JP5288910B2 - Picker of the casting - Google Patents

Picker of the casting Download PDF

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JP5288910B2
JP5288910B2 JP2008172733A JP2008172733A JP5288910B2 JP 5288910 B2 JP5288910 B2 JP 5288910B2 JP 2008172733 A JP2008172733 A JP 2008172733A JP 2008172733 A JP2008172733 A JP 2008172733A JP 5288910 B2 JP5288910 B2 JP 5288910B2
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casting
sand mold
hook
sand
portion
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JP2010012480A (en
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卓三 林
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株式会社北川鉄工所
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本発明は、砂型を使用して鋳造物を鋳造した後に鋳造物を砂型から取り出す鋳造物の取り出し装置に関する。 The present invention relates to a take-out device of the casting is taken out of the casting from the sand mold after cast casting using sand molds.

一般に鋳造後に砂型から鋳造物を取り出すに際し、鋳造物を砂型から取り出すことが知られている。 Upon generally take out the casting from the sand mold after casting, and the casting is known to take out from the sand mold.
例えば、特許文献1に記載の装置によれば、鋳造物には係合部位である係合部が備えられており、砂型を水平に搬送するベルトコンベアで搬送し、そのベルトコンベアの端部から砂型を押し出す押し出し部材が設けられている。 For example, according to the apparatus described in Patent Document 1, the casting is provided with the engaging portion is engageable portion, conveyed by a belt conveyor for conveying the sand mold horizontally from the end of the belt conveyor extrusion member to push the sand mold is provided.
砂型が押し出される先方には鋳造物に設けた係合部へ係合するフックが略水平に位置決めされている。 The other party that the sand mold is extruded hook to be engaged to the engaging portion provided on the castings are positioned substantially horizontally.

ベルトコンベアで搬送された砂型から鋳造物を取り出す際には、砂型はベルトコンベアの端部で押し出し部材によりベルトコンベアから押し出される。 When taking out the cast from the sand mold which has been conveyed by the belt conveyor, the sand mold is pushed out by the member extruded at the end of the belt conveyor from the conveyor belt. 押し出された砂型は、先方に設けられたフックの先端に前方から衝突する。 Extruded sand mold collides from the front tip of the hook provided on the other party.
フックの衝突により、砂型の前方端部が崩され、フックが鋳造物に設けられた係合部の直下へ配置される。 The collision of the hook, the forward end portion of the sand mold is collapsed, the hook is disposed directly below the engaging portion provided on the casting.
この状態で砂型が自重で下がり、鋳造物の係合部がフックと係合して鋳造物のみがフックに吊り下げられ、砂型は崩れて落下する。 Sand mold is lowered by its own weight in this state, the engaging portion of the casting is only cast engages the hook hung on the hook, falls collapses sand type.
特開平7−284912号公報 JP-7-284912 discloses

しかしながら、前述の鋳造物の取り出し装置によると、砂型をフックへ衝突させて砂型の先端を崩してフックを鋳造物の係合部位である係合部の直下へ位置決めして鋳造物を吊り下げているので、まずフックにより砂型を崩す必要が生じる。 However, according to the take-out apparatus of the casting of the foregoing, suspended sand mold casting was then positioned by colliding the hook breaking the tip of the sand mold to just below the engagement portion is engaged portion of the casting hook because there, first it is necessary to break the sand mold by hooks.
しかし、砂型は鋳造物の成形精度を高めるためにやわらかくすることはできず、容易に崩し易くできない。 However, sand is not able to soften in order to improve the molding accuracy of the casting, can not be readily easily break.
そのため、フックを衝突させても十分に砂型を崩すことができず、フックを鋳造物の係合部の直下である所定の位置へ正確に配置することが困難となり、確実に鋳造物をフックへ吊り下げることができず、鋳造物を取り出すことができないという問題が発生する。 Therefore, it is difficult to be allowed to collide hooks break enough sand mold, it is difficult to accurately place the hook into position which is immediately below the engaging portion of the casting, surely cast into the hook can not be suspended, a problem that can not be taken out of the casting occurs.
したがって、本発明は簡単に砂型を崩すことができ、鋳造物を容易に砂型から取り出すことのできる鋳造物の取り出し装置を提供することを目的とする。 Accordingly, the present invention can easily break the sand mold, and an object thereof is to provide a take-out device of the casting which can be taken out casting easily from the sand mold.

前記の課題を解決するため、本発明は、砂型を使用して鋳造物を鋳造した後に前記鋳造物を砂型から取り出す鋳造物の取り出し装置において、砂型を搬送するベルトコンベアと、該ベルトコンベア上の砂型から鋳造物を取り出してハンガーへ移動させるアーム部を有し、前記アーム部が鋳造物を吊り下げるフックを備え、 前記アーム部がフックに吊り下げた鋳造物をハンガーへ移動させる際にアーム部とハンガーの相対的に位置を一致させる位置合わせ手段を備えることを特徴とする。 In order to solve the above problems, the present invention provides a take-out device of the casting is taken out from the sand mold the casting after casting casting using sand molds, a belt conveyor for conveying the sand mold, on the belt conveyor Remove the casting from the sand mold has an arm portion for moving the hanger comprises a hook the arm portion suspend the casting, the arm portion of the casting in which the arm portion is suspended on the hook when moved to the hanger characterized in that it comprises a positioning means for matching the relatively position of the hanger.

また、前記位置合わせ手段がアーム部へハンド部を備え、該ハンド部がハンガーの両端側で外方から内方へ移動することで位置合わせを行うことを特徴とする。 Further, the alignment means comprises a hand portion to the arm portion, the hand unit is equal to or aligning by moving from the outside inwardly at both ends of the hanger.
また、前記位置合わせ手段がアーム部へ位置検出センサーを備え、前記アーム部の動作を制御することで位置合わせを行うことを特徴とする。 Further, the alignment means comprises a position detection sensor to the arm portion, and wherein the aligning by controlling the operation of the arm portion.

本発明によれば、簡単に砂型を崩すことができ、鋳造物を容易に砂型から取り出すことができ、また、位置合わせ手段を備えることにより、アーム部とハンガーに位置合わせを容易に行うことができるので、効率よく鋳造物の取り出し作業を行なうことができ、作業時間の短縮に寄与できる。 According to the present invention, it can easily break the sand mold, casting a can be taken out easily from the sand mold, also, by providing the alignment means, be aligned easily to the arm portion and the hanger It can Runode, extraction work efficiently casting that can performed, can contribute to shortening of the working time.

以下に本発明の実施例について図を用いて説明する。 It will be described with reference to the drawings Examples of the invention are shown below.
図1は、本発明の実施例における砂型と鋳造物の取り出す前の状態を示す概略図である。 Figure 1 is a schematic view showing a state before removing the sand mold and casting in the embodiment of the present invention.
図2は、実施例の鋳造物とフックが係合した状態を示す部分拡大図である。 Figure 2 is a partially enlarged view showing a state where the casting and hook Example is engaged.
図3は、実施例の鋳造物の取り出す直前を示す側断面図である。 Figure 3 is a side sectional view of a immediately before taking out the casting of Example.
図4は、フックが砂型へ突入した状態を示す断面拡大図である。 Figure 4 is an enlarged sectional view showing a state where the hook has entered into a sand mold.
図5はフックが鋳造物を吊り下げた状態でハンガーと対峙している状態を示す側面拡大図である。 Figure 5 is an enlarged side view showing a state of facing the hanger in a state in which the hook is suspended casting.
図6は、A−A矢視による断面図である。 Figure 6 is a sectional view taken along A-A arrow view.

鋳造物14を鋳造する際には、図1に示すように、図示しない型枠内に砂込めして成形された砂型1を使用して鋳造物14を鋳造する。 When casting the casting 14, as shown in FIG. 1, casting the casting 14 by using the sand mold 1 which is formed by put sand in the mold (not shown).
この型枠は内部に生砂(以下、砂という)を収納して砂型1を形成する。 The formwork inside green sand (hereinafter, sand hereinafter) is housed to form a sand mold 1.
型枠は、上型を形成する上枠と、下型を形成する下枠とから構成されている。 Formwork, the upper frame forming the upper mold, and a lower frame forming a lower mold.
鋳造物14は上型と下型との合わせ面付近で成形され、砂型の製品成形部において成形される製品部2と、湯口や湯道4などにおいて成形される方案部3とから構成されている。 Casting 14 is molded around the mating surfaces of the upper and lower molds, a product portion 2 which is formed in the product forming portion of the sand mold, consists scheme portion 3 which is formed in such a sprue or runner 4 there.
本実施例では前述のように砂型1を上型と下型で構成する水平割りの形態で示しているが、一般に砂型1はこの水平割りの形態に限定するものではなく、鋳造物14の形状に応じて砂型1を前方と後方に分割とする前型と後型で構成する垂直割りの形態になす場合もある。 Although this embodiment shows in the form of a horizontal split constituted by upper and lower molds the sand mold 1 as described above, generally the sand mold 1 is not limited to the form of the horizontal split, the shape of the casting 14 sometimes it forms in the form of a vertical split constituted by front-type and rear type to divide the sand mold 1 forward and backward in accordance with the.
鋳造物14の方案部3は図2に示されるように、各々の製品部2を互いに連結するとともに、鋳造物14の周囲へ張り出しており、張り出し部の末端が平面T字形に成形されている。 Scheme 3 of the casting 14 as shown in FIG. 2, with connecting each product portion 2 from each other, and projecting to the surrounding of the casting 14, the ends of the projecting portion is formed in a planar T-shaped . この張り出し部を以後係合部5という。 The projecting portion hereinafter referred to as engaging portion 5.

また、前記砂型1は、図3に示すように内方へ空間を備える空洞部6を有して成形されている。 Further, the sand mold 1 is shaped with a cavity 6 with a space inward as shown in FIG.
砂型1の空洞部6は鋳造する鋳造物14とは別の形状の模型を用いて、鋳造する鋳造物14とは分かれて、砂型1に空間を成形させて、空洞部6を形成する。 Cavity 6 of the sand mold 1 by using a model of a different shape than the casting 14 to be cast, separated from the castings 14 for casting, by forming a space sand mold 1, to form a cavity 6.

前記砂型1に注湯を行なう場所から砂型1を崩して鋳造物14と取り出す場所へ搬送するためにベルトコンベア9が設けられている。 Belt conveyor 9 is provided for transporting to a place to take out a casting 14 break the sand mold 1 week performing poured into the sand mold 1.
ベルトコンベア9は、注湯された砂型1を、冷却を行なう冷却経路を通過させて砂型1を崩して鋳造物14を取り出す場所へと搬送をおこなう。 Belt conveyor 9, a sand mold 1, which is poured, to convey to where to retrieve the casting 14 to the cooling path was passed destroy the sand mold 1 for cooling.
ベルトコンベア9の進行方向先方には砂型1から鋳造物14を分離させて鋳造物14のみを取り出すアーム部7が設けられている。 The traveling direction other party of the belt conveyor 9 arm 7 to take out only the casting 14 to separate the casting 14 from the sand mold 1 is provided.
アーム部7は、移動自在のロボットアームに構成されており、図4に示すようにアーム部7の先端部には鋳造物14を吊り下げるフック8が設けられている。 Arm 7 is configured to movable robotic arm, the hook 8 hanging the casting 14 to the distal end of the arm 7 as shown in FIG. 4 is provided.
フック8は鋳造物14の方案部3に成形された係合部5に係合することで鋳造物14を吊り下げられるように配置されている。 Hook 8 is arranged to be suspended casting 14 by engaging the engaging portion 5 which is formed in the scheme 3 of the casting 14.

前記フック8は別途設けられたモーターにより、先端突入部位であるドリル10が回転自在に設けられている。 By the hook 8 is a separately provided motor, the drill 10 is rotatably provided a tip rush site. アーム部7の前進移動に合わせてドリル10が回転しつつ砂型1に形成された空洞部6へ突入されるようになされている。 In accordance with the forward movement of the arm portions 7 are adapted to drill 10 is plunged into the cavity 6 formed in Sunagata 1 while rotating.
ドリル10は、通常の工具用ドリルやリーマと同じ形状で構成されている。 Drill 10 is composed of the same shape as the drill or reamer for normal tool. しかしながらこれに限定するものではなく、ドリル10は砂型1へ突入を容易にできるように先端部位が鋭利な角度を備えているもので構成されている。 However the present invention is not limited thereto, the drill 10 is composed of those tip section so that it can easily rush into the sand mold 1 is provided with a sharp angle.

また、前記アーム部7は、吊り下げた鋳造物14をベルトコンベア9の上から取り出し、フック8で吊り下げた状態で別途設けられたハンガー11へ移動させる。 Further, the arm portion 7 takes out the casting 14 suspended from the top of the belt conveyor 9, is moved to a hanger 11, which is separately provided in a state of suspended by hooks 8.
その際に、図5に示すようにアーム部7とハンガー11の位置を相対的に一致させて鋳造物14をフック8からハンガー11へスムーズに移動させる必要がある。 At that time, it is necessary to move the casting 14 relative to match the position of the arm portion 7 and the hanger 11 as shown in FIG. 5 smoothly from the hook 8 to hanger 11.
そのため、アーム部7にはハンガー11の両側を外方より把持する把持部材12が備えられている。 Therefore, the arm 7 grip member 12 is provided for gripping the sides of the hanger 11 from the outside.
把持部材12はハンガー11の両端側の外方から内方へ移動するハンド部13を備えている。 Gripping member 12 is provided with a hand portion 13 to move from the outside of both ends of the hanger 11 inward. このハンド部13が図6に示すように外方からハンガー11の両端側を把持して、ハンガー11とアーム部7を一体となし、相対的に位置関係を一致させて位置合わせを行なう。 The hand unit 13 grips the both ends of the hanger 11 from the outside as shown in FIG. 6, No To integrally hanger 11 and the arm portion 7 performs alignment by matching the relative positional relationship.

次に、本発明の鋳造物14の取り出し装置における実施例の動作の説明を行なう。 Next, the description of the operation of the embodiment of the extraction device of the casting 14 of the present invention.
まず、型枠内に模型が位置決めされて砂込めが行なわれて砂型1が成形される。 First, the model in the mold is positioned is performed rice sand sand mold 1 is molded.
この際、所望する鋳造物14の模型とは別体に空洞部6を形成するための模型も配設されて砂込めが行なわれる。 At this time, the model of the casting 14 desired is model also provided for forming the cavity portion 6 separately put sand is performed.
これにより注湯が行なわれて鋳造物14が鋳造される空間とは別に、注湯が行なわれない空洞部6が砂型に成形される。 Separately the Note space casting 14 hot water is carried out is cast, cavity 6 which pouring is not performed is formed into a sand mold.

砂型1が完成すると、砂型1へ溶湯が注入される。 When sand mold 1 is completed, the molten metal is injected into the sand mold 1.
注湯後、所定時間が経過して砂型1内の溶湯が凝固すると、図1に示すように砂型1内には模型と同形状の鋳造物が成形される。 After pouring, when molten metal is solidified in the sand mold 1 has passed the predetermined time, casting of the model and the same shape in the sand mold 1, as shown in FIG. 1 is molded.
溶湯が凝固すると、砂型1はベルトコンベア9に積載されて砂バラシ位置まで搬送される。 When the molten metal is solidified, the sand mold 1 is conveyed is stacked on the belt conveyor 9 until sand Balazs position. 図3に示すように砂型1がベルトコンベア9により所定の位置へ配置されると、アーム部7が砂型1への移動を開始する。 When the sand mold 1, as shown in FIG. 3 is arranged by the belt conveyor 9 to a predetermined position, the arm portions 7 starts to move to the sand mold 1.

まず、アーム部7の先端に備えられたフック8が回転しつつ、砂型1の空洞部6の位置へ突入される。 First, the hooks 8 provided on the tip of the arm portion 7 while rotating, are plunged into the position of the cavity 6 of the sand mold 1.
砂型1へ突入したフック8は回転しながら砂型1の内方へ押し入り、回転部位の先端部のドリル10が砂型1の内方に設けられた空洞部6に達する。 Hook 8 has entered the sand mold 1 is broke inwardly of the sand mold 1 while rotating, the drill 10 of the tip portion of the rotating part reaches the cavity 6 provided inwardly of the sand mold 1.

砂型1は空洞部6までフック8が到達したことにより、空洞部6の周囲の砂が崩される。 Sand mold 1 by the hook 8 has reached the cavity 6, the sand surrounding the cavity 6 is collapsed. フック8が回転しつづけることで、さらに砂型1の崩壊が進行され、フック8が砂型1へ突入された状態で砂型1を崩していく。 By hook 8 continues to rotate, the progress further collapse of the sand mold 1, will break the sand mold 1 while the hook 8 is rush into the sand mold 1.
砂型1の内方に空洞部6を形成することで、フック8の突入を容易とし、且つ突入したフック8の回転動作によって砂型1が崩れ易くなり、従来の均一に充満した砂型1とは異なり、簡単に砂型1を崩すことができる。 By forming the cavity 6 in the interior of the sand mold 1, to facilitate the rush of the hook 8, and easily collapsed sand mold 1 by rotation of the hook 8 which has entered, unlike the sand mold 1 filled in conventional uniform , it is possible to easily break the sand mold 1.

砂型1へ突入したフック8は回転しながらさらに砂型1の奥まで侵入し、鋳造物14の係合部5に達し、図4に示すようにフック8が鋳造物14の方案部3に形成された係合部5と係合して、鋳造物14を吊り下げる。 Hook 8 has entered the sand mold 1 is further penetrate deep into the sand mold 1 while rotating, reaches the engagement portion 5 of the casting 14, the hook 8 as shown in FIG. 4 is formed in the scheme 3 of the casting 14 engagement portion 5 engage with, suspending casting 14.
鋳造物14はフック8に吊り下げられることで砂型1と分離される。 Casting 14 is separated from the sand mold 1 by being suspended from the hook 8.

アーム部7はフック8にて鋳造物14を吊り下げた状態で移動し、ハンガー11の配置位置へ鋳造物14を搬送する。 Arm 7 is moved in a state of suspended castings 14 at the hook 8, it conveys the casting 14 to the position of the hanger 11.
図5に示すようにアーム部7がハンガー11と対向する位置に移動すると、アーム部7の先端部位に設けられた位置合わせ手段により、アーム部7とハンガー11の位置合わせが行なわれる。 When the arm portions 7 as shown in FIG. 5 is moved to the position facing the hanger 11, the positioning means provided on the distal end portion of the arm portion 7, the positioning of the arm portions 7 and the hanger 11 is performed.
位置合わせ手段としてアーム部7に設けられた把持部材12はハンガー11の両端側の外方から内方へ移動するハンド部13を備えている。 Gripping member 12 provided in the arm portion 7 as an alignment means comprises a hand portion 13 to move from the outside of both ends of the hanger 11 inward.
ハンド部13が外方から内方へ移動することでハンガー11の両端側を把持する。 Hand portion 13 grips the both ends of the hanger 11 by moving from outside to inside.
これにより、ハンガー11とアーム部7を一体となし、相対的に位置関係を一致させて位置合わせを行なう。 Thus, no hanger 11 and the arm portion 7 To integrally perform alignment by matching the relative positional relationship.

また、本発明の他の実施例としては、アーム部7の先端部位へ位置検出用センサーを備え、アーム部7の位置合わせ動作をセンサーの検出位置により制御を行なう。 Further, as another embodiment of the present invention is provided with a position detecting sensor to the distal end portion of the arm portion 7, the positioning operation of the arm portion 7 performs control by detecting the position of the sensor.
本実施例の鋳造物取り出し装置は、アーム部7の先端部位へ鋳造物の係合部の位置を検出する位置検出センサーを備えることにより、砂型1へ突入させるフック8の突入位置を鋳造物14の係合部5の位置へ位置合わせを行なってアーム部7の動作を制御することができる。 Casting extraction device of this embodiment is provided with the position detection sensor for detecting the position of the engaging portion of the casting to the tip portion of the arm portion 7, casting an inrush position of the hook 8 to rush into the sand mold 1 14 it can control the operation of the arm 7 by performing the alignment of the position of the engaging portion 5.
これにより、アーム部7のフック8が正確に鋳造物14の係合部5を係合できる位置へ突入することができ、フック8が確実に鋳造物14の係合部5を捕らえて、鋳造物14を常に誤り無く吊り下げることができる。 Thus, the hook 8 of the arm portions 7 can rush to the position where it can engage the engaging portion 5 of accurately cast 14, captures the engagement portion 5 of the hook 8 is reliably cast 14, the cast always it can be suspended without error things 14.

本発明の実施例における砂型と鋳造物の取り出す前の状態を示す概略図である。 It is a schematic view showing a state before taking out the sand mold and casting in the embodiment of the present invention. 実施例の鋳造物とフックが係合した状態を示す部分拡大図である。 It is a partially enlarged view showing a state where the casting and hook Example is engaged. 実施例の鋳造物の取り出す直前を示す側断面図である。 Is a side sectional view of a immediately before taking out the casting of Example. ックが砂型へ突入した状態を示す断面拡大図である。 Click is an enlarged cross-sectional view showing a state in which the rush to sand. フックが鋳造物を吊り下げた状態でハンガーと対峙している状態を示す側面拡大図である。 Hook is a side enlarged view showing a state of facing the hanger in a state of suspended casting. A−A矢視による断面図である。 It is a cross-sectional view taken along A-A arrow view.

符号の説明 DESCRIPTION OF SYMBOLS

1 砂型2 製品部3 方案部5 係合部6 空洞部7 アーム部8 フック11 ハンガー12 把持部材13 ハンド部14 鋳造物 1 sand mold 2 product portion 3 scheme 5 engagement portions 6 cavity 7 arm 8 hook 11 the hanger 12 the gripping member 13 the hand portion 14 cast

Claims (3)

  1. 砂型を使用して鋳造物を鋳造した後に前記鋳造物を砂型から取り出す鋳造物の取り出し装置において、砂型を搬送するベルトコンベアと、該ベルトコンベア上の砂型から鋳造物を取り出してハンガーへ移動させるアーム部を有し、前記アーム部が鋳造物を吊り下げるフックを備え、 前記アーム部がフックに吊り下げた鋳造物をハンガーへ移動させる際にアーム部とハンガーの相対的に位置を一致させる位置合わせ手段を備えることを特徴とする鋳造物の取り出し装置。 In the pickup device of the casting is taken out from the sand mold the casting after casting casting using sand molds, a belt conveyor for conveying the sand mold, the arm is moved to the hanger removed casting from the sand mold on the belt conveyor has a part provided with a hook the arm portion suspend the casting alignment to match the relatively position of the arm portion and the hanger when moving the castings the arm portion is suspended on the hook to the hanger Picker of the casting, characterized in that it comprises means.
  2. 前記位置合わせ手段がアーム部へハンド部を備え、該ハンド部がハンガーの両端側で外方から内方へ移動することで位置合わせを行うことを特徴とする請求項1記載の鋳造物の取り出し装置。 Wherein a handheld unit positioning means to the arm portion, extraction of claim 1 cast according to the hand part, characterized in that the aligning by moving from the outside inwardly at both ends of the hanger apparatus.
  3. 前記位置合わせ手段がアーム部へ位置検出センサーを備え、前記アーム部の動作を制御することで位置合わせを行うことを特徴とする請求項1記載の鋳造物の取り出し装置。 Said alignment means comprises a position detection sensor to the arm, take-out apparatus according to claim 1 cast of wherein the aligning by controlling the operation of the arm portion.
JP2008172733A 2008-07-01 2008-07-01 Picker of the casting Active JP5288910B2 (en)

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US5825542A (en) 1995-06-26 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting multilayer polarizers and mirrors
US5828488A (en) 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US5831375A (en) 1995-08-11 1998-11-03 Minnesota Mining And Manufacturing Company Electroluminescent lamp using multilayer optical film
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US5946431A (en) 1993-07-30 1999-08-31 Molecular Dynamics Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces
US5976424A (en) 1996-07-31 1999-11-02 Minnesota Mining And Manufacturing Company Method for making multilayer optical films having thin optical layers
US6025897A (en) 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US6080467A (en) 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
US6088067A (en) 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
US6088163A (en) 1995-06-26 2000-07-11 3M Innovative Properties Company Metal-coated multilayer mirror
US6096375A (en) 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
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US6124971A (en) 1995-06-26 2000-09-26 3M Innovative Properties Company Transflective displays with reflective polarizing transflector
US6185039B1 (en) 1997-12-06 2001-02-06 3M Innovative Properties Co. Infrared selective reflective polarizing element
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US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
US7800823B2 (en) 2004-12-06 2010-09-21 Moxtek, Inc. Polarization device to polarize and further control light
US7813039B2 (en) 2004-12-06 2010-10-12 Moxtek, Inc. Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid
US7961393B2 (en) 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire grid polarizer
US8755113B2 (en) 2006-08-31 2014-06-17 Moxtek, Inc. Durable, inorganic, absorptive, ultra-violet, grid polarizer
US8873144B2 (en) 2011-05-17 2014-10-28 Moxtek, Inc. Wire grid polarizer with multiple functionality sections
US8913320B2 (en) 2011-05-17 2014-12-16 Moxtek, Inc. Wire grid polarizer with bordered sections
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8922890B2 (en) 2012-03-21 2014-12-30 Moxtek, Inc. Polarizer edge rib modification
US9348076B2 (en) 2013-10-24 2016-05-24 Moxtek, Inc. Polarizer with variable inter-wire distance

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JP2736139B2 (en) * 1989-11-16 1998-04-02 アイシン高丘株式会社 No frame casting line

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US6096375A (en) 1993-12-21 2000-08-01 3M Innovative Properties Company Optical polarizer
US5828488A (en) 1993-12-21 1998-10-27 Minnesota Mining And Manufacturing Co. Reflective polarizer display
US6804058B1 (en) 1993-12-21 2004-10-12 3M Innovative Properties Company Electroluminescent light source and display incorporating same
US5882774A (en) 1993-12-21 1999-03-16 Minnesota Mining And Manufacturing Company Optical film
US6543153B1 (en) 1993-12-21 2003-04-08 3M Innovative Properties Company Reflective polarizer having improved properties and optical display with improved reflective polarizer
US6025897A (en) 1993-12-21 2000-02-15 3M Innovative Properties Co. Display with reflective polarizer and randomizing cavity
US6613421B2 (en) 1993-12-21 2003-09-02 3M Innovative Properties Company Optical film
US6396631B1 (en) 1994-04-06 2002-05-28 3M Innovative Properties Company Light fixture having a multilayer polymeric film
US6685341B2 (en) 1994-04-06 2004-02-03 3M Innovative Properties Company Light fixture having a multilayer polymeric film
US6101032A (en) 1994-04-06 2000-08-08 3M Innovative Properties Company Light fixture having a multilayer polymeric film
US6088163A (en) 1995-06-26 2000-07-11 3M Innovative Properties Company Metal-coated multilayer mirror
US6088067A (en) 1995-06-26 2000-07-11 3M Innovative Properties Company Liquid crystal display projection system using multilayer optical film polarizers
US6124971A (en) 1995-06-26 2000-09-26 3M Innovative Properties Company Transflective displays with reflective polarizing transflector
US6080467A (en) 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
US6210785B1 (en) 1995-06-26 2001-04-03 3M Innovative Properties Company High efficiency optical devices
US6641883B2 (en) 1995-06-26 2003-11-04 3M Innovative Properties Company High efficiency optical devices
US6018419A (en) 1995-06-26 2000-01-25 3M Intellectual Properties Company Diffuse reflectors
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US6737154B2 (en) 1995-06-26 2004-05-18 3M Innovative Properties Company Multilayer polymer film with additional coatings or layers
US6565982B1 (en) 1995-06-26 2003-05-20 3M Innovative Properties Company Transparent multilayer device
US5825542A (en) 1995-06-26 1998-10-20 Minnesota Mining And Manufacturing Company Diffusely reflecting multilayer polarizers and mirrors
US5831375A (en) 1995-08-11 1998-11-03 Minnesota Mining And Manufacturing Company Electroluminescent lamp using multilayer optical film
USRE37594E1 (en) 1996-03-22 2002-03-19 The University Of British Columbia Light guide employing multilayer optical film
US5976424A (en) 1996-07-31 1999-11-02 Minnesota Mining And Manufacturing Company Method for making multilayer optical films having thin optical layers
US6185039B1 (en) 1997-12-06 2001-02-06 3M Innovative Properties Co. Infrared selective reflective polarizing element
US7961393B2 (en) 2004-12-06 2011-06-14 Moxtek, Inc. Selectively absorptive wire-grid polarizer
US7800823B2 (en) 2004-12-06 2010-09-21 Moxtek, Inc. Polarization device to polarize and further control light
US7813039B2 (en) 2004-12-06 2010-10-12 Moxtek, Inc. Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid
US8027087B2 (en) 2004-12-06 2011-09-27 Moxtek, Inc. Multilayer wire-grid polarizer with off-set wire-grid and dielectric grid
US8755113B2 (en) 2006-08-31 2014-06-17 Moxtek, Inc. Durable, inorganic, absorptive, ultra-violet, grid polarizer
US8913321B2 (en) 2010-09-21 2014-12-16 Moxtek, Inc. Fine pitch grid polarizer
US8611007B2 (en) 2010-09-21 2013-12-17 Moxtek, Inc. Fine pitch wire grid polarizer
US8913320B2 (en) 2011-05-17 2014-12-16 Moxtek, Inc. Wire grid polarizer with bordered sections
US8873144B2 (en) 2011-05-17 2014-10-28 Moxtek, Inc. Wire grid polarizer with multiple functionality sections
US8922890B2 (en) 2012-03-21 2014-12-30 Moxtek, Inc. Polarizer edge rib modification
US9348076B2 (en) 2013-10-24 2016-05-24 Moxtek, Inc. Polarizer with variable inter-wire distance
US9354374B2 (en) 2013-10-24 2016-05-31 Moxtek, Inc. Polarizer with wire pair over rib
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