WO2021024451A1 - Spring pin detaching/attaching jig - Google Patents

Spring pin detaching/attaching jig Download PDF

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Publication number
WO2021024451A1
WO2021024451A1 PCT/JP2019/031345 JP2019031345W WO2021024451A1 WO 2021024451 A1 WO2021024451 A1 WO 2021024451A1 JP 2019031345 W JP2019031345 W JP 2019031345W WO 2021024451 A1 WO2021024451 A1 WO 2021024451A1
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WO
WIPO (PCT)
Prior art keywords
spring pin
pull
hole
bolt
shaft
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PCT/JP2019/031345
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French (fr)
Japanese (ja)
Inventor
和雄 笹島
勝利 北
Original Assignee
三菱電機ビルテクノサービス株式会社
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Application filed by 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機ビルテクノサービス株式会社
Priority to JP2019556370A priority Critical patent/JP6804669B1/en
Priority to CN201980098786.6A priority patent/CN114206554B/en
Priority to PCT/JP2019/031345 priority patent/WO2021024451A1/en
Publication of WO2021024451A1 publication Critical patent/WO2021024451A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/08—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing cotter pins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/20—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same inserting or withdrawing split pins or circlips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/28—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing resilient bushings or the like

Definitions

  • the present invention relates to a spring pin attachment / detachment jig for attaching / detaching a spring pin that fits into a through hole of a work.
  • the spring pin attachment / detachment jig is a spring pin attachment / detachment jig for attaching / detaching a spring pin fitted in a through hole of a work from one side to the other side, and engages with the other side of the work to form a center.
  • the spring pin attachment / detachment jig According to the spring pin attachment / detachment jig according to the present invention, the spring pin can be easily attached / detached because it is small enough to fit in the palm of an operator.
  • the connecting shaft 93 and the angle adjusting lever 94 will be collectively referred to as a work W
  • the through hole 93A of the connecting shaft 93 and the through hole 94A of the angle adjusting lever 94 will be collectively referred to as a through hole WH. ..
  • FIGS. 2 and 3 are side sectional views showing the attachment / detachment jig 10.
  • each component is disassembled and shown for the sake of clarity.
  • the base cylinder 20 is formed in a substantially tubular shape, and a bolt hole 20A is formed on the central shaft.
  • a pair of claw portions 20B are formed on one end side of the base cylinder 20.
  • the pair of claw portions 20B are in a direction orthogonal to the axial direction of the work W (for example, in the case of the angle adjusting lever 94, the angle adjusting lever 94). It engages with both end faces (in the width direction of). According to the claw portion 20B, it is possible to prevent the base cylinder 20 from rotating about the axis with respect to the work W.
  • a head 40H having a diameter smaller than the diameter of the through hole WH and larger than the inner hole diameter of the spring pin SP is formed on one side of the punching shaft 40.
  • the diameter of the punch shaft 40 shall be slightly smaller than the inner hole diameter of the spring pin and the punch shaft through hole 30A.
  • the length of the pull-out shaft 40 shall be sufficiently longer than the total length of the spring pin SP and the pull-out bolt 30.
  • the operator inserts the extraction shaft 40 from one side of the work W into the inner hole of the spring pin SP and the extraction shaft through hole 30A of the extraction bolt 30.
  • the operator first loosely fits a plurality of washers 51 into the pull-out shaft 40, screwes the fixing nut 50 into the pull-out shaft 40, and pulls out the pull-out shaft 40 and the fixing nut 50.
  • the spring pin SP and the pull-out bolt 30 To fasten the spring pin SP and the pull-out bolt 30.
  • by further tightening the wing nut 52 on the other side of the fixing nut 50 it is possible to prevent the fixing nut 50 from coming off.
  • the operator inserts the inner hole of the spring pin SP into one side of the extraction shaft 40, and inserts the extraction shaft 40 from one side of the work W into the through hole WH of the work W and the extraction shaft through hole 30A of the extraction bolt 30. Let it be inserted.
  • the operator screwes the fixing nut 50 on the other side of the pull-out bolt 30 via a plurality of washers 51, and fastens the spring pin SP and the pull-out bolt 30 by the pull-out shaft 40 and the fixing nut 50.
  • the other end of the spring pin SP is preferably engaged with one side of the through hole WH of the work W.
  • the wing nut 52 is further tightened on the other side of the fixing nut 50 to prevent the fixing nut 50 from coming off.
  • the operator separates the pull-out bolt 30 from the base cylinder 20 by rotating the pull-out bolt 30 with a tool such as a ratchet wrench.
  • a tool such as a ratchet wrench.
  • the spring pin SP fastened to the pull-out bolt 30 by the pull-out shaft 40 and the fixing nut 50 moves together with the pull-out bolt 30 and is pushed into the through hole WH of the work W.
  • the washers 51 slide with each other and are affected by the friction between the head of the pull-out bolt 30 and the fixing nut 50.
  • the pull-out bolt 30 can be smoothly rotated without any problem.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Braking Arrangements (AREA)
  • Escalators And Moving Walkways (AREA)

Abstract

A detaching/attaching jig (10) for detaching and attaching a spring pin (SP), fitted into a through-hole (WH) of a workpiece (W), from one side to the other side includes: a base cylinder (20) engaged with the other side of the workpiece (W) and having a bolt-hole (20A) formed along a central axis; an extracting bolt (30) screwed into the bolt-hole (20A) of the base cylinder (20) and having a drawing shaft through-hole (30A) formed along the central axis; a drawing shaft (40) having a head (40H) with a diameter smaller than a diameter of the through-hole (WH) and larger than an inner hole diameter of the spring pin (SP), and inserted into an inner hole of the spring pin (SP) and the drawing shaft through-hole (30A) from one side of the spring pin (SP); and a fixing nut (50) for fastening the drawing shaft (40) and the extracting bolt (30) together on the other side beyond the extracting bolt (30).

Description

スプリングピン脱着治具Spring pin attachment / detachment jig
　本発明は、ワークの貫通孔に嵌合するスプリングピンを脱着するスプリングピン脱着治具に関する。 The present invention relates to a spring pin attachment / detachment jig for attaching / detaching a spring pin that fits into a through hole of a work.
　複数のワークを貫通する貫通孔に嵌合し、複数のワーク同士を固定するスプリングピンは、広く知られている。例えば、エスカレーターの非常制動装置では、角度調整レバーと連結軸とがスプリングピンによって固定されている。非常制動装置を交換する際には、連結軸から角度調整レバーを取り外す必要がある。連結軸から角度調整レバーを取り外す際には、連結軸と角度調整レバーとを固定するスプリングピンを取り外す必要がある。 A spring pin that fits into a through hole that penetrates a plurality of workpieces and fixes the plurality of workpieces to each other is widely known. For example, in an escalator emergency braking device, the angle adjusting lever and the connecting shaft are fixed by a spring pin. When replacing the emergency braking device, it is necessary to remove the angle adjustment lever from the connecting shaft. When removing the angle adjusting lever from the connecting shaft, it is necessary to remove the spring pin that fixes the connecting shaft and the angle adjusting lever.
　例えば、特許文献１には、スプリングピンの使用例として、オートバイのブレーキを操作するプッシュロッドの端部に、ブレーキレバーの開き角を調整する調整ダイヤルが取り付けられ、調整ダイヤルとプッシュロッドとを固定するスプリングピン、および、このスプリングピンの着脱に用いられるピン脱着工具が開示される。 For example, in Patent Document 1, as an example of using a spring pin, an adjustment dial for adjusting the opening angle of the brake lever is attached to the end of a push rod for operating a motorcycle brake, and the adjustment dial and the push rod are fixed. A spring pin to be used and a pin attachment / detachment tool used to attach / detach the spring pin are disclosed.
特開２０１２－１６７６５号公報Japanese Unexamined Patent Publication No. 2012-16765
　しかし、連結軸と角度調整レバーとを固定するスプリングピンを取り外す作業は、エスカレーターの場合には、トラス内で行われる。そのため、特許文献１のピン着脱工具のような大型の工具を操作するスペースがない。そこで、作業者の手のひらに収まる程度の小型のスプリングピン脱着治具が望まれている。 However, in the case of an escalator, the work of removing the spring pin that fixes the connecting shaft and the angle adjustment lever is performed inside the truss. Therefore, there is no space for operating a large tool such as the pin attachment / detachment tool of Patent Document 1. Therefore, a small spring pin attachment / detachment jig that fits in the palm of an operator is desired.
　本発明は、作業者の手のひらに収まる程度の小型であってスプリングピンを容易に取り外すことができるスプリングピン脱着治具を提供することを目的とする。 An object of the present invention is to provide a spring pin attachment / detachment jig that is small enough to fit in the palm of an operator and that allows the spring pin to be easily removed.
　本発明に係るスプリングピン脱着治具は、ワークの貫通孔に嵌合されたスプリングピンを一側から他側へ脱着するスプリングピン脱着治具であって、ワークの他側に係合し、中心軸に沿ってボルト孔が形成される基筒と、基筒のボルト孔に螺合し、中心軸に沿って抜き軸貫通孔が形成される引き抜きボルトと、貫通孔の径よりも小さくかつスプリングピンの内孔径よりも大きい径の頭部を有し、スプリングピンの一側からスプリングピンの内孔と抜き軸貫通孔とに挿通される抜き軸と、引き抜きボルトよりも他側において抜き軸と引き抜きボルトとを締結する固定子と、を備え、引き抜きボルトを回転させて基筒から引き抜きボルトを離間させることによって、スプリングピンを他側へ脱着することを特徴とする。 The spring pin attachment / detachment jig according to the present invention is a spring pin attachment / detachment jig for attaching / detaching a spring pin fitted in a through hole of a work from one side to the other side, and engages with the other side of the work to form a center. A base cylinder in which a bolt hole is formed along the shaft, a pull-out bolt that is screwed into the bolt hole of the base cylinder and a pull-out shaft through hole is formed along the central axis, and a spring that is smaller than the diameter of the through hole It has a head with a diameter larger than the inner hole diameter of the pin, and has a pulling shaft that is inserted from one side of the spring pin into the inner hole of the spring pin and the through hole of the pulling shaft, and a pulling shaft on the other side of the pulling bolt. A fixture for fastening the pull-out bolt is provided, and the spring pin is attached to and detached from the other side by rotating the pull-out bolt to separate the pull-out bolt from the base cylinder.
　本発明に係るスプリングピン脱着治具によれば、作業者の手のひらに収まる程度の小型であってスプリングピンを容易に脱着することができる。 According to the spring pin attachment / detachment jig according to the present invention, the spring pin can be easily attached / detached because it is small enough to fit in the palm of an operator.
スプリングピンが使用される例えばエスカレーターの非常制動装置を示す正面図である。It is a front view which shows the emergency braking device of an escalator which uses a spring pin, for example. 本実施形態のスプリングピン脱着治具を示す側断面図である。It is a side sectional view which shows the spring pin attachment / detachment jig of this embodiment. 本実施形態の分解したスプリングピン脱着治具を示す側断面図である。It is a side sectional view which shows the disassembled spring pin attachment / detachment jig of this embodiment. 本実施形態のスプリングピン脱着治具を用いるスプリングピンの取り外し手順を示す模式図である。It is a schematic diagram which shows the removal procedure of the spring pin using the spring pin attachment / detachment jig of this embodiment. 本実施形態のスプリングピン脱着治具を用いるスプリングピンの取り付け手順を示す模式図である。It is a schematic diagram which shows the attachment procedure of the spring pin using the spring pin attachment / detachment jig of this embodiment.
　以下、図面を用いて本発明の実施形態を説明する。以下で説明する形状、材料及び個数は、説明のための例示であって、スプリングピン脱着治具の仕様に応じて適宜変更することができる。以下では、全ての図面において同等の要素には同一の符号を付して説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The shapes, materials, and numbers described below are examples for explanation and can be appropriately changed according to the specifications of the spring pin attachment / detachment jig. In the following, the equivalent elements will be described with the same reference numerals in all the drawings.
　図１を用いて、スプリングピンＳＰが使用されるエスカレーターの非常制動装置９０について説明する。図１は、エスカレーターの非常制動装置９０を示す正面図である。また、図１では、連結軸９３と角度調整用レバー９４とを固定するスプリングピンＳＰを拡大して側面図で示す。 The emergency braking device 90 of the escalator in which the spring pin SP is used will be described with reference to FIG. FIG. 1 is a front view showing an emergency braking device 90 of an escalator. Further, in FIG. 1, the spring pin SP for fixing the connecting shaft 93 and the angle adjusting lever 94 is shown in an enlarged side view.
　非常制動装置９０は、制動機梁９１に固定されたブラケット９２に回動可能に支持された連結軸９３と、連結軸９３の一端部に設けられたシューレバー９５と、シューレバー９５に支持され、エスカレーターの駆動チェーンＣに載せられるシュー９６と、連結軸９３の他端部に設けられ、連結軸９３が回動することによって、ラチェットホイール（図示なし）に噛み合う噛合位置とラチェットホイールから離れる解除位置との間で変位するラチェットポール９７と、を備える。角度調整用レバー９４は、シューレバー９５の角度を調整するものであって、シューレバー９５にボルト等で取り付けられる。 The emergency braking device 90 is supported by a connecting shaft 93 rotatably supported by a bracket 92 fixed to a brake beam 91, a shoe lever 95 provided at one end of the connecting shaft 93, and a shoe lever 95. , The shoe 96 mounted on the drive chain C of the escalator and the meshing position provided at the other end of the connecting shaft 93 and rotating the connecting shaft 93 release the meshing position from the ratchet wheel (not shown) and the release from the ratchet wheel. It includes a ratchet pole 97 that is displaced with respect to the position. The angle adjusting lever 94 adjusts the angle of the shoe lever 95, and is attached to the shoe lever 95 with a bolt or the like.
　非常制動装置９０によれば、駆動チェーンＣが破断した場合に、シュー９６が自重によって降下して、シューレバー９５が連結軸９３を中心に回動する。これによって、連結軸９３が回動して、ラチェットポール９７が解除位置から噛合位置に変位する。その結果、ラチェットホイールの回転が停止され、回転することによって踏段が循環移動するエスカレーターの主軸の回転が阻止される。 According to the emergency braking device 90, when the drive chain C breaks, the shoe 96 descends due to its own weight, and the shoe lever 95 rotates about the connecting shaft 93. As a result, the connecting shaft 93 rotates, and the ratchet pole 97 is displaced from the release position to the meshing position. As a result, the rotation of the ratchet wheel is stopped, and the rotation prevents the rotation of the main shaft of the escalator in which the steps circulate.
　例えば、非常制動装置９０を交換する際には、連結軸９３から角度調整用レバー９４を取り外す必要がある。角度調整用レバー９４を取り外すためには、連結軸９３と角度調整用レバー９４とを固定するスプリングピンＳＰを脱着治具１０を用いて取り外す。 For example, when replacing the emergency braking device 90, it is necessary to remove the angle adjusting lever 94 from the connecting shaft 93. In order to remove the angle adjusting lever 94, the spring pin SP that fixes the connecting shaft 93 and the angle adjusting lever 94 is removed using the attachment / detachment jig 10.
　以下では、便宜上、連結軸９３および角度調整用レバー９４をまとめてワークＷと称し、連結軸９３の貫通孔９３Ａと角度調整用レバー９４の貫通孔９４Ａをまとめて貫通孔ＷＨと称して説明する。 Hereinafter, for convenience, the connecting shaft 93 and the angle adjusting lever 94 will be collectively referred to as a work W, and the through hole 93A of the connecting shaft 93 and the through hole 94A of the angle adjusting lever 94 will be collectively referred to as a through hole WH. ..
　図２および図３を用いて、脱着治具１０について説明する。図２および図３は、脱着治具１０を示す側断面図である。図３では、説明を分かり易くするため、各部品を分解して示す。 The attachment / detachment jig 10 will be described with reference to FIGS. 2 and 3. 2 and 3 are side sectional views showing the attachment / detachment jig 10. In FIG. 3, each component is disassembled and shown for the sake of clarity.
　以下では、スプリングピンＳＰを引き抜く方向を軸方向とし、軸方向において抜き軸４０を差し込む側を一側とし、引き抜きボルト３０を引き抜く側を他側とする。 In the following, the direction in which the spring pin SP is pulled out is the axial direction, the side in which the pull-out shaft 40 is inserted is one side, and the side in which the pull-out bolt 30 is pulled out is the other side.
　スプリングピンＳＰは、内孔を有する略円筒状に形成され、貫通孔ＷＨよりも若干大きい外径を有し、貫通孔ＷＨに圧入されるものとする。 The spring pin SP is formed in a substantially cylindrical shape having an inner hole, has an outer diameter slightly larger than that of the through hole WH, and is press-fitted into the through hole WH.
　脱着治具１０は、ワークＷを貫通する貫通孔ＷＨに嵌合するスプリングピンＳＰを脱着するものである。脱着治具１０は、ワークＷの他端面に係合する基筒２０と、詳細は後述する引き抜きボルト３０、抜き軸４０および固定子としての固定ナット５０を備える。 The attachment / detachment jig 10 is for attaching / detaching the spring pin SP fitted in the through hole WH penetrating the work W. The attachment / detachment jig 10 includes a base cylinder 20 that engages with the other end surface of the work W, a pull-out bolt 30, a pull-out shaft 40, and a fixing nut 50 as a stator, which will be described in detail later.
　基筒２０は、脱着治具１０によってスプリングピンＳＰを引き抜く際には、作業者が手によって支持してワークＷの他側に係合させて、スプリングピンＳＰを引き抜く土台となるものである。 When the spring pin SP is pulled out by the detachable jig 10, the base cylinder 20 serves as a base for pulling out the spring pin SP by being supported by the operator by hand and engaged with the other side of the work W.
　基筒２０は、略筒状に形成され、中心軸にボルト孔２０Ａが形成される。基筒２０の一端側には、一対の爪部２０Ｂが形成される。一対の爪部２０Ｂは、基筒２０がワークＷの他端面に当接した際に、ワークＷの軸方向と直交する方向（例えば、角度調整用レバー９４の場合には、角度調整用レバー９４の幅方向）の両端面に係合するものである。爪部２０Ｂによれば、ワークＷに対し基筒２０が軸周りに回転することを防止することができる。 The base cylinder 20 is formed in a substantially tubular shape, and a bolt hole 20A is formed on the central shaft. A pair of claw portions 20B are formed on one end side of the base cylinder 20. When the base cylinder 20 comes into contact with the other end surface of the work W, the pair of claw portions 20B are in a direction orthogonal to the axial direction of the work W (for example, in the case of the angle adjusting lever 94, the angle adjusting lever 94). It engages with both end faces (in the width direction of). According to the claw portion 20B, it is possible to prevent the base cylinder 20 from rotating about the axis with respect to the work W.
　基筒２０の一端側には、例えば磁石が設けられていてもよい。これにより、例えばワークＷが金属製であれば、ワークＷの他側に係合させる際に、作業者が基筒２０を手によって支持する必要がなく、作業効率を向上することができる。 For example, a magnet may be provided on one end side of the base cylinder 20. As a result, for example, if the work W is made of metal, it is not necessary for the operator to manually support the base cylinder 20 when engaging with the other side of the work W, and the work efficiency can be improved.
　脱着治具１０は、基筒２０のボルト孔２０Ａに螺合する引き抜きボルト３０をさらに備える。引き抜きボルト３０は、詳しくは後述する抜き軸４０と固定ナット５０とによってスプリングピンＳＰに締結されるものである。引き抜きボルト３０がスプリングピンＳＰに締結された状態で基筒２０から離間することによって、スプリングピンＳＰが貫通孔ＷＨから引き抜かれる。 The attachment / detachment jig 10 further includes a pull-out bolt 30 that is screwed into the bolt hole 20A of the base cylinder 20. The pull-out bolt 30 is fastened to the spring pin SP by a pull-out shaft 40 and a fixing nut 50, which will be described in detail later. The spring pin SP is pulled out from the through hole WH by separating the pull-out bolt 30 from the base cylinder 20 while being fastened to the spring pin SP.
　引き抜きボルト３０のネジ部の長さは、スプリングピンＳＰよりも十分に長いものとする。引き抜きボルト３０の中心軸には、抜き軸貫通孔３０Ａが形成されている。 The length of the threaded part of the pull-out bolt 30 shall be sufficiently longer than the spring pin SP. A pull-out shaft through hole 30A is formed in the central shaft of the pull-out bolt 30.
　脱着治具１０は、スプリングピンＳＰの一側からスプリングピンＳＰの内孔と抜き軸貫通孔３０Ａとに挿通される抜き軸４０をさらに備える。抜き軸４０は、スプリングピンＳＰを貫通孔ＷＨから脱着するものである。 The attachment / detachment jig 10 further includes a punching shaft 40 that is inserted into the inner hole of the spring pin SP and the punching shaft through hole 30A from one side of the spring pin SP. The punching shaft 40 detaches the spring pin SP from the through hole WH.
　抜き軸４０の一側には、貫通孔ＷＨの径よりも小さくかつスプリングピンＳＰの内孔径よりも大きい径を有する頭部４０Ｈが形成される。抜き軸４０の径は、スプリングピンの内孔径および抜き軸貫通孔３０Ａよりも若干小さいものとする。抜き軸４０の長さは、スプリングピンＳＰと引き抜きボルト３０との長さの合計よりも十分に長いものとする。 A head 40H having a diameter smaller than the diameter of the through hole WH and larger than the inner hole diameter of the spring pin SP is formed on one side of the punching shaft 40. The diameter of the punch shaft 40 shall be slightly smaller than the inner hole diameter of the spring pin and the punch shaft through hole 30A. The length of the pull-out shaft 40 shall be sufficiently longer than the total length of the spring pin SP and the pull-out bolt 30.
　脱着治具１０は、引き抜きボルト３０よりも他側において抜き軸４０と引き抜きボルト３０とを締結する固定子としての固定ナット５０をさらに備える。言い換えれば、抜き軸４０と固定ナット５０とによって、スプリングピンＳＰと引き抜きボルト３０とが一体に締結される。 The attachment / detachment jig 10 further includes a fixing nut 50 as a stator for fastening the pull-out shaft 40 and the pull-out bolt 30 on the side other than the pull-out bolt 30. In other words, the spring pin SP and the pull-out bolt 30 are integrally fastened by the pull-out shaft 40 and the fixing nut 50.
　引き抜きボルト３０と固定ナット５０との間には、複数枚のワッシャ５１が介される。ワッシャ５１が遊嵌して介されているため、抜き軸４０と固定ナット５０とによってスプリングピンＳＰと引き抜きボルト３０とが締結された状態で、引き抜きボルト３０を基筒２０に対し回転させる際に、ワッシャ５１同士が摺動し、引き抜きボルト３０が固定ナット５０に対しスムーズに回転することができる。 A plurality of washers 51 are interposed between the pull-out bolt 30 and the fixing nut 50. Since the washer 51 is loosely fitted and interposed, when the pull-out bolt 30 is rotated with respect to the base cylinder 20 in a state where the spring pin SP and the pull-out bolt 30 are fastened by the pull-out shaft 40 and the fixing nut 50. , The washers 51 slide against each other, and the pull-out bolt 30 can smoothly rotate with respect to the fixing nut 50.
　固定ナット５０の他側には、蝶ナット５２が螺合される。蝶ナット５２によれば、抜き軸４０と固定ナット５０とによってスプリングピンＳＰと引き抜きボルト３０とが締結された状態で、固定ナット５０の他側からさらに蝶ナット５２を締め付けることによって固定ナット５０の抜けを防止することができる。 A wing nut 52 is screwed onto the other side of the fixing nut 50. According to the wing nut 52, the fixing nut 50 is further tightened from the other side of the fixing nut 50 in a state where the spring pin SP and the pull-out bolt 30 are fastened by the pulling shaft 40 and the fixing nut 50. It is possible to prevent the omission.
　図４（Ａ）、（Ｂ）を用いて、脱着治具１０によるスプリングピンＳＰの取り外し手順について説明する。 The procedure for removing the spring pin SP by the attachment / detachment jig 10 will be described with reference to FIGS. 4A and 4B.
　図４（Ａ）に示すように、まず、作業者は、基筒２０をワークＷの他側に当接させ、爪部２０ＢをワークＷの両端面に係合させることによって、基筒２０をワークＷに係合させる。次に、作業者は、基筒２０を手によって支持してワークＷに係合させたまま、引き抜きボルト３０を基筒２０に螺合する。このとき、引き抜きボルト３０を最後まで（引き抜きボルト３０のヘッド部が基筒２０に当接するまで）基筒２０に螺合させることが好ましい。なお、引き抜きボルト３０を基筒２０に螺合してから、基筒２０をワークＷの他側に当接させてもよい。 As shown in FIG. 4A, the operator first brings the base cylinder 20 into contact with the other side of the work W, and engages the claws 20B with both end surfaces of the work W to engage the base cylinder 20. Engage with work W. Next, the operator screwes the pull-out bolt 30 into the base cylinder 20 while supporting the base cylinder 20 by hand and engaging the work W with the work W. At this time, it is preferable to screw the pull-out bolt 30 to the base cylinder 20 until the end (until the head portion of the pull-out bolt 30 comes into contact with the base cylinder 20). The pull-out bolt 30 may be screwed into the base cylinder 20 and then the base cylinder 20 may be brought into contact with the other side of the work W.
　そして、作業者は、ワークＷの一側から抜き軸４０をスプリングピンＳＰの内孔と引き抜きボルト３０の抜き軸貫通孔３０Ａとに挿通させる。次に、作業者は、引き抜きボルト３０の他側において、複数のワッシャ５１を先に抜き軸４０に遊嵌させて固定ナット５０を抜き軸４０に螺合させて、抜き軸４０と固定ナット５０とによってスプリングピンＳＰと引き抜きボルト３０とを締結する。このとき、固定ナット５０の他側においてさらに蝶ナット５２を締め付けることによって、固定ナット５０の抜けを防止することができる。 Then, the operator inserts the extraction shaft 40 from one side of the work W into the inner hole of the spring pin SP and the extraction shaft through hole 30A of the extraction bolt 30. Next, on the other side of the pull-out bolt 30, the operator first loosely fits a plurality of washers 51 into the pull-out shaft 40, screwes the fixing nut 50 into the pull-out shaft 40, and pulls out the pull-out shaft 40 and the fixing nut 50. To fasten the spring pin SP and the pull-out bolt 30. At this time, by further tightening the wing nut 52 on the other side of the fixing nut 50, it is possible to prevent the fixing nut 50 from coming off.
　図４（Ｂ）に示すように、作業者は、例えばラチェットレンチ等の工具によって引き抜きボルト３０を回転させることにより引き抜きボルト３０を基筒２０から離間させる。このとき、抜き軸４０と固定ナット５０とにより引き抜きボルト３０と締結されているスプリングピンＳＰが引き抜きボルト３０と共に移動しワークＷの貫通孔ＷＨから引き抜かれる。また、引き抜きボルト３０と固定ナット５０との間に複数枚のワッシャ５１が介されているため、ワッシャ５１同士が摺動し、引き抜きボルト３０の頭部と固定ナット５０との摩擦の影響を受けることなく、引き抜きボルト３０をスムーズに回転することができる。 As shown in FIG. 4B, the operator separates the pull-out bolt 30 from the base cylinder 20 by rotating the pull-out bolt 30 with a tool such as a ratchet wrench. At this time, the spring pin SP fastened to the pull-out bolt 30 by the pull-out shaft 40 and the fixing nut 50 moves together with the pull-out bolt 30 and is pulled out from the through hole WH of the work W. Further, since a plurality of washers 51 are interposed between the pull-out bolt 30 and the fixing nut 50, the washers 51 slide with each other and are affected by the friction between the head of the pull-out bolt 30 and the fixing nut 50. The pull-out bolt 30 can be smoothly rotated without any problem.
　図５（Ａ）、（Ｂ）を用いて、脱着治具１０によるスプリングピンＳＰの取り付け手順について説明する。 The procedure for attaching the spring pin SP by the attachment / detachment jig 10 will be described with reference to FIGS. 5A and 5B.
　図５（Ａ）に示すように、まず、作業者は、基筒２０をワークＷの他側に当接させ、爪部２０ＢをワークＷに係合させることによって、基筒２０をワークＷに係合させる。次に、作業者は、基筒２０を手に持ってワークＷに係合させたまま、引き抜きボルト３０を基筒２０に螺合する。このとき、引き抜きボルト３０を最後まで基筒２０に螺合させることが好ましい。ここまでは、スプリングピンＳＰの取り外し手順と同様である。 As shown in FIG. 5A, the operator first brings the base cylinder 20 into the work W by bringing the base cylinder 20 into contact with the other side of the work W and engaging the claw portion 20B with the work W. Engage. Next, the operator screwes the pull-out bolt 30 into the base cylinder 20 while holding the base cylinder 20 in his hand and engaging the work W with the work W. At this time, it is preferable to screw the pull-out bolt 30 into the base cylinder 20 to the end. Up to this point, the procedure for removing the spring pin SP is the same.
　そして、作業者は、抜き軸４０の一側にスプリングピンＳＰの内孔を挿通させ、ワークＷの一側から抜き軸４０をワークＷの貫通孔ＷＨと引き抜きボルト３０の抜き軸貫通孔３０Ａに挿通させる。次に、作業者は、引き抜きボルト３０の他側において、複数のワッシャ５１を介して固定ナット５０を螺合させて、抜き軸４０と固定ナット５０とによってスプリングピンＳＰと引き抜きボルト３０とを締結する。このとき、スプリングピンＳＰの他端部は、ワークＷの貫通孔ＷＨの一側に係合されることが好ましい。また、固定ナット５０の他側においてさらに蝶ナット５２を締め付けることによって、固定ナット５０の抜けを防止する。 Then, the operator inserts the inner hole of the spring pin SP into one side of the extraction shaft 40, and inserts the extraction shaft 40 from one side of the work W into the through hole WH of the work W and the extraction shaft through hole 30A of the extraction bolt 30. Let it be inserted. Next, the operator screwes the fixing nut 50 on the other side of the pull-out bolt 30 via a plurality of washers 51, and fastens the spring pin SP and the pull-out bolt 30 by the pull-out shaft 40 and the fixing nut 50. To do. At this time, the other end of the spring pin SP is preferably engaged with one side of the through hole WH of the work W. Further, the wing nut 52 is further tightened on the other side of the fixing nut 50 to prevent the fixing nut 50 from coming off.
　図５（Ｂ）に示すように、作業者は、例えばラチェットレンチ等の工具によって引き抜きボルト３０を回転させることにより引き抜きボルト３０を基筒２０から離間させる。このとき、抜き軸４０と固定ナット５０とによって引き抜きボルト３０に締結されているスプリングピンＳＰが引き抜きボルト３０と共に移動しワークＷの貫通孔ＷＨに押し込まれる。また、引き抜きボルト３０と固定ナット５０との間に複数枚のワッシャ５１が介されているため、ワッシャ５１同士が摺動し、引き抜きボルト３０の頭部と固定ナット５０との摩擦の影響を受けることなく、引き抜きボルト３０をスムーズに回転することができる。 As shown in FIG. 5B, the operator separates the pull-out bolt 30 from the base cylinder 20 by rotating the pull-out bolt 30 with a tool such as a ratchet wrench. At this time, the spring pin SP fastened to the pull-out bolt 30 by the pull-out shaft 40 and the fixing nut 50 moves together with the pull-out bolt 30 and is pushed into the through hole WH of the work W. Further, since a plurality of washers 51 are interposed between the pull-out bolt 30 and the fixing nut 50, the washers 51 slide with each other and are affected by the friction between the head of the pull-out bolt 30 and the fixing nut 50. The pull-out bolt 30 can be smoothly rotated without any problem.
　脱着治具１０の効果について説明する。脱着治具１０によれば、脱着治具１０を作業者の手のひらに収まる程度の小型なものとして実現することができる。そのため、脱着治具１０によれば、狭いスペースであってもワークＷの貫通孔ＷＨに嵌合するスプリングピンＳＰを容易に取り外すことができる。また、脱着治具１０によれば、狭いスペースであってもスプリングピンＳＰをワークＷの貫通孔ＷＨに容易に取り付けることができる。 The effect of the detachable jig 10 will be described. According to the attachment / detachment jig 10, the attachment / detachment jig 10 can be realized as a small one that fits in the palm of an operator. Therefore, according to the attachment / detachment jig 10, the spring pin SP that fits into the through hole WH of the work W can be easily removed even in a narrow space. Further, according to the attachment / detachment jig 10, the spring pin SP can be easily attached to the through hole WH of the work W even in a narrow space.
　脱着治具１０は、例えば上述した、エスカレーターの非常制動装置９０の構成部品である連結軸９３と角度調整用レバー９４とを固定するスプリングピンＳＰを取り外すまたは取り付ける際に、非常に有効である。 The attachment / detachment jig 10 is very effective, for example, when removing or attaching the spring pin SP that fixes the connecting shaft 93 and the angle adjusting lever 94, which are the components of the emergency braking device 90 of the escalator described above.
　１０　脱着治具、２０　基筒、２０Ａ　ボルト孔、２０Ｂ　爪部、３０　引き抜きボルト、３０Ａ　抜き軸貫通孔、４０　抜き軸、４０Ｈ　頭部、５０　固定ナット、５１　ワッシャ、５２　蝶ナット、ＳＰ　スプリングピン、Ｗ　ワーク、ＷＨ　貫通孔
  10 Detachable jig, 20 base cylinder, 20A bolt hole, 20B claw, 30 pull-out bolt, 30A pull-out shaft through hole, 40 pull-out shaft, 40H head, 50 fixing nut, 51 washer, 52 wing nut, SP spring pin, W work, WH through hole

Claims (1)

  1. 　ワークの貫通孔に嵌合されたスプリングピンを一側から他側へ脱着するスプリングピン脱着治具であって、
    　前記ワークの他側に係合し、中心軸に沿ってボルト孔が形成される基筒と、
    　前記基筒の前記ボルト孔に螺合し、前記中心軸に沿って抜き軸貫通孔が形成される引き抜きボルトと、
    　前記貫通孔の径よりも小さくかつ前記スプリングピンの内孔径よりも大きい径の頭部を有し、前記スプリングピンの一側から該スプリングピンの内孔と前記抜き軸貫通孔とに挿通される抜き軸と、
    　前記引き抜きボルトよりも他側において前記抜き軸と前記引き抜きボルトとを締結する固定子と、
    　を備え、
    　前記引き抜きボルトを回転させて前記基筒から前記引き抜きボルトを離間させることによって、前記スプリングピンを他側へ脱着する、
    　スプリングピン脱着治具。
          A spring pin attachment / detachment jig for attaching / detaching a spring pin fitted in a through hole of a work from one side to the other.
    A base cylinder that engages with the other side of the work and has a bolt hole formed along the central axis.
    A pull-out bolt that is screwed into the bolt hole of the base cylinder to form a pull-out shaft through hole along the central axis.
    It has a head having a diameter smaller than the diameter of the through hole and larger than the inner hole diameter of the spring pin, and is inserted from one side of the spring pin into the inner hole of the spring pin and the through shaft through hole. With a pin
    A stator that fastens the pull-out shaft and the pull-out bolt on the other side of the pull-out bolt,
    With
    By rotating the pull-out bolt to separate the pull-out bolt from the base cylinder, the spring pin is attached to and detached from the other side.
    Spring pin attachment / detachment jig.
PCT/JP2019/031345 2019-08-08 2019-08-08 Spring pin detaching/attaching jig WO2021024451A1 (en)

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CN201980098786.6A CN114206554B (en) 2019-08-08 2019-08-08 Utensil is assisted in dismouting of spring catch
PCT/JP2019/031345 WO2021024451A1 (en) 2019-08-08 2019-08-08 Spring pin detaching/attaching jig

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Citations (2)

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JPS63267129A (en) * 1987-04-22 1988-11-04 Toyo Commun Equip Co Ltd Spring pin setting method
JP2012016765A (en) * 2010-07-07 2012-01-26 Hiroshi Inoue Pin attaching/detaching tool

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FR2273629A1 (en) * 1974-06-05 1976-01-02 Chrysler France Tool for extraction of hollow cotter pins - has split tube inserted through pin to locking position and withdrawn
CA1279762C (en) * 1986-11-13 1991-02-05 Ronald J.W. Parrott Extractor tool for bearings, bushings and the like
JP2004058251A (en) * 2002-07-31 2004-02-26 Honda Motor Co Ltd Knock pin drawing out device
RU2393080C1 (en) * 2008-12-15 2010-06-27 Российская Федерация, от имени которой выступает государственный заказчик - Государственная корпорация по атомной энергии "Росатом" Puller of ring gasket from pipe
CN205858416U (en) * 2016-08-09 2017-01-04 哈尔滨汽轮机厂有限责任公司 A kind of steam turbine stator portion set assembly conveniently reprocessed
CN207788821U (en) * 2017-12-29 2018-08-31 大连泰凯工业有限公司 Nuclear reactor vessel flange bolt adapter hollow pins remover

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Publication number Priority date Publication date Assignee Title
JPS63267129A (en) * 1987-04-22 1988-11-04 Toyo Commun Equip Co Ltd Spring pin setting method
JP2012016765A (en) * 2010-07-07 2012-01-26 Hiroshi Inoue Pin attaching/detaching tool

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