KR20190066901A - Portable and stationary electric saw - Google Patents

Abstract

The present invention relates to a portable and holding electric saw wherein a saw blade can be used as a whole without being locally worn such that a unique lifespan of the saw blade can be guaranteed, the saw blade can be prevented from being bent such that cutting of an object to be cut can be accurately and neatly cut, space and material can be saved and an equilibrium of the wire is maintained when the saw blade is overloaded such that cutting of the object to be cut can be performed accurately and neatly, and the left and right holder bars fixing the object to be cut are relatively raised by the cutting depth such that the object to be cut can be more stably fixed and supported, thereby being capable of being used for portable use and being usable for holding by a simple assembly.

Description

[0001] Portable and stationary electric saw [0002]

The present invention relates to an electric saw, and more particularly, to an electric saw capable of positioning the left and right holder bars, which prevent the flow of a material to be cut, from anywhere in the whole area of the saw blade, so that the saw blade can be utilized as a whole without being locally worn. And a saw blade tensioner that applies a tensile force to the saw blade holder is provided to apply tension to the saw blade to prevent warping of the saw blade so that the cut material can be cut accurately and neatly, The first and second wires fixed to the holder are directly coupled to the linear carriage so as to save space and material, and a wire tensioner for imparting tension to the wire is provided so that when the saw blade is overloaded, So that the cut material can be cut accurately and neatly, The cutter holder is mounted on the left and right vertical guide bars so as to be able to move up and down so that the left and right holder bars and the cutter are raised relative to each other by the cutting depth so that the cutter can be more stably fixed and supported. The present invention relates to a portable and stationary electric saw capable of being used for mounting by simple assembly.

BACKGROUND ART Saws have been used extensively for cutting wood to be cut such as wood or metal, and there are various types depending on the use.

Conventional saws are classified into a manual saw having a handle at one end and a manual saw having a saw to which a holder is attached, and a power saw in which the saw blade is moved back and forth by a power transmission device.

A manual saw using a holder is divided into a band saw to hold the band saw blade on the holder and a saw to mount the saw blade on the holder.

Electric power saws are classified into electric band saws, electric saws, and electric circular saws according to the types of saw blades mounted on power transmission devices including motors.

However, in the conventional manual saw and electric power saw, the cutting accuracy is lowered when the object to be cut is not firmly fixed in the process of cutting the object to be cut.

In addition, since the conventional manual saw and electric power saw do not have a means for fixing the workpiece to be cut by itself, the workpiece must be fixed by stepping on the foot or by using a separate vise, .

Particularly, in the case of medical use, the fixation of the object to be cut is absolutely required. However, since it can not be forcibly fixed due to the nature of the object to be cut, the cutting operation becomes more troublesome and causes medical accidents.

As a prior art related to a conventional power saw, Korean Patent Laid-Open No. 10-2010-0027603 (published on Mar. 11, 2010) "Portable Top" (hereinafter referred to as "Prior Art 1") uses a cantilever- Which is advantageous in that it is simple in structure and excellent in cutting performance, and can be installed in various apparatuses and can be used interchangeably.

However, since it does not have means for fixing the workpiece itself, it can not solve the problems of the above-described prior art.

As a prior art related to a conventional power saw, Korean Patent Laid-Open Publication No. 10-2012-0001182 (published on Jan. 14, 2012) entitled "Electric Top" (hereinafter referred to as "Prior Art 2") supports a total load of the power saw A support die on which a guide is mounted; A drive mechanism which is slidably inserted into the guide and to which the cutting saw is coupled through the tension adjusting means to the bent portions at both ends thereof; A turning mechanism connected to the support die and the drive mechanism to move the drive mechanism; A power mechanism connected to the turning mechanism via a chain or a belt to rotate the turning mechanism; And a protection mechanism mounted on the support die to protect the cutting saw through the flow preventing means and to fix the workpiece through the article fixing means. Thus, the working time and the work process due to cutting of the workpiece are reduced, The precision according to the present invention is improved and the reliability is increased.

However, since the cutting operation is performed while the workpiece is fixed by the article fixing means provided in the prior art 2, the cutting accuracy is improved, but the position of the article fixing means is limited to a certain section Therefore, there is a problem that the service life of the saw blade is shortened because the saw blade can not be used due to the wear of the used part, although the part of the saw blade is used for cutting and the unused part is not worn at all.

Korean Patent Laid-Open No. 10-2010-0027603 (published on March 11, 2010) Korean Patent Publication No. 10-2012-0001182 (2012.04.04. Open) "Electric Top"

Accordingly, it is an object of the present invention to provide a cutting tool capable of positioning the left and right holder bars, which prevent the flow of the cut material, from being located anywhere in the whole area of the saw blade, so that the saw blade can be utilized as a whole without being locally worn, So as to provide a portable and stationary electric power saw.

Another object of the present invention is to provide a portable and stationary electric saw capable of precisely and neatly cutting a to-be-cut object by providing a saw blade tensioner with a tensile force acting on the saw blade holder to prevent the saw blade from being warped by applying tension to the saw blade will be.

Another object of the present invention is to provide a portable and stationary electric saw capable of saving space and material by directly connecting first and second wires fixed to the left and right saw blade holders to the linear reciprocating unit.

It is still another object of the present invention to provide a portable and stationary electric power saw having a wire tensioner for applying tension to a wire so that the equilibrium of the wire is maintained when an overload is applied to the saw blade so that the cut material can be accurately and neatly cut I want to.

It is a further object of the present invention to provide a workpiece holder for fixing a workpiece to be raised and lowered on the left and right vertical guide bars so that the left and right holder bars and the workpiece can be relatively raised by the cutting depth, So as to stably support the portable and stationary electric power saw.

Another object of the present invention is to provide a portable and stationary electric power saw that can be used for portable use and can be used for mounting by simple assembly.

According to an aspect of the present invention, there is provided a plasma display panel comprising: a base plate formed in a rectangular shape; A saw blade installed at a lower end of the base plate so as to be movable left and right; Left and right saw blade holders installed at left and right lower ends of the base plate to fix left and right ends of the saw blade; A linear reciprocating motion generating unit for linearly reciprocating the saw blade to the left and right; A first wire which is inverted at a lower left end of the base plate and is connected between the left saw blade holder and the linear reciprocating movement generating part, and a second wire which is reversed at the upper left and upper right ends of the base plate, A second wire connected between the parts; A workpiece holder installed on the base plate for fixing the workpiece; And a left and right sawtooth tensioner for applying tension to the saw blade. The present invention also provides a portable and stationary electric power saw.

The left and right saw blade holders include left and right guides fixed to the left and right sides of the base plate and left and right side guides that are slidable left and right on the left and right guides, And a slider.

The left and right saw blade holders include left and right guides fixed to the left and right sides of the base plate and left and right side guides that are slidable left and right on the left and right guides, Wherein the left and right saw blade tensioners are constituted by tension springs whose both ends are fixed to the base plate and the sliders of the left and right saw blade holders.

And first and second wire tensioners installed on the base plate and applying tension to the first and second wires.

Wherein the first wire tensioner includes a support shaft fixed to the base plate, a tension arm rotatably supported on the base plate through the support shaft, and a tension arm connected to the tension arm in a direction to apply tension to the first wire And a tension roller rotatably mounted on an upper surface of one end of the tension arm and resiliently brought into close contact with the first wire, wherein the second wire tensioner includes a tension spring fixed to the base plate, A tension arm rotatably supported on the base plate through the support shaft; a tension spring for elastically supporting the tension arm in a direction to apply tension to the second wire; And a tension roller which is installed so as to be elastically brought into close contact with the second wire.

The tension arms of the first and second wire tensioners are formed with slots into which the support shaft is inserted.

The tension roller further includes a flange portion formed at a rear end portion to prevent the first and second wires from falling backward.

The first wire is inverted and guided by a guide roller rotatably installed at a lower left end of the base plate, one end is fixed to the linear reciprocating unit of the linear reciprocation generating unit, and the other end is fixed to the slider of the left saw blade holder And the second wire is reversely guided by guide rollers rotatably installed at a left upper end, a right upper end and a right lower end of the base plate, one end is fixed to the linear reciprocating unit of the linear reciprocating unit, And is fixed to the slider of the left saw blade holder.

Wherein the guide rollers each include a roller shaft fixed to the base plate and a roller rotatably supported on the roller shaft to invert and guide the first and second wires, 1 and the flange portion for preventing the second wire from falling forward.

The base plate includes left and right plates, a connecting portion connecting the upper ends of the left and right plates, and an opening portion formed between the left and right plates and the connecting portion. The hollow handle coupled to the left side of the left plate, And a battery receiving portion formed at the left end of the handle to receive the battery.

Wherein the linear reciprocating motion generating unit is mounted on a left end of the base plate; A crankshaft coupled to an output shaft of the torque generating device, and a crank pin fixedly mounted on the crank arm; A pair of upper and lower linear bearings fixed to the left front surface of the base plate, a linear reciprocating shaft supported to be reciprocatable in the pair of linear bearings, And a linear carriage interlocked with the pin.

The linear reciprocating motion generating unit may further include a main switch mounted on the base plate, a work switch provided on the handle, and a power jack for connecting a jack of the AC / DC converter.

Wherein the workpiece holder comprises: A horizontal guide fixed to the front surface of the connection part of the base plate, a vertical guide installed vertically below the horizontal guide and guided to be horizontally movable within a range of the opening, And a left and a right holder movably supported in the up and down direction.

Wherein the base plate includes left and right plates, a connecting portion connecting the upper ends of the left and right plates, and an opening formed between the left and right plates and the connecting portion, A horizontal guide fixed to the front surface of the connection part of the base plate, a vertical guide installed vertically below the horizontal guide and guided to be horizontally movable within a range of the opening, And a left and a right holder movably supported in the up and down direction.

The horizontal guide may further include a horizontal guide groove formed to be long in the left and right direction on the front surface and having left and right end portions and a front portion opened and a locking protrusion on a front side and a lower side, A left and right side slider slidably inserted into the groove in the left and right directions, a left and right side vertical guide bars vertically installed in the lower portion of the horizontal guide, and a left and right side slider connected to the left and right horizontal sliders, And a vertical guide fixing screw for horizontally guiding and fixing the left and right sliders and the side connecting plates to each other.

The left and right vertical guide bars may further include left and right vertical guide grooves formed to be vertically elongated on the front and having upper and lower end portions and a front portion opened and a locking protrusion on the front left and right sides, And a left holder bar having an upper end coupled to the left vertical slider and having a front plate and a side plate contacting the front and right sides of the left vertical guide bar, The right holder includes a right vertical slider that is vertically inserted into the right vertical guide groove and a front plate and a side plate which are coupled to an upper end of the right vertical slider and contact the front surface and the left surface of the right vertical guide bar And a right holder bar.

And an elastic member coupled to the left and right vertical sliders and elastically contacting the left and right vertical guide grooves.

The left and right vertical sliders are formed in a cylindrical shape and a part of the elastic material is inserted into the left and right vertical sliders and exposed to the outer peripheral surfaces of the left and right vertical sliders, And is elastically brought into close contact with the guide groove.

And left and right holder adjusting means provided between the base plate and the left and right vertical guide bars for adjusting the positions of the left and right vertical guide bars.

The left holder adjusting means includes a guide block fixed to the base plate and having guide holes penetrating right and left, a guide bar inserted into the guide hole so as to be movable left and right and having a right end fixed to the left vertical guide bar, And a fixing screw fastened to the screw hole formed in the guide block and fixing the guide rod to the guide block.

The guide rod is configured such that the right end of the guide rod is inserted into a coupling hole formed in a fixing block fixed to the left vertical guide, and a fixing screw is fastened to a screw hole formed in the fixing block so that the guide rod is fixed to the fixing block.

Wherein the right holder adjusting means comprises a nut box having a front opening and fixed to the base plate and having a through hole penetrating right and left, an adjusting nut inserted into the nut box so as to be movable forward and backward, And a regulating screw rod screwed to the adjusting nut and having a left end rotatably connected to the right vertical guide bar.

The right holder adjusting means may be formed such that the screw hole of the adjusting nut and the pitch and the lead angle of the male screw portion of the adjusting screw rod are the same but the inner diameter of the screw hole is made larger than the outer diameter of the male screw portion, And a tightening screw threaded into the tightening screw hole of the finishing block.

A rotation cylinder having a flange formed at a left end of the adjustment screw rod and having a flange formed at a left end thereof and a rotation support hole having an inner diameter smaller than that of the flange and rotatably inserted into the rotation cylinder, And a support member for forming a gap in which the flange portion is formed.

And a base for supporting the base plate to be used for mounting, wherein the base comprises: a mounting post for supporting the base plate; a support member coupled to the left vertical guide bar to support the base material, And a cutter supporting plate having a slit for making a conversation.

A base plate coupling groove formed on a front surface of the mounting post and having upper and lower ends and a front portion opened and a latching protrusion formed on the front left and right sides of the base plate, A coupling bolt, and a base coupling nut to be coupled to the base coupling bolt.

The workpiece support plate is coupled to the left vertical guide bar by vertically passing a plurality of screws through a screw hole formed in the left vertical guide bar.

And a pair of front and rear support plate fasteners fixed to the lower surface of the workpiece support plate and fixed to the left vertical guide bar.

According to the portable and stationary electric power saw of the present invention, the saw blade can be utilized as a whole without being locally worn, so that the service life of the saw blade can be guaranteed.

Further, according to the portable and stationary electric saw of the present invention, warping of the saw blade can be prevented, and cutting of the object to be cut can be precisely and neatly cut.

Further, according to the portable and stationary electric power saw of the present invention, space and materials can be saved.

Further, according to the portable and stationary electric power saw of the present invention, when the saw blade is overloaded, the equilibrium of the wire is maintained, and cutting of the object to be cut can be accurately and neatly performed.

Further, according to the portable and stationary electric saw of the present invention, the left and right holder bars holding the workpiece to be relatively lifted up by the cutting depth, so that the workpiece can be more stably fixed and supported.

Further, according to the portable and stationary electric power saw of the present invention, it can be used for portable use and can be used for mounting by simple assembly.

1 to 7 show a preferred embodiment of the portable and stationary electric saw according to the present invention,
1 is a perspective view of a saw top body,
Fig. 2 is an exploded perspective view of the saw blade, the saw holder, the first and second wires, the saw tensioner, the wire tensioner,
3 is an exploded perspective view of the object to be cut,
4 is an exploded perspective view of the holder adjusting means,
5 is a perspective view showing a state in which the electric saw body is mounted on a cradle,
6 is an exploded perspective view of the base and the cradle,
7 is an exploded perspective view of a left vertical guide bar and a cut material supporting plate.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a portable and stationary electric power saw according to the present invention will be described in detail with reference to the preferred embodiments illustrated in the accompanying drawings.

When the portable and stationary electric power saw of the present invention is used for portable purposes, the saw blade faces downward, and therefore, the following description will be made for the sake of convenience. In other words, the direction in which the saw blade is located is downward, the opposite direction is upward, the left side of the drawing is to the left, the right side of the drawing is the rear side, the direction leading to the front side of the figure is forward and the direction to the bottom of the figure is rearward .

In the following description, various screws or bolts for fixing and coupling components and screw holes for fastening screws or bolts and screw holes for fastening components are shown in the drawings, but reference numerals and explanations are omitted.

Also, the illustration of the washer which is fitted between the head portion of the screw or the bolt and the fixing or coupling object is shown in the drawing, but the reference numerals and explanations are omitted.

1 to 7 show preferred embodiments of a portable and stationary electric power saw according to the present invention.

As shown in Figs. 1 to 7, the portable and stationary electric saw according to this embodiment includes an electric saw main body A and a cradle B. As shown in Figs.

The electric tooth saw main body A can be used as a portable body itself, and the cradle B is for mounting the electric tooth saw main body A for use as a mount.

A base plate 100 formed in a rectangular shape; A saw blade 200 mounted on the lower end of the base plate 100 so as to be movable left and right; Left and right saw blade holders 310 and 320 installed at left and right lower ends of the base plate 100 to fix left and right ends of the saw blade 200; A linear reciprocating motion generating unit 400 for linearly reciprocating the saw blade 200 to the left and right; A first wire 510 inverted at a lower left end of the base plate 100 and connected between the left saw blade holder 310 and the linear reciprocation generating part 400, And a second wire (520) inverted at the lower end and connected between the right saw blade holder (320) and the linear reciprocation generating part (400); Left and right sawtooth tensioners 610 and 620 for applying tension to the saw blade 200; First and second wire tensioners (710, 720) for applying tension to the wires (510, 520); And a workpiece holder (800) installed on the base plate (100) to fix a workpiece to be cut.

The base plate 100 includes a left side plate 110 and a right side plate 120 formed in a rectangular shape and spaced apart from each other in the fore and aft direction, a connecting part 130 connecting upper ends of the left side plate 110 and the right side plate 120, And an opening 140 formed between the left side plate 110 and the right side plate 120 and the connection portion 130.

A handle 150 is coupled to the left side of the base plate 100.

The handle 150 is formed in a hollow shape having a battery compartment 160 at its left end.

The saw blade 200 has an example using a saw blade in the illustrated example, but a band saw blade can be used.

The saw blade 200 includes an elongated saw blade body 210, a plurality of teeth 220 arranged in the saw blade body 200 in the longitudinal direction, and a left and right connection portion 220 formed at left and right ends of the saw blade body 210, (230, 240).

The connection portions 230 and 240 are formed in a ring shape and are configured to be fixed by fastening the saw blades 231 and 241 to the object to be fixed.

The left saw blade holder 310 is installed at a lower end of the left plate 110 and the right saw blade holder 320 is installed at a lower end of the right plate 120.

The left and right saw blade holders 310 and 320 include left and right guides 311 and 321 fixed to left and right front surfaces of the base plate 100 and left and right guides 311 and 321, And left and right sliders 312 and 322 which are slidably installed and to which the left and right ends of the saw blade 200 are fixed.

The left and right guides 311 and 321 can be fixed to the base plate 100 by fastening the screws passing through both ends of the left and right guides 311 and 321 to the screw holes formed in the base plate 100.

The left and right guides 311 and 321 are positioned at the left and right lower ends of the base plate 100 and the left and right lower ends of the left and right sides of the base plate 100, respectively, because the saw blade 200 is located at the lower end of the base plate 100, And the lower end of the right side plate 120.

The left and right guides 311 and 321 and the left and right sliders 312 and 322 constituting the left and right saw blade holders 310 and 320 may use a linear motion guide.

By using the linear motion guides of the left and right saw blade holders 310 and 320, the linear reciprocation motion of the saw blade 200 is quiet and smoothly performed without rocking.

The right and left ends of the saw blade 200 are screwed into threaded holes formed in the sliders 312 and 322 of the left and right saw blade holders 310 and 320 by passing screws 231 and 241 through the connecting portions 230 and 240 It can be fixed to the sliders 312 and 322 of the left and right saw blade holders 310 and 320. [

The linear reciprocating motion generating unit 400 includes a rotational force generating device 410 mounted on the left end of the base plate 100 and a crank arm 431 coupled to the output shaft 420 of the rotational force generating device 410. [ A crank shaft 430 having a crank pin 432 fixed to the crank arm 431 and fixed to the crank arm 431, a pair of upper and lower linear bearings 440 fixed to the left front surface of the base plate 100, And a linear reciprocating shaft 450 coupled to the intermediate portion of the linear reciprocating shaft 450 and interlocked with the crank pin 432. The linear reciprocating shaft 450 is supported by the pair of linear bearings 440 so as to be vertically reciprocatable, 460).

The rotational force generating device 410 may be composed of a driving motor 411 and a speed reducer 412 and the output shaft 420 may be a final output shaft of the speed reducer 412. However, And the output shaft 420 may be constituted by the motor shaft of the drive motor 411. [

The crankshaft 430 may be coupled to the output shaft 420 of the torque generating device 410 through the main journal coupled to the center of the crank arm 431, And the crank arm 431 may be formed in a rod shape, but it is preferable that the crank arm 431 is formed in a disk shape so as to have rotational inertia like a flywheel.

The cylindrical pin journal 433 is interposed between the crank pin 432 and the cylindrical pin journal 433 in order to minimize the frictional resistance with the linear reciprocating table 460, It is preferable to insert the bearing 434 into the crank pin 432 to minimize frictional resistance on the linear carriage 460. Reference numeral 535 denotes a screw that penetrates the pin journal 433 and the bearing 434 and is engaged with the crank pin 432 to prevent the pin journal 433 and the bearing 434 from separating from each other.

The torque generating device 410 and the linear bearing 440 can be mounted on the base plate 100 through the bracket 470.

It is preferable that a linear bearing is inserted between the linear bearing 440 and the linear reciprocating shaft 450 to minimize the frictional resistance during the linear reciprocating motion of the linear reciprocating shaft 450.

The linear carriage 460 is provided with a crank pin hole 461 into which the crank pin 432 is inserted.

The linear reciprocating motion generating unit 400 includes a battery 480 housed in the battery receiving portion 160 of the handle 150 and supplying power to the driving motor 411 of the rotational force generating device 410, A main switch 491 mounted on the base plate 100, a work switch 492 mounted on the handle 150 and a power jack 493 for connecting the jack of the AC / DC converter.

The wires connecting the battery 480 to the main switch 491, the work switch 492 and the power jack 493 can be wired through the inside of the handle 150 and some can be wired to the outside.

The main switch 491 may be a switch such as a toggle switch or a push-lock button switch that can be kept in the "on" state and the "off" state. Quot; state, and a " off " state can be used when the button is touched.

The first and second wires 510 and 520 may be single wires but it is preferable to use a twisted wire having a characteristic that the first and second wires 510 and 520 can be easily bent without being easily broken even when used for a long time .

The first wire 510 passes through the threaded holes 513 and 514 formed in the loop rings 511 and 512 formed at both ends of the first wire 510 and the threaded hole formed in the linear reciprocating unit 460 of the linear reciprocating unit 400, The first wire 510 can be connected to the linear reciprocating movement generating part 400 and the left saw blade holder 310 by fastening it to the screw hole formed in the slider 312 of the saw blade holder 310, The screw holes 523 and 524 are passed through the loop rings 521 and 522 formed at both ends of the right and left saw blade holders 320 and 520, The second wire 520 can be connected to the linear reciprocating movement generating part 400 and the right saw blade holder 320 by fastening it to the screw hole formed in the slider 322. [

The loop rings 511, 512, 521, and 522 can be configured so that both ends of the wires 510 and 520 are bent and the overlapped portions of the wires are bound together by a binding wire or a binding band.

One end of the first and second wires 510 and 520 is fixed to the left and right saw blade holders 310 and 320 and the other end is directly coupled to the linear carriage 460 to save space and materials .

The first wire 510 is reversed and guided by a guide roller 530 rotatably installed at the lower left end of the base plate 100 and the second wire 520 is reversed and guided by the upper left end of the base plate 100 And is guided and reversed by the guide rollers 540, 550, 560 rotatably installed at the upper right and lower right ends.

The guide rollers 530, 540, 550 and 560 are provided with roller shafts 531, 541, 551 and 561 fixed to the base plate 100 and guide rollers 531, 541, 551 and 561, And rollers 532, 542, 552, and 562 that are supported by the first and second wires 510 and 520 to reverse and guide the first and second wires 510 and 520, respectively.

The rollers 532, 542, 552 and 562 are formed into a cylindrical shape so as to smoothly rotate the rollers 530, 540, 550 and 560, It is preferable to insert the bearings 533, 543, 553, 563 between the outer circumferential surface and the inner circumferential surfaces of the rollers 532, 542, 552, 562.

In order to prevent the first and second wires 510 and 520 from being separated from the ends of the rollers 532, 542, 552 and 562 constituting the guide rollers 530, 540, 550 and 560, (534, 544, 554, 564).

The roller shafts 531, 541, 551, and 561 may be screws having head portions and may be fastened and fixed to screw holes formed in the base plate 100. Bearings 533, 543, 553, But it is possible to attach the separation preventing washers 535, 545, 555, and 565 to prevent the separation more reliably.

The left and right sawtooth tensioners 610 and 620 are constituted by tension springs and both ends thereof are fixed to the base plate 100 and the sliders 312 and 322 of the left and right saw blade holders 310 and 320, respectively.

The left and right sawtooth tensioners 610 and 620 are fastened with screws which penetrate the round hooks 611, 612, 621 and 622 using round hook tension coil springs having rounded hooks 611, 612, 621 and 622 at both ends thereof The base plate 100 and the sliders 312 and 322 can be fixed to the base plate 100 and the sliders 312 and 322 by fastening the base plates 100 and 100 to the screw holes formed in the sliders 312 and 322.

The first and second wire tensioners 710 and 720 allow the first and second wires 410 and 420 to maintain a balance when the saw blade 200 is overloaded.

The first wire tensioner 710 includes a support shaft 711 fixed to the base plate 100 and a tension arm 713 rotatably supported on the base plate 100 via the support shaft 711. [ A tension spring 714 for elastically supporting the tension arm 713 in a direction to apply a tension to the first wire 410 and a tension spring 714 rotatably installed on one upper surface of the tension arm 713, Roller 715,

The second wire tensioner 720 includes a support shaft 721 fixed to the base plate 100 and a tension arm 723 rotatably supported on the base plate 100 through the support shaft 721. [ A tension spring 724 for elastically supporting the tension arm 723 in a direction to apply tension to the second wire 420 and a tension spring 724 rotatably installed on one upper surface of the tension arm 723, And a roller 725.

The support shafts 711 and 721 may support the tension arms 713 and 723 themselves but may be fixed to the support shafts 711 and 721 in order to minimize frictional resistance between the support shafts 711 and 721 and the tension arms 713 and 723. [ It is preferable to sandwich the rings 712 and 722 between the tension arms 711 and 721 and the tension arms 713 and 723. [

The tension arms 713 and 723 may be provided so as to be rotatable in place, but they may be installed to be rotatable and slidable as shown in the drawing.

Slots 716 and 726 may be formed in the tension arms 713 and 723 and the support shafts 711 and 721 may be fixed to the base plate 100 through the elongated holes 716 and 726. [

In the illustrated embodiment, the support shafts 711 and 721 are composed of bolts having head portions and directly fastened and fixed to the screw holes formed in the base plate 100. However, the support shafts 711 and 721 are not limited to the support shafts 711 and 721, Can be selected from among the usual methods that can be fixed to the base plate 100 and employed.

It is preferable that the rear end portions of the tension rollers 715 and 725 are formed with flange portions 717 and 727 to prevent the first and second wires 410 and 420 from falling backward.

The flanges 531, 541, 551, and 561 formed at the leading ends of the rollers constituting the guide rollers 530, 540, 550, and 560 are rotated in a direction in which the first and second wires 410, And the flanges 717 and 727 prevent the first and second wires 410 and 420 from being separated toward the rear side so as to reliably prevent the first and second wires 410 and 420 from being separated from each other. .

The tension rollers 715 and 725 are formed by cylindrical rollers and bearings 719 and 726 are provided between the outer circumferential surfaces of the roller shafts 718 and 728 fixed to the tension arms 713 and 723 and the inner circumferential surfaces of the tension rollers 715 and 725, 729 are preferably inserted.

The tension springs 714 and 724 are screwed into the screws 714c and 714c through the round hooks 714a and 714b and 724a and 724b using round hook tension coil springs having rounded hooks 714a, 714b, 724a and 724b. 714d, 724c, and 724d can be fixed to the base plate 100 and the tension arms 713 and 723 by fastening them to the base plate 100 and the screw holes formed in the tension arms 713 and 723. [

The cut material holder 800 includes a horizontal guide 810 extending horizontally from the front of the connection part 130 of the base plate 100 and a horizontal guide 810 extending from the horizontal guide 810 within the range of the opening 140 Left and right side holders 840 and 850 movably supported by the left and right vertical guides 820 and 830 so as to be movable up and down, .

The horizontal guide 810 is horizontally formed on the front surface, and a horizontal guide groove 811 for guiding the left and right vertical guides 820 and 830 is formed.

The horizontal guide 810 has an example of using a ready-made member having grooves formed in front, rear, upper and lower surfaces as shown in the drawing, but a member having a horizontal guide groove 811 formed only on the front surface can be used.

The left and right end portions and front portions of the horizontal guide groove 811 are opened so that the left and right horizontal sliders 821 and 831, which will be described later, ).

The left and right vertical guides 820 and 830 include left and right horizontal sliders 821 and 831 slidably inserted into the horizontal guide groove 811 in a horizontal direction, Left and right vertical guide bars 822 and 832 and left and right horizontal sliders 821 and 831 and left and right vertical guide bars 822 and 832 And vertical guide fixing screws 824 and 834 for fixing the left and right sliders 821 and 831 and the side connecting plates 823 and 833 with respect to the horizontal guide 810.

The left and right horizontal sliders 821 and 831 may be inserted through the left end or the right end of the horizontal guide 810.

The left and right connection plates 823 and 833 and the horizontal sliders 822 and 832 are engaged with coupling screws 825 and 835 passing through the left and right connection plates 823 and 833, To the screw holes formed in the left and right horizontal sliders 821 and 831 through the through-holes.

In the illustrated embodiment, the left and right horizontal sliders 821 and 831 have hexagonal cross-sectional shapes, but may be different depending on the cross-sectional shape of the horizontal guide groove 811.

Right and left vertical guide grooves 826 and 836 are vertically formed on the front surfaces of the left and right vertical guide bars 822 and 832 to guide the left and right holders 840 and 850.

The left and right vertical guide bars 822 and 832 have the same configuration as the example shown in the figure except that the left and right vertical guide bars 822 and 832 have left and right vertical guide grooves 826 and 836, Can be used.

The left and right vertical guide grooves 826 and 836 are elongated in the vertical direction so that the upper and lower end portions and the front portion are opened and the left and right vertical sliders 841 and 851, And latching jaws 826a and 836a formed on the right side.

Saw blade passing grooves 827 and 837 in the form of slits through which the saw blade 200 passes are formed at the lower ends of the left and right vertical guide bars 822 and 832.

The left and right connection plates 823 and 833 are formed in a flat plate shape in which the upper half is in close contact with the front surface of the horizontal guide 810 and the lower half is in close contact with the upper ends of the left and right vertical guide bars 820 and 830 .

It is preferable that the vertical guide fixing screws 824 and 834 are formed with a butterfly screw so that they can be turned by hand without using a separate tool.

The left holder 840 includes a left vertical slider 841 that is vertically inserted into the left vertical guide groove 826 and an upper end connected to the left vertical slider 841, And a left holder bar 842 having a front plate 842a and a side plate 842b which are in contact with the front and right sides and the right holder 850 is vertically inserted into the right vertical guide groove 836 A right side vertical slider 851 and a right side vertical slider 851. The right side vertical slider 851 has a front plate 852a and a side plate 852b which are coupled to an upper end of the right vertical guide bar 832, And includes a holder bar 852.

The left and right vertical sliders 841 and 851 may be inserted through upper ends or lower ends of the left and right vertical guide bars 822 and 832, respectively.

The left and right vertical sliders 841 and 851 and the left and right holder bars 842 and 852 are engaged with engagement screws 843 and 853 passing through the upper ends of the front plates 842a and 852a of the left and right holder bars 842 and 852, 853 are coupled to the screw holes formed in the left and right vertical sliders 841, 851 through the front openings of the vertical guide grooves 826, 836.

At this time, the coupling screws 843 and 853 can directly couple the front plates 842a and 852a of the left and right holder bars 842 and 852 and the left and right vertical sliders 841 and 851, 854a of the left and right vertical sliders 841, 852 are inserted through the reinforcing knobs 844, 854 and the front plates 842a, 852a while the reinforcing knobs 844, ).

The left and right vertical sliders 841 and 851 and the left and right holder bars 842 and 852 are coupled to the left and right vertical sliders 841 and 851 to prevent the left and right vertical sliders 841 and 851, Elastic members 845 and 855 elastically contact the right vertical guide grooves 826 and 836, respectively.

The left and right vertical sliders 841 and 851 are formed in a cylindrical shape and a portion of the elastic member 845 855 is bent into the left and right vertical sliders 841 and 851, The elastic members 845 and 855 are elastically brought into close contact with the inner circumferential surfaces of the left and right vertical guide grooves 826 and 836 Any structure can be employed.

The apparatus further includes left and right holder adjusting means 860 and 870 for adjusting the positions of the left and right vertical guide bars 822 and 832 and the left and right holders 840 and 850.

The left holder adjusting means 860 includes a guide block 861 fixed to the base plate 100 and having a guide hole 862 penetrating right and left and a guide block 862 inserted into the guide hole 862 so as to be movable left and right A guide bar 863 having a right end fixed to the left vertical guide bar 822 and a guide bar 863 fastened to a screw hole formed in the guide block 861 to fix the guide bar 863 to the guide block 861 And includes a screw 864.

The guide rod 863 may be directly coupled to the left vertical guide 822 by forming a threaded portion at the right end thereof and forming a screw hole in the left vertical guide 822 to fasten the threaded portion to the screw hole, The right end of the guide rod 863 is inserted into the coupling hole 866 formed in the fixed block 865 fixed to the left vertical guide 822 and the screw hole formed in the fixed block 865 is fastened with a fixing screw The guide bar 863 can be fastened to the fixing block 865 by fastening the guide bar 867.

The right holder adjusting means 870 includes a nut box 871 having a front opening and formed with a through hole 871a fixed to the base plate 100 and passing through the right and left sides of the nut plate 871, And an adjusting nut 872 screwed to the adjusting nut 872 through the through hole 871a and having a left end rotatably connected to the right vertical guide bar 832. [ And a barber 873.

The right holder adjusting means 870 adjusts and moves the adjusting rod 873 by the screw action of the adjustment screw 873 and the adjusting nut 872 by holding the knob 873a and turning the adjusting screw 873, And the right vertical guide bar 832 connected to the left end of the adjusting screw 873 moves left and right so that the position of the right vertical guide bar 832 can be adjusted.

At this time, when the adjustment distance between the right vertical guide bar 832 and the right vertical holder bar 852 is long, it takes time to adjust the position of the right vertical guide bar 832 since the adjusting screw 873 must be rotated several times do.

Therefore, when the right vertical guide bar 832 and the right holder bar 852 are adjusted to the workpiece fixing position, the adjusting nut 872 and the adjusting screw rod 873 are not engaged with each other, The right holder bar 852 is brought into contact with the object to be cut and then the adjustment nut 872 is brought into engagement with the adjustment screw rod 873 so that the right holder bar 852 So that the cut material can be fixed,

When the right vertical guide bar 832 and the right holder bar 852 are spaced apart from the object to be cut, the adjusting nut 872 and the adjusting screw 873 are not engaged with each other, It is preferable that the right holder bar 852 is quickly separated from the object to be cut.

For this, the screw hole of the adjusting nut 872 and the pitch and lead angle of the male screw portion of the adjusting screw 873 are made to be the same, but the inner diameter of the screw hole is made larger than the outer diameter of the male screw portion, A finishing block 874 inserted into the front opening and formed with a tightening screw hole 874a and a tightening screw 875 screwed into the tightening screw hole 874a of the finishing block 874 have.

Thus, when the tightening screw 875 is tightened, the adjusting nut 872 is pushed rearward and the screw hole is engaged with the male screw part. When the tightening screw 875 is loosened, the nut box 871 becomes free, It will not be engaged.

The nut box 871 can be fixed to the base plate 100 by a plurality of screws 871b and a reinforcing plate 871c can be stuck between the base plate 100 and the nut box 871 for reinforcement. have. The reinforcing plate 871c may be fixed to the base plate 100 by a separate screw.

A flange portion 876a is formed at the left end of the adjusting screw rod 873 so as to be rotatably connected to the right vertical guide bar 832 at the left end of the adjusting screw rod 873, And a rotation support hole 877a having an inner diameter smaller than that of the flange portion 876a so that the rotation cylinder 876 is rotatably inserted into the rotation cylinder 876, (See Fig. 1 and Fig. 4) for forming a clearance C in which the flange portion 876a is located.

Hereinafter, a process of using the portable and stationary electric power saw of the present invention as a portable device will be described.

As shown in FIG. 1, the left and right vertical sliders 841, 842 are provided on the left and right vertical guide bars 822, 832 so that the saw blade 200 faces downward when used in a portable manner, 851 and the left and right holder bars 842 and 852 are subjected to a force to descend by their own weight and are installed between the left and right vertical sliders 841 and 851 and the left and right vertical guide grooves 826 and 836 The frictional resistance between the left and right vertical guide grooves 826 and 836 and the left and right vertical sliders 841 and 851 is increased by the elastic members 845 and 855 so that the left and right holder bars 842 and 852 are lowered .

In this state, the cut material is positioned between the left holder bar 842 and the right holder bar 852, and the left vertical guide bar 822, the left holder bar 842, the right vertical guide bar 832, The bar 852 is adjusted by the left and right holder adjusting means 860 and 870 so that the workpiece is fixed by the left holder bar 842 and the right holder bar 852. [

That is, when the vertical guide fixing screws 824 and 834 are loosened, the left and right horizontal sliders 821 and 831 are loosened from the horizontal guide grooves 811 and left and right connected to the left and right sliders and the connecting plates 823 and 833, The right vertical guide bars 822 and 832 are movable left and right,

When the fixing screw 864 of the left holder adjusting means 860 is loosened, the guide bar 863 is released from the fixing and the left vertical guide bar 863, which is connected to the right end of the guide bar 863 through the fixing block 865, The adjusting nut 872 is brought into a free state so that the screw hole of the adjusting nut 872 and the adjusting screw 875 of the right holder adjusting means 870 are released, The adjusting screw 873 can be moved to the left and right and the right end of the adjustment screw 873 is connected to the right side via the rotation cylinder 876 and the support member 877. [ The vertical guide bar 832 can be moved laterally.

In this state, the left and right vertical guide bars 822 and 832 are moved to the left and right to bring the left and right holder bars 842 and 852 into contact with both sides of the material to be cut and then the set screw 864 is tightened, The bar 822 is fixed and the tightening screw 875 is tightened to engage the threaded hole of the adjusting nut 872 with the threaded portion of the adjusting screw 873. Then the direction of tightening the adjusting screw 873 The adjusting rod 873 is moved to the left side by the screw action of the adjusting nut 872 and the adjusting screw rod 873 and the rotating rod 873 is moved to the left side of the adjusting screw rod 873, The right vertical guide bar 832 and the right holder bar 852, which are vertically coupled to each other via the support member 877 and the support member 877, are moved to the left side and brought into close contact with the object to be cut, Is fixed between the left holder bar 842 and the right holder bar 852.

The left and right holder bars 842 and 852 are coupled to the left and right sliders 841 and 851 that are vertically inserted into the vertical guide grooves 826 and 836 of the left and right vertical guide bars 822 and 832, So that the workpiece can be moved up and down according to the size of the workpiece so that the workpiece can be stably and accurately fixed.

The left vertical guide bar 822 extends from the left end to the right end of the opening 140 of the base plate 100 and the right vertical guide bar 832 extends from the right end of the opening 140 of the base plate 100 The fixed positions of the articles to be cut by the left and right holder bars 842 and 832 which are vertically coupled to the left and right vertical guide bars 822 and 832 are not concentrated on either side Can be positioned anywhere between the left and right sides of the opening portion 140 and between the left and right sides of the opening portion 140 so that it can be utilized as a whole of the saw blade 200 and the service life unique to the saw blade 200 can be guaranteed.

In this state, when the main switch 491 is turned on and the operation switch 492 is pressed, a linear reciprocating motion is generated by the linear reciprocating motion generating unit 400.

That is, when the main switch 491 and the work switch 492 are turned on, the power of the battery 480 is applied to the driving motor 411 to drive the driving motor 411, and the rotational force of the driving motor 411 is transmitted to the output shaft 420 And the rotational force output from the output shaft 420 is transmitted through the crank arm 431 of the crank 430 coupled to the output shaft 420 and the crank pin 432 and the linear reciprocating unit 460, (460).

Since the linear reciprocating unit 460 is coupled to the linear reciprocating shaft 450 supported by the linear bearing 440 fixed to the base plate 100 so as to reciprocate up and down, Can be performed stably and accurately. In addition, when the linear bearing is inserted between the linear bearing 440 and the linear reciprocating shaft 450, the linear reciprocating movement of the linear reciprocating unit 460 is more stable and accurate.

The linear carriage 460 and the first wire 510 having both ends fixed to the slider 312 of the left saw blade holder 310 and the linear carriage 460 and the right side The second wire 520 having both ends fixed to the slider 322 of the saw blade holder 320 is linearly reciprocated while being guided by the guide rollers 530, 540, 550, and 560, The sliders 312 and 322 and the saw blades 200 having both ends thereof are linearly reciprocated left and right.

When the worker grasps the handle 150 and applies a force downward, it starts to be cut by the saw blade 200 that is fixed between the left and right holder bars 842 and 852 and reciprocates linearly.

At this time, since the first and second wires 510 and 520 are tensioned by the first and second wire tensioners 710 and 720, the linear reciprocation of the first and second wires 510 and 520 is stable Since the saw blade 200 is tensioned by the left and right sawtooth tensioners 610 and 620, the saw blade does not bend and maintains a straight line, so that the cutting of the cut material is accurately and smoothly performed.

When the cutter starts to cut the cut material by the saw blade 200, the electric saw main body A is lowered. The left and right vertical sliders 841 and 851 and the left and right holder bars 842 and 852 are located on the left and right sides Since the workpiece is supported by the vertical guide bars 822 and 832 so as to be able to move up and down relative to the workpiece, the workpiece is fixed until the cutting of the workpiece is completed, do.

When the cutting of the cut material is completed, the fixing screws 824 and 834 and the fixing screws 864 and 875 are loosened so that the left and right horizontal sliders 821 and 831, the left and right vertical guide bars 822 and 832, The right holder bars 842 and 832 and the guide bar 863 and the adjusting screw rod 873 are movable left and right so that the left and right holder bars 842 and 832 are separated from the object to be cut, Can be released.

Meanwhile, the portable and stationary electric saw according to the present invention further includes a cradle (B) to be used for mounting.

The mount table B includes a mounting post 910 for supporting the base plate 100 and a slit support plate 810 which is coupled to the left vertical guide bar 822 and supports the material to be cut, 921, respectively.

A conventional bolt fastening method can be used to join the base plate 100 to the mounting post 910.

A base plate coupling groove 911 formed on the front surface of the mounting post 910 for coupling the base plate 100 to the mounting post 910 and a through hole 911 formed in the base plate 100, A base coupling bolt 930 into which a head portion 931 is inserted into the base plate coupling groove 911,

And a base coupling nut 940 fastened to the base coupling bolt 930.

The mounting post 910 has an example of using a ready-made member having grooves formed on the front and rear upper and lower surfaces as shown in the drawing, but a member having a base plate coupling groove 911 formed only on the front surface can be used.

The upper and lower end portions and the front portion of the base plate coupling groove 911 are opened so as to prevent the head portion 931 of the base coupling bolt 930, ).

It is preferable that the base coupling nut 940 be a butterfly screw so that the base coupling nut 940 can be turned by hand without using a separate tool.

At the lower end of the mounting post 910, a mounting fixture 912 for fixing to a floor (not shown) to be mounted is coupled.

The fixing fixture 912 can be coupled to the lower end of the mounting post 910 by horizontally penetrating the bolt and fastening it to a screw hole formed in the mounting post 910.

Further, the mounting fixture 912 can be fixed by fastening the vertically penetrating bolt to the floor to be mounted.

The workpiece support plate 920 may be coupled to the left vertical guide bar 822 by vertically passing a plurality of screws through the screw holes of the left vertical guide bar 822.

At this time, the left vertical slider 841 and the left holder bar 842 coupled to the left vertical guide bar 822 are removed and then the cut support plate 920 is coupled to the left vertical guide bar 822.

A pair of front and rear support plate fixtures 922 are fixed to the lower surface of the left and right vertical guide bars 822 and the support plate fixture 922 is fixed to the left vertical guide bar 822 0.0 > 822 < / RTI >

The support plate fixture 922 has a horizontal portion 923 and a vertical portion 924 and a horizontal portion 923 has a plurality of screws passing through the cut material supporting plate 920 in a screw hole formed in the horizontal portion 923 And by fastening a plurality of screws passing through the vertical portion 924 to the front and back surfaces of the left vertical guide bar 822, the left vertical guide bar 822 ). ≪ / RTI >

A pair of front and rear support plate fixtures 922 are fixed to the lower surface of the left and right vertical guide bars 822 and the support plate fixture 922 is fixed to the left vertical guide bar 822 0.0 > 822 < / RTI >

The support plate fixture 922 has a horizontal portion 923 and a vertical portion 924 and a horizontal portion 923 has a plurality of screws passing through the cut material supporting plate 920 in a screw hole formed in the horizontal portion 923 And by fastening a plurality of screws passing through the vertical portion 924 to the front and back surfaces of the left vertical guide bar 822, the left vertical guide bar 822 ). ≪ / RTI >

When the portable and stationary electric saw of the present invention is used for mounting, the object to be cut 920 is horizontally installed, the base plate 100 and the saw blade 200 are vertically installed, Is fixed on the workpiece support plate 920 and is fixed by the left and right holder bars 842 and 832 and then the electric saw body A and the holder 910 and the workpiece support plate 920 are moved It is possible to cut while moving the cut material.

When the portable and stationary electric power saw of the present invention is used for mounting, the operation is performed in the same way as it is different from the direction only, so a detailed description thereof will be omitted.

While specific embodiments of the invention have been illustrated and described, it will be obvious that the invention may be varied in many ways by a person of ordinary skill in the art. Such modified embodiments should not be individually understood from the technical idea or viewpoint of the present invention, but should be included in the claims attached hereto.

A: Chain saw Body B: Cradle
100: base 200: saw blade
310, 320: left and right saw blade holders
400: linear reciprocation generating part 410: rotational force generating device
411: Driving motor 412: Reduction gear
420: output shaft 430: crankshaft
431: Crank arm 432: Crank pin
440: Linear bearing 450: Linear reciprocating shaft
460: straight carriage band 480: battery
491: Main switch 492: Operation switch
493: power jack 510, 520: first and second wires
530, 540, 550, 560: guide rollers
610, 620 left and right sawtooth tensioners 710, 720: first and second wire tensioners
800: Cutter holder 810: Horizontal guide
811: Horizontal guide grooves 820 and 830: Left and right vertical guides
821, 831: Left and right horizontal sliders
822, 832: Left and right vertical guide bars
824, 834: Left and right vertical guide fixing screws
826, 836: left and right vertical guide grooves 827, 837: saw blade passing groove
840 850: Left and right holders 841, 851: Left and right vertical sliders
842, 852: Left and right holder bars 845, 855 Elastic member
860, 870: Left and right holder adjusting means
861: Information block 862: Guide ball
863: Guide rod 864: Fixing screw
865: Fixing block 866: Coupling ball
867: Set screw 870: Right holder adjustment means
871: Nut box 872: Adjusting nut
873: Adjusting screw 874: Finishing block
874a Pressure screw hole 875: Pressure screw
910: mounting bracket 911: base plate coupling groove
920: Cutting support plate 921: Slit
930: Base coupling bolt 940: Base coupling nut

Claims (28)

A base plate formed in a rectangular shape;
A saw blade installed at a lower end of the base plate so as to be movable left and right;
Left and right saw blade holders installed at left and right lower ends of the base plate to fix left and right ends of the saw blade;
A linear reciprocating motion generating unit for linearly reciprocating the saw blade to the left and right;
A first wire which is inverted at a lower left end of the base plate and is connected between the left saw blade holder and the linear reciprocating movement generating part, and a second wire which is reversed at the upper left and upper right ends of the base plate, A second wire connected between the parts;
A workpiece holder installed on the base plate for fixing the workpiece; And
And a left and right saw blade tensioner for always applying tension to the saw blade.
The method according to claim 1,
The left and right saw blade holders,
Left and right guides fixed to the left and right sides of the base plate,
And a left and a right slider slidable left and right on the left and right guides and fixed to left and right connection portions of the saw blade.
The method according to claim 1,
The left and right saw blade holders,
Left and right guides fixed to the left and right sides of the base plate,
And left and right sliders slidable left and right on the left and right guides and to which the left and right connection portions of the saw blade are fixed,
Wherein the left and right saw blade tensioners comprise:
And a tension spring whose both ends are fixed to the base plate and the sliders of the left and right saw blade holders.
The method according to claim 1,
Further comprising first and second wire tensioners installed on the base plate and applying tension to the first and second wires.
5. The method of claim 4,
Wherein the first wire tensioner comprises:
A support shaft fixed to the base plate,
A tension arm rotatably supported on the base plate through the support shaft,
A tension spring for elastically supporting the tension arm in a direction of applying a tension to the first wire,
And a tension roller rotatably installed on an upper surface of one end of the tension arm and elastically adhered to the first wire,
Wherein the second wire tensioner comprises:
A support shaft fixed to the base plate,
A tension arm rotatably supported on the base plate through the support shaft,
A tension spring for elastically supporting the tension arm in a direction to apply tension to the second wire,
And a tension roller rotatably installed on an upper surface of one end of the tension arm and elastically brought into close contact with the second wire.
6. The method of claim 5,
Wherein the tension arm of the first and second wire tensioners is formed with a slot into which the support shaft is inserted.
6. The method of claim 5,
The tension roller includes:
And a flange formed at a rear end of the first and second wires to prevent the first and second wires from being separated from the rear.
The method according to claim 1,
The first wire may be a wire,
And is reversely guided by a guide roller rotatably installed at a lower left end of the base plate,
One end of which is fixed to the linear reciprocating unit of the linear reciprocation generating unit and the other end is fixed to the slider of the left saw blade holder,
The second wire is reversely guided by guide rollers rotatably mounted on a left upper end, a right upper end and a right lower end of the base plate,
Wherein one end is fixed to the linear reciprocating unit of the linear reciprocation generating unit and the other end is fixed to the slider of the left saw blade holder.
9. The method of claim 8,
The guide rollers,
A roller shaft fixed to the base plate, and rollers rotatably supported on the roller shaft to invert and guide the first and second wires,
Wherein a flange portion is formed at a front end portion of the rollers to prevent the first and second wires from falling forward.
The method according to claim 1,
Wherein the base plate comprises:
A left and right side plate, a connecting portion connecting upper ends of the left and right side plates, and an opening portion formed between the left and right side plates and the connecting portion,
A hollow handle coupled to the left side of the left side plate,
Wherein the handle further comprises a battery compartment formed at a left end thereof and into which a battery is inserted.
The method according to claim 1,
Wherein the linear reciprocating motion generating unit is mounted on a left end of the base plate;
A crankshaft coupled to an output shaft of the torque generating device, and a crank pin fixedly mounted on the crank arm;
A pair of upper and lower linear bearings fixed to the left front surface of the base plate, a linear reciprocating shaft supported to be reciprocatable in the pair of linear bearings, And a linear reciprocating unit interlocked with the pin.
12. The method of claim 11,
Wherein the linear reciprocation-
A main switch mounted on the base plate,
A work switch installed on a handle coupled to the base plate,
And a power jack for connecting a jack of the AC / DC converter.
The method according to claim 1,
Wherein the base plate comprises:
A left and right side plate, a connecting portion connecting upper ends of the left and right side plates, and an opening portion formed between the left and right side plates and the connecting portion,
Wherein the workpiece holder comprises:
A horizontal guide fixed to a front surface of a connection portion of the base plate,
A left and right vertical guide vertically installed on a lower portion of the horizontal guide and guided to be movable in a left and right direction within a range of the opening,
And a left and right holder movably supported by the left and right vertical guides so as to be movable up and down.
The method according to claim 1,
Wherein the base plate includes left and right plates, a connecting portion connecting the upper ends of the left and right plates, and an opening formed between the left and right plates and the connecting portion,
Wherein the workpiece holder comprises:
A horizontal guide fixed to a front surface of a connection portion of the base plate,
A left and right vertical guide vertically installed on a lower portion of the horizontal guide and guided to be movable in a left and right direction within a range of the opening,
And a left and right holder movably supported by the left and right vertical guides so as to be movable up and down.
15. The method of claim 14,
The horizontal guide
And a horizontal guide groove formed on the front surface and elongated in the left and right direction, the left and right end portions and the front surface portion being opened,
Wherein the left and right vertical guides
A left and right horizontal slider slidably inserted into the horizontal guide groove in the left and right directions,
A left and right vertical guide bar vertically installed on a lower portion of the horizontal guide,
A left and right connecting plate connecting the left and right horizontal sliders and the left and right vertical guide bars,
And a vertical guide fixing screw for horizontally guiding and fixing the left and right sliders and the side connecting plate.
16. The method of claim 15,
The left and right vertical guide bars may be formed,
Further comprising left and right vertical guide grooves formed on the front surface and having upper, lower, and front portions opened, and front and rear right and left locking protrusions,
The left-
A left vertical slider that is vertically inserted into the left vertical guide groove,
And a left holder bar having an upper end coupled to the left vertical slider and a front plate and a side plate contacting the front and right sides of the left vertical guide bar,
The right-
A right vertical slider which is vertically inserted into the right vertical guide groove,
And a right holder bar having an upper end coupled to the right vertical slider and a front plate and a side plate contacting the front surface and the left surface of the right vertical guide bar.
17. The method of claim 16,
Further comprising an elastic member coupled to the left and right vertical sliders and resiliently contacting the left and right vertical guide grooves.
18. The method of claim 17,
The left and right vertical sliders are formed in a cylindrical shape,
And a part of the elastic member is inserted into the left and right vertical sliders, and the overhangs are exposed from the outer peripheral surfaces of the left and right vertical sliders and are elastically brought into close contact with the left and right vertical guide grooves. Portable and stationary chainsaw.
17. The method of claim 16,
And a left and right holder adjusting means provided between the base plate and the left and right vertical guide bars for adjusting the positions of the left and right vertical guide bars. .
20. The method of claim 19,
The left holder adjusting means comprises:
A guide bar fixed to the base plate and having a guide hole penetrating right and left, a guide bar movably inserted in the guide hole in the left and right direction and having a right end fixed to the left vertical guide bar, And a fixing screw fastened to the guide block and fixing the guide rod to the guide block.
21. The method of claim 20,
Wherein the guide rod is configured such that the right end of the guide rod is inserted into a coupling hole formed in a fixing block fixed to the left vertical guide and a fixing screw is fastened to a screw hole formed in the fixing block so that the guide rod is fixed to the fixing block And stationary chainsaws.
20. The method of claim 19,
Wherein the right holder adjusting means comprises a nut box having a front opening and fixed to the base plate and having a through hole penetrating right and left, an adjusting nut inserted into the nut box so as to be movable forward and backward, Wherein the adjusting screw is screwed to the adjusting nut and the left end is rotatably connected to the right vertical guide bar.
23. The method of claim 22,
Wherein the right holder adjusting means comprises:
The screw hole of the adjusting nut and the screw thread of the adjusting screw rod have the same pitch and lead angle but have an inner diameter larger than the outer diameter of the male screw portion and inserted into the front opening portion of the nut box, And a tightening screw threadably engaged with the tightening screw hole of the finishing block. ≪ Desc / Clms Page number 13 >
23. The method of claim 22,
A rotation cylinder having a flange formed at a left end of the adjustment screw rod and having a flange formed at a left end thereof and a rotation support hole having an inner diameter smaller than that of the flange and rotatably inserted into the rotation cylinder, And a support member for forming a gap in which the flange portion is formed between the support member and the support member.
The method according to claim 1,
And a holder for supporting the base plate to be used for mounting,
The cradle,
And a cutter supporting plate coupled to the left vertical guide bar for supporting the cutter and having a slit to which the saw blade talks, .
26. The method of claim 25,
A base plate coupling groove formed on a front surface of the mounting post and having upper and lower ends and a front portion opened and a latching protrusion formed on the front left and right sides of the base plate, A coupling bolt,
And a base coupling nut fastened to the base coupling bolt.
26. The method of claim 25,
Wherein the workpiece support plate is coupled to the left vertical guide bar by vertically passing a plurality of screws through a screw hole formed in the left vertical guide bar.
28. The method of claim 27,
Further comprising a pair of front and rear supporting plate fasteners fixed to a lower surface of the cut material supporting plate and fixed to the left vertical guide bar.

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