JPH06198735A - Method for embossing fiber reinforced plastic sheet and manufacture of fiber reinforced plastic shutter blade for focal plane shutter - Google Patents
Method for embossing fiber reinforced plastic sheet and manufacture of fiber reinforced plastic shutter blade for focal plane shutterInfo
- Publication number
- JPH06198735A JPH06198735A JP34838292A JP34838292A JPH06198735A JP H06198735 A JPH06198735 A JP H06198735A JP 34838292 A JP34838292 A JP 34838292A JP 34838292 A JP34838292 A JP 34838292A JP H06198735 A JPH06198735 A JP H06198735A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- prepreg sheet
- reinforced plastic
- fiber
- fiber reinforced
- 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
Landscapes
- Diaphragms For Cameras (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、例えばフォーカルカメ
ラのシャッタ羽根に使用する繊維強化プラスチックシー
トのエンボス加工法及びフォーカルプレンシャッタ用の
繊維強化プラスチック製シャッタ羽根の製造方法に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embossing method for a fiber-reinforced plastic sheet used for a shutter blade of a focal camera and a method for manufacturing a fiber-reinforced plastic shutter blade for a focal plane shutter.
【０００２】[0002]
【従来の技術】最近のカメラ用シャッタは、シャッタの
撮影領域を上げる等のため、シャッタ速度の高速化が行
われており、それに伴ないシャッタ羽根の材料を従来使
用されていたジュラルミン等の金属から軽量かつ高剛性
の繊維強化プラスチック材に移行しつつある。2. Description of the Related Art In recent camera shutters, the shutter speed has been increased in order to increase the photographing area of the shutter, and accordingly, the material of the shutter blade has been made of metal such as duralumin which has been conventionally used. Is shifting from lightweight to highly rigid fiber-reinforced plastic materials.
【０００３】図２は、カメラのフォーカルプレンシャッ
タの一例を示すもので、所定形状に形成されたシャッタ
羽根１１〜１４は、作動アーム１５〜１７とそれぞれ連
結ピン１８…を介して移動自在に連結してある。シャッ
タ羽根１１〜１４は、カメラのレリーズボタンを押すこ
とにより回転部１９を回転させると、平行リンク機構に
よって平行移動し、シャッタの開閉動作が行われる構成
になっている。ところで、作動アームとシャッタ羽根と
は、上記したように連結ピン１８を介して連結してある
が、両者が重なり合うと、シャッタの開閉運動をする際
の摩擦抵抗が大きくなり、シャッタスピードの高速化の
障害となる。FIG. 2 shows an example of a focal plane shutter of a camera. Shutter blades 11 to 14 formed in a predetermined shape are movably connected to actuating arms 15 to 17 via connecting pins 18 ... I am doing it. The shutter blades 11 to 14 are configured such that when the release button of the camera is pressed to rotate the rotating portion 19, the shutter blades 11 to 14 are moved in parallel by the parallel link mechanism to open and close the shutter. By the way, the operating arm and the shutter blade are connected via the connecting pin 18 as described above. However, when they are overlapped with each other, the frictional resistance at the time of opening and closing the shutter is increased and the shutter speed is increased. Becomes an obstacle.
【０００４】そこでこれを避けるために、図３に示すよ
うに、例えばシャッタ羽根１１の連結ピン１８を設ける
部分にエンボス加工を施してエンボス形状部１１ａを形
成し、このエンボス形状部の中心に連結孔１１ｂを設け
ている。この連結孔１１ｂに連結ピン１８を挿着し、連
結ピンの先端部をかしめて、エンボス形状部１１ａを固
着させるようにしている。連結ピン１８の首下とシャッ
タ羽根１１の上面との間には、エンボス形状部１１ａに
よって若干の間隔ができる。したがって、連結ピン１８
の首下とシャッタ羽根１１の上面との間に遊嵌されたア
ーム１５とシャッタ羽根１１との間に若干の間隙ｇを設
けて、シャッタ作動時の摩擦力の発生を抑えるようにし
てある。In order to avoid this, as shown in FIG. 3, for example, a portion of the shutter blade 11 where the connecting pin 18 is provided is embossed to form an embossed portion 11a, which is connected to the center of this embossed portion. A hole 11b is provided. The connecting pin 18 is inserted into the connecting hole 11b, and the tip of the connecting pin is caulked to fix the embossed portion 11a. A small gap is formed between the neck of the connecting pin 18 and the upper surface of the shutter blade 11 by the embossed portion 11a. Therefore, the connecting pin 18
A slight gap g is provided between the shutter blade 11 and the arm 15 loosely fitted between the lower part of the neck and the upper surface of the shutter blade 11 to suppress the generation of frictional force during shutter operation.
【０００５】シャッタ羽根材として繊維強化プラスチッ
クを採用する場合には、エンボス形状部１１ａは、繊維
強化プラスチックの原材料である繊維強化プリプレグシ
ートを所定温度に加熱し、これを熱硬化させてから外形
の打ち抜き加工とともに平板面にエンボス形状部を形成
している。When fiber-reinforced plastic is used as the shutter blade material, the embossed portion 11a heats the fiber-reinforced prepreg sheet, which is a raw material of the fiber-reinforced plastic, to a predetermined temperature, and heat-cures the fiber-reinforced prepreg sheet. An embossed portion is formed on the flat plate surface along with punching.
【０００６】[0006]
【発明が解決しようとする課題】シャッタ羽根として繊
維強化プラスチックシートを用いる場合には、繊維強化
プラスチックシートは、プリプレグ状態で多層に積層さ
れるか、または単層のままで熱プレスによって加熱しな
がら加圧し、熱硬化させるとともに平面シート状に成形
するもので、補強繊維と塑性変形しないプラスチックと
の位置が硬化した状態で固定されているため、これを塑
性変形させるのが困難になっている。すなわち、熱硬化
した繊維強化プラスチックシートに曲率半径の小さいエ
ンボス形状部を形成すると、局面部に亀裂が生じたり、
曲率半径を大きくし加工しても平板面の部分にうねりを
生じたりして、シャッタ羽根としての用途の障害になっ
ている。When a fiber-reinforced plastic sheet is used as the shutter blade, the fiber-reinforced plastic sheet is laminated in multiple layers in a prepreg state, or is heated as a single layer by hot pressing. It is pressed, heat-cured, and molded into a flat sheet shape. Since the positions of the reinforcing fiber and the plastic not plastically deformed are fixed in a hardened state, it is difficult to plastically deform this. That is, when an embossed portion having a small radius of curvature is formed on the heat-cured fiber-reinforced plastic sheet, cracks may occur at the stage portion,
Even if the radius of curvature is increased and processed, waviness is generated in the flat surface portion, which is an obstacle to the application as a shutter blade.
【０００７】そこで本発明の目的は、繊維強化プラスチ
ックシートに亀裂やうねりを生じさせることなく所望の
エンボス形状部を形成できるようにして、シャッタ羽根
等の開閉動作の高速化を実現することにある。Therefore, an object of the present invention is to realize a high-speed opening / closing operation of shutter blades and the like so that a desired embossed portion can be formed without causing cracks or undulations in a fiber reinforced plastic sheet. .
【０００８】[0008]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明における繊維強化プラスチックシートのエ
ンボス加工法は、一方にエンボス加工用の突部を有し、
他方にエンボス加工用の凹部を有する１対の型板を備え
た熱プレスの金型に、単層または複数層に積層された繊
維強化プリプレグシートを挟持し、金型によりプリプレ
グシートを所定圧力以下の圧力で加圧し、プリプレグシ
ートを加圧した金型をプリプレグシートの熱硬化温度以
下の所定温度で所定時間加熱保持して半硬化状態のまま
のプリプレグシートの平板面にエンボス形状部を形成
し、エンボス形状部が形成されたプリプレグシートを、
このシートの熱硬化温度以上の所定温度に所定時間加熱
して熱硬化させてエンボス形状部を有する繊維強化プラ
スチックシートを形成するものである。In order to achieve the above object, an embossing method for a fiber reinforced plastic sheet according to the present invention has a protrusion for embossing on one side,
The fiber-reinforced prepreg sheet laminated in a single layer or a plurality of layers is sandwiched by a mold for hot pressing having a pair of templates having a recess for embossing on the other side, and the prepreg sheet is pressed by the mold at a predetermined pressure or less. The pressure applied to the prepreg sheet is applied to the mold, and the mold is heated and held at a temperature not higher than the thermosetting temperature of the prepreg sheet for a predetermined time to form an embossed portion on the flat surface of the prepreg sheet in the semi-cured state. , A prepreg sheet with an embossed part,
This sheet is heated to a predetermined temperature higher than the thermosetting temperature for a predetermined time to be thermoset to form a fiber reinforced plastic sheet having an embossed portion.
【０００９】また本発明におけるフォーカルプレンシャ
ッタ用の繊維強化プラスチック製シャッタ羽根の製造方
法は、一方にエンボス加工用の突部を有し、他方にエン
ボス加工用の凹部を有する１対の型板を備えた熱プレス
の金型に、単層または複数層に積層された繊維強化プリ
プレグシートを挟持し、金型によりプリプレグシートを
所定圧力以下の圧力で加圧し、プリプレグシートを加圧
した金型をプリプレグシートの熱硬化温度以下の所定温
度で所定時間加熱保持して半硬化状態のままのプリプレ
グシートの平板面にエンボス形状部を形成し、エンボス
形状部が形成されたプリプレグシートを、このシートの
熱硬化温度以上の所定温度に所定時間加熱して熱硬化さ
せてエンボス形状部を設けた繊維強化プラスチックシー
トを形成し、この繊維強化プラスチックシートから所望
のシャッタ羽根形状に形成するものである。In the method of manufacturing a fiber-reinforced plastic shutter blade for a focal-plane shutter according to the present invention, a pair of templates having a protrusion for embossing on one side and a recess for embossing on the other side. A fiber reinforced prepreg sheet laminated in a single layer or a plurality of layers is sandwiched in a die of a hot press provided, and the prepreg sheet is pressed by the die at a pressure of a predetermined pressure or less, and a die in which the prepreg sheet is pressed is pressed. An embossed shape portion is formed on the flat surface of the prepreg sheet that is in a semi-cured state by heating and holding at a predetermined temperature equal to or lower than the thermosetting temperature of the prepreg sheet, and the prepreg sheet having the embossed shape portion is formed. The fiber-reinforced plastic sheet provided with the embossed portion is formed by heating at a predetermined temperature higher than the heat curing temperature for a predetermined time to heat-cure it. And forms the desired shutter blade shape from a fiber-reinforced plastic sheet.
【００１０】[0010]
【実施例】繊維強化プラスチックシートの素材となる繊
維強化プリプレグシートは、炭素繊維からなる複数本の
横糸と炭素繊維からなる複数本の縦糸との方向をほぼ直
交するように織り上げられた織物とし、この織物に例え
ば、エポキシや不飽和ポリエステル等の熱硬化樹脂から
なるマトリクス樹脂が含浸されて形成されている。図示
しないが、繊維強化プリプレグシートは３層に積層され
ており、マトリクス樹脂の両表面には、黒色系顔料が混
合されたカーボンブラック，２硫化モリブデン，フッ素
等の固体潤滑剤からなる潤滑性塗料が塗布されており、
潤滑性塗料を含むシートの厚さは、１００μｍ以内とな
っている。Example A fiber reinforced prepreg sheet, which is a material for a fiber reinforced plastic sheet, is a woven fabric woven so that the directions of a plurality of weft yarns of carbon fibers and a plurality of warp yarns of carbon fibers are substantially orthogonal to each other. The woven fabric is formed by impregnating a matrix resin made of a thermosetting resin such as epoxy or unsaturated polyester. Although not shown, the fiber reinforced prepreg sheet is laminated in three layers, and a lubricant coating composed of a solid lubricant such as carbon black mixed with a black pigment, molybdenum disulfide, or fluorine on both surfaces of the matrix resin. Has been applied,
The thickness of the sheet containing the lubricating coating is within 100 μm.
【００１１】図１（ａ）に示すように、上記した繊維強
化プリプレグシート１を熱プレス（図示略）の金型２の
間に入れて挟持可能に位置させる。金型２を構成する一
方の型板３には、エンボス加工用の突部３ａが形成して
あり、他方の型板４には、突部３ａに対応する位置にエ
ンボス加工用の凹部４ａが形成してある。エンボス形状
はプリプレグシート１が突部３ａと凹部４ａとに挟持さ
れる際に炭素繊維に加わる加工応力が炭素繊維の弾性限
界内にあるように形成してある。両型板３，４は、予め
図示しない電源及びヒータによって加熱可能に形成され
ている。As shown in FIG. 1 (a), the fiber reinforced prepreg sheet 1 described above is placed between molds 2 of a hot press (not shown) so as to be sandwiched. One mold plate 3 constituting the mold 2 is formed with an embossing projection 3a, and the other mold plate 4 is provided with an embossing recess 4a at a position corresponding to the projection 3a. Has been formed. The embossed shape is formed so that the processing stress applied to the carbon fiber when the prepreg sheet 1 is sandwiched between the protrusion 3a and the recess 4a is within the elastic limit of the carbon fiber. Both mold plates 3 and 4 are formed in advance so that they can be heated by a power source and a heater (not shown).
【００１２】プリプレグシート１にエンボス形状部１ａ
を形成するには、図１（ｂ）に示すように、両型板３，
４にプリプレグシート１を挟持し、２kgf/cm2 以下の低
圧力をかける。次に、両型板３，４を加熱し、プリプレ
グシート１の熱硬化温度以下の温度範囲７０〜９０℃で
１０〜３０分間加熱保持し、平板面の特定個所にエンボ
ス形状部１ａを形成する。加熱前のプリプレグシート１
は、塑性変形能力を有するので、両型板３，４によって
圧縮されると、３層のプリプレグシートがマトリクス樹
脂や潤滑性塗料とともに圧縮され、同時にエンボス加工
用の突部３ａと凹部４ａとによって平板面にエンボス形
状部１ａが形成される。温度範囲７０〜９０℃で１０〜
３０分間加熱保持することによって、プリプレグシート
１のマトリクス樹脂は常温の状態よりも粘度が下がり、
柔らかくなり、プリプレグシート１がシート状に形成さ
れた際のうねりがなくなり平板部が平滑となるとともに
炭素繊維はプリプレグシート１がシート状に形成された
際に生じた残留歪が取り除かれる。The prepreg sheet 1 has an embossed portion 1a.
To form the two mold plates 3, as shown in FIG.
Hold the prepreg sheet 1 between 4 and apply a low pressure of 2 kgf / cm 2 or less. Next, the both mold plates 3 and 4 are heated and heated and held in a temperature range of 70 to 90 ° C. which is not higher than the thermosetting temperature of the prepreg sheet 1 for 10 to 30 minutes to form the embossed portion 1a at a specific portion of the flat plate surface. . Prepreg sheet 1 before heating
Has a plastic deformation capability, so that when it is compressed by both mold plates 3 and 4, the three-layer prepreg sheet is compressed together with the matrix resin and the lubricating paint, and at the same time, by the embossing projection 3a and recess 4a. The embossed portion 1a is formed on the flat surface. 10 in the temperature range 70-90 ° C
By heating and holding for 30 minutes, the viscosity of the matrix resin of the prepreg sheet 1 becomes lower than that at room temperature,
When the prepreg sheet 1 is formed into a sheet shape, the prepreg sheet 1 becomes soft, the waviness disappears, the flat plate portion becomes smooth, and the carbon fiber removes the residual strain generated when the prepreg sheet 1 is formed into a sheet shape.
【００１３】次に、エンボス形状部１ａが形成されたプ
リプレグシート１を、マトリクス樹脂の熱硬化温度以上
の所定温度（１３０℃）で１〜２時間加熱し、プリプレ
グシート１を硬化させ、平板部とエンボス形状部１ａと
を有する繊維強化プラスチックシートを形成する。この
ようにして形成された繊維強化プラスチックシートは、
温度範囲７０〜９０°Ｃで１０〜３０分間加熱保持され
て、平板部はうねりが取り除かれて平滑となっており、
炭素繊維は残留歪が取り除かれている状態で硬化させた
ので、平板部が平滑に形成できかつ炭素繊維の残留歪も
なくエンボス形状部に亀裂が生じることもない。Next, the prepreg sheet 1 on which the embossed portion 1a is formed is heated at a predetermined temperature (130 ° C.) higher than the thermosetting temperature of the matrix resin for 1 to 2 hours to cure the prepreg sheet 1 and the flat plate portion. A fiber reinforced plastic sheet having the embossed shape portion 1a is formed. The fiber reinforced plastic sheet thus formed is
It is heated and held in the temperature range of 70 to 90 ° C for 10 to 30 minutes, and the flat part is smoothed by removing the undulations.
Since the carbon fiber is cured in a state where the residual strain is removed, the flat plate portion can be formed smoothly, the carbon fiber does not have residual strain, and the embossed portion does not crack.
【００１４】次に、このように形成されたエンボス形状
部を有する硬化状態の繊維強化プラスチックシートを、
プレス打ち抜き加工で、エンボス形状部１ａの中心に連
結孔を設けるとともに、エンボス形状部１ａを有する所
望のシャッタ羽根の形状になるように外形を切り落と
し、フォーカルプレンシャッタ用の繊維強化プラスチッ
ク製シャッタ羽根が形成される。フォーカルプレンシャ
ッタ用の繊維強化プラスチック製シャッタ羽根は、種々
の形状に加工可能であり、それぞれの用途に適したもの
に形成される。Next, a cured fiber-reinforced plastic sheet having the embossed shape portion thus formed is
By press punching, a connecting hole is provided at the center of the embossed shape portion 1a, and the outer shape is cut off so as to have a desired shutter blade shape having the embossed shape portion 1a. It is formed. The fiber-reinforced plastic shutter blade for the focal plane shutter can be processed into various shapes, and is formed into one suitable for each application.
【００１５】なお、本発明は、プリプレグシートを３層
とし、炭素繊維の方向をほぼ直交するように織り上げら
れた織物にしたものについて説明しているが、炭素繊維
を複数枚積層し、この重ね合わせるシートの炭素繊維の
方向を互いに直交させても良いことは言うまでもない。
さらに、これらを２層または単層とした場合にも適用可
能である。また、用途もカメラのシャッタ羽根に限ら
ず、繊維強化プラスチックシートにエンボス加工を施す
場合一般に適用可能である。In the present invention, the prepreg sheet has three layers, and the woven fabric is woven so that the directions of the carbon fibers are substantially orthogonal to each other. It goes without saying that the directions of the carbon fibers of the sheets to be combined may be made to be orthogonal to each other.
Further, it is also applicable to the case where these are two layers or a single layer. Further, the application is not limited to the shutter blades of the camera, and is generally applicable when embossing the fiber reinforced plastic sheet.
【００１６】[0016]
【本発明の効果】以上説明したように、本発明によれ
ば、繊維強化プリプレグシートに熱硬化処理を施す前
に、熱プレスによって繊維強化プリプレグシートの熱硬
化温度以下の所定温度で所定時間加熱保持して半硬化状
態のままのエンボス形状部を形成してから、本来の熱硬
化処理を施すものであるため、エンボス形状部に亀裂が
生じたり、平板部にうねりが生じたりしない繊維強化プ
ラスチックシートを得ることができ、シャッタ羽根等の
機能向上に寄与する。As described above, according to the present invention, before the fiber-reinforced prepreg sheet is subjected to the heat-curing treatment, it is heated by a hot press at a predetermined temperature below the heat-curing temperature of the fiber-reinforced prepreg sheet for a predetermined time. Fiber reinforced plastic that does not cause cracks in the embossed part or waviness in the flat plate part because the original thermosetting process is performed after holding and forming the embossed part in the semi-cured state. A sheet can be obtained, which contributes to improving the functions of the shutter blades and the like.
【図１】（ａ）は型板間にプリプレグシートを挿入した
状態を示す説明図、（ｂ）は型板間にプリプレグシート
を挟持した状態を示す説明図である。FIG. 1A is an explanatory diagram showing a state where a prepreg sheet is inserted between mold plates, and FIG. 1B is an explanatory diagram showing a state where a prepreg sheet is sandwiched between mold plates.
【図２】カメラのフォーカルプレンシャッタの構成を示
す平面図である。FIG. 2 is a plan view showing a configuration of a focal plane shutter of a camera.
【図３】シャッタ羽根とアームとの連結部を示す拡大断
面図である。FIG. 3 is an enlarged cross-sectional view showing a connecting portion between a shutter blade and an arm.
１ 繊維強化プリプレグシート １ａ エンボス形状部 ２ 金型 ３，４ 型板 ３ａ 突部 ４ａ 凹部 1 Fiber Reinforced Prepreg Sheet 1a Embossed Shaped Part 2 Mold 3,4 Template 3a Projection 4a Recess
Claims (2)
方にエンボス加工用の凹部を有する１対の型板を備えた
熱プレスの金型に、単層または複数層に積層された繊維
強化プリプレグシートを挟持し、 上記金型により上記プリプレグシートを所定圧力以下の
圧力で加圧し、 上記プリプレグシートを加圧した上記金型を上記プリプ
レグシートの熱硬化温度以下の所定温度で所定時間加熱
保持して半硬化状態のままの上記プリプレグシートの平
板面にエンボス形状部を形成し、 上記エンボス形状部が形成された上記プリプレグシート
を、このシートの熱硬化温度以上の所定温度に所定時間
加熱して熱硬化させてエンボス形状部を有する繊維強化
プラスチックシートを形成することを特徴とする繊維強
化プラスチックシートのエンボス加工法。1. A single layer or a plurality of layers are laminated on a mold of a hot press having a pair of template plates each having a protrusion for embossing on one side and a recess for embossing on the other side. The fiber reinforced prepreg sheet is sandwiched, and the prepreg sheet is pressed by the mold at a pressure of a predetermined pressure or lower, and the mold that presses the prepreg sheet is pressed at a predetermined temperature of a thermosetting temperature or lower of the prepreg sheet for a predetermined time. An embossed portion is formed on the flat plate surface of the prepreg sheet that is heated and held in a semi-cured state, and the prepreg sheet on which the embossed portion is formed is heated to a predetermined temperature equal to or higher than the thermosetting temperature of the sheet for a predetermined time. An embossing method for a fiber-reinforced plastic sheet, which comprises heating and thermosetting to form a fiber-reinforced plastic sheet having an embossed shape portion.
方にエンボス加工用の凹部を有する１対の型板を備えた
熱プレスの金型に、単層または複数層に積層された繊維
強化プリプレグシートを挟持し、 上記金型により上記プリプレグシートを所定圧力以下の
圧力で加圧し、 上記プリプレグシートを加圧した上記金型を上記プリプ
レグシートの熱硬化温度以下の所定温度で所定時間加熱
保持して半硬化状態のままの上記プリプレグシートの平
板面にエンボス形状部を形成し、 上記エンボス形状部が形成された上記プリプレグシート
を、このシートの熱硬化温度以上の所定温度に所定時間
加熱して熱硬化させてエンボス形状部を設けた繊維強化
プラスチックシートを形成し、 上記繊維強化プラスチックシートから所望のシャッタ羽
根形状に形成することを特徴とするフォーカルプレンシ
ャッタ用の繊維強化プラスチック製シャッタ羽根の製造
方法。2. A single layer or a plurality of layers are laminated on a mold of a hot press having a pair of template plates each having a protrusion for embossing on one side and a recess for embossing on the other side. The fiber reinforced prepreg sheet is sandwiched, and the prepreg sheet is pressed by the mold at a pressure of a predetermined pressure or lower, and the mold that presses the prepreg sheet is pressed at a predetermined temperature of a thermosetting temperature or lower of the prepreg sheet for a predetermined time. An embossed portion is formed on the flat plate surface of the prepreg sheet that is heated and held in a semi-cured state, and the prepreg sheet on which the embossed portion is formed is heated to a predetermined temperature equal to or higher than the thermosetting temperature of the sheet for a predetermined time. A fiber-reinforced plastic sheet provided with an embossed portion is formed by heating and heat-curing, and a desired shutter blade shape is formed from the fiber-reinforced plastic sheet. Method for producing a fiber reinforced plastic shutter blade for focal plane shutter, characterized in Rukoto.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34838292A JPH06198735A (en) | 1992-12-28 | 1992-12-28 | Method for embossing fiber reinforced plastic sheet and manufacture of fiber reinforced plastic shutter blade for focal plane shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34838292A JPH06198735A (en) | 1992-12-28 | 1992-12-28 | Method for embossing fiber reinforced plastic sheet and manufacture of fiber reinforced plastic shutter blade for focal plane shutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06198735A true JPH06198735A (en) | 1994-07-19 |
Family
ID=18396652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34838292A Pending JPH06198735A (en) | 1992-12-28 | 1992-12-28 | Method for embossing fiber reinforced plastic sheet and manufacture of fiber reinforced plastic shutter blade for focal plane shutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06198735A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011215589A (en) * | 2010-12-03 | 2011-10-27 | Nidec Copal Corp | Light shielding blade for optical apparatus |
| JP2011223920A (en) * | 2010-04-19 | 2011-11-10 | Globeride Inc | Fishing line guide and method for producing the same |
| CN114619331A (en) * | 2022-05-12 | 2022-06-14 | 海尼肯智能技术成都有限公司 | Dead pixel staggered layer polishing equipment for composite material blade |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555828A (en) * | 1978-10-20 | 1980-04-24 | Central Glass Co Ltd | Forming method for rugged pattern on surface of glass fiber-reinforced resin material |
| JPS58140216A (en) * | 1982-02-15 | 1983-08-19 | Matsushita Electric Works Ltd | Boring of molding |
-
1992
- 1992-12-28 JP JP34838292A patent/JPH06198735A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5555828A (en) * | 1978-10-20 | 1980-04-24 | Central Glass Co Ltd | Forming method for rugged pattern on surface of glass fiber-reinforced resin material |
| JPS58140216A (en) * | 1982-02-15 | 1983-08-19 | Matsushita Electric Works Ltd | Boring of molding |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011223920A (en) * | 2010-04-19 | 2011-11-10 | Globeride Inc | Fishing line guide and method for producing the same |
| JP2011215589A (en) * | 2010-12-03 | 2011-10-27 | Nidec Copal Corp | Light shielding blade for optical apparatus |
| CN114619331A (en) * | 2022-05-12 | 2022-06-14 | 海尼肯智能技术成都有限公司 | Dead pixel staggered layer polishing equipment for composite material blade |
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