Woodworking – Workbench
Reexamination Certificate
2002-09-10
2004-11-30
Dexter, Clark F. (Department: 3724)
Woodworking
Workbench
C144S252100, C144S286500, C083S100000, C451S453000, C451S456000
Reexamination Certificate
active
06823907
ABSTRACT:
CROSS REFERENCE TO RELATED APPLICATION
This application claims priority of Taiwan Application No. 091207284, filed on May 21, 2002.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a work table, more particularly to a work table with a sawdust collecting mechanism.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional work table is shown to include a stand
1
, a workpiece-supporting box
2
, a working panel
3
, and a suctioning device
4
.
As illustrated, the box
2
includes a bottom plate
201
that is disposed on the stand
1
and that has a peripheral edge, and a peripheral wall
202
that extends uprightly from the peripheral edge of the bottom plate
201
to define a receiving chamber
203
. The bottom plate
201
is formed with an outlet port
204
.
The working panel
3
is disposed on the peripheral wall
202
to cover the receiving chamber
203
, and is formed with a plurality of equidistantly spaced apart apertures
303
that are in fluid communication with the receiving chamber
203
.
The suctioning device
4
includes an air conduit
403
, a blower unit
401
, and a container
407
. The air conduit
403
has a first end connected to the outlet port
204
of the box
2
and a second end connected to an inlet of the blower
401
. The container
407
is connected to an outlet of the blower
401
via a piping in such a manner that when the blower
401
is actuated, sawdust resulting from an abrasive operation performed on the working panel
3
is collected in the container
407
via the apertures
303
in the working panel
3
and the outlet port
204
of the bottom plate
201
. Preferably, an air-filtering bag
406
is mounted on a top end of the container
407
via a fastener belt
405
to enhance collection of the sawdust in the container
407
.
One disadvantage of the aforementioned conventional work table resides in that since there is no sawdust guiding means provided in the receiving chamber
203
for guiding the sawdust toward the outlet port
204
, the sawdust tends to accumulate at corners of the box
2
.
SUMMARY OF THE INVENTION
Therefore, an object of this invention is to provide a work table having a sawdust collecting mechanism so as to eliminate the aforesaid disadvantage.
Accordingly, a work table of the present invention includes: a stand; a workpiece-supporting box having a bottom plate disposed on the stand and having a peripheral edge, and a peripheral wall extending upwardly from the peripheral edge of the bottom plate to define a receiving chamber, the bottom plate being formed with an outlet port; a sawdust collecting mechanism including opposing left and right guide plates extending inclinedly and downwardly from the peripheral wall toward the outlet port, the left and right guide plates having opposing end walls distal from the peripheral wall and cooperating with the bottom plate to define a groove that is in fluid communication with the outlet port, the sawdust collecting mechanism further including a distributor member disposed on the groove, cooperating with the bottom plate to define a lower chamber in fluid communication with the outlet port, and cooperating with the left and right guide plates and the peripheral wall to define an upper chamber above the upper chamber, the distributor member being formed with a plurality of equidistantly spaced apart entrance holes that fluidly communicate the upper and lower chambers; a working panel disposed on the peripheral wall, covering the upper chamber, and formed with a plurality of uniformly spaced apart apertures that are in fluid communication with the upper chamber; and a suctioning device including an air conduit connected to the outlet port of the box, and a container connected to the air conduit so as to collect sawdust in the container via the apertures in the working panel, the upper and lower chambers, and the outlet port of the box upon actuation of the suctioning device.
REFERENCES:
patent: 3672292 (1972-06-01), Arnold
patent: 3882598 (1975-05-01), Earle et al.
patent: 4325292 (1982-04-01), McNinney et al.
patent: 4333745 (1982-06-01), Zeanwick
patent: 4408642 (1983-10-01), Jeruzal et al.
patent: 4932449 (1990-06-01), Omoto
patent: 5582225 (1996-12-01), Schank
patent: 5984990 (1999-11-01), McDonald
patent: 6557602 (2003-05-01), Sorensen et al.
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