# US 11,897,724 B2 · Medium conveying apparatus

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- Number: US 11,897,724 B2
- Document ID: US11897724B2
- Status: Granted
- Kind: B2
- Application number: 17/464,408
- Filed: 2021-09-01
- Published: 2021-12-23
- Granted: 2024-02-13
- Earliest claimed: 2019-03-20
- Assignees: Pfu Limited
- Applicants: PFU Limited
- Inventors: Shogo Yoshita
- Web page: https://patentgrep.com/patent/US11897724B2

## CPC

- B65H 9/004: {Deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet}
- B65H 1/02: adapted to support articles on edge
- B65H 29/125: {between two sets of rollers}
- B65H 29/58: Article switches or diverters
- B65H 2301/331: Skewing, correcting skew, i.e. changing slightly orientation of material
- B65H 2403/942: Bidirectional powered handling device
- B65H 2404/725: retractable
- B65H 2407/21: Manual feeding
- B65H 2511/24: Irregularities, e.g. in orientation or skewness
- B65H 2701/1829: Bound, bundled or stapled stacks or packages
- B65H 2701/1914: Cards, e.g. telephone, credit and identity cards
- B65H 2801/39: Scanning
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A medium conveying apparatus includes a first conveying path, a second conveying path that is connected to the first conveying path, a third conveying path that is connected to the first conveying path and the second conveying path, and a skew corrector that blocks a first space between the first conveying path and the second conveying path when a medium conveyed along the first conveying path is skewed, and retreats from the first space when the medium is not skewed, wherein the skew corrector retreats from a second space between the second conveying path and the third conveying path when blocking the first space, and blocks the third space between the first conveying path and the third conveying path when retreating from the first space.

## Claims

### Claim 1

A medium conveying apparatus comprising:
a first conveying path;
a second conveying path that is connected to the first conveying path;
a third conveying path that is connected to the first conveying path and the second conveying path;
a stopper configured to block a first space between the first conveying path and the second conveying path and retreat from the first space;
a lever that is rotatably supported by a main body so as to be arranged in one of a confinement region and a release region;
a first hitting portion that is fixed to the stopper; and
a second hitting portion that is fixed to the lever, wherein
the lever blocks the first space when the lever is arranged in the confinement region,
the second hitting portion hits against the first hitting portion when the lever is arranged in the confinement region,
the stopper is fixed while blocking the first space by the second hitting portion hitting against the first hitting portion,
the lever is pushed by a medium conveyed along the first conveying path to move toward the release region,
the lever and the stopper are formed to correct skew of the medium when the medium is in contact with both the stopper and the lever while the lever is arranged in the release region,
the second hitting portion is prevented from hitting against the first hitting portion when the lever is arranged in the release region,
the stopper is released so as to retreat from the first space by preventing the second hitting portion from hitting against the first hitting portion, and
the stopper is further configured to:
retreat from a second space between the second conveying path and the third conveying path when the stopper blocks the first space; and
block a third space between the first conveying path and the third conveying path when the stopper retreats from the first space.

### Claim 2 (depends on 1)

The medium conveying apparatus according to claim 1, further comprising:
a conveyor configured to convey a medium from the second conveying path to the third conveying path or from the third conveying path to the second conveying path when the stopper is retreated from the second space, wherein
the conveyor conveys a medium from the first conveying path to the second conveying path when the stopper is retreated from the first space.

### Claim 3 (depends on 2)

The medium conveying apparatus according to claim 2, wherein
the stopper is supported by the main body such that the stopper is rotatable about a rotation shaft, and
the rotation shaft is arranged between the first conveying path and the third conveying path.

### Claim 4 (depends on 3)

The medium conveying apparatus according to claim 3, further comprising:
an abutment configured to be fixed to the main body so as to be separated from the stopper when the stopper is retreated from the second space and so as to contact with the stopper when the stopper blocks the third space.

### Claim 5 (depends on 3)

The medium conveying apparatus according to claim 3,
wherein
the lever moves from the release region to the confinement region by separating from the medium.

### Claim 6 (depends on 5)

The medium conveying apparatus according to claim 5, wherein the lever blocks the third space when the stopper blocks the third space.

### Claim 7 (depends on 3)

The medium conveying apparatus according to claim 3, further comprising:
an elastic body configured to apply an elastic force to the stopper such that the stopper blocks the first space.