EP4046925A2 - Dispositif de maintien et d'enlèvement d'une feuille - Google Patents

Dispositif de maintien et d'enlèvement d'une feuille Download PDF

Info

Publication number: EP4046925A2
Authority: EP; European Patent Office
Prior art keywords: cylindrical element; handle; film; supports; roll
Prior art date: 2021-02-01
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

EP22154228.5A

Other languages

German (de)

English (en)

Other versions

EP4046925A3 (fr

EP4046925C0 (fr

EP4046925B1 (fr

Inventor

Jürgen Kulas

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.)

Individual

Original Assignee

Individual

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.)

2021-02-01

Filing date

2022-01-31

Publication date

2022-08-24

2022-01-31 Application filed by Individual filed Critical Individual

2022-08-24 Publication of EP4046925A2 publication Critical patent/EP4046925A2/fr

2022-11-09 Publication of EP4046925A3 publication Critical patent/EP4046925A3/fr

2025-04-23 Application granted granted Critical

2025-04-23 Publication of EP4046925C0 publication Critical patent/EP4046925C0/fr

2025-04-23 Publication of EP4046925B1 publication Critical patent/EP4046925B1/fr

Status Active legal-status Critical Current

2042-01-31 Anticipated expiration legal-status Critical

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Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B67/00—Apparatus or devices facilitating manual packaging operations; Sack holders
- B65B67/08—Wrapping of articles
- B65B67/085—Wrapping of articles using hand-held dispensers for stretch films
- 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
- B65H16/005—Dispensers, i.e. machines for unwinding only parts of web roll

Definitions

the invention relates to a device for holding and removing a film from a roll, comprising a cylindrical element receiving the roll, the ends of which are connected to handles or have such, a device for adjusting the tension of the film during removal and in the area of the ends of the cylindrical element for the roller in its end regions, wherein the cylindrical element has a first section and a second section that can be adjusted axially relative to this, and at least one of the supports has an at least partially conical geometry for interacting with the roller.
a corresponding device which can also be designated as a stretch winder, is US 2013/0227913 A1 refer to.
spring-loaded braking elements are provided.
Stretch wrappers serve to secure goods to be transported, such as goods arranged on pallets, by wrapping them with a stretch film.
a tube is connected, as welded, to a base plate from which extends an L-shaped arm to the end of which is attached a first handle.
a second handle is located on the the end of the tube opposite the base plate and is connected to a braking device, by means of which a film roll pushed onto the tube can be adjusted in relation to the tension occurring when the film is pulled off. Therefore, depending on whether a left-handed or right-handed person is using the device, a different position must be taken in relation to the item to be wrapped.
a stretch winder after the DE 20 2014 102 068 U1 has an L-shaped handle, which extends from a base, from which, in addition to a shaft rod receiving a film roll, two rollers emanate, between which the film is guided in order to be able to adjust the tension when the film is pulled off.
Corresponding stretch winders are often designed for a single film width, such as 430 mm or 500 mm, so that different devices are used for different roll core lengths.
the present invention is based on the object of further developing a manually operated device of the type mentioned at the outset in such a way that the tension and thus the stretching of the film resulting from the wrapping of goods can be adjusted without any problems.
a further aspect of the invention is to further develop a corresponding device in such a way that it can be used by both a right-handed and a left-handed person without any problems. Irrespective of this, easy handling should be given.
the invention essentially provides that the at least one support, which has the cone-shaped geometry at least in some areas, is adjustable along the longitudinal axis of the cylindrical element and to the section from which the support originates.
a manually operated device for pulling off a film which can be easily adjusted to film widths of different lengths, since the cylindrical element receiving the film roll can be telescoped.
one of the supports which interacts with one of the front areas of the roller, can be adjusted along the longitudinal axis of the telescopic element, so that the pressure acting on the roller between the supports and thus the tension can be adjusted.
the additional support preferably also has a conical or truncated cone-shaped geometry on the roller side, at least in some areas, so that the roller can be easily centered between the supports.
the cone shape also has the advantage that rollers of different diameters can be used.
the conical supports can be referred to as centering cones.
the supports have a dual function, on the one hand centering the film roll and on the other hand adjusting the tension of the film. It is possible to use film rolls with and without a core, an advantage that is given by the centering cone.
the centering cones also offer the possibility of clamping rolls with different core diameters, such as 38 mm, 50 mm, 76 mm as common diameters.
the sections of the cylindrical element that can be adjusted relative to one another can be adjusted axially in a locked manner relative to one another.
a fine adjustment to the width of the roll is carried out by the axially adjustable support, so that the tension can then be specified by further adjustment.
the invention provides that at least one of the sections, in its free end area, is connected to the handle via a rotary joint, the axis of which runs perpendicular to the longitudinal axis of the pipe catch element. However, the invention is not departed from if each section is connected in its free end area to a handle via a rotary joint.
a first joint section of the joint should be connected to the section, preferably in its extension, and the second joint section should merge into the handle, such as a handle, or be designed as such.
the longitudinal axis of the cylindrical element directly intersects the axis of rotation.
the handles By arranging the handles in the immediate end area of the cylindrical element receiving the roll of film, it is also possible to rotate it by 180° without any problems and without having to reposition it. Irrespective of this, the adhesive surface of the film can continue to face the item to be wrapped.
magnets are integrated into the handles, so that the device can be attached to metal shelves, forklifts, pallet trucks, for example, so that the usual lying around on the floor is avoided, so that a source of danger is excluded.
the only figure shows a basic representation of a device 10, by means of which a stretch film is pulled off a roll in order to wrap and thus secure goods, in particular those that are to be transported on pallets.
the device 10 has a cylindrical element 12 that accommodates the roll and consists of sections 14, 16 that can be adjusted in the longitudinal direction relative to one another, which means they can be telescoped relative to one another and have supports 18, 20 in their end regions, between which the roll 20 to be pulled off is centered is fixed.
the supports 18, 20 are designed in the shape of a truncated cone, at least in some areas, as the conical outer surfaces 22, 24 illustrate.
the support 18 - like the support 20 - can be referred to as a centering cone.
the support 20 is fixedly connected to the section 16 and the support 18 is adjustably connected along the section 14 to the latter.
the section 14 has an external thread 26 which interacts with an internal thread (not shown) of the support 18 .
a handle 30, 32 extends from the sections 14, 16 via a joint arrangement 26, 28, which can be pivoted about an axis 34 or 36, which runs perpendicular to the longitudinal axis 38 of the cylindrical element 12 and preferably from this is cut immediately.
axis 34 or 36 which runs perpendicular to the longitudinal axis 38 of the cylindrical element 12 and preferably from this is cut immediately.
the invention also includes the possibility that the axis of rotation 34, 36 is slightly offset from the longitudinal axis 38, as shown in the drawing.
the invention is also not departed from if only one of the sections has an articulation arrangement, ie the handle emanating from the section cannot be pivoted.
the joint arrangement 26, 28 consists of a section 40, 42 connected to the section 14 or 16 of the main body 12 of the device 10, and the section 44, 46 having the handle 30, 32. Furthermore, the handle 30, 32 can rotate about its longitudinal axis be rotatable.
a magnet 48, 50 should be provided as embedded in order to attach the device 10, for example, to a frame, a pallet truck, a forklift or the like, so that lying around on a floor is avoided becomes.
a roll of film is placed on the cylindrical base body 12, which consists of the sections 14, 16, after removing one of the handles 30, 32 or one of the joint arrangements 26, 28 and the adjacent centering cone 18 or 20 Body 12 pushed to then connect the previously removed handle 30, 32 and the pivot assembly 26, 28 with the centering cone with the device 10.
sections 14, 16 are adjusted to the width of the roll where necessary. In this case, a latched connection between the sections 14, 16 or a stepless connection by screwing can take place.
the centering cone 18 is adjusted along the thread 26 in the direction of the roll to such an extent that not only is the desired centering of the roll achieved, but pressure is also exerted on it so that the required tension prevails when the film is pulled off and thus the desired elongation of the film can be achieved when wrapping a product.
the expansion value can be adjusted by means of the centering cone 18 .
the angle of inclination of the device 10 can be optimally adjusted in order to pull off the stretch film and wrap goods. A problem-free use for right- and left-handers is given.
a simple rotation through 180° about an axis running perpendicularly to the longitudinal axis 38 is possible without having to reposition one's hands.
the device 10 can be made of metal, plastic, in particular fiber-reinforced plastic, carbon material or a composite.
Plastic or carbon offers the advantage that there is a significant weight reduction compared to known stretch winders. If the hand stretch winders according to the prior art have a weight in the region of 2 kg, the device 10 according to the invention can have a weight between 0.7 kg and 0.8 kg.
a further advantage of the stretch film dispenser 10 according to the invention can also be seen in the fact that the roll to be drawn off can be without a core, since it is centered by means of the centering cones 18, 20, ie the supports.
the centering cones 18, 20 also offer the possibility of receiving rolls of different diameters.
device 10 can be used for film rolls of different widths.
the axial adjustability of the centering cone 18 offers the possibility of a simple adjustment of the tension of the film to be pulled off and thus its elongation when wrapping goods.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Unwinding Webs (AREA)
Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
Replacement Of Web Rolls (AREA)

EP22154228.5A 2021-02-01 2022-01-31 Dispositif de maintien et d'enlèvement d'une feuille Active EP4046925B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102021102212.6A DE102021102212B4 (de)	2021-02-01	2021-02-01	Vorrichtung zum Halten und Abziehen einer Folie

Publications (4)

Publication Number	Publication Date
EP4046925A2 true EP4046925A2 (fr)	2022-08-24
EP4046925A3 EP4046925A3 (fr)	2022-11-09
EP4046925C0 EP4046925C0 (fr)	2025-04-23
EP4046925B1 EP4046925B1 (fr)	2025-04-23

Family

ID=80123467

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP22154228.5A Active EP4046925B1 (fr)	2021-02-01	2022-01-31	Dispositif de maintien et d'enlèvement d'une feuille

Country Status (2)

Country	Link
EP (1)	EP4046925B1 (fr)
DE (1)	DE102021102212B4 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102022206588A1 (de)	2022-06-29	2024-01-04	Stefan Bischoff	Vorrichtung zum Auf- und Ausrollen einer aufgerollten Materialbahn
GB2637325A (en) *	2024-01-17	2025-07-23	Lindum Packaging Ltd	Hand-held dispenser for wrapping material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2121001A (en)	1982-05-21	1983-12-14	Kenneth S E Orpen	Packaging film dispensers
US20130227913A1 (en)	2012-03-01	2013-09-05	Huang HARRISON	Length-adjustable wrap film dispenser
DE202014102068U1 (de)	2014-05-05	2014-05-20	Hsiu-Man Yu Chen	Stretchwickler

Family Cites Families (7)

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US833492A (en)	1906-02-19	1906-10-16	Launy Van Horn	Gas-fixture and mirror-support.
US6926225B1 (en) *	2003-08-22	2005-08-09	Craig J. Powers	Plastic wrap dispensing apparatus
KR101416660B1 (ko) *	2009-07-16	2014-08-06	스트라 시스템 주식회사	스트레치 필름 권취 조작구, 스트레치 필름 권취 장치, 스트레치 필름
US20110041458A1 (en) *	2009-08-19	2011-02-24	Hsiu-Man Yu Chen	Stepless adjustable film packing device
US20120031045A1 (en) *	2010-08-09	2012-02-09	Mark Matthew Castro Rodriguez	Film Applicator
US9540211B2 (en) *	2015-05-27	2017-01-10	Hsiu-Man Yu Chen	Stepless adhesive film dispenser
US10023342B1 (en) *	2017-06-29	2018-07-17	Ryan Malin	Pallet wrapping device

2021
- 2021-02-01 DE DE102021102212.6A patent/DE102021102212B4/de active Active
2022
- 2022-01-31 EP EP22154228.5A patent/EP4046925B1/fr active Active

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2121001A (en)	1982-05-21	1983-12-14	Kenneth S E Orpen	Packaging film dispensers
US20130227913A1 (en)	2012-03-01	2013-09-05	Huang HARRISON	Length-adjustable wrap film dispenser
DE202014102068U1 (de)	2014-05-05	2014-05-20	Hsiu-Man Yu Chen	Stretchwickler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102022206588A1 (de)	2022-06-29	2024-01-04	Stefan Bischoff	Vorrichtung zum Auf- und Ausrollen einer aufgerollten Materialbahn
GB2637325A (en) *	2024-01-17	2025-07-23	Lindum Packaging Ltd	Hand-held dispenser for wrapping material
WO2025153231A1 (fr)	2024-01-17	2025-07-24	Lindum Packaging Ltd	Distributeur portatif pour matériau d'emballage

Also Published As

Publication number	Publication date
DE102021102212A1 (de)	2022-08-04
DE102021102212B4 (de)	2026-01-15
EP4046925A3 (fr)	2022-11-09
EP4046925C0 (fr)	2025-04-23
EP4046925B1 (fr)	2025-04-23

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