JPH01251030A - Spool for winding film - Google Patents
Spool for winding filmInfo
- Publication number
- JPH01251030A JPH01251030A JP7855188A JP7855188A JPH01251030A JP H01251030 A JPH01251030 A JP H01251030A JP 7855188 A JP7855188 A JP 7855188A JP 7855188 A JP7855188 A JP 7855188A JP H01251030 A JPH01251030 A JP H01251030A
- Authority
- JP
- Japan
- Prior art keywords
- slit
- shielding paper
- light
- spool
- light shielding
- 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
- 238000004804 winding Methods 0.000 title claims description 23
- 238000013459 approach Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C3/00—Packages of films for inserting into cameras, e.g. roll-films, film-packs; Wrapping materials for light-sensitive plates, films or papers, e.g. materials characterised by the use of special dyes, printing inks, adhesives
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
本発明は、１２０型写真フイルム又は２２０型写真フイ
ルムの巻取用スプールに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a spool for winding 120-inch photographic film or 220-inch photographic film.
１２０型写真フイルム及び２２０型写真フイルムは、ス
プールに巻装された状態で販売されている。120-inch photographic film and 220-inch photographic film are sold wound on spools.
すなわち、１２０型フイルムは、第１１図に示すように
、遮光紙ｌにフィルム２が接着テープ３で固定され、遮
光紙１の端部４をスプールのスリットに係合させて巻装
し、この状態で販売されている。そして、使用時におい
ては、カメラの繰出側にフィルムを巻装したスプールを
装填するとともに、巻取側に空のスプールを装填し、繰
出側に装填したスプールの遮光紙ｌの端部を巻取側のス
プールのスリットに係合させ、フィルムの送り作業が行
なえる状態となる。こうして撮影毎に順次巻き取り、巻
取側のスプールにフィルムを全部巻き取った後カメラか
ら取り外すとともに、繰り出し側の空になったスプール
を次のフィルム使用時の巻取側のスプールとして用いる
。That is, as shown in FIG. 11, the 120-inch film is made by fixing the film 2 to a light-shielding paper l with adhesive tape 3, and winding the film by engaging the end 4 of the light-shielding paper 1 with the slit of the spool. Sold in condition. When in use, load a spool with film wound on the camera's feeding side, load an empty spool on the take-up side, and wind up the end of the light-shielding paper l of the spool loaded on the feeding side. Engage it with the slit on the side spool, and you are ready to feed the film. In this way, the film is wound sequentially for each photograph, and after the entire film is wound onto the spool on the winding side, it is removed from the camera, and the empty spool on the feeding side is used as the spool on the winding side when the film is used next time.
従来、このような１２０型写真フイルムのスプルとして
は、ＩＳＯ７３２−１９８２、ＡＮＳＩ ＰＨ１，２１
−１９８０、ＪＩＳ Ｋ７５１２−１９８５等゛で規格
化されている。例えば、第９図及び第１０図に示すよう
に、巻軸６と、この両側端に形成されたフランジ７．７
と、巻軸６の中央に穿設されたスリット８とからなって
いる。Conventionally, the sprue for such 120-inch photographic film is based on ISO732-1982, ANSI PH1, 21.
-1980, JIS K7512-1985, etc. For example, as shown in FIGS. 9 and 10, a winding shaft 6 and flanges 7.7 formed at both ends thereof.
and a slit 8 bored in the center of the winding shaft 6.
そして、図中鎖線で示すように、スリット８に遮光紙１
の端部４を挿通して係合させていた（例えば実開昭６２
−７９２２７号公報）。Then, as shown by the chain line in the figure, the light-shielding paper 1 is inserted into the slit 8.
The end portion 4 of the
-79227).
しかし、上述した従来のスプールでは、遮光紙１をスリ
ット８に挿通しても、スプールへの巻き付けが充分では
なく、送り作業を行おうとすると端部４がスリット８か
ら外れることがあった。However, in the conventional spool described above, even when the light-shielding paper 1 is inserted through the slit 8, it is not sufficiently wound around the spool, and the end portion 4 may come off the slit 8 when attempting to carry out a feeding operation.
本発明は以上の課題を解決し、遮光紙が外れることのな
いフィルム巻取用スプールを提供することを目的とする
。SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and provide a film winding spool in which the light-shielding paper does not come off.
本発明は上記目的を達成するためになされたもので、ス
リットに突起を設はスリットと遮光紙との摩擦抵抗が大
きくなるようにしたものである。The present invention has been made to achieve the above object, and the protrusions provided on the slit increase the frictional resistance between the slit and the light-shielding paper.
すなわち、本発明のフィルム巻取用スプールは、フィル
ムが固定された遮光紙を巻装する巻軸と、該巻軸に穿設
された遮光紙の端部を係合するスリットとを有するスプ
ールにおいて、該スリットの内面に突起が形成され、遮
光紙とスプールの摩擦抵抗を大きくすることを特徴とし
て構成されている。That is, the film winding spool of the present invention includes a winding shaft for winding light-shielding paper to which a film is fixed, and a slit formed in the winding shaft for engaging the end of the light-shielding paper. , a protrusion is formed on the inner surface of the slit to increase the frictional resistance between the light-shielding paper and the spool.
スリットに形成される突起は、遮光紙との摩擦抵抗を大
きくしてスリットから遮光紙が外れないようにするため
のものである。この突起は、遮光紙との摩擦抵抗を上げ
ることができれば、その形状、寸法、個数等は種々変更
することができる。The protrusion formed in the slit increases the frictional resistance with the light-shielding paper to prevent the light-shielding paper from coming off from the slit. The shape, size, number, etc. of these protrusions can be changed in various ways as long as the frictional resistance with the light-shielding paper can be increased.
例えば、突起を遮光紙の挿通方向に線状に形成しても、
散点状に形成してもよい。また、遮光紙の挿通性を良く
するために、スリットの開口部近傍において案内用の傾
斜を形成したり、中央に行くに従って高くなるようにテ
ーパー状に形成することが好ましい。さらに、摩擦抵抗
を簡単に大きくできるので、スリット内で遮光紙が波型
に変形するように突起を配置することが好ましい。For example, even if the protrusions are formed linearly in the insertion direction of the light-shielding paper,
It may also be formed in the form of scattered dots. Further, in order to improve the insertion property of the light-shielding paper, it is preferable to form a guide slope near the opening of the slit, or to form a tapered shape so that the height increases toward the center. Furthermore, since the frictional resistance can be easily increased, it is preferable to arrange the protrusions so that the light-shielding paper is deformed into a wave shape within the slit.
本発明のフィルム巻取用スプールでは、突起が挿入され
た遮光紙と接触し遮光紙との摩擦抵抗を大きくし、遮光
紙がスリットから外れるのを防止している。In the film winding spool of the present invention, the protrusions come into contact with the inserted light-shielding paper to increase the frictional resistance with the light-shielding paper, thereby preventing the light-shielding paper from coming off from the slit.
本発明によるフィルム巻取用スプールの一実施例を第１
図から第６図に基づいて説明する。A first embodiment of the film take-up spool according to the present invention will be described below.
This will be explained based on FIGS. 6 to 6.
第１図はフィルム巻取”用スプールの一部切り欠いた斜
視図、第２図は同上正面図、第３図は第２図中鎖線Ａ線
断面図、第４図は同上遮光紙の挿入方向に切断した突起
の断面図、第５図は第４図中Ｃ−Ｃ線断面図、第６図は
第４図中Ｃ−Ｃ線断面図である。Figure 1 is a partially cutaway perspective view of the film winding spool, Figure 2 is a front view of the same as above, Figure 3 is a sectional view taken along the chain line A in Figure 2, and Figure 4 is insertion of the light shielding paper as above. 5 is a sectional view taken along the line CC in FIG. 4, and FIG. 6 is a sectional view taken along the line CC in FIG. 4.
第１図から第３図において、符号１１はフィルム３が固
定された遮光紙１を巻装する巻軸で、この巻軸１１の両
側端にはフランジ１２．１２が形成されている。また巻
軸１１の両端近傍を除いた略中央部には、遮光紙１を挿
通させて係合させるスリット１３が穿設されている。In FIGS. 1 to 3, reference numeral 11 denotes a winding shaft around which the light-shielding paper 1 to which the film 3 is fixed is wound, and flanges 12 and 12 are formed at both ends of this winding shaft 11. Further, a slit 13 through which the light-shielding paper 1 is inserted and engaged is provided approximately at the center of the winding shaft 11 excluding the vicinity of both ends.
このスリット１３の対向する内面１４．１５には、互い
違いにそれぞれ２個の突起１６・・・１６が形成されて
いる。On the opposing inner surfaces 14,15 of this slit 13, two protrusions 16, . . . 16 are formed alternately.
この突起１６は、遮光紙ｌの挿通方向全体にわたって形
成され、第４図に示すように、スリット１３′の開口部
から中央部に行くに従って高くなるように円弧状に形成
されている。また、突起１６の遮光紙ｌの挿通方向と直
角方向から切断した縦断面の形状は、第５図及び第６図
に示すように、中央部において半円形をし、開口部に行
（に従って幅が同じで高さが低くなる円弧状になってい
る。This protrusion 16 is formed throughout the insertion direction of the light-shielding paper l, and is formed in an arcuate shape, increasing in height from the opening of the slit 13' toward the center, as shown in FIG. In addition, the shape of the longitudinal section of the protrusion 16 taken from the direction perpendicular to the insertion direction of the light-shielding paper l is semicircular at the center and has a width corresponding to the opening (as shown in FIGS. 5 and 6). It has an arc shape with the same height and lower height.
なお、以上において、スリット１３の縦の幅は略２ＩＩ
ｌｌＩｌであり、突起１６は中央部において、即ち第５
図において、半径１ＩＩＩ１１の半円形状である。In addition, in the above, the vertical width of the slit 13 is approximately 2II
llIl, and the protrusion 16 is in the central part, that is, in the fifth
In the figure, it has a semicircular shape with a radius of 1III11.
このようなフィルム巻取用スプールに遮光紙ｌを係合さ
せるには、遮光紙１の端部４をスリット１３の開口部か
ら挿入する。すると端部４は両方の突起１６の曲面に案
内されて、第２図中鎖線図に示すように、波状に変形さ
せられる。これにより遮光紙ｌとスリット１３間の摩擦
抵抗が大きくなる。To engage the light-shielding paper 1 with such a film take-up spool, the end 4 of the light-shielding paper 1 is inserted through the opening of the slit 13. The end portion 4 is then guided by the curved surfaces of both protrusions 16 and is deformed into a wavy shape, as shown in chain lines in FIG. This increases the frictional resistance between the light-shielding paper l and the slit 13.
この実施例のスプールと従来のスプールにおいて、遮光
紙ｌの引出し抵抗を測定したところ、本実施例のスプー
ルは２００ｇであり、従来のスプールは１４０ｇであっ
た。When the pull-out resistance of the light-shielding paper L was measured for the spool of this example and the conventional spool, it was 200 g for the spool of this example and 140 g for the conventional spool.
この結果より、従来に比して摩擦抵抗が大きく遮光紙ｌ
が外れ難いことが実証された。From this result, it was found that the light-shielding paper l
It has been proven that it is difficult to remove.
７図及び第８図は、他の実施例の正面図である。7 and 8 are front views of other embodiments.
第７図に示す実施例は、対向する内面１４．１５に形成
される突起１６が、僅かな間隔を隔てて対向して形成さ
れているものである。In the embodiment shown in FIG. 7, the protrusions 16 formed on the opposing inner surfaces 14, 15 are formed facing each other with a slight spacing between them.
第８図に示す実施例は、突起１６が内面１４．１５の前
面に連続して形成されているものである。In the embodiment shown in FIG. 8, the protrusion 16 is formed continuously on the front surface of the inner surface 14.15.
本発明は、スリットの内面に突起を設けることにより、
スリットと遮光紙間の摩擦抵抗を上げることができるの
で、遮光紙がスリットから外れることがなくフィルムの
巻取作業を常に円滑に行うことができる。The present invention provides a projection on the inner surface of the slit.
Since the frictional resistance between the slit and the light-shielding paper can be increased, the light-shielding paper does not come off the slit, and the film winding operation can always be performed smoothly.
第１図は本発明によるフィルム巻取用スプールの一実施
例の一部切り欠いた斜視図、第２図は同上正面図、第３
図は第４図中Ｃ−Ｃ線断面図、第４図は同上遮光紙の挿
入方向に切断した突起の断面図、第５図は第４図中Ｃ−
Ｃ線断面図、第６図は第４図中Ｃ−Ｃ線断面図、第７図
及び第８図は他の実施例の正面図、第９図は従来のスプ
ールの正面図、第１０図は第４図中Ｃ−Ｃ線断面図、第
１１図は遮光紙及びフィルムの一部省略した平面図であ
る。
１１・・・巻軸 １２・・・フランジ１３・
・・スリット １６・・・突起特許出願人 富士
写真フィルム株式会社代理人 弁理士 国中 政治
はか１名第１図
第２図 第３図
Δ
第４図
第５図 第６図
第７図 第８図FIG. 1 is a partially cutaway perspective view of an embodiment of a film take-up spool according to the present invention, FIG. 2 is a front view of the same, and FIG.
The figure is a sectional view taken along the line C--C in FIG. 4, FIG.
6 is a sectional view taken along line C-C in FIG. 4, FIGS. 7 and 8 are front views of other embodiments, FIG. 9 is a front view of a conventional spool, and FIG. is a sectional view taken along the line CC in FIG. 4, and FIG. 11 is a partially omitted plan view of the light-shielding paper and film. 11... Winding shaft 12... Flange 13.
...Slit 16... Protrusion Patent Applicant Fuji Photo Film Co., Ltd. Agent Patent Attorney Kuninaka Politics Haka1 person Figure 1 Figure 2 Figure 3 Δ Figure 4 Figure 5 Figure 6 Figure 7 Figure 8
Claims (1)
に穿設された遮光紙の端部を係合するスリットとを有す
るスプールにおいて、該スリットの内面に突起が形成さ
れ、遮光紙とスプールとの摩擦抵抗を大きくすることを
特徴とするフィルム巻取用スプールIn a spool that has a winding shaft for winding light-shielding paper to which a film is fixed, and a slit bored in the winding shaft that engages the end of the light-shielding paper, a protrusion is formed on the inner surface of the slit. A film winding spool characterized by increasing the frictional resistance between the paper and the spool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7855188A JPH01251030A (en) | 1988-03-31 | 1988-03-31 | Spool for winding film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7855188A JPH01251030A (en) | 1988-03-31 | 1988-03-31 | Spool for winding film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01251030A true JPH01251030A (en) | 1989-10-06 |
Family
ID=13665054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7855188A Pending JPH01251030A (en) | 1988-03-31 | 1988-03-31 | Spool for winding film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01251030A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845869A (en) * | 1995-09-13 | 1998-12-08 | Fuji Photo Film Co., Ltd. | Photographic roll film |
-
1988
- 1988-03-31 JP JP7855188A patent/JPH01251030A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5845869A (en) * | 1995-09-13 | 1998-12-08 | Fuji Photo Film Co., Ltd. | Photographic roll film |
| US5934592A (en) * | 1995-09-13 | 1999-08-10 | Fuji Photo Film Co., Ltd. | Photographic roll film |
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