JPS6184635A - Lens mount support of camera - Google Patents

Lens mount support of camera

Info

Publication number
JPS6184635A
JPS6184635A JP20738084A JP20738084A JPS6184635A JP S6184635 A JPS6184635 A JP S6184635A JP 20738084 A JP20738084 A JP 20738084A JP 20738084 A JP20738084 A JP 20738084A JP S6184635 A JPS6184635 A JP S6184635A
Authority
JP
Japan
Prior art keywords
lens mount
plate
support
lens
camera
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
Application number
JP20738084A
Other languages
Japanese (ja)
Inventor
Masao Yokoyama
正雄 横山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP20738084A priority Critical patent/JPS6184635A/en
Publication of JPS6184635A publication Critical patent/JPS6184635A/en
Pending legal-status Critical Current

Links

Landscapes

  • Camera Bodies And Camera Details Or Accessories (AREA)
  • Structure And Mechanism Of Cameras (AREA)

Abstract

PURPOSE:To improve strength and precision by providing one plate material formed by press work, and providing plane parts which form a lens mount plate fitting surface and a camera body fitting surface and a step part which connects both plane parts together. CONSTITUTION:The lens mount support 1 consists of the plane part 2 which forms the mount plate fitting surface, plane part 3 which forms the camera body fitting surface, and step part 4 which connects both plane parts 2 and 3 together, and an iron plate is pressed and nitrified. This support 1 is fitted to the front surface of a camera body 6 by clamping screws in screw holes a1-a4 formed in the plate part 3. The lens mount plate 5 is fitted to the front plane part 2 of the support 1, a mirror box 7 is fitted to the rear surface of the support 1, and a lens is fixed with the bayonet claw of a lens mount plate 5 and fitted to the camera. The lens mount support 1 is made of one plate material and drawn into stepped structure, so it has sufficient strength.

Description

【発明の詳細な説明】 〔産業−1−の利用分野〕 本発明はレンズZ換式力/うにおけるレンズマウント支
持体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Application in Industry-1-] The present invention relates to a lens mount support in a Z-type lens converter.

〔従来の技術〕[Conventional technology]

一眼し7カメラ等のレンズ交換式カメラでは、カメラ1
11j而に設けられたバヨネット或いはネノ一式のレン
ズマウントに交換レンズをネノ込みロックするように構
成されている。レンズの交換取付けに際し、レンズの位
置、丸軸はフィルム面に対し常に正確に保たれなければ
ならず、このため、カメラ側に設けられたレンズマウン
トはカメラ本体に強1.’ilに取イ・1けられ、多次
にわたるレンズの着脱によっても動いたり、変形したり
してはならな−1。
For interchangeable lens cameras such as single-lens 7 cameras, camera 1
The interchangeable lens is configured to be inserted into and locked into the bayonet or lens mount provided at the lens 11j. When replacing and installing a lens, the position of the lens and the round axis must always be maintained accurately relative to the film surface.For this reason, the lens mount provided on the camera side must be attached to the camera body. It must not move or deform even when the lens is attached and detached in multiple stages.

レンズマウントは通常カメラ本体前面にレンズマウント
支持体を取付け、該支持体前面にバヨネット或いはネジ
を有するマウント板を取付けて構成されており、レンズ
マウント支持体の&側のカメラ本体内部には可動ミラー
の取付けられるミラーボックスが位置する。
A lens mount usually consists of a lens mount support attached to the front of the camera body, a mount plate with a bayonet or screws attached to the front of the support, and a movable mirror inside the camera body on the & side of the lens mount support. The mirror box to which it is attached is located.

1−記のような構造のレンズマウントにおいてレンXの
カメラ本体に対する取付位置を正確に保つためには、レ
ンズマウント支持体は光分な精度をもって成型された、
高い強度を有するものであることが心変である。
1- In order to accurately maintain the mounting position of Len
The important thing is that it has high strength.

こうした条件を充たすものとして従来レンズマウント支
持体はグイキャスト法によって鋳造された金属鋳物によ
って作られていた。
Conventionally, lens mount supports satisfying these conditions have been made of metal castings cast by the Guicasting method.

〔発明が解決しようとする1川題、ψ;〕グイキ計スト
法で1乍成されたレンズマウント支持体は充分の精度、
強度を有するものの加圧鋳造等の複雑な工程を要し、更
に鋳造後8!械的な仕上加工を要するなど高い価格のも
のとならざるを得・ なかった。また鋳造品には肉厚を
減するにも限界がありカメラのコンパクト化の支障とな
る面も多かった。
[One problem to be solved by the invention, ψ;] The lens mount support made by the Guiki measurement method has sufficient accuracy.
Although it has strength, it requires complicated processes such as pressure casting, and it takes 8! It had no choice but to be expensive as it required mechanical finishing. Furthermore, there is a limit to how much wall thickness can be reduced with cast products, which often poses an obstacle to making cameras more compact.

本発明はより簡単な工程で作成し得る、安価で且−】充
分な強度、精度を有し、更にカメラのコンパクト化にも
適したレンズマウント支持体を提供しようとするもので
ある。
An object of the present invention is to provide a lens mount support that can be produced through a simpler process, is inexpensive, has sufficient strength and precision, and is also suitable for making cameras more compact.

〔問題点を解決するための手段〕[Means for solving problems]

前記の問題点はプレス加工によって成型された一枚の板
材より成る、レンズマウント板取付面、カメラ本体取付
面をそれぞれ形成する平板部と両羽板部をつなぐ段部を
有するレンズマウント支持体によって解決された。
The above problem is solved by the lens mount support, which is made of a single plate formed by press working and has a flat plate part that forms the lens mount plate mounting surface and the camera body mounting surface, respectively, and a step part that connects both wing plate parts. Resolved.

本発明によるレンズマウント支持体は適宜の大きさの金
属板材をプレス加工してレンズマウント板取付面、カメ
ラ本体取付面をそれぞれ形成する1′−板部と両”l’
 M部をつなぐ段部からなる形状に絞り成型し、更に縁
抜き、中央窓部、各取付用ネノ孔等の型抜き、工ンボッ
シング加二[等を行うことにより、簡1i’、に作成す
ることができる。
The lens mount support according to the present invention has a plate part 1' and a plate part 1' which form a lens mount plate mounting surface and a camera body mounting surface, respectively, by pressing a metal plate material of an appropriate size.
Draw and form it into a shape consisting of a step connecting the M part, and then cut out the edges, center window, holes for each mounting, etc., and process the machining and bossing to easily create a shape of 1i'. be able to.

板材としては絞り成型n(能な鉄、ステンレス、アルミ
ニラl−等各種金属を用いることができるが加f性、耐
久性等の面から鉄の使用が最も好ましい。鉄を用いる場
合その厚みは0.5mn+乃至2mmの範囲が好ましく
、成型後室化処理等の硬化処理を施すことが好ましい。
As the plate material, various metals such as draw-molded iron, stainless steel, and alumina l- can be used, but the use of iron is most preferable from the viewpoints of fusing properties and durability. When iron is used, the thickness is 0. A range of .5 mm+ to 2 mm is preferable, and it is preferable to perform a hardening treatment such as chambering treatment after molding.

かくして得られるレンズマウント支持体は段付構造を有
し、これを絞り加]二で成型しているため、板材を用い
て作られているにもかかわらず充分な強度と非変形性を
有し、またIt′−い精度が確保されている。またグイ
キャスト鋳造品に(らべ肉薄のものが得られ、カメラの
コンパクト化にも有用である。
The lens mount support obtained in this way has a stepped structure and is formed by drawing and drawing, so it has sufficient strength and non-deformability even though it is made from a plate material. , and It'-high accuracy is ensured. In addition, it is possible to obtain thin-walled Guicast castings, which is useful for making cameras more compact.

また本発明によるレンズマウント支持体はプレス加工に
よって作製されるため種々の形態をとることが容易であ
り、例えば通常レンズマウント板に設けられるバヨネッ
トの爪部をレンズマウント支持体側に設ける等、種々の
変形が可能である。
Furthermore, since the lens mount support according to the present invention is manufactured by press working, it is easy to take various forms. For example, the bayonet claw part normally provided on the lens mount plate may be provided on the lens mount support side. Deformation is possible.

〔天施例〕[Heavenly Example]

以F実施例によって具体的に説明するが本発明のレンズ
マウント支持体の形状等はこれに限定されるものではな
い。
Hereinafter, a specific explanation will be given with reference to Example F, but the shape etc. of the lens mount support of the present invention is not limited thereto.

第1図は本発明のレンズマウント支持体及びその取付け
を示す概要図である。図中1はレンズマウント支持体で
、レンズマウント板取付面を形成するNIZ面部2、カ
メラ本体取付面を形成する平板部3及び両手面部をつな
ぐ段部4から成り、鉄板をプレス加−Lによって成型し
、窒化処理して作成されている。レンズマウント支持体
1は平板部3に設けられたネノ孔a、〜a、によりカメ
ラ本体6の1市而(二ネノ市めして取付(すられる。レ
ンズマウント支持体1の前面の平面部2にはレンズマウ
ント板5か取付けられ、またレンズマウント支持体1の
後面にはミラーボックス7が取付けられる。レンズはレ
ンズマウント板5のバヨネット爪に固定されカメラに取
付けられる。レンズマウント支持体は一枚の板材より成
っているが絞り加工による段付構造を有するため充分な
強度を有している。
FIG. 1 is a schematic diagram showing the lens mount support of the present invention and its attachment. In the figure, reference numeral 1 denotes a lens mount support, which consists of a NIZ surface part 2 that forms the lens mount plate mounting surface, a flat plate part 3 that forms the camera body mounting surface, and a stepped part 4 that connects both hand surfaces. It is made by molding and nitriding. The lens mount support 1 is attached to the camera body 6 through the holes a, ~a provided in the flat plate part 3.The flat part 2 on the front surface of the lens mount support 1 A lens mount plate 5 is attached to the lens mount support 1, and a mirror box 7 is attached to the rear surface of the lens mount support 1.The lens is fixed to the bayonet claw of the lens mount plate 5 and attached to the camera. Although it is made of two sheets of plate material, it has a stepped structure created by drawing, so it has sufficient strength.

また高い非変形性を有しレンズの交換に際し歪んだすす
ることらなく長期にわたり高いレンに取付精度を維持す
ることができる。
In addition, it has high non-deformability and can maintain high mounting accuracy over a long period of time without becoming distorted when replacing the lens.

第2図はレンズマウント支持体Z1の中央窓部の打抜き
形状を変えてバヨネット爪22を形成したちのでありで
、この場合レンズマウント板23は単なるりングrよく
レンズマウントの作成工数を更に減する、二とができる
FIG. 2 shows a case in which the bayonet claw 22 is formed by changing the punched shape of the center window of the lens mount support Z1. In this case, the lens mount plate 23 is simply a ring, further reducing the number of steps required to create the lens mount. I can do two things.

〔発明の効果〕〔Effect of the invention〕

本発明のレンズマウントは一枚の板材をプレス加]−動
ることによって作成することができ、従来のグイキャス
ト法によって作成されたものにくらべ着しく安価に製造
することができ、その強度、精度ら光分な性能を有して
いる。またカメうのコンパクト化にも有用である。
The lens mount of the present invention can be made by pressing a single sheet of material and can be manufactured at a lower cost than those made by the conventional gui-casting method. It has excellent accuracy and performance. It is also useful for making turtles more compact.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明によるレンズマウント支持体とそのカメ
ラ本体への取付状態を示す図であり、第2図はバヨネッ
ト爪を有する本発明によるレンズマウント支持体の図で
ある。 1.21・・・レンズマウント支持イ本2・・・レンズ
マウント板取付面を形成する平&都3・・・カメラ本体
取付面を形成する平板部4・・・ffff+Rs   
   5123・・・レンズマウント扱6・・・力/う
本体   7・・・ミラーボックス22・・・バヨネッ
ト爪部 代理人 弁理士  野 1)義 親 第1図
FIG. 1 is a diagram showing a lens mount support according to the present invention and how it is attached to a camera body, and FIG. 2 is a diagram showing a lens mount support according to the present invention having a bayonet claw. 1.21...Lens mount support part 2...Flat & capital forming the lens mount plate mounting surface 3...Flat plate part 4 forming the camera body mounting surface...ffff+Rs
5123... Lens mount handling 6... Force/main body 7... Mirror box 22... Bayonet claw agent Patent attorney Field 1) Parent-in-law Figure 1

Claims (1)

【特許請求の範囲】[Claims] プレス加工によって成型された一枚の板材より成る、レ
ンズマウント板取付面、カメラ本体取付面をそれぞれ形
成する平板部と両平板部をつなぐ段部を有するカメラの
レンズマウント支持体。
A lens mount support for a camera, which is made of a single plate material formed by press working, and has a flat plate part that forms a lens mount plate mounting surface and a camera body mounting surface, respectively, and a step part that connects both flat plate parts.
JP20738084A 1984-10-02 1984-10-02 Lens mount support of camera Pending JPS6184635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20738084A JPS6184635A (en) 1984-10-02 1984-10-02 Lens mount support of camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20738084A JPS6184635A (en) 1984-10-02 1984-10-02 Lens mount support of camera

Publications (1)

Publication Number Publication Date
JPS6184635A true JPS6184635A (en) 1986-04-30

Family

ID=16538769

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20738084A Pending JPS6184635A (en) 1984-10-02 1984-10-02 Lens mount support of camera

Country Status (1)

Country Link
JP (1) JPS6184635A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020144255A (en) * 2019-03-07 2020-09-10 キヤノン株式会社 Camera mount, imaging apparatus, and manufacturing method of camera mount

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020144255A (en) * 2019-03-07 2020-09-10 キヤノン株式会社 Camera mount, imaging apparatus, and manufacturing method of camera mount

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