Adjustable/bypassable bevel stop for compound miter saw

• US 5,623,860 A
• Filed: 12/15/1994
• Issued: 04/29/1997
• Est. Priority Date: 12/15/1994
• Status: Expired due to Term

• Current Assignee: Homer TLC Incorporated (The Home Depot, Inc.)
• Original Assignee: Emerson Electric Company
• Inventors: Brundage, Richard B., Schoene, Keith R., Terpstra, Daniel A., Tomiser, Frank J. Jr.
• Primary Examiner(s): Rada, Rinaldi I.
• Assistant Examiner(s): ASHLEY, BOYER DOLINGER
• Application Number:
  US08/356,518
• Time in Patent Office: 866 Days
• Field of Search: 83/471.3, 83/473, 83/477.1, 83/581, 83/483, 83/491, 83/564, 83/490
• US Class Current: 83/471.3
• CPC Class Codes: B23D 45/044 the saw blade being adjustable according to angle of cut B23D45/025 takes precedence
• CPC Class Codes: B27B 5/29 Details; Component parts; Accessories
• CPC Class Codes: Y10T 83/7697 Tool angularly adjustable relative to work-support
• CPC Class Codes: Y10T 83/7705 Adjustable angular relationship
• CPC Class Codes: Y10T 83/7726 By movement of the tool
• CPC Class Codes: Y10T 83/7788 Tool carrier oscillated or rotated
• CPC Class Codes: Y10T 83/8749 By pivotal motion
• CPC Class Codes: Y10T 83/8773 Bevel or miter cut

Abstract

A compound miter saw with an adjustable/bypassable bevel stop is disclosed. The compound miter saw includes a turntable rotatably mounted on a supporting frame. A power driven saw blade is pivotally mounted to the turntable and moves along a predetermined path from an upper raised to a lower operational position that includes a saw blade slot in the turntable. A bevel adjusting features selectively rotates the power driven saw blade relative to the turntable. The adjustable/bypassable bevel stop includes predetermined bevel stop settings at set angles, for example, such as 0° and 45°, as well as an over-riding feature when angles either less than or greater than the predetermined bevel stop settings are desired. The over-riding feature does not require re-adjustment of the predetermined bevel stop settings.

Claims

1. A compound miter saw comprising:

a supporting frame;

a turntable rotatably mounted on said supporting frame, said turntable including a saw blade slot extending through an upper planar surface and a fixed cylinder section mounted at one end of said turntable which extends generally transverse to the upper planar surface of said turntable;

a movable cylinder section rotatably mounted to said fixed cylinder section, said movable cylinder section pivotally mounting a power driven saw blade that moves along a predetermined path from an upper raised position to a lower operational position that includes the saw blade slot in said turntable;

bevel adjustment means for selectively rotatably moving said movable cylinder section relative to said fixed cylinder section in order to provide bevel adjustment of said power driven saw blade relative to said turntable; and

adjustable/bypassable bevel stop means for predetermined bevel stop settings as well as for over-riding such bevel stop settings when angles beyond the bevel stop settings are desired without re-adjusting said bevel stop means, the adjustable/bypassable bevel stop means including bevel stops mounted on said fixed cylinder section for engaging an index pin mounted on said movable cylinder section when the bevel adjustment means is operated for positioning the movable cylinder section between the bevel stop settings, said index pin being selectively movable into and out of engagement with said bevel stops for movement of the movable cylinder section beyond the bevel stop settings, the index pin being longitudinally movable between an engaged and disengaged position relative to the bevel stop in a direction generally transverse to the plane of movement of the movable cylinder section relative to the fixed cylinder section.

2. The compound miter saw as defined in claim 1 wherein the predetermined bevel stop settings are 0°

and 45°

.

3. The compound miter saw as defined in claim 1 wherein the index pin is movable to a position of disengagement relative to said bevel stops for bevel adjustment beyond the bevel stops and without re-adjustment of the bevel stops.

4. The compound miter saw as defined in claim 1 including a fastener for limiting the range of movement of the index pin from an engaged to non-engaged position and a friction engagement element tier engaging said index pin to hold the index pin in the desired engaged or non-engaged position.

5. The compound miter saw as defined in claim 1 wherein the movable cylinder section includes spaced and upwardly extending arms for pivotally mounting said power driven saw blade.

6. The compound miter saw as defined in claim 1 wherein said bevel adjustment means includes an adjusting knob extending through an arcuate slot in said movable cylinder section for cooperative threaded engagement with a complementary threaded nut formed in said fixed cylinder section.

7. A compound miter saw comprising:

a supporting frame;

a turntable rotatably mounted on said supporting frame and including a saw blade slot;

a power driven saw blade pivotally mounted on said turntable for movement in a first direction along a predetermined path from an upper raised position to a lower operational position that includes the saw blade slot in said turntable, said power driven saw blade also pivotally mounted on a movable cylinder section that rotates generally transversely to the rotatably mounted turntable, said movable cylinder section cooperating with a fixed cylinder that is mounted to said turntable;

miter adjustment means for selectively rotatably moving said turntable and power driven saw blade relative to said supporting frame in order to provide pre-set miter adjustment positions;

bevel adjustment means for selectively rotatably moving said power driven saw blade about said moving cylinder section in order to provide pre-set bevel adjustment positions; and

adjustable/bypassable bevel stop means for predetermined bevel stop settings as well as for over-riding such stop settings when bevel angles beyond the bevel stop settings are desired without re-adjusting said bevel stop means, the fixed cylinder section including bevel stops which are engaged by an index pin mounted on the movable cylinder section when the bevel adjustment means is operated, the index pin being selectively movable into and out of engagement with the bevel stops, the index pin being longitudinally movable between an engaged and non-engaged position relative to said bevel stops in a direction generally transverse to the plane of movement of the movable cylinder section relative to the fixed cylinder section.

8. The compound miter saw as defined in claim 7 wherein the predetermined bevel stop settings are 0°

and 45°

.

9. The compound miter saw as defined in claim 7 wherein the index pin is movable to a position of disengagement relative to said bevel stops for bevel adjustment beyond the bevel stops and without re-adjustment of the bevel stops.

10. The compound miter saw as defined in claim 7 and including a circumferential supporting surface provided on the movable cylinder section for the index pin.

11. The compound miter saw as defined in claim 10 and including a set screw extending through the circumferential supporting surface for location in a recessed area of the index pin between spaced shoulders for retaining the index pin while permitting longitudinal movement of the index pin between the spaced shoulders for engagement and non-engagement with the bevel stops, and an O-ring mounted about the index pin for frictional engagement with the circumferential supporting surface for holding the index pin in the desired engaged or non-engaged position relative to the bevel stops.