US5178497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposited reamer tool
Assignee: Komatsu Ltd
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Filing: 1989-08-30
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Granted: 1993-01-12
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Expires: 2009-08-30
Abstract
Abstract The present invention relates to an electrodeposited reamer tool (1) for use in precision bore processing. In this electroplated reamer tool (1), a work processing portion (3) in a reamer body is constituted by a finishing portion (4) having a cylindrical outer peripheral surface and a cutting portion (5) provided on the distal end side of the finishing portion (4) and having a tapered configuration, and abrasive grains (6) are electrodeposited on the outer peripheral surfaces of the finishing portion (4) and the cutting portion (5). In the electrodeposited reamer tool (1) is inserted into a prepared hole provided in a work, the prepared hole is enlarged by the cutting portion (5), and the inner surface of the bore is finished by the finishing portion (4). Accordingly, it is possible to form a precision bore of a predetermined inner diameter in a work without preprocessing the prepared hole with precision.
Inventors
- 👤 Hiroyuki Kitabayashi
- 👤 Tadayuki Ishikawa
- 👤 Hiroyuki Kuroda
- 👤 Yoshihiko Nakakoji
- 👤 Masaki Nobuhara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:41
CPC Classifications
B; B23; B23D; B23D77/00; B23D77/14; Y; Y10; Y10T; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/81
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
126 words
An electrodeposited reamer tool characterized by: a finishing portion having a cylindrical outer peripheral surface; and a cutting portion provided on an end side of said finishing portion, an outer peripheral surface in an axial cross section of said cutting portion being curved so as to have a tapered configuration, wherein abrasive grains are electrodeposited on said outer peripheral surface of said finishing portion and said outer peripheral surface of said cutting portion, the abrasive grains electrodeposited on said finishing portion are being trued; and wherein abrasive grains having a grain size greater than that of said abrasive grains electrodeposited on said outer peripheral surface of said finishing portion are electrodeposited on at least an end portion of said outer peripheral surface of said cutting portion.
Claim 2
Dependent Claim
126 words
An electrodeposited reamer tool characterized by: a finishing portion having a cylindrical outer peripheral surface; and a cutting portion provided on an end side of said finishing portion, an outer peripheral surface in an axial cross section of said cutting portion being curved so as to have a tapered configuration, wherein abrasive grains are electrodeposited on said outer peripheral surface of said finishing portion and said outer peripheral surface of said cutting portion, the abrasive grains electrodeposited on said finishing portion are being trued; and wherein abrasive grains having a grain size greater than that of said abrasive grains electrodeposited on said outer peripheral surface of said finishing portion are electrodeposited on at least an end portion of said outer peripheral surface of said cutting portion.
Claim 3
Dependent Claim
18 words
An electrodeposited reamer tool according to claim 1, wherein said cutting portion is provided with a ceramic coating.
Claim 4
Dependent Claim
35 words
An electrodeposited reamer tool according to claim 1, wherein a plurality of notches extending along a central axis of rotation are formed on said outer peripheral surfaces of said finishing portion and said cutting portion.
Claim 5
Dependent Claim
41 words
An electrodeposited reamer tool according to claim 1, wherein there are provided an oil supplying passage extending along a central axis of rotation and an oil hole communicating between said oil passage and said outer peripheral surface of said cutting portion.
Claim 6
Dependent Claim
36 words
An electrodeposited reamer tool according to claim 4, wherein said oil hole is provided in such a manner as to extend by being inclined diagonally toward the tip with respect to said central axis of rotation.
Claim 7
Dependent Claim
30 words
An electrodeposited reamer tool according to claim 4, wherein an oil reservoir in which said oil hole is open is formed on said outer peripheral surface of said cutting portion.
Claim 8
Dependent Claim
50 words
An electrodeposited reamer tool according to claim 6, wherein said oil hole is formed and a length of said oil reservoir are determined by conditions including a diameter of a prepared hole in a work, a finished diameter, an allowance for tool withdrawal, and a radius of a tool tip.
References Cited (Backward Citations)
DE237973C
Cited
SU157196A1
Cited
USRE24769E
Cited
US3510990A
Cited
SU384660A1
Cited
US4757645A
Cited
GB2192356A
Cited
JPH0197571A
Cited
DE8804567U1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-01-12 | 1996-07-13 | 1997-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-01-12 | 2000-07-13 | 2001-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-01-12 | 2004-07-13 | 2005-01-12 | $7700.00 | Window Closed / Lapsed |