WO2020121865A1 - Structure de prévention de desserrage pour écrou fixé sur un boulon - Google Patents

Structure de prévention de desserrage pour écrou fixé sur un boulon Download PDF

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Publication number
WO2020121865A1
WO2020121865A1 PCT/JP2019/046998 JP2019046998W WO2020121865A1 WO 2020121865 A1 WO2020121865 A1 WO 2020121865A1 JP 2019046998 W JP2019046998 W JP 2019046998W WO 2020121865 A1 WO2020121865 A1 WO 2020121865A1
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WO
WIPO (PCT)
Prior art keywords
bolt
thin plate
nut
vertical groove
gate
Prior art date
Application number
PCT/JP2019/046998
Other languages
English (en)
Japanese (ja)
Inventor
良三 太田
Original Assignee
良三 太田
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 良三 太田 filed Critical 良三 太田
Publication of WO2020121865A1 publication Critical patent/WO2020121865A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
    • F16B39/10—Locking of screws, bolts or nuts in which the locking takes place after screwing down by a plate, spring, wire or ring immovable with regard to the bolt or object and mainly perpendicular to the axis of the bolt

Definitions

  • the present invention is a method for preventing loosening of a nut tightened on a bolt that requires a strong tightening force.
  • the present invention prevents the nut tightened on the bolt from loosening and falling off due to strong vibration.
  • a lid 7 is provided on the head of the tightening nut 5 so that the upper end of the bolt 1 is covered, and one vertical groove 8 is provided so that the lid is divided into two from above.
  • the upper member 18 is placed on the lower member through the bolt hole 19 and the tightening nut is tightened to the bolt, and then the portal thin plate 14 is inserted into the vertical groove 8 from above. It is driven and press-fitted between both side walls 9 of the vertical groove, the cutting blades 16 at the inner ends of both feet 15 are bite into the corners 3 around the upper end of the bolt, and the tightening nut is rotated on the bolt. Try to bind impossiblely.
  • the gate-shaped thin plate 14 is driven into the vertical groove 8 of the lid portion 7 of the tightening nut from above, and the cutting blades 16 at the inner ends of the two feet are bited into the corner portion 3 around the upper end portion of the bolt 1 for tightening.
  • a thin flat glass is driven into the triangular narrow groove 11 which is cut parallel to the vertical groove 8 of the lid portion of the tightening nut.
  • the wall 12 between the groove and the narrow groove is bent so as to cover the portal thin plate so as to prevent the portal thin plate from escaping.
  • the gate-shaped thin plate 14 is driven into the vertical groove 8 of the lid portion 7 of the tightening nut from above, and the cutting blades (16) at the inner ends of both feet of the foot are bited into the corner portions 3 around the upper end portion of the bolt 1.
  • the tightening nut is strongly tightened to the bolt, it is possible to surely prevent the nut from loosening, and it is possible to prevent the nut from being violently vibrated such as a railroad vehicle.
  • a vertical cross-sectional view of a state in which a tightening nut having a lid portion provided on a head of a bolt is tightened to prevent loosening Side view of FIG. Plan view of FIG. Front view of the portal sheet incorporated in FIGS. 1, 2 and 3. Side view of FIG. As an example of an embodiment of the present invention, a vertical cross-sectional view of a tightening nut provided with a lid on the head. Side view of FIG. As an example of an embodiment of the present invention, a vertical cross-sectional view of a state in which a tightening nut provided with a lid portion on a bolt head is tightened to prevent loosening, and a gate thin plate is further prevented from coming off. Side view of FIG. Plan view of FIG.
  • a lid 7 is provided on the head of the tightening nut 5 so that the upper end of the bolt 1 is covered, and one vertical groove 8 is provided so that the lid is divided into two from above.
  • the upper member 18 is placed on the lower member through the bolt hole 19 and the tightening nut is tightened to the bolt, and then the portal thin plate 14 is inserted into the vertical groove 8 from above. It is driven and press-fitted between both side walls 9 of the vertical groove, the cutting blades 16 at the inner ends of both feet 15 are bite into the corners 3 around the upper end of the bolt, and the tightening nut is rotated on the bolt. Try to bind impossiblely.
  • a large number of horizontally long narrow chevron projections 10 are provided on both side walls 9 of the vertical groove 8 of the cover portion 7 of the tightening nut, and the distance between the crests of the chevron projections on both side walls is made smaller than the thickness of the gate thin plate 14.
  • the gate-shaped thin plate 14 is driven into the vertical groove 8 of the lid portion 7 of the tightening nut from above, and the cutting blades 16 at the inner ends of the two feet are bited into the corner portion 3 around the upper end portion of the bolt 1 for tightening.
  • a thin flat glass is driven into the triangular narrow groove 11 which is cut parallel to the vertical groove 8 of the lid portion of the tightening nut.
  • the wall 12 between the groove and the narrow groove is bent so as to cover the portal thin plate so as to prevent the portal thin plate from escaping.
  • the gate-shaped thin plate 14 is driven into the vertical groove 8 of the lid portion 7 of the tightening nut from above, and the cutting blades 16 at the inner end tips of both feet bite into the corner portion 3 around the upper end portion of the bolt 1 for tightening.
  • the gate-shaped thin plate pushing-in crown 17 is screwed into the male screw 13 on the outer periphery of the cover portion 7 of the tightening nut to press the gate-shaped thin plate to prevent the escape. ..
  • the external thread on the outer periphery of the lid is a fine thread, and the fitting is in a state where it can be strongly tightened.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

Le problème décrit par la présente invention est de fournir un procédé de prévention du desserrage d'un écrou fixé sur un boulon nécessitant une force de fixation élevée. La solution selon l'invention porte sur une structure de prévention de desserrage pour un écrou de fixation où une partie couvercle (7) d'un écrou de fixation est disposée sur une partie tête d'un écrou de fixation (5) et a une forme qui recouvre l'extrémité supérieure d'un boulon (1), une rainure verticale unique est disposée de façon à diviser la partie couvercle en deux depuis le dessus, le boulon est fixé à un élément inférieur (20) par un procédé d'implantation, un élément supérieur (18) est ensuite passé à travers un trou de boulon et placé sur le dessus de l'élément inférieur pour fixer l'écrou de fixation au boulon, une plaque mince de portail (14) est ensuite entraînée dans la rainure verticale (8) depuis le dessus et ajustée par pression entre les parois latérales de la rainure verticale, des bords de coupe des extrémités de pointe de partie interne des deux jambes de la plaque mince de portail sont intégrés dans les parties coin (3) dans la périphérie de l'extrémité supérieure du boulon, et l'écrou de fixation est relié de façon non rotative au boulon.
PCT/JP2019/046998 2018-12-10 2019-12-02 Structure de prévention de desserrage pour écrou fixé sur un boulon WO2020121865A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-246110 2018-12-10
JP2018246110A JP6536923B1 (ja) 2018-12-10 2018-12-10 ボルトに締め込むナットの緩み止の構造

Publications (1)

Publication Number Publication Date
WO2020121865A1 true WO2020121865A1 (fr) 2020-06-18

Family

ID=67144679

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/046998 WO2020121865A1 (fr) 2018-12-10 2019-12-02 Structure de prévention de desserrage pour écrou fixé sur un boulon

Country Status (2)

Country Link
JP (1) JP6536923B1 (fr)
WO (1) WO2020121865A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS298824Y1 (fr) * 1953-04-18 1954-07-26
JPH0136326B2 (fr) * 1982-09-02 1989-07-31 Furukawa Electric Co Ltd
JP6296186B1 (ja) * 2017-01-24 2018-03-20 良三 太田 ボルトに締め込むナットの緩み止め構造

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS298824Y1 (fr) * 1953-04-18 1954-07-26
JPH0136326B2 (fr) * 1982-09-02 1989-07-31 Furukawa Electric Co Ltd
JP6296186B1 (ja) * 2017-01-24 2018-03-20 良三 太田 ボルトに締め込むナットの緩み止め構造

Also Published As

Publication number Publication date
JP6536923B1 (ja) 2019-07-03
JP2020094677A (ja) 2020-06-18

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