Saw tool

• US 7,516,550 B2
• Filed: 06/13/2005
• Issued: 04/14/2009
• Est. Priority Date: 06/13/2005
• Status: Active Grant

• Current Assignee: Greenlee Tools, Inc. (Emerson Electric Company)
• Original Assignee: Textron Innovations Incorporated (Textron Inc)
• Inventors: Kroening, John W., Axon, Ronald G., Hagan, John T.
• Primary Examiner(s): RACHUBA, MAURINA T
• Application Number:
  US11/151,554
• Publication Number:
  US 20060277761A1
• Time in Patent Office: 1,401 Days
• Field of Search: 30/62, 301/62
• US Class Current: 30/162
• CPC Class Codes: B23D 51/01 characterised by the handle
• CPC Class Codes: B23D 51/10 for hand-held or hand-operated devices

Abstract

A tool is provided into which a saw blade can be mounted and removed therefrom. The tool includes a housing have a groove therein. An attachment assembly is mounted in the groove and can be slid within the groove. The attachment assembly includes a first part, a second part, and a member attaching the parts together, while allowing the parts to move relative to each other. The saw blade is inserted between the first and second parts and is removable therefrom. A spring retainer is affixed within the housing. The attachment assembly is moveable within the housing to abut against the spring retainer. When the attachment assembly abuts the spring retainer, the second parts can be moved out of engagement with each other to allow the removal of the saw blade from therebetween.

Claims

1. A tool into which a saw blade can be mounted and removed therefrom, said tool comprising:

a housing, said housing have a groove defined therein;

an attachment assembly mounted in said groove in said housing, said attachment assembly being capable of sliding within said groove relative to said housing, said attachment assembly including a first part, a second part, and a member attaching said second part to said first part while allowing said second part to move relative to said first part, wherein the saw blade can be inserted between said first and second parts so that the saw blade is sandwiched between said first and second parts, the saw blade being removable therefrom; and

a spring retainer affixed within said housing, said spring retainer capable of being in an undeflected condition and a deflected condition, said attachment assembly being moveable within said housing to abut against said spring retainer, wherein when said attachment assembly abuts said spring retainer, said second part can be moved out of engagement with said first part to allow the removal of the saw blade from between the first and second parts, said second part engaging against said spring retainer and moving said spring retainer into said deflected condition when said second part is moved out of engagement with said first part.

2. A tool as defined in claim 1, wherein said spring retainer includes a leg attached to said housing, but deflectable relative thereto) and an arcuate arm attached to said leg, said second part of said attachment assembly being engageable against said arcuate arm.

3. A tool as defined in claim 2, wherein said leg of said, spring retainer is vertical and said spring retainer further includes a horizontal leg attached thereto and attached to said housing, said attachment assembly sitting on said horizontal leg when said attachment assembly abuts said spring retainer.

4. A tool as defined in claim 1, wherein said member extends outwardly from said housing and said second part of said attachment assembly is moved out of engagement with said first part by a user pushing said member.

5. A tool as defined in claim 1, wherein said member includes a threaded portion and further including a knob mounted on said threaded portion, said knob being translatable on said threaded portion such that said knob can be engaged with said housing or disengaged from said housing.

6. A tool as defined in claim 1, wherein said second part of said attachment assembly has a protrusion provided therein and said first part of said attachment assembly includes a recess into which said protrusion is insertable and releasable therefrom when said second part of said attachment assembly is moved out of engagement with said first part.

7. A tool as defined in claim 6, wherein said protrusion has a tapered surface thereon.

8. A tool as defined in claim 7, wherein said first and second parts have chamfers provided thereon on the end through which the saw blade is to be inserted.

9. A tool as defined in claim 1, wherein said second part is an insert mounted within an aperture in said first part.

10. A tool as defined in claim 9, wherein said second part of said attachment assembly has a protrusion provided therein and said first part of said attachment assembly includes a recess into which said protrusion is insertable and releasable therefrom when said second part of said attachment assembly is moved out of engagement with said first part.

11. A tool as defined in claim 1, wherein said housing includes a lower housing and an upper housing which are mated together, one of said lower and upper housing have ribs provided thereon which mate into pockets provided in the other of said lower and upper housings.

12. A tool as defined in claim 1, wherein said spring retainer is formed of spring steel.

13. A tool as defined in claim 1, further including a blade holder attached to said housing.

14. A tool as defined in claim 13, wherein said blade holder includes a latch releasably engaged with said housing.

15. A tool as defined in claim 14, wherein said latch includes an arm and a hook at a free end of said arm, said housing including a cam surface and a pocket adjacent said cam surface, said hook being engageable with said cam surface and said pocket.

16. A tool into which a saw blade can be mounted and removed therefrom, said tool comprising:

a housing, said housing have a groove defined therein;

an attachment assembly mounted in said groove in said housing, said attachment assembly being capable of sliding within said groove relative to said housing, said attachment assembly including a first part, a second part insertable into an aperture in said first part, and a member attaching said second part to said first part while allowing said second part to move relative to said first part, the saw blade being insertable between said first and second parts and removed therefrom, said second part having a protrusion provided thereon and said first part including a recess into which said protrusion is insertable and releasable therefrom, and said member including a threaded portion, said member extending outwardly from said housing;

a knob mounted on said threaded portion of said member and translatable thereon such that said knob can be engaged with said housing or disengaged from said housing;

a spring retainer affixed within said housing, said spring retainer including a vertical leg attached to said housing, but deflectable relative thereto, and an arcuate arm attached to said leg and a horizontal leg attached thereto and attached to said housing, said attachment assembly being moveable within said housing to abut against said vertical leg and said arcuate arm and to sit on said horizontal leg,

wherein when said attachment assembly abuts said vertical leg, said second part can be moved out of engagement with said first part by a user pushing on said member to allow the removal of the saw blade from between the first and second parts.

17. A tool as defined in claim 16, wherein said protrusion has a tapered surface thereon and said first and second parts have chamfers provided thereon on the end through which the saw blade is to be inserted.

18. A tool as defined in claim 16, further including a blade holder attached to said housing.