CA2540229A1 - Saw guide - Google Patents
Saw guide Download PDFInfo
- Publication number
- CA2540229A1 CA2540229A1 CA 2540229 CA2540229A CA2540229A1 CA 2540229 A1 CA2540229 A1 CA 2540229A1 CA 2540229 CA2540229 CA 2540229 CA 2540229 A CA2540229 A CA 2540229A CA 2540229 A1 CA2540229 A1 CA 2540229A1
- Authority
- CA
- Canada
- Prior art keywords
- circular saw
- guide
- guide device
- plywood
- flat plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B9/00—Portable power-driven circular saws for manual operation
- B27B9/04—Guiding equipment, e.g. for cutting panels
Abstract
A guide device for circular saw, which includes a longitudinally extending elongated flat plate which is provided for mounting a square and a guide rail, of which a guide roller secured to the base plate of the circular saw slides thereon for longitudinal movement therealong.
Description
SAW GUIDE
BACKGROUND OF THE INVENTION
Technical Field This invention relates to handheld circular saws, and more particularly to a guide device designed for incorporation with such a handheld circular saw.
Background Art It has long been necessary to trim sheets of building materials, for example the standard 4' times 8' sheet of plywood, wood paneling or gypsum wallboard, to a precise width, for carpenters working on the job, the handheld circular saw is the tool of choice for such a trimming operation, to provide a precise straight edge at the cut or trimmed location.
A search of prior art records has unveiled the following patents:
1. US 6,757,981 issued in 2004 to Hampton;
BACKGROUND OF THE INVENTION
Technical Field This invention relates to handheld circular saws, and more particularly to a guide device designed for incorporation with such a handheld circular saw.
Background Art It has long been necessary to trim sheets of building materials, for example the standard 4' times 8' sheet of plywood, wood paneling or gypsum wallboard, to a precise width, for carpenters working on the job, the handheld circular saw is the tool of choice for such a trimming operation, to provide a precise straight edge at the cut or trimmed location.
A search of prior art records has unveiled the following patents:
1. US 6,757,981 issued in 2004 to Hampton;
2. US 6,708,422 issued in 2004 to Stojanovski;
3. US 5,365,822 issued in 1994 to Stapleton et al.;
4. US 4,453,438 issued in 1984 to Zelli; and 5. CA 1,186,597 issued in 1985 to Jensen.
Although of each of the foregoing has had particular advantages, so no one saw guide is capable of economical construction while yet being universally suited to precisely trim a large range of materials.
Accordingly, improved constructions for a guide device for a handheld circular saw.
SUMMARY OF THE INVENTION
The invention provides a particularly guide device for handheld circular saw which is capable to make precise and straight cuts in sheets of paneling plywood and wallboard at a desired angle relative to the edge of the material, and which saves the user immeasurable time in a situation where there is a desire to make repetitive cuts of a precise nature.
Such handheld circular saws incorporate an electric motor disposed within a housing which rotates a shaft to which the circular saw blade is attached, with the housing being adjustably supported on a flat surface which rests against the flat surface of the sheet of paneling plywood being trimmed.
The guide device includes a longitudinally extending elongated flat plate which is provided for mounting a square and a guide rail, of which a guide roller secured to the base plate of the circular saw slides thereon for longitudinal movement therealong.
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings throughout the drawings like reference numerals refer to like parts.
BRIEF DESCRIPTION OF THE DRAWINGS
This invention will be further explained with reference to the accompanying drawings, wherein:
FIG. 1 is a rear perspective view of a guide device in accordance with the present invention, and used with circular saw;
FIG. 2 is a front perspective view thereof.
FIGS. 3a, 3b show the functioning of the guide device in accordance with the present invention, as mounted to a sheet of plywood and used with circular saw;
FIG. 4 is an elevation view of the guide device in accordance with the present invention, and used with circular saw;
FIG. 5 is an exploded view of the guide device in accordance with the present invention; and FIG. 6 is an exploded view of guide roller shown in FIG. 2.
NUMERICAL REFERENCES OF THE ILLUSTRATED ELEMENTS:
A = Guide roller B = Circular saw C = Flat elongated plate D = Extension E = Square F = Sheet of material 1, 2 = T-shaped member 3 = Holes 4 = Apertures = Rollers 6 = Rivets 7 = Washers 8 = Nuts BEST MODE FOR CARRYING OUT THE INVENTION
As illustrated in FIG. 3a, the handheld circular saw B with the guide device installed is then positioned upon the upper surface of a sheet of plywood F
to be cut or trimmed.
The operator will be begin at one end edge of the sheet of plywood with the guide device resting flat upon the upper surface of the sheet of plywood and aligned so that to be flushed against the edge of the sheet of plywood.
Thereafter when the operator actuates the trigger and slowly moves the circular saw B along the length of the sheet of plywood F, maintaining the guide device flush against the edge of the sheet of plywood a precise and straight kerf is cut as illustrated in FIGS. 1, 2 and 3b.
As illustrated in FIGS, 5 to 6, the guide device includes a longitudinally elongated flat plate C having an extension D clipped therewith, which is provided for mounting a square E and a guide rail, of which a guide roller A secured to the base plate of the circular saw B slides thereon for longitudinal movement therealong.
As illustrated in FIG. 6 the guide roller A preferably includes a T-shaped member (1)(2) which is fixed to two rollers 5 by means of rivets 6 that extend through washers 7, apertures 4, holes 3, and connected thereby nuts 8, and of which may be locked to the base plate of the circular saw in any suitable manner.
As can be seen, the guide roller A can be quickly and easily installed to a circular saw B, and slidably movable along the longitudinal lenght of the flat plate with square E for cutting a sheet of material F to a precise width desired.
The guide rail has a depth that is just slightly deeper than the thickness of the flat plate so as to fit in surrounding relationship about the profile of the flat plate.
It is feasible to construct the guide device so as to permit the cutting of sheet workpieces to predetermined widths up to about 12 inches.
Accordingly, while the preferred embodiments of the invention have been described above, it will be recognized and understood that various modifications may be made in the invention and the appended claims are intended to cover all such modifications which fall within the spirit and scope of the invention.
Although of each of the foregoing has had particular advantages, so no one saw guide is capable of economical construction while yet being universally suited to precisely trim a large range of materials.
Accordingly, improved constructions for a guide device for a handheld circular saw.
SUMMARY OF THE INVENTION
The invention provides a particularly guide device for handheld circular saw which is capable to make precise and straight cuts in sheets of paneling plywood and wallboard at a desired angle relative to the edge of the material, and which saves the user immeasurable time in a situation where there is a desire to make repetitive cuts of a precise nature.
Such handheld circular saws incorporate an electric motor disposed within a housing which rotates a shaft to which the circular saw blade is attached, with the housing being adjustably supported on a flat surface which rests against the flat surface of the sheet of paneling plywood being trimmed.
The guide device includes a longitudinally extending elongated flat plate which is provided for mounting a square and a guide rail, of which a guide roller secured to the base plate of the circular saw slides thereon for longitudinal movement therealong.
Other objects and advantages of the invention will become apparent upon reading the following detailed description and upon reference to the drawings throughout the drawings like reference numerals refer to like parts.
BRIEF DESCRIPTION OF THE DRAWINGS
This invention will be further explained with reference to the accompanying drawings, wherein:
FIG. 1 is a rear perspective view of a guide device in accordance with the present invention, and used with circular saw;
FIG. 2 is a front perspective view thereof.
FIGS. 3a, 3b show the functioning of the guide device in accordance with the present invention, as mounted to a sheet of plywood and used with circular saw;
FIG. 4 is an elevation view of the guide device in accordance with the present invention, and used with circular saw;
FIG. 5 is an exploded view of the guide device in accordance with the present invention; and FIG. 6 is an exploded view of guide roller shown in FIG. 2.
NUMERICAL REFERENCES OF THE ILLUSTRATED ELEMENTS:
A = Guide roller B = Circular saw C = Flat elongated plate D = Extension E = Square F = Sheet of material 1, 2 = T-shaped member 3 = Holes 4 = Apertures = Rollers 6 = Rivets 7 = Washers 8 = Nuts BEST MODE FOR CARRYING OUT THE INVENTION
As illustrated in FIG. 3a, the handheld circular saw B with the guide device installed is then positioned upon the upper surface of a sheet of plywood F
to be cut or trimmed.
The operator will be begin at one end edge of the sheet of plywood with the guide device resting flat upon the upper surface of the sheet of plywood and aligned so that to be flushed against the edge of the sheet of plywood.
Thereafter when the operator actuates the trigger and slowly moves the circular saw B along the length of the sheet of plywood F, maintaining the guide device flush against the edge of the sheet of plywood a precise and straight kerf is cut as illustrated in FIGS. 1, 2 and 3b.
As illustrated in FIGS, 5 to 6, the guide device includes a longitudinally elongated flat plate C having an extension D clipped therewith, which is provided for mounting a square E and a guide rail, of which a guide roller A secured to the base plate of the circular saw B slides thereon for longitudinal movement therealong.
As illustrated in FIG. 6 the guide roller A preferably includes a T-shaped member (1)(2) which is fixed to two rollers 5 by means of rivets 6 that extend through washers 7, apertures 4, holes 3, and connected thereby nuts 8, and of which may be locked to the base plate of the circular saw in any suitable manner.
As can be seen, the guide roller A can be quickly and easily installed to a circular saw B, and slidably movable along the longitudinal lenght of the flat plate with square E for cutting a sheet of material F to a precise width desired.
The guide rail has a depth that is just slightly deeper than the thickness of the flat plate so as to fit in surrounding relationship about the profile of the flat plate.
It is feasible to construct the guide device so as to permit the cutting of sheet workpieces to predetermined widths up to about 12 inches.
Accordingly, while the preferred embodiments of the invention have been described above, it will be recognized and understood that various modifications may be made in the invention and the appended claims are intended to cover all such modifications which fall within the spirit and scope of the invention.
Claims
I claim:
1. A guide device for circular saw, the guide device comprising:
an elongated flat plate which is provided for mounting a square and a guide rail;
- means for clipping extension to said flat plate;
- means for making precise and straight cuts in sheets of paneling plywood and wallboard at a desired angle relative to the edge of the material; and - means for guiding and cutting in straight line, which including:
a guide roller secured to the base plate of a circular saw of which slides thereon said guide rail for longitudinal movement therealong.
an elongated flat plate which is provided for mounting a square and a guide rail;
- means for clipping extension to said flat plate;
- means for making precise and straight cuts in sheets of paneling plywood and wallboard at a desired angle relative to the edge of the material; and - means for guiding and cutting in straight line, which including:
a guide roller secured to the base plate of a circular saw of which slides thereon said guide rail for longitudinal movement therealong.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2540229 CA2540229A1 (en) | 2006-03-15 | 2006-03-15 | Saw guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2540229 CA2540229A1 (en) | 2006-03-15 | 2006-03-15 | Saw guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2540229A1 true CA2540229A1 (en) | 2007-09-15 |
Family
ID=38481172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2540229 Abandoned CA2540229A1 (en) | 2006-03-15 | 2006-03-15 | Saw guide |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2540229A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4292741A1 (en) * | 2022-05-24 | 2023-12-20 | Black & Decker Inc. | Power tool guide and power tool guide assembly |
-
2006
- 2006-03-15 CA CA 2540229 patent/CA2540229A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4292741A1 (en) * | 2022-05-24 | 2023-12-20 | Black & Decker Inc. | Power tool guide and power tool guide assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |