公开(公告)号：WO1992000172A1

公开(公告)日：1992-01-09

申请号：PCT/US1991003025

申请日：1991-05-02

Applicant: SHOPSMITH, INC.

Inventor： SHOPSMITH, INC. ,  BERKELEY, James, E. ,  FLORA, David, D.

IPC: B27G19/00

CPC classification number: B27G21/00 ,  B23Q3/002

Abstract: A guard as disclosed of use with a woodworking tool such as a jointer having a worktable (14), a cutter head and a guide fence (16) for guiding a workpiece through the jointer. The guard (10) is pivotally mounted to the table (14) and is biased toward the guide fence such that it covers the cutter head when a workpiece is not present. The guard includes a body portion (22) and flexible fingers (74), formed integrally with and extending from the body portion toward the guide fence. The flexible fingers act as a featherboard during a jointing operation and the pivotal movement of the guard may be limited such that the fingers (14) engage a workpiece as it is fed through the jointer to thereby apply a biasing force against the workpiece toward the guide fence. The fingers (74) further act to resist movement of the workpiece in a direction opposite to the feed direction during a kickback situation and thereby provide greater control over the workpiece.

公开(公告)号：WO1991001860A1

公开(公告)日：1991-02-21

申请号：PCT/US1990004257

申请日：1990-07-30

Applicant: SHOPSMITH, INC.

Inventor： SHOPSMITH, INC. ,  LEGLER, John, G. ,  FLORA, David, D. ,  SCHAEFER, William, J., Jr. ,  SNYDER, Steven, A.

IPC: B27C01/00

CPC classification number: B27C9/02 ,  Y10T29/50 ,  Y10T408/31

Abstract: A power module for providing power to any one of a plurality of special purpose woodworking tools has a variable speed headstock (20) on a base (10), and a tool support carriage (22) on the base (10). The tool support carriage is formed with two pairs of tube receiving sockets for receiving the support tubes of a special purpose woodworking tool. The sockets are formed at two different levels above the base (10), such levels corresponding to the difference in spacing of the input shaft connections with respect to the support tubes. The base (10) is mounted for movement toward and away from the headstock (20), providing alignment of the input shaft with the headstock hub (25). A variable speed drive in the headstock employs an intermediate three-section pulley of the variator type, and a speed control knob (32) is connected to position the variable speed drive to provide for the selection of speed for any particular tool.