Woodworking – Planer – Adjustable work carrier
Reexamination Certificate
2001-10-19
2003-02-04
Bray, W. Donald (Department: 3725)
Woodworking
Planer
Adjustable work carrier
C144S114100, C144S286500
Reexamination Certificate
active
06513557
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a device for quick elevating and micro-adjusting a planing workbench, particularly to one possible to have a planing workbench locked and moved up or down safely and conveniently.
The elevating device of a conventional planing machine, as shown in
FIG. 1
, includes a slanting base provided at one side of the planing machine and a slanting surface assembled on the slanting base. In handling, a threaded rod is rotated by a hand-wheel to let the workbench move up and down on the slanting base of the planning machine. However, according to such a conventional device, the threaded rod is limited to move up or down by its threads without a function of micro-adjusting.
SUMMARY OF THE INVENTION
The main objective of this invention is to offer a device for quickly elevating and micro-adjusting a planing workbench, having a guide plate and a locking grip provided at one side of an adjusting device for controlling the workbench to move up or down quickly just by unscrewing the locking grip, ensuring safety in handling.
Another objective of this invention is to offer a device for quick elevating and micro-adjusting a planing workbench, in which the movable workbench is restricted and guided to move up or down by a crescent-shaped sliding groove of a guide plate, possible to adjust and control the movable workbench smoothly.
REFERENCES:
patent: 2601879 (1952-07-01), VanDam
patent: 2804107 (1957-08-01), Taylor
patent: 2960125 (1960-11-01), Erickson et al.
patent: 5533557 (1996-07-01), Jedlicka et al.
patent: 5979521 (1999-11-01), Garcia
Bray W. Donald
Troxell Law Office PLLC
LandOfFree
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