JP2004316706A - Rivet device and expansion scaffold board using the same - Google Patents

Rivet device and expansion scaffold board using the same Download PDF

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Publication number
JP2004316706A
JP2004316706A JP2003108692A JP2003108692A JP2004316706A JP 2004316706 A JP2004316706 A JP 2004316706A JP 2003108692 A JP2003108692 A JP 2003108692A JP 2003108692 A JP2003108692 A JP 2003108692A JP 2004316706 A JP2004316706 A JP 2004316706A
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Japan
Prior art keywords
rivet
scaffold plate
members
profile
scaffold
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JP2003108692A
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Japanese (ja)
Inventor
Yasuhiro Murata
安弘 村田
Hiroaki Ono
浩明 大野
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Hasegawa Kogyo Co Ltd
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Hasegawa Kogyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a rivet device capable of maintaining parallelness between structural members even in the case of repeatedly using scaffold boards, for example expansion scaffold boards, without generating large shake over the whole of the scaffold boards, and to provide an expansion scaffold board using the same. <P>SOLUTION: This rivet 13 is formed of a hollow rivet main body 21 and a mandrel 22. Both of members 9 and 10 are fastened to each other by a flange part 21b and a plastic-deformed shaft part 21a of the rivet main body 21 by pulling up the mandrel 22. Peripheral edge of a rivet insert hole 18 formed in a side surface of one member 9 opposite to the overlapped side thereof is provided with a projection part 20 to be engaged with the plastic-deformed shaft part 21a of the rivet 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
この発明は、2つの部材をリベットを使用して締結する際に有用なリベット止め装置およびこれを用いた伸縮足場板に関する。
【0002】
【従来の技術】
1対の足場板構成部材からなり、各足場板構成部材が、幅方向に間隙をおいて並列状に並べられた横断面略方形の形材と、一端部に設けられた形材結合用兼端部閉鎖用カバーと、他端部に設けられた形材結合用兼案内用枠部材とから構成されるとともに、第1足場板構成部材の形材が第2足場板構成部材の形材間に長さ方向スライド自在に介在されている伸縮足場板は、従来より知られており、単独で仮設足場などで使用されたり、両端部に脚が設けられて台馬として使用されたりしている(特許文献1および特許文献2参照)。
【0003】
従来の伸縮足場板では、各足場板構成部材の各形材の上下壁と各カバーおよび各枠部材の上下壁とは、それぞれリベット止めされている。
【0004】
【特許文献1】
特開平8−28034号公報
【0005】
【特許文献2】
特開2001−182313号公報
【0006】
【発明が解決しようとする課題】
上記従来の伸縮足場板では、新品時には、リベット止めによって部材同士が所定の締結力で結合されているので、カバーに対して、形材が動くことはないが、繰り返し使用により、リベットが形材のリベット挿通孔内で回転可能となるのに伴い、カバーに対する形材の動きが生じ、この結果、形材同士の平行が保持されなくなったり、足場板全体が横方向に大きく揺れるという問題があった。
【0007】
この発明の目的は、例えば、上記伸縮足場板において使用した場合に、足場板を繰り返し使用しても、形材同士の平行が保持され、足場板全体が大きく揺れることがないリベット止め装置およびこれを用いた伸縮足場板を提供することにある。
【0008】
【課題を解決するための手段および発明の効果】
この発明によるリベット止め装置は、リベット挿通用孔をそれぞれ有し互いに重ねられた第1の部材と第2の部材とをリベットを用いて締結するための装置であって、いずれか一方の部材の反重ね側面のリベット挿通用孔周縁に、リベット本体の塑性変形させられた軸部に係合する凸部が設けられていることを特徴とするものである。
【0009】
リベットは、軸部およびその一端部に設けられたフランジ部からなる中空状リベット本体と、リベット本体の他端部に当接するフランジ部を有しリベット本体に挿通されたマンドレルとからなり、マンドレルを引き上げることにより、マンドレルが中間部で破断するとともにリベット本体のフランジ部と塑性変形させられた軸部とによって両部材が締結されるものとされることが好ましい。リベット本体およびマンドレルの材質は、締結される部材に応じて、アルミニウム、スチール、ステンレス鋼などから適宜選択される。このリベットは、ポップリベット、ブラインドリベットなどと称されている公知のもので、変形前には、リベット本体のフランジ部の径は、リベット挿通用孔の径より大きくなされ、また、マンドレルのフランジ部の径は、リベット挿通用孔の径より小さくなされている。そして、リベット本体のフランジ部を一方の部材に押し当ててリベット本体の軸部を両部材のリベット挿通用孔に挿通した後、専用ツールを使用してマンドレルを引き上げていくと、リベット本体の軸部が偏平状に変形させられ、両部材は、リベット本体のフランジ部と変形した軸部とによって挟持される。この際の挟持力は所定の値に設定され、リベット本体のフランジ部および軸部との間に軸方向の力が作用した状態で、両部材が締結される。
【0010】
リベット本体は、締結される部材がアルミニウムかステンレス鋼かなどにかかわらず、アルミニウム等の軟らかい材質が好ましく、このようにすることにより、リベットの軸部が被締結部材の凸部になじみやすく、締結力も向上する。
【0011】
リベット止め部分に繰り返し力が掛かると、リベットの軸方向の力は次第に減少し、従来のリベット止めでは、リベットの軸を中心とする部材間の回転を阻止することができなくなっていたが、この発明によるリベット止め装置では、いずれか一方の被締結部材の凸部とリベット本体の軸部とが係合していることにより、このような回転を防止することができ、その締結力も保持される。
【0012】
凸部が形成されている部材が押出形材製とされており、凸部は、形材の全長にわたって形成されていることが好ましい。このようにすると、凸部の長さ方向の所定位置にリベット挿通用孔をあけると、リベット挿通用孔の周縁にリベットの軸部と係合する凸部が存在することになり、形材の長さ方向の任意の位置において容易にリベット止めを実施することができる。
【0013】
この発明による伸縮足場板は、1対の足場板構成部材からなり、各足場板構成部材が、幅方向に間隙をおいて並列状に並べられた横断面略方形の形材と、一端部に設けられた形材結合用兼端部閉鎖用カバーと、他端部に設けられた形材結合用兼案内用枠部材とから構成されるとともに、第1足場板構成部材の形材が第2足場板構成部材の形材間に長さ方向スライド自在に介在されている伸縮足場板であって、各足場板構成部材の各形材の上下壁と各カバーおよび各枠部材の上下壁とが、上記のリベット止め装置によってそれぞれ固定されていることを特徴とするものである。
【0014】
この発明による伸縮足場板は、仮設足場などで使用されるほか、伸縮足場板の前後両端部に折り畳み可能な伸縮脚を設けることにより、台馬と称される作業台として使用されることもある。
【0015】
この発明の伸縮足場板によると、各足場板構成部材の各形材の上下壁と各カバーおよび各枠部材の上下壁とが、それぞれ上記のリベット止め装置によって固定されているので、形材がリベットを中心として回転することが防止され、したがって、繰り返し使用しても、形材同士の平行が常に保持され、足場板全体が横方向に大きく揺れることがない。
【0016】
【発明の実施の形態】
この発明の実施の形態を、以下図面を参照して説明する。以下の説明において、前後、左右および上下は、図1を基準とし、同図の左右を左右、同図の手前側を前、向こう側を後というものとする。
【0017】
図1から図3までは、この発明によるリベット止め装置(12)を伸縮足場板(1)に適用した形態を示している。
【0018】
伸縮足場板(1)は、長手方向(左右方向)に相対移動可能な第1および第2足場板構成部材(2)(3)と、第2足場板構成部材(3)に設けられて第1足場板構成部材(2)に対する第2足場板構成部材(3)の長手方向移動を使用時に阻止し伸縮作業時に許容するロック装置(5)とからなる。
【0019】
第1足場板構成部材(2)は、1つの形材(6)の幅分の間隔をおいて前後に複数列並べられた並列状形材(6)(6A)と、並列状形材(6)(6A)の左端部に設けられた形材結合用兼端部閉鎖用カバー(7)と、並列状形材の右端部に設けられた形材結合用兼案内用枠部材(8)とからなり、第2足場板構成部材(3)は、1つの形材(9)の幅分の間隔をおいて前後に複数列並べられた並列状形材(9)(9A)と、並列状形材(9)(9A)の右端部に設けられた形材結合用兼端部閉鎖用カバー(10)と、並列状形材(9)の左端部に設けられた形材結合用兼案内用枠部材(11)とからなる。
【0020】
各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁は、カバー(7)(10)および枠部材(8)(11)にそれぞれその端部をリベット装置(12)により締結されている。
【0021】
第1足場板構成部材(2)の枠部材(8)は、第1足場板構成部材(2)の前縁部に配置された形材(6A)との間に第2足場板構成部材(3)の前縁部に配置された形材(9A)が通過できる間隔をあけるように形成されており、第2足場板構成部材(3)の枠部材(11)は、第2足場板構成部材(3)の後縁部に配置された形材(9)との間に第1足場板構成部材(2)の後縁部に配置された形材(6)が通過できる間隔をあけるように形成されている。第1足場板構成部材(2)の枠部材(8)の後縁部には、第2足場板構成部材(3)の後縁部に配置された形材(9)を案内するガイド部(8a)が設けられており、第2足場板構成部材(3)の枠部材(11)の前縁部には、第1足場板構成部材(2)の前縁部に配置された形材(6A)を案内するガイド部(11a)が設けられている。これにより、2つの足場板構成部材(2)(3)は、一方の足場構成部材(2)の形材(6)(6A)と他方の足場構成部材(3)の形材(9)(9A)とが若干の間隙をおいて対向した状態で、これらの対向面および枠部材(8)(11)の内面を案内面とし、互いに長手方向に移動可能とされている。
【0022】
各形材(6)(6A)(9)(9A)は、アルミニウム合金製の押出形材であり、第1足場板構成部材(2)の前縁部形材(6A)以外の全ての形材(6)(9)(9A)は、断面が方形の中空状とされている。
【0023】
各足場板構成部材(2)(3)のカバー(7)(10)は、幅方向を押し出し方向とする押出形材で形成されており、これらのカバー(7)(10)は、同じ形状であり、第2足場板構成部材(3)のカバー(10)について、図2を参照して説明する。同図に拡大して示しているように、カバー(10)は、上壁(14a)、下壁(14b)および垂直壁(14c)からなる横断面コの字状の形材差込み部(14)を有しており、形材差込み部(14)の上壁(14a)および下壁(14b)には、前後方向(足場板の幅方向)にのびるそれぞれ2列のリベット貫通用凹所(15)が形成されている。この凹所(15)の左右幅は、リベット(13)のフランジ部の径にほぼ等しく形成されており、これにより、リベット止め時のリベット(13)の足場板長さ方向の位置決めがしやすいものとなっている。形材差込み部(14)の垂直壁(14c)には、上下2つのタッピンねじ挿入部(16)が形成されており、また、上壁(14a)の垂直壁(14c)近くの下面および下壁(14b)の垂直壁(14c)近くの上面には、形材(9)の端面の位置決めを行う凸条(17)が形成されている。
【0024】
ロック装置(5)は、ピンを使用したものであり、第2足場板構成部材(3)の枠部材(11)の前壁を貫通したピン(5)が第1足場板構成部材(2)の前縁部形材(6A)の前壁に所定間隔で設けられた複数の長さ調整用孔(6b)のいずれかに挿通されることにより、足場板(1)が所定の長さで固定されている。ロック装置としては、その他の公知のものが適宜使用可能である。
【0025】
各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁とカバー(7)(10)および枠部材(8)(11)とを締結しているリベット止め装置(12)は、すべて同じ構成であり、図2および図3を参照して、第2足場板構成部材(3)の形材(9)とカバー(10)とを締結しているリベット止め装置(12)について説明する。
【0026】
リベット止め装置(12)は、第1の部材としての形材(9)と第2の部材としてのカバー(10)とを締結するもので、リベット(13)と、形材(9)およびカバー(10)にそれぞれ設けられたリベット挿通用孔(18)(19)と、形材(9)およびカバー(10)のうちのいずれか一方(この実施形態では形材(9))の反重ね側面(すなわち、形材(9)の上壁の下面および下壁の上面のそれぞれ)のリベット挿通用孔(18)周縁に設けられかつリベット(13)の塑性変形させられた軸部(21a)に係合する凸部(20)とからなる。
【0027】
形材(9)の凸部(20)は、押出方向(長さ方向)の全長にわたって設けられており、リベット挿通用孔(18)を長さ方向任意の位置に設けた場合に、常にリベット挿通用孔(18)周縁に凸部(20)が存在するようになっている。
【0028】
リベット(13)は、軸部(21a)およびその一端部に設けられたフランジ部(21b)からなるアルミニウム製中空状リベット本体(21)と、リベット本体(21)の他端部に当接するフランジ部(22a)を有しリベット本体(21)に挿通されたアルミニウム製マンドレル(22)とからなり、リベット本体(21)のフランジ部(21b)をカバー(10)の上面に押し付けた状態でマンドレル(22)の軸部(22b)を上方に引き上げることにより、リベット本体(21)とマンドレル(22)との間に作用する力が所定値を越えた際に、マンドレル(22)がリベット本体(21)内にある環状溝(図示略)の部分で破断するとともに、リベット本体(21)のフランジ部(21b)と塑性変形させられた軸部(21a)とによって被締結部材が固着されるブラインドリベットとされている。
【0029】
上記の伸縮足場板(1)によると、新品時には、各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各カバー(7)(10)の上下壁とおよび各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各枠部材(8)(11)の上下壁とは、形材(6)(6A)(9)(9A)の凸部(20)付近にリベット止め時の力が集中することによって、リベット挿通用孔(18)周縁の締結力が大きくなり、強固に固定されている。そして、リベット止め部分に繰り返し力が掛かると、リベット(13)の軸方向の力が次第に減少し、従来のリベット止めでは、リベットの軸を中心とする部材間の回転を阻止することができなくなっていたが、このリベット止め装置(12)によると、形材(6)(6A)(9)(9A)の凸部(20)とリベット本体(21)の軸部(21a)とが係合していることにより、このような回転が防止される。この結果、長期間繰り返し使用しても、形材(6)(6A)(9)(9A)同士の平行が常に保持され、足場板構成部材(2)(3)が平行を保ったまま足場板全体が横方向に大きく揺れることもない。
【0030】
なお、図1には、各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各カバー(7)(10)の上下壁とおよび各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各枠部材(8)(11)の上下壁とのリベット止めがそれぞれ1列だけで行われている例を示しているが、各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各カバー(7)(10)の上下壁とのリベット止めをそれぞれ2列で行い、回転防止効果をより高めるようにしてももちろんよい。
【0031】
また、上記においては、伸縮足場板(1)を例にとってリベット止め装置(12)を説明したが、上記リベット止め装置(12)は、伸縮足場板(1)以外の種々の部材同士の締結に使用することが可能である。
【図面の簡単な説明】
【図1】この発明による伸縮足場板を概略的に示す斜視図である。
【図2】この発明によるリベット止め装置の分解斜視図である。
【図3】この発明によるリベット止め装置の拡大断面図である。
【符号の説明】
(1) 伸縮足場板
(2) 第1足場板構成部材
(3) 第2足場板構成部材
(6)(6A) 形材
(7)(10) カバー
(8)(11) 枠部材
(9)(9A) 形材
(12) リベット止め装置
(13) ブラインドリベット(リベット)
(18)(19) リベット挿通用孔
(20) 凸条
(21) リベット本体
(21a) 軸部
(21b) フランジ部
(22) マンドレル
(22a) フランジ部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a riveting device useful for fastening two members using rivets and a telescopic scaffold plate using the same.
[0002]
[Prior art]
Each scaffold plate component is composed of a pair of scaffold plate components. Each of the scaffold plate component members has a substantially square cross-sectional shape which is arranged in parallel with a gap in the width direction, and a shape material combining / combining member provided at one end. An end closing cover and a frame connecting and guiding frame member provided at the other end are formed, and the first scaffold plate component is formed between the second scaffold plate component members. A telescopic scaffold plate interposed slidably in the longitudinal direction is conventionally known, and is used alone as a temporary scaffold, or used as a stand with legs provided at both ends. (See Patent Documents 1 and 2).
[0003]
In the conventional telescopic scaffold board, the upper and lower walls of each profile of each scaffold board constituent member and the upper and lower walls of each cover and each frame member are riveted.
[0004]
[Patent Document 1]
JP-A-8-28034
[Patent Document 2]
JP 2001-182313 A
[Problems to be solved by the invention]
In the above-mentioned conventional telescopic scaffold plate, when new, the members are joined with a predetermined fastening force by riveting, so that the profile does not move with respect to the cover. As the rotatable member becomes rotatable in the rivet insertion hole, the profile moves with respect to the cover. As a result, there is a problem that the parallelism of the profile is not maintained and the entire scaffold plate swings largely in the lateral direction. Was.
[0007]
An object of the present invention is to provide a riveting device and a riveting device in which, for example, when used in the above-described telescopic scaffold plate, even if the scaffold plate is repeatedly used, the parallel shape members are maintained, and the entire scaffold plate does not greatly shake. An object of the present invention is to provide a telescopic scaffold plate using the same.
[0008]
Means for Solving the Problems and Effects of the Invention
A rivet setting device according to the present invention is a device for fastening a first member and a second member, each having a rivet insertion hole, which are overlapped with each other, using a rivet. The rivet insertion hole on the opposite side surface of the rivet is provided with a projection on the periphery of the rivet insertion hole, the projection engaging with a plastically deformed shaft portion of the rivet body.
[0009]
The rivet is composed of a hollow rivet main body including a shaft portion and a flange portion provided at one end thereof, and a mandrel having a flange portion abutting on the other end of the rivet main body and being inserted through the rivet main body. By pulling up, it is preferable that the mandrel be broken at the intermediate portion and both members be fastened by the flange portion of the rivet body and the plastically deformed shaft portion. The material of the rivet body and the mandrel is appropriately selected from aluminum, steel, stainless steel, and the like according to the member to be fastened. This rivet is a known one called a pop rivet, a blind rivet, or the like. Before deformation, the diameter of the flange portion of the rivet body is made larger than the diameter of the rivet insertion hole, and the flange portion of the mandrel is formed. Is smaller than the diameter of the rivet insertion hole. Then, after pressing the flange portion of the rivet body against one member and inserting the shaft portion of the rivet body into the rivet insertion hole of both members, the mandrel is pulled up using a special tool, and the shaft of the rivet body is removed. The part is deformed flat, and both members are sandwiched between the flange part of the rivet body and the deformed shaft part. The clamping force at this time is set to a predetermined value, and the two members are fastened in a state where an axial force acts between the flange portion and the shaft portion of the rivet body.
[0010]
Regardless of whether the member to be fastened is aluminum or stainless steel, the rivet body is preferably made of a soft material such as aluminum. In this manner, the shaft of the rivet is easily adapted to the convex portion of the member to be fastened, and the fastening is performed. Power also improves.
[0011]
When a repeated force is applied to the riveted portion, the axial force of the rivet gradually decreases, and with conventional riveting, rotation between members around the rivet axis cannot be prevented. In the riveting device according to the present invention, such rotation can be prevented and the fastening force is maintained because the projection of one of the members to be fastened and the shaft of the rivet body are engaged. .
[0012]
The member on which the convex portion is formed is made of an extruded profile, and the convex portion is preferably formed over the entire length of the profile. In this way, when a rivet insertion hole is made at a predetermined position in the length direction of the projection, a projection that engages with the rivet shaft is present around the periphery of the rivet insertion hole, and the shape Riveting can be easily performed at any position in the length direction.
[0013]
The telescopic scaffold plate according to the present invention is composed of a pair of scaffold plate constituent members, each of which is arranged side by side with a gap in the width direction, and a cross section having a substantially rectangular cross section, and one end portion. It is composed of the provided cover for joining and closing the shape member provided at the other end, and the frame member for joining and guiding the shape material provided at the other end. A stretchable scaffold plate interposed slidably in the length direction between the shape members of the scaffold plate component members, wherein upper and lower walls of each profile member of each scaffold plate component member and upper and lower walls of each cover and each frame member. , Each being fixed by the above-mentioned riveting device.
[0014]
The telescopic scaffold according to the present invention is used as a temporary work platform or the like, and may be used as a work table called a horse by providing foldable telescopic legs at both front and rear ends of the telescopic scaffold. .
[0015]
According to the telescopic scaffold plate of the present invention, since the upper and lower walls of each profile of each scaffold plate constituent member and the upper and lower walls of each cover and each frame member are fixed by the riveting device, respectively, the profile is Rotation around the rivet is prevented, so that even when used repeatedly, the profiles are always kept parallel to each other, and the entire scaffolding plate does not largely swing laterally.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. In the following description, front and rear, left and right, and up and down are based on FIG. 1, the left and right in FIG. 1 are left and right, the near side in the figure is front, and the other side is rear.
[0017]
FIGS. 1 to 3 show a form in which the riveting device (12) according to the present invention is applied to a telescopic scaffold (1).
[0018]
The telescopic scaffold plate (1) is provided on first and second scaffold plate component members (2) and (3) that are relatively movable in the longitudinal direction (left-right direction) and the second scaffold plate component member (3). A lock device (5) for preventing the second scaffold plate component (3) from moving in the longitudinal direction with respect to the first scaffold plate component (2) during use and allowing expansion and contraction work.
[0019]
The first scaffold plate constituent member (2) includes a plurality of parallel-shaped members (6) and (6A) arranged in a plurality of rows before and after at intervals of a width of one member (6), and a parallel-shaped member (6). 6) A cover (7) for joining and closing the profile provided at the left end of (6A), and a frame member (8) for joining and guiding the profile provided at the right end of the parallel-shaped profiles. The second scaffold plate constituent member (3) is composed of parallel shaped members (9) (9A) arranged in a plurality of rows before and after at intervals of the width of one shaped member (9). A cover (10) provided at the right end of the shaped members (9) and (9A) and a cover (10) provided at the left end of the parallel shaped members (9). And a guide frame member (11).
[0020]
The upper and lower walls of each of the structural members (6), (6A), (9), and (9A) of each scaffold plate constituent member (2) and (3) correspond to the covers (7) and (10) and the frame members (8) and (11), respectively. Its end is fastened by a rivet device (12).
[0021]
The frame member (8) of the first scaffold plate component (2) is located between the frame member (6A) disposed at the front edge of the first scaffold plate component (2) and the second scaffold plate component ( The frame member (11) of the second scaffold plate component (3) is formed so as to leave an interval through which the profile (9A) arranged at the front edge of (3) can pass. There is an interval between the profile (9) disposed at the rear edge of the member (3) and the profile (6) disposed at the rear edge of the first scaffold plate component (2). Is formed. At the rear edge of the frame member (8) of the first scaffold plate component (2), a guide portion (9) for guiding a profile (9) arranged at the rear edge of the second scaffold plate component (3). 8a) is provided, and at the front edge of the frame member (11) of the second scaffold plate component (3), a profile () arranged at the front edge of the first scaffold plate component (2) is provided. 6A) is provided with a guide portion (11a). As a result, the two scaffold plate components (2) and (3) are composed of the profiles (6) and (6A) of one scaffold component (2) and the profiles (9) and (9) of the other scaffold component (3). 9A) are opposed to each other with a slight gap therebetween, and these opposing surfaces and the inner surfaces of the frame members (8) and (11) are used as guide surfaces, and are mutually movable in the longitudinal direction.
[0022]
Each of the profiles (6), (6A), (9), and (9A) is an extruded profile made of an aluminum alloy, and has all shapes except the front edge profile (6A) of the first scaffold plate component (2). The members (6), (9), and (9A) are hollow with a rectangular cross section.
[0023]
The covers (7) and (10) of each scaffold plate constituent member (2) and (3) are formed of an extruded member whose extruding direction is the width direction, and the covers (7) and (10) have the same shape. The cover (10) of the second scaffold plate component (3) will be described with reference to FIG. As shown in an enlarged manner in the drawing, the cover (10) has a U-shaped cross section (14) composed of an upper wall (14a), a lower wall (14b) and a vertical wall (14c). ), And the upper wall (14a) and the lower wall (14b) of the profile insertion portion (14) have two rows of rivet penetration recesses (two in each direction) extending in the front-rear direction (the width direction of the scaffold plate). 15) is formed. The left and right widths of the recess (15) are formed to be substantially equal to the diameter of the flange portion of the rivet (13), whereby it is easy to position the rivet (13) in the length direction of the scaffold plate when riveting. It has become something. Upper and lower two tapping screw insertion portions (16) are formed on the vertical wall (14c) of the section inserting portion (14), and the lower surface and the lower portion of the upper wall (14a) near the vertical wall (14c) are formed. On the upper surface of the wall (14b) near the vertical wall (14c), a ridge (17) for positioning the end face of the profile (9) is formed.
[0024]
The locking device (5) uses a pin, and the pin (5) penetrating the front wall of the frame member (11) of the second scaffold plate component (3) is used as the first scaffold plate component (2). The scaffold plate (1) has a predetermined length by being inserted into one of a plurality of length adjusting holes (6b) provided at predetermined intervals in the front wall of the front edge section (6A). Fixed. Other known lock devices can be used as appropriate.
[0025]
Fastening the upper and lower walls of each section member (6) (6A) (9) (9A) of each scaffold plate constituent member (2) (3) with the cover (7) (10) and the frame members (8) (11) The riveting devices (12) are all of the same construction, and, with reference to FIGS. 2 and 3, fasten the section (9) of the second scaffold plate component (3) and the cover (10). The riveting device (12) is described.
[0026]
The riveting device (12) is for fastening a profile (9) as a first member and a cover (10) as a second member, and includes a rivet (13), a profile (9) and a cover. The rivet insertion holes (18) and (19) respectively provided in (10) and the one of the profile (9) and the cover (10) (the profile (9) in this embodiment) are overlaid. Shafts (21a) provided on the periphery of the rivet insertion hole (18) on the side surface (that is, on the lower surface of the upper wall and the upper surface of the lower wall, respectively) and of the rivet (13). And a projection (20) that engages with the projection.
[0027]
The projection (20) of the profile (9) is provided over the entire length in the extrusion direction (length direction), and when the rivet insertion hole (18) is provided at an arbitrary position in the length direction, the rivet is always provided. A projection (20) is present on the periphery of the insertion hole (18).
[0028]
The rivet (13) is composed of an aluminum hollow rivet body (21) composed of a shaft part (21a) and a flange part (21b) provided at one end thereof, and a flange abutting the other end of the rivet body (21). And an aluminum mandrel (22) having a portion (22a) and inserted through the rivet body (21). The mandrel is in a state in which the flange portion (21b) of the rivet body (21) is pressed against the upper surface of the cover (10). By pulling the shaft portion (22b) of (22) upward, when the force acting between the rivet body (21) and the mandrel (22) exceeds a predetermined value, the mandrel (22) is moved to the rivet body ( 21) The flange (21b) of the rivet body (21) and the shaft (21a) plastically deformed while being broken at an annular groove (not shown) in the inside of 21). There is a blind rivet which the fastening member is fixed by.
[0029]
According to the above-mentioned telescopic scaffold plate (1), when new, the upper and lower walls of each of the shaped members (6) (6A) (9) (9A) of each scaffold plate constituent member (2) (3) and each cover (7) The upper and lower walls of (10), and the upper and lower walls of each frame member (6) (6A) (9) (9A) and each frame member (8) (11) of each scaffold plate constituent member (2) (3) With the wall, the force at the time of riveting is concentrated near the convex portion (20) of the profile (6) (6A) (9) (9A), so that the fastening force at the periphery of the rivet insertion hole (18) is large. It is firmly fixed. When a repeated force is applied to the riveted portion, the axial force of the rivet (13) gradually decreases, and the conventional riveting cannot prevent rotation between members around the rivet axis. According to the riveting device (12), the projection (20) of the profile (6) (6A) (9) (9A) engages with the shaft (21a) of the rivet body (21). This prevents such rotation. As a result, even after repeated use for a long period of time, the parallelism of the profiles (6), (6A), (9), and (9A) is always maintained, and the scaffold plate components (2) and (3) are maintained in parallel. The whole board does not shake greatly in the lateral direction.
[0030]
In FIG. 1, the upper and lower walls of each of the structural members (6), (6A), (9), and (9A) of the scaffold plate constituent members (2) and (3) and the upper and lower walls of each of the covers (7) and (10) are shown. And riveting of the upper and lower walls of each of the structural members (6), (6A), (9), and (9A) of the scaffold plate constituent members (2) and (3) and the upper and lower walls of each of the frame members (8) and (11). Although an example in which only one row is used is shown, the upper and lower walls of each section (6) (6A) (9) (9A) of each scaffold plate constituent member (2) (3) and each cover (7) The riveting with the upper and lower walls in (10) may be performed in two rows each to increase the rotation preventing effect.
[0031]
Further, in the above description, the riveting device (12) has been described by taking the stretchable scaffold plate (1) as an example, but the riveting device (12) is used for fastening various members other than the stretchable scaffold plate (1). It is possible to use.
[Brief description of the drawings]
FIG. 1 is a perspective view schematically showing a telescopic scaffold according to the present invention.
FIG. 2 is an exploded perspective view of the riveting device according to the present invention.
FIG. 3 is an enlarged sectional view of the riveting device according to the present invention.
[Explanation of symbols]
(1) Telescopic scaffold board (2) First scaffold board component (3) Second scaffold board component (6) (6A) Profile (7) (10) Cover (8) (11) Frame member (9) (9A) Profile (12) Riveting device (13) Blind rivet (rivet)
(18) (19) Rivet insertion hole (20) Ridge (21) Rivet body (21a) Shaft (21b) Flange (22) Mandrel (22a) Flange

Claims (4)

リベット挿通用孔(18)(19)をそれぞれ有し互いに重ねられた第1の部材(9)と第2の部材(10)とをリベット(13)を用いて締結するための装置であって、いずれか一方の部材(9)の反重ね側面のリベット挿通用孔(18)周縁に、リベット(13)の塑性変形させられた軸部(21a)に係合する凸部(20)が設けられていることを特徴とするリベット止め装置。An apparatus for fastening a first member (9) and a second member (10), each having a rivet insertion hole (18) (19) and overlapping each other, using a rivet (13). A convex portion (20) for engaging with the plastically deformed shaft portion (21a) of the rivet (13) is provided on the periphery of the rivet insertion hole (18) on the side opposite to the side of one of the members (9). A riveting device, characterized in that the device is riveted. リベット(13)は、軸部(21a)およびその一端部に設けられたフランジ部(21b)からなる中空状リベット本体(21)と、リベット本体(21)の他端部に当接するフランジ部(22a)を有しリベット本体(21)に挿通されたマンドレル(22)とからなり、マンドレル(22)を引き上げることにより、マンドレル(22)が中間部で破断するとともにリベット本体(21)のフランジ部(21b)と塑性変形させられた軸部(21a)とによって両部材(9)(10)が締結されるものである請求項1のリベット止め装置。The rivet (13) is composed of a hollow rivet body (21) composed of a shaft (21a) and a flange (21b) provided at one end thereof, and a flange (21) contacting the other end of the rivet body (21). 22a) and a mandrel (22) inserted through the rivet body (21). By pulling up the mandrel (22), the mandrel (22) is broken at an intermediate portion and a flange portion of the rivet body (21). 2. The riveting device according to claim 1, wherein the two members (9) and (10) are fastened by the (21b) and the plastically deformed shaft portion (21a). 凸部(20)が形成されている部材(9)が押出形材製とされており、凸部(20)は、形材の全長にわたって形成されている請求項1または2のリベット止め装置。The riveting device according to claim 1 or 2, wherein the member (9) on which the projection (20) is formed is made of an extruded profile, and the projection (20) is formed over the entire length of the profile. 1対の足場板構成部材(2)(3)からなり、各足場板構成部材(2)(3)が、幅方向に間隙をおいて並列状に並べられた横断面略方形の形材(6)(6A)(9)(9A)と、一端部に設けられた形材結合用兼端部閉鎖用カバー(7)(10)と、他端部に設けられた形材結合用兼案内用枠部材(8)(11)とから構成されるとともに、第1足場板構成部材(2)の形材(6)(6A)が第2足場板構成部材(3)の形材(9)(9A)間に長さ方向スライド自在に介在されている伸縮足場板であって、
各足場板構成部材(2)(3)の各形材(6)(6A)(9)(9A)の上下壁と各カバー(7)(10)および各枠部材(8)(11)の上下壁とが、請求項1、2または3のリベット止め装置によってそれぞれ固定されていることを特徴とする伸縮足場板。
Each of the scaffold plate components (2) and (3) is composed of a pair of scaffold plate component members (2) and (3), and each of the scaffold plate component members (2) and (3) is arranged side by side with a gap in the width direction. 6) (6A), (9) and (9A), a profile-joining and end-closing cover (7) (10) provided at one end, and a profile-joining and guide provided at the other end. Frame members (8) and (11), and the profile members (6) and (6A) of the first scaffold plate component (2) are the profile members (9) of the second scaffold plate component (3). (9A) a telescopic scaffold plate interposed slidably in the length direction,
The upper and lower walls of each section member (6) (6A) (9) (9A) of each scaffold plate constituent member (2) (3), and each cover (7) (10) and each frame member (8) (11) A telescoping scaffold, wherein the upper and lower walls are fixed by the riveting device according to claim 1, 2 or 3.
JP2003108692A 2003-04-14 2003-04-14 Rivet device and expansion scaffold board using the same Withdrawn JP2004316706A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021011747A (en) * 2019-07-08 2021-02-04 株式会社タカミヤ Work scaffolding board
JP7489196B2 (en) 2020-01-23 2024-05-23 株式会社タカミヤ Work scaffolding board

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021011747A (en) * 2019-07-08 2021-02-04 株式会社タカミヤ Work scaffolding board
JP7316122B2 (en) 2019-07-08 2023-07-27 株式会社タカミヤ work scaffold plank
JP7489196B2 (en) 2020-01-23 2024-05-23 株式会社タカミヤ Work scaffolding board

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