US4647052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool-holding device and tool support
Assignee: DORNAG AG
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Filing: 1984-09-25
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Granted: 1987-03-03
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Expires: 2004-09-25
Abstract
Abstract A tool support, or an extension or reduction part holding a tool support, is held by its shank in an axial bore of a socket of the tool-holding device. The socket has one or more further bores, the longitudinal axes of which each form an angle of from 0° to about 5° with a straight line perpendicular to the longitudinal axis of the socket. A setscrew disposed in one such further bore cooperates by means of a beveled or faceted surface at its lower end with a chucking surface running on the outside of the shank at an angle to the longitudinal axis thereof. Another setscrew may cooperate with a second such chucking surface forming an angle of about 45° with the first chucking surface. Faultless force-locking and a bias are produced between the end faces of the socket and of the tool support, thus making it possible to combine even large, heavy boring tools with universally usable tool-holding devices inasmuch as there is sufficient resistance to torsional stress between the tool-holding device and the tool support.
Inventors
- 👤 Willy Butikofer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:03
CPC Classifications
B; B23; B23Q; B23Q1/00; B23Q1/70; B23Q1/703; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/107; B23B31/1075; B23B31/1076; B23B51/00; B23B51/12; B23B51/126; B23Q11/00; B23Q11/10; B23Q11/1015; B23Q11/1023; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17761; Y10T279/17821; Y10T408/00; Y10T408/44; Y10T408/45; Y10T408/455; Y10T408/94; Y10T408/95; Y10T408/957; Y10T409/00; Y10T409/30; Y10T409/30952
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
108 words
A tool-holding device of the type having a mounting portion, a socket connected to said mounting portion, and one or more setscrews, said socket having a wall and an end face and including a first bore for receiving the shank of a tool support or the like and one or more further bores passing through said wall, and said setscrews being respectively disposed in said one or more further bores, wherein the improvements comprise: (a) one or more said setscrews each having a beveled or faceted surface at the end thereof intended to be situated nearest said shank and (b) said end face of said socket being concave.
Claim 2
Dependent Claim
108 words
A tool-holding device of the type having a mounting portion, a socket connected to said mounting portion, and one or more setscrews, said socket having a wall and an end face and including a first bore for receiving the shank of a tool support or the like and one or more further bores passing through said wall, and said setscrews being respectively disposed in said one or more further bores, wherein the improvements comprise: (a) one or more said setscrews each having a beveled or faceted surface at the end thereof intended to be situated nearest said shank and (b) said end face of said socket being concave.
Claim 3
Dependent Claim
26 words
The device of claim 1, comprising two said further bores disposed parallel to one another and two said setscrews respectively disposed in said two further bores.
Claim 4
Dependent Claim
36 words
The device of claim 1, wherein the longitudinal axis of each of said further bores forms an angle of from 0° to about 5° with a straight line perpendicular to the longitudinal axis of said socket.
Claim 5
Dependent Claim
23 words
The device of claim 1, wherein the longitudinal axis of said first bore does not coincide with the longitudinal axis of said socket.
Claim 6
Dependent Claim
23 words
The device of claim 1, wherein the longitudinal axis of said first bore is not parallel to the longitudinal axis of said socket.
Claim 7
Dependent Claim
15 words
The device of claim 1, wherein said wall of said socket includes a balancing surface.
Claim 8
Dependent Claim
41 words
The device of claim 1, further including a coolant duct running within said mounting portion and said socket, a part of said coolant duct running within said socket and being situated between said wall of said socket and said first bore.
Claim 9
Dependent Claim
175 words
A tool-holding device of the type having a mounting portion, a socket connected to said mounting portion, and at least two setscrews, said socket having a wall and an end face and including a first bore for receiving the shank of a tool support or the like and at least two further bores passing through said wall, and said at least two setscrews being respectively disposed in said at least two further borres, wherein the improvement comprises one or more of said at least two setscrews each having a beveled or faceted surface at the end thereof intended to be situated nearest said shank, said at least two further bores being disposed parallel to one another, two of said at least two setscrews being respectively disposed in said at least two further bores, the longitudinal axis of each of said at least two further bores forming an angle greater than 0° to about 5° with a straight line perpendicular to the longitudinal axis of said socket and said end face at said socket being concave.
Claim 10
Dependent Claim
175 words
A tool-holding device of the type having a mounting portion, a socket connected to said mounting portion, and at least two setscrews, said socket having a wall and an end face and including a first bore for receiving the shank of a tool support or the like and at least two further bores passing through said wall, and said at least two setscrews being respectively disposed in said at least two further borres, wherein the improvement comprises one or more of said at least two setscrews each having a beveled or faceted surface at the end thereof intended to be situated nearest said shank, said at least two further bores being disposed parallel to one another, two of said at least two setscrews being respectively disposed in said at least two further bores, the longitudinal axis of each of said at least two further bores forming an angle greater than 0° to about 5° with a straight line perpendicular to the longitudinal axis of said socket and said end face at said socket being concave.
Claim 11
Dependent Claim
23 words
The device of claim 8, wherein the longitudinal axis of said first bore does not coincide with the longitudinal axis of said socket.
Claim 12
Dependent Claim
15 words
The device of claim 8, wherein said wall of said socket includes a balancing surface.
Claim 13
Dependent Claim
74 words
A tool support for use with a tool-holding device, of the type having an end face and a shank intended to be inserted into a bore of said tool-holding device, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, said first chucking surface not running parallel to the longitudinal axis of said shank, and said end face being concave.
Claim 14
Dependent Claim
74 words
A tool support for use with a tool-holding device, of the type having an end face and a shank intended to be inserted into a bore of said tool-holding device, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, said first chucking surface not running parallel to the longitudinal axis of said shank, and said end face being concave.
Claim 15
Dependent Claim
21 words
The tool support of claim 11, further comprising one or more additional chucking surfaces formed on the outside of said shank.
Claim 16
Dependent Claim
24 words
The tool support of claim 11, wherein said first chucking surface forms an angle of about 45° with the longitudinal axis of said shank.
Claim 17
Dependent Claim
31 words
The tool support of claim 12, wherein said one or more additional chucking surfaces each form an angle greater than 0° to about 5° with the longitudinal axis of said shank.
Claim 18
Dependent Claim
27 words
The tool support of claim 12, wherein said first chucking surface forms an angle of about 45° with each of said one or more additional chucking surfaces.
Claim 19
Dependent Claim
118 words
A tool support for use with a tool-holding device, of the type having an end face and a shank intended to be inserted into a bore of said tool-holding device, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, further comprising one or more additional chucking surfaces formed on the outside of said shank, wherein said first chucking surface forms an angle of about 45° with the longitudinal axis of said shank, said one or more additional chucking surfaces each forming an angle of more than 0° to about 5° with the longitudinal axis of said shank and said end face being concave.
Claim 20
Dependent Claim
118 words
A tool support for use with a tool-holding device, of the type having an end face and a shank intended to be inserted into a bore of said tool-holding device, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, further comprising one or more additional chucking surfaces formed on the outside of said shank, wherein said first chucking surface forms an angle of about 45° with the longitudinal axis of said shank, said one or more additional chucking surfaces each forming an angle of more than 0° to about 5° with the longitudinal axis of said shank and said end face being concave.
Claim 21
Dependent Claim
160 words
An extension or reduction part for use with a tool-holding device, of the type having a shank intended to be inserted into a bore of said tool-holding device, a socket, and one or more setscrews, said socket having a wall and an end face and including a first bore for receiving a tool support and one or more further bores passing through said wall, and said one or more setscrews being respectively disposed in said one or more further bores, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, said first chucking surface not running parallel to the longitudinal axis of said shank, further comprising one or more additional chucking surfaces formed on the outside of said shank, wherein said first chucking surface forms an angle of about 45° with each of said one or more additional chucking surfaces and said end face is concave.
Claim 22
Dependent Claim
160 words
An extension or reduction part for use with a tool-holding device, of the type having a shank intended to be inserted into a bore of said tool-holding device, a socket, and one or more setscrews, said socket having a wall and an end face and including a first bore for receiving a tool support and one or more further bores passing through said wall, and said one or more setscrews being respectively disposed in said one or more further bores, wherein the improvement comprises a first chucking surface formed on the outside of said shank for cooperating with a setscrew of said tool-holding device, said first chucking surface not running parallel to the longitudinal axis of said shank, further comprising one or more additional chucking surfaces formed on the outside of said shank, wherein said first chucking surface forms an angle of about 45° with each of said one or more additional chucking surfaces and said end face is concave.
Claim 23
Dependent Claim
90 words
A tool-holding device comprising: (a) a mounting portion; (b) a socket connected to said mounting portion, said socket having: (i) a peripheral wall; (ii) a concave end face; (iii) a first bore leading from said end face for receiving the shank of the tool support or the like; and (iv) a second bore leading through said peripheral wall to said first bore; and (c) a first setscrew received in said second bore, said first setscrew having a beveled or faceted surface at the end thereof adjacent to said first bore.
Claim 24
Dependent Claim
90 words
A tool-holding device comprising: (a) a mounting portion; (b) a socket connected to said mounting portion, said socket having: (i) a peripheral wall; (ii) a concave end face; (iii) a first bore leading from said end face for receiving the shank of the tool support or the like; and (iv) a second bore leading through said peripheral wall to said first bore; and (c) a first setscrew received in said second bore, said first setscrew having a beveled or faceted surface at the end thereof adjacent to said first bore.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-03-02 | 1990-09-01 | 1991-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-03-02 | 1994-09-01 | 1995-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-03-02 | 1998-09-01 | 1999-03-03 | $7700.00 | Window Closed / Lapsed |