Patent US3579781A successfully refreshed from Google Patents.
US3579781A
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Sleeved roll and method of making the same
Assignee: Hitachi Ltd
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Filing: 1968-07-24
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Granted: 1971-05-25
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Expires: 1988-07-24
Abstract
Abstract A sleeved roll which comprises a sleeve and an arbor fitted in the sleeve by means of shrink fitting wherein the arbor and the sleeve are, respectively, provided at the opposed end portions thereof with annular grooves into which metal rings having good welding characteristics are tightly fitted, respectively, in such a manner that the metal rings in the sleeve combine with those in the arbor to form a U-shaped annular ring when they are firmly secured to each other by means of deposit metal which has a smooth surface, the radial section of the grooves and the united metal rings having such a contour as to withstand slip between the sleeve and the arbor.
Inventors
- 👤 Toshio Yaegashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:07
CPC Classifications
B; B23; B23P; B23P11/00; B21; B21B; B21B27/00; B21B27/02; B21B27/03; B23P11/02; B23P11/025; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49544; Y10T29/49547; Y10T29/49549; Y10T29/49552; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
122 words
A sleeved roll comprising an arbor having a body portion and a sleeve secured to the body portion of the arbor by shrink fitting, the improvement being characterized by the provision on the opposed end portions of the sleeve and the body portion of the arbor of respective annular grooves forming an annular channel, first and second metal rings of a metal having good welding characteristics shrink-fitted tightly in respective opposed annular grooves and, deposit metal securing the first and second metal rings to each other and having a smoothed surface, said rings and the grooves within which they are mounted being contoured to lock said rings against slipping axially towards the ends of the sleeve and body portion of the arbor.
Claim 2
Dependent Claim
122 words
A sleeved roll comprising an arbor having a body portion and a sleeve secured to the body portion of the arbor by shrink fitting, the improvement being characterized by the provision on the opposed end portions of the sleeve and the body portion of the arbor of respective annular grooves forming an annular channel, first and second metal rings of a metal having good welding characteristics shrink-fitted tightly in respective opposed annular grooves and, deposit metal securing the first and second metal rings to each other and having a smoothed surface, said rings and the grooves within which they are mounted being contoured to lock said rings against slipping axially towards the ends of the sleeve and body portion of the arbor.
Claim 3
Dependent Claim
44 words
A sleeved roll according to claim 1 wherein at least one of said first and second rings has an annular axial projection locking with a corresponding recess in the groove into which it is fitted to prevent slipping of said ring from its groove.
Claim 4
Dependent Claim
30 words
A sleeved roll according to claim 2, wherein said annular projection has curved corner surfaces so as to avoid reduction of the shearing strength of the sleeve and the arbor.
Claim 5
Dependent Claim
29 words
A sleeved roll according to claim 2, wherein the annular channel provided in the oppOsed end portions of the sleeve and the arbor has a substantially U-shaped cross section.
Claim 6
Dependent Claim
28 words
A sleeved roll according to claim 4, wherein the combined annular metal rings fitted in the annular grooves forming the annular channel have a substantially U-shaped cross section.
Claim 7
Dependent Claim
22 words
A sleeved roll according to claim 1, wherein the metal rings have a tensile strength of from about 35 to 60 kg./mm.2.
Claim 8
Dependent Claim
22 words
A sleeved roll according to claim 1, wherein the metal rings have a tensile strength of from about 40 to 55 kg./mm.2.
Claim 9
Dependent Claim
37 words
A sleeved roll according to claim 1, wherein the metal rings are made of a material selected from a group consisting of mild steel and high tensile steel having a tensile strength less than about 60 kg/mm2.
Claim 10
Dependent Claim
24 words
A sleeved roll according to claim 1, wherein the deposit metal is formed of the same basic material as that of the metal rings.
Claim 11
Dependent Claim
38 words
A sleeved roll according to claim 1, wherein at least one of the annular grooves has dovetail tapered structure being narrower at the mouth than at the base to resist against slipping between the arbor and the sleeve.
Claim 12
Dependent Claim
32 words
A sleeved roll according to claim 10, wherein one of the opposed metal rings has an annular axial projection locking with a corresponding recess in the groove into which it is fitted.
Claim 13
Dependent Claim
16 words
A sleeve roll according to claim 10 wherein both annular grooves have a dovetail tapered configuration.
Claim 14
Dependent Claim
39 words
A sleeve roll according to claim 10 wherein the other groove has a radial configuration and an axial recess at the base thereof, the ring fitted in said other groove having an axial projection fitted in said axial recess.
Claim 15
Dependent Claim
33 words
A sleeve roll according to claim 1 wherein said first ring is formed of three parts secured to one another and said second ring is formed of two parts secured to one another.
Claim 16
Dependent Claim
37 words
A sleeve roll according to claim 1 wherein said first and second rings are made of a metal selected from a group consisting of mild steel and high tensile steel having a hardness less than 250 Hv.
Claim 17
Independent Claim
87 words
A method of making a sleeved-type roll which comprises the steps; forming grooves at the opposed end portions of the arbor and the sleeve respectively; inserting tightly metal rings having annular axial projections into the respective grooves by shrink fitting; fitting tightly the sleeve onto the arbor by means of shrink fitting; welding the opposed metal rings so as to secure them to each other; and cutting the surface of the welded portion securing the rings together in order to obtain a predetermined shape for the roll.
Claim 18
Independent Claim
87 words
A method of making a sleeved-type roll which comprises the steps; forming grooves at the opposed end portions of the arbor and the sleeve respectively; inserting tightly metal rings having annular axial projections into the respective grooves by shrink fitting; fitting tightly the sleeve onto the arbor by means of shrink fitting; welding the opposed metal rings so as to secure them to each other; and cutting the surface of the welded portion securing the rings together in order to obtain a predetermined shape for the roll.
Claim 19
Dependent Claim
40 words
The method according to claim 16, wherein the sleeve and the arbor are fitted by means of thermal-shrink fitting with a shrink fitting margin in a range of about 0.5 to 0.8 millimeters for the sleeve of 1000 millimeters thickness.
Claim 20
Dependent Claim
43 words
The method according to claim 16, wherein the metal rings are inserted by means of chill fitting into the annular grooves with a shrink fitting margin in a range of about 2 to 10 millimeters for the metal rings of 100 millimeters thickness.
Claim 21
Dependent Claim
24 words
The method according to claim 16 wherein the step of welding includes supporting the rings with welding fetters to prevent deformation of the rings.
Claim 22
Dependent Claim
27 words
The method according to claim 19 wherein the step of welding additionally includes peening the welding material at every layer of about 2 to 5 millimeters thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |