US20230001532A1 - Vacuum Sander - Google Patents
Vacuum Sander Download PDFInfo
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- US20230001532A1 US20230001532A1 US17/810,193 US202217810193A US2023001532A1 US 20230001532 A1 US20230001532 A1 US 20230001532A1 US 202217810193 A US202217810193 A US 202217810193A US 2023001532 A1 US2023001532 A1 US 2023001532A1
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- handle attachment
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- vacuum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/18—Single-purpose machines or devices for grinding floorings, walls, ceilings or the like
Definitions
- the present disclosure generally relates to a vacuum sander.
- a motorized vacuum sander may be used to sand drywall and reduce clean up time by collecting dust and debris while sanding drywall compound, for example.
- a dust collection system may be coupled to the motorized sander whereby a vacuum draws the sanded drywall dust into a dust collecting vessel as the drywall compound is removed.
- a vacuum sander generally comprises an elongate handle; a forked handle attachment coupled to the elongate handle, wherein the forked handle attachment includes two prongs; and a drive coupled to the forked handle between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive movement of the sanding implement.
- a head assembly for a vacuum sander generally comprises a forked handle attachment configured to couple to an elongate handle, wherein the forked handle attachment includes two prongs; a drive rotatably coupled to the forked handle attachment between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and a debris shroud coupled to the drive and configured to enclose the sanding implement when coupled to the drive.
- a head assembly of a vacuum sander generally comprises a handle attachment configured to couple to an elongate handle; a drive configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and a debris shroud configured to enclose the sanding implement when coupled to the drive.
- the handle attachment is rotatable coupled to the drive to allow selective rotation of the handle attachment relative to the drive and the debris shroud about a first axis.
- At least a portion of the drive is rotatable relative to the debris shroud to allow selective rotation of said at least a portion of the drive and the handle attachment relative to the debris shroud about a second axis different from the first axis.
- FIG. 1 is a perspective of one embodiment of a vacuum sander constructed according to the teachings of the present disclosure.
- FIG. 2 is an enlarged perspective of a sanding head of the vacuum sander
- FIG. 3 is an exploded view of FIG. 2 .
- FIG. 4 is an exploded view of a drive of the sanding head.
- FIG. 5 is a right perspective of a housing body of a belt-drive transmission of the drive.
- FIG. 6 is a left perspective of a housing body of a belt-drive transmission of the drive.
- FIG. 7 is an exploded view of a gearbox transmission of the drive.
- FIG. 8 is a bottom perspective of the gearbox transmission, with a worm and an output shaft of the belt-drive transmission exploded therefrom.
- a vacuum sander is generally indicated at reference numeral 10 .
- the illustrated vacuum sander 10 is suitable for sanding drywall, as is generally known in the art.
- the vacuum sander 10 includes a sanding head, generally indicated at 12 ; an elongate handle or pole 14 coupled to the head and extending distally therefrom; and a control 16 coupled to the handle 14 .
- a sanding head generally indicated at 12
- an elongate handle or pole 14 coupled to the head and extending distally therefrom
- a control 16 coupled to the handle 14 .
- the sanding head 12 includes a drive, generally indicated at 17 (e.g., an electrically-powered drive), configured to drive rotation of a sanding disc (not shown) coupled to the head assembly; a debris shroud 18 coupled to the drive; and a handle attachment, generally indicated at 19 , coupling the handle to the drive.
- the illustrated debris shroud 18 includes ribs on an upper surface thereof to provide rigidity to the shroud to maintain flatness.
- the handle 14 is hollow and defines a vacuum passage 20 extending along its length between its proximal and distal ends in fluid communication with the vacuum passage of the head 12 .
- the exterior of the illustrated handle 14 has a polygonal (e.g., octagonal) cross-sectional shape, although it may have other shapes.
- the handle 14 may be adjustable in length (e.g., telescoping).
- the proximal end of the handle 14 is operatively coupled to a vacuum source 21 configured to pull a vacuum or create negative pressure within the handle and the head 12 .
- a flexible tube 22 fluidly connects the handle 14 to the vacuum source 20 .
- a canister or container 24 is fluidly connected to the vacuum source 21 to collect debris being drawn from the head 12 and through the handle 14 .
- the control 16 is coupled to the handle 14 between the proximal and distal ends.
- the control 16 includes one or more actuators (e.g., button, lever, or the like) in electrical communication with the drive 17 of the head assembly 12 and configured to actuate operation of the head assembly (i.e., rotation of the sanding disc) and/or the vacuum source 21 .
- the control 16 is electrically connected to the drive 17 via an electrical wire 30 other electrical conductor extending along the handle 14 .
- the control 16 is electrically connectable to a power source via an electrical cord 32 or other electrical conductor extending proximally from the proximal end of the handle 14 .
- the vacuum sander 10 may be battery-operated and a battery (e.g., a rechargeable battery) may be coupled (e.g., mounted on) the sander.
- a battery e.g., a rechargeable battery
- the handle attachment 19 is forked and includes two prongs (e.g., upper and lower prongs 40 a , 40 b ) converging at a coupling 42 configured to be fastened (such as by screw, bolts, or other fasteners) to the distal end of the handle 14 .
- Each of the prongs 40 a , 40 b and the coupling 42 defines a portion of a vacuum passage of the head 12 in fluid communication with the vacuum passage 20 of the handle 14 .
- Each of the prongs 40 a , 40 b is rotatably coupled to the drive 17 at a drive coupling 40 to allow selective rotation of the attachment 19 and the handle 14 about a first axis A 1 ( FIG.
- the prongs 40 a , 40 b are also fluidly connected to a portion of the vacuum passage of the head 12 extending through the drive, as explained in more detail below.
- the drive 17 is received in the space between the prongs 40 a , 40 b to provide clearance for the attachment 19 and the handle 14 to rotate about the first axis A 1 .
- the attachment 19 is rotatable about 180 degrees about the axis A 1 .
- the drive 17 includes an electric motor 50 electrically connected to the control 16 ; a belt-drive transmission, generally indicated at 52 , operatively coupled to the electric motor; and a gearbox transmission, generally indicated at 54 , operatively coupled to the belt-drive transmission.
- Mechanical power is transmitted from the electric motor 50 to the sanding disc through the belt-drive and gearbox transmissions 52 , 54 , respectively.
- the electric motor 50 includes an output shaft 60 that is rotatably driven about an output axis OA 1 .
- a fan 62 is coupled to the output shaft 60 to produce air flow through the belt-drive transmission 52 to cool the motor 50 .
- the motor 50 is a universal motor, although it may be of other types. In another embodiment, the motor may be another type of motor other than electrical, such a pneumatic.
- the belt-drive transmission 52 includes a belt-drive housing 70 , and a belt assembly 72 in the housing.
- the belt-drive housing 70 includes a housing body 74 , a belt assembly cover 76 , and a divider 78 sandwiched between the housing body and the belt assembly cover.
- the output shaft 60 of the motor 50 extends into the belt-drive housing 70 through the housing body 74 .
- the fan 62 is received within a cavity 80 defined by the housing body 74 and a fan portion of the divider plate 78 overlies the fan to capture the fan within the cavity.
- a bearing 86 coupled to the output shaft 60 of the motor 50 is received in an opening 88 in the divider plate 78 to allow rotation of the output shaft.
- the belt assembly 72 includes an input shaft 90 coaxially coupled to the output shaft 60 of the motor 50 for rotation about the axis OA 1 of the output shaft; an input gear 92 coupled to the input shaft for rotation about the axis OA 1 of the output shaft; an output gear 96 coupled to the input gear by a toothed belt 98 and configured to rotate about its center; and an output shaft 100 coaxially coupled to the output gear for rotating about its axis OA 2 .
- the input and output gears 92 , 96 and the belt 98 are received in the cover 76 and on the side of the divider plate 78 opposite the housing body 74 .
- the output shaft 100 of the belt assembly 72 extends through an opening 102 in the divider plate 78 and is coupled to a bearing 104 received in the opening.
- the diameter of the first gear 92 is less than the diameter of the second gear 96 .
- the gear ratio may be from about 3:1 to about 6:1, or other suitable ratios.
- the gearbox transmission 54 includes a gearbox housing 110 defining a gear compartment into which the output shaft 100 of the belt assembly 72 extends.
- the belt-drive housing 70 and in particular the housing body 74 , is rotatably coupled to the gearbox housing 110 such that the belt-drive transmission—along with the motor 50 , the attachment 19 , and the handle 14 —is rotatable generally about an axis A 2 that is coaxial with the output axis OA 2 of the output shaft 100 , although the axis of rotation A 2 may not be coaxial with the output axis OA 2 in other embodiments.
- the gearbox transmission 54 further includes a worm 111 coupled to the output shaft 100 of the belt assembly 72 ; a worm gear 112 engaging the worm; and an output shaft 114 coaxially coupled to the worm gear for rotation about its axis OA 3 .
- the output shaft 114 extends through an opening 118 in an upper surface of the debris shroud 18 .
- the output shaft 114 is configured to couple to a sanding disc within the shroud 18 .
- Bearings 120 are disposed within the gearbox.
- the output shaft 60 of the motor 50 is rotatably driven to impart coaxial rotation of the input shaft 90 and input gear 92 of the belt assembly 72 .
- Rotation of the input gear 92 drives axial rotation of the output gear 96 and output shaft 100 of the belt assembly 72 via the belt 98 .
- Rotation of the output shaft 100 of the belt assembly 72 drives rotation of the worm 111 , which in turn drives rotation of the worm gear 112 and the output shaft of the gearbox transmission to rotate the sanding disc.
- the drive 17 defines the portion of the vacuum passage that fluidly connects the debris shroud 18 to the handle attachment 19 and the handle 14 .
- the vacuum passage is defined the coupling 40 , the belt-drive housing body 74 , and the gearbox housing 110 .
- the coupling 40 defines upper and lower downstream openings 120 a , 120 b fluidly connecting the prongs 40 a , 40 b of the forked attachment 19 and a coupling plenum 124 defined by the coupling.
- the coupling plenum 124 is fluidly connected to a housing plenum 126 defined by the housing body 74 and the divider plate 78 .
- the divider plate 78 separates the vacuum passage and the belt assembly cover 76 .
- the housing body 74 defines an opening 128 (e.g., an annulus) to fluidly connect the housing plenum 126 to a gearbox plenum 130 in the gearbox housing 110 .
- a boss 140 which may include a bearing, for the output shaft 100 of the belt-drive transmission 52 extends through the opening 128 , whereby the vacuum passage extends around the boss.
- the gearbox plenum 130 extends from a lower surface of the gearbox housing 110 and is in fluid communication with one or more openings 134 in the upper surface of the debris shroud 18 .
- the vacuum pulls a vacuum or creates negative pressure within the vacuum passage to draw debris from the sanding disc, through the sanding head 17 , the attachment 19 , and the handle, into the container 24 .
- the debris flows through the openings 134 in the debris shroud 18 and into the gearbox plenum 130 .
- the debris flows through the housing body 74 of the belt-drive transmission 52 , into the plenum 124 of the coupling 44 .
- the debris is drawn into the handle attachment 19 , and then into the vacuum passage of the handle 14 where it exits and enters the container 24 .
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
A vacuum sander includes a head assembly. A handle attachment is rotatable coupled to a drive to allow selective rotation of the handle attachment relative to the drive and a debris shroud about a first axis. The drive is rotatable relative to the debris shroud to allow selective rotation of the drive and the handle attachment relative to the debris shroud about a second axis different from the first axis. The drive is rotatably coupled to a forked handle attachment between two prongs thereof. The drive is configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis.
Description
- The present application claims the benefit of U.S. Provisional Ser. No. 63/216,997, filed Jun. 30, 2021, the entirety of which is incorporated by reference herein.
- The present disclosure generally relates to a vacuum sander.
- A motorized vacuum sander may be used to sand drywall and reduce clean up time by collecting dust and debris while sanding drywall compound, for example. A dust collection system may be coupled to the motorized sander whereby a vacuum draws the sanded drywall dust into a dust collecting vessel as the drywall compound is removed.
- In one aspect, a vacuum sander generally comprises an elongate handle; a forked handle attachment coupled to the elongate handle, wherein the forked handle attachment includes two prongs; and a drive coupled to the forked handle between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive movement of the sanding implement.
- In another aspect, a head assembly for a vacuum sander generally comprises a forked handle attachment configured to couple to an elongate handle, wherein the forked handle attachment includes two prongs; a drive rotatably coupled to the forked handle attachment between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and a debris shroud coupled to the drive and configured to enclose the sanding implement when coupled to the drive.
- In yet another aspect, a head assembly of a vacuum sander generally comprises a handle attachment configured to couple to an elongate handle; a drive configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and a debris shroud configured to enclose the sanding implement when coupled to the drive. The handle attachment is rotatable coupled to the drive to allow selective rotation of the handle attachment relative to the drive and the debris shroud about a first axis. At least a portion of the drive is rotatable relative to the debris shroud to allow selective rotation of said at least a portion of the drive and the handle attachment relative to the debris shroud about a second axis different from the first axis.
-
FIG. 1 is a perspective of one embodiment of a vacuum sander constructed according to the teachings of the present disclosure. -
FIG. 2 is an enlarged perspective of a sanding head of the vacuum sander; -
FIG. 3 is an exploded view ofFIG. 2 . -
FIG. 4 is an exploded view of a drive of the sanding head. -
FIG. 5 is a right perspective of a housing body of a belt-drive transmission of the drive. -
FIG. 6 is a left perspective of a housing body of a belt-drive transmission of the drive. -
FIG. 7 is an exploded view of a gearbox transmission of the drive. -
FIG. 8 is a bottom perspective of the gearbox transmission, with a worm and an output shaft of the belt-drive transmission exploded therefrom. - Referring to
FIG. 1 , one embodiment of a vacuum sander is generally indicated atreference numeral 10. The illustratedvacuum sander 10 is suitable for sanding drywall, as is generally known in the art. In general, thevacuum sander 10 includes a sanding head, generally indicated at 12; an elongate handle orpole 14 coupled to the head and extending distally therefrom; and acontrol 16 coupled to thehandle 14. Referring toFIG. 2 , as explained in more detail below, thesanding head 12 includes a drive, generally indicated at 17 (e.g., an electrically-powered drive), configured to drive rotation of a sanding disc (not shown) coupled to the head assembly; adebris shroud 18 coupled to the drive; and a handle attachment, generally indicated at 19, coupling the handle to the drive. The illustrateddebris shroud 18 includes ribs on an upper surface thereof to provide rigidity to the shroud to maintain flatness. - Referring still to
FIG. 1 , thehandle 14 is hollow and defines avacuum passage 20 extending along its length between its proximal and distal ends in fluid communication with the vacuum passage of thehead 12. The exterior of the illustratedhandle 14 has a polygonal (e.g., octagonal) cross-sectional shape, although it may have other shapes. Thehandle 14 may be adjustable in length (e.g., telescoping). The proximal end of thehandle 14 is operatively coupled to avacuum source 21 configured to pull a vacuum or create negative pressure within the handle and thehead 12. As an example, aflexible tube 22 fluidly connects thehandle 14 to thevacuum source 20. A canister orcontainer 24 is fluidly connected to thevacuum source 21 to collect debris being drawn from thehead 12 and through thehandle 14. - As shown in
FIG. 1 , thecontrol 16 is coupled to thehandle 14 between the proximal and distal ends. Thecontrol 16 includes one or more actuators (e.g., button, lever, or the like) in electrical communication with thedrive 17 of thehead assembly 12 and configured to actuate operation of the head assembly (i.e., rotation of the sanding disc) and/or thevacuum source 21. Referring toFIG. 2 , thecontrol 16 is electrically connected to thedrive 17 via anelectrical wire 30 other electrical conductor extending along thehandle 14. As shown inFIG. 1 , thecontrol 16 is electrically connectable to a power source via anelectrical cord 32 or other electrical conductor extending proximally from the proximal end of thehandle 14. The use of the actuator(s) of thecontrol 16 selectively supplies power from the power source to thedrive 17. In another embodiment, thevacuum sander 10 may be battery-operated and a battery (e.g., a rechargeable battery) may be coupled (e.g., mounted on) the sander. - Referring to
FIGS. 2 and 3 , thehandle attachment 19 is forked and includes two prongs (e.g., upper andlower prongs coupling 42 configured to be fastened (such as by screw, bolts, or other fasteners) to the distal end of thehandle 14. Each of theprongs coupling 42 defines a portion of a vacuum passage of thehead 12 in fluid communication with thevacuum passage 20 of thehandle 14. Each of theprongs drive 17 at adrive coupling 40 to allow selective rotation of theattachment 19 and thehandle 14 about a first axis A1 (FIG. 2 ) relative to the debris shroud (and the drive). Theprongs head 12 extending through the drive, as explained in more detail below. Thedrive 17 is received in the space between theprongs attachment 19 and thehandle 14 to rotate about the first axis A1. In one example, theattachment 19 is rotatable about 180 degrees about the axis A1. - Referring to
FIG. 4 , thedrive 17 includes anelectric motor 50 electrically connected to thecontrol 16; a belt-drive transmission, generally indicated at 52, operatively coupled to the electric motor; and a gearbox transmission, generally indicated at 54, operatively coupled to the belt-drive transmission. Mechanical power is transmitted from theelectric motor 50 to the sanding disc through the belt-drive andgearbox transmissions electric motor 50 includes anoutput shaft 60 that is rotatably driven about an output axis OA1. Afan 62 is coupled to theoutput shaft 60 to produce air flow through the belt-drive transmission 52 to cool themotor 50. In one example, themotor 50 is a universal motor, although it may be of other types. In another embodiment, the motor may be another type of motor other than electrical, such a pneumatic. - Referring to
FIGS. 3 and 4 , the belt-drive transmission 52 includes a belt-drive housing 70, and abelt assembly 72 in the housing. The belt-drive housing 70 includes ahousing body 74, abelt assembly cover 76, and adivider 78 sandwiched between the housing body and the belt assembly cover. Theoutput shaft 60 of themotor 50 extends into the belt-drive housing 70 through thehousing body 74. Thefan 62 is received within acavity 80 defined by thehousing body 74 and a fan portion of thedivider plate 78 overlies the fan to capture the fan within the cavity. Abearing 86 coupled to theoutput shaft 60 of themotor 50 is received in anopening 88 in thedivider plate 78 to allow rotation of the output shaft. - The
belt assembly 72 includes aninput shaft 90 coaxially coupled to theoutput shaft 60 of themotor 50 for rotation about the axis OA1 of the output shaft; aninput gear 92 coupled to the input shaft for rotation about the axis OA1 of the output shaft; anoutput gear 96 coupled to the input gear by atoothed belt 98 and configured to rotate about its center; and anoutput shaft 100 coaxially coupled to the output gear for rotating about its axis OA2. The input andoutput gears belt 98 are received in thecover 76 and on the side of thedivider plate 78 opposite thehousing body 74. Theoutput shaft 100 of thebelt assembly 72 extends through anopening 102 in thedivider plate 78 and is coupled to abearing 104 received in the opening. The diameter of thefirst gear 92 is less than the diameter of thesecond gear 96. For example, the gear ratio may be from about 3:1 to about 6:1, or other suitable ratios. - Referring to
FIG. 7 , thegearbox transmission 54 includes agearbox housing 110 defining a gear compartment into which theoutput shaft 100 of thebelt assembly 72 extends. As shown inFIG. 2 , the belt-drive housing 70, and in particular thehousing body 74, is rotatably coupled to thegearbox housing 110 such that the belt-drive transmission—along with themotor 50, theattachment 19, and thehandle 14—is rotatable generally about an axis A2 that is coaxial with the output axis OA2 of theoutput shaft 100, although the axis of rotation A2 may not be coaxial with the output axis OA2 in other embodiments. Thegearbox transmission 54 further includes aworm 111 coupled to theoutput shaft 100 of thebelt assembly 72; aworm gear 112 engaging the worm; and anoutput shaft 114 coaxially coupled to the worm gear for rotation about its axis OA3. Theoutput shaft 114 extends through anopening 118 in an upper surface of thedebris shroud 18. Theoutput shaft 114 is configured to couple to a sanding disc within theshroud 18.Bearings 120 are disposed within the gearbox. - As can be understood from the above description, in operation the
output shaft 60 of themotor 50 is rotatably driven to impart coaxial rotation of theinput shaft 90 andinput gear 92 of thebelt assembly 72. Rotation of theinput gear 92 drives axial rotation of theoutput gear 96 andoutput shaft 100 of thebelt assembly 72 via thebelt 98. Rotation of theoutput shaft 100 of thebelt assembly 72 drives rotation of theworm 111, which in turn drives rotation of theworm gear 112 and the output shaft of the gearbox transmission to rotate the sanding disc. - As mentioned above, the
drive 17 defines the portion of the vacuum passage that fluidly connects thedebris shroud 18 to thehandle attachment 19 and thehandle 14. In this regard, the vacuum passage is defined thecoupling 40, the belt-drive housing body 74, and thegearbox housing 110. Thecoupling 40 defines upper and lowerdownstream openings prongs attachment 19 and acoupling plenum 124 defined by the coupling. Thecoupling plenum 124 is fluidly connected to ahousing plenum 126 defined by thehousing body 74 and thedivider plate 78. Thedivider plate 78 separates the vacuum passage and thebelt assembly cover 76. Thehousing body 74 defines an opening 128 (e.g., an annulus) to fluidly connect thehousing plenum 126 to agearbox plenum 130 in thegearbox housing 110. Aboss 140, which may include a bearing, for theoutput shaft 100 of the belt-drive transmission 52 extends through theopening 128, whereby the vacuum passage extends around the boss. As shown inFIG. 8 , thegearbox plenum 130 extends from a lower surface of thegearbox housing 110 and is in fluid communication with one ormore openings 134 in the upper surface of thedebris shroud 18. - As can be understood from the above description, in operation the vacuum pulls a vacuum or creates negative pressure within the vacuum passage to draw debris from the sanding disc, through the sanding
head 17, theattachment 19, and the handle, into thecontainer 24. The debris flows through theopenings 134 in thedebris shroud 18 and into thegearbox plenum 130. From thegearbox housing 110, the debris flows through thehousing body 74 of the belt-drive transmission 52, into theplenum 124 of thecoupling 44. From thecoupling plenum 124, the debris is drawn into thehandle attachment 19, and then into the vacuum passage of thehandle 14 where it exits and enters thecontainer 24. - Modifications and variations of the disclosed embodiments are possible without departing from the scope of the invention defined in the appended claims.
- When introducing elements of the present invention or the embodiment(s) thereof, the articles “a”, “an”, “the” and “said” are intended to mean that there are one or more of the elements. The terms “comprising”, “including” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
- As various changes could be made in the above constructions, products, and methods without departing from the scope of the invention, it is intended that all matter contained in the above description and shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
Claims (20)
1. A vacuum sander comprising:
an elongate handle;
a forked handle attachment coupled to the elongate handle, wherein the forked handle attachment includes two prongs; and
a drive coupled to the forked handle between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive movement of the sanding implement.
2. The vacuum sander set forth in claim 1 , wherein the drive is rotatably coupled to the two prongs of the forked handle attachment to allow for selective rotation of the forked handle attachment and the elongate handle relative to the drive about an axis.
3. The vacuum sander set forth in claim 2 , wherein the drive is disposed in a space between the two prongs to provide clearance for the drive as the forked handle attachment rotates about the axis.
4. The vacuum sander set forth in claim 3 , wherein together the handle, the forked handle attachment and the drive define a vacuum passage extending therethrough and configured to provide fluid communication between the sanding implement and the vacuum source.
5. The vacuum sander set forth in claim 1 , wherein the drive comprises an electric motor.
6. The vacuum sander set forth in claim 1 , wherein a proximal end of the handle is configured to be fluidly connected to a vacuum source.
7. The vacuum sander set forth in claim 1 , further comprising a control coupled to the handle, the control including an actuator in electrical communication with the drive configured to actuate operation of the drive.
8. The vacuum sander set forth in claim 1 , wherein the drive includes a motor, a gearbox transmission having an output shaft configured to couple to the sanding implement for rotating the sanding implement about the axis, and a belt-drive transmission operatively connecting the motor to the gearbox transmission.
9. The head assembly set forth in claim 8 , wherein the belt-drive transmission is rotatably coupled to the gearbox transmission to allow selective rotation of the belt-drive transmission, the motor, and the forked handle attachment relative to the gearbox transmission and the debris shroud.
10. A head assembly for a vacuum sander comprising:
a forked handle attachment configured to couple to an elongate handle, wherein the forked handle attachment includes two prongs;
a drive rotatably coupled to the forked handle attachment between the two prongs thereof, wherein the drive is configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and
a debris shroud coupled to the drive and configured to enclose the sanding implement when coupled to the drive.
11. The head assembly set forth in claim 10 , wherein the drive includes a motor, a gearbox transmission having an output shaft configured to couple to the sanding implement for rotating the sanding implement about the axis, and a belt-drive transmission operatively connecting the motor to the gearbox transmission.
12. The head assembly set forth in claim 11 , wherein the belt-drive transmission is rotatably coupled to the gearbox transmission to allow selective rotation of the belt-drive transmission, the motor, and the forked handle attachment relative to the gearbox transmission and the debris shroud.
13. The head assembly set forth in claim 11 , wherein the drive is rotatably coupled to the two prongs of the forked handle attachment to allow for selective rotation of the forked handle attachment and the elongate handle relative to the drive about an axis.
14. The head assembly set forth in claim 13 , wherein the drive is disposed in a space between the two prongs to provide clearance for the drive as the forked handle attachment rotates about the axis.
15. The head assembly set forth in claim 11 , wherein together the forked handle attachment and the drive define a vacuum passage extending therethrough and configured to provide fluid communication between the sanding implement and a vacuum source.
16. A head assembly of a vacuum sander comprising:
a handle attachment configured to couple to an elongate handle;
a drive configured to couple to a sanding implement and to selectively drive rotation of the sanding implement about an axis; and
a debris shroud configured to enclose the sanding implement when coupled to the drive,
wherein the handle attachment is rotatable coupled to the drive to allow selective rotation of the handle attachment relative to the drive and the debris shroud about a first axis,
wherein at least a portion of the drive is rotatable relative to the debris shroud to allow selective rotation of said at least a portion of the drive and the handle attachment relative to the debris shroud about a second axis different from the first axis.
17. The head assembly set forth in claim 16 , wherein the handle attachment is rotatable about the first axis in a first plane, wherein together said at least a portion of the drive and the handle attachment are rotatable about the second axis in a second plane, wherein the first and second planes are transverse to one another.
18. The head assembly set forth in claim 16 , wherein the drive includes a motor, a gearbox transmission having an output shaft configured to couple to the sanding implement for rotating the sanding implement about the axis, and a belt-drive transmission operatively connecting the motor to the gearbox transmission.
19. The head assembly set forth in claim 18 , wherein the belt-drive transmission is rotatably coupled to the gearbox transmission to allow selective rotation of the belt-drive transmission, the motor, and the forked handle attachment relative to the gearbox transmission and the debris shroud.
20. The head assembly set forth in claim 17 , wherein together the forked handle attachment and the drive define a vacuum passage extending therethrough and configured to provide fluid communication between the sanding implement and a vacuum source.
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US17/810,193 US20230001532A1 (en) | 2021-06-30 | 2022-06-30 | Vacuum Sander |
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US202163216997P | 2021-06-30 | 2021-06-30 | |
US17/810,193 US20230001532A1 (en) | 2021-06-30 | 2022-06-30 | Vacuum Sander |
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US20230001532A1 true US20230001532A1 (en) | 2023-01-05 |
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US17/810,193 Pending US20230001532A1 (en) | 2021-06-30 | 2022-06-30 | Vacuum Sander |
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WO (1) | WO2023278703A1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
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US4782632A (en) * | 1987-10-01 | 1988-11-08 | William Matechuk | Drywall sander |
US7828631B1 (en) * | 2007-07-24 | 2010-11-09 | Gary Lynn Herbert | Drywall power vacuum sander |
DE102008055797A1 (en) * | 2008-11-04 | 2010-05-06 | Kai Roscher | grinding machine |
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2022
- 2022-06-30 WO PCT/US2022/035726 patent/WO2023278703A1/en active Application Filing
- 2022-06-30 US US17/810,193 patent/US20230001532A1/en active Pending
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