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US 11,584,033 B2Granted
Device for transversally cutting convolutely wound logs of web materials
AssigneeThe Procter & Gamble Company
InventorsJoseph Henry Kettula, Jonathan Lee Price, Gustav Andre Mellin
Life of this patent
Estimating the term…
Abstract
A log saw for cutting convolutely wound logs of web material is disclosed. The log saw includes a cutting blade operating in a cutting plane, a log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane, and controls connected to the clamping device.
Claims24
A log saw for cutting convolutely wound logs of web material, the log saw comprising:
- a) a cutting blade operating in a cutting plane;
- b) a log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane;
- and,
- c) a controller operatively connected to said log saw clamp;
- and,
- d) wherein said log saw clamp comprises:
- 1) A support structure, said support structure having a first and second cam disposed therein;
- 2) a pair of opposed first and second paddles, said convolutely wound log of web material being disposable therebetween, each paddle of the pair of opposed paddles being capable of contacting engagement with a surface of said convolutely wound log of web material;
- 3) a first and a second linkage, each of said first and second linkages comprising a first link and a second link, the second link having a cam follower disposed thereon, each cam follower of said first and second linkages being connectively and operatively engageable with said first and second cam, respectively, each of said first and second linkages being operatively and fixably connected to said first and second paddles, respectively, at a distal end of the first and second linkages;
- 4) a bracket that is operatively coupled to each of said first and second linkages at the first link of each of the first and second linkages, such that application of a force to the bracket provides a substantially similar rectilinear motion to each of said first and second linkages;
- wherein, the force applied to both of said first and second linkages causes each of said cam followers attached thereon to translate within said respective first and second cams disposed within said support structure, each of said cam followers causing said respective first and second linkage to cause said respective first and second paddles operably and fixably attached to said distal end thereof to translate relative to said convolutely wound log of web material;
- wherein, when the force is in a first direction, said first and second paddles translate towards each other for contacting engagement with the surface of said convolutely wound log of web material;
- wherein, when the force is in a second direction that is opposite the first direction, said first and second paddles translate away from each other and away from contacting engagement with the surface of said convolutely wound log of web material;
- wherein said log saw clamp further comprises an axis of symmetry, said first cam, said first paddle, and said first linkage being disposed upon a first side of said axis of said symmetry and said second cam, said second paddle, and said second linkage being disposed on a second side of said axis of symmetry, such that a first concave portion of the first paddle and a second concave portion of said second paddle are disposed as to be capable of cooperatively and symmetrically contacting and supporting the convolutely wound log of web material between the first and second concave portions of the first and second paddles;
- and
- wherein the first and second cams are separate from each other and distanced from the axis of symmetry, wherein the first and second paddles are separate from each other and distanced from the axis of symmetry, and wherein said first and second linkages are separate from each other and distanced from the axis of symmetry, such that free space will exist immediately above and below the supported convolutely wound log of web material along the axis of symmetry.
13 more elements
A log saw for cutting convolutely wound logs of web material, the log saw comprising:
- a) a cutting blade operating in a cutting plane;
- b) a log saw clamp for temporarily restraining a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane;
- and,
- c) a controller operatively connected to said log saw clamp;
- and,
- d) wherein said log saw clamp comprises:
- a pair of opposed first and second paddles operatively connected to a respective first and a second linkage at a distal end of the first and second linkages, each of said first and second linkages comprising a first link and a second link, said convolutely wound log of web material being disposable between said pair of opposed first and second paddles, each paddle of the pair of opposed paddles being capable of contacting engagement with a surface of said convolutely wound log of web material, and a bracket that is operatively coupled to each of said first and second linkages at the first link of the first and second linkages, such that application of a force to the bracket provides a substantially similar rectilinear motion to each of said first and second linkages;
- wherein, when the force is in a first direction, said first and second paddles translate towards each other for contacting engagement with the surface of said convolutely wound log of web material;
- wherein, when the force is in a second direction that is opposite the first direction, said first and second paddles translate away from each other and away from contacting engagement with the surface of said convolutely wound log of web material;
- wherein said log saw clamp further comprises a support structure, said support structure having a first and second cam disposed therein, and a cam follower disposed upon the second link of each of said first and second linkages, each said cam follower disposed upon each of said respective first and second linkages being disposed and translatable within a respective first and second cam, such that a first concave portion of the first paddle and a second concave portion of the second paddle are disposed as to be capable of cooperatively and symmetrically contacting and supporting the convolutely wound log of web material between the first and second concave portions of the first and second paddles;
- and
- wherein the first and second cams are separate from each other and distanced from an axis of symmetry, wherein the first and second paddles are separate from each other and distanced from the axis of symmetry, and wherein said first and second linkages are separate from each other and distanced from the axis of symmetry, such that free space will exist immediately above and below the supported convolutely wound log of web material along the axis of symmetry.
9 more elements
A log saw for cutting convolutely wound logs of web material, the log saw comprising:
- a) a cutting blade operating in a cutting plane;
- b) log saw clamp for the retention of a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane;
- and,
- c) controller operatively connected to said log saw clamp;
- and,
- d) wherein said log saw clamp comprises:
- 1) A support structure, said support structure having a first and second cam disposed therein;
- 2) a pair of opposed first and second paddles, said convolutely wound log of web material being disposable therebetween, each paddle of the pair of opposed paddles being capable of contacting engagement with a surface of said convolutely wound log of web material;
- 3) a first and a second linkage, each of said first and second linkages having a cam follower disposed thereon, each cam follower of said first and second linkages being connectively and operatively engageable with said first and second cam, respectively, each of said first and second linkages being operatively and fixably connected to said first and second paddles, respectively, at a distal end of the first and second linkages;
- 4) a bracket that is operatively coupled to each of said first and second linkages at the first link of the first and second linkages, such that application of a force to the bracket provides a substantially similar rectilinear motion to each of said first and second linkages;
- wherein, the force applied to both of said first and second linkages causes each of said cam followers attached thereon to translate within said respective first and second cams disposed within said support structure, each of said cam followers causing said respective first and second linkage to cause said respective first and second paddles operably and fixably attached to said distal end thereof to translate relative to said convolutely wound log of web material;
- wherein, when the force is in a first direction, said first and second paddles translate towards each other for contacting engagement with the surface of said convolutely wound log of web material;
- wherein, when the force is in a second direction that is opposite the first direction, said first and second paddles translate away from each other and away from contacting engagement with the surface of said convolutely wound log of web material;
- wherein the translation of said first and second paddles resulting from the force is confined to rotational translation about an axis located proximately to a centroid of each of said cam followers;
- wherein said log saw clamp further comprises an axis of symmetry, said first cam, said first paddle, and said first linkage being disposed upon a first side of said axis of said symmetry and said second cam, said second paddle, and said second linkage being disposed on a second side of said axis of symmetry, such that a first concave portion of the first paddle and a second concave portion of the second paddle are disposed as to be capable of cooperatively and symmetrically contacting and supporting the convolutely wound log of web material between the first and second concave portions of the first and second paddles;
- and
- wherein the first and second cams are separate from each other and distanced from the axis of symmetry, wherein the first and second paddles are separate from each other and distanced from the axis of symmetry, and wherein said first and second linkages are separate from each other and distanced from the axis of symmetry, such that free space will exist immediately above and below the supported convolutely wound log of web material along the axis of symmetry.
14 more elements
A log saw for cutting convolutely wound logs of web material, the log saw comprising:
- a) a cutting blade operating in a cutting plane;
- b) a log saw clamp for temporarily restraining a convolutely wound log of web material such that the convolutely wound log of web material extends in a log advancing path through to the cutting plane;
- and,
- c) a controller operatively connected to said log saw clamp;
- and,
- d) wherein said log saw clamp comprises:
- a pair of opposed first and second paddles operatively connected to a respective first and a second linkage at a distal end of the first and second linkages, said convolutely wound log of web material being disposable between said pair of opposed first and second paddles, each paddle of the pair of opposed paddles being capable of contacting engagement with a surface of said convolutely wound log of web material, and a bracket that is operatively coupled to each of said first and second linkages at a proximal end of the first and second linkages, such that application of a force to the bracket provides a substantially similar rectilinear motion to each of said first and second linkages;
- wherein, when the force is in a first direction, said first and second paddles translate towards each other for contacting engagement with the surface of said convolutely wound log of web material;
- wherein, when the force is in a second direction that is opposite the first direction, said first and second paddles translate away from each other and away from contacting engagement with the surface of said convolutely wound log of web material;
- wherein the translation of said first and second paddles resulting from the force is confined to rotational translation about an axis located proximately to a centroid of each of said cam followers;
- wherein said log saw clamp further comprises a support structure, said support structure having a first and second cam disposed therein, and a cam follower disposed upon each of said first and second linkages, each said cam follower disposed upon each of said respective first and second linkages being disposed and translatable within a respective first and second cam, such that a first concave portion of the first paddle and a second concave portion of the second paddle are disposed as to be capable of cooperatively and symmetrically contacting and supporting the convolutely wound log of web material between the first and second concave portions of the first and second paddles;
- wherein the first and second cams are separate from each other and distanced from an axis of symmetry, wherein the first and second paddles are separate from each other and distanced from the axis of symmetry, and wherein said first and second linkages are separate from each other and distanced from the axis of symmetry, such that free space will exist immediately above and below the supported convolutely wound log of web material along the axis of symmetry.
9 more elements
Dependencies are inferred from the claim text.