and the outdoor side bar 21 is formed to have approximately the same dimension as the distance between the outer surfaces of the left and right guide rails 6.

屋内側閂２０の左右の端面には、それぞれ、図２（ａ）、（ｂ）図３（ａ）、（ｂ）、図４（ａ）、（ｂ）に示すように、係合部として、屋内側係合片２３が下方に延びるように固定されている。屋内側係合片２３は、例えば鉄板等から形成されている。 As shown in Figures 2(a) and 2(b), 3(a) and 3(b), 4(a) and 4(b), an indoor side engaging piece 23 is fixed to the left and right end faces of the indoor side latch 20 so as to extend downward as an engaging part. The indoor side engaging piece 23 is formed from, for example, a steel plate.

屋外側閂２１の左右の端部の内面には、それぞれ、図１、図２（ａ）（ｂ）、図３（ａ）、（ｂ）、図４（ｃ）、（ｄ）に示すように、係合部として、屋外側係合片２４が下方に延びるように固定されている。屋外側係合片２４は、例えば鉄板等から形成されている。 As shown in Figures 1, 2(a) and (b), 3(a) and (b), 4(c) and (d), outdoor engagement pieces 24 are fixed to the inner surface of the left and right ends of the outdoor side bar 21 so as to extend downward as engagement parts. The outdoor engagement pieces 24 are formed, for example, from a steel plate.

左右の屋内側閂係止部材１５は、図３（ａ）に示すように、それぞれ左右の垂直枠３において、その上下方向略中央より若干下方の高さで、互いに対向する面に固定されている。そして、屋内側閂係止部材１５は、図２（ｂ）、図４（ａ）、（ｂ）に示すように、固定部２６と係止孔部２７から成る。 As shown in Figure 3(a), the left and right indoor latch locking members 15 are fixed to the opposing surfaces of the left and right vertical frames 3 at a height slightly below the vertical center. As shown in Figures 2(b), 4(a), and (b), the indoor latch locking members 15 consist of a fixing portion 26 and a locking hole portion 27.

屋内側閂係止部材１５の固定部２６は、垂直枠３に溶接や螺子止め等で固定され、鉄板等の部材から形成される。係止孔部２７は、屋内側閂２０の屋内側係合片２３を嵌合し係止する部分で、固定部２６の左右対向面に枠状に突出するように設けられている（図２（ｂ）参照）。 The fixing portion 26 of the indoor latch locking member 15 is fixed to the vertical frame 3 by welding, screws, etc., and is made of a material such as an iron plate. The locking hole portion 27 is a portion that fits and locks the indoor latch 23 of the indoor latch 20, and is provided so as to protrude in a frame shape on the opposing left and right surfaces of the fixing portion 26 (see Figure 2 (b)).

左右の屋外側閂係止部材１６は、図３（ａ）に示すように、それぞれ屋内側閂係止部材１５と同じ高さの位置で、左右のガイドレール６の外面に、溶接や螺子止め等で固定されている。屋外側閂係止部材１６は、図４（ｃ）、（ｄ）に示すように、固定部３０と係止孔部３１とから成る。 The left and right outdoor latch members 16 are fixed to the outer surfaces of the left and right guide rails 6 by welding, screws, etc. at the same height as the indoor latch members 15, as shown in Figure 3(a). The outdoor latch members 16 consist of a fixing portion 30 and a latch hole portion 31, as shown in Figures 4(c) and (d).

屋外側閂係止部材１６の固定部３０は、ガイドレール６に溶接や螺子止め等で固定され、鉄板等の部材から形成される。係止孔部３１は、屋外側閂２１の屋外側係合片２４を嵌合して係止する部分で、固定部３０の外面に枠状に突出するように設けられている（図２（ｂ）参照）。 The fixing portion 30 of the outdoor side latch locking member 16 is fixed to the guide rail 6 by welding, screws, etc., and is made of a material such as an iron plate. The locking hole portion 31 is a portion that fits and locks the outdoor side engagement piece 24 of the outdoor side latch 21, and is provided so as to protrude in a frame shape on the outer surface of the fixing portion 30 (see FIG. 2(b)).

なお、図７、図８に示す（図１、図３～図６では図示を省略する）ように、屋内側閂２０及び屋外側閂２１を、それぞれ左右において、座板１１の内側及び外側と、落下防止用ワイヤ３４で結んだ構成とすることが好ましい。落下防止用ワイヤ３４は、鋼線を撚り合わせて製造された鋼製ワイヤ等が使用される。 As shown in Figures 7 and 8 (not shown in Figures 1, 3 to 6), it is preferable to connect the indoor side latch 20 and the outdoor side latch 21 to the inside and outside of the seat plate 11 on the left and right sides, respectively, with fall prevention wires 34. The fall prevention wires 34 are made of steel wires made by twisting steel wires together, etc.

この落下防止用ワイヤ３４は、シャッター２が開いた状態において、万一、屋内側閂２０又は屋外側閂２１が上方から落下した際に宙吊りし、人への危害を防止する手段である。落下防止用ワイヤ３４の長さは、屋内側閂２０又は屋外側閂２１が落下しても人に危害を与えない高さで停止する長さを要する。 This fall prevention wire 34 is a means for suspending the indoor side bar 20 or the outdoor side bar 21 in mid-air to prevent injury to people if the indoor side bar 20 or the outdoor side bar 21 falls from above while the shutter 2 is open. The length of the fall prevention wire 34 must be long enough to stop the indoor side bar 20 or the outdoor side bar 21 at a height that will not cause injury to people even if they fall.

後記するが、シャッター２が閉じる途中で、屋内側閂２０及び屋外側閂２１は、屋内側閂係止部材１５及び屋外側閂係止部材１６によって、床面４より上方に停止するが、その停止位置は、スラット７を効果的に内側及び外側から支持する高さの位置である。 As will be described later, while the shutter 2 is closing, the indoor side latch 20 and the outdoor side latch 21 are stopped above the floor surface 4 by the indoor side latch locking member 15 and the outdoor side latch locking member 16, at a height position that effectively supports the slats 7 from both the inside and outside.

屋内側閂２０及び屋外側閂２１と座板１１を結ぶ落下防止用ワイヤ３４の長さは、屋内側閂２０又は屋外側閂２１が落下しても、人へ危害を与えない高さに宙吊りする長さとする必要があるが、シャッター２の頂部の高さと、屋内側閂係止部材１５及び屋外側閂係止部材１６の高さ、人の身長等を考慮して決めるべきであり、屋内側閂係止部材１５及び屋外側閂係止部材１６の高さが、例えば１．２ｍ程度の場合は、１．２ｍ程度の長さが好ましい。 The length of the fall prevention wire 34 connecting the indoor side latch 20 and outdoor side latch 21 to the base plate 11 must be long enough to suspend the indoor side latch 20 or outdoor side latch 21 at a height that will not cause harm to people if they fall, but this should be determined taking into consideration the height of the top of the shutter 2, the height of the indoor side latch locking member 15 and outdoor side latch locking member 16, the height of the person, etc. If the height of the indoor side latch locking member 15 and outdoor side latch locking member 16 is, for example, about 1.2 m, a length of about 1.2 m is preferable.

なお、シャッター２が開いている時は、落下防止用ワイヤ３４は、上方の位置から座板１１と屋内側閂２０及び屋外側閂２１の間で下方に吊り下がっているので、見栄えが悪い、収納しにくい等の理由で付設したくない場合は、落下防止用ワイヤ３４に替えて、図７（ｂ）に示すような閂落下防止構造４０を採用すればよい。 When the shutter 2 is open, the fall prevention wire 34 hangs downward from an upper position between the seat plate 11 and the indoor side latch 20 and the outdoor side latch 21. If you do not want to install it because it looks bad or is difficult to store, you can use a latch fall prevention structure 40 as shown in Figure 7 (b) instead of the fall prevention wire 34.

閂落下防止構造４０は、図７（ｂ）に示すように、屋内側閂載置受け１３及び屋外側閂載置受け１４に、それぞれ上方に向けた落下防止杆４１が固定されており、屋内側閂２０及び屋外側閂２１には、それぞれその上壁と底壁に落下防止杆４１が下方から嵌合される落下防止孔４２が形成されている。 As shown in FIG. 7(b), the bar fall prevention structure 40 has an upwardly facing fall prevention rod 41 fixed to the indoor bar mounting receiver 13 and the outdoor bar mounting receiver 14, and the indoor bar 20 and the outdoor bar 21 each have a fall prevention hole 42 formed in their top wall and bottom wall into which the fall prevention rod 41 fits from below.

（作用）
以上の構成から成る本発明に係るシャッターの補強装置１の作用について、以下説明する。図１、図３（ａ）は、屋内側閂２０及び屋外側閂２１が、屋内側閂載置受け１３及び屋外側閂載置受け１４に載置され、かつ屋内側閂係止部材１５及び屋外側閂係止部材１６に係合し移動が停止した状態である。 (Action)
The operation of the shutter reinforcement device 1 according to the present invention, which is configured as described above, will be described below. Figures 1 and 3(a) show the indoor bar 20 and the outdoor bar 21 placed on the indoor bar mounting receiver 13 and the outdoor bar mounting receiver 14, and engaged with the indoor bar locking member 15 and the outdoor bar locking member 16, and stopped moving.

具体的には、この状態は、シャッター２を開く場合は、停止屋内側閂２０及び屋外側閂２１が、屋内側閂係止部材１５及び屋外側閂係止部材１６に係合し停止している状態から、スラット７及び座板１１とともに下方から上昇してきた屋内側閂載置受け１３及び屋外側閂載置受け１４に載置され、上方に移動する瞬間の状態を示す。 Specifically, when the shutter 2 is opened, this state indicates the moment when the indoor side latch 20 and the outdoor side latch 21, which are engaged with the indoor side latch locking member 15 and the outdoor side latch locking member 16 and stopped, are placed on the indoor side latch mounting receiver 13 and the outdoor side latch mounting receiver 14 that have risen from below together with the slat 7 and the seat plate 11, and move upward.

又は、この状態は、シャッター２を閉じる場合は、停止屋内側閂２０及び屋外側閂２１が、屋内側閂載置受け１３及び屋外側閂載置受け１４に載置されて下降の途中に、屋内側閂係止部材１５及び屋外側閂係止部材１６に係合し、下降を停止した瞬間の状態をも示す。 Alternatively, when the shutter 2 is closed, this state also indicates the state at the moment when the indoor side latch 20 and the outdoor side latch 21 are placed on the indoor side latch mount 13 and the outdoor side latch mount 14 and engage with the indoor side latch locking member 15 and the outdoor side latch locking member 16 during the downward movement, stopping the downward movement.

仮に、前者の状態として、この状態からシャッター２を開くために、スラット７を上昇させいていくと、屋内側閂２０及び屋外側閂２１は、屋内側閂載置受け１３及び屋外側閂載置受け１４に載置されたまま上方へ移動し（図６（ａ）の上向き矢印参照）、図５、図６（ｂ）に示すように、シャッター２が開いた状態となると、巻き上げドラム８のすぐ下方で停止した退避位置となる。換言すると、この状態は、屋内側閂２０及び屋外側閂２１のいわば収納状態とも言える。 If, assuming the former state, the slats 7 are raised to open the shutter 2 from this state, the indoor bar 20 and the outdoor bar 21 move upward while still resting on the indoor bar mount 13 and the outdoor bar mount 14 (see the upward arrow in Figure 6(a)), and when the shutter 2 is in the open state as shown in Figures 5 and 6(b), they come to a retracted position stopped just below the winding drum 8. In other words, this state can be said to be a storage state for the indoor bar 20 and the outdoor bar 21.

シャッター２が開いた状態から閉じる場合は、スラット７を下降させていくと、屋内側閂２０及び屋外側閂２１は、屋内側閂載置受け１３及び屋外側閂載置受け１４に載置されたまま、下方へ移動する（図６（ａ）の下向き矢印参照）。 When the shutter 2 is closed from an open state, the slats 7 are lowered, and the indoor side latch 20 and the outdoor side latch 21 move downwards while remaining placed on the indoor side latch support 13 and the outdoor side latch support 14 (see the downward arrow in Figure 6 (a)).

屋内側閂２０及び屋外側閂２１は、スラット７とともに下方に移動していく途中、図１、図３（ａ）に示す状態となり、屋内側閂２０の左右の屋内側係合片２３が屋内側閂係止部材１５の係止孔部２７に係合し、屋外側閂２１の左右の屋外側係合片２４が屋外側閂係止部材１６の係止孔部３１に係合する。 As the indoor side latch 20 and the outdoor side latch 21 move downward together with the slat 7, they reach the state shown in Figures 1 and 3(a), with the left and right indoor side engagement pieces 23 of the indoor side latch 20 engaging with the engagement hole portion 27 of the indoor side latch locking member 15, and the left and right outdoor side engagement pieces 24 of the outdoor side latch 21 engaging with the engagement hole portion 31 of the outdoor side latch locking member 16.

そのために、屋内側閂２０及び屋外側閂２１は、屋内側閂係止部材１５及び屋外側閂係止部材１６に係合した位置で下方への移動は停止する。そして、屋内側閂係止部材１５及び屋外側閂係止部材１６は、屋内側閂２０及び屋外側閂２１を、図３（ａ）、（ｂ）に示す位置に置き去りにして、スラット７及び座板１１とともに、さらに下方へ移動し（図８（ａ）参照）、図７、図８（ｂ）に示すように閉じた状態となる。 As a result, the indoor side bar 20 and the outdoor side bar 21 stop moving downward at the position where they engage with the indoor side bar locking member 15 and the outdoor side bar locking member 16. Then, the indoor side bar locking member 15 and the outdoor side bar locking member 16 move further downward together with the slat 7 and the seat panel 11 (see FIG. 8(a)), leaving the indoor side bar 20 and the outdoor side bar 21 in the position shown in FIG. 3(a) and (b), and enter the closed state as shown in FIG. 7 and FIG. 8(b).

以上、要するに、屋内側閂２０及び屋外側閂２１は、それぞれ屋内側閂係止部材１５及び屋外側閂係止部材１６より上方のみにおいて、左右の屋内側閂載置受け１３及び左右の屋外側閂載置受け１４に載置された状態で昇降可能な構成である。 In summary, the indoor side bar 20 and the outdoor side bar 21 are configured to be able to be raised and lowered only above the indoor side bar locking member 15 and the outdoor side bar locking member 16, respectively, while placed on the left and right indoor side bar mounting receivers 13 and the left and right outdoor side bar mounting receivers 14.

図７、図８（ｂ）に示すシャッター２が閉じた状態では、屋内側閂２０及び屋外側閂２１は、上記のとおり、屋内側係合片２３及び屋外側係合片２４が、それぞれ屋内側閂係止部材１５の係止孔部２７及び屋外側閂係止部材１６の係止孔部３１に係合するので、スラット７の内側及び外側の近接位置で水平な状態で維持される。 When the shutter 2 is closed as shown in Figures 7 and 8(b), the indoor side latch 20 and the outdoor side latch 21 are maintained in a horizontal position close to the inside and outside of the slat 7 because the indoor side engaging piece 23 and the outdoor side engaging piece 24 engage with the engaging hole portion 27 of the indoor side latch engaging member 15 and the engaging hole portion 31 of the outdoor side latch engaging member 16, respectively, as described above.

従って、この状態で、強風に曝され、外側からスラット７に風圧がかかっても、屋内側閂２０は、屋内側閂係止部材１５からはずれてずれ落ちるようなことなく、内側からスラット７を支持するので、内側への捲れや破損を抑制する。 Therefore, even if the slats 7 are exposed to strong winds and wind pressure is applied to them from the outside in this state, the indoor latch 20 will not come off the indoor latch engaging member 15 and slip off, but will support the slats 7 from the inside, preventing them from being turned inward or damaged.

また、スラット７に対して、内側に向けて風圧を与えていた強風の向きが瞬間的に止んだり風向きが変わったりすると、スラット７が反動的に外側に移動しようとする場合があるが、このような場合でも、屋外側閂２１は、屋外側閂係止部材１６からはずれてずれ落ちるようなことなく、外側からスラット７を支持するので、外側への捲れや破損を抑制する。 In addition, if a strong wind that was exerting wind pressure inward on the slats 7 suddenly stops or changes direction, the slats 7 may try to move outward in reaction. Even in such a case, the outdoor side latch 21 supports the slats 7 from the outside without coming off the outdoor side latch engaging member 16 and slipping off, preventing them from being turned outward or damaged.

特に、本発明に係るシャッターの補強装置１は、上記のとおり、屋内側係合片２３及び屋外側係合片２４が、それぞれ屋内側閂係止部材１５の係止孔部２７及び屋外側閂係止部材１６の係止孔部３１に係合し、確実に係止された屋内側閂２０及び屋外側閂２１によって、スラット７は、内外から支持する構成を採用したので、スラット７が、内側及び外側にガタガタ揺すられようとしても、スラット片及びその結合部等が変形したり破損し、スラット７全体の破損を引き起こすようなことも抑制できる。 In particular, as described above, the shutter reinforcement device 1 of the present invention employs a configuration in which the indoor side engaging piece 23 and the outdoor side engaging piece 24 engage with the engaging hole portion 27 of the indoor side latch engaging member 15 and the engaging hole portion 31 of the outdoor side latch engaging member 16, respectively, and the slat 7 is supported from inside and outside by the securely engaged indoor side latch 20 and outdoor side latch 21. Therefore, even if the slat 7 is shaken violently inward and outward, the slat pieces and their joints are prevented from deforming or breaking, which would cause damage to the entire slat 7.

シャッター２を閉じた状態（図７、図８（ｂ）参照）から開く際には、スラット７が上昇する途中に、屋内側閂載置受け１３及び屋外側閂載置受け１４は、屋内側閂係止部材１５及び屋外側閂係止部材１６に係合した位置で停止している屋内側閂２０及び屋外側閂２１を、下方から載置して、スラット７ともに上昇させ（図６（ａ）の上向き矢印参照）、図５、図６（ｂ）に示すように、シャッター２が開いた位置まで移動させる。 When the shutter 2 is opened from the closed state (see Figures 7 and 8(b)), while the slat 7 is rising, the indoor side latch support 13 and the outdoor side latch support 14 support the indoor side latch 20 and the outdoor side latch 21, which are stopped in a position engaged with the indoor side latch locking member 15 and the outdoor side latch locking member 16, from below, and raise them together with the slat 7 (see the upward arrow in Figure 6(a)), moving them to the open position of the shutter 2 as shown in Figures 5 and 6(b).

なお、上記したとおり、屋内側閂２０及び屋外側閂２１は、屋内側閂載置受け１３及び屋外側閂載置受け１４に載置されるために、落下することはないものと考えられるが、万一、シャッター２が開いた状態において、想定外の何らかの原因で屋内側閂２０又は屋外側閂２１が落下すると、人に危害を与える事故も皆無とは言えない。 As mentioned above, the indoor latch 20 and the outdoor latch 21 are placed on the indoor latch support 13 and the outdoor latch support 14, so they are not expected to fall. However, if the indoor latch 20 or the outdoor latch 21 falls for some unexpected reason while the shutter 2 is open, it cannot be said that there is no risk of an accident resulting in injury to a person.

しかしながら、屋内側閂２０及び屋外側閂２１を、それぞれ座板１１の内側及び外側と、落下防止用ワイヤ３４で結んだ構成としておけば、仮に、屋内側閂２０又は屋外側閂２１が落下しても、落下した左右屋内側閂２０又は屋外側閂２１は、例えばワイヤ３４の長さを１．２ｍ程度とすれば、シャッター２の頂部から１．２ｍ程度の下方の位置で、落下防止用ワイヤ３４で宙吊りされ停止するので、人に危害を与えるようなことが防止される。 However, if the indoor side latch 20 and the outdoor side latch 21 are connected to the inside and outside of the base plate 11 with fall prevention wires 34, even if the indoor side latch 20 or outdoor side latch 21 falls, the fallen left and right indoor side latch 20 or outdoor side latch 21 will be suspended in mid-air by the fall prevention wires 34 and stop at a position about 1.2 m below the top of the shutter 2 if the length of the wires 34 is about 1.2 m, preventing injury to people.

なお、落下防止用ワイヤ３４は、簡単にフック等によって着脱可能な構成として、屋内側閂２０及び屋外側閂２１は、気象予報等で強風、竜巻等の生じる可能性のある期間だけ、屋内側閂載置受け１３及び屋外側閂載置受け１４の上に載置し、それ以外の時は、外しておくようなことも可能であるので、常時、見た目が悪いようなことも避けることができる。 The fall prevention wire 34 can be easily attached and detached using a hook or the like, and the indoor latch 20 and outdoor latch 21 can be placed on the indoor latch support 13 and outdoor latch support 14 only during periods when there is a possibility of strong winds, tornadoes, etc., as predicted by weather forecasts, and can be removed at other times, which avoids an unsightly appearance all the time.

本発明に係るシャッターの補強装置１は、上記のとおり、主要部材として、屋内側閂載置受け１３及び屋外側閂載置受け１４と、屋内側閂２０及び屋外側閂２１と、屋内側閂係止部材１５及び屋外側閂係止部材１６と、を備えているのみであるので、構成はきわめて簡単であり、補強装置１自体のコストは安価となる。 As described above, the shutter reinforcement device 1 of the present invention only comprises the indoor bar mounting receiver 13, the outdoor bar mounting receiver 14, the indoor bar 20, the outdoor bar 21, the indoor bar locking member 15, and the outdoor bar locking member 16 as its main components, so the structure is extremely simple and the cost of the reinforcement device 1 itself is low.

また、シャッター２に付設する作業は、屋内側閂載置受け１３及び屋外側閂載置受け１４は、それぞれスラット７の最下段の座板１１に固定し、屋内側閂２０及び屋外側閂２１は、それぞれ屋内側閂載置受け１３及び屋外側閂載置受け１４上に載置し、屋内側閂係止部材１５及び屋外側閂係止部材１６は、それぞれ左右の垂直枠３及びガイドレール６に固定すればよいので、新設のシャッター２だけでなく、特に、既設のシャッター２にも簡単な作業で、安価に取り付けることが可能となる。 In addition, when attaching to the shutter 2, the indoor bar mounting receiver 13 and the outdoor bar mounting receiver 14 are fixed to the bottom seat plate 11 of the slat 7, the indoor bar 20 and the outdoor bar 21 are placed on the indoor bar mounting receiver 13 and the outdoor bar mounting receiver 14, respectively, and the indoor bar locking member 15 and the outdoor bar locking member 16 are fixed to the left and right vertical frames 3 and guide rails 6, respectively. This makes it possible to attach the shutter 2 not only to newly installed shutters 2, but also to existing shutters 2 with simple and inexpensive work.

利用に際しては、屋内側閂２０及び屋外側閂２１は、補強装置１が付設された際に屋内側閂載置受け１３及び屋外側閂載置受け１４の上に載置しておけば、シャッター２を閉じる都度に、屋内側閂２０及び屋外側閂２１を取り付ける必要がないので、利用者は、何ら手間がかからないので、便利である。 When using the system, if the indoor side latch 20 and the outdoor side latch 21 are placed on the indoor side latch mount 13 and the outdoor side latch mount 14 when the reinforcement device 1 is installed, there is no need to attach the indoor side latch 20 and the outdoor side latch 21 every time the shutter 2 is closed, which is convenient and does not require any effort on the part of the user.

なお、落下防止用ワイヤ３４に替えて、図７（ｂ）に示すような閂落下防止構造４０を設ければ、屋内側閂２０及び屋外側閂２１を、それぞれその落下防止孔４２に、落下防止杆４１が下方から嵌合するように、屋内側閂載置受け１３及び屋外側閂載置受け１４の上に載置することで、屋内側閂２０及び屋外側閂２１が、屋内側閂載置受け１３及び屋外側閂載置受け１４から脱落することを防止できる。 In addition, if a latch fall prevention structure 40 as shown in FIG. 7(b) is provided instead of the fall prevention wire 34, the indoor latch 20 and the outdoor latch 21 can be placed on the indoor latch support 13 and the outdoor latch support 14 so that the fall prevention rod 41 fits from below into the fall prevention hole 42, respectively. This prevents the indoor latch 20 and the outdoor latch 21 from falling off the indoor latch support 13 and the outdoor latch support 14.

実施例２：
本発明に係るシャッターの補強装置の実施例２を図９～図１０を参照して、以下説明する。実施例２のシャッターの補強装置は、実施例１のシャッターの補強装置１と比較し、下記の異なる構成を除いて同じであるので、以下、異なる構成を中心に説明する。なお、実施例２において、実施例１と共通する構成は、実施例１と同じ符号を付与する。 Example 2:
A shutter reinforcement device according to a second embodiment of the present invention will be described below with reference to Figures 9 and 10. The shutter reinforcement device of the second embodiment is the same as the shutter reinforcement device 1 of the first embodiment except for the following different configurations, and therefore the different configurations will be mainly described below. In addition, in the second embodiment, the configurations common to the first embodiment are given the same reference numerals as the first embodiment.

また、実施例２のシャッターの補強装置は、符号を付してシャッターの補強装置５１とするが、シャッターの補強装置５１の全体図に符号「５１」を付すべきところ、全体の構成は実施例１と同じであるため図示は略したので、図９（ｂ）、図１０（ｂ）に示すように、異なる構成の部分にのみ符号「５１」を付した。 The shutter reinforcement device of Example 2 is designated by a reference numeral 51. However, while the reference numeral "51" should be given to the overall view of the shutter reinforcement device 51, as the overall configuration is the same as in Example 1, this is omitted from the illustration. Therefore, the reference numeral "51" is given only to the parts of the configuration that differ, as shown in Figures 9(b) and 10(b).

実施例１のシャッターの補強装置１と比較して実施例２のシャッターの補強装置５１が異なる構成は、次のとおりである。実施例１のシャッターの補強装置１は、図４（ａ）～（ｄ）に示すように、屋内側閂２０及び屋外側閂２１の係合部は、それぞれ屋内側係合片２３及び屋外側係合片２４であり、屋内側閂係止部材１５及び屋外側閂係止部材１６の係止部は、それぞれ係止孔部２７及び係止孔部３１である。 The shutter reinforcement device 51 of Example 2 differs from the shutter reinforcement device 1 of Example 1 in the following configuration. As shown in Figures 4(a) to (d), in the shutter reinforcement device 1 of Example 1, the engagement parts of the indoor side latch 20 and the outdoor side latch 21 are the indoor side engagement piece 23 and the outdoor side engagement piece 24, respectively, and the engagement parts of the indoor side latch locking member 15 and the outdoor side latch locking member 16 are the locking hole portion 27 and the locking hole portion 31, respectively.

これに対して、実施例２のシャッターの補強装置５１は、図９～図１０に示すように、屋内側閂係止部材及び屋外側閂係止部材の係止部は、それぞれ係止片５３及び係止片５４であり、屋内側閂２０及び屋外側閂２１の係合部は、それぞれ係合孔部５５及び係合孔部５６である。 In contrast, in the shutter reinforcement device 51 of the second embodiment, as shown in Figures 9 and 10, the locking portions of the indoor side latch locking member and the outdoor side latch locking member are the locking pieces 53 and 54, respectively, and the engagement portions of the indoor side latch 20 and the outdoor side latch 21 are the engagement hole portions 55 and 56, respectively.

以上、要するに、屋内側閂２０及び屋外側閂２１の係合部と、屋内側閂係止部材１５及び屋外側閂係止部材１６の係止部との構造が、実施例１に対して実施例２は、「孔と孔に嵌合する片」において、逆の構成を採用した。 In summary, the structure of the engagement portion of the indoor side latch 20 and the outdoor side latch 21, and the engagement portion of the indoor side latch locking member 15 and the outdoor side latch locking member 16 in Example 2 is the opposite of that in Example 1 in terms of "holes and pieces that fit into the holes."

具体的には、屋内側においては、図９（ａ）に示すように、左右の垂直枠３の対向面に、屋内側閂係止部材として屋内側係止片５３が固定されており、屋内側係止片５３は、固定部５７と水平段部５８を有し、垂直断面がクランク状であり、固定部５７を介して、垂直枠３に固定されている。屋内側閂２０の左右の端面には、係合部として、平面視で矩形枠状の係合孔部５５が固定されている。 Specifically, on the indoor side, as shown in FIG. 9(a), indoor side locking pieces 53 are fixed to the opposing surfaces of the left and right vertical frames 3 as indoor side latch locking members, and the indoor side locking pieces 53 have fixing parts 57 and horizontal steps 58, have a crank-shaped vertical cross section, and are fixed to the vertical frames 3 via the fixing parts 57. Engagement hole parts 55, which are rectangular frame-shaped in plan view, are fixed to the left and right end faces of the indoor side latch 20 as engagement parts.

屋内側閂２０をセットする場合は、図９（ｂ）に示すように、その係合孔部５５に屋内側閂係止部材の係止片５３が下から嵌合するようにして、係合孔部５５を係止片５３の水平段部５８に載置すれば、屋内側閂２０は、係止されて水平に保持される。 When setting the indoor latch 20, as shown in FIG. 9(b), the latch piece 53 of the indoor latch latch member fits into the latch hole 55 from below, and the latch hole 55 is placed on the horizontal step 58 of the latch piece 53, so that the indoor latch 20 is latched and held horizontally.

屋外側においても同様の構成であり、図１０（ａ）に示すように、左右のガイドレール６の屋外側の面に、屋外側閂係止部材として屋外側係止片５４が固定されており、屋外側係止片５４は、固定部５９と水平段部６０を有し、垂直断面がクランク状であり、固定部５９を介して、ガイドレール６に固定されている。屋外側閂２１の左右の端面には、係合部として、平面視で矩形枠状の係合孔部５６が固定されている。 The outdoor side has a similar configuration, and as shown in FIG. 10(a), outdoor locking pieces 54 are fixed to the outdoor surfaces of the left and right guide rails 6 as outdoor latch locking members. The outdoor locking pieces 54 have a fixing portion 59 and a horizontal step portion 60, have a crank-shaped vertical cross section, and are fixed to the guide rails 6 via the fixing portion 59. Engagement hole portions 56 that are rectangular frame-shaped in plan view are fixed to the left and right end faces of the outdoor latch 21 as engagement portions.

屋外側閂２１をセットする場合は、図１０（ｂ）に示すように、その係合孔部５６に屋外側閂係止部材の係止片５４が下から嵌合するようにして、係合孔部５６を係止片５４の水平段部６０に載置すれば、屋内側閂２１は、係止されて水平に保持される。 When setting the outdoor side latch 21, as shown in FIG. 10(b), the latch piece 54 of the outdoor side latch latch member fits into the latch hole 56 from below, and the latch hole 56 is placed on the horizontal step 60 of the latch piece 54, so that the indoor side latch 21 is latched and held horizontally.

実施例１のシャッターの補強装置１は、屋内側係合片２３及び屋外側係合片２４が下方に向いているために、利用者によっては若干見た目が悪く感じる場合もあるかもしれないが、実施例２のシャッターの補強装置５１は、屋内側係止片５３及び屋外側係止片５４が上方に向いているために、そのような感じは与えない。 The shutter reinforcement device 1 in Example 1 may look slightly unsightly to some users because the indoor side engaging piece 23 and the outdoor side engaging piece 24 face downwards, but the shutter reinforcement device 51 in Example 2 does not look that way because the indoor side retaining piece 53 and the outdoor side retaining piece 54 face upwards.

なお、この実施例２についても実施例１と同様に、屋内側に設けられた一方の部材をガイドレール６とし、屋外側に設けられた他方の部材を垂直枠３とした実施例もあるが、そのような実施例は、本実施例２の構成と比較して、屋内側の構成と屋外側の構成を、単に、互いに入れ替えただけの相違であるので、説明は省略する。 As with Example 1, there is also an example in which one of the components installed on the indoor side is a guide rail 6 and the other component installed on the outdoor side is a vertical frame 3. However, since such an example differs from the configuration of Example 2 in that the indoor and outdoor configurations are simply swapped, a description of this example will be omitted.

以上、本発明に係るシャッターの補強装置を実施するための形態を実施例に基づいて説明したが、本発明はこのような実施例に限定されることなく、特許請求の範囲記載の技術的事項の範囲内で、いろいろな実施例があることは言うまでもない。 The above describes the embodiment of the shutter reinforcement device according to the present invention, but it goes without saying that the present invention is not limited to such an embodiment, and there are various embodiments within the scope of the technical matters described in the claims.

本発明に係るシャッターの補強装置は、工場、倉庫、店舗、ガレージ等、いろいろな建物の出入口に設置したシャッターに付設することが適しており、特に既設のシャッターに簡単、安価に適用できるので、きわめて有用である。 The shutter reinforcement device of the present invention is suitable for installation on shutters installed at the entrances of various buildings such as factories, warehouses, stores, garages, etc., and is particularly useful as it can be easily and inexpensively applied to existing shutters.

１シャッターの補強装置
２シャッター
３垂直枠
４床面
６ガイドレール
７スラット
８巻き上げドラム
１１座板
１３屋内側閂載置受け
１４屋外側閂載置受け
１５屋内側閂係止部材
１６屋外側閂係止部材
２０屋内側閂
２１屋外側閂
２２ボルト
２３屋内側係合片
２４屋外側係合片
２６屋内側閂係止部材の固定部
２７屋内側閂係止部材の係止孔部
３０屋外側閂係止部材の固定部
３１屋外側閂係止部材の係止孔部
３４落下防止用ワイヤ
４０閂落下防止構造
４１落下防止杆
４２落下防止孔
５１シャッターの補強装置
５３屋内側係止片
５４屋外側係止片
５５屋内側閂の係合孔部
５６屋外側閂の係合孔部
５７屋内側係止片の固定部
５８屋内側係止片の水平段部
５９屋外側係止片の固定部
６０屋外側係止片の水平段部 1. Shutter reinforcement device
2. Shutter
3 Vertical frame 4 Floor surface
6 Guide rail
7 Slats
8 Winding drum
11 Seat
13 Indoor latch holder
14 Outdoor side latch holder
15 Indoor latch member
16 Outdoor side bar locking member
20 Indoor latch
21 Outdoor side latch 22 Bolt
23 Indoor side engagement piece
24 Outdoor engagement piece
26 Fixing portion of indoor latch locking member
27: Locking hole portion of the interior latch member
30: Fixing portion of outdoor side latch member
31: Locking hole portion of outdoor side latch locking member
34 Fall prevention wire 40 Bar fall prevention structure 41 Fall prevention rod 42 Fall prevention hole 51 Shutter reinforcement device 53 Indoor side locking piece 54 Outdoor side locking piece 55 Engagement hole portion of indoor side locking piece 56 Engagement hole portion of outdoor side locking piece 57 Fixing portion of indoor side locking piece 58 Horizontal step portion of indoor side locking piece 59 Fixing portion of outdoor side locking piece 60 Horizontal step portion of outdoor side locking piece

Claims

A shutter reinforcement device comprising left and right vertical frames which are part of the structural body of a building, and left and right guide rails which stand along the left and right vertical frames, with one of the vertical frames and the guide rails provided on the indoor side and the other of the vertical frame and the guide rails provided on the outdoor side, which is attached to a shutter having slats which move up and down guided by the guide rails, and which can support the slats from both the indoor side and the outdoor side,
An indoor side latch holder and an outdoor side latch holder are fixed to the indoor side and the outdoor side of the left and right parts of the bottom plate of the slat, respectively;
An indoor latch capable of supporting the slat on the indoor side;
an indoor side latch locking member attached to the one member provided on the indoor side and locking both ends of the indoor side latch to hold it horizontally;
An exterior side bar capable of supporting the slat on the exterior side;
an outdoor side bar locking member attached to the other member provided on the outdoor side and locking both ends of the outdoor side bar to hold it horizontally;
The indoor latch has engagement portions at both ends,
the indoor side latch locking member includes a fixing portion attached to the one of the members and a locking portion that locks the engaging portion of the indoor side latch;
The outdoor side bar has engagement portions at both ends thereof,
the outdoor side latch locking member includes a fixing portion attached to the other member and a locking portion that locks the engagement portion of the outdoor side latch;
A shutter reinforcement device characterized in that the indoor side bar and the outdoor side bar can be raised and lowered while placed on the indoor side bar mounting receiver and the outdoor side bar mounting receiver only at positions above the indoor side bar engaging member and the outdoor side bar engaging member, respectively.

The indoor side latch has an engagement piece fixed to each of the left and right ends of the indoor side latch, the engagement piece protruding downward.
The outdoor side bar has an engaging portion, and an outdoor side engaging piece protruding downward is fixed to each of the left and right ends of the outdoor side bar.
The locking portion of the indoor side latch member is a locking hole portion into which the indoor side engagement piece is fitted from above to lock the indoor side latching piece , the locking hole portion being attached to the one of the members via a fixing portion;
The shutter reinforcement device as described in claim 1, characterized in that the locking portion of the outdoor side latch member is a locking hole portion into which the outdoor side engaging piece is fitted from above to lock, and is attached to the other member via a fixing portion.

The engagement holes of the indoor side bar are fixed to the left and right ends of the indoor side bar as engagement portions of the indoor side bar,
The outdoor side bar has engagement holes fixed to the left and right ends of the outdoor side bar as engagement portions,
As a locking portion of the indoor side latching member, an indoor side latching piece that fits into and latches with the engagement hole of the indoor side latch from below is attached to the one of the members via a fixing portion,
The shutter reinforcement device as described in claim 1, characterized in that the outdoor side locking piece, which fits into the engagement hole of the outdoor side latch from below and locks it, is attached to the other member via a fixing portion as the locking portion of the outdoor side latch member.

A shutter reinforcement device according to claim 1, 2 or 3, characterized in that the indoor side latch and the outdoor side latch are each connected to the base plate via a fall prevention wire.

A shutter reinforcement device according to claim 1, 2 or 3, characterized in that a fall prevention rod is fixed facing upward to the indoor bar mounting receiver and the outdoor bar mounting receiver, and the indoor bar and the outdoor bar are each formed with a fall prevention hole into which the fall prevention rod fits.