Sheet arranging device and sheet sorter

A sheet sorter comprising;

• a plurality of trays each displaceable in the vertical direction,
• displacing means for selectively displacing one of said plurality of trays to a sheet discharging position,
• an arm having a frictional member disposed at the uppermost end thereof, said frictional member being brought in contact with the upper surface of a sheet with a predetermined intensity of frictional force,
• first displacing means for annularly displacing said frictional member to assume a first operative state or a second operative state, said first operative state being such that said frictional member is brought in contact with the upper surface of the sheet, and said second operative state being such that said frictional member is not brought in contact with the upper surface of the sheet, said first displacing means comprising:
• a main body having a first annular guide groove and a second vertically extending groove formed thereon at predetermined positions thereof,
• a movable member having said arm operatively secured thereto, said movable member including a first pin at one end and a second pin at the other end thereof, said first pin being displaceably received in said first guide groove, and said second pin being displaceably received in said second guide groove, and
• second displacing means for displacing said first pin along said first guide groove, said second displacing means comprising:
• a U-shaped cam rotatably supported on said main body so as to allow one end of said first pin to be slidably fitted to said U-shaped cam, and
• driving means for rotationally driving said U-shaped cam in a predetermined timing relationship, and
• guiding means for guiding the movement of said frictional member so as to allow said frictional member to move in a predetermined direction relative to said trays.

A sheet sorter comprising;

• a plurality of trays each displaceable in the vertical direction,
• displacing means for selectively displacing one of said plurality of trays to a sheet discharging position,
• an arm having a frictional member disposed at the uppermost end thereof, said frictional member being brought in contact with the upper surface of a sheet with a predetermined intensity of frictional force,
• first displacing means for annularly displacing said frictional member to assume a first operative state or a second operative state, said first operative state being such that said frictional member is brought in contact with the upper surface of the sheet, and said second operative state being such that said frictional member is not brought in contact with the upper surface of the sheet, said first displacing means comprising:
• a main body having a first annular guide groove and a second vertically extending groove formed thereon at predetermined positions thereof,
• a movable member having said arm operatively secured thereto, said movable member including a first pin at one end and a second pin at the other end thereof, said first pin being displaceably received in said first groove, and said second pin being displaceably received in said second guide groove, wherein said movable member is designed in a substantially U-shaped configuration comprising a first arm portion having said first pin disposed thereon, a bottom portion having said second pin disposed thereon and a second arm portion, and said arm is attached to said second arm portion via a slider adapted to slidably move in a longitudinal direction of said arm, and
• second displacing means for displacing said first pin along said first guide groove, and
• guiding means for guiding the movement of said frictional member so as to allow said frictional member to move in a predetermined direction relative to said trays.

A sheet sorter comprising;

• a plurality of trays each displaceable in the vertical direction,
• displacing means for selectively displacing one of said plurality of trays to a sheet discharging position,
• an arm having a frictional member disposed at the uppermost end thereof, said frictional member being brought in contact with the upper surface of a sheet with a predetermined intensity of frictional force,
• first displacing means for annularly displacing said frictional member to assume a first operative state or a second operative state, said first operative state being such that said frictional member is brought in contact with the upper surface of the sheet, and said second operative state being such that said frictional member is brought in contact with the upper surface of the sheet, said first displacing means comprising:
• a main body having a first annular guide groove and a second vertically extending groove formed thereon at predetermined positions thereof,
• a movable member having said arm operatively secured thereto, said movable member including a first pin at one end and second pin at the other end thereof, said first pin being displaceably received in said first guide groove, and said second pin being displaceably received in said second guide groove, and
• second displacing means for displacing said first pin along said first guide groove, and
• guiding means for guiding the movement of said frictional member so as to allow said frictional member to move in a predetermined direction relative to said trays, said guiding means comprising:
• a portion of said first annular guide groove extending substantially in parallel with said predetermined direction, and
• an inclined guide surface formed on said main body so as to allow the intermediate part of said arm to come in contact with said inclined guide surface.

A sheet sorter comprising;

• a plurality of trays each displaceable in the vertical direction,
• displacing means for selectively displacing one of said plurality of trays to a sheet discharging position,
• an arm having a frictional member disposed at the uppermost end thereof, said frictional member being brought in contact with the upper surface of a sheet with a predetermined intensity of frictional force,
• first displacing means for annularly displacing said frictional member to assume a first operative state or a second operative state, said first operative state being such that said frictional member is brought in contact with the upper surface of the sheet, and said second operative state being such that said frictional member is not brought in contact with the upper surface of the sheet, said first displacing means comprising:
• a main body having an first annular guide groove and a second vertically extending groove formed thereon at predetermined positions thereof,
• a movable member having said arm operatively secured thereto, said movable member including a first pin at one end and a second pin at the other end thereof, said first pin being displaceably received in said first guide groove, and said second pin being displaceably received in said second guide groove, wherein a distance between said second pin and said frictional member is set to be larger than that between said first pin and said second pin, and
• second displacing means for displacing said first pin along said first guide groove, and
• guiding means for guiding the movement of said frictional member so as to allow said frictional member to move in a predetermined direction relative to said trays.