US4536112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protection device against overloads in a machine
Assignee: ORELIKON-BOEHRINGER GmbH
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Filing: 1982-09-22
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Granted: 1985-08-20
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Expires: 2002-09-22
Abstract
Abstract The invention relates to an overload protection device for a machine tool, in which a carriage carried on the machine bed is displaceable, between the tailstock and the headstock by a lead screw [driven] by a drive motor and a feed gearing, and in which the lead screw nut is joined to the carriage by at least one joining bolt. To permit a very quick restoration of the machine to service after a collision between the carriage and a component present in its path of movement, while the predetermined dimensional relationship is restored without additional readjustment, the overload protection device is constructed such that the joining bolt has a break-away section in the area of the junction between the carriage and the lead screw nut.
Inventors
- 👤 Anton Horsky
- 👤 Siegfried Kuhn
- 👤 Wolf-Dietrich Voss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:22
CPC Classifications
F; F16; F16P; F16P5/00; B; B23; B23Q; B23Q11/00; B23Q11/04; B23Q5/00; B23Q5/54; B23Q5/58; F16B; F16B2200/00; F16B2200/50; F16B2200/506; F16B2200/63; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30392; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18696; Y10T82/00; Y10T82/25; Y10T82/2531; Y10T82/2549
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
84 words
In a machine tool having a machine bed, a carriage carried on said machine bed, a lead screw for reciprocating said carriage on said machine bed, a flange and a lead screw nut connected to the flange and connecting said lead screw to said carriage; an overload protecting device comprising: at least one first connecting screw connecting said flange to said carriage, and at least one second connecting screw connecting said flange to said nut, each of said connecting screws having a break-away section.
Claim 2
Dependent Claim
84 words
In a machine tool having a machine bed, a carriage carried on said machine bed, a lead screw for reciprocating said carriage on said machine bed, a flange and a lead screw nut connected to the flange and connecting said lead screw to said carriage; an overload protecting device comprising: at least one first connecting screw connecting said flange to said carriage, and at least one second connecting screw connecting said flange to said nut, each of said connecting screws having a break-away section.
Claim 3
Dependent Claim
57 words
The combination according to claim 1, wherein each first connecting screw has a first threaded section, said break-away section, and a second threaded section, a head for screwing said second threaded section into said carriage, and a nut threadedly engaging said first threaded section to thereby fix the position of said lead screw nut to said carriage.
Claim 4
Dependent Claim
38 words
The combination according to claim 2, wherein said flange has at least one bore, a portion of said first threaded section, said break-away section and said nut of said first connecting screw being located in the said bore.
Claim 5
Dependent Claim
33 words
The combination according to claim 2 or 3, wherein said lead screw nut has a threaded bore, said second threaded section of said first connecting screw being threadedly received in said threaded bore.
Claim 6
Dependent Claim
65 words
The combination according to claim 1, wherein each first connecting screw has a screw head, said break-away section and a threaded section, said screw head and said threaded section each being provided with a polygonal bore for receiving a plug wrench, said threaded section connecting said connecting screw to said carriage and said screw head fixing the position of said nut of said lead screw.
Claim 7
Dependent Claim
13 words
The combination according to claim 5, wherein said polygonal bores have different diameters.
Claim 8
Dependent Claim
67 words
The combination according to claim 1, wherein said connecting screw has a screw head, said break-away section, and a threaded section, said threaded section having a polygonal bore, a through-bore extending from said polygonal bore to said screw head for passage of a plug wrench, said threaded section being threadedly engaged in said carriage, said screw head fixing the position of said nut of said lead screw.
Claim 9
Dependent Claim
18 words
The combination according to claim 7, wherein said screw head comprises a threaded section and an associated nut.
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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) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |