Drill stand

Details Drill stand Drill stand

1997-12-08

1999-09-21

Howell, Daniel W.

Cutting by use of rotating axially moving tool

With work-engaging structure other than tool or tool-support

Movable relative to tool along tool-axis

408135, 408241S, 408712, B23B 4514

Patent

active

059544600

ABSTRACT:
An improved drill stand is provided which includes a stand column slidably connected to a bearer unit so that the position or height of the bearer unit with respect to the stand column may be adjusted. The bearer unit includes a gear segment which is biased toward the retracted position by a reset spring. The gear segment is meshed with a geared slide rod. The geared slide rod may be disposed parallel to or perpendicular to the stand column. The slide rod is connected to a machine receiving part. Rotation of the gear segment with respect to the bearer unit against the bias of the reset spring results in movement of the slide rod in the machine receiving part towards an extended position. The machine receiving part is also connected to a bit stop rail. The bit stop rail is connected to a bit stop. The position of the bit stop along the bit stop rail is also adjustable. Movement of the machine receiving part towards the extended position is limited by engagement of the bit stop with the bearer unit.

REFERENCES:
patent: 3837757 (1974-09-01), Levine
patent: 4582105 (1986-04-01), Wolff
patent: 5062743 (1991-11-01), Wieland et al.
patent: 5096340 (1992-03-01), Forsgren
patent: 5127775 (1992-07-01), Broadbent et al.
patent: 5660508 (1997-08-01), Schneider

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