JPH0314570Y2 - - Google Patents
Info
- Publication number
- JPH0314570Y2 JPH0314570Y2 JP1986028952U JP2895286U JPH0314570Y2 JP H0314570 Y2 JPH0314570 Y2 JP H0314570Y2 JP 1986028952 U JP1986028952 U JP 1986028952U JP 2895286 U JP2895286 U JP 2895286U JP H0314570 Y2 JPH0314570 Y2 JP H0314570Y2
- Authority
- JP
- Japan
- Prior art keywords
- diameter portion
- shutter blade
- caulking
- medium
- small diameter
- 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.)
- Expired
Links
- 238000007598 dipping method Methods 0.000 claims 1
- 238000002788 crimping Methods 0.000 description 9
- 239000000463 material Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 208000018999 crinkle Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 210000003746 feather Anatomy 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
- Insertion Pins And Rivets (AREA)
- Diaphragms For Cameras (AREA)
- Shutters For Cameras (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、カメラ用シヤツタ羽根をかしめ結合
するための改良されたかしめ構造を有するカシメ
ピンに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a crimping pin having an improved crimping structure for crimping and connecting camera shutter blades.
ストロボ同調速度を上げるにはシヤツタ羽根の
より高速化が、またモータードライブ機構を内蔵
するにはシヤツタのセツト力量をより軽減するこ
とが必要で、このため近年においては、シヤツタ
羽根をより軽量化すべく、その材料にアルミやプ
ラスチイツクが使用されるようになつてきた。と
ころが、これらの素材は鉄に較べて強度が著しく
劣るため、この種の素材で作つたシヤツタ羽根を
例えば第３図に示したようなつば部ｅと大径部ｂ
と小径部ｃとからなる一般的なカシメピンを用い
てかしめ止めした場合、小径部ｃの拡がりによつ
て羽根のかしめ孔ｄ部分が押し拡げられたり、孔
ｄの周縁が潰れたりして、耐久性が損なわれてし
まうといつた不具合が生じる。
To increase the strobe synchronization speed, it is necessary to increase the speed of the shutter blade, and to incorporate a motor drive mechanism, it is necessary to further reduce the force required to set the shutter. For this reason, in recent years, efforts have been made to make the shutter blade even lighter. , aluminum and plastic have come to be used as materials. However, these materials are significantly inferior in strength to iron, so a shutter blade made of this type of material can be used, for example, with a collar part e and a large diameter part b, as shown in Figure 3.
When caulking is performed using a general caulking pin consisting of a small diameter portion c and a small diameter portion c, the expansion of the small diameter portion c may push the blade caulking hole d wide, or the periphery of the hole d may be crushed, resulting in poor durability. If this property is lost, problems will occur.
実開昭59−84529号公報及び実開昭60−115225
号公報には、かかる不具合を解消すべく、小径部
の肉厚を薄くしたりあるいは羽根の厚さより離れ
た位置の径部の周面に逃げ溝を設けるようにした
カシメピンが提案されているが、かかるカシメピ
ンを用いても、かしめによつて小径部が押圧によ
つてふくらみ、強度的に弱いシヤツタ羽根の場合
には、そのかしめ孔の周縁が応力を受け、変形を
生ずるといつた問題は依然として解消されない。 Utility Model Application No. 59-84529 and Utility Model Application No. 60-115225
In order to solve this problem, the publication proposes a caulking pin in which the wall thickness of the small diameter part is made thinner or an relief groove is provided on the circumference of the diameter part at a position farther than the thickness of the blade. Even if such a caulking pin is used, the small diameter portion bulges due to pressure due to caulking, and in the case of a weak shutter blade, the periphery of the caulking hole is subjected to stress and deformation. Still not resolved.
また、実開昭60−115225号公報に記載されたカ
シメピン４１の切り欠き部４１ｅは、シヤツタ羽
根が0.1ミリメートル程度の厚さである場合には、
僅少な幅であるため、機械加工が極めて困難であ
る。 Furthermore, the notch 41e of the caulking pin 41 described in Japanese Utility Model Publication No. 60-115225 is
Due to the small width, machining is extremely difficult.
さらに、実開昭53−79972号公報に記載された
かしめ構造は、分解の際にクラツチカバーを削ら
ないため、軸端部をリベツト孔よりも小径部とし
ているが、かしめのためにかしめ部（板材）を追
加して、間接的にかしめ結合しているから、しか
め部（板）の厚みを必要とし、シヤツタ羽根かし
めとしては、光もれの点およびスペース上から、
多くの問題がある。 Furthermore, in the caulking structure described in Japanese Utility Model Application No. 53-79972, the shaft end is made smaller in diameter than the rivet hole in order to avoid scraping the clutch cover during disassembly. Since it is indirectly caulked and joined by adding a plate material), the thickness of the crinkle part (plate) is required, and when caulking the shutter blade, from the point of light leakage and the space,
There are many problems.
即ち、複数のシヤツタ羽根を順次重ねてかしめ
結合する場合、各シヤツタ羽根の間に、それぞれ
かしめ部（板）が介在することになり、この隙間
から先もれが生じ、また、シヤツタ羽根全体が厚
くなりカメラ構成上好ましくない。 In other words, when a plurality of shutter blades are successively overlapped and caulked together, caulking parts (plates) are interposed between each shutter blade, leading to leakage from this gap, and the entire shutter blade is damaged. It becomes thicker, which is not desirable in terms of camera configuration.
本考案はかかる問題に鑑みてなされたもので、
その目的とするところは、かしめの際にかしめの
ための部品を追加することなく、また厚さを増加
することもなく、且つ板材のかしめ孔縁部に無用
な圧潰作用が生じることのない改良されたカシメ
ピンから成るかしめ構造を提供することにある。
This invention was made in view of this problem,
The objective is to improve the caulking process without adding additional parts for caulking, without increasing the thickness, and without creating unnecessary crushing effects on the edges of the caulking holes in the plate material. The object of the present invention is to provide a caulking structure made of caulking pins.
すなわち、本考案はかかる目的を達成すべく、
一端が大径部であるカシメピン本体に、結合すべ
きシヤツタ羽根に嵌合する中径部を一体的に形成
するとともに、上記シヤツタ羽根を受けとめる段
部から少なくとも上記シヤツタ羽根の板厚に相当
する距離を隔てた前記中径部の先端に薄肉の小径
部を設け、前記薄肉の潰し部を直接受け止める段
部を、前記中径部と前記小径部との境界部に形成
したカメラ用シヤツタ羽根のカシメピンにある。
In other words, the present invention aims to achieve this purpose.
A caulking pin body having a large diameter portion at one end is integrally formed with a medium diameter portion that fits into the shutter blade to be connected, and a distance from the stepped portion that receives the shutter blade at least corresponding to the plate thickness of the shutter blade. A caulking pin for a shutter blade for a camera, wherein a thin small-diameter portion is provided at the tip of the medium-diameter portion separated from the center, and a stepped portion for directly receiving the thin-walled crushed portion is formed at the boundary between the medium-diameter portion and the small-diameter portion. It is in.
そこで以下に本考案の詳細を図示した実施例に
基づいて説明する。
Therefore, the details of the present invention will be explained below based on illustrated embodiments.
第１図は本考案に係るカシメピン、つまり第２
図において基板上に枢支したアーム１０……の自
由端側にシヤツタ羽根１２……を回転可能に枢着
するためのカシメピンを示したものであつて、こ
のカシメピン１は、一端に設けたつば部２と、ア
ーム１０を枢支するための大径部３と、シヤツタ
羽根を受け止める段部４との間でシヤツタ羽根１
２をガイドするための中径部５と、シヤツタ羽根
１２をかしめ止めするための薄肉の小径部６とか
らなつており、また、上記した小径部６は、段部
４からシヤツタ羽根１２の板厚ｄに相当する距離
だけ離れた位置に形成されている。 Figure 1 shows the caulking pin according to the present invention, that is, the second
The figure shows a caulking pin for rotatably attaching the shutter blade 12 to the free end side of the arm 10 which is pivotally supported on the board. 2, a large diameter portion 3 for pivotally supporting the arm 10, and a stepped portion 4 for receiving the shutter blade.
2, and a thin small diameter part 6 for caulking the shutter blade 12, and the small diameter part 6 is formed from the stepped part 4 to the plate of the shutter blade 12. They are formed at positions separated by a distance corresponding to the thickness d.
したがつて、いまこのように形成されたカシメ
ピン１をアーム１０の孔１１及びシヤツタ羽根１
２のカシメ孔１３内に挿通した上、先端が円錐形
をなすたがね８をもつて小径部６をかしめると
（第１図イ）、薄肉の小径部６は、その部分に生じ
た応力により、外方に拡開し、段部４と段部７と
の間でシヤツタ羽根１２の孔１３の縁を上下から
強固に挾持固定する（第１図ロ）。 Therefore, the caulking pin 1 formed in this way is now inserted into the hole 11 of the arm 10 and the shutter blade 1.
When the small diameter portion 6 is inserted into the caulking hole 13 of No. 2 and the small diameter portion 6 is caulked with the chisel 8 having a conical tip (Fig. 1A), a thin small diameter portion 6 is formed in that portion. Due to the stress, it expands outward, and the edge of the hole 13 of the shutter blade 12 is firmly clamped and fixed from above and below between the stepped portion 4 and the stepped portion 7 (FIG. 1B).
なお上述した実施例では、段部４からシヤツタ
羽根１２の板厚ｄに相当する距離だけ離れた位置
を小径部６となるようにしたものであるが、板厚
ｄよりさらに離れた距離に小径部６を設けた場合
には、さらに余裕を持たせてシヤツタ羽根１２を
かしめ止めすることができる。 In the embodiment described above, the small diameter portion 6 is located at a distance corresponding to the plate thickness d of the shutter blade 12 from the stepped portion 4, but the small diameter portion 6 is located at a distance further away from the plate thickness d. When the portion 6 is provided, the shutter blade 12 can be caulked with more margin.
また上述した実施例は、アーム１２にシヤツタ
羽根１２をかしめ止めするものであるが、第４図
に示す如く、アームが不要な絞りを形成する羽根
１４に直接ピン１５をかしめ止めする場合にも、
羽根１４の変形を僅少に押えることができる。 Further, in the embodiment described above, the shutter blade 12 is caulked to the arm 12, but as shown in FIG. ,
Deformation of the blade 14 can be suppressed slightly.
第５図は、第１図のカシメピンの中心孔を円錐
状Ａに形成した例である。 FIG. 5 shows an example in which the center hole of the caulking pin shown in FIG. 1 is formed into a conical shape A.
以上述べたように本考案によれば、大径部上に
段部を介してシヤツタ羽根を結合する中径部を形
成するとともに、この段部から少なくとも支承す
べき板部材の板厚に相当する距離を隔てた小径部
に段部を形成したので、２枚の板部材の孔にこの
カシメピンを挿通した上、たがねをもつて小径部
をかしめれば、小径部はその部分に生じた応力に
より外方に拡開させるので、ガイドのための中径
部５の変形（ふくらみ）を僅少に押え、また段部
７でその潰し部の押圧力を受けることができ、板
部材のかしめ孔部分に何らの悪影響をも及ぼすこ
となくこの部分を強固にかしめ止めした耐久性に
優れたシヤツタ羽根を容易かつ正確に構成するこ
とができる。
As described above, according to the present invention, a medium-diameter part is formed on the large-diameter part to which the shutter blade is connected via a step, and at least the thickness of the plate member to be supported is formed from this step. Since a stepped part was formed in the small diameter part separated by a distance, by inserting this caulking pin into the hole of the two plate members and caulking the small diameter part with a chisel, the small diameter part was formed at that part. Since it expands outward due to stress, the deformation (bulge) of the medium-diameter portion 5 for the guide can be suppressed slightly, and the stepped portion 7 can receive the pressing force of the crushed portion, thereby forming the caulking hole of the plate member. It is possible to easily and accurately construct a highly durable shutter blade in which the portion is firmly caulked without any adverse effect on the portion.
第１図イ，ロはカシメの前後の状態をもつて示
した本考案に係るカシメピンの断面図、第２図は
上記のカシメピンをもつて作られたカメラ用シヤ
ツタの概要図、第３図イ，ロはかしめの前後の状
態をもつて示した従来のカシメピンの断面図、第
４図は第２の実施例のカシメピンの断面図、第５
図は第３の実施例のカシメピンの断面図である。
１……カシメピン、３……大径部、４……段
部、５……小径部、６……溝、１０……アーム、
１２……シヤツタ羽根。
Figures 1A and 1B are cross-sectional views of the crimping pin according to the present invention shown before and after crimping, Figure 2 is a schematic diagram of a camera shutter made with the above crimping pin, and Figure 3 is , B are sectional views of a conventional crimping pin shown before and after crimping, FIG. 4 is a sectional view of the crimping pin of the second embodiment, and 5.
The figure is a cross-sectional view of a caulking pin according to a third embodiment. 1... Caulking pin, 3... Large diameter part, 4... Step part, 5... Small diameter part, 6... Groove, 10... Arm,
12...Shyatsuta feather.
Claims (1)
べきシヤツタ羽根に嵌合する中径部を一体的に形
成するとともに、上記シヤツタ羽根の受け止める
段部から少なくとも上記シヤツタ羽根の板厚に相
当する距離を隔てた前記中径部の先端に薄肉の小
径部を設け、前記薄肉の漬し部を直接受め止める
段部を前記中径部と前記小径部との境界部に形成
したことを特徴とするカメラ用シヤツタ羽根のカ
シメピン。 A caulking pin body having a large diameter portion at one end is integrally formed with a medium diameter portion that fits into the shutter blade to be joined, and a distance corresponding to at least the plate thickness of the shutter blade from the stepped portion that is received by the shutter blade. A thin small-diameter portion is provided at the tip of the medium-diameter portion that is separated from the medium-diameter portion, and a stepped portion that directly receives the thin-walled dipping portion is formed at the boundary between the medium-diameter portion and the small-diameter portion. A clinching pin for shutter blades for cameras.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028952U JPH0314570Y2 (en) | 1986-02-28 | 1986-02-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986028952U JPH0314570Y2 (en) | 1986-02-28 | 1986-02-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62141909U JPS62141909U (en) | 1987-09-08 |
| JPH0314570Y2 true JPH0314570Y2 (en) | 1991-04-02 |
Family
ID=30832392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986028952U Expired JPH0314570Y2 (en) | 1986-02-28 | 1986-02-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0314570Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0521060Y2 (en) * | 1986-03-20 | 1993-05-31 | ||
| JP5176508B2 (en) * | 2007-12-04 | 2013-04-03 | 株式会社リコー | Fastening structure, blade structure, developing device, and image forming apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5379972U (en) * | 1976-12-06 | 1978-07-03 |
-
1986
- 1986-02-28 JP JP1986028952U patent/JPH0314570Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62141909U (en) | 1987-09-08 |
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