WO2015008879A1 - 볼 조인트 및 그 제조방법 - Google Patents
볼 조인트 및 그 제조방법 Download PDFInfo
- Publication number
- WO2015008879A1 WO2015008879A1 PCT/KR2013/006374 KR2013006374W WO2015008879A1 WO 2015008879 A1 WO2015008879 A1 WO 2015008879A1 KR 2013006374 W KR2013006374 W KR 2013006374W WO 2015008879 A1 WO2015008879 A1 WO 2015008879A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ball
- shoe
- cap
- socket
- ball joint
- Prior art date
- Legal status (The legal status 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 status listed.)
- Ceased
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Classifications
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0685—Manufacture of ball-joints and parts thereof, e.g. assembly of ball-joints
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
- F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
- F16C11/0623—Construction or details of the socket member
- F16C11/0642—Special features of the plug or cover on the blind end of the socket
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2220/00—Shaping
- F16C2220/02—Shaping by casting
- F16C2220/06—Shaping by casting in situ casting or moulding
Definitions
- the present invention relates to a ball joint and a method of manufacturing the same, and more particularly, to a ball joint and a method of manufacturing the same by a simple manufacturing process by molding the ball sheet by injection molding.
- Ball joints are widely used as joint means having the function of spherical joints.
- 1 is a cross-sectional view showing the configuration of a conventional ball joint.
- a ball joint generally surrounds a ball stud 10 serving as a joint, protects the ball stud 10, and protects the ball stud 10 and the ball stud 10.
- the ball joint is sealed by employing the plug 30 at the bottom of the socket 40 as well as the dust cover 60 so that foreign matter does not enter around the ball stud 10 seated in the socket 40.
- the separately processed ball stud 10 is assembled to the ball seat 20, and the ball stud 10 and the ball seat 20 assembled as described above are inserted into the socket 40. Plug the lower opening of the socket 40 with a plug 30 and then caulking the lower end of the socket 40 so that the ball stud 10 and the ball seat 20 and the plug 30 are inside the socket 40. Insert into and join.
- the ball stud 10 having only the spherical surface should be applied without the aspheric surface to smoothly rotate the ball stud 10 after manufacturing the ball joint.
- Fig. 2 (a) shows a ball stud processed by machining
- Fig. 2 (b) shows a ball stud manufactured by welding.
- the ball stud 10 is composed of a stud portion 12 and the shoe portion 13, the shoe portion 13 is made of only a spherical surface (sphere) in contact with the ball seat have.
- the shoe 13 is formed into a spherical surface by machining.
- a protrusion is formed at the center of the lower end of the shoe 13 to form a vertex 13a.
- the welding is performed by welding the welded portion 12a of the stud portion 12 and the welded portion 13b of the shoe portion 13 processed into a spherical surface to each other.
- the stud portion 12 and the shoe portion 13 are welded and joined as described above, when the shear load acts on the welded portion, there is a problem that a crack occurs in the welded portion due to the shearing action. Only available for some products with low loads.
- the dust cover 60 is coupled to the upper end of the socket 40.
- the socket 40 has to be formed by a separate process to form a grooved dust cover coupling part in the socket 40. There is a problem in that a large number of processes are required for the processing.
- the present invention has been made to solve the above-mentioned problems, and to provide a ball joint and a method of manufacturing the same by improving the productivity by simplifying the manufacturing process by injection molding the ball sheet to the ball stud having a shoe. There is a purpose.
- the ball stud 100 is provided with a shoe (110); A ball seat 200 surrounding the outer circumferential surface of the shoe part 110 to allow the ball stud 100 to flow within an operating angle range; A cap 300 covering the shoe part 110 to form a closed space between the shoe part 110 and an outer circumferential surface thereof;
- the shoe part 110, the ball seat 200, and the cap 300 may include a socket 400 inserted into an internal space.
- An aspherical surface 111 may be formed in the shoe part 110, and the cap 300 may be formed to cover the aspherical surface 111.
- the closed space may be formed by an upper groove formed on the top surface of the cap 300 and the aspherical surface 111.
- the shoe portion 110 is made of a spherical surface, the hermetic space may be made of a space between the upper groove having a curvature greater than the shoe portion 110 on the upper surface of the cap (300).
- the upper groove may include a first upper groove 300a having the same curvature as the shoe part 110 and a second upper groove 300b having a curvature greater than that of the shoe part 110.
- the socket 400 may be formed with an inlet 410 for injection molding the ball sheet 200.
- a cap seating portion 420 may be formed on the inner circumferential surface of the socket 400 in which the inlet 410 is formed so that the cap 300 is seated.
- the outer circumferential surface 301 of the cap 300 may be formed to communicate with the inlet 410 to form a flow passage 310 in which a solution flows during injection molding of the ball sheet 200.
- the flow passage 310 is formed around the inlet groove 311 and the inlet groove 311 formed in the bottom surface 304 of the cap 300 to be adjacent to the inlet 410 and the ball seat ( In the injection molding of 200, the diffusion passage 312 may be formed to communicate with the cavity, which is a space between the outer circumferential surface of the shoe part 110 and the inner circumferential surface of the socket 400.
- Connection passages 313 connecting between the diffusion passages 312 may be formed.
- the ball seat 200 may be composed of a seat portion 210 surrounding the shoe portion 110 and a cover coupling portion 220 connected to the seat portion 210 to which the dust cover is coupled.
- the cover coupling portion 220 is formed to surround the outer peripheral surface of the end of the socket 400, the coupling groove 221 to which the dust cover is coupled may be formed.
- one end of the ball stud 100 having the shoe part 110 and the outer circumferential surface of the shoe part 110 may be wrapped and the ball stud 100 may flow within an operating angle range.
- a) the shoe unit 110 The cap part 300 is positioned to cover the cap 300 so as to form a closed space therebetween, and the cavity portion formed between the outer circumferential surface of the shoe part 110 and the inner circumferential surface of the socket 400 is located in the ball seat.
- the manufacturing process of the ball joint can be simplified, the cost can be reduced, and the productivity can be improved.
- FIG. 1 is a cross-sectional view showing the configuration of a conventional ball joint
- FIG. 2 (a) is a view showing a ball stud processed by machining
- FIG. 3 is a cross-sectional view showing a ball joint of the present invention
- FIG. 4 is a cross-sectional view showing a socket of the present invention.
- FIG. 5 is a view showing a cap of the present invention
- FIG. 6 is a view showing a process of manufacturing a ball joint of the present invention
- Figure 7 is a perspective view showing the appearance of the ball sheet manufactured by the present invention.
- FIG. 8 is a view showing a cap according to another embodiment of the present invention.
- FIG. 9 is a view showing a state in which the cap is covered with the shoe portion of the spherical surface in the ball joint according to another embodiment of the present invention.
- FIG 3 is a cross-sectional view showing a ball joint of the present invention
- Figure 4 is a cross-sectional view showing a socket of the present invention.
- the ball stud 100 is provided with a shoe part 110, the aspherical surface 111 is formed at one end, the ball stud 100 is wrapped around the outer circumferential surface of the shoe part 110 operating range Cap 300 to cover the upper surface of the aspherical surface 111 to form a closed space between the ball seat 200 and the aspherical surface 111 of the shoe portion 110 to flow in the inside, the shoe portion ( 110 and the ball seat 200 and the cap 300 is made to include a socket 400 is inserted into the interior space.
- the ball stud 100 is composed of an oral portion 110 and a stud portion 120 formed at one end of the aspherical surface, and the aspherical surface 111 is a portion processed into a planar shape of the aspherical surface 111 Since the contact area with the ball seat 200 varies according to the size, it is possible to adjust the torque according to the contact with the ball seat 200 by appropriately setting the size of the aspherical surface 111.
- the ball sheet 200 is formed by injection molding, and fixes the ball stud 100, the cap 300, and the socket 400 at a predetermined position, and a cavity in which the ball sheet 200 is to be molded. Forming and injection molding by melting the synthetic resin melted in the cavity, it is possible to manufacture a ball joint by a simple manufacturing process.
- the ball seat 200 includes a seat portion 210 surrounding the shoe portion 110 and a cover coupling portion 220 connected to the seat portion 210 to which the dust cover 60 is coupled.
- the seat portion 210 is made of a spherical surface so that the shoe portion 110 can rotate in its inner peripheral surface.
- the cover coupling portion 220 is formed to surround the outer peripheral surface of the upper end portion 430 of the socket 400, the coupling groove 221 is formed is coupled to the dust cover. In this way, since the cover coupling portion 220 is integrally formed on the ball seat 200 by injection molding, there is no need to separately process the cover coupling portion in the socket, thereby simplifying the manufacturing process.
- connection part 240 is formed to fill the flow path 310 is formed.
- the connection part 240 includes a first connection part 241 formed at an inclined portion of the diffusion passage 312 and a second connection part 242 formed upward from an end of the first connection part 241.
- the protruding portion 230 and the connecting portion 240 are portions that are not in contact with the shoe portion 110 of the ball stud 100, and are formed by a path through which a synthetic resin solution flows during injection molding of the ball sheet 200. .
- the cap 300 is to form a closed space (A) by covering the aspherical surface 111 of the shoe part 110 of the ball stud 100 during the injection molding, for example, a synthetic resin material may be used but other materials than the synthetic resin It is also possible to use. In this case, if the size of the aspherical surface 111 is adjusted, an area in which the outer circumferential surface of the shoe 110 is in contact with the inner circumferential surface of the seat 210 may be adjusted to set an appropriate torque.
- the socket 400 has a body 400a surrounding an inner space in which the ball seat 200 and the shoe part 110 are located, and is formed at the lower end of the body 400a to injection molding the ball seat 200.
- the molten synthetic resin is introduced into the inlet 410, and formed on the upper side of the inlet 410 consists of a cap seating portion 420, the cap 300 is seated.
- Figure 5 is a view showing a cap of the present invention
- Figure 5 (a) is a perspective view
- Figure 5 (b) is a front view
- Figure 5 (c) is a top view
- Figure 5 (d) is a bottom view.
- the cap 300 of the present invention forms a sealed space A between the aspherical surface 111 of the shoe part 110 of the ball stud 100 so that the synthetic resin solution is injected into the sealed space A during injection molding. It is to prevent inflow.
- the cap 300, the upper groove (300a, 300b) is formed to be concave in the upper surface 301 facing the aspherical surface 111 to form the closed space (A), the outer surface
- the flow path 310 which is a flow path through which the synthetic resin solution flows during injection molding, is formed at the 302, the inclined surface 303, and the bottom surface 304.
- the upper grooves 300a and 300b have a first upper groove 300a having the same curvature as the spherical portion of the shoe 110 and a second upper groove 300b having a curvature greater than that of the shoe portion 110.
- the closed space (A) consists of a space between the aspherical surface 111 and the second upper groove (300b).
- the flow passage 310 is formed to communicate with the inlet 410 of the socket 400 in the shape of the bottom 304 is fine, the inlet grooves 311 and the inlet grooves 311 into which the synthetic resin solution is introduced.
- a flow path is formed to include a diffusion flow path 312 formed to communicate with the cavity which is a space between the outer peripheral surface of the shoe portion 110 and the inner peripheral surface of the socket 400 during the injection molding of the ball seat 200.
- the synthetic resin solution introduced into the inlet 410 of the socket 400 during the injection molding flows into the inlet groove 311 and then uniformly flows along the diffusion passage 312 so that the synthetic resin uniformly in the cavity.
- the solution is filled.
- the outer surface 302, the inclined surface 303, and the bottom surface 304 are in the cap seating portion 420 of the socket 400.
- the inlet 410 and the cavity of the socket 400 communicates with the flow passage 310.
- Figure 6 is a view showing a process of manufacturing the ball joint of the present invention
- Figure 7 is a perspective view showing the appearance of the ball sheet manufactured by the present invention.
- a ball stud 100 having a shoe part 110 having an aspherical surface 111 formed thereon is prepared, and the aspherical surface 111 is formed to form a closed space A between the aspherical surface 111.
- the cap 300 is positioned to cover, and the socket 400 is positioned so that the cavity B forming the ball seat 200 is formed between the shoe 110 and the outer circumferential surface thereof. In this case, the cap 300 is positioned on the cap seating portion 420 of the socket 400.
- the mold 500 covering the cavity B is positioned to shape the ball sheet 200.
- FIG. 8 is a view showing a cap according to another embodiment of the present invention.
- connection passages 313 which connect neighboring diffusion passages 312 to each other are provided.
- the synthetic resin solution flows from the inflow groove 311 into the diffusion passage 312, and a part of the solution flowing through the diffusion passage 312 flows into the connection passage 313 to allow the body of the ball seat 200 to flow. To form part.
- the synthetic resin solution may be introduced into the cavity A evenly during injection molding.
- FIG. 9 is a view showing a state in which the cap is covered in the shoe of the spherical surface in the ball joint according to another embodiment of the present invention.
- 3 to 8 illustrate an embodiment of a ball joint in which an aspherical surface is formed, but in the present embodiment, the shoe is made of only a spherical surface.
- the upper groove formed on the upper surface of the cap 300 is a first upper groove 300a having the same curvature as the shoe portion 110 and a second upper groove 300b having a curvature greater than that of the shoe portion 110. It is made, and forms a closed space between the second upper groove (300b) and the outer peripheral surface of the shoe (110).
- the present invention relates to a ball joint including a ball sheet and a method for manufacturing the same.
- Industrial application of the present invention is to simplify the manufacturing process and improve productivity by injection molding the ball sheet to a ball stud having a shoe.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
Description
Claims (13)
- 구두부(110)가 구비된 볼 스터드(100);상기 구두부(110)의 외주면을 감싸며 상기 볼 스터드(100)가 작동각 범위 내에서 유동할 수 있도록 하는 볼 시트(200);상기 구두부(110)의 외주면과의 사이에 밀폐공간을 형성하도록 상기 구두부(110)를 덮는 캡(300);상기 구두부(110)와 볼 시트(200) 및 캡(300)이 내부 공간에 삽입되는 소켓(400)을 포함하여 이루어진 볼 조인트.
- 제1항에 있어서,상기 구두부(110)에는 비구면(111)이 형성되고, 상기 캡(300)은 상기 비구면(111)을 덮도록 형성된 것을 특징으로 하는 볼 조인트.
- 제2항에 있어서,상기 밀폐공간은 상기 캡(300)의 상면에 형성된 상부홈과 상기 비구면(111)에 의해 형성되는 것을 특징으로 하는 볼 조인트.
- 제1항에 있어서,상기 구두부(110)는 구면으로 이루어지고, 상기 밀페공간은 상기 캡(300)의 상면에 상기 구두부(110)보다 큰 곡률을 갖는 상부홈과의 사이 공간으로 이루어진 것을 특징으로 하는 볼 조인트.
- 제4항에 있어서,상기 상부홈은 상기 구두부(110)와 동일한 곡률을 갖는 제1상부홈(300a)과 상기 구두부(110)보다 큰 곡률을 갖는 제2상부홈(300b)으로 이루어진 것을 특징으로 하는 볼 조인트.
- 제1항에 있어서,상기 소켓(400)에는 상기 볼 시트(200)를 사출 성형하기 위한 유입구(410)가 형성된 것을 특징으로 하는 볼 조인트.
- 제6항에 있어서,상기 유입구(410)가 형성된 소켓(400)의 내주면에는 상기 캡(300)이 안착되도록 캡안착부(420)가 형성된 것을 특징으로 하는 볼 조인트.
- 제6항에 있어서,상기 캡(300)의 외주면(301)에는 상기 유입구(410)와 연통하도록 형성되어 상기 볼 시트(200) 사출 성형시 용액이 유동하는 유동유로(310)가 형성된 것을 특징으로 하는 볼 조인트.
- 제8항에 있어서,상기 유동유로(310)는, 상기 유입구(410)에 인접하도록 상기 캡(300)의 저면(304)에 형성된 유입홈(311)과, 상기 유입홈(311)을 중심으로 형성되어 상기 볼 시트(200)의 사출 성형시 상기 구두부(110)의 외주면과 상기 소켓(400)의 내주면과의 사이 공간인 공동부에 연통하도록 형성된 확산유로(312)로 이루어진 것을 특징으로 하는 볼 조인트.
- 제9항에 있어서,상기 확산유로(312) 사이를 연결하는 연결유로(313)가 형성된 것을 특징으로 하는 볼 조인트.
- 제1항에 있어서,상기 볼 시트(200)는, 상기 구두부(110)를 감싸는 시트부(210)와, 상기 시트부(210)에 연결형성되어 더스트커버가 결합되는 커버결합부(220)로 이루어진 것을 특징으로 하는 볼 조인트
- 제11항에 있어서,상기 커버결합부(220)는 상기 소켓(400)의 끝단부 외주면을 둘러싸도록 형성되되, 상기 더스트커버가 결합되는 결합홈(221)이 형성된 것을 특징으로 하는 볼 조인트.
- 일단에 구두부(110)가 구비된 볼 스터드(100)와 상기 구두부(110)의 외주면을 감싸며 상기 볼 스터드(100)가 작동각 범위 내에서 유동할 수 있도록 하는 볼 시트(200) 및 상기 구두부(110)와 볼 시트(200)가 내부 공간에 삽입되는 소켓(400)이 구비된 볼 조인트를 제조하는 방법에 있어서,a) 상기 구두부(110)와의 사이에 밀폐공간을 형성하도록 상기 구두부(110)를 캡(300)이 덮도록 위치시키되, 상기 구두부(110) 외주면과 상기 소켓(400) 내주면과의 사이에 형성된 공동부가 상기 볼 시트(200)의 형상이 되도록 상기 볼 스터드(100)를 위치시키는 단계;b) 상기 볼 시트(200)의 형상이 성형되도록 상기 공동부를 덮는 금형을 위치시키는 단계;c) 상기 공동부에 합성수지 용액을 유입시켜 볼 시트(200)를 성형하는 단계;를 포함하는 볼 조인트 제조방법.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/903,946 US10066661B2 (en) | 2013-07-17 | 2013-07-17 | Ball joint and method for manufacturing same |
| PCT/KR2013/006374 WO2015008879A1 (ko) | 2013-07-17 | 2013-07-17 | 볼 조인트 및 그 제조방법 |
| MX2016000563A MX368303B (es) | 2013-07-17 | 2013-07-17 | Articulación esferica y método para fabricación de la misma. |
| CN201380078321.7A CN105378305B (zh) | 2013-07-17 | 2013-07-17 | 球形接头及其制造方法 |
| JP2016527901A JP6171099B2 (ja) | 2013-07-17 | 2013-07-17 | ボールジョイント |
| EP13889731.9A EP3023652B1 (en) | 2013-07-17 | 2013-07-17 | Ball joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2013/006374 WO2015008879A1 (ko) | 2013-07-17 | 2013-07-17 | 볼 조인트 및 그 제조방법 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2015008879A1 true WO2015008879A1 (ko) | 2015-01-22 |
Family
ID=52346315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2013/006374 Ceased WO2015008879A1 (ko) | 2013-07-17 | 2013-07-17 | 볼 조인트 및 그 제조방법 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10066661B2 (ko) |
| EP (1) | EP3023652B1 (ko) |
| JP (1) | JP6171099B2 (ko) |
| CN (1) | CN105378305B (ko) |
| MX (1) | MX368303B (ko) |
| WO (1) | WO2015008879A1 (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101814612B1 (ko) * | 2016-01-18 | 2018-01-04 | 주식회사 일진 | 볼 조인트 및 그 제작 방법 |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101715702B1 (ko) * | 2016-09-23 | 2017-03-13 | 주식회사 센트랄 | 소켓 방수를 위한 씰런트 기밀구조를 가지는 볼조인트 |
| KR101934876B1 (ko) * | 2016-11-11 | 2019-04-05 | 주식회사 일진 | 볼 조인트 |
| US10711830B2 (en) | 2017-03-01 | 2020-07-14 | Federal-Mogul Motorparts Llc | Socket assembly |
| DE102017203540A1 (de) | 2017-03-03 | 2018-09-06 | Zf Friedrichshafen Ag | Einleger für ein Kugelgelenk in einem Kraftfahrzeug, Kugelgelenk oder Lenker mit einem solchen Einleger und Verfahren zum Herstellen eines solchen Einlegers, eines solchen Kugelgelenks oder eines solchen Lenkers |
| DE102017206706B4 (de) * | 2017-04-20 | 2019-03-14 | Zf Friedrichshafen Ag | Verfahren zur Herstellung eines Kugelgelenks |
| DE102017108982B4 (de) * | 2017-04-26 | 2024-02-15 | Benteler Automobiltechnik Gmbh | Radlenker mit einem Kugelgelenk |
| EP3669092B1 (en) | 2017-08-16 | 2022-06-22 | Multimatic, Inc. | Ball joint with injection molded bearing |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105378305B (zh) | 2018-05-11 |
| MX2016000563A (es) | 2016-08-11 |
| US20160160907A1 (en) | 2016-06-09 |
| JP6171099B2 (ja) | 2017-07-26 |
| MX368303B (es) | 2019-09-27 |
| US10066661B2 (en) | 2018-09-04 |
| EP3023652A1 (en) | 2016-05-25 |
| JP2016525199A (ja) | 2016-08-22 |
| EP3023652B1 (en) | 2018-12-26 |
| EP3023652A4 (en) | 2017-03-08 |
| CN105378305A (zh) | 2016-03-02 |
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