CN101505899A - Portable power tool for cutting concrete board and other substrates - Google Patents
Portable power tool for cutting concrete board and other substrates Download PDFInfo
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- CN101505899A CN101505899A CNA2007800266287A CN200780026628A CN101505899A CN 101505899 A CN101505899 A CN 101505899A CN A2007800266287 A CNA2007800266287 A CN A2007800266287A CN 200780026628 A CN200780026628 A CN 200780026628A CN 101505899 A CN101505899 A CN 101505899A
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Abstract
A portable hand tool includes a housing with a handle configured to be carried by a user and a motor with a motor shaft rotatably extending therefrom. An output shaft rotatably connected to the motor shaft, upon which a cutting blade is rotatably fixed. The cutting blade is substantially enclosed within a blade guard: An impeller is rotatably mounted with one of the motor shaft or the output shaft and substantially enclosed within a fan housing. A plenum is configured to provide enclosed fluid communication between the blade guard and the fan housing, and at least one aperture defined in the blade guard in communication with the plenum.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
The application requires the U.S. Provisional Application No.60/830 of submission on July 13rd, 2006, the U.S. Provisional Application No.60/876 that on December 22nd, 449 and 2006 submitted to, and 747 priority, the full content of these two applications all is incorporated by reference thereto.
Technical field
Desired invention is broadly directed to field of power tools, more specifically and non-limiting ground, relate to a kind of cutting produces the base material of the cement plate of a large amount of particles (airborne particulate) that float and other type in cutting process handheld portable electric tool that is suitable for.
Background technology
The handheld portable electric tool is generally used for various constructions works.This instrument uses motor and operating mechanism (as rotating blade) usually, to cut on workpiece, hole, to plane or other operation.
Though can manipulate,, this electric tool has the usability of limitation in the application of some type.For example, when using traditional electric tool (as annular saw) to cut the base material (as cement plate or drywall (drywall)) of some type, can produce a large amount of dusts or other showy particle.Owing to multiple reason, these dust and granular materials that produce when the cutting base material can bring problem.At first, it is dirty and messy that these dusts and other granular materials can cause usually, thus must be after work be finished the cleaning work scene.Cleaning work not only expends time in, and because the dust that floats can not be deposited to the surface of working site at once, thereby usually can not be in cutting base material horse back cleaning work later on zone.In addition, the cement plate of a lot of types comprises the quartz that can suck, and continues during breathing to suck and gather showy dust, and this quartz that can suck can cause cancer, silicosis, and relevant with other disease.
For fear of with produce the relevant problem of this particle, the user uses the cutter sweep (as manual saw or scissors) of manual starting to cut this base material usually.Though can manipulate, these and other manual methods is very time-consuming and efficient is not high, and can not obtain best cutting profile, precision and tidiness.
Therefore, still there are improved needs,, and can be subjected to above-mentioned restriction so that the user can handle the material that some is easy to produce particle in mode rapidly and efficiently.Preferred implementation of the present invention is the improvement at these and other problem basically.
Summary of the invention
First exemplary embodiment of electric hand tool is provided.This instrument comprises: have the housing of handle, this handle is configured such that the user holds; The motor that has motor shaft, described motor shaft extends from described motor; And the output shaft that rotatably is connected in described motor shaft.Cutting tip rotatably is fixed on the described output shaft and is encapsulated in basically in the blade protector.Impeller is rotatably installed in described motor shaft or the described output shaft one and goes up and be encapsulated in the fan guard basically.Pressurization space is set to provide the sealed fluid flow between described blade protector and the described fan guard to be communicated with, and is limited with a hole that is communicated with described pressurization space on described blade protector at least.
Second exemplary embodiment of electric hand tool is provided.This instrument comprises housing and the handle that extends from this housing.This handle is set to use grasped by the user, and allows moving and operation of this portable hand-held tool.Impeller axially is installed in first end of motor shaft, is used for rotating around first axle with first rotary speed, and cutting tip is installed in second end of described motor shaft, is used for rotating simultaneously around second axis with second rotary speed.Described second axis is set to transverse to described first axle, and described impeller is actuated the particle that operation produced of cutting tip on base material in the collection assembly.Described housing is connected with base plate, and this base plate is set to be slidingly matched with described base material in the operating process of described cutting tip.
The 3rd exemplary embodiment of electric hand tool is provided.This instrument comprises the housing that has handle, and this handle extends and is set to use grasped by the user from described housing, to allow moving and operating of this portable hand-held tool.Displaceable member is set to operate on workpiece and produce granular materials from this workpiece, and the contiguous described displaceable member of pressurization space extends along periphery, and first port and second port limit the opposite end of described pressurization space respectively.Be provided with pressure source, so that described first port and second port are exerted pressure, thereby make described granular materials leave described displaceable member.Described displaceable member is rotated by motor shaft, and wherein, described pressure source comprises the impeller by described motor shaft rotation.
The 4th exemplary embodiment of electric hand tool is provided.This instrument comprises housing and the handle that extends from this housing.This handle is set to by the user with grasped and allow moving and operation of this portable hand-held tool.Be provided with the motor that has motor shaft in the described housing, this motor shaft extends from described motor.Impeller axially is installed in first end of described motor shaft, is used for the rotation of first rotary speed around first axle.Cutting tip is installed in second end of described motor shaft, is used for rotating simultaneously around second axis with second rotary speed, and wherein, described second axis is set to transverse to described first axle.Described impeller is actuated the particle that operation produced of described cutting tip on base material in the collection assembly.Described housing is connected with base plate, and this base plate is set to be slidingly matched with described base material in the operating process of described cutting tip.The contiguous described cutting tip of pressurization space extends along periphery, and first port and second port limit the opposite end of described pressurization space respectively, and described first port and second port all fluid are communicated in described impeller.
Description of drawings
Figure 1A is first perspective view of electric hand tool;
Figure 1B is another perspective view of the electric hand tool of Figure 1A;
Fig. 1 C is the side view of the electric hand tool of Figure 1A;
Fig. 1 D is the rear view of the electric hand tool of Figure 1A, and wherein the part of impeller assembly is removed;
Fig. 1 E is the end perspective view of the electric hand tool of Figure 1A;
Fig. 2 is the top schematic diagram of the electric hand tool of Figure 1A;
Fig. 3 has roughly shown the relevant portion of gear assembly of the electric hand tool of Figure 1A;
Fig. 4 is the partial cross section schematic diagram of facing of the cutting tip assembly among Fig. 2;
Fig. 5 has shown the part of Fig. 4 in more detail;
Fig. 6 provides the partial cross section schematic diagram of facing of the impeller assembly of Fig. 2;
Fig. 7 is the diagrammatic side view of selectable electric hand tool;
Fig. 7 A is the opposite side view of the instrument of Fig. 7;
Fig. 7 B is the rear perspective of the instrument of Fig. 7;
Fig. 7 C is the main perspective view of the instrument of Fig. 7;
Fig. 7 D is the rearview of the instrument of Fig. 7;
Fig. 8 is the top schematic diagram of the instrument of Fig. 7;
Fig. 9 is a kind of top schematic diagram with selectable electric tool of the impeller that rotates with the belt transmission part;
Figure 10 is a kind of top schematic diagram with selectable electric tool of the impeller that rotates with gear driving member;
Figure 10 a is the view of the electric tool of Figure 10, and wherein impeller is driven by a kind of selectable gear driving member;
Figure 11 is the top schematic diagram with the electric tool that is arranged on the impeller on the output shaft;
Figure 12 is the right side view of the instrument of Figure 11;
Figure 13 is the side view with a kind of selectable electric tool that is installed in the impeller on the motor shaft;
Figure 14 is the schematical top view of another selectable electric tool.
The specific embodiment
Preferred implementation of the present invention is at the equipment that is used to cut base material (such as but not limited to cement plate or drywall) basically.Selectively, this equipment can be used to cut arbitrarily dissimilar base material, for example fiber cement board, wood or woodwork, composite decorating board, MDF, stone material or natural or engineering ore deposit sill (as granite) and other similar material of producing a large amount of dusts and chip when cutting.
Described equipment preferably has the portable hand-held tool of motor, impeller and cutting tip.Impeller axially is installed on first end of motor, cutting tip laterally be installed on this motor with the first end second opposed end on.Preferably, described impeller can be rotated with the first different rotary speeies and second rotary speed respectively by described motor-driven simultaneously with cutting tip.Described impeller also is used for the particle guiding that described cutting tip is produced and actuates to collecting part.
Figure 1A and Figure 1B have shown the perspective view of portable hand-held tool 100 according to the first preferred embodiment of the present invention respectively.This handheld tool 100 comprises base plate 102, and this base plate 102 is set to can be along base material 142 to front slide by handle 104 in cutting operation process.Handle 104 can supply the surface of grasping for the user provides in operating process, and described instrument can singlehandedly be used.
Shown in Figure 1B and Fig. 1 E, cutting tip assembly 114 comprises the cutting tip 118 of the slit 122 that partly extends through on the base plate 102.This cutting tip 118 is preferably has a plurality of independent blade members 120 that radially extends from this cutting tip, thereby makes cutting tip 118 be particularly suited for cutting concrete board.But as required, cutting tip 118 can adopt other structure.
As the schematic diagram of Fig. 2 further as shown in, motor 106 is preferably interchange (AC) general-purpose type motor.Preferably, motor 106 is supplied with user's firing switch 126 by electric wire 124 (Fig. 2) and is exchanged (AC) electric power.Selectively, motor 106 can be supplied with by direct current (DC) electric power from the battery pack that for example is connected.Though not shown, user's firing switch can be incorporated into handle 104, thereby make the user provide actuating motor 106 required pressure with hand.
Preferably, motor 106 comprises central shaft 128, and this central shaft 128 comprises longitudinal axis U (Fig. 2), and central shaft 128 rotates with basic rotary speed.This speed can be any suitable numerical value, for example about 20000 rpms (rpm) or more than.In another preferred embodiment, the rotating speed of axle 128 is about 37000rpm.Preferably, impeller 130 is installed on first end of axle 128, is descended (swabbing pressure), thereby set up from cutting tip assembly 114 to impeller assembly 112 gas channel by conduit 132 to produce pressure.As hereinafter illustrating in greater detail, this air-flow is used for being trapped in particle that the operating process of cutting tip 118 produces and with the chip collecting mechanism 134 of this transfer of granules to impeller assembly 112.It should be noted that in this preferred implementation impeller will rotate with the rotary speed of central shaft 128 basically.
Gear-driven assembly 116 is installed on second end of central shaft 128, and this gear-driven assembly 116 comprises the gear reduction ratio of selection.In some embodiments, can use bevel gear with perpendicular axle.In other embodiments, can use spur gear or the helical gear that has parallel axes.Gear reduction ratio can be suitable arbitrarily numerical value and the rotary speed that depends on central shaft 128 and proportional with this rotary speed.A preferred gear reduction ratio is about 3.5:1.In other embodiments, can use 2:1,3:1 or other suitable speed reducing ratio.Preferably, cutting tip 118 moves to the scope of about 11000rpm at about 7500rpm, but this not necessarily.Though can use multiple gear box structure, preferred use transverse gear for example shown in Figure 3 is arranged.In some embodiments, gear assembly 116 can use worm gear, and this can provide the gear reduction ratio bigger than above-mentioned speed reducing ratio.
More particularly, Fig. 3 has shown that first gear 136 is installed on the central shaft 128 and with this central shaft 128 and has axially aligned, thereby rotated with first speed.Second gear 138 is laterally installed with the engagement of first gear 136, thus with the second speed rotation, this second speed can less than or greater than first speed.Gear 136 and 138 can be bevel gear (as shown in the figure), and in other embodiments, gear 136 and 138 can be helical gear, hypoid gear (hypoid gear), worm gear or analog.For example, second speed can be about 10000rpm.Blade support axle 140 extends from second gear 138, so that cutting tip 118 rotates with second speed.Preferably, blade support axle 140 is with 90 ° of central shafts 128 extensions with respect to motor 106 basically.As shown in Figure 2, blade support axle 140 axis T extension longitudinally.
Like this, impeller 130 and cutting tip 118 are all driven by same electric machine assembly, but separately with different rotating speed rotations.Preferably, the rotating speed of impeller 130 is greater than the rotating speed of cutting tip 118, but this not necessarily.In other embodiments, the rotating speed of cutting tip 118 can be greater than impeller 130.
Though gear assembly 116 is preferably the gear reduction assembly, this not necessarily.In selectable embodiment, this gear assembly 116 can be set to cause that speed increases rather than speed reduces.Gear assembly 116 must not be arranged between motor and the cutting tip 118 yet.For example, in another selectable embodiment, cutting tip 118 is with the basic rotary speed rotation of axle 128, and gear assembly 116 is arranged between axle 128 and the impeller 130.By reading disclosure of the present invention, those skilled in the art are easy to implement various other selections, and these selections are included in the scope of the present invention.
Fig. 4 and Fig. 1 C provide the detailed view of cutting tip assembly 114, to further specify its preferred operations.More particularly, base plate 102 can be along base material 142 to front slide, and cutting tip 118 extends through hole 122 (Figure 1B) and removes material with the cutting base material or from this base material.Preferably along direction 114 rotations (counter clockwise direction as shown in Figure 4), this can reduce, and instrument 100 is dragged the tendency of passing base material 142 forward to cutting tip 118 in operating process.
Preferably, as shown in Figure 5, cutting tip 118 extends through base material 142 and this selected distance D 1 in base material 142 belows always.This selected distance D 1 should be big as far as possible, to reduce dust and the chip that produces in the working angles to greatest extent.This has advantageously improved the ability of instrument 100, to capture all particles that produced by cutting operation basically.Instrument 100 can be set to provide blade depth constant, that select in advance, can comprise that perhaps suitable governor motion is to regulate this depth, with the base material 142 that is applicable to different-thickness.
Fig. 6 and Fig. 1 D provide the detailed view of impeller assembly 112.Fan guard 152 is formed with inner chamber 157, and impeller 130 rotates in this inner chamber 157.Fan guard 152 can form one with housing.Fan guard 152 comprises the inlet 154 that is communicated with conduit 132 fluids.Aforesaid chip collecting mechanism 134 can adopt arbitrary form, and for example the well strainer layer 156, and this well strainer layer 156 can be kept showy particle basically here, allows the air communication of " cleaning " to cross gas outlet 158 simultaneously.Described filter can be dismantled, so that clean, empty or change.Selectively, the chip collecting mechanism can comprise attachable bag (not shown), and this bag can be collected the particle of being actuated by impeller 130 from conduit 128.
To shown in Figure 8, provide the preferred hand-held plate cutter assembly 200 of another example as Fig. 7.This assembly 200 is used for cutting as cement fibrolite plate or similar base material 202.Assembly 200 can selectively be used to cut dissimilar base material 202 arbitrarily, such as but not limited to cement plate or drywall.Selectively, this assembly can be used to cut arbitrarily dissimilar base material, produces any other base material of dust and chip as fiber cement board, timber or woodwork, composite decorating board, MDF, stone material or natural or engineering ore deposit sill (as granite, fragment of brick), metal or when the cutting.
Bottom or base portion 208 preferably place on the base material 202 and at working angles and are guided along this base material by suitable handle 288 by the user.Handle 288 is moved and operation tool 200 with hand to allow the user by user's grasping.In some embodiments, the user can move and operating grip 288 with singlehanded.Preferably, cutting tip 204 extends through the hole (not shown) on the base plate 208, with near base material 202.Described in above-mentioned embodiment, the distance D 1 that cutting tip extends below bottom 208 and base material 202 should be long as much as possible, reducing the dust that produces during base material 202 in cutting and the amount of chip to greatest extent, and help dust and the chip guiding that to be produced and actuate to following port 214,216.
Preferably, assembly 200 also comprises cap assemblies 210, and cutting tip 204 rotates in this cap assemblies.Cap assemblies 210 is formed with the passage or the pressurization space 212 at the top that extends through cutting tip 204.First port 214 preferably is set to the leading edge of contiguous cutting tip 204 as shown in the figure like that, and second port 216 preferably is set to the trailing edge of contiguous cutting tip 204.Preferably, as shown in the figure, port 214,216 limits the relative end of pressurization space 212.
Preferably, apply vacuum (swabbing pressure) by conduit or leg- shape part 218 and 220 to each port 214,216.This vacuum preferably produces (Fig. 8) by impeller or other pressure source.Spendable in other embodiments other pressure apparatus comprises to cap assemblies 210 provides the additional port of normal pressure and the additional outlet that is provided with along the length of pressurization space 212.
Shown in Fig. 7 to Fig. 7 D, conduit 218 and 220 preferably meets at y-shaped junction 222, and common conduit or arm 224 222 extend to pressure source from the junction.The internal diameter of each conduit can change according to the needs of given application scenario, but is preferably formed to providing the pressure that effectively flows and reduce to fall.
First or leading edge port 214 preferably be arranged so that the particle (chip) that produces by the interaction between cutting tip 204 and the base material 202 basically towards and by these port 214 guiding with actuate.The size of port 214 and axial location, and the cutting depth of cutting tip 204 preferably is set to improve the flowability that chip leaves incision tract entry port 214.Described in above-mentioned embodiment, the maximum depth of cut of cutting tip 204 is preferably the amount that can reduce the dust that produced and chip to greatest extent and/or reduces by conduit 218,220 to greatest extent and pass dust that impeller carries out or the removing of chip.
It should be understood that assembly 200 is configured such that the most of chip that is produced can be sucked and passes first port 214.That is to say that chip meeting quilt tangentially passage upwards guides and actuates, this tangential passage is tending towards this chip is actuated and this chip guiding is actuated to leading edge port 214 towards 214 guiding of leading edge port.Upwards guiding and the chip that is not inhaled into leading edge port 214 can be advanced forward and passes the second trailing edge port 216 along pressurization space 212.Like this, all particles, dust and the chip that cutting operation produced can be captured basically and remove from the working region.
Fig. 8 provides the summary illustrative according to a kind of assembly 200 of preferred implementation.Preferably, motor 230 is the AC general-purpose machine, but selectively, motor 230 can be by the DC power supply from the battery pack that for example links to each other.
Preferably, gear assembly 236 is installed in second end of axle 232 and comprises the gear reduction ratio of selection, for example is at least 2:1.In some embodiments, can use bevel gear with vertical axis.In other embodiments, can use spur gear or helical gear with parallel axes.This provides speed reducing ratio for cutting tip 204, and to obtain required suitable value, for example (but being not limited to) is from the extremely about 11000rpm of about 7500rpm.Also can use other rotary speed that is higher or lower than this scope, for example the speed of about 5000rpm.The best rotary speed of cutting tip 204 depends on a plurality of factors, as the type of the base material 202 that will cut, the diameter of cutting tip 204, and cutting depth.Preferably, gear assembly 236 supports cutting tip 204 (Fig. 8) along the second axis R that crosses or be substantially perpendicular to motor shaft axis S.Gear assembly 236 can be provided with the gear that is similar to said gear assembly 116.
Therefore preferably, the starting of motor 230 causes cutting tip 204 and impeller 234 to move simultaneously.As shown in Figure 8, impeller 234 applies vacuum pressure to cap assemblies 210 immediately with cutting tip 204 preferred closely adjacent advantageously causing when cutting tip 204 reaches service speed or before reaching service speed.
Use the extension conduit 224 of this structure to allow particle transport to provide enough flow behaviors simultaneously, to carry dust and chip along the length of extending conduit 224 effectively to appropriate location away from the user job zone.A kind of preferred embodiment in, extend conduit 224 and end at chip collection assembly 246, as large-scale filter bag or jar.Selectively, the end of extension conduit 224 can peripherad atmosphere opening.
Said structure advantageously allow the user in the occasion of very not wishing to have chip (for example in the garage, in dwelling house or commercial building) the use portable hand-held tool, extend conduit 224 and can guide to the outside, with the particulate emission that will produce in chip collection assembly 246 or atmosphere.Aforementioned embodiments collection assembly explanation, that be shown among Fig. 6 can be used for present embodiment.
Be used to cut under the situation of cement plate at assembly 200, cutting tip 204 can be formed by the polycrystalline diamond stone structure, but also can use other material, as carbide alloy.The particularly advantageous size of multiple tooth cutting tip is that diameter is the 5-3/8 inch, but also can use other size as required, comprise about more than 7 inches or 7 inches than major diameter, and about below 4 inches or 4 inches than minor diameter.It should be understood that and arrange at the multiport of this explanation and to be particularly useful for hand-held cutting element that example is disclosed hand-held cutting element in the embodiment as described in this.
Impeller is near the setting of port 214,216, and the high relatively rotary speed of impeller 234, has improved from the collection of the initial period of tool using assembly comprehensively.Understandablely be that the preferred arrangements that impeller 234 shown in Figure 8 and cutting tip 204 are relative provides particularly advantageous layout.In other embodiments, can use independent motor, with drives impeller 234 rotatably, thereby reach equally with dust and chip remove from aforesaid operating position the operation purpose.
Similarly, the flow behavior that is provided by the preferred arrangements of this impeller 234 advantageously allows use location big capacity chip gathering system far away, comprises the system that holds the chip that derives from a plurality of sources.This provides alternative for traditional system, and traditional system uses local collecting bag, HEPA (HEPA filter) etc., and these can't tackle the situation that produces a large amount of granular materials in operating process.
Referring now to Figure 11 to Figure 12, provide a kind of selectable portable hand-held tool 500.Instrument 500 comprises: support the also housing 502 of fixed electrical machinery 510, motor 510 has the motor shaft 512 that extends from this motor; Torque drive parts 514; Output shaft 518 and cutting tip 530.Housing 502 comprises the handle 580 that extends from this housing, and this handle 580 is provided for the surface of grasping and allows the user to use and Move tool 500 with hand for the user.In some embodiments, handle 580 is set to allow user's one hand to use and moves this instrument.Trigger piece 582 is installed on the handle 580 movably and allows selectively operating electrical machines 510 of user.Cutting tip 530 can be similar to above-mentioned cutting tip 118.The part of cutting tip 530 extends through the blade hole on bottom or the base plate 519, and this bottom or base plate 519 are fixed in housing 502, and are the surfaces that instrument 500 contacts with base material that will cut or material.
As shown in figure 11, motor 510 is arranged in the housing 502, thereby makes motor shaft 512 be arranged essentially parallel to the longitudinal axis Z of cutting tip 530.In other embodiments, motor 510 can be arranged in the housing 502, so that motor shaft 512 is substantially perpendicular to the plane of passing saw blade 530 or with respect to this plane bevel.Be parallel in the embodiment of saw blade 530 at motor shaft 512, drive disk assembly 514 can be the bevel gear 514 and 516 of one group of perpendicular, this group of bevel gear 515 and 516 allows the variation of the 530 generation torque direction from motor 510 to saw blade, also allows to become from the rotary speed of motor shaft 512 rotary speed of output shaft 518 in addition.In some embodiments, the worm gear of engagement can be used for drive disk assembly 514.
In some embodiments, be provided with down blade protector 552, this time blade protector 552 is installed on the upper knife edge protector 550 or on the other parts of housing 502 movably, encapsulating the periphery of saw blade 530 fully, thereby prevents to contact with the accident of saw blade 530.Following blade protector 552 is set to: when instrument 500 is wanted cutting workpiece or base material, this blade protector can be from the bottom 519 and the below that is positioned at saw blade 530 peripheries of 519 belows, bottom recall.This time blade protector can be used for other embodiment disclosed herein.
Preferably, fan guard 544 seals with housing 502 basically, preventing housing 502 air outside (or extraneous granular materials) under near situation about at first not flowing to the saw blade 530, and be drawn in the fan guard 544 and volute component (volute) 540a by impeller.Fan guard 544 is set to contiguous upper knife edge protector 550.Between the internal volume of upper knife edge protector 550 and fan guard 544, be limited with the pressurization space 548 of sealing, be communicated with fluid between the internal volume that allows upper knife edge protector 550 and the fan guard 544.In some embodiments, the position of the leading edge 530a of close saw blade 530 is provided with preceding hole 554 on upper knife edge protector 550.In other embodiments, can on upper knife edge protector 550, the second hole 554a be set the position of the trailing edge 530b of close saw blade 530.
In the present embodiment, the rotary speed of impeller 540 is identical with the rotary speed of saw blade 530.In some embodiments, can change diameter and the blade of impeller 540 or the respective length of blade 541 of impeller 540, thereby change the mass flow (mass flowrate) of the air, dust and the chip that pass impeller 540, to be suitable for the rotary speed of saw blade 530.Be understandable that under the same rotary speed, bigger blade produces the bigger mass flow ratio of the air, dust and the chip that pass impeller 540 usually.
In some embodiments, floss hole 543 has improved flowing to storage container 546, this storage container 546 holds and keeps and is entrained in dust in air and the chip that flows through impeller 540, is discharged in the surrounding environment to prevent this dust and chip, allows air therefrom to flow through simultaneously.Storage container 546 can be the bag that removably is connected in floss hole 543, and this bag is set to keep dust and chip and allows air to flow through this bag.Storage container 546 can use threaded connector, a plurality of anchor clamps or tab or arbitrarily suitable detachable mechanical fastener well known in the art and remain on the floss hole 543.In other embodiments, rigid structure can removably be connected in floss hole 543, and this rigid structure is provided with a plurality of holes, and the size in this hole allows air to flow through, and retains simultaneously and is mixed in airborne most of dust and chip.Rigid structure 546 can use threaded connector, a plurality of anchor clamps or tab or arbitrarily suitable detachable mechanical fastener well known in the art and removably be connected in floss hole 543.Also can use extension hose, this extension hose provides the fluid with the collection container of aforesaid distant place (not shown, but be similar to container 154 among Fig. 6) to be communicated with.
Fig. 9 has shown the hand-held throw 600 of another embodiment.This instrument 600 comprises: support the also housing 602 of fixed electrical machinery 610, motor 610 has the motor shaft 612 that extends from this motor; Torque drive parts 614; Output shaft 618 and cutting tip 630.This cutting tip 630 can be similar to above-mentioned cutting tip 118.The part of cutting tip 630 extends through the blade hole on bottom or the base plate 619, and this base plate 619 is fixed in housing 602, and is the surface that instrument 600 contacts with base material that will cut or material.Housing 602 can comprise foregoing handle (not shown, but operation and location are similar to the handle 580 of Figure 12), and this handle allows user to move and operation tool 600 with singlehanded.
Cutting tip 630 is encapsulated in the blade protector 650 basically, and the major part of these blade protector 650 encapsulation cutting tips 630 peripheries also provides isolation in kind, to prevent the top and the sidepiece of the saw blade 630 that the unexpected contact of user is being rotated.Blade protector 650 also provides encapsulated space, and the most of dust and the chip that produce with cutting workpiece or base material the time are retained in blade protector 650 and the housing 602, thereby prevent that this dust and chip radially are discharged into the environment from saw blade.
In some embodiments, can be provided with the following blade protector on the other parts that are installed in upper knife edge protector 650 or housing 602 movably, encapsulating the periphery of saw blade 630 fully, thereby prevent and saw blade 630 unexpected contacts.This time blade protector can be similar to the following blade protector 552 that illustrates in the above-mentioned embodiment.
Preferably, fan guard 644 seals with housing 602 basically,, under near situation about at first not flowing to the cutting tip 630, be inhaled in the fan guard 644 with the air outside (or extraneous granular materials) that prevents housing 602, and the volute component 640a by impeller.
As shown in Figure 9, fan guard 644 and impeller 640 can be arranged on the motor 610 side relative with cutting tip 630, and perhaps in other embodiments, fan guard 644 and impeller 640 can be arranged on the motor 610 side identical with cutting tip 630.
Between the internal volume of upper knife edge protector 650 and fan guard 644, limit Packed pressurization space 648, be communicated with fluid between the internal volume that allows upper knife edge protector 650 and the fan guard 644.In some embodiments, the position of the leading edge 630a of close cutting tip 630 is provided with preceding hole 654 on upper knife edge protector 650.In other embodiments, can on upper knife edge protector 650, the second hole 654a be set the position of the trailing edge 630b of close cutting tip 630.
In some embodiments, floss hole 643 improves flowing to storage container, this storage container holds and keeps and is entrained in dust in air and the chip that flows through impeller 640, is discharged in the surrounding environment to prevent this dust and chip, allows air therefrom to flow through simultaneously.Storage container can be similar to above-mentioned storage container 546.In other embodiments, flexible pipe 647 can be connected in floss hole 643, to allow that air, dust and chip are moved to position at a distance from instrument 600.
Referring now to Figure 10, provide another kind of hand held electric tool 700.This instrument 700 comprises: support the also housing 702 of fixed electrical machinery 710, motor 710 has the motor shaft 712 that extends from this motor; Torque drive parts 714; Output shaft 718 and cutting tip 730.This cutting tip 730 is similar to above-mentioned cutting tip 118.The part of cutting tip 730 extends through the blade hole on bottom or the base plate 709, and this bottom or base plate 709 are fixed in housing 702, and are the surfaces that instrument 700 contacts with base material that will cut or material.Can be provided with handle (similar on operation and location) on the housing 702, move and operation tool 700 with singlehanded to allow the user with the above-mentioned handle 580 shown in Figure 12.
Cutting tip 730 is encapsulated in the blade protector 750 basically, and the major part of these blade protector 750 encapsulation cutting tips 730 peripheries also provides isolation in kind, to prevent the top and the sidepiece of the cutting tip 730 that the unexpected contact of user is being rotated.Blade protector 750 also provides encapsulated space, and the most of dust and the chip that produce with cutting workpiece or base material the time are retained in blade protector 750 and the housing 702, thereby prevent that this dust and chip radially are discharged into the environment from cutting tip 730.
In some embodiments, the following blade protector that is provided with on the other parts that are installed in upper knife edge protector 750 or housing 702 movably is (not shown, but be similar to down blade protector 552), encapsulating the periphery of cutting tip 730 fully, thereby prevent to contact with the accident of cutting tip 730.
In a kind of selectable embodiment shown in Figure 10 a, impeller 740 can rotatably be driven by impeller shaft 742a, and this impeller shaft 742a is finally driven by the motor shaft 712 that has the selectable second driving member 719a.This selectable second driving member 719a comprises the second output bevel gear 719d with input bevel gear 715 engagement of motor shaft 712.The second output bevel gear 719d can comprise the gear teeth that lack than the first output bevel gear 719c, and/or is formed with the diameter less than the first output bevel gear 719c, thereby makes impeller 740 to rotate than cutting tip 730 faster speed.
(and the dust that carries in the air and chip) walks around impeller 740.In some embodiments, fan guard 744 can form one with housing 702.In addition, the outer peripheral edges of impeller blade 741 and the space between the fan guard 744 being minimized has avoided air to flow along reciprocal by this space basically.
As shown in figure 10, fan guard 744 and impeller 740 can be arranged on the motor 710 side relative with cutting tip 730, perhaps in other embodiment shown in Figure 10 a, fan guard 744 and impeller 740 can be arranged on the motor 710 side identical with cutting tip 730.
Between the internal volume of upper knife edge protector 750 and fan guard 744, limit Packed pressurization space 748, be communicated with fluid between the internal volume that allows upper knife edge protector 750 and the fan guard 744.In some embodiments, the position of the leading edge 730a of close cutting tip 730 is provided with preceding hole 754 on upper knife edge protector 750.In other embodiments, can on upper knife edge protector 750, the second hole 754a be set the position of the trailing edge 730b of close cutting tip 730.
In some embodiments, floss hole 743 improves to flowing of storage container (not shown, but be similar to storage container 546), this storage container holds and keeps and is entrained in dust in air and the chip that flows through impeller 740, to prevent that this dust and chip are discharged in the surrounding environment, allow air therefrom to flow through simultaneously.
Another selectable embodiment of handheld rotary tool 400 is described with reference to Figure 13.This instrument 400 comprises: support the also housing 402 of fixed electrical machinery (not shown), motor has the motor shaft 412 that extends from this motor; Torque drive parts 414; Impeller shaft 418 and cutting tip 430.The part of cutting tip 430 extends through the blade hole on bottom or the base plate 419, and this bottom or base plate 419 are fixed in housing 402, and are the surfaces that instrument 400 contacts with base material 401 that will cut or material.
Motor can be by the single-phase or heterogeneous AC line current power supply that offers this motor by subsidiary electric wire, and perhaps in selectable embodiment, motor can be by DC battery (rechargeable battery or other type) power supply that is installed on the portable instrument 400.Housing 401 is provided with handle 408, carries and operation tool 400 with one hand to allow the user.The rotation of the operation of motor and final cutting tip 430 can be controlled by the trigger piece 409 or other operating mechanism that are installed on handle 408 or the housing 402.Handle 408 is arranged on the housing 402, is used to allow the user to move or carry with singlehanded.In some embodiments, trigger piece 409 comprises the interlock that can prevent to saw 400 accidental operation.As shown in figure 13, motor is arranged in the housing 402, make motor shaft 412 be parallel to impeller shaft 418 (impeller 440 relies on impeller shaft 418 rotations), motor shaft 412 rotatably is connected with impeller shaft 418, to transmit moment of torsion from motor shaft 412 to impeller shaft 418 by driving member 414.Cutting tip 430 is fixed on an end of motor shaft 412, to rotate with motor shaft 412.
In some embodiments, driving member 414 can be that tensioning is arranged on and is with 424 around belt pulley 414a, the 414b, and belt pulley 414a, 414b are separately positioned on the corresponding motor shaft 412 and impeller shaft 418.In other embodiments, can be by a plurality of spur gears of engagement or helical gear (not shown), to transmit moment of torsion to output shaft 418 from motor shaft 412.In these embodiments, the rotary speed of the impeller shaft 418 that the relative size of belt pulley 414a, 414b or input gear and output gear is designed to provide required based on the concrete rotating speed of motor shaft 412.
In some embodiments, impeller 440 can be arranged on motor shaft 412 or the output shaft 418 (as shown in figure 13), according to the position of impeller 440 and the gearratio between axle 412 and the axle 418, impeller 440 is to rotate with the proportional speed of the rotating speed of motor shaft 412.As mentioned above, the gearratio relative size that depends on belt pulley 414a, 414b be positioned at each on the relative number of teeth of meshing gear.
As above-mentioned embodiment; cutting tip 430 is arranged in the protector 450; should go up protector 450 is fixed on the housing 402; and for the major part around the accident contact cutting tip 430 provides protective isolator, and the chip that is produced during restriction cutting base material and dust radially or tangential direction around cutting tip 430 and sawtooth, radially send forth out.In some embodiments, be provided with the following blade protector on the other parts that are installed in upper knife edge protector 450 or housing 402 movably, encapsulating the periphery of cutting tip 430 fully, thereby prevent to contact with the accident of cutting tip 430.When instrument 400 is wanted cutting workpiece or base material, this time blade protector can be from the bottom 419 below and the below that is positioned at around the cutting tip 430 of 419 belows, bottom recall.
Be provided with the suction pressurization space between internal volume in last protector 450 and the fan guard 444, be communicated with to allow the fluid between this two parts volume.This suction pressurization space is set to be similar to above-mentioned suction pressurization space 548,648,748.On upper knife edge protector 450, can be provided with one or more holes, be communicated with to allow air, dust and chip 440 fluids from the cutting zone to the impeller.This hole and corresponding structure can form the similar structures that is similar to above-mentioned explanation.
In some embodiments, floss hole 443 is used to admit storage container or similar device, and this storage container or similar device receive from impeller 440 air discharged, dust and chip stream.The design of this storage container and operation can be similar to above-mentioned storage container 546.
Figure 14 provides another embodiment of handheld rotary tool 800.This instrument 800 comprises: support the also housing 802 of fixed electrical machinery 810, motor 810 has the motor shaft 812 that extends from this motor; Torque drive parts 814; Output shaft 818 and cutting tip 820.Cutting tip 820 and above-mentioned cutting tip 118 are similar.The part of cutting tip 820 extends through the blade hole on bottom or the base plate 819, and this bottom or base plate 819 are fixed (fixing movably or installation rigidly) in housing, and are the surfaces that instrument 800 contacts with base material that will cut or material.
Be parallel in the embodiment of cutting axle 818 at motor shaft 812, as shown in figure 14, driving member 814 between this diaxon can be the engages spur gears 816 that is limited to the pinion 815 on the motor shaft 812 and is connected in output shaft 818, perhaps driving member 814 can be spur gear or the band transmission complete as the engagement in the above-mentioned embodiment, allows motor shaft 812 to rotate with different speed with cutting axle 818.Motor shaft 812 perpendicular to cutting axle 818 or embodiment with respect to cutting axle 818 bevels in, driving member 814 can be bevel gear, hypoid gear or the worm gear of one group of perpendicular, permission is 818 variations that torque direction take place from motor shaft 812 to output shaft, also allow to become from the rotary speed of motor shaft 812 rotary speed of output shaft 818 in addition.
Cutting tip 820 is encapsulated in the blade protector 850 basically, and the major part of these blade protector 850 encapsulation cutting tips 820 peripheries also provides isolation in kind, to prevent the top and the sidepiece of the cutting tip 820 that the unexpected contact of user is being rotated.Blade protector 850 also provides seal cavity or pressurization space 853, the most of dust and the chip that produce with cutting workpiece or base material the time are stayed in blade protector 850 and the housing 802, thereby prevent that this dust and chip radially are discharged into the environment from cutting tip 820.
In some embodiments, can be provided with the following blade protector on the other parts that are installed in upper knife edge protector 850 or housing 802 movably, encapsulating the periphery of cutting tip 820 fully, thereby prevent and cutting tip 820 unexpected contacts.Following blade protector can be similar to the following blade protector 552 in the above-mentioned embodiment.
In some embodiments, floss hole 843 has promoted flowing to storage container, this storage container holds and keeps dust in air and the chip that is entrained in first vane group 841 that flows through impeller 840, is discharged in the surrounding environment to prevent this dust and chip, allows air therefrom to flow through simultaneously.Storage container can be similar to above-mentioned storage container 546.In other embodiments, flexible pipe can be connected in floss hole 843, to allow that air, dust and chip are moved on to position far away from instrument 800.
Should be clear and definite be compared with prior art, to provide a plurality of advantages in the preferred implementation of this explanation.Disclosed instrument can form in light weight, easy to carry and be easy to user's operation, with the cutting any materials.The base material (as cement plate or drywall) that is easy to produce a large amount of dusts and other showy particle can be by using this instrument, and handled well and ambient atmosphere is discharged minimum above-mentioned particle.
Claims (53)
1. portable hand-held tool, this portable hand-held tool comprises:
Housing;
Handle, this handle extends from described housing, and is set to by the user with grasped and allow moving and operation of described portable hand-held tool;
Motor, this motor has motor shaft;
Impeller, this impeller axially are installed in first end of described motor shaft, are used for rotating around first axle with first rotary speed;
Cutting tip, this cutting tip is installed in second end of described motor shaft, be used for rotating simultaneously around second axis with second rotary speed, wherein, described second axis is set to transverse to described first axle, and wherein, described impeller can promote by described cutting tip on base material operation and the particle that produces; And
Base plate, this base plate is connected in described housing, and is set to be slidingly matched with described base material in the operating process of described cutting tip.
2. portable hand-held tool according to claim 1, wherein, described motor comprises having the first relative end and the central shaft of second end, and first end of this central shaft is configured such that the impeller rotation, thereby makes described first rotary speed be substantially equal to the rotary speed of this central shaft.
3. portable hand-held tool according to claim 1, this portable hand-held tool also comprises the gear assembly between the central shaft that is connected in described motor and select from described impeller or described cutting tip, this gear assembly is configured such that one rotary speed in described impeller or the described cutting tip is different from the rotary speed of described central shaft.
4. portable hand-held tool according to claim 3, wherein, described first rotary speed is about the twice of described second rotary speed.
5. portable hand-held tool according to claim 1, this portable hand-held tool also comprises the lid that is connected in described housing, described cutting tip is arranged in the described lid, described lid forms pressurization space, and this pressurization space is crossed the top of described cutting tip and is set to and moves to described impeller from described cutting tip for particle.
6. portable hand-held tool according to claim 5, this portable hand-held tool also are included in conduit that fluid is communicated with between described pressurization space and the described impeller and the collection assembly that is connected in described housing.
7. portable hand-held tool according to claim 1, wherein, described cutting tip is around the rotation of cutting tip rotation, and the impeller rotating shaft line that this cutting tip rotation is set to be centered on described impeller rotation roughly becomes 90 °.
8. portable hand-held tool according to claim 1, wherein, the position of described base plate can be regulated with respect to described motor, to change the amount that described cutting tip extends through the slit on the described base plate.
9. portable hand-held tool according to claim 1, wherein, described base plate is connected in described housing movably.
10. portable hand-held tool according to claim 5, this portable hand-held tool also comprises first port and second port that is limited in the described lid, described first port is near the leading edge of described cutting tip, described second port is near the trailing edge of described cutting tip, wherein, described first port and second port move to described impeller from described cutting tip for particle.
11. portable hand-held tool according to claim 1, wherein, described impeller comprises first vane group and second vane group, described first vane group can impel by described cutting tip on base material operation and the particle that produces enters into collection assembly, described second vane group is set to impel air stream to cross described motor.
12. portable hand-held tool according to claim 11, wherein, described housing comprises the raceway groove that is limited in this housing and holds the part of described impeller, and this raceway groove is set to stop basically the fluid between described first vane group and described second vane group to be communicated with.
13. a portable hand-held tool, this portable hand-held tool comprises:
Housing with handle, this handle extends and is set to use grasped by the user from described housing, to allow moving and operating of described portable hand-held tool;
Displaceable member, this displaceable member are set to operate and produce thus granular materials on base material;
Pressurization space, this pressurization space is close to described displaceable member and extends along periphery;
First port and second port, this first port and second port limit the opposite end of described pressurization space respectively; And
Be rotatably installed in the impeller in the described housing, this impeller is respectively to described first port with second port is exerted pressure and be set to impel described granular materials away from described displaceable member,
Wherein, described displaceable member and described impeller are all finally by described motor shaft rotation.
14. portable hand-held tool according to claim 13, this portable hand-held tool also comprises around described displaceable member and is connected in the cap assemblies of described housing, and described pressurization space is defined as between the inner surface of described displaceable member and described cap assemblies along the gap that periphery extends.
15. portable hand-held tool according to claim 13, wherein, described displaceable member comprises blade, the described base material of this blade rotary cutting.
16. portable hand-held tool according to claim 15, wherein, the leading edge location of the contiguous described displaceable member of described first port, thus impel by described displaceable member on described base material operation and at least a portion in the particle that produces enters in described first port.
17. portable hand-held tool according to claim 16, wherein, the trailing edge location of the contiguous described displaceable member of described second port, thus make the major part described pressurization space of process in the described particle of walking around described first port and enter described second port.
18. portable hand-held tool according to claim 13, this portable hand-held tool also comprise first conduit and second conduit that is communicated with described first port and the described second port fluid respectively, this first conduit and second conduit are joined in the junction.
19. portable hand-held tool according to claim 18, this portable hand-held tool also comprises the common conduit that extends to pressure source from described junction.
20. portable hand-held tool according to claim 13, wherein, described displaceable member all rotates by described motor-driven and with different separately rotary speeies with pressure source.
21. portable hand-held tool according to claim 13, this portable hand-held tool also comprise the discharge tube that extends from pressure source, this discharge tube is set to discharge the described granular materials of removing from described base material.
22. portable hand-held tool according to claim 13, this portable hand-held tool also comprises the collection chamber of the floss hole that removably is connected in pressure source.
23. portable hand-held tool according to claim 21, wherein, described discharge tube extends between described pressure source and the remote chip collection assembly that is provided with.
24. portable hand-held tool according to claim 23, wherein, described pressure source rotates around first axle, and described displaceable member rotates around second axis, and wherein, this first axle is vertical mutually basically with second axis.
25. portable hand-held tool according to claim 13, wherein, pressure source comprises first vane group and second vane group, described first vane group can impel by described cutting tip on base material operation and the particle that produces enters into collection assembly, described second vane group is set to impel air stream to cross described motor.
26. portable hand-held tool according to claim 25, wherein, described housing comprises the raceway groove that is limited in this housing and holds the part of described impeller, and this raceway groove is set to stop basically the fluid between described first vane group and described second vane group to be communicated with.
27. a portable hand-held tool, this portable hand-held tool comprises:
The housing that has handle, this handle are set to hold for the user;
The motor that has motor shaft;
Rotatably be connected in the output shaft of described motor shaft;
Cutting tip, this cutting tip rotatably are fixed on the described output shaft and are encapsulated in basically in the blade protector;
Impeller, this impeller are rotatably installed in described motor shaft or the output shaft one and go up and be encapsulated in basically in the fan guard that is connected in described housing:
Pressurization space, this pressurization space are set to provide the sealed fluid flow between described blade protector and the described fan guard to be communicated with, and are limited with the hole that is communicated with described pressurization space fluid on the described blade protector; And
Base plate, this base plate are connected in described housing and are set to and be slidingly matched with base material in the operating process of described cutting tip.
28. portable hand-held tool according to claim 27, wherein, described hole is arranged on the described blade protector and the leading edge of approaching described cutting tip.
Be arranged on the described blade protector and second hole of the trailing edge of approaching described cutting tip 29. portable hand-held tool according to claim 28, this portable hand-held tool also comprise.
30. portable hand-held tool according to claim 29, wherein, described pressurization space comprises first leg-shape part and second leg-shape part, described first leg-shape part is set to provide the fluid between described hole and the described impeller to be communicated with, and described second leg-shape part is set to provide the fluid between described second hole and the described impeller to be communicated with.
31. portable hand-held tool according to claim 30, wherein, described first leg-shape part and described second leg-shape part intersect at the crotch that is communicated with the volute component fluid of described impeller.
32. portable hand-held tool according to claim 27, wherein, described fan guard and described housing form one.
33. portable hand-held tool according to claim 27, wherein, described impeller comprises floss hole, and described fan guard comprises discharge port.
34. portable hand-held tool according to claim 33, wherein, described discharge port is set to tangent with the outer peripheral edges of described impeller basically.
35. portable hand-held tool according to claim 33, this portable hand-held tool also comprises the storage container that can removably be connected with described discharge port, this storage container is set to hold and keep dust and the chip that flows through described impeller, and the air that allows wherein to hold flows through.
36. portable hand-held tool according to claim 27, wherein, described output shaft is set to vertical with described motor shaft basically.
37. portable hand-held tool according to claim 27, wherein, described output shaft is set to parallel with described motor shaft basically.
38. according to the described portable hand-held tool of claim 37, this portable hand-held tool also comprises driving member, this driving member rotatably connects described motor shaft and described output shaft, and is set to transmit moment of torsion from described motor shaft to described output shaft.
39. according to the described portable hand-held tool of claim 38, wherein, described driving member is the band of each setting in described motor shaft and described output shaft.
40. according to the described portable hand-held tool of claim 38, wherein, described driving member is the input bevel gear and the output bevel gear that is positioned on the described output shaft that is positioned on the described motor shaft.
41. according to the described portable hand-held tool of claim 40, wherein, impeller shaft comprises the second output bevel gear with the engagement of described input bevel gear.
42. portable hand-held tool according to claim 27, wherein, described impeller is installed on the described output shaft and approaching described cutting tip.
43. according to the described portable hand-held tool of claim 42, wherein, described impeller and described cutting tip are installed in the homonymy of described motor shaft.
44. portable hand-held tool according to claim 27, wherein, described blade protector limits the part of described pressurization space.
45. portable hand-held tool according to claim 27, wherein, described impeller and described cutting tip are installed in respectively on the opposite end of described motor shaft.
46. according to the described portable hand-held tool of claim 38, this portable hand-held tool also comprises second driving member that rotatably connects described motor shaft and impeller shaft.
47. according to the described portable hand-held tool of claim 46, wherein, described driving member and described second driving member rotatably are connected on the opposite end of described motor shaft respectively.
48. according to the described portable hand-held tool of claim 46, wherein, described second driving member is the meshed gears group.
49. according to the described portable hand-held tool of claim 44, wherein, described base plate is connected in described housing movably.
50., wherein, be limited with on the described blade protector near the hole of the leading edge of described cutting tip with near second hole of the trailing edge of described cutting tip according to the described portable hand-held tool of claim 44.
51. portable hand-held tool according to claim 27, wherein, described impeller comprises first vane group and second vane group, described first vane group can impel by described cutting tip on base material operation and the particle that produces enters into collection assembly, described second vane group is set to impel air stream to cross described motor.
52. according to the described portable hand-held tool of claim 51, wherein, described housing comprises the raceway groove that is limited in this housing and holds the part of described impeller, and this raceway groove is set to stop basically the fluid between described first vane group and described second vane group to be communicated with.
53. a portable hand-held tool, this portable hand-held tool comprises:
Housing;
From the handle that described housing extends, this handle is set to by the user with grasped and allow moving and operation of this portable hand-held tool;
The motor that has motor shaft;
Impeller, this impeller axially are installed in first end of described motor shaft, are used for rotating around first axle with first rotary speed;
Cutting tip, this cutting tip is installed in second end of described motor shaft, be used for rotating around second axis with second rotary speed, wherein, described second axis is set to transverse to described first axle, wherein, described impeller can impel by described cutting tip on base material operation and the particle that produces enters into collection assembly;
Base plate, this base plate is connected in described housing, and is set to be slidingly matched with described base material in the operating process of described cutting tip;
Pressurization space, the contiguous described cutting tip of this pressurization space extends along periphery; And
First port and second port, this first port and second port limit the opposite end of described pressurization space respectively, and this first port and described second port all are communicated with described impeller fluid.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US83044906P | 2006-07-13 | 2006-07-13 | |
| US60/830,449 | 2006-07-13 | ||
| US60/876,747 | 2006-12-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101505899A true CN101505899A (en) | 2009-08-12 |
Family
ID=40977622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007800266287A Pending CN101505899A (en) | 2006-07-13 | 2007-07-12 | Portable power tool for cutting concrete board and other substrates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101505899A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102490162A (en) * | 2011-12-14 | 2012-06-13 | 江苏金飞达电动工具有限公司 | Dust suction device for electric cutting tool |
| CN102713068A (en) * | 2009-12-03 | 2012-10-03 | 塞母布雷有限公司 | Apparatus for the tooling of a workpiece |
| CN103894676A (en) * | 2012-12-28 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Sawing machine and automatic dust absorption system applied to same |
| WO2018084771A1 (en) * | 2016-11-03 | 2018-05-11 | Husqvarna Ab | An engine-driven tool with a generator connected to a fan motor |
| EP3535083A4 (en) * | 2016-11-03 | 2020-06-24 | Husqvarna AB | A dust removal arrangement for an engine-driven tool |
| CN111940816A (en) * | 2020-07-23 | 2020-11-17 | 安徽简木智能家居有限公司 | Cutting device is used in processing of stainless steel goods |
| CN113442234A (en) * | 2021-07-16 | 2021-09-28 | 浙江汉固达网络信息技术有限公司 | Electric planer and wood planing method thereof |
| CN115835927A (en) * | 2020-07-15 | 2023-03-21 | 工机控股株式会社 | Working machine |
| CN116021084A (en) * | 2023-02-16 | 2023-04-28 | 江苏昊锐电气科技有限公司 | Protection cutting device for support parts |
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- 2007-07-12 CN CNA2007800266287A patent/CN101505899A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102713068A (en) * | 2009-12-03 | 2012-10-03 | 塞母布雷有限公司 | Apparatus for the tooling of a workpiece |
| CN102713068B (en) * | 2009-12-03 | 2014-11-12 | 塞母布雷有限公司 | Apparatus for the tooling of a workpiece |
| CN102490162A (en) * | 2011-12-14 | 2012-06-13 | 江苏金飞达电动工具有限公司 | Dust suction device for electric cutting tool |
| CN103894676A (en) * | 2012-12-28 | 2014-07-02 | 苏州宝时得电动工具有限公司 | Sawing machine and automatic dust absorption system applied to same |
| WO2018084771A1 (en) * | 2016-11-03 | 2018-05-11 | Husqvarna Ab | An engine-driven tool with a generator connected to a fan motor |
| EP3535083A4 (en) * | 2016-11-03 | 2020-06-24 | Husqvarna AB | A dust removal arrangement for an engine-driven tool |
| US11059114B2 (en) | 2016-11-03 | 2021-07-13 | Husqvarna Ab | Dust removal arrangement for an engine-driven tool |
| US11400531B2 (en) | 2016-11-03 | 2022-08-02 | Husqvarna Ab | Dust removal arrangement for an engine-driven tool |
| CN115835927A (en) * | 2020-07-15 | 2023-03-21 | 工机控股株式会社 | Working machine |
| CN111940816A (en) * | 2020-07-23 | 2020-11-17 | 安徽简木智能家居有限公司 | Cutting device is used in processing of stainless steel goods |
| CN113442234A (en) * | 2021-07-16 | 2021-09-28 | 浙江汉固达网络信息技术有限公司 | Electric planer and wood planing method thereof |
| CN116021084A (en) * | 2023-02-16 | 2023-04-28 | 江苏昊锐电气科技有限公司 | Protection cutting device for support parts |
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Owner name: TECHTRONIC MOTOR TOOLS TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: TECHTRONIC INDUSTRY CO., LTD. Effective date: 20100608 |
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Free format text: CORRECT: ADDRESS; FROM: FLOOR 24, CHINA DYEING HOLDIND BUILDING, NO.388, CASTLE PEAK ROAD, TSUEN WAN DISTRICT, HONGKONG, CHINA TO: TORTOLA, VIRGIN ISLANDS, THE UNITED KINGDOM |
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Application publication date: 20090812 |