Cutter with optical alignment system

• US 7,926,398 B2
• Filed: 01/11/2005
• Issued: 04/19/2011
• Est. Priority Date: 06/19/2002
• Status: Expired due to Fees

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Garcia, Jaime E., Weston, Jeffrey D., Jenkins, Joseph L. Jr.
• Primary Examiner(s): Dexter; Clark F.
• Application Number:
  US11/033,502
• Publication Number:
  US 20050126356A1
• Time in Patent Office: 2,289 Days
• Field of Search: 835/20, 835/21, 835/221.3, 835/221.5, 833/97, 834/712, 834/713, 834/771, 834/78, 834/861, 834/90, 835/221.6, 835/81, 362/89, 362/259, 362/287, 362/289, 301/23, 303/88, 303/90, 303/91, 332/86, 33D/IG.1
• US Class Current: 83/520
• CPC Class Codes: B23D 59/003 Indicating the cutting plane on the workpiece, e.g. by projecting a laser beam
• CPC Class Codes: B23Q 17/2404 Arrangements for improving direct observation of the working space, e.g. using mirrors or lamps structural combinations of lighting devices with other articles, not otherwise provided for, F21V33/00
• CPC Class Codes: Y10T 83/04 Processes
• CPC Class Codes: Y10T 83/7688 Plural tool elements successively actuated at same station
• CPC Class Codes: Y10T 83/7726 By movement of the tool
• CPC Class Codes: Y10T 83/773 Work-support includes passageway for tool [e.g., slotted table]
• CPC Class Codes: Y10T 83/7788 Tool carrier oscillated or rotated
• CPC Class Codes: Y10T 83/828 With illuminating or viewing means for work
• CPC Class Codes: Y10T 83/839 Mirror or lens
• CPC Class Codes: Y10T 83/853 Indicates tool position

Abstract

An optical system mounted on a cutter that has a base and a housing supporting a blade. In one embodiment, the optical system may project first and second indicator lines on the base. The optical system may also include a mechanism selectively operable to adjust the first and second lines to indicate the width of the blade.

Claims

1. A cutter comprising:

a base;

a housing movably mounted on the base and supporting a rotatable saw blade, the blade having first and second lateral sides, wherein the blade is rotatable about a rotation axis that is substantially perpendicular to said lateral sides, and wherein said blade is movable with the housing in a direction substantially perpendicular to the rotation axis for cutting; and

an optical system comprising a first laser generator adjustably supported on the housing for movement with the housing and a second laser generator adjustably supported on the housing for movement with the housing, wherein said first laser generator adjustably projects a first indicator line and said second laser generator adjustably projects a second indicator line apart from the first indicator line such that said first and second indicator lines cooperate to indicate the width of the blade.

2. The cutter of claim 1, wherein said first laser generator is mounted on a first holder supported on said housing and said second laser generator is mounted on a second holder supported on said housing.

3. The cutter of claim 2, wherein said first laser generator is disposed within said first holder at positions that are laterally offset from the first lateral side of the blade and wherein said second laser generator is disposed within said second holder at positions that are laterally offset from the second lateral side of the blade.

4. The cutter of claim 3, further comprising an adjustment mechanism operably coupled to said housing and said first holder, wherein said adjustment mechanism is selectively operable to laterally displace the first holder on said housing such that the first indicator line generated by said first laser generator is displaced laterally relative to the blade.

5. The cutter of claim 4, wherein said first holder supports a first micro-adjuster that is selectively operable to move said first laser generator within said first holder such that the first indicator line is laterally displaced relative to the first lateral side of the blade.

6. The cutter of claim 5, wherein said first micro-adjuster comprises:

a first sleeve cantilevered from said first holder and supportingly receiving said first laser generator therein; and

a first micro-actuator adjustably supported in said first holder and selectively operable to deflect the first sleeve relative to said first holder.

7. The cutter of claim 6, wherein the first sleeve is biased in a predetermined direction against said first holder.

8. The cutter of claim 3, further comprising an adjustment mechanism operably coupled to said housing and said second holder, wherein said adjustment mechanism is selectively operable to laterally displace the second holder on said housing such that the second indicator line generated by said second laser generator is displaced laterally relative to the blade.

9. The cutter of claim 8, wherein said second holder supports a second micro-adjuster that is selectively operable to move said second laser generator within said second holder such that the second indicator line is laterally displaced relative to the second lateral side of the blade.

10. The cutter of claim 9, wherein said second micro-adjuster comprises:

a second sleeve cantilevered from said second holder and supportingly receiving said second laser generator therein; and

a second micro-actuator adjustably supported in said second holder and selectively operable to deflect the second sleeve relative to said second holder.

11. The cutter of claim 10, wherein the second sleeve is biased in a predetermined direction against said second holder.

12. The cutter of claim 2, further including an adjustment mechanism operably coupled to the first laser generator, wherein the adjustment mechanism is configured to selectively rotate the first indicator line relative to the first lateral side of the blade.

13. The cutter of claim 12, further including a first frictional insert supported in said first holder and in frictional contact with said first laser generator.

14. The cutter of claim 2, further including an adjustment mechanism operably coupled to the second laser generator, wherein the adjustment mechanism is configured to selectively rotate the second indicator line relative to the second lateral side of the blade.

15. The cutter of claim 14, further including a second frictional insert supported in said second holder and in frictional contact with said second laser generator.

16. A cutter comprising:

a base;

a housing movably positioned on the base and supporting a saw blade, the blade having first and second lateral sides defining a width, said first lateral side defining a first plane and said second lateral side defining a second plane, wherein the blade is rotatable about a rotation axis that is substantially perpendicular to said lateral sides, and wherein said blade is movable with the housing in a direction substantially perpendicular to the rotation axis for cutting; and

an optical system adjustably supported on the housing for movement with the housing, the optical system having first and second laser emitters for adjustably projecting first and second indicator lines positioned apart from one another, the optical system including an adjustment mechanism connected to one of said first and second laser emitters, the adjustment mechanism being operable to adjust the corresponding one of said first and second indicator lines to indicate the boundary of said first plane or the boundary of said second plane.

17. The cutter of claim 16, wherein the other of said indicator lines is projected such that the distance between said first and second indicator lines is less than the width of the blade.

18. The cutter of claim 16, wherein the other of said indicator lines is partially obscured by the blade.

19. The cutter of claim 16, wherein the other of said indicator lines is projected such that the distance between said first and second indicator lines is greater than the width of the blade.

20. The cutter of claim 16, wherein the other of said indicator lines is projected such that the distance between said first and second indicator lines is equal to the width of the blade.