Clutch bearing to keep media tension for better sensing accuracy
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B65H-005/34
B65H-005/06
출원번호
US-0437024
(2017-02-20)
등록번호
US-10252874
(2019-04-09)
발명자
/ 주소
Lim, Boon Kheng
Yap, Yaw Horng
Wong, Chin Young
출원인 / 주소
DATAMAX-O'NEIL CORPORATION
대리인 / 주소
Additon, Higgins & Pendleton, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
239
초록▼
A bidirectional media supporting system includes a first and second rollers configured to rotate to feed media in forward and reverse feed modes; a first clutch bearing set, and a second clutch bearing set configured to engage with the first clutch bearing set; and a gear transmission assembly confi
A bidirectional media supporting system includes a first and second rollers configured to rotate to feed media in forward and reverse feed modes; a first clutch bearing set, and a second clutch bearing set configured to engage with the first clutch bearing set; and a gear transmission assembly configured to transfer a driving force from the first roller to the second roller. A method for reversing direction of printing media includes advancing media while maintaining a rotational speed of a platen roller assembly above that of a feeding roller assembly; receiving a signal to reverse the direction of advancing media; and adjusting operation by reversing a direction of rotation of a transmission gear coupled to the feeding and platen roller assemblies, and by rotating the roller assemblies in an opposite direction, while maintaining the rotational speed of the platen roller assembly below that of the feeding roller assembly.
대표청구항▼
1. A clutch bearing assembly, comprising: a platen roller assembly having a longitudinal axis, a first end and a second end, and configured to spin in a clockwise direction and in a counterclockwise direction around the longitudinal axis;a pulley assembly operably coupled to the first end of the pla
1. A clutch bearing assembly, comprising: a platen roller assembly having a longitudinal axis, a first end and a second end, and configured to spin in a clockwise direction and in a counterclockwise direction around the longitudinal axis;a pulley assembly operably coupled to the first end of the platen roller assembly, and configured to spin along with the platen roller assembly in the clockwise and counterclockwise direction;a compound gear assembly operably coupled to the pulley assembly with a belt, and configured to be driven by the pulley assembly in the clockwise and counterclockwise direction;a feed roller assembly positioned parallel to the longitudinal axis of the platen roller assembly, having a first end and a second end, and configured to spin along with the platen roller assembly in the clockwise and counterclockwise direction;a first shaft operably coupled to the first end of the feed roller assembly, havinga first gear configured to be driven by the compound gear assembly, and to turn along with the first shaft, anda first clutch bearing configured to grip tightly when the first shaft is spinning in the clockwise direction, and to slip when the first shaft is spinning in the counterclockwise direction; anda second shaft operably coupled to the first end of the feed roller assembly, positioned parallel to the first shaft, havinga second gear engaged with the first clutch bearing, and configured to turn with the second shaft, anda second clutch bearing engaged with the first gear, and configured to grip tightly and drive when the second shaft is spinning in the clockwise direction, and to slip when the second shaft is spinning in the counterclockwise direction. 2. The assembly according to claim 1, wherein the platen roller assembly is configured to have a rotational speed exceeding a rotational speed of the feed roller during spinning in the clockwise direction. 3. The assembly according to claim 2, wherein the rotational speed of the platen roller assembly exceeds the rotational speed of the feed roller assembly by about 2-5%. 4. The assembly according to claim 1, wherein the feed roller assembly is configured to have a rotational speed exceeding a rotational speed of the platen roller assembly during spinning in the counterclockwise direction. 5. The assembly according to claim 4, wherein the rotational speed of the feed roller assembly exceeds the rotational speed of the platen roller assembly by about 2-5%. 6. The assembly according to claim 1, wherein the engagement between the second gear and the first clutch bearing is provided by slots formed in a face of the second gear and extensions formed on a face of the first clutch bearing, and wherein such extensions extend into such slots. 7. The assembly according to claim 1, wherein the engagement between the first gear and the second clutch bearing is provided by slots formed in a face of the first gear and extensions formed on a face of the second clutch bearing, and wherein such extensions extend into such slots. 8. A bidirectional media supporting system, comprising: a first roller configured to rotate to feed media in a forward feed mode and in a reverse feed mode;a second roller positioned parallel to the first roller, and configured to rotate in the same direction as the first roller;a first clutch bearing set operably coupled to the second roller;a second clutch bearing set operably coupled to the second roller, and configured to engage with the first clutch bearing set; anda gear transmission assembly, operably coupled to the first roller with a belt pulley assembly, and directly coupled to the second roller with the first clutch bearing set, and configured to transfer a driving force from the first roller to the second roller, the second clutch bearing set on the same shaft as the second roller. 9. The system according to claim 8, wherein the first clutch bearing set is configured to drive in the forward feed mode, rotating in the same direction as the first and second rollers. 10. The system according to claim 8, wherein the second clutch bearing set is configured to drive in the reverse feed mode, rotating in the same direction as the first and second rollers. 11. The system according to claim 8, wherein the first clutch bearing set includes a first shaft assembly, a first gear coaxial with the first shaft assembly and configured to rotate along with the first shaft assembly, and a first clutch coaxial with the first shaft assembly. 12. The system according to claim 11, wherein the first clutch comprises a one-way clutch. 13. The system according to claim 11, wherein the second clutch bearing set includes a second shaft assembly, a second gear coaxial with the second shaft assembly and configured to rotate along with the second shaft assembly, and a second clutch coaxial with the second shaft assembly. 14. The system according to claim 13, wherein the second clutch comprises a one-way clutch. 15. The system according to claim 8, wherein the media includes a long label. 16. The system according to claim 8, wherein the media includes a short label. 17. The system according to claim 8, wherein the supporting system is configured to operate as a label printer bidirectional media supporting system. 18. A method for reversing direction of printing media, comprising: advancing media in a first direction, with a feeding roller assembly and a platen roller assembly, by rotating the feeding roller assembly and the platen roller assembly in the first direction and maintaining a rotational speed of the platen roller assembly above a rotational speed of the feeding roller assembly;receiving a signal to reverse the first direction of advancing media; andadjusting operation of the feeding roller assembly and the platen roller assembly by reversing a direction of rotation of a transmission gear assembly operably coupled to the feeding roller assembly and the platen roller assembly, and by rotating the feeding roller assembly and the platen roller assembly in a second direction opposite the first direction and maintaining the rotational speed of the platen roller assembly below the rotational speed of the feeding roller assembly. 19. The method according to claim 18, wherein a difference in the rotational speed of the platen roller assembly and the feeding roller assembly comprises about 2-4%. 20. The method according to claim 18, wherein the reversing a direction of rotation of a transmission gear occurs instantaneously.
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