EP0987597A1 - Tampon pour matériau photographique - Google Patents

Tampon pour matériau photographique Download PDF

Info

Publication number
EP0987597A1
EP0987597A1 EP98117482A EP98117482A EP0987597A1 EP 0987597 A1 EP0987597 A1 EP 0987597A1 EP 98117482 A EP98117482 A EP 98117482A EP 98117482 A EP98117482 A EP 98117482A EP 0987597 A1 EP0987597 A1 EP 0987597A1
Authority
EP
European Patent Office
Prior art keywords
storage device
tape
drive
speed
weight
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.)
Granted
Application number
EP98117482A
Other languages
German (de)
English (en)
Other versions
EP0987597B1 (fr
Inventor
Peter Vogt
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.)
IMIP LLC
Original Assignee
Gretag Imaging 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
Application filed by Gretag Imaging AG filed Critical Gretag Imaging AG
Priority to EP98117482A priority Critical patent/EP0987597B1/fr
Priority to DE59811872T priority patent/DE59811872D1/de
Priority to JP11259353A priority patent/JP2000098571A/ja
Priority to CA002282040A priority patent/CA2282040A1/fr
Priority to US09/396,471 priority patent/US6267283B1/en
Publication of EP0987597A1 publication Critical patent/EP0987597A1/fr
Application granted granted Critical
Publication of EP0987597B1 publication Critical patent/EP0987597B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D13/00—Processing apparatus or accessories therefor, not covered by groups G11B3/00 - G11B11/00
    • G03D13/003—Film feed or extraction in development apparatus

Definitions

  • the present invention relates to a storage device for photographic material, in particular Photo paper or film, according to the preamble of claim 1.
  • Storage devices for photographic material are used to buffer band-like photographic material in the manufacturing or processing process, e.g. B. in photo paper development or film processing needed. They are also used to display the buffered length of photographic material and to control z. B. the photographic material transport speed outside of Storage depending on the buffered length of material used.
  • Such Displays or controls are e.g. B. known as a dancer or dancer control.
  • So-called roll storage devices are conventionally used for storage used.
  • a band of photographic material winds in these roll storage devices between pulleys along a transport path between an inlet and a Outlet of the store.
  • Pulleys are e.g. B. arranged in several levels, in particular two levels, and by changing the The center distance of the pulleys in the different levels is the length of the Transport path changed.
  • by extending the transport route in the Storage reduces the transport speed of the photo material tape at the storage outlet or be stopped completely.
  • the deflection rollers of the lowest level usually move up and down to change the transport path length.
  • This sled serves together with the lower pulleys further as a weight member, which is the photographic material keeps tense along its path in the store by the weight, whereby the lower pulleys when shortening the photo material tape against the weight move upward by pulling the photographic material.
  • the lower guide rollers in storage mode are used to thread the photo material tape guided above the upper deflection rollers in storage mode, so that the photo material tape can pass straight through between these deflection rollers when threading.
  • the sledge with the lower ones must therefore be in the starting position for threading
  • Deflecting rollers are raised.
  • lifting devices are provided which, for. B. work with chains, belts or spindles.
  • a carriage for a storage device must therefore be capable of three to be able to assume various operating states, namely firstly “driving up the sled” (for threading), secondly “brake the sled” (if the band breaks or ends) and thirdly “Sled can move freely under its own weight” (in storage mode).
  • the object of the invention is to provide a memory device which is in the operating state a free band length change in the memory when tightened by a weight member Photo material tape enables and in the event of a tape break or tape end a free fall the weight member prevented without resorting to expensive electrical controls.
  • the storage device serves to receive and dispense a photo material tape, which is supplied via an inlet to the storage device and via an outlet is issued from this.
  • the one running between the inlet and outlet Photo material tape is stretched over a weight link that on the photo material tape presses or rests on it. This way, if more tape fed as discharged, the tape kept taut. Conversely, more tape dissipated as fed, the weight is raised by the tension of the belt.
  • the weight member is designed so that it remains approximately in the same vertical position and thus a change in position of the weight member only with a change in height of the Weight member goes hand in hand. For this purpose, the weight member z. B.
  • the weight member a role, for. B. the have deflection roller known from the prior art. This role turns preferably free when transporting the photo material tape and thus remains when transporting the Photo material tape at least approximately in its position in the horizontal.
  • Carriages and guides are provided which at least approximately in the weight member hold a certain horizontal position, but a vertical movement of the weight allow.
  • weights can in particular be carried out via these guides or slides be connected to each other.
  • Several separate weight members can also be provided his. In the following, however, for the sake of simplicity, mostly only one Weight member spoken.
  • the storage device is advantageous with a drive device according to the invention provided that a change in height of the weight member or possibly several Weight links by means of a directional clutch, also freewheel or Freewheel clutch called, depending on the state freely allowed or actively effected.
  • a directional clutch or in a freewheel the switching process depends on Transition between a locked state, in which the drive member and the driven member Coupling connected, e.g. B. are clamped, and a freewheeling state in which Drive member and driven member can move independently of each other, depending on the direction the relative rotational movement between the drive member and the driven member. In one direction relative rotation prevents this (locked state), not in the other direction (Free running condition).
  • freewheels e.g. B.
  • ratchet freewheels (Ratchet wheels, ratchets) or z.
  • the change in height of the weight member, as z. B. in storage mode results in a mechanism, e.g. B. a belt with the rotational movement of the Output member coupled such that a change in height of the weight a rotation of the Output member and vice versa rotation of the output member causes a change in height of the weight.
  • a mechanism e.g. B. a belt with the rotational movement of the Output member coupled such that a change in height of the weight a rotation of the Output member and vice versa rotation of the output member causes a change in height of the weight.
  • the drive element is advantageous, in particular during normal storage operation the memory works as a buffer, rotated in the freewheeling direction.
  • the rotation takes place preferably continuously during storage operation and particularly preferably with a predetermined, especially constant speed.
  • the drive member is preferably at a predetermined speed operated that is slightly greater than or equal to a limit speed resulting from the maximum tape recording speed of the storage and the rotation associated with it of the output member results.
  • the resulting maximum speed of the output member in storage mode is therefore preferably less than or equal to the predefined one Speed at which the drive element is rotated in the freewheel direction.
  • the maximal The tape recording speed required by a memory depends on its Area of application. It typically results from the fact that there is no longer any photographic material band is delivered, and photo material tape at maximum speed to the memory is fed.
  • the maximum tape recording speed determines one maximum rate of descent of the weight, which in turn with a maximum rate of rotation the output member is coupled.
  • the drive link should therefore have a Rotation speed are rotated, so that even in this case at least just directional clutch is in a freewheeling state.
  • a drive is preferably provided which is switched off Condition prevents rotation of the drive member.
  • the drive z. B. apply a brake or is self-locking (e.g. by using a worm gear). This is advantageous when the weight is raised by rotating the drive member in the driving direction or locking direction, in particular for threading in Reaching the end position, the weight is kept at the desired height without the Drive must continue to be supplied with energy.
  • the drive preferably switches off, whereby a further drop in weight is prevented. This is particularly advantageous when the end of the tape is reached or the tape should tear.
  • a constant braking can be done by a control can be achieved by the speed at which the drive member is rotated, is slowed down. This can take place in particular when the end of the strip is reached or the tape breaks.
  • the detection of a free fall of the at least one weight can be carried out by Detection of the locked state of the one-way clutch is carried out. Because in storage mode constant rotation of the drive member, the clutch is in the freewheeling state and does not change to the locked state until the weight falls freely.
  • This detection can be used in terms of control technology and in particular for a warning signal or for Control of the belt transport, e.g. B. Stopping the tape transport can be used.
  • Stopping the tape transport can be used.
  • the memory can be determined whether the free fall of weight is due to a normal band end or to a Tearing the photo material tape.
  • Consequences are drawn, e.g. B. the tape can only be stopped if it breaks, at the end of the conveyor the transport continues unimpeded and only a warning signal is issued.
  • a roll storage device is shown schematically in FIG. 1, the three upper rolls 110 and has two lower rollers 120. It winds between the upper and lower rollers a belt 130 from an inlet 140 to an outlet 150 (each schematically as an arrowhead drawn). Less tape material is fed in at outlet 150 than at the inlet 140, the band 130 is extended as indicated by dash-dotted lines and the lower ones Deflection rollers 120 move to positions 120 '.
  • the lower pulleys will be connected by a carriage 160.
  • the memory according to the invention can also be used as a display and / or control element can be used.
  • the height of the lower rollers 120 indicates how much tape is still available in memory. The height of the rollers can thus be increased Control can be coupled, the z. B. the speed of the material strip at the inlet or outlet controls.
  • the main purpose of the memory is as a display or control serve, preferably serves as a movable element only a lower pulley.
  • FIG. 2 shows a memory according to the invention with the drive according to the invention.
  • the same elements as in Figure 1 are provided with the same reference numerals, so that their Description is now omitted.
  • the carriage 160 is a roller bearing 162 and a guide rod 164 at his Moved up and down.
  • the carriage 160 is on a traction device 210, such as B. a strap fixed.
  • the traction device 210 runs over a deflection disk or Deflection roller 220 and via the output member 310 of the freewheel 300. It is therefore between the Deflection plate 220 and the freewheel 300 excited.
  • the output element of the freewheel rotates in the direction indicated by the double arrow A. If the lower pulleys lower, the output member rotates in the direction indicated by the double arrow B.
  • the drive member 320 of the freewheel 300 is by means of a Drive 400 z. B. by means of a chain or a belt 410 in the driving direction in the direction of the double arrow A rotated.
  • the freewheel 300 is in the locked state State so that the output member 310 with the drive member 320 in the direction A rotates and raises the lower pulleys.
  • the deflection rollers rise and fall together with the slide when shortening or lengthening the free-range band 130.
  • a lifting of the lower pulleys is generally not possible in the storage mode Prevents freewheeling, since the output member is relative to the drive member when lifting the Deflection rollers in direction A rotates and thus the one-way clutch 300 in Freewheel state is.
  • a lowering of the lower pulleys causes the Output element in direction B. With a not rotating in the freewheel direction This would result in the drive element in that the one-way clutch is in the locked state and thus prevents the deflection rollers from sinking.
  • the invention therefore, in order a free sinking of the deflection rollers in the normal memory operating state of the memory enable the drive member with a predetermined rotational speed in the direction B rotated.
  • This predetermined rotational speed is set so that it is faster than the rotational speed of the output member 310 in the direction B, which is normal Storage mode is maximum possible. This way it turns in the normal Storage mode, the output member always relative to the drive member in the direction A, see above that a free movement of the carriage up and down can take place freely.
  • the maximum speed of rotation of the output member in direction B in the normal operating state results from the maximum speed with which the photo material tape 130 is fed to the memory at inlet 140 if there is no photographic material strip at outlet 150 is subtracted. In this state, there is a certain maximum sink rate the lower pulleys and thus the carriage 160, which in turn with a maximum rotational speed of the output member is coupled in the direction B.
  • the carriage 160 falls with the lower pulleys 120 in free fall down until the free fall speed has reached a limit speed which is determined by the rotational speed of the Drive member 320 is specified in the direction B.
  • the rotation speed is therefore preferred of the drive member in the direction B in memory mode so that it corresponds to the maximum sink rate in storage mode or slightly above it lies. In this way, a free fall of the sled can be done without a special one electronic control is provided on the maximum sink rate in Storage operations can be limited. This can damage the carriage and the lower pulleys, so the weight member can be avoided. If a lower one If the stop (not shown) is reached, the drive switches off.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Projection-Type Copiers In General (AREA)
EP98117482A 1998-09-15 1998-09-15 Tampon pour matériau photographique Expired - Lifetime EP0987597B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP98117482A EP0987597B1 (fr) 1998-09-15 1998-09-15 Tampon pour matériau photographique
DE59811872T DE59811872D1 (de) 1998-09-15 1998-09-15 Speichereinrichtung für Fotomaterial
JP11259353A JP2000098571A (ja) 1998-09-15 1999-09-13 写真感光材料用ストレ―ジデバイス
CA002282040A CA2282040A1 (fr) 1998-09-15 1999-09-13 Dispositif de stockage pour materiel photographique
US09/396,471 US6267283B1 (en) 1998-09-15 1999-09-15 Storage device for photographic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98117482A EP0987597B1 (fr) 1998-09-15 1998-09-15 Tampon pour matériau photographique

Publications (2)

Publication Number Publication Date
EP0987597A1 true EP0987597A1 (fr) 2000-03-22
EP0987597B1 EP0987597B1 (fr) 2004-08-25

Family

ID=8232638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98117482A Expired - Lifetime EP0987597B1 (fr) 1998-09-15 1998-09-15 Tampon pour matériau photographique

Country Status (5)

Country Link
US (1) US6267283B1 (fr)
EP (1) EP0987597B1 (fr)
JP (1) JP2000098571A (fr)
CA (1) CA2282040A1 (fr)
DE (1) DE59811872D1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5966562B2 (ja) 2012-04-23 2016-08-10 株式会社リコー ダンサーローラ装置
CN109051940A (zh) * 2018-09-28 2018-12-21 力信（江苏）能源科技有限责任公司 用于贴胶的胶带缓存装置
CN109279422A (zh) * 2018-12-03 2019-01-29 广东佰分爱卫生用品有限公司 一种大宽幅无纺布用于连续生产的自动储料设备
CN111515210A (zh) * 2020-06-11 2020-08-11 广东利元亨智能装备股份有限公司 过带机构及穿带方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534846A1 (de) * 1985-09-30 1987-04-16 Joachim Seidl Vorrichtung zum ausgleichen unterschiedlicher zufuehr- und abzugsgeschwindigkeiten von endlosmaterial
US5597105A (en) * 1994-02-24 1997-01-28 Gretag Imaging Ag Apparatus for buffering a variable length loop of strip material
EP0812791A2 (fr) * 1996-06-13 1997-12-17 Shikoku Kakoki Co., Ltd. Réservoir de stockage intermédiaire pour bandes de matériau

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3049308A (en) * 1960-01-21 1962-08-14 Nat Standard Co Festoon control system for haul-off apparatus
US3051362A (en) * 1960-05-05 1962-08-28 Nat Standard Co Bead building apparatus
US3278100A (en) * 1964-03-20 1966-10-11 Armstrong Cork Co Web accumulator including means for modifying tension in web passing therethrough
US3414208A (en) * 1966-09-02 1968-12-03 Jr Richard A Butler Apparatus for controlling the unwinding of web
GB1545803A (en) * 1976-07-26 1979-05-16 Pickering Ltd E Yarn compensator for a multicolour yarn warp printer
DD252360A1 (de) * 1986-08-27 1987-12-16 Polygraph Leipzig Vorrichtung zum regeln des abrollens in abwickeleinrichtungen

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3534846A1 (de) * 1985-09-30 1987-04-16 Joachim Seidl Vorrichtung zum ausgleichen unterschiedlicher zufuehr- und abzugsgeschwindigkeiten von endlosmaterial
US5597105A (en) * 1994-02-24 1997-01-28 Gretag Imaging Ag Apparatus for buffering a variable length loop of strip material
EP0812791A2 (fr) * 1996-06-13 1997-12-17 Shikoku Kakoki Co., Ltd. Réservoir de stockage intermédiaire pour bandes de matériau

Also Published As

Publication number Publication date
CA2282040A1 (fr) 2000-03-15
DE59811872D1 (de) 2004-09-30
US6267283B1 (en) 2001-07-31
JP2000098571A (ja) 2000-04-07
EP0987597B1 (fr) 2004-08-25

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