CN103537753A - Portable cutting machine - Google Patents
Portable cutting machine Download PDFInfo
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- CN103537753A CN103537753A CN201210243830.8A CN201210243830A CN103537753A CN 103537753 A CN103537753 A CN 103537753A CN 201210243830 A CN201210243830 A CN 201210243830A CN 103537753 A CN103537753 A CN 103537753A
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- saw blade
- base plate
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- housing
- portable cutter
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Abstract
The invention provides a portable cutting machine. The portable cutting machine comprises a shell, a motor and a cutting unit, wherein the motor is contained in the shell, the cutting unit is connected with the shell and comprises a saw blade, an upper protective shield and a lower protective shield, the saw blade is arranged on a saw blade shaft and is driven by the motor to rotate, the upper protective shield is fixedly connected with the shell, and the lower protective shield rotates around the axis of the saw blade shaft and enables the saw blade to be exposed; the lower protective shield is rotationally arranged on the saw blade shaft. The lower protective shield is rotationally arranged on the saw blade shaft so that the diameter of a hub on the lower protective shield can be reduced, and therefore the usable part of the saw blade is enlarged, and cutting ability of the whole portable cutting machine is further improved.
Description
Technical field
The present invention relates to a kind of power tool, especially relate to a kind of portable cutter.
Background technology
Traditional portable cutter, for example portable electric annular saw generally includes a saw blade that is used for processing work, is used for driving the motor of this saw blade, and motor is arranged in housing rotationally, and main handle is used for for operator, holding in operating process.This electric circular saw comprises a base plate, a upper shield and a lower shield, and the top that upper shield is positioned at base plate is fixedly connected with housing, at any time saw blade top is closed at wherein; Lower shield is positioned at below base plate, and during work, expose the rotatable saw blade bottom that makes of lower shield.The shortcoming of this traditional electrical annular saw is: lower shield is arranged on housing rotationally, thereby make the diameter of the wheel hub that lower shield is connected with housing larger, and the diameter of wheel hub will make more greatly saw blade reduce by part, and then reduced the cutting power of whole portable cutter.
Summary of the invention
Technical problem to be solved by this invention is: a kind of portable cutter with larger cutting power is provided.
In order to address the above problem, the invention provides a kind of portable cutter, this portable cutter comprises: housing; Motor, is housed in described housing; Cutter unit, is connected with described housing, and described cutter unit comprises and is arranged on saw blade axis and driven the saw blade of rotation, the upper shield being fixedly connected with housing and rotated and expose the lower shield of saw blade around the axis of saw blade axis by motor; The base plate being connected with upper shield, described base plate is provided with saw blade through hole for saw blade is therefrom passed, and described base plate also comprises for the base plate bottom against workpiece with from the upwardly extending base plate front side wall in base plate bottom; Described lower shield is rotating to be arranged on described saw blade axis.
In disclosed portable cutter, be arranged on described saw blade axis lower shield is rotating, the diameter that can reduce the wheel hub on lower shield is so set, thereby saw blade can be increased by part, and then increase the cutting power of whole portable cutter.
Preferably, described lower shield is by the rotating described saw blade axis of bearing.
Preferably, described base plate front side wall is provided with the friction pad leaning with surface of the work.
Preferably, described friction pad comprises the curved surface leaning with surface of the work.
Preferably, described housing comprises the housing rear portion that housing is anterior, lengthwise extends and the grip part between described housing front portion and described housing rear portion being connected with upper shield, wherein said motor is rotatable is arranged at described housing rear portion, and described saw blade axis arranges with described motor output shaft is vertical.
Preferably, described portable cutter comprises the support being connected with described base plate, described upper shield is connected with described support for regulating depth of cut rotationally by being parallel to the first axle of described saw blade axis, and described upper shield can not expose between the minimum cut position of described saw blade through hole and maximum cutting position that described saw blade exposes described saw blade through hole depth capacity and move at described saw blade.
Preferably, when maximum cutting position, the angle that the lengthwise of described grip part extends between axis and described base plate bottom is not more than 20 degree.
Preferably, described support is provided with the first guide groove, and described the first guide groove is arc guide barrel, and the center of circle corresponding to circular arc at the first guide groove place is positioned on first axle.
Preferably, described upper shield and described the first guide groove are arranged at respectively the both sides of described housing front portion.
Preferably, around the second axis that is parallel to described base plate bottom, rotating and described base plate is connected for regulating cutting angle described support, described support is provided with the second guide groove, and described the second guide groove is arc guide barrel, and the center of circle corresponding to circular arc at the second guide groove place is positioned on the second axis.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is done to further detailed description.
Fig. 1 is the stereogram of the portable cutter that discloses of the present invention.
Fig. 2 is the sectional perspective exploded view of the portable cutter that discloses of Fig. 1.
Fig. 3 is along the cut-away view of A-A direction in Fig. 1.
Fig. 4 is the sectional perspective exploded view of the portable cutter that discloses of Fig. 1.
Fig. 5 is the front view of the portable cutter that discloses of Fig. 1, and now portable cutting machine is in minimum cut position.
Fig. 6 is the front view of the portable cutter that discloses of Fig. 1, and now portable cutting machine is in maximum cutting position.
Fig. 7 is the stereogram that portable cutter that Fig. 1 discloses is seen from opposite side, and now saw blade and base plate bottom vertical arrange.
Fig. 8 is the stereogram that portable cutter that Fig. 1 discloses is seen from opposite side, and now saw blade and base plate bottom angled arrange.
Fig. 9 is the schematic diagram of the portable cutter that discloses of Fig. 1 when plug-in type is cut.
Figure 10 is the schematic diagram of the portable cutter that discloses of Fig. 1 when plug-in type is cut.
Figure 11 is the schematic diagram of the portable cutter that discloses of Fig. 1 when plug-in type is cut.
Figure 12 is the schematic diagram of the portable cutter that discloses of Fig. 1 when parallel-moving type cuts.
In figure:
30. take formula cutting machine 32. housing 34. cutter units
The 36. anterior 42. housing rear portions of base plate 40. housings
44. grip part 46. saw blade axis 48. saw blades
50. upper shield 52. lower shield 54. handles
56. accommodate part 58. wheel hub 60. bearings
62. bearing inner race 64. bearing outer ring 66. base plate bottoms
68a-d base plate is forward and backward, left and right sidewall 70. saw blade through holes
72. friction pad 76. first axle 78. locking mechanisms
80. support 82. frame bottom
84a-c. support is forward and backward, right side wall 86. installing holes
88. through hole 90. depth adjustment support 92. first guide grooves
94. handle 95. bolt 99. indication pieces
97. screwed hole 98. second axis 100. retaining mechanisms
102. bevel angle adjustment support 104. second guide groove 106. knobs
108. nut 110. bolt 111. connecting holes
112. through hole 114. contact wire 116. curved surfaces
200. workpiece 300. workpiece
The specific embodiment
Refer to Fig. 1, embodiment of the present invention provides a kind of portable cutter 30.Portable cutter 30 comprises housing 32, be housed in motor (not shown) in housing 32, be positioned at housing 32 for the transmission component (not shown) of transferring power, the cutter unit 34 being connected with housing 32, the base plate 36 being connected with cutter unit 34, be positioned at and on housing 32, control the switch module (not shown) whether motor works.In description of the invention, unless otherwise noted, direction term, as front, back, left, right, up and inferior, it is all the direction with respect to normal this portable cutter of use, as the direction of advance that defines portable cutter is front, the direction contrary with the direction of advance of portable cutter is rear etc.
The power supply of portable cutter 30 is AC power, by AC power to motor power supplying.Certainly portable cutter 30 also can adopt direct current energy to power, and on portable cutter 30, power brick is installed, by power brick to motor power supplying.
Motor can be carbon brush motor, brushless motor etc., or corresponding to the energy source of portable cutter 30, motor can be alternating current motor or d.c. motor.Motor has motor output shaft (not shown), and by gear is installed on motor output shaft, the rotation of motor is exported.
The part being connected with housing rear portion 42 at housing anterior 40 forms connecting portion 44.In order more rationally to utilize the structure of connecting portion 44, connecting portion 44 has been designed to the grip part 44 of portable cutter 30, user carries out cutting work by holding grip part 44 operation portable cutters 30.User is equivalent to form fulcrum between housing anterior 40 and housing rear portion 42 when holding grip part 44, the part of fulcrum both sides can restrict under gravity effect separately mutually, realize after user holds grip part 44, portable cutter 30 is in state more stably, be very easy to carry out cutting operation, improved the comfort level of operation, preferred, the center of gravity of portable cutter 30 is positioned on grip part 44, and now portable cutter 30 has best operational comfort.
Certainly; grip part is not limited to be formed on connecting portion 44; also grip part can be set in addition above housing 32; this grip part is connected to respectively on housing anterior 40 and housing rear portion 42 etc.; those skilled in the art also may make other change; but as long as its function and effect and the present invention are same or similar, all should be covered by protection domain of the present invention.
The longitudinal extending axis of grip part 44 can with the longitudinal extending axis E phase almost parallel at housing rear portion 42 or the setting that overlaps, in the present embodiment, the longitudinal extending axis E at the longitudinal extending axis of grip part 44 and housing rear portion 42 overlaps.
Refer to Fig. 1 and Fig. 2, cutter unit 34 comprises saw blade 48 and the cover assembly that is arranged on saw blade axis 46 and is driven rotation by motor.Cover assembly comprises the upper shield 50 that is fixedly connected with housing front portion 40 and around the lower shield 50 of the axis F rotation of saw blade axis 46.Upper shield 50 is for hiding the upper part of saw blade 48, and lower shield 50 is for hiding the lower part of saw blade 48.Certainly, can be according to not same safety requirement, upper and lower guard shield 50 and 52 can be completely or not exclusively coated whole saw blade 48.During work, lower shield 50 is promoted by workpiece and rotates around the axis F of saw blade axis 46, thereby the lower part of saw blade 48 is exposed for cut workpiece.On lower shield 52, be provided with handle 54, operate this handle 54 and make lower shield 52 around the axis F rotation of saw blade axis 46, the lower part of saw blade 48 is exposed.
Refer to Fig. 2, lower shield 52 comprises accommodates part 56 and wheel hub 58 with accommodating part 56 and being connected for what accommodate saw blade 48.By direct rotating being arranged on saw blade axis 46 of wheel hub 58, the diameter that can reduce wheel hub 58 being so set, thereby saw blade 48 can be increased by part, and then increased the cutting power of whole portable cutter.
Refer to Fig. 3, between saw blade axis 46 and wheel hub 58, be provided with bearing 60.Bearing 60 comprises bearing inner race 62 and bearing outer ring 64.The relative bearing inner race 62 of bearing outer ring 64 is rotatable.Between bearing inner race 62 and saw blade axis 46, it is interference fit.Between bearing outer ring 64 and wheel hub 58, it is interference fit.The axis of saw blade axis 46 is F, and so, lower shield 52 can, smoothly around the axis F rotation of saw blade axis 46, not rotate but can not follow saw blade axis 46.
Certainly, lower shield 52 is set directly to saw blade axis 46 or is arranged on this mounting means of saw blade axis 46 by bearing 60, be not limited to the portable cutter of enumerating in the present embodiment, this mounting means is equally applicable to common electric circular saw, desk-top diagonal cutting saw etc. with the cutting machine of lower shield, and can arrive the effect that increases cutting power.
Transmission component and motor output shaft connect, and the power of motor output shaft output is passed to saw blade 48 by saw blade axis 46.Saw blade 48 is installed on one end of saw blade axis 46, and the other end of saw blade axis 46 can connect by the gear of direct geared and motor output shaft, realizes motor and drives saw blade axis 46 to rotate.Certainly, between motor output shaft and saw blade axis 46, reduction gearing etc. can also be set, at this, no longer describe in detail as space is limited.The axis F of saw blade axis 46 and the vertical setting mutually of the axis of motor output shaft, or substantially vertical setting.
Refer to Fig. 4, base plate 36 comprises base plate bottom 66, in the course of work, base plate bottom 66 is resisted against to surface of the work.Base plate is forward and backward, left and right sidewall 68a-d roughly surrounds one week and 66 extend upward from base plate bottom.Base plate bottom 66 is provided with saw blade through hole 70, and saw blade through hole 70 is for therefrom passing saw blade 48.The outside of base plate front side wall 68 is provided with friction pad 72.The concrete effect of friction pad 72 can be described in detail in the back.
Support front side wall 84a is provided with symmetrically arranged installing hole 86, and housing front portion 40 is provided with through hole 88.Bearing pin (not shown), through installing hole 86 and through hole 88, makes housing 32 first axle 76 pivotables around bearing pin restriction together with cutter unit 34.Certainly, support 80 and housing front portion 40 can also well known to a person skilled in the art that structure installs by bolt, screw, rivet or other.
Locking mechanism 78 comprises handle 94, is connected to the bolt 95 on handle 94 and is arranged on the screwed hole 97 on housing front portion 40.Bolt 95 coordinates with screwed hole 97 through the first guide groove 94.By rotary handle 94, bolt 95 is locked in screwed hole 97, thereby by housing 32 and cutter unit 34 with respect to bracket locked.
In the present embodiment, upper shield 50 and the first guide groove 92 are arranged at respectively the both sides of housing front portion 40.So arrange, facilitated operator to use handle 94, and can reduce the length of bolt, increase operability.
For the convenient depth of cut of observing, the position near the first guide groove 92 on depth adjustment support 90 is provided with the scale (not shown) that indicates cutting-in, is provided with indication piece 99 on bolt 95.Once unscrew bolt 95, operator moves cutting element 36, thereby makes bolt 95 in the interior slip of the first guide groove 92, and housing 32, cutter unit 34 move to change the depth of cut of saw blade 48 together around first axle 76 with respect to base plate 36 and support 80.Now can observe cutting angle by indication piece 99 and the scale being arranged on depth adjustment support 90.Once arrival desired locations, rotatable handgrip 94 is to clamp cutter unit 34 to remain on desired locations.
As shown in Figure 5 and Figure 6, cutter unit 34 moves between minimum cut position and maximum cutting position around first axle 76.As shown in Figure 5, when minimum cut position, saw blade 48 is not through the saw blade through hole 70 on base plate 36, and between saw blade axis 46 and base plate 36, distance is maximum.As shown in Figure 6, when maximum cutting position, in the saw blade through hole 70 of saw blade 48 from base plate 36 through and saw blade axis 46 and base plate 36 between distance minimum.In this position, the angle between the longitudinal extending axis E of grip part 44 and base plate 36 is not more than 20 degree, and the great comfortableness that improves operator is so set.
Referring to Fig. 4, portable cutter 30 is also provided with bevel angle adjustment structure again, for changing the angle of cutting.Bevel angle adjustment structure can make housing 32 together with cutter unit 34 around the second axis 98 pivotables, and be fixed by the retaining mechanism 100 being arranged on base plate 36.The second axis 98 be arranged in parallel with base plate bottom 66.
The forward and backward sidewall 84a of support and 84b are provided with symmetrically arranged connecting hole 111, are respectively equipped with through hole 112 (only having marked the through hole on base plate rear wall 68b in figure) on the forward and backward sidewall 68a of base plate and 68b.Two bearing pins (not shown), respectively through close connecting hole 111 and through hole 112, make support 80, housing 32 the second axis 98 pivotables around bearing pin restriction together with cutter unit 34.Certainly, support 80 and base plate 36 can also well known to a person skilled in the art that structure installs by bolt, screw, rivet or other.
For the convenient cutting angle of observing, bevel angle adjustment support 102 is provided with the scale (not shown) that indicates cutting angle in the position near the second guide groove 104, on base plate front side wall 68a, be provided with pointer.Once unscrew knob 106, bolt 110, in the interior slip of the second guide groove 104, makes housing 32, cutter unit 34 and support 80 with respect to base plate 36, to move to change the cutting angle of saw blade 48 around the second axis 98.Now can observe portable cutter 30 cutting angles by the pointer being arranged on base plate front side wall 68a.Once arrival desired locations, can screw knob 106 to cutter unit 34 is clamped and remains on desired locations.
Seen from the above description, support 80 comprises depth adjustment support 90 and bevel angle adjustment support 102, that is to say by the first guide groove 92 for depth adjustment with for the second guide groove 104 of bevel angle adjustment and is all arranged on support 80.So arrange, can reduce processing cost, can also increase the rigidity of support 80 and the machining accuracy of portable cutter 30 simultaneously.
As shown in Figure 7, when saw blade 48 is vertical with base plate bottom 66, base plate is forward and backward, left and right sidewall 68a-d roughly surrounds, and one week support is forward and backward, right side wall 84a-c surrounds, and support is forward and backward, right side wall 84a-c presses close to respectively that base plate is forward and backward, the inner side of right side wall 68a and 68b and 68d.Now, frame bottom 82 is pressed close to base plate bottom 66.As shown in Figure 8, when unscrewing knob 106, bolt 110 is in the interior slip of the second guide groove 104, and support 80 rotatablely moves around the second axis 98, and now, support is forward and backward, right side wall 84a-c throws off that base plate is forward and backward, the inner side of right side wall 68a and 68b and 68d.Between the angle forming between frame bottom 82 and base plate bottom 66 and saw blade 48 and base plate bottom 66, the angle of formation equates, i.e. the inclined cut angle of saw blade 48.
Consult Figure 11, friction pad 72 is made by wear-resisting, anti-slip material conventionally again, for example rubber, silica gel etc.Therefore friction pad 72 can prevent that base plate 36 from having hindered cutting work in the lip-deep slip of workpiece 200; Can prevent again the surface of friction pad 72 defective work pieces 200 in the rotation process of portable cutter 30.
Between friction pad 72 and base plate bottom 66, leave gap, the more little rotation of being more convenient to portable cutter 30 in this gap certainly.Between friction pad 72 and base plate bottom 66, leave gap namely: when fit with workpiece 200 surfaces in base plate bottom 66, friction pad 72 bottom and between the surface of workpiece 200, there is certain gap L, so be arranged so that promoting portable cutter 30 along in the process of the apparent motion of workpiece 200, friction pad 72 can not contact with the surface of workpiece 200 and affect the promotion of portable cutter 30.
Certainly, friction pad 72 is set on base plate 36, thereby handled easily person realizes plug-in type, cuts this mode, be not limited to the portable cutter of enumerating in the present embodiment, this setup is equally applicable to traditional electric circular saw etc., and can arrive equally the effect that realizes plug-in type cutting.
During parallel-moving type cutting, as shown in figure 12, by switch module starter, base plate bottom 66 is resisted against to workpiece 300 surfaces, the parallel promotion portable cutter 30 in surface along workpiece 300, in the process promoting, workpiece 300 promotes lower shields 52 and further around the axis F of saw blade axis 46, rotates, thereby the saw blade 48 that exposes lower shield 52 just can be processed.So just can start in one end of workpiece 200 cutting work.Continue to promote forward portable cutter 30 and carry out cut workpiece, just can process and there is the elongated slot of certain length or workpiece 200 is cut off.
The present invention is not limited to aforementioned embodiments, and those skilled in the art also may make other changes under the enlightenment of the technology of the present invention marrow, but as long as function and the present invention of its realization are same or similar, all should be covered by protection domain of the present invention.
Claims (10)
1. a cutting machine, comprising:
Housing;
Motor, is housed in described housing;
Cutter unit, is connected with described housing, and described cutter unit comprises and is arranged on saw blade axis and driven the saw blade of rotation, the upper shield being fixedly connected with housing and rotated and expose the lower shield of saw blade around the axis of saw blade axis by motor;
The base plate being connected with upper shield, described base plate is provided with saw blade through hole for saw blade is therefrom passed, and described base plate also comprises for the base plate bottom against workpiece with from the upwardly extending base plate front side wall in base plate bottom;
It is characterized in that: described lower shield is rotating to be arranged on described saw blade axis.
2. portable cutter according to claim 1, is characterized in that: described lower shield is by the rotating described saw blade axis of bearing.
3. portable cutter according to claim 1, is characterized in that: described base plate front side wall is provided with the friction pad leaning with surface of the work.
4. portable cutter according to claim 3, is characterized in that: described friction pad comprises the curved surface leaning with surface of the work.
5. portable cutter according to claim 1, it is characterized in that: described housing comprises the housing rear portion that housing is anterior, lengthwise extends and the grip part between described housing front portion and described housing rear portion being connected with upper shield, wherein said motor is rotatable is arranged at described housing rear portion, and described saw blade axis arranges with described motor output shaft is vertical.
6. portable cutter according to claim 5, it is characterized in that: described portable cutter comprises the support being connected with described base plate, described upper shield is connected with described support for regulating depth of cut rotationally by being parallel to the first axle of described saw blade axis, and described upper shield can not expose between the minimum cut position of described saw blade through hole and maximum cutting position that described saw blade exposes described saw blade through hole depth capacity and move at described saw blade.
7. portable cutter according to claim 6, is characterized in that: when maximum cutting position, the angle that the lengthwise of described grip part extends between axis and described base plate bottom is not more than 20 degree.
8. portable cutter according to claim 6, is characterized in that: described support is provided with the first guide groove, and described the first guide groove is arc guide barrel, and the center of circle corresponding to circular arc at the first guide groove place is positioned on first axle.
9. portable cutter according to claim 8, is characterized in that: described upper shield and described the first guide groove are arranged at respectively the both sides of described housing front portion.
10. portable cutter according to claim 6, it is characterized in that: around the second axis that is parallel to described base plate bottom, rotating and described base plate is connected for regulating cutting angle described support, described support is provided with the second guide groove, described the second guide groove is arc guide barrel, and the center of circle corresponding to circular arc at the second guide groove place is positioned on the second axis.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243830.8A CN103537753A (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
| CN201910319501.9A CN110014190B (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210243830.8A CN103537753A (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910319501.9A Division CN110014190B (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103537753A true CN103537753A (en) | 2014-01-29 |
Family
ID=49961824
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210243830.8A Pending CN103537753A (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
| CN201910319501.9A Active CN110014190B (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910319501.9A Active CN110014190B (en) | 2012-07-13 | 2012-07-13 | Portable cutting machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103537753A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250782A (en) * | 2018-11-30 | 2020-06-09 | 宝时得科技（中国）有限公司 | Portable cutting machine |
| CN113840690A (en) * | 2019-06-04 | 2021-12-24 | 罗贝尔铁路建筑机械有限责任公司 | Abrasive cutting machine and method for cutting through a rail of a track |
| CN114951820A (en) * | 2022-04-12 | 2022-08-30 | 宁波天和电动工具有限公司 | Multifunctional mini saw |
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Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3888165B2 (en) * | 2002-01-16 | 2007-02-28 | 日立工機株式会社 | Portable cutting machine |
| CN202137453U (en) * | 2011-04-20 | 2012-02-08 | 博世电动工具（中国）有限公司 | Portable cutting tool |
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- 2012-07-13 CN CN201210243830.8A patent/CN103537753A/en active Pending
- 2012-07-13 CN CN201910319501.9A patent/CN110014190B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3317904A1 (en) * | 1983-05-17 | 1984-11-22 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Circular hand saw with protective swing hood |
| GB2302058A (en) * | 1995-06-12 | 1997-01-08 | Black & Decker Inc | Hand-held circular saw. |
| US20040107584A1 (en) * | 2001-04-20 | 2004-06-10 | Kenichirou Yoshida | Portable electric cutting device with blower mechanism |
| US20050160607A1 (en) * | 2004-01-23 | 2005-07-28 | Alex Petrenko | Circular saw for facilitating straight cuts and/or cuts at a desired angle relative to a workpiece edge |
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| CN100999112A (en) * | 2006-01-09 | 2007-07-18 | 苏州宝时得电动工具有限公司 | Electric circular saw |
| CN201175849Y (en) * | 2008-03-13 | 2009-01-07 | 胡志雄 | Opening and closing device for protection shield of miter saw |
| CN201644918U (en) * | 2010-01-04 | 2010-11-24 | 泉峰(中国)贸易有限公司 | Electric power tool |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250782A (en) * | 2018-11-30 | 2020-06-09 | 宝时得科技（中国）有限公司 | Portable cutting machine |
| CN113840690A (en) * | 2019-06-04 | 2021-12-24 | 罗贝尔铁路建筑机械有限责任公司 | Abrasive cutting machine and method for cutting through a rail of a track |
| CN113840690B (en) * | 2019-06-04 | 2024-07-30 | 罗贝尔铁路建筑机械有限责任公司 | Grinding cutter and method for cutting through rail of track |
| CN114951820A (en) * | 2022-04-12 | 2022-08-30 | 宁波天和电动工具有限公司 | Multifunctional mini saw |
| CN114951820B (en) * | 2022-04-12 | 2024-03-26 | 宁波天和电动工具有限公司 | Multifunctional mini saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110014190A (en) | 2019-07-16 |
| CN110014190B (en) | 2021-09-07 |
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Application publication date: 20140129 |
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