Chop/table saw with parallelogram arrangement
First Claim
1. A saw comprising a frame, a table mounted in the frame and adapted to adopt two positions, a pivot member on a first side of the table, a saw assembly pivoted with respect to the pivot member, a blade journalled in said assembly, a motor to drive the blade, an upper guard to cover an upper portion of the blade, which upper guard is pivoted to said assembly, a slot in the table through which said blade is adapted to protrude, in a first of said two positions of the table the saw assembly being above the table, the saw thereby forming a chop saw for performing plunge cuts on workpieces supported on said first side of the table, and, in a second of said two positions of the table, the saw assembly being below the table and the saw thereby forming a bench saw for performing cuts on workpieces passed through the blade on a second opposite side of the table, a parallelogram lever having a pivotal connection to the pivot member and upper guard whereby an orientation of said upper guard with respect to said pivot member is maintained, and an extension of said parallelogram lever which, when the saw assembly is in its second position, is adapted to co-operate with said pivot member through an adjustment means so that the position of said saw assembly with respect to the table is controlled by said adjustment means.
1 Assignment
0 Petitions
Accused Products
Abstract
A saw (10) comprises a frame, a table (12) mounted in the frame and adapted to adopt two positions. A pivot member (14) is on a first side of the table and a saw assembly (16) is pivoted (at 18) to the pivot member. A blade (26) is journalled in the assembly and a motor (22) drives the blade. An upper guard (32) covers an upper portion of the blade and is pivoted to the assembly, while a lower guard (40) covers a lower portion of the blade. A slot in the table permits the blade to protrude through the table.
In a first of said two positions of the table, the saw assembly is above the table and the saw is a chop saw for performing plunge cuts on workpieces supported on said first side of the table (FIG. 1). In a second of said two positions, the saw assembly is below the table and the saw is a bench saw for performing cuts on workpieces passed through the blade on a second opposite side of the table (FIG. 2). A parallelogram lever (34) has a pivotal connection to the pivot member (at 38) and upper guard (at 36) whereby the orientation of the upper guard to the table is maintained. An extension (118) of the parallelogram lever has a rack (150) which, in bench saw mode, engages a worm gear (152) turnable by a knob to effect an adjustment to the depth of cut of the blade.
114 Citations
11 Claims
- 1. A saw comprising a frame, a table mounted in the frame and adapted to adopt two positions, a pivot member on a first side of the table, a saw assembly pivoted with respect to the pivot member, a blade journalled in said assembly, a motor to drive the blade, an upper guard to cover an upper portion of the blade, which upper guard is pivoted to said assembly, a slot in the table through which said blade is adapted to protrude, in a first of said two positions of the table the saw assembly being above the table, the saw thereby forming a chop saw for performing plunge cuts on workpieces supported on said first side of the table, and, in a second of said two positions of the table, the saw assembly being below the table and the saw thereby forming a bench saw for performing cuts on workpieces passed through the blade on a second opposite side of the table, a parallelogram lever having a pivotal connection to the pivot member and upper guard whereby an orientation of said upper guard with respect to said pivot member is maintained, and an extension of said parallelogram lever which, when the saw assembly is in its second position, is adapted to co-operate with said pivot member through an adjustment means so that the position of said saw assembly with respect to the table is controlled by said adjustment means.
Specification