KR20170011653A - Fastener, structure for jointting different materials using the same - Google Patents

Fastener, structure for jointting different materials using the same Download PDF

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Publication number
KR20170011653A
KR20170011653A KR1020150104617A KR20150104617A KR20170011653A KR 20170011653 A KR20170011653 A KR 20170011653A KR 1020150104617 A KR1020150104617 A KR 1020150104617A KR 20150104617 A KR20150104617 A KR 20150104617A KR 20170011653 A KR20170011653 A KR 20170011653A
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KR
South Korea
Prior art keywords
base material
fastener
pressing
flange portion
coupling surface
Prior art date
Application number
KR1020150104617A
Other languages
Korean (ko)
Inventor
연홍석
김원건
곽경태
Original Assignee
현대자동차주식회사
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 현대자동차주식회사 filed Critical 현대자동차주식회사
Priority to KR1020150104617A priority Critical patent/KR20170011653A/en
Publication of KR20170011653A publication Critical patent/KR20170011653A/en

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    • 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
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
    • 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
    • F16B33/00—Features common to bolt and nut
    • 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
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/06—Specially-shaped heads
    • 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
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener capable of stably and stably bonding two or more dissimilar base materials and a heterogeneous base material bonding structure using the same.
A fastener according to the present invention is a fastener for joining two or more different kinds of base materials laminated to each other, the body having a coupling surface to be coupled to the other base material through the adjacent one of the two or more different types of base materials; And a flange portion spaced apart from a coupling surface of the body portion, wherein the flange portion presses the one base material toward the other base material as the coupling surface is coupled to the other base material.

Description

[0001] FASTENER, STRUCTURE FOR JOINTING DIFFERENT MATERIALS USING THE SAME [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener, and more particularly, to a fastener capable of firmly and stably bonding two or more dissimilar base materials and a heterogeneous base material bonding structure using the same.

In general, fasteners are a type of mechanical element for joining or affixing two or more parts, and there are various types such as screws, nuts, bolts, rivets, and snap fasteners.

Meanwhile, in order to lighten the weight of the vehicle body, a panel made of different materials, such as a base material of an AL alloy material and a CFRP A heterogeneous panel obtained by bonding a base material of a material, etc.) is widely used.

As described above, welding or rivets are used to join two or more different types of base materials.

First, when two or more different kinds of base materials are welded through welding, there is a disadvantage that the joining thereof is not easy due to the difference in thermal expansion coefficient.

In addition, when two or more different kinds of base materials are bonded through rivets, there is a disadvantage that not only the manufacturing cost is increased due to the high unit price of the rivet but also the weight due to the rivet is increased. In addition, when the rigidity of the portion where the rivet is coupled becomes weak, when the vehicle collides, there is a disadvantage that the tear easily occurs at the portion where the rivet is engaged.

The present invention has been developed to overcome the disadvantages of the related art as described above, and it is an object of the present invention to provide a fastener that can stably and stably bond two or more different kinds of base materials, and a heterogeneous base material bonding structure using the same. .

According to an aspect of the present invention, there is provided a fastener for joining two or more different kinds of base materials,

A body portion having a coupling surface to be coupled to the other base material through the adjacent one of the two or more different parent materials; And

And a flange portion spaced apart from a coupling surface of the body portion,

And the flange portion presses the one base material toward the other base material as the engagement surface is coupled to the other base material.

And the coupling surface is welded to the other base metal.

And the flange portion has a pressing surface for pressing the one base material as the coupling surface is welded to the other base material.

And the pressing face of the flange portion and the engaging face are spaced apart from each other by an interval corresponding to the thickness of the one base material.

And the engaging surface has a molten protrusion which is melted at the time of welding.

And the flange portion has a pressing projection.

And the body portion has a fastening hole formed therein with a female screw portion.

A stud is formed on one side of the body portion, and a male screw portion is formed on an outer circumferential surface of the stud.

Another aspect of the present invention is a heterogeneous base material bonding structure for bonding two or more different kinds of base materials laminated,

At least one first base material on which a through hole is formed;

At least one second base material laminated on the first base material; And

And a fastener coupling the first base material and the second base material,

Wherein the fastener has a body portion through which a coupling surface to be coupled to the second base material passes through the through hole of the first base material and a flange portion spaced apart from the coupling surface,

And the flange portion has a pressing surface for pressing the periphery of the through hole of the first base material as the coupling surface of the fastener is coupled to the second base material.

And the coupling surface of the fastener is welded to the second base material.

And the engaging surface of the fastener and the pressing surface of the flange portion are spaced apart by an interval corresponding to the thickness of the first base material.

Wherein the fastener is a nut having a fastening hole formed with a female screw portion inside thereof.

The fastener may be a bolt having a stud formed with male and female parts and a body part provided at one end of the stud.

According to the present invention, as the engaging surface of the fastener is coupled to the second base material, the flange portion and the second base material can press the first base material in the direction opposite to each other, thereby firmly bonding the first base material and the second base material There are advantages.

According to the present invention, since the first base material and the second base material, which are different kinds of fasteners having threaded portions, are firmly joined to each other, it is possible to easily attach other parts to the threaded portion of the fastener in a state where the different- Therefore, there is an advantage that a more various fastening structure can be effectively implemented.

1 is a view showing a fastener according to a first embodiment of the present invention.
FIG. 2 is a view showing a method of joining a dissimilar base material using a fastener according to a first embodiment of the present invention.
3 is a bottom perspective view showing a bottom surface of the fastener according to the first embodiment of the present invention.
4 is a bottom perspective view showing the modified structure of Fig.
5 is a view showing a fastener according to a second embodiment of the present invention.
6 is a view showing a method of joining dissimilar base materials using the fastener according to the second embodiment of the present invention.
7 is a bottom perspective view showing a bottom surface of the fastener according to the second embodiment of the present invention.
8 is a bottom perspective view showing the modified structure of Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. For the sake of convenience, the size, line thickness, and the like of the components shown in the drawings referenced in the description of the present invention may be exaggerated somewhat. The terms used in the description of the present invention are defined in consideration of the functions of the present invention, and thus may be changed depending on the user, the intention of the operator, customs, and the like. Therefore, the definition of this term should be based on the contents of this specification as a whole.

1 to 4 are views showing a fastener according to a first embodiment of the present invention and a hetero-base material bonding structure using the same.

1 to 4, a fastener 10 according to a first embodiment of the present invention includes bonding means 12 and 13 for bonding laminated dissimilar base materials 1 and 2, Nut.

The fastener 10 according to the first embodiment has a body portion 11 having a female thread portion 15 and the body portion 11 has a nut structure having a fastener having a female thread portion 15 formed therein.

The bonding means 12 and 13 are configured to firmly bond two or more different kinds of base materials 1 and 2 in an opposed manner.

These joining means 12 and 13 include a coupling surface 12 formed on one end surface of the body portion 11 and a flange portion 13 spaced from the coupling surface 12.

The engaging surface 12 is formed on one end face of the body portion 11 and is provided on the other base material 2 after passing through the through hole 1a of the adjacent one of the two different parent materials 1 and 2 Respectively.

The flange portion 13 extends radially outward from the outer circumferential surface of the body portion 11, and in particular, the flange portion 13 is formed so as to be spaced apart from the engagement surface 12.

On the bottom surface of the flange portion 13, a pressing surface 18 for pressing the adjacent base material 1 out of the different base materials 1 and 2 is formed.

Fig. 2 shows a hetero-base material bonding structure obtained by joining different kinds of base materials 1 and 2 using the fastener 10 according to the first embodiment.

As shown in Fig. 2 (a), at least one first base material 1 and at least one second base material 2 are laminated. A through hole 1a is formed in the first base material 1 and a fastening hole 2a having an inner diameter corresponding to the fastener of the fastener 10 is formed in the second base material 2. [

The engaging surface 12 of the fastener 10 is bent in such a direction that one side of the body portion 11 of the fastener 10 passes through the through hole 1a of the first base material 1 as shown in Figure 2 (b) And is coupled to the second base material 2 side. In particular, the mating surface 12 can be very tightly coupled through the weld 12b to the second base material 2. [

The molten protrusions 12a are formed on the engaging surface 12 and the engaging surface 12 and the second engaging surface 12a are formed by melting the molten protrusions 12a when the engaging surface 12 and the second base material 2 are welded. The base material 2 can be welded more firmly.

It is preferable that the distance s between the engaging surface 12 and the pressing surface 18 of the flange portion 13 is formed corresponding to the thickness t of the first base material 1.

As the engaging surface 12 is welded to the second base material 2 as described above, the pressing surface 18 of the flange portion 13 presses the first base material 1 toward the second base material 2 in the first pressing direction The first base material 1 is pressed in the second pressing direction F2 and the second base material 2 is pressed against the first base material 1 in the first pressing direction F1 and the second pressing direction F2, Respectively. In other words, as the engaging surface 12 of the fastener 10 is welded to the second base material 2 after passing through the first base material 1, the pressing surface 18 of the flange portion 13 and the second base material 2 The first base material 1 and the second base material 2 can be bonded very firmly by pressing the first base material 1 in the directions opposite to each other.

As shown in FIGS. 3 and 4, the pressing projections 14 and 16 are formed on the pressing face 18 of the flange portion 13 to further improve the pressing performance.

According to one embodiment, as shown in Fig. 3, a plurality of pressing projections 14 may be arranged circumferentially spaced from the pressing face 18 so that a serration structure may be arranged on the pressing face 18, The pressing surface 18 can be pressed more uniformly around the through hole 1a of the first base material 1 by the pressing projections 14 of the serration structure, The efficiency can be greatly improved. The plurality of compression protrusions 14 are arranged adjacent to the outer edge of the compression surface 18, and the height of each compression protrusion 14 can be approximately 0.1 mm.

According to another embodiment, the pressing projection 16 may have a ring-shaped structure on the pressing face 18 as shown in Fig. The diameter of the ring-shaped compression protrusion 16 may be approximately 16 mm, and the height of the compression protrusion 16 may be approximately 0.1 mm.

As described above, according to the present invention, two or more different kinds of mother materials 1 and 2 are joined together by welding with the coupling surface 12 of the fastener 10 and pressing of the flange portion 13, And other parts can be attached to the female threaded portion 15 of the fastener 10 to which the dissimilar base materials 1 and 2 are bonded through screwing or the like So that various fastening structures can be effectively implemented.

5 to 8 are views showing a fastener according to a second embodiment of the present invention and a hetero-base material bonding structure using the same.

5 to 8, the fastener 20 according to the second embodiment of the present invention includes bonding means 22 and 23 for bonding the laminated different parent materials 1 and 2, Bolts.

Particularly, the fastener 20 according to the second embodiment has the stud 21 having the male threaded portion 25 and the body portion 29 provided on one end face of the stud 21.

The stud 21 has the same length and the same diameter as the studs of a typical bolt, and the male thread 25 is formed on the outer circumferential surface thereof.

The body portion 29 is a portion corresponding to the head portion of the bolt provided at one end of the stud 21 and has a diameter larger than that of the stud 21.

The bonding means 22 and 23 are configured to rigidly bond two or more different kinds of base materials 1 and 2 in an opposed manner.

These joining means 22 and 23 include a coupling surface 22 formed on one end surface of the body portion 29 and a flange portion 23 spaced from the coupling surface 22.

The coupling surface 22 is formed on one end surface of the body portion 29 and is configured to be coupled to the other base material 2 after passing through the adjacent base material 1 out of the two or more different kinds of base materials 1 and 2.

The flange portion 23 extends radially outwardly from the outer circumferential surface between the stud 21 and the body portion 29 and in particular the flange portion 23 is formed so as to be spaced apart from the engagement surface 22 by a predetermined distance s.

On the bottom surface of the flange portion (23), a pressing surface (28) for pressing the adjacent base material (1) out of the different base materials (1, 2) is formed.

Fig. 6 shows a hetero-base material bonding structure obtained by joining different kinds of base materials 1 and 2 using the fastener 20 according to the second embodiment.

As shown in Fig. 6 (a), at least one first base material 1 and at least one second base material 2 are laminated. A through hole (1a) is formed in the first base material (1).

The engaging surface 22 of the fastener 10 is pressed against the first base material 1 as the body 29 of the fastener 20 passes through the through hole 1a of the first base material 1 as shown in Figure 6 (b) 2 is coupled to the base material 2 side. In particular, the mating surface 22 can be very tightly coupled through the weld 22b to the second base material 2.

A fusion surface (not shown) may be formed on the coupling surface 22 similarly to the first embodiment and the molten projections may be melted when the coupling surface 22 and the second base material 2 are welded The joining surface 22 and the second base material 2 can be more firmly welded.

It is preferable that the distance s between the engaging surface 22 and the pressing surface 28 of the flange portion 23 is formed corresponding to the thickness t of the first base material 1.

As the engaging surface 22 is welded to the second base material 2 as described above, the pressing surface 28 of the flange portion 23 presses the first base material 1 toward the second base material 2 in the first pressing direction The first base material 1 is pressed in the second pressing direction F2 and the second base material 2 is pressed against the first base material 1 in the first pressing direction F1 and the second pressing direction F2, Respectively. In other words, as the engaging surface 22 of the fastener 20 is welded to the second base material 2 after passing through the first base material 1, the pressing surface 28 of the flange portion 23 and the second base material 2 The first base material 1 and the second base material 2 can be bonded very firmly by pressing the first base material 1 in the directions opposite to each other.

As shown in Figs. 7 and 8, the pressing projections 24 and 26 are formed on the pressing face 28 of the flange portion 23 to further improve the pressing performance.

According to one embodiment, as shown in Fig. 7, a plurality of pressing projections 24 may be arranged circumferentially spaced from the pressing face 28 so that a serration structure may be arranged on the pressing face 28, The pressing surface 28 can be more uniformly pressed around the through hole 1a of the first base material 1 by the pressing projections 24 of the serration structure, The efficiency can be greatly improved. The plurality of compression protrusions 24 are arranged adjacent to the outer edge of the compression surface 28, and the height of each compression protrusion 24 can be approximately 0.1 mm.

According to another embodiment, the pressing projection 26 may have a ring-shaped structure on the pressing face 28 as shown in FIG. The diameter of the ring-shaped compression protrusion 26 may be approximately 16 mm, and the height of the compression protrusion 26 may be approximately 0.1 mm.

As described above, according to the present invention, two or more different kind of mother materials 1 and 2 are joined by welding with the coupling surface 22 of the fastener 20 and compression of the flange portion 23, It is possible to attach the other parts to the male screw portion 25 of the fastener 20 to which the dissimilar base materials 1 and 2 are bonded by screwing or the like So that various fastening structures can be effectively implemented.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

1: First base material 2: Second base material
10: fastener (nut) of the first embodiment 11:
12: engaging surface 13: flange portion
15: female thread portion 14, 16: crimp projection
20: fastener 21 of the second embodiment: stud
22: coupling surface 23: flange portion
25: Male threads 24, 26:

Claims (13)

A fastener for joining two or more different kinds of different parent materials,
A body portion having a coupling surface to be coupled to the other base material through the adjacent one of the two or more different parent materials; And
And a flange portion spaced apart from a coupling surface of the body portion,
And the flange portion presses the one base material toward the other base material as the engagement surface is coupled to the other base material. The method according to claim 1,
And the engaging surface is welded to the other base material. The method of claim 2,
Wherein the flange portion has a pressing surface for pressing the one base material as the coupling surface is welded to the other base material. The method of claim 3,
Wherein the pressing face of the flange portion and the engaging face are spaced apart by an interval corresponding to the thickness of the one base material. The method according to claim 1,
Wherein the engaging surface has a molten protrusion which is melted at the time of welding. The method according to claim 1,
And the flange portion has a pressing projection. The method according to claim 1,
Wherein the body portion has a fastening hole having a female thread formed therein. The method according to claim 1,
Wherein a stud is formed on one side of the body portion, and a male screw portion is formed on an outer circumferential surface of the stud. At least one first base material on which a through hole is formed;
At least one second base material laminated on the first base material; And
And a fastener coupling the first base material and the second base material,
Wherein the fastener has a body portion through which a coupling surface to be coupled to the second base material passes through the through hole of the first base material and a flange portion spaced apart from the coupling surface,
Wherein the flange portion has a pressing surface for pressing the periphery of the through hole of the first base material as the coupling surface of the fastener is coupled to the second base material. The method of claim 9,
And the coupling surface of the fastener is welded to the second base material. The method of claim 9,
Wherein the engaging surface of the fastener and the pressing surface of the flange portion are spaced apart by an interval corresponding to the thickness of the first base material. The method of claim 9,
Wherein the fastener is a nut having a fastening hole with a female thread formed therein. The method of claim 9,
Wherein the fastener comprises a bolt having a stud formed with a male part and a body part provided at one end of the stud.
KR1020150104617A 2015-07-23 2015-07-23 Fastener, structure for jointting different materials using the same KR20170011653A (en)

Priority Applications (1)

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KR1020150104617A KR20170011653A (en) 2015-07-23 2015-07-23 Fastener, structure for jointting different materials using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150104617A KR20170011653A (en) 2015-07-23 2015-07-23 Fastener, structure for jointting different materials using the same

Publications (1)

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KR20170011653A true KR20170011653A (en) 2017-02-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190081139A (en) * 2017-12-29 2019-07-09 자동차부품연구원 Jointing unit for dissimilar material
EP4140631A4 (en) * 2020-06-25 2023-09-06 Seki Kogyo Co., Ltd. Dissimilar material joint structure and method for joining dissimilar materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190081139A (en) * 2017-12-29 2019-07-09 자동차부품연구원 Jointing unit for dissimilar material
EP4140631A4 (en) * 2020-06-25 2023-09-06 Seki Kogyo Co., Ltd. Dissimilar material joint structure and method for joining dissimilar materials

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