CN102407381A - Portable cutting machine - Google Patents
Portable cutting machine Download PDFInfo
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- CN102407381A CN102407381A CN2010102976212A CN201010297621A CN102407381A CN 102407381 A CN102407381 A CN 102407381A CN 2010102976212 A CN2010102976212 A CN 2010102976212A CN 201010297621 A CN201010297621 A CN 201010297621A CN 102407381 A CN102407381 A CN 102407381A
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- guard shield
- saw blade
- locating part
- housing
- hole
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Abstract
The invention provides a portable cutting machine comprising a saw blade, a tool driving shaft, a shell and a protective guard, wherein the saw blade is used for cutting workpieces and provided with a cutting direction; the tool driving shaft is used for installing the saw blade; the protective guard is movably installed on the shell and provided with a saw blade through hole for allowing the saw blade to pass through, the protective guard moves between a first position and a second position movably relative to the shell, when the protective guard is arranged at the first position, the saw blade does not penetrate out of the saw blade through hole, and when the protective guard is arranged at the second position, the saw blade penetrates out of the saw blade through hole; a protective guard guiding mechanism is arranged between the protective guard and the shell and is wholly arranged at the side of the tool driving shaft, opposite to a cutting direction. Therefore, the side of the tool driving shaft, facing to the cutting direction, is not provided with a guiding structure any more, and a user can clearly observe the position of the saw blade, thus convenience is provided for cutting work.
Description
Technical field
The present invention relates to a kind of power tool, especially relate to a kind of portable cutter.
Background technology
Traditional portable formula cutting machine, for example portable electric circular saw generally include a saw blade that is used for processing work, are used for driving the motor of this saw blade; The output shaft of motor is usually all perpendicular to saw blade, and main handle is used in operating process, supplying the operator to hold, and main handle is vertical with motor to be provided with; This electric circular saw comprises that a base plate, one decide guard shield and a moving guard shield; Decide guard shield and be positioned at the top of base plate, at any time saw blade top is closed at wherein, moving guard shield is positioned at below the base plate; During work; Expose the moving rotatable saw blade bottom that makes of guard shield, and the shortcoming of this traditional electrical annular saw is that volume ratio is big and relatively more clumsy, and is just not too suitable when processing some smaller, relatively thinner workpiece.
Production firm has improved technology, and it is less to have released a kind of volume successively, light and handy portable electric circular saw; This electric circular saw comprises a less saw blade, is used to drive the motor of saw blade, casing; The casing front portion is used for accommodating transmission mechanism etc., and the casing rear portion is used for accommodating motor etc., and this little portable electric circular saw is not provided with independent handle; The rear portion of casing promptly can be used as handle usefulness, and this electric circular saw does not have the independent guard shield of deciding, and the casing front portion is contained in saw blade top wherein; This casing front portion just is equivalent to the guard shield of deciding of traditional electrical annular saw; An independent moving guard shield movably is installed on the casing front portion, this moving guard shield comprise guard shield bottom with four from the bottom upwardly extending sidewall, be provided with opening bottom the guard shield and be used to make that saw blade therefrom stretches out; Moving shroud ring is provided with around the housing front portion, thereby and different with respect to the anterior removable feasible saw blade depth of exposing of casing.This electric circular saw structure is simple relatively, relatively is fit to the thin workpiece of cutting.Yet the moving guard shield of this portable electric circular saw is completely enclosed within inside with saw blade at present; The complete passive guard shield of user's realization blocks when cut workpiece; Can't observe the position of saw blade at all; The user can not in time understand the concrete progress of cutting at all, thereby has brought puzzlement for cutting work.
Summary of the invention
Technical problem to be solved by this invention provides a kind of portable cutter of reliable.
In order to address the above problem, the invention provides a kind of portable cutter, comprising: the saw blade that is used for cut workpiece and has cut direction; Be used to install the tool drives axle of said saw blade; Housing; Movably be installed on the guard shield on the said housing; This guard shield is provided with the saw blade through hole and is used to make that saw blade therefrom passes; This guard shield movably moves between the primary importance and the second place with respect to said housing, and when guard shield was positioned at primary importance, said saw blade did not pass from the saw blade through hole; When guard shield was positioned at the second place, said saw blade passed from said saw blade through hole; Be provided with the guard shield guiding mechanism between said guard shield and the said housing, said guard shield guiding mechanism integral body is positioned at a said tool drives axle side opposite with said cut direction.
In disclosed portable cutter; Because the guard shield guiding mechanism is wholy set in the position that the housing rear portion is closed in the housing front portion; Thereby make said guard shield no longer have guide frame away from a side at said housing rear portion; Thereby the user can clearly observe the position of saw blade, for cutting work has brought facility.
Preferred implementation of the present invention also below several kinds:
Preferably, said guard shield guiding mechanism comprises the guide rail that is arranged on of said guard shield and the said housing, and the locating part on another among both.
Preferably, the position of the corresponding said saw blade through hole of said guard shield is equipped with the saw blade host cavity, and the position that said saw blade host cavity closes on said saw blade through hole is provided with through hole.
Preferably; Said guard shield comprises the guard shield bottom that said saw blade through hole is set; Said guard shield bottom has can be against the abutment face of workpiece, and said tool drives axle is positioned at said through hole and the said guard shield guiding mechanism centre position in said abutment face projection in the projection of said abutment face.
Preferably, two perpendicular outside of the axis of said housing and said tool drives axle are respectively arranged with said locating part, and the quantity of said guide rail is two, and the said locating part with said housing both sides cooperates respectively.
Preferably, said guide rail is an arc-shaped guide rail, and the center of circle of arc is positioned at outside the said portable cutter and away from the side at said housing rear portion.
The present invention also provides a kind of portable cutter, comprising: motor; The saw blade that is used for cut workpiece; Be used to install said saw blade and by said motor-driven tool drives axle; Housing comprises housing front portion that said tool drives axle is installed and the housing rear portion of accommodating said motor; Movably be installed on the guard shield on the said housing front portion; This guard shield is provided with the saw blade through hole and is used to make that saw blade therefrom passes; This guard shield movably moves between the primary importance and the second place with respect to said housing, and when guard shield was positioned at primary importance, said saw blade did not pass from the saw blade through hole; When guard shield was positioned at the second place, said saw blade passed from said saw blade through hole; Be provided with the guard shield guiding mechanism between said guard shield and the said housing, said guard shield guiding mechanism integral body is between said tool drives axle and said motor.
In disclosed portable cutter; Because the guard shield guiding mechanism is wholy set on the housing front portion; And it is whole between said tool drives axle and said housing rear portion; Thereby make said guard shield no longer have guide frame, thereby the user can clearly observe the position of saw blade, for cutting work has brought facility away from a side of guard shield guiding mechanism.
Preferably, said guard shield guiding mechanism comprises the guide rail that is arranged on of said guard shield and the said housing, and the locating part on another among both.
Preferably, the position of the corresponding said saw blade through hole of said guard shield is equipped with the saw blade host cavity, and the position that said saw blade host cavity closes on said saw blade through hole is provided with through hole.
Preferably; Said guard shield comprises the guard shield bottom that said saw blade through hole is set; Said guard shield bottom has can be against the abutment face of workpiece, and said tool drives axle is positioned at said through hole and the said guard shield guiding mechanism centre position in said abutment face projection in the projection of said abutment face.
Description of drawings
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Fig. 1 is the stereogram of the portable cutter that first embodiment of the invention disclosed;
Plane when Fig. 2 does not install guard shield for the portable cutter that Fig. 1 disclosed;
Cut-away view when Fig. 3 does not install guard shield for the portable cutter that Fig. 1 disclosed;
Fig. 4 is the stereogram of the guard shield of the portable cutter that Fig. 1 disclosed;
The stereogram that Fig. 5 sees from another angle for the guard shield among Fig. 4;
Fig. 6 is the stereogram of portable cutter when saw blade exposes guard shield that Fig. 1 disclosed;
Fig. 7 is the three-dimensional exploded view of the portable cutter that Fig. 1 disclosed;
When Fig. 8 does not install guard shield for portable cutter that Fig. 1 disclosed from another stereogram of looking sideways;
Fig. 9 is portable cutter that Fig. 8 the disclosed partial enlarged drawing at the A place;
Figure 10 is portable cutter that Fig. 1 the disclosed stereogram when the position that spanner is in out;
Figure 11 is the stereogram of the depth adjustment of the portable cutter that Figure 10 disclosed;
Cut-away view when Figure 12 is opened for portable cutter that Fig. 1 disclosed is equipped with guard shield and gear-box;
Figure 13 is the exploded view of portable cutter when base plate is not installed on the guard shield that Fig. 1 disclosed;
Figure 14 is the partial exploded view of the portable cutter that Fig. 1 disclosed;
Figure 15 is the schematic internal view of portable cutter when guard shield is installed that Fig. 1 disclosed;
Figure 16 is the part sketch map of the portable cutter that second embodiment of the invention disclosed;
Figure 17 is the part sketch map of the portable cutter that third embodiment of the invention disclosed;
Figure 18 is the front view of the portable cutter that fourth embodiment of the invention disclosed;
Figure 19 is the stereogram of the guard shield of the portable cutter that disclosed among Figure 18;
Part stereogram when Figure 20 does not install guard shield for the portable cutter that is disclosed among Figure 18;
Figure 21 is the vertical view of the portable cutter that disclosed among Figure 18;
Figure 22 is the portable cutter that disclosed among Figure 21 phantom along straight line H-H;
Figure 23 is the part rearview of the portable cutter that disclosed among Figure 18.
Wherein:
40. portable cutter 86. pins 136. first arcuate flanks
42. housing 88. grooves 138. second arcuate flanks
44. the anterior 88a. square groove of housing 140. bearings
46. housing rear portion 88b. cylindrical recesses 142. arc convex
48. handle grip portion 90. depth adjustment, 144. first arcuate flanks
50. first end, 92. arc openings, 146. second arcuate flanks
52. second end, 94. arcs are accommodated plate 148. bearings
53. tool drives axle 96. slide blocks 150. portable cutters
54. power line 98. cam spanners 154. guard shields
55. air outlet 100. cam part 157. rail end
56. saw blade 102. spanner portions 158. guard shields bottom
57. air inlet 104. pointers 159. through holes
58. motor 106. resilience mechanisms 160. arc-shaped guide rails
59. electric motor fan 108. helical springs 161. saw blade host cavities
60. switch 110. pin 162a. depression
62. transmission mechanism 112. pilot hole 162b. depression
64. guard shield 114. diameters are than small end 163. guide rails bottom
66. bigger end 164. first guiding cheekns of guard shield bottom 116. diameters
68. base plate 118. indicator collets 165. first arcuate flanks
70a-d. guard shield sidewall 120. first arcuate flanks 166. second guiding cheekns
72. saw blade through hole 122. second arcuate flanks 167. second arcuate flanks
74. chip-removal hole 124. bearings 168. spacing preiections
76. cavity 126. projections 169. fins
78. top edge 128. bearing inner races 170. guard shield sidewalls
80a-d. arc groove 130. bearing outer ring 172a. bearings
82a-d. housing sidewall 132. groove floor 172b. bearings
84. cylinder 134. arc opening 172c. bearings
174a. screw 174c. screw 178. laser alignment device
174b. screw 176. bearing inner races 180. dust-exhausting ports
X, Y. longitudinal extending axis a. angle
Specific embodiment
Embodiment one
With reference to Fig. 1, a kind of portable cutter 40 comprises housing 42, and this housing 42 comprises housing front portion 44, housing rear portion 46 and is connected the housing middle part at housing anterior 44 and housing rear portion 46.The housing middle part is a handle grip portion 48 in one embodiment of the invention.Housing 42 can be a moulding, and can be made up of two and half shells.Housing rear portion 46 comprises first end 50 and second end, 52, the first ends 50 and handle grip portion 48 adjacency, and second end 52 is away from handle grip portion 48 and be connected with power line 54 usually.
With reference to Fig. 2; Handle grip portion 48 roughly linearly extends with housing rear portion 46; Handle grip portion 48 is X with the longitudinal extending axis at housing rear portion 46, and housing anterior 44 extends from 48 bendings of handle grip portion, and the longitudinal extending axis of housing anterior 44 is Y; The angle a of the longitudinal extending axis X at the longitudinal extending axis Y of housing anterior 44 and handle grip portion 48 and housing rear portion 46 is more than or equal to 90 degree, and angle a is greater than 90 degree in the present embodiment.
With reference to Fig. 3, portable cutter 40 comprises and is used for the saw blade 56 and the motor that is used for driving this saw blade 56 of processing work that motor is a motor 58 in the present embodiment.Saw blade 56 has the saw blade plane.In other embodiments of the invention, motor also can be air motor, hydraulic motor etc.Being contained in the housing anterior 44 of saw blade 56 parts.Motor 58 is contained in the housing rear portion 46, thereby motor 58 can be connected on the AC power (not shown) with power line 54 electric connections, and motor 58 also can be to supply power through dc-battery certainly.Portable cutter 40 also comprises switch 60, and switch 60 electrically connects with motor 58 and is used for controlling the unlatching of motor 58 and stopping.
Please consult Fig. 2 and Fig. 3 in the lump; Motor 58 is equipped with electric motor fan 59; And electric motor fan 59 is contained in the end of housing rear portion 46 away from handle grip portion 48; 46 zones around electric motor fan 59 are provided with air outlet 55 at the housing rear portion for it, and the position that is connected with handle grip portion 48 at housing rear portion 46 is provided with air inlet 57.The position of electric motor fan 59 so is set, can makes air outlet, thereby make the wind that blows out from air outlet can not blow to user's hand or head, improved the comfort level of using relatively away from user's hand or head.
Being provided with transmission mechanism 62 between motor 58 and the saw blade 56 is used for driving saw blade 56 motions with transmission of power to the saw blade 56 of motor 58 and through tool drives axle 53.Transmission mechanism 62 is contained in respectively in housing anterior 44 and the handle grip portion 48.
With reference to Fig. 1, Fig. 4 and Fig. 5; Portable cutter 40 comprises guard shield 64; Guard shield 64 around to surround housing anterior 44, guard shield 64 comprises guard shield bottom 66, in the present embodiment; The outside of guard shield bottom 66 also is equipped with base plate 68 (with reference to Figure 13), base plate 68 bottom guard shield between 66 the mode through buckle be fixedly connected.Base plate 68 contacts with surface of the work in the course of work.In other embodiments of the invention, base plate 68 also can not installed in the outside of guard shield bottom 66, but directly contacts with surface of the work through guard shield bottom 66.
With reference to Fig. 1 and Fig. 6; Be connected with the mating part (about arc-shaped guide rail and mating part through arc-shaped guide rail between guard shield 64 and the housing anterior 44; The back can be described in detail), cooperate with arc-shaped guide rail through the mating part, thereby limit the displacement on the direction vertical of guard shield edge with the saw blade plane.Guide rail is located on anterior among both one of guard shield and housing, and the mating part is located among both another of guard shield and housing front portion.The mating part cooperates with arc-shaped guide rail and can move along arc-shaped guide rail.When the mating part when arc-shaped guide rail moves; Guard shield 64 relative housings anterior 44 are movably from the primary importance to the second place; When guard shield 64 was positioned at primary importance, saw blade 56 did not pass (with reference to Fig. 1) from saw blade through hole 72, made saw blade 56 can from guard shield 64, not expose; When guard shield 64 is positioned at the second place, saw blade 56 at least part pass (with reference to Fig. 6) from saw blade through hole 72, at this moment, saw blade 56 can part expose from guard shield 64, thus portable cutter 40 can be used to processing work.
Further with reference to Fig. 4 and Fig. 5, guard shield sidewall 70a and 70b be over against setting, and guard shield sidewall 70c and 70d be over against setting, and be installed on housing anterior 44 last times when guard shield 64, guard shield sidewall 70a and 70b and saw blade 56 almost parallels, and be positioned at the both sides of saw blade 56.In the present embodiment, arc-shaped guide rail is the arc groove 80a that is located on the inner surface of guard shield sidewall 70a, 80b and be located at the arc groove 80c on the inner surface of guard shield sidewall 70b, 80d.Arc groove 80a-d roughly extends from guard shield bottom 66 obliquely.Arc groove 80a-d is provided with along the circumferential direction of guard shield sidewall 70a and 70b inner surface at interval.The center of circle that the circular arc at arc groove 80a place is corresponding is roughly the same center of circle with the corresponding center of circle of circular arc at arc groove 80b place.The center of circle that the circular arc at arc groove 80c place is corresponding is roughly the same center of circle with the corresponding center of circle of circular arc at arc groove 80d place.
With reference to Fig. 7; Fig. 8 and Fig. 9, housing anterior 44 comprises four housing sidewall 82a-d, respectively with the corresponding cooperation of four guard shield sidewall 70a-d of guard shield 64; In the present embodiment, the mating part is located on the outer surface of housing sidewall 82a and 82b and with arc groove 80a-d and is cooperated.It is protruding that the mating part is generally, and convexity is contained in the arc groove 80a-d and can moves within it.
In the present embodiment, the mating part comprises cylinder 84, and the center of cylinder 84 is provided with through hole; Pin 86 passes through hole; Pin 86 two ends are exposed to through hole, and cooperating between the through hole of pin 86 and cylinder 84 is matched in clearance, thereby makes that cylinder 84 can be around pin 86 rotations; Sidewall 82a and 82b are provided with the groove 88 that is used for accommodating the mating part; The mid portion of groove 88 is square groove 88a, and what be used for part accommodates cylinder 84, and the two ends of groove 88 are provided with the cylindrical recesses 88b that is complementary with the two ends shape of exposing the pin 86 of through hole.Being contained in the semi-cylindrical recesses 88a of cylinder 84 parts, the two ends of pin 86 are contained in the cylindrical recesses 88b, between cylinder 84 and the square groove 88a certain clearance are arranged, and this docked mode makes cylinder 84 in square groove 88a, to rotate.In the present embodiment, be interference fit between the two ends of pin 86 and the cylindrical recesses 88b, thereby make that whole mating part can not be easy to fall down from housing anterior 44.
Certainly can be to be fixedly connected between pin 86 and the cylinder 84, and also can be matched in clearance between pin 86 two ends and the cylindrical recesses 88b, feasible pin 86 and cylinder 84 rotate together.
With reference to Figure 10 and Figure 11, portable cutter 40 comprises that depth adjustment 90 is used for regulating depth of cut.Housing sidewall 82a is provided with arc opening 92.Bearing of trend and the radian of the bearing of trend of arc opening 92 and radian and arc groove 80a-d are roughly the same.One arc is accommodated plate 94 and is contained in this arc opening 92.Depth adjustment 90 movably is contained in arc and accommodates in the plate 94.Depth adjustment 90 comprises slide block 96, and slide block 96 movably is installed on arc and accommodates in the plate 94.
What cam spanner 98 pivoted is connected on the slide block 96.Cam spanner 98 comprises cam part 100 and spanner portion 102.Through operation spanner portion 102, cam part 100 is pivotable with depth adjustment 90 relative housing sidewall 82a clampings or unclamp.Be fixedly coupled a pointer 104 on the slide block 96, pointer 104 is used for indicating the degree of depth of setting.Arc opening 92 1 sides indicate scale value (not shown), and this scale value is represented saw blade depth.Pointer 104 points on the scale value of arc opening 92 1 sides, thereby shows the saw blade depth that current setting is good.
In the work, when needing to regulate the degree of depth, lift spanner portion 102 earlier, the position that cam spanner 98 is in out, along arc opening 92 sliding sliders 96, the scale value that pointer 104 sensings are needed.After having set up the degree of depth, depress spanner portion 102, make cam spanner 98 be in the position of closing, this moment, slide block 96 was locked in a certain position of arc opening 92.During cut workpiece; Being pressed on the surface of the work of base plate 68 parts; The operator holds handle grip portion 48, and imposes on 48 1 pressure of handle grip portion, and this moment, housing 42 relative guard shields 64 were along arcuate movement; Top edge 78 until guard shield 64 contacts with the cam part 100 of cam spanner 98, exposes the saw blade 56 of the certain depth of guard shield 64 and just can process.
With reference to Figure 12, portable cutter 40 comprises resilience mechanism 106, and this resilience mechanism 106 is used to make the relative housing of guard shield 64 42 to move to primary importance from the second place.In the present embodiment, resilience mechanism 106 comprises helical spring 108 and pin 110.Portable cutter 40 further comprises gear drive (not indicating); This gear drive is contained in the gear box casing (not indicating); Gear box casing is provided with pilot hole 112 and is used for accommodating helical spring 108 and part pin 110; One end of helical spring 108 props up gear box casing, and pin 110 comprises a diameter than small end 114 and the bigger end 116 of diameter, and diameter is than being arranged with helical spring 108 on the small end 114; The bigger end 116 of diameter is against guard shield bottom 66, and helical spring 108 compresses power for 110 1 on pin towards the direction of guard shield bottom 66.
With reference to Figure 13, between guard shield 64 and base plate 68, be provided with and cut wide indicating device.This is cut wide indicating device and comprises some indicator collets 118.Indicator collet 118 movably is installed on the guard shield sidewall 70a-b, be used for after saw blade 56 is exposed to guard shield 64, the indication saw blade 56 foremost and rearmost end.
With reference to Figure 14 and Figure 15, further combine Fig. 4 and Fig. 5, portable cutter 40 further comprises locating part.Above-mentioned arc-shaped guide rail is arranged on both one of guard shield 64 and housing 42, and locating part is arranged on both another of guard shield 64 and housing 42, and this locating part cooperates with arc-shaped guide rail, thereby limits the displacement of guard shield 64 along the arc-shaped guide rail normal direction.
In one embodiment of the invention, the arc-shaped guide rail that cooperates with locating part refers to above-mentioned arc groove 80a and 80d, the locating part of mainly introducing arc groove 80a earlier and being mated here.
Locating part comprises first group of locating part and second group of locating part.First group of locating part selectable with first arcuate flanks or second arcuate flanks in linear a contact, second group of locating part selectable with first arcuate flanks or second arcuate flanks in a linearity contact.
First group of locating part be identical with second group of locating part to be a bearing 124.Housing sidewall 82a goes up the outward extending projection 126 that is equipped with.Bearing 124 is installed on the projection 126.Bearing 124 comprises bearing inner race 128 and bearing outer ring 130.Bearing outer ring 130 relative bearing inner races 128 turn.Be interference fit between bearing inner race 128 and the projection 126.Two bearings 124 and two cylinders 84 all are contained in the arc groove 80a.Two cylinders 84 also can be positioned at the outside of two bearings 124 between two bearings 124.
During operation; The operator presses handle grip portion 48; Make guard shield 64 move to the second place from primary importance with respect to housing 42; As the bearing of first group of locating part 124 exercisable with first arcuate flanks 120 or second arcuate flanks 122 linear a contact among both, with another maintenance certain clearance among both; Simultaneously, as the bearing of second group of locating part 124 exercisable with the linear contact that does not contact among both of first arcuate flanks 120 or second arcuate flanks 122 with the bearing 124 of first group of locating part, and with both in another keep certain clearance.
With reference to Figure 15, be certain state diagram in a flash of guard shield 64 relative housing 42 motions, keep certain clearance as the bearing 124 and first arcuate flanks, 120 linear contacts of first group of locating part with second arcuate flanks 122 this moment; The bearing 124 and first arcuate flanks 120 as second group of locating part keeps certain clearance simultaneously, with second arcuate flanks, 122 linear contacts.
After guard shield moves to the second place with respect to housing; The operator holds handle grip portion 48; Mobile portable cutting machine forward or backward, as first group of locating part with as linear a contact in exercisable while of the bearing of second group of locating part and first arcuate flanks or second arcuate flanks.
With aforementioned identical, also contain in the arc groove 80d and first group of locating part and second group of locating part that locating part is identical, the purpose that locating part is set in arc groove 80d is to make limit effect better.
Certainly the quantity of locating part is not limited to the above.
Embodiment two
With reference to Figure 16; Present embodiment and embodiment one are basic identical; Different is that the arc-shaped guide rail that cooperates with locating part is not original arc groove, but is different from the another one arc opening 134 of arc groove, and the radian of this arc opening 134 is identical with the radian of aforementioned arc groove.Two respective side at arc opening 134 are provided with first arcuate flanks 136 and second arcuate flanks 138; First group of locating part and second group of locating part are respectively two bearings 140; Be positioned at the both sides of arc opening 134 as two bearings 140 of first group of locating part, and exercisable and first arcuate flanks 136 or second arcuate flanks, 138 linear contacts.
Figure 16 is certain state diagram in a flash of guard shield 64 relative housing 42 motions; At this moment; A bearing 140 as first group of locating part contacts with first arcuate flanks, 136 linearities, as another bearing 140 and second arcuate flanks, the 138 maintenance certain intervals of first group of locating part; Simultaneously, keep certain intervals, contact with second arcuate flanks, 138 linearities as another bearing 140 of second group of locating part as the bearing 140 and first arcuate flanks 136 of second group of locating part.
Embodiment three
With reference to Figure 17; Present embodiment and embodiment one basic identical (not shown); Different is that the arc-shaped guide rail that cooperates with locating part is not original arc groove; But being different from the another one arc convex 142 of arc groove, the radian of this arc convex 142 is identical with the radian of aforementioned arc groove.Lateral surface in two correspondences of arc convex 142 is provided with first arcuate flanks 144 and second arcuate flanks 146; First group of locating part and second group of locating part are respectively two bearings 148; These two bearings 148 are positioned at the both sides of arc convex 142, and exercisable and first arcuate flanks 144 or second arcuate flanks, 146 linear contacts.
Figure 17 is certain state diagram in a flash of guard shield 64 relative housing 42 motions; At this moment; A bearing 148 as first group of locating part contacts with first arcuate flanks, 144 linearities, as another bearing 148 and second arcuate flanks, the 146 maintenance certain intervals of first group of locating part; Simultaneously, keep certain intervals, contact with second arcuate flanks, 146 linearities as another bearing 148 of second group of locating part as the bearing 148 and first arcuate flanks 144 of second group of locating part.
Embodiment four
See also Figure 18; The portable cutter 150 that it provides for fourth embodiment of the invention; It comprises guard shield 154, housing 42 and is contained in the saw blade 56 in the guard shield 154; Its middle shell 42 comprises housing front portion 156, accommodates the housing rear portion 46 of motor, the handle grip portion 48 between housing anterior 156 and housing rear portion 46.Portable cutter 150 is basic identical with the functional structure of the portable cutter 40 that previous embodiment provides, and only describes to difference as space is limited at this.
Please consult Figure 18 and Figure 19 in the lump.Guard shield 154 comprises and is used for against the guard shield of workpiece bottom 158, is used for the arc-shaped guide rail 160 that cooperates with the locating part of portable cutter 150, the saw blade host cavity 161 that is used to accommodate saw blade 56.
Saw blade host cavity 161 is installed on guard shield bottom 158 on the surface of said abutment face; And it is corresponding with the position of saw blade through hole 72; When guard shield 154 is installed on portable cutter 150 and between the primary importance and the second place, change; Saw blade host cavity 161 all part is contained in the housing anterior 156, thereby makes the volume of portable cutter 150 less, has rationally utilized the space in the housing anterior 156.Saw blade host cavity 161 forms a cross section and corresponding cavity identical with saw blade through hole 72 shapes, and saw blade 56 can be contained in the said cavity.Saw blade host cavity 161 is respectively arranged with depression 162a and depression 162b with the centre position of the pair of sidewalls that saw blade through hole 72 extends in the same way; In the time of in saw blade 56 is contained in saw blade host cavity 161; Depression 162a and depression 162b can accommodate the tool drives axle 53 of saw blade 56, constitute obstacle thereby saw blade host cavity 161 can not changed between the primary importance and the second place guard shield 154.
Saw blade host cavity 161 with close on saw blade through hole 72 positions and be provided with the through hole 159 that runs through saw blade host cavity 161; When guard shield 154 was mounted to portable cutter 150, tool drives axle 53 was positioned at through hole 159 and the centre position of arc-shaped guide rail 160 in said abutment face projection in the projection of said abutment face.When user's cut workpiece, can clearly observe the position of saw blade 56 through through hole 159, thereby can effectively improve cutting accuracy.Moreover; Saw blade host cavity 161 can partly be contained in the housing anterior 156; The close together of its distance circle saw blade 56, the chip that saw blade 56 produces in cutting process can be discharged from through hole 159 very smoothly, thereby makes the dust discharge of whole mechanism very smooth and easy.
The quantity of arc-shaped guide rail 160 is two, extends along its longitudinally respectively, and is installed on guard shield bottom 158 on the surface of said abutment face, and lay respectively at a side of saw blade host cavity 161.Two arc-shaped guide rails 160 relatively and laterally arrange, simultaneously two arc-shaped guide rails 160 all the other end towards said surface along said longitudinally bend according to certain radian.After guard shield 154 is mounted to portable cutter 150; The center of circle of arc-shaped guide rail 160 is positioned at outside guard shield 154 and the portable cutter 150 and away from the side at housing rear portion 46; And the side that arc-shaped guide rail 160 said tool drives axles are opposite with said cut direction F; Promptly between the motor in tool drives axle 53 and housing rear portion 46; Thereby make tool drives axle 160 any guiding mechanism is not set, observe the saw blade position through through hole 159 thereby possess good visual angle towards a side of cut direction.
After guard shield 154 was mounted to portable cutter 150, arc-shaped guide rail 160 can be exposed in user's the sight line, and promptly it can not blocked by housing 42 or guard shield 154.So be provided with and make guard shield 154 be very easy to be mounted on the housing 42 of portable cutter 150; In like manner also can very convenient guard shield 154 be disassembled from housing 42; Moreover the user can clearly observe the mated condition of locating part and arc-shaped guide rail 160; Even cooperating between locating part and the arc-shaped guide rail 160 broken down, also can be very easy to find out failure cause, thereby bring facility to the user.
The structure of two arc-shaped guide rails 160 is identical, its comprise respectively away from the rail end 157 of guard shield bottom 158, the guide rail bottom 163 that is connected with guard shield bottom 158, in rail end 157 bottom guide rail between 163 and first guiding cheekn 164 and second guiding cheekn 166 of equidistant extension.Rail end 157 and guide rail bottom 163 are used to limit the scope of activities of locating part, prevent that locating part breaks away from from arc-shaped guide rail 160.
First guiding cheekn 164 possesses identical radian with second guiding cheekn 166 on the two lengthwise bearing of trend, thereby makes the track that is formed by first guiding cheekn 164 and second guiding cheekn 166 possess certain radian.First guiding cheekn 164 is that first arcuate flanks, 165, the second guiding cheekns 166 are second arcuate flanks 167 with the surface that first arcuate flanks 165 is faced mutually towards the surface of second guiding cheekn 166.When guard shield 154 is assembled to 150 last times of portable cutter, two arc-shaped guide rails 160 can cooperate with the locating part of portable cutter 150, limit the scope that guard shield 154 moves with respect to housing anterior 156.
On first arcuate flanks 165 and second arcuate flanks 167, fin 169 is set all, is used for cooperating, limit the position of guard shield 154, prevent that guard shield 154 from sliding along the direction on vertical saw blade 56 planes with respect to portable cutter 150 with locating part.In this embodiment, the surface that rail end 162 and guide rail bottom 163 is faced mutually also correspondence is provided with fin 169, thereby makes locating part more stable with cooperating of arc-shaped guide rail 160.
Extend a spacing preiection 168 at second guiding cheekn 166 back to a side centre position of first guiding cheekn 164, it can match with the depth adjustment 90 of portable cutter 150, limits the depth of cut of portable cutter 150.Certainly, portable cutter 150 often only is provided with a depth adjustment 90, and therefore two arc-shaped guide rails 160 might not all have spacing preiection 168, and the arc-shaped guide rail 160 that cooperates with depth adjustment 90 as required is provided with spacing preiection 168 and gets final product.
In order to strengthen the stress intensity of two arc-shaped guide rails 160, between second guiding cheekn 166 of two arc-shaped guide rails 160, be provided with guard shield sidewall 170, thereby make the shape of two arc-shaped guide rails 160 be difficult for deformation takes place, prolonged service life.Certainly; In order to simplify the structure of guard shield 154; The quantity of arc-shaped guide rail 160 can be one; It can be arranged at the side of the centre position of guard shield sidewall 170 towards saw blade host cavity 161, in anterior 156 inboards of housing locating part is set accordingly and cooperates with arc-shaped guide rail 160, thereby can realize that also guard shield 154 slides with respect to portable cutter 150.
Please consult Figure 18 and Figure 20 in the lump.The housing of portable cutter 150 anterior 156 is respectively arranged with locating part with two perpendicular outside of axis of tool drives axle 53; And the locating part of every side all is positioned at tool drives axle 53 side opposite with cut direction F, promptly between the motor in tool drives axle 53 and housing rear portion 46.The locating part of every side is divided into first group of locating part and second group of locating part, and wherein first group of locating part is used for and the linear mutually contact of first guiding cheekn 164 of arc-shaped guide rail 160, and second group of locating part is used for and the linear mutually contact of second guiding cheekn 166.
Said first group of locating part and said second group of locating part can every group comprise a locating part at least, and the quantity of the said locating part that is promptly cooperated with each arc-shaped guide rail 160 is at least two.When every group of locating part quantity that comprises is one in first group of locating part and the second group of locating part; Then the matching relationship between first group of locating part of housing 42 both sides and second group of locating part and the first side wall and second sidewall is opposite; The first group of locating part that is housing 42 1 sides contacts with the first side wall is linear; Second group of locating part contacts with second sidewall is linear, and then first group of locating part of housing 42 opposite sides contacts with second sidewall is linear, and second sidewall contacts with the first side wall is linear.So be provided with and can prevent that guard shield 154 from shaking, thus sliding of guaranteeing that guard shield 154 can be stable with respect to housing 42.
In the present embodiment; First group of locating part comprises first locating part, second locating part; Second group of locating part is the 3rd locating part; And first locating part and second locating part all contacts with first arcuate flanks 165 is linear mutually, the 3rd locating part along arc-shaped guide rail 160 bearing of trends between first locating part and second locating part the position and with second arcuate flanks, 167 linear contacts, thereby effectively limit the normal direction generation displacement of guard shield 154 with respect to arc-shaped guide rail 160.
Certainly; The position of first locating part, second locating part and the 3rd locating part be provided be not limited to first locating part and second locating part and first arcuate flanks 165 mutually linearity contact; The 3rd locating part and the linear mutually contact of second arcuate flanks 167; It can also be arranged to first locating part and contact with the 3rd locating part and first arcuate flanks 165 are linear mutually; Second locating part and the linear mutually contact of second arcuate flanks 167, in like manner it can also be arranged to second locating part and the 3rd locating part and first arcuate flanks, 165 linear contacts, first locating part and second arcuate flanks, 167 linear contacts.Those skilled in the art also possibly make other variations, but as long as its function and effect and the present invention are same or similar, all should be covered by in the protection domain of the present invention.
In the present embodiment; Identical bearing 172a, bearing 172b and the bearing 172c of being respectively of the structure of first locating part, second locating part and the 3rd locating part; The external diameter of three bearings is less than the distance between first arcuate flanks 165 and second arcuate flanks 167, and greater than the distance between the fin 169 of the fin 169 of first guiding cheekn 164 and second guiding cheekn 166.The structure of aforementioned three bearings is identical with the bearing 124 that first embodiment provides, and does not describe in detail as space is limited at this.When guard shield 154 was mounted to portable cutter 150, fin 169 can be between said three bearings and housing anterior 156.
Certainly; The size of three bearings is not limited to aforementioned description; It can also also can equal the distance between first arcuate flanks 165 and second arcuate flanks 167 for the external diameter of three bearings, at this moment first locating part, second locating part and the 3rd locating part while and first arcuate flanks 165 and second arcuate flanks, 167 linear contacts.Those skilled in the art also possibly make other variations, but as long as its function and effect and the present invention are same or similar, all should be covered by in the protection domain of the present invention.
The mounting means of bearing 172a, bearing 172b and bearing 172c also can be identical with the mounting means of bearing 124 among first embodiment; But in the present embodiment, bearing 172a, bearing 172b and bearing 172c are installed on the housing anterior 156 through screw 174a, screw 174b and screw 174c respectively.
Because aforementioned three bearings are identical with the mounting structure of three screws, only be described in detail to the fit system of screw 174a and bearing 172a at this.
Screw 174a comprises head of screw and screw tail; The screw tail can pass the bearing inner race of bearing 172a and be threaded io housing anterior 156; Bearing 172 is sandwiched between head of screw and the fin 169, thereby realizes the fixing of bearing 172a position, the in like manner position of rigid bearing 172b and bearing 172c.At this moment, the fin 169 of two arc-shaped guide rails 160 is sandwiched between the locating part of anterior 156 both sides of housing, thereby guard shield 154 can not swung with respect to housing anterior 156, and then has improved the stability in the cutting process.
When guard shield 154 was assembled to portable cutter 150, two arc-shaped guide rails 160 cooperated with the locating part of anterior 156 both sides of housing respectively, guard shield 154 is slided with respect to portable cutter 150, and saw blade host cavity 161 can be contained in anterior 156 inside of housing.In this simultaneously, the user can regulate the position of depth adjustment 90, limits the cutting-in of portable cutter 150, promptly when guard shield 154 after locating part slip certain distance, spacing preiection 168 can prop up depth adjustment 90, thereby realizes depthkeeping cutting.
See also Figure 18, when guard shield 154 is mounted to 150 last times of portable cutter, arc-shaped guide rail 160 is formed a guard shield guiding mechanism with locating part, and guard shield 154 is through the slip stable with respect to housing anterior 156 of said guard shield guiding mechanism.And said guard shield guiding mechanism integral body is positioned at tool drives axle 53 side opposite with cut direction F; Promptly between the motor in tool drives axle 53 and housing rear portion 46; Thereby make and be positioned at tool drives axle 53 and can not blocked by said guard shield guiding mechanism away from the through hole 159 of housing 42 1 sides; Thereby make the user can clearly observe the position of saw blade 56 through through hole 159; Can't receive any blocking, thereby it possesses a good visual angle, brought facility to apparatus cutting work.
Be merely one situation corresponding to the quantity of arc-shaped guide rail 160; Can be in housing anterior 156 and be positioned at position near housing 42 and said locating part is set cooperates with arc-shaped guide rail 160, said locating part comprises two locating parts at least at this moment, but preferred said locating part is three; At this moment; The guard shield guiding mechanism integral body of being made up of locating part and arc-shaped guide rail 160 is positioned at tool drives axle 53 side opposite with cut direction F, and promptly between the motor in tool drives axle 53 and housing rear portion 46, this moment, the structure of said guard shield guiding mechanism was very simple; Thereby make overall structure have the more cost at the end, and assembling easily.
Arc-shaped guide rail 160 can exchange with the position of said locating part; Be that arc-shaped guide rail 160 can be arranged at anterior 156 positions corresponding to aforementioned locating part of housing; Said locating part is installed on the guard shield 154, promptly in the position of the aforementioned arc-shaped guide rail of correspondence hold-down arm is set, and is used to install locating part.So setting also can realize the slip that guard shield 154 is stable with respect to portable cutter 150.
The quantity of locating part is not limited to aforementioned first locating part, second locating part and the 3rd locating part, and it can also comprise the 4th locating part, the 5th locating part or the like as required.
Please consult Figure 18, Figure 21 and Figure 22 in the lump.For the ease of assembling and improve assembly precision and eliminate manufacturing tolerance, at least one group in first group of locating part and the second group of locating part can possess position adjustment function, and promptly it comprises that at least one can be with respect to the locating part that laterally moves of arc-shaped guide rail 160.In the present embodiment; Be that second group of locating part possesses said position adjustment function; Be bearing 172c bearing inner race 176 and the screw tail between have the gap; Thereby make bearing 172c produce certain deviation, and then realize bearing 172c laterally being moved with respect to arc-shaped guide rail 160 with respect to the center line of screw 174.When said three bearings are installed; The position of bearing 172a and bearing 172b is fixed earlier; Make the two prop up first arcuate flanks 65 simultaneously then, laterally move with respect to arc-shaped guide rail 160 through regulating bearing 172c this moment, so that it props up second arcuate flanks 167; Realize closely cooperating between locating part and the arc-shaped guide rail 160, and eliminate manufacturing tolerance.
First group of locating part also can possess said position adjustment function; But in this embodiment; First locating part and second locating part in first group of locating part all do not possess said position adjustment function; Be that bearing 172a and bearing 172b are with the coaxial setting of screw and are fixed on the housing anterior 156, can not laterally move with respect to arc-shaped guide rail 160.So being provided with makes first locating part, second locating part and the 3rd locating part constitute a triangle; Thereby the structure that forms is very firm; When the position between needs adjusting locating part and the arc track 160 concerns; Only needs adjustment the 3rd locating part gets final product, and is simple to operate, and then offers convenience to the user.
Comprise two locating parts that can not laterally move with respect to arc-shaped guide rail 160 in the included whole locating parts of first group of locating part and second group of locating part at most, this moment is through adjustable locating part elimination tolerance.When the quantity of the locating parts that can not laterally move with respect to arc-shaped guide rail 160 that comprise when first group of locating part be two, the locating part in second group of locating part all can laterally move with respect to arc-shaped guide rail 160.When the quantity of the locating parts that can not laterally move with respect to arc-shaped guide rail 160 that comprise when first group of locating part be one, then comprise the locating parts that can not laterally move with respect to arc-shaped guide rail 160 in second group of locating part at most.In like manner, vice versa.So setting just can be eliminated manufacturing tolerance with respect to the locating part that arc-shaped guide rail 160 laterally moves through regulating, and makes the cooperation between guard shield 154 and the arc-shaped guide rail 160 more smooth and easy.
With the quantity of locating part be four for example; First group of locating part can comprise first locating part, second locating part and the 3rd locating part; Second group of locating part comprises the 4th locating part; And can adopt first locating part, second locating part and the 3rd locating part and first arcuate flanks, 165 linear contacts, the 4th locating part and second arcuate flanks, the 167 linear modes that contact.
At this moment, maximum two arc-shaped guide rail 160 lateral adjustments relatively in first group of locating part can not laterally move with respect to arc-shaped guide rail 160 such as first locating part and second locating part, and the 3rd locating part can laterally move with respect to arc-shaped guide rail 160.If said first locating part, said second locating part and said the 3rd locating part are all unadjustable; Then this moment is because the problem of the accuracy of manufacture; Be easy to occur the situation that the three can't contact with first arcuate flanks, 165 linearities simultaneously, this moment just can't be through regulating locating part with respect to the laterally mobile tolerance of eliminating of arc-shaped guide rail 160.Corresponding to having the situation that two locating parts can not be laterally mobile with respect to arc-shaped guide rail 160 in first group of locating part; The 4th locating part in second group of locating part must laterally move with respect to arc-shaped guide rail 160, so can eliminate and make the tolerance that produces.Otherwise; The 4th locating part can become a triangle with first locating part with second locating part; The length of perpendicular of being made to opposite side by the 4th locating part in this triangle is fixed; If three locating parts in this triangle are because the reason of manufacturing tolerance causes and can't contact with corresponding arc-shaped guide rail 160 sidewalls are linear simultaneously; Promptly possibly be the width of the length of vertical line less than arc-shaped guide rail 160, just can't eliminate tolerance through regulating the 3rd locating part this moment, thereby three locating parts in the said triangle are contacted with the sidewall of arc-shaped guide rail 160 is linear simultaneously.
When only having a locating part in first group of locating part can not laterally move with respect to arc-shaped guide rail 160 time; Can not laterally move with respect to arc-shaped guide rail 160 such as first locating part; Second locating part and the 3rd locating part can laterally move with respect to arc-shaped guide rail 160, and the 4th locating part in this moment second group of locating part can be arranged to and can not laterally move with respect to arc-shaped guide rail 160.The length of the line segment of usually being made up of first locating part and the 4th locating part is necessarily greater than the width of arc-shaped guide rail 160; Therefore certainly exist first locating part and the situation that the 4th locating part contacts with the sidewall linearity of arc-shaped guide rail 160 simultaneously, regulate second locating part this moment and can realize just that with the 3rd locating part four locating parts contact with the corresponding side walls of arc-shaped guide rail 160 is linear simultaneously.
When the quantity of locating part is five; First group of locating part can comprise first locating part, second locating part and the 3rd locating part; Second group of locating part comprises the 4th locating part and the 5th locating part; First group of locating part is used for and first arcuate flanks, 165 linear contacts, and second group of locating part contacts with second arcuate flanks, 167 linearities.When possessing the locating part that two or three can not laterally move with respect to arc-shaped guide rail 160 in first group of locating part, situation does not repeat to introduce at this with aforementioned description.When only comprising the locating part that can not laterally move with respect to arc-shaped guide rail 160 in first group of locating part; Can not laterally move with respect to arc-shaped guide rail 160 like first locating part, second locating part and the 3rd locating part can laterally move with respect to arc-shaped guide rail 160.Only can there be one can not laterally move in the 4th locating part in this moment second group of locating part and the 5th locating part, occurs to constitute leg-of-mutton situation with respect to the locating parts that arc-shaped guide rail 160 laterally moves avoiding by three with respect to arc-shaped guide rail 160.
In like manner; When the quantity of locating part is that six, seven or eight or the like can be provided with according to the principle of aforementioned description; Be not described in detail as space is limited at this; But, all should be covered by in the protection domain of the present invention as long as function and the present invention of its technical scheme that adopts and realization are same or similar.
Also can draw thus; In first group of locating part, select two locating parts arbitrarily; In second group of locating part, select a locating part arbitrarily; Comprise two locating parts that can not laterally move with respect to arc-shaped guide rail 160 in then said three locating parts at most, otherwise can occur can't with the corresponding arc-shaped guide rail 160 sidewalls situation of linear contact mutually, cause locating part waste or arc-shaped guide rail 160 to produce laterally to move to cause guard shield 154 to shake influencing cutting accuracy.
Certainly; Realize that locating part is not limited to aforementioned description with respect to the technical scheme that laterally is moved of arc-shaped guide rail 160, it can also be for adopting bearing and the screw fit than large diameter, perhaps bearing and the coaxial setting of screw; But the bar hole of relative arc-shaped guide rail 160 horizontal expansions is set in the position that housing anterior 156 is installed said screw; In anterior 156 inboards of housing screw cap is set and is connected, slide in said bar hole through screw and realize position adjustments or the like, as space is limited at this with said screw thread; Do not carry out exhaustive to the structure that realizes aforementioned functional; But those skilled in the art are under technical spirit of the present invention enlightenment, made with the same or analogous technical scheme of functional structure of the present invention, all should be covered by in the protection domain of the present invention.
Aforementioned structure is not limited to first group of locating part and first arcuate flanks, 165 linear contacts; Second group of locating part contacts with second arcuate flanks, 167 linearities; It can also be arranged to first group of locating part and second arcuate flanks, 167 linear contacts, and second group of locating part contacts with first arcuate flanks, 165 linearities.Promptly when assembling; At first first group of locating part is mounted on the arc-shaped guide rail 160; And make it against living second arcuate flanks 167, again second group of locating part is mounted to arc-shaped guide rail, and makes it against first arcuate flanks 165 through the position of regulating second group of locating part.So be provided with and make structure more flexible, provide more choices to assembly process.
Moreover; The mode that locating part cooperates with guide rail among the present invention is not limited to arc-shaped guide rail; Also can adopt the scheme among the present invention along linearly extended guide rail; Mounting means and fit structure all with embodiment of the present invention in the technical scheme put down in writing same or similar, do not describe in detail as space is limited at this.
See also Figure 18 and Figure 23, the housing of portable cutter 150 anterior 156 and saw blade 56 planes vertical sidewall be provided with laser alignment device 178, be used to the user and in the cut workpiece process, laser guide be provided.Also be provided with dust-exhausting port 180 at housing anterior 156, it is positioned on the sidewall with housing anterior 156 and saw blade 56 plane parallel, and is positioned at the side of tool drives axle 53 away from housing 42.
The present invention is not limited to aforementioned embodiments, and those skilled in the art also possibly make other changes under the enlightenment of technical spirit of the present invention, but as long as function and the present invention of its realization are same or similar, all should be covered by in the protection domain of the present invention.
Claims (10)
1. portable cutter comprises:
The saw blade that is used for cut workpiece and has cut direction;
Be used to install the tool drives axle of said saw blade;
Housing;
Movably be installed on the guard shield on the said housing; This guard shield is provided with the saw blade through hole and is used to make that saw blade therefrom passes; This guard shield movably moves between the primary importance and the second place with respect to said housing, and when guard shield was positioned at primary importance, said saw blade did not pass from the saw blade through hole; When guard shield was positioned at the second place, said saw blade passed from said saw blade through hole;
Be provided with the guard shield guiding mechanism between said guard shield and the said housing, it is characterized in that: said guard shield guiding mechanism integral body is positioned at a said tool drives axle side opposite with said cut direction.
2. portable cutter according to claim 1 is characterized in that: said guard shield guiding mechanism comprises the guide rail that is arranged on of said guard shield and the said housing, and the locating part on another among both.
3. portable cutter according to claim 2 is characterized in that: the position of the corresponding said saw blade through hole of said guard shield is equipped with the saw blade host cavity, and the position that said saw blade host cavity closes on said saw blade through hole is provided with through hole.
4. portable cutter according to claim 3; It is characterized in that: said guard shield comprises the guard shield bottom that said saw blade through hole is set; Said guard shield bottom has can be against the abutment face of workpiece, and said tool drives axle is positioned at said through hole and the said guard shield guiding mechanism centre position in said abutment face projection in the projection of said abutment face.
5. portable cutter according to claim 4; It is characterized in that: two perpendicular outside of the axis of said housing and said tool drives axle are respectively arranged with said locating part; The quantity of said guide rail is two, and the said locating part with said housing both sides cooperates respectively.
6. portable cutter according to claim 5 is characterized in that: said guide rail is an arc-shaped guide rail, and the center of circle of arc is positioned at outside the said portable cutter and away from the side at said housing rear portion.
7. portable cutter comprises:
Motor;
The saw blade that is used for cut workpiece;
Be used to install said saw blade and by said motor-driven tool drives axle;
Housing comprises housing front portion that said tool drives axle is installed and the housing rear portion of accommodating said motor;
Movably be installed on the guard shield on the said housing front portion; This guard shield is provided with the saw blade through hole and is used to make that saw blade therefrom passes; This guard shield movably moves between the primary importance and the second place with respect to said housing, and when guard shield was positioned at primary importance, said saw blade did not pass from the saw blade through hole; When guard shield was positioned at the second place, said saw blade passed from said saw blade through hole;
Be provided with the guard shield guiding mechanism between said guard shield and the said housing, it is characterized in that: said guard shield guiding mechanism integral body is between said tool drives axle and said motor.
8. portable cutter according to claim 7 is characterized in that: said guard shield guiding mechanism comprises the guide rail that is arranged on of said guard shield and the said housing, and the locating part on another among both.
9. portable cutter according to claim 8 is characterized in that: the position of the corresponding said saw blade through hole of said guard shield is equipped with the saw blade host cavity, and the position that said saw blade host cavity closes on said saw blade through hole is provided with through hole.
10. portable cutter according to claim 9; It is characterized in that: said guard shield comprises the guard shield bottom that said saw blade through hole is set; Said guard shield bottom has can be against the abutment face of workpiece, and said tool drives axle is positioned at said through hole and the said guard shield guiding mechanism centre position in said abutment face projection in the projection of said abutment face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010297621.2A CN102407381B (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010297621.2A CN102407381B (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
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| CN102407381A true CN102407381A (en) | 2012-04-11 |
| CN102407381B CN102407381B (en) | 2014-06-04 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014008873A1 (en) * | 2012-07-13 | 2014-01-16 | 苏州宝时得电动工具有限公司 | Portable cutting tool |
| CN103537753A (en) * | 2012-07-13 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN103537752A (en) * | 2012-07-13 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN104107949A (en) * | 2013-04-17 | 2014-10-22 | 苏州宝时得电动工具有限公司 | Electric circular saw |
| CN108367368A (en) * | 2015-12-09 | 2018-08-03 | 株式会社天田控股集团 | Annular saw can be inhibited to chatter dynamic circular saw bench |
| CN109202172A (en) * | 2017-06-30 | 2019-01-15 | 苏州宝时得电动工具有限公司 | Portable electric annular saw |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177868A2 (en) * | 2000-05-12 | 2002-02-06 | Exakt Precision Tools Limited | Safety improvements for power tool |
| CN2885469Y (en) * | 2006-03-29 | 2007-04-04 | 王骥 | Work mechanism of cutting machine |
| CN101085478A (en) * | 2007-02-12 | 2007-12-12 | 王骥 | Composite saw with protecting cover opening device |
| CN201098810Y (en) * | 2007-06-12 | 2008-08-13 | 墩丰机械工业股份有限公司 | Foldable eye protecting cover supporting board device |
| CN201353800Y (en) * | 2009-02-06 | 2009-12-02 | 苏州宝时得电动工具有限公司 | Portable circular saw |
| CN201519800U (en) * | 2009-09-24 | 2010-07-07 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN201543903U (en) * | 2009-09-24 | 2010-08-11 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
-
2010
- 2010-09-21 CN CN201010297621.2A patent/CN102407381B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177868A2 (en) * | 2000-05-12 | 2002-02-06 | Exakt Precision Tools Limited | Safety improvements for power tool |
| CN2885469Y (en) * | 2006-03-29 | 2007-04-04 | 王骥 | Work mechanism of cutting machine |
| CN101085478A (en) * | 2007-02-12 | 2007-12-12 | 王骥 | Composite saw with protecting cover opening device |
| CN201098810Y (en) * | 2007-06-12 | 2008-08-13 | 墩丰机械工业股份有限公司 | Foldable eye protecting cover supporting board device |
| CN201353800Y (en) * | 2009-02-06 | 2009-12-02 | 苏州宝时得电动工具有限公司 | Portable circular saw |
| CN201519800U (en) * | 2009-09-24 | 2010-07-07 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN201543903U (en) * | 2009-09-24 | 2010-08-11 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
Cited By (14)
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|---|---|---|---|---|
| CN103537754B (en) * | 2012-07-13 | 2016-10-05 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN106424920A (en) * | 2012-07-13 | 2017-02-22 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN103537752A (en) * | 2012-07-13 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| CN103537754A (en) * | 2012-07-13 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| US11192270B2 (en) | 2012-07-13 | 2021-12-07 | Positec Power Tools (Suzhou) Co., Ltd. | Portable cutting tool |
| US10189174B2 (en) | 2012-07-13 | 2019-01-29 | Positec Power Tools (Suzhou) Co., Ltd. | Portable cutting tool |
| CN103537753A (en) * | 2012-07-13 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Portable cutting machine |
| WO2014008873A1 (en) * | 2012-07-13 | 2014-01-16 | 苏州宝时得电动工具有限公司 | Portable cutting tool |
| CN103537752B (en) * | 2012-07-13 | 2016-10-05 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN104107949B (en) * | 2013-04-17 | 2016-08-17 | 苏州宝时得电动工具有限公司 | A kind of electrotrephine |
| CN104107949A (en) * | 2013-04-17 | 2014-10-22 | 苏州宝时得电动工具有限公司 | Electric circular saw |
| CN108367368A (en) * | 2015-12-09 | 2018-08-03 | 株式会社天田控股集团 | Annular saw can be inhibited to chatter dynamic circular saw bench |
| CN108367368B (en) * | 2015-12-09 | 2020-01-07 | 株式会社天田控股集团 | Circular sawing machine capable of inhibiting circular saw blade from vibrating |
| CN109202172A (en) * | 2017-06-30 | 2019-01-15 | 苏州宝时得电动工具有限公司 | Portable electric annular saw |
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