U.S. patent application number 10/830388 was filed with the patent office on 2004-10-07 for slide miter saw.
Invention is credited to Ceroll, Warren A., Shull, Steven A., Wattenbach, Brian P..
Application Number | 20040194599 10/830388 |
Document ID | / |
Family ID | 30000123 |
Filed Date | 2004-10-07 |
United States Patent
Application |
20040194599 |
Kind Code |
A1 |
Shull, Steven A. ; et
al. |
October 7, 2004 |
Slide miter saw
Abstract
The miter saw includes a base, a table rotatably attached to the
base, a support housing connected to the table, at least one rail
slidably connected to the support housing, a saw assembly pivotally
attached to the at least one rail and movable between a front
position and a rear position, the saw assembly including a trunnion
disposed on the at least one rail, a pivot arm pivotally attached
to the trunnion, an upper blade guard connected to the pivot arm, a
motor attached to the upper blade guard, and a blade driven by the
motor, and a carrying handle provided on the at least one rail.
Inventors: |
Shull, Steven A.;
(Parkville, MD) ; Wattenbach, Brian P.; (Columbia,
MD) ; Ceroll, Warren A.; (Owings Mills, MD) |
Correspondence
Address: |
Black & Decker Inc.
TW-199
701 E. Joppa Road
Towson
MD
21286
US
|
Family ID: |
30000123 |
Appl. No.: |
10/830388 |
Filed: |
April 22, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
10830388 |
Apr 22, 2004 |
|
|
|
10205806 |
Jul 26, 2002 |
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Current U.S.
Class: |
83/471.3 ;
83/473; 83/581 |
Current CPC
Class: |
B25H 3/006 20130101;
Y10T 83/7705 20150401; Y10T 83/7784 20150401; Y10T 83/7788
20150401; Y10T 83/7772 20150401; Y10T 83/8773 20150401; B23D 45/024
20130101; Y10T 83/7697 20150401; Y10T 83/7726 20150401 |
Class at
Publication: |
083/471.3 ;
083/473; 083/581 |
International
Class: |
B27B 005/00; B26D
007/06 |
Claims
1: A miter saw comprising: a base; a table rotatably attached to
the base; at least one rail slidably connected to the table having
first and second ends, the at least one rail being slidable in a
first direction; a saw assembly pivotally attached to the at least
one rail and movable between a front position and a rear position,
the saw assembly comprising a trunnion disposed on the at least one
rail, a pivot arm pivotally attached to the trunnion, an upper
blade guard connected to the pivot arm, a motor attached to the
upper blade guard, and a blade driven by the motor, wherein an
angle of the blade relative to the table is changeable by rotating
the saw assembly about a substantantially horizontal axis which is
substantially parallel to the first direction; and a first carrying
handle provided on the at least one rail.
2: The miter saw of claim 1, wherein the first carrying handle
defines an opening.
3: The miter saw of claim 1, wherein the first carrying handle is
below the at least one rail.
4: The miter saw of claim 1, wherein the at least one rail is
press-fit unto the first carrying handle.
5: The miter saw of claim 1, wherein the miter saw is storable
within a carrying case.
6: The miter saw of claim 5, wherein the carrying case comprises a
container and a lid pivotably connected to the container.
7: The miter saw of claim 6, wherein the container has a
double-walled blow-molded construction.
8: The miter saw of claim 6, wherein the lid has a double-walled
blow-molded construction.
9: The miter saw of claim 5, wherein the carrying handle extends
beyond the carrying case.
10: The miter saw of claim 5, wherein the carrying case carries the
miter saw and another power tool.
11: The miter saw of claim 5, wherein the carrying case carries the
miter saw and another accessory.
12: The miter saw of claim 1, further comprising a second carrying
handle connected to at least one of the pivot arm and the upper
blade guard.
13-20 (canceled).
21: The miter saw of claim 1, further comprising a support housing
pivotally connected to the table.
22: The miter saw of claim 21, wherein the support housing pivots
about the substantially horizontal axis.
23: The miter saw of claim 21, wherein the angle of the blade
relative to the table is changeably by rotating the saw assembly,
the at least one rail, and the support housing about the
substantially horizontal axis.
24: The miter saw of claim 21, wherein the at least one rail is
slidably connected to the support housing.
Description
FIELD OF THE INVENTION
[0001] This invention relates generally to slide miter saws.
BACKGROUND OF THE INVENTION
[0002] Slide miter saws are well known in the art as they provide
extended cutting range over non-sliding miter saws. Like
non-sliding miter saws, the slide miter saws have a base, a
rotatable table attached to the base, a saw assembly including a
motor and a blade driven by the motor, where the saw assembly is
pivoted downwardly for cutting a workpiece disposed on the base and
table, and a sliding fence assembly connected to the base for
supporting a workpiece. However, slide miter saws enable the user
to move the saw assembly horizontally along the table.
[0003] Most slide miter saws accomplish this by connecting the saw
assembly to at least one rail, which is slidably attached to a
support housing connected to the table (see, e.g., U.S. Pat. No.
6,067,885). With such arrangement, the user would pull the saw
assembly forwardly, move the saw assembly downwardly, then push the
saw assembly rearwardly for cutting the workpiece.
[0004] While typical slide miter saws have handles on the saw
assembly for carrying, they still are unwieldy because of their
weight distribution. Thus, it is desirable to provide an improved
means for carrying a slide miter saw.
SUMMARY OF THE INVENTION
[0005] In accordance with the present invention, an improved miter
saw is employed. The miter saw includes a base, a table rotatably
attached to the base, a support housing connected to the table, at
least one rail slidably connected to the support housing, a saw
assembly pivotally attached to the at least one rail and movable
between a front position and a rear position, the saw assembly
comprising a trunnion disposed on the at least one rail, a pivot
arm pivotally attached to the trunnion, an upper blade guard
connected to the pivot arm, a motor attached to the upper blade
guard, and a blade driven by the motor, and a carrying handle
provided on the at least one rail.
[0006] Additional features and benefits of the present invention
are described, and will be apparent from, the accompanying drawings
and the detailed description below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0007] The accompanying drawings illustrate preferred embodiments
of the invention according to the practical application of the
principles thereof, and in which:
[0008] FIG. 1 is a side view of a slide miter saw according to the
invention;
[0009] FIG. 2 is a partial cross-sectional side view of the slide
miter saw of FIG. 1 in a carrying case; and
[0010] FIG. 3 is a partial cross-sectional view along line III-III
of FIG. 2.
DETAILED DESCRIPTION
[0011] The invention is now described with reference to the
accompanying figures, wherein like numerals designate like parts.
Referring to FIGS. 1-3, a slide miter saw 10 preferably has a base
11, a table 12 rotatably connected to the base 11, a support
housing 14 pivotally connected to table 12, at least one (and
preferably two) rail(s) 15 slidably connected to the support
housing 14, and a saw assembly which comprises a trunnion 16
attached to one end of the rail(s) 15, a pivot arm 17A pivotably
attached to trunnion 16, a motor 20, a blade 19 driven by the
motor, an upper blade guard 17 for covering an upper part of blade
19, and a lower blade 18 pivotally attached to the upper blade
guard 17 for covering a lower part of blade 19. Preferably the
motor 20 is attached to the upper blade guard 17. These elements
are well known in the art. Persons skilled in the art are referred
to U.S. Pat. No. 6,067,885, which is wholly incorporated by
reference herein.
[0012] A handle 21 may be provided on the housing covering motor 20
to allow the user to move the saw assembly downwardly for cutting a
workpiece. In addition, a carrying handle 22 may be provided on the
pivot arm 17A and/or upper blade guard 17 for carrying the miter
saw 10.
[0013] If more than one rail 15 is used, it is typical to connect
them with a connector 23. The rails 15 can be press-fit into
connector 23 or held in place by screws. It is preferable to shape
the connector to provide a handle portion 23H, preferably defining
an opening 23O, which allows the user to grasp the handle portion
23H. Preferably, the part of the handle portion 23H grasped by the
user is disposed below the rails 15. In addition, handle portion
23H may completely enclose opening 23O.
[0014] Providing such handle at the end of rails 15 enables the
user to carry the miter saw 10 in a substantially vertical
position, which is more manageable. Alternatively, it provides two
places for two persons to comfortably grasp the miter saw 10 for
carrying: handle 22 and handle portion 23H.
[0015] Referring to FIGS. 2-3, miter saw 10 may be disposed in a
carrying case 30. Preferably, carrying case 30 includes a container
31 and a lid 32. The lid 32 is pivotally interconnected with the
container 31 at a hinge 33 such that the lid 32 can pivot about an
axis of rotation relative to the container 31. When the lid 32 is
in its closed position, the carrying case 30 thus has a container
cavity 34 that is configured to contain, transport, and protect
miter saw 10. Persons skilled in the art will appreciate that
carrying case 30 may also carry other power tools, such as drill
41, circular saw 42, etc., or accessories, such as blades 43,
battery chargers 44, battery packs 44, etc., in addition to miter
saw 10.
[0016] Preferably, container 31 and lid 32 have as double-walled
blow molded construction. Both may be formed of a thermoplastic
material suitable for blow-molding, preferably polyethylene having
a room temperature elastic modulus of between about 80,000 and
260,000 psi at room temperature. Other suitable materials include
polypropylene, polystyrene, acrylonitrile-butadiene-styrene (ABS),
and copolymers thereof. Persons skilled in the art are referred to
U.S. Pat. No. 6,315,154, which is wholly incorporated herein by
reference, for more information.
[0017] Container 31 may have ribs 31R for delimiting the container
cavity 34 and/or locating miter saw 10, or the other power tools
and accessories.
[0018] Preferably, carrying case 30 will have an opening 35 on
container 31 and/or lid 32 for allowing handle 23H and/or rails 15
to extend therethrough. Accordingly, the user can use handle 23H
for carrying miter saw 10, as well as container case 30 and all the
other power tools and/or accessories disposed therein.
[0019] Persons skilled in the art may recognize other additions or
alternatives to the means disclosed herein. However, all these
additions and/or alterations are considered to be equivalents of
the present invention.
* * * * *