WO2014021313A1 - Structure de fixation et procédé de fixation - Google Patents

Structure de fixation et procédé de fixation Download PDF

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Publication number
WO2014021313A1
WO2014021313A1 PCT/JP2013/070600 JP2013070600W WO2014021313A1 WO 2014021313 A1 WO2014021313 A1 WO 2014021313A1 JP 2013070600 W JP2013070600 W JP 2013070600W WO 2014021313 A1 WO2014021313 A1 WO 2014021313A1
Authority
WO
WIPO (PCT)
Prior art keywords
disc spring
cylindrical member
main body
inner peripheral
lid member
Prior art date
Application number
PCT/JP2013/070600
Other languages
English (en)
Japanese (ja)
Inventor
隆 柏木
Original Assignee
日本発條株式会社
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 日本発條株式会社 filed Critical 日本発條株式会社
Priority to JP2014528168A priority Critical patent/JPWO2014021313A1/ja
Publication of WO2014021313A1 publication Critical patent/WO2014021313A1/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
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F16B21/183—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details internal, i.e. with spreading action

Definitions

  • the present invention relates to a fixing structure and fixing method for fixing a lid member to a cylindrical member such as a case, and in particular, the shape of a disc spring used as a fixing means for fixing the lid member to a cylindrical member such as a case. Regarding improvements.
  • the lid member has a lid main body for closing the opening of the cylindrical member, and a flange portion formed on the outer peripheral portion of the lid main body and fitted to the outer peripheral surface of the cylindrical member. .
  • a lid side screw mounting portion is formed so as to protrude in the radial direction, and on the bottom side of the outer peripheral portion of the cylindrical member, a cylindrical member side screw mounting portion is formed so as to protrude in the radial direction.
  • the flange portion of the lid member is fitted to the outer peripheral surface of the cylindrical member, and the opening of the cylindrical member is closed by the lid body of the lid member.
  • a screw is prepared, and the male screw portion of the screw is passed through the hole portion of the lid-side screw mounting portion and screwed into the female screw portion of the cylinder member-side screw mounting portion. Thereby, the lid member is fixed to the cylindrical member.
  • a male screw portion is formed on the outer peripheral portion of a circular member having no flange portion as a lid member, and a female screw portion is formed on the inner peripheral portion of the cylindrical member
  • a technique for providing a grip portion on a circular member for example, Patent Document 3.
  • the circular member is rotated by the grip portion, and the male screw portion of the circular member is screwed into the female screw portion of the cylindrical member, thereby fixing the circular member to the cylindrical member.
  • an object of the present invention is to provide a technique capable of eliminating problems that occur when screw means are used as fixing means for fixing the lid member inside the cylindrical member.
  • the present inventor uses a spring means instead of using a screw means in order to eliminate a problem that occurs when the screw means is used in a fixing structure for fixing the lid member to the inner peripheral portion of the cylindrical member.
  • a spring means instead of using a screw means in order to eliminate a problem that occurs when the screw means is used in a fixing structure for fixing the lid member to the inner peripheral portion of the cylindrical member.
  • I studied it earnestly As a result of studying the use of a disc spring as a spring means that does not need to be used in combination with other members such as a snap ring, it is possible to eliminate problems caused by using a screw means by making the disc spring C-shaped.
  • the inventors have obtained knowledge that the cylindrical member can be easily installed on the inner peripheral portion, and have completed the present invention.
  • the fixing structure of the present invention is a fixing structure for fixing the lid member to the inner peripheral portion of the cylindrical member, and includes a dish-shaped main body, the main body having a C-shaped disc spring, and the cylindrical member A cylindrical member-side arrangement portion formed on the inner peripheral portion of the disc spring, the outer peripheral end portion of the disc spring main body being engaged with the cylindrical member-side arrangement portion, and the inner peripheral end portion of the main body of the lid member being The lid member is fixed to the cylindrical member by pressing one surface.
  • the disc-shaped main body uses a disc-shaped spring having a C-shape, and the outer peripheral end of the disc spring main body is engaged with the cylindrical member-side arrangement portion, and the inner circumference of the disc spring main body One surface of the lid member is pressed by the end.
  • the C-shaped disc springs can be arranged with one touch, the lid member can be easily fixed to the cylindrical member, and it does not take time and effort.
  • tapping is not necessary.
  • the C-shaped disc spring and the lid member can be arranged inside the cylindrical member side, there is no need to provide a fixing portion such as a screw mounting portion outside the cylindrical member, thereby saving space. Can be planned.
  • a disc-shaped disc spring is interposed between the lid member and the cylindrical member, and in such a disc spring, the inner peripheral portion of the cylindrical member causes the outer peripheral portion of the main body to radially outward. The movement can be prevented. Therefore, even when the lid member receives an impact from the outside, the transmission of the impact to the cylindrical member can be effectively suppressed. As a result, it is possible to protect the device and the like housed inside the cylindrical member.
  • the inner peripheral portion of the cylindrical member can prevent the outer periphery of the disc spring from moving outward in the radial direction, it is possible to prevent the interval between the open ends of the main body from increasing. . Therefore, since the generated load can be prevented from decreasing, a high load can be supported in the same manner as the endless disc spring. Furthermore, since the outer diameter of the main body can be adjusted according to the size of the inner peripheral portion when installed on the inner peripheral portion of the cylindrical member, it is possible to easily correspond to the size of the inner peripheral portion of the cylindrical member. . Further, it is not necessary to set the size of the disc spring with high accuracy at the time of manufacture, and the disc spring can be easily manufactured.
  • the tubular member side arrangement portion is a groove portion formed in the inner peripheral portion of the cylindrical member, and a large-diameter portion is formed at an end portion on one surface side of the lid member, and the outer peripheral end portion of the disc spring main body.
  • the step portion of the lid member can prevent the inner peripheral end of the disc spring body from moving radially inward.
  • a mode in which a removal hole is formed in at least one open end of the C-shape of the main body can be used. In this aspect, by engaging a jig with the hole for removal, at least one of the C-shaped open ends can be moved radially inward, so that the dish from the inner periphery of the tubular member can be obtained. The spring can be easily removed.
  • the fixing method of the present invention is a fixing method for assembling the fixing structure of the present invention.
  • a disc spring a disc spring whose outer diameter is set larger than the inner diameter of the inner peripheral portion of the cylindrical member in a free state is used.
  • the disc spring is inserted into the opening of the cylindrical member by elastically deforming the main body, narrowing the interval between the open ends of the main body and reducing the outer diameter of the main body, and
  • the lid member is fixed to the cylindrical member by engaging the end portion with the tubular member side arrangement portion and pressing one surface of the lid member with the inner peripheral end portion of the main body.
  • the fixing method of the present invention can obtain the same effect as the fixing structure of the present invention.
  • the fixing structure or the fixing method of the present invention it is possible to obtain an effect that it is possible to eliminate problems caused when the screw means is used.
  • the structure of the disc spring provided in the fixed structure which concerns on one Embodiment of this invention is represented, (A) is a top view of a disc spring, (B) is an axial direction expanded sectional view of a disc spring. BRIEF DESCRIPTION OF THE DRAWINGS
  • the schematic structure of the fixing structure which concerns on one Embodiment of this invention is represented, (A) is a whole perspective view, (B) is an axial direction expanded sectional view of the left half.
  • (A) to (C) are enlarged sectional views in the axial direction of the left half for explaining an assembling procedure of the fixing structure shown in FIG. It is an axial direction expanded sectional view showing the composition of the modification of the fixed structure concerning one embodiment of the present invention.
  • FIG. 1A and 1B show a configuration of a disc spring provided in a fixing structure according to an embodiment of the present invention.
  • FIG. 1A is a plan view of the disc spring
  • FIG. 1B is an enlarged sectional view in the axial direction of the disc spring.
  • the disc spring 100 includes a main body 110 having a disc shape (substantially conical shape) as shown in FIG. 1B, for example.
  • the main body 110 has a C-shape, for example, as shown in FIG.
  • the main body 110 has a front surface and a back surface, which are flat surfaces inclined at a predetermined angle from the horizontal direction in the axial cross section as shown in FIG. 1 (B), for example.
  • a circular hole 111 is formed in the center of the main body 110, and a space 113 is formed between the open ends 112, 112.
  • interval of the open end parts 112 and 112 can be set suitably.
  • a removal hole 114 is preferably formed in at least one open end 112 of the main body 110.
  • a removal hole 114 is formed in both open end portions 112.
  • the outer peripheral portion of the main body 110 has a circular shape.
  • the outer diameter of the disc spring 100 is set to be larger than, for example, the inner diameter of the cylindrical member in a free state before being installed on the inner peripheral portion of the cylindrical member (tubular member).
  • the open end portions 112 and 112 can be moved closer to and away from each other according to the size of the inner peripheral portion. Since the outer peripheral portion of the main body 110 can be prevented from moving radially outward by the inner peripheral portion of the cylindrical member, it can be elastically deformed so that the height of the main body 110 is lowered, like the endless disc spring. Thus, a high load can be supported and an impact can be absorbed.
  • the disc spring 100 In the manufacture of the disc spring 100, it can be formed into a C-shape by bending a material such as a wire, and other steps such as a disc forming step and a heat treatment step are performed in the same manner as a conventional disc spring, for example. be able to. In this case, bending molding and dish molding may be performed simultaneously.
  • FIG. 2 shows a schematic configuration of a fixing structure according to an embodiment of the present invention.
  • the fixing structure 120 is configured such that, for example, a circular member 140, which is a lid member, is fixed to an inner peripheral portion of a cylindrical member 130 (cylindrical member) by a disc spring 100. It is a structure.
  • the upper side is the opening side of the cylindrical member 130
  • the vertical direction is the axial direction
  • the horizontal direction is the radial direction.
  • the groove part 131 (cylindrical member side arrangement
  • the axial cross section of the groove 131 includes, for example, a groove bottom 132, an upper groove wall 133 (groove wall on one side) formed on the upper and lower ends of the groove bottom 132, and a lower groove wall 134 (on the opposite side of one surface). It has a U-shape with a groove wall).
  • the lower groove wall part 134 protrudes radially inward from the upper groove wall part 133, for example.
  • the circular member 140 has a circular shape that closes the opening of the cylindrical member 130, for example, and has a large-diameter portion 141 and a small-diameter portion 142 in order from the top surface, for example.
  • the large-diameter portion 141 is a convex portion that is set larger in diameter than the small-diameter portion 142, for example, and protrudes radially outward.
  • a lower stepped portion 143 is formed at the boundary between the large-diameter portion 141 and the small-diameter portion 142 in the lower surface portion of the circular member 140, for example, along the circumferential direction.
  • the small-diameter portion 142 of the circular member 140 is fitted in a portion below the lower groove wall portion 134 of the groove portion 131 in the inner peripheral portion of the cylindrical member 130, and the large-diameter portion of the circular member 140
  • the lower surface of 141 abuts on the upper surface of the lower groove wall portion 134 of the cylindrical member 130.
  • the groove bottom portion 132 of the cylindrical member 130 is spaced from the large-diameter portion 141 of the circular member 140, for example, and a gap is provided between the large-diameter portion 141.
  • the disc spring 100 is engaged with the outer peripheral end of the main body 110 in contact with the lower surface of the upper groove wall 133 of the groove 131 of the cylindrical member 130, for example, and the inner peripheral end of the main body 110 is, for example, a circular member. It arrange
  • the circular member 140 is moved downward (opening side) by the disc spring 100 while the lower surface of the large-diameter portion 141 of the circular member 140 is in contact with the upper surface of the lower groove wall portion 134 of the groove portion 131 of the cylindrical member 130. On the opposite side). Thereby, the circular member 140 is fixed to the inner peripheral portion of the cylindrical member 130.
  • the main body 110 in the disc spring 100, the main body 110 is arranged in a state (inclined state) while maintaining a dish shape (substantially conical shape), and the outer peripheral portion of the main body 110 is directed radially outward by the inner peripheral portion of the cylindrical member 130. The movement is prevented, and an increase in the distance between the open ends 112 and 112 is prevented.
  • a disc spring 100 is prepared.
  • the outer diameter is set larger than the inner diameter of the inner peripheral portion of the cylindrical member 130 in a free state before installation.
  • the disc spring 100 is inserted into the opening of the cylindrical member 130 and disposed on the inner peripheral portion of the cylindrical member 130.
  • the main body 110 is elastically deformed so that the disc spring 100 can be inserted into the opening of the cylindrical member 130, and the open ends 112, 112 of the main body 110 are separated.
  • the outer diameter of the main body 110 is reduced by narrowing the interval. In this case, a gap may be formed between the open ends 112 and 112, the open ends 112 and 112 may be in contact with each other, or the open ends 112 and 112 may be overlapped with each other. It may be.
  • the inner peripheral end portion of the main body 110 is brought into contact with the upper surface of the circular member 140, and the outer peripheral end portion of the main body 110 is brought into contact with the lower surface of the upper groove wall portion 133 of the groove portion 131 of the cylindrical member 130 of the cylindrical member 130.
  • the inner diameter of the groove 131 of the cylindrical member 130 is set larger than the inner diameter of the upper end of the inner peripheral portion of the cylindrical member 130. Therefore, in the engaged state of the disc spring 100 shown in FIG. Compared with the state shown in FIG. 3B, the main body 110 can be elastically deformed so as to expand outward in the radial direction in accordance with the inner diameter of the groove 131.
  • a gap may be formed between the open ends 112 and 112, the open ends 112 and 112 may be in contact with each other, or the open ends 112 and 112 may be overlapped with each other. It may be.
  • the fixing structure 120 using the disc spring 100 is obtained.
  • the disc spring 100 can press the circular member 140 downward, so that the circular member 140 can be prevented from being detached from the cylindrical member 130.
  • the C-shaped disc spring 100 can be arranged with a single touch, the circular member 140 can be easily fixed to the cylindrical member 130 without much time and effort. Moreover, since no screw means is used, tapping is not necessary. Further, since the disc spring 100 and the circular member 140 can be disposed inside the cylindrical member 130, there is no need to provide a fixing portion such as a screw mounting portion outside the cylindrical member 130, thereby saving space. it can. Further, a disc-shaped disc spring 100 is interposed between the circular member 140 and the cylindrical member 130, and in such a disc spring 100, the diameter of the outer peripheral portion of the main body 110 by the inner peripheral portion of the cylindrical member 130. Movement outward in the direction is prevented.
  • the circular member 140 is used as a lid member and the lid member receives an impact from the outside, the transmission of the impact to the cylindrical member 130 can be effectively suppressed. As a result, it is possible to protect the device and the like housed in the cylindrical member 130.
  • the inner peripheral portion of the cylindrical member 130 can prevent the outer peripheral portion of the main body 110 from moving outward in the radial direction, it is possible to prevent the interval between the open end portions 112 and 112 from increasing. Therefore, since the generated load can be prevented from decreasing, a high load can be supported in the same manner as the endless disc spring. Furthermore, since the outer diameter of the main body 110 can be adjusted according to the size of the inner peripheral portion when installed on the inner peripheral portion of the cylindrical member 130, it is possible to easily correspond to the size of the inner peripheral portion of the cylindrical member 130. it can. Furthermore, it is not necessary to set the size of the disc spring 100 with high accuracy at the time of manufacture, and the disc spring 100 can be easily manufactured.
  • the outer peripheral end of the main body 110 of the disc spring 100 is engaged with the upper groove wall 133 of the groove 131 of the cylindrical member 130, and the large-diameter portion 141 of the circular member 140 is engaged with the lower groove wall 134 of the groove 131.
  • the fixing structure 120 having a simple configuration in which the outer peripheral end portion of the body 110 of the disc spring 100 and the large-diameter portion 141 of the circular member 140 are engaged with one groove portion 131 of the cylindrical member 130 can be engaged. Can be obtained. Further, by engaging the jig with the removal hole 114 formed in the open end 112 of the main body 110, the open end 112 can be moved radially inward. The disc spring 100 can be easily removed.
  • the present invention has been described using the above embodiment, the present invention is not limited to the above embodiment, and the above embodiment can be variously modified within the scope of the present invention.
  • the groove part 131 was used as the cylindrical member side arrangement
  • the cylindrical member-side arrangement portion has a shape or structure that allows the outer peripheral end of the main body 110 to be engaged so that the disc member 100 can fix the circular member 140 to the inner peripheral portion of the cylindrical member 130. If you do.
  • a small diameter portion 144 whose diameter is set smaller than the large diameter portion 141 is formed on the upper surface of the circular member 140, for example, and the large diameter portion 141 and the diameter of the upper surface portion of the circular member 140 are formed.
  • an upper step 145 extending along the circumferential direction may be formed at the boundary with the small portion 144 as a lid member side arrangement portion.
  • the inner peripheral end portion of the main body 110 of the disc spring 100 can be engaged with the upper step portion 145.
  • the small diameter portion 144 is set to have a smaller diameter than the small diameter portion 142, for example.
  • the upper stepped portion 145 of the circular member 140 can prevent the inner peripheral end of the disc body 100 from moving inward in the radial direction.
  • the cylindrical member 130 is used as the cylindrical member of the fixing structure of the present invention
  • the circular member 140 is used as the lid member of the fixing structure of the present invention.
  • the present invention is not limited to this. Can be modified.
  • the radial cross-sectional shapes of the cylindrical member and the lid member do not have to be circular, but may be substantially circular or elliptical.
  • the shapes of the inner peripheral portion and the outer peripheral portion of the main body 110 are circular, but the shapes of the inner peripheral portion and the outer peripheral portion of the main body 110 are a cylindrical member and a lid member. May be set according to the cross-sectional shape in the radial direction, and may be a substantially circular shape, an elliptical shape, or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
  • Springs (AREA)

Abstract

La présente invention se rapporte à une structure de fixation et à un procédé de fixation qui peuvent éliminer les problèmes qui se produisent lorsqu'un moyen de vissage est utilisé comme moyen de fixation pour fixer un élément de couvercle à un élément cylindrique. Une rondelle ressort (100) comprend un corps (110) qui a une forme semblable à un disque. Le corps (110) a la forme d'un C. Une structure de fixation (120) est configurée de telle manière qu'un élément circulaire (140) (un élément de couvercle) soit fixé par la rondelle ressort (100) à la périphérie interne d'un élément cylindrique circulaire (130) (un élément cylindrique). Dans cette configuration, la rondelle ressort (100) est disposée de telle sorte que l'extrémité périphérique interne du corps (110) soit en contact avec la surface supérieure, et presse sur la surface supérieure, de l'élément de couvercle (140) et de telle sorte que l'extrémité périphérique externe du corps (110) soit en contact avec la rainure (131), et se loge dans cette rainure (131) (la section d'installation côté élément cylindrique) de l'élément cylindrique circulaire (130). Il est préférable que l'extrémité périphérique externe du corps (110) prenne appui sur la paroi de rainure supérieure (133) de la rainure (131) et que la section de grand diamètre (141) de l'élément circulaire (140) prenne appui sur la paroi de rainure inférieure (134) de la rainure (131).
PCT/JP2013/070600 2012-07-30 2013-07-30 Structure de fixation et procédé de fixation WO2014021313A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014528168A JPWO2014021313A1 (ja) 2012-07-30 2013-07-30 固定構造および固定方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012168489 2012-07-30
JP2012-168489 2012-07-30

Publications (1)

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WO2014021313A1 true WO2014021313A1 (fr) 2014-02-06

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PCT/JP2013/070600 WO2014021313A1 (fr) 2012-07-30 2013-07-30 Structure de fixation et procédé de fixation

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WO (1) WO2014021313A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017051880A1 (fr) * 2015-09-24 2017-03-30 Ntn株式会社 Palier à roulement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924974U (ja) * 1982-08-06 1984-02-16 株式会社デンソー 内燃機関用点火配電器
JPH0642514A (ja) * 1992-07-21 1994-02-15 Masao Kubota 止め輪
JP2005233362A (ja) * 2004-02-23 2005-09-02 Tokai Rubber Ind Ltd 防振用アクチュエータおよびそれを用いた能動型防振装置
WO2011145562A1 (fr) * 2010-05-15 2011-11-24 株式会社豊田自動織機 Compresseur à capacité variable

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5924974U (ja) * 1982-08-06 1984-02-16 株式会社デンソー 内燃機関用点火配電器
JPH0642514A (ja) * 1992-07-21 1994-02-15 Masao Kubota 止め輪
JP2005233362A (ja) * 2004-02-23 2005-09-02 Tokai Rubber Ind Ltd 防振用アクチュエータおよびそれを用いた能動型防振装置
WO2011145562A1 (fr) * 2010-05-15 2011-11-24 株式会社豊田自動織機 Compresseur à capacité variable

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017051880A1 (fr) * 2015-09-24 2017-03-30 Ntn株式会社 Palier à roulement

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