US3285144A - Hooks used for folding back flaps in folding-glueing machines - Google Patents

Hooks used for folding back flaps in folding-glueing machines Download PDF

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Publication number
US3285144A
US3285144A US338661A US33866164A US3285144A US 3285144 A US3285144 A US 3285144A US 338661 A US338661 A US 338661A US 33866164 A US33866164 A US 33866164A US 3285144 A US3285144 A US 3285144A
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US
United States
Prior art keywords
hook
folding
recess
blade
shaft
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
US338661A
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English (en)
Inventor
Frei Arthur
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.)
Bobst Mex SA
Original Assignee
Bobst SA
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 Bobst SA filed Critical Bobst SA
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Publication of US3285144A publication Critical patent/US3285144A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/262—Folding sheets, blanks or webs involving folding, leading, or trailing flaps of blanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/52—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers
    • B31B50/54—Folding sheets, blanks or webs by reciprocating or oscillating members, e.g. fingers operating on moving material

Definitions

  • the conventional hooks employ springs which must be independently regulated for each hook.
  • An object of the invention is to provide an improved hook which avoids the use of springs.
  • a further object of the invention is to utilize hydraulic means to act on the hooks to operate the same and to avoid the need for independent regulation of each hook.
  • FIGURE 1 is a diagrammatic representation of a conventional hook as employed in the prior art
  • FIGURES 2 and 3 are diagrammatic representations of a hook arrangement according to the invention in different stages of operation.
  • FIGURE 4 is a sectional view taken along lines IVIV in FIG. 2.
  • the hook in FIG. 1 is comprised of a shank 1 pivotally mounted on a shaft 2, and terminated by a hook portion 3.
  • a spring 4 acts on the end of shank 1 remote from the hook portion 3 to urge the shank against the stop 5.
  • each piece 7 comprises, for instance a flap 9, which the hook 3 folds back.
  • the flap 9 At a particular position of the advancing piece 7, the flap 9 is sufliciently folded and escapes the hook 3, and its folding is completed for instance by running between cylinders 10. Under the action of its spring, the hook returns to its starting position against stop 5 as soon as the piece 7 advances sufficiently and the operation starts again at the passage of each new cardboard piece.
  • the tension of the spring 4 is usually adjustable, because it is necessary to adapt it, not only to the force of the cardboard to be folded, but also to the amplitude of the oscillation depending in turn on the size of the flap to be folded back. Also generally, a series of flaps, deposed side by side are folded back simultaneously on a common folding line. In this case several hooks disposed side by side are utilized and it is necessary to regulate the machine when working, to adjust each hook spring separately.
  • the hook according to the invention eliminates this drawback.
  • the resistance applied to the hook thus depends on the fluid pressure, and it will then be easy to subject a battery of such hooks to the said pressure and to modify simultaneously their operation by merely changing the said pressure.
  • the hook is shown at 11 in the first position in FIG. 2 and at 11 in the second position in FIG. 3.
  • the hook is connected to a shaft 12, turning inside a cylindrical support made up of two parts 13 and 14, of which part 13 forms a socket covering a central cap of part 14 as seen in FIG. 4. However, this cap does not entirely fill the socket, leaving therein .a segment or sector shaped recess 15 extending practically over a quarter of a circle.
  • a swingable blade 16 integral with the shaft 12 and forming therein a rotatory piston capable of compressing an elastic fluid, in particular air under pressure, enclosed in the recess 15.
  • the blade 16 contacts a wall of the recess 15, which acts as a stop for the rotation of the hook 11.
  • the hook is in the trajectory 20 of the piece 21, of which one flap 22 is to be folded back around the folding line represented by the bend 23.
  • the blade 16 taking part in this motion is shifted to the position at 16', compressing the air enclosed in the recess 15 and in the bores and conduits in communication there with. This compression produces the required elfect of elasticity, tending to bring the hook back to its starting position with a force depending on the pressure.
  • An opening 25 establishes communication between the atmosphere .and the blade opposite to that put under pressure, so as to cancel any action on that side from the latter.
  • the regulation of the pressure on which depends the resistance opposed by the hook can be efiected by any suitable means.
  • one or several parallel connected hooks can be connected to a space of variable volume.
  • Both parts 13 and 14 of the box are assembled for instance by means of fasteners along the axis 26. Such fasteners and necessary seals are not illustrated in order not to complicate the drawing.
  • a hook adapted for being pivotally mounted in the path of advancement of a carton blank to effect folding of a flap of the blank, said hook comprising a shank with a terminal hook portion, a shaft rotatably supporting said shank, a housing having a recess receiving said shaft, and a blade disposed in said recess and secured with said shaft for rotation therewith, said recess being adapted for containing a compressible pressure fluid which is subjected to pressure upon rotation of the blade in said recess, thereby urging the blade to return to its original position.

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  • Making Paper Articles (AREA)
  • Package Closures (AREA)
US338661A 1963-04-23 1964-01-20 Hooks used for folding back flaps in folding-glueing machines Expired - Lifetime US3285144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH517463A CH383140A (fr) 1963-04-23 1963-04-23 Crochet servant à rabattre une patte dans une plieuse-colleuse travaillant des pièces de carton

Publications (1)

Publication Number Publication Date
US3285144A true US3285144A (en) 1966-11-15

Family

ID=4289142

Family Applications (1)

Application Number Title Priority Date Filing Date
US338661A Expired - Lifetime US3285144A (en) 1963-04-23 1964-01-20 Hooks used for folding back flaps in folding-glueing machines

Country Status (4)

Country Link
US (1) US3285144A (fr)
BE (1) BE693112A (fr)
CH (1) CH383140A (fr)
GB (1) GB1026325A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388641A (en) * 1964-12-15 1968-06-18 Jagenberg Werke Ag Apparatus for raising the bottom components of blanks for forming folding boxes
US4776831A (en) * 1986-04-18 1988-10-11 Bobst Sa Device for folding flaps of a box blank and maintaining the folded flap
US5876320A (en) * 1996-08-01 1999-03-02 Bell & Howell Cope Company Universal half folder apparatus
US6228010B1 (en) * 1998-05-13 2001-05-08 Tanabe Machinery Co., Ltd. Box sheet bending apparatus
WO2010086081A1 (fr) 2009-01-28 2010-08-05 Bobst Sa Dispositif et procede de pliage pour machine plieuse-colleuse
US20110177930A1 (en) * 2008-09-30 2011-07-21 Pascal Criblez Device for conveying and folding blanks
CN113306204A (zh) * 2021-05-26 2021-08-27 济南治久纸制品有限公司 一种收集装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597050A (en) * 1942-06-25 1952-05-20 Olaer Marine Hydraulic transmission for reproducing mechanical motions at remote points
US2879699A (en) * 1957-02-26 1959-03-31 Raymond A Labombarde Folding apparatus for leading flaps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597050A (en) * 1942-06-25 1952-05-20 Olaer Marine Hydraulic transmission for reproducing mechanical motions at remote points
US2879699A (en) * 1957-02-26 1959-03-31 Raymond A Labombarde Folding apparatus for leading flaps

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3388641A (en) * 1964-12-15 1968-06-18 Jagenberg Werke Ag Apparatus for raising the bottom components of blanks for forming folding boxes
US4776831A (en) * 1986-04-18 1988-10-11 Bobst Sa Device for folding flaps of a box blank and maintaining the folded flap
US5876320A (en) * 1996-08-01 1999-03-02 Bell & Howell Cope Company Universal half folder apparatus
US6228010B1 (en) * 1998-05-13 2001-05-08 Tanabe Machinery Co., Ltd. Box sheet bending apparatus
US20110177930A1 (en) * 2008-09-30 2011-07-21 Pascal Criblez Device for conveying and folding blanks
US8647248B2 (en) 2008-09-30 2014-02-11 Bobst Sa Device for conveying and folding blanks
EP3326794A1 (fr) 2008-09-30 2018-05-30 Bobst Mex Sa Dispositif de transport et de pliage de découpes
WO2010086081A1 (fr) 2009-01-28 2010-08-05 Bobst Sa Dispositif et procede de pliage pour machine plieuse-colleuse
US20110294637A1 (en) * 2009-01-28 2011-12-01 Mueller Andreas Folding device and method for folding-gluing machine
CN113306204A (zh) * 2021-05-26 2021-08-27 济南治久纸制品有限公司 一种收集装置

Also Published As

Publication number Publication date
CH383140A (fr) 1964-10-15
BE693112A (fr) 1967-07-03
GB1026325A (en) 1966-04-20

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