CN103752943B - A kind of portable circular saw - Google Patents
A kind of portable circular saw Download PDFInfo
- Publication number
- CN103752943B CN103752943B CN201410013152.5A CN201410013152A CN103752943B CN 103752943 B CN103752943 B CN 103752943B CN 201410013152 A CN201410013152 A CN 201410013152A CN 103752943 B CN103752943 B CN 103752943B
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- China
- Prior art keywords
- dial
- positioning seat
- depth
- latch segment
- circular saw
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- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 239000012634 fragment Substances 0.000 claims description 14
- 238000005520 cutting process Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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Abstract
The present invention relates to a kind of portable circular saw, comprise: housing, gearbox, saw blade, grip portions, base, protective cover, linkwork, cutting-depth positioning device, cutting-depth positioning device comprises: one is fixedly installed in the arc-shaped scale on protective cover, dial has a deep-slotted chip breaker, dial outer surface is provided with the graduation mark of instruction saw blade depth of cut; Be installed on the positioning seat outside dial by installing hole, positioning seat have a stop surface and helicoid; A protruding locating surface from gearbox; Be installed on the release handle outside positioning seat, which is provided with handle and helicoid; Be positioned at the latch segment of dial; Release handle, positioning seat and latch segment are arranged on dial by attachment screw and locking nut.Portable circular saw of the present invention realizes the quick adjustment of depth of cut, simple, convenient, and efficiency is high.
Description
Technical field
The invention belongs to hand electric fixture fields, particularly relate to a kind of portable circular saw.
Background technology
At present, the portable circular saw of cut-in type feed, when carrying out depth of cut and regulating, need first locking nut to be totally released, then retaining mechanism is placed into required depth of cut, and then locking nut is locked, operate comparatively loaded down with trivial details, not very convenient, regulate efficiency low.
Summary of the invention
The object of the invention is to provide a kind of portable circular saw, realizes simple, the quick adjustment of depth of cut.
The technical solution used in the present invention is:
A kind of portable circular saw, comprising:
Housing, it is for holding motor;
Gearbox, it is for holding gear, and one end of described gear is connected with described motor, and the other end of described gear is connected with output shaft;
Saw blade, it is connected with described output shaft;
Grip portions, it comprises main handle and assist handle, and described main handle is provided with motor switch;
Base, its lower surface is arranged to slide on workpiece or guide rail;
Protective cover, the upset of certain angle also can be carried out in its side being arranged on described base body to the side of described base, described protective cover can hold described saw blade;
Linkwork; Described gearbox is connected with described protective cover by the rotating shaft of linkwork, thus output shaft and saw blade can respect thereto or protective cover be moved between parking place and cutting into position;
It is characterized in that,
Also comprise a cutting-depth positioning device, described cutting-depth positioning device comprises:
Dial is an arc being fixedly installed on described protective cover; Arc has the deep-slotted chip breaker of a hollow, dial outer surface is provided with the graduation mark of instruction saw blade depth of cut;
Positioning seat, it is installed on the outside of described dial by installing hole, and can move along described deep-slotted chip breaker; Positioning seat having a stop surface, for locating the penetraction depth of saw blade, it being provided with helicoid along described installing hole end face;
Locating surface, it is from described gearbox outwardly directed, acts on the stop surface on described positioning seat when saw blade carries out incision action;
Release handle, it is installed on the outside of described positioning seat, it has and is easy to the handle that staff grips adjustment, which is provided with the helicoid fitted with helicoid on described positioning seat;
Latch segment, it is positioned at described dial and the different side of described positioning seat;
Attachment screw and locking nut, be installed to described release handle, positioning seat and latch segment on described dial by described attachment screw and locking nut.
Described locating surface is the end face of adjustment screw, and described adjustment screw is spun on described gearbox, and described adjustment screw is also provided with setscrew nut ordinatedly, for locating the position of described adjustment screw.
The deep-slotted chip breaker inner side end of described dial is provided with the tooth of arcuately groove trend, and described latch segment is provided with tooth towards the one side of dial, and described latch segment and described dial form tooth and engage.
Also comprise two shell fragments acted between described latch segment and described dial, the two ends that two shell fragments are arranged on latch segment act on described dial, and form tooth with the tooth on described dial and engage.
Described positioning seat is provided with the mark pointing to described graduation mark.
Described positioning seat is labeled as two, and corresponding saw blade is at band guide rail with not with depth of cut during guide rail respectively.
On described dial, the center of arc of deep-slotted chip breaker is positioned at the axle center of described rotating shaft.
The beneficial effect that the present invention reaches:
Portable circular saw of the present invention, when carrying out depth of cut and regulating, does not need locking nut to unclamp, and only needs to rotate release handle, makes the axial distance between release handle and positioning seat become large or diminish, thus realizes release and the locking of latch segment.The adjustment of depth of cut is carried out by cutting-depth positioning device, simple to operate, convenient, fast, regulate efficiency high.
Accompanying drawing explanation
Fig. 1 is portable circular saw schematic perspective view of the present invention;
Fig. 2 is portable circular saw cutting-depth positioning device left front of the present invention exploded perspective view;
Fig. 3 is portable circular saw cutting-depth positioning device right front of the present invention exploded perspective view;
Fig. 4 acts on schematic diagram on described stop surface for locating surface described in portable circular saw cutting process of the present invention;
In figure, 1-housing, 2-main handle, 3-assist handle, 4-adjustment screw, 401-locating surface, 5-setscrew nut, 6-gearbox, 7-protective cover, 8-dial, 801-graduation mark, 802-toothed projections, 803-deep-slotted chip breaker, 9-positioning seat, 901-stop surface, 902-helicoid, the upper mark of 903-, mark under 904-, 905-installing hole, 10-release handle, 1001-handle, 1002-helicoid, 1003-installing hole, 11-attachment screw, 12-base, 13-rotating shaft, 14-switch, shell fragment under 15-, the upper shell fragment of 16-, 17-latch segment, 171-toothed projections, 18-locking nut, 19-saw blade.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As Figure 1-Figure 4, portable circular saw of the present invention, comprising: housing 1, and it is for holding motor; Gearbox 6, it is for holding gear, and one end of gear is connected with motor, and the other end of gear is connected with output shaft; Saw blade 19, it is connected with output shaft; Grip portions, it comprises main handle 2 and assist handle 3, main handle 2 is provided with motor switch 14; Base 12, its lower surface is arranged to slide on workpiece or guide rail; Protective cover 7, the upset of certain angle also can be carried out in its side being arranged on base 12 body to the side of base 12, protective cover 7 covers on saw blade 19; Linkwork; Gearbox 6 is connected with protective cover 7 by the rotating shaft 13 of linkwork, thus output shaft and saw blade 19 can respect thereto 12 or protective cover 7 be moved between parking place and cutting into position.
Protective cover 7 is provided with cutting-depth positioning device, and cutting-depth positioning device comprises:
Be fixedly installed in the dial 8 on protective cover 7, dial 8 for one cut with saw blade 19 time gearbox 6 processes the arc that parallels of path, this arc is one section of arc centered by rotating shaft 13; Dial 8 has the deep-slotted chip breaker 803 of a hollow, the both sides, inner side of deep-slotted chip breaker 803 is provided with two row's toothed projections 802 of arcuately groove trend, and dial 8 outer surface is provided with the graduation mark 801 of instruction saw blade depth of cut;
A positioning seat 9 is installed in the outside of dial 8, and positioning seat 9 is installed on dial 8 by installing hole 905, and can arcuately regulate mobile by groove 803; Positioning seat 9 has a stop surface 901, for locating the penetraction depth of saw blade, namely the non-lateral surface towards dial of positioning seat 9 is provided with helicoid 902 along installing hole end face.Positioning seat 9 is also provided with the upper mark 903 and lower mark 904 that point to graduation mark 801, corresponding saw blade 19 is at band guide rail and not with depth of cut during guide rail respectively.
A protruding locating surface 401 from gearbox 6, locating surface 401 is towards the stop surface 901 on positioning seat 9, when saw blade carries out incision action, locating surface 401 acts on the stop surface 901 on positioning seat 9, limited by the shift position of the 901 pairs of locating surfaces 401 in stop surface, thus limit the move distance of gearbox 6, namely can limit the depth of cut of saw blade 19.
In the present embodiment, locating surface 401 have employed the end face of adjustment screw 4, and adjustment screw 4 is spun on described gearbox 6, and adjustment screw 4 is also provided with setscrew nut 5 ordinatedly, for locating the position of adjustment screw 4.In other embodiments, locating surface 401 also can adopt other versions.
The lateral surface of positioning seat 9 installs a release handle 10, release handle 10 has one and be easy to the handle 1001 that staff grips adjustment, release handle 10 is also provided with the helicoid 1002 fitted with spiral binding face 902 on positioning seat 9, the helicoid 1002 i.e. end face of installing hole 1003.
Install a latch segment 17 in dial 8, latch segment 17 is arranged on inside the deep-slotted chip breaker 803 of dial 8, and the one side towards dial 8 is provided with the toothed projections 171 be meshed with the toothed projections 802 on dial 8, and latch segment 17 is engaged by tooth with dial 8.
The two ends of latch segment 17 are provided with lower shell fragment 15 and upper shell fragment 16, and lower shell fragment 15, upper shell fragment 16 act on dial 8, and form tooth with the tooth on dial and engage.Lower shell fragment 15 and on shell fragment 16 effect under toothed projections 171 on latch segment 17 can be separated with the toothed projections 802 on dial 8, and latch segment 17 arcuately groove 803 moving process have obvious scale shift feeling.
Installing hole 905 on positioning seat 9, the installing hole 1003 on release handle 10 are coaxial, attachment screw 11 through the through hole on the installing hole 1003 on release handle 10, the installing hole 905 on positioning seat 9, the deep-slotted chip breaker 803 on dial 8, latch segment 17, is connected with locking nut 18 successively.By attachment screw 11 and locking nut 18, release handle 10, positioning seat 9 and latch segment 17 are installed on dial 8, and are fitted by helicoid 1002,902 between release handle 10 and positioning seat 9.Because the binding face between release handle 10 and positioning seat 9 is helicoid 1002,902, when rotating release handle 10 by handle 1001, axial distance between release handle 10 and positioning seat 9 will change, axial distance or diminish or become large, thus realizes locking and the release of latch segment 17.Therefore, when carrying out depth of cut and regulating, locking nut 18 is not needed to be totally released, only need to rotate release handle 10, the axial distance between release handle 10 and positioning seat 9 is made to become large, thus realize the release of latch segment 17, and lower shell fragment 15 and upper shell fragment 16 ensure that being separated in time of latch segment 17 and dial 8, by positioning seat 9, after latch segment 17 is adjusted to suitable position, this suitable position is the position that by positioning seat 9, saw blade 19 can be positioned to suitable depth of cut, rotate release handle 10 round about again, axial distance between release handle 10 and positioning seat 9 is diminished, thus realize the locking of latch segment 17, the adjustment of depth of cut is carried out by cutting-depth positioning device of the present invention, simple to operate, convenient, fast, efficiency is high.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (7)
1. a portable circular saw, comprising:
Housing, it is for holding motor;
Gearbox, it is for holding gear, and one end of described gear is connected with described motor, and the other end of described gear is connected with output shaft;
Saw blade, it is connected with described output shaft;
Grip portions, it comprises main handle and assist handle, and described main handle is provided with motor switch;
Base, its lower surface is arranged to slide on workpiece or guide rail;
Protective cover, the upset of certain angle also can be carried out in its side being arranged on described base body to the side of described base, described protective cover can hold described saw blade;
Linkwork; Described gearbox is connected with described protective cover by the rotating shaft of linkwork, thus output shaft and saw blade can respect thereto or protective cover be moved between parking place and cutting into position;
It is characterized in that,
Also comprise a cutting-depth positioning device, described cutting-depth positioning device comprises:
Dial is an arc being fixedly installed on described protective cover; Arc has the deep-slotted chip breaker of a hollow, dial outer surface is provided with the graduation mark of instruction saw blade depth of cut;
Positioning seat, it is installed on the outside of described dial by installing hole, and can move along described deep-slotted chip breaker; Positioning seat having a stop surface, for locating the penetraction depth of saw blade, positioning seat being provided with helicoid along described installing hole end face;
Locating surface, it is from described gearbox outwardly directed, acts on the stop surface on described positioning seat when saw blade carries out incision action;
Release handle, it is installed on the outside of described positioning seat, it has and is easy to the handle that staff grips adjustment, which is provided with the helicoid fitted with helicoid on described positioning seat;
Latch segment, it is positioned at described dial and the different side of described positioning seat;
Attachment screw and locking nut, be installed to described release handle, positioning seat and latch segment on described dial by described attachment screw and locking nut.
2. portable circular saw according to claim 1, it is characterized in that, described locating surface is the end face of adjustment screw, and described adjustment screw is spun on described gearbox, described adjustment screw is also provided with setscrew nut ordinatedly, for locating the position of described adjustment screw.
3. portable circular saw according to claim 1, it is characterized in that, the deep-slotted chip breaker inner side end of described dial is provided with the tooth of arcuately groove trend, and described latch segment is provided with tooth towards the one side of dial, and described latch segment and described dial form tooth and engage.
4. the portable circular saw according to claim 1 or 3, it is characterized in that, also comprise two shell fragments acted between described latch segment and described dial, the two ends that two shell fragments are arranged on latch segment act on described dial, and form tooth with the tooth on described dial and engage.
5. portable circular saw according to claim 1, is characterized in that, described positioning seat is provided with the mark pointing to described graduation mark.
6. portable circular saw according to claim 5, is characterized in that, described positioning seat is labeled as two, respectively corresponding band guide rail and not with depth of cut during guide rail.
7. portable circular saw according to claim 1, is characterized in that, on described dial, the center of arc of deep-slotted chip breaker is positioned at the axle center of described rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410013152.5A CN103752943B (en) | 2013-09-25 | 2014-01-13 | A kind of portable circular saw |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443009.5 | 2013-09-25 | ||
| CN201310443009 | 2013-09-25 | ||
| CN201410013152.5A CN103752943B (en) | 2013-09-25 | 2014-01-13 | A kind of portable circular saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103752943A CN103752943A (en) | 2014-04-30 |
| CN103752943B true CN103752943B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410013152.5A Expired - Fee Related CN103752943B (en) | 2013-09-25 | 2014-01-13 | A kind of portable circular saw |
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| Country | Link |
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| CN (1) | CN103752943B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014224571A1 (en) * | 2014-12-02 | 2016-06-02 | Robert Bosch Gmbh | Cutting length indicator |
| CN104722837B (en) * | 2015-03-11 | 2017-04-05 | 江苏苏美达五金工具有限公司 | A kind of orbiting cutting tool |
| CN106180885B (en) * | 2015-05-08 | 2018-09-07 | 苏州宝时得电动工具有限公司 | Portable cutter |
| CN108237261B (en) * | 2016-12-27 | 2019-11-29 | 力山工业股份有限公司 | The operating angle fast-positioning device of circular sawing machine |
| CN108942682A (en) * | 2018-07-04 | 2018-12-07 | 佛山鑫达智汇科技有限公司 | A kind of metal cutter |
| CN110091438B (en) * | 2019-04-25 | 2024-03-29 | 锐奇控股股份有限公司 | Adjustable handle device and utilize its adjustable marble machine |
| DE102019208919A1 (en) * | 2019-06-19 | 2020-12-24 | Robert Bosch Gmbh | Sawing machine tool |
| CN110216328A (en) * | 2019-06-23 | 2019-09-10 | 杜方平 | A kind of portable dustless essence sanction saw |
| USD951051S1 (en) | 2020-01-02 | 2022-05-10 | Techtronic Cordless Gp | Circular saw |
Citations (10)
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|---|---|---|---|---|
| DE3541267A1 (en) * | 1985-11-22 | 1987-05-27 | Licentia Gmbh | Device for the zero setting of the cutting depth of the saw blade in portable circular saws driven by an electric motor |
| US5517763A (en) * | 1994-02-02 | 1996-05-21 | Robert Bosch Gmbh | Hand circular saw with swinging protective hood and miter angle adjusting device |
| DE19635527A1 (en) * | 1996-08-20 | 1998-02-26 | Black & Decker Inc | Hand-held circular saw |
| CN1496800A (en) * | 2002-10-22 | 2004-05-19 | 日立工机株式会社 | Portable electric cutting device with blower mechanism |
| CN101024289A (en) * | 2006-02-22 | 2007-08-29 | 日立工机株式会社 | Portable cutting device capable of adjusting cutting depth |
| CN201205617Y (en) * | 2008-05-30 | 2009-03-11 | 吴宁 | Portable electric circular saw with controllable cutting deepness |
| EP2070623A1 (en) * | 2007-12-11 | 2009-06-17 | Mafell AG | Machining unit |
| CN201644918U (en) * | 2010-01-04 | 2010-11-24 | 泉峰(中国)贸易有限公司 | Electric power tool |
| CN102114555A (en) * | 2010-01-04 | 2011-07-06 | 泉峰(中国)贸易有限公司 | Electric tool |
| CN202398893U (en) * | 2011-12-31 | 2012-08-29 | 南京德朔实业有限公司 | Depth positioning mechanism suitable for electric tools |
-
2014
- 2014-01-13 CN CN201410013152.5A patent/CN103752943B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3541267A1 (en) * | 1985-11-22 | 1987-05-27 | Licentia Gmbh | Device for the zero setting of the cutting depth of the saw blade in portable circular saws driven by an electric motor |
| US5517763A (en) * | 1994-02-02 | 1996-05-21 | Robert Bosch Gmbh | Hand circular saw with swinging protective hood and miter angle adjusting device |
| DE19635527A1 (en) * | 1996-08-20 | 1998-02-26 | Black & Decker Inc | Hand-held circular saw |
| CN1496800A (en) * | 2002-10-22 | 2004-05-19 | 日立工机株式会社 | Portable electric cutting device with blower mechanism |
| CN101024289A (en) * | 2006-02-22 | 2007-08-29 | 日立工机株式会社 | Portable cutting device capable of adjusting cutting depth |
| EP2070623A1 (en) * | 2007-12-11 | 2009-06-17 | Mafell AG | Machining unit |
| CN201205617Y (en) * | 2008-05-30 | 2009-03-11 | 吴宁 | Portable electric circular saw with controllable cutting deepness |
| CN201644918U (en) * | 2010-01-04 | 2010-11-24 | 泉峰(中国)贸易有限公司 | Electric power tool |
| CN102114555A (en) * | 2010-01-04 | 2011-07-06 | 泉峰(中国)贸易有限公司 | Electric tool |
| CN202398893U (en) * | 2011-12-31 | 2012-08-29 | 南京德朔实业有限公司 | Depth positioning mechanism suitable for electric tools |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103752943A (en) | 2014-04-30 |
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