Base with beveled lateral side surface

Patent metadata

Field	Value
Publication number	US-9527143-B2
Application number	US-201113250797-A
Country	US
Kind code	B2
Filing date	Sep 30, 2011
Priority date	Sep 30, 2011
Publication date	Dec 27, 2016
Grant date	Dec 27, 2016

Abstract

A saw and guide apparatus includes a saw assembly and a cutting guide. The saw assembly includes (i) a drive member configured to be moved in a repeating pattern, (ii) a motor configured to move the drive member in the repeating pattern, (iii) a housing defining an interior space in which the motor is positioned, (iv) a foot including a base defining a cutting member opening therein, the base further defining a lower base surface, (v) a cutting member secured to the drive member so that the cutting member extends through the cutting member opening, and (vi) a guard attached to the housing and defining a cutting wheel space in which the cutting wheel is at least partially positioned. The cutting guide includes (i) a first saw support defining a first saw contact surface and a first workpiece contact surface, and (ii) a second saw support defining a second saw contact surface and a second workpiece contact surface, the first workpiece contact surface being spaced apart from the second workpiece contact surface so as to define a window therebetween. The foot is configured such that, if the following conditions exist: (i) the lower base surface is positioned in contact with the first saw contact surface, and (ii) the guard is positioned in contact with the second saw contact surface, then the cutting member extends through the window and the base is spaced apart from the window.

First claim

What is claimed is:

1. A saw and guide apparatus, comprising:
a cutting guide including (i) a first saw support defining a first saw contact surface and a first workpiece contact surface, and (ii) a second saw support defining a second saw contact surface and a second workpiece contact surface, said first workpiece contact surface being spaced apart from said second workpiece contact surface so as to define a window therebetween; and
a saw assembly including (i) a drive member configured to be moved in a repeating pattern, (ii) a motor configured to move said drive member in said repeating pattern, (iii) a housing defining an interior space in which said motor is positioned, (iv) a foot including a base defining a cutting member opening therein, said base further defining a lower base surface configured to contact said first saw contact surface, (v) a cutting member secured to said drive member so that said cutting member extends through said cutting member opening, and (vi) a guard attached to said housing and defining a cutting member space in which said cutting member is at least partially positioned, and said guard including a guard wall surface that is non-coplanar with said lower base surface and is configured to contact said second saw contact surface,
wherein said foot and said guard are configured such that when (i) said lower base surface is positioned in contact with said first saw contact surface, and (ii) said guard wall surface is positioned in contact with said second saw contact surface, then said cutting member extends through said window and said base and said guard are prevented from extending through said window,
wherein said base defines a main portion, a first cantilevered portion extending laterally from said main portion, and a second cantilevered portion extending laterally from said main portion, each of said main portion, said first cantilevered portion, and said second cantilevered portion at least partially defining said lower base surface,
wherein said base further defines an upper base surface and a lateral sidewall surface extending between said lower base surface and said upper base surface,
wherein at least a portion of said lateral sidewall surface is beveled with respect to said lower base surface,
wherein said base further defines a longitudinal axis extending in a cutting direction of the saw assembly,
wherein said first cantilevered portion terminates so as to define a first part of said lateral sidewall surface,
wherein said second cantilevered portion terminates so as to define a second part of said lateral sidewall surface, and
wherein said first cantilevered portion and said second cantilevered portion are spaced apart from each other along said longitudinal axis so as to define said cutting member opening therebetween.

2. The saw and guide apparatus of claim 1 , wherein:
when said base is viewed in a cross sectional view, said lower base surface and said portion of said lateral sidewall surface define an angle having a magnitude equal to Θ, and
120°<Θ<150°.

3. The saw and guide apparatus of claim 2 , wherein Θ is approximately equal to 135°.

4. The saw and guide apparatus of claim 1 , wherein:
said first part of said lateral sidewall surface is beveled with respect to said lower base surface and is configured to contact said second saw contact surface, and
said second part of said lateral sidewall surface is beveled with respect to said lower base surface and is configured to contact said second saw contact surface.

5. The saw and guide apparatus of claim 4 , wherein:
when said base is viewed in a first cross sectional view, said lower base surface and said first part of said lateral sidewall surface define a first angle having a magnitude equal to Θ1,
when said base is viewed in a second cross sectional view, said lower base surface and said second part of said lateral sidewall surface define a second angle having a magnitude equal to Θ2,
120°<Θ1<150°, and
120°<Θ2<150°.

6. The saw and guide apparatus of claim 5 , wherein (i) Θ1 is approximately equal to 135°, and (ii) Θ2 is approximately equal to 135°.

7. The saw and guide apparatus of claim 1 , wherein:
said first saw support includes (i) a first step structure extending from said first saw contact surface and said second saw contact surface and defining a first base contact surface at one end of said window, and (ii) a second step structure extending from said first saw contact surface and said second saw contact surface and defining a second base contact surface at an opposite end of said window,
said first saw contact surface is interposed between said first step structure and said second step structure,
said base further defines (i) a leading sidewall surface extending between said lower base surface and said upper base surface, and (ii) a trailing sidewall surface extending between said lower base surface and said upper base surface,
said first step structure is configured and arranged to stop forward movement of said saw assembly due to interaction of said leading sidewall surface with said first base contact surface of said first step structure when said saw assembly is being advanced in a first direction while said lower base surface is positioned in contact with only said first saw contact surface and said guard wall surface is positioned in contact with only said second saw contact surface, and
said second step structure is configured and arranged to stop rearward movement of said saw assembly due to interaction of said trailing sidewall surface with said second base contact surface of said second step structure when said saw assembly is being advanced in an opposite second direction while said lower base surface is positioned in contact with only said first saw contact surface and said guard wall surface is positioned in contact with only said second saw contact surface.

8. The saw and guide apparatus of claim 1 , wherein:
said guard wall surface includes a lateral guard wall surface and a lower guard wall surface, and
at least a portion of said lateral guard wall surface is beveled with respect to said lower guard wall surface.

9. The saw and guide apparatus of claim 1 , wherein said cutting member includes a cutting wheel.

Assignees

• Moreno Jaime
• Bosch Tool Corp
• Bosch Gmbh Robert

Inventors

• Moreno Jaime

Classifications

• B23Q9/0042

  the guide means being fixed only on the workpiece · CPC title

• Y10T83/8878

  Guide · CPC title

• Y10T83/68

  Entirely work supported · CPC title

• B23Q9/0028

  the guide means being fixed only on the machine · CPC title

• Y10T83/8763

  Convertible from tool path to another or from implement to machine · CPC title