WO2018073958A1 - Structure d'agrafage, produit assemblé formé par agrafage et procédé d'agrafage - Google Patents

Structure d'agrafage, produit assemblé formé par agrafage et procédé d'agrafage Download PDF

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Publication number
WO2018073958A1
WO2018073958A1 PCT/JP2016/081284 JP2016081284W WO2018073958A1 WO 2018073958 A1 WO2018073958 A1 WO 2018073958A1 JP 2016081284 W JP2016081284 W JP 2016081284W WO 2018073958 A1 WO2018073958 A1 WO 2018073958A1
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WO
WIPO (PCT)
Prior art keywords
hole
caulking
shaft
caulking structure
staking
Prior art date
Application number
PCT/JP2016/081284
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English (en)
Japanese (ja)
Inventor
明紀 塚口
洋己 赤塚
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2016/081284 priority Critical patent/WO2018073958A1/fr
Priority to JP2018546123A priority patent/JP6745893B2/ja
Publication of WO2018073958A1 publication Critical patent/WO2018073958A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D37/00—Tools as parts of machines covered by this subclass

Definitions

  • the present invention relates to a caulking structure, a caulking assembly product, and a caulking method for caulking a shaft and fixing it to a member.
  • Patent Document 1 describes a caulking method in which a through hole is formed in a polygon and caulking is performed so that an end of a shaft passing through the through hole is plastically deformed into substantially the same shape as the polygon.
  • the sides of the shaft that are plastically deformed to have approximately the same shape as the polygon come into contact with the corresponding sides of the polygonal through hole, so that the shaft can withstand high rotational torque.
  • the present invention solves the above-described problems, and an object thereof is to obtain a caulking structure, a caulking assembly, and a caulking method that can increase an allowable lateral pressure and an allowable pulling force.
  • the caulking structure according to the present invention includes a member having a polygonal through-hole, a shaft that is passed through the through-hole and fixed to the member by caulking, and is intermittently provided along the opening peripheral edge of the through-hole. Alternatively, a plurality of recesses are provided.
  • the allowable side pressure and the allowable pulling force can be increased by the shaft plastically deformed by caulking entering the recess.
  • FIG. 4A is a top view showing an example of a conventional caulking structure (before caulking).
  • FIG. 4B is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line AA in FIG. 4A.
  • FIG. 5A is a top view showing another example (before caulking) of a conventional caulking structure before caulking.
  • FIG. 5B is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line BB in FIG. 5A.
  • 6A is a perspective view showing a through hole (example 1) of a caulking structure according to Embodiment 1.
  • FIG. FIG. 6B is a top view showing the caulking structure (before caulking) of FIG. 6A.
  • 6C is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line CC in FIG. 6B.
  • FIG. 7A is a perspective view showing a through hole (example 2) having a caulking structure according to the first embodiment.
  • FIG. 7B is a top view showing the caulking structure (before caulking) of FIG. 7A.
  • FIG. 7C is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line DD in FIG. 7B.
  • FIG. 8A is a top view showing a through hole (example 3) having a caulking structure.
  • FIG. 8B is a top view showing a through hole (Example 4) having a caulking structure.
  • FIG. 8C is a top view showing a through hole (Example 5) having a caulking structure.
  • FIG. 9A is a top view showing a through hole (Example 6) having a caulking structure.
  • FIG. 9B is a top view showing a through hole (Example 7) having a caulking structure.
  • FIG. 1 is a perspective view showing a caulking assembly 1 according to Embodiment 1 of the present invention.
  • FIG. 2 is a side view showing a state in which the shaft 3 a is passed through the through hole of the member 2.
  • FIG. 3 is a side view showing the caulking assembly 1.
  • the caulking assembly 1 is a member 2 and a member 3 fixed by a caulking portion 4, and is realized by, for example, a chassis component of an in-vehicle device.
  • the member 2 is provided with a through hole
  • the member 3 is provided with a shaft 3a.
  • the shaft 3a is passed through the through-hole of the member 2, and the shaft 3a protruding from the through-hole is pressed from the axial direction and plastically deformed so as to spread in the outer diameter direction (caulking).
  • the caulking portion 4 having the shaft 3a wider than the opening diameter of the through hole is formed, and the shaft 3a presses the inner periphery of the through hole inside the through hole. In this way, the member 2 and the member 3 are fixed, and the caulking assembly 1 is configured.
  • FIG. 4A is a top view showing an example of a conventional caulking structure (before caulking), and a portion where the caulking portion 4 is formed is indicated by a broken line.
  • FIG. 4B is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line AA in FIG. 4A.
  • the through hole 2a of the member 2 is circular.
  • the caulking portion 4 is formed, and the shaft 3a is plastically deformed so as to press the inner periphery of the through hole 2a.
  • the area where the plastically deformed shaft 3a presses the inner periphery of the through hole 2a is increased, that is, the opening diameter of the through hole 2a and the cross-sectional area of the shaft 3a are increased.
  • the through-hole 2a and the shaft 3a are enlarged, the space of the caulking portion is increased by that amount, and there is a concern that the caulking assembly is increased in size.
  • FIG. 5A is a top view showing another example (before caulking) of a conventional caulking structure before caulking, and a portion where caulking portion 4 is formed is indicated by a broken line.
  • FIG. 5B is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line BB in FIG. 5A.
  • the through hole 2b of the member 2 is a polygon (regular hexagon).
  • a caulking portion 4 is formed as shown in FIG. 5B, and the shaft 3a is plastically deformed into a polygonal shape inside the through hole 2b.
  • the side of the shaft 3a which is plastically deformed and has substantially the same shape as the polygon, comes into contact with the corresponding side in the polygonal through hole 2b. For this reason, the shaft 3a can withstand a higher rotational torque than the structure shown in FIGS. 4A and 4B.
  • FIG. 6A is a perspective view showing a through hole (example 1) having a caulking structure according to the first embodiment.
  • FIG. 6B is a top view showing the caulking structure (before caulking) of FIG. 6A, and the portion where the caulking portion 4 is formed is indicated by a broken line.
  • 6C is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line CC in FIG. 6B.
  • the through hole 2b of the member 2 is a polygon (regular hexagon). Further, the member 2 is formed with recesses 5, 5 and 5 intermittently along the opening peripheral edge of the through hole 2b on the side where the shaft 3a is caulked.
  • the recess 5 is a recess in which the inner wall surface of the through hole 2b is recessed from the peripheral edge of the opening to the middle of the caulking side.
  • the sheet metal constituting the member 2 is about half the plate thickness. It is a thing dented to.
  • the concave portion 5 a concave portion formed with a stamp or the like can be used.
  • the locations where the recesses 5 are provided are polygonal sides at the opening peripheral edge of the through-hole 2b, and as shown in FIGS. 6A and 6B, each of the three adjacent sides in the hexagon of the through-hole 2b. A recess 5 is provided.
  • the shaft 3a is passed through the through hole 2b, and the shaft 3a is caulked on the side where the recess 5 is provided. 6C, the shaft 3a is plastically deformed into a polygonal shape inside the through hole 2b, and the plastically deformed shaft 3a enters the recess 5. That is, the plastically deformed shaft 3a is in a state of pressing the inner wall surface of the through hole 2b and is in contact with the bottom surface portion and the inner peripheral portion of the recess 5.
  • the portion of the shaft 3a that has entered the recess 5 serves as a detent. Therefore, the allowable rotational torque can be increased.
  • the portion of the shaft 3a that has entered the recess 5 due to plastic deformation and the side wall of the recess 5 are in contact with each other.
  • the applied side pressure per unit area can be reduced. Thereby, the allowable lateral pressure can be increased as compared with the conventional caulking structure.
  • the portion where the opening peripheral edge portion of the through hole 2b and the caulking portion 4 are in contact in addition to the portion where the opening peripheral edge portion of the through hole 2b and the caulking portion 4 are in contact, the portion where the shaft 3a and the recess 5 are in contact with each other in the drawing direction of the shaft 3a. Since the movement is restricted, the allowable pulling force can be increased as compared with the conventional caulking structure.
  • the through-hole 2b has three or more inner wall surfaces which the outer peripheral part of the axis
  • the center of the shaft 3a is determined by the inner wall surface of the through hole 2b, the accuracy of the shaft center can be improved.
  • 6A to 6C show the case where the through hole 2b is a regular hexagon, it may be a triangle, a quadrangle, a pentagon, or a heptagon or more. In other words, it may be a polygon having three or more inner wall surfaces with which the outer peripheral portion of the shaft 3a contacts.
  • FIG. 7A is a perspective view showing a through hole (example 2) having a caulking structure according to the first embodiment.
  • FIG. 7B is a top view showing the caulking structure (before caulking) of FIG. 7A, and a portion where the caulking portion 4 is formed is indicated by a broken line.
  • FIG. 7C is a cross-sectional arrow view showing a state in which the caulking structure (after caulking) is cut along the line DD in FIG. 7B.
  • the through hole 2b of the member 2 is a polygon (regular hexagon) as shown in FIGS. 7A and 7B. Further, the member 2 is formed with recesses 6, 6 and 6 intermittently along the opening peripheral edge of the through hole 2b on the side where the shaft 3a is caulked.
  • the concave portion 6 is a concave portion in which the inner wall surface of the through hole 2b is recessed from the opening peripheral edge portion to the opening peripheral edge portion on the opposite side.
  • the concave portion 6 is provided on a polygonal side portion at the opening peripheral edge portion of the through hole 2b.
  • the hexagonal shape of the through hole 2b is not adjacent 3 A recess 6 is provided in each of the two sides.
  • the shaft 3a is passed through the through hole 2b, and the shaft 3a is caulked on the side where the recess 6 is provided. 7C, the shaft 3a is plastically deformed into a polygonal shape inside the through hole 2b, and the plastically deformed shaft 3a enters the recess 6. That is, the plastically deformed shaft 3 a is in a state of pressing the inner wall surface of the through hole 2 b and in contact with the inner peripheral portion of the recess 6.
  • the plastically deformed shaft 3a is more axial than the concave portion 5. It enters the concave portion 6 that is long in the direction and becomes a detent. For this reason, the allowable rotational torque can be increased as compared with the configuration in which the concave portion 5 is provided.
  • the portion of the shaft 3a that has entered the recess 6 due to plastic deformation and the side wall of the recess 6 are in contact with each other.
  • the applied side pressure per unit area can be reduced. Thereby, the allowable lateral pressure can be increased as compared with the conventional caulking structure.
  • the portion where the opening peripheral edge of the through hole 2b and the caulking portion 4 are in contact regulates the movement of the shaft 3a in the pulling direction, so that the conventional caulking structure is achieved. In comparison, the allowable pulling force can be increased.
  • the through hole 2b has three or more inner wall surfaces with which the outer periphery of the shaft 3a contacts.
  • the center of the shaft 3a is determined by the inner wall surface of the through hole 2b, the accuracy of the shaft center can be improved.
  • 7A to 7C show the case where the through hole 2b is a regular hexagon, it may be a triangle, a quadrangle, a pentagon, or a heptagon or more. In other words, it may be a polygon having three or more inner wall surfaces with which the outer peripheral portion of the shaft 3a contacts.
  • the recess 5 is provided only in one hexagonal side of the through hole 2b as shown in FIG. 8A. May be provided (Example 3). Even if comprised in this way, a permissible rotational torque, permissible side pressure, and permissible extraction force can be raised. In addition, even if it provides the recessed part 6 instead of the recessed part 5 in the structure shown to FIG. 8A, the effect similar to the above can be acquired.
  • the recesses 5 may be provided on all of the hexagonal sides of the through-hole 2b (Example 4). Even if comprised in this way, a permissible rotational torque, permissible side pressure, and permissible extraction force can be raised. In addition, even if it provides the recessed part 6 instead of the recessed part 5 in the structure shown to FIG. 8B, the effect similar to the above can be acquired.
  • a plurality of recesses 5 may be provided on one side of the hexagon of the through hole 2b (Example 5). Even if comprised in this way, a permissible rotational torque, permissible side pressure, and permissible extraction force can be raised. In addition, even if it provides the recessed part 6 instead of the recessed part 5 in the structure shown to FIG. 8C, the effect similar to the above can be acquired.
  • the recess 5 is provided in each of two sides of the three sides that are not adjacent to each other in the hexagon of the through hole 2b, and the recess 6 is provided in the remaining sides. Even if comprised in this way, a permissible rotational torque, permissible side pressure, and permissible extraction force can be raised.
  • both the recessed part 5 and the recessed part 6 are provided with respect to one side part in the hexagon of the through-hole 2b. Even if comprised in this way, a permissible rotational torque, permissible side pressure, and permissible extraction force can be raised.
  • the target to which the member 2 is assembled is the member 3, but the target to which the member 2 is assembled may be only the shaft 3a. That is, the caulking structure according to the first embodiment can be applied even when caulking is performed on both ends of the shaft 3a.
  • the caulking structure according to Embodiment 1 is intermittent along the member 2 having the polygonal through hole 2b, the shaft 3a fixed to the member 2 by caulking, and the opening peripheral edge of the through hole 2b.
  • the recessed part 5 (or recessed part 6) provided in this way is provided.
  • the recessed portion 5 is a recessed portion in which the inner wall surface of the through hole 2b is recessed from the opening peripheral portion to the middle of the side where the shaft 3a is caulked.
  • the recessed part 6 is a recessed part in which the inner wall face of the through-hole 2b was recessed from the opening peripheral part to the opening peripheral part on the opposite side.
  • the recess 5 (or the recess 6) is provided in one or more sides of the polygon in the opening peripheral edge of the through hole 2b.
  • the plastically deformed shaft 3a is in a state of pressing the inner wall surface of the through hole 2b and in contact with the inner peripheral portion of the recess 5 (or the recess 6). Thereby, the allowable side pressure and the allowable pulling force can be increased.
  • the through hole 2b has three or more inner wall surfaces with which the outer peripheral portion of the shaft 3a contacts.
  • the caulking assembly 1 according to the first embodiment includes the caulking structure according to the first embodiment, it is possible to provide the caulking assembly 1 that can obtain the above-described effect.
  • the shaft 3a is passed through the through hole 2b in the member 2 having the polygonal through hole 2b and the concave portion 5 (or 6), and the concave portion 5 (or 6) is provided.
  • the shaft 3a is fixed to the member 2 by caulking the shaft 3a on the side. Thereby, the caulking assembly 1 which can acquire the said effect can be provided.
  • any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.
  • the caulking structure according to the present invention can increase the allowable side pressure and the allowable pulling force, it is suitable for, for example, assembling a chassis of an in-vehicle device in which vibrations in various directions are applied by the movement of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Insertion Pins And Rivets (AREA)
  • Connection Of Plates (AREA)

Abstract

Cette structure d'agrafage comprend : un élément (2) ayant un trou traversant polygonal (2b) ; un arbre (3a) passant à travers le trou traversant (2b) et fixé à l'élément (2) par agrafage ; et un ou plusieurs évidements (5) disposés de façon intermittente le long du bord périphérique d'une ouverture du trou traversant (2b).
PCT/JP2016/081284 2016-10-21 2016-10-21 Structure d'agrafage, produit assemblé formé par agrafage et procédé d'agrafage WO2018073958A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2016/081284 WO2018073958A1 (fr) 2016-10-21 2016-10-21 Structure d'agrafage, produit assemblé formé par agrafage et procédé d'agrafage
JP2018546123A JP6745893B2 (ja) 2016-10-21 2016-10-21 かしめ構造、かしめ組み付け品およびかしめ方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2016/081284 WO2018073958A1 (fr) 2016-10-21 2016-10-21 Structure d'agrafage, produit assemblé formé par agrafage et procédé d'agrafage

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WO2018073958A1 true WO2018073958A1 (fr) 2018-04-26

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476477A (en) * 1977-11-30 1979-06-19 Matsushita Electric Works Ltd Calking method
JPH04105727A (ja) * 1990-08-24 1992-04-07 Delta Kogyo Co Ltd 軸体の固定構造および固定方法
JP2000033442A (ja) * 1998-07-22 2000-02-02 Ichikoh Ind Ltd 部品の取付構造
JP2002248531A (ja) * 2001-02-23 2002-09-03 Canon Inc かしめ方法、かしめ構造、シャーシ、記録装置およびインクジェット記録装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52153867A (en) * 1976-06-17 1977-12-21 Nippon Denso Co Method of fabricating rotor for use in flyy wheel magnet
JP2543827B2 (ja) * 1994-03-17 1996-10-16 日本イスエード株式会社 プ―リ―板へのボスの取付け方法
JP2004188484A (ja) * 2002-12-13 2004-07-08 Nakamura Mfg Co Ltd 薄板への小径ピンの固着方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5476477A (en) * 1977-11-30 1979-06-19 Matsushita Electric Works Ltd Calking method
JPH04105727A (ja) * 1990-08-24 1992-04-07 Delta Kogyo Co Ltd 軸体の固定構造および固定方法
JP2000033442A (ja) * 1998-07-22 2000-02-02 Ichikoh Ind Ltd 部品の取付構造
JP2002248531A (ja) * 2001-02-23 2002-09-03 Canon Inc かしめ方法、かしめ構造、シャーシ、記録装置およびインクジェット記録装置

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JPWO2018073958A1 (ja) 2018-12-27
JP6745893B2 (ja) 2020-08-26

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