GB2375729A - A cutting apparatus for producing partially-joined segments - Google Patents
A cutting apparatus for producing partially-joined segments Download PDFInfo
- Publication number
- GB2375729A GB2375729A GB0112532A GB0112532A GB2375729A GB 2375729 A GB2375729 A GB 2375729A GB 0112532 A GB0112532 A GB 0112532A GB 0112532 A GB0112532 A GB 0112532A GB 2375729 A GB2375729 A GB 2375729A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- cutting
- mandrel
- support
- cut
- 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.)
- Granted
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/18—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material
- B26F1/20—Perforating by slitting, i.e. forming cuts closed at their ends without removal of material with tools carried by a rotating drum or similar support
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/20—Cutting beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/20—Cutting beds
- B26D2007/202—Rollers or cylinders being pivoted during operation
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- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Treatment Of Fiber Materials (AREA)
Abstract
A cutting apparatus (1) for cutting at least one sheet, for example in the form of a strip (8) into two or more partially joined pieces for example in the form of pads, which comprises support means (2) and cutting means (7). The support means or the cutting means or the support means and the cutting means are provided with at least one recess (4). In use, the strip (8) is positioned between the support means (2) and the cutting means (7) such that a force is applied to the strip (8) causing a portion thereof to be placed in the or each recess (4) and the strip (8) to be partially cut at the portion contained in the or each recess and to be wholly cut at a portion not contained in the or each recess. The depth of the or each recess preferably lies in the range 50 to 100 žm, and the width of the or each recess preferably lies in the range 0.5 to 1 mm. The or each recess preferably has a substantially rectangular cross section. The or each recess may be formed by a groove. The cutting means preferably cuts the strip in a direction substantially 90{ to the length of the strip.
Description
IMPROVEMENTS IN AND RELATING TO CUTTING MATERIALS
This invention relates to improvements in and relating to cutting 5 materials, and particularly, but not exclusively, to cutting sheets of material into strips and/or cutting strips of material into pads.
Numerous applications exist where it is necessary to cut materials into pieces. For example, in the glass industry pads are used to space apart 10 sheets of glass. These pads may be formed from materials such as cork or foam or a cork/foam laminate. Conveniently, a strip of material is cut into pads which are partially joined to each other. For application to a sheet of glass, the strip may be passed into an applicator machine, such as a Lenhardt applicator machine. In these, a strip of spacer pads is pushed 15 into a position such that one pad protrudes from a part of the machine.
The protruding pad is contacted to the surface of a sheet of glass as it moves through the machine. This causes the pad to be pulled away and separate from the strip of pads. A method of contacting and separating a pad is to use a roller (or rollers) to help maintain the position of the pad 20 and/or glass and join them together. The roller (or rollers) traps the pad between itself and the sheet of glass, and the movement of the glass causes the pad to be pulled away and to separate from the strip of pads.
Other methods may be used. Eventually the pads space the sheets of glass to prevent damage when stacked. Conventionally, such machines have 25 operated with strips of cork/foam laminate pads. Each pad comprises a cork portion to which a layer of foam is laminated. A strip of pads is formed by laminating a strip of cork with a corresponding strip of foam, and cutting the composite strip through the cork and partially through the foam at a number of locations to form a number of pads partially joined to 30 one another. When such a strip of pads is passed through a Lenhardt
applicator machine, the endmost pad to be applied to a sheet of glass is caused to protrude from the end of the strip of pads but is held to the strip by the uncut portion of the foam layer. As the sheet of glass sweeps past the pad and the roller engages with it, the pad is pulled away from the 5 remainder of the strip of pads and the uncut portion of the foam breaks, releasing the pad from the strip. The foam is conventionally of low performance, such that partial cutting thereof is sufficient to allow the uncut portion to break without undue force being necessary. Separation of a pad from a strip of such pads can also be effected by hand.
A problem arises when it is desired to replace the strip of cork/foam laminate pads with a strip of foam only pads. Such foam pads may be of a singular foam construction or a laminate of different foam structures and may be non-adhesive or may have adhesive on one or more faces thereof.
15 The pads may be provided with a backing paper. Such pads are often formed of high performance foam material such that, even with partial cutting, the uncut portion is prone to stretching and is difficult to break away from the remainder of a strip of such pads. This makes such strips of pads difficult to use in the above described applicator machines or 20 manually. To reliably break the uncut portion of such pads it is necessary to make the thickness of this portion very small, which can be difficult to reproduce. Even providing perforations between the pads can lead to stretching rather than breaking.
25 According to a first aspect of the present invention there is provided a cutting apparatus for cutting at least one sheet into two or more partially joined pieces comprising support means and cutting means, the support means or the cutting means or the support means and the cutting means being provided with at least one recess, wherein, in use, the sheet is 30 positioned between the support means and the cutting means such that a
l force is applied to the sheet causing a portion thereof to be placed in the or each recess and the sheet to be partially cut at the portion contained in the or each recess and to be wholly cut at a portion not contained in the or each recess.
The portion of the sheet placed in the or each recess may be pushed or pulled into the recess. The portion of the sheet contained in the or each recess will be partially cut along its thickness, depending on the depth of the recess. The remaining portion or portions of the sheet will be cut 10 throughout the thickness thereof. Two or more partially joined pieces are therefore obtained, the pieces being joined by one or more bridges whose height is less than the thickness of the sheet. It is possible to accurately control the depth of the or each recess, and therefore achieve accurate and reproducible height of the bridges.
The sheet may be cut into two or more partially joined strips. Each strip may be cut into two or more partially joined strips. Each strip may be cut into two or more partially joined pads. This may occur simultaneously with, or prior to, or subsequently to, cutting of the sheet or strip into two 20 or more partially joined strips.
The strips may be wound onto a roll so that they lie substantially in line with themselves and/or adjoining strips. Guiding means may be used to wind the strips onto the roll so that they lie substantially in line. Each 25 strip or some of the strips on the roll may be separately unwound from the roll, breaking away from its or their neighbouring strip or strips during unwinding. The remaining strips preferably remain intact and in place on the roll during this unwinding. This may have significant benefits by negating the need to rewind material(s) into individual strips or rolls prior 30 to further processing and/or use.
The sheet may comprise a strip, which may be cut into two or more partially joined pads.
The sheet may be elongate, e.g. have a length of 50 or 100m or longer.
5 The sheet may have a substantial width, e.g. around lm. Such a sheet may be cut into pieces having a width of, for example, 18 or 250mm, i.e. may be cut into strips. The sheet may have a much smaller width, e.g. around 18 or 250mm. Such a sheet, or strip, may be cut in a direction substantially transverse to the length thereof to form pads. Such a strip 10 may be cut in a direction substantially along the length thereof to form strips, including strips of pads. The term pad is herein intended to include structures which are substantially square in shape, and structures which are substantially rectangular in shape. The latter may have a considerable length in one direction in comparison to the transverse 15 direction. Other shapes may be cut.
The support means or the cutting means is preferably provided with at least three recesses, but could have one or two or four or five or more recesses. Such an apparatus will produce a sheet of partially joined pieces 20 wherein the pieces are joined by three or one or two or four or five or more bridges. Providing two bridges will help to prevent the pieces from twisting as, for example, they protrude from an applicator machine for application to a sheet of glass. Providing three or more bridges will help to prevent such twisting even if one or more of the bridges should break.
25 The depth of the or each recess preferably lies in the range 50 to 100 m, but could be more or less than this depth. When more than one recess is provided, these may have substantially the same depth or may have different depths. The width of the or each recess preferably lies in the range 0.5 to 1 mm, but could be more or less than this width. Different 30 materials and/or different thicknesses of material may require a different
recess depth and/or recess width. When more than one recess is provided, these may have substantially the same width or may have different widths. The or each recess may have a substantially rectangular cross section, or may have a substantially U-shaped cross section or may 5 have a substantially V-shaped cross section, or a differently-shaped cross section. The support means or the cutting means may be provided with one or more grooves or one or more cut-outs which form one or more recesses. 10 The cutting means may cut the sheet in a direction substantially transverse to the length of the sheet, or in a direction substantially parallel to the length of the sheet, or in both the substantially transverse and parallel directions. The support means and the cutting means may act to feed the sheet through the apparatus. The apparatus may be provided with pulling 15 means, or pushing means, or pulling means and pushing means by which the sheet is fed through the apparatus. Alternatively, pulling means, or pushing means, or pulling means and pushing means, external to the apparatus may be provided to feed the sheet through the apparatus. The pulling means/pushing means may pull/push the strip through the 20 apparatus in a direction substantially parallel to the length of the sheet.
The sheet may be cut in a substantially transverse direction to the direction of feed of the sheet through the apparatus, or in a substantially parallel direction to the direction of feed of the sheet through the apparatus, or in both such directions.
The support means may remain stationary whilst the cutting means is moved. Alternatively, the cutting means may remain stationary whilst the support means is moved. Alternatively, the cutting means and the support means may be moved. Such movement(s) may result in movement of the
sheet through the apparatus, without the need for additional pulling or pushing means.
The cutting means may comprise one or more blades. The cutting means 5 may comprise one or more blades provided on one or more plate-like elements. The plate-like elements may be attached together or may be separate from each other. The cutting means may comprise one or more circular blades. The circular blades may be attached together or may be separate from each other. The cutting means may comprise a cutting 10 mandrel with one or more blades incorporated therein or fixed thereto.
The blades may be provided with one or more recesses.
The support means may comprise a support mandrel. The cutting means may be provided on a cutting mandrel. The support mandrel may be 15 provided with one or more recesses which extend around a part of, or the whole of, or substantially the whole of the circumference of the support mandrel. The support mandrel may be provided with one or more recesses which extend axially along a part of, or the whole of, or substantially the whole of the support mandrel. The support mandrel may 20 be provided with one or more recesses which extend spherically around a part of, or the whole of, or substantially the whole of the support mandrel. The cutting mandrel may be provided with one or more recesses which extend around a part of, or the whole of, or substantially the whole of the circumference of the cutting mandrel. The cutting mandrel may be 25 provided with one or more recesses which extend axially along a part of, or the whole of, or substantially the whole of the cutting mandrel. The cutting mandrel may be provided with one or more recesses which extend spherically around a part of, or the whole of, or substantially the whole of the cutting mandrel. The cutting mandrel may be provided with cutting 30 means which extend circumferentially or axially along or spherically
around a part of, or the whole of, or substantially the whole of the cutting mandrel. The cutting means may be provided with one or more recesses.
In one embodiment of the apparatus, the support means may comprise a 5 support mandrel provided with one or more circumferential recesses and axial cutting means may be provided on a cutting mandrel. The axial cutting means may comprise one or more axial blades. In this case, the sheet may be fed through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction 10 substantially transverse to the length thereof. The sheet may comprise a strip, which may be cut into two or more partially joined pads.
In another embodiment of the apparatus, the support means may comprise a support mandrel provided with one or more axial recesses, or one or 15 more groups of one or more axial recesses, and circumferential cutting means may be provided on a cutting mandrel. The circumferential cutting means may comprise one or more circumferential blades. In this case, the sheet may be fed through the apparatus in a direction substantially parallel to the axes of the mandrels, to cut the sheet in a direction substantially 20 transverse to the length thereof. The sheet may comprise a strip which may be cut into two or more partially joined pads. Alternatively, the sheet may be fed through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction substantially parallel to the length thereof. The sheet may thereby be cut 25 into partially joined strips. Each strip, or some or all of the strips together, may then be fed through the apparatus in a direction substantially parallel to the axes of the mandrels, to cut the strip in a direction substantially transverse to the length thereof to form pads.
In another embodiment, the sheet may be simultaneously cut in a direction parallel to the axes of the mandrels and perpendicular to the axes of the mandrel s.
5 The support mandrel and the cutting mandrel may co-operate, in use, to provide a distance between the support mandrel and the cutting means of the cutting mandrel which is less than the thickness of a sheet to be cut.
When the sheet is placed between the mandrels it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in 10 the support mandrel or the cutting mandrel or both, thus allowing partially joined pieces to be formed from the sheet.
The sheet may be provided with a backing sheet. The support mandrel and the cutting mandrel may co-operate, in use, to provide a distance 15 between the support mandrel and the cutting means of the cutting mandrel which is equal to the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the mandrels it will be compressed by the cutting means, to force a portion of the backing sheet, or a portion of the sheet and the backing sheet, into the or each recess in 20 the support mandrel or the cutting mandrel or both, and the cutting means will partially cut the sheet but will not cut the backing sheet. The thickness of the sheet which is left uncut will be affected by the depth of the or each recess. The backing sheet may be coated with, for example, adhesive or silicon or adhesive and silicon. The thickness of the sheet 25 which is left uncut will still be affected the depth of the or each recess.
Compression of the sheet and/or backing sheet may also affect the thickness of the sheet which is left uncut.
The sheet may be provided with a backing sheet. The support mandrel 30 and the cutting mandrel may co-operate, in use, to provide a distance
between the support mandrel and the cutting means of the cutting mandrel which is less than the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the mandrels it will be compressed by the cutting means, to force a portion of the backing sheet, 5 or a portion of the sheet and the backing sheet, into the or each recess in the support mandrel or the cutting mandrel or both. The cutting means may partially cut the backing sheet and/or may partially or wholly cut the sheet, depending on the distance provided between the support mandrel and the cutting means of the cutting mandrel, the depth of the or each 10 recess and the thickness of the backing sheet. For example, the apparatus may operate such that the cutting means may meet the support mandrel, i.e. the distance between the support mandrel and the cutting means of the cutting mandrel is approximately zero. The or each recess may contain a part of the thickness of the portion of the backing sheet, and the cutting 15 means will partially cut the backing sheet and will wholly cut the sheet.
The or each recess may contain the whole of the thickness of the portion of the backing sheet, and the cutting means will not cut the backing sheet and will wholly cut the sheet. The or each recess may contain the whole of the thickness of the portion of the backing sheet and a portion of the 20 sheet, and the cutting means will not cut the backing sheet and will partially cut the sheet. Which of the above that occurs, will depend on the depth of the or each recess and the thickness of the backing sheet.
The backing sheet may be coated with, for example, adhesive or silicon or adhesive and silicon. This will affect the thickness of the backing sheet 25 and/or sheet which is left uncut. Compression of the sheet and/or backing sheet may also affect the thickness of the backing sheet and/or sheet which is left uncut.
The support mandrel may be a rotary mandrel. The cutting mandrel may 30 be a rotary mandrel. The support mandrel and the cutting mandrel may
rotate at a similar speed or at different speeds, in the same direction or in opposite directions. Alternatively, the support mandrel may remain stationary whilst the cutting mandrel rotates, or the cutting mandrel may remain stationary whilst the support mandrel rotates. The support 5 mandrel or the cutting mandrel or the support mandrel and the cutting mandrel may be provided with one or more shoulder portions. The or each shoulder portion may enable the mandrels to co-operate in use. The support mandrel and the cutting mandrel may be connected together. A gear system may be provided at one or both ends of the support mandrel 10 or the cutting mandrel or the support mandrel and the cutting mandrel.
The apparatus may comprise more than one support mandrel. The apparatus may comprise more than one cutting mandrel. The apparatus may comprise more than one set of co-operating support and cutting 15 mandrels.
The support means may comprise a support mandrel. The cutting means may then comprise one or more circular blades. When more than one blade is provided, these may be attached together or may be separate from 20 each other. The blade or blades may be rotary. The support mandrel or the cutting means or the support mandrel and the cutting means may be provided with one or more recesses. The support mandrel and the cutting means may co-operate, in use, to provide a distance between them which is less than the thickness of a sheet to be cut. The support mandrel and 25 the cutting means may co-operate to leave little or no distance between them. When the sheet is placed between the support mandrel and the cutting means it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in the support mandrel or the cutting means or both. The cutting means cuts all but the material in the
recess or recesses, thus allowing partially joined pieces to be formed from the sheet.
The sheet may be provided with a backing sheet. The support mandrel 5 and the cutting means may co-operate, in use, to provide a distance between them which is equal to the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the support mandrel and the cutting means it will be compressed by the cutting means, to force a portion of the backing sheet, or a portion of the sheet and the 10 backing sheet, into the or each recess in the support mandrel or the cutting means or both, and the cutting means will partially cut the sheet but will not cut the backing sheet. The thickness of the sheet which is left uncut will be affected by the depth of the or each recess. The backing sheet may be coated with, for example, adhesive or silicon or adhesive 15 and silicon. The thickness of the sheet which is left uncut will still be affected by the depth of the or each recess. Compression of the sheet and/or backing sheet may also affect the thickness of the sheet which is left uncut.
20 The sheet may be provided with a backing sheet. The support mandrel and the cutting means may co-operate, in use, to provide a distance between them which is less than the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the support mandrel and the cutting means it will be compressed by the cutting means, 25 to force a portion of the backing sheet, or a portion of the sheet and the backing sheet, into the or each recess in the support mandrel or the cutting means or both. The cutting means may partially cut the backing sheet and/or may partially or wholly cut the sheet, depending on the distance provided between the support mandrel and the cutting means, the 30 depth of the or each recess and the thickness of the backing sheet. For
example, the apparatus may operate such that the cutting means may meet the support mandrel, i.e. the distance between the support mandrel and the cutting means is approximately zero. The or each recess may contain a part of the thickness of the portion of the backing sheet, and the cutting 5 means will partially cut the backing sheet and will wholly cut the sheet.
The or each recess may contain the whole of the thickness of the portion of the backing sheet, and the cutting means will not cut the backing sheet and will wholly cut the sheet. The or each recess may contain the whole of the thickness of the portion of the backing sheet and a portion of the 10 sheet, and the cutting means will not cut the backing sheet and will partially cut the sheet. Which of the above that occurs, will depend on the depth of the or each recess and the thickness of the backing sheet.
The backing sheet may be coated with, for example, adhesive or silicon or adhesive and silicon. This will affect the thickness of the backing sheet 15 and/or sheet which is left uncut. Compression of the sheet and/or backing sheet may also affect the thickness of the backing sheet and/or sheet which is left uncut.
The support mandrel and the blades of the cutting means may co-operate 20 in use by movement of the blades whilst the support mandrel is held stationary or movement of the support mandrel whilst the blades are held stationary, or movement of both the support mandrel and the blades.
The support means may comprise a flat bed. The cutting means may then 25 be provided on a flat bed, or on one or more plate-like elements or on a cutting mandrel. The support flat bed or the cutting means or the support flat bed and the cutting means may be provided with one or more recesses. The support flat bed and the cutting means may co-operate, in use, to provide a distance between them which is less than the thickness 30 of a sheet to be cut. The support flat bed and/or the cutting means may
move up and/or down to co-operate, in use, to provide a distance between them which is less than the thickness of a sheet to be cut. When the sheet is placed between the support flat bed and the cutting means it will be compressed by the cutting means, to force a portion of the sheet into the 5 or each recess in the support flat bed or the cutting means or both, thus allowing partially joined pieces to be formed from the sheet.
The sheet may be provided with a backing sheet. The support flat bed and the cutting means may co-operate, in use, to provide a distance lO between them which is equal to the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the support flat bed and the cutting means it will be compressed by the cutting means, to force a portion of the backing sheet, or a portion of the sheet and the backing sheet, into the or each recess in the support flat bed or the cutting 15 means or both, and the cutting means will partially cut the sheet but will not cut the backing sheet. The thickness of the sheet which is left uncut will be affected by the depth of the or each recess. The backing sheet may be coated with, for example, adhesive or silicon or adhesive and silicon. The thickness of the sheet which is left uncut will still be 20 affected by the depth of the or each recess. Compression of the sheet and/or backing sheet may also affect the thickness of the sheet which is left uncut.
The sheet may be provided with a backing sheet. The support flat bed 25 and the cutting means may co-operate, in use, to provide a distance between them which is less than the thickness of the backing sheet. When the combined sheet and backing sheet is placed between the support flat bed and the cutting means it will be compressed by the cutting means, to force a portion of the backing sheet, or a portion of the sheet and the 30 backing sheet, into the or each recess in the support flat bed or the cutting
means or both. The cutting means may partially cut the backing sheet and/or may partially or wholly cut the sheet, depending on the distance provided between the support flat bed and the cutting means, the depth of the or each recess and the thickness of the backing sheet. For example, 5 the apparatus may operate such that the cutting means may meet the support flat bed, i.e. the distance between the support flat bed and the cutting means is approximately zero. The or each recess may contain a part of the thickness of the portion of the backing sheet, and the cutting means will partially cut the backing sheet and will wholly cut the sheet.
10 The or each recess may contain the whole of the thickness of the portion of the backing sheet, and the cutting means will not cut the backing sheet and will wholly cut the sheet. The or each recess may contain the whole of the thickness of the portion of the backing sheet and a portion of the sheet, and the cutting means will not cut the backing sheet and will 15 partially cut the sheet. Which of the above that occurs, will depend on the depth of the or each recess and the thickness of the backing sheet.
The backing sheet may be coated with, for example, adhesive or silicon or adhesive and silicon. This will affect the thickness of the backing sheet and/or sheet which is left uncut. Compression of the sheet and/or backing 20 sheet may also affect the thickness of the backing sheet and/or sheet which is left uncut.
The support flat bed and the cutting means may co-operate in use by movement of the cutting means whilst the support flat bed is held 25 stationary or movement of the support flat bed whilst the cutting means is held stationary, or movement of both the support flat bed and the cutting means. For example, the cutting means may comprise a blade which may be moved in a substantially vertical direction into and out of co- operation with the support flat bed.
The sheet may comprise a foam material, for example a PVC foam material. The foam material is preferably such that the force required to be applied to a piece to break it from the sheet is substantially or less than ION, when the force is applied to the piece at a rate of approximately 5 500mm/min. The force required to break a piece from the sheet may be more than this figure. The sheet may comprise a paper material. The sheet may comprise a coated paper, for example a paper coated with pressure sensitive adhesive or a paper coated with silicon. The sheet may comprise a filmic material, for example a polyester material or a 10 polypropylene material or a polyethylene material which may be a high density polyethylene material and which may be coated with silicon. The sheet may comprise a board material. The sheet may comprise a fabric material. The sheet may comprise two or more materials laminated together. For example, the sheet may comprise a foam material combined 15 with or laminated to a paper material. The sheet may comprise a unitary piece formed from two or more materials.
The sheet may be provided with a backing sheet. The sheet may be provided with adhesive on one or both longitudinal faces thereof. The 20 sheet may be provided with adhesive on one or both longitudinal faces thereof, and a backing sheet may be provided to cover the or each adhesive carrying face.The backing sheet may comprise release paper.
According to a second aspect of the present invention there is provided a 25 sheet which comprises two or more partially joined pieces formed by the apparatus of the first aspect of the invention.
The sheet may comprise a foam material, for example a PVC foam material. The foam material is preferably such that the force required to 30 be applied to a piece to break it from the sheet is substantially or less than
ION, when the force is applied to the piece at a rate of approximately 500mm/min. The force required to break a piece from the sheet may be more than this figure. The sheet may comprise a paper material. The sheet may comprise a coated paper, for example a paper coated with 5 pressure sensitive adhesive or a paper coated with silicon. The sheet may comprise a filmic material, for example a polyester material or a polypropylene material or a polyethylene material which may be a high density polyethylene material and which may be coated with silicon. The sheet may comprise two or more materials laminated together. For 10 example, the sheet may comprise a foam material combined with or laminated to a paper material.
The sheet may be provided with a backing sheet. The sheet may be provided with adhesive on one or both longitudinal faces thereof. The 15 sheet may be provided with adhesive on one or both longitudinal faces thereof, and a backing sheet may be provided to cover the or each adhesive carrying face. The sheet may be provided with adhesive on one or both edge faces thereof. The sheet may be provided with adhesive on one or both edge faces thereof, and a backing sheet may be provided to 20 cover the or each adhesive carrying face. The backing sheet may comprise release paper.
According to a third aspect of the present invention there is provided a method for cutting a sheet into two or more partially joined pieces 25 comprising applying the sheet to an apparatus according to the first aspect of the invention and operating the apparatus to bring the cutting means into contact with the sheet to cut the sheet into two or more partially joined pieces.
The method may comprise cutting a sheet of foam material of, for example, lm width and 50m length, in a direction substantially parallel to the length thereof to form partially joined strips of, for example, 250mm width and 50m length. The method may further comprise cutting a sheet 5 of paper material of, for example, lm width and 50m length, in a direction substantially parallel to the length thereof to form partially joined strips of, for example, 250mm width and 50m length. The foam strips and the paper strips may be wound onto separate rolls so that the strips on each roll lie substantially in line with themselves and/or 10 adjoining strips. A foam strip may be unwound from its roll, breaking away from its neighbouring strip or strips during unwinding, and a paper strip may be unwound from its roll, breaking away from its neighbouring strip or strips during unwinding. The remaining strips preferably remain intact and in place on their roll during this unwinding. The foam strip 15 and the paper strip may be joined, for example by adhesive which may be present on the foam or the paper or on both the foam and the paper. The joined strip may be cut in a direction substantially parallel to the length thereof to form partially joined strips of, for example, 18mm width and 50m length. These strips may be cut in a direction substantially 20 perpendicular to the length thereof to form partially j Dined pads, for example, substantially 18mm square pads. This may occur simultaneously with, or prior to, or subsequently to, cutting of the strip into two or more partially j oined strips. Alternatively, the j Dined strip may be cut in a direction substantially perpendicular to the length thereof to form partially 25 joined pads.
According to a fourth aspect of the present invention there is provided a strip which comprises two or more partially joined pads formed by the apparatus of the first aspect of the invention.
According to fifth, sixth, seventh and eighth aspects of the present invention there is provided a roll or rolls and/or a spool or spools of the strip according to the fourth aspect of the invention.
5 According to a ninth aspect of the present invention there is provided a pad which has been separated from a strip according to the fourth aspect of the invention.
The pad may be used as a glass spacer pad to separate two sheets of glass 10 from one another. The pad may be used as a marker, for example for sheets of glass to mark parts of the sheet which may be a hazard in the workplace. A rectangularly shaped pad is particularly useful in such applications, but other shapes may be used. The pads may be used as packing elements.
According to another aspect of the present invention there is provided a glass spacer pad applicator machine comprising a cutting apparatus according to the first aspect of the invention.
20 According to another aspect of the present invention there is provided a glass spacer pad applicator machine which applies precut pads according to the ninth aspect of the invention, where a backing sheet or release paper has been removed from two or more pads prior to the application of the pad to the glass.
An embodiment of the first and fourth aspects of the invention will now be described by way of example only with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a cutting apparatus according to the first aspect of the present invention; Figure 2 is an end view of the apparatus of Figure 1, Figure 3 is an enlarged schematic view of a strip being cut by the apparatus of Figures 1 and 2; Figure 4 is a top plan view of a part of a strip according to the 10 fourth aspect of the invention, and; Figure 5 is a cross sectional view along line V-V of the strip of Figure 4.
15 Figures 1 and 2 show a cutting apparatus 1, which comprises support means in the form of a support mandrel 2 and cutting means provided on a cutting mandrel 3. The mandrels are capable of rotation. The support mandrel has three grooves 4 cut into it, which extend around the circumference of the mandrel. The grooves are equally spaced from one 20 another, and each have a depth of 70pm and a width of 0.75 mm. The grooves are substantially rectangular in cross section as shown in Figure 3. The cutting means comprises four blades 7 which are attached to the cutting mandrel 3 and extend axially along the mandrel. The mandrels are aligned relative to each other and positioned such that the distance 25 between the face of the support mandrel 2 and the tip of the blades 7 is less than the thickness of a strip to be cut.
The apparatus is particularly designed to cut a strip into two or more partially joined pads. In operation, a strip 8 is fed through the apparatus 30 in a direction substantially perpendicular to the axes of the mandrels. The
strip is fed through the apparatus by pulling means separate from the mandrels. The mandrels are rotated in opposite directions and the strip is fed between the mandrels such that a first longitudinal face 10 thereof is located over the grooves 4 (Figure 3). Due to the distance between the 5 mandrels, the strip is compressed by the mandrels and the blades 7 and a portion 11 of the strip is pushed into each of the grooves 4. The blades 7 come into contact with a second face 12 of the strip, which cuts the strip into partially joined pads. The strip is cut in a transverse direction to the direction of travel of the strip. At each cut, the portions of the strip 10 which are not contained in the grooves 4 are cut leaving the portions 11 of the strip uncut. Thus partially joined pads are formed in the strip. These are joined by portions or bridges 11 (Figure 4). The height of the bridges is less than the thickness of the strip (Figure 5). When such a strip is used in a Lenhardt or other glass applicator machine or manually, a pad 15 may be pulled away from and separated from the strip without undue difficulty and stretching of the strip.
Claims (69)
1. A cutting apparatus for cutting at least one sheet into two or more 5 partially joined pieces comprising support means and cutting means, the support means or the cutting means or the support means and the cutting means being provided with at least one recess, wherein, in use, the sheet is positioned between the support means and the cutting means such that a force is applied to the sheet causing a portion thereof to be pushed into 10 the or each recess and the sheet to be partially cut at the portion contained in the or each recess and to be wholly cut at a portion not contained in the or each recess.
2. An apparatus according to claim 1 wherein the sheet is cut into two 15 or more partially joined strips.
3. An apparatus according to claim 2 wherein the strips are cut into two or more partially joined strips.
20
4. An apparatus according to claim 2 or claim 3 wherein the strips are cut into two or more partially joined pads.
5. An apparatus according to claim 1 wherein the sheet comprises a strip, which is cut into two or more partially joined pads.
6. An apparatus according to any preceding claim wherein the support means or the cutting means is provided with three recesses.
7. An apparatus according to any preceding claim wherein the depth 30 of the or each recess lies in the range 50 to 100 m.
8. An apparatus according to any preceding claim wherein the width of the or each recess lies in the range 0.5 to 1 mm.
9. An apparatus according to any preceding claim wherein the or each 5 recess has a substantially rectangular cross section.
10. An apparatus according to any preceding claim wherein the support means or the cutting means or the support means and the cutting means is provided with one or more grooves which form one or more recesses.
11. An apparatus according to any preceding claim wherein the cutting means cuts the sheet in a direction substantially transverse to the length of the sheet.
15
12. An apparatus according to any preceding claim wherein the cutting means cuts the sheet in a direction substantially parallel to the length of the sheet.
13. An apparatus according to any preceding claim wherein the sheet is 20 cut in a substantially transverse direction to the direction of feed of the sheet through the apparatus.
14. An apparatus according to any preceding claim wherein the sheet is cut in a substantially parallel direction to the direction of feed of the sheet 25 through the apparatus.
15. An apparatus according to any preceding claim wherein the cutting means comprises one or more blades.
16. An apparatus according to claim 16 wherein the blades are provided with one or more recesses.
17. An apparatus according to any preceding claim wherein the support 5 means comprises a support mandrel.
18. An apparatus according to claim 17 wherein the support mandrel is provided with one or more recesses which extend around a part of, or the whole of, or substantially the whole of the circumference of the support 10 mandrel.
19. An apparatus according to claim 17 wherein the support mandrel is provided with one or more recesses which extend axially along a part of, or the whole of, or substantially the whole of the support mandrel.
20. An apparatus according to any preceding claim wherein the cutting means is provided on a cutting mandrel.
21. An apparatus according to claim 20 wherein the cutting mandrel is 20 provided with one or more recesses which extend around a part of, or the whole of, or substantially the whole of the circumference of the cutting mandrel.
22. An apparatus according to claim 20 wherein the cutting mandrel is 25 provided with one or more recesses which extend axially along a part of, or the whole of, or substantially the whole of the cutting mandrel.
23. An apparatus according to any of claims 20 to 21 wherein the cutting mandrel is provided with cutting means which extend axially along
a part of, or the whole of, or substantially the whole of the cutting mandrel.
24. An apparatus according to any preceding claim wherein the support 5 means comprises a support mandrel provided with one or more circumferential recesses and axial cutting means is provided on a cutting mandrel.
25. An apparatus according to claim 25 wherein the sheet is fed 10 through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction substantially transverse to the length thereof.
26. An apparatus according to any of claims 1 to 20 wherein the 15 support means comprises a support mandrel provided with one or more axial recesses, and circumferential cutting means is provided on a cutting mandrel.
27. An apparatus according to claim 26 wherein the sheet is fed 20 through the apparatus in a direction substantially parallel to the axes of the mandrels, to cut the sheet in a direction substantially transverse to the length thereof.
28. An apparatus according to claim 26 wherein the sheet is fed 25 through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction substantially parallel to the length thereof.
29. An apparatus according to any of claims 17 to 28 wherein the 30 support mandrel and the cutting mandrel co-operate, in use, to provide a
distance between the support mandrel and the cutting means of the cutting mandrel which is less than the thickness of a sheet to be cut, such that when the sheet is placed between the mandrels it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in 5 the support mandrel or the cutting mandrel or both, thus allowing partially joined pieces to be formed from the sheet.
30. An apparatus according to any of claims 17 to 29 wherein the support mandrel is a rotary mandrel and the cutting mandrel is a rotary 10 mandrel.
31. An apparatus according to claim 30 wherein the support mandrel and the cutting mandrel rotate at a similar speed in opposite directions.
15
32. An apparatus according to any of claims 1 to 17 wherein the support means comprises a flat bed, and the cutting means is provided on a flat bed, or on one or more plate-like elements or on a cutting mandrel.
33. An apparatus according to claim 32 wherein the support flat bed or 20 the cutting means or the support flat bed and the cutting means is provided with one or more recesses.
34. An apparatus according to claim 31 or claim 32 wherein the support flat bed and the cutting means co-operate, in use, to provide a 25 distance between them which is less than the thickness of a sheet to be cut, such that when the sheet is placed between the support flat bed and the cutting means it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in the support flat bed or the cutting flat bed or both, thus allowing partially joined pieces to be formed 30 from the sheet.
35. A method for cutting a sheet into two or more partially joined pieces comprising applying the sheet to an apparatus according to any of claims 1 to 34 and operating the apparatus to bring the cutting means into contact with the sheet to cut the sheet into two or more pieces.
36. A method according to claim 35 wherein a sheet of foam material is cut in a direction substantially parallel to the length thereof to form partially joined strips, a sheet of paper material is cut in a direction substantially parallel to the length thereof to form partially joined strips, a 10 foam strip and a paper strip are joined and the joined strip cut in a direction substantially parallel to the length thereof to form partially j Dined strips, which strips are cut in a direction substantially perpendicular to the length thereof to form partially joined pads.
15
37. A sheet which comprises two or more partially joined pieces formed by the apparatus according to any of claims 1 to 34.
38. A sheet according to claim 37 which comprises a foam material such that the force required to be applied to a piece to break it from the 20 sheet is substantially ION, when the force is applied to the piece at a rate of approximately 500mm/min.
39. A strip which comprises two or more partially joined strips formed by the apparatus according to any of claims 1 to 34.
40. A strip which comprises two or more partially joined pads formed by the apparatus according to any of claims 1 to 34.
41. A roll of the strip according to claim 40.
42. A spool of the strip according to claim 40.
43. A pad which has been separated from a strip according to claim 40.
5
44. A pad according to claim 43 which is used as a glass spacer pad to separate two sheets of glass from one another.
45. A pad according to claim 43 which is used as a marker.
10
46. A glass spacer pad applicator machine comprising a cutting apparatus according to any of claims 1 to 34.
47. A glass spacer pad applicator machine which applies precut pads according to any of claims 43 to 45, where a backing sheet or release 15 paper has been removed from the two or more pads prior to the application thereof to the glass.
48. A cutting apparatus substantially as described herein with reference to Figures 1 to 3 of the accompanying drawings.
49. A strip of pads substantially as described herein with reference to Figures 4 and 5 of the accompanying drawings.
4 ': Amendments to the claims have been flied as follows CLAIMS
1. A cutting apparatus for cutting at least one sheet into two or more 5 partially joined pieces comprising support means and cutting means, the support means being provided with at least one recess, wherein, in use, the sheet is positioned between the support means and the cutting means such that a force is applied to the sheet causing a portion thereof to be pushed into the or each recess and the sheet to be partially cut at the 10 portion contained in the or each recess and to be wholly cut at a portion not contained in the or each recess.
2. An apparatus according to claim 1 wherein the sheet is cut into two or more partially joined strips.
3. An apparatus according to claim 2 wherein the strips are cut into two or more partially joined strips.
4. An apparatus according to claim 2 or claim 3 wherein the strips are 20 cut into two or more partially joined pads.
5. An apparatus according to claim I wherein the sheet comprises a strip, which is cut into two or more partially joined pads.
25 6. An apparatus according to any preceding claim wherein the support means is provided with three recesses.
7. An apparatus according to any preceding claim wherein the depth of the or each recess lies in the range 50 to 100 m.
: sac) 8. An apparatus according to any preceding claim wherein the width of the or each recess lies in the range 0.5 to 1 mm.
9. An apparatus according to any preceding claim wherein the or each 5 recess has a substantially rectangular cross section.
iO. An apparatus according to any preceding claim wherein the support means is provided with one or more grooves which form one or more recesses. 11. An apparatus according to any preceding claim wherein the cutting means cuts the sheet in a direction substantially transverse to the length of the sheet.
15 12. An apparatus according to any preceding claim wherein the cutting means cuts the sheet in a direction substantially parallel to the length of the sheet.
13. An apparatus according to any preceding claim wherein the sheet is 20 cut in a substantially transverse direction to the direction of feed of the sheet through the apparatus.
14. An apparatus according to any preceding claim wherein the sheet is cut in a substantially parallel direction to the direction of feed of the sheet 25 through the apparatus.
15. An apparatus according to any preceding claim wherein the cutting means comprises one or more blades.
3= 16. An apparatus according to any preceding claim wherein the support means comprises a support mandrel.
17. An apparatus according to claim 16 wherein the support mandrel is 5 provided with one or more recesses which extend around a part of, or the whole of, or substantially the whole of the circumference of the support mandrel. 18. An apparatus according to claim 16 wherein the support mandrel is 10 provided with one or more recesses which extend axially along a part of, or the whole of, or substantially the whole of the support mandrel.
19. An apparatus according to any preceding claim wherein the cutting means is provided on a cutting mandrel.
20. An apparatus according to claim 19 wherein the cutting mandrel is provided with cutting means which extend axially along a part of, or the whole of, or substantially the whole of the cutting mandrel.
20 21. An apparatus according to any preceding claim wherein the support means comprises a support mandrel provided with one or more circumferential recesses and axial cutting means is provided on a cutting mandrel. 25 22. An apparatus according to claim 21 wherein the sheet is fed through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction substantially transverse to the length thereof.
( : 3 i 23. An apparatus according to any of claims 1 to 19 wherein the support means comprises a support mandrel provided with one or more axial recesses, and circumferential cutting means is provided on a cutting mandrel. 24. An apparatus according to claim 23 wherein the sheet is fed through the apparatus in a direction substantially parallel to the axes of the mandrels, to cut the sheet in a direction substantially transverse to the length thereof.
25. An apparatus according to claim 23 wherein the sheet is fed through the apparatus in a direction substantially perpendicular to the axes of the mandrels, to cut the sheet in a direction substantially parallel to the length thereof.
26. An apparatus according to any of claims 16 to 25 wherein the support mandrel and the cutting mandrel co-operate, in use, to provide a distance between the support mandrel and the cutting means of the cutting mandrel which is less than the thickness of a sheet to be cut, such that 20 when the sheet is placed between the mandrels it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in the support mandrel, thus allowing partially joined pieces to be formed from the sheet.
25 27. An apparatus according to any of claims 16 to 26 wherein the support mandrel is a rotary mandrel and the cutting mandrel is a rotary mandrel. 28. An apparatus according to claim 27 wherein the support mandrel 30 and the cutting mandrel rotate at a similar speed in opposite directions.
: r : ( 29. An apparatus according to any of claims 1 to 16 wherein the support means comprises a flat bed, and the cutting means is provided on a flat bed, or on one or more plate-like elements or on a cutting mandrel.
30. An apparatus according to claim 29 wherein the support flat bed is provided with one or more recesses.
31. An apparatus according to claim 28 or claim 29 wherein the 10 support flat bed and the cutting means co-operate, in use, to provide a distance between them which is less than the thickness of a sheet to be cut, such that when the sheet is placed between the support flat bed and the cutting means it will be compressed by the cutting means, to force a portion of the sheet into the or each recess in the support flat bed, thus 15 allowing partially joined pieces to be formed from the sheet.
32. A method of cutting a sheet into two or more partially joined pieces comprising positioning the sheet between a support means and a cutting means, applying force to the sheet to push a portion of the sheet into one 20 or more recesses in the support means and operating the cutting means to bring the cutting means into contact with the sheet so as to cut the sheet only partially at the sheet portion or portions contained in the or each recess. 25 33 A method according to claim 32 which comprises positioning between the support means and the cutting means one or more sheets together with at least one backing sheet adjacent to a longitudinal face of at least one sheet.
34 A method according to claim 33 which comprises covering or partly covering and/or adhering or partly adhering one or more backing sheets to at least one sheet using adhesive.
5 35. A method according to claim 33 or 34 which is arranged to leave the backing sheet uncut or partially uncut.
36. A method according to any of claims 33 to 35 which arranges the cutting means to be a height above the support means said height being 10 roughly any of the following: more than the thickness of a backing sheet; equal to the thickness of a backing sheet; less than the thickness of a backing sheet; and zero height.
37. A method according to any of claims 32 to 36, which comprises 15 cutting the sheet into two or more partially joined strips.
38. A method according to claim 37 which comprises cutting a strip into two or more partially joined pads.
20 39. A method according to any of claims 32 to 38 which comprises cutting the sheet in a direction substantially transverse to the length of the sheet. 40. A method according to any of claims 32 to 38 which comprises 25 cutting the sheet in a direction substantially parallel to the length of the sheet. 41. A method according to any of claims 32 to 40 which comprises feeding the sheet between the cutting means and the support means and
cutting the sheet in a direction substantially transverse to the direction of feed. 42. A method according to any of claims 32 to 40 which comprises 5 feeding the sheet between the cutting means and the support means and cutting the sheet in a direction substantially parallel to the direction of teed. 43. A method according to any of claims 32 to 42 which comprises 10 using cutting means configured as a cutting mandrel.
44. A method according to claim 43 which comprises cutting a sheet using Cutting means extending axially along a part or all of the Cutting mandrel. 45. A method according to claim 43 which comprises cutting a sheet using cutting means extending circumferentially around all or a part of the cutting mandrel.
20 46. A method according to any of claims 32 to 43 which comprises using a support means configured as a support mandrel.
47. A method according to claim 46 which comprises using a support mandrel with one or more recesses which extend around part, or the 25 whole of, the circumference of the support mandrel.
48. A method according to claim 47 as it depends directly or indirectly from any of claims 43 to 45 which comprises feeding a sheet in a direction substantially perpendicular to the axes of the support mandrel
1. ' '
(: ( : C: r.
and the cutting mandrel, and cutting the sheet in a direction substantially transverse to the sheet length.
49. A method according to claim 47 as it depends directly or indirectly 5 from any of claims 43 to 45 which comprises feeding a sheet in a direction substantially perpendicular to the axes of the support mandrel and the cutting mandrel, and cutting the sheet in a direction substantially parallel to the length thereof.
1050. A method according to any of claims 47 to 49 as they depend directly or indirectly from claims 43 to 45 which comprises positioning the support mandrel and the cutting mandrel to provide a distance therebetween which is less than the thickness of the sheet to be cut, feeding a sheet between the cutting and support mandrels to force a 15 portion or portions of the sheet into one or more recesses in the support mandrel, and cutting the sheet portion not in a recess thereby producing partially joined pieces of sheet.
51. A method according to any of claims 43 to 50 which comprises 20 rotating a mandrel.
52. A method according to any of claims 32 to 42 which comprises using support means and/or cutting means configured as a flat bed.
25
53. A method according to claim 52 which comprises using a support means configured as a flat bed with one or more recesses.
54. A method according to claim 52 or claim 53 which comprises positioning the support flat bed and the cutting flat bed at a distance 30 which is less than the thickness of the sheet to be cut, feeding a sheet
(;: between the support and cutting flat bed means, compressing the sheet to force one or more portions of the sheet into one or more recesses in the support means, operating the cutting means to bring the cutting means into contact with the sheet, cutting the sheet partially at a sheet portion or 5 portions contained in the or each recess.
55. A method according to any of claims 32 to 54 which comprises cutting a sheet of foam material.
10
56. A method according to claim 55 which comprises cutting a sheet of foam material in a direction substantially parallel to the length thereof forming partially joined strips, and cutting a sheet of paper material in a direction substantially parallel to the length thereof forming partially joined strips, joining a foam strip and a paper strip are joined and then 15 cutting the joined strip in a direction substantially parallel to the length thereof forming partially joined strips, cutting the strips in a direction substantially perpendicular to the length thereof forming partially joined pads. 20
57. A sheet which comprises two or more partially joined pieces formed by the apparatus according to any of claims 1 to 31 or by using the method of claim 32 to 56.
58. A sheet according to claim 57 which comprises a foam material 25 such that the force required to be applied to a piece to break it from the sheet is substantially ION, when the force is applied to the piece at a rate of approximately 500mm/min.
r j
59. A strip which comprises two or more partially joined strips formed by the apparatus according to any of claims 1 to 31 or by using the method of claims 32 to 56.
5
60. A strip which comprises two or more partially joined pads formed by the apparatus according to any of claims 1 to 31 or by using the method of claims 32 to 56.
61. A roll of the strip according to claim 60.
62. A spool of the strip according to claim 60.
63. A pad which has been separated from a strip according to claim 60.
15
64. A pad according to chains 63 which is used as a glass spacer pad to separate two sheets of glass from one another.
65. A pad according to claim 63 which is used as a marker.
20
66. A glass spacer pad applicator machine comprising a cutting apparatus according to any of claims 1 to 31.
67. A glass spacer pad applicator machine which applies precut pads according to any of claims 63 to 66, where a backing sheet or release 25 paper has been removed from the two or more pads prior to the application thereof to the glass.
68. A cutting apparatus substantially as described herein with reference to Figures 1 to 3 of the accompanying drawings.
: :
69. A strip of pads substantially as described herein with reference to Figures 4 and 5 of the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0112532A GB2375729B (en) | 2001-05-23 | 2001-05-23 | Improvements in and relating to cutting materials |
| EP02253639A EP1260326A3 (en) | 2001-05-23 | 2002-05-23 | Method and apparatus for partially cutting a sheet, and sheet or strip obtained thereby |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0112532A GB2375729B (en) | 2001-05-23 | 2001-05-23 | Improvements in and relating to cutting materials |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0112532D0 GB0112532D0 (en) | 2001-07-11 |
| GB2375729A true GB2375729A (en) | 2002-11-27 |
| GB2375729B GB2375729B (en) | 2003-06-04 |
Family
ID=9915136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0112532A Expired - Fee Related GB2375729B (en) | 2001-05-23 | 2001-05-23 | Improvements in and relating to cutting materials |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1260326A3 (en) |
| GB (1) | GB2375729B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138279A1 (en) * | 2006-05-25 | 2007-12-06 | Adrian Merritt | Improvements in and relating to materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2851951B1 (en) * | 2003-03-03 | 2006-07-28 | Creations Ac Sa | METHOD OF PRE-CUTTING POLYESTER BOARD LABELS FOR COLOR AND LASER INKJET PRINTER |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3255948A (en) * | 1964-11-16 | 1966-06-14 | Kvp Sutherland Paper Co | Severance line construction for cartons and the like |
| EP0841649A2 (en) * | 1996-11-12 | 1998-05-13 | Xynatech, Inc. | Perforating and slitting die sheet, methods of constructing same and paper product produced therefrom |
| GB2322643A (en) * | 1997-02-26 | 1998-09-02 | Ranpak Corp | Making of cushioning material for packaging |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3008366A (en) * | 1956-01-06 | 1961-11-14 | Hudson Pulp & Paper Corp | Paper perforating mechanism |
| FR2381611A1 (en) * | 1977-02-23 | 1978-09-22 | Lesieur Cotelle | Heated jaws with one serrated face for welding thermoplastic film - for welds which may be parted in tension when required |
| JPH0739578Y2 (en) * | 1990-03-22 | 1995-09-13 | ブラザー工業株式会社 | Tape cutter |
| AU1189797A (en) * | 1995-12-22 | 1997-07-17 | Wjc Systec A/S | Method and device for perforating and/or cutting and/or scoring a web. |
| US5761982A (en) * | 1996-06-20 | 1998-06-09 | George Schmitt & Co. | Perforating and cutting device and process for producing a sheet of individually severable and releasable stamps |
| DE19755596C1 (en) * | 1997-12-15 | 1999-02-18 | Kuesters Eduard Maschf | Perforation of thermoplastic nonwovens |
| FI103663B1 (en) * | 1998-05-06 | 1999-08-13 | Valmet Corp | Cross-cutting apparatus and method for web-shaped material and sheet cutting unit |
| US6874394B1 (en) * | 1999-06-30 | 2005-04-05 | Mcneil-Ppc, Inc. | Continuous method of providing individual sheets from a continuous web |
-
2001
- 2001-05-23 GB GB0112532A patent/GB2375729B/en not_active Expired - Fee Related
-
2002
- 2002-05-23 EP EP02253639A patent/EP1260326A3/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3255948A (en) * | 1964-11-16 | 1966-06-14 | Kvp Sutherland Paper Co | Severance line construction for cartons and the like |
| EP0841649A2 (en) * | 1996-11-12 | 1998-05-13 | Xynatech, Inc. | Perforating and slitting die sheet, methods of constructing same and paper product produced therefrom |
| GB2322643A (en) * | 1997-02-26 | 1998-09-02 | Ranpak Corp | Making of cushioning material for packaging |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007138279A1 (en) * | 2006-05-25 | 2007-12-06 | Adrian Merritt | Improvements in and relating to materials |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1260326A2 (en) | 2002-11-27 |
| EP1260326A3 (en) | 2003-10-29 |
| GB2375729B (en) | 2003-06-04 |
| GB0112532D0 (en) | 2001-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20200523 |