Quick-acting tool bit holder

Details Quick-acting tool bit holder Quick-acting tool bit holder

2006-08-08

2006-08-08

Howell, Daniel W. (Department: 3722)

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

C279S082000, C279S145000

Reexamination Certificate

active

07086813

ABSTRACT:
A “snap-in” bit chuck assembly for a rotary hand or powered tool, includes an elongated body having a hex shank at its rearward end, an elongated retraction collar slidably disposed on the body, and an outer retaining collar fixed to the forward end of the body. The body has a coaxial hex socket formed therein to allow a reversible tool to be inserted thereinto. A slot is formed in the body, between the outer surface of the body and the internal hex socket. A coil spring surrounds the body, inside the retraction collar, and normally biases the retraction collar forwardly and biases a retaining clip toward the bottom of the angular slot. The retaining clip slides outwardly in the angular slot, against the bias of the coil spring, as the reversible tool is inserted, where a recess on the reversible tool is engaged and retained by the clip. The tool is removed by sliding the retraction collar rearwardly, to compress the coil spring and allow the retaining clip to retract back up the slot. The clip is directly engaged by the coil spring and has two legs extending about the body so that the clip is self-retaining. The clip legs extend around the body such that the retraction force on the coil spring is directed through the center of the coil spring to keep it coaxially aligned with the body.

REFERENCES:
patent: 632560 (1899-09-01), Furbish
patent: 1138465 (1915-05-01), Fegley et al.
patent: 1209572 (1916-12-01), Fegley
patent: 1653762 (1927-12-01), Fegley et al.
patent: 2663910 (1953-12-01), Danielson et al.
patent: 3031722 (1962-05-01), Gits
patent: 4155972 (1979-05-01), Hauser et al.
patent: 4577875 (1986-03-01), Miyakawa
patent: 4701083 (1987-10-01), Deutschenbaur et al.
patent: 5000631 (1991-03-01), Deutschenbaur et al.
patent: 5062749 (1991-11-01), Sheets
patent: 5447397 (1995-09-01), Asano
patent: 5470180 (1995-11-01), Jore
patent: 5709393 (1998-01-01), von Keudell et al.
patent: 5740586 (1998-04-01), Gomas et al.
patent: 6053675 (2000-04-01), Holland et al.
patent: 6474656 (2002-11-01), Thomas
patent: 6860489 (2005-03-01), Chen
patent: 6863280 (2005-03-01), Chiu
patent: 2 274 615 (1994-08-01), None
patent: 98/51450 (1998-11-01), None

Affiliated with

Also associated with

Rating

Quick-acting tool bit holder does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Quick-acting tool bit holder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quick-acting tool bit holder will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3647864