JPH0441098A - Wire for gas shielded arc welding - Google Patents
Wire for gas shielded arc weldingInfo
- Publication number
- JPH0441098A JPH0441098A JP14584790A JP14584790A JPH0441098A JP H0441098 A JPH0441098 A JP H0441098A JP 14584790 A JP14584790 A JP 14584790A JP 14584790 A JP14584790 A JP 14584790A JP H0441098 A JPH0441098 A JP H0441098A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- wire
- molten metal
- blowholes
- arc welding
- 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.)
- Pending
Links
- 238000003466 welding Methods 0.000 title claims abstract description 44
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 4
- 229910052720 vanadium Inorganic materials 0.000 claims description 7
- 229910052726 zirconium Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 19
- 239000002184 metal Substances 0.000 abstract description 19
- 239000007789 gas Substances 0.000 abstract description 16
- 230000015572 biosynthetic process Effects 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000007711 solidification Methods 0.000 abstract 1
- 230000008023 solidification Effects 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 16
- 239000010959 steel Substances 0.000 description 16
- 239000000463 material Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 229910052758 niobium Inorganic materials 0.000 description 5
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000005121 nitriding Methods 0.000 description 3
- 238000007747 plating Methods 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 230000000873 masking effect Effects 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
この発明はガスシールドアーク溶接用ワイヤに関し、特
に高速溶接性に優れ、窒化処理、！！ｉ装。[Detailed Description of the Invention] (Field of Industrial Application) This invention relates to a wire for gas-shielded arc welding, which has particularly excellent high-speed weldability, and is nitrided! ! i-suite.
メツキ等の各種表面処理を施した鋼材等の溶接に好適に
用い得る溶接用ワイヤに関する。The present invention relates to a welding wire that can be suitably used for welding steel materials that have been subjected to various surface treatments such as plating.
（従来の技術及び発明が解決しようとする課題）従来よ
り、鋼材表面に耐摩耗性を付与するなどの目的でこれを
窒化処理することが行われており、また防錆のために、
無機或いは有機亜鉛系の塗料を用いた塗装或いはメツキ
等表面処理を施すことが行われている。(Prior art and problems to be solved by the invention) Conventionally, nitriding has been carried out for the purpose of imparting wear resistance to the surface of steel materials, and for rust prevention.
Surface treatments such as painting or plating using inorganic or organic zinc paints are performed.
ところで、これらの鋼材をソリッドワイヤを用いてガス
シールドアーク溶接した場合、溶接時の熱で窒素ガスが
発生したり、亜鉛蒸気や水素ガス、ＣＯガス等が発生し
、これにより溶接部にブローホールやピット等が生ずる
といった問題があった。特に高速溶接の場合、発生した
ガスが金属溶融部を突き抜けて逃げるための充分な時間
が与えられないため、こうしたブローホールやピットが
より発生し易い。By the way, when these steel materials are gas-shielded arc welded using solid wire, the heat during welding generates nitrogen gas, zinc vapor, hydrogen gas, CO gas, etc., which can cause blowholes in the welded area. There were problems such as the formation of pits and pits. Especially in the case of high-speed welding, such blowholes and pits are more likely to occur because the generated gases are not given sufficient time to penetrate and escape through the molten metal.
これを防止するため１例えば窒化処理鋼材の場合には、
窒化処理の際、後に３いて溶接される個所のみをマスキ
ング材でマスクした状態で窒化処理し、これにより溶接
部分たけ窒化が行われないようにしたり、或いは塗装鋼
材の場合には、溶接部位にある塗料を機械的に削って除
いたり、或いは焼いて飛ばしたりして対処している。To prevent this, 1. For example, in the case of nitrided steel,
During nitriding, only the parts that will be welded later are masked with masking material to prevent nitriding, or in the case of painted steel, the parts to be welded are covered with masking material. The problem is dealt with by mechanically scraping off some paint or burning it away.
しかしなからとのような方法による場合、多大な手間が
かかり、非能率的であるのみならずコストか不必要に高
くなる問題かある。However, using such a method requires a lot of time and effort, and is not only inefficient but also unnecessarily high in cost.
帽１を解決するための手段）
本発明はこのような課題を解決するために開発されたも
のであり、その要旨は、重量基準で、Ｃ≦０．１５％、
Ｓｉ ： ０．５ 〜１．Ｓ ％、Ｍｎ：
１．０ 〜２．５％、 Ｂｉ ： ０．００５〜０．２
０％、残部実質的にＦｅより成るように溶接用ワイヤを
構成したものである。Means for Solving Cap 1) The present invention was developed to solve such problems, and its gist is that C≦0.15% on a weight basis,
Si: 0.5 to 1. S%, Mn:
1.0 to 2.5%, Bi: 0.005 to 0.2
The welding wire is constructed such that the remaining portion is substantially made of Fe.
また本願の第二の発明は、請求項（１）の溶接用ワイヤ
において、更にＮｂ、 Ｖの１種若しくは２種を、それ
ぞれＮｂ： ０．００５ 〜１．２％、 ｖ ： ０．
００５ 〜１．２％の範囲で含有させるようにしたこと
にある。A second invention of the present application is the welding wire according to claim (1), further containing one or both of Nb and V, Nb: 0.005 to 1.2%, v: 0.
The reason is that the content is in the range of 0.005 to 1.2%.
更に本願の第三の発明は、請求項（１） 、 （２）
の溶接用ワイヤにおいて、更にＴｉ 、 Ｚｒ 、 Ａ
ｌの１ｍｓしくは２種以上を、Ｔｉ ： ０．００５〜
０．５％、Ｚｒ＝０、００５〜０．５％、 Ａｌ ：
０．００５〜０．５％の各量範囲で含有させるようにし
たことにある。Furthermore, the third invention of the present application is claimed in claims (1) and (2).
In the welding wire, Ti, Zr, A
1 ms or 2 or more types of l, Ti: 0.005 ~
0.5%, Zr=0, 005~0.5%, Al:
The reason for this is that each content is in the range of 0.005 to 0.5%.
（作用及び発明の効果） 上記のように本願の第一の発明は、Ｃ，Ｓｉ。(Action and effect of invention) As mentioned above, the first invention of the present application is based on C,Si.
ｈの各含有量を特定範囲に調製した上、従来の溶接用ワ
イヤにおいて一般に含有されていないＢｉを所定量範囲
で含有させるようにしたものである。The content of h is adjusted to a specific range, and Bi, which is not generally contained in conventional welding wires, is contained within a predetermined amount range.
かかる本発明のワイヤを用いて溶接した場合、高速溶接
した場合においてもビットやブローホールの発生が抑制
され、健全な溶接金属が得られることが確認されている
。It has been confirmed that when welding is performed using the wire of the present invention, the occurrence of bits and blowholes is suppressed even when welding is performed at high speed, and a sound weld metal is obtained.
本発明においてＢｉは、実験の結果、溶接の際に溶湯の
温度を高めるとともに溶湯の粘度を低下させる働きのあ
ることが確認されている。そしてこのことが、溶接の際
に発生したガスを、溶湯を突き抜けて外部に逃げ易くす
る上で有効に働いているものと思われる。In the present invention, it has been confirmed through experiments that Bi has the function of increasing the temperature of the molten metal and decreasing the viscosity of the molten metal during welding. This seems to work effectively in making it easier for the gas generated during welding to penetrate the molten metal and escape to the outside.
一般に高速溶接の場合においてビット、ブローホールが
多く生成するのは、メツキ成分の蒸気等発生したガスが
溶湯を突き抜けて逃げるための充分な時間が与えられな
いまま溶湯がａｍｐてしまうことによるものである。In general, the reason why many bits and blowholes are generated during high-speed welding is that the molten metal amps up without being given enough time for the generated gases, such as the vapor of the plating component, to penetrate through the molten metal and escape. be.
しかるに本発明のワイヤを用いれば、発生したガスが溶
湯を突き抜は易くなるため、高速溶接した場合でもビッ
トやブローホールの発生が効果的に抑制されるのである
。However, when the wire of the present invention is used, the generated gas can easily penetrate the molten metal, so even when high-speed welding is performed, the occurrence of bits and blowholes can be effectively suppressed.
一方請求項（２）の発明は、上記請求項（１）のワイヤ
において、更にＮｂ、Ｖの少なくとも１種を含有させる
ようにしたもので、このようにすると、特に特定の鋼材
においてブローホール、ビットの発生を更に有効に抑制
することができる。具体的には、Ｎｂ、ＶはＮ２の固定
効果が大きく、それ故溶接時にＮ２が発生した場合であ
っても、かかるＮ２がビットやブローホールの原因とな
るのを防ぐことができる。従って本発明の溶接用ワイヤ
は、特に窒化処理した鋼材の溶接に用いて特に効果を発
揮する。On the other hand, the invention of claim (2) is characterized in that the wire of claim (1) further contains at least one of Nb and V. In this way, blowholes and The generation of bits can be suppressed more effectively. Specifically, Nb and V have a large fixing effect on N2, so even if N2 is generated during welding, it is possible to prevent such N2 from causing bits and blowholes. Therefore, the welding wire of the present invention is particularly effective when used for welding nitrided steel materials.
本願の第三の発明は、請求項（１） 、 （２）の溶接
用ワイヤにおいて、更にＡｌ、 Ｚｒ、 Ｔｉの少なく
とも１種を所定範囲て含有させるようにしだものである
。A third invention of the present application is the welding wire according to claims (1) and (2), further containing at least one of Al, Zr, and Ti within a predetermined range.
これら成分は脱酸力の強い成分であり、そしてその脱酸
作用に基づいてビット、フローホールの発生を抑制する
。These components have strong deoxidizing power, and based on their deoxidizing action, they suppress the generation of bits and flow holes.
一般に塗装鋼材をガスシールドアーク溶接した場合、溶
接時に発生するガスによっである程度シールドガスか乱
れるのを避は得ない。而してシールドガスか乱れると溶
接部に空気を巻き込んでしまう、このように空気か巻き
込まれると、空気中の酸素かＣと反応してＣＯを発生さ
せ、これかビットやブローホールの原因となる。Generally, when gas-shielded arc welding is performed on coated steel materials, it is inevitable that the shielding gas will be disturbed to some extent by the gas generated during welding. If the shielding gas is disturbed, air will be drawn into the welding area. When air is drawn in in this way, it will react with oxygen or C in the air and generate CO, which can cause bits and blowholes. Become.
しかるにＡｌ、 Ｚｒ、 Ｔｉを含有させておくと、そ
れらの脱酸作用により、つまりそれら成分か０と結合し
てこれを固定することによりＣＯの発生を抑制し、以て
ビット、ブローホールの生成を抑える働きをするのであ
る。However, when Al, Zr, and Ti are contained, their deoxidizing action suppresses the generation of CO by binding and fixing these components, thereby preventing the formation of bits and blowholes. It works to suppress the
次に本発明の溶接用ワイヤにおける各成分の限定理由に
ついて詳述する。Next, the reason for limiting each component in the welding wire of the present invention will be explained in detail.
Ｃ≦０．１５％
Ｃは溶接用ワイヤに強度を付与するために必要な成分で
あるか、その量か０．１５％よりも多くなるとワイヤの
延性か劣化してしまう、それ故Ｃについては０．１５％
以下とすることが必要である。C≦0.15% Is C a necessary component to give strength to welding wire?If the amount exceeds 0.15%, the ductility of the wire will deteriorate.Therefore, regarding C, 0.15%
It is necessary to do the following.
Ｓｉ：０．５〜１．５％
舖ｎ：１．０〜２．５％
Ｓｉ、 Ｍｎは何れも脱酸剤として必要なものてあり、
その量かそれぞれ０．５％、１．０％より少ないと脱酸
不足となり、また強度も不足する。またＳｉの場合、そ
の量か１．５％より多くなるとワイヤの靭性か劣化し、
またＭｎの場合、その量か２．５％より多くなると、硬
度上昇により延性が低下してしまう。更にＳｉの場合、
後述のＢｉと共に溶湯の粘性を低下させる働きかあり、
その働きを有効に行わせる上でも０．５〜１．５％とす
る必要かある。Si: 0.5-1.5% Si: 1.0-2.5% Both Si and Mn are necessary as deoxidizing agents.
If the amount is less than 0.5% or 1.0%, respectively, deoxidation will be insufficient and strength will also be insufficient. In addition, in the case of Si, if the amount exceeds 1.5%, the toughness of the wire will deteriorate.
Moreover, in the case of Mn, if the amount exceeds 2.5%, the ductility decreases due to an increase in hardness. Furthermore, in the case of Si,
Together with Bi (described later), it only works to reduce the viscosity of the molten metal.
In order to perform its function effectively, it is necessary to set it at 0.5 to 1.5%.
尚、Ｓｉ、Ｎｎは溶接部を高張力化する働きがあり、従
ってこれら成分を比較的多く含む本発明のワイヤは、高
張力鋼の溶接に際して好適に用いることができる。Incidentally, Si and Nn have the function of increasing the tensile strength of the welded portion, and therefore, the wire of the present invention containing relatively large amounts of these components can be suitably used for welding high-tensile steel.
Ｂｉ：０．００５〜０．２０％
Ｂｉはアークの集中性を良くし、これによって溶湯の温
度を高める働きをする。溶湯の温度が高くなれば冷却時
間は長くなり、従って発生したガスが溶湯の凝固前にこ
れを突き抜は易くなる。このため発生ガスによるビット
、ブローホールの生成が抑制される。Bi: 0.005-0.20% Bi improves the concentration of the arc, thereby increasing the temperature of the molten metal. The higher the temperature of the molten metal, the longer the cooling time and therefore the easier it is for the generated gas to penetrate the molten metal before it solidifies. Therefore, the generation of bits and blowholes due to generated gas is suppressed.
またこのＢｉと前記Ｓｉの複合効果によって溶湯の粘性
が低下し、このために発生したガスが溶湯をより突き抜
は易くなって、ビット、ブローホールの発生が抑制され
る。但しこのＢｉは、その含有量が０．００５％より少
ないと上記効果が充分に得られず、逆に０．２０％より
も多くなると靭性が低下し、またコストがいたずらに高
くなってしまう。Further, the combined effect of Bi and the Si lowers the viscosity of the molten metal, making it easier for the generated gas to penetrate the molten metal, thereby suppressing the occurrence of bits and blowholes. However, if the Bi content is less than 0.005%, the above-mentioned effects cannot be obtained sufficiently, and if it is more than 0.20%, the toughness decreases and the cost becomes unnecessarily high.
Ｎｂ：０．００５〜１．２％
Ｖ：０．００５〜１．２％
前述したように、Ｎｂ、ＶはＮと反応してこれを固定す
る作用がある。そしてこのことにより、特に窒化処理鋼
材において、Ｎ２ガス発生によるビット、ブローホール
の発生を抑制する。但しその量が０．００５％より少な
いとＮ２の充分な固定効果が得られず、逆に１．２％よ
り多くなると靭性が低下し、コストが高くなってしまう
。Nb: 0.005-1.2% V: 0.005-1.2% As mentioned above, Nb and V react with N and have the effect of fixing it. This suppresses the generation of bits and blowholes due to N2 gas generation, especially in nitrided steel materials. However, if the amount is less than 0.005%, a sufficient fixing effect of N2 cannot be obtained, whereas if it is more than 1.2%, the toughness will decrease and the cost will increase.
？ｉ：０．００５〜０．５％
Ｚｒ：〃
Ａｔ： ／／
これら成分は脱酸力の強いものであり、その脱酸作用に
より、特に塗装鋼材の溶接の際に、シールドガスの乱れ
及びこれに基づく空気の巻込みによる溶接欠陥、即ち巻
き込まれた空気とＣとの反応により発生したＣＯによる
ビット、ブローホールの生成を効果的に抑制する。? i: 0.005 to 0.5% Zr:〃 At: // These components have strong deoxidizing power, and their deoxidizing action prevents turbulence of shielding gas and this, especially when welding painted steel materials. This effectively suppresses the welding defects caused by air entrainment, that is, the formation of bits and blowholes caused by CO generated by the reaction between the entrained air and C.
（実施例）
次に本発明の特徴を更に明確にすべく、以下にその実施
例を詳述する。(Example) Next, in order to further clarify the characteristics of the present invention, examples thereof will be described in detail below.
［実施例１］
第１図に示しているように、外径９０ｍｍφ、内径３０
ｍｍφ、輻５０■■の、表面窒化処理したリング状の鋼
製（３４５Ｃ）ブロックｌＯに対して、直径３０腸膳φ
、長さ１２０腸■の表面窒化処理した鋼製（Ｓ ４５
Ｃ）丸棒１２を嵌合した上、下記の条件の下に円周すみ
肉溶接を行い、ビット、ブローホールの発生状態を調べ
た。結果が第１表に示しである。[Example 1] As shown in Fig. 1, the outer diameter is 90 mmφ and the inner diameter is 30 mm.
For a ring-shaped steel (345C) block lO with a nitrided surface and a diameter of 50mmφ, a diameter of 30 mm is used.
, made of surface nitrided steel (S 45
C) After fitting the round bar 12, circumferential fillet welding was performed under the following conditions, and the occurrence of bits and blowholes was examined. The results are shown in Table 1.
く溶接条件〉
ワイヤ径：１．２履禦φ
（Ｐ、Ｓ量：０．０３％以下）
溶接電流：１６０〜２００Ａ
溶接速度：６０〜１００ｃｍ／分
シールドガス：２０％ＣＯｚ ＋Ａｒ
（以下余白）
［実施例２］
１８２図に示すように、厚み２．０ｓ■９幅５０ｓｕｉ
、長さ２５０■１の無機亜鉛塗装鋼板１４を２枚重ね、
下記の条件の下に、下向王道３０＃で重ねすみ肉溶接を
行い、ビット、ブローホールの発生状態を調査した。結
果が第２表に示しである。Welding conditions> Wire diameter: 1.2mm (P, S amount: 0.03% or less) Welding current: 160-200A Welding speed: 60-100cm/min Shielding gas: 20% COz + Ar (blank below) [Example 2] As shown in Figure 182, thickness 2.0s x 9 width 50sui
, two inorganic zinc-coated steel plates 14 with a length of 250 cm are stacked,
Under the following conditions, lap fillet welding was carried out using a 30# downhill weld, and the occurrence of bits and blowholes was investigated. The results are shown in Table 2.
〈溶接条件〉
溶接電流：２００，２３ＯＡ
溶接速度： １００．１３０ｃｍ／分
（以下余白）
以上本発明の実施例を詳述したか、本発明はその主旨を
逸脱しない範囲において、当業者の知識に基づき様々な
変更を加えた形態て構成可能である。<Welding conditions> Welding current: 200, 23OA Welding speed: 100.130cm/min (blank below) Although the embodiments of the present invention have been described in detail above, the present invention is within the scope of the knowledge of those skilled in the art without departing from the spirit thereof. It is possible to configure various forms based on the above.
第１図及び第２図は、それぞれ本発明の各実施例を説明
するための説明図である。
１０：鋼製ブロック
１２：鋼製丸棒
１４：鋼板
特許出願人 大同特殊鋼株式会社FIG. 1 and FIG. 2 are explanatory diagrams for explaining each embodiment of the present invention, respectively. 10: Steel block 12: Steel round bar 14: Steel plate Patent applicant Daido Steel Co., Ltd.
Claims (3)
．５％、Ｍｎ：１．０〜２．５％、Ｂｉ：０．００５〜
０．２０％、残部実質的にＦｅより成ることを特徴とす
るガスシールドアーク溶接用ワイヤ。(1) Based on weight, C≦0.15%, Si: 0.5-1
．． 5%, Mn: 1.0-2.5%, Bi: 0.005-
A wire for gas shielded arc welding, characterized in that the wire is composed of 0.20% Fe and the remainder substantially Fe.
ｂ、Ｖの１種若しくは２種を、それぞれＮｂ：０．００
５〜１．２％、Ｖ：０．００５〜１．２％の範囲で含有
することを特徴とするガスシールドアーク溶接用ワイヤ
。(2) In the arc welding wire of claim (1), N
Nb: 0.00 for one or two of b and V, respectively.
A wire for gas shielded arc welding characterized by containing V in a range of 5 to 1.2% and V in a range of 0.005 to 1.2%.
いて、更にＴｉ、Ｚｒ、Ａｌの１種若しくは２種以上を
、Ｔｉ：０．００５〜０．５％、Ｚｒ：０．００５〜０
．５％、Ａｌ：０．００５〜０．５％の各量範囲で含有
することを特徴とするガスシールドアーク溶接用ワイヤ
。(3) The arc welding wire according to claims (1) and (2) further contains one or more of Ti, Zr, and Al, Ti: 0.005 to 0.5%, Zr: 0.005%. ~0
．． 5%, and Al: 0.005 to 0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14584790A JPH0441098A (en) | 1990-06-04 | 1990-06-04 | Wire for gas shielded arc welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14584790A JPH0441098A (en) | 1990-06-04 | 1990-06-04 | Wire for gas shielded arc welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0441098A true JPH0441098A (en) | 1992-02-12 |
Family
ID=15394474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14584790A Pending JPH0441098A (en) | 1990-06-04 | 1990-06-04 | Wire for gas shielded arc welding |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441098A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197147B2 (en) | 2010-11-10 | 2019-02-05 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US11624432B2 (en) | 2018-11-06 | 2023-04-11 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US11667351B2 (en) | 2016-05-11 | 2023-06-06 | Fallbrook Intellectual Property Company Llc | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission |
| US12000458B2 (en) | 2019-02-26 | 2024-06-04 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
-
1990
- 1990-06-04 JP JP14584790A patent/JPH0441098A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10197147B2 (en) | 2010-11-10 | 2019-02-05 | Fallbrook Intellectual Property Company Llc | Continuously variable transmission |
| US11667351B2 (en) | 2016-05-11 | 2023-06-06 | Fallbrook Intellectual Property Company Llc | Systems and methods for automatic configuration and automatic calibration of continuously variable transmissions and bicycles having continuously variable transmission |
| US11624432B2 (en) | 2018-11-06 | 2023-04-11 | Fallbrook Intellectual Property Company Llc | Continuously variable transmissions, synchronous shifting, twin countershafts and methods for control of same |
| US12000458B2 (en) | 2019-02-26 | 2024-06-04 | Fallbrook Intellectual Property Company Llc | Reversible variable drives and systems and methods for control in forward and reverse directions |
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