GB636021A - Improvements in or relating to tool holders or chucks for twist drills - Google Patents
Improvements in or relating to tool holders or chucks for twist drillsInfo
- Publication number
- GB636021A GB636021A GB480548A GB480548A GB636021A GB 636021 A GB636021 A GB 636021A GB 480548 A GB480548 A GB 480548A GB 480548 A GB480548 A GB 480548A GB 636021 A GB636021 A GB 636021A
- Authority
- GB
- United Kingdom
- Prior art keywords
- axially
- inner sleeve
- sleeve
- drill
- balls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/107—Retention by laterally-acting detents, e.g. pins, screws, wedges; Retention by loose elements, e.g. balls
- B23B31/1071—Retention by balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
636,021. Chucks and sockets. NORLANDER, H. G. Feb. 18, 1948, No. 4805. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 2, 1949]. [Class 83 (iii)] In a chuck for twist drills, a driving member 9, Fig. 2, adapted to engage the drill flutes so as to permit combined rotary and axial movement, but to prevent purely rotary movement, of the drill relatively thereto is connected to an axially-movable inner sleeve 2 which is secured to an axially-movable outer sleeve 3, and clamping balls 12 for preventing axial movement of the drill relatively to the member 9 are arranged in recesses in the sleeve 2 so as to co-act with a ring-shaped wedge-member 14 and engage the portions of the drill between the flutes thereof. The balls are moved radially outwards by moving the sleeve 3 axially against the action of a spring 8. In a modification, Fig. 5 (not shown), the balls are replaced by rollers. In another modification, Fig. 6, the driving member is formed integrally with the inner sleeve and a rotatable outer sleeve 3 is screwed to an axially slidable member 17 which is locked to the inner sleeve by means of a ball 18. In a further modification, Figs. 8 and 9 (not shown), the chuck body is provided with a recess to receive the locking ball when the inner sleeve is moved axially. In a still further modification, the inner sleeve is screwed directly to the chuck body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB480548A GB636021A (en) | 1948-02-18 | 1948-02-18 | Improvements in or relating to tool holders or chucks for twist drills |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB480548A GB636021A (en) | 1948-02-18 | 1948-02-18 | Improvements in or relating to tool holders or chucks for twist drills |
Publications (1)
Publication Number | Publication Date |
---|---|
GB636021A true GB636021A (en) | 1950-04-19 |
Family
ID=9784144
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB480548A Expired GB636021A (en) | 1948-02-18 | 1948-02-18 | Improvements in or relating to tool holders or chucks for twist drills |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB636021A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1236909B (en) * | 1955-04-04 | 1967-03-16 | New Britain Machine Co | Device for clamping and loosening tools by means of a clamping element mounted in the spindle so that it is longitudinally displaceable |
US5988957A (en) * | 1998-12-21 | 1999-11-23 | Black & Decker Inc. | Quick clamp |
US6126370A (en) * | 1998-07-22 | 2000-10-03 | Black & Decker Inc. | Removable tool holder |
EP1147839A2 (en) * | 2000-01-03 | 2001-10-24 | Alfred Raith GmbH | Quick release tool holder |
-
1948
- 1948-02-18 GB GB480548A patent/GB636021A/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1236909B (en) * | 1955-04-04 | 1967-03-16 | New Britain Machine Co | Device for clamping and loosening tools by means of a clamping element mounted in the spindle so that it is longitudinally displaceable |
US6126370A (en) * | 1998-07-22 | 2000-10-03 | Black & Decker Inc. | Removable tool holder |
US6224303B1 (en) | 1998-07-22 | 2001-05-01 | Black & Decker Inc. | Removable tool holder |
US6343901B2 (en) | 1998-07-22 | 2002-02-05 | Black & Decker Inc. | Removable tool holder |
US5988957A (en) * | 1998-12-21 | 1999-11-23 | Black & Decker Inc. | Quick clamp |
EP1147839A2 (en) * | 2000-01-03 | 2001-10-24 | Alfred Raith GmbH | Quick release tool holder |
EP1147839A3 (en) * | 2000-01-03 | 2003-02-12 | Alfred Raith GmbH | Quick release tool holder |
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