WO2021245869A1 - スプリングピン脱着治具及びスプリングピン脱着方法 - Google Patents

スプリングピン脱着治具及びスプリングピン脱着方法 Download PDF

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Publication number
WO2021245869A1
WO2021245869A1 PCT/JP2020/022076 JP2020022076W WO2021245869A1 WO 2021245869 A1 WO2021245869 A1 WO 2021245869A1 JP 2020022076 W JP2020022076 W JP 2020022076W WO 2021245869 A1 WO2021245869 A1 WO 2021245869A1
Authority
WO
WIPO (PCT)
Prior art keywords
spring pin
hole
shaft
spacer
work
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2020/022076
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
和雄 笹島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Building Solutions Corp
Original Assignee
Mitsubishi Electric Building Techno Service Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Building Techno Service Co Ltd filed Critical Mitsubishi Electric Building Techno Service Co Ltd
Priority to CN202080101611.9A priority Critical patent/CN115803149B/zh
Priority to JP2022529244A priority patent/JP7297159B2/ja
Priority to PCT/JP2020/022076 priority patent/WO2021245869A1/ja
Publication of WO2021245869A1 publication Critical patent/WO2021245869A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • B25B27/30—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 springs, e.g. coil or leaf springs

Definitions

  • the present invention relates to a spring pin attachment / detachment jig for removing a spring pin and a spring pin attachment / detachment method.
  • a spring pin is a fixture that fits into through holes that penetrate multiple workpieces and fixes the workpieces together.
  • the spring pin fixes the angle adjusting lever and the connecting shaft, for example, in the emergency braking device of the escalator. When replacing the emergency braking device, it is necessary to remove this spring pin and remove the angle adjustment lever from the connecting shaft.
  • Patent Document 1 discloses a spring pin attachment / detachment jig in which a bolt is screwed in to push out a push rod, and the push rod further pushes out a spring pin.
  • An object of the present invention is to provide a spring pin attachment / detachment jig and a spring pin attachment / detachment method capable of efficiently removing a spring pin in a short time.
  • the spring pin attachment / detachment jig is a spring pin attachment / detachment jig for pulling out a spring pin fitted to a through hole of a work from one side to the other side, from one side of the spring pin to the inner hole of the spring pin. It has a punching shaft with a head that is inserted and has a maximum diameter larger than the diameter of the inner hole of the spring pin and smaller than the diameter of the through hole of the work, and a housing hole having a diameter larger than the outer diameter of the spring pin.
  • the spring pin attachment / detachment method according to the present invention is a spring pin attachment / detachment method in which the spring pin fitted to the through hole of the work is pulled out from one side to the other side, which is larger than the diameter of the inner hole of the spring pin and penetrates the work.
  • a punching shaft having a head having a maximum diameter smaller than the diameter of the hole is inserted into the inner hole of the spring pin from one side of the spring pin, and a storage hole having a diameter larger than the outer diameter of the spring pin is formed on the other side of the spring pin.
  • the punching shaft is inserted into the accommodating hole of the spacer, and the pulling shaft is pulled out from one side to the other side by a riveter on the other side of the spacer.
  • the spring pin can be efficiently removed in a short time.
  • FIG. 3 is a front view showing an emergency braking device of, for example, an escalator in which a spring pin is used. It is a side view which shows the spring pin attachment / detachment jig which is an example of this embodiment. It is a side view which shows the punching shaft which is another example of this embodiment. It is a schematic diagram which shows the removal procedure of the spring pin using the spring pin attachment / detachment jig which is an example of this embodiment. It is a schematic diagram which shows the attachment procedure of the spring pin using the spring pin attachment / detachment jig which is an example of this embodiment.
  • 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.
  • 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 to engage with the ratchet wheel (not shown) and release the ratchet wheel. It comprises a ratchet pole 97 that is displaced from position to position.
  • the angle adjusting lever 94 adjusts the angle of the shoe lever 95, and is attached to the shoe lever 95 with bolts or the like.
  • 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 of the ratchet wheel prevents the rotation of the spindle of the escalator in which the step is circulated and moved.
  • 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.
  • FIG. 2 is a side view showing the attachment / detachment jig 10.
  • the direction in which the spring pin SP is pulled out is the axial direction
  • the side in which the pull-out shaft 20 is inserted is one side
  • the side in which the spring pin SP and the pull-out shaft 20 are pulled out is the other side.
  • 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.
  • the attachment / detachment jig 10 is for attaching / detaching the spring pin SP fitted in the through hole WH penetrating the work W. According to the attachment / detachment jig 10, the spring pin SP can be efficiently pulled out from the through hole WH of the work W in a short time by using the hand riveter 40. Similarly, according to the attachment / detachment jig 10, the spring pin SP can be efficiently pushed into the through hole WH of the work W in a short time and efficiently.
  • the attachment / detachment jig 10 has a punching shaft 20 inserted into the inner hole of the spring pin SP from one side of the spring pin SP, a spacer 30 through which the punching shaft 20 is inserted on the other side of the spring pin SP, and a punching shaft 20. It is provided with a hand rivetta 40 as a rivetta that is pulled out from one side toward the other side.
  • the pull-out shaft 20 is a member pulled out by the hand riveter 40. In the attachment / detachment jig 10, the pull-out shaft 20 is pulled out by the hand riveter 40, so that the spring pin SP is pulled out from the through hole WH of the work W together with the pull-out shaft 20.
  • the punching shaft 20 is preferably made of metal having a rigidity equal to or higher than that of the spring pin SP.
  • the punching shaft 20 has a rod-shaped shaft portion 20P and a head portion 20H formed on one side of the shaft portion 20P.
  • the shaft portion 20P is a portion inserted into the inner hole of the spring pin SP and a portion inserted into the insertion hole 42H of the nose piece 42 of the hand riveter 40.
  • the diameter of the shaft portion 20P is formed to be smaller than the diameter of the inner hole of the spring pin SP.
  • the length of the shaft portion 20P is formed to be larger than the total length of the spring pin SP, the spacer 30, and the nose piece 42 of the hand riveter 40.
  • the head 20H is a portion that engages with one end of the spring pin SP when the spring pin SP is pulled out. More specifically, when the spring pin SP is pulled out, the surface on the side (other side) on which the shaft portion 20P of the head portion 20H extends presses the end surface on one side of the spring pin SP.
  • the maximum diameter of the head portion 20H is formed to be smaller than the diameter of the through hole WH of the work W and larger than the diameter of the inner hole of the spring pin SP.
  • the head 20H is preferably circular when viewed from the axial direction, but is not particularly limited. As long as it has a shape that engages with one end of the spring pin SP when the spring pin SP is pulled out, it may be, for example, a hexagon or a quadrangle when viewed from the axial direction.
  • the spacer 30 is a cylindrical member in which the spring pin SP pulled out by the pulling shaft 20 is housed.
  • the spacer 30 is inserted into the inner hole of the spring pin SP on the other side of the spring pin SP, and the shaft portion 20P of the extraction shaft 20 extending to the other side of the spring pin SP is inserted.
  • the spacer 30 has an accommodation hole 30H penetrating in the axial direction.
  • the accommodating hole 30H is larger than the outer diameter of the spring pin SP and larger than the maximum diameter of the head portion 20H of the punching shaft 20.
  • the axial length of the spacer 30 is preferably larger than the axial length of the spring pin SP.
  • a pair of claws may be formed on one end side of the spacer 30.
  • the pair of claws are in a direction orthogonal to the axial direction when the spacer 30 abuts on the other end surface of the work W (for example, in the case of the angle adjusting lever 94, the width direction of the angle adjusting lever 94). Anything that engages with both end faces may be used.
  • the movement of the spacer 30 in the direction orthogonal to the axial direction can be fixed with respect to the work W, and workability can be improved.
  • both ends of the spring pin SP project from both end faces of the work W, respectively. Therefore, one side of the accommodating hole 30H of the spacer 30 may be engaged with the other end of the protruding spring pin SP. Similarly, the nose piece 42 of the hand riveter 40 may be engaged with the other side of the accommodating hole 30H of the spacer 30.
  • the hand riveter 40 is a manual tool for pulling out the pulling shaft 20.
  • the hand riveter 40 is a manual tool for rivet tightening using a rivet (blind rivet).
  • the spring pin SP fitted in the through hole WH of the work W can be pulled out by pulling out the pulling shaft 20 in the same manner as the operation of pulling out the rivet.
  • the riveter is preferably a hand rivetta 40 as in the present embodiment, but may be an electric rivetta or an air riveter.
  • the hand riveter 40 has a main body 41 that tapers downward, a nose piece 42 into which the other side of the shaft portion 20P of the punching shaft 20 is inserted, and a lever 43 that is closed toward the main body 41.
  • the main body 41 includes a tip portion 41A protruding to one side of the upper end portion and a grip portion 41B formed in the lower portion.
  • the nose piece 42 is detachably attached to the tip portion 41A and has an insertion hole 42H into which the other side of the shaft portion 20P of the extraction shaft 20 is inserted.
  • the lever 43 includes a grip portion 43B formed in the lower part.
  • the handle 44 is configured by the grip portion 41B of the main body 41 and the grip portion 43B of the lever 43, and the pull-out shaft 20 inserted into the insertion hole 42H of the nose piece 42 is pulled out by the opening / closing operation of the handle 44.
  • a plurality of nose pieces 42 are attached to the central part on one side of the main body 41.
  • the plurality of nose pieces 42 have different diameters of the insertion holes 42H.
  • the nose piece 42 attached to the tip portion 41A of the main body 41 is selected to have an insertion hole 42H having a diameter slightly larger than the diameter of the shaft portion 20P of the punching shaft 20.
  • FIG. 3 shows a side view of the punching shaft 20.
  • the shaft portion 20P of the punching shaft 20 may have a bent portion 20C formed by bending.
  • the bent portion 20C is preferably formed so as to abut at least two or more points on the inner hole of the spring pin SP. Further, the bent portion 20C is preferably formed in the vicinity of the head portion 20H. With this configuration, when the punching shaft 20 is inserted into the inner hole of the spring pin SP, the bent portion 20C fits into the inner hole of the spring pin SP. When the bent portion 20C is fitted into the inner hole of the spring pin SP, it is preferable that the bent portion 20C can be manually removed by the operator.
  • the shaft is pulled out from the spring pin SP after the spring pin SP is removed from the through hole WH of the work W by the attachment / detachment jig 10 or before the spring pin SP is attached from the through hole WH of the work W by the attachment / detachment jig 10. 20 is less likely to fall off. As a result, the workability of the spring pin SP attachment / detachment work can be improved.
  • the operator inserts the punching shaft 20 from one side of the work W into the inner hole of the spring pin SP. Then, the head portion 20H of the punching shaft 20 is brought into contact with the end surface on one side of the spring pin SP, and the other side of the shaft portion 20P of the punching shaft 20 is in a state of extending from the other side of the spring pin SP. Next, the operator inserts the spacer 30 through the shaft portion 20P extending from the other side of the spring pin SP. At this time, one side of the accommodating hole 30H of the spacer 30 may be engaged with the other end of the spring pin SP protruding from the work W.
  • the operator inserts the extraction shaft 20 extending from the other side of the spacer 30 into the insertion hole 42H of the nose piece 42 of the hand riveter 40, and tightens the nose piece 42.
  • the nose piece 42 of the hand riveter 40 may be engaged with the other side of the accommodating hole 30H of the spacer 30.
  • the operator closes the handle 44 of the hand riveter 40 and pulls out the pulling shaft 20 from one side to the other side.
  • the pull-out shaft 20 is pulled out, the spring pin SP is also pulled out from the through hole WH of the work W together with the pull-out shaft 20.
  • the operator opens and closes the handle 44 of the hand riveter 40 and further pulls out the pull-out shaft 20 and the spring pin SP from one side to the other side.
  • the spring pin SP completely pulled out from the through hole WH of the work W is accommodated in the accommodating hole 30H of the spacer 30. Then, the hand riveter 40 is pulled out from the pulling shaft 20, the pulling shaft 20 is pulled out from the spring pin SP, and the spring pin SP is recovered from the spacer 30.
  • the operator inserts the punching shaft 20 into the inner hole of the spring pin SP, and the spring pin SP is in contact with the head portion 20H of the pulling shaft 20.
  • one side of the punching shaft 20 is inserted into the through hole WH from one side of the work W, and the other side of the spring pin SP is engaged with one side of the through hole WH.
  • the operator inserts the punching shaft 20 extending from the other side of the work W into the insertion hole 42H of the nose piece 42 of the hand riveter 40, and closes the handle 44 of the hand riveter 40. , Pull out the pull-out shaft 20 from one side to the other side. Then, the spring pin SP is pushed into the through hole WH of the work W and fitted into the through hole WH of the work W. Then, the pulling shaft 20 is pulled out from the hand riveter 40, the pulling shaft 20 is pulled out from the spring pin SP, and the spring pin SP is attached to the work W.
  • the spring pin SP can be efficiently removed from the through hole WH of the work W in a short time by utilizing the function of pulling out the rivet of the hand riveter 40. Further, the spring pin SP can be efficiently attached to the through hole WH of the work W in a short time by utilizing the function of pulling out the rivet of the hand riveter 40.
  • the spring pin SP can be prevented from falling by pulling out the spring pin SP from the through hole WH of the work W and then accommodating the spring pin SP in the spacer 30. Thereby, workability can be improved.
  • the detachable jig 10 is composed of a hand riveter 40 often used in maintenance and inspection work, a simple-shaped punching shaft 20 and a spacer 30, it can be manufactured inexpensively and easily.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Insertion Pins And Rivets (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
PCT/JP2020/022076 2020-06-04 2020-06-04 スプリングピン脱着治具及びスプリングピン脱着方法 Ceased WO2021245869A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202080101611.9A CN115803149B (zh) 2020-06-04 2020-06-04 弹簧销拆装辅具及弹簧销拆装方法
JP2022529244A JP7297159B2 (ja) 2020-06-04 2020-06-04 スプリングピン脱着治具及びスプリングピン脱着方法
PCT/JP2020/022076 WO2021245869A1 (ja) 2020-06-04 2020-06-04 スプリングピン脱着治具及びスプリングピン脱着方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/022076 WO2021245869A1 (ja) 2020-06-04 2020-06-04 スプリングピン脱着治具及びスプリングピン脱着方法

Publications (1)

Publication Number Publication Date
WO2021245869A1 true WO2021245869A1 (ja) 2021-12-09

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Application Number Title Priority Date Filing Date
PCT/JP2020/022076 Ceased WO2021245869A1 (ja) 2020-06-04 2020-06-04 スプリングピン脱着治具及びスプリングピン脱着方法

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JP (1) JP7297159B2 (https=)
CN (1) CN115803149B (https=)
WO (1) WO2021245869A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6416281U (https=) * 1987-07-21 1989-01-26
JPH07164346A (ja) * 1993-12-07 1995-06-27 Mitsubishi Denki Bill Techno Service Kk スプリングピンの打ち込み工具
JP3908652B2 (ja) * 2002-12-03 2007-04-25 埼玉日本電気株式会社 スプリングピン挿入工具および方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3550241A (en) * 1968-09-26 1970-12-29 Standard Pressed Steel Co Spring pin extraction means
CN2422203Y (zh) * 1999-11-17 2001-03-07 神龙汽车有限公司 发动机支架橡胶衬套车上拆装器
CN201136138Y (zh) * 2008-01-11 2008-10-22 广西玉柴机器股份有限公司 用于导向套的快速取出工具
JP5513286B2 (ja) * 2010-07-07 2014-06-04 弘 井上 ピン着脱工具
CN202591926U (zh) * 2012-03-23 2012-12-12 宝山钢铁股份有限公司 一种盲孔弹簧销拆卸装置
FR2988310B1 (fr) * 2012-03-23 2014-12-26 Peugeot Citroen Automobiles Sa Procede et dispositif pour centrer ensemble deux pieces au moyen d’une goupille et pour extraire celle-ci
CN205219001U (zh) * 2015-12-16 2016-05-11 广西玉柴机器股份有限公司 一种轴套拉拔工具
CN110977868A (zh) * 2019-12-05 2020-04-10 中国航发四川燃气涡轮研究院 一种过盈配合空心销的拆卸装置及其使用方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6416281U (https=) * 1987-07-21 1989-01-26
JPH07164346A (ja) * 1993-12-07 1995-06-27 Mitsubishi Denki Bill Techno Service Kk スプリングピンの打ち込み工具
JP3908652B2 (ja) * 2002-12-03 2007-04-25 埼玉日本電気株式会社 スプリングピン挿入工具および方法

Also Published As

Publication number Publication date
JP7297159B2 (ja) 2023-06-23
CN115803149B (zh) 2024-03-01
CN115803149A (zh) 2023-03-14
JPWO2021245869A1 (https=) 2021-12-09

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