CN101758294B - Reciprocating saw - Google Patents
Reciprocating saw Download PDFInfo
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- CN101758294B CN101758294B CN200910126153XA CN200910126153A CN101758294B CN 101758294 B CN101758294 B CN 101758294B CN 200910126153X A CN200910126153X A CN 200910126153XA CN 200910126153 A CN200910126153 A CN 200910126153A CN 101758294 B CN101758294 B CN 101758294B
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- anchor clamps
- extension rod
- reciprocating saw
- cam
- clutch
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Abstract
The invention relates to a reciprocating saw, which includes a shell, a motor, a saw blade, a main handle and a clamp. The shell is provided with a front end and a back end; the motor is arranged in the shell; the saw blade extends out of the front end of the shell, and is driven by the motor to implement reciprocating cutting actions basically along the front and back directions relative to the shell; the main handle is arranged at the back end of the shell and used for being held during cutting; the clamp is arranged near the front end of the shell and can pivot relatively to the shell along a pivotal axis; the clamp includes a clamp frame, a splint which is used for clamping workpieces, connected with the clamp frame and is supported by the clamp frame, an auxiliary handle which is provided with a holding part and an extension rod; one end of the extension rod is installed on the clamp and the other end of the extension rod is connected with the holding part; and the clamp is provided with a clutch so as to selectively transfer the motion of the holding part.
Description
Technical field
The present invention relates to a kind of reciprocating saw.Particularly relate to a kind of reciprocating saw with anchor clamps.
Background technology
Weak points such as reciprocating saw is the common tool of workpiece such as incising pipes, timber, yet it is bigger directly to use the reciprocating saw cut workpiece usually to exist vibrations, and cutting accuracy is low.Therefore, the reciprocating saw of anchor clamps has appearred having, like U.S. Pat 5; 611,146 have promptly disclosed a kind of like this reciprocating saw, the pivotable anchor clamps that are equipped with of its housing front end; The tightness of anchor clamps clamping plate can be regulated through screw rod; To clamp the sized different workpiece, after the clamp workpiece, rotate the reciprocating saw cut workpiece with respect to anchor clamps again.Because weak points such as the connection of the pivot between anchor clamps and the reciprocating saw, the reciprocating saw of this moment only can be cut on the direction of confirming to be cut of workpiece, and the vibrations when so just having solved the reciprocating saw cut workpiece are bigger, and precision is lower.
Yet existing reciprocating saw and chucking appliance system thereof still exist tangible drawback.Such as, the anchor clamps of reciprocating saw only are the relative position relations of having fixed between anchor clamps and the workpiece, the position of workpiece itself does not receive the influence of reciprocating saw and anchor clamps.Like this, often just need vice be set in addition outside reciprocating saw and anchor clamps, devices such as workbench fix the position of workpiece, just can carry out stable cutting then.And vice etc. devices is bigger usually, be inconvenient to move, incompatible narrower workplace, and this has brought a lot of limitations with regard to the cutting work to reciprocating saw.For another example; Existing reciprocating saw anchor clamps use screw rod to tighten clamping plate usually; Whether the user often difficult confirming clamping plate clamping enough tight, and if clamping pine, cutting meeting instability even bring danger; If the clamping tension, difficulty relatively in the time of will causing cutting to unclamp clamping plate after finishing.
Therefore, need a kind of reciprocating saw and anchor clamps, can overcome the drawback of existing reciprocating saw clamp plate system, need not fix the location of workpiece, and can help the user to confirm that clamping plate are enough tight, need not continue to tighten clamping plate by extra vise assembly.
Summary of the invention
The object of the present invention is to provide a kind of can the clamping workpiece, and reciprocating saw, especially a kind of reciprocating saw that has anchor clamps with clamping elasticity control structure.
The invention provides a kind of reciprocating saw, it comprises: housing, and it has a front end and a rear end; Motor is located in the housing; Saw blade extends the front end of housing, and said saw blade is driven by said motor and carries out reciprocal cutting action along fore-and-aft direction basically with respect to housing; Main handle is arranged at the rear end of housing, is used for when cutting operation, being gripped; Anchor clamps near the front end setting of housing, and can pivot with respect to housing around a pivotal axis; Said anchor clamps comprise: the anchor clamps pedestal; Clamping plate are used for the clamping workpiece, connect said anchor clamps pedestal and by its support; Assist handle, it has a grip part and an extension rod, and an end of said extension rod is installed on the said anchor clamps, and the other end is connected with said grip part, and said anchor clamps are provided with clutch, optionally to transmit the motion of said grip part.
Further, be provided with clutch between said grip part and the said clamping plate, be used for optionally the motion of said grip part is delivered to said clamping plate, to regulate the clamping plate opening and closing.
Further; Said extension rod connects the clamping plate on the said anchor clamps; And extension rod is provided with screw thread, and said anchor clamps are provided with the nut that matches, and the grip part drives the extension rod rotation and moves to promote the clamping plate opening and closing along the spiral linearity of its axial direction around rotatablely moving of himself longitudinal axis.
Further, said grip part sky is enclosed within on the said extension rod, is provided with clutch therebetween, and said clutch comprises: the clutch seat, and fixedly sleeved in extension rod, said clutch seat is provided with a plurality of slideways; A plurality of circular holes are located on the said grip part and are extended and said a plurality of slideway is corresponding is provided with along the axial direction of grip part; Be placed in a plurality of springs and a plurality of ball in said each circular hole respectively; Said ball is resisted against in each corresponding slideway by the spring compressing; And can move on to another slideway from a slideway, with the said extension rod that rotates to of the said grip part of selectable transmission.
Further; Said slideway extends along the radial direction of clutch seat; The slideway both sides are respectively first slope and second slope; The gradient of said first slope is greater than the gradient of said second slope, and said ball shifts out this slideway and gets into this slideway by another slideway first slope from second slope of a slideway.
Further; Said extension rod is provided with screw thread; Said anchor clamps are provided with the nut that matches; Said nut is removable to be provided with clutch with the screw thread on the said assist handle of interlock optionally between said grip part and the said nut, is used for optionally the motion of said grip part is delivered to said nut.
Further; Said clutch comprises: cam; In the form of a ring and be socketed on the extension rod, optionally move said nut or break away from the screw thread on the said extension rod, be interval with optionally first flange and second flange of the said nut of butt on the said cam; Pivoted housing is located between said cam and the said extension rod, axially the connection extension rod of slip; A plurality of ball hole, spring and balls that match; Said a plurality of balls hole is located at respectively on the contact-making surface of pivoted housing and cam; Said a plurality of spring and ball are located in described a plurality of balls hole; Said ball is resisted against in the ball hole by the spring compressing, and can move on to another ball hole from a ball hole, with the cam that rotatablely moves of the said pivoted housing of selectable transmission.
Further, said clamping plate comprise train wheel bridge and lower plate, the connection that can be pivoted relative to each other through a clamping plate pivot between said train wheel bridge and the lower plate.
Further, the said housing of the dismountable connection of said anchor clamps.
Compared with prior art, the invention has the beneficial effects as follows: through Clutch Control the clamping elasticity of clamping plate, avoided clamping to cross the drawback of pine or tension.
Description of drawings
Fig. 1 is the overall schematic of preferred implementation of the present invention.
Fig. 2 is the anchor clamps sketch map of preferred implementation of the present invention.
Fig. 3 is the stereogram of the nut of preferred implementation of the present invention.
Fig. 4 is the sketch map of the cam clutch of preferred implementation of the present invention.
Fig. 5 is the stereogram of the cam of preferred implementation of the present invention.
Fig. 6 is the stereogram of another angle of the cam of preferred implementation of the present invention.
Fig. 7 is the sketch map of the anchor clamps clutch of preferred implementation of the present invention.
Fig. 8 is the sketch map of another angle of the anchor clamps clutch of preferred implementation of the present invention.
Fig. 9 is the sketch map of the clutch seat of preferred implementation of the present invention.
Figure 10 a to Figure 10 c is the cutting mode sketch map of preferred implementation of the present invention.
10 anchor clamps, 162 train wheel bridges, 21 handles
11 anchor clamps handles, 163 clamping plate pivots, 22 housings
111 circular holes, 165 slide bars, 23 saw blades
112 sheaths, 167 first elongated slots, 31 cam clutch
113 second springs, 17 pivoted housings, 32 anchor clamps clutches
115 second balls, 171 boss, 321 clutch seats
12 extension rods, 172 anchor rings, 322 slideways
123 extension rod elongated slots 173 fall into place's 325 first slopes
121 linked blocks, 174 slide rails, 327 second slopes
14 anchor clamps pedestals, 175 first springs, 40 pivotal axis
141 sidewalls, 176 first balls, 401 pivot main shafts
142 rear walls, 177 through holes, 402 axle sleeves
147 second elongated slots, 18 cams, 41 anchor clamps ends
15 nuts, 181 first balls are cheated 42 insertion ends
151 torsion springs, 183 cam rings, 421 ends
153 connecting rods, 185 first flanges, 422 scrobicular rings
155 nut handles, 187 second flanges, 44 flutings
157 nut bodies, 188 high levels, 441 briquettings
158 inwalls, 189 low level places, 442 briquetting torsion springs
16 clamping plate, 20 reciprocating saws, the 443 briquetting tips
161 lower plates, 5 motors
The specific embodiment
The present invention has disclosed a kind of reciprocating saw, especially a kind of reciprocating saw with anchor clamps.
Fig. 1 to Figure 10 has disclosed a kind of preferred implementation of the present invention; Like Fig. 1; The same with common reciprocating saw, the reciprocating saw 20 in this preferred implementation has a housing 22, and two and half housings that housing 22 is mutually symmetrical by outer surface engage and form; The faying face of two and half housings is the middle axial plane of housing 22, and definition axis Z is perpendicular to the middle axial plane of housing 22.Be provided with motor 5 (referring to Figure 11 b) in the housing 22, motor 5 is connected with reciprocal axle (figure does not show), and back and forth axle has the free end away from motor 5, is connected with saw blade 23 on it.Motor 5 is suitable for driving reciprocal saw blade 23 that moves back and forth and drive on it and carries out reciprocal cutting action.The reciprocal cut direction of definition saw blade 23 is the direction of axis X.For describing conveniently, existing being the place ahead of reciprocating saw along the direction of axis X to figure one left side, being the rear of reciprocating saw along the direction of axis X to figure one right side.Then the rear end of housing 22 is provided with the main handle of reciprocating saw 20 in the present embodiment: reciprocating saw handle 21, aforesaid saw blade 23 is positioned at the front end of reciprocating saw 20.
Like Fig. 1, anchor clamps 10 are dismountable matched with reciprocating saw 20 through anchor clamps pivot 40, and its concrete connected mode will detail at the back literary composition.Said anchor clamps pivot 40 is provided with along axis Z direction, can pivot with respect to the housing 22 of reciprocating saw 20 through pivotal axis 40 anchor clamps 10.
Like Fig. 2; Anchor clamps 10 comprise the clamping plate cocking mechanism of the anchor clamps pedestal 14 that is positioned at anchor clamps 10 front ends, the clamping plate 16 of being located at anchor clamps pedestal 14 front ends, connecting cleat 16 and anchor clamps pedestal 14; Be extension rod 12, be located at the screw rod regulating system on the jig frame 14 and be positioned at the terminal grip part of extension rod 12; It is anchor clamps handle 11; Said extension rod 12 and said anchor clamps handle 11 have been combined to form the assist handle of reciprocating saw 20, and like Figure 11 b, the end of assist handle extends rearward to the position above the rear end of motor 5.Be described in detail the structure of the anchor clamps 10 in this preferred implementation below.
Anchor clamps pedestal 14 comprises the opposing parallel setting, extends and link together to anchor clamps 10 the place aheads are inboard perpendicular to 141, two sidewalls 141 of two sidewalls of axis Z, forms the lower plate 161 of clamping plate 16; Clamping plate 16 also comprise a train wheel bridge 162; Train wheel bridge 162 is through a clamping plate pivot 163 pivotable being installed on the anchor clamps pedestal 14; Train wheel bridge 162 can pivot and presses close to and away from lower plate 161, with the workpiece of clamping all size specification around clamping plate pivot 163.Train wheel bridge 162 is bending shape with lower plate 161; At place, its inflection point each other at a distance of farthest, at its initiating terminal and end each other at a distance of nearer; Like this, the bending angle of himself guides to it separately near the crooked place and not outwards slippage with workpiece when train wheel bridge 162 and lower plate 161 clamping workpiece.In this preferred embodiment; The width of lower plate 161 wants big than the width of train wheel bridge 162; And its end away from anchor clamps pedestal 14 is I-shaped opening; This opening can hold the end away from anchor clamps pedestal 14 of train wheel bridge 162, and the applying degree that this design makes train wheel bridge 162 and lower plate 161 to reach is higher, can grasp as far as possible little workpiece.
The rear end of anchor clamps pedestal 14 is connected with rear wall 142, and rear wall 142 is located between two sidewalls 141 also vertical with them.Aforesaid extension rod 12 perpendicular to and pass rear wall 142; Have a top and an end; Its top is connected with train wheel bridge 162 through a slide bar 165; Its end extends to reciprocating saw 20 rears, and extension rod 12 be set up only can rotate and on himself longitudinal axis, move around, its concrete structure literary composition of seeing after around himself longitudinal axis.
The regulating system of extension rod 12 is detailed below.
Like Fig. 2 and Fig. 3, the front end of extension rod 12 is provided with screw thread, and anchor clamps 10 are provided with the nut 15 that matches with it; Nut 15 has a nut handle 155 and nut body 157; It is half-cylindrical that the inboard of nut body 157 is, and forms on the inboard inwall 158 and the screw thread of the semi-circumference that the threaded portion of extension rod 12 matches, and connecting rod 153 passes on two sidewalls 141 that nut handle 155 is installed in anchor clamps pedestal 14; Also be provided with torsion spring 151 on the connecting rod 153; One end of torsion spring 151 is connected in sidewall 141, one ends and is connected on the nut 15, and it is suitable for nut main body 157 is compressed to extension rod 12; Make extension rod 12 only can be in a spiral manner on himself longitudinal axis forward-reverse, control clamping plate 16 compress or unclamp workpiece.
The biasing force that nut 15 can overcome torsion spring 151 leaves extension rod 12, and make threaded portion and the nut 15 of extension rod 12 break away from and cooperate, and can be with the mode of direct linear movement forward-reverse on himself longitudinal axis, positioning splint 16 fast.Concrete implementation is following:
Like Fig. 2 and Fig. 4, extension rod 12 is provided with an extension rod elongated slot 123 that is provided with along extension rod 12 axis directions, and extension rod 12 is connected with that interlock determines 121, pivoted housing 17 and cam 18.Pivoted housing 17 is arranged in the rear wall 142 with cam 18.Pivoted housing 17 general shape are the cylinder of hollow, and extension rod 12 wears wherein.Through hole 177 of tool on the side of pivoted housing 17; And linked block 121 is installed in through hole 177 and the extension rod elongated slot 123; Like this; Extension rod 12 can be in the length restriction scope of extension rod elongated slot 123 with respect to pivoted housing 17 slippage before and after the axis X direction, and the rotation of extension rod 12 will drive pivoted housing 17 and rotate together.
Like Fig. 4, Fig. 5 and Fig. 6, cam 18 roughly is the cylindrical shape of hollow, and its front end has a cam ring 183.The hollow space of cam 18 can hold pivoted housing 17; And be provided with cam clutch 31 between the front end of the hollow space of the front end of pivoted housing 17 and cam 18; Specifically being provided with as follows of cam clutch 31: the front end of pivoted housing 17 has a boss 171; Form an anchor ring 172 between the main body of boss 171 and pivoted housing 17, be evenly distributed with four ball holes on the anchor ring 172, promptly recess 173; Recess 173 extends four slide rails 174 on the wall of boss 171; Four first springs 175 and four first balls 176 are installed on described recess 173 and the slide rail 174, and also corresponding 4 first balls that are provided with cheat 181 on the place ahead end face of the hollow space of cam 18, to hold said first ball 176.When described cam clutch 31 assembles up; First ball 176 is pressed in first ball hole 181 along slide rail 174 by first spring 175, and the gradient in the biasing force of its first spring 175 and first ball hole 181 makes cam clutch 31 have a border torque value through setting; The moment of torsion that receives when cam 18 is during less than this border torque value; The rotation of pivoted housing 17 can be delivered on the cam 18 through first ball 176, drives cam 18 rotations, and the moment of torsion that receives when cam 18 is during greater than this border torque value; First ball 176 can't drive cam 18 rotation, but go round and begin again cheat 181 slippages to another first ball hole 181 from one first ball.The border torque value of cam clutch 31 imposes on the torque value of nut 15 greater than torsion spring 151.
Can know that from the above mentioned cam 18 can be extended bar 12 and drive pivot, its pivotal axis is the axis of extension rod 12.The front end of cam 18 is cam rings 183, and it is between extension rod 12 and nut handle 155.It is centrifugal circular-arc that the part of cam ring 183 is; The two ends of this part form apart from cam 18 pivotal axis high level 188 farthest with have the low level place 189 nearest apart from cam 18 pivotal axis; And cam ring outwards protrudes respectively on the both sides of this part; Form two flanges, wherein the edge of high level 188 is first flange 185, and the edge at low level place 189 is second flange 187.
Because the centrifugal circular arc partial-length of cam ring 183 is greater than the width of nut handle 155; Therefore; Aforesaid high level 188 can not be simultaneously over against nut handle 155 with low level place 189; Be the pivot of cam 18 optionally make high level 188 and low level place 189 one of them over against nut handle 155, another is offset to a side of nut handle 155.And during 188 pairs of nut handles 155 of said high level, nut handle 155 is by its jack-up, and the biasing force that makes nut 15 overcome torsion spring 151 pivots around connecting rod 153, and the threaded portion of nut body 157 breaks away from the threaded portion of extension rod 12 and cooperates.At this moment, screw rod 12 is suitable for seesawing with the mode of direct slippage.Said low level place 189 is during over against nut handle 155, and nut 15 is by torsion spring 151 compressings, make nut body 157 threaded portion cooperate with the threaded portion of extension rod 12.At this moment, screw rod 12 is suitable for seesawing with the mode that spiral moves.
In this preferred implementation, extension rod 12 possibly need to continue a plurality of cycle rotations to arrive suitable position in the axial direction, and at this moment, cam 15 must keep low level place 189 over against nut handle 155.Yet, know that by aforementioned the spiral of extension rod 12 moves the rotation that the rotation that brings can cause cam 15; Therefore; Need to realize that extension rod 12 optionally be delivered to cam 15 with rotation as the case may be, when the low level place 189 of cam during over against nut handle 155, being rotated in the forward of extension rod 12 no longer is passed to cam 15; When the high level 187 of cam during over against nut handle 155, the reverse rotation of extension rod 12 no longer is passed to cam 15.It realizes that through aforesaid cam clutch 31 concrete mode is following:
The low level place 189 of cam ring 183 is during over against nut handle 155, and nut body 157 compresses extension rod 12, and second flange 187 is resisted against on the nut 15, stops cam ring 183 to continue forward rotation.Because the border torque value of cam clutch 31 is rotated further the torque value that needs less than cam ring 183; So; When extension rod 12 continues forward rotation; What first ball 176 went round and began again slides into another first ball hole 186 from one first ball hole 186, and it no longer drives cam ring 183 and is rotated further, and extension rod 12 itself then can continue spirals.
Still when the low level place 189 of cam ring 183 during over against nut handle 155; The border torque value of cam clutch 31 imposes on the torque value of nut 15 greater than torsion spring 151; Extension rod 12 can drive cam ring 183 backward rotation through cam clutch 31; Leave nut handle 155 up to low plane 189, high plane 188 is resisted against on the nut 15 up to first flange 185 over against nut handle 155.In this process, nut handle 155 is made nut 15 pivot around connecting rod 153 and leaves extension rod 12 by cam ring 183 jack-up.What stock 12, the first balls 176 went round and began again if continuation this moment is oppositely returned slides into another first ball hole 186 from one first ball hole 186, no longer drives cam ring 183 backward rotation.Because extension rod 12 has not had the restriction of nut 15, extension rod 12 can be located the position of extension rod 12 and clamping plate 16 fast directly along extension rod 12 longitudinal axis straight line slippages back and forth.
Similarly, when the high level 188 of cam ring 183 during over against nut handle 155, first flange 185 is resisted against on the nut 15, stops cam ring 183 reverse rotations.The reverse rotation of extension rod 12 causes first ball 176 between first ball hole 186, to slide, and its rotation can't drive cam 18 with its rotation.Yet extension rod 12 can drive cam ring 183 forward rotation through cam clutch 31 and be resisted against on the nut 15 over against nut handle 155, the second flanges 187 up to low level place 189.
Like Fig. 7, Fig. 8 and Fig. 9, the end of extension rod 12 is equipped with an anchor clamps handle 11.
Anchor clamps handle 11 skies are enclosed within on the extension rod 12, and can rotate with respect to extension rod 12, can not be with respect to extension rod 12 axial slips.Be provided with an anchor clamps clutch 32 between anchor clamps handle 11 and the extension rod 12; Like Fig. 7 and Fig. 8, anchor clamps clutch 32 comprises: be uniformly distributed in six circular holes 111 on anchor clamps handle 11 front end faces, said circular hole 111 extends along the axial direction of anchor clamps handle 11; With the sheath 112 that is contained in each circular hole 111; Can be contained in second spring 113 in the sheath 112, be placed in second ball 115 on second spring 113 and be socketed on the extension rod 12 and and fix with respect to extension rod 12; The clutch seat 321 of abut against clip handle 11 front ends; And evenly being arranged on the clutch seat 321 and six circular hole 111 corresponding six slideways 322 that are provided with, said slideway 322 extends along the radial direction of clutch seat 321.The both sides of each slideway 322 are respectively first slope 325 and second slope 327; First slope 325 of each slideway 322 closes on second slope 327 of adjacent slideway 322 respectively; Join end to end so in regular turn; And the gradient of first slope 325 is greater than the gradient of second slope 327.
When assembling, six sheaths 112 that are arranged in six circular holes 111 are accommodated one second spring 113 and second ball 115 separately, and second spring 113 is oppressed second ball 115 against being contained in the slideway 322.Like this, in certain torque range, rotary clamp handle 11 will drive extension rod 12 servo-actuateds; Yet; The moment of torsion of its rotation of prevention that extension rod 12 receives is during greater than the border moment of torsion of anchor clamps clutch 32, and second ball 115 will overcome the power of second spring 113, break away from slideway 322 originally along first slope 325 or 327 walkings of second slope; Enter into adjacent slideway 322 then, so go round and begin again.
Definition is a clockwise direction like the direction of the arrow A among Fig. 7 and Fig. 9; Because the gradient of first slope 325 is greater than the gradient of second slope 327, so the border moment of torsion of anchor clamps handle 11 anchor clamps clutch 32 when rotating along clockwise direction is less than the border moment of torsion of anchor clamps clutch 32 when counterclockwise rotating.
Through foregoing design, the operator can be through anchor clamps handle 11 convenient and accurate alignment jigs 10.
Operator's rotatable clamp handle 11; Drive extension rod 12 rotations through anchor clamps clutch 32; Extension rod 12 drives cam 18 rotations through cam clutch 31; Selectivity makes nut 15 compress or leave extension rod 12, has received greater than the opposing of the border moment of torsion of anchor clamps clutch 32 till it continues moment of torsion of rotation up to extension rod 12.
In the actual operation of operator, promptly be presented as the workflow of following a kind of optimization:
The operator moves behind the drive slide bar 165 at first through anchor clamps handle 11 pulled backwards extension rods 12, and then drives train wheel bridge 162 to the direction pivot away from lower plate 161; Opening up to clamping plate 16 magnifies wide above the footpath of workpiece; Make workpiece then between train wheel bridge 162 and lower plate 161, promote extension rod 12 forward through anchor clamps handle 11 again, drive slide bar 165 reaches; And then drive train wheel bridge 162 to direction pivot near lower plate 161; Up to clamping plate 16 butt workpiece, the anchor clamps handle 11 that turns clockwise then drives extension rod 12 through anchor clamps clutch 32 with cam clutch 31 and clockwise rotates with cam 18; The low plane 189 that makes cam 18 is over against nut 15, and torsion spring 151 compresses nut 15 to extension rod 12; Extension rod 12 advances in a spiral manner then, further makes train wheel bridge 162 near lower plate 161, further clamping work pieces, and at this moment, cam clutch 31 no longer transmits and rotates to cam 18; During to the enough clamping work pieces of clamping plate 16; The border moment of torsion of anchor clamps clutch 32 when anchor clamps handle 11 turns clockwise can't continue to force train wheel bridge 162 near lower plate 161; Extension rod 12 is no longer followed 11 rotations of anchor clamps handle, anchor clamps handle 11 beginnings slipping on extension rod 12, and this moment, the operator can confirm that clamping plate 16 are enough tight; No longer the rolling clamp handle 11, and begin cutting work.
After cutting is accomplished, the border moment of torsion when turning clockwise greater than anchor clamps handle 11 owing to the border moment of torsion of anchor clamps clutch 32 when anchor clamps handle 11 is rotated counterclockwise, therefore; The operator is rotated counterclockwise anchor clamps handle 11, can drive extension rod 12 rotations through anchor clamps clutch 32, unclamps the clamping plate 16 that tightened just now smoothly; Extension rod 12 drives cam 18 rotations through cam clutch 31 simultaneously; Over against bolt and nut 15, and make nut 15 leave extension rod 12 up to the high plane 188 of cam 18, then; The operator can move through anchor clamps handle 11 direct pull extension rods 12 backward, up to unclamping workpiece and can taking off anchor clamps 10 from workpiece.Like this, just accomplished once from the clamping work pieces to the cut workpiece again to the overall process of unclamping workpiece, in the whole process, the operator only need all that chucking operation handle 11 can accomplish anchor clamps 10 all control, quick and stable.
The installation of anchor clamps 10 and reciprocating saw 20 is detailed below and is used mode.
Like Fig. 1 and Fig. 2, anchor clamps pivot 40 passes the housing 22 forward parts of leaning on rear section and reciprocating saw 20 of the clamp base 14 of anchor clamps 10 along axis Z direction, with anchor clamps 10 and reciprocating saw 20 pivotable linking together.Anchor clamps pivot 40 comprises the pivot main shaft 401 and dismountable pivot main shaft 401 that is connected that is connected in anchor clamps 10; And be suitable for being connected in the axle sleeve 402 of reciprocating saw 20, pivot main shaft 401 comprises the anchor clamps end 41 of jockey 10 and the insertion end 42 of extending from anchor clamps end 41.Insertion end 42 can be inserted in the axle sleeve 402, and the end 421 of insertion end 42 is tapered, and a scrobicular ring 422 is near terminal 421; Cooperate with it; The main body hollow of axle sleeve 402 is to hold insertion end 42; And the end of axle sleeve 402 has 44 and briquettings 441 of a fluting; Briquetting 441 pivotable being pressed to by briquetting torsion spring 441 slot 44, and insertion end 42 can be inserted end 421 jack-up briquettings 441 continued of axle sleeve 402, its taper and go deep into axle sleeve 402, and briquetting 441 is embedded in the scrobicular ring 422 then; Locking pivot main shaft 401 and axle sleeve 402 mutual motion in the axial direction are with anchor clamps 10 and reciprocating saw 20 pivotable linking together.During dismounting, the biasing force that only need overcome briquetting torsion spring 441 is stirred briquetting 441, away from scrobicular ring 422, can extract insertion end 42, and anchor clamps 10 are separated with reciprocating saw 20.Nature, detachable and the embodiment jockey 10 that can pivot each other and reciprocating saw 20 is varied, with a pivotal axis jockey 10 and reciprocating saw 20 etc., be not limited to mode described herein like direct use screw nut system.
Like this, anchor clamps 10 dismountable being installed on the reciprocating saw 20 need not used the occasion of anchor clamps 10 at some, can anchor clamps 10 be disassembled, and use reciprocating saw 20 separately.
In this preferred implementation; Extension rod 12 extends to the direction away from anchor clamps pedestal 14; Anchor clamps handle 11 is located at the end of extension rod 12; Anchor clamps handle 11 residing positions are near the rear end of reciprocating saw 20, and its distance to anchor clamps pivot 40 roughly approaches the distance of reciprocating saw handle 21 to anchor clamps pivot 40.
Like Figure 10 a to 10c; The anchor clamps handle 11 that is provided with like this provides a kind of not to be needed by other workpiece fixed mechanism fixation workpieces; The reciprocating saw 20 of bimanualness and the method for using of anchor clamps 10 thereof; The operator at first uses anchor clamps 10 to grip workpiece when cut workpiece, and the relative position of workpiece and anchor clamps 10 is fixed; Then, hold anchor clamps handle 11 with one, with stationary fixture 10 positions, and fixation workpiece position thus, hold reciprocating saw handle 21 with another, bimanualness anchor clamps handle 11 and reciprocating saw handle 21 are around anchor clamps pivot 40 relative motion cut workpiece.Like this, do not need by extra instrument fixation workpieces such as vice, promptly available reciprocating saw cuts workpiece, and is convenient and swift.
In this preferred implementation; When anchor clamps 10 are in lower plate and open with fully closed centre position fully; The distance of the end of anchor clamps handle to the handle 21 of the distance of pivotal axis 40 and reciprocating saw 20 to pivotal axis 40 be (referring to Figure 11 b) about equally; This moment, it was the most comfortable adopting method of operation in operation reciprocating saw 20 of the present invention and anchor clamps 10 thereof for the operator.Yet, the length of variation anchor clamps handle in certain scope, it still is comfortable adopting method of operation in operation reciprocating saw 20 of the present invention and anchor clamps 10 thereof.
Below narration is respectively three kinds of embodiments of the present invention, and wherein the length of anchor clamps handle 11 increases successively.
In first kind of embodiment, when anchor clamps 10 were in clamping plate 16 and open with fully closed centre position fully, the ratio of the end of anchor clamps handle 11 to the handle 21 of the distance of pivotal axis 40 and reciprocating saw 20 to the distance of pivotal axis 40 was 0.7.This moment, the operation of reciprocating saw 20 and anchor clamps 10 thereof still was comfortable.
In second kind of embodiment, when anchor clamps 10 were in clamping plate 16 and open with fully closed centre position fully, the ratio of the end of anchor clamps handle 11 to the handle 21 of the distance of pivotal axis 40 and reciprocating saw 20 to the distance of pivotal axis 40 was 1.This moment, the operation of reciprocating saw 20 and anchor clamps 10 thereof was the most comfortable.This kind embodiment is aforesaid preferred implementation of the present invention.
In the third embodiment, when anchor clamps 10 were in clamping plate 16 and open with fully closed centre position fully, the ratio of the end of anchor clamps handle 11 to the handle 21 of the distance of pivotal axis 40 and reciprocating saw 20 to the distance of pivotal axis 40 was 1.4.This moment, the operation of reciprocating saw 20 and anchor clamps 10 thereof still was comfortable.
Nature; When anchor clamps 10 are in clamping plate 16 and open with fully closed centre position fully; The ratio of the end of anchor clamps handle 11 to the handle 21 of the distance of pivotal axis 40 and reciprocating saw 20 to the distance of pivotal axis 40 is between 0.7 between 1.4 the time; It all is comfortable adopting method of operation in operation reciprocating saw 20 of the present invention and anchor clamps 10 thereof, all belongs to overall conception of the present invention.
The present invention still has multiple concrete embodiment.All employings are equal to replacement or equivalent transformation and all technical schemes of forming all drop within the scope of requirement protection of the present invention.
Claims (9)
1. a reciprocating saw (20), it comprises:
Housing (22), it has a front end and a rear end;
Motor (5) is located in the housing (22);
Saw blade (23) extends the front end of housing (22), and said saw blade (23) is driven by said motor (5) and carries out reciprocal cutting action along fore-and-aft direction basically with respect to housing (22);
Main handle (21) is arranged at the rear end of housing (22), is used for when cutting operation, being gripped;
Anchor clamps (10) near the front end setting of housing (22), and can pivot with respect to housing (22) around a pivotal axis (40);
Said anchor clamps (10) comprising:
Anchor clamps pedestal (14);
Clamping plate (16) are used for the clamping workpiece, connect said anchor clamps pedestal (14) and by its support;
Assist handle (11,12), it has a grip part (11) and an extension rod (12), and an end of said extension rod (12) is installed on the said anchor clamps (10), and the other end is connected with said grip part (11), it is characterized in that:
Said anchor clamps (10) are provided with clutch (31,32), optionally to transmit the motion of said grip part (11).
2. reciprocating saw according to claim 1 (20); It is characterized in that: said clutch (31; 32) comprise the anchor clamps clutch of being located between said grip part (11) and the said clamping plate (16) (32); Be used for optionally the motion of said grip part (11) is delivered to said clamping plate (16), to regulate clamping plate (16) opening and closing.
3. reciprocating saw according to claim 2 (20); It is characterized in that: said extension rod (12) connects the clamping plate (16) on the said anchor clamps (10); And extension rod (12) is provided with screw thread; Said anchor clamps (10) are provided with the nut (15) that matches, and grip part (11) drive extension rod (12) rotation and move to promote clamping plate (16) opening and closing along the spiral linearity of its axial direction around rotatablely moving of himself longitudinal axis.
4. reciprocating saw according to claim 3 (20); It is characterized in that: said anchor clamps clutch (32) is located between said grip part (11) and the said extension rod (12); Comprise: clutch seat (321); Fixedly sleeved in extension rod (12), said clutch seat (321) is provided with a plurality of slideways (322); A plurality of circular holes (111) are located at that said grip part (11) is gone up and the axial direction of (11) extends and said a plurality of slideway (322) is corresponding is provided with along the grip part; Be placed in a plurality of springs (113) and a plurality of ball (115) in said each circular hole (111) respectively; Said ball (115) is resisted against in corresponding each slideway (322) by spring (113) compressing; And can move on to another slideway (322) from a slideway (322), rotate to said extension rod (12) with the said grip part of selectable transmission (11).
5. reciprocating saw according to claim 4 (20); It is characterized in that: said slideway (322) extends along the radial direction of clutch seat (321); Slideway (322) both sides are respectively first slope (325) and second slope (327); The gradient of said first slope (325) is greater than the gradient of said second slope (327), and said ball (115) shifts out this slideway (322) and gets into this slideway (322) by another slideway (322) first slopes (325) from second slope (327) of a slideway (322).
6. reciprocating saw according to claim 1 (20); It is characterized in that: said extension rod (12) is provided with screw thread; Said anchor clamps (10) are provided with the nut (15) that matches, and said nut (15) is removable with the screw thread on the said extension rod of interlock (12) optionally, said clutch (31; 32) comprise the cam clutch of being located between said grip part (11) and the said nut (15) (31), be used for optionally the motion of said grip part (11) is delivered to said nut (15).
7. reciprocating saw according to claim 6 (20); It is characterized in that: said cam clutch (31) comprising: cam (18); In the form of a ring and be socketed on the extension rod (12); Optionally move (15) interlock of said nut or break away from the screw thread on the said extension rod (12), be interval with optionally first flange (185) and second flange (187) of the said nut of butt (15) on the said cam (18); Pivoted housing (17) is located between said cam (18) and the said extension rod (12), axially the connection extension rod (12) of slip; A plurality of ball hole (173,181), spring (175) and balls (176) that match; Said a plurality of ball holes (173,181) are located at respectively on the contact-making surface of pivoted housing (17) and cam (18); Said a plurality of spring (175) and ball (176) are located in described a plurality of ball holes (173,181); Said ball (176) is resisted against in the ball hole (173,181) by spring (175) compressing; And another ball hole (173,181) can be moved on to from a ball hole (173,181), with the cam that rotatablely moves (18) of the said pivoted housing of selectable transmission (17).
8. reciprocating saw according to claim 1 (20) is characterized in that: said clamping plate (16) comprise train wheel bridge (162) and lower plate (161), the connection that can be pivoted relative to each other through a clamping plate pivot (163) between said train wheel bridge (162) and the lower plate (161).
9. reciprocating saw according to claim 1 (20) is characterized in that: the said housing of the dismountable connection of said anchor clamps (10) (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910126153XA CN101758294B (en) | 2008-12-25 | 2009-02-24 | Reciprocating saw |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810190397.X | 2008-12-25 | ||
| CN200810190397 | 2008-12-25 | ||
| CN200910126153XA CN101758294B (en) | 2008-12-25 | 2009-02-24 | Reciprocating saw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101758294A CN101758294A (en) | 2010-06-30 |
| CN101758294B true CN101758294B (en) | 2012-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910126153XA Expired - Fee Related CN101758294B (en) | 2008-12-25 | 2009-02-24 | Reciprocating saw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101758294B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537758A (en) * | 2012-07-11 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Power tool |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9321112B2 (en) * | 2011-05-18 | 2016-04-26 | Black & Decker Inc. | Power saw tool |
| CN103895068B (en) * | 2012-12-25 | 2016-08-03 | 苏州宝时得电动工具有限公司 | Electric reciprocating saw |
| CN103447614B (en) * | 2013-08-20 | 2015-10-21 | 江苏苏美达五金工具有限公司 | A kind of electric reciprocating saw |
| CN103785897B (en) * | 2014-01-27 | 2016-12-07 | 天佑电器（苏州）有限公司 | Clamping device and there is the electric tool of this clamping device |
| SE541669C2 (en) * | 2017-08-28 | 2019-11-26 | Husqvarna Ab | A cutter clamp |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611146A (en) * | 1995-10-25 | 1997-03-18 | Ducret; Lucien C. | Clamping device for use with a hand-held tool |
| CN1785602A (en) * | 2004-12-09 | 2006-06-14 | 罗伯特·博世有限公司 | Hand power tool with a clutch |
| CN201108971Y (en) * | 2007-11-21 | 2008-09-03 | 苏州宝时得电动工具有限公司 | Power tool |
| CN201124364Y (en) * | 2007-10-01 | 2008-10-01 | 苏州宝时得电动工具有限公司 | Power tool |
-
2009
- 2009-02-24 CN CN200910126153XA patent/CN101758294B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5611146A (en) * | 1995-10-25 | 1997-03-18 | Ducret; Lucien C. | Clamping device for use with a hand-held tool |
| CN1785602A (en) * | 2004-12-09 | 2006-06-14 | 罗伯特·博世有限公司 | Hand power tool with a clutch |
| CN201124364Y (en) * | 2007-10-01 | 2008-10-01 | 苏州宝时得电动工具有限公司 | Power tool |
| CN201108971Y (en) * | 2007-11-21 | 2008-09-03 | 苏州宝时得电动工具有限公司 | Power tool |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103537758A (en) * | 2012-07-11 | 2014-01-29 | 苏州宝时得电动工具有限公司 | Power tool |
| CN103537758B (en) * | 2012-07-11 | 2016-03-16 | 苏州宝时得电动工具有限公司 | Power tool |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101758294A (en) | 2010-06-30 |
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