US3838829A - Device for centering rolls of convoluted strip material in photographic copying machines or the like - Google Patents

Device for centering rolls of convoluted strip material in photographic copying machines or the like Download PDF

Info

Publication number
US3838829A
US3838829A US00357337A US35733773A US3838829A US 3838829 A US3838829 A US 3838829A US 00357337 A US00357337 A US 00357337A US 35733773 A US35733773 A US 35733773A US 3838829 A US3838829 A US 3838829A
Authority
US
United States
Prior art keywords
shafts
stops
hubs
inserts
chamber
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 - Lifetime
Application number
US00357337A
Other languages
English (en)
Inventor
C Gotze
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 DE19722222291 external-priority patent/DE2222291C3/de
Application filed by Agfa Gevaert AG filed Critical Agfa Gevaert AG
Application granted granted Critical
Publication of US3838829A publication Critical patent/US3838829A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04—Kinds or types
    • B65H75/08—Kinds or types of circular or polygonal cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
    • G03B27/52—Details
    • G03B27/58—Baseboards, masking frames, or other holders for the sensitive material
    • G03B27/587—Handling photosensitive webs
    • G03B27/588—Supply rolls; Cutting arrangements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2217/00—Details of cameras or camera bodies; Accessories therefor
    • G03B2217/26—Holders for containing light-sensitive material and adapted to be inserted within the camera
    • G03B2217/261—Details of spools

Definitions

  • a device for centering rolls of convoluted strips in photographic copying machines has two shafts of identical length which, when placed end-to-end, are insertable from above into a chamber provided in a bearing structure.
  • Each shaft has an outer stop and an inner stop and each shaft carries an annular insert which is movable axially between the corresponding stops.
  • the inserts have hubs which are insertable into the ends of the core for a roll of convoluted strip material and flanges which abut against the respective ends of the core in response to complete insertion of the hubs.
  • Each insert abut against the outer stops when their flanges abut against the ends of a core having a greater length and against the inner stops when their flanges abut against the ends of a core having a smaller length.
  • Each insert further carries a springbiased ball which can snap into a recess provided in the periphery of the associated shaft between the corresponding stops sothat the inserts can center cores of an intermediate length.
  • the present invention relates to improvements in devices for centering tubular bodies of different axial lengths in bearings or analogous supports. More particularly, the invention relates to devices which can be utilized to center tubular cores for rolls of convoluted strip material, for example, in a photographic roll copying machine or the like.
  • Another object of the invention is to provide a centering device whose components need not be taken apart, adjusted and/or otherwise manipulated when a relatively long tubular body is followed by a shorter tu' bular body or vice versa.
  • a further object of the invention is to provide a centering device which can accept and center tubular bodies or two or more different lengths and which can automatically center tubular bodies of at least two different lengths.
  • the invention is embodied in a device for centering tubular bodies of different axial lengths, particularly for centering cores for and/or rolls of convoluted strip material in a photographic roll copying machine or the like.
  • the centering device comprises a bearing or support having a chamber of predetermined length which is preferably accessible from above, a pair of shafts each of which has spaced-apart inner and outer stops and which are insertable into the chamber of the bearing when placed end-to-end whereby the combined length of the two shafts preferably equals or closely approaches the length of the chamber, and an annular insert axially movably mounted on each of the shafts between the respective inner and outer stops.
  • the inserts have hubs which are insertable into a tubular body (e.g., into a core for or into a roll of convoluted strip or web material) from opposite ends of the tubular body and flanges which abut against the respective ends of the tubular body in response to complete insertion of the hubs.
  • the inserts abut against the inner stops of the respective shafts when the hubs are inserted into a tubular body having a first axial length and against the outer stops of the respective shafts when the hubs are inserted into a tubular body having a greater second axial length and while the shafts are disposed in the chamber of the bearing end-to-end.
  • FIG. 1 is an axial sectional view of a centering device which embodies the invention, the inserts being shown in axial positions they assume during centering of a relatively long core for a roll of convoluted strip material;
  • FIG. 2 is a similar axial sectional view of the centering device with the inserts shown in positions they assume during centering of a shorter core;
  • FIG. 3 is a side elevational view of one shaft and an axial sectional view of the corresponding insert, showing a detent structure which can releasably hold the insert in an intermediate position between the corresponding stops.
  • FIG. 1 illustrates a centering device which comprises five discrete parts, namely, a bearing or support 11, two shafts 5, 6 having identical lengths, and two annular inserts or plugs 3, 4 which respectively surround and are movable axially of. the shafts 5 and 6.
  • the bearing 11 defines a chamber 11A which extends between two parallel vertical surfaces 11a, 11b and whose length is identical with or closely approximates the combined length of the shafts 5 and 6.
  • the bearing 11 has an open upper side 118 which is flanked by two surfaces He, 11 f converging toward each other in a direction toward the chamber 11A so that the outer ends of the shafts 5, 6 can slide along and are guided by the surfaces lle, lllf during insertion into the chamber 11A.
  • the shafts 5, 6 are respectively provided with inner stops 8, 9 and outer stops 7, 10.
  • the stops 7, 8 of the shaft 5 are mirror symmetrical to the stops l0, 9 of the shaft 6 with reference to a plane which is normal to the axes of and extends between the shafts 5, 6 when the shafts are received in the chamber 11A in a manner as shown in FIG. 1.
  • the distance between the inner end of the shaft and the inner stop 8 is identical with the distance between the inner end of the shaft 6 and the inner stop 9, and the same applies for the outer stops 7, 10.
  • Each stop is preferably a split ring which extends in part into a circumferential groove of the respective shaft.
  • the inserts 3, 4 respectively comprise substantially cylindrical hubs 3a, 4a and preferably ring-shaped flanges or extensions 3c, 4c which extend radially outwardly beyond the respective hubs.
  • Each hub has at least one radially outwardly extending projection in the form of an axially parallel rib 3b, 4b whose width and or height decreases in a direction away from the respective flange.
  • the flanges may but need not extend circumferentially all the way around the respective shafts.
  • FIG. I further shows a tubular body 1 in the form of a cylindrical core consisting of cardboard or the like and supporting a supply or roll of convoluted strip material 2.
  • the internal diameter of the core 1 is slightly greater than the diameters of the hubs 3a, 4a.
  • the arrangement is such that, when the hubs 3a, 4a are inserted into the core 1 from the opposite ends thereof, the ribs 3b, 4b bear against the internal surface of the core and hold the inserts 3, 4 against axial movement.
  • the flanges 3c, 40 abut against the respective ends of the core and against the adjacent ends of innermost convolutions of the roll of strip material 2.
  • the length of the core 1 is such that, when the hubs 3a, 4a are fully inserted and the shafts 5, 6 are inserted into the chamber llA end-to-end, the inserts 3, 4 respectively abut against the outer stops 7, l0 and are thereby centered in the bearing 11.
  • the latter is further pro vided with supporting surfaces 11c, lid on which the flanges 3c, 40 rest when the centering device is fully assembled in a manner as shown in FIG. 1.
  • the distance between the supporting surface 110 and the right-hand end of the roll of convoluted strip material 2 is then identical with that between the left-hand end of the supporting surface 11d and the adjacent end of the roll.
  • the material 2 is assumed to be a web of paper one side of which is coated with a photosensitive layer to be exposed to light in the photographic copying machine.
  • the hubs 3a, 4a are introduced into the opposite ends of the core 1 so that the flanges 30, 4c reach and abut against the respective ends of the roll 2.
  • the shafts 5, 6 are thereupon inserted into the chamber 11A of the bearing 11, the inserts 3, 4 respectively abut against the corresponding inner stops 8, 9 so that the roll 2 is centered exactly midway between the supporting surfaces 110, lld for the flanges 3c, 40.
  • the attendant is merely required to fully insert the hubs 3a, 40 into the respective ends of the core 1 or 1'; the centering action is carried out in automatic response to insertion of shafts 5, 6 into the chamber 11A because the inner ends of the shafts then abut against each other and the stops 7, 10 or 8, 9 move into abutment with the adjacent outer or inner ends of the corresponding inserts 3, 4.
  • the roll 2' of FIG. 2 will be installed in the photographic copying machine when the machine is to make relatively small prints from a series of originals, such as the frames of an exposed photographic roll film or the frames of a series of roll films which are spliced to each other end-to-end.
  • the inserts 3, 4 may rotate relative to the shafts 5, 6, the shafts and the inserts may rotate with the core 1 or 1', or the core 1 or I rotates relative to the inserts and shafts. The same applies when the core 1 or 1' is used to collect strip material in a photographic copying machine or the like.
  • the axial bores 3d, 4d of the inserts 3, 4 receive the respective shafts 5, 6 with sufficient clearance to allow the inserts to move axially of the shaftsor vice versa. It is clear, however, that the inserts 3, 4 can be mounted in such a way that they are free to move axially between the respective stops 7, 8 and 9, 10 but cannot rotate on the associated shafts.
  • FIG. 3 illustrates the shaft 6 and the associated insert or plug 4.
  • the periphery of the shaft 6 between the stops 9 and 10 is provided with at least one notch or recess 6a which can receive a ball 12 mounted in a radial bore 4e of the flange 4c and being biased radially inwardly by a helical spring 13 which reacts against a screw 14.
  • the latter meshes with the flange 4c and is received in the outermost end of the bore 4e.
  • a similar detent structure can be provided on the shaft 5 and insert 3.
  • the purpose of such detent structures is to enable the centering device to properly center tubular bodies whose axial length exceeds that of the core 1 but is less than the axial length of the core 1.
  • the attendant inserts the hubs 3a, 4a in the same way as shown in FIGS. 1 or 2 and thereupon moves the shafts 5, 6 axially so that the balls 12 snap into the respective recesses whereby the tubular body of intermediate length is automatically centered when the shafts 5, 6 are inserted into the chamber 11A.
  • each shaft may be provided with two or more suitably distributed recesses as well as that the recesses can be provided in the internal surfaces of the inserts 3, 4; in the latter instance, each shaft has a radial bore for a springbiased ball which can snap into a selected recess of the associated insert.
  • each insert can carry in its interior a leaf spring (not shown) and the shafts 5, 6 may be provided with circumferential grooves alternating with ribs which cooperate with the respective leaf springs to hold the inserts in selected intermediate positions.
  • a device for centering tubular bodies of different axial lengths comprising a bearing having a chamber of predetermined length; a pair of discrete shafts each having spaced-apart inner and outer StPS,th combined length of said shafts being substantially equal to said predetermined length so that said shafts are insertable into said chamber when placed end-to-end; and an annular insert axially movably mounted on each of said shafts between the respective stops, said inserts having hubs insertable into a tubular body from opposite ends thereof and flanges which abut against the respective ends of the tubular body in inserted positions of said hubs, said inserts abutting against the corresponding inner stops when said hubs are inserted into a tubular body of a first length and against the corresponding outer stops when said hubs are inserted into a tubular body of a greater second length and while said shafts are located end-to-end in said chamber.
  • each of said shafts is one-half said predetermined length, said stops on one of said shafts being mirror symmetrical to said stops on the other of said shafts with reference to a plane normal to the axes of and extending between said shafts when said shafts are located in said chamber end-to-end.
  • a device as defined in claim 1, wherein said bearing has an open side through which said shafts are insertable into and removable from said chamber.
  • a device as defined in claim 3, wherein said bearing has mutually inclined surfaces flanking said open side and converging toward said chamber to guide the outer ends of said shafts during insertion into said chamber.
  • each of said hubs comprises at least one radially outwardly extending projection arranged to engage the internal sur face of a tubular body which receives said hubs.
  • each of said projections is an axially parallel rib whose width, as considered in the radial direction of the respective hub, diminishes in a direction away from the respective flange.
  • a device as defined in claim 1. wherein said hearing comprises supporting surfaces for the flanges of said inserts.
  • a device as defined in claim 1 further comprising detent means provided on said shafts and said inserts for releasably holding each of said inserts in at least one intermediate position between the respective stops.
  • each of said detent means comprises at least one recess provided in the periphery of the corresponding shaft between the respective stops and a spring-biased member radially movably received in the corresponding insert and arranged to snap into said recess in said intermediate position of said corresponding insert.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Unwinding Webs (AREA)
  • Replacement Of Web Rolls (AREA)
US00357337A 1972-05-06 1973-05-04 Device for centering rolls of convoluted strip material in photographic copying machines or the like Expired - Lifetime US3838829A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722222291 DE2222291C3 (de) 1972-05-06 Vorrichtung zur Aufnahme von abzuwickelnden Bandrollen

Publications (1)

Publication Number Publication Date
US3838829A true US3838829A (en) 1974-10-01

Family

ID=5844241

Family Applications (1)

Application Number Title Priority Date Filing Date
US00357337A Expired - Lifetime US3838829A (en) 1972-05-06 1973-05-04 Device for centering rolls of convoluted strip material in photographic copying machines or the like

Country Status (2)

Country Link
US (1) US3838829A (enrdf_load_stackoverflow)
CH (1) CH562149A5 (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174077A (en) * 1978-07-03 1979-11-13 Paper Converting Machine Company Core holder for reeling
US4205804A (en) * 1978-04-28 1980-06-03 Stretch-Wrap, Inc. Material supporting assembly
US4230286A (en) * 1978-07-03 1980-10-28 Paper Converting Machine Company Core holder for reeling
US4479615A (en) * 1981-07-24 1984-10-30 Fuji Xerox Co., Ltd. Roll sheet supplying mechanism for a recording device
US5114088A (en) * 1989-08-04 1992-05-19 Officine Meccaniche Giovanni Cerutti S.P.A. Device for the automatic clamping of a spool of material in web form
EP0987589A1 (de) * 1998-09-15 2000-03-22 Gretag Imaging Ag Zentrierende Fotomaterial-Spuleinrichtung
US20050098267A1 (en) * 2000-11-15 2005-05-12 Xyron, Inc. Master processing apparatus
CN101879991A (zh) * 2010-06-30 2010-11-10 福州世纪林织造有限公司 多条织带自动盘卷机
US20130036610A1 (en) * 2011-08-08 2013-02-14 Richard Steven Paoletti Notchless Core
CN105437789A (zh) * 2015-12-14 2016-03-30 广州市宝比万像科技有限公司 卷轴及打印机

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515382A (en) * 1923-06-18 1924-11-11 James D Cheesman Roll-paper holder
US1667916A (en) * 1925-03-07 1928-05-01 Ditto Inc Spindle for gelatin rolls
US1693876A (en) * 1926-12-23 1928-12-04 Jr Edward N Unruh Cable-spooling device
US2113701A (en) * 1936-11-11 1938-04-12 Charles W Mayer Chock for mill roll mandrels
US2575062A (en) * 1947-06-03 1951-11-13 Western Electric Co Reel spindle
US3730452A (en) * 1971-04-12 1973-05-01 Pitney Bowes Sage Inc Electrophotographic copy paper supply roll and mounting assembly therefor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1515382A (en) * 1923-06-18 1924-11-11 James D Cheesman Roll-paper holder
US1667916A (en) * 1925-03-07 1928-05-01 Ditto Inc Spindle for gelatin rolls
US1693876A (en) * 1926-12-23 1928-12-04 Jr Edward N Unruh Cable-spooling device
US2113701A (en) * 1936-11-11 1938-04-12 Charles W Mayer Chock for mill roll mandrels
US2575062A (en) * 1947-06-03 1951-11-13 Western Electric Co Reel spindle
US3730452A (en) * 1971-04-12 1973-05-01 Pitney Bowes Sage Inc Electrophotographic copy paper supply roll and mounting assembly therefor

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205804A (en) * 1978-04-28 1980-06-03 Stretch-Wrap, Inc. Material supporting assembly
US4174077A (en) * 1978-07-03 1979-11-13 Paper Converting Machine Company Core holder for reeling
US4230286A (en) * 1978-07-03 1980-10-28 Paper Converting Machine Company Core holder for reeling
US4479615A (en) * 1981-07-24 1984-10-30 Fuji Xerox Co., Ltd. Roll sheet supplying mechanism for a recording device
US5114088A (en) * 1989-08-04 1992-05-19 Officine Meccaniche Giovanni Cerutti S.P.A. Device for the automatic clamping of a spool of material in web form
US6338452B1 (en) 1998-09-15 2002-01-15 Gretag Imaging Ag Centering photographic material spooling device
EP0987589A1 (de) * 1998-09-15 2000-03-22 Gretag Imaging Ag Zentrierende Fotomaterial-Spuleinrichtung
US20050098267A1 (en) * 2000-11-15 2005-05-12 Xyron, Inc. Master processing apparatus
AU2006202004B2 (en) * 2000-11-15 2007-03-22 Xyron, Inc. Master processing apparatus
CN101879991A (zh) * 2010-06-30 2010-11-10 福州世纪林织造有限公司 多条织带自动盘卷机
CN101879991B (zh) * 2010-06-30 2012-11-07 福州世纪林织造有限公司 多条织带自动盘卷机
US20130036610A1 (en) * 2011-08-08 2013-02-14 Richard Steven Paoletti Notchless Core
CN105437789A (zh) * 2015-12-14 2016-03-30 广州市宝比万像科技有限公司 卷轴及打印机
CN105437789B (zh) * 2015-12-14 2018-04-24 广州市宝比万像科技有限公司 卷轴及打印机

Also Published As

Publication number Publication date
DE2222291A1 (de) 1973-11-22
CH562149A5 (enrdf_load_stackoverflow) 1975-05-30
DE2222291B2 (de) 1975-12-18

Similar Documents

Publication Publication Date Title
US3838829A (en) Device for centering rolls of convoluted strip material in photographic copying machines or the like
US4832275A (en) Film cassette
JPH03101751A (ja) プロセスカートリッジ
CA1238888A (en) Light-tight cassette
US2889123A (en) Spool and spindle assembly
US3540670A (en) Dynamically balanced spool
US1823245A (en) Motion picture film winding device
US3829034A (en) Reel spindle for multiple width reels
KR970048910A (ko) 인화지 메거진
US1377154A (en) Reel of sheet material
US3614012A (en) Elimination of backing paper shortage in roll film cartridges
US3322361A (en) Low tension core adapter
US3081960A (en) Adjustable film spool
JPH0256342A (ja) ロール保持用カセット
US2341491A (en) Film spool
US3722809A (en) Endless band winding apparatus
US4756418A (en) Anti-clockspringing apparatus and method
US2362603A (en) Focusing lens mount
US2273274A (en) Film magazine
US4465244A (en) Expanding core chuck
GB597894A (en) Improvements in or relating to devices for supporting photographic roll films duringdeveloping or like operations
US1957884A (en) Spindle for a reeling device
JP2831128B2 (ja) 感光材料ウエブスプール
US2216463A (en) Cinematograph camera provided with a magazine
US3877656A (en) Reel supporting device in instruments loaded with reels