CN201179573Y - Portable electric circular saw - Google Patents
Portable electric circular saw Download PDFInfo
- Publication number
- CN201179573Y CN201179573Y CNU2008200841401U CN200820084140U CN201179573Y CN 201179573 Y CN201179573 Y CN 201179573Y CN U2008200841401 U CNU2008200841401 U CN U2008200841401U CN 200820084140 U CN200820084140 U CN 200820084140U CN 201179573 Y CN201179573 Y CN 201179573Y
- Authority
- CN
- China
- Prior art keywords
- saw
- movable protective
- portable electric
- casing
- cicular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001681 protective effect Effects 0.000 claims abstract description 35
- 239000004568 cement Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The utility model discloses a portable electric circular saw, comprising a machine shell, a motor, a saw blade and a movable protective cover movably connected to the machine shell. The machine shell is provided with a bedplate capable of adjusting angles relative to the saw blade. The bedplate is fixed with an angle ruler and a jig thereof. The machine shell is also provided with a spring cushioning device at a closing position of the movable protective cover. With the structure, the spring cushioning device can avoid damages to the circular saw caused by the collision of the movable protective cover and the circular saw, and protect the drive of the movable protective cover. Even if the movable protective cover does not collide with the circular saw, the spring cushioning device still can reduce the influence caused by the impact force generated by the rapid closing of the movable protective cover.
Description
Technical field
The utility model relates to a kind of electric tool, relates in particular to a kind of Portable electric cicular saw.
Background technology
Portable electric cicular saw is a kind of electric tool commonly used, generally is used for material cutting aspect.Through accumulation for many years, the Portable electric cicular saw of being sold on the market has been quite ripe product now.As announcing March 8 nineteen ninety-five, publication number comprises that with regard to the technical scheme that has proposed a kind of Portable electric cicular saw movable protective shield and control cuts the length of sawn timber material, the degree of depth and angle for the utility model " Portable electric cicular saw " of " CN 2191073Y ".Whether but bevel protractor and jig all are with the bolt of marking closely on bolting, the especially bevel protractor of marking closely in this patent, in use can not obviously find out and tighten, under the effect of gravity, cause a deviation easily, influence the cut quality of electric circular saw.And the not protection of jig the place ahead bumps against material to be cut easily, causes the jig bending, influences cut quality.In the national standard of electric circular saw movable protective shield also there is requirement now, promptly closes automatically in 0.2 second after stopping using, avoid sharp saw blade to scratch.Just because of this, the closing velocity of movable protective shield is very fast, closed back easily and casing bump, Peng Zhuan reaction force might influence the driving of movable protective shield like this, thereby has reduced the service life of electric circular saw.
The utility model content
The purpose of this utility model provides a kind of Portable electric cicular saw; can in use adjust cutting angle easily, and definite angle can not produce deviation, simultaneously jig be protected; closure to movable protective shield cushions, and has prolonged the service life of whole annular saw.
In order to reach described purpose; Portable electric cicular saw; comprise casing, motor, saw blade and and the movable protective shield that flexibly connects of casing; the base plate that can adjust angle with respect to saw blade is housed on the casing; be fixed with bevel protractor and jig thereof on the base plate, corresponding movable protective shield closed position also is provided with the resilience buffer unit on the described casing.
Preferably, described resilience buffer unit is formed for the plastic cement shim pack.Generally described plastic cement shim pack shape and movable protective shield outer shape coupling.Such structure can be protected the driving of movable protective shield.
Preferably, described resilience buffer unit is the spring buffer structure, and described spring buffer structure comprises the spring dead plate that is fixed on the casing inboard, is fixed with spring on the described spring dead plate, and the described spring other end is connected with the damp impacts piece.When movable protective shield was closed, spring protection structure cushioned movable protective shield.
Preferably, also be provided with the angle spanner on the described bevel protractor.The angle spanner not only can make things convenient for the adjusting of bevel protractor, and can guarantee that the angle position that regulates fixes, can be owing to not tightening the deviation that causes on the angle.
Preferably, described jig front end also is provided with the jig ceiling.Can measure more accurately, when jig collides other article accidentally, play the certain protection effect.
Owing to adopted described structure, corresponding movable protective shield closed position also is provided with the resilience buffer unit on the utility model casing, and this device can avoid the collision of movable protective shield and annular saw to cause annular saw to damage, and the driving of movable protective shield is protected.Even movable protective shield and annular saw be collision not, the resilience buffer unit still can slow down the influence that the impulse force of movable protective shield quick-make brings.
Description of drawings
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is the utility model Portable electric cicular saw schematic diagram.
Fig. 2 is the utility model Portable electric cicular saw embodiment 1 resilience buffer unit schematic diagram.
Fig. 3 is the utility model Portable electric cicular saw embodiment 2 resilience buffer unit schematic diagrames.
Fig. 4 is the A place internal structure schematic diagram of Fig. 3.
The specific embodiment
Portable electric cicular saw as shown in Figure 1; comprise casing 1, motor 2, saw blade 3 and and the movable protective shield 4 that flexibly connects of casing; the base plate 5 that can adjust angle with respect to saw blade 3 is housed on the casing 1; base plate 5 is provided with bevel protractor 51 and jig 52 thereof, it is characterized in that corresponding movable protective shield 4 closed position also are provided with resilience buffer unit 6 on the described casing 1.Also be provided with angle spanner 511 on the described bevel protractor 51.Angle spanner 511 has two effects, and one is to make things convenient for adjusting angle chi 51 because in the prior art all usefulness be that fastening bolt is fixed, the arm of force is little when twisting, and is difficult to the power of using; Also have one can guarantee bevel protractor 51 adjustings finishing back fixing compact exactly, because the fixing back of fastening bolt from be difficult in appearance find out whether fix tight, when sometimes joining annular saw in operation, tightly just do not operate if fix, gently then make mismachining tolerance become big, heavy then can hurt the operator, cause the accident.And behind the use angle spanner 511, only need turn to closed position at last, and just can guarantee bevel protractor 51 fixing compacts, can not become flexible, the operator also comes into plain view in use.
In addition, described jig 52 front ends also are provided with jig ceiling 521.Described jig ceiling 521 is the bonding jumpers that are parallel to jig 52.Can withstand measured material at ordinary times, make that the more accurate machining accuracy of measurement of jig 52 is higher.And when jig 52 was met other objects, jig ceiling 521 also can play a cushioning effect, avoided jig 52 to be subjected to external force and deformed.
Be illustrated in figure 2 as the utility model embodiment 1, described resilience buffer unit 6 is that plastic cement shim pack 61 is formed, described plastic cement shim pack 61 shapes and movable protective shield 4 outer shape coupling.Because between casing 1 and the movable protective shield 4 some slits are arranged, can fill space between casing 1 and the movable protective shield 4 first by plastic cement shim pack 61, make annular saw more attractive in appearance.In 0.2 second after motor 2 quits work, movable protective shield 5 auto-closings are used to protect saw blade 3.At this moment, such structure is avoided moment and casing 1 collision of movable protective shield 4 in closure, has prolonged the service life of annular saw relatively.
Be the utility model embodiment 2 as shown in Figure 3, Figure 4, described resilience buffer unit 6 is a spring buffer structure 62, described spring buffer structure 62 comprises the spring dead plate 621 that is fixed on casing 1 inboard, be fixed with spring 622 on the described spring dead plate 621, described spring 622 other ends are connected with damp impacts piece 623.In 0.2 second after motor 2 quits work, movable protective shield 5 auto-closings are used to protect saw blade 3.At this moment, such structure is avoided moment and casing 1 collision of movable protective shield 4 in closure.Even without collision, still can give 5 one cushion effects of movable protective shield, can effectively protect the drive unit of movable protective shield 5.Compare embodiment 1, resilience buffer unit 6 buffer distances are big like this, and buffering effect is better, but the structure relative complex.
Claims (5)
1, Portable electric cicular saw; comprise casing (1), motor (2), saw blade (3) and and the movable protective shield (4) that flexibly connects of casing (1); the base plate (5) that can adjust angle with respect to saw blade (3) is housed on the casing (1); be fixed with bevel protractor (51) and jig (52) thereof on the base plate (5), it is characterized in that last corresponding movable protective shield (4) closed position of described casing (1) also is provided with resilience buffer unit (6).
2, Portable electric cicular saw as claimed in claim 1 is characterized in that: described resilience buffer unit (6) is formed for plastic cement shim pack (61).
3, Portable electric cicular saw as claimed in claim 1, it is characterized in that: described resilience buffer unit (6) is spring buffer structure (62), described spring buffer structure (62) comprises the spring dead plate (621) that is fixed on casing (1) inboard, be fixed with spring (622) on the described spring dead plate (621), described spring (622) other end is connected with damp impacts piece (623).
4, Portable electric cicular saw as claimed in claim 1 is characterized in that: also be provided with angle spanner (511) on the described bevel protractor (51).
5, Portable electric cicular saw as claimed in claim 1 is characterized in that: described jig (52) front end also is provided with jig ceiling (521).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200841401U CN201179573Y (en) | 2008-03-21 | 2008-03-21 | Portable electric circular saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200841401U CN201179573Y (en) | 2008-03-21 | 2008-03-21 | Portable electric circular saw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201179573Y true CN201179573Y (en) | 2009-01-14 |
Family
ID=40249077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200841401U Expired - Fee Related CN201179573Y (en) | 2008-03-21 | 2008-03-21 | Portable electric circular saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201179573Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025595A1 (en) * | 2008-09-05 | 2010-03-11 | Robert Bosch Gmbh | Protective device |
| WO2011026302A1 (en) * | 2009-09-07 | 2011-03-10 | 宁波捷美进出口有限公司 | Hand-hold circular saw casing mechanism |
| CN103219832A (en) * | 2013-04-01 | 2013-07-24 | 常州格力博有限公司 | Brushless electric circular saw |
-
2008
- 2008-03-21 CN CNU2008200841401U patent/CN201179573Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010025595A1 (en) * | 2008-09-05 | 2010-03-11 | Robert Bosch Gmbh | Protective device |
| WO2011026302A1 (en) * | 2009-09-07 | 2011-03-10 | 宁波捷美进出口有限公司 | Hand-hold circular saw casing mechanism |
| CN103219832A (en) * | 2013-04-01 | 2013-07-24 | 常州格力博有限公司 | Brushless electric circular saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Jinpan Electromechanical Industry Co., Ltd. Assignor: Zhang Yaosi Contract fulfillment period: 2009.1.15 to 2014.1.30 Contract record no.: 2009330000601 Denomination of utility model: Electric hand ring saw Granted publication date: 20090114 License type: Exclusive license Record date: 20090410 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.15 TO 2014.1.30; CHANGE OF CONTRACT Name of requester: ZHEJIANG PROV JINPAN ELECTROMECHANICAL INDUSTRY CO Effective date: 20090410 |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG JINPAN ELECTROMECHANICAL INDUSTRY CO., LT Free format text: FORMER OWNER: ZHANG ZHANGSI Effective date: 20110330 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110330 Address after: 321025 Zhejiang province Jinhua LongQian Street No. 1158 Patentee after: Zhejiang Jinpan Electromechanical Industry Co., Ltd. Address before: 321025 Zhejiang province Jinhua LongQian Street No. 1158 Patentee before: Zhang Yaosi |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20140321 |