Continuous paper let-out apparatus

• US 5,098,078 A
• Filed: 04/16/1990
• Issued: 03/24/1992
• Est. Priority Date: 04/17/1989
• Status: Expired due to Term

• Current Assignee: Hitachi-Omron Terminal Solutions Corporation (Hitachi, Ltd.)
• Original Assignee: Omron Corporation
• Inventors: Nakanishi, Tomoyuki
• Primary Examiner(s): Valenza, Joseph E.
• Assistant Examiner(s): REISS, STEVEN
• Application Number:
  US07/509,153
• Time in Patent Office: 708 Days
• Field of Search: 271/4, 271/10, 271/109, 271/110, 271/119, 271/121, 271/125, 271/126, 271/262, 271/263, 271/265, 271/270-273
• US Class Current: 271/10.11
• CPC Class Codes: B65H 2220/01 indicating an entity as a function of which control, adjustment or change is performed, i.e. input
• CPC Class Codes: B65H 2220/02 indicating an entity which is controlled, adjusted or changed by a control process, i.e. output
• CPC Class Codes: B65H 2301/541 Counting
• CPC Class Codes: B65H 2404/5311 Surface with different coefficients of friction
• CPC Class Codes: B65H 2511/13 Thickness
• CPC Class Codes: B65H 2511/30 Numbers, e.g. of windings or rotations
• CPC Class Codes: B65H 2513/512 Starting; Stopping
• CPC Class Codes: B65H 2701/1912 Banknotes, bills and cheques or the like
• CPC Class Codes: B65H 29/6609 forming an overlapping stream by separation of articles from a pile B65H5/24
• CPC Class Codes: B65H 3/0653 for separating substantially vertically stacked articles
• CPC Class Codes: B65H 3/0676 with two or more separator rollers in the feeding direction
• CPC Class Codes: B65H 3/5246 Driven retainers, i.e. the motion thereof being provided by a dedicated drive
• CPC Class Codes: B65H 5/24 Feeding articles in overlapping streams, i.e. by separation of articles from a pile

Abstract

The continuous paper let-out apparatus for letting out paper in sequence beginning from a first paper (2a) of a plurality of papers (2) accommodated under stacked condition, comprises let-out rollers (7), auxiliary rollers (6) and friction rollers (8). The let-out rollers (7) are in contact with an end of the first paper (2a) and let out this first paper when rotated. The auxiliary rollers (b 6) are brought into contact with a second paper (2b), after the first paper (2a) has been let out about half; and lets out the second paper (2b), when rotated, in partially overlapped positional relationship with respect to the first paper (2a). The friction rollers (8) are disposed opposingly to the let-out rollers (7); rotated at a circumferential speed lower than that of the let-out rollers (7); and shifts a second paper (2b) from the first paper, so that a partially overlapped portion of these two papers can be reduced, when brought into contact with the second paper.

Claims

1. A continuous paper let-out apparatus for letting out paper in sequence beginning from a first paper of a plurality of papers accommodated under a stacked condition, comprising:

(a) let-out roller means, rotatably disposed in contact with an end of the first paper, for letting out the first paper;

(b) auxiliary roller means, rotating in synchronism with said let-out roller means said let-out roller means and auxiliary roller means being commonly driven by a first drive means and disposed at roughly a middle portion of paper and in contact with a second paper when the first paper is being let out by said let-out roller means, for letting out the second paper in partially overlapped positional relationship with respect to the first paper; and

(c) friction roller means, rotatable by a second drive means in a let-out direction at a circumferential speed lower than that of said let-out roller means and disposed opposingly to said let-out roller means so as to be in contact with the second paper, for shifting the second paper from the first paper to partially reduce the overlap of the two papers.

2. The continuous paper let-out apparatus of claim 1, wherein a plurality of let-out roller means and a plurality of friction roller means are alternately interposed therebetween in an axial direction thereof, and a circumference of each let-out roller means and a circumference of each friction roller means are partially overlapped with each other when seen from a side.

3. The continuous paper let-out apparatus of claim 1, which further comprises thickness detection means for detecting a thickness of the let-out paper.

4. A continuous paper let-out apparatus for letting out paper in sequence beginning from a first paper of a plurality of papers accommodated under a stacked condition, comprising:

(a) let-out rollers, rotatably disposed in contact with an end of the first paper, for letting out the first paper;

(b) auxiliary rollers rotating in synchronism with said let-out rollers by a common drive motor and disposed at roughly a middle portion of paper and in contact with a second paper when the first paper is being let out by said let-out rollers, for letting out the second paper in partially overlapped positional relationship with respect to the first paper;

(c) friction rollers, disposed opposingly to said let-out rollers and alternately interposed between said let-out rollers at appropriate intervals in such a way that a circumference of each let-out roller and a circumference of each friction roller are partially overlapped with each other when seen from a side whereby said partially overlapped circumference forms an overlap width which can be freely adjusted;

(d) friction roller displacement means for supporting and moving said friction rollers in such a way that said overlap width between said let-out rollers and said friction rollers can be adjusted by said friction roller displacement means to any one of a single paper let-out width and a double paper let-out width;

(e) guide roller means, disposed in front of said let-out rollers and rotatable at the same circumferential speed as that of said let-out rollers for guiding the let-out papers away from said let-out apparatus;

(f) thickness detection means having thickness detection rollers means movably supported so as to be urged into pressure contact with or separated from said guide roller means, for generating a single paper detection signal and a double paper detection signal on the basis of a displacement degree of said thickness detection roller means; and

(g) control means responsive to the thickness detection signal from said thickness detection means, for controlling said friction roller displacement means so that the overlap width between said let-out rollers and said friction rollers is set to a double paper let-out width in response to the single paper detection signal and to the single paper let-out width in response to the double paper detection signal.

5. The continuous paper let-out apparatus of claim 4, wherein said friction rollers are rotatable only in a direction opposite to said paper let-out direction.

6. The continuous paper let-out apparatus of claim 4, further comprising means for rotating said friction rollers in a paper let-out direction at a circumferential speed lower than that of said let-out rollers.

7. The continuous let-out paper apparatus of claim 4, wherein said friction rollers are non-driven.