CN202137453U - Portable cutting tool - Google Patents
Portable cutting tool Download PDFInfo
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- CN202137453U CN202137453U CN201120125108U CN201120125108U CN202137453U CN 202137453 U CN202137453 U CN 202137453U CN 201120125108 U CN201120125108 U CN 201120125108U CN 201120125108 U CN201120125108 U CN 201120125108U CN 202137453 U CN202137453 U CN 202137453U
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Abstract
A portable cutting tool comprises a cutting blade, a motor, a motor cover and a base. A cut workpiece is cut by the cutting blade, the motor drives the cutting blade and is covered by the motor cover, an air inlet and an air outlet are arranged on the motor cover, a fan which sucks air from the air inlet and exhausts air via the air outlet is further disposed in the motor cover, the base is platy and consists of a lower surface and an upper surface, the lower surface of the base is abutted to the cut workpiece, the motor and the motor cover are mounted on the upper surface of the base, an opening which penetrates through the upper surface and the lower surface of the base is arranged on the base, the cutting blade partially penetrates through the opening, and the base further consists of a cleaning air flow channel which runs from the air outlet to an uncut area of the upper surface of the workpiece at the front of a cutting area of the workpiece. The portable cutting tool can efficiently clean the cutting area on the workpiece.
Description
Technical field
The utility model relates to a kind of can the blowing forward so that clear up smear metal or the portable cutting tool of dust on the uncut workpiece surface zone, cutting zone the place ahead from the pedestal leading edge.
Background technology
Existing various portable cutting tools are used for workpiece or material are cut.Usually, the operator can draw line of cut or mark on workpiece to be cut, with indication cutting position and track.When cutting operation, cutting blade rotates and advances along line of cut.Yet, behind the line of cut that draws on the workpiece, can fall to going up smear metal or dust sometimes; Simultaneously, in cutting operation, new smear metal or the dust that produces also may drop on the line of cut.These smear metals or dust can cover line of cut.Whether this causes the operator can not be clear that line of cut, thereby be not sure of cutting blade and be positioned on the line of cut at the cut point on the workpiece, and can not guarantee that the trend of cutting blade does not depart from the predetermined cuts line.
For fear of this problem, some portable cutting tool utilizes air cleaning system to clean out foreign matters such as smear metal and dust on the uncut workpiece surface zone, cutting zone the place ahead.
For example, the air that the portable cutting tool utilization that has is discharged by the air outlet of motor shell is directly cleared up the not cutting surface area on the workpiece.This air-flow without guiding can't not carry out efficiently cutting surface area, cleaning accurately.
Different therewith; Disclose a kind of portable electric cutting tool among the US2005160608A1, the cover member that its utilization is loaded on the complicated shape on the blade shroud is formed on guard shield outside cleaning air flow passage to the cutting position guide blow air that is positioned at the pedestal leading edge.CN1751832A discloses a kind of cutting machine, and it installs grey dust hood on top, sawtooth chamber, in grey dust hood, forms and the separated control of dust path of sawtooth.Because in the portable cutting tool; Most of functional parts such as saw blade, blade shroud, motor, motor cover all are to be carried by angular adjustment frame and depth adjustment frame; Therefore in the blade shroud inboard or exterior configuration cleaning air flow passage; Can increase the load of angular adjustment frame and depth adjustment frame undoubtedly, and this can cause a series of problems, for example cause the cutting angle of cutting blade incorrect or the like because of the distortion of angular adjustment frame and depth adjustment frame.
A kind of portable electric cutting tool is disclosed among the US2005262706A1; It has from being suitable for being cut the air flow groove that pedestal opening that blade passes is offered towards the pedestal leading edge; Air-flow from motor cover gets in the pedestal opening, is blown into the pedestal leading edge through said air flow groove then.Have only very that fraction can get in this air flow groove owing to get into air-flow the pedestal opening from motor cover, it is very limited therefore to be blown into the air capacity of pedestal leading edge through said air flow groove, is difficult to not clear up cutting surface area efficiently.
Therefore, hope can solve the problems referred to above that exist in the prior art.
The utility model content
The purpose of the utility model is to solve the problem that portable cutting tool can't efficiently be cleared up uncut workpiece surface zone, cutting zone the place ahead.
For this reason, the utility model provides a kind of portable cutting tool, and it comprises: cutting is cut the cutting blade of workpiece; Drive the motor of said cutting blade; Cover covers the motor cover of said motor, offers air intlet and air outlet slit on the motor cover, also includes the fan that sucks air and air is discharged from said air outlet slit from said air intlet in the motor cover; And pedestal, be tabular, comprise that pedestal is provided with the opening that runs through upper surface and lower surface against lower surface that is cut workpiece and upper surface that said motor and motor cover are installed, said cutting blade partly passes this opening; It is characterized in that said pedestal comprises the cleaning air flow passage of leading to uncut workpiece surface zone, cutting zone the place ahead from said air outlet slit.
According to a kind of preferred implementation of the utility model, said cleaning air flow passage is formed by the air flow guide that is installed on the pedestal, and said air flow guide has the air receiving port corresponding with said air outlet slit.
A kind of preferred implementation according to the utility model; Two sidewalls that said air flow guide has roof and extends from roof; And the sealing and fixing of said air flow guide is on the upper surface of pedestal; Part upper surface by pedestal serves as the diapire of clearing up air flow passage, and said cleaning air flow passage is limited between the upper surface of roof and sidewall and pedestal of said air flow guide.
According to a kind of preferred implementation of the utility model, said air flow guide have roof, diapire and extend in roof and diapire between two sidewalls, said cleaning air flow passage is limited between roof, sidewall and the diapire of said air flow guide.
According to a kind of preferred implementation of the utility model, said cleaning air flow passage is formed by the air-flow gathering sill of offering in the pedestal, and said air-flow gathering sill has the air receiving port corresponding with said air outlet slit.
A kind of preferred implementation according to the utility model; Said pedestal limits the roof face of air-flow gathering sill and two side wall surfaces that extend from the roof face; And the bottom side of air-flow gathering sill is open; Serve as the diapire of said cleaning air flow passage by the part upper surface of workpiece, said cleaning air flow passage is limited between the upper surface of roof face and side wall surface and workpiece of pedestal.
A kind of preferred implementation according to the utility model; Said pedestal limits roof face, the diapire face of air-flow gathering sill and two side wall surfaces that between roof face and diapire face, extend, and said cleaning air flow passage is limited between roof face, diapire face and the side wall surface of pedestal.
According to a kind of preferred implementation of the utility model, said air flow guide or air-flow gathering sill comprise: the air receiver section that is communicated with the air outlet slit of motor cover, said air receiving port are formed in the said air receiver section; Be located at the air ejection section at intersection point place between the plane, pedestal leading edge and cutting blade place; And be connected the changeover portion between air receiver section and air ejection section.
According to a kind of preferred implementation of the utility model, said portable cutting tool also comprises the guard shield that covers cutting blade top, and said motor cover links to each other with said guard shield, and said air outlet slit is arranged on the bottom of the perisporium that links to each other with said guard shield of motor cover.
According to a kind of preferred implementation of the utility model, said portable cutting tool is an annular saw.
Portable cutting tool according to the utility model; Because the pedestal of cutting tool is provided with the cleaning air flow passage of air-flow from uncut workpiece surface zone, motor cover guiding cutting zone the place ahead; Therefore the air-flow of motor fan generation is collected fully and is being guided and is discharged into uncut workpiece surface zone, cutting zone the place ahead, thereby can in cutting operation process, efficiently clear up the whole zone that will cut on the workpiece surface.
In addition,, need on the cutting element upper shroud, not add any additional parts that is used to realize clearing up air flow passage, therefore can not increase the load of angular adjustment frame and depth adjustment frame according to the portable cutting tool of the utility model.Like this, can improve the positioning accuracy of cutting blade, reduce the cost of whole cutting tool.
Therefore, the utility model provides a kind of selection that is highly profitable for the user.
Description of drawings
Fig. 1 be portable cutting tool according to an embodiment of the utility model when workpiece is cut from above the perspective view done;
Fig. 2 is the schematic cross sectional views of cutting tool shown in Figure 1, has shown cleaning air flow passage wherein;
Fig. 3 is the perspective view of the pedestal of cutting tool shown in Figure 1, has shown the air flow guide that forms the cleaning air flow passage;
Fig. 4 is the perspective view of the air flow guide among Fig. 3;
Fig. 5 is the schematic cross sectional views according to the portable cutting tool of another embodiment of the utility model, has shown cleaning air flow passage wherein;
Fig. 6 is the perspective view that cutting tool shown in Figure 5 is done from the bottom side, has shown the air-flow gathering sill that forms the cleaning air flow passage.
The specific embodiment
Can dry forward so that clear up the portable cutting tool in the whole zone that will cut on the workpiece surface from the pedestal leading edge according to the preferred implementation of the utility model described with reference to the accompanying drawings.
The related portable cutting tool of the utility model can be the various instruments that workpiece is cut, for example annular saw, stone material cutter etc.Here, " workpiece " but be meant any bulk or tabular cutting material, for example timber, plastics, glass, metal or the like.
Cutting tool can be the band power line, so that utilize external power supply to carry out work; Also can be not to be with power line, thereby utilize self battery (for example rechargeable battery) to carry out work.
As shown in Figure 1, the portable cutting tool of example is an annular saw, and it comprises pedestal 3, this pedestal preferably by robust material for example metal process.In the embodiment shown in the figure, pedestal 3 is the form of essentially rectangular plate.Certainly, the pedestal of other shape also is feasible.
Cutting tool also comprises motor cover 2 and is installed in the upper shroud 1 on the motor cover 2.The CD-ROM drive motor (not shown) is housed in motor cover 2.This motor itself has the cooling fan (not shown), is used for cooling motor.
Cutting tool comprises also by motor and is driving the cutting blade 5 of making cutting movement that it can be a for example saw blade of rotating blade, it will be appreciated, of course, that cutting blade also can be to move back and forth blade or the blade that can rotate and move back and forth simultaneously.
The part of the bottom of cutting blade 5 is passed opening 16 (see figure 3)s in the pedestal 3, and exposes from the basal surface of pedestal, so that in the incision workpiece.
Cutting tool also comprises the bottom guard shield 6 that covers cutting blade 5 bottoms.
When cutting operation, bottom guard shield 6 is cut the workpiece pushing and pressing and in upper shroud 1, rotates, to expose the bottom of cutting blade 5 gradually.
In addition, be provided with the maintenance bar in the upper shroud 1, be used for bottom guard shield 6 is remained on upper shroud 1.Like this, at non-cutting operation state, bottom guard shield 6 can be by hand-turned in upper shroud 1 and be maintained at wherein, thus the bottom of exposing cutting blade 5.
The top of cutting blade 5 is covered by upper shroud 1 all the time, thereby in cutting operation, prevents to be flown out and injure the operator by the smear metal that blade is taken out of.
Cutting tool also comprises angular adjustment frame 4 that is installed on pedestal 3 front portions and the depth adjustment frame 9 (referring to Fig. 3) that is installed on pedestal 3 rear portions.
The front end of upper shroud 1 is connected with angular adjustment frame 4 so that the connected mode of pivot is pivotable, and upper shroud 1 can be that rotate along depth adjustment frame 9 in the center of circle with above-mentioned pivot axis.Through regulating the rotation of above-mentioned upper shroud 1 and depth adjustment frame 9, regulate the also depth of cut of fixed cutting blade 5.
By angular adjustment frame 4, can make cutting blade swing with respect to pedestal 3 around the axis of oscillation that is parallel to cutting direction of advance F, can regulate the angle of inclination of cutting blade 5 thus.Usually, cutting blade is perpendicular to pedestal 3, and promptly blade is perpendicular in the workpiece surface incision workpiece.Yet; Sometimes need blade to cut in the workpiece at angle with respect to workpiece surface; This moment, angular adjustment frame capable of using 4 was set in the angle of inclination with respect to pedestal 3 with cutting blade; Then, utilize the lock-button locking on the angular adjustment frame 4, confirmed the angle of inclination of cutting blade thus.
This angular adjustment frame and depth adjustment frame are as known in the art, are not described further here.
Be equipped with on the motor cover 2 or be formed with operating grip 8.By means of this operating grip 8, can control cutting tool and carry out cutting operation.
In operation, cutting blade has such direction of rotation usually, and promptly the leading edge (sawtooth) of cutting blade on cutting direction of advance F shifts out from workpiece and upwards move in the upper shroud 1.Certainly, the utility model is not got rid of the situation of cutting blade along opposite direction rotation yet, promptly in leading edge (sawtooth) the incision workpiece of cutting blade on the cutting direction of advance.No matter which kind of situation can be called cut point or cutting zone with the intersection point of cutting blade between the upper surface of leading edge (sawtooth) on the cutting direction of advance and workpiece.
Usually, the operator can draw predetermined cuts line 12 or make cut mark on the upper surface of workpiece 10, with indication cutting position and track.Before cutting operation; The operator aims at the predetermined cuts line with the leading edge of cutting blade 5 or the cutting indicator on the leading edge of pedestal 3 forms such as (for example) breach; Start cutting tool cutting then, and in cutting operation, need to keep cutting blade to advance along the predetermined cuts line.
Yet, before cutting, the dust or the smear metal that possibly fall to haveing been friends in the past on the workpiece 10, and also possibly have smear metal or dust in the cutting process and drop on the not cutting surface area that comprises predetermined cuts line 12.Like this, the predetermined cuts line that is positioned at cut point the place ahead can be covered by foreign matters such as smear metal, dust 14.
Align the predetermined cuts line in order before cutting, to make the blade leading edge or to cut indicator, and in cutting process, correctly follow the predetermined cuts line, need make the operator can be clear that the predetermined cuts line part in the place ahead all the time.For this reason, cleaning out foreign matters 14 such as the smear metal that is covered with on the whole predetermined cuts line that will cut, dust, is necessary.
According to the utility model, cutting tool is provided with the cleaning air flow passage of leading to pedestal leading edge the place ahead, and wherein the air-flow from motor cover 2 is directed on the uncut workpiece surface zone, cutting zone the place ahead, so that clear up the foreign matter on this surface area.
As previously mentioned, the motor in the motor cover 2 itself has cooling fan, is used for cooling motor.In order to form the air-flow of cooling motor, motor cover 2 has air intlet 22.
In example shown in Figure 1, air intlet 22 be formed on motor cover 2 on the end face of upper shroud 1, yet air intlet also can be formed on the motor cover sidewall adjacent with this end face.In addition, air intlet can adopt different shape, for example illustrated shape of slit, grille-like, shapes such as circle, ellipse, rectangular opening.
According to the utility model,, offered air outlet slit 24 (referring to Fig. 2,5) towards pedestal 3 in the bottom of the adjacent sidewall of motor cover 2 and upper shroud 1.
Except air intlet 22 and air outlet slit 24 were sentenced, all the other positions of motor cover 2 were all sealed.That is to say that the air that is used for cooling motor can only get into motor cover 2 and discharge motor cover 2 from air outlet slit 24 from air intlet 22.
For the air guide pedestal leading edge the place ahead that will be discharged by air outlet slit 24, the pedestal 3 of the utility model is provided with the cleaning air flow passage.This cleaning air flow passage is extended along pedestal 3, from air outlet slit 24 beginnings, leads to uncut workpiece surface zone, cutting zone the place ahead (intersection point front between pedestal leading edge and the plane, cutting blade place).
The example of the concrete structure that constitutes this cleaning air flow passage is described below.These examples only are exemplary, and nonrestrictive.
Referring to Fig. 1-4,, utilize air flow guide 30 to form the cleaning air flow passage according to an embodiment of the utility model.
This air flow guide 30 is elongated tube-like pieces, installs along the upper surface of pedestal 3.In embodiment illustrated, air flow guide 30 comprises roof and two sidewalls, and the bottom side is opened wide.Like this, be assembled on the upper surface of pedestal 3 when air flow guide 30 after, referring to Fig. 3, limit the cleaning air flow passage between the upper surface of the roof of air flow guide 30 and sidewall and pedestal 3.Sealed between two sidewalls of air flow guide 30 and the upper surface of pedestal 3, leaked to avoid air.
Certainly, air flow guide 30 also can have diapire, like this, just limits the cleaning air flow passage in the air flow guide 30 itself, so just needn't between the upper surface of air flow guide 30 and pedestal 3, seal.
In embodiment illustrated; Air flow guide 30 comprises from air outlet slit 24 beginnings of motor cover 2 cuts the air receiver section 32 that direction of advance is extended along being parallel to; The air ejection section 36 that extend along the cutting direction of advance at the intersection point place between pedestal leading edge and plane, cutting blade place, and be connected the changeover portion 34 between air receiver section 32 and air ejection section 36.
The cleaning air outlet slit that the workpiece surface zone of air ejection section 36 formation intersection point front between pedestal leading edge and plane, cutting blade place is offered.
Because air ejection section 36 roughly is arranged in plane, cutting blade place; And air receiver section 32 is positioned at the lateral attitude (promptly from cutting blade belong to plane bias) corresponding with the bottom air of motor cover 2 outlet 24; Therefore; Air ejection section 36 and air receiver section 32 are lateral alternates each other, and changeover portion 34 and cutting direction of advance are connected between air receiver section 32 and the air ejection sections 36 at angle.
The cross sectional dimensions and/or the shape of air ejection section 36 and air receiver section 32 can differ from one another.For example, the width in the cross section of air ejection section 36 is greater than air receiver section 32.Changeover portion 34 has been realized cross sectional dimensions and/or the shape variation between air ejection section 36 and the air receiver section 32.
These sections of air flow guide 30 have been clearly illustrated among Fig. 4.It may be noted that in embodiment illustrated in the cross section perpendicular to air flow guide 30 bearing of trends, each section of air flow guide 30 all is essentially rectangular.Certainly, the cross section of other shape also is feasible.
The part of the roof of air receiver section 32 rear end of air receiver section 32 (for example) is opened wide, so that form the air receiving port 35 of and connection corresponding with the air outlet slit of motor cover 2 24.Consider that when the depth of cut of cutting blade and angle of inclination are conditioned motor cover 2 can be along with upper shroud 1 moves, thereby air outlet slit 24 can be mobile with laterally 35 about with respect to the air receiving port.The size and dimension of air receiving port 35 and air outlet slit 24 should be arranged to be adapted to this of air outlet slit 24 and move.For example the horizontal and vertical size of air receiving port 35 is all fully greater than the corresponding size of air outlet slit 24.Alternatively, the perisporium of air outlet slit 24 is limited elastomeric material, so that in the process that air outlet slit 24 moves with respect to air receiving port 35, the elasticity perisporium of air outlet slit 24 always forms the air duct that docks with air receiving port 35.
Like this, air flow guide 30 has formed the cleaning air flow passage of air from uncut workpiece surface zone, motor cover 2 guiding cutting zone the place ahead.Particularly; When cutter sweep is operated; Motor fan rotation and air is sucked motor cover 2 from air intlet 22, air flow through motor cover 2 the inner space and motor is cooled off, direction gets in the air receiving port 35 of air flow guide 30 shown in the arrow then from air outlet slit 24 along Fig. 2; And in the cleaning air flow passage that air flow guide 30 limits, flow, the final cleaning air outlet slit that forms from the air ejection section 36 of air flow guide 30 blows out.Shown in the arrow among Fig. 2.
Show cleaning air flowing in each section of air flow guide 30 with dotted arrow among Fig. 3.
The air that the cleaning air outlet slit that forms from air ejection section 36 blows out is to blow out forward in the roughly dead ahead of cutting blade 5; Therefore can blow on the not cutting surface area that is positioned at cutting zone the place ahead of workpiece 10, so that clean out the foreign matter 14 in the surface area that do not cut that comprises line of cut.
The cleaning air outlet slit that air ejection section 36 forms can be forward towards downward-sloping slightly direction, so that the air that blows out from air ejection section 36 focuses on the not cutting surface area of workpiece.
Under the situation that is provided with the cutting indicator on the leading edge of pedestal 3, the cleaning air outlet slit that air ejection section 36 forms can be offered towards cutting indicator front side.
Be appreciated that as stated the air flow guide 30 that constitutes not only can be installed on the upper surface of pedestal 3, can also be partly or integrally be installed in the pedestal 3.
In the example of describing in the above, the independent air flow guide 30 that is installed on the pedestal 3 has formed the cleaning air flow passage.Yet the utility model can also utilize pedestal 3 itself to form the cleaning air flow passage.For example, the cleaning air flow passage can be opened in the pedestal 3.In this case, the cleaning air flow passage can itself be limited pedestal 3 independently, perhaps limits out through pedestal 3 and cooperating of workpiece 10.
Describe according to the utility model with reference to Fig. 5,6 below and utilize an embodiment who limits pedestal 3 and cooperating of workpiece 10 the cleaning air flow passage.
As shown in Figure 5, in pedestal 3, formed air-flow gathering sill 40.This air-flow gathering sill 40 is elongated slots, offers in base body from the basal surface of pedestal 3.In embodiment illustrated, pedestal 3 limits roof face and two side wall surfaces of air-flow gathering sill 40, and the bottom side of air-flow gathering sill is the basal surface that is open to pedestal 3.Like this, when cutting operation, be placed on the upper surface of workpiece 10 when pedestal 3 after, limit the cleaning air flow passage between the upper surface of the roof face of air-flow gathering sill 40 and side wall surface and workpiece 10.
Certainly, air-flow gathering sill 40 also can itself in bottom side sealing, like this, just utilize pedestal 3 itself just to limit the cleaning air flow passage, and needn't by means of with the upper surface of workpiece 10 between cooperate.
As shown in Figure 6; Air-flow gathering sill 40 comprises from the air outlet slit of motor cover 2 and beginning along being parallel to the air receiver section 42 that the cutting direction of advance is extended; The air ejection section 46 at intersection point place between pedestal leading edge and plane, cutting blade place, and be connected the changeover portion 44 between air receiver section 42 and air ejection section 46.
The cleaning air outlet slit that the workpiece surface zone of air ejection section 46 formation intersection point front between pedestal leading edge and plane, cutting blade place is offered.
Because air ejection section 46 and air receiver section 42 are lateral alternates each other, so changeover portion 44 and cutting direction of advance are connected between air receiver section 42 and the air ejection sections 46 at angle.
The cross sectional dimensions and/or the shape of air ejection section 46 and air receiver section 42 can differ from one another.Changeover portion 44 has been realized cross sectional dimensions and/or the shape variation between air ejection section 46 and the air receiver section 42.
Referring to Fig. 5, it is open-minded that the part of air receiver section 42 rear end of air receiver section 42 (for example) runs through pedestal 3, so that form the air receiving port 45 of and connection corresponding with the air outlet slit of motor cover 2 24.
Like this, air-flow gathering sill 40 has formed the cleaning air flow passage of air from uncut workpiece surface zone, motor cover 2 guiding cutting zone the place ahead.When cutter sweep is operated; Direction shown in the dotted arrow from air outlet slit 24 along Fig. 5 gets in the air receiving port 45 of air-flow gathering sill 40; And in the cleaning air flow passage that air-flow gathering sill 40 limits, flow, the final cleaning air outlet slit that forms from the air ejection section 46 of air-flow gathering sill 40 blows out.Shown in the arrow among Fig. 5.
Show cleaning air flowing in each section of air-flow gathering sill 40 with dotted arrow among Fig. 6.
The characteristics of the others of air-flow gathering sill 40 can be similar with the air flow guide 30 that the front is described.
Be appreciated that those skilled in the art on the application's basis, can clear up air flow passage for this and construct various concrete structures, and these concrete structures be included in the scope of the utility model.For example, the quantity of each section of the gentle stream gathering sill of air flow guide and trend can be different from and show here and describe; Perhaps, the gentle stream gathering sill of air flow guide can be configured to continuous curve shape.No matter adopt which type of concrete structure, as long as can go out the cleaning air flow passage of air-flow along base structure from uncut workpiece surface zone, motor cover guiding cutting zone the place ahead.
In addition, the air outlet slit of motor cover also can be arranged on other position of motor cover, as long as can be communicated with the air receiving port of cleaning air flow passage.
Portable cutting tool according to the utility model; Owing to formed in the pedestal with the lead cleaning air flow passage in uncut workpiece surface zone, cutting zone the place ahead of air-flow; Therefore; The air that cooling motor is used in the motor cover is being directed being discharged on the uncut workpiece surface zone, cutting zone the place ahead; This makes from air-flow of motor cover should uncut workpiece surface regional by guiding efficiently, so that in cutting operation process, the surface area that will cut is cleared up efficiently.
In addition; Portable cutting tool according to the utility model; Utilize the cleaning air flow passage in the pedestal to realize the guiding of cleaning air-flow, and need on upper shroud, not add any extra part, therefore can not increase the load of angular adjustment frame and depth adjustment frame.Like this, can improve the positioning accuracy of cutting blade, reduce the cost of whole cutting tool.
Although describe the specific implementations of the utility model here in detail, they only provide for the purpose of explaining, and should not think that they constitute restriction to the scope of the utility model.Under the prerequisite that does not break away from the utility model spirit and scope, various replacements, change and transformation can be come out by conception.
Claims (11)
1. portable cutting tool comprises:
Cutting is cut the cutting blade of workpiece;
Drive the motor of said cutting blade;
Cover covers the motor cover of said motor, offers air intlet and air outlet slit on the motor cover, also includes the fan that sucks air and air is discharged from said air outlet slit from said air intlet in the motor cover; And
Pedestal is tabular, comprises that pedestal is provided with the opening that runs through upper surface and lower surface against lower surface that is cut workpiece and upper surface that said motor and motor cover are installed, and said cutting blade partly passes this opening;
It is characterized in that said pedestal comprises the cleaning air flow passage of leading to uncut workpiece surface zone, cutting zone the place ahead from said air outlet slit.
2. portable cutting tool as claimed in claim 1 is characterized in that, said cleaning air flow passage is formed by the air flow guide that is installed on the pedestal, and said air flow guide has the air receiving port corresponding with said air outlet slit.
3. portable cutting tool as claimed in claim 2; It is characterized in that; Two sidewalls that said air flow guide has roof and extends from roof; And the sealing and fixing of said air flow guide is on the upper surface of pedestal, serves as the diapire of clearing up air flow passage by the part upper surface of pedestal, and said cleaning air flow passage is limited between the upper surface of roof and sidewall and pedestal of said air flow guide.
4. portable cutting tool as claimed in claim 2; It is characterized in that; Said air flow guide have roof, diapire and extend in roof and diapire between two sidewalls, said cleaning air flow passage is limited between roof, sidewall and the diapire of said air flow guide.
5. portable cutting tool as claimed in claim 1 is characterized in that, said cleaning air flow passage is formed by the air-flow gathering sill of offering in the pedestal, and said air-flow gathering sill has the air receiving port corresponding with said air outlet slit.
6. portable cutting tool as claimed in claim 5; It is characterized in that; Said pedestal limits the roof face of air-flow gathering sill and two side wall surfaces that extend from the roof face; And the bottom side of air-flow gathering sill is open, serves as the diapire of said cleaning air flow passage by the part upper surface of workpiece, and said cleaning air flow passage is limited between the upper surface of roof face and side wall surface and workpiece of pedestal.
7. portable cutting tool as claimed in claim 5; It is characterized in that; Said pedestal limits roof face, the diapire face of air-flow gathering sill and two side wall surfaces that between roof face and diapire face, extend, and said cleaning air flow passage is limited between roof face, diapire face and the side wall surface of pedestal.
8. like each described portable cutting tool in the claim 2 to 4, it is characterized in that said air flow guide comprises:
The air receiver section that is communicated with the air outlet slit of motor cover, said air receiving port are formed in the said air receiver section;
Be located at the air ejection section at intersection point place between the plane, pedestal leading edge and cutting blade place; And
Be connected the changeover portion between air receiver section and air ejection section.
9. like each described portable cutting tool in the claim 5 to 7, it is characterized in that said air-flow gathering sill comprises:
The air receiver section that is communicated with the air outlet slit of motor cover, said air receiving port are formed in the said air receiver section;
Be located at the air ejection section at intersection point place between the plane, pedestal leading edge and cutting blade place; And
Be connected the changeover portion between air receiver section and air ejection section.
10. like each described portable cutting tool in the claim 2 to 7; It is characterized in that; Also comprise the guard shield that covers cutting blade top, said motor cover links to each other with said guard shield, and said air outlet slit is arranged on the bottom of the perisporium that links to each other with said guard shield of motor cover.
11., it is characterized in that said portable cutting tool is an annular saw like each described portable cutting tool in the claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120125108U CN202137453U (en) | 2011-04-20 | 2011-04-20 | Portable cutting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120125108U CN202137453U (en) | 2011-04-20 | 2011-04-20 | Portable cutting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202137453U true CN202137453U (en) | 2012-02-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120125108U Expired - Lifetime CN202137453U (en) | 2011-04-20 | 2011-04-20 | Portable cutting tool |
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| CN (1) | CN202137453U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104968479A (en) * | 2013-02-05 | 2015-10-07 | 豪仕马裁板锯技术有限公司 | Panel dividing system for dividing panel-shaped workpieces |
| CN106378491A (en) * | 2012-07-13 | 2017-02-08 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN110014190A (en) * | 2012-07-13 | 2019-07-16 | 苏州宝时得电动工具有限公司 | Portable cutter |
| WO2021135876A1 (en) * | 2019-12-31 | 2021-07-08 | 南京德朔实业有限公司 | Electric circular saw |
-
2011
- 2011-04-20 CN CN201120125108U patent/CN202137453U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106378491A (en) * | 2012-07-13 | 2017-02-08 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN106424920A (en) * | 2012-07-13 | 2017-02-22 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN110014190A (en) * | 2012-07-13 | 2019-07-16 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN104968479A (en) * | 2013-02-05 | 2015-10-07 | 豪仕马裁板锯技术有限公司 | Panel dividing system for dividing panel-shaped workpieces |
| WO2021135876A1 (en) * | 2019-12-31 | 2021-07-08 | 南京德朔实业有限公司 | Electric circular saw |
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Granted publication date: 20120208 |