CN102794503B - Electric reciprocating saw - Google Patents
Electric reciprocating saw Download PDFInfo
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- CN102794503B CN102794503B CN201210325320.5A CN201210325320A CN102794503B CN 102794503 B CN102794503 B CN 102794503B CN 201210325320 A CN201210325320 A CN 201210325320A CN 102794503 B CN102794503 B CN 102794503B
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Abstract
The invention discloses an electric reciprocating saw, comprising an enclosure and a motor which is used as a power source, wherein the motor is linked with reciprocating rods fixedly provided with saw blades through transmission mechanisms; two transmission mechanisms are arranged, have same structures and are arranged in parallel; each transmission mechanism comprises a large gear which is linked with an output end of the motor, a crank shaft fixed with the center of the large gear, and a swinging rod bearing arranged on the periphery of the crank shaft; the two large gears are respectively arranged at two sides of the tail end of the output end of the motor; the two reciprocating rods fixedly provided with the saw blades are arranged; and the swinging rod bearing in each transmission mechanism is connected with the respective reciprocating rod. The motor can drag the two large gears at the same time so that the two saw blades can do movements in opposite directions all the time so that the device can bear force in the opposite directions, resultant force of external force borne by the device is nearly zero and an unbalanced phenomenon does not happen; and therefore, the vibration caused by cutting is obviously reduced, the cutting is stable, the efficiency is high and the operation is safe. The relative position and the relative angle of a crank shaft body and a bearing inner ring are changed so that the saw blades have the two different working routes and the same reciprocating saw can meet the cutting requirements of workpieces with different textures at the same time.
Description
Technical field
The present invention relates to a kind of reciprocating saw, especially one has two saw blade and can realize two-pass electric reciprocating saw.
Background technology
Electric reciprocating saw is a kind of relatively more conventional instrument, is widely used in the industries such as automobile, propagation, wooden model, decoration, leather, is cut by the straight reciprocating motion of saw blade to workpiece.The cutting object of reciprocating saw can be the mixing of timber, metal or these materials, because cutting object is relatively wider, and also easy to carry, be suitable for the occasions such as house ornamentation.
Conventional reciprocating saw is all single saw blade, by the rotary motion of motor by various different transmission mechanism, as eccentric wheel, fork etc., be converted into the reciprocating motion of reciprocating lever, can be the Chinese patent of CN202097463U see Authorization Notice No., Authorization Notice No. is the Chinese patent of CN2582802Y, and Authorization Notice No. is the Chinese patent etc. of CN2877933Y.When reciprocating lever is reciprocating, the vibration in whole reciprocating saw generation Y-axis, X-direction must be made.For eliminating this vibration, can by configuring balance weight in the Y-axis direction, but existing reciprocating saw only whereby balance weight be difficult to be fitted on position, and generally there is the speed adjusting gear carrying out speed governing for different operating requirement, when being adjusted to different speed with regard to more difficult registration aequum, and in the X-axis direction than configuration balance weight more difficult in Y direction.
In addition, because saw blade is one direction cutting, often produce the impact phenomenon of similar " recoil ", this recoil is born by the base of reciprocating saw completely.This is because saw blade is the cut workpiece while; workpiece has reaction force to it; the consequence of this reaction force is that operator is difficult to manipulate reciprocating saw very accurately; often there will be some phenomenons such as to beat when operation; be difficult to operationally keep balance; produce some to cut workpiece to impact; be not suitable for cutting some crisp materials; and be easy to the fatigue causing operator; make it can not use reciprocating saw for a long time, likely can damage operator because of impact time serious.
Moreover, in the use procedure of reciprocating saw, often need the workpiece cutting differing texture, as cut the soft workpiece stroke different with needing reciprocating saw during hard workpiece, and series excited machine is in the constant frequency that lights a cigarette, firm power situation, a rotating speed can only be provided, cannot two-pass be realized, thus existing one-stroke reciprocating saw can not meet different stroke needs for different workpiece, thus have impact on use.
Summary of the invention
Technical problem to be solved by this invention is a kind of electric reciprocating saw, can eliminate vibration and reaction force, improve cutting efficiency simultaneously by symmetrically arranged pair of saw blade.
The present invention solves the problems of the technologies described above first adopted technical scheme: a kind of electric reciprocating saw, comprise casing and the motor as power source, described motor is connected by transmission mechanism and the reciprocating lever being fixed with saw blade, it is characterized in that, described transmission mechanism has two, and structure is identical, be set up in parallel, each described transmission mechanism comprises the gear wheel linked with the output of described motor, with the bent axle that described gear wheel center is fixing, and be arranged on the Oscillating lever bearing of described bent axle periphery, two described gear wheels are separately positioned on the output end both sides of described motor, the described reciprocating lever being fixed with saw blade also has two, and the described Oscillating lever bearing in each described transmission mechanism connects respective reciprocating lever.
Described Oscillating lever bearing comprises fork, the bearing outer ring fixed with described fork, and is placed in and can makes the bearing inner race of relative motion with described bearing outer ring in described bearing outer ring, and described bearing inner race has the inner ring hole of inclination; Described bent axle comprises main shaft, one end and the described gear wheel of described main shaft are fixed, the other end of described main shaft is extended with described main shaft in the bent axle main body tilted, described bent axle main body penetrates in described inner ring hole, the end face of described main shaft is provided with axially outstanding alignment pin with described bent axle main body adjacent, the stopper slot that the described alignment pin of the confession end face that described bearing inner race is relative with described main shaft offering circumferential arc slides, the two ends of described stopper slot have first positioning step and the second positioning step that can abut with described alignment pin.Thus, the direction of rotation of motor can be controlled, make reciprocating saw be operated in the state of Long Distances or little stroke, to meet the cutting needs of the workpiece of differing texture.
Described Oscillating lever bearing also comprises the adapter sleeve be arranged on outside described fork, and described adapter sleeve is connected to described reciprocating lever by connecting pin, thus the swing of fork can drive reciprocating lever to do the straight reciprocating motion of front and back.
Described bent axle main body is fixing through being inserted into coupling in crankshaft end cover after described inner ring hole, and the end face side end face corresponding to described bearing inner race of described crankshaft end cover is adaptive, to avoid bent axle and bearing inner race operationally play.
The mode that motor and gear wheel realize linking is preferably, and the output end of described motor is provided with pinion, and described pinion both sides are engaged with the gear wheel of two described transmission mechanisms respectively.
The present invention solves the problems of the technologies described above second adopted technical scheme: a kind of electric reciprocating saw, comprise casing and the motor as power source, described motor is connected by transmission mechanism and the reciprocating lever being fixed with saw blade, it is characterized in that, described transmission mechanism is by front, after the first transmission mechanism of connecting successively and the second transmission mechanism composition, described first transmission mechanism comprises the gear wheel linked with the output of described motor, with the first bent axle that described gear wheel center is fixing, and be arranged on the first Oscillating lever bearing of described first bent axle periphery, described second transmission mechanism comprises the second bent axle being connected to described first bent axle, and be arranged on the second Oscillating lever bearing of described second bent axle periphery, described first bent axle is contrary with described second bent axle angle of inclination, the described reciprocating lever being fixed with saw blade also has two, described first Oscillating lever bearing connects the first reciprocating lever, described second Oscillating lever bearing connects the second reciprocating lever.
Described first Oscillating lever bearing is provided with the first fork fixed with the clutch shaft bearing outer ring of described first Oscillating lever bearing, and described first fork overcoat has the first adapter sleeve, and described first adapter sleeve is connected to described first reciprocating lever by the first connecting pin; Described second Oscillating lever bearing is provided with the second fork fixed with the second bearing outer ring of described second Oscillating lever bearing, described second fork overcoat has the second adapter sleeve, described second adapter sleeve is connected to described second reciprocating lever by the second connecting pin, thus the swing of fork can drive reciprocating lever to do the straight reciprocating motion of front and back.
The mode that motor and gear wheel realize linking is preferably, and the output end of described motor is provided with pinion, and described pinion engages with described gear wheel.
Compared with prior art, the invention has the advantages that: because motor can drag two gear wheels simultaneously, and drive two reciprocating levers to do symmetrical reciprocating motion, therefore make two saw blades do the contrary motion in direction all the time, make machine bear the contrary power of both direction thus simultaneously, make machine bear making a concerted effort almost nil and there will not be unbalanced phenomenon of external force, therefore machine obviously declines by cutting the vibration caused, make cutting steadily, efficiency is high, handling safety; By controlling the direction of rotation of motor, change relative position and the angle of bent axle main body and bearing inner race, thus make saw blade have two different impulse strokes, with the cutting needs making same reciprocating saw can meet the workpiece of differing texture simultaneously; And adopt two transmission mechanisms to connect the mode of drive two reciprocating levers successively, then make the structure of whole transmission more simple, thereby also reduce cost.
Accompanying drawing explanation
Fig. 1 is the perspective view of reciprocating saw of the present invention;
Fig. 2 is the transmission mechanism enlarged diagram of reciprocating saw;
The front view of Fig. 3-1 Oscillating lever bearing of the present invention;
Fig. 3-2 is the sectional view of Oscillating lever bearing of the present invention;
The schematic diagram of transmission mechanism (locally) when Fig. 4-1 is Long Distances;
The side view of transmission mechanism (locally) when Fig. 4-2 is Long Distances;
The front view of transmission mechanism (locally) when Fig. 4-3 is Long Distances;
The sectional view of transmission mechanism (locally) when Fig. 4-4 is Long Distances;
When Fig. 4-5 is Long Distances, main shaft turns over the sectional view of the transmission mechanism (locally) after 180 ° of C;
The schematic diagram of transmission mechanism (locally) when Fig. 5-1 is little stroke;
The side view of transmission mechanism (locally) when Fig. 5-2 is little stroke;
The front view of transmission mechanism (locally) when Fig. 5-3 is little stroke;
The sectional view of transmission mechanism (locally) when Fig. 5-4 is little stroke;
The sectional view of transmission mechanism (locally) when Fig. 6 is specific little stroke;
Fig. 7 is the schematic diagram of another embodiment of transmission mechanism;
Fig. 8 is the sectional view of the transmission mechanism (locally) shown in Fig. 7.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
Embodiment one
See Fig. 1 and Fig. 2, a kind of electric reciprocating saw, comprises casing 1, be positioned at the grip part 2 of casing 1 end, motor as power source is placed in casing 1, and the output both sides of motor are set side by side with the identical transmission mechanism of structure 3, and transmission mechanism 3 is connected with a reciprocating lever 4 respectively.
The output end of motor is provided with pinion 5, and its both sides are engaged with the gear wheel 31 of two transmission mechanisms 3 respectively, and thus, the rotation of rotor can drive pinion 5 to rotate, thus drives two gear wheels 31 to do the contrary rotation in direction.
Transmission mechanism 3 also comprises Oscillating lever bearing 32 and bent axle 33, Oscillating lever bearing 32 comprises fork 321, be positioned at the bearing outer ring 322 fixed with fork 321 below fork 321, and the bearing inner race 323 be placed in bearing outer ring 322, fork 321 and bearing outer ring 322 can one-body moldedly also can be two independently parts, bearing inner race 323 outer surface offers the trajectory 3236 of annular, for arranging ball 324, so that bearing outer ring 322 and bearing inner race 323 do relative motion, see Fig. 3-1 and Fig. 3-2.Bearing inner race 323 has the inner ring hole 3231 of inclination, between the central axis 3221 of bearing outer ring 322 and the central axis 3232 of inner ring hole 3231, angulation is the angle of α, the existence of this α angle is intended to the angle of inclination increasing bent axle 33, and the central axis of trajectory 3236 is consistent with the central axis 3221 of bearing outer ring 322.
Bent axle 33 comprises main shaft 331, one end of main shaft 331 is fixed on the center of gear wheel 31, rotation is driven by gear wheel 31, the other end of main shaft 331 is extended with main shaft 331 in the bent axle main body 332 tilted, the central axis 3311 of main shaft 331 consistent with the central axis 3221 of bearing outer ring 322 (when bearing outer ring 322 is positioned at initial position), and angulation is the angle of β between the central axis 3321 of bent axle main body 332, this β angle determines the size of the pendulum angle of fork 321, see Fig. 4-4.
Bent axle main body 332 is fixing through being inserted into coupling in crankshaft end cover 333 after inner ring hole 3231, the end face of crankshaft end cover 333 and this side end face adaptation of bearing inner race 323.The central axis of crankshaft end cover 333 is consistent with the central axis 3221 of bearing outer ring 322.
On the end face of main shaft 331, axially outstanding alignment pin 3312 is provided with bent axle main body 332 adjacent, therewith corresponding this side end face of bearing inner race 323 offers the stopper slot 3233 of the arc of circumference, the two ends of stopper slot 3233 have the first positioning step 3234 and the second positioning step 3235, respectively see Fig. 4-1.Thus, when reciprocating saw works, after bent axle main body 332 and bearing inner race 323 relatively rotate, the alignment pin 3312 of main shaft 331 can abut with the first positioning step 3234 or the second positioning step 3235, thus bent axle 33 can drive bearing inner race 323 to rotate thereupon.
Oscillating lever bearing 32 also comprises the adapter sleeve 325 be arranged on outside fork 321, and adapter sleeve 325 is flexibly connected with reciprocating lever 4 by connecting pin 326.Two reciprocating levers 4 be arranged in parallel, connect saw blade 7 respectively by fast clamp mechanism 6.
When rotor rotates, the pinion 5 of its output end drives gear wheel 31 to rotate, thus main shaft 331 rotates, because the alignment pin 3312 of main shaft 331 can abut with the first positioning step 3234 of bearing inner race 323 or the second positioning step 3235, thus bearing inner race 323 rotates thereupon.The setting of the inconsistent and ball 324 of two central axis due to bearing inner race 323 and bearing outer ring 322, make bearing outer ring 322 do the swing of fore-and-aft direction when bearing inner race 323 rotates, thus fork 321 drive reciprocating lever 4 to do the straight reciprocating motion of fore-and-aft direction.Gear wheel 31 due to two transmission mechanisms 3 lays respectively at the both sides of pinion 5, the relative motion that when namely two gear wheels 31 are same, intercropping direction is contrary, makes two reciprocating levers 4 do the contrary straight reciprocating motion in direction thus.
Owing to being provided with inner ring hole 3231, alignment pin 3312 and stopper slot 3233 that bearing inner race tilts, reciprocating saw of the present invention has two-pass, and its operation principle is as described below.See Fig. 4-1 to Fig. 4-5, as shown by arrows (counterclockwise), now, alignment pin 3312 abuts with the first positioning step 3234 rotation direction of main shaft 331, reciprocating saw is operated in the state of range, α angle now superposes with β angle, farthest increases the relative angle of inclination of bent axle main body 332, thus, fork 321 pendulum angle is forward alpha+beta, after main shaft 331 rotates 180 ° of C, fork 321 swings alpha+beta angle backward, moves back and forth with this, see Fig. 5-1 to Fig. 5-4, motor rotates backward, contrary when making the rotation direction of main shaft 331 and Long Distances, as shown by arrows (clockwise), due to inertia, the effects such as resistance, bent axle 33 and bearing inner race 323 relatively rotate, relative position between the two, angle changes, alignment pin 3312 turns to and abuts with the second positioning step 3235, reciprocating saw is operated in the state of little stroke, γ angle is formed between projection 3321 on the central axis A-A face of the projection 3232 ' on A-A face of the central axis of inner ring hole 3231 and bent axle main body 332, namely γ angle is the projection angle of angle α on A-A face, the angular range of γ is-α≤γ≤α, the pendulum angle of fork 321 is γ+β.
See Fig. 6, after the angle of inclination of bent axle main body 332 and the angle of inclination of bearing inner race 323 superpose, when γ value is-α, the pendulum angle of fork 321 is β-α, the minimum stroke that namely reciprocating saw work is desirable.
Get different values by the radian to stopper slot 3233, position, the value of different reciprocating saw Long Distances, little stroke can be made not identical, to meet the needs of real work.Namely during Long Distances, the pendulum angle of fork 321 is not necessarily alpha+beta, and during little stroke, the pendulum angle of fork 321 is not necessarily β-α yet, and Long Distances and little stroke are only comparatively speaking.
Embodiment two
See Fig. 7 and Fig. 8, the difference of itself and above-described embodiment is, transmission mechanism comprises forward and backward the first transmission mechanism 3 ' of connecting successively and the second transmission mechanism 3 "; to replace two independent transmission mechanisms 3 arranged; the first transmission mechanism 3 ' is connected to the first reciprocating lever 4 '; the second transmission mechanism 3 " be connected to the second reciprocating lever 4 ", the first reciprocating lever 4 ' and the second reciprocating lever 4 " be connected with saw blade respectively.First transmission mechanism 3 ' comprises the gear wheel 31 ' engaged with the pinion 5 of the output end of motor, with the first bent axle 33 ' that gear wheel 31 ' center is fixing, and is arranged on the first Oscillating lever bearing 32 ' of the first bent axle 33 ' periphery; Second transmission mechanism 33 " comprise the second bent axle 33 being connected to the first bent axle 33 ' ", and be arranged on the second bent axle 33 " the second Oscillating lever bearing 32 of periphery ".First bent axle 33 ' through the first Oscillating lever bearing 32 ' afterwards with the second bent axle 33 " be connected, the first bent axle 33 ' and the second bent axle 33 " also for being symmetrical arranged, namely angle of inclination is contrary.Second bent axle 33 ' is through the second Oscillating lever bearing 32 " after be inserted into crankshaft end cover 333 " in coupling fixing.
First Oscillating lever bearing 32 ' comprises the first fork 321 ' and is located at the clutch shaft bearing outer ring 322 ' fixing with the first fork 321 ' of the first fork 321 ' below, first fork 321 ' overcoat has the first adapter sleeve 325 ', the first adapter sleeve 325 ' to be connected to the first reciprocating lever 4 ' by the first connecting pin 326 '; Second Oscillating lever bearing 32 " comprise the second fork 321 " and be located at the second fork 321 " below with the second fork 321 " fixing the second bearing outer ring 322 ' ' second fork 321 " overcoat has the second adapter sleeve 325 ", the second adapter sleeve 325 " be connected to the second reciprocating lever 4 by the second connecting pin (not shown) ".Make the first fork 321 ' on the first Oscillating lever bearing 32 ' and the second Oscillating lever bearing 32 thus " on the second fork 321 " do the contrary swing in direction, thus two reciprocating levers 4 ', 4 " do the contrary straight reciprocating motion in direction.
Embodiment three
In the above embodiments one and embodiment two, reciprocating saw is under being operated in two-pass state, the difference of the present embodiment is, α angle between the central axis 3221 of bearing outer ring 322 and the central axis 3232 of inner ring hole 3231 is 0, namely bearing outer ring 322 and inner ring hole 3231 are coaxially arranged, and meanwhile, also eliminate the stopper slot that alignment pin in above-mentioned first embodiment on main shaft end face and bearing inner race match with alignment pin, namely now, reciprocating saw is operated in one-stroke state.
The foregoing is only the preferred embodiment of the present invention, it should be pointed out that for the ordinary skill in the art, not departing under principle prerequisite of the present invention, can also make various deformation and improvement, this also should be considered as protection scope of the present invention.
Claims (3)
1. an electric reciprocating saw, comprise casing and the motor as power source, described motor is connected by transmission mechanism and the reciprocating lever being fixed with saw blade, described transmission mechanism is by front, after the first transmission mechanism of connecting successively and the second transmission mechanism composition, described first transmission mechanism comprises the gear wheel linked with the output of described motor, with the first bent axle that described gear wheel center is fixing, and be arranged on the first Oscillating lever bearing of described first bent axle periphery, described second transmission mechanism comprises the second bent axle being connected to described first bent axle, and be arranged on the second Oscillating lever bearing of described second bent axle periphery, described first bent axle is contrary with described second bent axle angle of inclination, the described reciprocating lever being fixed with saw blade also has two, described first Oscillating lever bearing connects the first reciprocating lever, described second Oscillating lever bearing connects the second reciprocating lever, it is characterized in that,
Described first Oscillating lever bearing comprises the first fork, the clutch shaft bearing outer ring fixed with described first fork, and be placed in and can make the clutch shaft bearing inner ring of relative motion with described clutch shaft bearing outer ring in described clutch shaft bearing outer ring, described clutch shaft bearing inner ring has the first inner ring hole of inclination, described first bent axle comprises the first main shaft, one end and the described gear wheel of described first main shaft are fixed, the other end of described first main shaft is extended with described first main shaft in the first bent axle main body tilted, described first bent axle main body penetrates in described first inner ring hole, the end face of described first main shaft is provided with the first axially outstanding alignment pin with described first bent axle main body adjacent, the first stopper slot that described first alignment pin of the confession end face that described clutch shaft bearing inner ring is relative with described first main shaft offering circumferential arc slides, the two ends of described first stopper slot have first positioning step and the second positioning step that can abut with described first alignment pin,
Described second Oscillating lever bearing comprises the second fork, the second bearing outer ring fixed with described second fork, and be placed in and can make the second bearing inner race of relative motion with described second bearing outer ring in described second bearing outer ring, described second bearing inner race has the second inner ring hole of inclination, described second bent axle comprises the second main shaft, one end of described second main shaft is extended with described second main shaft in the second bent axle main body tilted, described second bent axle main body penetrates in described second inner ring hole, the end face of described second main shaft is provided with the second axially outstanding alignment pin with described second bent axle main body adjacent, the second stopper slot that described second alignment pin of the confession end face that described second bearing inner race is relative with described second main shaft offering circumferential arc slides, the two ends of described second stopper slot have the 3rd positioning step and the 4th positioning step that can abut with described second alignment pin.
2. electric reciprocating saw as claimed in claim 1, it is characterized in that, described first fork overcoat has the first adapter sleeve, and described first adapter sleeve is connected to described first reciprocating lever by the first connecting pin; Described second fork overcoat has the second adapter sleeve, and described second adapter sleeve is connected to described second reciprocating lever by the second connecting pin.
3. electric reciprocating saw as claimed in claim 1 or 2, it is characterized in that, the output end of described motor is provided with pinion, and described pinion engages with described gear wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325320.5A CN102794503B (en) | 2012-09-05 | 2012-09-05 | Electric reciprocating saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210325320.5A CN102794503B (en) | 2012-09-05 | 2012-09-05 | Electric reciprocating saw |
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| Publication Number | Publication Date |
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| CN102794503A CN102794503A (en) | 2012-11-28 |
| CN102794503B true CN102794503B (en) | 2014-12-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210325320.5A Expired - Fee Related CN102794503B (en) | 2012-09-05 | 2012-09-05 | Electric reciprocating saw |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008780A (en) * | 2012-12-10 | 2013-04-03 | 常熟建工建设集团有限公司苏州分公司 | Construction electric saw |
| CN104117728B (en) * | 2013-04-27 | 2018-02-02 | 博世电动工具（中国）有限公司 | Reciprocally swinging is sawed |
| CN104339031B (en) * | 2013-08-02 | 2018-08-21 | 博世电动工具（中国）有限公司 | Reciprocating drive mechanism and the electric tool for including the reciprocating drive mechanism |
| CN107838880B (en) * | 2016-09-21 | 2023-11-07 | 苏州宝时得电动工具有限公司 | Reciprocating power tool |
| CN106737450B (en) * | 2016-11-23 | 2023-12-29 | 浙江亚特电器股份有限公司 | Multi-head electric tool |
| CN112970451B (en) * | 2019-12-02 | 2024-01-30 | 创科无线普通合伙 | Electric pruning machine |
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| DE2613092A1 (en) * | 1975-04-25 | 1976-11-04 | Milwaukee Electric Tool Corp | Vibration damper and heat sink for reciprocating saw - has axially and radially movable carrier guide controlled by eccentric |
| EP0267312B1 (en) * | 1986-11-11 | 1991-08-28 | Black & Decker Inc. | Power driven saw, in particular electrically powered saw |
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| CN202192327U (en) * | 2011-03-11 | 2012-04-18 | 南京德朔实业有限公司 | Sawing tool |
| CN202317249U (en) * | 2011-09-09 | 2012-07-11 | 宁波黑松工具有限公司 | Novel scroll saw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8826547B2 (en) * | 2008-11-25 | 2014-09-09 | Robert Bosch Gmbh | Impact absorption drive mechanism for a reciprocating tool |
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- 2012-09-05 CN CN201210325320.5A patent/CN102794503B/en not_active Expired - Fee Related
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|---|---|---|---|---|
| DE2613092A1 (en) * | 1975-04-25 | 1976-11-04 | Milwaukee Electric Tool Corp | Vibration damper and heat sink for reciprocating saw - has axially and radially movable carrier guide controlled by eccentric |
| EP0267312B1 (en) * | 1986-11-11 | 1991-08-28 | Black & Decker Inc. | Power driven saw, in particular electrically powered saw |
| CN2582802Y (en) * | 2002-11-06 | 2003-10-29 | 林海涛 | Reciprocating saw driving device |
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| CN202824851U (en) * | 2012-09-05 | 2013-03-27 | 宁波黑松工具有限公司 | Electric reciprocating saw |
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