US3837265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for securing slitter or scorer head
Assignee: Rengo Co Ltd
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Filing: 1973-03-05
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Granted: 1974-09-24
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Expires: 1993-03-05
Abstract
Abstract A device for securing a slitter or scorer head to a rotary shaft. The head is slidably mounted on the rotary shaft and a constriction means is provided between the head and shaft. The constriction means comprises a constriction element provided on the inner periphery of the head, and a flat support face provided on the outer periphery of the shaft along the longitudinal axis thereof. The constriction element is projected from the inner periphery of the head into an aperture formed by the flat support face and the inner periphery of the head. The aperture has a section like a segment of a circle and is adapted to be higher than the projection. The slight rotation of the head in respect to the shaft causes the constriction element to pressure-contact with or separate from the flat face of the rotary shaft, the head thereby being fixed or released from fixing.
Inventors
- 👤 M Tokuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:06
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/26; B26D7/2614; B26D7/2621; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; Y; Y10; Y10T; Y10T83/00; Y10T83/647; Y10T83/6584; Y10T83/6587; Y10T83/6588; Y10T83/659; Y10T83/768; Y10T83/7809; Y10T83/7822; Y10T83/7847; Y10T83/929; Y10T83/9372; Y10T83/9377
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
237 words
A device for locking a slitter or scorer head on a rotary shaft whereby said slitter or scorer head may be readily positioned along the longitudinal axis of said rotary shaft at any desired location, said device comprising: said rotary shaft having a plurality of flat faces formed thereon along the longitudinal axis thereof; a plurality of rollers; the inner periphery of the slitter or scorer head having a plurality of bores formed therein at locations corresponding to each of the flat faces of the rotary shaft; one of said rollers mounted in each of said bores, said head positioned such that a portion of each roller projects into an aperture formed by the peripheral surface of said bore and the corresponding flat face of the rotary shaft, said aperture having sufficient depth such that said rollers are out of contact with the respective flat faces when centrally positioned relative thereto and contacting the respective flat faces when moved by rotation of said head, thereto; and the outer periphery of the head having a plurality of holes variously positioned about the periphery of said head for receiving therein a handle for rotating the head, whereby said head is locked by rotating it to a position where said rollers are positioned adjacent the edges of said flat faces, said head being unlocked by rotating said head to a position where said rollers are located centrally of said faces.
Claim 2
Independent Claim
237 words
A device for locking a slitter or scorer head on a rotary shaft whereby said slitter or scorer head may be readily positioned along the longitudinal axis of said rotary shaft at any desired location, said device comprising: said rotary shaft having a plurality of flat faces formed thereon along the longitudinal axis thereof; a plurality of rollers; the inner periphery of the slitter or scorer head having a plurality of bores formed therein at locations corresponding to each of the flat faces of the rotary shaft; one of said rollers mounted in each of said bores, said head positioned such that a portion of each roller projects into an aperture formed by the peripheral surface of said bore and the corresponding flat face of the rotary shaft, said aperture having sufficient depth such that said rollers are out of contact with the respective flat faces when centrally positioned relative thereto and contacting the respective flat faces when moved by rotation of said head, thereto; and the outer periphery of the head having a plurality of holes variously positioned about the periphery of said head for receiving therein a handle for rotating the head, whereby said head is locked by rotating it to a position where said rollers are positioned adjacent the edges of said flat faces, said head being unlocked by rotating said head to a position where said rollers are located centrally of said faces.
Claim 3
Dependent Claim
57 words
A device for locking a slitter or scorer head as claimed in claim 1, wherein a ridge is provided on each of said flat faces of the rotary shaft and extending along the entire length of the flat face, whereby the roller is prevented from advancing beyond said ridge when the head is rotated in one direction.
Claim 4
Dependent Claim
28 words
A device for locking a slitter or scorer head as claimed in claim 1, wherein a knurl is provided on the outer periphery of each of said rollers.
Claim 5
Dependent Claim
46 words
A device for locking a slitter or scorer head as claimed in claim 1, wherein a flat plate is detachably mounted in each of a plurality longitudinal grooves provided in the outer periphery of the rotary shaft so as to form each of said flat faces.
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |