US4032163A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick change in-motion tool chuck
Assignee: Individual
•
Filing: 1976-01-26
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Granted: 1977-06-28
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Expires: 1996-01-26
Abstract
Abstract A tool chuck includes a spindle having a barrel with an axial bore therein, and a collar slidably disposed about the barrel. A diametrical slot within the barrel receives a pair of opposed, pivoting toggles which engage and retain the end of a tool inserted in the barrel bore. The toggles are pivoted by a pair of linking members secured to a cylindrical member disposed in axially translatable fashion in the upper end of the bore. The cylindrical member is translated by the collar by means of an annular slot therein which receives opposed shoulders extending from the cylindrical member through another diametrical slot. Axial translation of the collar releases or secures a tool in the bore while the chuck is rotating at operating speed.
Inventors
- 👤 Donald G. Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:14
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/18; Y; Y10; Y10S; Y10S279/00; Y10S279/904; Y10T; Y10T279/00; Y10T279/17; Y10T279/17231; Y10T279/17239; Y10T279/17256; Y10T279/19; Y10T279/1953; Y10T409/00; Y10T409/30; Y10T409/309576
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
178 words
A tool chuck system for securing and removing a tool in a rotary machine during rotation thereof comprises a spindle adapted to be secured to the rotary machine, a barrel extending axially from said spindle, said barrel including a bore extending axially therein from the distal end thereof; an actuator member disposed about said barrel and slidably translatable thereon; a cylindrical member slidably disposed in the inner end of said bore; a first pair of opposed, diametrical slots disposed within said barrel; a pair of toggle members, each of said toggle members pivotally disposed in one of said first pair of slots; a pair of linking members, each of said linking members pivotally joined at one end to said cylindrical member and pivotally joined at the other end to one end of one of said toggle members, said linking members being rotatable through a position perpendicular to said axis of said barrel to form a past center linking arrangement with said toggle members, and means for joining said cylindrical member and said actuator member in axially slidable engagement.
Claim 2
Dependent Claim
178 words
A tool chuck system for securing and removing a tool in a rotary machine during rotation thereof comprises a spindle adapted to be secured to the rotary machine, a barrel extending axially from said spindle, said barrel including a bore extending axially therein from the distal end thereof; an actuator member disposed about said barrel and slidably translatable thereon; a cylindrical member slidably disposed in the inner end of said bore; a first pair of opposed, diametrical slots disposed within said barrel; a pair of toggle members, each of said toggle members pivotally disposed in one of said first pair of slots; a pair of linking members, each of said linking members pivotally joined at one end to said cylindrical member and pivotally joined at the other end to one end of one of said toggle members, said linking members being rotatable through a position perpendicular to said axis of said barrel to form a past center linking arrangement with said toggle members, and means for joining said cylindrical member and said actuator member in axially slidable engagement.
Claim 3
Dependent Claim
32 words
The tool chuck system of claim 1, wherein said means includes at least one additional slot disposed in said barrel and extending therethrough from said bore to the exterior of said barrel.
Claim 4
Dependent Claim
24 words
The tool chuck system of claim 2, wherein said means includes a detent secured to said cylindrical member and extending through said additional slot.
Claim 5
Dependent Claim
27 words
The tool chuck system of claim 3, wherein said actuator includes an annular groove in the interior surface thereof for engaging said detent in axially slidable engagement.
Claim 6
Dependent Claim
22 words
The tool chuck system of claim 2, wherein said at least one additional slot extends diametrically through said barrel and axially therealong.
Claim 7
Dependent Claim
32 words
The tool chuck system of claim 1, further including a recess in the inner end of said bore, and a compression spring disposed within said recess and impinging on said cylindrical member.
Claim 8
Dependent Claim
43 words
The tool chuck system of claim 1, wherein said cylindrical member includes an end slot in one end thereof for receiving said one end of each of said linking members, and a pivot pin extending through said end slot and said linking members.
Claim 9
Dependent Claim
27 words
The tool chuck system of claim 1, wherein the other end of each toggle member includes a detent portion for engaging a portion of a work-engaging tool.
Claim 10
Dependent Claim
24 words
The tool chuck system of claim 8, wherein said portion of said work-engaging tool includes a protrusion from the chuck-engaging end of said tool.
Claim 11
Dependent Claim
29 words
The tool chuck system of claim 9, wherein said protrusion includes a post extending from said tool, and a ring slidably secured about said post by axially resilient means.
Claim 12
Dependent Claim
19 words
The tool chuck system of claim 10, wherein said resilient means includes a spring-like washer and a snap ring.
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) | 1980-06-27 | 1980-12-27 | 1981-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-27 | 1984-12-27 | 1985-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-27 | 1988-12-27 | 1989-06-28 | $7700.00 | Window Closed / Lapsed |