WO2002060795A1 - Manchon de retenue pour mandrin - Google Patents

Manchon de retenue pour mandrin Download PDF

Info

Publication number
WO2002060795A1
WO2002060795A1 PCT/US2002/002754 US0202754W WO02060795A1 WO 2002060795 A1 WO2002060795 A1 WO 2002060795A1 US 0202754 W US0202754 W US 0202754W WO 02060795 A1 WO02060795 A1 WO 02060795A1
Authority
WO
WIPO (PCT)
Prior art keywords
handle
roll core
holder body
recited
stiffening
Prior art date
Application number
PCT/US2002/002754
Other languages
English (en)
Inventor
An-Hsia Liu
Original Assignee
An-Hsia Liu
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 to AU2002255492A priority Critical patent/AU2002255492B2/en
Application filed by An-Hsia Liu filed Critical An-Hsia Liu
Priority to CA002436094A priority patent/CA2436094C/fr
Priority to JP2002560955A priority patent/JP3955820B2/ja
Priority to NZ527758A priority patent/NZ527758A/en
Priority to EP02724892A priority patent/EP1365982A4/fr
Publication of WO2002060795A1 publication Critical patent/WO2002060795A1/fr

Links

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
    • B65H16/00—Unwinding, paying-out webs
    • B65H16/02—Supporting web roll
    • B65H16/06—Supporting web roll both-ends type
    • 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
    • B65H75/18—Constructional details
    • B65H75/185—End caps, plugs or adapters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/413—Supporting web roll
    • B65H2301/4134—Both ends type arrangement
    • B65H2301/41346—Both ends type arrangement separate elements engaging each end of the roll (e.g. chuck)
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/515—Cutting handled material
    • B65H2301/5154—Cutting handled material from hand-held or table dispenser
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/41—Portable or hand-held apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/40—Details of frames, housings or mountings of the whole handling apparatus
    • B65H2402/41—Portable or hand-held apparatus
    • B65H2402/412—Portable or hand-held apparatus details or the parts to be hold by the user, e.g. handle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2407/00—Means not provided for in groups B65H2220/00 – B65H2406/00 specially adapted for particular purposes
    • B65H2407/10—Safety means, e.g. for preventing injuries or illegal operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/175—Plastic
    • B65H2701/1752—Polymer film
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/512—Cores or reels characterised by the material moulded
    • B65H2701/5122—Plastics

Definitions

  • the present invention relates generally to roll core holders, and more particularly to a disposable handle adapted for insertion into an open end of a film dispensing roll.
  • a roll core is made of compressed paper stock or plastic. It is used to wind up plastic, metal and paper sheets into rolls. These sheet materials are subsequently dispensed from the rolls. Rolls of this sort may be supported on a core chuck or similar equipment whereby the roll goods are pulled from the roll core by revolving the core on the core chuck. This may be a mechanized or manual operation. In some cases the roll goods is dispensed by simply holding the roll core and pulling the sheet roll goods from the roll core. This is difficult and can cause burns as the roll slips in the hands of one holding the core.
  • Parry U.S. 4,179,081 describes an improved apparatus for the manual application of plastic stretch films to materials and items to be packaged and secured as a unit or packaged and secured to a shipping and transporting means.
  • the apparatus consists of an extended core for the supply of plastic stretch film and a pair of tubular-like grip means for said extended core.
  • Said grip means serving as a manual control means for the speed of paying out the plastic stretch film material, and as a manual means for applying for applying tension on the film during the course of applying it to materials and items.
  • Parry U.S. 4,248,392, described an improved apparatus for the application of plastic stretch film to materials and items to be packaged and secured as a unit or packaged and secured to a shipping and transporting means.
  • the apparatus consists of a pair of insertable adapters for the ends of a cylindrical core which holds a supply of plastic stretch films and a pair of tubular-like grip means for said insertable adapters.
  • the grip means serves as a control means for the speed of paying out the plastic stretch film material, and as a means for applying tension on the film during the course of applying it to materials and items.
  • the apparatus may be used for manual or machine application of film to materials. Brake shoe equivalents of the grip means may be used for machine applications.
  • Parry et al. U.S. 4,722,493, describe a holder for dispensing stretch film from a roll comprising a cylindrical body and an arbor rotatably supported on the body.
  • a flexible grip having internal ribs covers the body and the arbor, so that one can, by applying finger pressure to the grip, brake rotation of the arbor and thus control film tension.
  • Hummel et al, U.S. 4,600,163 teach apparatus for controlled manual unrolling of rolled flexible material, which is not suitable for the user to rotatably hand-support directly by his or her fingers.
  • the insert must have a diameter fittingly for rotatably inserted into the respective end opening of the roll core.
  • the inserts have no way to mount at two ends of the roll core even when the inner diameter of the end opening of the roll core is just slightly smaller than the outer diameter of the inserts.
  • inserts are made in tapered shaped, as shown in Fig. 6 of the cited art, so that they are able to stack one inside the other and may fit to insert roll cores with various inner diameters, the insert would be stuck in the end opening of the roll core, when the user pushed to hard inwardly while supporting the web roll, that would block the rotation of the web roll with respect to the inserts. At this moment, the heavy web roll as well as the inserts would rotate with respect to the supporting hands of the user that may hurt and burn the user's fingers.
  • the user may hand-support the inserts by inserting the user's fingers into the two hollow cavities of the two inserts respectively.
  • the three undulations 14b-l to 14b-3 which are spacedly and longitudinally positioned around the inserts, are just slightly projected outwards, the wall of the insert is unavoidably in contact with the interior surface of the roll core, as shown in Fig. 5 of the cited art, especially when the user's fingers pressing against the wall of the insert outwardly that may burn the user's fingers due to the frictional heat generated between insert and the roll core.
  • the prior arts teach the user of roll core holders but do not teach a relatively flimsy cylindrical handle held within a roll core at either end by compressive elastic material bias.
  • the roll core holders are used as handles that the roll is directly supported by the user's fingers which are inserted into the holders, none of the conventional arts suggest how to prevent the user's holding fingers from burning heat due to the direct frictional contact of the circular wall of the holder and the inner surface of the roll core.
  • the present invention fulfills these needs and provides further related advantages as described in the following summary.
  • the present invention teaches certain benefits in construction and use which give rise to the objectives described below.
  • a primary objective of the present invention is to provide a disposable handle for roll core that provides advantages not taught by the prior arts described above.
  • Another objective of the present invention is to provide a very low manufacturing cost roll core handle which is effective and may be discarded after use.
  • Another objective of the present invention is to provide a disposable roll core handle which is capable of being produced at low cost.
  • Another objective of the present invention is to provide a disposable roll core handle which is capable of compressing into a roll core and this providing support while the roll core is rotated.
  • Another objective of the present invention is to provide a disposable roll core handle which is capable of being formed from a flat strip and rolled into a cylindrical for use as a handle for the user to support the film roll directly by his or her hands.
  • Another objective of the present invention is to provide a pair of disposable handles for roll core, which provide a smoother rotation of the roll core with respect to the handles with less friction and heat generated therebetween.
  • Another objective of the present invention is to provide a disposable handle for roll core, which is constructed to avoid heat transferred to the user's hand and fingers directly by providing an inner finger-holder portion, which has substantial contact with the inner surface of the roll core, for the user's fingers to support thereon.
  • Another objective of the present invention is to provide a disposable handle for roll core, which holder body is equipped with a spring effect to absorb pressure and vibration formed during the rotation of the film roll so as to avoid unwanted injury to the finger joints of the user's hands that support the roll core through a pair of the disposable handles.
  • Another objective of the present invention is to provide a disposable handle for roll core, which can be fitted to roll cores with various inner diameters, for example from 2.989 inches to 3.060 inches.
  • Another objective of the present invention is to provide a disposable handle for roll core, which can prevent the flange of the handle from rubbing or scratching against the respective end side of the film roll that may block the rotation of the film roll.
  • Another objective of the present invention is to provide a disposable handle for roll core, which incorporates reinforcing arrangement both in the flange and the holder body that minimizes the thickness of the handle so as to lower the manufacturing cost as much as possible.
  • the present invention provides a pair of low cost handles with every roll of goods that is shipped without driving up the cost of the commercial product.
  • the present invention provides a single or pair of disposable handles.
  • a single handle may be used.
  • a pair of the handles is necessary.
  • Each of the handles comprises a holder body having a circular side wall, which has a plurality of side wall arcuate segments spacedly and longitudinally arranged around the holder body and a plurality of stiffening ribs each longitudinally and inwardly extended between two of the arcuate segments.
  • the holder body is adapted fro compressive constraint when inserted into an end of the roll core so as to provide an outward spring bias deflection for gripping the roll core interiorly.
  • the two handles then, are placed in two ends of the roll core respectively.
  • the arcuate segments may be axially oriented or circumferentially oriented.
  • the stiffening ribs provided on the holder body of the handle in a spaced-apart and axially-directed manner are used to apply finger pressure to prevent the handles from revolving with the roll core.
  • the roll core is supported by the one or two handles which allow the film to be dispensed from the film roll as the film roll rotates about the stationary handle(s).
  • Figure 1 is a perspective view of a disposable handle for roll core according to a preferred embodiment of the present invention.
  • Figure 2 is an end elevational view of the disposable handle according to the above preferred embodiment of the present invention.
  • Figure 3 is an end elevational view of a disposable handle for roll core according to a first alternative mode of the above preferred embodiment of the present invention.
  • Figures 4 and 5 are end elevational views of a disposable handle for roll core according to a second and third alternative modes of the above preferred embodiment of the present invention, having square and round flanges respectively.
  • Figure 6 is a perspective view of an unrolled disposable handle according to a fourth alternative mode of the above preferred embodiment of the present invention.
  • Figure 7 is an end elevational view of the disposable handle as shown in Figure 6, wherein the disposable handle is rolled into a cylinder body with seam fastened.
  • Figure 8 is a perspective view of a disposable handle for roll core according to a fifth preferred embodiment of the present invention, having circumferential encircling the side wall of the holder body.
  • Figure 9 is a perspective view of a roll of goods with the disposable handle as shown in Figure 8 inserted in one end.
  • Figure 10 is a sectional view of the disposable handle while supporting the roll core according to the above preferred embodiment of the present invention.
  • Figure 1 1 is a perspective view of a disposable handle for roll core according to a sixth alternative mode of the above preferred embodiment of the present invention.
  • Figure 12 is a sectional view of the disposable handle while supporting the roll core according to the above sixth alternative mode of the above preferred embodiment of the present invention.
  • Figure 13 is an end elevational view of the disposable handle while supporting the roll core according to the above sixth alternative mode of the above preferred embodiment of the present invention.
  • a roll core 50 (not a part of the invention) is supported by one or a pair of cylindrical handles 10 preferably made of thin- wall plastic.
  • Such roll cores are made of paper or plastic and are simple tubers with open ends.
  • the handles 10 may be formed by injection molding, vacuum forming or spin molding.
  • Each handle 10 is an integral, one- piece part providing a hollow holder body 20 which is a generally circular side wall having a plurality of side-by-side side wall arcuate segments 22 formed thereon adapted for compressive constraint within the roll core 50 and derives from such compressive constraint, an outward spring bias deflection which is used for gripping the roll core 50 interiorly at one of its ends.
  • each of the arcuate segments 22 flex to form a smaller curvature of arc, thereby diminishing the overall outside diameter of the holder body 20.
  • Two handles 10 are placed in two ends of the roll core 50 respectively for the user to use both hands to manually grip to support the roll core 50 while the roll core 50 is rotated for unwinding the film previously wound on the roll core 50. It is best seen in Fig. 9.
  • the arcuate segments 22 may be axially oriented as shown in Fig. 7 or circumferentially oriented, as shown in Fig. 8.
  • the holder body 20 further provides a plurality of spaced-apart, axially-directed stiffening ribs 42.
  • the handle 10 further comprises an integral, outwardly directed flange 30 positioned at a proximal end of the holder body 20 and preferably provides a peripheral stiffening lip 32.
  • This flange 30 preferably provides a plurality of integral spaced-apart corner ears 34 which extend radially outwardly, as clearly shown in Figs. 1 to 3.
  • an integral end wall 40 is positioned at a distal end of the holder body 20, and may be fully closed (Fig. 4), or it may provide a finger access aperture (Fig. 5). The holder body 20 so it may be unrolled as is shown in Fig. 6.
  • This seam preferably incorporates a means for sealing 26 the seam 24 such as the embossed dimples 28' and corresponding surface depressions 28" as shown in Fig. 6.
  • a means for sealing 26 the seam 24 such as the embossed dimples 28' and corresponding surface depressions 28" as shown in Fig. 6.
  • a proximal portion 21 of the holder body 20 is generally non-tapered while a distal portion 23 of the holder body 20 is tapered inwardly.
  • the distal tapered portion 23 is sized so that it provides a sliding fit within the roll core 50, and the proximal non-tapered portion 21 provides a compression fit within the roll core 50.
  • the inner diameter of certain standard core rolls is exactly 3 inches.
  • the holder body 20 is approximately 3 inches in length.
  • the proximal portion 21 of the holder body 20 is preferably between 3-1/16 and 3-1/64 inches in diameter for a distance of about 1.5 inches from the flange 30 measured axially. For the distal portion 1.5 inches the holder body 20 tapers uniformly to 2-3/4 inches. Other dimensions may be used as well to achieve a handle that is easily slipped into the roll core and which is secured in it, as shown in Figs. 1 to 10.
  • the inventive device may comprise primarily the holder body 20 with circumferentially directed arcuate ribs 22 as previously stated.
  • the flange 30 may comprise several small tabs 32.
  • the compressive flexing of the holder body 20 when inserted into the roll core 50 is primarily accomplished when the stiffening ribs 42 move radially inwardly. This causes a strong spring force to apply gripping power to the interior of the roll core 52.
  • a disposable handle 10' for roll core 50 according to a sixth embodiment of the above preferred embodiment of the present invention is illustrated, wherein the handle 10' also comprises a hollow holder body 20' and a flange
  • the holder body 20' is a generally circular side wall made by injection molding, vacuum forming or spin molding.
  • the hollow holder body 20' which defines a handle chamber 200' extended from a proximal end to a distal end thereof, further has a plurality of side-by-side side wall arcuate segments 22' and a plurality of stiffening ribs 42' formed longitudinally around the holder body 20', wherein the stiffening ribs 42' are positioned spacedly apart that separate the plurality of arcuate segments 22' into groups of resilient rotor support 220' adapted for compressive constraint within the roll core 50 and derives from such compressive constraint.
  • each group of rotor support 220' there are totally six stiffening ribs 42' separating eighteen arcuate segments 22' into six rotor supports 220' equally spaced apart that each contains preferably three arcuate segments 22'.
  • the six rotor supports 220' substantially are in contact with more than 80% of the inner surface of the roll core 50 so as to well support the roll core 50 in a balance manner.
  • the three arcuate segments 22' of each group of rotor support 220' are constructed in continuous wave form to provide three Arc-shaped smooth and round bearing surfaces, as shown in the Figs. 11 and 13.
  • these bearing surfaces of the arcuate segments 22' function just like the ball bearings that provides a frictionless smooth contact with respect to the inner surface of the roll core 50 while well supporting the roll core 50 substantially through such eighteen linear contacts of the accurate segments 22', so as to enable the roll core 50 to smoothly rotate about the handle 10'.
  • each stiffening ribs 42' must be deeper than the curvature of all the arcuate segments 22'. Such arrangement renders each stiffening ribs 42' to provide an outward spring bias deflection effect with respect to the neighboring rotor supports 220'.
  • Such spring bias deflection effect enables the two groups of rotor support 220' positioned at two sides of a particular stiffening rib 42' towards move together to reduce the distance between the two rotor supports 220' so as to substantially reduce the outer diameter of the holder body 20' adapted for fitting into various sizes of roll core 50, varying from 2.989 inches to 3.060 inches.
  • each of the arcuate segments 22 may further flex to form a smaller curvature of arc, thereby diminishing the overall outer diameter of the holder body 20.
  • the spring bias deflection effect also renders the holder body 20' to absorb the pressure from the roll core 50, especially during the rotation of the roll core 50, so as to avoid unwanted injury to the finger joints of the user's hands.
  • the uneven pulling force may cause the roll core 50 vibrates up and down or left or right with respect to the user's hands.
  • the vibrating force of the roll core 50 will substantially absorbed by moving the respective rotor supports 220' towards each other due to the spring bias deflection effect so that less vibration or shock will be transferred to the user's holding hands.
  • the holder body 20' has a proximal portion 21 ' longitudinally extended from the flange 30' to a middle portion of the holder body 20' and a distal portion 23' longitudinally extended from the proximal portion 21 ' to the end wall 40' of the holder body 20' to form a supporting portion.
  • the proximal supporting portion 21 ' is generally non-tapered that the arcuate segments 22' are longitudinally extended parallel to the axis of the holder body 20' so that, as shown in Figs. 10, 12 and 13, the bearing surfaces of the arcuate segments 22' of the rotor supports 220' of the holder body 20' are smoothly in linear contact with the inner surface of the roll core 50 for smooth rotation correspondingly and well supporting all around evenly.
  • the proximal non-tapered portion 21 ' provides a compression fit within the roll core 50.
  • the holder body 20' is approximately 3 inches in length.
  • the proximal portion 21 ' of the holder body 20' is preferably made slightly bigger, such as between 3-1/16 and 3-1/64 inches, in diameter for a distance of about 1.5 inches from the flange 30' measured axially.
  • the distal portion 23' of the sixth alternative mode of the preferred embodiment equally reduces its outer diameter to form a finger-holder portion and defines a step shoulder 24' between the proximal supporting portion 21 ' and the distal finger-holder portion 23'.
  • the distal portion 23' which has a length of 1.5 inches is preferably having an outer diameter of 2-3/4 inches uniformly.
  • the distal finger-holder portion 23' has a size smaller than the inner diameter of the roll core 50 so that a circumferential air gap is defined around the distal finger-holder portion 23' to provide a cushion effect and renders the distal portion 23' has no substantial contact with the inner surface of the roll core 50 during the rotation of the roll core 50 with respect to the handles 10' supported at two ends thereof, as shown in Fig. 12. Therefore, the user's finger tips are capable of resting at the distal finger-holder portion 23' inside the holder body 20' while hand supporting the handles 10' and the roll core 50 to avoid heat transferred to the user's hand and fingers directly and thus prevent from getting burnt. Moreover, the distal finger-holder portion 23' also balances the strength of the fingers of the user so the holder body 20' can thus be pushed and held evenly.
  • the flange 30' of the handle 10' is an integral and outwardly extended periphery wall positioned around a proximal end of the holder body 20'.
  • the flange preferably provides a peripheral stiffening lip 32' and a plurality of integral spaced-apart corner ears 34' which extend radially outwardly at four corners respectively of the stiffening lip 32, as embodied in Figs. 11 and 13.
  • an integral end wall 40 is positioned at a distal end of the holder body 20.
  • each of the corner ears 34' has an indention button 341 ' projected inwardly thereon to reinforce the corner ear 34'.
  • buttons may bias against the end side of the film roll 51 and/or roll core 50 so as to prevent the holder body 20' from over inserted into the open end of the roll core 50 to ensure smooth rotation of the roll core 50 and to prevent the stiffening lip 32' to be engaged with the film roll 51 that may block the rotation of the roll core 50.
  • a plurality of indented tips 321 ' are spacedly provided thereon, which not only reinforce the stiffening lip 32' but also arranged to generally bias against the roll core 50 so as to ensure a smooth rotation of the roll core 50 with respect to the handles 10' and prevent the holder body 20' from over inserted into the open end of the roll core 50.
  • Two claw notches 342' are formed at two sides of each of the corner ears 34' respectively, so that when the user uses his or her hand to hold the handle for rotatably supporting the roll core 50, the user's thumb can rest on the respective claw notch 342' to ensure firmly gripping and holding the handle 10' during the relatively rotation of the roll core 50.
  • the handle 10, 10' enables holding a spinning or roll core 50 without finger contact so that friction burns are avoided. Due to the arrangement of the stiffening ribs 42, 42' between the arcuate segments 22, 22', the arcuate segments 22, 22' provide spring-like action which absorbs vibration forces which would otherwise be passed to the hands.
  • the low friction material used in construction of the invention enables the roll core 50 to slip as it rolls, yet also enables holding the roll core 50 securely.
  • the present invention is preferably light in weight such that the total weight is not significantly changed by using the handles 10, 10'.
  • the holder body 20, 20' of the handle 10 is approximately 0.050 inch or less in thickness.
  • the cost of the handles 10, 10' is insignificant allowing them to be discarded after use that renders the handle 10 a disposable handle.
  • the flanges may be used as a brake against the roll core 50, and otherwise protects the hands from burns.

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  • Unwinding Webs (AREA)

Abstract

L'invention porte sur un manchon de retenue (10, 10') conçu pour s'adapter dans une extrémité ouverte d'un mandrin (50) afin de supporter ce dernier, le mandrin pouvant tourner par rapport au manchon de retenue. Le manchon de retenue est formé d'un corps de retenue (20, 20') creux pourvu d'une pluralité de segments courbes (22, 22') juxtaposés à parois latérales et d'une pluralité de nervures de renforcement (42, 42' formées longitudinalement autour du corps de retenue. Les nervures de renforcement (42, 42') sont espacées les unes autres de façon à séparer la pluralité de segments courbes sous forme de groupes de supports (220') rotatifs résilients adaptés pour exercer une contrainte compressive dans le mandrin permettant à ce dernier de tourner doucement par rapport au corps de retenue. Le manchon de retenue comprend également un rebord fixe (32, 32') s'étendant radialement et vers l'extérieur depuis une extrémité proximale du corps de retenue.
PCT/US2002/002754 2001-01-29 2002-01-29 Manchon de retenue pour mandrin WO2002060795A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2002255492A AU2002255492B2 (en) 2001-01-29 2002-01-21 Handle for roll core
CA002436094A CA2436094C (fr) 2001-01-29 2002-01-29 Manchon de retenue pour mandrin
JP2002560955A JP3955820B2 (ja) 2001-01-29 2002-01-29 ロールコア用ハンドル
NZ527758A NZ527758A (en) 2001-01-29 2002-01-29 Handle for roll core
EP02724892A EP1365982A4 (fr) 2001-01-29 2002-01-29 Manchon de retenue pour mandrin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/772,398 US20010032904A1 (en) 2000-01-31 2001-01-29 Holders for a roll core
US09/772,398 2001-01-29

Publications (1)

Publication Number Publication Date
WO2002060795A1 true WO2002060795A1 (fr) 2002-08-08

Family

ID=25094931

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/002754 WO2002060795A1 (fr) 2001-01-29 2002-01-29 Manchon de retenue pour mandrin

Country Status (6)

Country Link
US (1) US20010032904A1 (fr)
EP (1) EP1365982A4 (fr)
JP (1) JP3955820B2 (fr)
CA (1) CA2436094C (fr)
NZ (1) NZ527758A (fr)
WO (1) WO2002060795A1 (fr)

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EP2635514B1 (fr) 2010-11-05 2016-11-30 Sonoco Development, Inc. Adaptateur de partie centrale à centrage automatique et procédé
US9272870B2 (en) 2013-12-17 2016-03-01 Pratt Corrugated Holdings, Inc. Braking wrap dispenser
US10150639B2 (en) 2016-07-20 2018-12-11 Pratt Corrugated Holdings, Inc. Wrap dispenser with flat rim cap
US10287122B2 (en) * 2017-03-09 2019-05-14 Pratt Corrugated Holdings, Inc. Braking film dispenser with lobes
USD907473S1 (en) * 2019-03-08 2021-01-12 Vitec Imaging Solutions Uk Ltd Coupler for paper rolls
USD983555S1 (en) 2019-11-15 2023-04-18 Pratt Corrugated Holdings, Inc. Wrap dispenser with ribbed core
US11203509B2 (en) 2019-11-15 2021-12-21 Pratt Corrugated Holdings, Inc. Wrap dispenser

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JP3955820B2 (ja) 2007-08-08
CA2436094A1 (fr) 2002-08-08
EP1365982A4 (fr) 2006-04-26
EP1365982A1 (fr) 2003-12-03
NZ527758A (en) 2005-10-28
US20010032904A1 (en) 2001-10-25
CA2436094C (fr) 2008-09-23
JP2005518319A (ja) 2005-06-23

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