JPS5852066B2 - Forming method for horizontal members of curved handrails - Google Patents

Description

【発明の詳細な説明】 この発明は金属製組立手摺に関し、特に湾曲した手摺の
製作時、湾曲加工が面倒な水平部材、つまり笠木、笠木
底板、下枠（下桟）等の成形方法を改良し、湾曲手摺の
製作を著しく容易ならしめたものである。[Detailed Description of the Invention] This invention relates to a metal assembly handrail, and improves the method of forming horizontal members that are troublesome to curve, especially when manufacturing curved handrails, such as the cap, the bottom plate of the cap, and the lower frame (lower rail). This greatly simplifies the production of curved handrails.

ここに手摺と称するのは柵等、類似品を含むものとする
。The term "handrail" herein includes similar items such as fences.

金属製組立手摺の主流をなすアルミニウム合金押出材を
用いたものは、その美麗さ、組立の容易さにより近年、
広く普及している。In recent years, handrails made of extruded aluminum alloy, which is the mainstream of metal assembly handrails, have become popular due to their beauty and ease of assembly.
Widely popular.

しかし、それは直線上の量産品であり、その水平部材は
薄肉で断面形状が水平湾曲に適しないため湾曲手摺に加
工する事が面倒であった。However, it is a straight mass-produced product, and its horizontal members are thin and have a cross-sectional shape that is not suitable for horizontal curving, making it difficult to process them into curved handrails.

自由な曲線を画く湾曲手摺を製作する事が面倒では、そ
の用途も制限されるのであるが、この発明は、その問題
をほぼ解消するものである。If it is troublesome to manufacture a curved handrail that draws a free curve, its usage is limited, but this invention almost eliminates this problem.

その概要は下面が開放した笠木、その下面を塞ぐＪｆＥ
板、及び下枠の湾曲成形方法であって、上記笠木、底板
の押出成形時、両者の内部に、上記下枠を納めた時、そ
の横断方向の動きを制する突条、凹凸部、又は隔壁から
なる拘束手段を形成しておき、 湾曲加工時、上記笠木、底板内に下枠を納め、三者を一
体に拘束して湾曲加工することを特徴とする湾曲手摺の
水平部材の成形方法である。The outline is a Kasagi with an open bottom, and a JfE that closes the bottom.
A curve forming method for a board and a bottom frame, wherein when the capboard and the bottom plate are extruded, when the bottom frame is housed inside both, a protrusion, an uneven part, or A method for forming a horizontal member of a curved handrail, characterized in that a restraining means consisting of a partition is formed, and during the bending process, a lower frame is housed within the above-mentioned cap and bottom plate, and the three are restrained as one to perform the bending process. It is.

以下、図面によって説明を進める。The explanation will be explained below with reference to the drawings.

第１図は従来の組立手摺の笠木１と笠木底板２とを示す
。FIG. 1 shows a cap 1 and a cap bottom plate 2 of a conventional assembled handrail.

底板２はクリップ３を所々に当てネジにより笠木１に取
付けている。The bottom plate 2 is attached to the cap 1 with clips 3 placed here and there using screws.

下枠は笠木１に類似した形で、より小形である。The lower frame is similar in shape to Kasagi 1, but smaller.

湾曲手摺として組立てた外観を第９図に示す。Figure 9 shows the assembled appearance of the curved handrail.

多数の手摺子４が笠木底板２と下枠５をつないでいる。A large number of handrails 4 connect the Kasagi bottom plate 2 and the lower frame 5.

６は支柱である。6 is a support.

水平部材である笠木、笠木底板、下枠を設計図に合わせ
て湾曲するため、従来は夫々を特に厚肉に作り、開放面
には当板をし、回転引回げ装置、ベンディング、ローラ
等により必要に応じて局部加熱し、歪を修正しつつ湾曲
加工していた。In order to curve the horizontal members, Kasagi, Kasagi bottom plate, and lower frame according to the design drawings, conventionally each was made particularly thick, the open side was covered with a plate, and the rotating equipment, bending, rollers, etc. When necessary, local heating was applied to correct distortion while bending the material.

これは直線部では例えは内厚２ｒｒｒｍの部材を４〜５
ｍに厚く作る材料上の不利と、開放面の当板、そして加
工熟練者を要すること、所要時間が長い事、笠木と下枠
の湾曲が不一致になり易い事等の問題があった。In a straight section, for example, a member with an inner thickness of 2rrrm is
There were problems such as the disadvantages of the materials used to make it, such as the need for an open-sided backing plate, the need for skilled workers, the long time required, and the tendency for the curvature of the cap and the lower frame to mismatch.

本発明者はさきに笠木と下枠をほぼ同形、同寸法に設計
する事により両者を笠木底板を介して抱合せ湾曲する方
法を提案している。The present inventor has previously proposed a method in which the Kasagi and the lower frame are designed to have approximately the same shape and dimensions, and the two are joined together via the Kasagi bottom plate and curved.

これは従来の方法に比べ能率面、品質面ともに優れてい
るが、下枠の幅が笠木より狭いと適用できず、又、湾曲
加工の際に使用するローラの厚さく軸方向長さ）が大に
なる事、抱合せた三者の拘束が面倒な事等の問題が残さ
れていた。Although this method is superior to conventional methods in terms of efficiency and quality, it cannot be applied if the width of the lower frame is narrower than that of the Kasagi, and the thickness and axial length of the rollers used during the bending process Problems such as growing in size and the troublesome restraint of the three parties remained.

本発明は上記した本特許出願人の先行提案の問題点を解
消したのである。The present invention solves the above-mentioned problems of the prior proposal of the present patent applicant.

さて、この発明の実施例を第２図以下に示す。Now, an embodiment of this invention is shown in FIG. 2 and below.

いずれも笠木、笠木底板、下枠の三者を一体に組合わせ
た状態の断面を示す。Each figure shows a cross section of the Kasagi, the Kasagi bottom plate, and the lower frame combined together.

（アルミニウム合金押出成形材であるから全長にわたり
同一断面である。(Since it is an aluminum alloy extrusion molded material, the cross section is the same throughout the entire length.

）下面が開放した笠木１１と、笠木１１の下面を塞ぐ笠
木底板１２と、笠木１１、笠木底板１２を組合せた内部
に納まり、横断面方向の動きを拘束される下枠１３とか
らなっている。) Consists of a Kasagi 11 with an open bottom surface, a Kasagi bottom plate 12 that closes the bottom surface of the Kasagi 11, and a lower frame 13 that is housed inside the combination of the Kasagi 11 and Kasagi bottom plate 12 and restrains movement in the cross-sectional direction. .

第２〜４図の笠木１１は上部内面に下枠１３の脚端を受
入れ拘束する溝つき突条１４を有し、側壁内面に下枠１
３の水平部両端を挾み拘束する突条１５を有する。The cap 11 shown in FIGS. 2 to 4 has a grooved protrusion 14 on the inner surface of the upper part for receiving and restraining the leg end of the lower frame 13, and the lower frame 1 on the inner surface of the side wall.
It has a protrusion 15 that pinches and restrains both ends of the horizontal portion of 3.

もつとも突条１５は第１図の従来のものにもある笠木底
板取付用の突条を下枠１３の水平部拘束に利用したもの
である。Of course, the protrusion 15 is a protrusion for attaching a Kasagi bottom plate, which is also present in the conventional one shown in FIG. 1, and is used to restrain the horizontal portion of the lower frame 13.

なお第４図の突条１５ａだけはＬ形で、底板１２ａをネ
ジでなく、はめ込み結合にしている。It should be noted that only the protrusion 15a in FIG. 4 is L-shaped, and the bottom plate 12a is not connected by screws but by fitting.

下枠１３はみな単純な溝形であるが、第３図のものだけ
両脚部内側に夫々、補強用突条１６を付加している。All of the lower frames 13 have a simple groove shape, but only the one shown in FIG. 3 has reinforcing protrusions 16 added to the inner sides of both legs.

笠木底板１２は第２，３図のものが同形で、第４図のも
のは前述のように、はめ込み結合とするため、ネジに替
わる結合用突条１７にプラスチック製逆止羽根つきビー
ド１８を二つ折りにして被せである。The Kasagi bottom plate 12 in Figures 2 and 3 has the same shape, and the one in Figure 4 has a bead 18 with a plastic check blade on the connecting protrusion 17 instead of a screw, as described above, in order to make a fitting connection. Fold it in half and put it on.

この底板１２ａはまた中央付近をやや高くして、納めた
下枠１３の水平部を拘束させている。The bottom plate 12a is also made slightly higher near the center to restrain the horizontal portion of the lower frame 13 housed therein.

第２図の底板１２の突条１９は直接的に、そして第４図
の底板１２ａの突条１７は間接的に下枠１３．１３ａの
水平部を拘束している。The ridges 19 of the bottom plate 12 in FIG. 2 directly and the ridges 17 of the bottom plate 12a in FIG. 4 indirectly constrain the horizontal part of the lower frame 13.13a.

また第３図の突条２０は、その先端で下枠１３の脚部を
拘束している。Further, the protrusion 20 shown in FIG. 3 restrains the leg portion of the lower frame 13 at its tip.

第５図以下の実施例は、下枠１３が前の二側とは逆に脚
端を底板１２に当て、水平部を笠木１１に当てている。In the embodiments shown in FIG. 5 and below, the lower frame 13 has its leg ends against the bottom plate 12 and its horizontal portion against the cap 11, contrary to the two front sides.

第６図は下枠１３の水平部を二重にして変形防止をはか
ったもので、ふえた水平隔壁２１の外側に笠木１１の中
間水平突条２２が当っている。In FIG. 6, the horizontal portion of the lower frame 13 is doubled to prevent deformation, and the intermediate horizontal protrusion 22 of the cap 11 is in contact with the outside of the increased horizontal partition wall 21.

第７図は笠木１１に比較して下枠１３が小さいため、笠
木１１の上部を二重構造にした例で、水平隔壁２３中央
部に下枠１３水平部を受入れ拘束する凹部を設けている
。FIG. 7 shows an example in which the upper part of the Kasagi 11 has a double structure because the lower frame 13 is smaller than the Kasagi 11, and a recess is provided in the center of the horizontal partition wall 23 to receive and restrain the horizontal part of the lower frame 13. .

以上の実施例でも分るように、笠木１１と笠木底板１２
とを組合せた内部に下枠１３がうまく納まり、その横断
面方向の動きを拘束するような三者の形状、寸法であれ
ばよく、多様に設計できる。As can be seen in the above embodiments, the Kasagi 11 and the Kasagi bottom plate 12
A variety of designs are possible as long as the shape and dimensions of the three members are such that the lower frame 13 fits well inside the combination and restrains movement in the cross-sectional direction.

実際上、各部材の外観はあまり変えられないので、内部
に突条や隔壁を設けるとか壁面に凹凸部を作るなどして
拘束する事になる。In reality, the appearance of each member cannot be changed much, so it is necessary to restrict it by providing internal protrusions or partitions, or creating uneven parts on the wall surface.

なお湾曲加工時、屈曲用ローラに押されるのは笠木１１
だけで、その底板１２、下枠１３は笠木１１に取付は拘
束されているから湾曲するのである。During bending, it is Kasagi 11 that is pushed by the bending roller.
However, since the bottom plate 12 and the lower frame 13 are restrained from being attached to the cap 11, they are curved.

従って、その拘束部は屈曲力に耐えるものでなければな
らないが、そのための突条や隔壁は湾曲時の歪防止用補
強材の働きもするから、−石二鳥である。Therefore, the restraining portion must be able to withstand the bending force, but the protrusions and partition walls used for this purpose also serve as reinforcing materials to prevent distortion during bending, so they are two birds in a row.

湾曲加工時、上述の笠木、その底板、下枠の三者を一本
の棒状体として拘束するには、笠木１１と底板１２をネ
ジ２４により固定すればよいが、ネジ２４の締めはずし
が面倒なら、三者を組合せた外周を包帯状にビニールテ
ープ等で巻いてもよい。In order to restrain the above-mentioned cap, its bottom plate, and the bottom frame as one rod-shaped body during bending, it is sufficient to fix the cap 11 and the bottom plate 12 with screws 24, but tightening and removing the screws 24 is troublesome. If so, you may wrap the outer periphery of the combination of the three in a bandage shape with vinyl tape or the like.

そのため三者はネジを使わなくてもはめ合わせたけて一
応、組合わさる適合形状にしておく事が望ましい。Therefore, it is desirable that the three parts have a compatible shape that allows them to fit together without using screws.

テープ等を巻いて湾曲加工をすると、軟質のアルミニウ
ム合金材表面が傷つけられなくなる利点もある。Curving by wrapping tape or the like has the advantage that the surface of the soft aluminum alloy material will not be damaged.

湾曲加工は、いわゆる回転引き曲げ法、つまり、一本の
角材状にはめ合わせた水平部材三者の外形に合わせた回
転曲げ型に、同じく外形に合わせた締付型でもって、こ
れを固定し、回転曲げ型と可動受は型との間にはさんだ
水平部材三者を締付型を回転曲げ型のまわりに移動しつ
つ湾曲させる工法が望ましい。The bending process is done using the so-called rotary bending method, in which a rotary bending mold that matches the external shape of the three horizontal members fitted into a single square piece is fixed with a tightening mold that also matches the external shape. It is desirable to use a construction method in which three horizontal members are sandwiched between the rotary bending die and the movable receiver, and the clamping die is moved around the rotary bending die while bending.

しかし湾曲半径が大きな場合は通常のベンディング、ロ
ールに水平部材外形に合わせた丸駒を取付けて曲げるこ
とになる。However, if the bending radius is large, the normal bending method is performed by attaching a round piece that matches the external shape of the horizontal member to the roll.

もつとも湾曲加工装置は限定しない。However, the bending processing device is not limited.

湾曲加工が終ったら水平部材三者を−たん分離し、笠木
１１と底板１２を再び締合わせ、取出した下枠１３は第
８図のように手摺子４を介して底板１２下方に固定する
。After the bending process is completed, the three horizontal members are separated, the cap 11 and the bottom plate 12 are fastened together again, and the removed lower frame 13 is fixed below the bottom plate 12 via the handrail 4 as shown in FIG.

固定方法は周知ゆえ説明を略す。Since the fixing method is well known, the explanation will be omitted.

この発明は組立式金属手摺の水平部材三者を組合せ、角
管状に一体化できる関係形状とし、横断面方向の動きを
相互に拘束させる事により、三者を同時に湾曲加工でき
るようにした。This invention combines three horizontal members of a prefabricated metal handrail, forms a relational shape that can be integrated into a rectangular tube shape, and mutually restricts movement in the cross-sectional direction, thereby making it possible to curve the three members at the same time.

三者を組合せ、相互に拘束させる構造にしたため、単独
の笠木、下枠のような開口部がなくなり、開口部に補強
当板を行う必要がなくなり、多くの補強骨、隔壁が加わ
った効果により湾曲による歪が減じ、従来のように特に
肉厚の水平部材を用いる必要もなくなった。By combining the three parts and creating a structure where they are mutually restrained, there is no need for an opening like a separate cap or bottom frame, and there is no need to provide reinforcement plates for the opening, and the effect of adding many reinforcing bones and bulkheads Distortion due to curvature is reduced, and there is no need to use particularly thick horizontal members as in the past.

三者同時湾曲の能率上の効果も大きいが、また品質的に
、三個の水平部材の中心線の湾曲が常に一致する効果も
見逃せない。Simultaneous curving of the three members has a great efficiency effect, but in terms of quality, the effect of always having the center line curvatures of the three horizontal members coincide cannot be overlooked.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は従来の笠木と笠木底板の横断面図、第２〜７図
はこの発明の実施例６種の水平部材三者を組合せた状態
の横断面図、第８図は湾曲後、下枠を取出し手摺子と共
に手摺に組立てた状態の横断面図、第９図は組立てた湾
曲手摺の斜視図で、図中、１１は笠木、１２は笠木底板
、１３は下枠を示す。Figure 1 is a cross-sectional view of a conventional Kasagi and Kasagi bottom plate, Figures 2 to 7 are cross-sectional views of a combination of three horizontal members of six types according to the present invention, and Figure 8 is a lower FIG. 9 is a cross-sectional view of the assembled handrail together with the frame and handrail, and FIG. 9 is a perspective view of the assembled curved handrail.

Claims (1)

【特許請求の範囲】 １ 下面が開放した笠木、その下面を塞ぐ底板、及び下
枠の湾曲成形方法であって、 上記笠木、底板の押出成形時、両者の内部に、上記下枠
を納めた時、その横断方向の動きを制する突条、凹凸部
、又は隔壁からなる拘束手段を形成しておき、 湾曲加工時、上記笠木、底板内に下枠を納め、三者を一
体に拘束して湾曲加工することを特徴とする湾曲手摺の
水平部材の成形方法。[Scope of Claims] 1. A method for curve-molding a cap with an open bottom surface, a bottom plate that closes the bottom surface, and a bottom frame, wherein the bottom frame is housed inside both during extrusion molding of the cap and bottom plate. During bending, a restraining means consisting of protrusions, uneven parts, or partition walls is formed to control the movement in the transverse direction, and during bending, the lower frame is housed within the cap and bottom plate, and the three are restrained together. A method for forming a horizontal member of a curved handrail, characterized in that the horizontal member is curved.