JPH08314072A - Film unit with lens - Google Patents

Film unit with lens

Info

Publication number
JPH08314072A
JPH08314072A JP11601695A JP11601695A JPH08314072A JP H08314072 A JPH08314072 A JP H08314072A JP 11601695 A JP11601695 A JP 11601695A JP 11601695 A JP11601695 A JP 11601695A JP H08314072 A JPH08314072 A JP H08314072A
Authority
JP
Japan
Prior art keywords
film
chamber
roll
lens
patrone
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
JP11601695A
Other languages
Japanese (ja)
Inventor
Nagayoshi Noguchi
修由 野口
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film Co Ltd
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 Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP11601695A priority Critical patent/JPH08314072A/en
Publication of JPH08314072A publication Critical patent/JPH08314072A/en
Pending legal-status Critical Current

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  • Structure And Mechanism Of Cameras (AREA)

Abstract

PURPOSE: To provide a film unit with a lens capable of smoothly winding photographic film by reducing friction between the film and a projected line at the time of winding the film. CONSTITUTION: A plane is formed at the part of the projected line 21 existing on the backmost side of a film roll 19a and coming in contact with the outer peripheral surface of the roll 19a, and a straight line part 21a obtained by extending the plane to an exposing position side over the range of fixed length is formed. By the straight line part 21a, a part of the projected line 21 is separated toward the vicinity of the film exit 17a of a film chamber 17 in a state where the projected line 21 does not abut on the outer peripheral surface of the film roll 19a all over the area, and the friction between the projected line 21 and the photographic film 19 is drastially lowered at the time of winding the film.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はレンズ付きフイルムユニ
ットに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film unit with a lens.

【0002】[0002]

【従来の技術】レンズ付きフイルムユニットは、簡単な
撮影機構を備えたユニット本体に予め未露光のパトロー
ネ付きロ−ルフイルムを内蔵させたもので、カメラを携
帯していなくても手軽に写真撮影を行うことができる。
レンズ付きフイルムユニットには、ISO規格に適合し
た135フイルムパトローネが用いられ、その組み込み
時にはパトローネから写真フイルムを引き出してロ−ル
状にまとめ、それぞれパトローネ室、フイルム室に装填
する。そして、使用時には撮影の度にフイルム巻き上げ
操作を行うと、撮影済みの写真フイルムが順次パトロー
ネ内に巻き込まれるようになっている。
2. Description of the Related Art A film unit with a lens is a unit main body equipped with a simple photographing mechanism and a roll film with an unexposed patrone is built in advance, so that it is easy to take a photograph without carrying a camera. It can be carried out.
As the lens-fitted film unit, a 135 film cartridge which conforms to the ISO standard is used, and when it is assembled, the photographic film is pulled out from the cartridge and collected into rolls, which are respectively loaded into the cartridge chamber and the film chamber. Then, when the film is wound up each time a photograph is taken during use, the photographed films are taken up in the patrone in sequence.

【0003】レンズ付きフイルムユニットのフイルム室
の内壁には、例えば特開平6−250338号公報に記
載されているように、写真フイルムの感光面の裏側に摺
接するように、2本のレール状の突条が写真フイルムの
捲回方向と平行に設けられている。この突条は、写真フ
イルムがフイルム室で動く時に、写真フイルムの裏面が
フイルム室の内壁の全面に擦れて傷つくのを防止すると
ともに、写真フイルムの裏面とフイルム室の内壁との摩
擦を軽減して、写真フイルムがフイルム室から滑らかに
引き出されるようにする機能がある。
The inner wall of the film chamber of the lens-fitted film unit is provided with two rails so as to be in sliding contact with the back side of the photosensitive surface of the photographic film, as described in, for example, JP-A-6-250338. The ridges are provided parallel to the winding direction of the photographic film. This ridge prevents the back surface of the photo film from rubbing and scratching the entire inner wall of the film room when the photo film moves in the film room, and reduces the friction between the back surface of the photo film and the inner wall of the film room. The photo film can be smoothly pulled out from the film chamber.

【0004】[0004]

【発明が解決しようとする課題】しかしながら、フイル
ム室から写真フイルムが引き出されるスリット状のフイ
ルム出口が、フイルム室の後カバー(背面)寄りにある
ため、写真フイルムの巻き上げの際に、後カバーに設け
られた突条の内、フイルム室の内壁の最も背面側に位置
する部分に、非常に大きな摩擦力が発生するという問題
があった。このため、写真フイルムの巻き上げトルクの
増大により、写真フイルムが円滑に巻き上げられなくな
ったり、写真フイルム裏面の擦り傷の原因になってい
た。
However, since the slit-shaped film exit through which the photographic film is pulled out from the film chamber is located near the rear cover (rear surface) of the film chamber, the rear cover of the photographic film is wound when the film is rolled up. There is a problem that a very large frictional force is generated in a portion of the provided ridges that is located on the rearmost side of the inner wall of the film chamber. For this reason, the increase in the winding torque of the photographic film causes the photographic film to not be smoothly wound up or causes scratches on the back surface of the photographic film.

【0005】本発明は上記従来技術の問題点を考慮して
なされたもので、写真フイルムの巻き上げ時に、写真フ
イルムと突条との摩擦を軽減し、写真フイルムが円滑に
巻き上げ可能なレンズ付きフイルムユニットを提供する
ことを目的とする。
The present invention has been made in consideration of the above-mentioned problems of the prior art. When the photographic film is wound up, the friction between the photographic film and the ridges is reduced, and the photographic film can be smoothly wound up. The purpose is to provide a unit.

【0006】[0006]

【課題を解決するための手段】本発明は上記目的を達成
するために、本発明のレンズ付きフイルムユニットにお
いては、後カバーの内面に設けられた突条に、フイルム
ロールの最も背面側でその外周面に接する平面を形成す
るとともに、この平面を露光位置側に一定の長さ範囲に
渡って延長したものである。
In order to achieve the above object, the present invention provides a lens-fitted film unit according to the present invention, wherein a projection provided on the inner surface of the rear cover is provided on the rearmost side of the film roll. A flat surface that is in contact with the outer peripheral surface is formed, and this flat surface is extended to the exposure position side over a certain length range.

【0007】[0007]

【実施例】以下本発明の実施例を図面を参照して説明す
る。図2は本発明を実施したレンズ付きフイルムユニッ
トの分解斜視図である。レンズ付きフイルムユニット2
は、シャッタ装置4や撮影レンズ5等を組み込んだ撮影
ユニット6、本体部7及びこれに前後から爪止めされる
前カバ−8、後カバ−9で構成されている。
Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an exploded perspective view of a lens-fitted film unit embodying the present invention. Film unit with lens 2
Is composed of a photographing unit 6 in which a shutter device 4, a photographing lens 5 and the like are incorporated, a main body portion 7, and a front cover 8 and a rear cover 9 which are fixed to the front and rear by the main body portion 7.

【0008】前カバ−8には撮影レンズ5、ファインダ
11、撮影枚数表示板12、及び巻き上げノブ13など
を露出させるための穴が設けられており、また、レリ−
ズボタン14が一体に設けられている。本体部7にはパ
トロ−ネ室16とフイルム室17が両端部に形成されて
おり、内部に写真フイルムパトロ−ネ18と、パトロ−
ネ本体18aから引き出された写真フイルム19をロー
ル状にまとめたフイルムロール19aがそれぞれ収納さ
れる。
The front cover 8 is provided with holes for exposing the taking lens 5, the finder 11, the number-of-shots display plate 12, the winding knob 13, and the like.
The button 14 is integrally provided. The main body 7 has a patrone chamber 16 and a film chamber 17 formed at both ends, and a photographic film patrone 18 and a patrone
The film rolls 19a, which are rolls of the photographic film 19 pulled out from the main body 18a, are stored.

【0009】後カバ−9にはパトロ−ネ室底蓋9a、及
びフイルム室底蓋9bが各々一体に設けられ、パトロ−
ネ室16の底部とフイルム室17の底部を各々光密に覆
うようになっている。そして、後カバ−9のフイルム室
17の背面を覆う部分には、写真フイルム19の背面が
フイルム室17の内壁に擦れて傷つくことを防止すると
ともに、写真フイルム19とフイルム室17の内壁との
摩擦を軽減して写真フイルム19がスムーズに繰り出さ
れるようにするために、2本のレール状の突条21が一
体に設けられている。この突条21が、フイルム室17
に収容されるフイルムロール19aの両側縁を背面から
当接して支えるようになっている。
The rear cover 9 is provided with a patrone chamber bottom lid 9a and a film chamber bottom lid 9b, which are integrated with each other.
The bottom of the chamber 16 and the bottom of the film chamber 17 are light-tightly covered. Then, in the portion of the rear cover 9 that covers the back surface of the film chamber 17, the back surface of the photographic film 19 is prevented from being scratched and scratched by the inner wall of the film chamber 17, and the photographic film 19 and the inner wall of the film chamber 17 are prevented from being scratched. In order to reduce friction so that the photographic film 19 can be smoothly fed out, two rail-shaped protrusions 21 are integrally provided. This ridge 21 is the film chamber 17
The side edges of the film roll 19a accommodated in the above are abutted and supported from the back side.

【0010】このような突条21の内、フイルムロール
19aの最も背面側でその外周面に接する部分に平面を
形成するとともに、この平面を露光位置側に一定の長さ
範囲に渡って延長した直線部21aが設けられている。
この直線部21aにより、図1に示すように、突条21
が全域に渡ってフイルムロール19aの外周面と当接せ
ずに、フイルム室17のフイルム出口17a付近に向か
って一部が離れた状態となり、フイルム巻き上げの際に
突条21と写真フイルム19との摩擦が大幅に低下す
る。
A flat surface is formed at a portion of the ridge 21 which is closest to the outermost surface of the film roll 19a on the rear surface side, and the flat surface is extended to the exposure position side over a certain length range. A straight line portion 21a is provided.
As shown in FIG. 1, the linear portion 21a causes the ridge 21
Does not come into contact with the outer peripheral surface of the film roll 19a over the entire area, but a part thereof is separated toward the vicinity of the film outlet 17a of the film chamber 17, and when the film is wound up, the ridge 21 and the photo film 19 are Friction is greatly reduced.

【0011】上記構成による作用について説明する。レ
ンズ付きフイルムユニット2の撮影開始直後は、図1の
ように、写真フイルム19はフイルムロール19aとし
てフイルム室17内で巻き緩み、最外周の写真フイルム
19の背面が後カバー9の突条21とフイルム室17の
内壁とで保持されている状態になっている。そして、レ
ンズ付きフイルムユニット2の写真フイルム巻き上げ時
には、巻き上げノブ13を回動させる。これにより、写
真フイルムパトロ−ネ18のスプールが回転し、写真フ
イルム19がフイルム室17のフイルム出口17aから
順次引き出されていく。
The operation of the above configuration will be described. Immediately after starting the photographing of the lens-fitted photo film unit 2, as shown in FIG. 1, the photo film 19 is loosely wound in the film chamber 17 as a film roll 19a, and the back surface of the photo film 19 at the outermost circumference is a ridge 21 of the rear cover 9. The film is held by the inner wall of the film chamber 17. Then, at the time of winding the photo film of the lens-fitted film unit 2, the winding knob 13 is rotated. As a result, the spool of the photo film patrone 18 is rotated, and the photo film 19 is sequentially drawn out from the film outlet 17a of the film chamber 17.

【0012】この時、突条21のうち、フイルムロール
19aの最も背面側でその外周面に接する部分に、直線
部21aが設けられているので、写真フイルム19がフ
イルム出口17a付近に向かって一部分だけ突条21と
離れた状態となり、写真フイルム巻き上げの際に突条2
1と写真フイルム19との摩擦が大幅に低下する。
At this time, since the straight portion 21a is provided at a portion of the ridge 21 which is the rearmost side of the film roll 19a and is in contact with the outer peripheral surface thereof, the photographic film 19 is partially directed toward the vicinity of the film outlet 17a. Only the ridge 21 is separated from the ridge 21 when the photo film is wound up.
The friction between No. 1 and the photographic film 19 is significantly reduced.

【0013】図3は、本発明のレンズ付きフイルムユニ
ットを用いて、写真フイルム巻き上げ時の巻き上げ力量
を、全撮影コマ(28枚)に渡って変化を示したグラフ
である。これによれば、同時に示した、従来の突条に直
線部を設けていないレンズ付きフイルムユニットの巻き
上げ力量と比較して、突条に直線部を設けたことによ
り、ほぼ撮影コマ全域に渡って、巻き上げ力量が顕著に
低減している。
FIG. 3 is a graph showing a change in the amount of winding power when the photo film is wound by using the lens-fitted film unit of the present invention over all the photographed frames (28 sheets). According to this, compared with the winding power of the film unit with a lens in which the linear portion is not provided in the conventional ridge, which is shown at the same time, the linear portion is provided in the ridge, so that the entire shooting frame is almost entirely covered. , The hoisting power is significantly reduced.

【0014】[0014]

【発明の効果】以上のように、本発明のレンズ付きフイ
ルムユニットによれば、後カバーの内面に設けられた突
条に、フイルムロールの最も背面側でその外周面に接す
る平面を形成するとともに、この平面を露光位置側に一
定の長さ範囲に渡って延長したので、写真フイルムの巻
き上げ時に、写真フイルムと突条との摩擦を軽減し、写
真フイルムが円滑に巻き上げ可能なレンズ付きフイルム
ユニットを提供することが可能になる。
As described above, according to the lens-fitted photo film unit of the present invention, the ridge provided on the inner surface of the rear cover is formed with the flat surface which is in contact with the outer peripheral surface of the film roll at the rearmost side. Since this plane is extended to the exposure position side over a certain length range, when the photo film is rolled up, the friction between the photo film and the ridges is reduced and the photo film can be smoothly rolled up with a lens unit. It becomes possible to provide.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明を実施したレンズ付きフイルムユニット
のフイルム室付近の断面図である。
FIG. 1 is a cross-sectional view of the vicinity of a film chamber of a lens-fitted film unit embodying the present invention.

【図2】図1に示したレンズ付きフイルムユニットの分
解斜視図である。
FIG. 2 is an exploded perspective view of the lens-fitted film unit shown in FIG.

【図3】本発明のレンズ付きフイルムユニットを用い
て、写真フイルム巻き上げ時の巻き上げ力量の変化を示
したグラフである。
FIG. 3 is a graph showing changes in the amount of winding power when winding a photographic film using the lens-fitted film unit of the present invention.

【符号の説明】[Explanation of symbols]

9 後カバー 21 突条 21a 直線部 9 Rear cover 21 Ridge 21a Straight part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 写真フイルムパトローネのパトローネ本
体を収容するパトローネ室、及び、この写真フイルムパ
トローネから引き出された未露光の写真フイルムをロー
ル状にしたフイルムロールを収容するフイルム室とが一
体に形成された本体部と、この本体部の前面を覆う前カ
バーと、前記パトローネ室及び前記フイルム室の背面並
びにこれらの両室間の露光位置にあるフイルムを光密に
覆う後カバーと、この後カバーの内面に設けられ、前記
フイルムロールの外周面に倣って延び、前記フイルムの
両側縁に背面側から摺接する一対の突条とを有するレン
ズ付きフイルムユニットにおいて、 前記突条に、前記フイルムロールの最も背面側でその外
周面に接する平面を形成するとともに、この平面を前記
露光位置側に一定の長さ範囲に渡って延長したことを特
徴とするレンズ付きフイルムユニット。
1. A patrone chamber for accommodating a patrone body of a photographic film patrone, and a film chamber for accommodating a film roll, which is a roll of the unexposed photographic film drawn from the photographic film patrone, are integrally formed. Main body portion, a front cover that covers the front surface of the main body portion, a rear cover that covers the back surface of the cartridge chamber and the film chamber and the film at the exposure position between these chambers in a light-tight manner, and the rear cover In a lens-fitted film unit having an inner surface, extending along the outer peripheral surface of the film roll, and having a pair of projections slidably contacting both side edges of the film from the back side, the projections are the most of the film rolls. Form a flat surface in contact with the outer peripheral surface on the back side, and extend this flat surface to the exposure position side over a certain length range. Film unit, characterized in that was poured.
JP11601695A 1995-05-15 1995-05-15 Film unit with lens Pending JPH08314072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11601695A JPH08314072A (en) 1995-05-15 1995-05-15 Film unit with lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11601695A JPH08314072A (en) 1995-05-15 1995-05-15 Film unit with lens

Publications (1)

Publication Number Publication Date
JPH08314072A true JPH08314072A (en) 1996-11-29

Family

ID=14676724

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11601695A Pending JPH08314072A (en) 1995-05-15 1995-05-15 Film unit with lens

Country Status (1)

Country Link
JP (1) JPH08314072A (en)

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