Information
-
Patent Grant
-
6283841
-
Patent Number
6,283,841
-
Date Filed
Friday, April 21, 200024 years ago
-
Date Issued
Tuesday, September 4, 200123 years ago
-
Inventors
-
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 451 12
- 451 13
- 451 23
- 451 178
- 451 296
- 451 177
- 451 179
- 451 182
- 451 360
- 451 304
- 451 355
- 451 361
-
International Classifications
-
Abstract
A sander includes a base having a platform for supporting a work piece. A casing is rotatably secured to the base at a pivot shaft and has a plate for supporting a sander member. A lock device may secure the casing and the sander member to the base at any selected angular positions. The casing has two rotatable barrels for supporting the sander member. A motor is secured to the casing and secured to one of the barrels for driving the sander member via the barrels. The barrels may be adjusted relative to each other to tighten the sander member.
Description
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a sander, and more particularly to a sander having an adjustable sander member.
2. Description of the Prior Art
Typical sanders comprise one or more sander members rotatably secured in a housing and may not be adjusted relative to the housing, particularly may not be adjusted relative to the housing to various angular positions.
The present invention has arisen to mitigate and/or obviate the afore-described disadvantages of the conventional sanders.
SUMMARY OF THE INVENTION
The primary objective of the present invention is to provide a sander having a sander member adjustable to various angular positions for facilitating the sanding operation to the work pieces.
In accordance with one aspect of the invention, there is provided a sander comprising a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to the base at a pivot shaft, a sander member engaged on the casing and rotatable in concert with the casing about the pivot shaft for sanding the work piece, and means for securing the casing to the base at selected angular positions. The sander member may be rotated and adjusted relative to the platform at any selected angular position, and may be rotated and adjusted relative to the platform between a vertical position relative to the platform and a horizontal position parallel to or flush with the platform for allowing the work piece to be easily machined by the sander member.
The casing includes a plate extended therefrom and having a curved slot formed therein, the securing means includes a lock device engaged through the curved slot of the plate to lock the plate to the base. The lock device includes a pole extended from the base and slidably received in the curved slot of the plate, and a cam device pivotally secured to the pole and engaged with the plate for securing the plate to the base at any selected angular position.
The casing includes a first barrel and a second barrel rotatably secured thereon, the sander member is engaged around the first and the second barrels. A driving device is further provided for driving the sander member and includes a motor secured to the plate and having a spindle secured to the first barrel, such that the sander member may be driven by the motor via the barrels. A table is further secured to the motor and provided beside the first barrel for supporting the work piece to be machined by the sander member that is engaged over the first barrel.
The casing includes a support for rotatably supporting the second barrel. A device is further provided for moving the support and the second barrel relative to the casing to tighten and to release the sander member.
A stop is further secured to the casing and engaged over the sander member for engaging with the work piece and for allowing the work piece to be easily machined by the sander member. A cover is secured to the casing for shielding the first and the second barrels. A cap is detachably secured to the cover for shielding the first barrel and the sander member. A lid is rotatably secured to the cap for shielding the first barrel. The cap may include a port coupled to a vacuum device which may be used for drawing and collecting the dirt and the sanded materials removed from the work piece by the sander member.
Further objectives and advantages of the present invention will become apparent from a careful reading of a detailed description provided hereinbelow, with appropriate reference to accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1
is an exploded view of a sander in accordance with the present invention;
FIG. 2
is a front perspective view of the sander;
FIG. 3
is a front view of the sander;
FIG. 4
is a front view of the sander, similar to
FIG. 3
, illustrating the operation of the sander;
FIG. 5
is a rear perspective view of the sander, in which the sander device has been rotated to a lay down position.
FIGS. 6 and 7
are side views illustrating the operation of the sander;
FIG. 8
is a front perspective view illustrating the application of the sander.
FIG. 9
is a front prespective view of a shielding cap.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to the drawings, and initially to
FIGS. 1-3
, a sander in accordance with the present invention comprises a base
10
including a switch box
11
disposed therein and including a switch
12
attached thereto for controlling the operation of the sander. The base
10
includes a housing
14
secured on top thereof, and includes a pair of panels
16
secured to the bottom of a platform
15
and slidably received in and adjustable relative to the housing
14
. The panels
16
each includes an oblong hole
17
formed therein for slidably receiving a fastener
18
which may secure the platform
15
at different heights or angular positions relative to the housing
14
(
FIGS. 3
,
4
). The housing
14
includes a bracket
20
secured thereto and having one or more sleeves
23
provided therein.
A casing
21
is rotatably secured to the housing
14
at a pivot shaft
22
which is engaged through a sleeve
24
of the casing
21
and engaged through the sleeves
23
of the bracket
20
of the housing
14
, such that the casing
21
may be rotated relative to the housing
14
about the pivot shaft
22
. The casing
21
includes a plate
25
extended therefrom and perpendicular to the pivot shaft
22
and having a curved slot
26
formed therein. A motor
27
is secured to the plate
25
by such as fasteners and includes a hub
28
provided thereon for receiving a post
37
that is extended from a table
36
which may be secured to the hub
28
of the motor
27
with the fastener
38
. A barrel
40
is secured to the spindle
29
of the motor
27
and driven by the motor
27
. The table
36
includes an opening
39
formed therein for receiving the barrel
40
. A pole
30
is secured to the base
10
and slidably received in the curves slot
26
of the plate
25
. A cam
31
is pivotally secured to the pole
30
at a pivot pin
32
, and a lever
33
is secured to the cam
31
for rotating the cam
31
and for actuating the cam
31
to lock the plate
25
to the base
10
and for securing the plate
25
and the casing
21
to the base
10
and the housing
14
at the selected angular positions (
FIGS. 6
,
7
). A gasket
34
may be engaged on the pole
30
and engaged between the plate
25
and the cam
31
.
Another barrel
41
is rotatably secured in a support
42
at a pivot axle
43
which has two ends slidably engaged through a pair of grooves
44
of the casing
21
. The support
42
includes an extension
46
slidably engaged through an ear
47
of the casing
21
. A stud
49
is secured on the free end of the extension
46
and is engageable with the ear
47
of the casing
21
for preventing the support
42
from being disengaged from the casing
21
. A handle
50
is pivotally secured to the extension
46
at a pivot rod
51
and is slidably received in a channel
52
of the casing
21
(
FIGS. 5
,
8
). A spring
48
is engaged on the extension
46
and engaged between the pivot rod
51
and the ear
47
of the casing
21
or between the support
42
and the casing
21
for biasing the barrel
41
away from the barrel
40
. A sander member
60
(
FIGS. 2
,
8
) is engaged around the barrels
40
,
41
and driven by the motor
27
via the barrel
40
for sanding purposes. The sander member
60
may thus be attached on the casing
21
and may be rotated in concert with the casing
21
about the pivot shaft
22
. The handle
50
may move support
42
and the barrel
41
relative to the casing
21
and the barrel
40
for tightening the sander member
60
. A fastener
53
is threaded through a flange
54
of the casing
21
(
FIGS. 2
,
8
) and is threaded through the pivot axle
43
for adjusting or securing the pivot axle
43
and the barrel
41
and the support
42
to the casing
21
. The fastener
53
may further thread through a flange
56
of the support
42
(FIG.
1
). A spring
55
may be engaged on the fastener
53
and engaged with the pivot axle
43
for applying a resilient force between the pivot axle
43
and the fastener
53
or the support
42
.
A stop
61
is secured to the casing
21
with one or more fasteners
62
and includes an arm
63
extended therefrom. The sander member
60
is slidably received between the casing
21
and the arm
63
which may engage with the work piece and which may retain the work piece relative to the casing
21
for allowing the work piece to be easily machined by the sander member
60
. A cover
57
is secured to the casing
21
with a quick release device
58
for covering the support
42
and the barrel
41
and the sander member
60
. A cap
70
is provided for shielding a portion of the sander member
60
that is engaged on the barrel
40
(
FIGS. 2-5
) and includes a latch device
71
(
FIG. 9
) for engaging with the cover
57
and for securing to the cover
57
, and includes a port
72
provided thereon for coupling to a vacuum device which may draw and collect the dust sanded from the work piece. A lid
73
is rotatably secured to the cap
70
at a pivot pin
74
(
FIG. 2
) with a fastener
76
(FIG.
1
), and includes a knob
77
for rotating the lid
73
to shield the barrel
40
(FIGS.
2
-
5
).
In operation, as shown in
FIGS. 2 and 5
, the casing
21
may be adjusted relative to the housing
14
and the platform
15
to any suitable angular position and may be secured to the base
10
and the housing
14
with the cam
31
. Particularly, the sander member
60
may be rotated to a position perpendicular to the platform
15
(
FIG. 2
) or to a position parallel to or flush with the platform
15
such that the work piece may be easily machined. In addition, as shown in
FIG. 8
, when the cap
70
is removed from the cover
57
, the sander member
60
engaged around the barrel
40
may also be used for sanding the work piece, particularly for sanding the surfaces in the corner areas of the work piece. The table
36
may be secured to the motor
27
for supporting the work piece to be machined by the sander member
60
that is engaged around the barrel
40
.
Accordingly, the sander in accordance with the present invention includes a sander member adjustable to various angular positions for facilitating the sanding operation to the work pieces.
Although this invention has been described with a certain degree of particularity, it is to be understood that the present disclosure has been made by way of example only and that numerous changes in the detailed construction and the combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as hereinafter claimed.
Claims
- 1. A sander comprising:a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to said base at a pivot shaft, said casing including a plate extended therefrom and having a curved slot formed therein, a sander member engaged on said casing and rotatable in concert with said casing about said pivot shaft for sanding the work piece, and means for securing said casing to said base at selected angular positions, said securing means including a lock device engaged through said curved slot of said plate to lock said Plate to said base, said lock device including a Pole extended from said base and slidably received in said curved slot of said plate, and a cam device pivotally secured to said Pole and engaged with said plate for securing said plate to said base.
- 2. The sander according to claim 1, wherein said casing includes a first barrel and a second barrel rotatably secured thereon, said sander member is engaged around said first and said second barrels.
- 3. The sander according to claim 4 further comprising means for driving said sander member.
- 4. The sander according to claim 3, wherein said driving means includes a motor secured to said plate and having a spindle secured to said first barrel.
- 5. The sander according to claim 4, wherein said casing includes a support for rotatably supporting said second barrel.
- 6. The sander according to claim 5 further comprising means for moving said support and said second barrel relative to said casing to tighten said sander member.
- 7. A sander comprising:a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to said base at a pivot shaft, said casing including a first barrel and a second barrel rotatable secured thereon, a sander member engaged on said casing and engaged around said first and said second barrels and rotatable in concert with said casing about said pivot shaft for sanding the work piece, means for securing said casing to said base at selected angular positions, means for driving said sander member, said driving means including a motor secured to said plate and having a spindle secured to said first barrel, and a table secured to said motor and provided beside said first barrel.
- 8. A sander comprising:a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to said base at a pivot shaft, a sander member engaged on said casing and rotatable in concert with said casing about said pivot shaft for sanding the work piece, means for securing said casing to said base at selected angular positions, and a stop secured to said casing and engaged over said sander member for engaging with the work piece.
- 9. A sander comprising:a base including a platform secured thereon for supporting a work piece, a casing rotatably secured to said base at a pivot shaft, a sander member engaged on said casing and rotatable in concert with said casing about said pivot shaft for sanding the work piece, means for securing said casing to said base at selected angular positions, and a cover secured to said casing for shielding said first and said second barrels.
- 10. The sander according to claim 9, wherein said cover includes a cap detachably secured thereto for shielding said first barrel.
- 11. The sander according to claim 10, wherein said cover includes a lid rotatably secured to said cap for shielding said first barrel.
US Referenced Citations (4)