CN202271033U - Saw blade group and circular sawing machine including same - Google Patents
Saw blade group and circular sawing machine including same Download PDFInfo
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- CN202271033U CN202271033U CN2011203858266U CN201120385826U CN202271033U CN 202271033 U CN202271033 U CN 202271033U CN 2011203858266 U CN2011203858266 U CN 2011203858266U CN 201120385826 U CN201120385826 U CN 201120385826U CN 202271033 U CN202271033 U CN 202271033U
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- limiting sheet
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Abstract
The utility model provides a saw blade group which is simple and reliable in structure and low in cost and a circular sawing machine including the same. The saw blade group comprises a pair of circular saw webs, wherein each saw web is provided with a saw web body and a cutting element disposed on the periphery of the saw web body. A center hole is disposed on the saw web body, and the cutting element is hard metal sawteeth or a segment of a curve covered with carborundum. The two saw webs are matched with each other and coaxially rotate towards the opposite direction, and during rotation, the two saw webs are matched with each other and approach to each other in mutually parallel mode. At least one axial limit piece is further disposed between the two saw webs. Neither of the saw webs is connected with the axial limit piece, the outer diameter of the axial limit piece is 0.5 to 0.95 times that of each saw web, and the axial limit piece is used for avoiding collision of the two saw webs during rotation. The center hole of the axial limit piece and the center hole of the saw web with the smaller center hole diameter have the equal inscribed circle diameter. The axial limit piece and the saw web with the smaller center hole diameter can be fixed simultaneously by an output shaft flange in the circular sawing machine in centering mode.
Description
Technical field
The utility model relates to a kind of saw blades groups and contains the circular sawing machine of saw blades groups, is applicable to the hard object of cutting knot, for example is used to cut wood or metal, and circular sawing machine is a power driven cutter, relates in particular to the saw blades groups of a kind of pair of saw blade and contains the circular sawing machine of saw blades groups.First saw blade in the saw blades groups suits on first direction, to rotate around a rotation, and second saw blade suits on the second direction opposite with first direction, to rotate around same rotation, and two saw blades are suitable approaching parallel to each other when rotated.
Background technology
Can know following technical scheme from Chinese patent CN 1283435C: at the interval facility that is provided with between two saw blades that cooperatively interact on the blade bodies that is linked at least one saw blade, to prevent that bump each other takes place between the cutting element.Escapement or by wherein constituting with the cutting element that radially extends on the individual saw blade; These cutting elements are interactive on the blade bodies of opposed second saw blade; Or escapement is to be made up of the interval gasket ring or the face coat that are positioned on arbitrary saw blade; Equally, this device also is provided on the blade bodies of opposed saw blade and slides.
Escapement adopts the shortcoming of the scheme of extending cutting element to be: the grinding to cutting element can bring problem.The shortcoming of another kind of escapement is: there is the trend that decline was lost efficacy or worn and torn fast in the course of work, the high temperature that produces in the sawing process is this trend of aggravation further.
In addition, can know following technical scheme from one Chinese patent application CN 101557911A: a kind of paired saw blade, it comprises first saw blade and second saw blade, two saw blades are configured to rotate in the opposite direction earlier around common rotational axis.Each saw blade all has blade bodies and the ring overhang that cutting element has formed from said front side or dorsal part stretches out in week separately.Said front side or said dorsal part have on the oncus of circumference interactive, and wherein oncus is made into to be integral with corresponding blade bodies, and has played the effect of escapement, and the cutting element of overhang clashes in the saw blade rotation process each other to prevent to have separately.
Adopt oncus to be made into to be integral with corresponding blade bodies; The shortcoming of technical scheme that has played the effect of escapement is: because the existence of oncus, the thickness of blade bodies is thicker, makes processing difficulties; Machining accuracy is difficult to guarantee, so the production cost of saw blade is higher.
The material of the cutting element of two paired saw blades is normally identical with hardness, and the material of the blade bodies of same two saw blades also is identical with hardness usually.In above-mentioned two technical schemes; The cutting element or the blade bodies of escapement and saw blade are arranged to one; Escapement on the saw blade in the running slides with the cutting element of another saw blade or blade bodies mutually; Because the antisticking wearing and tearing ability of the friction pair that the big material of same material or intersolubility is formed is relatively poor, escapement is prone to adhesive wear and saw blade was lost efficacy in the sliding friction process simultaneously.Therefore this pair saw blade circular sawing machine needs frequent change saw blade, troublesome poeration.
Can know following technical scheme from one Chinese patent application 201110145980.0 in addition: saw blades groups includes small one and large one a pair of saw blade of centre bore aperture; In the middle of these two saw blades; Also be provided with that a slice at least is not connected with arbitrary saw blade, external diameter and be 0.5～0.95 times of saw blade external diameter, prevent the axial limiting sheet that bumps in two saw blade rotary courses; The centre bore of the saw blade that the centre bore of described axial limiting sheet and centre bore aperture are bigger has equal inscribed circle diameter, and the bigger saw blade in axial limiting sheet and centre bore aperture can be accepted the outer output shaft flange centering of circular sawing machine constraint simultaneously.
Accept simultaneously in the saw blades groups of output shaft flange centering constraint outside the circular sawing machine at the bigger saw blade of axial limiting sheet and centre bore aperture; The bigger saw blade in axial limiting sheet and centre bore aperture can be made the axial float of certain amplitude on the output shaft flange outside circular sawing machine; The thickness of axial limiting sheet is thinner than saw blade usually; The axial limiting sheet be stacked in saw blade above, break away from easily the centering bead on the outer output shaft flange of circular sawing machine the centering constraint and can't operate as normal.
Summary of the invention
The purpose of the utility model is: a kind of saw blades groups of easily manufactured, low-cost long-life simple in structure is provided and contains the circular sawing machine of this saw blades groups.
The utility model is realized through following technical scheme:
Saw blades groups includes small one and large one a pair of saw blade of centre bore aperture, and wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, and blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction around same rotation rotation; And two saw blades are suitable approaching parallel to each other when rotated; The cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, in the middle of these two saw blades, also be provided with that a slice at least is not connected with arbitrary saw blade, external diameter and be 0.5～0.95 times of saw blade external diameter, prevent the axial limiting sheet that bumps in two saw blade rotary courses; The centre bore of the saw blade that the centre bore of described axial limiting sheet and centre bore aperture are less has equal inscribed circle diameter, and it is fixing that the less saw blade in axial limiting sheet and centre bore aperture can be accepted the interior output shaft flange centering of circular sawing machine simultaneously.
The advantage of the utility model is: the axial limiting sheet is independent lamellar body, and two saw blade manufacturing processing technics that match with it are identical with common saw blade, and technology is ripe, is convenient to saw blade low-cost production manufacturing in enormous quantities; Simultaneously because the axial limiting sheet is independent lamellar body, function singleness can reduce the fretting wear between axial limiting sheet and the saw blade through the technical parameters such as material, hardness and shape of very convenient choose reasonable axial limiting sheet, raising saw blades groups service life.The less saw blade in axial limiting sheet and centre bore aperture is accepted in the saw blades groups of output shaft flange centering constraint in the circular sawing machine simultaneously; The thickness of axial limiting sheet is thinner than saw blade usually; Saw blade be stacked in the axial limiting sheet above, saw blade and axial limiting sheet be difficult for to break away from centering constraint and the operate as normal of the centering bead on the outer output shaft flange of circular sawing machine.
In like manner, contain the circular sawing machine of above-mentioned saw blades groups, saw blades groups is fixing reliable, and saw blade low cost of manufacture, long service life are comparatively economical.
This saw blades groups and the circular sawing machine that contains saw blades groups can be realized through the measure of describing in the following technical scheme and further improve and perfect.
On the axial limiting sheet; Be provided with and accept the driver element of accepting that the output shaft flange drives in the circular sawing machine; The driving of output shaft flange realized that this axial limiting sheet and this saw blade rotate synchronously in the axial limiting sheet can be accepted respectively or simultaneously with the less saw blade in centre bore aperture.
The bigger saw blade in centre bore aperture to axial banking stop the face of blade bodies on recessed less than axial limiting sheet diameter is set; Can reduce the contact area of bigger saw blade in centre bore aperture and axial limiting sheet, thereby reduce the friction of saw blade and axial limiting sheet.
The face of the big saw blade in the relative centre bore of axial limiting sheet aperture be provided with the axial limiting sheet be one or the salient point that links into an integrated entity or convex tendon or bulge loop; Guaranteeing under the reliable spacing prerequisite of axial limiting sheet; Reduce the area of axial limiting sheet contact saw blade, thereby reduce the friction of saw blade and axial limiting sheet.。
With the antifriction layer, can reduce the coefficient of friction of axial limiting sheet contact saw blade on the face of the big saw blade in the relative centre bore of axial limiting sheet aperture.Antifriction layer and attachment shaft can be chemical to the adhering mode of banking stop, also can be physics with machinery, as electroplating etc.
The axial limiting sheet is dish shape or external tooth cushion or wavy annular.The axial limiting sheet is dish shape (being the shape of butterfly spring); The axial limiting sheet is external tooth cushion (being the shape of external tooth form packing ring); The axial limiting sheet is or wavy annular (being the shape of wave washer).The axial limiting sheet of dish shape, external tooth cushion and wavy annular can reduce the area that the axial limiting sheet contacts saw blade, and certain elasticity is arranged again simultaneously, reduces the accuracy of manufacture requirement of circular sawing machine.
The circular sawing machine that contains saw blades groups, motor that is provided with in the engine housing and transmission system, the inside and outside output shaft rotation that motor is concentric through transmission system drives and rotation direction is opposite drives the saw blades groups that is clamped on the inside and outside output shaft flange and carries out work; Saw blades groups comprises small one and large one a pair of saw blade of centre bore aperture, and wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, and blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction around same rotation rotation; And two saw blades are suitable approaching parallel to each other when rotated; The cutting element that has a saw blade at least in these two saw blades, on another saw blade direction, its blade bodies is axially protruded relatively; In the middle of these two saw blades; Also be provided with that a slice at least is not connected with arbitrary saw blade, external diameter and be 0.5～0.95 times of saw blade external diameter, prevent the axial limiting sheet that bumps in two saw blade rotary courses, the centre bore of the saw blade that the centre bore of axial limiting sheet and centre bore aperture are less has equal inscribed circle diameter, it is fixing that the less saw blade in axial limiting sheet and centre bore aperture can be accepted in the circular sawing machine centering of output shaft flange simultaneously.
Axial limiting sheet on the circular sawing machine is provided with accepts the driver element of accepting that the output shaft flange drives in the circular sawing machine; The driving of output shaft flange realized that this axial limiting sheet and this saw blade rotate synchronously in the axial limiting sheet can be accepted respectively or simultaneously with the less saw blade in centre bore aperture.
The less saw blade in axial limiting sheet on the circular sawing machine and centre bore aperture axially fastens together on interior output shaft flange, realizes that this axial limiting sheet and this saw blade rotate synchronously.
To form radial shape not sealed with the less saw blade in interior output shaft flange or centre bore aperture for axial limiting sheet on the circular sawing machine; It only plays the centering effect through its centre bore sleeve on the centering bead of interior output shaft flange, the axial limiting sheet can be free to slide in the centering of arbitrary relatively saw blade do.
Description of drawings
Fig. 1 is the partial sectional view of the utility model saw blades groups.
Fig. 2 is the partial sectional view of an embodiment of the utility model.
Fig. 3 is the left view of a kind of embodiment of axial limiting sheet among Fig. 2 embodiment.
Fig. 4 is the partial sectional view of another embodiment of the utility model.
Fig. 5 is the partial right side view of the bigger saw blade in the centre bore aperture among Fig. 4 embodiment.
Fig. 6 is the partial sectional view that one of the utility model is optimized embodiment.
Fig. 7 is the left view of a kind of embodiment of axial limiting sheet among Fig. 6 embodiment.
Fig. 8 is the partial sectional view that one of the utility model is optimized the embodiment circular sawing machine.
Fig. 9 is the partial sectional view of another embodiment circular sawing machine of the utility model.
The specific embodiment
Saw blades groups among Fig. 1 supplies sawing timber and metal; Comprise a pair of saw blade; Wherein each saw blade (10,20) respectively has a blade bodies (11,21) and is located at the cutting element (12,22) on the blade bodies periphery; Blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade (10) can rotate up in first party around a rotation (r), and first direction is towards picture in this example, representes with an open circles; And second saw blade (20) can rotate up in the second party opposite with first direction around same rotation (r), and second direction is for walking frame out, adds some points with a circle center and representes.
Two saw blades (10,20) are approaching parallel to each other when rotated; The cutting element (12) of the saw blade (10) in these two saw blades (10,20), on another saw blade (20) direction, its blade bodies (11) is axially protruded (H1) relatively; In the middle of these two saw blades; Also be provided with the axial limiting sheet (30) that a slice is not connected with arbitrary saw blade, and the external diameter (D2) of this axial limiting sheet (30) is 0.5～0.95 times of external diameter (D1) of saw blade, the thickness of axial limiting sheet is greater than the axial protrusion (H1) of the cutting element (12) of a saw blade (10); The axial limiting sheet is isolated two saw blades, bumps in two saw blades (10,20) rotary course preventing.Second saw blade (20) centre bore inscribed circle diameter d2 is littler than first saw blade (10) centre bore inscribed circle diameter d1; The centre bore inscribed circle diameter d3 of axial limiting sheet (30) and second saw blade (20) centre bore inscribed circle diameter d2 equate that it is fixing that the less saw blade (20) in axial limiting sheet and centre bore aperture can be accepted the interior output shaft flange centering of circular sawing machine simultaneously.
Certainly, the cutting element (22) of saw blade (20), on saw blade (10) direction, also its blade bodies (21) is axially protruded relatively.
Among Fig. 2 and Fig. 3 axially on the banking stop (30); Also be provided with accept that circular sawing machine output shaft flange drives accept driver element (33), the saw blade (20) that axial limiting sheet (30) can be less with the centre bore aperture is accepted the driving of same output shaft flange respectively or simultaneously and is rotated.
In Fig. 3, the centre bore of axial limiting sheet (30) illustrates that with circle the driver element (33) of accepting on the axial limiting sheet (30) separates with centre bore d3.Certainly, accept that driver element (33) and centre bore d2 can be designed to be integrally combined on the axial limiting sheet (30).
The centre bore d2 of the axial limiting sheet (30) among Fig. 4 and the centre bore d1 of saw blade (10) have equal inscribed circle diameter; Axial limiting sheet (30) is not sealed with arbitrary output shaft flange or arbitrary saw blade (10,20) formation radial shape, and it only plays the centering effect through the centering bead of its centre bore d2 sleeve on an output shaft flange; Axial limiting sheet (30) can arbitrary relatively saw blade (10; 20) do centering and be free to slide, axial limiting sector-meeting self-control is reduced friction.
The blade bodies (11) of the bigger saw blade (10) in centre bore aperture is provided with recessed (16) among Fig. 4 and Fig. 5; The diameter D3 of recessed (16) is less than the diameter D2 of axial limiting sheet (20); Can reduce the contact area of bigger saw blade in centre bore aperture (10) and axial limiting sheet (20), thereby reduce the friction of saw blade (10) and axial limiting sheet (20).The shape of recessed (16) can be circular, also can be annular; Recessed (16) can put down, and also can be oblique.
Axial limiting sheet (30) among Fig. 6 and Fig. 7 centre bore aperture relatively can reduce the coefficient of friction of axial limiting sheet (30) contact saw blade (10) than having antifriction layer (34) on the face of big saw blade (10).Antifriction layer (34) attachment shaft can be chemical to the adhering mode of banking stop, also can be physics with machinery, as electroplating etc.The centre bore d3 of the axial limiting sheet (30) among Fig. 5 illustrates that with regular hexagon certainly, the centre bore on the axial limiting sheet (30) can be shapes such as circle.
The face of the big saw blade in the relative centre bore of axial limiting sheet aperture be provided with the axial limiting sheet be one or the salient point that links into an integrated entity or convex tendon or bulge loop, can reduce the area of axial limiting sheet contact saw blade, realize the purpose of reducing friction.
The axial limiting sheet can be arranged to be dish shape or external tooth cushion or wavy annular.The axial limiting sheet of dish shape, external tooth cushion and wavy annular can reduce the area that the axial limiting sheet contacts saw blade, simultaneously certain elasticity is arranged again, can reduce the accuracy of manufacture requirement of circular sawing machine.
The circular sawing machine that saw blades groups is housed (40) among Fig. 8, motor that is provided with in the engine housing and transmission system, motor passes through the inside and outside output shaft (46 that transmission system drives is concentric and rotation direction is opposite; 41) rotation drives the saw blades groups that is clamped on inside and outside output shaft (46, the 41) flange and carries out work; Saw blades groups comprises a pair of saw blade (10; 20), wherein each saw blade respectively has a blade bodies (11,21) and is located at the cutting element (12 on the blade bodies periphery; 22), serve as reasons hard metal sawtooth or be coated with the segmental arc of diamond dust of cutting element; Wherein first saw blade suits on first direction, to rotate around a rotation (r); And second saw blade suits on the second direction opposite with first direction, to rotate around same rotation (r), and two saw blades are suitable approaching parallel to each other when rotated, the cutting element of the saw blade in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, and in the middle of these two saw blades, also is provided with the axial limiting sheet (30) that a slice at least is not connected with arbitrary saw blade; And the external diameter (D2) of this axial limiting sheet (30) is 0.5～0.95 times of external diameter (D1) of saw blade, bumps in two saw blade rotary courses preventing.The centre bore of the saw blade (20) that the centre bore of axial limiting sheet (30) and centre bore aperture are less has equal inscribed circle diameter, and it is fixing that the less saw blade (20) in axial limiting sheet (30) and centre bore aperture can be accepted interior output shaft (46) the flange centering of circular sawing machine simultaneously.
On the axial limiting sheet (30); Also be provided with and accept to drive on output shaft (46) flange in the circular sawing machine that output unit (48) drives accepts driver element (33); Axial limiting sheet (30) can be accepted the driving of interior output shaft (46) flange, realizes the rotation synchronously of the less saw blade (20) in this axial limiting sheet (30) and centre bore aperture.
The less saw blade (20) in axial limiting sheet (30) on the circular sawing machine (40) and centre bore aperture axially fastens on interior output shaft (46) flange through tightening member (49) together, realizes the rotation synchronously of the less saw blade (20) in this axial limiting sheet (30) and centre bore aperture.
The centre bore of the saw blade (20) that the centre bore of the axial limiting sheet (30) on the circular sawing machine that saw blades groups is housed (40) among Fig. 9 and centre bore aperture are less has equal inscribed circle diameter; Axial limiting sheet (30) is not sealed with interior output shaft (46) flange formation radial shape; Be axial limiting sheet (30) be not provided with accept that circular sawing machine output shaft flange (41) go up to drive that output unit (48) drives accept driver element (33); It has only gone up the centering effect through its centre bore (35) sleeve in the centering bead (47) of interior output shaft (46) flange; Tightening member (49) plays the axial limiting effect, and axial limiting sheet (30) can be free to slide in the centering of arbitrary relatively saw blade (10,20) do.
In the practical application, can circular sawing machine be optimized through the structure that transmission system rationally is set.
Claims (10)
1. saw blades groups includes small one and large one a pair of saw blade of centre bore aperture; Wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery; Blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction around same rotation rotation; And two saw blades are suitable approaching parallel to each other when rotated; The cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, in the middle of these two saw blades, also be provided with that a slice at least is not connected with arbitrary saw blade, external diameter and be 0.5～0.95 times of saw blade external diameter, prevent the axial limiting sheet that bumps in two saw blade rotary courses; It is characterized in that: the centre bore of the saw blade that the centre bore of described axial limiting sheet and centre bore aperture are less has equal inscribed circle diameter, and it is fixing that the less saw blade in axial limiting sheet and centre bore aperture can be accepted the interior output shaft flange centering of circular sawing machine simultaneously.
2. saw blades groups according to claim 1 is characterized in that: on the described axial limiting sheet, be provided with and accept the driver element of accepting that the output shaft flange drives in the circular sawing machine.
3. saw blades groups according to claim 1 is characterized in that: the bigger saw blade in described centre bore aperture to axial banking stop the face of blade bodies be provided with recessed less than axial limiting sheet diameter.
4. according to claim 1 or 2 or 3 described saw blades groups, it is characterized in that: the face of the big saw blade in the relative centre bore of described axial limiting sheet aperture be provided with the axial limiting sheet be one or the salient point that links into an integrated entity or convex tendon or bulge loop.
5. according to claim 1 or 2 or 3 described saw blades groups, it is characterized in that: have the antifriction layer on the face of the big saw blade in the relative centre bore of described axial limiting sheet aperture.
6. according to claim 1 or 2 or 3 described saw blades groups, it is characterized in that: described axial limiting sheet is dish shape or external tooth cushion or wavy annular.
7. the circular sawing machine that contains saw blades groups, motor that is provided with in the engine housing and transmission system, the inside and outside output shaft rotation that motor is concentric through transmission system drives and rotation direction is opposite drives the saw blades groups that is clamped on the inside and outside output shaft flange and carries out work; Saw blades groups comprises small one and large one a pair of saw blade of centre bore aperture, and wherein each saw blade respectively has a blade bodies and is located at the cutting element on the blade bodies periphery, and blade bodies is provided with centre bore, and cutting element is hard metal sawtooth or the segmental arc that is coated with diamond dust; Wherein first saw blade suits on first direction around a rotation rotation; And second saw blade suits on the second direction opposite with first direction around same rotation rotation; And two saw blades are suitable approaching parallel to each other when rotated; The cutting element that has a saw blade at least in these two saw blades; On another saw blade direction; Relatively its blade bodies is axially protruded, in the middle of these two saw blades, also be provided with that a slice at least is not connected with arbitrary saw blade, external diameter and be 0.5～0.95 times of saw blade external diameter, prevent the axial limiting sheet that bumps in two saw blade rotary courses; It is characterized in that: the centre bore of the saw blade that the centre bore of described axial limiting sheet and centre bore aperture are less has equal inscribed circle diameter, and it is fixing that the less saw blade in axial limiting sheet and centre bore aperture can be accepted the interior output shaft flange centering of circular sawing machine simultaneously.
8. circular sawing machine according to claim 7; It is characterized in that: on the described axial limiting sheet; Be provided with and accept the driver element of accepting that the output shaft flange drives in the circular sawing machine; The driving of output shaft flange realized that this axial limiting sheet and this saw blade rotate synchronously in the axial limiting sheet can be accepted respectively or simultaneously with the less saw blade in centre bore aperture.
9. circular sawing machine according to claim 7 is characterized in that: the less saw blade in described axial limiting sheet and centre bore aperture axially fastens together on interior output shaft flange, realizes that this axial limiting sheet and this saw blade rotate synchronously.
10. circular sawing machine according to claim 7; It is characterized in that: to form radial shape not sealed with the less saw blade in interior output shaft flange or centre bore aperture for the axial limiting sheet; It only plays the centering effect through its centre bore sleeve on the centering bead of interior output shaft flange, the axial limiting sheet can be free to slide in the centering of arbitrary relatively saw blade do.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203858266U CN202271033U (en) | 2011-09-29 | 2011-09-29 | Saw blade group and circular sawing machine including same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203858266U CN202271033U (en) | 2011-09-29 | 2011-09-29 | Saw blade group and circular sawing machine including same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202271033U true CN202271033U (en) | 2012-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203858266U Expired - Fee Related CN202271033U (en) | 2011-09-29 | 2011-09-29 | Saw blade group and circular sawing machine including same |
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| Country | Link |
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| CN (1) | CN202271033U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159576A1 (en) * | 2011-05-24 | 2012-11-29 | 胡必松 | Saw blade assembly and circular saw with same |
-
2011
- 2011-09-29 CN CN2011203858266U patent/CN202271033U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012159576A1 (en) * | 2011-05-24 | 2012-11-29 | 胡必松 | Saw blade assembly and circular saw with same |
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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 TCH Industrial Co., Ltd. Assignor: Hu Jining Contract record no.: 2013330000289 Denomination of utility model: Saw bit group and circular saw comprising same Granted publication date: 20120613 License type: Exclusive License Record date: 20130902 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20160929 |