US5055756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traverse apparatus and image recording apparatus
Assignee: Canon Inc
•
Filing: 1989-08-11
•
Granted: 1991-10-08
•
Expires: 2009-08-11
Abstract
Abstract Disclosed are a traverse apparatus and an image recording apparatus including a rotary member for traversing a material to be traversed, a storage unit for prestoring rotation control data based on diameter data corresponding to a rotation angle of the rotary member from a reference position in its circumferential direction, a detection unit for detecting the rotation angle of the rotary member, and a control unit for controlling an angular velocity of the rotary member on the basis of an output from the detection unit and a content of the storage unit so as to make a traverse velocity of the material to be traversed constant.
Inventors
- 👤 Keiji Ohkoda
- 👤 Hitoshi Inoue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:17
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/52; H02P5/56
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
106 words
A traverse apparatus comprising: a rotary member for pinching and traversing a material to be traversed; storage means for prestoring rotation speed control data based on diameter data throughout one rotation of the rotary member corresponding to a rotation angle of said rotary member from a reference position in a circumferential direction thereof; detection means for detecting the rotation angle of said rotary member; and control means for controlling an angular velocity of said rotary member on the basis of an output from said detection means and content of said storage means so as to make a traverse velocity of the material to be traversed constant.
Claim 2
Dependent Claim
106 words
A traverse apparatus comprising: a rotary member for pinching and traversing a material to be traversed; storage means for prestoring rotation speed control data based on diameter data throughout one rotation of the rotary member corresponding to a rotation angle of said rotary member from a reference position in a circumferential direction thereof; detection means for detecting the rotation angle of said rotary member; and control means for controlling an angular velocity of said rotary member on the basis of an output from said detection means and content of said storage means so as to make a traverse velocity of the material to be traversed constant.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1, wherein the rotation angle is detected by an encoder arranged coaxially with a rotation axis of said rotary member.
Claim 4
Dependent Claim
16 words
An apparatus according to claim 1, wherein said rotary member is driven by an ultrasonic motor.
Claim 5
Dependent Claim
30 words
A traverse apparatus according to claim 1, wherein said diameter data throughout one rotation includes information or deviation of the diameter caused by unevenness or eccentricity of the rotary member.
Claim 6
Dependent Claim
22 words
A traverse apparatus according to claim 1 further comprising scanning means for scanning a light beam to the material to be traversed.
Claim 7
Dependent Claim
19 words
A traverse apparatus according to claim 5 further comprising recording means for recording onto the material to be traversed.
Claim 8
Dependent Claim
36 words
A traverse apparatus according to claim 6, wherein said material to be traversed is a recording sheet and said recording means comprises means for performing image recording onto the recording sheet by scanning the light beam.
Claim 9
Dependent Claim
124 words
A traverse method comprising the steps of: measuring diameter data throughout one rotation of a rotary member corresponding to a rotation angle of the rotary member, for pinching and traversing a material to be traversed, from a reference position in a circumferential direction of said rotary member while rotating said rotary member at a constant angular velocity; calculating and storing rotation speed control data on the basis of the diameter data; detecting the rotation angle of said rotary member during traversing of the material to be traversed; and controlling the rotation speed of said rotary member at the pinching portion on the basis of the detected rotation angle and the stored content so as to make a peripheral velocity of said rotary member constant.
Claim 10
Dependent Claim
124 words
A traverse method comprising the steps of: measuring diameter data throughout one rotation of a rotary member corresponding to a rotation angle of the rotary member, for pinching and traversing a material to be traversed, from a reference position in a circumferential direction of said rotary member while rotating said rotary member at a constant angular velocity; calculating and storing rotation speed control data on the basis of the diameter data; detecting the rotation angle of said rotary member during traversing of the material to be traversed; and controlling the rotation speed of said rotary member at the pinching portion on the basis of the detected rotation angle and the stored content so as to make a peripheral velocity of said rotary member constant.
Claim 11
Dependent Claim
30 words
A traverse method according to claim 8, wherein said diameter data throughout one rotation includes information on deviation of the diameter caused by unevenness or eccentricity of the rotary member.
Claim 12
Dependent Claim
96 words
A traverse apparatus comprising: a rotary member for pinching and traversing a material to be traversed; storage means for prestoring rotation speed control data throughout one rotation of said rotary member based on diameter data corresponding to a rotation angle of said rotary member; detection means for detecting the rotation angle of said rotary member; and control means for controlling an angular velocity of said rotary member based on an output from said detection means and a content of said storage means so as to make a traverse velocity of the material to be traversed constant.
Claim 13
Dependent Claim
96 words
A traverse apparatus comprising: a rotary member for pinching and traversing a material to be traversed; storage means for prestoring rotation speed control data throughout one rotation of said rotary member based on diameter data corresponding to a rotation angle of said rotary member; detection means for detecting the rotation angle of said rotary member; and control means for controlling an angular velocity of said rotary member based on an output from said detection means and a content of said storage means so as to make a traverse velocity of the material to be traversed constant.
Claim 14
Dependent Claim
30 words
A traverse apparatus according to claim 10 wherein said diameter data throughout one rotation includes information of deviation of the diameter caused by unevenness or eccentricity of the rotary member.
Claim 15
Dependent Claim
22 words
A traverse apparatus according to claim 10 further comprising scanning means for scanning a light beam to the material to be traversed.
Claim 16
Dependent Claim
20 words
A traverse apparatus according to claim 12 further comprising recording means for performing recording onto the material to be traversed.
Claim 17
Dependent Claim
36 words
A traverse apparatus according to claim 13, wherein said material to be traversed is a recording sheet and said recording means comprises means for performing image recording onto the recording sheet by scanning the light beam.
References Cited (Backward Citations)
US3975761A
Cited
US3908641A
Cited
US4125881A
Cited
US4323832A
Cited
US4232371A
Cited
US4335336A
Cited
US4331159A
Cited
US4525654A
Cited
US4523234A
Cited
US4600866A
Cited
US4519039A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-10-07 | 1995-04-08 | 1995-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-10-07 | 1999-04-08 | 1999-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-10-07 | 2003-04-08 | 2003-10-08 | $7700.00 | Window Closed / Lapsed |