Note: Descriptions are shown in the official language in which they were submitted.
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SANDER DEVICE
The invention relates to a belt sander device including a
sanding belt adjustable between a horizontal position and a vertical
position, and a feeding table for supporting and/or feeding the work
pieces through the sanding belt when the sanding belt is either in the
horizontal position or in the vertical position.
Typical belt sander devices comprise a sanding belt entrained
around a driven roller and an idle roller, and a driving motor
coupled to the driven roller for rotating or driving the sanding belt
to sand or to grind the work pieces.
For example, U.S. Patent No. 6,089,958 to Costa et al.
discloses one of the typical belt sanders with orbitally translated
abrasive belt and also comprising a driving motor coupled to a
driven roller for rotating or driving a sanding belt to sand or to grind
the work pieces, and a pair of eccentric shafts for driving and
adjusting or imparting translational orbital movement to a sanding
head, and a feed belt for supporting the work pieces and for feeding
the work pieces through the sanding belt.
However, the sanding belt may not be adjusted between a
horizontal position and a vertical position, in addition, the feed belt
may not be used to support and to feed the work pieces through the
sanding belt when the sanding belt is either in the horizontal
position or in the vertical position.
U.S. Patent No. 6,533,649 to Wang discloses another typical
belt sander assemblies having sander member and comprising a
frame pivotally or rotatably attached to a supporting base for
adjustably supporting a sander belt, and a platform for supporting
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the work pieces.
However, the platform may only be used for supporting the
work pieces but may not be used for feeding the work pieces
through the sander belt. The users have to move the work pieces
through the sander belt by themselves. In addition, when the sander
belt is rotated and adjusted to a horizontal position, the platform
may no longer be useful for supporting the work pieces.
U.S. Patent No. 6,854,401 to Lin discloses a typical working
table having a stable support for supporting the work pieces, and
having a table movable up and down by a rack.
However, the table may not be used for supporting the work
pieces when the sander belt is rotated and adjusted between a
horizontal position and a vertical position.
It is accordingly an object of the invention to provide a sander
device including a sanding belt adjustable between a horizontal
position and a vertical position, and a feeding table for supporting
and/or feeding the work pieces through the sanding belt when the
sanding belt is either in the horizontal position or in the vertical
position.
SUMMARY OF THE INVENTION
According to the invention there is provided a sander device
comprising:-
a supporting base,
a housing pivotally attached to the supporting base and
rotatable relative to the supporting base between a horizontal
position and a vertical position,
a driven roller and an idle roller rotatably disposed in the
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housing, and an endless driving belt engaged over the driven roller
and the idle roller, and a driving motor coupled to the driven roller
for rotating and driving the sanding belt to sand a work piece, the
driving belt also rotatable relative to the supporting base between
the horizontal position and the vertical position together with the
housing,
a table for supporting the work piece, and
a moving device for moving and supporting the table and the
work piece relative to the sanding belt and the supporting base when
the driving belt is located at either the horizontal position or the
vertical position.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a partial exploded view of a sander device;
FIG. 2 is a perspective view of the sander device;
FIG. 3 is a side plan schematic view of the sander device;
FIG. 4 is an enlarged partial perspective view of the sander
device;
FIG. 5 is an enlarged partial plan schematic view illustrating
the operation of the sander device;
FIG. 6 is a top plan schematic view of the sander device;
FIG. 7 is a partial front plan schematic view of the sander
device;
FIG. 8 is a partial front plan schematic view similar to FIG. 7,
illustrating the operation of the sander device;
FIGS. 9, 10 are partial side plan schematic views illustrating
the sanding operation of the sander device;
FIGS. 11, 12 are partial front plan schematic views illustrating
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the operation of the hood for the sander device;
FIGS. 13, 14 are partial side plan schematic views similar to
FIGS. 9 and 10 illustrating the folding or rotating operation of the
sander device;
FIGS. 15, 16 are partial side plan schematic views similar to
FIGS. 13 and 14 illustrating the operation of a shield for the sander
device; and
FIG. 17 is a partial front plan schematic view illustrating the
sanding operation of the sander device when the sanding belt is
rotated or adjusted to a vertical position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIGS. 1-5, a sander device 1 comprises a
supporting base 10 including two casings 11, 12 attached to the
opposite side portions of the supporting base 10 for supporting a
moving or adjusting means or device 20. The adjusting means or
device 20 includes two gears or pulleys or sprockets 22 rotatably
attached to the upper portion and the lower portion of each of the
casings 11, 12 respectively and a chain 21 engaged over or around
the sprockets 22 of each of the casings 11, 12, and a link 23 coupled
between the two lower sprockets 22 that are attached to the lower
portions of the casings 11, 12 for coupling the chains 21 together
and for allowing the chains 21 to be moved in concert with each
other.
The adjusting means or device 20 further includes a follower
24 attached or coupled to the chain 21 of each of the casings 11, 12,
and arranged for allowing the followers 24 to be slidably attached to
and movable up and down along the casings 11, 12 or relative to the
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supporting base 10 by the chains 21. A hand wheel 13 is rotatably
attached to the supporting base 10 and coupled to one of the
sprockets 22 for manually driving the chains 21 and for moving or
adjusting the followers 24 along the casings 11, 12 or relative to the
supporting base 10. An elbow 14 may be pivotally or rotatably
attached to the supporting base 10 for adjustably supporting such as
a control box or device 15 thereon. One or more rods 16 may further
be provided and attached to the supporting base 10, and each for
supporting a stop 17 which may be engaged with the work pieces 8
(FIGS. 7, 8) for anchoring the work pieces 8 to the supporting base
10.
The adjusting means or device 20 further includes a pole 25
slidably attached or coupled to each of the followers 24 with one or
more brackets 26 and one or more wheels or rollers 27 (FIGS. 4, 5)
for allowing the poles 25 to be moved forwardly and rearwardly
relative to the supporting base 10. A table 30 includes one or more
ears 31 extended downwardly therefrom for attaching or securing to
the poles 25 with such as fasteners or latches (not shown) for
allowing the table 30 to be moved forwardly and rearwardly relative
to the supporting base 10 with the poles 25, and includes a handle
32 attached to the front portion thereof for being held or grasped by
the users to move the table 30 forwardly and rearwardly relative to
the supporting base 10.
The table 30 may include one or more table members 33
foldably or detachably secured together for such as folding to a
compact storing configuration, and may include one or more further
pivotal or foldable stops 34 (FIGS. 1, 3, 9-10, 13-16) attached or
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coupled to the table 30 for engaging with the work pieces 8 (FIG. 14)
and for anchoring the work pieces 8 to the table 30. The table 30
may be used for supporting the work pieces 8 (FIGS. 7-12, 14-15),
and may be moved up and down relative to the supporting base 10
by the adjusting means or device 20, and may be moved forwardly
and rearwardly relative to the supporting base 10 with the handle 32
and thus for allowing the table 30 and the work pieces 8 to be
moved toward or away from a sanding device 40.
The sanding device 40 includes a housing 41 pivotally or
rotatably attached to the supporting base 10 with a pivot axle 42
(FIGS. 14-16) for allowing the housing 41 pivoted or rotated
relative to the supporting base 10 from or between one position or
horizontal position (FIGS. 1-3, 6-12) and the other position or
vertical position (FIGS. 13-15), a driven roller 43 and an idle roller
44 rotatably disposed in and attached to the housing 41 (FIGS. 7-8,
11-12), and an endless driving belt 45 engaged over or around the
driven roller 43 and the idle roller 44, and a driving motor 46
coupled to the driven roller 43 for rotating or driving the sanding
belt 45 to sand or to grind the work pieces 8. Another hand wheel 47
may be rotatably attached to the housing 41 and coupled to the
driven roller 43 or the idle roller 44 for adjusting or stretching the
sanding belt 45.
In operation, as shown in FIGS. 7-12, the sanding belt 45 may
be supported on the horizontal position, and the work pieces 8 may
be moved up and down relative to the supporting base 10 or relative
to the sanding belt 45 with the table 30 and by the adjusting means
or device 20 for allowing the sanding belt 45 to sand or grind the
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upper portion of the work pieces 8. Alternatively, as shown in FIGS.
13-15 and 17, when the housing 41 is rotated relative to the
supporting base 10 to other position or to the vertical position, the
work pieces 8 may be moved forwardly and rearwardly relative to
the supporting base 10 or moved rearwardly toward the sanding belt
45 with the table 30 for allowing the sanding belt 45 to sand or
grind the rear or side portion of the work pieces 8.
As shown in FIGS. 1-3, the housing 41 includes a cover 48
hinged to the upper portion of the housing 41, and a hand grip 49
attached to the cover 48 for rotating the cover 48 relative to the
housing 41, and for opening the sanding belt 45 (FIGS. 14-15) and
for allowing the sanding belt 45 to be exposed and to sand or grind
the work pieces 8 when the sanding belt 45 is located at the vertical
position. As shown in FIGS. 1-3 and 13, a lever 50 is hinged to the
housing 41 and includes an oblong hole or channel 51 formed
therein, and a fastening device 52 is attached to the supporting base
10 and engaged with the channel 51 of the lever 50 for selectively or
adjustably securing the housing 41 to the supporting base 10 at
either the horizontal position (FIGS. 1-3, 6-12) or the vertical
position (FIGS. 13-15). A shield 53 may further be provided and
pivotally hinged or secured to the supporting base 10 with a fastener
54 which may release the shield 53 for allowing the shield 53 to be
rotated relative the supporting base 10 and to selectively cover or
shield the opened bottom portion of the housing 41 or of the sanding
belt 45 when the sanding belt 45 is located at the vertical position
(FIGS. 14-15).
As shown in FIGS. 1-2 and 11-12, the housing 41 may further
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include a hood 55 provided and pivotally hinged or secured to either
of the side portions of the housing 41, and an oblong hole or curved
groove 56 formed in the hood 55, and another fastener 57 attached
to either of the side portions of the housing 41 and engaged with the
curved groove 56 of the hood 55 for selectively or adjustably
securing the hood 55 to the housing 41, best shown in FIGS. 11-12,
and for suitably covering or shielding the side portions of the
housing 41. One or more hoses 58, 59 may further be attached or
coupled to the side portions of the housing 41 (FIGS. 7-8, 11-12, 17)
and coupled to a vacuum source (not shown) for vacuuming or
drawing the sand dusts that may be generated during the sanding
operations.
As shown in FIGS. 6-10, a pressing or actuating means or
device 6 may further be provided and attached the housing 41, and
includes a longitudinal shaft 60 disposed and attached to the
housing 41, a sliding member 61 slidably attached to the shaft 60
with one or more bearings 62, an arm 63 pivotally hinged or secured
to the sliding member 61 and extended through the endless driving
belt 45, and an actuating or pressing member 65 pivotally hinged or
secured to the arm 63 for being moved to engage with the driving
belt 45 and for selectively forcing or pressing the driving belt 45 to
sand or grind the work pieces 8 (FIG. 8). The arm 63 includes a
weight member 64 attached to a rear extension 66 for selectively
elevating and disengaging the actuating or pressing member 65 from
the driving belt 45 (FIG. 16) and for allowing the sanding belt 45 to
be selectively forced to engage with the work pieces 8 by the user
with the actuating or pressing member 65 (FIGS. 7-10).
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In operation, as shown in FIG. 7, the actuating or pressing
member 65 may be disengaged from the driving belt 45 by the
weight member 64 and/or the extension 66, but may be forced to
engage with the driving belt 45 in order to actuate the driving belt
45 to sand or grind the work pieces 8 with the arm 63. A hook or
retainer 80 may further be provided and attached to the housing 41
for selectively engaging with the extension 66 of the arm 63 and for
anchoring or positioning the arm 63 to the housing 41 (FIGS. 7, 10,
17) and for elevating and disengaging the actuating or pressing
member 65 from the driving belt 45 and for preventing the sanding
belt 45 from being forced to engage with the work pieces 8 by the
actuating or pressing member 65 inadvertently, particularly when
the sanding belt 45 is rotated to and located at the vertical position
(FIG. 17).
It is to be noted that the sanding belt 45 may be rotated and
adjusted relative to the supporting base 10 between the horizontal
position and the vertical position for allowing the sanding belt 45 to
selectively sand or grind the upper portion of the work pieces 8 or
the rear or the side portion of the work pieces 8. In both situations
or positions, the table 30 may also be moved up and down relative
to the supporting base 10 by the adjusting means or device 20, and
may also be moved forwardly and rearwardly relative to the
supporting base 10 with the poles 25 and the handle 32 for suitably
moving or supporting the work pieces 8 relative to the supporting
base 10 and the sanding belt 45. The typical belt sander devices
failed to provide a sanding belt that may be rotated and adjusted
relative to the supporting base 10 between the horizontal position
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and the vertical position, and simultaneously a table 30 for suitably
moving or supporting the work pieces 8 relative to the supporting
base 10 and the sanding belt 45.
Accordingly, the sander device includes a sanding belt
adjustable between a horizontal position and a vertical position, and
a feeding table for supporting and/or feeding the work pieces
through the sanding belt when the sanding belt is either in the
horizontal position or in the vertical position.
