EP 0415964 A4 19910417 - KEYLESS CHUCK
Title (en)
KEYLESS CHUCK
Publication
Application
Priority
- US 19984188 A 19880527
- US 19984288 A 19880527
Abstract (en)
[origin: WO8911368A1] An axially movable sleeve (36) has interference members or lugs (38) associated with the split nut (34) in a chuck. When the chuck is driven by the spindle (18), the axially movable interference members (38) engage the split nut interference members (40) and are restrained from rotation. The nut (34) is also restrained and the chuck jaws (30) open or close depending upon the direction of rotation of the chuck body (24). The sleeve (36) is positioned to be engaged by the jaws (30) as they approach the full open position. The jaws (30) then move the sleeve (36) axially to disengage the interference members (40, 38) and stop further opening of the jaws (30) before they reach a position to wedge or jam in the open position.
IPC 1-7
IPC 8 full level
B23B 31/173 (2006.01); B23B 31/12 (2006.01)
CPC (source: EP)
B23B 31/1238 (2013.01); B23B 2231/06 (2013.01); B23B 2231/38 (2013.01)
Citation (search report)
- No further relevant documents have been disclosed.
- See references of WO 8911368A1
Designated contracting state (EPC)
CH DE FR GB IT LI
DOCDB simple family (publication)
WO 8911368 A1 19891130; EP 0415964 A1 19910313; EP 0415964 A4 19910417; JP H03504943 A 19911031
DOCDB simple family (application)
US 8901945 W 19890504; EP 89905508 A 19890504; JP 50528489 A 19890504