US3656702A - Strip-handling apparatus - Google Patents

Strip-handling apparatus Download PDF

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Publication number
US3656702A
US3656702A US871833A US3656702DA US3656702A US 3656702 A US3656702 A US 3656702A US 871833 A US871833 A US 871833A US 3656702D A US3656702D A US 3656702DA US 3656702 A US3656702 A US 3656702A
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US
United States
Prior art keywords
peeling member
slider
frame
coil
belt
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
US871833A
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English (en)
Inventor
Friedrich Forch
Erwin Krob
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.)
RAIMUND HAUSER
Original Assignee
Individual
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Filing date
Publication date
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Application granted granted Critical
Publication of US3656702A publication Critical patent/US3656702A/en
Anticipated expiration legal-status Critical
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    • 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
    • G03B1/00—Film strip handling
    • G03B1/42—Guiding, framing, or constraining film in desired position relative to lens system

Definitions

  • ABSTRACT A cartridge is fixed to a frame and has an exit opening.
  • a coil of strip contained in the cartridge has a leading end which is accessible from the outside of the cartridge and movable out of the same in a predetermined direction through the exit opening.
  • a peeling member carried by the frame is pivotally movable through the exit opening into engagement with a predetermined point of the periphery of the coil.
  • a belt drive has a plurality of rollers and a belt trained around the rollers. The rollers include a drive roller carried by the frame on a stationary axis and operable in a predetermined sense to move the belt in a predetermined direction, and a friction roller.
  • a friction roller mounting is movably mounted in the frame and carries the friction roller and is operable to move the friction roller through the exit opening into engagement with the periphery of the coil at a point which in the direction in which the leading end is movable out of the exit opening precedes the point where the periphery of the coil is engageable by the peeling member.
  • the belt has a belt course which is arranged to move away from the friction roller when the belt moves in the predetermined direction.
  • the peeling member and the belt course define between them a passage arranged to receive the leading end of the strip as it moves out through the exit opening.
  • a slider has the peeling member pivoted thereto and is movable from an initial position to a final position to move the peeling member into the cartridge.
  • a pawl is carried by the slider and arranged to engage the peeling member and hold it clear of the periphery of the coil when said slider is in an intermediate position between the initial and final positions.
  • a stop secured to the frame is arranged to be engaged by the pawl in the final position of the slider and thus to disengage the pawl from the peeling member.
  • a spring acting between the peeling member and slider tends to urge the peeling member into engagement with the periphery of the coil when the slider is in its final position.
  • FIG la STRIP-HANDLING APPARATUS This invention relates to a device for withdrawing a strip from a coil which is disposed in a cartridge, particularly in a cinematographic camera or reproducing apparatus, which device comprises a peeling member, which is carried by the apparatus and during the withdrawal of the strip engages the periphery of the coil, particularly under a resilient force, and a strip-driving belt drive having at least two rollers, a first of said rollers being mounted on a fixed axis and arranged to drive the belt, a friction roller serving to withdraw the leading end of the strip and arranged to engage the periphery of the coil at a point which in the strip-withdrawing direction lies closely before the peeling member, said friction roller being adapted to drive the strip in its withdrawing direction, the peeling member and that course of the belt which moves away from the friction roller defining a passage, through which the strip is withdrawn, and the peeling member being mounted on a controlling slider or the like and being mounted thereon preferably by being pivoted
  • the invention resides essentially in that the controlling slider or the like has secured to it a pawl or the like, which locks the peeling member in an intermediate position during the pivotal movement of the peeling member into the cartridge, and a stop is secured to the apparatus and engageable by the pawl in the end position of the controlling slider and arranged to disengage the pawl so that a spring which is anchored on the controlling slider causes the peeling member to continue its pivotal movement into engagement with the periphery of the strip coil.
  • This arrangement will ensure that the peeling member is pivotally moved into the cartridge after the strip drive and thus results in a greater latitude of design.
  • FIG. 1 is a schematic view which shows a device according to the invention applied to a substandard film projector.
  • FIG. 1a is a top plan view showing part of that device.
  • FIGS. 2 to 4 are schematic views which show the device according to the invention in different positions.
  • a projector 1 has a surface, not shown, for engagement by film supply cartridges 2, 3 in various sizes.
  • a threading-out device 4, 5 is provided, which consists of a peeling member 4 and a roller set 5.
  • a controlling slider 6 is provided, which serves to operate that threading-out device 4, 5 and which is manually operable by a sliding key 7. When this sliding key 7 is operated against the action of a spring 8, the slider 6 will be displaced to the right in FIG. 1.
  • the controlling slider 6 is guided with the aid of slots 9, which receive pins 10.
  • the peeling member 4 is arranged before the controlling slider 6 and consists of a U-shaped part, which in its limb facing the controlling slider 6 has cam slots 11. Pins 12 extend through the slots 1 1.
  • the peeling member 4 has also an extension 13, which under the action of a spring 14 bears on the right upper pin of the means for guiding the controlling slider 6. Another extension is provided with a detent pin 15,
  • the controlling slider 6 carries at its lower end a pawl 16.
  • the spring 14 imparts a pivotal movement to the peeling member 4 until the detent pin 15 engages the pawl 16.
  • the peeling member 4 remains in its position (FIGS. 2, 3).
  • an engaging surface 17 of the pawl 16 engages a stationary stop 18 so that the pawl 16 is lifted from the detent pin 15.
  • the spring 14 imparts a pivotal movement to the peeling member 4 until its leading end engages a coil of film which is disposed in a cartridge 2 or 3 (FIG. 4).
  • the roller set 5 (FIG. 1) comprises a drive roller 19, which is secured to a drive shaft 20.
  • the latter extends through one of the slots 9 of the controlling slider 6 and thus replaces one of the guide pins 10.
  • Additional rollers 22, 23 are mounted on a plate 21, which is pivotally movable about the drive shaft 20.
  • a common belt 24 is trained around all three rollers 19, 22, 23.
  • the means for driving the shaft 20 can be started as soon asthe peeling member 4 has reached one of the two positions shown in FIG. 4.
  • the controlling slider 6 may be displaced further to the right to a small extent to operate a clutch or the like for driving the shaft 20.
  • the rotation of the shaft 20 causes the plate 21 to perform a pivotal movement in the counterclockwise sense in dependence on the torque until said plate also engages the film coil.
  • the roller 22 has in this engaged position the function of a friction roller for driving the film coil and the plate 21, on which the roller 22 is mounted, constitutes a friction roller mounting.
  • FIG. 4 shows the roller set S and the peeling member 4 in two positions represented by dash-dot and solid lines, respectively.
  • the passage for the leading end of the film which passage is defined between the peeling member and the belt 24, has the same width in both positions.
  • a comparison of the two positions indicates that the path of the tip of the peeling member 4 intersects the path of the belt 24.
  • the invention ensures that there is a passage having a constant width for any coil diameter, the peeling member 4 enters the cartridges before the roller set 5, and a relatively small slot in the cartridges 2, 3 is sufficient to permit the peeling member 4 to enter one of these cartridges. All these advantages are afforded with relatively simple means.
  • the roller set 5 When the threading-out operation has been completed, the roller set 5 generally drops back to its initial position under the action of gravity. If it fails to do so for any reason whatever, the plate 21 may have an extension 25, which is pivotally moved by a stop 26 of the controlling slider 6 so that the plate 21 returns to its position of rest (see FIGS. 1, 2, 3). The peeling member also returns to its position of rest (FIG. 1) as soon as the upper guide pin 10 strikes against the extension 13 of the peeling member 4 (FIG. 2).
  • a pivotal movement may be imparted to the plate 21 by other means.
  • the pivotal movement of the plate 21 toward one of the film coils might be retarded by a pawl arrangement which is similar to that used for the peeling member 4.
  • the drive of the shaft 20 is suitably also derived from the main motor of the projector by a clutch. Alternatively, a separate motor may be provided for this purpose.
  • the controlling slider 6 may be used to perform numerous other functions, e.g., to lock the cartridge.
  • a strip-handling apparatus which comprises a frame
  • Human nntn a peeling member which is carried by said frame and movable through said exit opening into engagement with a predetermined point of the periphery of said coil,
  • rollers including a drive roller carried by said frame on an axis and operable in a predetermined sense to move said belt in a predetermined direction, and a friction roller,
  • a friction roller mounting movably mounted in said frame and carrying said friction roller and operable to move said friction roller through said exit opening into engagement with the periphery of said coil at a point which in the direction in which said leading end is movable out of said exit opening precedes the point where the periphery of said coil is engageable by said peeling member
  • said belt having a belt course which is arrangedto move away from said friction roller when said belt moves in said predetermined direction
  • said peeling member and said belt course defining between them a passage arranged to receive said leading end of said strip as it moves out through said exit opening,
  • said peeling member being movable relative to said slider
  • a pawl means carried by said slider and arranged to engage said peeling member and hold it clear of the periphery of said coil when said slider is in an intermediate position between said initial and final positions
  • Strip-handling apparatus as set forth in claim 1, in which said frame is a frame of a motion picture camera.
  • Strip-handling apparatus as set'forth in claim 1, in which 5 said frame is a frame of a motion picture projector.
  • Strip-handling apparatus as set forth in claim 1, in which said peeling member is mounted on said slider for pivotal movement about two different axes.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Photographic Developing Apparatuses (AREA)
  • Replacement Of Web Rolls (AREA)
US871833A 1968-10-30 1969-10-28 Strip-handling apparatus Expired - Lifetime US3656702A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1060068A AT282353B (de) 1968-10-30 1968-10-30 Einrichtung zur Abnahme eines Bandes

Publications (1)

Publication Number Publication Date
US3656702A true US3656702A (en) 1972-04-18

Family

ID=3623445

Family Applications (1)

Application Number Title Priority Date Filing Date
US871833A Expired - Lifetime US3656702A (en) 1968-10-30 1969-10-28 Strip-handling apparatus

Country Status (4)

Country Link
US (1) US3656702A (de)
JP (1) JPS4947455B1 (de)
AT (1) AT282353B (de)
DE (1) DE1953655A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5517170U (de) * 1978-07-20 1980-02-02

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3429518A (en) * 1968-02-19 1969-02-25 Eastman Kodak Co Device for stripping and feeding strip material from a roll
US3488016A (en) * 1966-12-01 1970-01-06 Paillard Sa Cassette for a spool bearing a magnetic tape or cinematographic film
US3552683A (en) * 1967-11-24 1971-01-05 Eastman Kodak Co Cinematographic projectors or the like and cartridges for use therewith

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3488016A (en) * 1966-12-01 1970-01-06 Paillard Sa Cassette for a spool bearing a magnetic tape or cinematographic film
US3552683A (en) * 1967-11-24 1971-01-05 Eastman Kodak Co Cinematographic projectors or the like and cartridges for use therewith
US3429518A (en) * 1968-02-19 1969-02-25 Eastman Kodak Co Device for stripping and feeding strip material from a roll

Also Published As

Publication number Publication date
DE1953655A1 (de) 1970-05-06
AT282353B (de) 1970-06-25
JPS4947455B1 (de) 1974-12-16

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