WO2014088043A1 - Bouchon pour trou - Google Patents

Bouchon pour trou Download PDF

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Publication number
WO2014088043A1
WO2014088043A1 PCT/JP2013/082630 JP2013082630W WO2014088043A1 WO 2014088043 A1 WO2014088043 A1 WO 2014088043A1 JP 2013082630 W JP2013082630 W JP 2013082630W WO 2014088043 A1 WO2014088043 A1 WO 2014088043A1
Authority
WO
WIPO (PCT)
Prior art keywords
peripheral wall
mounting hole
outer peripheral
hole
wall portion
Prior art date
Application number
PCT/JP2013/082630
Other languages
English (en)
Japanese (ja)
Inventor
剛裕 佐藤
Original Assignee
株式会社ニフコ
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 株式会社ニフコ filed Critical 株式会社ニフコ
Publication of WO2014088043A1 publication Critical patent/WO2014088043A1/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
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J13/00—Covers or similar closure members for pressure vessels in general
    • F16J13/02—Detachable closure members; Means for tightening closures
    • F16J13/14—Detachable closure members; Means for tightening closures attached exclusively by spring action or elastic action

Definitions

  • the present invention relates to a hole plug that covers a hole formed in a mounting member.
  • Patent Document 1 Conventionally, as a hole plug, for example, there is Patent Document 1.
  • a cylindrical outer peripheral wall portion extending downward from an inner peripheral edge portion of a flange portion covering a hole edge peripheral surface of a mounting hole formed in the mounting member, and an inner side from a lower end of the outer peripheral wall portion. And an inner peripheral wall surface that is folded back and extends upward.
  • a plurality of engaging projections formed radially are formed on the outer peripheral wall portion.
  • the present invention provides a hole plug that can reduce the insertion force into the mounting hole and improve the productivity.
  • a flange portion that covers a hole edge peripheral surface of a mounting hole drilled in a mounting member, and extends from an inner peripheral edge of the flange portion toward an insertion direction into the mounting hole.
  • a cylindrical body whose inner side is closed, and the shape seen from the insertion direction is gradually changed between the distal end portion and the root portion, and the portion on the distal end portion side when inserted into the mounting hole Part of the contact hole is in contact with a part of the inner peripheral part of the mounting hole, and a contact range gradually changing part is formed in which the entire periphery of the portion on the base part side contacts the entire periphery of the inner peripheral part of the mounting hole.
  • a hole plug having an outer peripheral wall portion and a locking claw that is formed to protrude from an outer peripheral surface of a base portion of the outer peripheral wall portion and engages with a peripheral portion of the mounting hole.
  • the contact range is formed between the tip portion and the root portion of the outer peripheral wall portion, and the shape seen from the insertion direction is gradually changed. A part of the portion on the distal end side of the deformed part comes into contact with a part of the inner peripheral part of the mounting hole. Thereafter, when the outer peripheral wall portion is further inserted into the mounting hole, the entire circumference of the base portion side portion of the contact range gradually changing portion comes into contact with the entire circumference of the inner peripheral portion of the mounting hole.
  • the locking claw protrudingly formed on the outer wall surface of the base portion of the outer peripheral wall portion is engaged with the mounting hole, and the mounting hole is closed.
  • the contact range with the mounting hole gradually increases, and the insertion resistance gradually increases.
  • the insertion force is reduced as compared with the configuration in which the entire circumference of the outer peripheral wall portion is in contact with the inner peripheral portion of the mounting hole from the beginning of insertion.
  • the distance between the base point when the outer peripheral wall portion is bent toward the inner peripheral side and the tip of the outer peripheral wall portion is increased, the insertion force is also reduced at this point.
  • the shape of the outer peripheral wall portion becomes simple, and the hole plug can be easily taken out from the mold, thereby improving productivity.
  • the shape of the contact range gradually changing portion viewed from the insertion direction is changed from a circular shape to a rectangular shape. Good.
  • the locking claw that is formed to protrude from the outer wall surface of the base portion of the outer peripheral wall portion is engaged with the mounting hole, and the mounting hole is closed.
  • the contact range with the mounting hole gradually increases, and the insertion resistance gradually increases.
  • the insertion force is reduced as compared with a configuration in which the entire circumference of the outer peripheral wall portion is in contact with the inner peripheral portion of the mounting hole from the initial stage of insertion.
  • the distance between the base point when the outer peripheral wall portion is bent toward the inner peripheral side and the tip of the outer peripheral wall portion is increased, the insertion force is also reduced at this point.
  • the shape of the outer peripheral wall portion becomes simple, and the hole plug can be easily taken out from the mold, thereby improving productivity.
  • the shape of the contact range gradually changing portion viewed from the insertion direction is changed from a rectangle to a circle. May be.
  • the hole plug when the outer peripheral wall portion of the hole plug is inserted into the circular mounting hole, the hole plug is formed between the tip portion and the root portion of the outer peripheral wall portion, and the shape seen from the insertion direction gradually changes. A part of the rectangular part on the tip end side of the contact range gradual change part contacts a part of the inner peripheral part of the mounting hole. Thereafter, when the outer peripheral wall portion is further inserted into the attachment hole, the entire circumference of the circular portion on the base portion side of the contact range gradually changing portion comes into contact with the entire circumference of the inner peripheral portion of the attachment hole.
  • the locking claw that is formed to protrude from the outer wall surface of the base portion of the outer peripheral wall portion is engaged with the mounting hole, and the mounting hole is closed.
  • the contact range with the mounting hole gradually increases, and the insertion resistance gradually increases.
  • the insertion force is reduced as compared with a configuration in which the entire circumference of the outer peripheral wall portion is in contact with the inner peripheral portion of the mounting hole from the initial stage of insertion.
  • the distance between the base point when the outer peripheral wall portion is bent toward the inner peripheral side and the tip of the outer peripheral wall portion is increased, the insertion force is also reduced at this point.
  • the shape of the outer peripheral wall portion becomes simple, and the hole plug can be easily taken out from the mold, thereby improving productivity.
  • a plurality of the locking claws may be formed at a predetermined interval along a circumferential direction of the outer wall surface.
  • a plurality of the locking claws of the hole plug are formed at predetermined intervals along the circumferential direction of the outer wall surface of the outer peripheral wall portion. For this reason, compared with the structure which formed the latching claw continuously in the perimeter along the circumferential direction of the outer peripheral wall part of a hole plug, the insertion force to the attachment hole of a hole plug can be made small.
  • the outer peripheral wall portion is spaced apart from the inner peripheral wall and extends in the insertion direction.
  • a cylindrical inner peripheral wall portion connected to the tip of the inner peripheral wall, and a face plate having a concave portion recessed in the insertion direction at the center while closing the inside of the root portion of the inner peripheral wall portion.
  • a cylindrical inner peripheral wall portion is formed which extends in the insertion direction with a space inside the outer peripheral wall portion, and has a distal end connected to the distal end of the outer peripheral wall portion.
  • a concave portion that is recessed in the direction of insertion into the mounting hole is formed in the central portion of the face plate that closes the inside of the root portion of the inner peripheral wall portion. For this reason, the hole plug can be easily attached to the attachment hole by pressing the concave portion of the face plate in the direction of insertion into the attachment hole.
  • the first aspect of the present invention is configured as described above, the insertion force into the mounting hole can be reduced, and the productivity can be improved.
  • the second aspect of the present invention has the above-described configuration, the insertion force into the mounting hole can be reduced and the productivity can be improved.
  • the third aspect of the present invention has the above-described configuration, the insertion force into the mounting hole can be reduced and the productivity can be improved.
  • the fourth aspect of the present invention is configured as described above, the insertion force into the mounting hole can be reduced.
  • the fifth aspect of the present invention is configured as described above, it can be easily attached to the attachment hole.
  • FIG. 1 It is the perspective view seen from the attachment hole side which shows the state before insertion to the attachment hole of the hole plug which concerns on 1st Embodiment of this invention. It is the perspective view seen from the hole plug side which shows the state before insertion to the attachment hole of the hole plug which concerns on 1st Embodiment of this invention. It is the perspective view seen from the attachment hole side which shows the state in the middle of the insertion to the attachment hole of the hole plug which concerns on 1st Embodiment of this invention. It is the top view seen from the insertion side which shows the hole plug which concerns on 1st Embodiment of this invention. It is a side view showing a hole plug concerning a 1st embodiment of the present invention.
  • FIG. 6 is a sectional view taken along the line 6-6 in FIG. It is a side view which shows the hole plug which concerns on 2nd Embodiment of this invention. It is the perspective view seen from the attachment hole side which shows the state before insertion to the attachment hole of the hole plug which concerns on 3rd Embodiment of this invention. It is the perspective view seen from the attachment hole side which shows the state in the middle of the insertion to the attachment hole of the hole plug which concerns on 3rd Embodiment of this invention. It is sectional drawing corresponding to FIG. 6 which shows the hole plug which concerns on 4th Embodiment of this invention.
  • FIGS. (First embodiment) Next, a first embodiment of the hole plug of the present invention will be described with reference to FIGS.
  • members (components) having the same or corresponding functions are denoted by the same reference numerals and description thereof is omitted as appropriate.
  • An arrow PS in the drawing indicates the direction of insertion of the hole plug into the mounting hole.
  • a vehicle body panel 10 as an example of an attachment member is provided with a square attachment hole 12 as an example of a rectangle, and the attachment hole 12 is a work hole or the like. Used as. Further, a hole plug 14 formed of a synthetic resin can be attached to and detached from the attachment hole 12, and the attachment hole 12 is closed by attaching the hole plug 14 to the attachment hole 12. .
  • a flange portion 16 having a constant width W1 is formed at one end of the hole plug 14 in the direction along the axis 14A, which is the insertion direction of the mounting hole 12 in the hole plug 14, over the entire circumference. It is formed in a shape.
  • the flange portion 16 is inclined from the inner peripheral edge portion 16 ⁇ / b> A toward the outer peripheral edge portion 16 ⁇ / b> B toward the distal end side in the insertion direction (the lower side in FIG. 5). As shown by a two-dot chain line in FIG. 6, in a state where the hole plug 14 closes the attachment hole 12, the flange portion 16 covers the hole edge peripheral surface 12 ⁇ / b> A on the upper surface side of the attachment hole 12.
  • a cylindrical outer peripheral wall portion 18 is formed from the inner peripheral edge portion 16A of the flange portion 16 toward the insertion direction into the mounting hole 12 (downward in FIG. 6), and the outer peripheral wall portion 18 is formed of the hole plug 14. Is formed along the axial center 14A.
  • the distal end portion 18 ⁇ / b> A of the outer peripheral wall portion 18 has a circular shape as an example of a circular shape as viewed from the direction of insertion into the mounting hole 12, and is large enough to be inserted into the mounting hole 12. It has become. Further, the distal end portion 18A of the outer peripheral wall portion 18 gradually increases in diameter from the distal end side toward the root portion side, and is easily inserted into the mounting hole 12.
  • the base portion 18 ⁇ / b> B of the outer peripheral wall portion 18 has a square shape as an example of a rectangle as viewed from the direction of insertion into the mounting hole 12, and the entire periphery when inserted into the mounting hole 12 is the mounting hole 12.
  • the inner circumference portion 12B is in contact with the entire circumference.
  • a contact range gradually changing portion 18C that gently connects the tip 18A and the root 18B. That is, the shape of the contact range gradually changing portion 18C viewed from the direction of insertion into the mounting hole 12 is gradually changed from a circle to a square.
  • locking claws 20 project from the outer peripheral surface of the root portion 18 ⁇ / b> B of the outer peripheral wall portion 18, and each of the locking claws 20 has a base portion 18 ⁇ / b> B of the outer peripheral wall portion 18 in plan view. It protrudes in an arc shape outwardly from the outer wall surface.
  • a plurality of the locking claws 20 are formed at predetermined intervals along the circumferential direction of the outer peripheral wall portion 18. In this embodiment, the locking claws 20 are respectively formed at the center portions of a pair of opposing sides of the outer peripheral wall portion 18. ing.
  • each locking claw 20 has a triangular shape in a side view.
  • the outer peripheral surface 20 ⁇ / b> A of the locking claw 20 is attached to the mounting hole 12.
  • the locking claw 20 is elastically deformed in the inner direction (in the direction of arrow A in FIG. 6) together with the outer peripheral wall portion 18.
  • the latching claw 20 passes the attachment hole 12, the latching claw 20 moves outside by the restoring force of the outer peripheral wall portion 18, and each latching claw 20 is attached as shown by a two-dot chain line in FIG.
  • the body panel 10 is sandwiched between the flange portion 16 and the peripheral edge portion of the hole 12.
  • a cylindrical inner peripheral wall portion 26 is extended in the insertion direction into the mounting hole 12 with an interval 24.
  • the inner peripheral wall portion 26 is formed along the axial center 14 ⁇ / b> A of the hole plug 14, and the front end 26 ⁇ / b> A on the opposite side of the flange portion 16 is connected to the front end 18 ⁇ / b> D of the outer peripheral wall portion 18.
  • the inner side of the base portion 26 ⁇ / b> B on the flange portion 16 side of the inner peripheral wall portion 26 is closed by a circular face plate 34.
  • a concave portion 34 ⁇ / b> A that is recessed in a hemispherical shape toward the insertion direction into the mounting hole 12 is formed in the central portion of the face plate 34.
  • the thickness M1 of the face plate 34 is thicker than the thickness M2 of the inner peripheral wall portion 26 (M1> M2).
  • the tip portion 18 ⁇ / b> A having a circular shape when viewed from the insertion direction in the outer peripheral wall portion 18 of the hole plug 14 is formed into the square attachment hole 12. Insert into. At this time, the distal end portion 18A of the outer peripheral wall portion 18 gradually increases in diameter from the distal end side toward the root portion side, and is easily inserted into the mounting hole 12.
  • the shape of the contact range gradually changing portion 18C of the outer peripheral wall portion 18 viewed from the insertion direction into the attachment hole 12 is circular as shown in FIG. A part P1 of the portion on the tip end 18A side that is in contact with a part of the inner peripheral part 12B of the mounting hole 12.
  • the contact position with the inner peripheral portion 12B of the mounting hole 12 in the contact range gradually changing portion 18C is 3 from the position of the one-dot chain line in FIG. Move to the dotted line position.
  • the contact range between the contact range gradually changing portion 18 ⁇ / b> C and the inner peripheral portion 12 ⁇ / b> B of the mounting hole 12 gradually expands along the circumferential direction.
  • the entire circumference of the portion on the base portion 18B side of the contact range gradually changing portion 18C of the outer peripheral wall portion 18 is in contact with the entire circumference of the inner peripheral portion 12B of the mounting hole 12.
  • the contact range with the inner peripheral portion 12B of the attachment hole 12 gradually increases. Insertion resistance gradually increases. As a result, the insertion force is reduced as compared with a configuration in which the entire circumference of the outer peripheral wall portion 18 is in contact with the inner peripheral portion of the mounting hole from the beginning of insertion. Furthermore, as shown in FIG. 6, since the distance L1 between the base point K1 when the outer peripheral wall portion 18 bends toward the inner peripheral side (the direction of arrow A in FIG.
  • the hole plug 14 of this embodiment unlike the patent document 1, since it is not necessary to form an engagement protrusion radially on the outer peripheral wall part 18, the shape of the outer peripheral wall part 18 becomes simple, and the hole plug 14 is attached. Productivity is improved because it can be easily removed from the mold.
  • a plurality of locking claws 20 of the hole plug 14 are formed at predetermined intervals along the circumferential direction. For this reason, the insertion force of the hole plug 14 into the mounting hole 12 can be reduced as compared with the configuration in which the locking claw 20 is continuously formed along the circumferential direction of the outer peripheral wall portion 18 of the hole plug 14.
  • the inner peripheral wall portion 26 is extended inside the outer peripheral wall portion 18 with a space therebetween, and the inner side of the root portion 26B on the flange portion 16 side of the inner peripheral wall portion 26 is circular.
  • the face plate 34 is closed.
  • a concave portion 34 ⁇ / b> A that is recessed in a hemispherical shape toward the insertion direction into the mounting hole 12 is formed in the central portion of the face plate 34. For this reason, the hole plug 14 can be easily attached to the attachment hole 12 by pressing the recess 34 ⁇ / b> A in the insertion direction (arrow PU direction) into the attachment hole 12.
  • the locking claw 20 is formed to continuously protrude in the circumferential direction along the outer periphery of the root portion 18 ⁇ / b> B of the outer peripheral wall portion 18. For this reason, the locking claw 20 engages with the peripheral edge portion of the mounting hole 12 on the entire circumference of the outer peripheral wall portion 18 with the mounting hole 12 closed by the hole plug 14. As a result, it is possible to make it difficult for the hole plug 14 to be detached from the mounting hole 12.
  • the mounting hole 12 of the body panel 10 is a circle as an example of a circular shape.
  • the tip end portion 18A of the outer peripheral wall portion 18 of the hole plug 14 has a square shape as viewed from the direction of insertion into the mounting hole 12, and is sized to be inserted into the mounting hole 12. Further, the distal end portion 18A of the outer peripheral wall portion 18 is gradually enlarged from the distal end side toward the root portion side, and is easily inserted into the mounting hole 12.
  • the base portion 18B of the outer peripheral wall portion 18 has a circular shape as an example of a circular shape as viewed from the direction of insertion into the mounting hole 12, and the entire periphery when inserted into the mounting hole 12 is the mounting hole.
  • the 12 inner peripheral portions 12B are in contact with the entire circumference.
  • a contact range gradually changing portion 18C that gently connects the tip 18A and the root 18B. That is, the shape of the contact range gradual change portion 18C viewed from the insertion direction into the mounting hole 12 gradually changes from a square to a circle.
  • the contact range with the mounting hole 12 gradually increases in the contact range gradually changing portion 18C, and the base portion 18B in the contact range gradually changing portion 18C.
  • the perimeter is contacting the perimeter of the inner peripheral part 12B of the attachment hole 12.
  • the insertion force into the mounting hole 12 can be reduced and the productivity can be improved as in the first embodiment.
  • the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art.
  • the shape viewed from the insertion direction of the distal end portion 18A of the outer peripheral wall portion 18 of the hole plug 14 into the attachment hole 12 corresponding to the attachment hole 12 that is a square as an example of a rectangle. Is a circle as an example of a circular shape, and the shape seen from the insertion direction of the root portion 18B of the outer peripheral wall portion 18 into the mounting hole 12 is a square.
  • the mounting hole 12 has another rectangular shape or the like, and the shape of the outer peripheral wall portion 18 of the hole plug 14 viewed from the insertion direction of the tip end portion 18A into the mounting hole 12 is an ellipse, an ellipse, or the like. It is good also considering the shape seen from the insertion direction to the attachment hole 12 of the base part 18B of the outer peripheral wall part 18 as another rectangle, such as a rectangle.
  • the mounting hole 12 is formed into another circular shape such as an oval or an ellipse, and the shape of the outer peripheral wall portion 18 of the hole plug 14 viewed from the insertion direction into the mounting hole 12 is 18 Another rectangular shape may be used, and the shape seen from the insertion direction of the root portion 18B of the outer peripheral wall portion 18 into the mounting hole 12 may be another circular shape such as an oval or an ellipse.
  • the shape of the mounting hole 12 may be other shapes such as a rectangle or a triangle other than a circular shape, and the shape of the outer peripheral wall 18 viewed from the direction of insertion into the mounting hole 12 also corresponds to the shape of the mounting hole 12. Other shapes may be used.
  • the hole plug 14 of each of the above embodiments has a cylindrical inner peripheral wall portion 26 that extends in the insertion direction into the mounting hole 12 with an interval 24 inside the outer peripheral wall portion 18.
  • the inner side of the outer peripheral wall 18 may be closed by a circular bottom plate 50 formed at the tip 18D, and the inner peripheral wall may not exist.
  • the two locking claws 20 are formed, but the number of the plurality of locking claws 20 may be two or more.
  • the planar view shape of the latching claw 20 is good also as a square shape and a triangular shape other than circular arc shape.
  • the configuration in which the mounting hole 12 formed in the body panel 10 of the automobile as an example of the mounting member is closed by the hole plug 14 has been described.
  • the hole plug 14 of the present invention is the body panel of the automobile. It is also possible to close attachment holes formed in attachment members other than 10.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Vessels And Lids Thereof (AREA)

Abstract

Une section de changement de zone de contact progressif (18C) raccordant la section de pointe (18A) à la section de base (18B) de la paroi périphérique (18) d'un bouchon pour trou (14) est conçue de sorte que la forme vue depuis la direction d'insertion dans un trou d'installation (12) change progressivement et lorsqu'elle est insérée dans le trou d'installation (12), une partie de la partie du côté de section de pointe (18A) entre en contact avec des parties de la circonférence interne (12B) du trou d'installation (12). Dans l'entre-temps, la partie de la section de changement de zone de contact progressif (18C) du côté de section de base (18B) est conçue de sorte que toute sa circonférence entre en contact avec toute la circonférence interne (12B) du trou d'installation (12). Le bouchon pour trou est conçu de sorte que lorsqu'il est inséré dans un trou d'installation (12), la zone de contact avec le trou d'installation (12) se développe progressivement depuis le côté de section de pointe (18A) vers le côté de section de base (18B) de la section de changement de zone de contact progressif (18C).
PCT/JP2013/082630 2012-12-07 2013-12-04 Bouchon pour trou WO2014088043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012-268189 2012-12-07
JP2012268189A JP6088231B2 (ja) 2012-12-07 2012-12-07 ホールプラグ

Publications (1)

Publication Number Publication Date
WO2014088043A1 true WO2014088043A1 (fr) 2014-06-12

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Application Number Title Priority Date Filing Date
PCT/JP2013/082630 WO2014088043A1 (fr) 2012-12-07 2013-12-04 Bouchon pour trou

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JP (1) JP6088231B2 (fr)
WO (1) WO2014088043A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6571367B2 (ja) * 2015-03-31 2019-09-04 株式会社イノアックコーポレーション ホールプラグ
JP6783748B2 (ja) * 2017-12-27 2020-11-11 トヨタ車体株式会社 ホールプラグ
JP6947628B2 (ja) * 2017-12-27 2021-10-13 トヨタ車体株式会社 ホールプラグの取付構造
US11577479B2 (en) * 2018-07-30 2023-02-14 The Boeing Company Locking hole plug for sealing holes in composite structures

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119184U (fr) * 1987-01-29 1988-08-02
JP2008224029A (ja) * 2007-03-12 2008-09-25 Trw Automotive Electronics & Components Gmbh 壁の開口部内に挿入される合い釘
JP2009293661A (ja) * 2008-06-03 2009-12-17 Piolax Inc プラグ
JP2012102757A (ja) * 2010-11-05 2012-05-31 Piolax Inc ホールプラグおよびホールプラグの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63119184U (fr) * 1987-01-29 1988-08-02
JP2008224029A (ja) * 2007-03-12 2008-09-25 Trw Automotive Electronics & Components Gmbh 壁の開口部内に挿入される合い釘
JP2009293661A (ja) * 2008-06-03 2009-12-17 Piolax Inc プラグ
JP2012102757A (ja) * 2010-11-05 2012-05-31 Piolax Inc ホールプラグおよびホールプラグの製造方法

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JP2014114851A (ja) 2014-06-26
JP6088231B2 (ja) 2017-03-01

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