Stamp apparatus

A stamp apparatus comprising:

• an impress hub having a character/symbol string;
• a presser roller for urging a paper-sheet object to the impress hub, for impressing the predetermined character/symbol string to the paper-sheet object being conveyed between the impress hub and the presser roller;
• and
• a presser mechanism, comprising an arm having the presser roller, for suppressing a rebound produced when the presser roller starts to urge the paper-sheet object by rotating the arm so as to urge the presser roller to the paper-sheet object and simultaneously for maintaining a predetermined urging pressure of the presser roller relative to the paper-sheet object having a predetermined thickness,
• wherein the presser mechanism comprises:
• a roller provided in the arm;
• a cam for rotating the arm about a predetermined point on the arm by pushing the roller while rotating and also for suppressing the rebound produced when the presser roller starts to urge the paper-sheet object;
• and
• a solenoid for rotating the cam so as to maintain the predetermined urging pressure of the presser roller.

A stamp apparatus comprising:

• an impress hub having a predetermined character/symbol string;
• a presser roller for urging a paper-sheet object to the impress hub, for impressing the predetermined character/symbol string to the paper-sheet object being conveyed between the impress hub and the presser roller;
• and
• a presser mechanism, comprising an arm having the presser roller, for suppressing a rebound produced when the presser roller starts to urge the paper-sheet object by rotating the arm so as to urge the presser roller to the paper-sheet object and simultaneously for maintaining a predetermined urging pressure of the presser roller relative to the paper-sheet object having a predetermined thickness;
• and
• a separating lever that separates the paper-sheet object from the impress hub upon completion of impressing the paper-sheet object by the impress hub.