JP2010121353A - Structure of take-up shaft for shutter - Google Patents

Structure of take-up shaft for shutter Download PDF

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JP2010121353A
JP2010121353A JP2008295688A JP2008295688A JP2010121353A JP 2010121353 A JP2010121353 A JP 2010121353A JP 2008295688 A JP2008295688 A JP 2008295688A JP 2008295688 A JP2008295688 A JP 2008295688A JP 2010121353 A JP2010121353 A JP 2010121353A
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shaft
outer cylinder
shutter
fixed
inner cylinder
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JP5438950B2 (en
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Takahiro Tsutsumi
貴洋 堤
Tomonori Yamashita
友則 山下
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Bunka Shutter Co Ltd
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Bunka Shutter Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To make possible easy assembly and replacement work and high-precision aligning of a support shaft with respect to a shaft body when assembling is performed. <P>SOLUTION: The structure of a take-up shaft for a shutter is provided with a cylindrical take-up shaft body 32 for the shutter and a pair of support shafts 34 which is fixed to the center of the shaft body 32 at both ends of the shaft body 32. The shaft body 32 is provided with an outer cylinder 36 and an inner cylinder 40. The outer cylinder 36 becomes a twisting part of a shutter curtain 26, and the inner cylinder 40, which is placed on the axis of the outer cylinder 36, is fixed in the center of a radial rib 38. One end of the radial rib 38 is fixed on the inner side of the outer cylinder 36, and the tip of the support shaft 34 can be projected from the end of the shaft body 32 in a state where the base part of the support shaft 34 is inserted and fixed to the inner cylinder 40. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

本発明は、シャッター用巻取シャフトに関し、特に大径中空の筒状シャフト本体の両端に突設される支持軸をシャフト本体に対して高精度に芯出しすることにより、シャフト本体の芯ぶれを防止できるようにしたシャッター用巻取シャフトの構造に関するものである。   The present invention relates to a shutter take-up shaft, and in particular, by centering a support shaft protruding from both ends of a large-diameter hollow cylindrical shaft body with respect to the shaft body with high accuracy, The present invention relates to a structure of a shutter take-up shaft that can be prevented.

防火防煙シャッター、あるいは、比較的大型で重量のあるシャッターでは、シャッターカーテンが巻胴と称される巻取用シャフトの外周に巻き取られる構造のものがある。このシャフトは、図５に示すように、大径であって内部が中空の筒状シャフト本体１と、シャフト本体１の両側に同心状に突設された支持軸２とからなっており、支持軸２はシャフト本体１の内径に合わせた外径の複数の円盤よりなる中子３の中心に溶接などによって予め固定され、シャフト本体１の端部から挿入し、シャフト本体１の外端部に位置する中子３の周縁を溶接することによって芯出しされ、支持軸２はシャフト本体１の端部に固定される（特許文献１参照）。   Some fire prevention smoke prevention shutters or relatively large and heavy shutters have a structure in which the shutter curtain is wound around the outer periphery of a winding shaft called a winding drum. As shown in FIG. 5, this shaft is composed of a cylindrical shaft body 1 having a large diameter and a hollow inside, and a support shaft 2 projecting concentrically on both sides of the shaft body 1. The shaft 2 is fixed in advance by welding or the like at the center of a core 3 made of a plurality of disks having an outer diameter matching the inner diameter of the shaft body 1, inserted from the end of the shaft body 1, and attached to the outer end of the shaft body 1. The center of the core 3 is positioned by welding, and the support shaft 2 is fixed to the end of the shaft body 1 (see Patent Document 1).

また、シャフト本体同士を接続する場合においても類似の構造が採用され、この場合には、両シャフト本体の接合部をまたがる支持軸を複数の円盤よりなる中子の中心に固定し、中子を両シャフト本体に挿通するとともに、シャフト本体の外側から中子周縁とシャフト本体間を溶接することにより、シャフト本体同士を接合する構造としたものもある（特許文献２参照）。
公開実用平成１−６２４９５号公報 特開２００１−２９５５７１号公報 In addition, a similar structure is adopted when connecting the shaft bodies to each other. In this case, the support shaft straddling the joint portion of both shaft bodies is fixed to the center of the core made of a plurality of disks, and the core is fixed. There is also a structure in which the shaft main bodies are joined to each other by being inserted into both shaft main bodies and welding the core periphery and the shaft main body from the outside of the shaft main bodies (see Patent Document 2).
Published Utility Heisei 1-62495 JP 2001-295571 A

しかしながら、この種の円盤形中子を用いた支持軸の取付構造にあっては、別部材を用い、また溶接などの加工を伴うため、組立作業が面倒であり、永久固定であるため、支持軸損耗時の交換性にも乏しい。また、同図５（ａ）に示すように、シャフト本体１の軸心０に対し、支持軸２の軸心が一致して取り付けられている場合には問題を生じないが、図５（ｂ）に示すように、シャフト本体１の軸心０に対し、支持軸２の軸心０’が、斜めに傾いて取り付けられるおそれがある。勿論、実際には図示のごとき極端なずれはないものの、特にシャフト本体１のスパンが長いと、両端でのぶれが大きくなり、支持軸２と軸受け部間に偏心回転が生じ、これにより軸受け箇所に異常な力が加わり、振動や騒音および偏摩耗を生じたり、耐久力の低下につながりかねないものとなる。   However, in the mounting structure of the support shaft using this type of disk-shaped core, since separate members are used and processing such as welding is involved, the assembly work is cumbersome and it is permanently fixed. The exchangeability at the time of shaft wear is also poor. Further, as shown in FIG. 5 (a), there is no problem when the axis of the support shaft 2 is attached to the axis 0 of the shaft body 1, but no problem occurs. ), The axis 0 ′ of the support shaft 2 may be attached to the axis 0 of the shaft body 1 at an angle. Of course, although there is actually no extreme deviation as shown in the figure, especially when the span of the shaft body 1 is long, the shake at both ends becomes large, and an eccentric rotation occurs between the support shaft 2 and the bearing portion. An extraordinary force is applied to this, which may cause vibration, noise and uneven wear, and may lead to a decrease in durability.

本発明は、以上の課題を解決するためになされたものであって、組立および交換作業とも簡単に行え、かつ組付け時には支持軸をシャフト本体に対して高精度に芯出し可能とすることにより、芯ぶれがなく、円滑な回転動作を得られるようにしたシャッター用巻取シャフトの構造を提供するもことを目的としている。   The present invention has been made to solve the above-described problems, and can be easily assembled and replaced, and at the time of assembly, the support shaft can be centered with high accuracy with respect to the shaft body. Another object of the present invention is to provide a shutter take-up shaft structure that is free from runout and can be smoothly rotated.

前記課題を解決するための手段を実施の形態に対応する図面を用いて説明する。
本発明のシャッター用巻き取りシャフト３０の構造は、筒状のシャッター用巻き取りシャフト本体３２と、シャフト本体３２の両端部において、シャフト本体３２の中心部に固定される１対の支持軸３４とを備えたシャッター用巻取シャフトの構造であって、前記シャフト本体３２は、シャッターカーテン２６の巻きつけ部分となる外筒３６と、該外筒３６の中心軸線上であって、一端を外筒３６の内側に固定化された放射状リブ３８の中心に固定される内筒４０とを備え、前記支持軸３４の基部が内筒４０に挿通固定された状態で支持軸３４の先端部がシャフト本体３２の端部より突出されていることを特徴とする。
なお、シャッターカーテンとしては、シートシャッターの他、多数のスラットを屈曲自在に接合したスラットカーテン、パイプ式カーテンなどの開閉体一般に採用可能であることは勿論である。 Means for solving the problems will be described with reference to the drawings corresponding to the embodiments.
The shutter take-up shaft 30 according to the present invention has a cylindrical shutter take-up shaft main body 32 and a pair of support shafts 34 fixed to the central portion of the shaft main body 32 at both ends of the shaft main body 32. The shaft body 32 includes an outer cylinder 36 that is a winding portion of the shutter curtain 26, and a central axis of the outer cylinder 36, and one end of the shaft main body 32 is disposed on the outer cylinder. An inner cylinder 40 fixed to the center of the radial rib 38 fixed to the inner side of the inner shaft 36, and the distal end portion of the support shaft 34 with the base portion of the support shaft 34 inserted and fixed in the inner cylinder 40. It protrudes from the edge part of 32. It is characterized by the above-mentioned.
As a shutter curtain, it is needless to say that, in addition to a seat shutter, it can be generally used for an open / close body such as a slat curtain in which a large number of slats are bent and a pipe curtain.

請求項２に示す本発明では、前記放射状リブ３８は、前記外筒３６の内側に、外筒３６のの直径方向に沿って設けられた複数の放射状リブ３８よりなり、該複数の放射状リブ３８の交叉中心に前記内筒４０が固定されていることを特徴とする。
放射状リブ３８の構成としては、外筒３６の内側に直径方向に固定される１本の放射状リブ３８の中心部に前記内筒４０を軸方向に設ける構成にしても良い。また、例えば、２本の放射状リブ３８を十字状に設け、又は、放射状リブ３８を三叉状に設けた構成としても良い。 In the present invention described in claim 2, the radial ribs 38 are composed of a plurality of radial ribs 38 provided along the diameter direction of the outer cylinder 36 inside the outer cylinder 36, and the plurality of radial ribs 38. The inner cylinder 40 is fixed to the crossing center of the above.
As a configuration of the radial rib 38, the inner cylinder 40 may be provided in the axial direction at the center of one radial rib 38 fixed in the diametrical direction inside the outer cylinder 36. Further, for example, two radial ribs 38 may be provided in a cross shape, or the radial ribs 38 may be provided in a three-pronged shape.

請求項３に示す本発明では、前記シャフト本体３２を構成する前記外筒３６、前記放射状リブ３８、及び前記内筒４０は、押し出し成形により一体に形成されていることを特徴とする。
シャフト本体３２は、金属例えばアルミの押し出し成形により一体に形成させることができ、プラスチックの押し出し成形により形成させることも可能である。 The third aspect of the present invention is characterized in that the outer cylinder 36, the radial rib 38, and the inner cylinder 40 constituting the shaft body 32 are integrally formed by extrusion molding.
The shaft body 32 can be integrally formed by extrusion molding of metal such as aluminum, and can also be formed by extrusion molding of plastic.

請求項４に示す本発明では、前記シャフト本体３２における前記外筒３６の両端部に、その軸線方向に直交して固定具Ｂ挿通用の挿通孔部４２を開口するとともに、前記内筒４０には、前記挿通孔部４２に対面する固定具Ｂの固定孔部４４を開口し、前記支持軸３４の基部を前記内筒４０に挿通した状態で、外筒３６を通じて固定具Ｂを内筒４０の固定孔部４４に挿入固定することにより、支持軸３４を内筒４０に固定するようにしたことを特徴とする。
挿通孔部４２は、外筒３６の両端部に、１個づつ設けてもよく、また、複数個づつ、例えば２個づつ設けても良い。固定具Ｂとしては、ビスやボルトねじを用いても良く、また、タッピングねじやリベットを用いても良い。固定具Ｂとして、通常のねじ又はリベットを用いる時には、支持軸３４に、予めねじ又はリベット固定孔４８を形成することが望ましい。 In the present invention shown in claim 4, at both ends of the outer cylinder 36 in the shaft body 32, the insertion holes 42 for inserting the fixture B are opened orthogonal to the axial direction, and Opens the fixing hole portion 44 of the fixing tool B facing the insertion hole portion 42, and inserts the fixing tool B into the inner tube 40 through the outer tube 36 in a state where the base portion of the support shaft 34 is inserted into the inner tube 40. The support shaft 34 is fixed to the inner cylinder 40 by being inserted into and fixed to the fixing hole portion 44 of the inner cylinder 40.
One insertion hole 42 may be provided at each end of the outer cylinder 36, or a plurality of insertion holes 42 may be provided, for example, two. As the fixture B, a screw or a bolt screw may be used, or a tapping screw or a rivet may be used. When a normal screw or rivet is used as the fixture B, it is desirable to form a screw or rivet fixing hole 48 in the support shaft 34 in advance.

請求項５に示す本発明では、前記シャフト本体３２における前記外筒３６の外周面の一部には、その長手方向に沿って凹溝部３６ａが形成され、該凹溝部３６ａに、前記固定具Ｂ挿通用の挿通孔部４２を開口するとともに、シャッターカーテン２６の巻取端を固定するようにしたことを特徴とする。
前記凹溝部３６ａ及び挿通孔部４２の存在により、固定具Ｂの挿通位置が明確となり、該挿通固定作業が容易となる。さらに、シャッターカーテン２６の吊元具あるいは固定具が外筒３６の外周面から突出しない。 In the present invention shown in claim 5, a concave groove portion 36a is formed along a longitudinal direction of a part of the outer peripheral surface of the outer cylinder 36 in the shaft body 32, and the fixing tool B is formed in the concave groove portion 36a. The insertion hole portion 42 for insertion is opened and the winding end of the shutter curtain 26 is fixed.
Due to the presence of the recessed groove portion 36a and the insertion hole portion 42, the insertion position of the fixing tool B becomes clear, and the insertion fixing operation becomes easy. Further, the hanging tool or the fixing tool of the shutter curtain 26 does not protrude from the outer peripheral surface of the outer cylinder 36.

請求項６に示す本発明では、前記内筒４０の外周面の一部には、その長手方向に沿って、突条よりなる肉厚部４０ａ，４０ｂが形成され、該肉厚部４０ａに前記固定孔部４４を開口したことを特徴とする。
このような肉厚部４０ａの存在により、固定具Ｂによる支持軸３４の固定が確実となる。 In the present invention shown in claim 6, on the part of the outer peripheral surface of the inner cylinder 40, thick portions 40a, 40b made of ridges are formed along the longitudinal direction, and the thick portion 40a The fixing hole 44 is opened.
The presence of such a thick portion 40a ensures the fixing of the support shaft 34 by the fixture B.

本発明によれば、円盤状中子のような別部材を介することなく、単に外筒の中心に軸方向に一体化された内筒に支持軸を差し込むだけで、シャフト本体の中心線と支持軸の中心線を高精度で一致させることができ、組立が簡単であり、芯ぶれや、これによって派生する不具合を防止できる。   According to the present invention, the center line of the shaft main body and the support can be supported by simply inserting the support shaft into the inner cylinder integrated in the axial direction at the center of the outer cylinder without using another member such as a disk-shaped core. The center line of the shaft can be matched with high accuracy, the assembly is simple, and the runout and the troubles derived therefrom can be prevented.

請求項３の発明によれば、外筒に対し、内筒を常に正確に軸芯方向に形成させることができ、従って、支持軸も軸方向に正確に位置決め固定させることができる。長尺なシャフト本体を連続成形し、必要な幅寸に切断して巻取シャフトを得ることができる。   According to the third aspect of the present invention, the inner cylinder can always be accurately formed in the axial direction relative to the outer cylinder, and therefore the support shaft can also be accurately positioned and fixed in the axial direction. A long shaft body can be continuously formed and cut into a required width to obtain a take-up shaft.

請求項４の発明によれば、支持軸の固定が確実となる。   According to the invention of claim 4, the support shaft is securely fixed.

請求項４又は請求項５の発明によれば、支持軸の固定作業が容易となる。   According to invention of Claim 4 or Claim 5, the fixing operation | work of a support shaft becomes easy.

請求項６の発明によれば、固定具の固定が安定し、これにより、支持軸の固定が一層安定確実となる。   According to the sixth aspect of the present invention, the fixing of the fixing tool is stabilized, and thereby the fixing of the support shaft becomes more stable and reliable.

図１は、本発明を適用したシャッター装置の概略正面図である。図において、シャッター装置２０は、建物壁面に形成された開口２２の上部に配置された格納ケース２４と、格納ケース２４から繰り出されるシャッターカーテン２６の両縁を昇降ガイドする左右一対のガイドレール２８とを備える。格納ケース２４内には、シャッター巻取用シャフト３０が設けられている。このシャフト３０は、所定のスパン長Ｌのシャッターカーテン２４の巻取用シャフト本体３２と、シャフト本体３２の左右に同一中心線上に一体化された支持軸３４とを備え、それぞれが軸受け部３５に回転可能に軸受けされている。シャッターカーテン２６としては、シートシャッターの他、多数のスラットを屈曲自在に接合したスラットカーテンなどが用いられる。   FIG. 1 is a schematic front view of a shutter device to which the present invention is applied. In the figure, the shutter device 20 includes a storage case 24 disposed above an opening 22 formed on a building wall surface, and a pair of left and right guide rails 28 that guides both edges of a shutter curtain 26 fed out of the storage case 24. Is provided. A shutter winding shaft 30 is provided in the storage case 24. The shaft 30 includes a winding shaft main body 32 of the shutter curtain 24 having a predetermined span length L, and support shafts 34 that are integrated on the same center line on the left and right of the shaft main body 32, and each has a bearing portion 35. It is rotatably supported. As the shutter curtain 26, in addition to a sheet shutter, a slat curtain in which a large number of slats are flexibly joined is used.

一方の支持軸３４の軸受け部３５からの突出端は、不図示の駆動機構に連繋し、シャフト本体３２とともに正逆転することにより、シャッターカーテン２６の巻取繰り出しを行い、繰り出し時にはガイドレール２８に沿って下降することにより、開口２２を閉鎖し、巻取時には格納ケース２４内に収容されることによって開口２２を開放するようになっている。   The projecting end of one support shaft 34 from the bearing portion 35 is linked to a drive mechanism (not shown) and rotates forward and backward together with the shaft main body 32 to wind and unwind the shutter curtain 26. The opening 22 is closed by descending along, and the opening 22 is opened by being housed in the storage case 24 during winding.

図２，３は、本発明の第１実施形態におけるシャフト本体３２およびシャフト本体３２と支持軸３４との結合関係を示す平面図、および、そのＡ−Ａ線断面図、図４（ａ），（ｂ）は同分解および組立状態の斜視図を示している。   2 and 3 are a plan view showing a shaft main body 32 and a coupling relationship between the shaft main body 32 and the support shaft 34 in the first embodiment of the present invention, and a cross-sectional view taken along the line A-A in FIG. (B) has shown the perspective view of the same disassembly and an assembly state.

各図において、シャフト本体３２は、アルミ成型型材からなるものであり、所定スパン長Ｌに形成された大径で所定肉厚に形成された外筒３６と、一端を外筒３６の内側に一体化され、かつ９０°間隔で十字形の交叉状に形成された断面放射状であって、外筒３６の長手方向に沿って略十字状に一体成形された４枚の放射状リブと３８と、外筒３６の中心、すなわち各放射状リブ３８の交叉位置にあって、外筒３６の長手方向に沿って一体成形された内筒４０とを備えている。内筒４０の中心は外筒３６の中心０に精度よく一致した状態に成形される。   In each figure, the shaft body 32 is made of an aluminum mold material, and has a large diameter and a predetermined thickness formed in a predetermined span length L, and one end integrated into the outer cylinder 36. And four radial ribs and 38 integrally formed in a cross shape along the longitudinal direction of the outer cylinder 36, and having a radial cross section formed in a cross shape at intervals of 90 °. An inner cylinder 40 is integrally formed along the longitudinal direction of the outer cylinder 36 at the center of the cylinder 36, that is, at the crossing position of the radial ribs 38. The center of the inner cylinder 40 is molded in a state that coincides with the center 0 of the outer cylinder 36 with high accuracy.

また、外筒３６の外周の一部（各図の上部側に現れる）には、その長手方向に沿って凹状の凹溝部３６ａが形成され、また内筒４０の凹溝部３６ａと対向する部位と、中心０を挟む対向位置の外周にはそれぞれ突条よりなる厚肉部４０ａ，４０ｂが突設されている。   A part of the outer periphery of the outer cylinder 36 (appears on the upper side of each figure) is formed with a concave groove part 36a along the longitudinal direction thereof, and a part facing the groove part 36a of the inner cylinder 40 and Thick portions 40a and 40b made of protrusions are provided on the outer periphery of the opposing positions across the center 0, respectively.

凹溝部３６ａの中央部における外筒３６の両端位置には、それぞれねじ固定具Ｂの頭部を挿通可能とした１対の大径孔よりなる挿通孔部４２が所定間隔をおいて貫通形成され、また、これと対面する位置における内筒４０の厚肉部４０ａにはこれを貫通して固定具Ｂの軸部挿通用の固定孔部４４が形成されている。なお、この厚肉部４０ａと対向位置の厚肉部４０ｂには、内筒４０の内側に連通する溝部４５が形成されており、内筒４０に挿通される支持軸３４との熱膨張差などを吸収するようになっている。また、該溝部４５を介して支持軸３４固定用のキーを打ち込むことができる。支持軸３４固定用のキーを打ち込む為のキー溝は、内筒４０の内周の適宜の位置に形成させることができる。   At both end positions of the outer cylinder 36 in the central portion of the concave groove portion 36a, insertion hole portions 42 each consisting of a pair of large-diameter holes through which the heads of the screw fixtures B can be inserted are formed at predetermined intervals. In addition, a fixed hole portion 44 for inserting the shaft portion of the fixture B is formed in the thick portion 40a of the inner cylinder 40 at a position facing it. A groove portion 45 communicating with the inside of the inner cylinder 40 is formed in the thick portion 40b opposite to the thick portion 40a, and a difference in thermal expansion from the support shaft 34 inserted through the inner cylinder 40, etc. To absorb. Further, a key for fixing the support shaft 34 can be driven through the groove 45. A key groove for driving a key for fixing the support shaft 34 can be formed at an appropriate position on the inner periphery of the inner cylinder 40.

これに対し、各支持軸３４は、金属、例えば鋼棒材からなり、内筒４０の内径に一致する外径であって、所定の長さに形成されたものであり、前記各固定孔部４４に対向する位置には、１対のねじ固定孔４８が形成されている。なお、図２，図４に向かって右側に現れる支持軸３４は、駆動機構に連繋するものであって、不図示の駆動機構を構成するギア、スプロケットなどにキー５０を介して連結すべくその軸端にキー溝３４ａを刻設している。   On the other hand, each support shaft 34 is made of a metal, for example, a steel bar, has an outer diameter that matches the inner diameter of the inner tube 40, and is formed to a predetermined length. A pair of screw fixing holes 48 is formed at a position facing 44. The support shaft 34 that appears on the right side in FIGS. 2 and 4 is linked to the drive mechanism, and is to be connected to a gear, sprocket, or the like constituting a drive mechanism (not shown) via the key 50. A key groove 34a is formed at the shaft end.

以上の構成において、図４（ａ）に示すシャフト本体３２に対して支持軸３４が分離されている状態から、これを内筒４０に差し込んで、その固定孔４８を固定孔部４４に一致させ、次いで挿通孔部４２を通じて固定具Ｂを固定孔部４４に差し込み、ドライバにより固定孔４８にねじ込めば、図３および図４（ｂ）に示すように、支持軸３４の軸心をシャフト本体３２の軸心に精度よく一致させた状態で組み付けを完了する。   In the above configuration, from the state where the support shaft 34 is separated from the shaft main body 32 shown in FIG. 4A, the support shaft 34 is inserted into the inner cylinder 40 so that the fixing hole 48 matches the fixing hole portion 44. Then, when the fixing tool B is inserted into the fixing hole 44 through the insertion hole 42 and screwed into the fixing hole 48 by a driver, as shown in FIGS. 3 and 4B, the shaft center of the support shaft 34 is connected to the shaft main body. The assembly is completed in a state where it is aligned with the 32 axial centers with high accuracy.

また、支持軸３４が損耗した場合には、固定具Ｂを取り外せば、簡単に取り外して、新規な支持軸３４を挿通してねじ止めすればよいため、その交換作業も簡単である。   Further, when the support shaft 34 is worn out, if the fixing tool B is removed, the support shaft 34 can be easily removed, and the new support shaft 34 can be inserted and screwed.

尚、図３において、シャフト本体３２の外周に巻きつけられるシャッターカーテン２６は、その固定端又は吊元具を凹溝部３６ａに位置させることにより、シャッターカーテン２６のシャフト本体３２への固定に起因する凹凸がなく、ほぼ渦巻き状に巻回することができ、巻回半径を最小とできる。   In FIG. 3, the shutter curtain 26 wound around the outer periphery of the shaft main body 32 is caused by fixing the shutter curtain 26 to the shaft main body 32 by positioning the fixed end or the suspending tool in the concave groove portion 36 a. There is no unevenness and the coil can be wound in a substantially spiral shape, and the winding radius can be minimized.

本発明に係るシャッター装置の全体構成を示す正面説明図である。It is front explanatory drawing which shows the whole structure of the shutter apparatus which concerns on this invention. 本発明の第１実施形態におけるシャフト本体と支持軸との取付関係を示す平面図である。It is a top view which shows the attachment relationship of the shaft main body and support shaft in 1st Embodiment of this invention. 図２のＡ−Ａ線における断面図である。It is sectional drawing in the AA of FIG. （ａ），（ｂ）は同第１実施形態におけるシャフト本体と支持軸との取付関係を示す分解および組立状態の斜視図である。(A), (b) is the disassembled and assembled perspective view which shows the attachment relationship of the shaft main body and support shaft in the 1st Embodiment. （ａ），（ｂ）は従来のシャフト本体と支持軸の取付関係およびその不具合を示す説明用断面図である。(A), (b) is sectional drawing for description which shows the attachment relation of the conventional shaft main body and a support shaft, and the malfunction.

符号の説明Explanation of symbols

２０ シャッターカーテン装置
２２ 開口
２４ 格納ケース
２６ シャッターカーテン
２８ 昇降ガイド
３０ シャッター巻取用シャフト
３２ シャフト本体
３４ 支持軸
３５ 軸受け部
３６ 外筒
３６ａ 凹溝部
３８ 放射状リブ
４０ 内筒
４０ａ，４０ｂ 厚肉部
４２ 挿通孔部
４４ 固定孔部
４５ 溝部
４８ 固定孔
Ｂ 固定具
Ｌ スパン長 20 Shutter curtain device 22 Opening 24 Storage case 26 Shutter curtain 28 Elevating guide 30 Shaft take-up shaft 32 Shaft body 34 Support shaft 35 Bearing portion 36 Outer tube 36a Concave groove portion 38 Radial rib 40 Inner tubes 40a and 40b Thick portion 42 Insertion Hole 44 Fixing hole 45 Groove 48 Fixing hole B Fixing tool L Span length

Claims (6)

シャッター用巻き取りシャフト本体と、シャフト本体の両端部において、シャフト本体の中心部に固定される１対の支持軸とを備えたシャッター用巻取シャフトの構造であって、
前記シャフト本体は、シャッターカーテンの巻きつけ部分となる外筒と、該外筒の中心軸線上であって、一端を外筒の内側に固定化された放射状リブの中心に固定される内筒とを備え、前記支持軸の基部が内筒に挿通固定された状態で支持軸の先端部がシャフト本体の端部より突出されていることを特徴とするシャッター用巻取シャフトの構造。 A shutter take-up shaft body comprising a shutter take-up shaft main body and a pair of support shafts fixed to the central portion of the shaft main body at both ends of the shaft main body,
The shaft main body includes an outer cylinder that is a winding portion of the shutter curtain, an inner cylinder that is on the center axis of the outer cylinder, and is fixed to the center of a radial rib that is fixed at one end to the inner side of the outer cylinder. The structure of the winding shaft for shutters, characterized in that the tip end portion of the support shaft protrudes from the end portion of the shaft body in a state where the base portion of the support shaft is inserted and fixed to the inner cylinder. 前記放射状リブは、前記外筒の内側に、外筒の直径方向に沿って設けられた複数の放射状リブよりなり、該複数の放射状リブの交叉中心に前記内筒が固定されていることを特徴とする請求項１に記載のシャッター用巻取シャフトの構造。   The radial rib includes a plurality of radial ribs provided along the diameter direction of the outer cylinder on the inner side of the outer cylinder, and the inner cylinder is fixed to the crossing center of the plurality of radial ribs. The structure of the shutter winding shaft according to claim 1. 前記シャフト本体を構成する前記外筒、前記放射状リブ、及び前記内筒は、押し出し成形により一体に形成されていることを特徴とする請求項１又は２に記載のシャッター用巻取シャフトの構造。   The structure of the shutter winding shaft according to claim 1 or 2, wherein the outer cylinder, the radial rib, and the inner cylinder constituting the shaft body are integrally formed by extrusion molding. 前記シャフト本体における前記外筒の両端部に、その軸線方向に直交して固定具挿通用の挿通孔部を開口するとともに、前記内筒には、前記挿通孔部に対面する固定具の固定孔部を開口し、前記支持軸の基部を前記内筒に挿通した状態で、外筒を通じて固定具を内筒の固定孔部に挿入固定することにより、支持軸を内筒に固定するようにしたことを特徴とする請求項１乃至３のいずれかに記載のシャッター用巻取シャフトの構造。   At both ends of the outer cylinder in the shaft main body, an insertion hole for inserting a fixing tool is opened at right angles to the axial direction, and the fixing hole for the fixing tool facing the insertion hole is formed in the inner cylinder. The support shaft is fixed to the inner cylinder by opening the portion and inserting and fixing the fixture to the fixing hole of the inner cylinder through the outer cylinder with the base portion of the support shaft inserted through the inner cylinder. The structure of the shutter winding shaft according to any one of claims 1 to 3. 前記シャフト本体における前記外筒の外周面の一部には、その長手方向に沿って凹溝部が形成され、該凹溝部に、前記固定具挿通用の挿通孔部を開口するとともに、シャッターカーテンの巻取端を固定するようにしたことを特徴とする請求項４に記載のシャッター用巻取シャフトの構造。   A concave groove portion is formed along a longitudinal direction of a part of the outer peripheral surface of the outer cylinder in the shaft main body, and an insertion hole portion for inserting the fixture is opened in the concave groove portion. The structure of the shutter winding shaft according to claim 4, wherein the winding end is fixed. 前記内筒の外周面の一部には、その長手方向に沿って、突条よりなる肉厚部が形成され、該肉厚部に前記固定孔部を開口したことを特徴とする請求項４又は５に記載のシャッター用巻取シャフトの構造。   5. A thick portion made of a ridge is formed along a longitudinal direction of a part of the outer peripheral surface of the inner cylinder, and the fixing hole portion is opened in the thick portion. Or the structure of the shutter winding shaft as described in 5.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074943A (en) * 2013-10-10 2015-04-20 文化シヤッター株式会社 Structure of shutter device and manufacturing method of winding shaft

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227187A (en) * 1997-02-14 1998-08-25 Pro Fuairu Kogyo Kk Winding mandrel of shutter slat
JP2000179262A (en) * 1998-12-18 2000-06-27 Tachikawa Blind Mfg Co Ltd Take-up shaft for roll blind

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10227187A (en) * 1997-02-14 1998-08-25 Pro Fuairu Kogyo Kk Winding mandrel of shutter slat
JP2000179262A (en) * 1998-12-18 2000-06-27 Tachikawa Blind Mfg Co Ltd Take-up shaft for roll blind

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015074943A (en) * 2013-10-10 2015-04-20 文化シヤッター株式会社 Structure of shutter device and manufacturing method of winding shaft

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