CN102528767B - Cutting accessory and swing power tool comprising same - Google Patents
Cutting accessory and swing power tool comprising same Download PDFInfo
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- CN102528767B CN102528767B CN201010596890.9A CN201010596890A CN102528767B CN 102528767 B CN102528767 B CN 102528767B CN 201010596890 A CN201010596890 A CN 201010596890A CN 102528767 B CN102528767 B CN 102528767B
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- cutting accessory
- driving
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- 238000005520 cutting process Methods 0.000 title claims abstract description 115
- 230000009471 action Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 4
- 230000010355 oscillation Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 4
- 230000007246 mechanism Effects 0.000 description 10
- 230000005540 biological transmission Effects 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 5
- 238000013138 pruning Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010413 gardening Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 210000003625 skull Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
A cutting accessory is detachably mounted on a swing power tool. The swing power tool comprises a head shell and an output shaft extending out from the inside of the head shell, and the output shaft can rotate around the axis of the output shaft to swing in a reciprocating manner. The cutting accessory consists of a driving part, two movable blades and a guiding part, the driving part is fittingly connected with the output shaft, the two movable blades longitudinally extend, and the guiding part is fixed relative to the head shell. Both of the two movable blades are provided with heads, cutting portions and guiding portions, the heads match with the driving part, and the guiding portion matches with the guiding part. Saw teeth which are oppositely arranged are disposed on the cutting portions of the two movable blades, and the driving part is driven by the output shaft to rotate and swing in a reciprocating manner. The guiding part drives the two movable blades to longitudinally reciprocate in opposite directions so as to realize cutting. A cutting tool is detachably mounted on the handheld power tool, and is particularly used as the accessory on a multifunctional machine, and the application range of the multifunctional machine is expanded.
Description
Technical Field
The present invention relates to an accessory for a power tool, and more particularly to a cutting accessory removably attachable to an oscillating power tool. The invention also relates to an oscillating power tool using the cutting accessory.
Background
The multifunctional machine is a common swing type power tool in the industry, and the output shaft of the multifunctional machine performs rotary swing motion around the axis, so that after different accessory working heads are mounted on the output shaft, various different operation functions such as sawing, cutting, grinding, scraping and the like can be realized, and different working requirements can be met.
In the field of electric tools, gardening tools such as pruning shears are often used for trimming various plants. For example, U.S. Pat. No. 3897630 discloses a pair of pruning shears, which includes a main housing, a motor disposed in the main housing, a speed reduction mechanism, an output shaft driven by the speed reduction mechanism, and two cutting blades disposed in the main housing, wherein two sides of each cutting blade extend with a plurality of teeth. The tail end of the output shaft is provided with two eccentric wheels, and the two cutting blades are respectively provided with a hole corresponding to one of the eccentric wheels. When the motor drives the output shaft to rotate through the speed reducing mechanism, the two eccentric wheels are respectively matched with the openings of the corresponding cutting blades, so that the two cutting blades are driven to make relative reciprocating translation, and finally cutting is realized through the mutual movement of the cutter teeth.
There is no cutting accessory with the pruning shear function on the swing power tool at present, and a need exists for a cutting accessory applicable to the swing power tool to expand the application range of the swing power tool.
Disclosure of Invention
The invention aims to provide a cutting accessory which is used as an accessory of an oscillating power tool and is detachably arranged on the oscillating power tool so as to expand the application range of the oscillating power tool.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a cutting accessory is removably mounted on an oscillating power tool. The swing power tool comprises a head shell and an output shaft extending out of the head shell, and the output shaft can rotate around the axis of the output shaft to swing back and forth. The cutting accessory comprises a driving part matched and connected with the output shaft, two movable blades extending lengthwise and a guide part fixed relative to the head shell. The two movable blades are provided with heads matched with the driving piece, cutting parts and guide parts matched with the guide piece. The cutting parts of the two movable blades are provided with sawteeth which are oppositely arranged, and the driving piece is driven by the output shaft to rotate and swing in a reciprocating manner. Under the action of the guide piece, the two movable blades are driven to longitudinally reciprocate along opposite directions so as to realize cutting.
Preferably, the driving part is provided with an installation part matched and connected with the output shaft and two driving parts symmetrically arranged relative to the installation part, and the two driving parts are respectively matched and connected with the heads of the two movable blades.
Preferably, one of the driving part of the driving member and the head of the movable blade is provided with a sliding groove, and the other of the driving part and the head is provided with a roller which is accommodated in the sliding groove and can move in the sliding groove.
Preferably, the slot comprises two parallel linear segments located in the middle.
Preferably, the plane of the two movable blades is perpendicular to the output shaft, and the cutting parts of the two movable blades extend towards two sides respectively to form a plurality of sawteeth.
Preferably, the cutting attachment includes an upper shield engageable with the skull, the guide projecting from the upper shield.
Preferably, the cutting accessory comprises a lower shield mounted on the upper shield, and the driving member and the two movable blades are accommodated in a space formed between the upper shield and the lower shield.
Preferably, the upper shield includes an annular positioning portion that is fitted to the head housing, and a socket that extends from the positioning portion in a direction perpendicular to the axis of the output shaft.
Preferably, the guide parts of the two movable blades are elongated holes, and the guide parts are step-shaped protruding parts.
It is another object of the present invention to provide an oscillating power tool that can be used for pruning.
In order to achieve the purpose, the technical scheme of the invention is as follows: an oscillating power tool includes a head housing, an output shaft extending from within the head housing, the output shaft being rotatable about its own axis in reciprocating oscillation, and a cutting attachment mounted on the output shaft. The cutting accessory comprises a driving part matched and connected with the output shaft, two movable blades extending lengthwise and a guide part fixed relative to the head shell. The two movable blades are provided with heads matched with the driving piece, cutting parts and guide parts matched with the guide piece. The cutting parts of the two movable blades are provided with sawteeth which are oppositely arranged, and the driving piece is driven by the output shaft to rotate and swing in a reciprocating manner. Under the action of the guide piece, the two movable blades are driven to longitudinally reciprocate along opposite directions so as to realize cutting.
The cutting accessory is detachably arranged on the swing power tool, the two movable blades are driven by the driving piece to perform relative reciprocating translation to cut an object, and the application range of the swing power tool is expanded when the cutting accessory is used as the accessory.
Drawings
FIG. 1 is a perspective view of an oscillating power tool with a cutting accessory mounted thereon in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a portion of the oscillating power tool of FIG. 1;
FIG. 3 is a perspective view of the cutting attachment shown in FIG. 1;
FIG. 4 is an exploded perspective view of the oscillating power tool of FIG. 3;
FIG. 5 is an exploded view of the oscillating power tool of FIG. 3 in another orientation;
FIG. 6 is a reference view of the cutting attachment of FIG. 1 in use with the drive member in a horizontal position;
FIG. 7 is a reference view of the cutting attachment of FIG. 1 in use with the drive member rotated clockwise to an extreme position;
fig. 8 is a reference view of the cutting attachment in use, with the drive member rotated counterclockwise to an extreme position.
The relevant elements in the figures are numbered correspondingly as follows:
wherein,
100. swing power tool 204, guide 231, first head
1. Swing main frame 205, first bump 232, first cutting portion
10. Case 206, second bump 233, first roller
11. Output shaft 21, lower shield 234, first saw tooth
111. Boss 211, through hole 235, first slide rail
112. Screw hole 212, opening 24, second movable blade
113. Flange 213, limiting hole 241, second head
12. Head shell 22, driving piece 242 and second cutting part
13. Tail shell 221, mounting portion 243, second roller
14. Cable 222, first drive 244, second saw tooth
15. Switch 223, second driving part 245, second slide rail
2. Cutting accessory 224, first runner 25, support post
20. Upper shield 2241, first straight line segment 26, bolt
201. Through hole 225, second runner 27, nut
202. Bearing seat 2251, first straight line segment 3, locking piece
203. Positioning part 23, first moving blade
Detailed Description
The invention is described in further detail below with reference to the figures and the embodiments.
Referring to fig. 1 and 2, there is provided an oscillating power tool 100 according to a preferred embodiment of the present invention,
the cutting device comprises a swinging host machine 1 and a cutting accessory 2 installed on the swinging host machine 1, wherein the swinging host machine 1 drives the cutting accessory 2 to realize a cutting function.
Throughout the specification, the right side of the oscillating power tool 100 as shown in fig. 1 is defined as "front" and the left side as "rear". The swing master 1 includes a housing 10, a motor (not shown) and a transmission mechanism (not shown) housed in the housing 10, and an output shaft 11 driven by the transmission mechanism. The housing 10 extends in a longitudinal direction, and includes a head housing 12 located at a front portion of the swing main body 1 and a tail housing 13 located at a rear portion of the head housing 10. The motor is arranged in the tail shell 13, the transmission mechanism is arranged in the head shell 12, the motor shaft extends forwards to be matched and connected with the transmission mechanism, and the transmission mechanism converts the rotary motion output by the motor shaft into the rotary reciprocating swinging motion of the output shaft 11 around the axis X of the output shaft. The cutting attachment 2 is disposed below a head case 12 of the swing body 1, is disposed substantially in parallel with a tail case 13 of the swing body 1, and is axially coupled to the output shaft 11 via a locking member 3.
The swing master 1 further includes a cable 14 connected to the rear of the tail housing 13 and supplying power to the motor, and a switch 15 controlling power transmission. When the switch 15 is switched on, the motor drives the cutting accessory 2 to perform cutting operation; when the switch 15 is switched off, the motor stops rotating and the cutting attachment 2 stops working.
Referring to fig. 2 and 4, the head housing 12 is substantially "L" shaped, with one end connected to the tail housing 13 and the other end being substantially truncated cone shape that gradually contracts. The output shaft 11 is accommodated in the head housing 12, one end of the output shaft is coupled to the transmission mechanism, the other end of the output shaft extends from the free end of the head housing 12, and the extending direction of the output shaft 11 is substantially perpendicular to the extending direction of the tail housing 13. The end of the output shaft 11 is provided with a boss 111 in the shape of a regular hexagon. The boss 111 has a threaded hole 112 at the center thereof to receive the fixing fastener 3. The free end of the output shaft 11 is also provided with an annular flange 113 around the boss 111, and the upper surface of the flange 113 is lower than the upper surface of the boss 111 to radially support the cutting tool 2.
Referring to fig. 3, in the present embodiment, the cutting accessory 2 and the swing main body 1 are detachable and separated, and the cutting accessory 2 is installed on the swing main body 1 as a single accessory through the locking member 3. The cutting accessory 2 comprises an upper shield 20, a lower shield 21 matched with the upper shield, a driving part 22 accommodated between the upper shield 20 and the lower shield 21, and a first movable blade 23 and a second movable blade 24 which are respectively connected with the driving part 22. The first and second movable blades 23, 24 are stacked and reciprocally translated with respect to the upper guard 20. After the cutting accessory 2 is mounted on the swinging host 1, when the swinging host 1 works, the motor drives the output shaft 11 to rotate and swing in a reciprocating manner, so as to drive the driving part 22 matched and connected with the output shaft 11 to rotate and swing in a reciprocating manner, and the driving part 22 further drives the first moving blade 23 and the second moving blade 24 to move in a reciprocating manner relatively, so as to realize a cutting function.
Referring to fig. 4 and 5, the detailed structure of the cutting attachment 2 will be described in detail. The lower shroud 21 has a substantially square plate shape, and four through holes 211 are dispersedly formed therein, and the upper shroud 20 has four through holes 201 corresponding to the through holes 211. Four hollow support columns 25 are arranged between the through holes 201 and the through holes 211 between the upper shield 20 and the lower shield 21, and four bolts 26 respectively pass through the through holes 211 of the lower shield 21, the support columns 25, the through holes 201 of the upper shield 20 and are finally fixed by four nuts 27, so that the lower shield 21 and the upper shield 20 are fixed together. By arranging the supporting columns 25, a sufficient space is formed between the upper and lower shields 20, 21 to accommodate the driving member 20 and the upper and lower movable blades 23, 24, and the upper and lower movable blades 23, 24 are free to perform corresponding reciprocating translation.
The upper guard 20 includes a receiving base 202 having a substantially flat plate shape and a positioning portion 203 connected to the receiving base 202. The bearing seat 202 is located in a plane perpendicular to the axis X of the output shaft 11 and substantially parallel to the lower shroud 21. The positioning part 203 extends from one side of the receiving seat 202, and has a shape substantially corresponding to the shape of the head shell 12, and can be tightly fitted on the head shell 12. A guide 204 projects from the socket 202 on a side thereof remote from the head housing 12 in a direction parallel to the axis X of the output shaft 11. The guide 204 is stepped and includes a first projection 205 of a larger size and a second projection 206 of a smaller size. The two bumps are rectangular, wherein the second bump 206 extends from the middle of the first bump 205 away from the output shaft 11.
The lower guard 21 is mounted on the receiving seat 202 of the upper guard 20, so that the driver 22, the first movable blade 23, and the second movable blade 24 are accommodated in a space formed between the upper and lower guards 20, 21. The lower shroud 21 has an opening 212 corresponding to the positioning portion 203 of the upper shroud 20 on one side, and the size of the opening 212 is larger than the maximum outer diameter of the locking member 3, so that the locking member 3 can pass through the opening 212 of the lower shroud 21 to be coupled with the driving member 22. The other side of the lower guard 21, corresponding to the guide 204 of the upper guard 20, is provided with a limiting hole 213 that can be sleeved on the second protrusion 206 of the guide 204, so as to axially limit the first movable blade 23 and the second movable blade 24 on the guide 204 of the upper guard 20.
Both the moving blades 23, 24 are substantially flat and are located in a plane perpendicular to the axis X of the output shaft 11. The two movable blades 23, 24 are symmetrical in shape and extend lengthwise in a direction substantially perpendicular to the driving member 22. The first movable blade 23 has a first head 231 with a substantially L-shape and a linear first cutting portion 232 extending perpendicularly from one end of the first head 231 away from the driving member 22, and the second movable blade 24 has a second head 241 symmetrical to the first head 231 of the first movable blade 23 and a second cutting portion 242 extending perpendicularly from one end of the second head 241 away from the driving member 22. One end of the first head 231 of the first movable blade 23, which is far away from the first cutting portion 232, is provided with a first roller 233 protruding toward the driving member 22, and correspondingly, the second head 241 of the second movable blade 24 is provided with a second roller 243. The two movable blades 23 and 24 are connected to the driving member 22 through the first roller 233 and the second roller 243, respectively, so as to be driven by the driving member 22. The first cutting portion 232 of the first movable blade 23 and the second cutting portion 242 of the second movable blade 24 are overlapped, and the first cutting portion 232 and the second cutting portion 242 respectively extend towards two sides to form a plurality of first saw teeth 234 and second saw teeth 244. When the first cutting portion 232 and the second cutting portion 242 are reciprocally translated, a cutting action is formed between the opposing saw teeth 234, 244. The first cutting portion 232 of the first movable blade 23 is further provided with a first sliding rail 235 engaged with the guide 204 of the upper shield 20, and the second cutting portion 242 of the second movable blade 24 is correspondingly provided with a second sliding rail 245. The first sliding rail 235 and the second sliding rail 245 are both strip-shaped openings, and are through to each other and have a size just enough to accommodate the second protrusion 206 of the guiding element 204, so that the second protrusion 206 can slide in the first sliding rail 245 and the second sliding rail 245.
It should be noted that, as will be readily appreciated by those skilled in the art, the first slide rail and the second slide rail of the present invention may also be provided with a protrusion, and accordingly, the guide of the upper shield may be formed in a long strip-shaped opening.
The driving member 22 is adapted to the output shaft 11, and the driving member drives the two movable blades 23 and 24 to move reciprocally and relatively under the driving of the output shaft 11, so as to realize the cutting operation. The driving member 22 is made of metal and has a substantially rectangular shape, wherein the middle portion thereof is provided with a mounting portion 221 adapted to the boss 111 of the output shaft 11, and the two ends thereof are symmetrically provided with a first driving portion 222 and a second driving portion 223. The mounting portion 221 is a regular hexagonal hole, has a size corresponding to the boss 111 of the output shaft 11, and properly receives the boss 111. The first driving portion 222 has a first sliding slot 224, and the second driving portion 223 has a second sliding slot 225. The center connecting line of the two sliding grooves passes through the center of the mounting part 221, the middle part of the first sliding groove 224 is provided with two parallel opposite first straight line sections 2241, and the middle part of the second sliding groove 225 is also provided with two parallel opposite second straight line sections 2251. The first slide groove 224 is used for accommodating the first roller 233 of the first movable blade 23, and the second slide groove 225 is used for accommodating the second roller 243 of the second movable blade 24. The first sliding groove 224 and the second sliding groove 225 are both circular with the same size, and the size is slightly larger than the first roller 233 and the second roller 243, and the first roller 233 and the second roller 243 can slide in the first sliding groove 224 and the second sliding groove 225 respectively.
It should be noted that, as will be readily apparent to those skilled in the art, the mounting portion of the driving member 22 in the present invention may have other shapes than regular hexagon, and may have other regular polygons, such as regular triangle, quadrangle, pentagon, etc.; or a plurality of columnar projections on the output shaft are combined with corresponding holes on the driving piece, or projections with other shapes (such as star shapes) on the output shaft are combined with corresponding holes on the driving piece, and the like. If after the driving piece and the output shaft are matched, when the output shaft rotates and swings in a reciprocating mode, the driving piece can be driven, relative sliding cannot occur, and the driving piece can be limited to a plurality of different angle positions according to needs.
The assembly process of the cutting attachment 2 in the present embodiment is as follows, first, the driving member 22 is placed on the receiving seat 202 of the upper guard 20; then, the first movable blade 23 and the second movable blade 24 are mounted on the bearing seat 202 of the upper shield 20 in an overlapping manner, so that the first slide rail 235 of the first movable blade 23 and the second slide rail 245 of the second movable blade 24 are respectively sleeved on the second bump 206 of the guide 204 of the upper shield 20; meanwhile, the first roller 233 of the first movable blade 23 is accommodated in the first slide groove 224 of the driving member 22, and the second roller 243 of the second movable blade 24 is accommodated in the second slide groove 225 of the driving member 22; then, the four supporting posts 25 are respectively placed corresponding to the four through holes 201 on the bearing seat 202 of the upper shield 20, the lower shield 21 is buckled on the upper shield 20, and the limiting hole 213 of the lower shield 21 is sleeved on the guide 204 of the upper shield 20; finally, the four bolts 26 are passed through the through holes 211 of the lower shroud 21, the support columns 25, the through holes 201 of the upper shroud 20, respectively, and finally fixed by the nuts 27.
Through the steps, after the cutting accessory 2 is assembled, when the cutting accessory 2 is used, after the cutting accessory 2 is positioned on the head shell 12 of the swing main machine 1 in a matching mode, the mounting portion 221 of the driving piece 22 is matched and connected on the boss 111 of the output shaft 11, the locking piece 3 is connected into the threaded hole 112 of the output shaft 11, the driving piece 22 is axially fixed relative to the output shaft 11, and therefore the cutting accessory 2 and the swing main machine 1 are fixed together, and the cutting function is achieved under the driving of the swing main machine 1.
Next, the cutting principle of the cutting attachment 2 will be described in detail with reference to fig. 2, 4, 6 to 8. The mounting portion 221 of the driving member 22 is coupled to the boss 111 of the output shaft 11, the first roller 233 of the first head 231 of the first movable blade 23 is received in the first sliding slot 224 of the driving member 22, and the second roller 243 of the second head 241 of the second movable blade 24 is received in the second sliding slot 225 of the driving member 22. The first movable blade 23 and the second movable blade 24 are crossly sleeved on the guide 204 of the upper shield 20 in a relatively reciprocating translational manner. When the swing power tool 100 works, the motor shaft of the swing main body 1 drives the output shaft 11 to rotate and reciprocate through the transmission mechanism, and the output shaft 11 further drives the driving member 22 to rotate and reciprocate through the matching of the boss 111 and the mounting portion 221 of the driving member 22. Under the action of the guide 204 of the upper shield 20, the driving member 22 further drives the first movable blade 23 and the second movable blade 24 to perform a reciprocating translation relatively, so that a cutting function is formed between the saw teeth 234 and 244 of the first cutting portion 232 and the second cutting portion 242.
In the present embodiment, the swing angle of the output shaft 11 of the swing power tool 100 is 2 β, i.e. the value of the angle between the limit position to which the output shaft 11 swings clockwise and the limit position to which the output shaft 11 swings counterclockwise, wherein 2 β is between 0.5 ° and 10 °, and the swing frequency of the output shaft 11 is between 500 times and 25000 times per minute. It is apparent that the swing angle and the swing frequency of the swing power tool 100 in the present invention are not limited to the above ranges, and may be other values.
As shown in fig. 6, when the driving member 22 is in a substantially horizontal position, the first cutting portion 232 of the first movable blade 23 substantially coincides with the second cutting portion 242 of the second movable blade 24, and the distance between the adjacent saw teeth 23 and 24 in the vertical direction is D1.
As shown in fig. 7, the output shaft 11 rotates the driver 22 clockwise by β. In the process, the driving member 22 drives the first movable blade 23 to vertically and downwardly translate for a certain distance through the cooperation of the first sliding slot 224 and the first roller 233, and the guidance of the guiding member 204 of the upper shield 20 and the first sliding rail 235; meanwhile, through the matching of the second sliding groove 225 and the second roller 243 and the guiding of the guide piece 204 and the second sliding rail 245 of the upper shield 20, the second movable blade 24 is driven to vertically and upwardly translate for a certain distance, and finally the first cutting part 232 and the second cutting part 242 are staggered for a certain distance after reciprocating translation, so that the distance between the sawteeth 23 and 24 in the vertical direction is reduced from D1 to D2, and the cutting effect on objects such as branches and the like placed between the sawteeth 23 and 24 can be realized.
As shown in fig. 8, contrary to fig. 7, the output shaft 11 rotates the driving member 22 counterclockwise by β, and swings to the counterclockwise limit position. In the process, the driving member 22 drives the first movable blade 23 to vertically translate upwards for a certain distance, and simultaneously drives the second movable blade 24 to vertically translate downwards for a certain distance, and finally the first cutting portion 232 and the second cutting portion 242 are enabled to reciprocate horizontally and then staggered for a certain distance, so that the distance between the sawteeth 23 and 24 in the vertical direction is also reduced from D1 to D2, and the cutting effect on objects, such as branches and the like, placed between the sawteeth 23 and 24 can be realized.
It should be noted that the present invention is not limited to the cutting attachment disclosed in the above embodiments being provided separately from the swing body, and being mounted on the swing body as one attachment. It will be readily appreciated by those skilled in the art that the cutting attachment of the present invention may also be machined to be integral with the oscillating master.
Compared with the prior art, the swinging power tool with the cutting accessory, provided by the invention, has the advantages that the output shaft drives the driving part to rotate and swing in a reciprocating manner, the driving part further drives the two movable blades to do relative reciprocating translational motion so as to realize a cutting function, and the swinging power tool can be used for trimming plants in gardening, so that more application directions are provided for a multifunctional machine.
It will be appreciated by those skilled in the art that the invention can be implemented in other ways, provided that the technical spirit of the invention is the same as or similar to the invention, or that any changes and substitutions based on the invention are within the protection scope of the invention.
Claims (10)
1. A cutting accessory removably mountable on an oscillating power tool, said oscillating power tool including a head housing and an output shaft extending from within said head housing, said output shaft being rotatable about its own axis in reciprocating oscillation, characterized in that: the cutting accessory comprises a driving piece, two lengthwise extending movable blades and a guide piece, wherein the driving piece is matched with the output shaft, the two lengthwise extending movable blades are opposite to the guide piece, the two movable blades are provided with a head part matched with the driving piece, a cutting part and a guide part matched with the guide piece, the cutting parts of the two movable blades are provided with oppositely arranged sawteeth, the driving piece is driven by the output shaft to rotate and swing in a reciprocating mode, and the two movable blades are driven to longitudinally reciprocate in opposite directions under the action of the guide piece so as to achieve cutting.
2. The cutting accessory of claim 1, wherein: the driving piece is provided with an installation part matched with the output shaft and two driving parts symmetrically arranged on the installation part, and the two driving parts are respectively matched with the heads of the two movable blades.
3. The cutting accessory of claim 2, wherein: one of the driving part and the head part of the movable blade is provided with a sliding groove, and the other of the driving part and the head part is provided with a roller which is accommodated in the sliding groove and can move in the sliding groove.
4. The cutting accessory of claim 3, wherein: the chute comprises two straight line sections which are positioned in the middle and arranged in parallel.
5. The cutting accessory of claim 1, wherein: the plane of the two movable blades is perpendicular to the output shaft, and the cutting parts of the two movable blades extend towards two sides respectively to form a plurality of sawteeth.
6. The cutting accessory of claim 1, wherein: the cutting accessory comprises an upper shield matched with the head shell, and the guide piece is formed by protruding and extending from the upper shield.
7. The cutting accessory of claim 6, wherein: the cutting accessory comprises a lower protective cover arranged on the upper protective cover, and the driving piece and the two movable blades are accommodated in a space formed between the upper protective cover and the lower protective cover.
8. The cutting accessory of claim 6, wherein: the upper shield comprises an annular positioning part matched and connected with the head shell and a bearing seat extending from the positioning part along the direction vertical to the axis of the output shaft.
9. The cutting accessory of claim 6, wherein: the guide parts of the two movable blades are elongated holes, and the guide parts are step-shaped protruding parts.
10. An oscillating power tool, comprising a head housing, an output shaft extending from the interior of the head housing, and a cutting attachment mounted on the output shaft, the output shaft being rotatable about its own axis to oscillate reciprocally, characterized in that: the cutting accessory comprises a driving piece, two lengthwise extending movable blades and a guide piece, wherein the driving piece is matched with the output shaft, the two lengthwise extending movable blades are opposite to the guide piece, the two movable blades are provided with a head part matched with the driving piece, a cutting part and a guide part matched with the guide piece, the cutting parts of the two movable blades are provided with oppositely arranged sawteeth, the driving piece is driven by the output shaft to rotate and swing in a reciprocating mode, and the two movable blades are driven to longitudinally reciprocate in opposite directions under the action of the guide piece so as to achieve cutting.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596890.9A CN102528767B (en) | 2010-12-15 | 2010-12-15 | Cutting accessory and swing power tool comprising same |
| PCT/CN2011/084036 WO2012079519A1 (en) | 2010-12-15 | 2011-12-15 | Cutting accessory and oscillating power tool using same |
| EP11847940.1A EP2653275A4 (en) | 2010-12-15 | 2011-12-15 | Cutting accessory and oscillating power tool using same |
| US13/994,693 US20130263456A1 (en) | 2010-12-15 | 2011-12-15 | Cutting accessory and an oscillating power tool using the cutting accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010596890.9A CN102528767B (en) | 2010-12-15 | 2010-12-15 | Cutting accessory and swing power tool comprising same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102528767A CN102528767A (en) | 2012-07-04 |
| CN102528767B true CN102528767B (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010596890.9A Active CN102528767B (en) | 2010-12-15 | 2010-12-15 | Cutting accessory and swing power tool comprising same |
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| CN (1) | CN102528767B (en) |
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| WO2014198072A1 (en) * | 2013-06-09 | 2014-12-18 | 铁鎯电动工具有限公司 | Electric dual-piece grooving machine |
| CN103975782B (en) * | 2014-05-20 | 2016-03-23 | 国网山东省电力公司聊城供电公司 | Lopping device |
| CN105766549A (en) * | 2014-12-24 | 2016-07-20 | 镇江盛弘景观植物有限公司 | Double-saw-blade tree digging machine |
| CN108296948A (en) * | 2017-01-13 | 2018-07-20 | 苏州宝时得电动工具有限公司 | Sander |
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| CN101811306A (en) * | 2010-04-13 | 2010-08-25 | 张家港红牛工具有限公司 | Portable rechargeable-type electric scissors |
| CN101823265A (en) * | 2009-03-06 | 2010-09-08 | 苏州宝时得电动工具有限公司 | Shearing tool |
| CN201609906U (en) * | 2010-01-06 | 2010-10-20 | 苏州宝时得电动工具有限公司 | Shearing tool |
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2010
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| EP0189768A3 (en) * | 1985-01-30 | 1986-11-05 | Kress-elektrik GmbH + Co. Elektromotorenfabrik | Electric hand tool |
| CN200957607Y (en) * | 2006-09-11 | 2007-10-10 | 陈颖东 | Reciprocating food chopper |
| CN201186443Y (en) * | 2008-01-29 | 2009-01-28 | 蔡谋榜 | Electric cutter |
| CN101823265A (en) * | 2009-03-06 | 2010-09-08 | 苏州宝时得电动工具有限公司 | Shearing tool |
| CN201609906U (en) * | 2010-01-06 | 2010-10-20 | 苏州宝时得电动工具有限公司 | Shearing tool |
| CN101811306A (en) * | 2010-04-13 | 2010-08-25 | 张家港红牛工具有限公司 | Portable rechargeable-type electric scissors |
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| Publication number | Publication date |
|---|---|
| CN102528767A (en) | 2012-07-04 |
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