CN100443227C - Severing machine - Google Patents
Severing machine Download PDFInfo
- Publication number
- CN100443227C CN100443227C CNB2006101031178A CN200610103117A CN100443227C CN 100443227 C CN100443227 C CN 100443227C CN B2006101031178 A CNB2006101031178 A CN B2006101031178A CN 200610103117 A CN200610103117 A CN 200610103117A CN 100443227 C CN100443227 C CN 100443227C
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- mentioned
- safety guard
- elongated slot
- connecting elements
- axis body
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Abstract
The present invention provides generation etc. of sound when eliminating safety guard switch and maintains the cutting machine of comfortable use feeling and commodity value. The connecting plate (15) being set up between arm and safety guard carries out axis assembly as follows: in safety guard side, loose fit insertion encapsulates the shoulder screw (17) of sleeve (19) and washer (20) on the elongated slot (18) for being set to connecting plate (15) end side, and is spirally connected with the connecting piece of safety guard (21). The width (W) of elongated slot (18) is formed with the also big size of diameter than sleeve (19), even if so that there is a situation where so that connecting plate (15) deformation is can also ensure that the sliding of shoulder screw (17) because of external force. Wherein the end of the engaging side of the shoulder screw (17) in elongated slot (18) from close to terminal and tapered portion (22) that width becomes narrow gradually and continuously in the tapered portion (22) and the terminal part (23) of the arc-shaped of chimeric sleeve (19) is formed.
Description
Technical field
The present invention relates to cutter or bench circular sawing machine etc., be arranged at mounting in setting and be cut off the cutting machine that can be provided with the main body of the cutting knife that possesses the driving of being rotated on the arm on the base of part up or down.
Background technology
For example in bench circular sawing machine, possesses the main body that is rotated the discoid sawtooth (cutting knife) of driving by motor on the outstanding arm that is provided with in the rear of base, being provided with the state that can move up and down by fulcrum and load to top dead-centre by load maintainer, descend by operating main body, can cut off the part that is cut off that is positioned on the base.In addition, " top dead-centre " is meant the upper limit position that the main body of not carrying out step-down operation stops, and back described " bottom dead centre " is meant and carries out the lower position that the main body after the step-down operation stops.
And main body has: the sawtooth chamber, and it is reserved the operation opening portion and partly covers sawtooth; Safety guard, it rotatably is assemblied in this sawtooth chamber, and loads towards the position rotation of the operation opening portion that covers sawtooth under normal conditions.Between the eccentric position and arm at the spinning center of this safety guard, set up connecting elements, when main body was descended, connecting elements loaded the expose direction rotation of safety guard to sawtooth, and safety guard is fallen back on does not influence the position (for example with reference to patent documentation 1) that cuts off operation.
Syndeton as this connecting elements and safety guard, often use following structure: the axis body that will be provided with on safety guard (pin or screw etc.) loose fit is inserted in the elongated slot that is arranged on the connecting elements, top dead-centre and bottom dead centre place in main body make axis body engage with the end of elongated slot, thereby the connecting elements that rotatablely moves upward along with moving up and down of main body can apply revolving force to safety guard through axis body.Under the situation of this structure owing to allow the slip of the axis body in elongated slot at the top dead center of main body, so can be only rotary manipulation safety guard separately, and can carry out in the replacing of the sawtooth of top dead-centre etc.
No. 3431403 communique of patent documentation 1:JP patent.
In above-mentioned bench circular sawing machine, when connecting elements is out of shape because of external force, axis body can not be slided in elongated slot, and the independent rotation of safety guard is produced obstacle.Therefore, consider the width of elongated slot is made and the diameter ratio of axis body size more than needed in addition, thereby even the connecting elements distortion also can be guaranteed the independent rotation of safety guard.Yet, therefore also between safety guard and connecting elements, produces at the top dead-centre of main body and bottom dead centre and rock, to sound during use, perhaps connecting elements vibration to worker's discomfort, and then causes the decline of commodity value.
Summary of the invention
Therefore, the object of the present invention is to provide a kind of cutting machine, it is no matter whether connecting elements is out of shape the independent rotation that can both guarantee safety guard, also can eliminate simultaneously the sound that causes by rocking generation etc., can keep comfortable usability and commodity value.
In order to reach above-mentioned purpose, cutting machine of the present invention, be arranged at the arm that loads on the base be cut off part in setting can move up and down and be provided with the main body of the cutting knife that possesses the driving of being rotated to the state that top dead-centre loads, on aforementioned body, be provided with: the sawtooth chamber, it is reserved the operation opening portion and partly covers above-mentioned cutting knife; Safety guard, it can be assemblied in this sawtooth chamber rotatably, and cover the operation opening portion of above-mentioned cutting knife, on the other hand, between above-mentioned arm and safety guard, set up connecting elements, this connecting elements is by applying revolving force to above-mentioned safety guard along the direction of exposing the operation opening portion of above-mentioned cutting knife with the rotatablely moving of decline interlock of aforementioned body, above-mentioned connecting elements and safety guard are by the axis body that is arranged on the above-mentioned safety guard, be connected with the elongated slot that forms with the width bigger in the end of above-mentioned connecting elements and above-mentioned axis body is inserted in loose fit than the diameter of above-mentioned axis body, by engaging of above-mentioned axis body and above-mentioned elongated slot end, can apply revolving force from above-mentioned connecting elements, it is characterized in that the engaging side of the axis body in the elongated slot of connecting elements is by along with near terminal and tapered portion that width narrows down gradually, with continuously in this tapered portion and the terminal part of chimeric axis body forms.
Cutting machine of the present invention, on above-mentioned basis, for axis body is moved smoothly relative to the terminal part of elongated slot, the tapered portion of roughly 1/3rd the length setting elongated slot of the range of in elongated slot, sliding with axis body when the top dead-centre that makes safety guard in main body rotates separately.
According to the invention described above,, also can eliminate the generation of the sound that causes by rocking at top dead-centre and bottom dead centre etc. simultaneously no matter whether connecting elements is out of shape the independent rotation that can both guarantee safety guard because of external force.Therefore, can obtain comfortable usability and keep commodity value.
According to the invention described above, on above-mentioned effect, axis body can move when the terminal part of elongated slot is come in and gone out swimmingly.
Cutting machine of the present invention, can move up and down and be provided with the main body of the cutting knife that possesses the driving of being rotated to the state that top dead-centre loads, wherein, this arm is erect to be arranged to load and is cut off on the base of part at arm; On aforementioned body, be provided with: the sawtooth chamber, it is reserved the operation opening portion and partly covers above-mentioned cutting knife, safety guard, it can be assemblied in this sawtooth chamber rotatably, and cover the operation opening portion of above-mentioned cutting knife, on the other hand, set up connecting elements between above-mentioned arm and safety guard, this connecting elements is by applying revolving force to above-mentioned safety guard along the direction of exposing the operation opening portion of above-mentioned cutting knife with the rotatablely moving of decline interlock of aforementioned body; Above-mentioned connecting elements and safety guard are by the axis body that is arranged on the above-mentioned safety guard, be connected with the elongated slot that forms with the width bigger in the end of above-mentioned connecting elements and above-mentioned axis body is inserted in loose fit than the diameter of above-mentioned axis body, by engaging of above-mentioned axis body and above-mentioned elongated slot end, can apply revolving force from above-mentioned connecting elements, it is characterized in that, the engaging side of the above-mentioned axis body in the elongated slot of above-mentioned connecting elements is by along with near terminal and tapered portion that width narrows down gradually and forming in the terminal part of this tapered portion and chimeric above-mentioned axis body continuously; The tapered portion of 1/3rd length setting elongated slot of the range of in above-mentioned elongated slot, sliding with axis body when the top dead-centre that makes safety guard in main body rotates separately.
Description of drawings
Fig. 1 is the key diagram (main body is at top dead-centre) of the bench circular sawing machine seen from the side.
Fig. 2 A is the enlarged drawing of the fore-end of connecting plate; Fig. 2 B analyses and observe key diagram for it.
Fig. 3 is the key diagram (main body is at bottom dead centre) of the bench circular sawing machine seen from the side.
Fig. 4 is the key diagram (main body is at top dead-centre, and only safety guard is in open state) of the bench circular sawing machine seen from the side.
The specific embodiment
Below, based on accompanying drawing embodiments of the present invention are described.
The key diagram as the bench circular sawing machine of an example of cutting machine of Fig. 1 for seeing from the side, bench circular sawing machine 1 can be provided with rotating disk 3 in the substantial middle portion of base 2 with horizontally rotating, be provided with arm 4 in the setting of the rear (left side of figure) of this rotating disk 3, on the middle part of arm 4, can move up and down the earth's axis by fulcrum 5 and assemble main body 6.The upper dead center position of the torsion spring 7 towards Fig. 1 of main body 6 by being arranged at fulcrum 5 parts loads.8 is the guiding grid (guide fence) that set up at base 2 upper edge left and right directions in the mode that passes across on the rotating disk 3, and 9 for being used for the action bars of rotary manipulation rotating disk 3.
On the other hand, at the central portion of safety guard 13, between the front end of the eccentric position of axle 14 forward slightly tops and arm 4, set up link plate 15 certainly as connecting elements.This link plate 15 for extend upward earlier from the front of arm 4, forwards side bends to two sections banded plate body again, respectively the pin 16 by arm 4 one sides, safety guard 13 1 sides as the shoulder screw 17 of axis body and the axle assembling.The particularly axle assembling of safety guard 13 1 sides as shown in Figure 2, is such structure: make outer enclosure shoulder screw 17 loose fits of sleeve 19 be inserted in the elongated slot 18 that the end side of link plate 15 is provided with, and be spirally connected with the binding sheet 21 of safety guard 13.20 prevent to come off the packing ring of usefulness for link plate 15.And, make the width W of elongated slot 18 form the size also bigger, so that in the slip that shoulder screw 17 takes place also can guarantee under the situation that link plate 15 is out of shape because of external force than the diameter of sleeve 19.
Yet, the end of the front of the link plate 15 of elongated slot 18 by along with to terminal near and the tapered portion 22 of narrowed width and forming in this tapered portion 22 and with the chimeric circular-arc terminal part 23 of sleeve 19 continuously.The terminal part 23 that shoulder screw 17 is positioned at elongated slot 18 at the top dead-centre and the bottom dead centre place of main body 6.
In the bench circular sawing machine 1 that as above constitutes, when controlling handle 12 from the top dead-centre of Fig. 1 when pressing main body 6, main body 6 is that the center rotates downwards with fulcrum 5.At this moment, because the axle rigging position of arm 4 sides of link plate 15 is set in the back upper place of leaning on as the fulcrum 5 of the pivot of main body 6, the axle rigging position of safety guard 13 sides is set in the forward top as the axle 14 of the pivot of safety guard 13, so shoulder screw 17 rearward shunk back when rotating with main body 6 downwards.So be that below left-handed then that expose sawtooth 11 is carried out at the center because safety guard 13 opposing rotation loads with axle 14, so on the rotating disk 3 mounting be cut off sawtooth 11 cut-outs that part can have been exposed.When main body 6 arrives after bottom dead center, as shown in Figure 3, safety guard 13 roughly fully exposes the latter half of sawtooth 11.Process from top dead-centre to bottom dead centre, the shoulder screw 17 of safety guard 13 always is positioned at terminal part 23 places of the elongated slot 18 of link plate 15, but because the terminal part 23 of sleeve 19 and elongated slot 18 is a chimerism, so can not produce the situation of rocking between shoulder screw 17 and the link plate 15.
After cutting off the end of job, when removing the pressing of main body 6, main body 6 is rotated upward by the loading of the torsion spring 7 of fulcrum 5, and also rotation upward of connecting plate 15 meanwhile resets into top dead-centre with motion track opposite when descending.In view of the above, safety guard 13 also carries out right rotation by the loading of torsion spring, up to the position that resets into Fig. 1.
Then, change at needs under the situation of sawtooth 11 grades, as shown in Figure 4,, sawtooth 11 is at random exposed as long as safety guard 13 opposing rotations are loaded and rotate at the top dead-centre of main body 6.At this moment, shoulder screw 17 is that anticlockwise is carried out at the center with axle 14, retreats along elongated slot 18 when from the terminal part 23 of the elongated slot 18 of link plate 15 link plate 15 being pushed away upward.At this, because the width W of elongated slot 18 is compared with the sleeve 19 of shoulder screw 17 and also will be had more than neededly, therefore, even link plate 15 is out of shape slightly because of external force, shoulder screw 17 can not have obstacle ground to slide in elongated slot 18 yet, and safety guard 13 is rotated separately swimmingly.
Like this, bench circular sawing machine 1 according to aforesaid way, by use along with to terminal near and tapered portion 22 that width narrows down gradually and the engaging side that forms the shoulder screw 17 in the elongated slot 18 of link plate 15 continuously in the terminal part 23 of this tapered portion 22 and chimeric shoulder screw 17, thereby no matter whether be out of shape because of external force causes link plate 15, can both guarantee the independent rotation of safety guard 13, eliminate simultaneously at top dead-centre and bottom dead centre because of rocking generation that causes sound etc.Therefore, comfortable usability can be obtained, commodity value can be kept.
In addition, about 1/3rd of the range of preferably sliding with axis body (shoulder screw) when safety guard rotates separately in the tapered portion of elongated slot setting length setting.When setting for this, axis body can move when the terminal part of elongated slot is come in and gone out swimmingly.
And, in aforesaid way, the tapered portion that tilts for the dual-side of elongated slot is common, but only also can be the tapered portion that the side by either side tilts width is narrowed down gradually.In the case, even the width of elongated slot is broadened also can be prevented the effect identical with aforesaid way rocking of top dead-centre and bottom dead centre etc.
And then axis body also is not limited only to the structure of the outer enclosure sleeve as above-mentioned form, though the axis body that makes shoulder screw or connecting rod etc. directly and elongated slot state of contact lower slider also harmless.
On the other hand, connecting elements is not limited in tabular as above-mentioned mode, even the other forms of member of the shaft-like grade of for example long chi, as long as and the shaft-assembling structure that is connected to elongated slot and axis body of safety guard, can similarly form tapered portion and terminal part with aforesaid way.
In addition, the present invention is not limited in bench circular sawing machine, also can be used for other cutting machine of cutter and multi-functional compound (flipover) saw etc.
Claims (1)
1. cutting machine, can move up and down and be provided with the main body of the cutting knife that possesses the driving of being rotated to the state that top dead-centre loads, wherein, this arm is erect to be arranged to load and is cut off on the base of part at arm; On aforementioned body, be provided with: the sawtooth chamber, it is reserved the operation opening portion and partly covers above-mentioned cutting knife, safety guard, it can be assemblied in this sawtooth chamber rotatably, and cover the operation opening portion of above-mentioned cutting knife, on the other hand, set up connecting elements between above-mentioned arm and safety guard, this connecting elements is by applying revolving force to above-mentioned safety guard along the direction of exposing the operation opening portion of above-mentioned cutting knife with the rotatablely moving of decline interlock of aforementioned body; Above-mentioned connecting elements and safety guard are by the axis body that is arranged on the above-mentioned safety guard, be connected with the elongated slot that forms with the width bigger in the end of above-mentioned connecting elements and above-mentioned axis body is inserted in loose fit than the diameter of above-mentioned axis body, by engaging of above-mentioned axis body and above-mentioned elongated slot end, can apply revolving force from above-mentioned connecting elements, it is characterized in that
The engaging side of the above-mentioned axis body in the elongated slot of above-mentioned connecting elements is by along with near terminal and tapered portion that width narrows down gradually and forming in the terminal part of this tapered portion and chimeric above-mentioned axis body continuously;
The tapered portion of 1/3rd length setting elongated slot of the range of in above-mentioned elongated slot, sliding with axis body when the top dead-centre that makes safety guard in main body rotates separately.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005270841 | 2005-09-16 | ||
| JP2005270841A JP4555198B2 (en) | 2005-09-16 | 2005-09-16 | Cutting machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1931489A CN1931489A (en) | 2007-03-21 |
| CN100443227C true CN100443227C (en) | 2008-12-17 |
Family
ID=37877589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101031178A Expired - Fee Related CN100443227C (en) | 2005-09-16 | 2006-07-04 | Severing machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4555198B2 (en) |
| CN (1) | CN100443227C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5221186B2 (en) * | 2008-04-01 | 2013-06-26 | 株式会社マキタ | Cutting machine |
| JP2010052544A (en) * | 2008-08-27 | 2010-03-11 | Mitsubishi Heavy Ind Ltd | Blower of on-vehicle refrigerating and air-conditioning unit |
| CN202411535U (en) | 2011-12-19 | 2012-09-05 | 上海锐奇工具股份有限公司 | Cutting saw with safety protection device |
| KR101522826B1 (en) * | 2014-12-24 | 2015-05-27 | 최이구 | Cutting apparatus including secondary safety cover |
| CN208195813U (en) * | 2015-02-25 | 2018-12-07 | 米沃奇电动工具公司 | Mitre saw |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203245A (en) * | 1991-12-20 | 1993-04-20 | Emerson Electric Co. | Swinging blade guard assembly |
| CN2242752Y (en) * | 1995-12-14 | 1996-12-18 | 墩丰机械工业股份有限公司 | Opening-closing device for protection cover of cutting machine |
| CN2347729Y (en) * | 1998-07-15 | 1999-11-10 | 张经金 | Safety device for circular saw blade protecting cover of circular sawing machine |
| CN2535174Y (en) * | 2002-01-31 | 2003-02-12 | 胡桂强 | Electric cutting machine |
| CN2541149Y (en) * | 2002-05-08 | 2003-03-26 | 錩泰工业股份有限公司 | Spiral coverplate retaining structure of circular sawing machine |
| CN1494979A (en) * | 2002-06-19 | 2004-05-12 | 德尔塔国际机械公司 | Cutter with optical alignment system |
| CN2631679Y (en) * | 2003-06-30 | 2004-08-11 | 苏州宝时得电动工具有限公司 | Movable cover rapid-opening mechanism of shearing saw |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2717534B2 (en) * | 1986-12-29 | 1998-02-18 | 株式会社マキタ | Safety cover device for circular saw machine |
| JPS6471618A (en) * | 1987-09-12 | 1989-03-16 | Motoyuki Kk | Opening and closing type cutting machine |
| JP2004092873A (en) * | 2002-09-04 | 2004-03-25 | Nifco Inc | Connecting structure for tube body |
| JP2005199613A (en) * | 2004-01-16 | 2005-07-28 | Hitachi Koki Co Ltd | Bench cutter |
| JP4455099B2 (en) * | 2004-02-27 | 2010-04-21 | キヤノン株式会社 | Image forming apparatus |
-
2005
- 2005-09-16 JP JP2005270841A patent/JP4555198B2/en not_active Expired - Fee Related
-
2006
- 2006-07-04 CN CNB2006101031178A patent/CN100443227C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203245A (en) * | 1991-12-20 | 1993-04-20 | Emerson Electric Co. | Swinging blade guard assembly |
| CN2242752Y (en) * | 1995-12-14 | 1996-12-18 | 墩丰机械工业股份有限公司 | Opening-closing device for protection cover of cutting machine |
| CN2347729Y (en) * | 1998-07-15 | 1999-11-10 | 张经金 | Safety device for circular saw blade protecting cover of circular sawing machine |
| CN2535174Y (en) * | 2002-01-31 | 2003-02-12 | 胡桂强 | Electric cutting machine |
| CN2541149Y (en) * | 2002-05-08 | 2003-03-26 | 錩泰工业股份有限公司 | Spiral coverplate retaining structure of circular sawing machine |
| CN1494979A (en) * | 2002-06-19 | 2004-05-12 | 德尔塔国际机械公司 | Cutter with optical alignment system |
| CN2631679Y (en) * | 2003-06-30 | 2004-08-11 | 苏州宝时得电动工具有限公司 | Movable cover rapid-opening mechanism of shearing saw |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1931489A (en) | 2007-03-21 |
| JP4555198B2 (en) | 2010-09-29 |
| JP2007075981A (en) | 2007-03-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20130704 |