JP5665778B2 - Clamp metal fitting device - Google Patents

Clamp metal fitting device Download PDF

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JP5665778B2
JP5665778B2 JP2012013291A JP2012013291A JP5665778B2 JP 5665778 B2 JP5665778 B2 JP 5665778B2 JP 2012013291 A JP2012013291 A JP 2012013291A JP 2012013291 A JP2012013291 A JP 2012013291A JP 5665778 B2 JP5665778 B2 JP 5665778B2
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receiving member
male
clamp
fitting device
fixed receiving
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JP2013151825A (en
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内橋　義晴
義晴 内橋
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平和技研株式会社
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G7/00—Connections between parts of the scaffold
    • E04G7/02—Connections between parts of the scaffold with separate coupling elements
    • E04G7/06—Stiff scaffolding clamps for connecting scaffold members of common shape
    • E04G7/12—Clamps or clips for crossing members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F16B7/044—Clamping or clipping connections for rods or tubes being in angled relationship

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Clamps And Clips (AREA)
  • Connection Of Plates (AREA)

Description

本発明は、建築現場等において足場板を支持するパイプ支柱等の交叉部分を連結する場合に使用する、又は２本のパイプ材を繋ぎ合わせるために使用するクランプ金具装置に関するものである。 The present invention relates to a clamp fitting device that is used in connecting a crossing portion such as a pipe column that supports a scaffolding plate at a construction site or the like, or used to connect two pipe members together.

一般に建築現場等で使用される組立足場は、柱や梁等を構成するパイプ材をクランプ金具装置で縦横に連結することによって組み立てられている（特許文献１参照）。
図７に示すように、従来のクランプ金具装置７０は、それぞれパイプ７１、７２を挟持する第１、第２のクランプ機構７３、７４を有し、それぞれ第１、第２のクランプ機構７３、７４の平面座７５、７６を、背中合わせにして４本のリベット７８（通常、直径Ｄが６ｍｍ）によって連結している。 In general, an assembly scaffold used in a construction site or the like is assembled by vertically and horizontally connecting pipe materials constituting columns, beams, and the like with a clamp fitting device (see Patent Document 1).
As shown in FIG. 7, the conventional clamp fitting device 70 includes first and second clamp mechanisms 73 and 74 that sandwich the pipes 71 and 72, respectively, and the first and second clamp mechanisms 73 and 74, respectively. The flat seats 75 and 76 are connected back to back by four rivets 78 (usually having a diameter D of 6 mm).

そして、第１、第２のクランプ機構７３、７４は、それぞれパイプ７１、７２が嵌入する半円弧状の凹部８２、８３を有する固定受け部材８４、８５と、この固定受け部材８４、８５の基部にピン８６、８７を介して回動自在に連結されている半円弧状の凹部８８、８９を有する可動受け部材９０、９１と、可動受け部材９０、９１と固定受け部材８４、８５を連結するボルト９２、９３及びナット９４、９５を有している。なお、ボルト９２、９３の基部は固定受け部材８４、８５の先部にピン９７、９８を介して回動可能に連結されている。図７の上部に平面座７５、７６に形成されているリベット孔９８を示す。 The first and second clamping mechanisms 73 and 74 include a fixed receiving member 84 and 85 having semi-arc-shaped concave portions 82 and 83 into which the pipes 71 and 72 are fitted, respectively, and a base portion of the fixed receiving member 84 and 85. The movable receiving members 90 and 91 having the semicircular arc-shaped recesses 88 and 89 connected to each other via the pins 86 and 87 are connected to the movable receiving members 90 and 91 and the fixed receiving members 84 and 85. Bolts 92 and 93 and nuts 94 and 95 are provided. The base portions of the bolts 92 and 93 are rotatably connected to the tip portions of the fixed receiving members 84 and 85 via pins 97 and 98. The rivet hole 98 formed in the plane seats 75 and 76 is shown in the upper part of FIG.

特開２００４−２７７８１号公報JP 2004-27781 A

しかしながら、従来のクランプ金具装置においては、以下のような問題があった。
（１）第１、第２のクランプ機構７３、７４をプレス成形する他、平面座７５、７６に設けた４つのリベット孔９８にそれぞれリベット７８を入れ込む必要があり、余分な材料が必要となっていた。
（２）また、従来の技術では、リベット７８は通常直径Ｄが６ｍｍのものを使用していたので、引っ張りに対してはある程度の強度を有するが、剪断に対してはリベット７８とリベット孔９８との間に多少のガタ（隙間）を設ける必要があることもあって、１又は２本のリベットに剪断力が集中して強度不足が生じる場合があった。
（３）勿論、リベットの直径を大きくすることも考えられるが、組み立てにあっては、リベットの頭部を押し潰してかしめるので、隣り合うリベットを隙間を有して配置することが必要となり、クランプ機構７３、７４の大型化に繋がるという問題があった。 However, the conventional clamp fitting device has the following problems.
(1) In addition to press-molding the first and second clamping mechanisms 73 and 74, it is necessary to insert rivets 78 into the four rivet holes 98 provided in the plane seats 75 and 76, respectively. It was.
(2) In the prior art, a rivet 78 having a diameter D of 6 mm is usually used. Therefore, the rivet 78 has a certain degree of strength against pulling, but is rivet 78 and a rivet hole 98 against shearing. In some cases, it is necessary to provide some backlash (gap) between the two and the shearing force concentrates on one or two rivets, resulting in insufficient strength.
(3) Of course, it is conceivable to increase the diameter of the rivet. However, in assembling, the head of the rivet is crushed and caulked, so it is necessary to arrange adjacent rivets with a gap. There is a problem that the clamp mechanisms 73 and 74 are increased in size.

本発明は、かかる事情に鑑みてなされたもので、余分な材料を使用せず、しかも十分な強度を有し、かつ組み立て易いクランプ金具装置を提供することを目的とする。 The present invention has been made in view of such circumstances, and an object of the present invention is to provide a clamp fitting device that does not use extra materials, has sufficient strength, and is easy to assemble.

前記目的に添う第１の発明にかかるクランプ金具装置は、支持パイプの外側面に一致させた第１の凹部を内側に有する固定受け部材と、該固定受け部材の基端部に回動自在に第１のピンを介して連結され、先端部にはナット受け座が形成されて、前記支持パイプの外側面に一致する第２の凹部を内側に有する可動受け部材と、前記固定受け部材の先端部に回動自在に第２のピンを介して取付けられ、その先部が前記ナット受け座に装着され、螺合するナットによって前記固定受け部材と前記可動受け部材による前記支持パイプの締結を行う取付けボルトとをそれぞれ備えた第１、第２のクランプ機構を、それぞれの前記固定受け部材に形成された第１、第２の平面座を介して背中合わせに連結されたクランプ金具装置において、
それぞれの一辺が４２〜４８ｍｍで厚みが３〜３．２ｍｍの前記第１、第２の平面座に軸心を合わせて形成される一辺が２０〜２３ｍｍの仮想（即ち、架空）の正方形の角部位置で、正方形状の前記第１、第２の平面座の対角線上に、前記第１、第２の平面座をプレス加工することによって形成された厚みが１．２〜１．８ｍｍ、基部の外側径が前記第１、第２の平面座の厚みの３〜４．５倍の範囲にある管状の雄形突起と、該雄形突起の基部の外側径と一致する内径を有する雌孔とが交互に形成され、しかも、前記雌孔は嵌入した前記雄形突起の出口側に外側に開くテーパー部を備え、更に、前記雄形突起の先側が、前記雌孔のテーパー部に沿って拡径して、前記第１、第２のクランプ機構が連結されている。 According to a first aspect of the present invention, a clamp fitting apparatus according to a first aspect of the present invention includes a fixed receiving member having a first recess on the inner side that is aligned with an outer surface of a support pipe, and a base end portion of the fixed receiving member. A movable receiving member that is connected via a first pin, has a nut receiving seat formed at a tip portion thereof, and has a second concave portion that coincides with an outer surface of the support pipe, and a tip end of the fixed receiving member It is attached to a part via a second pin so as to be rotatable, and a tip part thereof is attached to the nut receiving seat, and the supporting pipe is fastened by the fixed receiving member and the movable receiving member by a screwed nut. In the clamp fitting device in which the first and second clamp mechanisms each provided with a mounting bolt are connected back to back via the first and second plane seats formed on the respective fixed receiving members,
An imaginary (ie, fictitious) square corner having a side of 20 to 23 mm formed by aligning the axis with the first and second plane seats each having a side of 42 to 48 mm and a thickness of 3 to 3.2 mm. The thickness formed by pressing the first and second plane seats on the diagonal of the square-shaped first and second plane seats at a portion position is 1.2 to 1.8 mm, and the base portion A male male projection having an outer diameter of 3 to 4.5 times the thickness of the first and second plane seats, and a female hole having an inner diameter that matches the outer diameter of the base of the male projection And the female hole is provided with a tapered portion that opens outwardly on the outlet side of the inserted male projection, and the front side of the male projection extends along the tapered portion of the female hole. The first and second clamping mechanisms are connected to expand the diameter.

第１の発明に係るクランプ金具装置は、前記雄形突起の基部の外側径が、前記第１、第２の平面座の厚みの３〜４．５倍の範囲にある。従って、平面座の厚みが３．２ｍｍの場合は、雄形突起の外側直径が９．６〜１４．４ｍｍの範囲にある。 Clamp fitting apparatus according to the first invention, the outer diameter of the base of the male shaped protrusion is in the range of 3 to 4.5 times the first, second raised face thickness. Therefore, when the thickness of the plane seat is 3.2 mm, the outer diameter of the male protrusion is in the range of 9.6 to 14.4 mm.

本発明に係るクランプ金具装置においては、以下のような効果を有する。
（１）本発明に係るクランプ金具装置においては、第１、第２の平面座に形成される管状の雄形突起が、プレス加工によって形成されるので、従来のようにリベットを用いる必要がない。従って、安価にこのクランプ金具装置を製造できる。 The clamp fitting device according to the present invention has the following effects.
(1) In the clamp fitting device according to the present invention, since the tubular male protrusions formed on the first and second flat seats are formed by pressing, there is no need to use rivets as in the prior art. . Therefore, this clamp fitting device can be manufactured at low cost.

（２）本発明に係るクランプ金具装置においては、平面座に仮想的に形成された正方形の角部の一方の対角位置に雄形突起を、他方の対角位置に出口側に外側に開くテーパー部を備えた雌孔を形成し、連結にあっては雄形突起の先側を雌孔のテーパー部に沿って拡径（以下、この部分を「拡径部」という）しているが、雄形突起の拡径部の径が、特定の試験荷重をかけても雌孔から雄形突起が抜けない程度の比較的小さな径（例えば、雄形突起の基部の直径の１．１５〜１．４倍）で済むので、雄形突起の基部直径を従来のリベットより大きくできる。 (2) In the clamp fitting device according to the present invention, the male projection is opened at one diagonal position of the square corner portion virtually formed on the plane seat, and is opened outwardly at the other diagonal position. A female hole having a tapered portion is formed, and in connection, the front side of the male projection is expanded along the tapered portion of the female hole (hereinafter, this portion is referred to as “expanded portion”). The diameter of the enlarged portion of the male protrusion is a relatively small diameter (eg, 1.15 of the diameter of the base of the male protrusion) such that the male protrusion does not come out of the female hole even when a specific test load is applied. 1.4 times), the base diameter of the male protrusion can be made larger than that of the conventional rivet.

（３）また、雄形突起の拡径部の位置は、前記した正方形の対角線上にある。従って、隣り合う拡径部の距離は、従来の正方形の辺ではなくて対角線の長さであるので、この意味からも雄形突起の基部直径を大きくでき、これによって、十分な剪断強度と引っ張り強度を有する雄形突起とすることができる。 (3) Moreover, the position of the enlarged diameter part of a male processus | protrusion is on the above-mentioned square diagonal. Therefore, the distance between the adjacent enlarged diameter portions is not the square side of the conventional square but the length of the diagonal line. Therefore, the base diameter of the male protrusion can be increased from this point of view. It can be a male projection having strength.

本発明の一実施の形態に係るクランプ金具装置の正面図である。It is a front view of the clamp metal fitting device concerning one embodiment of the present invention. 同クランプ金具装置の平面図である。It is a top view of the clamp metal fitting device. 同クランプ金具装置の対向する固定受け部材を連結した状態の斜視図である。It is a perspective view in the state where the fixed receiving member which the clamp metal fitting device counters was connected. （Ａ）、（Ｂ）は同クランプ金具装置の固定受け部材の平面図、（Ｃ）は斜視図である。(A), (B) is a top view of the fixed receiving member of the clamp metal fitting device, (C) is a perspective view. （Ａ）〜（Ｄ）は同クランプ金具装置の第１、第２の平面座の取付け方法の説明図である。(A)-(D) are explanatory drawings of the attachment method of the 1st, 2nd plane seat of the clamp metal fittings device. 同クランプ金具装置と従来例に係るクランプ金具装置を比較した実施例についての説明図である。It is explanatory drawing about the Example which compared the clamp metal fitting apparatus and the clamp metal fitting apparatus which concerns on a prior art example. 従来例に係るクランプ金具装置の正面図である。It is a front view of the clamp metal fitting device concerning a conventional example.

続いて、添付した図面を参照しながら、本発明を具体化した実施の形態について説明する。
図１、図２に示すように、本発明の一実施の形態に係るクランプ金具装置１０は鋼材（普通鋼、炭素鋼、高張力鋼）からなって、それぞれの平面座１１、１２を向かい合わせて連結される第１、第２のクランプ機構１３、１４を備えている。 Next, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, a clamp fitting device 10 according to an embodiment of the present invention is made of steel (ordinary steel, carbon steel, high-tensile steel), and the flat seats 11 and 12 face each other. The first clamp mechanism 13 and the second clamp mechanism 14 are connected.

第１のクランプ機構１３（第２のクランプ機構１４も同じ）は、支持パイプ１５（第２のクランプ機構１４においては１５ａ）の外側面に一致させた第１の凹部１６を内側に有する固定受け部材１７と、固定受け部材１７の基端部に回動自在に第１のピン１８を介して連結され、先端部にはＵ字状の開口部１９を有するナット受け座２０が形成されて、支持パイプ１５の外側面に一致する第２の凹部２１を内側に有する可動受け部材２２とを有している。 The first clamp mechanism 13 (the same applies to the second clamp mechanism 14) is a fixed receiver having a first recess 16 on the inner side that is aligned with the outer surface of the support pipe 15 (15a in the second clamp mechanism 14). A nut receiving seat 20 having a U-shaped opening 19 is formed at the distal end portion, and is connected to the member 17 and a base end portion of the fixed receiving member 17 via a first pin 18. And a movable receiving member 22 having a second recess 21 on the inner side that coincides with the outer surface of the support pipe 15.

第１のクランプ機構１３は、更に、固定受け部材１７の先端部に回動自在に第２のピン２３を介して取付けられ、その先部がナット受け座２０に装着されて、螺合するナット２４によって固定受け部材１７と可動受け部材２２によって支持パイプ１５の締結を行う取付けボルト２５を備えている。図３、図４に示すように、この第１、第２のクランプ機構１３、１４は、それぞれの固定受け部材１７に形成された第１、第２の平面座１１、１２に設けられた雄形突起２７〜３０を介して背中合わせに連結されている。なお、第２のクランプ機構１４の平面座１２に設けられた雄形突起２８、３０の位置は平面座１１の雄形突起２７、２９の位置と異なっているので、第２のクランプ機構１４の固定受け部材を番号１７ａとする。 The first clamp mechanism 13 is further attached to the distal end portion of the fixed receiving member 17 via the second pin 23 so as to be freely rotatable, and the tip portion of the first clamp mechanism 13 is attached to the nut receiving seat 20 and screwed into the nut. A fixing bolt 25 for fastening the support pipe 15 by the fixed receiving member 17 and the movable receiving member 22 is provided. As shown in FIGS. 3 and 4, the first and second clamping mechanisms 13 and 14 are male and male provided on the first and second plane seats 11 and 12 formed on the respective fixed receiving members 17. They are connected back to back via the shape protrusions 27-30. The positions of the male projections 28 and 30 provided on the flat seat 12 of the second clamp mechanism 14 are different from the positions of the male projections 27 and 29 of the flat seat 11. The fixed receiving member is designated as number 17a.

図４（Ａ）〜（Ｃ）、図５（Ａ）に示すように、この実施の形態においては、固定受け部材１７、１７ａの平面座（平面部分をいう）１１、１２は一辺が約４５ｍｍ（４２〜４８ｍｍ程度がよい）の正方形であり、この中に軸心を同じくして１辺２０ｍｍ（１８〜２３ｍｍの範囲がよい）の仮想の正方形ｓを形成し、その角部位置に管状の雄形突起２７〜３０とこれらが嵌入する雌孔３１〜３４を交互に形成している。従って対角線上にある雌孔３１、３３及び３２、３４の距離は、２５．４〜３２．５ｍｍとなって、雌孔３１〜３４の径を十分に大きくできる。この実施の形態では、雄形突起２７〜３０の基部の直径（外側径）は、平面座１１、１２の厚み（例えば、３〜３．２ｍｍ）の３〜４．５倍程度となっている（具体的には、１１〜１４ｍｍ、例えば１３ｍｍ）。また、雄形突起２７〜３０の長さは平面座１１、１２の厚みの１．３〜１．６倍程度である。 As shown in FIGS. 4 (A) to (C) and FIG. 5 (A), in this embodiment, the plane seats (referred to as plane portions) 11 and 12 of the fixed receiving members 17 and 17a have a side of about 45 mm. A virtual square s having a side of 20 mm (preferably in the range of 18 to 23 mm) is formed in the same shape, and a tubular shape is formed at the corner portion. Male protrusions 27 to 30 and female holes 31 to 34 into which these are inserted are alternately formed. Accordingly, the distance between the female holes 31, 33 and 32, 34 on the diagonal line is 25.4 to 32.5 mm, and the diameter of the female holes 31 to 34 can be sufficiently increased. In this embodiment, the diameter (outer diameter) of the base of the male protrusions 27 to 30 is about 3 to 4.5 times the thickness (for example, 3 to 3.2 mm) of the plane seats 11 and 12. (Specifically, 11 to 14 mm, for example, 13 mm). The length of the male protrusions 27 to 30 is about 1.3 to 1.6 times the thickness of the plane seats 11 and 12.

一方、雄形突起２７〜３０の厚みは、１．２〜１．８ｍｍであるから、最小条件（雄形突起の直径を１１ｍｍ、厚みを１．２ｍｍ）で計算して各雄形突起２７〜３０の断面積が３７ｍｍ2となり、直径が６ｍｍのリベット（断面積２８ｍｍ2）より大きくなって、剪断破壊強度及び引っ張り強度ともに大きくなる。
また、雌孔３１〜３４の出側（即ち、雄形突起２７〜３０が突出する側）には、図５（Ａ）〜（Ｄ）に示すように、外側に直径が徐々に大きくなるテーパー部３６が設けられている。 On the other hand, since the thickness of the male protrusions 27 to 30 is 1.2 to 1.8 mm, the male protrusions 27 to 30 are calculated under the minimum conditions (the diameter of the male protrusion is 11 mm and the thickness is 1.2 mm). The cross-sectional area of 30 is 37 mm 2 , which is larger than the rivet having a diameter of 6 mm (cross-sectional area 28 mm 2 ), and both the shear fracture strength and the tensile strength are increased.
Further, on the exit side of the female holes 31 to 34 (that is, the side on which the male protrusions 27 to 30 protrude), as shown in FIGS. A portion 36 is provided.

このテーパー部３６のテーパー角は４０〜５０度程度となって、突出側の最大径は、雌孔３１〜３４の内径＋１．８〜３．５ｍｍ程度となっている。このテーパー部３６の形成は、雌孔３１〜３４をプレス抜きするときに同時に作成するのが好ましい。
雄形突起２７〜３０の形成は、雄形突起２７〜３０の中心位置に予め小径の円孔を形成し、プレス加工によって、押し抜きを行うことになる。このときの加工は、材料によって変わるが、ホットプレスであってもよいし、冷間プレスであってもよい。円孔の直径は、雄形突起２７〜３０の長さ、外径及び内径によって決定されるが、プレスしても金属の容積は変わらないので、周知の方法によって容易に計算できる。 The taper angle of the taper portion 36 is about 40 to 50 degrees, and the maximum diameter on the protruding side is about the inner diameter of the female holes 31 to 34 +1.8 to 3.5 mm. The tapered portion 36 is preferably formed at the same time as the female holes 31 to 34 are punched out.
The male protrusions 27 to 30 are formed by forming a small-diameter circular hole in advance at the center position of the male protrusions 27 to 30 and performing punching by pressing. The processing at this time varies depending on the material, but may be hot pressing or cold pressing. The diameter of the circular hole is determined by the length, the outer diameter, and the inner diameter of the male protrusions 27 to 30. However, since the metal volume does not change even when pressed, it can be easily calculated by a known method.

図５（Ｂ)〜（Ｄ）に、この雄形突起２８、２９（２７、３０も同様）の加工方法を記載しているが、雄形突起２７〜３０を雌孔３１〜３４に入れて、別のパンチによって雄形突起２７〜３０の先端のテーパー部３６に沿った拡径加工を行う。この場合の拡径代を片側１．２〜２ｍｍ程度とするのがよい。これによって、十分な抜け耐力を有する。なお、図５（Ｂ）〜（Ｄ）は図４において矢視Ｐ−Ｐ’を示す。また、図５（Ａ）は図５（Ｂ）の矢視Ｒ−Ｒ’を示す。
雄形突起２７〜３０の先端部外側に面取り（０．２〜０．５ｍｍ）を行うと、雄形突起２７〜３０の基部外径と雌孔３１〜３４の内径を一致させることができ、これによって、雄形突起２７〜３０と雌孔３１〜３４のガタをなくすことができる。 5 (B) to 5 (D) show the processing method of the male protrusions 28 and 29 (same for 27 and 30). The male protrusions 27 to 30 are inserted into the female holes 31 to 34. Then, the diameter is increased along the tapered portion 36 at the tip of the male projections 27 to 30 by another punch. The diameter expansion allowance in this case is preferably about 1.2 to 2 mm on one side. Thereby, it has sufficient proof stress. 5 (B) to 5 (D) show the arrows PP ′ in FIG. FIG. 5A shows an arrow RR ′ in FIG. 5B.
When chamfering (0.2 to 0.5 mm) is performed on the outer ends of the male protrusions 27 to 30, the outer diameters of the bases of the male protrusions 27 to 30 can be matched with the inner diameters of the female holes 31 to 34. Thereby, the play of the male projections 27 to 30 and the female holes 31 to 34 can be eliminated.

図６に本発明の一実施の形態に係るクランプ金具装置１０と従来例に係るクランプ金具装置７０とを剪断破壊させた実験装置４０を示す。図に示すように、直径が４８．６ｍｍの支柱４１に、クランプ金具装置７０、１０を介して支持パイプ４２を取付け、支持パイプ４２の途中に６０ｋｇの重り４３を設け、剪断破壊した距離Ｌを測定した。 FIG. 6 shows an experimental apparatus 40 in which the clamp fitting device 10 according to one embodiment of the present invention and the clamp fitting device 70 according to the conventional example are sheared and broken. As shown in the figure, a support pipe 42 is attached to a support column 41 having a diameter of 48.6 mm through clamp metal fittings 70 and 10, a weight 43 of 60 kg is provided in the middle of the support pipe 42, and a sheared distance L is set. It was measured.

それぞれ３個のクランプ金具装置７０、１０の測定を行った結果、リベットかしめした従来のクランプ金具装置７０においては、Ｌが、２．３ｍ（一回目）、２．２ｍ（２回目）、２．２ｍ（３回目）で、平均Ｌが２．２３３ｍであった。
また、クランプ金具装置１０においてはＬが、３．５ｍ（１回目）、３．５ｍ（２回目）、３．６ｍ（３回目）で平均が３．５３３ｍであった。このことから、本発明の一実施の形態に係るクランプ金具装置１０の方がより大きな剪断破壊強度を有することが分かる。 As a result of measuring three clamp fitting devices 70 and 10 respectively, L is 2.3 m (first time), 2.2 m (second time), and 2. At 2 m (third time), the average L was 2.233 m.
Further, in the clamp fitting device 10, L was 3.5 m (first time), 3.5 m (second time), 3.6 m (third time), and the average was 3.533 m. From this, it can be seen that the clamp fitting device 10 according to one embodiment of the present invention has a greater shear fracture strength.

本発明は前記した実施の形態に限定されるものではなく、本発明の要旨を変更しない範囲でその構成を変更することもできる。例えば、前記実施の形態においては、第１、第２のクランプ機構は同一直径の支持パイプを固定するようにしていたが、第１、第２のクランプ機構に異なる直径の支持パイプを挟持させてもよい。
また、前記実施の形態では、第１、第２のクランプ機構の固定受け部材は異なる位置に雄形突起、及び雌孔が設けられていたが、同一位置に設け、第１、第２のクランプ機構に平行配置された支持パイプを挟持するようにしてもよい。 The present invention is not limited to the above-described embodiment, and the configuration thereof can be changed without changing the gist of the present invention. For example, in the above-described embodiment, the first and second clamp mechanisms are configured to fix the support pipes having the same diameter, but the support pipes having different diameters are sandwiched between the first and second clamp mechanisms. Also good.
Moreover, in the said embodiment, although the male receiving protrusion and the female hole were provided in the different position, the fixed receiving member of the 1st, 2nd clamp mechanism was provided in the same position, and the 1st, 2nd clamp You may make it clamp the support pipe arrange | positioned in parallel with a mechanism.

１０：クランプ金具装置、１１、１２：平面座、１３：第１のクランプ機構、１４：第２のクランプ機構、１５、１５ａ：支持パイプ、１６：第１の凹部、１７、１７ａ：固定受け部材、１８：第１のピン、１９：開口部、２０：ナット受け座、２１：第２の凹部、２２：可動受け部材、２３：第２のピン、２４：ナット、２５：取付けボルト、２７〜３０：雄形突起、３１〜３４：雌孔、３６：テーパー部、４０：実験装置、４１：支柱、４２：支持パイプ、４３：重り DESCRIPTION OF SYMBOLS 10: Clamp metal apparatus, 11, 12: Planar seat, 13: 1st clamp mechanism, 14: 2nd clamp mechanism, 15, 15a: Support pipe, 16: 1st recessed part, 17, 17a: Fixed receiving member , 18: first pin, 19: opening, 20: nut receiving seat, 21: second recess, 22: movable receiving member, 23: second pin, 24: nut, 25: mounting bolt, 27- 30: male projection, 31-34: female hole, 36: taper part, 40: experimental device, 41: support, 42: support pipe, 43: weight

Claims (2)

支持パイプの外側面に一致させた第１の凹部を内側に有する固定受け部材と、該固定受け部材の基端部に回動自在に第１のピンを介して連結され、先端部にはナット受け座が形成されて、前記支持パイプの外側面に一致する第２の凹部を内側に有する可動受け部材と、前記固定受け部材の先端部に回動自在に第２のピンを介して取付けられ、その先部が前記ナット受け座に装着され、螺合するナットによって前記固定受け部材と前記可動受け部材による前記支持パイプの締結を行う取付けボルトとをそれぞれ備えた第１、第２のクランプ機構を、それぞれの前記固定受け部材に形成された第１、第２の平面座を介して背中合わせに連結されたクランプ金具装置において、
それぞれの一辺が４２〜４８ｍｍで厚みが３〜３．２ｍｍの前記第１、第２の平面座に軸心を合わせて形成される一辺が２０〜２３ｍｍの仮想正方形の角部位置で、正方形状の前記第１、第２の平面座の対角線上に、前記第１、第２の平面座をプレス加工することによって形成された厚みが１．２〜１．８ｍｍ、基部の外側径が前記第１、第２の平面座の厚みの３〜４．５倍の範囲にある管状の雄形突起と、該雄形突起の基部の外側径と一致する内径を有する雌孔とが交互に形成され、しかも、前記雌孔は嵌入した前記雄形突起の出口側に外側に開くテーパー部を備え、更に、前記雄形突起の先側が、前記雌孔のテーパー部に沿って拡径して、前記第１、第２のクランプ機構が連結されていることを特徴とするクランプ金具装置。 A fixed receiving member having a first concave portion on the inner side that matches the outer surface of the support pipe, and a base end portion of the fixed receiving member that is pivotally connected via a first pin. A receiving seat is formed, and a movable receiving member having a second concave portion that coincides with the outer side surface of the support pipe is attached to the front end portion of the fixed receiving member via a second pin. The first and second clamping mechanisms each having a tip portion mounted on the nut receiving seat and provided with a fixed receiving member and a mounting bolt for fastening the support pipe by the movable receiving member by a nut to be screwed together. In the clamp fitting device connected back to back via the first and second plane seats formed on each of the fixed receiving members,
Each side is 42 to 48 mm, and the thickness is 3 to 3.2 mm. The first and second plane seats are aligned with the axis, and each side is 20 to 23 mm. The thickness formed by pressing the first and second plane seats on the diagonal line of the first and second plane seats is 1.2 to 1.8 mm, and the outer diameter of the base is the first 1. Tubular male projections in the range of 3 to 4.5 times the thickness of the second planar seat and female holes having an inner diameter that matches the outer diameter of the base of the male projection are alternately formed. In addition, the female hole is provided with a tapered portion that opens outward on the outlet side of the inserted male projection, and the front side of the male projection is expanded along the tapered portion of the female hole, A clamp fitting device, wherein the first and second clamp mechanisms are connected. 請求項１記載のクランプ金具装置において、前記雄形突起の基部の外側径は１１〜１４ｍｍであることを特徴とするクランプ金具装置。 2. The clamp fitting device according to claim 1, wherein the outer diameter of the base portion of the male protrusion is 11 to 14 mm.
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