CN101863047B - Portable cutting machine - Google Patents
Portable cutting machine Download PDFInfo
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- CN101863047B CN101863047B CN2009101378083A CN200910137808A CN101863047B CN 101863047 B CN101863047 B CN 101863047B CN 2009101378083 A CN2009101378083 A CN 2009101378083A CN 200910137808 A CN200910137808 A CN 200910137808A CN 101863047 B CN101863047 B CN 101863047B
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- guard shield
- cutting blade
- sidewall
- diapire
- portable cutter
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Abstract
The invention provides a portable cutting machine, which comprises a cutting blade, a working head shell, a shield and a cutting blade indication device. The cutting blade is used for processing workpieces; the working head shell is used for partially accommodating the cutting blade; the shield is arranged on the working head shell and can move between a first position and a second position relative to the working head shell, and the shield is provided with a cutting blade through hole used for allowing the cutting blade to pass through; when the shield is positioned at a first position, the cutting blade does not pass through the cutting blade through hole, and when the shield is positioned at the second position, the cutting blade passes through the cutting blade through hole; the cutting blade indication device is used for indicating at least one of the foremost end and the rearmost end of the cutting blade, which are exposed from the cutting blade through hole when the shield is positioned at the second position; and the cutting blade indication device is movably arranged on the shield, and when the shield is positioned at the second position, the cutting blade indication device corresponds to at least one of the foremost end and the rearmost end of the cutting blade, which are exposed from the cutting blade through hole.
Description
Technical field
The present invention relates to a kind of portable cutter, especially relate to a kind of portable cutter with cutting blade indicating device.
Background technology
Portable cutter generally includes the cutting blade that is used for processing work; Guard shield is used for accommodating cutting blade; Guard shield is provided with opening and is used to make that cutting blade therefrom passes; Thereby depth adjustment mechanism is used for regulating the depth of cut that cutting blade is exposed to the amount adjusting cutting blade of guard shield opening; This portable cutter is typically provided with the cutting blade indicating device, after having set up the degree of depth, the cutting blade indicating device be commonly used to indicate the cutting blade that under this certain depth, is exposed to the guard shield opening foremost and rearmost end.
Disclosed a kind of cutting blade indicating device of portable cutter for U.S. Pat 6757982B2 number; The cutting blade indicating device of this portable cutter comprises the scale that is arranged on the guard shield; Arranging of this scale is directly corresponding with the rule of depth adjustment; After the degree of depth of having set up certain value, just can directly find out from the scale of cutting blade indicating device the cutting blade that is exposed to the guard shield opening foremost and rearmost end.
Disclosed a kind of cutting blade indicating device of portable cutter for European patent EP 0788421B1 number; The cutting blade indicating device of this portable cutter comprises the camber line that is arranged on the main part and is arranged at the vertical curve on the guard shield; Guard shield can move with respect to main part; After having set up the degree of depth; Mobile guard shield makes cutting blade from the guard shield opening, fully expose, and the vertical curve that is arranged at this moment on the guard shield intersects with the camber line that is arranged on the main part, the intersection point of vertical curve and camber line be exactly cutting blade foremost and rearmost end.
More than the cutting blade indicating device that disclosed in two preceding cases in use all need corresponding scale value of the very careful observation of operator or intersection point, this indicating device is very not directly perceived, and in the use, than being easier to misjudgment.
Summary of the invention
Technical problem to be solved by this invention provides a kind of portable cutter, and this portable cutter has more intuitive cutting blade indicating device.
In order to address the above problem, to the invention provides a kind of portable cutter and comprise:
The cutting blade that is used for processing work;
The working head housing is used for the said cutting blade of accommodating of part;
Guard shield is installed on the said working head housing, and can between the primary importance and the second place, move with respect to the working head housing, and said guard shield is provided with the cutting blade through hole and is used to make that cutting blade therefrom passes; When guard shield was positioned at primary importance, cutting blade did not pass from the cutting blade through hole, and when guard shield was positioned at the second place, cutting blade passed from the cutting blade through hole;
The cutting blade indicating device be used for when guard shield is in the second place cutting blade that indication exposes from the cutting blade through hole foremost with rearmost end at least one;
Said cutting blade indicating device movably is installed on the guard shield, when guard shield is positioned at the second place, this cutting blade indicating device and the cutting blade that from the cutting blade through hole, exposes foremost with rearmost end at least one is corresponding.
In disclosed portable cutter because the cutting blade indicating device is movably to be installed on the guard shield, can compare so directly perceived, thereby make in the operating process and can guarantee the accuracy of processing than being easier to judgement.
Preferred implementation of the present invention also below several kinds:
Preferably, cutting blade indicating device of the present invention comprises indicator collet, and this indicator collet is used for when guard shield is positioned at the second place cutting blade that indication exposes from the cutting blade through hole foremost.
Preferably, cutting blade indicating device of the present invention comprises indicator collet, and this indicator collet is used for when guard shield is positioned at the second place rearmost end of the cutting blade that indication exposes from the cutting blade through hole.
Preferably, cutting blade indicating device of the present invention comprises at least two indicator collets, these at least two indicator collets be used for when guard shield is positioned at the second place, indicating respectively the cutting blade that exposes from the cutting blade through hole foremost and rearmost end.
Preferably, guard shield of the present invention comprises the guard shield sidewall, and said cutting blade has the cutting blade plane, and said guard shield sidewall comprises two, and these two guard shield sidewalls are distributed in the both sides on cutting blade plane, and said cutting blade indicating device is installed on these two guard shield sidewalls.
Preferably; Guard shield of the present invention comprises guard shield sidewall and guard shield diapire, and the guard shield sidewall comprises two, and these two guard shield sidewalls are distributed in the both sides on cutting blade plane; Said opening is located on the guard shield diapire, and said cutting blade indicating device movably is installed between guard shield sidewall and the guard shield diapire.
Preferably; Cutting blade indicating device of the present invention comprises can be along the indicator collet of shroud move, and this indicator collet comprises main part and indication portion, is provided with the gap between said main part and the indication portion; The guard shield sidewall is contained in this gap; The guard shield sidewall has the outside and inboard, and indication portion is positioned at the outside of guard shield sidewall, and body section is in the inboard of guard shield sidewall.
Preferably, the end place near the guard shield diapire on two guard shield sidewalls of the present invention is provided with first guide groove and second guide groove respectively, and said cutting blade indicating device comprises that several indicator collets are installed on respectively on first guide groove and second guide groove.
Preferably, establish accepting hole on the main part of the present invention, be provided with spring and bullet in the said accepting hole, an end of spring is against main part, and the other end of spring is against bullet, and an end of bullet is compressed by spring, and the other end of bullet is a tapering point.
Preferably, guard shield of the present invention bottom comprises medial surface and lateral surface, and the medial surface of guard shield bottom is provided with the pit row of being made up of some pits, and the tapering point of said bullet arbitrary pit exercisable and during this pit is listed as cooperates.
Preferably, indication of the present invention portion is provided with index line, and this index line is vertical with the guard shield diapire.
Preferably, guard shield diapire of the present invention comprises medial surface and lateral surface, and the lateral surface of guard shield diapire is provided with some mark lines, and these some mark lines are parallel to each other and are vertical with the cutting blade plane, and the exercisable and said mark line of said index line is aimed at.
Preferably, indication of the present invention portion is provided with boss, and said guard shield sidewall is provided with guide groove, and said boss is contained in the said guide groove, and can move along said guide groove.
Preferably; Link to each other through connecting portion between main part of the present invention and the said indication portion; When indicator collet was installed on the guard shield, said connecting portion was between guard shield sidewall and guard shield diapire, and connecting portion and guard shield diapire laterally arrange; When indicator collet is not installed on the guard shield, acutangulate setting between indication portion and the guard shield diapire.
Preferably, indicator collet of the present invention is processed by elastomeric material.
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 A is the stereogram of the guard shield of the portable cutter that Fig. 1 disclosed.
The stereogram that Fig. 4 B sees from another angle for the guard shield among Fig. 4 A.
Fig. 5 is the stereogram of portable cutter when cutting blade exposes guard shield that Fig. 1 disclosed.
Fig. 6 A is the three-dimensional exploded view of the portable cutter that Fig. 1 disclosed.
When Fig. 6 B does not install guard shield for portable cutter that Fig. 1 disclosed from another stereogram of looking sideways.
The portable cutter that Fig. 6 C is disclosed for Fig. 6 A is at the partial enlarged drawing at A place.
Fig. 7 is portable cutter that Fig. 1 the disclosed stereogram when the position that spanner is in out.
Fig. 8 A is the stereogram of the stop block of the portable cutter that Fig. 7 disclosed.
The stereogram that Fig. 8 B sees from another angle for the stop block of the portable cutter that Fig. 7 disclosed.
Cut-away view when Fig. 9 is opened for portable cutter that Fig. 1 disclosed is equipped with guard shield and gear-box.
Figure 10 is the sketch map of the resilience mechanism of the portable cutter that Fig. 1 disclosed.
Figure 11 for the guard shield diapire of the portable cutter that Fig. 1 disclosed from the sketch map of guard shield sidewall separately the time.
Figure 12 is the three-dimensional exploded view of the cutting blade indicating device of the portable cutter that Fig. 1 disclosed.
Figure 13 for portable cutter that Fig. 1 disclosed along A1-A1 to profile.
Figure 14 for portable cutter A2-A2 that Figure 13 disclosed to profile.
The stereogram that Figure 15 sees from the another one angle for the portable cutter that Fig. 1 disclosed.
Figure 16 is the sketch map of portable cutter in operating process that Fig. 1 disclosed.
Figure 17 is the sketch map of the cutting indicating device of the portable cutter that second embodiment of the invention disclosed.
Among the figure:
20. portable cutter 22. housings 24. working head housings
26. motor shell 28. first ends 30. second ends
X. the angle of motor shell longitudinally extending axis Y. working head housing longitudinal extension a.X and Y
Bobbin thread
32. power line 34. cutting blades 36. motors
36a. motor output shaft 36b. fan 36c. electric machine support
37. switch 38. wind holes 42. gear-boxes
44. gear box casing 46. gear transmission mechanisms 48. guard shields
50. guard shield diapire 52a-d. guard shield sidewall 54. cutting blade through holes
56. cavity 57. top edge 58a-d. arc grooves
58. first guide groove, 60. second guide grooves, 62. openings
64. dust cap 66. cutting blade indicating device 68a-d. working head housing sidewall
70. spherical 72. pins 74. grooves
74a. hemispherical groove 74b. cylindrical recesses 76. cutting blade fasteners
78. opening 80. depth adjustment 82. stopper
84. substrate 85. lug bosses 86. protruded stigmas
88. pin 90. spanners 92. operating portions
94. connecting portion 96. cam bits 98. through holes
100. cam surface 102. pointers 104. stop faces
106. arc opening 107. scale values 108. fixed parts
110. indication portion 112. connecting portions, 114. first cam surfaces
116. second cam surface, 118. resilience mechanisms, 120. helical springs
122. pin 124. pilot holes 126. diameters are than small end
128. bigger end 130. grabs of diameter 132. fixture blocks
134. medial surface 136. lateral surfaces 138. indicator collets
140. main part 142. indication portions 144. gaps
146. accepting hole 148. helical springs 150. bullets
152. cylinder 154. tapering points 155. index lines that diameter is less
156. pit row 158. line of weakness 160. lines of cut
162. dead line 138a. indicator collet 140a. main part
142a. the 143a. of indication portion connecting portion 144a. gap
158. boss 160. guide grooves
The specific embodiment
With reference to Fig. 1, a kind of portable cutter 20 comprises housing 22, and this housing 22 comprises working head housing 24 and motor shell 26.Housing 22 can be a moulding, and can be made up of two and half shells.Motor shell 26 comprises first end 28 and second end, 30, the first ends 28 and working head housing 24 adjacency, and second end 30 is away from working head housing 24 and be connected with power line 32 usually.
With reference to Fig. 2; Motor shell 26 roughly linearly extends; The longitudinal extending axis of motor shell 26 is X, and working head housing 24 extends from first end, 28 relative motor shell 26 bendings of motor shell 26, and the longitudinal extending axis of working head housing 24 is Y; The angle a of the longitudinal extending axis X of the longitudinal extending axis Y of working head housing 24 and motor shell 26 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 20 comprises and is used for the cutting blade 34 and the motor that is used for driving this cutting blade 34 of processing work, and motor is a motor 36 in this embodiment, and the motor here also can be hydraulic pressure or pneumatic certainly.Motor 36 is contained in the motor shell 26, thereby motor 36 can be connected on the AC power (not shown) with power line 32 electric connections, and motor 36 also can be to supply power through dc-battery certainly.Portable cutter 20 also comprises switch 37, and switch 37 electrically connects with motor 36 and is used for controlling the unlatching of motor 36 and stopping.
First end, 28 places that motor 36 closes on motor shell 26 are provided with motor output shaft 36a, and fan 36b is installed on the motor output shaft 36a, and motor 36 closes on motor shell 26 second ends 30 places and is provided with electric machine support 36c and is used for motor 36 is supported in motor shell 26.On the motor shell 26 near first end 28 be equipped with wind hole 38 near second end, 30 places and be used for cooling motor 36.
The plane at cutting blade 34 places is the cutting blade plane; The cutting blade plane almost parallel of motor output shaft 36a and cutting blade 34 is used for transmission of power to the cutting blade 34 of motor 36 is driven cutting blade 34 motions thereby between motor output shaft 36a and cutting blade 34, be provided with transmission mechanism.In the present embodiment, transmission mechanism is a gear-box 42, and gear-box 42 comprises gear box casing 44 and gear transmission mechanism 46 (with reference to Fig. 9); Gear transmission mechanism 46 can be the worm and gear transmission; Also can be Bevel Gear Transmission, in the present embodiment, gear transmission mechanism be worm and gear transmission (with reference to Fig. 9); Gear-box 42 is contained in the working head housing 24, and the top of cutting blade 34 is contained in the working head housing 24.
With reference to Fig. 1, Fig. 4 A, Fig. 4 B and Figure 10; Portable cutter 20 comprises guard shield 48, guard shield 48 around surround working head housing 24, guard shield 48 comprises guard shield diapire 50; Guard shield diapire 50 contacts with surface of the work in the course of work; Four guard shield sidewall 52a-d surround and extend upward from guard shield diapire 50 in a week, and guard shield diapire 50 is provided with cutting blade through hole 54, and cutting blade through hole 54 is used to make cutting blade 34 therefrom to pass; Four guard shield sidewall 52a-d and guard shield diapire 50 form cavitys 56, and cavity 56 is used for accommodating the bottom of working head housing 24 and cutting blade 34.Guard shield sidewall 52a comprises a top edge 57, and the top edge 57 of sidewall 52a is a limit away from guard shield diapire 50.The concrete effect of top edge 57 can be described in detail in the back.The end place that sidewall 52a goes up near guard shield diapire 50 is provided with first guide groove 58, and the end place that sidewall 52b goes up near guard shield diapire 50 is provided with second guide groove 60.
With reference to Fig. 1 and Fig. 5; Be connected with the mating part (about arc track and mating part through arc-shaped guide rail between guard shield 48 and the working head housing 24; The back can be described in detail); Arc-shaped guide rail is located among both one of guard shield 48 and working head housing 24, and the mating part is located among both another of guard shield 48 and working head housing 24.The mating part cooperates with arc-shaped guide rail and can move along arc-shaped guide rail.The mating part is moved along arc-shaped guide rail and is made guard shield 48 relative working head housings 24 movably from the primary importance to the second place, and when guard shield 48 was positioned at primary importance, cutting blade 34 did not expose (with reference to Fig. 1) from cutting blade through hole 54.When guard shield 48 is positioned at the second place, cutting blade 34 at least part from cutting blade through hole 54, expose (with reference to Fig. 5), at this moment, portable cutter 20 can be used to processing work.
Further with reference to Fig. 4 A and Fig. 4 B, guard shield sidewall 52a and 52b be over against setting, and guard shield sidewall 52c and 52d be over against setting, and be installed on housing anterior 24 last times when guard shield 48, guard shield sidewall 52a and 52b and cutting blade 34 almost parallels, and be positioned at the both sides of cutting blade 34.In the present embodiment, arc-shaped guide rail is the arc groove 58a that is located on the inner surface of guard shield sidewall 52a, 58b and be located at the arc groove 58c on the inner surface of guard shield sidewall 52b, 58d.Arc groove 58a-d roughly extends from guard shield diapire 50 obliquely.Arc groove 58a-d is provided with along the circumferential direction of guard shield sidewall 52a and 52b inner surface at interval.The center of circle that the circular arc at arc groove 58a place is corresponding is the same center of circle with the corresponding center of circle of circular arc that arc groove 58b belongs to.The center of circle that the circular arc at arc groove 58c place is corresponding is the same center of circle with the corresponding center of circle of circular arc that arc groove 58d belongs to.
With reference to Fig. 6 A; Fig. 6 B and Fig. 6 C; Working head housing 24 comprises four working head housing sidewall 68a-d; Respectively with the corresponding cooperation of four guard shield sidewall 52a-d of guard shield 48, in the present embodiment, the mating part is located on the outer surface of working head housing sidewall 68a and 68b and with arc groove 58a-d and is cooperated.It is protruding that the mating part is generally, and convexity is contained in the arc groove 58a-d and can moves within it.
In the present embodiment, the mating part comprises spherical 70, and the center of spherical 70 is provided with through hole; Pin 72 passes through hole; Pin 72 two ends are exposed to through hole, and cooperating between the through hole of pin 72 and spherical 70 is matched in clearance, thereby makes that spherical 70 can be around pin 72 rotations; Working head housing sidewall 68a and 68b are provided with the groove 74 that is used for accommodating the mating part; The mid portion of groove 74 is hemispherical groove 74a, and what be used for part accommodates spherical 70, and the two ends of groove 74 are provided with the cylindrical recesses 74b that is complementary with the two ends shape of exposing the pin 72 of through hole.Being contained in the hemispherical groove 74a of spherical 70 parts, the two ends of pin 72 are contained in the cylindrical recesses 74b, between spherical 70 and the hemispherical groove 74a certain clearance are arranged, and this docked mode makes spherical 70 in hemispherical groove 74a, to rotate.In this embodiment, be interference fit between the two ends of pin 72 and the cylindrical recesses 74b, thereby make that whole mating part can not be easy to fall down from working head housing 24.
Certainly can be to be fixedly connected between pin 72 and the spherical 70, and also can be matched in clearance between pin 72 two ends and the cylindrical recesses 74b, feasible pin 72 and spherical 70 rotate together.
Working head housing sidewall 68a-d comprises working head housing sidewall outer surface, and when guard shield 48 is installed on 24 last times of working head housing, the outer surface of the inner surface of the sidewall 52a-d of guard shield 48 and the sidewall 68a-d of working head housing 24 is adjacent.The mating part is located on the working head housing sidewall 68a-b outer surface; The mating part of being located on the working head housing sidewall 60a outer surface has four; These four mating portions are two groups; Every group comprises two; Arrange two mating parts in every group direction of roughly paralleling of the bearing of trend of the edge arc groove 58a-b corresponding with it respectively, is provided with at interval along anterior 24 circumferential direction of housing working head housing between two groups of mating parts, and each organizes mating part and the corresponding setting of the arc groove 58a-b that is located at guard shield 48 inner surfaces.60a is identical with sidewall, corresponding with the arc groove 58c-d respectively setting of the two assembly portions of connecing that also are provided with on the sidewall 60b.
Further with reference to Fig. 6 A, portable cutter 20 comprises the cutting blade fastener 76 that is used for fixing cutting blade 34, and in this embodiment, cutting blade fastener 76 is a bolt nut structure.Working head housing 24 sidewall 68a are provided with opening 78, expose the opening 78 of cutting blade fastener 76 from sidewall 68a, can make that like this replacing cutting blade is more convenient.When off position, promptly when guard shield 48 was in primary importance, the opening 62 on the guard shield 48 was aimed at the opening 78 on the working head housing sidewall 68a and is made that replacing cutting blade 34 is more convenient.
With reference to Fig. 7, Fig. 8 A and Fig. 8 B, portable cutter 20 comprises that depth adjustment 80 is used for regulating depth of cut, and depth adjustment 80 comprises stopper 82, and stopper 82 movably is installed on the anterior sidewall 68a of housing.
Be fixedly coupled a pointer 102 on one end of lug boss 85, pointer 102 is used for indicating the degree of depth of setting.The other end of lug boss 85 is provided with a stop face 104.
Working head housing sidewall 68a is provided with arc opening 106, and bearing of trend and the radian of the bearing of trend of arc opening 106 and radian and arc groove 58a-d are roughly the same.Stopper 82 can be slided along arc opening 106.Working head housing sidewall 68a is an inside sidewalls towards a side of gear-box 42, with the inboard relative other side of working head housing sidewall be outside.Corresponding with the outer surface of working head housing sidewall 68a, the one side inboard towards the working head housing sidewall is the inner surface of working head housing sidewall 68a.Substrate 84 is positioned at the inboard of working head housing sidewall 68a, the abutment of upper surface of substrate 84 (indicating) and working head housing sidewall 68a.Spanner 90 is positioned at the outside of working head housing sidewall 60a, and protruded stigma 86 is stuck in the arc opening 106 with lug boss 85 and can moves along arc opening 106.One side of arc opening 106 indicates scale value 107, and this scale value 107 is represented the cutting blade degree of depth.
The cam surface of being located on the spanner 90 100 contacts with working head housing sidewall 68a outer surface.Cam surface 100 comprises first cam surface 114 and second cam surface 116.When first cam surface 114 contacted with working head housing sidewall 68a outer surface, spanner was in released state, and this moment, stopper 82 can move along arc opening 106.When second cam surface 116 contacted with working head housing sidewall 68a outer surface, spanner 90 was in locking state, and this moment, stopper 82 was fixed with respect to working head housing sidewall 68a, and stopper 82 is not removable with respect to arc opening 106.
In the work, when needing to regulate the degree of depth, lift spanner 90 earlier; The position that spanner 90 is in out; This moment, first cam surface 114 contacted with working head housing sidewall 68a outer surface, along arc opening 106 slip stopper 82, and the deep calibration value 107 that pointer 102 sensings are needed.After having set up the degree of depth, depress spanner 90, make spanner 90 be in the position of closing, this moment, second cam surface 116 contacted with working head housing sidewall 68a outer surface, and this moment, stopper 82 was locked in a certain position of arc opening 106.During cut workpiece; Being pressed on the surface of the work of guard shield diapire 50 parts; The operator holds motor shell 26, and imposes on 26 1 pressure of motor shell, and this moment, housing 22 relative guard shields 48 were along arcuate movement; Contact with stop face 104 on the stopper 82 until the top edge 57 of guard shield 48, expose the cutting blade 34 of the certain depth of guard shield 48 and just can process.
With reference to Fig. 9 and Figure 10, portable cutter 20 comprises resilience mechanism 118, and this resilience mechanism 118 is used to make the relative housing of guard shield 48 22 to move to primary importance from the second place.This resilience mechanism 118 comprises helical spring 120 and pin 122.Gear box casing 44 is provided with pilot hole 124 and is used for accommodating helical spring 120 and part pin 122; One end of helical spring 120 props up gear box casing 44; Pin 122 comprises that a diameter is than small end 126 and the bigger end 128 of diameter; Diameter is than being arranged with helical spring 120 on the small end 126, the bigger end 128 of diameter is against guard shield diapire 50, and helical spring 120 compresses power for 122 1 on pin towards the direction of guard shield diapire 50.Pilot hole 124 is an arc, and the radian in this arcuate guide hole 124 and the radian of arc-shaped guide rail are roughly the same, and pin 122 also is an arc simultaneously, and the shape in its shape and arcuate guide hole 124 is complementary.
With reference to Figure 11; Guard shield diapire 50 dismountable being connected on the guard shield sidewall 52a-d; Guard shield diapire 50 is provided with grab 130, and guard shield sidewall 52a-d is provided with fixture block 132, and grab 130 cooperates with fixture block 132 can be so that guard shield diapire 50 be connected on the guard shield sidewall 52a-d.Guard shield diapire 50 comprises medial surface 134 and lateral surface 136, and medial surface 134 is matched with guard shield sidewall 52a-d, and lateral surface 136 is used for contacting with workpiece to be processed.
Cutting blade indicating device 66 be used for when guard shield 48 is in the second place cutting blade 34 that indication exposes from cutting blade through hole 54 foremost and rearmost end.Cutting blade indicating device 66 comprises at least one indicator collet 138, this at least one indicator collet 138 be used for when guard shield 48 is positioned at the second place indication be exposed to cutting blade through hole 54 cutting blade 34 foremost or at least one of the rearmost end of cutting blade 34.In this embodiment, cutting blade indicating device 66 comprises four indicator collets 138, wherein has two indicator collets 138 to be used to indicate cutting blade 34 foremost, and two other indicator collet 138 is used to indicate the rearmost end of cutting blade 34.The embodiment that other can certainly be arranged, for example the cutting blade indicating device includes only and is used to indicate cutting blade foremost or the indicator collet of rearmost end.In this embodiment, be used to indicate cutting blade 34 two indicator collets 138 foremost to be installed on first guide groove 58 and second guide groove 60 a end respectively near sidewall 52d; Be used to indicate two indicator collets 138 of cutting blade rearmost end to be installed on first guide groove 58 and second guide groove 60 a end respectively near sidewall 52c.
With reference to Figure 12 and Figure 13, indicator collet 138 roughly takes the shape of the letter U, one side U-shaped indicator collet 138 is main part 140; The another side of U-shaped indicator collet 138 is an indication portion 142, is provided with certain clearance 144 between main part 140 and the indication portion 142, guard shield sidewall 52a; 52b is accommodated in this gap 144, and the size in this gap 144 makes that working as indicator collet 138 is installed on guard shield sidewall 52a, after 52b is last; Indicator collet 138 can be along guard shield sidewall 52a, and 52b moves.Main part 140 is located at guard shield sidewall 52a, the inboard of 52b, and indication portion 142 is located at guard shield sidewall 52a, the outside of 52b.Main part 140 is provided with accepting hole 146, is provided with helical spring 148 and bullet 150 in the accepting hole 146, and an end of helical spring 148 is against the inwall of main part 140, and the other end of helical spring 148 is against bullet 150.Bullet 150 has a cylinder 152 that diameter is less near an end of helical spring 148; Helical spring 148 is sheathed on the less cylinder of this diameter 152; The other end of bullet 150 is a tapering point 154, and this tapering point 154 is against the medial surface 134 of living guard shield diapire 50.The outer surface of indication portion 142 is provided with index line 155, and index line 155 is approximately perpendicular to guard shield diapire 50.
With reference to Figure 14, be respectively equipped with the pit row 156 that are in-line arrangement that two row are made up of some pits on the medial surface 134 of guard shield diapire 50, the tapering point 154 of bullet 150 movably with pit row 156 in arbitrary pit cooperate.The bearing of trend of each pit row 156 and cutting blade plane almost parallel.
Further with reference to Figure 11; The lateral surface 136 of guard shield diapire 50 is provided with some mark lines; Mark line is a line of weakness 158 in this embodiment; These some line of weakness 158 are parallel to each other, every line of weakness 158 all with cutting blade plane approximate vertical, the index line 155 in the indication portion 142 is movably aimed at arbitrary line of weakness.
With reference to Figure 15 and Figure 16, during work, set up the degree of depth by preceding method earlier; Press guard shield diapire 50; Make the cutting blade through hole 54 of cutting blade 34 from guard shield diapire 50 and expose, the cutting blade 34 that observation is exposed from cutting blade through hole 54 is seen with which bar line of weakness 158 aiming at foremost of cutting blade 34 foremost; Stir the indication portion 142 of indicator collet 138 with hand; Move indication portion 142 along first guide groove 58, the index line 155 in indication portion 142 is aimed at the line of weakness 158 corresponding foremost with cutting blade 34, unclamps indicator collet 138; The tapering point 154 that is contained in the bullet 150 in the main part 140 this moment be located at guard shield diapire 50 medial surfaces 134 on pit row 156 in some pits cooperate, indicator collet 138 is by the stable suitable position that places at this moment.Cooperation through tapering point 154 and pit can make in the course of the work, and indicator collet 138 is difficult for being subjected to displacement because of vibrations, thereby guarantees the accuracy of cutting.Through same method; Can other indicator collets 138 also be transferred to the position that needs, the index line 155 that for example another one is used to indicate cutting blade 34 indicator collet 138 foremost to be transferred to and makes on this indicator collet 138 is aimed at the line of weakness 158 corresponding foremost with cutting blade 34.Equally, be used to indicate the indicator collet 138 of cutting blade 34 rearmost ends to be transferred to the index line 155 alignings line of weakness 158 corresponding that makes on this indicator collet 138 with two that are left with cutting blade 34 rearmost ends.
With reference to Figure 16; Usually can finish line of cut 160 and dead line 162 on the workpiece; Make cutting blade 34 along line of cut 160 cutting, when being used to indicate index line 155 on cutting blade 34 indicator collet 138 foremost to aim at dead lines 162, stop cutting; Can not make cutting excessive like this, guarantee the accuracy of workpiece processing.
Certainly; The duty (not shown) that other also can be arranged; For example, when need be when place, the middle part of workpiece cut out an opening, the length of the opening of can be earlier cutting according to need; The length of the cutting blade that definite needs expose, normal conditions are the length that the length of the feasible cutting blade that exposes is less than or equal to the opening that needs cutting.After the length of the cutting blade of confirming to expose, press guard shield, cutting blade is exposed from the cutting blade through hole; The length of the cutting blade that exposes is identical with the length of confirming, stir indicator collet this moment, makes the index line on the indicator collet aim at the line of weakness corresponding foremost with cutting blade; Same,, stir another indicator collet; Make the index line on the indicator collet aim at the line of weakness corresponding with the cutting blade rearmost end, accordingly regulate the degree of depth according to the cutting blade length of exposing this moment.During cutting, make index line on the indicator collet of rear end aim at need the starting end of the opening of cutting, cut, finish cutting during end that the index line on the front end indicator collet is aimed at the opening that needs cutting.
With reference to Figure 17, be the cutting blade indicating device that second embodiment of the invention disclosed, wherein identical with first embodiment characteristic just no longer repeats; Here mainly will describe with first other characteristic of embodiment phase region, in this second embodiment, the cutting blade indicating device comprises indicator collet 138a; This indicator collet 138a roughly is " U " shape; The one side of being somebody's turn to do " U " shape indicator collet 138a is main part 140a, and another side is the 142a of indication portion, and the base of " U " shape indicator collet 138a is connecting portion 143a; Connecting portion 143a movably is positioned at guard shield sidewall 52a, between 52b and the guard shield diapire 50.Connecting portion 143a and guard shield diapire 50 almost parallels.Be provided with certain clearance 144a between main part 140a and the 142a of indication portion, guard shield sidewall 52a, 52b are accommodated in the 144a of this gap; The size of this gap 144a makes that working as indicator collet 138a is installed on guard shield sidewall 52a; After 52b was last, indicator collet 138a can be along guard shield sidewall 52a, and 52b moves.Main part 140a is located at guard shield sidewall 52a, the inboard of 52b, and the 142a of indication portion is located at guard shield sidewall 52a, the outside of 52b.The 142a of indication portion is provided with boss 158, guard shield sidewall 52a, and the last guide groove 160 that is respectively equipped with of 52b, extend with the direction of guard shield diapire 50 almost parallels on guide groove 160 edges.Towards guard shield sidewall 52a, stretch out by the direction of 52b from the inboard of the 142a of indication portion for boss 158.Boss 158 is contained in the guide groove 160, and cooperating between boss 158 and the guide groove 160 is matched in clearance, and this fit system makes boss 158 to move along the bearing of trend of guide groove 160.In Figure 17, the state diagram the when 142a of indication portion that dotted line is depicted as indicator collet 138a does not install, the 142a of indication portion of this moment certain angle that slopes inwardly acutangulates setting between i.e. indication 142a of portion and the guard shield diapire 50.During installation; Need the 142a of indication portion is pulled outwardly certain angle; Make boss 158 be contained in the guide groove 160, and after boss 158 is contained in guide groove 160, boss 158 can impose on the certain pressure of guide groove 160; Thereby guarantee the reliability of assembling, and make indicator collet 138a can not fall down easily.The material of indicator collet 138a is generally has certain flexible plastic material, for example nylon.
Claims (13)
1. portable cutter comprises:
The cutting blade that is used for the circle of processing work;
The working head housing is used for the said cutting blade of accommodating of part;
Guard shield is installed on the said working head housing, and can between the primary importance and the second place, move with respect to the working head housing, and said guard shield is provided with the cutting blade through hole and is used to make that cutting blade therefrom passes; When guard shield was positioned at primary importance, cutting blade did not pass from the cutting blade through hole, and when guard shield was positioned at the second place, cutting blade passed from the cutting blade through hole;
The cutting blade indicating device be used for when guard shield is in the second place cutting blade that indication exposes from the cutting blade through hole foremost with rearmost end at least one;
Depth adjustment is used to regulate the depth of cut of said portable cutter;
It is characterized in that:
Said cutting blade indicating device movably is installed on the guard shield; When said depth adjustment has been set up depth of cut and guard shield and has been positioned at the second place, this cutting blade indicating device is exercisable move to the cutting blade that from the cutting blade through hole, exposes foremost with rearmost end at least one corresponding position.
2. portable cutter according to claim 1; It is characterized in that: said cutting blade indicating device comprises at least two indicator collets, these at least two indicator collets be used for when guard shield is positioned at the second place, indicating respectively the cutting blade that exposes from the cutting blade through hole foremost and rearmost end.
3. portable cutter according to claim 1; It is characterized in that: said guard shield comprises the guard shield sidewall; Said cutting blade has the cutting blade plane; Said guard shield sidewall comprises two, and these two guard shield sidewalls are distributed in the both sides on cutting blade plane, and said cutting blade indicating device is installed on these two guard shield sidewalls.
4. portable cutter according to claim 1; It is characterized in that: said guard shield comprises guard shield sidewall and guard shield diapire; The guard shield sidewall comprises two; These two guard shield sidewalls are distributed in the both sides on cutting blade plane, and said cutting blade through hole is located on the guard shield diapire, and said cutting blade indicating device movably is installed between guard shield sidewall and the guard shield diapire.
5. portable cutter according to claim 4; It is characterized in that: said cutting blade indicating device comprises can be along the indicator collet of shroud move, and this indicator collet comprises main part and indication portion, is provided with the gap between said main part and the indication portion; The guard shield sidewall is contained in this gap; The guard shield sidewall has the outside and inboard, and indication portion is positioned at the outside of guard shield sidewall, and body section is in the inboard of guard shield sidewall.
6. portable cutter according to claim 5; It is characterized in that: the end place near the guard shield diapire on said two guard shield sidewalls is provided with first guide groove and second guide groove respectively, and said cutting blade indicating device comprises that several indicator collets are installed on respectively on first guide groove and second guide groove.
7. portable cutter according to claim 5; It is characterized in that: establish accepting hole on the said main part; Be provided with spring and bullet in the said accepting hole, an end of spring is against main part, and the other end of spring is against bullet; One end of bullet is compressed by spring, and the other end of bullet is a tapering point.
8. portable cutter according to claim 7; It is characterized in that: said guard shield diapire comprises medial surface and lateral surface; The medial surface of guard shield diapire is provided with the pit row of being made up of some pits, and the tapering point of said bullet arbitrary pit exercisable and during this pit is listed as cooperates.
9. portable cutter according to claim 5 is characterized in that: said indication portion is provided with index line, and this index line is vertical with the guard shield diapire.
10. portable cutter according to claim 9; It is characterized in that: said guard shield diapire comprises medial surface and lateral surface; The lateral surface of guard shield diapire is provided with some mark lines; These some mark lines are parallel to each other and are vertical with the cutting blade plane, and the exercisable and said mark line of said index line is aimed at.
11. portable cutter according to claim 5 is characterized in that: said indication portion is provided with boss, and said guard shield sidewall is provided with guide groove, and said boss is contained in the said guide groove, and can move along said guide groove.
12. portable cutter according to claim 11; It is characterized in that: link to each other through connecting portion between said main part and the said indication portion; When indicator collet was installed on the guard shield, said connecting portion was between guard shield sidewall and guard shield diapire, and connecting portion and guard shield diapire laterally arrange; When indicator collet is not installed on the guard shield, acutangulate setting between indication portion and the guard shield diapire.
13. portable cutter according to claim 12 is characterized in that: said indicator collet is processed by elastomeric material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101378083A CN101863047B (en) | 2009-04-20 | 2009-04-20 | Portable cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101378083A CN101863047B (en) | 2009-04-20 | 2009-04-20 | Portable cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101863047A CN101863047A (en) | 2010-10-20 |
| CN101863047B true CN101863047B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101378083A Active CN101863047B (en) | 2009-04-20 | 2009-04-20 | Portable cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101863047B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103203777B (en) * | 2012-01-12 | 2015-11-25 | 苏州宝时得电动工具有限公司 | Portable circular saw |
| CN105458398A (en) * | 2014-09-09 | 2016-04-06 | 苏州宝时得电动工具有限公司 | Portable circular saw |
Citations (4)
| 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 |
| CN1745947A (en) * | 2005-09-30 | 2006-03-15 | 苏州宝时得电动工具有限公司 | Electric annular saw |
| CN101380744A (en) * | 2007-09-07 | 2009-03-11 | 日立工机株式会社 | Portable cutting machine |
| CN201405384Y (en) * | 2009-04-20 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Portable cutter |
-
2009
- 2009-04-20 CN CN2009101378083A patent/CN101863047B/en active Active
Patent Citations (4)
| 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 |
| CN1745947A (en) * | 2005-09-30 | 2006-03-15 | 苏州宝时得电动工具有限公司 | Electric annular saw |
| CN101380744A (en) * | 2007-09-07 | 2009-03-11 | 日立工机株式会社 | Portable cutting machine |
| CN201405384Y (en) * | 2009-04-20 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Portable cutter |
Non-Patent Citations (2)
| Title |
|---|
| JP特开2005-59327A 2005.03.10 |
| JP特开平7-204930A 1995.08.08 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101863047A (en) | 2010-10-20 |
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Denomination of invention: Portable cutter Effective date of registration: 20140515 Granted publication date: 20120704 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou Registration number: 2014990000362 |
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Date of cancellation: 20180416 Granted publication date: 20120704 Pledgee: Bank of Communications Ltd Suzhou branch Pledgor: Baoshide Electric Tools Co., Ltd., Suzhou Registration number: 2014990000362 |
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