EP1728747B1 - Sheet dispenser - Google Patents
Sheet dispenser Download PDFInfo
- Publication number
- EP1728747B1 EP1728747B1 EP20050104738 EP05104738A EP1728747B1 EP 1728747 B1 EP1728747 B1 EP 1728747B1 EP 20050104738 EP20050104738 EP 20050104738 EP 05104738 A EP05104738 A EP 05104738A EP 1728747 B1 EP1728747 B1 EP 1728747B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- slotted bar
- fastening means
- horizontal shaft
- elongated fastening
- 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.)
- Not-in-force
Links
Images
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
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/0006—Article or web delivery apparatus incorporating cutting or line-perforating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/10—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with devices for breaking partially-cut or perforated webs, e.g. bursters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T225/00—Severing by tearing or breaking
- Y10T225/30—Breaking or tearing apparatus
- Y10T225/393—Web restrainer
Definitions
- the invention relates to a dispensing system for dispensing single sheets from a roll of a continuous web of plastic cushioning material containing transversal lines of perforations defining the single sheets, horizontally mounted on a support.
- the invention relates to a system comprising a slotted bar wherein positioning of the plastic material through the slot facilitates the single-hand removal of discrete sheets of said material.
- Plastic cushioning materials such as thin sheets of expanded plastic materials or Bubble Wrap®, are routinely used for the protection of fragile products in particular during shipping.
- Plastic cushioning materials are generally supplied in the form of rolls of continuous webs so that individual sheets of any length can be cut on demand.
- some applications require the use of sheets having a fixed length.
- the most common form of supply is a box containing discrete pre-cut sheets. So far the replacement of boxes of single pre-cut sheets with rolls of continuous webs of materials having single sheets separated by perforations has been hampered by the difficulty of reliably removing single sheets from a roll mounted on a stand in a fast and effortless manner.
- US 5,651,487 and US 6,805,271 offer two alternative solutions to this problem. Both solutions are specifically directed to the single-hand removal of paper towels and are ill suited for the use with plastic cushioning materials due to the excessive friction that the devices described in the aforementioned documents would exert on a plastic cushioning material being unwound.
- a dispensing system suitable for plastic cushioning materials must take into consideration specific characteristics of these materials.
- the first one is the wide range of roll widths plastic cushioning materials come in.
- the most common widths for cushioning materials range from 300 mm to 1,500 mm, but widths as low as 100 mm or as high as 2,000 mm are not uncommon. Therefore the design of the dispensing system must be such that it can be easily transposed to all different sizes and, preferably, that one device can dispense materials of different widths although selected from a restricted range.
- the second characteristic that differentiates plastic cushioning materials from paper towels is the low resistance of plastic cushioning materials to longitudinal tearing. Depending on the direction of the applied force during the sheet removal operation plastic cushioning materials may tear along the length of the roll rather than across the perforation line causing losses of time and material.
- a first object of the present invention is a dispensing system for dispensing single sheets from a roll of a continuous web of plastic cushioning material containing transversal lines of perforations defining the single sheets (a roll of pre-perforated plastic cushioning material), said dispensing system comprising:
- a second object is a dispenser of single sheets of plastic cushioning material from a roll of pre-perforated plastic cushioning material, said dispenser comprising:
- said hanging positions are suitably set with respect to the horizontal shaft so that contact between the slotted bar and the roll surface would occur at an angle of 45° ⁇ 25° with respect to the vertical diameter of the roll.
- a third object is a method for dispensing single sheets of pre-perforated plastic cushioning material from a roll, said method comprising:
- Fig. 1 is a perspective view of the dispensing system of the present invention.
- Fig. 2 is a perspective view of a dispenser according to one embodiment of the present invention.
- Fig. 3 is a partial cross-sectional view of the slotted bar of the invention in a resting state (A, full line) and when in operation, during the roll unwinding step (B, dotted line)
- Fig. 4 is an enlarged view of the slotted bar of the present invention.
- the dispensing system 1 of the present invention is shown in Figure 1 in use with a roll of pre-perforated plastic cushioning material 4.
- the roll of plastic cushioning material consists of a continuous web of single sheets 5 separated by perforations 9, the web being wrapped around a cardboard core (not shown).
- the pre-perforated, or serrated, roll of plastic cushioning material 4 is mounted on a horizontal shaft 3 supported by a holding device. Said roll can freely rotate around the shaft or, alternatively, the roll can be integral with the shaft and the shaft can freely rotate in the holding device.
- the leading edge 8 of the cushioning material wound on the roll is threaded through a slot 16 of the slotted bar 10, transversely positioned across the width of roll 4 and in contact therewith.
- the size of the slot 16 is suitably designed, in width and in height, to let the web of cushioning material be threaded therethrough without difficulties.
- Elongated fastening means 6 and 6a join the side edges of slotted bar 10 to respective hanging positions 7 and 7a upward with respect to the surface of roll 4.
- the distance of said hanging positions 7 and 7a from horizontal shaft 3 is equal to or slightly more than the length of elongated fastening means 6 and 6a.
- slotted bar 10 is connected to holding device 2 by means of elongated fastening means 6 and 6a which join the side edges of the slotted bar 10 to hanging positions 7 and 7a positioned above the surface of roll 4.
- the elongated fastening means 6 and 6a can be flexible wires or chains, such as preferably metallic small chains, or rigid rods. Slotted bar 10 however should be able to swing freely. For instance from a first "engaged” position in contact with the roll of plastic material (as shown in Fig. 2 ) to a second "raised” position (not shown) when a finished roll has to be removed and a new roll is to be mounted on shaft 3. When no roll is mounted on the shaft the possibility to swing will allow slotted bar 10 to be kept vertical by the gravity force.
- the elongated fastening means 6 and 6a therefore can be rigid rods but need anyway to be fastened to the dispensing device by a flexible joint, i.e. a joint that allows the elongated fastening means to swing relative to the dispensing device.
- slotted bar 10 is also free to pivot about its longitudinal axis.
- Position A full line in Figure 3 shows a detail of the dispensing system 1 of the invention in its resting state, i.e. when no sheets of plastic cushioning material are being removed from roll 4. In this state slotted bar 10 rests on the surface of roll 4 forming an angle ⁇ with elongated fastening means 6 and 6a.
- Position B shows the dispensing system in operation, i.e. when the roll is being unwound. Angle ⁇ should not be ⁇ 0° or ⁇ 180°.
- the slotted bar should not be able to pivot about its longitudinal axis by an angle ⁇ ⁇ 10° and ⁇ 170°, more preferably by an angle ⁇ ⁇ 20° and ⁇ 160°, and even more preferably by an angle ⁇ ⁇ 30° and ⁇ 150°.
- the slotted bar 10 is composed of two bars 11 and 12, defined by a length I b. Said bars are kept at a fixed distance by two sets of side connectors 13 and 13a placed on opposite ends of the bars. Each set of connectors is composed of a first plate (14 and 14a) in direct contact with each of the bars and of a second plate (15 and 15a) adjacent to the first one and facing away from the bars. Elongated fastening mean 6 is joined to first plate 14 on the side facing second plate 15, that is it is held between the two plates.
- elongated fastening mean 6a is joined to plate 14a and held between plate 14a and plate 15a.
- a first bolt 17 passing through both plates 14 and 15 secures said plates to one side of bar 11.
- a second bolt 18 secures plates 14 and 15 to one side of bar 12.
- bolts 17a and 18a secure the second connector to the other end of bars 11 and 12 respectively.
- Elongated fastening means 6 and 6a are connected to first plates 14 and 14a in such a way that they are free to rotate, thereby allowing the pivoting of slotted bar 10 about its longitudinal axis.
- the presence of bolts 17 and 18 (and 17a and 18a) will limit the rotation to an angle of greater than 0° and less than 180°.
- Bars 11 and 12 have a polygonal cross-section, preferably square or rectangular as shown in Figures 3 and 4 .
- bars 11 and 12 and consequently of slot 16, will depend on the width, or range of widths, of the sheets to be dispensed.
- bars 11 and 12 should have a length (I b ) slightly exceeding the maximum width of the sheets to be dispensed. Suitable lengths for bars 11 and 12 range from 150 mm up to 2,500 mm, preferably from 200 mm to 2,100 mm.
- bars 11 and 12 The other two dimensions of bars 11 and 12, that is their height and width, will be selected in order to obtain a sufficently rigid slotted bar 10 to properly perform. Generally, they will depend on several factors such as the length of the bars and the material making the bars. Typical dimensions for both the height and the width of bars 11 and 12 are from 0.5 to 10 cm, preferably from 1 to 8 cm and even more preferably from 1 to 6 cm.
- Slotted bar 10 is preferably made of resilient materials that provide strength to the structure such as metals, reinforced plastics, wood and the like.
- the height of slot 16 that is the distance between bars 11 and 12, will be determined by the thickness of the plastic cushioning material to be dispensed, in particular it will be greater than the thickness of the thicker material to be dispensed.
- the height of slot 16 will be from 0.5 to 30 mm greater, preferably from 0.5 to 20 mm greater than the thickness of the thicker material to be dispensed.
- Plastic cushioning materials have thicknesses ranging from 0.5 to 10 mm in the case of expanded polyolefin materials and from 2 to 20 mm in the case of cellular materials such as Bubble Wrap®. Typical values for the height of slot 16 are from 1 to 50 mm, from 1 to 40 mm, from 2 to 30 mm, from 5 to 25 mm.
- the length of the elongated fastening means 6 and 6a should be equal or slightly less than the distance between the hanging positions 7 or 7a and the horizontal shaft 3.
- the difference between the length of the elongated fastening means and the distance between the hanging positions and the shaft should be less than the radius of the core of the roll being mounted on said shaft.
- the hanging positions 7 and 7a are set with respect to the horizontal shaft 3 so that contact between the slotted bar 10 and the surface of the roll 4 occurs in the sector at an angle of 45° ⁇ 25° with respect to the vertical diameter of the roll.
- Holding device 2 is shown in Figure 2 in the form of an A-shaped stand. These stands are commonly used in industrial environments, where a wide range of widths, up to the largest ones, is used. Other designs are however possible.
- an alternative design particularly suited for use in conjunction with narrow webs of plastic cushioning material, comprises a holding device for supporting the shaft on which the roll of plastic cushioning material is mounted, said holding device being attached to the underside of a counter and/or cabinet.
- the holding device could be in the form of a U-shaped bracket wherein each end of the U is designed to hold one end of the core of the roll or alternatively a shaft could be axially extended through the center of the core and mounted at its ends between the U-shaped bracket.
- the slotted bar, through the elongated fastening means, could be engaged either with the U-shaped bracket or alternatively to the underside of the counter and/or cabinet.
- slotted bar 10 could be attached through elongated fastening means 6 and 6a to upward hanging positions 7 and 7a fixed, for instance, on a wall and a movable and suitably sized holding device 2 can then be positioned in such a way to cooperate therewith to give the dispenser of the invention.
- the roll of plastic cushioning material is firstly mounted on the shaft 3, which is then engaged with holding device 2. These operations are facilitated by the fact that slotted bar 10 can be lifted up and away from shaft 3. Once the roll is supported on the holding device and slotted bar 10 is positioned across and in contact with roll 4, the free edge 8 of the web of plastic cushioning material is threaded through slot 16 to an extent that a user can grip the extending sheet.
- slotted bar 10 is positioned transversely across the direction of unreeling of roll 4.
- the dispensing system 1 of the invention can effectively perform its function even when slotted bar 10 is positioned against the direction of unreeling of roll 4.
- the friction between slotted bar 10 and the sheets passing through slot 16 slows at least partially the unrolling motion, thereby increasing the control that the user has on the number of sheets being unrolled.
- the desired number of sheets is withdrawn from the roll, such that the perforation line to be torn is spaced away form the bar in contact with the surface of the roll, the desired number of sheets is pulled downward and slightly at an angle. This pulling motion serves to pin the bar facing the user into braking contact with the exterior surface of roll 4.
- the braking action prevents the roll from rotating and also concentrates the force of the tearing motion to the perforations to cause the perforation to tear efficently and without causing any longitudinal tearing of the sheets.
- the braking effect of the slotted bar 10 eliminates the unrolling of unwanted sheets of plastic material during the tearing operation.
- the dispensing system and the dispensing device of the invention enable a user to reliably dispense only the desired number of sheets from a continuous web of pre-perforated plastic cushioning material with the use of one hand, without unreeling unwanted lengths of material and without causing the longitudinal tearing of the same.
Landscapes
- Buffer Packaging (AREA)
- Unwinding Webs (AREA)
- Manufacturing Of Electric Cables (AREA)
- Vending Machines For Individual Products (AREA)
- Photographic Developing Apparatuses (AREA)
Abstract
Description
- The invention relates to a dispensing system for dispensing single sheets from a roll of a continuous web of plastic cushioning material containing transversal lines of perforations defining the single sheets, horizontally mounted on a support. In particular the invention relates to a system comprising a slotted bar wherein positioning of the plastic material through the slot facilitates the single-hand removal of discrete sheets of said material.
- Plastic cushioning materials, such as thin sheets of expanded plastic materials or Bubble Wrap®, are routinely used for the protection of fragile products in particular during shipping. Plastic cushioning materials are generally supplied in the form of rolls of continuous webs so that individual sheets of any length can be cut on demand. However some applications require the use of sheets having a fixed length. In these cases the most common form of supply is a box containing discrete pre-cut sheets. So far the replacement of boxes of single pre-cut sheets with rolls of continuous webs of materials having single sheets separated by perforations has been hampered by the difficulty of reliably removing single sheets from a roll mounted on a stand in a fast and effortless manner.
- Typical stands for rolls of bulky materials, such as paper towels, to be used in in working shops or garages, generally consist of a base supporting a horizontal shaft, the roll being mounted on the shaft. Most of the times removing one single sheet from the roll without unreeling it requires the use of both hands: one for holding the roll and one for pulling the sheet. This is extremely inconvenient, in particular when the user has its hands wet or occupied.
US 5,651,487 andUS 6,805,271 offer two alternative solutions to this problem. Both solutions are specifically directed to the single-hand removal of paper towels and are ill suited for the use with plastic cushioning materials due to the excessive friction that the devices described in the aforementioned documents would exert on a plastic cushioning material being unwound. - Furthermore a dispensing system suitable for plastic cushioning materials must take into consideration specific characteristics of these materials. The first one is the wide range of roll widths plastic cushioning materials come in. The most common widths for cushioning materials range from 300 mm to 1,500 mm, but widths as low as 100 mm or as high as 2,000 mm are not uncommon. Therefore the design of the dispensing system must be such that it can be easily transposed to all different sizes and, preferably, that one device can dispense materials of different widths although selected from a restricted range.
- The second characteristic that differentiates plastic cushioning materials from paper towels is the low resistance of plastic cushioning materials to longitudinal tearing. Depending on the direction of the applied force during the sheet removal operation plastic cushioning materials may tear along the length of the roll rather than across the perforation line causing losses of time and material.
- Accordingly, there is a need in the art for a system to dispense single sheets of pre-perforated plastic cushioning materials without the limitations of the prior art systems.
- A first object of the present invention is a dispensing system for dispensing single sheets from a roll of a continuous web of plastic cushioning material containing transversal lines of perforations defining the single sheets (a roll of pre-perforated plastic cushioning material), said dispensing system comprising:
- a device for holding a horizontal shaft on which said roll can be rotatably mounted on; and
- a slotted bar, wherein the length and height of the slot are determined by the width and thickness of the material of the roll that should be dispensed, said slotted bar being provided at its side edges with elongated fastening means devised to join the side edges of said slotted bar to respective upward hanging positions in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, wherein the length of said elongated fastening means is equal to or slightly less than the distance between the hanging positions and the horizontal shaft.
- A second object is a dispenser of single sheets of plastic cushioning material from a roll of pre-perforated plastic cushioning material, said dispenser comprising:
- a device for holding a horizontal shaft;
- a roll of pre-perforated plastic cushioning material rotatably mounted on said shaft, the free edge of such a roll being threaded through the suitably sized slot of a slotted bar laying on the roll surface;
- said slotted bar being provided at its side edges with elongated fastening means, joining the side edges of said slotted bar to respective upward hanging positions in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means being of a length equal to or slightly less than the distance between the hanging positions and the horizontal shaft.
- In a preferred embodiment said hanging positions are suitably set with respect to the horizontal shaft so that contact between the slotted bar and the roll surface would occur at an angle of 45° ± 25° with respect to the vertical diameter of the roll.
- A third object is a method for dispensing single sheets of pre-perforated plastic cushioning material from a roll, said method comprising:
- mounting a roll of pre-perforated plastic cushioning material on a horizontal shaft held by a dispenser in such a way that the roll can freely rotate about its longitudinal axis;
- threading the free edge of the roll downwardly through the suitably sized slot of a slotted bar, said slotted bar being provided at its side edges with elongated fastening means, joining the side edges of said slotted bar to respective upward hanging positions in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means being of a length equal to or slightly less than the distance between the hanging positions and the horizontal shaft; and
- pulling the web through the slot until the perforated line defining a sheet has passed the slot and then pulling said web downwardly thus separating the sheet along the perforation line without tearing the web longitudinally.
-
Fig. 1 is a perspective view of the dispensing system of the present invention. -
Fig. 2 is a perspective view of a dispenser according to one embodiment of the present invention. -
Fig. 3 is a partial cross-sectional view of the slotted bar of the invention in a resting state (A, full line) and when in operation, during the roll unwinding step (B, dotted line) -
Fig. 4 is an enlarged view of the slotted bar of the present invention. - The dispensing system 1 of the present invention is shown in
Figure 1 in use with a roll of pre-perforatedplastic cushioning material 4. The roll of plastic cushioning material consists of a continuous web of single sheets 5 separated by perforations 9, the web being wrapped around a cardboard core (not shown). The pre-perforated, or serrated, roll ofplastic cushioning material 4 is mounted on a horizontal shaft 3 supported by a holding device. Said roll can freely rotate around the shaft or, alternatively, the roll can be integral with the shaft and the shaft can freely rotate in the holding device. The leading edge 8 of the cushioning material wound on the roll is threaded through aslot 16 of the slottedbar 10, transversely positioned across the width ofroll 4 and in contact therewith. The size of theslot 16 is suitably designed, in width and in height, to let the web of cushioning material be threaded therethrough without difficulties. - Elongated fastening means 6 and 6a join the side edges of slotted
bar 10 torespective hanging positions roll 4. The distance of saidhanging positions - With reference to
Figure 2 , which represents one embodiment of thedispenser 100 of the invention, slottedbar 10 is connected to holding device 2 by means of elongated fastening means 6 and 6a which join the side edges of the slottedbar 10 to hangingpositions roll 4. - The elongated fastening means 6 and 6a can be flexible wires or chains, such as preferably metallic small chains, or rigid rods. Slotted
bar 10 however should be able to swing freely. For instance from a first "engaged" position in contact with the roll of plastic material (as shown inFig. 2 ) to a second "raised" position (not shown) when a finished roll has to be removed and a new roll is to be mounted on shaft 3. When no roll is mounted on the shaft the possibility to swing will allow slottedbar 10 to be kept vertical by the gravity force. The elongated fastening means 6 and 6a therefore can be rigid rods but need anyway to be fastened to the dispensing device by a flexible joint, i.e. a joint that allows the elongated fastening means to swing relative to the dispensing device. - As shown in more detail in
Figure 3 , slottedbar 10 is also free to pivot about its longitudinal axis. Position A (full line) inFigure 3 shows a detail of the dispensing system 1 of the invention in its resting state, i.e. when no sheets of plastic cushioning material are being removed fromroll 4. In this state slottedbar 10 rests on the surface ofroll 4 forming an angle α with elongated fastening means 6 and 6a. Position B (dotted line) shows the dispensing system in operation, i.e. when the roll is being unwound. Angle α should not be ≤ 0° or ≥ 180°. Preferably the slotted bar should not be able to pivot about its longitudinal axis by an angle α ≤ 10° and ≥ 170°, more preferably by an angle α ≤ 20° and ≥ 160°, and even more preferably by an angle α ≤ 30° and ≥ 150°. - A possible manner to join the elongated fastening means 6 and 6a to the slotted
bar 10 in order to ensure the possibility to the bar to pivot as reported, is described inFigure 4 . Theslotted bar 10 is composed of twobars 11 and 12, defined by a length Ib. Said bars are kept at a fixed distance by two sets ofside connectors first plate 14 on the side facingsecond plate 15, that is it is held between the two plates. Similarly, elongated fastening mean 6a is joined toplate 14a and held betweenplate 14a and plate 15a. Afirst bolt 17 passing through bothplates bar 11. Asecond bolt 18 securesplates similar way bolts 17a and 18a secure the second connector to the other end ofbars 11 and 12 respectively. Elongated fastening means 6 and 6a are connected tofirst plates bar 10 about its longitudinal axis. However the presence ofbolts 17 and 18 (and 17a and 18a) will limit the rotation to an angle of greater than 0° and less than 180°. -
Bars 11 and 12 have a polygonal cross-section, preferably square or rectangular as shown inFigures 3 and4 . - The size of
bars 11 and 12, and consequently ofslot 16, will depend on the width, or range of widths, of the sheets to be dispensed. In particular, bars 11 and 12 should have a length (Ib) slightly exceeding the maximum width of the sheets to be dispensed. Suitable lengths forbars 11 and 12 range from 150 mm up to 2,500 mm, preferably from 200 mm to 2,100 mm. - The other two dimensions of
bars 11 and 12, that is their height and width, will be selected in order to obtain a sufficently rigid slottedbar 10 to properly perform. Generally, they will depend on several factors such as the length of the bars and the material making the bars. Typical dimensions for both the height and the width ofbars 11 and 12 are from 0.5 to 10 cm, preferably from 1 to 8 cm and even more preferably from 1 to 6 cm. - Slotted
bar 10 is preferably made of resilient materials that provide strength to the structure such as metals, reinforced plastics, wood and the like. - The height of
slot 16, that is the distance betweenbars 11 and 12, will be determined by the thickness of the plastic cushioning material to be dispensed, in particular it will be greater than the thickness of the thicker material to be dispensed. Typically, the height ofslot 16 will be from 0.5 to 30 mm greater, preferably from 0.5 to 20 mm greater than the thickness of the thicker material to be dispensed. Plastic cushioning materials have thicknesses ranging from 0.5 to 10 mm in the case of expanded polyolefin materials and from 2 to 20 mm in the case of cellular materials such as Bubble Wrap®. Typical values for the height ofslot 16 are from 1 to 50 mm, from 1 to 40 mm, from 2 to 30 mm, from 5 to 25 mm. - The length of the elongated fastening means 6 and 6a should be equal or slightly less than the distance between the hanging
positions - In a preferred embodiment the hanging
positions bar 10 and the surface of theroll 4 occurs in the sector at an angle of 45° ± 25° with respect to the vertical diameter of the roll. - Holding device 2 is shown in
Figure 2 in the form of an A-shaped stand. These stands are commonly used in industrial environments, where a wide range of widths, up to the largest ones, is used. Other designs are however possible. For instance an alternative design, particularly suited for use in conjunction with narrow webs of plastic cushioning material, comprises a holding device for supporting the shaft on which the roll of plastic cushioning material is mounted, said holding device being attached to the underside of a counter and/or cabinet. The holding device could be in the form of a U-shaped bracket wherein each end of the U is designed to hold one end of the core of the roll or alternatively a shaft could be axially extended through the center of the core and mounted at its ends between the U-shaped bracket. The slotted bar, through the elongated fastening means, could be engaged either with the U-shaped bracket or alternatively to the underside of the counter and/or cabinet. - Still alternatively the slotted
bar 10 could be attached through elongated fastening means 6 and 6a toupward hanging positions - To operate the dispensing device of the present invention, the roll of plastic cushioning material is firstly mounted on the shaft 3, which is then engaged with holding device 2. These operations are facilitated by the fact that slotted
bar 10 can be lifted up and away from shaft 3. Once the roll is supported on the holding device and slottedbar 10 is positioned across and in contact withroll 4, the free edge 8 of the web of plastic cushioning material is threaded throughslot 16 to an extent that a user can grip the extending sheet. In general slottedbar 10 is positioned transversely across the direction of unreeling ofroll 4. However the dispensing system 1 of the invention can effectively perform its function even when slottedbar 10 is positioned against the direction of unreeling ofroll 4. The user then pulls the plastic cushioning material throughslot 16 and unrolls the desired number of sheets from theroll 4. In this phase the friction between slottedbar 10 and the sheets passing throughslot 16 slows at least partially the unrolling motion, thereby increasing the control that the user has on the number of sheets being unrolled. When the desired number of sheets is withdrawn from the roll, such that the perforation line to be torn is spaced away form the bar in contact with the surface of the roll, the desired number of sheets is pulled downward and slightly at an angle. This pulling motion serves to pin the bar facing the user into braking contact with the exterior surface ofroll 4. The braking action prevents the roll from rotating and also concentrates the force of the tearing motion to the perforations to cause the perforation to tear efficently and without causing any longitudinal tearing of the sheets. The braking effect of the slottedbar 10 eliminates the unrolling of unwanted sheets of plastic material during the tearing operation. - Thus the dispensing system and the dispensing device of the invention enable a user to reliably dispense only the desired number of sheets from a continuous web of pre-perforated plastic cushioning material with the use of one hand, without unreeling unwanted lengths of material and without causing the longitudinal tearing of the same.
- Although the present invention has been described in connection with the preferred embodiments, it is to be understood that modifications and variations may be utilized without departing from the principles and scope of the invention, as those skilled in the art will readily understand. Accordingly, such modifications may be practiced within the scope of the following claims.
Claims (4)
- A dispensing system (1) for dispensing single sheets (5) from a roll of a continuous web of pre-perforated plastic cushioning material (4), said dispensing system comprising: a device (2) for holding a horizontal shaft (3) on which said roll can be rotatably mounted on; and a slotted bar (10), wherein the length and height of the slot are determined by the width and thickness of the material of the roll that should be dispensed, said slotted bar (10) being provided at its edges with elongated fastening means (6, 6a) devised to join said side edges of said slotted bar to respective upward hanging positions (7, 7a) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, wherein the length of said elongated fastening means (6, 6a) is equal to or slightly less than the distance between the hanging positions (7, 7a) and the horizontal shaft (3).
- A dispenser (100) of single sheets of pre-perforated plastic cushioning material from a roll, said dispenser comprising: a device (2) for holding a horizontal shaft (3); a roll of pre-perforated plastic cushioning material (4) rotatably mounted on said shaft, the free edge (8) of such a roll being threaded through the suitably sized slot (16) of a slotted bar (10) laying on the surface of said roll (4); said slotted bar being provided at its edges with elongated fastening means (6, 6a), joining the side edges of said slotted bar to respective upward hanging positions (7, 7a) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means (6, 6a) being of a length equal to or slightly less than the distance between the hanging positions (7, 7a) and the horizontal shaft (3).
- The dispenser according to claim 2 wherein the hanging positions (7, 7a) are set with respect to the horizontal shaft (3) so that contact between the slotted bar (10) and the surface of the roll (4) occurs at an angle of 45° ± 25° with respect to the vertical diameter of the roll.
- A method for dispensing single sheets of pre-perforated plastic cushioning material from a roll, said method comprising: mounting a roll of pre-perforated cushioning material (4) on a horizontal shaft (3) held by a holding device (2) in such a way that the roll can freely rotate about its longitudinal axis; threading the free edge (8) of the roll downwardly through the suitably sized slot (16) of a slotted bar (10), said slotted bar being provided at its side edges with elongated fastening means (6, 6a), joining the side edges of said slotted bar to respective upward hanging positions (7, 7a) in such a way that said slotted bar can swing and can pivot about its longitudinal axis by an angle greater than 0° and less than 180°, said elongated fastening means (6, 6a) being of a length equal to or slightly less than the distance between the hanging positions (7, 7a) and the horizontal shaft (3); and pulling the web through the slot (16) until the perforated line (9) defining a sheet has passed the slot and then pulling it downwardly thus separating the sheet along the perforation line without tearing the web longitudinally.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT05104738T ATE404485T1 (en) | 2005-06-01 | 2005-06-01 | SHEET DISPENSER |
DE200560008921 DE602005008921D1 (en) | 2005-06-01 | 2005-06-01 | sheet dispenser |
EP20050104738 EP1728747B1 (en) | 2005-06-01 | 2005-06-01 | Sheet dispenser |
ES05104738T ES2314569T3 (en) | 2005-06-01 | 2005-06-01 | SHEET DISTRIBUTOR. |
US11/443,572 US20070007317A1 (en) | 2005-06-01 | 2006-05-31 | Sheet dispenser |
CA 2549364 CA2549364C (en) | 2005-06-01 | 2006-05-31 | Sheet dispenser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20050104738 EP1728747B1 (en) | 2005-06-01 | 2005-06-01 | Sheet dispenser |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1728747A1 EP1728747A1 (en) | 2006-12-06 |
EP1728747B1 true EP1728747B1 (en) | 2008-08-13 |
Family
ID=35197758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20050104738 Not-in-force EP1728747B1 (en) | 2005-06-01 | 2005-06-01 | Sheet dispenser |
Country Status (6)
Country | Link |
---|---|
US (1) | US20070007317A1 (en) |
EP (1) | EP1728747B1 (en) |
AT (1) | ATE404485T1 (en) |
CA (1) | CA2549364C (en) |
DE (1) | DE602005008921D1 (en) |
ES (1) | ES2314569T3 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US429029A (en) * | 1890-05-27 | Roll-paper holder and cutter | ||
US2818221A (en) * | 1955-04-21 | 1957-12-31 | William G Thieman | Dispensing holder for rolled sheet material |
US5727721A (en) * | 1995-11-29 | 1998-03-17 | Guido, Deceased; Joseph Jerome | Flexible web dispenser |
US5681203A (en) * | 1995-12-26 | 1997-10-28 | Arnold; Melvin | Bubble popping device |
US5651487A (en) * | 1996-02-22 | 1997-07-29 | Hansen; Val | Paper towel removal accessory |
EP1392479B1 (en) * | 2000-09-19 | 2005-07-06 | William Holden | Single hand, paper towel sheet dispenser |
US6786377B1 (en) * | 2000-09-19 | 2004-09-07 | Holdenart Inc. | Single hand, paper towel dispenser |
US7090106B2 (en) * | 2003-05-08 | 2006-08-15 | Holdenart, Inc. | Frictional surface apparatus for one handed dispensing of paper sheet segments |
-
2005
- 2005-06-01 ES ES05104738T patent/ES2314569T3/en active Active
- 2005-06-01 DE DE200560008921 patent/DE602005008921D1/en active Active
- 2005-06-01 AT AT05104738T patent/ATE404485T1/en not_active IP Right Cessation
- 2005-06-01 EP EP20050104738 patent/EP1728747B1/en not_active Not-in-force
-
2006
- 2006-05-31 US US11/443,572 patent/US20070007317A1/en not_active Abandoned
- 2006-05-31 CA CA 2549364 patent/CA2549364C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20070007317A1 (en) | 2007-01-11 |
CA2549364A1 (en) | 2006-12-01 |
CA2549364C (en) | 2009-03-24 |
EP1728747A1 (en) | 2006-12-06 |
ATE404485T1 (en) | 2008-08-15 |
DE602005008921D1 (en) | 2008-09-25 |
ES2314569T3 (en) | 2009-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU669452B2 (en) | Plastic bag dispenser and bags therefor | |
US5431279A (en) | Wallboard bundling tape and method | |
EP0865403B1 (en) | Bag separator and dispenser | |
EP0772562B1 (en) | Bag separator and dispenser | |
EP0505700B1 (en) | Plastic bag dispenser and roll of bags for use therein | |
JP2957706B2 (en) | Improved sheet products for use in pop-up dispensers and methods of forming from stretched ribbons | |
CA2212569A1 (en) | Toilet paper or paper towel dispenser | |
AU2005329118A1 (en) | A dispenser for rolled paper webs and a paper product for use in such a dispenser | |
EP1728747B1 (en) | Sheet dispenser | |
CN116157338A (en) | Dispenser with bearings for tension activated deployable sheet material | |
US7350742B1 (en) | Pullthru paper towel dispenser | |
US20070063093A1 (en) | Device and Method for Securing Rolled Paper Media | |
US20110041461A1 (en) | Packaging material dispenser | |
US4796792A (en) | Apparatus for cutting wrapping paper | |
JP4762832B2 (en) | Toilet paper holder | |
US4502621A (en) | Paper dispensing apparatus | |
GB2390357A (en) | Web material dispenser having a plurality of dispensing openings. | |
CN101610958B (en) | Dispenser for film-like materials | |
EP1619140A1 (en) | Package for a roll of foil | |
WO2004014761A1 (en) | Raw fabric roll packing box, and raw fabric roll package product | |
DE10119821B4 (en) | Packaging and packaging equipment (packaging system) | |
GB2440211A (en) | A dispensing container and blank for same | |
US248323A (en) | Device for tearing wrapping-paper from continuous rolled sheets | |
EP0741102A2 (en) | Dispenser for strip material | |
CA2236386A1 (en) | Combination package and dispenser |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA HR LV MK YU |
|
17P | Request for examination filed |
Effective date: 20070504 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: SEALED AIR CORPORATION |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D |
|
REF | Corresponds to: |
Ref document number: 602005008921 Country of ref document: DE Date of ref document: 20080925 Kind code of ref document: P |
|
NLT2 | Nl: modifications (of names), taken from the european patent patent bulletin |
Owner name: SEALED AIR CORPORATION Effective date: 20080917 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081213 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2314569 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081113 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090113 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20090514 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081113 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090601 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090630 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20081114 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20090601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20090214 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20080813 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20160627 Year of fee payment: 12 Ref country code: GB Payment date: 20160627 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20160628 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20160628 Year of fee payment: 12 Ref country code: IT Payment date: 20160627 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 602005008921 Country of ref document: DE |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20170601 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST Effective date: 20180228 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170601 Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180103 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170601 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20180706 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170602 |