Apparatus for continuously coating a sheet material concurrently with a plurality of stripes

Claim 1

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are parallel to each other, spaced from each other and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, and each of which partitioning plates has a bottom edge thereof having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of another side edge of said partitioning plate, and; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface thereof obliquely, downwardly approaching the blade of said doctor knife, and a lower end thereof located close to the blade of said doctor knife, said guide plate also having a lower surface located inside the bottom edges of said pair of partitioning plates.

Claim 2

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are parallel to each other, spaced from each other and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, and each of which partitioning plates has a bottom edge thereof having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of another side edge of said partitioning plate, and; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface thereof obliquely, downwardly approaching the blade of said doctor knife, and a lower end thereof located close to the blade of said doctor knife, said guide plate also having a lower surface located inside the bottom edges of said pair of partitioning plates.

Claim 11

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are parallel to each other, spaced from each other and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, and each of which partitioning plates has a bottom edge thereof having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of another side edge of said partitioning plate; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface which obliquely, downwardly approaches the blade of said doctor knife, and a lower end which is located close to the blade of said doctor knife and inside the bottom edges of said pair of partitioning plates, and; (C) an additional, downwardly extending guide plate, an upper end of which is connected to the lower end of said guide plate so that a lower end of said additional guide plate is located inside the bottom edges of said pair of partitioning plates, and so that the location of the lower end of said additional guide plate is farther from the front surface of said doctor knife than that of the lower end of said guide plate.

Claim 12

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are parallel to each other, spaced from each other and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, and each of which partitioning plates has a bottom edge thereof having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of another side edge of said partitioning plate; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface which obliquely, downwardly approaches the blade of said doctor knife, and a lower end which is located close to the blade of said doctor knife and inside the bottom edges of said pair of partitioning plates, and; (C) an additional, downwardly extending guide plate, an upper end of which is connected to the lower end of said guide plate so that a lower end of said additional guide plate is located inside the bottom edges of said pair of partitioning plates, and so that the location of the lower end of said additional guide plate is farther from the front surface of said doctor knife than that of the lower end of said guide plate.

Claim 13

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are spaced from each other, and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, wherein each of said partitioning plates includes a bottom edge having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of an opposing side edge of said partitioning plate, and; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface which obliquely, downwardly approaches the blade of said doctor knife, and a lower end which is located close to the blade of said doctor knife and inside the bottom edges of said pair of partitioning plates; so that the only portions of the coating liquid-feeding device which contact said sheet material are the arc-shaped bottom edges of the partitioning plates.

Claim 14

An apparatus for continuously coating a sheet material concurrently with a plurality of coating liquids in the pattern of a plurality of stripes, which apparatus comprises: (1) means for feeding a sheet material and means for delivering said sheet material; (2) a substantially vertical coating doctor knife having a blade formed in the lower end portion thereof and arranged between the sheet material-feeding means and the sheet material-delivering means, and; (3) a coating liquid-feeding device attached to a front surface of said doctor knife, which front surface faces said sheet material-feeding means, and having a plurality of compartments, each of which compartments is defined by: (A) a pair of substantially vertical partitioning plates which are spaced from each other, and connected to the front surface of said doctor knife in such a manner that a side edge surface of each partitioning plate is in close contact with the front surface of the doctor knife, and a lowermost end of the side edge surface is at substantially the same level as that of a lowermost end of the blade of said doctor knife, wherein each of said partitioning plates includes a bottom edge having a profile in the shape of an arc bulged downwardly from an imaginary straight line drawn between the lowermost end of the side edge of said partitioning plate adjacent the doctor knife, and a lowermost end of an opposing side edge of said partitioning plate, and; (B) an inclined guide plate interposed between said pair of partitioning plates and having an inclined upper surface which obliquely, downwardly approaches the blade of said doctor knife, and a lower end which is located close to the blade of said doctor knife and inside the bottom edges of said pair of partitioning plates; so that the only portions of the coating liquid-feeding device which contact said sheet material are the arc-shaped bottom edges of the partitioning plates.