SAW GUARD

• US 3,808,932 A
• Filed: 02/23/1973
• Issued: 05/07/1974
• Est. Priority Date: 02/23/1973
• Status: Expired due to Term

• Current Assignee: Ben C. Russell
• Original Assignee: Ben C. Russell
• Inventors: Russell, Ben C.
• Primary Examiner(s): Schran, Donald R.
• Application Number:
  US05/335,143
• Time in Patent Office: 438 Days
• Field of Search: 83/860,440.2,478,544,546,102.1
• US Class Current: 83/478
• CPC Class Codes: B27G 19/02 for circular saws
• CPC Class Codes: Y10T 83/732 With guard
• CPC Class Codes: Y10T 83/7734 With guard for tool
• CPC Class Codes: Y10T 83/8723 Adjustable
• CPC Class Codes: Y10T 83/96 Guard

Abstract

A guard for table mounted circular saws or the like including a saw guard bracket assembly supported for selective vertical and horizontal movements relative to the saw and for conjunctive tilting movements with the saw relative to the table.

Claims

1. A guard for circular saw or the like cutting device projecting upwardly through a table, said guard comprising in combination:

a standard upstanding above said table rearwardly of said saw and lying within the plane of rotation of said saw;

a first member;

first connector means for connecting said first member to an upper end of said standard for horizontal reciprocating movements relative thereto and within said plane;

a second member;

second connector means for connecting said second member to a forwardly extending end of said first member for vertical reciprocating movements relative thereto and within said plane; and

a saw guard assembly fixed to and depending from adjacent a lower end of second member for conjunctive movement therewith, and said assembly vertically straddling said saw.

2. The guard according to claim 1, wherein said table is characterized as including supporting means for said saw permitting tilting of the plane of rotation thereof relative to a top surface of said table, and a lower end of said standard is fixed to said supporting means for conjunctive tilting movement with said saw.

3. The guard according to claim 1, wherein said first member includes first latch means for releasably retaining said first member in at least one position relative to said standard.

4. The guard according to claim 3, wherein said second member includes second latch means for releasably retaining said second member in at least one position relative to said first member.

5. The guard according to claim 1, wherein said first connector includes a first guide rail fixed to extend horizontally and rearwardly from adjacent said upper end of said standard and means for mounting said first member on said first guide rail for movement lengthwise thereof, said second connector means includes a second guide rail fixed to extend upwardly from adjacent said forwardly extending end of said first member and means for mounting said second member on said second guide rail for movement lengthwise thereof.

6. The guard according to claim 5, wherein said assembly includes a pair of side plates formed from a transparent material and front and rear horizontally spaced spacer blocks for maintaining said side plates essentially parallel to and adjacent opposite sides of said saw and said standard, said standard freely upstanding between said side plates intermediate said spacer blocks.

7. The guard according to claim 6, wherein biasing means are provided to normally bias said assembly forwardly relative to said standard into a forward position determined by engagement of said rear spacer block with a rear edge surface of said standard, said assembly when in said forward position extending forwardly and rearwardly of said saw, the horizonTal spacing between said spacer blocks being sufficient to permit rearwardly directed movement of said assembly against said bias into a rearmost position wherein a forward end of said assembly is disposed rearwardly of a vertical plane passing through the axis of rotation of said saw.

8. The guard according to claim 5, wherein said first member and said first guide rail are of essentially U-shaped configuration and arranged with the legs thereof disposed in facing relationship, said means for mounting said first member includes a first traveler of essentially U-shaped configuration having legs thereof apertured to journal a plurality of associated ball bearings and disposed intermediate facing leg portions of said first member and said first guide rail, said first member and said first guide rail being formed with lengthwise extending grooves to receive said first traveler associated ball bearings whereby to support said first traveler for lengthwise directed movement relative to each of said first member and said first guide rail and movably interconnect said first member with said first guide rail, and said second member and said second guide rail are of essentially U-shaped configuration and arranged with the legs thereof disposed in facing relationship, said means for mounting said second member includes a second traveler of essentially U-shaped configuration having legs thereof apertured to journal a plurality of associated ball bearings and disposed intermediate facing leg portions of said second member and said second guide rail, said second member and said second guide rail being formed with lengthwise extending grooves to receive said second traveler associated ball bearings whereby to support said second traveler for lengthwise directed movement relative to each of said second member and said second guide rail and movably interconnect said second member with said second guide rail.

9. The guard according to claim 8, wherein said assembly includes a pair of side plates formed from a transparent material and front and rear horizontally spaced spacer blocks for maintaining said side plates essentially parallel to and adjacent opposite sides of said saw and said standard, said standard freely upstanding between said side plates intermediate said spacer blocks, and biasing means are provided to normally bias said assembly forwardly relative to said standard into a forward position determined by engagement of said rear spacer block with a rear edge surface of said standard, said assembly when in said forward position extending forwardly and rearwardly of said saw, the horizontal spacing between said spacer blocks being sufficient to permit rearwardly directed movement of said assembly against said bias into a rearmost position wherein a forward end of said assembly is dispoed rearwardly of a vertical plane passing through the axis of rotation of said saw.

10. The guard according to claim 9, wherein each of said first and second members carry set screws releasably engageable with said first and second guide rails for releasably latching said first and second members against movement relative thereto.