RU96115686A - MAGNETIC TAPE HOSE - Google Patents

MAGNETIC TAPE HOSE

Info

Publication number
RU96115686A
RU96115686A RU96115686/28A RU96115686A RU96115686A RU 96115686 A RU96115686 A RU 96115686A RU 96115686/28 A RU96115686/28 A RU 96115686/28A RU 96115686 A RU96115686 A RU 96115686A RU 96115686 A RU96115686 A RU 96115686A
Authority
RU
Russia
Prior art keywords
sleeve
winding
tape
web
magnetic recording
Prior art date
Application number
RU96115686/28A
Other languages
Russian (ru)
Other versions
RU2167802C2 (en
Inventor
Юрген Шмидт
Бернд Шолтизик
Original Assignee
Эмтек Магнетикс Гмбх
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
Priority claimed from DE29512342U external-priority patent/DE29512342U1/en
Application filed by Эмтек Магнетикс Гмбх filed Critical Эмтек Магнетикс Гмбх
Publication of RU96115686A publication Critical patent/RU96115686A/en
Application granted granted Critical
Publication of RU2167802C2 publication Critical patent/RU2167802C2/en

Links

Claims (6)

1. Полая цилиндрическая втулка для намотки магнитных носителей записи в виде ленты или полотна относительно большой длины, отличающаяся тем, что соблюдено условие
D/Ew < 0,006/p,
где p - давление намотки на поверхность намотки втулки;
D - диаметр втулки;
E - модуль упругости материала втулки;
w - толщина стенки втулки,
то есть диаметр втулки (D), поделенный на модуль упругости (E) материала втулки, умноженный на толщину стенки (w) втулки, должен быть меньше коэффициента 6 • 10-3, поделенного на давление намотки (p), приложенное к поверхности намотки втулки (1).1. A hollow cylindrical sleeve for winding magnetic recording media in the form of a tape or web of relatively large length, characterized in that the condition is met
D / Ew <0.006 / p,
where p is the pressure of the winding on the surface of the winding of the sleeve;
D is the diameter of the sleeve;
E is the modulus of elasticity of the material of the sleeve;
w is the wall thickness of the sleeve,
that is, the diameter of the sleeve (D) divided by the elastic modulus (E) of the material of the sleeve multiplied by the wall thickness (w) of the sleeve must be less than a factor of 6 • 10 -3 divided by the winding pressure (p) applied to the surface of the winding of the sleeve (one). 2. Втулка по п.1, отличающаяся тем, что сжатие ΔD/D не превышает 0,3%, где ΔD - уменьшение диаметра втулки. 2. The sleeve according to claim 1, characterized in that the compression ΔD / D does not exceed 0.3%, where ΔD is the reduction in diameter of the sleeve. 3. Втулка по п.1 или 2, отличающаяся тем, что она изготовлена из стали, алюминия, твердого пертинакса или другой пластмассы, которая может содержать упрочняющий материал. 3. The sleeve according to claim 1 or 2, characterized in that it is made of steel, aluminum, solid pertinax or other plastic, which may contain reinforcing material. 4. Втулка по одному из пп.1 - 3, отличающаяся тем, что среднее значение центральной линии Ra поверхности (3) втулки не превышает 10 мкм.4. The sleeve according to one of claims 1 to 3, characterized in that the average center line R a of the surface (3) of the sleeve does not exceed 10 μm. 5. Магнитный носитель записи в виде ленты или полотна, отличающийся тем, что после намотки в соответствии с пп. 1 - 4 он имеет временную ошибку (значение сдвига), не превышающее 5 мкм на его полной длине. 5. A magnetic recording medium in the form of a tape or web, characterized in that after winding in accordance with paragraphs. 1 to 4, it has a temporary error (shear value) not exceeding 5 microns over its full length. 6. Магнитный носитель записи в виде ленты или полотна по п.5, отличающийся тем, что его длина по меньшей мере равна 5 м. 6. The magnetic recording medium in the form of a tape or web according to claim 5, characterized in that its length is at least 5 m.
RU96115686/28A 1995-08-01 1996-07-30 Magnetic tape winding bushing RU2167802C2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29512342.7 1995-08-01
DE29512342U DE29512342U1 (en) 1995-08-01 1995-08-01 Winding core for winding magnetic tapes

Publications (2)

Publication Number Publication Date
RU96115686A true RU96115686A (en) 1998-12-20
RU2167802C2 RU2167802C2 (en) 2001-05-27

Family

ID=8011223

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96115686/28A RU2167802C2 (en) 1995-08-01 1996-07-30 Magnetic tape winding bushing

Country Status (4)

Country Link
US (1) US5707025A (en)
JP (1) JP3037962U (en)
DE (1) DE29512342U1 (en)
RU (1) RU2167802C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012236663A (en) * 2011-05-10 2012-12-06 Sankyo Tateyama Inc Film winding core
JP2013189273A (en) * 2012-03-13 2013-09-26 Sankyo Tateyama Inc Film winding core
JP6317286B2 (en) 2015-03-27 2018-04-25 富士フイルム株式会社 Reel, reel component manufacturing method, and reel manufacturing method

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659543A (en) * 1950-09-21 1953-11-17 Sonoco Products Co Winding core
US3229928A (en) * 1964-04-24 1966-01-18 Data Packaging Corp Reel
US3493161A (en) * 1967-04-17 1970-02-03 Eastman Kodak Co Web support roller surface
DE1922430A1 (en) * 1969-05-02 1970-11-05 Dieter Oesterwind Process for tensioning screws, in particular expansion screws and expansion screws for carrying out the process
DE2457539A1 (en) * 1974-12-03 1976-06-10 Fischer Apparate Rohr REEL CASE
DE8137367U1 (en) * 1981-12-22 1984-09-20 Tanaka Shikan K.K., Yao, Osaka Paper tube
DE3512919C2 (en) * 1985-04-11 1994-04-14 Basf Magnetics Gmbh Winding core for magnetic tapes
DE3610557C2 (en) * 1986-03-27 1994-06-16 Schoeller Felix Jun Papier Winding core for web-shaped base paper for coating with photographic emulsions
US4832276A (en) * 1988-04-18 1989-05-23 Usx Corporation Polyurethane sleeve for tension reels
DE3823688A1 (en) * 1988-07-13 1990-01-18 Agfa Gevaert Ag METHOD FOR DETERMINING THE SKEW ERROR IN MAGNETIC TAPE
US4934622A (en) * 1989-04-11 1990-06-19 Eastman Kodak Company Core for winding a web of deformable material
JPH04366421A (en) * 1991-06-13 1992-12-18 Hitachi Maxell Ltd Manufacture of magnetic recording medium
JP2611612B2 (en) * 1992-11-18 1997-05-21 王子製紙株式会社 Cushioned paper tube
EP0613849A1 (en) * 1993-03-02 1994-09-07 Eastman Kodak Company A core covering for winding rolls of film and paper
DE9305304U1 (en) * 1993-04-07 1993-06-17 Basf Magnetics Gmbh, 6800 Mannheim, De

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