GB1263397A - Improvements in drill chucks - Google Patents

Improvements in drill chucks

Info

Publication number
GB1263397A
GB1263397A GB2713670A GB2713670A GB1263397A GB 1263397 A GB1263397 A GB 1263397A GB 2713670 A GB2713670 A GB 2713670A GB 2713670 A GB2713670 A GB 2713670A GB 1263397 A GB1263397 A GB 1263397A
Authority
GB
United Kingdom
Prior art keywords
chuck
spigot
diameter
plate
conical surface
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
Application number
GB2713670A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB1263397A publication Critical patent/GB1263397A/en
Expired legal-status Critical Current

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
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1253—Jaws movement actuated by an axially movable member

Abstract

1,263,397. Chucks. ROBERT BOSCH G.m.b.H. 5 June, 1970 [7 June, 1969], No. 27136/70. Heading B3B. In a three jaw drill chuck of the kind comprising a chuck body 1 having an internally screw-threaded bore 2 for screwing on to a drive spindle for operating the chuck, a sleeve 4 rigidly connected to the said body and having an internal conical surface 7, a jaw closing member 11 axially movable in the chuck body and comprising a plate 9 and a spigot 10 for abutting the spindle, and springs 14 supporting the jaws 12 against the internal conical surface 7, the said chuck is characterized in that the diameter of the spigot 10 is arranged to be at least one-third of the diameter of the plate 9, and the top endface of the spigot 10 and the bottom end-face of the plate 9, which faces extend perpendicularly to the axis of the chuck body, are arranged to lie in parallel planes. The diameter of the spigot 10 is preferably one-half the diameter of the plate 9, and the half-apex angle of the conical surface is between 24 and 28 degrees, preferably 26 degrees.
GB2713670A 1969-06-07 1970-06-05 Improvements in drill chucks Expired GB1263397A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19696922774 DE6922774U (en) 1969-06-07 1969-06-07 THREE-JAW DRILL CHUCK

Publications (1)

Publication Number Publication Date
GB1263397A true GB1263397A (en) 1972-02-09

Family

ID=6602716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2713670A Expired GB1263397A (en) 1969-06-07 1970-06-05 Improvements in drill chucks

Country Status (2)

Country Link
DE (1) DE6922774U (en)
GB (1) GB1263397A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11084105B2 (en) 2017-10-18 2021-08-10 Milwaukee Electric Tool Corporation Chuck assembly for a rotary power tool

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048274A1 (en) * 1980-12-20 1982-07-29 Otto 8961 Reicholzried Zettl DRILL CHUCK
DE19843206A1 (en) * 1998-09-16 2000-04-20 Siemens Ag Optical transmitter for multi-channel optical data transmission
US6241260B1 (en) 1999-08-17 2001-06-05 Black & Decker Inc. Spring-loaded quick clamp chuck
DE19945551C2 (en) * 1999-09-23 2002-08-08 Robert Schroeder Gmbh & Co Kg Miniature drill
DE10050155A1 (en) * 2000-10-11 2002-04-18 Beiersdorf Ag Stabilization of cosmetic or dermatological emulsions, hydrogels or oleogels useful eg as skin-care or make-up compositions is by addition of desferrioxamine
EP2694237B1 (en) 2011-04-05 2017-02-01 Milwaukee Electric Tool Corporation Auto sizing chuck

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11084105B2 (en) 2017-10-18 2021-08-10 Milwaukee Electric Tool Corporation Chuck assembly for a rotary power tool

Also Published As

Publication number Publication date
DE6922774U (en) 1970-02-12

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