CN105345143A - Portable cutting machine - Google Patents
Portable cutting machine Download PDFInfo
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- CN105345143A CN105345143A CN201510599218.8A CN201510599218A CN105345143A CN 105345143 A CN105345143 A CN 105345143A CN 201510599218 A CN201510599218 A CN 201510599218A CN 105345143 A CN105345143 A CN 105345143A
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- guard shield
- saw blade
- locating part
- housing
- guide rail
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Abstract
The invention provides a portable cutting machine. The portable cutting machine comprises a saw web for cutting workpieces, a shell and a shield movably mounted on the shell. The shield is provided with a saw web through hole allowing the saw web to pass through. The shield can move between the first position and the second position relative to the shell; when the shield is located in the first position, the saw web does not penetrate through the saw web through hole, and when the shield is located in the second position, the saw web penetrates through the saw web through hole. One of the shield and the shell is provided with a guide rail. The guide rail is provided with a first guide rail side wall and a second guide rail side wall which are arranged at an equal interval. The other of the shield or the shell is provided with two limiting pieces in linear contact with the first guide rail side wall, and a limiting piece in linear contact with the second guide rail side wall. Accordingly, the shield can slide stably relative to the shell.
Description
The application is applicant is " portable cutter " in the denomination of invention that on September 21st, 2010 applies for, application number is the divisional application of the Chinese invention patent application of 201010297610.4.
Technical field
The present invention relates to a kind of power tool, especially relate to a kind of portable cutter.
Background technology
Traditional portable cutter, such as portable electric annular saw generally includes a saw blade being used for processing work, be used for driving the motor of this saw blade, the output shaft of motor is usually all perpendicular to saw blade, main handle is used for holding for operator in operation, main handle is vertical with motor to be arranged, this electric circular saw comprises a base plate, determine guard shield and a dynamic guard shield for one, determine the top that guard shield is positioned at base plate, at any time saw blade top is closed at wherein, dynamic guard shield is positioned at below base plate, during work, the dynamic rotatable saw blade bottom that makes of guard shield is exposed, the shortcoming of this traditional electrical annular saw be volume ratio more greatly and more clumsy, process some smaller, just not too applicable during thinner workpiece.
Production firm improves technology, be proposed a kind of small volume successively, light and handy portable electric annular saw, this electric circular saw comprises a less saw blade, for driving the motor of saw blade, casing, casing front portion is used for accommodating transmission mechanism etc., cabinet rear is used for accommodating motor etc., this little portable electric annular saw does not arrange independent handle, namely the rear portion of casing can be used as handle and uses, this electric circular saw does not have independent to determine guard shield, saw blade top is contained in wherein by casing front portion, what this casing front portion was just equivalent to traditional electrical annular saw determines guard shield, an independent dynamic guard shield is movably installed on casing front portion, this dynamic guard shield comprises bottom guard shield and four sidewalls upwards extended from bottom, be provided with opening bottom guard shield to be provided for saw blade and therefrom to stretch out, dynamic shroud ring is arranged around housing front portion, and it is anterior relative to casing removable thus make the saw blade depth exposed different.But the guiding mechanism of the dynamic guard shield of this portable electric annular saw is often arranged on the inside sidewalls of guard shield, cause the guiding mechanism of guard shield all surround by the sidewall of guard shield, the structure of adding himself is all comparatively complicated, is not easy very much to install.
Summary of the invention
Technical problem to be solved by this invention is to provide the portable cutter that a kind of guard shield is easily installed.
In order to solve the problem, the invention provides a kind of portable cutter, comprising: for the saw blade of cut workpiece; Housing; Movably be installed on the guard shield on described housing, this guard shield is provided with saw blade through hole and is provided for saw blade and extends there through, this guard shield movably moves between the first position and the second position relative to described housing, when guard shield is positioned at primary importance, described saw blade does not pass from saw blade through hole, when guard shield is positioned at the second place, described saw blade passes from described saw blade through hole; One in described guard shield and described housing is provided with exposed guide rail, and another in described guard shield and described housing is provided with at least two locating parts coordinated with described guide rail.
In disclosed portable cutter, by guide rail being exposed to outside, thus make guard shield be very easy to be mounted on the housing of portable cutter, in like manner also can very convenient guard shield be disassembled from housing, moreover user clearly can observe the mated condition of locating part and guide rail, even if coordinating between locating part with guide rail breaks down, also can be very easy to find out failure cause, thus bring facility to user.
Preferred implementation of the present invention is also following several:
Preferably, described guide rail is located on described guard shield, and described locating part is located on described housing.
Preferably, described guide rail comprises the first guiding cheekn and the second guiding cheekn, and described at least two locating parts are between described the first side wall and described second sidewall.
Preferably, described first guiding cheekn and the facing surface of the second guiding cheekn are provided with fin, and described fin is sandwiched between described locating part and described housing.
Preferably, described housing is provided with depth adjustment, described second sidewall is provided with back to the side of described the first side wall the spacing preiection coordinated with described depth adjustment.
Preferably, the quantity of described guide rail is two, all arranges three described locating parts be mated corresponding to each described guide rail.
Preferably, described guard shield also has the saw blade host cavity with the mating shapes of described saw blade through hole, and described saw blade host cavity can be partially housed in described housing.
Preferably, described guide rail is arc-shaped guide rail, and the center of circle of arc is positioned at outside described portable cutter.
Preferably, described portable cutter also comprises motor, and described housing comprises the anterior housing rear portion with accommodating described motor of housing, and the described center of circle is positioned at the side of described portable cutter away from described housing rear portion.
The present invention also provides a kind of portable cutter, comprising: for the saw blade of cut workpiece; Housing; Movably be installed on the guard shield on described housing; One in described guard shield and described housing is provided with exposed guide rail, and another in described guard shield and described housing is provided with at least two locating parts coordinated with described guide rail.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, further detailed description is done to the present invention.
The stereogram of the portable cutter that Fig. 1 discloses for first embodiment of the invention;
Fig. 2 is plane when portable cutter that Fig. 1 discloses does not install guard shield;
Fig. 3 is cut-away view when portable cutter that Fig. 1 discloses does not install guard shield;
The stereogram of the guard shield of the portable cutter that Fig. 4 discloses for Fig. 1;
Fig. 5 is the guard shield stereogram from another perspective in Fig. 4;
The stereogram of portable cutter when saw blade exposes guard shield that Fig. 6 discloses for Fig. 1;
The three-dimensional exploded view of the portable cutter that Fig. 7 discloses for Fig. 1;
Fig. 8 for when portable cutter that Fig. 1 discloses does not install guard shield from the stereogram viewed from opposite side;
The partial enlarged drawing of portable cutter at A place that Fig. 9 discloses for Fig. 8;
The stereogram of the portable cutter that Figure 10 discloses for Fig. 1 when the position that spanner is in out;
The stereogram of the depth adjustment of the portable cutter that Figure 11 discloses for Figure 10;
Figure 12 for portable cutter that Fig. 1 discloses guard shield is installed and gear-box is opened time cut-away view;
The exploded view of portable cutter when base plate is not installed on guard shield that Figure 13 discloses for Fig. 1;
The partial exploded view of the portable cutter that Figure 14 discloses for Fig. 1;
The schematic internal view of portable cutter when guard shield is installed that Figure 15 discloses for Fig. 1;
The partial schematic diagram of the portable cutter that Figure 16 discloses for second embodiment of the invention;
The partial schematic diagram of the portable cutter that Figure 17 discloses for third embodiment of the invention;
The front view of the portable cutter that Figure 18 discloses for fourth embodiment of the invention;
The stereogram of the guard shield of portable cutter of Figure 19 for disclosing in Figure 18;
Figure 20 is the partial perspective view when portable cutter disclosed in Figure 18 does not install guard shield;
The top view of portable cutter of Figure 21 for disclosing in Figure 18;
Figure 22 is the phantom of the portable cutter that discloses in Figure 21 linearly H-H;
The fragmentary rear elevation view of portable cutter of Figure 23 for disclosing in Figure 18.
Wherein:
40. portable cutter 50. first end 56. saw blades
42. housing 52. second end 57. air inlets
Anterior 53. tool drives axle 58. motors of 44. housings
46. housing rear portion 54. power line 59. electric motor fans
48. handle grip portion 55. air outlet 60. switches
62. transmission mechanism 106. rebounding mechanism 157. rail end
Bottom 64. guard shield 108. helical spring 158. guard shields
110. pin 159. through holes bottom 66. guard shields
68. base plate 112. pilot hole 160. arc-shaped guide rails
70a-d. guard shield sidewall 114. diameter comparatively small end 161. saw blade host cavity
The larger end 162a. of 72. saw blade through hole 116. diameter caves in
74. chip-removal hole 118. indicator collet 162b. cave in
Bottom 76. cavity 120. first arcuate flanks 163. guide rails
78. top edge 122. second arcuate flanks 164. first guiding cheekns
80a-d. arc groove 124. bearing 165. first arcuate flanks
82a-d. housing sidewall 126. projection 166. second guiding cheekn
84. cylinder 128. bearing inner race 167. second arcuate flanks
86. pin 130. bearing outer ring 168. spacing preiections
88. groove 132. groove floor 169. fins
88a. square groove 134. arc opening 170. guard shield sidewall
88b. cylindrical recesses 136. first arcuate flanks 172a. bearing
90. depth adjustment 138. second arcuate flanks 172b. bearings
92. arc opening 140. bearing 172c. bearings
94. arc collecting plate 142. arc convex 174a. screws
96. slide block 144. first arcuate flanks 174b. screws
98. cam spanner 146. second arcuate flanks 174c. screws
100. cam part 148. bearing 176. bearing inner races
102. spanner portion 150. portable cutter 178. laser alignment device
104. pointer 154. guard shield 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 central section at housing anterior 44 and housing rear portion 46.Housing central section is handle grip portion 48 in one embodiment of the invention.Housing 42 can be moulding, and can be made up of two and half shells.Housing rear portion 46 comprises first end 50 and the second end 52, and first end 50 adjoins with handle grip portion 48, and the second end 52 is away from handle grip portion 48 and be usually connected with power line 54.
With reference to Fig. 2, handle grip portion 48 roughly extends straight together with housing rear portion 46, handle grip portion 48 is X with the longitudinal extending axis at housing rear portion 46, housing front portion 44 bends from handle grip portion 48 and extends, the longitudinal extending axis of housing front portion 44 is Y, the angle a of the longitudinal extending axis Y of housing front portion 44 and the longitudinal extending axis X at 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 comprise for processing work saw blade 56 and be used for driving the motor of this saw blade 56, motor is motor 58 in the present embodiment.Saw blade 56 has saw blade plane.In other embodiments of the invention, motor also can be air motor, hydraulic motor etc.Being contained in housing front portion 44 of saw blade 56 part.Motor 58 is contained in housing rear portion 46, and motor 58 and power line 54 are electrically connected thus can be connected in AC power (not shown), and certain motor 58 also can be powered by dc-battery.Portable cutter 40 also comprises switch 60, and switch 60 and motor 58 are electrically connected the unlatching and stopping that being used for controlling motor 58.
See also Fig. 2 and Fig. 3, motor 58 is provided with electric motor fan 59, and electric motor fan 59 is contained in one end away from handle grip portion 48, housing rear portion 46, its region at housing rear portion 46 around electric motor fan 59 is provided with air outlet 55, and the position be connected with handle grip portion 48 at housing rear portion 46 is provided with air inlet 57.The position of electric motor fan 59 is so set, air outlet can be made relatively away from hand or the head of user, thus make hand or the head that can not blow to user from the wind of air outlet blowout, improve the comfort level of use.
Transmission mechanism 62 is provided with for driving saw blade 56 to move to saw blade 56 by tool drives axle 53 power transmission of motor 58 between motor 58 and saw blade 56.Transmission mechanism 62 is contained in housing anterior 44 and handle grip portion 48 respectively.
With reference to Fig. 1, Fig. 4 and Fig. 5, portable cutter 40 comprises guard shield 64, guard shield 64 around surround housing front portion 44, guard shield 64 to comprise bottom guard shield 66, in the present embodiment, bottom guard shield, the outside of 66 is also provided with base plate 68 (with reference to Figure 13), and base plate 68 is fixedly connected with the mode by buckle between 66 bottom guard shield.In the course of work, base plate 68 contacts with surface of the work.In other embodiments of the invention, bottom guard shield, the outside of 66 also can not mounting base 68, but by 66 directly contacting with surface of the work bottom guard shield.
Guard shield 64 also comprises four guard shield sidewall 70a-d and surrounds one week and substantially vertical 66 upwards to extend bottom guard shield, and bottom guard shield, 66 are provided with saw blade through hole 72, and saw blade through hole 72 is provided for saw blade 56 and extends there through.Bottom guard shield 66 be provided with some chip-removal holes 74 be provided for dust bits therefrom discharge.Bottom four guard shield sidewall 70a-d and guard shield, 66 form cavitys 76, and cavity 76 is used for the bottom of case anterior 44 and saw blade 56.Guard shield sidewall 70a comprises a top edge 78, the top edge 78 of sidewall 70a be away from bottom guard shield 66 a limit.The concrete effect of top edge 78 can be described in detail later.
With reference to Fig. 1 and Fig. 6, be connected (about arc-shaped guide rail and mating part with mating part by arc-shaped guide rail between guard shield 64 and housing front portion 44, can describe in detail below), coordinated with arc-shaped guide rail by mating part, thus restriction guard shield edge and the displacement on the direction of saw blade plane orthogonal.Guide rail is located in guard shield and housing front portion, and mating part is located on another in guard shield and housing front portion.Mating part coordinates with arc-shaped guide rail and can arcuately move by guide rail.When arcuately guide rail moves in mating part, guard shield 64 relatively housing anterior 44 is moveable from primary importance to the second place, when guard shield 64 is positioned at primary importance, saw blade 56 does not pass from saw blade through hole 72 (with reference to Fig. 1), and saw blade 56 can not be exposed from guard shield 64; When guard shield 64 is positioned at the second place, at least part of the passing (with reference to Fig. 6) from saw blade through hole 72 of saw blade 56, now, saw blade 56 can part expose from guard shield 64, thus portable cutter 40 can be used to processing work.
With further reference to Fig. 4 and Fig. 5, guard shield sidewall 70a and 70b just to setting, guard shield sidewall 70c and 70d just to setting, and when guard shield 64 is installed on housing front portion 44, guard shield sidewall 70a and 70b and saw blade 56 almost parallel, and be positioned at the both sides of saw blade 56.In the present embodiment, the arc groove 80c that arc-shaped guide rail is the arc groove 80a be located on the inner surface of guard shield sidewall 70a, 80b and is located on the inner surface of guard shield sidewall 70b, 80d.Arc groove 80a-d 66 to extend roughly obliquely bottom guard shield.Arc groove 80a-d is arranged along the circumferential direction interval of guard shield sidewall 70a and 70b inner surface.The center of circle corresponding with the circular arc at arc groove 80b place, the center of circle that the circular arc at arc groove 80a place is corresponding is roughly the same center of circle.The center of circle corresponding with the circular arc at arc groove 80d place, the center of circle that the circular arc at arc groove 80c place is corresponding is roughly the same center of circle.
With reference to Fig. 7, Fig. 8 and Fig. 9, housing front portion 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, mating part be located at housing sidewall 82a and 82b outer surface on and coordinate with arc groove 80a-d.Mating part is generally protruding, and projection is contained in arc groove 80a-d and also can within it moves.
In the present embodiment, mating part comprises cylinder 84, the center of cylinder 84 is provided with through hole, pin 86 is through through hole, the two ends of pin 86 are exposed to through hole, coordinating between pin 86 and the through hole of cylinder 84 is matched in clearance, thus cylinder 84 can be rotated around pin 86, sidewall 82a and 82b is provided with the groove 88 for accommodating mating part, the mid portion of groove 88 is square groove 88a, be used for part collecting cylinder 84, the two ends of groove 88 are provided with the cylindrical recesses 88b with the two ends mating shapes of the pin 86 exposing through hole.Cylinder 84 part be contained in semi-cylindrical recesses 88a, the two ends of pin 86 are contained in cylindrical recesses 88b, have certain gap between cylinder 84 and square groove 88a, and this docked mode makes cylinder 84 can rotate in square groove 88a.In the present embodiment, be interference fit between the two ends of pin 86 and cylindrical recesses 88b, thus make whole mating part can not be easy to fall down from housing front portion 44.
Certain pin 86 with can be fixedly connected with between cylinder 84, and can be also matched in clearance between the two ends of pin 86 and cylindrical recesses 88b, pin 86 is rotated together with cylinder 84.
Cylinder 84 and pin 86 are generally metal material and make, such as steel etc., wearing and tearing can be made so less, and intensity are larger.
Housing sidewall 82a-d comprises wall outer surface, and when guard shield 64 is installed on housing front portion 44, the inner surface of guard shield sidewall 70a-d of guard shield 64 is adjacent with the outer surface of the housing sidewall 82a-d of housing front portion 44.Mating part is located on housing sidewall 82a-b outer surface, the mating part be located on housing sidewall 82a outer surface has four, these four mating portions are two groups, often group comprises two, two mating parts often in group are respectively along the direction arrangement that the bearing of trend of the arc groove 80a-b corresponding with it roughly parallels, arrange along the anterior 44 circumferential direction intervals of housing between two groups of mating parts, mating part is corresponding with the arc groove 80a-b being located at guard shield 64 inner surface arranges for each group.Identical with housing sidewall 82a, housing sidewall 82b is also provided with two groups of mating portions are not corresponding with arc groove 80c-d to be arranged.
With reference to Figure 10 and Figure 11, portable cutter 40 comprises depth adjustment 90 and is used for regulating depth of cut.Housing sidewall 82a is provided with arc opening 92.The bearing of trend of arc opening 92 is roughly the same with radian with the bearing of trend of arc groove 80a-d with radian.One arc collecting plate 94 is contained in this arc opening 92.Depth adjustment 90 is movably contained in arc collecting plate 94.Depth adjustment 90 comprises slide block 96, and slide block 96 is movably installed in arc collecting plate 94.
Being connected on slide block 96 of cam spanner 98 pivotable.Cam spanner 98 comprises cam part 100 and spanner portion 102.By operation spanner portion 102, cam part 100 is pivotable to be clamped relative for depth adjustment 90 housing sidewall 82a or unclamps.What slide block 96 was fixed is connected with a pointer 104, and pointer 104 is used to refer to the degree of depth of setting.Arc opening 92 side indicates scale value (not shown), and this scale value represents saw blade depth.Pointer 104 points in the scale value of arc opening 92 side, thus shows the good saw blade depth of current setting.
In work, when needing regulation depth, first lift spanner portion 102, make the position that cam spanner 98 is in out, arcuately opening 92 sliding slider 96, make pointer 104 point to the scale value needed.After having set up the degree of depth, pressure spanner portion 102, make cam spanner 98 be in the position of conjunction, now slide block 96 has been locked in a certain position of arc opening 92.During cut workpiece, the pressure of base plate 68 part on the surface of the workpiece, operator holds handle grip portion 48, and be applied to 48 1, handle grip portion pressure, now housing 42 shield vis 64 arcuately moves, until the top edge 78 of guard shield 64 contacts with the cam part 100 of cam spanner 98, the saw blade 56 exposing the certain depth of guard shield 64 just can be processed.
With reference to Figure 12, portable cutter 40 comprises rebounding mechanism 106, and this rebounding mechanism 106 is provided for the relative housing 42 of guard shield 64 and moves to primary importance from the second place.In the present embodiment, rebounding mechanism 106 comprises helical spring 108 and pin 110.Portable cutter 40 comprises gear drive (sign) further, this gear drive is contained in gear box casing (sign), 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, pin 110 comprises a diameter comparatively small end 114 and a larger end 116 of diameter, diameter comparatively small end 114 is arranged with helical spring 108, the larger end 116 of diameter is bottom guard shield 66, helical spring 108 bottom guard shield 66 direction compress power to 110 1, pin.
With reference to Figure 13, be provided with between guard shield 64 and base plate 68 and cut wide indicating device.This is cut wide indicating device and comprises some indicator collets 118.Indicator collet 118 is movably installed on guard shield sidewall 70a-b, is used for after saw blade 56 is exposed to guard shield 64, instruction saw blade 56 foremost and rearmost end.
With reference to Figure 14 and Figure 15, further combined with Fig. 4 and Fig. 5, portable cutter 40 comprises locating part further.Above-mentioned arc-shaped guide rail is arranged on guard shield 64 and both housing 42 one, and locating part is arranged on another of both guard shield 64 and housing 42, and this locating part coordinates with arc-shaped guide rail, thus the displacement of restriction guard shield 64 arcuately guide rail normal direction.
In one embodiment of the invention, the arc-shaped guide rail coordinated with locating part refers to above-mentioned arc groove 80a and 80d, the locating part mainly first introduced arc groove 80a and be mated here.
Arc groove 80a comprises the first arcuate flanks 120 and the second arcuate flanks 122, first arcuate flanks 120 and the second arcuate flanks 122 and arranges with one heart, is located at respectively on madial wall corresponding to two of arc groove 80a.
Locating part comprises first group of locating part and second group of locating part.First group of locating part is selectable linearly to be contacted with in the first arcuate flanks or the second arcuate flanks, and second group of locating part is selectable linearly to be contacted with in the first arcuate flanks or the second arcuate flanks.
First group of locating part is identical with second group of locating part is a bearing 124.Outward extending on housing sidewall 82a a projection 126 is installed.Bearing 124 is installed on projection 126.Bearing 124 comprises bearing inner race 128 and bearing outer ring 130.Bearing inner race 128 is rotatable relatively for bearing outer ring 130.It is interference fit between bearing inner race 128 and projection 126.Two bearings 124 and two cylinders 84 are all contained in arc groove 80a.Two cylinders 84, between two bearings 124, also can be positioned at the outside of two bearings 124.
Arc groove 80a comprises groove floor 132.Above-mentioned cylinder 84 coordinates with groove floor 132, and can roll along groove floor 132, cylinder 84 contacts with the linearly of groove floor 132.
During operation, operator presses handle grip portion 48, guard shield 64 is made to move to the second place relative to housing 42 from primary importance, bearing 124 as first group of locating part is exercisable linearly to be contacted with in both the first arcuate flanks 120 or the second arcuate flanks 122, keeps certain gap with another in both; Meanwhile, the bearing 124 as second group of locating part is exercisable linearly to be contacted with that does not contact with the bearing 124 of first group of locating part in both the first arcuate flanks 120 or the second arcuate flanks 122, and keeps certain gap with another in both.
With reference to Figure 15, be certain flashy state diagram that the relative housing 42 of guard shield 64 moves, the bearing 124 now as first group of locating part linearly contacts with the first arcuate flanks 120, keeps certain gap with the second arcuate flanks 122; Simultaneously keep certain gap as the bearing 124 of second group of locating part and the first arcuate flanks 120, linearly contact with the second arcuate flanks 122.
After guard shield is relative to housing motion to the second place, operator holds handle grip portion 48, forward or backward mobile portable cutting machine, linearly contacts with in the first arcuate flanks or the second arcuate flanks with the while of exercisable as the bearing of second group of locating part as first group of locating part.
As hereinbefore, also contain the locating part identical with second group of locating part with first group of locating part in arc groove 80d, the object arranging locating part in arc groove 80d makes limit effect better.
The quantity of certain locating part is not limited to the above.
Embodiment two
With reference to Figure 16, the present embodiment is substantially identical with embodiment one, difference is the arc-shaped guide rail coordinated 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.The first arcuate flanks 136 and the second arcuate flanks 138 is provided with in two respective side of arc opening 134, first group of locating part and second group of locating part are respectively two bearings 140, two bearings 140 as first group of locating part are positioned at the both sides of arc opening 134, and exercisablely linearly contact with the first arcuate flanks 136 or the second arcuate flanks 138.
Figure 16 is certain flashy state diagram that the relative housing 42 of guard shield 64 moves, now, a bearing 140 as first group of locating part linearly contacts with the first arcuate flanks 136, keeps certain interval as another bearing 140 of first group of locating part and the second arcuate flanks 138; Meanwhile, keep certain interval as the bearing 140 of second group of locating part and the first arcuate flanks 136, another bearing 140 as second group of locating part linearly contacts with the second arcuate flanks 138.
Embodiment three
With reference to Figure 17, the present embodiment substantially identical with embodiment one (not shown), difference is the arc-shaped guide rail coordinated 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.The first arcuate flanks 144 and the second arcuate flanks 146 is provided with at two of arc convex 142 corresponding lateral surfaces, 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 exercisablely linearly contact with the first arcuate flanks 144 or the second arcuate flanks 146.
Figure 17 is certain flashy state diagram that the relative housing 42 of guard shield 64 moves, now, a bearing 148 as first group of locating part linearly contacts with the first arcuate flanks 144, keeps certain interval as another bearing 148 of first group of locating part and the second arcuate flanks 146; Meanwhile, keep certain interval as the bearing 148 of second group of locating part and the first arcuate flanks 144, another bearing 148 as second group of locating part linearly contacts with the second arcuate flanks 146.
Embodiment four
Refer to Figure 18, its portable cutter 150 provided for fourth embodiment of the invention, it saw blade 56 comprising guard shield 154, housing 42 and be contained in guard shield 154, its middle shell 42 comprises the housing rear portion 46 of housing front portion 156, collecting motor, the handle grip portion 48 between housing anterior 156 and housing rear portion 46.The functional structure of the portable cutter 40 that portable cutter 150 and previous embodiment provide is substantially identical, is only described for difference as space is limited at this.
See also Figure 18 and Figure 19.Guard shield 154 comprise for bottom the guard shield of workpiece 158, for coordinate with the locating part of portable cutter 150 arc-shaped guide rail 160, for accommodating the saw blade host cavity 161 of saw blade 56.
Saw blade 56 has cut direction F, when portable cutter 150 cut workpiece, by 158 being resisted against surface of the work bottom guard shield, and promoting portable cutter 150 along direction F and realizes cutting operation.
Bottom guard shield, 158 have lengthwise bearing of trend, and it has for the abutment face against workpiece, and this abutment face is roughly rectangle setting.Bottom guard shield, offer saw blade through hole 72 on 158, and the bearing of trend of saw blade through hole 72 is identical with described lengthwise bearing of trend.
Saw blade host cavity 161 to be installed on bottom guard shield 158 back on the surface of described 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 changes between the first position and the second position, saw blade host cavity 161 is all partially housed in housing front portion 156, thus make the small volume of portable cutter 150, the space in Appropriate application housing front portion 156.Saw blade host cavity 161 forms the cross section cavity identical and corresponding with saw blade through hole 72 shape, and saw blade 56 can be contained in described cavity.The centre position of the pair of sidewalls that saw blade host cavity 161 and saw blade through hole 72 extend in the same way is respectively arranged with the 162a and the 162b that caves in that caves in, when 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, thus makes saw blade host cavity 161 can not change formation obstacle between the first position and the second position to guard shield 154.
Saw blade host cavity 161 with close on saw blade through hole 72 position and be provided with the through hole 159 running through saw blade host cavity 161, when guard shield 154 is mounted to portable cutter 150, tool drives axle 53 is positioned in the projection of described abutment face the centre position that through hole 159 and arc-shaped guide rail 160 project at described abutment face.When user's cut workpiece, clearly can be observed the position of saw blade 56 by through hole 159, thus effectively can improve cutting accuracy.Moreover, saw blade host cavity 161 can be partially housed in housing front portion 156, the close together of its distance saw blade 56, the chip that saw blade 56 produces in cutting process can be discharged very smoothly from through hole 159, thus makes the dust discharge of integrated model very smooth and easy.
The quantity of arc-shaped guide rail 160 is two, extends respectively along its longitudinally, and to be installed on bottom guard shield 158 back on the surface of described abutment face, and lays respectively at the side of saw blade host cavity 161.Relatively and be arranged in parallel, the other end of two arc-shaped guide rails 160 all towards described surface along described longitudinally bends according to certain radian simultaneously for two arc-shaped guide rails 160.After guard shield 154 is mounted to portable cutter 150, the center of circle of arc-shaped guide rail 160 to be positioned at outside guard shield 154 and portable cutter 150 and away from the side at housing rear portion 46, and the side that described in arc-shaped guide rail 160, tool drives axle is contrary with described cut direction F, namely between the motor in tool drives axle 53 and housing rear portion 46, thus make tool drives axle 160 that any guiding mechanism is not set towards the side of cut direction, thus possess good visual angle and observe saw blade position by through hole 159.
After guard shield 154 is mounted to portable cutter 150, arc-shaped guide rail 160 can be exposed in the sight line of user, namely its can not by housing 42 or guard shield 154 block.So arrange and guard shield 154 can be made to 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 user clearly can observe the mated condition of locating part and arc-shaped guide rail 160, even if coordinating between locating part with arc-shaped guide rail 160 breaks down, also can be very easy to find out failure cause, thus bring facility to user.
The structure of two arc-shaped guide rails 160 is identical, its comprise respectively away from bottom guard shield 158 rail end 157 with bottom 158 guide rails be connected bottom guard shield 163, bottom rail end 157 and guide rail between 163 and the first guiding cheekn 164 and the second guiding cheekn 166 equidistantly extended.Bottom rail end 157 and guide rail, 163 for limiting the scope of activities of locating part, prevents locating part from departing from from arc-shaped guide rail 160.
First guiding cheekn 164 and the second guiding cheekn 166 possess identical radian on the two lengthwise bearing of trend, thus make the track formed by the first guiding cheekn 164 and the second guiding cheekn 166 possess certain radian.First guiding cheekn 164 is the facing surface of the first arcuate flanks 165, second guiding cheekn 166 and the first arcuate flanks 165 towards the surface of the second guiding cheekn 166 is the second arcuate flanks 167.When guard shield 154 is assembled on portable cutter 150, two arc-shaped guide rails 160 can coordinate with the locating part of portable cutter 150, limit the scope of guard shield 154 relative to housing front portion 156 movement.
First arcuate flanks 165 and the second arcuate flanks 167 all arrange fin 169, for coordinating with locating part, limiting the position of guard shield 154, preventing guard shield 154 from sliding relative to the direction of portable cutter 150 along vertical circular saw blade 56 plane.In the present embodiment, bottom rail end 162 and guide rail 163 facing surfaces also correspondence be provided with fin 169, thus make locating part more stable with coordinating of arc-shaped guide rail 160.
Extend a spacing preiection 168 at the second guiding cheekn 166 back to the centre position, side of the 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 arranges 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 coordinated with depth adjustment 90 as required arranges spacing preiection 168.
In order to strengthen the stress intensity of two arc-shaped guide rails 160, between the second guiding cheekn 166 of two arc-shaped guide rails 160, being provided with guard shield sidewall 170, thus making the shape of two arc-shaped guide rails 160 not easily deformation occur, extending 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 centre position towards saw blade host cavity 161 of guard shield sidewall 170, corresponding locating part is set inside housing front portion 156 coordinates with arc-shaped guide rail 160, thus also can realize guard shield 154 and slide relative to portable cutter 150.
See also Figure 18 and Figure 20.The housing anterior 156 of portable cutter 150 is respectively arranged with locating part with two side-wall outer side of the axis perpendicular of tool drives axle 53, and the locating part of every side is all positioned at tool drives axle 53 side contrary with cut direction F, between the motor namely 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 contacting with the first guiding cheekn 164 of arc-shaped guide rail 160 is phase linear, and second group of locating part is used for contacting with the second guiding cheekn 166 is phase linear.
Described first group of locating part and described second group of locating part often can be organized and at least comprise a locating part, are namely at least two with the quantity of the described locating part joined together by each arc-shaped guide rail 160.When the locating part quantity that in first group of locating part and second group of locating part, often group comprises is one, then first group of locating part of housing 42 both sides is contrary with the matching relationship between the first side wall and the second sidewall with second group of locating part, namely first group of locating part of housing 42 side linearly contacts with the first side wall, second group of locating part linearly contacts with the second sidewall, then first group of locating part of housing 42 opposite side linearly contacts with the second sidewall, and the second sidewall linearly contacts with the first side wall.So arrange and can prevent guard shield 154 from shaking, thus ensure guard shield 154 can be stable slide relative to housing 42.
In the present embodiment, first group of locating part comprises the first locating part, the second locating part, second group of locating part is the 3rd locating part, and the first locating part and the second locating part all contact with the first arcuate flanks 165 is phase linear, the 3rd locating part arcuately position of guide rail 160 bearing of trend between the first locating part and the second locating part linearly contacting with the second arcuate flanks 167, thus effectively restriction guard shield 154 produces displacement relative to the normal direction of arc-shaped guide rail 160.
Certainly, first locating part, the position setting of the second locating part and the 3rd locating part is not limited to the first locating part and contacts with the first arcuate flanks 165 is phase linear with the second locating part, 3rd locating part contacts with the second arcuate flanks 167 is phase linear, it can also be arranged to the first locating part and contact with the first arcuate flanks 165 is phase linear with the 3rd locating part, second locating part contacts with the second arcuate flanks 167 is phase linear, in like manner it can also be arranged to the second locating part and linearly contact with the first arcuate flanks 165 with the 3rd locating part, first locating part linearly contacts with the second arcuate flanks 167.Those skilled in the art also may make other changes, as long as but its function and effect and the present invention same or similar, all should be covered by scope.
In the present embodiment, first locating part, the second locating part are identical with the structure of the 3rd locating part is respectively bearing 172a, bearing 172b and bearing 172c, the external diameter of three bearings is less than the distance between the first arcuate flanks 165 and the second arcuate flanks 167, and is greater than the distance between the fin 169 of the first guiding cheekn 164 and the fin 169 of the second guiding cheekn 166.The structure of aforementioned three bearings is identical with the bearing 124 that the first embodiment provides, and does not describe in detail as space is limited at this.When guard shield 154 is mounted to portable cutter 150, fin 169 can between described three bearings and housing front portion 156.
Certainly, the size of three bearings is not limited to aforementioned description, it can also be the distance that the external diameter of three bearings also can equal between the first arcuate flanks 165 and the second arcuate flanks 167, and now the first locating part, the second locating part linearly contact with the second arcuate flanks 167 with the first arcuate flanks 165 with the 3rd locating part simultaneously.Those skilled in the art also may make other changes, as long as but its function and effect and the present invention same or similar, all should be covered by scope.
The mounting means of bearing 172a, bearing 172b and bearing 172c also can be identical with the mounting means of the bearing 124 in the first embodiment, but in the present embodiment, bearing 172a, bearing 172b and bearing 172c are installed on housing front portion 156 respectively by screw 174a, screw 174b and screw 174c.
Because aforementioned three bearings are identical with the mounting structure of three screws, be only described in detail for the fit system of screw 174a and bearing 172a at this.
Screw 174a comprises head of screw and screw tail, screw tail can pass the bearing inner race of bearing 172a and be threaded io housing front portion 156, bearing 172 is sandwiched between head of screw and fin 169, thus realizes the fixing of bearing 172a position, the in like manner position of rigid bearing 172b and bearing 172c.Now, the fin 169 of two arc-shaped guide rails 160 is sandwiched between the locating part of anterior 156 both sides of housing, thus guard shield 154 can not be swung relative to housing anterior 156, and then improves the stability in cutting process.
When guard shield 154 is assembled to portable cutter 150, two arc-shaped guide rails 160 coordinate with the locating part of 156 both sides, housing front portion respectively, and guard shield 154 is slided relative to portable cutter 150, and saw blade host cavity 161 can be contained in anterior 156 inside of housing.Simultaneously, user can the position of regulation depth adjusting device 90, limits the cutting-in of portable cutter 150, and namely when guard shield 154 is along after locating part slip certain distance, spacing preiection 168 can prop up depth adjustment 90, thus realizes depthkeeping cutting.
Refer to Figure 18, when guard shield 154 is mounted on portable cutter 150, arc-shaped guide rail 160 and locating part form a guard shield guiding mechanism, and guard shield 154 is by the 156 stable slips anterior relative to housing of described guard shield guiding mechanism.And described guard shield guiding mechanism entirety is positioned at tool drives axle 53 side contrary with cut direction F, namely between the motor in tool drives axle 53 and housing rear portion 46, thus make to be positioned at tool drives axle 53 and can not be blocked by described guard shield guiding mechanism away from the through hole 159 of housing 42 side, thus enable user clearly observe the position of saw blade 56 by through hole 159, any blocking can't be subject to, thus it possesses a good visual angle, brings facility to apparatus cutting work.
Quantity corresponding to arc-shaped guide rail 160 is only the situation of, can in housing anterior 156 and the position being positioned at close housing 42 arranges described locating part coordinates with arc-shaped guide rail 160, now described locating part at least comprises two locating parts, but preferred described locating part is three, now, the guard shield guiding mechanism entirety be made up of locating part and arc-shaped guide rail 160 is positioned at tool drives axle 53 side contrary with cut direction F, namely between the motor in tool drives axle 53 and housing rear portion 46, now the structure of described guard shield guiding mechanism is very simple, thus make overall structure have the cost at the more end, and easily assemble.
Arc-shaped guide rail 160 can exchange with the position of described locating part, namely arc-shaped guide rail 160 can be arranged at the position that housing anterior 156 corresponds to aforementioned locating part, described locating part is installed on guard shield 154, namely arranges hold-down arm, for mounting limit part in the position of the aforementioned arc-shaped guide rail of correspondence.Setting like this also can realize guard shield 154 slip stable relative to portable cutter 150.
The quantity of locating part is not limited to aforementioned first locating part, the second locating part and the 3rd locating part, and it can also comprise the 4th locating part, the 5th locating part etc. as required.
See also Figure 18, Figure 21 and Figure 22.Eliminate manufacturing tolerance for the ease of assembling and improving assembly precision, at least one group in first group of locating part and second group of locating part can possess position adjustment function, namely it comprise at least one can relative to the locating part of the transverse shifting of arc-shaped guide rail 160.In the present embodiment, be that second group of locating part possesses described position adjustment function, namely bearing 172c bearing inner race 176 and there is gap between screw tail, thus make bearing 172c produce certain deviation relative to the center line of screw 174, and then realize bearing 172c and be moved relative to the transverse direction of arc-shaped guide rail 160.When installing described three bearings, the position of bearing 172a and bearing 172b can be first made first to fix, then make the two prop up the first arcuate flanks 65 simultaneously, now by regulating bearing 172c relative to arc-shaped guide rail 160 transverse shifting, the second arcuate flanks 167 is propped up to make it, realize closely cooperating between locating part and arc-shaped guide rail 160, and eliminate manufacturing tolerance.
First group of locating part also can possess described position adjustment function, but in the present embodiment, the first locating part in first group of locating part and the second locating part all do not possess described position adjustment function, namely bearing 172a and bearing 172b is and coaxially arranges with screw and to be fixed on housing front portion 156, can not relative to arc-shaped guide rail 160 transverse shifting.Setting like this makes the first locating part, the second locating part and the 3rd locating part constitute a triangle, thus the structure formed is very firm, when needing to regulate the position relationship between locating part and arc track 160, only need adjustment the 3rd locating part, simple to operate, and then offer convenience to user.
Comprise at most two in first group of locating part and the whole locating parts included by second group of locating part and relative to the locating part of arc-shaped guide rail 160 transverse shifting, now can not eliminate tolerance by adjustable locating part.When first group of locating part comprise can not be two relative to the quantity of the locating part of arc-shaped guide rail 160 transverse shifting time, the locating part in second group of locating part all can relative to arc-shaped guide rail 160 transverse shifting.When first group of locating part comprise can not be one relative to the quantity of the locating part of arc-shaped guide rail 160 transverse shifting time, then comprising at most one in second group of locating part can not relative to the locating part of arc-shaped guide rail 160 transverse shifting.In like manner, vice versa.Setting like this just can eliminate manufacturing tolerance relative to the locating part of arc-shaped guide rail 160 transverse shifting by regulating, and makes the cooperation between guard shield 154 and arc-shaped guide rail 160 more smooth and easy.
Be four citings with the quantity of locating part, first group of locating part can comprise the first locating part, the second locating part and the 3rd locating part, second group of locating part comprises the 4th locating part, and the first locating part, the second locating part can be adopted linearly to contact with the first arcuate flanks 165 with the 3rd locating part, the mode that the 4th locating part linearly contacts with the second arcuate flanks 167.
Now, in first group of locating part maximum two can not opposing arcuate guide rail 160 lateral adjustments, such as the first locating part and the second locating part can not relative to arc-shaped guide rail 160 transverse shiftings, and the 3rd locating part can relative to arc-shaped guide rail 160 transverse shifting.If described first locating part, described second locating part and described 3rd locating part are all unadjustable, then now due to the problem of the accuracy of manufacture, being easy to the situation occurring that three cannot linearly contact with the first arcuate flanks 165 simultaneously, now just cannot eliminating tolerance by regulating locating part relative to arc-shaped guide rail 160 transverse shifting.Can not relative to the situation of arc-shaped guide rail 160 transverse shifting corresponding to having two locating parts in first group of locating part, the 4th locating part in second group of locating part relative to arc-shaped guide rail 160 transverse shifting, so must can eliminate the tolerance manufacturing and produce.Otherwise, 4th locating part can become a triangle with the first locating part with the second locating part, fixing by the 4th locating part to the length of perpendicular that opposite side is made in this triangle, if three locating parts in this triangle are because the reason of manufacturing tolerance causes linearly contacting with corresponding arc-shaped guide rail 160 sidewall simultaneously, namely may be the width that the length of vertical line is less than arc-shaped guide rail 160, now just cannot eliminate tolerance by adjustment the 3rd locating part, thus in described triangle three locating parts cannot be made simultaneously linearly to contact with the sidewall of arc-shaped guide rail 160.
When only have in first group of locating part a locating part can not relative to arc-shaped guide rail 160 transverse shifting time, such as the first locating part can not relative to arc-shaped guide rail 160 transverse shifting, second locating part and the 3rd locating part can relative to arc-shaped guide rail 160 transverse shiftings, and the 4th locating part now in second group of locating part can be arranged to can not relative to arc-shaped guide rail 160 transverse shifting.The length of the line segment be usually made up of the first locating part and the 4th locating part is necessarily greater than the width of arc-shaped guide rail 160, therefore certainly exist the situation that the first locating part linearly contacts with the sidewall of arc-shaped guide rail 160 with the 4th locating part simultaneously, now regulate the second locating part and the 3rd locating part just can realize four locating parts and linearly contact with the corresponding sidewall of arc-shaped guide rail 160 simultaneously.
When the quantity of locating part is five, first group of locating part can comprise the first locating part, the 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 linearly contacting with the first arcuate flanks 165, and second group of locating part linearly contacts with the second arcuate flanks 167.When possess in first group of locating part two or three can not locating part relative to arc-shaped guide rail 160 transverse shifting time, situation, with aforementioned description, does not repeat to introduce at this.When only comprise in first group of locating part one can not locating part relative to arc-shaped guide rail 160 transverse shifting time, as the first locating part can not relative to arc-shaped guide rail 160 transverse shifting, the second locating part and the 3rd locating part can relative to arc-shaped guide rail 160 transverse shiftings.One only can be had relative to arc-shaped guide rail 160 transverse shifting, can not can not to be formed leg-of-mutton situation relative to the locating part of arc-shaped guide rail 160 transverse shifting to avoid appearance by three in the 4th locating part now in second group of locating part and the 5th locating part.
In like manner; when the quantity of locating part is that six, seven or eight etc. can be arranged according to the principle of aforementioned description; be not described in detail as space is limited at this; as long as but the function of its technical scheme adopted and realization and the present invention same or similar, all should be covered by scope.
Also can draw thus, two locating parts are selected arbitrarily in first group of locating part, a locating part is selected arbitrarily in second group of locating part, then comprising at most two in described three locating parts can not relative to the locating part of arc-shaped guide rail 160 transverse shifting, otherwise there will be cannot with the corresponding phase linear situation about contacting of arc-shaped guide rail 160 sidewall, locating part is caused to waste or arc-shaped guide rail 160 can produce transverse shifting and causes guard shield 154 to shake affecting cutting accuracy.
Certainly, realize locating part and be not limited to aforementioned description relative to the technical scheme that the transverse direction of arc-shaped guide rail 160 is moved, it can also for adopting compared with the bearing of large diameter and screw fit, or bearing and screw are coaxially arranged, but the position of installing described screw at housing anterior 156 arranges the laterally extending bar hole of opposing arcuate guide rail 160, inside housing front portion 156, arrange screw cap be connected with described screw thread, slided in described bar hole by screw and realize position adjustments etc., at this as space is limited, exhaustive list is not carried out for the structure realizing aforementioned function, but those skilled in the art are under the enlightenment of the technology of the present invention marrow, the technical scheme same or analogous with functional structure of the present invention made, all should be covered by scope.
Aforementioned structure is not limited to first group of locating part and linearly contacts with the first arcuate flanks 165, second group of locating part linearly contacts with the second arcuate flanks 167, it can also be arranged to first group of locating part and linearly contact with the second arcuate flanks 167, and second group of locating part linearly contacts with the first arcuate flanks 165.Namely when assembling, first first group of locating part is mounted on arc-shaped guide rail 160, and make it against living the second arcuate flanks 167, then second group of locating part is mounted to arc-shaped guide rail, and make it against the first arcuate flanks 165 by the position of adjustment second group of locating part.So arrange and structure can be made more flexible, provide more choices to assembly process.
Moreover, the mode that in the present invention, locating part coordinates with guide rail is not limited to arc-shaped guide rail, the guide rail linearly extended also can adopt the scheme in the present invention, mounting means and fit structure are all same or similar with the technical scheme recorded in embodiment of the present invention, do not describe in detail as space is limited at this.
Refer to Figure 18 and Figure 23, anterior 156 sidewalls vertical with saw blade 56 plane of the housing of portable cutter 150 are provided with laser alignment device 178, for providing laser guide for user in cut workpiece process.Also be provided with dust-exhausting port 180 in housing front portion 156, it is positioned at housing anterior 156 with on the sidewall of 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, those skilled in the art also may make under the enlightenment of the technology of the present invention marrow other change, as long as but its realize function and the present invention same or similar, all should be covered by scope.
Claims (10)
1. a portable cutter, comprising:
For the saw blade of cut workpiece;
Housing;
Movably be installed on the guard shield on described housing, this guard shield is provided with saw blade through hole and is provided for saw blade and extends there through, this guard shield movably moves between the first position and the second position relative to described housing, when guard shield is positioned at primary importance, described saw blade does not pass from saw blade through hole, when guard shield is positioned at the second place, described saw blade passes from described saw blade through hole;
It is characterized in that:
One in described guard shield and described housing is provided with exposed guide rail, another in described guard shield and described housing is provided with at least two locating parts, described guide rail comprises the first guiding cheekn and the second guiding cheekn, and described at least two locating parts are between described first guiding cheekn and the second guiding cheekn.
2. portable cutter according to claim 1, is characterized in that: described first guiding cheekn and the facing surface of the second guiding cheekn are provided with fin, and described fin is sandwiched between described locating part and described housing.
3. portable cutter according to claim 2, is characterized in that: described housing is provided with depth adjustment, and described second guiding cheekn is provided with back to the side of described first guiding cheekn the spacing preiection coordinated with described depth adjustment.
4. a portable cutter, comprising:
For the saw blade of cut workpiece;
Housing;
Movably be installed on the guard shield on described housing, this guard shield is provided with saw blade through hole and is provided for saw blade and extends there through, this guard shield movably moves between the first position and the second position relative to described housing, when guard shield is positioned at primary importance, described saw blade does not pass from saw blade through hole, when guard shield is positioned at the second place, described saw blade passes from described saw blade through hole;
It is characterized in that:
One in described guard shield and described housing is provided with exposed guide rail, and another in described guard shield and described housing is provided with at least two locating parts coordinated with described guide rail.
5. portable cutter according to claim 4, is characterized in that: described guide rail is located on described guard shield, and described locating part is located on described housing.
6. portable cutter according to claim 4, is characterized in that: the quantity of described guide rail is two, and described two guide rails relatively and be arranged in parallel.
7. portable cutter according to claim 4, is characterized in that: described guard shield also has the saw blade host cavity with the mating shapes of described saw blade through hole, and described saw blade host cavity can be partially housed in described housing.
8. according to the portable cutter described in claim 4 to 7, it is characterized in that: described guide rail is arc-shaped guide rail, and the center of circle of arc is positioned at outside described portable cutter.
9. portable cutter according to claim 8, is characterized in that: described housing comprises the anterior housing rear portion with being oppositely arranged of housing of saw blade described in partial receipt, and the described center of circle is positioned at the side of described portable cutter away from described housing rear portion.
10. a portable cutter, comprising:
For the saw blade of cut workpiece;
Housing;
Movably be installed on the guard shield on described housing;
It is characterized in that:
One in described guard shield and described housing is provided with exposed guide rail, and another in described guard shield and described housing is provided with at least two locating parts coordinated with described guide rail.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102976104A CN102407386A (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102976104A Division CN102407386A (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
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|---|---|
| CN105345143A true CN105345143A (en) | 2016-02-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510599218.8A Pending CN105345143A (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
| CN2010102976104A Pending CN102407386A (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102976104A Pending CN102407386A (en) | 2010-09-21 | 2010-09-21 | Portable cutting machine |
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| CN107553210A (en) * | 2017-10-25 | 2018-01-09 | 锐奇控股股份有限公司 | Profile cut-off machine protector and Profile cut-off machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2885469Y (en) * | 2006-03-29 | 2007-04-04 | 王骥 | Work mechanism of cutting machine |
| EP1177868B1 (en) * | 2000-05-12 | 2008-08-20 | Exakt Precision Tools Limited | Safety improvements for power tool |
| CN201405384Y (en) * | 2009-04-20 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Portable cutter |
| 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 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101085478A (en) * | 2007-02-12 | 2007-12-12 | 王骥 | Composite saw with protecting cover opening 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 |
-
2010
- 2010-09-21 CN CN201510599218.8A patent/CN105345143A/en active Pending
- 2010-09-21 CN CN2010102976104A patent/CN102407386A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1177868B1 (en) * | 2000-05-12 | 2008-08-20 | Exakt Precision Tools Limited | Safety improvements for power tool |
| CN2885469Y (en) * | 2006-03-29 | 2007-04-04 | 王骥 | Work mechanism of 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 |
| 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 |
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| CN102407386A (en) | 2012-04-11 |
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