JP5480878B2 - Baseboard equipment in scaffolding - Google Patents

Baseboard equipment in scaffolding Download PDF

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JP5480878B2
JP5480878B2 JP2011263207A JP2011263207A JP5480878B2 JP 5480878 B2 JP5480878 B2 JP 5480878B2 JP 2011263207 A JP2011263207 A JP 2011263207A JP 2011263207 A JP2011263207 A JP 2011263207A JP 5480878 B2 JP5480878 B2 JP 5480878B2
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catch means
operating
arm
shaft
movable catch
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JP2013113071A5 (en
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和夫 伴
伸洋 清水
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Alinco Inc
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Alinco Inc
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Description

本発明は、足場における幅木装置に関し、幅木本体を強固な安定状態で取付可能とする装置に関する。 The present invention relates to a baseboard device in a scaffold, and relates to an apparatus that enables a baseboard body to be attached in a strong and stable state.

従来、建設現場等における足場構築体は、並設された横架材に架設される足場板により高所作業のための作業床を形成しているが、工具類やボルト・ナットその他の備品等が外側空間に落下する危険を防止するため、外側空間に臨む足場板の側縁に沿って幅木を立設することが公知である。 Conventionally, scaffold construction bodies at construction sites, etc., have formed a working floor for work in high places with scaffolding plates installed on side-by-side horizontal members, but tools, bolts, nuts and other equipment etc. In order to prevent the risk of falling into the outer space, it is known to erect baseboards along the side edges of the scaffolding plate facing the outer space.

ところで、幅木の迅速容易な取付を可能にするためには、本出願人が特許文献１及び特許文献２により提案したように、幅木本体の両端部にそれぞれ横架材に係合する顎部を備えたキャッチ手段を設け、前記幅木本体の両端部のうち少なくとも一方に設けられたキャッチ手段は、顎部の上方に位置する枢軸を介して幅木に回動自在に枢結し、該顎部を前記横架材に対して進退移動自在とする可動キャッチ手段を構成することが好ましい。 By the way, in order to enable quick and easy attachment of the skirting board, as proposed by the present applicant in Patent Document 1 and Patent Document 2, jaws engaged with the horizontal members at both ends of the skirting board main body, respectively. The catch means provided with a portion is provided, and the catch means provided on at least one of both ends of the base board body is pivotally connected to the base board via a pivot located above the jaw part, It is preferable to configure a movable catch means that allows the jaw portion to move forward and backward with respect to the horizontal member.

特開２０１１−１７０４号公報JP 2011-1704 A 特開２０１１−６８３９号公報JP 2011-6839 A

上記特許文献により提案した幅木装置の可動キャッチ手段５２は、図１２（Ａ）（Ｂ）に示すように、幅木本体５１に対して枢軸５３により前進方向Ｆと後退方向Ｒに向けて揺動自在に枢結され、顎部５４を横架材５５に対して進退自在に構成しているので、該顎部５４をワンタッチの作業で横架材５５に係合できる利点がある。そして、可動キャッチ手段５２を所定のロック位置ＬＰまで前進させ、顎部５４を横架材５５に係合させた状態で、該可動キャッチ手段５２と幅木本体５１の相互に合致するロック孔５６、５７にロックピン５８を挿入することにより、可動キャッチ手段５２を後退不能にロックするように構成している。尚、ロックピン５８は、図１３に示すように延長部５８ａを介して設けられた支持軸部５８ｂを幅木本体５１の支持孔５９に挿入され、図示省略したスプリングにより挿入方向に付勢されている。 As shown in FIGS. 12A and 12B, the movable catch means 52 of the baseboard apparatus proposed by the above-mentioned patent document swings in the forward direction F and the reverse direction R by the pivot 53 with respect to the baseboard body 51. Since the jaw portion 54 is configured to be movable and can be moved forward and backward with respect to the horizontal member 55, there is an advantage that the jaw portion 54 can be engaged with the horizontal member 55 by one-touch operation. Then, the movable catch means 52 is advanced to a predetermined lock position LP, and the lock holes 56 that match the movable catch means 52 and the baseboard body 51 are mutually engaged in a state where the jaw portion 54 is engaged with the horizontal member 55. , 57 is configured to lock the movable catch means 52 so that it cannot be retracted. 13, the lock pin 58 is urged in the insertion direction by a spring (not shown) by inserting a support shaft 58b provided via an extension 58a into the support hole 59 of the baseboard body 51 as shown in FIG. ing.

この際、図１３に示すように、ロック孔５６、５７とロックピン５８の間には、符号ＣＬで示すようなクリアランスがあり、ガタツキを許容しているので、矢印Ｒで示すように可動キャッチ手段５２が後退方向に向けて若干移動することが不可避である。この点に関して、横架材５５に係合する顎部５４は、該横架材の軸方向に並設された一対の顎部により構成されると共に、上顎と下顎により横架材の周面を上下から抱持する構成とされているので、多少のガタツキが生じても、幅木装置が脱落したり転倒したりすることはない。 At this time, as shown in FIG. 13, there is clearance between the lock holes 56 and 57 and the lock pin 58 as indicated by reference sign CL, and rattling is allowed. It is inevitable that the means 52 moves slightly in the backward direction. In this regard, the jaw portion 54 that engages with the horizontal member 55 is constituted by a pair of jaw portions arranged in parallel in the axial direction of the horizontal member, and the peripheral surface of the horizontal member is defined by the upper jaw and the lower jaw. Since it is configured to be held from above and below, the skirting board device will not fall off or fall over even if some backlash occurs.

しかしながら、例えば、横架材と支柱の連結に関して楔緊結構造が採用され、幅木装置を横架材に対して可及的に支柱に近接した個所に係合させたい場合等は、前記可動キャッチ手段５２の上顎を楔部材に干渉しないように短く形成せざるを得ない等の事情があり、そのような場合、上述のようなガタツキにより若干でも可動キャッチ手段５２が後退可能であると、幅木装置が外力を受けたとき傾動するおそれがある。 However, for example, when a wedge-tightening structure is adopted for connecting the horizontal member and the column, and the baseboard device is to be engaged with the horizontal member as close as possible to the column, the movable catch is used. There are circumstances such that the upper jaw of the means 52 has to be formed short so as not to interfere with the wedge member. In such a case, if the movable catch means 52 can be slightly retracted by the rattling as described above, There is a risk that the wood device will tilt when it receives external force.

このため、幅木装置の設計上、上顎を短く形成せざるを得ない場合は、上述のような若干でも可動キャッチ手段５２が後退しないようにロックする必要がある。因みに、顎部の構成の如何に関わらず、可動キャッチ手段を後退不能にロックできる構成が望ましいことはいうまでもない。 For this reason, when the upper jaw must be formed short due to the design of the skirting board device, it is necessary to lock the movable catch means 52 so that the movable catch means 52 does not move backward as much as described above. Incidentally, it goes without saying that a configuration capable of locking the movable catch means so as not to be retractable is desirable regardless of the configuration of the jaw.

更に、操作容易性の観点からすると、上述のような作業者が可動キャッチ手段５２をロック位置ＬＰまで前進させ、ロック孔５６、５７を目視しながらロックピン５８を位置決め状態で挿脱させる構成よりも、作業者が単純に操作手段を操作するだけで、可動キャッチ手段のロック位置までの前進と、その位置での後退不能なロックを一連の作業で行えるように構成することが好ましい。 Furthermore, from the viewpoint of ease of operation, the operator as described above advances the movable catch means 52 to the lock position LP, and inserts and removes the lock pin 58 in the positioning state while visually observing the lock holes 56 and 57. However, it is preferable that a simple operation of the operating means by the operator allows the movable catch means to advance to the lock position and to lock at the position so that the movable catch means cannot be retracted in a series of operations.

本発明は、上記課題を解決した幅木装置を提供するものであり、その手段として構成したところは、並設された横架材に架設される足場板の側縁に沿って立設される幅木であり、幅木本体の両端部に前記横架材に係合する顎部を備えたキャッチ手段を設け、前記幅木本体の両端部のキャッチ手段のうち少なくとも一方のキャッチ手段は、顎部の上方に位置する枢軸により幅木本体に枢結され、該顎部を前記横架材に対して後退位置と前進位置の間で進退移動自在に揺動させると共に所定位置に前進したロック位置ＬＰで横架材に係合させる可動キャッチ手段を構成する幅木装置において、前記可動キャッチ手段に開設した作動孔と、前記作動孔に挿通された作動軸と、前記作動軸を移動することにより可動キャッチ手段を進退方向に揺動させる操作手段から成る操作機構を設け、前記操作手段は、可動キャッチ手段が前記ロック位置ＬＰに位置する状態で、作動孔の内周縁のうち前進方向の前縁部に作動軸を当接すると共に、該作動軸を進退不能に固定するように構成されて成る点にある。 This invention provides the baseboard apparatus which solved the said subject, The place comprised as the means is erected along the side edge of the scaffolding board constructed by the horizontal member arranged in parallel. The catch means is a skirting board, and is provided with catch means having jaws engaging with the horizontal member at both ends of the baseboard body, and at least one of the catch means at both ends of the baseboard body is a jaw A lock position that is pivotally connected to the skirting board main body by a pivot located above the section, swings the jaw part forward and backward between the retracted position and the advanced position with respect to the horizontal member, and advances to a predetermined position. In the baseboard device constituting the movable catch means to be engaged with the horizontal member by LP, the operating hole opened in the movable catch means, the operating shaft inserted through the operating hole, and by moving the operating shaft Move the movable catch means in the forward / backward direction. An operating mechanism comprising an operating means is provided, and the operating means abuts the operating shaft on the front edge in the forward direction of the inner peripheral edge of the operating hole in a state where the movable catch means is located at the lock position LP, and The operating shaft is configured to be fixed so as not to advance and retract.

本発明の好ましい実施形態において、前記操作手段は、前記作動軸から離隔した位置で幅木本体に設けられた基準軸と、前記作動軸と基準軸を連結するリンクアームにより構成され、前記リンクアームは、作動軸から延びる第１アーム部と、基準軸から延びる第２アーム部により構成され、両アーム部の対向する端部をリンク軸により枢結し、前記リンク軸を介して両アーム部を屈折したとき可動キャッチ手段を後退移動させ、両アーム部を伸長したとき可動キャッチ手段を前進移動させるように可動キャッチ手段に連動連結され、伸長状態で作動軸を進退不能に固定すると共に作動孔の前記前縁部に当接させるように構成されている。 In a preferred embodiment of the present invention, the operating means includes a reference shaft provided on a baseboard body at a position spaced from the operating shaft, and a link arm that connects the operating shaft and the reference shaft. Is constituted by a first arm portion extending from the operating shaft and a second arm portion extending from the reference shaft, and the opposite ends of both arm portions are pivotally connected by a link shaft, and both arm portions are connected via the link shaft. When refracted, the movable catch means is moved backward, and when both arms are extended, the movable catch means is interlocked with the movable catch means so as to move the movable catch means forward. It is comprised so that it may contact | abut to the said front edge part.

この際、前記第１アーム部と第２アーム部を伸長したとき、保持ピンを保持孔に嵌入することにより両アーム部の屈折方向への復帰移動を阻止する固定保持手段を設けることが好ましい。 At this time, it is preferable to provide a fixed holding means for preventing the return movement of both arm portions in the bending direction by inserting the holding pins into the holding holes when the first arm portion and the second arm portion are extended .

本発明の好ましい実施形態は、第１アーム部と第２アーム部のうち、一方のアーム部が他方のアーム部の上方に延長された操作片を設けており、該操作片を介して両アーム部の屈折又は伸長を行うように構成している。 In a preferred embodiment of the present invention, an operation piece is provided in which one of the first arm portion and the second arm portion is extended above the other arm portion, and both arms are interposed via the operation piece. The part is configured to bend or stretch.

そこで、前記一方のアーム部に設けられた操作片から更に他方のアーム部の上方に延長された弾性シート状の保護カバーを設けることが好ましい。 Therefore, it is preferable to provide an elastic sheet-like protective cover that extends further from the operation piece provided on the one arm portion to above the other arm portion.

本発明によれば、進退自在な顎部１３を有する可動キャッチ手段１２Ａによりワンタッチの作業で横架材３に係合する構成において、可動キャッチ手段１２Ａに開設した作動孔３３と、前記作動孔３３に挿通された作動軸２９と、前記作動軸２９を移動することにより可動キャッチ手段１２Ａを進退方向に揺動させる操作手段３１から成る操作機構１６を設けた構成であるから、作業者は、操作機構１６を操作することにより、可動キャッチ手段１２Ａを連動して所定のロック位置ＬＰまで前進させることができる。 According to the present invention, in the configuration in which the movable catch means 12A having the freely movable jaw 13 is engaged with the horizontal member 3 by a one-touch operation, the operation hole 33 provided in the movable catch means 12A and the operation hole 33 are provided. The operating mechanism 29 is provided which includes the operating shaft 29 inserted through the operating shaft 31 and the operating means 31 that swings the movable catch means 12A in the advancing / retreating direction by moving the operating shaft 29. By operating the mechanism 16, the movable catch means 12 </ b> A can be advanced to a predetermined lock position LP in conjunction with the mechanism 16.

しかも、操作手段３１は、可動キャッチ手段１２Ａがロック位置ＬＰに位置する状態で、作動孔３３の内周縁のうち前進方向の前縁部３３ａに作動軸２９を当接すると共に、該作動軸２９を進不能に固定する構成であるから、作動孔３３と作動軸２９の間のクリアランスに起因して可動キャッチ手段１２Ａが若干でも後退することのない完全ロック状態が得られ、その結果、幅木装置１０が外力等により傾動するおそれはなく、強固な安定した取付状態を可能とする。 In addition, the operating means 31 abuts the operating shaft 29 on the front edge 33a in the forward direction of the inner peripheral edge of the operating hole 33 in a state where the movable catch means 12A is positioned at the lock position LP, and the operating shaft 29 is Since the structure is fixed so that it cannot advance, the movable catch means 12A is not fully retracted due to the clearance between the operating hole 33 and the operating shaft 29, and as a result, the baseboard device is obtained. There is no fear that 10 is tilted by an external force or the like, and a strong and stable mounting state is possible.

そして、可動キャッチ手段１２Ａを所定のロック位置ＬＰまで前進させる作業と、完全ロック状態とする作業は、操作機構１６の一連の操作により可能とされるので、作業性が極めて良好である。 The work for moving the movable catch means 12A forward to the predetermined locking position LP and the work for bringing the movable catch means 12A into the completely locked state are made possible by a series of operations of the operation mechanism 16, and therefore the workability is very good.

この際、請求項２に記載のように、作動軸２９から離隔した位置で幅木本体１１に設けられた基準軸３０と、前記作動軸２９と基準軸３０を連結するリンクアーム３１により操作手段を構成し、リンク軸３２により枢結した第１アーム３１ａと第２アーム３１ｂを屈折したとき可動キャッチ手段１２Ａを後退移動させ、伸長したとき可動キャッチ手段１２Ａを前進移動させるように構成しておけば、簡単な構成で操作機構１６と可動キャッチ手段１２Ａを連動連結することが可能となり、しかも、両アーム部３１ａ、３１ｂの伸長状態で作動軸２９を進退不能に固定すると共に作動孔２９の前記前縁部３３ａに当接させることにより、可動キャッチ手段１２Ａを完全ロックする構成が可能となる。 At this time, as described in claim 2, the operating means is provided by a reference shaft 30 provided on the baseboard body 11 at a position separated from the operation shaft 29, and a link arm 31 connecting the operation shaft 29 and the reference shaft 30. The movable catch means 12A is moved backward when the first arm 31a and the second arm 31b pivoted by the link shaft 32 are refracted, and the movable catch means 12A is moved forward when extended. Thus, the operation mechanism 16 and the movable catch means 12A can be interlocked and connected with a simple configuration, and the operating shaft 29 is fixed so as not to be able to advance and retract when both the arm portions 31a and 31b are extended. By making it contact with the front edge part 33a, the structure which fully locks the movable catch means 12A is attained.

そして、請求項３に記載のように、第１アーム部３１ａと第２アーム部３１ｂを伸長したとき、保持ピン４５を保持孔４７に嵌入することにより両アーム部３１ａ、３１ｂの屈折方向への復帰移動を阻止する固定保持手段４４を設ければ、可動キャッチ手段１２Ａを完全ロックした状態で、リンクアーム３１を好適に固定させることができる。 And when the 1st arm part 31a and the 2nd arm part 31b are extended | stretched as described in Claim 3, by inserting the holding | maintenance pin 45 in the holding hole 47, the refraction | bending direction of both the arm parts 31a and 31b is carried out. If the fixed holding means 44 for preventing the return movement is provided, the link arm 31 can be suitably fixed in a state where the movable catch means 12A is completely locked.

更に、請求項４に記載のように、第１アーム部３１ａと第２アーム部３１ｂのうち、一方のアーム部から他方のアーム部の上方に操作片４１を延設しておけば、両アーム部３１ａ、３１ｂが屈折された状態から、前記操作片４１を押動することにより、両アーム部３１ａ、３１ｂを伸長させることができるので、操作性が格段に向上する。 Furthermore, if the operation piece 41 is extended from one arm part above the other arm part among the 1st arm part 31a and the 2nd arm part 31b as described in Claim 4, both arms Since both the arm portions 31a and 31b can be extended by pushing the operation piece 41 from the state where the portions 31a and 31b are refracted, the operability is remarkably improved.

この際、請求項５に記載のように、前記操作片４１から弾性シート状の保護カバー４２を延設しておけば、両アーム部３１ａ、３１ｂの伸長時に重なり合う壁部の間に作業者が指を詰めて負傷する危険を好適に防止できる。 At this time, as described in claim 5, if an elastic sheet-like protective cover 42 is extended from the operation piece 41, an operator can move between the overlapping wall portions when the arms 31a and 31b extend. The risk of injury due to clogging of fingers can be suitably prevented.

足場構築体の１例を示しており、支柱に固設された横架材と足場板の関係を示す斜視図である。It is a perspective view which shows one example of a scaffold construction body and shows the relationship between the horizontal member fixed to the support | pillar, and a scaffold board. 本発明の１実施形態に係る幅木装置を部分的に示しており、可動キャッチ手段を横架材に係合する前の状態を示す斜視図である。It is a perspective view showing a state before a baseboard device concerning one embodiment of the present invention is partially shown, and engaging a movable catch means with a horizontal member. 幅木装置の可動キャッチ手段を横架材に係合した状態を示す斜視図である。It is a perspective view which shows the state which engaged the movable catch means of the baseboard apparatus with the horizontal member. 本発明に係る操作機構と完全ロック機構を原理的に示しており、可動キャッチ手段を後退させた状態を示す正面図である。It is a front view which shows the operation mechanism and complete lock mechanism which concern on this invention in principle, and shows the state which moved the movable catch means backward. 本発明に係る操作機構と完全ロック機構を原理的に示しており、可動キャッチ手段をロック位置に位置させた状態を示す正面図である。It is a front view which shows the operation mechanism and complete lock mechanism which concern on this invention in principle, and shows the state which located the movable catch means in the lock position. ロック位置における可動キャッチ手段の完全ロック状態を示す拡大図である。It is an enlarged view which shows the completely locked state of the movable catch means in a locked position. 本発明の１実施形態に係る幅木装置の全体を示す斜視図である。It is a perspective view showing the whole skirting board device concerning one embodiment of the present invention. 幅木装置における可動キャッチ手段と操作機構の分解状態を示す斜視図である。It is a perspective view which shows the disassembled state of the movable catch means and operation mechanism in a baseboard apparatus. 可動キャッチ手段と操作機構の作用を示しており、可動キャッチ手段を横架材に係合する前の状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the effect | action of a movable catch means and an operation mechanism, and shows the state before engaging a movable catch means with a horizontal member. 可動キャッチ手段と操作機構の作用を示しており、可動キャッチ手段を横架材に係合した状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the effect | action of a movable catch means and an operation mechanism, and shows the state which engaged the movable catch means with the horizontal member. 図１０のＡ−Ａ線断面図である。It is the sectional view on the AA line of FIG. 従来技術を示しており、（Ａ）は可動キャッチ手段を後退させた状態の正面図、（Ｂ）は可動キャッチ手段をロック位置に前進させロックした状態の正面図である。FIG. 2A is a front view of a state in which the movable catch means is retracted, and FIG. 2B is a front view of the state in which the movable catch means is advanced to the lock position and locked. 従来技術における可動キャッチ手段のロック状態を示す拡大図である。It is an enlarged view which shows the locked state of the movable catch means in a prior art.

以下図面に基づいて本発明の好ましい実施形態を詳述する。 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

図１ないし図３は、足場構築体の１例として、楔緊結構造を採用した仮設足場を示している。支柱１は、上下に所定間隔をあけてフランジ２を固設しており、建造物等の外壁に沿う方向（以下「桁方向」という）に所定間隔をあけて立設され、図示省略しているが、建造物等の外壁に対する遠近方向（以下「妻方向」という）に同様の支柱１が立設されており、妻方向に対応する支柱１の間に、横架材３が架設され、支柱１と横架材３は、相互に緊結手段４により固着される。 1 to 3 show a temporary scaffold that employs a wedge-tightening structure as an example of a scaffold construction. The support column 1 is fixed with a flange 2 at a predetermined interval in the vertical direction, and is vertically installed at a predetermined interval in a direction along the outer wall of a building or the like (hereinafter referred to as “girder direction”). However, a similar column 1 is erected in the perspective direction with respect to the outer wall of a building or the like (hereinafter referred to as “wife direction”), and a horizontal member 3 is installed between the columns 1 corresponding to the wife direction, The support column 1 and the horizontal member 3 are fixed to each other by the fastening means 4.

前記緊結手段４は、前記フランジ２に形成された楔孔５と、横架材３の端部に固設された二股状のブラケット６と、楔部材７により構成され、前記フランジ２を上下から挟むようにしてブラケット６を搭載した状態で、前記楔部材７をブラケット６及び楔孔５に貫通させることにより楔結合する。 The binding means 4 includes a wedge hole 5 formed in the flange 2, a bifurcated bracket 6 fixed to the end of the horizontal member 3, and a wedge member 7. In a state where the bracket 6 is mounted so as to be sandwiched, the wedge member 7 is wedge-coupled by passing through the bracket 6 and the wedge hole 5.

このようにして桁方向に並設された横架材３、３（図面は一方の横架材３だけを示す）に足場板８が架設され、これにより作業床を形成する。この際、足場板８は、両端部から桁方向に突出するフック手段９を横架材３に係合することにより係止固定される。従って、図示の支柱１を基準として、内側ＩＮに作業床を有する作業空間が形成され、外側ＯＵＴは外側空間とされる。 In this way, the scaffolding plate 8 is installed on the horizontal members 3 and 3 (the drawing shows only one horizontal member 3) arranged side by side in the girder direction, thereby forming a work floor. At this time, the scaffolding plate 8 is locked and fixed by engaging the hook member 9 protruding in the spar direction from both ends with the horizontal member 3. Accordingly, a work space having a work floor is formed on the inner side IN with the illustrated support column 1 as a reference, and the outer side is defined as the outer space.

上記は楔緊結構造を採用した足場構築体として公知の構成であるから、詳細な説明は省略する。 Since the above is a well-known structure as a scaffold construction employing a wedge-tightened structure, detailed description is omitted.

図２及び図３に示すように、幅木装置１０は、足場板８の外側空間に臨む側縁に沿って立設されるように構成され、幅木本体１１の両端部にキャッチ手段１２、１２を設けており、それぞれのキャッチ手段１２の下端部に形成した顎部１３を横架材３に係合することにより取付固定される。 As shown in FIGS. 2 and 3, the baseboard device 10 is configured to be erected along a side edge facing the outer space of the scaffolding plate 8, and catch means 12 at both ends of the baseboard body 11, 12 is provided, and is fixedly attached by engaging a chin 13 formed on the lower end of each catching means 12 with the horizontal member 3.

図７及び図８に示すように、各キャッチ手段１２の顎部１３は、妻方向に関して、足場板８のフック手段９の内側に臨む第１顎部１３ａと外側に臨む第２顎部１３ｂを並設しており、第１顎部１３ａは、円弧状凹部を形成する上顎１４ａと下顎１５ａにより横架材３の周面を上下から抱持する構成とされているが、第２顎部１３ｂは、上顎１４ｂが楔手段７と干渉しないように短く形成され、上顎１４ｂと下顎１５ｂにより横架材３の周面を上下から不完全な状態で抱持するように構成されている。 As shown in FIGS. 7 and 8, the jaws 13 of the catch means 12 have a first jaw 13a facing the inside of the hook means 9 of the scaffolding plate 8 and a second jaw 13b facing the outside in the wife direction. The first jaw 13a is arranged side by side, and is configured to hold the circumferential surface of the horizontal member 3 from above and below by the upper jaw 14a and the lower jaw 15a forming an arcuate recess, but the second jaw 13b The upper jaw 14b is formed short so as not to interfere with the wedge means 7, and the upper jaw 14b and the lower jaw 15b are configured to hold the peripheral surface of the horizontal member 3 in an incomplete state from above and below.

そこで、前記幅木本体１１の両端部に設けられたキャッチ手段１２、１２のうち少なくとも一方のキャッチ手段１２は、幅木本体１１に回動自在に枢結され、顎部１３を横架材３に対して進退移動自在とする可動キャッチ手段１２Ａを構成し、該可動キャッチ手段１２Ａに操作機構１６を設けている。図示実施形態の場合、他方のキャッチ手段１２は、幅木本体１１に回動不能に固設された固定キャッチ手段１２Ｂを構成しているが、キャッチ手段１２、１２の両方とも可動キャッチ手段１２Ａを構成し、それぞれに操作機構１６を設けても良い。 Therefore, at least one of the catch means 12 and 12 provided at both ends of the skirting board body 11 is pivotally connected to the skirting board body 11 so that the chin 13 is attached to the horizontal member 3. The movable catch means 12A is configured to be movable forward and backward, and the operation mechanism 16 is provided in the movable catch means 12A. In the case of the illustrated embodiment, the other catch means 12 constitutes a fixed catch means 12B fixed to the baseboard body 11 so as not to rotate, but both the catch means 12 and 12 have movable catch means 12A. The operation mechanism 16 may be provided for each.

図示実施形態において、幅木本体１１は、薄い金属板により形成され、帯状に延びる幅木壁部１７の上下縁部を外側空間（前記外側ＯＵＴ）に向けて断面ほぼＬ形に折曲することにより上レール部１８と下レール部１９を形成している。 In the illustrated embodiment, the skirting board body 11 is formed of a thin metal plate, and the upper and lower edges of the skirting board wall part 17 extending in a strip shape are bent in an approximately L-shaped cross section toward the outer space (the outer side OUT). Thus, the upper rail portion 18 and the lower rail portion 19 are formed.

前記キャッチ手段１２、１２のそれぞれは、横架材３に向けて開口する断面溝形の分厚い金属板により形成された縦枠部材２０と、幅木本体１１の両端部を嵌入させる断面溝形の金属板により形成された剛性の支持部材２１を、相互に背合わせ状態でリベット等の固着手段により結合しており、前記縦枠部材２０の下端部に前記顎部１３を形成している。 Each of the catch means 12, 12 has a cross-sectional groove shape in which the vertical frame member 20 formed of a thick metal plate having a cross-sectional groove shape opening toward the horizontal member 3 and both ends of the baseboard body 11 are fitted. Rigid support members 21 formed of metal plates are coupled to each other by a fixing means such as a rivet in a back-to-back state, and the jaw portion 13 is formed at the lower end portion of the vertical frame member 20.

図示実施形態の場合、固定キャッチ手段１２Ｂは、支持部材２１の溝部に幅木本体１１の端部を嵌入すると共に、嵌入された幅木本体１１の上下レール部１８、１９とこれに対向する幅木壁部１７を貫通するリベット等の固着手段により固着される。 In the case of the illustrated embodiment, the fixed catch means 12 </ b> B inserts the end portion of the baseboard body 11 into the groove portion of the support member 21, and the upper and lower rail portions 18 and 19 of the inserted baseboard body 11 and the widths facing this. It is fixed by fixing means such as a rivet that penetrates the wooden wall portion 17.

これに対して、可動キャッチ手段１２Ａは、支持部材２１の溝部に幅木本体１１の端部を浅く嵌入した状態で、顎部１３の上方に位置する枢軸２２により幅木本体１１に回動自在に枢結され、顎部１３を横架材３に対して図示矢印で示す前進方向Ｆと後退方向Ｒに関して進退移動自在とするように構成されている。 On the other hand, the movable catch means 12 </ b> A is rotatable to the skirting board body 11 by the pivot 22 positioned above the jaw part 13 with the end of the skirting board body 11 being shallowly fitted in the groove of the support member 21. The jaw portion 13 is configured to be movable forward and backward with respect to the horizontal member 3 with respect to the forward direction F and the backward direction R indicated by the illustrated arrows.

図例の場合、支持部材２１と、該支持部材の溝部に浅く嵌入された幅木本体１１の端部は、上レール部１８とこれに対向する幅木壁部１７を貫通するボルト等から成る枢軸２２により枢結され、支持部材２１の上端近傍部を支点Ｃとして、支持部材２１と縦枠部材２０の全体を揺動可能とする。このため、図８に示すように、支持部材２１と幅木本体１１（上レール部１８及び幅木壁部１７）にそれぞれ軸支孔２３、２４が設けられている。 In the case of the illustrated example, the support member 21 and the end portion of the baseboard body 11 that is shallowly fitted in the groove portion of the support member are composed of an upper rail portion 18 and a bolt or the like that penetrates the baseboard wall portion 17 facing this. The entire support member 21 and the vertical frame member 20 are swingable with the pivot 22 being pivoted, with the vicinity of the upper end of the support member 21 as a fulcrum C. For this reason, as shown in FIG. 8, shaft support holes 23 and 24 are provided in the support member 21 and the skirting board main body 11 (the upper rail part 18 and the skirting board wall part 17), respectively.

この際、支持部材２１の下端近傍部には、前記揺動を必要な範囲でのみ可能とする揺動規制手段２５を設けることが好ましく、図例の場合、幅木本体１１（下レール部１９及び幅木壁部１７）に形成した軸孔２６と、支持部材２１の下端近傍部に前記揺動方向に向けて形成した長孔２７を合致させた状態で、ボルト等のピン２８を挿通させることにより、可動キャッチ手段１２Ａの揺動ストロークを長孔２７の範囲で行わせる。 At this time, it is preferable to provide a swing restricting means 25 that enables the swing within the necessary range in the vicinity of the lower end of the support member 21. In the case of the figure, the baseboard body 11 (the lower rail portion 19) is provided. In addition, a pin 28 such as a bolt is inserted in a state where the shaft hole 26 formed in the baseboard wall portion 17) and the long hole 27 formed in the vicinity of the lower end of the support member 21 toward the swinging direction are matched. Thus, the swing stroke of the movable catch means 12 </ b> A is made within the range of the long hole 27.

（操作機構の原理的構成）
図４及び図５に示すように、前記操作機構１６は、可動キャッチ手段１２Ａに開設した作動孔３３と、前記作動孔３３に挿通された作動軸２９と、前記作動軸２９を移動することにより可動キャッチ手段１２Ａを進退方向に揺動させる操作手段３１により構成されている。操作手段３１は、前記作動軸２９と、該作動軸２９から離隔した位置で幅木本体１１に設けられた基準軸３０との間に設けられており、基準軸３０を基準位置として、作動軸２９を進退移動することにより、可動キャッチ手段１２Ａを前進方向Ｆと後退方向Ｒに関して進退揺動させる。従って、操作手段３１は、後述する実施形態の場合、屈伸自在なリンクアームにより構成されているが、これに限定されるものではなく、作業者が操作することにより、基準軸３０からの距離を変えるように作動軸２９を移動させる機械的構成のものであれば良い。 (Principle structure of operation mechanism)
As shown in FIGS. 4 and 5, the operating mechanism 16 moves the operating shaft 29, the operating hole 33 opened in the movable catch means 12 A, the operating shaft 29 inserted through the operating hole 33, and the operating shaft 29. The operation means 31 is configured to swing the movable catch means 12A in the forward / backward direction. The operating means 31 is provided between the operating shaft 29 and a reference shaft 30 provided on the baseboard body 11 at a position spaced apart from the operating shaft 29. The operating shaft 31 is used as a reference position. By moving 29 forward and backward, the movable catch means 12A is rocked forward and backward in the forward direction F and the backward direction R. Therefore, in the case of the embodiment described later, the operation means 31 is constituted by a link arm that can be bent and extended. However, the operation means 31 is not limited to this, and the distance from the reference axis 30 can be increased by an operator's operation. Any mechanical structure may be used as long as the operating shaft 29 is moved so as to change.

従って、可動キャッチ手段１２Ａは、操作手段３１の操作により移動する作動軸２９を介して、図４に示す後退位置から図５に示すように前進し、所定位置まで前進したロック位置ＬＰで顎部１３を横架材３に係合する。 Therefore, the movable catch means 12A moves forward from the retracted position shown in FIG. 4 as shown in FIG. 5 via the operating shaft 29 moved by the operation of the operating means 31, and moves to the predetermined position at the lock position LP. 13 is engaged with the horizontal member 3.

そこで、操作機構１６は、図６に示すように、可動キャッチ手段１２Ａが前記ロック位置ＬＰに位置する状態で、作動孔３３の内周縁のうち前進方向の前縁部３３ａに作動軸２９を当接させ、その当接状態で作動軸２９を進退不能に固定するように構成されている。従って、作動孔３３の前縁部３３ａと作動軸２９の間のクリアランスＣＬは無（ゼロ）とされ、可動キャッチ手段１２Ａは、僅かでも後退方向Ｒに移動することのない完全ロック状態とされる。 Therefore, as shown in FIG. 6, the operating mechanism 16 contacts the operating shaft 29 against the front edge 33a in the forward direction of the inner peripheral edge of the operating hole 33 in a state where the movable catch means 12A is located at the lock position LP. The operating shaft 29 is fixed so as not to advance and retreat in the contact state. Accordingly, the clearance CL between the front edge portion 33a of the operating hole 33 and the operating shaft 29 is not (zero), and the movable catch means 12A is in a completely locked state that does not move in the backward direction R even a little. .

尚、図例の場合、可動キャッチ手段１２Ａがロック位置ＬＰに位置した状態で、揺動規制手段２５を構成する長孔２７の内周縁のうち後退方向の後縁部２７ａがピン２８に当接することにより、可動キャッチ手段１２Ａの前進方向の移動を阻止しているが、本発明の目的は、可動キャッチ手段１２Ａの後退方向の移動を阻止することであるから、前進方向の移動阻止は、必ずしも必須要件ではない。 In the case of the illustrated example, the rear edge 27a of the retreating direction of the inner periphery of the long hole 27 constituting the swing restricting means 25 contacts the pin 28 in a state where the movable catch means 12A is positioned at the lock position LP. Therefore, the movement of the movable catch means 12A in the forward direction is prevented, but the object of the present invention is to prevent the movement of the movable catch means 12A in the backward direction. It is not a requirement.

（操作機構の具体的構成）
図７及び図８に示すように、上記操作手段３１は、前記作動軸２９と基準軸３０を連結するリンクアーム３１により構成されており、前記リンクアーム３１は、作動軸２９から延びる第１アーム部３１ａと、基準軸３０から延びる第２アーム部３１ｂにより構成され、両アーム部３１ａ、３１ｂの対向する端部をリンク軸３２により枢結している。 (Specific configuration of operation mechanism)
As shown in FIGS. 7 and 8, the operating means 31 is constituted by a link arm 31 that connects the operating shaft 29 and the reference shaft 30, and the link arm 31 is a first arm extending from the operating shaft 29. The second arm portion 31 b extending from the reference shaft 30 is connected to the opposite end portions of the arm portions 31 a and 31 b by the link shaft 32.

図示実施形態の場合、第１アーム部３１ａは、基端部に枢支孔３４を形成し、前記長孔２７の近傍上方に位置して支持部材２１に形成した作動孔３３に対して、ボルト等から成る作動軸２９を軸支することにより枢結される。 In the case of the illustrated embodiment, the first arm portion 31 a has a pivot hole 34 at the base end, and is bolted with respect to the operating hole 33 formed in the support member 21 located above the elongated hole 27. It is pivotally connected by pivotally supporting an operating shaft 29 composed of, for example.

また、第２アーム部３１ｂは、基端部に枢支孔３６を形成し、幅木本体１１（上レール部１８及び幅木壁部１７）に形成した軸支孔３５に対して、ボルト等から成る基準軸３０を軸支することにより枢結される。 Further, the second arm portion 31b has a pivot hole 36 formed at the base end portion thereof, and a bolt or the like with respect to the shaft support hole 35 formed in the skirting board main body 11 (the upper rail portion 18 and the skirting board wall portion 17). The reference shaft 30 is pivotally supported by supporting it.

第１アーム部３１ａと第２アーム部３１ｂは、金属板により相互に嵌合自在とされる断面溝形に形成され、少なくとも対向端部における上壁と側壁が重なるように構成し、それぞれの側壁に形成した枢支孔３７、３８をボルト等から成るリンク軸３２により軸支している。図例の場合、第１アーム部３１ａの上壁３９を第２アーム部３１ｂの上壁４０の上に重なるように配置し、第１アーム部３１ａの上壁３９により操作片４１を構成し、更に、該操作片４１から第２アーム部３１ｂの上壁４０に重なるように延長される弾性シート状の保護カバー４２を設けている。 The first arm portion 31a and the second arm portion 31b are formed in a cross-sectional groove shape that can be fitted to each other by a metal plate, and are configured such that at least the upper wall and the side wall at the opposite end overlap each other. Are pivotally supported by a link shaft 32 made of bolts or the like. In the case of the illustrated example, the upper wall 39 of the first arm portion 31a is disposed so as to overlap the upper wall 40 of the second arm portion 31b, and the operation piece 41 is constituted by the upper wall 39 of the first arm portion 31a. Further, an elastic sheet-like protective cover 42 is provided that extends from the operation piece 41 so as to overlap the upper wall 40 of the second arm portion 31b.

これにより、操作機構１６は、可動キャッチ手段１２Ａに連動連結され、リンク軸３２の上昇を介して第１アーム部３１ａと第２アーム部３１ｂを山形状に屈折させると、可動キャッチ手段１２Ａが矢印Ｒ方向に後退し、前記保護カバー４２の上から操作片４１を押下することによりリンク軸３２の下降を介して第１アーム部３１ａと第２アーム部３１ｂを伸長させると、可動キャッチ手段１２Ａが矢印Ｆ方向に前進する。 Thereby, the operation mechanism 16 is interlocked and connected to the movable catch means 12A, and when the first arm portion 31a and the second arm portion 31b are refracted into a mountain shape through the rise of the link shaft 32, the movable catch means 12A is moved to an arrow. When the first arm portion 31a and the second arm portion 31b are extended through the downward movement of the link shaft 32 by retreating in the R direction and pressing the operation piece 41 from above the protective cover 42, the movable catch means 12A Move forward in the direction of arrow F.

図例の構成の場合、可動キャッチ手段１２Ａの揺動と共に作動軸２９が移動するので、該作動軸２９を移動自在に挿通させる長孔から成るガイド孔４３を幅木本体１１の幅木壁部１７に形成している。 In the case of the configuration shown in the figure, since the operating shaft 29 moves as the movable catch means 12A swings, the guide hole 43, which is a long hole through which the operating shaft 29 is movably inserted, is formed in the baseboard wall portion of the baseboard body 11. 17 is formed.

第１アーム部３１ａと第２アーム部３１ｂは、ほぼ直線上に伸長させられると、上述のように、可動キャッチ手段１２Ａを前記ロック位置ＬＰに前進させると共に、作動軸２９を作動孔３３の前縁部３３ａに当接させた状態で進退不能に固定し、これにより可動キャッチ手段１２Ａを後退不能に完全ロックする。 When the first arm portion 31a and the second arm portion 31b are extended substantially in a straight line, the movable catch means 12A is advanced to the lock position LP as described above, and the operating shaft 29 is moved in front of the operating hole 33. The movable catch means 12A is completely locked so as not to be retracted by fixing the movable catch means 12A so as not to be able to advance and retract in a state where it is in contact with the edge 33a.

前記完全ロック状態は、作動軸２９と基準軸３０の間で、第１アーム部３１ａと第２アーム部３１ｂの突っ張りにより伸長状態を保持させることにより持続可能であるが、図示実施形態のように、伸長状態のリンクアーム３１を幅木本体１１に着脱自在に固定保持する固定保持手段４４を設けることが好ましい。図示実施形態の場合、幅木本体１１の幅木壁部１７に向けて進退自在な保持ピン４５を第２アーム部３１ｂに設け、該保持ピン４５をスプリング４６により進出方向に弾発付勢しており、リンクアーム３１が上記のような伸長状態とされたとき、保持ピン４５を嵌入させる保持孔４７を幅木壁部１７に形成している。 The complete lock state can be maintained by maintaining an extended state between the operating shaft 29 and the reference shaft 30 by stretching the first arm portion 31a and the second arm portion 31b, but as in the illustrated embodiment. It is preferable to provide a fixing and holding means 44 for detachably fixing and holding the extended link arm 31 to the skirting board main body 11. In the case of the illustrated embodiment, the second arm portion 31b is provided with a holding pin 45 that can move forward and backward toward the baseboard wall portion 17 of the baseboard body 11, and the holding pin 45 is elastically biased in the advance direction by a spring 46. When the link arm 31 is in the extended state as described above, a holding hole 47 into which the holding pin 45 is fitted is formed in the baseboard wall portion 17.

従って、第１アーム部３１ａの枢支孔３４と第２アーム部３１ｂを屈折させた状態で、保持ピン４５は、保持孔４７から外れた個所で幅木壁部１７に当接しているが、上述のように両アーム部３１ａ、３１ｂを伸長させると、保持ピン４５は、保持孔４７に臨み、スプリング４６により保持孔４７に嵌入させられ、両アーム部３１ａ、３１ｂの屈折方向への復帰移動を阻止することにより、可動キャッチ手段１２Ａの完全ロック状態を維持する。 Therefore, the holding pin 45 is in contact with the skirting wall portion 17 at a position removed from the holding hole 47 in a state where the pivot support hole 34 and the second arm portion 31b of the first arm portion 31a are refracted. When both arm portions 31a and 31b are extended as described above, the holding pin 45 faces the holding hole 47 and is fitted into the holding hole 47 by the spring 46, so that both arm portions 31a and 31b move back in the bending direction. This prevents the movable catch means 12A from being completely locked.

上記構成に基づく幅木装置１０は、横架材３に取付ける際、図９に示すように、リンクアーム３１を屈折することにより可動キャッチ手段１２Ａを図示矢印Ｒ１で示すように後退方向に揺動させ、顎部１３を図示矢印Ｒ２で示すように横架材３から後退した状態で該横架材３に臨ませられる。この状態から、図１０に示すように、保護カバー４２の上からリンクアーム３１の操作片４１を押下すると、リンクアーム３１の伸長に連動して可動キャッチ手段１２Ａが図示矢印Ｆ１で示すように前進方向に揺動し、顎部１３を図示矢印Ｆ２で示すように横架材３に向けて前進させ、該横架材３に係合する。この伸長時に第１アーム部３１ａの操作片４１が第２アーム部３１ｂの上壁４０に重なり合うが、その重なり合い部分は弾性シート状の保護カバー４２で被われているので、作業者が指を詰めて負傷する危険を防止する。 When the baseboard device 10 based on the above configuration is attached to the horizontal member 3, as shown in FIG. 9, the movable catch means 12A is swung in the backward direction as indicated by the arrow R1 by refracting the link arm 31. Then, the jaw 13 is made to face the horizontal member 3 in a state of being retracted from the horizontal member 3 as indicated by an arrow R2. In this state, as shown in FIG. 10, when the operation piece 41 of the link arm 31 is pushed down from above the protective cover 42, the movable catch means 12A moves forward as shown by the arrow F1 in conjunction with the extension of the link arm 31. Swing in the direction, the jaw 13 is advanced toward the horizontal member 3 as shown by the arrow F2 in the figure, and is engaged with the horizontal member 3. During this extension, the operation piece 41 of the first arm portion 31a overlaps the upper wall 40 of the second arm portion 31b. Since the overlapped portion is covered with an elastic sheet-like protective cover 42, the operator closes his / her finger. Prevent the risk of injury.

操作片４１を強く押動すると、作動軸２９と基準軸３０の間でリンクアーム３１が完全に伸長し、上述のように作動軸２９を作動孔３３の前縁部３３ａに当接させ、これにより可動キャッチ手段１２Ａを後退不能に完全ロックする。これと同時に、固定保持手段４４の保持ピン４５が保持孔４７に嵌入することにより伸長状態のリンクアーム３１を幅木本体１１に固定保持する。 When the operating piece 41 is pushed strongly, the link arm 31 is completely extended between the operating shaft 29 and the reference shaft 30, and the operating shaft 29 is brought into contact with the front edge portion 33a of the operating hole 33 as described above. Thus, the movable catch means 12A is completely locked so as not to be retracted. At the same time, when the holding pin 45 of the fixing holding means 44 is fitted into the holding hole 47, the extended link arm 31 is fixedly held on the baseboard body 11.

従って、可動キャッチ手段１２Ａは、顎部１３を横架材３に係合するロック位置ＬＰで、進退方向に全く移動不能な完全ロック状態とされるので、上述のように第２顎部１３ｂの上顎１４ｂが短く形成された構成であっても、幅木装置１０が外力等により傾動するおそれはなく、強固な安定した取付状態を保持する。 Accordingly, the movable catch means 12A is in a completely locked state where it cannot move in the advancing and retreating direction at the lock position LP where the jaw portion 13 is engaged with the horizontal member 3, so that the second jaw portion 13b can be moved as described above. Even if the upper jaw 14b is configured to be short, the baseboard device 10 is not likely to be tilted by an external force or the like, and a strong and stable mounting state is maintained.

足場構築体の解体等に際し、幅木装置１０を横架材３から取外すときは、幅木壁部１７の内側（作業空間側）から保持ピン４４を押し込み、外側（外側空間）からリンクアーム３１を屈折移動して保持ピン４４を保持孔４７から脱出させると、リンクアーム３１が屈折自在な状態とされ、可動キャッチ手段１２Ａが揺動自在な状態とされるので、顎部１３を後退させ、横架材３に対する係合を解き、幅木装置１０を取外せば良い。 When removing the baseboard device 10 from the horizontal member 3 when the scaffold structure is disassembled, the holding pin 44 is pushed in from the inner side (working space side) of the baseboard wall portion 17 and the link arm 31 from the outer side (outer space). When the holding pin 44 is withdrawn from the holding hole 47, the link arm 31 is bent, and the movable catch means 12A is allowed to swing. The engagement with the horizontal member 3 may be released and the baseboard device 10 may be removed.

１ 支柱
２ フランジ
３ 横架材
４ 緊結手段
７ 楔手段
８ 足場板
９ フック手段
１０ 幅木装置
１１ 幅木本体
１２ キャッチ手段
１２Ａ 可動キャッチ手段
１２Ｂ 固定キャッチ手段
１３ 顎部
１６ 操作機構
２２ 枢軸
２３、２４ 軸支孔
２９ 作動軸
３０ 基準軸
３１ 操作手段（リンクアーム）
３１ａ 第１アーム部
３１ｂ 第２アーム部
３２ リンク軸
３３ 作動孔 DESCRIPTION OF SYMBOLS 1 Support | pillar 2 Flange 3 Horizontal member 4 Tightening means 7 Wedge means 8 Scaffold plate 9 Hook means 10 Baseboard device 11 Baseboard body 12 Catch means 12A Movable catch means 12B Fixed catch means 13 Jaw 16 Operation mechanism 22 Axis 23, 24 Shaft support hole 29 Actuating shaft 30 Reference shaft 31 Operating means (link arm)
31a First arm portion 31b Second arm portion 32 Link shaft 33 Operating hole

Claims (5)

並設された横架材に架設される足場板の側縁に沿って立設される幅木であり、幅木本体(11)の両端部に前記横架材(3)に係合する顎部(13)を備えたキャッチ手段(12)(12)を設け、前記幅木本体の両端部のキャッチ手段のうち少なくとも一方のキャッチ手段は、顎部(13)の上方に位置する枢軸(22)により幅木本体(11)に枢結され、該顎部(13)を前記横架材(3)に対して後退位置と前進位置の間で進退移動自在に揺動させると共に所定位置まで前進したロック位置(LP)で横架材(3)に係合させる可動キャッチ手段(12A)を構成する幅木装置において、
前記可動キャッチ手段(12A)に開設した作動孔(33)と、前記作動孔(33)に挿通された作動軸(29)と、前記作動軸(29)を移動することにより可動キャッチ手段(12A)を進退方向に揺動させる操作手段(31)から成る操作機構(16)を設け、
前記操作手段(31)は、可動キャッチ手段(12A)が前記ロック位置(LP)に位置する状態で、作動孔(33)の内周縁のうち前進方向の前縁部(33a)に作動軸(29)を当接すると共に、該作動軸(29)を進退不能に固定するように構成されて成ることを特徴とする足場における幅木装置。 Jaw that is erected along the side edge of the scaffolding plate laid on the side-by-side horizontal member, and engages with the horizontal member (3) at both ends of the skirting body (11) Catch means (12) (12) provided with a portion (13) is provided, and at least one of the catch means at both ends of the baseboard body is a pivot (22) located above the jaw (13). ) Is pivotally connected to the skirting board body (11), and the jaw (13) is swung movably forward and backward between the retracted position and the advanced position with respect to the horizontal member (3) and advanced to a predetermined position. In the baseboard device constituting the movable catch means (12A) to be engaged with the horizontal member (3) at the locked position (LP),
An operating hole (33) established in the movable catch means (12A), an operating shaft (29) inserted through the operating hole (33), and a movable catch means (12A by moving the operating shaft (29)) ) Is provided with an operating mechanism (16) consisting of operating means (31) that swings in the forward and backward direction,
The operating means (31) is configured such that the movable catch means (12A) is located at the lock position (LP), and the operating shaft (at the front edge portion (33a) in the forward direction of the inner peripheral edge of the operating hole (33) ( A baseboard device in a scaffold, which is configured to abut on 29) and to fix the operating shaft (29) so as not to advance or retreat. 前記操作手段は、前記作動軸(29)から離隔した位置で幅木本体(11)に設けられた基準軸(30)と、前記作動軸(29)と基準軸(30)を連結するリンクアーム(31)により構成され、
前記リンクアーム(31)は、作動軸(29)から延びる第１アーム部(31a)と、基準軸(30)から延びる第２アーム部(31b)により構成され、両アーム部の対向する端部をリンク軸(32)により枢結し、前記リンク軸(32)を介して両アーム部(31a)(31b)を屈折したとき可動キャッチ手段(12A)を後退移動させ、両アーム部(31a)(31b)を伸長したとき可動キャッチ手段(12A)を前進移動させるように可動キャッチ手段(12A)に連動連結され、伸長状態で作動軸(29)を進退不能に固定すると共に作動孔(29)の前記前縁部(33a)に当接させるように構成されて成ることを特徴とする請求項１に記載の足場における幅木装置。 The operating means includes a reference shaft (30) provided on the baseboard body (11) at a position spaced from the operation shaft (29), and a link arm connecting the operation shaft (29) and the reference shaft (30). (31)
The link arm (31) includes a first arm portion (31a) extending from the operating shaft (29) and a second arm portion (31b) extending from the reference shaft (30). When the two arm portions (31a) and (31b) are refracted through the link shaft (32), the movable catch means (12A) is moved backward to move both arm portions (31a). When (31b) is extended, the movable catch means (12A) is interlocked with the movable catch means (12A) so that the movable catch means (12A) moves forward, and the operating shaft (29) is fixed so as not to advance and retract in the extended state, and the operating hole (29) The baseboard device for a scaffold according to claim 1, wherein the baseboard device is configured to abut on the front edge portion (33a). 前記第１アーム部(31a)と第２アーム部(31b)を伸長したとき、保持ピン(45)を保持孔(47)に嵌入することにより両アーム部(31a)(31b)の屈折方向への復帰移動を阻止する固定保持手段(44)を設けて成ることを特徴とする請求項２に記載の足場における幅木装置。 When the first arm portion (31a) and the second arm portion (31b) are extended, the holding pin (45) is fitted into the holding hole (47) to move the both arm portions (31a) (31b) in the refraction direction. The baseboard device for a scaffold according to claim 2, further comprising a fixed holding means (44) for preventing the return movement of the scaffold. 第１アーム部(31a)と第２アーム部(31b)のうち、一方のアーム部が他方のアーム部の上方に延長された操作片(41)を設けており、該操作片(41)を介して両アーム部(31a)(31b)の屈折又は伸長を行うように構成して成ることを特徴とする請求項２又は３に記載の足場における幅木装置。 Of the first arm part (31a) and the second arm part (31b), one arm part is provided with an operation piece (41) extending above the other arm part, and the operation piece (41) is provided. The baseboard device for a scaffold according to claim 2 or 3, wherein the arm portions (31a) and (31b) are configured to bend or extend through each of the arms. 前記一方のアーム部に設けられた操作片(41)から更に他方のアーム部の上方に延長された弾性シート状の保護カバー(42)を設けて成ることを特徴とする請求項４に記載の足場における幅木装置。 The elastic sheet-like protective cover (42) extended further from the operation piece (41) provided in the said one arm part above the other arm part is provided. Skirting equipment in scaffolding.
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