WO2012159833A1 - SCHWEIßBOLZEN AUFWEISEND EINEN VARIABLEN, KOPFSEITIGEN FUNKTIONSBEREICH - Google Patents
SCHWEIßBOLZEN AUFWEISEND EINEN VARIABLEN, KOPFSEITIGEN FUNKTIONSBEREICH Download PDFInfo
- Publication number
- WO2012159833A1 WO2012159833A1 PCT/EP2012/057424 EP2012057424W WO2012159833A1 WO 2012159833 A1 WO2012159833 A1 WO 2012159833A1 EP 2012057424 W EP2012057424 W EP 2012057424W WO 2012159833 A1 WO2012159833 A1 WO 2012159833A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- welding
- weld
- functional area
- stud
- element according
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/20—Stud welding
- B23K9/207—Features related to studs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/002—Resistance welding; Severing by resistance heating specially adapted for particular articles or work
- B23K11/004—Welding of a small piece to a large or broad piece
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/02—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape
- B23K35/0255—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by mechanical features, e.g. shape for use in welding
- B23K35/0288—Welding studs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/47—Molded joint
- Y10T403/477—Fusion bond, e.g., weld, etc.
Definitions
- the present invention relates to a weld-on element which has a weld-on end and a functional region arranged at a distance therefrom.
- Ansch takeiga can, for example, in the so-called arc welding process on counterparts, such as sheets are welded butt-like, so that the welding elements protrude with their functional range of the counterparts and so can hold various components or components.
- the weld-on elements can be placed with their welding end blunt on a body panel or the like, be 29scroid with this and executed in its functional area so that many opportunities are given to hold different components or components.
- the functional section of each weld-on element is variable in this case, that is designed to be corresponding to the respective component to be held.
- the functional area can also be used to hold cladding.
- the functional area is versatile executable.
- arc welding process a so-called Hubzün Plantsch welding process, as z. B. in DE 199 25 628 A1, are applied.
- WELDFAST® welding process in which weld-on elements, that is to say so-called WELDFAST® holders, are welded to a metal sheet by means of arc welding.
- the WELDFAST® holders have the welding end and the functional area.
- a disadvantage of the WELDFAST® holders is to be considered that they are designed to be elongated at their welding ends, so that a quasi long extending weld edge is formed.
- it is therefore necessary to use a special welding apparatus which is designed in such a way that that the oblong welding edge is securely welded.
- the welded-on weld-on element is welded with welding defects, so that the required strength parameters can not be achieved, with the weld-on elements possibly not withstanding the test conditions even with required test methods. It is also easy to imagine that the necessary welding parameters vary considerably due to the elongated welding edge, which makes cost-effective production difficult, since the welding parameters should always be set and checked again.
- a welding device adapted to the WELDFAST® method has a clearance-limiting protective gas bell.
- the present invention has the object to provide a welding element with functional section, which is always safe to weld, and which is easier to handle with respect to the welding parameters and is also inexpensive welded.
- a weld-on element which has a weld-on end and a functional region arranged at a distance from it is provided, which has a body arranged between the weld-on end and the functional region, which is embodied as a weld stud.
- the welding stud is a body made of a weldable material, preferably of a weldable metal, which body may have at its welding end a flange-like extension, which projects beyond a bolt shank in the radial direction, and which stud shank has a head area opposite the weld-on end.
- the functional area is arranged on the head area of the bolt shank.
- the welding stud is designed as a solid body, so that this with its weld-on, compared to a Aufsetzkantensch conductedung safely with a counterpart, ie z. B. is welded to a body panel. It is also conceivable, however, to design the body, that is to say the welding stud, as a hollow body which is closed at its weld-on end.
- the aim is that the effective welding surface is reduced according to the invention with respect to the elongated, partially executed with changes in direction welding edge.
- the body so the welding stud is made flat at its welding end.
- the welding end can have a firing tip.
- it can be provided to make the weld-on end of the body, that is to say the weld stud, cut in a quasi-mushroom-like manner, the weld-on end being circular in section, whereby the effective weld area is advantageously reduced in relation to an edge weld.
- the base material ie the counterpart to which the welding element is welded
- the base material is acted upon only with such a heat action that, if sufficient penetration is achieved, a harmful burning through, for example, of a welding edge by the relatively thin base material (metal sheet) can be avoided.
- inert gas which has been found in trial welds
- the welded joints have met the test requirements, but also the requirements laid down in various standards.
- This has a beneficial effect, as can be dispensed with a protective gas bell, which protective gas bell increases a necessary for the welding process to be kept free space. is no protective gas bell required, a component designer has much more freedom of design, since the space to be kept free for the welding process is reduced.
- the welding element according to the invention is easier to handle with its weld-on end, based on an oblong welded edge, which may also have bends or changes in direction, in particular because hitherto a special welding device was to be used, which is connected to the specially designed weld-on element was adapted in its elongated configuration of the welding end.
- the functional area is arranged on the head area of the body.
- the functional area can be connected or connected as a separate component to the head area.
- Conceivable materials for the functional area are z. B. plastics.
- it may be provided to manufacture the functional area and the body, that is to say the welding stud in one piece, so that a special type of connection of the functional area to the body, that is to say to the welding stud, can be dispensed with.
- a particularly favorable embodiment can be provided to produce the welding element according to the invention of a base material, for. B. punched out of a metal strip, so that a one-piece stamped part is formed with weld-on, welding stud and functional area.
- the stamped part could then be further processed to obtain a desired shape of the welding stud and a desired configuration of the functional area. It is also conceivable, however, to form the weld-on element from individual rods or from rod material, wherein the body, that is to say the welding bolt, but also the functional area can be machined in accordance with the respective, use-advantageous embodiment.
- the body so the welding studs seen in cross section round or square z. B. square, triangular, etc., wherein the welding end z. B. may have the pillows head-like configuration.
- the welding stud projects beyond the preferably flat functional area. It is conceivable, the body, so the welding studs oriented from its welding end to the functional area in its material thickness even up to the material thickness of Functional range to lead, so that virtually a rejuvenating toward the functional area body is formed.
- the welding stud with a section of the same material thickness as the functional area, this section could be led to the welding end, which overstrokes the relevant section with its flange-like extension, the weld-on end - as already mentioned - can be designed like a pillow head ,
- the functional area z. B. to perform with round or angular extent, without limiting the peripheral configuration to those mentioned, wherein the functional area adapted to a variety of uses designed.
- the functional area could have a bore with an internal thread, for. B. to hold other components on the welding element according to the invention by means of screw on the body panel.
- the functional area for holding cables, hoses, lines or the like, without the intention of disclosing operating limits by means of the abovementioned examples. Rather, the functional area to all conceivable and meaningful holding purposes or connection purposes executable.
- the body so the welding stud can be made significantly thicker than the functional area.
- the functional area is machinable so that it has a necessary wall thickness, which is adapted to the respective holding task.
- the functional area can be designed with regard to its material thickness depending on the intended use.
- the body, that is to say the welding stud can be produced detached from the design of the functional area, wherein embodiments can be achieved which are particularly advantageous with regard to weldability.
- the welding stud in particular at its weld-on end, can be enlarged in its welding surface, which can have a positive effect on the welding process.
- the welding element according to the invention can also be welded to thin sheets or the like thin material without the danger of burning is given, as z. B. is observed at elongated welding edges on flat material.
- thin material has a thickness of 0.75 mm or less, and may of course also be somewhat thicker.
- Fig. 2 is a weld-on element in a second embodiment, and its
- Fig. 3 is a welding element in a further embodiment, and its
- Fig. 4 is an enlarged view of the welding end in one
- Fig. 5 is a welding element in a further embodiment in different views.
- FIG. 1 shows a welding element 1, which has a welding end 2, and a functional region 3 arranged at a distance therefrom. Between the welding end 2 and the functional region 3, a body 4 is arranged, which is designed as a welding pin 4.
- the weld-on element 1 can be welded to a counterpart, for example to a car body panel, by means of an arc welding method, wherein a wide variety of components can be held on the functional area 3.
- the body 4 has a quadrangular configuration. It is conceivable, of course, a round design, or a triangular design of the body 4, without the said embodiments should be limiting.
- the welding stud 4 has the same material thickness as the functional area 3.
- the welding end 2 is of circular design, wherein FIG. 1 indicates a pilch-type welding end 2, which can be seen more clearly in FIG.
- the functional region 3 has a polygonal basic body 6 which has a bore 7 with an internal thread 8 in the center.
- the bore 7 with the internal thread 8 can serve to screw a component so.
- other embodiments of the functional area 3 may be provided to hold the most diverse components with the functional area 3.
- the functional area 3 can be embodied so that the most different components can be held or connected directly to or with the functional area (3) without the interposition, for example, of auxiliary elements.
- the functional region 3 extends in FIG. 1 in the plane of the body 4 or of the welding bolt 4. An angled arrangement of the functional region 3 with respect to the welding stud 4 is also conceivable.
- the welding element 1 can be made in one piece.
- FIG. 2 it is indicated that the weld-on element 1 can be punched out of a rectangular sheet-metal strip (FIG. 2, bottom).
- the body 4, that is, the welding stud 4 initially has a polygonal or quadrangular basic body which has been shaped by shaping into a round base body.
- the functional area 3 has just in case a polygonal, or quadrangular Base on which center for the sake of simplicity, only the previously exemplified bore 7 has.
- the welding element 1 is formed from a round bar material.
- the functional region 3 has a round main body with the introduced bore 7.
- the functional region 3 is set at an angle to the welding stud 4.
- the body 4 or the welding stud 4 is designed to be round at its weld-on end 2, wherein the weld stud 4 is oriented in the direction of the functional region 3 in a quasi-wedge-shaped manner to the functional region 3 in a tapering manner.
- the angular configuration of the wedge shown in FIG. 3 it is, of course, also possible to provide a round design.
- FIG 4 shows a preferred embodiment of the welding end 2 in an enlarged view. Visible is a flange-like extension 9, which is followed by the circular section-like configuration, so that quasi a pilskopfartiges welding end 2 is formed, which is arched away from the welding bolt 4 oriented.
- the Ansch doende 2 as indicated in Figure 2 also be executed flat, and / or have a firing tip, which is not shown, wherein the circular segment-like configuration could also be regarded as a rounded firing tip.
- FIG. 5 shows an embodiment of the welding element 1 similar to FIG. 3, in particular with respect to the welding bolt 4.
- the welding stud 4 according to FIG. 5 has an oval-shaped weld-on end 2, wherein the welding stud tapers in the direction of the functional area 3.
- the welding stud does not have to be guided to the material thickness of the functional area 3.
- the edges of the welding bolt 4 project beyond the surface of the functional area 3.
- the recognizable in Figure 5 notch on the functional area has only exemplary character, and should further design options of the functional area 3 z. B. show in terms of weight savings.
- the aim is that the welding end 2 is thicker in relation to the functional area 3, as can be seen in the central representation of FIG.
- the designer of the weld-on element 1 has no limits with regard to the different design, even though only a few exemplary embodiments are described and recognizable in FIGS. 1 to 5.
- the body 4, that is, the welding bolt 4 can in its embodiment detached from the execution of the functional area 3 z. B. with regard to static requirements and / or welding requirements.
- the functional area 3 is detached from it, preferably carried out with regard to the respective application.
- the aim of the invention is that the welding element 1 according to the invention due to the arrangement of the welding bolt 4 between the welding end 2 and the functional area 3 with a simple stud welding method to the corresponding counterpart, so e.g. can be welded to a vehicle body, which can be dispensed with a free space restricting protective gas bell or on a protective gas insert even in the welding process, which was confirmed in trial welds.
- the functional area 3 is in many ways adaptable to the respective holding task.
- a hand-welding element 1 which is easy to handle by the method of stud welding, is provided, which can be welded without complications and at low cost.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Connection Of Plates (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/004,588 US20140064832A1 (en) | 2011-05-23 | 2012-04-24 | Welding stud having a variable, head-side functional region |
| CN201290000512.2U CN203900712U (zh) | 2011-05-23 | 2012-04-24 | 具有可变的端部功能区的焊钉 |
| DE112012002204.1T DE112012002204A5 (de) | 2011-05-23 | 2012-04-24 | Schweißbolzen, aufweisend einen variablen, kopfseitigen Funktionsbereich |
| RU2013152053/02U RU149330U1 (ru) | 2011-05-23 | 2012-04-24 | Приварной элемент с функциональной частью на головке |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011076261.2 | 2011-05-23 | ||
| DE102011076261A DE102011076261A1 (de) | 2011-05-23 | 2011-05-23 | Schweißbolzen aufweisend einen variablen, kopfseitigen Funktionsbereich |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2012159833A1 true WO2012159833A1 (de) | 2012-11-29 |
Family
ID=46001263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/057424 Ceased WO2012159833A1 (de) | 2011-05-23 | 2012-04-24 | SCHWEIßBOLZEN AUFWEISEND EINEN VARIABLEN, KOPFSEITIGEN FUNKTIONSBEREICH |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140064832A1 (de) |
| CN (1) | CN203900712U (de) |
| DE (2) | DE102011076261A1 (de) |
| RU (1) | RU149330U1 (de) |
| WO (1) | WO2012159833A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016007615A (ja) * | 2014-06-23 | 2016-01-18 | 足立 俊雄 | 鈑金用溶着金具および鈑金作業方法 |
| DE102014214932A1 (de) * | 2014-07-30 | 2016-02-04 | Bayerische Motoren Werke Aktiengesellschaft | Schweißbolzen zum Hubzündungsschweißen |
| CN105665544A (zh) * | 2016-03-11 | 2016-06-15 | 宁波思进机械股份有限公司 | 带引弧铝球的焊钉的成型装置 |
| CN111390356B (zh) * | 2020-04-17 | 2021-12-28 | 中船黄埔文冲船舶有限公司 | 一种防滑点制作方法 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE536068A (de) * | ||||
| JPS53102853A (en) * | 1977-02-18 | 1978-09-07 | Gaiichiyaato Touurusu Ltd | Means for spot welding of accessory fittings to car body and its method |
| JPS5467723U (de) * | 1977-10-21 | 1979-05-14 | ||
| JPH0641909U (ja) * | 1992-01-14 | 1994-06-03 | 宏明 安田 | 自動車ボディの凹部引き出し用溶植片 |
| JPH0732042A (ja) * | 1993-02-26 | 1995-02-03 | Toshitaka Sakai | 金属板の面修正装置 |
| US5618491A (en) * | 1996-02-22 | 1997-04-08 | Trw, Inc. | Studs for boilers and other high temperature applications |
| DE19925628A1 (de) | 1999-06-05 | 2000-12-07 | Emhart Inc | Hubzündungsschweißverfahren mit Reinigungsstufe |
| DE102006040215A1 (de) * | 2006-08-28 | 2008-03-06 | GM Global Technology Operations, Inc., Detroit | Befestigungselement zur Verwendung beim elektrischen Blechschweißen |
| WO2008119365A1 (de) * | 2007-04-02 | 2008-10-09 | Hbs Bolzenschweiss-Systeme Gmbh & Co. Kg | Schweissbithalter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2455244A (en) * | 1944-04-04 | 1948-11-30 | Morton Gregory Corp | Stud for welding |
| US2413370A (en) * | 1944-05-24 | 1946-12-31 | Hollup Corp | Welding stud |
| US2638525A (en) * | 1945-10-30 | 1953-05-12 | Nat Cylinder Gas Co | Welding stud and method of arc welding |
| US2453112A (en) * | 1946-02-14 | 1948-11-09 | Bennett George | Clamp |
| US2506747A (en) * | 1946-06-18 | 1950-05-09 | Smith Roger Olof | Device for the end welding of studs |
| US2441257A (en) * | 1946-07-13 | 1948-05-11 | Nat Cylinder Gas Co | Welding stud |
| US2612394A (en) * | 1946-08-19 | 1952-09-30 | Gregory Ind Inc | Welding stud |
| US2885228A (en) * | 1951-06-02 | 1959-05-05 | Ksm Products Inc | Flux-charged arc welding studs |
| US2893762A (en) * | 1953-12-29 | 1959-07-07 | Gregory Ind Inc | Welding stud |
| US2985744A (en) * | 1957-08-07 | 1961-05-23 | Philips Corp | Stud welding |
| US3182173A (en) * | 1962-05-21 | 1965-05-04 | Dash Edward | Welding stud and ferrule construction for arc welding |
| US3506227A (en) * | 1967-11-06 | 1970-04-14 | Trw Inc | Hanger for elongate members |
| GB1386775A (en) * | 1971-02-11 | 1975-03-12 | Molyneux Eng Co Ltd | Welded stud connections |
| US3760143A (en) * | 1972-01-03 | 1973-09-18 | Warren Fastener Corp | Welding stud |
| DE3618902A1 (de) * | 1986-04-21 | 1987-12-10 | Tucker Gmbh | Schweissbolzen mit hutmutter |
| US4684304A (en) * | 1986-04-24 | 1987-08-04 | Hitco | Composite stud |
| US5383741A (en) * | 1989-06-09 | 1995-01-24 | Newport News Shipbuilding And Dry Dock Company | End welded stud and supports for wireway hangers |
| CZ231092A3 (en) * | 1991-08-02 | 1993-02-17 | Emhart Inc | Arc welded joint between a carrier and a detail attached fixedly thereto |
| DE9111564U1 (de) * | 1991-09-17 | 1992-01-09 | Emhart Inc., Newark, Del. | Massebolzen |
| DE4200199A1 (de) * | 1992-01-07 | 1993-07-08 | Emhart Inc | Verfahren zum elektrischen verschweissen zweier schweissteile |
| DE4225415A1 (de) * | 1992-07-31 | 1994-02-03 | Emhart Inc | Bolzenschweißvorrichtung |
| US6860687B1 (en) * | 1998-12-08 | 2005-03-01 | Newfrey Llc | Weldable aluminum stud |
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| DE10014078C5 (de) * | 2000-03-22 | 2007-04-05 | Nelson Bolzenschweiß-Technik GmbH & Co. KG | Verfahren zur Herstellung eines Schweißbolzens |
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-
2011
- 2011-05-23 DE DE102011076261A patent/DE102011076261A1/de not_active Withdrawn
-
2012
- 2012-04-24 CN CN201290000512.2U patent/CN203900712U/zh not_active Expired - Fee Related
- 2012-04-24 RU RU2013152053/02U patent/RU149330U1/ru not_active IP Right Cessation
- 2012-04-24 US US14/004,588 patent/US20140064832A1/en not_active Abandoned
- 2012-04-24 DE DE112012002204.1T patent/DE112012002204A5/de not_active Withdrawn
- 2012-04-24 WO PCT/EP2012/057424 patent/WO2012159833A1/de not_active Ceased
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE536068A (de) * | ||||
| JPS53102853A (en) * | 1977-02-18 | 1978-09-07 | Gaiichiyaato Touurusu Ltd | Means for spot welding of accessory fittings to car body and its method |
| JPS5467723U (de) * | 1977-10-21 | 1979-05-14 | ||
| JPH0641909U (ja) * | 1992-01-14 | 1994-06-03 | 宏明 安田 | 自動車ボディの凹部引き出し用溶植片 |
| JPH0732042A (ja) * | 1993-02-26 | 1995-02-03 | Toshitaka Sakai | 金属板の面修正装置 |
| US5618491A (en) * | 1996-02-22 | 1997-04-08 | Trw, Inc. | Studs for boilers and other high temperature applications |
| DE19925628A1 (de) | 1999-06-05 | 2000-12-07 | Emhart Inc | Hubzündungsschweißverfahren mit Reinigungsstufe |
| DE102006040215A1 (de) * | 2006-08-28 | 2008-03-06 | GM Global Technology Operations, Inc., Detroit | Befestigungselement zur Verwendung beim elektrischen Blechschweißen |
| WO2008119365A1 (de) * | 2007-04-02 | 2008-10-09 | Hbs Bolzenschweiss-Systeme Gmbh & Co. Kg | Schweissbithalter |
Also Published As
| Publication number | Publication date |
|---|---|
| RU149330U1 (ru) | 2014-12-27 |
| DE102011076261A1 (de) | 2012-11-29 |
| DE112012002204A5 (de) | 2014-06-05 |
| CN203900712U (zh) | 2014-10-29 |
| US20140064832A1 (en) | 2014-03-06 |
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